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提出了一种采用电容传感器与文丘里管相结合测量单支管中气固两相流质量流量的新方法·通过电容传感器对固相浓度的测量,可以求出气固两相流的固气比,结合文丘里管上的差压信号,可以计算出相应气体单独流经文丘里管时所产生的差压,由此可以求得气体的质量流量,进而得出固相的质量流量·实测结果显示,测量误差小于33 % ·此方法不直接测量管道中气体的质量流量,而是通过测量浓度和差压信号来求得气固两相的流量值·此方法特别适用于不能直接测量气体流量的场合 支管流量的测量·
A new method for measuring the mass flow of gas-solid two-phase flow in a single pipe by using capacitance sensor combined with venturi was proposed. The solid-gas concentration of gas-solid two-phase flow can be obtained by measuring the solid- , Combined with the differential pressure signal on the Venturi tube can be calculated when the corresponding gas flow through the Venturi alone when the differential pressure can be obtained from the gas mass flow rate, and then come to the solid mass flow · The measured results Shows that the measurement error is less than 3.3%. This method does not directly measure the mass flow of the gas in the pipeline, but calculates the gas-solid two-phase flow rate by measuring the concentration and differential pressure signals. This method is especially suitable for measurements that can not be directly measured Gas Flow Measurement of branch flow