Yankewar impeller shine tsarin sarrafa diamita na impeller (blade) don rage adadin kuzarin da aka ƙara a cikin ruwan tsarin. Yanke na'urar motsa jiki na iya yin gyare-gyare masu amfani don yin famfo aiki saboda wuce gona da iri, ko ayyukan ƙira na ra'ayin mazan jiya ko canje-canje a cikin nauyin tsarin.

Yaushe Za a Yi La'akari da Yankan Impeller?

Ya kamata masu amfani na ƙarshe suyi la'akari da yanke mai kunnawa lokacin da kowane ɗayan waɗannan sharuɗɗan ya faru:

1. Yawancin bawul ɗin kewayawa na tsarin suna buɗewa, yana nuna cewa kayan aikin tsarin na iya samun wuce gona da iri

2. Ana buƙatar matsawa mai yawa don sarrafa kwarara ta hanyar tsari ko tsari

3. Matsakaicin amo ko girgiza suna nuna wuce gona da iri

4. Aiki na famfo ya karkata daga wurin ƙira (aiki a cikin ƙaramin adadin ruwa)

Amfanin Yankan Tusa

Babban fa'idar rage girman impeller shine rage farashin aiki da kulawa. Ƙarfin kuzarin ruwa yana ɓarna akan layukan kewayawa da magudanar ruwa, ko kuma yana bacewa a cikin tsarin azaman hayaniya da girgiza. Ajiye makamashi yayi daidai da cube na rage diamita.

Saboda rashin ingancin injina da famfo, ƙarfin motar da ake buƙata don samar da wannan ƙarfin ruwa (ikon) ya fi girma.

Baya ga tanadin makamashi, yankan multistage a tsaye injin injin famfo impellers rage lalacewa da tsagewa a kan tsarin bututu, bawuloli da bututu goyon bayan. Girgizawar bututun da ya haifar ta hanyar kwarara na iya samun sauƙin gajiyar bututun walda da haɗin ginin inji. A tsawon lokaci, tsattsage walda da sako-sako da haɗin gwiwa na iya faruwa, wanda ke haifar da ɗigogi da raguwar lokacin gyarawa.

Ƙarfin ruwa mai yawa kuma ba a so ta fuskar ƙira. Matsalolin bututu galibi ana nisa su da girmansu don jure madaidaicin lodi daga nauyin bututu da ruwa, nauyin matsa lamba daga matsi na ciki na tsarin, da faɗaɗa sakamakon canjin zafin jiki a aikace-aikacen zafin jiki mai ƙarfi. Jijjiga daga wuce haddi na makamashin ruwa yana sanya nauyin da ba za a iya jurewa ba akan tsarin kuma yana haifar da yoyo, raguwa da ƙarin kulawa.

iyakancewa

Yanke injin famfo famfo mai ɗorewa a tsaye yana canza yanayin aikin sa, kuma rashin daidaituwa a cikin irin waɗannan dokokin da ke da alaƙa da injin injin impeller yana dagula hasashen aikin famfo. Saboda haka, da wuya a rage diamita impeller kasa 70% na ainihin girmansa.

A cikin wasu famfo, yankan impeller yana ƙaruwa da net tabbatacce tsotsa shugaban (NPSHR) da ake buƙata ta famfo. Don hana cavitation, famfo na centrifugal dole ne yayi aiki a wani matsa lamba a mashigarsa (watau NPSHA ≥ NPSHR). Don rage haɗarin cavitation, tasirin yankan impeller akan NPSHR yakamata a kimanta ta amfani da bayanan masana'anta akan duk yanayin yanayin aiki.