Cov kev siv tseem ceeb ntawm Helium hauv kev kho mob

Helium yog cov pa roj tsawg nrog cov tshuaj formula Nws, tsis muaj xim, tsis muaj ntxhiab, tsis muaj roj, tsis muaj nplaim taws, tsis muaj tshuaj lom, nrog rau qhov kub thiab txias ntawm -272.8 degrees Celsius thiab lub siab tseem ceeb ntawm 229 kPa. Hauv cov tshuaj, helium tuaj yeem siv rau hauv kev tsim cov khoom siv hluav taws xob kho mob siab, helium-neon lasers, argon helium riam, thiab lwm yam khoom siv kho mob, nrog rau kev kho mob hawb pob, mob ntsws ntsws thiab lwm yam kab mob. Tsis tas li ntawd, helium tuaj yeem siv rau kev sib nqus resonance imaging, cryogenic freezing, thiab gas-tightness testing.

Cov kev siv tseem ceeb ntawm helium hauv kev kho mob suav nrog:

1, MRI imaging: Helium muaj qhov melting tsawg heev thiab boiling point, thiab yog tib yam khoom uas tsis solidification ntawm atmospheric siab thiab 0 K. Liquefied helium tuaj yeem ncav cuag qhov kub tsis tshua muaj zero (txog -273.15 ° C) tom qab rov ua dua. txias thiab pressurization. Qhov no ultra-low kub tshuab ua rau nws siv dav hauv kev kuaj mob. Sib nqus resonance imaging cia siab rau cov kua helium encapsulating superconducting hlau nplaum los tsim magnetic teb uas yuav pab tau noob neej. Qee qhov kev tsim kho tshiab tsis ntev los no tuaj yeem txo kev siv helium, tab sis helium tseem yog qhov tseem ceeb rau kev ua haujlwm ntawm MRI cov cuab yeej.

2.Helium-neon laser: Helium-neon laser yog lub teeb liab monochromatic nrog lub teeb ci siab, kev coj ua zoo thiab muaj zog heev. Feem ntau hais lus, qis zog helium-neon laser tsis muaj kev puas tsuaj rau tib neeg lub cev, yog li nws tau siv dav hauv kev kho mob. Cov khoom ua haujlwm ntawm helium-neon laser yog helium thiab neon. Hauv kev kho mob, tsis tshua muaj hluav taws xob helium-neon laser yog siv rau irradiate o cheeb tsam, bald chaw, ulcerated nto, qhov txhab thiab lwm yam. Nws muaj anti-inflammatory, tiv thaiv khaus, plaub hau kev loj hlob, txhawb kev loj hlob ntawm granulation thiab epithelium, thiab accelerates kho ntawm qhov txhab thiab rwj. Txawm hais tias nyob rau hauv kev kho mob zoo nkauj, helium-neon laser tau ua rau "kev zoo nkauj ntsuas". Helium-neon laser ua haujlwm yog helium thiab neon, uas helium yog cov pa roj, neon yog cov roj ua haujlwm tseem ceeb.

3.Argon-helium riam: argon helium riam yog feem ntau siv hauv cov cuab yeej kho mob, yog argon helium txias cais tshuab siv hauv kev kho mob ntawm crystallization. Tam sim no, ntau lub tsev kho mob hauv tsev muaj cov qauv tshiab ntawm argon helium riam cryotherapy chaw. Lub hauv paus ntsiab lus yog Joule-Thomson txoj cai, piv txwv li roj throttling nyhuv. Thaum cov roj argon tso tawm sai sai hauv qhov kawg ntawm rab koob, cov ntaub so ntswg tuaj yeem khov rau -120 ℃ ~ -165 ℃ li ntawm kaum vib nas this. Thaum helium tso tawm sai sai ntawm qhov kawg ntawm rab koob, nws ua kom rov ua kom sov sai sai, ua rau lub pob dej khov thaw sai sai thiab tshem tawm cov qog.

4, Gas Tightness Detection: Helium leak detection yog hais txog cov txheej txheem ntawm kev siv helium raws li cov pa roj tracer los ntes cov xau hauv ntau lub pob lossis lub kaw lus kaw los ntawm kev ntsuas nws cov concentration thaum nws khiav tawm vim qhov xau. Thaum lub tshuab no tsis yog siv rau hauv kev lag luam tshuaj thiab kho mob nkaus xwb, nws kuj tseem siv tau zoo hauv lwm qhov chaw. Thaum nws los txog rau kev kuaj pom helium hauv kev lag luam tshuaj, cov tuam txhab uas tuaj yeem muab cov txiaj ntsig zoo thiab muaj txiaj ntsig zoo tuaj yeem txhim kho lawv cov kev xa tshuaj zoo. Nws txuag nyiaj thiab sijhawm thiab txhim kho kev nyab xeeb; nyob rau hauv kev lag luam khoom siv kho mob, lub ntsiab tseem ceeb yog nyob rau hauv pob kev ntsuam xyuas kev ncaj ncees. Helium leak test txo qhov kev pheej hmoo ntawm cov khoom tsis ua haujlwm rau cov neeg mob thiab cov neeg ua haujlwm kho mob, nrog rau kev pheej hmoo ntawm cov khoom lag luam lav rau cov tuam txhab.

6, Kev kho mob hawb pob: Txij li xyoo 1990, tau muaj kev tshawb fawb txog helium-oxygen sib tov rau kev kho mob hawb pob thiab kab mob ua pa. Tom qab ntawd, ntau cov kev tshawb fawb tau lees paub tias helium-oxygen sib tov muaj txiaj ntsig zoo hauv kev mob hawb pob, COPD, thiab kab mob hauv lub ntsws. Kev kub siab helium-oxygen sib tov tuaj yeem tshem tawm qhov mob ntawm cov hlab ntsha. Kev nqus pa ntawm helium-oxygen sib tov ntawm ib qho kev siab tuaj yeem ua rau lub cev yaug cov mucous ntawm lub trachea thiab txhawb kev tshem tawm ntawm cov phlegm sib sib zog nqus, ua tiav cov nyhuv ntawm kev tiv thaiv kab mob thiab expectoration.