CN109183889B - A desilting device for small-size hydropower station - Google Patents
A desilting device for small-size hydropower station Download PDFInfo
- Publication number
- CN109183889B CN109183889B CN201811280119.3A CN201811280119A CN109183889B CN 109183889 B CN109183889 B CN 109183889B CN 201811280119 A CN201811280119 A CN 201811280119A CN 109183889 B CN109183889 B CN 109183889B
- Authority
- CN
- China
- Prior art keywords
- pipe
- dam
- silt
- hydropower station
- silt pipe
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000011010 flushing procedure Methods 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 16
- 239000010802 sludge Substances 0.000 claims description 26
- 239000007921 spray Substances 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/8808—Stationary installations, e.g. installations using spuds or other stationary supports
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
- E02F5/287—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with jet nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a dredging device for a small hydropower station, which comprises a dam, wherein an arc-shaped silt pipe is arranged at the bottom of a water storage test part of the dam, one end of the silt pipe is sealed, the other end of the silt pipe extends out of the dam and is provided with a valve, a flushing pipe is arranged on the outer side of the silt pipe, one end of the flushing pipe is sealed, the other end of the flushing pipe extends out of the dam and is connected with a flushing pump, a plurality of spraying pipes are connected between the flushing pipe and the silt pipe, a plurality of blades are arranged on the inner side of the silt pipe, the blades are connected onto a stirring shaft, the top end of the stirring shaft is connected with a speed reducer and a stirring motor, and the stirring shaft is fixed on a support through a bearing. The arc-shaped silt pipe is arranged at the bottom of the inner side of a dam of a hydropower station, the stirring device is arranged at the inner side of the silt pipe, so that the silt at the bottom of the dam can be stirred into the silt pipe, and then the silt is flushed out of the dam by the high-pressure water pump, so that a good effect is achieved.
Description
Technical Field
The invention relates to a small hydropower station, in particular to a dredging device for the small hydropower station, and belongs to the technical field of hydropower equipment.
Background
The medium-small hydropower station is also used in a large quantity in mountain areas with relatively backward economy, the medium-small hydropower station is an effective supplement to the electric power of a large power grid of a country and contributes to the economic development of the backward areas, but because the common medium-small hydropower station is built in the mountain areas, a large quantity of silt is deposited at a dam in the use process of the long-term accumulation, the bottom surface of a reservoir rises to cause the reduction of the actual water storage capacity, the water storage capacity is influenced, the power generation power of the hydropower station is influenced, the effective volume of the hydropower station is greatly reduced due to long-term silt accumulation, the hydropower station is abandoned if the long-term silt cannot be cleared, and the silt flows into a hydropower unit and also reduces the service life of the hydropower unit.
Disclosure of Invention
The invention aims to solve the technical problems that: the utility model provides a dredging device for small-size hydropower station, it sets up arc silt pipe in the dam inboard bottom of hydropower station, has agitating unit in the inboard of silt pipe, can stir the silt of dam foundation to the silt intraductal, outside the dam is washed out to the reuse high-pressure water pump, the effectual problem that has solved above-mentioned existence.
The technical scheme of the invention is as follows: a dredging device for small hydropower station, it includes the dam, the retaining of dam is surveyed the bottom and is equipped with curved silt pipe, the one end of silt pipe is sealed, and the other end stretches out the outside of dam and is equipped with the valve on the silt pipe, is equipped with the wash pipe in the outside of silt pipe, the one end of wash pipe is sealed, and the other end stretches out the outside of dam and is connected with the wash pump, is connected with a plurality of spray tubes between wash pipe and the silt pipe, is equipped with a plurality of blades in the inboard of silt pipe, the blade is connected on the (mixing) shaft, and the top of (mixing) shaft is connected with reduction gear and (mixing) motor, and the (mixing) shaft passes through the bearing to be fixed on the support.
The cross section of the silt pipe is of a square structure, on the silt pipe section at the inner side of the dam, the inner side edge of the silt pipe is an inserting plate capable of moving upwards, the inserting plate is movably connected to the support through a plurality of supporting rods, and a plurality of positioning plates are arranged at the inner side of the inserting plate.
The spray pipe is fixedly connected to the side edge of the sludge pipe and forms an included angle of 50-70 degrees with the tangent line of the sludge pipe.
The blades are of an arc-shaped plate structure, are vertically arranged and are uniformly distributed along the circumference of the stirring shaft.
The water inlet of the flushing pump is connected with a water inlet pipe, the top end of the water inlet pipe stretches into the position below the inner water level of the dam, and a filter screen is arranged at the end part of the water inlet pipe.
The end of the bracket is movably connected to the fixed seat and can move upwards along the fixed seat.
The fixing base is fixedly connected to the top of the dam, a cross beam is connected between the top ends of the fixing base, and a hoist is connected to the cross beam.
The beneficial effects of the invention are as follows: compared with the prior art, the technical scheme of the invention is that the arc-shaped silt pipe is arranged at the bottom of the inner side of the dam of the hydropower station, the stirring device is arranged at the inner side of the silt pipe, so that the silt at the bottom of the dam can be stirred into the silt pipe and then is flushed out of the dam by the high-pressure water pump, thereby preventing sediment accumulation, prolonging the service life of the hydropower unit to a certain extent and obtaining good use effect.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of the invention A-A;
fig. 3 is a partial enlarged view of the present invention B.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings of the present specification.
Example 1: as shown in the attached figures 1-3, the dredging device for the small hydropower station comprises a dam 10, an arc-shaped sludge pipe 2 is arranged at the bottom of a water storage test part of the dam 10, one end of the sludge pipe 2 is sealed, the other end of the sludge pipe extends out of the dam 10 and is provided with a valve 14 on the sludge pipe 2, a flushing pipe 4 is arranged on the outer side of the sludge pipe 2, one end of the flushing pipe 4 is sealed, the other end of the flushing pipe extends out of the dam 10 and is connected with a flushing pump 9, a plurality of spray pipes 3 are connected between the flushing pipe 4 and the sludge pipe 2, a plurality of blades 6 are arranged on the inner side of the sludge pipe 2, the blades 6 are connected to a stirring shaft 7, a speed reducer and a stirring motor 13 are connected to the top end of the stirring shaft 7, and the stirring shaft 7 is fixed on a support 12 through bearings.
Further, the cross section of the silt pipe 2 is of a square structure, on the silt pipe 2 section inside the dam 10, the inner side edge of the silt pipe 2 is provided with an inserting plate 5 capable of moving upwards, the inserting plate 5 is movably connected to the support 12 through a plurality of support rods 1, and the inner side of the inserting plate 5 is provided with a plurality of positioning plates 16. The locating plate has the inclined plane, when picture peg 5 moves down, can be fine fix a position on the inboard edge of silt pipe 2, play better sealed effect, and bracing piece 1 can be on support 12 through rotatory reciprocating of screw thread, drives picture peg 5 and reciprocates, reaches sealed function.
Further, the spray pipe 3 is fixedly connected to the side edge of the sludge pipe 2 and forms an included angle of 50-70 degrees with the tangent line of the sludge pipe 2. When the flushing pump 9 is operated, the high-pressure water brought by the water pump is flushed in the tangential direction, so that the sludge can be brought out of the dam 10.
Further, the blades 6 are of an arc-shaped plate structure, and the blades 6 are vertically arranged and evenly distributed along the circumference of the stirring shaft 7. The sludge at the bottom of the dam 10 can be stirred into the sludge pipe 2 under the rotation drive of the arc-shaped blades 6, and then the sludge pipe is sealed by the plugboard 5, so that the sludge can be washed by the washing pump 9.
Further, a water inlet of the flushing pump 9 is connected with a water inlet pipe 11, the top end of the water inlet pipe 11 stretches into the water level of the inner side of the dam 10, and a filter screen 15 is arranged at the end part. The filter screen 15 ensures that the water entering the flushing pump 9 is free of impurities and provides a high pressure water flow for flushing.
Further, the end of the bracket 12 is movably connected to the fixing seat 19, and can move upwards along the fixing seat 19. The fixing seat 19 is made of channel steel, the end part of the bracket 12 is placed in a groove of the channel steel for positioning, and the bracket 12 can move upwards in the channel steel groove of the fixing seat 19 for a certain distance.
Further, a fixing seat 19 is fixedly connected to the top of the dam 10, a cross beam 18 is connected between the tops of the fixing seats 19, and a hoist 17 is connected to the cross beam 18. The other fixing seat 19 is fixedly supported on the river bank, and the bracket 12 can be lifted by a certain height distance through the hoist 17.
The working principle of the device is as follows: when the hydropower station normally operates at ordinary times, the support 12 is lifted to a certain height through the hoist 17, at this time, the bottom of the dam 10 can collect sludge, the valve 14 is in a closed state, the water valve 8 on the water outlet pipe in front of the flushing pump 9 is in a closed state, the inserting plate 5 is positioned above the side of the sludge pipe 2, when the sludge at the bottom of the dam 10 reaches a certain thickness, the support 12 is placed through the hoist 17, the stirring motor 13 and the speed reducer are started to drive the stirring shaft 7 and the blades 6 to rotate, the sludge can be blocked into the sludge pipe 2, at this time, the inserting plate 5 can be moved downwards under the drive of threads through the rotary support rod 1, the sludge pipe 2 can be sealed, at this time, the water valve 8 and the valve 14 are opened again, the flushing pump 9 is started, the high-pressure flushing water is filled in the flushing pipe 4, the sludge in the sludge pipe 2 is sprayed by the high-pressure spraying pipe 3, the outside the dam 10, the purpose of dredging is achieved, and after dredging is finished, the support 12 can be lifted.
The present invention is not described in detail in the present application, and is well known to those skilled in the art. Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (5)
1. A dredging device for small hydropower stations, comprising a dam (10), characterized in that: the utility model discloses a water storage side bottom of dam (10) is equipped with curved silt pipe (2), the one end of silt pipe (2) is sealed, and the other end stretches out the outside of dam (10) and is equipped with valve (14) on silt pipe (2), is equipped with wash pipe (4) in the outside of silt pipe (2), the one end of wash pipe (4) is sealed, and the other end stretches out the outside of dam (10) and is connected with wash pump (9), is connected with a plurality of spray tubes (3) between wash pipe (4) and silt pipe (2), is equipped with a plurality of blades (6) in the inboard of silt pipe (2), blade (6) are connected on (mixing) shaft (7), and the top of (mixing) shaft (7) is connected with reduction gear and agitator motor (13), and (7) are fixed on support (12) through the bearing. The cross section of the silt pipe (2) is of a square structure, on the silt pipe (2) section at the inner side of the dam (10), the inner side edge of the silt pipe (2) is provided with an inserting plate (5) capable of moving upwards, the inserting plate (5) is movably connected to the bracket (12) through a plurality of supporting rods (1), and the inner side of the inserting plate (5) is provided with a plurality of positioning plates (16); the spray pipe (3) is fixedly connected to the side edge of the sludge pipe (2) and forms an included angle of 50-70 degrees with the tangent line of the sludge pipe (2).
2. The dredging arrangement for a small hydropower station as claimed in claim 1, wherein: the blades (6) are of arc-shaped plate structures, and the blades (6) are vertically arranged and uniformly distributed along the circumference of the stirring shaft (7).
3. The dredging arrangement for a small hydropower station as claimed in claim 1, wherein: the water inlet of the flushing pump (9) is connected with a water inlet pipe (11), the top end of the water inlet pipe (11) stretches into the water level of the inner side of the dam (10), and a filter screen (15) is arranged at the end part.
4. The dredging arrangement for a small hydropower station as claimed in claim 1, wherein: the end part of the bracket (12) is movably connected to the fixed seat (19) and can move upwards along the fixed seat (19).
5. The dredging arrangement for a small hydropower station as claimed in claim 4, wherein: the fixed seat (19) is fixedly connected to the top of the dam (10), a cross beam (18) is connected between the tops of the fixed seats (19), and a hoist (17) is connected to the cross beam (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280119.3A CN109183889B (en) | 2018-10-30 | 2018-10-30 | A desilting device for small-size hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811280119.3A CN109183889B (en) | 2018-10-30 | 2018-10-30 | A desilting device for small-size hydropower station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109183889A CN109183889A (en) | 2019-01-11 |
| CN109183889B true CN109183889B (en) | 2024-03-26 |
Family
ID=64940885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811280119.3A Active CN109183889B (en) | 2018-10-30 | 2018-10-30 | A desilting device for small-size hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109183889B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2375395A1 (en) * | 1976-11-12 | 1978-07-21 | Sainrapt Et Brice | Continuous removal of deposits behind dam - has mud pump covering area and discharging diluted sediment through drain outlet |
| JP2000120050A (en) * | 1998-10-20 | 2000-04-25 | Kajima Corp | Method for scouring sedimentary sand on bottom and device therefor |
| CN2809006Y (en) * | 2005-03-23 | 2006-08-23 | 杨力行 | Gravity flow sediment ejector |
| TWM308273U (en) * | 2006-08-22 | 2007-03-21 | Chin-Ming Huang | Apparatus for removing reservoir sludge |
| JP2012193502A (en) * | 2011-03-15 | 2012-10-11 | Penta Ocean Construction Co Ltd | Fixed type dam dredging system and method of the same |
| CN104032709A (en) * | 2014-06-20 | 2014-09-10 | 中建五局第三建设有限公司 | Silt prevention method for curves of urban rivers |
| CN205974165U (en) * | 2016-07-13 | 2017-02-22 | 赵友先 | Sewage regeneration application system |
| CN206205029U (en) * | 2016-11-22 | 2017-05-31 | 河海大学 | A kind of power station silt displacement device |
| CN107119703A (en) * | 2017-05-10 | 2017-09-01 | 刘丽娟 | A kind of water conservancy rushes heavy well construction equipment |
| CN209040189U (en) * | 2018-10-30 | 2019-06-28 | 贵州大学 | A kind of Accrete clearing device for small hydropower station |
-
2018
- 2018-10-30 CN CN201811280119.3A patent/CN109183889B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2375395A1 (en) * | 1976-11-12 | 1978-07-21 | Sainrapt Et Brice | Continuous removal of deposits behind dam - has mud pump covering area and discharging diluted sediment through drain outlet |
| JP2000120050A (en) * | 1998-10-20 | 2000-04-25 | Kajima Corp | Method for scouring sedimentary sand on bottom and device therefor |
| CN2809006Y (en) * | 2005-03-23 | 2006-08-23 | 杨力行 | Gravity flow sediment ejector |
| TWM308273U (en) * | 2006-08-22 | 2007-03-21 | Chin-Ming Huang | Apparatus for removing reservoir sludge |
| JP2012193502A (en) * | 2011-03-15 | 2012-10-11 | Penta Ocean Construction Co Ltd | Fixed type dam dredging system and method of the same |
| CN104032709A (en) * | 2014-06-20 | 2014-09-10 | 中建五局第三建设有限公司 | Silt prevention method for curves of urban rivers |
| CN205974165U (en) * | 2016-07-13 | 2017-02-22 | 赵友先 | Sewage regeneration application system |
| CN206205029U (en) * | 2016-11-22 | 2017-05-31 | 河海大学 | A kind of power station silt displacement device |
| CN107119703A (en) * | 2017-05-10 | 2017-09-01 | 刘丽娟 | A kind of water conservancy rushes heavy well construction equipment |
| CN209040189U (en) * | 2018-10-30 | 2019-06-28 | 贵州大学 | A kind of Accrete clearing device for small hydropower station |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109183889A (en) | 2019-01-11 |
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