Large-height-difference self-pressure pipeline upper energy dissipation facility
The energy dissipation facility on large height difference self-pressure pipelines addresses cavitation and inadequate pressure reduction by using a drainage well with anti-collision and shielding structures to reduce both dynamic and static pressures, enhancing protection and extending the facility's lifespan.
Patent Information
- Application Number
- CN202420540269.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-20
AI Technical Summary
Existing energy dissipation facilities on large height difference self-pressure pipelines face high maintenance costs and shortened service life due to cavitation and inadequate protection of the well walls from water impact, which cannot effectively reduce both dynamic and static water pressures.
An energy dissipation facility with a drainage well, anti-collision structure, and shielding structure, featuring inclined blocks and porous pipes to disperse water flow, reducing both dynamic and static pressures and protecting the well walls from cavitation.
The facility reduces maintenance costs and extends the service life by providing comprehensive protection against water impact, effectively managing both dynamic and static pressures in self-pressure pipelines.
Smart Images
Figure CN222209496U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of energy dissipation facilities on large height difference self-pressure pipelines, in particular to an energy dissipation facility on large height difference self-pressure pipelines. Background Art
[0002] In the process of pipeline water transportation, due to the large terrain height difference and long pipeline water transportation distance, the dynamic and static water pressure in the pipe is large during the operation of the pipeline, resulting in safe operation of the pipeline. It is necessary to increase the pipeline pressure level to ensure safe operation. In this way, the project investment is too high, the economic effect of the project is poor, and the cost of pipeline operation and maintenance is high in the later stage. At present, hydraulic mechanical pressure reducing valves are usually used to reduce the pressure of pipeline working pressure. However, the pressure reducing valve can only accurately reduce the dynamic water pressure on the pipeline, but cannot reduce the static water pressure. The designed product adopts deep cylinder energy dissipation well and multi-hole outflow energy dissipation, which solves the problems of high static water pressure in the pipeline, unsafe pipeline operation and high project investment. However, in the use of energy dissipation facilities on large height difference self-pressure pipelines, water flow will impact the inner wall of the well, and only the four corners and the bottom of the well are used for anti-scouring. When the water flow impacts the inner wall of the well, bubbles will be formed, and the bubble rupture will form cavitation. Long-term cavitation reaction will damage the well wall, increasing the later maintenance cost of energy dissipation facilities on large height difference self-pressure pipelines and shortening the service life of energy dissipation facilities on large height difference self-pressure pipelines. Utility Model Content
[0003] The utility model aims to solve the problem of increasing the later maintenance cost of energy dissipation facilities on large height difference self-pressure pipelines and shortening the service life of energy dissipation facilities on large height difference self-pressure pipelines, and proposes an energy dissipation facility on a large height difference self-pressure pipeline.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] An energy dissipation facility on a large height difference self-pressure pipeline is designed, comprising a drainage well and a bottom plate, wherein the bottom of the inner wall of the drainage well is fixedly connected to the bottom of the inner wall of the bottom plate, an anti-collision structure is connected below the inner wall of the drainage well, a support plate is fixedly connected to the upper left side of the drainage well, a curved pipe is connected to the upper left side of the drainage well, a first concrete wall is fixedly connected to the left side of the outer wall of the curved pipe, the bottom of the first concrete wall is fixedly connected to the top of the support plate, a straight pipe is connected to the right side of the drainage well, a shielding structure is connected to the top of the drainage well, a second concrete wall is fixedly connected to the right side above the inner wall of the drainage well, and circular pipes are connected to the front and rear of the outer wall of the second concrete wall respectively.
[0006] Preferably, the anti-impact structure includes a bracket and a first inclined block, the outer wall of the bracket is fixedly connected to the lower part of the inner wall of the drainage well, the inner wall of the bracket is fixedly connected to the outer side of the first inclined block, the front and rear sides of the inner wall of the bracket are respectively fixedly connected to the second inclined blocks, and the top of the bracket is fixedly connected to a bent rod.
[0007] Preferably, the bottom of the curved pipe is connected to a porous pipe, and the porous pipe is located below the inner wall of the drainage well.
[0008] Preferably, the shielding structure includes a top cover and a weight block, the bottom of the top cover fits with the top of the drainage well, the left side of the top of the top cover is plugged into the outer wall of the weight block, the top of the weight block is processed with a groove, and the top of the inner wall of the groove is fixed with a straight plate.
[0009] Preferably, the bottom of the outer wall of the weight block is plugged into the top notch of the first concrete wall.
[0010] Preferably, the right side of the inner wall of the top cover fits with the right top of the drainage well.
[0011] The utility model proposes an energy dissipation facility on a large height difference self-pressure pipeline, which has the beneficial effect that the water source flowing out through the porous pipe in the anti-impact structure will impact the first inclined block and the second inclined block, and the bubbles formed by the impact of the water source will contact the first inclined block and the second inclined block after bursting, forming protection on the four sides of the well wall, changing the original four-corner anti-impact protection, making the anti-impact more comprehensive, reducing the later maintenance cost of the energy dissipation facility on the large height difference self-pressure pipeline, and ensuring the service life of the energy dissipation facility on the large height difference self-pressure pipeline. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of the utility model;
[0013] Figure 2 for Figure 1 Schematic diagram of the connection relationship between the drainage well, the support plate and the first concrete wall;
[0014] Figure 3 for Figure 2 The structural diagram of A in the figure;
[0015] Figure 4 for Figure 1 A schematic diagram of the connection relationship between the middle bracket, the first oblique block and the second oblique block;
[0016] Figure 5 for Figure 1 Schematic diagram of the connection relationship between the middle elbow and the porous pipe;
[0017] Figure 6 for Figure 1 Schematic diagram of the connection relationship between the middle curved pipe and the mesh plate.
[0018] In the figure: 1, drainage well, 2, anti-collision structure, 201, bracket, 202, first inclined block, 203, second inclined block, 204, bent rod, 3, shielding structure, 301, top cover, 302, weight block, 303, groove, 304, straight plate, 4, bottom plate, 5, bent pipe, 6, support plate, 7, first concrete wall, 8, second concrete wall, 9, round pipe, 10, straight pipe, 11, curved pipe, 12, mesh plate, 13, porous pipe. DETAILED DESCRIPTION
[0019] The utility model is further described below in conjunction with the accompanying drawings:
[0020] Embodiment 1:
[0021] See also Figure 1-6 In the present embodiment, an energy dissipation facility on a self-pressure pipeline with a large height difference comprises a drainage well 1 and a bottom plate 4. The bottom of the inner wall of the drainage well 1 is fixedly connected to the bottom of the inner wall of the bottom plate 4. The bottom plate 4 is made of concrete to prevent water from directly impacting the bottom of the inner wall of the drainage well 1. An anti-collision structure 2 is connected to the lower part of the inner wall of the drainage well 1. A support plate 6 is fixedly connected to the upper left side of the drainage well 1. The support plate 6 is made of concrete. A curved pipe 5 is connected to the upper left side of the drainage well 1. A first concrete wall 7 is fixedly connected to the left side of the outer wall of the curved pipe 5. Concrete is concrete, so the first concrete wall 7 is a concrete wall. The bottom of the first concrete wall 7 is fixedly connected to the top of the support plate 6. A straight pipe 10 is connected to the right side of the drainage well 1. A shielding structure 3 is connected to the top of the drainage well 1. A second concrete wall 8 is fixedly connected to the right side of the upper inner wall of the drainage well 1. Similarly, the second concrete wall 8 is also a concrete wall. The outer walls of the second concrete wall 8 are connected to circular pipes 9 at the front and back, respectively.
[0022] The anti-collision structure 2 includes a bracket 201 and a first inclined block 202. The outer wall of the bracket 201 is fixedly connected to the lower part of the inner wall of the drainage well 1. The inner wall of the bracket 201 is fixedly connected to the outer side of the first inclined block 202. The first inclined block 202 and the second inclined block 203 are both made of concrete, which can prevent the water source from directly impacting the well wall. The second inclined block 203 is fixedly connected to the front and rear sides of the inner wall of the bracket 201 respectively. A bent rod 204 is fixedly connected to the top of the bracket 201. The bent rod 204 can be hung with an external hook to increase the safety fulcrum for maintenance personnel.
[0023] The water source flowing out through the porous pipe 13 in the anti-impact structure 2 will impact the first inclined block 202 and the second inclined block 203. After the bubbles formed by the water source impact burst, they will contact the first inclined block 202 and the second inclined block 203, forming protection on the four sides of the well wall, changing the original four-corner anti-impact protection, making the anti-impact more comprehensive, reducing the later maintenance cost of the energy dissipation facilities on the large height difference self-pressure pipeline, and ensuring the service life of the energy dissipation facilities on the large height difference self-pressure pipeline.
[0024] The bottom of the curved pipe 5 is connected to the porous tube 13, and the porous tube 13 is located below the inner wall of the drainage well 1. The shielding structure 3 includes a top cover 301 and a weight block 302. The bottom of the top cover 301 fits with the top of the drainage well 1, and the left side of the top of the top cover 301 is plugged into the outer wall of the weight block 302. The weight block needs to be taken out with the help of an external hook device. A groove 303 is processed on the top of the weight block 302, and a straight plate 304 is fixed to the top of the inner wall of the groove 303. The bottom of the outer wall of the weight block 302 is plugged into the top notch of the first concrete wall 7. After the weight block 302 is plugged into the notch on the top of the first concrete wall 7, it plays a positioning role for the top cover 301. The right side of the inner wall of the top cover 301 fits with the top right side of the drainage well 1.
[0025] Working principle:
[0026] Energy dissipation work of energy dissipation facilities on large height difference self-pressure pipelines:
[0027] The water source enters at the left side of the curved pipe 5 and is finally discharged at the porous pipe 13. The porous pipe 13 disperses the falling water flow and reduces the pressure of the water source. The water source flowing out of the porous pipe 13 will impact the first inclined block 202 and the second inclined block 203. The bubbles formed by the impact of the water source will contact the first inclined block 202 and the second inclined block 203 after bursting, forming protection for the four sides of the well wall. The directly falling water source will impact the bottom plate 4, thereby reducing the dynamic pressure. The water source will gradually increase on the inner wall of the drainage well and finally reach the circular pipe 9. The water source is discharged to the right side of the second concrete wall 8 through the circular pipe 9. When the water level reaches the position of the straight pipe 10, the water source will be discharged to the outside through the straight pipe 10, thereby reducing the static pressure and completing the energy dissipation.
[0028] Internal inspection of drainage well:
[0029] The external hooking device enters the groove 303 and is hooked with the straight plate 304 at the same time. Then the hooking device pulls upward with force to move the straight plate 304 upward, which will move the weight block 302 upward, so that the outer wall of the weight block 302 is detached from the top of the first concrete wall 7 and the top cover 301, and then the top cover 301 is pushed to the right to gradually detach from the top of the drainage well 1, and then the interior of the drainage well can be inspected.
[0030] Embodiment 2:
[0031] See also Figure 1-6 In this embodiment, an energy dissipation facility on a large height difference self-pressure pipeline also includes a curved pipe 11 and a mesh plate 12. The bottom of the curved pipe 11 is connected to the left side of the top cover 301, and the right side of the curved pipe 11 is fixedly connected to the left side of the mesh plate 12.
[0032] Working principle:
[0033] The curved pipe 11 ventilates the interior of the drainage well 1 to ensure that the air pressure inside and outside the drainage well is consistent. The mesh plate 12 shields the inlet of the curved pipe 11 to prevent birds from entering the curved pipe 11.
[0034] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.
Claims
1. An energy dissipation facility on a large height difference self-pressure pipeline, comprising a drainage well (1) and a bottom plate (4), characterized in that: The bottom of the inner wall of the drainage well (1) is fixedly connected to the bottom of the inner wall of the bottom plate (4); an anti-collision structure (2) is connected to the bottom of the inner wall of the drainage well (1); a support plate (6) is fixedly connected to the upper left side of the drainage well (1); a curved pipe (5) is connected to the upper left side of the drainage well (1); a first concrete wall (7) is fixedly connected to the left side of the outer wall of the curved pipe (5); the bottom of the first concrete wall (7) is fixedly connected to the top of the support plate (6); a straight pipe (10) is connected to the right side of the drainage well (1); a shielding structure (3) is connected to the top of the drainage well (1); a second concrete wall (8) is fixedly connected to the right side of the upper inner wall of the drainage well (1); and circular pipes (9) are connected to the front and rear of the outer wall of the second concrete wall (8).
2. The energy dissipation facility on a large height difference self-pressure pipeline according to claim 1 is characterized by: The anti-collision structure (2) comprises a bracket (201) and a first inclined block (202); the outer wall of the bracket (201) is fixedly connected to the lower part of the inner wall of the drainage well (1); the inner wall of the bracket (201) is fixedly connected to the outer side of the first inclined block (202); the front and rear sides of the inner wall of the bracket (201) are respectively fixedly connected to second inclined blocks (203); and the top of the bracket (201) is fixedly connected to a bent rod (204).
3. The energy dissipation facility on a large height difference self-pressure pipeline according to claim 1 is characterized by: The bottom of the curved pipe (5) is connected to a porous pipe (13), and the porous pipe (13) is located below the inner wall of the drainage well (1).
4. The energy dissipation facility on a large height difference self-pressure pipeline according to claim 1 is characterized by: The shielding structure (3) comprises a top cover (301) and a weight block (302); the bottom of the top cover (301) fits with the top of the drainage well (1); the left side of the top of the top cover (301) is plugged into the outer wall of the weight block (302); a groove (303) is machined on the top of the weight block (302); and a straight plate (304) is fixedly connected to the top of the inner wall of the groove (303).
5. The energy dissipation facility on a large height difference self-pressure pipeline according to claim 4 is characterized in that: The bottom of the outer wall of the weight block (302) is plugged into the top notch of the first concrete wall (7).
6. The energy dissipation facility on a large height difference self-pressure pipeline according to claim 4 is characterized by: The right side of the inner wall of the top cover (301) fits against the top of the right side of the drainage well (1).