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Multifunctional spent fuel transportation rack of nuclear power plant and discharging and cooling method

A technology for unloading cooling and spent fuel, which is used in nuclear power generation, reactor fuel elements, nuclear engineering, etc., to achieve the effects of convenient disassembly, reduced equipment volume and cost, and simple assembly

Active Publication Date: 2013-04-03
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] At present, there is no similar equipment and related patents and documents in foreign countries

Method used

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  • Multifunctional spent fuel transportation rack of nuclear power plant and discharging and cooling method
  • Multifunctional spent fuel transportation rack of nuclear power plant and discharging and cooling method
  • Multifunctional spent fuel transportation rack of nuclear power plant and discharging and cooling method

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specific Embodiment approach

[0060] The bench body contains:

[0061] 1) Water filling branch 2: including the water filling joint of the bench, the first flow meter 14, the regulating ball valve 13, the first three-way device 12, the drain joint of the bench and its connecting pipelines, etc. The water filling joint of the bench is used to connect with the submersible pump 25; the first flow meter is used to measure the water filling flow; the adjusting ball valve can adjust the water filling flow; and switch between drainage branches.

[0062] 2) Exhaust branch 5: composed of the bench exhaust joint, the first liquid level switch 11, the second three-way device 7 and its connecting pipeline. The second three-way device is used to switch the airflow direction, so that the fluid can be switched between the inflation branch and the exhaust branch.

[0063] 3) Inflation branch 8: including bench inflation joint, air filter 26, pressure reducing valve 27, first pressure gauge 29, first solenoid valve 9, fi...

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PUM

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Abstract

The invention provides a multifunctional spent fuel transportation rack of a nuclear power plant. The multifunctional spent fuel transportation rack comprises a rack body, a discharging and cooling module and an electric control module, wherein the rack body comprises a rack water body branch, a rack gas branch and a gas-water separation and gas filter discharging branch; the discharging and cooling module comprises a cooling trolley, and a cooler, a cooling water branch and a gas branch loaded on the cooling trolley; and the electric control module is used for controlling various working states of the rack body and the discharging and cooling module. The invention further provides a discharging and cooling method. With the adoption of the multifunctional spent fuel transportation rack of the nuclear power plane provided by the invention, the functional requirements in a fuel transporting and discharging process can be met; module design and device multiplexing can be realized through the components; the simplicity of assembling and the convenience in dismounting can be realized; the equipment size and the manufacturing cost can be reduced; and no pollution gas or liquid is discharged to an external condition in an equipment operation process.

Description

technical field [0001] The invention relates to a multifunctional platform for transporting spent fuel of a nuclear power plant and a cooling method for unloading. Background technique [0002] In the pressurized water reactor nuclear power plant, after cooling the replaced spent fuel assembly in the storage pool for several years (the time is related to the burnup, the initial enrichment of uranium 235, etc.), it needs to be transported to the reprocessing plant in a special transport container to process. Only the Daya Bay Nuclear Power Plant in China has started the transportation of spent fuel, using the NAC-STC type transportation container approved by NRC. The NAC-STC transport container can hold 26 sets of AFA2G / AFA3G spent fuel assemblies. [0003] Nuclear power plant spent fuel transportation multi-functional platform is used to complete the loading and unloading operation of components in cooperation with the transportation container. According to the relevant pr...

Claims

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Application Information

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IPC IPC(8): G21C19/02G21C19/04
CPCY02E30/30
Inventor 瓮松峰韩同敬
Owner NUCLEAR POWER INSTITUTE OF CHINA
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