Nuclear reactor oxygen control type liquid metal used under 200-300 DEG C and compatibility process thereof

A liquid metal and nuclear reactor technology, applied in the field of alloys, can solve the problems of liquid metal heat transfer materials such as corrosion and dissolution, and achieve the effects of ensuring the stability of physical and chemical properties, eliminating corrosion, and fast dissolution

Inactive Publication Date: 2019-09-27
深圳市兴荣晟物业管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it is regrettable that the corrosion and dissolution of liquid metal heat transfer materials in stainless steel pipes have not been well resolved.
From the perspective of material science, this patent proposes an oxygen-controlled liquid metal for nuclear reactors to solve the chemical compatibility problem of liquid metal in stainless steel pipes at high temperatures

Method used

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  • Nuclear reactor oxygen control type liquid metal used under 200-300 DEG C and compatibility process thereof
  • Nuclear reactor oxygen control type liquid metal used under 200-300 DEG C and compatibility process thereof

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Embodiment 1

[0019] A 200-300 degree nuclear reactor oxygen control type liquid metal and its compatibility technology. In terms of weight percentage, the alloy composition is Ag: 0.3wt.%, Sb: 3.2wt.%, Mn: 1.0wt.%, Bi: 12.5wt.%, Cd: 8.0wt.%, Ga: 2.0wt.% , Pb: 20.0wt.%, the balance is tin; the oxide composition to control the oxygen activity is PbO: 12.0wt.%, CuO: 2.5wt.%, Sn 2 o 3 : 1.8wt.%, AgO: 5.0wt.%, ZnO: 10.0wt.%, the balance is Fe 2 o 3 .

[0020]The aforementioned 200-300°C nuclear reactor oxygen-controlling liquid metal and its compatibility process include the following processing and use steps: (a) After the alloy is configured according to the required components, it is put into an induction furnace for melting, And use graphite crucible for smelting under the protection of argon; keep warm at 200 degrees for 10 minutes, use electromagnetic stirring to fully stir the alloy melt evenly, after cooling, remove the scum on the surface of the melted alloy melt and pour it into a...

Embodiment 2

[0023] A 200-300 degree nuclear reactor oxygen control type liquid metal and its compatibility technology. In terms of weight percentage, the alloy composition is Ag: 0.4wt.%, Sb: 4.0wt.%, Mn: 1.8wt.%, Bi: 14.0wt.%, Cd: 11.0wt.%, Ga: 2.5wt.%. , Pb: 26.0wt.%, the balance is tin; the oxide composition to control the oxygen activity is PbO: 12.0wt.%, CuO: 4.0wt.%, Sn 2 o 3 : 3.0wt.%, AgO: 6.5wt.%, ZnO: 15.0wt.%, the balance is Fe 2 o 3 .

[0024] The aforementioned 200-300°C nuclear reactor oxygen-controlling liquid metal and its compatibility process include the following processing and use steps: (a) After the alloy is configured according to the required components, it is put into an induction furnace for melting, A graphite crucible is used for smelting under the protection of argon; after 10 minutes of heat preservation at 300 degrees, the alloy melt is fully stirred evenly by electromagnetic stirring, and after cooling, the scum on the surface of the melted alloy melt i...

Embodiment 3

[0027] A 200-300 degree nuclear reactor oxygen control type liquid metal and its compatibility technology. In terms of weight percentage, the alloy composition is Ag: 0.2wt.%, Sb: 3.8wt.%, Mn: 1.4wt.%, Bi: 12.0wt.%, Cd: 10.0wt.%, Ga: 2.5wt.%. , Pb: 24.0wt.%, the balance is tin; the oxide composition to control the oxygen activity is PbO: 11.0wt.%, CuO: 4.0wt.%, Sn 2 o 3 :2.0wt.%, AgO:6.0wt.%, ZnO:14.0wt.%, the balance is Fe 2 o 3 .

[0028] The aforementioned 200-300°C nuclear reactor oxygen-controlling liquid metal and its compatibility process include the following processing and use steps: (a) After the alloy is configured according to the required components, it is put into an induction furnace for melting, And use graphite crucible for smelting under the protection of argon; keep warm at 200 degrees for 10 minutes, use electromagnetic stirring to fully stir the alloy melt evenly, after cooling, remove the scum on the surface of the melted alloy melt and pour it into a...

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Abstract

The invention discloses a nuclear reactor oxygen control type liquid metal used under 200-300 DEG C and a compatibility process of the nuclear reactor oxygen control type liquid metal used under 200-300 DEG C. The nuclear reactor oxygen control type liquid metal comprises, by weight percentage, 0.2-0.4 wt.% of Ag, 3.0-5.0 wt.% of Sb, 1.0-2.0 wt.% of Mn, 10.0-15.0 wt.% of Bi, 8.0-12.0 wt.% of Cd, 2.0-3.0 wt.% of Ga, 20.0-30.0 wt.% of Pb and the balance tin. The oxide composition for controlling the oxygen activity is composed of 10.0-12.0 wt.% of PbO, 2.0-5.0 wt.% of CuO, 1.0-4.0 wt.% of Sn2O3, 5.0-8.0 wt.% of AgO, 10.0-20.0 wt.% of ZnO and the balance Fe2O3. When the scheme is applied to liquid metal and pipeline design in the field of nuclear power, the equipment is simple, the construction cost is low, and the heat transfer performance is good; and under the working temperature of 200-300 DEG C, the structure (liquid metal plus oxygen control module plus stainless steel pipeline) can be used for 10 years without major overhaul.

Description

technical field [0001] The invention relates to the technical field of alloys, in particular to a tin alloy. Background technique [0002] With the rapid development of industrial technology, the demand for energy is getting stronger and stronger. However, my country's traditionally coal-based energy structure has brought serious air pollution. To fundamentally reduce air pollution in our country, we must reduce the proportion and share of coal burning in primary energy. It can be expected that green energy will occupy a higher proportion in the future, which will play an important role in fundamentally solving air pollution and mitigating future climate change. There are two types of nuclear energy: fission energy and fusion energy. At present, controllable fusion energy is in the research stage, and commercial nuclear energy projects are all based on fission. A country's national defense strength and national economic level can be measured from the use of nuclear energ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/04C22C13/00C23F15/00G21C15/28
CPCC22C13/00C22C30/04C23F15/00G21C15/28Y02E30/30
Inventor 王金辉
Owner 深圳市兴荣晟物业管理有限公司
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