CN203703125U - Water turbine main shaft device with sealing structure - Google Patents
Water turbine main shaft device with sealing structure Download PDFInfo
- Publication number
- CN203703125U CN203703125U CN201320858237.4U CN201320858237U CN203703125U CN 203703125 U CN203703125 U CN 203703125U CN 201320858237 U CN201320858237 U CN 201320858237U CN 203703125 U CN203703125 U CN 203703125U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- sealing
- water
- water turbine
- turbine main
- 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
- Hydraulic Turbines (AREA)
- Sealing Devices (AREA)
Abstract
The utility model relates to a water turbine main shaft device with a sealing structure. The water turbine main shaft device comprises a water sealing cover, a main shaft sealing sleeve, a gland and a drain pipe, and is characterized in that the main shaft sealing sleeve sleeves a main shaft, the water sealing cover is fixed on a water turbine main body and sleeves the main shaft sealing sleeve, the lower end of the water sealing cover is provided with the drain pipe, a stepped labyrinth structure is adopted between the main shaft sealing sleeve and the water sealing cover for sealing, two to three streams of asbestos packing are arranged between the main shaft sealing sleeve and the water sealing cover, an O-shaped sealing ring is arranged in the stepped labyrinth structure, and is made of high-strength and high-wear-resistance polyether polyurethane materials, and the main shaft is a hollow shaft. The water turbine main shaft device has the beneficial effect that the water turbine main shaft device has the advantages of simple structure, good sealing performance, long service life and wide application range.
Description
Technical field
The utility model relates to a kind of hydraulic turbine main shaft device with sealing configuration.
Background technique
At present, the main shaft seal of water turbine mainly contains following several mode: 1, packing main shaft ground rice; 2, piston type main shaft seal; 3, flat main shaft seal; 4, radial seal; Fast due to the compact structure of equipment own, running speed, often cause that water turbine seriously leaks at sealing seat place, directly have influence on the safe and stable operation of water turbine, and mechanical loss is large, has shortened working life.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and provide a kind of simple in structure, cost is low, mechanical loss is little, can improve water turbine working life, there is the hydraulic turbine main shaft device with sealing configuration of good sealing property.
The purpose of this utility model completes by following technical solution, it comprises water seal cover, spindle seal kit, gland, waste pipe, it is characterized in that: described spindle seal kit is sleeved on main shaft, described water seal cover is fixed on water turbine main body and is sleeved on described main shaft seal and puts, the lower end of described water seal cover is provided with waste pipe, adopts the sealing of cascade labyrinth structure between described spindle seal kit and described water seal cover; Between described spindle seal kit and described water seal cover, be provided with Liang Zhi tri-road asbestos packings; Described main shaft is hollow shaft.
As preferably, in described cascade labyrinth structure, be provided with O RunddichtringO; The material of described O RunddichtringO is the polyethers polyurethane material of high strength and high abrasion.
The beneficial effects of the utility model are: have simple in structure, good airproof performance, long service life, feature applied widely.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram of cascade labyrinth structure of the present utility model.
Label in accompanying drawing is respectively: 1, water seal cover; 2, spindle seal kit; 3, gland; 4, waste pipe; 5, cascade labyrinth structure; 6, asbestos packing; 7, O RunddichtringO; 8, main shaft.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done to detailed introduction: as shown in accompanying drawing 1,2, the utility model comprises water seal cover 1, spindle seal kit 2, gland 3, waste pipe 4, described spindle seal kit 2 is sleeved on main shaft 8, described water seal cover 1 is fixed on water turbine main body and is sleeved on described spindle seal kit 2, the lower end of described water seal cover 1 is provided with waste pipe 4, between described spindle seal kit 2 and described water seal cover 1, adopt cascade labyrinth structure 5 to seal, when there is can increase when current are revealed the leakage path of current, reduce as far as possible the amount of leakage of current.Between described spindle seal kit 2 and described water seal cover 1, be provided with Liang Zhi tri-road asbestos packings 6 and increase sealingly secure.
In described cascade labyrinth structure 5, be provided with O RunddichtringO 7, can increase the frictional force that current leakage path and current are revealed, thereby ensure sealing; The material of described O RunddichtringO 7 is the polyethers polyurethane material of high strength and high abrasion, has the advantages that hardness is high, friction factor is little.
Described main shaft 8 is hollow shaft, utilizes hollow spindle self buoyancy, has reduced the frictional force of spindle seal kit 2 with main shaft 8, effectively raises working efficiency.Described spindle seal kit 2 adopts stainless steel material to make, and solved the problem of sealing surface corrosion, reaches 3-5 the working life that can extend seal arrangement.
The utility model is not limited to above-mentioned mode of execution; no matter do any variation in its shape or material formation; every employing structural design provided by the utility model, is all a kind of distortion of the present utility model, all should think within the utility model protection domain.
Claims (2)
1. one kind has the hydraulic turbine main shaft device of sealing configuration, comprise water seal cover (1), spindle seal kit (2), gland (3), waste pipe (4), it is characterized in that: described spindle seal kit (2) is sleeved on main shaft (8), described water seal cover (1) is fixed on water turbine main body and is sleeved on described spindle seal kit (2), the lower end of described water seal cover (1) is provided with waste pipe (4), adopts cascade labyrinth structure (5) sealing between described spindle seal kit (2) and described water seal cover (1); Between described spindle seal kit (2) and described water seal cover (1), be provided with Liang Zhi tri-road asbestos packings (6); Described main shaft (8) is hollow shaft.
2. the hydraulic turbine main shaft device with sealing configuration according to claim 1, is characterized in that: in described cascade labyrinth structure (5), be provided with O RunddichtringO (7); The material of described O RunddichtringO (7) is the polyethers polyurethane material of high strength and high abrasion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858237.4U CN203703125U (en) | 2013-12-18 | 2013-12-18 | Water turbine main shaft device with sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858237.4U CN203703125U (en) | 2013-12-18 | 2013-12-18 | Water turbine main shaft device with sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203703125U true CN203703125U (en) | 2014-07-09 |
Family
ID=51053570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320858237.4U Expired - Fee Related CN203703125U (en) | 2013-12-18 | 2013-12-18 | Water turbine main shaft device with sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203703125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113752457A (en) * | 2021-08-18 | 2021-12-07 | 武汉理工大学 | A kind of thermoplastic plastic thermoforming mould and its mould-taking method |
-
2013
- 2013-12-18 CN CN201320858237.4U patent/CN203703125U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113752457A (en) * | 2021-08-18 | 2021-12-07 | 武汉理工大学 | A kind of thermoplastic plastic thermoforming mould and its mould-taking method |
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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: 20140709 Termination date: 20151218 |
|
| EXPY | Termination of patent right or utility model |