基于蝶阀摆动的叶片式流量波动发生器的设计

流量计测量需在一个相对稳定的环境,而实际测量中管路产生的流量波动对流量计的测量结果产生影响.为了研究不同流量波动对管路测量结果的影响,设计了一台叶片式流量波动发生器,通过电机带动蝶阀阀门来回摆动,在管路中形成一个流量波动.该发生器通过改变电机的摆动频率和摆动角度产生不同的流量波动来模仿水流量系统中可能产生的流量波动.实验证明,该波动发生器所产生的流量波动能够沿着管路上下游进行传播,且在改变发生器摆动频率与摆角时所产生的流量波动也会随之改变.

Research onevane-type flow fluctuation generator based on butterfly bamper

The measurement of a flowmeter needs to be in a relatively stable environment, and flow fluctuation produced by a pipeline in actual measurement has an impact on measurement results of the flowmeter. In order to investigate the influence of different flow fluctuations on the measurement results of the pipeline, a blade-type flow fluctuation generator is designed in this paper, which drives a butterfly valve to swing back and forth through a motor to form the flow fluctuation in the pipeline. The generator can change the oscillation frequency and swing angle of the motor to produce different flow fluctuations and imitate the flow fluctuations that may occur in a water flow system. Our experiments have demonstrated that the flow fluctuation generated by the blade-type flow fluctuation generator can propagate along upstream and downstream of the pipeline, and the flow fluctuation will also varies as the oscillation frequency and swing angle of the generator are changed simultaneously or individually.