Ultra High Purity Nitrogen Gas Regulator: Precision Control rau cov ntawv thov tseem ceeb

Hauv thaj chaw ntawm kev siv hauv kev lag luam thiab kev tshawb fawb, kev tswj hwm cov pa roj uas muaj kev huv si heev yog qhov tseem ceeb heev. Cov pa roj nitrogen uas muaj purity siab heev (UHP) sawv ntawm pem hauv ntej ntawm cov thev naus laus zis no, xyuas kom meej tias cov pa roj nitrogen raug xa nrog qhov tsawg kawg nkaus ntawm kev ua qias tuaj thiab kev tswj hwm qhov siab kom raug. Cov khoom siv no yog qhov tseem ceeb hauv cov chaw uas txawm tias cov khoom tsis huv kuj tuaj yeem ua rau cov txheej txheem puas tsuaj, xws li kev tsim khoom semiconductor, kev tsim tshuaj, thiab cov cuab yeej siv tshuaj ntsuam xyuas. Tsab xov xwm no tshawb nrhiav txog cov yam ntxwv ntawm UHP nitrogen gas regulators, tshawb nrhiav lawv cov qauv tsim, kev ua haujlwm, kev siv, thiab kev saib xyuas. Los ntawm kev nkag siab txog cov regulators no, cov engineers thiab cov kws kho tshuab tuaj yeem ua kom zoo dua lawv cov kab ke rau kev ntseeg tau thiab kev ua haujlwm zoo.

Cov pa roj nitrogen, vim nws tsis muaj zog thiab tsis ua haujlwm, feem ntau siv ua cov pa roj nqa, cov tshuaj ntxuav, lossis cov khoom siv npog. Txawm li cas los xij, rau cov ntawv thov uas muaj kev ntshiab heev, cov pa roj yuav tsum tswj tau qib kev ntshiab feem ntau tshaj 99.9999% (qib 6N). Txhua tus neeg tswj hwm uas tswj cov pa roj zoo li no yuav tsum tiv thaiv kev nkag mus ntawm cov pa phem xws li oxygen, dej noo, lossis cov khoom me me. Cov neeg tswj hwm roj nitrogen UHP tau tsim los nrog cov khoom siv tshwj xeeb thiab cov yam ntxwv kom ua tiav qhov no, ua rau lawv tsis tseem ceeb hauv cov chaw muaj kev pheej hmoo siab.

Tsim thiab Cheebtsam

Tus qauv tsim ntawm lub tshuab tswj roj nitrogen uas muaj purity siab heev yog ib qho pov thawj rau cov ntsiab cai engineering siab heev. Tsis zoo li cov qauv tswj, UHP qauv siv cov ntaub ntawv uas txo qis kev tawm pa tawm thiab xeb. Cov khoom tseem ceeb suav nrog lub cev, diaphragm, lub rooj zaum, poppet, thiab cov txheej txheem kho, txhua yam ua los ntawm cov hlau tsis xeb zoo, xws li 316L lossis electropolished variants, kom ntseeg tau tias qhov chaw du thiab txo cov khoom lo.

Lub cev ntawm lub regulator feem ntau yog ib daim lossis welded tsim los tshem tawm cov kev xau dej. Electropolishing tshem tawm cov kab me me thiab qhov tsis zoo, ua tiav qhov roughness ntawm qhov chaw feem ntau qis dua 10 Ra (roughness nruab nrab). Qhov no yog qhov tseem ceeb rau kev tiv thaiv cov khoom me me thaum lub sijhawm roj ntws.

Lub diaphragm, ib qho tseem ceeb ntawm kev sib khi, feem ntau yog ua los ntawm Hastelloy lossis lwm yam alloys uas tiv taus kev qaug zog thiab kev tawm tsam tshuaj lom neeg. Nws cais cov roj txheej txheem ntawm lub caij nplooj ntoos hlav mechanism, tiv thaiv kev ua qias tuaj ntawm cov roj nplua nyeem lossis cov pa roj hauv huab cua. Hauv qee qhov kev tsim qauv, kev teeb tsa khi-diaphragm ua rau muaj kev nkag siab thiab lub sijhawm teb.

Lub rooj zaum thiab lub qhov (poppet assembly) tswj cov dej ntws. Cov rooj zaum mos ua los ntawm PCTFE (polychlorotrifluoroethylene) lossis cov polymers zoo sib xws muab cov npuas dej kaw, qhov tseem ceeb rau kev tswj kom huv. Cov rooj zaum tawv, siv cov hlau sib cuag, siv rau kev siv siab dua tab sis xav tau kev ua haujlwm kom raug kom tsis txhob muaj dej xau.

Kev kho qhov siab yog ua los ntawm lub pob tes lossis T-kov uas txuas nrog lub caij nplooj ntoos hlav. Qhov no tso cai rau kev kho qhov siab ntawm qhov tawm, feem ntau yog nyob rau hauv ntau ntawm 0-25 psi txog 0-500 psi, nyob ntawm tus qauv. Cov ntsuas, yog tias suav nrog, yog hom bourdon-tube nrog cov kev sib txuas helium-tested kom khaws cia kev ruaj khov.

Cov kev sib txuas ntawm qhov nkag thiab qhov tawm tau raug teeb tsa raws li CGA (Compressed Gas Association) cov lus qhia, xws li CGA 580 rau nitrogen, kom ntseeg tau tias muaj kev sib haum xeeb thiab kev nyab xeeb. Cov yam ntxwv ntxiv xws li cov lim dej sib xyaw (piv txwv li, 0.003-micron sintered metal) ntes cov khoom me me, thaum cov qhov tso pa tawm tso cai rau kev tshem tawm ntawm lub kaw lus ua ntej siv.

Cov Txheej Txheem Ua Haujlwm

Kev ua haujlwm ntawm a UHP nitrogen roj regulator ua raws li cov ntsiab cai ntawm kev txo thiab tswj lub siab. Cov pa nitrogen siab los ntawm lub tog raj kheej lossis txoj kab xa khoom nkag mus rau hauv qhov chaw nkag. Lub regulator txo qhov siab no kom ruaj khov, tus neeg siv teeb tsa lub siab tawm.

Ntawm lub plawv yog lub zog sib npaug. Lub zog nkag ua haujlwm rau ntawm lub poppet, sim qhib nws, thaum lub diaphragm hnov ​​​​​​lub zog tawm thiab tiv thaiv nws los ntawm lub zog caij nplooj ntoos hlav. Thaum lub zog tawm poob qis (vim yog qhov xav tau), lub diaphragm txav mus, nias lub caij nplooj ntoos hlav thiab qhib lub poppet kom tso cai rau roj ntau dua. Ntawm qhov tod tes, yog tias lub zog nce siab, lub diaphragm thawb rov qab, kaw lub poppet.

Rau cov ntawv thov UHP, cov txheej txheem no yuav tsum tshwm sim yam tsis muaj cov khoom tsis huv. Lub ntim tuag ntawm tus tswj tau txo qis kom txo cov pa roj uas tuaj yeem sib xyaw nrog cov khoom tsis huv. Cov coefficients ntws (Cv) tau ua kom zoo rau cov nqi ntws qis mus rau nruab nrab, feem ntau yog 0.02 txog 0.5, kom tswj tau qhov ntws laminar thiab tiv thaiv kev sib tsoo ua rau cov khoom me me nkag mus.

Qhov siab poob qis, lossis qhov sib txawv ntawm qhov siab tawm nrog kev hloov pauv ntawm cov dej ntws, yog qhov ntsuas kev ua tau zoo tseem ceeb. Cov tswj hwm UHP qhia txog qhov poob qis qis, feem ntau tsawg dua 1% ntawm qhov chaw teeb tsa, ua tsaug rau thaj chaw diaphragm loj thiab cov nqi caij nplooj ntoos hlav meej. Cov nqi xau Helium tau teev tseg ntawm 1 × 10 ^ -9 cc / sec lossis zoo dua, kom ntseeg tau tias tsis muaj huab cua nkag mus.

Cov teebmeem kub tau txo qis los ntawm kev tsim qauv them nyiaj, tswj kev ua haujlwm hla -40 ° C txog 60 ° C. Hauv cov ntawv thov cryogenic, cov qauv tshwj xeeb tswj cov kua nitrogen vaporization, suav nrog cov cua sov sib pauv kom tiv thaiv kev khov.

Cov ntawv thov hauv Kev Lag Luam

Cov roj nitrogen uas muaj purity siab heev pom tau tias siv tau dav hauv ntau yam lag luam. Hauv kev tsim cov khoom siv semiconductor, lawv muab nitrogen rau cov cuab yeej ua wafer, qhov twg cov khoom tsis huv yuav ua rau muaj qhov tsis zoo hauv microchips. Piv txwv li, hauv kev thaij duab photolithography, UHP nitrogen ntxuav cov kab ke optical kom tiv thaiv cov pa phem uas ua rau muaj dej noo.

Hauv cov tshuaj, cov tshuaj tswj no tswj cov nitrogen uas nyob hauv cov reactors thiab cov tank cia khoom, khaws cov tshuaj kom zoo los ntawm kev hloov cov pa oxygen thiab tiv thaiv kev oxidation. Cov chaw soj ntsuam siv lawv rau cov roj chromatography thiab mass spectrometry, qhov twg cov roj carrier purity cuam tshuam ncaj qha rau qhov txwv kev kuaj pom thiab qhov tseeb.

Cov ntawv thov aerospace suav nrog UHP nitrogen rau kev ua kom cov thoob roj tsis ua haujlwm thiab sim cov tshuab hydraulic. Hauv cov khoom noj thiab dej haus, cov khoom ntim khoom hloov kho huab cua siv cov nitrogen tswj kom ntev lub sijhawm khaws cia yam tsis muaj cov tshuaj tiv thaiv.

Cov teb tshiab xws li kev tsim khoom ntxiv (3D luam ntawv) siv cov regulators no los tswj cov huab cua inert hauv cov txaj hmoov hlau, tiv thaiv kev oxidation thaum lub sijhawm laser sintering. Hauv kev tshawb fawb, cov khoom siv accelerators thiab fusion experiments xav tau UHP nitrogen rau kev txias thiab rwb thaiv tsev.

Cov Txiaj Ntsig thiab Cov Nres Npaum

Cov txiaj ntsig tseem ceeb ntawm Cov pa roj nitrogen UHP tswj yog kev tiv thaiv kev ua qias tuaj, uas txhais tau tias muaj txiaj ntsig zoo dua thiab txo lub sijhawm tsis ua haujlwm hauv cov txheej txheem. Lawv txoj kev tsim kho ruaj khov ua kom muaj lub neej ntev, nrog rau lub sijhawm nruab nrab ntawm kev ua tsis tiav feem ntau tshaj 10 xyoo.

Kev tswj xyuas qhov tseeb ua rau cov txheej txheem ruaj khov, qhov tseem ceeb rau cov txiaj ntsig rov ua dua hauv R&D. Cov yam ntxwv kev nyab xeeb, xws li lub qhov cua tso pa tawm thiab cov disc tawg, tiv thaiv kev kub siab dhau. Kev ua raws li cov qauv xws li SEMI (Semiconductor Equipment and Materials International) thiab ISO ua kom muaj kev sib koom tes thoob ntiaj teb.

Kev lag luam, txawm hais tias tus nqi pib siab dua li cov qauv tswj hwm (xws li $ 500 txog $ 5000), kev txo qis ntawm cov khoom pov tseg thiab kev ua haujlwm dua tshiab ua rau kev nqis peev tsim nyog. Kev siv hluav taws xob zoo dua los ntawm kev txo cov roj pov tseg los ntawm kev kaw lub tshuab kom nruj.

Kev saib xyuas thiab kev saib xyuas kev nyab xeeb

Kev saib xyuas kom zoo yog qhov tseem ceeb rau kev ua haujlwm kom ruaj khov. Kev tshuaj xyuas tsis tu ncua rau qhov xau siv helium mass spectrometry yog qhov pom zoo. Cov txheej txheem ntxuav suav nrog kev da dej ultrasonic nrog isopropyl cawv, ua raws li nitrogen purging thiab ci kom tshem tawm cov dej noo.

Cov kev coj ua kev nyab xeeb suav nrog kev siv cov khoom tswj hwm uas tsuas yog muaj cov pa roj thiab cov siab sib xws. Cov neeg ua haujlwm yuav tsum hnav PPE (cov khoom siv tiv thaiv tus kheej) thiab xyuas kom muaj cua nkag tau zoo. Kev siv lub tog raj kheej yuav tsum ua raws li DOT (Lub Tsev Haujlwm Saib Xyuas Kev Thauj Mus Los) cov lus qhia kom tiv thaiv kev raug mob.

Yog tias muaj teeb meem ua haujlwm tsis zoo, cov tsos mob xws li lub zog nce qeeb (lub zog tawm ntawm lub qhov hluav taws xob nce qeeb) qhia tias lub rooj zaum puas lawm, yuav tsum tau hloov. Kev kho txhua 6-12 lub hlis tseem ua kom raug.

xaus

Cov khoom siv tswj roj nitrogen uas muaj purity siab heev sawv cev rau qhov zoo tshaj plaws ntawm kev siv tshuab tswj roj, kev sib xyaw ua ke ntawm cov ntaub ntawv tshawb fawb, cov kua dej, thiab kev tsim kho kom raug. Lawv lub luag haujlwm hauv kev tiv thaiv kev huv ntawm cov txheej txheem tsis tuaj yeem hais ntau dhau, ua rau muaj kev nce qib hauv kev siv tshuab thiab kev tshawb fawb. Thaum cov lag luam thawb kom muaj kev ua haujlwm zoo dua, cov khoom siv tswj no yuav hloov pauv, suav nrog cov sensors ntse rau kev saib xyuas lub sijhawm tiag tiag thiab kev koom ua ke IoT rau kev saib xyuas kwv yees. Kev nkag siab thiab kev siv UHP nitrogen regulators ua tau zoo ua kom muaj kev ua haujlwm zoo tshaj plaws hauv cov ntawv thov uas xav tau ntau.

Rau ntxiv txog Cov pa roj nitrogen uas muaj purity siab heev: kev tswj xyuas qhov tseeb rau cov ntawv thov tseem ceeb, koj tuaj yeem mus ntsib Jewellok ntawm https://www.specialtygasregulator.com/product-category/ultra-high-purity-gas-regulators/ yog xav paub ntau info.