Pressure relief well and water flow energy dissipation method

Abstract

This invention relates to the field of municipal drainage technology, and more particularly to a pressure relief well and a water flow energy dissipation method. The pressure relief well includes an inlet pipe and an energy dissipation and anti-scour device; the outlet of the inlet pipe is located at the bottom of the well and faces upwards, and the anti-scour device is located at the outlet of the inlet pipe; the energy dissipation and anti-scour device includes an energy dissipation basin and an energy dissipation ring, the energy dissipation ring protruding upwards from the bottom of the well and surrounding the energy dissipation basin; the energy dissipation basin includes grid bars and at least two energy dissipation discs, the grid bars being arranged between the energy dissipation discs and between the energy dissipation discs and the bottom of the well, the diameter of the upper energy dissipation disc being larger than the diameter of the lower energy dissipation disc, and each energy dissipation disc having an energy dissipation hole. This invention solves the problem of water flow impact on drainage wells and extends the service life of drainage wells.

Description

Technical Field

[0001] This invention relates to the field of municipal drainage technology, and in particular to a pressure relief well and a method for dissipating energy from water flow. Background Technology

[0002] With urbanization, the number of municipal infrastructure projects is increasing year by year, which also means that the number of booster pump devices will increase accordingly. This is to allow urban sewage that fails to drain naturally to accumulate at the lowest point and then be pumped out. However, the increased number of booster pumps also increases the pressure on existing drainage wells, increasing the impact on the walls and causing greater wear and tear on the wells. This reduces the lifespan of drainage well-related facilities and increases unnecessary maintenance costs in municipal engineering projects. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a pressure relief well to solve the problem of water flow impact on drainage wells and extend the service life of drainage wells.

[0004] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0005] A pressure relief well includes an inlet pipe and an energy dissipation and anti-scour device. The outlet of the inlet pipe is located at the bottom of the well and faces upwards. The anti-scour device is located at the outlet of the inlet pipe. The energy dissipation and anti-scour device includes an energy dissipation basin and an energy dissipation ring. The energy dissipation ring protrudes upwards from the bottom of the well and surrounds the energy dissipation basin. The energy dissipation basin includes grid bars and at least two energy dissipation discs. The grid bars are arranged between the energy dissipation discs and between the energy dissipation discs and the bottom of the well. The diameter of the upper energy dissipation disc is larger than the diameter of the lower energy dissipation disc, and each energy dissipation disc has an energy dissipation hole.

[0006] Optionally, each of the energy dissipation plates is arranged horizontally, all energy dissipation plates are arranged vertically, and there are set gaps between the energy dissipation plates and between the bottommost energy dissipation plate and the bottom of the well. The energy dissipation holes opened on adjacent energy dissipation plates are staggered in the horizontal direction.

[0007] Optionally, the energy dissipation hole is circular, and the diameter of the energy dissipation hole is larger than the diameter of the drain pipe opening.

[0008] Optionally, the energy dissipation plate is a disc, including a first energy dissipation plate on the bottom side and a second energy dissipation plate located on the upper side of the first energy dissipation plate; the distance between the first energy dissipation plate and the inlet of the water inlet pipe is 0.5 to 1.5 times the radius of the water inlet pipe, and the diameter of the first energy dissipation plate is 1 to 2 times the diameter of the water inlet pipe; the distance between the second energy dissipation plate and the inlet of the water inlet pipe is 1 to 3 times the diameter of the water inlet pipe, and the diameter of the second energy dissipation plate is 1 to 3 times the diameter of the water inlet pipe.

[0009] Optionally, the distance between the first energy dissipation plate and the inlet of the water inlet is 1 time the radius of the water inlet, and the diameter of the first energy dissipation plate is 1.5 times the diameter of the water inlet. The distance between the second energy dissipation plate and the inlet of the water inlet is 2 times the diameter of the water inlet, and the diameter of the second energy dissipation plate is 2 times the diameter of the water inlet.

[0010] Optionally, the energy dissipation ring has a circular cross-section and a conical longitudinal section, with the tip of the conical section facing upwards, forming a conical surface on both the inner and outer sides of the tip.

[0011] Optionally, the radius of the energy dissipation ring is greater than 1.5 times the radius of the uppermost energy dissipation disk.

[0012] Optionally, the gap between the grid strips is 6 cm.

[0013] Optionally, a camera is installed at the top of the pressure relief well, and a positioning system is installed inside the pressure relief well.

[0014] This invention also provides a water flow energy dissipation method using the pressure relief well as described above. The water flows through the inlet pipe and is flushed onto the energy dissipation plate. The water flow repeatedly dissipates energy through the energy dissipation holes on the multi-layer energy dissipation plate, and then impacts the energy dissipation ring again through the energy dissipation holes or grid bars of the top energy dissipation plate for further energy dissipation.

[0015] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0016] 1. The pressure relief well of this invention utilizes the principle that water flow primarily impacts the upper multi-layered energy-dissipating discs of the energy-dissipating and anti-scour device repeatedly, and continuously dissipates energy through multiple energy-dissipating holes in the multi-layered energy-dissipating discs; a small amount of water flows through the gaps in the grid bars, dissipating energy and discharging; finally, it falls to the energy-dissipating ring, completing the final energy dissipation and preventing water flow from scouring the walls of inspection wells or other structures. The energy dissipation through the drainage pipe helps reduce the impact of pressurized water flow on the walls during drainage, thereby reducing daily wear and tear on the drainage well and extending its service life.

[0017] 2. Within a relatively small space, safely dissipate the kinetic energy of the pressurized flow in stormwater and sewage pipelines, ensuring proper connection between upstream and downstream water flow under normal circumstances. This guarantees the safety and durability of water pipelines, energy dissipation structures, and the urban water supply network, ensuring the normal and orderly operation of the city's water supply.

[0018] 3. It occupies a small area, is easy to construct, and has low maintenance difficulty. It is not only suitable for urban drainage pipe network systems, but also for depressurization of water supply systems where pressure flow is converted to gravity flow.

[0019] 4. The in-well camera can monitor the in-well operation status in real time, and the positioning system can quickly and easily locate the pressure relief well, enabling intelligent management and maintenance.

[0020] Advantages of additional aspects of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic top view of a pressure relief well provided in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the interior of a pressure relief well provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of an energy dissipation panel provided in an embodiment of the present invention;

[0025] In the diagram: 1. Inlet pipe; 2. Energy dissipation and anti-scour device; 21. Grille bar; 22. Energy dissipation plate; 23. Energy dissipation hole; 24. Energy dissipation ring; 25. Bolt; 3. Outlet pipe; 4. Camera;

[0026] The distances or dimensions between parts have been exaggerated to show their positions; the diagram is for illustrative purposes only. Detailed Implementation

[0027] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] As described in the background section, the increased number of booster pumps increases the pressure on existing urban drainage wells, intensifies the impact on walls, and consequently leads to greater wear and tear on the wells, reducing the lifespan of related facilities and increasing unnecessary maintenance costs in municipal engineering projects. To address the problem of water flow impact on drainage wells, this invention proposes a pressure relief well.

[0029] like Figure 1 As shown, one embodiment of the present invention proposes a pressure relief well, including an inlet pipe 1, an energy dissipation and anti-scour device 2, and an outlet pipe 3. The inlet pipe 1 is a sewage pressure outlet pipe 3 and an initial rainwater pressure outlet pipe 3. Figure 2 As shown, the outlet of the water inlet pipe 1 is located at the bottom of the well and faces upwards, and the anti-scour device is located at the outlet of the water inlet pipe 1; the energy dissipation and anti-scour device 2 includes an energy dissipation basin and an energy dissipation ring 24, the energy dissipation ring 24 protrudes upwards from the bottom of the well and surrounds the energy dissipation basin; the energy dissipation basin includes grid bars 21 and at least two energy dissipation discs 22, the grid bars 21 are arranged between the energy dissipation discs 22 and between the energy dissipation discs 22 and the bottom of the well, the diameter of the upper energy dissipation disc 22 is larger than the diameter of the lower energy dissipation disc 22, and each energy dissipation disc 22 is provided with an energy dissipation hole 23.

[0030] The pressure relief well of this invention utilizes the repeated impact of water flow on the upper multi-layered energy-dissipating disc of the energy-dissipating and anti-scour device 2, with continuous energy dissipation through multiple energy-dissipating holes 23 on the disc. A small amount of water flows through the gaps in the grid bars 21, dissipating energy and discharging. Finally, it falls onto the energy-dissipating ring 24, completing the final energy dissipation and preventing water flow from scouring the walls of the inspection well or other structures. The energy dissipation through the drainage pipe helps reduce the impact of pressurized water flow on the walls during drainage, thereby reducing daily wear and tear on the drainage well and extending its service life.

[0031] like Figure 2 As shown, each of the energy dissipation plates 22 is arranged horizontally, and all energy dissipation plates 22 are arranged vertically, with a set gap between each other and between the bottommost energy dissipation plate 22 and the bottom of the well. Each energy dissipation plate 22 is provided with one or more energy dissipation holes 23, which are circular holes penetrating the energy dissipation plate 22. The energy dissipation holes 23 on adjacent energy dissipation plates 22 are staggered in the horizontal direction, that is, the axes of the energy dissipation holes 23 on two adjacent energy dissipation plates 22 are not on the same vertical line. The diameter of the energy dissipation hole 23 is larger than the diameter of the drain pipe opening, that is, the opening area of ​​the energy dissipation hole 23 is larger than the area of ​​the drain pipe opening.

[0032] In this embodiment, the energy dissipation disk 22 is a disc (e.g., Figure 3 As shown), the energy dissipation disk has a two-layer structure (as shown). Figure 2 As shown, it includes a first energy dissipation plate on the bottom side and a second energy dissipation plate located above the first energy dissipation plate; the distance between the first energy dissipation plate and the inlet of the water inlet pipe 1 is 0.5 to 1.5 times the radius of the water inlet pipe 1, the diameter of the first energy dissipation plate is 1 to 2 times the diameter of the water inlet pipe 1, the distance between the second energy dissipation plate and the inlet of the water inlet pipe 1 is 1 to 3 times the diameter of the water inlet pipe 1, and the diameter of the second energy dissipation plate is 1 to 3 times the diameter of the water inlet pipe 1.

[0033] For example: the distance between the first energy dissipation plate and the inlet of water inlet pipe 1 is 0.5 times, 1 times, and 1.5 times the radius of water inlet pipe 1, and the distance between the first energy dissipation plate and the inlet of water inlet pipe 1 is 1 times, 1.5 times, and 2 times the diameter of water inlet pipe 1, and the distance between the second energy dissipation plate and the inlet of water inlet pipe 1 is 1 times, 2 times, and 3 times the diameter of water inlet pipe 1, and the distance between the second energy dissipation plate and the inlet of water inlet pipe 1 is 1 times, 2 times, and 3 times the diameter of water inlet pipe 1.

[0034] By comparing different data, the optimal operating data was determined to be: the distance between the first energy dissipation plate and the inlet of water inlet pipe 1 should be equal to the radius of water inlet pipe 1, and the diameter of the first energy dissipation plate should be equal to 1.5 times the diameter of water inlet pipe 1. The optimal operating data is: the distance between the second energy dissipation plate and the inlet of water inlet pipe 1 should be equal to 2 times the diameter of water inlet pipe 1, and the diameter of the second energy dissipation plate should be equal to 2 times the diameter of water inlet pipe 1.

[0035] The energy-dissipating ring 24 has a circular cross-section, meaning it appears as a ring when viewed from above. The longitudinal section of the energy-dissipating ring 24 is conical, with the apex pointing upwards, forming conical surfaces on both the inner and outer sides of the apex. The energy-dissipating ring 24 is a steel plate structure, fixed to the perimeter of the energy-dissipating basin by bolts 25. The radius of the energy-dissipating ring 24 is greater than 1.5 times the radius of the uppermost energy-dissipating plate 22, where the radius refers to the radius of the circle formed by the apex of the energy-dissipating ring 24.

[0036] The grid bars 21 are evenly distributed around the perimeter, with a gap of 6 cm between them. The grid bars 21 are pre-embedded steel bars that overlap with the bottom steel bars of the pool for a secure connection.

[0037] Furthermore, a camera 4 is installed at the top of the pressure relief well for real-time online monitoring. A positioning system, such as GPS, is also installed inside the pressure relief well.

[0038] The pressure relief well of this invention is simple, convenient, and feasible in structure. It has a good energy dissipation effect on sewage pressure outlet pipe 3 and initial rainwater pressure outlet pipe 3, greatly reducing the impact of pressurized water flow on the wall during drainage, thereby reducing the daily wear and tear of the drainage well. A camera 4 and a positioning system are installed inside the well, which can monitor the operating status inside the well in real time, quickly locate the pressure relief well, and realize intelligent management and maintenance.

[0039] The above-mentioned water flow energy dissipation method for pressure relief wells is as follows: water flows through the inlet pipe 1 and is flushed onto the energy dissipation plate 22. The water flow repeatedly dissipates energy through the energy dissipation holes 23 on the multi-layer energy dissipation plate 22, and then impacts the energy dissipation ring 24 again through the energy dissipation holes 23 or the grid strips 21 of the top energy dissipation plate 22 for further energy dissipation.

[0040] The present invention has the following technical effects:

[0041] 1. The pressure relief well of this invention utilizes the principle that water flow primarily impacts the upper multi-layered energy-dissipating discs of the energy-dissipating and anti-scour device repeatedly, and continuously dissipates energy through multiple energy-dissipating holes in the multi-layered energy-dissipating discs; a small amount of water flows through the gaps in the grid bars, dissipating energy and discharging; finally, it falls to the energy-dissipating ring, completing the final energy dissipation and preventing water flow from scouring the walls of inspection wells or other structures. The energy dissipation through the drainage pipe helps reduce the impact of pressurized water flow on the walls during drainage, thereby reducing daily wear and tear on the drainage well and extending its service life.

[0042] 2. Within a relatively small space, safely dissipate the kinetic energy of the pressurized flow in stormwater and sewage pipelines, ensuring proper connection between upstream and downstream water flow under normal circumstances. This guarantees the safety and durability of water pipelines, energy dissipation structures, and the urban water supply network, ensuring the normal and orderly operation of the city's water supply.

[0043] 3. It occupies a small area, is easy to construct, and has low maintenance difficulty. It is not only suitable for urban drainage pipe network systems, but also for depressurization of water supply systems where pressure flow is converted to gravity flow.

[0044] 4. The in-well camera can monitor the in-well operation status in real time, and the positioning system can quickly and easily locate the pressure relief well, enabling intelligent management and maintenance.

[0045] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A pressure relief well, characterized in that, Including the water inlet pipe and energy dissipation and anti-collision device; The outlet of the water inlet pipe is located at the bottom of the well and faces upwards, and the anti-surge device is located at the outlet of the water inlet pipe. The energy dissipation and anti-collision device includes an energy dissipation basin and an energy dissipation ring. The energy dissipation ring protrudes upward from the bottom of the well and surrounds the energy dissipation basin. The energy dissipation basin includes grid bars and at least two energy dissipation discs. The grid bars are arranged between the energy dissipation discs and between the energy dissipation discs and the bottom of the well. The diameter of the upper energy dissipation disc is larger than the diameter of the lower energy dissipation disc, and each energy dissipation disc has an energy dissipation hole. The energy dissipation holes on adjacent energy dissipation plates are staggered in the horizontal direction; the diameter of the energy dissipation holes is larger than the diameter of the drain pipe opening of the pressure relief well. The energy dissipation ring has a circular cross-section and a conical longitudinal section, with the tip of the conical section facing upwards, forming a conical surface on both the inner and outer sides of the tip.

2. The pressure relief well as described in claim 1, characterized in that, Each of the energy dissipation plates is arranged horizontally, all energy dissipation plates are arranged vertically, and there are set gaps between the energy dissipation plates and between the bottom energy dissipation plate and the bottom of the well.

3. The pressure relief well as described in claim 2, characterized in that, The energy dissipation hole is circular.

4. The pressure relief well as described in claim 1, characterized in that, The energy dissipation plate is a disc, including a first energy dissipation plate on the bottom side and a second energy dissipation plate located on the upper side of the first energy dissipation plate; the distance between the first energy dissipation plate and the inlet of the water inlet pipe is 0.5 to 1.5 times the radius of the water inlet pipe, and the diameter of the first energy dissipation plate is 1 to 2 times the diameter of the water inlet pipe; the distance between the second energy dissipation plate and the inlet of the water inlet pipe is 1 to 3 times the diameter of the water inlet pipe, and the diameter of the second energy dissipation plate is 1 to 3 times the diameter of the water inlet pipe.

5. The pressure relief well as described in claim 4, characterized in that, The distance between the first energy dissipation plate and the inlet of the water inlet is 1 time the radius of the water inlet, and the diameter of the first energy dissipation plate is 1.5 times the diameter of the water inlet. The distance between the second energy dissipation plate and the inlet of the water inlet is 2 times the diameter of the water inlet, and the diameter of the second energy dissipation plate is 2 times the diameter of the water inlet.

6. The pressure relief well as described in claim 5, characterized in that, The radius of the energy dissipation ring is greater than 1.5 times the radius of the uppermost energy dissipation disk; The radius of the energy dissipation ring is the radius of the circle formed by the tips of the energy dissipation ring.

7. The pressure relief well as described in claim 1, characterized in that, The gap between the grid bars is 6cm.

8. The pressure relief well as described in claim 1, characterized in that, A camera is installed at the top of the pressure relief well, and a positioning system is installed inside the pressure relief well.

9. A method for dissipating energy from water flow using a pressure relief well as described in any one of claims 1-8, characterized in that, Water flows through the inlet pipe and washes onto the energy dissipation plate. The water repeatedly dissipates energy through the energy dissipation holes on the multi-layer energy dissipation plate, and then impacts the energy dissipation ring again through the energy dissipation holes or grid bars of the top energy dissipation plate for further energy dissipation.

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