Application of flow switches in fire fighting system of high-rise building with height of 250 meters or above

Abstract

The invention discloses application of flow switches in a fire fighting system of a high-rise building with the height of 250 meters or above. A fire fighting pipe network is arranged in a floor corresponding to each floor area. The fire fighting system comprises a plurality of water storage pools, wherein the water storage pools correspond to the floor areas one to one and are each connected withtwo fire fighting water supply pipelines arranged in parallel, and the two fire fighting water supply pipelines form branches with the first flow switches and are connected into the fire fighting pipe networks arranged in the floors of the corresponding floor areas correspondingly; a plurality of transmission water pumps, wherein the transmission water pumps are connected to the two fire fightingwater supply pipelines connected with the water storage pools; a tower top fire pool, wherein the tower top fire pool is arranged on the roof of the high-rise building, two gravity fire fighting water supply pipelines which are provided with the second flow switches and sequentially connect the water storage pools in series downwards are arranged at the bottom of the tower top fire pool, and thesecond flow switches are connected to an external fire automatic alarm system; and a controller, wherein the controller is electrically connected with the first flow switches and the transmission water pumps. According to the scheme, response is fast, water division is accurate, and cross-water-supply and partition fire crossing or cross-region second-time water supply control with fire hydrants can be achieved.

Description

technical field [0001] The invention relates to the technical field of fire protection, in particular to the application of a flow switch in a fire protection system of a high-rise building with a height of more than 250 meters. Background technique [0002] The normal and high pressure fire water supply methods for high-rise buildings above 250 meters are usually: 1. Separate transfer and decompression water tanks; 2. The combined water tank doubles as a decompression transfer water tank; generally, each water tank controls two water supply zones. [0003] Usually, in the fire protection system with a common water tank, the gravity water supply pipe of the water tank is equipped with a corresponding induction switch as the pump start signal, and the nearest water transfer pump under the water supply area is directly started by sensing the water flow of the gravity water supply pipe, and all the water transfer pumps under it are linked together. , so that the roof pool and t...

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Problems solved by technology

[0003] Usually, in the fire protection system with a common water tank, the gravity water supply pipe of the water tank is equipped with a corresponding induction switch as the pump start signal, and the nearest water transfer pump under the water supply area is directly started by sensing the water flow of the gravity water supply pipe, and all the water transfer pumps under it are linked together. , so that the roof pool and the basement pool can simultaneously supply water to the gravity water supply tank of the water supply zone where the fire is located; Large initial investment and maintenance costs

[0004] In addition, due to the large longitudinal span of the over-limit high-rise, the fire situation is difficult to predict. During the actual rescue process, fire hydrants on other floors will be used to erect waterways to the floor where the fire occurred. , making the response of fire extinguishing slow and the effect of fire treatment is not ideal

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