A deep-sea corrosion test device that can measure and adjust the oxygen content of corrosive liquid
A test device, deep-sea corrosion technology, applied in the direction of material electrochemical variables, etc., can solve the problem of accurate measurement and control of dissolved oxygen without relevant patents and literature reports
Active Publication Date: 2015-09-09
ACADEMY OF ARMORED FORCES ENG PLA
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Problems solved by technology
Some domestic experimental equipment can basically control the pressure and temperature of corrosive liquids, but there are no relevant patents and literature reports on the precise measurement and control of dissolved oxygen
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[0020] A deep-sea corrosion test device capable of measuring and adjusting oxygen content, characterized in that: the device includes a feed tank 2, the feed tank is connected to the oxygen adjustment tank through a branch with an oxygen reduction tank 5, or an oxygen increase branch; an oxygen probe 6 Set in the oxygen adjustment tank, and feed back the measured oxygen content data to the central control cabinet; the central controller 15 connects the circulating pump to the feeding tank, and performs on-off control, so as to realize the closed-loop feedback adjustment of the oxygen content of the corrosive liquid ;
[0021] The oxygen tank is connected to the autoclave 14 through a booster pump, and the autoclave draws the current signals of the working electrode, the auxiliary electrode and the reference electrode from the lid of the autoclave through sealed wires, and connects to the electrochemical workstation 10 for electrochemical measurement; The cooling circulation de...
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The present invention discloses a deep sea corrosion test apparatus capable of measuring and adjusting corrosion liquid oxygen content. According to the apparatus, an oxygen probe is designed to accurately measure the corrosion liquid oxygen content before and after a corrosion reaction, and a flow meter is adopted to measure the reacting corrosion liquid volume, such that the corrosion liquid oxygen loss before and after the reaction can be calculated so as to characterize sensitivity of the material on the oxygen in the corrosion liquid; the structure design that the high-precision probe is arranged outside a high pressure kettle is adopted, such that the work can be performed at an atmospheric pressure, and the measurement accuracy is ensured; and a liquid storage tank is arranged on an oxygen adjustment tank, the corrosion liquid in the oxygen adjustment tank is filled into the high pressure kettle through a pressurization pump to carry out a reaction, the corrosion liquid after the reaction is discharged into the liquid storage tank to store after completing the first reaction, the remaining corrosion liquid in the oxygen adjustment tank is filled into the high pressure kettle to carry out a second reaction, then the liquid in the oxygen adjustment tank is evacuated, and the liquid in the liquid storage tank is discharged into the oxygen adjustment tank by using the height difference so as to achieve one liquid addition and double measurement.
Description
technical field [0001] The invention relates to a test device under deep-sea environmental conditions, which can mainly simulate the characteristics of pressure, temperature and oxygen content under different ocean depth conditions, and can also match the three parameters of pressure, temperature and oxygen content arbitrarily, thereby simulating the characteristics in the ocean. The actual working conditions in special environments (such as oxygen-poor and oxygen-rich areas in the ocean, etc.) belong to the field of corrosion material technology test equipment. Background technique [0002] With the continuous development of the economies of various countries in the 21st century, land resources have become increasingly tense. Therefore, human beings once again set their sights on the ocean for development. The ocean area accounts for 71% of the total area of the earth. Among them, the deep sea contains important new minerals such as oil and gas, polymetallic nodules, cob...
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IPC IPC(8): G01N27/26
Inventor 魏世丞徐滨士童辉刘毅田浩亮陈永雄刘玉欣
Owner ACADEMY OF ARMORED FORCES ENG PLA