Hauv ntau lub sijhawm tom qab xyoo 80 thiab tom qab 90s thaum yau, hydrogen balloons yog qhov tseem ceeb.Tam sim no, cov duab ntawm hydrogen balloons tsis txwv rau cov qauv tas luav.Kuj tseem muaj ntau lub net liab pob tshab balloons dai kom zoo nkauj nrog lub teeb, uas yog nyiam los ntawm ntau cov tub ntxhais hluas.
Txawm li cas los xij, hydrogen balloons yog qhov txaus ntshai heev.Thaum hydrogen nyob hauv huab cua thiab rub nrog lwm yam khoom los tsim hluav taws xob zoo li qub, lossis ntsib cov nplaim taws, nws yooj yim tawg.Hauv xyoo 2017, nws tau tshaj tawm tias plaub tus tub ntxhais hluas hauv Nanjing tau yuav rau 6 lub npas liab online, tab sis ib tus ntawm lawv tau tsoo lub pob taws thaum haus luam yeeb.Raws li qhov tshwm sim, rau lub balloons tawg ib zaug, ua rau ntau tus neeg raug hlawv hnyav.Ob leeg kuj muaj hlwv ntawm ob txhais tes, thiab lub ntsej muag kub hnyiab tau mus txog qib II.
Rau kev nyab xeeb, lwm hom "helium balloon" tau tshwm sim hauv khw.Nws tsis yooj yim rau tawg thiab hlawv, thiab muaj kev nyab xeeb dua li hydrogen balloon.
Vim li cas thiaj siv helium balloons
Cia peb nkag siab ua ntej vim li cas helium tuaj yeem ua kom lub zais pa ya.
Cov roj filling ntau hauv balloons yog hydrogen thiab helium.Vim tias qhov ceev ntawm ob lub gases qis dua li huab cua, qhov ceev ntawm hydrogen yog 0.09kg / m3, qhov ceev ntawm helium yog 0.18kg / m3, thiab qhov ceev ntawm huab cua yog 1.29kg / m3.Yog li ntawd, thaum peb sib ntsib, cov huab cua denser yuav maj mam nqa lawv, thiab lub zais pa yuav ntab nce mus tas li nyob ntawm buoyancy.
Qhov tseeb, muaj ntau cov pa roj uas muaj qhov qis dua li huab cua, xws li ammonia nrog qhov ceev ntawm 0.77kg / m3.Txawm li cas los xij, vim tias tsis hnov tsw ntawm ammonia yog qhov khaus heev, nws tuaj yeem yooj yim adsorbed ntawm daim tawv nqaij mucosa thiab conjunctiva, ua rau khaus thiab o.Vim muaj kev nyab xeeb, ammonia tsis tuaj yeem ntim rau hauv lub zais pa.
Helium tsis tsuas yog qhov ntom ntom, tab sis kuj nyuaj rau hlawv, yog li nws tau dhau los ua qhov zoo tshaj plaws hloov rau hydrogen.
Helium tuaj yeem siv tsis tau xwb, tab sis kuj dav.
Helium yog dav siv
Yog tias koj xav tias helium tsuas yog siv los sau cov zais pa, koj tsis yog lawm.Qhov tseeb, helium muaj ntau dua li cov teebmeem no rau peb.Txawm li cas los xij, helium tsis muaj txiaj ntsig.Nws tseem ceeb heev hauv kev lag luam tub rog, kev tshawb fawb tshawb fawb, kev lag luam thiab ntau lwm yam.
Thaum smelting thiab vuam hlau, helium tuaj yeem cais cov pa oxygen, yog li nws tuaj yeem siv los tsim kev tiv thaiv ib puag ncig kom tsis txhob muaj tshuaj lom neeg ntawm cov khoom thiab cov pa oxygen.
Tsis tas li ntawd, helium muaj qhov kub siab heev thiab tuaj yeem siv los ua cov tub yees.Liquid helium yog dav siv los ua qhov nruab nrab cua txias thiab tu tus neeg sawv cev rau atomic reactors.Nyob rau tib lub sijhawm, nws kuj tseem tuaj yeem siv los ua lub zog thiab txhawb nqa ntawm cov roj foob pob hluav taws ua kua.Qhov nruab nrab, NASA siv ntau pua lab cubic feet ntawm helium txhua xyoo hauv kev tshawb fawb tshawb fawb.
Helium kuj tseem siv rau ntau qhov chaw ntawm peb lub neej.Piv txwv li, airships kuj yuav tau ntim nrog helium.Txawm hais tias qhov ceev ntawm helium yog me ntsis siab dua li ntawm hydrogen, lub peev xwm nqa ntawm helium puv balloons thiab airships yog 93% ntawm hydrogen balloons thiab airships nrog tib lub ntim, thiab tsis muaj ntau qhov sib txawv.
Ntxiv mus, helium puv airships thiab balloons tsis tuaj yeem ntes hluav taws lossis tawg, thiab muaj kev nyab xeeb dua li hydrogen.Nyob rau hauv 1915, lub teb chaws Yelemees thawj zaug siv helium ua cov pa roj los sau cov dav hlau.Yog tias tsis muaj helium, lub suab nrov balloons thiab spaceships siv los ntsuas huab cua yuav tsis tuaj yeem nce mus rau saum huab cua rau kev ua haujlwm.
Tsis tas li ntawd, helium kuj tseem siv tau rau hauv cov ris tsho dhia dej, lub teeb neon, cov ntsuas kub siab thiab lwm yam khoom, nrog rau cov hnab ntim khoom feem ntau ntawm cov chips muag hauv khw, uas tseem muaj cov helium me me.
Post lub sij hawm: Nov-09-2020