CN206158797U - Machinery atmospheric pressure composite seal structure - Google Patents
Machinery atmospheric pressure composite seal structure Download PDFInfo
- Publication number
- CN206158797U CN206158797U CN201621211050.5U CN201621211050U CN206158797U CN 206158797 U CN206158797 U CN 206158797U CN 201621211050 U CN201621211050 U CN 201621211050U CN 206158797 U CN206158797 U CN 206158797U
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- pipeline
- flange
- sealed
- machinery
- 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.)
- Active
Links
Abstract
The utility model provides a machinery atmospheric pressure composite seal structure, relates to transmission technical field, and it is including the flange of ventilating, sealing pipeline, sealed lid and transmission shaft, and transmission shaft off -axial wall is equipped with sealed lid, is equipped with broach labyrinth seals district between transmission shaft and the sealed lid, and sealing pipeline's one end is connected to sealed caping end, and the sealing pipeline other end communicates through the pipeline and the flange of ventilating. This machinery atmospheric pressure composite seal structure, certain initial pressure gas exports broach labyrinth seals department between transmission shaft and sealed lid to via the flange of ventilating, sealing pipeline, and the sealed external pressure of improvement broach reduces and lets out leakage quantity, improves sealed effect.
Description
Technical field：
The utility model is related to sealing structure technical field, and in particular to a kind of ARTMechanical gas pressure combined sealing structure.
Background technology：
Modern Engine technology has reached high level, further to improve impeller engine efficiency, is heavily dependent on
The effect of obturaging of impeller machine rotor and transmission between centers, gas circuit is sealed and will directly affect carrying for engine booster ratio and turbine efficiency
It is high.Labyrinth labyrinth seal is a kind of common contactless air-tight structure.Labyrinth labyrinth seal is the multi-level throttle by tooth
Effect, internal vapour（Gas）Body produces axial pressure drop, and then reduces vapour（Gas）Body External leakage vertically.By reasonable in design
Seal clearance and comb number so that internal vapour（Gas）Pressure value after body warp knuckle stream is less than external pressure, reaches certain close
Envelope effect.But sound friction problem is worried during due to installing, actual radial clearance is often near the high limit of design, inside and outside vapour
（Gas）Body axial direction pressure drop falls flat, and causes leakage rate to increase, and its sealing effectiveness is poor.Therefore, improvement labyrinth is needed badly
Comb tooth sealing structure, improves effect of obturaging.
Utility model content：
The purpose of this utility model is to provide a kind of ARTMechanical gas pressure combined sealing structure, can improve labyrinth labyrinth seal effect
Really.
The technical solution adopted in the utility model is：A kind of ARTMechanical gas pressure combined sealing structure, including ventilation flange, sealing
Pipeline, closure and power transmission shaft, transmission shafts outer wall is provided with closure, and Comb Labyrinth Seals are provided between power transmission shaft and closure
Area, one end of closure top connection sealing pipeline, the sealing pipeline other end is connected by pipeline with ventilation flange.
The beneficial effects of the utility model are：This ARTMechanical gas pressure combined sealing structure, certain initial pressure gas via
Ventilation flange, sealing pipeline are exported to Comb Labyrinth Seals area between power transmission shaft and closure, improve the outside pressure in labyrinth seal area
Power, reduces leakage rate, improves sealing effectiveness.
Description of the drawings：
Fig. 1 is the utility model structural representation；
Fig. 2 is the utility model Local map.
Specific embodiment：
With reference to each figure, a kind of ARTMechanical gas pressure combined sealing structure, including ventilation flange 4, sealing pipeline 3, closure 2 and biography
Moving axis 1, the axle outer wall of power transmission shaft 1 is provided with closure 2, and Comb Labyrinth Seals area, closure 2 are provided between power transmission shaft 1 and closure 2
One end of top connection sealing pipeline 3, sealing pipeline 3 other end is connected by pipeline with ventilation flange 4.
This ARTMechanical gas pressure combined sealing structure, including power transmission shaft 1（Rotating ring）, closure 2（Stationary ring）, sealing pipeline 3 and logical
Gas flange 4.Turbomachine with certain pressure inside vapour（Gas）Body, on the one hand by the fan between power transmission shaft 1 and closure 2
The multi-level throttle effect in palace labyrinth seal area, internal vapour（Gas）Body generates axial pressure drop, reduces vapour（Gas）Body is leaked, the opposing party
The gas of certain pressure is input into the face of flange 4 of ventilating, is exported to Comb Labyrinth Seals area by sealing pipeline 3, improve comb fan
The external pressure of palace seal area, further reduces internal reduction vapour（Gas）Body leakage rate, improves comb and obturages effect.
The principle of this ARTMechanical gas pressure combined sealing structure is to labyrinth comb tooth sealing structure vapour（Gas）Body output par, c is provided
Normal pressure, improves sealing structure external pressure, further reduces vapour（Gas）Body is in axial direction to External leakage.
In sum, this ARTMechanical gas pressure combined sealing structure, certain initial pressure gas is via ventilation flange 4 and sealing
Pipeline 3 is exported to Comb Labyrinth Seals area between power transmission shaft 1 and closure 2, improves the external pressure in labyrinth seal area, reduces leakage
Amount, improves sealing effectiveness.
Claims (1)
1. a kind of ARTMechanical gas pressure combined sealing structure, including ventilation flange（4）, sealing pipeline（3）, closure（2）And power transmission shaft
（1）, it is characterised in that：Power transmission shaft（1）Axle outer wall is provided with closure（2）, power transmission shaft（1）And closure（2）Between be provided with comb
Labyrinth seal area, closure（2）Top connection sealing pipeline（3）One end, seal pipeline（3）The other end is by pipeline and ventilation
Flange（4）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621211050.5U CN206158797U (en) | 2016-11-10 | 2016-11-10 | Machinery atmospheric pressure composite seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621211050.5U CN206158797U (en) | 2016-11-10 | 2016-11-10 | Machinery atmospheric pressure composite seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206158797U true CN206158797U (en) | 2017-05-10 |
Family
ID=58658508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621211050.5U Active CN206158797U (en) | 2016-11-10 | 2016-11-10 | Machinery atmospheric pressure composite seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206158797U (en) |
-
2016
- 2016-11-10 CN CN201621211050.5U patent/CN206158797U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201627605U (en) | Sealing and heat insulation structure at vortex end of turbocharger | |
| CN203939991U (en) | Dark link chute dynamic pressure type end surface mechanical sealing structure | |
| CN206158797U (en) | Machinery atmospheric pressure composite seal structure | |
| CN201963591U (en) | Shaft seal device of air compressor | |
| CN106321157A (en) | Mechanical air pressure combined sealing structure | |
| CN207864199U (en) | Chemical industry high leakproofness wind turbine | |
| CN211598761U (en) | Carbon ring steam sealing device for turbine | |
| CN207420953U (en) | A kind of impeller back seal structure | |
| CN110056513B (en) | Sealing structure of steam centrifugal compressor | |
| CN107725179A (en) | A kind of turbocharger that can significantly lift energy-conserving and environment-protective performance | |
| CN209671068U (en) | A kind of whirlpool end oil baffle structure for turbocharger | |
| CN204175340U (en) | Centrifugal decompressor sealing system | |
| CN105971718A (en) | Oil leakage preventing device used for turbosupercharger | |
| CN204152807U (en) | Natural gas transport centrifugal compressor | |
| CN207728398U (en) | Reverse pressurization sealing gland | |
| CN203420927U (en) | Blower labyrinth seal structure | |
| CN207687043U (en) | A kind of centrifugal blower sealing device | |
| CN207513915U (en) | Self-rotary damps packing | |
| CN203308940U (en) | Special pressurizing device for bearing air sealing cover | |
| CN207315670U (en) | A kind of vertical single stage clear water peripheral pump | |
| CN2859108Y (en) | Separate spiral labyrinth sealing device | |
| CN206206288U (en) | A kind of reverse-flow type balancing disc structure | |
| CN206234156U (en) | A kind of axial labyrinth seal structure of gear centrifugal turbo-compressor | |
| CN204553320U (en) | A kind of modified model gland seal system | |
| CN204663958U (en) | Multi-level pump impeller mouth ring sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |