CN203904942U - Vertical slot fishway provided with 180-degree curve sections - Google Patents
Vertical slot fishway provided with 180-degree curve sections Download PDFInfo
- Publication number
- CN203904942U CN203904942U CN201420132777.9U CN201420132777U CN203904942U CN 203904942 U CN203904942 U CN 203904942U CN 201420132777 U CN201420132777 U CN 201420132777U CN 203904942 U CN203904942 U CN 203904942U
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- Prior art keywords
- pond
- fish
- upstream
- guide plate
- pier nose
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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
The utility model relates to a vertical slot fishway provided with 180-degree curve sections. The vertical slot fishway comprises a straight section formed by connecting a plurality of pools with inclined bottoms; the 180-degree curve sections which enable the fishway to curve are inserted in the pools; each 180-degree curve section comprises a semicircular outer wall and an inner wall for separating pools at upstream and downstream; a turning point of each inner wall is provided with a guide plate which is parallel to upstream partitions and is shorter than the upstream partitions; the inner side of the outer wall is uniformly provided with two curve section guide plates along the circumferential direction. The vertical slot fishway provided with the 180-degree curve sections are arranged, a site condition is fully utilized and the space of the fishway is saved. As guide plates and curve section guide plates are adopted, flow structures in the curve sections are obviously improved, and the vertical slot fishway curves smoothly. The 180-degree curve sections provide a wide rest space and a good flow environment for fish, have the function of a rest pool, and are favorable for fish to gather strength in the upstream process and continue the upstream travel.
Description
Technical field
The utility model relates to a kind of vertical seam type fish channel that half-turn section is set, and is a kind of hydraulic facility, is a kind of environmental protection facility for sluice, dam.
Background technology
Vertical seam type fish channel is a kind of pond formula fish pass, have flow-shape stable, to fluctuation of water table adaptable, cross fish efficiency high-technology advantage, and become the fish pass arrangement extensively adopting both at home and abroad.The selected need of vertical seam type fish channel Layout consider topographic and geologic condition, fish pass entrance location and wear the factors such as dam point height, except minority fish pass, the import of most of fish pass engineering is all positioned under dam, wearing dam point height again can not be too low, therefore, fish pass engineering is often difficult to be arranged as linear pattern, need to be arranged as reentrant type according to landform geological conditions.The place of turning back can not simply must carry out half-turn by fish pass, must carry out water flow structure research according to the habit of fish, feature, avoids fish chaotic at the place of turning back, even dead, causes whole piece fish pass can not cross fish.
Summary of the invention
In order to overcome the problem of prior art, the utility model proposes a kind of vertical seam type fish channel that half-turn section is set.Described fish pass, by the behavioral study to fish, by various facilities, has carried out meticulous arrangement to the water flow structure in fish pass, makes fish be smoothly through safely fish pass.
The purpose of this utility model is achieved in that a kind of vertical seam type fish channel that half-turn section is set, comprise by the pond of the multiple bottom angled straight section that is formed by connecting, between each described pond by being arranged on the dividing plate of left bank or right bank and being arranged on right bank or the left bank straight section guide plate that stagger relative to dividing plate separates, in described pond, insert the half-turn section that fish pass is turned back, the interior wall that described half-turn section comprises semicircular exterior wall and upstream and downstream pond is separated, a setting of turning back of described interior wall is parallel with upstream dividing plate, length is less than the deflector of upstream dividing plate, described inner side of outer wall is uniform two turnaround section guide plates along the circumferential direction.
Further, the described dividing plate of cutting apart pond and guide plate are in the upstream and downstream of half-turn section, and left and right banks is staggered.
Further, described dividing plate and the guide plate of cutting apart pond and half-turn section and the distance of turning back are a little 1.15 ~ 1.35 times of pond width, and the exterior wall radius of curvature of half-turn section equates with pond width.
Further, described deflector length is 0.4 ~ 0.6 times of pond width.
Further, the pier nose of described deflector is semicircle.
Further, the length of described turnaround section guide plate is 0.25 ~ 0.30 times of pond width.
Further, the pier nose of described turnaround section guide plate is semi-circular.
Further, the pier nose of described dividing plate is herringbone pier nose, and the back side gradient of described herringbone pier nose is 1:1, and the upstream face gradient is 1:3.
Further, the pier nose of described straight section guide plate is herringbone pier nose, and the upstream face gradient of described herringbone pier nose is 1:1, and the back side gradient is 1:3.
The beneficial effect that the utility model produces is: the utility model, by being provided with the vertical seam type fish channel of half-turn section, makes full use of the space of site condition, saving fish pass.Owing to having adopted deflector and turnaround section guide plate, significantly improve the water flow structure of turnaround section, realize the smooth-going turning of vertical seam type fish channel.Described half-turn section, for fish provide openr resting space and good water environment, has the effect in rest pond, is conducive to fish and traces back in process and regain one's strength, and continues it and traces back stroke.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation of fish pass described in embodiment mono-, two of the present utility model;
Fig. 2 is the fluidised form schematic diagram of fish pass described in embodiment mono-of the present utility model, is the enlarged drawing that in Fig. 1, A is ordered;
Fig. 3 is the structural representation in fish pass described in embodiment tri-, four, five, six of the present utility model;
Fig. 4 is chevron shaped pier nose structural representation described in embodiment eight, nine of the present utility model.
Detailed description of the invention
Embodiment mono-:
The present embodiment is a kind of vertical seam type fish channel that half-turn section is set, as shown in Figure 1, 2.The present embodiment comprises the straight section being formed by connecting by the pond 1 of multiple bottom angled, between each described pond by being arranged on the dividing plate 2 of left bank or right bank and being arranged on right bank or the left bank straight section guide plate 3 that stagger relative to dividing plate separates, in described pond, insert the half-turn section 7 that fish pass is turned back, described half-turn section comprises semicircular exterior wall 5 and the interior wall 6 that upstream and downstream pond is separated, a little 4 settings of turning back of described interior wall are parallel with upstream dividing plate, length is less than the deflector 8 of upstream dividing plate, described inner side of outer wall is uniform two turnaround section guide plates 9 along the circumferential direction.
The present embodiment is taked a kind of mode of repeatedly turning through 180 degree, fish pass is raise layer by layer, be similar to stair, basin bottom in straight section tilts, and the bottom of the section of turning through 180 degree can be designed as level, so just can make fish going upstream gradually in constantly turning, in the process of stream of constantly tracing back, can also necessarily be had a rest at the place of turning back, be similar to while going upstairs and on half space, have a rest equally, as shown in Figure 1, what in figure, arrow B, C represented is the direction that current entered and flowed out fish pass, and the direction of fish swimming is just contrary in this.
The basic principle of the present embodiment is: fish are traced back and enter after half-turn section from pond, continue to move about along main flow area, owing to being provided with deflector and turnaround section guide plate, make roughly (the represented streamline of heavy line with arrow in Fig. 2) placed in the middle of main flow area 10, avoid main flow adherent mobile, thereby realized the steady trun that fish are traced back.Because the length of half-turn section has increased more than 2 times compared with the length in pond, main flow area flow rate attenuation is more remarkable, in the 11(Fig. 2 of recirculating zone, both sides with the represented streamline of arrow fine line) larger compared with pond geometric scale, recirculating zone flow velocity weakens, fish can enter recirculating zone from main flow area more at leisure and have a rest, and therefore half-turn section also has the effect in rest pond concurrently.The semicircle pier nose build that deflector and turnaround section guide plate can adopt, has reduced the injury risk possible to fish.
All parameters that the present embodiment adopts are all optimized gained through numerical simulation calculation and experimental study, and pass through fish test, have verified reasonability and the superiority of flow-shape.
For making main flow convergence centre position in turnaround section, the dislocation before and after turning of the perps of described fish pass, by the position left-right reversed of perps, to realize the smooth-going turning of fish and well to have a rest.
The pier nose shape of dividing plate, deflector, straight section guide plate and turnaround section guide plate and length need meticulous design, just can reach good effect, the perps particularly forming between dividing plate and straight section guide plate, has very important impact to crossing fish, because paying particular attention to the assurance of size.
Embodiment bis-:
The present embodiment is the improvement of embodiment mono-, is the refinement of embodiment mono-about dividing plate and guide plate position.The dividing plate of cutting apart pond described in the present embodiment and guide plate are in the upstream and downstream of half-turn section, and left and right banks is staggered, as shown in Figure 1.
The position of slit is to be determined by the length of dividing plate and straight section guide plate, and straight section guide plate in the determining positions of left and right banks perps be near left bank or near right bank, for example: straight section guide plate is in left bank, slit is near left bank, otherwise straight section guide plate is at right bank, perps is near right bank.
Due to the habit of fish swarming, the present embodiment is adjusted the position of perps in the front and back of half-turn section, and slit is changed in the position of left and right banks.Specific practice is: if perps is near left bank before half-turn section, after half-turn section, perps is adjusted to right bank; Otherwise if before half-turn section, perps, at right bank, is adjusted to left bank by perps after half-turn section.
The benefit of adjusting is like this: perps is adjusted before and after half-turn section, more be conducive to main flow and occupy centre position, there will not be larger-size backflow, water flow structure is more reasonable, be conducive to the smooth-going turning of straddling fish stocks, simultaneously for fish provide good Rest space.
Embodiment tri-:
The present embodiment is the improvement of above-described embodiment, is that above-described embodiment is about the refinement of half-turn section.In order to make current effect of energy dissipation obvious, the dividing plate of cutting apart pond and half-turn section described in the present embodiment and the distance L of turning back a little
1for 1.15 ~ 1.35 times of pond width D, the exterior wall radius of curvature R of half-turn section equates with pond width B, as shown in Figure 3.
The present embodiment is the refinement about length and the shape of half-turn section.The complete length of half-turn section is should be the dividing plate in pond, upstream and the straight section guide plate straight section guide plate dividing plate distance to pond, downstream, comprising semicircular turning.The radius of curvature that the present embodiment is turned semicircle equates with the width in pond, with ensure whole fish pass in half-turn section without any resistance, and the fish that give migration are in the chance of half-turn section rest.Be a semicircle for the ease of the half-turn section described in the smooth-going turning the present embodiment of main flow, described semicircle is exactly 1/2 circle.
Embodiment tetra-:
The present embodiment is the improvement of above-described embodiment, is the refinement of above-described embodiment about deflector length.Deflector length P described in the present embodiment
1for 0.4 ~ 0.6 times of pond width D, as shown in Figure 3.
In half-turn section, deflector is set, flows for fear of main flow is adherent, impel main flow placed in the middle, backflow size is relatively little, and water flow structure is more reasonable.But deflector is unsuitable long or too short, the long fish space that reduced, too shortly can not play the main flow effect of adjusting, as shown in Figure 2.
Embodiment five
The present embodiment is the improvement of above-described embodiment, is the refinement of above-described embodiment about deflector, as shown in Figure 3.The pier nose of the deflector described in the present embodiment is semicircle.
Described semicircle is exactly 1/2 circle.The semicircular pier nose of deflector is conducive to flowing of current, can reduce the delay of foreign material simultaneously, and reduces the risk to crossing fish injury.
Embodiment six:
The present embodiment is the improvement of above-described embodiment, is the refinement of above-described embodiment about turnaround section guide plate.The length P of the turnaround section guide plate described in the present embodiment is 0.25 ~ 0.30 times of pond width D, as shown in Figure 3.
The effect of turnaround section guide plate is to prevent that main flow current from flowing along external wall, impels main flow to occupy mid portion, and the backflow Sizes of main flow both sides simultaneously facilitates fish to turn and have a rest.If the length of turnaround section guide plate is long, will make main flow too near turning back a little, cause the fish space of crossing of whole turnaround section to reduce.Contrary, if the length of turnaround section guide plate is too short, cannot reach the effect of adjusting main flow.
Embodiment seven:
The present embodiment is the improvement of above-described embodiment, is the refinement of above-described embodiment about turnaround section guide plate.The pier nose of the turnaround section guide plate described in the present embodiment is semi-circular, as shown in Figure 3.
Embodiment eight:
The improvement of the present embodiment above-described embodiment is the refinement of above-described embodiment about dividing plate pier nose.The pier nose of the present embodiment dividing plate is herringbone pier nose, and the back side gradient of described herringbone pier nose is 1:1, and the upstream face gradient is 1:3, as shown in Figure 4.
Arrow in Fig. 4 represents water (flow) direction, the fore-and-aft distance a between dividing plate pier nose back side end points and summit
5, the fore-and-aft distance a between dividing plate pier nose summit and upstream face end points
6, the lateral separation a between dividing plate pier nose back side end points and summit
7, the lateral separation a between dividing plate pier nose upstream face end points and summit
8so, have: a
5: a
7=1:1, a
8: a
6=1:3.
Embodiment nine:
The present embodiment is the improvement of above-described embodiment, is the refinement of above-described embodiment about straight section guide plate.The pier nose of the straight section guide plate described in the present embodiment is herringbone pier nose, and the upstream face gradient of described herringbone pier nose is 1:1, and the back side gradient is 1:3, as shown in Figure 4.
According to water (flow) direction (direction of arrow in Fig. 4), the fore-and-aft distance a between straight section guide plate pier nose upstream face end points and summit
1, the fore-and-aft distance a between straight section guide plate pier nose summit and back side end points
2, the lateral separation a between straight section guide plate pier nose upstream face end points and summit
3, the lateral separation a between pier nose back side end points and summit
4.So have: a
1: a
3=1:1, a
4: a
2=1:3.
The fish pass design example carrying out according to the fish pass described in above-described embodiment:
As shown in Fig. 1,3,4, pond length
lfor 2.5m, width D is 2.0m.The length P of straight section guide plate
1for 0.5m, width b
1for 0.2m.Cross the length of fish perps
lfor 0.1m, width b is 0.3m, guide angle
αit is 45 °.The straight section guide plate pier nose upstream face gradient
a 3 :
a 1 for 1:1, back side gradient a
4: a
2for 1:3.Dividing plate pier nose upstream face gradient a
8: a
6for 1:3, back side gradient a
7: a
5for 1:1.The deflector of half-turn section on turning back is a little apart from the distance L of upstream dividing plate or downstream straight section guide plate
1for 2.5m, turning radius R is 2.5m, and width D is 2.0m.Deflector is arranged on interior wall turning point place, its length P
1for 1.0m.Turnaround section guide plate arranges turning semicircle 1/4 place and 3/4 place of exterior wall (5), its length P
2for 0.5m.The pier nose of deflector, turnaround section guide plate all adopts 1/2 circular arc type.The base slope in pond is 0.02, and half-turn section adopts step to arrange.
Compared with prior art, build is more succinct for the chevron shaped pier nose of described dividing plate, for fish swimming and the flow field structure of having a rest and providing more comfortable, has reduced the injury risk that artificial structure causes fish.Also have simultaneously and avoid floating thing to be detained and the effect that alleviates Sediment Siltation.
Finally it should be noted that, below only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred arrangement scheme, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model (such as crossing the shape etc. of form, dividing plate and deflector of form, turnaround section exterior wall of fish perps), and not depart from the spirit and scope of technical solutions of the utility model.
Claims (9)
1. one kind arranges the vertical seam type fish channel of half-turn section, comprise: the straight section being formed by connecting by the pond of multiple bottom angled, between each described pond by being arranged on the dividing plate of left bank or right bank and being arranged on right bank or the left bank straight section guide plate that stagger relative to dividing plate separates, it is characterized in that, in described pond, insert the half-turn section that fish pass is turned back, the interior wall that described half-turn section comprises semicircular exterior wall and upstream and downstream pond is separated, a setting of turning back of described interior wall is parallel with upstream dividing plate, length is less than the deflector of upstream dividing plate, described inner side of outer wall is uniform two turnaround section guide plates along the circumferential direction.
2. fish pass according to claim 1, is characterized in that, the described dividing plate of cutting apart pond and guide plate are in the upstream and downstream of half-turn section, and left and right banks is staggered.
3. fish pass according to claim 1 and 2, it is characterized in that, described dividing plate and the guide plate of cutting apart pond and half-turn section and the distance of turning back are a little 1.15-1.35 times of pond width, and the exterior wall radius of curvature of half-turn section equates with pond width.
4. fish pass according to claim 3, is characterized in that, described deflector length is 0.4-0.6 times of pond width.
5. fish pass according to claim 4, is characterized in that, the pier nose of described deflector is semicircle.
6. fish pass according to claim 3, is characterized in that, the length of described turnaround section guide plate is 0.25 times of pond width.
7. fish pass according to claim 6, is characterized in that, the pier nose of described turnaround section guide plate is semi-circular.
8. fish pass according to claim 2, is characterized in that, the pier nose of described dividing plate is herringbone pier nose, and the back side gradient of described herringbone pier nose is 1:1, and the upstream face gradient is 1:3.
9. fish pass according to claim 2, is characterized in that, the pier nose of described straight section guide plate is herringbone pier nose, and the upstream face gradient of described herringbone pier nose is 1:1, and the back side gradient is 1:3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132777.9U CN203904942U (en) | 2014-03-24 | 2014-03-24 | Vertical slot fishway provided with 180-degree curve sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132777.9U CN203904942U (en) | 2014-03-24 | 2014-03-24 | Vertical slot fishway provided with 180-degree curve sections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203904942U true CN203904942U (en) | 2014-10-29 |
Family
ID=51779232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420132777.9U Withdrawn - After Issue CN203904942U (en) | 2014-03-24 | 2014-03-24 | Vertical slot fishway provided with 180-degree curve sections |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203904942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835272A (en) * | 2014-03-24 | 2014-06-04 | 中国水利水电科学研究院 | Vertical seam type fishway with 180-degree turning sections |
-
2014
- 2014-03-24 CN CN201420132777.9U patent/CN203904942U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835272A (en) * | 2014-03-24 | 2014-06-04 | 中国水利水电科学研究院 | Vertical seam type fishway with 180-degree turning sections |
| CN103835272B (en) * | 2014-03-24 | 2015-06-03 | 中国水利水电科学研究院 | Vertical seam type fishway with 180-degree turning sections |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20150603 |
|
| RGAV | Abandon patent right to avoid regrant |