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前言流量测量仪表是能源计量中的主要计量仪表之一,是工矿企业搞好节能工作的必备计量器具,而节流装置是各种工业流量装置中使用最广泛的一类。节流装置通常包括节流件,取压装置和前后直管段,通常,节流装置的设计、计算过程比较繁琐,需要查阅很多图表,手算过程中又容易产生误差。笔者参考了有关资料并根据GB2624——81中所推荐的计算公式编制本计算程序,其中包括角接取压标准孔板、法兰取压标准孔板和
Preface Flow measurement instrument is one of the main measuring instruments in energy measurement, industrial and mining enterprises do a good job of energy-saving measurement instruments necessary, and throttling device is a variety of industrial flow devices used in the most widely used. The throttling device usually includes throttling parts, pressure-taking devices and front and back straight pipe sections. Usually, the design and calculation of the throttling device are complicated, and many charts need to be consulted, and errors are easily produced in the manual calculation. The author made reference to the relevant information and compiled the calculation program according to the calculation formula recommended in GB2624--81, including standard access plate with angle pressure, standard pressure plate with flange and