CN204553320U - A kind of modified model gland seal system - Google Patents
A kind of modified model gland seal system Download PDFInfo
- Publication number
- CN204553320U CN204553320U CN201520051107.9U CN201520051107U CN204553320U CN 204553320 U CN204553320 U CN 204553320U CN 201520051107 U CN201520051107 U CN 201520051107U CN 204553320 U CN204553320 U CN 204553320U
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- CN
- China
- Prior art keywords
- sealing
- shaft seal
- seal housing
- copper sheathing
- gear piece
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Abstract
The utility model discloses a kind of modified model gland seal system, comprises shaft seal housing, sealing gear piece and copper sheathing sealing; This shaft seal housing is fixed on axial flow compressor housing, and sealing gear piece is fixed on rotor, and this copper sheathing closed set is on shaft seal housing and be positioned at the periphery of sealing gear piece, and this shaft seal housing is provided with in time the vent hole dredged of high-temperature gas leaked.Coordinate and utilize sealing gear piece and copper sheathing sealing, make to form excellent sealing between rotor and shaft seal housing, and by offering vent hole, utilize vent hole in time the high-temperature gas leaked to be dredged, the utility model structure is simple, uses and processes more convenient, easy to maintenance, and cost is lower, is comparatively easy to apply, there is larger use value; Further, on shaft seal housing, copper sheathing ratio is easier to repair, clearance requirement when can ensure very well to assemble between copper sheathing and sealing gear piece, is exactly that assembling is simple on the whole, easily ensures the clearance requirement of design.
Description
Technical field
The utility model relates to rotating machinery shaft seal art, refers in particular to a kind of modified model gland seal system.
Background technique
Existing axial flow compressor shaft seal is labyrinth seal structure, and its structure is made up of the shaft seal be fixed on casing and epitrochanterian gear piece.The passage that pressed gas forms through many throttle clearance and expansion cavity, produce very large energy loss through repeatedly throttling, fluid head greatly declines, and makes fluid be difficult to leak, to reach the object of sealing.There is certain leakage rate in this kind of shaft seal structure.Axial flow compressor exhaust shaft seal place gas pressure is comparatively large, temperature is higher, the inconvenient staff of leakage of a large amount of high-temperature gas near operation, affect power house environment.This kind of shaft seal is inconvenient to keep in repair.
Model utility content
In view of this, the utility model is for the disappearance of prior art existence, and its main purpose is to provide a kind of modified model gland seal system, and its good seal, leakage rate be little, it is easy to keep in repair, it is easy to use to process.
For achieving the above object, the utility model adopts following technological scheme:
A kind of modified model gland seal system, comprises shaft seal housing, sealing gear piece and copper sheathing sealing; This shaft seal housing is fixed on axial flow compressor housing, and sealing gear piece is fixed on rotor, and this copper sheathing closed set is on shaft seal housing and be positioned at the periphery of sealing gear piece, and this shaft seal housing is provided with in time the vent hole dredged of high-temperature gas leaked.
Preferably, described shaft seal housing includes shaft head section and the axle rear of one-body molded connection, and the diameter of shaft head section is less than the diameter of axle rear, and vent hole is arranged in shaft head section.
Preferably, described vent hole is spaced three rows.
Preferably, the sealing of aforementioned copper sheathing is all inlaid with in described shaft head section and axle rear.
Preferably, described axial flow compressor housing has bullport and adds outlet pipe, outlet pipe is communicated with between bullport and vent hole.
The utility model compared with prior art has obvious advantage and beneficial effect, specifically, as shown from the above technical solution:
Coordinate and utilize sealing gear piece and copper sheathing sealing, make to form excellent sealing between rotor and shaft seal housing, and by offering vent hole, utilize vent hole in time the high-temperature gas leaked to be dredged, the utility model structure is simple, uses and processes more convenient, easy to maintenance, and cost is lower, is comparatively easy to apply, there is larger use value; Further, on shaft seal housing, copper sheathing ratio is easier to repair, clearance requirement when can ensure very well to assemble between copper sheathing and sealing gear piece, is exactly that assembling is simple on the whole, easily ensures the clearance requirement of design.
For more clearly setting forth structure characteristic of the present utility model and effect, below in conjunction with accompanying drawing and specific embodiment, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the preferred embodiment of the utility model.
Accompanying drawing identifier declaration:
10, shaft seal housing 11, shaft head section
12, axle rear 101, vent hole
20, gear piece 30, copper sheathing sealing is sealed
40, rotor.
Embodiment
Please refer to shown in Fig. 1, that show the concrete structure of the preferred embodiment of the utility model, comprise shaft seal housing 10, sealing gear piece 20 and copper sheathing sealing 30.
This shaft seal housing 10 is fixed on axial flow compressor housing (not shown), sealing gear piece 20 is fixed on rotor 40, this copper sheathing sealing 30 to be embedded on shaft seal housing 10 and to be positioned at the periphery of sealing gear piece 20, and this shaft seal housing 10 is provided with in time the vent hole 101 that the high-temperature gas leaked is dredged.
Specifically, in the present embodiment, this shaft seal housing 10 includes shaft head section 11 and the axle rear 12 of one-body molded connection, the diameter of shaft head section 11 is less than the diameter of axle rear 12, vent hole 101 is arranged in shaft head section 11, this vent hole 101 is spaced three rows, and, be all inlaid with aforementioned copper sheathing sealing 30 in this shaft head section 11 and axle rear 12.
In addition, this axial flow compressor housing has bullport (not shown) and adds outlet pipe (not shown), outlet pipe is communicated with between bullport and vent hole, in time the pressurized gas of leakage are dredged emptying.
Design focal point of the present utility model is: coordinate and utilize sealing gear piece and copper sheathing sealing, make to form excellent sealing between rotor and shaft seal housing, and by offering vent hole, utilize vent hole in time the high-temperature gas leaked to be dredged, the utility model structure is simple, uses and processes more convenient, easy to maintenance, and cost is lower, is comparatively easy to apply, there is larger use value; Further, on shaft seal housing, copper sheathing ratio is easier to repair, clearance requirement when can ensure very well to assemble between copper sheathing and sealing gear piece, is exactly that assembling is simple on the whole, easily ensures the clearance requirement of design.
Below know-why of the present utility model is described in conjunction with specific embodiments.These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection domain by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, and these modes all will fall within protection domain of the present utility model.
Claims (5)
1. a modified model gland seal system, is characterized in that: comprise shaft seal housing, sealing gear piece and copper sheathing sealing; This shaft seal housing is fixed on axial flow compressor housing, and sealing gear piece is fixed on rotor, and this copper sheathing closed set is on shaft seal housing and be positioned at the periphery of sealing gear piece, and this shaft seal housing is provided with in time the vent hole dredged of high-temperature gas leaked.
2. a kind of modified model gland seal system as claimed in claim 1, is characterized in that: described shaft seal housing includes shaft head section and the axle rear of one-body molded connection, and the diameter of shaft head section is less than the diameter of axle rear, and vent hole is arranged in shaft head section.
3. a kind of modified model gland seal system as claimed in claim 2, is characterized in that: described vent hole is spaced three rows.
4. a kind of modified model gland seal system as claimed in claim 2, is characterized in that: be all inlaid with the sealing of aforementioned copper sheathing in described shaft head section and axle rear.
5. a kind of modified model gland seal system as claimed in claim 1, is characterized in that: described axial flow compressor housing has bullport and adds outlet pipe, and outlet pipe is communicated with between bullport and vent hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520051107.9U CN204553320U (en) | 2015-01-26 | 2015-01-26 | A kind of modified model gland seal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520051107.9U CN204553320U (en) | 2015-01-26 | 2015-01-26 | A kind of modified model gland seal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204553320U true CN204553320U (en) | 2015-08-12 |
Family
ID=53828441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520051107.9U Active CN204553320U (en) | 2015-01-26 | 2015-01-26 | A kind of modified model gland seal system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204553320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143517A (en) * | 2017-07-19 | 2017-09-08 | 重庆水泵厂有限责任公司 | The contactless shaft seal structure of high-pressure pump |
-
2015
- 2015-01-26 CN CN201520051107.9U patent/CN204553320U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107143517A (en) * | 2017-07-19 | 2017-09-08 | 重庆水泵厂有限责任公司 | The contactless shaft seal structure of high-pressure pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |