Dab tsi Valves tuaj yeem siv rau Throttling?

Saib cov duab loj dua
Pipeline systems tsis ua tiav yam tsis muaj kev lag luam li qub.Lawv tuaj nyob rau hauv ntau qhov ntau thiab tsawg, vim hais tias cov no yuav tsum tau ua raws li cov kev xav tau sib txawv.
Kev lag luam li qub tuaj yeem raug cais raws li lawv txoj haujlwm.Muaj li qub nres lossis pib qhov ntws ntawm kev tshaj tawm;muaj cov uas tswj qhov twg cov kua ntws.Muaj lwm qhov uas tuaj yeem sib txawv ntawm cov xov xwm ntws.
Xaiv qhov zoo ntawm valve yog qhov tseem ceeb rau kev lag luam kev lag luam.Ib hom tsis ncaj ncees lawm yuav txhais tau tias kaw lub kaw lus lossis lub kaw lus hauv kev ua haujlwm.

Dab tsi yog Throttling Valves

Lub throttling valve tuaj yeem qhib, kaw thiab tswj cov xov xwm ntws.Throttling li qub yog cov regulator li qub.Qee tus neeg siv lo lus "tswj li qub" txhais tau hais tias lub valve throttling.Qhov tseeb yog, muaj ib txoj kab sib txawv txhais tau tias ob.Throttling li qub muaj cov discs uas tsis tsuas nres lossis pib tawm xov xwm txaus.Cov discs no tuaj yeem tswj hwm tus nqi, siab thiab qhov kub thiab txias ntawm cov xov xwm dhau los ntawm txhua txoj haujlwm tau teev tseg.

Throttling li qub yuav muaj siab dua ntawm ib kawg thiab qis dua ntawm qhov kawg.Qhov no kaw lub valve, nyob ntawm seb qhov ntsuas qhov siab.Ib qho piv txwv zoo li no yog lub diaphragm valve.

Ntawm qhov tod tes, tswj li qub yuav tswj cov dej ntws ntawm kev tshaj tawm nrog kev siv tus actuator.Nws tsis tuaj yeem ua haujlwm yam tsis muaj ib qho.

Lub siab thiab qhov kub thiab txias cuam tshuam qhov ntws ntawm cov xov xwm kom tswj cov li qub tswj cov no.Tsis tas li ntawd, cov li qub no tuaj yeem hloov pauv cov dej ntws los yog lub siab kom haum rau qhov xav tau ntawm cov kav dej.

Hauv qhov kev nkag siab no, tswj li qub yog tshwj xeeb throttling li qub.Uas tau hais tias, tswj li qub tuaj yeem throttle tab sis tsis yog txhua qhov throttling li qub yog tswj li qub.

Qhov piv txwv zoo tshaj plaws yog lub tshuab hydraulic uas muaj lub zog sab nraud yuav tsum tso lub tshuab nqus tsev kom cov pa tuaj yeem nkag mus rau lub valve.

Throttling Mechanism

Thaum lub raj xa dej siv throttling valve, media flow rate hloov.Thaum qee qhov qhib lossis kaw lub valve, muaj kev txwv ntawm cov dej ntws.Yog li, tswj kev tshaj tawm.

Qhov no, nyob rau hauv lem, compacts cov xov xwm nyob rau hauv uas ib feem qhib valve.Molecules ntawm cov xov xwm pib rub mus rau ib leeg.Qhov no tsim kev sib txhuam.Qhov kev sib txhuam no tseem ua rau cov xov xwm ntws tawm qeeb thaum nws dhau los ntawm lub valve.

Yuav kom ua piv txwv zoo dua, xav txog lub raj xa dej raws li lub vaj hose.Tig rau, cov dej mus ncaj nraim tawm lub hose yam tsis muaj kev txwv.Cov dej ntws tsis muaj zog.Tam sim no, xav txog lub valve raws li tus ntiv tes xoo ib feem npog lub qhov ncauj ntawm lub hose.

Cov dej uas tawm los hloov qhov nrawm thiab siab vim yog qhov thaiv (tus ntiv tes xoo).Nws muaj zog ntau dua li cov dej uas tsis tau dhau lub valve.Hauv kev nkag siab yooj yim, qhov no yog throttling.

Txhawm rau siv qhov no hauv cov raj xa dej, lub kaw lus xav tau cov roj cua txias kom nyob ntawm qhov xav tau kub dua.Nrog lub throttling valve nyob rau hauv qhov chaw, roj kub nce.Qhov no yog vim cov molecules txhuam ib leeg thaum lawv sim tawm ntawm lub valve los ntawm qhov qhib txwv.

Tau qhov twg los: https://www.quora.com/What-is-the-throttling-process

Kev siv lub tshuab valve

Muaj ntau yam kev siv rau cov throttling li qub.Feem ntau ib tus tuaj yeem pom throttling li qub hauv cov ntawv thov kev lag luam hauv qab no:
● Cov tshuab cua txias
● Lub tub yees
● Hydraulic
● Chav siv
● Cov ntawv thov kub
● Kev siv tshuaj
● Kev siv tshuaj lom neeg
● Cov ntawv thov ua zaub mov
● Roj tshuab

Valves uas tuaj yeem siv rau Throttling

Tsis yog txhua lub valve yog rau throttling.Valve tsim yog ib qho ntawm cov laj thawj tseem ceeb vim li cas qee qhov valve yog qhov tsis tsim nyog throttlers.

Ntiaj teb

Globe li qub yog ib yam ntawm cov khoom nrov tshaj plaws.Lub ntiaj teb valve feem ntau yog siv los ua lub throttling valve.Qhov no belongs rau tsev neeg linear motion valve.Lub ntiaj teb disk txav nce lossis nqis nyob rau hauv kev sib raug zoo nrog lub nplhaib nyob ruaj ruaj.Nws lub disk lossis ntsaws tswj tus nqi ntawm cov xov xwm uas tuaj yeem dhau mus.

Qhov chaw nruab nrab ntawm lub rooj zaum thiab lub nplhaib tso cai rau lub ntiaj teb valve ua haujlwm zoo li lub valve zoo.Tsis tshua muaj kev puas tsuaj rau lub rooj zaum thiab disk lossis ntsaws vim nws tsim.

Kev txwv

Vim yog qhov tsim ntawm lub ntiaj teb valve, thaum siv rau hauv cov ntawv thov siab, nws xav tau lub tshuab hluav taws xob tsis siv neeg lossis lub tshuab hluav taws xob kom txav lub qia thiab qhib lub valve.Kev poob siab thiab ntau yam ntawm kev tswj dej ntws yog ob qho kev txiav txim siab rau kev muaj peev xwm ua tau zoo.

Kuj tseem muaj qhov tshwm sim ntawm cov dej xau vim lub rooj zaum puas vim qhov no los ntawm kev sib cuag nrog cov xov xwm ntws.Lub valve no tseem ua rau muaj kev cuam tshuam ntawm kev co, tshwj xeeb tshaj yog thaum cov xov xwm muaj roj.

Npauj npaim

Npauj npaim li qub zoo li lub rooj vag valve.Tab sis, ib qho ntawm lawv qhov sib txawv yog npauj npaim valve belongs rau lub quarter-tig valve tsev neeg.

Lub zog sab nraud ua rau ntawm tus actuator.Qhov no actuator yog txuas mus rau lub qia uas txuas mus rau lub disc.

Ntawm cov li qub tshaj plaws, npauj npaim valve yog qhov tsim nyog tshaj plaws rau throttling.Ib lub quarter tig tuaj yeem qhib lossis kaw lub valve.Yuav kom throttling tshwm sim, nws tsuas yog yuav tsum qhib me ntsis rau kev tshaj tawm kom dhau.

Kev txwv

Ib qho ntawm cov kev txwv ntawm cov npauj npaim li qub yog tias cov disc yog ib txwm nyob hauv txoj kev ntawm cov xov xwm ntws.Tag nrho cov disc yog yooj yim dua rau erosion.Tsis tas li ntawd, vim qhov kev tsim no, kev tu cov khoom sab hauv yog qhov nyuaj.

Txhawm rau kom npauj npaim valve kom ua haujlwm tau zoo, cov kev suav kom raug yuav tsum txheeb xyuas qhov siab tshaj plaws thiab kev xav tau siab.

Rooj vag

Lub rooj vag valve belongs rau tsev neeg linear motion valve.Lub rooj vag li qub muaj cov discs uas txav mus los rau qhov qhib thiab kaw cov li qub.Lawv feem ntau yog siv los ua qhov kev pabcuam qhib-tso tawm.Lub rooj vag li qub muaj cov kev txwv xws li throttling li qub.

Nyob rau hauv qhov yuav luag kaw aperture, throttling tshwm sim raws li nws txwv qhov ntws ntawm cov xov xwm.Qhov no ua rau kom nrawm ntawm cov xov xwm thaum nws tawm ntawm lub valve.

Kev txwv

Lub sijhawm nkaus xwb uas koj yuav tsum siv lub rooj vag li qub rau throttling yog thaum lub valve yog 90% kaw.Kaw nws rau li ntawm 50% yuav tsis ua tiav qhov kev xav tau ntawm kev muaj peev xwm.Qhov tsis zoo ntawm kev siv lub rooj vag valve yog qhov kev tshaj tawm ntawm cov xov xwm tuaj yeem yooj yim erode lub ntsej muag ntawm lub disc.

Tsis tas li ntawd, lub rooj vag li qub yuav tsum tsis txhob siv los ua cov throttling li qub rau lub sijhawm ntev.Lub siab tuaj yeem rhuav lub rooj zaum rooj tog kom lub valve tsis tuaj yeem kaw tag nrho.Ib qho ntxiv, yog tias qhov nruab nrab yog kua, muaj kev vibration.Qhov kev vibration no kuj tuaj yeem cuam tshuam rau lub rooj zaum.

Pinch

Pom tias yog ib qho ntawm cov qauv tsim yooj yim tshaj plaws, lub pinch valve muaj ib qho muag elastomer liner.Nws yog pinched los kaw siv cov kua dej.Yog li ntawd, nws lub npe.Raws li cov tsev neeg linear motion, lub pinch valve yog lub teeb yuag thiab yooj yim los tswj.

Pinch li qub tau zoo heev thaum tsis muaj menyuam thiab kev huv yog qhov tseem ceeb.Lub elastomer liner tiv thaiv cov hlau ntawm lub valve.

Lub qia txuas mus rau lub compressor uas yog lined raws nraim saum lub liner.Lub pinch valve kaw thaum lub compressor txo qis rau liner.

Throttling peev xwm ntawm lub pinch valve feem ntau yog nruab nrab ntawm 10% mus rau 95% txaus tus nqi peev xwm.Nws qhov kev ua tau zoo tshaj plaws yog nyob ntawm 50%.Qhov no yog vim qhov muag liner thiab du phab ntsa.

Kev txwv

Lub valve no tsis ua haujlwm zoo tshaj plaws thaum cov xov xwm muaj cov khoom ntse, tshwj xeeb tshaj yog thaum lub valve kaw 90%.Qhov no tuaj yeem ua rau kua muag nyob rau hauv elastomer liner.Lub valve no tsis haum rau cov khoom siv roj, thiab kev siv siab thiab kub.

Diaphragm

Lub diaphragm valve zoo ib yam li lub pinch valve.Txawm li cas los xij, nws cov khoom siv throttling yog ib qho elastomer diaphragm es tsis txhob siv cov elastomer liner.Koj tuaj yeem tshawb xyuas seb cov diaphragm li cas ua haujlwm hauv video no.

Nyob rau hauv lub pinch valve, lub compressor txo qis rau hauv liner thiab tom qab ntawd pinches nws kom tsis txhob muaj cov xov xwm ntws.Nyob rau hauv lub diaphragm valve, ib lub diaphragm disk nias tawm tsam hauv qab ntawm lub valve kom kaw nws.

Xws li tus qauv tso cai rau cov khoom loj dua txav los ntawm lub valve.Nruab nrab ntawm qhov ncaj los ntawm diaphragm valve thiab weir hom diaphragm valve, tom kawg yog zoo dua rau throttling.

Kev txwv

Txawm hais tias nws tuaj yeem muab cov ntaub ntawv pov thawj uas tsis yog-tawg, diaphragm li qub tsuas tuaj yeem tiv taus qhov kub thiab txias.Tsis tas li ntawd, nws tsis tuaj yeem siv rau hauv kev ua haujlwm ntau.

Koob

Lub koob valve zoo ib yam li lub ntiaj teb li qub.Hloov ntawm lub ntiaj teb zoo li disk, rab koob valve muaj rab koob zoo li disk.Qhov no yog qhov tsim nyog rau cov ntawv thov uas xav tau kev tswj xyuas meej.

Tsis tas li ntawd, koob li qub yog qhov zoo dua valve tswj regulators rau me me.Cov kua dej mus rau hauv txoj kab ncaj nraim tab sis tig 900 yog tias lub valve qhib.Vim tias 900 tus qauv tsim, qee qhov ntawm cov disk hla dhau lub rooj zaum qhib ua ntej kaw tiav.Koj tuaj yeem saib lub pinch valve 3D animation ntawm no.

Kev txwv

Cov koob li qub yog siv rau kev lag luam me me.Uas tau hais tias, thicker thiab viscous xov xwm tsis haum rau koob li qub.Qhov qhib ntawm lub valve no yog me me thiab cov khoom hauv slurries ua rau hauv kab noj hniav.

Yuav Ua Li Cas Xaiv Throttling Valve

Txhua hom throttling valve muaj nws qhov zoo thiab kev txwv.Nkag siab txog lub hom phiaj ntawm kev siv throttling valve ib txwm nqaim qhov kev xaiv rau qhov zoo ntawm throttling valve.

Valve Loj

Txoj cai valve loj txhais tau tias ua tam sim ntawd nrog rau yav tom ntej valve teeb meem.Piv txwv li, lub valve loj dhau txhais tau hais tias muaj peev xwm txo qis.Feem ntau tej zaum, nws yuav nyob ze nws txoj haujlwm kaw.Qhov no ua rau lub valve muaj kev vibrations thiab yaig.

Tsis tas li ntawd, lub valve uas loj dhau yuav muaj cov fittings ntxiv raws li kev hloov kho rau cov kav dej.Cov fittings yog kim.

Khoom siv ntawm kev tsim kho

Cov khoom siv lub cev valve yog ib qho tseem ceeb thaum xaiv lub throttling valve.Nws yuav tsum tau sib xws nrog cov khoom siv uas yuav dhau mus.Piv txwv li, tshuaj-raws li xov xwm yuav tsum dhau los ntawm lub valve uas tsis yog-corrosive.Media uas nyhav mus txog qhov kub thiab txias yuav tsum dhau mus rau hauv ib qho muaj zog alloy nrog txheej sab hauv.

Kev ua haujlwm

Actuation kuj plays lub luag haujlwm tseem ceeb hauv kev xaiv txoj cai throttling valve.Hauv kev siv cov raj xa dej, muaj cov piv txwv uas muaj zog muaj zog.Ib phau ntawv actuator yuav tsis ua haujlwm zoo hauv kev qhib lossis kaw lub valve vim qhov ntawd.

Kev sib txuas

Yuav ua li cas lub valve txuas nrog cov kav dej kuj tsim nyog xav txog.Nws yog ib qho tseem ceeb kom hloov mus rau cov yeeb nkab txuas uas twb muaj lawm es tsis yog cov kav dej hloov mus rau lub valve.

Nws yog tus nqi ntau dua kom haum lub valve rau cov yeeb nkab uas twb muaj lawm.Piv txwv li, thaum cov yeeb nkab kawg muaj flanges, lub valve yuav tsum muaj flanged kawg txuas.

Kev lag luam Standards

Cov qauv kev lag luam tseem ceeb ib yam nkaus.Muaj cov qauv rau hom khoom siv rau ib qho kev tshaj tawm.Kuj tseem muaj cov qauv ntawm kev sib txuas kawg lossis qhov tuab ntawm cov hlau siv rau lub valve.
Cov qauv zoo li no coj kev nyab xeeb rau kev siv.Feem ntau muaj qhov kub thiab txias thaum siv cov throttling li qub.Los ntawm qhov ntawd, nws yog ib qho tseem ceeb kom nkag siab txog cov qauv no rau kev nyab xeeb ntawm txhua tus.

Hauv Summary

Txawm hais tias feem ntau cov li qub muaj peev xwm txo qis, ib tus tsis tsuas yog siv lawv li ntawd.Rau lub valve kom ntev dua, nws yog qhov zoo tshaj plaws kom paub tias hom valve zoo li cas rau ib daim ntawv thov throttling.
Daim ntawv thov valve chaw tsim tshuaj paus: Qhov kawg Guide: Qhov zoo tshaj plaws Valve Manufacturers nyob rau hauv Suav teb