Safe bunker structure of reactor
A reactor and safety technology, applied in the direction of reactors, greenhouse gas reduction, nuclear power generation, etc., can solve the problems of large buoyancy, inconvenient containment penetration and piping, excessive external pressure, etc., and achieve the effect of easy design and layout
Inactive Publication Date: 2016-06-08
SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD
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Problems solved by technology
The containment vessel is completely immersed in the water space, causing the containment vessel to bear excessive external pressure and large buoyancy, and it is inconvenient to penetrate the containment vessel and lay pipes
Method used
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[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0023] see figure 1 , the safety shelter structure of the reactor, including a plant and a containment vessel arranged in the plant, the containment vessel is composed of a containment vessel body 5 and a containment arc top 6 arranged on the containment vessel body, and a containment arc top 6 is provided with a safety vessel The cooling water tank 7 with the same diameter as the shell body and the arc top of the containment vessel as the bottom surface, so that the arc top 6 of the containment vessel is submerged in water, and the water in the cooling water tank 7 will be effectively taken out of the containment vessel 5 in the event of a reactor mass energy release of heat.
[0024] A tank cover 8 is provided on the top of the cooling wat...
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The invention discloses a safe bunker structure of a reactor. The safe bunker structure comprises a plant and a containment disposed in the plant. The containment is composed of a containment body and a containment arc roof arranged on the containment body, the containment arc roof is provided with a cooling water tank with a diameter equivalent to that of the containment body and with the containment arc roof as the undersurface, the top of the cooling water tank is provided with a tank lid, and pipeline penetration parts for connecting the inside and outside of the containment are all disposed on the containment body. The invention provides the safe bunker structure suitable for a small modular reactor, after an accident, most of the hot steam in the containment gathers at the containment arc roof, therefore heat transfer at the containment arc roof occupies the vast majority of containment cooling, and water in the cooling water tank can effectively carry away the heat of the containment.
Description
technical field [0001] The invention relates to the field of safety protection and maintenance operations of nuclear power plant reactors, in particular to a safety shelter structure for small modular reactors. Background technique [0002] The containment vessel of the reactor is used as a defense-in-depth barrier to contain radioactive materials after an accident and reduce the release of radioactive materials. The cooling method (or system) of the containment provides the final safety-related heat sink for the reactor, reduces the temperature and pressure of the containment after an accident, and reduces the release of radioactive fission products. [0003] There are many ways to cool the containment. In the traditional second-generation PWR power station, it is mainly realized by spraying inside the containment. That is, after the accident (mass energy release), the driving force of the pump is used to place The spray pipeline inside the containment transports cooling w...
Claims
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Login to View More IPC IPC(8): G21C15/18G21C13/02G21D1/00
CPCY02E30/00Y02E30/30
Inventor 申屠军郑明光司胜义
Owner SHANGHAI NUCLEAR ENG RES & DESIGN INST CO LTD