{"id":8286,"date":"2026-05-27T16:35:18","date_gmt":"2026-05-27T16:35:18","guid":{"rendered":"https:\/\/www.yunrui-controls.com\/?p=8286"},"modified":"2026-05-27T16:35:18","modified_gmt":"2026-05-27T16:35:18","slug":"lng-valve-positioner-selection","status":"publish","type":"post","link":"https:\/\/www.yunrui-controls.com\/vi\/lng-valve-positioner-selection\/","title":{"rendered":"L\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb \u0111\u1ecbnh v\u1ecb van LNG: Tr\u00e1nh t\u1ed5n th\u1ea5t v\u1ec1 an to\u00e0n v\u00e0 t\u00e0i ch\u00ednh"},"content":{"rendered":"
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L\u1ef1a ch\u1ecdn b\u1ed9 \u0111\u1ecbnh v\u1ecb van ph\u00f9 h\u1ee3p cho \u1ee9ng d\u1ee5ng LNG<\/h1>\n

Tr\u00e1nh r\u1ee7i ro v\u1ec1 an to\u00e0n v\u00e0 t\u1ed5n th\u1ea5t t\u00e0i ch\u00ednh b\u1eb1ng c\u00e1ch l\u1ef1a ch\u1ecdn \u0111\u00fang \u0111\u1eafn.<\/p>\n<\/div>\n

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\u26a0\ufe0f L\u01b0u \u00fd quan tr\u1ecdng<\/h3>\n

Vi\u1ec7c l\u1ef1a ch\u1ecdn b\u1ed9 \u0111\u1ecbnh v\u1ecb van kh\u00f4ng ph\u00f9 h\u1ee3p cho c\u00e1c c\u01a1 s\u1edf LNG c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn: t\u1ed5n th\u1ea5t k\u00e9p<\/strong> \u2013 l\u00e0m t\u1ed5n h\u1ea1i c\u1ea3 hai s\u1ef1 an to\u00e0n<\/strong> V\u00e0 chi ph\u00ed v\u1eadn h\u00e0nh<\/strong>. H\u01b0\u1edbng d\u1eabn n\u00e0y gi\u1ea3i th\u00edch c\u00e1c ti\u00eau ch\u00ed l\u1ef1a ch\u1ecdn quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea1t hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.<\/p>\n<\/div>\n

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C\u00e1c c\u01a1 s\u1edf v\u00e0 \u0111\u01b0\u1eddng \u1ed1ng d\u1eabn kh\u00ed LNG d\u1ef1a v\u00e0o b\u1ed9 \u0111\u1ecbnh v\u1ecb van \u0111\u1ec3 cung c\u1ea5p kh\u1ea3 n\u0103ng ki\u1ec3m so\u00e1t d\u00f2ng ch\u1ea3y ch\u00ednh x\u00e1c v\u00e0 \u0111\u00e1ng tin c\u1eady. B\u1ed9 \u0111\u1ecbnh v\u1ecb van li\u00ean t\u1ee5c \u0111i\u1ec1u ch\u1ec9nh van \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o v\u1ecb tr\u00ed th\u1ef1c t\u1ebf c\u1ee7a van kh\u1edbp v\u1edbi \u0111i\u1ec3m \u0111\u1eb7t trong \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh thay \u0111\u1ed5i li\u00ean t\u1ee5c. B\u1ed9 \u0111\u1ecbnh v\u1ecb van th\u00f4ng minh<\/strong> Cung c\u1ea5p \u0111\u1ed9 ch\u00ednh x\u00e1c \u0111\u1ecbnh v\u1ecb cao h\u01a1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ea9n \u0111o\u00e1n ti\u00ean ti\u1ebfn.<\/p>\n

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T\u1ea1i sao h\u1ec7 th\u1ed1ng \u0111\u1ecbnh v\u1ecb th\u00f4ng minh l\u1ea1i quan tr\u1ecdng trong ng\u00e0nh LNG?<\/h2>\n
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Ng\u0103n ng\u1eeba r\u00f2 r\u1ec9<\/h3>\n

C\u00e1c thi\u1ebft k\u1ebf c\u00f3 h\u1ec7 th\u1ed1ng x\u1ea3 kh\u00ed th\u1ea5p gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 l\u01b0\u1ee3ng kh\u00ed th\u1ea3i, ti\u1ebft ki\u1ec7m chi ph\u00ed \u0111\u00e1ng k\u1ec3, \u0111\u1eb7c bi\u1ec7t khi s\u1eed d\u1ee5ng kh\u00ed t\u1ef1 nhi\u00ean l\u00e0m m\u00f4i ch\u1ea5t cung c\u1ea5p.<\/p>\n<\/div>\n

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\u0110i\u1ec1u khi\u1ec3n ch\u00ednh x\u00e1c<\/h3>\n

C\u00e1c c\u1ea3m bi\u1ebfn v\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed ti\u00ean ti\u1ebfn \u0111\u1ea3m b\u1ea3o c\u00e1c van l\u1edbn \u0111\u1ea1t \u0111\u01b0\u1ee3c v\u1ecb tr\u00ed \u0111\u00e3 \u0111\u1ecbnh b\u1ea5t ch\u1ea5p nhi\u1ec1u nhi\u1ec5u \u0111\u1ed9ng kh\u00e1c nhau.<\/p>\n<\/div>\n

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Ch\u1ea9n \u0111o\u00e1n<\/h3>\n

Vi\u1ec7c gi\u00e1m s\u00e1t li\u00ean t\u1ee5c c\u00e1c th\u00f4ng s\u1ed1 van gi\u00fap ph\u00e1t hi\u1ec7n s\u1ef1 c\u1ed1 tr\u01b0\u1edbc khi hi\u1ec7u su\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ecb \u1ea3nh h\u01b0\u1edfng.<\/p>\n<\/div>\n<\/div>\n

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C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 \u0111\u1ecbnh v\u1ecb van<\/h2>\n

H\u1ea7u h\u1ebft c\u00e1c b\u1ed9 \u0111\u1ecbnh v\u1ecb van s\u1eed d\u1ee5ng k\u1ebft n\u1ed1i c\u01a1 kh\u00ed \u2013 \u0111i\u1ec3n h\u00ecnh l\u00e0 m\u1ed9t c\u1ea7n ph\u1ea3n h\u1ed3i \u0111\u01b0\u1ee3c li\u00ean k\u1ebft v\u1edbi b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u1ecb tr\u00ed van theo th\u1eddi gian th\u1ef1c. Khi ph\u00e1t hi\u1ec7n sai l\u1ec7ch, b\u1ed9 \u0111\u1ecbnh v\u1ecb s\u1ebd so s\u00e1nh \u0111i\u1ec3m \u0111\u1eb7t v\u1edbi v\u1ecb tr\u00ed van th\u1ef1c t\u1ebf v\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u00e1p su\u1ea5t kh\u00ed n\u00e9n c\u1ee7a b\u1ed9 truy\u1ec1n \u0111\u1ed9ng \u0111\u1ec3 di chuy\u1ec3n van \u0111\u1ebfn v\u1ecb tr\u00ed ch\u00ednh x\u00e1c.<\/p>\n

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Th\u1eed th\u00e1ch ti\u00eau th\u1ee5 kh\u00f4ng kh\u00ed<\/h4>\n

Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh van, c\u00e1c b\u1ed9 \u0111\u1ecbnh v\u1ecb li\u00ean t\u1ee5c ti\u00eau th\u1ee5 kh\u00f4ng kh\u00ed. B\u1ed9 \u0111\u1ecbnh v\u1ecb \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t v\u1edbi kh\u1ea3 n\u0103ng gi\u1ea3m thi\u1ec3u r\u00f2 r\u1ec9.<\/strong> Gi\u1ea3m \u0111\u00e1ng k\u1ec3 l\u01b0\u1ee3ng kh\u00ed th\u1ea3i, ti\u1ebft ki\u1ec7m chi ph\u00ed \u0111\u00e1ng k\u1ec3 \u2013 \u0111i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng khi s\u1eed d\u1ee5ng kh\u00ed t\u1ef1 nhi\u00ean thay v\u00ec kh\u00f4ng kh\u00ed l\u00e0m m\u00f4i ch\u1ea5t cung c\u1ea5p.<\/p>\n<\/div>\n

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Gi\u1ea3i ph\u00e1p n\u1ed5i b\u1eadt: Fisher FIELDVUE\u2122 DVC7K<\/h3>\n

C\u00e1c b\u1ed9 \u0111\u1ecbnh v\u1ecb van th\u00f4ng minh nh\u01b0... Fisher FIELDVUE\u2122 DVC7K<\/strong><\/a> <\/span>S\u1eed d\u1ee5ng nhi\u1ec1u lo\u1ea1i c\u1ea3m bi\u1ebfn v\u00e0 linh ki\u1ec7n \u0111i\u1ec7n t\u1eed \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u00e1c van l\u1edbn \u0111\u1ea1t \u0111\u01b0\u1ee3c v\u1ecb tr\u00ed \u0111\u00e3 \u0111\u1ecbnh trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n nhi\u1ec5u lo\u1ea1n kh\u00e1c nhau.<\/p>\n

Xem c\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a Fisher \u2192<\/a><\/span><\/p>\n<\/div>\n

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So s\u00e1nh c\u00e1c lo\u1ea1i thi\u1ebft b\u1ecb \u0111\u1ecbnh v\u1ecb<\/h2>\n\n\n\n\n\n\n\n
Ki\u1ec3u<\/th>\nThu\u1eadn l\u1ee3i<\/th>\nH\u1ea1n ch\u1ebf<\/th>\n<\/tr>\n<\/thead>\n
Van cu\u1ed9n<\/td>\nThi\u1ebft k\u1ebf \u0111\u00e3 \u0111\u01b0\u1ee3c ch\u1ee9ng minh, s\u1eed d\u1ee5ng qua nhi\u1ec1u th\u1eadp k\u1ef7.<\/td>\nNh\u1ea1y c\u1ea3m v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng kh\u00f4ng kh\u00ed, ph\u1ea3n h\u1ed3i ch\u1eadm h\u01a1n.<\/td>\n<\/tr>\n
\u00c1p \u0111i\u1ec7n<\/td>\n\u0110\u1ed9 r\u00f2 r\u1ec9 g\u1ea7n b\u1eb1ng kh\u00f4ng t\u1ea1i c\u00e1c v\u1ecb tr\u00ed c\u1ed1 \u0111\u1ecbnh<\/td>\n\u0110\u1ed9 nh\u1ea1y h\u1ea1n ch\u1ebf \u0111\u1ed1i v\u1edbi nh\u1eefng thay \u0111\u1ed5i t\u00edn hi\u1ec7u nh\u1ecf.<\/td>\n<\/tr>\n
B\u1ed9 khu\u1ebfch \u0111\u1ea1i r\u00f2 r\u1ec9 th\u1ea5p<\/td>\nPh\u00e1t th\u1ea3i t\u1ed1i thi\u1ec3u, ti\u1ebft ki\u1ec7m chi ph\u00ed<\/td>\nCao h\u01a1n m\u1ed9t ch\u00fat so v\u1edbi c\u00e1c thi\u1ebft k\u1ebf kh\u00f4ng ph\u00e1t th\u1ea3i.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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\u0110i\u1ec3m m\u1ea5u ch\u1ed1t:<\/strong> Tr\u00ean th\u1ef1c t\u1ebf, s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 ph\u00e1t x\u1ea1 gi\u1eefa c\u00e1c b\u1ed9 khu\u1ebfch \u0111\u1ea1i c\u00f3 \u0111\u1ed9 r\u00f2 r\u1ec9 th\u1ea5p v\u00e0 c\u00e1c thi\u1ebft k\u1ebf kh\u00f4ng ph\u00e1t x\u1ea1 l\u00e0 r\u1ea5t nh\u1ecf v\u00ec h\u1ea7u h\u1ebft c\u00e1c van \u0111i\u1ec1u khi\u1ec3n ho\u1ea1t \u0111\u1ed9ng \u1edf tr\u1ea1ng th\u00e1i \u0111i\u1ec1u khi\u1ec3n li\u00ean t\u1ee5c.<\/p>\n<\/div>\n

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Ti\u00eau ch\u00ed l\u1ef1a ch\u1ecdn cho c\u00e1c \u1ee9ng d\u1ee5ng LNG<\/h2>\n

Ngo\u00e0i vi\u1ec7c gi\u1ea3m thi\u1ec3u r\u00f2 r\u1ec9, h\u00e3y xem x\u00e9t c\u00e1c y\u1ebfu t\u1ed1 thi\u1ebft k\u1ebf sau \u0111\u1ec3 ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n n\u1eefa:<\/p>\n

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Hi\u1ec7u su\u1ea5t<\/h3>\n

H\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n van \u0111\u1ed9 ch\u00ednh x\u00e1c cao gi\u00fap c\u1ea3i thi\u1ec7n s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a quy tr\u00ecnh v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m.<\/p>\n<\/div>\n

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C\u1ea3m bi\u1ebfn & Ch\u1ea9n \u0111o\u00e1n<\/h3>\n

C\u00e1c thi\u1ebft b\u1ecb \u0111\u1ecbnh v\u1ecb th\u00f4ng minh gi\u00e1m s\u00e1t nhi\u1ec1u th\u00f4ng s\u1ed1 c\u1ee7a van, ph\u00e1t hi\u1ec7n c\u00e1c s\u1ef1 c\u1ed1 tr\u01b0\u1edbc khi hi\u1ec7u su\u1ea5t b\u1ecb suy gi\u1ea3m.<\/p>\n<\/div>\n

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C\u1ea3nh b\u00e1o t\u1eeb xa<\/h3>\n

Kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i tr\u1ef1c tuy\u1ebfn cho ph\u00e9p th\u00f4ng b\u00e1o ngay l\u1eadp t\u1ee9c cho nh\u00e2n vi\u00ean b\u1ea3o tr\u00ec.<\/p>\n<\/div>\n

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S\u1ef1 an to\u00e0n<\/h3>\n

C\u00e1c ph\u01b0\u01a1ng ph\u00e1p ch\u1ea9n \u0111o\u00e1n ti\u00ean ti\u1ebfn v\u00e0 ki\u1ec3m tra \u0111\u1ed9t qu\u1ef5 m\u1ed9t ph\u1ea7n gi\u00fap t\u0103ng c\u01b0\u1eddng an to\u00e0n v\u00e0 k\u00e9o d\u00e0i kho\u1ea3ng th\u1eddi gian ki\u1ec3m tra kh\u00f3a li\u00ean \u0111\u1ed9ng SIL.<\/p>\n<\/div>\n<\/div>\n

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C\u00e1c ph\u01b0\u01a1ng ph\u00e1p qu\u1ea3n l\u00fd d\u1eef li\u1ec7u t\u1ed1t nh\u1ea5t<\/h2>\n

Nh\u00e2n vi\u00ean v\u1eadn h\u00e0nh nh\u00e0 m\u00e1y LNG n\u00ean th\u01b0\u1eddng xuy\u00ean thu th\u1eadp v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u t\u1eeb thi\u1ebft b\u1ecb \u0111\u1ecbnh v\u1ecb van th\u00f4ng minh \u0111\u1ec3 t\u1ed1i \u0111a h\u00f3a vi\u1ec7c ti\u1ebft ki\u1ec7m chi ph\u00ed:<\/p>\n