CN217974694U - Tail water drainage well - Google Patents
Tail water drainage well Download PDFInfo
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- CN217974694U CN217974694U CN202220441536.7U CN202220441536U CN217974694U CN 217974694 U CN217974694 U CN 217974694U CN 202220441536 U CN202220441536 U CN 202220441536U CN 217974694 U CN217974694 U CN 217974694U
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- energy dissipation
- well
- energy
- communication port
- tail water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims abstract description 108
- 239000011435 rock Substances 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 6
- 238000009991 scouring Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 239000004575 stone Substances 0.000 description 4
- 239000004567 concrete Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a tail water discharge well, which comprises an energy dissipation well, and comprises a tail water pipe for input, wherein an energy dissipation structure is arranged in the energy dissipation well; and the energy dissipation pool comprises a communication port and a discharge port for output, is communicated with the energy dissipation well through the communication port, and is internally provided with one or more energy dissipaters. The draft tube through the energy dissipation well docks with the tail water delivery pipe of sewage factory, through the preliminary energy dissipation of dissipation structure, then discharges from the discharge port after the energy dissipation worker through the energy dissipation pond carries out the energy dissipation once more, does not produce the scouring action to the river course, avoids discharging because of the tail water and leads to the embankment to destroy, risk such as collapse.
Description
Technical Field
The utility model relates to a sewage treatment discharges technical field, in particular to tail water drainage well.
Background
The simple tail water discharge port and the scattered energy dissipation effect of the small soil channel are general, and the simple tail water discharge port and the scattered energy dissipation effect can impact a local embankment and destroy a river bank structure, so that the ecological appearance is influenced, meanwhile, different degrees of potential safety hazards exist, and the device is subject to residents' scaling.
Disclosure of Invention
The utility model aims to solve one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a tail water drainage well can carry out the energy dissipation to the pressure flow of the draft tube of sewage plant, avoids discharging because of the tail water and leads to the embankment to destroy, risk such as collapse.
According to the utility model discloses tail water drainage well of first aspect embodiment, include:
the energy dissipation well comprises a draft tube for inputting, wherein an energy dissipation structure is arranged in the energy dissipation well; and
the energy dissipation pool comprises a communication port and a discharge port for output, the energy dissipation pool is communicated with the energy dissipation well through the communication port, and one or more energy dissipaters are arranged in the energy dissipation pool.
According to the utility model discloses a tail water drainage well of first aspect embodiment has following beneficial effect at least: the draft tube through the energy dissipation well docks with the tail water delivery pipe of sewage factory, through the preliminary energy dissipation of dissipation structure, then discharges from the discharge port after the energy dissipation worker through the energy dissipation pond carries out the energy dissipation once more, does not produce the scouring action to the river course, avoids discharging because of the tail water and leads to the embankment to destroy, risk such as collapse.
According to the utility model discloses a tail water drainage well of first aspect embodiment, the energy dissipater includes a plurality of energy dissipation mounds and abrupt groove structure, abrupt groove structure is located intercommunication mouth low reaches, the energy dissipation mound sets up abrupt groove is structural.
According to the utility model discloses a first aspect embodiment tail water drainage well, the pier height of energy dissipation mound is H, and definition hk is the critical depth of water, H satisfies following relation: h is more than 0.9hk and more than or equal to 0.8hk;
the length of the upper edge of each energy dissipation pier is at least 0.2H, the length of the lower edge of each energy dissipation pier is at least 0.7H, and the width of each energy dissipation pier is at least 1.5H;
wherein,
wherein q is the flow rate and g is the gravity constant.
According to the utility model discloses a tail water drainage well of first aspect embodiment, the slope of abrupt groove structure is not more than 1, the energy dissipation mound is arranged in the mode of array and is set up, the row spacing of energy dissipation mound with the slope of abrupt groove structure is relevant, the row spacing of energy dissipation mound is 1.5H.
According to the utility model discloses a tail water drainage well of first aspect embodiment, the aspect ratio in energy dissipation pond is 1.75, the pond width in energy dissipation pond is W:
W＝(1.1～1.3)(log 36q+0.2q)
where q is the flow rate.
According to the utility model discloses a first aspect embodiment tail water drainage shaft, the inboard of discharge port is equipped with the sill structure, the sill height of sill structure is 1/6W.
According to the utility model discloses an embodiment of first aspect tail water drainage well, be equipped with outlet baffle in the energy dissipation pond, outlet baffle's height is 3/8W at least.
According to the utility model discloses an embodiment of first aspect the tail water drainage well, the pond width in energy dissipation pond with the width of intercommunication mouth is the same, be equipped with on the exit shield with the opening orientation of intercommunication mouth becomes the corner face of predetermineeing the contained angle.
According to the utility model discloses a first aspect embodiment tail water drainage well, energy dissipation structure includes wide top weir platform and a plurality of rock pieces stone, each the rock pieces stone sets up energy dissipation well bottom, wide top weir platform sets up the low reaches of rock pieces stone, wide top weir platform join in marriage water extremely the intercommunication mouth.
According to the utility model discloses an embodiment of first aspect the tail water drainage well, the return bend that is preset the angle bending is adopted to the draft tube, the mouth of pipe slope of draft tube is downward.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples;
fig. 1 is a plan view of an embodiment of the present invention;
fig. 2 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are at least two, and the terms greater than, less than, more than, etc. are understood as excluding the number, and the terms above, below, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.
Referring to fig. 1-2, the utility model discloses tail water drainage well of first aspect embodiment is applied to the sewage treatment plant of small-size soil canal, and tail water drainage well includes energy dissipation well 1 and energy dissipation pond 2.
The energy dissipation well 1 comprises a draft tube 11 for input, and an energy dissipation structure is arranged in the energy dissipation well 1; and the energy dissipation pool 2 comprises a communication port 21 and a discharge port 25 for outputting, wherein the lower bottom elevation of the discharge port 25 is flush with the river bottom so that water flow can smoothly connect with the water surface of a downstream river channel and does not generate a scouring effect on the river channel, the energy dissipation pool 2 is communicated with the energy dissipation well 1 through the communication port 21, and one or more energy dissipaters are arranged in the energy dissipation pool 2. The tail water pipe 11 through the energy dissipation well 1 is in butt joint with the tail water discharge pipe of the sewage plant, energy is preliminarily dissipated through an energy dissipation structure, then energy is dissipated again through an energy dissipater of the energy dissipation pool 2 and then discharged from the discharge port 25, a scouring effect is not generated on a river channel, and risks such as bank damage and collapse caused by tail water discharge are avoided.
In some embodiments of the utility model, the energy dissipater includes a plurality of energy dissipation piers 23 and abrupt groove structure 26, abrupt groove structure 26 is located intercommunication mouth 21 low reaches, and energy dissipation pier 23 sets up on abrupt groove structure 26. The steep groove structure 26 can maintain the flow velocity of the inlet and the outlet of the steep groove to be equal, if the inlet is slow flow, the outlet is still slow flow, and no requirement is imposed on downstream water receiving bodies.
wherein the length of the upper edge of the energy dissipation pier 23 is at least 0.2H, the length of the lower edge of the energy dissipation pier 23 is at least 0.7H, and the width of the energy dissipation pier 23 is at least 1.5H;
wherein,
wherein q is the flow rate and g is the gravity constant.
In some embodiments of the present invention, the gradient, i.e. the ratio of horizontal to vertical, of the steep groove structure 26 is not greater than 1. The energy dissipation piers 23 are arranged in an array mode, the row pitch of the energy dissipation piers 23 is related to the gradient of the steep groove structure 26, when the steep groove gradient is 1; so as to maintain the same height difference and gradient between two adjacent rows of energy dissipation piers 23, and the row spacing of the energy dissipation piers 23 is 1.5H.
The utility model discloses an in some embodiments, energy dissipation pond 2 does not have strict requirements to low reaches discharge water body, and low reaches can not have the tail water, when having the tail water as the low reaches, more can improve the condition of effluenting, reduces the exit velocity of flow, has the effect that further reduces low reaches and erode. Specifically, the width-to-height ratio of the energy dissipation pool 2 is 1.75, the pool width of the energy dissipation pool 2 is W:
W＝(1.1～1.3)(log 36+0.2)
where q is the flow rate.
In some embodiments of the present invention, the inside of the discharge port 25 is provided with a tail sill structure 24, the height of the tail sill structure 24 is 1/6W, and the energy dissipation is more sufficient after the water flow impacts the tail sill structure 24.
The utility model discloses an in some embodiments, be equipped with outlet baffle 22 in the energy dissipation pond 2, outlet baffle 22 highly is 3/8W at least, and outlet baffle 22 adopts reinforced concrete pouring to form, fuses with the both sides wall body. Specifically, the width of the energy dissipation pool 2 is the same as that of the communication port 21, and the outlet baffle 22 is provided with a corner surface which forms a preset included angle with the opening of the communication port 21, wherein the preset included angle is 45 degrees so as to further block water flow.
The utility model discloses an in some embodiments, the energy dissipation structure includes wide top weir platform 13 and a plurality of rock massif 12, each rock massif 12 sets up in energy dissipation well 1 bottom, be used for energy dissipation draft tube 11 to go out the water and strike, wide top weir platform 13 sets up the low reaches at rock massif 12, rivers are discharged from discharge port 25 after the energy dissipation of the energy dissipation stone in the shaft bottom by supreme through the even water distribution of wide top weir platform 13 down, some pressure truns into wide top weir platform 13 in the draft tube 11 and flows, wide top weir platform 13 flows through abrupt groove structure 26, energy dissipation mound 23 and 24 secondary energy dissipations of sill structure. Wherein, the two sides of the water inlet of the wide top weir platform 13 can also be provided with a C10 second-stage concrete layer to reduce the local coefficient of the weir flow.
The utility model discloses an in some embodiments, draft tube 11 adopts to be the return bend of predetermineeing the angle bending, and the mouth of pipe slope of draft tube 11 is downward, adopts the welding steel pipe under the normal conditions.
The technical features of the embodiments described above can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (9)
1. A tailwater drainage well, comprising:
the energy dissipation well comprises a draft tube for input, wherein an energy dissipation structure is arranged in the energy dissipation well; and
the energy dissipation pool comprises a communication port and a discharge port for output, is communicated with the energy dissipation well through the communication port, and is internally provided with one or more energy dissipaters;
the energy dissipater comprises a plurality of energy dissipation piers and a steep groove structure, the steep groove structure is located at the downstream of the communication port, and the energy dissipation piers are arranged on the steep groove structure.
2. The tail water discharge well of claim 1, wherein: the pier height of the energy dissipation pier is H, hk is defined as critical water depth, and H satisfies the following relation: h is more than 0.9hk and more than or equal to 0.8hk;
the length of the upper edge of each energy dissipation pier is at least 0.2H, the length of the lower edge of each energy dissipation pier is at least 0.7H, and the width of each energy dissipation pier is at least 1.5H;
wherein,
wherein q is the flow rate and g is the gravity constant.
3. The tailwater drainage well of claim 2, wherein: the gradient of the steep groove structure is not more than 1, the energy dissipation piers are arranged in an array mode, the row pitch of the energy dissipation piers is related to the gradient of the steep groove structure, and the row pitch of the energy dissipation piers is 1.5H.
4. A tailwater drainage well, comprising:
the energy dissipation well comprises a draft tube for inputting, wherein an energy dissipation structure is arranged in the energy dissipation well; and
the energy dissipation pool comprises a communication port and a discharge port for output, is communicated with the energy dissipation well through the communication port, and is internally provided with one or more energy dissipaters;
the width-height ratio of the energy dissipation pool is 1.75, the pool width of the energy dissipation pool is W:
W＝(1.1～1.3)(log36q+0.2q)
where q is the flow rate.
5. The tailwater drainage well of claim 4, wherein: the inner side of the discharge port is provided with a tail sill structure, and the sill height of the tail sill structure is 1/6W.
6. The tail water discharge well of claim 4, wherein: an outlet baffle is arranged in the energy dissipation pool, and the height of the outlet baffle is at least 3/8W.
7. The tailwater drainage well of claim 6, wherein: the tank width of the energy dissipation tank is the same as the width of the communication port, and the outlet baffle plate is provided with a corner surface which forms a preset included angle with the opening of the communication port.
8. A tailwater drainage well, comprising:
the energy dissipation well comprises a draft tube for input, wherein an energy dissipation structure is arranged in the energy dissipation well; and
the energy dissipation pool comprises a communication port and a discharge port for output, is communicated with the energy dissipation well through the communication port, and is internally provided with one or more energy dissipaters;
the energy dissipation structure comprises a wide top weir platform and a plurality of rock blocks, each rock block is arranged at the bottom of the energy dissipation well, the wide top weir platform is arranged at the downstream of the rock block, and the wide top weir platform distributes water to the communication port.
9. The tailwater drainage well of claim 8, wherein: the draft tube adopts the return bend that is the bending of predetermineeing the angle, the mouth of pipe slope of draft tube is downward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220441536.7U CN217974694U (en) | 2022-03-01 | 2022-03-01 | Tail water drainage well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220441536.7U CN217974694U (en) | 2022-03-01 | 2022-03-01 | Tail water drainage well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217974694U true CN217974694U (en) | 2022-12-06 |
Family
ID=84254276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220441536.7U Active CN217974694U (en) | 2022-03-01 | 2022-03-01 | Tail water drainage well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217974694U (en) |
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2022
- 2022-03-01 CN CN202220441536.7U patent/CN217974694U/en active Active
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