Chiyambi:

Pakugwiritsira ntchito tsiku ndi tsiku kwa ogwiritsa ntchito agulugufe amtundu waukulu, nthawi zambiri timawonetsa vuto, ndiko kuti, valavu yaikulu ya butterfly yomwe imagwiritsidwa ntchito posiyanitsa kusiyana ndi TV yaikulu, monga nthunzi, madzi othamanga kwambiri ndi ntchito zina zopanikizidwa, nthawi zambiri zimakhala zovuta kwambiri kutseka, ziribe kanthu momwe zimakhalira zovuta kutseka, nthawi zonse zimapeza kuti padzakhala kutayikira, n'zovuta kutseka mwamphamvu chifukwa cha structural structural, yomwe imachititsa kuti valavu iwonongeke chifukwa cha structural valve. mlingo wa torque yotulutsa ndi wosakwanira. ‍

Kusanthula kwazifukwa zovutira kusintha ma valve akulu awiri

Mphamvu yotulutsa yopingasa yopingasa ya munthu wamkulu ndi 60-90kg, kutengera kukula kwa thupi.

Mayendedwe ambiri a gulugufe wapangidwa kuti akhale otsika ndi otsika, pamene munthu atseka valavu, thupi la munthu horizontally amakankhira handwheel kuti azungulire, kotero kuti valavu valavu amasunthira pansi kuti akwaniritse kutsekedwa, zomwe zimafunika kugonjetsa kuphatikiza kwa mphamvu zitatu, zomwe ndi:

1) Axial pamwamba kukankhira Fa;

2) kulongedza ndi tsinde kukangana mphamvu Fb;

3) Tsinde ndi valavu core kukhudzana Fc

Torque yonse ndi ∑M=(Fa+Fb+Fc)R

Monga momwe tikuonera, kukula kwa caliber, kwakukulu kwa axial thrust force, pamene pafupi ndi dziko lotsekedwa, mphamvu ya axial thrust ili pafupi ndi mphamvu yeniyeni ya chitoliro (chifukwa cha kutsekedwa kwa P1-P2 ≈ P1, P2 = 0)

Ngati DN200 caliber butterfly valavu imagwiritsidwa ntchito pa 10bar nthunzi chitoliro, choyamba kutseka axial kukankhira Fa = 10 × πr2 = 3140kg, ndi yopingasa circumferential mphamvu yofunika kuti kutseka ndi pafupi malire a yopingasa circumferential mphamvu kuti akhoza kukhala linanena bungwe kwa munthu pafupi ndi zinthu zachibadwa ntchito bwino kwambiri.

Zoonadi, mafakitale ena amalimbikitsa kukhazikitsa mtundu uwu wa valve m'mbuyo, zomwe zimathetsa vuto la kutseka, koma vuto lazovuta kutsegula pambuyo potseka. ‍

 

Large awiri magetsi flange gulugufe wopanga Tianjin Zhongfa Vavu-ZFA luso dipatimenti kutsirizitsa, lalikulu awiri magetsi flange gulugufe valavu kutayikira zifukwa ali ndi zinthu zosiyanasiyana malinga ndi machitidwe osiyanasiyana, pali zifukwa zosiyanasiyana, zotsatirazi kusanthula milandu iwiriyi:

 

Choyamba, nthawi yomanga chifukwa chachikulu awiri magetsi flange gulugufe valavu mkati kutayikira zifukwa: 

① zoyendera ndi kunyamula molakwika chifukwa chonse kuwonongeka kwa lalikulu awiri magetsi flange gulugufe valavu, motero kuchititsa lalikulu magetsi flange valavu gulugufe kutayikira;

② fakitale, pambuyo kuthamanga madzi sanali kusewera lalikulu awiri magetsi flange gulugufe valavu kuyanika ndi anticorrosion mankhwala, chifukwa mu mapangidwe kutayikira mkati kusindikiza pamwamba dzimbiri;

③ chitetezo malo omanga si m'malo, lalikulu awiri magetsi flange gulugufe valavu si anaika pa malekezero akhungu, mvula, mchenga ndi zonyansa zina mu mpando valavu, chifukwa kutayikira;

④ Pakuyika, palibe mafuta omwe amabayidwa pampando wa valve, zomwe zimapangitsa kuti zinyalala zilowe kumbuyo kwa mpando wa valve, kapena kuyaka komwe kumachitika chifukwa cha kutuluka kwamkati mkati mwa kuwotcherera;

⑤ Valavu sinayikidwe pamalo otseguka, ndikuwononga mpira. Panthawi yowotcherera, ngati valavu ilibe malo otseguka, kuwotcherera spatter kumayambitsa kuwonongeka kwa mpira, ndipo pamene mpira wokhala ndi kuwotcherera sipatter umayatsidwa ndi kuzimitsidwa, zingayambitsenso kuwonongeka kwa mpando wa valve, motero kumayambitsa kutulutsa mkati;

⑥ kuwotcherera slag ndi zotsalira zina zomanga zomwe zimayambitsidwa ndi kusindikiza pamwamba;

fakitale kapena nthawi yoyika malo olakwika chifukwa cha kutayikira, ngati valavu ya tsinde la galimoto kapena zipangizo zina ndi kusalinganika kwa ngodya ya msonkhano, valavu yagulugufe yamtundu waukulu wamagetsi idzatuluka.

 

Chachiwiri, nthawi ntchito chifukwa lalikulu awiri magetsi flange gulugufe kutayikira zifukwa:

① Chifukwa chodziwika bwino ndichakuti woyang'anira ntchito amaganizira zamtengo wokwera wokwera wa valavu yagulugufe yamagetsi yamagetsi yamagetsi sachita kukonza, kapena kusowa kwa sayansi yayikulu yamagetsi agulugufe agulugufe kasamalidwe ndi njira zosamalira ma valve akulu akulu amagetsi agulugufe sachita kukonza zodzitetezera, zomwe zimapangitsa kuti zida ziwonongeke pasadakhale;

② kugwira ntchito molakwika kapena ayi molingana ndi njira zokonzetsera zokonzedwa ndi kutayikira kwamkati;

③ Pantchito yanthawi zonse, zotsalira zomanga zimakanda pamwamba, zomwe zimapangitsa kutayikira mkati;

④ Kuyeretsa zitoliro molakwika kumayambitsa kuwonongeka kwa malo osindikizira zomwe zimapangitsa kutayikira mkati;

⑤ Kusakonza kwanthawi yayitali kapena kusagwira ntchito kwa valavu yagulugufe yamagetsi yamtundu wamtundu waukulu, zomwe zimapangitsa mpando wa valavu ndi kugwira mpira, zomwe zimapangitsa kuwonongeka kosindikiza mukasintha valavu yagulugufe yamagetsi yamtundu waukulu kuti mupange kutayikira mkati;

⑥ lalikulu m'mimba mwake magetsi flange gulugufe lophimba si m'malo chifukwa kutayikira mkati, lalikulu m'mimba mwake lalikulu magetsi flange gulugufe valavu mosasamala kanthu kutsegula ndi kutseka udindo, zambiri kuweramira 2 ° ~ 3 ° zingachititse kutayikira;

⑦ Mavavu agulugufe ambiri okhala ndi mainchesi akulu akulu amakhala ndi tsinde, ngati atagwiritsidwa ntchito kwa nthawi yayitali, chifukwa cha dzimbiri ndi dzimbiri ndi zifukwa zina pakati pa tsinde ndi tsinde poyimitsa chipika zimaunjikira dzimbiri, fumbi, utoto ndi zinyalala zina, zinyalala izi zipangitsa kuti valavu yagulugufe yamagetsi ipangike m'mimba mwake - ngati valavu yagulugufe yamagetsi sichingachitike. valavu yagulugufe ya flange Yakwiriridwa, kutalikitsa tsinde la valavu kumatulutsa ndi kugwa dzimbiri komanso zonyansa zimalepheretsa kuzungulira kwa mpira wa vavu m'malo mwake, zomwe zimapangitsa kuti ma valve agulugufe atayike.

⑧ General actuator ilinso ndi malire, ngati chifukwa cha nthawi yayitali cha dzimbiri, kuumitsa mafuta kapena ma bolts omasuka kumapangitsa malirewo kukhala olakwika, zomwe zimapangitsa kutayikira mkati;

⑨ valavu yamagetsi yamagetsi yolowera kutsogolo, yosagwirizana ndi yomwe imayambitsa kutayikira mkati;

⑩ kusowa kukonzanso ndi kukonza nthawi ndi nthawi, zomwe zimapangitsa kuti mafuta asindikize owuma, owumitsidwa, owuma osindikizira adziunjike pampando wa valve zotanuka, zomwe zimalepheretsa kusuntha kwa mpando wa valve, zomwe zimapangitsa kuti chisindikizo chilephereke.

ZFA Valve Factory ili ndi magulu a akatswiri a QC kuti awonetsetse kuti valavu iliyonse ya fakitale mkati ndi maonekedwe ndi yomveka. Nthawi yomweyo, tili ndi ukadaulo waukadaulo komanso magulu otsatsa pambuyo -othandizira makasitomala kuthana ndi mavuto osiyanasiyana omwe amakumana nawo pakukhazikitsa ndikugwiritsa ntchito.