Chifukwa chiyani ma valve a cryogenic amagwiritsa ntchito maboneti aatali a khosi

Mavavu oyenerera kutentha kwapakatikati -40℃～-196℃ amatchedwa mavavu otentha otsika, ndipo mavavu otere nthawi zambiri amagwiritsa ntchito maboneti azitali zazitali.

Boneti lalitali la khosi limagwiritsidwa ntchito kunena kuti valavu ya cryogenic imaphatikizapo valavu yotsekera mwadzidzidzi, cryogenic globe valve, cryogenic check valve, LNG special cryogenic valve, NG yapadera cryogenic valve, ndi zina zotero, zomwe zimagwiritsidwa ntchito makamaka muzomera za mankhwala monga monga matani 300,000 a ethylene ndi gasi wachilengedwe wokhala ndi liquefied.The linanena bungwe madzi otsika kutentha TV monga ethylene, madzi okosijeni, madzi wa hydrogen, liquefied gasi, liquefied mafuta mafuta, etc., osati kuyaka ndi kuphulika, komanso gasify pamene mkangano, ndi voliyumu amakula kambirimbiri pamene gasified. .

Zovala zazitali zapakhosi zimafunika chifukwa:

(1) Boneti lalitali la khosi limakhala ndi ntchito yoteteza bokosi lotseketsa valavu yotsika, chifukwa kulimba kwa bokosi lopangira zinthu ndi chimodzi mwa makiyi a valve yotsika kutentha.Ngati pali kutayikira pa bokosi loyikamo, kumachepetsa kuziziritsa ndikupangitsa kuti mpweya wamadzimadzi usungunuke.Pa kutentha kochepa, pamene kutentha kumachepa, kusungunuka kwapang'onopang'ono kumatha pang'onopang'ono, ndipo ntchito yowonongeka imachepa moyenerera.Chifukwa cha kutayikira kwa sing'anga, kunyamula ndi tsinde la valavu kumaundana, zomwe zimakhudza magwiridwe antchito a tsinde la valve komanso zimapangitsa kuti tsinde la valve lisunthike mmwamba ndi pansi.Kulongedza katundu, kuchititsa kutayikira kwakukulu.Chifukwa chake, ndikofunikira kuwonetsetsa kuti kutentha kwa gawo lodzaza kuli pamwamba pa 8 ° C.

(2) Chivundikiro cha valavu cha khosi lalitali ndichosavuta kukulunga zida zoziziritsa kuzizira kuti mupewe kutayika kwa mphamvu zoziziritsa za ma valve otsika.

(3) Kapangidwe ka khosi lalitali la valavu ya cryogenic ndi yabwino m'malo mwake gawo lalikulu la valve pochotsa chivundikiro cha valve.Popeza ndondomeko ya mapaipi ndi ma valve mu gawo lozizira la zipangizo nthawi zambiri zimayikidwa mu \ 'cold box\', chivundikiro cha valve chautali wautali chimatha kudutsa pa "cold box" khoma.Posintha zigawo zazikulu za valve, ndikofunikira kuchotsa ndikusintha chivundikiro cha valve popanda kusokoneza thupi la valve.Thupi la valavu ndi payipi zimawotchedwa mu thupi limodzi, zomwe zimachepetsa kutuluka kwa bokosi lozizira momwe zingathere ndikuwonetsetsa kulimba kwa valve.