高层建筑消火栓减压孔板的计算与分析

Calculation and analysis of hydrant decompression orifice plate of high-rise building

通过对一栋高层住宅消火栓消防给水系统两种工况下减压孔板的分析和计算 ,认为减压孔板计算应以水泵供水工况计算减压值和孔板型号 ,再以水箱供水工况进行校核 ,然后确定减压孔板型号。以达到严格执行《高层民用建筑设计防火规范》的目的。

The writer studies the calculation and analysis of the decompression orifice plate under two circumstances-fire control and water supply of the hydrant of a high-rise building. He puts forward that the amount of decompression and the model of the orifice plate should be calculated accordi ng to the water-s upply situation of the hydraulic pump. Then it is checked through the water-sup p ly situation of the water chamber and the model of the orifice plate is decided. Only in such way can the hydrant meets The Fire Prevention Norm of High-rise Building.