Kusankha valavu ya butterfly paipi yamadzi

1.Centerline butterfly valvendi eccentric butterfly valve
Centerline gulugufe valavu ndi eccentric gulugufe valavu ali ndi ubwino ndi kuipa，Posankha chitsanzo, ziyenera kuganiziridwa mozama pamodzi ndi ntchito yake yamtengo wapatali.Nthawi zambiri, valavu yagulugufe wapakati ndi yotsika mtengo kuposa valavu yagulugufe.Mavavu agulugufe wapakati amagwiritsidwa ntchito kwambiri m'mavavu agulugufe ang'onoang'ono a dziko langa, ndipo zotsatira zake zimakhala zabwino.Chisindikizo chake chotseka chimakhala chosindikizira cha rabara chofinya, makamaka pafupi ndi shaft ya valve imaphwanyidwa kwambiri, kotero kuti moyo wautumiki wa valavu umakhudzidwa, ndipo kutsegula ndi kutseka kwa valavu kumakhala kwakukulu kwambiri.Pofuna kuchepetsa zofooka za mbali iyi, valavu ya butterfly eccentric idawonekera.Theoretical sealing state ndi gawo losindikiza lolumikizana.Opanga ambiri apanga mbali iyi.Vavu yagulugufe wa eccentric ndi yolunjika potengera kuthamanga kwa madzi, makamaka valavu yagulugufe yamitundu itatu.The reverse pressure kunyamula mphamvu ndi yofooka.Chifukwa maukonde a chitoliro ali ngati mphete, zofunikira kuti valavu ikhale ndi mphamvu kumbali zonse ziwiri ndizofanana, choncho chofunikachi chiyenera kutsindika posankha valavu.
2.Oima ndi yopingasa agulugufe mavavu
M'mavavu agulugufe apakati ndi akulu, pali kusiyana pakati pa ma valve opindika ndi opingasa.Nthawi zambiri, ma valve agulugufe oyima amakutidwa ndi dothi lakuya, ndipo zinyalala m'madzi zimatha kukulunga kumapeto kwa shaft ndikukhudza kutsegula ndi kutseka;bokosi losinthira liwiro la mavavu agulugufe opingasa lili pambali.Vavu bwino ali wotakata ndege malo pa msewu, zomwe zimakhudza makonzedwe a mapaipi ena.Choncho, chifukwa cha mavuto omwe ali pamwambawa, ayenera kukhala omveka bwino posankha ma valve: mavavu agulugufe apakati-m'mimba mwake amakhala okwera kwambiri, ndipo ma valve agulugufe amtundu waukulu ayenera kukhala opingasa ngati malo a ndege amaloledwa.Izi sizimangowonjezera kwambiri kayendedwe ka valve, komanso zimathetsa vuto la ma sundries m'madzi ophatikizidwa ndi shaft valve.
3.Chisindikizo chofewa ndi chisindikizo chachitsulo.
Ambiri mwa ma valve agulugufe omwe amagwiritsidwa ntchito popanga madzi ndizofewa zosindikizidwa agulugufe mavavu.Chifukwa cha zovuta zina pakugwiritsa ntchito njira yosindikizirayi, opanga ambiri akhazikitsa ma valve agulugufe osindikizidwa ndi zitsulo kuti alowe m'malo mwa ma valve agulugufe otsekedwa ndi mphira.Tikamasankha zosindikizira zofewa ndi zitsulo zosindikizira zitsulo, tifunikabe kuganizira za mtengo wapatali wa ziwirizo.
①Mavuto akuluakulu osindikizira agulugufe osindikizira omwe amagwiritsidwa ntchito ndi awa: mphira wopanda pake, wosavuta kukalamba, kupunduka kwanthawi yayitali, komanso kusweka kwa extrusion.Choncho, ena opanga nthawi zambiri amasankha labala la EPDM ndi labala la nitrile ndipo amagwiritsa ntchito mphira wachilengedwe pang'ono.Ndizoletsedwa kusakaniza mphira wobwezeretsedwanso kuti apititse patsogolo kukana komanso kukalamba kwa mphete yosindikiza.
②Vavu yagulugufe yosindikizidwa ndi chitsulo nthawi zambiri imatenga kachipangizo kakang'ono, makamaka kamangidwe ka mbali zitatu, chifukwa cha kukhuthala kwakung'ono kwa chisindikizocho.Valve yagulugufe yosindikizidwa ndi zitsulo poyamba inkagwiritsidwa ntchito pamapaipi othamanga kwambiri, ndipo mtengo wake ndi wokwera mtengo.Malo ake osindikizira siwophweka kuti awonongeke panthawi yogwira ntchito, koma kulondola kwake kwapangidwe kumakhala kwakukulu, ndipo ikangotuluka, kumakhala kovuta kukonza.