Oil filtering system adopting full-band filtering, electrifying, separating, adsorbing and centrifuging

Abstract

The invention relates to an oil filtering system adopting full-band filtering, electrifying, separating, adsorbing and centrifuging. A filter, a U-shaped particle separation module, an oil returning barrel and an outer barrel of the oil filtering system are sequentially arranged on a bottom plate. The filter is connected with the U-shaped particle separation module, and a full-band filter is adopted as the filter. The U-shaped particle separation module comprises a U-shaped pipe. An electrification module, a separation module, a first adsorption module, a mechanical centrifuge module, a second adsorption module and a demagnetization module are sequentially arranged on the U-shaped pipe. The upper portion of the U-shaped particle separation module and the upper portion of the oil returning barrel are connected through an oil returning barrel oil inlet pipe. An inner barrel is arranged in the outer barrel and installed on an end cover. A spiral runner is contained in the inner barrel and connected with the U-shaped particle separation module through an inner barrel oil inlet pipe. The inner barrel oil inlet pipe is located in the oil returning barrel oil inlet pipe. A filter element is arranged on the inner wall of the inner barrel. The oil filtering system has the multiple beneficial effects that the filtering performance is good, adaptability and integrity are high, and the service life is long.

Description

【Technical field】 [0001] The invention relates to a hydraulic oil filtering system, in particular to an oil filtering system adopting full frequency band filtering, electrification, separation, adsorption and centrifugation, 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...

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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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