CN216950731U

CN216950731U - Novel hydraulic drive compression cylinder for compressed gas

Info

Publication number: CN216950731U
Application number: CN202220527751.9U
Authority: CN
Inventors: 岳晋虎; 岳进军; 张振穆
Original assignee: Qingdao Taiyue Gas Equipment Co ltd
Current assignee: Qingdao Taiyue Gas Equipment Co ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-07-12
Anticipated expiration: 2032-03-11

Abstract

The utility model provides a novel hydraulic driving compression cylinder for compressing gas, which relates to the technical field of gas compression devices and comprises an oil cylinder, wherein a third air cylinder and a fourth air cylinder are respectively arranged on two sides of the oil cylinder, the third air cylinder and the fourth air cylinder are symmetrically arranged by taking the oil cylinder as a center, a first air cylinder is arranged on one side, away from the oil cylinder, of the third air cylinder, a second air cylinder is arranged on one side, away from the oil cylinder, of the fourth air cylinder, and the first air cylinder, the second air cylinder, the third air cylinder, the fourth air cylinder and the oil cylinder are all arranged on a shaft in series. This single compression cylinder of novel hydraulic compression jar has just realized tertiary, level four or multistage gas compression, improves compression efficiency, simplification equipment, reduces the equipment size, reduces equipment manufacturing and use cost to can set up oil gas isolation chamber according to the in-service use condition on the basis that does not change the compression cylinder, strengthen the oil gas isolation.

Description

Novel hydraulic drive compression cylinder for compressed gas

Technical Field

The utility model relates to the technical field of gas compression devices, in particular to a novel hydraulic drive compression cylinder for compressing gas.

Background

The single compression cylinder of present common gas compressor adopts one-level or second grade compression mostly, when needing higher outlet pressure, realizes multistage gas compression through two or even a plurality of cylinder bore different sizes of establishing ties compression cylinder usually, but increases the quantity of compression cylinder and can increase the equipment appearance, and the manufacturing and the later stage use cost of equipment also can increase by a wide margin simultaneously. In addition, the common compression cylinder can not completely isolate oil and gas, and when gas (such as hydrogen) with harsh requirements on oil content is involved, the existing compression cylinder needs to be improved to completely isolate oil and gas.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, the single compression cylinder of the novel hydraulic compression cylinder realizes three-level, four-level or multi-level gas compression, improves the compression efficiency, simplifies equipment, reduces the equipment size and reduces the equipment manufacturing and using cost, and an oil-gas isolation cavity can be arranged on the basis of not changing the compression cylinder according to the actual using condition to strengthen oil-gas isolation.

In order to achieve the purpose, the utility model adopts the following technical scheme: a novel hydraulic drive compression cylinder for compressed gas comprises an oil cylinder, wherein a cylinder III and a cylinder IV are respectively arranged on two sides of the oil cylinder, the cylinder III and the cylinder IV are symmetrically arranged by taking the oil cylinder as a center, a cylinder I is arranged on one side, far away from the oil cylinder, of the cylinder III, a cylinder II is arranged on one side, far away from the oil cylinder, of the cylinder IV, the cylinder I, the cylinder II, the cylinder III, the cylinder IV and the oil cylinder are all arranged on a shaft in series, an oil cylinder piston, a cylinder piston I, a cylinder piston II, a cylinder piston III and a cylinder piston IV are arranged on the shaft, the oil cylinder piston is arranged in the oil cylinder, the cylinder piston I is arranged in the cylinder I, the cylinder piston II is arranged in the cylinder II, the cylinder piston III is arranged in the cylinder III, the cylinder piston IV is arranged in the cylinder IV, the cylinder I and the cylinder II have the same cylinder diameter, the cylinder diameter of the first cylinder is larger than that of the third cylinder, the third cylinder and the fourth cylinder are connected through a second middle positioning plate, and the third cylinder and the fourth cylinder are connected through a first middle positioning plate.

As a preferred embodiment, the first inside of the cylinder corresponding to the two sides of the first cylinder piston is respectively a first-stage compression cavity and a second-stage compression cavity, the second inside of the cylinder corresponding to the two sides of the second cylinder piston is respectively a second-stage compression cavity and a second-stage compression cavity, the third inside of the cylinder corresponding to the two sides of the third cylinder piston is respectively a first third-stage compression cavity and a first oil-gas isolation cavity, the fourth inside of the cylinder corresponding to the two sides of the fourth cylinder piston is respectively a second third-stage compression cavity and a second oil-gas isolation cavity, and the first inside of the cylinder corresponding to the two sides of the cylinder piston is respectively a first hydraulic oil cavity and a second hydraulic oil cavity.

The technical effect of adopting the further scheme is as follows: to facilitate the use of the utility model.

In a preferred embodiment, the diameter of the shaft between the third cylinder piston and the fourth cylinder piston is larger than the diameter of the shaft between the first cylinder piston and the third cylinder piston, and the diameter of the shaft between the third cylinder piston and the fourth cylinder piston is larger than the diameter of the shaft between the second cylinder piston and the fourth cylinder piston.

The technical effect of adopting the further scheme is as follows: the volume in each cylinder is adjusted, so that the compression effect in different cylinders is different.

In a preferred embodiment, the first middle positioning plate is provided with a gas seal, and the second middle positioning plate is provided with a gas seal and an oil seal.

The technical effect of adopting the further scheme is as follows: the gas seal and the oil seal separate each chamber, preventing internal gas and oil gas from leaking.

As a preferred embodiment, an end positioning plate is arranged on both a port of the first cylinder far away from the first middle positioning plate and a port of the second cylinder far away from the first middle positioning plate.

The technical effect of adopting the further scheme is as follows: the first-stage compression cavity and the second-stage compression cavity are sealed.

In a preferred embodiment, the end positioning plate, the first middle positioning plate and the second middle positioning plate are connected through a long-pull rod bolt.

The technical effect of adopting the further scheme is as follows: so that the utility model is more compact as a whole.

Compared with the prior art, the utility model has the advantages and positive effects that,

this single compression cylinder of novel hydraulic compression jar has just realized tertiary, level four or multistage gas compression, improves compression efficiency, simplification equipment, reduces equipment size, reduction equipment manufacturing and use cost to can set up oil gas isolation chamber on the basis that does not change the compression cylinder according to the in-service use condition, strengthen oil gas isolation, can also the symmetry set up a plurality of cylinders between cylinder three and hydro-cylinder, cylinder four and the hydro-cylinder. The compression cylinder can realize five-stage or multi-stage compression, the first cylinder, the second cylinder, the third cylinder and the fourth cylinder can be externally provided with water jackets, the heat dissipation efficiency is improved, and the compression cylinder is provided with a displacement sensor on the end positioning plate and can measure the position of the shaft in the compression cylinder.

Drawings

FIG. 1 is a schematic front view of a novel hydraulically actuated compression cylinder for compressing gas in accordance with the present invention;

FIG. 2 is a schematic structural view of a novel hydraulically actuated compression cylinder for compressing gas in accordance with the present invention;

FIG. 3 is a schematic diagram of a compression cylinder of the novel hydraulic drive compression cylinder for compressing gas, which is provided by the utility model, with three-stage compression and an oil-gas isolation cavity;

fig. 4 is a schematic diagram of the path of gas when the compression cylinder of the novel hydraulic drive compression cylinder for compressing gas provided by the utility model is in four-stage compression.

Illustration of the drawings:

1. a first cylinder; 2. a second air cylinder; 3. a third air cylinder; 4. a cylinder IV; 5. an oil cylinder; 6. a shaft; 7. an end positioning plate; 8. a first middle positioning plate; 9. a second middle positioning plate; 10. a cylinder piston; 11. a first cylinder piston; 12. a cylinder piston II; 13. a cylinder piston III; 14. a cylinder piston IV; 15. sealing the gas; 16. oil sealing; 17. a first stage compression cavity I; 18. a first-stage compression cavity II; 19. a first secondary compression cavity; 20. a second-stage compression cavity II; 21. a first three-stage compression cavity; 22. a third-stage compression cavity II; 23. a first oil-gas isolation cavity; 24. a second oil-gas isolation cavity; 25. a first hydraulic oil cavity; 26. and a second hydraulic oil chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in fig. 1 to 4, the present invention provides a technical solution: a novel hydraulic drive compression cylinder for compressed gas comprises an oil cylinder 5, wherein two sides of the oil cylinder 5 are respectively provided with a cylinder three 3 and a cylinder four 4, the cylinder three 3 and the cylinder four 4 are symmetrically arranged by taking the oil cylinder 5 as a center, one side of the cylinder three 3, which is far away from the oil cylinder 5, is provided with a cylinder one 1, one side of the cylinder four 4, which is far away from the oil cylinder 5, is provided with a cylinder two 2, the cylinder one 1, the cylinder two 2, the cylinder three 3, the cylinder four 4 and the oil cylinder 5 are all arranged on a shaft 6 in series, the shaft 6 is provided with a cylinder piston 10, a cylinder piston one 11, a cylinder piston two 12, a cylinder piston three 13 and a cylinder piston four 14, the cylinder piston 10 is arranged in the oil cylinder 5, the cylinder piston one 11 is arranged in the cylinder one 1, the cylinder piston two 12 is arranged in the cylinder two 2, the cylinder piston three 13 is arranged in the cylinder three 3, the cylinder piston four 14 is arranged in the cylinder four 4, and the inner diameters of the cylinder one 1 and the cylinder two 2 are the same, the inner diameters of the third cylinder 3 and the fourth cylinder 4 are the same, the diameter of the first cylinder 1 is larger than that of the third cylinder 3, the design enables the utility model to utilize different volumes in different compression cavities to realize multi-stage compression of gas by one compression cylinder, the oil cylinder 5 and the third cylinder 3, the oil cylinder 5 and the fourth cylinder 4 are connected by a second middle positioning plate 9, and the third cylinder 3 and the first cylinder 1, and the fourth cylinder 4 and the second cylinder 2 are connected by a first middle positioning plate 8; the interior of a first cylinder 1 corresponding to two sides of a first cylinder piston 11 is respectively provided with a first-stage compression cavity 17 and a first-stage compression cavity 19, the interior of a second cylinder 2 corresponding to two sides of a second cylinder piston 12 is respectively provided with a second-stage compression cavity 18 and a second-stage compression cavity 20, the interior of a third cylinder 3 corresponding to two sides of a third cylinder piston 13 is respectively provided with a first third-stage compression cavity 21 and a first oil-gas isolation cavity 23, the interior of a fourth cylinder 4 corresponding to two sides of a fourth cylinder piston 14 is respectively provided with a second third-stage compression cavity 22 and a second oil-gas isolation cavity 24, and the interior of a first oil cylinder 5 corresponding to two sides of a first oil cylinder piston 10 is respectively provided with a first hydraulic oil cavity 25 and a second hydraulic oil cavity 26, so that the utility model can be conveniently used; the diameter of the shaft 6 between the three cylinder pistons 13 and the four cylinder pistons 14 is larger than that of the shaft 6 between the first cylinder pistons 11 and the three cylinder pistons 13, the diameter of the shaft 6 between the three cylinder pistons 13 and the four cylinder pistons 14 is larger than that of the shaft 6 between the two cylinder pistons 12 and the four cylinder pistons 14, the diameter of the shaft 6 between the first cylinder pistons 11 and the three cylinder pistons 13 is the same as that of the shaft 6 between the two cylinder pistons 12 and the four cylinder pistons 14, and the volume in each cylinder is adjusted to enable the compression effects in different cylinders to be different; an air seal is arranged on the middle positioning plate I8; the second middle positioning plate 9 is provided with a gas seal 15 and an oil seal 16 which isolate each chamber to prevent internal gas and oil gas from leaking; an end positioning plate 7 is arranged on both a port of the first cylinder 1 far away from the first middle positioning plate 8 and a port of the second cylinder 2 far away from the first middle positioning plate 8 and used for sealing the first primary compression cavity and the second primary compression cavity; the end positioning plate 7, the middle positioning plate I8 and the middle positioning plate II 9 are connected through the long pull rod, so that the whole body of the utility model is more fastened.

In the embodiment, the oil cylinder is arranged in the middle, the cylinder III and the cylinder IV are symmetrically arranged at two sides of the oil cylinder, the cylinder I is arranged at the left side of the cylinder III, the cylinder II is arranged at the right side of the cylinder IV, and each piston, each cylinder and each oil cylinder are connected in series on a straight line through a through shaft; the shaft adopts a structure with a thick middle diameter and thin two ends, the shaft diameters of the oil cylinder and the two oil-gas isolation cavities are thick, and the shaft diameters of the secondary compression cavity and the tertiary compression cavity are thin; the inner diameters of the first cylinder and the second cylinder are the same, the inner diameters of the third cylinder and the fourth cylinder are the same, and the inner diameters of the first cylinder and the second cylinder are larger than those of the third cylinder and the fourth cylinder; the first-stage compression cavity, the second-stage compression cavity, the third-stage compression cavity and the oil-gas isolation cavity are respectively provided with a gas inlet and a gas outlet, and the gas inlet and the gas outlet are respectively connected with a conducting pipeline and form a gas inlet main port and a gas outlet main port through conducting conduits; a one-way valve which accords with the gas leading-in and leading-out directions is arranged on a conduction pipeline which connects each gas leading-in port and each gas leading-out port;

the two oil-gas isolation cavities can switch functions according to the requirement of the compression medium on the oil content, when the compression medium has a strict requirement on the oil content (completely isolating oil and gas such as hydrogen), the cavity can be used as an oil-gas isolation cavity, at the moment, the compression cylinder is compressed in three stages, and the oil-gas isolation cavities are arranged, so that oil and gas can be completely isolated; when the compression medium has no strict requirement on oil content (micro oil content such as air and natural gas), the cavity can be used as a four-stage compression cavity, and the compression cylinder is compressed by four stages at the moment, so that the compression efficiency can be improved;

one or more cylinders can be added between the cylinder III and the oil cylinder and between the cylinder IV and the oil cylinder to realize five-stage or more-stage compression;

the water jackets can be arranged outside the first cylinder, the second cylinder, the third cylinder and the fourth cylinder according to actual requirements, so that a better heat dissipation effect is achieved;

the compression cylinder is provided with a displacement sensor on an end positioning plate, and the position of the shaft in the compression cylinder can be measured.

The working principle is as follows:

as shown in fig. 1-4, the utility model comprises a cylinder I, a cylinder III, an oil cylinder, a cylinder IV and a cylinder II from left to right, wherein the cylinders are separated by positioning plates, and finally, all cylinder bodies and the positioning plates are fixed together by a pull rod; the first-stage compression cavity, the second-stage compression cavity, the third-stage compression cavity and the oil-gas isolation cavity or the fourth-stage compression cavity are symmetrically distributed on two sides of the oil cylinder; the interior of the compression cylinder is connected in series by a through shaft.

When the compression cylinder works, the motor drives the oil pump to inject hydraulic oil into the oil cylinder to push the shaft and the piston to operate, and the shaft and the piston reciprocate in the compression cylinder by arranging the hydraulic oil reversing system.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides a compressed gas's novel hydraulic drive compression cylinder, includes hydro-cylinder (5), its characterized in that: the cylinder (5) is provided with a cylinder III (3) and a cylinder IV (4) on two sides respectively, the cylinder III (3) and the cylinder IV (4) are arranged by taking the cylinder (5) as central symmetry, one side of the cylinder III (3) far away from the cylinder (5) is provided with a cylinder I (1), one side of the cylinder IV (4) far away from the cylinder (5) is provided with a cylinder II (2), the cylinder I (1), the cylinder II (2), the cylinder III (3), the cylinder IV (4) and the cylinder (5) are all arranged on a shaft (6) in series, the shaft (6) is provided with a cylinder piston (10), a cylinder piston I (11), a cylinder piston II (12), a cylinder piston III (13) and a cylinder piston IV (14), the cylinder piston (10) is arranged in the cylinder (5), the cylinder piston I (11) is arranged in the cylinder I (1), and the cylinder piston II (12) is arranged in the cylinder II (2), the cylinder piston three (13) is arranged in the cylinder three (3), the cylinder piston four (14) is arranged in the cylinder four (4), the inner diameters of the cylinder one (1) and the cylinder two (2) are the same, the inner diameters of the cylinder three (3) and the cylinder four (4) are the same, the inner diameter of the cylinder one (1) is larger than the inner diameter of the cylinder three (3), the cylinder (5) and the cylinder three (3) are connected with the cylinder (5) and the cylinder four (4) through a middle positioning plate two (9), and the cylinder three (3) and the cylinder one (1) are connected with the cylinder four (4) and the cylinder two (2) through a middle positioning plate one (8).

2. The new hydraulically driven compression cylinder of claim 1, wherein: the cylinder I (1) corresponding to the two sides of the cylinder piston I (11) is internally provided with a first-stage compression cavity I (17) and a second-stage compression cavity I (19) respectively, the cylinder II (2) corresponding to the two sides of the cylinder piston II (12) is internally provided with a first-stage compression cavity II (18) and a second-stage compression cavity II (20) respectively, the cylinder III (3) corresponding to the two sides of the cylinder piston III (13) is internally provided with a third-stage compression cavity I (21) and an oil-gas isolation cavity I (23) respectively, the cylinder IV (4) corresponding to the two sides of the cylinder piston IV (14) is internally provided with a third-stage compression cavity II (22) and an oil-gas isolation cavity II (24) respectively, and the cylinder (5) corresponding to the two sides of the cylinder piston (10) is internally provided with a first oil cavity I (25) and a second hydraulic oil cavity (26) respectively.

3. The new hydraulically driven compression cylinder of claim 1, wherein: the diameter of the shaft (6) between the third cylinder piston (13) and the fourth cylinder piston (14) is larger than that of the shaft (6) between the first cylinder piston (11) and the third cylinder piston (13), and the diameter of the shaft (6) between the third cylinder piston (13) and the fourth cylinder piston (14) is larger than that of the shaft (6) between the second cylinder piston (12) and the fourth cylinder piston (14); the diameter of the shaft (6) between the first cylinder piston (11) and the third cylinder piston (13) is the same as the diameter of the shaft (6) between the second cylinder piston (12) and the fourth cylinder piston (14).

4. The new hydraulically driven compression cylinder of claim 1, wherein: and a gas seal (15) is arranged on the first middle positioning plate (8), and a gas seal (15) and an oil seal (16) are arranged on the second middle positioning plate (9).

5. The new hydraulically driven compression cylinder of claim 1, wherein: and an end positioning plate (7) is arranged on one port of the first cylinder (1) far away from the first middle positioning plate (8) and one port of the second cylinder (2) far away from the first middle positioning plate (8).

6. The new hydraulically driven compression cylinder of claim 5, wherein: the end positioning plate (7), the middle positioning plate I (8) and the middle positioning plate II (9) are connected through a long pull rod.