Common Valve Knowledge I

一 Vavu yagulugufe Disiki ya agulugufe ndi chimbale, chomwe chimazungulira mozungulira pampando. Ngodya yozungulira ndikutsegula ndi kutseka kwa valve. Ubwino wake ndi wopepuka, mawonekedwe osavuta, kupulumutsa zinthu poyerekeza ndi ma valve ena, kutsegula ndi kutseka mwamsanga, kudula ndi kugwedeza kungagwiritsidwe ntchito, kukana kwamadzimadzi kumakhala kochepa, ntchito yopulumutsa ntchito, ikhoza kupangidwa kukhala yaikulu. Ma valve a butterfly amagwiritsidwa ntchito kwambiri pamapaipi amadzi otentha. Kumene ma valve agulugufe angagwiritsidwe ntchito, ndi bwino kuti musagwiritse ntchito ma valve a zipata, chifukwa ma valve a butterfly ndi otsika mtengo kuposa ma valve a zipata ndipo ali ndi malamulo abwino.二 Valavu ya diaphragm Vavu ya diaphragm imagwiritsidwa ntchito kulekanitsa njira ya mpweya mwa kukanikiza filimu ya elastomer mwamphamvu pampando ndi tsinde la valavu. Kutembenuza gudumu lamanja kumatha kuyendetsa tsinde mmwamba ndi pansi, kotero kuti diaphragm ichoke pampando kuti itsegule valavu kapena kupangitsa kuti diaphragm isindikize mwamphamvu pampando kuti itseke valavu. Nthawi zogwiritsira ntchito ndi madzi oyera kwambiri, madzi oyera kwambiri samafunikira mbali yakufa mupaipi yoyenda; chachiwiri, pali zonyansa za zimbudzi, yankho, etc., tinthu mpira valavu mu madzi n'zosavuta kuvala ndi kung'amba ndi kutayikira, chapamwamba ndi m'munsi kutsekedwa kwa diaphragm valavu kwambiri kupewa vutoli, ndipo diaphragm akhoza m'malo pambuyo yaitali- kugwiritsa ntchito nthawi.三 Angle valavu Thupi la valavu la Angular ndilolunjika kumanja, thupi la valavu limakhala ndi mpando ndi malo osindikizira, nthawi zambiri pansi mkati ndi kunja. Chitsanzo chothandizira chimakhala ndi ubwino wa kapangidwe kosavuta komanso kusindikiza kwabwino. Ndi ntchito yodziyeretsa yokha, thupi la valve silophweka kudziunjikira dothi, losayenerera plugging, loyenera kuyang'anira ma TV apamwamba a viscosity, kusiyana kwa kuthamanga kwakukulu ndi zofalitsa zomwe zili ndi nkhani yoyimitsidwa ndi nkhani. Choyipa chake ndikuti chimakonda kukhala ndi ma valve oscillation osakhazikika.四 Pneumatic Film Regulating Valve The actuator ya pneumatic film control valve imakhala ndi zotsatira zabwino komanso zoyipa. Chotsatira chake ndi chakuti pamene kupanikizika kumawonjezeka, tsinde la valve limasunthira pansi, ndipo kuthamanga kumalowa m'chipinda cha filimu pamwamba pa diaphragm yamalata. Kuchita kumatanthauza kuti pamene kupanikizika kumawonjezeka, tsinde la valve limasunthira mmwamba, ndipo kupanikizika ndi chipinda cha filimu pansi pa diaphragm yamalata.