Ulwazi olubanzi lwamafutha esiqandisini

Ukuhlukaniswa kwamafutha efriji

Omunye uwoyela wamaminerali wendabuko;

Enye i-polyethylene glycol esters yokwenziwa efana ne-PO, uwoyela we-Polyester ubuye uwoyela wokwenziwa we-polyethylene glycol wokugcoba.Uwoyela we-POE ungasetshenziswa hhayi kuphela ohlelweni lwesiqandisi se-HFC, kodwa naseziqandisini ze-hydrocarbon.Uwoyela we-PAG ungasetshenziswa ku-HFC, i-hydrocarbon ne-ammonia amasistimu njengamafriji.

Umsebenzi oyinhloko wamafutha efriji

·Nciphisa umsebenzi wokungqubuzana, ukushisa kokungqubuzana nokuguga

·Gcwalisa indawo yokuvala ngamafutha ukuze uqinisekise ukusebenza kokuvala futhi uvimbele ukuvuza kwesiqandisi.

·Ukunyakaza kukawoyela kususa izinhlayiya eziqhumayo ezikhiqizwe ukungqubuzana kwensimbi, ngaleyo ndlela kuhlanzwe indawo yokushayisana.

·Nikeza amandla asebenza ngaphansi kwamanzi omshini wokuthulula

Izidingo zokusebenza zamafutha afakwe efrijini

·I-viscosity efanelekayo: i-viscosity yamafutha omshini wokufaka isiqandisi ayiqinisekisi nje kuphela ukuthi indawo yokungqubuzana yengxenye ngayinye ehambayo ine-lubricity enhle, kodwa futhi isusa ukushisa okuthile emshinini wesiqandisi futhi idlala indima yokuvala.Uma isiqandisi esisetshenziswa umshini wokuqandisa Ukuncibilika okukhulu kuwoyela womshini wesiqandisi, uwoyela one-viscosity ephezulu kufanele kubhekwe ukunqoba ithonya lamafutha ahlanjululwe yisiqandisi.

·Indawo encane eguquguqukayo, i-flash ephezulu: inani lokushibilika kukawoyela oqandisekayo likhulu, ngomjikelezo wesiqandisi, inani likawoyela liwukuthi, uma izingxenye zikawoyela wesiqandisi zinjalo, ububanzi obuncane kakhulu be-flash point kufanele futhi bube ngaphezu kwezinga lokushisa lomshini ongaphezu kuka-25 ~ 30. ℃.

·Ukuzinza okuhle kwamakhemikhali nokuqina kwe-oxidation eshisayo: emshinini wokugcina wokucindezelwa kwesiqandisi izinga lokushisa liyi-130 ℃ ~ 160 ℃, izinga lokushisa eliqandisiwe likawoyela kanye nokubola kwe-metamorphism ehlala njalo, kukhiqiza idiphozithi yesiqandisi ukungasebenzi kahle komshini nokuguga.Ngaphezu kwalokho, ukubola imikhiqizo yamafutha izosabela ngesiqandisi, okuzokwenza umphumela wokupholisa ube mubi kakhulu, futhi i-asidi ewumphumela izogqwala kakhulu izingxenye zesiqandisi.

·Awekho amanzi nokungcola: ngenxa yokuthi amanzi aqandayo ku-evaporator azothinta ukusebenza kahle kokushisa, ukuthintana nesiqandisi kuzosheshisa ukubola kwesiqandisi futhi kugceme izinto zokusebenza, ngakho uwoyela wesiqandisi awukwazi ukuqukatha amanzi nokungcola.

·Okunye: Amafutha afakwa esiqandisini kufanele futhi abe nezinto ezinhle zokunqanda ukukhihliza amagwebu futhi angancibiliki noma andise abe yirabha, izintambo eziqinile nezinye izinto.

Izinto okufanele zicatshangelwe ekukhetheni uwoyela wesiqandisi

·I-Viscosity: uma isivinini se-compressor siphezulu, kufanele kube phezulu i-viscosity yamafutha ayisiqandisi.

·Ukuzinza kokushisa:Ukuzinza kwe-thermal ngokuvamile kukalwa nge-flash point yamafutha enjini eqandisiwe.Iphuzu lokukhanya libhekisela ezingeni lokushisa lapho isitimu samafutha omshini wesiqandisi sibaneka ngemva kokushisisa.Iphuzu lokukhanyisa lamafutha esiqandisini kufanele libe ngaphezu kwalokho. Izinga lokushisa le-compressor exhaust, elifana no-R717, i-compressor engu-R22 esebenzisa i-flash point yamafutha efriji kufanele ibe ngaphezu kuka-160 ℃.

·Uketshezi: uwoyela womshini oqandisayo kufanele ube noketshezi oluhle ezingeni lokushisa eliphansi.Ku-evaporator, ngenxa yokushisa okuphansi kanye nokwanda kwe-viscosity yamafutha, uketshezi kuzoba mpofu.Lapho uwoyela womshini wokuqandisa ufinyelela ekushiseni okuthile, uzoyeka ukugeleza.Iphuzu lokuqandisa lamafutha omshini wokuqandisa liyadingeka ukuba libe liphansi, ikakhulukazi iphuzu lokuqandisa lamafutha omshini we-cryogenic libaluleke kakhulu.

·Ukuncibilika: ukuncibilika kweziqandisi ezihlukene kanye nowoyela wesiqandisi kuhlukile, okungahle kuhlukaniswe izigaba ezintathu: eyodwa ayincibiliki, enye ayincibiliki, kanti enye iphakathi kwalezi ezimbili ezingenhla.
·Indawo yokuguquguquka: izinga lokushisa lapho uwoyela oyisiqandisi uqala ukuthela upharafini (uwoyela uba yimfucumfucu) ubizwa ngokuthi yi-turbidity point.Uma isiqandisi sikhona, indawo yokuguquguquka yamafutha efriji izokwehla.

Isizathu esiyinhloko sokuwohloka kwamafutha esiqandisini
·Ukuxuba amanzi: ngenxa yokungena komoya ohlelweni lwesiqandisi, amanzi asemoyeni axutshwa namafutha omshini wesiqandisi ngemva kokuthintana.Amanzi angaphansi kwesiqandisi aphezulu, futhi angaxuba amanzi kuwoyela wesiqandisi.Lapho amanzi exutshwa phakathi amafutha esiqandisini, i-viscosity iyancipha futhi insimbi iyagqwala.Kuhlelo lwesiqandisi se-freon, "ipulaki yeqhwa" nayo ibangelwa.
·I-oxidation: uma uwoyela oyisiqandisi usetshenziswa, lapho izinga lokushisa le-compressor liphezulu, kungase kubangele ukonakala kwe-oxidative, ikakhulukazi uwoyela esiqandisini onokungaqini kahle kwamakhemikhali, othambekele ekuwohlokeni.Ngokuhamba kwesikhathi, izinsalela zizokwakhiwa emafutheni esiqandisini, okubangela ukugcotshwa kwama-bearings nezinye izindawo ukuba ziwohloke.Ukuxutshwa kwama-organic fillers kanye nokungcola kwemishini emafutheni omshini wesiqandisi nakho kuzosheshisa ukuguga kwawo noma i-oxidation.
Ukuxuba uwoyela womshini wokuqandisa: lapho izinhlobo eziningana zamafutha omshini wokuqandisa zisetshenziswa ndawonye, ​​i-viscosity yamafutha omshini wokuqandisa izoncishiswa, futhi ngisho nokwakhiwa kwefilimu kawoyela kuyolimala.
Uma izinhlobo ezimbili zamafutha omshini wokuqandisa ziqukethe izithasiselo ezihlukene ze-anti-oxidation zezakhiwo ezihlukene, lapho zixutshwe ndawonye, ​​izinguquko zamakhemikhali zingase zenzeke futhi kube nemvula, okuzothinta ukugcotshwa kwe-compressor.Ngakho-ke, ukunakwa kufanele kukhokhwe lapho usebenzisa.

Kunokungcola emafutheni aqandisayo

Indlela yokukhetha uwoyela wefriji

·Khetha uwoyela wokugcoba ngokohlobo lokucindezela: i-compressor yomshini wesiqandisi inezinhlobo ezintathu zepiston, isikulufu kanye ne-centrifugal.Izinhlobo ezimbili zokuqala zamafutha okugcoba zithintana ngokuqondile nesiqandisi esicindezelwe, sicabangela ukusebenzisana phakathi kwamafutha okugcoba kanye ne-refrigerant.Amafutha e-Centrifugal asetshenziselwa ukugcoba i-rotor bear.Kungabuye kukhethwe ngokusho komthwalo kanye nesivinini.

·Khetha uwoyela wokugcoba ngokohlobo lwesiqandisi: amafutha okugcoba athintana ngqo nesiqandisi kufanele acabangele ukusebenzisana phakathi kwalokhu okubili.Isibonelo, isiqandisi esifana ne-freon singancibilika kuwoyela wamaminerali, ngakho-ke izinga le-viscosity lokugcoba okukhethiwe. uwoyela kufanele abe yizinga elilodwa eliphakeme kunalelo lesiqandisi esingancibiliki, ukuze kuvinjwe amafutha okugcoba ukuba angakwazi ukuqinisekiswa ngemva kokuhlanjululwa. umsebenzi wesistimu yesiqandisi.Iphuzu le-flocculation lamafutha omshini wefriji iyinkomba yekhwalithi yokuhlola ukuthi amafutha okugcoba ahlanganiswe nesiqandisi angakwazi yini ukukhipha i-wax crystal futhi avimbele uhlelo lwesiqandisi.
Khetha uwoyela wokugcoba ngokwezinga lokushisa elihwamukayo lesiqandisi: ngokuvamile, i-evaporator eyisiqandisi enokushisa okuhwamuka kancane kufanele ikhethe uwoyela wesiqandisi onephuzu eliphansi lokuqanda, ukuze ugweme uwoyela wokugcoba othwalwa isiqandisi ukuya ohlelweni lwesiqandisi ukuthi ungafinyeleli ku-throttle. i-valve ne-evaporator, ethinta ukusebenza kahle kwesiqandisi.
Indawo yokuqandisa yamafutha okugcoba asetshenziswa esiqandisini se-ammonia kufanele ibe ngaphansi kwezinga lokushisa lokuhwamuka.
Lapho i-freon isetshenziswa njengesiqandisi, indawo yokubanda yamafutha okugcoba ingase ibe phezulu kancane kunezinga lokushisa lokuhwamuka.
·Khetha uwoyela wokugcoba ngokwezimo zokusebenza zesiqandisi.

I-HERO-TECH isebenzisa izinga eliphezulu kuphelaamafutha esiqandisini.Zonke izingxenye zama-chillers ethu zisezingeni eliphezulu, okufanayo kuya kuwoyela oqandisiwe.Sidinga uwoyela omuhle wesiqandisi ukusekela ukusebenza okuzinzile nokude komshini.

Ngakho-ke, themba I-HERO-TECH, themba uchwepheshe wakho wesevisi yesiqandisi .