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Experimental device suitable for solid-phase oxygen control reaction

An experimental device and reaction technology, applied in various fluid ratio control directions, can solve problems such as increasing the difficulty of operation, and achieve the effect of simple overall structural design, good safety, and easy implementation and operation.

Active Publication Date: 2013-05-01
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Problems solved by technology

Their device does not use bellows. Inserting mass exchangers and oxygen sensors into the lead-bismuth requires melting the lead-bismuth at high temperature before covering the flange. It needs to be operated in an argon-protected environment, such as in a glove box. The difficulty of operation during the experiment

Method used

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  • Experimental device suitable for solid-phase oxygen control reaction
  • Experimental device suitable for solid-phase oxygen control reaction

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Embodiment Construction

[0016] Such as figure 1 As shown, the present invention includes an air inlet 1, a vacuum port 2, a thermocouple 3, a multi-point liquid level gauge 4, a mass exchanger 5, a second bellows 6, an oxygen meter 7, a first bellows 8, an outlet Air port 9, barometer 10, tank body 11. First, solid lead-bismuth is loaded into the tank body, and the loading amount is about 4 / 5 of the tank body capacity after melting (can be calculated by parameters such as mass and density); the first bellows 8 and the second bellows 6 After stretching to the maximum length, connect the lower end flange of the second bellows to the tank body 11 and seal it, then vacuumize the device through the vacuum port 2 for about 30 minutes, then close the vacuum port, and fill with 99.999% argon to 0.12MPa , vacuumize again, after repeating 3 times, heat the tank body 11 to melt the solid lead-bismuth; after the lead-bismuth melts, adjust the second bellows 6 downward, and stop adjusting the second bellows 6 af...

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Abstract

The invention relates to an experimental device suitable for solid-phase oxygen control reaction. The oxygen concentration of liquid lead bismuth is controlled by controlling intermittent immersion of a mass exchanger and the liquid lead bismuth. The device is cleverly designed to solve the problems of seal connection, difficulty in disassembly and the like, and the device is composed of a mass exchanger, a bellows, an oxygen meter, a thermocouple, a seal flange, an air inlet / outlet, a tank body and the like. According to the experimental device, the bellows is adopted to connect and seal, so as to lift the mass exchanger, the oxygen meter and a liquid level meter, and thus, measuring instruments such as the mass exchanger, the oxygen meter and the like do not need to be installed in a high-temperature lead bismuth melting state. Additionally, the bellows is used for lifting the mass exchanger, so that the mass exchanger can be intermittently immersed into the liquid lead bismuth, so as to control the oxygen concentration of the liquid lead bismuth in the tank body.

Description

technical field [0001] The invention relates to a pre-research device for the oxygen control technology in an accelerator-driven subcritical reactor (ADS), which provides a simple and easy research platform and technical reserves for the oxygen control technology of the ADS reactor in the future. Background technique [0002] Liquid lead bismuth alloy LBE (Lead bismuth eutectic) is the preferred material for hash targets in accelerator-driven subcritical systems (ADS) and an important candidate material for coolants in advanced fast reactors. Due to the special thermophysical and chemical properties of liquid lead-bismuth, such as low melting point (123.5°C), high boiling point (1670°C), high thermal conductivity, low vapor pressure and no violent reaction with air and water, liquid lead-bismuth is currently As a coolant for ADS spallation targets and advanced fast reactors, it has been extensively studied worldwide. [0003] However, its corrosiveness to steel has become t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D11/13
Inventor 吴斌张敏王艳青武欣黄群英
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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