CN214656855U - A turn section structure for standing seam formula fishway - Google Patents
A turn section structure for standing seam formula fishway Download PDFInfo
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- CN214656855U CN214656855U CN202120002467.5U CN202120002467U CN214656855U CN 214656855 U CN214656855 U CN 214656855U CN 202120002467 U CN202120002467 U CN 202120002467U CN 214656855 U CN214656855 U CN 214656855U
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- baffle
- side wall
- section
- fishway
- pond room
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Abstract
The utility model provides a turn section structure for vertical seam formula fishway, includes outside wall and interior boundary wall, and interior boundary wall separates the pond room of going up and down, on the lower part of outside wall and interior boundary wall was fixed in the bottom plate of pond room, the pond room of outside wall inboard was equipped with the baffle, on the lower part PMKD of baffle, the baffle includes that horizontal baffle and symmetry set up a plurality of oblique baffles at horizontal baffle both ends, the tip at horizontal baffle both ends all with oblique baffle fixed connection, the baffle separates the pond room for mainstream pond room and rest pond room, the turn back point of interior boundary wall is equipped with the breakwater parallel with interior boundary wall, turn section import department and turn section exit all be equipped with install at left bank or right bank the baffle and install at right bank or left bank and baffle staggered relatively. The baffle divides the pool chamber into a main stream pool chamber and a rest pool chamber, and the fishes can continue to trace after having a rest in the rest pool chamber.
Description
Technical Field
The utility model relates to a fishway technical field, concretely relates to turn section structure for perps formula fishway.
Background
The vertical seam type fishway is a pool type fishway and has the technical advantages of stable water flow state, strong adaptability to water level change, high fish passing efficiency and the like. However, due to the restrictions of topographic and geological conditions and the gradient of dam bodies, the fishway engineering is often set to turn 180 degrees to avoid unfavorable arrangement conditions.
In the prior art, the invention patent with the application number of CN201610162694.8 discloses a roundabout fishway rotary ascending section rest pool, which comprises an outer side wall, an inner side wall, an upstream pool chamber outlet partition pier positioned at an inlet of the rest pool and a downstream pool chamber inlet partition pier positioned at an outlet of the rest pool, wherein a pier head guide plate is arranged on the upstream pool chamber outlet partition pier; the inner side surface of the turning section of the outer side wall is provided with a deflection pier, the pier head of the deflection pier is provided with a guide plate, and the deflection pier is level with the corner of the inner side wall at the upstream; the pier head guide plate deflects towards the direction of the outer side wall by 15-20 degrees. The outside wall turning part of the rest pool of the fish way whirling ascending section is vertically provided with the baffling pier, and the pier head guide plate deflects towards the outside wall, so that the water flow entering the turning area from the upstream pool chamber is blocked, and the main flow diffusion deceleration concentrated near the outside wall surface can be realized, the backflow near the inside wall surface is reduced, the flow state in the rest pool of the fish way whirling ascending section is regular, the flow speed is reduced, and the rest and the upward tracking of fishes are facilitated.
However, the device is only provided with the partition piers which play the role of rectifying and energy dissipating on the side wall of the turning section, the partition piers do not separate the main flow channel from the rest pool, the rest pool is usually directly arranged in the main flow channel or the main flow channel has the function of a rest area, the structure of the device arranged in such a way is unreasonable, fishes cannot be fully rested in the process of going back, water flow enters the turning section through the vertical seams, a backflow area in a large range still exists, and the flow field of the whole turning section is disordered.
Disclosure of Invention
An object of the utility model is to provide a turn section structure for vertical joint formula fishway to there is the rest pond among the solution prior art and directly sets up in the mainstream channel usually, is difficult to make fish obtain abundant rest tracing to the trip in-process, and still has the technical problem in great scope backward flow district.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a turn section structure for perps formula fishway, the lower part of outside wall and interior wall is fixed in on the bottom plate of pool room, be equipped with the baffle in the pool room of outside wall inboard, on the lower part PMKD of baffle, the baffle includes that horizontal baffle and symmetry set up a plurality of oblique baffles at horizontal baffle both ends, the tip at horizontal baffle both ends all with oblique baffle fixed connection, the baffle separates the pool room for mainstream pool room and rest pool room, the department of turning back of interior wall is equipped with the breakwater parallel with interior wall, turn section import department and turn section exit all are equipped with the baffle of installing at left bank or right bank and install at right bank or left bank and the baffle staggered baffle relatively, form the perps between baffle and the baffle.
Furthermore, the guide plate is arranged backwards relative to the partition plate along the water flow direction, the partition plate at the inlet of the turning section is arranged on the right bank, the guide plate at the inlet of the turning section is arranged on the left bank, the partition plate at the outlet of the turning section is arranged on the left bank, and the guide plate at the outlet of the turning section is arranged on the right bank.
Furthermore, the end parts of the two ends of the transverse baffle are connected with the inclined baffle to form a trapezoidal baffle structure.
Furthermore, the middle part of the side wall of the inclined baffle plate, which faces one side of the main flow pool chamber, is provided with a groove, and the transverse baffle plate is evenly provided with a plurality of rows of water passing holes which penetrate through the transverse baffle plate.
Furthermore, three rows of water passing holes penetrating through the transverse baffle are uniformly formed in the transverse baffle, and the water passing holes are of a circular structure and are equal in diameter.
Further, the length of the transverse baffle is 0.5 times of the width of the pool chamber.
Furthermore, the included angle between the inclined baffle plate and the transverse baffle plate is 60 degrees, the pier head at one end of the inclined baffle plate is semicircular, and the distance between the pier head of the inclined baffle plate and the outer side wall is 0.5 m.
Furthermore, the shapes of the pier heads of the partition plate and the guide plate are herringbone, the gradient of the upstream surface of the pier heads of the partition plate and the guide plate is 1:1, and the gradient of the downstream surface of the pier heads of the partition plate and the guide plate is 1: 3.
Further, a pebble layer is arranged at the bottom of the resting pool chamber.
The utility model has the advantages that:
1. the baffle divides the pool chamber into a main stream pool chamber and a rest pool chamber, the fishes can continue to trace after rest in the rest pool chamber, the positions and the forms of the arrangement of the rest pool chamber have little influence on the flow state and the flow rate of the water flow of the fishway main body, the influence of the water flow of the fishway main body on the flow state and the flow rate of the rest pool is also little, namely the interference between the fishway and the rest pool is small;
2. the baffle and the water baffle can concentrate water flow in the turning section, and a larger backflow area in the turning section is divided into smaller backflow areas on two sides of the water baffle, so that flow field disorder in the turning section caused by the formation of the larger backflow area in the turning section is avoided;
3. the baffle is provided with the groove and the water passing hole, so that the flow state of the rest area can be enriched, fishes are induced to trace the rest area, and the flow velocity of the main flow area is reduced;
4. the pier head shape that has certain contained angle and inclined baffle one end between inclined baffle and the horizontal baffle is semi-circular, can reduce fish injured probability, also is favorable to avoiding the floater to be detained in the fishway and reduces the backward flow district of baffle department.
Drawings
The invention will be further explained with reference to the drawings:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic plan view of the present invention;
FIG. 3 is a schematic view of the flow field of the present invention;
in the figure, an outer side wall 1, an inner side wall 2, a bottom plate 3, a baffle 4, a transverse baffle 41, a water through hole 411, an inclined baffle 42, a groove 421, a main flow pool chamber 5, a rest pool chamber 6, a water baffle 7, a clapboard 8 and a guide plate 9.
Detailed Description
As shown in fig. 1 to 2, the lower part of outside wall 1 and interior boundary wall 2 is fixed in on the bottom plate 3 of pool room, be equipped with baffle 4 in the pool room of outside wall 1 inboard, on the lower part PMKD 3 of baffle 4, baffle 4 includes horizontal baffle 41 and a plurality of oblique baffles 42 that the symmetry set up at horizontal baffle 41 both ends, the tip at horizontal baffle 41 both ends all with oblique baffle 42 fixed connection, baffle 4 separates the pool room for mainstream pool room 5 and rest pool room 6, the department of turning back of interior boundary wall 2 is equipped with breakwater 7 parallel with interior boundary wall 2, turn back section import department and turn back section exit all are equipped with the baffle 8 of installing at left bank or right bank and install at right bank or left bank and baffle 9 that baffle 8 staggers relatively, form the perps between baffle 9 and the baffle 8.
Set up baffle 4 in the pool room, baffle 4 can be separated the pool room for mainstream pool room 5 and rest pool room 6, fish can continue to trace back after having a rest in rest pool room 6, baffle 4 and breakwater 7 make the rivers in the turn section concentrate on between the pier nose of baffle 4 and breakwater 7, and separate into the less backward flow district in breakwater 7 both sides with great backward flow district in the turn section, rivers get into the turn section back from the turn section import department, all form less backward flow district in one side of 8 one sides of baffle and by breakwater 7 of leaning on upstream, the rivers of all the other parts continue to flow along the vertical joint between baffle 4 and the breakwater 7.
The water flow flows to the outlet of the turning section, smaller backflow areas are formed on one side close to the downstream partition plate 8 and one side close to the water baffle 7, partial energy dissipation is performed on the main flow by the smaller backflow areas, the bottom plate 3 can be horizontally arranged in the pond room, and a straight line section fishway connected with the turning section is usually provided with a certain slope, so that the turning section is connected with the straight line section in actual use to form a structure similar to a middle platform of a spiral stair, and fish can rest in the turning section.
Preferably, the guide plate 9 is arranged backward relative to the partition plate 8 along the water flow direction, the partition plate 8 at the inlet of the turning section is arranged on the right bank, the guide plate 9 at the inlet of the turning section is arranged on the left bank, the partition plate 8 at the outlet of the turning section is arranged on the left bank, and the guide plate 9 at the outlet of the turning section is arranged on the right bank.
The water flow firstly flows into the turning section through the vertical seam between the guide plate 9 and the baffle plate 8 at the inlet of the turning section, and flows out of the turning section through the vertical seam between the water baffle plate 7 and the baffle plate 4 and the vertical seam between the guide plate 9 and the baffle plate 8 at the outlet of the turning section, according to the swimming habit of fish school, in order to make the main flow in the turning section approach to the middle position, the vertical seam between the guide plate 9 and the baffle plate 8 switches the position before and after turning, namely the position of the vertical seam is changed left and right to realize smooth turning of fish. The vertical seam at the inlet of the 180-degree turning section is close to the left bank, namely, the partition plate 8 at the inlet of the turning section is arranged on the right bank, the guide plate 9 at the inlet of the turning section is arranged on the left bank, the vertical seam at the outlet of the 180-degree turning section is adjusted to the right bank, namely, the partition plate 8 at the outlet of the turning section is arranged on the left bank, and the guide plate 9 at the outlet of the turning section is arranged on the right bank.
Preferably, the end portions of both ends of the horizontal baffle 41 are connected to the inclined baffle 42 to form a trapezoidal baffle 4 structure.
The baffle 4 is arranged in the middle of the chamber of the turning section as much as possible, so that the effects of energy dissipation and speed reduction of the upper and lower water flows and reduction of a backflow area are balanced, and the inclined baffles 42 at the two sides of the transverse baffle 41 can play a certain role in drainage.
Preferably, the inclined baffle 42 has a groove 421 formed in the middle of the sidewall facing the main flow tank chamber 5, and the transverse baffle 41 has a plurality of rows of water holes 411 uniformly formed therein and penetrating through the transverse baffle 41.
Preferably, three rows of water passing holes 411 which penetrate through the transverse baffle 41 are uniformly formed in the transverse baffle 41, the water passing holes 411 are of a circular structure, and the diameters of the water passing holes 411 are equal.
Set up recess 421 and cross water hole 411, can enrich the flow state in rest area, induced fish traces to on the rest area, also is favorable to reducing the mainstream district velocity of flow simultaneously.
Preferably, the length of the transverse baffle 41 is 0.5 times of the width of the pool chamber. The transverse baffle 41 should not be too long or too short, and if too long, the arrangement space and fish passing space of the inclined baffle 42 are reduced, and if too short, the function of adjusting the water flow in the main flow pool chamber 5 cannot be achieved.
Preferably, an included angle between the inclined baffle 42 and the transverse baffle 41 is 60 °, a pier at one end of the inclined baffle 42 is semicircular, and a distance between the pier of the inclined baffle 42 and the outer wall 1 is 0.5 m.
The inclined baffle plate 42 and the transverse baffle plate 41 form a certain included angle, the pier head at one end of the inclined baffle plate 42 is semicircular, the probability of fish injury can be reduced, retention of floating objects in a fishway can be avoided, a backflow area at the position of the baffle plate 4 can be reduced, the inclined baffle plate 42 can also play a role in guiding flow to a certain degree, when water flows through the pier head of the inclined baffle plate 42, small backflow can be formed along the guiding of an arc line at the outer side of the semicircular pier head, in the embodiment, on the basis that the guiding angle of the conventional water baffle plate 7 is 45 degrees, the inclined baffle plate 42 deflects towards the outer side wall 1, namely, the included angle between the inclined baffle plate 42 and the transverse baffle plate 41 is 60 degrees, the baffle plate 4 is favorable for guiding the water flow of the main flow area, the distance between the pier head of the inclined baffle plate 42 and the outer side wall 1 is 0.5m, so that a vertical seam space can be reserved for the upstream water flow to flow from the rest pool chamber 6 to the downstream, and the flow velocity in a bent section can be easily sensed after the fish rest in the rest pool chamber 6, thereby continuing the upstream tour back.
Preferably, the pier heads of the partition plate 8 and the guide plate 9 are in a herringbone shape, the slope of the upstream surface of the pier heads of the partition plate 8 and the guide plate 9 is 1:1, and the slope of the downstream surface of the pier heads of the partition plate 8 and the guide plate 9 is 1: 3.
Preferably, the bottom of the resting pool chamber 6 is provided with a pebble layer, and the pebble layer can enable the resting pool chamber 6 to be in a natural state, so that fishes can rest in the resting pool chamber 6 better.
The working process of the whole device is as follows:
the water flow firstly flows into the turning section through the vertical joint between the guide plate 9 and the partition plate 8 at the inlet of the turning section, the vertical joint at the inlet firstly carries out one-time energy dissipation and speed reduction on the water flow, a part of the water flow enters the resting pool chamber 6 through the vertical joint between the inclined baffle plate 42 and the outer wall 1 and flows out from the vertical joint close to the outlet, the main water flow forms a smaller backflow area at one side close to the upstream partition plate 8 and one side close to the water baffle plate 7 and continues to flow along the channel in the main flow pool chamber 5, a smaller backflow area is formed at one side close to the downstream clapboard 8 and one side close to the water baffle 7, and finally flows out through a vertical seam at the outlet of the turning section, the fish swim in from the outlet of the turning section, can migrate along the channel in the main flow pool room 5, can enter the rest pool room 6 for rest through a vertical seam between the inclined baffle 42 and the outer wall 1, and can continue to migrate through the flow velocity in the induction turning section after the fish rest.
Claims (9)
1. The utility model provides a turn section structure for vertical seam formula fishway, includes outer side wall (1) and interior side wall (2), interior side wall (2) separate its characterized in that with upstream and downstream pond room: the utility model discloses a pond room, including outer side wall (1) and interior side wall (2), the lower part of outer side wall (1) and interior side wall is fixed in on bottom plate (3) of pond room, be equipped with baffle (4) in the pond room of outer side wall (1) inboard, on lower part PMKD (3) of baffle (4), baffle (4) include horizontal baffle (41) and a plurality of oblique baffle (42) that the symmetry set up at horizontal baffle (41) both ends, the tip at horizontal baffle (41) both ends all with oblique baffle (42) fixed connection, baffle (4) separate the pond room for mainstream pond room (5) and rest pond room (6), the department of turning back punishment of interior side wall (2) is equipped with breakwater (7) parallel with interior side wall (2), turn back section import department and turn section exit all are equipped with baffle (8) and installation bank or right bank or baffle (9) that left bank and baffle (8) staggered relatively, form vertical joint between baffle (9) and baffle (8).
2. The structure of a turning section for a vertical slotted fishway of claim 1, wherein: the baffle (9) is set up along following the backward setting of rivers direction relative baffle (8), and baffle (8) of turn section import department are installed at the right bank, and baffle (9) of turn section import department are installed at the left bank, and baffle (8) of turn section exit are installed at the left bank, and baffle (9) of turn section exit are installed at the right bank.
3. The structure of a turning section for a vertical slotted fishway of claim 1, wherein: the end parts of the two ends of the transverse baffle (41) are connected with the inclined baffle (42) to form a trapezoidal baffle (4) structure.
4. The structure of a turnaround section for a troffer fish way according to claim 1 or 3, wherein: the middle part of the side wall of the inclined baffle (42) facing the main flow tank chamber (5) is provided with a groove (421), and the transverse baffle (41) is uniformly provided with a plurality of rows of water passing holes (411) penetrating through the transverse baffle (41).
5. The structure of a turning section for a vertical slotted fishway according to claim 4, characterized in that: three rows of water passing holes (411) penetrating through the transverse baffle (41) are uniformly formed in the transverse baffle (41), and the water passing holes (411) are of a circular structure and are equal in diameter.
6. The structure of a turning section for a vertical slotted fishway according to claim 3, characterized in that: the length of the transverse baffle (41) is 0.5 times of the width of the pool chamber.
7. The structure of a turning section for a vertical slotted fishway according to claim 3, characterized in that: the included angle between the inclined baffle plate (42) and the transverse baffle plate (41) is 60 degrees, the pier head at one end of the inclined baffle plate (42) is semicircular, and the distance between the pier head of the inclined baffle plate (42) and the outer side wall (1) is 0.5 m.
8. The structure of a turnaround section for a troffer fish way according to claim 1 or 2, wherein: the pier heads of the partition plate (8) and the guide plate (9) are in a herringbone shape, the gradient of the upstream surface of the pier heads of the partition plate (8) and the guide plate (9) is 1:1, and the gradient of the downstream surface of the pier heads of the partition plate (8) and the guide plate (9) is 1: 3.
9. The structure of a turning section for a vertical slotted fishway of claim 1, wherein: the bottom of the resting pool chamber (6) is provided with a pebble layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120002467.5U CN214656855U (en) | 2021-01-04 | 2021-01-04 | A turn section structure for standing seam formula fishway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120002467.5U CN214656855U (en) | 2021-01-04 | 2021-01-04 | A turn section structure for standing seam formula fishway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214656855U true CN214656855U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120002467.5U Active CN214656855U (en) | 2021-01-04 | 2021-01-04 | A turn section structure for standing seam formula fishway |
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|---|---|
| CN (1) | CN214656855U (en) |
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2021
- 2021-01-04 CN CN202120002467.5U patent/CN214656855U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HUBEI JIYANG ELECTRIC POWER TECHNOLOGY CO.,LTD. Assignor: CHINA THREE GORGES University Contract record no.: X2022980018533 Denomination of utility model: A turning section structure for vertical seam fishway Granted publication date: 20211109 License type: Exclusive License Record date: 20221024 |
|
| EE01 | Entry into force of recordation of patent licensing contract |