Intelligent air discharge system for hydraulic system pump front low-pressure end

Abstract

The invention discloses an intelligent exhaust system used for a low-pressure end in front of a pump in a hydraulic pressure system, which comprises the pump and an air vessel, wherein, a manual air outlet is arranged at the low-pressure end in front of the pump, and the air vessel is arranged at the postion higher than the pump and lower than a liquid storage tank. The air vessel is connected with the manual air outlet and provided with an air outlet while the air outlet is connected with an exhaust valve. The air vessel is internally provided with a high and low liquid level sensor, and the exhaust valve and the high and low liquid level sensor are connected with a control module while the control module is connected with a monitoring indication module and a failure indication module. The technical proposal of the invention utilizes the principle that air specific weight is smaller than liquid specific weight to intensively collect the air in a low-pressure loop in front of the pump into the air vessel and automatically exhaust according to the condition of air reserve, thus avoiding the blind and regular manual exhaust, greatly reducing the contact frequency of workers with high risk equipment and high risk environments and greatly reducing the rate of serious accident.

Description

technical field [0001] The invention belongs to the technical field of hydraulic pressure, in particular to an intelligent exhaust system used for exhausting the low-pressure circuit before the pump. Background technique [0002] In the hydraulic system, the hydraulic medium in the low-pressure fluid storage tank is often in contact with air. When the hydraulic medium flows in the hydraulic circuit, a small amount of air is often brought in, especially when the hydraulic pump is circulating, it is easier to bring air into the hydraulic medium. , This will cause gas-liquid miscibility in the high-pressure circuit of the hydraulic pump, which will easily make the pressure of the high-pressure circuit unstable, resulting in unstable movement of the power mechanism, and may cause serious accidents in important systems that require stability, safety and reliability. Such as high-voltage power system, petrochemical high-risk environment system, etc. In the prior art, a manual exh...

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Problems solved by technology

[0013] In order to effectively, thoroughly and conveniently solve the problem of equipment failure caused by gas generated at the low-pressure end in front of the pump in the hydraulic system and ensure the normal operation of the hydraulic system, the purpose of this invention is to provide an intelligent exhaust system for the low-pressure end of the pump in the hydraulic system. The air device is set at a position higher than the pump and lower than the liquid storage tank, and is connected to the low-pressure end of the pump. Using the principle t

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