Mobile multi-point measuring device and measuring method for gas-solid fluidized bed multiphase flow parameters

Abstract

The invention discloses a measuring method of a mobile multi-point measuring device for multiphase flow parameters of a gas-solid fluidized bed. The measuring method comprises the following steps: determining the measuring range of a probe in horizontal and vertical directions and moving distance during probe measurement; turning a vertical operating panel, so as to shift a probe hole to a lowest position within the measuring range, turning a horizontal operating panel, so as to shift the probe hole to a position on the axis of the fluidized bed, recording displacement reading value, corresponding to the position, on a measuring device, and taking the point as an initial datum point for probe measurement; then, loosening left and right clamping pieces, turning the vertical operating panel, lifting the probe by delta y mm, and turning the horizontal operating panel leftward or rightward by delta x mm, so as to ensure that the coordinate of the probe is (x0+delta x, y0+delta y) and is positioned at a second measuring point; repeating the steps, so as to accomplish the measurement of target parameters of all measuring points within the measuring range. The method has the advantages that the measurement cost is low, the method is accurate in measurement, and a single probe is adopted to perform multi-point measuring of multiphase flow parameters in the gas-solid fluidized bed.

Description

technical field [0001] The invention relates to a mobile multi-point measuring device and a measuring method for multiphase flow parameters of a gas-solid fluidized bed. Background technique [0002] The gas-solid fluidized bed has the advantages of sufficient gas-solid mixing, high heat and mass transfer rate, and fast chemical reaction rate, so it has been widely used in chemical industry, energy, environment and petroleum industry, such as catalytic reaction, coal gasification and Combustion, waste disposal, gas purification, coating and granulation processes, etc. The parameters of gas-solid multiphase flow in the bed directly and fully reflect the operating characteristics and status of the fluidized bed equipment. Accurate measurement of these parameters is a prerequisite for theoretical research and process development of gas-solid fluidization, and it is also the test and improvement of the fluidized bed. It is an important means to design and improve the operation ...

AI Technical Summary

Problems solved by technology

However, the disadvantage of using probe array measurement is that the space is limited when multi-probes are arranged, the coexistence of multiple probes has a great impact on the parameter field in the bed, and the cost of using multiple probes is high.

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