{"id":29729,"date":"2025-10-21T02:09:15","date_gmt":"2025-10-21T02:09:15","guid":{"rendered":"https:\/\/stecvina.com\/?post_type=solution&p=29729"},"modified":"2025-12-16T10:25:00","modified_gmt":"2025-12-16T10:25:00","slug":"cong-nghe-khong-khi-thieu-oxy-dung-trong-cong-tac-phong-chay-chua-chay","status":"publish","type":"solution","link":"https:\/\/stecvina.com\/en\/solution\/hypoxic-air-fire-suppression-technology\/","title":{"rendered":"C\u00f4ng ngh\u1ec7 kh\u00f4ng kh\u00ed thi\u1ebfu \u00f4xy d\u00f9ng trong c\u00f4ng t\u00e1c ph\u00f2ng ch\u00e1y, ch\u1eefa ch\u00e1y"},"content":{"rendered":"

C\u00f4ng ngh\u1ec7 kh\u00f4ng kh\u00ed thi\u1ebfu \u00f4xy d\u00f9ng trong c\u00f4ng t\u00e1c ph\u00f2ng ch\u00e1y, ch\u1eefa ch\u00e1y, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 h\u1ec7 th\u1ed1ng gi\u1ea3m \u00f4xy (Oxygen Reduction System – ORS), l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt ph\u00f2ng ch\u00e1y, ch\u1eefa ch\u00e1y ch\u1ee7 \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd gi\u1ea3m n\u1ed3ng \u0111\u1ed9 \u00f4xy li\u00ean t\u1ee5c trong c\u00e1c ph\u00f2ng y\u00eau c\u1ea7u \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7. Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y truy\u1ec1n th\u1ed1ng th\u01b0\u1eddng d\u1ef1a tr\u00ean nh\u1eefng nguy\u00ean l\u00fd c\u01a1 b\u1ea3n c\u1ee7a tam gi\u00e1c ch\u00e1y (c\u1eaft ngu\u1ed3n nhi\u1ec7t, c\u00e1ch ly ch\u1ea5t ch\u00e1y, lo\u1ea1i b\u1ecf \u00f4xy) \u0111\u1ec3 d\u1eadp t\u1eaft \u0111\u00e1m ch\u00e1y sau khi ph\u00e1t hi\u1ec7n ch\u00e1y, m\u00e0 s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 kh\u00f4ng kh\u00ed thi\u1ebfu \u00f4xy c\u00f3 kh\u1ea3 n\u0103ng ng\u0103n ng\u1eeba ch\u00e1y v\u00e0 d\u1eadp t\u1eaft \u0111\u00e1m ch\u00e1y.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

1. \u0110\u1eb7c t\u00ednh k\u1ef9 thu\u1eadt.<\/strong><\/p>\n\n\n\n

Trong th\u00e0nh ph\u1ea7n kh\u00f4ng kh\u00ed \u1edf \u00e1p su\u1ea5t kh\u00ed quy\u1ec3n ti\u00eau chu\u1ea9n (1 atm \u2248 101,325 kPa, \u1edf m\u1ef1c n\u01b0\u1edbc bi\u1ec3n), c\u1ee5 th\u1ec3:<\/p>\n\n\n\n

– \u0110\u1ed1i v\u1edbi kh\u00f4ng kh\u00ed kh\u00f4 theo th\u1ec3 t\u00edch:<\/p>\n\n\n\n

+ Nit\u01a1 (N\u2082): ~78,08% \u2192 \u00e1p su\u1ea5t ri\u00eang ph\u1ea7n \u2248 79,1 kPa<\/p>\n\n\n\n

+ \u00d4xy (O\u2082): ~20,95% \u2192 \u00e1p su\u1ea5t ri\u00eang ph\u1ea7n \u2248 21,2 kPa<\/p>\n\n\n\n

+ Argon (Ar): ~0,93% \u2192 \u00e1p su\u1ea5t ri\u00eang ph\u1ea7n \u2248 0,94 kPa<\/p>\n\n\n\n

+ Carbon dioxide (CO\u2082): ~0,04% (dao \u0111\u1ed9ng) \u2192 \u00e1p su\u1ea5t ri\u00eang ph\u1ea7n \u2248 0,04 kPa<\/p>\n\n\n\n

+ Kh\u00ed hi\u1ebfm kh\u00e1c (Ne, He, Kr, Xe, H\u2082, O\u2083\u2026): v\u1ebft (~0,001%)<\/p>\n\n\n\n

– Kh\u00f4ng kh\u00ed \u1ea9m c\u00f3 h\u01a1i n\u01b0\u1edbc: H\u01a1i n\u01b0\u1edbc (H\u2082O) c\u00f3 th\u1ec3 chi\u1ebfm 0\u00f74% th\u1ec3 t\u00edch, t\u00f9y \u0111\u1ed9 \u1ea9m v\u00e0 nhi\u1ec7t \u0111\u1ed9. Khi \u0111\u1ed9 \u1ea9m cao, ph\u1ea7n tr\u0103m c\u1ee7a c\u00e1c kh\u00ed kh\u00e1c s\u1ebd gi\u1ea3m nh\u1eb9 do h\u01a1i n\u01b0\u1edbc thay th\u1ebf m\u1ed9t ph\u1ea7n th\u1ec3 t\u00edch.<\/p>\n\n\n\n

Nh\u01b0 v\u1eady, \u1edf \u00e1p su\u1ea5t kh\u00ed quy\u1ec3n chu\u1ea9n, kh\u00f4ng kh\u00ed chi\u1ebfm ch\u1ee7 y\u1ebfu l\u00e0 N\u2082 (~78%) v\u00e0 O\u2082 (~21%), c\u00f2n l\u1ea1i l\u00e0 Ar, CO\u2082 v\u00e0 c\u00e1c kh\u00ed hi\u1ebfm, k\u00e8m h\u01a1i n\u01b0\u1edbc thay \u0111\u1ed5i.<\/p>\n\n\n\n

Vi\u1ec7c thi\u1ebft l\u1eadp m\u00f4i tr\u01b0\u1eddng th\u1ec3 t\u00edch k\u00edn \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1edfi kh\u00f4ng kh\u00ed thi\u1ebfu \u00f4xy \u0111\u1eb3ng \u00e1p \u0111\u01b0\u1ee3c duy tr\u00ec li\u00ean t\u1ee5c. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 \u00e1p su\u1ea5t ri\u00eang ph\u1ea7n c\u1ee7a \u00f4xy trong kh\u00f4ng kh\u00ed th\u1ea5p h\u01a1n so v\u1edbi \u1edf m\u1ef1c n\u01b0\u1edbc bi\u1ec3n. Kh\u00e1c v\u1edbi m\u00f4i tr\u01b0\u1eddng \u0111\u1eb3ng \u00e1p th\u00f4ng th\u01b0\u1eddng, n\u01a1i m\u00e0 \u00e1p su\u1ea5t \u00f4xy b\u1eb1ng v\u1edbi \u00e1p su\u1ea5t kh\u00ed quy\u1ec3n t\u1ea1i m\u1ef1c n\u01b0\u1edbc bi\u1ec3n, h\u1ec7 th\u1ed1ng kh\u00f4ng kh\u00ed thi\u1ebfu \u00f4xy duy tr\u00ec m\u1ee9c \u00f4xy th\u1ea5p \u0111\u1ec3 ng\u0103n ng\u1eeba nguy c\u01a1 ch\u00e1y.<\/p>\n\n\n\n

Th\u00f4ng th\u01b0\u1eddng, khi thay th\u1ebf t\u1eeb 1\/4 \u0111\u1ebfn 1\/2 l\u01b0\u1ee3ng \u00f4xy trong kh\u00f4ng kh\u00ed (t\u01b0\u01a1ng \u1ee9ng kho\u1ea3ng 5 \u0111\u1ebfn 10% th\u1ec3 t\u00edch kh\u00f4ng kh\u00ed) b\u1eb1ng kh\u00ed nit\u01a1 (ho\u1eb7c C\u00e1cbon \u0111ioxit), m\u00f4i tr\u01b0\u1eddng thu \u0111\u01b0\u1ee3c s\u1ebd ch\u1ee9a x\u1ea5p x\u1ec9 15% \u00f4xy v\u00e0 85% nit\u01a1 theo th\u1ec3 t\u00edch.<\/p>\n\n\n\n

\"\"\/<\/figure>\n\n\n\n

K\u1ebft qu\u1ea3 cho th\u1ea5y, trong m\u00f4i tr\u01b0\u1eddng tr\u1ea1ng th\u00e1i thi\u1ebfu \u00f4xy \u0111\u1eb3ng \u00e1p, c\u00e1c v\u1eadt li\u1ec7u th\u00f4ng th\u01b0\u1eddng kh\u00f3 c\u00f3 kh\u1ea3 n\u0103ng b\u1ed1c ch\u00e1y ho\u1eb7c duy tr\u00ec ch\u00e1y khi ti\u1ebfp x\u00fac v\u1edbi ngu\u1ed3n \u0111\u00e1nh l\u1eeda c\u1ee5c b\u1ed9 c\u00f3 quy m\u00f4 nh\u1ecf. Vi\u1ec7c h\u1ea1 th\u1ea5p n\u1ed3ng \u0111\u1ed9 \u00f4xy xu\u1ed1ng 15% m\u1eb7c d\u00f9 ch\u01b0a t\u1ea1o ra \u0111i\u1ec1u ki\u1ec7n \u0111\u1ec3 lo\u1ea1i tr\u1eeb ho\u00e0n to\u00e0n s\u1ef1 ch\u00e1y ho\u1eb7c d\u1eadp t\u1eaft \u0111\u00e1m ch\u00e1y \u0111ang t\u1ed3n t\u1ea1i. Nh\u01b0ng s\u1ef1 suy gi\u1ea3m n\u00e0y c\u00f3 t\u00e1c \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn kh\u1ea3 n\u0103ng x\u1ea3y ra ch\u00e1y, th\u1ec3 hi\u1ec7n \u1edf c\u00e1c kh\u00eda c\u1ea1nh:<\/p>\n\n\n\n

– N\u0103ng l\u01b0\u1ee3ng c\u1ea7n thi\u1ebft cho qu\u00e1 tr\u00ecnh m\u1ed3i ch\u00e1y t\u0103ng l\u00ean.<\/p>\n\n\n\n

– Th\u1eddi gian c\u1ea3m \u1ee9ng b\u1eaft ch\u00e1y (ignition delay) k\u00e9o d\u00e0i.<\/p>\n\n\n\n

Nh\u1eefng k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u tr\u00ean cho th\u1ea5y, m\u1eb7c d\u00f9 vi\u1ec7c gi\u1ea3m n\u1ed3ng \u0111\u1ed9 \u00f4xy kh\u00f4ng ph\u1ea3i l\u00e0 bi\u1ec7n ph\u00e1p tri\u1ec7t \u0111\u1ec3 \u0111\u1ec3 ng\u0103n ng\u1eeba ch\u00e1y, nh\u01b0ng n\u00f3 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c gi\u1ea3m x\u00e1c su\u1ea5t ph\u00e1t sinh ch\u00e1y c\u0169ng nh\u01b0 n\u00e2ng cao m\u1ee9c an to\u00e0n ch\u00e1y n\u1ed5 trong c\u00e1c m\u00f4i tr\u01b0\u1eddng \u0111\u1eb7c th\u00f9.<\/p>\n\n\n\n

2. Thi\u1ebft k\u1ebf v\u00e0 v\u1eadn h\u00e0nh.<\/strong><\/p>\n\n\n\n

Kh\u00f4ng kh\u00ed c\u00f3 h\u00e0m l\u01b0\u1ee3ng \u00f4xy th\u1ea5p \u0111\u01b0\u1ee3c b\u01a1m v\u00e0o m\u00f4i tr\u01b0\u1eddng c\u00f3 th\u1ec3 t\u00edch k\u00edn \u0111\u1ec3 gi\u1ea3m n\u1ed3ng \u0111\u1ed9 \u00f4xy cho \u0111\u1ebfn khi \u0111\u1ea1t \u0111\u01b0\u1ee3c n\u1ed3ng \u0111\u1ed9 \u00f4xy mong mu\u1ed1n. Do s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a kh\u00f4ng kh\u00ed<\/a>, n\u1ed3ng \u0111\u1ed9 \u00f4xy b\u00ean trong th\u1ec3 t\u00edch \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 t\u0103ng l\u00ean: khi v\u01b0\u1ee3t qu\u00e1 m\u1ed9t ng\u01b0\u1ee1ng nh\u1ea5t \u0111\u1ecbnh, kh\u00f4ng kh\u00ed c\u00f3 h\u00e0m l\u01b0\u1ee3ng \u00f4xy th\u1ea5p l\u1ea1i \u0111\u01b0\u1ee3c b\u01a1m v\u00e0o m\u00f4i tr\u01b0\u1eddng th\u1ec3 t\u00edch \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 cho \u0111\u1ebfn khi gi\u1ea3m \u0111\u1ea1t \u0111\u01b0\u1ee3c n\u1ed3ng \u0111\u1ed9 \u00f4xy mong mu\u1ed1n. C\u00e1c c\u1ea3m bi\u1ebfn \u00f4xy<\/a> \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t trong khu v\u1ef1c \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 th\u1ec3 t\u00edch k\u00edn li\u00ean t\u1ee5c theo d\u00f5i n\u1ed3ng \u0111\u1ed9 \u00f4xy.<\/p>\n\n\n\n

\"\"\/<\/figure>\n\n\n\n

Kh\u00f4ng kh\u00ed c\u00f3 n\u1ed3ng \u0111\u1ed9 \u00f4xy th\u1ea5p \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi c\u00e1c m\u00e1y ph\u00e2n t\u00e1ch kh\u00f4ng kh\u00ed. M\u00e1y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1eb7t b\u00ean trong ho\u1eb7c b\u00ean ngo\u00e0i c\u00e1c ph\u00f2ng \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7; \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u1edbi h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd t\u00f2a nh\u00e0. V\u00e0 \u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n \u0111\u1ebfn c\u00e1c khu v\u1ef1c y\u00eau c\u1ea7u b\u1ea3o v\u1ec7 th\u00f4ng qua c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng chuy\u00ean d\u1ee5ng ho\u1eb7c \u0111\u01a1n gi\u1ea3n h\u01a1n l\u00e0 th\u00f4ng qua h\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3<\/a> hi\u1ec7n c\u00f3.<\/p>\n\n\n\n

M\u1ee9c n\u1ed3ng \u0111\u1ed9 \u00f4xy ch\u00ednh x\u00e1c c\u1ea7n duy tr\u00ec trong m\u00f4i tr\u01b0\u1eddng th\u1ec3 t\u00edch \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh sau khi \u0111\u00e1nh gi\u00e1 c\u1ea9n th\u1eadn v\u1ec1 lo\u1ea1i c\u1ea5u t\u1ea1o v\u1eadt li\u1ec7u. V\u00ed d\u1ee5 \u00e1p d\u1ee5ng \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 lo\u1ea1i v\u1eadt li\u1ec7u sau \u0111\u00e2y:<\/p>\n\n\n\n

– Gi\u1edbi h\u1ea1n n\u1ed3ng \u0111\u1ed9 ph\u1ea7n tr\u0103m (%) \u00f4xy cho m\u1ed9t s\u1ed1 lo\u1ea1i kh\u00ed ch\u00e1y khi s\u1eed d\u1ee5ng b\u01a1m kh\u00f4ng kh\u00ed c\u00f3 h\u00e0m l\u01b0\u1ee3ng \u00f4xy th\u1ea5p ch\u1ee9a kh\u00ed Nit\u01a1 ho\u1eb7c C\u00e1cbon \u0111ioxit:<\/p>\n\n\n\n

TT<\/strong><\/td>Kh\u00ed ho\u1eb7c h\u01a1i<\/strong><\/td>Nit\u01a1<\/strong><\/td>Cacbon \u0111ioxit<\/strong><\/td><\/tr>
1<\/td>Hydro<\/a><\/td>5<\/td>5,2<\/td><\/tr>
2<\/td>M\u00eatan<\/a><\/td>12<\/td>14,5<\/td><\/tr>
3<\/td>Etan<\/a><\/td>11<\/td>13,5<\/td><\/tr>
4<\/td>Propan<\/a><\/td>11,5<\/td>14,5<\/td><\/tr>
5<\/td>n-Butan<\/a><\/td>12<\/td>14,5<\/td><\/tr>
6<\/td>Isobutan<\/a><\/td>12<\/td>15<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

– Gi\u1edbi h\u1ea1n n\u1ed3ng \u0111\u1ed9 ph\u1ea7n tr\u0103m (%) \u00f4xy cho m\u1ed9t s\u1ed1 lo\u1ea1i v\u1eadt li\u1ec7u r\u1eafn khi s\u1eed d\u1ee5ng b\u01a1m kh\u00f4ng kh\u00ed c\u00f3 h\u00e0m l\u01b0\u1ee3ng \u00f4xy th\u1ea5p ch\u1ee9a kh\u00ed Nit\u01a1:<\/p>\n\n\n\n


 TT<\/strong><\/td>		V\u1eadt li\u1ec7u<\/strong><\/td>Nit\u01a1<\/strong><\/td><\/tr>
1<\/td>PE-HD<\/a><\/td>16,0<\/td><\/tr>
2<\/td>PP<\/a><\/td>16,0<\/td><\/tr>
3<\/td>PMMA<\/a><\/td>15,9<\/td><\/tr>
4<\/td>PVC<\/a><\/td>16,9<\/td><\/tr>
5<\/td>PE-LD<\/a><\/td>15,9<\/td><\/tr>
6<\/td>G\u1ed7 th\u00f4ng<\/a><\/td>17,0<\/td><\/tr>
7<\/td>B\u00eca c\u1ee9ng<\/a><\/td>15,0<\/td><\/tr>
8<\/td>B\u00eca c\u00e1c t\u00f4ng \u0111\u01b0\u1ee3c x\u1ebfp ch\u1ed3ng l\u00ean nhau<\/a><\/td>15,0<\/td><\/tr>
9<\/td>Gi\u1ea5y<\/a><\/td>14,1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Hi\u1ec3u m\u1ed9t c\u00e1ch kh\u00e1c, vi\u1ec7c thay \u0111\u1ed5i kh\u00f4ng kh\u00ed c\u00f3 h\u00e0m l\u01b0\u1ee3ng \u00f4xy th\u1ea5p b\u1eb1ng c\u00e1ch t\u0103ng n\u1ed3ng \u0111\u1ed9 kh\u00ed tr\u01a1<\/a> (nit\u01a1 ho\u1eb7c cacbon \u0111ioxit), c\u00f3 nhi\u1ec7m v\u1ee5 nh\u01b0 m\u1ed9t ch\u1ea5t ch\u1ecbu nhi\u1ec7t l\u00e0m ngu\u1ed9i nhi\u1ec7t \u0111\u1ed9 ng\u1ecdn l\u1eeda xu\u1ed1ng m\u1ee9c m\u00e0 ng\u1ecdn l\u1eeda kh\u00f4ng th\u1ec3 t\u1ed3n t\u1ea1i. Qua nghi\u00ean c\u1ee9u t\u00e0i li\u1ec7u cho th\u1ea5y, s\u1eed d\u1ee5ng cacbon \u0111ioxit hi\u1ec7u qu\u1ea3 h\u01a1n nit\u01a1 do nhi\u1ec7t dung<\/a> mol cao h\u01a1n.<\/p>\n\n\n\n

 3. \u1ee8ng d\u1ee5ng.<\/strong><\/p>\n\n\n\n

Vi\u1ec7c ng\u0103n ng\u1eeba ch\u00e1y thay v\u00ec d\u1eadp t\u1eaft \u0111\u00e1m ch\u00e1y b\u1eb1ng c\u00f4ng ngh\u1ec7 kh\u00f4ng kh\u00ed thi\u1ebfu oxy kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y th\u00f4ng th\u01b0\u1eddng, kh\u00f4ng c\u1ea7n \u1ed1ng d\u1eabn ho\u1eb7c v\u00f2i phun chuy\u00ean d\u1ee5ng, ph\u00f9 h\u1ee3p s\u1eed d\u1ee5ng \u0111\u1ec3 ph\u00f2ng ch\u00e1y, ch\u1eefa ch\u00e1y trong:<\/p>\n\n\n\n

– Solar<\/a>\/C\u01a1 s\u1edf C\u00f4ng ngh\u1ec7 th\u00f4ng tin\/Vi\u1ec5n th\u00f4ng.<\/p>\n\n\n\n

– \u1ee8ng d\u1ee5ng di s\u1ea3n.<\/p>\n\n\n\n

– Kho l\u01b0u<\/a> tr\u1eef, nh\u00e0 kho, nh\u00e0 m\u00e1y.<\/p>\n\n\n\n

– T\u1ee7 \u0111\u00f4ng v\u00e0 kho l\u1ea1nh.<\/p>\n\n\n\n

Ngo\u00e0i ra, kh\u00f4ng kh\u00ed thi\u1ebfu \u00f4xy c\u00f3 nh\u1eefng c\u00f4ng d\u1ee5ng kh\u00e1c nh\u01b0 ng\u0103n ng\u1eeba s\u1ef1 xu\u1ed1ng c\u1ea5p c\u1ee7a hi\u1ec7n v\u1eadt v\u00e0 b\u1ea3o qu\u1ea3n th\u1ef1c ph\u1ea9m.<\/p>\n\n\n\n

T\u1ea1i Vi\u1ec7t Nam, c\u00f4ng ngh\u1ec7 n\u00e0y ch\u01b0a ph\u1ed5 bi\u1ebfn r\u1ed9ng r\u00e3i. M\u1ed9t s\u1ed1 d\u1ef1 \u00e1n trung t\u00e2m d\u1eef li\u1ec7u, kho t\u00e0i li\u1ec7u \u0111\u1eb7c bi\u1ec7t, b\u1ea3o t\u00e0ng t\u1ea1i H\u00e0 N\u1ed9i, TP. H\u1ed3 Ch\u00ed Minh \u0111\u00e3 c\u00f3 nh\u00e0 th\u1ea7u qu\u1ed1c t\u1ebf gi\u1edbi thi\u1ec7u v\u00e0 l\u1eafp \u0111\u1eb7t.<\/p>\n\n\n\n

C\u00f4ng ngh\u1ec7 ph\u00f2ng ch\u00e1y, ch\u1eefa ch\u00e1y b\u1eb1ng kh\u00f4ng kh\u00ed thi\u1ebfu \u00f4xy l\u00e0 gi\u1ea3i ph\u00e1p ph\u00f2ng ch\u00e1y ch\u1ee7 \u0111\u1ed9ng hi\u1ec7n \u0111\u1ea1i, ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean nguy\u00ean l\u00fd gi\u1ea3m n\u1ed3ng \u0111\u1ed9 \u00f4xy trong m\u00f4i tr\u01b0\u1eddng xu\u1ed1ng d\u01b0\u1edbi ng\u01b0\u1ee1ng ch\u00e1y nh\u01b0ng v\u1eabn \u0111\u1ea3m b\u1ea3o an to\u00e0n cho con ng\u01b0\u1eddi. V\u1edbi kh\u1ea3 n\u0103ng ph\u00f2ng ng\u1eeba ch\u00e1y hi\u1ec7u qu\u1ea3, an to\u00e0n v\u00e0 th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng, c\u00f4ng ngh\u1ec7 kh\u00f4ng kh\u00ed thi\u1ebfu \u00f4xy ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i, h\u1ee9a h\u1eb9n tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng gi\u1ea3i ph\u00e1p b\u1ea3o v\u1ec7 th\u00f4ng minh v\u00e0 b\u1ec1n v\u1eefng trong t\u01b0\u01a1ng lai.\/.<\/p>\n\n\n\n

Vi\u1ec7n Nghi\u00ean c\u1ee9u khoa h\u1ecdc c\u00f4ng ngh\u1ec7 PCCC v\u00e0 CNCH <\/strong>(s\u01b0u t\u1ea7m).<\/strong><\/em><\/p>\n\n\n\n

Ngu\u1ed3n: c\u1ee5c c\u1ea3nh s\u00e1t ph\u00f2ng ch\u00e1y ch\u1eefa ch\u00e1y v\u00e0 c\u1ee9u n\u1ea1n c\u1ee9u h\u1ed9<\/em><\/p>\n\n\n\n

S-TEC VINA \u2013 T\u1ef1 h\u00e0o s\u1ea3n xu\u1ea5t t\u1ea1i Vi\u1ec7t Nam, v\u01b0\u01a1n t\u1ea7m ch\u1ea5t l\u01b0\u1ee3ng qu\u1ed1c t\u1ebf.<\/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

Email: info@stecvina.com<\/p>","protected":false},"author":5,"featured_media":29730,"template":"","meta":{"_acf_changed":false},"solution_cat":[],"solution_tag":[],"class_list":["post-29729","solution","type-solution","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nC\u00f4ng ngh\u1ec7 kh\u00f4ng kh\u00ed thi\u1ebfu Oxy (Hypoxic) trong PCCC<\/title>\n<meta name=\"description\" content=\"STEC Vina cung c\u1ea5p c\u00f4ng ngh\u1ec7 kh\u00f4ng kh\u00ed thi\u1ebfu oxy ti\u00ean ti\u1ebfn. 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