Okokuqala, ukuhlaziywa kokwehluleka kanye nokwelashwa kwezinga lokushisa lokugcina elibandayo akwehli
Izinga lokushisa lesiqandisi liphezulu kakhulu. Ngemva kokuhlola, izinga lokushisa lama-warehouse amabili laliyi--4°C kuphela kuya ku-0°C, futhi ama-valve e-solenoid okuhambisa uketshezi ema-warehouse amabili avulwa. I-compressor yaqala njalo, kodwa isimo asizange sithuthuke lapho kushintshelwa kwenye i-compressor, kodwa kwakukhona iqhwa elijiyile epayipini lomoya elibuyayo. Ngemva kokungena ema-warehouse amabili, kwatholakala ukuthi iqhwa elijiyile lalakhiwe kuma-coil ahwamukayo, futhi isimo sathuthuka ngemva kokuncibilika. Ngalesi sikhathi, isikhathi sokuqala kanye nezinga lokushisa lokugcina le-compressor liyancipha, kodwa alilungile. Bese uhlola imikhawulo ephezulu nephansi yesenzo sokulawula umfutho ophansi, futhi uthole ukuthi ukulungiswa okungalungile kungu-0.11-0.15npa, okungukuthi, yeka i-compressor lapho ingcindezi ingu-0.11mpa, bese uqala i-compressor lapho ingcindezi ingu-0.15pa. Ububanzi bokushisa bokuhwamuka obuhambisanayo bungaba ngu--20°C kuya ku-18°C. Ngokusobala, lokhu kulungiselelwa kuphezulu kakhulu futhi umehluko we-amplitude mncane kakhulu. Ngakho-ke, lungisa imikhawulo ephezulu nephansi yesilawuli sokucindezela okuphansi. Inani elilungisiwe lingu-0.05-0.12mpa, kanti izinga lokushisa lokuhwamuka elihambisanayo licishe libe ngu--20°C-18°C. Ngemuva kwalokho, qala kabusha uhlelo bese uqalisa kabusha ukusebenza okuvamile.
2. Izizathu eziningana zokuqalisa njalo ama-compressor okuqandisa
Ama-compressor asebenzayo aqaliswa futhi amiswe ama-relay aphezulu naphansi, kodwa ngemva kokukhubeka kwama-relay amaningi aphezulu, kufanele kwenziwe ukusetha kabusha ngesandla ukuze kuqalwe kabusha i-compressor. Ngakho-ke, ukuqala nokuyeka okuvamile kwe-compressor ngokuvamile akubangelwa yi-relay ephezulu, kodwa ikakhulukazi yi-relay ephansi:
1. Umehluko wokushisa phakathi kwe-amplitude ye-relay kanye ne-relay ene-voltage ephansi mncane kakhulu, noma umehluko wokushisa phakathi kwe-amplitude ye-relay kanye ne-relay ene-voltage ephansi mncane kakhulu;
2. Ivalvu yokumunca neyokukhipha noma ivalvu yokuphepha yecompressor iyavuza, ngakho-ke ngemva kokuvala, igesi enomfutho ophezulu izovuza ohlelweni olunomfutho ophansi, futhi ingcindezi izokhuphuka ngokushesha ukuze iqalise icompressor. Ngemva kokuqala, ingcindezi yesistimu enomfutho ophansi yehla ngokushesha, i-relay enomfutho ophansi iyasebenza, futhi icompressor iyama;
3. Ivalvu yokubuyisela uwoyela ezenzakalelayo yesihlukanisi samafutha okugcoba iyavuza;
4. Ipulaki yeqhwa le-valve yokwandisa.
3. I-compressor isebenza isikhathi eside kakhulu
Imbangela eyinhloko yesikhathi eside sokusebenza kwe-compressor ukunganeli kokupholisa kweyunithi noma umthwalo wokushisa owedlulele wesitoreji esibandayo, okuhlanganisa kakhulu:
1. I-evaporator ineqhwa eliningi kakhulu noma isitoreji esiningi kakhulu samafutha;
2. Ukugeleza kwe-refrigerant ohlelweni akwanele, noma ipayipi le-refrigerant eliwuketshezi alibushelelezi ngokwanele;
3. Ngenxa yokuvuza kwamapuleti e-intake kanye ne-exhaust valve, ukuvuza okukhulu kwendandatho ye-piston noma ukwehluleka kwe-compressor ukwandisa umthwalo, ukulethwa kwegesi kwangempela kwe-compressor kuncishiswe kakhulu;
4. Ingqimba yokuvikela ukushisa yesitoreji esibandayo yonakele, umnyango awuvalwanga kahle noma inani elikhulu lezinto ezishisayo liyakhululwa, okuholela ekushiseni ngokweqile kwesitoreji esibandayo;
5. I-temperature relay, i-low voltage relay noma i-liquid supply solenoid valve kanye nezinye izingxenye zokulawula zinephutha, okwenza izinga lokushisa lokugcina lifinyelele umkhawulo ophansi. Kodwa i-compressor ayikwazi ukuma ngesikhathi.
4. Ngemva kokuyeka kwe-compressor, ukucindezela okuphezulu nokuphansi kulinganiswa ngokushesha
Lokhu kubangelwa kakhulu ukuvuza noma ukuphuka okukhulu kwamapuleti e-suction ne-exhaust valve, ukuqhekeka kwe-gasket phakathi kokucindezela okuphezulu nokucindezela okuphansi kwesilinda, kanye nokungena okusheshayo kwegesi enomfutho ophezulu ekamelweni lokumunca ngemva kokuvala.
5. I-compressor ayikwazi ukulayishwa noma ukuthululwa ngendlela evamile
Ngesistimu yokulawula amandla elawulwa yingcindezi kawoyela, isizathu esiyinhloko ukuthi: ingcindezi kawoyela wokugcoba iphansi kakhulu. (Ngokuvamile ibangelwa ukuvuleka ngokweqile kwamabhere kanye nokuvuleka kwephampu), ingaxazululwa ngokuqinisa ivalvu yokulawula ingcindezi kawoyela; iphistoni yesilinda esilayishayo ivuza uwoyela ngokungathi sína, futhi isekethe kawoyela ivinjiwe; isilinda kawoyela sinamathele ku-piston noma kwezinye izindlela; ivalvu ye-solenoid ayisebenzi kahle, Noma i-iron core ine-magnetism eseleyo.
6. Ukwehluleka kwesistimu yesiqandisi
1. Ukuqandisa i-frosting kukhoyili ye-evaporator: ukuqandisa i-frosting kukhoyili ye-evaporator akufanele kudlule u-3mm. Uma ukuqandisa kukhulu kakhulu, ukumelana nokushisa kuzokwanda, okuholela ekuhlukeni kokushisa okuthile phakathi kwe-evaporator nendawo yokugcina ebandayo. I-refrigerant ayikwazi ukumunca ukushisa okwanele ukuze iphele ku-evaporator. Inani elikhulu le-refrigerant limunca ukushisa epayipini lokubuyisa bese liyaphela, okwandisa ukuqandisa kwepayipi lokubuyisa; ngaphezu kwalokho, ukushisa okukhulu okuzwakala yi-valve yokwandisa kuncane kakhulu noma ngisho no-zero, okubangela ukuthi ivale noma ivale, futhi i-compressor izoma ngengcindezi ephansi maduze. Kodwa-ke, i-solenoid valve ayivaliwe, futhi kusekhona umthwalo othile wokushisa efrijini. Ngemva kokuba ingcindezi ye-evaporator ikhuphuke, i-compressor iqala futhi, okubangela ukuqala njalo. Uma iqhwa lijiyile ku-evaporator, lesi simo sizoba sibi kakhulu. Eqinisweni, iqhwa elisezingxoxweni ze-evaporator zezindawo zokugcina ezibandayo ezisezingeni eliphansi kulesi simiso lijiyile kakhulu, lifinyelela ku-1-2cm, okuthinta kakhulu ukudluliselwa kokushisa futhi akukwazi ukunciphisa izinga lokushisa lokugcina. Ngemva kokuncibilikisa, sebenzisa uhlelo futhi, futhi izinga lokushisa lezindawo zokugcina ezimbili zokugcina ezisezingeni eliphansi lingehla liye ku-6-5°C.
2. Inani lokusetha lesilawuli sokucindezela okuphezulu nokuphansi alilungile: i-refrigerant esetshenziswa emishinini yokuqandisa ingu-R22, kanti ingcindezi yokusika i-voltage ephezulu (umkhawulo ophezulu) ikhethwa kakhulu njengokucindezela kwe-gauge okungu-1.7-1.9mpa. Ingcindezi (umkhawulo ophansi) we-relay ye-low-voltage ingaba ingcindezi yokugcwala kwe-refrigerant ehambisana nokushisa komklamo wokuhwamuka -5°C (umehluko wokushisa kokudlulisa ukushisa), kodwa ngokuvamile kungabi ngaphansi kokucindezela kwe-gauge okungu-0.01 MPa. Umehluko wobubanzi bokulungisa beswishi ye-low-voltage ngokuvamile ngu-0.1-0.2MPa. Ngezinye izikhathi isikali senani lokusetha lokulawula ingcindezi asinembile, futhi inani langempela lesenzo lingaphansi kwenani elilinganisiwe ngesikhathi sokulungisa amaphutha. Lapho uhlola isilawuli se-low-pressure, vala kancane i-valve yokuvala ukumunca ye-compressor, bese unake inani lokubonisa le-suction pressure gauge. Amanani okubonisa lapho i-compressor imiswa futhi iqala kabusha ayimingcele ephezulu nephansi yesilawuli se-low pressure gauge. Ukuze uhlole isilawuli sokucindezela okuphezulu, vala kancane ivalvu yokumisa ukukhipha ye-compressor, bese ufunda ukufundwa kwegeyiji yokucindezela ukukhipha lapho i-compressor ima, okungukuthi, ingcindezi yokusika yokucindezela okuphezulu. Qinisekisa ukuthembeka kwegeyiji yokucindezela ngaphambi kokuhlolwa; ukuqinisekisa ukuphepha, ivalvu yokukhipha akufanele ivalwe ngokuphelele.
3. Isiqandisi esinganele ohlelweni: Kudivayisi enethangi lokugcina uketshezi, ngenxa yomsebenzi wokulungisa ithangi lokugcina uketshezi, ngaphandle uma kungenxa yokuntuleka okukhulu kwesiqandisi, uketshezi olunikezwa yithangi lokugcina uketshezi alukwazi ukuqhubeka, okuzothinta ukusebenza okuvamile kwedivayisi. “Isiqandisi Esiphansi”, okungukuthi izinga eliphansi loketshezi, ngeke libe nomthelela omkhulu ekusebenzeni kwesistimu. Kodwa-ke, kudivayisi engenalo ithangi lokugcina uketshezi, njengoba inani lesiqandisi ohlelweni linquma ngqo izinga loketshezi lwesiqandisi ku-condenser, ngaleyo ndlela kuthinte ukusebenza kwe-condenser kanye nezinga lokupholisa elingaphansi kwesiqandisi soketshezi, lapho inani lesiqandisi ohlelweni Uma linganele, kuzoholela ekushintsheni okulandelayo ezimweni zokusebenza zemishini:
(1) I-compressor iyaqhubeka nokusebenza, kodwa izinga lokushisa lokugcina alikwazi ukwehla;
(2) Umfutho wokukhipha umoya we-compressor uyancipha;
(3) Umfutho wokumunca we-compressor uphansi, ukushisa okukhulu kokumunca kuyanda, iqhwa elingemuva kwe-evaporator liyancibilika, futhi ikhanda lesilinda se-compressor liyashisa;
(4) Inani elikhulu lamabhamuza lingabonakala esikhungweni sokugeleza koketshezi sesikhombisi sokuhlinzeka ngoketshezi;
(5) Izinga loketshezi le-condenser ngokusobala liphansi.
Uma ukuvulwa kwevalvu yokwandisa ukushisa kulungisiwe kuncane kakhulu, ingcindezi yokumunca izoncipha, i-evaporator izobe iqandisiwe futhi incibilike, futhi ipayipi lokumunca lizobe liqandisiwe futhi lincibilike. Ngakho-ke, lapho izinga lesiqandisi lingenakubonwa ngokunembile. Ukuze kuhlulelwe ukuthi inani lesiqandisi ohlelweni alanelanga yini, izindlela ezilandelayo zingasetshenziswa:
Yeka ukusebenzisa ivalvu yokwandisa ukushisa, vula bese ulungisa ivalvu yokwandisa ngesandla ngendlela efanele, bese ubheka ukusebenza kwesistimu ukuze ubone ukuthi ingabuyela esimweni sayo esijwayelekile yini. Uma ingabuyela esimweni sayo esijwayelekile, kusho ukuthi ivalvu yokwandisa ukushisa ayilungiswanga kahle, ngaphandle kwalokho kukhona ukuntuleka kwe-refrigerant ohlelweni. Imbangela yokuvuza yi-refrigerant enganele ohlelweni (uma kungesona ishaja elanele). Ngakho-ke, ngemva kokutholakala ukuthi i-refrigerant yesistimu ayanele, ukuvuza kufanele kutholakale kuqala, bese i-refrigerant kufanele yengezwe ngemva kokuba ukuvuza sekususiwe.
Isikhathi sokuthunyelwe: Mashi-17-2023
