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Passive residual heat removal system

A passive waste heat and subsystem technology, applied in the field of nuclear power, can solve problems such as poor safety, and achieve the effect of improving reliability and ensuring safety

Pending Publication Date: 2022-04-29
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a passive waste heat discharge system, which is used to solve the defect of poor safety of the starting device of the passive waste heat discharge system in the prior art

Method used

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] The features of the terms "first" and "second" in the description and claims of the present invention may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0027] Combine below Figure 1-Figure 3 The passive waste heat removal system of the present invention is desc...

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Abstract

The invention relates to the technical field of nuclear power, and provides a passive residual heat removal system, which comprises a reactor subsystem, a cooling subsystem, a heat exchange subsystem and a heat exchange subsystem, the cooling subsystem is provided with a plurality of sea ports, the sea port located at the bottom of the cooling subsystem is provided with a valve, the cooling subsystem and the reactor subsystem are connected and separated, and liquid metal is arranged in the cooling subsystem; the shutdown rod is arranged in the slide way; and the starting subsystem is partially arranged in the slide way and is connected with the shutdown rod and the valve. According to the passive residual heat removal system provided by the invention, when an accident occurs, the starting subsystem is pushed to move by utilizing the principle of thermal expansion and cold contraction of liquid metal, and the valve is opened while shutdown is realized, so that the cooling subsystem and the reactor subsystem are cooled, and the reliability of the passive residual heat removal system is improved; and the safety of the reactor is ensured.

Description

technical field [0001] The invention relates to the technical field of nuclear power, in particular to a passive waste heat discharge system. Background technique [0002] Ensuring nuclear safety is the prerequisite for the application of nuclear energy technology. For a long period of time after the reactor is shut down, residual heat is generated due to residual fission and fission product decay. The continuously generated residual heat gradually increases the temperature and pressure of the core. Safety, the waste heat of the reactor must be discharged in a timely and reliable manner, otherwise accidents such as core melting, pressure boundary and containment damage will occur. The nuclear power plant has specially designed a passive waste heat removal system for this purpose. When a plant-wide power outage occurs, the principle of natural circulation is used to overcome the flow resistance in the circuit and rely on the driving force formed by the difference in working m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C15/18
CPCG21C15/18Y02E30/30
Inventor 戴春辉柯汉兵宋苹徐广展劳星胜黄崇海郭晓杰李少丹廖梦然宋飞飞
Owner NO 719 RES INST CHINA SHIPBUILDING IND