Exhaust device for low-pressure side of oil pump and using method

Abstract

The invention discloses an exhaust device for the low-pressure side of an oil pump and a using method. The exhaust device comprises the oil pump, the exhaust end of the low-pressure side of the oil pump is connected with a gas storage container, an exhaust port is formed in the gas storage container, an exhaust valve is arranged on the exhaust port, a liquid level position sensor is arranged in the gas storage container, an oil level indicator is arranged on the gas storage container, and the liquid level position sensor and the exhaust valve are in electric signal connection with a controller. The high-pressure side of the oil pump communicates with an oil tank. By arranging the gas storage container connected with the exhaust port of the low-pressure side of the oil pump, a large amountof gas generated in the oil pump working for a long time is conveniently exhausted, and the problem that stable operation of equipment is affected due to unstable pressure of a high-pressure oil way is avoided. An automatic exhaust device is arranged, so that the whole exhaust process can be automatically carried out. The defect that the pressure of a high-pressure loop cannot be established is overcome, the problem that manual regular exhaust is needed is avoided, the maintenance workload is reduced, and the safety and reliability of the equipment are improved.

Description

technical field [0001] The invention relates to the technical field of hydraulic systems, in particular to a device for discharging condensed gas in an oil pump. Background technique [0002] Due to the large temperature difference between day and night, the viscosity of the oil in the hydraulic system will also change accordingly, which will lead to the continuous generation of tiny air bubbles in the oil. Once these air bubbles gather together and condense in the oil pump, it will It will lead to instability of the whole system. [0003] At the same time in the hydraulic system, the oil in the oil tank is in contact with the air. When the hydraulic oil flows, a small amount of air is brought into the oil circuit, and the air circulates with the oil to the oil pump or enters the high-pressure oil circuit through the oil pump. It is easy to cause the oil pump to pressurize overtime, so that the equipment cannot establish high-pressure oil pressure, or directly cause the pr...

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Problems solved by technology

[0004] The object of the present invention is to provide an exhaust device for the low-pressure side of the oil pump and its use method, so as to solve the problem that part of the air carried in the oil tank is not easy to exhaust in the hydraulic system

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