CN112127325A - Converging port rectifying device - Google Patents
Converging port rectifying device Download PDFInfo
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- CN112127325A CN112127325A CN202010863582.1A CN202010863582A CN112127325A CN 112127325 A CN112127325 A CN 112127325A CN 202010863582 A CN202010863582 A CN 202010863582A CN 112127325 A CN112127325 A CN 112127325A
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- channel
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- water flow
- rectifying
- branch channel
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/04—Navigable canals
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/04—Navigable canals
- E02B5/06—Operating equipment in connection with canals
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/16—Fixed weirs; Superstructures or flash-boards therefor
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Sewage (AREA)
Abstract
The invention relates to a bus port rectifying device, comprising: the overflow dam falls the bank, and the absorption basin, the rectification campshed, a plurality of water conservancy diversion screens set up along the width direction interval of lateral canal, and the water conservancy diversion screen sets up the low reaches at the rectification campshed along the interior rivers direction of lateral canal. According to the scheme provided by the application, the water flow in the branch channel sequentially passes through the overflow dam, the falling sill, the stilling basin and the rectifying row pile, the influence of the adverse flow phenomenon in the branch channel confluence can be eliminated, the energy of the incoming flow of the branch channel is effectively killed, the uniform distribution of the water flow in the cross section before entering the main channel is well realized, then the water flow is uniformly mixed with the water flow of the main channel from the edge of the channel gradually under the action of the flow guide screen, the adverse influence of the branch channel confluence on the transverse flow rate in the main channel is effectively reduced, the backflow and main flow swing phenomenon caused by the confluence are basically eliminated, and therefore the stability of the water flow field near the confluence opening is ensured.
Description
Technical Field
The invention relates to the technical field of navigation channel planning and improvement engineering, in particular to a rectifying device for a confluence port.
Background
The branch channel confluence is a common phenomenon in channel engineering, the confluence of the branch channel flow can effectively supplement the flow in a main channel of a channel, and is beneficial to maintaining the water level and navigation conditions in the channel, but the flow field structure near a confluence port is changed to a certain extent, so that the channel safety is easily influenced. Particularly, when the confluence amount is large or the intersection angle is large, the transverse flow velocity of a local water area of the channel near the confluence opening is easily and remarkably increased, poor flow states such as confluence and water flow swing in the channel are caused, adverse effects are caused on the safety of the channel, and even safety accidents are caused in severe cases.
At present, the conventional method is to widen the junction, so that the branch channel junction flows into the main channel in a larger range, that is, according to the branch channel design flow and the requirement of the main channel on the transverse flow rate, the water depth and width required by the junction are calculated, or the kinetic energy of the branch channel water flow is eliminated by using water drop or well drop and an auxiliary energy dissipation beam, so as to reduce the adverse effect of the branch channel inflow on the main channel flow field.
However, the above-mentioned techniques are generally only suitable for diversion and rectification of the junction where the branch channel flow rate is small or significantly smaller than the main channel flow rate, i.e., when the branch channel flow rate is small, the branch channel flow rate merging does not significantly affect the flow field in the main channel. However, when the confluence is large, namely the flow of the branch channel is large, the prior art cannot well ensure the stability of the water area flow field near the confluence opening; meanwhile, when the flow of the branch channel is large, the prior art generally needs a large floor area and excavation amount, so that the engineering investment is large, the limitation of land acquisition red lines is easy, the difference of inflow conditions of different branch channels is large, and structural influences such as curves and steep slopes can be caused before the branch channels are converged into the main channel, so that the water flow converged into the branch channels is easy to generate water flow phenomena such as local concentration, rotational flow and backflow of the water flow near a confluence port, and the adverse influence is easy to be caused on the transverse flow rate of the channel.
Disclosure of Invention
Therefore, it is necessary to provide a flow-gathering port rectifying device for solving the problem that the flow field of a water area near a flow-gathering port cannot be ensured to be stable when the flow of the existing branch channel is gathered into the main channel.
The invention provides a bus port rectifying device, comprising:
the overflow dam is arranged in the branch channel along the width direction of the branch channel;
the drop sill is arranged at the downstream of the overflow dam along the water flow direction in the branch channel;
the stilling pool is arranged at the downstream of the drop sill along the water flow direction in the branch channel;
the rectifying row piles are arranged at the downstream of the stilling pool along the water flow direction in the branch channel;
and the diversion screens are arranged at intervals in the width direction of the branch channel, and are arranged in the downstream of the rectifying row piles along the water flow direction in the branch channel.
According to the rectifying device for the junction, after water flow in the branch channel sequentially passes through the overflow dam, the drop sill, the stilling basin and the rectifying row piles, energy of incoming flow of the branch channel can be effectively killed, the influence of adverse flow phenomena in junction of the branch channel is eliminated, uniform distribution of the water flow in a cross section before entering the main channel is well realized, then the water flow is uniformly mixed with water flow of the main channel from the edge of the channel gradually under the action of the flow guide screen, the adverse influence of junction of the branch channel on the transverse flow velocity in the main channel is effectively reduced, and therefore the stability of a water area flow field near the junction is guaranteed.
In one embodiment, the downstream arc surface of the overflow dam is connected with the vertical surface of the drop sill through a plane, or directly connected.
In one embodiment, the device further comprises a vent pipe, wherein air inlets on the vent pipe are arranged at two ends of the drop sill;
fall the bank in along the lateral channel width direction is provided with the benefit gas pocket, the one end in benefit gas pocket is followed the water flow direction in the lateral channel with stilling pool intercommunication, the other end in benefit gas pocket with air inlet intercommunication on the breather pipe.
In one embodiment, the energy dissipater further comprises an auxiliary energy dissipater, and the auxiliary energy dissipater is arranged in the stilling pool.
In one embodiment, the auxiliary energy dissipater comprises a T-shaped pier and a tail sill, a front pier on the T-shaped pier faces the drop sill, and one end, far away from the front pier, of the T-shaped pier is tightly attached to the tail sill.
In one embodiment, the distance between the front pier on the T-shaped pier and the drop sill in the water flow direction in the branch channel is
Wherein the content of the first and second substances,
q is single wide flow, g is gravity acceleration, hdIs the height of the falling sill, /)xThe distance between the drop sill and the front pier along the water flow direction in the branch channel,
taking 1.5-2.0.
In one embodiment, a plurality of the rectifying piles in the rectifying row pile are evenly distributed along the width of the branch canal at intervals.
In one embodiment, the rectifying piles in one row of the rectifying piles and the rectifying piles in the other row of the rectifying piles are distributed in a staggered mode along the water flow direction in the branch channel.
In one embodiment, the distance between the tail ends of the flow guide screens and the waterway sideline on the main channel is gradually increased along the water flow direction of the main channel.
In one embodiment, the part of the flow guide screen, which is positioned under water, is provided with a hole.
Drawings
Fig. 1 is a schematic structural diagram of a bus bar port rectifying device according to an embodiment of the present invention;
FIG. 2 is a partial schematic view of FIG. 1;
FIG. 3 is a side view of FIG. 2;
fig. 4 is a schematic view of the drop sill and snorkel of fig. 1;
fig. 5 is a schematic view of the distance between the diversion screen of fig. 1 and the edge line of the channel on the main channel.
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, a bus port rectifying apparatus includes: the overflow dam 201, the drop sill 202, the stilling basin 204, the rectifying row pile 206 and the plurality of flow guide screens 207 are arranged in the branch channel 20, wherein the overflow dam 201 is arranged in the branch channel 20 along the width direction of the branch channel 20, the drop sill 202 is arranged at the downstream of the overflow dam 201 along the water flow direction in the branch channel 20, the drop sill 202 is also arranged in the branch channel 20 along the width direction of the branch channel 20, the stilling basin 204 is arranged at the downstream of the drop sill 202 along the water flow direction in the branch channel 20, the stilling basin 204 is simultaneously arranged in the branch channel 20 along the width direction of the branch channel 20, the rectifying row pile 206 is arranged at the downstream of the stilling basin 204 along the water flow direction in the branch channel 20, the plurality of flow guide screens 207 are arranged at intervals along the width direction of the branch channel 20, and the flow guide screens 207 are arranged at the downstream of the rectifying row pile 206 along the water flow direction in the branch channel 20.
In the flow convergence port rectifying device, the upstream of the overflow dam 201 is connected with the branch channel 20, and the water flow in the branch channel 20 can form water choking overflow at the overflow dam 201, so that on one hand, the impact of the water flow in different directions of the branch channel 20 at the upstream of the overflow dam 201 on the downstream can be weakened, and on the other hand, the water flow realizes transverse flow equalization at the overflow dam 201, thereby being beneficial to the design of the drop sill 202 and the stilling basin 204 connected at the downstream and uniformly distributing the water flow in the stilling basin transversely; when water flow in the branch channel sequentially passes through the overflow dam, the drop sill, the stilling basin and the rectifying row piles, the influence of an adverse flow phenomenon in the branch channel confluence can be eliminated, the energy of the incoming flow of the branch channel is effectively eliminated, the uniform distribution of the water flow in the cross section before entering the main channel is well realized, then the water flow is uniformly mixed with the water flow of the main channel from the edge of the channel gradually under the action of the diversion screen, the adverse influence of the confluence of the branch channel on the transverse flow velocity in the main channel is effectively reduced, and the stability of a water flow field near the confluence opening is ensured.
In some embodiments, as shown in fig. 1, 2 or 3, the downstream curved surface of the overflow dam 201 in the present application is connected to the vertical surface of the drop sill 202 through a plane, or when in the branch channel 20 with limited space, the downstream curved surface of the overflow dam 201 is directly connected to the vertical surface of the drop sill 202.
Further, in order to avoid the influence on the flood discharge capacity of the branch channel 20 when the height of the overflow dam 201 is too high, the top height of the overflow dam 201 in the present application is designed to be 0.5m to 1.0m higher than the highest navigable water level.
In some embodiments, as shown in fig. 3 in conjunction with fig. 4, the present application further comprises a breather pipe 203, the breather pipe 203 being disposed at both ends of the drop sill 202; meanwhile, an air supply hole 2021 is formed in the drop sill 202 along the width direction of the branch channel 20, one end of the air supply hole 2021 is communicated with the stilling basin 204 along the water flow direction in the branch channel 20, and the other end of the air supply hole 2021 is communicated with the vent pipe 203. The arrangement of the vent pipe 203 facilitates the air supply to the space below the drop spout formed from upstream to downstream on the drop sill 202, and ensures that a stable drop spout can be formed on the drop sill 202.
In some embodiments, as shown in fig. 1 or fig. 3, the present application further includes an auxiliary energy dissipater 205, the auxiliary energy dissipater 205 is disposed in the stilling basin 204, and the combined arrangement of the stilling basin 204 and the auxiliary energy dissipater 205 can achieve the cancellation of the energy of the water flow in the lateral channel 20 on one hand and further achieve the homogenization of the transverse water flow on the other hand;
specifically, as shown in fig. 2, the auxiliary energy dissipater 205 comprises a T-shaped pier 2051 and a sill 2052, wherein a front pier 20511 on the T-shaped pier 2051 faces the drop sill 202, and one end of the T-shaped pier 2051 far away from the front pier 20511 is tightly attached to the sill 2052.
Further, as shown in fig. 2, the distance between the front pier 20511 of the T-shaped pier 2051 and the drop sill 202 along the water flow direction in the branch channel 20 is
Wherein the content of the first and second substances,
q is single wide flow, g is gravity acceleration, hdIs the height of the drop sill 202,/xThe distance between the drop sill 202 and the front pier 20511 in the direction of water flow in the spur channel 20,
taking 1.5-2.0.
It should be noted that the structure of the auxiliary energy dissipater and the distance between the front pier and the drop sill on the T-shaped pier along the water flow direction in the branch channel in the embodiment of the present application are only examples, and in other alternative schemes, other structures or distances may be adopted, for example, the auxiliary energy dissipater includes a square flow guiding block, and the front pier and the drop sill on the T-shaped pier along the branch channelThe distance between the inner water flow directions is 1.5hd. The application does not do special restriction to the concrete structure of supplementary energy dissipater and preceding mound on the T type mound and fall the bank along the interval between the rivers direction in the subchannel, as long as above-mentioned structure can realize the purpose alright of this application.
In some embodiments, as shown in fig. 2, a plurality of the fairing piles 2061 in the fairing row 206 of the present application are evenly spaced along the width of the branch trench 20.
Further, the present application includes a plurality of rows of rectifying piles 206, wherein the rectifying piles 2061 in one row of rectifying piles 206 are staggered from the rectifying piles 2061 in another row of rectifying piles 206 along the direction of water flow in the branch canal 20. Therefore, the water flow in the branch channel 20 can be equalized in both directions in the transverse direction and the depth direction by the flow-around of the rectifying piles, and generally, the rectifying piles 206 may include 3 to 4 rows, which are too few to have a good flow-equalizing effect and too many with poor economy.
Still further, the diameter of the rectifying piles 2061 in the rectifying piles 206 is 0.5-1.0m, or the length of each rectifying pile 2061 is 0.5-1.0m, the distance between the rectifying piles 2061 should be enough to maintain the overflow section and the floating removal capability, and the height of the rectifying piles 2061 is not less than the maximum planned shipping water depth.
In some embodiments, as shown in fig. 5, the plurality of deflectors 207 in the present application are spaced progressively farther from the course edge 101 on the main channel 10 in the direction of flow of the main channel 10. For example, the present application includes six flow guide screens 207, wherein, in the water flow direction of the main channel 10, the distances between the ends of the flow guide screens 207 and the channel sideline 101 are sequentially 0m, 2m, 4m, 6m, 8m, and 10m, and it should be noted that the number of the flow guide screens 207 and the distance between the ends of the flow guide screens 207 and the channel sideline 101 are merely examples, and the design may be specifically performed according to the actual product requirements. The arrangement of the plurality of flow guide screens 207 can effectively reduce the influence of successive confluence on the water flow speed of the main channel 10, wherein the contraction distance of each stage is not too large, and the width of the visible confluence port is 1.0m-2.0 m.
Specifically, one end of the flow guiding screen 207 facing the rectifying row piles 206 is parallel to the water flow direction of the branch channel 20, and plays a role in dividing the flow; the end of the deflector 207 remote from the rectifying piles 206 is arranged in a broken line or arc line, and the included angle between the tangential direction of the tail end of the deflector 207 remote from the rectifying piles 206 and the water flow direction in the main channel 10 is preferably 3-5 degrees.
Further, when the water flow velocity in the branch channel 20 is low, the included angle between the tangential direction of the outlet of the flow guide screen 207 and the water flow direction in the main channel 10 can be a recommended large value; when the water flow velocity in the branch channel 20 is high, the included angle between the tangential direction of the outlet of the flow guide screen 207 and the water flow direction in the main channel 10 can be recommended to be small.
Further, the heights of the plurality of flow guiding screens 207 may be different, the flow guiding screen 207 serves to divide the flow towards one end of the rectifying row pile 206, and the heights may be set with reference to the planned lowest navigable water level height; the height of the diversion screen 207 away from the end of the rectifying row pile 206 plays a role in diversion, and therefore, all the planned water depth range of the navigation channel should be covered.
In some embodiments, the underwater portion of the baffle 207 is provided with holes. When the depth of the branch channel and the main channel near the confluence port is larger, the part of the diversion screen 207 under water is provided with holes, so that the flow of the part under water can be effectively increased, and the influence of the flow of the branch channel on the surface flow field near the confluence port is reduced; and meanwhile, the water pressure difference of the two sides of the flow guide screen is balanced, and the stress state of the flow guide screen is improved.
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 (10)
1. A bus port rectifying device, comprising:
an overflow dam (201), the overflow dam (201) being disposed within a lateral channel (20) in a width direction of the lateral channel (20);
a drop sill (202), the drop sill (202) being disposed downstream of the overflow dam (201) in the direction of water flow within the lateral (20);
the stilling pool (204), the stilling pool (204) is arranged at the downstream of the drop sill (202) along the water flow direction in the branch channel (20);
the rectifying row piles (206), wherein the rectifying row piles (206) are arranged at the downstream of the stilling pool (204) along the water flow direction in the branch channel (20);
a plurality of flow guide screens (207), it is a plurality of flow guide screen (207) are followed the width direction interval setting of lateral canal (20), just flow guide screen (207) are followed current direction sets up in lateral canal (20) the low reaches of rectification campshed (206).
2. The junction fairing according to claim 1, characterized in that the downstream curved surface of the overflow dam (201) is connected to the vertical surface of the drop sill (202) by a flat surface, or directly.
3. The junction fairing according to claim 1, further comprising a vent pipe (203), wherein an air inlet on said vent pipe (203) is provided at both ends of said drop sill (202);
an air supplementing hole (2021) is formed in the drop sill (202) along the width direction of the branch channel (20), one end of the air supplementing hole (2021) is communicated with the stilling pool (204) along the water flow direction in the branch channel (20), and the other end of the air supplementing hole (2021) is communicated with an air inlet in the vent pipe (203).
4. The bus bar fairing as recited in claim 1, further comprising an auxiliary energy dissipater (205), said auxiliary energy dissipater (205) being disposed within said stilling basin (204).
5. The bus bar fairing as recited in claim 4, wherein said auxiliary energy dissipater (205) comprises a T-shaped pier (2051) and a tail (2052), a front pier (20511) on said T-shaped pier (2051) faces said drop sill (202), and an end of said T-shaped pier (2051) remote from said front pier (20511) abuts said tail (2052).
6. The junction fairing as recited in claim 5, characterized in that a distance between a front pier (20511) on said T-shaped pier (2051) and said drop sill (202) in a direction of water flow in said raceway (20) is
Wherein the content of the first and second substances,
q is single wide flow, g is gravity acceleration, hdIs the height of the drop sill (202)/xIs the distance between the drop sill (202) and the front pier (20511) along the water flow direction in the branch canal (20),
taking 1.5-2.0.
7. The bus bar fairing as recited in claim 1, wherein a plurality of said fairing stakes (2061) in said fairing row (206) are evenly spaced along a width of the branch duct (20).
8. The bus bar port rectifying device according to claim 7, wherein the rectifying piles (2061) in one row of the rectifying piles (206) are distributed in a staggered manner with the rectifying piles (2061) in the other row of the rectifying piles (206) along the water flow direction in the branch channel (20).
9. The flow straightener of claim 1, wherein the plurality of baffles (207) are spaced at increasing intervals from the course edge (101) of the main channel (10) at the ends thereof in the direction of the flow of the main channel (10).
10. The bus duct fairing as recited in claim 9, wherein an underwater portion of said baffle (207) is provided with a hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010863582.1A CN112127325B (en) | 2020-08-25 | 2020-08-25 | Converging port rectifying device |
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| CN202010863582.1A CN112127325B (en) | 2020-08-25 | 2020-08-25 | Converging port rectifying device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112800695A (en) * | 2021-01-15 | 2021-05-14 | 安徽省引江济淮集团有限公司 | Water flow condition classification method for confluence port |
| CN112854151A (en) * | 2021-01-15 | 2021-05-28 | 安徽省引江济淮集团有限公司 | Rectifying energy dissipation well falling device |
| CN116163262A (en) * | 2023-02-18 | 2023-05-26 | 四川大学 | Method for improving water flow conditions of branched river channel through ecological water supplementing port combined with overflow dam |
| CN117829035A (en) * | 2024-03-05 | 2024-04-05 | 南昌工程学院 | Prediction method for flow of downstream branch channels of T-shaped branched open channels |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204644955U (en) * | 2015-04-23 | 2015-09-16 | 珠江水利委员会珠江水利科学研究院 | A kind of water conservancy diversion, energy-dissipating structure being applicable to tidal waterway water drainage hinge |
| CN206591500U (en) * | 2017-03-08 | 2017-10-27 | 浙江省水利河口研究院 | A kind of laterally-graded rectifier type stiling basin for river course of turning |
| CN109555088A (en) * | 2019-01-14 | 2019-04-02 | 中国水利水电科学研究院 | A kind of anti-whirlpool device of rectification |
| CN209066395U (en) * | 2018-10-26 | 2019-07-05 | 马峰 | A kind of stilling pond for the water sealing structure that consumes energy certainly with combined type |
-
2020
- 2020-08-25 CN CN202010863582.1A patent/CN112127325B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204644955U (en) * | 2015-04-23 | 2015-09-16 | 珠江水利委员会珠江水利科学研究院 | A kind of water conservancy diversion, energy-dissipating structure being applicable to tidal waterway water drainage hinge |
| CN206591500U (en) * | 2017-03-08 | 2017-10-27 | 浙江省水利河口研究院 | A kind of laterally-graded rectifier type stiling basin for river course of turning |
| CN209066395U (en) * | 2018-10-26 | 2019-07-05 | 马峰 | A kind of stilling pond for the water sealing structure that consumes energy certainly with combined type |
| CN109555088A (en) * | 2019-01-14 | 2019-04-02 | 中国水利水电科学研究院 | A kind of anti-whirlpool device of rectification |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112800695A (en) * | 2021-01-15 | 2021-05-14 | 安徽省引江济淮集团有限公司 | Water flow condition classification method for confluence port |
| CN112854151A (en) * | 2021-01-15 | 2021-05-28 | 安徽省引江济淮集团有限公司 | Rectifying energy dissipation well falling device |
| CN112800695B (en) * | 2021-01-15 | 2023-10-20 | 安徽省引江济淮集团有限公司 | Method for classifying conditions of water flow at flow converging port |
| CN116163262A (en) * | 2023-02-18 | 2023-05-26 | 四川大学 | Method for improving water flow conditions of branched river channel through ecological water supplementing port combined with overflow dam |
| CN116163262B (en) * | 2023-02-18 | 2024-06-11 | 四川大学 | Method for improving bifurcate river water flow conditions through ecological water supplementing port combined with overflow dam |
| CN117829035A (en) * | 2024-03-05 | 2024-04-05 | 南昌工程学院 | Prediction method for flow of downstream branch channels of T-shaped branched open channels |
| CN117829035B (en) * | 2024-03-05 | 2024-05-14 | 南昌工程学院 | Prediction method for flow of downstream branch channel of T-shaped bifurcate open channel |
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| CN112127325B (en) | 2021-12-17 |
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