CN211646291U - Combined water diversion device - Google Patents
Combined water diversion device Download PDFInfo
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- CN211646291U CN211646291U CN201921530984.9U CN201921530984U CN211646291U CN 211646291 U CN211646291 U CN 211646291U CN 201921530984 U CN201921530984 U CN 201921530984U CN 211646291 U CN211646291 U CN 211646291U
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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
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Abstract
The combined water diversion device comprises an inflow channel, a test channel and a drainage channel, wherein the inflow channel, the test channel and the drainage channel are smoothly communicated end to form a water through channel; the test channel is internally provided with a plurality of water through walls which are used for changing the water flow mode and are parallel to each other, the water through walls are vertically arranged in the test channel, the test channel is divided into a plurality of test subareas, the middle part or the bottom of each water through wall is provided with a through hole, the upper edge of each water through wall is provided with an overflow weir, and only one side edge of each water through wall is sunken inwards to form a strip-shaped seam; the rectangle notch that the top subsides makes on the wall edge form the notch weir to lead to the water wall, and the rectangle notch setting is kept away from the last edge of strip seam one end to with the strip seam part dislocation. The utility model discloses beneficial effect is: easy manufacture, convenient maintenance, economy and practicality, excellent hydraulic characteristics, and capability of generating a turbulent zone and a vortex zone required by fish migration.
Description
Technical Field
The utility model relates to a combined type water diversion device.
Background
In recent years, people build a large number of water conservancy facilities in rivers to make up for the defect of uneven space-time distribution of water resources in China. These artificial facilities destroy the connectivity of the original river, cause the fragmentation of the ecological environment of the river, block the migration channel of fish in the river, and cause the serious reduction of the biological diversity of the river. In order to communicate with a migration channel of fishes and maintain the diversity of organisms, a fishway is usually arranged in a hydro-junction so as to achieve the purpose of harmonious development of water resource development and ecological environment. The fish passing effect of the fishway and the hydraulic characteristics of the fishway pond chamber are related to the upstream habit of the fishes, and the fishes can be traced up along the passage gently instead of simply opening a passage for the fishes. Research data already shows that in fishways established around the world, the fishways through which fishes can swim back are less than half. Therefore, ecological hydraulic characteristic factors are considered in fishway design, and the method has important practical significance in restoring the ecological environment of the fish.
Disclosure of Invention
To the defect in the existing design, the utility model provides a flow characteristic and fish after the combination trace to the trip habit and the combination formula diversion device that designs according to overflow weir, drill way, perps.
Combined water diversion device, its characterized in that: the system comprises an inflow channel, a test channel and a drainage channel, wherein the inflow channel, the test channel and the drainage channel are smoothly communicated end to form a coaxial and mutually communicated water channel; the test channel is internally provided with a plurality of water through walls which are used for changing the water flow mode and are parallel to each other, the water through walls are vertically arranged in the test channel, the test channel is divided into a plurality of test subareas, the middle part or the bottom of each water through wall is provided with a through hole, the edge of each water through wall is provided with an overflow weir, and only one side edge of each water through wall is sunken inwards to form a strip-shaped seam; the rectangle notch that the top subsides makes on the wall edge form the notch weir wall that leads to water, and the rectangle notch setting is kept away from the last edge of strip seam one end to with the strip seam part dislocation.
The water flow passing through the water passing walls is divided into two flow modes of straight line or staggered flow according to the water flow form passing through the strip-shaped seams, wherein the straight line means that orthographic projections of the strip-shaped seams on a plane parallel to the water passing walls are superposed with each other, so that the water flow passing through the strip-shaped seams is linear water flow, and the staggered flow means that orthographic projections of the strip-shaped seams of two adjacent water passing walls on the plane parallel to the water passing walls are symmetrical about the vertical central axis of the water passing walls, so that the water flow passing through the strip-shaped seams is curved water flow.
The water through wall is vertically arranged on the inner side wall of the water through channel and keeps the water through wall vertical to the water through channel bottom plate of the water through channel.
The bottom plate of the water channel clamped between the water through wall at the most upstream and the water through wall at the most downstream is a stepped bottom plate, the height of the step of the stepped bottom plate is gradually reduced along the water flow direction, and the joint of two adjacent steps is vertically provided with one water through wall.
The opening is a rectangular hole or an oval hole.
The opening is the rectangular hole, and the long limit of rectangular hole is perpendicular with the logical canal bottom plate that corresponds experimental area to the aspect ratio of rectangular hole is 3: 2.
the opening is oval hole, and the upper portion in oval hole is the semicircle, and the lower part is semiellipse, and wherein semicircle's diameter and semiellipse's minor axis coincide.
The through holes are divided into middle through holes and bottom through holes according to the positions of the holes on the water passing wall, wherein the middle through holes are the central positions of the water passing wall submerged in water, and the bottom through holes are the lowest points of the holes tangent to the river bed.
The height of the water through wall is equal, so that the overflow weir at the top of the water through wall forms a slope.
The overflow weir has two forms, a flat-top weir and a notched weir. The bottom plate of the water channel is stepped along the way, and the height of the water through wall on the bottom plate is kept the same. The notch weirs are positioned on one side of the water through wall and are arranged in a longitudinally staggered mode along the water through channel. The flat-top weir-flow type water channel is suitable for discharging rivers with larger flow, while the notched weir-flow type water channel is suitable for discharging rivers with smaller flow, so that the weir-flow type can be selected according to the river runoff and the requirements of discharging ecological base flow; the flat-top weir flow type forms two-dimensional water flow in the water channel pool, and the notch weir flow type forms three-dimensional water flow in the water channel pool, so that the method is suitable for different jumping fishes.
The through openings are divided into rectangular and oval shapes according to the shapes. The rectangular holes are designed to have an aspect ratio a/b. The upper half part of the oval hole is a semicircle, and the lower half part of the oval hole is a semiellipse. The orifice is divided into a middle port and a bottom port according to the position of the orifice on the vertical partition plate, the middle port refers to the central position (the middle hole position can be designed according to the average water depth of years) of the water passing wall submerged in water, and the bottom port refers to the lowest point of the orifice tangent to the river bed. The orifice type water channel is suitable for large and medium fishes which like to migrate at the bottom layer, and has good adaptability to upstream and downstream water level changes.
The strip-shaped seams are rectangular vertical seams arranged on the water passing wall of the water passing channel, the rectangular vertical seams on the water passing wall are linearly arranged on the same side and staggered on different sides along the longitudinal direction of the water tank, and the length-width ratio L/W, the seam width ratio b/W and the fall between the water tanks of different water tanks are considered. When combined with the notch weir, is located on the opposite side of the notch weir. The strip-shaped seams are divided into the same side and the different side, if the strip-shaped seams are linearly arranged along the same side of the fishway water tank, the main flow track is a straight line, the fast upward tracing of the fishes with strong upstream tracing ability is facilitated, and the parent fishes can rapidly flee several water passing walls at one time without stopping; if the strip seams on the adjacent water passing walls are arranged in a staggered mode on different sides, the main flow track is a curve, a horizontal vortex is formed in the fishway water pool, and the swimming-tracing fish rest is facilitated.
The utility model has the advantages that: the three combined flow characteristics of the overflow weir, the orifice and the strip-shaped seam on the same water passing wall not only have respective flow characteristics, but also form the flow characteristics special for the three combinations due to the mixing of three different water flows, and the upstream and downstream water passing walls in the same pool are arranged in a staggered way so as to be suitable for passing fishes with different upstream habits, namely, the fishes which can be favored by jumping, the fishes which can be favored by the upstream in the middle and lower layers in the same fishway and the fishes with various habits can be simultaneously passed; the device has the advantages of simple structure, various forms, easy manufacture, convenient maintenance, economy, practicality, excellent hydraulic characteristics and capability of generating turbulent fluctuation areas and vortex areas required by fish migration.
Drawings
Fig. 1 is a schematic diagram of the fishway elevation of the present invention (arrow a represents the direction of water flow);
fig. 2a is a front view (rectangular through opening) of the present invention;
fig. 2b is a side view of the present invention (rectangular through opening);
fig. 2c is a top view (rectangular through opening) of the present invention;
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
With reference to the accompanying drawings:
embodiment 1 the utility model discloses a combined water diversion device, including inflow channel 1, test channel 2 and drainage channel 3, inflow channel 1, test channel 2 and drainage channel 3 are linked together end to end smoothly, form a coaxial and intercommunication canal each other, join in marriage on inflow channel 1's the inlet channel 11 and equip control valve 12, the delivery end of drainage channel 3 equips outflow weir 31; a plurality of water passing walls 4 which are used for changing the water flow mode and are parallel to each other are arranged in the test channel 2, the water passing walls 4 are vertically arranged in the test channel 2, the test channel 2 is divided into a plurality of test subareas, a through hole 41 is formed in the middle or the bottom of each water passing wall 4, an overflow weir is arranged on the upper edge of each water passing wall 4, and only one side edge of each water passing wall 4 is sunken inwards to form a strip-shaped seam 42; the rectangular recess 43 sinking from the top of the water passing wall 4 forms the edge of the water passing wall as a recess weir, and is provided at the upper edge of the end away from the strip-shaped slit 42 and partially offset from the strip-shaped slit 42.
The water flow passing through the water passing walls 4 is divided into two flow modes of straight line and staggered flow according to the water flow form passing through the strip-shaped seams, wherein the straight line means that orthographic projections of the strip-shaped seams on a plane parallel to the water passing walls are superposed with each other, so that the water flow passing through the strip-shaped seams is linear water flow, and the staggered flow means that orthographic projections of the strip-shaped seams of two adjacent water passing walls on the plane parallel to the water passing walls are symmetrical about the vertical central axis of the water passing walls, so that the water flow passing through the strip-shaped seams is curved water flow.
The water through wall 4 is vertically arranged on the inner side wall of the water through channel and keeps the water through wall vertical to the water through channel bottom plate of the water through channel.
The bottom plate of the water channel clamped between the water through wall at the most upstream and the water through wall at the most downstream is a stepped bottom plate 5, the height of the step of the stepped bottom plate is gradually reduced along the water flow direction, and a water through wall is vertically assembled at the joint of two adjacent steps.
The through opening 41 is a rectangular hole or an oval hole.
the opening 41 is an oval hole, the upper portion of the oval hole is a semicircle, the lower portion of the oval hole is a semiellipse, and the diameter of the semicircle coincides with the minor axis of the semiellipse.
The ports 41 are divided into a middle port and a bottom port according to the position of the orifice on the water passing wall, wherein the middle port is the central position of the water passing wall submerged in water, and the bottom port is the lowest point of the orifice tangent to the river bed.
The height of the water passing wall 4 is equal, so that a slope is formed on an overflow weir at the top of the water passing wall, wherein the slope of the weir head is delta H, the height of the water passing wall is H, and the length of a test area is L.
Embodiment 2 the utility model discloses a device body is a large-scale glass basin, and the glass basin is long 20m, wide 60cm, dark 100cm, divide into the three-section: an inflow channel 1, a test channel 2 and a drainage channel 3. The inflow channel 1 is made of a steel plate; the test channel 2 is divided into 4 test areas by the water passing wall, the test areas are named as a first water pool, a second water pool, a third water pool and a fourth water pool respectively, the lengths of the water pools are adjustable according to the installation positions of the water passing wall, a water passing channel bottom plate from a downstream water pool to an upstream water pool along the longitudinal direction of the water passing channel is in a step shape, the two sides and the bottom of the water pools are made of toughened glass, and the water passing wall is made of movable organic glass or polyethylene plates; polyethylene plates are arranged on two sides of the drainage channel 3. 4 test pools, each 1800mm long and 600mm wide, were separated in the test channel 2 using 5 equal-height water walls. The water depth of the water pool is changed by using the stepped bottom plate, the slope of the stepped bottom plate with the height of 50mm is set, different bottom plate heights are changed according to experiment requirements, and the stepped bottom plate is firstly set to be a bottom plate with the height of 200mm in the water pool.
The embodiment uses the water passing wall which is a combination form of a notch weir, a rectangular middle through opening and a 100mm strip-shaped seam, the thickness of the water passing wall is 10mm, the design size of the notch weir is 200 multiplied by 150mm (width multiplied by depth), each water passing wall is provided with a height difference of 50mm, namely, the first water passing wall is 50mm higher than the second water passing wall; a rectangular middle part is provided with a through hole, and a bottom hole with the width and the height of 160 multiplied by 240mm is arranged at the center of the water passing wall; the strip-shaped seam is a rectangular strip-shaped seam with the width of 100mm arranged on one side of the water passing wall, and the surplus height of 50mm is arranged at the top of the water passing wall. The flow speed is changed by adjusting the glass water tank outlet flashboard, so that different ecological hydraulic conditions are provided for different habit migration fishes to pass through the orifice fishway. The water flow passing through the water passing wall 4 is divided into two flow modes of straight line or staggered according to the water flow form passing through the strip-shaped seam by taking the position of the strip-shaped seam as reference.
The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, and the scope of the invention should not be considered limited to the specific forms set forth in the embodiments, but rather the scope of the invention includes equivalent technical means that can be conceived by those skilled in the art based on the inventive concepts.
Claims (9)
1. Modular device of leading water, its characterized in that: the system comprises an inflow channel, a test channel and a drainage channel, wherein the inflow channel, the test channel and the drainage channel are smoothly communicated end to form a coaxial and mutually communicated water channel; the test channel is internally provided with a plurality of water through walls which are used for changing the water flow mode and are parallel to each other, the water through walls are vertically arranged in the test channel, the test channel is divided into a plurality of test subareas, the middle part or the bottom of each water through wall is provided with a through hole, the edge of each water through wall is provided with an overflow weir, and only one side edge of each water through wall is sunken inwards to form a strip-shaped seam; the rectangle notch that the top subsides makes on the wall edge form the notch weir wall that leads to water, and the rectangle notch setting is kept away from the last edge of strip seam one end to with the strip seam part dislocation.
2. The combined water diversion device of claim 1, characterized in that: the water flow passing through the water passing walls is divided into two flow modes of straight line or staggered flow according to the water flow form passing through the strip-shaped seams, wherein the straight line means that orthographic projections of the strip-shaped seams on a plane parallel to the water passing walls are superposed with each other, so that the water flow passing through the strip-shaped seams is linear water flow, and the staggered flow means that orthographic projections of the strip-shaped seams of two adjacent water passing walls on the plane parallel to the water passing walls are symmetrical about the vertical central axis of the water passing walls, so that the water flow passing through the strip-shaped seams is curved water flow.
3. The combined water diversion device of claim 2, characterized in that: the water through wall is vertically arranged on the inner side wall of the water through channel and is kept vertical to the water channel bottom plate of the water through channel.
4. The combined water diversion device of claim 1, characterized in that: the water channel bottom plate clamped between the water through wall at the most upstream and the water through wall at the most downstream is a stepped bottom plate, the height of the step of the stepped bottom plate is gradually reduced along the water flow direction, and the joint of two adjacent steps is vertically provided with one water through wall.
5. The combined water diversion device of claim 1, characterized in that: the opening is a rectangular hole or an oval hole.
6. The combined water diversion device of claim 4, wherein: the opening is the rectangular hole, and the long limit of rectangular hole is perpendicular with the water course bottom plate that corresponds experimental region to the aspect ratio of rectangular hole is 3: 2.
7. the combined water diversion device of claim 5, characterized in that: the opening is oval hole, and the upper portion in oval hole is the semicircle, and the lower part is semiellipse, and wherein semicircle's diameter and semiellipse's minor axis coincide.
8. The combined water diversion device of any one of claims 1, 5, 6 or 7, characterized in that: the through holes are divided into middle through holes and bottom through holes according to the positions of the holes on the water passing wall, wherein the middle through holes are the central positions of the water passing wall submerged in water, and the bottom through holes are the lowest points of the holes tangent to the river bed.
9. The combined water diversion device as claimed in claim 1, wherein: the height of the water through walls is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921530984.9U CN211646291U (en) | 2019-09-16 | 2019-09-16 | Combined water diversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921530984.9U CN211646291U (en) | 2019-09-16 | 2019-09-16 | Combined water diversion device |
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| CN211646291U true CN211646291U (en) | 2020-10-09 |
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| CN201921530984.9U Active CN211646291U (en) | 2019-09-16 | 2019-09-16 | Combined water diversion device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370036A (en) * | 2022-02-16 | 2022-04-19 | 重庆交通大学 | Novel fishway structure of key weir combination orifice formula |
| CN114370036B (en) * | 2022-02-16 | 2024-04-12 | 重庆交通大学 | Novel fishway structure of key weir combination drill way formula |
-
2019
- 2019-09-16 CN CN201921530984.9U patent/CN211646291U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370036A (en) * | 2022-02-16 | 2022-04-19 | 重庆交通大学 | Novel fishway structure of key weir combination orifice formula |
| CN114370036B (en) * | 2022-02-16 | 2024-04-12 | 重庆交通大学 | Novel fishway structure of key weir combination drill way formula |
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