风管系统静压箱局部阻力分析与计算

Local Resistance Analysis and Calculation Methods for the Chamber Box of the Duct System

静压箱是通风空调系统中常用的风管配件。在设计阶段,它的阻力计算,是风机选型静压计算中必不可缺的一环。笔者近期查阅相关资料,发现关于静压箱局部阻力计算方面的资料很少且缺乏一个统一的标准。于是根据自身在空调行业的工作经验并参照国内外相关技术资料,就静压箱的阻力计算提出自己采用的计算方法。并结合工程项目实例,检讨此计算方法的可行性。

Chamber box is the accessory generally used in duct system. At the design stage, its resistance calculation is an essential part of the calculation of fan selection HIP. It is found that little information about the local resistance calculation of chamber box and lack of a unified standard. Based on experience in the air conditioning engineering industry, and with reference to the relevant technical information on the local resistance calculation, the method of calculation was proposed. According to practical project, the feasibility of the method of calculation was reviewed.