Fixed and moving combination compressed air foam fire extinguishing system suitable for super high-rise building and design method thereof

Abstract

The invention discloses a fixed and moving combination compressed air foam fire extinguishing system suitable for a super high-rise building and a design method of the fixed and moving combination compressed air foam fire extinguishing system. In order to achieve fire extinguishment of the super high-rise building which is characterized in that the height is larger than the effective conveying height of a compressed air foam system, the fixed and moving combination compressed air foam fire extinguishing system can effectively convey compressed air foam to each floor of the super high-rise building to conduct fire extinguishment through a fixed and moving combination method, specifically, the building height of the super high-rise building is larger than the effective conveying height of the compressed air foam system, and therefore the problem that fire extinguishing media are not easily upwards conveyed to the super high-rise building is solved. According to the fixed and moving combination compressed air foam fire extinguishing system, a vertical firefighting pipe is partitioned by electric butterfly valves, and therefore when a fire happens, the corresponding electric butterflyvalve can be closed according to the fire occurrence position, the time of the process that the fire extinguishing foam is conveyed to the floor where the fire happens can be shortened, and the phenomenon that due to the fact that the pressure of the bottom end of a pipeline is excessively high, a pipe fitting is damaged is avoided.

Description

technical field [0001] The invention relates to the technical field of fire extinguishing systems in super high-rise buildings, in particular to a fixed-movement combined compressed air foam fire extinguishing system suitable for super high-rise buildings and a design method thereof. Background technique [0002] In the past 10 years, super high-rise buildings in my country have been in a period of rapid development. At present, most first-tier and second-tier cities have entered the era of super high-rise buildings. Landmark super high-rise buildings have gradually become the new business cards of cities. However, most of the super high-rise buildings are located in densely populated urban centers, and have many floors, complex functions, and many fire hazards. Many of them integrate hotels, restaurants, entertainment, offices, and shopping. Once a fire accident occurs, the fire will be rapid and the consequences will be serious. , often causing major accidents involving ma...

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Problems solved by technology

Compressed air foam has high-efficiency fire extinguishing ability, and can complete fire extinguishing in a shorter time, so the water consumption can be greatly reduced. Due to the low density, the transportation height will be higher than the water transportation height, but the experiment shows that it can guarantee the fire extinguishing effect. The effective conveying height of compressed air foam is 230m, and the building height of many super high-rise buildings will still exceed the effective conveying height of compressed air foam. When a fire occurs, the floor height exceeds the effective conveying height of compressed air foam, and it is still impossible to effectively extinguish the fire

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