A passive air cooling system applied to pccs heat exchange tank

An air cooling system and air cooling technology, applied in cooling devices, reactors, nuclear power generation, etc., can solve the problems of excessive water evaporation, small heat exchange of equipment, and short system working time.
CN108877965BActive Publication Date: 2021-09-10HARBIN ENG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HARBIN ENG UNIV
Publication Date
2021-09-10

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Abstract

The invention belongs to the research field of heat exchange devices of nuclear power plants, and in particular relates to a passive air cooling system applied to PCCS heat exchange tanks. A passive air cooling system applied to a PCCS heat exchange tank, consisting of a containment shell, an external displacement heat exchange tank, air cooling equipment around the water tank, air cooling equipment located in the central area of ​​the water tank, a PCCS heat exchanger, an air collector, The chimney is composed of several parts, and its characteristic is that the interior of the containment includes the reactor pressure vessel, the reactor pit, the wall of the containment vessel, and the PCCS heat exchanger. , the air cooling equipment located in the central area of ​​the water tank, the air cooling equipment around the water tank, and the external hot water replacement tank. The gas collector is fixed on the upper surface of the external hot water replacement tank through brackets. Vertical large-diameter circular pipe, the outlet is connected to the atmosphere, and a rain shield is installed at the outlet.
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Description

technical field

[0001] The invention belongs to the research field of heat exchange devices of nuclear power plants, and in particular relates to a passive air cooling system applied to PCCS heat exchange tanks. Background technique

[0002] The application and development of nuclear energy in the world today mainly revolves around two major trends: on the one hand, improving the power generation efficiency of nuclear power plants through the development of relevant technologies; on the other hand, resisting potential security threats by enhancing the safety of nuclear power plants, especially the passive safety. The passive containment cooling system (PCCS) related to the latter has received more and more attention from researchers after the Fukushima nuclear accident in Japan. When the active safety facilities of most existing nuclear power plants are put into operation under severe accidents, they need the energy provided by off-site electric power or emergency diesel gen...

Claims

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