Njira yochizira kutayikira kwa ma valve ndi mavavu Kodi valavu imayenera kukhazikitsa mfundo ndi Zikhazikiko za valve yodutsa?

Njira yochizira kutayikira kwa ma valve ndi mavavu Kodi valavu imayenera kukhazikitsa mfundo ndi Zikhazikiko za valve yodutsa?

Pewani mabawuti molingana ndi ma symmetrically. Ngati ndi kotheka, gwiritsani ntchito wrench ya torque. Kulowetsedwa koyambirira kuyenera kukwaniritsa zofunikira osati zazikulu kapena zazing'ono. Payenera kukhala chololeza china chololeza pagulu la flange ndi ulusi. Msonkhano wa gasket uyenera kugwirizanitsidwa ndi pakati ndipo mphamvuyo ikhale yofanana. The gasket lap ndi awiri gasket saloledwa.
Chifukwa:
1, kusindikiza pamwamba akupera osagwirizana, sangathe kupanga mzere pafupi.
2. Kugwirizana pakati pa tsinde ndi gawo lotseka kumaimitsidwa, osati molunjika kapena kuvala.
3, kupindika kwa tsinde la valve kapena kusonkhana sikuli kolondola, kotero kuti gawo lotseka ndilokhota kapena osati pakati.
4. Kusankhidwa kosayenera kwa kusindikiza pamwamba pa khalidwe lapamwamba kapena kusasankhidwa kwa valve malinga ndi momwe ntchito ikugwirira ntchito.
Njira zopewera ndi kuchotsa:
1. Sankhani moyenera zinthu ndi mtundu wa bouncing gasket malinga ndi momwe ntchito ikugwirira ntchito.
2, kusintha mosamala, ntchito yosalala.
3, ayenera wogawana ndi symmetrically wononga bawuti, ngati n'koyenera, ayenera kugwiritsa ntchito makokedwe wrench, preload ayenera kukwaniritsa zofunika, osati lalikulu kwambiri kapena laling'ono. Payenera kukhala chololeza china chololeza pagulu la flange ndi ulusi.
4, msonkhano wa gasket uyenera kulumikizidwa, mphamvu ndi yunifolomu, lapu ya gasket ndi kugwiritsa ntchito gasket iwiri sikuloledwa.
5, malo amodzi kusindikiza pamwamba dzimbiri, processing kuwonongeka, processing khalidwe si mkulu, ayenera kukonzedwa, akupera, mitundu anayendera, kupanga malo amodzi kusindikiza pamwamba kukwaniritsa zofunika.
6. Mukayika gasket, chidwi chiyenera kulipidwa pakuyeretsa, kusindikiza pamwamba kuyenera kukhala palafini, ndipo gasket sayenera kugwa pansi.
Kodi valavu ikufunika kukhazikitsa mfundo za valve yodutsa ndi Zokonda? Nthawi zina timawona ma valve akuluakulu m'mapaipi ena, ndipo nthawi zonse mumakhala mavavu odutsa. Chifukwa chiyani? Kodi ntchito yake yaikulu ndi yotani? Ndi zinthu ziti zomwe ziyenera kukhazikitsidwa? Kodi valavu ya bypass ya zida zofananira ndi chiyani? M'malo mwake, valavu yodutsa imayikidwa mu payipi, ndipo udindo wake ukhoza kugawidwa m'zigawo ziwiri: imodzi ndi yotetezera (kupanikizika kwapakati pa malekezero onse awiri), inayo ndi yoyimilira mwadzidzidzi!
Nthawi zina timawona ma valve akuluakulu m'mapaipi ena, ndipo nthawi zonse mumakhala mavavu odutsa. Chifukwa chiyani? Kodi ntchito yake yaikulu ndi yotani? Ndi zinthu ziti zomwe ziyenera kukhazikitsidwa? Kodi valavu ya bypass ya zida zofananira ndi chiyani?
M'malo mwake, valavu yodutsa imayikidwa mu payipi, ndipo udindo wake ukhoza kugawidwa m'zigawo ziwiri: imodzi ndi yotetezera (kupanikizika kwapakati pa malekezero onse awiri), inayo ndi yoyimilira mwadzidzidzi!
Choyamba, zotsatira zotetezera, zikhoza kunenedwa kuti ndizo chitetezo cha valavu yaikulu, kuteteza valavu isanayambe komanso itatha kusiyana kwa kuthamanga kuli kwakukulu kwambiri, ndipo kumayambitsa kukaniza kotseguka, valavu si yabwino kutsegula, makamaka m'madera ena. chotengera chachikulu kapena payipi yothamanga kwambiri. Musanatsegule payipi yothamanga kwambiri kudzera pa mpumulo wa valavu yodutsa, kuti mupewe kuthamanga kwambiri mwadzidzidzi, kupangika kwa payipi pansi pa valve. Kapena kusiyana kwapakati pakati pa malekezero awiri a valve ndi yaikulu kwambiri, torque yotsegulira ndi yaikulu kwambiri, pofuna kupewa kuwonongeka kwa torque ku valve, kupumula kupanikizika musanatsegule valve.
Awiri, udindo mwadzidzidzi, monga payipi standby ntchito, mwayi waukulu ndi pamene chachikulu valavu kulephera, kapena kufunika kukonza ndi kukonzanso, mukhoza kutsegula bypass valavu kufalitsidwa, ndipo sizimakhudza kupanga yachibadwa.
Kaya valavu iyenera kukhazikitsidwa ndi zofunikira zenizeni za valve ndi Zokonda*Kuti mudziwe)
2.5mpa kalasi, DN400 kapena pamwamba; 4.0mpa kalasi, DN250 kapena pamwamba; 6.4mpa kalasi, DN200 kapena pamwamba; 10MPa kalasi, DN150 kapena pamwamba;
DN100 ~ DN200 valavu, chitoliro cholambalala ndi valavu yolambalala ya DN20; DN250 ~ DN600 valavu, chitoliro chodutsa ndi valavu yolambalala ya DN25; Kwa mavavu pamwamba pa DN600, chitoliro chodutsa ndi valavu yodutsa ndi DN40.