CN100465381C - Sand-drainage construction system for diversion channel - Google Patents
Sand-drainage construction system for diversion channel Download PDFInfo
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- CN100465381C CN100465381C CNB2005100219109A CN200510021910A CN100465381C CN 100465381 C CN100465381 C CN 100465381C CN B2005100219109 A CNB2005100219109 A CN B2005100219109A CN 200510021910 A CN200510021910 A CN 200510021910A CN 100465381 C CN100465381 C CN 100465381C
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- sand
- water
- riffler
- diversion
- dike
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- 238000010276 construction Methods 0.000 title claims description 7
- 239000004576 sand Substances 0.000 claims abstract description 54
- 239000002699 waste material Substances 0.000 claims abstract description 12
- 238000009991 scouring Methods 0.000 claims description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000011144 upstream manufacturing Methods 0.000 claims description 17
- 238000005406 washing Methods 0.000 claims description 16
- 238000009795 derivation Methods 0.000 claims description 12
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 abstract 9
- 239000002351 wastewater Substances 0.000 abstract 1
- 239000013049 sediment Substances 0.000 description 6
- 230000008021 deposition Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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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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Abstract
The invention discloses a structural system for excluding sand in diversion canal of hydraulic station, comprising waste water storage dam of draining line, diversion bank, guide bank, right bank, conduit, diversion gate, sand flushing channel, sand flushing gate, waste sand storage weir of draining line, sand slot, cover of sand flushing and cover of sand guiding. Riverway is divided into draining line, sand flushing channel and conduit by diversion and guide banks. There is L-shape sand slot on the one side of the upper of sand guiding and flushing channels, of which one end is started from right bank and parallel to the direction of diversion gate, and the bottom is inclined to deepen from starting end of right bank to left end. Cover of sand guiding is fixed on the sand slot parallel with diversion gate in certain distance. The left end of sand slot ends to the position of diversion bank and gate of sand flushing and is shaped L, of which the bottom is inclined to deepen to gate of sand flushing. Cover of sand flushing is set on the sand slot to gate of sand flushing. The system can exclude sand thoroughly and automatically.
Description
Affiliated technical field
The invention belongs to the sand-removing system in power station, particularly the sediment outflow of channel of approach entrance structure.
Background technology
Common channel of approach entrance, high head hydroelectric power plant is the grittiness crystallizing field all, when the gravel of the folded band of upstream current deposit to a certain amount of after, open the other scouring sluice of channel of approach, the current that flow through scouring sluice are taken advantage of a situation near the gravel of lodgment and are poured the downstream.But this sand surfing method weak effect at the gravel from scouring sluice lodgment far away slightly, because of the impulsive force deficiency, is difficult for being flushed away, and the heavy gravel that stays is still more near the channel of approach.These gravels easily enter channel of approach and arrive the hydraulic turbine, influence the hydraulic turbine life-span.
Summary of the invention
For the gravel that overcomes channel of approach entrance deposition is difficult for getting rid of totally, influence the hydraulic turbine shortcoming in application life, the present invention is provided with riffler in the one side gravel deposition region, upstream of water-drawing gate and scouring sluice.Its technical scheme is: a kind of sand-drainage construction system for diversion channel, form by main stem check dam, Fen Shuidi, diversion dike, right side river levee, derivation conduit, water-drawing gate, sand washing road, scouring sluice, main stem waste sand storage weir, riffler, sand washing cover plate, sand-guiding cover plate.The right side of main stem check dam is connected with dividing the water dike, its left side is connected with the left side river levee, be connected with the main stem waste sand storage weir between the upstream extremity of branch water dike and the right side river levee, constructed the diversion dike between the stage casing of branch water dike and the right side river levee, the diversion dike is parallel with the stage casing of dividing the water dike, between the upstream extremity of diversion dike and the branch water dike scouring sluice is arranged, the downstream of scouring sluice is the sand washing road.Between the upstream extremity of diversion dike and the right side river levee water-drawing gate is arranged, the downstream of water-drawing gate is a derivation conduit.Upstream one side of water-drawing gate and scouring sluice has L shaped riffler, the initial right side of the one end river levee of riffler, and be arranged in parallel with the direction of water-drawing gate, its bottom land tilts to deepen to left end from the initiating terminal of right side river levee gradually, and fixed interval has sand-guiding cover plate above the riffler section that be arranged in parallel with water-drawing gate; The left end of riffler ends at branch water dike and scouring sluice place, forms L shaped riffler, and its bottom land tilt to be deepened to scouring sluice, is fixed with the sand washing cover plate above leading to the riffler section of scouring sluice.
Because the gravel crystallizing field in the water-drawing gate upstream is provided with riffler and the spaced sand-guiding cover plate that tilts, when current process water-drawing gate, gravel wherein is deposited in the riffler.When opening the other scouring sluice of channel of approach, the current that flow through riffler enter downstream river course by scouring sluice with sand setting, have reached the purpose of automatic sediment outflow, and it is few to have guaranteed to enter in the current of the hydraulic turbine sand content, the life-span of having improved the hydraulic turbine.
Description of drawings
The present invention is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is that system schematic of the present invention (has been done omission to the river course, left side among the figure, do not drawn.)
Fig. 2 is the A-A generalized section of Fig. 1.
Fig. 3 is the B-B generalized section of Fig. 1.
Fig. 4 is the C-C generalized section of Fig. 1.
Fig. 5 is the D-D generalized section of Fig. 1.
Fig. 6 is the E-E generalized section of Fig. 1.
In the accompanying drawing: 1, main stem check dam, 2, Fen Shuidi, 3, the diversion dike, 4, right side river levee, 5, derivation conduit, 6, water-drawing gate, 7, scouring sluice, 8, riffler, 9, the sand washing cover plate, 10, sand-guiding cover plate, 11, the main stem waste sand storage weir, 12, the scouring sluice level of tail water, 13, the water-drawing gate level of tail water, 14, the sand setting in the riffler, 15, the main stem sand setting, 16, the sand washing road.
The specific embodiment
As shown in Figure 1, native system is made up of main stem check dam 1, branch water dike 2, diversion dike 3, right side river levee 4, derivation conduit 5, water-drawing gate 6, sand washing road 16, scouring sluice 7, main stem waste sand storage weir 11, riffler 8, sand washing cover plate 9, sand-guiding cover plate 10.The right side of main stem check dam 1 is connected with branch water dike 2, the left side of main stem check dam 1 is connected with the left side river levee, among the figure omission has been done in the river course, left side, does not draw.Be connected with the very long main stem waste sand storage weir 11 of inclination between the upstream extremity of branch water dike 2 and the right side river levee 4, constructed diversion dike 3 between the stage casing of branch water dike 2 and the right side river levee 4, diversion dike 3 is parallel with the stage casing of dividing water dike 2, between the upstream extremity of diversion dike 3 and the branch water dike 2 scouring sluice 7 is arranged, the downstream of scouring sluice 7 is sand washing roads 16.Between the upstream extremity of diversion dike 3 and the right side river levee 4 water-drawing gate 6 is arranged, the downstream of water-drawing gate 6 is derivation conduits 5.Upstream one side of water-drawing gate 6 and scouring sluice 7 has L shaped riffler 8, the initial right side of the one end river levee 4 of riffler 8, and be arranged in parallel with the direction of water-drawing gate 6, its bottom land tilts to deepen to left end from the initiating terminal of right side river levee 4 gradually, and fixed interval has sand-guiding cover plate 10 above the riffler section that be arranged in parallel with water-drawing gate 6.The left end of riffler 8 ends at branch water dike 2 and scouring sluice 7 places, forms L shaped riffler 8, and its bottom land tilts to deepen to scouring sluice 7, is fixed with sand washing cover plate 9 above leading to the riffler section of scouring sluice 7.Spaced slot direction between the sand-guiding cover plate 10 favours water-drawing gate 6, and towards scouring sluice 7.The The initial segment of riffler 8 is parallel with water-drawing gate 6, and riffler 8 bottom lowest parts easily discharge gravel on scouring sluice 7 doorways from scouring sluice 7.The height of main stem waste sand storage weir 11 is lower than the up-stream face of main stem check dam 1, can tackle sandstone and does not hinder current.
The present invention is to be example with derivation conduit 5 on the right side of main stem check dam 1, because concrete geographic factor, when derivation conduit 5 needed the left side of building at main stem check dam 1, the derivation conduit 5 here also can change the left side layout of symmetry in the right side of main stem check dam 1 layout.The function of main stem check dam 1 is lifting water level, water storage and flood discharge, can keep the up-stream face height constant substantially.
The operating principle of sand setting sediment outflow of the present invention is as follows:
Current that the upstream is come and sand are stopped by main stem check dam 1, and water level is raise, and when rising, the flood floodwater releasing port flood discharge on the check dam 1 of overflowing makes the water level of main stem check dam 1 upstream remain on certain height.Main stem waste sand storage weir 11 is blocked a large amount of gravel 15, be deposited on main stem waste sand storage weir 11 before, the gravel that therefore enters into derivation conduit 5 entrance is significantly cut down. at the riffler 8 that the place ahead of water-drawing gate 6 and scouring sluice 7 is offered, play collection gravel.When gravel moves to riffler 8 places with current, the sand-guiding cover plate 10 on riffler 8 stop that gravel enters the riffler 8 from the slit of sand-guiding cover plate 10, like this, just make the gravel be about to enter water-drawing gate 6 and derivation conduit 5 be removed.When the gravel in the riffler 8 gathers when a certain amount of, open scouring sluice 7, this moment scouring sluice 7 Lift to be placed restrictions on the sand washing cover plate 9 on gate lower edge and the riffler 8 level consistent, i.e. the position of A place dotted line among Fig. 3.Like this, water has only by riffler 8 mobile to scouring sluice 7.The slit that a large amount of water passes between the sand-guiding cover plate 10 enters in the riffler 8, makes the gravel 14 in the groove be entered sand washing road 16 rows smoothly by current scour downstream.Because the sand setting district of this structure is subjected to current scour in the groove in riffler 8, so sediment outflow is clean, thorough, and sediment outflow institute water supply volume needn't be very big.
In the wet season, if the height of scouring sluice 7 is open at a lower appropriate location, remain the gravel 14 in one current scour riffler 8, just can realize the sediment outflow automation.
Claims (4)
1, a kind of sand-drainage construction system for diversion channel is made up of main stem check dam, Fen Shuidi, diversion dike, right side river levee, derivation conduit, water-drawing gate, sand washing road, scouring sluice, main stem waste sand storage weir; It is characterized in that: this structure also has riffler, sand washing cover plate, sand-guiding cover plate; The right side of main stem check dam is connected with branch water dike, its left side is connected with the left side river levee, be connected with the main stem waste sand storage weir between the upstream extremity of branch water dike and the right side river levee, constructed the diversion dike between the stage casing of branch water dike and the right side river levee, the diversion dike is parallel with the stage casing of dividing the water dike, between the upstream extremity of diversion dike and the branch water dike scouring sluice is arranged, the downstream of scouring sluice is the sand washing road; Between the upstream extremity of diversion dike and the right side river levee water-drawing gate is arranged, the downstream of water-drawing gate is a derivation conduit; Upstream one side of water-drawing gate and scouring sluice has L shaped riffler, the initial right side of the one end river levee of riffler, and be arranged in parallel with the direction of water-drawing gate, its bottom land tilts to deepen to left end from the initiating terminal of right side river levee gradually, and fixed interval has sand-guiding cover plate above the riffler section that be arranged in parallel with water-drawing gate; The left end of riffler ends at branch water dike and scouring sluice place, forms L shaped riffler, and its bottom land tilt to be deepened to scouring sluice, is fixed with the sand washing cover plate above leading to the riffler section of scouring sluice.
2, sand-drainage construction system for diversion channel according to claim 1 is characterized in that: the spaced slot direction between the described sand-guiding cover plate favours water-drawing gate, and towards scouring sluice.
3, sand-drainage construction system for diversion channel according to claim 1 is characterized in that: the The initial segment of described riffler is parallel with water-drawing gate, and riffler bottom lowest part easily discharges gravel on the scouring sluice doorway from scouring sluice.
4, sand-drainage construction system for diversion channel according to claim 1 is characterized in that: the height of described main stem waste sand storage weir is lower than the up-stream face of main stem check dam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100219109A CN100465381C (en) | 2005-10-21 | 2005-10-21 | Sand-drainage construction system for diversion channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100219109A CN100465381C (en) | 2005-10-21 | 2005-10-21 | Sand-drainage construction system for diversion channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1952269A CN1952269A (en) | 2007-04-25 |
| CN100465381C true CN100465381C (en) | 2009-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100219109A Active CN100465381C (en) | 2005-10-21 | 2005-10-21 | Sand-drainage construction system for diversion channel |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134844B (en) * | 2010-01-21 | 2014-10-29 | 孟顺利 | Automatic dredging and desilting system for rubber dam |
| CN104153328B (en) * | 2014-04-11 | 2015-12-30 | 中国水利水电第十一工程局有限公司 | The funneling grit chamber construction technology of a kind of channel of approach |
| CN103964650B (en) * | 2014-05-26 | 2015-11-11 | 中国水利水电科学研究院 | A kind of silt removal system and method that silt carrying flow is processed |
| CN104099908B (en) * | 2014-07-31 | 2017-01-18 | 中国电建集团成都勘测设计研究院有限公司 | Gravity type sand obstructing and guiding structure |
| CN105178389B (en) * | 2015-09-02 | 2017-05-03 | 中国能源建设集团广东省电力设计研究院有限公司 | Intake structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10147925A (en) * | 1996-11-19 | 1998-06-02 | Kaisei Kogyo Kk | Discharge device for waste water and sediment |
| CN1229159A (en) * | 1998-03-16 | 1999-09-22 | 王武生 | Method for solving river-bed rising |
-
2005
- 2005-10-21 CN CNB2005100219109A patent/CN100465381C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10147925A (en) * | 1996-11-19 | 1998-06-02 | Kaisei Kogyo Kk | Discharge device for waste water and sediment |
| CN1229159A (en) * | 1998-03-16 | 1999-09-22 | 王武生 | Method for solving river-bed rising |
Non-Patent Citations (2)
| Title |
|---|
| 某水电站首部枢纽防沙排沙设计. 王美丽，沈孟玲.四川水利，第2005年卷第5期. 2005 |
| 某水电站首部枢纽防沙排沙设计. 王美丽，沈孟玲.四川水利，第2005年卷第5期. 2005 * |
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| CN1952269A (en) | 2007-04-25 |
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Owner name: SICHUAN HOPE THAT THE DARK BLUE AND POWER CO. LTD Free format text: FORMER OWNER: CHENGDU HOPE ELECTRONIC RESEARCH INSTITUTE Effective date: 20080201 |
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Effective date of registration: 20080201 Address after: Number 181, Airport Road, Sichuan, Chengdu: 610225 Applicant after: SICHUAN HOPE DEEP BLUE POWER Co.,Ltd. Address before: Number 181, Airport Road, Sichuan, Chengdu: 610225 Applicant before: XIWANG ELECTRONIC INST CHENGDU |
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Owner name: SICHUAN XIWANG SHENLAN ENERGY CHEMICAL CO., LTD. Free format text: FORMER NAME: SICHUAN HOPE THAT THE DARK BLUE AND POWER CO. LTD. |
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Address after: 610225 No. 181, Airport Road, Chengdu, Sichuan Patentee after: Sichuan hope deep blue energy Chemical Co.,Ltd. Address before: 610225 No. 181, Airport Road, Chengdu, Sichuan Patentee before: SICHUAN HOPE DEEP BLUE POWER Co.,Ltd. |
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Effective date of registration: 20231207 Address after: 623200 Yadu Village, Chibusu Town, Mao County, Aba Prefecture, Sichuan Province Patentee after: Sichuan Hope Hydropower Development Co.,Ltd. Address before: 610225 No. 181, Airport Road, Chengdu, Sichuan Patentee before: Sichuan hope deep blue energy Chemical Co.,Ltd. |
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Addressee: Sichuan hope deep blue energy Chemical Co.,Ltd. Person in charge of patents Document name: Notice of Qualified Procedures |
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