1. Khetha iValvu Yesevisi Ye-Cryogenic
UkukhethaI-Cryogenic Valvekwezicelo ze-cryogenic kungaba yinkimbinkimbi kakhulu. Abathengi kumele bacabangele izimo ezisebhodini nasefektri. Ngaphezu kwalokho, izakhiwo ezithile ze-cryogenic fluids zidinga ukusebenza kwe-valve ethile. Ukukhetha okufanele kuqinisekisa ukuthembeka kwesitshalo, ukuvikelwa kwemishini, kanye nokusebenza okuphephile. Imakethe ye-LNG yomhlaba wonke isebenzisa imiklamo emibili emikhulu ye-valve.
Umqhubi kumele anciphise usayizi ukuze agcine ithangi legesi yemvelo lincane ngangokunokwenzeka. Lokhu bakwenza nge-LNG (igesi yemvelo encibilikisiwe, igesi yemvelo encibilikisiwe). Ngokuphola kuze kube yilapho cishe igesi yemvelo iba uketshezi. -165 ° C. Kuleli zinga lokushisa, ivalvu yokuhlukanisa eyinhloko kumele isasebenza
2. Yini ethinta i-Cryogenic Valve Design
Izinga lokushisa linethonya elibalulekile ekwakhiweni kwevalvu. Isibonelo, abasebenzisi bangase balidinge ezindaweni ezidumile njengeMpumalanga Ephakathi. Noma, lingafaneleka ezindaweni ezibandayo njengezilwandle ezibandayo. Zombili izindawo zingathinta ukuqina nokuqina kwevalvu. Izingxenye zalawa mavalvu zifaka phakathi umzimba wevalvu, ibhonethi, isiqu, uphawu lwesiqu, ivalvu yebhola kanye nesihlalo sevalvu. Ngenxa yokwakheka kwezinto ezahlukene, lezi zingxenye ziyanda futhi zinciphe emazingeni okushisa ahlukene。
2.1. Izinketho zohlelo lokusebenza lwe-Cryogenic
• Abaqhubi basebenzisa ama-valve ezindaweni ezibandayo, njengezindawo zokugaya uwoyela olwandle olusenyakatho.
• Abasebenzi basebenzisa ama-valve ukuphatha uketshezi olungaphansi kakhulu kokuqandisa.
Uma kwenzeka amagesi avutha kakhulu, njengegesi yemvelo noma i-oxygen, ivalvu kumele futhi isebenze kahle uma kwenzeka umlilo.
2.2. Ukucindezela kweValve ye-Cryogenic
Kukhona ukwakheka kwengcindezi ngesikhathi sokuphathwa okuvamile kwesiqandisi. Lokhu kungenxa yokushisa okwandayo kwendawo kanye nokwakheka komusi okulandelayo. Kufanele kuqashelwe ngokukhethekile lapho kuklanywa uhlelo lwe-valve/amapayipi. Lokhu kuvumela ukwakheka kwengcindezi.
2.3. Izinga lokushisa le-Cryogenic Valve
Izinguquko ezisheshayo zokushisa zingathinta ukuphepha kwabasebenzi kanye namafektri. Ngenxa yokwakheka kwezinto ezahlukene kanye nobude besikhathi ezifakwa kuso isiqandisi, ingxenye ngayinye yevalvu ye-cryogenic iyakhula futhi inciphe ngamanani ahlukene.
Enye inkinga enkulu lapho kuphathwa ama-refrigerant ukwanda kokushisa okuvela endaweni ezungezile. Lokhu kwanda kokushisa yikho okubangela abakhiqizi ukuthi bahlukanise ama-valve namapayipi
Ngaphezu kobubanzi bokushisa obuphezulu, ivalvu kumele futhi ihlangabezane nezinselele ezinkulu. Nge-helium encibilikisiwe, izinga lokushisa legesi encibilikisiwe lehla liye ku--270 ° C.
2.4. Umsebenzi we-Cryogenic Valve
Ngakolunye uhlangothi, uma izinga lokushisa lehla liye ku-zero ngokuphelele, ukusebenza kwe-valve kuba yinselele kakhulu. Ama-valve e-cryogenic axhuma amapayipi namagesi aketshezi endaweni ezungezile. Lokhu kwenza lokhu ekushiseni okuzungezile. Umphumela ungaba umehluko wokushisa ofika ku-300 ° C phakathi kwepayipi nendawo ezungezile.
2.5. Ukusebenza Kahle Kwevalvu Ye-Cryogenic
Umehluko wokushisa udala ukugeleza kokushisa kusuka endaweni efudumele kuya endaweni ebandayo. Kuzolimaza ukusebenza okuvamile kwevalvu. Kuphinde kunciphise ukusebenza kahle kohlelo ezimweni ezimbi kakhulu. Lokhu kuyakhathaza kakhulu uma iqhwa livela ekugcineni okufudumele.
Kodwa-ke, ekusetshenzisweni kwezinga lokushisa eliphansi, le nqubo yokushisa engenzi lutho nayo yenziwa ngenhloso. Le nqubo isetshenziselwa ukuvala isiqu se-valve. Ngokuvamile, isiqu se-valve sivalwa ngepulasitiki. Lezi zinto azikwazi ukumelana namazinga okushisa aphansi, kodwa izivalo zensimbi ezisebenza kahle zezingxenye ezimbili, ezihamba kakhulu ngezindlela eziphambene, zibiza kakhulu futhi cishe azinakwenzeka.
2.6. Ukuvalwa kweValve ye-Cryogenic
Kukhona ikhambi elilula kakhulu kule nkinga! Uletha ipulasitiki esetshenziselwa ukuvala isiqu se-valve endaweni lapho izinga lokushisa livamile khona. Lokhu kusho ukuthi isivali sesiqu se-valve kumele sigcinwe kude noketshezi.
2.7. Ivalvu yokuzihlukanisa ejikelezayo ephindwe kathathu
Lezi ziphazamiso zivumela ivalvu ukuthi ivuleke futhi ivale. Ayinawo umphikisi kanye nomphikisi omncane ngesikhathi sokusebenza. Iphinde isebenzise i-stem torque ukwenza ivalvu iqine kakhulu. Enye yezinselele zokugcina i-LNG yizimbobo ezivalelekile. Kulezi zimbobo, uketshezi lungavuvukala kakhulu izikhathi ezingaphezu kuka-600. Ivalvu yokuzihlukanisa eqinile ejikeleza kathathu iqeda le nselele.
2.8. Amavalvu okuhlola ama-baffle ahamba wodwa namabili
Lawa ma-valve ayisici esibalulekile emishinini yokukhipha uketshezi ngoba avimbela umonakalo obangelwa ukugeleza okuphambene. Izinto zokwakha kanye nosayizi kuyizinto ezibalulekile okufanele uzicabangele ngoba ama-valve e-cryogenic ayabiza. Imiphumela yama-valve angalungile ingaba yingozi.
3. Onjiniyela Baqinisekisa Kanjani Ukuqina Kwama-Cryogenic Valves
Ukuvuza kubiza kakhulu uma umuntu ecabanga ngezindleko zokwenza igesi ibe yi-refrigerant kuqala. Kuyingozi futhi.
Inkinga enkulu ngobuchwepheshe be-cryogenic ukuthi kungenzeka ukuthi isihlalo se-valve sivuza. Abathengi bavame ukungakunaki ukukhula kwe-radial kanye ne-linear kwesiqu maqondana nomzimba. Uma abathengi bekhetha i-valve efanele, bangazigwema izinkinga ezingenhla.
Inkampani yethu incoma ukusebenzisa ama-valve okushisa aphansi enziwe ngensimbi engagqwali. Ngesikhathi sokusebenza ngegesi encibilikisiwe, izinto zisabela kahle ekushiseni kwezinga lokushisa.Amavalvu e-Cryogenickufanele basebenzise izinto zokuvala ezifanele ezinokuqina okufika ku-100 bar. Ngaphezu kwalokho, ukwelula i-bonnet kuyisici esibaluleke kakhulu ngoba kunquma ukuqina kwe-stem sealant.
Isikhathi sokuthunyelwe: Meyi-13-2020