Ukusika kwe-Impeller kuyinqubo yokwenza ububanzi be-impeller (i-blade) ukunciphisa inani lamandla elingeziwe oketshezini lwesistimu. Ukusika i-impeller kungenza ukulungisa okuwusizo ukumpompa ukusebenza ngenxa yobukhulu obukhulu, noma izinqubo zokuklama ezilandela ngokweqile noma izinguquko ekulayishweni kwesistimu.

Nini Ukucabangela Impeller Cutting?

Abasebenzisi bokugcina kufanele bacabange ukusika i-impeller uma kwenzeka noma yimiphi imibandela elandelayo:

1. Ama-valve amaningi esistimu avulekile, okubonisa ukuthi okokusebenza kwesistimu kungathola ukugeleza ngokweqile

2. Ukucindezela ngokweqile kuyadingeka ukulawula ukugeleza ngesistimu noma inqubo

3. Amazinga aphezulu omsindo noma ukudlidliza abonisa ukugeleza ngokweqile

4. Ukusebenza kwephampu kuchezuka endaweni yokuklama (isebenza ngesilinganiso esincane sokugeleza)

Izinzuzo Zokusika Ama-Impeller

Inzuzo eyinhloko yokunciphisa usayizi we-impeller iyancipha izindleko zokusebenza nezokugcina. Amandla oketshezi oluncane amoshwa emigqeni yokudlula kanye nama-throttles, noma ahlakazwe ohlelweni njengomsindo nokudlidliza. Ukonga amandla kucishe kulingane nekhiyubhu yobubanzi obuncishisiwe.

Ngenxa yokungasebenzi kahle kwezinjini namaphampu, amandla enjini adingekayo ukuze kukhiqizwe la mandla oketshezi (amandla) aphezulu.

Ngaphezu ukonga amandla, ukusika iphampu ye-turbine enezigaba eziningi ama-impellers anciphisa ukuguga nokudabuka kumapayipi wesistimu, ama-valve nezisekelo zamapayipi. Ukudlidliza kwamapayipi okubangelwa ukugeleza kungakhathala kalula ukushisela kwamapayipi namajoyinti ayimishini. Ngokuhamba kwesikhathi, ama-welds aqhekekile kanye namajoyinti axegayo angenzeka, okuholela ekuvuzeni kanye nesikhathi sokuphumula sokulungiswa.

Amandla oketshezi amaningi nawo awathandeki ngokombono wokuklama. Izisekelo zamapayipi ngokuvamile ziyahlukaniswa futhi zilinganiselwe ukuze zimelane nemithwalo emile kusukela esisindweni sepayipi noketshezi, imithwalo yengcindezi esuka kumfutho wangaphakathi wesistimu, nokwanda okubangelwa ukushintsha kwezinga lokushisa ezinhlelweni ezishintshashintshayo ezishisayo. Ukudlidliza okuvela kumandla oketshezi okweqile kubeka imithwalo engabekezeleleki ohlelweni futhi kuholele ekuvuzeni, isikhathi sokuphumula kanye nokugcinwa okwengeziwe.

komkhawulo

Ukusika impompi yephampu ye-turbine enesiteji esiningi ishintsha ukusebenza kwayo kahle, futhi okungahambisani nemigqa emithethweni efanayo ehlotshaniswa nomshini we-impeller kuhlanganisa ukuqagela kokusebenza kwephampu. Ngakho-ke, ububanzi be-impeller akuvamile ukuncishiswa ngaphansi kwama-70% wobukhulu bawo bangempela.

Kwamanye amaphampu, i-impeller cutting inyusa i-net positive suction head (NPSHR) edingwa iphampu. Ukuze uvimbele i-cavitation, ipompo ye-centrifugal kufanele isebenze ngokucindezela okuthile endaweni yayo yokungena (okungukuthi NPSHA ≥ NPSHR). Ukunciphisa ubungozi be-cavitation, umthelela we-impeller cutting ku-NPSHR kufanele uhlolwe kusetshenziswa idatha yomkhiqizi kulo lonke uhla lwezimo zokusebenza.