A constant pressure variable pump system and energy saving method

A technology of constant pressure variable pump and oil supply system, which is applied in the direction of fluid pressure actuators, servo motors, mechanical equipment, etc., which can solve the problems of reducing oil life and wasting energy, so as to prolong oil life and reduce energy waste , to achieve the effect of individual control

Active Publication Date: 2017-09-08
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is: when the external pump station does not need to supply oil, the oil discharged by the hydraulic pump just meets the leakage (internal leakage) of the hydraulic pump, which wastes energy and causes the oil to heat up and deteriorate, reducing the life of the oil

Method used

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  • A constant pressure variable pump system and energy saving method
  • A constant pressure variable pump system and energy saving method

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings, but it should be pointed out that the implementation of the present invention is not limited to the following embodiments.

[0023] See figure 2 , the constant pressure variable pump system is composed of several pump units, and each pump unit is connected to the oil supply system. The pump unit is composed of a constant pressure variable pump, a control slide valve, an overflow valve, Valve, check valve, ball valve 1, ball valve 2, and ball valve 3 are composed of constant pressure variable pump, overflow valve, check valve, ball valve 1, and oil supply system in sequence. The constant pressure variable pump is connected with control slide valve, overflow The opening and closing of the flow valve is controlled by the hydraulic reversing valve, the control slide valve is connected to the oil supply system through the second ball valve, and the hydraulic reversing valv...

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Abstract

The invention relates to a constant pressure variable pump system and an energy-saving method. It is composed of several pump unit units, each of which is connected to an oil supply system. The pump unit consists of a constant pressure variable pump, a control slide valve, Relief valve, electromagnetic reversing valve, check valve, ball valve 1, ball valve 2, and ball valve 3 are composed of constant pressure variable pump, overflow valve, check valve, ball valve 1, and the oil supply system are connected in sequence, and the constant pressure variable pump is connected in sequence. A control spool valve is connected, the overflow valve is controlled on and off by an electromagnetic directional valve, the control spool valve is connected to the oil supply system through ball valve 2, and the electromagnetic directional valve is connected to the oil supply system through ball valve 3 and ball valve 2 in turn. The advantages of the present invention are: through the improvement of the pump unit and the addition of ball valves, the single control of the pump unit is realized; through the improvement of the control process, the energy waste of the constant pressure variable pump is reduced when the pump is in standby, and the oil flow rate is extended. of life.

Description

technical field [0001] The invention relates to a constant pressure variable pump system and an energy saving method. Background technique [0002] With the improvement of people's living standards, human beings' demand for energy is increasing, and the pollution of the environment is becoming more and more intolerable. Energy conservation and emission reduction have become the consensus of all mankind. Hydraulic systems are commonly used in the production process of large industries such as metallurgy, and the proportion of energy consumption of hydraulic systems is increasing. In a hydraulic system using a constant pressure variable pump, when the system is not working temporarily, the swash plate of the hydraulic pump is automatically at such a swash plate angle that the oil discharged from the hydraulic pump just meets the leakage (internal leakage) of the hydraulic pump. With the increase of the service time of the hydraulic pump, the internal leakage of the hydraulic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B11/17
Inventor 董喜荣董文广
Owner ANGANG STEEL CO LTD
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