Iivalvu zokukhangela zizivalo ezizenzekelayo ezivula ngokuqukuqela ukuya phambili kwaye zivale ngokubuyela umva.
Uxinzelelo lolwelo oludlula kwisixokelelwano luvula ivalve, ngelixa nakuphi na ukuguqulwa kokuhamba kuya kuvala ivalve.Ukusebenza ngokuthe ngqo kuya kwahluka ngokuxhomekeke kuhlobo lwendlela yokuHlola isivalo.Uninzi lweentlobo eziqhelekileyo ze-Check valves zi-swing, lift (piston kunye nebhola), ibhabhathane, i-stop and tilting-disk.
Apha umvelisi we-RXVAL wazisa umahluko phakathi kwe-Swing Check Valve kunye ne-Lift Check Valve.
Swing Khangela iValve
Isiseko sokujingi Khangela ivalve inomzimba wevalve, ibhonethi, kunye nediski edityaniswe kwihenjisi.I-disk ijika isuka kwi-valve-seat ukuvumela ukuhamba ukuya kwicala eliya phambili, kwaye ibuyela kwisitulo sevalve xa ukuqukuqela okunyukayo kumisiwe, ukuthintela ukuhamba ngasemva.
I-disc kuhlobo lokujingi Khangela ivalve ayilawulwa njengoko ivula okanye ivala ngokupheleleyo.Zininzi iidiski kunye noyilo lwezihlalo ezikhoyo, ukuze kuhlangatyezwane neemfuno zezicelo ezahlukeneyo.I-valve ivumela ukuhamba okupheleleyo, okungathintekiyo kwaye ivale ngokuzenzekelayo njengoko uxinzelelo luyancipha.Ezi zivalo zivaliwe ngokupheleleyo xa ukuhamba kufikelela kwi-zero, ukuze kuthintelwe ukuhamba ngasemva.I-turbulence kunye nokuhla koxinzelelo kwivalve kuphantsi kakhulu.
Ivalve yokujonga i-Swing, ujingi jonga ivalve kwisihlalo sevalve yediski ejikeleze i-axis yeshaneli yokujikeleza, ngenxa yokuba ishaneli yevalve ibe yindawo elungelelanisiweyo, yokumelana nokuhamba kune-valve encinci yokukhangela, ilungele iimeko ezinkulu zecaliber ekuhambeni okuphantsi kwaye akukho flow itshintsha rhoqo. , kodwa akufanele isetyenziselwe ukuhamba kwe-pulsating, ukusebenza kokutywinwa kungaphantsi kokuphakamisa.
Phakamisa iValve yokuHlola
Uyilo lwesihlalo sevalve yokuphakamisa-Khangela iyafana nevalve yeGlobe.I-disc ngokuqhelekileyo ikwimo yepiston okanye ibhola.
Iivalvu zokuPhakamisa zifanelekile ngokukodwa kwinkonzo yoxinzelelo oluphezulu apho isantya sokuhamba siphezulu.Kwilifu Khangela iivalvu, idiski ikhokelwa ngokuchanekileyo kwaye ingena ngokugqibeleleyo kwideshpot.Iivalvu zokuPhakamisa zifanelekile ukufakwa kwimigca yepayipi ethe tye okanye ethe nkqo kunye nokunyuka okunyukayo.
Ukuqukuqela ukunyusa Khangela iivalvu kufuneka zisoloko zingena ngaphantsi kwesitulo.Njengoko ukuhamba kungena, ipiston okanye ibhola iphakanyiswa ngaphakathi kwezikhokelo ukusuka esihlalweni ngoxinzelelo lokunyuka okunyukayo.Xa ukuhamba kuyeka okanye ukubuyisela umva, ipiston okanye ibhola inyanzeliswa kwisihlalo sevalve ngokubini kokubuyela umva kunye nomxhuzulane.
I-disc ingasetyenziswa kuxinzelelo oluphezulu lwevalve yokukhangela ibhore encinci.Umzimba wevalve yevalve yokukhangela i-valve iyafana nevalve yokusika (enokuthi isetyenziswe kunye nevalve yokumisa), ngoko inomlinganiso omkhulu wokuxhathisa ulwelo.Ulwakhiwo lufana nevalve yokusika, umzimba wevalve kunye nediski ziyafana nevalve yokusika.Inxalenye esezantsi yevalve ephezulu kunye nomkhono wesikhokelo sokuqhuba ivalve, ivalve kwivalve iphakamisa isikhokelo esisimahla, ukukhanya okulula okuqhutywayo, xa i-medium ezantsi, ivalve ivuleke ngamajelo eendaba, xa imidiya iyeka ukuhamba, ivalve nge ukuzinza ngokuthe nkqo esihlalweni, ukuthintela imidiya kwisiphumo esinyukayo.
Ivalve yokukhangela yokunyusa ngokuthe tye, indlela yokungena kunye nokuphuma kwendawo ephakathi i-perpendicular ukuya kwicala lesihlalo sevalve.
Ivalve yokukhangela i-vertical lift inecala elifanayo njengesihlalo sevalve kunye nesalathiso sokungena kunye nokuphuma kwevalve, kwaye ukuchasana kokuhamba kuncinci kunoko kwevalve ethe ngqo.
Ixesha lokuposa: Apr-29-2022