Device and method for controlling oxygen content in liquid lead bismuth alloy

A liquid lead-bismuth alloy, control device technology, applied in various fluid ratio control and other directions, to achieve the effect of reducing residue and preventing oxidation

Active Publication Date: 2014-07-09
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the oxygen content control device in the liquid lead-bismuth alloy is mainly based on a static method, that is, the liquid lead-bismuth is static in the container, which is somewhat different from the actual requirements of ADS

Method used

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  • Device and method for controlling oxygen content in liquid lead bismuth alloy
  • Device and method for controlling oxygen content in liquid lead bismuth alloy
  • Device and method for controlling oxygen content in liquid lead bismuth alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Example 1: see figure 1 , figure 2 , image 3 , Figure 4 , an oxygen content control device in a liquid lead-bismuth alloy, including a heating chamber 2 before the liquid inlet end of the oxygen content control chamber 4, the heating chamber is connected to a liquid metal mechanical pump 6 through the oxygen content control chamber 4, and the oxygen content The liquid inlet end of the control room 4 is provided with a liquid inlet oxygen probe 3, and a liquid outlet oxygen probe 5 is provided at the liquid outlet; the liquid metal flowmeter 7 is arranged at the outlet end of the liquid metal mechanical pump 6, and the liquid metal flowmeter 7 The outlet of the valve is connected to the liquid lead-bismuth alloy valve 9, and the return port of the liquid lead-bismuth alloy valve 9 communicates with the storage tank 1 through the return pipeline 10 and communicates with the heating chamber 2; Content control room4.

[0046] The storage tank 1 is provided with a sto...

Embodiment 2

[0053] Embodiment 2: A device for controlling the oxygen content in a liquid lead-bismuth alloy, which also includes an outlet end of the liquid metal flowmeter 7 connected to a corrosion chamber 18 through an inflow valve 16, and the corrosion chamber 18 is connected to a return pipeline through a return valve 17 10. All the other structures are the same as in Example 1.

Embodiment 3

[0054] Embodiment 3: A device for controlling the oxygen content in a liquid lead-bismuth alloy, which also includes an ADS system 21 with a liquid lead-bismuth alloy as a spallation target and a coolant at both ends of the liquid lead-bismuth alloy valve 9 , the inlet of the ADS system 21 using liquid lead-bismuth alloy as the spallation target and coolant is connected to the inlet port of the liquid lead-bismuth alloy valve 9 through the inlet valve 19, and its outlet is connected to the outlet port of the liquid lead-bismuth alloy valve 9 through the outlet valve 20 . All the other structures are the same as in Example 1.

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Abstract

The invention belongs to the technical field of nuclear science and engineering, and relates to a device and method for controlling the oxygen content in liquid lead bismuth alloy. The device for controlling the oxygen content in the liquid lead bismuth alloy is mainly characterized in that a heating cavity is formed in front of the liquid inlet end of an oxygen content control chamber, the heating cavity is connected with a liquid metal mechanical pump through the oxygen content control chamber, a liquid inlet end oxygen probe is arranged at the liquid inlet end of the oxygen content control chamber, and a liquid outlet end oxygen probe is arranged at the liquid outlet end of the oxygen content control chamber; a liquid metal flow meter is arranged at the outlet end of the liquid metal mechanical pump, an outlet of the liquid metal flow meter is connected with a liquid lead bismuth alloy valve, and a reflux inlet of the liquid lead bismuth alloy valve is communicated with a liquid storage tank through a reflux pipeline and is communicated with the heating cavity; vacuum pumping and measuring systems are arranged in the liquid storage tank and the oxygen content control chamber. The device and method have the advantages that Ar-H2 mixed gas and reactive oxygen in the liquid lead bismuth alloy conduct chemical reaction in the oxygen content control chamber, and then the oxygen content can be controlled.

Description

technical field [0001] The invention belongs to the technical field of nuclear science and engineering, and relates to a device and method for controlling oxygen content in liquid lead-bismuth alloy. Background technique [0002] The accelerator-driven subcritical clean nuclear energy system (ADS) uses the high-energy protons provided by the accelerator to undergo spallation reactions with spallation targets (such as lead and bismuth) to generate neutrons as a neutron source to drive the subcritical cladding system, making the subcritical cladding system The layer system maintains a chain reaction to gain energy and use excess neutrons to multiply nuclear material and transmutate nuclear waste. ADS can transmute long-lived nuclear waste into short-lived nuclear waste to reduce the storage and toxicity of radioactive waste. However, ADS itself produces very little nuclear waste. It is recognized by the scientific community as a way to solve a large amount of radioactive waste...

Claims

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Application Information

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IPC IPC(8): G05D11/13
Inventor 常海龙王志光姚存峰孙建荣盛彦斌张宏鹏徐瑚珊
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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