An electrolytic cell device for simulating deep-sea environment electrochemical tests

Abstract

The invention provides an electrolytic bath apparatus used for simulating a deep-sea environment for electrochemical testing, belonging to the field of corrosion testing of metal materials. The electrolytic bath apparatus comprises an electrolytic bath main body which is prepared from at least three layers of different metal materials, i.e., an inner corrosion-resistant layer, an outer pressure-resistant layer and an electromagnetic wave shielding layer arranged between the inner corrosion-resistant layer and the outer pressure-resistant layer; three electrode subassembly installing holes, two air vents and one hydraulic pressurization hole are preset in the top cover of an electrolytic bath; and the hydraulic pressurization hole is connected with hydraulic pressurization equipment via a connection flexible pipe. The apparatus provided by the invention is based on the electrolytic bath main body for electrochemical measurement, can realize simulation of the deep-sea environment at the same time, and has the advantages of simple operation, low time consumption, economic performance, a large pressure control scope, fast pressurization speed, accurate temperature control, firm and durable structure, etc. Testing data acquired by using the electrolytic bath apparatus can truly reflect the corrosion-electrochemical performance of a metal material in a simulated deep-sea environment, and the electrolytic bath apparatus provides a more favorable corrosion measurement means for research on materials used in deep-sea environments.

Description

technical field [0001] The invention belongs to the field of metal material corrosion tests, and relates to a new corrosion test device for metal materials in a deep-sea pressure environment, in particular to an electrolytic cell device for simulating deep-sea environment electrochemical tests. Background technique [0002] The development and exploration of deep-sea resources, and the application of deep-sea engineering and equipment have become the focus of my country's development of marine economy. However, there is a big difference between the deep-sea environment and the shallow-sea environment, and deep-sea equipment will face serious corrosion hazards. Only by timely grasping the corrosion behavior of materials in the deep sea can correct materials be selected for deep-sea projects and equipment, thereby ensuring the safety of my country's marine economy and deep-sea equipment. Smooth development. Therefore, studying the corrosion behavior of materials in deep sea en...

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Problems solved by technology

The invention patents mentioned above can realize: electrochemical measurement is carried out in the process of carrying out the corrosion test in the simulated deep sea environment. The sealing operation is time-consuming and labor-intensive, and the current main method for studying the corrosion behavior of materials in deep-sea environments is electrochemical measurement. When the above equipment is used, the time required for each electrochemical test is taken up by only opening and removing the lid of the autoclave. most of the time

In addition, the autoclave is generally made of metal materials such as stainless steel, and the pressurization method requires a pump, which is noisy and even interferes with the data of electrochemical measurements. Therefore, it is necessary to develop an electrolytic cell device for simulating electrochemical measurements in deep sea environments , the device simulates the deep-sea environment by controlling the main deep-sea environmental factors. At the same time, the device is small in size, easy to operate, and low in noise. High test efficiency, accurate and reliable data

However, our company's previous invention patent CN201510942776.X "a micro-electrolysis test device for simulating deep-sea environment" can realize electrochemical testing of materials in a simulated deep-sea environment, with high efficiency and accurate data. However, the main body of the device is made of quartz Glass, the pressure range is only 0~10 MPa, the deep sea environment that can be simulated is limited, and the pressure resistance of quartz glass is poor, although the way to realize the pressure is simple to operate, but the pressure rises slowly

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