Chidziwitso cha-njira yogwirira ntchito pamalo a valve yamanja
Kutsegula ndi kutseka kwa valve yamanja:
1. Valve ya manual ndi valve yogwiritsidwa ntchito kwambiri. Gudumu lake lamanja kapena chogwirira chimapangidwa molingana ndi wamba wamba, poganizira mphamvu ya malo osindikizira komanso mphamvu yotseka yofunikira. Choncho, simungagwiritse ntchito lever yaitali kapena wrench yaitali kuti musunthe. Anthu ena amazoloŵera kugwiritsa ntchito ma wrenches, ndipo ayenera kusamala kuti asagwiritse ntchito mphamvu zambiri, mwinamwake ndizosavuta kuwononga malo osindikizira, kapena kuthyola gudumu lamanja ndi chogwirira.
2. Potsegula ndi kutseka valavu, mphamvu iyenera kukhala yokhazikika popanda kukhudzidwa. Magawo ena a -mavavu othamanga kwambiri omwe amatsegula ndi kutseka awona kuti mphamvu iyi singakhale yofanana ndi mavavu wamba.
3. Pakuti, asanatsegule, azitenthedwa kale -ndipo madzi osungunuka achotsedwe. Potsegula, kuyenera kukhala pang'onopang'ono momwe mungathere kuti mupewe nyundo yamadzi.
4. Vavu ikatsegulidwa mokwanira, gudumu lamanja liyenera kutembenuzidwira pansi kuti ulusi ukhale wolimba kuti zisawonongeke komanso kuwonongeka. Pa mavavu a tsinde okwera, kumbukirani malo a tsinde la valavu pamene atsegula ndi kutsekedwa kwathunthu kuti musamenye pakati pakufa pamene atsegula. Ndipo ndizosavuta kuyang'ana ngati zili zachilendo mukatsekedwa kwathunthu. Ngati tsinde la valve likugwa, kapena zinyalala zazikulu zimayikidwa pakati pa chisindikizo cha valve, malo a tsinde la valve adzasintha atatsekedwa kwathunthu.
5. Pamene payipi ikugwiritsidwa ntchito koyamba, pali dothi lambiri lamkati. Mukhoza kutsegula valavu pang'ono, kugwiritsa ntchito kuthamanga kwapamwamba kwa sing'anga kuti mutsuke, ndiyeno mutseke pang'onopang'ono (osati mofulumira kapena mwamphamvu kuti muteteze zotsalira zotsalira kuti zisawononge malo osindikizira), kuyatsanso, bwerezani izi kangapo, kutulutsa dothi, ndiyeno mugwiritse ntchito bwino.
6. Pa valve yotseguka yotseguka, pangakhale dothi pamalo osindikizira. Yatsekedwa, gwiritsani ntchito njira yomwe tafotokozayi kuti muiyeretse, kenaka muitseke mwamphamvu.
7. Ngati gudumu lamanja ndi chogwiritsira ntchito zowonongeka kapena zowonongeka, ziyenera kukhala ndi zida nthawi yomweyo, ndipo sizingasinthidwe ndi wrench yosinthika, kuti zisawonongeke ku tsinde la valve, kutsegula ndi kutseka kulephera, zomwe zimapangitsa kuti pakhale ngozi pakupanga.
8. Zofalitsa zina zimaziziritsa valavu ikatsekedwa kuti ichepetse valavu. Wogwira ntchitoyo atsekenso pa nthawi yoyenera kuti pasakhale ming'alu pa malo osindikizira. Apo ayi, sing'angayo idzadutsa m'ming'alu mothamanga kwambiri ndipo idzaphwanyidwa mosavuta. Kusindikiza pamwamba.
9. Panthawi yogwira ntchito, ngati ntchitoyi ikupezeka kuti ndi yovuta kwambiri, chifukwa chake chiyenera kufufuzidwa. Ngati kulongedza kwake kuli kolimba kwambiri, kumatha kumasulidwa bwino. Ngati tsinde la valve lakhota, ogwira ntchito ayenera kudziwitsidwa kuti akonze. Inde, mu malo otsekedwa, gawo lotseka limatenthedwa ndi kukulitsidwa, zomwe zimapangitsa kuti zikhale zovuta kutsegula; ngati iyenera kutsegulidwa panthawiyi, chivundikiro cha valve chikhoza kumasulidwa theka la kutembenuka kumodzi kuti athetse nkhawa pa tsinde la valve, ndiyeno kusuntha handwheel.
Kusamala pa-mavavu apatsamba:
1. Kutentha kwakukulu pamwamba pa madigiri a 200 , chifukwa ndi kutentha kwabwino panthawi ya kukhazikitsa, ndipo pambuyo pogwiritsira ntchito bwino, kutentha kumakwera, bolt imatenthedwa kuti iwonjezere, ndipo kusiyana kumawonjezeka, kotero iyenera kuimitsidwa kachiwiri, komwe kumatchedwa "kutentha kwa kutentha". Wogwira ntchitoyo ayenera kulabadira ntchitoyi. Apo ayi, kutayikira kudzachitika mosavuta.
2. Pamene nyengo ikuzizira, ngati valavu yamadzi yatsekedwa kwa nthawi yaitali, madzi osonkhanitsidwa kumbuyo kwa valve ayenera kuchotsedwa. Vavu ya nthunzi ikasiya nthunzi, madzi osungunuka ayeneranso kuchotsedwa. Pansi pa valavu ili ngati pulagi ya waya, yomwe imatha kutsegulidwa kuti ikhetse.
3. Mavavu osakhala achitsulo-, ena ndi olimba ndi opunduka, ndipo ena ndi opanda mphamvu. Panthawi yogwira ntchito, mphamvu yotsegula ndi yotseka siyenera kukhala yaikulu, makamaka osati yamphamvu. Komanso tcherani khutu kuti mupewe kugunda kwa zinthu.
4. Pamene valavu yatsopano ikugwiritsidwa ntchito, kulongedza sikuyenera kukakamizidwa kwambiri, kuti asatayike, kuti apewe kupanikizika kwambiri pa tsinde la valve, kuthamangitsa kuvala, ndi kutsegula ndi kutseka mwamphamvu.
Momwe mungayendetsere bwino gudumu lamanja la valavu lophulika-
The valve handwheel ndi chipangizo chofunikira pakhomo. Kudziwa njira yoyenera yogwirira ntchito ya valve handwheel ndikothandiza kwambiri kukulitsa moyo wautumiki wa valve. Njira yoyenera yogwiritsira ntchito valve handwheel Musanagwire ntchito, fufuzani ngati valavu yatsekedwa kapena yotseguka. Nthawi zambiri, kuzungulira kwa wotchi kwa valve handwheel ndiko kotsekera valavu, ndipo kuzungulira kozungulira ndiko komwe kumatsegulira valavu. Valavu imatsegulidwa ndikutsekedwa molingana ndi njira yozungulira. gwirani ntchito. Kuti asindikize bwino valavu, kukhudzana pakati pa valavu ndi mpando wa valve nthawi zambiri kumapangidwa ndi zinthu zotanuka mphira. Choncho, potsegula valavu, mphamvuyo iyenera kukhala yokhazikika, kuti musagwiritse ntchito mphamvu zambiri, zomwe zingawononge malo osindikizira a valve kapena gudumu lamanja la valve. Kukula kwa gudumu lamanja la valavu kumapangidwa molingana ndi anthu wamba, chifukwa chake zimanenedwa kuti m'mimba mwake valavu ndi yochepera 320mm, ndipo munthu m'modzi yekha amaloledwa kuigwiritsa ntchito. Vwilo lamanja la vavu lalikulu kuposa kapena lofanana ndi 320mm limatha kulola anthu awiri kugwiritsa ntchito kapena kugwiritsa ntchito zida monga F wrench kutsegula ndi kutseka valavu{11}} Komabe, sikuloledwa kugwiritsa ntchito valavu ndi zida zina kutsegula ndi kutseka mavalavu a diaphragm omwe si{12}}mavavu achitsulo, kuti valavu isawonongeke msanga. Kwa ma valve monga ma valve a zipata ndi ma valve a globe, pamene atsekedwa kapena kutsegulidwa mpaka kumapeto, ayenera kutembenuzidwa 1/4 mpaka 1/2 kutembenukira kuti ulusi ukhale wolimba kwambiri, kuti asapitirire valavu ndikuwononga valavu. Mavavu okhala ndi mavavu olambalala, monga:,,, ndi mavavu ena. Mukatsegula, valavu yodutsa iyenera kutsegulidwa poyamba kuti muyese kusiyana kwapakati pakati pa cholowera ndi chotulukira ndi kuchepetsa torque yotsegulira kuti valavu itsegulidwe bwino.
