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Mechanical feedback type speed-adjustable self-reversing gas pressurization cylinder

A technology of gas boosting and mechanical feedback, applied in mechanical equipment, liquid variable displacement machinery, fluid pressure actuators, etc., can solve the problems of reducing the safety and reliability of gas boosting cylinders, increasing the overall cost of compressors, etc. , to eliminate the risk of electric sparks igniting the working gas, improve safety, and reduce the impact of commutation

Active Publication Date: 2020-11-17
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, for flammable and explosive gas pressurized cylinders, using electrical signals for reversing control will inevitably lead to the risk of electric sparks detonating the gas medium, which reduces the safety and reliability of the gas pressurized cylinders. At the same time, a large number of explosion-proof The use of appliances also adds significantly to the overall cost of the compressor

Method used

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  • Mechanical feedback type speed-adjustable self-reversing gas pressurization cylinder
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  • Mechanical feedback type speed-adjustable self-reversing gas pressurization cylinder

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0028] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0029] refer to Figure 1-3 , 7 and 8, a mechanical feedback type adjustable speed self-reversing gas pressurized cylinder provided by the present invention, comprising a first cylinder 20 and a second cylinder 70, the first cylinder 20 and the second cylinder A piston mechanism is installed coaxially inside the 70, and the piston mechanism can slide along the inner wall of the cylinder barrel. The piston mechanism includes a piston rod 32 and pistons located at both ends, which are respectively the first piston 31 and the second piston 33, wherein the first hydraulic chamber 21...

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Abstract

The invention discloses a mechanical feedback type speed-adjustable self-reversing gas pressurization cylinder comprising a hydraulic reversing valve and a tail end displacement feedback mechanism. Atthe tail end of the pressurization stroke, a piston of the pressurization cylinder pushes a feedback rod in a connecting body to move, and movement of the feedback rod is transmitted to a valve element of the hydraulic reversing valve through a feedback connecting rod, so that the valve element correspondingly moves; an internal flow channel is switched, and self-reversing of the gas pressurization cylinder is achieved; and the maximum displacement and the movement speed of the valve element of the reversing valve are changed by adjusting the position of the installation fulcrum of the feedback connecting rod and changing the feedback coefficient, and therefore the reversing speed of the pressurization cylinder is adjusted. According to the mechanical feedback type speed-adjustable self-reversing gas pressurization cylinder, compared with an electric control reversing pressurization cylinder, an electromagnetic reversing valve does not need to be adopted, the risk that electric sparksignite working gas is eradicated, the mechanical feedback type speed-adjustable self-reversing gas pressurization cylinder is particularly suitable for pressurizing conveying of flammable and combustible gas such as natural gas, and safety of the gas pressurization cylinder can be remarkably improved, reversing impact of the gas pressurization cylinder is reduced, and therefore vibration and noise of the gas pressurization cylinder are weakened.

Description

technical field [0001] The invention relates to the field of petroleum equipment. More particularly, the present invention relates to a mechanical feedback adjustable speed self-steering gas pressurized cylinder. Background technique [0002] Gas pressurization is widely used in the field of gas transportation, and the compressor is the key equipment for gas pressurization. Hydraulic compressors have been widely used in natural gas refueling sub-stations because of their wide pressure range and relatively low cost. The gas booster cylinder is the core equipment of the hydraulic compressor. [0003] Existing hydraulic compressors generally use a combination of travel switches and electro-hydraulic reversing valves for their gas booster cylinders to drive the hydraulic cylinder to reciprocate, forcing the combined check valves in the booster cylinder to open and close in an orderly manner. Natural gas supercharging. In fact, for flammable and explosive gas pressurized cyli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B35/02F04B27/00F04B39/12F04B39/00F15B15/20F15B9/02F15B15/28
CPCF04B9/113F04B27/005F04B39/0027F04B39/122F15B15/202F15B9/02F15B15/2807
Inventor 池胜高李红高海平宋满华潘灵永李新年车强
Owner CHINA PETROCHEMICAL CORP
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