HANGZHOU NUZHUO TECHNOLOGY GROUP CO., LTD.

Malingaliro oyambira"BPCS"

Dongosolo loyang'anira ndondomeko: Imayankha ma siginecha olowera kuchokera munjira, zida zokhudzana ndi dongosolo, makina ena osinthika, ndi/kapena wogwiritsa ntchito, ndikupanga dongosolo lomwe limapangitsa kuti njirayo ndi zida zokhudzana ndi dongosolo zizigwira ntchito momwe zimafunikira, koma sizimagwira ntchito zachitetezo chazida zilizonse ndi SIL≥1 yolengezedwa. (Kaphatikizidwe: GB/T 21109.1-2007 (IEC 61511-1: 2003, IDT) Chitetezo chogwira ntchito chachitetezo chogwiritsidwa ntchito pamakampani opanga - Gawo 1: Zomangamanga, matanthauzidwe, dongosolo, zida ndi mapulogalamu apulogalamu 3.3.2)

Basic Process Control System: Imayankha ma siginecha olowera kuchokera mumiyezo yamachitidwe ndi zida zina zofananira, zida zina, makina owongolera, kapena oyendetsa. Malinga ndi lamulo lowongolera ndondomeko, algorithm ndi njira, chizindikirocho chimapangidwa kuti chizindikire magwiridwe antchito ndi zida zake zofananira. Muzomera za petrochemical kapena zomera, njira yoyendetsera ntchito nthawi zambiri imagwiritsa ntchito distributed control system (DCS). Makina oyang'anira njira zoyambira sayenera kuchita ntchito zotetezedwa za SIL1, SIL2, SIL3. (Kaphatikizidwe: GB/T 50770-2013 Code for design of petrochemical safety instrumented systems 2.1.19)

『SIS』

Chitetezo cha zida zachitetezo: Chida chogwiritsidwa ntchito kuti chigwiritse ntchito chimodzi kapena zingapo zachitetezo cha chida. SIS ikhoza kukhala ndi kuphatikiza kulikonse kwa sensor, logic solver, ndi chinthu chomaliza.

Chida chitetezo ntchito; SIF ili ndi SIL yapadera kuti ikwaniritse ntchito zotetezera chitetezo, zomwe zitha kukhala ntchito yoteteza chitetezo cha zida komanso ntchito yowongolera chitetezo cha zida.

Mulingo wodalirika wachitetezo; SIL imagwiritsidwa ntchito kufotokoza milingo yosiyana (imodzi mwa milingo 4) pazofunikira zachitetezo chachitetezo cha zida zoperekedwa ku zida zachitetezo. SIL4 ndiye mulingo wapamwamba kwambiri wachitetezo ndipo SIL1 ndiyotsika kwambiri.
(Katundu: GB/T 21109.1-2007 (IEC 61511-1: 2003, IDT) Chitetezo chogwira ntchito cha zida zogwiritsira ntchito makina opangira ntchito Gawo 1: Chikhazikitso, matanthauzo, dongosolo, hardware ndi mapulogalamu a zofunikira 3.2.72 / 3.2.71 / 3.2.74)

Chitetezo cha zida zachitetezo: Chida chogwiritsidwa ntchito chomwe chimagwira ntchito imodzi kapena zingapo zotetezedwa. (Kamutu: GB/T 50770-2013 Code for design of petrochemical security instrumented systems 2.1.1);

Kusiyana pakati pa BPCS ndi SIS

Chitetezo chida dongosolo (SIS) popanda dongosolo kulamulira ndondomeko BPCS (monga anagawira dongosolo kulamulira DCS, etc.), kupanga nthawi zambiri matalala kapena malo amodzi, kamodzi chipangizo kupanga kapena malo kungachititse ngozi chitetezo, akhoza yomweyo kuchitapo zolondola, kotero kuti kupanga njira bwinobwino kusiya kuthamanga kapena kuitanitsa basi anadziwiratu chitetezo boma, ayenera kukhala ndi kudalirika mkulu (ndiko kuti ndi yokhazikika dongosolo chitetezo kutsogolera chitetezo, ndi kulephera kwa dongosolo chitetezo chokhazikika) ngozi zachitetezo. (Katundu: General Administration of Safety Supervision No. 3 (2014) No. 116, Malingaliro Otsogolera a State Administration of Safety Supervision on Strengthening the Management of Chemical Safety Instrumentation Systems)

Tanthauzo la SIS kudziyimira pawokha ku BPCS: Ngati ntchito yachibadwa ya BPCS control loop ikukwaniritsa zofunikira izi, ingagwiritsidwe ntchito ngati wosanjikiza wodzitetezera, BPCS control loop iyenera kupatulidwa mwakuthupi ndi chitetezo cha chitetezo (SIS) ntchito yotetezera chitetezo SIF, kuphatikizapo sensor, controller ndi chinthu chomaliza.

Kusiyana pakati pa BPCS ndi SIS:

Ntchito zosiyanasiyana zacholinga: ntchito yopanga / chitetezo;

Mayiko osiyanasiyana ogwiritsira ntchito: kuwongolera nthawi yeniyeni / kutsekereza nthawi yopitilira malire;

Zofunikira zodalirika zosiyana: SIS imafuna kudalirika kwakukulu;

Njira zosiyanasiyana zowongolera: kuwongolera kosalekeza monga chiwongolero chachikulu / malingaliro monga chiwongolero chachikulu;

Njira zosiyanasiyana zogwiritsira ntchito ndi kukonza: SIS ndi yovuta kwambiri;

Kulumikizana kwa BPCS ndi SIS

Kaya BPCS ndi SIS zitha kugawana zigawo zitha kuganiziridwa ndikutsimikiziridwa kuchokera muzinthu zitatu izi:

Zofunikira ndi mafotokozedwe amtundu wokhazikika, zofunikira zachitetezo, njira ya IPL, kuwunika kwa SIL;

Kuwunika kwachuma (ngati zofunikira zachitetezo zikukwaniritsidwa), mwachitsanzo, kusanthula kwa ALARP (kochepera momwe kungathekere);

Oyang'anira kapena mainjiniya amatsimikiziridwa kutengera zomwe wakumana nazo komanso kufuna kwawo.

Mulimonsemo, zofunikira zochepa kuti zikwaniritse zofunikira za malamulo ndi miyezo zimafunikira.