A waste heat removal system for carbon dioxide cooling reactor
A waste heat discharge system, carbon dioxide technology, applied in reactors, cooling devices, greenhouse gas reduction, etc., can solve the problems of weak heat carrying capacity, high dependence of waste discharge on the power system, and low economic efficiency
Active Publication Date: 2020-10-23
NUCLEAR POWER INSTITUTE OF CHINA
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Problems solved by technology
[0005] The invention provides a waste heat discharge system for carbon dioxide cooling reactors, which solves the technical problems of the existing waste discharge, such as high dependence on the power system, low economic efficiency, and weak heat carrying capacity, by setting a waste heat discharge system that combines active and passive , which meets the defense-in-depth requirements of the specially designed safety system and improves the safety of the device
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[0026] The present invention is a design scheme of a shutdown cooling measure for a carbon dioxide cooled reactor, and proposes to discharge the reactor waste heat under normal shutdown and various accident shutdowns by setting an active and passive waste heat system to ensure the safety of the reactor core.
[0027] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, under the condition of not conflicting with each other, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0028] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from the scope of this ...
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The invention discloses a waste heat discharge system for a carbon dioxide cooling reactor. The waste heat discharge system includes: an active waste discharge subsystem and a passive waste discharge subsystem; the active waste discharge subsystem and the passive waste discharge subsystem share the waste discharge Heat exchanger: when the reactor is shut down normally or in an accident and the power supply is available, the waste heat removal system is automatically put into the active waste heat removal subsystem, and the CO2 coolant is driven into the waste heat removal system, and the heat is transferred to the separated heat pipe heat exchanger for heat dissipation ;When a power outage occurs, the active residual exhaust subsystem is out of operation, and the passive residual exhaust subsystem is automatically put into operation, and the CO2 coolant automatically enters the residual heat exhaust system, and the heat is transferred to the separated heat pipe heat exchanger for heat dissipation; by setting the active The waste heat removal system combined with the passive system meets the defense-in-depth requirements of the specially designed safety system and improves the safety of the device.
Description
technical field [0001] The invention relates to the field of nuclear safety equipment, in particular to a waste heat discharge system for carbon dioxide cooling reactors. Background technique [0002] For carbon dioxide cooled reactors, it is necessary to smoothly export the waste heat from the core after normal shutdown and emergency shutdown. Different from pressurized water reactors, after a breach accident in a carbon dioxide cooled reactor, the pressure of the core coolant is reduced, but there will be no exposure, and there is no need to adopt a safety injection system similar to a pressurized water reactor, mainly relying on the waste heat removal system to extract waste heat. Considering that the waste heat removal system must cover various working conditions such as normal shutdown, shutdown after a breach accident, and shutdown after a power outage accident, and based on the principle of defense in depth, a variety of waste heat removal systems must be set up. For...
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IPC IPC(8): G21C15/18
CPCY02E30/30
Inventor 张丹刘定明杨洪卢川冉旭杨帆李峰鲜麟张卓华周科吴广皓张航王玮邹志强毕树茂
Owner NUCLEAR POWER INSTITUTE OF CHINA