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Anti-corrosion protection system for combined pump station of nuclear power plant

A technology for protection systems and nuclear power plants, applied in the field of nuclear power plant water systems, can solve problems such as over-protection and under-protection of metal structures

Pending Publication Date: 2021-06-25
GUANGDONG NUCLEAR POWER JOINT VENTURE +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide an anti-corrosion protection system for combined pumping stations of nuclear power plants, aiming to solve the problem of under-protection or over-protection of metal structures in traditional impressed current anti-corrosion protection schemes

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  • Anti-corrosion protection system for combined pump station of nuclear power plant
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  • Anti-corrosion protection system for combined pump station of nuclear power plant

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Embodiment Construction

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations...

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Abstract

The invention is applicable to the technical field of water systems for nuclear power plants, and particularly relates to an anti-corrosion protection system for a combined pump station of a nuclear power plant. The anti-corrosion protection system comprises a plurality of anti-corrosion protection subsystems, a cathode of each anti-corrosion protection subsystem is connected with at least one metal structure under the same environmental condition, current signals with corresponding magnitudes are output according to the potentials of the connected metal structures and a preset potential value, so that impressed current anti-corrosion protection is carried out on the connected metal structures, meanwhile, the potentials of all the metal structures are maintained within the optimal protection potential range, the problems of steel bar corrosion and concrete protection layer cracking caused by long-term influence of seawater and moisture on the metal structures of the combined pump station of the nuclear power station are solved, and the metal structures are effectively protected.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant water systems, and in particular relates to an anti-corrosion protection system for combined pumping stations of nuclear power plants. Background technique [0002] The powerhouse of the combined pumping station of the nuclear power plant is located at the seawater inlet of the power station. Metal structures (such as reinforced concrete structures) have been affected by seawater moisture for a long time, and some concrete components have corrosion of steel bars and cracking of the concrete protective layer. [0003] In order to solve this problem, the impressed current cathodic protection scheme is usually used for anti-corrosion, but because the metal structure of the combined pumping station of the nuclear power plant is a complex multi-phase system, and the resistivity of the concrete is high and uneven, the use of the same impressed current leads to the anti-corrosion protection sy...

Claims

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Application Information

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IPC IPC(8): C23F13/20C23F13/04
CPCC23F13/20C23F13/04C23F2201/02
Inventor 颜永贵
Owner GUANGDONG NUCLEAR POWER JOINT VENTURE