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Weatherproof surface treatment combinational optimization technology for power transmission type slip ring of high-power wind driven generator

A technology of surface treatment and combination optimization, which is applied in hot-dip plating process, metal material coating process, anodic oxidation, etc., can solve the problem of high production cost, high price and complex climate and environmental conditions of imported high-power wind turbine slip rings. problems, achieve good anti-corrosion effect, reduce pollution and reduce maintenance

Inactive Publication Date: 2011-10-19
JIANGSU SHUANGHUI FUTAI ELECTRIC
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AI Technical Summary

Problems solved by technology

Moreover, from the domestic application of foreign products, due to the relatively more complex and severe domestic climate and environmental conditions, various problems have been exposed in the use of foreign slip rings, especially the weather resistance and anti-corrosion needs to be further strengthened.
[0004] Imported high-power wind turbine slip rings have high production costs and high prices, and cannot fully adapt to various domestic and complex working conditions. This has brought great obstacles to the country's overall development of clean energy strategies, including wind power generation. Wind turbine slip ring weather-resistant treatment technology is one of its key technologies

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Different anti-corrosion processes are used for different parts of the slip ring:

[0020] 1) Stainless steel part: immerse stainless steel in a solution containing rare earth ions for a period of time or use stainless steel as a cathode to electrify to form a rare earth passivation film on the surface of the stainless steel, and then use ion implantation on the surface of the rare earth passivation film A cerium oxide film is formed.

[0021] 2) Alloy part: immerse the alloy in a solution containing rare earth ions for a period of time or use the alloy as a cathode for electrification to form a rare earth passivation film on the surface of the alloy, and then apply Dacromet coating on the surface of the rare earth passivation film. layer.

[0022] 3) Fasteners: use hot-dip galvanizing or mechanical galvanizing to form a galvanized layer on the surface.

[0023] The thickness of the dacromet coating is between 8um.

Embodiment 2

[0025] Different anti-corrosion processes are used for different parts of the slip ring:

[0026] 1) Stainless steel part: use ion implantation method to form cerium oxide film on the surface of stainless steel;

[0027] 2) Alloy part: Dacromet coating is provided on the surface of the alloy part;

[0028] 3) Fasteners: use hot-dip galvanizing or mechanical galvanizing to form a galvanized layer on the surface.

[0029] The thickness of the dacromet coating is between 6um.

[0030] In particular, in a humid environment, the stainless steel part adopts the anti-corrosion process in the first embodiment.

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Abstract

The invention discloses a weatherproof surface treatment combinational optimization technology for a power transmission type slip ring of a high-power wind driven generator, relating to the weatherproof surface treatment technology of the slip ring of the wind driven generator. Aiming at different parts of the slip ring, the following different anti-corrosion technologies are adopted: firstly, stainless steel part: an ion injection method is adopted so as to lead a cerium oxide film to be formed on the surface of the stainless steel; secondly, alloy part: a dacromet coating layer is arranged on the surface of the alloy part; and thirdly, fastening piece: hot dip galvanization or mechanical galvanization is adopted, so that a galvanization layer is formed on the surface. The weatherproof surface treatment combinational optimization technology has less pollution to environment and the treated slip ring is strong in anti-corrosion property.

Description

technical field [0001] The invention relates to a weather-resistant surface treatment technology for a wind-driven generator slip ring, in particular to a brand-new anti-corrosion and weather-resistant treatment technology for a long-term anti-corrosion and weather-resistant treatment technology for the surface of a slip ring of a high-power wind power generator under complex climatic conditions. Background technique [0002] The development of slip rings for 3.6 MW wind turbines is aimed at replacing imported products from Germany, and the key technologies for the production of 3.6 MW slip ring prototypes are developed, including slip ring structures, adapting to long-term and high-speed operation performance requirements, and being used for a long time at sea, Inner Mongolia grasslands, It is reliable to use in harsh environments such as deserts and can reduce maintenance or maintenance-free requirements during the cycle. Replace 1.5MW and 2.0MW projects. Under the condit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C28/00C23F17/00C23C14/48C23C2/06C25D11/34
Inventor 胡建华应之丁周黎华
Owner JIANGSU SHUANGHUI FUTAI ELECTRIC
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