Umahluko kulwakhiwo lwevalve yebhabhathane yahlula iindidi ezine zeevalvu zebhabhathane, ezizezi:ivalve yebhabhathane egxile, ivalve yebhabhathane enye eccentric,ivalve yebhabhathane eccentric kabinikunye nevalve yebhabhathane eccentric kathathu.Ithini ingqikelelo yolu gqatso?Ungagqiba njani ukuba usebenzise nini ivalve yebhabhathane, xa usebenzisa ivalve yebhabhathane enye eccentric, xa usebenzisa ivalve yebhabhathane ephindwe kabini kunye nevalve yebhabhathane eccentric?Abasebenzisi abaninzi abacacanga ngakumbi.Masifunde kunye.
Iivalve zebhabhathane ezigxininisiweyo, iivalve zebhabhathane eccentric enye, kabiniiivalve butterfly eccentrickunye ne-triple eccentric butterfly valves eneneni zibonakalisa inkqubo yokuvula kunye nokuvala ngomzamo omncinci nangaphantsi kunye nokunciphisa okuncinci kumphezulu wokutywina.Ngokumisela indawo ye-shaft ejikelezayo yepleyiti yevalve yebhabhathane, ukutywinwa kunye nokuvulwa kweendawo zevalve yebhabhathane kunokutshintshwa.Ngaphantsi kweemeko ezifanayo, i-torque ye-valve xa ivula iyanda ngokulandelelana.Xa ivalve ivuliwe, i-engile yokujikeleza efunekayo ukuze ipleyiti yevalve yahlukane netywina incinci ngokulandelelana.
Uphawu lolwakhiwo lwevalve yebhabhathane ebambeneyo kukuba iziko le-shaft yesikhondo sevalve, umbindi wepleyiti yebhabhathane kunye nombindi womzimba wevalve zikwindawo enye.Ngokuqhelekileyo, ukuba iivalve zebhabhathane ezigxininisiweyo zinokusetyenziswa, kufuneka zisetyenziswe kangangoko kunokwenzeka.Ngenxa yokuba uhlobo olugxininisiweyo alufuni ukusebenza kokutywinwa okuphezulu ngokubhekiselele kwisakhiwo okanye ukusebenza, yimveliso eqhelekileyo.Ukuze unqobe i-extrusion, i-scraping, kunye nokuqinisekisa ukusebenza kokutywinwa, isihlalo sevalve yevalve yebhabhathane egxininisekileyo yenziwe ngerabha okanye i-PTFE kunye nezinye izinto ezilastiki, eziyivalve yebhabhathane etywiniweyo.Oku kwenza ukusetyenziswa kweevalvu zebhabhathane ezigxininisiweyo kuxhomekeke kunyino lobushushu.Ukuze kulungiswe ingxaki ye-extrusion yepleyiti yebhabhathane kunye nesihlalo sevalve, kwasungulwa ivalve yebhabhathane eccentric.Isici sayo sesakhiwo kukuba i-shaft center yesikhondo sevalve iyatenxa kumbindi wepleyiti yebhabhathane.
Ivalve yebhabhathane ephindwe kabini yeyona isetyenziswa kakhulu.Uphawu lwayo lolwakhiwo kukuba umbindi we-shaft yesikhondo sevalvu uyatenxa kumbindi wepleyiti yebhabhathane kunye nombindi womzimba wevalvu.Iyatenxa kwiziko ezibini ezisembindini, kungoko ibizwa ngokuba yi-double eccentric butterfly valve.Uninzi lwazo lutywinwe umgca.Xa indawo yokutywina ivaliwe, kukho ukungqubuzana phakathi kwe-disc plate kunye nesihlalo sevalve, kwaye umphumo wokutywina ulungile kakhulu.Ineempawu zendawo encinci kunye noxinzelelo olunamandla.Emva kokuba i-valve ivuliwe, ipleyiti yebhabhathane inokuthi iqhawule ngokukhawuleza kwisihlalo sevalve, ephelisa kakhulu i-extrusion engapheliyo kunye nokukhuhla phakathi kwepleyiti kunye nesihlalo, inciphisa umgama wokumelana nokuvula, ukunxiba, kunye nokuphucula ubomi benkonzo yesihlalo sevalve.
Ivalve yebhabhathane eneeccentric ezintathu ine-eccentricity yesithathu kwisiseko sevalve yebhabhathane ephindwe kabini.Ubume besibini sokutywina akusiyo i-cone enhle, kodwa i-oblique cone.Uninzi lwazo ngamandla omgama omfutshane kunye nokutywinwa komphezulu.I-stem shaft yevalve yebhabhathane ene-eccentric yi-shaft enamacandelo amathathu.Amacandelo amabini e-shaft ye-valve ye-valve yamacandelo amathathu agxininisekile, kwaye i-centerline ye-shaft yecandelo eliphakathi iyaphambuka kwi-axis yeziphelo ezimbini ngomgama ophakathi, kwaye i-butterfly plate ifakwe phakathi.kwishaft.Isakhiwo esinjalo se-eccentric senza i-butterfly plate ibe yi-double eccentric shape xa ivulekile ngokupheleleyo, kunye ne-eccentric shape enye xa i-butterfly plate ijika kwindawo evaliweyo.Ngenxa yempembelelo ye-eccentric shaft, xa isondele ekuvaleni, ipleyiti yebhabhathane ihambisa umgama kwindawo yokutywina yesihlalo sevalve, kwaye ipleyiti yebhabhathane ihambelana nendawo yokutywinwa kwesitulo sevalve ukufezekisa ukusebenza okuthembekileyo kokutywinwa.Kwenza ukuphikisana ukuba itywina eliqinileyo linotywino olubi, kwaye itywina elithambileyo linesiphumo esihle sokutywinwa kodwa alimelani nobushushu obuphezulu.
Xa usebenzisa i-valve yebhabhathane ye-concentric, xa ukhetha i-valve ye-butterfly e-eccentric ephindwe kabini okanye i-valve ye-butterfly eccentric ephindwe kathathu, ngokuyinhloko ixhomekeke kwiimeko zokusebenza kunye nohlahlo lwabiwo-mali.
Ixesha lokuposa: Nov-28-2022