CN201212143Y - Flood discharging steep groove mounted with baffle and still ridge with opposite jet flow - Google Patents
Flood discharging steep groove mounted with baffle and still ridge with opposite jet flow Download PDFInfo
- Publication number
- CN201212143Y CN201212143Y CNU2008200638722U CN200820063872U CN201212143Y CN 201212143 Y CN201212143 Y CN 201212143Y CN U2008200638722 U CNU2008200638722 U CN U2008200638722U CN 200820063872 U CN200820063872 U CN 200820063872U CN 201212143 Y CN201212143 Y CN 201212143Y
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- CN
- China
- Prior art keywords
- discharge chute
- flood discharge
- energy
- water flow
- baffle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a flood discharge chute with baffle ridges which use direct impact of water flow to dissipate energy. The flood discharge chute in characterized in that at least one waved-shaped baffle ridge is arranged in the flood discharge chute along the horizontal direction, and the height of the baffle ridge is lower than the depth of shrinkage water and the height near upper reaches is lower than that of lower reaches. The flood discharge chute is provided with the waved-shaped baffle ridges which can change the flow direction of water flow in the chute and help the water flow to flip; with the self energy of the water flow and air resistance, the discharged water flow causes impact collision in the air, so that the energy dissipation effect can be achieved so as to reduce the energy dissipation pressure and the erosion of the lower reaches of a spillway. The design of the utility model not only extends the adaptive range of the flood discharge chute, but also especially applies to engineering projects with a plurality of joints on foundations of the lower reaches of the flood discharge chute and weak erosion resistant energy.
Description
Technical field
The utility model belongs to the flood discharge chute technical field of being with energy-dissipating installation, is specifically related to a kind of current disappear flood discharge chute of power bank of energy dissipating that liquidates that is provided with.
Background technology
The barrage of building in hydraulic engineering is no matter be that the interception current are used for generating electricity; still tackling the current retaining is used for supplying water, irrigating; all must consider needs when flood comes the exhaustless water yield is carried out the technical measures that wash with watercolours is let out, with the safety of protection power station and reservoir building.It is exactly flood releasing structures such as flood discharging groove, flood discharging tunnel, sluice that these technical measures are embodied in the hydraulic engineering.
In these flood releasing structures, the flood discharge chute is that the reservoir area wash with watercolours is let out unnecessary current a kind of flood releasing structure commonly used.Owing to all multifactor favors that enjoys such as it is built easily, construction cost economy, convenient managements.Even so, but the flood discharge chute requires the chute downstream that good geological conditions will be arranged, thereby in the utilization of flood discharge chute except considering that it should possess enough discharge capacities, also to guarantee its during operation self and to the safety of adjacent structure, and the stream that sluices properly is connected with former streamflow, the energy of stream self of avoiding down sluicing forms excessive impact to the river course, and the safety of barrage dam body and adjacent structure is constituted a threat to.So bad when the geological conditions in bottom land downstream, often be restricted in the design, thereby the energy dissipating of flood discharge chute is the critical bottleneck that the flood discharge chute can be widely used.
Summary of the invention
The purpose of this utility model is intended to solve the energy dissipating of flood discharge chute, and a kind of current disappear flood discharge chute of power bank of energy dissipating that liquidates that is provided with is provided, and thinks that it can extensive use open bottleneck in the water construction thing.
Be a kind of current the disappear flood discharge chute of power bank of energy dissipating that liquidates that is provided with that reaches that the utility model purpose provides, it is characterized in that along continuous straight runs is provided with the power that the disappears bank that is the setback shape at least together in this flood discharge chute, and the height of the power that disappears bank must be lower than the flood discharge chute depth of water, the current that so just can remain in the chute are torrent, thereby guarantee that current can arrive in the air in flip shot, reach best effect of energy dissipation
This power that disappears bank short, that be the setback shape is set in the flood discharge chute, the one, can cause the partial water flow resistance; The 2nd, can utilize the resistance of air with the current flip shot to aerial, eliminate the kinetic energy of current; The 3rd, the setback shape that utilizes the power bank arrangement that disappears is to change the direction of current, thereby utilize the energy of current self, the stream that sluices is aloft liquidated bump each other, reduce because high water level to the energy that the flow rate of water flow difference that low water stage produced is produced, reaches the effect of energy dissipating.
If the flood discharge chute is very long, generally speaking the energy that will eliminate will be big more, for satisfying the requirement of energy dissipating, the multiple tracks power bank that disappears can be set as required in chute.
In addition, more abundant for the current that guarantee flip shot collision, the setback shape that is that is provided with in the flood discharge chute that the utility model provides disappears in the power bank height near upstream portion less than the height that is positioned at the downstream part.
The utlity model has following advantage:
1, owing to has the power that the disappears bank of setback shape in the flood discharge chute of the utility model design, thereby can change the flow direction of current in the chute and promote current to choose stream, and utilize the energy of current self, relend and use airborne resistance, make down the current of the letting out collision that liquidates aloft, thereby reach the effect of energy dissipating, with the energy dissipating pressure that reduces the flood-relief channel downstream with wash away.
2, the power bank can increase the cross-section of river of current in the flood discharge chute because the setback shape of the utility model design disappears, thereby can further reduce flow rate of water flow, reaches the effect of energy dissipation of chute.
3, the accommodation of flood discharge chute has not only been expanded in design of the present utility model, and downstream the base pitch reason is many also to be specially adapted to the flood discharge chute, the engineering that the antiscour energy is weak.
Description of drawings
Fig. 1 is a main TV structure schematic diagram of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to the sectional structure schematic diagram;
Fig. 3 is the enlarged drawing of the power bank that disappears among Fig. 2.
The specific embodiment
Providing embodiment below in conjunction with accompanying drawing further specifies so that the utility model is made; but given embodiment can not be interpreted as the restriction to the utility model protection domain, thereby the nonessential improvement done according to above-mentioned content of the present utility model and design philosophy of professional and technical personnel and adjust and also should belong to protection domain of the present utility model.
Embodiment
As shown in Figure 1, 2, present embodiment provides current the disappear flood discharge chute of power bank of energy dissipating that liquidates, be provided with the power that the disappears bank 2 that is the setback shape at least together along chute bottom surface horizontal direction in this flood discharge chute 1, present embodiment is the power that the disappears bank 2 that two roads of setting are the setback shape.The disappear height of power bank 2 of per pass should be lower than the depth of water of flood discharge chute 1, and it is near the height Z of upstream portion
1Should be less than the height Z that is positioned at the downstream part
2, see Fig. 3.
Claims (2)
1, a kind of current disappear flood discharge chute of power bank of energy dissipating that liquidates that is provided with it is characterized in that along continuous straight runs is provided with the power that the disappears bank (2) that is the setback shape at least together in this flood discharge chute (1), and the height of the power bank (2) that disappears is lower than flood discharge chute (1) depth of water.
2, a kind of current disappear flood discharge chute of power bank of energy dissipating that liquidates that is provided with according to claim 1 is characterized in that being the setback shape and disappears in the power bank (2) near the height Z of upstream portion
1Less than the height Z that is positioned at the downstream part
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200638722U CN201212143Y (en) | 2008-06-20 | 2008-06-20 | Flood discharging steep groove mounted with baffle and still ridge with opposite jet flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200638722U CN201212143Y (en) | 2008-06-20 | 2008-06-20 | Flood discharging steep groove mounted with baffle and still ridge with opposite jet flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201212143Y true CN201212143Y (en) | 2009-03-25 |
Family
ID=40496310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200638722U Expired - Fee Related CN201212143Y (en) | 2008-06-20 | 2008-06-20 | Flood discharging steep groove mounted with baffle and still ridge with opposite jet flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201212143Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215932A (en) * | 2013-03-19 | 2013-07-24 | 浙江海洋学院 | Flood discharging tunnel pore plate building method |
| CN112031119A (en) * | 2020-09-03 | 2020-12-04 | 中铁二局集团有限公司 | Large-section flood discharge ditch for mountainous terrain and construction method thereof |
-
2008
- 2008-06-20 CN CNU2008200638722U patent/CN201212143Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215932A (en) * | 2013-03-19 | 2013-07-24 | 浙江海洋学院 | Flood discharging tunnel pore plate building method |
| CN103215932B (en) * | 2013-03-19 | 2015-03-18 | 浙江海洋学院 | Flood discharging tunnel pore plate building method |
| CN112031119A (en) * | 2020-09-03 | 2020-12-04 | 中铁二局集团有限公司 | Large-section flood discharge ditch for mountainous terrain and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090325 |