Novel stilling pool structure
By employing staggered energy dissipation components and a vortex design in the stilling basin, the problems of impurity blockage and entanglement are solved, achieving efficient water flow energy dissipation and reduced maintenance costs.
Patent Information
- Application Number
- CN202520584358.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Traditional stilling basins are prone to clogging by impurities in the water flow, resulting in high maintenance costs. Furthermore, the stilling blades are easily entangled and difficult to clean.
A novel energy dissipation pool structure is designed, employing staggered energy dissipation components, including energy dissipation plates, impurity-blocking mesh plates, and energy dissipation slurry plates, combined with counterflow blocks and rectangular through channels to form an internal zone to intercept impurities, and disperses the kinetic energy of water flow through vortices and turbulence blades.
It effectively avoids clogging by impurities, reduces maintenance difficulty and cost, improves energy dissipation, reduces sediment accumulation, and extends equipment life.
Smart Images
Figure CN223951728U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a flood discharge and energy dissipation technical field, concretely relates to a novel stilling basin structure. BACKGROUND
[0002] The stilling basin is a protective structure installed on the riverbed and capable of eliminating most of the kinetic energy of the water flow, thereby protecting the riverbed and the bank slope. Since the energy dissipation basin is usually built at a natural water source, a large amount of silt, waterweeds and other sundries are mixed in the water. The turbulence structure and the water blocking plate provided in the traditional stilling basin can disorder the water flow or block the water flow to a certain extent, so that the water flow collides with each other to consume or disperse the kinetic energy.
[0003] The water flow slows down in the downstream of the stilling basin, and the process of consuming the kinetic energy of the water flow is accompanied by the slowing down of the water flow. The silt and other sundries mixed in the water flow are easily settled at the bottom under the interception of the water blocking plate in the downstream. In order to make the water blocking plate have a better water blocking and energy dissipation effect, the through hole for allowing the water flow to pass through the water blocking plate is usually small. The silt accumulated for a long time may block the through hole, and the silt needs to be cleaned regularly, which has a high maintenance cost.
[0004] In addition, there is a structure using energy dissipation blades to dissipate the energy of the water flow in the prior art. The water flow impacting on the energy dissipation blades can convert the linear kinetic energy of the water flow into driving force for rotation of the energy dissipation blades to consume the kinetic energy of the water flow. The rotating energy dissipation blades can also change the direction of the water flow to play a turbulence effect. However, the energy dissipation blades are usually exposed to the outside and are easily entangled with the waterweeds and other sundries mixed in the water flow. The energy dissipation blades cannot rotate and cannot play a good energy dissipation effect. It is difficult to remove the sundries entangled in the energy dissipation blades, and the maintenance in the later period is inconvenient.
[0005] In view of the problems existing in the prior art, the utility model designs and manufactures a novel stilling basin structure to overcome the above-mentioned defects. CONTENT OF THE UTILITY MODEL
[0006] In view of the problems existing in the prior art, the utility model provides a novel stilling basin structure, which is convenient to maintain and reduces the maintenance cost.
[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a novel stilling basin structure, comprising a flood discharge slope and a stilling basin arranged in a riverbed, wherein the stilling basin is connected to the lower end of the flood discharge slope, and a plurality of energy dissipation assemblies arranged in rows and staggered are installed on the stilling basin.
[0008] The energy dissipation assembly comprises a baffle plate and a V-shaped screen plate, the screen plate is installed on one side of the baffle plate close to the spillway slope, the screen plate and the baffle plate jointly enclose a triangular inner area, a plurality of energy dissipation slabs corresponding to the screen plate are installed on the baffle plate, and the energy dissipation slabs are located in the inner area;
[0009] One end of the baffle plate away from the spillway slope is provided with a reflux block, one side of the reflux block facing the spillway slope is provided with a circular arc surface capable of guiding water flow to generate vortex, and a row of support blocks are installed on the baffle plate close to the reflux block;
[0010] The lower end of the reflux block is provided with a plurality of rectangular through grooves, the rectangular through grooves and the support blocks are staggered and arranged alternately, the support blocks are in the shape of an isosceles triangular prism, and the support blocks can guide impurities in the vortex into the rectangular through grooves.
[0011] Preferably, the baffle plate and the support blocks are respectively provided with first water passing holes and second water passing holes capable of passing water flow, and the first water passing holes and the second water passing holes can communicate with each other.
[0012] Preferably, the baffle plate is provided with a drainage angle at both ends, and the drainage angle guides water flow to impact the energy dissipation slabs located on the downstream side.
[0013] Preferably, a transition slope is installed at the connection between the spillway slope and the baffle plate, and the inclination angle of the transition slope is smaller than that of the spillway slope.
[0014] Preferably, a plurality of guide strips are installed on the spillway slope to guide water flow to the baffle plate.
[0015] Preferably, drainage blocks are installed on both sides of the riverbed, the drainage blocks are located below the guide strips, and the drainage blocks can guide water flow to the area of the baffle plate provided with the energy dissipation assembly.
[0016] Preferably, the guide strips are equidistantly arranged on the spillway slope.
[0017] Preferably, the energy dissipation slabs comprise a fixed shaft and a plurality of turbulence vanes rotatably installed on the fixed shaft, and the lower end of the fixed shaft is fixed on the baffle plate.
[0018] Preferably, the plurality of turbulence vanes are equidistantly arranged on the fixed shaft.
[0019] Preferably, the circular arc surface continuously increases in curvature from the baffle plate upwards, and the top end of the circular arc surface is tangent to the horizontal plane.
[0020] The utility model discloses beneficial effect shows in:
[0021] 1. The utility model discloses a energy dissipation slurry board is installed in the built -in area surrounded by the screen net board and the energy dissipation board, can be blocked in the built -in area outside the larger sundries in water, avoid sundries winding on the energy dissipation slurry board, and the energy dissipation slurry board rotates and makes water flow can splash from the built -in area, can wash away the sundries blocked outside the screen net board, still can disperse the silt in water, avoid the first water hole and block, need not often clean the first water hole, and sundries can not wind on the energy dissipation slurry board, greatly reduced maintenance difficulty and maintenance cost.
[0022] 2. The utility model discloses the backflow board and rectangular through slot are arranged mutually interval, support block is set to be isomero triangular prism simultaneously, the vortex that produces beats on the support block, and the support block can change the direction of water flow, make it move towards the direction of rectangular through slot, play good effect of discharging silt, avoid silt accumulation, reduce maintenance cost.
[0023] 3. The utility model discloses the energy dissipation board both ends are equipped with the drainage angle, and the extension line of two adjacent drainage angles can intersect at the screen net board of the front row energy dissipation assembly, and the water flow that does not pass through the screen net board and is dissipated by the energy dissipation slurry board, after impacting on the drainage angle, the water flow is guided to the front row energy dissipation assembly and impacts the energy dissipation slurry board along the inclined drainage angle, and the kinetic energy of water flow is dissipated, and good energy dissipation effect is played. DRAWINGS
[0024] Fig. 1 It is the sectional view of a novel energy dissipation pool structure of the utility model;
[0025] Fig. 2 It is the plan view of a novel energy dissipation pool structure of the utility model.
[0026] In the drawing: 1-bed, 2-guiding strip, 3-drainage block, 4-screen net board, 5-turbulence blade, 6-energy dissipation board, 7-energy dissipation slurry board, 8-support block, 9-backflow block, 10-circular arc surface, 11-rectangular through slot, 12-first water hole, 13-energy dissipation bottom pool, 14-fixed shaft, 15-transition slope, 16-flood discharge slope, 17-drainage angle, 18-built -in area, 19-second water hole. DETAILED DESCRIPTION
[0027] In order to facilitate the person skilled in the art understanding, the utility model is further explained below in combination with the drawings.
[0028] As Figs. 1-2The novel stilling basin structure shown comprises a spillway slope 16 and a stilling bottom pool 13 arranged in a riverbed 1, the stilling bottom pool 13 being connected to the lower end of the spillway slope 16, and water flow can flow along the spillway slope 16 to the stilling bottom pool 13 to consume energy. A transition slope 15 is arranged at the connection between the spillway slope 16 and the stilling bottom pool 13, and the inclination angle of the transition slope 15 is smaller than that of the spillway slope 16. Since the spillway slope 16 has a large slope, a large amount of water flow flowing down from the spillway slope 16 will directly impact the connection between the stilling bottom pool 13 and the spillway slope 16, causing damage to the connection. Therefore, the transition slope 15 can prolong the service life of the connection and slow down the water flow speed.
[0029] The utility model discloses a plurality of guide strips 2 for guiding water flow to the stilling bottom pool 13 are arranged on the spillway slope 16, the guide strips 2 are parallel to the direction of water flow, and the guide strips 2 are equidistantly arranged on the spillway slope 16. When water flow flows out from the upper end of the spillway slope 16, the water flow will flow along the direction of the guide strips 2 under the action of the guide strips 2 from the upper end to the lower end of the spillway slope 16. The arrangement of the guide strips 2 can reduce the problem that the water flow is asymmetrically swung left and right due to improper spillway operation, thereby reducing the impact on the riverbed 1 on both sides and reducing the erosion of the riverbed 1, thereby playing a protective role.
[0030] The utility model discloses that a plurality of rows of staggered energy dissipation assemblies are arranged on the stilling bottom pool 13, and drainage blocks 3 are arranged on both sides of the riverbed 1, the drainage blocks 3 are located below the guide strips 2, the drainage blocks 3 can guide water flow to the area of the stilling bottom pool 13 where the energy dissipation assemblies are arranged, the water flow guided by the guide strips 2 is changed in direction to flow downward in parallel, the water flow is guided away from both sides of the riverbed 1 to impact the area where the energy dissipation assemblies are concentrated, the probability of the water flow directly impacting the energy dissipation assemblies is increased, and better energy dissipation effect is achieved.
[0031] In addition, the water flow on both sides can also be guided into the stilling bottom pool 13 to continue to scour the riverbed 1 on both sides of the stilling bottom pool 13, thereby reducing the damage of the water flow to the riverbed 1.
[0032] The utility model discloses that the energy dissipation assembly comprises a stilling plate 6 and a herringbone-shaped miscellaneous screen plate 4, the stilling plate 6 is provided with a first water flow hole 12 through which water flow can pass, the miscellaneous screen plate 4 is arranged on one side of the stilling plate 6 close to the spillway slope 16, the miscellaneous screen plate 4 and the stilling plate 6 jointly enclose a three-prism-shaped built-in area 18, a plurality of energy dissipation slabs 7 corresponding to the miscellaneous screen plate 4 are arranged on the stilling bottom pool 13, and the energy dissipation slabs 7 are located in the built-in area 18.
[0033] Specifically, the blocking screen 4 can block the large-volume impurities such as waterweeds in the water from the inside area 18, so as to avoid the impurities from winding around the energy-dissipation slab 7. In addition, the water flow impacting on the energy-dissipation slab 7 can make the energy-dissipation slab 7 rotate to disturb the water flow, the redirected water flow flows out from the inside area 18, and the impurities blocked outside the blocking screen 4 can be washed away. The energy-dissipation slab 7 can disperse the water flow when rotating, and can also disperse the impurities such as silt in the water, so that the amount of silt passing through the first water passing hole 12 of the energy-dissipation slab 6 is greatly reduced, the first water passing hole 12 is not blocked, and the first water passing hole 12 does not need to be cleaned frequently. Moreover, the energy-dissipation slab 7 is located in the inside area 18, and the impurities cannot wind around the energy-dissipation slab 7, so that the maintenance difficulty and cost are greatly reduced.
[0034] Specifically, the blocking screen 4 is in a herringbone shape and is installed on the water-impingement side of the energy-dissipation slab 6, and the plurality of energy-dissipation assemblies are arranged at intervals. Even if the blocking screen 4 is blocked by the impurities, the blocking screen 4 can still play a role in guiding and dispersing the water flow, the water flow is divided into several branches and is guided to the energy-dissipation assembly in front along the water flow direction, and the energy-dissipation effect is improved.
[0035] The energy-dissipation slab 7 of the utility model comprises a fixed shaft 14 and a plurality of rotatingly-installed turbulence vanes 5 on the fixed shaft 14, the lower end of the fixed shaft 14 is fixed on the energy-dissipation bottom pool 13, and the plurality of turbulence vanes 5 are equidistantly arranged on the fixed shaft 14. The turbulence vanes 5 are always not in contact with the blocking screen 4 and the energy-dissipation slab 6 when rotating, and the three are not interfered with each other.
[0036] The energy-dissipation slab 6 is provided with a flow guide angle 17 at both ends, the extension lines of two adjacent flow guide angles 17 can intersect at the blocking screen 4 of the front row of energy-dissipation assemblies, and the flow guide angle 17 guides the water flow to impact on the energy-dissipation slab 7 located on the downstream side. The water flow that does not directly pass through the blocking screen 4 and is not dissipated by the energy-dissipation slab 7 impacts on the flow guide angle 17 and then flows along the inclined flow guide angle 17 to the front row of energy-dissipation assemblies, and the energy-dissipation slab 7 impacts on the energy-dissipation slab 7 to dissipate the kinetic energy of the water flow.
[0037] Specifically, the energy-dissipation bottom pool 13 is provided with a reflux block 9 at the end far from the flood discharge slope 16, one side of the reflux block 9 close to the flood discharge slope 16 is provided with a circular arc surface 10 capable of guiding the water flow to generate vortex flow, the circular arc surface 10 has an upward arc curvature that continuously increases from the energy-dissipation bottom pool 13, and the direction of the top end of the arc is tangent to the horizontal plane.
[0038] The utility model is provided with a support block 8 on the energy-dissipation slab 6 close to the reflux block 9, the support block 8 is installed on the side of the energy-dissipation slab 6 close to the reflux block 9, the support block 8 is provided with a second water passing hole 19, the first water passing hole 12 on the energy-dissipation slab 6 can be in communication with the second water passing hole 19, the lower end of the reflux block 9 is provided with a plurality of rectangular through grooves 11, the rectangular through grooves 11 are staggered and arranged with the support block 8, the support block 8 is in a shape of an isosceles triangular prism, and the support block 8 can guide the impurities in the vortex flow into the rectangular through grooves 11.
[0039] Specifically, the water flow after layer by layer energy dissipation finally flows to the reflux block 9, the arc-shaped and the curvature increasing design of the reflux block 9 makes the water flow generate vortex after flowing through the reflux block 9, the vortex offsets certain energy of the water flow, and the vortex lifts the sediment near the reflux block 9, the sediment flows along the arc-shaped surface of the reflux block 9 with the water flow, the density of the sediment is greater than that of the water flow, so the sediment at the return position of the reflux block 9 is usually in the lower layer of the water flow, so the position of the rectangular through slot 11 is arranged at the lower end of the reflux block 9, the sediment flows to the downstream bank through the rectangular through slot 11 with part of the water flow, and the phenomenon of sediment accumulation near the reflux block 9 is reduced.
[0040] Specifically, the reflux plate and the rectangular through slot 11 are arranged at intervals, and the support block 8 is arranged in the shape of an isosceles triangular prism, the vortex generated by the reflux plate hits the support block 8, the support block 8 can change the direction of the water flow and make the water flow move towards the rectangular through slot 11, so that the effect of discharging sediment is good, and the sediment accumulation is avoided.
[0041] The utility model discloses a support block 8 is arranged on one side of the reflux plate 6 to avoid the impact of the vortex on the reflux plate 6, and the support block 8 can also support the reflux plate 6 to some extent, thereby prolonging the service life of the reflux plate 6.
[0042] It should be understood that the use of these embodiments is only for illustrating the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all these equivalent forms also fall within the protection scope defined by the appended claims of the present application.
Claims
1. A novel stilling basin structure, characterized in that, It includes a flood discharge slope (16) and a stilling basin (13) set in the riverbed. The stilling basin (13) is connected to the lower end of the flood discharge slope (16). Several rows of energy dissipation components are installed on the stilling basin (13). The energy dissipation component includes a stilling plate (6) and a herringbone-shaped debris-blocking mesh plate (4). The debris-blocking mesh plate (4) is installed on the side of the stilling plate (6) near the spillway slope (16). The debris-blocking mesh plate (4) and the stilling plate (6) together form a triangular prism-shaped inner area (18). Several energy dissipation slurry plates (7) corresponding one-to-one with the debris-blocking mesh plate (4) are installed on the stilling pool (13). The energy dissipation slurry plates (7) are located in the inner area (18). A counterflow block (9) is installed at the end of the stilling basin (13) away from the flood discharge slope (16). The side of the counterflow block (9) facing the flood discharge slope (16) is provided with an arc surface (10) that can guide the water flow to generate vortices. A support block (8) is installed on a row of stilling plates (6) near the counterflow block (9). The support block (8) is installed on the side of the stilling plate (6) near the counterflow block (9). The lower end of the counterflow block (9) is provided with several rectangular through slots (11). The rectangular through slots (11) and the support block (8) are arranged alternately. The support block (8) is a kind of isosceles triangular prism. The support block (8) can guide impurities in the eddy current into the rectangular through slots (11).
2. The novel stilling basin structure according to claim 1, characterized in that, The energy dissipation plate (6) and the support block (8) are respectively provided with a first water passage hole (12) and a second water passage hole (19) that can allow water to flow through. The first water passage hole (12) and the second water passage hole (19) can communicate with each other.
3. The novel stilling basin structure according to claim 1, characterized in that, Both ends of the energy dissipation plate (6) are provided with flow guide angles (17), which guide the water flow to impact the energy dissipation slurry plate (7) located downstream of it.
4. The novel stilling basin structure according to claim 1, characterized in that, A transition slope (15) is installed at the connection between the flood discharge slope (16) and the stilling basin (13), and the inclination angle of the transition slope (15) is smaller than that of the flood discharge slope (16).
5. The novel stilling basin structure according to claim 1, characterized in that, Several guide strips (2) are installed on the spillway slope (16) to guide the flow to the stilling basin (13).
6. The novel stilling basin structure according to claim 5, characterized in that, Diversion blocks (3) are installed on both sides of the riverbed. The diversion blocks (3) are located below the guide strip (2). The diversion blocks (3) can guide the water flow to the area where the energy dissipation components are installed in the stilling basin (13).
7. A novel stilling basin structure according to claim 5, characterized in that, The guide strips (2) are arranged at equal intervals on the flood discharge slope (16).
8. The novel stilling basin structure according to claim 1, characterized in that, The energy dissipation plate (7) includes a fixed shaft (14) and several turbulence blades (5) rotatably mounted on the fixed shaft (14). The lower end of the fixed shaft (14) is fixed on the energy dissipation basin (13).
9. A novel stilling basin structure according to claim 8, characterized in that, Several of the aforementioned turbulence blades (5) are arranged at equal intervals on the fixed shaft (14).
10. A novel stilling basin structure according to claim 1, characterized in that, The curvature of the arc surface (10) increases continuously from the stress-relief bottom pool (13) upwards, and the top of the arc surface (10) is tangent to the horizontal plane.