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A method and system for emergency power supply of a nuclear power plant

A technology of emergency power supply and power supply system, which is applied in the direction of emergency power supply arrangements, electrical components, circuit devices, etc., can solve the problems that cannot be stepped down by auxiliary spraying, and the design of power supply configuration cannot meet the requirements, etc., so as to achieve short construction period, The effect of simple implementation and low implementation risk

Active Publication Date: 2017-11-14
SUZHOU NUCLEAR POWER RES INST +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] According to the new SOP (System Operation Procedure, System Operation Procedure) accident regulations, the equipment of Daya Bay and Ling Ao Phase I nuclear power units cannot avoid superimposing a series of power failures, and nitrogen gas from the medium pressure safety injection tank enters the primary circuit; in the RX plant Under the accident conditions that cannot be entered, when the external power supply and the B-row AC or DC power supply are superimposed, it is impossible to retreat through the auxiliary spraying step-down
Relevant accident regulations involve the operation of valves, and the current power configuration design cannot meet the requirements under the corresponding accident superposition conditions

Method used

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  • A method and system for emergency power supply of a nuclear power plant
  • A method and system for emergency power supply of a nuclear power plant

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Embodiment 1

[0024] This embodiment provides an emergency power supply method for a nuclear power plant, which is used to provide four valves (models RIS001VP, RIS002VP, RIS003VP, RCV050VP) for specific fire protection functions through two sets of emergency power supplies when a nuclear power plant accident occurs. ) to provide emergency power supply, so as to implement the corresponding accident procedures according to the SOP procedures, and avoid further spread of nuclear power plant accidents.

[0025] The nuclear power plant emergency power supply method of the present invention is based on the nuclear power plant emergency power supply system. The nuclear power plant emergency power supply system includes the first power distribution system installed in the room of row A, and the second power distribution system installed in the room of row B. The first power distribution system is installed in the room of row B. A power distribution system includes a first power supply 100, a first ...

Embodiment 2

[0037] based on figure 1 Referring to the emergency power supply method for a nuclear power plant, the present invention also provides an emergency treatment system for a nuclear power plant.

[0038] like figure 2 As shown, the nuclear power plant emergency power supply system of the present invention includes:

[0039] The first power distribution system installed in the room of column A, and the second power distribution system located in the room of column B, the first power distribution system includes the first power supply 100, the first switch distribution box 300, and the first valve 400 And the second valve 500, the first switch drawer, the first switch and the second switch that are arranged in the first switch drawer for controlling the power supply channels of the first valve 400 and the second valve 500; the second power distribution system includes The second power supply 1000, the second switching distribution box 1200, the third valve 1300 and the fourth va...

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Abstract

The invention discloses an emergency power supply method and system for a nuclear power plant. The emergency power supply system of the nuclear power plant includes the first power distribution system and the first emergency power supply arranged in the room of row A, the second power distribution system and the second emergency power supply arranged in the room of row B; accommodate the first emergency power supply The first emergency power supply drawer and the second emergency power supply drawer of the power supply and the second emergency power supply; the special switch for the first emergency power supply, which is used when the first valve and the second valve of the room in row A lose power due to an emergency. Connect the first emergency power supply to the first transfer distribution box through the cable, and provide emergency power to the first valve and the second valve through the first emergency power supply; the second special switch for emergency power supply is used for sudden accidents leading to column B When the third valve and the fourth valve in the room lose power supply, the second emergency power supply is connected to the second transfer distribution box through the cable, and the third valve and the fourth valve are supplied with emergency power through the second emergency power supply.

Description

technical field [0001] The invention relates to the technical field of power supply safety of nuclear power plants, and more specifically, relates to an emergency power supply method and system for nuclear power plants. Background technique [0002] According to the new SOP (System Operation Procedure, System Operation Procedure) accident regulations, the equipment of the Daya Bay and Ling Ao Phase I nuclear power units cannot avoid superimposing a series of power failures, and nitrogen gas from the medium pressure safety injection tank enters the primary circuit; in the RX plant Under the accident conditions where access is impossible, when the external power supply and the AC or DC power supply of B column are lost superimposedly, it is impossible to step down and retreat through auxiliary spraying. Relevant accident regulations involve the operation of valves, and the current power configuration design cannot meet the requirements under the corresponding accident superpos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J9/06
Inventor 杨成峰李书周李江冯伟岗刘波
Owner SUZHOU NUCLEAR POWER RES INST
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