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The hydraulic power pump station is a pump station that provides hydraulic power in the hydraulic system. It generally uses hydraulic oil that meets the requirements of the hydraulic system as the medium. The original power (motor or other power) passes through the pump (vane pump, gear pump, rotary pump, Plunger pump, etc.) send out the medium that meets the required flow and pressure for use in the hydraulic system. The medium of hydraulic power pump station is generally used in circulation, so it is equipped with cooling system, filter system, pressure regulating system, safety barrier system, flow regulation system, pressure and temperature indication, valve control system and medium (oil) storage Boxes, and some are also equipped with energy storage devices. Introduction to working principle: After the hydraulic pressure from the hydraulic pump driven by the motor is reduced to the working pressure by the pressure reducing valve, it is connected to the hydraulic pipeline through the oil outlet to provide hydraulic driving force for the hydraulic cylinder of the hydraulic control valve group. The oil return Jing hydraulic pipeline of the hydraulic cylinder returns to the oil return port of the pump station, and returns to the oil tank after passing through the oil return filter. In order to improve the reliability of the hydraulic pump station, the hydraulic system adopts the configuration form of double electromechanical pump sets and accumulators. The two electromechanical pump sets can be used as backups for each other and work interlocking. In the event of a motor or pump failure, the hydraulic system can store energy The device can continue to provide suitable hydraulic driving force to ensure the opening and closing of important valves in the hydraulic control valve group. The basic principles and requirements of hydraulic power pumping station design: the hydraulic transmission system is an integral part of hydraulic machinery, and the design of the hydraulic transmission system should be carried out simultaneously with the overall design of the main engine. When starting the design, we must start from the actual situation, organically combine various transmission forms, give full play to the advantages of hydraulic transmission, and strive to design a hydraulic transmission system with simple structure, reliable work, low cost, high efficiency, simple operation and convenient maintenance. There is no strict sequence for the design steps of the hydraulic system, and the steps are often carried out through each other. Generally speaking, after clarifying the design requirements, proceed roughly as follows.
(1) Clarify the requirements for the use of the hydraulic system and analyze the load characteristics;
(2) Design the hydraulic system scheme;
(3) Calculate the main parameters of the hydraulic system;
(4) Draw the working principle diagram of the hydraulic system;
(5) Select hydraulic components;
(6) Check and calculate the performance of hydraulic system;
(7) Structural design of hydraulic device;
(8) Draw work diagrams, prepare documents, and propose electrical system design tasks.