Valve pressure test leakage bvunzo uye nzira yekushanda vharafu dunhu share chinzvimbo

Valve pressure test leakage bvunzo uye nzira yekushanda vharafu dunhu share chinzvimbo

Apo pombi inotanga kushandiswa, kune tsvina yakawanda yemukati, iyovharafu inogona kuvhurwa zvishoma, kuyerera kwepamusoro-kumhanya kwepakati kunogona kushandiswa kuisuka, uyezve kuvharwa zvinyoro nyoro (kwete nekukurumidza kuvharwa, kunotyisa kuvharwa, kudzivirira kusvibiswa kwasara kubva pakusunga chisimbiso chepamusoro), kuvhura zvakare, saka yakadzokororwa akawanda. nguva, geza tsvina, uye wozoisa mubasa rakajairika. Kazhinji kuvhura vharuvhu, panogona kunge paine tsvina pachisimbiso chepamusoro. Pakuvhara, nzira iri pamusoro inofanirawo kushandiswa kuishambidza yakachena, uye wobva wavhara zviri pamutemo. Kana handwheel uye mubato zvakakuvadzwa kana kurasika, zvinofanira kupedzwa pakarepo, uye havagoni kutsiviwa ne movable ndiro maoko, kuitira kuti kukuvadza hunde quartet, kuvhura uye kuvhara hakushandi, zvichiita tsaona mukugadzirwa.
Nzira yekushanda yevhavha
Kune mavharuvhu, kwete chete inofanira kukwanisa kuisa nekuchengetedza, asiwo kushanda.
(a) manual valve kuvhura nekuvhara
Manual valve ndiyo inonyanya kushandiswa vharafu, vhiri reruoko kana mubato, wakagadzirwa zvinoenderana neakajairika manpower, tichifunga nezvekuisa chisimbiso pamusoro pesimba uye inodiwa yekuvhara simba. Saka haugone kushandisa refu lever kana refu spinner. Vamwe vanhu vakajaira kushandisa chipanera, vanofanira kunyatsotarisisa, kwete simba rakawandisa, zvikasadaro nyore kukuvadza nzvimbo yekuisa chisimbiso, kana ndiro yakatyoka vhiri reruoko, mubato.
Vhura uye uvhare valve, simba rinofanira kunge rakatsetseka, kwete kukanganisa. Kumwe kuvhurika nekuvharwa kweiyo high pressure valve zvikamu zvakafunga nezve simba rekuita uye general valve haigone kumirira. Nokuda kwevhavha yemhepo, isati yazarura, inofanira kupiswa mberi uye mvura yakasvibiswa inofanira kubviswa. Pakuvhura, inofanira kunge ichinonoka sezvinobvira kudzivirira chiitiko chekurova kwemvura.
Kana vharuvhu yakazaruka zvakakwana, handwheel inofanira kudzoserwa zvishoma, kuitira kuti tambo pakati pesimba, kuitira kuti irege kusunungura kukanganisa. Pamavharuvhu e-pole-stem, rangarira pakamira dzinde kana rakavhurika zvakazara uye rakavharwa zvakazara, kudzivirira kurova kwepamusoro pakafa pakavhurika zvakazara. Uye zviri nyore kutarisa kana zvakajairika kana yakavharwa zvizere. Kana vharafu ikadonha, kana pakati pechisimbiso che spool chakamisikidzwa marara makuru, nzvimbo yehunde inoshanduka kana yakavharwa zvakazara.
Apo pombi inotanga kushandiswa, kune tsvina yakawanda yemukati, valve inogona kuvhurwa zvishoma, kuyerera kwepamusoro-kumhanya kwepakati kunogona kushandiswa kuishambidza, uye zvinyoronyoro yakavharwa (kwete yakavharwa nokukurumidza, inotyisa yakavharwa, kudzivirira. tsvina yakasara kubva pakusunga nzvimbo yakavharwa), vhura zvakare, saka inodzokororwa kakawanda, geza tsvina, wozoisa mubasa ramazuva ose. Kazhinji kuvhura vharuvhu, panogona kunge paine tsvina pachisimbiso chepamusoro. Pakuvhara, nzira iri pamusoro inofanirawo kushandiswa kuishambidza yakachena, uye wobva wavhara zviri pamutemo. Kana handwheel uye mubato zvakakuvadzwa kana kurasika, zvinofanira kupedzwa pakarepo, uye havagoni kutsiviwa ne movable ndiro maoko, kuitira kuti kukuvadza hunde quartet, kuvhura uye kuvhara hakushandi, zvichiita tsaona mukugadzirwa.
Imwe yepakati, inotonhorera mushure mevhavha yakavharwa, kuitira kuti zvikamu zvevhavha zvidzike, mufambisi anofanira kuvharwa zvakare panguva yakakodzera, kuitira kuti nzvimbo yekuisa chisimbiso irege kusiya musono wakanaka, kana zvisina kudaro, iyo yepakati kubva kune yakanaka seam yakakwirira- kukurumidza kuyerera, zviri nyore kushambidza nzvimbo yekuisa chisimbiso. Panguva yekushanda, kana zvikaonekwa kuti kushanda kwakanyanyisa, chikonzero chinofanira kuongororwa. Kana kurongedza kwakanyanyisa, inogona kunyatsosununguka, yakadai sevhavha stem skew, inofanira kuzivisa vashandi kuti vagadzirise. Mamwe mavharuvhu, munzvimbo yakavharwa, zvikamu zvakavharwa zvinopisa kuwedzera, zvichikonzera kuvhura matambudziko; Kana ichifanira kuvhurwa panguva ino, chivharo chinogona kusunungurwa hafu yedenderedzwa kune denderedzwa kubvisa hunde kunetseka, uye ipapo ndiro kuti utange vhiri.
(2) Nyaya dzinoda kutarisirwa
1, 200 ℃ pamusoro peiyo tembiricha yevharuvhu, nekuda kwekuiswa pane tembiricha yekamuri, uye mushure mekushandisa kwakajairika, tembiricha inokwira, bhoti yekuwedzera kupisa, gap kuwedzera, saka inofanira kuomesa zvakare, inonzi "hot tight", vashandisi vanofanirwa kuterera kune izvi. shanda, neimwe nzira inogona kudonha.
2. Kana mamiriro okunze achitonhora, valve yemvura inofanira kuvharwa kwenguva yakareba, uye mvura inofanira kubviswa mushure mevhavha. Steam vharafu mushure meutsi, zvakare unoda kusabvisa condensate. Pazasi pevhavha ine silky uye inogona kuvhurwa kuti ibude.
3, mavharuvhu asina-simbi, mamwe akaoma uye akaputika, mamwe simba rakaderera, kushanda, kuvhurika uye kuvhara simba hakugoni kuva hombe, kunyanya haigoni kuita simba rakasimba. Uyewo chenjerera kuti usagogodza zvinhu.
4, kana vheji itsva inoshandiswa, iyo kurongedza haifaniri kuomeswa zvakasimba, kuitira kuti irege kudonha, kuitira kuti usamanikidzira tsinde zvakanyanya, kukurumidza kupfeka, uye zvakaoma kuzarura nekuvhara.
Valve pressure test leakage test
Muedzo wepressure (pressure test) zvinoreva kuyedza simba remuviri. Leakage bvunzo, inoreva iyo yekuvharisa pamusoro tightness bvunzo, iyi miviri bvunzo ndeyekutarisa huru valve kuita. Iyo yekuyedza yepakati inowanzove yakajairika tembiricha mvura, uye parafini inogona kushandiswa kune yakakosha mavharuvhu. Chengetedzo vharafu inogara ichimanikidza bvunzo, inogona kushandisa nitrogen yakagadzikana gasi, zvakare inogona kushandisa chiutsi kana mweya panzvimbo. Pamavharuvhu e diaphragm, edza nemhepo.
(1) test pressure
Valve simba rekuyedza kudzvanywa, uye kudzvanywa kwezita kune hukama hunotevera
Nominal pressure (Mpa) simba test pressure (Mpa0.10.20.250.40.40.60.60.911.51.62.42.53.8466.49.610151624203025383248 nekuona, nominal pressure kubva ku0.4 Mpa simba rinoshandiswa kubva ku0.4 Mpa - 3 Mpa simba rinoshandiswa. nguva. Valve seal test pressure, yakaenzana nedzvinyiriro yezita.
(2) Nzira dzekuedza
Kudzvanya bvunzo uye kuvuza bvunzo kunoitwa pabhenji rekuyedza. Chimiro chebhenji rekuyedza (sezvinoratidzwa muMufananidzo 5-1) ndechekuti pane chikamu chinotsikirira pamusoro pebhenji rekuyedza uye pombi yakabatana nepombi yekumanikidza pazasi. Mushure mokunge vharuvhu ichidzvinyirirwa, pombi yekuedza test inoshanda. Kubva pane gauji yekumanikidza yepombi yekumanikidza test, valve inogona kuverengerwa nhamba yekumanikidza. Kana iyo yekumanikidza test valve inozadza nemvura, mhepo iri muvhavha inofanira kudonhedzwa. Iyo yekumanikidza ndiro iri kumusoro kwebhenji rekuyedza ine gomba rekuburitsa uye inovhurwa uye yakavharwa nevhavha diki. Chiratidzo chekuti mhepo yacheneswa ndechekuti mvura yese inobuda mumhepo. Mushure mekuvhara mhepo, tanga kuwedzera kudzvinyirira. Iyo yekusimudzira maitiro inofanirwa kunonoka, kwete kupinza. Mushure mekusvika kune yakataurwa kudzvanywa, chengeta kwemaminetsi matatu, kudzvanywa hakuve kwakakodzera.
Pressure test leak test process inogona kukamurwa kuita matanho matatu:
1, vhura nzira yevharuvhu, zadza gomba revharuvhu nemvura (kana parafini), uye wedzera kudzvanywa kune simba rekuyedza zvinodiwa, tarisa muviri wevharuvhu, chivharo chevhavha, gasket, kurongedza kuti ibude.
2, kuvhara mugwagwa wevhavha, kumanikidza kune rumwe rutivi rwevhavha kusvika kune zita rekumanikidza, tarisa kana pane kubuda kubva kune rumwe rutivi.
3. Shandura vharafu pasi uye edza kune rumwe rutivi.
Valve redunhu mugove wekuisa vharafu yekugadzira base kupfuura chii?
Shamwari dzakawanda dzave dzakavhiringika pane kusaziva izvo vagadziri kuti vawane mavharuvhu, chii mhando, uko kunaka kuri nani, vamwe vanhu vakati Shanghai, vamwe vanhu vakati Zhejiang, vamwe vanhu vakati Jiangsu, xiaobian mumotokari inoremekedza.
Mavharuvhu akasiyana uye kune nhamba yakakurumbira mhando yevharuvhu inodarika zviuru zvisere, uye imwe 5 haina manhamba, ine akawanda akagadzirirwa bhizinesi, ane akawanda akarongedzerwa rimwe purojekiti, kwete * * * inoshandiswa ne musika, asi chikamu chidiki chinobviswa, nguva dzose taura zvakawanda, inyonganiso, zvakananga kusvika pakuti isu, Izvo zvinotevera zvirimo zvinongori kona yekumusoro, nhamba dzebvudzi remhou, yakadzama kana kushanya mumunda, shandisa zvakanaka. (kumwe kutsanangurwa kwakadzama kwemhando uye mabhureki edunhu ndapota teerera kune chinotevera chinyorwa). Pazasi isu tichaongorora vagadziri vakuru vakatenderedza kugadzika kwevharuvhu uye mumusika werondedzero, iyo data yakavakirwa pahuwandu hweNational Bureau of Statistics (vagadziri vane marezinesi ekugadzira, huwandu hwekutengesa uye wepagore mutero mhedzisiro mhedzisiro).
Valve market share ranking:
Zhejiang: 53%
1. Oubei Town, Yongjia County, Wenzhou: 23% (yakajairika mavharuvhu, akakanda simbi mavharuvhu, American mwero mavharuvhu, etc.)
2, Wenzhou Longwan Dunhu: 15% (yakaderera-magumo mavharuvhu, Stainless simbi mavharuvhu, nezvimwewo)
Yuhuan County: 6% (mavharuvhu emhangura, nezvimwewo)
Ningbo: 2.5% (mavharuvhu epurasitiki, mavharuvhu emhangura, nezvimwewo)
Lishui: 2% (akakanda simbi mavharuvhu, American standard mavharuvhu, etc.)
Hangzhou: 1.5% (inodzora vharafu, nezvimwewo)
Yueqing: 0.5% (Marine mavharuvhu, nezvimwewo)
Zhuji Guta: 0.5% (mavharuvhu emhangura, zvishongedzo zvemoto, nezvimwewo)
Yuyao: 0.5% (solenoid valve)
Yasara 1% (Ruian, Tongxiang, Taizhou)
Yancheng Guta, Jiangsu Province: 12.5% ​​(joint venture valve, instrument valve, hydraulic valve, high pressure valve, nezvimwewo)
Shanghai: 7% (mavharuvhu anounzwa kunze kwenyika, ** mavharuvhu, magetsi echiteshi mavharuvhu, otomatiki control mavharuvhu, nezvimwewo)
Tianjin: 5% (yakaderera vharafu, yakapfava seal butterfly valve, nezvimwewo)
Guangdong Province: 4% (joint venture valves, nezvimwewo)
Fujian Province: 2.5% (ductile iron mavharuvhu, mavharuvhu emoto, mavharuvhu emvura, nezvimwewo)
Henan Guta: 2% (yakaderera mavharuvhu, simbi yakakandwa, ductile iron mavharuvhu, nezvimwewo)
Beijing: 2% (yakakwirira mavharuvhu, nezvimwewo)
Zigong, Sichuan province: 1% (high pressure valves, power station valves, nezvimwewo)
Shandong Province: 1% (mavharuvhu emoto, mavharuvhu emoto, nezvimwewo)
Hebei Province: 1% (simbi yakakandwa, ductile iron mavharuvhu, nezvimwewo)
Chongqing maneja: 0.5% (solenoid valve, nezvimwewo)
Zvimwe: 9%
Nhamba dziri pamusoro dzakakamurwa zvichienderana nehuwandu hwemabhizinesi, kutengesa, uye huwandu hwechigadzirwa. Kana paine kutsauka, ndapota tarisa kune chaiyo mamiriro.