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Imiqondo eyisisekelo『I-BPCS』

Uhlelo lokulawula inqubo oluyisisekelo: Luphendula kumasignali okufaka avela kunqubo, imishini ehlobene nohlelo, ezinye izinhlelo ezingahlelwa, kanye/noma umqhubi, futhi lukhiqize uhlelo olwenza inqubo kanye nemishini ehlobene nohlelo isebenze njengoba kudingeka, kodwa alwenzi noma yimiphi imisebenzi yokuphepha kwezinsimbi nge-SIL emenyezelwe≥1. (Ingcaphuno: GB/T 21109.1-2007 (IEC 61511-1:2003, IDT) Ukuphepha okusebenzayo kwezinhlelo zezinsimbi zokuphepha embonini yezinqubo – Ingxenye 1: Uhlaka, izincazelo, uhlelo, izidingo zehadiwe kanye nesofthiwe 3.3.2)

Uhlelo Lokulawula Inqubo Eyisisekelo: Luphendula ezimpawini zokufaka ezivela ekulinganisweni kwenqubo kanye neminye imishini ehlobene, eminye imishini, izinhlelo zokulawula, noma opharetha. Ngokomthetho wokulawula inqubo, i-algorithm kanye nendlela, isignali yokukhipha ikhiqizwa ukuze kufezwe ukusebenza kokulawulwa kwenqubo kanye nemishini ehlobene nayo. Ezitshalweni noma ezitshalweni ze-petrochemical, uhlelo lokulawula inqubo oluyisisekelo luvame ukusebenzisa uhlelo lokulawula olusatshalaliswa (i-DCS). Izinhlelo zokulawula inqubo eziyisisekelo akufanele zenze imisebenzi yezinsimbi zokuphepha ze-SIL1, SIL2, SIL3. (Ingcaphuno: GB/T 50770-2013 Ikhodi yokuklama izinhlelo zezinsimbi zokuphepha ze-petrochemical 2.1.19)

『SIS』

Uhlelo lwezinsimbi zokuphepha: Uhlelo olunezinsimbi olusetshenziswa ukusebenzisa umsebenzi owodwa noma eminingana yokuphepha kwezinsimbi. I-SIS ingaba nanoma iyiphi inhlanganisela yenzwa, isixazululo se-logic, kanye nesici sokugcina.

Umsebenzi wokuphepha kwezinsimbi; I-SIF ine-SIL ethile yokufeza imisebenzi yokuphepha yokuphepha esebenzayo, engaba umsebenzi wokuvikela ukuphepha kwezinsimbi kanye nomsebenzi wokulawula ukuphepha kwezinsimbi.

Izinga lobuqotho bokuphepha; I-SIL isetshenziselwa ukucacisa amazinga ahlukene (elinye lamazinga ama-4) ezidingweni zobuqotho bokuphepha kwemisebenzi yokuphepha yezinsimbi ezinikezwe izinhlelo zezinsimbi zokuphepha. I-SIL4 iyizinga eliphakeme kakhulu lobuqotho bokuphepha kanti i-SIL1 iyizinga eliphansi kakhulu.
(Ingcaphuno: GB/T 21109.1-2007 (IEC 61511-1:2003, IDT) Ukuphepha okusebenzayo kwezinhlelo zokuphepha zemboni yezinqubo Ingxenye 1: Uhlaka, izincazelo, uhlelo, izidingo zehadiwe kanye nesofthiwe 3.2.72/3.2.71/3.2.74)

Uhlelo lwezinsimbi zokuphepha: Uhlelo olunezinsimbi olusebenzisa umsebenzi owodwa noma ngaphezulu wezinsimbi zokuphepha. (Ingcaphuno: GB/T 50770-2013 Ikhodi yokuklama izinhlelo zezinsimbi zokuphepha ze-petrochemical 2.1.1);

Umehluko phakathi kwe-BPCS ne-SIS

Uhlelo olusebenzisa amathuluzi okuphepha (i-SIS) oluzimele ohlelweni lokulawula inqubo i-BPCS (njengesistimu yokulawula esabalalisiwe i-DCS, njll.), ukukhiqizwa kuvame ukungasebenzi noma kungashintshi, uma idivayisi noma indawo yokukhiqiza ingaholela ezingozini zokuphepha, kungaba yisenzo esinembile ngokushesha, ukuze inqubo yokukhiqiza iyeke ukusebenza ngokuphephile noma ingenise ngokuzenzakalelayo isimo sokuphepha esinqunyiwe, kumele ibe nokuthembeka okuphezulu (okungukuthi, ukuphepha okusebenzayo) kanye nokuphathwa kokugcinwa okujwayelekile, uma uhlelo olusebenzisa amathuluzi okuphepha luhluleka, luvame ukuholela ezingozini ezinkulu zokuphepha. (Ingcaphuno: Ukuphathwa Okujwayelekile Kokugadwa Kokuphepha No. 3 (2014) No. 116, Imibono Eqondisayo Yokuphathwa Kokuphepha Kombuso Ekuqiniseni Ukuphathwa Kwezinhlelo Zokuphepha Kwamakhemikhali)

Incazelo yokuzimela kwe-SIS ku-BPCS: Uma ukusebenza okuvamile kwe-BPCS control loop kuhlangabezana nezidingo ezilandelayo, ingasetshenziswa njengesendlalelo esizimele sokuvikela, i-BPCS control loop kufanele ihlukaniswe ngokomzimba ne-SIF yesistimu yokuphepha (SIS), okuhlanganisa inzwa, isilawuli kanye nesici sokugcina.

Umehluko phakathi kwe-BPCS ne-SIS:

Imisebenzi yezinhloso ezahlukene: umsebenzi wokukhiqiza / umsebenzi wokuphepha;

Izimo zokusebenza ezahlukene: ukulawula kwesikhathi sangempela / isikhathi esinqunyelwe kakhulu sokukhiya;

Izidingo ezahlukene zokuthembeka: I-SIS idinga ukuthembeka okuphezulu;

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

Izindlela ezahlukene zokusebenzisa nokunakekela: I-SIS iqine kakhulu;

Ukuxhumana kwe-BPCS kanye ne-SIS

Ukuthi i-BPCS kanye ne-SIS zingabelana ngezakhi kungacatshangelwa futhi kunqunywe kusukela ezicini ezintathu ezilandelayo:

Izidingo kanye nezinhlinzeko zezincazelo ezijwayelekile, izidingo zokuphepha, indlela ye-IPL, ukuhlolwa kwe-SIL;

Ukuhlolwa kwezomnotho (uma nje kuhlangatshezwana nezidingo zokuphepha eziyisisekelo), isib. ukuhlaziywa kwe-ALARP (okuphansi ngangokunokwenzeka);

Abaphathi noma onjiniyela banqunywa ngokusekelwe kokuhlangenwe nakho kanye nentando yabo.

Noma ngabe yikuphi, kudingeka isidingo esincane sokuhlangabezana nezidingo zemithethonqubo nezindinganiso.