Impeller yekucheka ndiyo nzira yekugadzira dhayamita ye impeller (blade) kuderedza huwandu hwesimba rakawedzerwa kune system fluid. Kucheka impeller kunogona kuita gadziriso dzinobatsira kupomba mashandiro nekuda kwekuwandisa, kana kunyanya kuchengetedza maitiro ekugadzira kana shanduko mukuremerwa kwehurongwa.

Nguva Yekufunga Impeller Kucheka?

Vashandisi vekupedzisira vanofanirwa kufunga nezvekucheka iyo impeller kana chero anotevera mamiriro aitika:

1. Mazhinji system bypass mavharuvhu akavhurika, zvichiratidza kuti system michina inogona kuwana yakawandisa kuyerera

2. Kuwedzeredza throttling kunodiwa kudzora kuyerera kuburikidza nehurongwa kana maitiro

3. Makwiriro eruzha kana kudedera anoratidza kuyerera kwakanyanya

4. Kushanda kwepombi kunotsauka kubva panzvimbo yekugadzira (kushanda pane zvishoma zvekuyerera)

Benefits Kucheka Impellers

Kubatsira kukuru kwekudzikisa impeller saizi yakaderedzwa kushanda uye kugadzirisa mari. Simba shoma remvura rinoparadzwa pamitsara yekubypass uye throttles, kana kuti inoparadzirwa muhurongwa seruzha uye vibration. Kuchengetedzwa kwemagetsi kunoda kuenzana necube yedhayamita yakaderedzwa.

Nekuda kwekusashanda kwemamotor nemapombi, simba remota rinodiwa kugadzira iri remvura simba (simba) rakakwira.

Mukuwedzera kune kuchengetedza simba, kucheka multistage vertical turbine pombi impellers inoderedza kupera uye kubvarura pamapombi ehurongwa, mavharuvhu uye pombi zvinotsigira. Kudedera kwepombi kunokonzerwa nekuyerera kunogona nyore kuneta pombi welds uye majoini emuchina. Nokufamba kwenguva, mawelds akatsemuka uye majoini akasununguka anogona kuitika, zvichitungamira kudonha uye nguva yekudzikira yekugadzirisa.

Simba remvura rakawandisa zvakare haridiwe kubva pakuona kwekugadzira. Mapombi anotsigisa anowanzo kupatsanurwa uye akakurisa kuti akwanise kumisa mitoro kubva pahuremu hwepombi uye mvura, kurema kwemutoro kubva kusimba remukati rehurongwa, uye kuwedzera kunokonzerwa nekushanduka kwetembiricha mumashandisirwo ane simba. Vibrations kubva kune yakawandisa fluid simba inoisa mitoro isingatsungirike pane sisitimu uye inotungamira mukuvuza, kuderera uye kumwe kugadzirisa.

kukamurwa

Kucheka yakatwasuka multistage turbine pombi impeller inoshandura kushanda kwayo kushanda zvakanaka, uye zvisina mutsara mumitemo yakafanana ine chekuita ne impeller machining inoomesa kufungidzira kwekuita kwepombi. Naizvozvo, iyo impeller dhayamita haiwanzo kuderedzwa pazasi 70% yehukuru hwayo hwepakutanga.

Mune mamwe mapombi, impeller yekucheka inowedzera net positive suction head (NPSHR) inodiwa nepombi. Kudzivirira cavitation, pombi ye centrifugal inofanira kushanda pane imwe dzvinyiriro panzvimbo yayo (kureva NPSHA ≥ NPSHR). Kuti uderedze njodzi yecavitation, kukanganisa kweimpeller kucheka paNPSHR kunofanirwa kuongororwa uchishandisa data remugadziri pamusoro peiyo yese mamiriro ekushanda.