Lub Oxygen Gas Pressure Regulator ua haujlwm li cas?

 

 

Oxygen gas siab regulators yog cov khoom tseem ceeb hauv ntau qhov chaw, suav nrog kev kho mob, kev lag luam vuam, thiab kev tshawb fawb tshawb fawb. Cov cuab yeej no tswj kev tso tawm cov pa tawm ntawm lub tog raj kheej siab-feem ntau yog li ntawm 2,000 txog 3,000 phaus ib square inch (psi) - nqes kom muaj kev nyab xeeb, siv tau rau cov khoom siv lossis kev thov ncaj qha. Oxygen, raws li cov pa roj uas muaj zog heev uas txhawb kev sib tsoo, xav tau kev tuav tshwj xeeb los tiv thaiv hluav taws, tawg, lossis kis kab mob. Tsis zoo li inert gases xws li helium, oxygen regulators yuav tsum muab cov ntaub ntawv thiab cov qauv tsim uas txo qhov kev pheej hmoo ntawm hluav taws kub, ua rau lawv cov hauj lwm zoo ib yam li lwm yam roj regulators, tab sis tsis muaj kev ruaj ntseg tsom xam.

 

Lub hom phiaj tseem ceeb ntawm kev tswj cov pa oxygen yog kom tswj tau lub qhov hluav taws xob zoo ib yam txawm tias muaj kev hloov pauv hauv qhov nkag siab lossis qis qis. Qhov no ua kom ntseeg tau qhov kev ua tau zoo hauv cov xwm txheej tseem ceeb, xws li xa cov pa oxygen txaus rau cov neeg mob uas muaj teeb meem ua pa los yog muab cov nplaim taws ruaj khov hauv oxy-acetylene vuam. Yog tias tsis muaj kev cai lij choj, kev tso tawm ncaj qha los ntawm lub tog raj kheej tuaj yeem ua rau muaj kev phom sij ntau dhau, cov khoom siv tsis ua haujlwm, lossis cov pa oxygen enrichment ua rau muaj kev phom sij rau hluav taws hauv qhov chaw kaw.

 

Keeb kwm, lub siab tswj hwm tau hloov zuj zus los ntawm qhov yooj yim li qub nyob rau hauv lub xyoo pua 19th mus rau cov cuab yeej siv tau zoo los ntawm nruab nrab xyoo pua 20th, nrog cov qauv tshwj xeeb ntawm cov pa oxygen tau txais txiaj ntsig zoo hauv kev kho mob thiab kev lag luam tom qab Tsov Rog Ntiaj Teb Zaum II. Niaj hnub no, lawv ua raws li cov qauv zoo li cov los ntawm Compressed Gas Association (CGA) thiab Occupational Safety and Health Administration (OSHA), hais txog kev sib raug zoo thiab kev huv. Piv txwv li, cov neeg tswj cov pa oxygen feem ntau muaj cov xim ntsuab rau kev txheeb xyuas yooj yim thiab siv CGA 540 kev sib txuas los tiv thaiv kev sib txuas nrog cov pa roj tsis sib haum.

 

Tsab ntawv xov xwm no tshawb txog qhov tsis txaus ntseeg ntawm cov pa roj carbon monoxide regulators, npog lawv cov hauv paus ntsiab lus, cov khoom, cov txheej txheem kev ua haujlwm, hom, kev siv, kev tiv thaiv kev nyab xeeb, thiab kev saib xyuas. Los ntawm qhov kev ntsuam xyuas no, cov neeg nyeem yuav tau txais kev nkag siab zoo ntawm cov cuab yeej tseem ceeb no, qhia txog lawv txoj kev tsim vaj tsev zoo nkauj thiab kev ntsuas kev nyab xeeb nruj uas yuav tsum tau siv rau kev tuav cov pa oxygen.

 

Lub hauv paus ntsiab lus ntawm Kev Tswj Siab

Ntawm nws cov ntsiab lus, lub tshuab pa oxygen siab regulator ua haujlwm ntawm lub hauv paus ntsiab lus ntawm kev sib npaug ntawm kev quab yuam kom ua tiav tswj kev txo qis. High-pressure oxygen nkag mus rau lub regulator los ntawm lub tog raj kheej, qhov twg nws yog throttled los ntawm ib tug txawv txav orifice mus rau lub qhov hluav taws xob qis. Lub cuab yeej hloov kho kom tswj tau qhov tso zis no, them nyiaj rau cov kev hloov pauv hauv cov khoom siv siab lossis kev xav tau txaus.

 

Lub hauv paus txheej txheem muaj xws li ib tug dynamic equilibrium ntawm mechanical rog (los ntawm lub caij nplooj ntoos hlav) thiab pneumatic rog (los ntawm cov roj siab). Hauv kev teeb tsa ib txwm, lub diaphragm hnov ​​​​lub qhov hluav taws xob siab thiab cuam tshuam nrog lub caij nplooj ntoos hlav-loaded valve. Thaum lub caij nplooj ntoos hlav quab yuam tshaj lub zog siab ntawm lub diaphragm, lub valve qhib kom tso cai ntau dua; conversely, yog tias cov roj siab tsim, nws thawb rov qab, kaw lub valve ib feem kom rov qab sib npaug.

 

Rau cov pa oxygen, cov ntsiab cai ntxiv hais txog nws qhov oxidizing xwm. Regulators yuav tsum yog "oxygen huv", tsis muaj hydrocarbons los yog cov khoom uas tuaj yeem ignite nyob rau hauv siab. Qhov no yog tswj hwm los ntawm cov qauv zoo li ASTM G93, uas qhia meej cov txheej txheem ntxuav kom tshem tawm cov khoom seem uas yuav ua rau adiabatic compression ignition - qhov kub thiab txias ntawm cov pa compression ua rau combustion.

 

Cov yam ntxwv tseem ceeb ntawm kev ua tau zoo suav nrog "droop," qhov txo qis hauv qhov hluav taws xob qis thaum ntws nce, vim lub caij nplooj ntoos hlav nonlinearities thiab kev sib txhuam. Cov kws tswj xyuas cov pa oxygen zoo txo ​​qis kom txo qis kev xa khoom zoo ib yam, tseem ceeb hauv kev siv kho mob qhov twg cov nqi ntws yuav txawv ntawm 0.5 txog 15 litres ib feeb (LPM). Qhov "supply pressure effect" ua rau me qhov hluav taws xob hloov pauv raws li lub tog raj kheej siab decays; Cov qauv ib theem qhia txog 0.5-1 psi nce ib 100 psi inlet poob, thaum dual-theem txo qhov no mus rau qib tsis txaus.

 

Cov teebmeem kub kuj tseem suav hais tias: oxygen ntom ntom hloov nrog qhov kub thiab txias, muaj feem cuam tshuam rau qhov tseeb txaus. Regulators yuav suav nrog cov yam ntxwv them nyiaj lossis raug ntsuas rau qee qhov tshwj xeeb, xws li -40 ° F txog 140 ° F. Nyob rau hauv cov xwm txheej siab, Joule-Thomson cua txias tuaj yeem tshwm sim, qhov uas nthuav dav cov pa cua txias, ua rau muaj kev pheej hmoo ntawm cov dej khov yog tias cov dej noo tam sim no - yog li qhov tseem ceeb ntawm cov pa qhuav, huv si.

 

Zuag qhia tag nrho, cov hauv paus ntsiab lus no ua kom cov pa oxygen xa mus kom nyab xeeb thiab ua tau zoo, ntsuas kev ntseeg siab ntawm cov neeg kho tshuab nrog tshuaj lom neeg.

 

 

Cheebtsam ntawm ib Oxygen Gas Pressure Regulator

Lub tshuab pa oxygen siab regulator muaj ntau yam kev sib txuas sib txuas tsim los rau kev ua haujlwm ntev, kev ua kom zoo, thiab kev nyab xeeb. Lub cev tseem ceeb, feem ntau machined los ntawm tooj dag los yog stainless hlau, tsev nyob rau hauv lub mechanisms. Brass yog haum rau nws cov machinability thiab corrosion kuj nyob rau hauv cov kev pab cuam oxygen, thaum stainless hlau yog siv nyob rau hauv high-purity los yog corrosive ib puag ncig. Lub cev feem ntau yog barstock rau qhov ntim sab hauv qis thiab ua tiav kom tiav kom txo tau cov kab mob sib kis.

 

Inlet thiab qhov hluav taws xob ports txuas mus rau lub tog raj kheej thiab downstream system. Lub inlet siv CGA 540 haum rau lub tog raj kheej oxygen mus txog 3,000 psi, kom ntseeg tau cov roj sib xyaw ua ke los tiv thaiv kev sib tsoo. Cov qhov hluav taws xob sib txawv: threaded rau hoses hauv vuam lossis pin-indexed rau kev kho mob yokes.

 

Cov txheej txheem tswj feem ntau yog poppet valve nrog lub rooj zaum ua los ntawm cov ntaub ntawv sib xws xws li PCTFE (Kel-F) lossis Vespel, uas tiv taus cov pa oxygen reactivity thiab muab kev sib khi nruj. Lub valve kho lub qhov ncauj los tswj kev ntws.

 

Lub ntsiab lus pom yog lub diaphragm, feem ntau stainless hlau kom tsis txhob muaj kev cuam tshuam los yog permeation teeb meem tshwm sim nrog elastomers hauv cov pa oxygen. Nws cais cov chav siab siab thiab qis qis, teb rau kev hloov siab.

 

Lub loading mechanism muaj xws li lub caij nplooj ntoos hlav thiab kho qhov rooj. Lub caij nplooj ntoos hlav, feem ntau stainless hlau, siv quab yuam rau lub diaphragm; tig lub pob qhov rooj compresses nws los teeb lub qhov hluav taws xob siab, feem ntau ntawm 0-50 psi hauv kev kho mob regulators.

 

Dual gauges saib xyuas qhov siab: qhov ntsuas siab siab (0-4,000 psi) qhia lub tog raj kheej cov ntsiab lus, thaum lub ntsuas qhov ntsuas qis (0-100 psi lossis ntws hauv LPM) qhia txog kev xa khoom. Flowmeters, zoo li Thorpe tubes, tuaj yeem sib xyaw ua ke rau kev tswj xyuas meej.

 

Cov yam ntxwv ntawm kev nyab xeeb muaj xws li nyem li qub uas tso siab dhau (teeb tsa ntawm 1.5 npaug ntawm qhov hluav taws xob) thiab cov ntxaij lim dej kom ntxiab cov khoom. Rau cov pa oxygen, tag nrho cov khoom xyaw yog cov pa oxygen, lubricated nrog cov khoom tsis zoo xws li Krytox yog tias xav tau. Cov ntsaws ruaj ruaj yog cov hlau-rau-hlau lossis fluoropolymer los tiv thaiv kom tsis txhob tawg thiab tawg.

 

Cov khoom siv no ua haujlwm sib koom ua ke, nrog cov ntaub ntawv xaiv los tiv thaiv cov pa oxygen xav tau thaum ua kom lub neej ntev.

 

 

Mechanism ua haujlwm: Ib kauj ruam los ntawm kauj ruam

Kev khiav hauj lwm ntawm cov pa oxygen siab regulator ua raws li ib ntus, leveraging quab yuam sib npaug rau kev tswj.

 

Ua ntej, kev teeb tsa: Ua kom ruaj ntseg rau lub tog raj kheej siv CGA 540 kev sib txuas. Xyuas kom lub cev huv si; Tsis txhob siv roj lossis roj, raws li cim rau ntawm qhov ntsuas ("SIV TSIS TAU"). Kaw downstream li qub thiab rov qab tawm qhov hloov kho kom tsis muaj zog.

 

Kauj Ruam 1: Pib Siab Siab. Maj mam qhib lub tog raj kheej valve. Cov pa oxygen siab siab (piv txwv li, 2,200 psi) nkag mus rau hauv lub qhov nkag tab sis raug kaw los ntawm lub valve kaw, vim tias lub caij nplooj ntoos hlav tsis muaj zog qhib.

 

Kauj Ruam 2: Teem Siab. Tig lub pob qhov rooj clockwise, compressing lub caij nplooj ntoos hlav. Qhov no quab yuam displaces lub diaphragm downward, unseating lub poppet valve. Cov pa oxygen ntws mus rau hauv lub qhov hluav taws xob chamber, lub tsev siab.

 

Kauj Ruam 3: Equilibrium Achievement. Qhov hluav taws xob siab ua rau sab saud ntawm lub diaphragm, tawm tsam lub caij nplooj ntoos hlav. Thaum lub zog sib npaug (lub caij nplooj ntoos hlav quab yuam = siab × diaphragm cheeb tsam), lub valve stabilizes, tswj lub teeb siab (xws li, 50 psi rau vuam).

 

Kauj Ruam 4: Teb rau cov kev hloov pauv. Yog tias qhov kev thov nce ntxiv (piv txwv li, qhib lub teeb), qhov hluav taws xob qhov hluav taws xob poob qis, txo lub zog diaphragm. Lub caij nplooj ntoos hlav qhib lub valve dav dua kom rov qab ntws. Yog tias siab tshaj qhov taw tes, lub diaphragm kaw lub valve. Hauv cov qauv dual-theem, thawj theem txo qis rau ~ 300 psi, qhov thib ob zoo-tunes, txo qhov kev hloov pauv.

 

Rau cov pa oxygen, zam kev ceev ceev kom tiv thaiv adiabatic cua sov. Yog tias nruab, siv lub tshuab lim dej kom ntws tawm cua ua ntej ua haujlwm puv, tiv thaiv cov pa oxygen-cua sib tov uas tuaj yeem ignite.

 

Kaw: Kaw lub tog raj kheej valve, tso pa tawm ntawm qhov seem kom zoo, thiab so lub pob qhov rooj kom tiv thaiv kev qaug zog. Cov txheej txheem no ua kom muaj kev nyab xeeb, ruaj khov xa oxygen.

 

 

Hom ntawm Oxygen Gas Pressure Regulators

Oxygen regulators sib txawv los ntawm kev tsim thiab kev siv.

 

Ib-theem Regulators: Txo qhov siab hauv ib kauj ruam; economical rau ruaj khov inlet scenarios zoo li lub sij hawm luv luv vuam. Yooj yim rau muab cov nyhuv.

 

Dual-Stage Regulators: Ob-kauj ruam txo rau qhov tseeb; zoo tagnrho rau kev kuaj los yog kev kho mob siv nrog depleting cylinders.

 

Nruam Flow Regulators: Xa cov pa tsis tu ncua ntawm LPM; feem ntau hauv kev kho mob hauv tsev.

 

Pulse-Dose lossis Conserving Regulators: Ua pa thiab xa cov tawg, txuas lub tog raj kheej mus txog 5x; rau kev siv kho mob portable.

 

High-Purity Regulators: Stainless Cheebtsam rau analytical oxygen; txo qhov paug paug.

 

Direct-Operated vs. Pilot-Operated: Ncaj nraim rau kev tswj tau yooj yim; pilot rau siab flows nyob rau hauv industrial chaw.

 

Cov hom tshwj xeeb muaj xws li yoke-style rau kev kho mob tso tsheb hlau luam thiab siab-siab rau aviation.

 

 

Cov ntawv thov rau Oxygen

Hauv cov tshuaj, cov neeg tswj xyuas pab kom muaj kev kho mob oxygen, tshuaj loog, thiab lub tshuab ua pa, kom ntseeg tau tias ntws los ntawm 1-15 LPM. Hauv vuam, lawv tswj oxy-fuel torches rau txiav hlau. Industrially, siv nyob rau hauv steel ntau lawm thiab tshuaj txheej txheem. Aviation ntiav lawv rau kev ua pa siab.

 

 

Kev Nyab Xeeb thiab Kev Txij Nkawm

Kev nyab xeeb yog qhov tseem ceeb: tsuas yog siv cov pa oxygen-compatible regulators; tshuaj xyuas kev puas tsuaj ua ntej siv. Tsis txhob siv roj los tiv thaiv hluav taws; ua cov kev ntsuam xyuas xau nrog dej soapy. Kev saib xyuas suav nrog kev sim ua haujlwm txhua hli, ntsuas qhov siab, thiab hloov pauv txhua 5 xyoos. Tshem tawm ntawm kev kaw; khaws cia hauv thaj chaw huv. Ua raws li OSHA cov lus qhia rau kev tshuaj xyuas.

 

xaus

Oxygen gas siab regulators piv txwv precision engineering tailored rau ib reactive gas, kom muaj kev ruaj ntseg siab tswj nyob rau hauv ntau yam kev siv. Lawv cov txheej txheem sib npaug thiab cov yam ntxwv kev nyab xeeb underscore lawv indispensability nyob rau hauv niaj hnub technology.

Yog xav paub ntxiv txog yuav ua li cas cov pa oxygen siab regulator ua haujlwm, koj tuaj yeem them mus ntsib Jewellok ntawm https://www.jewellok.com/ yog xav paub ntau info.