对室内消火栓灭火系统栓口出水压力的探讨

Discussion on the Pressure of Indoor Hydrant System for Fire Protection Design of Tall Buildings

通过对室内消火栓栓口出水压力的计算、分析,从理论上推导得出室内消火栓系统竖向分区的数值.对消火栓灭火过程进行了数据分析与计算,并结合我国消防人员实际体能和市场减压型消火栓生产情况,提出了对《高层民用建筑设计防火规范》(1999)第7.4.6.5条规定进行修改的建议:将该条规范中0.50 MPa降低为0.40 MPa,提高消火栓系统灭火的安全性、可靠性及合理性.

Based on the computation and analysis of the hydrant exit water pressure in indoor hydrant system, this paper theoretically infers to the system vertical district value in the indoor hydrant system. According to the data analysis and the computation to fire-fighting hydrant system and the actual physical ahility of fire fighter and the production of decompression style indoor hydrant system in China, it is proposed that in the 7. 4. 6.5th of 《Code for Fire Protection Design of Tall Buildings》 （ GB 50045 - 95 ） （ 2001 ） the hydraulic pressure be reduced by from O. 50 MPa to 0. 40 MPa, to enhance indoor hydrant system fire fighting security, the reliability and the rationality.