Efficient and energy-saving device for hydraulic station

Abstract

The invention relates to an efficient and energy-saving device for a hydraulic station. The device comprises a control cabinet, a hydrocylinder, a hydraulic control valve, an oil pump with a motor, a pressure gauge with an electric contact, an electromagnetic relief valve, an accumulator, a check valve and an intelligent control valve, wherein the intelligent control valve is arranged between theinlet of the oil pump and a hydraulic oil tank and connected with the hydraulic control valve through the accumulator; an oil return tubule which is communicated with the hydraulic oil tank is arranged on the oil pump; the check valve and the pressure gauge with the electric contact are arranged between the oil pump and the hydraulic control valve in turn; a pipeline between the check valve and the pressure gauge with the electric contact is communicated with the oil tank through the electromagnetic relief valve; and the intelligent control valve, the pressure gauge with the electric contact and the electromagnetic relief valve are all connected with the control cabinet. The device has the advantages that: the structure is simple; cooling equipment does not need to be added; the using cost is low; the control cabinet is matched with the intelligent control valve, so that the hydrocylinder is automatically boosted, and high-speed oil return is avoided and the oil pump can run in an unpowered mode continuously; the whole energy consumption is low; and the equipment runs safely, has a long service life and is environmental-friendly.

Description

technical field [0001] The invention relates to an energy-saving device for a hydraulic station, in particular to a high-efficiency energy-saving device for an intermittently working hydraulic station. Background technique [0002] At present, during the production period of the blast furnace hydraulic station, the hydraulic pump motor works 24 hours a day, or frequently starts work with heavy loads in a short period of time. On the one hand, it causes energy waste, and on the other hand, it reduces the service life of electrical components and hydraulic components. Frequent short-time working hydraulic pump motors cause large starting current of the motor, impact equipment, and serious energy waste; oil pumps deliver oil 24 hours a day or work repeatedly for short periods of time, and only about 20% of the oil output by the oil pump is sent to the working cylinder In addition, about 80% of the oil flows back to the fuel tank at high speed through the overflow valve, and abo...

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Problems solved by technology

[0003] In order to solve the problems of complex structure, high cost of use, high energy consumption and short service life of the equipment in the prior art, the present invention provides a hydraulic station with simple structure, no need to add cooling equipment, low cost of use, intermittent motor work, and High-efficiency energy-saving device of hydraulic station with low consumption and long service life

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