A pressureless automatic jacking device and method

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

Active Publication Date: 2020-12-29
ZHEJIANG GUANGSHA COLLEGE OF APPLIED CONSTRTECH
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  • Summary
  • 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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  • A pressureless automatic jacking device and method
  • A pressureless automatic jacking device and method
  • A pressureless automatic jacking device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The present invention is divided into a jacking mode, an unloading mode, a circulation mode and a regeneration mode during actual work.

[0034] Jacking mode:

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

[0036] Put the heavy object on the jacking mechanism of the hydraulic cylinder 5, and 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 is increased. When the pressure is increased enough to lift the weight loaded by the jacking mechanism of the hyd...

Embodiment 2

[0045] The only difference between embodiment 2 and embodiment 1 is 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] As the jacking mode and the unloading mode are repeated, the concentration of the aqueous solution in the solution tank gradually becomes thinner, and when the concentration is lower than the limit value, 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 after being pressurized by the dilute solution pump 8, 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 circulation pump 15, enters the heating channel of the heater 13, absorbs the heat prov...

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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 field of hydraulic technology, and in particular 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, actuators, control components, auxiliary components (accessories) and hydraulic oil. The power element refers to the oil pump in the system, which is the power source of the entire hydraulic system. The mechanical energy consumed during the jacking process is actually provided by the conversion between the mechanical energy of the oil pump and the pressure energy. The jacking actuator is the output reciprocating motion hydraulic cylinder. When the traditional hydraulic system works, firstly the oil pump consumes work to pressurize the oil, and the oil enters the hydraulic cylinder through the oil inlet to push the pis...

Claims

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Application Information

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Patent Type & Authority Patents(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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