Lub condenser yog cais raws li txoj kev txias:
Cua txias condenser, dej-txias condenser (plhaub thiab raj condenser, ob-pipe condenser, plhaub-coil condenser, kauv phaj condenser, immersion condenser), evaporative thiab tshuaj tsuag condenser.
Cua txias condenser
1. Cov khoom siv:
Nws feem ntau yog siv rau hauv qee lub tub yees me me xws li lub tub yees, lub freezers, cov cua txias me me, lub tsheb txias, thiab lub tsheb cua txias.
Qhov zoo: Tsis xav tau dej, kev teeb tsa yooj yim, thiab tuaj yeem tso rau ntawm lub ru tsev; lub tshav kub hloov coefficient yog me me, thiab nws muaj kev cuam tshuam zoo heev los ntawm ib puag ncig kub, uas deteriorates ib puag ncig thiab nyuaj rau tshem tawm cov plua plav.
Kev txwv: Tsuas yog siv hauv Freon tub yees.
Kev faib tawm: Raws li huab cua ntws, nws tuaj yeem muab faib ua ntuj convection txias condenser thiab yuam convection txias condenser.
2. Natural convection txias condenser
(1) Muaj pes tsawg leeg: liab tooj liab yeeb nkab (seamless steel yeeb nkab) thiab tooj liab-plated steel hlau.
(2) Nta: Tsis muaj kiv cua, txuag hluav taws xob noj, tsis tshua muaj suab nrov thiab tsis tshua muaj cua sov hloov coefficient.
3. quab yuam convection txias condenser
(1) Cov khoom sib xyaw: tooj liab raj (seamless steel raj), fins thiab axial kiv cua.
(2) Nta: kev siv hluav taws xob siab, lub suab nrov thiab siab hloov pauv coefficient.
Dej-txias condenser
1. Plhaub thiab raj dej-txias condenser
Nta: siab kub hloov coefficient, me me hneev taw, yooj yim tu; siv dej loj, lub cev loj.
Muaj feem xyuam rau: loj thiab nruab nrab-qhov loj me ammonia tub yees tshuab.
Kab rov tav plhaub thiab raj condenser:
Muaj feem xyuam rau: Ammonia lossis Freon tub yees system
2. Ob chav yeeb nkab condenser
Nta: siab kub hloov coefficient, me me hneev taw, qauv yooj yim; kev siv hlau loj, kev tu yooj yim, thiab dej tsis kam loj.
3. Plhaub-coil condenser
Nta: Cov qauv yooj yim, tsis muaj kev tu txhua yam, nruj dej kom zoo, yuav tsum tau ntxuav cov tshuaj tsis tu ncua.
4. Kauv phaj condenser
Nta: me me, lub teeb yuag, siab hloov pauv coefficient, tab sis tsis haum rau kev kub siab, sab hauv tsis yooj yim los ntxuav thiab kho, thiab cov dej yuav tsum nruj heev.
Evaporative condenser
Nta: dej txuag, tus nqi qis, qauv yooj yim, yooj yim teev tshem tawm, me me.
Txau condenser
Nta: yooj yim qauv, yooj yim rau siv, yooj yim tshem tawm nplai, dej tsis zoo yuav tsum tau, tab sis tsis tshua muaj hlau noj, loj pem teb chaw, tsis tshua muaj kub hloov coefficient.
Evaporator
1. Muaj nuj nqi: Cov kua refrigerant vaporizes hauv cov evaporator kom nqus tau cov cua sov ntawm cov cua txias nruab nrab kom ua tiav lub hom phiaj ntawm lub tub yees.
2. Kev faib tawm: Raws li qib ntawm qhov puv thiab evaporation ntawm evaporator, muaj plaub hom:
Qhuav (tsis muaj puv) evaporator, recirculation evaporator, dej nyab evaporator, tshuaj tsuag evaporator.
Qhuav evaporator
1. Kev txhais: Ib qho evaporator uas cov kua refrigerant yog vaporized tag nrho hauv lub raj ntawm ib zaug.
2. Cov khoom siv: feem ntau siv rau hauv qhov chaw txias txias lossis txias cia cua txias.
3. Cov yam ntxwv ntawm cov evaporator qhuav
(1) Qhov zoo: cov kua filling tsawg dua, tsis tas yuav tsum muaj cov kua cia lossis cov kua me me cia, yooj yim rau cov roj lubricating hauv cov evaporator rov qab mus rau lub compressor, tsis tshua muaj cua txias, thiab txo qhov kev pheej hmoo ntawm kev khov.
(2) Disadvantages: low heat transfer coefficient.
4. Kev faib tawm: Raws li cov khoom cua txias sib txawv, nws tuaj yeem muab faib ua: hom ua kua txias (U-tube hom, hom raj ncaj, phaj evaporator), cua txias hom (hom raj hom, finned raj hom).
(1) U-tube qhuav evaporator
Qhov zoo: Cov pab pawg tube tuaj yeem sib sau ua ntej, cov av sab nraum lub raj ntxuav tau tuaj yeem raug tshem tawm, thermal kev ntxhov siab tuaj yeem raug tshem tawm, cov tub yees faib txawm tias, thiab cov cua sov hloov tau zoo.
Qhov tsis zoo: cov pwm sib txawv yuav tsum tau siv los tsim cov pab pawg raj, thiab cov kav dej ntev ntev tsis tuaj yeem siv, thiab cov raj tsis yooj yim los hloov thaum lawv puas.
(2) Ncaj raj qhuav evaporator
Muaj pes tsawg leeg: plhaub, raj dhau, baffle, kawg cap, raj ntawv, thiab lwm yam .;
Txhawm rau txhim kho cov cua sov hloov coefficient, lub raj sab hauv tuaj yeem ua lub raj du lossis lub raj nrog longitudinal fins. Feem ntau, cov fin raj sab nraud tsis siv.
(3) Phaj evaporator
Qhov zoo: tsis tshua muaj tsis kam, compact qauv, tsis tshua muaj hlau noj, adjustable tshav kub hloov chaw, thiab lwm yam.
Recirculating evaporator
1. Txhais: Ib qho evaporator uas cov kua refrigerant xav tau ntau lub voj voog kom vaporize tag nrho. txoj cai ua haujlwm:
2. Cov Nta: Nws muaj cov coefficient ntawm cov cua kub hloov siab, tab sis yog qhov loj me, yuav tsum muaj cov tub yees loj, thiab cov nqi khiav lag luam siab.
Dej nyab evaporator
Nta: compact qauv, zoo thermal hloov nyhuv, yooj yim rau nruab thiab yooj yim rau siv; tab sis tus nqi ntawm cov tub yees yog loj, thiab cov evaporation kub nyob rau hauv qab yog me ntsis siab dua los txo qhov kub hloov qhov kub qhov sib txawv. Rau Freon evaporator, cov roj lubricating yog qhov nyuaj dua rau kev tso tawm, thiab cov tub yees tuaj yeem khov.
