Cov khoom siv tub yees xws li dej chillers, chromatography tub yees, tshuab ua dej khov, tub yees txias tshaj, thiab lwm yam, lawv lub zog tsav yog lub tshuab ua kom txias txias. Lub voj voog tag nrho hauv tub yees nyob ntawm lub tshuab hluav taws xob tub yees, yog li lub luag haujlwm ntawm lub tub yees compressor yog qhov ntsuas tsis tau! Qhov tseem ceeb tshaj plaws hauv kev xaiv ntawm cov cuab yeej siv tub yees yog kev yuav khoom siv tub yees txias, uas txiav txim siab ncaj qha tus nqi ntawm tub yees. Kab lus no qhia txog lub luag haujlwm, kev faib tawm thiab kev siv lub peev ntawm tub yees compressors! Cov tub yees compressor, uas yog, cov tub yees compressor, yog qhov tseem ceeb uas txiav txim siab lub peev xwm ntawm lub vapor compression tub yees, thiab muaj kev cuam tshuam ncaj qha rau kev ua haujlwm, suab nrov, kev co, ua txij nkawm thiab kev pab cuam lub neej ntawm lub system.
Lub luag haujlwm ntawm lub tshuab ua kom txias hauv lub nruab zog yog nqus cov cua txias tso tawm los ntawm cov evaporator, ua kom nws qhov kub thiab siab, thiab tawm mus rau hauv lub kwj. Hauv cov looj, qhov siab-txias superheated refrigerant vapor condenses exothermically ntawm cov hws. Tom qab ntawd los ntawm cov ntsiab lus kub siab, cov roj-kua roj-kua sib xyaw sib xyaw ntws mus rau cov evaporator, qhov twg cov kua dej txias nqus cov cua sov thiab rhaub ntawm qhov kub ntawm qhov evaporation, hloov mus rau vapor thiab nkag mus rau hauv compressor, yog li paub qhov kev hloov mus txuas ntxiv ntawm cov tub yees hauv lub tub yees kaw lus. Nws tuaj yeem pom tau tias lub tshuab hluav taws xob txias yog qhov txheeb ze" lub siab" ntawm lub system.
Muaj ntau ntau yam ntawm lub tub yees compressors. Raws li txoj cai ua haujlwm, lawv tuaj yeem faib ua hom ntim thiab nrawm hom. Ntim hom tuaj yeem muab faib ua ob hom raws li kev txav ntawm cov yam ntxwv ntawm seem compression: reciprocating piston hom (hu ua piston hom) thiab hom teb. Raws li cov yam ntxwv ntawm lub tshuab compressor, hom qeeb mentshis tau muab faib ua dov piston hom (tseem hu ua dov rotor yam), zawv zawg vane hom, ntsia hlau hom (suav nrog ntxaib ntsia hlau hom, ntsia hlau tib hom), scroll hom, thiab lwm yam kev ceev nrawm yog nqa tawm tsis tu ncua raws li cov txheej txheem compressor compression, thiab daim ntawv thov lub ntsiab yog lub centrifugal tub yees compressor.
Raws li kev faib tawm ntawm kev ntsuas kub evaporation, feem ntau nws yuav muab faib ua peb qhov txuas: siab kub, nruab nrab kub thiab ntsuas kub tsawg. Kev kub siab txias tub yees compressor: -10 ° C ~ 10 ° C; nruab nrab kub tub yees compressor: -20 ° C ~ -10 ° C; qis kub txias tub yees compressor: -45 ° C ~ -20 ° C. Raws li kev faib tawm ntawm cov qauv sib khi, feem ntau yuav muab faib ua qhib hom compressors thiab kaw-hom compressors. Lub hermetic compressor tuaj yeem faib ua ib nrab-hermetic thiab tag nrho hermetic.
