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Imiqondo eyisisekelo『BPCS』

Isistimu yokulawula inqubo eyisisekelo: Iphendula kumasignali okokufaka kusukela kunqubo, okokusebenza okuhlobene nesistimu, amanye amasistimu ahlelekayo, kanye/noma isisebenzisi, futhi ikhiqiza isistimu eyenza inqubo nezinto ezisetshenziswayo ezihlobene nesistimu zisebenze njengoba kudingekile, kodwa alwenzi lutho. imisebenzi yokuphepha yezinsimbi nge-SIL≥1 eshiwo.(Okucashuniwe: GB/T 21109.1-2007 (IEC 61511-1:2003, IDT) Ukuphepha okusebenzayo kwezinhlelo ezisetshenziswa zokuphepha embonini yenqubo - Ingxenye 1: Uhlaka, izincazelo, isistimu, ihadiwe nezidingo zesofthiwe 3.3.2)

Isistimu Yokulawula Inqubo Eyisisekelo: Iphendula amasignali okokufaka kusukela kuzilinganiso zenqubo nezinye izinto zokusebenza ezihlobene, ezinye izisetshenziswa, amasistimu okulawula, noma ama-opharetha.Ngokomthetho wokulawula inqubo, i-algorithm kanye nendlela, isignali yokuphumayo ikhiqizwa ukuze ibone ukusebenza kokulawulwa kwenqubo kanye nemishini yayo ehlobene.Ezitshalweni ze-petrochemical noma izitshalo, uhlelo oluyisisekelo lokulawula inqubo luvamise ukusebenzisa uhlelo lokulawula olusabalalisiwe (DCS).Amasistimu okulawula inqubo eyisisekelo akufanele enze imisebenzi yethuluzi lokuphepha le-SIL1, SIL2, SIL3.(Okucashuniwe: Ikhodi ye-GB/T 50770-2013 yokuklanywa kwezinhlelo ezisetshenziswa zokuphepha ze-petrochemical 2.1.19 )

『SIS』

Isistimu yethuluzi lokuphepha: Isistimu enezinsimbi esetshenziselwa ukusebenzisa umsebenzi owodwa noma eminingana yokuphepha kwensimbi.I-SIS ingaqukatha noma iyiphi inhlanganisela yenzwa, isixazululi se-logic, nento yokugcina.

Umsebenzi wokuphepha wezinsimbi;I-SIF ine-SIL ethile yokufeza imisebenzi esebenzayo yokuphepha kokuphepha, okungaba kokubili umsebenzi wokuvikela ukuphepha kwethuluzi nomsebenzi wokulawula ukuphepha kwethuluzi.

Izinga lobuqotho bokuphepha;I-SIL isetshenziselwa ukucacisa amaleveli ahlukene (elilodwa lamaleveli angu-4) ngezimfuneko zokuphepha zobuqotho bemisebenzi yokuphepha yamathuluzi anikezwe amasistimu amathuluzi okuphepha.I-SIL4 izinga eliphezulu lobuqotho bokuphepha futhi i-SIL1 iphansi kakhulu.
(Okucashuniwe: GB/T 21109.1-2007 (IEC 61511-1:2003, IDT) Ukuphepha okusebenzayo kwamasistimu anamathuluzi okuphepha embonini yenqubo Ingxenye 1: Uhlaka, izincazelo, isistimu, ihadiwe nezidingo zesofthiwe 3.2.72/3.2.71/ 3.2.74)

Isistimu yethuluzi lokuphepha: Isistimu enezinsimbi esebenzisa umsebenzi owodwa noma ngaphezulu onethuluzi lokuphepha.(Okucashuniwe: I-GB/T 50770-2013 Ikhodi yokuklanywa kwezinhlelo ze-petrochemical security instrumented 2.1.1);

Umehluko phakathi kwe-BPCS ne-SIS

Isistimu ye-Safety instrumented System (SIS) engazimele ohlelweni lokulawula inqubo i-BPCS (efana nesistimu yokulawula okusatshalaliswa kwe-DCS, njll.), ukukhiqizwa ngokuvamile kuthule noma kumile, uma idivayisi yokukhiqiza noma indawo ingase iholele ezingozini zokuphepha, ingaba isenzo esinembile ngaso leso sikhathi, ukuze inqubo yokukhiqiza iyeke ukusebenza ngokuphepha noma ungenise ngokuzenzakalelayo isimo sokuphepha esinqunywe kusengaphambili, kufanele sibe nokwethembeka okuphezulu (okungukuthi, ukuphepha okusebenzayo) kanye nokuphathwa kokulungisa okujwayelekile, uma isistimu yethuluzi lokuphepha lehluleka, ngokuvamile iholela ezingozini ezimbi zokuphepha.(Ingcaphuno: Ukuphathwa Okujwayelekile Kokuqapha Kokuphepha No. 3 (2014) No. 116, Imibono Eqondisayo Yokuphathwa Kwezwe Lokugadwa Kokuphepha Ekuqiniseni Ukuphathwa Kwezinhlelo Zokusebenza Kwezokuphepha Kwamakhemikhali)

Incazelo yokuzimela kwe-SIS ku-BPCS: Uma ukusebenza okuvamile kweluphu yokulawula ye-BPCS kuhlangabezana nezimfuneko ezilandelayo, ingasetshenziswa njengesendlalelo esizimele esivikelayo, iluphu yokulawula ye-BPCS kufanele ihlukaniswe ngokomzimba kusukela kusistimu yokuphepha yezinsimbi (SIS) iluphu SIF, kufaka phakathi inzwa, isilawuli kanye nesici sokugcina.

Umehluko phakathi kwe-BPCS ne-SIS:

Imisebenzi yenhloso ehlukene: umsebenzi wokukhiqiza / umsebenzi wokuphepha;

Izifundazwe ezihlukene zokusebenza: ukulawulwa kwesikhathi sangempela / ukuvala isikhathi esinqunyelwe;

Izidingo ezihlukene zokuthembeka: I-SIS idinga ukwethembeka okuphezulu;

Izindlela ezihlukene zokulawula: ukulawula okuqhubekayo njengokulawula okuyinhloko / okunengqondo njengokulawula okuyinhloko;

Izindlela ezihlukene zokusebenzisa nokunakekela: I-SIS iqine kakhulu;

I-BPCS ne-SIS ukuxhumana

Ukuthi i-BPCS ne-SIS zingabelana ngezingxenye yini kungacatshangwa futhi kunqunywe kusukela kulezi zici ezintathu ezilandelayo:

Izidingo nezinhlinzeko zokucaciswa okujwayelekile, izidingo zokuphepha, indlela ye-IPL, ukuhlolwa kwe-SIL;

Ukuhlola komnotho (inqobo nje uma izidingo zokuphepha eziyisisekelo zihlangatshezwana nazo), isb, ukuhlaziywa kwe-ALARP (okuphansi ngokufaneleka okunokwenzeka);

Abaphathi noma onjiniyela banqunywa ngokusekelwe kokuhlangenwe nakho kanye nentando eqondile.

Noma iyiphi indlela, imfuneko encane yokuhlangabezana nezidingo zemithethonqubo namazinga iyadingeka.