Corrosion ib puag ncig thiab yam cuam tshuam rau corrosion ntawm sluice qhov rooj

Steel qauv sluice rooj vag yog ib qho tseem ceeb rau kev tswj cov dej theem nyob rau hauv hydraulic qauv xws li hydropower chaw nres tsheb, reservoir, sluice thiab nkoj xauv. Nws yuav tsum tau muab tso rau hauv qab dej rau lub sijhawm ntev, nrog kev hloov pauv ntawm qhov qhuav thiab ntub dej thaum qhib thiab kaw, thiab yuav tsum tau ntxuav los ntawm cov dej kub ceev. Tshwj xeeb, cov kab dej yog cuam tshuam los ntawm dej, hnub ci thiab cov kab mob hauv dej, nrog rau cov dej yoj, sediment, dej khov thiab lwm yam khoom ntab, thiab cov hlau yog yooj yim rau corrode, Nws txo qhov kev coj tus kheej ntawm lub rooj vag steel thiab tiag. cuam ​​tshuam kev nyab xeeb ntawm hydraulic engineering. Qee qhov muaj kev tiv thaiv los ntawm txheej txheej, uas feem ntau ua tsis tau tom qab 3 ~ 5 xyoos ntawm kev siv, nrog kev ua haujlwm qis thiab kev saib xyuas siab.

 

Corrosion tsis tsuas yog cuam tshuam rau kev ua haujlwm nyab xeeb ntawm cov qauv, tab sis kuj siv ntau ntawm tib neeg, khoom siv thiab nyiaj txiag los ua haujlwm los tiv thaiv corrosion. Raws li kev txheeb cais ntawm qee qhov kev ua haujlwm sluice gate, qhov kev siv nyiaj txhua xyoo rau lub rooj vag tiv thaiv corrosion yog kwv yees li ib nrab ntawm cov nqi tu txhua xyoo. Nyob rau tib lub sijhawm, ntau tus neeg ua haujlwm yuav tsum tau npaj kom tshem tawm xeb, pleev xim lossis tshuaj tsuag. Yog li ntawd, txhawm rau txhawm rau tswj kev xeb ntawm cov hlau zoo, ua kom lub neej ntev ntawm lub rooj vag steel thiab xyuas kom muaj kev ncaj ncees thiab kev nyab xeeb ntawm kev txuag dej thiab cov dej hauv dej, qhov teeb meem ntev los tiv thaiv corrosion ntawm steel rooj vag tau nyiam ntau yam.

 

Corrosion ib puag ncig ntawm steel qauv sluice rooj vag thiab yam cuam tshuam rau corrosion:

1.Corrosion ib puag ncig ntawm steel qauv sluice rooj vag

Qee qhov steel sluice rooj vag thiab steel qauv nyob rau hauv kev txuag dej thiab hydropower tej yaam num yog immersed nyob rau hauv ntau yam dej zoo (seawater, dej tshiab, industrial wastewater, thiab lwm yam) rau lub sij hawm ntev; Qee qhov feem ntau nyob hauv qhov chaw ntub dej vim qhov hloov pauv ntawm cov dej los yog lub qhov rooj qhib thiab kaw; qee qhov yuav raug cuam tshuam los ntawm kev kub ceev dej ntws thiab kev sib txhuam ntawm cov av, cov khib nyiab ntab thiab dej khov; Ib feem ntawm cov dej saum npoo av los yog saum cov dej kuj tseem cuam tshuam los ntawm qhov chaw ntub dej ntawm cov dej evaporation thiab txaws dej pos huab; Cov qauv ua haujlwm hauv huab cua kuj cuam tshuam los ntawm tshav ntuj thiab huab cua. Vim tias qhov chaw ua haujlwm ntawm lub rooj vag hydraulic tsis zoo thiab muaj ntau yam cuam tshuam, nws yog ib qho tsim nyog los tshuaj xyuas qhov cuam tshuam corrosion.

 

2. Corrosion yam

(1) climatic yam tseem ceeb: cov dej ntawm cov hlau qauv sluice rooj vag yog yooj yim rau corroded los ntawm lub hnub, los nag thiab huab cua.

(2) qhov chaw ntawm cov qauv steel: roughness, mechanical puas, cavitation, vuam tsis xws luag, khoob, thiab lwm yam. muaj kev cuam tshuam zoo rau corrosion.

(3) kev ntxhov siab thiab deformation: qhov ntau dua qhov kev ntxhov siab thiab deformation, qhov corrosion tsis zoo.

(4) dej zoo: cov ntsev cov ntsiab lus ntawm cov dej tshiab yog tsawg, thiab corrosion ntawm lub qhov rooj sib txawv nyob ntawm seb nws cov tshuaj muaj pes tsawg leeg thiab cov pa phem; Seawater muaj ntsev cov ntsiab lus siab thiab zoo conductivity. Seawater muaj ntau cov chloride ions, uas yog corrosive heev rau hlau. Qhov corrosion ntawm steel rooj vag hauv dej hiav txwv yog qhov hnyav dua li hauv dej tshiab.

 


Post lub sij hawm: Dec-17-2021