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A large advanced pressurized water reactor protects the main coolant pump firefighting system

A fire protection system and coolant pump technology, applied in cooling devices, emergency protection devices, reactors, etc., can solve the problems of lack of systematic perception ability, system action feedback and anti-misoperation ability, so as to reduce human-induced damage, High safety and the effect of improving safety

Active Publication Date: 2022-03-18
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At the same time, the fire protection scheme of the main coolant pump in the second-generation improved power station only has a simple fire water tank liquid level detection and system start control button, which lacks systematic perception capabilities, system action feedback and anti-misoperation capabilities, and is safe and reliable. Does not match the needs of third-generation nuclear power

Method used

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  • A large advanced pressurized water reactor protects the main coolant pump firefighting system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] figure 1 It is a schematic diagram of the fire protection scheme of the main coolant pump of "Hualong One". The fire protection system includes four parts: spraying facilities, system comprehensive situation awareness 10, system startup status feedback 14 and startup device;

[0025] Under normal circumstances, the fire protection system is in a standby state, and the system's comprehensive situational awareness 10 monitors the spraying facilities in real time to ensure that the entire fire protection system is always in good condition;

[0026] When a fire occurs in the main coolant pump room and the fire protection system needs to be activated, the activation device will start the spraying facilities, and the system start status feedback 14 will monitor the operation status in real time, comprehensively display whether the spraying facilities are normal, and ensure the fire extinguishing effect of the fire protection system.

[0027] Spraying facilities such as figu...

Embodiment 2

[0032] Such as figure 1 The schematic diagram of the main coolant pump fire protection scheme of "Hualong No. 1" is shown, including the driving power source 1, self-prepared fire water tank 5, pipe network 9, external fire water supply interface 8, system comprehensive situation awareness 10, and system startup status feedback 14. Starting device 11. Anti-misoperation protection 12. The driving power source 1 includes a gas cylinder 13 , a leak detector 2 , a diaphragm 3 , and a flow detector 4 . The self-contained fire water tank module 5 includes a liquid level detector 6 and a check valve 7 .

[0033] Fire extinguishing implementation is composed of driving power source 1, self-provided fire water tank 5, pipe network 9, and external fire water supply interface 8, with sufficient driving gas, fire water volume and reasonable pipe network 9 configuration.

[0034] Under normal circumstances, the system comprehensive situational awareness 10 is comprehensively generated by ...

Embodiment 3

[0039] A large-scale advanced pressurized water reactor can protect the main coolant pump firefighting system. The firefighting system includes four parts: spraying facilities, system comprehensive situation awareness 10, system startup status feedback 14 and startup device;

[0040] Under normal circumstances, the fire protection system is in a standby state, and the system's comprehensive situational awareness 10 monitors the spraying facilities in real time to ensure that the entire fire protection system is always in good condition;

[0041] When a fire occurs in the main coolant pump room and the fire protection system needs to be activated, the activation device will start the spraying facilities, and the system start status feedback 14 will monitor the operation status in real time, comprehensively display whether the spraying facilities are normal, and ensure the fire extinguishing effect of the fire protection system.

[0042] The spraying facilities include a self-pro...

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Abstract

The invention belongs to the technical field of nuclear reactor design, in particular to a large-scale advanced pressurized water reactor fire protection system capable of protecting main coolant pumps. The fire protection system includes four parts: spraying facilities, system comprehensive situational awareness, system startup status feedback and startup device; under normal circumstances, the firefighting system is in a standby state, and the system's comprehensive situational awareness monitors the situation of spraying facilities in real time to ensure that the entire firefighting system is always in good condition. Status: When a fire occurs in the main coolant pump room and the fire protection system needs to be activated, the activation device will start the spraying facilities, and the system’s startup status feedback will monitor the operation in real time, comprehensively display whether the spraying facilities are normal, and ensure the fire extinguishing effect of the fire protection system. The overall safety of the fire-fighting system of the present invention is high, and can effectively protect the fire-fighting safety of the main coolant pump.

Description

technical field [0001] The invention belongs to the technical field of nuclear reactor design, in particular to a large-scale advanced pressurized water reactor fire protection system capable of protecting main coolant pumps. Background technique [0002] The large-scale advanced pressurized water reactor - Hualong No. 1 reactor is an advanced third-generation nuclear power plant, and the design requirements and safety of each system have been greatly improved. Some schemes of the previous second-generation improved power plants can no longer meet the new technical requirements. For example, the main coolant pump fire protection of Hualong No. 1, compared with the previous power stations, the fire protection tasks of the main coolant pump, such as equipment protection area and room area, have greatly changed. [0003] At the same time, the fire protection scheme of the main coolant pump in the second-generation improved power station only has a simple fire water tank liquid ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C9/04G21C15/18
CPCG21C9/04G21C15/182Y02E30/30
Inventor 邢继于沛刘亚光李丽娟王广飞王佳明姚鸿帅赵斌丁亮马惠昀侯婷
Owner CHINA NUCLEAR POWER ENG CO LTD