Okwangoku, iivelufa butterflylicandelo elisetyenziselwa ukuqaphela ulawulo lwe-on-off kunye nokuhamba kwenkqubo yombhobho.
Isetyenziswe ngokubanzi kwiinkalo ezininzi ezifana ne-petroleum, imboni yeekhemikhali, i-metallurgy, i-hydropower njalo njalo.Kwitekhnoloji eyaziwayo yevalve yebhabhathane, ukutywinwa kwayo kuninzi isebenzisa isakhiwo sokutywina,
Izinto zokutywina ziyi-rubber, i-polytetraoxyethylene, njl. Ngenxa yokulinganiselwa kweempawu zesakhiwo, ayifanelekanga kumashishini afana nokumelana nokushisa okuphezulu, ukunyanzeliswa koxinzelelo oluphezulu, ukuxhatshazwa kwe-corrosion, kunye nokuxhatshazwa kokugqoka.
Ivalve yebhabhathane esele ikho esele ihambele phambili ngokwentelekiso yivalve yebhabhathane ene-eccentric metal eqinileyo etywiniweyo.Umzimba obanzi kunye nesitulo sevalve zizinto ezidityanisiweyo, kwaye umaleko wokutywina wesihlalo sevalvu udityaniswe ngezinto ezikwazi ukumelana nobushushu kunye ne-corrosion-resistant alloy.
Umsesane wokutywina we-laminated multi-layer ugxininiswe kwipleyiti yevalve.Xa kuthelekiswa nevalve yebhabhathane yemveli, olu hlobo lwevalve yebhabhathane lunokumelana nobushushu obuphezulu, kulula ukusebenza, kwaye alunangquzulwano xa luvula naxa luvala.Xa uvala, i-torque yendlela yokuhambisa iyanda ukuhlawulela ukutywinwa.
Ukuphucula ukusebenza kokutywinwa kwevalve yebhabhathane kunye neenzuzo zokwandisa ubomi benkonzo.
Nangona kunjalo, le valve yebhabhathane isenazo ezi ngxaki zilandelayo ngexesha lokusetyenziswa
Ekubeni i-multi-layer ithambile kwaye ilukhuni ikhonkco yokutywina elayitiweyo igxininiswe kwipleyiti ebanzi, xa ipleyiti yevalve iqhele ukuvuleka, i-medium iya kwenza ukukhuhla okulungileyo kumphezulu wokutywina kwayo, kunye nebhendi yokutywina ethambileyo kwisandwich yeshidi lesinyithi iya ngqo. kuchaphazela ukusebenza kokutywinwa emva kokukhuhla.
Ukukhawulelana neemeko zesakhiwo, esi sakhiwo asifanelekanga kwiivalvu ezinobubanzi obungaphantsi kwe-DN200, kuba ulwakhiwo olupheleleyo lwepleyiti yevalve lukhulu kakhulu kwaye ukuchasana kokuhamba kukhulu.
Ngenxa yomgaqo wesakhiwo se-eccentric ephindwe kathathu, itywina phakathi komphezulu wokutywina wepleyiti yevalvu kunye nesitulo sevalve sixhomekeke kwitorque yesixhobo sokuhambisa ukucinezela ipleyiti ebanzi kwisitulo sevalve.Kwimeko yokuhamba kakuhle, ukuphakama koxinzelelo oluphakathi, ukuqiniswa kwe-extrusion yokutywina.
Xa umjelo wejelo lokuhamba ubuyela umva, njengoko uxinzelelo oluphakathi lukhula, iyunithi yoxinzelelo oluhle phakathi kwepleyiti yevalve kunye nesihlalo sevalve ingaphantsi koxinzelelo oluphakathi, itywina liqala ukuvuza.
Ivalve yebhabhathane yokutywina eqinileyo eneendlela ezintathu-eccentric ephezulu ibonakaliswe ngokuba ikhonkco lokutywina lesihlalo esibanzi liqulunqwe ngamaleko amaninzi amacwecwe entsimbi emacaleni omabini omsesane wokutywina othambileyo omile okwe-T.Umphezulu wokutywina we-slab kunye nesihlalo sevalve sisakhiwo se-oblique cone,
Umphezulu we-oblique cone ye-valve plate idityaniswe kunye ne-alloy-resistant-resistant kunye ne-corrosion-resistant alloy materials;intwasahlobo ehleliweyo phakathi kweplate yoxinzelelo lwendandatho yokulungelelanisa kunye ne-bolt yokulungiswa kweplate yoxinzelelo ihlanganiswe ndawonye.
Esi sakhiwo sihlawulela ngokufanelekileyo indawo yokunyamezela phakathi komkhono we-shaft kunye nomzimba we-valve kunye ne-elastic deformation yentonga ebanzi phantsi koxinzelelo oluphakathi, kwaye isombulule ingxaki yokutywinwa kwe-valve kwindlela yokuhambisa i-medium-transchangeable medium.
Umsesane wokutywina wenziwa ngeshiti elithambileyo le-T elinemilo emininzi yensimbi engenasici kumacala omabini, enezibonelelo ezimbini zentsimbi eqinileyo yetywina kunye nesitywina esithambileyo, kwaye inomsebenzi wokutywina wokuvuza kwe-zero kungakhathaliseki ubushushu obuphantsi kunye nokuphakama okuphezulu. ubushushu.
Uvavanyo lubonisa ukuba xa i-pool ikwimeko yokuhamba kakuhle (i-flow direction ye-medium iyafana ne-rotation direction ye-butterfly plate), uxinzelelo kwindawo yokutywina iveliswa yi-torque yesixhobo sokuhambisa kunye isenzo soxinzelelo oluphakathi kwipleyiti yevalve.
Xa uxinzelelo oluphakathi olulungileyo lukhula, i-oblique cone surface yevalve yepleyiti kunye nomgangatho wokutywina wesihlalo sevalvu icinezelekile, ngcono umphumo wokutywina.Kwimo yokubuyela umva, itywina phakathi kwepleyiti yevalve kunye nesitulo sevalvu ixhomekeke kwitorque yesixhobo sokuqhuba ukucinezela ipleyiti yevalve kwisitulo sevalve.
Ngokunyuka koxinzelelo oluphakathi, xa iyunithi yoxinzelelo oluhle phakathi kwepleyiti yevalve kunye nesihlalo sevalve ingaphantsi koxinzelelo oluphakathi,
Amandla okuguqula agciniweyo entwasahlobo yeringi yokulungelelanisa emva kokulayishwa angakwazi ukubuyisela uxinzelelo oluqinileyo kwindawo yokutywina yepleyiti yevalve kunye nesitulo sevalve ukuhlawula ngokuzenzekelayo.
Ke ngoko, ngokungafaniyo nobugcisa bangaphambili, imodeli yoncedo ayifaki umsesane oqinileyo wokutywina we-multi-layer kwipleyiti yevalve, kodwa uyifake ngokuthe ngqo kumzimba wevalvu.Ukongezwa kweringi yohlengahlengiso phakathi kwepleyiti yoxinzelelo kunye nesitulo sevalve yeyona ndlela ifanelekileyo yokutywina enzima yeendlela ezimbini..
Iyakwazi ukuthatha indawo yeevalvu zesango, iivalve zeglowubhu kunye neglobhu.