A cikin famfunan slurry impeller da kuma cikin cikin casing koyaushe ana fuskantar da slurry kuma dole ne a kiyaye su daidai da lalacewa.
"Zaɓin zaɓi don impeller da casing yana da mahimmanci kamar zaɓin famfo kanta!"
Akwai yanayi daban-daban guda uku waɗanda suke ƙirƙirar lalacewa a cikin famfon slurry:
Abrasion,Yashwa,Lalata
Abrasion
Akwai manyan nau'ikan abrasion guda uku:
A cikin famfunan slurry muna da yawan nika da ƙananan damuwa abrasion.
Abrasion rate ya dogara da girman barbashi da taurin.
Abrasion yana faruwa ne kawai a yankuna biyu a cikin famfon slurry:
1. Tsakanin mai motsi da tashar shigarwa.
2. Tsakanin shaft hannun riga da maras motsi shiryawa.
Yashewa
Wannan shine mafi rinjaye lalacewa a cikin famfunan slurry. Dalilin shi ne cewa barbashi a cikin slurry ya bugi kayan saman a kusurwoyi mabambanta.
Raguwar zaizayar kasa tana da nauyi ta yadda ake sarrafa famfo. Suturar yashewa, gabaɗaya, aƙalla a ƙimar BEP -, kuma yana ƙaruwa tare da ƙarancin ƙarfi da ƙari mai girma.
Saboda dalilan da ba a fahimci su da kyau ba, lalacewar zaizayar na iya ƙaruwa sosai idan an bar famfo ya yi aiki akan “zugi”; ma'ana, shan iska a cikin bututun shiga.
An ba da shawarar cewa wannan na iya haifar da cavitation, saboda saman famfo da ke girgiza yayin da iska ke buwa kansu. Wannan shi ne, duk da haka, rarrabuwa ne don karɓar matsayin kumfa na iska gabaɗaya suna hana cavitation ta hanyar motsi don huɗar kofofin tururi.
Akwai manyan yashewa guda uku:
Tasirin yashwa akan abubuwan fanfo:
Impeller
Mai tursasawa yana fuskantar tasirin lalacewa (mai girma da ƙasa) galibi a cikin ido, a gefen shlandon gland (A), lokacin da ow ya juya 90 °. A kan gefen gefen bangon (B).
Zaman gado da ƙananan tasirin kusurwa suna faruwa tare da vanes tsakanin shrouds impeller (C).
Layi na gefe (mashigai da na baya)
Linungiyoyin layi suna ƙarƙashin gado mai zamewa da ƙwanƙwasawa da niƙan abrasion.
Volume
Uteararrakin yana ƙarƙashin tasirin lalacewa akan ruwan da aka yanke. Gefen zamiya da lalacewar tasiri mai kusurwa suna faruwa a cikin sauran ƙarfin.
Lalata:
Lalata (da harin sinadarai) na sassan rigar a cikin Pumpurry Pump abu ne mai rikitarwa duka na ƙarfe da kayan elastomer.
Don jagora, ana ba da teburin juriya na sinadarai don karafa da kayan elastomer akan bin kuma a cikin sassan Teburin Juriya na Kayan Haɗin.
Kayan aiki |
Kayan jiki |
Kayan aikin sinadarai |
Kayan aikin zafi |
|||
Max. Tukwici Gudu (m / s) |
Sa juriya |
Ruwan zafi, narkewar acid |
Andarfi da |
Mai, hydro |
Gwargwadon sabis mafi girma. (OC) |
|
Halittun roba |
27 |
Yayi kyau |
Madalla |
Gaskiya |
Mara kyau |
(-50) zuwa 65 100 |
Chloroprene 452 |
27 |
Yayi kyau |
Madalla |
Gaskiya |
Yayi kyau |
90 120 |
EPDM 016 |
30 |
Yayi kyau |
Madalla |
Yayi kyau |
Mara kyau |
100 130 |
Butyl |
30 |
Gaskiya |
Madalla |
Yayi kyau |
Mara kyau |
100 130 |
Polyurethane |
30 |
Yayi kyau |
Gaskiya |
Mara kyau |
Yayi kyau |
(-15) 45-50 65 |
Saka kariya - waɗanne zaɓi ne?
Akwai wasu manyan zaɓuɓɓuka a cikin zaɓin kariyar lalacewar famfunan slurry:
Impeller da casing a cikin Hard Metal a cikin daban-daban gami da farin baƙin ƙarfe da karfe.
Impeller a cikin elastomers da kuma casing kariya ta elastomer liners. Elastomers galibi roba ne a cikin halaye daban-daban ko polyurethane.
Haɗuwa da impeller na ƙarfe mai ƙarfi da casing na elastomer.
Zaɓin kayan sawa
zabin abubuwan lalacewa shine daidaito tsakanin juriya da lalacewar kayan sawa.
Akwai dabaru guda biyu don tsayayya da lalacewa:
Abun lalacewa ya zama da wuya a tsayayya wa aikin yanke abubuwa masu tsauri! ko Abun kayan sawa dole ya zama na roba domin ya iya shanye gigicewa da sake komowar abubuwa!
Sigogi don zaɓi
Zaɓin sassan kayan sawa al'ada ya dogara da sigogi masu zuwa:
M ƙarfi (m SG, siffar da taurin)
Zafin zafin jiki
pH da sunadarai
impeller gudun
Post lokaci: Jan-08-2021