CN209603031U - A kind of patch angle experimental rig applied to slit - Google Patents
A kind of patch angle experimental rig applied to slit Download PDFInfo
- Publication number
- CN209603031U CN209603031U CN201920013141.5U CN201920013141U CN209603031U CN 209603031 U CN209603031 U CN 209603031U CN 201920013141 U CN201920013141 U CN 201920013141U CN 209603031 U CN209603031 U CN 209603031U
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- slit
- patch angle
- overflow
- catch basin
- experimental rig
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Abstract
The utility model discloses a kind of patch angle experimental rig applied to slit, including upstream water tank and downstream catch basin, it is connected between upstream water tank inlet and downstream catch basin water outlet by return pipe, overflow weir is equipped between the upstream water tank and downstream catch basin, overflow weir is equipped with drain tank, drain tank end is equipped with slit, and patch angle is embedded on the abutment wall of slit end, and slit end bottom is equipped with aeration hole；On the one hand utility model device solves conventional on-site test and needs the technical issues of optimizing repeatedly, on the other hand the bad problem of overflow form is overcome, reaches the narrow water flow of beam, concentrate overflow drop point, drop point line is evenly distributed along river is overboard, reduces the effect in riverbed and bank slope erosion damage.
Description
Technical field
The utility model relates to hydraulic and hydroelectric engineering flip trajectory bucket technical fields, are applied to slit in particular to one kind
Patch angle experimental rig.
Background technique
With the operation of the built high dam in China, the dissipation and scouring problem of discharge structure starts to emerge in large numbers, these high dam engineerings
Construction is faced with a series of problems such as river valley is narrow, lower flood discharge flow is big, impact flow velocity height in high-mountain gorge areas mostly, if
Flow condition is poor, and severe persistent is washed away riverbed and two sides side slope, jeopardizes dam safety stable operation.
And for built Energy Dissipation in High Dam erosion control problem, at present mainly using the side of prototype measurement and field test
Formula is built upon on the basis of sacrificing key water control project comprehensive function and carries out, and field test needs optimization energy dissipating repeatedly
Work achievees the purpose that optimize flow condition, and required long period seriously jeopardized the comprehensive benefit of key water control project.
It would therefore be desirable under the premise of optimizing flow condition, and key water control project normal operation is not influenced, on the one hand want
Flow condition can be optimized, protect the stability of underwater bed and bank slope, it is not sacrificial on the other hand on the basis of optimizing flow condition
The comprehensive benefit of domestic animal key water control project.Demand based on problem above and optimization, needs to carry out the model test of prototype, proposes one kind
The flow condition prioritization scheme in model is established, on the one hand ensure that key water control project operates normally, on the other hand, model test energy
Various forms of Flood-relief projects are enough adapted to, which is to establish the wide optimization water flow of simple and practical, economical rationality, applicability
Conditions method lays the foundation.
Summary of the invention
Purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of patch angles applied to slit to test dress
It sets, is applied to hydraulic and hydroelectric engineering flip trajectory bucket field, on the one hand solve the technology that conventional on-site test needs to optimize repeatedly and ask
Topic, on the other hand overcomes overflow form bad, reaches the narrow water flow of beam, concentrates overflow drop point, and drop point line is along overboard point of river
Cloth is uniform, reduces riverbed and bank slope erosion damage.
The utility model is in order to solve the above technical problems, used technical solution is: a kind of applied to slit
Angle experimental rig, including upstream water tank and downstream catch basin are pasted, is led between upstream water tank inlet and downstream catch basin water outlet
Return pipe connection is crossed, overflow weir is equipped between the upstream water tank and downstream catch basin, overflow weir is equipped with drain tank, drain tank
End is equipped with slit, and patch angle is embedded on the abutment wall of slit end, and slit end bottom is equipped with aeration hole.
Preferably, gate is additionally provided at the position that the overflow weir is connect with upstream water outlet of water tank.
Preferably, the return pipe is equipped with suction pump.
Preferably, the wetted surfaces at the patch angle are tiltedly to face directly or curved-surface structure.
Preferably, patch angle is embedded on the two sides abutment wall of slit end.
The utility model has the beneficial effects that utility model device on the one hand solve conventional on-site test need it is repeatedly excellent
On the other hand the technical issues of change, overcomes the bad problem of overflow form, reach the narrow water flow of beam, concentrates overflow drop point, falls
Point line is evenly distributed along river is overboard, reduces the effect in riverbed and bank slope erosion damage.
Detailed description of the invention
Fig. 1 is a kind of half section schematic of patch angle experimental rig applied to slit；
Fig. 2 is the enlarged structure schematic diagram of aeration hole region in Fig. 1；
In figure, upstream water tank 1, return pipe 3, overflow weir 4, drain tank 5, slit 6, patch angle 7, is mixed downstream catch basin 2
Stomata 8, gate 9, suction pump 10.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As illustrated in fig. 1 and 2, a kind of patch angle experimental rig applied to slit, including upstream water tank 1 and downstream are catchmented
Slot 2 is connected between 2 water outlet of 1 water inlet of upstream water tank and downstream catch basin, the upstream water tank 1 and downstream by return pipe 3
Overflow weir 4 is equipped between catch basin 2, overflow weir 4 is equipped with drain tank 5, and 5 end of drain tank is equipped with slit 6, slit
Patch angle 7 is embedded on the abutment wall of 6 ends, 6 end bottom of slit is equipped with aeration hole 8.
Preferably, gate 9 is additionally provided at the position that the overflow weir 4 is connect with 1 water outlet of upstream water tank.Gate 9 can be with
The opening and closing for controlling 1 water outlet of upstream water tank, to control into the water flow on the drain tank 5 of overflow weir 4.
Preferably, the return pipe 3 is equipped with suction pump 10.It can be by the water in downstream catch basin 2 by suction pump 10
It draws back to upper water case 1.
Preferably, the wetted surfaces at the patch angle 7 are tiltedly to face directly or curved-surface structure.In the present embodiment, curved-surface structure can
To be circular arc camber, oval arc surface, hyperboloid or other complicated space curved surfaces, by adjusting patch 7 position of angle and flow table is crossed
Face shape makes it achieve the purpose that the narrow water flow of beam, overflow drop point are concentrated, drop point line is evenly distributed along river is overboard as far as possible.
Preferably, patch angle 7 is embedded on the two sides abutment wall of 6 end of slit.In the present embodiment, the arrangement at angle 7 is pasted
Mode can be single patch angle, be embedded in a certain side wall of slit 6, or double applying angle or disymmetry patch angle are embedded
Within the walls in the two sides of slit 6.In addition it can be deflected according to prototype overflow with spread condition in the present embodiment and determine patch angle 7
Deflection angle and arrangement, be biased to left bank and right bank for single overflow, drop point line is evenly distributed along river is overboard,
In the abutment wall for then only needing to be embedded in the left side or the right slit 6；If only exist drop point line along river it is overboard distribution not
Uniformly, then angle-style formula is pasted using disymmetry；It is unevenly distributed if there is overflow deflection there is also drop point lines along river is overboard,
Double applying angle-style formula is then used, i.e. the right and left patch angle angle is inconsistent.
The present embodiment working principle is as follows:
It is built on the basis of prototype hydraulic engineering by similarity principle, does not influence key water control project normal operation and comprehensive effect
Benefit is chosen secondly, being unevenly distributed problem along river is overboard according to the deflection of prototype hydraulic engineering overflow and drop point line in narrow slit
Local optimum transformation is carried out on the basis of bank, angle apparatus is pasted using curved surface, by model test by adjusting the arrangement side at patch angle
Formula, deflection angle and wetted surfaces character reach optimal flow condition, make to choose bank overflow and laterally liquidate along river, Zong Xianghe
Vertical diffusion, transversely on, under the effect of patch angle, the narrow water flow of beam and lateral impact energy dissipating can eliminate part energy, along longitudinal direction
On vertical, overboard overflow forms a narrow and long area on riverbed, and unfolded length is almost approached with the head chosen on bank,
On the one hand it extends and chooses into water away from increasing the contact surface between water stock and air, water stock is on the other hand made sufficiently to rub with air
Energy dissipating, the energy per unit area for entering water along length are evenly distributed, and generally, solve the problems, such as field test repeatedly, overcome overflow
The bad problem of form, reach the narrow water flow of beam, concentrate overflow drop point, drop point line is evenly distributed along river is overboard, mitigate riverbed
With the effect of bank slope erosion damage.
In addition in the present embodiment, following factor is considered in the design in aeration hole: slit end flow velocity is high, is easy shape
At negative pressure, wetted surfaces are easy to be prevented the generation of cavitation corrosion with aeration ftercompction, aeration by aeration hole by cavitation erosion, be subtracted
Few destruction to hydraulic structure.
The above embodiments are only the optimal technical scheme of the utility model, and are not construed as the limit for the utility model
System, the features in the embodiments and the embodiments of the present application in the absence of conflict, can mutual any combination.This is practical new
The protection scope of type should be with the technical solution of claim record, technical characteristic in the technical solution recorded including claim
Equivalents are protection scope.Equivalent replacement i.e. within this range is improved, also the protection scope of the utility model it
It is interior.
Claims (5)
1. a kind of patch angle experimental rig applied to slit, including upstream water tank (1) and downstream catch basin (2), upper water
It is connect between case (1) water inlet and downstream catch basin (2) water outlet by return pipe (3), it is characterised in that: the upstream water tank
(1) overflow weir (4) are equipped between downstream catch basin (2), overflow weir (4) is equipped with drain tank (5), and drain tank (5) end is set
Have slit (6), patch angle (7) is embedded on the abutment wall of slit (6) end, slit (6) end bottom, which is equipped with, mixes
Stomata (8).
2. a kind of patch angle experimental rig applied to slit according to claim 1, it is characterised in that: the overflow
Gate (9) are additionally provided at the position that weir (4) is connect with upstream water tank (1) water outlet.
3. a kind of patch angle experimental rig applied to slit according to claim 1, it is characterised in that: the return water
It manages (3) and is equipped with suction pump (10).
4. a kind of patch angle experimental rig applied to slit according to claim 1, it is characterised in that: the patch angle
(7) wetted surfaces are tiltedly to face directly or curved-surface structure.
5. a kind of patch angle experimental rig applied to slit according to claim 1, it is characterised in that: slit
(6) patch angle (7) is embedded on the two sides abutment wall of end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920013141.5U CN209603031U (en) | 2019-01-04 | 2019-01-04 | A kind of patch angle experimental rig applied to slit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920013141.5U CN209603031U (en) | 2019-01-04 | 2019-01-04 | A kind of patch angle experimental rig applied to slit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209603031U true CN209603031U (en) | 2019-11-08 |
Family
ID=68398545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920013141.5U Expired - Fee Related CN209603031U (en) | 2019-01-04 | 2019-01-04 | A kind of patch angle experimental rig applied to slit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209603031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322907A (en) * | 2021-06-29 | 2021-08-31 | 中国电建集团贵阳勘测设计研究院有限公司 | Drainage aeration system of upper and lower stream intercommunication |
-
2019
- 2019-01-04 CN CN201920013141.5U patent/CN209603031U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322907A (en) * | 2021-06-29 | 2021-08-31 | 中国电建集团贵阳勘测设计研究院有限公司 | Drainage aeration system of upper and lower stream intercommunication |
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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 |
Granted publication date: 20191108 Termination date: 20210104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |