CN-122013734-A - Flexible fish lifting machine system

CN122013734ACN 122013734 ACN122013734 ACN 122013734ACN-122013734-A

Abstract

The invention discloses a flexible fish lifting machine system, and belongs to the technical field of water conservancy and hydropower ecological protection. The system comprises a dam and a flexible fish lift, wherein the flexible fish lift comprises a main body frame, a flexible fish collecting mechanism and a lifting traction mechanism, a bearing plate is arranged on the upper portion of the main body frame, the upper end of the flexible fish collecting mechanism is connected with the bottom of the bearing plate, the lifting traction mechanism is arranged on the bearing plate and is connected with the lower end of the flexible fish collecting mechanism, the flexible fish collecting mechanism comprises a plurality of vertically compressible flexible fish collecting boxes which are sequentially arranged from bottom to top, and two vertically compressible flexible fish collecting boxes which are adjacent from top to bottom are mutually communicated. The fish lifting in the flexible fish collecting boxes can be completed by adopting one set of lifting traction mechanism, so that the operation process of the flexible fish lifting machine system is simplified, and the operation energy consumption of the flexible fish lifting machine system is obviously reduced.

Inventors

ZHOU JIAFEI
JIN ZHIJUN
HUANG GUOQING
ZHANG QING
ZHOU JIA
ZHAO ZAIXING
XIA HAO
WANG MENG
MA WEIZHONG
WANG XIN
CHANG LI
WANG YONGMENG

Assignees

中国电建集团贵阳勘测设计研究院有限公司

Dates

Publication Date: 20260512
Application Date: 20260212

Claims (10)

1. The flexible fish lift system is characterized by comprising a dam (1) and a flexible fish lift (5), wherein a fish transferring road (2) is arranged on a bank slope at one side of the dam (1), the flexible fish lift (5) is arranged at the downstream side of the dam (1), and a fish outlet of the flexible fish lift (5) is connected with a part, positioned at the downstream side of the dam (1), on the fish transferring road (2) through a transition chute (4); The flexible fish lifting machine (5) comprises a main body frame (51), a flexible fish collecting mechanism (52) and a lifting traction mechanism (55), wherein a bearing plate (511) is arranged at the upper part of the main body frame (51), the upper end of the flexible fish collecting mechanism (52) is connected with the bottom of the bearing plate (511), and the lifting traction mechanism (55) is arranged on the bearing plate (511) and is connected with the lower end of the flexible fish collecting mechanism (52); the flexible fish collecting mechanism (52) comprises a plurality of vertically compressible flexible fish collecting boxes which are sequentially arranged from bottom to top, and two vertically compressible flexible fish collecting boxes which are adjacent from top to bottom are mutually communicated.
2. The flexible fish lifting system as claimed in claim 1, wherein one end of the transition chute (4) far away from the flexible fish lifting machine (5) is positioned above the transportation fish road (2) and is connected with the transportation fish road (2) through a support frame.
3. The flexible fish lift system of claim 1 wherein all vertically compressible flexible fish gathering tanks in the flexible fish gathering mechanism (52) are arranged in two rows with vertically compressible flexible fish gathering tanks in the two rows alternating up and down.
4. The flexible fish lift system of claim 3 wherein, in the upper and lower adjacent vertically compressible flexible fish tanks, the upper portion of the next vertically compressible flexible fish tank is connected to and in communication with the lower portion of the previous vertically compressible flexible fish tank.
5. The flexible fish lift system of claim 3 or 4 wherein the vertically compressible flexible fish collection tank comprises a flexible membrane bladder (523), a top plate (524) is provided at an upper end of the flexible membrane bladder (523), and a bottom plate (521) is provided at a lower end of the flexible membrane bladder; a top plate (524) with the highest elevation in the flexible fish collecting mechanism (52) is fixedly connected with the bottom of the bearing plate (511), and a pushing frame (522) is arranged right below the vertically compressible flexible fish collecting box on a bottom plate (521) of the vertically compressible flexible fish collecting box with the lowest elevation; the upper part of one side wall of the flexible membrane bag (523) with the lowest elevation in the flexible fish collecting mechanism (52) is provided with a membrane bag fish outlet (5233), the lower parts of one side wall of the other flexible membrane bags (523) are provided with a membrane bag fish inlet A (5232), and the upper parts of the other flexible membrane bags are provided with membrane bag fish outlets (5233).
6. The flexible fish lift system of claim 5 wherein the top surface of the bottom plate (521) is an inclined surface, and the lower end of the inclined surface is arranged near the side wall of the flexible membrane bag (523) provided with the membrane bag fish inlet A (5232) or the membrane bag fish outlet (5233); The main body frame (51) is provided with a middle chute (525) for connecting the film bag fish outlet (5233) with the highest elevation with the fish inlet of the transition chute (4).
7. The flexible fish lifting system as recited in claim 5, wherein the main frame (51) is provided with a sliding rail (53) on the front and rear sides of the two rows of vertically compressible flexible fish collecting boxes, and a top plate (524) and a bottom plate (521) of each vertically compressible flexible fish collecting box are respectively connected with the sliding rail (53) on the front and rear sides thereof in a sliding manner through sliding blocks (56).
8. The flexible fish lifting system as recited in claim 5, wherein the lifting traction mechanism (55) comprises a winch (551) and a traction rope (552), the winch (551) is arranged on the bearing plate (511), one end of the traction rope (552) is connected with the winch (551), the middle part is wound on the winch (551), and the other end is connected with the bottom plate (521) with the lowest elevation.
9. A flexible fish lift system as set forth in claim 1 wherein the main body frame (51) has two fish attracting mechanisms (54) side by side and the flexible fish collecting mechanism (52) is located between the two fish attracting mechanisms (54).
10. The flexible fish lifting machine system according to claim 1, wherein the fish attracting mechanism (54) comprises a mounting frame (541) and a water pump, the mounting frame (541) is fixedly arranged on the main body frame (51), a plurality of electric cylinders (544) and a plurality of hollow horn-shaped fish attracting pieces (542) are arranged on the mounting frame (541) at intervals from bottom to top, the electric cylinders (544) are located above the hollow horn-shaped fish attracting pieces (542) one by one, small ends of the hollow horn-shaped fish attracting pieces (542) are arranged close to the flexible fish collecting mechanism (52), a plurality of spray heads (543) are arranged at the large ends of the hollow horn-shaped fish attracting pieces (542) in a circumferential array, the spray heads (543) are communicated with an interlayer of the hollow horn-shaped fish attracting pieces (542), the water pump is communicated with the interlayer of the hollow horn-shaped fish attracting pieces (542) through a pipeline, and an interception net (545) is arranged at the lower ends of the electric cylinders (544); When the flexible fish collecting mechanism (52) is in a stretching state, a membrane bag fish inlet B (5231) is formed in the position, aligned with the hollow horn-shaped fish attracting piece (542), of the flexible membrane bag (523).

Description

Flexible fish lifting machine system Technical Field The invention relates to a flexible fish lifting machine system, and belongs to the technical field of water conservancy and hydropower ecological protection. Background The fish lift is one of the main fish passing facilities in water conservancy and hydropower engineering, and has the working principle similar to that of a ship lift, and is mainly characterized in that fish is trapped into a metal net cage or a water tank type fish carrying box through a fish trapping facility, and then the fish carrying box is turned over by a vertical lifting or inclined lifting method, so that the purpose of ascending or descending of the fish is realized. The traditional fish lift mainly comprises fish collecting facilities, lifting facilities, releasing facilities and the like, wherein the fish collecting facilities are used for attracting fish through fish blocking and guiding facilities, fish collecting channels, fish collecting grooves and fish catching grids, the lifting facilities are used for lifting fish shoals attracted and collected, and finally the fish is released to the upstream of the dam through the releasing facilities. Compared with the most widely applied fishway, the traditional fish lift has the advantages of small occupied area, higher mechanical transfer efficiency and low sensitivity to upstream water level change of a dam, but has the defects of high operation and maintenance cost, periodic operation characteristics, difficulty in realizing continuous fish passing, large facility adopting rigid material rigid connection, overlarge dead weight and easiness in damaging fish body due to mechanical friction in the operation process. The prior fish lifting machine technology has been partially explored in the aspect of continuous fish passing difficulty, for example, chinese patent literature with the bulletin number of CN119877488B discloses a fish passing system with autonomous and auxiliary fish passing functions, the fish passing system is provided with a fishway combination body comprising a first square pipe body and a second square pipe body, a fish lifting mechanism is arranged in the first square pipe body and is used for vertically lifting fish into the temporary storage tray, the fish lifting mechanism comprises a sliding rail, a plurality of fish collecting boxes and a plurality of screw rods, the sliding rail is arranged in the first square pipe body, each fish collecting box is in sliding fit with the corresponding fish collecting box, each fish collecting box is in threaded fit with one screw rod, a plurality of driving motors are arranged at the top of the first square pipe body, and an output shaft of each driving motor is connected with the top end of one screw rod. Therefore, the fish passing system is provided with a plurality of fish collecting boxes according to fish habits of different perching layers, and continuous fish passing is realized, however, each fish collecting box is required to be driven by a set of driving motor and a screw-nut mechanism, the operation process is complicated, the energy consumption is overlarge, and a large technical lifting space still exists. Disclosure of Invention In order to solve the technical problems, the invention provides a flexible fish lifting machine system. The invention is realized by the following technical scheme: the flexible fish lift system comprises a dam and a flexible fish lift, wherein a fish transferring road is arranged on a bank slope at one side of the dam, the flexible fish lift is arranged at the downstream side of the dam, and a fish outlet of the flexible fish lift is connected with a part, located at the downstream side of the dam, of the fish transferring road through a transition chute; The flexible fish lifting machine comprises a main body frame, a flexible fish collecting mechanism and a lifting traction mechanism, wherein a bearing plate is arranged at the upper part of the main body frame, the upper end of the flexible fish collecting mechanism is connected with the bottom of the bearing plate, and the lifting traction mechanism is arranged on the bearing plate and is connected with the lower end of the flexible fish collecting mechanism; The flexible fish collecting mechanism comprises a plurality of vertically compressible flexible fish collecting boxes which are sequentially arranged from bottom to top, and the upper and lower adjacent vertically compressible flexible fish collecting boxes are mutually communicated. One end of the transition chute, which is far away from the flexible fish lifting machine, is positioned above the transportation fish road and is connected with the transportation fish road through a support frame. All the vertically compressible flexible fish collecting boxes in the flexible fish collecting mechanism are arranged in two rows, and the vertically compressible flexible fish collecting boxes in the two rows are alternately ar