Kwalban Dewar kwalban, wanda Sir James Dewar ya ƙirƙira a cikin 1892, kwantena ne na ajiyar ajiya. Ana amfani dashi sosai a cikin jigilar kaya da ajiyar matsakaiciyar ruwa (nitrogen mai ruwa, oxygen mai ruwa, argon ruwa, da sauransu) da kuma tushen sanyi na wasu kayan aikin sanyaya. Dewar cryogenic ya kunshi filoli biyu, ɗayan a ɗayan kuma an haɗa shi a wuya. Tazarar da ke tsakanin flasks ɗin biyu wani ɓangare na ba da iska, yana ƙirƙirar wuri mai kusa, wanda ke rage tasirin canja wurin zafi ta hanyar magudi ko haɗuwa.

samfurin amfani:

1.An fi amfani dashi don jigilar kaya da ajiyar iskar oxygen mai ruwa, nitrogen mai ruwa, argon ruwa da iskar gas
2. High injin multilayer rufi gefen tabbatar low evaporation kudi, da kuma mashiga bawul kayan aiki tabbatar da kyau yi
3. A-ginannen evaporator ta atomatik samar 9nm3 / h barga m gas
4. Ana amfani da iskar gas mai matse iska a cikin na'urar matsewa
5. Iyakacin duniya tare da daidaitaccen ma'aunin CGA na duniya
6. A musamman damping zobe zane iya saduwa da bukatun na m sufuri

Anyi amfani da kwalaben Dewar cryogenic sosai wajen sarrafa inji, yankan laser, gina jirgi, likitanci, kiwon dabbobi, semiconductor, abinci, sinadarin mai saurin zafin jiki, sararin samaniya, sojoji da sauran masana'antu da filayen. Samfurin mai amfani yana da fa'idodi na babban ƙarfin ajiya, ƙaramin kuɗin sufuri, aminci mai kyau, rage ƙazantar gas da sauƙin gudanarwa.

Gabaɗaya magana, Dewar kwalbar tana da bawuloli huɗu, wato bawul na amfani da ruwa, bawul na amfani da gas, bawul ɗin iska da bawul mai amfani. Bugu da kari, akwai ma'aunin karfin gas da ma'aunin matakin ruwa. Ba a samar da kwalbar Dewar kawai da bawul na aminci ba, har ma da fashewar diski [6]. Da zarar matsafin gas a cikin silinda ya wuce matsin tafiya na bawul ɗin tsaro, bawul ɗin aminci zai yi tsalle nan da nan kuma ya shaye kansa ta atomatik kuma ya sauke matsa lamba. Idan bawul din tsaro ya fadi ko kuma silinda ya lalace ta hanyar hadari, matsin lamba a cikin silinda ya tashi da karfi sosai zuwa wani mataki, saitin farantin fashewar zai fashe kai tsaye, kuma matsin lamba a cikin silinda zai ragu zuwa matsin yanayi a lokaci. Gilashin Dewar suna adana iskar oxygen mai magani, wanda ke ƙaruwa sosai da ƙarfin ajiyar oxygen.