Carbon dioxide gas compressor

Through the reciprocating movement of the multi-stage compression structure and the piston, the problem of high energy consumption of the existing carbon dioxide gas compressor is solved, a more efficient compression effect is achieved, and the compression pressure and output of the carbon dioxide gas are improved.

CN223282180UActive Publication Date: 2025-08-29INNER MONGOLIA SIHAI GAS CO LTD +2
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Patent Information

Application Number
CN202422804729.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-08-29
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

Existing carbon dioxide gas compressors need to consume more energy at low inlet pressures to achieve the required pressure, resulting in a reduced compression yield.

Method used

It adopts a multi-stage compression structure, including first-stage compression, second-stage compression and three-stage compression. Combined with the shell, cylinder, intake valve, exhaust valve, compression chamber, crankshaft, connecting rod, sleeve rod, push rod and piston, multi-stage compression is achieved through the reciprocating movement of the piston, reducing the compression ratio and increasing the intake pressure.

Benefits of technology

Through the multi-stage compression structure, the compression energy consumption is reduced and the compression pressure and yield of carbon dioxide gas is increased.

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Abstract

The utility model provides a carbon dioxide gas compressor, which relates to the field of carbon dioxide gas compressors and comprises a base, a driving component is mounted on one side of the top of the base, and a first-stage compression mechanism, a second-stage compression mechanism, a third-stage compression mechanism and a compression mechanism are further mounted on the other side of the top of the base. The first-stage compression mechanism, the second-stage compression mechanism and the third-stage compression mechanism are used for conducting multi-stage compression on carbon dioxide gas. The compression mechanism comprises a shell, a cylinder body, an air inlet valve, an exhaust valve, a compression cavity, a crankshaft, a connecting rod, a sleeve rod, a push rod and a piston. By arranging the shell, the cylinder body, the air inlet valve, the exhaust valve, the compression chamber, the crankshaft, the connecting rod, the sleeve rod, the push rod and the pistons, the effect of compressing carbon dioxide gas is achieved, the pistons reciprocate in the inner cavity of the compression chamber, the two pistons conduct compression at the same time, high air inlet pressure can be borne, and the compression efficiency is improved. Therefore, the compression ratio can be reduced, and the compression energy consumption can be reduced.
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Description

Technical Field

[0001] The utility model belongs to the field of carbon dioxide gas compressors, in particular to a carbon dioxide gas compressor. Background Art

[0002] A CO2 gas compressor is a device specifically designed to compress CO2 gas. Its working principle is to mechanically compress CO2 gas to the required pressure for storage, transportation, or use in various industrial processes.

[0003] Carbon dioxide gas enters the cylinder through the intake pipe, and the gas is compressed by the reciprocating motion of the piston in the cylinder. The intake system stores the carbon dioxide gas in the cylinder, and the movement of the piston pressurizes the gas. After reaching a certain pressure, the exhaust system transports the pressurized gas out, thereby achieving the pressurization of the carbon dioxide gas. However, when the carbon dioxide gas compressor is in use, the compression ratio is relatively high due to the low inlet pressure, and more energy consumption is required to compress the gas to a certain pressure, thereby reducing the compression output of the carbon dioxide gas.

[0004] In summary, the present invention provides a carbon dioxide gas compressor to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A carbon dioxide gas compressor includes a base, a drive assembly is installed on one side of the top of the base, and a first-stage compression, a second-stage compression, a third-stage compression and a compression mechanism are also installed on the other side of the top of the base. The first-stage compression, the second-stage compression and the third-stage compression are used to perform multi-stage compression of carbon dioxide gas. The compression mechanism includes a shell, a cylinder, an intake valve, an exhaust valve, a compression chamber, a crankshaft, a connecting rod, a sleeve rod, a push rod and a piston. The first-stage compression, the second-stage compression and the third-stage compression are all composed of a cylinder, an intake valve, an exhaust valve, a compression chamber, a connecting rod, a sleeve rod, a push rod and a piston. The drive assembly is used to drive the crankshaft to rotate, the shell is fixedly connected to the base, the cylinder is respectively installed on the front and back of the shell, the compression chamber is arranged at one end of the cylinder body cavity, and the piston is installed in the inner cavity of the compression chamber.

[0007] Furthermore, in the present invention, a gas tank is installed at the rear end of the top of the base, and the gas tank is connected to the compression mechanism through a pipeline. The gas tank is used to buffer the carbon dioxide gas after each stage of compression.

[0008] Furthermore, in the present invention, the driving assembly includes a motor, a gearbox, a coupling and a transmission shaft, and the motor and the gearbox are both fixedly connected to the base.

[0009] Furthermore, in the present invention, the output shaft of the motor is transmission-connected to the input shaft of the gear box via a coupling, and the output shaft of the gear box is fixedly connected to the transmission shaft.

[0010] Furthermore, in the present invention, the crankshaft is installed in the inner cavity of the housing and is movably connected to the inner wall of the housing through a bearing, and the other end of the transmission shaft passes through the inner cavity of the housing and is fixedly connected to the crankshaft.

[0011] Furthermore, in the present invention, one end of the connecting rod is sleeved on the surface of the crankshaft, and the other end of the connecting rod passes through the inner cavity of the cylinder body. The sleeve rod is fixed to the end of the connecting rod located in the inner cavity of the cylinder body, and one end of the push rod is sleeved on the surface of the sleeve rod, and the other end of the push rod passes through the inner cavity of the compression chamber and is movably connected to the piston through a tapered pin.

[0012] Beneficial effects: The utility model has the following beneficial effects:

[0013] The utility model achieves the effect of multi-stage compression by arranging one-stage compression, two-stage compression and three-stage compression, thereby increasing the compression pressure of carbon dioxide gas; and achieves the effect of compressing carbon dioxide gas by arranging a shell, a cylinder body, an intake valve, an exhaust valve, a compression chamber, a crankshaft, a connecting rod, a sleeve rod, a push rod and a piston; the carbon dioxide gas is compressed by the reciprocating motion of the piston in the inner cavity of the compression chamber; and the simultaneous compression of two pistons can bear a higher intake pressure, thereby reducing the compression ratio and further reducing the compression energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the cylinder body of the utility model;

[0016] Figure 3 This is a schematic structural diagram of the compression mechanism of the utility model in a separated state;

[0017] Figure 4 It is a schematic diagram of the connection state structure of the drive component of the utility model.

[0018] In the picture:

[0019] 1. Base; 2. Drive assembly; 201. Motor; 202. Gearbox; 203. Coupling; 204. Drive shaft; 3. Primary compression; 4. Secondary compression; 5. Tertiary compression; 6. Gas tank; 7. Compression mechanism; 701. Housing; 702. Cylinder block; 703. Inlet valve; 704. Exhaust valve; 705. Compression chamber; 706. Crankshaft; 707. Connecting rod; 708. Sleeve rod; 709. Push rod; 710. Piston. DETAILED DESCRIPTION

[0020] In order to better understand the technical content of the present invention, specific embodiments are given and described as follows in conjunction with the accompanying drawings. Various aspects of the present invention are described in this disclosure with reference to the accompanying drawings, in which many illustrative embodiments are shown. The embodiments of the present disclosure are not necessarily defined to include all aspects of the present invention. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the present invention are not limited to any implementation method. In addition, some aspects disclosed in the present invention can be used alone or in any appropriate combination with other aspects disclosed in the present invention.

[0021] Example 1

[0022] like Figure 1-4 As shown in the figure, the first embodiment of the present invention provides a carbon dioxide gas compressor, including a base 1, a driving assembly 2 is installed on one side of the top of the base 1, and a first-stage compression 3, a second-stage compression 4, a third-stage compression 5 and a compression mechanism 7 are installed on the other side of the top of the base 1. The first-stage compression 3, the second-stage compression 4 and the third-stage compression 5 are used to perform multi-stage compression on the carbon dioxide gas. The compression mechanism 7 includes a shell 701, a cylinder 702, an intake valve 703, an exhaust valve 704, a compression chamber 705, a crankshaft 706, a connecting rod 707, and a sleeve rod. 708, push rod 709 and piston 710, the first-stage compression 3, the second-stage compression 4 and the third-stage compression 5 are all composed of a cylinder body 702, an intake valve 703, an exhaust valve 704, a compression chamber 705, a connecting rod 707, a sleeve rod 708, a push rod 709 and a piston 710. The drive assembly 2 is used to drive the crankshaft 706 to rotate. The shell 701 is fixedly connected to the base 1. The cylinder body 702 is respectively installed on the front and back of the shell 701. The compression chamber 705 is arranged at one end of the inner cavity of the cylinder body 702, and the piston 710 is installed in the inner cavity of the compression chamber 705.

[0023] like Figure 1-4As shown, a multi-stage compression effect can be achieved through the first-stage compression 3, the second-stage compression 4 and the third-stage compression 5. The first-stage compression 3 is connected to the intake end, and the drive assembly 2 provides power to the crankshaft 706, so that the first-stage compression 3, the second-stage compression 4 and the third-stage compression 5 can operate simultaneously. When the crankshaft 706 rotates, the piston 710 is driven to reciprocate in the inner cavity of the compression chamber 705 through the connecting rod 707, the sleeve rod 708 and the push rod 709. When the piston 710 pushes, the intake valve 703 is closed, the carbon dioxide gas is compressed, and is discharged through the exhaust valve 704. The pipeline transports the gas to the inner cavity buffer of the gas tank 6 and is compressed by two pistons 710. It can bear a higher intake pressure, thereby reducing the compression ratio and further reducing the compression energy consumption. When the carbon dioxide gas is taken in, the exhaust valve 704 is in a closed state. When the carbon dioxide gas is compressed, the intake valve 703 is in a closed state and the exhaust valve 704 is in an open state. The piston 710 reciprocates in the inner cavity of the compression chamber 705, thereby compressing the carbon dioxide gas. The compressed gas after each stage of compression can be connected to an external cooler to cool the gas.

[0024] Example 2

[0025] Reference Figure 1-4 , which is the second embodiment of the present utility model, and this embodiment is based on the previous embodiment.

[0026] In this embodiment, a gas tank 6 is installed at the rear end of the top of the base 1. The gas tank 6 is connected to the compression mechanism 7 through a pipeline. The gas tank 6 is used to buffer the carbon dioxide gas compressed at each stage.

[0027] The driving assembly 2 includes a motor 201 , a gear box 202 , a coupling 203 and a transmission shaft 204 . The motor 201 and the gear box 202 are both fixedly connected to the base 1 .

[0028] The output shaft of the motor 201 is in transmission connection with the input shaft of the gear box 202 via the coupling 203 , and the output shaft of the gear box 202 is fixedly connected to the transmission shaft 204 .

[0029] The crankshaft 706 is installed in the inner cavity of the housing 701 and is movably connected to the inner wall of the housing 701 through a bearing. The other end of the transmission shaft 204 passes through the inner cavity of the housing 701 and is fixedly connected to the crankshaft 706.

[0030] One end of the connecting rod 707 is sleeved on the surface of the crankshaft 706, and the other end of the connecting rod 707 passes through the inner cavity of the cylinder body 702. The sleeve rod 708 is fixed to the end of the connecting rod 707 located in the inner cavity of the cylinder body 702. One end of the push rod 709 is sleeved on the surface of the sleeve rod 708, and the other end of the push rod 709 passes through the inner cavity of the compression chamber 705 and is movably connected to the piston 710 through a tapered pin.

[0031] like Figure 1-4As shown, the output shaft of the motor 201 drives the gear box 202 to work through the coupling 203, and the output shaft of the gear box 202 drives the crankshaft 706 to rotate in the inner cavity of the shell 701 through the transmission shaft 204. When the crankshaft 706 rotates, it drives the piston 710 to reciprocate in the inner cavity of the compression chamber 705 through the connecting rod 707, the sleeve rod 708 and the push rod 709. When the piston 710 pushes, the intake valve 703 is closed to compress the carbon dioxide gas, and the carbon dioxide gas is discharged through the exhaust valve 704 and transported to the inner cavity buffer of the gas tank 6 through the pipeline. The gas tank 6 is provided with three, which correspond to each stage of compression respectively, and then are transported to the next stage of compression through the pipeline. When the piston 710 contracts, the carbon dioxide gas is transported through the intake valve 703 and compressed by the two pistons 710. It can bear a higher intake pressure, thereby reducing the compression ratio, thereby reducing the compression energy consumption, and increasing the compression output of the carbon dioxide gas.

[0032] When in use, the output shaft of the motor 201 drives the gear box 202 to work through the coupling 203, and the output shaft of the gear box 202 drives the crankshaft 706 to rotate in the inner cavity of the shell 701 through the transmission shaft 204. When the crankshaft 706 rotates, it drives the piston 710 to reciprocate in the inner cavity of the compression chamber 705 through the connecting rod 707, the sleeve rod 708 and the push rod 709. When the piston 710 is pushed, the intake valve 703 is closed, the carbon dioxide gas is compressed and discharged through the exhaust valve 704 to the inner cavity buffer of the gas tank 6 through the pipeline, and then transported to the next stage of compression through the pipeline. When the piston 710 contracts, the carbon dioxide gas is transported through the intake valve 703 and compressed by the two pistons 710. It can bear a higher intake pressure, thereby reducing the compression ratio, and then reducing the compression energy consumption and increasing the compression output of the carbon dioxide gas.

[0033] The standard parts used in this application document can all be purchased from the market, and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field, which is common knowledge in this field. In addition, this application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0034] While the present invention has been described above with reference to preferred embodiments, this is not intended to limit the present invention. Persons skilled in the art will readily appreciate that various modifications and variations may be made without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A carbon dioxide gas compressor comprising a base (1), characterized in that: A driving assembly (2) is installed on one side of the top of the base (1), and a first-stage compression (3), a second-stage compression (4), a third-stage compression (5) and a compression mechanism (7) are also installed on the other side of the top of the base (1). The first-stage compression (3), the second-stage compression (4) and the third-stage compression (5) are used to perform multi-stage compression on carbon dioxide gas. The compression mechanism (7) includes a shell (701), a cylinder (702), an intake valve (703), an exhaust valve (704), a compression chamber (705), a crankshaft (706), a connecting rod (707), a sleeve rod (708), a push rod (709) and a piston (710). The first-stage compression (3), the two-stage compression (4) and the three-stage compression (5) are all composed of a cylinder body (702), an intake valve (703), an exhaust valve (704), a compression chamber (705), a connecting rod (707), a sleeve rod (708), a push rod (709) and a piston (710), the driving assembly (2) is used to drive the crankshaft (706) to rotate, the shell (701) is fixedly connected to the base (1), the cylinder body (702) is respectively installed on the front and back sides of the shell (701), the compression chamber (705) is arranged at one end of the inner cavity of the cylinder body (702), and the piston (710) is installed in the inner cavity of the compression chamber (705).

2. The carbon dioxide gas compressor according to claim 1, characterized in that: A gas tank (6) is installed at the rear end of the top of the base (1), and the gas tank (6) is connected to the compression mechanism (7) through a pipeline. The gas tank (6) is used to buffer the carbon dioxide gas after each stage of compression.

3. The carbon dioxide gas compressor according to claim 1, characterized in that: The drive assembly (2) comprises a motor (201), a gear box (202), a coupling (203) and a transmission shaft (204); the motor (201) and the gear box (202) are both fixedly connected to the base (1).

4. The carbon dioxide gas compressor according to claim 3, characterized in that: The output shaft of the motor (201) is connected to the input shaft of the gear box (202) through a coupling (203), and the output shaft of the gear box (202) is fixedly connected to the transmission shaft (204).

5. The carbon dioxide gas compressor according to claim 4, characterized in that: The crankshaft (706) is installed in the inner cavity of the housing (701) and is movably connected to the inner wall of the housing (701) through a bearing. The other end of the transmission shaft (204) passes through the inner cavity of the housing (701) and is fixedly connected to the crankshaft (706).

6. The carbon dioxide gas compressor according to claim 1, characterized in that: One end of the connecting rod (707) is sleeved on the surface of the crankshaft (706), and the other end of the connecting rod (707) passes through the inner cavity of the cylinder body (702). The sleeve rod (708) is fixed to one end of the connecting rod (707) located in the inner cavity of the cylinder body (702). One end of the push rod (709) is sleeved on the surface of the sleeve rod (708), and the other end of the push rod (709) passes through the inner cavity of the compression chamber (705) and is movably connected to the piston (710) through a tapered pin.