CN202927051U - Sealing and waterproof structure for water turbine spindle - Google Patents
Sealing and waterproof structure for water turbine spindle Download PDFInfo
- Publication number
- CN202927051U CN202927051U CN2012206365299U CN201220636529U CN202927051U CN 202927051 U CN202927051 U CN 202927051U CN 2012206365299 U CN2012206365299 U CN 2012206365299U CN 201220636529 U CN201220636529 U CN 201220636529U CN 202927051 U CN202927051 U CN 202927051U
- Authority
- CN
- China
- Prior art keywords
- water turbine
- sealing
- rotation
- rotator
- circumferential wall
- 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
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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 sealing and waterproof structure for a water turbine spindle, which comprises a rotator mounted on the spindle, a gap exists between the outer circumferential wall of the rotator and the inner circumferential wall of a stator of a water turbine, and a plurality of sealing and waterproof blades are welded at intervals on the outer circumferential wall of the rotator, and are inclined in the same direction as the rotator rotates. Under the premise of not affecting the energy loss of the water turbine, the sealing and waterproof structure utilizes the force equilibrium principle to realize sealing and water proofing, i.e., in the process of the operation of the water turbine, the water which is thrown out from between the outer circumferential wall of the rotator and the inner circumferential wall of the stator by the centrifugal force of rotation can be blocked back by the centripetal force generated by the sealing and waterproof blades on the rotator of the spindle, consequently, the water cannot be thrown out from between the outer circumferential wall of the rotator and the inner circumferential wall of the stator, a good sealing and waterproof effect is achieved, the overhaul period of the water turbine is effectively prolonged, so that the water turbine can normally operate as long as possible, and thereby the operation cost of the water turbine is reduced.
Description
Technical field
The utility model relates to water turbine, specifically a kind of hydraulic turbine main shaft sealing water sealing structure.
Background technique
The core component of water turbine is the solid of rotation (comprising crown, runner etc.) that is assemblied on main shaft, and the Main Function of these solid of rotation is to change energy of the impinging jet into rotating mechanical energy, thereby drives the generator generating.Aforesaid solid of rotation is in the fixed body (comprising top cover etc.) that is assemblied in water turbine, by fixed body, it is protected, and has the gap between the periphery wall of solid of rotation and the inner circle wall of fixed body, so that solid of rotation can rotate freely.Water turbine is when operation, current can throw away in the gap between solid of rotation periphery wall and fixed body inner circle wall, and then pollution factory building, for this reason, traditional method is the sealing gasket that rubber or nylon material are set on hydraulic turbine main shaft, hides gap between solid of rotation periphery wall and fixed body inner circle wall by sealing gasket.But; owing to usually containing the materials (particularly the water quality of fully-loaded stream is more common) such as silt in current; in the running of water turbine; the materials such as silt contained in current can form wearing and tearing to the sealing gasket on main shaft; and then the sealing configuration of destruction main shaft, producing serious water leakage phenomenon, can only be overhauled by forced-stopping machine; the normal operation that this has had a strong impact on water turbine has increased the operating cost of water turbine.
Summary of the invention
The purpose of this utility model is: for above-mentioned the deficiencies in the prior art, under the prerequisite that does not affect the water turbine energy loss, provide a kind of simple in structure, good sealing effect, strong, the reliable and practical hydraulic turbine main shaft sealing water sealing structure of sealing.
The technical solution adopted in the utility model is: a kind of hydraulic turbine main shaft sealing water sealing structure, comprise the solid of rotation that assembles on main shaft, has the gap between the fixed body inner circle wall of the periphery wall of described solid of rotation and water turbine, on the periphery wall of described solid of rotation, the interval is welded with a plurality of hermetic seal blades, these hermetic seal blade leans layouts, true dip direction is consistent with the sense of rotation of solid of rotation.
The line stretcher of the line stretcher of described hermetic seal blade and solid of rotation axis forms the angle of 10~35 °.
the beneficial effects of the utility model are: above-mentioned hermetic seal structure is under the prerequisite that does not affect the water turbine energy loss, utilize force balance principle to realize sealing, sealing, be that water turbine is in running, centripetal force by the formation of the hermetic seal blade on the main shaft solid of rotation, to go back from the current gear that throws away between solid of rotation periphery wall and fixed body inner circle wall because of rotary centrifugal force, thereby guarantee that current can not throw away between solid of rotation periphery wall and fixed body inner circle wall, realized good sealing, stagnant water effect, effectively extend the repair cycle of water turbine, water turbine can normally be moved as far as possible for a long time, reduce the operating cost of water turbine.
Description of drawings
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is a kind of structural representation of the present utility model.
Code name implication in figure: 1-solid of rotation; 2-main shaft; 3-fixed body; 4-hermetic seal blade; 5-gap.
Embodiment
Referring to Fig. 1: the utility model comprises the solid of rotation 1 of assembling on main shaft 2, and this solid of rotation 1 includes but not limited to crown, runner, has gap 5 between the periphery wall of solid of rotation 1 and the fixed body of water turbine 3 inner circle walls, and aforementioned fixed body 3 includes but not limited to top cover.on the periphery wall of solid of rotation 1, the interval is welded with a plurality of hermetic seal blades 4, these hermetic seal blades 4 are in tilted layout, concrete angle of inclination is, the line stretcher of the line stretcher of hermetic seal blade 4 and solid of rotation 1 axis forms angle (15 ° of angles for example of 10~35 °, or 26 ° of angles, also or 33 ° of angles etc.), true dip direction should be consistent with the sense of rotation of solid of rotation 1, like this could be when solid of rotation 1 rotates with main shaft 2, hermetic seal blade 4 forms centripetal force on solid of rotation 1, make between the fixed body 3 of hermetic seal blade 4 on solid of rotation 1 and water turbine with this and form the non-contact type sealing.
Above-mentioned hermetic seal blade 4 adopts stainless steel material to be made, and magnitude setting, spacing, length value and the row of hermetic seal blade on solid of rotation 1 can specifically be determined according to design parameter and the project organization of water turbine.
Claims (2)
1. hydraulic turbine main shaft sealing water sealing structure, the solid of rotation (1) that comprises the upper assembling of main shaft (2), has gap (5) between fixed body (3) inner circle wall of the periphery wall of described solid of rotation (1) and water turbine, it is characterized in that: on the periphery wall of described solid of rotation (1), the interval is welded with a plurality of hermetic seal blades (4), these hermetic seal blades (4) are in tilted layout, and true dip direction is consistent with the sense of rotation of solid of rotation (1).
2. hydraulic turbine main shaft sealing water sealing structure according to claim 1, it is characterized in that: the line stretcher of the line stretcher of described hermetic seal blade (4) and solid of rotation (1) axis forms the angle of 10~35 °.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2012206365299U CN202927051U (en) | 2012-11-28 | 2012-11-28 | Sealing and waterproof structure for water turbine spindle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2012206365299U CN202927051U (en) | 2012-11-28 | 2012-11-28 | Sealing and waterproof structure for water turbine spindle |
Publications (1)
Publication Number | Publication Date |
---|---|
CN202927051U true CN202927051U (en) | 2013-05-08 |
Family
ID=48217012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2012206365299U Expired - Fee Related CN202927051U (en) | 2012-11-28 | 2012-11-28 | Sealing and waterproof structure for water turbine spindle |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN202927051U (en) |
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2012
- 2012-11-28 CN CN2012206365299U patent/CN202927051U/en not_active Expired - Fee Related
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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: 20130508 Termination date: 20191128 |