Nyob rau hauv lub ntiaj teb no ntawm cryogenics, qhov kev xav tau rau kev ua tau zoo thiab txhim khu kev qha thermal rwb thaiv tsev yog qhov tseem ceeb, tshwj xeeb tshaj yog thaum nws los txog rau kev thauj mus los ntawm supercooled kua zoo li kua helium.Lub tshuab nqus tsev vacuum cov kav dej(VJP) yog ib qho tseem ceeb thev naus laus zis hauv kev txo qis kev hloov pauv cua sov thiab ua kom ntseeg tau tias cov kua dej cryogenic xws li cov kua helium nyob twj ywm ntawm qhov xav tau qis qis thaum caij tsheb thauj mus los. Kab lus no tshawb txog lub luag haujlwm tseem ceeb ntawm lub tshuab nqus tsev cov kav dej hauv cov kua helium.

Vacuum Jacketed Pipes yog dab tsi?

Lub tshuab nqus tsev vacuum cov kav dej, tseem hu ua cov kav dej insulated, yog cov kav dej tshwj xeeb uas muaj lub tshuab nqus tsev rwb thaiv tsev ntawm ob lub yeeb nkab concentric phab ntsa. Lub tshuab nqus tsev txheej no ua haujlwm zoo heev thermal thaiv, tiv thaiv kev hloov ntawm tshav kub mus rau lossis los ntawm cov ntsiab lus ntawm cov yeeb nkab. Rau cov kua helium, uas boils ntawm qhov kub ntawm ib ncig ntawm 4.2 Kelvin (-268.95 ° C), tswj qhov kub qis thaum lub sij hawm thauj mus los yog qhov tseem ceeb kom tsis txhob evaporation thiab poob ntawm cov khoom.

Qhov tseem ceeb ntawm Nqus Jacketed Pipes hauv Liquid Helium Systems

Cov kua helium yog siv dav hauv kev lag luam xws li kev kho mob (rau MRI cov cav tov), ​​kev tshawb fawb tshawb fawb (hauv particle accelerators), thiab kev tshawb nrhiav qhov chaw (kom txias cov khoom siv dav hlau). Kev thauj cov kua helium hla qhov kev ncua deb yam tsis muaj qhov kub thiab txias yog qhov tseem ceeb rau kev txo cov khib nyiab thiab ua kom cov txheej txheem ua haujlwm.Lub tshuab nqus tsev vacuum cov kav dejyog tsim los ua kom cov kua dej ntawm nws qhov kub thiab txias los ntawm kev txo cov cua kub sib txawv.

Txo kub nce thiab evaporation poob

Ib qho ntawm cov txiaj ntsig tseem ceeb ntawmlub tshuab nqus tsev jacketed kavnyob rau hauv cov kua helium systems yog lawv lub peev xwm los tiv thaiv tshav kub ingress. Lub tshuab nqus tsev txheej muab ib qho yuav luag zoo meej barrier rau sab nraud tshav kub qhov chaw, txo tus nqi boil-tawm. Qhov no yog qhov tseem ceeb rau kev tswj xyuas cov kua hauv lub xeev ntawm helium thaum thauj mus los ntev. Yog tsis siv lub tshuab nqus tsev rwb thaiv tsev, helium yuav evaporate sai, ua rau ob qho tib si nyiaj txiag poob thiab kev ua haujlwm tsis zoo.

Durability thiab Flexibility

Lub tshuab nqus tsev vacuum cov kav dejsiv nyob rau hauv cov kua helium systems yog tsim los rau durability, feem ntau tsim nrog stainless hlau los yog lwm yam ntaub ntawv uas muaj peev xwm tiv taus huab cua kub thiab mechanical kev nyuaj siab. Cov kav dej no kuj tuaj yeem hloov kho, tso cai rau kev teeb tsa yooj yim hauv cov tshuab uas yuav xav tau txoj hauv kev nkhaus lossis hloov pauv. Qhov kev hloov pauv no ua rau lawv zoo tagnrho rau cov txheej txheem nyuaj xws li chaw soj nstuam, cryogenic cia tso tsheb hlau luam, thiab kev thauj mus los.

Xaus

Lub tshuab nqus tsev vacuum cov kav dejua lub luag haujlwm tseem ceeb hauv kev thauj mus los ntawm cov kua helium, muab cov thermal rwb thaiv tsev zoo heev uas txo cov cua sov nce thiab txo qhov poob. Los ntawm kev tswj xyuas kev ncaj ncees ntawm cov kua cryogenic, cov kav dej no pab khaws cov helium muaj txiaj ntsig thiab txo cov nqi ua haujlwm. Raws li kev lag luam txuas ntxiv rau kev tsim kho tshiab thiab xav tau ntau dua cov tshuab cryogenic, lub luag haujlwm ntawmlub tshuab nqus tsev jacketed kavyuav tsuas loj hlob hauv qhov tseem ceeb. Nrog lawv cov thermal kev ua tau zoo thiab durability,lub tshuab nqus tsev jacketed kavnyob twj ywm ib qho tseem ceeb thev naus laus zis hauv kev ua haujlwm ntawm cryogenics, tshwj xeeb tshaj yog rau kev siv kua helium.

Hauv kev xaus,lub tshuab nqus tsev jacketed kav(VJP) yog qhov tseem ceeb hauv kev siv cov kua helium, ua kom muaj kev thauj mus los zoo, txo cov khib nyiab, thiab ua kom muaj kev nyab xeeb thiab kev ntseeg siab ntawm cov tshuab cryogenic.

Lub tshuab nqus tsev vacuum tube:https://www.hlcryo.com/vacuum-insulated-pipe-series/