{"id":913,"date":"2026-03-20T14:50:16","date_gmt":"2026-03-20T14:50:16","guid":{"rendered":"https:\/\/trieuminh.com\/?p=913"},"modified":"2026-06-15T04:09:17","modified_gmt":"2026-06-15T04:09:17","slug":"bien-phap-thi-cong-han-ong-dong","status":"publish","type":"post","link":"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/","title":{"rendered":"BI\u1ec6N PH\u00c1P THI C\u00d4NG H\u00c0N \u1ed0NG \u0110\u1ed2NG"},"content":{"rendered":"<h1 data-section-id=\"jbyvy4\" data-start=\"162\" data-end=\"255\"><span class=\"ez-toc-section\" id=\"BIEN_PHAP_THI_CONG_HAN_ONG_DONG_TRONG_HE_THONG_HVAC\"><\/span><span role=\"text\"><strong data-start=\"164\" data-end=\"255\">BI\u1ec6N PH\u00c1P THI C\u00d4NG H\u00c0N \u1ed0NG \u0110\u1ed2NG TRONG H\u1ec6 TH\u1ed0NG HVAC<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h1>\n<h2 data-section-id=\"1j61wyi\" data-start=\"257\" data-end=\"340\"><span class=\"ez-toc-section\" id=\"1_Tong_quan_ve_bien_phap_thi_cong_han_ong_dong_trong_he_thong_co_dien_MEP\"><\/span><span role=\"text\"><strong data-start=\"260\" data-end=\"340\">1. T\u1ed5ng quan v\u1ec1 bi\u1ec7n ph\u00e1p thi c\u00f4ng h\u00e0n \u1ed1ng \u0111\u1ed3ng trong h\u1ec7 th\u1ed1ng c\u01a1 \u0111i\u1ec7n (MEP)<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"342\" data-end=\"771\">Trong c\u00e1c h\u1ec7 th\u1ed1ng c\u01a1 \u0111i\u1ec7n c\u00f4ng tr\u00ecnh hi\u1ec7n \u0111\u1ea1i, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed trung t\u00e2m, h\u1ec7 th\u1ed1ng chiller, h\u1ec7 th\u1ed1ng c\u1ea5p m\u00f4i ch\u1ea5t l\u1ea1nh v\u00e0 h\u1ec7 th\u1ed1ng c\u1ea5p n\u01b0\u1edbc n\u00f3ng trung t\u00e2m, vi\u1ec7c s\u1eed d\u1ee5ng \u1ed1ng \u0111\u1ed3ng kh\u00f4ng ch\u1ec9 gi\u00fap \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng d\u1eabn nhi\u1ec7t t\u1ed1i \u01b0u, \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc cao m\u00e0 c\u00f2n mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n v\u01b0\u1ee3t tr\u1ed9i trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh l\u00e2u d\u00e0i, t\u1eeb \u0111\u00f3 g\u00f3p ph\u1ea7n n\u00e2ng cao hi\u1ec7u qu\u1ea3 v\u1eadn h\u00e0nh t\u1ed5ng th\u1ec3 c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/p>\n<p data-start=\"773\" data-end=\"1125\">Ch\u00ednh v\u00ec v\u1eady, c\u00f4ng t\u00e1c thi c\u00f4ng h\u00e0n \u1ed1ng \u0111\u1ed3ng kh\u00f4ng \u0111\u01a1n thu\u1ea7n ch\u1ec9 l\u00e0 m\u1ed9t b\u01b0\u1edbc l\u1eafp \u0111\u1eb7t c\u01a1 b\u1ea3n, m\u00e0 th\u1ef1c ch\u1ea5t l\u00e0 m\u1ed9t h\u1ea1ng m\u1ee5c k\u1ef9 thu\u1eadt c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 k\u00edn kh\u00edt c\u1ee7a h\u1ec7 th\u1ed1ng, hi\u1ec7u su\u1ea5t trao \u0111\u1ed5i nhi\u1ec7t, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh \u00e1p su\u1ea5t v\u1eadn h\u00e0nh c\u0169ng nh\u01b0 tu\u1ed5i th\u1ecd c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb quan tr\u1ecdng nh\u01b0 m\u00e1y n\u00e9n, d\u00e0n trao \u0111\u1ed5i nhi\u1ec7t v\u00e0 van ti\u1ebft l\u01b0u trong h\u1ec7 th\u1ed1ng HVAC.<\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#BIEN_PHAP_THI_CONG_HAN_ONG_DONG_TRONG_HE_THONG_HVAC\" >BI\u1ec6N PH\u00c1P THI C\u00d4NG H\u00c0N \u1ed0NG \u0110\u1ed2NG TRONG H\u1ec6 TH\u1ed0NG HVAC<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#1_Tong_quan_ve_bien_phap_thi_cong_han_ong_dong_trong_he_thong_co_dien_MEP\" >1. T\u1ed5ng quan v\u1ec1 bi\u1ec7n ph\u00e1p thi c\u00f4ng h\u00e0n \u1ed1ng \u0111\u1ed3ng trong h\u1ec7 th\u1ed1ng c\u01a1 \u0111i\u1ec7n (MEP)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#2_Cac_phuong_phap_han_ong_dong_duoc_su_dung_pho_bien_trong_thi_cong_thuc_te\" >2. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p h\u00e0n \u1ed1ng \u0111\u1ed3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn trong thi c\u00f4ng th\u1ef1c t\u1ebf<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#21_Phuong_phap_han_mem_Soldering_trong_cac_he_thong_ap_luc_thap\" >2.1. Ph\u01b0\u01a1ng ph\u00e1p h\u00e0n m\u1ec1m (Soldering) trong c\u00e1c h\u1ec7 th\u1ed1ng \u00e1p l\u1ef1c th\u1ea5p<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#22_Phuong_phap_han_cung_Brazing_%E2%80%93_giai_phap_tieu_chuan_trong_he_thong_HVAC\" >2.2. Ph\u01b0\u01a1ng ph\u00e1p h\u00e0n c\u1ee9ng (Brazing) \u2013 gi\u1ea3i ph\u00e1p ti\u00eau chu\u1ea9n trong h\u1ec7 th\u1ed1ng HVAC<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#BIEN_PHAP_THI_CONG_HAN_ONG_DONG\" >BI\u1ec6N PH\u00c1P THI C\u00d4NG H\u00c0N \u1ed0NG \u0110\u1ed2NG<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#23_Phuong_phap_han_bang_den_kho_oxy_%E2%80%93_gas_voi_kha_nang_kiem_soat_nhiet_chinh_xac\" >2.3. Ph\u01b0\u01a1ng ph\u00e1p h\u00e0n b\u1eb1ng \u0111\u00e8n kh\u00f2 oxy \u2013 gas v\u1edbi kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t nhi\u1ec7t ch\u00ednh x\u00e1c<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#3_Quy_trinh_thi_cong_han_ong_dong_chi_tiet_theo_tieu_chuan_ky_thuat\" >3. Quy tr\u00ecnh thi c\u00f4ng h\u00e0n \u1ed1ng \u0111\u1ed3ng chi ti\u1ebft theo ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#31_Cong_tac_chuan_bi_vat_tu_thiet_bi_va_kiem_tra_dieu_kien_thi_cong_truoc_khi_tien_hanh_han\" >3.1. C\u00f4ng t\u00e1c chu\u1ea9n b\u1ecb v\u1eadt t\u01b0, thi\u1ebft b\u1ecb v\u00e0 ki\u1ec3m tra \u0111i\u1ec1u ki\u1ec7n thi c\u00f4ng tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh h\u00e0n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#32_Cong_tac_cat_ong_xu_ly_dau_ong_va_dam_bao_do_chinh_xac_trong_lap_ghep\" >3.2. C\u00f4ng t\u00e1c c\u1eaft \u1ed1ng, x\u1eed l\u00fd \u0111\u1ea7u \u1ed1ng v\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c trong l\u1eafp gh\u00e9p<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#33_Bien_phap_thoi_khi_Nito_trong_qua_trinh_han_nham_bao_ve_be_mat_ben_trong_ong\" >3.3. Bi\u1ec7n ph\u00e1p th\u1ed5i kh\u00ed Nit\u01a1 trong qu\u00e1 tr\u00ecnh h\u00e0n nh\u1eb1m b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t b\u00ean trong \u1ed1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#34_Ky_thuat_gia_nhiet_va_dua_que_han_dung_cach_de_dam_bao_moi_han_dat_chat_luong_cao_nhat\" >3.4. K\u1ef9 thu\u1eadt gia nhi\u1ec7t v\u00e0 \u0111\u01b0a que h\u00e0n \u0111\u00fang c\u00e1ch \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ed1i h\u00e0n \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng cao nh\u1ea5t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#35_Cong_tac_kiem_tra_moi_han_thu_kin_va_nghiem_thu_sau_thi_cong\" >3.5. C\u00f4ng t\u00e1c ki\u1ec3m tra m\u1ed1i h\u00e0n, th\u1eed k\u00edn v\u00e0 nghi\u1ec7m thu sau thi c\u00f4ng<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#4_Cac_loi_pho_bien_trong_thi_cong_han_ong_dong_va_hau_qua_nghiem_trong_doi_voi_he_thong\" >4. C\u00e1c l\u1ed7i ph\u1ed5 bi\u1ebfn trong thi c\u00f4ng h\u00e0n \u1ed1ng \u0111\u1ed3ng v\u00e0 h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng \u0111\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#5_Ket_luan_Tam_quan_trong_cua_bien_phap_thi_cong_han_ong_dong_trong_viec_dam_bao_chat_luong_cong_trinh\" >5. K\u1ebft lu\u1eadn: T\u1ea7m quan tr\u1ecdng c\u1ee7a bi\u1ec7n ph\u00e1p thi c\u00f4ng h\u00e0n \u1ed1ng \u0111\u1ed3ng trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng c\u00f4ng tr\u00ecnh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#6_FILE_BIEN_PHAP_THI_CONG_MAU\" >6. FILE BI\u1ec6N PH\u00c1P THI C\u00d4NG M\u1eaaU:<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#BIEN_PHAP_THI_CONG_HAN_ONG_DONG-2\" >BI\u1ec6N PH\u00c1P THI C\u00d4NG H\u00c0N \u1ed0NG \u0110\u1ed2NG<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#XEM_THEM_CAC_BIEN_PHAP_THI_CONG_DIEU_HOA_KHONG_KHI_VA_THONG_GIO_KHAC\" >XEM TH\u00caM C\u00c1C BI\u1ec6N PH\u00c1P THI C\u00d4NG \u0110I\u1ec0U H\u00d2A KH\u00d4NG KH\u00cd V\u00c0 TH\u00d4NG GI\u00d3 KH\u00c1C:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#THI_CONG_HE_THONG_DIEU_HOA_KHONG_KHI_VA_THONG_GIO\" >THI C\u00d4NG H\u1ec6 TH\u1ed0NG \u0110I\u1ec0U HO\u00c0 KH\u00d4NG KH\u00cd V\u00c0 TH\u00d4NG GI\u00d3<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#7_Lien_He\" >7. Li\u00ean H\u1ec7<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/trieuminh.com\/en\/bien-phap-thi-cong-han-ong-dong\/#Xem_them\" >Xem th\u00eam<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n\n<hr data-start=\"1127\" data-end=\"1130\" \/>\n<h2 data-section-id=\"17fdgay\" data-start=\"1132\" data-end=\"1215\"><span class=\"ez-toc-section\" id=\"2_Cac_phuong_phap_han_ong_dong_duoc_su_dung_pho_bien_trong_thi_cong_thuc_te\"><\/span><span role=\"text\"><strong data-start=\"1135\" data-end=\"1215\">2. C\u00e1c ph\u01b0\u01a1ng ph\u00e1p h\u00e0n \u1ed1ng \u0111\u1ed3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn trong thi c\u00f4ng th\u1ef1c t\u1ebf<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 data-section-id=\"nj0ft1\" data-start=\"1217\" data-end=\"1292\"><span class=\"ez-toc-section\" id=\"21_Phuong_phap_han_mem_Soldering_trong_cac_he_thong_ap_luc_thap\"><\/span><span role=\"text\"><strong data-start=\"1221\" data-end=\"1292\">2.1. Ph\u01b0\u01a1ng ph\u00e1p h\u00e0n m\u1ec1m (Soldering) trong c\u00e1c h\u1ec7 th\u1ed1ng \u00e1p l\u1ef1c th\u1ea5p<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"1294\" data-end=\"1609\">Ph\u01b0\u01a1ng ph\u00e1p h\u00e0n m\u1ec1m l\u00e0 k\u1ef9 thu\u1eadt s\u1eed d\u1ee5ng v\u1eadt li\u1ec7u h\u00e0n c\u00f3 nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y th\u1ea5p, th\u01b0\u1eddng dao \u0111\u1ed9ng trong kho\u1ea3ng t\u1eeb 180 \u0111\u1ebfn 250 \u0111\u1ed9 C, v\u1edbi th\u00e0nh ph\u1ea7n ch\u1ee7 y\u1ebfu l\u00e0 h\u1ee3p kim thi\u1ebfc, nh\u1eb1m li\u00ean k\u1ebft hai \u0111\u1ea7u \u1ed1ng \u0111\u1ed3ng trong c\u00e1c h\u1ec7 th\u1ed1ng kh\u00f4ng y\u00eau c\u1ea7u \u00e1p l\u1ef1c cao ho\u1eb7c kh\u00f4ng ch\u1ecbu t\u00e1c \u0111\u1ed9ng nhi\u1ec7t l\u1edbn trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh l\u00e2u d\u00e0i.<\/p>\n<p data-start=\"1611\" data-end=\"1807\">Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng c\u1ea5p n\u01b0\u1edbc sinh ho\u1ea1t ho\u1eb7c c\u00e1c h\u1ec7 th\u1ed1ng k\u1ef9 thu\u1eadt ph\u1ee5 tr\u1ee3, n\u01a1i m\u00e0 y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 k\u00edn v\u00e0 \u0111\u1ed9 b\u1ec1n m\u1ed1i h\u00e0n kh\u00f4ng qu\u00e1 kh\u1eaft khe nh\u01b0 trong h\u1ec7 th\u1ed1ng l\u1ea1nh.<\/p>\n<hr data-start=\"1809\" data-end=\"1812\" \/>\n<h3 data-section-id=\"obgl4i\" data-start=\"1814\" data-end=\"1900\"><span class=\"ez-toc-section\" id=\"22_Phuong_phap_han_cung_Brazing_%E2%80%93_giai_phap_tieu_chuan_trong_he_thong_HVAC\"><\/span><span role=\"text\"><strong data-start=\"1818\" data-end=\"1900\">2.2. Ph\u01b0\u01a1ng ph\u00e1p h\u00e0n c\u1ee9ng (Brazing) \u2013 gi\u1ea3i ph\u00e1p ti\u00eau chu\u1ea9n trong h\u1ec7 th\u1ed1ng HVAC<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"1902\" data-end=\"2212\">H\u00e0n c\u1ee9ng l\u00e0 ph\u01b0\u01a1ng ph\u00e1p s\u1eed d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao, th\u01b0\u1eddng n\u1eb1m trong kho\u1ea3ng t\u1eeb 600 \u0111\u1ebfn 900 \u0111\u1ed9 C, k\u1ebft h\u1ee3p v\u1edbi c\u00e1c lo\u1ea1i que h\u00e0n ch\u1ee9a h\u1ee3p kim b\u1ea1c ho\u1eb7c \u0111\u1ed3ng-ph\u1ed1t pho, nh\u1eb1m t\u1ea1o ra m\u1ed1i li\u00ean k\u1ebft c\u00f3 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc cao, kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p l\u1ef1c l\u1edbn v\u00e0 \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 k\u00edn tuy\u1ec7t \u0111\u1ed1i cho h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng d\u1eabn m\u00f4i ch\u1ea5t l\u1ea1nh.<\/p>\n<p data-start=\"2214\" data-end=\"2529\">Trong th\u1ef1c t\u1ebf thi c\u00f4ng h\u1ec7 th\u1ed1ng \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed VRV\/VRF, h\u1ec7 th\u1ed1ng chiller ho\u1eb7c h\u1ec7 th\u1ed1ng kho l\u1ea1nh c\u00f4ng nghi\u1ec7p, ph\u01b0\u01a1ng ph\u00e1p h\u00e0n c\u1ee9ng g\u1ea7n nh\u01b0 l\u00e0 ti\u00eau chu\u1ea9n b\u1eaft bu\u1ed9c, b\u1edfi v\u00ec ch\u1ec9 c\u00f3 ph\u01b0\u01a1ng ph\u00e1p n\u00e0y m\u1edbi \u0111\u1ea3m b\u1ea3o \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u kh\u1eaft khe v\u1ec1 k\u1ef9 thu\u1eadt, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong \u0111i\u1ec1u ki\u1ec7n \u00e1p su\u1ea5t cao v\u00e0 m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c li\u00ean t\u1ee5c.<\/p>\n<figure id=\"attachment_915\" aria-describedby=\"caption-attachment-915\" style=\"width: 783px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-915\" title=\"BI\u1ec6N PH\u00c1P THI C\u00d4NG H\u00c0N \u1ed0NG \u0110\u1ed2NG\" src=\"https:\/\/trieuminh.com\/wp-content\/uploads\/2026\/03\/Han-ong-dong.png\" alt=\"BI\u1ec6N PH\u00c1P THI C\u00d4NG H\u00c0N \u1ed0NG \u0110\u1ed2NG\" width=\"783\" height=\"1175\" srcset=\"https:\/\/trieuminh.com\/wp-content\/uploads\/2026\/03\/Han-ong-dong.png 1024w, https:\/\/trieuminh.com\/wp-content\/uploads\/2026\/03\/Han-ong-dong-768x1152.png 768w\" sizes=\"auto, (max-width: 783px) 100vw, 783px\" \/><figcaption id=\"caption-attachment-915\" class=\"wp-caption-text\"><strong>BI\u1ec6N PH\u00c1P THI C\u00d4NG H\u00c0N \u1ed0NG \u0110\u1ed2NG<\/strong><\/figcaption><\/figure>\n<h4 data-start=\"321\" data-end=\"462\"><span class=\"ez-toc-section\" id=\"BIEN_PHAP_THI_CONG_HAN_ONG_DONG\"><\/span><div style=\"margin:8px 0;\">\n            <a href=\"#\" class=\"dl-item\"\n               data-link=\"https:\/\/trieuminh.com\/wp-content\/uploads\/2026\/03\/BPTCong-han-ong-dong.doc\"\n               data-time=\"45\"\n               data-text=\"BI\u1ec6N PH\u00c1P THI C\u00d4NG H\u00c0N \u1ed0NG \u0110\u1ed2NG\"\n               style=\"color:#007bff;font-weight:bold;text-transform:uppercase;text-decoration:none;\">\n               BI\u1ec6N PH\u00c1P THI C\u00d4NG H\u00c0N \u1ed0NG \u0110\u1ed2NG\n            <\/a>\n        <\/div><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<hr data-start=\"2531\" data-end=\"2534\" \/>\n<h3 data-section-id=\"sp48n3\" data-start=\"2536\" data-end=\"2626\"><span class=\"ez-toc-section\" id=\"23_Phuong_phap_han_bang_den_kho_oxy_%E2%80%93_gas_voi_kha_nang_kiem_soat_nhiet_chinh_xac\"><\/span><span role=\"text\"><strong data-start=\"2540\" data-end=\"2626\">2.3. Ph\u01b0\u01a1ng ph\u00e1p h\u00e0n b\u1eb1ng \u0111\u00e8n kh\u00f2 oxy \u2013 gas v\u1edbi kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t nhi\u1ec7t ch\u00ednh x\u00e1c<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"2628\" data-end=\"2985\">Vi\u1ec7c s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng \u0111\u00e8n kh\u00f2 k\u1ebft h\u1ee3p gi\u1eefa oxy v\u00e0 c\u00e1c lo\u1ea1i kh\u00ed ch\u00e1y nh\u01b0 acetylene ho\u1eb7c LPG gi\u00fap t\u1ea1o ra ng\u1ecdn l\u1eeda c\u00f3 nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 \u1ed5n \u0111\u1ecbnh, t\u1eeb \u0111\u00f3 cho ph\u00e9p ng\u01b0\u1eddi th\u1ee3 d\u1ec5 d\u00e0ng ki\u1ec3m so\u00e1t v\u00f9ng gia nhi\u1ec7t, \u0111\u1ea3m b\u1ea3o nhi\u1ec7t l\u01b0\u1ee3ng ph\u00e2n b\u1ed1 \u0111\u1ec1u xung quanh khu v\u1ef1c m\u1ed1i h\u00e0n, tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 nhi\u1ec7t c\u1ee5c b\u1ed9 ho\u1eb7c thi\u1ebfu nhi\u1ec7t g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng li\u00ean k\u1ebft kim lo\u1ea1i.<\/p>\n<hr data-start=\"2987\" data-end=\"2990\" \/>\n<h2 data-section-id=\"mesnl8\" data-start=\"2992\" data-end=\"3067\"><span class=\"ez-toc-section\" id=\"3_Quy_trinh_thi_cong_han_ong_dong_chi_tiet_theo_tieu_chuan_ky_thuat\"><\/span><span role=\"text\"><strong data-start=\"2995\" data-end=\"3067\">3. Quy tr\u00ecnh thi c\u00f4ng h\u00e0n \u1ed1ng \u0111\u1ed3ng chi ti\u1ebft theo ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<div class=\"qMYqUG_convSearchResultHighlightRoot\">\n<div class=\"\" data-turn-id-container=\"request-WEB:411c7a50-a324-45bc-9b62-0e4f1eccb5f6-0\" data-is-intersecting=\"true\">\n<section class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [&amp;:has([data-writing-block])&gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:411c7a50-a324-45bc-9b62-0e4f1eccb5f6-0\" data-turn-id-container=\"request-WEB:411c7a50-a324-45bc-9b62-0e4f1eccb5f6-0\" data-testid=\"conversation-turn-2\" data-scroll-anchor=\"false\" data-turn=\"assistant\">\n<div class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\">\n<div class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\">\n<div class=\"flex max-w-full flex-col gap-4 grow\">\n<div class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+&amp;]:mt-1\" dir=\"auto\" tabindex=\"0\" data-message-author-role=\"assistant\" data-message-id=\"254dbf3f-9e4d-4efc-9ea9-7aa2917a7230\" data-message-model-slug=\"gpt-5-5\" data-turn-start-message=\"true\">\n<div class=\"flex w-full flex-col gap-1 empty:hidden\">\n<div class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\">\n<h3 data-section-id=\"yra2t9\" data-start=\"73\" data-end=\"171\"><span class=\"ez-toc-section\" id=\"31_Cong_tac_chuan_bi_vat_tu_thiet_bi_va_kiem_tra_dieu_kien_thi_cong_truoc_khi_tien_hanh_han\"><\/span><strong>3.1. C\u00f4ng t\u00e1c chu\u1ea9n b\u1ecb v\u1eadt t\u01b0, thi\u1ebft b\u1ecb v\u00e0 ki\u1ec3m tra \u0111i\u1ec1u ki\u1ec7n thi c\u00f4ng tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh h\u00e0n<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"173\" data-end=\"668\">Tr\u01b0\u1edbc khi tri\u1ec3n khai c\u00f4ng t\u00e1c h\u00e0n \u1ed1ng \u0111\u1ed3ng cho h\u1ec7 th\u1ed1ng \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, h\u1ec7 th\u1ed1ng Chiller ho\u1eb7c h\u1ec7 th\u1ed1ng l\u1ea1nh c\u00f4ng nghi\u1ec7p, \u0111\u01a1n v\u1ecb thi c\u00f4ng c\u1ea7n ti\u1ebfn h\u00e0nh ki\u1ec3m tra to\u00e0n di\u1ec7n v\u1eadt t\u01b0, thi\u1ebft b\u1ecb v\u00e0 \u0111i\u1ec1u ki\u1ec7n hi\u1ec7n tr\u01b0\u1eddng nh\u1eb1m \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh thi c\u00f4ng di\u1ec5n ra an to\u00e0n, \u0111\u00fang k\u1ef9 thu\u1eadt v\u00e0 \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng cao nh\u1ea5t. To\u00e0n b\u1ed9 \u1ed1ng \u0111\u1ed3ng s\u1eed d\u1ee5ng ph\u1ea3i \u0111\u00fang ch\u1ee7ng lo\u1ea1i, \u0111\u00fang \u0111\u01b0\u1eddng k\u00ednh v\u00e0 \u0111\u1ed9 d\u00e0y theo b\u1ea3n v\u1ebd thi\u1ebft k\u1ebf, \u0111\u1ed3ng th\u1eddi \u0111\u00e1p \u1ee9ng \u0111\u1ea7y \u0111\u1ee7 c\u00e1c ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t c\u0169ng nh\u01b0 y\u00eau c\u1ea7u c\u1ee7a d\u1ef1 \u00e1n.<\/p>\n<p data-start=\"670\" data-end=\"1063\">B\u1ec1 m\u1eb7t \u1ed1ng \u0111\u1ed3ng c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra k\u1ef9 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u00f4ng xu\u1ea5t hi\u1ec7n t\u00ecnh tr\u1ea1ng m\u00f3p m\u00e9o, n\u1ee9t, tr\u1ea7y x\u01b0\u1edbc s\u00e2u ho\u1eb7c oxy h\u00f3a qu\u00e1 m\u1ee9c, b\u1edfi c\u00e1c l\u1ed7i n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 k\u00edn v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a m\u1ed1i h\u00e0n sau khi ho\u00e0n thi\u1ec7n. Ngo\u00e0i ra, c\u00e1c ph\u1ee5 ki\u1ec7n \u0111i k\u00e8m nh\u01b0 co, t\u00ea, c\u00fat n\u1ed1i, \u0111\u1ea7u n\u1ed1i chuy\u1ec3n ti\u1ebfp v\u00e0 van kh\u00f3a c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra \u0111\u1ed3ng b\u1ed9 nh\u1eb1m tr\u00e1nh sai l\u1ec7ch k\u00edch th\u01b0\u1edbc trong qu\u00e1 tr\u00ecnh l\u1eafp gh\u00e9p.<\/p>\n<p data-start=\"1065\" data-end=\"1474\">Song song v\u1edbi c\u00f4ng t\u00e1c ki\u1ec3m tra v\u1eadt t\u01b0, \u0111\u1ed9i thi c\u00f4ng ph\u1ea3i chu\u1ea9n b\u1ecb \u0111\u1ea7y \u0111\u1ee7 thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng ph\u1ee5c v\u1ee5 qu\u00e1 tr\u00ecnh h\u00e0n nh\u01b0 \u0111\u00e8n kh\u00f2 gas, b\u00ecnh oxy \u2013 gas, que h\u00e0n b\u1ea1c, van \u0111i\u1ec1u \u00e1p, \u0111\u1ed3ng h\u1ed3 \u0111o \u00e1p su\u1ea5t, b\u1ed9 d\u1ee5ng c\u1ee5 nong loe, dao c\u1eaft \u1ed1ng \u0111\u1ed3ng, m\u00e1y h\u00fat ch\u00e2n kh\u00f4ng v\u00e0 h\u1ec7 th\u1ed1ng c\u1ea5p kh\u00ed Nit\u01a1. C\u00e1c thi\u1ebft b\u1ecb ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m \u0111\u1ecbnh t\u00ecnh tr\u1ea1ng ho\u1ea1t \u0111\u1ed9ng tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n lao \u0111\u1ed9ng c\u0169ng nh\u01b0 ch\u1ea5t l\u01b0\u1ee3ng thi c\u00f4ng.<\/p>\n<p data-start=\"1476\" data-end=\"1936\">M\u1ed9t trong nh\u1eefng b\u01b0\u1edbc quan tr\u1ecdng kh\u00f4ng th\u1ec3 b\u1ecf qua l\u00e0 v\u1ec7 sinh b\u1ec1 m\u1eb7t \u1ed1ng \u0111\u1ed3ng tr\u01b0\u1edbc khi h\u00e0n. Ng\u01b0\u1eddi thi c\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng gi\u1ea5y nh\u00e1m chuy\u00ean d\u1ee5ng ho\u1eb7c b\u00e0n ch\u1ea3i m\u1ec1m \u0111\u1ec3 l\u00e0m s\u1ea1ch l\u1edbp oxit b\u00ean ngo\u00e0i, \u0111\u1ed3ng th\u1eddi d\u00f9ng dung m\u00f4i v\u1ec7 sinh \u0111\u1ec3 lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n d\u1ea7u m\u1ee1, b\u1ee5i b\u1ea9n v\u00e0 t\u1ea1p ch\u1ea5t b\u00e1m tr\u00ean b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac. C\u00f4ng t\u00e1c l\u00e0m s\u1ea1ch \u0111\u00fang k\u1ef9 thu\u1eadt s\u1ebd gi\u00fap v\u1eadt li\u1ec7u h\u00e0n b\u00e1m d\u00ednh t\u1ed1t h\u01a1n, t\u0103ng kh\u1ea3 n\u0103ng th\u1ea9m th\u1ea5u kim lo\u1ea1i v\u00e0 \u0111\u1ea3m b\u1ea3o m\u1ed1i n\u1ed1i \u0111\u1ea1t \u0111\u1ed9 k\u00edn tuy\u1ec7t \u0111\u1ed1i sau khi ho\u00e0n thi\u1ec7n.<\/p>\n<p data-start=\"1938\" data-end=\"2294\">Ngo\u00e0i ra, khu v\u1ef1c thi c\u00f4ng c\u0169ng c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra v\u1ec1 \u0111i\u1ec1u ki\u1ec7n an to\u00e0n ph\u00f2ng ch\u00e1y ch\u1eefa ch\u00e1y, \u0111\u1ed9 th\u00f4ng tho\u00e1ng v\u00e0 kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn thi\u1ebft b\u1ecb. \u0110\u1ed1i v\u1edbi c\u00e1c c\u00f4ng tr\u00ecnh \u0111ang v\u1eadn h\u00e0nh ho\u1eb7c thi c\u00f4ng trong kh\u00f4ng gian k\u00edn, c\u1ea7n b\u1ed1 tr\u00ed \u0111\u1ea7y \u0111\u1ee7 b\u00ecnh ch\u1eefa ch\u00e1y, bi\u1ec3n c\u1ea3nh b\u00e1o v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p th\u00f4ng gi\u00f3 nh\u1eb1m h\u1ea1n ch\u1ebf r\u1ee7i ro trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng nhi\u1ec7t \u0111\u1ed9 cao \u0111\u1ec3 h\u00e0n \u1ed1ng.<\/p>\n<hr data-start=\"2296\" data-end=\"2299\" \/>\n<h3 data-section-id=\"1c5h4i4\" data-start=\"2301\" data-end=\"2380\"><span class=\"ez-toc-section\" id=\"32_Cong_tac_cat_ong_xu_ly_dau_ong_va_dam_bao_do_chinh_xac_trong_lap_ghep\"><\/span><strong>3.2. C\u00f4ng t\u00e1c c\u1eaft \u1ed1ng, x\u1eed l\u00fd \u0111\u1ea7u \u1ed1ng v\u00e0 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c trong l\u1eafp gh\u00e9p<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"2382\" data-end=\"2722\">C\u00f4ng t\u00e1c c\u1eaft v\u00e0 x\u1eed l\u00fd \u0111\u1ea7u \u1ed1ng \u0111\u1ed3ng \u0111\u00f3ng vai tr\u00f2 r\u1ea5t quan tr\u1ecdng trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng t\u1ed5ng th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng l\u1ea1nh. Trong qu\u00e1 tr\u00ecnh thi c\u00f4ng, \u1ed1ng \u0111\u1ed3ng ph\u1ea3i \u0111\u01b0\u1ee3c c\u1eaft b\u1eb1ng dao c\u1eaft chuy\u00ean d\u1ee5ng nh\u1eb1m t\u1ea1o ra m\u1eb7t c\u1eaft vu\u00f4ng g\u00f3c tuy\u1ec7t \u0111\u1ed1i v\u1edbi tr\u1ee5c \u1ed1ng, gi\u00fap t\u0103ng \u0111\u1ed9 ch\u00ednh x\u00e1c khi l\u1eafp gh\u00e9p v\u00e0 h\u1ea1n ch\u1ebf t\u1ed1i \u0111a nguy c\u01a1 h\u1edf m\u1ed1i n\u1ed1i sau n\u00e0y.<\/p>\n<p data-start=\"2724\" data-end=\"3090\">Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c d\u1ee5ng c\u1ee5 kh\u00f4ng ph\u00f9 h\u1ee3p nh\u01b0 m\u00e1y c\u1eaft t\u1ed1c \u0111\u1ed9 cao ho\u1eb7c c\u01b0a tay c\u00f3 th\u1ec3 l\u00e0m bi\u1ebfn d\u1ea1ng \u0111\u1ea7u \u1ed1ng, t\u1ea1o ba via ho\u1eb7c khi\u1ebfn m\u00e9p c\u1eaft kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u. Nh\u1eefng l\u1ed7i n\u00e0y kh\u00f4ng ch\u1ec9 l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng li\u00ean k\u1ebft gi\u1eefa c\u00e1c b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac m\u00e0 c\u00f2n c\u00f3 th\u1ec3 g\u00e2y c\u1ea3n tr\u1edf l\u01b0u l\u01b0\u1ee3ng m\u00f4i ch\u1ea5t l\u1ea1nh l\u01b0u th\u00f4ng trong h\u1ec7 th\u1ed1ng, l\u00e0m gi\u1ea3m hi\u1ec7u su\u1ea5t v\u1eadn h\u00e0nh c\u1ee7a thi\u1ebft b\u1ecb \u0111i\u1ec1u h\u00f2a ho\u1eb7c Chiller.<\/p>\n<p data-start=\"3092\" data-end=\"3535\">Sau khi c\u1eaft, to\u00e0n b\u1ed9 ph\u1ea7n ba via b\u00ean trong \u0111\u1ea7u \u1ed1ng c\u1ea7n \u0111\u01b0\u1ee3c x\u1eed l\u00fd s\u1ea1ch s\u1ebd b\u1eb1ng d\u1ee5ng c\u1ee5 chuy\u00ean d\u1ee5ng \u0111\u1ec3 tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng bong c\u1eb7n kim lo\u1ea1i trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh. \u0110\u1ea7u \u1ed1ng ti\u1ebfp t\u1ee5c \u0111\u01b0\u1ee3c v\u1ec7 sinh k\u1ef9 b\u1eb1ng gi\u1ea5y nh\u00e1m ho\u1eb7c kh\u0103n s\u1ea1ch nh\u1eb1m lo\u1ea1i b\u1ecf l\u1edbp oxy h\u00f3a v\u00e0 b\u1ee5i kim lo\u1ea1i c\u00f2n s\u00f3t l\u1ea1i. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, ng\u01b0\u1eddi th\u1ee3 c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n thao t\u00e1c v\u00e1t m\u00e9p nh\u1eb9 \u0111\u1ea7u \u1ed1ng nh\u1eb1m t\u1ea1o khe h\u1edf ph\u00f9 h\u1ee3p cho v\u1eadt li\u1ec7u h\u00e0n th\u1ea9m th\u1ea5u \u0111\u1ec1u v\u00e0o to\u00e0n b\u1ed9 chu vi m\u1ed1i n\u1ed1i.<\/p>\n<p data-start=\"3537\" data-end=\"3860\">Khi ti\u1ebfn h\u00e0nh l\u1eafp gh\u00e9p, c\u00e1c chi ti\u1ebft ph\u1ea3i \u0111\u01b0\u1ee3c c\u0103n ch\u1ec9nh \u0111\u1ed3ng t\u00e2m v\u00e0 \u0111\u00fang kho\u1ea3ng c\u00e1ch k\u1ef9 thu\u1eadt \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kim lo\u1ea1i h\u00e0n c\u00f3 th\u1ec3 lan \u0111\u1ec1u nh\u1edd hi\u1ec7n t\u01b0\u1ee3ng mao d\u1eabn. Vi\u1ec7c l\u1eafp gh\u00e9p sai l\u1ec7ch t\u00e2m ho\u1eb7c khe h\u1edf qu\u00e1 l\u1edbn s\u1ebd khi\u1ebfn m\u1ed1i h\u00e0n kh\u00f3 \u0111\u1ea1t \u0111\u1ed9 k\u00edn c\u1ea7n thi\u1ebft, \u0111\u1ed3ng th\u1eddi l\u00e0m t\u0103ng nguy c\u01a1 n\u1ee9t ho\u1eb7c r\u00f2 r\u1ec9 trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh l\u00e2u d\u00e0i.<\/p>\n<p data-start=\"3862\" data-end=\"4115\">Ngo\u00e0i ra, trong qu\u00e1 tr\u00ecnh thao t\u00e1c, ng\u01b0\u1eddi thi c\u00f4ng c\u1ea7n h\u1ea1n ch\u1ebf t\u1ed1i \u0111a vi\u1ec7c \u0111\u1ec3 b\u1ee5i b\u1ea9n, n\u01b0\u1edbc ho\u1eb7c d\u1ecb v\u1eadt l\u1ecdt v\u00e0o b\u00ean trong \u0111\u01b0\u1eddng \u1ed1ng. C\u00e1c \u0111\u1ea7u \u1ed1ng ch\u01b0a thi c\u00f4ng n\u00ean \u0111\u01b0\u1ee3c b\u1ecbt k\u00edn t\u1ea1m th\u1eddi nh\u1eb1m b\u1ea3o v\u1ec7 \u0111\u1ed9 s\u1ea1ch c\u1ee7a h\u1ec7 th\u1ed1ng tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh h\u00e0n ho\u00e0n thi\u1ec7n.<\/p>\n<hr data-start=\"4117\" data-end=\"4120\" \/>\n<h3 data-section-id=\"17y6i88\" data-start=\"4122\" data-end=\"4207\"><span class=\"ez-toc-section\" id=\"33_Bien_phap_thoi_khi_Nito_trong_qua_trinh_han_nham_bao_ve_be_mat_ben_trong_ong\"><\/span><strong>3.3. Bi\u1ec7n ph\u00e1p th\u1ed5i kh\u00ed Nit\u01a1 trong qu\u00e1 tr\u00ecnh h\u00e0n nh\u1eb1m b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t b\u00ean trong \u1ed1ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"4209\" data-end=\"4656\">Trong thi c\u00f4ng h\u1ec7 th\u1ed1ng \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed v\u00e0 h\u1ec7 th\u1ed1ng l\u1ea1nh c\u00f4ng nghi\u1ec7p, bi\u1ec7n ph\u00e1p th\u1ed5i kh\u00ed Nit\u01a1 khi h\u00e0n \u1ed1ng \u0111\u1ed3ng \u0111\u01b0\u1ee3c xem l\u00e0 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt b\u1eaft bu\u1ed9c nh\u1eb1m \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 s\u1ea1ch b\u00ean trong \u0111\u01b0\u1eddng \u1ed1ng v\u00e0 b\u1ea3o v\u1ec7 tu\u1ed5i th\u1ecd c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng. Trong qu\u00e1 tr\u00ecnh h\u00e0n, nhi\u1ec7t \u0111\u1ed9 cao t\u00e1c \u0111\u1ed9ng tr\u1ef1c ti\u1ebfp l\u00ean b\u1ec1 m\u1eb7t kim lo\u1ea1i s\u1ebd l\u00e0m ph\u00e1t sinh hi\u1ec7n t\u01b0\u1ee3ng oxy h\u00f3a n\u1ebfu b\u00ean trong \u1ed1ng v\u1eabn c\u00f2n kh\u00f4ng kh\u00ed, t\u1eeb \u0111\u00f3 h\u00ecnh th\u00e0nh l\u1edbp mu\u1ed9i than v\u00e0 c\u1eb7n oxit b\u00e1m b\u00ean trong th\u00e0nh \u1ed1ng.<\/p>\n<p data-start=\"4658\" data-end=\"4957\">\u0110\u1ec3 ng\u0103n ch\u1eb7n t\u00ecnh tr\u1ea1ng n\u00e0y, \u0111\u1ed9i thi c\u00f4ng c\u1ea7n c\u1ea5p kh\u00ed Nit\u01a1 li\u00ean t\u1ee5c v\u1edbi l\u01b0u l\u01b0\u1ee3ng v\u00e0 \u00e1p su\u1ea5t ph\u00f9 h\u1ee3p v\u00e0o b\u00ean trong \u0111\u01b0\u1eddng \u1ed1ng trong su\u1ed1t qu\u00e1 tr\u00ecnh h\u00e0n. D\u00f2ng kh\u00ed Nit\u01a1 c\u00f3 t\u00e1c d\u1ee5ng thay th\u1ebf oxy trong \u1ed1ng, gi\u00fap h\u1ea1n ch\u1ebf ph\u1ea3n \u1ee9ng oxy h\u00f3a v\u00e0 gi\u1eef cho b\u1ec1 m\u1eb7t b\u00ean trong lu\u00f4n s\u1ea1ch s\u1ebd sau khi ho\u00e0n thi\u1ec7n m\u1ed1i n\u1ed1i.<\/p>\n<p data-start=\"4959\" data-end=\"5389\">N\u1ebfu kh\u00f4ng th\u1ef1c hi\u1ec7n bi\u1ec7n ph\u00e1p th\u1ed5i Nit\u01a1, c\u00e1c c\u1eb7n b\u1ea9n sinh ra trong qu\u00e1 tr\u00ecnh h\u00e0n c\u00f3 th\u1ec3 b\u1ecb cu\u1ed1n theo d\u00f2ng m\u00f4i ch\u1ea5t l\u1ea1nh khi h\u1ec7 th\u1ed1ng v\u1eadn h\u00e0nh, t\u1eeb \u0111\u00f3 g\u00e2y ngh\u1eb9t van ti\u1ebft l\u01b0u, t\u1eafc l\u01b0\u1edbi l\u1ecdc ho\u1eb7c l\u00e0m h\u1ecfng c\u00e1c chi ti\u1ebft c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c cao b\u00ean trong m\u00e1y n\u00e9n. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn khi\u1ebfn h\u1ec7 th\u1ed1ng l\u1ea1nh ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh, gi\u1ea3m hi\u1ec7u su\u1ea5t l\u00e0m l\u1ea1nh v\u00e0 ph\u00e1t sinh chi ph\u00ed s\u1eeda ch\u1eefa r\u1ea5t l\u1edbn sau th\u1eddi gian ng\u1eafn s\u1eed d\u1ee5ng.<\/p>\n<p data-start=\"5391\" data-end=\"5676\">Trong qu\u00e1 tr\u00ecnh c\u1ea5p kh\u00ed Nit\u01a1, \u00e1p su\u1ea5t c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t \u1edf m\u1ee9c th\u1ea5p \u0111\u1ec3 tr\u00e1nh \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn v\u00f9ng h\u00e0n ho\u1eb7c l\u00e0m x\u00e1o tr\u1ed9n d\u00f2ng kim lo\u1ea1i n\u00f3ng ch\u1ea3y. \u0110\u1ed3ng th\u1eddi, ng\u01b0\u1eddi thi c\u00f4ng ph\u1ea3i \u0111\u1ea3m b\u1ea3o \u0111\u1ea7u ra c\u1ee7a \u0111\u01b0\u1eddng \u1ed1ng lu\u00f4n th\u00f4ng tho\u00e1ng \u0111\u1ec3 kh\u00ed c\u00f3 th\u1ec3 l\u01b0u th\u00f4ng li\u00ean t\u1ee5c trong su\u1ed1t th\u1eddi gian gia nhi\u1ec7t.<\/p>\n<p data-start=\"5678\" data-end=\"5918\">\u0110\u1ed1i v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt cao nh\u01b0 VRV, VRF ho\u1eb7c Chiller trung t\u00e2m, vi\u1ec7c th\u1ed5i Nit\u01a1 \u0111\u00fang quy tr\u00ecnh kh\u00f4ng ch\u1ec9 l\u00e0 y\u00eau c\u1ea7u v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng thi c\u00f4ng m\u00e0 c\u00f2n l\u00e0 \u0111i\u1ec1u ki\u1ec7n quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ebf \u0111\u1ed9 b\u1ea3o h\u00e0nh c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb.<\/p>\n<p data-start=\"5678\" data-end=\"5918\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-921\" src=\"https:\/\/trieuminh.com\/wp-content\/uploads\/2026\/03\/HAN-ONG-DONG-2png.png\" alt=\"H\u00c0N \u1ed0NG \u0110\u1ed2NG\" width=\"824\" height=\"824\" srcset=\"https:\/\/trieuminh.com\/wp-content\/uploads\/2026\/03\/HAN-ONG-DONG-2png.png 1024w, https:\/\/trieuminh.com\/wp-content\/uploads\/2026\/03\/HAN-ONG-DONG-2png-768x768.png 768w\" sizes=\"auto, (max-width: 824px) 100vw, 824px\" \/><\/p>\n<hr data-start=\"5920\" data-end=\"5923\" \/>\n<h3 data-section-id=\"az2mvc\" data-start=\"5925\" data-end=\"6020\"><span class=\"ez-toc-section\" id=\"34_Ky_thuat_gia_nhiet_va_dua_que_han_dung_cach_de_dam_bao_moi_han_dat_chat_luong_cao_nhat\"><\/span><strong>3.4. K\u1ef9 thu\u1eadt gia nhi\u1ec7t v\u00e0 \u0111\u01b0a que h\u00e0n \u0111\u00fang c\u00e1ch \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ed1i h\u00e0n \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng cao nh\u1ea5t<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"6022\" data-end=\"6374\">Trong qu\u00e1 tr\u00ecnh h\u00e0n \u1ed1ng \u0111\u1ed3ng, k\u1ef9 thu\u1eadt gia nhi\u1ec7t v\u00e0 thao t\u00e1c \u0111\u01b0a que h\u00e0n c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc, \u0111\u1ed9 k\u00edn v\u00e0 t\u00ednh th\u1ea9m m\u1ef9 c\u1ee7a m\u1ed1i n\u1ed1i. Ng\u01b0\u1eddi th\u1ee3 c\u1ea7n th\u1ef1c hi\u1ec7n vi\u1ec7c gia nhi\u1ec7t \u0111\u1ed3ng \u0111\u1ec1u xung quanh to\u00e0n b\u1ed9 chu vi m\u1ed1i n\u1ed1i nh\u1eb1m \u0111\u1ea3m b\u1ea3o nhi\u1ec7t l\u01b0\u1ee3ng ph\u00e2n b\u1ed1 \u1ed5n \u0111\u1ecbnh, tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng t\u1eadp trung nhi\u1ec7t c\u1ee5c b\u1ed9 g\u00e2y ch\u00e1y \u1ed1ng ho\u1eb7c bi\u1ebfn d\u1ea1ng v\u1eadt li\u1ec7u.<\/p>\n<p data-start=\"6376\" data-end=\"6764\">Ng\u1ecdn l\u1eeda h\u00e0n ph\u1ea3i \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh ph\u00f9 h\u1ee3p v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 k\u00edch th\u01b0\u1edbc t\u00f9y theo \u0111\u01b0\u1eddng k\u00ednh \u1ed1ng \u0111\u1ed3ng. Khi b\u1eaft \u0111\u1ea7u gia nhi\u1ec7t, c\u1ea7n \u01b0u ti\u00ean l\u00e0m n\u00f3ng v\u1eadt li\u1ec7u n\u1ec1n tr\u01b0\u1edbc thay v\u00ec \u0111\u1ed1t tr\u1ef1c ti\u1ebfp v\u00e0o que h\u00e0n. Khi nhi\u1ec7t \u0111\u1ed9 t\u1ea1i v\u1ecb tr\u00ed n\u1ed1i \u0111\u1ea1t y\u00eau c\u1ea7u, que h\u00e0n b\u1ea1c s\u1ebd t\u1ef1 \u0111\u1ed9ng n\u00f3ng ch\u1ea3y v\u00e0 th\u1ea9m th\u1ea5u v\u00e0o khe h\u1edf gi\u1eefa hai b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac nh\u1edd hi\u1ec7n t\u01b0\u1ee3ng mao d\u1eabn, t\u1eeb \u0111\u00f3 t\u1ea1o th\u00e0nh m\u1ed1i li\u00ean k\u1ebft k\u00edn v\u00e0 \u0111\u1ed3ng \u0111\u1ec1u.<\/p>\n<p data-start=\"6766\" data-end=\"7197\">Trong su\u1ed1t qu\u00e1 tr\u00ecnh thao t\u00e1c, ng\u01b0\u1eddi thi c\u00f4ng c\u1ea7n di chuy\u1ec3n ng\u1ecdn l\u1eeda li\u00ean t\u1ee5c quanh m\u1ed1i n\u1ed1i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh. N\u1ebfu nhi\u1ec7t \u0111\u1ed9 qu\u00e1 th\u1ea5p, kim lo\u1ea1i h\u00e0n s\u1ebd kh\u00f4ng th\u1ec3 th\u1ea9m th\u1ea5u ho\u00e0n to\u00e0n v\u00e0o khe h\u1edf, d\u1eabn \u0111\u1ebfn hi\u1ec7n t\u01b0\u1ee3ng h\u00e0n kh\u00f4ng ng\u1ea5u v\u00e0 d\u1ec5 ph\u00e1t sinh r\u00f2 r\u1ec9 khi th\u1eed \u00e1p. Ng\u01b0\u1ee3c l\u1ea1i, n\u1ebfu nhi\u1ec7t \u0111\u1ed9 qu\u00e1 cao, b\u1ec1 m\u1eb7t \u1ed1ng \u0111\u1ed3ng c\u00f3 th\u1ec3 b\u1ecb ch\u00e1y \u0111en, bi\u1ebfn d\u1ea1ng ho\u1eb7c l\u00e0m gi\u1ea3m c\u01a1 t\u00ednh c\u1ee7a v\u1eadt li\u1ec7u, \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn tu\u1ed5i th\u1ecd c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<p data-start=\"7199\" data-end=\"7450\">Ngo\u00e0i y\u1ebfu t\u1ed1 k\u1ef9 thu\u1eadt, vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang lo\u1ea1i que h\u00e0n c\u0169ng r\u1ea5t quan tr\u1ecdng. \u0110\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng l\u1ea1nh v\u00e0 \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, que h\u00e0n b\u1ea1c th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0u ti\u00ean s\u1eed d\u1ee5ng do c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p l\u1ef1c cao, \u0111\u1ed9 b\u1ec1n t\u1ed1t v\u00e0 kh\u1ea3 n\u0103ng li\u00ean k\u1ebft \u1ed5n \u0111\u1ecbnh v\u1edbi v\u1eadt li\u1ec7u \u0111\u1ed3ng.<\/p>\n<p data-start=\"7452\" data-end=\"7644\">Sau khi ho\u00e0n th\u00e0nh m\u1ed1i h\u00e0n, c\u1ea7n \u0111\u1ec3 v\u1eadt li\u1ec7u ngu\u1ed9i t\u1ef1 nhi\u00ean thay v\u00ec l\u00e0m ngu\u1ed9i \u0111\u1ed9t ng\u1ed9t b\u1eb1ng n\u01b0\u1edbc, b\u1edfi s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 qu\u00e1 nhanh c\u00f3 th\u1ec3 g\u00e2y n\u1ee9t m\u1ed1i h\u00e0n ho\u1eb7c t\u1ea1o \u1ee9ng su\u1ea5t b\u00ean trong v\u1eadt li\u1ec7u.<\/p>\n<hr data-start=\"7646\" data-end=\"7649\" \/>\n<h3 data-section-id=\"53t4dw\" data-start=\"7651\" data-end=\"7721\"><span class=\"ez-toc-section\" id=\"35_Cong_tac_kiem_tra_moi_han_thu_kin_va_nghiem_thu_sau_thi_cong\"><\/span><strong>3.5. C\u00f4ng t\u00e1c ki\u1ec3m tra m\u1ed1i h\u00e0n, th\u1eed k\u00edn v\u00e0 nghi\u1ec7m thu sau thi c\u00f4ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p data-start=\"7723\" data-end=\"8069\">Sau khi ho\u00e0n th\u00e0nh to\u00e0n b\u1ed9 c\u00f4ng t\u00e1c h\u00e0n \u1ed1ng \u0111\u1ed3ng, \u0111\u1ed9i thi c\u00f4ng c\u1ea7n ti\u1ebfn h\u00e0nh ki\u1ec3m tra v\u00e0 nghi\u1ec7m thu k\u1ef9 l\u01b0\u1ee1ng nh\u1eb1m \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng \u0111\u1ea1t \u0111\u1ea7y \u0111\u1ee7 y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt tr\u01b0\u1edbc khi \u0111\u01b0a v\u00e0o v\u1eadn h\u00e0nh. \u0110\u00e2y l\u00e0 giai \u0111o\u1ea1n \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng v\u00ec ch\u1ea5t l\u01b0\u1ee3ng c\u1ee7a t\u1eebng m\u1ed1i h\u00e0n s\u1ebd \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh, hi\u1ec7u su\u1ea5t l\u00e0m l\u1ea1nh v\u00e0 tu\u1ed5i th\u1ecd c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/p>\n<p data-start=\"8071\" data-end=\"8381\">Tr\u01b0\u1edbc ti\u00ean, c\u00e1c m\u1ed1i h\u00e0n c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra tr\u1ef1c quan b\u1eb1ng m\u1eaft th\u01b0\u1eddng \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u01b0 r\u1ed7 kh\u00ed, n\u1ee9t ch\u00e2n h\u00e0n, thi\u1ebfu v\u1eadt li\u1ec7u h\u00e0n, ch\u00e1y b\u1ec1 m\u1eb7t ho\u1eb7c hi\u1ec7n t\u01b0\u1ee3ng kim lo\u1ea1i ph\u00e2n b\u1ed1 kh\u00f4ng \u0111\u1ec1u. M\u1ed1i h\u00e0n \u0111\u1ea1t y\u00eau c\u1ea7u ph\u1ea3i c\u00f3 b\u1ec1 m\u1eb7t s\u00e1ng \u0111\u1ec1u, li\u00ean k\u1ebft k\u00edn quanh chu vi v\u00e0 kh\u00f4ng xu\u1ea5t hi\u1ec7n d\u1ea5u hi\u1ec7u b\u1ea5t th\u01b0\u1eddng.<\/p>\n<p data-start=\"8383\" data-end=\"8711\">Sau b\u01b0\u1edbc ki\u1ec3m tra ngo\u1ea1i quan, h\u1ec7 th\u1ed1ng s\u1ebd \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh th\u1eed k\u00edn b\u1eb1ng kh\u00ed Nit\u01a1 \u1edf \u00e1p su\u1ea5t theo \u0111\u00fang ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt ho\u1eb7c y\u00eau c\u1ea7u c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb. Trong qu\u00e1 tr\u00ecnh th\u1eed \u00e1p, k\u1ef9 thu\u1eadt vi\u00ean c\u1ea7n theo d\u00f5i s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a \u0111\u1ed3ng h\u1ed3 \u00e1p su\u1ea5t trong th\u1eddi gian quy \u0111\u1ecbnh nh\u1eb1m \u0111\u00e1nh gi\u00e1 kh\u1ea3 n\u0103ng gi\u1eef k\u00edn c\u1ee7a to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng.<\/p>\n<p data-start=\"8713\" data-end=\"9003\">\u0110\u1ec3 ki\u1ec3m tra ch\u00ednh x\u00e1c v\u1ecb tr\u00ed r\u00f2 r\u1ec9, dung d\u1ecbch x\u00e0 ph\u00f2ng ho\u1eb7c thi\u1ebft b\u1ecb d\u00f2 r\u00f2 gas chuy\u00ean d\u1ee5ng s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1ea1i t\u1ea5t c\u1ea3 c\u00e1c m\u1ed1i n\u1ed1i v\u00e0 ph\u1ee5 ki\u1ec7n. N\u1ebfu ph\u00e1t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng x\u00ec kh\u00ed ho\u1eb7c xu\u1ea5t hi\u1ec7n bong b\u00f3ng kh\u00ed, v\u1ecb tr\u00ed l\u1ed7i c\u1ea7n \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u00e0 h\u00e0n l\u1ea1i ho\u00e0n to\u00e0n tr\u01b0\u1edbc khi ti\u1ebfn h\u00e0nh th\u1eed \u00e1p l\u1ea1i t\u1eeb \u0111\u1ea7u.<\/p>\n<p data-start=\"9005\" data-end=\"9319\">Sau khi h\u1ec7 th\u1ed1ng \u0111\u1ea1t y\u00eau c\u1ea7u th\u1eed k\u00edn, c\u00f4ng t\u00e1c h\u00fat ch\u00e2n kh\u00f4ng s\u1ebd \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nh\u1eb1m lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n h\u01a1i \u1ea9m v\u00e0 kh\u00f4ng kh\u00ed c\u00f2n t\u1ed3n t\u1ea1i b\u00ean trong \u0111\u01b0\u1eddng \u1ed1ng tr\u01b0\u1edbc khi n\u1ea1p m\u00f4i ch\u1ea5t l\u1ea1nh. \u0110\u00e2y l\u00e0 b\u01b0\u1edbc quan tr\u1ecdng gi\u00fap b\u1ea3o v\u1ec7 m\u00e1y n\u00e9n, tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00f3ng b\u0103ng ho\u1eb7c t\u1ea1o axit trong d\u1ea7u l\u1ea1nh khi h\u1ec7 th\u1ed1ng v\u1eadn h\u00e0nh l\u00e2u d\u00e0i.<\/p>\n<p data-start=\"9321\" data-end=\"9536\" data-is-last-node=\"\" data-is-only-node=\"\">Cu\u1ed1i c\u00f9ng, to\u00e0n b\u1ed9 h\u1ed3 s\u01a1 nghi\u1ec7m thu bao g\u1ed3m bi\u00ean b\u1ea3n th\u1eed \u00e1p, nh\u1eadt k\u00fd thi c\u00f4ng, k\u1ebft qu\u1ea3 ki\u1ec3m tra k\u1ef9 thu\u1eadt v\u00e0 h\u00ecnh \u1ea3nh hi\u1ec7n tr\u01b0\u1eddng s\u1ebd \u0111\u01b0\u1ee3c l\u1eadp \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 ph\u1ee5c v\u1ee5 c\u00f4ng t\u00e1c b\u00e0n giao, v\u1eadn h\u00e0nh v\u00e0 b\u1ea3o tr\u00ec h\u1ec7 th\u1ed1ng sau n\u00e0y.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<hr data-start=\"6138\" data-end=\"6141\" \/>\n<h2 data-section-id=\"jqszwv\" data-start=\"6143\" data-end=\"6238\"><span class=\"ez-toc-section\" id=\"4_Cac_loi_pho_bien_trong_thi_cong_han_ong_dong_va_hau_qua_nghiem_trong_doi_voi_he_thong\"><\/span><span role=\"text\"><strong data-start=\"6146\" data-end=\"6238\">4. C\u00e1c l\u1ed7i ph\u1ed5 bi\u1ebfn trong thi c\u00f4ng h\u00e0n \u1ed1ng \u0111\u1ed3ng v\u00e0 h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng \u0111\u1ed1i v\u1edbi h\u1ec7 th\u1ed1ng<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"6240\" data-end=\"6553\">Trong th\u1ef1c t\u1ebf thi c\u00f4ng, m\u1ed9t s\u1ed1 l\u1ed7i ph\u1ed5 bi\u1ebfn nh\u01b0 kh\u00f4ng th\u1ed5i kh\u00ed Nit\u01a1 trong qu\u00e1 tr\u00ecnh h\u00e0n, kh\u00f4ng l\u00e0m s\u1ea1ch b\u1ec1 m\u1eb7t \u1ed1ng tr\u01b0\u1edbc khi h\u00e0n, ho\u1eb7c ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 kh\u00f4ng ph\u00f9 h\u1ee3p \u0111\u1ec1u c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 nghi\u00eam tr\u1ecdng nh\u01b0 t\u1eafc ngh\u1ebdn h\u1ec7 th\u1ed1ng, r\u00f2 r\u1ec9 m\u00f4i ch\u1ea5t l\u1ea1nh, gi\u1ea3m hi\u1ec7u su\u1ea5t l\u00e0m l\u1ea1nh v\u00e0 th\u1eadm ch\u00ed g\u00e2y h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb.<\/p>\n<p data-start=\"6555\" data-end=\"6695\">Nh\u1eefng l\u1ed7i n\u00e0y kh\u00f4ng ch\u1ec9 l\u00e0m t\u0103ng chi ph\u00ed b\u1ea3o tr\u00ec m\u00e0 c\u00f2n \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn uy t\u00edn c\u1ee7a nh\u00e0 th\u1ea7u thi c\u00f4ng trong c\u00e1c d\u1ef1 \u00e1n MEP quy m\u00f4 l\u1edbn.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-917\" src=\"https:\/\/trieuminh.com\/wp-content\/uploads\/2026\/03\/HAN-ONG-DONG.jpg\" alt=\"\" width=\"857\" height=\"571\" srcset=\"https:\/\/trieuminh.com\/wp-content\/uploads\/2026\/03\/HAN-ONG-DONG.jpg 1024w, https:\/\/trieuminh.com\/wp-content\/uploads\/2026\/03\/HAN-ONG-DONG-768x512.jpg 768w\" sizes=\"auto, (max-width: 857px) 100vw, 857px\" \/><\/p>\n<hr data-start=\"6697\" data-end=\"6700\" \/>\n<h2 data-section-id=\"1uqjnt9\" data-start=\"6702\" data-end=\"6813\"><span class=\"ez-toc-section\" id=\"5_Ket_luan_Tam_quan_trong_cua_bien_phap_thi_cong_han_ong_dong_trong_viec_dam_bao_chat_luong_cong_trinh\"><\/span><span role=\"text\"><strong data-start=\"6705\" data-end=\"6813\">5. K\u1ebft lu\u1eadn: T\u1ea7m quan tr\u1ecdng c\u1ee7a bi\u1ec7n ph\u00e1p thi c\u00f4ng h\u00e0n \u1ed1ng \u0111\u1ed3ng trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng c\u00f4ng tr\u00ecnh<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"6815\" data-end=\"7106\">C\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng, vi\u1ec7c \u00e1p d\u1ee5ng \u0111\u00fang bi\u1ec7n ph\u00e1p thi c\u00f4ng h\u00e0n \u1ed1ng \u0111\u1ed3ng theo ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt kh\u00f4ng ch\u1ec9 gi\u00fap \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 k\u00edn, \u0111\u1ed9 b\u1ec1n v\u00e0 hi\u1ec7u su\u1ea5t v\u1eadn h\u00e0nh c\u1ee7a h\u1ec7 th\u1ed1ng m\u00e0 c\u00f2n g\u00f3p ph\u1ea7n k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd thi\u1ebft b\u1ecb, gi\u1ea3m thi\u1ec3u r\u1ee7i ro s\u1ef1 c\u1ed1 v\u00e0 t\u1ed1i \u01b0u chi ph\u00ed v\u1eadn h\u00e0nh trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u00f4ng tr\u00ecnh.<\/p>\n<p data-start=\"7108\" data-end=\"7331\">Do \u0111\u00f3, c\u00e1c \u0111\u01a1n v\u1ecb thi c\u00f4ng c\u1ea7n \u0111\u1eb7c bi\u1ec7t ch\u00fa tr\u1ecdng \u0111\u1ebfn vi\u1ec7c \u0111\u00e0o t\u1ea1o tay ngh\u1ec1 th\u1ee3, ki\u1ec3m so\u00e1t quy tr\u00ecnh thi c\u00f4ng v\u00e0 tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t c\u00e1c ti\u00eau chu\u1ea9n k\u1ef9 thu\u1eadt nh\u1eb1m \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng cao nh\u1ea5t cho t\u1eebng m\u1ed1i h\u00e0n trong h\u1ec7 th\u1ed1ng.<\/p>\n<h2 data-section-id=\"1uqjnt9\" data-start=\"6702\" data-end=\"6813\"><span class=\"ez-toc-section\" id=\"6_FILE_BIEN_PHAP_THI_CONG_MAU\"><\/span><span role=\"text\"><strong data-start=\"6705\" data-end=\"6813\">6. FILE BI\u1ec6N PH\u00c1P THI C\u00d4NG M\u1eaaU:<\/strong><\/span><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p data-start=\"12403\" data-end=\"12463\"><strong data-start=\"12403\" data-end=\"12461\">LINK T\u1ea2I BI\u1ec6N PH\u00c1P THI C\u00d4NG H\u00c0N \u1ed0NG \u0110\u1ed2NG FILE WORD:<\/strong><\/p>\n<h4 data-start=\"321\" data-end=\"462\"><span class=\"ez-toc-section\" id=\"BIEN_PHAP_THI_CONG_HAN_ONG_DONG-2\"><\/span><div style=\"margin:8px 0;\">\n            <a href=\"#\" class=\"dl-item\"\n               data-link=\"https:\/\/trieuminh.com\/wp-content\/uploads\/2026\/03\/BPTCong-han-ong-dong.doc\"\n               data-time=\"45\"\n               data-text=\"BI\u1ec6N PH\u00c1P THI C\u00d4NG H\u00c0N \u1ed0NG \u0110\u1ed2NG\"\n               style=\"color:#007bff;font-weight:bold;text-transform:uppercase;text-decoration:none;\">\n               BI\u1ec6N PH\u00c1P THI C\u00d4NG H\u00c0N \u1ed0NG \u0110\u1ed2NG\n            <\/a>\n        <\/div><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<h3><span class=\"ez-toc-section\" id=\"XEM_THEM_CAC_BIEN_PHAP_THI_CONG_DIEU_HOA_KHONG_KHI_VA_THONG_GIO_KHAC\"><\/span>XEM TH\u00caM C\u00c1C BI\u1ec6N PH\u00c1P THI C\u00d4NG \u0110I\u1ec0U H\u00d2A KH\u00d4NG KH\u00cd V\u00c0 TH\u00d4NG GI\u00d3 KH\u00c1C:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h3><span class=\"ez-toc-section\" id=\"THI_CONG_HE_THONG_DIEU_HOA_KHONG_KHI_VA_THONG_GIO\"><\/span><a href=\"https:\/\/trieuminh.com\/thi-cong-he-thong-dieu-hoa-khong-khi-va-thong-gio\/\">THI C\u00d4NG H\u1ec6 TH\u1ed0NG \u0110I\u1ec0U HO\u00c0 KH\u00d4NG KH\u00cd V\u00c0 TH\u00d4NG GI\u00d3<\/a><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<h1 data-section-id=\"1m9w8px\" data-start=\"7620\" data-end=\"7633\"><span class=\"ez-toc-section\" id=\"7_Lien_He\"><\/span>7. Li\u00ean H\u1ec7<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>N\u1ebfu b\u1ea1n c\u00f3 nhu c\u1ea7u v\u1ec1 thi\u1ebft k\u1ebf, thi c\u00f4ng h\u1ec7 th\u1ed1ng \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed v\u00e0 th\u00f4ng gi\u00f3\u00a0 vui l\u00f2ng li\u00ean h\u1ec7 th\u00f4ng tin b\u00ean d\u01b0\u1edbi<\/p>\n<p style=\"text-align: left;\"><strong>C\u00d4NG TY TNHH K\u1ef8 THU\u1eacT C\u00d4NG NGH\u1ec6 TRI\u1ec0U MINH<\/strong><\/p>\n<p style=\"text-align: left;\"><strong>\u0110\u1ecaA CH\u1ec8: 109 NGUY\u1ec4N TH\u1eca NHUNG. P. HI\u1ec6P B\u00ccNH, TP. H\u1ed2 CH\u00cd MINH<\/strong><\/p>\n<p style=\"text-align: left;\"><strong>MAIL: TRIEUMINH@TRIEUMINH.COM<\/strong><\/p>\n<p style=\"text-align: left;\"><strong>WEB:\u00a0<a href=\"http:\/\/Trieuminh.com\" target=\"_blank\" rel=\"noopener\">http:\/\/Trieuminh.com<\/a><\/strong><\/p>\n<p style=\"text-align: left;\"><strong>\u0110I\u1ec6N THO\u1ea0I (ZALO): 0976.422.223<\/strong><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Xem_them\"><\/span>Xem th\u00eam<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><a href=\"https:\/\/trieuminh.com\/thi-cong-he-thong-dieu-hoa-khong-khi-va-thong-gio\/\">THI C\u00d4NG H\u1ec6 TH\u1ed0NG \u0110I\u1ec0U H\u00d2A KH\u00d4NG KH\u00cd V\u00c0 TH\u00d4NG GI\u00d3<\/a><\/p>\n<p><a href=\"https:\/\/trieuminh.com\/lap-dat-he-thong-may-lanh-vrv-vrf\/\">L\u1eaeP \u0110\u1eb6T H\u1ec6 TH\u1ed0NG M\u00c1Y L\u1ea0NH VRV, VRF<\/a><\/p>\n<p><a href=\"https:\/\/trieuminh.com\/quy-trinh-thi-cong-he-thong-thong-gio-nha-xuong\/\" target=\"_blank\" rel=\"noopener\">QUY TR\u00ccNH THI C\u00d4NG H\u1ec6 TH\u1ed0NG TH\u00d4NG GI\u00d3 NH\u00c0 X\u01af\u1edeNG<\/a><\/p>\n<p><a href=\"https:\/\/trieuminh.com\/thiet-ke-he-thong-hut-khoi-hanh-lang\/\">THI\u1ebeT K\u1ebe H\u1ec6 TH\u1ed0NG H\u00daT KH\u00d3I H\u00c0NH LANG<\/a><\/p>\n<p><a href=\"https:\/\/trieuminh.com\/gia-thi-cong-lap-dat-ong-gio-2026\/\">GI\u00c1 THI C\u00d4NG L\u1eaeP \u0110\u1eb6T \u1ed0NG GI\u00d3 2026<\/a><\/p>\n<p><a href=\"https:\/\/trieuminh.com\/huong-dan-thiet-ke-he-thong-vrv-vrf\/\">H\u01af\u1edaNG D\u1eaaN THI\u1ebeT K\u1ebe H\u1ec6 TH\u1ed0NG VRV, VRF<\/a><\/p>\n<p><a title=\"Fanpage Tri\u1ec1u Minh\" href=\"https:\/\/www.facebook.com\/profile.php?id=61586129903680\" target=\"_blank\" rel=\"noopener\">FANPAGE TRI\u1ec0U MINH<\/a><\/p>\n<div class=\"blog-share text-center\"><\/div>\n<\/p>","protected":false},"excerpt":{"rendered":"<p>BI\u1ec6N PH\u00c1P THI C\u00d4NG H\u00c0N \u1ed0NG \u0110\u1ed2NG TRONG H\u1ec6 TH\u1ed0NG HVAC 1. T\u1ed5ng quan v\u1ec1 bi\u1ec7n ph\u00e1p thi c\u00f4ng h\u00e0n \u1ed1ng \u0111\u1ed3ng trong h\u1ec7 th\u1ed1ng c\u01a1 \u0111i\u1ec7n (MEP) Trong c\u00e1c h\u1ec7 th\u1ed1ng c\u01a1 \u0111i\u1ec7n c\u00f4ng tr\u00ecnh hi\u1ec7n \u0111\u1ea1i, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed trung t\u00e2m, h\u1ec7 th\u1ed1ng chiller, h\u1ec7 th\u1ed1ng<\/p>","protected":false},"author":1,"featured_media":921,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[1100,1101,38,110,56,1103,41,111,42,1102,39],"class_list":["post-913","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tai-lieu","tag-bien-phap-han-ong-dong","tag-bien-phap-thi-cong-ong-dong","tag-dieu-hoa-khong-khi","tag-han-ong-dong","tag-hvac","tag-lap-dat-ong-dong","tag-may-lanh","tag-may-lanh-trung-tam","tag-ong-gio","tag-thi-cong-ong-dong","tag-thong-gio"],"_links":{"self":[{"href":"https:\/\/trieuminh.com\/en\/wp-json\/wp\/v2\/posts\/913","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/trieuminh.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/trieuminh.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/trieuminh.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/trieuminh.com\/en\/wp-json\/wp\/v2\/comments?post=913"}],"version-history":[{"count":10,"href":"https:\/\/trieuminh.com\/en\/wp-json\/wp\/v2\/posts\/913\/revisions"}],"predecessor-version":[{"id":2856,"href":"https:\/\/trieuminh.com\/en\/wp-json\/wp\/v2\/posts\/913\/revisions\/2856"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/trieuminh.com\/en\/wp-json\/wp\/v2\/media\/921"}],"wp:attachment":[{"href":"https:\/\/trieuminh.com\/en\/wp-json\/wp\/v2\/media?parent=913"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/trieuminh.com\/en\/wp-json\/wp\/v2\/categories?post=913"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/trieuminh.com\/en\/wp-json\/wp\/v2\/tags?post=913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}