CN112854151B - Rectifying energy dissipation well-falling device - Google Patents
Rectifying energy dissipation well-falling device Download PDFInfo
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- CN112854151B CN112854151B CN202110057245.8A CN202110057245A CN112854151B CN 112854151 B CN112854151 B CN 112854151B CN 202110057245 A CN202110057245 A CN 202110057245A CN 112854151 B CN112854151 B CN 112854151B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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Abstract
The invention relates to a rectification energy dissipation well-falling device, which comprises: the upstream of the drop sill is connected with the upstream incoming water or the branch water catchment; the absorption well is arranged at the downstream of the drop sill along the water flow direction; the energy dissipation beams are arranged in the stilling well at intervals along the direction vertical to the water flow; the tail ridge is arranged at the tail end of the stilling well along the water flow direction; the bending part is arranged at the downstream of the tail sill along the water flow direction; the rectifying section is arranged at the downstream of the bending part along the water flow direction; energy dissipation tooth bank, energy dissipation tooth bank set up the bottom surface at the rectification section along perpendicular to rivers direction interval. The above-mentioned scheme that this application provided, through falling the bank, stilling well, energy dissipation roof beam, tail bank, bend the portion, rectification section and the comprehensive module design of energy dissipation tooth bank, can obviously reduce the engineering volume, simultaneously, through stilling well, energy dissipation roof beam, the combined action of bending and energy dissipation tooth bank, can realize that the water flow mechanical energy disappears.
Description
Technical Field
The invention relates to the technical field of engineering hydraulics flood discharge and energy dissipation, in particular to a rectification energy dissipation well-falling device.
Background
In water conservancy and hydropower engineering and shipping engineering, a large-fall water drop phenomenon or a river reach with a steep slope is frequently encountered, and in order to effectively control the influence of unfavorable water flow state and reduce the erosion effect of water flow on a bottom slope and a side bank of a river channel, the river reach is usually subjected to energy dissipation and speed reduction treatment by engineering means.
One processing idea is as follows: the method has the advantages that the height difference is dispersed, namely, the water flow fall of the river channel is longitudinally dispersed along the river reach, the energy carried by the water flow is gradually eliminated and killed by arranging the multistage drop flow stilling well, and finally the purpose of energy dissipation and speed reduction is achieved.
Another processing idea is as follows: the energy of water flow is concentrated and then treated, the technical means adopted is to arrange a drop and plunge pool combined energy dissipater, the technology releases a great deal of mechanical energy carried by the water flow in a concentrated way through a drop structure, then a drop water tongue forms a hydraulic jump flow state in the plunge pool, so that the water body is turbulent and sheared strongly, and the concentrated consumption of the water flow energy is realized along with the mixing action of a great deal of water and gas. According to the method, under the condition that the drop fall is large, particularly the depth of the water cushion is small, the impact force of falling water flow on the bottom plate of the water cushion pond is large, the pressure gradient near a water inflow area of the water flow is large, the turbulence of the water flow is strong, the stability of the bottom plate of the water cushion pond is easily influenced, and the safety of an energy dissipater structure is threatened. In addition, the water flow noise in the technology is relatively large, and the technology is not suitable for being arranged near residential areas; if the water stabilizing and rectifying device is arranged near the junction of the branch flow and the main flow, the water stabilizing and rectifying device is influenced by water fluctuation of the plunge pool, and is easy to cause large disturbance to the downstream main flow, and a water stabilizing and rectifying measure needs to be additionally arranged.
Disclosure of Invention
Therefore, it is necessary to provide a rectifying energy dissipation well-sinking device for solving the problem of large engineering quantity of the existing river reach energy dissipation and speed reduction processing device.
The invention provides a rectifying energy-dissipating well-falling device, which comprises:
the upstream of the drop sill is connected with the upstream incoming water or the branch water catchment;
the stilling well is arranged at the downstream of the drop sill along the water flow direction;
the energy dissipation beams are arranged in the stilling well at intervals along the direction vertical to the water flow;
the tail ridge is arranged at the tail end of the stilling well along the water flow direction;
the bent part is arranged at the downstream of the tail sill along the water flow direction;
the rectifying section is arranged at the downstream of the bending part along the water flow direction;
the energy dissipation tooth ridges are arranged on the bottom surface of the rectifying section at intervals along the direction perpendicular to the water flow direction;
above-mentioned rectification energy dissipation falls well device through falling the bank, the well that disappears, energy dissipation roof beam, tail bank, the portion of bending, rectification section and the comprehensive module design of energy dissipation tooth bank, can obviously reduce the engineering volume, simultaneously, through the combined action of well that disappears, energy dissipation roof beam, the portion of bending and energy dissipation tooth bank, can realize that rivers mechanical energy disappears and kills.
In one of the embodiments, the upper surface of the energy dissipating beam is located below the top of the drop sill.
In one embodiment, each layer of the energy dissipation beams is distributed with the other layer of the energy dissipation beams in a staggered mode.
In one embodiment, the section of the energy dissipation sill in the direction perpendicular to the water flow is a right trapezoid, the vertical waist of the right trapezoid faces upstream, and the inclined waist of the right trapezoid faces downstream.
In one embodiment, the energy dissipation ridges are arranged at equal intervals in the direction perpendicular to the water flow direction.
In one embodiment, the energy dissipation tooth sill further comprises a rising sill, the rising sill is arranged at the downstream of the energy dissipation tooth sill along the direction perpendicular to the water flow, the inclined surface on the rising sill is arranged towards the upstream, and the included angle between the inclined surface on the rising sill and the water flow direction is an obtuse angle.
In one embodiment, the energy dissipation tooth ridge further comprises a rectifying suspension beam, the rectifying suspension beam is arranged at the downstream of the energy dissipation tooth ridge along the direction perpendicular to the water flow, the cross section of the rectifying suspension beam along the direction perpendicular to the water flow is a parallelogram, and the included angle between the side, facing the upstream, of the rectifying suspension beam and the water flow direction is 45-60 degrees.
In one embodiment, the bottom of the raised ridge is provided with a drain hole.
In one embodiment, the device further comprises a first ventilation pipe, wherein air inlets on the first ventilation pipe are arranged at two ends of the drop sill;
a first air supplement hole is formed in the drop sill along the direction perpendicular to the water flow, one end of the first air supplement hole is communicated with the stilling well along the water flow direction, and the other end of the first air supplement hole is communicated with an air inlet in the first vent pipe.
In one embodiment, the tail sill further comprises a second ventilating pipe, and air inlets on the second ventilating pipe are arranged at two ends of the tail sill;
and a second air supplement hole is formed in the tail ridge along the direction perpendicular to the water flow direction, one end of the second air supplement hole is communicated with the rectifying section along the water flow direction, and the other end of the second air supplement hole is communicated with an air inlet in the second ventilating pipe.
In one embodiment, the bottom of the drop sill and the bottom of the tail sill are provided with drain holes.
Drawings
Fig. 1 is a schematic structural diagram of a rectifying energy-dissipating well-descending device according to an embodiment of the present invention;
fig. 2 is a schematic view of the drop sill and the first snorkel of fig. 1;
fig. 3 is a schematic structural view of the end sill and the second vent pipe in fig. 1;
fig. 4 is a top view of fig. 1.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
As shown in fig. 1, in an embodiment of the present invention, there is provided a rectifying energy-dissipating well-lowering device, including: drop sill 10, energy dissipation roof beam 20, stilling well 30, tail sill 40, the portion of bending 50, rectification section 60 and energy dissipation tooth sill 70, wherein, the upper reaches of falling sill 10 links up the upstream and comes water or tributary catchment, stilling well 30 sets up the low reaches at falling sill 10 along the rivers direction, energy dissipation roof beam 20 sets up in stilling well 30 along perpendicular to rivers direction interval, tail sill 40 sets up the end at stilling well 30 along the rivers direction, the portion of bending 50 sets up the low reaches at tail sill 40 along the rivers direction, rectification section 60 sets up the low reaches at portion of bending 50 along the rivers direction, energy dissipation tooth sill 70 sets up the bottom surface at rectification section 60 along perpendicular to rivers direction interval.
Specifically, the whole width of the device is 5m-8m, when the width of a river reach is large, a scheme of arranging a plurality of devices in parallel can be adopted, and a flow dividing and guiding device is arranged at the upstream; when the slope of the upstream approach channel is steep or the flow rate of the incoming water flow is high, the rising threshold can be additionally arranged on the falling threshold 10 to well control the flow rate and the falling distance of the falling water, so that relatively stable water flow conditions are provided for the whole device.
The stilling well 30 is arranged at the downstream of the drop sill 10 along the water flow direction and is used for receiving the drop flow on the drop sill 10 and killing partial energy of the drop water flow, the tail sill 40 is positioned at the tail end of the stilling well 30, and when the incoming flow is small, the tail sill 40 can assist the stilling well 30 to form a certain water cushion depth so as to be beneficial to killing the water flow energy; when the incoming flow is large, the device can play a certain role in limiting flow and stopping water, is favorable for forming large water depth in the stilling well 30, increases the volume of an energy dissipation water body, even forms pressure flow, and further effectively eliminates and kills mechanical energy carried by water flow; meanwhile, the height from the tail sill 40 to the bottom surface of the stilling well 30 is not more than 1/3 from the bottom surface of the stilling well 30 to the top of the bent part 50; the bent part 50 is arranged at the downstream of the tail sill 40 along the water flow direction, and the structure is used for increasing the resistance of the water flow flowing out of the tail sill 40 and is beneficial to forming a larger water depth in the stilling well 30; the rectifying section 60 is arranged at the downstream of the bending part 50 along the water flow direction and is mainly used for receiving incoming flow, adjusting water flow and killing a small amount of water flow complementary energy, and the energy dissipation tooth ridges 70 are arranged at the bottom surface of the rectifying section 60 at intervals along the direction perpendicular to the water flow direction and are used for stopping up water and killing complementary energy carried by the water flow.
By adopting the technical scheme, through the comprehensive module design of the drop sill, the stilling well, the energy dissipation beam, the tail sill, the bending part, the rectifying section and the energy dissipation tooth sill, the engineering quantity can be obviously reduced, and simultaneously, the stilling well, the energy dissipation beam, the bending part and the energy dissipation tooth sill can realize the stilling and killing of the mechanical energy of the water flow.
In some embodiments, as shown in figure 1, the upper surface of the energy dissipating beam 20 in the present application is below the top of the drop sill 10. Specifically, the upper surface of the energy dissipation beam 20 is located 3-4m below the top of the drop sill 10, the distance between the energy dissipation beam 20 and the drop sill 10 is 5m-7m, the cross section of the energy dissipation beam 20 may be rectangular, circular, etc., but the size is not too large, the size of the cross section of the energy dissipation beam along the direction perpendicular to the water flow (such as the length and width of the rectangle, the diameter of the circle, etc.) is preferably about 1m, and meanwhile, the total width of the cross section of the energy dissipation beam 20 along the direction perpendicular to the water flow is not more than 1/2, usually 1/3, of the water flow area in the stilling well 30.
In some embodiments, in order to enhance the water mixing effect and increase the energy dissipation efficiency, as shown in fig. 1, each layer of energy dissipation beams 20 in the present application is distributed with a staggered arrangement with another layer of energy dissipation beams 20.
In some embodiments, as shown in fig. 1, the energy dissipation sill 70 in the present application has a right trapezoid cross section perpendicular to the water flow direction, the vertical waist of the right trapezoid faces upstream, so as to enhance the mixing effect of the incoming flow at this point, the inclined waist of the right trapezoid faces downstream, on one hand, the right trapezoid has a good stabilizing effect on the energy dissipation sill, on the other hand, the risk of cavitation erosion of the structure can be effectively reduced, and at the same time, the longest side of the upper bottom and the lower bottom of the right trapezoid is tightly attached to the bottom surface of the fairing section 60.
In some embodiments, the energy dissipating thresholds 70 in the present application are equally spaced perpendicular to the direction of water flow. Specifically, the width of each energy dissipation sill 70 is preferably set to be equal to the height, and the distance between two adjacent energy dissipation sills 70 is preferably equal to the width of a single sill.
In some embodiments, when the outlet at the downstream of the energy dissipation tooth sill 70 is a channel and a small surface flow rate is required, as shown in fig. 1, the rectifying energy dissipation drop well device in the present application further includes a rectifying suspension beam 80, where the rectifying suspension beam 80 is used to reduce the surface flow rate of water and adjust the cross-sectional flow rate distribution of the flow junction, the rectifying suspension beam 80 is disposed at the downstream of the energy dissipation tooth sill 70 along the length perpendicular to the water flow direction, and meanwhile, the cross-section of the rectifying suspension beam 80 perpendicular to the water flow direction is a parallelogram, and the included angle between the side of the rectifying suspension beam 80 facing the upstream and the water flow direction is 45 ° to 60 °, since the rectifying suspension beam 80 is disposed at the downstream of the energy dissipation tooth sill 70 along the length perpendicular to the water flow direction, the flow rate of the water flow surface at the downstream of the energy dissipation tooth sill 70 can be reduced.
In some embodiments, when the outlet downstream of the energy dissipation sill 70 is engaged with a river channel with a weak river bed, as shown in fig. 1, the rectifying energy dissipation drop well device in the present application further includes a raised sill 90, and the raised sill 90 is disposed downstream of the energy dissipation sill 70 along a direction perpendicular to the water flow. Because the rising ridge 90 is arranged at the downstream of the energy dissipation ridge 70 along the direction perpendicular to the water flow, the bottom-facing flow velocity of the outflow can be reduced, and the erosion to the bottom surface of the river channel of the soft river bed is reduced.
In some embodiments, to facilitate servicing the entire device, the present application provides a drain hole in the bottom of the elevator sill 90.
In some embodiments, as shown in fig. 2, the rectified energy dissipation drop well device in the present application further includes a first ventilation pipe 101, and air inlets on the first ventilation pipe 101 are provided at both ends of the drop sill 10; a first air supply hole 102 is formed in the drop sill 10 along the direction perpendicular to the water flow, one end of the first air supply hole 102 is communicated with the stilling well 30 along the water flow direction, and the other end of the first air supply hole 102 is communicated with an air inlet on the first vent pipe 101.
The arrangement of the first vent pipe 101 facilitates air supply to the space below the drop spout formed from upstream to downstream on the drop sill 10, and ensures that a stable drop spout can be formed on the drop sill 10.
In some embodiments, as shown in fig. 3, the rectifying energy-dissipating well-dropping device in the present application further includes a second vent pipe 401, and air inlets on the second vent pipe 401 are disposed at two ends of the tail sill 40; a second air supply hole 402 is formed in the tail sill 40 along the direction perpendicular to the water flow direction, one end of the second air supply hole 402 is communicated with the rectifying section 60 along the water flow direction, and the other end of the second air supply hole 402 is communicated with an air inlet on the second vent pipe 401.
The second vent pipe 401 is arranged to conveniently supply air to the space below the drop spout formed from the upstream to the downstream on the tail sill 40, and ensure that a stable drop spout can be formed on the tail sill 40.
In some embodiments, to facilitate servicing of the integrated device, drain holes are provided in the present application at the bottom of both the drop sill 10 and the tail sill 40.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. A rectifying energy dissipating well drop device, comprising:
the device comprises a drop sill (10), wherein the upstream of the drop sill (10) is connected with upstream incoming water or branch water catchment;
the stilling well (30), the stilling well (30) is arranged at the downstream of the drop sill (10) along the water flow direction;
the energy dissipation beams (20) are arranged in the stilling well (30) at intervals along the direction perpendicular to the water flow direction;
the tail threshold (40) is arranged at the tail end of the stilling well (30) along the water flow direction;
the bent part (50) is arranged at the downstream of the tail sill (40) along the water flow direction;
the rectifying section (60) is arranged at the downstream of the bending part (50) along the water flow direction;
and the energy dissipation tooth ridges (70) are arranged on the bottom surface of the rectifying section (60) at intervals along the direction perpendicular to the water flow.
2. A rectifying energy dissipating drop well device according to claim 1, characterized in that the upper surface of the energy dissipating beam (20) is located below the top of the drop sill (10).
3. A rectifying energy dissipating drop well device according to claim 2, characterized in that each layer of energy dissipating beams (20) is distributed offset from another layer of energy dissipating beams (20).
4. A rectifying energy dissipating drop well device according to claim 1, characterized in that the energy dissipating tooth sills (70) are arranged at equal intervals in the direction perpendicular to the water flow, the section of the energy dissipating tooth sill (70) in the direction perpendicular to the water flow is a right trapezoid, the vertical waist of the right trapezoid faces upstream, and the inclined waist of the right trapezoid faces downstream.
5. A rectifying energy dissipating drop well device according to claim 1, further comprising a first aeration pipe (101), wherein air inlets on the first aeration pipe (101) are provided at both ends of the drop sill (10);
a first air supplement hole (102) is formed in the drop sill (10) along the direction perpendicular to the water flow, one end of the first air supplement hole (102) is communicated with the stilling well (30) along the water flow direction, and the other end of the first air supplement hole (102) is communicated with an air inlet in the first vent pipe (101).
6. A rectifying energy dissipating drop well device according to claim 1, characterized by further comprising a second vent pipe (401), wherein air inlets on the second vent pipe (401) are arranged at two ends of the tail sill (40);
and a second air supplement hole (402) is formed in the tail sill (40) along the direction perpendicular to the water flow direction, one end of the second air supplement hole (402) is communicated with the rectifying section (60) along the water flow direction, and the other end of the second air supplement hole (402) is communicated with an air inlet in the second vent pipe (401).
7. A rectifying energy dissipating drop well device according to claim 1, characterized in that the bottom of both the drop sill (10) and the tail sill (40) are provided with drainage holes.
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| CN202110057245.8A CN112854151B (en) | 2021-01-15 | 2021-01-15 | Rectifying energy dissipation well-falling device |
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| CN202110057245.8A CN112854151B (en) | 2021-01-15 | 2021-01-15 | Rectifying energy dissipation well-falling device |
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| CN112854151B true CN112854151B (en) | 2022-06-03 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203514273U (en) * | 2013-07-22 | 2014-04-02 | 中国水电顾问集团华东勘测设计研究院 | Large-incidence-angle diffusion-type drop sill underflow energy dissipation structure |
| CN108316256A (en) * | 2018-03-27 | 2018-07-24 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of folded plate type end sill stilling pond |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2138661B (en) * | 1983-04-29 | 1986-04-09 | Maeta Concrete Works Ltd | Irrigation and drainage |
| CN103966985B (en) * | 2014-05-12 | 2016-04-13 | 四川大学 | A kind of side direction goes out to flow the absorption basin of rotary roll energy dissipating |
| CN209066396U (en) * | 2018-10-26 | 2019-07-05 | 杨凌职业技术学院 | One kind is drained off floodwaters structure for flood discharging tunnel energy dissipating corrosion inhibitor |
| CN109555088B (en) * | 2019-01-14 | 2023-11-07 | 中国水利水电科学研究院 | Rectifying vortex-preventing device |
| CN112049067A (en) * | 2020-08-21 | 2020-12-08 | 中国电建集团西北勘测设计研究院有限公司 | Novel water flow opposite-flushing type drop building |
| CN112127325B (en) * | 2020-08-25 | 2021-12-17 | 中国水利水电科学研究院 | Converging port rectifying device |
| CN214301639U (en) * | 2021-01-15 | 2021-09-28 | 安徽省引江济淮集团有限公司 | Rectifying energy dissipation well falling device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203514273U (en) * | 2013-07-22 | 2014-04-02 | 中国水电顾问集团华东勘测设计研究院 | Large-incidence-angle diffusion-type drop sill underflow energy dissipation structure |
| CN108316256A (en) * | 2018-03-27 | 2018-07-24 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of folded plate type end sill stilling pond |
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