Xa ufaka i-valve, ukwenzela ukukhusela isinyithi, isanti kunye nezinye izinto zangaphandle ukuba zingangeni kwi-valve kwaye zonakalise indawo yokutywina, isihluzo kunye nevalve yokugungxula kufuneka ifakwe;ukwenzela ukugcina umoya ocinezelweyo ucocekile, isahluli samanzi oyile okanye isihluzi somoya kufuneka sifakwe phambi kwevalve.
Ukuqwalasela ukuba imeko yokusebenza ye-valve inokujongwa ngexesha lokusebenza, kuyimfuneko ukuseta izixhobo kunyekhangela iivalvu;ukuze kugcinwe ubushushu bokusebenza, misela iindawo zokugcina ubushushu ngaphandle kwevalve.
Ukufakwa emva kwevalve, ivalve yokhuseleko okanye ivalve yokukhangela kufuneka ifakwe;ukuqwalasela ukusebenza okuqhubekayo kwevalve, ekulungele ingozi, inkqubo ehambelanayo okanye inkqubo yokudlula isetyenzisiwe.
Khangela indawo yokukhusela ivalvu
Ukuze kuthintelwe ukuvuza kwe-valve yokutshekisha okanye ukubuya kwe-medium emva kokungaphumeleli, okunokubangela ukuthotywa komgangatho wemveliso kwaye kubangele izingozi kunye nezinye iziphumo ezingathandekiyo, i-valve enye okanye ezimbini zokuvala zifakwe ngaphambi nangemva kwe-valve yokukhangela.Ukuba iivalve ezimbini zokuvala zibonelelwe, ivalve yokutshekisha inokuchithwa kwaye ilungiswe ngokulula.
Amaziko okukhusela ivalvu yokhuseleko
Iivalve zebhlokhi ngokuqhelekileyo azifakwanga ngaphambi nangemva kwendlela yokufakela, kwaye ingasetyenziselwa kuphela kwiimeko zomntu ngamnye.Ukuba amandla aphakathi aqukethe amaqhekeza aqinileyo kwaye achaphazela ukuba i-valve yokukhusela ayikwazi ukuvalwa ngokuqinileyo emva kokukhupha, i-valve yesango enesitywina sokukhokela kufuneka ifakwe ngaphambi nangemva kwevalve yokhuseleko.Ivalve yesango kufuneka ibekwimeko evuleke ngokupheleleyo.DN20 khangela ivalve emoyeni.
Xa iwax ekhupha umoya kunye nezinye imidiya zikwimeko eqinileyo kwiqondo lobushushu begumbi, okanye xa ubushushu bolwelo olukhanyayo kunye nezinye izinto zosasazo zingaphantsi kwe-0 degrees celsius ngenxa yokuncipha kwegesi yoxinzelelo, ivalve yokhuseleko ifuna ukulandelwa ngomphunga.Kwizivalo zokhuseleko ezisetyenziswa kumajelo eendaba ezonakalisayo, ngokuxhomekeke ekuxhathiseni ukubola kwevalve, cinga ngokudibanisa ifilimu ekwaziyo ukumelana nokudubula kwivalve.
Ivalve yokhuseleko lwerhasi ixhotyiswe ngokubanzi ngevalve yokudlula ngokwedayamitha yayo ukuze kungene umoya ngesandla.
Indawo yokukhusela ivalve yokunciphisa uxinzelelo
Ngokuqhelekileyo kukho iintlobo ezintathu zokunciphisa uxinzelelo lwezixhobo zofakelo lwevalvu.Iigeyiji zoxinzelelo zifakwe ngaphambi nangemva kwevalve yokunciphisa uxinzelelo ukwenza lula ukubonwa koxinzelelo ngaphambi nangemva kwevalve.Kukho kwakhona i-valve yokhuseleko evalelwe ngokupheleleyo emva kwevalve ukukhusela uxinzelelo emva kokuba i-valve igxuma xa i-valve emva kwevalve idlula uxinzelelo oluqhelekileyo emva kokuba i-valve yokunciphisa uxinzelelo ingaphumeleli, kubandakanywa nenkqubo emva kwevalve.
Umbhobho wokucoca ufakwe phambi kwevalve yokuvala phambi kwevalve, esetyenziselwa ukuhlamba umlambo wokukhupha, kwaye ezinye zisebenzisa izibatha.Umsebenzi oyintloko wombhobho wokudlula ukuvala i-valve yokuvala ngaphambi nangemva kwe-valve yokunciphisa uxinzelelo xa i-valve yokunciphisa uxinzelelo ihluleka, vula i-valve ye-bypass, ukulungelelanisa ukuhamba ngesandla, kwaye udlale indima yokujikeleza kwexeshana, ukuze kulungiswe ivalve yokunciphisa uxinzelelo okanye ukubuyisela ivalve yokunciphisa uxinzelelo.
Amaziko okukhusela imigibe
Kukho iintlobo ezimbini zombhobho wokudlula kwaye akukho mbhobho wokudlula kwicala lomgibe.Kukho ukubuyiswa kwamanzi e-condensate kunye ne-condensate intlawulo engabuyiswanga, kunye nomthamo wokukhupha imigibe kunye nezinye iimfuno ezikhethekileyo zingafakwa ngokufanayo.
Umgibe onevalve yokudlula usetyenziswa ikakhulu ukukhupha umthamo omkhulu we-condensate xa umbhobho uqala ukusebenza.Xa kulungiswa umgibe, akufanelekile ukusebenzisa umbhobho we-bypass ukukhupha i-condensate, njengoko oku kuya kubangela ukuba i-steam ibaleke kwindlela yokubuya kwamanzi.
Kwiimeko eziqhelekileyo, umbhobho we-bypass awufuni.Kuphela xa kukho iimfuno eziqinileyo kwiqondo lokushisa lokushisa, izixhobo zokufudumeza ukuveliswa okuqhubekayo zixhotyiswe ngombhobho we-bypass.
Ixesha lokuposa: Sep-22-2021