Makasitomala akagula mavavu agulugufe atatu, nthawi zambiri amatanthawuza mitundu iwiri ya zomangira, imodzi ndi chitsulo kupita kumpando wachitsulo ndipo inayo ndi yamitundu yambiri;ali ndi mapangidwe osiyanasiyana komanso mitengo yake ndi yosiyana kwambiri.Kenako, tiyeni tikambirane kusiyana pakati pa mavavu agulugufe okhala ndi zitsulo zonse ndi mavavu agulugufe osindikizira amitundu yambiri.
1. Makhalidwe a zitsulo kukhala zitsulo mpando agulugufe mavavu
Mavavu agulugufe okhala ndi zitsulo mpaka zitsulo ndi valavu yagulugufe yokhala ndi njira yosavuta yosindikizira, yomwe imakhala ndi thupi la valve, mbale ya valve, shaft ya valve ndi mphete yonse yosindikiza zitsulo.Ili ndi mawonekedwe ophatikizika komanso kutseguka kosinthika ndi kutseka, kotero imagwiritsidwa ntchito kwambiri pamavuto otsika, kuyenda pang'ono, kutentha kwakukulu ndi tinthu tating'ono ta fumbi.
Pambuyo potsegula mbale ya valve, mpando wa valve wa thupi la valve uli pafupi ndi mphete yosindikiza.Pamene mbale ya valve imatsekedwa molunjika kumadzimadzi, tinthu tating'onoting'ono tamadzimadzi timene timakhala tambirimbiri kapena tolimba kwambiri, zomwe zimayambitsa kukangana pampando wa valve kapena mphete yosindikizira, zomwe zimayambitsa Kuwonongeka kwa mpando wa valve kapena mphete yosindikizira imalepheretsa kusindikiza kwathunthu.Ichi ndi chimodzi mwa zolakwa za zitsulo kukhala zitsulo mpando valavu gulugufe, chifukwa kusintha pafupipafupi kumabweretsa mikangano kuchuluka ndipo motero zimakhudza moyo utumiki.
2. Makhalidwe a multilayer triple eccentric butterfly valve
Mipikisano wosanjikiza agulugufe valavu ndi valavu gulugufe ndi zovuta kusindikiza dongosolo.Mphete yosindikiza nthawi zambiri imakhala ndi zigawo ziwiri kapena zingapo, zokhala ndi zigawo zingapo zosindikizira pakati.Thupi la valavu ndi mbale ya valve ya gulugufe wamitundu yambiri amasonkhanitsidwa m'magulu.Chigawo chilichonse chimakhala ndi mawonekedwe odziyimira pawokha, omwe amatha kuchepetsa chiopsezo cha kutayikira.Chifukwa ndi chisindikizo chamitundu yambiri, ngakhale pali tinthu tating'onoting'ono pakatikati pa nthawi yotseka, malinga ngati ma interlayers onse sakuwonongeka, ngakhale kuti gawo limodzi lokha silinawonongeke, ntchito yosindikiza sichidzakhudzidwa.
Ma valve agulugufe ambiri osanjikiza nthawi zambiri amagwiritsidwa ntchito pakapanikiza kwambiri komanso pakuyenda kwakukulu, monga mafuta osakhazikika, gasi, madzi ndi mapaipi ena akumafakitale.Kutentha kwa ntchito kuli pakati pa -29 madigiri mpaka 425 madigiri.Zinthu za WCB ndiye chisankho chotsika mtengo kwambiri.
3. Kusiyana pakati pa zitsulo ndi mavavu agulugufe zitsulo ndi mavavu agulugufe amitundu yambiri
1) kufanana kwa mitsinje iwiri ya agulugufe
Onsevalavu ya butterfly yachitsulo kupita kuchitsulondi valavu yagulugufe yamitundu yambiri imatha kukwaniritsa kusindikiza kwa njira imodzi kapena kusindikiza njira ziwiri.Malinga ndi zosowa za ogwiritsa ntchito, mphete imodzi kapena zingapo zosindikizira zitha kusinthidwa kuti zikhale zosavuta kuzisintha ngati zitagwiritsidwa ntchito molakwika, ndipo zidapangidwa kuti zikhale zosunthika zanjira ziwiri.Ubwino wa kapangidwe kameneka ndikuti mpando wa valve ndi mphete yosindikizira zitha kusinthidwa pa intaneti, ndipo zida siziyenera kukhala pa intaneti kuti zikonzedwe.Panthawi imodzimodziyo, onse ali ndi ubwino wokhala ndi mphamvu zowonjezereka.
2) kusiyana pakati pa mitundu iwiri ya agulugufe
Kusiyana kwakukulu kuli pamapangidwe ndi zochitika zogwiritsira ntchito.
① kusiyana kwa kapangidwe
Multilayer butterfly valve
· Mapangidwe a valavu yamagulugufe amitundu yambiri ndi mapepala azitsulo ndi ma graphite, zomwe zikutanthauza kuti mphete yosindikizira nthawi zambiri imakhala ndi zigawo ziwiri kapena zingapo, ndi zigawo zingapo zosindikizira pakati.Thupi la valavu ndi mbale ya valve ya gulugufe wamitundu yambiri amasonkhanitsidwa m'magulu, ndipo gawo lililonse limakhala ndi mawonekedwe osindikiza odziimira.
· Chosindikizira chosindikizira chazitsulo zonse ziwiri zosindikizira gulugufe, ndiko kuti, mphete yosindikizira ndi mpando wa valve, amapangidwa ndi zitsulo zonse.Mphete yosindikizira imatha kukhala pamwamba kapena kupopera utoto ndi ma aloyi osiyanasiyana osamva komanso osagwira kutentha.
Onse zitsulo mpando butterfly vavu
② Kugwiritsa ntchito
The Metal to metal butterfly valve ndi yoyenera kutsika kwapansi, kuyenda kochepa, ndi kutentha kwakukulu;valavu yagulugufe yamitundu yambiri imakhala ndi mawonekedwe osindikizira amitundu yambiri, omwe amatha kuchepetsa chiopsezo cha kutayikira.
4. Kusindikiza kwachitsulo mpaka chitsulo kwa mavavu agulugufe ndi mavavu agulugufe amitundu yambiri
Malinga ndi muyezo wa API598, valavu yagulugufe yokhala ndi chitsulo cholimba imatha kukhala ndi kutayikira, koma valavu yagulugufe yokhala ndi mphete zosindikizira zambiri imatha kukwaniritsa kusindikiza kwa 0 ndipo imakhala ndi kusindikiza kwapamwamba.
5. Zida za mavavu agulugufe osindikiza zitsulo zonse ndi mavavu agulugufe osindikizira amitundu yambiri
·Chisindikizo chazitsulo chonse: Mpando wa valve nthawi zambiri umakhala ndi Stellite, thupi ndi WCB, SS304, SS316, SS2205, SS2507, ndi mphete yosindikizira ya valve imatha kusankhidwa malinga ndi zinthu za mbale ya valve;
·Mphete yosindikizira yamitundu yambiri: Zida zapampando wa vavu: Stellite, kapena zakuthupi, mphete yosindikiza ya valve nthawi zambiri imagwiritsa ntchito RPTFE/PTFE + zitsulo, graphite + zitsulo;
Kawirikawiri, ma valve a butterfly pamutu ndi ma valve agulugufe amitundu yambiri ali ndi zochitika zomwe zimagwira ntchito, ndipo ogwiritsa ntchito amatha kusankha mtundu woyenera wa agulugufe malinga ndi momwe zinthu zilili.Posankha valavu ya butterfly, magawo monga kuthamanga kwa madzi, kutentha, kuthamanga kwa madzi ndi sing'anga ayenera kuganiziridwa kuti asankhe mtundu wa valve butterfly ndi kuonetsetsa kuti valavu ikugwira ntchito bwino.
Ngati kutentha kuli kwakukulu kwambiri ndipo kulibe tinthu tating'onoting'ono, mutha kusankha valavu yagulugufe yazitsulo zonse zolimba.
Ngati kutentha sikuli kokwera kwambiri ndipo sing'angayo imakhala ndi tinthu tating'onoting'ono, sankhani valavu yagulugufe yamtengo wapatali yotsika kwambiri.