S\u1ef1 c\u1ea1nh tranh s\u00f4i \u0111\u1ed9ng c\u1ee7a th\u1ecb tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p t\u1ef1 \u0111\u1ed9ng h\u00f3a to\u00e0n c\u1ea7u hi\u1ec7n nay \u0111\u00f2i h\u1ecfi r\u1ea5t cao v\u1ec1 hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u00e1c m\u00e1y b\u01a1m trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p nh\u01b0 h\u00f3a d\u1ea7u (h\u00ecnh 1), th\u1ef1c ph\u1ea9m \/ n\u01b0\u1edbc gi\u1ea3i kh\u00e1t, d\u01b0\u1ee3c ph\u1ea9m, v\u00e0 n\u01b0\u1edbc \/ x\u1eed l\u00fd ch\u1ea5t th\u1ea3i v\u00e0 m\u1ed9t s\u1ed1 c\u00e1c ng\u00e0nh kh\u00e1c. T\u1ea1i \u0111\u00e2y, c\u00e1c qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng v\u00e0 chuy\u1ec3n giao di\u1ec5n ra li\u00ean t\u1ee5c 24\/7. K\u1ebft qu\u1ea3 l\u00e0 c\u00e1c m\u00e1y b\u01a1m t\u1ea1i h\u1ea7u h\u1ebft c\u00e1c nh\u00e0 m\u00e1y \u0111ang ch\u1ea1y g\u1ea7n nh\u01b0 v\u1edbi 100% c\u00f4ng su\u1ea5t \u0111\u1ec3 \u0111\u00e1p \u1ee9ng theo k\u1ecbp c\u00e1c qu\u00e1 tr\u00ecnh c\u00f4ng ngh\u1ec7 nh\u1eb1m \u0111\u1ea1t m\u1ee5c ti\u00eau v\u00e0 y\u00eau c\u1ea7u \u0111\u1ec1 ra. M\u1ed9t trong nh\u1eefng m\u1ed1i nguy hi\u1ec3m ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111e d\u1ecda \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 c\u1ee7a b\u01a1m l\u00e0 m\u00f4i ch\u1ea5t d\u00f2ng ch\u1ea3y kh\u00f4ng \u0111\u1ec1u (<\/em> irregular material flow)<\/em>, m\u00e0 c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn ba y\u1ebfu t\u1ed1 ti\u00eau c\u1ef1c: (1) nhi\u1ec5u lo\u1ea1n d\u00f2ng ch\u1ea3y – d\u00f2ng xo\u00e1y (flow turbulence), (2) l\u01b0u l\u01b0\u1ee3ng d\u00f2ng ch\u1ea3y th\u1ea5p (low flows), ho\u1eb7c (3) \u0111i\u1ec1u ki\u1ec7n ch\u1ea1y kh\u00f4 (dry running conditions).<\/p>\n\n\n\n Ki\u1ec3m so\u00e1t d\u00f2ng ch\u1ea3y b\u1ea5t th\u01b0\u1eddng<\/strong><\/p>\n\n\n\n B\u01b0\u1edbc \u0111\u1ea7u ti\u00ean trong qu\u00e1 tr\u00ecnh b\u1ea3o v\u1ec7 b\u01a1m b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c ph\u00e2n t\u00edch l\u01b0u l\u01b0\u1ee3ng d\u00f2ng ch\u1ea3y. B\u1ea1n mu\u1ed1n ph\u00e2n t\u00edch l\u01b0u l\u01b0\u1ee3ng d\u00f2ng ch\u1ea3y \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c m\u00f4i ch\u1ea5t l\u00e0 th\u01b0\u1eddng xuy\u00ean ch\u1ea3y \u1edf \u00e1p su\u1ea5t y\u00eau c\u1ea7u c\u1ee7a b\u01a1m v\u1edbi m\u1ed9t headloss t\u1ed1i thi\u1ec3u. B\u1ea5t k\u1ef3 m\u1ed9t \u0111i\u1ec1u ki\u1ec7n n\u00e0o trong qu\u00e1 tr\u00ecnh c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra d\u00f2ng ch\u1ea3y b\u1ea5t th\u01b0\u1eddng, nh\u01b0 nhi\u1ec5u lo\u1ea1n, thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9, c\u00e1c kh\u00ed t\u1ea1p ch\u1ea5t kh\u00f4ng mong mu\u1ed1n l\u1eabn trong m\u00f4i ch\u1ea5t, v.v. Nh\u1eefng v\u1ea5n \u0111\u1ec1 c\u1ee7a d\u00f2ng ch\u1ea3y kh\u00f4ng \u0111\u1ec1u v\u00e0 nhi\u1ec5u lo\u1ea1n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1eb7c bi\u1ec7t coi tr\u1ecdng v\u00e0 l\u00e0 th\u00e1ch th\u1ee9c th\u1ef1c s\u1ef1 c\u1ea7n ph\u1ea3i gi\u1ea3i quy\u1ebft, v\u00ec lo\u1ea1i b\u1ecf nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5 th\u01b0\u1eddng l\u00e0 r\u1ea5t kh\u00f3 kh\u0103n – do \u0111\u00f3 b\u1ea1n c\u1ea7n c\u00f3 v\u00e0 th\u1ef1c hi\u1ec7n m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c ph\u00f9 h\u1ee3p \u0111\u1ec3 lo\u1ea1i b\u1ecf n\u00f3.<\/p>\n\n\n\n Nguy\u00ean nh\u00e2n ch\u00ednh khi n\u00f3i \u0111\u1ebfn m\u00e1y b\u01a1m b\u1ecb h\u01b0 h\u1ea1i l\u00e0 s\u1ef1 bi\u1ebfn \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9 t\u1eeb d\u00f2ng ch\u1ea3y th\u1ea5p ho\u1eb7c c\u00e1c \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng kh\u00f4 (kh\u00f4ng c\u00f3 m\u00f4i ch\u1ea5t ch\u1ea3y qua), trong \u0111\u00f3 khi x\u1ea3y ra khi ch\u1ea5t l\u1ecfng ch\u1ea3y \u0111\u1ed9t ng\u1ed9t ch\u1eadm ho\u1eb7c d\u1eebng ho\u00e0n to\u00e0n ch\u1ea3y qua c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng ho\u1eb7c b\u01a1m. Khi kh\u00f4ng c\u00f3 m\u00f4i ch\u1ea5t ch\u1ea3y qua, nhi\u1ec7t \u0111\u1ed9 t\u0103ng c\u00f3 th\u1ec3 ph\u00e1 h\u1ee7y v\u00f2ng bi ho\u1eb7c m\u1ed1i h\u00e0n c\u1ee7a m\u1ed9t m\u00e1y b\u01a1m. Vi\u1ec7c s\u1eeda ch\u1eefa \u0111\u01b0\u1ee3c th\u1eadm ch\u00ed c\u00f3 th\u1ec3, tuy nhi\u00ean s\u1ebd r\u1ea5t t\u1ed1n k\u00e9m v\u1ec1 chi ph\u00ed s\u1eeda ch\u1eefa, thay th\u1ebf v\u00e0 th\u1eddi gian.<\/p>\n\n\n\n Lo\u1ea1i b\u1ecf d\u00f2ng ch\u1ea3y b\u1ea5t th\u01b0\u1eddng (Irregular Flows)<\/strong><\/p>\n\n\n\n \u0110\u1ec3 b\u01a1m c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng t\u1ed1t v\u00e0 hi\u1ec7u qu\u1ea3 cao c\u1ea7n m\u1ed9t c\u1ea5u h\u00ecnh \u1ed5n \u0111\u1ecbnh c\u1ee7a d\u00f2ng ch\u1ea3y \u1edf th\u01b0\u1ee3ng ngu\u1ed3n trong \u0111\u01b0\u1eddng \u1ed1ng d\u1eabn ch\u1ea5t l\u1ecfng tr\u01b0\u1edbc khi \u0111i v\u00e0o b\u01a1m. C\u00e1c d\u00f2ng ch\u1ea3y b\u1ea5t th\u01b0\u1eddng (Irregular flows) th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn c\u00e1c r\u1ea1n n\u1ee9t (cavitation), \u0111i\u1ec1u n\u00e0y c\u1ef1c k\u1ef3 nguy hi\u1ec3m t\u1ea1i \u0111i\u1ec3m h\u00fat b\u01a1m. C\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t b\u01a1m \u0111\u00e3 khuy\u1ebfn c\u00e1o r\u1eb1ng c\u1ea7n \u00edt nh\u1ea5t m\u1ed9t kho\u1ea3ng c\u00e1ch b\u1eb1ng 10 l\u1ea7n \u0111\u01b0\u1eddng k\u00ednh (10D) c\u1ee7a \u1ed1ng th\u1eb3ng (unobstructed pipe) \u0111\u01b0\u1ee3c \u0111\u1eb7t gi\u1eefa c\u00e1c \u0111i\u1ec3m b\u01a1m h\u00fat v\u00e0 khu\u1ef7u \u0111\u1ea7u ti\u00ean ho\u1eb7c c\u00e1c nhi\u1ec5u lo\u1ea1n kh\u00e1c (disturbance). V\u1eadt c\u1ea3n v\u00e0\/ho\u1eb7c \u0103n m\u00f2n trong \u0111\u01b0\u1eddng \u1ed1ng c\u00f3 th\u1ec3 l\u00e0m thay \u0111\u1ed5i v\u1eadn t\u1ed1c v\u00e0 tr\u1ea1ng th\u00e1i c\u1ee7a c\u00e1c m\u00f4i ch\u1ea5t v\u00e0 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u1ea3 \u00e1p su\u1ea5t c\u1ee7a n\u00f3.<\/p>\n\n\n\n Trong h\u1ea7u h\u1ebft tr\u01b0\u1eddng h\u1ee3p th\u1ef1c t\u1ebf t\u1ea1i c\u00e1c nh\u00e0 m\u00e1y, c\u00e1c k\u1ef9 s\u01b0 th\u01b0\u1eddng r\u1ea5t h\u1ea1n ch\u1ebf vi\u1ec7c l\u1eafp \u0111\u1eb7t c\u00e1c khu\u1ef7u, c\u00e1c van ho\u1eb7c thi\u1ebft b\u1ecb kh\u00e1c \u1edf qu\u00e1 g\u1ea7n v\u1edbi m\u1ed9t m\u00e1y b\u01a1m. C\u00e1c thi\u1ebft b\u1ecb n\u00e0y c\u00f3 th\u1ec3 t\u1ea1o ra d\u00f2ng ch\u1ea3y xo\u00e1y (swirl) v\u00e0 l\u00e0m bi\u1ebfn d\u1ea1ng tr\u1ea1ng th\u00e1i v\u1eadn t\u1ed1c d\u00f2ng ch\u1ea3y (velocity profile distortion) trong \u0111\u01b0\u1eddng \u1ed1ng (c\u0169ng nh\u01b0 thay \u0111\u1ed5i \u00e1p su\u1ea5t). R\u1ed1i lo\u1ea1n n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra ti\u1ebfng \u1ed3n, rung v\u01b0\u1ee3t qu\u00e1 cho ph\u00e9p v\u00e0 c\u00f3 th\u1ec3 sinh ra c\u00e1c v\u1ebft r\u1ea1n n\u1ee9t, k\u1ebft qu\u1ea3 l\u00e0 l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd c\u1ee7a v\u00f2ng bi ho\u1eb7c c\u00e1c m\u1ed1i h\u00e0n, v\u00e0 \u0111\u01b0\u01a1ng nhi\u00ean s\u1ebd l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd c\u1ee7a b\u01a1m.<\/p>\n\n\n\n M\u1ed9t gi\u1ea3i ph\u00e1p t\u1ed1t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ed9t c\u1ea5u h\u00ecnh d\u00f2ng ch\u1ea3y t\u1ed1i \u01b0u cho ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 h\u01a1n l\u00e0 c\u00e0i \u0111\u1eb7t m\u1ed9t thi\u1ebft b\u1ecb \u0111i\u1ec1u ti\u1ebft d\u00f2ng ch\u1ea3y th\u01b0\u1ee3ng ngu\u1ed3n khi qua c\u00e1c kh\u1ee7y t\u1edbi b\u01a1m. Vi\u1ec7c c\u00f4 l\u1eadp nh\u1eefng t\u00e1c \u0111\u1ed9ng c\u1ee7a bi\u1ebfn d\u1ea1ng c\u1ea5u h\u00ecnh v\u1eadn t\u1ed1c, nhi\u1ec5u lo\u1ea1n, d\u00f2ng xo\u00e1y v\u00e0 d\u00f2ng ch\u1ea3y d\u1ecb th\u01b0\u1eddng kh\u00e1c trong \u0111\u01b0\u1eddng \u1ed1ng d\u1eabn c\u1ee7a b\u1ea1n s\u1ebd t\u1ea1o ra \u0111\u01b0\u1ee3c m\u1ed9t tr\u1ea1ng th\u00e1i v\u1eadn t\u1ed1c t\u01b0\u01a1ng \u0111\u1ed1i th\u1eb3ng, \u0111\u1ed1i x\u1ee9ng, v\u1edbi t\u1ed5n th\u1ea5t \u00e1p l\u1ef1c t\u1ed1i thi\u1ec3u. \u0110i\u1ec1u n\u00e0y s\u1ebd l\u00e0m t\u0103ng h\u01a1n n\u1eefa tu\u1ed5i th\u1ecd c\u1ee7a b\u01a1m.<\/p>\n\n\n\n Ki\u1ec3m so\u00e1t l\u01b0u l\u01b0\u1ee3ng b\u01a1m<\/strong><\/p>\n\n\n\n \u0110\u1ec3 tr\u00e1nh nh\u1eefng h\u01b0 h\u1ea1i do d\u00f2ng ch\u1ea3y th\u1ea5p ho\u1eb7c ho\u1ea1t \u0111\u1ed9ng trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n kh\u00f4ng c\u00f3 m\u00f4i ch\u1ea5t g\u00e2y ra cho b\u01a1m, c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft b\u1eb1ng c\u00e1ch c\u00e0i \u0111\u1eb7t m\u1ed9t \u0111i\u1ec3m chuy\u1ec3n \u0111\u1ed5i l\u01b0u l\u01b0\u1ee3ng trong qu\u00e1 tr\u00ecnh. R\u01a1le chuy\u1ec3n m\u1ea1ch l\u01b0u l\u01b0\u1ee3ng k\u00e9p s\u1ebd ph\u00e1t hi\u1ec7n kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t \u0111i\u1ec1u ki\u1ec7n l\u01b0u l\u01b0\u1ee3ng th\u1ea5p, m\u00e0 c\u00f2n b\u00e1o \u0111\u1ed9ng trong \u0111i\u1ec1u ki\u1ec7n qu\u00e1 kh\u00f4. Kh\u1ea3 n\u0103ng n\u00e0y cho ph\u00e9p h\u1ec7 th\u1ed1ng ki\u1ec3m so\u00e1t ho\u1eb7c ng\u01b0\u1eddi v\u1eadn h\u00e0nh bi\u1ebft \u0111\u1ec3 c\u00f3 bi\u1ec7n ph\u00e1p kh\u1eafc ph\u1ee5c, x\u1eed l\u00fd k\u1ecbp th\u1eddi tr\u01b0\u1edbc khi v\u00f2ng bi c\u1ee7a m\u00e1y b\u01a1m l\u00e0 qu\u00e1 n\u00f3ng v\u00e0 b\u1ecb h\u1ecfng<\/p>\n\n\n\n Ch\u1ee9c n\u0103ng c\u1ea3nh b\u00e1o k\u00e9p n\u00e0y \u00e1p d\u1ee5ng cho c\u1ea3 l\u01b0u l\u01b0\u1ee3ng v\u00e0 nhi\u1ec7t \u0111\u1ed9, ho\u1eb7c ph\u00e1t hi\u1ec7n m\u1ee9c trong ch\u1ec9 m\u1ed9t thi\u1ebft b\u1ecb duy nh\u1ea5t. Thi\u1ebft b\u1ecb n\u00e0y c\u00f3 hai ki\u1ec3u l\u1eafp \u0111\u1eb7t l\u00e0 In-line v\u00e0 Insertion (c\u1eafm tr\u1ef1c ti\u1ebfp v\u00e0o \u0111\u01b0\u1eddng \u1ed1ng) cho c\u00e1c \u1ee9ng d\u1ee5ng l\u00e0 \u0111\u01b0\u1eddng \u1ed1ng l\u1edbn v\u00e0 nh\u1ecf.<\/p>\n\n\n\n Ch\u1ecdn l\u1ef1a m\u1ed9t r\u01a1 le l\u01b0u l\u01b0\u1ee3ng (c\u00f4ng t\u1eafc l\u01b0u l\u01b0\u1ee3ng)<\/strong><\/p>\n\n\n\n Khi \u0111\u00e1nh gi\u00e1 m\u1ed9t r\u01a1le l\u01b0u l\u01b0\u1ee3ng \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u00e1y b\u01a1m ho\u1eb7c b\u1ea5t k\u1ef3 \u1ee9ng d\u1ee5ng n\u00e0o, b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean l\u00e0 vi\u1ec7c l\u1ef1a ch\u1ecdn c\u00f4ng ngh\u1ec7 ph\u00f9 h\u1ee3p v\u1edbi m\u00f4i ch\u1ea5t v\u00e0 l\u01b0u l\u01b0\u1ee3ng d\u00f2ng ch\u1ea3y. C\u00f3 r\u1ea5t nhi\u1ec1u c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn s\u1eb5n c\u00f3, v\u00e0 nh\u1eefng c\u00f4ng ngh\u1ec7 ch\u00ednh hi\u1ec7n nay bao g\u1ed3m:<\/p>\n\n\n\n V\u1edbi m\u1ed7i c\u00f4ng ngh\u1ec7 l\u1ea1i c\u00f3 nh\u1eefng \u01b0u\/nh\u01b0\u1ee3c \u0111i\u1ec3m ri\u00eang, ph\u1ee5 thu\u1ed9c v\u00e0o m\u00f4i ch\u1ea5t v\u00e0 c\u00e1c y\u00eau c\u1ea7u \u1ee9ng d\u1ee5ng ri\u00eang. Tuy nhi\u00ean, \u0111\u1ec3 ch\u1ecdn \u0111\u01b0\u1ee3c thi\u1ebft b\u1ecb l\u00e0 ph\u00f9 h\u1ee3p nh\u1ea5t, c\u1ea7n ph\u1ea3i l\u01b0u t\u00e2m \u0111\u1ebfn c\u00e1c \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng, m\u00f4i tr\u01b0\u1eddng, k\u1ebf ho\u1ea1ch b\u1ea3o tr\u00ec c\u1ee7a nh\u00e0 m\u00e1y \u0111\u1ec3 \u0111\u01b0a ra nh\u1eefng l\u1ef1a ch\u1ecdn t\u1ed1t nh\u1ea5t.<\/p>\n\n\n\n K\u1ebft lu\u1eadn<\/strong><\/p>\n\n\n\n T\u1eeb nh\u1eefng kinh nghi\u1ec7m tr\u00ean \u0111\u00e3 cho th\u1ea5y, ch\u00fang ta ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 ph\u00f2ng tr\u00e1nh \u0111\u01b0\u1ee3c nh\u1eefng r\u1ee7i ro v\u00e0 phi\u1ec1n ph\u1ee9c do vi\u1ec7c ph\u1ea3i th\u01b0\u1eddng xuy\u00ean s\u1eeda ch\u1eefa v\u00e0 thay th\u1ebf c\u00e1c m\u00e1y b\u01a1m b\u1eb1ng c\u00e1ch ch\u00fa \u00fd t\u1edbi c\u00f4ng ngh\u1ec7 \u0111o v\u00e0 vi\u1ec7c l\u1eafp \u0111\u1eb7t ph\u00f9 h\u1ee3p. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 ba b\u01b0\u1edbc \u0111\u1ec1 xu\u1ea5t \u0111\u1ec3 ch\u1ee7 \u0111\u1ed9ng ph\u00f2ng ng\u1eeba \u0111\u1ec3 tr\u00e1nh thay th\u1ebf b\u01a1m s\u1edbm:<\/p>\n\n\n\n Xem x\u00e9t vi\u1ec7c l\u1eafp \u0111\u1eb7t th\u00eam m\u1ed9t thi\u1ebft b\u1ecb \u0111i\u1ec1u ti\u1ebft d\u00f2ng ch\u1ea3y \u0111\u1ec3 lo\u1ea1i tr\u1eeb c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 r\u1ed1i lo\u1ea1n d\u00f2ng ch\u1ea3y. B\u1edfi m\u1ed9t trong nh\u1eefng v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u1edbi b\u01a1m l\u00e0 d\u00f2ng ch\u1ea3y b\u1ea5t th\u01b0\u1eddng v\u00e0 r\u1ed1i lo\u1ea1n c\u1ea5u h\u00ecnh d\u00f2ng ch\u1ea3y.<\/p>\n\n\n\n Vi\u1ec7c l\u1eafp \u0111\u1eb7t thi\u1ebft b\u1ecb r\u01a1le l\u01b0u l\u01b0\u1ee3ng v\u1edbi c\u1ea3nh b\u00e1o k\u00e9p (dual-arlam) trong c\u00e1c qu\u00e1 tr\u00ecnh s\u1ebd gi\u00fap n\u00e2ng cao \u0111\u1ed9 tin c\u1eady v\u00e0 an to\u00e0n trong vi\u1ec7c v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh d\u00e2y chuy\u1ec1n c\u00f4ng ngh\u1ec7. FCI (M\u1ef9)<\/a> l\u00e0 H\u00e3ng \u0111i \u0111\u1ea7u th\u1ebf gi\u1edbi hi\u1ec7n nay v\u1ec1 c\u00e1c thi\u1ebft b\u1ecb \u0111o l\u01b0u l\u01b0\u1ee3ng v\u00e0 \u0111o m\u1ee9c v\u1edbi m\u00f4i ch\u1ea5t kh\u00ed v\u00e0 ch\u1ea5t l\u1ecfng, v\u1edbi c\u00f4ng ngh\u1ec7 ph\u00e2n t\u00e1n nhi\u1ec7t theo nguy\u00ean l\u00fd \u0111\u1eb3ng d\u00f2ng, FCI \u0111\u00e3 t\u1ea1o d\u1ef1ng \u0111\u01b0\u1ee3c uy t\u00edn r\u1ea5t l\u1edbn b\u1edfi h\u00e0ng lo\u1ea1t c\u00e1c gi\u1ea3i ph\u00e1p b\u1ea3o v\u1ec7 h\u1eefu hi\u1ec7u trong c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p tr\u1ecdng \u0111i\u1ec3m nh\u01b0 d\u1ea7u kh\u00ed, h\u00f3a d\u1ea7u, nhi\u1ec7t \u0111i\u1ec7n, h\u00f3a ch\u1ea5t,.v.v..<\/p>\n\n\n\n M\u1ecdi th\u00f4ng tin y\u00eau c\u1ea7u v\u1ec1 thi\u1ebft b\u1ecb v\u00e0 gi\u1ea3i ph\u00e1p, vui l\u00f2ng li\u00ean h\u1ec7 tr\u1ef1c ti\u1ebfp:<\/strong><\/p>\n\n\n\n \u0110\u1ea1i di\u1ec7n ch\u00ednh H\u00e3ng FCI-M\u1ef9 t\u1ea1i th\u1ecb tr\u01b0\u1eddng Vi\u1ec7t Nam<\/p>\n\n\n\n VINTEC ENGINEERING JSC<\/strong> Ng\u01b0\u1eddi Vi\u1ec7t Nam ch\u00fang ta v\u1eabn th\u01b0\u1eddng n\u00f3i: \u201cPh\u00f2ng b\u1ec7nh h\u01a1n ch\u1eefa b\u1ec7nh\u201d \u0111i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c \u0111\u1eb7t ra b\u1edfi trong c\u00e1c qu\u00e1 tr\u00ecnh v\u00e0 d\u00e2y chuy\u1ec1n c\u00f4ng ngh\u1ec7 trong nh\u00e0 m\u00e1y, c\u00e1c k\u1ef9 s\u01b0 qu\u00e1 tr\u00ecnh \u0111\u00e3 ph\u1ea3i m\u1ea5t r\u1ea5t nhi\u1ec1u c\u00f4ng s\u1ee9c \u0111\u1ec3 s\u1eeda ch\u1eefa ho\u1eb7c thay th\u1ebf c\u00e1c m\u00e1y b\u01a1m. B\u1edfi trong th\u1ef1c…<\/p>","protected":false},"author":1,"featured_media":5290,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[76],"tags":[],"class_list":["post-5288","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fci-measure"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/vintec.com.vn\/vi\/wp-json\/wp\/v2\/posts\/5288","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vintec.com.vn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vintec.com.vn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vintec.com.vn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vintec.com.vn\/vi\/wp-json\/wp\/v2\/comments?post=5288"}],"version-history":[{"count":0,"href":"https:\/\/vintec.com.vn\/vi\/wp-json\/wp\/v2\/posts\/5288\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vintec.com.vn\/vi\/wp-json\/wp\/v2\/media\/5290"}],"wp:attachment":[{"href":"https:\/\/vintec.com.vn\/vi\/wp-json\/wp\/v2\/media?parent=5288"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vintec.com.vn\/vi\/wp-json\/wp\/v2\/categories?post=5288"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vintec.com.vn\/vi\/wp-json\/wp\/v2\/tags?post=5288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"l\u01b0u](\"http:\/\/139.180.194.18:8999\/wp-content\/uploads\/2022\/10\/Screen-Shot-2022-10-01-at-20.30.28-931x1024.png\")
![\"\"](\"http:\/\/139.180.194.18:8999\/wp-content\/uploads\/2022\/10\/Screen-Shot-2022-10-01-at-20.33.45-1024x530.png\")
![\"\"](\"http:\/\/139.180.194.18:8999\/wp-content\/uploads\/2022\/10\/Screen-Shot-2022-10-01-at-20.34.30-1024x532.png\")
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Nhi\u1ec1u lo\u1ea1i trong s\u1ed1 c\u00e1c thi\u1ebft b\u1ecb r\u01a1 le l\u01b0u l\u01b0\u1ee3ng (kh\u00f3a chuy\u1ec3n m\u1ea1ch) lu\u00f4n c\u00f3 s\u1eb5n. V\u00ed d\u1ee5, FCI FlexSwitch \u00ae FLT Series<\/a> v\u1edbi thi\u1ebft k\u1ebf kh\u00f4ng c\u00f3 ph\u1ea7n t\u1eed chuy\u1ec3n \u0111\u1ed9ng (no moving parts design), cung c\u1ea5p m\u1ed9t gi\u1ea3i ph\u00e1p r\u1ea5t m\u1ea1nh \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u00e1y b\u01a1m v\u1edbi kh\u1ea3 n\u0103ng b\u00e1o \u0111\u1ed9ng k\u00e9p (H\u00ecnh 5). V\u1edbi C\u1ea3nh b\u00e1o 1, vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i s\u1ebd ph\u00e1t hi\u1ec7n d\u00f2ng ch\u1ea3y th\u1ea5p b\u1ea5t c\u1ee9 n\u01a1i n\u00e0o trong kho\u1ea3ng c\u00e1ch t\u1eeb 0,01 \u0111\u1ebfn 3 feet\/gi\u00e2y (FPS) (0.003 to.9 MPS m\u00e9t\/gi\u00e2y). \u0110i\u1ec1u n\u00e0y c\u1ea3nh b\u00e1o l\u01b0u l\u01b0\u1ee3ng th\u1ea5p c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t t\u00edn hi\u1ec7u c\u1ea3nh b\u00e1o tr\u01b0\u1edbc cho h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c ng\u01b0\u1eddi v\u1eadn h\u00e0nh. C\u1ea3nh b\u00e1o 2 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t \u1edf t\u00ecnh tr\u1ea1ng kh\u00f4ng c\u00f3 d\u00f2ng ch\u1ea3y. C\u00e1c h\u1ec7 th\u1ed1ng ho\u1eb7c ng\u01b0\u1eddi v\u1eadn h\u00e0nh sau \u0111\u00f3 c\u00f3 th\u1ec3 quy\u1ebft \u0111\u1ecbnh \u0111\u1ec3 gi\u1eef cho m\u00e1y b\u01a1m ti\u1ebfp t\u1ee5c ch\u1ea1y ho\u1eb7c t\u1eaft ch\u00fang.<\/p>\n\n\n\n![\"\"](\"http:\/\/139.180.194.18:8999\/wp-content\/uploads\/2022\/10\/Screen-Shot-2022-10-01-at-20.37.28-1024x671.png\")
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<\/figure>\n\n\n\n
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