Constant-pressure oil tank capable of realizing gas-liquid separation and control method

Abstract

The invention discloses a constant-pressure oil tank capable of realizing gas-liquid separation and a control method. The constant-pressure oil tank capable of realizing gas-liquid separation comprises an oil tank body and a pressure regulation system used for actively regulating pressure fluctuation of oil in the oil tank body. The pressure regulation system comprises a pressure regulation and control system used for regulating the pressure of the oil, a controller used for controlling the pressure regulation and control system, and a supercharger connected with the oil tank body and the pressure regulation and control system to achieve a pressure transmission and regulation function. The supercharger comprises a high-pressure cavity and a low-pressure cavity, wherein the high-pressure cavity and the low-pressure cavity are connected with the pressure regulation and control system and the oil tank body. By the adoption of the constant-pressure oil tank capable of realizing gas-liquidseparation, the problem of pressure fluctuation of a traditional oil tank under a moving condition can be effectively solved; and meanwhile, oil-gas separation is realized, so that oil oxidization iseffectively prevented.

Description

technical field [0001] The invention relates to a pressure oil tank, in particular to a gas-liquid separation type constant pressure pressure oil tank and a control method, belonging to the technical field of hydraulic transmission and control. Background technique [0002] Closed oil tanks are divided into isolated oil tanks and pressurized oil tanks, which are widely used in hydraulic systems such as walking machinery, underwater machinery, turning equipment, ships, and aircraft, which greatly improves the ability of equipment to adapt to complex environments and complex working conditions, and improves the hydraulic system. control performance. The pressure oil tank is also called the air-filled oil tank. The compressed gas with a pressure higher than the atmospheric pressure is filled in the oil tank, which improves the self-priming ability of the oil pump in the hydraulic system and effectively prevents the phenomenon of cavitation. According to whether the liquid is i...

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Problems solved by technology

[0003] The technical problem to be solved in the present invention is to provide a gas-liquid separation constant pressure oil tank and its control method, which can maintain the constant pressure of the oil tank through active regulation means, solve the pressure fluctuation problem of the pressure oil tank under complex movement, and realize the constant pressure control of the oil tank, which can Realize oil and gas separation, effectively prevent oil oxidation and cavitation

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