Oil tank for treating hydraulic oil through magnetization, cyclone centrifugation, adsorption and rotating magnetic field

Abstract

The invention relates to an oil tank for treating hydraulic oil through magnetization, cyclone centrifugation, adsorption and a rotating magnetic field. An air filter is arranged on the top of the outside of an oil tank body, and a filtering tank, a permanent magnet, a partition and a heater are sequentially arranged inside the oil tank body; a first oil returning pipe is inserted into the oil tank body, connected with a U-type pipe and provided with a cooler and a temperature sensor; one end of a second oil returning pipe is connected to the first oil returning pipe, and the other end of the second oil returning pipe extends into the filtering tank; the U-type pipe is sequentially provided with a magnetization device, a cyclone centrifugation device, a first adsorption device, a rotating magnetic field device and a second adsorption device; a downwards-inclined defoaming board is installed on the top of the filtering tank; a layer of magnetic metal net is laid on the surface of the defoaming board; and an oil suction pipe is inserted into the oil tank body and provided with an oil filter, a magnetic eraser and a residual magnetism sensor. The mechanical, electrical, magnetic and other technologies are combined, so that solid particles are gathered to the pipe wall to be adsorbed and separate out or melt through air, the structure is simple, the cost is low, and the oil liquid purification capacity is high.

Description

【Technical field】 [0001] The invention relates to an oil tank in a hydraulic system, in particular to an oil tank which uses magnetization, swirl centrifugation, adsorption and rotating magnetic field to process hydraulic oil, and belongs to the technical field of hydraulic oil tanks. 【Background technique】 [0002] Statistics at home and abroad show that about 70% to 85% of hydraulic system failures are caused by oil pollution. Therefore, the pollution control of the hydraulic system has become a common concern of the hydraulic industry and various industrial sectors at home and abroad. Solid pollution and gas pollution are the two main forms of hydraulic pollution. [0003] Under the conditions of atmospheric pressure and room temperature, the oil contains about 9% of the volume of air, and a part of the air dissolves into the oil. This dissolved air will not affect the mechanical properties of the hydraulic system, the volume elastic coefficient and the viscosity of th...

AI Technical Summary

Problems solved by technology

[0008] 1. It is necessary to add a whole set of centrifugal device, the equipment is complicated, the cost is high, and it will bring secondary pollution to the oil at the same time

[0009] 2. The volume of the oil tank is large, and the oil has poor magnetic permeability. The strong magnetic magnet has a small force on the micron-sized particles in the oil, resulting in long adsorption time and poor adsorption effect.

[0010] 3. Some magnetized particles enter the hydraulic circuit and are adsorbed on the hydraulic components, causing component failure and difficult to clean and remove

However, since the air bubbles mixed into the return oil are small and the viscosity of the oil is relatively high, there is a problem that it takes a long time for the air bubbles to rise to the oil surface and disperse into the air, during which time the hydraulic device cannot work

However, the defoaming mechanism of the above-mentioned oil tank is natural defoaming, and there are still problems such as long defoaming time and low efficiency, especially for the working conditions with drastic flow changes.

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