1. Kodi mfundo yogwira ntchito ndi chiyanivalavu ya mpira?
Valve yozungulira yozungulira ndi valavu yoyang'ana yokhala ndi mipira yambiri, njira yothamanga komanso mawonekedwe amadzimadzi amitundu yambiri.Amapangidwa makamaka ndi matupi a valve kutsogolo ndi kumbuyo, mipira ya mphira, matupi ooneka ngati cone, ndi zina.
Mfundo yogwirira ntchito ya valavu yoyang'ana mpira ndiyo makamaka kugwiritsa ntchito mpira wa rabara kuti ugubuduze pang'onopang'ono pachivundikiro cha dome kuti uzindikire kutsegula ndi kutseka kwa valve.Pamene mpope wamadzi umayamba, madzi amathamangira mpira wa rabara pansi pa kukakamizidwa, kotero kuti mpira wa rabara umayenda kumbali yoyenera.Malo ake amakhazikitsidwa ndi cone mu thupi lakumbuyo la valve, ndipo valve yotsegula imatsegulidwa;pampu itayima, chifukwa cha kuthamanga kwa madzi mumayendedwe a payipi, mpira wa rabara umakakamizika kugubuduza kumanzere kwa valve yakutsogolo, ndipo valavu yotseka imatsekedwa.
2. Kodi valavu yowunikira mpira ndiyosavuta kugwiritsa ntchito?
Monga valavu yowunikira mawonekedwe apadera, valavu yowunikira mpira imakhala ndi dongosolo losavuta ndipo makamaka imapangidwa ndi chipangizo chozungulira ndi thupi la valve.Chipangizo chozungulira chimapangidwa ndi chivundikiro chozungulira komanso mpira wa rabara.Ndi kukhuthala kwina ndi mphamvu zokwanira, kodi valavu yoyang'anira mpira ndiyabwino kugwiritsa ntchito?
1. Ubwino wa valavu ya mpira
(1) Mpira wa rabara wa valavu yozungulira umatenga mpira wachitsulo wopanda kanthu, ndipo mphira wokhala ndi kukhazikika bwino umatha kutsimikizira kusindikiza ndikuchepetsa kuwonongeka kwa mapaipi panthawi yotseka ma valve.
(2) Chifukwa ndi valavu yozungulira, madzi othamanga amadutsa mu thupi la valve pafupifupi molunjika, mphamvu yokana ndi yaying'ono, yopulumutsa mphamvu, ndipo madzi otsekemera amadzimadzi amakhala okhazikika komanso ochepa, omwe amatha kuchepetsa kuwonongeka kwa hydraulic chifukwa cha kunjenjemera kwa mpira wa rabara mu valavu.
(3) Ubwino wina wa valavu yozungulira yozungulira ndikuti imakhala ndi mphamvu yabwino yoyamwitsa ndipo sichifuna madzi apamwamba.
(4) Valavu yozungulira yozungulira ilibe mbali zozungulira za shaft ndi manja, ndipo palibe kuvala kwa shaft ndi manja.Mpira wa mphira uli mu kuyimitsidwa kwaufulu ndi kusinthasintha kwaulere, ndipo kuvala ndi yunifolomu.Komanso, m'mimba mwake wa mpira mphira ndi awiri a mpando mpira.Nthawi 1.3, ngakhale mpira wa rabara utakhala wosanjikiza, umakhalabe ndi ntchito yabwino yosindikiza komanso kukana kuvala.
(5) Kuchepetsa phokoso labwino komanso kuchepetsa kugwedezeka, kutseka kwapang'onopang'ono komanso kuchepetsa nyundo yamadzi.
(6) Kuyikako kuli koyenera, mphamvu yokoka ya mpirayo ili pafupi ndi madzi, ndipo ili m'malo oyimitsidwa mwaufulu, kotero ikhoza kukhazikitsidwa molunjika kapena molunjika.
2. Kuipa kwa valve check valve
Choyipa chachikulu cha valavu yoyang'ana mpira ndikuti kuchuluka kwa valavu ya mpira ndi yayikulu, ndipo malo omwe valavu ya mpira ndi yayikulu, makamaka pamene valavu ya pompano yakale imabwezeretsedwanso, siyingagwiritsidwe ntchito. chifukwa cha zoletsa kukula.
Nthawi yotumiza: Sep-30-2022