<\/span>1. C\u1ea3m bi\u1ebfn \u0111o l\u01b0u l\u01b0\u1ee3ng (Flow Sensor\/Body)<\/span><\/h3>\n\u0110\u00e2y \u0111\u01b0\u1ee3c xem l\u00e0 “tr\u00e1i tim” c\u1ee7a thi\u1ebft b\u1ecb, l\u00e0 b\u1ed9 ph\u1eadn ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi d\u00f2ng ch\u1ea3y c\u1ee7a x\u0103ng d\u1ea7u v\u00e0 th\u1ef1c hi\u1ec7n nhi\u1ec7m v\u1ee5 chuy\u1ec3n \u0111\u1ed5i chuy\u1ec3n \u0111\u1ed9ng ho\u1eb7c \u0111\u1eb7c t\u00ednh c\u1ee7a d\u00f2ng ch\u1ea3y th\u00e0nh m\u1ed9t t\u00edn hi\u1ec7u c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng \u0111\u01b0\u1ee3c. T\u00f9y thu\u1ed9c v\u00e0o c\u00f4ng ngh\u1ec7 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng, c\u1ea5u t\u1ea1o c\u1ee7a c\u1ea3m bi\u1ebfn s\u1ebd kh\u00e1c nhau:<\/p>\n
\n- D\u1ea1ng Turbine:<\/b> B\u00ean trong ch\u1ee9a m\u1ed9t c\u00e1nh qu\u1ea1t (rotor) si\u00eau nh\u1eb9, quay v\u1edbi t\u1ed1c \u0111\u1ed9 t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi t\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y.<\/li>\n
- D\u1ea1ng B\u00e1nh r\u0103ng Oval (Positive Displacement):<\/b> G\u1ed3m hai b\u00e1nh r\u0103ng h\u00ecnh oval \u0103n kh\u1edbp v\u1edbi nhau, m\u1ed7i v\u00f2ng quay s\u1ebd “\u0111ong” m\u1ed9t th\u1ec3 t\u00edch nhi\u00ean li\u1ec7u c\u1ed1 \u0111\u1ecbnh.<\/li>\n
- D\u1ea1ng Si\u00eau \u00e2m:<\/b> S\u1eed d\u1ee5ng c\u00e1c c\u1eb7p c\u1ea3m bi\u1ebfn \u00e1p \u0111i\u1ec7n \u0111\u1ec3 ph\u00e1t v\u00e0 nh\u1eadn s\u00f3ng si\u00eau \u00e2m xuy\u00ean qua d\u00f2ng ch\u1ea3y.<\/li>\n
- D\u1ea1ng Coriolis:<\/b> G\u1ed3m c\u00e1c \u1ed1ng \u0111o dao \u0111\u1ed9ng, bi\u1ebfn d\u1ea1ng d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c Coriolis khi d\u00f2ng ch\u1ea3y \u0111i qua.<\/li>\n<\/ul>\n
V\u1eadt li\u1ec7u ch\u1ebf t\u1ea1o c\u1ea3m bi\u1ebfn th\u01b0\u1eddng l\u00e0 nh\u00f4m, th\u00e9p kh\u00f4ng g\u1ec9 (Inox 304\/316) ho\u1eb7c c\u00e1c v\u1eadt li\u1ec7u composite \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u1ec1n, ch\u1ed1ng \u0103n m\u00f2n v\u00e0 an to\u00e0n trong m\u00f4i tr\u01b0\u1eddng d\u1ec5 ch\u00e1y n\u1ed5.<\/p>\n
<\/span>2. B\u1ed9 vi x\u1eed l\u00fd (Transmitter\/Controller)<\/span><\/h3>\n\u0110\u00e2y l\u00e0 “b\u1ed9 n\u00e3o” c\u1ee7a \u0111\u1ed3ng h\u1ed3, nh\u1eadn t\u00edn hi\u1ec7u th\u00f4 t\u1eeb c\u1ea3m bi\u1ebfn v\u00e0 th\u1ef1c hi\u1ec7n h\u00e0ng lo\u1ea1t c\u00e1c t\u00e1c v\u1ee5 ph\u1ee9c t\u1ea1p:<\/p>\n
\n- X\u1eed l\u00fd t\u00edn hi\u1ec7u:<\/b> L\u1ecdc nhi\u1ec5u, khu\u1ebfch \u0111\u1ea1i v\u00e0 s\u1ed1 h\u00f3a t\u00edn hi\u1ec7u t\u1eeb c\u1ea3m bi\u1ebfn.<\/li>\n
- T\u00ednh to\u00e1n:<\/b> \u00c1p d\u1ee5ng c\u00e1c thu\u1eadt to\u00e1n v\u00e0 h\u1ec7 s\u1ed1 hi\u1ec7u chu\u1ea9n (K-factor) \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u th\u00f4 th\u00e0nh c\u00e1c gi\u00e1 tr\u1ecb l\u01b0u l\u01b0\u1ee3ng ch\u00ednh x\u00e1c (l\u00edt\/ph\u00fat, m\u00b3\/gi\u1edd, kg\/gi\u1edd…).<\/li>\n
- B\u00f9 tr\u1eeb nhi\u1ec7t \u0111\u1ed9 (t\u00f9y ch\u1ecdn):<\/b> M\u1ed9t s\u1ed1 model cao c\u1ea5p c\u00f3 kh\u1ea3 n\u0103ng b\u00f9 tr\u1eeb s\u1ef1 thay \u0111\u1ed5i v\u1ec1 th\u1ec3 t\u00edch c\u1ee7a x\u0103ng d\u1ea7u do nhi\u1ec7t \u0111\u1ed9, gi\u00fap k\u1ebft qu\u1ea3 \u0111o lu\u00f4n ch\u00ednh x\u00e1c theo \u0111i\u1ec1u ki\u1ec7n ti\u00eau chu\u1ea9n.<\/li>\n
- L\u01b0u tr\u1eef d\u1eef li\u1ec7u:<\/b> Ghi nh\u1eadn v\u00e0 l\u01b0u tr\u1eef gi\u00e1 tr\u1ecb l\u01b0u l\u01b0\u1ee3ng t\u1ed5ng (totalizer).<\/li>\n<\/ul>\n
<\/span>3. Giao di\u1ec7n hi\u1ec3n th\u1ecb v\u00e0 xu\u1ea5t t\u00edn hi\u1ec7u (Display & Output Interface)<\/span><\/h3>\n\u0110\u00e2y l\u00e0 ph\u1ea7n k\u1ebft n\u1ed1i gi\u1eefa \u0111\u1ed3ng h\u1ed3 v\u00e0 ng\u01b0\u1eddi d\u00f9ng ho\u1eb7c h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd.<\/p>\n
\n- M\u00e0n h\u00ecnh hi\u1ec3n th\u1ecb LCD:<\/b> Cho ph\u00e9p ng\u01b0\u1eddi v\u1eadn h\u00e0nh \u0111\u1ecdc tr\u1ef1c ti\u1ebfp c\u00e1c th\u00f4ng s\u1ed1 t\u1ea1i ch\u1ed7, bao g\u1ed3m l\u01b0u l\u01b0\u1ee3ng t\u1ee9c th\u1eddi (resettable total) v\u00e0 l\u01b0u l\u01b0\u1ee3ng t\u1ed5ng t\u00edch l\u0169y (non-resettable total).<\/li>\n
- Ng\u00f5 ra t\u00edn hi\u1ec7u (Output):<\/b> \u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 l\u00e0m n\u00ean s\u1ef1 “\u0111i\u1ec7n t\u1eed” v\u00e0 “th\u00f4ng minh” c\u1ee7a thi\u1ebft b\u1ecb. C\u00e1c ng\u00f5 ra ph\u1ed5 bi\u1ebfn bao g\u1ed3m:\n
\n- T\u00edn hi\u1ec7u xung (Pulse):<\/b> M\u1ed7i xung t\u01b0\u01a1ng \u1ee9ng v\u1edbi m\u1ed9t \u0111\u01a1n v\u1ecb th\u1ec3 t\u00edch (v\u00ed d\u1ee5: 100 xung\/l\u00edt), d\u00f9ng \u0111\u1ec3 k\u1ebft n\u1ed1i v\u1edbi c\u00e1c b\u1ed9 \u0111\u1ebfm ho\u1eb7c PLC.<\/li>\n
- T\u00edn hi\u1ec7u analog 4-20mA:<\/b> Bi\u1ec3u di\u1ec5n d\u1ea3i l\u01b0u l\u01b0\u1ee3ng t\u1eeb 0-100% b\u1eb1ng d\u00f2ng \u0111i\u1ec7n 4-20mA, m\u1ed9t chu\u1ea9n c\u00f4ng nghi\u1ec7p ph\u1ed5 bi\u1ebfn \u0111\u1ec3 t\u00edch h\u1ee3p v\u00e0o h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n.<\/li>\n
- Giao th\u1ee9c truy\u1ec1n th\u00f4ng s\u1ed1 (RS485\/Modbus, HART):<\/b> Cho ph\u00e9p truy\u1ec1n d\u1eef li\u1ec7u hai chi\u1ec1u, kh\u00f4ng ch\u1ec9 \u0111\u1ecdc gi\u00e1 tr\u1ecb l\u01b0u l\u01b0\u1ee3ng m\u00e0 c\u00f2n c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh, ch\u1ea9n \u0111o\u00e1n l\u1ed7i thi\u1ebft b\u1ecb t\u1eeb xa, t\u00edch h\u1ee3p ho\u00e0n to\u00e0n v\u00e0o h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd nhi\u00ean li\u1ec7u (Fuel Management System) ho\u1eb7c SCADA\u00b2.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n
<\/span>Ph\u00e2n Lo\u1ea1i C\u00e1c C\u00f4ng Ngh\u1ec7 \u0110\u1ed3ng H\u1ed3 \u0110o L\u01b0u L\u01b0\u1ee3ng X\u0103ng D\u1ea7u Ph\u1ed5 Bi\u1ebfn<\/span><\/h2>\nM\u1ed7i c\u00f4ng ngh\u1ec7 \u0111o l\u01b0\u1eddng \u0111\u1ec1u c\u00f3 nh\u1eefng th\u1ebf m\u1ea1nh ri\u00eang, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c k\u1ecbch b\u1ea3n \u1ee9ng d\u1ee5ng kh\u00e1c nhau. Vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang c\u00f4ng ngh\u1ec7 s\u1ebd quy\u1ebft \u0111\u1ecbnh \u0111\u1ebfn hi\u1ec7u qu\u1ea3 v\u00e0 chi ph\u00ed \u0111\u1ea7u t\u01b0.<\/p>\n
<\/span>1. \u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng d\u1ea1ng Turbine (Turbine Flow Meter)<\/span><\/h3>\n\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng c\u00f4ng ngh\u1ec7 ph\u1ed5 bi\u1ebfn nh\u1ea5t nh\u1edd s\u1ef1 c\u00e2n b\u1eb1ng tuy\u1ec7t v\u1eddi gi\u1eefa \u0111\u1ed9 ch\u00ednh x\u00e1c, chi ph\u00ed v\u00e0 k\u00edch th\u01b0\u1edbc nh\u1ecf g\u1ecdn.<\/p>\n
<\/span>\u00a0Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<\/span><\/h4>\nKhi x\u0103ng ho\u1eb7c d\u1ea7u ch\u1ea3y qua th\u00e2n \u0111\u1ed3ng h\u1ed3, n\u00f3 s\u1ebd l\u00e0m quay m\u1ed9t rotor c\u00f3 nhi\u1ec1u c\u00e1nh (tuabin). T\u1ed1c \u0111\u1ed9 quay c\u1ee7a rotor t\u1ef7 l\u1ec7 thu\u1eadn tr\u1ef1c ti\u1ebfp v\u1edbi v\u1eadn t\u1ed1c c\u1ee7a d\u00f2ng ch\u1ea3y. M\u1ed9t c\u1ea3m bi\u1ebfn t\u1eeb t\u00ednh (magnetic pickup) g\u1eafn b\u00ean ngo\u00e0i s\u1ebd \u0111\u1ebfm s\u1ed1 l\u1ea7n c\u00e1nh qu\u1ea1t \u0111i qua, t\u1ea1o ra m\u1ed9t chu\u1ed7i t\u00edn hi\u1ec7u xung. B\u1ed9 vi x\u1eed l\u00fd s\u1ebd \u0111\u1ebfm s\u1ed1 xung n\u00e0y v\u00e0 t\u00ednh to\u00e1n ra l\u01b0u l\u01b0\u1ee3ng.<\/p>\n
<\/span>\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<\/span><\/h4>\n\n- \u0110\u1ed9 ch\u00ednh x\u00e1c cao:<\/b> Th\u01b0\u1eddng \u0111\u1ea1t t\u1edbi \u00b10.25% \u0111\u1ebfn \u00b10.5% gi\u00e1 tr\u1ecb \u0111o, r\u1ea5t ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng giao nh\u1eadn, c\u1ea5p ph\u00e1t c\u1ea7n s\u1ef1 minh b\u1ea1ch\u00b3.<\/li>\n
- Ph\u1ea3n h\u1ed3i nhanh:<\/b> G\u1ea7n nh\u01b0 ngay l\u1eadp t\u1ee9c ph\u1ea3n \u1ee9ng v\u1edbi s\u1ef1 thay \u0111\u1ed5i c\u1ee7a d\u00f2ng ch\u1ea3y, l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng chi\u1ebft r\u00f3t, \u0111\u00f3ng m\u1ebb (batching).<\/li>\n
- Thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn, tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9.<\/b><\/li>\n
- Chi ph\u00ed \u0111\u1ea7u t\u01b0 h\u1ee3p l\u00fd.<\/b><\/li>\n<\/ul>\n
<\/span>Nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 l\u01b0u \u00fd khi s\u1eed d\u1ee5ng<\/span><\/h4>\n\n- Nh\u1ea1y c\u1ea3m v\u1edbi c\u1eb7n b\u1ea9n:<\/b> C\u00e1c h\u1ea1t r\u1eafn trong nhi\u00ean li\u1ec7u c\u00f3 th\u1ec3 l\u00e0m m\u00e0i m\u00f2n ho\u1eb7c k\u1eb9t \u1ed5 bi c\u1ee7a rotor, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 tu\u1ed5i th\u1ecd. Do \u0111\u00f3, vi\u1ec7c l\u1eafp \u0111\u1eb7t m\u1ed9t b\u1ed9 l\u1ecdc (strainer) \u1edf tr\u01b0\u1edbc \u0111\u1ed3ng h\u1ed3 l\u00e0 b\u1eaft bu\u1ed9c.<\/li>\n
- Y\u00eau c\u1ea7u \u0111o\u1ea1n \u1ed1ng th\u1eb3ng:<\/b> C\u1ea7n m\u1ed9t \u0111o\u1ea1n \u1ed1ng th\u1eb3ng \u1edf \u0111\u1ea7u v\u00e0o (th\u01b0\u1eddng l\u00e0 10 l\u1ea7n \u0111\u01b0\u1eddng k\u00ednh \u1ed1ng) v\u00e0 \u0111\u1ea7u ra (5 l\u1ea7n \u0111\u01b0\u1eddng k\u00ednh \u1ed1ng) \u0111\u1ec3 d\u00f2ng ch\u1ea3y \u1ed5n \u0111\u1ecbnh, \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u00ednh x\u00e1c.<\/li>\n<\/ul>\n
<\/span>K\u1ecbch b\u1ea3n \u1ee9ng d\u1ee5ng l\u00fd t\u01b0\u1edfng<\/span><\/h4>\n\n- L\u1eafp \u0111\u1eb7t tr\u00ean xe b\u1ed3n, xitec ch\u1edf x\u0103ng d\u1ea7u \u0111\u1ec3 giao nh\u1eadn cho kh\u00e1ch h\u00e0ng.<\/li>\n
- T\u1ea1i c\u00e1c tr\u1ea1m b\u01a1m, tr\u1ee5 b\u01a1m c\u1ea5p ph\u00e1t nhi\u00ean li\u1ec7u n\u1ed9i b\u1ed9 cho \u0111\u1ed9i xe v\u1eadn t\u1ea3i, m\u00e1y c\u00f4ng tr\u00ecnh.<\/li>\n
- Gi\u00e1m s\u00e1t l\u01b0\u1ee3ng d\u1ea7u diesel ti\u00eau th\u1ee5 c\u1ee7a m\u00e1y ph\u00e1t \u0111i\u1ec7n, l\u00f2 h\u01a1i.<\/li>\n<\/ul>\n
<\/span>2. \u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng d\u1ea1ng B\u00e1nh r\u0103ng Oval (Positive Displacement – PD)<\/span><\/h3>\nC\u00f4ng ngh\u1ec7 PD, \u0111\u1eb7c bi\u1ec7t l\u00e0 lo\u1ea1i b\u00e1nh r\u0103ng oval, l\u00e0 “nh\u00e0 v\u00f4 \u0111\u1ecbch” khi n\u00f3i \u0111\u1ebfn vi\u1ec7c \u0111o c\u00e1c d\u00f2ng ch\u1ea3y c\u00f3 l\u01b0u l\u01b0\u1ee3ng th\u1ea5p v\u00e0 \u0111\u1ed9 nh\u1edbt cao.<\/p>\n
<\/span>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<\/span><\/h4>\nB\u00ean trong bu\u1ed3ng \u0111o l\u00e0 m\u1ed9t c\u1eb7p b\u00e1nh r\u0103ng h\u00ecnh oval \u0103n kh\u1edbp ch\u00ednh x\u00e1c v\u1edbi nhau. D\u00f2ng nhi\u00ean li\u1ec7u ch\u1ea3y v\u00e0o s\u1ebd l\u00e0m quay c\u1eb7p b\u00e1nh r\u0103ng n\u00e0y. Trong m\u1ed7i v\u00f2ng quay, m\u1ed9t l\u01b0\u1ee3ng th\u1ec3 t\u00edch nhi\u00ean li\u1ec7u c\u1ed1 \u0111\u1ecbnh v\u00e0 \u0111\u00e3 bi\u1ebft tr\u01b0\u1edbc s\u1ebd \u0111\u01b0\u1ee3c “nh\u1ed1t” trong kho\u1ea3ng tr\u1ed1ng gi\u1eefa b\u00e1nh r\u0103ng v\u00e0 th\u00e0nh bu\u1ed3ng \u0111o, sau \u0111\u00f3 \u0111\u01b0\u1ee3c \u0111\u1ea9y ra ngo\u00e0i. B\u1eb1ng c\u00e1ch \u0111\u1ebfm s\u1ed1 v\u00f2ng quay c\u1ee7a b\u00e1nh r\u0103ng, \u0111\u1ed3ng h\u1ed3 c\u00f3 th\u1ec3 t\u00ednh to\u00e1n ch\u00ednh x\u00e1c t\u1ed5ng l\u01b0u l\u01b0\u1ee3ng \u0111\u00e3 \u0111i qua.<\/p>\n
<\/span>\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<\/span><\/h4>\n\n- \u0110\u1ed9 ch\u00ednh x\u00e1c cao v\u00e0 \u1ed5n \u0111\u1ecbnh (\u00b10.5%):<\/b> Ho\u1ea1t \u0111\u1ed9ng t\u1ed1t ngay c\u1ea3 \u1edf nh\u1eefng d\u1ea3i l\u01b0u l\u01b0\u1ee3ng r\u1ea5t th\u1ea5p m\u00e0 \u0111\u1ed3ng h\u1ed3 turbine kh\u00f4ng \u0111o \u0111\u01b0\u1ee3c\u2074.<\/li>\n
- Kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi \u0111\u1ed9 nh\u1edbt c\u1ee7a nhi\u00ean li\u1ec7u:<\/b> C\u00f3 th\u1ec3 \u0111o ch\u00ednh x\u00e1c t\u1eeb x\u0103ng, d\u1ea7u diesel cho \u0111\u1ebfn c\u00e1c lo\u1ea1i d\u1ea7u FO, d\u1ea7u b\u00f4i tr\u01a1n c\u00f3 \u0111\u1ed9 nh\u1edbt cao.<\/li>\n
- Kh\u00f4ng y\u00eau c\u1ea7u \u0111o\u1ea1n \u1ed1ng th\u1eb3ng:<\/b> C\u00f3 th\u1ec3 l\u1eafp \u0111\u1eb7t \u1edf nh\u1eefng kh\u00f4ng gian ch\u1eadt h\u1eb9p.<\/li>\n<\/ul>\n
<\/span>Nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 l\u01b0u \u00fd khi s\u1eed d\u1ee5ng<\/span><\/h4>\n\n- C\u00f3 b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng:<\/b> Nh\u1ea1y c\u1ea3m v\u1edbi c\u1eb7n r\u1eafn, c\u00f3 th\u1ec3 g\u00e2y k\u1eb9t b\u00e1nh r\u0103ng. Vi\u1ec7c l\u1eafp \u0111\u1eb7t b\u1ed9 l\u1ecdc l\u00e0 c\u1ef1c k\u1ef3 quan tr\u1ecdng.<\/li>\n
- G\u00e2y s\u1ee5t \u00e1p l\u1edbn h\u01a1n<\/b> so v\u1edbi \u0111\u1ed3ng h\u1ed3 turbine.<\/li>\n
- K\u00edch th\u01b0\u1edbc l\u1edbn v\u00e0 n\u1eb7ng h\u01a1n<\/b> \u1edf c\u00f9ng m\u1ed9t size \u1ed1ng.<\/li>\n<\/ul>\n
<\/span>K\u1ecbch b\u1ea3n \u1ee9ng d\u1ee5ng l\u00fd t\u01b0\u1edfng<\/span><\/h4>\n\n- \u0110o l\u01b0\u1eddng, c\u00e2n \u0111\u1ed1i l\u01b0\u1ee3ng nhi\u00ean li\u1ec7u trong c\u00e1c h\u1ec7 th\u1ed1ng b\u01a1m \u0111\u1ed5 cho t\u1eebng xe t\u1ea1i b\u00e3i xe, c\u00f4ng tr\u01b0\u1eddng.<\/li>\n
- C\u00e1c \u1ee9ng d\u1ee5ng chi\u1ebft r\u00f3t d\u1ea7u nh\u1edbt, h\u00f3a ch\u1ea5t g\u1ed1c d\u1ea7u.<\/li>\n
- \u0110o d\u1ea7u FO (Fuel Oil) cho c\u00e1c l\u00f2 \u0111\u1ed1t c\u00f4ng nghi\u1ec7p.<\/li>\n<\/ul>\n
<\/span>3. \u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng d\u1ea1ng Si\u00eau \u00e2m (Ultrasonic Flow Meter)<\/span><\/h3>\n\u0110\u00e2y l\u00e0 c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i, mang l\u1ea1i s\u1ef1 linh ho\u1ea1t v\u00e0 \u0111\u1ed9 tin c\u1eady cao, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi kh\u1ea3 n\u0103ng \u0111o kh\u00f4ng x\u00e2m l\u1ea5n.<\/p>\n
<\/span>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<\/span><\/h4>\nM\u1ed9t c\u1eb7p c\u1ea3m bi\u1ebfn si\u00eau \u00e2m \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t tr\u00ean \u0111\u01b0\u1eddng \u1ed1ng (c\u00f3 th\u1ec3 k\u1eb9p b\u00ean ngo\u00e0i – clamp-on, ho\u1eb7c l\u1eafp s\u1eb5n b\u00ean trong – inline). M\u1ed9t c\u1ea3m bi\u1ebfn s\u1ebd ph\u00e1t ra m\u1ed9t xung si\u00eau \u00e2m \u0111i xi\u00ean qua d\u00f2ng ch\u1ea3y \u0111\u1ebfn c\u1ea3m bi\u1ebfn c\u00f2n l\u1ea1i. Sau \u0111\u00f3, qu\u00e1 tr\u00ecnh \u0111\u1ea3o ng\u01b0\u1ee3c. Th\u1eddi gian \u0111\u1ec3 s\u00f3ng si\u00eau \u00e2m \u0111i xu\u00f4i d\u00f2ng s\u1ebd nhanh h\u01a1n th\u1eddi gian \u0111i ng\u01b0\u1ee3c d\u00f2ng. B\u1ed9 vi x\u1eed l\u00fd s\u1ebd \u0111o l\u01b0\u1eddng s\u1ef1 ch\u00eanh l\u1ec7ch c\u1ef1c nh\u1ecf v\u1ec1 th\u1eddi gian n\u00e0y (t\u00ednh b\u1eb1ng nano gi\u00e2y) v\u00e0 t\u1eeb \u0111\u00f3 t\u00ednh to\u00e1n ra v\u1eadn t\u1ed1c c\u1ee7a d\u00f2ng ch\u1ea3y\u2075.<\/p>\n
<\/span>\u00a0\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<\/span><\/h4>\n\n- Kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng, kh\u00f4ng ti\u1ebfp x\u00fac v\u1edbi nhi\u00ean li\u1ec7u (lo\u1ea1i clamp-on):<\/b> Ho\u00e0n to\u00e0n kh\u00f4ng b\u1ecb m\u00e0i m\u00f2n, kh\u00f4ng g\u00e2y s\u1ee5t \u00e1p, kh\u00f4ng c\u1ea7n b\u1ea3o tr\u00ec c\u01a1 kh\u00ed.<\/li>\n
- L\u1eafp \u0111\u1eb7t d\u1ec5 d\u00e0ng (lo\u1ea1i clamp-on):<\/b> Ch\u1ec9 c\u1ea7n k\u1eb9p b\u00ean ngo\u00e0i th\u00e0nh \u1ed1ng, kh\u00f4ng c\u1ea7n c\u1eaft \u1ed1ng hay d\u1eebng h\u1ec7 th\u1ed1ng, \u0111\u1ea3m b\u1ea3o an to\u00e0n t\u1ed1i \u0111a.<\/li>\n
- L\u00fd t\u01b0\u1edfng cho \u0111\u01b0\u1eddng \u1ed1ng l\u1edbn:<\/b> L\u00e0 gi\u1ea3i ph\u00e1p kinh t\u1ebf v\u00e0 kh\u1ea3 thi nh\u1ea5t cho c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng d\u1eabn x\u0103ng d\u1ea7u trung t\u00e2m c\u00f3 k\u00edch th\u01b0\u1edbc l\u1edbn.<\/li>\n<\/ul>\n
<\/span>Nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 l\u01b0u \u00fd khi s\u1eed d\u1ee5ng<\/span><\/h4>\n\n- \u0110\u1ed9 ch\u00ednh x\u00e1c th\u1ea5p h\u01a1n:<\/b> Th\u01b0\u1eddng trong kho\u1ea3ng \u00b11% \u0111\u1ebfn \u00b12%, ph\u00f9 h\u1ee3p cho c\u00e1c \u1ee9ng d\u1ee5ng gi\u00e1m s\u00e1t t\u1ed5ng th\u1ec3, ki\u1ec3m to\u00e1n n\u1ed9i b\u1ed9 h\u01a1n l\u00e0 giao nh\u1eadn th\u01b0\u01a1ng m\u1ea1i.<\/li>\n
- Chi ph\u00ed \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u cao h\u01a1n<\/b> so v\u1edbi turbine v\u00e0 PD.<\/li>\n<\/ul>\n
<\/span>K\u1ecbch b\u1ea3n \u1ee9ng d\u1ee5ng l\u00fd t\u01b0\u1edfng<\/span><\/h4>\n\n- \u0110o l\u01b0\u1eddng t\u1ed5ng l\u01b0u l\u01b0\u1ee3ng nhi\u00ean li\u1ec7u trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng ch\u00ednh t\u1ea1i kho c\u1ea3ng, nh\u00e0 m\u00e1y l\u1ecdc d\u1ea7u.<\/li>\n
- C\u00e1c \u1ee9ng d\u1ee5ng c\u1ea7n gi\u00e1m s\u00e1t l\u01b0u l\u01b0\u1ee3ng t\u1ea1m th\u1eddi ho\u1eb7c kh\u00f4ng th\u1ec3 d\u1eebng h\u1ec7 th\u1ed1ng \u0111\u1ec3 l\u1eafp \u0111\u1eb7t.<\/li>\n
- \u0110o tr\u00ean c\u00e1c \u0111\u01b0\u1eddng \u1ed1ng c\u00f3 \u00e1p su\u1ea5t r\u1ea5t cao.<\/li>\n<\/ul>\n
<\/span>4. \u0110\u1ed3ng h\u1ed3 \u0111o l\u01b0u l\u01b0\u1ee3ng kh\u1ed1i l\u01b0\u1ee3ng Coriolis (Coriolis Mass Flow Meter)<\/span><\/h3>\nKhi y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 ch\u00ednh x\u00e1c l\u00e0 tuy\u1ec7t \u0111\u1ed1i v\u00e0 c\u1ea7n \u0111o nhi\u1ec1u th\u00f4ng s\u1ed1 c\u00f9ng l\u00fac, Coriolis l\u00e0 c\u00f4ng ngh\u1ec7 \u0111\u1ec9nh cao.<\/p>\n
<\/span>Nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng chi ti\u1ebft<\/span><\/h4>\nD\u00f2ng nhi\u00ean li\u1ec7u \u0111\u01b0\u1ee3c d\u1eabn qua m\u1ed9t ho\u1eb7c hai \u1ed1ng \u0111o h\u00ecnh ch\u1eef U (ho\u1eb7c d\u1ea1ng th\u1eb3ng) \u0111\u01b0\u1ee3c l\u00e0m cho dao \u0111\u1ed9ng \u1edf t\u1ea7n s\u1ed1 t\u1ef1 nhi\u00ean. Khi nhi\u00ean li\u1ec7u ch\u1ea3y qua, hi\u1ec7u \u1ee9ng Coriolis l\u00e0m cho c\u00e1c \u1ed1ng n\u00e0y b\u1ecb xo\u1eafn nh\u1eb9. C\u00e1c c\u1ea3m bi\u1ebfn quang h\u1ecdc ho\u1eb7c \u0111i\u1ec7n t\u1eeb s\u1ebd \u0111o l\u01b0\u1eddng \u0111\u1ed9 l\u1ec7ch pha trong dao \u0111\u1ed9ng gi\u1eefa \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u1ee7a \u1ed1ng. \u0110\u1ed9 l\u1ec7ch pha n\u00e0y t\u1ef7 l\u1ec7 thu\u1eadn tr\u1ef1c ti\u1ebfp v\u1edbi l\u01b0u l\u01b0\u1ee3ng kh\u1ed1i l\u01b0\u1ee3ng<\/b> c\u1ee7a nhi\u00ean li\u1ec7u.<\/p>\n<\/span>\u01afu \u0111i\u1ec3m v\u01b0\u1ee3t tr\u1ed9i<\/span><\/h4>\n\n- \u0110\u1ed9 ch\u00ednh x\u00e1c cao nh\u1ea5t th\u1ecb tr\u01b0\u1eddng:<\/b> \u0110\u1ea1t \u0111\u1ebfn \u00b10.1% ho\u1eb7c th\u1eadm ch\u00ed \u00b10.05% v\u1edbi c\u00e1c phi\u00ean b\u1ea3n \u0111\u1eb7c bi\u1ec7t\u2076. \u0110\u00e2y l\u00e0 ti\u00eau chu\u1ea9n v\u00e0ng cho c\u00e1c giao d\u1ecbch th\u01b0\u01a1ng m\u1ea1i gi\u00e1 tr\u1ecb cao.<\/li>\n
- \u0110o tr\u1ef1c ti\u1ebfp kh\u1ed1i l\u01b0\u1ee3ng (kg, t\u1ea5n):<\/b> Lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n sai s\u1ed1 do s\u1ef1 thay \u0111\u1ed5i t\u1ef7 tr\u1ecdng c\u1ee7a nhi\u00ean li\u1ec7u theo nhi\u1ec7t \u0111\u1ed9. “M\u1ed9t kilogram h\u00f4m nay v\u1eabn l\u00e0 m\u1ed9t kilogram ng\u00e0y mai”.<\/li>\n
- \u0110o \u0111a th\u00f4ng s\u1ed1:<\/b> Cung c\u1ea5p \u0111\u1ed3ng th\u1eddi d\u1eef li\u1ec7u v\u1ec1 l\u01b0u l\u01b0\u1ee3ng kh\u1ed1i l\u01b0\u1ee3ng, l\u01b0u l\u01b0\u1ee3ng th\u1ec3 t\u00edch, t\u1ef7 tr\u1ecdng v\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a nhi\u00ean li\u1ec7u ch\u1ec9 v\u1edbi m\u1ed9t thi\u1ebft b\u1ecb duy nh\u1ea5t.<\/li>\n
- Kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn chuy\u1ec3n \u0111\u1ed9ng, kh\u00f4ng y\u00eau c\u1ea7u \u1ed1ng th\u1eb3ng.<\/b><\/li>\n<\/ul>\n
<\/span>Nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 l\u01b0u \u00fd khi s\u1eed d\u1ee5ng<\/span><\/h4>\n