A stilling basin structure with buffering and energy dissipation functions

Abstract

The utility model discloses a kind of energy-dissipation basin structures with buffering energy-dissipation function, including vertical pool body, vertical pool body top is connected with inlet conduit, vertical pool body side portion is equipped with with its intercommunication drain conduit, the height where drain conduit is located is greater than the height of vertical pool body inner chamber bottom;The inner chamber upper portion of vertical pool body is installed with the buffering ring and buffer block of group setting, buffer block is located in the inside of buffering ring, buffering ring is fixedly installed on the inner wall of vertical pool body, buffer block is installed on the support column of vertical structure, and water flow passage is formed between buffering ring and buffer block;The inner chamber bottom of vertical pool body is installed with multiple buffer plates being set in longitudinal direction and being stacked in layers.This energy-dissipation basin structure provided by the utility model gradually consumes water flow kinetic energy through the cooperation of multistage energy-dissipation structure, significantly improves energy-dissipation effect, converts high-speed water flow into stable flow, and avoids the damage of direct impact on structure.

Description

Technical Field

[0001] This utility model relates to a stilling pool structure with buffering and energy dissipation functions, belonging to the technical field of urban drainage systems. Background Technology

[0002] A vertical shaft is a well-shaped pipe with upright walls. It has been widely used as the water intake type for deep drainage tunnels. Its function is to concentrate shallow surface water and introduce it into deep tunnels. It occupies a small area, but the water flow is highly concentrated when the vertical shaft discharges. Effective energy dissipation methods must be adopted to dissipate energy. Otherwise, the water flow directly falling into the vertical shaft will generate huge kinetic energy, which will have an adverse effect on the bottom plate and the side walls of the vertical shaft, or even cause structural damage.

[0003] Existing energy dissipation technologies for vertical shafts mostly employ vortex-type or single-stage baffle structures. However, practical experience has shown that the following technical problems still exist: There is a risk of damage from concentrated energy impacts; swirling energy dissipation is prone to high-speed scouring and cavitation erosion under high water heads, causing severe impacts on the well wall and bottom plate; while baffle-type energy dissipation achieves staged drop, it easily forms S-shaped flow adhering to the wall, leading to energy accumulation and impact on the lower structure. Existing energy dissipation structures generally suffer from single-function problems, often resulting in insufficient energy dissipation and a large amount of residual water energy, which may still cause erosion or vibration to downstream pipelines.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] This invention addresses the shortcomings of the prior art by providing a stilling pool structure with buffering and energy dissipation functions. Through the coordination of multiple energy dissipation structures, the kinetic energy of the water flow is gradually consumed, significantly improving the energy dissipation effect and transforming high-speed water flow into stable flow, thus avoiding direct impact damage to the structure.

[0006] To solve the above technical problems, the present invention adopts the following technical solution: A stilling pool structure with buffering and energy dissipation function includes a vertical pool body, the top of which is connected to a water inlet pipe, and a drainage pipe connected to it on the side of the vertical pool body. The height of the drainage pipe is greater than the height of the bottom of the inner cavity of the vertical pool body. The upper part of the inner cavity of the vertical pool is equipped with a group of buffer rings and buffer blocks. The buffer blocks are located inside the buffer rings. The buffer rings are fixedly installed on the inner wall of the vertical pool, and the buffer blocks are installed on the support columns of the vertical structure. A water flow channel is formed between the buffer rings and the buffer blocks. The bottom of the inner cavity of the vertical pool is equipped with multiple buffer plates stacked longitudinally.

[0007] Furthermore, the buffer ring is fixedly installed in the vertical pool body by a pin, which passes through the side wall of the vertical pool body.

[0008] Furthermore, the buffer ring has multiple locating pin holes evenly distributed circumferentially, which are arranged laterally and are used for insertion of the inner end of the pin shaft.

[0009] Furthermore, the buffer ring has an inner arc-shaped surface A, which has a structure that is larger at the top and smaller at the bottom. The bottom of the inner arc-shaped surface A has a circular flow hole, and the support column passes through the flow hole. A water flow channel is formed between the outer wall of the support column and the flow hole.

[0010] Furthermore, the support column is fixed to the bottom of the vertical pool in a vertical direction.

[0011] Furthermore, the buffer block is inserted through and fixed to the upper part of the support column body, and the upper and lower sides of the buffer block are respectively provided with an inner arc-shaped surface B and an outer arc-shaped surface.

[0012] Furthermore, a water storage tank is formed between the inner arc-shaped surface B and the support column, and a water flow channel is formed between the outer arc-shaped surface of the buffer block and the inner arc-shaped surface A of the buffer ring.

[0013] Furthermore, the buffer plate consists of an outer annular support portion and an inner recess, with the annular support portion and the recess being an integral structure.

[0014] Furthermore, a positioning step is provided below the connection between the annular support and the recess.

[0015] Furthermore, the recess is provided with openings.

[0016] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: This utility model adopts a multi-stage energy dissipation system. The first stage uses vortex energy dissipation to precisely guide the water flow to disperse. The second stage uses inter-plate turbulence energy dissipation to dissipate the remaining energy layer by layer. The third stage uses water cushion energy dissipation. After three stages of energy dissipation, the energy dissipation effect is significant, the water flow velocity is greatly reduced, and it can flow smoothly into the drainage pipe, avoiding structural impact and noise vibration, and extending the service life of the vertical shaft. Components such as buffer plates and buffer blocks are all independent units, which can be replaced individually when damaged, making them highly maintainable and reducing long-term costs. Multi-stage energy dissipation systems can handle water flows with high drops and large volumes, and have a wide range of applications.

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the installation of the buffer ring and buffer block; Figure 3 This is a schematic diagram of the buffer plate.

[0019] In the figure, 1-vertical pool body, 2-drainage pipe, 3-buffer ring, 31-inner arc surface A, 32-flow hole, 33-positioning pin hole, 4-pin shaft, 5-buffer block, 51-inner arc surface B, 52-outer arc surface, 6-support column, 7-buffer plate, 71-ring support part, 72-recess, 73-positioning step. Detailed Implementation

[0020] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0021] like Figures 1-3 As shown in the figure, this utility model provides a stilling pool structure with buffering and energy dissipation function, including a vertical pool body 1, the top of the vertical pool body 1 is connected to a water inlet pipe, and a drainage pipe 2 connected to it is provided on the side of the vertical pool body 1. The height of the drainage pipe 2 is greater than the height of the bottom of the inner cavity of the vertical pool body 1.

[0022] The upper part of the inner cavity of the vertical pool 1 is equipped with a group of buffer rings 3 and buffer blocks 5. The buffer blocks 5 are located inside the buffer rings 3. The buffer rings 3 are fixedly installed on the inner wall of the vertical pool 1, and the buffer blocks 5 are installed on the support columns 6 of the vertical structure. A water flow channel is formed between the buffer rings 3 and the buffer blocks 5. Multiple buffer plates 7 are installed at the bottom of the inner cavity of the vertical pool 1, stacked longitudinally. The water flow, after being energy-dissipated and buffered by the buffer rings 3 and the buffer blocks 5, impacts the buffer plates 7 and flows into the drainage pipe 2 after being energy-dissipated by the buffer plates 7.

[0023] The buffer ring 3 is fixedly installed at a specified height on the vertical pool body 1 by means of a pin 4. The pin 4 passes through the side wall of the vertical pool body 1. The buffer ring 3 adopts a detachable installation structure, which is convenient for later maintenance.

[0024] The buffer ring 3 has multiple locating pin holes 33 evenly distributed around its circumference. The locating pin holes 33 are arranged laterally and are used for insertion into the inner end of the pin shaft 4.

[0025] The buffer ring 3 has an inner arc-shaped surface A31. The inner arc-shaped surface A31 has a structure that is larger at the top and smaller at the bottom. The bottom of the inner arc-shaped surface A31 has a circular flow hole 32. The support column 6 passes through the flow hole 32, and a water flow channel is formed between the outer wall of the support column 6 and the flow hole 32.

[0026] The support column 6 is fixed to the bottom of the vertical pool body 1 in a vertical direction.

[0027] The buffer block 5 is inserted through and fixed to the upper part of the main body of the support column 6. The upper and lower sides of the buffer block 5 are respectively provided with an inner arc surface B51 and an outer arc surface 52. The inner arc surface B51 and the support column 6 form a water storage tank, and the outer arc surface 52 of the buffer block 5 and the inner arc surface A31 of the buffer ring 3 form a water flow channel.

[0028] The buffer plate 7 consists of an outer annular support portion 71 and an inner recess 72, with the annular support portion 71 and the recess 72 forming an integral structure. A positioning step 73 is provided below the connection between the annular support portion 71 and the recess 72. The positioning step 73 facilitates the stacking of adjacent buffer plates 7.

[0029] The recess 72 is provided with openings for energy dissipation.

[0030] The specific working principle of this utility model is as follows: In the first stage of vortex energy dissipation, the high-speed water flow vertically impacts the buffer block 5 located in the center from the inlet pipe. The buffer block 5 smoothly guides the vertically downward water flow to the surrounding areas. The water flow guided to the surrounding areas immediately enters the annular channel between the inner arc surface A31 of the buffer ring 3 and the outer arc surface 52 of the buffer block 5, where it undergoes intense friction and collision. Most of its kinetic energy is converted into heat energy and consumed in this stage through vortex turbulence. The water storage tank formed by the inner arc surface B51 of the buffer block 5 and the support column 6 can hold a portion of the water, forming a local dead water zone. This helps to stabilize the flow and consume more energy through the internal friction of the water.

[0031] Second-stage interplate turbulent energy dissipation: After the first stage of energy dissipation, the water flows downward and impacts the stacked buffer plates 7. Since the buffer plates 7 are stacked, the water needs to flow in a tortuous manner between the multiple plates. Each time the water passes through a plate, it will be blocked, dispersed and impacted, and the energy will be consumed layer by layer.

[0032] The third-stage water cushion energy dissipation: The bottom of the inner cavity of the vertical pool 1 will accumulate some water, forming a water cushion. The water flowing down from the upper layer impacts this water cushion, using the huge resistance of the water itself to buffer and absorb energy.

[0033] After three stages of energy dissipation, the water flow speed has been greatly reduced, allowing it to flow smoothly into drainage pipe 2 and be safely discharged.

[0034] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A stilling basin structure having a buffer energy dissipation function, characterized by: It includes a vertical pool body (1), the top of which is connected to the water inlet pipe, and a drainage pipe (2) connected to it on the side of the vertical pool body (1). The height of the drainage pipe (2) is greater than the height of the bottom of the inner cavity of the vertical pool body (1). The upper part of the inner cavity of the vertical pool (1) is equipped with a set of buffer rings (3) and buffer blocks (5). The buffer blocks (5) are located inside the buffer rings (3). The buffer rings (3) are fixedly installed on the inner wall of the vertical pool (1). The buffer blocks (5) are installed on the support columns (6) of the vertical structure. A water flow channel is formed between the buffer rings (3) and the buffer blocks (5). The bottom of the inner cavity of the vertical pool (1) is equipped with multiple buffer plates (7) stacked longitudinally.

2. The stilling basin structure having a buffer energy dissipation function according to claim 1, characterized in that: The buffer ring (3) is fixedly installed inside the vertical pool body (1) by a pin (4), and the pin (4) passes through the side wall of the vertical pool body (1).

3. The stilling basin structure having a buffer energy dissipation function according to claim 2, characterized in that: The buffer ring (3) has multiple locating pin holes (33) evenly distributed around its circumference. The locating pin holes (33) are arranged in the transverse direction and are used for the insertion of the inner end of the pin shaft (4).

4. The stilling basin structure with buffering and energy dissipation function as described in claim 1, characterized in that: The buffer ring (3) has an inner arc surface A (31). The inner arc surface A (31) adopts a structure that is larger at the top and smaller at the bottom. The bottom of the inner arc surface A (31) has a circular flow hole (32). The support column (6) passes through the flow hole (32). A water flow channel is formed between the outer wall of the support column (6) and the flow hole (32).

5. The stilling basin structure having a buffer energy dissipation function according to claim 1, wherein: The support column (6) is fixed to the bottom of the vertical pool body (1) in the vertical direction.

6. The stilling basin structure having a buffer energy dissipation function according to claim 1, wherein: The buffer block (5) is inserted through and fixed to the upper part of the main body of the support column (6). The upper and lower sides of the buffer block (5) are respectively provided with an inner arc surface B (51) and an outer arc surface (52).

7. The stilling basin structure having a buffer energy-dissipating function according to claim 6, wherein: A water storage tank is formed between the inner arc surface B (51) and the support column (6), and a water flow channel is formed between the outer arc surface (52) of the buffer block (5) and the inner arc surface A (31) of the buffer ring (3).

8. The stilling basin structure having a buffer energy dissipation function according to claim 1, characterized in that: The buffer plate (7) consists of an outer annular support (71) and an inner recess (72), with the annular support (71) and the recess (72) being an integral structure.

9. The stilling basin structure having a buffer energy-dissipating function according to claim 8, characterized in that: A positioning step (73) is provided below the connection between the annular support (71) and the recess (72).

10. The stilling basin structure having a buffer energy-dissipating function according to claim 9, wherein: The recess (72) is provided with openings.

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