Izesekeli zomkhiqizi we-slurry futha: ukukhetha kwepompo kufanele kunake ini?Ukumelana nokugqwala kokugqwala kwabantu abampofu kuze kube ukuhleleka okuhle kanje : 12% Cr steels <17% Cr steel Ukugqwala kwengcindezi Ukugqwala kwengcindezi kusho ukugqwala kwendawo kanye nokugqwala ngaphansi kwengcindezi ebangelwa ukusebenzisana kwemvelo.Izinsimbi ze-Austenitic CrNi zithambekele kakhulu ekucindezelekeni ukugqwala ku-Cl medium.Ngokuqukethwe kwe-Cl, izinga lokushisa nengcindezi kujwayeleke kakhulu ukugqwala kwengcindezi.Okujwayelekile Okulandelayo 70 ~ 80 ℃ ngaphandle kokucindezeleka ukugqwala komkhiqizi wephampu ye-slurry.Izinyathelo zokuvimbela ukugqwala kwengcindezi kuphezulu okuqukethwe kwe-Ni (Ni> 25% ~ 30%) Cr ˉ Ni austenitic steel mouth Umkhiqizi wephampu yensimbi engagqwali.
Ukugqwala nokuguga Kubhekisela oketshezini olunesivinini esikhulu endaweni yensimbi egugulekayo.Ngokungafani nokugqwala kokuguguleka koketshezi olubi kanye nokuguga okubangelwa okuphakathi kuqukethe .Izinto ezisetshenziswayo ezihlukene zinokugqwala okuhlukile futhi zimelana nokuguga.Ukumelana nokugwazwa kokugqwala ngomehluko phakathi kokujika okuhle: i-ferritic austenitic – ferritic steel < austenitic steels .
I-Cavitation corrosion I-Cavitation yenzeka lapho iphampu ibizwa ngokuthi ukuguguleka kwe-cavitation okubangelwa ukugqwala.Vimbela ukugqwala kwe-cavitation yendlela esebenzayo futhi elula i-cavitation.Ngokuvame ukwenzeka lapho usebenzisa i-cavitation yepompo, ukuze ugweme ukugqwala kwe-cavitation, izinto ezingamelana ne-cavitation zingasetshenziswa,umkhiqizi wepompo ye-slurryigolide, ithusi le-phosphor, insimbi engagqwali, 12% insimbi ye-chromium.Eqinisweni, umonakalo wokugqwala ngokuvamile uwumphumela womphumela ohlangene wezinhlobo ezihlukahlukene zokugqwala , kuya kusici sokukhetha sokuhlanganisa.Okwesibili, impahla yensimbi yepompo nezindlela zokukhetha 1 Izinto .`
Ziningi futha izinto.Izinto ezivamile zensimbi ziyinsimbi ephonswe, insimbi ekhonjiwe, izinsimbi ze-chromium ezingu-12%, insimbi engagqwali ye-austenitic engu-316L i-aluminium engagqwali nokunye.Ngaphezu kwalokho kukhona insimbi ephezulu ye-silicon cast iron for corrosion media , № Re ⒍ st, Monel , B, Hastelloy C, 904, CD4MCu, titanium, titanium alloy.
Ukwakhiwa kwamakhemikhali okuvamile kwe-alloy material iyipompo evamile enezinto ezisizayo ezingezona ezensimbi: I-Teflon , irabha ye-nitrile, irabha ye-chloroprene, irabha ye-fluorine, irabha yokwenziwa, ngaphezu kwalokho i-FFKM, i-graphite, i-glass fiber egcwele i-PTFE nokunye okunjalo.
Isikhathi sokuthumela: Jul-13-2021