CN203562868U - A device for sealing the motor shaft of a water turbine of a sea tide power generating device - Google Patents
A device for sealing the motor shaft of a water turbine of a sea tide power generating device Download PDFInfo
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- CN203562868U CN203562868U CN201320568673.8U CN201320568673U CN203562868U CN 203562868 U CN203562868 U CN 203562868U CN 201320568673 U CN201320568673 U CN 201320568673U CN 203562868 U CN203562868 U CN 203562868U
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- sealing
- motor shaft
- seal
- motor
- power generating
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Abstract
Provided is a device for sealing the motor shaft of a water turbine of a sea tide power generating device and belongs to sea tide power generating field. The device is mainly used for sealing the motor shaft of the water turbine immersed in seawater. Seawater and silt are prevented from entering the motor by using a combined sealing manner in which labyrinth sealing using a sand-preventing ring and a sealing ring is employed and positive pressure is formed in a sealed chamber by filling oil in a gravity oil tank. The sealing device resolves a problem that the seawater and the slit enter the motor immersed in seawater environment so as to damage a motor bearing and a motor body.
Description
Technical field
The utility model belongs to sea tide generation equipment, particularly hydraulic turbine motor shaft seal.
Background technology
Marine tidal-current energy is clean regenerative resource.Development and utilization marine tidal-current energy, is significant for alleviating China's energy crisis.Tidal power generating is stable, pollution-free and development technique comparative maturity.But because generating equipment is built up in sea, the hydraulic turbine partly wants long period of soaking in seawater, the sealing that is dynamically connected of the hydraulic turbine and generator is very crucial.This sealing device is the sealing specialized designs for the motor shaft of the sea tide generation equipment hydraulic turbine.
Summary of the invention
In order to overcome seawater and silt enters motor body, the destruction to bearing and motor, the utility model provides a kind of sealing device, has realized the sealing to hydraulic turbine motor shaft under sea water immersion environment.
The utility model solves the technical scheme that its technical problem adopts:
By sand prevention ring, add the labyrinth seal of sealing ring, the compound mode that forms normal pressure by the oiling of gravity mailbox in annular seal space seals.
Chief component: be fixed on the metal shell of motor casing, the lining rotating with motor shaft and rubber seal.Large because considering hydraulic turbine operation environment silt content again, so there is the sand prevention circle of design.Also is furnished with in addition the gravity tank of a 30L.
Shell is comprised of body, seal receptacle, seal cover etc., with bolt, couples together respectively, and press seal circle.The lip of sealing ring contacts with lining.Owing to being subject to hydraulic pressure, oil pressure, the effect of the elastic force of rubber itself and the tightening force of spring, makes to keep between lip and lining certain radial load, thereby keeps sealing.
accompanying drawing explanation:
Fig. 1 is the side sectional view of sealing of the motor shaft of the utility model hydraulic turbine.
The utility model hydraulic turbine motor shaft sealing device main parts size mounting structure as shown in Figure 1.
In Fig. 1,1---motor shaft, 2---lining, 3---rubber ring, 4---packing ring, 5---sand prevention ring,
6---seal cover, 7---seal receptacle (), 8---nipple, 9---seal receptacle (two), 10---sealing ring,
11---spring, 12---O RunddichtringO, 13---seal body, 14---lubricating oil
embodiment:
Below in conjunction with the drawings and specific embodiments, further illustrate the sealing of the utility model hydraulic turbine motor shaft.
First (1) motor shaft is brushed to lubricating oil, respectively two (12) O type circles are put into (2) lining, (2) lining is shifted onto to the service position on (1) motor shaft, with three tight fixed bolt location, notice that tight fixed bolt will join brill location hole with (1) motor shaft, rely on bolt and location, hole, do not allow active force between bolt and (2) lining and lining is out of shape, affect the circularity of Outer Diameter of lining, the whole structure of final impact sealing.Then (13) seal body and (9) seal receptacle (two) are installed together by soket head cap screw, before installation first by (10) sealing ring, (11) spring fitting to position shown in Fig. 1, then according to position shown in Fig. 1, two (12) O type circles are being put on (9) seal receptacle (two).After completing, integral body is inserted in (1) motor shaft, the hole by (9) seal receptacle (two) bolt being incorporated on electric motor end cap.Successively (10) sealing ring, (11) spring, (7) seal receptacle () are pressed to Fig. 1 position and installed, be then installed together by soket head cap screw with (9) seal receptacle (two).Then (10) sealing ring, (11) spring, (6) seal cover being pressed to Fig. 1 position installs.Finally (3) rubber ring, (4) packing ring, (5) sand prevention ring are pressed to Fig. 1 position and are installed, then with (6) seal cover by hexagon socket head cap screw be connected tighten fixing.(8) nipple and (7) seal receptacle () are tightened, and the other end is connected with gravity tank, after oil circuit is cleaned up, then fills with (14) lubricating oil as the sealed chamber of sealing device.
Claims (4)
1. a novel sea tide generation equipment hydraulic turbine motor shaft seal, has the metal shell that is fixed on motor casing, and the lining rotating with motor shaft and rubber seal, have sand prevention ring.
2. hydraulic turbine motor shaft seal according to claim 1, is characterized in that described sealing device has the metal shell of motor casing, and shell is comprised of seal cover (6), seal receptacle (7), seal receptacle (two) (9), seal body (13).
3. hydraulic turbine motor shaft seal according to claim 1, is characterized in that described sealing device has the shell of being positioned at front end, is connected to the sand prevention ring (5) of shell.
4. hydraulic turbine motor shaft seal according to claim 3, is characterized in that having rubber ring (3), packing ring (4) in the described sand prevention ring that is connected to shell (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568673.8U CN203562868U (en) | 2013-09-13 | 2013-09-13 | A device for sealing the motor shaft of a water turbine of a sea tide power generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568673.8U CN203562868U (en) | 2013-09-13 | 2013-09-13 | A device for sealing the motor shaft of a water turbine of a sea tide power generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203562868U true CN203562868U (en) | 2014-04-23 |
Family
ID=50512566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320568673.8U Expired - Fee Related CN203562868U (en) | 2013-09-13 | 2013-09-13 | A device for sealing the motor shaft of a water turbine of a sea tide power generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203562868U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806736A (en) * | 2015-04-21 | 2015-07-29 | 苏州船用动力***股份有限公司 | Propeller shaft sealing structure of ship propeller |
-
2013
- 2013-09-13 CN CN201320568673.8U patent/CN203562868U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806736A (en) * | 2015-04-21 | 2015-07-29 | 苏州船用动力***股份有限公司 | Propeller shaft sealing structure of ship propeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20180913 |