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Independent temperature compensation type material radiation test device and its installation method

A technology of temperature compensation and irradiation, which is applied in the field of research reactor material irradiation, can solve the problems of reducing the loading amount of irradiation samples of the device, increasing the difficulty of assembling the irradiation device, occupying the irradiation space, etc., and achieving simple structure and good sealing performance , the effect of high irradiation temperature

Active Publication Date: 2017-11-03
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the modular sleeve-type irradiation test device with the stack adopts the method of installing electric heating elements to reduce the axial radiation temperature, but in actual engineering applications, the electric heating elements are It is easy to be damaged. At the same time, the introduction of electric heating elements will occupy a certain amount of irradiation space, reduce the load of irradiation samples in the device, and increase the difficulty of assembling the irradiation device.

Method used

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  • Independent temperature compensation type material radiation test device and its installation method
  • Independent temperature compensation type material radiation test device and its installation method
  • Independent temperature compensation type material radiation test device and its installation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 As shown, the independent temperature compensation type material irradiation testing device includes an irradiation tank 3 , an air inlet pipe 9 , and an air outlet pipe 10 . The irradiation tank 3 is used to load the irradiated sample 4 so that the irradiated sample 4 is in the active area of ​​the research reactor, and is the core component of the irradiation testing device. The irradiation tank 3 comprises an outer casing, an inner casing arranged in the outer casing, two partitions 24 arranged between the outer casing and the inner casing, an annular cavity is formed between the outer casing and the inner casing, and the two A partition 24 is located on the same diameter of the irradiation tank 3, and the annular cavity between the outer sleeve and the inner sleeve is divided into two semicircular sub-cavities; a semi-cylindrical material is arranged in each sub-cavity clamping device.

[0039] Each material clamping device is provided with a trac...

Embodiment 2

[0048] On the basis of Embodiment 1, in this embodiment, in order to better fix the material clamping device in the sub-cavity, the upper end of the material clamping device is also connected to the upper positioning block 6, and the lower end is also connected to the lower positioning block. block 2. The material clamping device clamps the sample and installs it in the sub-cavity, then the upper positioning block 6 fixes the material clamping device from the upper end, and the lower positioning block 2 fixes the material clamping device from the lower end. The material clamping devices of the two sub-cavities can be respectively fixed by the upper positioning block 6 and the lower positioning block 2 with different structures, or can be fixed by the upper positioning block 6 and the lower positioning block 2 with the same structure. In fact, the structure of the upper positioning block 6 and the lower positioning block 2 can be the same or different; The two sub-cavities are...

Embodiment 3

[0050] On the basis of Embodiment 1 or Embodiment 2, the independent temperature compensation type material radiation testing device in this embodiment further includes a fixing device. The fixing device is used to fix the irradiation test device in the irradiation tunnel, and connects with the external gas control system and temperature measurement and control system through the corresponding interface, and plays a connection and guiding role.

[0051] The irradiation tank 3 also includes a top flange 7 connected to the upper end of the irradiation tank 6, and a bottom flange 1 connected to the lower end of the irradiation tank 6, specifically: the bottom flange 1 is sealed and welded at the bottom of the irradiation tank 3 Between the inner cylinder and the outer cylinder of the irradiation tank 3, the top flange 7 is sealed and welded between the inner cylinder and the outer cylinder at the top of the irradiation tank 3, so that the upper and lower ends of the two subspaces ...

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Abstract

An independent temperature compensation type material irradiation testing device, including an irradiation tank, an inlet pipe, and an outlet pipe. The irradiation tank includes an outer casing, an inner casing arranged inside the outer casing, and two A partition, an annular cavity is formed between the outer casing and the inner casing, and the two partitions divide the annular cavity between the outer casing and the inner casing into two sub-cavities; a material clip is set in each sub-cavity Each material holding device is provided with an air pipe through hole; the number of air inlet pipes and air outlet pipes is at least two, and at least one air inlet pipe is installed in the air pipe through hole of each material holding device. The cavity communicates with at least one outlet pipe. The invention controls the temperature of the yin and yang sides of the irradiation tank separately, so that the temperatures of the yin and yang sides of the irradiation test section tend to be consistent, and is connected with the temperature measurement and control system through a thermocouple to monitor the irradiation test temperature in real time, with the advantages of The temperature control is sensitive and independent, and the irradiation temperature is uniform.

Description

technical field [0001] The invention relates to the technical field of research reactor material irradiation, in particular to an independent temperature-compensated material irradiation testing device and an installation method thereof. Background technique [0002] Reactor materials must undergo an in-reactor irradiation test before they are formally used to verify whether their radiation resistance performance meets the requirements for use. The in-reactor irradiation test of materials must be carried out under certain technical conditions, and one of the important indicators is The irradiation temperature of the irradiated sample. At present, the material irradiation testing device on my country's high-flux reactor (referred to as HFETR) can carry out relevant material irradiation testing, but the structural design of the existing irradiation testing device can only achieve a maximum material irradiation temperature of about 400 °C. Due to the structural characteristics...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C17/06
CPCG21C17/06Y02E30/30
Inventor 聂良兵杨文华童明炎徐斌刘洋
Owner NUCLEAR POWER INSTITUTE OF CHINA
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