CN202745020U - Water-pervious fish pass used for migration fish dam-passing protection - Google Patents
Water-pervious fish pass used for migration fish dam-passing protection Download PDFInfo
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- CN202745020U CN202745020U CN2012203689629U CN201220368962U CN202745020U CN 202745020 U CN202745020 U CN 202745020U CN 2012203689629 U CN2012203689629 U CN 2012203689629U CN 201220368962 U CN201220368962 U CN 201220368962U CN 202745020 U CN202745020 U CN 202745020U
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- dividing plate
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- pond
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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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Abstract
The utility model belongs to the technical field of migration fish dam-passing protection, and provides a water-pervious fish pass suitable for large water head difference and a steep slope. The water-pervious fish pass comprises a fish pass pond chamber, a plurality of partition boards arranged on one inner side wall of the fish pass pond chamber, and a plurality of guide vertical walls arranged on the other side wall of the fish pass pond chamber, wherein the plurality of partition boards are spaced at intervals, the guide vertical walls and the partition boards are arranged in a staggered mode, fish passing holes or seams are formed between the corresponding guide vertical walls and the partition boards, water-pervious holes or seams are arranged in the partition boards, and water is pervious in the water-pervious holes or seams but fishes cannot pass through the water-pervious holes or seams. According to the water-pervious fish pass, energy dissipation effects are improved by 10%-20% than those of traditional partition boards, the problem that the fish pass cannot adapt to the large water head difference, the steep slope and poor water current conditions is solved, the gradient of a base slope of the fish pass is therefore improved, the length of the fish pass is reduced, and engineering investment is reduced.
Description
Technical field
The utility model belongs to migration fishes and crosses resist technology field, dam, relates to a kind of fish pass, a kind ofly specifically is applicable to the dankness type fish pass that migration fishes cross the dam protection that is used for that head difference is large, the gradient is steeper.
Background technology
Fish pass is provided in a side of the passage that migration aquatic organism energy adverse current or following current are passed through in the rivers fixed buildings (such as dam).Fish pass is divided into ecosystem formula fish pass, slot type fish pass, special construction pattern fish pass, pond cell-type fish pass (claiming again the iris type fish pass) by its structural shape at present.Ecosystem formula fish pass is very near the situation of natural river course, and main prolongation flow path and the increase roughness of relying on comes energy dissipating, is particularly suitable for the lower hinge of low weir or head and adopts; The slot type fish pass mainly passes through at cell wall and very close all kinds of baffle-walls and the whetstone bank of bottom land arrangement pitch, and the dissipation energy lowers flow velocity, and its advantage is that size is little, and the gradient is steep, and it is very fast to cross fish speed, but the type fish pass flow turbulence is violent, and applicable head difference is little; Special construction pattern fish pass has unique structural shape, usually only traces back for those aquatic organisms (such as elver, young crab etc.) that can creep, can adhere to, be good at passing through the thick grass slit and establishes; Pond cell-type fish pass utilizes dividing plate water cushion, opposite jet flow, diffusion and friction drag to come energy dissipating, creation is suitable for the fluidised form that fish are traced back, its advantage is that flow condition is controlled easily, simple in structure, easy to maintenance, can adapt to relatively high head, therefore be to use at present maximum fish pass patterns both at home and abroad.
Shape, position and mechanism of energy dissipation that pond cell-type fish pass is pressed the dividing plate fish pass are different, can be divided into the overflow weir formula, flood outlet type, four kinds of vertical seam type and combined types.Wherein the vertical seam type effect of energy dissipation is more abundant, and external this form adopts more, but its fluidised form is complicated.
Therefore, how to improve fish pass dividing plate pattern, make that fish pass adapts to larger head difference, more steep gradient has again better flow condition, become the problem that design and scientific research and testing personnel pay special attention to.
The utility model content
Technical problem to be solved in the utility model is; overcome the shortcoming of prior art; a kind of dankness type fish pass of crossing the dam protection for migration fishes is provided; can improve the effect of energy dissipation of fish pass dividing plate; can make fish pass adapt to larger head difference and than steep gradient; then shorten fish pass length together, reduce construction cost.
The technical scheme that the utility model solves above technical problem is:
A kind of dankness type fish pass of crossing the dam protection for migration fishes; comprise chamber, fish pass pond; also comprise the polylith dividing plate that is arranged on the indoor sidewall in fish pass pond; keep at a certain distance away between each piece dividing plate; be arranged on the polylith water conservancy diversion straight wall on the indoor sidewall in fish pass pond; keep at a certain distance away between each piece water conservancy diversion straight wall; every water conservancy diversion straight wall all is adjacent a dividing plate and is group to arranging; form fish pass between each piece water conservancy diversion straight wall and its paired dividing plate; dividing plate is provided with permeable perforation or seam; permeable perforation or seam can be permeable, but can not pass through fish.
Water body part current from chamber, higher level's fish pass pond enter chamber, subordinate fish pass pond by fish pass contraction and diffusion dissipation; Another part current enter chamber, subordinate fish pass pond by the permeable perforation on the dividing plate or after stitching energy dissipating; Current by fish pass and permeable perforation or seam are indoor mutual colliding energy dissipation in the fish pass pond; Migration fishes can only pass through the fish pass up-downgoing, can not or sew on descending by tiny permeable perforation on the dividing plate.
Like this, the utility model has increased dankness type dividing plate dissipating functions at traditional tank formula fish pass dividing plate by Energy Dissipation Modes bases such as perps, apertures, adopt can make behind the utility model fish pass adapt to larger head difference, than steep gradient, then shorten fish pass length, reduce investment.
The technical scheme that the utility model further limits is:
Aforesaidly cross the dankness type fish pass of dam protection for migration fishes, dividing plate is individual layer, bilayer or two-layer above structure.
Aforesaidly cross the dankness type fish pass of dam protection for migration fishes, dividing plate is double-decker, has clearance space between the two-layer dividing plate; two-layer dividing plate one end connects; the other end is fixed on one inside wall of chamber, described fish pass pond, forms three-back-shaped structure, all is provided with permeable perforation or seam on the two-layer dividing plate.
In a cavity, enter chamber, next stage pond through second layer porous disc again after the local diffusion behind the first floor porous disc on the current process dividing plate of chamber, a upper pond, all be furnished with permeable hole or seam on the porous disc of dividing plate two sides, the going out stream and can in the dividing plate cavity, produce rotary roll of the permeable permeable hole of upstream face first floor or seam, dissipation part flow energy, by two-layer porous disc, the dividing plate effect of energy dissipation is more excellent.
The aforesaid dankness type fish pass of crossing the dam protection for migration fishes; dividing plate is two-layer above structure; has clearance space between the adjacent two layers dividing plate; each layer dividing plate one end connects; the other end is fixed on one inside wall of chamber, described fish pass pond; the adjacent two layers dividing plate forms three-back-shaped structure, all is provided with permeable perforation or seam on each layer dividing plate.
Aforesaidly cross the dankness type fish pass of dam protection for migration fishes, the dividing plate interlaced arrangement is at inside wall and the inside wall of chamber, pond, and the water conservancy diversion straight wall is arranged in dividing plate offside inside wall, and the water conservancy diversion straight wall is distributed between two adjacent dividing plates.
Aforesaidly cross the dankness type fish pass of dam protection for migration fishes, baffle arrangement is on an inside wall of chamber, fish pass pond, and the water conservancy diversion straight wall is arranged on another inside wall of chamber, fish pass pond, and each water conservancy diversion straight wall and each piece dividing plate shift to install.
Aforesaidly cross the dankness type fish pass of dam protection for migration fishes, permeable perforation or be sewn on dividing plate and be array or irregular random arrangement.
The beneficial effects of the utility model are:
⑴ the permeable dividing plate that arrange in chamber, fish pass pond becomes many steps with the gross head difference of upstream and downstream, utilize the method such as liquidate mutually between the contraction, diffusion of current and hole seam current and permeable dividing plate current to come energy dissipating, current effect of energy dissipation between upper lower storage reservoir chamber is abundant, the indoor flow-shape in pond is more suitable for tracing back in fish, and it is better that fish pass is crossed the fish effect;
⑵ with respect to chamber, conventional baffle pond, and chamber, pond of the present utility model does not have excessive and violent whirlpool, and the better (see figure 6) of flow condition more is conducive to the upwards preservation of straddling fish stocks muscle power;
⑶ dankness type dividing plate improves 10%～20% than the waterproof formula dividing plate of conventional version effect of energy dissipation, and therefore under the identical Peak Flow Rate of fish pass pond formula, the fish pass base slope can increase by 10～20%, reduces construction investment thereby can shorten fish pass length.
In the fish pass design, how to improve dividing plate energy dissipating efficient is a difficult problem always, its direct relation has been the investment of fish rate and engineering, the utility model not only can effectively increase the fish pass effect of energy dissipation, improves the fish pass base slope, reduces fish pass length, reduce construction investment, and the indoor flow condition in fish pass pond is better, and more favourable straddling fish stocks pass through, and has good application prospect.
Description of drawings
Fig. 1 is the structure schematic top plan view of the utility model embodiment 1.
Fig. 2 is the elevation of Fig. 1.
Fig. 3 is the structure schematic top plan view of the utility model embodiment 2
Fig. 4 is the structure schematic top plan view of the utility model embodiment 3
Fig. 5 is for adopting chamber, traditional fish pass pond current schematic diagram.
Fig. 6 is chamber, the utility model fish pass pond current schematic diagram.
The specific embodiment
Present embodiment is a kind of dankness type fish pass of crossing the dam protection for migration fishes; structure as depicted in figs. 1 and 2; comprise chamber, fish pass pond 1; be arranged on the polylith dividing plate 2 on 1 one inside walls 6 of chamber, fish pass pond; keep at a certain distance away between each piece dividing plate 2, be arranged on the polylith water conservancy diversion straight wall 3 on 1 another inside wall 7 of chamber, fish pass pond, each piece water conservancy diversion straight wall 3 shifts to install with dividing plate 2; form fish pass 4 between each corresponding piece water conservancy diversion straight wall 3 and the dividing plate 2, dividing plate 2 is provided with permeable perforation or stitches 5.Permeable perforation or stitch 5 and be arranged in array at dividing plate 2.Permeable perforation or stitch 5 can be permeable, but can not pass through fish.Dividing plate 2 parts are permeable or fully permeable.
Water body part current from chamber, higher level's fish pass pond enter chamber, subordinate fish pass pond by fish pass 4 contractions and diffusion dissipation; Another part current enter chamber, subordinate fish pass pond by the permeable perforation on the dividing plate 2 or after stitching 5 energy dissipatings; By fish pass 4 and permeable perforation or stitch 5 current in chamber, fish pass pond 1 interior mutual colliding energy dissipation; Migration fishes can only pass through fish pass 4 up-downgoings, can not or stitch 5 up-downgoings by tiny permeable perforation on the dividing plate 2.Present embodiment can be by the fish pass 4 of flowing through current and permeable perforation or stitch 5 opposite jet flow, and permeable perforation or stitch to liquidate between 5 current that flow out and reach the purpose that improves energy dissipating.Fig. 5 and Fig. 6 are respectively the current schematic diagram that adopts chamber, pond and chamber, the utility model pond, by seeing among the figure, the utility model dividing plate has improved crosses lymphogranuloma inguinale and chamber, pond flow condition, crossing the lymphogranuloma inguinale flow rate of water flow reduces, make fish needn't consume many-body force through out-of-date, thereby improved the excessively fish efficient of fish pass.
Present embodiment is a kind of dankness type fish pass of crossing the dam protection for migration fishes; structure as shown in Figure 3; comprise chamber, fish pass pond 1; be arranged on the polylith dividing plate 2 on 1 one inside walls 6 of chamber, fish pass pond; keep at a certain distance away between each piece dividing plate 2; be arranged on the polylith water conservancy diversion straight wall 3 on 1 another inside wall 7 of chamber, fish pass pond; each piece water conservancy diversion straight wall 3 shifts to install with dividing plate 2; form fish pass 4 between each corresponding piece water conservancy diversion straight wall 3 and the dividing plate 2; dividing plate 2 is double-decker; form double-deck permeable structure; have clearance space between the two-layer dividing plate, two-layer dividing plate one end connects, and the other end is fixed on 1 one inside walls of chamber, described fish pass pond; form three-back-shaped structure, all be provided with permeable perforation on the two-layer dividing plate or stitch 5.Permeable perforation or stitch 5 and be arranged in array at dividing plate 2.Dividing plate 2 parts are permeable or fully permeable.
In a cavity, enter chamber, next stage pond through second layer porous disc again after the local diffusion behind the first floor porous disc on chamber, the pond current process dividing plate 2 on the present embodiment, all be furnished with permeable perforation on the dividing plate 2 two sides porous discs or stitch the 5(elevation identical with Fig. 2).Embodiment 2 not only has the advantage with embodiment 1 phase, and the going out stream and can produce rotary roll in the dividing plate cavity of upstream face first floor permeable hole or seam, dissipation part flow energy, and also by two-layer porous disc, the dividing plate effect of energy dissipation is more excellent.
Present embodiment is a kind of dankness type fish pass of crossing the dam protection for migration fishes; present embodiment is to change on the basis of embodiment 1; structure as shown in Figure 4; the difference of present embodiment and embodiment 1 is; present embodiment is used for migration fishes and crosses dankness type fish pass dividing plate 2 interlaced arrangement of dam protection at inside wall 6 and the inside wall 7 of chamber, pond 1; water conservancy diversion straight wall 3 is arranged in dividing plate 2 offside inside walls; and water conservancy diversion straight wall 3 is distributed between two adjacent dividing plates 2, forms fish pass 4 between the dividing plate 2 that each water conservancy diversion straight wall 3 is adjacent.
Present embodiment is a kind of dankness type fish pass of crossing the dam protection for migration fishes; present embodiment is to change on the basis of embodiment 2; the difference of present embodiment and embodiment 2 is; the dividing plate 2 of present embodiment and water conservancy diversion straight wall 3 all are arranged on inside wall 6 or 7 of chamber, fish pass pond 1; each water conservancy diversion straight wall 3 is distributed between two adjacent dividing plates 2, forms fish pass 4 between the dividing plate 2 that each water conservancy diversion straight wall 3 is adjacent.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (7)
1. one kind is used for the dankness type fish pass that migration fishes cross the dam protection; comprise chamber, fish pass pond (1); it is characterized in that: also comprise the polylith dividing plate (2) that is arranged on the inside wall of chamber, fish pass pond (1); keep at a certain distance away between each piece dividing plate (2); be arranged on the polylith water conservancy diversion straight wall (3) on the inside wall of chamber, fish pass pond (1); keep at a certain distance away between each piece water conservancy diversion straight wall (3); every water conservancy diversion straight wall (3) all is adjacent a dividing plate (2) and is group to arranging; form fish pass (4) between each piece water conservancy diversion straight wall (3) and its paired dividing plate (2); described dividing plate (2) is provided with permeable perforation or seam (5); described permeable perforation or seam (5) can be permeable, but can not pass through fish.
2. as claimed in claim 1ly cross the dankness type fish pass of dam protection for migration fishes, it is characterized in that: described dividing plate (2) is individual layer, bilayer or two-layer above structure.
3. the dankness type fish pass of crossing dam protection for migration fishes as claimed in claim 2; it is characterized in that: described dividing plate (2) is double-decker; has clearance space between the two-layer dividing plate; two-layer dividing plate one end connects; the other end is fixed on (1) one inside wall of chamber, described fish pass pond; form three-back-shaped structure, all be provided with permeable perforation or seam (5) on the two-layer dividing plate.
4. the dankness type fish pass of crossing dam protection for migration fishes as claimed in claim 2; it is characterized in that: described dividing plate (2) is two-layer above structure; has clearance space between the adjacent two layers dividing plate; each layer dividing plate one end connects; the other end is fixed on (1) one inside wall of chamber, described fish pass pond; the adjacent two layers dividing plate forms three-back-shaped structure, all is provided with permeable perforation or seam (5) on each layer dividing plate.
5. such as the described dankness type fish pass of crossing the dam protection for migration fishes of arbitrary claim among the claim 1-4; it is characterized in that: described dividing plate (2) interlaced arrangement is at inside wall (6) and the inside wall (7) of chamber, pond (1); water conservancy diversion straight wall (3) is arranged in dividing plate (2) offside inside wall, and water conservancy diversion straight wall (3) is distributed between adjacent two dividing plates (2).
6. such as the described dankness type fish pass of crossing the dam protection for migration fishes of arbitrary claim among the claim 1-4; it is characterized in that: described dividing plate (2) is arranged on the inside wall (6) of Dao Chi chamber (1); described water conservancy diversion straight wall (3) is arranged on another inside wall (7) of Dao Chi chamber (1), and each water conservancy diversion straight wall (3) shifts to install with each piece dividing plate (2).
7. cross the dankness type fish pass of dam protection as arbitrary claim among the claim 1-4 is described for migration fishes, it is characterized in that: described permeable perforation or seam (5) are array or irregular random arrangement at dividing plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203689629U CN202745020U (en) | 2012-07-27 | 2012-07-27 | Water-pervious fish pass used for migration fish dam-passing protection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203689629U CN202745020U (en) | 2012-07-27 | 2012-07-27 | Water-pervious fish pass used for migration fish dam-passing protection |
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| CN202745020U true CN202745020U (en) | 2013-02-20 |
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| CN2012203689629U Expired - Lifetime CN202745020U (en) | 2012-07-27 | 2012-07-27 | Water-pervious fish pass used for migration fish dam-passing protection |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758423A (en) * | 2012-07-27 | 2012-10-31 | 水利部交通运输部国家能源局南京水利科学研究院 | Water-permeable fishway |
| CN103452077A (en) * | 2013-08-15 | 2013-12-18 | 四川大学 | Experimental device for attracting fish and replenishing water at fishway inlet of hydropower station |
| CN103953014A (en) * | 2014-04-29 | 2014-07-30 | 长江勘测规划设计研究有限责任公司 | Novel fishway structure |
| CN104404929A (en) * | 2014-11-18 | 2015-03-11 | 安徽理工大学 | Driving assistance type vertical-seam fishway structure and fish gathering method thereof |
| CN104762935A (en) * | 2015-03-18 | 2015-07-08 | 杭州金培科技有限公司 | Vertical shaft type fishway |
| CN106013010A (en) * | 2016-05-23 | 2016-10-12 | 三峡大学 | Concrete baffle for improving fish passing effect of culvert type fishway and application method of concrete baffle |
| CN106759167A (en) * | 2017-02-06 | 2017-05-31 | 长江水利委员会长江科学院 | A kind of imitative nature fish pass of narrow deep type for adapting to multiple target population |
| CN107245988A (en) * | 2017-07-22 | 2017-10-13 | 河北工程大学 | Many arcading plate ecological fishway dividing plates |
| CN108708357A (en) * | 2018-07-05 | 2018-10-26 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of fish pass partition board pattern being equipped with husky seam |
| CN109763464A (en) * | 2019-02-27 | 2019-05-17 | 福建省水利水电勘测设计研究院 | A kind of Ecology fish pass using natural pebble partition |
| CN110205994A (en) * | 2019-05-31 | 2019-09-06 | 西安理工大学 | A kind of weir body interlaced arrangement type fish pass |
| CN110656628A (en) * | 2019-11-06 | 2020-01-07 | 四川省交通勘察设计研究院有限公司 | Water-stone flow diversion type debris flow decelerating dam and clearing method thereof |
-
2012
- 2012-07-27 CN CN2012203689629U patent/CN202745020U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758423A (en) * | 2012-07-27 | 2012-10-31 | 水利部交通运输部国家能源局南京水利科学研究院 | Water-permeable fishway |
| CN103452077B (en) * | 2013-08-15 | 2015-08-05 | 四川大学 | Power station fish pass import attracting moisturizing experimental facilities |
| CN103452077A (en) * | 2013-08-15 | 2013-12-18 | 四川大学 | Experimental device for attracting fish and replenishing water at fishway inlet of hydropower station |
| CN103953014A (en) * | 2014-04-29 | 2014-07-30 | 长江勘测规划设计研究有限责任公司 | Novel fishway structure |
| CN104404929B (en) * | 2014-11-18 | 2016-03-23 | 安徽理工大学 | Help and drive formula perps fish channel structure and attracting fish method thereof |
| CN104404929A (en) * | 2014-11-18 | 2015-03-11 | 安徽理工大学 | Driving assistance type vertical-seam fishway structure and fish gathering method thereof |
| CN104762935A (en) * | 2015-03-18 | 2015-07-08 | 杭州金培科技有限公司 | Vertical shaft type fishway |
| CN106013010A (en) * | 2016-05-23 | 2016-10-12 | 三峡大学 | Concrete baffle for improving fish passing effect of culvert type fishway and application method of concrete baffle |
| CN106759167A (en) * | 2017-02-06 | 2017-05-31 | 长江水利委员会长江科学院 | A kind of imitative nature fish pass of narrow deep type for adapting to multiple target population |
| CN107245988A (en) * | 2017-07-22 | 2017-10-13 | 河北工程大学 | Many arcading plate ecological fishway dividing plates |
| CN108708357A (en) * | 2018-07-05 | 2018-10-26 | 水利部交通运输部国家能源局南京水利科学研究院 | A kind of fish pass partition board pattern being equipped with husky seam |
| CN109763464A (en) * | 2019-02-27 | 2019-05-17 | 福建省水利水电勘测设计研究院 | A kind of Ecology fish pass using natural pebble partition |
| CN109763464B (en) * | 2019-02-27 | 2023-11-03 | 福建省水利水电勘测设计研究院有限公司 | Bionic fishway adopting natural pebble partition board |
| CN110205994A (en) * | 2019-05-31 | 2019-09-06 | 西安理工大学 | A kind of weir body interlaced arrangement type fish pass |
| CN110656628A (en) * | 2019-11-06 | 2020-01-07 | 四川省交通勘察设计研究院有限公司 | Water-stone flow diversion type debris flow decelerating dam and clearing method thereof |
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Granted publication date: 20130220 |