CN210034422U - Carbon ring type floating ring sealing device - Google Patents
Carbon ring type floating ring sealing device Download PDFInfo
- Publication number
- CN210034422U CN210034422U CN201920699165.0U CN201920699165U CN210034422U CN 210034422 U CN210034422 U CN 210034422U CN 201920699165 U CN201920699165 U CN 201920699165U CN 210034422 U CN210034422 U CN 210034422U
- Authority
- CN
- China
- Prior art keywords
- floating ring
- carbon
- mounting groove
- groove
- side wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 238000007789 sealing Methods 0.000 title claims abstract description 33
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 44
- 238000009434 installation Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 19
- 102100023877 E3 ubiquitin-protein ligase RBX1 Human genes 0.000 description 10
- 101001111722 Homo sapiens E3 ubiquitin-protein ligase RBX1 Proteins 0.000 description 10
- 244000126211 Hericium coralloides Species 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 239000002341 toxic gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 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
- 239000011261 inert gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model relates to a carbon ring type floating ring sealing device, which belongs to the technical field related to carbon ring sealing, and comprises a floating ring box, wherein the top and the bottom of the floating ring box are both provided with an inflation inlet, the inner side wall of the top of the floating ring box is provided with a second mounting groove, the inner side wall of the second mounting groove is movably provided with a first anti-rotation pin, the first anti-rotation pin is movably mounted with a first carbon floating ring, the inner side wall of the bottom of the floating ring box is provided with a third mounting groove, the inner side wall of the third mounting groove is movably mounted with a second anti-rotation pin, the second anti-rotation pin is movably mounted with a second carbon floating ring, one side of the floating ring box is provided with a groove, the inner side wall of the groove is provided with an arc groove, a connecting rod is arranged in the groove in a penetrating way, one end of the connecting rod is provided, has good development prospect.
Description
Technical Field
The utility model relates to a carbon ring formula floating ring sealing device belongs to the sealed relevant technical field of carbocycle.
Background
The centrifugal compressor is widely applied to oil refining chemical devices, the conveyed media comprise flammable and explosive gas media, and also comprise common compressors for conveying medium and low-pressure toxic gas, and shaft end sealing of the compressor is the key for safe operation of a unit;
the sealing forms which have been successfully used in the industry at present are: the comb tooth seal, the oil film seal and the dry gas seal are respectively different in characteristics, the comb tooth seal is low in processing cost and wide in industrial field application, zero leakage cannot be achieved due to the fact that the comb tooth seal is a gap seal, the oil film seal is generally applied to compressors of air or inert gas, the oil film seal is suitable for gas compression of various pressures and media, but a set of high-pressure oil system needs to be arranged for achieving sealing, the cost is high, the maintenance workload is large, the application range of the dry gas seal is similar to that of the oil film seal, the sealing can be achieved only by introducing a clean gas source, and the determined sealing price is higher due to the fact that the size of the dry gas seal structure and the cost of materials;
however, the above three seals cannot solve the problem of the shaft seal of the common compressor for conveying toxic gas media, and cannot meet the requirements of zero leakage, low cost and strong structural practicability.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model overcomes current defect, provides carbon ring formula floating ring sealing device, both need solve zero leakage among the effective solution background art, need with low costs again and the problem that the structure practicality is strong.
In order to solve the technical problem, the utility model provides a following technical scheme:
the carbon ring type floating ring sealing device comprises a floating ring box, wherein inflation ports are arranged at the top and the bottom of the floating ring box, a second mounting groove is formed in the inner side wall of the top of the floating ring box, a first anti-rotation pin is movably mounted on the inner side wall of the second mounting groove, a first carbon floating ring is movably mounted on the first anti-rotation pin, a third mounting groove is formed in the inner side wall of the bottom of the floating ring box, a second anti-rotation pin is movably mounted on the inner side wall of the third mounting groove, a second carbon floating ring is movably mounted on the second anti-rotation pin, a groove is formed in one side of the floating ring box, an arc-shaped groove is formed in the inner side wall of the groove, a connecting rod penetrates through the groove, a fourth mounting groove is formed in one end of the connecting rod, the number of the fourth mounting groove is 2, a spring is fixedly, the floating ring box with all be provided with the through-hole in the frame, wear to be equipped with the axle in the through-hole, be provided with mounting groove six and mounting groove seven on the inside wall of frame.
Further, the first carbon floating ring is a high-pressure floating ring, and the second carbon floating ring is a low-pressure floating ring.
Furthermore, one end of the spring is fixedly provided with a lug, and the size of the lug is matched with that of the arc-shaped groove.
Further, a sealing block is fixedly mounted on the inner side wall of the mounting groove six.
Furthermore, a locking spring is fixedly connected to the inner side wall of the mounting groove seven.
Furthermore, the top of the floating ring box is provided with a first installation groove, a first stop block is arranged in the first installation groove, and an installation rod is fixedly installed on the first stop block.
The utility model discloses beneficial effect:
because the first carbon floating ring and the second carbon floating ring are similar to the bearing, the device has the characteristic of automatically aligning the axis, the first carbon floating ring and the second carbon floating ring are respectively very small in the gap between the shafts, and is particularly suitable for sealing under the condition of large pressure difference, and under the normal working condition, the shafts are respectively provided with a layer of air film between the first carbon floating ring and the second carbon floating ring, so that the working condition of air friction is formed, the first carbon floating ring and the second carbon floating ring are not worn or torn with the shafts, and the device is also very safe, so that the device is suitable for sealing the shaft ends of high-speed rotating machinery, and the device is completely suitable for sealing the shaft ends of compressed toxic, inflammable and explosive gases, particularly suitable for sealing the shaft ends of middle-low-pressure and high-.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic cross-sectional view of the present invention.
Fig. 2 is a schematic sectional view of the floating ring box of the present invention.
Fig. 3 is a schematic view of the first carbon floating ring and the floating ring box according to the present invention.
Fig. 4 is a schematic sectional view of the connecting rod of the present invention.
Reference numbers in the figures: 1. a floating ring box; 2. an inflation inlet; 3. a first anti-rotation pin; 4. a first carbon floating ring; 5. a second anti-rotation pin; 6. a second carbon floating ring; 7. a connecting rod; 8. a spring; 9. a frame; 10. a shaft; 11. a bump; 12. a sealing block; 13. a locking spring; 14. a stopper; 15. and (5) installing a rod.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
As shown in fig. 1-4, the carbon ring type floating ring sealing device comprises a floating ring box 1, wherein inflation ports 2 are respectively arranged at the top and the bottom of the floating ring box 1, a second installation groove is arranged on the inner side wall of the top of the floating ring box 1, a first anti-rotation pin 3 is movably installed on the inner side wall of the second installation groove, a first carbon floating ring 4 is movably installed on the first anti-rotation pin 3, a third installation groove is arranged on the inner side wall of the bottom of the floating ring box 1, a second anti-rotation pin 5 is movably installed on the inner side wall of the third installation groove, a second carbon floating ring 6 is movably installed on the second anti-rotation pin 5, a groove is arranged at one side of the floating ring box 1, an arc-shaped groove is arranged on the inner side wall of the groove, a connecting rod 7 penetrates through the groove, one end of the connecting rod 7 is provided with a fourth installation groove, all be provided with the through-hole in ring box 1 and the frame 9 floats, wear to be equipped with axle 10 in the through-hole, is provided with mounting groove six and mounting groove seven on the inside wall of frame 9.
The utility model discloses the theory of operation: when the carbon ring type floating ring sealing device is used, whether each part of the carbon ring type floating ring sealing device is perfect is firstly checked, the carbon ring type floating ring sealing device is a non-contact type sealing device, in order to prevent gas from leaking out of the device, sealing gas which is slightly higher than the pressure of the sealing gas is injected between a carbon floating ring I4 and a carbon floating ring II 6, the pressure of the sealing gas is generally controlled to be about 0.05MPa higher than the pressure of the sealed gas, the sealing gas flows out to two ends along the axial direction through a gap between the carbon floating ring I4 and the carbon floating ring II 6 and a shaft 10, when a rotor in the carbon ring type floating ring sealing device runs at high speed, the sealing gas flowing into the carbon ring type floating ring sealing device forms a stable gas film between the utility model and the shaft 10, the gas film is full of the gap in the whole through hole, so that the leakage of a gas medium can be prevented, the carbon floating ring I4 and the carbon floating ring II 6 are carbon rings, the carbocycle is a device which is formed at the next time under the high temperature condition, and can be matched with the shaft 10 to ensure that the carbocycle and the shaft 10 keep a smaller gap, the structural design of the carbon floating ring I4 and the carbon floating ring II 6 in the utility model are both in a three-petal structure, the joint is provided with the anti-rotating pin I3 and the anti-rotating pin II 5, the carbon floating ring I4 and the carbon floating ring II 6 can only float and can not rotate along with the shaft respectively, the structures of the carbon floating ring I4 and the carbon floating ring II 6 both adopt radial notches, the surfaces of the carbon floating ring I4 and the carbon floating ring II 6 are processed by fine grinding, the carbocycle and the shaft 10 of the floating ring box 1 can be tightly pressed towards the end surface under the action of the isolating gas to prevent high-pressure gas from leaking from the side surface and influencing the sealing effect, the frame 9 is connected with the floating ring box 1 through the connecting rod 7, when in use, a user can firstly extrude the lug 11 into the connecting rod 7 and then wear to arrange, until the lug 11 is popped out from the connecting rod 7 through the spring 8, the lug coincides with the arc-shaped groove, and therefore the floating ring box 1 and the frame 9 can be fixed, the operation is simple, and the disassembly is convenient.
The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.
Claims (6)
1. Carbon ring formula floating ring sealing device, including floating ring box (1), its characterized in that: the air inflation inlet (2) is formed in the top and the bottom of the floating ring box (1), a second mounting groove is formed in the inner side wall of the top of the floating ring box (1), a first anti-rotation pin (3) is movably mounted on the inner side wall of the second mounting groove, a first carbon floating ring (4) is movably mounted on the first anti-rotation pin (3), a third mounting groove is formed in the inner side wall of the bottom of the floating ring box (1), a second anti-rotation pin (5) is movably mounted on the inner side wall of the third mounting groove, a second carbon floating ring (6) is movably mounted on the second anti-rotation pin (5), a groove is formed in one side of the floating ring box (1), an arc-shaped groove is formed in the inner side wall of the groove, a connecting rod (7) penetrates through the groove, a fourth mounting groove is formed in one end of the connecting rod (7), the number of the fourth mounting groove is 2, the other end fixed mounting of connecting rod (7) has frame (9), the floating ring box (1) with all be provided with the through-hole in frame (9), wear to be equipped with axle (10) in the through-hole, be provided with mounting groove six and mounting groove seven on the inside wall of frame (9).
2. The carbon ring-type floating ring seal assembly of claim 1, wherein: the first carbon floating ring (4) is a high-pressure floating ring, and the second carbon floating ring (6) is a low-pressure floating ring.
3. The carbon ring-type floating ring seal assembly of claim 1, wherein: one end of the spring (8) is fixedly provided with a convex block (11), and the size of the convex block (11) is matched with that of the arc-shaped groove.
4. The carbon ring-type floating ring seal assembly of claim 1, wherein: and a sealing block (12) is fixedly arranged on the inner side wall of the mounting groove six.
5. The carbon ring-type floating ring seal assembly of claim 1, wherein: and a locking spring (13) is fixedly connected to the inner side wall of the mounting groove seven.
6. The carbon ring-type floating ring seal assembly of claim 1, wherein: the top of the floating ring box (1) is provided with a first installation groove, a first stop block (14) is arranged in the first installation groove, and an installation rod (15) is fixedly installed on the first stop block (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920699165.0U CN210034422U (en) | 2019-05-16 | 2019-05-16 | Carbon ring type floating ring sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920699165.0U CN210034422U (en) | 2019-05-16 | 2019-05-16 | Carbon ring type floating ring sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210034422U true CN210034422U (en) | 2020-02-07 |
Family
ID=69365732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920699165.0U Expired - Fee Related CN210034422U (en) | 2019-05-16 | 2019-05-16 | Carbon ring type floating ring sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210034422U (en) |
-
2019
- 2019-05-16 CN CN201920699165.0U patent/CN210034422U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 |