Emhlabeni we-cryogenics, isidingo sokufakwa kwe-thermal ngendlela ephumelelayo nethembekile sibaluleke kakhulu, ikakhulukazi uma kuziwa ekuthuthweni koketshezi olupholile njenge-helium ewuketshezi.Vacuum amapayipi anejakhethi(I-VJP) iwubuchwepheshe obuyinhloko ekunciphiseni ukudluliswa kokushisa kanye nokuqinisekisa ukuthi uketshezi lwe-cryogenic olufana ne-helium ewuketshezi luhlala emazingeni okushisa aphansi afiswayo ngesikhathi sokuthutha. Lesi sihloko sihlola indima ebalulekile yamapayipi anejakhethi ye-vacuum ekusetshenzisweni kwe-helium ewuketshezi.

Ayini amapayipi anejakhethi ye-Vacuum?

Vacuum amapayipi anejakhethi, aziwa nangokuthi amapayipi avaleleke, amapayipi akhethekile afaka ungqimba lwe-vacuum insulation phakathi kwezindonga zamapayipi amabili agxilile. Lesi sendlalelo se-vacuum sisebenza njengesithiyo esishisayo esisebenza kahle kakhulu, esivimbela ukudluliswa kokushisa kuye noma kusuka kokuqukethwe kwepayipi. Okwe-helium ewuketshezi, ebilisa ezingeni lokushisa elicishe libe ngu-4.2 Kelvin (-268.95°C), ukugcinwa kwamazinga okushisa aphansi kanjalo ngesikhathi sokuthutha kubalulekile ukuze kugwenywe ukuhwamuka nokulahleka kwempahla.

Ukubaluleka kwamapayipi anejakhethi ye-Vacuum ku-Liquid Helium Systems

I-helium yoketshezi isetshenziswa kakhulu ezimbonini ezifana nokunakekelwa kwempilo (emishinini ye-MRI), ucwaningo lwesayensi (kuma-accelerator ezinhlayiyana), kanye nokuhlola indawo (ezokupholisa izingxenye zemikhumbi-mkhathi). Ukuthutha i-helium ewuketshezi unqamule amabanga ngaphandle kokwenyuka okukhulu kwezinga lokushisa kubalulekile ukuze kuncishiswe imfucuza kanye nokuqinisekisa ukusebenza kahle kwenqubo.Vacuum amapayipi anejakhethizenzelwe ukugcina uketshezi ekuzinga lokushisa kwalo elidingekayo ngokunciphisa kakhulu ukushintshana kokushisa.

Ukuzuza Ukushisa Okuncishisiwe kanye Nokulahlekelwa Ukuhwamuka

Enye yezinzuzo eziyinhloko zevacuum jacketed amapayipiezinhlelweni ze-helium eziwuketshezi yikhono labo lokuvimbela ukungena kokushisa. Isendlalelo se-vacuum sinikeza umgoqo ocishe uphelele emithonjeni yokushisa yangaphandle, enciphisa kakhulu izinga lokubilisa. Lokhu kubalulekile ekugcineni uketshezi lwe-helium ngesikhathi sokuhamba amabanga amade. Ngaphandle kokusetshenziswa kwe-vacuum insulation, i-helium izohwamuka ngokushesha, okuholela kukho kokubili ukulahlekelwa kwezimali kanye nokungasebenzi kahle.

Ukuqina Nokuvumelana nezimo

Vacuum amapayipi anejakhethiezisetshenziswa ku-liquid helium izinhlelo zenzelwe ukuqina, ngokuvamile zakhiwe ngensimbi engagqwali noma ezinye izinto ezingamelana namazinga okushisa aphakeme kanye nokucindezeleka kwemishini. Lawa mapayipi aphinde eze ngemiklamo eguquguqukayo, okuvumela ukufakwa kalula ezinhlelweni ezingase zidinge izindlela ezigobile noma eziguquguqukayo. Lokhu kuvumelana nezimo kubenza balungele ingqalasizinda eyinkimbinkimbi njengamalabhorethri, amathangi okugcina ama-cryogenic, namanethiwekhi ezokuthutha.

Isiphetho

Vacuum amapayipi anejakhethiidlala indima ebalulekile ekuthuthweni kwe-helium ewuketshezi, enikeza ukwahlukanisa okushisayo okusebenza kahle kakhulu okunciphisa ukuzuza kokushisa futhi kunciphise ukulahlekelwa. Ngokugcina ubuqotho be-cryogenic liquids, lawa mapayipi asiza ukugcina i-helium ebalulekile futhi anciphise izindleko zokusebenza. Njengoba izimboni ziqhubeka nokusungula futhi zidinga izinhlelo ezithuthuke kakhulu ze-cryogenic, indima yevacuum jacketed amapayipiizokhula ngokubaluleka kuphela. Ngokusebenza kwawo okushisayo okungenakuqhathaniswa nokuqina,vacuum jacketed amapayipiuhlale ubuchwepheshe obuyinhloko emkhakheni we-cryogenics, ikakhulukazi ekusetshenzisweni kwe-helium ewuketshezi.

Ekuphetheni,vacuum jacketed amapayipi(I-VJP) ibalulekile ekufakweni kwe-helium ewuketshezi, ivumela ukuthutha okuphumelelayo, ukunciphisa udoti, nokuqinisekisa ukuphepha nokuthembeka kwezinhlelo ze-cryogenic.

ipayipi ye-vacuum jacketed:https://www.hlcryo.com/vacuum-insulated-pipe-series/