Nuclear island equipment cooling water system material corrosion simulation device and using method thereof

Abstract

The invention discloses a nuclear island equipment cooling water system material corrosion simulation device and a using method thereof. The device comprises a circulating water tank, a circulating water outlet is formed in the bottom of the circulating water tank, and the circulating water outlet is connected with a carbon steel pipeline through a pipeline and circulating water flows back to thetop of the circulating water tank. A booster pump, a first hanging piece bypass flow regulating valve, a first hanging piece bypass rotor flow meter, a pipeline inner wall corrosion condition monitoring device, a first bypass corrosion hanging piece device and a carbon steel pipeline are sequentially arranged on the pipeline, and a hanging piece bypass water return valve is arranged on the carbonsteel pipeline. According to the invention, the operation condition of the equipment cooling water system can be simulated more truly, and water quality parameters can be accurately regulated and controlled. The method is used for researching water quality change rules and material corrosion mechanisms of the system in different operation stages.

Description

technical field [0001] The invention relates to the technical field of material corrosion protection research, in particular to a material corrosion simulation device for a cooling water system of nuclear island equipment and a method for using the same. Background technique [0002] The cooling water system of the nuclear island equipment of the nuclear power plant provides cooling water for various safety-related and non-safety-related systems of the nuclear island. This system provides an intermediate barrier that can be supervised between the equipment containing radioactive fluid and the final heat sink. necessary system. Once the various heat exchangers in the system are fouled or clogged, the heat exchange efficiency will be seriously reduced, and material corrosion may cause equipment leakage to damage the barrier and even cause shutdown. [0003] At present, there is a problem of excessive iron content in the equipment cooling water, which shows that the problem of...

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Problems solved by technology

When conducting research on water quality changes and material corrosion mechanisms, it is necessary to precisely control the water quality parameters of the circulating water, and adjust the parameters such as the conductivity of the circulating water, the content of impurity anions and cations, the amount of dissolved oxygen, and turbidity according to the research requirements; in addition, the system The water flow velocity on the surface of the medium material is in the range of 1-4m / s and the water flow patterns in different parts of the system are also different. The simulation equipment used in the experiment needs to simulate these parameters according to the on-site working conditions. In summary, the current market There is no laboratory simulator on the Internet that can meet the above conditions

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