CN204212901U - A kind of water turbine with sand discharge structure - Google Patents
A kind of water turbine with sand discharge structure Download PDFInfo
- Publication number
- CN204212901U CN204212901U CN201420584098.5U CN201420584098U CN204212901U CN 204212901 U CN204212901 U CN 204212901U CN 201420584098 U CN201420584098 U CN 201420584098U CN 204212901 U CN204212901 U CN 204212901U
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- China
- Prior art keywords
- sand
- spiral case
- draft tube
- pipe
- sand discharge
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- 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.)
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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 kind of water turbine with sand discharge structure, comprise spiral case, seat ring, runner, draft tube and sand discharge structure, described spiral case lower weld has draft tube, is provided with seat ring in spiral case, seat ring inside is provided with stator, is provided with runner in described draft tube; Described draft tube comprises the Taper Pipe, ell and the extension tube that connect successively, and extension tube outlet end is bent upwards and is provided with top cover, and top cover is provided with flexible rod, is provided with flow transducer, flexible rod is provided with displacement transducer in described top cover; Described sand discharge structure comprises the sand well be arranged on below spiral case, and the upper end of sand well is connected with bottom the nose of spiral case by sand pipe, and the upper end of sand well is also connected with Taper Pipe by aqueduct, and the bottom of sand well is connected with ell by sand discharge pipe; The silt of spiral case nose can be discharged by the utility model, reduces the wearing and tearing of silt to runner and spiral case; Can effectively prevent draft tube from cavitation erosion or blocking phenomenon occurring, service life of equipment is long.
Description
Technical field
The utility model relates to a kind of water turbine, specifically a kind of water turbine with sand discharge structure.
Background technique
Domestic a lot of continental river containing quantity of sand and mud larger, in flood season, the content of silt is very high, after setting pot, still have major part to enter hydroturbine water intake runner, under the centrifugal action that the spiral case of hydraulic turbine generator produces, silt has part to enter runner with current from stator mechanism, finally enter downstream from draft tube, some silt can collect at the nose of spiral case, cause spiral case nose place sediment charge higher, wearing and tearing are caused to runner and spiral case, unbalance stress when runner can be caused time serious to operate, cause the phenomenon of the irregular vibration of unit, affect the normal work and use life-span of unit, existing turbine draft tube extension tube is longer, the extension tube of draft tube is horizontally disposed with and distal opening, when current are less or dry season time, extension tube end is easily exposed outside the water surface, air or foreign material etc. enter draft tube, make draft tube, runner or stator etc. cavitation erosion occur and damage, or foreign matters from being blocked draft tube, cause current not smooth, therefore in the urgent need to improving to solve the problem to the water turbine of prior art.
Model utility content
The purpose of this utility model is to provide a kind of spiral case part effectively sand discharge, draft tube not easily to occur to cavitate or blocking phenomenon, structure are simple, the water turbine with sand discharge structure of long service life, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technological scheme:
A kind of water turbine with sand discharge structure, comprise spiral case, seat ring, runner, draft tube and sand discharge structure, described spiral case lower weld has draft tube, in spiral case, seat ring is installed, seat ring inside is provided with stator, be provided with runner in draft tube, the center of described spiral case, seat ring, runner and draft tube is on same vertical axis; Described draft tube comprises the Taper Pipe, ell and the extension tube that connect successively, the outlet end of extension tube is bent upwards and is provided with top cover, the top of top cover is connected with flexible rod, flexible rod is fixed by support, flow transducer is provided with inside described top cover, flexible rod is provided with displacement transducer, is provided with controller in support, described top cover is flexibly connected with extension tube outlet end; Described sand discharge structure comprises the sand well be arranged on below spiral case, the upper end of sand well is connected with bottom the nose of spiral case by sand pipe, sand pipe is provided with the first valve, the upper end of sand well is also connected with Taper Pipe by aqueduct, aqueduct is provided with the second valve, the bottom of sand well is connected with ell by sand discharge pipe, and sand discharge pipe is provided with the 3rd valve.
As further program of the utility model: the bottom of described sand well is funnel-like, the upper end of described sand pipe is funnel-like.
As the utility model further scheme: described first valve, the second valve and the 3rd valve are electric valve.
As the utility model further scheme: the height of the connection part of described aqueduct and Taper Pipe, higher than the height at sand well top; The height of the connection part of described sand discharge pipe and ell, lower than the height of sand bottom.
Compared with prior art, the beneficial effects of the utility model are: the silt being collected spiral case nose in the utility model by sand well, the current utilizing draft tube during sand discharge almost discharge the silt in sand well completely, due to the first valve closing, so current during sand discharge in spiral case are unaffected, therefore both reduced the wearing and tearing of silt to runner and spiral case, had easy to use, the simple feature of structure simultaneously; The extension tube water intake height of draft tube is lower than water outlet, can effectively prevent air from entering draft tube, and cavitation phenomenon occurs, in addition, flow transducer can measure the water velocity from extension tube outlet end, when flow velocity is lower than setting value or non-water flow, flexible rod extends, and is pushed and the outlet end of shutoff extension tube by top cover, thus stop the evaporation of draft tube internal cause moisture, water level lower than the horizontal level of extension tube, and cavitates, and simultaneously also prevents foreign matter from entering draft tube and the blocking that occurs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is plan view of the present utility model.
Embodiment
Be described in more detail below in conjunction with the technological scheme of embodiment to this patent.
Refer to Fig. 1-2, a kind of water turbine with sand discharge structure, comprise spiral case 1, seat ring 2, runner 3, draft tube 4 and sand discharge structure 5, described spiral case 1 lower weld has draft tube 4, seat ring 2 is installed in spiral case 1, seat ring 2 inside is provided with stator 6, is provided with runner 3 in draft tube 4, and the center of described spiral case 1, seat ring 2, runner 3 and draft tube 4 is on same vertical axis, described draft tube 4 comprises the Taper Pipe 7, ell 8 and the extension tube 9 that connect successively, the outlet end of extension tube 9 is bent upwards and is provided with top cover 10, the top of top cover 10 is connected with flexible rod 11, flexible rod 11 is fixed by support 12, flow transducer 13 is provided with inside described top cover 10, flexible rod 11 is provided with displacement transducer 14, is provided with controller 15 in support 12, described top cover 10 is flexibly connected with extension tube 9 outlet end, described sand discharge structure 5 comprises the sand well 16 be arranged on below spiral case 1, the upper end of sand well 16 is connected with bottom the nose 18 of spiral case 1 by sand pipe 17, the bottom of described sand well 16 is funnel-like, the upper end of described sand pipe 17 is funnel-like, sand pipe 17 is provided with the first valve 19, the upper end of sand well 16 is also connected with Taper Pipe 7 by aqueduct 20, aqueduct 20 is provided with the second valve 21, the bottom of sand well 16 is connected with ell 8 by sand discharge pipe 22, sand discharge pipe 22 is provided with the 3rd valve 23, described first valve 19, second valve 21 and the 3rd valve 23 are electric valve, the height of the connection part of described aqueduct 20 and Taper Pipe 7, higher than the height at sand well 16 top, the height of the connection part of described sand discharge pipe 22 and ell 8, lower than the height bottom sand well 16.
Working principle of the present utility model is: in the utility model, the silt of spiral case 1 nose 18 enters in sand well 16 by sand pipe 17 precipitation, then the current in draft tube 4 Taper Pipe 7 are utilized to wash away sand well 16 by aqueduct 20, the silt of precipitation flows into the ell 8 of draft tube 4 through sand discharge pipe 22, discharged by extension tube 9, sand discharge is efficiently convenient, ensure that the nose 18 of spiral case 1 by a large amount of sand erosion, can not avoid runner 3 simultaneously and rotate not smooth phenomenon; Flow transducer 13 can measure the water velocity flowed out from extension tube 9 outlet end, when flow velocity is lower than setting value or non-water flow, controller 15 will be fed back signal to, instruction flexible rod 11 extends by controller 15, pushed by top cover 10 and the outlet end of shutoff extension tube 9, thus stop the evaporation of draft tube 4 internal cause moisture, water level is lower than the horizontal level of extension tube 9, and cavitate, simultaneously also prevent foreign matter from entering draft tube and the blocking that occurs.
Above the better embodiment of this patent is explained in detail, but this patent is not limited to above-mentioned mode of execution, in the ken that one skilled in the relevant art possesses, various change can also be made under the prerequisite not departing from this patent aim.
Claims (4)
1. one kind has the water turbine of sand discharge structure, comprise spiral case (1), seat ring (2), runner (3), draft tube (4) and sand discharge structure (5), described spiral case (1) lower weld has draft tube (4), seat ring (2) is installed in spiral case (1), seat ring (2) inside is provided with stator (6), be provided with runner (3) in draft tube (4), the center of described spiral case (1), seat ring (2), runner (3) and draft tube (4) is on same vertical axis; It is characterized in that: described draft tube (4) comprises the Taper Pipe (7), ell (8) and the extension tube (9) that connect successively, the outlet end of extension tube (9) is bent upwards and is provided with top cover (10), the top of top cover (10) is connected with flexible rod (11), flexible rod (11) is fixed by support (12), described top cover (10) inner side is provided with flow transducer (13), flexible rod (11) is provided with displacement transducer (14), be provided with controller (15) in support (12), described top cover (10) is flexibly connected with extension tube (9) outlet end; Described sand discharge structure (5) comprises the sand well (16) being arranged on spiral case (1) below, the upper end of sand well (16) is connected with nose (18) bottom of spiral case (1) by sand pipe (17), sand pipe (17) is provided with the first valve (19), the upper end of sand well (16) is also connected with Taper Pipe (7) by aqueduct (20), aqueduct (20) is provided with the second valve (21), the bottom of sand well (16) is connected with ell (8) by sand discharge pipe (22), and sand discharge pipe (22) is provided with the 3rd valve (23).
2. the water turbine with sand discharge structure according to claim 1, is characterized in that, the bottom of described sand well (16) is funnel-like, and the upper end of described sand pipe (17) is funnel-like.
3. the water turbine with sand discharge structure according to claim 1, is characterized in that, described first valve (19), the second valve (21) and the 3rd valve (23) are electric valve.
4. the water turbine with sand discharge structure according to claim 1, is characterized in that, the height of the connection part of described aqueduct (20) and Taper Pipe (7), higher than the height at sand well (16) top; The height of the connection part of described sand discharge pipe (22) and ell (8), lower than the height of sand well (16) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420584098.5U CN204212901U (en) | 2014-10-10 | 2014-10-10 | A kind of water turbine with sand discharge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420584098.5U CN204212901U (en) | 2014-10-10 | 2014-10-10 | A kind of water turbine with sand discharge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204212901U true CN204212901U (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420584098.5U Expired - Fee Related CN204212901U (en) | 2014-10-10 | 2014-10-10 | A kind of water turbine with sand discharge structure |
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| Country | Link |
|---|---|
| CN (1) | CN204212901U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255609A (en) * | 2020-03-16 | 2020-06-09 | 新疆农业大学 | Channel vortex type power generation and sand discharge device and power generation method |
-
2014
- 2014-10-10 CN CN201420584098.5U patent/CN204212901U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255609A (en) * | 2020-03-16 | 2020-06-09 | 新疆农业大学 | Channel vortex type power generation and sand discharge device and power generation 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: 20150318 Termination date: 20151010 |
|
| EXPY | Termination of patent right or utility model |