Ionic liquid anti-impact structure of compression air cylinder

Abstract

The utility model relates to the technical field of ionic liquid cylinders, in particular to an ionic liquid anti-impact structure of a compression cylinder. Comprising a cylinder body, an air inlet and outlet channel is arranged between an air inlet valve and an air outlet valve, a piston is arranged in the cylinder body, an air compression cavity is formed between the piston and a front end cover, ionic liquid is arranged at the top of the piston and used for cooling, lubricating and sealing the position between the piston and the cylinder body, an isolation cover plate is installed on the lower side of the front end cover, and a plurality of vent holes are formed in the isolation cover plate. The gas compression cavity is communicated with the gas inlet and outlet channel through the vent hole, and the isolation cover plate and the vent hole are used for reducing impact of high-pressure gas on the ionic liquid. When high-pressure gas enters the gas compression cavity through the vent hole, the high-pressure gas can be prevented from directly impacting the ionic liquid, impact on the ionic liquid is reduced, the isolation cover plate can block the ionic liquid, excessive ionic liquid is prevented from entering the air inlet and outlet channel after being impacted, the discharge amount of the ionic liquid along with the gas is reduced, the recycling difficulty is reduced, and waste of the ionic liquid is avoided. And the cost is reduced.

Description

Technical field:

[0001] The utility model relates to the technical field of ionic liquid cylinders, in particular to an ionic liquid anti-impact structure of a compression cylinder. Background technology:

[0002] Currently, ion liquid-sealed compression cylinders are a new type of equipment used to pressurize gas in hydrogen refueling stations. The structure is described in patent application CN116044712A, which discloses an ionic liquid compressor. By injecting ionic liquid into the compression chamber of the cylinder, it achieves cooling and lubrication of the piston and improves the sealing effect between the piston and the cylinder. However, in actual operation, high-pressure gas enters the ionic liquid circulation process. Due to the high pressure of the high-pressure gas in the compression chamber, some of the ionic liquid in the compression chamber is impacted into the airway and discharged with the gas. Although an external ionic liquid recovery device is also provided, the excessive discharge of ionic liquid not only increases the recovery difficulty, but also inevitably results in ionic liquid waste and increased costs. Currently, there is no good solution.

[0003] In summary, the impact of high-pressure gas in the compression cylinder on the ionic liquid has become a technical problem that urgently needs to be solved in the industry. Utility model content:

[0004] In order to make up for the deficiencies of the prior art, the utility model provides an ionic liquid anti-impact structure for a compression cylinder, which solves the problem that the high-pressure gas in the compression chamber impacts the ionic liquid and enters the airway, causing waste.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] An ionic liquid impact-proof structure for a compressed gas cylinder comprises a cylinder body, a front end cover and a rear end cover are provided at both ends of the cylinder body, an intake valve and an exhaust valve are provided on the front end cover, an intake and exhaust passage is provided between the intake and exhaust valves, a piston is provided in the cylinder body, a gas compression chamber is formed between the piston and the front end cover, an ionic liquid is provided on the top of the piston, and the ionic liquid is used to cool, lubricate and seal the piston and the cylinder body, an isolation cover plate is installed on the lower side of the front end cover, a plurality of vents are provided on the isolation cover plate, the vents connect the gas compression chamber with the intake and exhaust passages, and the isolation cover plate and the vents are used to reduce the impact of high-pressure gas on the ionic liquid.

[0007] The isolation cover plate is pressed and fixed by the front end cover and the step on the inner wall of the cylinder body.

[0008] A boss is provided in the middle of the top of the piston, an annular groove is provided at the edge of the boss, and the ionic liquid is arranged in the annular groove.

[0009] The vent hole corresponds to the position of the boss area on the top of the piston.

[0010] The cavity between the piston and the rear end cover is a hydraulic cavity, which is used to drive the piston to move up and down. The rear end cover is provided with a hydraulic oil inlet and outlet.

[0011] A plurality of sealing rings and guide rings are arranged between the piston and the cylinder body.

[0012] An ionic liquid inlet is provided on a side wall of the cylinder body on one side of the gas compression chamber.

[0013] The utility model adopts the above solution and has the following advantages:

[0014] By installing an isolation cover on the lower side of the front end cover, a number of vent holes are provided on the isolation cover, which connect the gas compression chamber with the intake and exhaust channels. When high-pressure gas enters the gas compression chamber through the vent holes, the high-pressure gas can be prevented from directly impacting the ion liquid, thereby reducing the impact on the ion liquid. The isolation cover can also block the ion liquid, thereby preventing excessive ion liquid from entering the intake and exhaust channels after being impacted, reducing the amount of ion liquid discharged with the gas, alleviating the difficulty of recovery, avoiding waste of ion liquid, and reducing costs. Description of the drawings:

[0015] Figure 1 It is a structural diagram of the present utility model.

[0016] In the figure, 1. cylinder body, 2. front end cover, 3. rear end cover, 4. intake valve, 5. exhaust valve, 6. piston, 7. gas compression chamber, 8. ionic liquid, 9. intake and exhaust channels, 10. isolation cover, 11. vent, 12. hydraulic chamber, 13. hydraulic oil inlet and outlet, 14. sealing ring, 15. guide ring, 16. ionic liquid inlet, 17. boss, 18. annular groove. Specific implementation method:

[0017] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0018] like Figure 1 As shown, an ionic liquid anti-impact structure of a compression cylinder includes a cylinder body 1, a front end cover 2 and a rear end cover 3 are provided at both ends of the cylinder body 1, an intake valve 4 and an exhaust valve 5 are provided on the front end cover 2, an intake and exhaust channel 9 is provided between the intake valve 4 and the exhaust valve 5, a piston 6 is provided in the cylinder body 1, a gas compression chamber 7 is provided between the piston 6 and the front end cover 2, an ionic liquid 8 is provided on the top of the piston 6, and the ionic liquid 8 is used to cool, lubricate and seal the piston 6 and the cylinder body 1, an isolation cover plate 10 is installed on the lower side of the front end cover 2, and a plurality of vents 11 are provided on the isolation cover plate 10, which connect the gas compression chamber 7 with the intake and exhaust channels 9, and the isolation cover plate 10 and the vents 11 are used to reduce the impact of high-pressure gas on the ionic liquid.

[0019] The isolation cover plate 10 is pressed and fixed by the front end cover 2 and the step of the inner wall of the cylinder body 1 .

[0020] A boss 17 is provided in the middle of the top of the piston 6 , an annular groove 18 is provided at the edge of the boss 17 , and the ionic liquid 8 is provided in the annular groove 18 .

[0021] The vent hole 11 corresponds to the area of ​​the boss 17 on the top of the piston 6. When the high-pressure gas enters through the vent hole 11, it will directly act on the boss 17 on the top of the piston 6, avoiding the high-pressure gas from directly impacting the ionic liquid 8, thereby reducing the impact on the ionic liquid.

[0022] The cavity between the piston 6 and the rear end cover 3 is a hydraulic cavity 12, which is used to drive the piston 6 to move up and down. The rear end cover 3 is provided with a hydraulic oil inlet and outlet 13 to realize hydraulic drive of the piston 6.

[0023] A plurality of sealing rings 14 and guide rings 15 are provided between the piston 6 and the cylinder body 1 to perform sealing and guiding functions.

[0024] An ionic liquid inlet 16 is provided on the side wall of the cylinder body 1 on one side of the gas compression chamber 7 , through which ionic liquid can be replenished into the gas compression chamber 7 .

[0025] Working principle:

[0026] During operation, hydraulic oil enters and exits the hydraulic chamber 12 through the hydraulic oil inlet and outlet 13, which can realize the hydraulic drive of the piston 6, causing the piston 6 to move up and down. When the piston 6 moves downward, the gas enters the gas compression chamber 7 through the intake valve 4, the intake and exhaust channel 9, and the vent 11 in sequence. When the piston 6 moves upward, the gas in the gas compression chamber 7 is compressed and pressurized, and then discharged outward through the vent 11, the intake and exhaust channel 9, and the exhaust valve 5 in sequence, thereby achieving gas pressurization. When the high-pressure gas enters the gas compression chamber 7 through the vent 11, on the one hand, the high-pressure gas will directly act on the boss 17 on the top of the piston 6, preventing the high-pressure gas from directly impacting the ionic liquid 8, thereby reducing the impact on the ionic liquid. On the other hand, the isolation cover 10 can block the ionic liquid, preventing excessive ionic liquid from entering the intake and exhaust channel 9 after being impacted, reducing the amount of ionic liquid discharged with the gas, and avoiding waste of ionic liquid.

[0027] The above specific implementation methods cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art, any replacement, improvement or transformation made to the implementation methods of the present utility model falls within the protection scope of the present utility model.

[0028] Anything not described in detail in the present invention is well known to those skilled in the art.

Claims

1. An ionic liquid anti-shock structure for a compression cylinder, characterized by: The utility model comprises a cylinder body, wherein a front end cover and a rear end cover are provided at both ends of the cylinder body, an intake valve and an exhaust valve are provided on the front end cover, an intake and exhaust passage is provided between the intake valve and the exhaust valve, a piston is provided in the cylinder body, a gas compression chamber is provided between the piston and the front end cover, an ionic liquid is provided on the top of the piston, and the ionic liquid is used for cooling, lubricating and sealing between the piston and the cylinder body, an isolation cover plate is installed on the lower side of the front end cover, a plurality of vent holes are provided on the isolation cover plate, the vent holes connect the gas compression chamber with the intake and exhaust passages, and the isolation cover plate and the vent holes are used to reduce the impact of the high-pressure gas on the ionic liquid.

2. The ionic liquid anti-shock structure for a compressed air cylinder according to claim 1, characterized in that: The isolation cover plate is pressed and fixed by the front end cover and the step on the inner wall of the cylinder body.

3. The ionic liquid anti-shock structure for a compressed air cylinder according to claim 1, characterized in that: A boss is provided in the middle of the top of the piston, an annular groove is provided at the edge of the boss, and the ionic liquid is arranged in the annular groove.

4. The ionic liquid anti-shock structure for a compressed air cylinder according to claim 3, characterized in that: The vent hole corresponds to the position of the boss area on the top of the piston.

5. The ionic liquid anti-shock structure for a compressed air cylinder according to claim 1, characterized in that: The cavity between the piston and the rear end cover is a hydraulic cavity, which is used to drive the piston to move up and down. The rear end cover is provided with a hydraulic oil inlet and outlet.

6. The ionic liquid anti-shock structure for a compressed air cylinder according to claim 1, characterized in that: A plurality of sealing rings and guide rings are arranged between the piston and the cylinder body.

7. The ionic liquid anti-shock structure for a compressed air cylinder according to claim 1, characterized in that: An ionic liquid inlet is provided on a side wall of the cylinder body on one side of the gas compression chamber.

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