行业解决方案
Power industry solutions

Power industry solutions

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电力行业解决方案

Time of issue:2021-08-05 11:04:49
The necessity of steel structure anticorrosion in power industry
 
There are many high-temperature and highly corrosive environments in the power industry. In this environment, traditional coatings are prone to cracking, peeling, and failure.
Taking the flue gas desulfurization system of a power plant, in the wet flue gas desulfurization device, there are four locations that are most vulnerable to corrosion damage, namely: absorber, scrubber, duct outlet, mixing chamber and flue. The acid condensate formed in the flue gas desulfurization process, coupled with the environment such as wear, pitting and chlorination corrosion, are the root causes of corrosion damage to stainless steel scrubbers.
Factors such as high temperature, dew point, dry-wet cycle, gas flow rate, high-concentration sulfate solution, fluoride and chloride will accelerate pitting and crevice corrosion.
 
Coating reference system for steel structure of substation>>
 
Examples of painted parts
Protection plan
Road number
thickness(μm)
Substation steel structure surface
Surface pretreatment
Sandblasting and rust removal reach Sa2.5 level
Cold spray zinc primer
2
80-120
High-temperature pipelines in substations
Surface pretreatment
Sandblasting and rust removal reach Sa2.5 level
Silicone high temperature resistant paint
1
60
Coating reference system for steel structure of thermal power plant>>
 
Examples of painted parts
Protection plan
Road number
thickness(μm)
Air cooling platform/coal shed grid
Surface pretreatment
Sandblasting and rust removal reach Sa2.5 level
Cold spray zinc primer
2
100
Silver metallic finish
1
20
Boiler bracket
Surface pretreatment
Sandblasting and rust removal reach Sa2.5 level
Cold spray zinc primer
1
80
Cold spray zinc sealant 80um
1
80
Polyurethane finish 70um
1
70
 
Solar energy steel structure coating reference system>>
 
Examples of painted parts
Protection plan
Road number
thickness(μm)
Solar steel structure surface
 
Surface pretreatment
Sandblasting and rust removal reach Sa2.5 level
Cold spray zinc primer
2
80-120
Silver metallic finish
1
60
 
Reference System for Maintenance and Painting of Power Steel Structure>>
 
Examples of repaired painted parts
Protection plan
Road number
thickness(μm)
Air-cooled/Boiler Support/Suspended Suite/Coal Conveying Station Shed/Grid 
 
Surface pretreatment
Sandblasting and rust removal reach Sa2.5 level
Cold spray zinc primer 1 80-120
Epoxy Mica Intermediate Paint
1 60-80
Fluorocarbon topcoat
1
60

 

Power industry painting case

行业解决方案

Power industry painting case

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