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

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...

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

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