火法冶炼和石油、化工的部分装置,对流量的测量精度要求比较高。为此,除了选用比较精密的测量仪表外,尚需考虑被测介质的温度和压力对流量的影响。在实际生产中,工作条件是经常变化的,被测介质的温度和压力往往与设计条件有所偏离。组成流量测量的温度、压力自动校正系统,对于提高流量测量的准确性是十分必要的。利用国产DDZ—Ⅱ型仪表组成该系统,实践证明是比较简单可行的。下面就其工作原理和调试 Fire pyrometallurgy and petroleum, chemical part of the device, the flow measurement accuracy requirements are relatively high. To this end, in addition to the selection of more sophisticated measuring instruments, the need to consider the measured medium temperature and pressure on the flow. In actual production, the working conditions are constantly changing, and the temperature and pressure of the measured medium often deviate from the design conditions. It is very necessary to improve the accuracy of the flow measurement to form the automatic temperature and pressure calibration system of flow measurement. The use of domestic DDZ-Ⅱ instrument form the system, proved to be relatively simple and feasible. Here’s how it works and debugging