CN203129107U - Split-flow flow-deflecting energy dissipator - Google Patents
Split-flow flow-deflecting energy dissipator Download PDFInfo
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- CN203129107U CN203129107U CN 201320099965 CN201320099965U CN203129107U CN 203129107 U CN203129107 U CN 203129107U CN 201320099965 CN201320099965 CN 201320099965 CN 201320099965 U CN201320099965 U CN 201320099965U CN 203129107 U CN203129107 U CN 203129107U
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Abstract
The utility model relates to a split-flow flow-deflecting energy dissipator for protecting hydraulic and hydro-power engineering junction buildings such as dams and sluices. The split-flow flow-deflecting energy dissipator comprises a curve discharge chute connected between a bank side sluicing building exit and a downstream river channel and composed of two curve side walls and a base plate. A section of straight wall with the curve surface is connected with an inner lateral side of a downstream exit section of curve outer side walls, a triangular attaching body is arranged between the inner top and an outer side line of the straight wall with the curve surface, and a sill with cantilever coping is arranged at an exit section of the curve discharge chute transversely. By means of curve water flow movement principle, water flow discharged through a curve is divided into two parts according to a required ratio, one part of the water flow is dropped into a downstream river channel in a flow deflecting mode according to a required guiding angle through the curve discharge chute, and the other part of the water flow crosses the curve straight wall according to the intention of designers to be diffused along the triangular attaching body towards the downstream to drop into the downstream river channel finally. The split-flow flow-deflecting energy dissipator has the advantage of being reasonable in structure, powerful, good in flexibility and easy to popularize and use.
Description
Technical field
The utility model belongs to Hydraulic and Hydro-Power Engineering facility technology field, relates to a kind of for the shunting trajectory bucket type energy that ensures Hydraulic and Hydro-Power Engineering pivot building thing safety such as dam, sluice.
Background technology
In the waterpower design of Hydraulic and Hydro-Power Engineering outlet structure escape works, flood-discharge energy-dissipating is one of its main key technology or great technical barrier all the time.This is not only because the engineering cost of flood-discharge energy-dissipating building is bigger, also can prevent from carrying the following sluicing stream degradation riverbed of huge energy and the river levee that destroys by rush of water owing to dealing carefully with the flood-discharge energy-dissipating problem simultaneously, even the safety that makes outlet structure escape works be subjected to erosion damage and then jeopardize pivot building things such as dam.Outlet structure escape works downstream waterpower is designed; one of its main task just is to select suitable energy dissipating measure (energy dissipater); make it to eliminate complementary energy in the downstream in than short distance, and make down the high speed concentrated flow of letting out to change the normal unhurried current in downstream safely into, to guarantee the safety of building.
A kind of basic energy dissipating type in the existing energy dissipating measure is to choose the streaming energy dissipating, its principle is the basis bigger characteristics of the sluicing energy of flow down, utilize flip bucket energy dissipater's structural shape, arrive the impelling of current elder generation aerial, make it then after the outlet of distance dam site or outlet structure escape works falls into the riverbed at a distance, be connected mutually with the downstream current, this kind mode is called chooses the stream linking.When choosing the stream linking, current are thrown in the air through flip bucket, mix a large amount of air, form the overflow of diffusion gradually, fall into after the water body of downstream, overflow continues diffusion, and form two before and after the main flow and revolve and roll, then wash away the riverbed during greater than the riverbed impact resistance when the scouring capability that slips into the water thigh and form and dash the hole; When reaching certain depth towards the hole, the complementary energy overwhelming majority of current is consumed in the turbulent fluctuation friction of underground water body, at this moment dashes hole maintenance stable state.So utilize overflow aloft with the downstream water cushion in energy dissipating, two because current are chosen from building as far as possible, fall into the safety that building also can not be jeopardized in the hole of dashing behind the riverbed.
Engineering structures is simple, engineering quantity is little though present traditional type trajectory bucket type energy well known in the art has, reduced investment, need not to build a large amount of riverbed preventive works and be convenient to plurality of advantages such as maintenance, but in actual applications, still also have function inadequately powerful, application form is dull, the dissatisfactory defective of horizontal proliferation track of and outgoing current strong to following sluicing conductance tropism, restricted applying of flip trajectory bucket to a certain extent, therefore still awaited its structure is made further improvement and perfect.
The utility model content
The purpose of this utility model is prior art is made further improvement, provides that a kind of project organization more becomes reasonable, powerful, flexibility is good, is easy to the shunting trajectory bucket type energy that obtains applying.
The technical solution that be used for to realize the foregoing invention purpose is such: the shunting trajectory bucket type energy that provides comprises that a bend of being made up of both sides bend abutment wall and base plate that is connected between the outlet of bank outlet structure escape works and downstream river course lets out groove, the medial surface of abutment wall lower exit section picks out one section end face and is lower than abutment wall wall height and the generous curved surface stalk of afterbody outside bend, it is fit to be provided with in one low outer high triangle in the medial roof of curved surface stalk between sideline, the outside, lets out groove outlet section place at bend and is horizontally set with the protruding bank of choosing of letting out trough floor in bend of end face height one.
Technical solution of the present utility model also comprises: the triangle sticker surface is tapered plane or warp surface.
Technical solution of the present utility model also comprises: triangle is fit goes up the wall top with the outer abutment wall of bend along the line wall concordant or that be lower than the outer abutment wall of bend and pushes up.
Technical solution of the present utility model also comprises: the bank of choosing of letting out the setting of groove outlet section place at bend is formed by the circular arc base plate.
Technical solution of the present utility model also comprises: the bank of choosing of letting out at bend that groove outlet section place arranges is that the trapezoidal cross-section on slope forms by the surface.
The shunting trajectory bucket type energy that the utility model proposes mainly is applicable to deep hole or the bottom outlet of bank outlet structure escape works such as bank flood spillway, bank flood discharging tunnel, arch dam, is particularly useful for the outlet work that the sluice way outlet needs current deflecting.This shunting trajectory bucket type energy utilizes bend water movement principle, by the particular design to bend abutment wall build, to be divided into two parts by the current ratio on demand of letting out under the bend, a part is let out groove by bend, and the bank of choosing of guiding angle on demand and rational stalk height and end thereof makes current fall into downstream river course to choose the stream mode; Another part current are then crossed the bend stalk according to designer's intention and are done diffusion motion downstream and finally fall in downstream river course along the triangle of definite shape is fit.
Compare with traditional trajectory bucket type energy, shunting trajectory bucket type energy described in the utility model has used the characteristics of motion of bend current more fully, not only build is simple for it, also flexible and changeable, compliance is very strong, its biggest advantage one is that following sluicing stream is had stronger guidance quality, the 2nd, the outgoing current have comparatively ideal horizontal proliferation, it not only can more easily solve dashing the position, hole and dashing the problem of cheating the degree of depth of engineering care like this, and to alleviating the circulating flow strength of downstream river course, water level fluctuation, the riverbank scour has bigger contribution, function (mainly being current deflecting and current horizontal proliferation sexual function) is also more powerful, thereby have good practicality and a bigger economy, can realize well that designer's intention is (as the shape of overflow, dash the position in hole etc.), very easily obtain promotion and application.
Description of drawings
Fig. 1 is bowing to the plane structure schematic diagram of an embodiment of the utility model.
Fig. 2 is the side direction structural representation of Fig. 1.
Fig. 3 is the A-A generalized section of Fig. 1.
Fig. 4 is the B-B generalized section of Fig. 1.
Each numeral or alphabetical label are represented respectively in the accompanying drawing: abutment wall in the 1-bend, and 2-chooses bank, and the 3-triangle is fit, the outer abutment wall of 4-bend, 5-curved surface stalk; H1-curved surface stalk upstream extremity height, h2-curved surface stalk downstream height, the fit terminal height of h3-triangle, the terminal height of h4-exterior wall, hk-chooses the bank height, ht-B-B section triangle sticker height degree, and bk1-chooses bank top width degree, bk2-chooses bank bottom width degree, D1-B-B section curved surface stalk thickness, D2-energy dissipater outside wall thickness degree, abutment wall arc radius in the R1-, R2-curved surface stalk arc radius, R3-exterior wall arc radius.
The specific embodiment
Below with reference to accompanying drawing the utility model content is described further, but concrete form of implementation of the present utility model is not limited in following embodiment.
Referring to accompanying drawing, shunting trajectory bucket type energy described in the utility model comprise one be connected between bank outlet structure escape works outlets and downstream river course by bend in abutment wall 4 and base plate are formed outside the abutment wall 1, bend bend let out groove, the medial surface of abutment wall 4 lower exit sections picks out one section curved surface stalk 5 outside bend, it is fit 3 to be provided with triangle high outside low in the medial roof of curved surface stalk 5 between sideline, the outside, lets out groove outlet section place (being that bend is let out the groove end) at bend and has been horizontally set with and has chosen bank 2 together.
In above-mentioned project organization, abutment wall 1 can become with the outer abutment wall 4 inboard stalks of bend to parallel circular curve shape stalk in the bend, also can make to make and let out the wide circular curve shape stalk along the journey diffusion of bottom land; The position of abutment wall 1 can be determined by the general arrangement of this sluice way in the bend, under the situation of abutment wall basic geology conditions permit, this section is made diffused, with the discharge per unit width that reduces to sluice and flow down, the height of abutment wall can calculate definite by conventional waterpower in the bend as far as possible.Bend is let out the groove outlet section and is chosen the build of bank 2 and can adopt traditional continuous flip bucket computational methods to determine, this is chosen bank 2 and can be formed by the circular arc base plate, can be that the trapezoidal cross-section on slope forms by upstream face also.Result of study shows, chooses bank the two all can be selected for use though broken line type is chosen bank and circular curve type, and the former is stronger to the horizontal proliferation effect of current.The radius R 2 of the inboard round surface stalk 5 of the outer abutment wall 4 of bend can be determined according to designer's intention and in conjunction with landform and the geological conditions of downstream river course, its principle is under overflow falls some the situation away from bank and important building, guide angle is selected low-angle as far as possible for use, be that circular curve radius R2 takes higher value, so that current are gone into groove smoothly, reduce the river course range of circulating flow; The curved surface stalk 5 of outer abutment wall 4 inboards of bend highly still will determine in conjunction with concrete engineering is actual, considers that mainly bend lets out the assignment of traffic ratio of groove and triangle fit 3, realizes that the horizontal water distribution of overflow is even, thereby reduces towards cheating the degree of depth.There are two aspects the bend outside build of side triangle fit 3 within the walls, and the one, the fit end face form of triangle, the 2nd, triangle sticker is external along height.The former both can select warp surface for use, also can select tapered plane for use, determined that as the case may be principle is simple as far as possible.For the latter, because fit surface gradient not only influences the shunting ratio, also influential to the current diffusion, thereby should not be too high, be that the going up of triangle fit 3 (h2+ht) along the line is concordant with the wall top (h4) of the outer abutment wall 4 of bend or be lower than the wall top (h4) of the outer abutment wall 4 of bend, the wall that generally is lower than the outer abutment wall 4 of bend pushes up (h4).
Claims (5)
1. shunting trajectory bucket type energy, comprise that a bend of being made up of both sides bend abutment wall and base plate that is connected between bank outlet structure escape works outlets and downstream river course lets out groove, the medial surface that it is characterized in that abutment wall outside bend (4) lower exit section picks out one section end face and is lower than abutment wall wall height and the generous curved surface stalk (5) of afterbody, to between sideline, the outside, be provided with low outer high triangle fit (3) in the medial roof of curved surface stalk (5), let out groove outlet section place at bend and be horizontally set with that one end face height is protruding chooses bank (2) in what bend was let out trough floor.
2. shunting trajectory bucket type energy according to claim 1 is characterized in that triangle fit (3) surface is tapered plane or warp surface.
3. shunting trajectory bucket type energy according to claim 1, the wall that it is characterized in that going up of triangle fit (3) the wall top with the outer abutment wall (4) of bend along the line is concordant or be lower than the outer abutment wall (4) of bend pushes up.
4. shunting trajectory bucket type energy according to claim 1 is characterized in that the bank (2) of choosing of letting out the setting of groove outlet section place at bend is formed by the circular arc base plate.
5. shunting trajectory bucket type energy according to claim 1 is characterized in that the bank (2) of choosing of letting out at bend that groove outlet section place arranges is that the trapezoidal cross-section on slope forms by the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320099965 CN203129107U (en) | 2013-03-05 | 2013-03-05 | Split-flow flow-deflecting energy dissipator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320099965 CN203129107U (en) | 2013-03-05 | 2013-03-05 | Split-flow flow-deflecting energy dissipator |
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| CN203129107U true CN203129107U (en) | 2013-08-14 |
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| CN 201320099965 Expired - Fee Related CN203129107U (en) | 2013-03-05 | 2013-03-05 | Split-flow flow-deflecting energy dissipator |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405009A (en) * | 2014-11-17 | 2015-03-11 | 四川农业大学 | Simple cistern rainwater collecting system |
| CN104452689A (en) * | 2014-11-11 | 2015-03-25 | 广东省水利水电科学研究院 | Surface flow and bottom flow combined energy dissipater suitable for wide and shallow river channel multi-hole gate dam |
| CN105369783A (en) * | 2015-10-01 | 2016-03-02 | 中国水利水电科学研究院 | Flip bucket |
| RU2630899C1 (en) * | 2016-05-04 | 2017-09-14 | Михаил Иванович Голубенко | Connection joint of open watercourses |
| CN107881994A (en) * | 2017-12-08 | 2018-04-06 | 大连理工大学 | A kind of special-shaped guiding device for flood discharging groove of turning |
| CN109706899A (en) * | 2018-11-21 | 2019-05-03 | 中国电建集团成都勘测设计研究院有限公司 | Chamfer skew bucket structure |
| CN109750641A (en) * | 2019-02-20 | 2019-05-14 | 中国电建集团北京勘测设计研究院有限公司 | Energy dissipation below spillway arragement construction when the difference discharge structure centralized arrangement of hydroelectric project bank |
| CN111997160A (en) * | 2020-08-21 | 2020-11-27 | 四川大学 | Rectangular pipeline bottom plate water conservancy diversion structure of quarter turn |
| CN112095554A (en) * | 2020-08-26 | 2020-12-18 | 四川大学 | Combined type lifting and falling flow bucket suitable for narrow and deep river valley |
| CN109750641B (en) * | 2019-02-20 | 2024-04-26 | 中国电建集团北京勘测设计研究院有限公司 | Outlet energy dissipation arrangement structure for concentrated arrangement of different water discharge buildings on water and electricity engineering bank |
-
2013
- 2013-03-05 CN CN 201320099965 patent/CN203129107U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452689A (en) * | 2014-11-11 | 2015-03-25 | 广东省水利水电科学研究院 | Surface flow and bottom flow combined energy dissipater suitable for wide and shallow river channel multi-hole gate dam |
| CN104452689B (en) * | 2014-11-11 | 2017-01-11 | 广东省水利水电科学研究院 | Surface flow and bottom flow combined energy dissipater suitable for wide and shallow river channel multi-hole gate dam |
| CN104405009A (en) * | 2014-11-17 | 2015-03-11 | 四川农业大学 | Simple cistern rainwater collecting system |
| CN105369783A (en) * | 2015-10-01 | 2016-03-02 | 中国水利水电科学研究院 | Flip bucket |
| RU2630899C1 (en) * | 2016-05-04 | 2017-09-14 | Михаил Иванович Голубенко | Connection joint of open watercourses |
| CN107881994A (en) * | 2017-12-08 | 2018-04-06 | 大连理工大学 | A kind of special-shaped guiding device for flood discharging groove of turning |
| CN109706899A (en) * | 2018-11-21 | 2019-05-03 | 中国电建集团成都勘测设计研究院有限公司 | Chamfer skew bucket structure |
| CN109750641A (en) * | 2019-02-20 | 2019-05-14 | 中国电建集团北京勘测设计研究院有限公司 | Energy dissipation below spillway arragement construction when the difference discharge structure centralized arrangement of hydroelectric project bank |
| CN109750641B (en) * | 2019-02-20 | 2024-04-26 | 中国电建集团北京勘测设计研究院有限公司 | Outlet energy dissipation arrangement structure for concentrated arrangement of different water discharge buildings on water and electricity engineering bank |
| CN111997160A (en) * | 2020-08-21 | 2020-11-27 | 四川大学 | Rectangular pipeline bottom plate water conservancy diversion structure of quarter turn |
| CN111997160B (en) * | 2020-08-21 | 2021-04-27 | 四川大学 | Rectangular pipeline bottom plate water conservancy diversion structure of quarter turn |
| CN112095554A (en) * | 2020-08-26 | 2020-12-18 | 四川大学 | Combined type lifting and falling flow bucket suitable for narrow and deep river valley |
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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 |
Granted publication date: 20130814 Termination date: 20140305 |