Fuel rod and fuel assembly
A technology of fuel assemblies and fuel rods, which is applied in the field of nuclear power, can solve the problems of poor fuel economy of fuel rods, achieve the effects of reducing enrichment types, improving fuel economy, and reducing enrichment gaps
Inactive Publication Date: 2019-04-05
HUALONG PRESSURIZED WATER REACTOR TECH CORP LTD
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Problems solved by technology
[0003] The purpose of the embodiments of the present invention is to provide a fuel rod and a fuel assembly, which solves the problem of poor fuel economy of the fuel rod due to the large difference in the degree of enrichment in the fuel rod
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[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0024] Such as figure 1 As shown, the embodiment of the present invention provides a fuel rod 1, comprising: a first uranium pellet 101, a gadolinium pellet 102 and a second uranium pellet 103, the first uranium pellet 101, the gadolinium pellet 102 The outer shape of the second uranium pellet 103 is cylindrical, the end face of one end of the gadolinium pellet 102 is connected with the end face of one end of the first uranium pellet 101, and the oppos...
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The invention provides a fuel rod and a fuel assembly. The fuel rod comprises a first uranium pellet, a gadolinium pellet and a second uranium pellet, and the first uranium pellet, the gadolinium pellet and the second uranium pellet are all cylindrical in appearance. The end face of one end of the gadolinium pellet is connected with the end face of one end of the first uranium pellet, and the endface of the other end of the gadolinium pellet is connected with the end face of one end of the second uranium pellet. A difference value of degrees of enrichment of the gadolinium pellet and the first uranium pellet is smaller than or equal to 0.5%, and a difference value of degrees of enrichment of the gadolinium pellet and the second uranium pellet is smaller than or equal to 0.5%. By an embodiment, a gap between degrees of enrichment can be narrowed, types of degrees of enrichment are reduced, and accordingly fuel economy is improved.
Description
technical field [0001] The invention relates to the technical field of nuclear power, in particular to a fuel rod and a fuel assembly. Background technique [0002] With the continuous development of society, people's life demand for electricity is increasing. With the continuous advancement of science and technology, nuclear power generation has become an important way of power generation. Nuclear power generation has the advantages of little pollution and abundant resources. In the prior art, in a nuclear power plant, electricity is usually generated through a nuclear reaction of fuel rods. However, the fuel economy of the fuel rod is poor due to the large difference in the degree of enrichment in the fuel rod. Contents of the invention [0003] The purpose of the embodiments of the present invention is to provide a fuel rod and a fuel assembly, which solves the problem of poor fuel economy of the fuel rod due to large differences in enrichment degrees in the fuel rod...
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IPC IPC(8): G21C3/02G21C3/07G21C3/38
CPCG21C3/02G21C3/07G21C3/38Y02E30/30G21C3/16G21C3/326G21C5/02G21C3/045G21C3/40G21C3/60
Inventor 马兹容赵常有奚坤
Owner HUALONG PRESSURIZED WATER REACTOR TECH CORP LTD