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Iingcamango ezisisiseko『BPCS』

Inkqubo yolawulo olusisiseko lwenkqubo: Iphendula kwimiqondiso yokufaka evela kwinkqubo, kwizixhobo ezinxulumene nenkqubo, kwezinye iinkqubo ezinokucwangciswa, kunye/okanye kumqhubi, kwaye ivelise inkqubo eyenza inkqubo kunye nezixhobo ezinxulumene nenkqubo zisebenze njengoko kufuneka, kodwa ayenzi nayiphi na imisebenzi yokhuseleko lwezixhobo nge-SIL≥1 ebhengeziweyo. (Isicatshulwa: GB/T 21109.1-2007 (IEC 61511-1:2003, IDT) Ukhuseleko olusebenzayo lweenkqubo zezixhobo zokhuseleko kushishino lwenkqubo – Icandelo 1: Isakhelo, iinkcazo, inkqubo, ihardware kunye neemfuno zesoftware 3.3.2)

Inkqubo yoLawulo lweNkqubo eSisiseko: Iphendula kwimiqondiso yokufaka evela kwiimilinganiselo zenkqubo kunye nezinye izixhobo ezinxulumene nayo, ezinye izixhobo, iinkqubo zolawulo, okanye abaqhubi. Ngokomthetho wolawulo lwenkqubo, i-algorithm kunye nendlela, isignali yokuphuma iveliswa ukuze kufezekiswe ukusebenza kolawulo lwenkqubo kunye nezixhobo ezinxulumene nayo. Kwizityalo ze-petrochemical okanye izityalo, inkqubo yolawulo lwenkqubo esisiseko idla ngokusebenzisa inkqubo yolawulo olusasazwe (i-DCS). Iinkqubo zolawulo lwenkqubo eSisiseko akufuneki zenze imisebenzi yezixhobo zokhuseleko ze-SIL1, SIL2, SIL3. (Isicatshulwa: GB/T 50770-2013 Ikhowudi yoyilo lweenkqubo zezixhobo zokhuseleko ze-petrochemical 2.1.19)

『SIS』

Inkqubo yezixhobo zokhuseleko: Inkqubo yezixhobo ezisetyenziselwa ukuphumeza umsebenzi omnye okanye emininzi yokhuseleko lwezixhobo. I-SIS inokuba nayo nayiphi na indibaniselwano ye-sensor, i-logic solver, kunye ne-final element.

Umsebenzi wokhuseleko lwezixhobo; I-SIF ine-SIL ethile yokufezekisa imisebenzi yokhuseleko lokhuseleko olusebenzayo, enokuba ngumsebenzi wokhuseleko lokhuseleko lwezixhobo kunye nomsebenzi wolawulo lokhuseleko lwezixhobo.

Inqanaba lokuthembeka kokhuseleko; I-SIL isetyenziselwa ukucacisa amanqanaba ahlukeneyo (enye yamanqanaba ama-4) kwiimfuno zokuthembeka kokhuseleko lwemisebenzi yokhuseleko yezixhobo ezinikwe iinkqubo zezixhobo zokhuseleko. I-SIL4 lelona nqanaba liphezulu lokuthembeka kokhuseleko kwaye i-SIL1 lelona liphantsi.
(Isicatshulwa: GB/T 21109.1-2007 (IEC 61511-1:2003, IDT) Ukhuseleko olusebenzayo lweenkqubo ezisebenzisa izixhobo zokhuseleko kushishino lwenkqubo Icandelo 1: Isakhelo, iinkcazo, inkqubo, iimfuno zehardware kunye nesoftware 3.2.72/3.2.71/3.2.74)

Inkqubo yezixhobo zokhuseleko: Inkqubo yezixhobo esebenzisa umsebenzi omnye okanye ngaphezulu wezixhobo zokhuseleko. (Isicatshulwa: GB/T 50770-2013 Ikhowudi yoyilo lweenkqubo zezixhobo zokhuseleko ze-petrochemical 2.1.1);

Umahluko phakathi kwe-BPCS kunye ne-SIS

Inkqubo yezixhobo zokhuseleko (SIS) ezimeleyo kwinkqubo yolawulo lwenkqubo i-BPCS (njengenkqubo yolawulo olusasazwe i-DCS, njl.njl.), imveliso idla ngokungashukumi okanye ingashukumi, xa isixhobo semveliso okanye indawo inokukhokelela kwiingozi zokhuseleko, inokuba yintshukumo echanekileyo ngoko nangoko, ukuze inkqubo yemveliso iyeke ukusebenza ngokukhuselekileyo okanye ingenise ngokuzenzekelayo imeko yokhuseleko emiselweyo, kufuneka ibe nokuthembeka okuphezulu (oko kukuthi, ukhuseleko olusebenzayo) kunye nolawulo lolondolozo olusemgangathweni, ukuba inkqubo yezixhobo zokhuseleko iyasilela, idla ngokukhokelela kwiingozi ezinkulu zokhuseleko. (Isicatshulwa: Ulawulo Jikelele loLawulo loKhuseleko No. 3 (2014) No. 116, Izimvo ezikhokelayo zoLawulo loKhuseleko lukaRhulumente malunga nokuQinisekisa uLawulo lweeNkqubo zeZixhobo zoKhuseleko lweeKhemikhali)

Intsingiselo yokuzimela kwe-SIS kwi-BPCS: Ukuba ukusebenza okuqhelekileyo kweluphu yokulawula ye-BPCS kuhlangabezana neemfuno ezilandelayo, ingasetyenziswa njengomaleko ozimeleyo wokukhusela, iluphu yokulawula ye-BPCS kufuneka yahlulwe ngokwasemzimbeni kwiluphu yokhuseleko esebenzayo ye-SIF yenkqubo yokhuseleko (SIS), kubandakanya i-sensor, i-controller kunye ne-final element.

Umahluko phakathi kwe-BPCS kunye ne-SIS:

Imisebenzi eyahlukeneyo yeenjongo: umsebenzi wemveliso / umsebenzi wokhuseleko;

Iimeko ezahlukeneyo zokusebenza: ulawulo lwexesha langempela / ixesha lokunxibelelana eligqithisileyo;

Iimfuno ezahlukeneyo zokuthembeka: I-SIS ifuna ukuthembeka okuphezulu;

Iindlela ezahlukeneyo zokulawula: ulawulo oluqhubekayo njengolawulo oluphambili/olunengqiqo njengolawulo oluphambili;

Iindlela ezahlukeneyo zokusebenzisa nokugcina: I-SIS ingqongqo ngakumbi;

Unxibelelwano lwe-BPCS kunye ne-SIS

Ukuba i-BPCS kunye ne-SIS zinokubelana ngezinto ezithile kunokuqwalaselwa kwaye kumiselwe kwezi nkalo zintathu zilandelayo:

Iimfuno kunye nemimiselo yeenkcukacha ezisemgangathweni, iimfuno zokhuseleko, indlela ye-IPL, uvavanyo lwe-SIL;

Uvavanyo lwezoqoqosho (ukuba nje iimfuno zokhuseleko ezisisiseko ziyafezekiswa), umz., uhlalutyo lwe-ALARP (oluphantsi kangangoko lunokwenzeka);

Abaphathi okanye iinjineli zimiselwa ngokusekelwe kumava kunye nentando yomntu ngamnye.

Nokuba yeyiphi na indlela, kufuneka ubuncinane bomlinganiselo wokuhlangabezana neemfuno zemigaqo nemigangatho.