iye 3 unit (25MW) yegwenya remagetsi ine maviri akachinjika  kupatsanura casing pombi  semapombi ekutonhodza anotenderera. Iyo pombi nameplate paramita ndeiyi:

Q=3240m3/h, H=32m, n=960r/m, Pa=317.5kW, Hs=2.9m (kureva NPSHr=7.4m)

Chishandiso chepombi chinopa mvura kune imwe kutenderera, uye mvura yekupinza uye yekubuda iri panzvimbo imwechete yemvura.

Mumwedzi isingasviki miviri yekushanda, pombi impeller yakakuvadzwa uye yakaputika ne cavitation.

Processing:

Kutanga, takaita tsvakurudzo yepa-site uye takaona kuti kubuda kwepombi kwepombi kwaingova 0.1MPa, uye pointer yakanga ichizununguka nechisimba, ichiperekedzwa nekutinhira kwekuputika uye cavitation. Senyanzvi yepombi, fungidziro yedu yekutanga ndeyekuti cavitation inoitika nekuda kwechikamu chekushanda mamiriro. Nekuti dhizaini yemusoro wepombi ndeye 32m, sezvinoratidzwa padhizaini yekuyerera, kuverenga kunofanirwa kunge kuri 0.3MPa. Iyo pa-saiti yekumanikidza gauge kuverenga ndeye 0.1MPa chete. Zviripachena, musoro wekushandisa wepombi ungangoita 10m chete, ndiko kuti, mamiriro ekushanda eiyo horizontal. pombi yekasi yekuparadzanisa iri kure nenzvimbo yakataurwa yeQ=3240m3/h, H=32m. Iyo pombi panguva ino inofanira kunge ine cavitation yakasara ye, vhoriyamu yakawedzera zvisingatarisirwi, cavitation ichaitika zvisingadzivisiki.

Kechipiri, pa-saiti debugging yakaitwa kubvumira mushandisi kuziva intuitively kuti kukanganisa mumusoro wekusarudza pombi kwakakonzerwa. Kuti ubvise cavitation, mamiriro ekushanda kwepombi anofanira kudzorerwa pedyo nemamiriro ekushanda akataurwa Q = 3240m3 / h uye H = 32m. Iyo nzira ndeyekuvhara vharafu yekubuda yechikoro. Vashandisi vanonetsekana zvikuru nezvekuvhara vharuvhu. Vanotenda kuti chiyero chekuyerera hachina kukwana kana vharuvhu yakavhurika zvakazara, zvichikonzera kusiyana kwekushisa pakati pekupinda nekubuda kwecondenser kusvika 33 ° C (kana iyo yekuyerera yakakwana, yakajairika tembiricha musiyano pakati pekupinda nekubuda. inofanira kunge iri pasi pe11°C). Kana vharafu yekubuda yakavharwa zvakare,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, zavhavha yepombi yacho haingave iri duku here? Kuti vavimbise vashandisi vemagetsi emagetsi, vakakumbirwa kuronga kuti vashandi vanokodzera vatarise zvakasiyana dhigirii yecondenser vacuum, kubuda kwemagetsi, tembiricha yekubuda kwemvura yekupisa uye imwe data inonzwisisa kuyerera kwekuchinja. Vashandi vepombi yepombi zvishoma nezvishoma vakavhara vharuvhu yepombi muimba yepombi. . Iyo yekubuda pressure inowedzera zvishoma nezvishoma sezvo kuvhurwa kwevhavha kunoderera. Kana ichikwira kusvika ku0.28MPa, iyo cavitation ruzha rwepombi inobviswa zvachose, iyo vacuum degree yecondenser inowedzera kubva pa650 mercury kuenda ku700 mercury, uye musiyano wetembiricha pakati pekupinda nekubuda kwecondenser unoderera. kusvika pasi pe11 ℃. Zvose izvi zvinoratidza kuti mushure mokunge mamiriro ekushanda adzokera kunzvimbo yakataurwa, cavitation phenomenon yepombi inogona kubviswa uye kubuda kwepombi kunodzokera kune yakajairika (mushure mokunge cavitation inoitika mumamiriro ekushanda kwepombi, zvose zvinoyerera uye musoro zvichaderera. ) Nekudaro, kuvhurwa kwevharuvhu kunongoita gumi muzana panguva ino. Kana ichimhanya seizvi kwenguva yakareba, valve ichakuvadzwa nyore nyore uye kushandiswa kwesimba kunenge kusina hupfumi.

Solution:

Sezvo musoro wepombi wepakutanga uri 32m, asi musoro mutsva unodiwa unongova 12m chete, kusiyana kwemusoro kwakanyanyisa, uye nzira iri nyore yekucheka impeller kuderedza musoro haichagoneki. Nokudaro, chirongwa chakarongwa kuderedza kukurumidza kwemotokari (kubva 960r / m kusvika 740r / m) uye kugadzirisazve pombi impeller. Gare gare kudzidzira kwakaratidza kuti mhinduro iyi yakagadzirisa zvachose dambudziko. Izvo hazvina kungogadzirisa dambudziko re cavitation, asiwo zvakanyanya kuderedza kushandiswa kwesimba.

Chinokosha chechinetso munyaya iyi ndechokuti kusimudzwa kwehorizontal split casing pombi yakawandisa.