Butterfly cheki vharafuinoreva vharafu rinovhurika nekuvhara dhisiki zvichienderana nekuyerera kwepakati pachayo, uye rinoshandiswa kudzivirira yepakati kubva kuyerera ichidzoka.Inonziwo cheki valve, imwe-nzira valve, reverse flow valve, uye back pressure valve.Ivhavha yekuongorora imhando yevhavha yega yega, basa rayo guru nderokudzivirira kuyerera kwemashure kwepakati, kudzivirira pombi uye motokari yemotokari kubva pakudzokera shure, uye kubudiswa kwemukati wemudziyo.Cheki mavharuvhu anogona zvakare kushandiswa kugovera mapaipi ekubatsira masisitimu uko kudzvanywa kunogona kukwira pamusoro pesimba rehurongwa.Cheki mavharuvhu anogona kukamurwa kuita swing cheki mavharuvhu (inotenderera maererano nepakati pesimba rinokwevera pasi), simudza cheki mavharuvhu (achifamba neaxis), uye butterfly cheki mavharuvhu (anotenderera nepakati).
Basa
Basa re butterfly check valve ndere kubvumira svikiro kuti riyerere munzira imwe chete uye kudzivirira kuyerera kune rimwe divi.Kazhinji rudzi urwu rwevharuvhu runoshanda rwoga.Pasi pechiito chekumanikidza kwemvura kuyerera kune imwe nzira, vharafu yevhavha inovhura;apo mvura inoyerera ichienda kune imwe nzira, iyo mvura inodzvinyirira uye kuzvibata kwevhavha yevhavha inobata pachigaro chevhavha, nokudaro ichicheka kuyerera.
Mamiriro ezvinhu
Butterfly cheki mavharuvhu anosanganisira swing cheki mavharuvhu uye simudza cheki mavharuvhu.Iyo swing cheki vharafu ine hinge mechanism uye dhisiki yevharuvhu semusuwo unozorora zvakasununguka pane yakatemerwa chigaro chevharuvhu.Kuitira kuti ive nechokwadi chekuti chivharo chevhavha chinogona kusvika panzvimbo yakakodzera yechigaro chevhavha pese pese, iyo valve clack inogadzirwa mune hinge mechanism kuitira kuti iyo valve clack ive nenzvimbo yakakwana yekutendeuka uye inoita kuti vharafu inyatso uye ibatane zvachose. chigaro chevharuvhu.Iyo valve clack inogona kugadzirwa nesimbi, dehwe, rabha, kana synthetic yekuvhara inogona kuiswa pasimbi, zvichienderana nekuita zvinodiwa.Kana iyo swing cheki vharafu yakavhurwa zvizere, iyo fluid pressure inenge isina kuvharika, saka kudonha kwemhepo kuburikidza nevharuvhu kudiki.Ivhavha disc yevhavha yekutarisa yekusimudzira yakagara pachisimbiso chechigaro chevhavha pamutumbi wevharuvhu.Kunze kwekuti diski inogona kusimudzwa uye kuderedzwa zvakasununguka, iyo yose yevhavha yakafanana nevhavha yekuvhara.Iyo mvura inodzvinyirira inosimudza dhisiki kubva pachisimbiso chechigaro, uye kumashure kwepakati kunoita kuti disc idzokere pachigaro uye icheke kuyerera.Zvinoenderana nemamiriro ekushandiswa, iyo valve clack inogona kuve-yese-simbi chimiro, kana inogona kunge iri muchimiro cherabha padhi kana mhete yerabha yakaiswa pane valve clack frame.Sevhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhaswe,kupfuura kwemvura kuburikidza nevhavhavhavhavhavha inosimudza zvakare yakamanikana,saka kudonhera kudonhera nevhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavharinokusimudza,uye kuyerera kwevhavhavhavha inotapukira. kashoma.Rudzi urwu rwevharuvhu kazhinji runofanira kuisirwa yakatwasuka mupombi.
Zvinoenderana nechimiro chayo uye nzira yekuisa, iyo cheki valve inogona kukamurwa kuita:
1. Iyo dhisiki yevhavhavhavhavhavhavha yekuongorora yakaumbwa nedhisiki, uye inotenderera ichitenderedza shaft yemugero wechigaro chevhavha.Nemhaka yekuti mugero wemukati wevharuvhu wakagadziridzwa, kuyerera kwekudzivirira kudiki pane kweiyo inosimuka butterfly cheki valve.Inokodzera kuderera kwekuyerera uye kusingadzoki kuyerera.Zviitiko zvakakura zvedhayamita neanogara achichinja, asi asina kukodzera kupuruzira kuyerera, uye kuita kwayo yekuisa chisimbiso hakuna kunaka semhando yekusimudza.Iyo butterfly cheki vharafu yakakamurwa kuva marudzi matatu: vharafu imwe, vharafu mbiri uye vharafu yakawanda.Aya marudzi matatu anonyanya kukamurwa zvichienderana nedhayamita yevharuvhu.Chinangwa ndechekudzivirira yepakati kumira kana kuyerera kumashure uye kuderedza iyo hydraulic shock.
2. Butterfly check valve: Maererano nekushanda kweiyo disc, yakakamurwa kuva marudzi maviri: 1. Ivhavha yekuongorora ine diski inotsvedza pamwe chete nechepakati pepakati pemuviri wevhavha.Iyo butterfly cheki vharafu inogona kuiswa chete pahorizontal pombi.Bhora rakatenderera rinogona kushandiswa pane dhisiki yediki-diameter yekutarisa valve.Chimiro chemuviri wevharuvhu yevhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhashiwa (iyo inogona kushandiswa zvakafanana neglobe valve),sakaiyo fluid resistance coefficient yakakura.Chimiro chayo chakafanana nevhavha yekumisa, uye muviri wevhavha uye disc zvakafanana nevhavha yekumira.Chikamu chepamusoro chevhavha disc uye chikamu chezasi chechivharo chevhavha chinogadziriswa nemaoko ekutungamira.Iyo dhairekitori yedhisiki inogona kutamiswa kumusoro uye pasi zvakasununguka muvharuvhu rekutungamira sleeve.Kana iyo yepakati ichiyerera ichidzika pasi, dhisiki inovhura nekukanda kwepakati.Inodonhera pachigaro chevharuvhu kudzivirira yepakati kubva kuyerera ichidzoka.Kutungamira kwepakati pekupinda nekubuda migero yeyakatwasuka-kuburikidza ne butterfly cheki vharafu inotenderedza kugwara rechigaro chevharuvhu;iyo vertical lift check valve ine nzira imwechete yepakati inopinda uye inobuda migero sevhavha yechigaro chevhavha, uye kuyerera kwayo kunopesana kuduku kudarika kweiyo yakatwasuka-kuburikidza nemhando;2. Chivharo chekuongorora umo dhisiki inotenderera yakakomberedza pini yepini pachigaro chevhavha.Iyo butterfly cheki vharafu ine chimiro chakareruka uye inogona chete kuiswa pahorizontal pombi, isina kusaina kuita chisimbiso.
3. In-line check valve: valve ine disc inotsvedza pamwe chete nechepakati pemuviri wevhavha.In-line cheki vharafu rudzi rutsva rwevharuvhu.Idiki muhukuru, yakareruka muhuremu, uye yakanaka mukugadzira tekinoroji.Ndiyo imwe yenzira dzekusimudzira dzecheki mavharuvhu.Asi iyo fluid resistance coefficient yakakura zvishoma pane iyo ye swing check valve.
4. Compression check valve: Iyi valve inoshandiswa sevhavha yekudyisa mvura uye steam yekuvhara valve.Iine basa rakazara rekusimudza cheki vharafu uye yekumisa vharafu kana angle valve.
Mukuwedzera, kune mamwe mavharuvhu ekutarisa asina kukodzera kuiswa kwepombi, zvakadai semakumbo emakumbo, chitubu-akatakura, Y-mhando uye mamwe mavharuvhu ekuongorora.
Maitiro ekushandisa uye maitiro:
Iri vharafu rinoshandiswa semudziyo wekudzivirira kuyerera kwepakati pamapombi emaindasitiri.
Kuiswa kunokosha
Kuiswa kwevhavha yekutarisa kunofanirwa kutarisisa kune zvinotevera zvinhu:
1. Usabvumira kuti cheki valve itakure uremu mupombi.Mavharuvhu makuru ekutarisa anofanirwa kutsigirwa akazvimirira kuitira kuti arege kukanganiswa nekumanikidzwa kunoitwa nepiping system.
2. Paunenge uchiisa, teerera kune kutungamira kwekuyerera kwepakati kunofanirwa kuenderana nekutungamira kwemuseve wakavhoterwa nemuviri wevharuvhu.
3. Kusimudza vertical flap check valve inofanira kuiswa papipeline yakamira.
4. Kusimudza-mhando horizontal flap check valve inofanira kuiswa pahorizontal pipeline.
1. Nheyo yebasa uye tsananguro yechimiro:
Panguva yekushandiswa kwevharuvhu iyi, iyo yepakati inoyerera ikananga kune museve unoratidzwa mumufananidzo.
2. Kana iyo yepakati ichiyerera munzira yakatarwa, jira revhavha rinovhurwa nechisimba chepakati;apo iyo yepakati inoyerera ichidzokera kumashure, nzvimbo yekuvhara yevhavha yevhavha uye chigaro chevhavha yakavharwa nekuda kwehuremu hwevhavha yevhavha uye chiito chekudzoka kwesimba repakati.Kuvhara pamwe chete kuzadzisa chinangwa chekudzivirira chepakati kubva kuyerera kumashure.
3. Iyo yekuvharisa pamusoro pemuviri wevharuvhu uye vharafu clack inotora Stainless simbi pakatarisana welding.
4. Kureba kwemaitiro evhavha iyi kunoenderana neGB12221-1989, uye saizi yekubatanidza flange inowirirana neJB/T79-1994.
Kuchengeta, Kuisa uye Kushandisa
5.1 Migumo yose yevhavhavha inofanira kuvharwa, uye kune imba yakaoma uye ine mhepo.Kana yakachengetwa kwenguva yakareba, inofanira kuongororwa nguva nenguva kudzivirira kuparara.
5.2 Ivhavha inofanira kucheneswa isati yaiswa, uye kukanganisa kunokonzerwa panguva yekufambisa kunofanira kubviswa.
5.3 Panguva yekuisa, unofanira kunyatsotarisa kana zviratidzo uye mazita ezita pavharuvhu zvinosangana nezvinodiwa zvekushandisa.
5.4 Ivhavha inoiswa papiipi yakachinjika ine chivharo chevharuvhu kumusoro.
9. Zvinogoneka kukundikana, Zvinokonzera uye Kubvisa nzira:
1. Kudonha panosangana vharafu muviri nebhoneti:
(1) Kana nut isina kusimbiswa kana kusunungurwa zvakafanana, inogona kugadziriswa zvakare.
(2) Kana pane kukuvara kana tsvina pane flange yekuisa chisimbiso chepamusoro, nzvimbo yekuisa chisimbiso inofanira kuchekwa kana tsvina inofanira kubviswa.
(3) Kana iyo gasket yakakuvadzwa, inofanira kutsiviwa neimwe itsva.
2. Kudonha panzvimbo yekuvharisa kwevhavha clack uye chigaro chevharuvhu
(1) Pane tsvina pakati penzvimbo dzekuvhara, iyo inogona kucheneswa.
(2) Kana nzvimbo yekuisa chisimbiso yakakuvadzwa, gadzira zvakare kana kudzorera uye kugadzirisa.
Nguva yekutumira: Sep-24-2021