An active combined passive containment cooling system

A containment cooling and passive technology, applied in cooling devices, nuclear power generation, climate sustainability, etc., to achieve the effects of strong operability, flexible access, and good availability

Active Publication Date: 2016-12-07
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These systems either adopt passive schemes or traditional active schemes, and there is no case of combining active and passive schemes

Method used

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  • An active combined passive containment cooling system
  • An active combined passive containment cooling system
  • An active combined passive containment cooling system

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0020] like figure 1 As shown, an active and passive containment cooling system provided by the present invention has a shielding workshop 1, a steel containment vessel 2, an air baffle 3, a top water tank 4, a containment spray pipe 5, and a shielding workshop building. Air port 6. The steel containment vessel 2 is set in the shielded plant 1, and the air baffle 3 is arranged inside the air inlet 6 of the shielded plant, and the air baffle is arranged along the vertical direction to divide the flow space of the air flow into an ascending channel 8 and a descending channel 9 . The top water tank 4 is arranged on the upper part of the shielding plant 1, and the top water tank is arranged in a ring shape and contains a water body 14. The containment spray pipe 5 arranged above the steel containment vessel 2 is connected to the top water tank 4. The a...

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PUM

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Abstract

The present invention relates to an active-combined passive containment cooling system comprising a shield building 1, a steel containment 2, an air baffle plate 3, a top-mounted water tank 4 and a containment spray pipe 5. An upper structure of the shield building is enclosed to form a chimney space 7 in a funnel shape with a large upper part and a small lower part, and the upper part of the chimney space is a vertical inner wall 19 while the lower part thereof is an inclined inner wall 10; an annular air supply slit for performing forced ventilation to the chimney space is provided at a lower edge of the inclined inner wall of the chimney space, and a flow passage of the annular air supply slit gradually becomes wider from an air supply outlet to inward until the annular air supply slit is connected with an air supply buffer space. The air supply buffer space 15 is connected with a plurality of branched air supply pipes 11,12 distributed in the circumferential direction thereof.

Description

technical field [0001] The invention belongs to the design of a containment cooling system of a nuclear power plant, in particular to an active and passive containment cooling system. Background technique [0002] AP1000 is the third-generation nuclear power system developed by Westinghouse Corporation of the United States. Its passive containment cooling system (PCS) is used to depressurize the containment and export reactor waste heat in case of an accident. It is one of the core safety systems of nuclear power plants. AP1000-PCS has passive characteristics. It utilizes the gravity downspray of cooling water and the thermal pressure ventilation effect of the flow field near the containment to realize heat export, which has high reliability. However, similar to all passive systems, PCS has limited system capacity, that is, low cooling power, which on the one hand limits the improvement of the overall parameters of the power plant, and on the other hand makes the PCS system ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C15/18
CPCG21C9/004G21C13/02G21C15/12G21C15/18Y02E30/30
Inventor 韩旭李军毛喜道李春王辉张慧敏
Owner CHINA NUCLEAR POWER ENG CO LTD
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