CN213627845U - Main shaft sealing device of water turbine - Google Patents
Main shaft sealing device of water turbine Download PDFInfo
- Publication number
- CN213627845U CN213627845U CN202022653259.XU CN202022653259U CN213627845U CN 213627845 U CN213627845 U CN 213627845U CN 202022653259 U CN202022653259 U CN 202022653259U CN 213627845 U CN213627845 U CN 213627845U
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- Prior art keywords
- main shaft
- ring
- water
- shell
- sealing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 126
- 238000007789 sealing Methods 0.000 title claims abstract description 49
- 238000012856 packing Methods 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 abstract description 11
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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
The utility model provides a hydraulic turbine main shaft sealing device, including the main shaft, at the inner circle of main shaft fixed seal bearing, the fixed shell that is provided with on sealed bearing outer circle, nested umbelliform water guide ring on the main shaft in the shell of far water end, it is sealed through the packing between umbelliform water guide ring and the main shaft, be provided with back on the shell of far water end and collude the ring, it forms the water receiving ring of shell to collude the ring, tip at umbelliform water guide ring is provided with arc water guide ring, the lower extreme of arc water guide ring corresponds with the water receiving ring, be provided with the sealing ring on the main shaft that the water receiving ring corresponds, sealing ring and shell sliding fit, be provided with the outlet pipe bottom the shell. The utility model discloses a fix the umbelliform water conservancy diversion ring that is used for water conservancy diversion percolating water on sealed bearing in shell and the shell, in will seep water conservancy diversion to the water guide ring, discharge from the outlet pipe of shell bottom again. The shell is provided with the air inlet and the air outlet, so that the effect of adjusting the pressure in the shell can be achieved. The utility model discloses simple structure, simple to operate, sealed effect is showing moreover.
Description
Technical Field
The utility model belongs to the technical field of the power station, specifically speaking relates to an use main shaft seal device at hydraulic turbine main shaft.
Background
The hydraulic generator is a generator which takes a hydraulic turbine as a prime mover to convert water energy into electric energy. When water flows through the water turbine, water energy is converted into mechanical energy, and a rotating shaft of the water turbine drives a rotor of the generator to convert the mechanical energy into electric energy for output. Is the main power equipment for generating electric energy in a hydropower station. The main shaft of the water turbine plays an important role in the working process of the water turbine. One end of the main shaft of the water turbine is a near water end, the other end of the main shaft of the water turbine is a far water end, and a generator is installed at the far water end. Therefore, the sealing effect of the main shaft of the water turbine is important. The sealing device of the existing water turbine main shaft is generally sealed by a packing, but the sealing effect is poor after the sealing device is used for a long time, and water leaks to the far water end of the water turbine main shaft and then enters a generator system to influence the operation of the whole unit.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure installs convenient hydraulic turbine main shaft sealing device, through fixing the umbelliform water conservancy diversion ring that is used for water conservancy diversion percolating water in shell and the shell on sealed bearing, will seep water the water conservancy diversion in to the water guide ring, discharge from the outlet pipe of shell bottom again.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a hydraulic turbine main shaft sealing device, including the main shaft, at the inner circle of main shaft fixed seal bearing, the fixed shell that is provided with on sealed bearing outer circle, nested umbelliform water guide ring on the main shaft in the shell of far water end, it is sealed through the packing between umbelliform water guide ring and the main shaft, be provided with back on the shell of far water end and collude the ring, it forms the water receiving ring of shell to collude the ring, tip at umbelliform water guide ring is provided with arc water guide ring, the lower extreme of arc water guide ring corresponds with the water receiving ring, be provided with the sealing ring on the main shaft that the water receiving ring corresponds, sealing ring and shell sliding fit, be provided with the outlet pipe bottom the shell.
In the sealing device for the main shaft of the water turbine, the upper part of the umbrella-shaped surface of the umbrella-shaped water guide ring is radially provided with the water guide grooves by taking the main shaft as the center.
In the sealing device for the main shaft of the water turbine, the umbrella-shaped water guide ring is provided with the inner sealing rings between the two sides and the main shaft along the direction of the main shaft.
The sealing ring is fixedly arranged on the inner side of the sealing ring.
The water turbine main shaft sealing device is characterized in that the shell is provided with an air inlet and an air outlet, the air inlet is arranged on the shell at the upper part of the main shaft at the near water end, and the air outlet is arranged on the shell at the upper part of the main shaft at the far water end.
Adopt above-mentioned technical scheme, the utility model discloses there is following technological effect:
the utility model discloses a fix the umbelliform water conservancy diversion ring that is used for water conservancy diversion percolating water on sealed bearing in shell and the shell, in will seep water conservancy diversion to the water guide ring, discharge from the outlet pipe of shell bottom again. The shell is provided with the air inlet and the air outlet, so that the effect of adjusting the pressure in the shell can be achieved. The utility model discloses simple structure, simple to operate, sealed effect is showing moreover.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the umbrella-shaped deflector ring shown in fig. 1.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
Referring to fig. 1 and 2, wherein the numbers are as follows:
the water guide ring comprises a water receiving ring 1, an arc water guide ring 2, a sealing ring 3, a sealing ring 4, an umbrella-shaped water guide ring 5, a packing 6, an inner sealing ring 7, a shell 8, a sealing bearing 9, a main shaft 10, a water outlet pipe 11, a water guide groove 12, an air inlet 13 and an air outlet 14.
The utility model provides a hydraulic turbine main shaft sealing device, including main shaft 10, at the inner circle of main shaft fixed seal bearing 9, fixedly on sealed bearing outer circle be provided with shell 8, nested umbelliform water guide ring 5 on the main shaft in the shell of far water end, sealed through packing 6 between umbelliform water guide ring 5 and the main shaft, be provided with back on the shell of far water end and collude the ring, it forms the water receiving ring 1 of shell to collude the ring, tip at umbelliform water guide ring is provided with arc water guide ring 2, the lower extreme of arc water guide ring corresponds with the water receiving ring, be provided with sealing ring 3 on the main shaft that the water receiving ring corresponds, sealing ring and shell sliding fit, be provided with outlet pipe 11 at the shell bottom. When the main shaft of the water turbine rotates, the umbrella-shaped water guide ring is driven to rotate together, so that water leaked from the sealing bearing is guided into the water receiving ring, and the water entering the water receiving ring is discharged from the water outlet pipe at the bottom under the action of gravity, so that the sealing effect is achieved.
In the sealing device for the main shaft of the water turbine, the water guide grooves 12 are radially arranged on the upper part of the umbrella-shaped surface of the umbrella-shaped water guide ring by taking the main shaft as the center, so that the leaked water can be quickly led out.
In the water turbine main shaft sealing device, the inner sealing rings 7 are arranged between the two sides of the umbrella-shaped water guide ring and the main shaft along the main shaft direction, and the umbrella-shaped water guide ring can be tightly and tightly sealed on the main shaft of the water turbine.
Above-mentioned hydraulic turbine main shaft sealing device still fixedly is provided with sealing washer 4 in the sealing ring inboard, like this, through the dual function of sealing ring and sealing washer, can play further sealed effect.
The water turbine main shaft sealing device is characterized in that an air inlet 13 and an air outlet 14 are arranged on a shell, the air inlet is arranged on the shell at the upper part of the main shaft at the near water end, and the air outlet is arranged on the shell at the upper part of the main shaft at the far water end.
The utility model discloses an installation as follows: a lower annular groove is turned on a main shaft at the far water end of the water turbine, a packing and an inner sealing ring are installed, then an umbrella-shaped water guide ring is sleeved on the main shaft and is formed into a whole by welding or clamping two semicircular water guide rings, then the sealing ring and the sealing ring are sequentially sleeved on the main shaft, and then an outer shell is covered outside the umbrella-shaped water guide ring and is fixed on an outer ring of a sealing bearing, so that the installation is completed.
The working process of the utility model is as follows: when the main shaft of the water turbine rotates, the umbrella-shaped water guide ring is driven to rotate together, so that water leaked from the sealing bearing is guided into the water receiving ring, and the water entering the water receiving ring is discharged from the water outlet pipe at the bottom under the action of gravity, so that the sealing effect is achieved.
What has been described above is only the preferred embodiments of the present invention, and it should be noted that, for those skilled in the art, without departing from the overall concept of the present invention, a plurality of changes and improvements can be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the effect of the present invention and the utility of the patent.
Claims (5)
1. A kind of hydraulic turbine main shaft seal device, including the main shaft (10), the inner circle in the main shaft fixed seal bearing (9), characterized by that: the water collecting device is characterized in that a shell is fixedly arranged on an outer ring of a sealing bearing, an umbrella-shaped water guiding ring (5) is nested on a main shaft in the shell at the far water end, the umbrella-shaped water guiding ring (5) is sealed with the main shaft through a packing (6), a hook returning ring is arranged on the shell at the far water end and forms a water collecting ring (1) of the shell, an arc-shaped water guiding ring (2) is arranged at the end part of the umbrella-shaped water guiding ring, the lower end of the arc-shaped water guiding ring corresponds to the water collecting ring, a sealing ring (3) is arranged on the main shaft corresponding to the water collecting ring, the sealing ring is in sliding fit with the shell, and a water outlet.
2. The hydraulic turbine main shaft seal device according to claim 1, characterized in that: the upper part of the umbrella-shaped surface of the umbrella-shaped water guide ring is provided with water guide grooves (12) in a radial shape by taking the main shaft as the center.
3. The hydraulic turbine main shaft seal device according to claim 1, characterized in that: inner sealing rings (7) are arranged between the two sides of the umbrella-shaped water guide ring and the main shaft along the direction of the main shaft.
4. The hydraulic turbine main shaft seal device according to claim 1, characterized in that: and a sealing ring (4) is fixedly arranged on the inner side of the sealing ring.
5. The hydraulic turbine main shaft seal device according to claim 1, characterized in that: an air inlet (13) and an air outlet (14) are arranged on the shell, the air inlet is arranged on the shell at the upper part of the main shaft at the near water end, and the air outlet is arranged on the shell at the upper part of the main shaft at the far water end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022653259.XU CN213627845U (en) | 2020-11-17 | 2020-11-17 | Main shaft sealing device of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022653259.XU CN213627845U (en) | 2020-11-17 | 2020-11-17 | Main shaft sealing device of water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213627845U true CN213627845U (en) | 2021-07-06 |
Family
ID=76633841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022653259.XU Active CN213627845U (en) | 2020-11-17 | 2020-11-17 | Main shaft sealing device of water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213627845U (en) |
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2020
- 2020-11-17 CN CN202022653259.XU patent/CN213627845U/en active Active
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