CN205001110U - Be applied to nothing wearing and tearing seal assembly of hydraulic turbine - Google Patents
Be applied to nothing wearing and tearing seal assembly of hydraulic turbine Download PDFInfo
- Publication number
- CN205001110U CN205001110U CN201520725425.9U CN201520725425U CN205001110U CN 205001110 U CN205001110 U CN 205001110U CN 201520725425 U CN201520725425 U CN 201520725425U CN 205001110 U CN205001110 U CN 205001110U
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- Prior art keywords
- water turbine
- axis
- top cover
- runner
- macro
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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 relates to a seal assembly especially relates to a be applied to nothing wearing and tearing seal assembly of hydraulic turbine. Including hydraulic turbine macroaxis, the bottom of water wheels axle macroaxis be fixed with the runner, the upper portion of runner be equipped with the centrifugal pump blade. Be applied to nothing wearing and tearing seal assembly of hydraulic turbine, compact structure improves performance, and the reliability is high.
Description
Technical field
The utility model relates to a kind of black box, particularly relate to a kind of be applied to water turbine without abradable seal assembly.
Background technique
Water power plant turbine-generator units often destroys because of the sealing wear of water turbine, leaks serious, and affects the safe operation of unit.The main shaft seal of current water turbine is mostly mechanical contact sealing, and as radial packing sealing, water lubrication plane sealing etc., have plenty of contactless labyrinth seal, or contact and contactless combination seal.No matter be that sealing, as long as there is Sealing just to there are wearing and tearing.
During operation because of water turbine, main shaft ferry-boat is comparatively large, and the speed of general sealing part abrasion is very fast.So usually because the wearing and tearing of Sealing cause increase of leaking, affect the safe operation of water turbine and have to shut down replacing Sealing.
Chinese patent 201110332081.1, a kind of water turbine maintenance seal arrangement is disclosed, feature is, adopt the maintenance seal form of swallow-tail form, this kind of maintenance sealing directly forms with rubber compacting, middle without cavity, by in groove specific in Stamping Steel Ribbon indentation sealing seat, be provided with sealing gland above, with bolt, sealing gland be fixed on sealing seat, sealing seat also has the seal groove preventing from leaking gas, groove is built with rubber strip, prevent gas from exposing, like this, make sealing gland, maintenance sealing become to be integrated with sealing seat.This structure relative complex, and using effect is relatively undesirable, and processing cost is larger.
Summary of the invention
The utility model mainly solves the deficiencies in the prior art, provides a kind of compact structure, what usability was outstanding be applied to water turbine without abradable seal assembly.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of be applied to water turbine without abradable seal assembly, comprise water turbine macro-axis, the bottom of described water wheel axle macro-axis is fixed with runner, the top of described runner is provided with centrifugal blade, described water turbine macro-axis and runner overcoat have top cover, water turbine fixed component is provided with in described top cover, the top of described top cover is provided with the waste pipe be connected with top cover, described top cover is sealed by air shroud mutually with the large between centers of water turbine, negative pressuren zone is formed between the bottom of described water turbine macro-axis and runner, the oblique drainage channel be connected with negative pressuren zone is provided with in described water turbine macro-axis, the collar aperture of leaking be connected with top cover is provided with in described runner.
As preferably, fixed between described water turbine macro-axis and top cover by bolt, described collar aperture of leaking is straight hole.
Non-abrasion hard-sealing is novel sealing configuration, utilizes the speed of rotary wheel of water turbine own rotation, when hydraulic turbine operation, leaking of sealing can be taken away in the other direction.Non-abrasion hard-sealing device can need not be changed for a long time, and structure is simple, easy to maintenance, without leaking during normal operation.At the pump-unit at the rotary wheel of water turbine back side, need to consume certain energy, negligible compared with the rated power of turbine-generator units.And greatly can improve the unit safety operation time without abrasion sealing device, reduce sealing Maintenance and Repair expense, improve the generated energy of unit, there is very high economic value.
The utility model provide be applied to water turbine without abradable seal assembly, compact structure, improve usability, reliability is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as shown in Figure 1, a kind of be applied to water turbine without abradable seal assembly, comprise water turbine macro-axis 1, the bottom of described water wheel axle macro-axis 1 is fixed with runner 2, the top of described runner 2 is provided with centrifugal blade 3, described water turbine macro-axis 1 has top cover 4 with runner 2 overcoat, water turbine fixed component 5 is provided with in described top cover 4, the top of described top cover 4 is provided with the waste pipe 6 be connected with top cover 4, sealed by air shroud 7 phase between described top cover 4 with water turbine macro-axis 1, negative pressuren zone 8 is formed between the bottom of described water turbine macro-axis 1 and runner 2, be provided with in described water turbine macro-axis 1 and the negative pressuren zone 8 oblique drainage channels 9 be communicated with mutually, the collar aperture 10 of leaking be connected with top cover 4 is provided with in described runner 2.
Fixed by bolt 11 between described water turbine macro-axis 1 and top cover 4, described collar aperture 10 of leaking is for straight hole.
Claims (2)
1. one kind be applied to water turbine without abradable seal assembly, it is characterized in that: comprise water turbine macro-axis (1), the bottom of described water wheel axle macro-axis (1) is fixed with runner (2), the top of described runner (2) is provided with centrifugal blade (3), described water turbine macro-axis (1) and runner (2) overcoat have top cover (4), water turbine fixed component (5) is provided with in described top cover (4), the top of described top cover (4) is provided with the waste pipe (6) be connected with top cover (4), sealed mutually by air shroud (7) between described top cover (4) with water turbine macro-axis (1), negative pressuren zone (8) is formed between the bottom of described water turbine macro-axis (1) and runner (2), the oblique drainage channel (9) be connected with negative pressuren zone (8) is provided with in described water turbine macro-axis (1), the collar aperture of leaking (10) be connected with top cover (4) is provided with in described runner (2).
2. according to claim 1 be applied to water turbine without abradable seal assembly, it is characterized in that: fixed by bolt (11) between described water turbine macro-axis (1) and top cover (4), described collar aperture of leaking (10) is straight hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520725425.9U CN205001110U (en) | 2015-09-18 | 2015-09-18 | Be applied to nothing wearing and tearing seal assembly of hydraulic turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520725425.9U CN205001110U (en) | 2015-09-18 | 2015-09-18 | Be applied to nothing wearing and tearing seal assembly of hydraulic turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205001110U true CN205001110U (en) | 2016-01-27 |
Family
ID=55158002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520725425.9U Active CN205001110U (en) | 2015-09-18 | 2015-09-18 | Be applied to nothing wearing and tearing seal assembly of hydraulic turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205001110U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111051688A (en) * | 2017-08-14 | 2020-04-21 | 福伊特专利有限公司 | Hydraulic machine comprising radial runner |
| 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
- 2015-09-18 CN CN201520725425.9U patent/CN205001110U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111051688A (en) * | 2017-08-14 | 2020-04-21 | 福伊特专利有限公司 | Hydraulic machine comprising radial runner |
| 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 |