CHEN Jun,CAO Xiao-dan,SHI Shan-feng,et al.Optimization Design of Fire Fighting Pipe Network in Aerodrome of Qingdao New Airport[J].China Water & Wastewater,2020,36(24 24):104-108.
Optimization Design of Fire Fighting Pipe Network in Aerodrome of Qingdao New Airport
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
24 24
Page:
104-108
Column:
Date of publication:
2020-12-17
- Keywords:
- fire fighting in aerodrome; hydraulic calculation; tolerance simplification; adjustment analysis
- Abstract:
- Due to the huge and special nature, the fire fighting pipe network in aerodrome is far more strict than the municipal water supply network in terms of safety and leakage rate. There are some difficulties in the design of fire fighting pipe network in aerodrome of Qingdao New Airport project (the main pipe length is more than 50 km), such as large node flow rate and huge water output of runway hydrant, and the maximum arrangement distance of runway hydrant can reach 200 m. These difficulties lead to the unmatched calculation methods, and thus bring controversy about the design node water quantity and “tolerance” settings in hydraulic calculation. Therefore, if we use the method of conservative and simple branch pipe network (selecting the farthest path) to carry out hydraulic check calculation for the most unfavorable point, the results often deviate greatly from the actual situation. According to the relevant regulations of the Federal Aviation Administration (FAA) of the United States, tolerance is used to simplify the pipe network system and node flow, and the adjustment is fitted to the traditional finite element method. As a result, the pipe network pressure and the probability of water leakage can effectively be reduced, and the fire pump head is reduced by 25%, effectively improves the safety of fire fighting pipe network in aerodrome, and saves the investment.
Last Update:
2020-12-17