The invention discloses an integrated working solution filtering device and method for
electric spark electrolysis combined
machining, and belongs to the technical field of electromachining. The device comprises a device box body, and a multi-layer gradient composite filtering unit, an intelligent sensing and
control system and a self-cleaning subsystem which are arranged in the box body. The multi-layer gradient composite filtering unit is composed of a
rotational flow pre-separation part, a rigid precision filtering unit and a functional gradient
fiber coalescence filtering unit which are sequentially connected in series in the
working fluid flowing direction and used for synchronously removing
solid scraps generated by
electric spark machining and
hydroxide floccules generated by electrolytic
machining. The intelligent sensing and
control system monitors the
pollution degree and the
pressure difference of each filter unit in real time through a plurality of sensors, automatically triggers the self-cleaning subsystem according to preset logic, and respectively executes gas-liquid back flushing and bidirectional
water flow alternate cleaning on the rigid precision filter unit and the
fiber coalescence filter unit; and online maintenance of the key
filter element is realized. According to the invention, heterogeneous
pollutant filtering and intelligent self-cleaning functions are integrated into a single device, and the device has the advantages of high integration level, high filtering efficiency, convenience in maintenance, high process stability and the like.