Anti-corrosion construction device and anti-corrosion construction method for the integral inner wall of penstock steel pipes in hydropower stations

A pressure steel pipe and construction device technology, which is applied to the surface coating liquid device, spray device, coating, etc., can solve the problems of damage to the anti-corrosion layer, increased scaffolding, and time-consuming anti-corrosion layer, etc., to achieve high wear resistance Erosion resistance, shortened construction period, and excellent corrosion performance

Active Publication Date: 2022-02-22
马帅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, most of the anticorrosion of the inner wall of the pressure steel pipe of the hydropower station is painted with anticorrosion paint, which is difficult to withstand the long-term erosion and corrosion of the water flow, resulting in premature damage to the anticorrosion layer
Due to the long pressure steel pipe, especially the high slope and slope of the inclined pipe section, it is more difficult to erect the overall anti-corrosion inner wall scaffolding. Due to the inclined design of the inclined pipe section of the penstock steel pipe, when the inner anti-corrosion scaffold is erected, the scaffold pole must be welded to the pipeline. The lower side of the inner wall can play the role of supporting the scaffolding. When the scaffolding is removed after the internal anticorrosion is completed, it will take a lot of time to repair the anticorrosion layer at the welding point, so that the construction period of the internal anticorrosion will be delayed several times.

Method used

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  • Anti-corrosion construction device and anti-corrosion construction method for the integral inner wall of penstock steel pipes in hydropower stations

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] see figure 1 , an anticorrosion construction device and anticorrosion construction method for the overall inner wall of a penstock steel pipe of a hydropower station, the specific steps are as follows:

[0027] 1. According to the size of the internal surface area of ​​the pressure steel pipe, process and produce internal anti-corrosion ceramic rods or ceramic powder anti-corrosion materials;

[0028] 2. Make and install the upper console support and upper console 5, the lower console bracket and the lower console 6, the mobile console 7, the independent guide rail 8 and the traction wire rope 10 according to the length and inclination of the penstock inclined section 1, so that the upper The operating platform 5, the lower operating platform 6, and the mobile operating platform 7 are in a horizontal state, and the inclination of the independent guide rail 8 is the same as that of the inclined section 1 of the penstock. The mobile console roller 9 matches the independe...

Embodiment 2

[0033] see figure 1 , an anticorrosion construction device and anticorrosion construction method for the overall inner wall of a penstock steel pipe of a hydropower station, the specific steps are as follows:

[0034] 1. According to the size of the internal surface area of ​​the pressure steel pipe, process and produce internal anti-corrosion tungsten carbide rod anti-corrosion materials;

[0035] 2. Make and install the upper console support and upper console 5, the lower console bracket and the lower console 6, the mobile console 7, the independent guide rail 8 and the traction wire rope 10 according to the length and inclination of the penstock inclined section 1, so that the upper The operating platform 5, the lower operating platform 6, and the mobile operating platform 7 are in a horizontal state, and the inclination of the independent guide rail 8 is the same as that of the inclined section 1 of the penstock. The mobile console roller 9 matches the independent guide r...

Embodiment 3

[0040] see figure 1 , an anticorrosion construction device and anticorrosion construction method for the overall inner wall of a penstock steel pipe of a hydropower station, the specific steps are as follows:

[0041] 1. According to the size of the internal surface area of ​​the pressure steel pipe, process and produce internal anti-corrosion thermal spray zinc wire and solvent-free epoxy anti-corrosion and wear-resistant coating;

[0042] 2. Make and install the upper console support and upper console 5, the lower console bracket and the lower console 6, the mobile console 7, the independent guide rail 8 and the traction wire rope 10 according to the length and inclination of the penstock inclined section 1, so that the upper The operating platform 5, the lower operating platform 6, and the mobile operating platform 7 are in a horizontal state, and the inclination of the independent guide rail 8 is the same as that of the inclined section 1 of the penstock. The mobile conso...

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Abstract

The invention discloses an anti-corrosion construction device and an anti-corrosion construction method for the integral inner wall of pressure steel pipes in hydropower stations. Upper and lower operating platforms are installed in the upper and lower bends of pressure steel pipes in upper and lower horizontal sections, and pressure steel pipes in inclined sections are equipped with The mobile operation platform, the upper and lower operation platforms are connected with four independent guide rails located in the pressure steel pipe of the inclined section. To connect, the construction personnel use the sandblasting derusting device and the thermal spraying ceramic spray gun to derust the inner wall of the pressure steel pipe and thermally spray the anti-corrosion and wear-resistant coating on the mobile operation platform. In the present invention, the construction of anti-corrosion and wear-resistant materials is done online as a whole. The anti-corrosion and wear-resistant materials have excellent liquid immersion and corrosion resistance, high wear resistance and erosion resistance, and ensure the long-term safe operation of penstock steel pipes in hydropower stations. The repair of the anti-corrosion layer can shorten the construction period of the anti-corrosion in the penstock.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion construction of the inner wall of the pressure steel pipe of a hydropower station, in particular to an anti-corrosion construction device and an anti-corrosion construction method for the integral inner wall of a pressure steel pipe of a hydropower station. Background technique [0002] my country has a vast territory and abundant hydropower resources. As a clean and renewable energy source, hydropower has significant environmental benefits and its development potential is huge. With the adjustment of the national economic structure, the adjustment of the energy structure, especially the implementation of the strategy of energy conservation and emission reduction, the vigorous development of hydropower and clean energy is the only way for China's energy structure adjustment, and hydropower resources have been actively developed and developed as energy strategies and energy security. field. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B13/06B05D7/22
CPCB05B13/0627B05D7/222
Inventor 马付林李国胜杜英勇余秋微李现修马帅户红展刘宗洋鲁朝栋
Owner 马帅
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