HANGZHOU NUZHUO TECHNOLOGY GROUP CO.,LTD.

Nā manaʻo kumu『BPCS』

Pūnaehana hoʻomalu kaʻina hana kumu: Pane i nā hōʻailona hoʻokomo mai ke kaʻina hana, nā lako e pili ana i ka ʻōnaehana, nā ʻōnaehana polokalamu ʻē aʻe, a / a i ʻole ka mea hoʻohana, a hana i kahi ʻōnaehana e hana ai i ke kaʻina hana a me nā lako e pili ana i ka ʻōnaehana e like me ka makemake, akā ʻaʻole ia e hana i kekahi nā hana palekana me ka SIL≥1 i haʻi ʻia.(Excerpt: GB/T 21109.1-2007 (IEC 61511-1:2003, IDT) Ka palekana hana o nā ʻōnaehana palekana i ka ʻoihana kaʻina hana - Māhele 1: Framework, wehewehe, ʻōnaehana, lako a me nā pono lako polokalamu 3.3.2)

Pūnaehana Manaʻo Kaʻina Hana Kumu: E pane i nā hōʻailona hoʻokomo mai nā ana kaʻina hana a me nā mea hana ʻē aʻe e pili ana, nā mea hana ʻē aʻe, nā ʻōnaehana hoʻokele, a i ʻole nā ​​​​mea hana.Wahi a ke kānāwai hoʻomalu kaʻina hana, algorithm a me ke ʻano, hana ʻia ka hōʻailona hoʻopuka e ʻike i ka hana o ke kaʻina hana a me kāna mau mea pili.I loko o nā mea kanu petrochemical a i ʻole nā ​​mea kanu, hoʻohana pinepine ka ʻōnaehana kaʻina hana kumu i kahi ʻōnaehana mana puʻupuʻu (DCS).ʻAʻole pono nā ʻōnaehana kaʻina hana maʻamau e hana i nā hana palekana no SIL1, SIL2, SIL3.(Mahele: GB/T 50770-2013 Code no ka hoʻolālā ʻana i nā ʻōnaehana palekana petrochemical 2.1.19 )

『SIS』

Pūnaehana mea hana palekana: He ʻōnaehana i hoʻohana ʻia no ka hoʻokō ʻana i hoʻokahi a i ʻole kekahi mau hana palekana.Hiki i ka SIS ke hui pū me ka sensor, logic solver, a me ka mea hope.

Hana palekana mea hana;Loaʻa iā SIF kahi SIL kikoʻī e hoʻokō i nā hana palekana palekana palekana, hiki ke lilo i mea hana palekana palekana a me kahi hana hoʻomalu palekana.

Ka pae kūpaʻa palekana;Hoʻohana ʻia ʻo SIL e wehewehe i nā pae ʻokoʻa (kekahi o nā pae 4) no nā koi palekana palekana o nā hana palekana mea kani i hāʻawi ʻia i nā ʻōnaehana mea hana palekana.ʻO SIL4 ka pae kiʻekiʻe o ka palekana palekana a ʻo SIL1 ka haʻahaʻa.
(Excerpt: GB/T 21109.1-2007 (IEC 61511-1:2003, IDT) Ka palekana hana o nā ʻōnaehana mea hana palekana no ka ʻoihana kaʻina Mahele 1: Ka hana, wehewehe, ʻōnaehana, lako a me nā pono lako polokalamu 3.2.72/3.2.71/ 3.2.74)

Pūnaehana mea hana palekana: He ʻōnaehana mea hana e hoʻokō i hoʻokahi a ʻoi aku paha nā hana i hoʻohana ʻia.(Excerpt: GB/T 50770-2013 Code for design of petrochemical safety instrumented systems 2.1.1);

ʻO ka ʻokoʻa ma waena o BPCS a me SIS

Pūnaehana mea hana palekana (SIS) kūʻokoʻa i ka ʻōnaehana hoʻomalu kaʻina hana BPCS (e like me ka ʻōnaehana mana hoʻohele DCS, a me nā mea ʻē aʻe). no laila ke kaʻina hana hana e ho'ōki i ka holo ʻana a i ʻole e hoʻokomo maʻalahi i kahi kūlana palekana i koho mua ʻia, pono e loaʻa ka hilinaʻi kiʻekiʻe (ʻo ia hoʻi, palekana hana) a me ka hoʻokele mālama maʻamau, inā hāʻule ka ʻōnaehana instrumented, alakaʻi pinepine i nā pōʻino palekana koʻikoʻi.(Excerpt: General Administration of Safety Supervision No. 3 (2014) No. 116, Nā Manaʻo alakaʻi o ka Moku'āina o ka Moku'āina no ka Hoʻoikaikaʻana i ka Hoʻoponoponoʻana i nā Pūnaehana Instrumentation Chemical)

ʻO ke ʻano o ke kūʻokoʻa o SIS mai BPCS: Inā hoʻokō ka hana maʻamau o ka BPCS control loop i kēia mau koi, hiki ke hoʻohana ʻia ma ke ʻano he pale pale kūʻokoʻa, pono e hoʻokaʻawale kino ʻia ka loop control BPCS mai ka ʻōnaehana hana palekana (SIS). loop SIF, me ka sensor, ka mea hoʻoponopono a me ka mea hope.

Ka ʻokoʻa ma waena o BPCS a me SIS:

Nā hana kumu like ʻole: hana hana / hana palekana;

Nā mokuʻāina hana like ʻole: ka mana manawa maoli / over-limit time interlock;

Nā koi hilinaʻi like ʻole: Pono ʻo SIS i ka hilinaʻi kiʻekiʻe;

Nā ʻano mana like ʻole: ka hoʻomau mau ʻana e like me ka mana nui / logic e like me ka mana nui;

Nā ʻano hana like ʻole o ka hoʻohana ʻana a me ka mālama ʻana: ʻoi aku ka paʻakikī o SIS;

Hoʻohui BPCS a me SIS

Inā hiki i ka BPCS a me SIS ke kaʻana like i nā ʻāpana hiki ke noʻonoʻo a hoʻoholo ʻia mai nā ʻano ʻekolu aʻe:

Nā koi a me nā hoʻolako o nā kiko'ī maʻamau, nā koi palekana, keʻano IPL, ka loiloi SIL;

Loiloi hoʻokele waiwai (inā ua hoʻokō ʻia nā koi palekana kumu), e laʻa, ka nānā ʻana o ALARP (e like me ka haʻahaʻa e hiki ai ke hana);

Hoʻoholo ʻia nā luna a i ʻole nā ​​mea ʻenekinia ma muli o ka ʻike a me ka makemake kumuhana.

ʻO kēlā me kēiaʻaoʻao, pono ke koi liʻiliʻi e hoʻokō i nā koi o nā lula a me nā kūlana.