我厂用水是从60km远的陡河用φ800mm的钢管引入厂区贮水池的。由于水经过长途输送,压损较大.又因水内含悬浮物、草类等杂质较多,极易造成堵塞,无法使用均速管测量。后来改用了普通单发生体涡街流量计。但在流量小时,柱状发生体不能产生信号,也未解决这一大管径低流速流量测量的 I plant water is from the steep 60km far with φ800mm steel pipe into the plant cistern. Due to long-distance transportation of water, the pressure loss is larger, and due to the water containing suspended solids, grass and other impurities are more likely to cause clogging, you can not use the average velocity measurement. Later switched to a single single-generation vortex flowmeter. However, when the flow rate is small, the columnar body can not generate a signal, nor does it solve this large diameter and low flow rate flow measurement