Liquid metal for nuclear reactor 300-400-DEG C heat transfer and oxygen activity controlling technology thereof

A liquid metal and nuclear reactor technology, applied in the field of alloys, can solve the problems of corrosion and dissolution of liquid metal heat transfer materials that have not been well resolved, and achieve stability of physical and chemical properties, excellent heat transfer performance, and fast dissolution speed Effect

Inactive Publication Date: 2019-10-08
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 sci

Method used

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  • Liquid metal for nuclear reactor 300-400-DEG C heat transfer and oxygen activity controlling technology thereof
  • Liquid metal for nuclear reactor 300-400-DEG C heat transfer and oxygen activity controlling technology thereof

Examples

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Effect test

Embodiment 1

[0019] A liquid metal for 300-400 degree heat transfer of a nuclear reactor and a process for controlling oxygen activity thereof. In terms of weight percentage, the alloy composition is Cu: 0.4wt.%, Bi: 5.2wt.%, Zn: 4.0wt.%, In: 2.6wt.%, Cd: 12.0wt.%, Ga: 4.0wt.% , Pb: 30.0wt.%, the balance is tin; the oxide composition to control the oxygen activity is PbO: 21.0wt.%, AgO: 1.5wt.%, In 2 o 3 :1.0wt.%, Bi 2 o 3: 12.0wt.%, MgO: 15.0wt.%, the balance is Fe 2 o 3 .

[0020] The above-mentioned liquid metal for 300-400 degree heat transfer of nuclear reactors and its oxygen activity control process includes 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...

Embodiment 2

[0023] A liquid metal for 300-400 degree heat transfer of a nuclear reactor and a process for controlling oxygen activity thereof. In terms of weight percentage, the alloy composition is Cu: 0.7wt.%, Bi: 9.0wt.%, Zn: 6.0wt.%, In: 3.5wt.%, Cd: 18.0wt.%, Ga: 5.0wt.% , Pb: 36.0wt.%, the balance is tin; the oxide composition to control the oxygen activity is PbO: 24.0wt.%, AgO: 3.5wt.%, In 2 o 3 :2.8wt.%, Bi 2 o 3 : 13.0wt.%, MgO: 16.0wt.%, the balance is Fe 2 o 3 .

[0024] The above-mentioned liquid metal for 300-400 degree heat transfer of nuclear reactors and its oxygen activity control process includes 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, ...

Embodiment 3

[0027] A liquid metal for 300-400 degree heat transfer of a nuclear reactor and a process for controlling oxygen activity thereof. In terms of weight percentage, the alloy composition is Cu: 0.5wt.%, Bi: 6.0wt.%, Zn: 5.0wt.%, In: 2.5wt.%, Cd: 14.0wt.%, Ga: 4.8wt.% , Pb: 32.0wt.%, the balance is tin; the oxide composition to control the oxygen activity is PbO: 23.0wt.%, AgO: 2.5wt.%, In 2 o 3 :1.4wt.%, Bi 2 o 3 : 13.0wt.%, MgO: 14.0wt.%, the balance is Fe 2 o 3 .

[0028] The above-mentioned liquid metal for 300-400 degree heat transfer of nuclear reactors and its oxygen activity control process includes 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 280 degrees for 10 minutes, use electromagnetic stirring to fully stir the alloy melt evenly, after cooling, remove the scum on th...

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Abstract

The invention discloses liquid metal for nuclear reactor 300-400-DEG C heat transfer and an oxygen activity controlling technology thereof. An alloy comprises, by weight, 0.4 wt.%-0.8 wt.% of Cu, 5.0wt.%-10.0 wt.% of Bi, 4.0 wt.%-8.0 wt.% of Zn, 2.0 wt.%-4.0 wt.% of In, 10.0 wt.%-20.0 wt.% of Cd, 4.0 wt.%-6.0 wt.% of Ga, 30.0 wt.%-40.0 wt.% of Pb and the balance tin; and oxides for controlling the oxygen activity comprise 20.0 wt.%-25.0 wt.% of PbO, 1.0 wt.%-4.0 wt.% of AgO, 1.0 wt.%-3.0 wt.% of In2O3, 10.0 wt.%-15.0 wt.% of Bi2O3, 10.0 wt.%-20.0 wt.% of MgO and the balance Fe2O3. When the scheme is applied to liquid metal and pipeline design in the nuclear power field, equipment is simple, the construction cost is low, and the heat transfer performance is good. At the working temperatureof 300-400 DEG C, the structure (comprising the liquid metal, an oxygen control module and a stainless steel pipeline) can be used for 10 years and does not need to be overhauled or replaced.

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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IPC IPC(8): C22C30/02C22C30/04C22C30/06G21C15/28
CPCC22C30/02C22C30/04C22C30/06G21C15/28Y02E30/30
Inventor 王金辉
Owner 深圳市兴荣晟物业管理有限公司
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