High-precision impulse plate flow meter

Abstract

The invention provides a high-precision impulse plate flow meter which comprises a blanking box with an upper feeding diversion trench, a lower discharge port and an inner oblique impulse plate, as well as a force transducer, and is characterized in that the oblique impulse plate is supported in the blanking box by a parallel hinge mechanism at the lower part of the oblique impulse plate and is connected with the force transducer outside the blanking box through a horizontal force transmission pushing rod at the side part of the oblique impulse plate in a matching way at the same time. Through the high-precision impulse plate flow meter, only horizontal component force which is generated in the horizontal direction and is in direct proportion to the flow rate is accurately transmitted to the force transducer so as to obtain an interference-free clear original flow rate signal; component force, eccentric impact torque and other interference forces in the vertical direction are transmitted by the parallel hinge mechanism to the bottom of the blanking box so as to be naturally balanced; the problem of zero drift caused due to tare weight change generated by damp sticky materials and the like is solved; and the high-precision impulse plate flow meter can stably work for a long time, and the actual measurement precision is within 1 percent.

Description

technical field [0001] The invention relates to a punching plate flowmeter, which is a punching plate flowmeter capable of continuous dynamic and high-precision measurement in the production process of industrial powder, and belongs to flow measurement and detection devices used in quantitative delivery of industrial powder. Background technique [0002] In industrial production, it is often necessary to dynamically and continuously measure the powder or fine bulk materials conveyed in the process, so as to achieve the purpose of precise quantification and control of powder or fine bulk materials. The existing punching plate or sliding plate flowmeter has the characteristics of simple structure and fast response, but due to structural defects in the force measuring mechanism and force sensing method, it is used in harsh environments such as humidity, high temperature and vibration. When the measured material passes through, it is easy to cause the mechanism to be damp and ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiency that the existing punching plate flowmeter is difficult to work stably for a long time in a harsh environment due to its unreasonable structure, the present invention provides a high-precision punching plate flowmeter that can still work stably for a long time in a harsh environment, and can meet dynamic The measurement error is kept stable at 1%

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