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Method and system for improving reliability of emergency power supplies of nuclear power plant

A technology of emergency power supply and nuclear power plant, applied in the direction of emergency power supply arrangements, battery circuit devices, collectors, etc., can solve the problems of electrical system failure, inability to supply nuclear power plants, oil supply pipelines, compressed air pipeline breaks, etc., to improve overall safety Effect

Active Publication Date: 2012-12-05
GUANGDONG NUCLEAR POWER JOINT VENTURE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the event of floods, tsunamis, mudslides, etc., the electrical system of the stationary diesel engine may fail due to flooding, the oil supply pipeline and compressed air pipeline may be broken due to external impact, and the main body of the diesel engine may be damaged due to impact. The deformation of the structure due to excessive force will cause the fixed diesel generator set to fail to start and thus fail to provide emergency power
[0015] Therefore, in the case of loss of other power sources, the fixed diesel generator set as the final emergency power source of the nuclear power plant, due to its own characteristics, determines that it cannot resist flooding disasters—such as floods, tsunamis, typhoon surges, etc. During extreme natural disasters, stationary diesel generators are prone to lose power and cannot provide power for nuclear power plants to discharge residual heat from the reactor core and cool the spent fuel pool, which will lead to catastrophic consequences for nuclear power plants

Method used

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  • Method and system for improving reliability of emergency power supplies of nuclear power plant
  • Method and system for improving reliability of emergency power supplies of nuclear power plant
  • Method and system for improving reliability of emergency power supplies of nuclear power plant

Examples

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Effect test

Embodiment 1

[0316] see Figure 9 to Figure 15D , in the first way of the waterproof door 4104,

[0317] The waterproof door 4104 can be hinged at the passage opening, and is rotatably connected with the accommodating cavity through a hinge shaft. Specifically, a hinge shaft 4111 can be provided at the passage opening, and a sleeve 4115 that can be sleeved on the hinge shaft 4111 is provided at a corresponding position on the side of the waterproof door 4104, and the sleeve 4115 cooperates with the hinge shaft 4111 to make the waterproof door 4104 wrap around the hinge. The shaft 4111 rotates to realize the opening and closing of its channel opening.

[0318] Alternatively, a sleeve 4115 may also be provided at the passage opening, and a hinge shaft 4111 that can be inserted into the sleeve 4115 is provided at a corresponding position on the side of the waterproof door 4104. Through the cooperation of the sleeve 4115 and the hinge shaft 4111, the waterproof The door 4104 rotates around t...

Embodiment 2

[0324] see Figure 12 , 13 , 14A, 14B, 14C, in the second way, the passage opening is provided with an inner door 4160 which is normally opened for normal access, and the waterproof door 4104 is arranged on the outer wall of the accommodating cavity, and is always located outside the passage opening s position.

[0325] Specifically, the structural design of the inner door 4160 can adopt the following two methods:

[0326] A casing is provided at the passage opening, and a rotating shaft that can be inserted into the casing is provided at a corresponding position on the side of the inner door 4160. The sleeve and the rotating shaft cooperate to make the inner door 4160 rotate around the rotating shaft to realize the opening and closing of the passage opening. Closed to facilitate the entry and exit of operators (not shown).

[0327] Alternatively, a rotating shaft is provided at the passage opening, and a sleeve that can be sleeved on the rotating shaft is provided at a cor...

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Abstract

The invention relates to a method and system for improving reliability of emergency power supplies of a nuclear power plant. At least one path of high-capacity battery energy storage system (fixed energy storage system and / or movable energy storage system) is used to supplement or replace final emergency power supplies of a nuclear power plant. When all existing emergency power supplies of the nuclear power plant fail, the system is started to supply power for equipment in an emergency plant of the nuclear power plant so as to keep discharging waste heat of reactor cores and cooling spent fuel pools of the nuclear power plant, thus ensuring the safety of the nuclear power station. The method and system provided by the invention can be used for resisting against extreme weathers and avoiding common mode failure of the emergency power supplies in the extreme weathers, can strength the reliability of the emergency power supplies of the nuclear power plant and can at least reduce the melting probability of reactor cores by 21.6%, thereby improving the integral nuclear safety level of the nuclear power plant.

Description

technical field [0001] The invention belongs to the key technology of the million-kilowatt advanced pressurized water reactor nuclear power plant, and also relates to new high-capacity and high-power battery technology. In particular, it relates to a method and system combining the key technology of the million-kilowatt advanced pressurized water reactor nuclear power plant and the battery management technology. Background technique [0002] A nuclear power plant is a power plant that uses the energy released by nuclear fission (Nuclear Fission) or nuclear fusion (Nuclear Fusion) reactions to generate electricity. [0003] In order to protect the health of the staff of the nuclear power plant and the residents around the nuclear power plant, the design, construction and operation of the nuclear power plant adopt the principle of defense in depth, and provide multiple protections in terms of equipment and measures to ensure that the nuclear power plant can effectively control ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J9/00H02J7/02H02J13/00
Inventor 戴忠华陈军琦王成铭朱钢李书周林杰东王永年苏广超吴宇坤彭顺罗育智林鸿江黄卫刚
Owner GUANGDONG NUCLEAR POWER JOINT VENTURE
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