Passive waste heat removal hot trap device for inhibiting influence of marine environment

Abstract

The invention discloses a passive waste heat removal hot trap device for inhibiting the influence of the marine environment. The device comprises a cooling water cabin composed of an upper cooling water cabin split body and a lower water cabin split body, the upper cooling water cabin split body is arranged on the lower cooling water cabin split body, and a steam discharge port communicated with the atmospheric environment is arranged in the top of the upper cooling water cabin split body; the bottom of the upper cooling water cabin split body is communicated with the top of the lower coolingwater cabin split body through a plurality of overflow openings arranged at intervals; backflow pipelines are connected to two sides of the bottom of the upper cooling water tank split body, and the backflow pipelines extend towards the lower cooling water tank split body and are communicated with the inner bottom of the lower cooling water tank split body; and a passive waste heat removal cooleris arranged in the lower cooling water tank split body and is submerged in cooling water in the lower cooling water tank split body. The exposure of the passive waste heat removal cooler, caused by sloshing of a liquid in the cooling water cabin due to marine environments such as swing, is avoided, so stable operation of the passive waste heat removal system is facilitated.

Description

technical field [0001] The invention relates to the technical field of specially designed safety facilities for floating nuclear power platforms, in particular to a passive waste heat discharge heat sink device that suppresses the influence of the marine environment. Background technique [0002] Floating nuclear power platforms are located at sea, and affected by the marine environment, the external support conditions for floating nuclear power platforms are limited. Therefore, when designing special safety facilities for nuclear power systems, passive safety technologies that can be put into use without external power should be considered as much as possible to improve safety and reliability. [0003] Advanced nuclear power technologies such as AP1000, APR1400, and Hualong No. 1 all adopt the traditional passive waste heat removal method, that is, heat exchangers or coolers are arranged in large-volume pools, and the heat of core decay is discharged by boiling and evaporat...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of uneven temperature distribution of cooling water inside the cooling water tank and low liquid level of the cold water tank in the prior art by providing a passive waste heat discharge heat sink device that suppresses the influence of the marine environment. When the liquid level sloshes, it is easy to expose the heat exchanger and other problems

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