High-thermal-conductivity isothermal body temperature control irradiation device

An irradiation device and high thermal conductivity technology, which is applied in the field of nuclear power materials, can solve the problems of limited irradiation space, low use cost, and low thermal conductivity, and achieve the effects of uniform temperature distribution, increased temperature, and simple structure

CN112393967APending Publication Date: 2021-02-23INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-02-23

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Abstract

The invention discloses a high-conductivity isothermal body temperature control irradiation device. The device comprises an irradiation capsule, a cushion block, an isothermal body and an inert gas layer. The irradiation capsule is an outer protective shell of the irradiation device and provides support for each component and a to-be-irradiated sample; the isothermal body provides temperature compensation for the to-be-measured sample by utilizing the nuclear irradiation heating characteristic of the isothermal body, so that the to-be-measured sample is in a uniform and stable temperature environment; the inert gas layer is arranged in a gap between the inner surface of the irradiation capsule shell and the outer surface of the isothermal body so as to perform heat preservation; the cushion block is arranged between the contact surfaces of the isothermal body and the irradiation capsule so as to perform heat insulation. The irradiation device disclosed by the invention provides a uniform and stable irradiation temperature environment for irradiation examination of a nuclear power material, is simple and reliable in structure and low in cost, and provides support for a reliable nuclear power material irradiation test.
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Description

technical field

[0001] The invention belongs to the field of nuclear power materials, in particular to a high-conductivity isothermal body temperature control irradiation device. Background technique

[0002] Energy is the cornerstone of social and economic development. Vigorously developing clean energy is of great significance to the harmonious development of man and nature. Nuclear energy is clean, safe and efficient, and has become an important direction for countries to develop clean energy. Nuclear power materials are the key factors supporting the development of nuclear power plants such as large-scale advanced pressurized water reactors and high-temperature gas-cooled reactors. However, nuclear power materials are also one of the bottlenecks currently restricting the development of nuclear power technology. With the deepening of my country's nuclear power autonomy, it is urgent to study the impact of nuclear radiation on nuclear power materials.

[0003] The radiati...

Examples

Embodiment 1

[0030] In this embodiment, the samples to be irradiated are two 1 / 4 arc thin zirconium alloy claddings and two zirconium alloy plates respectively, and the irradiation temperature required for the test is 350°C. The thickness of the side wall of the irradiation capsule is 1.5mm, the thickness of the bottom of the irradiation capsule is 5mm, the thickness of the top cover is 10mm, the inner diameter of the irradiation capsule is 36mm, and the outer diameter is 39mm. The capsule is made of nuclear grade 6061 aluminum material. A pure copper circular isothermal body with an outer diameter of 33.4 mm and an inner diameter of 21 mm is placed inside the irradiation capsule. By adjusting the inner and outer diameters of the isothermal body, the calorific value of the pure copper isothermal body is adjusted to make the sample reach the target irradiation temperature. The lower end of the pure copper ring-shaped isothermal body is cushioned with a zirconia ceramic material block with a...