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Double-cooling radiation test system and method

A technology of a test system and a cooling system, which is applied in a double-cooling irradiation test system and field, can solve the problems of high cost, different calorific value, and low utilization rate of the irradiation circuit

Inactive Publication Date: 2018-12-21
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is necessary to try to establish a special cooling circuit to cool the target. Different targets have different calorific values, and they are divided into solid targets, liquid targets and gas targets, which need to be cooled by different cooling circuits. The cost of establishing a target irradiation circuit alone is high. The utilization rate is low, so it is of great significance for isotope production to comprehensively consider the establishment of a circuit that is also suitable for radiation cooling of the target

Method used

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Embodiment 1

[0033] The double cooling radiation test system of this embodiment 1, combined with the attached figure 1 And attached figure 2 The present invention will be described.

[0034] The difference between the dual cooling radiation test system and the general serial secondary cooling radiation test system is as follows: figure 1 shown. The dual-cooling irradiation test system is composed of a high-temperature and high-pressure main cooling system and a low-temperature and low-pressure water jacket cooling system. Both subsystems are finally cooled by a secondary cooling system. According to different irradiation test / production requirements, the main cooling system and water jacket cooling system of the dual-cooling irradiation test system can be operated independently to achieve different thermal and hydraulic environments and cooling functions. The main cooling part and the water jacket cooling part of the dual-cooling radiation test system can run in parallel simultaneously...

Embodiment 2

[0039] Based on the above-mentioned dual-cooling irradiation test system, the following operating conditions can be realized:

[0040] Working condition 1: The main cooling system runs alone

[0041] The main cooling system is capable of providing fuel elements with a thermal-hydraulic and hydrochemical environment that simulates PWR conditions; it can take out the heat released from the fuel elements and transfer it to the secondary cooling water through the main regenerative heat exchanger, which can facilitate the adjustment of incoming and outgoing radiation The main coolant temperature, pressure, flow and liquid level of the device. The main cooling circuit is connected with the inlet and outlet of the pressure tube of the irradiation device to form a forced circulation high temperature and high pressure closed circuit. The main coolant is driven by one main pump, and the other is standby. After passing through the check valve at the outlet of the main pump, it flows to ...

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Abstract

The invention discloses a double-cooling radiation test system and method. The double-cooling radiation test system is formed by a main cooling system, a water sleeve cooling system, a secondary cooling system, and matched purification and water supplementary systems. The main cooling system is a high-temperature high-pressure circuit and can be operated independently; the water sleeve cooling system belongs to a low-temperature low-pressure circuit and can be operated independently; the main cooling system and the water sleeve cooling system can be operated in parallel at the same time. The main cooling system and the water sleeve cooling system carry out independent cooling cycle flowing, heat generated in a pressure pipe is carried out by main cooling water, and heat generated outside the pressure pipe is discharged out by water sleeve cooling water. Otherwise, the main cooling system is static or microflows, and heat inside and outside the pressure pipe is carried away through thecircular flow of the water sleeve cooling system. The double-cooling radiation test system and the method provided by the invention are applied to a nuclear material and fuel element in-pile steady-state irradiation test, a power transient test, a fuel damage test, an in-pile water chemical corrosion test, isotopic irradiation production and the like.

Description

technical field [0001] The invention relates to the field of nuclear material and fuel reactor tests, in particular to a dual-cooling irradiation test system and method, which can perform irradiation tests and production of nuclear materials, fuels, isotope targets, etc. in a variety of working conditions in the reactor The method is used in various occasions such as steady-state irradiation tests of nuclear materials and fuels, power transient tests, damaged components tests, water chemical corrosion tests in reactors, and isotope production. Background technique [0002] Nuclear materials and fuel reactor tests are one of the important scientific research tasks of research reactors. For example, when developing new nuclear fuel elements, a large number of steady-state irradiation tests, power jump tests, and in-reactor corrosion tests must be carried out. It is a very critical technology to build various loops on research reactors at home and abroad to evaluate their radia...

Claims

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Application Information

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IPC IPC(8): G21C17/10G21C17/00
CPCG21C17/00G21C17/10Y02E30/30
Inventor 李炳林汪海孙胜曹娜戴钰冰张亮斯俊平吴红伟
Owner NUCLEAR POWER INSTITUTE OF CHINA
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