CN214363352U

CN214363352U - Vertical double-slit fishway

Info

Publication number: CN214363352U
Application number: CN202022508562.0U
Authority: CN
Inventors: 曾一夫; 张建华; 廖冬芽; 刘芸华; 万小明; 陈卫; 黄淑芳; 卢韬; 康宏志
Original assignee: Jiangxi Water Conservancy Planning And Design Institute Co ltd
Current assignee: China Railway Water Resources and hydropower planning and Design Group Co.,Ltd.
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-10-08
Anticipated expiration: 2030-11-03

Abstract

The utility model relates to a vertical double-seam fishway, which comprises a first fishway partition wall, a second fishway partition wall, a plurality of fishway cross partitions, a fishway bottom plate, a first vertical seam and a second vertical seam; the first fishway partition wall and the second fishway partition wall are arranged in parallel; the fishway diaphragm plates are arranged on the first fishway partition wall and the second fishway partition wall in a staggered manner at intervals; the fishway partition wall and the fishway diaphragm plate arranged on the other side fishway partition wall form the first vertical seam; the first vertical seam forms a first fishway; the fishway diaphragm is provided with the second vertical seams, and the second vertical seams form a second fishway. The utility model discloses utilize the cross slab forms a plurality of velocity of flow districts to for the migration of fish provides the passageway, has weakened the influence of hydraulic structure to former river ecology, is favorable to founding ecological water conservancy construction, is fit for the large tracts of land and uses widely.

Description

Vertical double-slit fishway

Technical Field

The utility model relates to a fishway technical field, concretely relates to perpendicular double slit formula fishway.

Background

The fishway is a common measure for relieving the influence of damming engineering on the connectivity of fishes and rivers, and can help the blocked fishes smoothly go upwards or downwards to pass through a dam or other obstacles to reach important life history places such as breeding places, bait-demand places or overwintering places. The method has the effects of effectively protecting biological resources, promoting the communication of genetic information of fishes at upstream and downstream of the dam site, maintaining a natural fish gene bank, ensuring the germplasm resources of the fishes, maintaining the population structure of the fishes and the like. Among them, the most widely used is the vertical seam fishway.

Patent document No. CN210134403U discloses a vertical-seam type double-chamber fishway, which uses U-shaped partition plates to form a resting tank, increases the passing area and passing amount of fish, and improves the fish passing efficiency, but all fishways are on the same horizontal plane, which is not beneficial to the migration of fish groups.

Disclosure of Invention

An object of the utility model is to provide a perpendicular double slit formula fishway founds a plurality of velocity of flow districts to fish that various sizes and swimming ability are different pass through, and for the fish migration provides the passageway, weaken hydraulic structure simultaneously and do benefit to and found ecological water conservancy construction to the ecological influence in former river.

The utility model adopts the technical proposal that: a vertical double-slit fishway comprises a first fishway partition wall, a second fishway partition wall, a plurality of fishway cross partition plates, a fishway bottom plate, a first vertical slit and a second vertical slit; the first fishway partition wall and the second fishway partition wall are arranged on the fishway bottom plate in parallel; the fishway diaphragm plates are arranged on the first fishway partition wall and the second fishway partition wall in a staggered manner at intervals; the fishway partition wall and the fishway diaphragm plate arranged on the other side fishway partition wall form the first vertical seam; the first vertical seam forms a first fishway; the fishway diaphragm is provided with the second vertical seams, and the second vertical seams form a second fishway.

Further, the depth of the second vertical seam is 1000mm, and the width of the second vertical seam is 500 mm.

Further, the first and second perps are spaced apart by 150 mm.

Furthermore, cobbles are paved on the bottom plate of the fishway.

Further, the first fishway partition wall and the second fishway partition wall are made of concrete.

The utility model has the advantages that the first fishway is formed by the plurality of fishway cross partitions and the first fishway partition wall and the second fishway partition wall, and a plurality of flow velocity zones are formed, so that fishes with different body types and different swimming capacities can pass through the flow velocity zones; vertical seams on the fishway transverse partition plates form a second fishway which is not positioned on the same horizontal plane with the first fishway, so that the migration of fish schools is facilitated; the vertical double-slit fishway effectively improves the fish passing amount, weakens the influence of hydraulic buildings on the original river ecology, and is favorable for constructing ecological water conservancy construction.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a front view of the embodiment of the present invention.

The reference signs explain: 1. the fishway comprises a first fishway partition wall, 2. a second fishway partition wall, 3. a fishway diaphragm plate, 4. a first vertical seam, 5. a second vertical seam and 6. a fishway bottom plate.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and the present invention is not limited to the specific embodiments disclosed below.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and claims of this patent application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.

As shown in fig. 1, a vertical double-slit fishway comprises a first fishway partition wall 1, a second fishway partition wall 2, a plurality of fishway cross partitions 3, a fishway bottom plate 6, a first vertical slit 4 and a second vertical slit 5; the first fishway partition wall 1 and the second fishway partition wall 2 are arranged on the fishway bottom plate 6 in parallel to form a main body of the vertical double-slit fishway. The fishway diaphragm plates 3 are arranged on the first fishway partition wall 1 and the second fishway partition wall 2 in a staggered mode at intervals, and one side of each fishway diaphragm plate 3 is connected with the corresponding fishway partition wall; the fishway partition wall and the fishway diaphragm plate 3 arranged on the other fishway partition wall form the first vertical seam 4; the first vertical seam 4 forms the first fishway; and a second vertical seam 5 is arranged on the fishway diaphragm 3, and the second vertical seam 5 forms the second fishway. The second fishway and the first fishway are located on different horizontal planes, so that when a fish school migrates through the second fishway, the fish school does not interfere with the fish school in the first fishway, and the migration efficiency of the fish school is improved.

As shown in fig. 2, the first vertical seam 4 is spaced from the second vertical seam 5 by 150 mm; the depth of the second vertical seam 5 is 1000mm, and the width of the second vertical seam is 500 mm; cobblestones are laid on the fishway bottom plate 6; the first fishway partition wall 1 and the second fishway partition wall 2 are made of concrete.

The embodiment of the utility model provides an embodiment main fish object of crossing is herring, grass carp, silver carp, bighead carp and red-eye trout and minnow, and it likes the velocity of flow and between 0.3m/s ~ 0.5m/s, removes experimental fish physical strength reason, and the limit velocity of flow is above 1.0 m/s. The utility model discloses fishway perps design velocity of flow is for 0.7 ms ~ 1.2m/s, and the demand of tracing to on of experimental fish can be satisfied to this velocity of flow. Cobblestones are laid on the fishway bottom plate 6, the bottom of the fishway is properly roughened, the bottom flow rate is reduced to 0.7-1.1 m/s, and the fishway bottom plate can be suitable for fishes with small body shapes or relatively weak swimming capacity to pass through.

The embodiment of the utility model provides a through setting fishway cross slab 3 separates into one by one little pond with the fishway, first fishway 4 is less than because of the width first fishway partition wall 1 and second fishway partition wall 2 between the width, so the water velocity of the department of first fishway is faster. As with the first fishway, the width of the second fishway is also smaller than the width between the first fishway partition wall 1 and the second fishway partition wall 2, so the water flow rate at the second fishway is also faster. The bottom water flow has a flow velocity lower than that of the top under the blocking effect of the cobblestones, so that the whole fishway has a plurality of flow velocity zones, fishes with different body types and swimming capacities can conveniently pass through the fishway, and the fish passing efficiency is improved. The main stream of the water flow in the fishway is symmetrically distributed, and the water flow state is good; because no solid wall boundary exists in the fishway pool, the main flow direction of the fishway pool is more deviated to the center of the pool, and the adherent flow of water flow is reduced. First fishway with the second fishway is in the horizontal plane of difference, provides convenience for migration fish free choice migration passageway, prevents mutual interference between the shoal of fish, forms a plurality of backward flow districts simultaneously, is favorable to fish to fully rest.

The embodiment of the utility model forms a first fishway by a plurality of fishway cross clapboards 3 and the first fishway partition wall 1 and the second fishway partition wall 2 to form a plurality of flow velocity zones so as to pass fishes with different body types and swimming capacities; the vertical seams on the fishway transverse partition plates 3 form a second fishway which is not positioned on the same horizontal plane with the first fishway, so that the migration of fish schools is facilitated; the embodiment of the utility model provides an effectively improved fish capacity, weakened hydraulic construction and to the ecological influence in former river, be favorable to founding ecological water conservancy construction.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A vertical double-seam fishway is characterized by comprising a first fishway partition wall, a second fishway partition wall, a plurality of fishway cross partition plates, a fishway bottom plate, a first vertical seam and a second vertical seam; the first fishway partition wall and the second fishway partition wall are arranged on the fishway bottom plate in parallel; the fishway diaphragm plates are arranged on the first fishway partition wall and the second fishway partition wall in a staggered manner at intervals; the fishway partition wall and the fishway diaphragm plate arranged on the other side fishway partition wall form the first vertical seam; the first vertical seam forms a first fishway; the fishway diaphragm is provided with the second vertical seams, and the second vertical seams form a second fishway.

2. The vertical double-slit fishway as claimed in claim 1, wherein the second vertical slit has a depth of 1000mm and a width of 500 mm.

3. A vertical double-slit fishway as claimed in claim 1, characterised in that the first and second vertical slits are spaced apart by 150 mm.

4. The vertical double-slit fishway as claimed in claim 1, wherein the bottom plate of the fishway is paved with cobbles.

5. The vertical double-slit fishway as claimed in claim 1, wherein the first and second fishway partitions are made of concrete.