Containment heat guiding device and heat guiding method of nuclear power device

A technology of heat export and containment, which is applied in the field of reactors, can solve the problems of not being able to provide sufficient capacity of containment cooling water tanks, and cannot provide air flow channels, etc., so as to avoid over-temperature and over-pressure failure, large specific heat capacity, and ensure safety.

Pending Publication Date: 2019-01-25
NO 719 RES INST CHINA SHIPBUILDING IND
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AI Technical Summary

Problems solved by technology

[0003] There are differences in the design and construction of marine nuclear power plants and land power plants. The containment is located in the reactor compartment, which cannot provide a containment cooling water tank with sufficient capacity, and the arrangement of the containment vessel and the reactor compartment is compact, which cannot provide the air required for natural circulation. Runner

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  • Containment heat guiding device and heat guiding method of nuclear power device
  • Containment heat guiding device and heat guiding method of nuclear power device
  • Containment heat guiding device and heat guiding method of nuclear power device

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0026] see figure 1 and figure 2 As shown, the embodiment of the present invention provides a containment heat exporting device, comprising: a shielding layer 1 disposed outside the containment 2, with a gap 13 left between the shielding layer 1 and the containment 2; a water inlet 3 disposed on the In the bottom of the shielding layer 1, the water inlet connects the outside of the shielding layer with the aforementioned gap 13, and the air outlet hole 4 is located on the top of the shielding layer 1, and the air outlet connects the outside of the shielding layer with the aforementioned gap 13.

[0027] Preferably, there are multiple water inlet holes 3 arranged symmetrically with respect to the central axis of the containment vessel 2, and there are multiple air outlet holes 4 arranged symmetrically; the polygon formed by the lines connecti...

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Abstract

The invention discloses a containment heat guiding device of a nuclear power device and relates to the technical field of reactors. The containment heat guiding device comprises a shielding layer arranged on the outer side of a containment, a water inlet hole formed in the lower portion of the shielding layer and communicated with the outside of the shielding layer and a gap, and an air outlet hole formed in the top of the shielding layer and communicated with the outside of the shielding layer and the gap, wherein the gap is reserved between the shielding layer and the containment. The invention also discloses a containment heat guiding method of the nuclear power device. By introducing seawater to the gap between the shielding layer and the containment under the extreme severe working condition, the containment is directly cooled, it is avoided that the containment is invalid due to temperature and pressure exceeding, a large number of radioactive substances are prevented from beingleaked to other cabins of the nuclear power device and the atmospheric environment, and the safety of persons and the environment is ensured.

Description

technical field [0001] The invention relates to the technical field of reactors, in particular to a containment heat derivation device of a nuclear power plant and a heat derivation method thereof. Background technique [0002] After a severe reactor accident, the containment vessel may heat up and pressurize, and may even fail. Maintaining the integrity of the containment can greatly reduce the release of radioactive materials to the external environment, and is also an important goal of severe accident mitigation strategies. In severe accidents (such as severe accidents originating from large breaches), a large amount of high-temperature steam is usually discharged into the containment vessel, causing the temperature and pressure of the containment vessel to rise. The combustible gas generated during the accident will be burned in the containment vessel or eliminated by the hydrogen recombiner, which will release a large amount of heat. When the molten material melts thr...

Claims

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Application Information

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IPC IPC(8): G21C15/18
CPCG21C15/18Y02E30/30
Inventor 李龙泽王琮邱金荣王珏刘怡雯崔其冠
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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