{"id":686815,"date":"2024-10-29T14:17:31","date_gmt":"2024-10-29T13:17:31","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=686815"},"modified":"2024-10-29T14:17:31","modified_gmt":"2024-10-29T13:17:31","slug":"glycol-tinh-chat-chong-dong-va-ung-dung-trong-he-thong-hvac","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/glycol-tinh-chat-chong-dong-va-ung-dung-trong-he-thong-hvac\/","title":{"rendered":"Glycol | T\u00ednh Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng v\u00e0 \u1ee8ng D\u1ee5ng trong H\u1ec7 Th\u1ed1ng HVAC"},"content":{"rendered":"

Glycol | T\u00ednh Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng v\u00e0 \u1ee8ng D\u1ee5ng trong H\u1ec7 Th\u1ed1ng HVAC: T\u00ecm hi\u1ec3u v\u1ec1 c\u00e1ch glycol ho\u1ea1t \u0111\u1ed9ng ch\u1ed1ng \u0111\u00f4ng v\u00e0 vai tr\u00f2 quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng s\u01b0\u1edfi v\u00e0 l\u00e0m m\u00e1t.<\/p>\n

\"Glycol<\/p>\n

Glycol | T\u00ednh Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng v\u00e0 \u1ee8ng D\u1ee5ng trong H\u1ec7 Th\u1ed1ng HVAC<\/h2>\n

Trong l\u0129nh v\u1ef1c k\u1ef9 thu\u1eadt nhi\u1ec7t, glycol l\u00e0 m\u1ed9t ch\u1ea5t l\u1ecfng ch\u1ed1ng \u0111\u00f4ng quan tr\u1ecdng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c h\u1ec7 th\u1ed1ng s\u01b0\u1edfi, l\u00e0m m\u00e1t v\u00e0 \u0111i\u1ec1u ho\u00e0 kh\u00f4ng kh\u00ed (HVAC). B\u00e0i vi\u1ebft n\u00e0y s\u1ebd \u0111i s\u00e2u v\u00e0o khi l\u00fd t\u00ednh ch\u1ed1ng \u0111\u00f4ng c\u1ee7a glycol v\u00e0 c\u00e1ch n\u00f3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong c\u00e1c h\u1ec7 th\u1ed1ng HVAC.<\/p>\n

T\u00ednh Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng c\u1ee7a Glycol<\/h2>\n

Glycol l\u00e0 m\u1ed9t h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi t\u00ean g\u1ecdi \u0111\u1ea7y \u0111\u1ee7 l\u00e0 ethylene glycol (EG) ho\u1eb7c propylene glycol (PG). C\u00e1c lo\u1ea1i glycol n\u00e0y c\u00f3 hai t\u00ednh ch\u1ea5t quan tr\u1ecdng ch\u00ednh l\u00e0 l\u00e0m h\u1ea1 \u0111i\u1ec3m \u0111\u00f3ng b\u0103ng c\u1ee7a n\u01b0\u1edbc v\u00e0 gi\u1eef nhi\u1ec7t t\u1ed1t. Khi \u0111\u01b0\u1ee3c pha tr\u1ed9n v\u1edbi n\u01b0\u1edbc, glycol l\u00e0m gi\u1ea3m \u0111i\u1ec3m \u0111\u00f3ng b\u0103ng c\u1ee7a dung d\u1ecbch. \u0110i\u1ec1u n\u00e0y l\u00e0m cho glycol tr\u1edf th\u00e0nh s\u1ef1 l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng \u0111\u1ec3 ng\u0103n ng\u1eeba hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00f4ng c\u1ee9ng trong c\u00e1c h\u1ec7 th\u1ed1ng HVAC trong \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft l\u1ea1nh.<\/p>\n

Ph\u01b0\u01a1ng tr\u00ecnh h\u00f3a h\u1ecdc \u0111\u01a1n gi\u1ea3n th\u1ec3 hi\u1ec7n qu\u00e1 tr\u00ecnh n\u00e0y l\u00e0:<\/p>\n

Glycol (t\u1ec9 l\u1ec7 X%) + N\u01b0\u1edbc (t\u1ec9 l\u1ec7 Y%) \u2192 H\u1ed7n h\u1ee3p Glycol-N\u01b0\u1edbc (\u0111i\u1ec3m \u0111\u00f3ng b\u0103ng th\u1ea5p h\u01a1n so v\u1edbi n\u01b0\u1edbc)<\/p><\/blockquote>\n

\u1ee8ng D\u1ee5ng c\u1ee7a Glycol trong H\u1ec7 Th\u1ed1ng HVAC<\/h2>\n
    \n
  1. Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng:<\/b> Glycol th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng trong c\u00e1c h\u1ec7 th\u1ed1ng s\u01b0\u1edfi, l\u00e0m m\u00e1t v\u00e0 \u0111i\u1ec1u ho\u00e0 kh\u00f4ng kh\u00ed \u0111\u1ec3 ng\u0103n ng\u1eeba n\u01b0\u1edbc trong h\u1ec7 th\u1ed1ng \u0111\u00f3ng b\u0103ng. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng \u1edf nh\u1eefng v\u00f9ng c\u00f3 kh\u00ed h\u1eadu l\u1ea1nh, n\u01a1i m\u00e0 nguy c\u01a1 \u0111\u00f4ng c\u1ee9ng c\u1ee7a c\u00e1c ch\u1ea5t l\u1ecfng l\u00e0 r\u1ea5t cao.<\/li>\n
  2. Truy\u1ec1n Nhi\u1ec7t:<\/b> Glycol c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t ch\u1ea5t truy\u1ec1n nhi\u1ec7t hi\u1ec7u qu\u1ea3 v\u00ec n\u00f3 c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i v\u00e0 l\u01b0u tr\u1eef nhi\u1ec7t t\u1ed1t. Trong c\u00e1c h\u1ec7 th\u1ed1ng HVAC, glycol gi\u00fap duy tr\u00ec s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a nhi\u1ec7t \u0111\u1ed9 v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t truy\u1ec1n nhi\u1ec7t.<\/li>\n
  3. An To\u00e0n v\u00e0 B\u1ea3o Tr\u00ec:<\/b> Propylene glycol c\u00f3 \u0111\u1eb7c t\u00ednh \u00edt \u0111\u1ed9c h\u1ea1i n\u00ean th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0u ti\u00ean s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 an to\u00e0n l\u00e0 m\u1ed1i quan t\u00e2m h\u00e0ng \u0111\u1ea7u. H\u01a1n n\u1eefa, c\u00e1c h\u1ec7 th\u1ed1ng s\u1eed d\u1ee5ng glycol d\u1ec5 b\u1ea3o tr\u00ec v\u00ec glycol c\u00f3 t\u00ednh ch\u1ea5t ch\u1ed1ng \u0103n m\u00f2n, gi\u00fap k\u00e9o d\u00e0i tu\u1ed5i th\u1ecd c\u1ee7a thi\u1ebft b\u1ecb.<\/li>\n<\/ol>\n

    T\u1ef7 L\u1ec7 Pha Tr\u1ed9n Glycol<\/h2>\n

    T\u1ef7 l\u1ec7 pha tr\u1ed9n glycol v\u1edbi n\u01b0\u1edbc th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh d\u1ef1a tr\u00ean \u0111i\u1ec1u ki\u1ec7n nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng v\u00e0 y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng. Th\u00f4ng th\u01b0\u1eddng, t\u1ef7 l\u1ec7 pha tr\u1ed9n dao \u0111\u1ed9ng t\u1eeb 20% \u0111\u1ebfn 50% glycol cho c\u00e1c \u1ee9ng d\u1ee5ng kh\u00e1c nhau.<\/p>\n

    V\u00ed d\u1ee5, trong \u0111i\u1ec1u ki\u1ec7n kh\u00ed h\u1eadu c\u1ef1c k\u1ef3 l\u1ea1nh, t\u1ef7 l\u1ec7 pha tr\u1ed9n glycol c\u00f3 th\u1ec3 l\u00ean t\u1edbi 50% \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng h\u1ed7n h\u1ee3p ch\u1ea5t l\u1ecfng kh\u00f4ng b\u1ecb \u0111\u00f3ng b\u0103ng \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p. C\u00f4ng th\u1ee9c t\u00ednh \u0111\u01a1n gi\u1ea3n cho t\u1ef7 l\u1ec7 ph\u1ea7n tr\u0103m nh\u01b0 sau:<\/p>\n

    T\u1ef7 L\u1ec7 Pha Tr\u1ed9n (%) = (Kh\u1ed1i l\u01b0\u1ee3ng Glycol \/ T\u1ed5ng Kh\u1ed1i l\u01b0\u1ee3ng H\u1ed7n H\u1ee3p) * 100%<\/p><\/blockquote>\n

    K\u1ebft Lu\u1eadn<\/h2>\n

    Glycol l\u00e0 m\u1ed9t th\u00e0nh ph\u1ea7n kh\u00f4ng th\u1ec3 thi\u1ebfu trong c\u00e1c h\u1ec7 th\u1ed1ng HVAC hi\u1ec7n \u0111\u1ea1i, nh\u1edd v\u00e0o t\u00ednh ch\u1ea5t ch\u1ed1ng \u0111\u00f4ng v\u00e0 kh\u1ea3 n\u0103ng truy\u1ec1n nhi\u1ec7t \u01b0u vi\u1ec7t. Vi\u1ec7c s\u1eed d\u1ee5ng glycol kh\u00f4ng ch\u1ec9 gi\u00fap ng\u0103n ng\u1eeba s\u1ef1 \u0111\u00f4ng c\u1ee9ng c\u1ee7a n\u01b0\u1edbc m\u00e0 c\u00f2n c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t s\u1eed d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng c\u1ee7a h\u1ec7 th\u1ed1ng, \u0111\u1ea3m b\u1ea3o ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n trong m\u1ecdi \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Glycol | T\u00ednh Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng v\u00e0 \u1ee8ng D\u1ee5ng trong H\u1ec7 Th\u1ed1ng HVAC: T\u00ecm hi\u1ec3u v\u1ec1 c\u00e1ch glycol ho\u1ea1t \u0111\u1ed9ng ch\u1ed1ng \u0111\u00f4ng v\u00e0 vai tr\u00f2 quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng s\u01b0\u1edfi v\u00e0 l\u00e0m m\u00e1t.<\/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":"\nGlycol | T\u00ednh Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng v\u00e0 \u1ee8ng D\u1ee5ng trong H\u1ec7 Th\u1ed1ng HVAC<\/title>\n<meta name=\"description\" content=\"Glycol | T\u00ednh Ch\u1ea5t Ch\u1ed1ng \u0110\u00f4ng v\u00e0 \u1ee8ng D\u1ee5ng trong H\u1ec7 Th\u1ed1ng HVAC: T\u00ecm hi\u1ec3u v\u1ec1 c\u00e1ch glycol ho\u1ea1t \u0111\u1ed9ng ch\u1ed1ng \u0111\u00f4ng v\u00e0 vai tr\u00f2 quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng s\u01b0\u1edfi v\u00e0 l\u00e0m m\u00e1t.\" 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