Thermal expansion valve, capillary raj, hluav taws xob expansion valve, peb qhov tseem ceeb throttling khoom siv
Lub tshuab ntsuas hluav taws xob yog ib qho tseem ceeb hauv cov khoom siv tub yees. Nws txoj haujlwm yog txhawm rau txo cov kua dej khov (lossis cov kua roj) hauv qab ntawm cov condenser lossis cov kua tau txais rau kev nqus dej siab thiab cua sov tom qab lub zog. Raws li kev hloov pauv ntawm load, cov dej ntws ntawm cov tub yees nkag mus rau cov evaporator raug hloov kho. Feem ntau siv throttling cov khoom siv suav nrog cov hlab capillary, thermal nthuav dav, thiab ntab li qub.
Yog tias cov kua roj uas tau muab los ntawm cov tshuab throttling rau cov dej txau tau txuas rau lub tshuab nqus tsev ua ke nrog cov yees duab ua ke nrog cov pa hluav taws xob ua ke, ua rau muaj cov ntaub ntub dej.
Ntawm qhov tsis sib xws, yog tias cov khoom siv ua kua yog qhov me me piv nrog cov cua sov, ib feem ntawm cov cua sov sib pauv ntawm lub Evaporator yuav tsis muaj peev xwm ua haujlwm tau zoo, thiab txawm tias muaj kev ua haujlwm hnyav ntxiv; Thiab lub peev xwm cua txias ntawm lub system yuav raug txo kom tsawg, qhov cua txias kom tsawg, thiab cov tshuab pa taws kub tawm, uas cuam tshuam lubrication li qub ntawm lub compressor.
Thaum cov kua dej hauv lub cev dhau los ntawm lub qhov me me, cov kua dej tsis tshua muaj zog, thiab cov kua dej tsis muaj peev xwm ua tiav lub hom phiaj ntawm kev txo lub siab thiab tswj hwm kev ntws.
Throttling yog ib qho ntawm plaub txheej txheej tseem ceeb hauv lub voj voog.
Lub tshuab throttling muaj ob lub zog:
Ib qho yog rau throttle thiab depressurize cov kua mis siab txias tawm los ntawm tus condenser mus rau evaporation siab siab
Qhov thib ob yog kho tus nqi ntawm cov kua tub yees nkag mus rau lub Evaporator raws li cov kev hloov pauv system.
1. Thermal Expansion Valve
Lub qhov hluav taws xob nthuav dav dav hlau tau siv dav hauv Free-tub yees. Los ntawm kev ua haujlwm ntawm kev kub ntxhov kub lub tshuab, nws hloov pauv nrog qhov ntsuas kub hloov ntawm lub hom phiaj ntawm qhov ua kom haum cov kua tawm ntawm cov tub yees.
Feem ntau cov hluav taws xob nthuav dav muaj lawv cov superheat teeb ntawm 5 txog 6 ° C ua ntej tawm hauv lub Hoobkas. Tus qauv ntawm lub valve kom paub tias thaum lub superheat tau nce los ntawm lwm 2 ° C, lub pob valve yog nyob rau hauv lub chaw qhib tag nrho. Thaum superheat yog li 2 ° C, lub Explansion lub valve yuav raug kaw. Lub caij nplooj ntoo hluav taws xob hloov kho rau kev tswj hwm SuperSheat, kev hloov kho tau yog 3 ~ 6 ℃.
Feem ntau hais lus, qib siab dua ntawm superheat teeb tsa los ntawm cov cua sov nqus dej, yog li nce qib cua sov tuaj yeem yog superheated ntawm no. Nws nyob ib feem ntawm qhov chaw sov hloov chaw, yog li thaj chaw ntawm lub tub yees ua pa tawm, uas yog hais, qhov chaw ntawm Evaporator tsis tau siv.
Txawm li cas los xij, yog tias qib ntawm superheat yog tsawg heev, cov tub yees txias yuav raug coj mus rau hauv lub compressor, uas ua rau qhov tsis txaus ntseeg ntawm cov rauj rauj. Yog li ntawd, cov kev cai ntawm superheat yuav tsum tsim nyog kom ntseeg tau tias muaj cov tub yees kom tau muab tso rau hauv cov Evaporator thaum tiv thaiv cov tub yees ua kua hauv lub taub hau.
Lub Thermal nthuav dav valve feem ntau yog suav nrog ntawm lub cev valve, qhov kub thiab txias pob thiab lub raj capillary. Muaj ob hom kev nthuav dav hluav taws xob valve: Hom sib npaug ntawm sab hauv thiab sab nraud yam sib txawv raws li cov txheej txheem sib txawv.
Sab Hauv Qhov Ntsuas Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob
Sab hauv lub ntsuas hluav taws xob kub yog suav nrog lub cev valve, thawb tus pas, ntsuas kub, sib txuas ua yeeb yaj kiab thiab lwm yam.
Sab nraud Ntsuas Ntsuas Lub Va Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob
Qhov sib txawv ntawm sab nraud hom sib npaug hom hluav taws xob thermal hluav taws xob thiab cov hluav taws xob sib npaug yog tias qhov hluav taws xob sib npaug yog siv los sib txuas nrog lub qhov hluav taws xob sab nraud. Nyob rau hauv txoj kev no, lub tub yees txias ua yeeb yam rau hauv qab ntawm cov diaphragm tsis yog po ntawm cov inlet ntawm lub inletling, tab sis lub siab pc ntawm qhov hluav taws xob ntawm lub evaporator. Thaum lub zog ntawm lub diaphragm yog sib npaug, nws yog pg = pc + pw. Qhov qhib kev kawm ntawm lub valve tsis cuam tshuam los ntawm kev ntws tsis kam nyob rau hauv the evaporator coil, yog li kov yeej cov hom luv ntawm sab hauv cov hom sib npaug. Hom kev sib npaug sab nraud feem ntau siv nyob rau qee lub sijhawm uas cov Evaporator Coil kuj loj.
Feem ntau, cov ncu SuperHeat qib siab thaum lub valve lub valve yog tau hu ua kev kaw superhaeat thaum lub valve lub qhov pib qhib. Lub kaw superheat muaj cuam tshuam nrog lub preload ntawm lub caij nplooj ntoo hlav, uas tuaj yeem hloov kho qib siab.
SuperSheat thaum lub caij nplooj ntoo hlav tau hloov kho rau txoj haujlwm loosest yog hu ua qhov tsawg kawg nkaus kaw satre; Ntawm qhov tsis sib xws, Superheat thaum lub caij nplooj ntoo hlav hloov kho kom nruj rau qhov siab tshaj plaws kaw superheat. Feem ntau, qhov tsawg kawg nkaus kaw superhhe kev nthuav dav valve tsis ntau tshaj 2 ℃, thiab lub siab tshaj plaws kaw superheat degree tsis tsawg tshaj 8 ℃.
Rau qhov sib npaug sab hauv thermal nthuav dav valve, lub epaporation siab ua nyob rau hauv lub diaphragm. Yog hais tias cov kev tiv thaiv ntawm cov Evaporator yog tus loj heev, yuav muaj ib qho loj tiv taus thaum qee lub tub yees, uas yuav cuam tshuam rau qee qhov kev nthuav dav hluav taws xob, uas yuav cuam tshuam rau qee lub valve. Kev ua haujlwm ntawm cov Evaporator nce, ua rau nce nyob rau hauv supeheat degree ntawm qhov hluav taws xob ntawm lub tshav kub hloov ntawm lub tshav kub hloov ntawm lub tshav kub hloov.
Rau cov sab nraud nthuav dav hluav taws xob cov li qub, lub siab ua raws li cov diaphragm yog qhov kev ua haujlwm siab ntawm cov evaporator, tsis yog kev hloov kho siab, thiab qhov xwm txheej tau txhim kho.
2. Capillary
Lub capillary yog qhov yooj yim tshaj plaws throttling. Lub capillary yog lub tshuab tooj liab heev nrog lub sijhawm ntev, thiab nws sab hauv taub yog feem ntau 0.5 rau 2 hli.
Cov yam ntxwv ntawm capillary li throttling ntaus ntawv
(1) Lub capillary yog kos los ntawm lub raj liab liab, uas yooj yim rau kev tsim khoom thiab pheej yig;
(2) Tsis muaj qhov chaw txav chaw, thiab nws tsis yooj yim ua rau tsis ua haujlwm thiab xau;
(3) Nws muaj cov yam ntxwv ntawm kev them tus kheej,
(4) Tom qab cov tub yees compressor nres khiav khiav, lub siab ntawm qhov siab sab thiab lub siab ntawm qhov chaw siab qis hauv cov txheej txheem hauv tub yees yuav ua tau sai. Thaum nws pib khiav dua, lub cev muaj zog ntawm cov tub yees compressor pib.
3. Kev nthuav dav hluav taws xob valve
Lub tshuab hluav taws xob nthuav dav yog hom ceev, uas siv rau hauv kev txawj ntse tswj cov tshuab cua txias. Qhov zoo ntawm cov hluav taws xob nthuav dav valve yog: ib tug loj khiav kev hloov kho ntau; Kev tswj hwm siab; Haum rau kev tswj hwm ntse; Haum rau kev hloov pauv sai nyob rau hauv High efficiency tub yees khiav.
Qhov zoo ntawm cov hluav taws xob nthuav dav
Kev hloov kho loj loj;
Kev tswj siab siab;
Haum rau kev tswj hwm ntse;
Tuaj yeem siv rau kev hloov pauv sai sai nyob rau hauv tub yees ntws nrog kev ua haujlwm siab.
Qhov qhib ntawm lub tshuab hluav taws xob hluav taws xob yuav raug yoog raws li cov kua hluav taws xob tau muab los ntawm kev tswj cov kua thiab tub yees kev ua haujlwm tuaj yeem ua tiav.
Kev siv lub chaw nthuav dav hluav taws xob tuaj yeem txhim kho kev siv hluav taws xob txhim kho, thiab kho kom sai sai haum, thiab txhim kho cov txheej txheem hluav taws xob kev sib piv ntawm cov kab ke. Rau high-zog inverter cua txias, hluav taws xob nthuav dav yuav tsum tau siv raws li cov khoom siv vvertling.
Cov qauv ntawm cov hluav taws xob nthuav dav valve muaj peb feem: Nrhiav tau, tswj thiab ua tiav. Raws li cov txheej txheem tsav tsheb, nws tuaj yeem faib ua hom electromagetic thiab hluav taws xob. Fais yam hluav taws xob tau muab faib ua cov hom ncaj qha thiab ua kom pom. Lub cev muaj zog stepping nrog lub dav hlau valve yog hom ncaj qha, thiab lub cev muaj zog nrog lub iav teeb tsa yog ib hom redeleration.
Lub Sijhawm Post: Nov-25-2022
