Yini i-refrigerant, uma ikhona ngokweqile, ebanga ukwehliswa kwe-discharge superheat?

Ngokungafani nokubuyisa okunganele, lapho uhlelo lugcwele kakhulu noma idivayisi yokudonsa ihlinzeka ngoketshezi oluningi, uhlelo lokubuyisa olunguketshezi ku-evaporator alukwazi ukubuyisa ngokuphelele. Inani elikhulu loketshezi olungabuyisi libamba isikhala sokushintshanisa ukushisa ku-evaporator, okunganciphisi nje kuphela ukusebenza kahle kokushintshanisa ukushisa kodwa futhi kungangena emgqeni wokudonsa kanye nomoya.

Lezi zinhlelo zokubuyisa ezisele ziqhubeka nokubuyisa emgqeni wokudonsa, zithatha ukushisa odongeni lomgqomo kanye nendawo ezungezile, ngaleyo ndlela zipholise umoya wokubuyisa emgqeni wokudonsa. Ngenxa yalokho, izinga lokushisa legesi elingena ku-compressor liphansi kunokujwayelekile, i-superheat yokudonsa incipha kakhulu, futhi kungase kwenzeke "isifo esimanzi" (okungukuthi, igesi yokubuyisa enama-droplets oketshezi).

Ngenxa yokushisa okuphansi kokudonsa, noma ngemuva kokucindezelwa, ukushisa kokukhishwa akukwazi ukufinyelela izinga elivamile, ngakho-ke ukushisa okukhishiwe kwe-superheat kuyancipha ngokufanele. Ngaphezu kwalokho, lesi simo singase sibeke nezingozi ezilandelayo: Ukugcwala koketshezi: Uketshezi oluqandayo lungena ngqo esilindeni se-compressor, lubangela umthelela womshini ngenxa yokungakwazi ukucindezelwa, okungalimaza kakhulu izinduku zamavalvu, ama-pistons, noma izinjini; Ukuncipha kokusebenza kwe-compressor: Ukudonsa okushisa okuphansi nokucindezela okuphansi kunciphisa amandla omsebenzi we-refrigerant ngeyunithi yobuningi, kunciphisa ukusebenza kahle kwamandla ohlelo lonke; Ukugcwalisa okungalungile: Uketshezi oluqandayo olweqile lunganciphisa uwoyela wokugcwalisa, kuthinte ukugcwalisa kwangaphakathi kwe-compressor futhi kwandise ukuguga.