CN202338435U - Spindle combining sealing device - Google Patents
Spindle combining sealing device Download PDFInfo
- Publication number
- CN202338435U CN202338435U CN2011204460082U CN201120446008U CN202338435U CN 202338435 U CN202338435 U CN 202338435U CN 2011204460082 U CN2011204460082 U CN 2011204460082U CN 201120446008 U CN201120446008 U CN 201120446008U CN 202338435 U CN202338435 U CN 202338435U
- Authority
- CN
- China
- Prior art keywords
- spindle
- seal
- main shaft
- sealing device
- cover
- 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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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Hydraulic Turbines (AREA)
Abstract
A spindle combining sealing device comprises a spindle, a spindle protecting sleeve, packing, a seal seat, a front cover, a seal cover and an air shroud. One end of the seal seat is sleeved on the periphery of the spindle protecting sleeve, the other end of the seal seat is fixed on the front cover, the packing is sealed in a cavity enclosed by the seal seat and the spindle protecting sleeve through a press cover, the seal cover is sleeved on the spindle, the air shroud is arranged between the seal seat and the seal cover, and the front cover, the seal seat and the seal cover are fixed together through bolts. The spindle combining sealing device is good in sealing performance, stable in structure and favorable for industrial production.
Description
Technical field
The utility model relates to a kind of novel vertical hydraulic generator unit spindle combinations sealing, is specially spindle-combined sealing device.
Background technique
Main shaft seal is the key technology of hydraulic generator unit, and the quality of main shaft seal directly influences the quality and the safe and stable operation of unit, and the main shaft seal that traditional vertical hydraulic generator unit is commonly used has: rubber flat plate sealing, radial seal, hydraulic pressure end face seal, air shroud sealing etc.; In the various fields that are sealed in separately good sealing effect is arranged all, still, it is big always water leakage to occur; Complex structure; Problems such as it is difficult that maintenance is installed, easy to wear make commercial production effectively not carry out; And life of equipment is short, is unfavorable for the expansion production of industry.
The model utility content
The technical problem that the utility model solved is to provide spindle-combined sealing device, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solved adopts following technological scheme to realize:
Spindle-combined sealing device; Comprise main shaft, main shaft protecting jacket, packing, sealing seat, protecgulum, seal closure, air shroud; Said sealing seat one end is sheathed on the periphery of said main shaft protecting jacket, and the other end is fixed on the said protecgulum, said packing through gland seal in the cavity that said sealing seat and main shaft protecting jacket surround; Said seal closure is sheathed on the main shaft, is provided with air shroud between said sealing seat and the seal closure.
In the utility model, said protecgulum, sealing seat, seal closure are through said bolt together.
Beneficial effect: the utility model can both have good sealing effect no matter be at whole combination seal when work or shutdown maintenance; Compare with independent packing_seal in the past; Sealing effect is better, and life time is longer, has practiced thrift waterpower resourses greatly; Improve the reliability and stability of unit operation, help the production of industry.
Description of drawings
Fig. 1 is the general assembly schematic representation of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1 is the general assembly schematic representation of spindle-combined sealing device; Comprise main shaft 1, main shaft protecting jacket 2, packing 3, sealing seat 4, protecgulum 5, seal closure 8, air shroud 7; Said sealing seat 4 one ends are sheathed on the periphery of said main shaft protecting jacket 2, and the other end is fixed on the said protecgulum 5, and said packing 3 is sealed in the cavity that said sealing seat 4 and main shaft protecting jacket 2 surround through gland 6; Said seal closure 8 is sheathed on the main shaft 1, is provided with air shroud 7 between said sealing seat 4 and the seal closure 8.
In the utility model, said protecgulum 5, sealing seat 4, seal closure 8 are fixed together through said bolt 9.
When hydraulic turbine operation,, guarantee the coaxality of main shaft protecting jacket 2 and main shaft 1 in order to prevent the packing that weares and teares; Main shaft protecting jacket 2 is fixed on the main shaft 1 through bolt 9, and water turbine feeds pressurized gas in air shroud 7 when maintenance; Make air shroud 7 receive compression swelling, carry out the maintenance of water turbine.
More than show and described basic principle of the utility model and the advantage of major character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (2)
1. spindle-combined sealing device; Comprise main shaft, main shaft protecting jacket, packing, sealing seat, protecgulum, seal closure, air shroud, it is characterized in that said sealing seat one end is sheathed on the periphery of said main shaft protecting jacket; The other end is fixed on the said protecgulum; In the cavity that said sealing seat and main shaft protecting jacket surround, said seal closure is sheathed on the main shaft said packing, is provided with air shroud between said sealing seat and the seal closure through gland seal.
2. spindle-combined sealing device according to claim 1 is characterized in that, said protecgulum, sealing seat, seal closure are through said bolt together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204460082U CN202338435U (en) | 2011-11-13 | 2011-11-13 | Spindle combining sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204460082U CN202338435U (en) | 2011-11-13 | 2011-11-13 | Spindle combining sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202338435U true CN202338435U (en) | 2012-07-18 |
Family
ID=46487127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204460082U Expired - Lifetime CN202338435U (en) | 2011-11-13 | 2011-11-13 | Spindle combining sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202338435U (en) |
-
2011
- 2011-11-13 CN CN2011204460082U patent/CN202338435U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120718 |