1. Wonjezerani kuuma

Pa kugwedezeka ndi kugwedezeka pang'ono, kuuma kwake kungawonjezedwe kuti kuchotse kapena kufooketsa. Mwachitsanzo, kugwiritsa ntchito kasupe wokhala ndi kuuma kwakukulu kapena kugwiritsa ntchito piston actuator n'kotheka.

2. Kuonjezera kuuma kwa madzi

Kuchulukitsa chinyezi kumatanthauza kuwonjezera kukangana motsutsana ndi kugwedezeka. Mwachitsanzo, pulagi ya valavu ya valavu ya sleeve ikhoza kutsekedwa ndi mphete ya "O", kapena chodzaza cha graphite chokhala ndi kukangana kwakukulu, komwe kungathandize kuthetsa kapena kufooketsa kugwedezeka pang'ono.

3. Wonjezerani kukula kwa chitsogozo ndikuchepetsa mpata woyenerera

Kukula kwa chitsogozo chama valve a pulagi ya shaftNthawi zambiri ndi yaying'ono, ndipo malo ofanana a ma valve onse nthawi zambiri amakhala aakulu, kuyambira 0.4 mpaka 1 mm, zomwe zimathandiza popanga kugwedezeka kwa makina. Chifukwa chake, pakachitika kugwedezeka pang'ono kwa makina, kugwedezeka kumatha kufooka powonjezera kukula kwa chitsogozo ndikuchepetsa mpata wolumikizira.

4. Sinthani mawonekedwe a throttle kuti muchotse resonance

Chifukwa chomwe chimatchedwa gwero la kugwedezeka kwavalavu yowongoleraKumachitika pa throttle port komwe kuyenda kwa liwiro lalikulu ndi kupanikizika kumasintha mofulumira, kusintha mawonekedwe a throttle member kumatha kusintha kuchuluka kwa magwero a kugwedezeka, zomwe zimakhala zosavuta kuthetsa pamene resonance siili yamphamvu.

Njira yeniyeni ndiyo kutembenuza pamwamba pa valavu yokhota ndi 0.5 ~ 1.0mm mkati mwa malo otsegulira kugwedezeka. Mwachitsanzo,valavu yolamulira kuthamanga yodziyendetsa yokhaimayikidwa pafupi ndi malo a banja la fakitale. Phokoso la mluzu lomwe limachitika chifukwa cha kumveka bwino limakhudza antchito ena onse. Pambuyo poti pamwamba pa valavu patembenuzidwe ndi 0.5mm, phokoso la mluzu limatha.

5. Sinthani gawo lozungulira kuti muchotse phokoso

Njira zake ndi izi:

Sinthani makhalidwe a kayendedwe ka madzi, logarithmic kukhala yolunjika, yolunjika kukhala logarithmic;

Sinthani mawonekedwe a valavu. Mwachitsanzo, sinthani mtundu wa pulagi ya shaft kukhala valavu yooneka ngati "V", ndipo sinthani mtundu wa pulagi ya shaft ya valavu yokhala ndi mipando iwiri kukhala mtundu wa sleeve;

Sinthani chivundikiro cha zenera kukhala chivundikiro chokhala ndi mabowo ang'onoang'ono, ndi zina zotero.

Mwachitsanzo, valavu ya DN25 yokhala ndi mipando iwiri mu fakitale ya feteleza ya nayitrogeni nthawi zambiri inkagwedezeka ndikusweka pa kulumikizana pakati pa tsinde la valavu ndi pakati pa valavu. Titatsimikizira kuti inali ndi resonance, tinasintha pakati pa valavu yodziwika bwino kukhala pakati pa valavu ya logarithmic, ndipo vutoli linathetsedwa. Chitsanzo china ndi valavu ya DN200 yomwe imagwiritsidwa ntchito mu labotale ya koleji yoyendetsa ndege. Pulavu ya valavu inazungulira mwamphamvu ndipo sinathe kugwiritsidwa ntchito. Titasintha valavu ndi zenera kukhala valavu yokhala ndi dzenje laling'ono, kuzungulirako kunatha nthawi yomweyo.

6. Sinthani mtundu wa valavu yowongolera kuti muchotse kugwedezeka

Mafupipafupi achilengedwe a ma valve owongolera okhala ndi mawonekedwe osiyanasiyana amasiyana mwachilengedwe. Kusintha mtundu wa valavu yowongolera ndiyo njira yothandiza kwambiri yochotsera kugwedezeka.

Kumveka kwa valavu kumakhala koopsa kwambiri mukamagwiritsa ntchito - kumanjenjemera kwambiri (pazochitika zoopsa, valavu imatha kuwonongeka), imazungulira mwamphamvu (ngakhale tsinde la valavu limagwedezeka kapena kupotozedwa), ndipo limapanga phokoso lamphamvu (mpaka ma decibel opitilira 100). Ingosinthani valavu ndi valavu yokhala ndi kusiyana kwakukulu kwa kapangidwe kake, ndipo zotsatira zake zidzakhala nthawi yomweyo, ndipo kumveka kwamphamvu kudzatha mozizwitsa.

Mwachitsanzo, valavu ya DN200 imasankhidwa kuti igwiritsidwe ntchito pa ntchito yatsopano yokulitsa fakitale ya vinylon. Pali zinthu zitatu zomwe zili pamwambapa. Chitoliro cha DN300 chimadumphadumpha, pulagi ya valavu imazungulira, phokoso limapitirira ma decibel 100, ndipo kutsegula kwa resonance ndi 20 mpaka 70%. Taganizirani kutsegula kwa resonance. Mlingo wake ndi waukulu. Pambuyo pogwiritsa ntchito valavu yokhala ndi mipando iwiri, resonance inatha ndipo ntchitoyo inali yachibadwa.

7. Njira yochepetsera kugwedezeka kwa cavitation

Pa kugwedezeka kwa cavitation komwe kumachitika chifukwa cha kugwa kwa thovu la cavitation, ndikwachibadwa kupeza njira zochepetsera cavitation.

Mphamvu yokhudza mphamvu yopangidwa ndi kuphulika kwa thovu siigwira ntchito pamwamba pa cholimba, makamaka pakati pa valavu, koma imayamwa ndi madzi. Mavalavu a manja ali ndi mawonekedwe awa, kotero pakati pa valavu ya mtundu wa shaft plug imatha kusinthidwa kukhala mtundu wa sleeve.

Chitani zonse zomwe mungathe kuti muchepetse kutsekeka kwa cavitation, monga kuwonjezera kukana kwa throttling, kuwonjezera kupanikizika kwa ming'alu ya m'mimba, kuchepetsa kupanikizika pang'onopang'ono kapena motsatizana, ndi zina zotero.

8. Pewani njira yowukira mafunde ochokera ku kugwedezeka

Kugwedezeka kwa mafunde kuchokera kuzinthu zakunja zogwedezeka kumayambitsa kugwedezeka kwa ma valavu, zomwe mwachionekere ndi chinthu chomwe chiyenera kupewedwa panthawi yogwira ntchito bwino kwa valavu yowongolera. Ngati kugwedezeka koteroko kukuchitika, njira zofananira ziyenera kutengedwa.