Lero, mkonzi adzakufotokozerani momwe mungathanirane ndi zolakwika zofala za ma valve owongolera. Tiyeni tiwone!

Ndi ziwalo ziti zomwe ziyenera kufufuzidwa pamene vuto lachitika?

1. Khoma lamkati la thupi la valavu

Khoma lamkati la thupi la valavu nthawi zambiri limakhudzidwa ndi zinthu zogwiritsidwa ntchito pamene mavala owongolera amagwiritsidwa ntchito m'malo osinthira mphamvu yamagetsi komanso owononga, choncho ndikofunikira kuyang'anitsitsa kukana kwake dzimbiri ndi kukana kwa kuthamanga.

2. Mpando wa valavu

Mbali yamkati ya ulusi yomwe imateteza mpando wa valavu imawonongeka mwachangu pamene valavu yowongolera ikugwira ntchito, zomwe zimapangitsa kuti mpando wa valavu ukhale womasuka. Izi zimachitika chifukwa cha kulowa kwa cholumikiziracho. Mukamayang'ana, kumbukirani izi. Mbali yotsekera mpando wa valavu iyenera kuyang'aniridwa kuti ione ngati yawonongeka pamene valavu ikugwira ntchito pansi pa kusiyana kwakukulu kwa kupanikizika.

3. Chipinda Chosambira

Ma valve owongoleragawo losunthika likagwira ntchito limatchedwavalavu yaikuluNdi chinthu chomwe cholumikizira chawonongeka kwambiri. Chigawo chilichonse cha pakati pa valavu chimayenera kuyang'aniridwa bwino nthawi yokonza. Dziwani kuti kusweka kwa pakati pa valavu (cavitation) kumakhala koopsa kwambiri pamene kusiyana kwa kuthamanga kuli kwakukulu. Ndikofunikira kukonza pakati pa valavu ngati chawonongeka kwambiri. Kuphatikiza apo, muyenera kusamala ndi zochitika zina zofanana pa tsinde la valavu komanso kulumikizana kulikonse kosasunthika ndi pakati pa valavu.

4. Mphete za “O” ndi ma gasket ena

Kaya ndi kukalamba kapena kusweka.

5. Kulongedza kwa PTFE, kusindikiza mafuta

Kaya ndi kukalamba kapena ngati pamwamba pa mbedza yawonongeka, iyenera kusinthidwa ngati pakufunika kutero.

Valavu yowongolera imapanga phokoso, ndiyenera kuchita chiyani?

1. Chotsani phokoso la resonance

Mphamvu sizidzapitirira mpaka valavu yowongolera itayamba kumveka, zomwe zimapangitsa phokoso lalikulu lomwe ndi lalikulu kuposa 100 dB. Ena ali ndi phokoso lochepa koma kugwedezeka kwamphamvu, ena ali ndi phokoso lalikulu koma kugwedezeka kofooka, pomwe ena ali ndi phokoso komanso kugwedezeka kwakukulu.

Phokosoli limatha lokha ngati phokoso la mawu amodzi, nthawi zambiri limakhala pakati pa 3000 ndi 7000 Hz.

2. Chotsani phokoso la cavitation

Chifukwa chachikulu cha phokoso la hydrodynamic ndi cavitation. Kugwedezeka kwamphamvu kwa m'deralo ndi phokoso la cavitation kumachitika chifukwa cha kuthamanga kwamphamvu komwe kumachitika thovu likagwa panthawi ya cavitation.

Phokoso ili lili ndi ma frequency ambiri komanso phokoso logwedezeka lomwe limafanana ndi madzi omwe ali ndi miyala ndi mchenga. Njira imodzi yabwino yochotsera ndikuchepetsa phokoso ndi kuchepetsa ndi kuchepetsa kutsekeka kwa cavitation.

3. Gwiritsani ntchito mapaipi okhala ndi makoma okhuthala

Njira imodzi yothetsera vuto la phokoso ndikugwiritsa ntchito mapaipi okhala ndi makoma olimba. Kugwiritsa ntchito mapaipi okhala ndi makoma okhuthala kungachepetse phokoso ndi ma decibel 0 mpaka 20, pomwe mapaipi okhala ndi makoma opyapyala angawonjezere phokoso ndi ma decibel 5. Mphamvu yochepetsera phokoso ikakula, khoma la mapaipi okhala ndi mainchesi ofanana a mapaipi limakhala lolimba komanso mainchesi ofanana a mapaipi okhala ndi makulidwe ofanana a khoma amakula.

Mwachitsanzo, kuchuluka kwa phokoso komwe kumachepetsedwa kungakhale -3.5, -2 (ndiko kuti, kukwezedwa), 0, 3, ndi 6 pamene makulidwe a khoma la chitoliro cha DN200 ndi 6.25, 6.75, 8, 10, 12.5, 15, 18, 20, ndi 21.5mm, motsatana. 12, 13, 14, ndi 14.5 dB. Zachidziwikire, mtengo umawonjezeka ndi makulidwe a khoma.

4. Gwiritsani ntchito zinthu zomwe zimakoka mawu

Iyi ndi njira yotchuka komanso yothandiza kwambiri yogwiritsira ntchito njira zomvekera mawu. Mapaipi amatha kukulungidwa ndi zinthu zomwe zimayamwa mawu kumbuyo kwa ma valve ndi magwero a phokoso.

Ndikofunikira kukumbukira kuti phokoso limayenda mtunda wautali kudzera mu madzi, motero kugwiritsa ntchito mapaipi okhala ndi makoma okhuthala kapena kukulunga zinthu zomwe zimakoka mawu sikungathetse phokoso lonse.

Chifukwa cha mtengo wake wokwera, njira iyi ndi yoyenera kwambiri pazochitika zomwe phokoso limakhala lochepa komanso kutalika kwa mapaipi kuli kochepa.

5. Chotsekereza mawu cha mndandanda

Phokoso la Aerodynamic lingathe kuchotsedwa pogwiritsa ntchito njira iyi. Lili ndi mphamvu yochepetsera bwino phokoso lomwe limaperekedwa ku chotchinga cholimba ndikuchotsa phokoso mkati mwa madzi. Malo oyenda kwambiri kapena madera ocheperako asanayambe ndi kutsatira valavu ndi oyenera kwambiri kuti njira iyi ikhale yotsika mtengo komanso yogwira ntchito bwino.

Zoletsa phokoso zomwe zimayamwa mkati mwa mzere ndi njira yothandiza yochepetsera phokoso. Komabe, kuchepetsa phokoso nthawi zambiri kumakhala pafupifupi 25 dB chifukwa cha mtengo wake.

6. Bokosi losatulutsa mawu

Gwiritsani ntchito mabokosi, nyumba ndi nyumba zosagwira phokoso kuti mulekanitse magwero a phokoso lamkati ndikuchepetsa phokoso lakunja la chilengedwe kufika pamlingo woyenera.

7. Kuthamanga kwa ma throttling angapo

Njira yotsatizana ya throttling imagwiritsidwa ntchito pamene kuthamanga kwa valavu yowongolera kuli kokwera (△P/P1≥0.8). Izi zikutanthauza kuti kutsika konse kwa kuthamanga kumagawidwa pakati pa valavu yowongolera ndi chinthu chokhazikika cha throttling kumbuyo kwa valavu. Njira zabwino kwambiri zochepetsera phokoso ndi kudzera m'mabolo oletsa kuyenda kwa madzi, ma diffuser, ndi zina zotero.

Choyatsira mpweya chiyenera kupangidwa motsatira kapangidwe kake (mawonekedwe enieni, kukula kwake) kuti chizigwira ntchito bwino kwambiri.