Kugwiritsa ntchitochekeni valavu
1. Swing check valve: Diski ya valavu yoyang'ana swing imakhala yofanana ndi diski, ndipo imazungulira kuzungulira shaft ya mpando wa valve.Chifukwa ndime yamkati ya valve imasinthidwa, chiŵerengero cha kukana kwa kutuluka chikuwonjezeka.
Valve yowunikira dontho ndi yaying'ono, yoyenera kuthamanga kwapansi komanso nthawi zazikulu zapakati pomwe kuyenda sikumasintha pafupipafupi, koma sikuli koyenera kuthamangitsa, ndipo kusindikiza kwake sikuli bwino ngati mtundu wokweza.Mavavu oyendera ma swing amagawidwa m'mitundu itatu, mtundu watsamba limodzi, mtundu wamasamba awiri ndi mitundu yambiri yatheka.Mitundu itatuyi imayikidwa makamaka molingana ndi ma valve awiri.Cholinga chake ndikuletsa sing'anga kuti isayime kapena kuyenderera chammbuyo ndikufooketsa ma hydraulic shock.
2.Kukweza valavu yoyang'ana: valve yoyang'ana yomwe disc yake imayenda motsatira mzere wapakati wa thupi la valve.Valavu yokweza cheke imatha kukhazikitsidwa paipi yopingasa.Chimbalecho chingagwiritsidwe ntchito pa valavu yoyang'ana yaing'ono yaing'ono..Mawonekedwe a valavu ya valve yokweza ndi yofanana ndi ya valve yoyimitsa ndipo angagwiritsidwe ntchito mofanana ndi valavu yoyimitsa, kotero kuti mphamvu yake yamadzimadzi imakhala yaikulu.Mapangidwe ake ndi ofanana ndi valve yoyimitsa, ndipo thupi la valve ndi disc ndilofanana ndi valve yoyimitsa.Kumtunda kwa valavu ya valve ndi kumunsi kwa boneti kumakonzedwa ndi manja omveka.Chiwongolero cha disc cha valve chikhoza kukwezedwa momasuka ndikutsitsidwa mu kalozera wa valve.Pamene sing'anga imayenda kunsi kwa mtsinje, chimbale cha valve chimatsegulidwa ndi kukankhira kwa sing'anga.Imagwera pampando wa vavu kuti ateteze sing'anga kuyenderera chammbuyo.Mayendedwe a njira yolowera mkati ndi njira yotulutsira njira yowongoka yokweza valavu ndi perpendicular kwa njira ya mpando wa valve;valavu yokweza yoyima imakhala ndi njira yofanana ndi njira yolowera ndi yotuluka ngati njira ya mpando wa valve, ndipo kukana kwake kothamanga kumakhala kochepa kusiyana ndi mtundu wowongoka.
3. Valavu yoyang'ana ma disc: valve yoyang'ana momwe diski imazungulira mozungulira pini pampando wa valve.Valve yoyang'ana ma disc ili ndi mawonekedwe osavuta ndipo imatha kukhazikitsidwa paipi yopingasa, osasindikiza bwino.
4. Vavu yoyang'ana pamzere: Vavu yomwe chimbale chake chimayenda pakatikati pa thupi la valve.Vavu yoyang'ana mapaipi ndi mtundu watsopano wa valve.Ndi yaying'ono kukula kwake komanso yopepuka kulemera.
Kupanga kwabwino ndi njira imodzi yopangira ma cheke.Koma coefficient ya kukana kwamadzimadzi ndi yayikulu pang'ono kuposa ya swing check valve.
5. Valavu yowunikira: Valavu iyi imagwiritsidwa ntchito ngati madzi opangira boiler komanso valavu yotseka.Ili ndi ntchito yokwanira ya valavu yokweza ndi valavu yoyimitsa kapena valavu.
Kuonjezera apo, pali ma valve owonetsetsa omwe sali oyenerera kuyika pampu, monga valavu yapansi, mtundu wa masika, mtundu wa Y ndi ma valve ena owunika.
Mfundo ntchito ya valavu cheke
Valavu yowunikira imatanthawuza valavu yomwe imatsegula ndikutseka diski malingana ndi kutuluka kwa sing'anga yokha kuti ateteze sing'anga kubwerera kumbuyo, yomwe imadziwikanso kuti check valve, valve ya njira imodzi, reverse flow valve ndi back pressure valve.Check valve ndi mtundu wa valve automatic.Ntchito yake yayikulu ndikuletsa sing'anga kuyenderera mmbuyo, kuletsa mpope ndikuyendetsa mota kuti zisabwerere, ndikutulutsa sing'anga ya chidebe.Ma valve owunika amathanso kugwiritsidwa ntchito popereka mapaipi a machitidwe othandizira pomwe kupanikizika kumatha kukwera pamwamba pa kuthamanga kwa dongosolo.Ma valve owunikira amatha kugawidwa kukhala ma valve oyendera omwe amazungulira molingana ndi pakati pa mphamvu yokoka ndikukweza ma cheke valavu amayenda motsatira mbali.Ntchito ya mtundu uwu wa valve yowunika ndikungolola kuti sing'angayo iziyenda mbali imodzi ndikuletsa kuyenda kosiyana.Nthawi zambiri valavu yamtunduwu imagwira ntchito yokha.Pansi pa mphamvu yamadzimadzi yomwe ikuyenda mbali imodzi, valavu ya valve imatsegulidwa;pamene madzi amadzimadzi akuyenda mosiyana, kuthamanga kwamadzimadzi ndi kudzidzidzimutsa kwa valavu ya valve kumachita pampando wa valve, motero kumadula kutuluka.Pakati pawo, valavu ya cheke ndi ya mtundu uwu wa valavu, yomwe imaphatikizapo swing check valve ndi lift check valve.Valavu yoyang'ana swing ili ndi makina a hinge ndi disc ya valve ngati chitseko chotsamira pampando wokhazikika wa valve.Pofuna kuonetsetsa kuti phokoso la valve likhoza kufika pamalo oyenera a mpando wa valavu nthawi zonse, valve clack imapangidwa mu hinge mechanism kuti valve clack ikhale ndi malo okwanira kuti atembenuke ndipo imapangitsa kuti valavu ikhale yolimba komanso yogwirizana ndi mpando wa valve.Chovala cha valve chikhoza kupangidwa ndi chitsulo, kapena chophimbidwa ndi chikopa, mphira, kapena chophimba chopangira, malingana ndi zofunikira za ntchito.Pamene swing check valve yatsegulidwa kwathunthu, kuthamanga kwamadzimadzi kumakhala kosalekeza, kotero kuti kuthamanga kutsika kudzera mu valve kumakhala kochepa.Disiki ya valavu ya valve yokweza ili pamtunda wosindikizira wa mpando wa valve pa thupi la valve.Kupatula kuti diski ya valve imatha kukwezedwa ndikutsitsa momasuka, valavu ili ngati valve yotseka.Kuthamanga kwamadzimadzi kumakweza diski ya valve kuchokera pampando wa valve yosindikizira pamwamba, ndipo kubwerera kwapakati kumapangitsa kuti diski ya valve igwere kumpando wa valve ndikudula kutuluka.Malinga ndi momwe amagwiritsidwira ntchito, valavu ya valve imatha kukhala zitsulo zonse, kapena ikhoza kukhala ngati mphira ya rabara kapena mphete ya mphira yomwe imayikidwa pa valve clack frame.Mofanana ndi valavu yapadziko lonse lapansi, kutuluka kwa madzi kudzera muzitsulo zoyendetsa galimoto kumakhalanso kochepa, kotero kuti kuthamanga kutsika kudzera muzitsulo zoyendetsa galimoto kumakhala kwakukulu kusiyana ndi valavu ya swing check valve, ndipo kuthamanga kwa valve check check valve kumakhudzidwa.Zoletsa ndi zochepa.
Chachinayi, mawonekedwe amapangidwe a valve yowunikira:
1. Kutalika kwake ndi kochepa, ndipo kutalika kwake ndi 1/4 ~ 1/8 chabe ya valve yowunikira flange.
2.Kukula kochepa, kulemera kwake, ndi kulemera kwake ndi 1/4 ~ 1/20 yokha ya valve yowunikira flange.
3. Chovala cha valve chimatseka mwamsanga ndipo kuthamanga kwa nyundo yamadzi kumakhala kochepa.
4. Mapaipi onse opingasa kapena mipope yowongoka angagwiritsidwe ntchito, yosavuta kukhazikitsa.
5. Njira yothamanga imakhala yosasunthika ndipo kukana kwamadzimadzi kumakhala kochepa.
6. Kuchita mwachidwi ndi ntchito yabwino yosindikiza.
7. Disiki ya valve imakhala ndi sitiroko yaifupi komanso kutseka kochepa.
8. Mapangidwe onse ndi ophweka komanso osakanikirana, ndipo maonekedwe ndi okongola.
9. Moyo wautali wautumiki ndi ntchito yodalirika.
Udindo wa valavu yoyang'ana pamapampu operekera madzi ndikuletsa kutsika kwamadzi othamanga kwambiri pampopi.Panthawi yogwiritsira ntchito makinawo, pamene mpope imasiya kuthamanga mwadzidzidzi pazifukwa zina, kuthamanga kwa pampu kumachoka, ndipo madzi othamanga kwambiri omwe amagwirizanitsidwa ndi kutuluka kwa mpope amabwereranso ku mpope mozungulira.Pamene pompopompo imakhala ndi valve yowunikira, idzatsekedwa nthawi yomweyo kuti madzi asamayendetsedwe ku mpope.Ntchito ya valavu yoyang'anira m'madzi otentha ndikuletsa madzi otentha kuti asabwererenso mupaipi.Ngati ndi chitoliro cha PVC, chikhoza kuwotcha chitolirocho komanso ngakhale kuvulaza anthu, makamaka mu chotenthetsera madzi cha solar.
Nthawi yotumiza: Nov-11-2021