CN205225565U - Modular contactless hydraulic turbine shaft seal device - Google Patents
Modular contactless hydraulic turbine shaft seal device Download PDFInfo
- Publication number
- CN205225565U CN205225565U CN201520906146.2U CN201520906146U CN205225565U CN 205225565 U CN205225565 U CN 205225565U CN 201520906146 U CN201520906146 U CN 201520906146U CN 205225565 U CN205225565 U CN 205225565U
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- China
- Prior art keywords
- main shaft
- seal
- hydraulic turbine
- runner
- utility
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- Expired - Fee Related
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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 discloses a modular contactless hydraulic turbine shaft seal device, its characterized in that: this modular contactless hydraulic turbine shaft seal device includes main shaft, rotary seal axle sleeve, fixed seal seat, top cap pressure relief device, the rubber seal of heart type, pump board device, seven parts of runner, the rotary seal axle sleeve is for dividing half to close and fix on the main shaft, and the rubber seal of heart type relies on the clamp plate to compress tightly in the fixed seal seat, the pump board device for the bolt handle close on the runner. The utility model has the advantage of simple and novel structure, installation convenient to use, energy -conservation, environmental protection, work efficiency are high, safe, non -maintaining, and the saving running cost is hydraulic turbine shaft seal's a big innovation, has good economic nature.
Description
Technical field
The utility model relates to the contactless hydraulic turbine main shaft sealing device of a kind of combined type, is specifically the contactless main shaft sealing device of a kind of water turbine combined type.
Background technique
For a long time, a lot of mixed-flow water power plant is high head high concentration of sediment mixed-flow water power plant particularly, because of sediment charge or the much higher hard in river, often causes hydraulic turbine main shaft sealing to lose efficacy rapidly because sharply wearing and tearing.On the one hand because hydraulic turbine main shaft sealing serious wear causes water leakage to increase, water can be wasted; On the other hand because of hydraulic turbine main shaft sealing serious wear, occur leaking and flood the phenomenon of turbine guide bearing, the severe safety accident of water logging factory building even occurs time serious.Due to main shaft seal leak serious after the direct safe and stable operation to turbine-generator units is brought threat, add accident potential, maintenance workload increases, and frequent shutdown is safeguarded will with the huge economic loss of caller station.For improving the safety and reliability of turbine-generator units, meeting water power plant safe operation requirement, the water leakage of main shaft seal must be guaranteed in the reasonable scope.Therefore need to optimize further hydraulic turbine main shaft sealing, reduce water leakage, increase reliability, guarantee to meet the usage requirement that the long-time normal safe in water power plant runs.
Model utility content
The purpose of this utility model be to overcome the main shaft seal water leakage that existing most of franc turbine particularly high head high concentration of sediment franc turbine exists large, lost efficacy fast, working life is short, a difficult problem for frequent shutdown Maintenance and Repair; there is provided a kind of combined type contactless hydraulic turbine main shaft sealing device; to realize in design the conservative control of runner water leakage, substantially reduce main shaft seal water leakage; guarantee the reliability of main shaft seal water shutoff; guarantee realizes unit normal safe and runs, the final safety and reliability improving turbine-generator units.
The utility model is based on the operative practice of existing turbine-generator units, by analyzing existing main shaft-sealing structure for hydroturbines and optimizing and be verified in real machine test, the contactless hydraulic turbine main shaft sealing device of a kind of combined type that final optimization pass is designed, first reduce pressure the design philosophy sealed afterwards, by sealing water shutoff by mazy type non-contact type again after the decompression of pump panel assembly.This apparatus structure is simple, safe, non-maintaining, reliability is high, saves operating cost.
The utility model realizes like this, construct the contactless hydraulic turbine main shaft sealing device of a kind of combined type, it is characterized in that: the contactless hydraulic turbine main shaft sealing device of this combined type comprises main shaft, rotary seal axle sleeve, fixing seal seat, top cover pressure relief device, cardioid rubber seal, pump panel assembly, runner seven part; Rotary seal axle sleeve is fixed on conjunction on main shaft for dividing half, and cardioid rubber seal relies on pressing plate to be pressed in fixing seal seat, and pump panel assembly bolt puts together on runner.
Superiority of the present utility model is: by improving and optimizating, there is provided a kind of combined type contactless hydraulic turbine main shaft sealing device at this, it is large that this model utility overcomes the main shaft seal water leakage that most of franc turbine particularly high head high concentration of sediment franc turbine exists, lost efficacy fast, working life is short, a difficult problem for frequent shutdown Maintenance and Repair, there is provided a kind of combined type contactless hydraulic turbine main shaft sealing device, realize the conservative control to runner water leakage in design, substantially reduce main shaft seal water leakage, guarantee the reliability of main shaft seal water shutoff, guarantee realizes unit normal safe and runs, the safety and reliability of final raising turbine-generator units.
The contactless hydraulic turbine main shaft sealing device of a kind of combined type described in the utility model, design principle is advanced, and structure is simple, connection and reasonable arrangement, and reliability is high, and operating cost is cheap, achieves hydraulic turbine main shaft sealing high reliability.This model utility reliability is high, and Security is good, and energy-saving effect and remarkable in economical benefits achieve the maximum using of water energy clean energy resource, great popularization.
Accompanying drawing explanation
The contactless hydraulic turbine main shaft sealing device schematic diagram of Fig. 1 combined type.
Embodiment
Be described in detail below in conjunction with accompanying drawing 1 pair of the utility model, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The purpose of this utility model be to overcome the main shaft seal water leakage that most of franc turbine particularly high head high concentration of sediment franc turbine exists large, lost efficacy fast, working life is short, a difficult problem for frequent shutdown Maintenance and Repair; there is provided a kind of combined type contactless hydraulic turbine main shaft sealing device; to realize in design the conservative control of runner water leakage, substantially reduce main shaft seal water leakage; guarantee the reliability of main shaft seal water shutoff; guarantee realizes unit normal safe and runs, the final safety and reliability improving turbine-generator units.
The contactless hydraulic turbine main shaft sealing device of a kind of combined type described in the utility model, as shown in Figure 1, can be implemented in the following manner; The contactless hydraulic turbine main shaft sealing device of this combined type comprises main shaft 1, rotary seal axle sleeve 2, fixing seal seat 3, top cover pressure relief device 4, cardioid rubber seal 5, pump panel assembly 6, runner 7 seven part; Rotary seal axle sleeve 2 is fixed on conjunction on main shaft 1 for dividing half, and cardioid rubber seal 5 relies on pressing plate to be pressed on fixing seal seat 3 li, and pump panel assembly 6 bolt puts together on runner 7.
First, during hydraulic turbine operation, runner leaks and enters into pressure chamber between runner 7 crown and top cover by gap and meet with the pump panel assembly 6 put together on runner at runner crown place.Pump panel assembly 6 by main shaft rotate obtain lift, will leak and be driven in top cover pressure relief device 4 and send draft tube to through its waste pipe, to reach the object alleviating water pressure before main shaft seal, namely realize decompression function.
Secondly; in the process of unit starting or shutdown, when generating unit speed is lower than rated speed during normal operation, leaking arrives part in rotary seal axle sleeve 2, fixing seal seat 3 place; leak and will be reduced pressure by labyrinth seal, finally arrive drain chamber and be discharged into sump or tail water.
Finally; after dead halt; cardioid rubber seal 5 drops into as the maintenance sealing after compressor emergency shutdown; pressurized air passes into the behind of cardioid rubber seal 5; thus hold main shaft 1 tightly rear water shutoff after cardioid rubber seal 5 being swollen; like this when the tailwater level in power station is higher than units' installation elevation, tail water can be avoided to pour in down a chimney and to flood factory building.
The utility model is by improving and optimizating, there is provided a kind of combined type contactless hydraulic turbine main shaft sealing device at this, design principle is advanced, structure is simple, connection and reasonable arrangement, operating cost is cheap, to realize in design the conservative control of runner water leakage, substantially reduces main shaft seal water leakage, guarantee the reliability of main shaft seal water shutoff.This model utility reliability is high, and Security is good, and energy-saving effect and remarkable in economical benefits achieve the maximum using of water energy clean energy resource, great popularization.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (1)
1. the contactless hydraulic turbine main shaft sealing device of combined type, is characterized in that: the contactless hydraulic turbine main shaft sealing device of this combined type comprises main shaft (1), rotary seal axle sleeve (2), fixing seal seat (3), top cover pressure relief device (4), cardioid rubber seal (5), pump panel assembly (6), runner (7) seven part; Rotary seal axle sleeve (2) is fixed on conjunction on main shaft (1) for dividing half, and it is inner that cardioid rubber seal (5) relies on pressing plate to be pressed on fixing seal seat (3), and pump panel assembly (6) bolt puts together on runner (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520906146.2U CN205225565U (en) | 2015-11-16 | 2015-11-16 | Modular contactless hydraulic turbine shaft seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520906146.2U CN205225565U (en) | 2015-11-16 | 2015-11-16 | Modular contactless hydraulic turbine shaft seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205225565U true CN205225565U (en) | 2016-05-11 |
Family
ID=55900634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520906146.2U Expired - Fee Related CN205225565U (en) | 2015-11-16 | 2015-11-16 | Modular contactless hydraulic turbine shaft seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205225565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700587A (en) * | 2021-08-23 | 2021-11-26 | 湖南云箭集团有限公司 | Detachable pump plate structure of water turbine runner |
-
2015
- 2015-11-16 CN CN201520906146.2U patent/CN205225565U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113700587A (en) * | 2021-08-23 | 2021-11-26 | 湖南云箭集团有限公司 | Detachable pump plate structure of water turbine runner |
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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: 20160511 Termination date: 20181116 |