Experimental Study of a Novel Gas-solid Two-phase Fluid Average Flow Speed Measuring Meter

To solve the problem to real-time and accurately measure the average flow speed of a gas-solid two-phase flow in a pipeline,developed was a novel gas-solid two-phase flow average flow speed measuring meter and a relative secondary measurement system based on a direct measurement mode.To further study the performance of the meter and continuously improve its design structure,a gas-solid two-phase flow test system was set up.Relevant experimental study of the performance of the measuring meter was conducted.The test and on-site applications show that the meter has a good performance and can realize a long-period,stable and accurate measurement of the average flow speed of the gas-solid two-phase flow in an industrial pipeline with the measurement error being 2%.The straight tube section required for installation at the site is short.The meter has a small flow resistance and a long service life,capable of meauring the average flow speed of a gas-solid phase flow at a high and low concentration.It can be installed and used in a pipeline with a round and rectangular section.It has obtained the national invention and patent as well as the provincial and ministry-level science and technology advancement prize and has got good applications in tens of utility boilers.