风电行业解决方案

Time of issue:2021-08-05 10:27:23

The necessity of anti-corrosion for wind power equipment

The natural conditions of the wind field where the wind power generation equipment is located are quite harsh, with winds above level 4 all year round, accompanied by the alternating effects of wind, sand, strong sunlight, wind, rain, ice and snow, and cold currents and high temperatures. A wind power station located by the sea is also eroded by salt spray. Therefore, effective anti-corrosion measures must be adopted to protect wind turbines and towers, extend their service life, and reduce frequent maintenance work.
Zindn's cold spray zinc series products can provide long-term protection for wind power equipment.

Wind power equipment painting reference system＞＞

Environment	Location	Coating grade	Protection plan	Road number	thickness(μm)	Total dry film thickness(μm)
I: Inland cities and industrial atmospheric environment, moderate SO2 pollution	Outer surface of wind turbine tower/outer surface of engine room	C3	Secondary surface treatment	Sandblasted to Sa2.5 level, surface roughness is Rz 50～80µm
			Cold spray zinc	1	50	180
			Intermediate paint	1	80
			Polyurethane finish	1	50
	The inner surface of the wind turbine tower/the inner surface of the nacelle	C3	Secondary surface treatment	Sandblasted to Sa2.5 level, surface roughness is Rz 50～80µm
			Cold spray zinc	2	80	180
			Intermediate paint	1	100	180
Ⅱ: Inland cities and industrial atmospheric dust environment, moderate SO2 pollution	Outer surface of wind turbine tower/outer surface of engine room	C3-Sandstorm	Secondary surface treatment	Sandblasted to Sa2.5 level, surface roughness is Rz 50～80µm
			Cold spray zinc	1	50	300
			Intermediate paint	2	200
			Polyurethane finish	1	50
	The inner surface of the wind turbine tower/the inner surface of the nacelle	C3	Secondary surface treatment	Sandblasted to Sa2.5 level, surface roughness is Rz 50～80µm
			Cold spray zinc	2	80	180
			Intermediate paint	1	100	180
Ⅲ: Industrial areas and coastal areas with moderate salinity	Outer surface of wind turbine tower/outer surface of engine room	C4	Secondary surface treatment	Sandblasted to Sa2.5 level, surface roughness is Rz 50～80µm
			Cold spray zinc	1	50	220
			Intermediate paint	1	120
			Polyurethane finish	1	50
	The inner surface of the wind turbine tower/the inner surface of the nacelle	C3	Secondary surface treatment	Sandblasted to Sa2.5 level, surface roughness is Rz 50～80µm
			Cold spray zinc	2	80	180
			Intermediate paint	1	100	180
Ⅳ: Industrial areas with high humidity and harsh atmospheric environment, coastal areas with high salinity	Outer surface of wind turbine tower/outer surface of engine room	C5	Secondary surface treatment	Sandblasted to Sa2.5 level, surface roughness is Rz 50～80µm
			Cold spray zinc	1	60	320
			Intermediate paint	2	200
			Polyurethane finish	1	60
	The inner surface of the wind turbine tower/the inner surface of the nacelle	C4	Secondary surface treatment	Sandblasted to Sa2.5 level, surface roughness is Rz 50～80µm
			Cold spray zinc	1	60	260
			Intermediate paint	2	200	260
Ⅴ：Marine atmosphere	Outer surface of wind turbine tower/outer surface of engine room	CX	Secondary surface treatment	Sandblasted to Sa2.5 level, surface roughness is Rz 50～80µm
			Cold spray zinc	1	60	340
			Intermediate paint	1	220
			Polyurethane finish	1	60
	The inner surface of the wind turbine tower/the inner surface of the nacelle	C4	Secondary surface treatment	Sandblasted to Sa2.5 level, surface roughness is Rz 50～80µm
			Cold spray zinc	1	60	260
			Intermediate paint	2	200	260
	Flange		Cold spray zinc	2	80~120
	Flange bolt hole		Cold spray zinc	2	80~120
	fastener		Cold spray zinc	2	80~120
	platform		Cold spray zinc	2	80~120

Reference System for Maintenance and Painting of Wind Power Equipment＞＞

Examples of painted parts	Protection plan	Road number	thickness(μm)
Bolts and flanges	Surface pretreatment	Sandblasting and rust removal reach Sa2.5 level
Bolts and flanges	Cold spray zinc primer	1	80-120
Tower	Surface pretreatment	Sandblasting and rust removal reach Sa2.5 level
	Cold spray zinc primer	1	80
	Epoxy Mica Intermediate Paint	1	60-80
	Fluorocarbon topcoat	1	60