Vharuvhu yeWedge Gate: Gwaro reUnyanzvi reMainjiniya & Kutenga

1. Chii chinonzi Resilient Wedge Gate Valve?

Vharuvhu yegedhi resilient wedge inhengo yepamusoro yevharuvhu yegedhi re wedgemhuri. Chinhu chikuru chayo ndechekuti dhisiki regedhi rakafukidzwa zvizere kana kuti rakagadzirwa nechinhu chinonamira (kazhinji rabha reEPDM) pachinzvimbo chedhizaini yechinyakare yesimbi yese. Chivakwa ichi chakagadzirirwa kupa chisimbiso chekuvhara mativi maviri chakavimbika uku uchidzivirira matambudziko akajairika ekushandisa torque yakawanda anowanikwa mumavharuvhu egedhi akagadzika.

Kusiyana nemavharuvhu egedhi resimbi, gedhi revharuvhu regedhi resimbi rinowanzova muviri wesimbi wakagadzirwa nesimbi ine rabha yeEPDM yakaputirwa zvakakwana inosangana nezvinodiwa nemvura yekunwa. Painovhara, rabha resimbi rinobatana nechigaro chemuviri wevharuvhu, pane kubatana nesimbi yakasimba nesimbi. Kubva kuma1980, mavharuvhu egedhi resimbi rakasimba ave sarudzo huru mukugadzirisa nekugovera mvura, kunyanya kune saizi dzinosvika kuDN600. Nhasi, vagadziri vanotungamira vakawedzera huwandu hwesimbi kusvika kuDN1000 kana kunyange DN1200.

Kukosha kwekutenga: Mavharuvhu egedhi resimbi akasimba anopa mabhenefiti akasiyana mukuwanikwa kwemvura, kuyerera kwemvura uye kurapwa kwemvura yakasviba. Nzvimbo yekuvharira rabha inodzivirira kupera simba kubva muzvinhu zvidiki zviri mukati, uye haadi kuputirwa kwakanyatsonaka kwesimbi, nokudaro zvichideredza mari yekugadzira nekugadzirisa.

2. Vharuvhu yeWedge Gate Inoshanda Sei?

Vharuvhu yegedhi re wedge ivharuvhu inotenderera kakawanda: hunde yayo inotyaira gedhi nekufamba kwakatenderedzwa neshinda. Gedhi rinofamba rakanangana negwara rekuyerera.

Kutevedzana kwekushanda:

1.Kuvhara: Kana vhiri reruoko kana kuti actuator zvatenderedzwa newachi, hunde yacho inofambisa gedhi pasi. Mativi maviri ekuvhara egedhi rakaita sewedge akagadzirwa nepamusoro pakobvu nepasi patete. Gedhi parinodzika muzvigaro zvemuviri, nzvimbo dzewedge dzinogadzira chiito chekumanikidza pakati pezvigaro. Chiito ichi chinoshandura simba rekushanda re axial kuita radial sealing pressure, zvichiita kuti pave nekuvharwa kwakasimba. Iri imhando ye force sealing - simba rekuvhara rinonyanya kubva ku external actuation, kwete kubva ku line pressure.

2.Kuvhura: Hunde yacho inotenderera ichienda kune rimwe divi, ichisimudza gedhi kubva pazvigaro uye ichivhura zvizere nzira yekuyerera. Kana yakavhurwa zvizere, vharuvhu yegedhi inopa nzira yakatwasuka, isina kuvharwa uye inodzivirira mvura zvishoma, uye inobvumira kupfuura kwepipeline pigs.

3.Hunhu hwekushanda: Nekuti tsinde inoda kutenderera kakawanda kuti ipedzise kutenderera kwakazara, mavharuvhu egedhi anovhurika uye anovhara zvishoma nezvishoma. Hunhu uhwu hunobatsirawo kudzivirira migumisiro yehammer yemvura.

Chinyorwa chakakosha: Mavharuvhu egedhi reWedge akagadzirirwa kushanda akavhurika kana kuvharwa zvizere. Haafanirwe kushandiswa semavharuvhu anovhurika. Gedhi rakavhurika zvishoma richakanganiswa nemvura uye kukanganiswa, izvo zvinogona kukuvadza zviso zvekuvhara uye kukonzera kudedera neruzha.

3. Kupatsanurwa kwemavharuvhu eWedge Gate

Mavharuvhu egedhi reWedge anogona kupatsanurwa zvichienderana nezvinodiwa zvakasiyana:

3.1 Nekuvaka Gate Disc

Pakati peizvi, dhizaini ye wedge inochinjika inosanganisa zvakanakira madhisiki akaomarara neaviri uye ndiyo inonyanya kushandiswa pari zvino mumavharuvhu egedhi ane madziro ari pakati nepakati kusvika pakukura.

3.2 Nekugadzika kweStem

• Hunde inokwira (sikuruu nejoko rekunze)- Hunde yacho inofamba ichikwira nekudzika nekushanda, zvichiratidza nzvimbo yevharuvhu.

•Hunde isingasimuki (sikuruu yemukati)– Hunde yacho inotenderera isina kufamba neaxial; nzungu yacho inokwira nekudzika. Yakakodzera kushandiswa isina hurefu hwakaganhurirwa hwekuisirwa.

3.3 Nekushandisa Nzira Yekuita

Manual, emagetsi, pneumatic, hydraulic, nezvimwewo.

3.4 Nerudzi rwekubatanidza

Yakaputirwa, kusundira matako, rudzi rwewafer, nezvimwewo.

4. Musiyano uripo pakati peWedge Gate Valve neParallel Gate Valve

Mavharuvhu egedhi akakamurwa kuita mhando dze wedge neparallel zvichienderana ne geometry yegedhi. Misiyano yavo mikuru ndeiyi:

Gwaro rekusarudza: Sarudza mavharuvhu egedhi re wedge kana zvichidikanwa kuvimbika kwakanyanya uye kuvharwa kwemativi maviri. Kune steam inopisa zvakanyanya, boiler feedwater kana mamwe mabasa ane frequency thermal cycling, mavharuvhu egedhi anoenderana neparallel haadi thermal wegging uye inogona kunge iri sarudzo iri nani.

5. Maitiro Ekugadzira Mavharuvhu Egedhi Rewedge Anoshanda

Kugadzira, kugadzira uye kuyedza mavharuvhu egedhi re wedge kunofanirwa kutevedzera mitemo yehunyanzvi yakaoma. Mitemo iyi inovimbisa mhando, kuchinjana uye kuchengetedzeka. Mitemo mikuru yemuno neyekunze kwenyika yakapfupikiswa pazasi kuti ishandiswe nevashandi veinjiniya nevanotenga panguva yekusarudza nekugamuchira.

5.1 Mitemo yeNyika yeChina (GB) neIndasitiri (JB)

Pamusika wemuno,Mavharuvhu eGedhi reWedgekazhinji vanotevedzera mitemo iyi:

Kare, JB/T 1739‑1992 (“Zvimiro zvemavharuvhu - Nzvimbo yezvigaro uye saizi yekona yewedge yemavharuvhu egedhi rewedge”) yainyatsotarisa makona ewedge, asi yakabviswa muna 2005. Nhasi, kusarudzwa kwekona yewedge kunoenderana nemaitiro emugadziri wega wega uye mamiriro chaiwo ebasa.

5.2 Mitemo Yepasi Pose (API, ASME, AWWA, nezvimwewo)

Kune mapurojekiti ekutumira kunze kwenyika kana magadzirirwo emhando yeAmerican, zviyero zvinotevera zvinowanzo shandiswa:

5.3 Mitemo Yakatsaurirwa yeMavharuvhu Egedhi Resilient Wedge (Indasitiri yeMvura)

Panyaya yekuwanikwa kwemvura uye kuyerera kwemvura, sangano reAmerican Water Works Association (AWWA) rakagadzira nhevedzano yakatsaurirwa:

•ANSI/AWWA C509- Standard yemavharuvhu egedhi akasimba (3 in. uye akakura, anosvika 250 psig). Inotsanangura zvinodiwa zvekuvhara zvakasimba (kunamatira zvichienderana neASTM D429), stem seals, bidirectional bubble-tight shut-off, nezvimwewo.

•ANSI/AWWA C515- Yakajairika yemavharuvhu egedhi ane dhayamita hombe (anowanzoita 4 in. uye pamusoro) ane ductile-iron resilient wedge gate, ane ukobvu hwakasimba hwemadziro uye zvinodiwa nezvinhu.

•AWWA C111/A21.11– Standard yemajoini ane rabha (emakanika uye epush-on), inoshanda kune kubatanidza kwemagetsi.

5.4 Mimwe Mipimo Yakakodzera

5.5 Pfungwa Huru dzeKutenga neKugamuchira

Pakusarudza nekugamuchira mavharuvhu egedhi re wedge, vashandi vekutenga vanofanira kuongorora zvinotevera zvinodiwa pakutevedzera mitemo:

1.Kusimbiswa kwechimiro chedhizaini– Iva nechokwadi chekuti vharuvhu yakagadzirwa zvinoenderana neshanduro chaiyo (semuenzaniso, GB/T 12234, API 600 kana AWWA C509) yebasa raunoda.

2.Chimiro chechiso nechiso– Simbisa kuti kureba kwevharuvhu kunoenderana neGB/T 12221 kana ASME B16.10 kuti ive nechokwadi chekuti inogona kuchinjaniswa panzvimbo yacho.

3.Kuenderana kweFlange– Simbisa kuti flange standard (JB/T 79, GB/T 9113, ASME B16.5, nezvimwewo) inoenderana nehurongwa hwemapaipi.

4.Ongororo yemushumo webvunzo- Kumbira mishumo yekuyedzwa kwefekitori zvichienderana neJB/T 9092 kana API 598, kusanganisira simba reganda, chigaro chekumashure, uye mhedzisiro yekuyedzwa kwekubuda kwemvura pachigaro.

5.Zvitupa zvekushandisa- Kuti uwane mavharuvhu egedhi re wedge akasimba, tora chitupa cheEPDM coating material uye mishumo yekuyedza kunamira.

6.Kuongorora zviratidzo– Simbisa kuti chiratidzo chemuviri wevharuvhu chinosangana nezvinodiwa zveGB/T 12220 (mugadziri, saizi, zvinhu, kirasi yekumanikidza, nezvimwewo).

6. Chii chinonzi Wedge Angle yeWedge Gate Valve?

Kona ye wedge ndeimwe yematanho akakosha ekugadzira mavharuvhu egedhi re wedge, zvichikanganisa zvakananga kuvimbika kwechisimbiso, torque yekushanda uye kuchinjika kwetembiricha.

6.1 Maitiro Akafanana Emakona EWedge

Kona iri pakati pechiso chega chega chekuvhara nepakati penzira yakatwasuka (kureva, kona yewedge) inowanzo sarudzwa kubva pane zvinotevera:

•2°52′
•3°30′
•5° (yakajairika)
•8°
•10°

Pakati peizvi, 5° ndiyo inonyanya kushandiswa. Vharuvhu yegedhi yakafanana inogona kutorwa sekesi yakakosha ine kona ye0° wedge.

6.2 Zvinhu Zvinokanganisa Kusarudzwa kweAngle yeWedge

Kona ye wedge inonyanya kutsamira pakupisa kwekushanda kwechinhu chepakati:

•Kana tembiricha yakakwira, kona inofanira kukura - izvi zvinoderedza njodzi yekubatana kwekupisa (kubatanidza) nekuda kwekuwedzera kwekupisa kwegedhi.

•Kune tembiricha yakaderera, kona diki yakaita se2°52′ inowanzo sarudzwa.

•Kune mabasa ekupisa kwakanyanya, maangle akakura (5°, 8° kana kunyange 10°) ndiwo anonyanya kufarirwa.

6.3 Nheyo dzekugadzira dzeWedge Angle

Kona ye wedge haisi yekufungidzira. Chimiro che wedge chakagadzirirwa kuwedzera kumanikidzwa kwe sealing yemakanika kana vharuvhu yavhara. Kona diki inogadzira simba guru re radial sealing rekufamba kwakafanana kwe axial, zvichipa kuvharwa kwakavimbika, asi inoda kunyatsogadzirwa uye inonyanya kukanganiswa ne thermal wedging. Kona yakakura, zvakasiyana, inobvumira kushanda kwakapfava uye njodzi shoma yekubatanidza, asi inoda stroke refu yekuvhara kuti igadzire simba rakafanana re sealing.

Sezvambotaurwa, standard yakasarudzika JB/T 1739‑1992 yakabviswa muna 2005. Parizvino, kusarudzwa kwekona ye wedge kunoenderana nemitemo yekugadzira yemugadziri wega wega uye mamiriro chaiwo ebasa.

7. Zvimwe Zvinodiwa Neveinjiniya Nevanotenga Zvinhu

7.1 Zvakajairika zveMagadzirirwo eUnyanzvi eMavharuvhu eGate Resilient Wedge

•Kuongororwa kwekumanikidzwa: Zvakajairika ndeizvi: PN16 (16 bar), 200 psi (13.8 bar) CWP, 300 psi (20.7 bar), nezvimwewo.

•Tembiricha yekudziya: Mhando dzerabha dzinogara dzakaganhurirwa kubva pa -10°C kusvika +130°C; mhando dzesimbi dzinogara dzakaganhurirwa dzinogona kukwira tembiricha.

•Saizi yehukuru: DN50 kusvika DN1000+.

•Zvinhu zvemuviri: Simbi yakakandwa, simbi yakapfava, nezvimwewo.

•Kuvhara zvinhu: rabha yeEPDM (yemhando yemvura yekunwa).

7.2 Mabhenefiti Akakosha Emavharuvhu Egedhi Akasimba

•Zero yemativi maviriKudzima mvura inobuda - jira rerabha rinoita kuti mvura ivharwe zvakasimba.

•Torque yakaderera yekushanda- kukweshana kwerabha kunopesana nesimbi kwakaderera zvikuru pane simbi kuenda kusimbi.

•Hapana kunamira- wedge yakasimba inogona kuchinja zvishoma, saka haipindi muzvigaro sewedge yakasimba.

•Hupenyu hwebasa refu- zvinhu zvakasimba zvinoderedza kupera kwezviso zvinovhara.

7.3 Mazano Ekutenga

1. Enzanisa mamiriro ebasa- Sarudza kona yakakodzera ye wedge zvichibva pakupisa kuri pakati nepakati; kana uchishandisa tembiricha yepamusoro, funga nezvemagadzirirwo e wedge anochinjika kana magadzirirwo egedhi akafanana.

2. Kutevedzera mitemo- Simbisa kuti chigadzirwa ichi chinosangana nezvinodiwa zvakaita se EN 1074, BS 5163, AWWA C550, nezvimwewo.

3. Dziviriro yengura– Tarisa kuputira kwemukati nekunze (semuenzaniso, upfu hwe epoxy hwakasungirirwa - FBE).

4. Rudzi rwekushanda– Sarudza simbi inokwira/isiri kukwira, yemaoko/yemagetsi/yepneumatic actuator zvichienderana nezvinodiwa panzvimbo.

Mavharuvhu eGedhi reWedgendiwo mamwe emavharuvhu ekudzivirira anoshandiswa zvakanyanya mumasisitimu emapaipi. Kusarudzwa kwawo kunosanganisira kufunga zvakawanda nezvehunyanzvi, kusanganisira dhizaini yekuvhara, sarudzo yekona yewedge, kuenderana kwezvinhu uye kutevedzera mitemo yakajairwa. Tinovimba kuti chinyorwa chino chinopa ruzivo rwakakosha kune vese mainjiniya nenyanzvi dzekutenga mukusarudza mapurojekiti avo uye sarudzo dzekutenga.