Zosavuta kugwiritsa ntchito, zotseguka momasuka, zosinthika komanso zodalirika kuyenda; Kukonzekera kwa disc ndi kukonza kumakhala kosavuta, mawonekedwe osindikizira ndi omveka, ndipo m'malo mwa mphete yosindikizira ndi yabwino komanso yothandiza. Kapangidwe: Amapangidwa makamaka ndi thupi la valve, disc, mphete yosindikiza, tsinde, chithandizo, valavu ya valve, handwheel, flange, nati, screwing screw ndi zina. Vavu yamtunduwu nthawi zambiri iyenera kuyikidwa mopingasa mu payipi.
Valavu yotulutsa imagwiritsidwa ntchito makamaka pakutulutsa, kutulutsa, sampuli ndi kutseka kopanda kufa pansi pa reactor, tanki yosungira ndi zida zina. Kumunsi kwa valavu kumawotcherera pansi pa thanki ndi zotengera zina, motero kuchotsa chotsalira chotsalira cha ndondomeko ya media pamalowo. Valavu yotulutsa molingana ndi zosowa zenizeni, kapangidwe kake kapansi ndi mtundu wathyathyathya pansi, thupi la valavu ndi mawonekedwe a V, ndipo limapereka mitundu iwiri yokweza ndi kugwa yogwirira ntchito. The valavu thupi patsekeke ndi kukokoloka kukana, dzimbiri kukana kwa mphete chisindikizo, mu kutsegula kwa valavu mphindi, akhoza kuteteza valavu thupi kutsukidwa ndi sing'anga, dzimbiri, ndi chithandizo chapadera cha mphete chisindikizo, kuti pamwamba kuuma. kufika HRC56-62, ndi mkulu kuvala kukana, dzimbiri kukana ntchito, chimbale chisindikizo malinga ndi kufunikira kwa chivundikirocho akudutsa simenti carbide, awiri chisindikizo ntchito mzere chisindikizo, kuonetsetsa kudalirika kwa chisindikizo, Ndi kupewa zipsera. Pa nthawi yomweyo kutenga yochepa sitiroko valavu chimbale kamangidwe.
Kusiyana pakati pa mmwamba ndi pansi:
Vavu yotulutsira m'mwamba kuti mpira ukwere kuti utuluke, valavu yotsika yomwe imapangitsa kuti mpirawo ugwe kuti utuluke.
Valavu yotulutsira m'mwamba imakhala yodzaza, valavu yotsegulira yotsika yotsika imakhala yochepa kwambiri, ikani kettle end flange yokulirapo. Njira yosinthira ma disc ndi yosiyana: Valavu yotulutsira m'mwamba, monga dzina limatanthawuzira, imatsegula chimbale ndikukweza chowongolera chapamwamba; valavu yotulutsira pansi, monga dzina limatanthawuzira, imatsegula diski ndikutsitsa chipinda cha valve. Pachifukwa ichi, mlingo wa flange uyenera kuwonjezeka kuti uwonjezere malo a chipinda cha valve. Kutsegula ndi kutseka sitiroko ndi yosiyana, ndipo kukula kwa unsembe kumakhala ndi sitiroko yaing'ono yotsegula ndi yotseka ndi kutalika kwa unsembe wa kumtunda ndi kumunsi ndi kutseka ma valve. Kutalika kwa kukhazikitsa kwa ndodo yozungulira ndikochepa kwambiri, ndipo plunger imangozungulira potsegula ndi kutseka. Zimatsimikizira malo otsegulira ndi kutseka kwa valve malinga ndi chizindikiro chotsegulira ndi kutseka. Kutsegula ndi kutseka kwa torque m'mwamba kutulutsa valavu kumatsegulidwa kuti diski isunthire valavu, valavu iyenera kugonjetsa mphamvu yapakati ikatsegulidwa, ndipo torque yotseka imakhala yokulirapo ikatsegulidwa.
Valavu yotulutsa yotsika pansi ndi mtundu wa plunger imatsegula valavu yosunthira pansi. Mukatsegulidwa, mayendedwe oyenda ndi ofanana ndi mphamvu yapakatikati, kotero torque yotseka imakhala yaying'ono ikatsegulidwa.
Ngakhale kuti valavu yotulutsira m'mwamba ndi valve yotsika pansi ndi yosiyana kwambiri, zizindikiro zawo zomwe zimafanana ndizotalikirana pakati pa mpando wa valve ndi mapeto a flange, kusungirako zinthu zochepa, kapangidwe kameneka komanso ntchito yosindikiza kwambiri. Iwo ntchito anachita mphika wa zabwino mankhwala makampani, makampani mankhwala ndi makampani mankhwala, ndipo angagwiritsidwenso ntchito sing'anga kayendedwe ka particles zabwino ndi zofewa.
Nthawi yotumiza: Apr-26-2023
