CN207893130U - Vertical turbine double flat plate main shaft seal - Google Patents
Vertical turbine double flat plate main shaft seal Download PDFInfo
- Publication number
- CN207893130U CN207893130U CN201820309770.8U CN201820309770U CN207893130U CN 207893130 U CN207893130 U CN 207893130U CN 201820309770 U CN201820309770 U CN 201820309770U CN 207893130 U CN207893130 U CN 207893130U
- Authority
- CN
- China
- Prior art keywords
- seal
- flat plate
- upper flat
- lower tablet
- sealing shroud
- 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
Classifications
-
- 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
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses a kind of vertical turbine double flat plate main shaft seal, and seal is installed at the top of seal receptacle, and sealing shroud is equipped in the seal；Lower tablet is installed in groove at the top of seal receptacle, lower tablet is located at below sealing shroud；Upper flat plate is equipped in annular groove at the top of seal, upper flat plate is pressed on by the pressing plate at top on seal, and upper flat plate top surface is contacted with the flanging bottom surface at the top of sealing shroud；The inner wall upper edge of seal is axially arranged with annular seal groove, and is radially provided with osculum on the seal between lower tablet and upper flat plate.The utility model increases upper flat plate on the basis of existing lower tablet, and osculum is increased between lower tablet and upper flat plate, tablet is tightly attached to the end face for the sealing shroud being fixed on main shaft under hydraulic pressure effect at present for work, to play sealing function, a small amount of leak enters in seal；If the osculum that water leakage can be arranged on sealed body greatly exhausts, to which the effect of water shutoff be fully achieved.
Description
Technical field
The utility model belongs to vertical turbine field, is related to a kind of vertical turbine double flat plate main shaft seal.
Background technology
Main shaft seal is double flat plate diffused labyrinth seal, mainly by groups such as seal, sealing shroud, seal receptacle, sealing plates
At.Existing structure is single plate seal, it the shortcomings that be only together seal, service life is short, and be easy failure.
Utility model content
A kind of the technical problem to be solved by the utility model is to provide sealing effects good, not vulnerable vertical water turbine
Machine double flat plate main shaft seal.
The technical solution of the utility model is as follows：A kind of vertical turbine double flat plate main shaft seal, it is characterised in that：Including
It is installed with seal (2) at the top of seal receptacle (1) and pressing plate (6), wherein seal receptacle (1), the close of rotation is equipped in the seal (2)
Big envelope (3)；It is installed with lower tablet (4) in groove at the top of the seal receptacle (1), if the lower tablet is folded by dried layer rubber gasket sheet
Add, and lower tablet (4) is located at below sealing shroud (3)；Upper flat plate (5) is equipped in annular groove at the top of the seal (2), it should
If upper flat plate is formed by stacking by dried layer rubber gasket sheet, and upper flat plate (5) is pressed on seal by the pressing plate (6) at top
(2) on, upper flat plate (5) top surface is contacted with the flanging bottom surface at the top of the sealing shroud (3), and seal receptacle (1), seal (2),
Sealing shroud (3), lower tablet (4) and upper flat plate (5) coaxial arrangement；It is close that the inner wall upper edge of the seal (2) is axially arranged with annular
Sealing groove (2a), there are spacing between these annular seal grooves (2a) and the sealing shroud (3) outer wall, and lower tablet (4) and upper flat
It is radially provided with osculum (2b) on seal (2) between plate (5).
This case increases upper flat plate on the basis of existing lower tablet, and draining is increased between lower tablet and upper flat plate
Hole, tablet is tightly attached to the end face for the sealing shroud (3) being fixed on main shaft under hydraulic pressure effect at present for work, to play sealing
Effect, a small amount of leak enter in seal (2)；If the osculum that water leakage can be arranged on sealed body (2) greatly exhausts, to complete
Have the function that water shutoff entirely.Once lower tablet failure, upper flat plate proceed with one's work, so that it is guaranteed that sealed reliable and extension use the longevity
Life.
Preferably, the upper flat plate (5) and lower tablet (4) are respectively formed by stacking by two pieces of rubber gasket sheets.
Advantageous effect：The utility model increases upper flat plate on the basis of existing lower tablet, and in lower tablet and upper flat
Osculum is increased between plate, tablet is tightly attached to the end face for the sealing shroud being fixed on main shaft under hydraulic pressure effect at present for work,
To play sealing function, a small amount of leak enters in seal；If the osculum that water leakage can be arranged on sealed body greatly exhausts,
To which the effect of water shutoff be fully achieved.Once lower tablet failure, upper flat plate proceeds with one's work, so that it is guaranteed that sealed reliable and extension make
Use the service life.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the partial enlarged view of part A in Fig. 1.
Fig. 3 is the partial enlarged view of part B in Fig. 1.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples：
As shown in Fig. 1,2 and 3, a kind of vertical turbine double flat plate main shaft seal, including seal receptacle 1 and pressing plate 6, wherein close
1 top of envelope seat is installed with seal 2, and the sealing shroud 3 of rotation is equipped in the seal 2.It is installed in the groove at 1 top of seal receptacle
Lower tablet 4, if the lower tablet is formed by stacking by dried layer rubber gasket sheet, and lower tablet 4 is located at 3 lower section of sealing shroud.Seal 2 pushes up
Upper flat plate 5 is equipped in the annular groove in portion, if the upper flat plate is formed by stacking by dried layer rubber gasket sheet, and upper flat plate 5 passes through top
Pressing plate 6 is pressed on seal 2, and 5 top surface of upper flat plate is contacted with the flanging bottom surface at 3 top of sealing shroud, and seal receptacle 1, sealing
Body 2, sealing shroud 3, lower tablet 4 and upper flat plate 5 are coaxially disposed.The inner wall upper edge of seal 2 is axially arranged with annular seal groove 2a, this
There are spacing between 3 outer walls of a little annular seal groove 2a and sealing shroud, and the 2 upper edge diameter of seal between lower tablet 4 and upper flat plate 5
To being provided with osculum 2b.Upper flat plate 5 and lower tablet 4 are respectively formed by stacking by two pieces of rubber gasket sheets.
The above is only the preferred embodiment of the utility model only, is not limitation with the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (2)
1. a kind of vertical turbine double flat plate main shaft seal, it is characterised in that：Including seal receptacle (1) and pressing plate (6), wherein sealing
It is installed with seal (2) at the top of seat (1), the sealing shroud (3) of rotation is equipped in the seal (2)；At the top of the seal receptacle (1)
Lower tablet (4) is installed in groove, if the lower tablet is formed by stacking by dried layer rubber gasket sheet, and lower tablet (4) is located at sealing
It covers below (3)；Upper flat plate (5) is equipped in annular groove at the top of the seal (2), if the upper flat plate is folded by dried layer rubber gasket sheet
Add, and upper flat plate (5) is pressed on by the pressing plate (6) at top on seal (2), upper flat plate (5) top surface with it is described
At the top of sealing shroud (3) flanging bottom surface contact, and seal receptacle (1), seal (2), sealing shroud (3), lower tablet (4) and it is upper put down
Plate (5) is coaxially disposed；The inner wall upper edge of the seal (2) is axially arranged with annular seal groove (2a), these annular seal grooves
There are spacing between (2a) and the sealing shroud (3) outer wall, and seal (2) upper edge between lower tablet (4) and upper flat plate (5)
Radial direction is provided with osculum (2b).
2. vertical turbine double flat plate main shaft seal according to claim 1, it is characterised in that：The upper flat plate (5) and
Lower tablet (4) is respectively formed by stacking by two pieces of rubber gasket sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820309770.8U CN207893130U (en) | 2018-02-28 | 2018-02-28 | Vertical turbine double flat plate main shaft seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820309770.8U CN207893130U (en) | 2018-02-28 | 2018-02-28 | Vertical turbine double flat plate main shaft seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207893130U true CN207893130U (en) | 2018-09-21 |
Family
ID=63541099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820309770.8U Expired - Fee Related CN207893130U (en) | 2018-02-28 | 2018-02-28 | Vertical turbine double flat plate main shaft seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207893130U (en) |
-
2018
- 2018-02-28 CN CN201820309770.8U patent/CN207893130U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180921 Termination date: 20190228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |