Device for measuring static electricity in real time, pneumatic conveying experiment system and experiment method

Abstract

The invention provides a device for measuring static electricity in real time, a pneumatic conveying experiment system and an experiment method. The device for measuring the static electricity in realtime comprises a measuring tube section, wherein the measuring tube section comprises an inner tube, an inner cavity of the inner tube forms a conveying passage for conveying particles, a film unit is laid on the outer wall of the inner tube, a conductive adhesive unit is laid on the outer wall of the film unit, a first copper electrode sleeve sleeves the outer wall of the conductive adhesive unit, an insulating adhesive unit is laid on the outer wall of the first copper electrode sleeve, and the outer wall of the insulating adhesive unit is sleeved with a second copper electrode sleeve; andthe inner tube, the first copper electrode sleeve and the second copper electrode sleeve are coaxially arranged, and the first copper electrode sleeve, the insulating adhesive unit and the second copper electrode sleeve form a guiding system. According to the device, the induced current generated by friction in the pneumatic conveying process can be measured on line in real time, the measurement precision is high, and the stability of the induced current generated in the measurement process is improved.

Description

technical field [0001] The invention relates to the technical field of pneumatic conveying, in particular to a device for measuring static electricity in real time, a pneumatic conveying experimental system and an experimental method. Background technique [0002] Pneumatic conveying experimental system is widely used in energy, chemical, pharmaceutical and other industries, as well as the transportation of granular materials in material processing. In the pneumatic conveying experimental system, due to the collision and friction between the surfaces of different materials, the particles and the system pipe wall tend to acquire electrostatic charges. The accumulation of charge on system components is accompanied by the danger of discharge of charge at any time, and the existence of static electricity in the system seriously affects the particle transmission efficiency. Therefore, it is particularly important to measure the static electricity in the pipeline in real time and...

AI Technical Summary

Problems solved by technology

The known electrostatic measurement methods are greatly affected by various environmental conditions, and the reproducibility of the measurement results is poor. The general requirements for these measuring instruments are that the input impedance should be high, the input capacitance should be small, and the test connection must be connected to the ground. have high insulation resistance

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