Pamlingo wina, valavu yapadziko lonse ndi valavu yachipata imatha kunenedwa kuti ili ndi zolumikizira zambiri. Kodi tinganene kuti valavu yapadziko lonse ndi valavu yachipata zingathe kusakanikirana? Shanghai Dongbao Valve Manufacturing Co., Ltd. ili pano kuti ikuyankheni funsoli.

1. Kapangidwe
Malo oyika akakhala ochepa, chonde tcherani khutu pazosankha:
Thevalve pachipataakhoza kutsekedwa mwamphamvu ndi kusindikiza pamwamba kutengera kupanikizika kwapakatikati, kuti akwaniritse zotsatira za kutayikira. Potsegula ndi kutseka, chigawo cha valve ndi malo osindikizira mpando wa valve nthawi zonse amalumikizana ndi kupakana wina ndi mzake, kotero kuti kusindikiza pamwamba kumakhala kosavuta kuvala. Pamene valve yachipata ili pafupi kutseka, kusiyana kwapakati pakati pa kutsogolo ndi kumbuyo kwa payipi kumakhala kwakukulu, zomwe zimapangitsa kuti malo osindikizira azikhala ovuta kwambiri.
Mapangidwe a valve yachipata adzakhala ovuta kuposa valve yotseka. Kuchokera pamawonekedwe, valavu yachipata ndi yayitali kuposa valavu yotseka ndipo valavu yotseka ndi yaitali kuposa valavu yachipata pamtundu womwewo. Kuphatikiza apo, valavu yachipata imatha kugawidwa kukhala ndodo yowala ndi ndodo yakuda. Valve yotseka sichitha.
2. Mfundo yogwira ntchito
Pamene valavu yotseka imatsegulidwa ndi kutsekedwa, tsinde limatuluka, ndiko kuti, pamene gudumu lamanja likutembenuzidwa, gudumu lamanja lidzazungulira ndikukweza pamodzi ndi tsinde. Valavu yachipata imatembenuza gudumu lamanja kuti tsinde la valve lisunthike mmwamba ndi pansi, ndipo malo a gudumu lamanja amakhalabe osasintha.
Kuthamanga kwa kayendedwe kake kumakhala kosiyana, valavu yachipata imayenera kutsegulidwa kwathunthu kapena kutsekedwa kwathunthu, koma valve yoyimitsa sikufunika. Valavu yotsekera ili ndi njira zolowera ndi zotuluka, ndipo valavu yachipata ilibe njira yolowera komanso yolowera.
Kuonjezera apo, valve yachipata ili ndi zigawo ziwiri zokha: kutsegulidwa kwathunthu kapena kutsekedwa kwathunthu, chitseko chotsegula ndi kutseka chitseko ndi chachikulu, ndipo nthawi yotsegula ndi yotseka ndi yaitali. Kuthamanga kwa valavu ya valve ya valve yotseka kumakhala kochepa kwambiri, ndipo mbale ya valve ya valve yotseka imatha kuimitsidwa pamalo ena panthawi ya kayendetsedwe ka kayendedwe ka kayendedwe ka kayendedwe kake. Valve yachipata ingagwiritsidwe ntchito podula, ndipo ilibe ntchito zina.
3. Kusiyana kwa machitidwe
Valve yotseka imatha kugwiritsidwa ntchito podula komanso kusintha koyenda. Kukaniza kwamadzimadzi kwa valve yapadziko lonse lapansi ndikokulirapo, ndipo kumakhala kovuta kwambiri kutsegula ndi kutseka, koma chifukwa mtunda pakati pa mbale ya valve ndi malo osindikizira ndi waufupi, sitiroko yotsegula ndi yotseka imakhala yochepa.
Chifukwa ndivalve pachipataimatha kutsegulidwa kwathunthu ndikutsekedwa kwathunthu, ikatsegulidwa kwathunthu, kukana kwapakati pamayendedwe a valve thupi pafupifupi zero, kotero kutsegula ndi kutseka kwa valve yachipata kudzakhala kupulumutsa ntchito, koma chipata chili kutali. kuchokera pamalo osindikizira ndi nthawi yotsegula ndi yotseka ndi yaitali. .
4. Kuyika ndi kuyenda
Zotsatira za valve yachipata kumbali zonsezo ndizofanana. Palibe chofunikira panjira yolowera ndi potuluka kuti muyike, ndipo sing'angayo imatha kuzungulira mbali zonse ziwiri. Valavu yotsekera iyenera kukhazikitsidwa motsatira ndondomeko ya muvi wa valve pa thupi la valve. Palinso chikhazikitso chomveka bwino chokhudza njira yolowera ndi kutuluka kwa valve yotseka. valavu ya dziko langa "Sanhua" imanena kuti njira yothamanga ya valve yotseka iyenera kukhala kuchokera pamwamba mpaka pansi.
Valve yotseka ndi yotsika mkati komanso yokwera kunja. Kuchokera kunja, zikuwonekeratu kuti payipi siili pamzere wopingasa wa gawo limodzi. Njira yodutsa ma valve pachipata ili pamzere wopingasa. Kugunda kwa valve pachipata ndi kwakukulu kuposa kwa valve yoyimitsa.
Kuchokera pakuwona kukana koyenda, kukana kwa valavu ya chipata kumakhala kochepa pamene kutsegulidwa kwathunthu, ndipo kukana kwa valve stop stop ndi kwakukulu. Kuthamanga kwamphamvu kwa valve yachipata wamba ndi pafupifupi 0.08 ~ 0.12, mphamvu yotsegula ndi yotseka ndi yaying'ono, ndipo sing'anga imatha kuyenda mbali ziwiri.
Kukana koyenda kwa ma valve otsekera wamba ndi nthawi 3-5 kuposa ma valve a pachipata. Potsegula ndi kutseka, iyenera kukakamizidwa kutseka kuti ikwaniritse chisindikizo. Chovala cha valve cha valve yoyimitsa sichimalumikizana ndi malo osindikizira pamene chatsekedwa kwathunthu, kotero kuvala kwa malo osindikizira kumakhala kochepa kwambiri. Valavu yoyimitsa yomwe ikufunika kuwonjezera actuator chifukwa cha mphamvu yayikulu yoyenda iyenera kulabadira kuwongolera kwa torque.
Pamene valavu yotsekera imayikidwa, sing'angayo imatha kulowa kuchokera pansi pazitsulo za valve ndikulowa kuchokera pamwamba m'njira ziwiri.
Ubwino wa sing'anga yolowera kuchokera pansi pa chivundikiro cha valve ndikuti kulongedza sikupanikizika pamene valavu yatsekedwa, yomwe ingatalikitse moyo wautumiki wa kulongedza, ndipo ikhoza kutenga m'malo mwake pamene chitoliro kutsogolo kwa valve chili pansi. kupanikizika.
Kuipa kwa sing'anga yomwe imalowa kuchokera pansi pa chivundikiro cha valve ndikuti mphamvu yoyendetsa galimoto ya valve ndi yaikulu kwambiri, pafupifupi 1.05 ~ 1.08 nthawi yomwe ili pamwambayi, tsinde la valve limakhala ndi mphamvu yaikulu ya axial, ndipo tsinde la valve. ndi yosavuta kupindika.
Pachifukwa ichi, njira yomwe sing'angayo imalowera kuchokera pansi nthawi zambiri imakhala yoyenera ma valve oyimitsa ang'onoang'ono (pansi pa DN50). Pa ma valve oyimitsa pamwamba pa DN200, sing'angayo imalowa kuchokera pamwamba. Valavu yotseka yamagetsi nthawi zambiri imatenga njira yomwe sing'anga imalowera kuchokera pamwamba.
Kuipa kwa njira yomwe sing'anga imalowera kuchokera pamwamba ndi zosiyana ndi momwe sing'angayo imalowera kuchokera pansi. Ndipotu, imatha kuyenda mbali zonse ziwiri, kungoganizira zosiyana.
5. Chisindikizo
Kusindikiza pamwamba pa dziko lapansivalavundi mbali yaing'ono ya trapezoidal yapakati pa valve (onani mawonekedwe a valavu kuti mudziwe zambiri). Pamene phokoso la valve likugwa, ndilofanana ndi kutseka valavu (ngati kusiyana kwapakati kuli kwakukulu, ndithudi kutseka sikuli kolimba, koma anti-reverse effect siipa). Valve yachipata imasindikizidwa pambali ya mbale yapachipata cha valve, kusindikiza sikuli bwino ngati valve yoyimitsa, ndipo valavu ya valve sichidzatsekedwa ngati valve yoyimitsa pamene chigawo cha valve chikugwa.