CN204982817U - Two perps formula fishways - Google Patents
Two perps formula fishways Download PDFInfo
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- CN204982817U CN204982817U CN201520475125.XU CN201520475125U CN204982817U CN 204982817 U CN204982817 U CN 204982817U CN 201520475125 U CN201520475125 U CN 201520475125U CN 204982817 U CN204982817 U CN 204982817U
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- Prior art keywords
- perps
- fish
- guide plate
- room
- dividing plate
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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
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- Farming Of Fish And Shellfish (AREA)
Abstract
(B, ) the utility model discloses a two perps formula fishways. Including twice fishway side wall (1), the inboard symmetry of twice fishway side wall is equipped with a set of baffle (3), and the baffle divide into a plurality of pond room (5) with two perps formula fishways length direction, leave the clearance between two sets of baffles, be equipped with baffle (2) in every relative baffle clearance updrift side, be equipped with between baffle (2) both ends and baffle (3) perps (4). The utility model discloses can make the abundant mixing of rivers in the fishway, improve energy dissipation effect, reduce the velocity of water flow of perps department, resistance that the fish that reduce the migration received for it is easier that fish pass the fishway, improved fish quantity and effect, is favorable to the ecological protection (b) (b) in river. (B, )
Description
Technical field
the utility model relates to a kind of two vertical seam type fish channel, belongs to ecological protection technical field in Hydraulic and Hydro-Power Engineering.
Background technology
when building dam, in order to the migration passage preventing dam from stopping fish, requirement must build fish pass structure.Cross fish passage can be divided into diaphragm plate type fish pass, primary stance fish pass, slot type fish pass and special structure form fish pass etc. by its structural shape and hydraulic characteristic.Diaphragm plate type fish pass can be divided into overflow weir formula by dividing plate pattern, floods outlet type, vertical seam type, combined type.The two vertical seam type fish channel of characteristic according to the feature of domestic water electrical engineering and straddling fish stocks is modal form of structure.Typical two vertical seam type fish channel comprises fish pass abutment wall, guide plate and dividing plate, by guide plate and dividing plate, fish pass is divided into room, multiple pond, guide plate and dividing plate are oppositely arranged, and are reserved with room, pond perps between guide plate and dividing plate, pond is interconnected by perps between room, and fish are sailed against the current by room, pond perps.A upper pond indoor water flows through after perps enters room, next pond, and current encounter guide plate, dividing plate forms recirculating zone, with current blending below, play the effect of energy dissipating, reduce the flow velocity of current, thus the resistance that reduction straddling fish stocks are subject to, make fish easierly can pass fish pass.But find in actual use; current in the room, pond of existing pair of vertical seam type fish channel do not obtain abundant blending; effect of energy dissipation is poor; cause perps place flow rate of water flow larger; the resistance that the fish of migration are subject to is larger; cause fish to pass fish pass difficulty to increase; and then fish will reduce through the quantity of fish pass; make the impact of water power hydraulic engineering on fish migration larger; be unfavorable for the ecological protection in river; and the turning of existing clapboard end is right angle, fish are being easily subject to mechanical injuries by during the perps of room, pond.
Utility model content
the purpose of this utility model is, provides a kind of two vertical seam type fish channel.The abundant blending of current can be made, improve effect of energy dissipation, reduce perps place flow rate of water flow; reduce the resistance that the fish of migration are subject to, make fish pass fish pass and be more prone to, and then fish will increase through the quantity of fish pass; improve fish effect, be conducive to the ecological protection in river.
the technical solution of the utility model:
a kind of two vertical seam type fish channel, comprises twice fish pass abutment wall; Be arranged with one group of dividing plate inside twice fish pass abutment wall, two vertical seam type fish channel length direction is divided into room, multiple pond by dividing plate; Gap is left between two groups of dividing plates; Be provided with guide plate in each relative spacer gap updrift side, between guide plate two ends and dividing plate, be provided with perps.
in aforementioned pair of vertical seam type fish channel, the spacing of described guide plate upstream face and dividing plate upstream face is 300mm.
in aforementioned pair of vertical seam type fish channel, room, described pond width W is 7 times of perps width B, and room, pond length L is 8 times of room, pond perps width B.
in aforementioned pair of vertical seam type fish channel, described guide plate length is 1/2 of room, pond width W, and septum plate length is 1/4 of room, pond width W.
in aforementioned pair of vertical seam type fish channel, described perps two sides and the angle α between guide plate and dividing plate downstream face are 40 ~ 50 degree; Perps two sides and the angle β between guide plate and dividing plate end face are 60 ~ 70 degree.
in aforementioned pair of vertical seam type fish channel, described perps two sides and the angle α between guide plate and dividing plate downstream face are 45 degree; Perps two sides and the angle β between guide plate and dividing plate end face are 63 degree.
compared with prior art, the utility model can make the abundant blending of current in fish pass, improves effect of energy dissipation; reduce perps place flow rate of water flow, the resistance that the fish reducing migration are subject to, make fish pass fish pass and be more prone to; improve fish quantity and effect, be conducive to the ecological protection in river.
Accompanying drawing explanation
fig. 1 is structural representation of the present utility model;
fig. 2 is the top view of Fig. 1;
fig. 3 is the structural representation of existing pair of vertical seam type fish channel.
mark in accompanying drawing: 1-fish pass abutment wall; 2-guide plate; 3-dividing plate; 4-perps; Room, 5-pond.
Detailed description of the invention
below in conjunction with drawings and Examples, the utility model is described in further detail, but not as to any restriction of the present utility model.
a kind of two vertical seam type fish channel, as depicted in figs. 1 and 2.Arrow in Fig. 2 represents water (flow) direction, and fish is that adverse current is moved about.Two vertical seam type fish channel comprises twice fish pass abutment wall 1; Be arranged with one group of dividing plate 3 inside twice fish pass abutment wall, two vertical seam type fish channel length direction is divided into room, multiple pond 5 by dividing plate; Gap is left between two groups of dividing plates; Be provided with guide plate 2 in each relative spacer gap updrift side, between guide plate 2 two ends and dividing plate 3, be provided with perps 4.The spacing of guide plate 2 upstream face and dividing plate 3 upstream face is 300mm.Room, pond width W is 7 times of perps width B, and room, pond length L is 8 times of room, pond perps width B.Guide plate length is 1/2 of room, pond width W, and septum plate length is 1/4 of room, pond width W.Perps 4 two sides and the angle α between guide plate and dividing plate downstream face are 40 ~ 50 degree, and the best is 45 degree; Perps 4 two sides and the angle β between guide plate and dividing plate end face are 60 ~ 70 degree, and the best is 63 degree.
Embodiment
this example is the improvement to existing vertical seam type fish channel, and as shown in Figure 3, as seen from Figure 3, existing vertical seam type fish channel is only provided with a perps to existing vertical seam type fish channel.Vertical seam type fish channel guide plate 2 and dividing plate 3 are on one wire, not dislocation.Guide plate 2 and dividing plate 3 end face are planes in addition, do not have chamfering.The improvement of this example to existing pair of vertical seam type fish channel mainly contains 3 points, and first is be provided with two perps, can increase fish amount; To be guide plate 2 with dividing plate 3 misplace second point that 300mm is arranged.Be thirdly that guide plate 2 and dividing plate 3 end face are provided with chamfering, make perps 4 inclined.Current obliquely enter next room, pond; the abundant blending of current can be made; improve effect of energy dissipation; reduce perps place flow rate of water flow; reduce the resistance that the fish of migration are subject to, make fish pass fish pass and be more prone to, and then fish will increase through the quantity of fish pass; improve fish effect, be conducive to the ecological protection in river.Be adapted at fish channel structure field to apply.
Claims (6)
1. a two vertical seam type fish channel, comprises twice fish pass abutment wall (1); It is characterized in that: be arranged with one group of dividing plate (3) inside twice fish pass abutment wall, two vertical seam type fish channel length direction is divided into room, multiple pond (5) by dividing plate; Gap is left between two groups of dividing plates; Be provided with guide plate (2) in each relative spacer gap updrift side, between guide plate (2) two ends and dividing plate (3), be provided with perps (4).
2. two vertical seam type fish channel according to claim 1, is characterized in that: the spacing of described guide plate (2) upstream face and dividing plate (3) upstream face is 300mm.
3. two vertical seam type fish channel according to claim 1, is characterized in that: room, described pond width W is 7 times of perps width B, and room, pond length L is 8 times of room, pond perps width B.
4. two vertical seam type fish channel according to claim 1, it is characterized in that: described guide plate length is 1/2 of room, pond width W, septum plate length is 1/4 of room, pond width W.
5. two vertical seam type fish channel according to claim 1, is characterized in that: described perps (4) two sides and the angle α between guide plate and dividing plate downstream face are 40 ~ 50 degree; Perps (4) two sides and the angle β between guide plate and dividing plate end face are 60 ~ 70 degree.
6. two vertical seam type fish channel according to claim 1, is characterized in that: described perps (4) two sides and the angle α between guide plate and dividing plate downstream face are 45 degree; Perps (4) two sides and the angle β between guide plate and dividing plate end face are 63 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520475125.XU CN204982817U (en) | 2015-07-06 | 2015-07-06 | Two perps formula fishways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520475125.XU CN204982817U (en) | 2015-07-06 | 2015-07-06 | Two perps formula fishways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204982817U true CN204982817U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520475125.XU Active CN204982817U (en) | 2015-07-06 | 2015-07-06 | Two perps formula fishways |
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| CN (1) | CN204982817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319260A (en) * | 2021-12-30 | 2022-04-12 | 大连理工大学 | Combined fishway with multiple vertical seams and rectangular weirs |
-
2015
- 2015-07-06 CN CN201520475125.XU patent/CN204982817U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319260A (en) * | 2021-12-30 | 2022-04-12 | 大连理工大学 | Combined fishway with multiple vertical seams and rectangular weirs |
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