CN207405566U - A kind of fish pass import attraction rate research experiment device - Google Patents
A kind of fish pass import attraction rate research experiment device Download PDFInfo
- Publication number
- CN207405566U CN207405566U CN201721423954.9U CN201721423954U CN207405566U CN 207405566 U CN207405566 U CN 207405566U CN 201721423954 U CN201721423954 U CN 201721423954U CN 207405566 U CN207405566 U CN 207405566U
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- China
- Prior art keywords
- fish pass
- pond
- fish
- flashboard
- pass
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Abstract
A kind of fish pass import attraction rate research experiment device, including the first pond and the second pond, it is connected between first pond and the second pond by fish pass, fish pass is divided into the first fish pass, the second fish pass and the 3rd fish pass, second fish pass and the connection of the 3rd fish pass, the first pond and the second pond, the first fish pass both ends are respectively equipped with waterpower grid and spiral gate, the spiral gate of first fish pass one end is arranged on the first basin side wall, and waterpower grid are arranged on the first fish pass and the second fish pass intersection.Using the above structure, by adjusting fish pass entrance width and fish pass outflow, the attraction rate of fish pass import is improved, finds the fish pass inlet design that a kind of entrance width is optimal, outflow is optimal.
Description
Technical field
The utility model is related to eco-hydraulic engineering fields, particularly a kind of fish pass import attraction rate research experiment device.
Background technology
The barrage of hydraulic and hydroelectric engineering is built a dam, and can change the vertical communication in river, the particularly migration to aquatile
Tremendous influence is generated, is especially produced serious influence to the fish in engineering region river, in order to reduce water conservancy and hydropower
Influence of the engineering to fish migration, has built many fish pass structures, and fish pass is exactly wherein most widely used one kind.Fish pass designs
For flow velocity depending on fish swimming capacity, fish pass design current velocity is too small, and design cost increases, and fish pass attracts stream inadequate；Fish pass is set
Meter flow velocity is excessive, and fish can not pass through fish pass water flow inside obstacle.Fish pass import attracts stream sufficiently strong, so that in dam tail
It can also be perceived at water pipe by fish.But the key of fish pass quality is that can fish find fish pass import in practice, is had therefore
Many attraction fish find the method that fish pass import is traced back, and are exactly that one of which is effective by adjusting fish pass import current
Method using fish to the sensing capability of current, induces fish to enter fish pass by current.But in practice since fish pass is into mouth width
Degree is fixed, and fish pass outflow is non-adjustable, cause because can not according to the variation more effective fish pass of setting of fluidised form under dam into
Mouthful fluidised form and be unable to reach attracting effect.
The content of the invention
Technical problem to be solved in the utility model is a kind of fish pass import attraction rate research experiment device, passes through adjusting
Fish pass entrance width and fish pass outflow improve the attraction rate of fish pass import, find that a kind of entrance width is optimal, outflow is optimal
Fish pass inlet design.
In order to solve the above technical problems, technical solution is used by the utility model：A kind of fish pass import attraction rate is ground
Study carefully experimental provision, including the first pond and the second pond, connected between the first pond and the second pond by fish pass, fish pass is divided into
First fish pass, the second fish pass and the 3rd fish pass, the second fish pass and the connection of the 3rd fish pass, the first pond and the second pond, the first fish
Road both ends are respectively equipped with waterpower grid and spiral gate, and the spiral gate of first fish pass one end is arranged on the first basin side wall, water
Power grid are arranged on the first fish pass and the second fish pass intersection.
In preferred scheme, one end that second fish pass is connected with the second pond is equipped with fluid pressure type gate.
In preferred scheme, the waterpower grid include waterpower screen, and waterpower screen is fixed in shaft, shaft two
End is fixed on water outlet top and bottom.
In preferred scheme, the fluid pressure type gate includes flashboard one end and supporting rod, and the second fish pass bottom surface is equipped with
Sliding slot, flashboard one end and supporting rod one end are hinged, and flashboard and the supporting rod other end are respectively articulated with and are arranged on sliding slot both ends, on flashboard
Telescopic rod is additionally provided with, telescopic rod one end is hinged with flashboard interlude, and the other end is hinged with sliding slot interlude.
In preferred scheme, the flashboard height is identical with the second fish pass height.
A kind of fish pass import attraction rate research experiment device provided by the utility model, by using said structure, tool
There is following advantageous effect：
（1）The flow width of fish pass fish inlet is adjusted by fluid pressure type gate, so as to fulfill the adjusting of flow rate of water flow, is passed through
Fish under different flow rate of water flow states trace back rate, can obtain optimal fish pass design width；
（2）By waterpower grid, the direction of different current is adjusted, rate is traced back by the fish under different water (flow) direction states,
Optimal fish pass designed inclination angle degree can be obtained；
（3）Comprehensive optimal fish pass width and fish pass designed inclination angle degree can promote fish and trace back rate, reach to ecology
Environment better preserved.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples：
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the waterpower gate part structure diagram of the utility model.
Fig. 3 is the fluid pressure type gate structure schematic diagram of the utility model.
In figure：First pond 1, the second pond 2, waterpower grid 3, the first fish pass 4, the second fish pass 5, the 3rd fish pass 6, fluid pressure type
Gate 7, spiral gate 8, waterpower screen 301, shaft 302, sliding slot 501, flashboard 701, supporting rod 702, telescopic rod 703.
Specific embodiment
Embodiment 1：
In Fig. 1, a kind of fish pass import attraction rate research experiment device, including the first pond 1 and the second pond 2, first
Pond is connected between 1 and second pond 2 by fish pass, and fish pass is divided into the first fish pass 4, the second fish pass 5 and the 3rd fish pass 6, and second
Fish pass 5 is connected with the 3rd fish pass 6, and the first pond 1 and the second pond 2,4 both ends of the first fish pass are respectively equipped with waterpower grid 3 and spiral
Gate 8, the spiral gate 8 of 4 one end of the first fish pass are arranged on 1 side wall of the first pond, and waterpower grid 3 are arranged on 4 He of the first fish pass
Second fish pass, 5 intersection.
Embodiment 2：
On the basis of embodiment 1：
One end that second fish pass 5 is connected with the second pond 2 is equipped with fluid pressure type gate 7.
Fluid pressure type gate 7 adjusts the gradient of flashboard simultaneously, realizes that the opening degree of fish pass is adjusted, so as to adjust current stream
Speed, the fluid pressure type gate 7 in this can also select other gates（Such as spiral gate）Instead of.
Embodiment 3：
On the basis of embodiment 2：
The waterpower grid 3 include waterpower screen 301, and waterpower screen 301 is fixed in shaft 302,302 liang of shaft
End is fixed on water outlet top and bottom.
Using the above structure, the angular adjustment of current can be realized by adjusting the angle of waterpower screen 301, so as to
To optimal angle of current, it is then determined that fish pass designed inclination angle degree.
Embodiment 4：
On the basis of embodiment 2：
The fluid pressure type gate 7 includes 701 one end of flashboard and supporting rod 702, and 5 bottom surface of the second fish pass is equipped with sliding slot
501,701 one end of flashboard and 702 one end of supporting rod are hinged, and flashboard 701 and 702 other end of supporting rod are respectively articulated with and are arranged on sliding slot
501 both ends are additionally provided with telescopic rod 703 on flashboard 701, and 703 one end of telescopic rod is hinged with 701 interlude of flashboard, the other end and cunning
501 interlude of slot is hinged.
In preferred scheme, 701 height of flashboard is identical with 5 height of the second fish pass.
Pass through the flexible of telescopic rod 703, you can realize that the angle of inclination of flashboard 701 is adjusted, opened so as to fulfill the second fish pass 5
The adjusting of degree.
The concrete principle of the utility model is as follows：
1）Spiral gate 8 is closed, current are flowed from the first pond 1 to the second pond 2, then adjust fluid pressure type gate 7
Angle of inclination changes fish pass aperture, and records the fish under the conditions of different fish pass apertures and trace back rate, determines that optimal fish pass is set
Count aperture；
2）Spiral gate 8 is opened, current are flowed from the first pond 1 to the second pond 2, then adjust the waterpower of waterpower grid 3
301 angle of inclination of screen, during sheet, fluid pressure type gate 7 keeps certain, is recorded in different 301 angles of inclination of waterpower screen
Under the conditions of fish trace back rate, determine optimal fish pass designed inclination angle degree.
Claims (5)
1. a kind of fish pass import attraction rate research experiment device, including the first pond（1）With the second pond（2）, it is characterized in that：The
One pond（1）With the second pond（2）Between connected by fish pass, fish pass is divided into the first fish pass（4）, the second fish pass（5）With the 3rd
Fish pass（6）, the second fish pass（5）With the 3rd fish pass（6）Connection, the first pond（1）With the second pond（2）, the first fish pass（4）Both ends
It is respectively equipped with waterpower grid（3）And spiral gate（8）, the first fish pass（4）The spiral gate of one end（8）It is arranged on the first pond（1）
On side wall, waterpower grid（3）It is arranged on the first fish pass（4）With the second fish pass（5）Intersection.
2. a kind of fish pass import attraction rate research experiment device according to claim 1, it is characterised in that：Described second
Fish pass（5）With the second pond（2）One end of connection is equipped with fluid pressure type gate（7）.
3. a kind of fish pass import attraction rate research experiment device according to claim 1, it is characterised in that：The waterpower
Grid（3）Including waterpower screen（301）, waterpower screen（301）It is fixed at shaft（302）On, shaft（302）Both ends are fixed on
On water outlet top and bottom.
4. a kind of fish pass import attraction rate research experiment device according to claim 2, it is characterised in that：The hydraulic pressure
Formula gate（7）Including flashboard（701）One end and supporting rod（702）, the second fish pass（5）Bottom surface is equipped with sliding slot（501）, flashboard
（701）One end and supporting rod（702）One end is hinged, flashboard（701）And supporting rod（702）The other end, which is respectively articulated with, is arranged on sliding slot
（501）Both ends, flashboard（701）On be additionally provided with telescopic rod（703）, telescopic rod（703）One end and flashboard（701）Interlude is hinged,
The other end and sliding slot（501）Interlude is hinged.
5. a kind of fish pass import attraction rate research experiment device according to claim 4, it is characterised in that：The flashboard
（701）Height and the second fish pass（5）It is highly identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721423954.9U CN207405566U (en) | 2017-10-31 | 2017-10-31 | A kind of fish pass import attraction rate research experiment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721423954.9U CN207405566U (en) | 2017-10-31 | 2017-10-31 | A kind of fish pass import attraction rate research experiment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207405566U true CN207405566U (en) | 2018-05-25 |
Family
ID=62408374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721423954.9U Expired - Fee Related CN207405566U (en) | 2017-10-31 | 2017-10-31 | A kind of fish pass import attraction rate research experiment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207405566U (en) |
-
2017
- 2017-10-31 CN CN201721423954.9U patent/CN207405566U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180525 Termination date: 20181031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |