Oil filtering device adopting variable structure filtration, electrification, separation, adsorption and rotation magnetic field

Abstract

The invention relates to an oil filtering device using variable structure filtering, electrification, separation, adsorption and rotating magnetic field. The filter, U-shaped particle separation module, oil return cylinder and outer barrel are placed on the bottom plate in sequence; the filter and U The U-shaped particle separation module is connected with a variable structure filter; 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, a first adsorption module, a rotating magnetic field centrifugal module, and a second The adsorption module and the degaussing module; the U-shaped particle separation module and the upper part of the oil return cylinder are connected through the oil return pipe of the oil return cylinder; the inner cylinder is placed in the outer barrel, which is installed on the end cover; It is connected with the U-shaped particle separation module through the oil inlet pipe of the inner cylinder; 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 variable structure filtering, electrification, separation, adsorption and rotating magnetic field, 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 r...

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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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