iyunithi engu-3 (25MW) yesikhungo sikagesi ifakwe ezimbili ezivundlile  amaphampu e-casing ehlukanisayo  njengamaphampu okupholisa ajikelezayo. Imingcele ye-pump nameplate yilezi:

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

Idivayisi yepompo ihlinzeka ngamanzi omjikelezo owodwa, futhi indawo yokukhipha amanzi kanye ne-outlet kusendaweni efanayo yamanzi.

Esikhathini esingaphansi kwezinyanga ezimbili zokusebenza, i-impeller yepompo yonakalisiwe futhi yabhobozwa yi-cavitation.

Iyacubungula:

Okokuqala, senze uphenyo esizeni futhi sathola ukuthi ukucindezela kokuphuma kwepompo kwakungu-0.1MPa kuphela, futhi i-pointer yayizulazula ngobudlova, ihambisana nomsindo wokuqhuma kanye ne-cavitation. Njengochwepheshe wepompo, umbono wethu wokuqala ukuthi i-cavitation yenzeka ngenxa yezimo ezithile zokusebenza. Ngenxa yokuthi inhloko yokuklama yepompo ingama-32m, njengoba kukhonjiswe kugeji yokucindezela kokukhipha, ukufundwa kufanele kube cishe ngu-0.3MPa. Ukufundwa kwegeji yokucindezela okusendaweni kungu-0.1MPa kuphela. Ngokusobala, inhloko yokusebenza yepompo ingamamitha ayi-10 kuphela, okungukuthi, isimo sokusebenza se-horizontal. iphampu ye-casing ehlukanisayo ikude nendawo yokusebenza eshiwo ethi Q=3240m3/h, H=32m. Ipompo kuleli phuzu kufanele ibe ne-cavitation residu, ivolumu iye yanda ngokungalindelekile, i-cavitation izokwenzeka nakanjani.

Okwesibili, ukulungisa iphutha endaweni kwenziwe ukuze kuvunyelwe umsebenzisi ukuthi abone ngokunembile ukuthi iphutha ekhanda lokukhetha iphampu lidalwe. Ukuze kuqedwe i-cavitation, izimo zokusebenza zepompo kufanele zibuyiselwe eduze nezimo zokusebenza ezishiwo ze-Q=3240m3/h ne-H=32m. Indlela yokuvala ivalve yokuphuma esikoleni. Abasebenzisi bakhathazeke kakhulu ngokuvala i-valve. Bakholelwa ukuthi izinga lokugeleza alanele lapho i-valve ivuliwe ngokugcwele, okwenza umehluko wokushisa phakathi kokungena nokuphuma kwe-condenser ufinyelele ku-33 ° C (uma izinga lokugeleza lanele, umehluko ojwayelekile wokushisa phakathi kokungena nokuphumayo. kufanele kube ngaphansi kuka-11°C). Uma i-valve yokuphuma ivalwa futhi, , ngeke yini izinga lokugeleza kwepompo libe lincane? Ukuze kuqinisekiswe abaqhubi besikhungo sikagesi, bacelwa ukuba bahlelele abasebenzi abafanelekile ukuthi babheke ngokwehlukana idigri ye-condenser vacuum, ukuphuma kokukhiqizwa kwamandla, izinga lokushisa lamanzi e-condenser outlet kanye nolunye ulwazi oluzwelayo ekushintsheni kokugeleza. Abasebenzi bemboni yepompo bavala kancane kancane i-valve yokukhipha iphampu egumbini lokumpompa. . Ingcindezi yokuphuma ikhuphuka kancane kancane njengoba ukuvulwa kwe-valve kuncipha. Uma ikhuphukela ku-0.28MPa, umsindo we-cavitation wepompo ususwa ngokuphelele, i-vacuum degree ye-condenser nayo ikhuphuka isuka ku-650 mercury iye ku-700 mercury, futhi umehluko wokushisa phakathi kokungena nokuphuma kwe-condenser uyancipha. ngaphansi kwe-11 ℃. Konke lokhu kubonisa ukuthi ngemva kokuba izimo zokusebenza zibuyele endaweni ecacisiwe, i-cavitation phenomenon yepompo ingaqedwa futhi ukugeleza kwepompo kubuyela esimweni esivamile (ngemuva kokuba i-cavitation yenzeke ezimweni zokusebenza eziyingxenye yepompo, kokubili izinga lokugeleza kanye nekhanda kuzokwehla. ). Kodwa-ke, ukuvulwa kwe-valve cishe ku-10% kuphela ngalesi sikhathi. Uma igijima kanje isikhathi eside, i-valve izolimala kalula futhi ukusetshenziswa kwamandla kuyoba kungenamali.

Isixazululo:

Njengoba ikhanda lepompo langempela lingu-32m, kodwa ikhanda elisha elidingekayo liyi-12m kuphela, umehluko wekhanda ukude kakhulu, futhi indlela elula yokusika i-impeller ukuze unciphise ikhanda ayisasebenzi. Ngakho-ke, kwahlongozwa uhlelo lokunciphisa isivinini se-motor (kusuka ku-960r / m kuya ku-740r / m) futhi kuhlelwe kabusha i-pump impeller. Ukuzijwayeza kamuva kwabonisa ukuthi lesi sixazululo siyixazulule ngokuphelele inkinga. Ayixazululanga kuphela inkinga ye-cavitation, kodwa futhi yanciphisa kakhulu ukusetshenziswa kwamandla.

Isihluthulelo senkinga kuleli cala ukuthi ukuphakama kwe-horizontal i-casing casing iphampu iphezulu kakhulu.