Method for the manufacture of plutonium-containing nuclear fuel rods专利检索-核燃料棒核能专利检索查询-专利查询网

Method for the manufacture of plutonium-containing nuclear fuel rods

阅读：48发布：2022-01-24

专利汇可以提供Method for the manufacture of plutonium-containing nuclear fuel rods专利检索，专利查询，专利分析的服务。并且Nuclear fuel rods are manufactured by coating the inner wall of the tubular casing of the fuel rod with a layer of plutoniumcontaining matrix so that the plutonium is disposed only in the cylindrical outer zone of the uranium-containing nuclear fuel charge. This is done by preparing a suspension of plutoniumcontaining particles in a lacquer which can be decomposed into carbon by a heat treatment, passing the suspension through the tubular casing and heating the dried coating of the suspension in a protective inert atmosphere until the lacquer is cabonized.，下面是Method for the manufacture of plutonium-containing nuclear fuel rods专利的具体信息内容。

权利要求

2. Method according to claim 1 wherein the plutonium content of said matrix is greater than 50 percent by weight.

3. Method according to claim 1 wherein the plutonium and uranium used are in oxide compound form.

4. Method according to claim 1 wherein the coating of a layer of plutonium-containing matrix is applied in a thickness in the range of 10 Mu to 100 Mu .

5. Method according to claim 1 wherein the step of coating the inner wall of the tubular casing with a layer of a plutonium-containing matrix, comprises: a. preparing a suspension of plutonium-containing particles in a lacquer which can be decomposed into carbon by a heat treatment; b. passing said suspension through the tubular casing; c. allowing a film of said suspension to coat the inner wall of the tubular casing; d. allowing the excess suspension to drip off the inner wall of the tubular casing; e. allowing the coating of said suspension on the inner wall of the tubular casing to dry; and f. heating the dried coating of said suspension in a protective inert atmosphere until the lacuqer is carbonized.

6. Method according to claim 5 wherein the step of preparing a suspension oF plutonium-containing particles ina lacquer, comprises regulating the concentration of the plutonium-containing particles in the suspension so that in the carbonized lacquer coating on the inner wall of the tubular casing the ratio of the amount of carbon to plutonium is in the range of 1:5 to 1: 20.

7. Method according to claim 5 wherein the step of preparing a suspension of plutonium-containing particles comprises using plutonium-containing particles having a diameter of less than 10 Mu .

8. Method according to claim 5 wherein the step of preparing a suspension of plutonium-containing particles comprises using plutonium-containing particles having a diameter of less than 1 Mu .

9. Method according to claim 5 wherein the step of preparing a suspension of plutonium-containing particles comprises regulating the viscosity of the suspension so that the thickness of the layer on the inner wall of the tubular casing is in the range of 10 Mu to 100 Mu .

10. Method according to claim 1 wherein the step of closing off the tubular casing at each end comprises: a. joining a first end cap to one of the ends of the tubular casing after coating the inner wall of the tubular casing with a layer of plutonium-containing matrix and before placing the uranium-containing nuclear fuel charge in the tubular casing; and b. joining a second end cap on the opposite end of the tubular casing from said first end cap to close off the tubular casing after placing the uranium-containing nuclear fuel charge in the tubular casing.

11. Method according to claim 1 and further comprising the additional step of providing a space on the inner wall of the tubular casing at each end of the fuel rod between the layer of plutonium-containing matrix and the end capS.

12. Method according to claim 11 wherein said sapce provided at each end of the fuel rod is achieved by covering the zones on the inner wall of the tubular casing at each end of the fuel rod prior to applying the layer of plutonium-containing matrix.

说明书全文

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Method for the manufacture of plutonium-containing nuclear fuel rods

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