Lero, mkonzi akudziwitsani momwe mungathanirane ndi zolakwika zomwe zimachitika pamagetsi owongolera. Tiyeni tiwone!

Ndi mbali ziti zomwe ziyenera kuyang'aniridwa pamene cholakwika chichitika?

1. Khoma lamkati la thupi la valve

Khoma lamkati la thupi la valve nthawi zambiri limakhudzidwa ndikuwonongeka ndi sing'anga pamene ma valve oyendetsa amagwiritsidwa ntchito pazitsulo zotsika kwambiri komanso zowonongeka, choncho ndikofunika kuyang'anitsitsa kuti muwonetsetse kuti zowonongeka ndi kukana kwake.

2. Mpando wa valve

Mkati mwa ulusi umene umatetezera mpando wa valve umawononga mwamsanga pamene valavu yoyendetsera ntchito ikugwira ntchito, zomwe zimapangitsa kuti mpando wa valve ukhale womasuka. Izi ndichifukwa chakulowa kwa sing'anga. Mukamayendera, kumbukirani izi. Malo osindikizira mpando wa valve ayenera kuyang'aniridwa kuti awonongeke pamene valve ikugwira ntchito pansi pa zovuta zosiyana.

3. Spool

Ma valve owongolerazosunthika chigawo chimodzi pamene ntchito amatchedwavalavu core. Ndilo lomwe mawailesi ofalitsa nkhani aononga komanso kukokoloka kwambiri. Chigawo chilichonse chapakati pa valve chiyenera kuyang'aniridwa bwino ndi kuwonongeka kwake. Tiyenera kuzindikira kuti kuvala kwa valve core (cavitation) kumakhala koopsa kwambiri pamene kusiyana kwapakati kumakhala kwakukulu. Ndikofunikira kukonza pakati pa valve ngati yawonongeka kwambiri. Kuphatikiza apo, muyenera kukumbukira zochitika zilizonse zofananira pa tsinde la valve komanso kulumikizana kulikonse kotayirira ndi pachimake cha valve.

4. mphete za "O" ndi ma gaskets ena

Kaya ndi kukalamba kapena kusweka.

5. PTFE kulongedza, kusindikiza mafuta

Kaya ndi kukalamba komanso ngati malo okwererako awonongeka, ayenera kusinthidwa ngati kuli kofunikira.

Valve yowongolera imapanga phokoso, ndiyenera kuchita chiyani?

1. Chotsani phokoso la resonance

Mphamvu sizidzakulungidwa mpaka valavu yowongolera imvekere, ndikupanga phokoso lalikulu kuposa 100 dB. Ena amakhala ndi phokoso lochepa koma amanjenjemera mwamphamvu, ena amakhala ndi maphokoso akulu koma amanjenjemera opanda mphamvu, pomwe ena amakhala ndi phokoso komanso kugwedezeka kwakukulu.

Kumveka kwa toni imodzi, nthawi zambiri kumakhala pakati pa 3000 ndi 7000 Hz, kumapangidwa ndi phokosoli. Zoonadi, phokosolo lidzachoka lokha ngati phokoso lichotsedwa.

2. Chotsani phokoso la cavitation

Chifukwa chachikulu cha phokoso la hydrodynamic ndi cavitation. Phokoso lamphamvu la m'deralo ndi phokoso la cavitation limapangidwa ndi mphamvu yothamanga kwambiri yomwe imachitika pamene thovu likugwa panthawi ya cavitation.

Phokosoli limakhala ndi ma frequency angapo komanso phokoso lozungulira lomwe limakumbutsa zamadzimadzi okhala ndi timiyala ndi mchenga. Njira imodzi yabwino yochotsera ndi kuchepetsa phokoso ndiyo kuchepetsa ndi kuchepetsa cavitation.

3. Gwiritsani ntchito mapaipi okhala ndi mipanda yokhuthala

Njira imodzi yothanirana ndi njira yamawu ndiyo kugwiritsa ntchito mapaipi okhala ndi makoma amphamvu. Kugwiritsa ntchito mapaipi amipanda yochindikala kungachepetse phokoso ndi ma decibel 0 mpaka 20, pamene mapaipi amipanda yopyapyala amatha kukulitsa phokoso ndi ma decibel asanu. The mphamvu kuchepetsa phokoso tingati thicker chitoliro khoma awiri chitoliro m'mimba mwake ndi lalikulu chitoliro m'mimba mwake wa makulidwe ofanana khoma.

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

4. Gwiritsani ntchito zida zomvera mawu

Iyi ndiyonso njira yotchuka komanso yothandiza kwambiri yopangira njira zamawu. Mipope imatha kukulungidwa ndi zinthu zomwe zimayamwa mawu kumbuyo kwa ma valve ndi magwero a phokoso.

Ndikofunika kukumbukira kuti phokoso limayenda mtunda wautali kudzera m'madzi amadzimadzi, motero kugwiritsa ntchito mapaipi okhala ndi mipanda yokhuthala kapena kukulunga zinthu zotulutsa mawu sikungathetseretu phokosolo.

Chifukwa cha kukwera mtengo kwake, njira iyi ndi yoyenera kwambiri pazochitika zomwe phokoso limakhala lotsika komanso kutalika kwa mapaipi ndiafupi.

5.Series muffler

Phokoso la Aerodynamic limatha kuthetsedwa pogwiritsa ntchito njirayi. Imakhala ndi mphamvu yochepetsera phokoso la phokoso lomwe limaperekedwa kugawo lolimba lotchinga ndikuchotsa phokoso mkati mwamadzimadzi. Kuthamanga kwakukulu kwa misa kapena kutsika kwapakati pazigawo zisanayambe ndi kutsatira valavu ndizoyenera kwambiri pachuma cha njirayi ndikuchita bwino.

Zotsekera pamizere zoyamwitsa ndi njira yabwino yochepetsera phokoso. Komabe, kuchepetsedwa kumakhala pafupifupi 25 dB chifukwa cha ndalama.

6. Bokosi losamveka

Gwiritsani ntchito mabokosi osamveka, nyumba ndi nyumba kuti mulekanitse magwero a phokoso lamkati ndikuchepetsa phokoso lakunja lachilengedwe kukhala lovomerezeka.

7. Series throttling

Njira yotsatirira yotsatizana imagwiritsidwa ntchito pamene kuthamanga kwa valve yowongolera kuli kokwera kwambiri (△P/P1≥0.8). Izi zikutanthauza kuti kutsika konseko kumagawidwa pakati pa valavu yowongolera ndi chinthu chokhazikika kumbuyo kwa valve. Njira zabwino zochepetsera phokoso ndikudutsa porous flow limiting plates, diffuser, etc.

Diffuser iyenera kupangidwa molingana ndi kapangidwe kake (mawonekedwe athupi, kukula) kuti azitha kuyendetsa bwino kwambiri.