Underground storage silo for storing nuclear power plant fuel storage tank

A technology for underground storage and fuel, applied in the field of dry storage of spent fuel in nuclear power plants, can solve problems such as exceeding the allowable value of regulations, occurrence of accident conditions, complicated production process, etc., to improve storage safety, avoid functional failure, and heat transfer. Efficient effect
CN105280255AActive Publication Date: 2016-01-27中广核工程有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
中广核工程有限公司
Publication Date
2016-01-27

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Abstract

The present invention discloses an underground storage silo for storing a nuclear power plant fuel storage tank, and aims to overcome or alleviate the shortcomings of being unsafe, large in land space, and the like of ground fuel storage tanks in the prior art, the underground storage silo comprises at least one underground shield chamber, a chamber sealing cover, a plurality of heat pipes and at least one protection grid net; the shielded underground chamber is disposed below ground, the shielded underground chamber is used for receiving the fuel storage tank; the chamber sealing cover is used for covering the top of the chamber to shield upward radiation; the plurality of heat pipes pass through the chamber chamber sealing cover and are inserted in the chamber, the plurality of heat pipes are arranged to surround the fuel storage tank, and are used for absorbing heat released by the fuel storage tank and releasing the heat into the external environment; the protection grid net is used for isolation protection of the heat pipe ground sections. The fuel storage tank is overall enclosed in the underground storage chamber, no flooding by water, overturning by earthquakes and other conditions occur, meanwhile silo function failure caused by flooding by water, overturning by earthquakes and other conditions can be avoided, and the storage safety of the fuel storage tank can be greatly improved.
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Description

technical field

[0001] The invention relates to the technical field of nuclear power plant spent fuel dry storage, in particular to an underground storage silo for storing nuclear power plant fuel storage tanks. Background technique

[0002] At present, the dry storage of spent fuel generally uses concrete vertical silos or concrete horizontal modules for storage. First, the spent fuel components are packaged and welded in a closed metal fuel storage tank, and then the fuel storage tank is loaded into the concrete vertical silo for storage. Store vertically, or load into concrete horizontal modules for horizontal storage.

[0003] The above storage methods are all ground storage, and at least there are the following deficiencies or defects:

[0004] 1) In order to effectively shield the gamma and neutron radiation of spent fuel assemblies, it is necessary to set a thicker shielding concrete shielding layer on the ground, and concrete vertical silos or concrete horizontal mo...

Claims

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