CN-122013711-A - Intelligent fish catching channel flow speed supplementing device of fish lifting machine and construction process of intelligent fish catching channel flow speed supplementing device

CN122013711ACN 122013711 ACN122013711 ACN 122013711ACN-122013711-A

Abstract

The invention relates to an intelligent fish-catching channel flow speed supplementing device of a fish lift and a construction process thereof, and belongs to the technical field of water conservancy and hydropower engineering. The device comprises three systems of diversion, flow speed sensing and intelligent control, and can automatically adjust the power of the submersible pump and the angle of the spray head according to the real-time flow speed, and the matched process comprises survey design, modularized prefabrication, underwater installation and debugging optimization steps. The invention realizes accurate regulation and control of the flow velocity, adapts to the flow-driving requirement of the target fish species, improves the fish-passing efficiency, reduces the construction and operation cost, and is suitable for various hydropower station fish lift engineering.

Inventors

DENG LIANGJUN
YANG SHIJIE
ZHANG XIN
HUANG JINQUAN
WANG XUN
WANG JINGTAO
LI WENJIE
ZHANG CAIXIU
YANG YIWEN
GAO RU
LI XIAOBANG
WANG CHUJUN
LIN CHUNLAN

Assignees

中国电建集团昆明勘测设计研究院有限公司

Dates

Publication Date: 20260512
Application Date: 20260323

Claims (10)

1. An intelligent fish lift fish catching channel flow rate supplementing device, which is characterized by comprising: the diversion system comprises at least one submersible pump, a water delivery hose and a plurality of diversion nozzles capable of being adjusted at multiple angles, wherein an outlet of the submersible pump is connected with the diversion nozzles through the water delivery hose, and the diversion nozzles point to an inlet area of the fish catching and attracting channel; The flow speed sensing system comprises flow speed sensors which are arranged on one or more sections in the fish catching channel and are used for collecting water flow speed data in the channel; The intelligent control system comprises a controller, wherein the controller is in signal connection with the flow rate sensor and is used for receiving flow rate data, and the controller is further electrically connected with a control unit of the submersible pump and the flow guide nozzle and is used for adjusting the power of the submersible pump and the injection angle and direction of the flow guide nozzle according to a preset target flow rate range.
2. The intelligent fish catching channel flow speed supplementing device of the fish lifting machine according to claim 1, wherein the flow guide spray head is a spherical hinge spray head, the multi-angle adjustment in the horizontal direction and the vertical direction can be carried out, the adjusting structure of the flow guide spray head adopts a waterproof sealing design, the underwater operation environment can be adapted, the connecting part of the flow guide spray head and a water delivery hose adopts a compression-resistant and wear-resistant sealing joint, the sealing joint can bear underwater pressure, water flow leakage is prevented, the stable water flow conveying state of the flow guide spray head in the angle adjusting process is ensured all the time, and the water flow spraying requirements in different directions are met.
3. The intelligent fish-catching channel flow speed supplementing device of the fish-lifting machine according to claim 1, wherein the submersible pump is arranged on a movable support, the support is fixed on the bottom or a side slope of a reservoir through an anchoring piece, the support is made of a high-strength corrosion-resistant material, an anti-slip structure is arranged at the bottom of the support, the contact area with a mounting surface can be increased, a damping part is arranged between the submersible pump and the support, the damping part can reduce vibration generated during operation of the submersible pump, the displacement of the support caused by the vibration is avoided, and long-term stable operation of the submersible pump under water is ensured.
4. The intelligent fish-catching channel flow-speed supplementing device of the fish-lifting machine according to claim 1, wherein the flow-speed sensor is an acoustic Doppler flow-speed profiler or an electromagnetic flow-speed meter, a shell of the flow-speed sensor is made of waterproof and pressure-resistant materials, the installation position of the sensor avoids a direct impact area of water flow, the flow-speed sensor is fixed on the section of the fish-catching channel through a special installation support, and the connection of the installation support and the inner wall of the channel adopts an expansion bolt or a welding mode, so that the sensor is prevented from shaking or falling under the action of the water flow.
5. The intelligent fish-catching channel flow speed supplementing device of the fish-raising machine according to claim 1, wherein the intelligent control system further comprises a remote monitoring terminal, the controller is connected with the remote monitoring terminal through a wireless communication module, the wireless communication module adopts a waterproof packaging design, signals can be stably transmitted in an underwater or humid environment, the remote monitoring terminal can receive data transmitted by the controller, and meanwhile, control instructions can be sent to the controller, so that remote control and real-time monitoring of the running state of the diversion system are realized.
6. The construction process of the intelligent fish catching channel flow speed supplementing device of the fish lifting machine is characterized by comprising the following steps of: measuring hydrogeological conditions at the inlet of the fish catching channel, determining the preference flow velocity of the target fish species, and designing the distribution position, angle and target flow velocity curve of the diversion nozzle; Preassembling the submersible pump, the bracket, the flow guide spray head and part of pipelines into a module unit on the shore or in a factory; Hoisting the module unit to a designed position through hoisting equipment, fixing the module unit by using an anchoring piece, and completing connection and angle preliminary positioning of a water delivery hose and a diversion nozzle by a diver; installing a flow rate sensor, laying a cable and connecting the electrical equipment with a controller; manually controlling the diversion system, calibrating the flow field, writing a target flow speed range and control logic, and starting an automatic control mode test operation; after the fish migration season test operation, optimizing control parameters according to fish passing effects and operation data.
7. The construction process of the intelligent fish-catching channel flow-speed supplementing device of the fish-lifting machine according to claim 6 is characterized in that in the modularized prefabrication process, controller firmware burning, communication module parameter configuration and software pre-debugging of a flow-guiding spray head control unit are synchronously completed, unique identification codes are allocated to each module unit, communication joint debugging among modules is completed, smooth signal interaction among a submersible pump control module, a spray head adjusting module and a controller is ensured, meanwhile, software version information and communication parameters of each module are recorded, and a modularized prefabrication software debugging file is formed, so that system integration and butt joint after subsequent installation are facilitated.
8. The construction process of the intelligent fish-catching channel flow-speed supplementing device of the fish-lifting machine according to claim 6, wherein after the underwater foundation construction and installation are completed, an initial power-on test of a soft-through layer is added, a response state of starting and stopping of a test submersible pump and angle adjustment of a spray head is issued by a controller, the signal acquisition and transmission functions of a flow-speed sensor are detected, the stability of a communication link between each device and the controller is checked, a module with abnormal communication is subjected to positioning and investigation, and after the debugging and optimization of the communication link are completed, a subsequent sensor wiring and system integration stage is entered.
9. The construction process of the intelligent fish-catching channel flow-speed supplementing device of the fish-raising machine according to claim 6 is characterized in that in the sensor wiring process, after hardware cable laying is completed, sensor address distribution, data acquisition frequency setting and signal calibration are carried out on a software layer, a communication protocol between a controller and a remote monitoring terminal is configured, a data transmission link is built, a preset system linkage interface is accessed, communication protocol matching with a hydropower station drainage scheduling system is completed, and bidirectional interaction of data in subsequent operation is ensured.
10. The construction process of the intelligent fish-catching channel flow-speed supplementing device of the fish-raising machine according to claim 6 is characterized in that in the process of system debugging and parameter setting, a preset control algorithm logic is loaded in addition to a target flow-speed range, algorithm simulation operation test is carried out, test instructions under different working conditions are issued through a remote monitoring terminal, response logic of a controller for automatically adjusting submersible pump power and a spray head angle is verified, a data visualization interface of the remote monitoring terminal is synchronously debugged, and real-time display of operation data and accurate instruction issuing are ensured.

Description

Intelligent fish catching channel flow speed supplementing device of fish lifting machine and construction process of intelligent fish catching channel flow speed supplementing device Technical Field The invention belongs to the technical field of water conservancy and hydropower engineering, and particularly relates to an intelligent fish catching and attracting channel flow speed supplementing device of a fish lifting machine and a construction process thereof. Background In the construction and operation process of water conservancy and hydropower engineering, the fish lift is a key facility for guaranteeing ecological communication of rivers and assisting migration and reproduction of fishes, and the water flow velocity in a fish catching and attracting channel is a core factor for influencing the fish flow-driving behavior and the fish passing efficiency. At present, the flow speed of the traditional fish catching and attracting channel is regulated by adopting a fixed flow guiding structure or a mode of manually controlling a valve, and the mode has obvious limitations. On the one hand, the fish-farming control system cannot accurately regulate and control in real time according to the preference flow velocity difference of different fish species and the dynamic change of hydrologic conditions, and is extremely easy to cause the situation that the local flow velocity is too high or too low, so that the passing rate of the target fish species is low. On the other hand, traditional water conservancy diversion shower nozzle mostly designs by fixed angle, and flow field form is single, is difficult to adapt to the trend flow demand of different water layer fishes, and the shower nozzle is poor with the junction part sealing performance of pipeline simultaneously, and the leakage problem easily appears in long-term operation under water, influences system stability. In the equipment installation link, the immersible pump is fixed in the submarine directly generally, lacks shock attenuation antiskid design, and the vibration that produces when the operation easily leads to the equipment displacement, and traditional construction process mostly dispersedly assembles on-the-spot, and underwater operation process is loaded down with trivial details, cycle is long, and the debugging degree of difficulty is big. In addition, the flow speed monitoring data of the existing system are mostly collected locally, remote monitoring and linkage scheduling capability is lacked, the existing system cannot work together with a hydropower station drainage scheduling system, and when the drainage quantity changes, the channel flow speed is easy to fluctuate greatly, so that the fish passing efficiency is further reduced. Disclosure of Invention In order to solve the problems in the prior art, the invention provides an intelligent fish catching channel flow speed supplementing device of a fish lifting machine and a construction process thereof. The aim of the invention can be achieved by the following technical scheme: In an embodiment of the first aspect, the present invention provides an intelligent fish lift fishing channel flow rate supplementing device, including: the diversion system comprises at least one submersible pump, a water delivery hose and a plurality of diversion nozzles capable of being adjusted at multiple angles, wherein an outlet of the submersible pump is connected with the diversion nozzles through the water delivery hose, and the diversion nozzles point to an inlet area of the fish catching and attracting channel; The flow speed sensing system comprises flow speed sensors which are arranged on one or more sections in the fish catching channel and are used for collecting water flow speed data in the channel; The intelligent control system comprises a controller, wherein the controller is in signal connection with the flow rate sensor and is used for receiving flow rate data, and the controller is further electrically connected with a control unit of the submersible pump and the flow guide nozzle and is used for adjusting the power of the submersible pump and the injection angle and direction of the flow guide nozzle according to a preset target flow rate range. In a further embodiment of the invention, the flow guide spray head is a spherical hinge spray head, the horizontal direction and the vertical direction can be regulated at multiple angles, the regulating structure of the flow guide spray head adopts a waterproof sealing design, the water guide spray head can adapt to the underwater operation environment, the connecting part of the flow guide spray head and the water delivery hose adopts a compression-resistant and wear-resistant sealing joint, the sealing joint can bear the underwater pressure, the water flow leakage is prevented, the stable water flow delivery state of the flow guide spray head in the angle regulation process is ensured all the time, and the water flow injection requirements in