CN221096785U - Stepped circulation liquid seal cylinder - Google Patents
Stepped circulation liquid seal cylinder Download PDFInfo
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- CN221096785U CN221096785U CN202322267518.9U CN202322267518U CN221096785U CN 221096785 U CN221096785 U CN 221096785U CN 202322267518 U CN202322267518 U CN 202322267518U CN 221096785 U CN221096785 U CN 221096785U
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- 239000007788 liquid Substances 0.000 title claims abstract description 42
- 210000004907 gland Anatomy 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 239000002608 ionic liquid Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the technical field of circulating liquid seal compressors, in particular to a stepped circulating liquid seal cylinder. The hydraulic cylinder comprises a main cylinder body, wherein a cylinder gland is arranged at one end of the main cylinder body, an auxiliary cylinder body is arranged at the other end of the main cylinder body, a cylinder base is arranged at the other end of the auxiliary cylinder body, a main piston is movably arranged in a main cylinder body, an auxiliary piston is movably arranged in the auxiliary cylinder body, a low-pressure cavity is formed in the main cylinder body between the main piston and the cylinder gland, and a low-pressure air inlet and a low-pressure air outlet which are communicated with the low-pressure cavity are arranged on the side wall of the main cylinder body; a high-pressure cavity is formed in the auxiliary cylinder body between the auxiliary piston and the cylinder base, and a high-pressure air inlet and a high-pressure air outlet which are communicated with the high-pressure cavity are formed in the side wall of the auxiliary cylinder body. When the main piston and the auxiliary piston reciprocate, the gas is pressurized at one stage through the low-pressure cavity, the pressurized gas enters the high-pressure cavity through the pipeline to be pressurized at two stages, and finally is discharged outwards, and the low-pressure cavity and the high-pressure cavity are matched with each other to perform differential stage pressurization on the compressed gas, so that the compression efficiency is greatly improved.
Description
Technical field:
The utility model relates to the technical field of circulating liquid seal compressors, in particular to a stepped circulating liquid seal cylinder.
The background technology is as follows:
The circulating liquid seal compressor drives a piston in a cylinder body of the cylinder to reciprocate mainly through a driving mechanism so as to realize supercharging of gas. As in the patent application publication CN114439728a, a circulating liquid seal compressor is disclosed which is used for storing circulating liquid by providing an annular cavity between a piston and a cylinder, and by means of which lubrication, cooling and sealing are achieved. The pressurizing mode of the cylinder is a single-acting cylinder, the cylinder body is provided with an air inlet and an air outlet, air enters the cylinder body from the air inlet, and high-pressure air is discharged from the air outlet after being pressurized in the cylinder body.
In summary, the problem of differential pressure pressurization of compressed gas in a circulating liquid seal compressor has become a technical problem to be solved in the industry.
The utility model comprises the following steps:
The utility model provides a stepped circulation liquid seal cylinder for overcoming the defects of the prior art, and solves the problem of low compression efficiency of the conventional single-acting cylinder.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
The step-difference type circulating hydraulic seal cylinder comprises a main cylinder body, wherein a cylinder gland is arranged at one end of the main cylinder body, an auxiliary cylinder body is arranged at the other end of the main cylinder body, a cylinder base is arranged at the other end of the auxiliary cylinder body, piston structures are arranged in the main cylinder body and the auxiliary cylinder body, each piston structure comprises a main piston, an auxiliary piston and a piston rod which connects the main piston and the auxiliary piston into a whole, the main piston is movably arranged in the main cylinder body, the auxiliary piston is movably arranged in the auxiliary cylinder body, and the piston rod is movably arranged in the cylinder gland;
The outer side surface of the main piston is provided with a main circulation cavity, the main circulation cavity is used for storing circulation liquid to cool, lubricate and hydraulically seal a main cylinder body, the side wall of the main cylinder body is provided with a main liquid inlet and a main liquid outlet which are communicated with the main circulation cavity, a low-pressure cavity is formed in the main cylinder body between the main piston and a cylinder gland, and the side wall of the main cylinder body is provided with a low-pressure air inlet and a low-pressure air outlet which are communicated with the low-pressure cavity;
The auxiliary piston is characterized in that an auxiliary circulating cavity is formed in the outer side surface of the auxiliary piston and used for storing circulating liquid to cool, lubricate and seal an auxiliary cylinder body, an auxiliary liquid inlet and an auxiliary liquid outlet which are communicated with the auxiliary circulating cavity are formed in the side wall of the auxiliary cylinder body, a high-pressure cavity is formed in the auxiliary cylinder body between the auxiliary piston and the cylinder base, and a high-pressure air inlet and a high-pressure air outlet which are communicated with the high-pressure cavity are formed in the side wall of the auxiliary cylinder body.
The main cylinder body is connected with the auxiliary cylinder body through bolts and is provided with a sealing ring for sealing.
An air inlet valve is arranged at the low-pressure air inlet, and an air outlet valve is arranged at the low-pressure air outlet.
And the high-pressure air inlet and the high-pressure air outlet are provided with air inlet and outlet valves.
The volume of the high pressure chamber is smaller than the volume of the low pressure chamber.
The low-pressure air outlet is connected with the high-pressure air inlet through a pipeline.
The utility model adopts the scheme and has the following advantages:
Through setting up master cylinder body and vice cylinder body, master piston movable mounting is in the master cylinder body, vice piston movable mounting is in vice cylinder body, form the low pressure chamber in the master cylinder body between master piston and the cylinder gland, form the high pressure chamber in the vice cylinder body between slave piston and the cylinder base, when master piston and the vice piston reciprocating motion, carry out the one-level pressure boost to gas through the low pressure chamber earlier, the gas after the pressure boost gets into the high pressure chamber through the pipeline and carries out the second grade pressure boost, finally outwards discharge again, the low pressure chamber and the high pressure chamber mutually support and can carry out the step difference pressure boost to compressed gas, compression efficiency has been promoted greatly.
Description of the drawings:
Fig. 1 is a schematic cross-sectional view of the present utility model.
In the figure, 1, a main cylinder body, 2, a cylinder gland, 3, a secondary cylinder body, 4, a cylinder base, 5, a main piston, 6, a secondary piston, 7, a piston rod, 8, a main circulation cavity, 9, a main liquid inlet, 10, a main liquid outlet, 11, a low-pressure cavity, 12, a low-pressure air inlet, 13, a low-pressure air outlet, 14, a secondary circulation cavity, 15, a secondary liquid inlet, 16, a secondary liquid outlet, 17, a high-pressure cavity, 18, a high-pressure air inlet, 19, a high-pressure air outlet, 20, an air inlet valve, 21, an air outlet valve, 22 and an air inlet and outlet valve.
The specific embodiment is as follows:
In order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings.
As shown in fig. 1, the stepped circulation liquid seal cylinder comprises a main cylinder body 1, wherein a cylinder gland 2 is arranged at one end of the main cylinder body 1, an auxiliary cylinder body 3 is arranged at the other end of the main cylinder body 1, a cylinder base 4 is arranged at the other end of the auxiliary cylinder body 3, piston structures are arranged in the main cylinder body 1 and the auxiliary cylinder body 3, each piston structure comprises a main piston 5, an auxiliary piston 6 and a piston rod 7 which connects the main piston 5 and the auxiliary piston 6 into a whole, the main piston 5 is movably arranged in the main cylinder body 1, the auxiliary piston 6 is movably arranged in the auxiliary cylinder body 3, and the piston rod 7 is movably arranged in the cylinder gland 2;
The outer side surface of the main piston 5 is provided with a main circulation cavity 8, the main circulation cavity 8 is used for storing circulation liquid to cool, lubricate and seal the main cylinder body 1, sealing rings are respectively arranged on two sides of the main circulation cavity 8 to seal, the side wall of the main cylinder body 1 is provided with a main liquid inlet 9 and a main liquid outlet 10 which are communicated with the main circulation cavity 8, a low-pressure cavity 11 is formed in the main cylinder body 1 between the main piston 5 and the cylinder gland 2, and the side wall of the main cylinder body 1 is provided with a low-pressure air inlet 12 and a low-pressure air outlet 13 which are communicated with the low-pressure cavity 11;
The outside surface of auxiliary piston 6 is equipped with auxiliary circulation chamber 14, and auxiliary circulation chamber 14 is used for storing circulating liquid and carries out cooling, lubrication and liquid seal to auxiliary cylinder body 3, and the both sides of auxiliary circulation chamber 14 are equipped with the sealing washer respectively and carry out the sealedly, and auxiliary cylinder body 3 lateral wall is equipped with auxiliary inlet 15 and auxiliary outlet 16 that are linked together with auxiliary circulation chamber 14, forms high-pressure chamber 17 in the auxiliary cylinder body 3 between auxiliary piston 6 and the cylinder base 4, and auxiliary cylinder body 3 lateral wall is equipped with high-pressure air inlet 18 and high-pressure air outlet 19 that are linked together with high-pressure chamber 17.
The main cylinder body 1 and the auxiliary cylinder body 2 are connected through bolts and are provided with sealing rings for sealing.
An air inlet valve 20 is arranged at the low-pressure air inlet 12, and an air outlet valve 21 is arranged at the low-pressure air outlet 13.
The high-pressure air inlet 18 and the high-pressure air outlet 19 are provided with an air inlet and outlet valve 22.
The volume of the high-pressure chamber 17 is smaller than the volume of the low-pressure chamber 11, and the smaller the volume is, the larger the pressure on the gas is, and the larger the volume is, the smaller the pressure on the gas is.
The low-pressure air outlet 13 is connected with the high-pressure air inlet 18 through a pipeline, so that the air pressurized in the low-pressure cavity 11 can enter the high-pressure cavity 17 for secondary pressurization.
The circulating liquid in the main circulation chamber 8 and the sub-circulation chamber 14 includes a liquid such as lubricating oil, water, or ionic liquid. Preferably, the application adopts ionic liquid, because the ionic liquid has the advantages of no pollution, easy separation from products, easy recovery and repeated recycling, and even if leaked, the ionic liquid does not pollute the gas.
Working principle:
When the piston rod 7 works, the main piston 5 and the auxiliary piston 6 are driven to synchronously reciprocate in the main cylinder body 1 and the auxiliary cylinder body 3, when the main piston 5 and the auxiliary piston 6 move leftwards, the low-pressure cavity 11 is in a compressed state, the high-pressure cavity 17 is in an air inlet state, specifically, the main piston 5 carries out primary pressurization on air in the low-pressure cavity 11, and the air in the low-pressure cavity 11 enters the high-pressure cavity 17 through the low-pressure air outlet 13, the pipeline and the high-pressure air inlet 18; when the main piston 5 and the auxiliary piston 6 move rightward, the high-pressure chamber 17 is in a compressed state, the low-pressure chamber 11 is in an air inlet state, specifically, the auxiliary piston 6 pressurizes the air in the high-pressure chamber 17 in two stages, the pressurized air is discharged outwards through the high-pressure air outlet 19, and the air enters the low-pressure chamber 11 from the low-pressure air inlet 12. The step-difference type circulating liquid seal compression cylinder is repeatedly realized, the low-pressure cavity 11 and the high-pressure cavity 17 are matched with each other, so that step-difference type pressurization can be carried out on compressed gas, and the compression efficiency is greatly improved.
The above embodiments are not to be taken as limiting the scope of the utility model, and any alternatives or modifications to the embodiments of the utility model will be apparent to those skilled in the art and fall within the scope of the utility model.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Claims (6)
1. The utility model provides a level difference formula circulation liquid seal cylinder which characterized in that: the hydraulic cylinder comprises a main cylinder body, wherein a cylinder gland is arranged at one end of the main cylinder body, an auxiliary cylinder body is arranged at the other end of the main cylinder body, a cylinder base is arranged at the other end of the auxiliary cylinder body, piston structures are arranged in the main cylinder body and the auxiliary cylinder body, each piston structure comprises a main piston, an auxiliary piston and a piston rod which connects the main piston and the auxiliary piston into a whole, the main piston is movably arranged in a main cylinder body, the auxiliary piston is movably arranged in the auxiliary cylinder body, and the piston rod is movably arranged in the cylinder gland;
The outer side surface of the main piston is provided with a main circulation cavity, the main circulation cavity is used for storing circulation liquid to cool, lubricate and hydraulically seal a main cylinder body, the side wall of the main cylinder body is provided with a main liquid inlet and a main liquid outlet which are communicated with the main circulation cavity, a low-pressure cavity is formed in the main cylinder body between the main piston and a cylinder gland, and the side wall of the main cylinder body is provided with a low-pressure air inlet and a low-pressure air outlet which are communicated with the low-pressure cavity;
The auxiliary piston is characterized in that an auxiliary circulating cavity is formed in the outer side surface of the auxiliary piston and used for storing circulating liquid to cool, lubricate and seal an auxiliary cylinder body, an auxiliary liquid inlet and an auxiliary liquid outlet which are communicated with the auxiliary circulating cavity are formed in the side wall of the auxiliary cylinder body, a high-pressure cavity is formed in the auxiliary cylinder body between the auxiliary piston and the cylinder base, and a high-pressure air inlet and a high-pressure air outlet which are communicated with the high-pressure cavity are formed in the side wall of the auxiliary cylinder body.
2. The differential circulation liquid seal cylinder according to claim 1, wherein: the main cylinder body is connected with the auxiliary cylinder body through bolts and is provided with a sealing ring for sealing.
3. The differential circulation liquid seal cylinder according to claim 1, wherein: an air inlet valve is arranged at the low-pressure air inlet, and an air outlet valve is arranged at the low-pressure air outlet.
4. The differential circulation liquid seal cylinder according to claim 1, wherein: and the high-pressure air inlet and the high-pressure air outlet are provided with air inlet and outlet valves.
5. The differential circulation liquid seal cylinder according to claim 1, wherein: the volume of the high pressure chamber is smaller than the volume of the low pressure chamber.
6. The differential circulation liquid seal cylinder according to claim 1, wherein: the low-pressure air outlet is connected with the high-pressure air inlet through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322267518.9U CN221096785U (en) | 2023-08-22 | 2023-08-22 | Stepped circulation liquid seal cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322267518.9U CN221096785U (en) | 2023-08-22 | 2023-08-22 | Stepped circulation liquid seal cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221096785U true CN221096785U (en) | 2024-06-07 |
Family
ID=91305590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322267518.9U Active CN221096785U (en) | 2023-08-22 | 2023-08-22 | Stepped circulation liquid seal cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221096785U (en) |
-
2023
- 2023-08-22 CN CN202322267518.9U patent/CN221096785U/en active Active
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