Thermal power plant in-service glass flake anticorrosive coating stripping device and sampling method

Abstract

The invention relates to the field of quality evaluation of in-service glass flake anticorrosive coatings of environmental protection facilities behind a furnace of a thermal power plant, and relates to a stripping device and a sampling method for the in-service glass flake anticorrosive coatings of the thermal power plant. The check block comprises a horizontal section and a vertical section which are used for being welded to the surface of the carbon steel base body, the L-shaped ejector block further comprises a horizontal section and a vertical section, the front end of the horizontal section is coated with plastic, a threaded hole is formed in the vertical section, and the jacking bolt is matched with the threaded hole in the vertical section of the L-shaped ejector block. The nut end of the jacking bolt is arranged between the vertical section of the L-shaped stop block and the vertical section of the L-shaped jacking block, and the end of the horizontal section of the L-shaped jacking block makes contact with the glass flake coating. When the horizontal section of the L-shaped ejector block makes contact with the sample, the jacking nut keeps making contact with the check block, the bolt is rotated to push the L-shaped ejector block forwards, the sample is separated from the base material, the sampling method for the in-service glass flake coating is easy to implement, and the blank of sampling of the glass flake coating is filled up.

Description

technical field [0001] The invention relates to the field of quality evaluation of in-service glass flake anti-corrosion coatings for environmental protection facilities in thermal power plants, and relates to a peeling device and a sampling method for in-service glass flake anti-corrosion coatings in thermal power plants. Background technique [0002] The desulfurization process of thermal power plants in my country is dominated by limestone-gypsum wet desulfurization (WFGD). The corrosive medium of the wet desulfurization process poses a serious corrosion threat to the carbon steel materials in the tower and downstream facilities. Preservative treatment. Glass flake coating is a non-fiber reinforced resin-based composite material, which is widely used in the wet desulfurization system of coal-fired power plants because of its excellent anti-corrosion performance and low cost. However, there is currently a lack of product quality standards in the glass flake anti-corrosion ...

AI Technical Summary

Problems solved by technology

[0004] 1. The glass flake coating has poor toughness, which requires professional cutting equipment and reasonable cutting process;

[0005] 2. The adhesion between the glass flake coating and the carbon steel primer is strong, and a special stripping scheme is required;

[0006] 3. The glass flake coating is a polymer material, and the upper temperature limit is about 80°C, and there is a risk of being ignited during the cutting operation;

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