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Free piston expansion type hydraulic power output system with balance weight mechanism

A hydraulic power output, expansion technology, applied in the direction of fluid pressure actuation system components, fluid pressure actuation devices, mechanical equipment, etc., can solve the complex use and maintenance of recovery equipment, waste heat and pressure energy recovery equipment is expensive, waste heat The waste of excess pressure resources and other problems can achieve the effects of light weight, improved energy conversion efficiency, and reduced air leakage loss.

Pending Publication Date: 2021-07-23
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention intends to provide a free-piston expansion hydraulic power output system with a counterweight mechanism to solve the waste of waste heat and pressure resources, the high cost of waste heat and pressure energy recovery equipment, and the complicated use and maintenance of recovery equipment. question

Method used

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  • Free piston expansion type hydraulic power output system with balance weight mechanism

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

[0019] The reference signs in the drawings of the specification include: displacement sensor 1, free piston expander 2, counterweight mechanism 3, single-acting hydraulic plunger cylinder 4, first oil tank 5, first one-way valve 6, two-position two-way Solenoid valve 7, second one-way valve 8, second safety valve 9, second oil tank 10, second accumulator 11, third one-way valve 12, hand pump 13, fourth one-way valve 14, one-way quantitative A hydraulic motor 15 , a first safety valve 16 , a third oil tank 17 , a first accumulator 18 , and an energy conversion unit 19 .

[0020] Such as figure 1 As shown, a free-piston expansion type hydraulic power output system with a counterweight mechanism 3 includes an intake pipeline, an exhaust pipeline, an energy conversion unit 19 and an energy output unit.

[0021] The energy conversion unit 19 includes a free...

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Abstract

The invention discloses a free piston expansion type hydraulic power output system with a balance weight mechanism. The free piston expansion type hydraulic power output system comprises an air inlet pipeline, an exhaust pipeline, an energy conversion unit and an energy output unit. The energy conversion unit comprises a first oil tank, a second oil tank, a free piston expansion machine, a plunger cylinder and a balance weight mechanism. An expansion cavity of the free piston expansion machine is connected with a switch valve A and a switch valve B which are connected in parallel and connected with an air inlet pipeline and an exhaust pipeline correspondingly, and a working cavity of the plunger cylinder is connected with a first branch and a second branch. The first branch is provided with a first one-way valve and a first oil tank, the second branch is provided with a second one-way valve, a third one-way valve, a second energy accumulator, a second safety valve, a manual pump and a second oil tank, and the two ends of the second one-way valve are connected with a two-position two-way electromagnetic valve in parallel. The energy output unit comprises a one-way quantitative hydraulic motor, a third oil tank, a first energy accumulator and a first safety valve. The free piston expansion type hydraulic power output system is simple in structure, low in manufacturing cost, suitable for two-phase flow and variable working condition working environments and high in energy recovery efficiency.

Description

technical field [0001] The invention relates to the technical field of a power output system that utilizes waste heat and pressure energy from industrial exhaust low-temperature waste gas to output kinetic energy, in particular to a free-piston expansion hydraulic power output system with a counterweight mechanism. Background technique [0002] Energy is an important material basis for the survival and development of human society, and all social activities and survival of human beings depend on the supply of energy. my country's economic development has entered a new normal, the growth rate of energy consumption is slowing down, the problems of development quality and efficiency are prominent, and the overall efficiency of the energy system is low. Low-grade energy such as industrial waste heat and pressure, waste gas and waste heat in my country has the characteristics of many types and large reserves. Due to the existence of problems such as low enthalpy value, large ener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/14F15B21/02F15B1/02F15B11/08F15B13/04F15B15/28
CPCF15B21/14F15B21/02F15B1/02F15B1/021F15B11/08F15B13/04F15B15/2815
Inventor 周雄徐良吴瀛坤季炫宇吴伟民冷再寒纪成香刘志强
Owner CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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