CN209800153U - Bulb machine telescopic joint structure with wedge-shaped seal - Google Patents
Bulb machine telescopic joint structure with wedge-shaped seal Download PDFInfo
- Publication number
- CN209800153U CN209800153U CN201920076983.5U CN201920076983U CN209800153U CN 209800153 U CN209800153 U CN 209800153U CN 201920076983 U CN201920076983 U CN 201920076983U CN 209800153 U CN209800153 U CN 209800153U
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- CN
- China
- Prior art keywords
- wedge
- shaped
- gland
- seal
- sealing groove
- 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
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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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- Sealing Devices (AREA)
Abstract
The utility model relates to a tubular turbine technical field, in particular to lamp turbine telescopic joint structure with it is sealed to agree with shape, including draft tube flange, fixing base, gland, fixing base and draft tube flange joint's bolt, the bolt that gland and fixing base are connected, agree with the shape and seal, the runner room. The structure is characterized in that a wedge-shaped sealing groove and a wedge-shaped seal are designed on the inner side of the fixing seat, and the wedge-shaped seal is tightly pressed between the wedge-shaped sealing groove and the runner chamber through a pressing cover. The telescopic joint structure of the bulb machine has the advantages that wedge-shaped sealing can well compensate the influence of uneven size of the sealing groove, can adapt to the size change of the sealing groove generated by factors such as installation, vibration, processing and the like, still can effectively compress the sealing on the sealing groove, and ensures sealing.
Description
Technical Field
The utility model relates to a tubular turbine technical field, in particular to bulb tubular turbine telescopic joint structure.
Background
The expansion joint is required to be arranged between the runner chamber of the bulb through-flow turbine and the tail water pipe flange, because the turbine vibrates in the operation process and has deviation in the installation process, the expansion joint can compensate the influence generated by vibration or installation deviation. Due to the vibration and size deviation, the size of the sealing groove is difficult to be consistent with the design value, and particularly, large deviation is generated in the circumferential direction, so that the local compression amount of the expansion joint sealing is insufficient, the local compression amount is too large, the sealing is easy to leak water, and the reliability is not high.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that bulb tubular turbine telescopic joint sealing reliability is not high, leaks easily, the utility model discloses according to the easy characteristics that produce the deviation of bulb machine telescopic joint seal groove size, design a sealed effectual, the reliable structure bulb machine telescopic joint structure.
The utility model adopts the technical proposal that: the telescopic joint fixing seat is connected with the tail water pipe flange through a bolt, a wedge-shaped sealing groove is formed in the inner side of the fixing seat, a wedge-shaped seal is arranged, and the wedge-shaped seal is tightly pressed in the sealing groove through a pressing cover. Because sealed shape and seal groove shape are wedge, even the seal groove size produces the condition inconsistent with the design size because of the reason of installation or processing, through wedge seal can be fine compensate the influence of seal groove size change, can effectively compress tightly sealed on the seal groove, ensure sealed. The structure can transmit the vibration of the runner chamber to the fixed seat through the compressed wedge-shaped seal, and the force transmitted to the gland is very small, thereby ensuring the stability of the gland structure.
Drawings
Fig. 1 is a schematic structural diagram of the utility model.
In the figure: 1. a tail water pipe flange; 2. a fixed seat; 3. a bolt; 4. a gland; 5. a bolt; 6. wedge-shaped sealing; 7. rotating wheel chamber
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the telescopic joint structure of the bulb machine with wedge-shaped seal comprises a fixed seat 2, wherein the fixed seat 2 is fixed on a tail water pipe flange 1 through a bolt 3, a wedge-shaped seal groove is formed in the inner side of the fixed seat 2, a wedge-shaped seal 6 is arranged in the wedge-shaped seal groove, a gland 4 is pressed on the fixed seat 2 through a bolt 5, the gland is L-shaped, and one end of the gland presses the wedge-shaped seal 6 in the wedge-shaped seal groove. Because the wedge-shaped seal is provided with the inclined plane with larger inclination, the sealing effect can be ensured by adjusting the wedge-shaped seal inwards or outwards even if the radial size of the seal groove has deviation. Because wedge-shaped seal 6 has longer inclined plane contact with fixing base 2, the vibration of runner chamber 7 can be transmitted to fixing base 2 through wedge-shaped seal 6, and the vibration quantity transmitted to gland 4 can be very little, can ensure gland 4 structure firm like this, ensure to seal enough long life.
Claims (3)
1. Bulb machine telescopic joint structure with wedge is sealed, including tail water pipe flange, fixing base, gland, wedge seal, runner chamber to and the bolt of connecting fixing base and tail water pipe flange and the bolt of connecting gland and fixing base, its characterized in that: the telescopic joint fixing seat is provided with a wedge-shaped sealing groove, and the wedge-shaped sealing is compressed between the wedge-shaped sealing groove and the runner chamber through a gland, so that the telescopic joint is sealed.
2. The bulb engine expansion joint structure with wedge seal of claim 1, wherein: the inner side of the fixed seat is provided with a wedge-shaped sealing groove with an inclined plane, and a wedge-shaped seal which is matched with the inclined plane is arranged between the wedge-shaped sealing groove and the runner chamber.
3. The bulb engine expansion joint structure with wedge seal of claim 1, wherein: the gland is L-shaped, one end of the gland is connected with the fixed seat through a bolt, and the other end of the gland tightly presses the wedge-shaped seal in the wedge-shaped seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920076983.5U CN209800153U (en) | 2019-01-18 | 2019-01-18 | Bulb machine telescopic joint structure with wedge-shaped seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920076983.5U CN209800153U (en) | 2019-01-18 | 2019-01-18 | Bulb machine telescopic joint structure with wedge-shaped seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209800153U true CN209800153U (en) | 2019-12-17 |
Family
ID=68820222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920076983.5U Expired - Fee Related CN209800153U (en) | 2019-01-18 | 2019-01-18 | Bulb machine telescopic joint structure with wedge-shaped seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209800153U (en) |
-
2019
- 2019-01-18 CN CN201920076983.5U patent/CN209800153U/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: 20191217 Termination date: 20210118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |