CN218542546U

CN218542546U - Hydraulic drive compression cylinder for compressed gas

Info

Publication number: CN218542546U
Application number: CN202222742669.0U
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: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-02-28
Anticipated expiration: 2032-10-18

Abstract

The utility model provides a compressed gas's hydraulic drive compression cylinder relates to gas compression device technical field, including the oil division board, the oil gas is mixed with jar one, oil gas is mixed with jar two, middle locating plate, cylinder one, cylinder two, tip locating plate, axle and connecting rod. The oil-gas mixing cylinder I and the cylinder oil-gas mixing cylinder II are arranged in a central symmetry mode through the oil isolation plate, the first cylinder I is arranged on one side, away from the oil isolation plate, of the first oil-gas mixing cylinder, the second cylinder II is arranged on one side, away from the oil isolation plate, of the second oil-gas mixing cylinder, and the first cylinder, the second cylinder, the first oil-gas mixing cylinder and the second oil-gas mixing cylinder are all arranged on the shaft in a series connection mode. This single compression cylinder of novel hydraulic compression jar has just realized second grade or tertiary gas compression, improves compression efficiency, simplification equipment, reduces equipment size, reduces equipment manufacturing and use cost.

Description

Hydraulic drive compression cylinder for compressed gas

Technical Field

The utility model relates to a gas compression technical field especially relates to a compressed gas's hydraulic drive compression cylinder.

Background

The single compression cylinder of present common gas compressor adopts one-level or second grade compression mostly, when the higher exit pressure of needs, realizes multistage gas compression through two compression cylinders that a plurality of cylinder bore size difference even of establishing ties usually, but increases the quantity of compression cylinder and can increase the equipment appearance, and the manufacturing of equipment and later stage use cost also can increase by a wide margin simultaneously. Even if a single compression cylinder achieves three-stage compression through a plurality of cylinders connected in series, the length of the compression cylinder is too long, and the compression cylinder is not easy to install and maintain.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the single compression cylinder that exists among the prior art and even reach tertiary compression through a plurality of cylinders of establishing ties, also can cause the length overlength of compression cylinder itself, the shortcoming of difficult installation and maintenance provides a compressed gas's hydraulic drive compression cylinder.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a hydraulically driven compression cylinder for compressing a gas, comprising: the oil baffle plate and the main shaft, the both sides of oil baffle plate use the oil baffle plate to be provided with oil gas mixing cylinder one and oil gas mixing cylinder two as central symmetry, one side that oil baffle plate was kept away from to oil gas mixing cylinder one is equipped with cylinder one, one side that oil baffle plate was kept away from to oil gas mixing cylinder two is equipped with cylinder two, cylinder one, cylinder two, oil gas mixing cylinder one and oil gas mixing cylinder two are all established ties and are set up on the main shaft, the both ends of main shaft all are provided with piston one, use the central line of main shaft to be provided with piston two, two on the main shaft piston one sets up respectively in cylinder one and cylinder two, two piston one is equallyd divide cylinder one and cylinder two into compression chamber one and compression chamber two, two respectively the piston two sets up respectively in oil gas mixing cylinder one and oil gas mixing cylinder two is compression chamber three and is equallyd divide the oil pocket with oil gas mixing cylinder two respectively.

As a preferred implementation mode, the inner diameters of the first air cylinder and the second air cylinder are the same, the inner diameters of the first oil-gas mixing cylinder and the second oil-gas mixing cylinder are the same, the inner diameter of the first air cylinder is larger than that of the first oil-gas mixing cylinder, the first oil-gas mixing cylinder and the second oil-gas mixing cylinder are connected through an oil isolation plate, and middle positioning plates are connected between the first air cylinder and the first oil-gas mixing cylinder and between the second air cylinder and the second oil-gas mixing cylinder.

The technical effect of adopting the further scheme is as follows: the length of the compression cylinder is shortened, and the compression cylinder is convenient to mount and connect.

In a preferred embodiment, the diameter of the main shaft between the two second pistons is larger than that between the first piston and the second piston, and the diameters of the main shafts between the first piston and the second piston are the same.

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.

As a preferred embodiment, a first air seal is arranged on the middle positioning plate, an oil seal is arranged on the oil isolation plate, a second air seal is arranged on the first piston, and an oil-gas seal is arranged on the second piston.

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, the first cylinder and the second cylinder are provided with end positioning plates respectively at a port far away from the middle positioning plate and a port far away from the middle positioning plate.

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

In a preferred embodiment, the end positioning plate, the middle positioning plate and the oil separating plate are connected through a pull rod.

The technical effect of adopting the further scheme is as follows: make the utility model discloses whole fastening more.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

the utility model discloses a single compression cylinder of the hydraulic compression cylinder realizes three-stage gas compression; and the oil-gas mixed cylinder is adopted, the original special oil cylinder is cancelled, and the length of the whole compression cylinder is greatly shortened. The compression efficiency is improved, the equipment is simplified, the size of the equipment is reduced, and the manufacturing and using cost of the equipment is reduced; this novel hydraulic compression jar can also be according to the in-service use condition, parallelly connected formation second grade compression with compression chamber one and compression chamber two on the basis that does not change compression jar self structure, has increased the displacement of gases of compression jar, matches multiple operating mode in a flexible way. The first air cylinder, the second air cylinder, the first oil-gas mixing cylinder and the second oil-gas mixing cylinder can be externally provided with water jackets according to actual working conditions, 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 structural view of a front side of a hydraulically driven compression cylinder for compressing gas according to the present invention;

fig. 2 is a schematic structural view of a hydraulic cylinder for compressing gas according to the present invention;

fig. 3 is a schematic diagram of a path of gas when the compression cylinder of the hydraulic drive compression cylinder for compressing gas is three-stage compression according to the present invention;

fig. 4 is a schematic diagram of a path of gas when the compression cylinder of the hydraulic drive compression cylinder for compressing gas is two-stage compression according to the present invention.

Illustration of the drawings:

1. a first cylinder; 2. a second air cylinder; 3. a first oil-gas mixing cylinder; 4. a second oil-gas mixing cylinder; 5. an end positioning plate; 6. a main shaft; 7. a middle positioning plate; 8. an oil barrier; 9. a pull rod; 10. a first piston; 11. a second piston; 12. a second air seal; 13. a first hermetic seal; 14. oil-gas sealing; 15. oil sealing; 16. a first compression cavity; 17. a second compression cavity; 18. a compression cavity III; 19. a hydraulic oil chamber; 20. a cylinder cooling water jacket; 21. the oil-gas mixing cylinder cools the water jacket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-4, the utility model provides a technical solution: the utility model provides a compressed gas's hydraulic drive compression cylinder, a novel hydraulic drive compression cylinder of compressed gas, includes oil division board 8, oil-gas mixture uses jar 3, oil-gas mixture uses jar two 4, middle locating plate 7, cylinder 1, cylinder two 2, tip locating plate 5, main shaft 6 and connecting pull rod 9. The first oil-gas mixing cylinder 3 and the second cylinder oil-gas mixing cylinder 4 are symmetrically arranged by taking the oil isolation plate 8 as a center, and one side of the first oil-gas mixing cylinder 3, which is far away from the oil isolation plate 8, is provided with a first cylinder 1; a second air cylinder 2 is arranged on one side, far away from the oil isolation plate 8, of the second oil-gas mixing cylinder 4; the first cylinder 1, the second cylinder 2, the first oil-gas mixing cylinder 3 and the second cylinder oil-gas mixing cylinder 4 are all arranged on the main shaft 6 in series. A first piston 10 and a second piston 11 are arranged on the main shaft 6; the first piston 10 is arranged in the first cylinder 1 and the second cylinder 2; the second piston 11 is arranged in the first oil-gas mixing cylinder 3 and the second oil-gas mixing cylinder 4. The cylinder diameters of the first cylinder 1 and the second cylinder 2 are the same; the cylinder diameters of the first oil-gas mixing cylinder 3 and the second oil-gas mixing cylinder 4 are the same; the cylinder diameters of the first cylinder 1 and the second cylinder 2 are larger than those of the first oil-gas mixing cylinder 3 and the second oil-gas mixing cylinder 4. This design makes the utility model discloses can utilize the volume in the different compression chambeies inequality, realize that a compression cylinder carries out multistage compression to gas. The first oil-gas mixing cylinder 3 and the second oil-gas mixing cylinder 4 are connected by an oil separation plate 8. The first cylinder 1 and the first oil-gas mixing cylinder 3 are connected with the second cylinder 2 and the second oil-gas mixing cylinder 4 through a middle positioning plate 7, and a port of the first cylinder 1, which is far away from the middle positioning plate 7, and a port of the second cylinder 2, which is far away from the middle positioning plate 7, are both provided with end positioning plates 5. The interiors of a first cylinder 1 and a second cylinder 2 corresponding to two sides of the first piston 10 are respectively a first compression cavity 16 and a second compression cavity 17, and the interiors of a first oil-gas mixing cylinder 3 and a second oil-gas mixing cylinder 4 corresponding to two sides of the second piston 11 are respectively a third compression cavity 18 and a hydraulic oil cavity 19. This design makes the utility model discloses be convenient for the utility model discloses an use, shortened the whole length of compression cylinder. The diameter of the shaft between the first piston 10 and the second piston 11 is larger than the diameter of the main shaft 6 between the two pistons 11. This design makes the utility model discloses adjust the volume in each cylinder for the compression effect in the different cylinders is different. The middle positioning plate 7 is provided with a first air seal 13; the oil isolation plate 8 is provided with an oil seal 15. A second air seal 12 is arranged on the piston I10; an oil-gas seal 14 is arranged on the second piston 11; the second gas seal 12, the first gas seal 13, the oil gas seal 14 and the oil seal 15 isolate the chambers to prevent the leakage of internal gas and oil gas. An end positioning plate 5 is arranged on both a port of the first cylinder 1 far away from the middle positioning plate 7 and a port of the second cylinder 2 far away from the middle positioning plate 7; for sealing the first compression chamber 16 and the second compression chamber 17. The end positioning plate 5, the middle positioning plate 7 and the oil isolation plate 8 are connected through a long pull rod 9. The whole body of the utility model is more tight, and the cylinder cooling water jacket 20 can be added or removed outside the cylinder I1 and the cylinder II 2 according to the working condition; the cooling water jacket 21 of the oil-gas mixing cylinder can be added or removed outside the first oil-gas mixing cylinder 3 and the second oil-gas mixing cylinder 4 according to the working condition.

In the embodiment, the oil separating plate 8 is arranged in the middle, the first oil-gas mixing cylinder 3 and the second oil-gas mixing cylinder 4 are symmetrically arranged on two sides of the oil separating plate 8, the first air cylinder 1 is arranged on the left side of the first oil-gas mixing cylinder 3, the second air cylinder 2 is arranged on the right side of the second oil-gas mixing cylinder 4, and each piston, each air cylinder and each oil-gas mixing cylinder are connected in series on a straight line through a branch shaft; the shaft adopts a structure with a thick middle diameter and thin diameters at two ends, the shaft diameters in the two hydraulic oil cavities 19 are thick, and the shaft diameters in the third compression cavity 18 and the second compression cavity 17 are thin; the inner diameters of the first cylinder 1 and the second cylinder 2 are the same, the inner diameters of the first oil-gas mixing cylinder 3 and the second oil-gas mixing cylinder 4 are the same, and the inner diameters of the first cylinder 1 and the second cylinder 2 are larger than the inner diameters of the first oil-gas mixing cylinder 3 and the second oil-gas mixing cylinder 4; a gas inlet and a gas outlet are formed in the first compression cavity 16, the second compression cavity 17 and the third compression cavity 18 respectively, the gas inlet and the gas outlet are connected with a conducting pipeline and form a gas inlet main port and a gas outlet main port through conducting conduits respectively; 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 utility model discloses a compression chamber one 16 and compression chamber two 17 can be according to the operating condition of compressor and switch the function. When the supercharging compression ratio of the compression medium is high and the requirement on the displacement is low, the first compression cavity 16 can be used as a first-stage compression cavity, the second compression cavity 17 is used as a second-stage compression cavity, the first compression cavity 16 and the second compression cavity 17 are connected in series, and the compression cylinder is compressed in three stages at the moment, so that the compression efficiency is improved; when the supercharging compression ratio of the compressed medium is relatively low and the requirement on displacement is high, the first compression cavity 16 and the second compression cavity 17 are jointly used as a first-stage compression cavity, the first compression cavity 16 and the second compression cavity 17 are connected in parallel, and the compression cylinder is compressed in two stages at the moment, so that the displacement is increased;

the water jackets can be arranged outside the first cylinder 1, the second cylinder 2, the first oil-gas mixing cylinder 3 and the second oil-gas mixing cylinder 4 according to actual requirements, so that a better heat dissipation effect is achieved;

the compression cylinder is provided with a displacement sensor on the end positioning plate 5, which can measure the position of the shaft in the compression cylinder.

The working principle is as follows:

as shown in fig. 1-4, the utility model comprises a first cylinder 1, a first oil-gas mixing cylinder 3, a second oil-gas mixing cylinder 4 and a second cylinder 2 from left to right; the two oil-gas mixing cylinders are separated by an oil separating plate 8, the other cylinders are separated by positioning plates, and finally all the cylinder bodies and the positioning plates are fixed together by a pull rod 9; the first compression cavity 16, the second compression cavity 17, the third compression cavity 18 and the hydraulic oil cavity 19 are symmetrically distributed on two sides of the oil separation plate 8; the pistons in the cylinders are connected in series by a through shaft inside the compression cylinder.

When the compression cylinder works, the motor drives the oil pump to inject hydraulic oil into the hydraulic oil cavity 19 to push the shaft and the piston to operate, and the shaft and the piston reciprocate in the compression cylinder by arranging a hydraulic oil reversing system.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. A hydraulically driven compression cylinder for compressing a gas, comprising: an oil isolation plate (8) and a main shaft (6), wherein a first oil-gas mixing cylinder (3) and a second oil-gas mixing cylinder (4) are symmetrically arranged on two sides of the oil isolation plate (8) by taking the oil isolation plate (8) as a center, one side of the oil-gas mixing cylinder I (3) far away from the oil isolating plate (8) is provided with a cylinder I (1), a second cylinder (2) is arranged on one side of the second oil-gas mixing cylinder (4) far away from the oil isolating plate (8), the cylinder I (1), the cylinder II (2), the oil-gas mixing cylinder I (3) and the oil-gas mixing cylinder II (4) are all arranged on the main shaft (6) in series, a first piston (10) is arranged at each end of the main shaft (6), the central line that uses main shaft (6) on main shaft (6) is provided with piston two (11), two as the symmetry axis piston one (10) set up respectively in cylinder one (1) and cylinder two (2), two piston one (10) divide equally cylinder one (1) and cylinder two (2) into compression chamber one (16) and compression chamber two (17), two respectively piston two (11) set up respectively in oil-gas mixture uses cylinder one (3) and oil-gas mixture uses cylinder two (4), two piston two (11) divide equally into compression chamber three (18) and hydraulic pressure oil pocket (19) with oil-gas mixture uses cylinder one (3) and oil-gas mixture uses cylinder two (4) respectively.

2. A hydraulically driven compression cylinder for compressing gas as claimed in claim 1 wherein: the internal diameter of cylinder (1) and cylinder two (2) is the same, the internal diameter of oil gas is mixed with cylinder (3) and oil gas is mixed with the internal diameter of cylinder two (4) the same, the internal diameter of cylinder (1) is greater than the internal diameter of oil gas is mixed with cylinder (3), connect through oil division board (8) between oil gas is mixed with cylinder (3) and oil gas is mixed with cylinder two (4), all be connected with middle locating plate (7) between cylinder (1) and oil gas is mixed with between cylinder (3) and between cylinder two (2) and oil gas is mixed with cylinder two (4).

3. A hydraulically driven compression cylinder for compressing gas as claimed in claim 2 wherein: the diameter of the main shaft (6) between the two second pistons (11) is larger than that of the main shaft (6) between the first piston (10) and the second piston (11), and the diameters of the main shafts (6) between the first piston (10) and the second piston (11) are the same.

4. A hydraulically driven compression cylinder for compressing gas as claimed in claim 2 wherein: the oil seal structure is characterized in that a first air seal (13) is arranged on the middle positioning plate (7), an oil seal (15) is arranged on the oil isolation plate (8), a second air seal (12) is arranged on the first piston (10), and an oil-gas seal (14) is arranged on the second piston (11).

5. A hydraulically driven compression cylinder for compressing gas as claimed in claim 2 wherein: and an end positioning plate (5) is arranged on one port of the first cylinder (1) far away from the middle positioning plate (7) and one port of the second cylinder (2) far away from the middle positioning plate (7).

6. A hydraulically driven compression cylinder for compressing gas as claimed in claim 5 wherein: the end positioning plate (5), the middle positioning plate (7) and the oil separating plate (8) are connected through a pull rod (9).