The Study of Large-Space Large-Volume Sprinkler's Structural Characteristics
According to the operating condition of large space automatic scanning and positioning extinguishing device,the structural characteristics of large space and large flow sprinkler are studied;according to the stress condition of spray head with large space and large flow,a stainless steel thrust ball bearing was proposed as a high speed rotating supporting part;the compo-sition and function of special-shaped nozzle of sprinkler head are described;by introducing the equivalent diameter of the special-shaped nozzle,two fire extinguishing performance parameters of large space,large flow sprinkler and jet radius were calculated,and compared with the experimental results.The results showed that,at rated pressure,the structural characteristics and stress conditions of large space and large flow sprinkler are the key factors affecting the fire extinguishing performance of large space sprinkler,such as rotating speed,jet radius,spray water flow,jet shape,fire extinguishing efficiency,etc;the equivalent diame-ter of special-shaped nozzle has a high engineering guiding significance for the design and manufacture of large-space sprinkler.
万方数据
维普
