CN103437329A - Combination type high-low threshold stilling pool provided with flow deflecting structure - Google Patents
Combination type high-low threshold stilling pool provided with flow deflecting structure Download PDFInfo
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- CN103437329A CN103437329A CN2013103606983A CN201310360698A CN103437329A CN 103437329 A CN103437329 A CN 103437329A CN 2013103606983 A CN2013103606983 A CN 2013103606983A CN 201310360698 A CN201310360698 A CN 201310360698A CN 103437329 A CN103437329 A CN 103437329A
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Abstract
The invention relates to a combination type high-low threshold stilling pool provided with a flow deflecting structure. The combination type high-low threshold stilling pool provided with the flow deflecting structure comprises a reverse arc flow deflecting structure water flow inlet section composed of high threshold drainage holes and low threshold drainage holes, a stilling pool body connected with the water flow inlet section, a stilling pool tail threshold and a protection apron which is connected with the stilling pool body. The water flow inlet section is designed to be the flow deflecting structure; flip shot angles of outlets of the high and low threshold drainage holes are designed, so that the portion entering the stilling pool body of the outflow from the high threshold drainage holes and the portion entering the stilling pool body of the outflow from the low threshold drainage holes are staggered in different areas, and the effects of dispersion and energy dissipation are achieved; the water receiving surface of the tail threshold is designed to be a WES weir surface curve so that the water flow in the stilling pool body can flow out smoothly, and surge vibration in the stilling pool body is decreased. The combination type high-low threshold stilling pool provided with the flow deflecting structure has the advantages that the combination type energy dissipater structure can decrease and homogenize the impact on the front section of the stilling pool body by downwardly discharged flow, the length of the stilling pool body is fully utilized for dispersion and energy dissipation, and the phenomena of fierce water flow turbulent fluctuation and large water surface fluctuation in a centralized energy dissipation region are eliminated.
Description
Technical field
The present invention relates to the low atomization of high water head in Hydraulic and Hydro-Power Engineering, large discharge per unit width, flood-discharge energy-dissipating technical field efficiently, particularly a kind of New Type Energy Dissipator structure, it has for a kind of a combined type height bank absorption basin of choosing flow structure.
Background technology
High water head, large discharge per unit width flood-discharge energy-dissipating problem are one of the inside of hydraulic engineering difficulty more vital problems.A kind of high and low ridge underflow stilling basin has been proposed in the patent that publication number is CN101215828A; In the patent that publication number is CN101624818A, this high and low ridge underflow stilling basin is improved, adopt differential Split type import, comprise the flow inlet section, the absorption basin joined with the flow inlet section and the protection-apron joined with absorption basin.
When the energy-dissipating installation of this kind of structure makes lower sluicing stream by height bank absorption basin, present the submerged jets state, reduced Bottom Pressure, also can reduce largely the underflow speed in absorption basin, there is higher energy dissipation rate, the absorption basin operation is safer, with respect to other forms of energy dissipater, has significant superiority.
Simultaneously, research is found in the flood discharge process, the first half that the flow inlet section is fallen bank below absorption basin forms strong energy dissipating district, most of concentration of energy dissipates in the first half section, a little less than the energy dissipating of absorption basin latter half, although reached the effect of efficient energy dissipating, do not had the length of utilizing absorption basin cmpletely to carry out energy dissipating; Concentrate energy dissipating district flow turbulence violent, water level fluctuation is larger, has the unsettled problem of fluidised form, also has the possibility of damaging the absorption basin structure, affecting the normal operation of flood releasing structure simultaneously.
Therefore, eliminate the concentrated energy dissipating characteristics of absorption basin, eliminate and concentrate flow turbulence phenomenon violent, that water level fluctuation is larger in energy dissipating district to seem particularly necessary.
In sum, provide the energy dissipating construction of the unfavorable knowledge question of water conservancy that may occur in a kind of effective solution absorption basin safe and stable operation, become those skilled in the art's problem demanding prompt solution.
The information that is disclosed in this background of invention technology part only is intended to deepen the understanding to general background technology of the present invention, and should not be regarded as admitting or imply that in any form this information structure has been prior art known in those skilled in the art.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of energy dissipating construction that can effectively solve the unfavorable knowledge question of water conservancy that may occur in the absorption basin safe and stable operation.
In order to address the above problem, the invention provides a kind of combined type height bank absorption basin of choosing flow structure that has, subduing, the homogenizing letdown flow is to the impact of absorption basin first half section, just under the bank discharge orifice, stagger in sluicing stream longitudinal stretching, subregion, disperse height bank absorption basin first half to concentrate the energy dissipating zone, reach the effect of disperseing energy dissipating along journey, eliminate and concentrate the phenomenon that energy dissipating district flow turbulence is violent, water level fluctuation is larger, design absorption basin tail bank upstream face is WES weir surface curve, reduces the flow induced vibration of absorption basin inside.
A kind of combined type height bank absorption basin of choosing flow structure that has of the present invention, absorption basin, the tail bank of absorption basin rear end and the protection-apron joined with absorption basin that it comprises the flow inlet section, joins with the flow inlet section; Described flow inlet section consists of high bank discharge orifice alternately and the mid-board between low bank discharge orifice and high bank discharge orifice and low bank discharge orifice; Described flow inlet section is that anti-arc is chosen flow structure, the flip shot angle α of described high bank discharge orifice water export
1flip shot angle α with described low bank discharge orifice water export
2the position in subregional interior into absorption basin that go out to flow to that goes out to flow to into the position in absorption basin and low bank discharge orifice that is configured such that high bank discharge orifice staggers.
Preferably, the upstream face of described tail bank is WES weir surface curve.
Preferably, the flip shot angle α of described high bank discharge orifice water export
1flip shot angle α with described low bank discharge orifice water export
2meet following relational expression: α
2≤ α
1≤ 25 °.
Preferably, the surface curve of described high bank discharge orifice and low bank discharge orifice is anti-segmental arc; The anti-segmental arc radius of the anti-segmental arc radius of described high bank discharge orifice and low bank discharge orifice meets following relational expression: R
1≤ R
2; 6h
1≤ R
1≤ 10h
1; 6h
2≤ R
2≤ 10h
2; Wherein, R
1for the anti-segmental arc radius of high bank discharge orifice; R
2for the low anti-segmental arc radius of bank discharge orifice; h
1maximum water depth for the anti-segmental arc minimum point of high bank discharge orifice place; h
2maximum water depth for the low anti-segmental arc minimum point of bank discharge orifice place.
Preferably, described have the combined type height bank absorption basin of choosing flow structure and meet following relational expression: 2d
2≤ 1.5d
1≤ d
3; Wherein, d
1for the height of high bank discharge orifice water export end to the absorption basin base plate, d
2for the height of low bank discharge orifice water export end to the absorption basin base plate, d
3for the height of tail bank top to the absorption basin base plate.
Preferably, the outermost both sides of described flow inlet section are high bank discharge orifice or low bank discharge orifice.
The invention has the beneficial effects as follows:
1, of the present invention have a combined type height bank absorption basin of choosing flow structure, the high and low bank discharge orifice design of current inlet segment is become and chooses flow structure, what make high bank discharge orifice and low bank discharge orifice goes out to flow longitudinal stretching, stagger in the current subregion, pond that enters of high and low bank discharge orifice, reach the effect of disperseing energy dissipating along journey, alleviated and fallen near the inner turbulent fluctuation of the concentrated energy dissipating regional flow of bank acutely and the larger problem of water level fluctuation, safety and the application life of having improved the earial drainage building.
2, of the present invention have the combined type height bank energy dissipater who chooses flow structure and changed the earial drainage curve, lower sluicing stream enters absorption basin after choosing the flow structure section, choose flow structure and let out the rotary roll consumption portion of energy of hole section, and choose to the upper strata water body of absorption basin high-velocity flow is micro-, avoid current directly to impact the absorption basin base plate, the hydraulic indexes such as the Pressure Fluctuation of absorption basin and underflow speed have been reduced to a certain extent, and then weaken flow induced vibration, ensured safe operation and the application life of earial drainage building.
3, the upstream face of tail bank is designed to WES weir surface curve, can make absorption basin water outflow levelling suitable, cuts down the flow induced vibration in absorption basin; And control tail bank height, make the overcurrent section of high and low bank discharge orifice be still submerge discharging flow after choosing flow structure, improve energy dissipating efficiency and alleviated time sluicing stream washing away energy-disspating, can use in the outlet structure escape works of high water head, large discharge per unit width, be applicable to foundation condition poor, in the higher engineering of surrounding environment requirement for restriction.
In sum, patent of the present invention has overcome the limitation of above-mentioned prior art, can effectively solve in the absorption basin safe and stable operation the unfavorable knowledge question of water conservancy that may occur, has great using value for being generalized to other hydroelectric projects simultaneously.
The accompanying drawing explanation
By Figure of description and the specific embodiment that is used from subsequently explanation the present invention some principle with Figure of description one, the further feature that the present invention has and advantage will become clear or more specifically be illustrated.
Fig. 1 is the first layout plan with combined type height bank absorption basin of choosing flow structure of the present invention, and absorption basin flow inlet section two is lateral opening is high bank discharge orifice, high bank discharge orifice and the alternate layout of low bank discharge orifice in absorption basin.
Fig. 2 is the second layout plan with combined type height bank absorption basin of choosing flow structure of the present invention, and absorption basin flow inlet section two is lateral opening is low bank discharge orifice, low bank discharge orifice and the alternate layout of high bank discharge orifice in absorption basin.
The sectional view that Fig. 3 is high bank discharge orifice and with the schematic diagram of absorption basin, absorption basin tail bank and the protection-apron at its same profile place.
The sectional view that Fig. 4 is low bank discharge orifice and with the schematic diagram of absorption basin, absorption basin tail bank and the protection-apron at its same profile place.
Fig. 5 is the sectional drawing along the a-a line that having shown in Fig. 1 chosen the combined type height bank absorption basin of flow structure.
Fig. 6 is the sectional drawing along the b-b line that having shown in Fig. 2 chosen the combined type height bank absorption basin of flow structure.
Should understand, Figure of description might not show concrete structure of the present invention pari passu, and also can take for the n-lustrative feature that some principle of the present invention is described the technique of painting of slightly simplifying in Figure of description.Specific design feature of the present invention disclosed herein for example comprises that concrete size, direction, position and profile will be partly will be applied and the environment of use is determined by concrete.
In several accompanying drawings of Figure of description, identical Reference numeral means the identical or part that is equal to of the present invention.
The critical piece symbol description:
1 high bank discharge orifice
2 low bank discharge orifices
3 absorption basins
4 absorption basin tail banks
5 protection-aprons
6 mid-boards
α
1the flip shot angle of the anti-segmental arc water export of high bank discharge orifice
α
2the flip shot angle of the low anti-segmental arc water export of bank discharge orifice
R
1the anti-segmental arc radius of high bank discharge orifice
R
2the low anti-segmental arc radius of bank discharge orifice
W
1the absorption basin width that the outermost both sides of flow inlet section are high bank discharge orifice
W
2the outermost both sides of flow inlet section are the absorption basin width of low bank discharge orifice
L absorption basin length
B
1single high bank discharge orifice width
B
2single low bank discharge orifice width
D
1high bank discharge orifice water export end is to the height of absorption basin base plate
D
2low bank discharge orifice water export end is to the height of absorption basin base plate
D
3absorption basin tail bank top is to the height of absorption basin base plate.
The specific embodiment
A lot of details have been set forth in the following description so that fully understand the present invention.But the present invention can implement much to be different from alternate manner described here, those skilled in the art can be in the situation that do similar popularization without prejudice to intension of the present invention, so the present invention is not subject to the restriction of following public specific embodiment.
Of the present invention have absorption basin, the tail bank of absorption basin afterbody and a protection-apron joined with absorption basin that anti-arc that the combined type height bank absorption basin of choosing flow structure comprises that high bank discharge orifice and low bank discharge orifice form is chosen flow structure flow inlet section, joined with the flow inlet section.
For solve fall bank near turbulent fluctuation violent, water level fluctuation reaches more greatly the problem that the energy dissipating zone too concentrates on absorption basin first half section, and current inlet segment design is become and chooses flow structure, what make high bank discharge orifice and low bank discharge orifice goes out to flow longitudinal stretching; The flip shot angle of design height bank discharge orifice outlet, stagger the subregion, position, pond that enters that high bank discharge orifice goes out to flow and low bank discharge orifice goes out to flow, and the length that takes full advantage of absorption basin is disperseed energy dissipating.The upstream face of tail bank is designed to WES weir surface curve, controls tail bank height, makes the overcurrent section of height bank discharge orifice be still submerge discharging flow after choosing flow structure, makes absorption basin water outflow levelling suitable, cuts down the flow induced vibration in absorption basin.
Height bank discharge orifice choose the terminal position that flow structure is positioned at runner, conventional runner through horizontal segment excessively after smooth-going linking choose the flow structure section, choose the flow structure section and adopt anti-arc structure.High bank discharge orifice anti-arc radius is less than or equal to low bank discharge orifice anti-arc radius, the flip shot angle of the anti-segmental arc water export of high bank discharge orifice is more than or equal to the flip shot angle of the low anti-segmental arc water export of bank discharge orifice, and all be not more than 25 °, this kind of design can make under high bank discharge orifice to sluice after the main energy dissipating area distribution main energy dissipating zone that sluicing is flowed under low bank discharge orifice of flowing, the length that takes full advantage of absorption basin is carried out energy dissipating, weakens the intensity of concentrating energy dissipating.
In addition, the value of the anti-segmental arc radius of high and low bank earial drainage is between 6～10 times of the maximum water depth at the anti-arc minimum point of discharge orifice place; The upstream face of absorption basin tail bank is designed to WES weir surface curve, and the height of tail bank is greater than high bank discharge orifice outlet end height, and certain degree of flooding and malleation are arranged in the power that disappears, and directly dry pounding in the absorption basin base plate flowed not in lower sluicing; Ensure the safety of flood-discharge energy-dissipating building and improve its application life, guaranteeing practical of the present invention.
Above-mentioned have preferred following structure a: α of combination height bank absorption basin that chooses flow structure
2≤ α
1≤ 25 °; R
1≤ R
2; 6h
1≤ R
1≤ 10h
1; 6h
2≤ R
2≤ 10h
2; 2d
2≤ 1.5d
1≤ d
3.Wherein, α
1for the flip shot angle of the anti-segmental arc water export of high bank discharge orifice, α
2for the flip shot angle of the low anti-segmental arc water export of bank discharge orifice, R
1for the anti-segmental arc radius of high bank discharge orifice, R
2for the low anti-segmental arc radius of bank discharge orifice, h
1for the maximum water depth at the anti-arc minimum point of high bank discharge orifice place, h
2for the maximum water depth at the low anti-arc minimum point of bank discharge orifice place, d
1for the height of high bank discharge orifice outlet end to the absorption basin base plate; d
2for the height of low bank discharge orifice outlet end to the absorption basin base plate, d
3for the height of tail bank top to the absorption basin base plate.
Below in conjunction with accompanying drawing and by embodiment, the invention will be further described.But given embodiment can not be interpreted as limiting the scope of the invention, the nonessential improvement of therefore having done according to content of the present invention and design philosophy and adjust and also should belong to protection scope of the present invention.
Having in embodiment chosen the combined type height bank absorption basin of flow structure for certain large hydropower station multi-purpose project design, and the installation of Hydropower station pivotal engineering is 6400MW, adopts concrete gravity dam, and maximum height of dam is 161m.Hydroelectric station design flood (P=0.2%) flow is 41200m
3/ s, check flood (P=0.02%) flow is 49800m
3/ s, the upstream and downstream maximum stage is poor is 120m, lets out general power under maximum and is about 40000MW.In absorption basin, maximum discharge per unit width is 225m
2/ s, absorption basin enters the pond flow velocity and reaches the 40m/s left and right.
Having in embodiment 1 chosen the structure of combined type height bank absorption basin of flow structure as shown in Fig. 1, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the absorption basin 3, the tail bank 4 of absorption basin and the protection-apron 5 joined with absorption basin that comprise the flow inlet section, join with the flow inlet section, the flow inlet section is by forming along crossing the high bank discharge orifice 1 of combination alternately of water (flow) direction and the mid-board 6 between low bank discharge orifice 2 and high bank discharge orifice 1 and low bank discharge orifice 2.
Fig. 1 shows that the hole count N1 of high bank discharge orifice 1 is 3, the hole count N2 of low bank discharge orifice 2 is 2, in the outermost both sides of flow inlet section, be all on the basis of high bank discharge orifice 1, embodiment 1 and the hole count N1 that Fig. 1 difference is high bank discharge orifice 1 are 6, and the hole count N2 of low bank discharge orifice 2 is 5.
The related structure parameter with combined type height bank absorption basin of choosing flow structure of embodiment 1 is as follows: the width B of high bank discharge orifice 1
1for 6m, the width B of low bank discharge orifice 2
2for 8m, the flip shot angle α of the anti-segmental arc water export of high bank discharge orifice 1
1be 25 °, the anti-segmental arc radius R of high bank discharge orifice 1
1for 48m, the flip shot angle α of the low anti-segmental arc water export of bank discharge orifice 2
2be 25 °, the low anti-segmental arc radius R of bank discharge orifice 2
2for 48m, the width W of absorption basin 3
1for 108m, the length L of absorption basin 3 is 228m, and high bank discharge orifice 1 outlet end is to the height d of absorption basin 3 base plates
1for 16m, low bank discharge orifice 2 outlet ends are to the height d of absorption basin 3 base plates
2for 12m, absorption basin tail bank 4 tops are to the height d of absorption basin 3 base plates
3for 24m.
Having in embodiment 2 chosen the structure of combined type height bank absorption basin of flow structure as shown in Fig. 1, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, and the concrete structure of absorption basin forms in the same manner as in Example 1, and difference is the concrete relevant structural parameters in each position.
The related structure parameter with combined type height bank absorption basin of choosing flow structure of embodiment 2 is as follows: the width B of high bank discharge orifice 1
1for 6m, the width B of low bank discharge orifice 2
2for 8m, the flip shot angle α of the anti-segmental arc water export of high bank discharge orifice 1
1be 20 °, the anti-segmental arc radius R of high bank discharge orifice 1
1for 60m, the flip shot angle α of the low anti-segmental arc water export of bank discharge orifice 2
2be 10 °, the low anti-segmental arc radius R of bank discharge orifice 2
2for 118m, the width W of absorption basin 3
1for 108m, the length L of absorption basin 3 is 228m, and high bank discharge orifice 1 water export end is to the height d of absorption basin 3 base plates
1for 16m, low bank discharge orifice 2 water export ends are to the height d of absorption basin 3 base plates
2for 8m, absorption basin tail bank 4 tops are to the height d of absorption basin 3 base plates
3for 25m.
Having in embodiment 3 chosen the structure of combined type height bank absorption basin of flow structure as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the absorption basin 3, the tail bank 4 of absorption basin afterbody and the protection-apron 5 joined with absorption basin that comprise the flow inlet section, join with the flow inlet section, the flow inlet section is by forming along crossing the high bank discharge orifice 1 of combination alternately of water (flow) direction and the mid-board 6 between low bank discharge orifice 2 and high bank discharge orifice and low bank discharge orifice.
Fig. 2 shows that the hole count N1 of high bank discharge orifice 1 is 2, the hole count N2 of low bank discharge orifice 2 is 3, in the outermost both sides of flow inlet section, be all on the basis of low bank discharge orifice 2, embodiment 3 and the hole count N1 that Fig. 2 difference is high bank discharge orifice 1 are 5, and the hole count N2 of low bank discharge orifice 2 is 6.
The related structure parameter with combined type height bank absorption basin of choosing flow structure of embodiment 3 is as follows: the width B of high bank discharge orifice 1
1for 8m, the width B of low bank discharge orifice 2
2for 8m, the flip shot angle α of the anti-segmental arc water export of high bank discharge orifice
1be 15 °, the anti-segmental arc radius R of high bank discharge orifice 1
1for 80m, the flip shot angle α of the low anti-segmental arc water export of bank discharge orifice 2
2be 15 °, the low anti-segmental arc radius R of bank discharge orifice 1
2for 80m, the width W of absorption basin 3
2for 120m, the length L of absorption basin 3 is 228m, and high bank discharge orifice 1 water export end is to the height d of absorption basin 3 base plates
1for 15m, low bank discharge orifice 2 water export ends are to the height d of absorption basin 3 base plates
2for 9m, absorption basin tail bank 4 tops are to the height d of absorption basin 3 base plates
3for 25m.
Having in embodiment 4 chosen the structure of combined type height bank absorption basin of flow structure as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, and the concrete structure of absorption basin is in the same manner as in Example 3, and difference is the concrete relevant structural parameters in each position.
The related structure parameter with combined type height bank absorption basin of choosing flow structure of embodiment 4 is as follows: the width B of high bank discharge orifice 1
1for 8m, the width B of low bank discharge orifice 2
2for 8m, the flip shot angle α of the anti-segmental arc water export of high bank discharge orifice 1
1be 25 °, the anti-segmental arc radius R of high bank discharge orifice
1for 48m, the flip shot angle α of the low anti-segmental arc water export of bank discharge orifice
2be 15 °, the low anti-segmental arc radius R of bank discharge orifice 2
2for 80m, the width W of absorption basin 3
2for 120m, the length L of absorption basin 3 is 228m, and high bank discharge orifice 1 water export end is to the height d of absorption basin 3 base plates
1for 18m, low bank discharge orifice 2 water export ends are to the height d of absorption basin 3 base plates
2for 10m, absorption basin tail bank 4 tops are to the height d of absorption basin 3 base plates
3for 30m.
Above-described embodiment is for illustrative principle of the present invention and effect thereof, but the present invention is not limited to above-mentioned embodiment.Those skilled in the art all can, under spirit of the present invention and category, in the claim protection domain, modify to above-described embodiment.Therefore protection scope of the present invention, should cover as claims of the present invention.
Claims (6)
1. one kind has the combined type height bank absorption basin of choosing flow structure, and described have absorption basin (3), the tail bank (4) of absorption basin rear end and a protection-apron (5) joined with absorption basin that the combined type height bank absorption basin of choosing flow structure comprises the flow inlet section, joins with the flow inlet section;
Described flow inlet section consists of high bank discharge orifice (1) and the mid-board (6) between low bank discharge orifice (2) and high bank discharge orifice (1) and low bank discharge orifice (2) alternately;
Described flow inlet section is that anti-arc is chosen flow structure, the flip shot angle (α of described high bank discharge orifice (1) water export
1) and the flip shot angle (α of described low bank discharge orifice (2) water export
2) be configured such that the position in subregional interior into absorption basin (3) that go out to flow to that to flow to into the position in absorption basin (3) and low bank discharge orifice (2) of high bank discharge orifice (1) staggers.
2. according to claim 1 have a combined type height bank absorption basin of choosing flow structure, it is characterized in that, the upstream face of described tail bank (4) is WES weir surface curve.
3. according to claim 1 have a combined type height bank absorption basin of choosing flow structure, it is characterized in that the flip shot angle (α of described high bank discharge orifice (1) water export
1) and the flip shot angle (α of described low bank discharge orifice (2) water export
2) meet following relational expression:
α
2≤α
1≤25°。
4. according to claim 1 have a combined type height bank absorption basin of choosing flow structure, it is characterized in that, the surface curve of described high bank discharge orifice (1) and low bank discharge orifice (2) is anti-segmental arc;
The anti-segmental arc radius of described high bank discharge orifice (1) (R
1) and the anti-segmental arc radius (R of low bank discharge orifice (2)
2) meet following relational expression:
R
1≤R
2；
6h
1≤R
1≤10h
1；
6h
2≤R
2≤10h
2；
Wherein, R
1for the anti-segmental arc radius of high bank discharge orifice (1); R
2for the low anti-segmental arc radius of bank discharge orifice (2); h
1maximum water depth for the anti-segmental arc minimum point of high bank discharge orifice (1) place; h
2maximum water depth for the low anti-segmental arc minimum point of bank discharge orifice (2) place.
5. according to claim 1 have a combined type height bank absorption basin of choosing flow structure, it is characterized in that, described have the combined type height bank absorption basin of choosing flow structure and meet following relational expression:
2d
2≤1.5d
1≤d
3；
Wherein, d
1for the height of high bank discharge orifice (1) water export end to absorption basin (3) base plate, d
2for the height of low bank discharge orifice (2) water export end to absorption basin (3) base plate, d
3for the height of tail bank (4) top to absorption basin (3) base plate.
6. according to claim 1 have a combined type height bank absorption basin of choosing flow structure, it is characterized in that, the outermost both sides of described flow inlet section are high bank discharge orifice (1) or low bank discharge orifice (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103606983A CN103437329A (en) | 2013-08-19 | 2013-08-19 | Combination type high-low threshold stilling pool provided with flow deflecting structure |
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|---|---|---|---|
| CN2013103606983A CN103437329A (en) | 2013-08-19 | 2013-08-19 | Combination type high-low threshold stilling pool provided with flow deflecting structure |
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| CN105735209A (en) * | 2016-03-25 | 2016-07-06 | 四川大学 | Differential type swallowtail-shaped flip bucket |
| CN108396713A (en) * | 2018-03-22 | 2018-08-14 | 交通运输部天津水运工程科学研究所 | A kind of energy dissipating construction suitable for diffusion type discharge outlet |
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|---|---|---|---|---|
| CN105735209A (en) * | 2016-03-25 | 2016-07-06 | 四川大学 | Differential type swallowtail-shaped flip bucket |
| CN108396713A (en) * | 2018-03-22 | 2018-08-14 | 交通运输部天津水运工程科学研究所 | A kind of energy dissipating construction suitable for diffusion type discharge outlet |
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Application publication date: 20131211 |