Unlock instant, AI-driven research and patent intelligence for your innovation.

Large size advanced pressurized water reactor fire extinguishing system capable of protecting main coolant pump

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, etc., to reduce human-induced damage, The effect of avoiding equipment damage and reducing risks

Active Publication Date: 2021-07-20
CHINA NUCLEAR POWER ENG CO LTD
View PDF4 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Large size advanced pressurized water reactor fire extinguishing system capable of protecting main coolant pump

Examples

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] like figure 1 The schematic diagram of the main coolant pump fire protection scheme of "Hualong No. 1" shown, including 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 , and the self-contained fire water tank module 5 includes a liquid level detector 6 and a check valve 7 .

[0033] The 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 th...

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of nuclear reactor design, and particularly relates to a large size advanced pressurized water reactor fire extinguishing system capable of protecting a main coolant pump. The fire extinguishing system comprises a spraying facility, system comprehensive situation awareness, system starting state feedback and a starting device. Under normal conditions, the fire fighting system is in a standby state, the system comprehensively senses the situation and monitors the situation of spraying facilities in real time, and it is guaranteed that the whole fire fighting system is in a good state all the time; and when a fire occurs in a main coolant pump room and the fire extinguishing system needs to act, the starting device starts the spraying facility, then system starting state feedback monitors the operation condition in real time, whether the spraying facility is normal or not is comprehensively displayed, and the fire extinguishing effect of the fire extinguishing system is guaranteed. The fire-fighting system is high in overall safety, and the fire-fighting safety of the main coolant pump can be effectively protected.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(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