Closed type recycle washing device for pipeline of hydraulic system

Abstract

The invention discloses a closed type recycle washing device for a pipeline of a hydraulic system. The closed type recycle washing device comprises an oil washing pipe (1), an oil return pipe (2), a to-be-washed system (16), motors (5) and oil pumps (6); the oil washing pipe (1) is provided with the oil pumps (6) which is driven by the motors (5), the output ends of the oil pumps (6) are sequentially connected with pressure gages (7), a ball valve (8), filters (9), a ball valve (10) and a ball valve (11); the ball valve (11) is connected with one end of the to-be-washed system (16) through oil-resistant rubber hoses (12); the oil return pipe (2) sequentially passes through a ball valve (13), a ball valve (14), the filters (9), the pressure gages (7), an air cooler (15) and a ball valve (3) to be communicated with the input ends of the oil pumps (6); the ball valve (3) and the ball valve (10) are arranged on the side face of the oil washing pipe (1), and the ball valve (14) is arranged on the side face of the oil return pipe (2). The closed type recycle washing device has the advantages that the oil capacity used for washing is saved, the oil washing time is saved, the oil washing efficiency is improved, the on-site arrangement and conveying are convenient, the structure is simple, and the cost is saved.

Description

technical field [0001] The invention relates to the field of hydraulic system flushing, and more specifically relates to a hydraulic system pipeline closed circulation flushing device. Background technique [0002] At present, the design of domestic oil flushing devices adopts the oil pump and the oil tank to return the oil to the oil tank through the pipeline for open circulation. In the prior art, the suction inlet of the oil pump is higher than the bottom of the oil tank. In order to ensure that the oil pump does not pump air, it is generally required that the lowest liquid level of the oil tank is 75mm higher than the pump inlet or 1.5 times the pipe diameter, whichever is greater. This increases the flushing time for the oil flushing at the lowest liquid level of the oil tank, and because the liquid level of the pump port is higher than the bottom of the oil tank, after the oil returns to the oil tank, some impurities mixed in the oil will be deposited at the bottom of ...

AI Technical Summary

Problems solved by technology

This increases the flushing time for the oil flushing at the lowest liquid level of the oil tank, and because the liquid level of the pump port is higher than the bottom of the oil tank, after the oil returns to the oil tank, some impurities mixed in the oil will be deposited at the bottom of the oil tank, which is not conducive to rinse

At the same time, because the washing station needs to be frequently transported to different construction sites, the size of the washing station is large, and the oil consumption is large, which makes it difficult to arrange the washing station on site and transport

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