A hydraulic substation oil circuit system

Abstract

The invention relates to an oil circuit system of a hydraulic substation, comprising a main oil circuit and an oil return circuit, the main oil circuit has a main oil inlet and a working oil inlet, and the oil return circuit has a working oil outlet and a main oil return port , there is a control oil circuit between the main oil circuit and the oil return circuit, the control oil circuit includes the main valve of the pressure reducing valve on the main oil circuit, and the main oil circuit is divided from the main valve of the pressure reducing valve and the main oil inlet The outlet is connected with a throttle valve, and the throttle valve is connected in series with an electromagnetic reversing valve. The electromagnetic reversing valve flows back into the oil return circuit through the first orifice; An overflow valve is connected, and the overflow valve returns to the oil return circuit; the main valve of the pressure reducing valve is connected with the accumulator through the second orifice, the accumulator, the second orifice, the electromagnetic reversing valve and the electromagnetic ball valve interconnected with each other. The oil circuit system of the hydraulic substation with this structure realizes the adjustable speed of the boosting and depressurizing process, thereby improving the service life of the hydraulic actuators and eliminating potential safety hazards.

Description

technical field [0001] The invention relates to an oil circuit system of a hydraulic substation, belonging to the technical field of hydraulic station control. Background technique [0002] In the hydraulic system, in addition to the oil source, hydraulic actuators and pipelines, there is also an intermediate device for processing large oil sources and simultaneously supplying multiple hydraulic actuators with different oil pressures, which is the hydraulic substation. [0003] The hydraulic substations in the prior art usually use pressure reducing valves to realize the adjustment of different oil pressures. Although the hydraulic substations with this structure are simple in structure and easy to produce, they also have some functional defects. During the initial debugging of the components, the oil pressure needs to work at a low pressure state, and the oil pressure needs to be at a high pressure state during normal operation. The simple pressure reducing valve adjustment...

AI Technical Summary

Problems solved by technology

[0003] The hydraulic substations in the prior art usually use pressure reducing valves to realize the adjustment of different oil pressures. Although the hydraulic substations with this structure are simple in structure and easy to produce, they also have some functional defects. During the initial debugging of the components, the oil pressure needs to work at a low pressure state, and the oil pressure needs to be at a high pressure state during normal operation. The simple pressure reducing valve adjustment is undoubtedly clumsy and cumbersome. During the pressure process, the sudden pressure increase and decrease will reduce the service life of the hydraulic actuators, and sometimes cause damage to the hydraulic actuators. At the same time, there are serious safety hazards.

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