Method for prolonging response time of open fire extinguishing system

Abstract

The invention discloses a method for prolonging the response time of an open fire extinguishing system. The method comprises the following steps that: step 1, a fire-fighting pipeline framework is sequentially provided with a liquid supply device, a main liquid conveying pipeline, area control valve groups, system branch pipes and fire-fighting sprayers, wherein the liquid supply device comprises a main liquid conveying pump connected with the main liquid conveying pipeline, the main liquid conveying pipeline is connected with a plurality of the area control valve groups, each area control valve group corresponds to different fire zones, and the area control valve groups are connected with the system branch pipes mounted in the fire zones; and step 2, the system branch pipes are connected with a certain number of the fire-fighting sprayers to meet the fire-fighting protection requirements of the fire zones, and a special quick response device is arranged between each fire-fighting sprayer and the corresponding system branch pipe. In an open type fire extinguishing system with the large space of a single fire compartment or the long span of the single fire compartment, the response time of the fire extinguishing system can be prolonged in the mode that the system branch pipes are filled with a fire extinguishing agent for a long time, and more losses caused by fire behavior increase are prevented.

Description

technical field [0001] The invention mainly relates to the technical field of fire protection engineering, in particular to a method for improving the response time of an open fire extinguishing system. Background technique [0002] In conventional fire protection engineering, for an open fire extinguishing system, it often takes a certain amount of time to let the fire extinguishing agent fill the system branch behind the area control valve group when delivering the fire extinguishing agent to the fire sprinkler, which prolongs the response time of the system , so that it is difficult for the system to spray fire extinguishing agent from the fire nozzle in the fastest time to extinguish the fire, which will cause the fire to become larger and difficult to control. Protection is often more obvious. [0003] For example, the patent document publication number is CN110468914A, which provides a kind of fire-fighting pipeline system. The fire-fighting system applied to building...

AI Technical Summary

Problems solved by technology

The fire-fighting pipeline system can reduce the length of excavating trenches to bury fire-fighting pipelines in the past by setting the ring-shaped pipe network section overhead in the building or on the outer wall, and setting the connecting pipe section in the overhead pipe gallery. However, in the daily standby state, There is no fire extinguishing agent in the pipe body of the ring pipe network segment, and it takes a long delivery time to turn on the fire extinguishing

[0004] The existing pipe network open fire extinguishing system is mainly filled with fire extinguishing agent between the liquid supply device and the regional control valve group, while there is an empty pipe between the partition valve group and the fire sprinkler head of the system branch pipe, the fire extinguishing agent must pass through the regional control valve when extinguishing the fire Only when the branch pipes of the system are filled up can the nozzles be sprayed normally. For spaces with a large single protection area (such as the waiting area of ​​a station terminal building) and spaces with a long single protection area (such as pipe gallery tunnels, etc.), the regional control valve The total length of the branch pipes of the system after the group is generally relatively long, and the total volume of the empty pipes behind the valve is relatively large, which leads to a long time for the fire extinguishing agent to fill the branch pipes of the system, which greatly prolongs the response time of the system, and the response time It is often an important indicator to measure the fire extinguishing effectiveness of the fire extinguishing system (the initial fire is the easiest to extinguish). In order to solve this problem, it is necessary to develop a method to improve the response time of the open fire extinguishing system

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