CN111778936A - A sand setting trash device for ecological hydropower station is administered river course - Google Patents
A sand setting trash device for ecological hydropower station is administered river course Download PDFInfo
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- CN111778936A CN111778936A CN202010570666.6A CN202010570666A CN111778936A CN 111778936 A CN111778936 A CN 111778936A CN 202010570666 A CN202010570666 A CN 202010570666A CN 111778936 A CN111778936 A CN 111778936A
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- sand
- water
- overflow
- section
- river
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention relates to a sand setting and dirt blocking device for treating a river channel by an ecological hydropower station, which comprises an overflow sand blocking dam arranged in the river channel and used for dividing the river channel into an upstream section and a downstream section, wherein sand lifting pools are arranged between the overflow sand blocking dam and the river channel, one side of the overflow sand blocking dam facing the downstream section is obliquely provided with a water falling surface used for converting gravitational energy into water diversion kinetic energy by a high-level water body at the upstream section, the bottom of one side of the overflow sand blocking dam facing the upstream section is provided with a sedimentation tank, the bottom of the overflow sand blocking dam is provided with a plurality of water diversion channels used for guiding low-level water bodies in the sedimentation tank into the water falling surface, one side of the sedimentation tank close to the water diversion channels is provided with a filtering structure, and the side surfaces of the sedimentation tank are respectively communicated with the. The invention can reduce the action between the settled sand and the water body, avoid the secondary pollution of the water body in the sand extraction process, effectively improve the settling efficiency of the sand and stone and have good function of settling sand and blocking dirt.
Description
Technical Field
The invention relates to the technical field of river channel treatment, in particular to a sand settling and dirt blocking device for river channel treatment in an ecological hydropower station.
Background
The water and soil loss in hilly and mountainous areas is very serious, which causes the continuous rise of downstream riverbeds and even causes dikes. For this reason, countries spend a lot of manpower, material resources, and financial resources for water and soil conservation. At present, the method for preventing and treating water and soil loss mainly comprises vegetation measures and engineering measures, wherein the engineering measures mainly adopt a mode of utilizing natural sedimentation by a sand blocking sedimentation dam to reduce the water and soil loss, however, the mode mainly utilizes the static sedimentation of water flow in a river channel, the effect of sand settling and dirt blocking is poor, sand and stone are lifted by a sand lifting device stretching into the bottom of a river bed after sand settling, and the sand and stone can be mixed with a water body, so that the water body pollution can be further caused, and the purification effect of the water body is not facilitated.
Disclosure of Invention
The invention aims to solve the technical problems and provides a sand setting and dirt blocking device for treating a river channel in an ecological hydropower station, which converts high-level gravitational potential energy of a water body in the river channel into suction power so as to effectively filter and remove sand setting in the river channel.
The technical scheme for solving the technical problems is as follows:
the utility model provides a sand setting trash device for ecological hydropower station is administered to river course, including set up in the river course be used for with the river course is separated for the overflow sand blocking dam of upper reaches section and lower reaches section, overflow sand blocking dam with all be equipped with between the river course and carry the sand basin, overflow sand blocking dam orientation one side slope of lower reaches section is provided with and is used for the high-order water of upper reaches section turns into the drop surface of water kinetic energy with gravity energy, overflow sand blocking dam orientation one side bottom of upper reaches section is equipped with the sedimentation tank, the bottom of overflow sand blocking dam be equipped with be used for with low-order water is leading-in the sedimentation tank is leading-in a plurality of diversion passageways of drop surface of water, the sedimentation tank is close to one side of diversion passageway is equipped with filtration, the side of sedimentation tank respectively with the bottom intercommunication of carrying the sand basin.
The invention has the beneficial effects that: the sand settling tank is connected with the sand extracting tank, so that the action between the sand settling tank and the water body can be reduced during sand extracting treatment in the sand extracting tank, and the secondary pollution of the water body in the sand extracting process is avoided; be equipped with diversion channel in overflow sand-blocking dam, this diversion channel can be when the overflow, and high-order water flows along the drop surface and turns into the gravitational potential energy into the ability that flows to utilize the ability that flows to lead the water entering drop surface and the discharge of bottom in with the grit chamber through diversion channel, can effectual promotion grit like this subside efficiency.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, the top of the sedimentation tank is provided with an interception plate, and the interception plate is covered at the opening at the upper side of the sedimentation tank.
The beneficial effect of adopting the further scheme is that: the interception plate can play a role in primary filtering and sedimentation of settled sand.
Furthermore, a plurality of sand setting holes are distributed on the interception plate.
The beneficial effect of adopting the further scheme is that: the sand settling hole can facilitate the sand above the interception plate to enter the sand settling tank for further filtration.
Further, the filtration is including piling up in the sedimentation tank side with gravel layer and slope between the overflow fender sand dam are located gravel layer orientation the protection frame of upper reaches section one side, the upper end of protection frame with the lateral wall fixed connection of overflow fender sand dam, the lower extreme of protection frame with the diapire fixed connection of sedimentation tank, gravel layer cover in the diversion passageway with the one end outside of sedimentation tank intercommunication.
The beneficial effect of adopting the further scheme is that: the protection frame is arranged to ensure the stability of the pebble layer, so that the influence on the stacking of the pebble layer and the sand settling effect of the pebble layer under the water flow scouring effect are avoided.
Furthermore, pebbles with the diameter of 40-60 mm are adopted in the pebble layer.
The beneficial effect of adopting the further scheme is that: adopt 40 ~ 60 mm's cobblestone, can utilize the interval of piling up between the cobblestone to filter the water that passes through to the grit of the low water level of effectual filtering upper reaches section.
Furthermore, the diversion channel is in an inverted U shape, and one end of the diversion channel communicated with the water drop surface is higher than one end of the diversion channel communicated with the sedimentation basin.
The beneficial effect of adopting the further scheme is that: set up to the shape of falling U, can be at the gravity of upper reaches section water and the high water level of upper reaches section turn into the gravitational potential energy and draw the hydraulic energy dual function down, filter the grit, can play the effect that the sediment was settleed to the sediment.
Furthermore, a throttling guide groove is formed in the water falling surface and corresponds to the diversion channel, and one end of the diversion channel is communicated with the bottom wall of the throttling guide groove.
The beneficial effect of adopting the further scheme is that: the water body that the throttle guide ditch can be in the overflow in-process plays the guide effect, can be better turn into the guiding kinetic energy with the gravitational potential energy of the high water level overflow of upper reaches section, the filter effect is good.
Furthermore, a liquid suction groove is formed in the water falling surface and corresponds to the water diversion channel, and one end of the water diversion channel is communicated with the bottom wall of the liquid suction groove.
The beneficial effect of adopting the further scheme is that: the contact area between the suction tank and the overflow water body is large, so that water can be guided well.
Furthermore, the throttling guide ditch comprises a throttling section and a guide section, the throttling section is arranged along the water drop surface in an inclined mode, and the guide section is arranged along the horizontal direction.
The beneficial effect of adopting the further scheme is that: the throttling section can guide the overflow water body into the guiding section when the overflow is insufficient, so that the water can be continuously sucked through the water diversion channel as long as the overflow exists, and the filtering is always performed in the process that the low-water-level water body in the upstream section flows downwards.
Further, the liquid suction groove is arranged at a half height of the water falling surface.
The beneficial effect of adopting the further scheme is that: the suction tank can avoid influencing the diversion of the diversion channel due to the blocking effect of the downstream section on the water body.
Drawings
FIG. 1 is a front view of the structure of the preferred embodiment of the present invention;
FIG. 2 is a top view of the structure of the preferred embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. an overflow dam; 2. dropping the water surface; 3. a sand extracting tank; 4. a water diversion channel; 5. a liquid suction tank; 6. a throttling guide channel; 61. a throttling section; 62. a guide section; 7. a pebble layer; 8. a protective frame; 9. a interception plate; 10. a sedimentation tank; 11. a sand setting hole; 12. an upstream section; 13. a downstream section.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Examples
As shown in fig. 1-2, the core of the present invention is to provide a sand setting and dirt blocking device for treating a river channel in an ecological hydropower station, which includes an overflow sand blocking dam 1 arranged in the river channel to divide the river channel into an upstream section 12 and a downstream section 13, a sand lifting pool 3 is arranged between the overflow sand blocking dam 1 and the river channel, one side of the overflow sand blocking dam 1 facing the downstream section 13 is obliquely provided with a water falling surface 2 for converting gravitational energy into water diversion energy by a high-level water body of the upstream section 12, the bottom of one side of the overflow sand blocking dam 1 facing the upstream section 12 is provided with a settling pool 10, the bottom of the overflow sand blocking dam 1 is provided with a plurality of water diversion channels 4 for guiding a low-level water body in the settling pool 10 into the water falling surface 2, one side of the settling pool 10 close to the water diversion channels 4 is provided with a filtering structure, and the side surfaces of the settling pool 10 are respectively communicated with the bottom of; it can be understood that when the water level of the upstream section 12 is higher than the height of the overflow sand-blocking dam, the high water level on the surface of the upstream section 12 can sequentially pass through the overflow sand-blocking dam and the water falling surface 2 to enter the downstream section 13, because the high water level water flowing through the water falling surface 2 converts the gravitational potential energy into flowing potential energy, the flowing water contacts with the water body in the water diversion channel 4, through the impact and entrainment effect and the static pressure effect of the water body in the sedimentation basin 10 of the upstream section 12, the water body in the water diversion channel 4 continuously flows to the water falling surface 2 from the sedimentation basin 10, and the water body in the sedimentation basin 10 forms a downward flowing effect, so that the time of natural sedimentation can be reduced, and the sand setting and dirt blocking effects are good.
It should be further noted that, a sand extracting device (not shown in the figure) is arranged in the sand extracting tank 3, and since the bottom of the sand extracting tank 3 is connected with the settling tank 10, when sand extraction is performed, contact between a water body in the sand extracting tank 3 and a water body in the upstream section 12 is avoided, and meanwhile, settled sand in the settling tank 10 is continuously supplemented into the sand extracting tank 3 in the sand extracting process.
Preferably, the top of the sedimentation basin 10 is provided with a interception plate 9, and the interception plate 9 is covered on the upper opening of the sedimentation basin 10.
Preferably, a plurality of sand setting holes 11 are arranged on the interception plate 9, and it should be noted that the purpose of arranging the interception plate 9 and the sand setting holes 11 is to avoid that the sand setting is too thick in the sedimentation tank 10 due to too high sand content in the water body of the upstream section 12, and to block the flow of the water body, so that the water body and the sand setting are always present in the sedimentation tank, and when the sand setting passes through the continuous sand lifting of the sand lifting tank 3, the sand setting on the upper side of the interception plate 9 can enter the sedimentation tank 10 to be filtered along with the driving of the water body, and it can be understood that the sand lifting and the filtering are performed synchronously.
Preferably, the filtering structure comprises a pebble layer 7 stacked between the side surface of the sedimentation basin 10 and the overflow sand blocking dam 1 and a protective frame 8 obliquely arranged on one side of the pebble layer 7 facing the upstream section 12, the upper end of the protective frame 8 is fixedly connected with the side wall of the overflow sand blocking dam 1, the lower end of the protective frame 8 is fixedly connected with the bottom wall of the sedimentation basin 10, and the pebble layer 7 covers the outer side of one end of the water diversion channel 4 communicated with the sedimentation basin 10; it should be noted that the protective frame 8 is made of a grid plate, and the protective frame 8 is inclined at 30 °.
Preferably, the pebble layer 7 is pebbles with the diameter of 40-60 mm, and in the embodiment, the pebbles have the diameter of 50 mm.
Preferably, the diversion channel 4 is in an inverted U shape, and one end of the diversion channel 4 communicated with the water drop surface 2 is higher than one end of the diversion channel 4 communicated with the sedimentation basin 10; it should be noted that the water diversion channel 4 is formed in a U shape, and the flow of liquid can be effectively promoted by using the siphon principle.
Preferably, the water falling surface 2 is provided with a throttling guide groove 6 corresponding to the water diversion channel 4, and one end of the water diversion channel 4 is communicated with the bottom wall of the throttling guide groove 6; it should be noted that the throttling guide channel 6 can guide the overflowing water body when the overflowing water amount is insufficient.
Preferably, the water dropping surface 2 is provided with a liquid suction groove 5 corresponding to the water guide channel 4, one end of the water guide channel 4 is communicated with the bottom wall of the liquid suction groove 5, and it should be noted that the liquid suction groove is in an elliptical shape or a spherical shape with four wind.
Preferably, the throttling guide channel 6 comprises a throttling section 61 and a guide section 62, the throttling section 61 is arranged along the water dropping surface 2 in an inclined mode, and the guide section 62 is arranged in the horizontal direction.
Preferably, the liquid suction groove 5 is arranged at a half height of the water falling surface 2, and it should be noted that the liquid suction groove 5 is arranged at a half height of the water falling surface, so that the influence of the blocking effect of the downstream section 13 water body on the water falling surface 2 on the suction effect of the water in the water guide channel 4 can be avoided.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a sand setting trash device that is used for ecological power station to river regulation, its characterized in that, including set up overflow sand-blocking dam (1) that is used for separating the river course for upper reaches section (12) and lower reaches section (13) in the river course, overflow sand-blocking dam (1) with all be equipped with between the river course and carry sand pond (3), overflow sand-blocking dam (1) is provided with towards one side slope of lower reaches section (13) and is used for the high-order water of upper reaches section (12) turns into the drop surface of water (2) of diversion kinetic energy with gravity energy, overflow sand-blocking dam (1) towards one side bottom of upper reaches section (12) is equipped with sedimentation tank (10), the bottom of overflow sand-blocking dam (1) is equipped with and is used for with the leading-in of sedimentation tank (10) low-order to lead to a plurality of diversion passageways (4) of drop surface of water (2), sedimentation tank (10) are close to one side of diversion passageway (4) is equipped with filtration, the side surfaces of the sedimentation tank (10) are respectively communicated with the bottom of the sand extraction tank (3).
2. The sand settling and dirt blocking device for the river channel treatment of the ecological hydropower station as claimed in claim 1 is characterized in that a blocking plate (9) is arranged at the top of the settling tank (10), and the blocking plate (9) is covered on an upper opening of the settling tank (10).
3. The sand settling and dirt blocking device for the river regulation of the ecological hydropower station as claimed in claim 2, wherein a plurality of sand settling holes (11) are distributed on the blocking plate (9).
4. The sand setting trash device for river regulation in ecological hydropower stations is characterized in that the filtering structure comprises a pebble layer (7) stacked between the side surface of the sedimentation basin (10) and the overflow sand blocking dam (1) and a protection frame (8) obliquely arranged on one side, facing the upstream section (12), of the pebble layer (7), the upper end of the protection frame (8) is fixedly connected with the side wall of the overflow sand blocking dam (1), the lower end of the protection frame (8) is fixedly connected with the bottom wall of the sedimentation basin (10), and the pebble layer (7) covers the outer side of one end, communicated with the sedimentation basin (10), of the diversion channel (4).
5. The sand setting and trash holding device for the river channel treatment of the ecological hydropower station as claimed in claim 4, wherein the pebble layer (7) is pebbles with a diameter of 40-60 mm.
6. The sand settling and dirt blocking device for the river channel treatment of the ecological hydropower station as claimed in claims 1 to 5, wherein the diversion channel (4) is in an inverted U shape, and one end of the diversion channel (4) communicated with the water drop surface (2) is higher than one end of the diversion channel (4) communicated with the sedimentation basin (10).
7. The sand settling and dirt blocking device for the river channel treatment of the ecological hydropower station as claimed in claim 6, wherein a throttling guide ditch (6) is formed in the water falling surface (2) corresponding to the diversion channel (4), and one end of the diversion channel (4) is communicated with the bottom wall of the throttling guide ditch (6).
8. The sand settling and dirt blocking device for the ecological hydropower station to treat the river channel is characterized in that a liquid suction groove (5) is formed in the water falling surface (2) corresponding to the water diversion channel (4), and one end of the water diversion channel (4) is communicated with the bottom wall of the liquid suction groove (5).
9. The sand sediment trash device for the river regulation of the ecological hydropower station is characterized in that the throttling guide ditch (6) comprises a throttling section (61) and a guide section (62), the throttling section (61) is obliquely arranged along the water falling surface (2), and the guide section (62) is horizontally arranged.
10. The sand settling and dirt blocking device for the river regulation of the ecological hydropower station is characterized in that the liquid suction groove (5) is arranged at the half height of the water drop surface (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010570666.6A CN111778936A (en) | 2020-06-19 | 2020-06-19 | A sand setting trash device for ecological hydropower station is administered river course |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010570666.6A CN111778936A (en) | 2020-06-19 | 2020-06-19 | A sand setting trash device for ecological hydropower station is administered river course |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111778936A true CN111778936A (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010570666.6A Withdrawn CN111778936A (en) | 2020-06-19 | 2020-06-19 | A sand setting trash device for ecological hydropower station is administered river course |
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| CN (1) | CN111778936A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116537131A (en) * | 2023-05-05 | 2023-08-04 | 浙江碧水量子科技有限公司 | Ecological ditch system for farmland water return |
-
2020
- 2020-06-19 CN CN202010570666.6A patent/CN111778936A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116537131A (en) * | 2023-05-05 | 2023-08-04 | 浙江碧水量子科技有限公司 | Ecological ditch system for farmland water return |
| CN116537131B (en) * | 2023-05-05 | 2023-11-28 | 浙江碧水量子科技有限公司 | Ecological ditch system for farmland water return |
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Application publication date: 20201016 |