Oil filtering device achieving full-band-working-condition self-adapted filtering, magnetization, adsorption and centrifugation

Abstract

The invention relates to an oil filtering device achieving full-band-working-condition self-adapted filtering, magnetization, adsorption and centrifugation. According to the oil filtering device achieving full-band-working-condition self-adapted filtering, magnetization, adsorption and centrifugation, a filter, a U-shaped particle separation module, an oil return barrel and an external barrel are sequentially arranged on a base plate; the filter is connected with the U-shaped particle separation module, and the full-band-working-condition self-adapted filter is adopted; the U-shaped particle separation module comprises a U-shaped pipe, and a temperature control module, a magnetization module, a mechanical centrifugation module, an adsorption module and a demagnetization module are sequentially installed on the U-shaped pipe; the U-shaped particle separation module is connected with the upper portion of the oil return barrel through an oil return barrel oil inlet pipe; an inner barrel is arranged inside the outer barrel and installed on an end cover; a spiral flow channel 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 inside the oil return barrel oil inlet pipe and extends into the center of the U-shaped particle separation module; and a filter element is arranged on the inner wall of the inner barrel. The oil filtering device achieving full-band-working-condition self-adapted filtering, magnetization, adsorption and centrifugation has the advantages of being good in filtering performance and adaptability, high in integration, long in service life and the like.

Description

[0001] 【Technical field】 [0002] The invention relates to a hydraulic oil filter, in particular to an oil filter with adaptive filtering, magnetization, adsorption and centrifugation under full-frequency operating conditions, and belongs to the technical field of hydraulic equipment. [0003] 【Background technique】 [0004] 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. [0005] Filters are key components of hydraulic systems t...

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Problems solved by technology

[0006] 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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