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Oxygen control device used for liquid lead or liquid lead-bismuth alloy loop system and method thereof

A liquid lead-bismuth alloy and loop system technology, which is applied in the direction of various fluid ratio control, etc., can solve problems such as constraints and structural steel corrosion, and achieve the effect of flexible operation scheme, easy processing and assembly

Inactive Publication Date: 2016-07-06
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the corrosion of liquid lead or lead-bismuth alloy to structural steel has become an important factor restricting its wide application.

Method used

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  • Oxygen control device used for liquid lead or liquid lead-bismuth alloy loop system and method thereof
  • Oxygen control device used for liquid lead or liquid lead-bismuth alloy loop system and method thereof
  • Oxygen control device used for liquid lead or liquid lead-bismuth alloy loop system and method thereof

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Experimental program
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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] 1 Design of oxygen control device

[0035] The oxygen control device is designed as a bypass system, so that when the liquid lead or liquid lead-bismuth alloy loop system is running, the mass exchanger 1 can be installed and removed without stopping the loop system; When liquid lead or liquid lead-bismuth alloy is used, the oxygen control device is enabled by opening the first electric valve 7 and the second electric valve 26; control device isolation.

[0036] The installation position of the bypass system is parallel to the driving pump 2, and the liquid lead or liquid lead-bismuth alloy enters the bypass system from the downstream of the driving pump 2, and returns to the loop system from the upstream of the driving pump 2.

[0037]The oxygen control device includes: a driving pump 2, two oxygen sensor interfaces, two electric valves, a mass...

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Abstract

The invention discloses an oxygen control device used for a liquid lead or liquid lead-bismuth alloy loop system and a method thereof, and belongs to the technical field of nuclear engineering and nuclear. The oxygen control device comprises a driving pump, two oxygen sensor interfaces, two electric valves, a mass exchanger, a spiral cooling water pipe, a first flange, a heat exchanger, a heater and a pipeline. The two oxygen sensor interfaces are a first oxygen sensor interface and a second oxygen sensor interface respectively. The two electric valves are a first electric valve and a second electric valve respectively. The oxygen control device adjusts temperature of liquid lead or liquid lead-bismuth alloy through the cooling device and the heating device and controls dissolution and precipitation of solid lead oxide in liquid lead or liquid lead-bismuth alloy so as to adjust oxygen concentration in liquid lead or liquid lead-bismuth alloy. The oxygen control device has the characteristics of being efficient, rapid and clean, and has the characteristics that the operation scheme is flexible and processing and assembling are easy in comparison with the conventional solid oxygen concentration control method.

Description

technical field [0001] The invention belongs to the field of nuclear engineering and nuclear technology, in particular to an oxygen control device and method for liquid lead or liquid lead-bismuth alloy circuit system. Background technique [0002] Liquid lead or lead-bismuth alloys are the materials of choice for primary high-energy hash targets in accelerator-driven subcritical systems (ADS) and important candidates for coolants in lead-based reactors. However, the corrosiveness of liquid lead or lead-bismuth alloy to structural steel has become an important factor restricting its wide application. At present, oxygen concentration control technology is generally considered to be the most effective anti-corrosion method for liquid lead-bismuth alloys. Existing experiments in the world almost all adjust the oxygen content in the liquid lead-bismuth alloy by injecting low-concentration oxygen or hydrogen into the liquid metal or the gas covered on its surface, but there are ...

Claims

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Application Information

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IPC IPC(8): G05D11/13
CPCG05D11/13
Inventor 牛风雷赵云淦杜晓超吴斌高胜吴宜灿
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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