A hydraulic oil tank with oil-water separation

Abstract

The invention relates to an oil-water separated hydraulic oil tank. An oil-return area is provided with an-oil return barrel, the oil-return barrel is provided with an opening, and the opening is welded with a diffusing device enabling return oil to overflow and uniformly disperse. During the operation of the oil tank, oil in the oil barrel flows to the diffusing device via the opening at a barrel wall, oil liquid is expanded to a plane, and the speed of the oil is reduced; when the return oil flows downwardly to a separating plate from the diffusing device, bubbles are reduced, the convection stability of the oil liquid in the oil-return area is maintained, the oil-return area of the oil-return barrel and a tank body surface opposite to the separating plate is connected with the whole oil-return area, certain cycle is participated in, the liquid level tends to a stationary state, oil and water can be effectively separated in a static manner, and a return-blocking strip arranged at the lower side of the oil-return area blocks water deposited at the bottom of the tank; and when a drainage valve is opened, water can be drained from the drainage valve. According to the oil-water separated hydraulic oil tank, bubbles in the oil liquid entering an oil-suction pipe and a system can be effectively reduced, water in the processes of pumping, injection and usage can be effectively separated, and the stability of the hydraulic system is well improved.

Description

technical field [0001] The invention relates to a circulating oil tank, in particular to a hydraulic oil tank for oil-water separation. Background technique [0002] At present, the oil suction and oil return of the oil tank are the oil inlet and outlet channels of the system. The oil out of the oil suction pipe returns to the tank through the oil return pipe. The oil tank is separated into two parts by the partition, and the height of the partition is higher than the oil liquid level. The air bubbles generated during the oil return process are isolated by the separator and stay on the oil return side of the separator, and the oil without air bubbles flows into the non-bubble side of the separator through the through hole in the lower part of the separator to form the circulation of the oil. This structure can effectively prevent air bubbles in the oil from entering the oil suction pipe and entering the system. Due to the water vapor in the atmosphere, water immersion durin...

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Problems solved by technology

Due to the water vapor in the atmosphere, water immersion during storage, transportation, pumping and use, appears in the form of dissolved water, free water and emulsified water in the oil, this phenomenon has caused a huge impact on the stability of the hydraulic system Therefore, a drain valve is installed at the lower part of the fuel tank body. The function of the drain valve is to manually drain the water after the oil-water separation in the fuel tank. However, this drainage method requires a good oil-water separation environment. At present, this kind of fuel tank In the working state, due to the characteristics of the hydraulic system, the oil in the oil return tank is in a violent tumbling state, and the water is always mixed in the oil, which cannot be completely separated from the oil and water, so the effect is not good.

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