M'nkhani yapitayi, tidakambirana za ma valve a zipata ndi globe, lero tikupita ku ma valve a butterfly ndi ma valve, omwe amagwiritsidwa ntchito kwambiri pochiza madzi.
1. Vavu ya Gulugufe.
Valve ya butterflyndi valavu yozungulira yomwe imagwiritsa ntchito diski (yomwe imadziwikanso kuti mbale ya butterfly) yotsegula ndi kutseka membala kuti azungulira 90 ° kapena pafupifupi 90 ° kuti atsegule ndi kutseka njira.Kusuntha kwa chimbale cha butterfly valve ndikupukuta, kotero mavavu ambiri agulugufe atha kugwiritsidwa ntchito ngati media ndi tinthu tating'ono tolimba.
Mavavu agulugufe omwe amagwiritsidwa ntchito nthawi zambiri amaphatikiza ma valve agulugufe wafe ndi flanged.Vavu ya gulugufe yamtundu wa Wafer imagwiritsidwa ntchito kulumikiza valavu pakati pa ma valavu awiri a chitoliro ndi ma bolts, ndipo valavu ya butterfly yamtundu wa flange ili ndi flange pa valavu, ndipo ma flanges pa malekezero onse a valavu amagwirizanitsidwa ndi chitoliro ndi mabawuti.
Mawonekedwe:
1.Kukula kwakung'ono, kutalika kwaufupi, kapangidwe kosavuta komanso kulemera kopepuka.
2. Zosavuta kugwiritsa ntchito, kutsegula ndi kutseka mwamsanga, zimangofunika kuzungulira diski 90 ° kuti mutsegule ndi kutseka.
3. Kusindikiza kwabwino ndi kusintha ntchito.Chifukwa mphira umagwiritsidwa ntchito ngati mphete yosindikizira, kuponderezana ndi kulimba mtima ndi zabwino (ndiko kuti, sizidzaumitsa), kotero kuti kusindikiza kuli bwino..Chovala cha valve chimatha kutsegulidwa pakati pa 15 ° ndi 70 °, ndipo chimatha kuyendetsa bwino kuyenda.
4. Torque yaing'ono yogwiritsira ntchito komanso kukana madzimadzi.Malinga ndi miyeso, kukana kwamadzimadzi kwa mavavu agulugufe ndi kochepa poyerekeza ndi mitundu ina ya mavavu kupatula mavavu a mpira.
5. Chifukwa cha kuchepa kwa zinthu zosindikizira, kuthamanga kwa ntchito ndi kutentha kwa ntchito kwa valve butterfly ndizochepa.
2.Chongani Vavu
Magwiritsidwe ndi Makhalidwe:
Onani valavundi valavu yomwe imagwiritsidwa ntchito poletsa kubwereranso kwa media mu payipi, imatsegulidwa pomwe sing'anga imayenda pansi ndikutseka yokha pomwe sing'anga imayenda chammbuyo.Nthawi zambiri ntchito payipi salola sing'anga kuyenda mbali ina, pofuna kupewa backflow wa sing'anga kuwonongeka kwa zida ndi mbali.Pampu ikasiya kugwira ntchito, musayambitse kusintha kwa mpope.Mu payipi, nthawi zambiri fufuzani ma valve ndi ma valve otsekedwa omwe amagwiritsidwa ntchito motsatizana.Izi ndichifukwa cha kusindikiza kosauka kwa valve yoyang'ana, pamene kupanikizika kwa ma TV kumakhala kochepa, padzakhala gawo laling'ono la zofalitsa zofalitsa, kufunikira kwa ma valve otsekedwa kuti atsimikizire kutsekedwa kwa payipi.Vavu pansi ndi valavu cheke, ayenera kumizidwa m'madzi, makamaka anaika pa mpope sangakhale kudziona priming kapena palibe zingalowe kutulutsa madzi kuyamwa chitoliro kutsogolo.
Vavu yochizira madzi kulephera wamba ndi miyeso
Vavu mu ntchito payipi kwa nthawi ndithu, padzakhala zolephera zosiyanasiyana.Choyamba, chiwerengero cha zigawo zokhudzana ndi mapangidwe a valve, mbali zambiri ndizolephera wamba.Kachiwiri, ndi mapangidwe a valve, kupanga, kuyika, zochitika zogwirira ntchito, ubwino wokonza ndi kuipa.Kulephera kwapang'onopang'ono kosayendetsedwa ndi mphamvu kumagawidwa m'magulu anayi.
1.Kulephera kutumiza
Kulephera kwa chipangizo chotumizira nthawi zambiri kumawoneka ngati kutsekeka kwa tsinde la valavu, kugwira ntchito kosasinthika kapena valavu sikugwira ntchito.Zifukwa ndi: valve imatsekedwa kwa nthawi yaitali pambuyo pa dzimbiri;kukhazikitsa ndi kugwiritsa ntchito kuwonongeka kosayenera kwa ulusi wa tsinde kapena mtedza wa tsinde;chipata chapanikizana mu valavu thupi ndi zinthu zachilendo;chipata zambiri theka lotseguka ndi theka chatsekedwa boma, ndi madzi kapena zotsatira zina kumabweretsa tsinde zomangira ndi tsinde nati waya misalignment, kumasulira, kuluma chodabwitsa;kunyamula kupanikizika kumakhala kolimba kwambiri, kugwira tsinde;tsinde limakhala pamwamba kapena ndi kutseka kwa zigawo zopanikizana.Kukonza ayenera afewetsedwa pagalimoto mbali.Mothandizidwa ndi wrench, ndikugogoda mwapang'onopang'ono, mutha kuthetsa chodabwitsa cha jamming, topping;kuyimitsa kukonza madzi kapena kusintha valavu.
2.Kuwonongeka kwa valve thupi
Vavu thupi kuwonongeka kung'ambika zifukwa: vavu chuma dzimbiri kukana kuchepa;kukhazikika kwa maziko a chitoliro;chitoliro maukonde kuthamanga kapena kusintha kutentha kusiyana;nyundo yamadzi;kutseka valavu ntchito molakwika ndi zina zotero.Ayenera kuchotsa zoyambitsa zakunja mwachangu ndikusintha ma valve kapena ma valve amtundu womwewo.
3. Vavu kutayikira
Vavu kutayikira kumaonekera monga: valve tsinde pachimake kutayikira;kuwonongeka kwa gland;kutayikira kwa flange gasket.Zomwe zimayambitsa ndi izi: tsinde la valve (vavu shaft) kuvala, kuphulika kwa dzimbiri, maenje otsekera pamwamba, kusenda chodabwitsa;kusindikiza kukalamba, kutayikira;ma bolt a gland, mabawuti a flange kumasuka.Kukonzekera kuonjezera, m'malo mwa sing'anga yosindikiza;sinthani nati watsopano kuti mukonzenso malo a bolt.
Ziribe kanthu mtundu wa kulephera ngati mwachizolowezi kukonza, kukonza si nthawi yake, kungachititse kuti madzi zinyalala, kapena choipa, chifukwa dongosolo lonse ziwalo.Chifukwa chake, ogwira ntchito yosamalira ma valve ayenera kukhala pazifukwa za kulephera kwa ma valve kuti agwire ntchito yabwino, kuwongolera mwaluso komanso molondola komanso magwiridwe antchito a valavu, chithandizo chanthawi yake komanso chotsimikizika cha zolephera zosiyanasiyana zadzidzidzi, kuteteza magwiridwe antchito anthawi zonse pamakina opangira madzi.
4. valve kutsegula ndi kutseka si bwino
Kutsegula kwa valve ndi kutseka koyipa kwa valavu sikutsegulidwa kapena kutsekedwa, valavu silingagwire ntchito bwino.Zifukwa ndi: valavu tsinde dzimbiri;chipata chopanikizana kapena chipata chimatsekedwa kwa nthawi yayitali mu dzimbiri;gate off;zinthu zakunja zomangika pamalo osindikizira kapena kusindikiza poyambira;kufala ziwalo kuvala, kupanikizana.Kukumana ndi zomwe zili pamwambapa kukonza, magawo otumizira mafuta;Kutsegula ndi kutseka mobwerezabwereza valavu ndi mphamvu ya hydrodynamic ya zinthu zakunja;m'malo mwa valve.