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Potential energy recovery system and control method thereof

A technology of potential energy recovery and control method, which can be used in fluid pressure actuation system components, fluid pressure actuation devices, machines/engines, etc., and can solve problems such as low energy recovery efficiency

Pending Publication Date: 2020-04-07
SANY MARINE HEAVY IND
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Problems solved by technology

[0005] The purpose of the present invention is to provide a potential energy recovery system and its control method to alleviate the technical problem of low energy recovery efficiency in the hydraulic system in the equipment with potential energy recovery function in the prior art

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  • Potential energy recovery system and control method thereof

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Embodiment Construction

[0031] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inside" and the like are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplified descriptions, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a spec...

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Abstract

The invention relates to the technical field of equipment with a potential energy recovery function, in particular to a potential energy recovery system and a control method thereof. The potential energy recovery system comprises an oil tank, a first power supply, a first motor, a motor, a lifting oil cylinder and a controller, the first power supply is a storage battery, the first motor can be switched between a motor mode and a generator mode, and the lifting oil cylinder is used for driving lifting components to lift; the storage battery is electrically connected with the first motor, the first motor is connected with the motor, the first connector of the motor communicates with the lifting oil cylinder through a valve assembly, and the second connector of the motor communicates with anoil tank; a first pressure sensor is installed between the valve assembly and the lifting oil cylinder, a second pressure sensor is installed between the motor and the valve assembly, and the first pressure sensor, the second pressure sensor, the valve assembly and the first motor are all electrically connected with the controller. The control method is applied to the potential energy recovery system. According to the potential energy recovery system and the control method thereof, the energy conversion efficiency is high.

Description

technical field [0001] The invention relates to the technical field of equipment with a potential energy recovery function, in particular to a potential energy recovery system and a control method thereof. Background technique [0002] Many equipment with potential energy recovery function (such as: stacker) use the hydraulic system to drive its lifting parts (such as: the lifting parts of the stacker) to rise and fall, and use the hydraulic system to recover the gravitational potential energy of the lifting parts, and convert the gravitational potential energy Converted to other energy (such as: electrical energy) for storage. [0003] Existing equipment with potential energy recovery function will add a balance valve to the hydraulic system in order to prevent the lifting parts from stalling. However, the pressure loss of the balance valve is relatively large, resulting in low energy recovery efficiency. [0004] To sum up, how to overcome the above-mentioned defects of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03G3/00F15B21/14F15B11/16
CPCF03G3/00F15B11/16F15B21/14F15B2211/20515F15B2211/88
Inventor 杨浪靳三川吴冠宇
Owner SANY MARINE HEAVY IND
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