CN204267357U - Single shaft compressor main shaft sealing component - Google Patents
Single shaft compressor main shaft sealing component Download PDFInfo
- Publication number
- CN204267357U CN204267357U CN201420636976.3U CN201420636976U CN204267357U CN 204267357 U CN204267357 U CN 204267357U CN 201420636976 U CN201420636976 U CN 201420636976U CN 204267357 U CN204267357 U CN 204267357U
- Authority
- CN
- China
- Prior art keywords
- sealing
- main shaft
- sealing gasket
- tooth
- gasket
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 99
- 239000003566 sealing material Substances 0.000 claims abstract description 8
- 210000000332 tooth crown Anatomy 0.000 claims abstract description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract description 8
- 229910021529 ammonia Inorganic materials 0.000 abstract description 4
- 230000007812 deficiency Effects 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of single shaft compressor main shaft sealing component, comprise main shaft, the Sealing with sealing position, described main shaft is provided with sealing tooth at sealing position, forms the teeth groove for ventilating between adjacent seals tooth; Sealing comprises sealing gasket and sealing gasket installing ring, and sealing gasket has soft sealing material, automatically cuts out the seal groove of envelope crown for sealing tooth crown when stretching into sealing gasket.The utility model compared with prior art, preset clearance size is not needed during design, during spindle operation, crown can stretch in the seal groove in sealing gasket, compensate for design deficiency of the prior art, effectively reduce quantity of gas leakage, be applicable to the gas conveying of special media, be especially applicable to the conveying of ammonia.
Description
Technical field
The utility model relates to a kind of single shaft compressor, especially single shaft compressor main shaft sealing component.
Background technique
Single shaft compressor is generally made up of rotor, stator, rotor is formed by several impeller that a main shaft is connected, single shaft compressor inner between impeller and impeller owing to there is pressure reduction, in order to reduce leakage rate in design, generally all sealing position is set on main shaft, this position main shaft is plain shaft structure, and Sealing then adopts labyrinth seal part to reduce leakage rate.Concrete structure is as shown in Fig. 3, and air-flow is by labyrinth seal, and expansion decompression, can be converted into heat energy by gas pressure and reach step-down minimizing leakage rate object.The Sealing of this structure must reserve enough gap sizes when designing, and seals after tooth is inlayed and needs lathe to process by sealing teeth size, produce larger vibration after sealing tooth contacts main shaft after installing to prevent Sealing during manufacture.Therefore objectively cause amount of leakage larger, it is unaccommodated for especially carrying ammonia the gas conveying of some special medias.
Model utility content
The purpose of this utility model is to provide one effectively to reduce quantity of gas leakage, is applicable to the single shaft compressor main shaft sealing component of special media gas conveying.
This single shaft compressor main shaft sealing component that the utility model provides, comprise main shaft, the Sealing with sealing position, described main shaft is provided with sealing tooth at sealing position, forms the teeth groove for ventilating between adjacent seals tooth; Sealing comprises sealing gasket and sealing gasket installing ring, and sealing gasket has soft sealing material, automatically cuts out the seal groove of envelope crown for sealing tooth crown when stretching into sealing gasket.
In order to improve sealing effect further, axially there are several for the teeth groove of ventilating along main shaft.
For convenience of processing, described sealing tooth is made tooth cover and is fixed on main shaft.
In order to firmly install sealing gasket, described sealing gasket installing ring has dovetail groove, for installing sealing gasket.Interference fit is adopted to install between sealing gasket installing ring and sealing gasket.Bolt to position is adopted, for preventing sealing gasket with main axis between sealing gasket installing ring and sealing gasket.
The utility model is owing to being provided with the teeth groove for ventilating at the sealing position of main shaft, Sealing has soft sealing material simultaneously, static lower seal makes teeth groove seal, dynamically when unit first time drives running, the sealing tooth on main shaft cuts out the seal groove of envelope crown by being certainly about to soft sealing material due to the flexible movement of axle.Make the gap formed between sealing gasket and sealing tooth can reach minimum, thus reach the minimum object of leakage rate, decrease the inter-stage internal losses of compressor.The utility model compared with prior art, preset clearance size is not needed during design, during spindle operation, crown can stretch in the seal groove in sealing gasket, compensate for design deficiency of the prior art, effectively reduce quantity of gas leakage, be applicable to the gas conveying of special media, be especially applicable to the conveying of ammonia.
Accompanying drawing explanation
Fig. 1 is the structural representation under the utility model static state.
Fig. 2 be the utility model dynamically under structural representation.
Fig. 3 is the structural representation of prior art.
Wherein main shaft 1, Sealing 2, Sealing fitting seat 3, the teeth groove 4 for ventilating, interior axle 11, sealing tooth 12, sealing gasket 21, sealing gasket installing ring 22, bolt 23, seal groove 5
Embodiment
Mode of execution one
As can be seen from Figure 1, the utility model has main shaft 1, Sealing 2, Sealing fitting seat 3, and main shaft 1 has interior axle 11, sealing tooth 12 is provided with at the sealing position of main shaft, sealing tooth 12 is made tooth cover and is fastened on outside interior axle 11, and sealing tooth 12 has several, forms the teeth groove 4 for ventilating between each tooth.Sealing 2 is arranged on Sealing fitting seat 3, and Sealing 2 forms primarily of sealing gasket 21, sealing gasket installing ring 22, bolt 23.Adopt dovetail groove to be connected between sealing gasket installing ring 22 with sealing gasket 21 and adopt interference fit, leaving certain pyrocondensation amount, adopt Bolt to position simultaneously, rotate with main shaft when preventing sealing gasket from contacting with main shaft.Sealing gasket 21 capping teeth groove 4 time static, time dynamic when unit first time drives running, sealing tooth on main shaft cuts out the seal groove 5 of envelope crown by being certainly about to soft sealing material due to the flexible movement of axle, make the gap formed between sealing gasket and sealing tooth can reach minimum, when ensure that main shaft runs in normal state, leakage rate is minimum, decreases the inter-stage internal losses of compressor.The utility model is specially adapted to the conveying of special media, and especially the conveying of ammonia, is shown in Fig. 2 ~ Fig. 3.Sealing gasket 21 fits tightly vent slot 4 more, makes the basic No leakage of gas.
Mode of execution two
Sealing tooth can direct but this processing mode than mode of execution one difficulty more greatly.The material of sealing gasket adopts soft sealing material at least partly, should adopt soft sealing material especially near teeth groove 4.
Claims (6)
1. a single shaft compressor main shaft sealing component, comprises main shaft (1), the Sealing (2) with sealing position, it is characterized in that described main shaft is provided with sealing tooth (11) at sealing position, forming the teeth groove (4) for ventilating between adjacent seals tooth; Sealing (2) comprises sealing gasket (21) and sealing gasket installing ring (22), and sealing gasket has soft sealing material, automatically cuts out the seal groove (5) of envelope crown for sealing tooth crown when stretching into sealing gasket.
2. single shaft compressor main shaft sealing component according to claim 1, is characterized in that the teeth groove for ventilating axially has several along main shaft.
3. single shaft compressor main shaft sealing component according to claim 1, is characterized in that described sealing tooth is made tooth cover and is fixed on main shaft.
4. single shaft compressor main shaft sealing component according to claim 1 and 2, is characterized in that sealing gasket installing ring has dovetail groove, for installing sealing gasket.
5. single shaft compressor main shaft sealing component according to claim 3, adopts interference fit to install between sealing gasket installing ring and sealing gasket.
6. single shaft compressor main shaft sealing component according to claim 4, is characterized in that adopting bolt (23) to locate between sealing gasket installing ring and sealing gasket, for preventing sealing gasket with main axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636976.3U CN204267357U (en) | 2014-10-30 | 2014-10-30 | Single shaft compressor main shaft sealing component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636976.3U CN204267357U (en) | 2014-10-30 | 2014-10-30 | Single shaft compressor main shaft sealing component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267357U true CN204267357U (en) | 2015-04-15 |
Family
ID=52802228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420636976.3U Expired - Fee Related CN204267357U (en) | 2014-10-30 | 2014-10-30 | Single shaft compressor main shaft sealing component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542702A (en) * | 2017-10-10 | 2018-01-05 | 美佳德科技（无锡）有限公司 | Centrifugal air pump with edge seal structure |
-
2014
- 2014-10-30 CN CN201420636976.3U patent/CN204267357U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542702A (en) * | 2017-10-10 | 2018-01-05 | 美佳德科技（无锡）有限公司 | Centrifugal air pump with edge seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |