Cov twj centrifugal tau siv dav hauv ntau qhov kev lag luam rau kev hloov cov kua dej vim lawv qhov ua tau zoo thiab kev ntseeg tau zoo. Txawm li cas los xij, impeller shedding yog ib qho teeb meem uas cuam tshuam rau kev ua haujlwm thiab kev pabcuam lub neej ntawm cov twj centrifugal. Impeller shedding tshwm sim thaum cov hniav los yog cov vanes ntawm lub impeller tawg, ua rau txo qis tus nqi thiab nce vibrations thiab suab nrov.
Muaj ntau ntau yam uas tuaj yeem ua rau impeller tso rau hauv cov twj centrifugal. Txawm li cas los xij, cov hauv qab no yog cov feem ntau:
1. Khoom tawg: Qhov zoo ntawm cov khoom siv impeller yog qhov tseem ceeb hauv kev txiav txim siab tiv thaiv kev tawg. Yog tias cov khoom siv hauv lub impeller tsis tsim nyog lossis tsis zoo, nws tuaj yeem ua rau impeller tawg. Yog li ntawd, nws yog ib qho tseem ceeb heev uas yuav tau xaiv cov khoom zoo xws li stainless hlau, bronze, los yog lwm yam alloys los tiv thaiv impeller shedding.
2. Cavitation: Cavitation tshwm sim thaum lub siab nyob rau hauv lub kaw lus txo mus rau lub vapor siab ntawm cov kua. Nws ua rau ib tug cia li poob rau hauv cov kua qhov ntom, ua rau cov tsim thiab tom qab vau ntawm npuas. Cavitation ua rau muaj kev ntxhov siab loj heev ntawm lub impeller hniav, uas tuaj yeem ua rau tawg.
3. Kev ua haujlwm ntau dhau: Kev ua haujlwm ntawm lub twj tso kua mis dhau qhov kev pom zoo lossis ntsuas lub peev xwm tuaj yeem ua rau muaj kev ntxhov siab ntau dhau ntawm lub impeller, ua rau lub impeller poob. Yog li ntawd, nws yog ib qho tsim nyog los xyuas kom meej tias lub twj tso kua mis ua haujlwm nyob rau hauv cov kev txwv pom zoo.
4. Corrosion: Corrosion ntawm lub impeller tuaj yeem ua rau cov chaw tsis muaj zog uas ua rau muaj kev tawg. Corrosion-resistant cov ntaub ntawv yuav tsum tau siv nyob rau hauv corrosive ib puag ncig kom tsis txhob impeller puas.
5. Kev ua tsis zoo: Kev ua tsis zoo ntawm lub twj tso kua mis thiab lub cev muaj zog tuaj yeem ua rau muaj kev vibration thiab ua rau impeller poob. Yuav kom kov yeej qhov teeb meem no, cov txheej txheem kev sib raug zoo yuav tsum tau ua raws thaum lub sij hawm lub twj tso kua mis.
Hauv kev xaus, impeller shedding yog ib qho teeb meem tshwm sim hauv cov twj centrifugal, tab sis nws tuaj yeem tiv thaiv tau los ntawm kev xaiv cov khoom tsim nyog rau lub impeller, kev khiav hauj lwm hauv cov kev txwv pom zoo, tiv thaiv cavitation, corrosion, thiab misalignment. Los ntawm kev saib xyuas kom zoo ntawm cov twj centrifugal, impeller shedding tuaj yeem txo qis, thiab cov twj tso kua mis tuaj yeem ua haujlwm tau zoo thiab ua haujlwm tau zoo rau lub sijhawm ntev.
