Application method of oxygen content-controlled high-flow velocity multi-state aqueous corrosion experiment apparatus

Abstract

The invention belongs to the technical field of a corrosion experiment apparatus, and discloses an application of an oxygen content-controlled high-flow velocity multi-state aqueous corrosion experiment apparatus. According to the invention, water used for experiment in a water storage tank is driven by a high-pressure pump and is operated in a whole pipeline, after electric induction heating, water is introduced into a sample chamber, and an experiment sample in the sample chamber can be corroded; after cooling by a condenser, and the material is introduced into the water storage tank througha filter for a circulation. The oxygen content-controlled high-flow velocity multi-state aqueous corrosion experiment apparatus can simulate different media environments under a plurality of experiment parameters, and provides different temperatures (less than 700 DEG C), pressure (less than 30 MPa), flow velocity (less than 3m / s), supercritical water (less than 10m / s), and superheated water vapour (less than 40 m / s); can simulate service environment of a light-water reactor nuclear power station, service environment of a supercritical water reactor and supercritical thermal power, and superheated steam environment in thermal power, and reduces N2 consumption; and can heat rapidly flowed medium.

Description

technical field [0001] The invention belongs to the technical field of corrosion experimental devices, and in particular relates to a method for using a high-flow rate multi-state water corrosion experimental device for controlling oxygen content. Background technique [0002] Materials face serious corrosion problems in the environment of high temperature and high pressure water, represented by the corrosion of high temperature and high pressure water, supercritical water and superheated steam (280℃~600℃, 8~30MPa) in the field of nuclear power and thermal power. Steam circulation components such as superheaters, reheaters, high-temperature steam pipes, turbine rotors, blades, and nozzles in thermal power plants are corroded by high-temperature and high-pressure steam; pressure components in nuclear power plants such as pressure vessels, steam generators, return pipelines, and heat exchangers Corrosion by high temperature and high pressure water; and related components in su...

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Problems solved by technology

[0003] In summary, the existing problems in the prior art are: the current laboratory simulation corrosion device has a low fluid velocity; it cannot simulate the real working environment flow velocity; this is because the faster the fluid velocity, the shorter the heat transfer time, and the The more difficult the heating, the greater the power consumption required; the conventional heating method is more difficult to heat the fast fluid; so it is necessary to choose an effective and fast heating method

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