CN217601621U - Falling flow vertical shaft with spiral-flow type flow-dividing water inlet structure - Google Patents
Falling flow vertical shaft with spiral-flow type flow-dividing water inlet structure Download PDFInfo
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- CN217601621U CN217601621U CN202221939191.4U CN202221939191U CN217601621U CN 217601621 U CN217601621 U CN 217601621U CN 202221939191 U CN202221939191 U CN 202221939191U CN 217601621 U CN217601621 U CN 217601621U
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- water inlet
- inlet pipe
- flow
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 238000005192 partition Methods 0.000 claims abstract description 87
- 238000009423 ventilation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model provides a falling flow vertical shaft with a spiral-flow type flow-dividing water inlet structure, which comprises a vertical shaft and a flow dividing device arranged in the vertical shaft; an air inlet pipe and a water inlet pipe are arranged on one side of the vertical shaft, and the bottom of the vertical shaft is vertically connected with a horizontal drainage pipe; the flow dividing device comprises a first partition plate, a second partition plate and a third partition plate which are equal in height, the surface of the first partition plate is a plane, and the surfaces of the second partition plate and the third partition plate are arc-shaped curved surfaces; the first end surfaces of the first and second partition plates and the first end surface of the third partition plate are connected in pairs, a first intersection line is formed at the joint, and the second and third partition plates are symmetrically distributed along the first partition plate; the second end surface of the first clapboard is connected with the inner wall of the vertical shaft, a second intersecting line is formed at the joint, and the midpoint of the second intersecting line is positioned on the extension line of the horizontal center line of the water inlet pipe; the second end surfaces of the second and third partition boards are connected with the inner wall of the vertical shaft. The utility model discloses a shaft can guarantee to have good ventilation condition in the shaft, adjusts shaft internal gas pressure to eliminate the kinetic energy of rivers.
Description
Technical Field
The utility model relates to a municipal works technical field particularly relates to a tumble and flow shaft with spiral-flow type reposition of redundant personnel inlet structure.
Background
The drop flow vertical shaft is widely applied to urban drainage systems, is one of the most common hydraulic buildings, and has the characteristics of simple design, convenience in construction, safety, reliability and the like. With frequent occurrence of extreme weather, urban inland inundation becomes more and more serious, and further the drainage system is widely applied. The vertical shaft is used as an important component in a deep drainage system and bears water flow transition between drainage pipelines at different altitude positions, the height of the common deep vertical shaft is about 30-60m, and the characteristic of high fall enables the vertical shaft to suck a large amount of outside air, so that the pressure in the vertical shaft and the drainage pipelines is easily too high, and the phenomena of well blowout, air explosion and the like can be found in serious cases.
The vertical shaft is used as a main place for air entrainment, and the modes for entraining air are many, including the following modes: the falling water flow drags gas downwards, the water tongue falls to suck the gas, the water flow falls to the bottom of the well and carries the gas, and the like. When the water flow falls under the action of gravity, the water flow is separated and broken into a large number of water drops after falling for a certain distance due to the existence of shearing force, and the kinetic energy of the water drops is transferred to gas to enable the gas to move downwards to the bottom of the well; secondly, when the flow in the water inlet pipe is large, the water flow can collide with the opposite well wall to form a large water tongue, the formation of the water tongue can block a gas circulation channel, and gas sucked by the vertical shaft cannot be well circulated, so that the gas pressure distribution in the vertical shaft is extremely unstable.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to block the problem of gas flow passageway because of appearing the nappe in the shaft, provide a fall a class shaft with spiral-flow type reposition of redundant personnel inlet structure, this shaft structure can guarantee to have good ventilation condition in the shaft, adjusts the shaft internal gas pressure to eliminate the kinetic energy of rivers.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a drop flow vertical shaft with a spiral-flow type flow-dividing water inlet structure comprises a vertical shaft and a flow dividing device arranged in the vertical shaft;
an air inlet pipe and a water inlet pipe are arranged on one side of the vertical shaft, the air inlet pipe is arranged above the water inlet pipe, and the bottom of the vertical shaft is vertically connected with the horizontal drainage pipe to form a passage;
the flow dividing device comprises a first partition plate, a second partition plate and a third partition plate which are equal in height, the surface of the first partition plate is a plane, and the surfaces of the second partition plate and the third partition plate are both arc-shaped curved surfaces;
the first end face of the first partition plate, the first end face of the second partition plate and the first end face of the third partition plate are connected in pairs, a first intersection line is formed at the joint, and the second partition plate and the third partition plate are symmetrically distributed along the first partition plate;
the second end surface of the first partition board is connected with the inner wall of the vertical shaft, and a second intersecting line is formed at the connecting position, wherein the midpoint of the second intersecting line is positioned on the extension line of the horizontal center line of the water inlet pipe, and the first partition board divides the connecting port of the water inlet pipe and the vertical shaft into a first water inlet and a second water inlet;
the second end face of the second partition plate and the second end face of the third partition plate are connected with the inner wall of the vertical shaft;
the first partition plate, the second partition plate and the third partition plate divide an inner cavity of the vertical shaft into a first cavity, a second cavity and a third cavity, the first cavity and the second cavity are overflow areas, and the third cavity is an air passing area.
Preferably, said first intersection line coincides with the vertical centre line of the shaft.
Preferably, the second partition plate and the third partition plate have the same structure.
Preferably, in the arc surfaces formed by the cross sections of the second partition plates, the radius of a circle where the arc surfaces are located is 1/2 of the diameter of the vertical shaft, and the central angle is 30-60 degrees.
Preferably, the thickness of the second separator is 1/2 of the thickness of the first separator.
Preferably, the first partition board is a rectangular board, wherein the width of the rectangular board is 1/2 of the diameter of the vertical shaft, the height of the rectangular board is 2-3 times of the diameter of the water inlet pipe, and the thickness of the rectangular board is 1/8-1/10 of the diameter of the water inlet pipe.
Preferably, the diameter of the water inlet pipe is 1/2 of the diameter of the vertical shaft, and the length of the water inlet pipe is 10-12 times of the diameter of the water inlet pipe.
Preferably, the diameter of the air inlet pipe is 1/4 of the diameter of the vertical shaft, and the length of the air inlet pipe is 2-4 times of the diameter of the air inlet pipe.
Preferably, the distance between the air inlet pipe and the top of the vertical shaft is 1/45-2/45 of the length of the vertical shaft, and the distance between the water inlet pipe and the top of the vertical shaft is 1/9-2/9 of the length of the vertical shaft.
Preferably, the diameter of the horizontal drain pipe is the same as that of the vertical shaft.
The beneficial effects of the utility model reside in that:
1. the utility model discloses a fall and flow shaft with spiral-flow type reposition of redundant personnel inlet structure is equipped with diverging device, and first baffle, second baffle and third baffle are cut apart into with the shaft and are flowed the region and cross the gas region, and rivers get into behind the shaft, strike on second baffle and the third baffle to overflowing regional formation water tongue, cross the gas region and not obstructed by the water tongue, and gas can be in crossing the regional circulation of gas, thereby has guaranteed the ventilation smoothness in the shaft, thereby has stabilized the atmospheric pressure in the shaft.
2. The utility model discloses a diverging device, second baffle and third baffle set to the arc curved surface, when flow is great, the velocity of water flow is great, still can continue to be rotary motion around the arc curved surface baffle from the partial rivers of first baffle department reposition of redundant personnel, then strike the wall of a well on, partial rivers continue to paste the wall and are rotary motion and whereabouts, partial rivers can directly freely fall from the well, consequently, reduce the broken volume of rivers on the one hand, it smugglies secretly to reduce the air, thereby reduce the pressure of shaft bottom, improve the foul smell escape problem that produces because of the air entrainment, on the other hand, frictional force has been increased, it directly falls in the shaft to compare, the on-way loss increases, can eliminate the kinetic energy of rivers well, prevent the impact of whereabouts rivers to the shaft bottom.
Drawings
Fig. 1 is the structure schematic diagram of the falling flow vertical shaft with the spiral-flow type flow-dividing water inlet structure of the present invention.
Fig. 2 is the structure diagram of the falling flow shaft with the spiral-flow type flow-dividing water inlet structure of the present invention.
Fig. 3 is a schematic structural view of the flow dividing device of the present invention.
Description of reference numerals: 10. a shaft; 11. a first cavity; 12. a second cavity; 13. a third cavity; 20. a flow divider; 21. a first separator; 22. a second separator; 23. a third separator; 24. a first intersection line; 25. a second intersecting line; 30. an air inlet pipe; 40. a water inlet pipe; 41. a first water inlet; 42. a second water inlet; 50. a horizontal drainage pipe; a1, extending a horizontal center line of a water inlet pipe; and A2, vertical center line of the shaft.
Detailed Description
For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways.
With reference to fig. 1-3, the utility model provides a falling flow vertical shaft with a spiral-flow type flow-dividing water inlet structure, which is divided into a flow passing area and a gas passing area by a first partition plate, a second partition plate and a third partition plate, so as to ensure smooth ventilation in the vertical shaft; simultaneously, change the inflow mode of inlet tube, make rivers be rotary motion along second baffle and third baffle to along the both sides whereabouts of second baffle and third baffle, also can play the effect of energy dissipation scour protection when reducing air entrainment volume.
In an exemplary embodiment, as shown in fig. 1, a drop flow shaft with a cyclonic diversion intake structure is provided, comprising a shaft 10 and a diversion apparatus 20 disposed within the shaft.
An air inlet pipe 30 and a water inlet pipe 40 are arranged on one side of the vertical shaft, the air inlet pipe 30 is arranged above the water inlet pipe 40, and the bottom of the vertical shaft is vertically connected with a transverse drainage pipe 50 to form a passage.
Referring to fig. 1 and 2, the flow divider 20 includes a first partition plate 21, a second partition plate 22, and a third partition plate 23 having equal heights, where a surface of the first partition plate 21 is a plane, and surfaces of the second partition plate 22 and the third partition plate 23 are both arc-shaped curved surfaces.
The first end face of the first partition board 21, the first end face of the second partition board 22 and the first end face of the third partition board 23 are connected in pairs, a first intersection line 24 is formed at the joint, and the second partition board 22 and the third partition board 23 are symmetrically distributed along the first partition board.
The second end surface of the first clapboard 21 is connected with the inner wall of the shaft, and a second intersecting line 25 is formed at the joint, wherein the midpoint of the second intersecting line is positioned on the extension line A1 of the horizontal center line of the water inlet pipe, and the first clapboard divides the connecting port of the water inlet pipe and the shaft into a first water inlet 41 and a second water inlet 42.
And the second end surface of the second clapboard 22 and the second end surface of the third clapboard 22 are connected with the inner wall of the shaft.
Thus, the first partition plate 21, the second partition plate 22 and the third partition plate 23 divide the shaft cavity into a first cavity 11, a second cavity 12 and a third cavity 13, the first cavity 11 and the second cavity 12 are flow passing areas, and the third cavity 13 is a gas passing area.
In the preferred embodiment, said first intersection line 24 coincides with the vertical centre line A2 of the shaft.
In the preferred embodiment, the second 22 and third 23 baffles are identical in construction, as shown in figure 2.
In an alternative embodiment, in the arc formed by the cross sections of the second partition plate 21 and the third partition plate 23, the radius R of the circle in which the arc is located is 1/2 of the diameter of the shaft, the central angle θ is 30-60 °, and the central angle θ is particularly preferably 45 °.
Through setting the appropriate cambered surface curvature and the positions of the second partition plate 21 and the third partition plate 23, more water flows are rotated, so that the water flow breaking amount is less, and the energy dissipation effect is better.
As shown in FIG. 3, in a preferred embodiment, the thickness W1 of the second and third separators 22, 23 is 1/2 of the thickness W2 of the first separator.
It should be understood that the second partition 22 and the third partition 23 may have different structures, and the structural communication may enable the second partition 22 and the third partition 23 to be symmetrically distributed with the extension line L1 of the first partition as a symmetry axis, so as to enable the inflow to be equally stressed and to have better stability, but may be selected according to actual situations.
In a preferred embodiment, the first partition 21 is a rectangular plate, wherein the length L is 1/2 of the diameter of the shaft, the height H is 2-3 times of the diameter of the water inlet pipe, and the thickness W2 is 1/8-1/10 of the diameter of the water inlet pipe.
In an alternative embodiment, the diameter of the inlet pipe 40 is 1/2 of the diameter of the shaft, and the length of the inlet pipe 40 is 10-12 times of the diameter of the inlet pipe.
In an alternative embodiment, the diameter of the air inlet pipe 30 is 1/4 of the diameter of the shaft, and the length of the air inlet pipe 30 is 2-4 times of the diameter of the air inlet pipe.
In an alternative embodiment, the intake pipe 30 is spaced from the top of the shaft by a distance of 1/45 to 2/45 of the shaft length.
In an alternative embodiment the inlet conduit 40 is located at a distance of 1/9 to 2/9 of the shaft length from the top of the shaft.
In an alternative embodiment, the cross drain pipe 50 has the same diameter as the shaft.
The utility model discloses a theory of operation of falling a class shaft with spiral-flow type reposition of redundant personnel structure of intaking
Through constructing diverging device 20 in shaft 10, can make rivers get into first cavity 11 and second cavity 12 respectively along first water inlet 41 and second water inlet 42 and fall down to can avoid the rivers in the inlet tube directly to strike the wall of a well on, form huge water tongue, the existence of water tongue can occupy most interior circulation of air's passageway, forms the continuous region of negative pressure easily, the utility model discloses a diverging device forms third cavity 13 in the shaft, reserves out the passageway that supplies circulation of air in the shaft, thereby stabilizes the atmospheric pressure in the shaft.
And the water flow in the inlet pipe is divided into two parts, and the movement form of the water flow in the first cavity 11 and the second cavity 12 is as follows: when the flow rate is low, the water flow freely falls in the first cavity 11 and the second cavity 12 or impacts the wall of the well in the cavities; when the flow is great, the velocity of water flow is great, the rivers move along first baffle 21, then be rotary motion on second baffle 22 and third baffle 23, and continue to move to the wall of a well, continue to be rotary motion and whereabouts around the wall of a well under the effect of inertia, because rivers are hugged closely baffle and wall of a well and are rotary motion and whereabouts, the broken volume of rivers has been reduced, reduce the air and smuggle secretly, thereby reduce the pressure of shaft bottom, also make the frictional force greatly increased between rivers and the wall of a well and the baffle simultaneously, can play the effect of eliminating the huge kinetic energy that rivers carried.
Although the invention has been described with reference to preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be defined by the appended claims.
Claims (10)
1. A drop flow vertical shaft with a spiral-flow type flow-dividing water inlet structure is characterized by comprising a vertical shaft and a flow dividing device arranged in the vertical shaft;
an air inlet pipe and a water inlet pipe are arranged on one side of the vertical shaft, the air inlet pipe is arranged above the water inlet pipe, and the bottom of the vertical shaft is vertically connected with the horizontal drainage pipe to form a passage;
the flow dividing device comprises a first partition plate, a second partition plate and a third partition plate which are equal in height, the surface of the first partition plate is a plane, and the surfaces of the second partition plate and the third partition plate are both arc-shaped curved surfaces;
the first end face of the first partition plate, the first end face of the second partition plate and the first end face of the third partition plate are connected in pairs, a first intersection line is formed at the joint, and the second partition plate and the third partition plate are symmetrically distributed along the first partition plate;
the second end surface of the first partition board is connected with the inner wall of the vertical shaft, and a second intersecting line is formed at the connecting position, wherein the midpoint of the second intersecting line is positioned on the extension line of the horizontal center line of the water inlet pipe, and the first partition board divides the connecting port of the water inlet pipe and the vertical shaft into a first water inlet and a second water inlet;
the second end face of the second partition plate and the second end face of the third partition plate are connected with the inner wall of the vertical shaft;
the first partition plate, the second partition plate and the third partition plate divide an inner cavity of the shaft into a first cavity, a second cavity and a third cavity, the first cavity and the second cavity are overflow areas, and the third cavity is an air passing area.
2. The drop shaft with cyclonic split water entry structure of claim 1 wherein the first line of intersection coincides with the vertical centerline of the shaft.
3. The drop shaft with a cyclonic split flow water intake structure of claim 1, wherein the second partition and the third partition are structurally identical.
4. The drop shaft with the rotational flow type flow dividing and water inlet structure as claimed in claim 3, wherein in the arc surface formed by the cross section of the second partition plate, the radius of the circle where the arc surface is located is 1/2 of the diameter of the shaft, and the central angle is 30-60 degrees.
5. The drop shaft with a cyclonic split water intake structure of claim 3, wherein the thickness of the second partition is 1/2 of the thickness of the first partition.
6. The drop shaft with the spiral-flow type flow splitting water inlet structure as claimed in claim 1, wherein the first partition plate is a rectangular plate, the width of the rectangular plate is 1/2 of the diameter of the shaft, the height of the rectangular plate is 2-3 times of the diameter of the water inlet pipe, and the thickness of the rectangular plate is 1/8-1/10 of the diameter of the water inlet pipe.
7. The drop flow shaft with the rotational flow type flow dividing water inlet structure as claimed in claim 1, wherein the diameter of the water inlet pipe is 1/2 of the diameter of the shaft, and the length of the water inlet pipe is 10-12 times of the diameter of the water inlet pipe.
8. The drop flow shaft with the rotational flow type flow dividing water inlet structure as claimed in claim 1, wherein the diameter of the air inlet pipe is 1/4 of the diameter of the shaft, and the length of the air inlet pipe is 2-4 times of the diameter of the air inlet pipe.
9. The drop shaft with the rotational flow type flow splitting water inlet structure as claimed in claim 1, wherein the distance from the air inlet pipe to the top of the shaft is 1/45-2/45 of the length of the shaft, and the distance from the water inlet pipe to the top of the shaft is 1/9-2/9 of the length of the shaft.
10. The fall shaft with a cyclonic split water intake structure according to claim 1, wherein the diameter of the horizontal drain pipe is the same as the diameter of the shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221939191.4U CN217601621U (en) | 2022-07-26 | 2022-07-26 | Falling flow vertical shaft with spiral-flow type flow-dividing water inlet structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221939191.4U CN217601621U (en) | 2022-07-26 | 2022-07-26 | Falling flow vertical shaft with spiral-flow type flow-dividing water inlet structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217601621U true CN217601621U (en) | 2022-10-18 |
Family
ID=83593516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221939191.4U Expired - Fee Related CN217601621U (en) | 2022-07-26 | 2022-07-26 | Falling flow vertical shaft with spiral-flow type flow-dividing water inlet structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217601621U (en) |
-
2022
- 2022-07-26 CN CN202221939191.4U patent/CN217601621U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221018 |