he 3 unit (25MW) ya fakitale yamagetsi ili ndi ziwiri zopingasa  mapampu apakati apakati  ngati mapampu ozizira ozungulira. Magawo a pompopompo ndi awa:

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

Chipangizo cha mpope chimapereka madzi kwa mkombero umodzi, ndipo cholowera madzi ndi chotuluka chili pamadzi omwewo.

Pasanathe miyezi iwiri yogwira ntchito, chopopera chopopera chidawonongeka ndikubowoleredwa ndi cavitation.

Processing:

Choyamba, tinachita kafukufuku wapamalo ndikupeza kuti kuthamanga kwa mpope kunali 0.1MPa kokha, ndipo pointer inali kugwedezeka mwamphamvu, limodzi ndi phokoso la kuphulika ndi cavitation. Monga katswiri wapampopi, kuganiza kwathu koyamba ndikuti cavitation imachitika chifukwa cha magwiridwe antchito pang'ono. Chifukwa mutu wamapangidwe a mpope ndi 32m, monga momwe zimawonera pamagetsi otulutsa, kuwerenga kuyenera kukhala pafupifupi 0.3MPa. Kuwerengera kwamphamvu kwapamalo ndi 0.1MPa yokha. Mwachiwonekere, mutu wogwira ntchito wa mpope ndi pafupifupi 10m, ndiko kuti, momwe ntchito yopitira imagwirira ntchito. pompa yopatukana ili kutali kwambiri ndi malo ogwirira ntchito omwe adanenedwa a Q=3240m3/h, H=32m. Pampu panthawiyi iyenera kukhala ndi cavitation yotsalira, voliyumu yawonjezeka mosayembekezereka, cavitation idzachitika mosakayikira.

Kachiwiri, kukonza zolakwika pamalopo kunachitika kuti wogwiritsa ntchito azindikire kuti cholakwika pamutu wosankha pampu chidachitika. Pofuna kuthetsa cavitation, machitidwe ogwiritsira ntchito mpope ayenera kubwezeredwa pafupi ndi machitidwe omwe akugwiritsidwa ntchito a Q = 3240m3 / h ndi H = 32m. Njira ndiyo kutseka valavu yotulukira kusukulu. Ogwiritsa ali ndi nkhawa kwambiri za kutseka valve. Amakhulupirira kuti kuthamanga kwake sikokwanira pamene valavu yatseguka mokwanira, zomwe zimapangitsa kusiyana kwa kutentha pakati pa cholowera ndi kutuluka kwa condenser kufika 33 ° C (ngati kuthamanga kuli kokwanira, kusiyana kwa kutentha kwapakati pakati pa cholowera ndi kutuluka. kuyenera kukhala pansi pa 11 ° C). Ngati valavu yotuluka itsekedwa kachiwiri, kodi kuthamanga kwa mpope sikungakhale kochepa? Pofuna kutsimikizira oyendetsa magetsi, adafunsidwa kuti akonzekere kuti ogwira nawo ntchito aziwona padera digiri ya vacuum ya condenser, kutulutsa mphamvu, kutentha kwamadzi a condenser ndi zina zomwe zimakhudzidwa ndi kusintha kwa kayendedwe kake. Ogwira ntchito pafakitale yopopera pang'onopang'ono anatseka valavu yotulutsa mpope mchipinda chopopera. . Kuthamanga kwa kutuluka kumawonjezeka pang'onopang'ono pamene kutsegula kwa valve kumachepa. Ikakwera mpaka 0.28MPa, phokoso la cavitation la mpope limathetsedwa, kuchuluka kwa vacuum kwa condenser kumawonjezekanso kuchokera ku 650 mercury mpaka 700 mercury, ndipo kusiyana kwa kutentha pakati pa cholowera ndi kutulutsa kwa condenser kumachepa. mpaka 11 ℃. Zonsezi zikuwonetsa kuti machitidwe ogwirira ntchito abwereranso kumalo omwe atchulidwa, cavitation phenomenon ya mpope imatha kuthetsedwa ndipo kutuluka kwa mpope kumabwereranso mwakale (pambuyo pa cavitation imapezeka muzochitika zapampu, zonse zomwe zimatuluka ndi mutu zidzachepa. ). Komabe, kutsegulidwa kwa valve ndi pafupifupi 10% panthawiyi. Ngati zimayenda motere kwa nthawi yayitali, valavu idzawonongeka mosavuta ndipo kugwiritsa ntchito mphamvu kudzakhala kopanda chuma.

yankho;

Popeza mutu wa mpope wapachiyambi ndi 32m, koma mutu watsopano wofunikira ndi 12m okha, kusiyana kwa mutu kuli kutali kwambiri, ndipo njira yosavuta yodulira chopondera kuti muchepetse mutu sichithekanso. Choncho, ndondomeko inakonzedwa kuti kuchepetsa liwiro la galimoto (kuchokera 960r / m mpaka 740r / m) ndi kukonzanso mpope impeller. Pambuyo pake machitidwe adawonetsa kuti yankholi linathetsa vutoli. Izo sizinathetse vuto la cavitation, komanso kuchepetsa kwambiri mphamvu yogwiritsira ntchito mphamvu.

Chinsinsi cha vuto pankhaniyi ndikuti kukweza kopingasa kagawo kakang'ono mpope ndiokwera kwambiri.