Mu dziko la cryogenics, kufunika kwa kutenthetsa bwino komanso kodalirika ndikofunikira kwambiri, makamaka pankhani yonyamula zakumwa zoziziritsidwa kwambiri monga helium yamadzimadzi.Mapaipi okhala ndi jekete la vacuum(VJP) ndi ukadaulo wofunikira kwambiri pochepetsa kusamutsa kutentha ndikuwonetsetsa kuti madzi oundana monga helium yamadzimadzi amakhalabe kutentha kotsika komwe kumafunikira panthawi yoyenda. Nkhaniyi ikufotokoza za ntchito yofunika kwambiri ya mapaipi okhala ndi vacuum jacketed mu ntchito zamadzimadzi za helium.

Kodi Mapaipi Opangidwa ndi Vacuum Jekete ndi Chiyani?

Mapaipi okhala ndi jekete la vacuumMapaipi otetezedwa, omwe amadziwikanso kuti mapaipi otetezedwa, ndi mapaipi apadera omwe ali ndi gawo loteteza mpweya pakati pa makoma awiri a mapaipi ozungulira. Gawo loteteza mpweya limeneli limagwira ntchito ngati chotchinga cha kutentha chothandiza kwambiri, choletsa kusamutsa kutentha kupita kapena kuchokera mkati mwa chitolirocho. Pa helium yamadzimadzi, yomwe imawira kutentha kwa pafupifupi 4.2 Kelvin (-268.95°C), kusunga kutentha kotsika panthawi yoyenda ndikofunikira kuti tipewe kuuma ndi kutayika kwa zinthu.

Kufunika kwa Mapaipi Opangidwa ndi Vacuum mu Machitidwe a Helium a Madzi

Helium yamadzimadzi imagwiritsidwa ntchito kwambiri m'mafakitale monga chisamaliro chaumoyo (cha makina a MRI), kafukufuku wasayansi (mu ma accelerator a tinthu tating'onoting'ono), ndi kufufuza mlengalenga (poziziritsa zigawo za mlengalenga). Kunyamula helium yamadzimadzi kudutsa mtunda popanda kutentha kwakukulu ndikofunikira kwambiri pochepetsa zinyalala ndikuwonetsetsa kuti ntchitoyi ikuyenda bwino.Mapaipi okhala ndi jekete la vacuumZapangidwa kuti zisunge madziwo kutentha komwe amafunikira pochepetsa kwambiri kusinthana kwa kutentha.

Kuchepetsa Kuchuluka kwa Kutentha ndi Kutayika kwa Nthunzi

Chimodzi mwa zabwino zazikulu zamapaipi okhala ndi jekete la vacuumMu makina amadzimadzi a helium, helium imatha kuletsa kutentha kulowa. Chotchinga cha vacuum chimapereka chotchinga chabwino kwambiri ku magwero akunja a kutentha, zomwe zimachepetsa kwambiri kuchuluka kwa madzi omwe amatuluka. Izi ndizofunikira kwambiri kuti helium ikhalebe ndi madzi panthawi yoyenda patali. Popanda kugwiritsa ntchito chotchinga cha vacuum, helium imatha kusungunuka mwachangu, zomwe zimapangitsa kuti pakhale kutayika kwa ndalama komanso kusagwira ntchito bwino.

Kulimba ndi Kusinthasintha

Mapaipi okhala ndi jekete la vacuumMapaipi amenewa amagwiritsidwa ntchito m'makina amadzimadzi a helium amapangidwira kuti akhale olimba, nthawi zambiri amapangidwa ndi chitsulo chosapanga dzimbiri kapena zinthu zina zomwe zimatha kupirira kutentha kwambiri komanso kupsinjika kwa makina. Mapaipi awa amabweranso m'mapangidwe osinthasintha, zomwe zimapangitsa kuti zikhale zosavuta kuyika m'makina omwe angafunike njira zopindika kapena zosinthasintha. Kusinthasintha kumeneku kumawapangitsa kukhala abwino kwambiri pazinthu zovuta monga ma laboratories, matanki osungiramo zinthu a cryogenic, ndi maukonde oyendera.

Mapeto

Mapaipi okhala ndi jekete la vacuumAmagwira ntchito yofunika kwambiri poyendetsa helium yamadzimadzi, kupereka kutentha kothandiza kwambiri komwe kumachepetsa kutentha komanso kuchepetsa kutayika. Mwa kusunga umphumphu wa madzi a cryogenic, mapaipi awa amathandiza kusunga helium yamtengo wapatali ndikuchepetsa ndalama zogwirira ntchito. Pamene mafakitale akupitiliza kupanga zatsopano ndikufunika makina apamwamba kwambiri a cryogenic, udindo wamapaipi okhala ndi jekete la vacuumzidzangofunika kwambiri. Ndi mphamvu zawo zosayerekezeka komanso kulimba,mapaipi okhala ndi jekete la vacuumikadali ukadaulo wofunikira kwambiri pankhani ya cryogenics, makamaka pakugwiritsa ntchito helium yamadzimadzi.

Pomaliza,mapaipi okhala ndi jekete la vacuum(VJP) ndizofunikira kwambiri pakugwiritsa ntchito helium yamadzimadzi, zomwe zimathandiza kunyamula bwino, kuchepetsa zinyalala, komanso kuonetsetsa kuti makina oyeretsera madzi a cryogenic ndi otetezeka komanso odalirika.

chitoliro chopangidwa ndi jekete cha vacuum:https://www.hlcryo.com/vacuum-insulated-pipe-series/