Oil filtering device adopting working-condition self-adaptive filtering, electrification, separation and adsorption

Abstract

The invention relates to an oil filter device with self-adaptive filtering, electrification, separation and adsorption of working conditions. The filter, U-shaped particle separation module, oil return cylinder and outer barrel are sequentially placed on the bottom plate; the filter and U-shaped The particle separation module is connected; the U-shaped particle separation module includes a U-shaped tube, and the U-shaped tube is sequentially installed with an electrification module, a separation module, an adsorption module and a degaussing module; the U-shaped particle separation module and the oil return cylinder pass through a loop The oil inlet pipe of the oil barrel is connected; the inner barrel is placed in the outer barrel, which is installed on the end cover through a top plate and several bolts; the spiral flow channel is accommodated in the inner barrel, and the U-shaped particle separation module is passed through an inner barrel. The oil pipe is connected; the oil inlet pipe of the inner cylinder is located in the oil inlet pipe of the oil return cylinder, and extends into the center of the U-shaped particle separation module; the filter element is arranged on the inner wall of the inner cylinder. The invention has many advantages such as good filtering performance, high adaptability and integration, long service life and the like.

Description

【Technical field】 [0001] The invention relates to a hydraulic oil filtering device, in particular to an oil filtering device using working condition self-adaptive filtering, electrification, separation and adsorption, and belongs to the technical field of hydraulic equipment. 【Background technique】 [0002] Statistics at home and abroad show that about 70% to 85% of hydraulic system failures are caused by oil pollution. Solid particles are the most common and harmful pollutants in oil pollution. Hydraulic system failures caused by solid particle pollutants account for 70% of total pollution failures. Metal debris accounts for 20% to 70% of the particle pollutants in hydraulic system oil. Taking effective measures to filter out the solid particle pollutants in the oil is the key to the pollution control of the hydraulic system, and it is also a reliable guarantee for the safe operation of the system. [0003] Filters are key components of hydraulic systems to remove solid ...

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Problems solved by technology

[0004] However, the high-pressure filter used in the existing hydraulic system has the following deficiencies: (1) various hydraulic components have different requirements for the cleanliness of the oil, and the particle sizes of the solid particles in the oil are also different. This requires the installation of many different types of filters at different positions in the hydraulic system, which brings about problems of cost and installation complexity; (2) The filter in the hydraulic system mainly adopts the filter cake filter method, and the filtrate is perpendicular to the The surface of the filter element flows, and the intercepted solid particles form a filter cake and gradually thicken, and the filtration speed gradually decreases until the filtrate stops flowing out, which reduces the service life of the filter element

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