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Energy-saving control method for hydraulic unit driving system

A hydraulic unit, energy-saving control technology, applied in the direction of presses, manufacturing tools, etc., can solve the problem that the installed power of the hydraulic machine is difficult to match the actual power demand, and it is difficult to solve the problem of idle operation of the motor pump set in standby and small flow demand, etc. Achieve the effects of improving implementation flexibility, improving time utilization, and improving work efficiency

Active Publication Date: 2014-12-03
HEFEI UNIV OF TECH
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Problems solved by technology

[0004] Although the above-mentioned various energy-saving technologies have improved the energy efficiency of the system to a certain extent, it is difficult to solve the problem of dry running of the motor pump set caused by the high proportion of standby time and small flow demand, and the installed power of the hydraulic machine is difficult to match the actual power demand. well matched question

Method used

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  • Energy-saving control method for hydraulic unit driving system

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Embodiment Construction

[0019] The energy-saving control method for the drive system of the hydraulic unit in this embodiment is as follows: centrally arrange multiple hydraulic machines with the same installed power, establish a clustered hydraulic unit, set the only pump station as the power source of the hydraulic unit, Divide a pumping station into different power areas, and the different power areas are: descending area, pressing area, holding pressure area, return area and auxiliary area; the descending area is used to provide the required flow and pressure for the hydraulic press to go down ;The pressing area is used to provide the flow and pressure required for the forming and pressing function of the hydraulic press; the holding area is used to provide the flow and pressure required for maintaining the pressure of the hydraulic press; the return area is used to provide the flow and pressure required to realize the return of the hydraulic press; the auxiliary area is used to provide The flow a...

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Abstract

The invention discloses an energy-saving control method for a hydraulic unit driving system. The energy-saving control method is characterized in that multiple hydraulic machines with the same installed power are distributed in a concentrated manner, a cluster type hydraulic unit is established, one pump station is arranged to serve as the only power source of the hydraulic unit and is divided into different power areas according to the hydraulic system process takt, and under the premise that only one hydraulic machine is in a pressing stage at any moment in a unit working cycle period, time span of other work conditions of each hydraulic machine is adjusted, so that time share of cells of the power areas is achieved for the multiple hydraulic machines. The energy-saving control method can increase the working efficiency of the hydraulic unit effectively, reduce the using number of motors and hydraulic pumps, and reduce the manufacture and use costs of the hydraulic unit driving system.

Description

technical field [0001] The invention relates to a hydraulic system control method, in particular to an energy-saving control method for a hydraulic unit drive system, which is used to realize the time-sharing sharing of multiple hydraulic machines for each unit in a power zone. Background technique [0002] In the context of global warming, the "low-carbon economy" based on low energy consumption and low pollution has become the focus of global attention. A hydraulic press is a device that uses hydraulic transmission technology for pressure processing. It is widely used in different industrial fields in the production of product forming. Relevant data show that more than 70% of metal materials in the world must be processed into products through deformation. In 2008, my country's steel output It is 585 million tons, which means that the steel processing volume of the metal forming industry is 390 million tons. The working process of the hydraulic system has the characteristi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B15/16
Inventor 刘志峰赵凯李新宇李磊高梦迪钟军
Owner HEFEI UNIV OF TECH
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