CN214783728U - Secondary energy dissipation well - Google Patents
Secondary energy dissipation well Download PDFInfo
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- CN214783728U CN214783728U CN202120726646.3U CN202120726646U CN214783728U CN 214783728 U CN214783728 U CN 214783728U CN 202120726646 U CN202120726646 U CN 202120726646U CN 214783728 U CN214783728 U CN 214783728U
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Abstract
A secondary energy dissipation well is characterized in that a water inlet pressure pipe is arranged in the middle of one side in a well body, a water inlet pipe opening is in the horizontal direction, and a horizontal water outlet gravity pipe is arranged at the bottom of the other side in the well body; the water inlet pipe mouth of the water inlet pressure pipe is provided with a first guide plate, a first water passing port is arranged between the first guide plate and the runner, a second guide plate in the horizontal direction is arranged below the first water passing port, a second water passing port is formed between the second guide plate and the side wall of the runner, and the pipe mouth of the water outlet gravity pipe is positioned at the downstream of the water flow of the second water passing port. The utility model can completely eliminate the kinetic energy of the turbulent water flow of the water inlet pressure pipe, and the water flow flowing into the water outlet gravity pipe is static pressure water flow without pressure, thereby achieving the effect of water flow energy dissipation; and dirt deposition cannot be generated in the energy dissipation well.
Description
Technical Field
The utility model relates to a municipal drainage technical field specifically is a secondary energy dissipation well.
Background
In the stages of water flow pipelines with large fall such as drainage, water supply or flood discharge, the energy carried by water flow is eliminated in the self structure, the pipelines with large fall are easy to generate cavitation erosion and cavitation erosion damage, the instability of the water flow is easy to generate vibration and noise, and the alternating state of the open flow and the full flow is harmful to buildings. At the moment, the kinetic energy of the water flow is required to be dissipated by adopting an energy dissipation well, most of energy is dissipated in a pipeline or a structure in the water drop process, a downstream outlet cannot damage a river bed, the river bank is protected, and the cost for reinforcing the river bank is reduced; the energy dissipation well in the drainage pipeline can not generate cavitation damage in the construction of drainage, so that the impact of water pressure on the pipeline wall is reduced, and the service life of the pipeline is prolonged; the safety and durability requirements of the water delivery pipeline, the energy dissipation structure and the urban pipe network are ensured, and the urban water supply is normally and orderly carried out.
Traditional energy dissipation well sets up the pressure inlet tube mouth of pipe into vertical play water, and the vertical energy dissipation well bottom of rushing into of rivers, rethread wall of a well opposite side horizontally play water gravity pipe discharge, and this kind of energy dissipation well has following shortcoming: 1. the water flow which vertically rushes into the bottom of the well still has larger kinetic energy in the horizontal direction, and the water flow discharged from the water outlet gravity pipe still has larger pressure; 2. the water flow vertically rushing to the bottom of the well is mixed with bubbles to have great impact force and cavitation erosion effect on the bottom of the well, and the water flow can damage the bottom of the well and the mouth of a water outlet gravity pipe for a long time, so that the energy dissipation well is damaged finally; 3. the vertical water flow generates a flow dead zone at the edge of the well bottom, and then the deposition of sewage is generated in the flow dead zone.
Disclosure of Invention
The utility model aims at providing a secondary energy dissipation well, which can completely eliminate the kinetic energy of the turbulent water flow of the water inlet pressure pipe, and the water flow flowing into the water outlet gravity pipe is static pressure water flow without pressure, thereby achieving the effect of water flow energy dissipation; and dirt deposition cannot be generated in the energy dissipation well.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a secondary energy dissipation well is characterized in that a water inlet pressure pipe is arranged in the middle of one side in a well body, a water inlet pipe opening is in the horizontal direction, and a horizontal water outlet gravity pipe is arranged at the bottom of the other side in the well body; the water inlet pipe mouth of the water inlet pressure pipe is provided with a first guide plate, a first water passing port is arranged between the first guide plate and the runner, a second guide plate in the horizontal direction is arranged below the first water passing port, a second water passing port is formed between the second guide plate and the side wall of the runner, and the pipe mouth of the water outlet gravity pipe is positioned at the downstream of the water flow of the second water passing port.
The rivers of pressure pipe of intaking are blockked at first by first guide plate, partly rivers flow to the second guide plate top from first water gap, when rivers are great, rivers do not come to be too late to flow down from first water gap, too much rivers overflow from first guide plate top, also reach the second guide plate top, finally, rivers flow to play water gravity pipe department from the second water gap again, rivers block and the energy dissipation through twice of first guide plate and second guide plate in the well, reach the endpoint and can eliminate original rivers pressure and kinetic energy completely, reach the effect of complete energy dissipation.
The first guide plate is in a right trapezoid shape in cross section, and the bevel edge is opposite to the water inlet pressure pipe. The bevel edge is inclined upwards, and the water flow in the horizontal direction is guided upwards, so that the first guide plate is prevented from directly bearing the water flow impact and the washing.
The cross-sectional shape of the second guide plate is a right trapezoid, the bevel edge is an upper end face, and the inclination direction faces the second water passing opening. The inclined plane of the second guide plate can completely guide the water flow to the second water passing hole to smoothly flow out, and the water accumulation phenomenon is avoided.
The well bottom surface of well body bottom is the inclined plane, and the incline direction is towards a water gravity pipe, leads rivers to a water gravity pipe, avoids ponding phenomenon.
The chute up end is the inclined plane, and the first mouth of a river of crossing of incline direction orientation is crossed the mouth of a river with the first of rivers direction, avoids ponding phenomenon.
The utility model has the advantages that:
(1) the utility model discloses constitute the two energy dissipation commutations of rivers, can eliminate the kinetic energy of the torrent rivers of the pressure pipe of intaking completely, the rivers that flow in out water gravity pipe are for not having the static pressure rivers of pressure, reach the effect of rivers energy dissipation.
(2) The utility model discloses in each be the inclined plane with the working face of rivers contact, can have fine water conservancy diversion effect to rivers, the phenomenon of ponding siltation appears in avoiding the well.
Description of the drawings:
FIG. 1 is a schematic sectional view of the present invention;
the components in the figure are identified as: 1. a well cover; 2. a water inlet pressure pipe; 3. a water outlet gravity pipe; 4. a first baffle; 5. a second baffle; 6. a launder.
Detailed Description
Example 1
A secondary energy dissipation well, the middle part of one side in the well body is provided with a water inlet pressure pipe 2, a water inlet pipe mouth is in the horizontal direction, and the bottom of the other side in the well body is provided with a horizontal water outlet gravity pipe 3; a first guide plate 4 is arranged at the water inlet of the water inlet pressure pipe 2, a first water passing port is arranged between the first guide plate 4 and the runner 6, a second guide plate 5 in the horizontal direction is arranged below the first water passing port, a second water passing port is formed between the second guide plate 5 and the side wall of the runner 6, and the pipe orifice of the water outlet gravity pipe 3 is positioned at the downstream of the water flow of the second water passing port;
the section of the first guide plate 4 is in a right trapezoid shape, and the bevel edge is opposite to the water inlet pressure pipe 2;
the section of the second guide plate 5 is in a right trapezoid shape, the bevel edge is an upper end face, and the inclination direction faces the second water passing opening;
the bottom surface of the well body is an inclined surface, and the inclined direction faces the water outlet gravity pipe 3;
the upper end surface of the runner 6 is an inclined surface, and the inclined direction faces to the first water passing port.
Claims (5)
1. A secondary energy dissipation well is characterized in that: a water inlet pressure pipe (2) is arranged in the middle of one side in the well body, a water inlet pipe opening is in the horizontal direction, and a horizontal water outlet gravity pipe (3) is arranged at the bottom of the other side in the well body; the water inlet pipe mouth department of intake pressure pipe (2) sets up first guide plate (4), is first crossing the mouth of a river between first guide plate (4) and chute (6), and first crossing mouth of a river below sets up second guide plate (5) of horizontal direction, forms the second between second guide plate (5) and chute (6) lateral wall and crosses the mouth of a river, and the mouth of pipe of play water gravity pipe (3) is in the rivers low reaches department that the mouth of a river was crossed to the second.
2. The secondary energy dissipating well of claim 1, wherein: the cross section of the first guide plate (4) is in a right-angle trapezoid shape, and the bevel edge is opposite to the water inlet pressure pipe (2).
3. The secondary energy dissipating well of claim 1, wherein: the cross section of the second guide plate (5) is in a right trapezoid shape, the bevel edge is an upper end face, and the inclination direction of the bevel edge faces the second water passing port.
4. The secondary energy dissipating well of claim 1, wherein: the bottom surface of the well body is an inclined surface, and the inclined direction faces the water outlet gravity pipe (3).
5. The secondary energy dissipating well of claim 1, wherein: the upper end surface of the runner (6) is an inclined surface, and the inclined direction faces to the first water passing port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120726646.3U CN214783728U (en) | 2021-04-10 | 2021-04-10 | Secondary energy dissipation well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120726646.3U CN214783728U (en) | 2021-04-10 | 2021-04-10 | Secondary energy dissipation well |
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| Publication Number | Publication Date |
|---|---|
| CN214783728U true CN214783728U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120726646.3U Active CN214783728U (en) | 2021-04-10 | 2021-04-10 | Secondary energy dissipation well |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592566A (en) * | 2022-02-23 | 2022-06-07 | 武汉科技大学 | Rectangular energy dissipation well for reducing water flow energy |
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2021
- 2021-04-10 CN CN202120726646.3U patent/CN214783728U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114592566A (en) * | 2022-02-23 | 2022-06-07 | 武汉科技大学 | Rectangular energy dissipation well for reducing water flow energy |
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