Vavu wamba kuthetsa vuto, kukonza kutsika kwapang'onopang'ono kwa ADAMS vavu yotseka nthawi yokhazikitsa njira

Valve wamba kuthetsa vuto, kukonza kutsika kwapang'onopang'ono ADAMS valavu yotseka kutseka nthawi yokhazikitsa njira 1. Chifukwa chiyani valavu yodulidwa iyenera kusindikizidwa mwamphamvu momwe zingathere? Dulani zofunikira za kutayikira kwa ma valve kuti zitsikeko bwino, kutayikira kwa valavu yosindikizira yofewa ndikotsika kwambiri, kudula zotsatira zake ndizabwino, koma osavala, kudalirika kosadalirika. Kuchokera pakutayikira ndi kakang'ono, kusindikiza komanso kudalirika kawiri, kudulidwa kofewa kuli bwino kuposa kudulidwa kolimba. Monga valavu yoyang'anira kuwala kokwanira, yosindikizidwa ndi yodzaza ndi chitetezo cha alloy chosavala, kudalirika kwakukulu, kuthamanga kwa 10-7, yatha kukwaniritsa zofunikira za valve yodulidwa. 2. Chifukwa chiyani valavu yosindikizira iwiri singagwiritsidwe ntchito ngati valavu yodula? Ubwino wa valavu yokhala ndi mipando iwiri ndi mphamvu yoyendetsera mphamvu, yomwe imalola kusiyana kwakukulu, ndipo kuipa kwake kwakukulu ndikuti malo awiri osindikizira sangakhale ogwirizana nthawi imodzi, zomwe zimapangitsa kuti pakhale kutaya kwakukulu. Ngati agwiritsidwa ntchito mwachisawawa komanso mokakamiza kuti adutse mwambowu, mwachiwonekere zotsatira zake sizili zabwino, ngakhale zitakhala kuti zasintha zambiri (monga valavu yosindikizira kawiri), sizofunika. 3. N'chifukwa chiyani kumakhala kosavuta kuyendayenda pamene valavu ya mipando iwiri ndi yotseguka yaying'ono? Kwa pachimake chimodzi, pamene sing'anga ikutuluka mtundu wotseguka, kukhazikika kwa valve ndikwabwino; Pamene sing'anga imatsekedwa, kukhazikika kwa valve kumakhala kosauka. Valve yapampando iwiri imakhala ndi spool ziwiri, spool yapansi ili mumtsinje wotsekedwa, spool yapamwamba imakhala yotseguka, kotero, mu ntchito yaing'ono yotsegulira, kutuluka kwa mtundu wa spool ndikosavuta kuyambitsa kugwedezeka kwa valve, izi. ndi chifukwa chake valavu yokhala ndi mipando iwiri singagwiritsidwe ntchito potsegula ntchito yaying'ono. 4, ndi ntchito yanji yowongoka yoletsa mavavu yomwe sikuyenda bwino, magwiridwe antchito otsekereza ma valve ndi abwino? Chowongoka chowongoka cha valve spool ndi vertical throttling, ndipo sing'anga ndi yopingasa yolowera mkati ndi kunja kwa chipinda cholowera cha valve iyenera kubwerera mmbuyo, kotero kuti njira yothamanga ya valve imakhala yovuta kwambiri (mawonekedwe monga S-mtundu wopindika). Mwanjira iyi, pali madera ambiri akufa, omwe amapereka danga la mvula ya sing'anga, ndipo m'kupita kwa nthawi, zimayambitsa kutsekeka. Mayendedwe a Angle stroke valve throttling ndi njira yopingasa, sing'anga imalowa ndi kutuluka mopingasa, ndipo ndikosavuta kuchotsa sing'anga yodetsedwa. Panthawi imodzimodziyo, njira yothamanga ndi yophweka, ndipo malo otsetsereka apakati ndi ochepa kwambiri, choncho valve ya Angle stroke imakhala ndi ntchito yabwino yoletsa. 5, chifukwa chiyani tsinde la valve yowongoka ndi yowonda? Vavu yowongoka yowongoka imaphatikizapo mfundo yosavuta yamakina: kukangana kwakukulu kotsetsereka, kukangana kwakung'ono. Molunjika sitiroko valavu tsinde mmwamba ndi pansi kayendedwe, kunyamula pang'ono mbamuikha pang'ono, izo adzaika valavu tsinde wokutidwa zolimba kwambiri, kutulutsa lalikulu kumbuyo kusiyana. Pachifukwa ichi, tsinde la valavu lapangidwa kuti likhale laling'ono kwambiri, ndipo kulongedzako kumagwiritsidwa ntchito kawirikawiri ndi kagawo kakang'ono kamene kakukangana PTFE kulongedza, kuti achepetse kusiyana, koma vuto ndiloti tsinde la valve ndilochepa, losavuta kupindika. , ndipo moyo wonyamula katundu ndi waufupi. Kuti athetse vutoli, njira yabwino kwambiri ndiyo kugwiritsa ntchito tsinde la valavu yoyendayenda, ndiko kuti, kugunda kwa Angle kwa tsinde la valve, tsinde lake la valve ndi 2 ~ 3 nthawi zambiri kuposa tsinde la valve, ndi kusankha kwautali. -Kulongedza kwa ma graphite, kuuma kwa tsinde ndikwabwino, kunyamula moyo ndiutali, torque yolimbana ndi yaying'ono, kusiyana kwakung'ono kobwerera. 6. Chifukwa chiyani kusiyana kwa kuthamanga kwa Angle stroke valve kumakhala kwakukulu? Vuto la mtundu wa valavu yodulidwa ndi lalikulu, chifukwa sing'anga mu spool kapena mbale ya valavu zotsatira zake pa torque yozungulira shaft ndizochepa kwambiri, chifukwa chake zimatha kupirira kusiyana kwakukulu. 7. N’chifukwa chiyani valavu ya m’manja inalowa m’malo mwa valavu imodzi kapena iwiri koma osakwaniritsa cholinga chake? Valve ya manja, yomwe idatuluka m'ma 1960, idagwiritsidwa ntchito kwambiri kunyumba ndi kunja m'ma 1970. Pafakitale ya petrochemical yomwe idayambitsidwa m'ma 1980s, valavu ya manja idakhala ndi chiŵerengero chokulirapo. Panthawiyo, anthu ambiri ankakhulupirira kuti valavu ya manja imatha kusintha valavu imodzi ndi iwiri yokhala ndi mipando yambiri ndikukhala mbadwo wachiwiri wa mankhwala. Masiku ano, izi siziri choncho, valavu ya mpando umodzi, valavu yokhala ndi mipando iwiri, valve ya manja imagwiritsidwa ntchito mofanana. Izi ndichifukwa choti valavu ya manja imangowonjezera mawonekedwe a throttling, kukhazikika ndi kukonza bwino kuposa valavu imodzi yokha, koma kulemera kwake, kutsekereza ndi zizindikiro zowonongeka zimagwirizana ndi valavu imodzi ndi iwiri yokhala ndi mpando, ingasinthe bwanji valavu imodzi ndi iwiri ya mpando. ? Choncho, iyenera kugawidwa. 8. Chifukwa chiyani moyo wautumiki wa sing'anga yamadzi yothira mchere wokhala ndi valavu ya gulugufe ndi valavu ya fluorine yokhala ndi diaphragm uli waufupi? Desalting water sing'anga imakhala ndi asidi otsika kapena alkali, amawononga kwambiri mphira. Kuwonongeka kwa mphira kumadziwika ndi kukulitsa, kukalamba ndi mphamvu zochepa. Kugwiritsa ntchito valavu ya butterfly ndi diaphragm valve yokhala ndi mphira ndikosavuta. Chofunikira ndichakuti mphira sulimbana ndi dzimbiri. Pambuyo mphira akalowa diaphragm valavu ndi bwino kuti dzimbiri kukana fluorine ali mzere diaphragm valavu, koma diaphragm wa fluorine alimbane diaphragm valavu sangathe kuyimirira ndi pansi lopinda ndi wosweka, chifukwa mawotchi kuwonongeka, moyo wa valavu ndi lalifupi. Tsopano njira yabwino ndikugwiritsa ntchito valavu yamadzi yopangira madzi, imatha kugwiritsidwa ntchito kwa zaka 5 mpaka 8. 9, bwanji mu pneumatic valve piston actuator ntchito idzakhala yochulukirapo? Kwa valavu ya pneumatic, pisitoni yoyendetsa pisitoni imatha kugwiritsa ntchito mokwanira mphamvu ya mpweya, kukula kwa actuator ndi yaying'ono kuposa filimuyo, kukakamiza kumakhala kwakukulu, mphete ya O mu pisitoni ndi yodalirika kuposa filimuyo, kotero izo zidzatero. kugwiritsidwa ntchito kwambiri. 10. N’cifukwa ciani kusankha n’kofunika kwambili kuposa kuŵelenga? Kuwerengera ndi kusankha poyerekeza, kusankha ndikofunikira kwambiri, zovuta kwambiri. Chifukwa kuwerengera ndi njira yosavuta yowerengera, yokhayo sikudalira mlingo wa chilinganizo, koma zimadalira kulondola kwa magawo omwe apatsidwa. Kusankhidwa kumaphatikizapo zambiri, kusasamala pang'ono, kudzatsogolera kusankhidwa kosayenera, osayambitsa kuwonongeka kwa anthu, chuma chakuthupi, chuma, ndi kugwiritsa ntchito zotsatira zake sikoyenera, kubweretsa mavuto angapo ogwiritsira ntchito, monga kudalirika. , moyo, khalidwe la ntchito, ndi zina. Pakuyesa kofulumira kwa valve yochepetsetsa pa malo, nthawi yotseka mwamsanga ya ma valve ena oyimitsa si oyenera. Kulowetsa kwa valve yofulumira kumasulidwa kumasinthidwa pamalopo kuti nthawi yotseka mwamsanga ma valve onse akwaniritse zofunikira. Muyeso yotseka yofulumira YA valavu yotsika kwambiri pa malo, nthawi yotseka mwamsanga ya ma valve ochepa oima siiyenera. Kulowetsa kwa valve yofulumira kumasulidwa kumasinthidwa pamalopo kuti kutsekedwa mwamsanga kwa ma valve onse kukwaniritse zofunikira. Kulowetsa kwa valavu ya Adams yotsika kwambiri ku valavu yotulutsa mwamsanga kumasinthidwa ndi kusintha chiwerengero cha gaskets kutsogolo ndi kumbuyo. Kusuntha kwa gawo lochepa thupi ndi ± 0.15s, ndipo kusuntha kwa gawo lakuda ndi ± 0.3s, monga momwe tawonetsera pa chithunzi pansipa. Malinga ndi mawonekedwe a makina a chipangizocho, mfundoyi imakokedwa motere: Kuphatikizidwa NDI chithunzithunzi chojambula ndi zithunzi, zikhoza kuwoneka kuti njira yosinthira ndikusintha ma gaskets kumbali zonse ziwiri za bwana kuti asinthe kutalika kwa kutsetsereka kulikonse mu gawo la mafuta. Pali mitundu iwiri ya slider, imodzi yopyapyala ndi yokhuthala. Zithunzi ziwiri zotsatirazi zikuwonetsa malo a slider panthawi yogwira ntchito bwino komanso kutseka kwachangu. Monga momwe zikuwonekera kuchokera pachithunzichi, pogwira ntchito bwino, slider imakankhidwira patsogolo, ndipo msewu wotsitsa umatsekedwa; Kutsekeka kofulumira kwa kulumpha kumachitika, chotsetsereka chimatuluka kunja ndipo dera lotsitsa mafuta limatsegulidwa. Sinthani kuchuluka kwa ma gaskets kumbuyo kwa chipika cha slide, mutha kusintha mpando wakumbuyo wa slide block, mpaka kutalika kwa msewu wotsitsa mafuta, panja kuti muwonjezere gasket, mutha kutseka nthawi yayitali 0.15s, kunja kuti muwonjezere gasket wandiweyani, zitha kupangitsa kuti nthawi yotseka mwachangu iwonjezere 0.3s. Wochapira akayikidwa mkati, sichisintha nthawi. Amagwiritsidwa ntchito posungirako zosunga zobwezeretsera.