Pressureless automatic jacking device and method

A jacking device and automatic technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, servo motors, etc., can solve the problems of high price of hydraulic working medium and difficult recycling of hydraulic working medium, and realize recycling and reuse, low environmental impact, easy to achieve

Active Publication Date: 2019-09-10
ZHEJIANG GUANGSHA COLLEGE OF APPLIED CONSTRTECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the traditional lifting device consumes high-grade energy such as high-pressure steam and electric energy, the price of hydraulic working fluid is relatively high, and there is a disadvantage that hydraulic working fluid is difficult to recycle. Therefore, it is urgent to propose a targeted method that does not consume high-grade energy. , make full use of low-grade heat energy, use water and aqueous solution as hydraulic working medium, and be easy to recycle green hydraulic jacking technology, providing a new direction for the development of hydraulic jacking technology

Method used

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  • Pressureless automatic jacking device and method
  • Pressureless automatic jacking device and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The invention is divided into jacking mode, unloading mode, circulation mode and regeneration mode in actual work.

[0034] Jacking mode:

[0035] Open the pure water valve 2 and the inlet valves 4 of all hydraulic cylinders that need to be jacked, and close the circulation pump outlet valve 9, the return valve 10, and other hydraulic cylinder inlet valves 4 that do not need to be jacked.

[0036] Place the weight on the lifting mechanism of the hydraulic cylinder 5. Under the action of the osmotic pressure of the hydraulic working medium in the forward osmosis tank 3, the water in the pure water tank 1 automatically enters the aqueous solution side through the forward osmosis membrane in the forward osmosis tank 3. At the same time, the pressure of the aqueous solution side of the forward osmosis tank and the connected hydraulic cylinder are increased. When the pressure is increased enough to lift the weight loaded by the lifting mechanism of the hydraulic cylinder 5, the lif...

Embodiment 2

[0045] The difference between Embodiment 2 and Embodiment 1 is only that the regenerator is removed, the regeneration mode is slightly different from Embodiment 1, and the rest of the modes are the same.

[0046] Regeneration mode

[0047] With the repetition of the jacking mode and the unloading mode, the concentration of the aqueous solution in the solution tank gradually becomes thinner. When the concentration is lower than the limit, it enters the regeneration mode.

[0048] At this time, the aqueous solution flows out from the dilute solution outlet 704 of the solution tank 7, and is pressurized by the dilute solution pump 8 and enters the bottom of the regeneration tower 12 from the dilute solution inlet 1201 of the regeneration tower for storage. The solution in the regeneration tower 12 flows out from the circulating liquid outlet 1202, pressurized by the regeneration tower circulating pump 15, enters the heating channel of the heater 13, absorbs the heat provided by the exte...

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Abstract

The invention discloses a pressureless automatic jacking device and a pressureless automatic jacking method. The pressureless automatic jacking device comprises a pure water box, a positive permeationbox, a hydraulic cylinder, a circulating pump, a solution box, a dilute solution pump, a heat regenerator, a regeneration tower, a heater, a concentrated solution pump and a regeneration tower circulating pump; a pure water outlet of the pure water box is connected with a pure water side inlet of the positive permeation box; an aqueous solution side outlet of the positive permeation box is connected with a liquid inlet valve of the hydraulic cylinder; an aqueous solution side outlet of the positive permeation box is connected with a liquid return port of the solution box; a dilute solution outlet of the solution box is connected with a dilute solution inlet at the bottom of the regeneration tower through the dilute solution pump; an outlet at the bottom of the regeneration tower is connected with an inlet at the top of the regeneration tower sequentially through the regeneration tower circulating pump and the heater; a concentrated liquid outlet at the bottom of the regeneration toweris connected with a concentrated solution inlet of the solution box through the concentrated liquid pump; and a circulating liquid outlet of the solution box is connected with an aqueous solution inlet of the positive permeation box sequentially through the circulating pump and an outlet valve of the circulating pump. The invention provides a green hydraulic jacking technology, which is easy to recycle and capable of completely utilizing low-grade heat energy.

Description

Technical field [0001] The invention belongs to the technical field of hydraulics, and specifically relates to a pressureless automatic jacking device and method. Background technique [0002] Hydraulic jacking systems are widely used in the field of construction machinery. Usually a complete hydraulic jacking system consists of five parts: power components, executive components, control components, auxiliary components (accessories) and hydraulic oil. The power element refers to the oil pump in the system. It is the power source of the entire hydraulic system. The mechanical energy that needs to be consumed during the lifting process is actually provided by the conversion between the mechanical energy of the oil pump and the pressure energy, and the lifting actuator is the output reciprocating motion Hydraulic cylinder. When the traditional hydraulic system is working, the oil pump consumes power to pressurize the oil first, the oil enters the hydraulic cylinder through the oil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/16F15B11/17F15B13/02F15B13/06F15B21/0423
CPCF15B11/16F15B11/17F15B13/02F15B13/06F15B21/0423
Inventor 李天宝叶根富胡作霖张权金玉珍王厉
Owner ZHEJIANG GUANGSHA COLLEGE OF APPLIED CONSTRTECH
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