CN206256432U - A kind of dam fish pass structure - Google Patents
A kind of dam fish pass structure Download PDFInfo
- Publication number
- CN206256432U CN206256432U CN201621175242.5U CN201621175242U CN206256432U CN 206256432 U CN206256432 U CN 206256432U CN 201621175242 U CN201621175242 U CN 201621175242U CN 206256432 U CN206256432 U CN 206256432U
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- Prior art keywords
- fish pass
- passage
- rotary valve
- pass structure
- fish
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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
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/60—Ecological corridors or buffer zones
Abstract
The utility model proposes a kind of dam fish pass structure, including upstream passageway, rotation valve passage and downstream passage, it is characterized in that, the rotation valve passage is located between upstream passageway and downstream passage, one rotary shaft of fixed installation in the rotation valve passage, rotary valve blade is installed, the rotary valve blade, equipped with hinge type leaf door, stopping means is installed on the rotary valve blade near one side of rotation valve passage in the rotary shaft.The utility model can realize controlling the current rotating speed in fish passage, compared to the existing simpler reliability of rotary valve fish channel structure, advantageously in engineer applied.
Description
Technical field
The utility model is related to Ecological waterscape field, more particularly to a kind of dam fish pass structure.
Background technology
Growing with hydropower, application of the dam in the whole world is more and more wider, and people increasingly tend to generate electricity
Ability is strong, the small hydroelectric generator of environmental pollution, therefore has manually built ten hundreds of dams.These facilities are really us
There is provided a considerable number of electric energy, but but destroy the ecological balance in original river.Built to obtain high water head difference
Dam has separated the current of upstream and downstream so that originally the fish in river cannot migration laid eggs to upstream, cause the reduction of fish
Even become extinct.Such as Ge Zhou Ba build up after the Changjiang river Endemic fish Wild Chinese Sturgeon cannot migration laid eggs to upstream, its quantity is
It is a large amount of to reduce.In order to protecting ecology is balanced, it has to manually breed fish fry, inefficiency.In order to solve this problem, Ren Menshe
Fish pass is counted.
The design of dam fish pass structure --- fish pass, mainly consider fish traces back habit.In the downstream of gate dam, fish are normal
Fish pass is drawn into by current.Fish need to overcome flow velocity to trace back trip to upstream by the strength of itself in fish pass.It is descending
Fish can be gone downstream by fish pass.Traditional fish pass is exactly a passage for the big above and below the dam water head energy difference of large-scale abatement, its
Conventional groove body cross section is rectangle, and the water-head of tank upstream and downstream is divided into several small steps with dividing plate, and plate was provided with
Fish hole, energy is eliminated using water cushion, friction drag, opposite jet flow and diffusion.Fish pass press structure type, be divided into pool fish pass,
Slot type fish pass and rotary valve fish pass etc..Pool fish pass is made up of the pond of a string of connection upstream and downstream, very close to natural river course, but its
It is applicable head small, takes up an area greatly, so applicability is restricted；Slot type fish pass using water cushion, friction drag and opposite jet flow, diffusion come
Energy dissipating, improves fluidised form, reduces the flow velocity of fish pass, and can in the form of adjusting fish pass, position, size carry out adjusted stream Zhong Hui
The need for swimming fish, the structure of this kind of fish pass is relatively simple, easy to maintenance, modern age fish pass mostly use this form, but its for
Same river, also can only provide a kind of flow velocity according to the height of water level within one period；Rotary valve fish pass is revolved by controlling
The rotating speed of rotary valve controls the flow velocity in fish pass, and the fish pass can provide different flow velocitys crossing in fish passage, for same
Different migrants in bar river, fish efficiency excessively is higher, but rotary valve fish channel structure of the prior art is more complicated, and engineering should
It is larger with difficulty.
Utility model content
In order to solve the above problems, the utility model proposes a kind of dam fish pass structure, including upstream passageway, rotary valve
Passage and downstream passage, it is characterised in that the rotation valve passage is located between upstream passageway and downstream passage, the rotary valve
Rotary valve blade is installed, the rotary valve blade leads near rotary valve in passage in rotary shaft described in one rotary shaft of fixed installation
Stopping means is installed on the rotary valve blade equipped with hinge type leaf door in the one side in road.
Further, the upstream passageway, downstream passage are square tube or cylindrical shape.
Further, the rotation valve passage is the vertical cylinder placed.
Further, the rotary valve blade is symmetrical arranged, and number is 4,6,8 or 10.
Further, the width of the hinge type leaf door is 0.1-0.3 times of rotary valve width of blade.
Further, the hinge type leaf door is unidirectional opens, and the angle [alpha] that leaf door is opened is between 0 ° to 80 °.
Further, the stopping means includes connecting rod and multiple position-limitting pins.
Further, the stopping means is two.
The utility model is poor using big above and below the dam head pressure, and rotating vane is controlled by changing hinge opening and closing angle
Rotating speed, so as to control the new fish pass facility of flow rate of water flow in fish pass, efficiently solves the problems, such as that dam crosses fish.
Brief description of the drawings
Fig. 1 is a kind of 3-D view of dam fish pass structure of the utility model；
Fig. 2 is schematic top plan view of the present utility model；
Fig. 3 is the A-A symmetrical blading enlarged drawings in Fig. 1；
Fig. 4 is the front view of Section A-A in Fig. 1；
Fig. 5 is the rearview of Section A-A in Fig. 1；
Fig. 6 is the 3-D view of hinge type rotary valve in the utility model；
Fig. 7 is the partial enlargement 3-D view of stopping means in the utility model；
In figure：Under 1- rotary valves blade, 2- hinge types leaf door, 3- rotary shafts, 4- upstream passageways, 5- rotation valve passage, 6-
Trip passage, 7- stopping means, 8- connecting rods, 9- position-limitting pins.
Specific embodiment
A kind of specific embodiment of dam fish pass structure of the utility model is described in detail below in conjunction with the accompanying drawings, should
Embodiment is merely to illustrate the utility model rather than limits scope of the present utility model, and those skilled in the art are to this practicality
The modification of the new various equivalent form of values falls within the application appended claims limited range.
As depicted in figs. 1 and 2, the utility model dam fish pass structure is a fish passage excessively, and the fish pass is divided into upstream and leads to
Road 4, rotation valve passage 5 and downstream passage 6, rotation valve passage 5 are located between upstream passageway 4 and downstream passage 6, upstream passageway 4
It is square tube or cylindrical shape with downstream passage 6, rotation valve passage 5 is the cylinder placed vertically, and the size of passage depends on dam
Upstream and downstream head difference and the size of water conservancy projects region, one rotary shaft 3 of fixed installation, rotary shaft 3 in rotation valve passage 5
On be symmetrically installed multiple rotary valve blades 1, when there is head difference full of water and upstream and downstream in whole fish pass, such as Fig. 6, rotary shaft
Symmetrical on 32 one, hinge type leaf door is in opening, and one is in closure state, therefore is existed on symmetrical rotary valve blade 1
Pressure differential causes that rotary shaft 3 is rotated；The quantity of rotary valve blade 1 is 4,6,8 or 10, the quantity of rotary valve blade 1
Depending on the yardstick and specific actual requirement of rotation valve passage 5, in the present embodiment, rotary valve blade 1 is 4；Each rotary valve
Blade 1 is equipped with hinge type leaf door 2, such as Fig. 4 and Fig. 5 near one side of rotation valve passage 5, and the width of hinge type leaf door 2 is rotation
0.1-0.3 times of the width of rotary valve blade 1, hinge type leaf door 2 is unidirectional to be opened, such as Fig. 6, and opening angle is by hinge type leaf door 2
Two stopping means 7 are controlled, and when preventing the stopping means 7 from breaking down, another can also work on, and ensure that fish pass is used
Safety and stability, such as Fig. 7, stopping means 7 includes connecting rod 8 and multiple position-limitting pins 9, is arranged on not by adjusting connecting rod 8
On same position-limitting pin 9, thus it is possible to vary the opening angle of stopping means 7, and then the angle that control hinge type leaf door 2 is opened, and
Change the difference in areas of rotary valve blade 1, so as to change the pressure differential of rotary valve blade 1 so that the rotating speed of rotary valve blade 1 changes,
So as to control the flow velocity of current in fish pass, because variety classes fish migration hobby flow velocity is different, water is controlled by stopping means 7
Flow velocity, realize purpose of the migrant in fish pass from downstream migration to upstream, such as Fig. 3, the angle [alpha] that hinge type leaf door 2 is opened
Between 0 ° to 80 °.
Such as Fig. 2, operationally, the hinge type leaf door 2 for being merely able to unilateral unlatching can only be to suitable for the utility model fish pass structure
Clockwise is opened, and upstream passageway 4, rotation valve passage 5 and downstream passage 6 are full of water, when the water impact rotation in upstream passageway 4
During rotary valve blade 1 in rotary valve passage 5, hinge type leaf door 2 on two rotary valve blades 1 of top is in due to the pressure of water
Opening, the hinge type leaf door 2 on two rotary valve blades 1 of lower section is due to the pressure presentation closed mode of water, current side
To the left and right there is pressure differential in both sides symmetrical rotary valve disc piece 1 so that rotary valve blade 1 around the rotate counterclockwise of rotary shaft 3, when symmetrical
The horizontal direction of rotary valve blade 1 it is identical with water (flow) direction when, hinge type leaf door 2 opening direction reverse so that ensure rotation
Valve disc piece 1 keeps single direction rotation state in the presence of current.During utility model works, the hinge type on rotary valve blade 1
Leaf door 2 remains two in opening, and two other is in closed mode.
Due to the presence of rotary valve blade 1, therefore the flow velocity of water reduces in fish pass, and the fish in downstream can be by downstream passage
6 enter fish pass, and as the rotation of rotary valve blade 1 is by rotating the migration of valve passage 5 to upstream passageway 4, and then migration is supreme
Trip.
When α is 0 °, current are static in fish pass, and fish pass is presented closed mode；When α is 80 °, the rotating speed of rotary valve blade 1
Maximum, the water velocity highest in fish pass, flow velocity maximum is determined by water levels of upstream and downstream difference and fishway size.
Because variety classes fish migration hobby flow velocity is different, fish pass structure of the present utility model can be by controlling hinge type
Leaf door opening angle controls flow rate of water flow, and with suitable for different types of migrant, therefore universality is very strong, application valency
Value is big.
Preferred embodiment of the present utility model is described in detail above in association with accompanying drawing, but, the utility model is not limited
Detail in above-mentioned implementation method, in range of the technology design of the present utility model, can be to skill of the present utility model
Art scheme carries out various simple variants, and these simple variants belong to protection domain of the present utility model.
Claims (8)
1. a kind of dam fish pass structure, including upstream passageway (4), rotation valve passage (5) and downstream passage (6), it is characterised in that
Rotation valve passage (5) fixedly mounts between upstream passageway (4) and downstream passage (6) in rotation valve passage (5)
One rotary shaft (3), installs rotary valve blade (1) on the rotary shaft (3), the rotary valve blade (1) is led near rotary valve
Equipped with hinge type leaf door (2) stopping means (7) is installed on the rotary valve blade (1) in the one side in road (5).
2. dam fish pass structure as claimed in claim 1, it is characterised in that the upstream passageway (4), downstream passage (6) are
Square tube or cylindrical shape.
3. dam fish pass structure as claimed in claim 1, it is characterised in that the rotation valve passage (5) is vertical placement
Cylinder.
4. dam fish pass structure as claimed in claim 1, it is characterised in that the rotary valve blade (1) is symmetrical arranged, number
It is 4,6,8 or 10.
5. dam fish pass structure as claimed in claim 1, it is characterised in that the width of hinge type leaf door (2) is rotation
0.1-0.3 times of valve disc piece (1) width.
6. the dam fish pass structure as described in claim 1 or 5, it is characterised in that hinge type leaf door (2) is unidirectionally opened,
The angle [alpha] that Ye Men is opened is between 0 ° to 80 °.
7. dam fish pass structure as claimed in claim 1, it is characterised in that the stopping means (7) includes connecting rod (8) and many
Individual position-limitting pin (9).
8. the dam fish pass structure as described in claim 1 or 7, it is characterised in that the stopping means (7) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621175242.5U CN206256432U (en) | 2016-10-27 | 2016-10-27 | A kind of dam fish pass structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621175242.5U CN206256432U (en) | 2016-10-27 | 2016-10-27 | A kind of dam fish pass structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206256432U true CN206256432U (en) | 2017-06-16 |
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ID=59024863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621175242.5U Active CN206256432U (en) | 2016-10-27 | 2016-10-27 | A kind of dam fish pass structure |
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| Country | Link |
|---|---|
| CN (1) | CN206256432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567368A (en) * | 2016-10-27 | 2017-04-19 | 中国船舶科学研究中心上海分部 | Facility for fishes to pass through dam |
-
2016
- 2016-10-27 CN CN201621175242.5U patent/CN206256432U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567368A (en) * | 2016-10-27 | 2017-04-19 | 中国船舶科学研究中心上海分部 | Facility for fishes to pass through dam |
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| GR01 | Patent grant |