HANGZHOU NUZHUO TECHNOLOGY GROUP CO.,LTD.

Nā manaʻo kumuBPCS

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

ʻŌnaehana Mana Kaʻina Hana Kumu: Pane i nā hōʻailona hoʻokomo mai nā ana hana a me nā lako pili ʻē aʻe, nā mea hana ʻē aʻe, nā ʻōnaehana mana, a i ʻole nā ​​mea hoʻohana. Wahi a ke kānāwai mana hana, ka algorithm a me ke ʻano hana, ua hoʻopuka ʻia ka hōʻailona hoʻopuka e hoʻokō i ka hana o ka mana hana a me kāna mau lako pili. I loko o nā hale hana petrochemical a i ʻole nā ​​hale hana, hoʻohana pinepine ka ʻōnaehana mana hana kumu i kahi ʻōnaehana mana i hoʻolaha ʻia (DCS). ʻAʻole pono nā ʻōnaehana mana hana kumu e hana i nā hana palekana no SIL1, SIL2, SIL3. (ʻĀpana: GB/T 50770-2013 Code no ka hoʻolālā ʻana i nā ʻōnaehana palekana petrochemical 2.1.19)

『SIS』

ʻŌnaehana mea hana palekana: He ʻōnaehana mea hana i hoʻohana ʻia e hoʻokō i hoʻokahi a ʻoi aku paha mau hana palekana mea hana. Hiki i ka SIS ke loaʻa i kekahi hui pū ʻana o ka sensor, ka mea hoʻonā logic, a me ka mea hope loa.

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

Pae kūpaʻa palekana; Hoʻohana ʻia ʻo SIL e kuhikuhi i nā pae kaʻawale (kekahi o nā pae 4) no nā koi kūpaʻa palekana o nā hana palekana mea hana i hāʻawi ʻia i nā ʻōnaehana mea hana palekana. ʻO SIL4 ka pae kiʻekiʻe loa o ka kūpaʻa palekana a ʻo SIL1 ka haʻahaʻa loa.
(ʻĀpana: GB/T 21109.1-2007 (IEC 61511-1:2003, IDT) Palekana hana o nā ʻōnaehana palekana i hoʻohana ʻia no ka ʻoihana hana Māhele 1: ʻAno hana, wehewehena, ʻōnaehana, lako a me nā koi polokalamu 3.2.72/3.2.71/3.2.74)

ʻŌnaehana palekana i hoʻohana ʻia e nā mea hana: He ʻōnaehana i hoʻohana ʻia e hoʻokō ana i hoʻokahi a ʻoi aku paha mau hana palekana i hoʻohana ʻia e nā mea hana. (ʻĀpana: GB/T 50770-2013 Code no ka hoʻolālā ʻana i nā ʻōnaehana palekana petrochemical i hoʻohana ʻia e nā mea hana 2.1.1);

ʻO ka ʻokoʻa ma waena o BPCS a me SIS

ʻO ka ʻōnaehana palekana i hoʻohana ʻia (SIS) kūʻokoʻa o ka ʻōnaehana kaohi hana BPCS (e like me ka ʻōnaehana kaohi i hoʻolaha ʻia DCS, etc.), ʻo ka hana maʻamau he hiamoe a static paha, i ka manawa e alakaʻi ai ka mea hana a i ʻole ka hale hana i nā ulia palekana, hiki ke hana pololei koke, i mea e hoʻōki palekana ai ke kaʻina hana i ka holo ʻana a i ʻole e lawe koke i kahi kūlana palekana i hoʻoholo mua ʻia, pono e loaʻa ka hilinaʻi kiʻekiʻe (ʻo ia hoʻi, ka palekana hana) a me ka hoʻokele mālama maʻamau, inā hāʻule ka ʻōnaehana palekana i hoʻohana ʻia, alakaʻi pinepine i nā ulia palekana koʻikoʻi. (ʻĀpana: Hoʻokele Nui o ka Mākaʻikaʻi Palekana No. 3 (2014) No. 116, Nā Manaʻo Alakaʻi o ka Hoʻokele Moku'āina o ka Mākaʻikaʻi Palekana ma ka Hoʻoikaika ʻana i ka Hoʻokele o nā ʻōnaehana Instrumentation Palekana Kemika)

ʻO ke ʻano o ke kūʻokoʻa SIS mai BPCS: Inā hoʻokō ka hana maʻamau o ka loop mana BPCS i nā koi aʻe, hiki ke hoʻohana ʻia ma ke ʻano he papa pale kūʻokoʻa, pono e hoʻokaʻawale kino ʻia ka loop mana BPCS mai ka ʻōnaehana palekana instrumented (SIS) functional safety loop SIF, me ka sensor, ka mea hoʻokele a me ka element hope loa.

ʻOkoʻa ma waena o BPCS a me SIS:

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

Nā kūlana hana like ʻole: kaohi manawa maoli / ka laka manawa ma luna o ka palena;

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

Nā ʻano kaohi like ʻole: kaohi mau e like me ke kaohi nui / kaohi logic e like me ke kaohi nui;

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

Ka pilina BPCS a me SIS

Hiki ke noʻonoʻo ʻia a hoʻoholo ʻia inā hiki iā BPCS lāua ʻo SIS ke kaʻana like i nā ʻāpana mai nā ʻano ʻekolu aʻe:

Nā koi a me nā ʻōlelo o nā kikoʻī maʻamau, nā koi palekana, ke ʻano hana IPL, ka loiloi SIL;

Ka loiloi waiwai (inā ua hoʻokō ʻia nā koi palekana kumu), e laʻa, ka loiloi ALARP (e like me ka haʻahaʻa e like me ka hiki ke hana kūpono);

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

Ma kēlā me kēia ʻaoʻao, koi ʻia ka koi haʻahaʻa loa e hoʻokō ai i nā koi o nā lula a me nā kūlana.