{"id":688676,"date":"2024-09-01T23:45:27","date_gmt":"2024-09-01T22:45:27","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=688676"},"modified":"2024-09-01T23:45:27","modified_gmt":"2024-09-01T22:45:27","slug":"chat-chong-dong-ha-diem-dong-va-an-toan-dong-co","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/chat-chong-dong-ha-diem-dong-va-an-toan-dong-co\/","title":{"rendered":"Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng: H\u1ea1 \u0110i\u1ec3m \u0110\u00f4ng v\u00e0 An To\u00e0n \u0110\u1ed9ng C\u01a1"},"content":{"rendered":"<p class=\"sidekick\">Ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng: H\u1ea1 \u0111i\u1ec3m \u0111\u00f3ng b\u0103ng c\u1ee7a ch\u1ea5t l\u1ecfng l\u00e0m m\u00e1t, b\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1 kh\u1ecfi \u0111\u00f3ng b\u0103ng, oxi h\u00f3a v\u00e0 h\u01b0 h\u1ecfng, \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.<\/p>\n<p><img src=\"https:\/\/www.thermal-engineering.org\/wp-content\/uploads\/2024\/07\/chat_chong_dong_ha_diem_dong_va_an_toan_dong_co.png\" alt=\"Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng: H\u1ea1 \u0110i\u1ec3m \u0110\u00f4ng v\u00e0 An To\u00e0n \u0110\u1ed9ng C\u01a1\" style=\"display: block; margin-left: auto; margin-right: auto;\"\/><\/p>\n<h2>Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng: H\u1ea1 \u0110i\u1ec3m \u0110\u00f4ng v\u00e0 An To\u00e0n \u0110\u1ed9ng C\u01a1<\/h2>\n<p>\nTrong ng\u00e0nh c\u01a1 kh\u00ed nhi\u1ec7t (thermal engineering), ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng (antifreeze) l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n quan tr\u1ecdng gi\u00fap b\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1 kh\u1ecfi h\u01b0 h\u1ecfng do nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. \u0110\u00e2y l\u00e0 m\u1ed9t ch\u1ea5t l\u1ecfng chuy\u00ean d\u1ee5ng \u0111\u01b0\u1ee3c pha ch\u1ebf \u0111\u1ec3 h\u1ea1 \u0111i\u1ec3m \u0111\u00f4ng c\u1ee7a n\u01b0\u1edbc trong h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t \u0111\u1ed9ng c\u01a1, qua \u0111\u00f3 ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng n\u01b0\u1edbc \u0111\u00f3ng b\u0103ng v\u00e0 g\u00e2y h\u01b0 h\u1ecfng cho \u0111\u1ed9ng c\u01a1.\n<\/p>\n<h2>Ch\u1ee9c N\u0103ng C\u01a1 B\u1ea3n C\u1ee7a Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng<\/h2>\n<p>Ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng c\u00f3 hai ch\u1ee9c n\u0103ng ch\u00ednh:<\/p>\n<p><u1><\/p>\n<li><strong>H\u1ea1 \u0110i\u1ec3m \u0110\u00f4ng:<\/strong> Ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng gi\u00fap h\u1ea1 \u0111i\u1ec3m \u0111\u00f4ng c\u1ee7a n\u01b0\u1edbc, t\u1eeb \u0111\u00f3 ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng n\u01b0\u1edbc \u0111\u00f3ng b\u0103ng trong \u0111\u1ed9ng c\u01a1. \u0110i\u1ec3m \u0111\u00f4ng c\u1ee7a n\u01b0\u1edbc l\u00e0 0\u00b0C, nh\u01b0ng khi pha ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng, \u0111i\u1ec3m n\u00e0y c\u00f3 th\u1ec3 gi\u1ea3m xu\u1ed1ng -40\u00b0C ho\u1eb7c th\u1ea5p h\u01a1n.<\/li>\n<li><strong>B\u1ea3o V\u1ec7 \u0110\u1ed9ng C\u01a1:<\/strong> Ngo\u00e0i vi\u1ec7c h\u1ea1 \u0111i\u1ec3m \u0111\u00f4ng, ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng c\u00f2n gi\u00fap b\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1 kh\u1ecfi b\u1ecb \u0103n m\u00f2n, ch\u1ed1ng l\u1ea1i s\u1ef1 h\u00ecnh th\u00e0nh c\u1eb7n b\u1ea9n v\u00e0 \u0111\u1ea3m b\u1ea3o s\u1ef1 b\u00f4i tr\u01a1n cho c\u00e1c b\u1ed9 ph\u1eadn di chuy\u1ec3n trong h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t.<\/li>\n<p><\/u1><\/p>\n<h2>Th\u00e0nh Ph\u1ea7n Ch\u00ednh C\u1ee7a Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng<\/h2>\n<p>Ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng th\u01b0\u1eddng ch\u1ee9a m\u1ed9t s\u1ed1 th\u00e0nh ph\u1ea7n ch\u00ednh nh\u01b0:<\/p>\n<p><u1><\/p>\n<li><strong>Ethylene glycol (C<sub>2<\/sub>H<sub>6<\/sub>O<sub>2<\/sub>):<\/strong> \u0110\u00e2y l\u00e0 ch\u1ea5t l\u1ecfng kh\u00f4ng m\u00e0u, kh\u00f4ng m\u00f9i v\u00e0 c\u00f3 t\u00e1c d\u1ee5ng h\u1ea1 \u0111i\u1ec3m \u0111\u00f4ng r\u1ea5t hi\u1ec7u qu\u1ea3. Ethylene glycol c\u0169ng c\u00f3 kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t t\u1ed1t, gi\u00fap duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh trong \u0111\u1ed9ng c\u01a1.<\/li>\n<li><strong>Propylene glycol (C<sub>3<\/sub>H<sub>8<\/sub>O<sub>2<\/sub>):<\/strong> Lo\u1ea1i glycol n\u00e0y an to\u00e0n h\u01a1n ethylene glycol v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng c\u1ea7n ti\u00eau chu\u1ea9n an to\u00e0n cao h\u01a1n, nh\u01b0 trong ng\u00e0nh th\u1ef1c ph\u1ea9m hay trong \u0111\u1ed9ng c\u01a1 \u1edf khu v\u1ef1c d\u00e2n c\u01b0.<\/li>\n<li><strong>Ch\u1ea5t Ph\u1ee5 Gia:<\/strong> C\u00e1c ch\u1ea5t ph\u1ee5 gia ch\u1ed1ng \u0103n m\u00f2n, ch\u1ea5t b\u00f4i tr\u01a1n v\u00e0 ch\u1ea5t ch\u1ed1ng c\u1eb7n canxi c\u0169ng \u0111\u01b0\u1ee3c th\u00eam v\u00e0o \u0111\u1ec3 t\u1ed1i \u01b0u ho\u00e1 hi\u1ec7u su\u1ea5t c\u1ee7a ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng.<\/li>\n<p><\/u1><\/p>\n<h2>Nguy\u00ean L\u00fd Ho\u1ea1t \u0110\u1ed9ng<\/h2>\n<p>Ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd l\u00e0m gi\u1ea3m nhi\u1ec7t \u0111\u1ed9 \u0111\u00f4ng c\u1ee7a n\u01b0\u1edbc th\u00f4ng qua vi\u1ec7c thay \u0111\u1ed5i c\u1ea5u tr\u00fac ph\u00e2n t\u1eed c\u1ee7a n\u01b0\u1edbc. Khi n\u01b0\u1edbc \u0111\u01b0\u1ee3c pha th\u00eam ethylene glycol ho\u1eb7c propylene glycol, c\u00e1c ph\u00e2n t\u1eed c\u1ee7a ch\u00fang xen v\u00e0o gi\u1eefa c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc, ng\u0103n c\u1ea3n s\u1ef1 h\u00ecnh th\u00e0nh c\u1ee7a m\u1ea1ng l\u01b0\u1edbi tinh th\u1ec3 n\u01b0\u1edbc (b\u0103ng). C\u00f4ng th\u1ee9c ho\u00e1 h\u1ecdc \u0111\u01a1n gi\u1ea3n bi\u1ec3u th\u1ecb s\u1ef1 pha ch\u1ebf n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c vi\u1ebft nh\u01b0 sau:<\/p>\n<p>\nMixture = Kao hoang n\u01b0\u1edbc + Ethylene Glycol\n<\/p>\n<h2>T\u1ea7m Quan Tr\u1ecdng C\u1ee7a Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng \u0110\u1ed1i V\u1edbi \u0110\u1ed9ng C\u01a1<\/h2>\n<p>\nS\u1eed d\u1ee5ng ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng kh\u00f4ng ch\u1ec9 nh\u1eb1m m\u1ee5c \u0111\u00edch tr\u00e1nh cho n\u01b0\u1edbc kh\u00f4ng b\u1ecb \u0111\u00f3ng b\u0103ng. N\u1ebfu n\u01b0\u1edbc trong h\u1ec7 th\u1ed1ng l\u00e0m m\u00e1t \u0111\u1ed9ng c\u01a1 \u0111\u00f3ng b\u0103ng, n\u00f3 c\u00f3 th\u1ec3 g\u00e2y ra l\u1ef1c n\u1edf \u0111\u1ee7 l\u1edbn \u0111\u1ec3 ph\u00e1 h\u1ee7y c\u00e1c \u1ed1ng d\u1eabn n\u01b0\u1edbc, van v\u00e0 th\u1eadm ch\u00ed l\u00e0 to\u00e0n b\u1ed9 \u0111\u1ed9ng c\u01a1. Ngo\u00e0i ra, khi nhi\u1ec7t \u0111\u1ed9 t\u0103ng qu\u00e1 cao, ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng gi\u00fap duy tr\u00ec nhi\u1ec7t \u0111\u1ed9 v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh, ng\u0103n ng\u1eeba s\u1ef1 qu\u00e1 nhi\u1ec7t v\u00e0 gi\u1ea3m thi\u1ec3u hao m\u00f2n.\n<\/p>\n<h2>K\u1ebft Lu\u1eadn<\/h2>\n<p>\nCh\u1ea5t ch\u1ed1ng \u0111\u00f4ng \u0111\u00f3ng vai tr\u00f2 v\u00f4 c\u00f9ng thi\u1ebft y\u1ebfu trong vi\u1ec7c b\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1 kh\u1ecfi h\u01b0 h\u1ecfng do nhi\u1ec7t \u0111\u1ed9 qu\u00e1 th\u1ea5p ho\u1eb7c qu\u00e1 cao. V\u1edbi c\u00e1c \u0111\u1eb7c t\u00ednh \u0111\u1eb7c bi\u1ec7t nh\u01b0 h\u1ea1 \u0111i\u1ec3m \u0111\u00f4ng, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t \u0111\u1ed9, ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng kh\u00f4ng ch\u1ec9 gi\u00fap \u0111\u1ed9ng c\u01a1 ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u00e0 hi\u1ec7u qu\u1ea3 m\u00e0 c\u00f2n k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn li\u00ean quan.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng: H\u1ea1 \u0111i\u1ec3m \u0111\u00f3ng b\u0103ng c\u1ee7a ch\u1ea5t l\u1ecfng l\u00e0m m\u00e1t, b\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1 kh\u1ecfi \u0111\u00f3ng b\u0103ng, oxi h\u00f3a v\u00e0 h\u01b0 h\u1ecfng, \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng: H\u1ea1 \u0110i\u1ec3m \u0110\u00f4ng v\u00e0 An To\u00e0n \u0110\u1ed9ng C\u01a1<\/title>\n<meta name=\"description\" content=\"Ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng: H\u1ea1 \u0111i\u1ec3m \u0111\u00f3ng b\u0103ng c\u1ee7a ch\u1ea5t l\u1ecfng l\u00e0m m\u00e1t, b\u1ea3o v\u1ec7 \u0111\u1ed9ng c\u01a1 kh\u1ecfi \u0111\u00f3ng b\u0103ng, oxi h\u00f3a v\u00e0 h\u01b0 h\u1ecfng, \u0111\u1ea3m b\u1ea3o an to\u00e0n v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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