CN214737872U - Fishway inlet structure for supplementing water by using original river water flow - Google Patents
Fishway inlet structure for supplementing water by using original river water flow Download PDFInfo
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- CN214737872U CN214737872U CN202120514185.3U CN202120514185U CN214737872U CN 214737872 U CN214737872 U CN 214737872U CN 202120514185 U CN202120514185 U CN 202120514185U CN 214737872 U CN214737872 U CN 214737872U
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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
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Abstract
The utility model relates to an utilize fishway import structure of former river course rivers moisturizing. The utility model aims at providing an utilize fishway import structure of former river course rivers moisturizing. The technical scheme of the utility model is that: the utility model provides an utilize fishway import structure of former river course rivers moisturizing, includes fishway canal body structure, its characterized in that: the river course in fishway canal body structure low reaches end outside is formed with the moisturizing canal that can increase the rivers velocity of flow in it and converges the canal, and wherein converge the canal low reaches end and be into the fish mouth, converge the canal upper reaches end and link up the low reaches end of fishway canal body structure and moisturizing canal, moisturizing canal low reaches end is equipped with blocks the fish grid. The water replenishing channel is of a horn-shaped structure with wide upstream and narrow downstream; the confluence channel is of a horn-shaped structure with a wide upstream and a narrow downstream. The utility model is suitable for a be applicable to hydraulic and hydroelectric engineering field.
Description
Technical Field
The utility model relates to an utilize fishway import structure of former river course rivers moisturizing. Is suitable for the field of water conservancy and hydropower engineering.
Background
The water conservancy and hydropower engineering often carries out the separation to former river, generally adopts the mode of setting up the fishway and sets up special moisturizing measure for the convenience of fish migration to make fish perception be higher than the fishway import rivers of river course velocity of flow and get into the fishway smoothly. The water replenishing measures generally adopted are that water pipes are laid on side walls of the fishway to conduct water replenishing, water pumps are often needed to pump water or water is directly led from the upstream when the water pipes are laid for water replenishing, water resources which can be used for benefits such as power generation are wasted, and project investment and later-period operation cost are increased.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: aiming at the problems existing in the prior art, the fishway inlet structure utilizing the original riverway water flow for supplementing water is provided.
The utility model adopts the technical proposal that: the utility model provides an utilize fishway import structure of former river course rivers moisturizing, includes fishway canal body structure, its characterized in that: the river course in fishway canal body structure low reaches end outside is formed with the moisturizing canal that can increase the rivers velocity of flow in it and converges the canal, and wherein converge the canal low reaches end and be into the fish mouth, converge the canal upper reaches end and link up the low reaches end of fishway canal body structure and moisturizing canal, moisturizing canal low reaches end is equipped with blocks the fish grid.
The water replenishing channel is of a horn-shaped structure with wide upstream and narrow downstream; the confluence channel is of a horn-shaped structure with a wide upstream and a narrow downstream.
The width of the downstream end of the water replenishing channel is larger than that of the downstream end of the confluence channel.
The bottom plate slope of converging the ditch is greater than the bottom plate slope of moisturizing the ditch.
A water guide structure is arranged in a river channel on the outer side of the downstream end of the fishway canal body structure, a water replenishing canal is formed between the water guide structure and the outer side wall of the fishway canal body structure, and a converging canal is formed between the water guide structure and the inner side wall of the fishway canal body structure.
The confluence channel axis and the fishway channel structure axis form an included angle larger than 0 degree and smaller than 90 degrees.
The utility model has the advantages that: the utility model discloses a set up the water guide structure in the river course to form the moisturizing canal and converge the canal in the river course in the fishway canal body structure low reaches end outside, water in the river course partly flows into the moisturizing canal when following upper reaches flow direction low reaches, gets into after the moisturizing canal increase velocity of flow and converges the canal and get into the river course after converging the canal increase velocity of flow again with the water that the fishway canal flowed in, the fish perception of being convenient for is higher than the entering fish tape outlet rivers and the smooth entering fishway of the river course velocity of flow.
The utility model discloses simple structure, construction convenience, cost are lower, utilize former river course rivers to carry out the moisturizing to the fishway, save the fishway and quote the flow, the later stage operation maintenance of being convenient for.
Drawings
Fig. 1 is a schematic plan view of the embodiment.
Fig. 2 is a sectional view a-a of fig. 1.
1. A fishway canal body structure; 1-1, inner side wall; 1-2, outer side wall; 2. a water guide structure; 3. a water replenishing channel; 4. a confluence channel; 5. a fish blocking grid; 6. a bottom plate of the water replenishing channel; 7. a manifold channel bottom plate.
Detailed Description
The embodiment is an utilize fishway import structure of former river course rivers moisturizing, including setting up fishway canal body structure on river course one side bank slope, be equipped with the water guide structure in the river course in the fishway canal body structure low reaches end outside, form the moisturizing canal that is located the river course between the lateral wall of fishway canal body structure and the water guide structure, fishway canal body structure's inside wall extends downstream and forms the canal that converges that is located the river course between inside wall extension section and the water guide structure.
In this embodiment, the downstream end of the converging channel is communicated with the river channel and is a fish inlet, the upstream end of the converging channel is connected with the downstream end of the fishway channel and the downstream end of the water replenishing channel in the fishway channel body structure, and the included angle between the axis of the converging channel and the axis of the fishway channel body structure is more than 0 degree and less than 90 degrees. The upstream end of the water replenishing channel is communicated with the river channel, and the downstream end of the water replenishing channel is connected with the confluence channel and is provided with a fish blocking grid.
In the embodiment, the water replenishing channel is in a horn-shaped structure with wide upstream and narrow downstream; the confluence channel is of a horn-shaped structure with wide upstream and narrow downstream, and the width of the downstream end of the water supplementing channel is larger than that of the downstream end of the confluence channel, so that the water supplementing channel and the confluence channel have the functions of narrowing water flow and increasing flow rate.
In this embodiment, the bottom plate of the replenishing channel and the bottom plate of the converging channel are inclined downward slopes from upstream to downstream, and the slope of the bottom plate of the converging channel is greater than the slope of the bottom plate of the replenishing channel and the slope of the bottom plate of the fishway channel, so as to increase the flow rate.
In this embodiment, the slope and the narrowing degree of the bottom plates of the replenishing channel and the confluent channel are determined according to the requirement of the fish species on the flow rate, and the minimum width is determined according to the species and the size of the fish passing object.
In this example, the fish-blocking grating adopts a metal transverse and vertical cross net structure, and also can adopt a reinforced concrete transverse and vertical cross net structure, and the mesh size is determined according to the fish-passing body size, and is generally 5cm multiplied by 5 cm.
The construction method of the embodiment comprises the following steps: the fishway inlet structure is selected to be constructed in dry land in the dry water period, and if the dry land construction cannot be guaranteed in the dry water period, cofferdam water retaining or pile foundation arrangement can be carried out; the fishway inlet structure is made of concrete or stone-building materials; the fish-blocking grating is made of metal materials or reinforced concrete materials.
The working principle of the embodiment is as follows: the water in the river course partly flows into the water replenishing channel when flowing to the low reaches from the upper reaches, and rivers increase the velocity of flow through the water replenishing channel when flowing to the low reaches from the upper reaches in the water replenishing channel, and the rivers that increase the velocity of flow through the water replenishing channel get into the flow converging channel and join with the water that the fishway channel flows in, and the rivers after the confluence channel increase the velocity of flow and then get into the river course from the fish inlet. The fish perception is higher than the fish inlet rivers of river course velocity of flow to can follow the fish inlet and get into the canal that converges, the fish that gets into the canal that converges upward, because the moisturizing canal low reaches end is equipped with blocks fish grid, fish can only swim to the fishway canal in, and follow the fishway canal trip upstream.
Claims (6)
1. The utility model provides an utilize fishway import structure of former river course rivers moisturizing, includes fishway canal body structure, its characterized in that: the river course in fishway canal body structure low reaches end outside is formed with the moisturizing canal that can increase the rivers velocity of flow in it and converges the canal, and wherein converge the canal low reaches end and be into the fish mouth, converge the canal upper reaches end and link up the low reaches end of fishway canal body structure and moisturizing canal, moisturizing canal low reaches end is equipped with blocks the fish grid.
2. The fishway inlet structure for supplementing water by using the water flow of the original riverway as claimed in claim 1, characterized in that: the water replenishing channel is of a horn-shaped structure with wide upstream and narrow downstream; the confluence channel is of a horn-shaped structure with a wide upstream and a narrow downstream.
3. The fishway inlet structure for supplementing water by using the water flow of the original riverway as claimed in claim 2, characterized in that: the width of the downstream end of the water replenishing channel is larger than that of the downstream end of the confluence channel.
4. The fishway inlet structure using the original riverway water flow for supplementing water according to claim 1, 2 or 3, characterized in that: the bottom plate slope of converging the ditch is greater than the bottom plate slope of moisturizing the ditch.
5. The fishway inlet structure for supplementing water by using the water flow of the original riverway as claimed in claim 1, characterized in that: a water guide structure is arranged in a river channel on the outer side of the downstream end of the fishway canal body structure, a water replenishing canal is formed between the water guide structure and the outer side wall of the fishway canal body structure, and a converging canal is formed between the water guide structure and the inner side wall of the fishway canal body structure.
6. The fishway inlet structure for supplementing water by using the water flow of the original riverway as claimed in claim 1 or 5, wherein: the confluence channel axis and the fishway channel structure axis form an included angle larger than 0 degree and smaller than 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120514185.3U CN214737872U (en) | 2021-03-11 | 2021-03-11 | Fishway inlet structure for supplementing water by using original river water flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120514185.3U CN214737872U (en) | 2021-03-11 | 2021-03-11 | Fishway inlet structure for supplementing water by using original river water flow |
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| Publication Number | Publication Date |
|---|---|
| CN214737872U true CN214737872U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120514185.3U Active CN214737872U (en) | 2021-03-11 | 2021-03-11 | Fishway inlet structure for supplementing water by using original river water flow |
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| CN (1) | CN214737872U (en) |
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2021
- 2021-03-11 CN CN202120514185.3U patent/CN214737872U/en active Active
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