High temperature and high pressure supercritical carbon dioxide uniform corrosion testing system

Abstract

The invention discloses a high temperature and high pressure supercritical carbon dioxide uniform corrosion testing system. The high temperature and high pressure supercritical carbon dioxide uniform corrosion testing system comprises a carbon dioxide source, a preheating device, a reaction device, a condensing device and an exhaust device, which are communicated in sequence, wherein the condensing device is communicated with a circulation cooling system, a sampling analysis system is arranged between the condensing device and the exhaust device, and the sampling analysis system is communicated with a pipeline between the condensing device and the exhaust device. The system can accurately control main test parameters such as temperature, pressure and flow in the testing system to perform a material corrosion test under high temperature and high pressure supercritical carbon dioxide conditions and to accurately analyze the composition and content of carbon dioxide impurities after reaction. The high temperature and high pressure supercritical carbon dioxide uniform corrosion testing system is simple in structure and convenient to operate, and can better meet test requirements, thereby playing an important significance in developing a research on the corrosion rule and mechanism of a corrosion resistant material under the high temperature and high pressure supercritical carbon dioxide conditions, and improving the service safety, reliability and economy of key equipment of a national supercritical carbon dioxide power conversion system.

Description

technical field [0001] The invention relates to corrosion test technology for corrosion-resistant materials, in particular to a high-temperature and high-pressure supercritical carbon dioxide uniform corrosion test system. Background technique [0002] At this stage, my country is actively promoting the structural reform of the energy supply side, building a clean, economical and safe energy supply system, and gradually replacing fossil energy with high pollution and high emissions. At the same time, nuclear energy is gradually becoming an important choice to replace fossil energy due to its advantages of stability, economy, and high efficiency, and has become one of the three pillars of world energy. At present, the nuclear power plants in service mainly adopt the second-generation and second-generation improved pressurized water reactor technology. As the third-generation nuclear power plants enter the construction and use stage, the research work of the fourth-generation ...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is that parameters such as pressure, flow rate and temperature cannot be precisely controlled during the high-temperature, high-pressure supercritical carbon dioxide uniform corrosion test process, and its purpose is to provide a high-temperature, high-pressure supercritical carbon dioxide uniform corrosion test system. The uniform corrosion test is carried out on the sample under the condition of high temperature and high pressure supercritical carbon dioxide, and at the same time, the pressure, flow rate, temperature and other parameters are precisely controlled during the test to improve the accuracy and reliability of the uniform corrosion test results of the test sample in the supercritical carbon dioxide environment

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