CN221097446U - 90MPa diaphragm compressor hydro-cylinder hydraulic oil side plunger seal structure - Google Patents
90MPa diaphragm compressor hydro-cylinder hydraulic oil side plunger seal structure Download PDFInfo
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- CN221097446U CN221097446U CN202323073192.2U CN202323073192U CN221097446U CN 221097446 U CN221097446 U CN 221097446U CN 202323073192 U CN202323073192 U CN 202323073192U CN 221097446 U CN221097446 U CN 221097446U
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- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 73
- 230000003068 static effect Effects 0.000 claims abstract description 33
- 238000004146 energy storage Methods 0.000 claims abstract description 19
- 230000008093 supporting effect Effects 0.000 claims description 20
- 239000003921 oil Substances 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of diaphragm compressors, in particular to a 90MPa diaphragm compressor cylinder hydraulic oil side plunger sealing structure. The inner wall of the cylinder sleeve is provided with a first open slot, a plurality of support rings with L-shaped cross sections are installed in the first open slot side by side, the inner side of each support ring is respectively provided with a combined sealing ring, the opening end of the first open slot is fixedly provided with a static sealing seat, the inner wall of the static sealing seat is provided with a second open slot, the second open slot is communicated with the first open slot, a spring energy storage sealing ring is installed in the second open slot, the outer wall of the static sealing seat is provided with an annular groove, and static sealing is arranged in the annular groove. The combined sealing ring can be well supported in the first opening groove and the spring energy storage sealing ring in the second opening groove, so that high-pressure sealing can be formed, the sealing requirement of ultrahigh pressure of 90MPa and above can be met, the sealing is more stable and reliable, and the situation of reverse leakage of hydraulic oil is avoided; avoiding grooving on the surface of the piston, being beneficial to improving the strength of the piston and prolonging the service life of the piston.
Description
Technical field:
The utility model relates to the technical field of diaphragm compressors, in particular to a 90MPa diaphragm compressor cylinder hydraulic oil side plunger sealing structure.
The background technology is as follows:
at present, in a diaphragm compressor of 90MPa and above, hydraulic oil is easy to reversely leak into a compression cavity in the reciprocating motion process of a piston due to the effect of ultrahigh pressure of 90MPa and above on the hydraulic oil side of an oil cylinder. Firstly, the clearance between the piston and the oil cylinder wall is reduced, the disadvantage is that the situation of cylinder pulling is easy to occur, and the processing difficulty is increased; secondly, seal through the mode that sets up the sealing ring on hydro-cylinder piston, its shortcoming is that the sealing ring supports effectually, and the condition that appears sealed inefficacy easily when the oil pressure is too big, has satisfied the sealing requirement of the super high pressure more than 90MPa, sets up a plurality of ring channels and reduces the intensity of piston easily moreover on the piston surface, influences the life-span of piston.
In summary, the problem of reverse leakage of hydraulic oil from diaphragm compressors of 90MPa and above has become a technical problem to be solved in industry.
The utility model comprises the following steps:
The utility model provides a 90MPa diaphragm compressor cylinder hydraulic oil side plunger sealing structure for overcoming the defects of the prior art, and solves the problems that the sealing ring on the surface of the piston is poor in supporting effect, easy to cause sealing failure and can not meet the ultrahigh pressure sealing requirement of more than 90 MPa.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
The utility model provides a 90MPa diaphragm compressor hydro-cylinder hydraulic oil side plunger seal structure, includes the oil side membrane head, is equipped with the cylinder liner in the oil side membrane head, is equipped with the piston in the cylinder liner, the cylinder liner inner wall is equipped with first open slot, installs a plurality of cross-section in parallel for L supporting ring in the first open slot, and the combination sealing washer is installed respectively to every supporting ring inboard, and the inner circle surface of combination sealing washer contacts the cooperation with the piston and seals, the open end fixed mounting of first open slot has quiet seal seat, and quiet seal seat inner wall is equipped with the second open slot, and the second open slot is linked together with first open slot, installs the spring energy storage sealing washer in the second open slot, and the tip of the supporting ring of setting in the first open slot outer end is equipped with one and stretches to the ejector pad that the second open slot contacts with spring energy storage sealing washer; the outer wall of the static seal seat is provided with an annular groove, and static seal is arranged in the annular groove.
The surface of the outer ring of the supporting ring is in contact fit with the cylinder sleeve, and the surface of the inner ring of the supporting ring is in clearance fit with the piston.
The surface of the outer ring of the static seal seat is in contact fit with the oil side membrane head, and the surface of the inner ring of the static seal seat is in clearance fit with the piston.
The static seal seat is used for compressing and fixing a plurality of support rings in the first opening groove.
And an inner check ring for supporting the spring energy storage sealing ring is arranged in the second opening groove.
An outer check ring for supporting the static seal is arranged in the annular groove.
The spring energy storage sealing ring is used for forming high-pressure sealing between the piston and the static sealing seat.
The utility model adopts the scheme and has the following advantages:
The combined sealing rings are arranged on the inner wall of the cylinder sleeve, the spring energy storage sealing rings are arranged on the inner wall of the static sealing seat, the traditional mode of arranging sealing rings on the surface of a piston is replaced, on one hand, the combined sealing rings can be well supported in the first opening groove and the spring energy storage sealing rings in the second opening groove, high-pressure sealing can be formed, the sealing requirement of ultrahigh pressure of 90MPa and above can be met, the sealing is more stable and reliable, and the situation of reverse leakage of hydraulic oil is avoided; on the other hand, grooves on the surface of the piston are avoided, which is beneficial to improving the strength of the piston and prolonging the service life of the piston.
Description of the drawings:
Fig. 1 is a schematic structural view of the present utility model.
In the figure, 1, an oil side membrane head, 2, a cylinder sleeve, 3, a piston, 4, a supporting ring, 5, a combined sealing ring, 6, a static sealing seat, 7, a spring energy storage sealing ring, 8, a push block, 9, a static seal, 10, an inner check ring, 11 and an outer check ring.
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 hydraulic oil side plunger sealing structure of the 90MPa diaphragm compressor cylinder comprises an oil side membrane head 1, a cylinder sleeve 2 is arranged in the oil side membrane head 1, a piston 3 is arranged in the cylinder sleeve 2, a first open groove is formed in the inner wall of the cylinder sleeve 2, a plurality of support rings 4 with L-shaped cross sections are arranged in the first open groove side by side, a combined sealing ring 5 is respectively arranged on the inner side of each support ring 4, the inner ring surface of the combined sealing ring 5 is in contact fit with the piston 3 for sealing, a static sealing seat 6 is fixedly arranged at the opening end of the first open groove, a second open groove is formed in the inner wall of the static sealing seat 6 and is communicated with the first open groove, a spring energy storage sealing ring 7 is arranged in the second open groove, and a push block 8 which extends into the second open groove and is in contact with the spring energy storage sealing ring 7 is arranged at the end part of the support ring 4 at the outermost end of the first open groove; the outer wall of the static seal seat 6 is provided with an annular groove, and a static seal 9 is arranged in the annular groove and is used for sealing between the static seal seat 6 and the oil side membrane head 1.
The surface of the outer ring of the supporting ring 4 is in contact fit with the cylinder sleeve 2, and the surface of the inner ring of the supporting ring 4 is in clearance fit with the piston 3, so that friction with the piston 3 is avoided.
The surface of the outer ring of the static seal seat 1 is in contact fit with the oil side membrane head 1, and the surface of the inner ring of the static seal seat 1 is in clearance fit with the piston 3, so that friction with the piston 3 is avoided.
The static seal seat 1 is used for compressing and fixing a plurality of support rings 4 in the first open slot.
An inner check ring 10 for supporting the spring energy storage sealing ring 7 is arranged in the second open groove.
An outer baffle ring 11 for supporting the static seal 9 is arranged in the annular groove.
The spring energy storage sealing ring 7 is used for forming high-pressure sealing between the piston 3 and the static sealing seat 1.
Working principle:
In the reciprocating motion process of the piston 3, the inner ring surfaces of the plurality of combined sealing rings 5 arranged in the first opening groove are in contact fit with the piston 3 to seal, the combined sealing rings 5 can obtain good supporting effect in the L-shaped supporting rings 4, sealing capacity is improved, the pressure generated by hydraulic oil on the combined sealing rings 5 can be transmitted to the push block 8 in the second opening groove through the plurality of supporting rings 4, the push block 8 transmits the pressure to the spring energy storage sealing rings 7, the pressure is larger, the spring energy storage sealing rings 7 are more fully attached, high-pressure sealing is formed, the inner retainer ring 10 is matched with the support of the inner retainer ring 10, the sealing requirement of ultrahigh pressure of 90MPa or above can be met, and the sealing is more stable and reliable, and the situation of reverse leakage of hydraulic oil is avoided.
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 (7)
1. The utility model provides a 90MPa diaphragm compressor hydro-cylinder hydraulic oil side plunger seal structure, includes oily side membrane head, is equipped with the cylinder liner in the oily side membrane head, is equipped with piston in the cylinder liner, its characterized in that: the inner wall of the cylinder sleeve is provided with a first open groove, a plurality of support rings with L-shaped cross sections are arranged in the first open groove side by side, the inner side of each support ring is respectively provided with a combined sealing ring, the inner ring surface of each combined sealing ring is in contact fit with a piston for sealing, the open end of the first open groove is fixedly provided with a static sealing seat, the inner wall of the static sealing seat is provided with a second open groove, the second open groove is communicated with the first open groove, a spring energy storage sealing ring is arranged in the second open groove, and the end part of the support ring arranged at the outermost end in the first open groove is provided with a pushing block which extends into the second open groove and is in contact with the spring energy storage sealing ring; the outer wall of the static seal seat is provided with an annular groove, and static seal is arranged in the annular groove.
2. The 90MPa diaphragm compressor cylinder hydraulic oil side plunger seal structure according to claim 1, wherein: the surface of the outer ring of the supporting ring is in contact fit with the cylinder sleeve, and the surface of the inner ring of the supporting ring is in clearance fit with the piston.
3. The 90MPa diaphragm compressor cylinder hydraulic oil side plunger seal structure according to claim 1, wherein: the surface of the outer ring of the static seal seat is in contact fit with the oil side membrane head, and the surface of the inner ring of the static seal seat is in clearance fit with the piston.
4. The 90MPa diaphragm compressor cylinder hydraulic oil side plunger seal structure according to claim 1, wherein: the static seal seat is used for compressing and fixing a plurality of support rings in the first opening groove.
5. The 90MPa diaphragm compressor cylinder hydraulic oil side plunger seal structure according to claim 1, wherein: and an inner check ring for supporting the spring energy storage sealing ring is arranged in the second opening groove.
6. The 90MPa diaphragm compressor cylinder hydraulic oil side plunger seal structure according to claim 1, wherein: an outer check ring for supporting the static seal is arranged in the annular groove.
7. The 90MPa diaphragm compressor cylinder hydraulic oil side plunger seal structure according to claim 1, wherein: the spring energy storage sealing ring is used for forming high-pressure sealing between the piston and the static sealing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323073192.2U CN221097446U (en) | 2023-11-14 | 2023-11-14 | 90MPa diaphragm compressor hydro-cylinder hydraulic oil side plunger seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323073192.2U CN221097446U (en) | 2023-11-14 | 2023-11-14 | 90MPa diaphragm compressor hydro-cylinder hydraulic oil side plunger seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221097446U true CN221097446U (en) | 2024-06-07 |
Family
ID=91328510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323073192.2U Active CN221097446U (en) | 2023-11-14 | 2023-11-14 | 90MPa diaphragm compressor hydro-cylinder hydraulic oil side plunger seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221097446U (en) |
-
2023
- 2023-11-14 CN CN202323073192.2U patent/CN221097446U/en active Active
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