Malangizo osankha ma valve

1. Kusankhidwa kwa valve yachipata

Kawirikawiri, ma valve a zipata ayenera kukhala abwino.Mavavu pachipata si oyenera nthunzi, mafuta ndi TV zina, komanso sing'anga munali zolimba granular ndi mamasukidwe akayendedwe lalikulu, ndi oyenera mpweya ndi otsika zingalowe dongosolo mavavu.Kwa media yokhala ndi tinthu tolimba, thupi la valve pachipata liyenera kukhala ndi bowo limodzi kapena awiri otsuka.Kwa sing'anga yotsika kutentha, valavu yapadera yotsika yachipata iyenera kusankhidwa.

2. Kufotokozera za kusankha valavu ya globe  

Globe valavu ndi oyenera madzimadzi kukana amafuna payipi, ndiko kuti, kutaya kuthamanga sikuganiziridwa, ndi kutentha, mkulu kuthamanga sing'anga payipi kapena chipangizo, oyenera DN <200mm nthunzi ndi payipi zina TV;Ma valve ang'onoang'ono amatha kusankha valavu yapadziko lonse lapansi, monga valavu ya singano, valavu yachitsulo, valavu yachitsanzo, valavu yamagetsi, ndi zina zotero. Vavu ya Globe ili ndi kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake. , ayenera kusankha valavu padziko lonse kapena valavu throttle;Kwa sing'anga yapoizoni kwambiri, ndi koyenera kusankha valavu yosindikizidwa ya globe;Komabe, valavu yapadziko lonse lapansi siyenera kugwiritsidwa ntchito ngati sing'anga yokhala ndi mamasukidwe akulu komanso sing'anga yokhala ndi tinthu tating'ono tosavuta kutulutsa, komanso sayenera kugwiritsidwa ntchito ngati valavu yotulutsa mpweya ndi vacuum system valve.

3, Bmalangizo onse osankhidwa a valve 

Vavu ya mpira ndi yoyenera kutentha kochepa, kuthamanga kwambiri, kukhuthala kwapakati.Mavavu ambiri a mpira amatha kugwiritsidwa ntchito ndi tinthu tating'onoting'ono tapakatikati, malinga ndi zofunikira zosindikizira zitha kugwiritsidwanso ntchito ngati ufa ndi media granular;Valavu ya mpira wanjira zonse siyoyenera kuwongolera kuyenda, koma ndi yoyenera pazochitika zomwe zimafuna kutsegulidwa ndi kutseka mwachangu, zomwe ndi zabwino pakuzindikira ngozi zadzidzidzi;Nthawi zambiri pamakina osindikizira, kuvala, shrinkage channel, kutsegula ndi kutseka mwamsanga, kuthamanga kwakukulu (kusiyana kwapakati), phokoso lochepa, chodabwitsa cha gasification, torque yaing'ono yogwiritsira ntchito, kukana kwamadzimadzi pang'ono mu payipi, analimbikitsa kugwiritsa ntchito valavu ya mpira. ;Vavu ya mpira ndiyoyenera mawonekedwe opepuka, otsika kuthamanga odulidwa, media zowononga;Mpira valavu kapena kutentha otsika, sing'anga cryogenic ndi valavu abwino kwambiri, otsika kutentha sing'anga dongosolo payipi ndi chipangizo, ayenera kugwiritsidwa ntchito ndi valavu chivundikiro otsika kutentha mpira valavu;Kusankha zoyandama mpira valavu valavu mpando zinthu ayenera kuchita mpira ndi ntchito sing'anga katundu, lalikulu m'mimba mwake mpira valavu ntchito kumafuna mphamvu yaikulu, DN≥200mm valavu mpira ayenera kusankhidwa nyongolotsi zida kufala mawonekedwe;Vavu ya mpira yosasunthika ndi yoyenera m'mimba mwake yokulirapo komanso nthawi zopanikizika kwambiri;Kuphatikiza apo, valavu ya mpira yomwe imagwiritsidwa ntchito popanga zinthu zapoizoni kwambiri, payipi yapakatikati yoyaka, iyenera kukhala ndi mawonekedwe osawotcha, odana ndi malo amodzi.

4, Tmalangizo osankha ma valve a hrottle 

Valavu ya Throttle ndiyoyenera kutentha kwapakatikati ndi yotsika, nthawi yothamanga kwambiri, yoyenera kufunikira kosinthira magawo otaya ndi kupanikizika, sikoyenera kukhuthala ndipo imakhala ndi tinthu tating'onoting'ono, osati ngati valavu yogawa.

 

5, Pmalangizo osankhidwa a lug valve

Pulagi valve ndi yoyenera kutsegulira ndi kutseka mwachangu, nthawi zambiri siyenera kutenthetsa ndi kutentha kwapakati, kutentha kochepa, sing'anga yama viscosity, komanso yoyenera sing'anga yokhala ndi tinthu tapang'onopang'ono.

6, Bmalangizo osankhidwa a valve utterfly

Vavu ya gulugufe ndi yoyenera m'mimba mwake yayikulu (monga DN> 600mm) ndi zofunikira zazifupi zamapangidwe, komanso kufunikira kwa kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake madzi, mafuta ndi wothinikizidwa mpweya ndi zina;Poyerekeza ndi mavavu a zipata ndi ma valve a mpira, ma valve agulugufe ndi oyenera machitidwe a mapaipi omwe ali ndi zofunikira zotayika.

7, Cchani vavu malangizo kusankha

Mavavu owunika nthawi zambiri amakhala oyenera pa media zoyera, osati pazofalitsa zomwe zimakhala ndi tinthu tolimba komanso kukhuthala.Pamene DN≤40mm, ntchito kukweza mavavu cheke (zololedwa kuikidwa pa mipope yopingasa);Pamene DN = 50 ~ 400mm, ndi koyenera kugwiritsa ntchito swing kukweza valavu cheke (paipi yopingasa ndi ofukula akhoza kuikidwa, monga anaika mu ofukula payipi, sing'anga otaya kuchokera pansi mpaka pamwamba);Pamene DN≥450mm, valavu yowunikira mtundu wa bafa iyenera kugwiritsidwa ntchito;Pamene DN = 100 ~ 400mm akhoza kusankha valavu yopyapyala cheke;Swing cheke valavu ikhoza kupangidwa ndi kuthamanga kwambiri, PN mpaka 42MPa, malinga ndi chipolopolo ndi zinthu zosindikizira zingagwiritsidwe ntchito pa sing'anga iliyonse ndi kutentha kulikonse.Sing'anga ndi madzi, nthunzi, gasi, sing'anga zowononga, mafuta, mankhwala, ndi zina. Kutentha kwa sing'anga kumakhala pakati pa -196 ℃ ndi 800 ℃.

 

8, Dmalangizo osankhidwa a valve ya iphragm 

valavu diaphragm ndi oyenera ntchito kutentha ndi zosakwana 200 ℃, kuthamanga ndi zosakwana 1.0MPa mafuta, madzi, sing'anga acidic ndi sing'anga inaimitsidwa, si oyenera solvents organic ndi sing'anga amphamvu oxidant;Abrasive granular sing'anga ayenera kusankha weir diaphragm valavu, valavu diaphragm ayenera kutanthauza otaya makhalidwe tebulo;Viscous fluid, simenti slurry ndi sing'anga mpweya ayenera kusankha molunjika kudzera diaphragm valve;Mavavu a diaphragm sayenera kugwiritsidwa ntchito pa mizere ya vacuum ndi vacuum vacuum pokhapokha atatchulidwa.

Ma valve amasiyana pamagwiritsidwe ntchito, kuchuluka kwa ntchito ndi ntchito.Kuwongolera kapena kuthetsa kutayikira kwakung'ono, ma valve ndi zida zofunika kwambiri komanso zofunika kwambiri.Kuphunzira kusankha valavu yoyenera ndikofunikira.

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