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A passive nuclear power plant steam generator secondary side emergency water injection system and nuclear power plant

A steam generator and water injection system technology, applied in the field of nuclear energy, can solve problems such as the loss of steam generator water supply capacity, and achieve the effects of improving the ability to deal with accident conditions, reducing dependence, and ensuring core safety

Active Publication Date: 2021-03-30
CHINA GENERAL NUCLEAR POWER OPERATION +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This technical solution also inherits the shortcomings of the ASG system. In the case of a power failure in the whole plant, it will lose the ability to supply water to the steam generator.

Method used

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  • A passive nuclear power plant steam generator secondary side emergency water injection system and nuclear power plant
  • A passive nuclear power plant steam generator secondary side emergency water injection system and nuclear power plant
  • A passive nuclear power plant steam generator secondary side emergency water injection system and nuclear power plant

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Embodiment Construction

[0048] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it should be understood that "front", "rear", "upper", "lower", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is constructed and operated in a specific orientation, It is only for the convenience of describing the technical solution, but does not indicate that the referred device or element must have a specific orientation, so it should not be construed as a limitation of the present invention.

[0049] It should also be noted that terms such as "installation", "connection", ...

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Abstract

The invention relates to a passive emergency water injection system for secondary sides of steam generators in a nuclear power plant and the nuclear power plant. The system can effectively cope with the working conditions of entire plant power failure and auxiliary water supply system failure, ensure supply of a water source of the secondary sides of the steam generators, and effectively improve the safety of a reactor; and multiple water supply tanks are arranged, as long as pressure of one steam generator meets the requirement, emergency water injection can be provided for the accident steamgenerator, so that dependence on external resources is reduced, the ability of the nuclear power plant to cope with accident working conditions is improved, sufficient time is provided for personnelintervention after the accident, and the safety of a reactor core is ensured.

Description

technical field [0001] The invention relates to the technical field of nuclear energy, in particular to an emergency water injection system on the secondary side of a steam generator in a passive nuclear power plant and a nuclear power plant. Background technique [0002] At present, the emergency water injection technologies for the secondary side of the steam generator in the PWR nuclear power plant mainly include: [0003] (1) Auxiliary water supply system (ASG) [0004] Such as figure 1 As shown, in order to cope with steam or water supply pipe rupture accidents, the CPR1000 unit has designed an auxiliary water supply system. This system is used as an emergency measure. The circuit maintains a cold source and discharges the residual power of the core until the core residual heat removal system is allowed to be put into operation. During this stage, steam is generated by steam generators to remove heat from the core. [0005] The auxiliary water supply system uses ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C15/18G21C15/14
CPCG21C15/14G21C15/18Y02E30/30
Inventor 吴震华许俊俊徐慧波张立军
Owner CHINA GENERAL NUCLEAR POWER OPERATION
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