CN203808026U - Aerator structure for ultra-wide drain trough - Google Patents
Aerator structure for ultra-wide drain trough Download PDFInfo
- Publication number
- CN203808026U CN203808026U CN201420158002.9U CN201420158002U CN203808026U CN 203808026 U CN203808026 U CN 203808026U CN 201420158002 U CN201420158002 U CN 201420158002U CN 203808026 U CN203808026 U CN 203808026U
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- Prior art keywords
- wall
- aeration
- pipes
- letting out
- bank
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- Expired - Lifetime
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- 238000005276 aerator Methods 0.000 title claims abstract description 26
- 238000005273 aeration Methods 0.000 abstract description 28
- 238000007599 discharging Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model discloses an aerator structure for an ultra-wide drain trough, which comprises a bottom plate, wall bodies fixedly connected with the two sides of the bottom plate and a flip bucket aslant arranged on the upper surface of the bottom plate, wherein air vents are formed in the bottom ends of the wall bodies on the two sides of the downstream vertical surface of the flip bucket and communicated with vent grooves in the wall bodies; air pipes are embedded into the wall bodies and adjacent to the vent grooves; the bottoms of the air pipes are fixedly connected with horizontal pipes; the horizontal pipes are vertical to the wall bodies and embedded into the flip bucket; the front ends of the horizontal pipes are fixedly connected with a plurality of air supply pipes vertical to the horizontal pipes; the tail ends of the air supply pipes are communicated with the downstream vertical surface of the flip bucket. The structure can obviously increase the aeration quantity and the aeration speed, the aeration is uniform, no aeration dead zone exists, meanwhile, the structure is more stable, and the cost is lower.
Description
Technical field
The utility model relates to Hydraulic and Hydro-Power Engineering technical field, is specifically related to a kind of flood spillway structure, relates in particular to a kind of super wide aerator structure of letting out groove.
Background technology
At present, in Hydraulic and Hydro-Power Engineering flood discharge, flood spillway is a kind of the most common outlet structure escape works, and letting out groove is one of important component part of flood spillway engineering, and it is the high flow rate drainage gallery of flood spillway.Along with developing rapidly of high dam engineering, the Hydraulic and Hydro-Power Engineering of large discharge is increasing, and flood spillway scale is also increasing, and the width of letting out groove also increases thereupon.According to statistics, the well width of letting out of part engineering exceedes 50m magnitude, belongs to the super wide groove of letting out.Under high-velocity flow effect, conventional traditional aerator structure is difficult to the super wide high-velocity flow aeration of letting out groove middle part, when high-velocity flow aeration is insufficient, let out groove structure cavitation destruction very easily occurs, thereby cause the breaking-up of whole flood discharge engineering, cause huge economic loss, also threaten the safety of engineering.High-velocity flow aeration can alleviate the cavitation erosion of wetted surfaces, so the super wide groove aeration blind area of letting out is the weak part of letting out groove generation cavitation destruction.
Conventional traditional aerator structure, the patent document that is CN102966082A as publication No. discloses curved formula air entraining facilities under a kind of base plate, comprise aerator, air vent, base plate lower horizontal section and anti-segmental arc, aerator, base plate lower horizontal section and anti-segmental arc set gradually and form entirety, and this splicing entirety is a part for base plate; Air vent is arranged on the both sides, downstream of aerator, and air vent is with ventilating shaft, ventilation gallery or be directly communicated with atmosphere.From foregoing and accompanying drawing 1, this scheme is only applicable to the flood spillway that width is less, can only be to carrying out aeration in the 10m～15m width range of abutment wall both sides, be greater than the groove of letting out of 50m level for width, if adopt conventional traditional aerator structure, letting out within the scope of the about 20m～30m in groove middle part and cannot occur aeration blind area by aeration.
The patent document that and for example publication number is CN101570966A discloses a kind of dispersed ventilated aerator for aeration, comprise main air vent, in aerator, be provided with the dispersed ventilated pipeline that one end is communicated with main air vent, the other end of this dispersed ventilated pipeline is communicated with the downstream facade of aerator.From foregoing and accompanying drawing 4～accompanying drawing 8, this scheme can solve the aeration requirement that width is greater than the flood spillway of 50m rank by dispersed ventilated pipeline, but the structure of this scheme is mainly some dispersed ventilated pipelines respectively in parallel in main air vent downstream, obviously need to expend more tubing, cost is higher; And tubing is more also need, choosing the through hole of offering equivalent amount in bank, can reduce the structural strength of choosing bank, may cause choosing bank and subside, and aeration mechanism is limited, has a strong impact on the normal work of flood spillway.
Obviously, above-mentioned two kinds of conventional traditional aerator structures cannot meet width and be greater than the super wide aeration demands of letting out groove high-velocity flow such as 50m, and being badly in need of provides a kind of new aerator structure to solve these problems.
Utility model content
The utility model aims to provide a kind of super wide aerator structure of letting out groove, existingly in prior art easily occurs aeration blind area, the problem such as consumptive material is many, cost is high, stabilized structure is poor, easily subside to solve.
The utility model is achieved by following technical solution:
A kind of super wide aerator structure of letting out groove, comprise base plate, be fixed in base plate both sides body of wall, be arranged on plate upper surface and be the bank of choosing being in tilted layout, the body of wall bottom of choosing facade both sides, bank downstream has air vent, air vent is connected with the air channel that is opened in body of wall inside, in described body of wall, be all embedded with ventilating pipe, adjacent and the bottom of this ventilating pipe and air channel is connected with transverse tube, transverse tube and body of wall are perpendicular and be embedded in and choose bank inside, transverse tube front end is connected with some blowdown pipes perpendicular with it, blowdown pipe end with choose bank downstream facade and be communicated with.
Taking described base plate axis as benchmark, the distance between outermost blowdown pipe and body of wall equals 1/4 of baseplate width.
The diameter of choosing two adjacent blowdown pipes at bank middle part described in being positioned at is φ=0.4m, and the diameter of all the other blowdown pipes is φ=0.2m.
Diameter phi=the 1m of described ventilating pipe.
Diameter phi=the 0.4m of described transverse tube.
The described Kan Po ratio of choosing is 1:20.
The beneficial effects of the utility model are:
Compared with prior art, the super wide aerator structure of letting out groove that the utility model provides, set up some blowdown pipes choosing bank inside, blowdown pipe is communicated with the ventilating pipe being placed in body of wall by transverse tube, and then can realize the above super wide aeration of letting out groove middle part of 50m by blowdown pipe, there will not be aeration blind area, and then can alleviate the cavitation erosion of wetted surfaces, protection flood discharging groove; And adopt some blowdown pipes are set on single transverse tube, without setting up one by one tracheae for blowdown pipe, effectively saved tubing consumption, provide cost savings; Meanwhile, due to the minimizing of tubing quantity, without offering a large amount of through holes in bank choosing, and then improve the structural stability of choosing bank, avoided the appearance of the problem of subsiding, and then improved the flood discharging groove overall structure life-span; In addition, the design that this structure adopts the conventional aeration groove of distributing aeration structure to combine can improve in the structure of existing flood discharging groove, without whole replacings, has further reduced cost.
Brief description of the drawings
Fig. 1 is that solid of the present utility model is partly cutd open figure;
Fig. 2 is top view of the present utility model;
Fig. 3 is A-A sectional view in Fig. 2;
In figure: 1-base plate, 2-chooses bank, 3-air vent, 4-air channel, 5-body of wall, 6-ventilating pipe, 7-transverse tube, 8-blowdown pipe.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further, but described in desired protection domain is not limited to;
As Fig. 1, shown in 2 and 3, the super wide aerator structure of letting out groove that the utility model provides, comprise base plate 1, be fixed in the body of wall 5 of base plate 1 both sides, be arranged on base plate 1 upper surface be in tilted layout choose bank 2, body of wall 5 bottoms of choosing bank 2 facade both sides, downstream have air vent 3, air vent 3 is connected with the air channel 4 that is opened in body of wall 5 inside, the interior ventilating pipe 6 that is all embedded with of described body of wall 5, this ventilating pipe 6 and bottom adjacent with air channel 4 is connected with transverse tube 7, transverse tube 7 is perpendicular and be embedded in and choose bank 2 inside with body of wall 5, transverse tube 7 front ends are connected with some blowdown pipes 8 perpendicular with it, blowdown pipe 8 ends with choose bank 2 downstream facades and be communicated with.
Taking described base plate 1 axis as benchmark, the distance between outermost blowdown pipe 8 and body of wall 5 equals 1/4 of base plate 1 width.This is to be also provided with conventional air vent 3 owing to choosing bank 2 facade two ends, downstream, and without outermost blowdown pipe 8 being arranged in the scope of these air vent 3 energy aerations, the resource that avoids waste, reduces construction investment.
Because current mainly concentrate on base plate 1 middle part, the middle part water yield is larger, and thickness is higher compared to both sides, and in order to ensure even aeration, the diameter of choosing two adjacent blowdown pipes 8 at bank 2 middle parts described in being positioned at is φ=0.4m, and the diameter of all the other blowdown pipes 8 is φ=0.2m.
For the air that guarantees to provide abundant mixes in water, improve air flow rate, the diameter phi=1m of described ventilating pipe 6.
In order to ensure that all blowdown pipes 8 of fish match, the diameter phi=0.4m of described transverse tube 7, and can also reduce space hold, promote the intensity of choosing bank 2.
In order to produce enough strong siphon power by current, described in choose Kan2Po than for 1:20.
Embodiment:
The maximum discharge Q=14900m of certain engineering flood spillway
3/ s, the wide 50m of Spillway chute, base slope i=8%, lets out groove Peak Flow Rate 37m/s, need to solve a wide difficult problem of letting out groove high flow rate aeration, and therefore, on flood discharging groove, interval is provided with the super wide aerator structural type of letting out groove that three the utility model provide.Choose bank 2 adverse slope slopes than being 1:20, air channel 4 is of a size of 1m × 2m rectangle, and bottom side air vent 3 is of a size of 1m × 2m rectangle, and crest level is lower than choosing bank 2 top 20cm.Ventilating pipe 6 diameter phi=1m, the diameter phi of blowdown pipe 8 is followed successively by 0.2m, 0.2m, 0.2m, 0.4m.Actual motion 3 months, aeration effect, compared to traditional aeration structure, obviously promoted air entrainment and aeration speed, and aeration is even, there is no aeration blind area; In addition, structure is more stable, transition cavitation corrosion does not occur and the phenomenon of caving in, and flood discharge successful promotes.
Claims (6)
1. a super wide aerator structure of letting out groove, comprise base plate (1), be fixed in the body of wall (5) of base plate (1) both sides, be arranged on base plate (1) upper surface be in tilted layout choose bank (2), body of wall (5) bottom of choosing facade both sides, bank (2) downstream has air vent (3), air vent (3) air channel (4) inner with being opened in body of wall (5) is connected, it is characterized in that: in described body of wall (5), be all embedded with ventilating pipe (6), this ventilating pipe (6) and bottom adjacent with air channel (4) is connected with transverse tube (7), transverse tube (7) and body of wall (5) are perpendicular and be embedded in and choose bank (2) inside, transverse tube (7) front end is connected with some blowdown pipes perpendicular with it (8), blowdown pipe (8) end with choose bank (2) downstream facade and be communicated with.
2. super wide aerator structure of letting out groove according to claim 1, is characterized in that: taking described base plate (1) axis as benchmark, the distance being positioned between outermost blowdown pipe (8) and body of wall (5) equals 1/4 of base plate (1) width.
3. super wide aerator structure of letting out groove according to claim 1, is characterized in that: the diameter of choosing two adjacent blowdown pipes (8) at bank (2) middle part described in being positioned at is φ=0.4m, and the diameter of all the other blowdown pipes (8) is φ=0.2m.
4. super wide aerator structure of letting out groove according to claim 1, is characterized in that: the diameter phi=1m of described ventilating pipe (6).
5. super wide aerator structure of letting out groove according to claim 1, is characterized in that: the diameter phi=0.4m of described transverse tube (7).
6. super wide aerator structure of letting out groove according to claim 1, is characterized in that: described in choose bank (2) slope than for 1:20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420158002.9U CN203808026U (en) | 2014-03-28 | 2014-03-28 | Aerator structure for ultra-wide drain trough |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420158002.9U CN203808026U (en) | 2014-03-28 | 2014-03-28 | Aerator structure for ultra-wide drain trough |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203808026U true CN203808026U (en) | 2014-09-03 |
Family
ID=51446806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420158002.9U Expired - Lifetime CN203808026U (en) | 2014-03-28 | 2014-03-28 | Aerator structure for ultra-wide drain trough |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203808026U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155486A (en) * | 2015-10-14 | 2015-12-16 | 中国电建集团成都勘测设计研究院有限公司 | Flood-releasing-structure aeration structure |
| CN107558450A (en) * | 2017-10-20 | 2018-01-09 | 中国电建集团成都勘测设计研究院有限公司 | Cavity type chooses bank structure |
| CN108330897A (en) * | 2018-02-07 | 2018-07-27 | 四川大学 | A kind of automatic filling device for eliminating local depression |
| CN108487272A (en) * | 2018-04-03 | 2018-09-04 | 四川大学 | A kind of method of ventilate anti-washing structure and the protection against erosion of overflow cofferdam |
| CN110629728A (en) * | 2019-09-11 | 2019-12-31 | 南昌工程学院 | Pipeline impact jet flow uniform aeration generating device |
| CN111719516A (en) * | 2020-07-01 | 2020-09-29 | 四川大学 | double-WoQicurve type bottom aeration facility for inhibiting cavity backwater |
| CN115478499A (en) * | 2022-09-22 | 2022-12-16 | 武汉市园林建筑工程有限公司 | Rectification structure for improving water outlet flow state of arc-shaped drainage box culvert |
-
2014
- 2014-03-28 CN CN201420158002.9U patent/CN203808026U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155486A (en) * | 2015-10-14 | 2015-12-16 | 中国电建集团成都勘测设计研究院有限公司 | Flood-releasing-structure aeration structure |
| CN107558450A (en) * | 2017-10-20 | 2018-01-09 | 中国电建集团成都勘测设计研究院有限公司 | Cavity type chooses bank structure |
| CN107558450B (en) * | 2017-10-20 | 2023-08-22 | 中国电建集团成都勘测设计研究院有限公司 | Cavity type flip bucket structure |
| CN108330897A (en) * | 2018-02-07 | 2018-07-27 | 四川大学 | A kind of automatic filling device for eliminating local depression |
| CN108487272A (en) * | 2018-04-03 | 2018-09-04 | 四川大学 | A kind of method of ventilate anti-washing structure and the protection against erosion of overflow cofferdam |
| CN110629728A (en) * | 2019-09-11 | 2019-12-31 | 南昌工程学院 | Pipeline impact jet flow uniform aeration generating device |
| CN110629728B (en) * | 2019-09-11 | 2020-12-01 | 南昌工程学院 | Pipeline impact jet flow uniform aeration generating device |
| CN111719516A (en) * | 2020-07-01 | 2020-09-29 | 四川大学 | double-WoQicurve type bottom aeration facility for inhibiting cavity backwater |
| CN115478499A (en) * | 2022-09-22 | 2022-12-16 | 武汉市园林建筑工程有限公司 | Rectification structure for improving water outlet flow state of arc-shaped drainage box culvert |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |