Valve ya diaphragmndi valavu yotseka yomwe imagwiritsa ntchito diaphragm ngati gawo lotsegula ndi lotseka kuti litseke njira yotuluka, kudula madzimadzi, ndikulekanitsa mkati mwa thupi la valve kuchokera mkati mwa chivundikiro cha valve.Diaphragm nthawi zambiri imapangidwa ndi mphira, pulasitiki ndi zinthu zina zotanuka, zosagwira dzimbiri, komanso zinthu zomwe sizingadutse.Thupi la vavu nthawi zambiri limapangidwa ndi pulasitiki, pulasitiki yolimbitsa magalasi, ceramic kapena zitsulo zokhala ndi mphira.Kapangidwe kosavuta, kusindikiza kwabwino komanso kukana dzimbiri, komanso kutsika kwamadzimadzi.Amagwiritsidwa ntchito pazofalitsa zokhala ndi kuthamanga kwambiri, kutentha pang'ono, corrosiveness wamphamvu ndi nkhani yoyimitsidwa.Malingana ndi kapangidwe kake, pali mtundu wa denga, mtundu wodulidwa, mtundu wa chipata ndi zina zotero.Malingana ndi kayendetsedwe ka galimoto, imagawidwa m'mabuku, pneumatic ndi magetsi.
Mapangidwe a valve ya diaphragm ndi yosiyana kwambiri ndi valavu wamba.Ndi mtundu watsopano wa valve ndi mawonekedwe apadera a valve odulidwa.Mbali yake yotsegula ndi yotsekera ndi diaphragm yopangidwa ndi zinthu zofewa.Mkatikati mwa chivundikirocho ndi gawo loyendetsa galimoto zimalekanitsidwa ndipo tsopano zimagwiritsidwa ntchito kwambiri m'madera osiyanasiyana.Mavavu a diaphragm omwe amagwiritsidwa ntchito kawirikawiri amaphatikizapo ma valve a diaphragm okhala ndi mphira, ma valve a diaphragm okhala ndi fluorine, ma valve a diaphragm opanda mzere, ndi ma valve a pulasitiki a diaphragm.
Vavu ya diaphragm imakhala ndi diaphragm yosinthika kapena diaphragm yophatikizika m'thupi la valavu ndi chivundikiro cha valve, ndipo gawo lake lotseka ndi chipangizo cholumikizira cholumikizidwa ndi diaphragm.Mpando wa valavu ukhoza kukhala wofanana ndi weir, kapena ukhoza kukhala khoma la chitoliro lomwe limadutsa mumtsinje wotuluka.Ubwino wa valve ya diaphragm ndikuti njira yake yogwiritsira ntchito imasiyanitsidwa ndi gawo lapakati, lomwe silimangotsimikizira kuti chiyero cha sing'anga yogwira ntchito, komanso chimalepheretsa kuthekera kwa sing'anga mu payipi kuti zisakhudze mbali zogwirira ntchito.Kuonjezera apo, palibe chifukwa chogwiritsira ntchito mtundu uliwonse wa chisindikizo chosiyana pa tsinde la valve, pokhapokha ngati chikugwiritsidwa ntchito ngati malo otetezera poyang'anira mauthenga owopsa.Mu valavu ya diaphragm, popeza sing'anga yogwira ntchito imangolumikizana ndi diaphragm ndi thupi la valve, zonse zomwe zingagwiritse ntchito zipangizo zosiyanasiyana, valavu imatha kulamulira njira zosiyanasiyana zogwirira ntchito, makamaka zoyenera kuwononga mankhwala kapena kuyimitsidwa. particles medium.Kutentha kogwira ntchito kwa valavu ya diaphragm nthawi zambiri kumakhala kochepa ndi zida zomwe zimagwiritsidwa ntchito pa diaphragm ndi valavu ya thupi, ndipo kutentha kwake kogwira ntchito kumakhala pafupifupi -50 ~ 175 ℃.Valavu ya diaphragm ili ndi dongosolo losavuta, lopangidwa ndi zigawo zazikulu zitatu zokha: thupi la valve, diaphragm ndi msonkhano wa mutu wa valve.Valavu ndiyosavuta kusokoneza ndikukonzanso mwachangu, ndipo m'malo mwa diaphragm imatha kumalizidwa pamalopo komanso kwakanthawi kochepa.
Mfundo ndi kapangidwe ka ntchito:
Valavu ya diaphragm imagwiritsa ntchito thupi lopanda dzimbiri lopanda dzimbiri komanso diaphragm yolimbana ndi dzimbiri m'malo mwa msonkhano wapakati wa valavu, ndipo kusuntha kwa diaphragm kumagwiritsidwa ntchito kusintha.Thupi la valve la diaphragm valve limapangidwa ndi chitsulo choponyedwa, chitsulo chosapanga dzimbiri, kapena chitsulo chosapanga dzimbiri, ndipo chimakhala ndi zinthu zosiyanasiyana zosagwira dzimbiri kapena zosavala, mphira wa diaphragm ndi polytetrafluoroethylene.Mzere wa diaphragm uli ndi kukana kwamphamvu kwa dzimbiri ndipo ndi woyenera kusintha zida zamphamvu zowononga monga asidi amphamvu ndi alkali wamphamvu.
Valavu ya diaphragm ili ndi dongosolo losavuta, kukana kwamadzimadzi otsika, ndi mphamvu yothamanga kwambiri kuposa mitundu ina ya ma valve omwewo;ilibe kutayikira ndipo angagwiritsidwe ntchito kusintha kwa mamasukidwe akayendedwe mkulu ndi inaimitsidwa particulate TV.The diaphragm imalekanitsa sing'anga kuchokera kumtunda kwa tsinde la valve, kotero kulibe sing'anga yolongedza komanso kutayikira.Komabe, chifukwa cha kuchepa kwa diaphragm ndi zida zomangira, kukana kwamphamvu komanso kukana kutentha kumakhala kocheperako, ndipo nthawi zambiri kumakhala koyenera kukakamiza mwadzina kwa 1.6MPa ndi pansi pa 150 ° C.
Kuthamanga kwa valavu ya diaphragm kuli pafupi ndi khalidwe lotsegula mwamsanga, lomwe liri pafupi ndi mzere pamaso pa 60% ya sitiroko, ndipo kuthamanga kwa magazi pambuyo pa 60% sikusintha kwambiri.Ma valve a pneumatic diaphragm amathanso kukhala ndi zizindikiro zowonetsera, zochepetsera ndi zoyikapo kuti zikwaniritse zosowa zodziwongolera zokha, kuwongolera pulogalamu kapena kusintha koyenda.Chizindikiro cha valavu cha pneumatic diaphragm chimatenga ukadaulo wosalumikizana.Chogulitsacho chimatenga silinda yamtundu wa nembanemba m'malo mwa silinda ya pistoni, ndikuchotsa kuipa kwa mphete ya pistoni, kupangitsa kutayikira ndikulephera kukankha valavu kuti itsegule ndi kutseka.Pamene gwero la mpweya likulephera, gudumu lamanja likhoza kuyendetsedwa kuti litsegule ndi kutseka valve.
Mfundo yosindikizira ya valavu ya diaphragm ndikudalira kutsika kwa makina ogwiritsira ntchito kuti akanikizire diaphragm kapena msonkhano wa diaphragm ndi njira ya thupi lamtundu wa valavu yamtundu wa weir kapena thupi la valve yowongoka kuti akwaniritse chisindikizo. .Kupanikizika kwapadera kwa chisindikizo kumatheka ndi kutsika kwapansi kwa membala wotseka.Popeza valavu thupi akhoza alimbane ndi zipangizo zosiyanasiyana zofewa, monga mphira kapena polytetrafluoroethylene, etc.;diaphragm imapangidwanso ndi zipangizo zofewa, monga mphira kapena mphira wopangidwa ndi polytetrafluoroethylene, kotero ukhoza kupindula ndi mphamvu yaing'ono yosindikiza Kusindikizidwa kwathunthu.
Mavavu a diaphragm ali ndi zigawo zazikulu zitatu zokha: thupi, diaphragm ndi msonkhano wa bonnet.The diaphragm imalekanitsa mkati mwa thupi la m'munsi mwa valavu kuchokera mkati mwa chivundikiro chapamwamba cha valve, kotero kuti tsinde la valve, nthiti ya valve, valve clack, pneumatic control mechanism, magetsi oyendetsa magetsi ndi mbali zina zomwe zili pamwamba pa diaphragm zisakhale. kukumana ndi sing'anga, ndipo palibe sing'anga yomwe imapangidwa.Kutulutsa kwakunja kumapulumutsa mawonekedwe osindikiza a bokosi lodzaza.
Kumene valavu ya diaphragm ikugwira ntchito
Valavu ya diaphragm ndi mtundu wapadera wa valve yotseka.Mbali yake yotsegula ndi yotsekera ndi diaphragm yopangidwa ndi zinthu zofewa, zomwe zimalekanitsa mkati mwa thupi la valve kuchokera mkati mwa chivundikiro cha valve.
Chifukwa cha kuchepa kwa valavu ya thupi la valve ndi kupanga mapangidwe a diaphragm, chiwombankhanga chachikulu cha ma valve ndi njira yaikulu yopanga diaphragm ndizovuta.Chifukwa chake, valavu ya diaphragm siyenera kukhala ndi ma diameter akulu, ndipo imagwiritsidwa ntchito pamapaipi omwe ali pansi pa DN200.Panjira.
Chifukwa cha kuchepa kwa zinthu za diaphragm, valavu ya diaphragm ndiyoyenera kutsika kwambiri komanso kutentha kwapansi.Nthawi zambiri, musapitirire 180 ° C.Chifukwa valavu ya diaphragm imakhala ndi ntchito yabwino yolimbana ndi dzimbiri, imagwiritsidwa ntchito pazida zowononga zapa media ndi mapaipi.Chifukwa kutentha kwa ntchito ya valavu ya diaphragm kumakhala kochepa ndi njira yogwiritsira ntchito ya diaphragm valve body lining material ndi diaphragm material.
Mawonekedwe:
(1) Mphamvu yamadzimadzi ndiyochepa.
(2) Itha kugwiritsidwa ntchito ngati sing'anga yomwe ili ndi zolimba zoyimitsidwa;popeza sing'anga amangokhudza valavu thupi ndi diaphragm, palibe chifukwa stuffing bokosi, palibe vuto la stuffing bokosi kutayikira, ndipo palibe dzimbiri ndi tsinde valavu.
(3) Yoyenera kuwononga, viscous, ndi slurry media.
(4) Sangagwiritsidwe ntchito pazovuta kwambiri.
Kuyika ndi kukonza:
① Musanayike valavu ya diaphragm, yang'anani mosamala ngati momwe ma payipi amagwirira ntchito akugwirizana ndi kuchuluka kwa ntchito yomwe yafotokozedwa ndi valavuyi, ndikutsuka mkatikati kuti dothi lisagwedezeke kapena kuwononga magawo osindikiza.
②Musagwiritse ntchito mafuta kapena mafuta pamwamba pa mphira wa rabara ndi diaphragm ya mphira kuti muteteze mphira kuti asatupe komanso kukhudza moyo wautumiki wa valve ya diaphragm.
③Gulo lamanja kapena makina otumizira saloledwa kugwiritsidwa ntchito pokweza, ndipo kugunda ndikoletsedwa.
④ Mukamagwiritsa ntchito valavu ya diaphragm pamanja, musagwiritse ntchito zida zothandizira kuti muteteze torque yochulukirapo kuti isawononge zida zagalimoto kapena magawo osindikiza.
⑤Ma valve a diaphragm ayenera kusungidwa m'chipinda chowuma ndi mpweya wabwino, kusungirako sikuloledwa, mapeto onse a valve diaphragm ayenera kusindikizidwa, ndipo mbali zotsegula ndi zotseka ziyenera kukhala zotseguka pang'ono.
Nthawi yotumiza: Dec-03-2021