Niaj hnub no, ntau tus neeg siv khoom tau tawm tswv yim hais tias: Wow, helium yog kim heev! kim tshaj lub zais pa kuv yuav, puas muaj qhov yuam kev? Tam sim no, lub hauv paus tseem ceeb ntawm helium nyob hauv lub ntiaj teb yog los ntawm Tebchaws Meskas, thiab qhov helium mine hauv Tebchaws Meskas no tuaj yeem raug mined mus txog 30 xyoo. Uas yog hais, helium tam sim no tau dhau los ua cov peev txheej tsawg.
Tam sim no, cov nqi helium thoob ntiaj teb feem ntau yog tswj los ntawm lub Hoobkas no hauv Tebchaws Meskas. Txawm nyob rau hauv Suav teb los yog Chengdu, tus nqi ntawm helium yog khi los ua nce nqi. Sib txawv ntawm lawv cov tshuaj sib txawv. Tab sis ob qho tib si gases tuaj yeem ua rau cov balloons ntab, tab sis tus nqi sib txawv yog qhov tseem ceeb. Ib lub peev xwm ntawm 40 litre ntawm helium raug nqi txog 1600 yuan, thiab ib lub kaus poom ntawm hydrogen raug nqi txog 80 yuan. Helium yog ib qho kev nyab xeeb inert gas; Thiab hydrogen yog cov pa roj ntau dua uas tuaj yeem ua rau tawg tau yooj yim thaum nws los rau hauv kev sib cuag nrog Mars. Cov neeg muag khoom hauv txoj kev siv cov roj hydrogen pheej yig rau refueling los txo cov nqi. Thov nyob deb ntawm cov neeg muag khoom ntawm txoj kev kom koj tus kheej muaj kev nyab xeeb.
Kev siv helium
High purity helium roj yog dav siv nyob rau hauv cov tub rog, kev tshawb fawb, petrochemical, tub yees, kev kho mob, semiconductor, pipeline leak detection, superconducting thwmsim, hlau manufacturing, high-precision vuam, optoelectronic khoom ntau lawm, thiab lwm yam.
1. High purity helium roj siv los tiv thaiv cov roj: Siv cov khoom siv tsis zoo ntawm cov roj helium, feem ntau yog siv los ua cov roj tiv thaiv rau vuam hlau xws li magnesium, zirconium, aluminium, thiab titanium.
2. High purity helium roj tuaj yeem siv los ua cov pa roj rau kev thauj cov kua hluav taws xob xws li hydrogen thiab kua oxygen hauv cov khoom siv nqus tsev siab, lub tshuab hluav taws xob nuclear, foob pob hluav taws, thiab lub dav hlau. High purity helium gas kuj tseem siv los ua tus neeg saib xyuas rau atomic reactors
3. High purity helium roj muaj cov ntawv thov tseem ceeb hauv kev siv tshuab superconducting, sib nqus levitation tsheb ciav hlau hauv kev lag luam tsheb thauj mus los, thiab cov khoom siv magnetic resonance imaging hauv kev kho mob. Los ntawm kev siv lub boiling point ntawm cov kua helium ntawm -268.9 degree, nws yuav siv tau rau ultra-tsawg kub txias. Ultra tsis tshua muaj kub cua txias tshuab muaj ntau yam kev siv nyob rau hauv superconducting technology thiab lwm yam teb. Cov khoom siv superconducting yuav tsum tau nthuav tawm cov khoom siv hluav taws xob ntawm qhov kub qis (ib puag ncig 100K), thiab feem ntau, tsuas yog cov kua helium tuaj yeem ua tiav qhov kub tsis tshua muaj siab yooj yim.
4. High purity helium roj feem ntau yog siv los ua cov pa roj carbon dioxide hauv cov pa roj chromatography tsom xam, ua kom zoo dua ntawm nws cov permeability zoo thiab tsis muaj hluav taws xob. High purity helium roj kuj tseem siv rau lub tshuab nqus tsev vacuum, xws li helium mass spectrometer leak detectors.
5. Cov pa roj helium muaj dav siv rau cov pa roj pa tawm: vim nws qhov qis dua li huab cua (1.29kg / m3 rau huab cua thiab 0.1786kg / m3 rau helium), cov khoom siv tshuaj lom neeg, thiab tsis muaj reactivity, helium roj muaj kev nyab xeeb dua li cov pa roj hydrogen (cov pa roj hydrogen tuaj yeem tawg hauv huab cua thiab tuaj yeem ua rau tawg). Helium roj feem ntau yog siv los ua cov pa roj hauv kev lag luam hauv lub dav hlau lossis tshaj tawm cov zais pa.
6. Nyob rau hauv lub tshav pob ntawm marine txoj kev loj hlob, lub filling gas rau gas thermometers yog siv nyob rau hauv ua pa sib tov.