Filter adopting variable-structure work condition self-adaptive filtering, electrification and rotating magnetic field

Abstract

The invention relates to a filter adopting variable-structure work condition self-adaptive filtering, electrification and a rotating magnetic field. A filter, a U-shaped particle separation module, an oil return barrel and an outer barrel of the filter are sequentially arranged on a bottom plate; the filter is connected with the U-shaped particle separation module, and a variable-structure work condition self-adaptive filter is adopted as the filter; the U-shaped particle separation module comprises a U-shaped pipe which is sequentially provided with an electrification module, a separation module, a first adsorption module, a rotating magnetic field centrifugal module, a second adsorption module and a demagnetization module; the U-shaped particle separation module is connected with the upper portion of the oil return barrel through an oil inlet pipe of the oil return barrel; an inner barrel is arranged in 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 oil inlet pipe of the inner barrel; the oil inlet pipe of the inner barrel is located in the oil inlet pipe of the oil return barrel; and a filter element is arranged on the inner wall of the inner barrel. The filter adopting variable-structure work condition self-adaptive filtering, electrification and the rotating magnetic field has the multiple beneficial effects of being good in filtering performance, high in adaptability and integration performance, long in service life and the like.

Description

【Technical field】 [0001] The invention relates to a hydraulic oil filter, in particular to a filter using variable structure working condition self-adaptive filtering, electrification 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 remove solid parti...

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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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