Solid-liquid interface discharge mode discrimination method for high-voltage pulse solid material smashing

Abstract

The invention discloses a solid-liquid interface discharge mode discrimination method for high-voltage pulse solid material smashing, and the method comprises the steps: firstly carrying out the high-voltage pulse breakdown test of a liquid insulating medium; secondly carrying out the high-voltage pulse breakdown test of a solid medium in a corresponding liquid environment, and obtaining load voltage and current waveform data of two ends of an electrode; thirdly carrying out feature extraction according to voltage breakdown time delay of a breakdown process and the resistor attenuation coefficient of the breakdown process, and obtaining two independent features through data processing; finally carrying out size comparison and outputting a discrimination result. The method solves a difficulty in discriminating the pulse smashing discharge mode, is accurate and efficient in discrimination, and is of great significance to the improvement of solid breakdown probability and smashing efficiency and the reduction of the negative impact.

Description

technical field [0001] The invention belongs to the technical field of high-voltage discharge solid material crushing, in particular to a solid-liquid interface discharge mode discrimination method for high-voltage pulse solid material crushing. Background technique [0002] The high-voltage pulse discharge crushing solid material technology was initially applied to the crushing of lunar rock samples due to its advantages of maintaining the original shape of solid materials. After decades of development, it has been applied to actual production in Russia, the United States, and Germany. The fields of application are oil drilling, stone cutting, building surface removal, pollution-free crushing of high-purity materials, and crushing of human stones. [0003] However, solid breakdown is a statistical probability event, and the probability of breakdown discharge inside the solid medium can be increased by adjusting the pulse electrical parameters. The crushing process is expe...

AI Technical Summary

Problems solved by technology

This requires real-time monitoring of the voltage and current waveforms under the action of each pulse in the continuous operation process to judge its discharge mode, so as to correct the electrical parameters of the high-voltage pulse applied, so as to control the probability of the internal discharge mode of the solid medium at a higher level In order to ensure the maximization of operating efficiency and the minimization of energy consumption and negative impact on the surrounding medium, there is no accurate and effective method for identifying the discharge mode of the solid-liquid interface at this stage.

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