CN203430687U - Sealing device of water turbine main shaft - Google Patents
Sealing device of water turbine main shaft Download PDFInfo
- Publication number
- CN203430687U CN203430687U CN201320447546.2U CN201320447546U CN203430687U CN 203430687 U CN203430687 U CN 203430687U CN 201320447546 U CN201320447546 U CN 201320447546U CN 203430687 U CN203430687 U CN 203430687U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- turbine main
- sealing
- hydraulic turbine
- sealing device
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 24
- 230000002265 prevention Effects 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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
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- Hydraulic Turbines (AREA)
Abstract
The utility model relates to a sealing device of a water turbine main shaft. The sealing device comprises the water turbine main shaft and a rotary ring, wherein the rotary ring is fixedly arranged on the water turbine main shaft through a fastener, the water turbine main shaft is provided with a sealing frame, the sealing frame is provided with a sealing annular groove, the sealing annular groove is positioned between the rotary ring and the sealing frame, a sealing gap is formed between the sealing annular groove and the rotary ring, the interior of the sealing annular groove is provided with a rubber ring, the sealing gap is smaller than the thickness of the rubber ring, the sealing frame is provided with a water groove which is communicated with the sealing annular groove, and the sealing frame is provided with a pressure water inlet pipe which is communicated with the water groove. The sealing device of the water turbine main shaft has the advantages that the sealing gap is adjusted by the rubber ring under the action of water pressure; when the machine load changes and further causes the vertical playing of the rotary part, the rubber ring is still attached to the rotary ring under the action of the water pressure, so the sealing effect is good, and the good leakage prevention effect is realized.
Description
Technical field
The utility model relates to a kind of seal arrangement, relates in particular to a kind of hydraulic turbine main shaft sealing device.
Background technique
The dynamic power machine that water turbine is is rotating mechanical energy the transformation of energy of current, it belongs to the turbomachinery in fluid machinery.Modern water turbine great majority is arranged in water power plant, is used for driving generator generating.In water power plant, the water in upper pond is guided water turbine into through aqueduct, promotes rotary wheel of water turbine rotation, drives generator generating.The water of finishing merit passes through tail water pipeline discharged to downstream.Head is higher, flow is larger, and the output power of water turbine is also just larger.Hydraulic turbine main shaft sealing device is important parts in water turbine, the hydraulic turbine main shaft sealing device of prior art adopts nylon end face seal, due to spring pressure is inhomogeneous, corrosion is disrumpent feelings and pallet and seal rack between the resistance of rubber packing, adding silt stops up and parts corrosion, while causing the upper and lower play of rotating part when unit load variation, because seal rack can not be movable along with easy on and off, and cause a large amount of leaking.
Model utility content
The utility model object is the hydraulic turbine main shaft sealing device that a kind of good sealing effect is provided in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of hydraulic turbine main shaft sealing device, comprise hydraulic turbine main shaft and change, and described change is fixed on hydraulic turbine main shaft by fastening piece, and described hydraulic turbine main shaft is provided with seal rack; Described seal rack is provided with closure gasket groove; Described closure gasket groove is between change and seal rack; Between described closure gasket groove and change, leave seal clearance; In described closure gasket groove, be provided with rubber ring; Described seal clearance is less than the thickness of rubber ring; Described seal rack is provided with the tank communicating with closure gasket groove; Described seal rack is provided with the pressure intake pipe communicating with tank.
Preferably, described closure gasket groove is arranged on an end face of seal rack; Described tank is arranged on another end face of seal rack; Described seal rack is provided with the circular hole that closure gasket groove is communicated with tank.
Preferably, on described rubber ring, have annular groove.
Preferably, between described change and hydraulic turbine main shaft, be provided with rubber strip.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
Hydraulic turbine main shaft sealing device of the present utility model, rubber ring is adjusted seal clearance under the effect of hydraulic pressure, while causing the upper and lower play of rotating part when unit load variation, rubber ring still can be fitted with change under the effect of hydraulic pressure, good sealing effect, has reached good leakage-proof effect.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
The structural representation that accompanying drawing 1 is hydraulic turbine main shaft sealing device of the present utility model;
Wherein: 1, hydraulic turbine main shaft; 2, change; 3, fastening piece; 4, rubber strip; 5, seal rack; 6, closure gasket groove; 7, seal clearance; 8, rubber ring; 9, groove; 10, tank; 11, circular hole; 12, pressure intake pipe.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Described in the utility model a kind of hydraulic turbine main shaft sealing device as shown in Figure 1, comprises hydraulic turbine main shaft 1 and change 2, and described change 2 is fixed on hydraulic turbine main shaft 1 by fastening piece 3, and 1 of described change 2 and hydraulic turbine main shaft are provided with rubber strip 4; Described hydraulic turbine main shaft 1 is provided with seal rack 5; Described seal rack 5 is provided with closure gasket groove 6; Described closure gasket groove 6 is between change 2 and seal rack 5; 2 of described closure gasket groove 6 and changes leave seal clearance 7; In described closure gasket groove 6, be provided with rubber ring 8; Described seal clearance 7 is less than the thickness of rubber ring 8; On described rubber ring 8, have annular groove 9; Described seal rack 5 is provided with the tank 10 communicating with closure gasket groove 6; General, described closure gasket groove 6 is arranged on an end face of seal rack 5; Described tank is arranged on another end face of seal rack 5; Described seal rack 5 is provided with the circular hole 11 that closure gasket groove 6 is communicated with tank 10; Described seal rack 5 is provided with the pressure intake pipe 12 communicating with tank 10.
Hydraulic turbine main shaft sealing device of the present utility model, during use, pressure intake pipe 12 starts water inlet, water enters tank 10 and closure gasket groove 6 successively, rubber ring 8 is fitted with change 2 under the effect of pressure, and while causing the upper and lower play of rotating part when unit load variation, rubber ring 8 still can be fitted with change 2 under the effect of hydraulic pressure, good sealing effect, has reached good leakage-proof effect.
Below be only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technological scheme of formation, within all dropping on the utility model rights protection scope.
Claims (4)
1. a hydraulic turbine main shaft sealing device, comprises hydraulic turbine main shaft and change, and described change is fixed on hydraulic turbine main shaft by fastening piece, it is characterized in that: described hydraulic turbine main shaft is provided with seal rack; Described seal rack is provided with closure gasket groove; Described closure gasket groove is between change and seal rack; Between described closure gasket groove and change, leave seal clearance; In described closure gasket groove, be provided with rubber ring; Described seal clearance is less than the thickness of rubber ring; Described seal rack is provided with the tank communicating with closure gasket groove; Described seal rack is provided with the pressure intake pipe communicating with tank.
2. hydraulic turbine main shaft sealing device according to claim 1, is characterized in that: described closure gasket groove is arranged on an end face of seal rack; Described tank is arranged on another end face of seal rack; Described seal rack is provided with the circular hole that closure gasket groove is communicated with tank.
3. hydraulic turbine main shaft sealing device according to claim 1 and 2, is characterized in that: on described rubber ring, have annular groove.
4. hydraulic turbine main shaft sealing device according to claim 3, is characterized in that: between described change and hydraulic turbine main shaft, be provided with rubber strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320447546.2U CN203430687U (en) | 2013-07-25 | 2013-07-25 | Sealing device of water turbine main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320447546.2U CN203430687U (en) | 2013-07-25 | 2013-07-25 | Sealing device of water turbine main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203430687U true CN203430687U (en) | 2014-02-12 |
Family
ID=50059731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320447546.2U Expired - Fee Related CN203430687U (en) | 2013-07-25 | 2013-07-25 | Sealing device of water turbine main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203430687U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925364A (en) * | 2014-05-12 | 2014-07-16 | 武汉大学 | Sealing ring of water turbine spindle and manufacturing method of sealing ring |
-
2013
- 2013-07-25 CN CN201320447546.2U patent/CN203430687U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925364A (en) * | 2014-05-12 | 2014-07-16 | 武汉大学 | Sealing ring of water turbine spindle and manufacturing method of sealing ring |
| CN103925364B (en) * | 2014-05-12 | 2016-03-30 | 武汉大学 | Seal ring of a kind of hydraulic turbine main shaft and preparation method thereof |
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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 |
Granted publication date: 20140212 Termination date: 20140725 |
|
| EXPY | Termination of patent right or utility model |