Varuvhu yegedhi ivharuvhu umo nhengo inovhara (gedhi) inofamba ichidzika nepakati pemugero.Ivhavha yegedhi inogona kushandiswa chete kuvhura kuzere uye kuvhara kwakazara mupombi, uye haigone kushandiswa kugadzirisa uye kupuruzira.Gedhi vharafu ivharuvhu ine huwandu hwakawanda hwekushandisa.Kazhinji, inoshandiswa pakucheka michina ine dhayamita yeDN ≥ 50mm, uye dzimwe nguva mavhavha emagedhi anoshandiswawo pakucheka michina ine madhayamita maduku.
Chikamu chekuvhura nekuvhara chevhavha yegedhi ndiro gedhi, uye mafambiro ekufamba kwegedhi ari perpendicular kune kutungamirirwa kwemvura.Ivhavha yegedhi inogona chete kuvhurwa zvakakwana uye yakavharwa zvakakwana, uye haigoni kugadziriswa kana kuputika.Gedhi rine nzvimbo mbiri dzekuisa chisimbiso.Nzvimbo mbiri dzekuvharisa dzeinonyanya kushandiswa patani yevharuvhu yegedhi inoumba chimiro cheweji.Wedge angle inosiyana nemaparameter evharuvhu, kazhinji 50, uye 2°52' kana tembiricha yepakati isiri yakakwirira.Gedhi revhavha yegedhi rejeri rinogona kuitwa rose, iro rinonzi gedhi rakaoma;inogonawo kugadzirwa gedhi rinogona kuburitsa diki deformation yekuvandudza manufacturability uye kubhadhara kutsauka kweiyo chisimbiso chepamusoro angle panguva yekugadzirisa.Ndiro inonzi elastic gedhi.Gedhi vharafu ndiyo huru yekudzora midziyo yekuyerera kana kuendesa vhoriyamu yehupfu, zviyo, zvinhu zvegranular uye chidimbu chidiki chechinhu.Inoshandiswa zvakanyanya musimbi, migodhi, zvekuvaka, zviyo, indasitiri yemakemikari uye mamwe maindasitiri kudzora kuyerera kwekuchinja kana kucheka nekukurumidza.
Mavharuvhu egedhi anonyanya kureva mhando dzesimbi dzakakandwa mavharuvhu egedhi, ayo anogona kukamurwa kuita wedge gedhi mavharuvhu, akafanana gedhi mavharuvhu, uye wedge gedhi mavharuvhu zvinoenderana nekumisikidzwa kwenzvimbo yekuisa chisimbiso.Gedhi vharafu inogona kukamurwa kuva: imwe gedhi mhando, kaviri gedhi mhando uye elastic gedhi mhando;parallel gedhi vharafu inogona kukamurwa kuva imwe gedhi mhando uye mbiri gedhi mhando.Zvinoenderana nenzvimbo yeshinda yehunde yevharuvhu, inogona kupatsanurwa mumhando mbiri: inokwira stem gedhi vharafu uye isiri-kusimuka stem gedhi vharafu.
Kana gedhi revhavha rakavharwa, nzvimbo yekuisa chisimbiso inogona kuiswa chisimbiso chete nekumanikidza kwepakati, ndiko kuti, kuvimba nekumanikidza kwepakati kudzvanya nzvimbo yekuisa chisimbiso cheplate regedhi kune chigaro chevhavha kune rumwe rutivi kuti ive nechokwadi chekuisirwa chisimbiso. yekuisa chisimbiso pamusoro, iko kuzvisimbisa.Yakawanda yevhavha yegedhi inomanikidzirwa chisimbiso, ndiko kuti, kana vheji yakavharwa, gedhi rinofanira kumanikidzirwa kuchigaro chevhavha nechisimba chekunze, kuitira kuti kuve nechokwadi chekuvhara chisimbiso chepamusoro.
Gedhi revharuvhu regedhi rinofamba mumutsara wakatwasuka nedzinde revharuvhu, iro rinonzi rinosimudza stem vharafu yegedhi (inonziwo rising stem gedhi vharafu).Kazhinji pane trapezoidal tambo pane inosimudza, uye kuburikidza nenati iri pamusoro pevhavha uye gwara regirovha pamutumbi wevharuvhu, kufamba kunotenderera kunoshandurwa kuita mutsara wakatwasuka, kureva kuti, torque yekushandisa inoshandurwa. mukuita oparesheni.
Kana iyo valve yakavhurwa, kana kukwidziridzwa kweplate yegedhi kwakaenzana ne1: 1 nguva yevhavha yevhavha, nzira yemvura yakavharwa zvachose, asi nzvimbo iyi haigoni kuongororwa panguva yekushanda.Mukushandiswa chaiko, nhongonya yehunde yevharuvhu inoshandiswa sechiratidzo, ndiko kuti, nzvimbo iyo dzinde yevharuvhu isingafambi inotorwa senzvimbo yayo yakazaruka zvizere.Kuti utarise chiitiko chekuvhara nekuda kwekushanduka kwekushisa, kazhinji kuvhurika kune chinzvimbo chepamusoro, uye wozodzokera kumashure 1/2-1 kutendeuka, seyakavhurika yakazara valve nzvimbo.Nokudaro, nzvimbo yakazaruka yakakwana yevhavha inotarirwa nechinzvimbo chegedhi (kureva, sitiroko).
Mune mamwe mavharuvhu egedhi, stem nut inoiswa paplate yegedhi, uye kutenderera kwevhiri reruoko kunofambisa tsinde yevharuvhu kutenderera, uye ndiro yegedhi inosimudzwa.Rudzi urwu rwevharuvhu inodaidzwa kuti rotary stem gedhi vharafu kana vharafu regedhi rakasviba.
Zvimiro zveGedhi Valve
1. Chiedza chechiedza: muviri mukuru wakagadzirwa nepamusoro-grade nodular black cast iron, iyo inenge 20% ~ 30% yakareruka kupfuura mavharuvhu emagedhi echinyakare, uye iri nyore kuisa nekuchengetedza.
2. Pasi pe-elastic seat-sealed gedhi valve inotora dhizaini yakafanana-yakadzika-pasi seiyo yemuchina wepombi yemvura, iyo isiri nyore kuita kuti marara aunganidzwe uye inoita kuti mvura inoyerera irege kudziviswa.
3. Integral rubber covering: gondohwe rinotora rabha repamusoro-soro remukati nekunze rakavhara rerabha.Tekinoroji yekuEurope yekutanga-kirasi yerubha vulcanization inoita kuti gondohwe rakanyungudutswa rive nechokwadi chekukura kwejometri, uye gondohwe rerabha nenodular cast zvakasungwa zvakasimba, izvo zvisiri nyore Kudeura kwakanaka uye elastic memory.
4. Precision cast valve body: Muviri wevharuvhu wakanyatsokandwa, uye chaiwo geometric dimensions inoita kuti zvikwanise kuve nechokwadi kusimba kwevhavha pasina chero basa rekupedzisa mukati memuviri wevhavha.
Kuiswa uye Kugadziriswa kweGedhi Mavhavha
1. Mavhiri emaoko, zvibato uye nzira dzekutumira hazvibvumirwi kushandiswa pakusimudza, uye kudhumhana kunorambidzwa zvachose.
2. Ivhavha yevhavha yedhidhi yedhidhi inofanira kuiswa vertically (kureva kuti, tsvina yevhavha iri panzvimbo yakatarisa uye vhiri remaoko riri pamusoro).
3. Ivhavha yegedhi ine bypass valve inofanira kuvhurwa isati yavhura iyo bypass valve (kuenzanisa mutsauko wekumanikidza pakati pekupinda nekubuda).
4. Kune mavharuvhu egedhi ane nzira dzekutumira, dziise zvinoenderana neyakagadzirwa kuraira bhuku.
5. Kana vharafu ichishandiswa kakawanda pairi uye pairi, isa mafuta kanenge kamwe pamwedzi.
Nguva yekutumira: Aug-07-2023