Mfundo zazikuluzikulu za kusankha ma valve ndikufupikitsidwa
Zambiri zama media mu zida zopangira mankhwala zimakhala ndi kawopsedwe wambiri, woyaka, wophulika komanso wowononga. Makhalidwe ogwirira ntchito ndi ovuta komanso ovuta, ndipo kutentha kwa ntchito ndi kupanikizika ndipamwamba. Vavu ikalephera, kuwalako kudzatsogolera kutayikira kwapakatikati, zolemetsa zidzatsogolera kutseka kwa chipangizocho, ndipo ngakhale kuyambitsa ngozi zowopsa. Choncho, kusankha kwasayansi ndi koyenera kwa valve sikungathe kuchepetsa mtengo wa zomangamanga wa chipangizocho, komanso kuonetsetsa kuti ntchito yotetezeka ikugwira ntchito. Tiye tikambiranekusankha vavu!
Zambiri zama media mu zida zopangira mankhwala zimakhala ndi kawopsedwe wambiri, woyaka, wophulika komanso wowononga. Makhalidwe ogwirira ntchito ndi ovuta komanso ovuta, ndipo kutentha kwa ntchito ndi kupanikizika ndipamwamba. Vavu ikalephera, kuwalako kudzatsogolera kutayikira kwapakatikati, zolemetsa zidzatsogolera kutseka kwa chipangizocho, ndipo ngakhale kuyambitsa ngozi zowopsa. Choncho, kusankha kwasayansi ndi koyenera kwa valve sikungathe kuchepetsa mtengo wa zomangamanga wa chipangizocho, komanso kuonetsetsa kuti ntchito yotetezeka ikugwira ntchito. Tilankhule za kusankha vavu!
Mfundo zazikuluzikulu za kusankha ma valve
1 Vavu yoyera pazida kapena kugwiritsa ntchito zida
Dziwani momwe ma valve amagwirira ntchito: chikhalidwe cha sing'anga yoyenera, kuthamanga kwa ntchito, kutentha kwa ntchito ndi kayendetsedwe ka ntchito.
Sankhani mtundu woyenera wa vavu
Kusankha koyenera kwa mtundu wa valavu kumatengera wopanga njira yonse yopangira, kumvetsetsa kwathunthu kwa magwiridwe antchito monga chofunikira, posankha mtundu wa valavu, wopangayo ayenera kudziwa kaye mawonekedwe ndi magwiridwe antchito a valve iliyonse.
Dziwani kugwirizana kotsiriza kwa valve
Mu kugwirizana ulusi, flange kugwirizana, kuwotcherera mapeto kugwirizana, awiri oyambirira mitundu wamba. Mavavu okhala ndi ulusi makamaka mavavu okhala ndi m'mimba mwake pansi pa 50mm. Ngati kukula kwake kuli kwakukulu kwambiri, kukhazikitsa ndi kusindikiza kugwirizana kumakhala kovuta kwambiri.
Ma valve opangidwa ndi flanged ndi osavuta kukhazikitsa ndi kuchotsa, koma ndi okwera mtengo komanso okwera mtengo kuposa ma valve opangidwa ndi ulusi, choncho ndi oyenerera kulumikiza mapaipi amitundu yosiyanasiyana ndi zovuta.
The welded kugwirizana ndi odalirika kuposa kugwirizana flanged, amene ali oyenera Mumakonda zinthu. Koma kuwotcherera valavu disassembly ndi reinstallation n'kovuta kwambiri, choncho ntchito yake nthawi zambiri mu ntchito yodalirika yaitali, kapena ntchito zinthu potsegula, nthawi kutentha mkulu.
4. Kusankhidwa kwa zinthu za valve
Kusankhidwa kwa chipolopolo cha valve, ziwalo zamkati ndi zosindikizira pamwamba, kuwonjezera pa kulingalira zakuthupi za sing'anga yogwira ntchito (kutentha, kuthamanga) ndi katundu wa mankhwala (kudzimbirira), ayeneranso kudziwa kuchuluka kwa ukhondo wamagulu (wokhala ndi kapena opanda tinthu tating'onoting'ono tolimba). ), kuwonjezera, komanso kutchula zofunikira za boma ndi kugwiritsa ntchito madipatimenti.
Kusankha kolondola komanso koyenera kwa zida za valve kumatha kupeza moyo wabwino kwambiri wazachuma komanso magwiridwe antchito abwino a valve. Mavavu osankhidwa a zinthu zakuthupi: chitsulo choponyedwa - chitsulo cha kaboni - chitsulo chosapanga dzimbiri, dongosolo losankhira zinthu za mphete: mphira - mkuwa - chitsulo cha alloy -F4.
Zina zisanu
ZOWONJEZERA, KUSINTHA KWA FLOW NDI KUPIRITSIDWA KWA FLUID WOYANG'ANIRA KUPYOlera mu valavu kuyenera kutsimikiziridwa, NDI valavu yoyenera iyenera kusankhidwa pogwiritsa ntchito zomwe zilipo (mwachitsanzo, kabukhu la mankhwala a valve, chitsanzo cha mankhwala a valve, ndi zina zotero).
Kufotokozera za kusankha wamba mtundu wa valve
Kufotokozera kwa kusankha mtundu wa valve pachipata
Kawirikawiri, valavu yachipata iyenera kuperekedwa patsogolo. Chipata valavu kuwonjezera oyenera nthunzi, mafuta ndi TV zina, komanso ntchito muli granular olimba ndi mamasukidwe akayendedwe a sing'anga, ndi oyenera polowera ndi otsika zingalowe dongosolo mavavu. Kwa sing'anga yokhala ndi tinthu tating'onoting'ono, thupi la valve ya pachipata lidzaperekedwa ndi bowo limodzi kapena awiri. Kwa sing'anga yotsika kutentha, valavu yachipata yotsika iyenera kusankhidwa.
2. Kufotokozera za kusankha ma valve odulidwa
Globe valavu ndi oyenera madzimadzi kukana zofunika si okhwima pa payipi, ndiye, kuthamanga imfa si amaganiziridwa, ndi kutentha, mkulu kuthamanga sing'anga payipi kapena chipangizo, oyenera DN Valavu yaying'ono imatha kusankha valavu yapadziko lonse lapansi, monga valavu ya singano, valavu ya zida, valavu yachitsanzo, valavu yoyezera kuthamanga, etc.;
Valve yapadziko lonse lapansi imakhala ndi malamulo oyendetsera kapena kuwongolera kupanikizika, koma kulondola kosintha sikuli kokwera, ndipo m'mimba mwake ya chitoliro ndi yaying'ono, ndikofunikira kusankha valavu yapadziko lonse lapansi kapena valavu yopumira;
Kwa sing'anga yapoizoni kwambiri, ndi koyenera kusankha valavu yosindikizidwa ya globe; Koma valavu yapadziko lonse lapansi siyenera kugwiritsidwa ntchito ngati sing'anga yokhala ndi mamasukidwe akulu komanso sing'anga yokhala ndi tinthu tosavuta kutulutsa, ndipo sayenera kugwiritsidwa ntchito ngati valavu yotulutsa mpweya komanso valavu yamagetsi otsika.
3. Kufotokozera za kusankha vavu mpira
Vavu ya mpira ndi yoyenera kutentha kochepa, kuthamanga kwambiri, kukhuthala kwapakati. Mavavu ambiri mpira angagwiritsidwe ntchito sing'anga ndi inaimitsidwa particles olimba, malinga ndi kusindikiza zinthu zofunika angagwiritsidwe ntchito mu ufa ndi granular media;
Valavu yamtundu uliwonse siyoyenera kuyendetsa kayendedwe, koma ndiyoyenera kutsegulira mwachangu ndi kutseka nthawi, zosavuta kukwaniritsa kudulidwa mwadzidzidzi; Nthawi zambiri pakusindikiza mwamphamvu, kuvala, kutsika kwa njira, kutsegula ndi kutseka mwachangu, kutsika kwamphamvu (kusiyana kwakukulu), phokoso lotsika, chodabwitsa cha gasification, torque yaying'ono, kukana madzimadzi, kugwiritsa ntchito mavavu a mpira kumalimbikitsidwa.
Vavu ya mpira ndiyoyenera mawonekedwe opepuka, otsika kuthamanga odulidwa, media zowononga; Mpira valavu kapena kutentha otsika, sing'anga cryogenic wa valavu abwino, otsika kutentha sing'anga mapaipi dongosolo ndi chipangizo, ayenera kusankhidwa ndi otsika kutentha valavu mpira chivundikirocho;
Zida zoyandama zapampando wa mpira woyandama ziyenera kunyamula mpirawo ndi sing'anga yogwirira ntchito, valavu yayikulu ya mpira ikugwira ntchito imafuna mphamvu yayikulu, DN≥
200mm valavu mpira ayenera kusankha mphutsi zida kufala mawonekedwe; Vavu ya mpira yosasunthika ndi yoyenera m'mimba mwake yokulirapo komanso nthawi zothamanga kwambiri; Kuphatikiza apo, valavu ya mpira yomwe imagwiritsidwa ntchito popanga zinthu zapoizoni kwambiri, payipi yapa media yoyaka, iyenera kukhala ndi moto, mawonekedwe odana ndi malo amodzi.
4. Kufotokozera za kusankha valve throttle
Valavu ya Throttle ndi yoyenera kutentha kwapakati, nthawi yothamanga kwambiri, yoyenera kufunikira kosintha kayendedwe ka kayendedwe kake ndi kupanikizika, osati kukhuthala komanso kukhala ndi tinthu tating'onoting'ono, sayenera kugwiritsidwa ntchito ngati valve block.
Kufotokozera za kusankha mtundu wa valve
Pulagi valve ndi yoyenera kutsegulira ndi kutseka kofulumira, nthawi zambiri sikuyenera kutenthedwa ndi kutentha kwapakati, kutentha kochepa, sing'anga yama viscosity, komanso yoyenera sing'anga yokhala ndi particles zoyimitsidwa.
Kufotokozera za kusankha mtundu wa valavu ya butterfly
Vavu yagulugufe 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 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 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 kamwe kapabubu kapabumwemwemwemwemwemwe au kushongani izwi ngu …
80 ℃, kuthamanga ≤1.0MPa madzi, mafuta ndi mpweya wothinikizidwa ndi media zina; Chifukwa cha valavu yagulugufe yokhudzana ndi valavu yachipata, kuthamanga kwa valve ya mpira kumakhala kwakukulu, kotero valavu ya butterfly ndiyoyenera kuti kutayika kwa kupanikizika sikuli kokhwima mumayendedwe a mapaipi.
Kufotokozera za kusankha ma valve
Chongani valavu nthawi zambiri ndi oyenera TV woyera, sayenera kugwiritsidwa ntchito sing'anga munali particles olimba ndi mamasukidwe akayendedwe lalikulu. Pamene ≤40mm, ndi bwino kugwiritsa ntchito valve yowunikira (* yololedwa kuyika paipi yopingasa); Pamene DN = 50 ~ 400mm, ndi koyenera kugwiritsa ntchito swing mtundu Nyamulani valavu (mu yopingasa ndi ofukula payipi akhoza kuikidwa, monga anaika mu ofukula payipi, sing'anga otaya kuchokera pansi mmwamba);
Pamene DN≥450mm, valavu yoyendera mtundu wa buffer iyenera kugwiritsidwa ntchito; Pamene DN = 100 ~ 400mm akhoza kusankha valavu achepetsa mtundu; Swing cheke valavu ikhoza kupangidwa ndi kuthamanga kwambiri kogwira ntchito, PN imatha kufika 42MPa, malinga ndi chipolopolo ndi zinthu zosindikizira zingagwiritsidwe ntchito pamtundu uliwonse wogwira ntchito ndi kutentha kulikonse.
Sing'anga ndi madzi, nthunzi, gasi, sing'anga zikuwononga, mafuta, mankhwala, etc. The ntchito kutentha osiyanasiyana sing'anga ndi pakati -196 ℃ ndi 800 ℃.
Kufotokozera za kusankha ma valve a diaphragm
valavu diaphragm ndi oyenera ntchito kutentha zosakwana 200 ℃, kuthamanga zosakwana 1.0MPa mafuta, madzi, asidi sing'anga ndi sing'anga munali nkhani inaimitsidwa, si oyenera zosungunulira organic ndi sing'anga amphamvu oxidant;
Abrasive granular sing'anga ayenera kusankha weir diaphragm valavu, kusankha weir diaphragm valavu kutchula otaya makhalidwe tebulo; Viscous fluid, simenti slurry ndi sing'anga mpweya ayenera kusankhidwa molunjika kudzera diaphragm valve; Pokhapokha ngati tafotokozedwa mwanjira ina, valavu ya diaphragm sayenera kugwiritsidwa ntchito pa mizere yopuma ndi zida zochotsera.
Nthawi yotumiza: Oct-14-2022
