Kusarudzwa kunonzwisisika kwerudzi rwevharuvhu kunogona kuderedza kushandiswa kwezvinhu, kuderedza kupikisa kwenzvimbo uye kushandiswa kwesimba, kufambisa kuiswa uye kuderedza kugadzirisa.Muchikamu chino, Dongsheng Valve yakaunza kwauri mavharuvhu anoshandiswa kumvura yegungwa.
1.Shut-off valve
Iyo process pombi dhayamita mune yakakura-yakakura yemvura yegungwa desalination inowanzoitwa DN300-DN1600, iyo iri kupfuura chiyero chekushandiswa kwese.bhora mavharuvhuuye mavharuvhu.Kuenzaniswa negedhi vharafuyemhando imwechete (Z41H), iyobutterfly valveine mabhenefiti echimiro chakareruka, corrosion resistance, kupfupika kwekuisa kureba, kushomeka kwesimbi kushandiswa, uye zvakafanana chidimbu chekudzivirira coefficients yevharuvhu.Izvo zvakanyanya hupfumi uye zvinoshanda kusarudza vhavhavhavhavhavhavhavhavhavhavhavhavhavhavha yekuvhara.Zvinoenderana nedanho rekumanikidza, mavharuvhu eshavishavi anogona kupatsanurwa kuita yakaderera-kumanikidza butterfly mavharuvhu uye yakakwirira-kumanikidza butterfly mavharuvhu.
Low pressure butterfly valve
Ivharuvhu yeshavishavi yakaderera inogona kutora pakati isina-pini-yakaiswa rubber butterfly valve.Kana vharuvhu yeshavishavi iri pasi kana kuenzana neDN500, chinongedzo chewafer chinogamuchirwa.Kana butterfly valve ≥DN550, kubatana kweflange kunogamuchirwa.Kana dhayamita yevharuvhu yeshavishavi iri pasi kana kuenzana ne6in.(DN150), simba rekuvhura riri pasi pe400N, uye rinoshandiswa nemubato.Kana iyo dhayamita yevharuvhu yeshavishavi iri ≥8in.(DN200), inoshandiswa nebhokisi regiya.Nekuda kweiyo yakaderera kumashure kudzvinyirira kweiyo low pressure valve, kushandiswa kweiyo centerline chimiro hakuzowedzere yakawandisa torque.Ichi chimiro chine zvisimbiso zviviri.Chisimbiso chikuru chinowanikwa ne pre-tightening simba re butterfly plate uye chigaro chevharuvhu, uye chechipiri chisimbiso chinowanikwa nekupindira kwekupindira kwehunde yevharuvhu uye gomba rechigaro chevharuvhu.Sezvo tsinde yevhavha yakanyatsoparadzaniswa kubva pakati uye isingatore mumvura yegungwa, tsinde yevhavha inogona kugadzirwa ne2Cr13 kana zvinhu zvakaenzana.Muviri wevharuvhu wakagadzirwa ne ductile iron lining EPDM kuti uwedzere kuseta kuita.Sezvo muviri wevharuvhu usingabatani nepakati, izvo zvinodiwa zvekuita zvemuviri wevhavha zvinoderedzwa.
High pressure butterfly valve
Paunosarudza high-pressure butterfly valve materials, kunze kwekufungisisa corrosion factors dzemvura yegungwa, kudzvinyirira kupikisa kwezvinhu zvinoda kufungwa.Kana kumanikidza kwekushanda kuri 69bar uye iyo yakanyanya kudzvanywa iri ≥85bar (iyo yekuvhara yekumanikidza reverse osmosis yakakwira-pressure pombi), nekuda kweiyo yakakwira kumashure kumanikidza, kuitira kuderedza Torque, high pressure butterfly valve inotora kaviri eccentric chimiro.Kana saizi yezita revhavhavhavhavha iri ≤DN500, iyo wafer yekubatanidza inogamuchirwa.Kana saizi yezita revharuvhu iri ≥DN550, kubatana kweflange kunogamuchirwa.The pressure grade is CI600, the valve body and butterfly plate yakagadzirwa ne dual-phase steel ASTMA995GR.4A.Nekuda kwekuti dzinde revharuvhu rakavhurirwa pakati, dzinde revharuvhu rakagadzirwa neASTMA276UNS31803, uye chigaro chevharuvhu i RPTFE.Iyo yakapetwa kaviri eccentric chimiro inowedzera nharaunda yekupikisa coefficient.Iyo butterfly plate uye tsinde yevharuvhu inoda mapini kuti agadzirwe, uye izvo zvinorwisa-corrosion zvinodiwa zvepini zvakafanana nezvimwe zvinoyerera-kuburikidza nezvikamu.
Ivhavha yekuongorora inowanzoiswa panzvimbo yekubuda kwepombi yemvura yegungwa kudzivirira kudzoka kwemvura yegungwa nenyundo yemvura kubva pakukuvadza midziyo.Parizvino, cheki mavharuvhu anoshandiswa mugungwa desalination mapurojekiti anosanganisira anononoka-kuvhara butterfly cheki mavharuvhu, rakazara rabha-lined.butterfly wafer cheki mavharuvhu,single flap wafer cheki mavharuvhuuye single flap duplex simbi wafer cheki mavharuvhu.
Kunonoka kuvhara butterfly cheki vharafu
Chinhu chikuru chevhavha inononoka kuvhara butterfly ndeye ductile iron.Iyo mechanical kana hydraulic inononoka-kuvhara mvura nyundo ine kumira kwakanaka kune nyundo yemvura uye yakakodzera kushandiswa kwepasi-kudzvinyirira.Kushandiswa kwechikamu chemvura yechigadzirwa chemvura yegungwa desalination project.
Yakazara rabha-yakaiswa butterfly type wafer check valve
Rubber-lined butterfly-type wafer check valve inonyatso kuvandudzwa kwekudzivirira-kuora kwevhavhavha yekuongorora inononoka-pedyo yeshavishavi.Muviri wevharuvhu nedzinde zvakazara rabha-mutsetse, uye vharafu inovhara inogona kugadzirwa ne duplex simbi isina tsvina kana nickel aluminium bhuronzi.Iri rudzi rwevharuvhu rakagadzirirwa pakubuda kwepombi yemvura yegungwa yakaderera uye yakakodzera kuiswa pamapaipi makuru-diameter.Iyo yezita dhayamita yevhavha iri muhuwandu hweDN200-1200.Izvo zvinodikanwa kubhadhara kune yekuisa nzvimbo zvinodiwa zvevhavha panguva yekugadzira.Kuiswa kwakashata kwevharuvhu kuchaita kuti dhisiki yevharuvhu uye chitubu chishande pahunde yevharuvhu kwenguva yakareba, kuparadza chisimbiso pakusangana pakati pemuviri wevharuvhu uye hunde yevharuvhu, kupinza mukati, uye kuita kuti muviri wevharuvhu uparare.
Single flap wafer check valve
Ivhavha yevhavha yevhavha yevhavha ine dhizaini iri nyore uye nzvimbo diki yekuisa, uye inogona kushandiswa pasi pekumanikidzwa kwakadzika kana kudzvanywa kwemamiriro.Ivhavha inotora duplex simbi isina tsvina yakazara, iyo ine yakanaka yegungwa corrosion resistance, lightweight, inogona kuiswa yakatwasuka uye yakatwasuka, uye iri nyore kushandisa.Mumvura yegungwa desalination chirimwa, imwe-vharafu cheki cheki valve ≤DN250 inowanzoshandiswa.Kana saizi yezita revharuvhu yakakura kupfuura DN250, nyundo yemvura ine mhedzisiro iri pachena uye ruzha rwekuita rune ruzha.Yakakura-dhayamita imwe chete flap cheki vharafu inoshandiswa zvakanyanya mukupomba gasi.Ivhavha ine chivharo chisina kuzara, kuvhura kwepamusoro kwevhavha yevhavha ndeye 45 °, kupikisa kunowedzera kunowedzera, uye simba rekuyerera rinoderera.
Nguva yekutumira: Sep-30-2021