Fire-fighting arrangement method and fire-fighting system

Abstract

The invention discloses a fire protection arrangement method which comprises the following steps: dividing a fire protection zone into a plurality of segmented areas, setting an overlapping area between every two adjacent segmented areas as a transition area, setting fire detection devices in each segmented area and each transition area, and setting a fire extinguishing device and a drainage device in each segmented area, when the fire detection device in any segmented area detects that a fire occurs in the segmented area, the fire extinguishing device in the segmented area is turned on to extinguish fire, and fire-fighting drainage generated during fire extinguishing is discharged through the drainage device in the segmented area; or when the fire detection device in any transition area detects that a fire occurs in the transition area, the fire extinguishing devices in the two adjacent segmented areas of the transition area are turned on to extinguish fire, and fire-fighting drainage generated during fire extinguishing is discharged through the drainage devices in the two segmented areas. The invention further discloses a fire extinguishing system. The fire extinguishing device can be prevented from being started in a large area, accurate control is achieved, and discharge of fire fighting water is reduced.

Description

technical field [0001] The invention specifically relates to a fire-fighting arrangement method and a fire-fighting system. Background technique [0002] In a reactor-type nuclear power plant, a large number of cable corridors are configured according to the process requirements and the overall layout of the nuclear island. For columns A and B of the safety and power supply system, physical isolation is required to avoid common mode failures, resulting in many spans The long cable corridor of the factory building. For such long cable corridors or cross-floor large-area fire protection in the same fire compartment, considering the spread of fire, the fire protection system should take the entire fire compartment as the design protection range to calculate the maximum fire water volume and water pressure. [0003] Since most of the nuclear island is located in the control area, and its fire protection system usually adopts the automatic sprinkler system controlled by the fuse...

AI Technical Summary

Problems solved by technology

[0003] Since most of the nuclear island is located in the control area, and its fire protection system usually adopts the automatic sprinkler system controlled by the fuse valve, according to the previous fire control mode, when the fire protection zone alarms, it will trigger a chain to open all the fuse valves, and all the sprinklers will be connected together. Spraying for protection, it is easy to generate a large amount of radioactive drainage in the control area, which will bring a great burden to the downstream drainage treatment system and increase the treatment cost. Item poses a safety hazard

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