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Passive containment auxiliary cooling system and method

A passive containment and auxiliary cooling system technology, applied in the field of nuclear power, can solve the problems of poor containment heat exchange, inability to achieve uniform, fast and effective containment cooling, etc., to increase the density difference, promote natural circulation, and enhance cooling capacity. Effect

Active Publication Date: 2020-03-31
CHINA NUCLEAR POWER ENG CO LTD
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  • Description
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Problems solved by technology

[0004] In order to at least partly solve the technical problem of poor heat exchange at the top of the steel containment vessel in the prior art and the inability to achieve uniform, rapid and effective cooling of the containment vessel, the present invention has been completed

Method used

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  • Passive containment auxiliary cooling system and method
  • Passive containment auxiliary cooling system and method

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Embodiment Construction

[0030] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined arbitrarily with each other.

[0032] Wherein, the terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present disclosure. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include plural forms unless the context clearly indicates otherwise.

[0033] Such as figure 1 As shown, the embodiment of the present invention provides a passive containment auxiliary cooling system. The containment includes...

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Abstract

The invention provides passive containment auxiliary cooling system and method. The containment includes an inner containment and an outer containment. The cooling system includes a plurality of spraynozzles, a spray pipeline, a distributing device, and a water supply device. One end of the spray pipeline extends to below the top outlet of the outer containment while the other end of same is connected to the water supply device. The spray nozzles are arranged on the spray pipeline below the top outlet of the outer containment and are arranged in the direction that cooling water sprayed from the nozzles fall on the center of the dome of the inner containment. The distributing device is arranged on the top of the inner containment and used for uniformly distributing the cooling water, sprayed from the nozzles, to the top surface of the inner containment so as to form a cooling water film. The method and system can effectively solve the defect that the containment can only be cooled by air passively and can improve the cooling capacity of the cooling system, thereby enhancing security of a nuclear power plant.

Description

technical field [0001] The invention belongs to the technical field of nuclear power, and in particular relates to a passive containment auxiliary cooling system and a passive containment auxiliary cooling method. Background technique [0002] The containment is an important safety barrier to prevent the leakage of radioactive materials in the event of an accident in a nuclear power plant. In the event of serious accidents such as water loss accidents or pipeline rupture accidents, the containment will be rapidly filled with a large amount of steam, causing the temperature and pressure in the containment to rise sharply. Once the temperature and pressure exceed the design allowable range, the containment may be damaged, causing radioactive Material leakage. Therefore, in order to ensure the safety of nuclear power plants, it is necessary to set up a special system for the cooling of the containment. [0003] At present, the small reactors of nuclear power plants have been ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C15/18G21C15/243
CPCG21C15/18G21C15/243Y02E30/30
Inventor 孙超杰刘长亮朱京梅龚钊王晓江杨长江丁亮刘嘉维郑云涛
Owner CHINA NUCLEAR POWER ENG CO LTD
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