Alloy xaiv rau Geothermal Brines
Geothermal kua yog kub, saline, thiab feem ntau acidic, yog li kev xaiv cov khoom yog raws li cov kua chemistry tsom xam. Super duplex stainless hlau xws li UNS S32750 tiv taus pitting thiab chloride stress corrosion nyob rau hauv siab -chloride brines. Titanium Qib 2 tuav cov kua qaub acidic nrog kev tiv thaiv corrosion siab. Nickel alloys yog siv rau thaj chaw kub siab tshaj plaws, thiab cov cement-lined carbon steel yog qhov kev xaiv pheej yig rau cov uas tsis yog- corrosive seem. Kev xaiv cov khoom kawg yog nyob ntawm qhov kub, pH, cov ntsiab lus chloride, thiab muaj cov pa roj carbon dioxide thiab hydrogen sulfide.
Engineering Flash Steam Pipes rau Expansion
Flash steam piping ua haujlwm ntawm qhov kub thiab txias thiab yuav tsum ua kom haum rau cov thermal txav loj. Ntau - dav hlau expansion loops haum rau kev txav ntawm 300 mm lossis ntau dua, lub caij nplooj ntoos hlav hangers tas li tuav cov kev txhawb nqa, thiab cov kev taw qhia kev txhawb nqa tiv thaiv buckling. Kev txheeb xyuas cov ntsiab lus kawg txheeb xyuas qhov kev faib tawm kev ntxhov siab, thiab thauj tog rau nkoj yog txwv rau li 20 kN ib square meter los tiv thaiv cov qauv kev txhawb nqa.
Vuam cov txheej txheem los tiv thaiv kev nyuaj siab Corrosion Cracking
Vuam ntawm geothermal piping siv tsawg- cua sov- cov khoom siv hluav taws xob cov roj tungsten arc vuam (GTAW) cov txheej txheem, nrog rau qhov kub thiab txias ntawm qhov ntsuas kub qis dua 150 ° C. Cov tshuaj annealing yog siv tom qab vuam qhov xav tau, thiab cov pa hauv nruab nrab tiv thaiv cov hauv paus hniav ntawm oxidation. Rau duplex stainless hlau, ferrite cov ntsiab lus yog tswj nyob rau hauv lub vuam kom muaj corrosion kuj thiab toughness.
Kev tiv thaiv los ntawm Scaling
Geothermal brines tuaj yeem tso silica thiab carbonate nplai. Nyob rau hauv - kab txhaj tshuaj ntawm nplai inhibitors, tshem tawm cov spool daim rau kev tu txhua yam, ua kom tiav sab hauv ntawm li 0.8 micrometers Ra, kev ua haujlwm pigging tsis tu ncua, thiab kev ntsuas ntsuas hauv online ua kom lub cev ua haujlwm tau zoo.
Cov kev coj ua
Cov kev tshawb fawb hauv peb lub hlis twg hauv thaj chaw yaig, kev tshuaj ntsuam xyuas brine chemistry txhua xyoo, peb- xyoo kev tshuaj ntsuam video hauv, kev soj ntsuam corrosion txuas ntxiv, thiab kev tshuaj xyuas kaw tom qab cov xwm txheej seismic txuas ntxiv cov nroj tsuag lub neej thiab tiv thaiv tsis tau teem sijhawm.
Cov lus nug nquag
Q: Cov khoom siv twg yog qhov zoo tshaj plaws rau geothermal brine piping?
A: Qhov kev xaiv nyob ntawm cov kua dej chemistry: super duplex stainless hlau rau siab -chloride brine, titanium rau acidic kua, npib tsib xee alloys rau qhov kub thiab txias, thiab lined carbon steel rau benign seem.
Q: Vim li cas cov voj voog nthuav dav siv hauv cov kav dej flash?
A: Lawv nqus cov thermal expansion ntawm ntau pua millimeters thaum ua kom muaj kev ntxhov siab nyob rau hauv qhov txwv tsis pub thiab tiv thaiv cov thauj tog rau nkoj thiab cov khoom siv nozzles.
Q: Yuav ua li cas yog kev ntxhov siab corrosion cracking tiv thaiv nyob rau hauv welded pob qij txha?
A>Tsawg tshav kub input pulsed GTAW, interpass kub hauv qab 150 degrees C, kev daws annealing, tshem tawm roj tiv thaiv, thiab ferrite tswj nyob rau hauv duplex welds.
Q: Yuav ua li cas scaling tswj nyob rau hauv geothermal kav?
A: Los ntawm kev txhaj tshuaj inhibitor, du sab hauv qhov chaw, tshem tau cov spools, pigging, thiab kev soj ntsuam online.
Q: Cov kev tshuaj ntsuam xyuas dab tsi pom zoo rau cov kav dej hauv av?
A: Kev soj ntsuam xyuas peb lub hlis twg, kev tshuaj xyuas tshuaj lom neeg txhua xyoo, kev tshuaj xyuas peb -xyoo video, kev soj ntsuam corrosion txuas ntxiv, thiab tom qab- kev tshuaj xyuas seismic kaw.
Q: Vim li cas UNS S32750 siv rau hauv cov kev pabcuam hauv av?
A: Nws cov chromium siab, molybdenum, thiab nitrogen cov ntsiab lus muab cov pitting zoo heev thiab lub zog kub, chloride- nplua nuj brines.
Rau geothermal piping khoom xaiv thiab hais lus,tiv tauj peb pab pawg engineering.
