Working electrode for realizing electrochemical test of high-temperature high-pressure water system

Abstract

The invention relates to the field of an electrochemical test of a high-temperature high-pressure water system, in particular to a working electrode for realizing the electrochemical test of the high-temperature high-pressure water system. The working electrode comprises a metal electrode, a high-temperature sealing piece, a water cooling device and a low-temperature sealing piece, wherein an electrode lead of the metal electrode is used for wrapping a heat-shrink tube; metal hard sealing is existed between the high-temperature sealing piece and a high-pressure kettle cover; the water coolingdevice is arranged on the high-temperature sealing piece; the low-temperature sealing piece is sealed with the water cooling device through an O-shaped ring; the electrode lead of the metal electrodesequentially penetrates through central holes of the high-temperature sealing piece, the water cooling device and the low-temperature sealing piece; and the low-temperature sealing piece is sealed with the electrode lead through a rubber sealing plug. The working electrode is simple to manufacture, has good sealability, can realize the electrochemical test of the high-temperature high-pressure water system of metal materials under the temperature being between normal temperature and 350 DEG C, and the pressure being between normal pressure and 20MPa, and solves the problems of higher preparation process requirement and difficulty in realization of experimental facilities and the working electrode due to harsh environment of a high-temperature high-pressure water.

Description

technical field [0001] The invention relates to the field of electrochemical testing of high-temperature and high-pressure water systems, in particular to a working electrode for realizing electrochemical testing of high-temperature and high-pressure water systems. Background technique [0002] Nuclear power is a clean and efficient new energy. The development of nuclear power is an important way to solve the shortage of power supply in our country, improve the environmental quality, and ensure the sustainable growth of the national economy. my country's active nuclear power plants are mainly pressurized water reactors, and their key equipment, such as the main pipe of the primary circuit pressure vessel and the secondary water circuit steam generator, are used in high-temperature and high-pressure water (typical core outlet temperature is 326°C and pressure is 15.6MPa). The corrosion of materials during service poses a potential threat to the safe operation of nuclear power...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a working electrode for electrochemical testing of high-temperature and high-pressure water systems, which solves the problem in the prior art that due to the harsh environment of high-temperature and high-pressure water, the requirements for the preparation process of experimental equipment and working electrodes are relatively high, and it is very difficult to realize. Difficulties and other problems, to provide equipment basis for the realization of high temperature and high pressure water electrochemical test

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