Yuav ua li cas paub qhov txawv High-purity Helium los ntawm Ordinary Helium?

Helium, raws li qhov thib ob ntau tshaj plaws nyob rau hauv lub ntiaj teb no, plays lub luag hauj lwm tseem ceeb nyob rau hauv ntau lub teb nrog nws cov cim lub cev thiab tshuaj. Ntawm lawv, txawm tias high-purityheliumthiab zoo tib yamheliumyog ob leeghelium, lawv muaj qhov sib txawv loj hauv purity, daim ntawv thov thiab cov yam ntxwv ua haujlwm.

Helium, raws li qhov thib ob ntau tshaj plaws nyob rau hauv lub ntiaj teb no, plays lub luag hauj lwm tseem ceeb nyob rau hauv ntau lub teb nrog nws cov cim lub cev thiab tshuaj. Ntawm lawv, txawm tias high-purityheliumthiab zoo tib yamheliumyog ob leeghelium, lawv muaj qhov sib txawv loj hauv purity, daim ntawv thov thiab cov yam ntxwv ua haujlwm.

Ua ntej tshaj plaws,heliumYog cov tshuaj lom neeg muaj cov tshuaj lom neeg nrog cov lej atomic 2, tsis muaj nuj nqis tsawg, tsis muaj kob, tsis muaj ntxhiab thiab tsis muaj nplaim taws.HeliumFeem ntau yog siv rau hauv kev ua kom txias, cua sov, aerospace, semiconductor manufacturing, roj tsom xam thiab lwm yam kev lag luam, thiab yog siv dav hauv kev tshawb fawb thiab kev tsim khoom.

Nyob rau hauv cov nqe lus ntawm gas qhov chaw, zoo tib yamheliumfeem ntau yog los ntawmheliumnyob rau hauv natural gas, uas yog tau los ntawm kev sib cais thiab purification.HeliumFeem ntau muaj nyob rau hauv cov roj av thiab roj av thiab cov dej hauv av. Nws lub ntsiab tivthaiv yoghelium-4 isotope, nrog rau cov ntsiab lus ntawm kwv yees li 0.0005% ntawm cov roj. Ib txwmheliumroj tau dhau los ua cov txheej txheem purification kom tshem tawm cov dej noo, oxygen, nitrogen, impurities, thiab lwm yam.heliumgas nrog purity siab dua tuaj yeem tau txais.

High-purityheliummuaj ntau dua purity, feem ntau yog xa mus rau purity ntawm ntau tshaj 99.999% (tsib "kaum" ntawm purity). High-purityheliumFeem ntau yog siv rau hauv kev tshawb fawb thiab kev tsim khoom, xws li nuclear magnetic resonance, superconducting hlau nplaum, lasers, semiconductor manufacturing thiab lwm yam. High-purityheliumfeem ntau undergoes ntxiv nplua kev sib cais thiab purification txheej txheem kom tshem tawm ntau impurities thiab tswj isotope ratios kom tau raws liheliumpurity yuav tsum tau nyob rau hauv tej teb.

Secondly, nyob rau hauv cov nqe lus ntawm purity, high-purityheliumfeem ntau yog purer dua li qubhelium. Purity feem ntau yog ntsuas los ntawm cov qauv xws li "tsib cuaj" (99.999%), "rau cuaj" (99.9999%), thiab "xya cuaj" (99.99999%). Lub siab purity yuav tsum tau rau high-purityheliumyog vim hais tias nyob rau hauv ib co daim ntawv thov teb, xws li semiconductor manufacturing thiab nuclear magnetic resonance, txawm lub xub ntiag ntawm kab impurities tej zaum yuav muaj kev cuam tshuam loj heev rau cov khoom ua tau zoo thiab kev sim.

Thirdly, high-purityheliumthiab zoo tib yamheliumkuj txawv hauv daim ntawv thov teb. Ib txwmheliumFeem ntau yog siv nyob rau hauv cov vuam zoo tib yam, laser txiav, ductile hlau gas shielded vuam tshuab thiab lwm yam teb. Hauv cov teb no, purity yuav tsum tau rauheliumkuj tsawg, thiab zoo tib yamheliumtuaj yeem ua tau raws li feem ntau ntawm cov kev xav tau. High-purityheliumyog siv nyob rau hauv ib co high-tech teb, xws li optical fiber manufacturing, superconducting scientific kev tshawb fawb, nuclear zog tshawb fawb, semiconductor manufacturing, thiab lwm yam.

Ntxiv nrog rau purity thiab daim ntawv thov teb, high-purityheliumthiab zoo tib yamheliumkuj txawv ntawm kev ua tau zoo. High-purityheliummuaj cov yam ntxwv ntawm cov tshuaj ruaj khov, zoo heev thermal conductivity thiab tsawg ntom. Nws cov tshuaj stability ua rau nws nyuaj rau high-purityheliumkom hnov ​​​​mob chemically nrog lwm yam tshuaj, yog li ua kom nws ruaj khov thiab kev ntseeg siab hauv kev sim thiab cov txheej txheem tsim khoom. Nyob rau tib lub sijhawm, thermal conductivity ntawm high-purityheliumNws kuj yog qhov zoo heev, deb tshaj ntawm huab cua, uas ua rau nws muaj dav daim ntawv thov kev cia siab nyob rau hauv cov khoom siv tub yees, semiconductor ntau lawm, nuclear engineering thiab lwm yam. Tsis tas li ntawd, qhov tsawg ceev kom zoo dua ntawm high-purityheliumkuj tseem ua rau nws ua lub luag haujlwm diluting hauv cov roj sib tov, uas tuaj yeem txo qhov ntom ntom thiab dej tsis kam ntawm cov roj sib xyaw.