Ivalve yebhabhathane, ekwaziwa ngokuba yivalve yeflap, yivalve elawulayo enesakhiwo esilula.Izivalo zebhabhathane zingasetyenziselwa ulawulo lokutshintsha koxinzelelo lwemibhobho yoxinzelelo oluphantsi.Ivalve yebhabhathane isebenzisa idiskhi okanye ipleyiti yebhabhathane njengediski, ejikeleza ivalve shaft ukuvula nokuvala.
Iivalvu zebhabhathane zingasetyenziselwa ukulawula ukuhamba kweentlobo ngeentlobo zolwelo olunjengomoya, amanzi, umphunga, imithombo yeendaba eyonakalisayo eyahlukahlukeneyo, udaka, i-oyile, isinyithi solwelo kunye nemithombo yeendaba yeradioactive.Ngokukodwa idlala indima yokusika kunye ne-throttling kwipayipi.Inxalenye yokuvula kunye nokuvala i-valve yebhabhathane yi-disc-shaped butterfly plate ejikelezayo kwi-axis yayo kumzimba wevalve ukufezekisa injongo yokuvula nokuvala okanye ukulungiswa.
Iimpawu eziphambili zevalve yebhabhathane zezi: i-torque encinci yokusebenza, indawo encinci yokufaka kunye nobunzima obulula.Ukuthatha i-DN1000 njengomzekelo, i-valve ye-butterfly malunga ne-2 T, ngelixa i-valve yesango i-3.5 T, kwaye i-valve butterfly ilula ukudibanisa kunye nezixhobo ezahlukeneyo zokuqhuba, kwaye inokuqina okulungileyo kunye nokuthembeka.Ukungalungi kwe-valve ye-butterfly etywiniweyo kukuba xa isetyenziselwa i-throttling, i-cavitation iya kwenzeka ngenxa yokusetyenziswa okungafanelekanga, okuya kubangela ukukhupha kunye nokulimala kwesihlalo se-rubber, ngoko ke indlela yokuyikhetha ngokuchanekileyo kuxhomekeke kwiimfuno zokusebenza. iimeko.Ubudlelwane phakathi kokuvulwa kwevalve yebhabhathane kunye nesantya sokuhamba ngokusisiseko sitshintsha ngokuhambelana.Ukuba isetyenziselwa ukulawula ukuhamba, iimpawu zayo zokuhamba nazo zihambelana ngokusondeleyo nokumelana nokuhamba kombhobho.Ngokomzekelo, ukuba iipayipi ezimbini zifakwe kunye nobubanzi obufanayo be-valve kunye nefom, kodwa i-coefficient yokulahleka kwemibhobho iyahluka, izinga lokuhamba kweevalvu liya kuhluka kakhulu.Ukuba i-valve ikwimeko ye-throttling enkulu, i-cavitation ijwayele ukuba yenzeke ngasemva kweplate ye-valve, enokonakalisa i-valve.Ngokuqhelekileyo, isetyenziswe ngaphandle kwe-15 °.Xa ivalve yebhabhathane ikwindawo ephakathi yokuvula, imilo yokuvula eyenziwe ngumzimba wevalvu kunye nencam yangaphambili yepleyiti yebhabhathane ibekwe embindini wevalve shaft, kwaye la macala mabini enza amazwe ahlukeneyo.Umphambili wepleyiti yebhabhathane kwelinye icala uhamba kwicala lamanzi aqukuqelayo, kwaye elinye icala liya kwicala lamanzi aqukuqelayo.Ke ngoko, elinye icala lomzimba wevalve kunye nepleyiti yevalve zenza indawo evulekileyo efana nombhobho, kwaye elinye icala lifana nokuvula okumise okwe-throttle.Isantya sokuhamba kwicala le-nozzle sikhawuleza kakhulu kunoko kwicala le-throttle, kwaye uxinzelelo olubi luya kuveliswa phantsi kwevalve kwicala le-throttle, rhoqo I-rubber seal iya kuphuma.I-torque yokusebenza yevalve yebhabhathane iyahluka ngokuvula kunye nokuvula kunye nokuvalwa kwendlela yevalve.Kwiivalve zebhabhathane ezinqamlezileyo, ngakumbi iivalve ezinobubanzi obukhulu, ngenxa yobunzulu bamanzi, i-torque eveliswa ngumahluko phakathi kweentloko eziphezulu nezisezantsi ze-valve shaft ayinakuhoywa.Ukongezelela, xa i-elbow ifakwe kwicala lokungena kwi-valve, ukuhamba kwe-bias kwenziwa kwaye i-torque iya kwanda.Xa i-valve iphakathi kokuvula, indlela yokusebenza kufuneka izivalele ngenxa yesenzo se-torque yamanzi.
Ivalve yebhabhathane luhlobo lwevalve esebenzisa uhlobo lwediski yokuvula kunye neendawo zokuvala ukujika umva naphambili malunga nama-90 ° ukuvula, ukuvala okanye ukulungelelanisa ukuhamba okuphakathi.I-valve ye-Butterfly ayinayo nje isakhiwo esilula, ubungakanani obuncinci, ubunzima obuncinci, ukusetyenziswa kwezinto eziphantsi, ubungakanani obuncinci bokufakela, i-torque encinci yokuqhuba, ukusebenza okulula kunye nokukhawuleza, kodwa kunomsebenzi wokulawula ukuhamba kakuhle kunye neempawu zokuvala kunye nokutywinwa ngexesha elifanayo.Enye yeendidi zevalve ezikhawulezayo.Iivalve zebhabhathane zisetyenziswa kakhulu.Iindidi kunye nobuninzi bokusetyenziswa kwayo zisakhula, kwaye zikhula ngokubhekisele kubushushu obuphezulu, uxinzelelo oluphezulu, ububanzi obukhulu, ukutywinwa okuphezulu, ubomi obude, iimpawu ezihle kakhulu zokulungelelanisa, kunye nokusebenza okuninzi kwevalve.Ukuthembeka kwayo kunye nezinye iimpawu zokusebenza zifikelele kwinqanaba eliphezulu.
Ivalve yebhabhathane ikholisa ukuba ngaphantsi kwe 90° ukusuka ekuvulekeni ngokupheleleyo ukuya ekuvaleni ngokupheleleyo.Ivalve yebhabhathane kunye nentonga yebhabhathane ayinasakhono sokuzivalela.Ukuze ubeke ipleyiti yebhabhathane, isinciphisi segiya leentshulube kufuneka sifakwe kwintonga yevalve.Ukusetyenziswa kokunciphisa i-worm gear akugcini nje ukwenza ukuba ipleyiti yebhabhathane ibe nekhono lokuzivalela, yenza ukuba ipleyiti yebhabhathane ime kuyo nayiphi na indawo, kodwa iphucula ukusebenza kwevalve.Iimpawu zevalve yebhabhathane ekhethekileyo yeshishini: ukumelana nobushushu obuphezulu, uluhlu oluphezulu loxinzelelo olusebenzayo, idiameter enkulu yevalve, umzimba wevalvu wenziwe ngentsimbi yekhabhoni, kwaye umsesane wokutywina wepleyiti yevalve yenziwe ngentsimbi yentsimbi endaweni yentsimbi. iringi yerabha.Iivalvu zebhabhathane ezinobushushu obuphezulu ziveliswa ngeepleyiti zentsimbi eziwelding kwaye zisetyenziswa ikakhulu kwimibhobho yerhasi yeflue kunye nemibhobho yerhasi kumajelo obushushu obuphezulu.
Ixesha lokuposa: Aug-09-2023