{"id":29722,"date":"2025-10-13T02:45:38","date_gmt":"2025-10-13T02:45:38","guid":{"rendered":"https:\/\/stecvina.com\/?post_type=solution&p=29722"},"modified":"2025-12-16T10:55:14","modified_gmt":"2025-12-16T10:55:14","slug":"mot-so-loi-ky-thuat-thuong-gap-khi-thiet-ke-he-thong-chua-chay-khi","status":"publish","type":"solution","link":"https:\/\/stecvina.com\/en\/solution\/common-technical-errors-gas-suppression-design\/","title":{"rendered":"M\u1ed9t s\u1ed1 l\u1ed7i k\u1ef9 thu\u1eadt th\u01b0\u1eddng g\u1eb7p khi thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y kh\u00ed"},"content":{"rendered":"

Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y kh\u00ed<\/strong> ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c c\u00f4ng tr\u00ecnh hi\u1ec7n \u0111\u1ea1i nh\u01b0 trung t\u00e2m d\u1eef li\u1ec7u, ph\u00f2ng \u0111i\u1ec1u khi\u1ec3n, kho l\u01b0u tr\u1eef, tr\u1ea1m \u0111i\u1ec7n, ph\u00f2ng m\u00e1y bi\u1ebfn \u00e1p<\/strong>… Tuy nhi\u00ean, th\u1ef1c t\u1ebf cho th\u1ea5y kh\u00f4ng \u00edt d\u1ef1 \u00e1n thi\u1ebft k\u1ebf v\u00e0 l\u1eafp \u0111\u1eb7t sai k\u1ef9 thu\u1eadt<\/strong>, kh\u00f4ng tu\u00e2n th\u1ee7 TCVN 7161:2024<\/strong>, d\u1eabn \u0111\u1ebfn hi\u1ec7u qu\u1ea3 ch\u1eefa ch\u00e1y th\u1ea5p<\/strong> ho\u1eb7c h\u1ec7 th\u1ed1ng kh\u00f4ng k\u00edch ho\u1ea1t \u0111\u01b0\u1ee3c khi c\u00f3 s\u1ef1 c\u1ed1<\/strong>.<\/p>\n\n\n\n

C\u00f9ng S-TEC VINA<\/strong> \u0111i\u1ec3m l\u1ea1i nh\u1eefng l\u1ed7i k\u1ef9 thu\u1eadt ph\u1ed5 bi\u1ebfn nh\u1ea5t trong qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf, thi c\u00f4ng h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y kh\u00ed v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u qu\u1ea3 v\u00e0 an to\u00e0n tuy\u1ec7t \u0111\u1ed1i<\/strong> cho c\u00f4ng tr\u00ecnh.<\/p>\n\n\n\n

1. X\u00e1c \u0111\u1ecbnh sai c\u00f4ng n\u0103ng ph\u00f2ng v\u00e0 th\u1ec3 t\u00edch khu v\u1ef1c b\u1ea3o v\u1ec7<\/strong><\/h2>\n\n\n\n

Theo TCVN 7161-1:2024 (ISO 14520-1:2015)<\/strong>, m\u1ed7i lo\u1ea1i kh\u00ed nh\u01b0 HFC-227ea, FK-5-1-12, IG-100, IG-541<\/strong> \u0111\u1ec1u c\u00f3 n\u1ed3ng \u0111\u1ed9 d\u1eadp t\u1eaft ch\u00e1y t\u1ed1i thi\u1ec3u<\/strong> v\u00e0 n\u1ed3ng \u0111\u1ed9 thi\u1ebft k\u1ebf<\/strong> ri\u00eang. Vi\u1ec7c x\u00e1c \u0111\u1ecbnh sai c\u00f4ng n\u0103ng c\u1ee7a ph\u00f2ng<\/strong> s\u1ebd d\u1eabn \u0111\u1ebfn vi\u1ec7c ch\u1ecdn sai n\u1ed3ng \u0111\u1ed9 thi\u1ebft k\u1ebf<\/strong> \u2013 khi\u1ebfn hi\u1ec7u qu\u1ea3 d\u1eadp ch\u00e1y kh\u00f4ng \u0111\u1ea1t y\u00eau c\u1ea7u.<\/p>\n\n\n\n

Ngo\u00e0i ra, nhi\u1ec1u thi\u1ebft k\u1ebf t\u00ednh sai th\u1ec3 t\u00edch ph\u00f2ng<\/strong> do b\u1ecf qua c\u00e1c th\u1ec3 t\u00edch chi\u1ebfm ch\u1ed7<\/strong> nh\u01b0 t\u1ee7 rack, tr\u1ea7n gi\u1ea3, s\u00e0n n\u00e2ng, \u1ed1ng c\u00e1p k\u1ef9 thu\u1eadt<\/strong>\u2026 Nh\u1eefng ph\u1ea7n kh\u00f4ng gian n\u00e0y l\u00e0 th\u1ec3 t\u00edch c\u1ed1 \u0111\u1ecbnh kh\u00f4ng th\u1ea5m kh\u00ed<\/strong>, l\u00e0m gi\u1ea3m l\u01b0\u1ee3ng th\u1ec3 t\u00edch th\u1ef1c t\u1ebf c\u1ee7a v\u00f9ng b\u1ea3o v\u1ec7.
K\u1ebft qu\u1ea3 l\u00e0 l\u01b0\u1ee3ng kh\u00ed phun v\u00e0o kh\u00f4ng \u0111\u1ee7 n\u1ed3ng \u0111\u1ed9 c\u1ea7n thi\u1ebft<\/strong>, \u0111\u00e1m ch\u00e1y kh\u00f4ng \u0111\u01b0\u1ee3c d\u1eadp t\u1eaft ho\u00e0n to\u00e0n ho\u1eb7c lan nhanh tr\u1edf l\u1ea1i sau khi phun.<\/p>\n\n\n

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H\u00ecnh \u1ea3nh th\u1ef1c t\u1ebf h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y kh\u00ed SFS 200 t\u1ea1i 1 d\u1ef1 \u00e1n tr\u1ecdng \u0111i\u1ec3m do S-TEC VINA cung c\u1ea5p<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n

2. B\u1ed1 tr\u00ed sai v\u1ecb tr\u00ed v\u00e0 h\u01b0\u1edbng \u0111\u1ea7u phun kh\u00ed<\/strong><\/h2>\n\n\n\n

Kh\u00f4ng gi\u1ed1ng nh\u01b0 \u0111\u1ea7u phun n\u01b0\u1edbc c\u00f3 th\u1ec3 b\u1ed1 tr\u00ed linh ho\u1ea1t, \u0111\u1ea7u phun kh\u00ed (nozzle)<\/strong> ph\u1ea3i \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed theo \u0111\u00fang quy t\u1eafc k\u1ef9 thu\u1eadt<\/strong> \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o l\u01b0u l\u01b0\u1ee3ng v\u00e0 \u00e1p l\u1ef1c kh\u00ed ph\u00e2n b\u1ed1 \u0111\u1ed3ng \u0111\u1ec1u<\/strong> trong to\u00e0n b\u1ed9 kh\u00f4ng gian b\u1ea3o v\u1ec7.<\/p>\n\n\n\n

Do t\u00ednh ch\u1ea5t v\u1eadt l\u00fd c\u1ee7a kh\u00ed (nh\u1eb9, d\u1ec5 khu\u1ebfch t\u00e1n), n\u1ebfu kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c \u0111\u1ea7u phun ho\u1eb7c h\u01b0\u1edbng phun kh\u00f4ng tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n<\/strong>, s\u1ebd xu\u1ea5t hi\u1ec7n c\u00e1c \u201cv\u00f9ng ch\u1ebft<\/strong>\u201d \u2013 n\u01a1i kh\u00ed kh\u00f4ng lan t\u1edbi, khi\u1ebfn ng\u1ecdn l\u1eeda v\u1eabn \u00e2m \u1ec9.
Theo \u0110i\u1ec1u 8.4.2 \u2013 TCVN 7161-1:2024<\/strong>, kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a gi\u1eefa c\u00e1c \u0111\u1ea7u phun v\u00e0 gi\u1eefa \u0111\u1ea7u phun v\u1edbi t\u01b0\u1eddng, tr\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh d\u1ef1a tr\u00ean \u00e1p su\u1ea5t l\u00e0m vi\u1ec7c v\u00e0 \u0111\u1eb7c t\u00ednh kh\u00ed<\/strong>. Vi\u1ec7c phun sai h\u01b0\u1edbng ho\u1eb7c \u0111\u1eb7t l\u1ec7ch v\u1ecb tr\u00ed \u0111\u1ec1u c\u00f3 th\u1ec3 khi\u1ebfn \u00e1p su\u1ea5t x\u1ea3 t\u1ea1i \u0111\u1ea7u phun kh\u00f4ng \u0111\u1ea1t \u00b110% so v\u1edbi thi\u1ebft k\u1ebf<\/strong>, gi\u1ea3m hi\u1ec7u qu\u1ea3 d\u1eadp ch\u00e1y \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n

3. Kh\u00f4ng c\u00f3 bi\u1ec7n ph\u00e1p c\u00e2n b\u1eb1ng \u00e1p khi x\u1ea3 kh\u00ed<\/strong><\/h2>\n\n\n\n

Kh\u00ed ch\u1eefa ch\u00e1y \u0111\u01b0\u1ee3c n\u00e9n \u1edf \u00e1p su\u1ea5t r\u1ea5t cao (t\u1eeb 25\u2013300 bar<\/strong>), khi phun ra s\u1ebd t\u1ea1o ra ch\u00eanh \u00e1p l\u1edbn<\/strong> trong khu v\u1ef1c b\u1ea3o v\u1ec7.
N\u1ebfu kh\u00f4ng c\u00f3 c\u1eeda x\u1ea3 \u00e1p <\/strong> \u0111\u1ec3 c\u00e2n b\u1eb1ng, s\u1ef1 ch\u00eanh l\u1ec7ch \u00e1p su\u1ea5t \u0111\u1ed9t ng\u1ed9t c\u00f3 th\u1ec3 l\u00e0m bi\u1ebfn d\u1ea1ng tr\u1ea7n, v\u00e1ch ng\u0103n<\/strong>, ho\u1eb7c g\u00e2y h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb nh\u1ea1y c\u1ea3m<\/strong> trong ph\u00f2ng.<\/p>\n\n\n\n

Theo TCVN 7161-1:2024<\/strong>, trong qu\u00e1 tr\u00ecnh x\u1ea3 kh\u00ed, \u00e1p su\u1ea5t d\u01b0 trong khu v\u1ef1c kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 2,5 kPa<\/strong>. V\u00ec v\u1eady, thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng c\u1eeda x\u1ea3 \u00e1p<\/strong> l\u00e0 y\u00eau c\u1ea7u b\u1eaft bu\u1ed9c \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u1ea5u ki\u1ec7n ph\u00f2ng v\u00e0 \u0111\u1ea3m b\u1ea3o qu\u00e1 tr\u00ecnh x\u1ea3 kh\u00ed di\u1ec5n ra \u1ed5n \u0111\u1ecbnh, an to\u00e0n cho thi\u1ebft b\u1ecb v\u00e0 con ng\u01b0\u1eddi.<\/p>\n\n\n\n

4. Gi\u1ea3i ph\u00e1p to\u00e0n di\u1ec7n t\u1eeb S-TEC VINA<\/strong><\/h2>\n\n\n\n

V\u1edbi h\u01a1n 10 n\u0103m kinh nghi\u1ec7m trong s\u1ea3n xu\u1ea5t v\u00e0 tri\u1ec3n khai h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y kh\u00ed, S-TEC VINA<\/strong> mang \u0111\u1ebfn gi\u1ea3i ph\u00e1p \u0111\u1ed3ng b\u1ed9 t\u1eeb thi\u1ebft k\u1ebf \u2013 s\u1ea3n xu\u1ea5t \u2013 l\u1eafp \u0111\u1eb7t<\/strong>, \u0111\u1ea3m b\u1ea3o chu\u1ea9n k\u1ef9 thu\u1eadt TCVN & qu\u1ed1c t\u1ebf<\/strong>.<\/p>\n\n\n\n

\ud83d\udd39 T\u01b0 v\u1ea5n & thi\u1ebft k\u1ebf chuy\u00ean s\u00e2u<\/strong><\/h3>\n\n\n\n

\u0110\u1ed9i ng\u0169 k\u1ef9 s\u01b0 \u0111\u01b0\u1ee3c \u0111\u00e0o t\u1ea1o b\u00e0i b\u1ea3n, lu\u00f4n s\u1eb5n s\u00e0ng t\u01b0 v\u1ea5n, t\u00ednh to\u00e1n v\u00e0 thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng ph\u00f9 h\u1ee3p t\u1eebng c\u00f4ng tr\u00ecnh, t\u1eebng kh\u00f4ng gian b\u1ea3o v\u1ec7.
H\u1ed3 s\u01a1 thi\u1ebft k\u1ebf logic, d\u1ec5 hi\u1ec3u<\/strong>, g\u1ed3m b\u1ea3n v\u1ebd b\u1ed1 tr\u00ed \u0111\u1ea7u phun, s\u01a1 \u0111\u1ed3 logic k\u00edch ho\u1ea1t v\u00e0 b\u1ea3ng t\u00ednh th\u1ec3 t\u00edch chi ti\u1ebft.<\/p>\n\n\n\n

\ud83d\udd39 C\u00f4ng c\u1ee5 t\u00ednh to\u00e1n & ph\u1ea7n m\u1ec1m chuy\u00ean d\u1ee5ng<\/strong><\/h3>\n\n\n\n

S-TEC VINA s\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m thi\u1ebft k\u1ebf \u0111\u1ea1t chu\u1ea9n VdS v\u00e0 ISO<\/strong>, cho ph\u00e9p m\u00f4 ph\u1ecfng l\u01b0u l\u01b0\u1ee3ng, \u00e1p su\u1ea5t v\u00e0 th\u1eddi gian phun \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c theo ti\u00eau chu\u1ea9n.<\/p>\n\n\n\n

\ud83d\udd39 Ki\u1ec3m \u0111\u1ecbnh ch\u1ea5t l\u01b0\u1ee3ng nghi\u00eam ng\u1eb7t<\/strong><\/h3>\n\n\n\n

T\u1ea5t c\u1ea3 thi\u1ebft b\u1ecb \u2013 t\u1eeb b\u00ecnh kh\u00ed, van x\u1ea3, \u0111\u1ebfn \u1ed1ng n\u1ed1i m\u1ec1m \u2013 \u0111\u1ec1u \u0111\u01b0\u1ee3c ki\u1ec3m \u0111\u1ecbnh theo ISO 9001<\/strong> v\u00e0 TCVN 7161<\/strong>, \u0111\u1ea3m b\u1ea3o an to\u00e0n tuy\u1ec7t \u0111\u1ed1i khi v\u1eadn h\u00e0nh.<\/p>\n\n\n\n

M\u1ed9t h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y kh\u00ed ch\u1ec9 th\u1ef1c s\u1ef1 \u201cc\u1ee9u h\u1ecfa\u201d<\/strong> khi \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf, t\u00ednh to\u00e1n v\u00e0 l\u1eafp \u0111\u1eb7t \u0111\u00fang k\u1ef9 thu\u1eadt \u2013 \u0111\u00fang ti\u00eau chu\u1ea9n<\/strong>.
Sai s\u00f3t d\u00f9 nh\u1ecf trong kh\u00e2u thi\u1ebft k\u1ebf c\u0169ng c\u00f3 th\u1ec3 khi\u1ebfn h\u00e0ng tr\u0103m t\u1ef7 \u0111\u1ed3ng t\u00e0i s\u1ea3n b\u1ecb thi\u00eau r\u1ee5i ch\u1ec9 trong v\u00e0i ph\u00fat<\/strong>.<\/p>\n\n\n\n

S-TEC VINA<\/strong> \u2013 \u0111\u1ed3ng h\u00e0nh c\u00f9ng ch\u1ee7 \u0111\u1ea7u t\u01b0, nh\u00e0 th\u1ea7u v\u00e0 \u0111\u01a1n v\u1ecb t\u01b0 v\u1ea5n thi\u1ebft k\u1ebf<\/strong>, cam k\u1ebft mang \u0111\u1ebfn gi\u1ea3i ph\u00e1p ch\u1eefa ch\u00e1y kh\u00ed an to\u00e0n, \u0111\u1ea1t chu\u1ea9n TCVN, t\u1ed1i \u01b0u chi ph\u00ed v\u00e0 hi\u1ec7u qu\u1ea3 l\u00e2u d\u00e0i.<\/strong><\/p>\n\n\n\n

\u0110\u1ecba ch\u1ec9: L\u00f4 CN03, khu CN \u0110\u1ed3ng V\u0103n IV, Ph\u01b0\u1eddng L\u00ea H\u1ed3, T\u1ec9nh Ninh B\u00ecnh<\/p>\n\n\n\n

Hotline: 0386 119 114<\/p>\n\n\n\n

VP \u0111\u1ea1i di\u1ec7n: T\u00f2a 5, D\u2019capitale, 119 \u0110. Tr\u1ea7n Duy H\u01b0ng, Trung Ho\u00e0, C\u1ea7u Gi\u1ea5y, H\u00e0 N\u1ed9i<\/p>\n\n\n\n

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