CN205171449U - Novel formula drop dissipation structure directly falls - Google Patents
Novel formula drop dissipation structure directly falls Download PDFInfo
- Publication number
- CN205171449U CN205171449U CN201521009898.5U CN201521009898U CN205171449U CN 205171449 U CN205171449 U CN 205171449U CN 201521009898 U CN201521009898 U CN 201521009898U CN 205171449 U CN205171449 U CN 205171449U
- Authority
- CN
- China
- Prior art keywords
- conservancy diversion
- water conservancy
- drop
- settling tank
- bank
- 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
Links
Landscapes
- Revetment (AREA)
Abstract
The utility model relates to a novel formula drop dissipation structure directly falls, including the energy dissipation groove and the waterwall that fall bank and in drop low reaches river course set up of setting at the drop upper reaches, the bottom embedding riverbed of waterwall, the middle part is provided with three rows of water conservancy diversion holes, and upper portion is equipped with out -of -the -way water convex arc face, energy dissipation groove exit is provided with water conservancy diversion tail bank, and water conservancy diversion tail bank includes the upstream face, meets water convex arc face and back of the body water concave arc face, back of the body water concave arc face and the smooth connection of low reaches river course. The utility model discloses an energy dissipation groove, breakwater and water conservancy diversion tail bank combine together, make rivers need overcome the gravity upward movement in the energy dissipation groove and could flow to low reaches smoothly to water conservancy diversion tail bank top, and effects such as rivers take place strong collision at this in -process, cut, circle round have consumed a large amount of energy, the energy dissipation effect salient, can effectually slow down the speed of letting out under the rivers, reduce and erode the destruction of causing for a long time to low reaches, prolong building life, guarantee the long -time safe normal operating of engineering.
Description
Technical field
The utility model belongs to hydraulic engineering technical field, especially belongs to current energy-dissipating tech field in hydraulic engineering technology, and particularly a kind of Novel direct falls formula drop energy-dissipating structure.
Background technology
In mountain area, the ditch of knob, channel, river and overfall dam downstream usually have the generation of drop.Its principal character is that water drop is low, flow is less, long action time.Its harm not obvious at short notice, but due to its long action time, long-time erosion damage just can to develop at the bottom of canal destruction, wash away silt and cause soil erosion, empty drop downstream and cause accidents such as collapsing, destructive large, have a strong impact on the normal operation of engineering.At present the research of drop is mainly concentrated on to the research of fluidised form, for drop energy dissipating form research seldom, therefore to the research of novel drop energy-dissipating structure highly significant, be also extremely necessary.
Utility model content
The utility model discloses a kind of Novel direct according to the deficiencies in the prior art and falls formula drop energy-dissipating structure, its effect of energy dissipation is good, speed is let out under can effectively slowing down current, reduce and the destruction of causing is washed away for a long time to downstream river course, extend the application life of building, ensure that the long-time safety of engineering is normal and run.
The utility model is realized by following scheme:
A kind of Novel direct falls formula drop energy-dissipating structure, and comprise the settling tank falling bank and arrange at drop downstream river course and waterwall that are arranged on drop upstream, the embedding riverbed, bottom of waterwall, middle part is provided with three row's pod apertures, and top is provided with backwater convex globoidal; Settling tank exit is provided with water conservancy diversion tail bank, and water conservancy diversion tail bank comprises upstream face, and meet water convex globoidal and backwater cancave cambered surface, backwater cancave cambered surface and downstream river course smooth connection.
Further improvement as technique scheme:
The degree of depth of described settling tank is 0.5-0.8 times of drop height; The length of settling tank is the twice of the settling tank degree of depth.
The height of described watertight shutter is 1.5-2 times of drop height; The thickness of watertight shutter is 0.1-0.2 times of watertight shutter height.
Described pod apertures aperture is 0.5-0.8 times of watertight shutter thickness; Spacing between adjacent guide hole is equal with pod apertures aperture.
The upstream face height of described water conservancy diversion tail bank is equal with pod apertures aperture.
The central angle of the convex globoidal place cambered surface that meets water of described water conservancy diversion tail bank is 120 °, and radius is 0.5-0.8 times of upstream face height.
The central angle of the backwater cancave cambered surface place cambered surface of described water conservancy diversion tail bank is 30 °-45 °, and radius is 5-8 times of upstream face height.
Helpfulness of the present utility model is: the utility model adopts settling tank, watertight shutter and water conservancy diversion tail bank combine, make current in settling tank, need to overcome gravity to move upward to water conservancy diversion tail bank top and could flow to downstream smoothly, there is the effects such as strong collision, shearing, convolution in this process in current, consume a large amount of energy, effect of energy dissipation is given prominence to; Let out speed under can effectively slowing down current, reduce and the destruction of causing is washed away for a long time to downstream, extend building application life, ensure that the long-time safety of engineering is normal and run.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is that the utility model structure indicates schematic diagram.
Fig. 3 is the longitudinal plan of the utility model watertight shutter, i.e. A-A sectional drawing.
Fig. 4 is the utility model water conservancy diversion tail bank structural representation.
In figure: 1 is fall bank, 2 is settling tanks, and 3 is watertight shutters, and 4 is pod apertures, and 5 is water conservancy diversion tail banks, and 51 is upstream faces of water conservancy diversion tail bank, and 52 is the convex globoidals that meet water of water conservancy diversion tail bank, and 53 is backwater cancave cambered surfaces of water conservancy diversion tail bank; H is drop height, and h1 is the settling tank degree of depth, and L is settling tank length, and h2 is watertight shutter height, t is watertight shutter thickness, and d is pod apertures aperture, and s is pod apertures spacing, h3 is water conservancy diversion tail bank upstream face height, and R1 is that water conservancy diversion tail bank meets water convex globoidal radius, and R2 is water conservancy diversion tail bank backwater cancave cambered surface radius.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further.Present embodiment is only for being further described the utility model; the restriction to the utility model protection domain can not be interpreted as; those skilled in the art can make some nonessential improvement and adjustment according to foregoing, but still belongs to protection domain of the present utility model.
Fig. 1 to Fig. 4 forms specific embodiment of the utility model.
Referring to figs. 1 through Fig. 4, a kind of Novel direct of the present embodiment falls formula drop energy-dissipating structure, comprise be arranged on drop upstream fall bank 1, settling tank 2 in drop downstream river course, settling tank 2 centre position is provided with watertight shutter 3, embeds in riverbed bottom watertight shutter 3, and middle part is provided with three row's pod apertures 4; Settling tank 2 exit is provided with water conservancy diversion tail bank 5, and by upstream face 51, meet water convex globoidal 52, and backwater cancave cambered surface 53 3 sections formation; Upstream face 51 is vertically arranged planes, with meet water convex globoidal 52 and backwater cancave cambered surface 53 in smoothing junction successively, backwater cancave cambered surface 53 is in smoothing junction with downstream river course.
The degree of depth h1 of settling tank 2 is 0.5-0.8 times of drop height H; The length L of settling tank 2 is the twice of the settling tank degree of depth.
The height h2 of watertight shutter 3 is 1.5-2 times of drop height H; The thickness t of watertight shutter is 0.1-0.2 times of watertight shutter height.
Pod apertures 4 aperture d is 0.5-0.8 times of watertight shutter 3 thickness t; Distance s between adjacent guide hole 4 is equal with pod apertures 4 aperture d.
The upstream face 51 height h3 of water conservancy diversion tail bank 5 is equal with pod apertures 4 aperture d.
The central angle of the convex globoidal 52 place cambered surface that meets water of water conservancy diversion tail bank 5 is 120 °, and radius R 1 is 0.5-0.8 times of upstream face height h3.
The central angle of the backwater cancave cambered surface 53 place cambered surface of water conservancy diversion tail bank 5 is 30 °-45 °, and radius is 5-8 times of upstream face height h3.
Streamflow stably flows to settling tank 2 in downstream river course through falling bank 1, in the first half section of settling tank 2, the effects such as strong rotation, collision, shearing occurs, reduces the energy of current; The layout of watertight shutter 3, makes current directly can not flow into downstream by water conservancy diversion tail bank 5, can only be flowed into the second half section of settling tank 2 by the pod apertures 4 offered in watertight shutter 3; Meanwhile, watertight shutter 3 can also raise the water level of settling tank 2 first half section current; The elevation exported due to settling tank 2 is lower than the elevation of water conservancy diversion tail bank 5, water conservancy diversion tail bank 5 crest level is again lower than watertight shutter 3 crest level, therefore the differential water pressures formed before and after watertight shutter 3 can make the current of settling tank 2 second half section move upward, and flows into downstream by water conservancy diversion tail bank 5; In this process, while the effects such as current collide in settling tank 2, rotation, also will overcome gravity acting, a large amount of energy consuming current, effectively reduce the speed in flow direction downstream, effect of energy dissipation is given prominence to.
The utility model adopts settling tank, watertight shutter and water conservancy diversion tail bank combine, make current in settling tank, need to overcome gravity to move upward to water conservancy diversion tail bank top and could flow to downstream smoothly, there is the effects such as strong collision, shearing, convolution in this process in current, consume a large amount of energy, effect of energy dissipation is given prominence to; Let out speed under can effectively slowing down current, reduce and the destruction of causing is washed away for a long time to downstream, extend building application life, ensure that the long-time safety of engineering is normal and run.
Claims (7)
1. a Novel direct falls formula drop energy-dissipating structure, comprise be arranged on drop upstream fall bank (1), settling tank (2) in drop downstream river course, settling tank (2) centre position is provided with watertight shutter (3), it is characterized in that: watertight shutter (3) bottom embeds in riverbed, and middle part is provided with three row's pod apertures (4); Settling tank (2) exit is provided with water conservancy diversion tail bank (5), it is characterized in that: by upstream face (51), the convex globoidal that meets water (52), and backwater cancave cambered surface (53) three sections formation; Upstream face (51) is a vertically arranged plane, and with the convex globoidal that meets water (52) and backwater cancave cambered surface (53) smooth connection successively, backwater cancave cambered surface (53) is in smoothing junction with downstream river course.
2. fall formula drop energy-dissipating structure according to a kind of Novel direct according to claim 1, it is characterized in that: the degree of depth (h1) of described settling tank (2) is 0.5-0.8 times of drop height (H); The twice that the length (L) of settling tank (2) is settling tank (2) degree of depth (h1).
3. fall formula drop energy-dissipating structure according to a kind of Novel direct according to claim 1, it is characterized in that: the height (h2) of described watertight shutter (3) is 1.5-2 times of drop height (H); The thickness (t) of watertight shutter (3) for watertight shutter (3) highly (h2) 0.1-0.2 doubly.
4. fall formula drop energy-dissipating structure according to a kind of Novel direct according to claim 1, it is characterized in that: the 0.5-0.8 that described pod apertures (4) aperture (d) is watertight shutter (3) thickness (t) doubly; Spacing (s) between adjacent guide hole (4) is equal with pod apertures (4) aperture (d).
5. fall formula drop energy-dissipating structure according to a kind of Novel direct according to claim 1, it is characterized in that: the upstream face (51) of described water conservancy diversion tail bank (5) highly (h3) is equal with pod apertures (4) aperture (d).
6. fall formula drop energy-dissipating structure according to a kind of Novel direct according to claim 1, it is characterized in that: the central angle of the convex globoidal that meets water (52) the place cambered surface of described water conservancy diversion tail bank (5) is 120 °, radius (R1) for upstream face (51) highly (h3) 0.5-0.8 doubly.
7. fall formula drop energy-dissipating structure according to a kind of Novel direct according to claim 1, it is characterized in that: the central angle of backwater cancave cambered surface (53) the place cambered surface of described water conservancy diversion tail bank (5) is 30 °-45 °, radius (R2) for upstream face (51) highly (h3) 5-8 doubly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009898.5U CN205171449U (en) | 2015-12-09 | 2015-12-09 | Novel formula drop dissipation structure directly falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521009898.5U CN205171449U (en) | 2015-12-09 | 2015-12-09 | Novel formula drop dissipation structure directly falls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205171449U true CN205171449U (en) | 2016-04-20 |
Family
ID=55735456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521009898.5U Expired - Fee Related CN205171449U (en) | 2015-12-09 | 2015-12-09 | Novel formula drop dissipation structure directly falls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205171449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862684A (en) * | 2016-06-03 | 2016-08-17 | 国网新疆电力公司疆南供电公司 | Grille energy-dissipation type flood discharge device |
-
2015
- 2015-12-09 CN CN201521009898.5U patent/CN205171449U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105862684A (en) * | 2016-06-03 | 2016-08-17 | 国网新疆电力公司疆南供电公司 | Grille energy-dissipation type flood discharge device |
| CN105862684B (en) * | 2016-06-03 | 2018-10-09 | 国网新疆电力公司疆南供电公司 | Grid energy dissipation type flood discharge device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103266583B (en) | Bent slope underflow energy dissipation structure of water conservancy and hydropower engineering | |
| CN203256706U (en) | Underflow energy dissipation structure of broken slope in hydraulic and hydroelectric projects | |
| CN106480851A (en) | A kind of mud-rock flow filtration system step by step | |
| CN210002360U (en) | kinds of mountain gorge damming flood discharge structure | |
| CN106498909B (en) | For spillway on bank or the defrlector bucket of flood discharge hole outlet | |
| CN204982814U (en) | Power that disappears structure in low water head dam low reaches riverbed | |
| CN205171449U (en) | Novel formula drop dissipation structure directly falls | |
| CN106759168A (en) | A kind of generating water diverting structure arrangement for taking into account environmental protection and sand discharge demand | |
| CN204825802U (en) | Compound line type overflow weir | |
| CN203021973U (en) | Sand intercepting groove | |
| CN203594005U (en) | Flood discharge energy dissipater structure applied to high-arch weir body in narrow valley | |
| CN211256912U (en) | Fold-line type flip bucket at outlet of bank spillway/flood discharge tunnel | |
| CN104099908B (en) | Gravity type sand obstructing and guiding structure | |
| CN203821344U (en) | Forward water inlet and sand sluicing flush gallery structure of hydropower station | |
| CN106013009A (en) | Multi-reverse-slope type stilling pool | |
| CN206157656U (en) | Mud -rock flow is filtration system step by step | |
| CN203514275U (en) | Narrow-slit flip bucket structure of release structure in high and steep narrow valley | |
| CN210262967U (en) | Energy dissipation structure of diversion tunnel plug | |
| CN205035778U (en) | Flip trajectory bucket worker | |
| CN204385701U (en) | Be applicable to surface current underflow combined energy dissipater and the water-control project of wide shallow river course porous gate dam | |
| CN201512774U (en) | Bottom hole flood relief and energy dissipation structure | |
| CN210621643U (en) | Utilize rivers effect to arrange by oneself and lead novel pond structure that disappears of grit in pond | |
| CN211690240U (en) | Bottom flow energy dissipation structure for small-opening discharge of gate dam | |
| CN201933471U (en) | Double-layer separation flood discharge structure of side spillway | |
| CN108842734A (en) | Band blocks water the stilling pond or cushion pool of pier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160420 Termination date: 20171209 |