Ukusika i-impeller yinkqubo yokucoca ububanzi be-impeller (i-blade) ukunciphisa umthamo wamandla ongeziweyo kulwelo lwenkqubo. Ukusika i-impeller kunokwenza izilungiso eziluncedo ukumpompa ukusebenza ngenxa yokugqithisa, okanye izenzo zokuyila ngokugqithisileyo okanye utshintsho kwimithwalo yenkqubo.

Xa kuqwalaselwa i-Impeller Cutting?

Abasebenzisi bokugqibela kufuneka bacinge ngokusika i-impeller xa kukho naziphi na iimeko ezilandelayo:

1. Iivalve ezininzi ze-bypass zivuliwe, ezibonisa ukuba izixhobo zenkqubo zinokufumana ukuhamba okugqithisileyo

2. I-throttling egqithisileyo iyafuneka ukulawula ukuhamba ngenkqubo okanye inkqubo

3. Izinga eliphezulu lengxolo okanye lokungcangcazela libonisa ukuhamba okugqithisileyo

4. Ukusebenza kwempompo kuphambuke kwindawo yoyilo (ukusebenza kwinqanaba elincinci lokuhamba)

Iinzuzo zokusika ii-Impellers

Inzuzo ephambili yokunciphisa ubungakanani be-impeller iyancipha iindleko zokusebenza kunye nokugcinwa. Amandla olwelo oluncinane achithwa kwimigca yokudlula kunye ne-throttles, okanye achithwa kwinkqubo njengengxolo kunye nokungcangcazela. Ugcino lwamandla luphantse lulingane netyhubhu yedayamitha encitshisiweyo.

Ngenxa yokungasebenzi kakuhle kweenjini kunye neepompo, amandla emoto afunekayo ukuvelisa la mandla olwelo (amandla) aphezulu.

Ukongeza kokonga amandla, ukusika impompo ye turbine enezigaba ezininzi ezithe nkqo i-impellers inciphisa ukuguga kunye nokukrazula kwimibhobho yenkqubo, iivalvu kunye nezixhaso zemibhobho. Ukungcangcazela kwemibhobho okubangelwa kukuhamba kunokudinwa lula ukudinwa kwemibhobho kunye namalungu omatshini. Ngokuhamba kwexesha, ii-welds eziqhekekileyo kunye namalungu avulekileyo angenzeka, okukhokelela ekuvuzeni kunye nexesha lokunciphisa ukulungiswa.

Amandla olwelo olugqithisileyo nawo akanqweneleki ngokwembono yoyilo. Izixhaso zemibhobho ziqhele ukuhlukaniswa kwaye zilinganiswe ukuze zimelane nemithwalo engatshintshiyo ukusuka kubunzima bombhobho kunye nolwelo, imithwalo yoxinzelelo olusuka kuxinzelelo lwangaphakathi lwenkqubo, kunye nokwandiswa okubangelwa lutshintsho lobushushu kwizicelo eziguqukayo ze-thermal. Ukungcangcazela okuvela kumandla olwelo olugqithisileyo kubeka imithwalo enganyamezelekiyo kwisixokelelwano kwaye kukhokelela ekuvuzeni, ukuncipha kunye nolondolozo olongezelelweyo.

engabekwa

Ukusika i-impeller yempompo ye-injini ye-multistage itshintsha ukusebenza kwayo kakuhle, kunye nokungahambelani kwemithetho efanayo ehambelana ne-impeller machining enzima uqikelelo lwempompo yokusebenza. Ngoko ke, i-diameter ye-impeller ayifane iyancipha ngaphantsi kwe-70% yobukhulu bayo bokuqala.

Kwezinye iimpompo, ukusika i-impeller kwandisa i-net positive suction head (NPSHR) efunwa yimpompo. Ukuthintela i-cavitation, ipompo ye-centrifugal kufuneka isebenze kuxinzelelo oluthile kwindawo yokungena kwayo (okt NPSHA ≥ NPSHR). Ukunciphisa umngcipheko we-cavitation, impembelelo ye-impeller cutting kwi-NPSHR kufuneka ihlolwe ngokusebenzisa idatha yomenzi kulo lonke uluhlu lweemeko zokusebenza.