I-valve yokwandisa ukushisa, i-capillary tube, i-valve yokukhulisa kagesi, amadivayisi amathathu abalulekile okubhoboza

I-valve yokwandisa ukushisa, i-capillary tube, i-valve yokukhulisa kagesi, amadivayisi amathathu abalulekile okubhoboza

Indlela yokubopha iyingxenye ebalulekile yedivayisi yokuqandisa. Umsebenzi wayo ukunciphisa uketshezi olugcwele (noma uketshezi olupholile) ngaphansi kwengcindezi yokubumba ku-condenser noma ku-liquid receiver kuya kungcindezi yokuphuma kanye nokushisa kokuhwamuka ngemva kokubhoboza. Ngokusho koshintsho lomthwalo, ukugeleza kwe-refrigerant engena ku-evaporator kuyalungiswa. Amadivayisi okubopha avame ukusetshenziswa afaka amashubhu e-capillary, ama-valve okwandisa ukushisa, nama-valve okuntanta.

Uma inani loketshezi olunikezwa yi-throttling mechanism ku-evaporator likhulu kakhulu uma liqhathaniswa nomthwalo we-evaporator, ingxenye yoketshezi lwesiqandisi izongena ku-compressor kanye ne-gaseous refrigerant, okubangela ukucindezelwa okumanzi noma izingozi zesando soketshezi.

Ngokuphambene nalokho, uma inani loketshezi lincane kakhulu uma liqhathaniswa nomthwalo wokushisa we-evaporator, ingxenye yendawo yokushintshanisa ukushisa ye-evaporator ngeke ikwazi ukusebenza ngokugcwele, futhi ngisho nomfutho wokuhwamuka uzoncishiswa; futhi amandla okupholisa esistimu azoncishiswa, i-coefficient yokupholisa izoncishiswa, futhi izinga lokushisa lokukhipha i-compressor liyakhuphuka, okuthinta ukugcotshwa okuvamile kwe-compressor.

Uma uketshezi oluqandisayo ludlula emgodini omncane, ingxenye yokucindezela okungaguquki iguqulwa ibe ukucindezela okuguquguqukayo, futhi izinga lokugeleza landa kakhulu, libe ukugeleza okuguquguqukayo, uketshezi luyaphazamiseka, ukumelana kokungqubuzana kuyanda, futhi ukucindezela okungaguquki kwehla, ukuze uketshezi lukwazi ukufeza injongo yokunciphisa ukucindezela nokulawula ukugeleza.

Ukugoqa kungenye yezinqubo ezine eziyinhloko ezibalulekile emjikelezweni wokuqandisa wokucindezela.

Indlela yokugoqa inemisebenzi emibili:

Enye iwukuphotha nokunciphisa umfutho wefrijini elinomfutho ophezulu eliphuma ku-condenser liye kumfutho wokuhwamuka.

Okwesibili ukulungisa inani loketshezi lwesiqandisi olungena ku-evaporator ngokwezinguquko zomthwalo wesistimu.

1. I-valve yokwandisa ukushisa

I-valve yokwandisa ukushisa isetshenziswa kabanzi ohlelweni lokuqandisa lwe-Freon. Ngokusebenza kwendlela yokuzwa izinga lokushisa, ishintsha ngokuzenzakalelayo ngokushintsha kwezinga lokushisa kwe-refrigerant endaweni yokuphuma ye-evaporator ukuze kufezwe injongo yokulungisa inani loketshezi lwe-refrigerant.

Ama-valve amaningi okwandisa ukushisa abekwe ku-5 kuya ku-6°C ngaphambi kokuphuma efektri. Isakhiwo se-valve siqinisekisa ukuthi lapho ukushisa okukhulu kukhushulwa ngo-2°C, i-valve ivuleka ngokuphelele. Uma ukushisa okukhulu kungama-2°C, i-valve yokwandisa ivaliwe. Intwasahlobo yokulungisa yokulawula ukushisa okukhulu, ububanzi bokulungisa bungama-3～6℃.

Ngokuvamile, uma izinga lokushisa eliphezulu libekwa yi-valve yokwandisa ukushisa, kulapho amandla okumunca ukushisa e-evaporator ehla khona, ngoba ukwandisa izinga lokushisa eliphezulu kuzothatha ingxenye enkulu yendawo yokudlulisa ukushisa emsileni we-evaporator, ukuze umusi ogcwele ufudumale kakhulu lapha. Uthatha ingxenye yendawo yokudlulisa ukushisa ye-evaporator, ukuze indawo yokufudumeza kwe-refrigerant kanye nokumunca ukushisa kuncishiswe kakhulu, okungukuthi, ubuso be-evaporator abusetshenziswa ngokugcwele.

Kodwa-ke, uma izinga lokushisa okuphezulu liphansi kakhulu, uketshezi lwesiqandisi lungangeniswa ku-compressor, okuholela esimweni esingathandeki sesando soketshezi. Ngakho-ke, ukulawulwa kokushisa okuphezulu kufanele kube okufanele ukuqinisekisa ukuthi isiqandisi esanele singena ku-evaporator ngenkathi kuvinjelwa isiqandisi soketshezi ukuthi singangeni ku-compressor.

I-valve yokwandisa ukushisa yakhiwe kakhulu umzimba we-valve, iphakheji yokuzwa ukushisa kanye ne-capillary tube. Kunezinhlobo ezimbili ze-valve yokwandisa ukushisa: uhlobo lwebhalansi yangaphakathi kanye nohlobo lwebhalansi yangaphandle ngokwezindlela ezahlukene zebhalansi ye-diaphragm.

I-valve yokwandisa ukushisa elinganisiwe ngaphakathi

I-valve yokwandisa ukushisa elinganisiwe ngaphakathi yakhiwe umzimba we-valve, induku yokusunduza, isihlalo se-valve, inaliti ye-valve, intwasahlobo, induku yokulawula, ibhalbhu yokuzwa izinga lokushisa, ithubhu yokuxhuma, i-diaphragm yokuzwa nezinye izingxenye.

I-valve yokwandisa ukushisa elinganisiwe ngaphandle

Umehluko phakathi kwevalvu yokwandisa ukushisa yohlobo lwebhalansi yangaphandle kanye nohlobo lwebhalansi yangaphakathi esakhiweni nasekufakweni ukuthi isikhala esingaphansi kwe-diaphragm yevalvu yebhalansi yangaphandle asixhunyiwe ne-outlet yevalvu, kodwa kusetshenziswa ipayipi elincane lebhalansi yobubanzi ukuxhuma ne-outlet ye-evaporator. Ngale ndlela, ingcindezi yesiqandisi esebenza ngaphansi kwe-diaphragm akuyona i-Po ekungeneni kwe-evaporator ngemva kokubhoboza, kodwa ingcindezi i-Pc ekuphumeni kwe-evaporator. Lapho amandla e-diaphragm elinganisiwe, yi-Pg=Pc+Pw. Izinga lokuvula levalvu alithintwa ukumelana nokugeleza kwekhoyili ye-evaporator, ngaleyo ndlela kunqotshwe ukushiyeka kohlobo lwebhalansi yangaphakathi. Uhlobo lwebhalansi yangaphandle lusetshenziswa kakhulu ezimweni lapho ukumelana kwekhoyili ye-evaporator kukhulu khona.

Ngokuvamile, izinga lokushisa eliphakeme lomusi lapho i-valve yokwandisa ivaliwe libizwa ngokuthi izinga lokushisa eliphakeme lomusi, kanti izinga lokushisa eliphakeme lomusi nalo lilingana nezinga lokushisa eliphakeme lomusi lapho imbobo ye-valve iqala ukuvula. I-superheat yokuvala ihlobene nokulayisha kwangaphambili kwentwasahlobo, okungalungiswa yi-lever yokulungisa.

Ukushisa okukhulu lapho intwasahlobo ilungiswa endaweni ekhululekile kubizwa ngokuthi ukushisa okuncane okuvaliwe; ngokuphambene nalokho, ukushisa okukhulu lapho intwasahlobo ilungiswa endaweni eqinile kubizwa ngokuthi ukushisa okukhulu okuvaliwe. Ngokuvamile, izinga eliphansi kakhulu lokushisa okukhulu elivaliwe le-valve yokwandisa alidluli ku-2℃, kanti izinga eliphezulu kakhulu lokushisa okukhulu elivaliwe alingaphansi kuka-8℃.

Kwivalvu yokwandisa ukushisa yebhalansi yangaphakathi, ingcindezi yokuhwamuka isebenza ngaphansi kwe-diaphragm. Uma ukumelana kwe-evaporator kukhulu kakhulu, kuzoba nokulahlekelwa okukhulu kokumelana nokugeleza lapho i-refrigerant igeleza kwamanye ama-evaporator, okuzothinta kakhulu ivalvu yokwandisa ukushisa. Ukusebenza kokusebenza kwe-evaporator kuyanda, okuholela ekwandeni kwezinga lokushisa okukhulu endaweni yokukhipha i-evaporator, kanye nokusetshenziswa okungafanele kwendawo yokudlulisa ukushisa ye-evaporator.

Kuma-valve okwandisa ukushisa alinganiswe ngaphandle, ingcindezi esebenza ngaphansi kwe-diaphragm ingcindezi yokukhipha ye-evaporator, hhayi ingcindezi yokuhwamuka, futhi isimo siyathuthuka.

2. I-Capillary

I-capillary iyithuluzi elilula kakhulu lokubhoboza. I-capillary iyipayipi lethusi elincane kakhulu elinobude obucacisiwe, futhi ububanzi balo bangaphakathi ngokuvamile bungu-0.5 kuya ku-2 mm.

Izici ze-capillary njengethuluzi lokubhoboza

(1) I-capillary idonswa epayipini lethusi elibomvu, okulula ukulikhiqiza futhi elishibhile;

(2) Azikho izingxenye ezihambayo, futhi akulula ukubangela ukwehluleka nokuvuza;

(3) Inezici zokuzikhokhela,

(4) Ngemva kokuba i-compressor yokuqandisa isiyekile ukusebenza, ingcindezi ohlangothini olunomfutho ophezulu kanye nengcindezi ohlangothini olunomfutho ophansi ohlelweni lokuqandisa ingalinganiswa ngokushesha. Uma iqala ukusebenza futhi, injini ye-compressor yokuqandisa iyaqala.

3. I-valve yokwandisa kagesi

I-valve yokwandisa kagesi iwuhlobo lwesivinini, olusetshenziswa ku-air conditioner elawulwa ngobuhlakani. Izinzuzo ze-valve yokukhulisa kagesi yilezi: ububanzi obukhulu bokulungisa ukugeleza; ukunemba okuphezulu kokulawula; ifanele ukulawula okuhlakaniphile; ifanele ukushintsha okusheshayo ekugelezeni kwe-refrigerant okusebenza kahle kakhulu.

Izinzuzo zama-valve okwandisa kagesi

Ububanzi obukhulu bokulungisa ukugeleza;

Ukunemba okuphezulu kokulawula;

Ifanele ukulawula okuhlakaniphile;

Ingasetshenziswa ekushintsheni okusheshayo kokugeleza kwe-refrigerant ngokusebenza kahle kakhulu.

Ukuvulwa kwevalvu yokwandisa kagesi kungashintshwa ukuze kuhambisane nesivinini secompressor, ukuze inani lefriji elilethwa yicompressor lifane nenani loketshezi olunikezwa yivalvu, ukuze umthamo we-evaporator ukhuliswe futhi kufezwe ukulawula okuhle kakhulu kohlelo lokupholisa umoya kanye nolwefriji.

Ukusetshenziswa kwe-valve yokwandisa kagesi kungathuthukisa ukusebenza kahle kwamandla kwe-compressor ye-inverter, kulungiswe ngokushesha izinga lokushisa, futhi kuthuthukise isilinganiso sokusebenza kahle kwamandla kwesizini sohlelo. Kuma-air conditioner e-inverter anamandla aphezulu, ama-valve okukhulisa kagesi kumele asetshenziswe njengezingxenye zokugoqa.

Isakhiwo se-valve yokwandisa kagesi siqukethe izingxenye ezintathu: ukutholwa, ukulawula kanye nokusebenza. Ngokwendlela yokushayela, ingahlukaniswa ngohlobo lwe-electromagnetic kanye nohlobo lukagesi. Uhlobo lukagesi luhlukaniswe futhi ngohlobo olusebenza ngqo kanye nohlobo lokuncishiswa kwejubane. I-stepping motor enenaliti ye-valve uhlobo olusebenza ngqo, kanti i-stepping motor enenaliti ye-valve ngokusebenzisa i-gear set reducer uhlobo lokuncishiswa kwejubane.