Automatic sand discharging inspection device and method for sand supply tank of high-pressure water jet cleaning equipment

Abstract

The invention discloses an automatic inspection device and method for sand discharging of a sand supply tank of high-pressure water jet cleaning equipment, the device comprises a plurality of sensors, a measuring bridge and an inspection device, and the plurality of sensors are correspondingly arranged at sand discharging ports of the sand supply tank; the measuring bridge is used for being communicated with the corresponding sensor according to the gating control of the inspection device so as to obtain the instantaneous inductance value of the corresponding sensor; the inspection device is used for controlling the measuring bridge to automatically and circularly measure the gated sand discharging ports in sequence; the instantaneous inductance value of the corresponding sensor is obtained; and the instantaneous inductance value is compared with a pre-calibrated initial inductance value of the corresponding pipe orifice, whether the corresponding sand discharging opening is blocked or not is judged according to whether the change value of the instantaneous inductance value of the sensor exceeds a threshold value or not, and if the sand discharging opening is blocked, an alarm signal corresponding to the sand discharging opening is lightened. According to the invention, automatic routing inspection of the multi-path sand discharging port is realized.

Description

technical field [0001] The invention relates to the technical field of metal surface cleaning, in particular to a real-time detection device and method for clogging the lower sand opening of a sand supply tank in abrasive high-pressure water jet metal surface cleaning equipment. Background technique [0002] High-pressure water jet metal surface cleaning is a green, non-polluting pure physical surface cleaning technology. [0003] The sand supply tank is an important part of the water jet cleaning equipment. It contains metal abrasives, and the metal abrasives are mixed with high-pressure water through the sand outlet. Due to the influence of factors such as hardening, rusting, abnormal system pressure, etc. of the abrasive, the sand outlet of the sand supply tank is prone to the abrasive blockage. In the process of high-pressure water jet metal surface cleaning, the flow of abrasive in the mixture has strict requirements, and the reduction of abrasive concentration will se...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a high-pressure water jet cleaning equipment and an automatic sand inspection device and method for sand feeding tanks, which are used to solve the technical problems that the workload of manual inspection is huge, and the accuracy and real-time performance are difficult to guarantee

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