Kev nthuav dav valve yog qhov tseem ceeb ntawm cov khoom tub yees, feem ntau ntsia nruab nrab ntawm lub tog raj kheej thiab evaporator. Lub valve nthuav dav ua rau cov pa tawm hauv nruab nrab thiab cov kev kub siab los ua qhov kub thiab txias ua kom tiav cov cua sov kom ua tiav cov nyhuv tub yees. Lub Vij Hluav Taws Xob Hluav Taws Xob Tswj Lub Valve ntws los ntawm Superheat hloov ntawm qhov kawg ntawm qhov pib ntawm thaj chaw evaporator thiab qhov tshwm sim ntawm lub tog raj kheej
Tsuas yog muab tso, lub valve valve yog tsim ntawm lub cev, qhov kub thiab txias pob thiab sib npaug raj
Lub hom phiaj ua haujlwm zoo tshaj plaws ntawm lub tshav dav hlau nthuav dav yuav tsum yog hloov qhov qhib ntawm lub sijhawm thiab tswj hwm tus nqi ntws nrog kev hloov pauv ntawm Evaporator load. Tab sis qhov tseeb, vim yog hysteresis ntawm tshav kub hloov mus rau hauv qhov kub siab lub hnab ntawv, cov lus teb ntawm qhov nthuav dav valve yog ib nrab ntawm maj mam qeeb. Yog tias peb kos lub sijhawm-ntws tawm lub sijhawm ntawm kev nthuav dav valve, peb yuav pom tias nws tsis yog txoj kab nkhaus du, tab sis txoj kab nkhaus. Qhov zoo ntawm kev nthuav dav valve yog xav txog hauv lub amplitude ntawm nthwv dej. Qhov loj dua cov amplitude, qhov qeeb qeeb ntawm cov tshuaj tiv thaiv ntawm lub valve thiab qhov phem dua qhov zoo
