CN203548310U - Carbon ring sealing structure of compressor - Google Patents
Carbon ring sealing structure of compressor Download PDFInfo
- Publication number
- CN203548310U CN203548310U CN201320619643.5U CN201320619643U CN203548310U CN 203548310 U CN203548310 U CN 203548310U CN 201320619643 U CN201320619643 U CN 201320619643U CN 203548310 U CN203548310 U CN 203548310U
- Authority
- CN
- China
- Prior art keywords
- carbocyclic ring
- carbon ring
- seat
- ring seat
- ring
- 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 - Lifetime
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000007789 sealing Methods 0.000 title claims abstract description 25
- 125000002837 carbocyclic group Chemical group 0.000 claims description 101
- 125000004122 cyclic group Chemical group 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 125000002015 acyclic group Chemical group 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 238000005192 partition Methods 0.000 abstract 4
- 230000000694 effects Effects 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a carbon ring sealing structure of a compressor. The structure is characterized by comprising carbon ring components, a carbon ring seat b, a partition board, a carbon ring seat d and an oil retainer; a plurality of carbon ring components are serially connected together, and are arranged in a circular groove which is formed between a compressor spindle and a shaft sleeve together with the carbon ring seat b, the partition board, the carbon ring seat d and the oil retainer in sequence from left to right; at least one group of carbon ring seal which comprises a carbon ring seat c and a carbon ring b is at least arranged between the carbon ring seat b and the partition board, between the partition board and the carbon ring seat d, and between the carbon ring seat d and the oil retainer; a gap is formed between the carbon ring b and the carbon ring components and the spindle. Due to the adoption of the carbon ring sealing structure, even a compressor with the rotating speed higher than 20000rpm can run safely and stably; the carbon ring sealing structure has the advantages of low power consumption, long service life, advanced performance, stable process and the like.
Description
Technical field
The utility model relates to Compressor Technology field, is specifically related to the carbon ring sealing structure for hermetic compressor main shaft.
Background technique
For sealing medium, be not the sealing technique of the ultra high speed large-diameter centrifugal compressor of clean, dry gas, the machining accuracy to main shaft and the requirement of sealability are all higher.At present, under the condition of 19000rpm, domestic carbon ring seal cannot be used under the high rotating speed operating mode of large-diameter; No matter external sealing technique is the forward and reverse running of unit, all energy safe and stable operation.For this reason, for a long time, the sealing technique of ultra high speed large-diameter centrifugal compressor is abroad monopolized substantially, very large to the development restriction of domestic sealing industry.
Model utility content
For above shortcomings in prior art, the compressor carbon ring sealing structure that the utility model provides has solved sealing medium when clean, the problem that domestic ultra high speed large-diameter centrifugal compressor can not turn round.
In order to reach foregoing invention object, the technical solution adopted in the utility model is: a kind of compressor carbon ring sealing structure is provided, and it comprises carbocyclic ring assembly, carbocyclic ring seat b, dividing plate, carbocyclic ring seat d and flinger ring; Some carbocyclic ring component string are linked togather afterwards and carbocyclic ring seat b, dividing plate, carbocyclic ring seat d and flinger ring are successively set in the annular groove of compressor main shaft and shaft room formation from left to right; Between described carbocyclic ring seat b and dividing plate, between dividing plate and carbocyclic ring seat d and be at least provided with one group of carbon ring seal mainly being formed by carbocyclic ring seat c and carbocyclic ring b between carbocyclic ring seat d and flinger ring; Between described carbocyclic ring b and carbocyclic ring assembly and main shaft, be provided with a gap.
Further, described carbocyclic ring assembly comprises elastic element, carbocyclic ring seat a and carbocyclic ring a, and described carbocyclic ring a is pressed in carbocyclic ring seat a by elastic element.
Further, between described elastic element and carbocyclic ring seat a and between carbocyclic ring seat c and carbocyclic ring b, be provided with stop pin.
The beneficial effects of the utility model are: between carbocyclic ring assembly and main shaft, be provided with a micro-gap, medium is by after plural serial stage carbocyclic ring assembly together, due to reducing pressure by regulating flow effect, pressure medium will reduce step by step, and the gap of carbocyclic ring b and shaft room can affect pressure reduction of speed and leakage rate.Arrange after this carbon ring sealing structure, the compressor that rotating speed is greater than 20000rpm all can safe and stable operation, and this carbon ring sealing structure has low in energy consumption, long service life, and the advantage such as advanced in performance, process stabilizing.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of compressor carbon ring sealing structure.
Wherein, 1, carbocyclic ring assembly; 11, elastic element; 12, carbocyclic ring seat a; 13, carbocyclic ring a; 2, carbocyclic ring seat b; 3, carbocyclic ring seat c; 4, carbocyclic ring b; 5, dividing plate; 6, carbocyclic ring seat d; 7, flinger ring; 8, auxiliary seal ring; 9, compensating ring; 10, stop pin.
Embodiment
As shown in Figure 1, this compressor carbon ring sealing structure comprises carbocyclic ring assembly 1, carbocyclic ring seat b2, dividing plate 5, carbocyclic ring seat d6 and flinger ring 7; After being cascaded, some carbocyclic ring assemblies 1 are successively set on from left to right in the annular groove of compressor main shaft and shaft room formation with carbocyclic ring seat b2, dividing plate 5, carbocyclic ring seat d6 and flinger ring 7; Between described carbocyclic ring seat b2 and dividing plate 5, between dividing plate 5 and carbocyclic ring seat d6 and be at least provided with one group of carbon ring seal mainly being formed by carbocyclic ring seat c3 and carbocyclic ring b4 between carbocyclic ring seat d6 and flinger ring 7; Between described carbocyclic ring b4 and carbocyclic ring assembly 1 and main shaft, be provided with a gap.
Carbocyclic ring assembly 1 comprises elastic element 11, carbocyclic ring seat a12 and carbocyclic ring a13, and carbocyclic ring assembly 1 is the fundamental composition unit of side medium carbon ring seal, organizes the common formation side medium of carbocyclic ring assembly 1 carbon ring seal more.Elastic element 11 by carbocyclic ring a13 pre-pressing on carbocyclic ring seat a12, under the effect of pressure medium, both fit tightly, form sealing surface, prevent from forming gap between carbocyclic ring a13 and carbocyclic ring seat a12, make medium can only pass through one, the gap leakage way between carbocyclic ring seat a12 and main shaft.The micro-gap existing between carbocyclic ring seat a12 and main shaft has reducing pressure by regulating flow effect, and due to reducing pressure by regulating flow effect, a small amount of medium is by gap, and pressure medium reduces.Carbocyclic ring assembly 1 is connected manyly, and pressure decreased is more obvious, and leakage rate is less.
Medium is by after side medium carbon ring seal, and micro-dielectric leakage is to carbocyclic ring seat b2 place, and from here discharged to subsequent treatment operation.Carbocyclic ring seat b2 right side is by the multistage carbon ring seal being comprised of carbocyclic ring seat c3, carbocyclic ring b4 and compensating ring 9, and the pressure medium that carbocyclic ring b4 place pressure ratio leaks into carbocyclic ring seat b2 place is slightly high, and cushion gas is leaked to carbocyclic ring seat b2 side, stops medium to large gas leakage.
Carbocyclic ring b4 adopts splitted structure, and it exists very little gap respectively and between carbocyclic ring seat b2, carbocyclic ring seat c3, carbocyclic ring seat d6 and dividing plate 5, and under compensating ring 9 contractions, carbocyclic ring b4 can shrink, compensation carbocyclic ring b4 wearing and tearing; Flinger ring 7 can prevent bearing oil or other this compressor of liquid contamination carbon ring sealing structure.
Between elastic element 11 and carbocyclic ring seat a12 and between carbocyclic ring seat c3 and carbocyclic ring b4, by stop pin 10, carry out anti-rotation.Between carbocyclic ring seat a12, carbocyclic ring seat b2, carbocyclic ring seat c3, carbocyclic ring seat d6 and axle sleeve, be connected by screw, laminating is pressed against each other during installation; Between described elastic element 11 and carbocyclic ring seat a12 and axle sleeve, by being set, auxiliary seal ring 8 realizes interference fit anti-rotation.
Although by reference to the accompanying drawings embodiment of the present utility model is described in detail, should not be construed as the restriction of the protection domain to this patent.In the described scope of claims, the various modifications that those skilled in the art can make without creative work and distortion still belong to the protection domain of this patent.
Claims (5)
1. a compressor carbon ring sealing structure, is characterized in that: comprise carbocyclic ring assembly, carbocyclic ring seat b, dividing plate, carbocyclic ring seat d and flinger ring; Some carbocyclic ring component string are linked togather afterwards and carbocyclic ring seat b, dividing plate, carbocyclic ring seat d and flinger ring are successively set in the annular groove of compressor main shaft and shaft room formation from left to right; Between described carbocyclic ring seat b and dividing plate, between dividing plate and carbocyclic ring seat d and be at least provided with one group of carbon ring seal mainly being formed by carbocyclic ring seat c and carbocyclic ring b between carbocyclic ring seat d and flinger ring; Between described carbocyclic ring b and carbocyclic ring assembly and main shaft, be provided with a gap.
2. compressor carbon ring sealing structure according to claim 1, is characterized in that: described carbocyclic ring assembly comprises elastic element, carbocyclic ring seat a and carbocyclic ring a, and described carbocyclic ring a is pressed in carbocyclic ring seat a by elastic element.
3. compressor carbon ring sealing structure according to claim 2, is characterized in that: between described elastic element and carbocyclic ring seat a and between carbocyclic ring seat c and carbocyclic ring b, be provided with stop pin.
4. according to the compressor carbon ring sealing structure described in close claim 2, it is characterized in that: between described elastic element and carbocyclic ring seat c and axle sleeve, be provided with auxiliary seal ring.
5. compressor carbon ring sealing structure according to claim 1, is characterized in that: between described carbocyclic ring seat c and carbocyclic ring b, be provided with compensating ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320619643.5U CN203548310U (en) | 2013-10-09 | 2013-10-09 | Carbon ring sealing structure of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320619643.5U CN203548310U (en) | 2013-10-09 | 2013-10-09 | Carbon ring sealing structure of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548310U true CN203548310U (en) | 2014-04-16 |
Family
ID=50466434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320619643.5U Expired - Lifetime CN203548310U (en) | 2013-10-09 | 2013-10-09 | Carbon ring sealing structure of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548310U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482215A (en) * | 2014-11-12 | 2015-04-01 | 崔正军 | Shaft-end multiple seal of centrifugal compressor |
| CN114321373A (en) * | 2021-12-31 | 2022-04-12 | 宁波伏尔肯科技股份有限公司 | Split type sealing device |
-
2013
- 2013-10-09 CN CN201320619643.5U patent/CN203548310U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482215A (en) * | 2014-11-12 | 2015-04-01 | 崔正军 | Shaft-end multiple seal of centrifugal compressor |
| CN114321373A (en) * | 2021-12-31 | 2022-04-12 | 宁波伏尔肯科技股份有限公司 | Split type sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610100, No. 26, Xingguang West Road, Chengdu economic and Technological Development Zone, Longquanyi District, Sichuan, Chengdu Patentee after: CHENGDU YITONG SEAL Co.,Ltd. Address before: 610100, No. 26, Xingguang West Road, Chengdu economic and Technological Development Zone, Longquanyi District, Sichuan, Chengdu Patentee before: CHENGDU YITONG SEAL Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |