1. Khetha i-valve yesevisi ye-cryogenic
Ukukhetha i-valve yezinhlelo zokusebenza ze-cryogenic kungaba nzima kakhulu. Abathengi kufanele bacabangele izimo ezisebhodini nasembonini. Ngaphezu kwalokho, izakhiwo ezithile zoketshezi lwe-cryogenic zidinga ukusebenza kwe-valve ethile. Ukukhetha kahle kuqinisekisa ukwethembeka kwezitshalo, ukuvikelwa kwemishini, nokusebenza okuphephile. Imakethe ye-LNG yomhlaba wonke isebenzisa imiklamo emibili eyinhloko yama-valve.
Umsebenzisi kufanele anciphise usayizi ukuze agcine ithangi legesi yemvelo lilincane ngangokunokwenzeka. Lokhu bakwenza nge-LNG (igesi yemvelo ewuketshezi, igesi yemvelo ewuketshezi). Ngokupholisa cishe igesi yemvelo iba uketshezi. -165 ° C. Kulokhu kushisa, i-valve yokuhlukanisa eyinhloko kufanele isasebenza
2. Yini ethinta ukwakheka kwe-valve?
Izinga lokushisa linethonya elibalulekile ekwakhiweni kwe-valve. Isibonelo, abasebenzisi bangase bayidinge ezindaweni ezidumile njenge-Middle East. Noma, ingase ilungele izindawo ezibandayo ezifana nolwandle olushisayo. Zombili izindawo zingathinta ukuqina nokuqina kwe-valve. Izingxenye zala ma-valve zihlanganisa umzimba we-valve, ibhonethi, isiqu, i-stem seal, i-valve yebhola kanye nesihlalo sevalvu. Ngenxa yokwakheka kwezinto ezihlukile, lezi zingxenye ziyakhula futhi zinciphe ngamazinga okushisa ahlukene.
Izinketho zesicelo se-Cryogenic
Inketho 1:
Ama-opharetha asebenzisa ama-valve ezindaweni ezibandayo, njengezinsimbi zokusebenzisa uwoyela ezilwandle ezishisayo.
Inketho 2:
Ama-opharetha asebenzisa ama-valve ukuze alawule uketshezi olungaphansi kakhulu kweqhwa.
Endabeni yamagesi avutha kakhulu, njengegesi yemvelo noma umoya-mpilo, i-valve kufanele futhi isebenze ngendlela efanele uma kwenzeka umlilo.
3.Ingcindezi
Kukhona ukunqwabelana kwengcindezi ngesikhathi sokuphatha isiqandisi okuvamile. Lokhu kungenxa yokwanda kokushisa kwemvelo kanye nokwakheka kwesitimu okwalandela. Ukunakekelwa okukhethekile kufanele kuthathwe lapho uklama i-valve / uhlelo lwamapayipi. Lokhu kuvumela ingcindezi ukuthi yakheke.
4.Izinga lokushisa
Ukushintsha kwezinga lokushisa ngokushesha kungathinta ukuphepha kwabasebenzi nezimboni. Ngenxa yokwakheka kwezinto ezihlukene kanye nobude besikhathi abafakwa ngaphansi kwesiqandisi, ingxenye ngayinye ye-valve ye-cryogenic iyakhula futhi inkontileka ngamanani ahlukene.
Enye inkinga enkulu lapho uphatha iziqandisi ukwanda kokushisa okuvela endaweni ezungezile. Lokhu kwanda kokushisa yikho okwenza abakhiqizi bahlukanise ama-valve namapayipi
Ngaphezu kobubanzi bokushisa obuphezulu, i-valve kufanele futhi ihlangabezane nezinselele ezinkulu. Nge-helium ewuketshezi, izinga lokushisa legesi eliwuketshezi lehla liye ku-270 ° C.
5.Umsebenzi
Ngokuphambene, uma izinga lokushisa lehla lifinyelela kuziro ngokuphelele, ukusebenza kwevalvu kuba inselele kakhulu. Ama-valve e-Cryogenic axhuma amapayipi namagesi awuketshezi endaweni ezungezile. Ikwenza lokhu ngezinga lokushisa elizungezile. Umphumela ungaba umehluko wokushisa ofinyelela ku-300 ° C phakathi kwepayipi nendawo ezungezile.
6.Ukuphumelela
Umehluko wezinga lokushisa udala ukugeleza kokushisa kusuka endaweni efudumele kuya endaweni ebandayo. Izolimaza umsebenzi ojwayelekile we-valve. Iphinde inciphise ukusebenza kahle kwesistimu ezimweni ezimbi kakhulu. Lokhu kuyakhathaza ikakhulukazi uma iqhwa lakha ekugcineni okufudumele.
Kodwa-ke, ekusetshenzisweni kwezinga lokushisa eliphansi, le nqubo yokushisa engenzi lutho nayo yenziwe ngamabomu. Le nqubo isetshenziselwa ukuvala isiqu se-valve. Ngokuvamile, isiqu se-valve sivalwa ngepulasitiki. Lezi zinto azikwazi ukumelana namazinga okushisa aphansi, kodwa izimpawu zensimbi ezisebenza kakhulu zezingxenye ezimbili, ezihamba kakhulu ngezindlela eziphambene, zibiza kakhulu futhi cishe akunakwenzeka.
7.Ukubekwa uphawu
Kukhona isixazululo esilula kakhulu kule nkinga! Uletha ipulasitiki esetshenziselwa ukuvala isiqu se-valve endaweni lapho izinga lokushisa livamile. Lokhu kusho ukuthi i-sealant yesiqu se-valve kufanele igcinwe kude noketshezi.
8.Three offset rotary tight isolation valve
Lawa ma-offset avumela i-valve ukuthi ivuleke futhi ivaleke. Banokungqubuzana okuncane kakhulu kanye nokungqubuzana ngesikhathi sokusebenza. Iphinde isebenzisa i-stem torque ukwenza i-valve iqine kakhulu. Enye yezinselelo zokugcinwa kwe-LNG imigodi evaleleke. Kule migodi, uketshezi lungavuvuka kakhulu izikhathi ezingaphezu kuka-600. Ivalvu yokuhlukanisa eqinile ejikeleza kathathu iqeda le nselele.
9.Ama-valve okuhlola i-baffle eyodwa nakabili
Lawa ma-valve ayingxenye ebalulekile emishinini yokuncibilikisa amanzi ngoba avimbela umonakalo obangelwa ukugeleza okubuyela emuva. Izinto ezibonakalayo nosayizi yizinto ezibalulekile ezicatshangelwayo ngoba ama-valve e-cryogenic ayabiza. Imiphumela yamavalvu angalungile ingaba yingozi.
Onjiniyela bakuqinisekisa kanjani ukucinana kwamavalvu e-cryogenic?
Ukuvuza kubiza kakhulu uma umuntu ecabangela izindleko zokuqala igesi ibe isiqandisi. Kuyingozi futhi.
Inkinga enkulu ngobuchwepheshe be-cryogenic ukuthi kungenzeka ukuvuza kwesihlalo se-valve. Abathengi bavame ukubukela phansi ukukhula kwe-radial kanye nomugqa wesiqu ngokuhlobene nomzimba. Uma abathengi bekhetha i-valve efanele, bangagwema izinkinga ezingenhla.
Inkampani yethu incoma ukusebenzisa ama-valve okushisa aphansi enziwe ngensimbi engagqwali. Ngesikhathi sokusebenza ngegesi e-liquefied, impahla isabela kahle kuma-gradients okushisa. Ama-valve e-Cryogenic kufanele asebenzise izinto zokuvala ezifanele ezinokuqina okungafika kumabha ayi-100. Ukwengeza, ukwelula ibhonethi kuyisici esibaluleke kakhulu ngoba sinquma ukuqina kwe-stem sealant.
Isikhathi sokuthumela: May-13-2020