CN203821342U - Local hollow bottom plate shrinkage-type energy dissipator - Google Patents
Local hollow bottom plate shrinkage-type energy dissipator Download PDFInfo
- Publication number
- CN203821342U CN203821342U CN201420120422.8U CN201420120422U CN203821342U CN 203821342 U CN203821342 U CN 203821342U CN 201420120422 U CN201420120422 U CN 201420120422U CN 203821342 U CN203821342 U CN 203821342U
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- bottom plate
- shrinkage
- energy dissipator
- base plate
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Abstract
The utility model discloses a local hollow bottom plate shrinkage-type energy dissipator which consists of a bottom plate and two side keel blocks. The local hollow bottom plate shrinkage-type energy dissipator is provided with a non-shrinkage section and a shrinkage section which are interconnected, and is characterized in that the bottom plate is started from the start point of the non-shrinkage section of the energy dissipator and ended between the start point of the shrinkage section and the final point of the shrinkage section; a hollow section is formed at the part, which is not provided with the bottom plate, of the energy dissipator; the lower edge of the water body of the hollow section is communicated with the atmosphere. The local hollow bottom plate shrinkage-type energy dissipator has the advantages that by virtue of improving a traditional shrinkage-type energy dissipator bottom plate, the bottom plate is only arranged at the front section of the energy dissipator, and the residual sections of the energy dissipator are provided with bottom plates, so that the upper and lower edges of the water body of the hollow section without a bottom plate can be communicated with the atmosphere, a free water surface is formed, the shrinkage-type energy dissipator with breathable upper and lower edges of the water body of the hollow section is formed, and the purposes of not only improving the energy consumption rate, but also weakening atomization can be achieved.
Description
Technical field
The utility model relates to a kind of contraction energy dissipator, relates to Hydraulic and Hydro-Power Engineering flood-discharge energy-dissipating field.
Background technology
In water conservancy and hydropower hinge, flip trajectory bucket application is very general, and when height of dam discharge is large, the effect of energy dissipation of flip trajectory bucket is good, arranges also simply, also can reduce investment outlay.Yet, when the flood discharge power of the large flow flood discharge of high dam is increasing, for reducing downstream apron or plunge pool surge, often adopt contraction energy dissipator.Traditional contraction energy dissipator bucket lip is generally comprised of base plate 1 and both sides abutment pier 2, forms non-contraction section L1 and contraction section L, and structure as shown in Figure 1 and Figure 2.Contraction energy dissipator is by the contraction of abutment pier sidewall, force current distortion, strengthen turbulent fluctuation and aeration, form upwards vertical and longitudinally elongate diffusion choose stream fluidised form, disperse overflow upstream face long-pending, what reduce unit area enters water energy, alleviates the washing away of underwater bed, but has also aggravated flood-discharge atomizing thereupon.
Summary of the invention
The utility model object is just to overcome existing defect, provides a kind of effect of energy dissipation well can weaken the contraction energy dissipator of flood-discharge atomizing simultaneously.
The following technical scheme of the concrete employing of the utility model:
A kind of local hollow out base plate contraction energy dissipator, by base plate and both sides abutment pier, formed, there is interconnective non-contraction section and contraction section, it is characterized in that described base plate originates in the non-contraction section starting point of energy dissipater, end between contraction section starting point and contraction section terminal, the part that energy dissipater does not arrange base plate forms the hollow out section that water body lower edge communicates with atmosphere.
The utility model is by the improvement to traditional contraction energy dissipator base plate, only at non-contraction section and contraction section leading portion, base plate is set, at contraction section back segment, base plate is not set, make all can communicate with atmosphere without lower edge on the hollow out section water body of base plate, there is table, form the ventilative contraction energy dissipator of lower edge on hollow out section water body, reached the object that not only improves energy dissipation rate but also weaken atomization.
The beneficial effects of the utility model are:
1, improved energy dissipation rate;
2, can there is not large area higher-pressure region because shrinking in both sides abutment pier water pressure, so abutment pier is subject to lateral thrust little, more durable;
3, the overflow forming is longitudinally pull-shaped very long, but water hat is not high, and its shape is towering unlike cockscomb, and as the broom stretching of hanging low, has reduced the impact force to water cushion pool downstream pool base plate;
4, in energy dissipater hole, fluidised form is steady, is difficult for producing water wing;
5, weaken flood-discharge atomizing, the aerial energy dissipating atomization of overflow raininess is little, and rain belt scope elevation is low, has dwindled atomization diaster prevention and control district;
6, only by the change to base plate, realize, simple in structure, easy to implement.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of traditional contraction energy dissipator structure.
Fig. 2 is the plan view of traditional contraction energy dissipator structure.
Fig. 3 is the A-A sectional view of the contraction energy dissipator of embodiment mono-use.
Fig. 4 is the B-B sectional view of the contraction energy dissipator of embodiment mono-use.
Fig. 5 is the C-C sectional view of the contraction energy dissipator of embodiment mono-use.
Fig. 6 is the trajectory nappe water surface curve schematic diagram of embodiment mono-.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Embodiment mono-
As shown in Figure 3-Figure 5, local hollow out base plate contraction energy dissipator of the present utility model is comprised of the abutment pier 2 of base plate 1 and both sides, has interconnective non-contraction section L1 and contraction section L.Base plate 1 originates in the starting point (starting point that the tie point of energy dissipater and arc-shaped door 3 of take is the non-contraction section L1 of energy dissipater of the non-contraction section L1 of energy dissipater, arc-shaped door 3 signals connect dam flood-discharge mouth and energy dissipater's gate), end between the starting point of contraction section L and the terminal of contraction section L, at energy dissipater's leading portion, be provided with base plate, more than energy dissipater, section does not arrange base plate.Energy dissipater's leading portion here refers to originate in the starting point of the non-contraction section L1 of energy dissipater, ends at a section between the starting point of energy dissipater's contraction section L and the terminal of contraction section L, and the remaining section of energy dissipater refers to the energy dissipater's part except above-mentioned energy dissipater's leading portion.The part that energy dissipater does not arrange base plate forms the hollow out section L2 that water body lower edge communicates with atmosphere.Like this, be positioned at without lower edge on the water body of the hollow out section L2 of base plate and all can communicate with atmosphere, have table.In the utility model, " local hollow out base plate " is for energy dissipater's contraction section L, means contraction section L part and do not establish base plate.
Figure 6 shows that the trajectory nappe water surface curve schematic diagram that adopts above-mentioned contraction energy dissipator to form, like this, be provided with the part of base plate, overflow lower edge contacts with base plate, there is no the hollow out section of base plate, and on overflow, lower edge does not have base plate to contact with it, overflow lower edge communicates with atmosphere, has table.The hatching tilting shown in hollow out section bottom in figure does not represent base plate, but the required drawn schematic lines of structure stress represents other stressed structures, but the not contact with it of overflow lower edge.As seen from Figure 3, because energy dissipater's back segment forms hollow out section without base plate, water body lower edge communicates with atmosphere, overflow lower edge forms the stretching of hanging low, and overflow is longitudinally pull-shaped very long, but water hat is not high, reduced the impact force to water cushion pool downstream pool base plate, reduced again the aerial energy dissipating atomization of overflow raininess, rain belt scope elevation is low, has weakened atomizating phenomenon.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (1)
1. a local hollow out base plate contraction energy dissipator, by base plate and both sides abutment pier, formed, there is interconnective non-contraction section and contraction section, it is characterized in that described base plate originates in the non-contraction section starting point of energy dissipater, end between contraction section starting point and contraction section terminal, the part that energy dissipater does not arrange base plate forms the hollow out section that water body lower edge communicates with atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420120422.8U CN203821342U (en) | 2014-03-17 | 2014-03-17 | Local hollow bottom plate shrinkage-type energy dissipator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420120422.8U CN203821342U (en) | 2014-03-17 | 2014-03-17 | Local hollow bottom plate shrinkage-type energy dissipator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203821342U true CN203821342U (en) | 2014-09-10 |
Family
ID=51476859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420120422.8U Withdrawn - After Issue CN203821342U (en) | 2014-03-17 | 2014-03-17 | Local hollow bottom plate shrinkage-type energy dissipator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203821342U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835270A (en) * | 2014-03-17 | 2014-06-04 | 水利部交通运输部国家能源局南京水利科学研究院 | Hollow-bottom-plate retractable type energy dissipation method and energy dissipater |
| CN111691376A (en) * | 2020-05-09 | 2020-09-22 | 兰州理工大学 | Incompletely-transparent bottom plate contraction type energy dissipater and energy dissipation method |
-
2014
- 2014-03-17 CN CN201420120422.8U patent/CN203821342U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835270A (en) * | 2014-03-17 | 2014-06-04 | 水利部交通运输部国家能源局南京水利科学研究院 | Hollow-bottom-plate retractable type energy dissipation method and energy dissipater |
| CN103835270B (en) * | 2014-03-17 | 2015-09-16 | 水利部交通运输部国家能源局南京水利科学研究院 | Hollow out base plate contraction type energy dissipating method and energy dissipater |
| CN111691376A (en) * | 2020-05-09 | 2020-09-22 | 兰州理工大学 | Incompletely-transparent bottom plate contraction type energy dissipater and energy dissipation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140910 Effective date of abandoning: 20150916 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |