Iingcamango ezisisiseko『BPCS』
Inkqubo yolawulo lwenkqubo esisiseko: Iphendula kwiimpawu zegalelo ezivela kwinkqubo, izixhobo ezinxulumene nenkqubo, ezinye iinkqubo ezicwangcisiweyo, kunye / okanye umqhubi, kwaye ivelise inkqubo eyenza inkqubo kunye nezixhobo ezinxulumene nenkqubo zisebenze njengoko zifunwa, kodwa ayenzi nayiphi na imisebenzi yokhuseleko lwezixhobo kunye ne-SIL≥1 echazwe. (Isicatshulwa: I-GB/T 21109.1-2007 (IEC 61511-1: 2003, IDT) Ukhuseleko olusebenzayo lweenkqubo zokhuseleko lwezixhobo kwishishini lenkqubo - Icandelo 1: Isakhelo, iinkcazo, inkqubo, i-hardware kunye neemfuno zesoftware 3.3.2)
Inkqubo yoLawulo lweNkqubo eSisiseko: Iphendula kwiimpawu zegalelo ukusuka kwimilinganiselo yenkqubo kunye nezinye izixhobo ezinxulumene nazo, ezinye izixhobo, iinkqubo zokulawula, okanye abaqhubi. Ngokomthetho wolawulo lwenkqubo, i-algorithm kunye nendlela, isignali yokuphuma iveliswa ukuqonda ukusebenza kolawulo lwenkqubo kunye nezixhobo ezinxulumene nayo. Kwizityalo zepetrochemical okanye izityalo, inkqubo yokulawula inkqubo esisiseko ngokuqhelekileyo isebenzisa inkqubo yokulawula ukusabalalisa (DCS). Iinkqubo ezisisiseko zokulawula inkqubo akufanele zenze imisebenzi yezixhobo zokhuseleko ze-SIL1, SIL2, SIL3. (Isicatshulwa: I-GB/T 50770-2013 Ikhowudi yoyilo lweenkqubo zokhuseleko lwepetrochemical izixhobo 2.1.19)
『SIS』
Inkqubo yezixhobo zokhuseleko: Inkqubo enesixhobo esetyenziselwa ukuphumeza umsebenzi omnye okanye emininzi yokhuseleko lwesixhobo. I-SIS inokubandakanya nayiphi na indibaniselwano yesivamvo, isisombululi sengqiqo, kunye nesixhobo sokugqibela.
Umsebenzi wokhuseleko lwesixhobo; I-SIF ine-SIL ethile yokufezekisa imisebenzi yokhuseleko lokhuseleko olusebenzayo, olunokuthi lube ngumsebenzi wokukhusela ukhuseleko lwesixhobo kunye nomsebenzi wokulawula ukhuseleko lwesixhobo.
inqanaba lemfezeko yokhuseleko; I-SIL isetyenziselwa ukucacisa amanqanaba ahlukeneyo (enye yemigangatho emi-4) kwiimfuno zemfezeko yokhuseleko lwemisebenzi yokhuseleko lwezixhobo ezinikezelwe kwiinkqubo ezinezixhobo zokhuseleko. I-SIL4 lelona nqanaba liphezulu lokuthembeka kokhuseleko kwaye i-SIL1 yeyona iphantsi.
(Isicatshulwa: GB/T 21109.1-2007 (IEC 61511-1: 2003, IDT) Ukhuseleko olusebenzayo lweenkqubo zokhuseleko lwezixhobo zenkqubo yoshishino lwenkqubo Icandelo 1: Isakhelo, iinkcazo, inkqubo, i-hardware kunye neemfuno zesoftware 3.2.72/3.2.71/3.2.74)
Inkqubo yezixhobo zokhuseleko: Inkqubo enesixhobo ephumeza umsebenzi omnye okanye ngaphezulu onesixhobo sokhuseleko. (Isicatshulwa: I-GB / T 50770-2013 Ikhowudi yoyilo lwe-petrochemical security instrumented systems 2.1.1);
Umahluko phakathi kwe-BPCS kunye ne-SIS
Inkqubo yezixhobo zokhuseleko (SIS) ezizimeleyo kwinkqubo yolawulo lwenkqubo BPCS (ezifana nenkqubo yolawulo olusasaziweyo DCS, njl.), imveliso idla ngokulala okanye imile, xa isixhobo sokuvelisa okanye indawo enokukhokelela kwiingozi zokhuseleko, inokuba yintshukumo echanekileyo ngephanyazo, ukuze inkqubo yokuvelisa ngokukhuselekileyo iyeke ukubaleka okanye ukungenisa ngokuzenzekelayo urhulumente wokhuseleko olumisiweyo, kufuneka ube nokuthembeka okuphezulu (oko kukuthi, inkqubo yokugcinwa kokhuseleko esemgangathweni, inkqubo yokugcinwa kokhuseleko ethe gqolo iyasilela) iingozi zokhuseleko. (Isicatshulwa: Ulawulo Jikelele loLawulo loKhuseleko lweNombolo ye-3 (2014) No. 116, Iimbono eziKhokelelwayo zoLawulo lukaRhulumente loLawulo loKhuseleko ekomelezeni uLawulo lweeNkqubo zoKhuseleko lweMichiza)
Intsingiselo yokuzimela kwe-SIS kwi-BPCS: Ukuba ukusebenza okuqhelekileyo kwe-loop yokulawula i-BPCS ihlangabezana nezi mfuno zilandelayo, ingasetyenziselwa njengoluhlu oluzimeleyo olukhuselayo, i-loop yokulawula i-BPCS kufuneka ihlulwe ngokwasemzimbeni kwi-system ye-instrumented system (SIS) i-functional security loop SIF, kuquka i-sensor, isilawuli kunye nento yokugqibela.
Umahluko phakathi kwe-BPCS kunye ne-SIS:
Imisebenzi yeenjongo ezahlukeneyo: umsebenzi wemveliso / umsebenzi wokhuseleko;
Amazwe ahlukeneyo okusebenza: ulawulo lwexesha lokwenyani / ukuvalwa kwexesha elingaphaya komda;
Iimfuno ezahlukeneyo zokuthembeka: i-SIS ifuna ukuthembeka okuphezulu;
Iindlela zolawulo ezahlukeneyo: ulawulo oluqhubekayo njengolona lawulo luphambili / lwengqiqo njengolona lawulo luphambili;
Iindlela ezahlukeneyo zokusebenzisa kunye nokugcinwa: I-SIS ingqongqo ngakumbi;
Unxibelelwano lwe-BPCS kunye ne-SIS
Ingaba i-BPCS kunye ne-SIS zingabelana ngamacandelo zinokuqwalaselwa kwaye zimiselwe kule miba mithathu ilandelayo:
Iimfuno kunye namalungiselelo emilinganiselo esemgangathweni, iimfuno zokhuseleko, indlela ye-IPL, uvavanyo lwe-SIL;
Uvandlakanyo loqoqosho (ngokuxhomekeke ekubeni kuhlangatyezwane neemfuno ezisisiseko zokhuseleko), umz., uhlalutyo lwe-ALARP (luphantsi kangangoko lunokwenzeka);
Abaphathi okanye iinjineli zimiselwa ngokusekwe kumava kunye nentando yokuzikhethela.
Nokuba yeyiphi na indlela, ubuncinci bemfuno yokuhlangabezana neemfuno zemigaqo kunye nemigangatho iyafuneka.
Ixesha lokuposa: Sep-09-2023