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基于差压测流原理设计出一种新型导叶式多点绕流流量计,并作为水泵的前置导叶安装于水泵进水流道出口位置.为验证流量计的可行性和稳定性,制作了新型流量计样机.结合扬州大学高精度水力机械试验台某泵站泵装置模型试验,进行了15种工况下的流量性能测试,流量覆盖范围为640~1 340m3·h-1.通过对流量计测量流量与实际流量的对比分析,证明该流量计原理科学,结构简单,安装方便,操作便利.
Based on the principle of differential pressure flow measurement, a new type of guide vane multi-point flowmeter is designed and installed as a guide vane at the outlet of the pump inlet.In order to verify the feasibility and stability of the flowmeter, A new type of flowmeter prototype was designed.According to the pumping unit model test of a pump station of the high precision hydraulic machinery test stand of Yangzhou University, the flow performance test was carried out in 15 conditions with the flow coverage of 640 ~ 1 340m3 · h-1. The comparative analysis of the flow rate measured by the flowmeter and the actual flow rate shows that the flowmeter has a scientific principle, a simple structure, convenient installation and convenient operation.