Refrigerant Gas ua haujlwm li cas?

Refrigerant gas nqus cov cua kub ntau thaum evaporating thiab tso cua sov thaum condensing.

Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm cov roj tub yees yog nyob ntawm lawv cov theem hloov pauv, uas tso cai rau lawv kom evaporate ntawm qhov kub thiab txias thiab condense ntawm qhov kub thiab txias. Thaum lub tub yees nyob rau hauv qhov kub thiab txias, nws absorbs sab nraud cua sov thiab evaporates mus rau hauv ib tug roj; Thaum nyob rau hauv qhov kub thiab txias, lub tub yees tso tawm lub tshav kub lub zog nws nqa thiab condenses rau hauv cov kua. Thaum lub sij hawm tus txheej txheem no, cov tub yees tsis tu ncua hloov theem ntawm gaseous thiab kua xeev, yog li tsis tu ncua kho qhov kub thiab txias.

Cov roj tub yees tau siv dav hauv ntau yam khoom siv tub yees xws li cua txias, tub yees, txias cia, tsheb cua txias, thiab tshuab tub yees. Kev siv cov roj tub yees tuaj yeem muab cov tub yees thiab cua txias rau cov khoom siv no. Piv txwv li, thaum lub sij hawm txias ntawm lub tub yees, cov roj refrigerant yog txhaj rau hauv lub freezer compartment. Thaum nws rhuab, nws evaporates, absorbs tshav kub thiab tshem tawm cov cua sov nyob rau hauv lub freezer compartment, yog li ua kom lub freezer compartment txias.

Raws li kev sib xyaw tshuaj sib txawv, cov tub yees tuaj yeem muab faib ua cov pawg hauv qab no: cov khoom tsis muaj tshuaj lom neeg, cov halides ntawm cov dej saturated hydrocarbons, hydrocarbons, azeotropic refrigerants, thiab non-azeotropic refrigerants.

1) Inorganic compounds

2) Halides ntawm saturated hydrocarbons (xws li chlorine-muaj cov tshuaj xws li perchlorofluorocarbons thiab hydrochlorofluorocarbons)

3) Hydrocarbons

4) Azeotropic tub yees

5) Tsis yog-azeotropic refrigerant

Cov tub yees uas tsis yog azeotropic qhia tias thawj tus lej tom qab R yog 4, thiab ob tus lej tom qab raug suav nrog hauv qhov kev txiav txim ntawm kev tshawb pom, xws li R400, R401, R407A, R407B, R407C, thiab lwm yam. Cov tub yees sib xyaw muaj cov khoom sib xws tab sis sib txawv proportions. , thiab txawv los ntawm cov lej ua raws li cov tsiaj ntawv.

Tswv yim:Txhawm rau kom paub qhov txawv ntawm qhov kev puas tsuaj ntawm cov tub yees rau cov txheej txheem ozone, R feem ntau hloov los ntawm CFC, HCFC, HFC, thiab HC feem.

CFC- perchlorofluorocarbon, muaj chlorine, fluorine thiab tsis muaj hydrogen. Nws muaj kev puas tsuaj rau txheej ozone. Peb lub teb chaws tau txwv tag nrho cov khoom tsim thiab siv tshwj tsis yog rau lub hom phiaj tshwj xeeb.

HCFC- Hydrochlorofluorocarbon, muaj cov tshuaj chlorine, fluorine thiab hydrogen, muaj kev puas tsuaj rau txheej ozone. Raws li kev hloov pauv rau CFC, nws tab tom raug txiav tawm ntawm qhov nrawm nrawm.

HFC- hydrofluorocarbon, tsis muaj cov tshuaj chlorine lossis fluorine, tsis muaj kev puas tsuaj rau txheej txheej ozone, tab sis muaj peev xwm ua rau lub tsev cog khoom siab. Raws li Kigali Kev Hloov Kho rau Montreal Protocol, cov txheej txheem tshem tawm yog pib.(Cov HFC cov tub yees muaj xws li: R134a refrigerant gas, R410a refrigerant gas, R404a refrigerant gas, thiab lwm yam.)

HC- hydrocarbon, tsis muaj cov tshuaj chlorine lossis fluorine, tsis muaj kev puas tsuaj rau txheej txheej ozone, thiab muaj peev xwm ua rau lub tsev cog khoom tsawg.

Muaj qee yam kev nyab xeeb thaum siv cov tub yees. Piv txwv li, refrigerant to tuaj yeem ua rau muaj kev puas tsuaj rau tib neeg lub cev thiab ua rau muaj kev tawg. Yog li ntawd, cov cai tswj kev nyab xeeb yuav tsum tau ua raws li nruj me ntsis hauv kev tsim thiab siv cov khoom siv tub yees kom muaj kev nyab xeeb ntawm cov neeg ua haujlwm thiab cov khoom siv.