Precise Temperature Control rau Laser Systems thiab Industrial Applications txij li xyoo 2002
Lus
Raws li cov tshuaj muaj pes tsawg leeg, cov tub yees muaj chiller tuaj yeem muab faib ua 5 pawg: inorganic compound refrigerants, freon, saturated hydrocarbon refrigerants, unsaturated hydrocarbon refrigerants, thiab azeotropic sib tov refrigerants. Raws li lub condensing siab, chiller refrigerants tau muab faib ua 3 pawg: high-temperature (low-pressure) refrigerants, medium-temperature (medium-pressure) refrigerants, thiab low-temperature (high-pressure) refrigerants. Cov tub yees siv dav hauv kev lag luam chillers yog ammonia, freon, thiab hydrocarbons.
Nyob rau theem pib ntawm kev tsim kho kev lag luam, R12 thiab R22 tau siv nyob rau hauv feem ntau cov khoom siv tub yees. Lub peev xwm txias ntawm R12 yog qhov loj heev, thiab nws lub zog ua haujlwm kuj tseem siab. Tab sis R12 ua rau muaj kev puas tsuaj loj rau cov txheej txheej ozone thiab raug txwv nyob hauv ntau lub tebchaws.
Cov tub yees R-134a, R-410a, thiab R-407c, ua raws li kev tiv thaiv ib puag ncig thoob ntiaj teb, yog siv rau hauv S&A industrial chillers:
(1) R-134a (Tetrafluoroethane) Cov tub yees
R-134a yog ib qho kev lees paub thoob ntiaj teb cov tub yees uas feem ntau siv los hloov R12. Nws muaj qhov kub thiab txias evaporation ntawm -26.5 ° C thiab sib faib cov khoom zoo sib xws nrog R12. Txawm li cas los xij, tsis zoo li R12, R-134a tsis muaj teeb meem rau txheej txheej ozone. Vim li no, nws tau siv dav hauv lub tsheb cua txias, kev lag luam thiab kev lag luam tub yees tshuab, thiab ua tus neeg sawv cev foaming rau kev tsim cov khoom siv rwb thaiv tsev nyuaj. R-134a kuj tseem siv tau los tsim lwm cov tub yees sib xyaw, xws li R404A thiab R407C. Nws daim ntawv thov tseem ceeb yog raws li lwm lub tub yees rau R12 hauv tsheb cua txias thiab tub yees tub yees.
(2) R-410a tub yees
Lub cev thiab tshuaj lom neeg: Nyob rau hauv qhov kub thiab txias, R-410a yog cov tshuaj chlorine-dawb, fluoroalkane, uas tsis yog-azeotropic mixed refrigerant. Nws yog ib qho xim tsis muaj xim, compressed liquefied gas uas yog khaws cia rau hauv lub tog raj kheej steel. Nrog rau Ozone Depletion Potential (ODP) ntawm 0, R-410a yog ib puag ncig-phooj ywg refrigerant uas tsis ua mob rau cov txheej txheem ozone.
Daim ntawv thov tseem ceeb: R-410a feem ntau yog siv los hloov R22 thiab R502. Nws paub txog nws txoj kev huv, tsis muaj toxicity, tsis-combustibility, thiab kev ua haujlwm txias txias. Yog li ntawd, nws yog dav siv nyob rau hauv tsev neeg cua txias, me me ua lag luam cua txias, thiab tsev neeg central cua txias.
(3) R-407C tub yees
Lub cev thiab tshuaj lom neeg: R-407C yog cov tshuaj chlorine-dawb fluoroalkane uas tsis yog-azeotropic tov cov tub yees nyob rau hauv ib txwm kub thiab siab. Nws yog ib qho xim tsis muaj xim, compressed liquefied gas uas yog khaws cia rau hauv lub tog raj kheej steel. Nws muaj Ozone Depletion Potential (ODP) ntawm 0, ua rau nws kuj yog ib puag ncig-phooj ywg refrigerant uas tsis ua mob rau ozone txheej.
Daim ntawv thov tseem ceeb: Raws li kev hloov pauv rau R22, R-407C yog tus cwj pwm los ntawm nws txoj kev huv, tsis muaj tshuaj lom, tsis muaj hluav taws xob, thiab kev ua haujlwm txias txias, dav siv hauv cov cua txias hauv tsev thiab cov cua txias me me thiab nruab nrab.
Nyob rau niaj hnub no txoj kev loj hlob ntawm kev lag luam, kev txuag ntawm ib puag ncig tau dhau los ua kev txhawj xeeb, ua "carbon neutrality" yog qhov tseem ceeb tshaj plaws. Teb rau qhov sib txawv no, S&A industrial chiller chaw tsim tshuaj paus tab tom ua ib qho kev sib koom ua ke los siv cov eco-phooj ywg refrigerants. Los ntawm kev sib koom tes txhawb kev siv hluav taws xob thiab txo qis qis, peb tuaj yeem ua haujlwm los tsim kom muaj "lub zos thoob ntiaj teb" uas muaj cov toj roob hauv pes zoo nkauj.
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TEJ S&A Chiller tau tsim nyob rau hauv 2002 nrog 22 xyoo ntawm kev tsim chiller, thiab tam sim no tau lees paub tias yog lub tshuab cua txias pioneer thiab txhim khu kev qha tus khub hauv kev lag luam laser.
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