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A test device and test method for anti-corrosion performance

A test method and test device technology, which are applied in measurement devices, weather resistance/light resistance/corrosion resistance, instruments, etc., can solve the problems of lack of molten salt freezing wall protection effect, etc., to prevent environmental pollution and damage to operators, Ensures testing, avoids the effect of high temperature operation

Active Publication Date: 2021-06-04
上海联和日环能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem that the present invention aims to solve is to overcome the defect in the prior art that there is no safe, effective, and easy-to-operate method for evaluating the protective effect of the molten salt freezing wall on the metal wall, and provides a test device for anti-corrosion performance and test methods

Method used

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  • A test device and test method for anti-corrosion performance
  • A test device and test method for anti-corrosion performance
  • A test device and test method for anti-corrosion performance

Examples

Experimental program
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Effect test

Embodiment 1

[0070] Such as Figure 1 ~ 7 As shown, the present embodiment provides a test device including a heating tank 1, a cooling rod 2, a four-way connecting head 105, a telescopic bellows 104, a bottom ventilator 5, a thermocouple A bundle 4, a sample holder 3 and a first sample fixing ring 205, the heater 1 comprising an kettle body 101 and a clavocker 103, and an inner surface of the kettle body 101 also has a heater. 102. The cooling rod 2 is perpendicular to the center of the lane 103 and rejuble into the kettle body 101, which divides the cooling rod 2 into an upper and lower segments, said The top of the cooling rod 2 is also provided with a cooling rod rising drop 7 for overall up and lower the cooling rod 2 and its respective members; there is an air outlet 106 on the lace 103. And an kettle lift 6, the capping lifter 6 is used to perform overall up and down of the glue cover 103 and their respective members.

[0071] The four-way connecting head 105 has four channels, the upper...

Embodiment 2

[0082] In this example, a specific embodiment of the anti-corrosion performance test is performed using the test apparatus of Example 1. The molten salt used is a FLINAK melt salt, and the test method includes the following steps:

[0083] S1, open the kettle lifter 6 up to the upper lid 103, and 4 kg 46.5-11.5-42 mol% LIF-NAF-KF solid salt (melting point 454 ° C) is loaded into the heater 1;

[0084] S2, mount the telescopic bellows 104, the four-way connecting head 105, and the cooling rod 2 are mounted on the kettle cover 103, and the cooling rod rises 7 rises to the highest bit, the sample bracket 3 and test samples are installed, and the test sample material is SS316L. Stainless steel, adjust the temperature of the thermocouple to each sample surface;

[0085] S3, the lava lifter 6 is lowered and the kettle body 101 is mounted, and the heater 102 is opened to 550 ° C and heat the solid salt, and the liquid height is about 100 mm;

[0086] S4, the cooling rod floor down reduce...

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Abstract

The invention discloses a test device and a test method for anti-corrosion performance. The test device includes a heating kettle, a cooling rod, a four-way connector, a telescopic bellows, a bottoming vent pipe, a thermocouple bundle, a sample support and a first sample The fixed ring, the heating kettle includes the kettle body and the kettle cover, the cooling rod vertically penetrates the center of the kettle cover and extends into the kettle body, the top of the cooling rod is also equipped with a cooling rod lifter, and the kettle cover is also equipped with an air outlet and a kettle cover lifter , the upper part of the cooling rod is installed in the upper and lower channels of the four-way connector, and the four-way connector is connected to the kettle cover through a telescopic bellows; The beam extends into the kettle body from the right channel; the sample holder and the first sample fixing ring are sequentially passed through the lower section of the cooling rod from the bottom of the cooling rod, and the sample holder includes the second sample fixing ring, which is set on the cooling rod and extends out Two centrally symmetrical horizontal arms are connected to a vertical arm at the end, and a circular sample stage is arranged at the end of the vertical arm.

Description

Technical field [0001] The present invention relates to a test apparatus and a test method of corrosion resistance. Background technique [0002] In chemical, metallurgy, nuclear industry, etc., some high temperature chemical processes have caused strong thermal corrosion and chemical corrosion due to the corrosion of liquid material media, which will affect the long-term safe operation of the reaction vessel, so that some The development of the process process is facing great challenges and difficulties. For example, dry method after dry treatment techniques, the separation process of irradiation nuclear fuel in high temperature and anhydrous state, due to the corrosion of high temperature fluoride molten salt media, bringing challenges for long-term stability operation of process equipment, especially In the fluorinated volatile process based on gas-liquid reactions, it utilizes UF in fluorine gas and lack of fuel salts. 4 Reaction to generate easy volatile UF 6 Implementing u-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N17/00
CPCG01N17/00
Inventor 周金豪孙波窦强李晴暖吴国忠
Owner 上海联和日环能源科技有限公司
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