Kukula kwa valavu yowongolera kuyambira koyambirira kwa zaka za zana la 20 kwakhala zaka 80 za mbiriyakale yowongolera valavu imachotsa mwachangu zolephera zisanu.

Kukula kwa valavu yoyang'anira kuyambira kuchiyambi kwa zaka za zana la 20 kwakhala zaka 80 za mbiriyakale yowongolera valavu mwachangu kuthetsa kutenthetsa wamba zolephera zisanu. kuwongolera ma valve, ma valve odzidalira okha ndi ma positioners, etc., kuwongolera valavu ndi njira yoyendetsera ma valve ndi motere: 20 s: Chovala choyambirira chowongolera kuti chikhale chokhazikika chinatuluka. 30 s: Kuti "V" lowetsani valavu yokhala ndi mipando iwiri komanso valavu yapampando umodzi pazogulitsa V-mtundu wowongolera mpira valavu idatuluka. 1940s: Kuwonekera kwa malo, mitundu yatsopano ya ma valve owongolera amapangidwanso, valavu ya diaphragm, valavu ya Angle, valavu ya butterfly, valavu ya mpira ndi zina zotero. 1950s: Vavu ya mpira yakhala ikugwiritsidwa ntchito kwambiri, valavu yanjira zitatu m'malo mwa valavu iwiri yokhala ndi mpando umodzi. Zaka za m'ma 1960: Pambuyo pakuwongolera ndi kukhazikika kwazinthu zomwe zili pamwambapa ku China, mndandanda wathunthu wazinthu zidapangidwa ku China. Tsopano tikugwiritsabe ntchito kuchuluka kwa valavu yokhala ndi mpando umodzi, valavu yokhala ndi mipando iwiri, valavu ya ngodya, valavu yanjira zitatu, valavu ya diaphragm, valavu ya butterfly, valve ya mpira, zinthu zisanu ndi ziwiri zikadali mlingo wa mankhwala m'ma 1960. Panthawi imeneyi, achilendo anayamba kukhazikitsa mtundu wachisanu ndi chitatu wa dongosolo valavu - manja valavu. Zaka za m'ma 70: Kapangidwe kena katsopano ka mankhwala - eccentric rotary valve inatuluka. Panthawi imeneyi, ma valve a manja ankagwiritsidwa ntchito kwambiri kunja. Chakumapeto kwa zaka za m'ma 1970, mapangidwe apakhomo a mavavu a manja, kotero kuti China ili ndi mzere wake wa mavavu a manja. 1980s: Panthawi yotsegulira, China idayambitsa bwino chipangizo cha petrochemical ndi ukadaulo wowongolera ma valve, kotero kuti valavu ya manja, valavu yozungulira ya eccentric yadziwika ndikugwiritsidwa ntchito, makamaka valavu ya manja, imatha kusintha valavu imodzi ndi iwiri, kugwiritsidwa ntchito kwake kukuchulukirachulukira. Kumapeto kwa zaka za m'ma 80, wowongolera ndi kupita patsogolo kwakukulu ku Japan Cv3000 ndi chowongolera chaching'ono chabwino, iwo mu kapangidwe kake, kasupe kamodzi ka pneumatic film actuator mu multi-spring filimu actuator, mawonekedwe a valve amangosinthidwa, osasinthidwa. Chochititsa chidwi kwambiri ndi chakuti kulemera ndi kutalika kwa valve yolamulira kumatsika ndi 30%, ndipo coefficient yothamanga imawonjezeka ndi 30%. Kuonjezera apo, kampani yathu imagulitsa katundu komanso kudzidalira pazitsulo zowongolera ma valve, ma valve oyendetsa mpando umodzi wamagetsi ndi zina zotero, kulandiridwa kuti muwone! Kuchita bwino kwambiri kwazinthu, ntchito ndi ntchito yathu yosatha, chonde makasitomala atsopano ndi akale khalani otsimikiza kuti mugule zomwe amakonda. Sinthani valavu kuti muthetse mwamsanga zolakwika zisanu zomwe zimawotcha 1. Zolakwika zofala: Kutentha sikutentha konse. Njira yochotsera: Tsegulani cholowera ndikubwezeretsa valavu yamadzi. 2. Zolakwika zambiri: Kutentha sikutentha (valavu yatsegulidwa). Kutentha sikutentha kwambiri. Pali phokoso la madzi mu makina otenthetsera. Njira yochotsera: Pakhoza kukhala mpweya mu makina otenthetsera, ndipo amafunika kuchotsedwa. Njira 1: Tsekani valavu yolowetsa madzi poyamba. Tsegulani valavu yotulutsa mpweya, madzi osefukira, kutseka valve yotulutsa mpweya. Njira yachiwiri: Tsekani valve yolowera ndi 3/4, kenaka mutseke valavu yamadzi yobwerera, tsegulani valavu kuti mutulutse, ndipo theka mutseke valve yotulutsa pamene madzi akusefukira. Kumbutsani: Pambuyo pa opaleshoni, ngati cholakwikacho sichingachotsedwe, dziwitsani ogwira ntchito yokonza. 3. Zolakwika wamba: Kutentha kwa chitoliro chowotcha sikokwanira, kutentha kwa chipinda kumakhala kochepa kwambiri. Njira yochotsera: Ngati kutentha kwa malowa kuli kochepa, onjezerani kutentha kolowera. Dongosolo loyendera ndi katundu. 4. Zolakwika zofala: Kulowetsa madzi ndi ma valve obwerera kumalowa mkati (pafupi ndi makina otenthetsera). Njira yochotsera: Tsekani cholowera ndikubwezeretsa valavu yamadzi. Dziwitsani gulu lokhazikitsa kuti likonze. 5. Zolakwika zofala: Madzi amatuluka kunja kwa ma valve olowera ndi kubwerera (pafupi ndi msewu waukulu). Njira yochotsera: dziwitsani valavu yotsekedwa ndi theka la katundu; Dziwitsani gulu lokhazikitsa kuti likonze.