Nuclear power plant spent fuel storage tank

A spent fuel and nuclear power plant technology, applied in the field of nuclear power, can solve the problems of difficult underwater installation and positioning of the cover plate of the horizontal spent fuel storage tank, complex cutting and retrieval operations of the horizontal spent fuel storage tank, and increased radiation dose levels, etc. Achieve the effect of avoiding the problem of equipment jamming and damage, avoiding the difficulty of positioning, simplifying the difficulty of processing, manufacturing and installation
CN109599198BActive Publication Date: 2020-09-25CHINA NUCLEAR POWER DESIGN COMPANY +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA NUCLEAR POWER DESIGN COMPANY
Publication Date
2020-09-25

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Abstract

The invention discloses a spent fuel storage tank for a nuclear power plant. The spent fuel storage tank comprises a cylinder, a top cap which is fixedly connected with the top of the cylinder and isprovided with a first draining hole and a first inflating hole in a running through manner, a shielding cover plate which is arranged inside the cylinder and is arranged corresponding to the top cap,a bottom plate which is fixed at the bottom of the cylinder, a fuel grid which is arranged in the cylinder and put on the bottom plate, and a heat-conductive metal block which is arranged between theinner wall of the cylinder and the fuel grid, wherein a second draining hole runs through the shielding cover plate, and is arranged corresponding to the position of the first draining hole, a secondinflating hole is formed corresponding to the first inflating hole in a running through manner; draining components are inserted in the first and second draining holes in an embedded manner; inflatingcomponents are inserted in the first and second inflating holes in an embedded manner; and the draining components and the inflating components are fixed on the inner surface of the cylinder. Compared with the prior art, the spent fuel storage tank has the advantages that the cover plate is convenient in assembly positioning, solder sealing and cut retrieving operations and is simple in processing manufacture, and horizontal storage and vertical storage are available.
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Description

Technical field

[0001] The invention belongs to the field of nuclear power. More specifically, the invention relates to a spent fuel storage tank for a nuclear power plant. Background technique

[0002] The spent fuel storage tank is a device for loading and storing spent fuel, which can meet the long-term storage of spent fuel components in nuclear power plants.

[0003] The spent fuel storage tanks of nuclear power plants in the prior art are mainly horizontal concrete storage tanks. Although the spent fuel assembly loading function can be realized, the convenience and safety of equipment operation and operation (radiation protection), as well as equipment manufacturing and equipment There are still some problems in storage, mainly reflected in:

[0004] (1) Difficulty in underwater installation and positioning of horizontal spent fuel storage tank cover

[0005] The existing horizontal spent fuel storage tank cover plate includes a shielding cover plate, an inner layer and an oute...

Claims

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