Ivalvu yokwandisa ubushushu, ityhubhu ye-capillary, ivalvu yokwandisa ye-elektroniki, izixhobo ezintathu ezibalulekileyo zokuthomalalisa

Ivalvu yokwandisa ubushushu, ityhubhu ye-capillary, ivalvu yokwandisa ye-elektroniki, izixhobo ezintathu ezibalulekileyo zokuthomalalisa

Indlela yokuqhobosha yenye yezona zinto zibalulekileyo kwisixhobo sokuqhobosha. Umsebenzi wayo kukunciphisa ulwelo olugcweleyo (okanye ulwelo olupholisiweyo) phantsi koxinzelelo lokuqhobosha kwi-condenser okanye kwi-liquid receiver ukuya kuxinzelelo lokuqhobosha kunye nobushushu bokuqhobosha emva kokuqhobosha. Ngokwenguquko yomthwalo, ukuhamba kwe-refrigerant engena kwi-evaporator kuyalungiswa. Izixhobo zokuqhobosha ezisetyenziswa rhoqo ziquka iityhubhu ze-capillary, ii-thermal expansion valves, kunye nee-float valves.

Ukuba ubungakanani bolwelo olunikezelwa yi-throttling mechanism kwi-evaporator bukhulu kakhulu xa kuthelekiswa nomthwalo we-evaporator, inxalenye yolwelo lwe-refrigerant iya kungena kwi-compressor kunye ne-gaseous refrigerant, nto leyo ebangela ucinezelo olumanzi okanye iingozi ze-hammer yolwelo.

Ngokwahlukileyo koko, ukuba ubungakanani bolwelo buncinci kakhulu xa buthelekiswa nomthwalo wobushushu we-evaporator, inxalenye yendawo yokutshintshiselana kobushushu ye-evaporator ayizukukwazi ukusebenza ngokupheleleyo, kwaye noxinzelelo lokuphuma komphunga luya kuncitshiswa; kwaye amandla okupholisa enkqubo aya kuncitshiswa, i-coefficient yokupholisa iya kuncitshiswa, kwaye ubushushu bokukhupha i-compressor buyanyuka, nto leyo echaphazela ukuthambisa okuqhelekileyo kwe-compressor.

Xa ulwelo lwefriji ludlula emngxunyeni omncinci, inxalenye yoxinzelelo oluzinzileyo iguqulwa ibe luxinzelelo oluguquguqukayo, kwaye izinga lokuhamba liyanda kakhulu, libe ngumsinga oguquguqukayo, ulwelo luyaphazamiseka, ukumelana nokungqubana kuyanda, kwaye uxinzelelo oluzinzileyo luyancipha, ukuze ulwelo lukwazi ukufezekisa injongo yokunciphisa uxinzelelo nokulawula ukuhamba.

Ukuqhobosha yenye yeenkqubo ezine eziphambili ezifunekayo kumjikelo wokuqhobosha ocinezelweyo.

Indlela yokuqhobosha inemisebenzi emibini:

Enye kukunciphisa uxinzelelo lwe-fluid-pressure refrigerant ephuma kwi-condenser ukuya kuxinzelelo lwe-evaporation.

Okwesibini kukulungisa ubungakanani bolwelo olufakwa kwifriji olungena kwi-evaporator ngokweenguqu zomthwalo wenkqubo.

1. Ivalvu yokwandisa ubushushu

Ivalvu yokwandisa ubushushu isetyenziswa kakhulu kwinkqubo yokufriji yeFreon. Ngenxa yomsebenzi wendlela yokuva ubushushu, itshintsha ngokuzenzekelayo ngotshintsho lobushushu lwefriji kwindawo yokuphuma ye-evaporator ukuze kufezekiswe injongo yokulungisa ubungakanani bolwelo lwefriji.

Uninzi lweevalvu zokwandisa ubushushu zibekwe kwi-5 ukuya kwi-6°C ngaphambi kokuba ziphume kwifektri. Ulwakhiwo lwevalvu luqinisekisa ukuba xa ubushushu obuphezulu bunyuswa nge-2°C enye, ivalvu ikwindawo evulekileyo ngokupheleleyo. Xa ubushushu obuphezulu bumalunga ne-2°C, ivalvu yokwandisa iyavalwa. Intwasahlobo yokulungelelanisa yokulawula ubushushu obuphezulu, uluhlu lohlengahlengiso yi-3～6℃.

Ngokubanzi, xa iqondo lobushushu obuphezulu liphezulu elibekwe yivalvu yokwandisa ubushushu, kokukhona amandla okufunxa ubushushu e-evaporator ehla, kuba ukonyusa iqondo lobushushu obuphezulu kuya kuthatha inxalenye enkulu yomphezulu wokudlulisa ubushushu emsileni we-evaporator, ukuze umphunga ogcweleyo ufudumale apha. Uhlala inxalenye yendawo yokudlulisa ubushushu ye-evaporator, ukuze indawo yokufuma kwefriji kunye nokufunxa ubushushu inciphe, oko kukuthi, umphezulu we-evaporator awusetyenziswa ngokupheleleyo.

Nangona kunjalo, ukuba iqondo lobushushu obuphezulu liphantsi kakhulu, ulwelo lwefriji lunokungeniswa kwi-compressor, nto leyo ebangela ukuba ihamile yolwelo ingabi ntle. Ke ngoko, ulawulo lwe-superheat kufuneka lube lolufanelekileyo ukuqinisekisa ukuba i-refrigerant eyaneleyo ingena kwi-evaporator ngelixa ithintela i-refrigerant yolwelo ukuba ingangeni kwi-compressor.

Ivalvu yokwandisa ubushushu yenziwe kakhulu ngumzimba wevalvu, iphakheji yokuva ubushushu kunye netyhubhu ye-capillary. Kukho iintlobo ezimbini zevalvu yokwandisa ubushushu: uhlobo lwebhalansi yangaphakathi kunye nohlobo lwebhalansi yangaphandle ngokweendlela ezahlukeneyo zebhalansi ye-diaphragm.

Ivalvu yokwandisa ubushushu elinganisiweyo ngaphakathi

Ivalvu yokwandisa ubushushu elungelelanisiweyo ngaphakathi yenziwe ngumzimba wevalvu, intonga yokutyhala, isihlalo sevalvu, inaliti yevalvu, intwasahlobo, intonga yokulawula, ibhalbhu yokuva ubushushu, ityhubhu yokudibanisa, idiaphragm yokuva kunye nezinye izinto.

Ivalvu yokwandisa ubushushu elinganisiweyo ngaphandle

Umahluko phakathi kwevalvu yokwandisa ubushushu yohlobo lwebhalansi yangaphandle kunye nohlobo lwebhalansi yangaphakathi kwisakhiwo kunye nofakelo kukuba indawo engaphantsi kwe-diaphragm ye-valve yebhalansi yangaphandle ayidibani ne-outlet yevalvu, kodwa kusetyenziswa umbhobho omncinci wokulinganisela ububanzi ukunxibelelana ne-outlet ye-evaporator. Ngale ndlela, uxinzelelo lwefriji olusebenza ngaphantsi kwe-diaphragm alukho kwi-Po yokungena kwe-evaporator emva kokubhoboza, kodwa luxinzelelo lwe-Pc kwindawo yokukhupha ye-evaporator. Xa amandla e-diaphragm elinganisiwe, yi-Pg=Pc+Pw. Iqondo lokuvula le-valve alichaphazeleki kukumelana nokuhamba kwamanzi kwi-coil ye-evaporator, ngaloo ndlela yoyisa ukusilela kohlobo lwebhalansi yangaphakathi. Uhlobo lwebhalansi yangaphandle lusetyenziswa kakhulu kwiimeko apho ukumelana kwe-coil ye-evaporator kukhulu.

Ngokwesiqhelo, i-steam superheat degree xa i-expansion valve ivaliwe ibizwa ngokuba yi-closed superheat degree, kwaye i-closed superheat degree ikwalingana ne-open superheat degree xa umngxuma we-valve uqala ukuvula. I-closing superheat inxulumene nomthwalo wangaphambili wentwasahlobo, onokulungiswa yi-adjustment lever.

Ubushushu obukhulu xa intwasahlobo ihlengahlengiswa kwindawo ekhululekileyo bubizwa ngokuba yi-minimum closed superheat; ngokuchaseneyo, ubushushu obukhulu xa intwasahlobo ihlengahlengiswa kwi-tightest bubizwa ngokuba yi-maximum closed superheat. Ngokubanzi, ubuncinci obuvaliweyo be-superheat ye-expansion valve abudluli kwi-2℃, kwaye ubuncinci obuvaliweyo be-superheat bungaphantsi kwe-8℃.

Kwivalvu yokwandisa ubushushu bebhalansi yangaphakathi, uxinzelelo lomphunga lusebenza phantsi kwe-diaphragm. Ukuba ukumelana kwe-evaporator kukhulu kakhulu, kuya kubakho ilahleko enkulu yokumelana nokuhamba kwamanzi xa i-refrigerant ingena kwezinye ii-evaporators, nto leyo eya kuyichaphazela kakhulu ivalvu yokwandisa ubushushu. Ukusebenza kakuhle kwe-evaporator kuyanda, nto leyo ekhokelela ekwandeni kweqondo lobushushu obuphezulu kwindawo yokuphuma kwe-evaporator, kunye nokusetyenziswa okungafanelekanga kwendawo yokudlulisa ubushushu ye-evaporator.

Kwiivalvu zokwandisa ubushushu ezilinganisiweyo ngaphandle, uxinzelelo olusebenza phantsi kwe-diaphragm luxinzelelo lokukhupha lwe-evaporator, hayi uxinzelelo lokukhupha umphunga, kwaye imeko iyaphucuka.

2. I-Capillary

I-capillary sesona sixhobo silula sokuthomalalisa. I-capillary yityhubhu yobhedu ebhityileyo kakhulu enobude obuchaziweyo, kwaye ububanzi bayo bangaphakathi buhlala buyi-0.5 ukuya kwi-2 mm.

Iimpawu ze-capillary njengesixhobo sokuthomalalisa

(1) I-capillary itsalwa kwityhubhu yobhedu obomvu, elula ukuyenza kwaye ingabizi kakhulu;

(2) Akukho zinto zishukumayo, kwaye akulula ukubangela ukungaphumeleli nokuvuza;

(3) Ineempawu zokuzihlawulela,

(4) Emva kokuba i-compressor yefriji iyekile ukusebenza, uxinzelelo olukwicala loxinzelelo oluphezulu kunye noxinzelelo olukwicala loxinzelelo oluphantsi kwinkqubo yefriji lunokulungelelaniswa ngokukhawuleza. Xa iqala ukusebenza kwakhona, i-motor ye-compressor yefriji iyaqala.

3. Ivalvu yokwandisa ye-elektroniki

Ivalvu yokwandisa ye-elektroniki luhlobo lwesantya, olusetyenziswa kwi-inverter air conditioner elawulwa ngobuchule. Iingenelo zevalvu yokwandisa ye-elektroniki zezi: uluhlu olukhulu lohlengahlengiso lokuhamba; ukuchaneka kokulawula okuphezulu; ifanelekile kulawulo olukrelekrele; ifanelekile kutshintsho olukhawulezileyo lokuhamba kwefriji esebenza kakuhle kakhulu.

Iingenelo zeeValve zoKwandisa ze-elektroniki

Uluhlu olukhulu lohlengahlengiso lokuhamba kwamanzi;

Ukuchaneka okuphezulu kokulawula;

Ifanelekile kulawulo olukrelekrele;

Ingasetyenziswa kwiinguqu ezikhawulezayo zokuhamba kwefriji ngokusebenza kakuhle.

Ukuvulwa kwevalvu yokwandisa ye-elektroniki kunokulungiswa ngokwesantya secompressor, ukuze ubungakanani befriji ethunyelwa yicompressor buhambelane nobungakanani bolwelo olunikezelwa yivalvu, ukuze umthamo we-evaporator ube mkhulu kwaye ulawulo olufanelekileyo lwenkqubo yomoya opholileyo kunye nefriji lufezekiswe.

Ukusetyenziswa kwevalvu yokwandisa ye-elektroniki kunokuphucula ukusebenza kakuhle kwamandla kwe-inverter compressor, kufezekise uhlengahlengiso olukhawulezileyo lobushushu, kwaye kuphuculwe umlinganiselo wokusebenza kakuhle kwamandla enkqubo ngexesha lexesha. Kwii-air conditioners ze-inverter ezinamandla aphezulu, iivalvu zokwandisa ze-elektroniki kufuneka zisetyenziswe njengezinto ezithintela ukuxinana.

Ulwakhiwo lwevalvu yokwandisa ye-elektroniki lunamacandelo amathathu: ukufumanisa, ukulawula kunye nokusebenza. Ngokwendlela yokuqhuba, inokwahlulwahlulwa ngohlobo lwe-electromagnetic kunye nohlobo lombane. Uhlobo lombane lwahlulwe ngakumbi ngohlobo olusebenza ngqo kunye nohlobo lokudambisa. Imoto yokunyathela enenaliti yevalvu luhlobo olusebenza ngqo, kwaye imoto yokunyathela enenaliti yevalvu ngokusebenzisa iseti yegiya yokunciphisa isantya luhlobo lokudambisa isantya.