CN206800347U - The transporting something containerized fish platform on dam is crossed for fish - Google Patents

Abstract

A fish collecting platform for fish crossing the dam, including a hull platform arranged in the center of the channel downstream of the dam body, a horn-shaped fish inlet is opened at the tail of the hull platform, and a fish guide grid is connected to the entrance of the horn-shaped fish inlet. The hull platform is provided with a fish passing channel connected with the trumpet-shaped fish inlet; a fish luring device, a fish driving device and a fish transfer device are installed on the hull platform; in the fish luring device, the fish luring light is installed on the fish guiding grid. The fish collecting and transporting platform for fish crossing the dam provided by the utility model can solve the problems of discontinuous fish passing in the existing fish passing facilities and a large number of motorized equipment. It can communicate and block river sections, restore the exchange of aquatic organism populations, and adapt to the changing rules of fish schools, minimize the physiological damage to fish, and realize the friendly and safe crossing of target fish.

Description

Fish collection and transportation platform for fish crossing dams

technical field

The utility model relates to the field of ecological water conservancy, in particular to a fish collecting and transporting platform used for fish crossing dams.

Background technique

Due to physiological needs, genetics and the influence of external environmental factors, fish often need to migrate. However, many water conservancy projects have cut off the complete river, blocked the migration channel of fish, and blocked the communication of fish populations upstream and downstream of the dam, posing a serious threat to the reproduction and survival of fish. In order to meet the needs of fish passing through the dam, people have built fixed fish passing facilities such as fish lifts, fishways, and fish gates, but their inlets cannot fully adapt to changes in the downstream flow regime, and the fish passing is not continuous, and there are many motorized equipment. The maintenance cost is high, especially the adaptability to high dams needs to be verified. At the same time, the engineering investment of the above-mentioned fish passing facilities is relatively high, and the coordination with the main project, such as a large hydropower station and its surrounding terrain and landforms, is poor. The above reasons have resulted in few successful fishway cases in China so far.

Contents of the invention

The technical problem to be solved by the utility model is to provide a fish collecting and transporting platform for fish crossing the dam, which can solve the problems of discontinuous fish passing in the existing fish passing facilities and many motorized equipment, without interference to the hub arrangement, flexible and flexible. The transportation distance is short, the cost is low, it can communicate and block river sections, restore the exchange of aquatic organism populations, and can adapt to the changing law of fish schools, minimize the physiological damage to fish, and realize the friendly and safe crossing of target fish.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a fish collection and transportation platform for fish crossing the dam, including a hull platform arranged in the center of the channel downstream of the dam body, and a horn-shaped fish inlet is provided at the tail of the hull platform. The entrance of the trumpet-shaped fish inlet is connected with a fish guide grid, and the hull platform is provided with a fish passage connected with the trumpet-shaped fish inlet;

Fish luring device, fish driving device and fish transfer device are installed on the hull platform;

In the fish luring device, the fish luring light is installed on the fish guide grid, and the two sides of the fish passing channel are installed with a flow-increasing pump and a plurality of rows of evenly arranged water spray pipes connected with the flow-increasing pump;

In the fish driving device, the fish blocking net is installed on the hydraulic mechanism with adjustable opening at the tail of the hull platform, and the ventilation pipe and the underwater flash light belt installed on the river bed are laid along the bottom of the fish blocking net;

In the fish transfer device, the electric fish fence is installed on the dragging track in the fish passage, the fish transport box is installed on the head of the hull platform, the channel fish fence is installed near the outlet of the trumpet-shaped fish inlet, and the head of the hull platform is also A lifting device matched with the fish transport box is installed.

The light color of the fish luring light is the preferred color of the target fish.

On one side of the pipe wall of the ventilation pipe, there are evenly a plurality of ventilation holes, and one end of the ventilation pipe is provided with a choke valve, and the other end of the ventilation pipe communicates with the air compressor installed on the bank through a ventilation hose.

A monitoring device is respectively installed on the fish luring device, the fish driving device and the fish transfer device.

The utility model provides the platform for collecting and transporting fish over the dam, and the beneficial effects are as follows:

1. It can be used in general still water areas, and the operating position can be changed, and the operation is flexible. Different working conditions can be set for different fishes, and the scope of application is wide.

2. When luring fish, fully consider the ecological habits of fish, use the current and phototaxis of fish, and achieve the purpose of improving the fish luring effect by creating fish preference light field and flow field, avoiding the Adverse effects of external physical factors on fish.

3. At the entrance of the fish-collecting platform, the flow-increasing pump jet is used to form a fish-lure water flow, and at the same time, fish-lure lights are used to induce fish to enter the fish-passing channel of the fish-collecting platform with the assistance of fish-guiding grids and fish-blocking nets. Attraction to different fish species.

4. By increasing the flow of the water flow through the fish channel of the fish collection platform through the flow increasing pump, a regional flow field preferred by fish is generated downstream of the channel, which enhances the fish luring ability of the fish collection platform.

5. Mechanical equipment will not produce harmful substances to the water body, and will not damage the river water ecology and environmental system.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic cross-sectional view of the stern section of the hull platform of the present invention;

Fig. 3 is a schematic diagram of a longitudinal section of the hull platform of the present invention;

Fig. 4 is a schematic diagram of the channel for passing fish on the platform of the present invention.

detailed description

As shown in Figures 1-4, a fish collection and transportation platform for fish crossing the dam includes a hull platform arranged in the center of the channel downstream of the dam body. A horn-shaped fish inlet 3 is opened at the tail of the hull platform. The entrance of the 3 is connected with a fish guide 2, and the hull platform is provided with a fish passage 10 communicated with the trumpet-shaped fish inlet 3;

Fish luring device, fish driving device and fish transfer device are installed on the hull platform;

In the fish luring device, the fish luring light 1 is installed on the fish guide grid 2, and the two sides of the fish passing channel 10 are equipped with a flow increasing pump 4 and a plurality of rows of uniformly arranged water spray pipes 17 connected with the flow increasing pump 4;

In the fish driving device, the fish blocking net 6 is installed on the hydraulic mechanism 5 with adjustable opening at the tail of the hull platform, and the ventilation pipe 8 and the underwater flashlight belt 7 installed on the river bed are laid along the bottom of the fish blocking net 6;

In the fish transfer device, the electric fish fence 18 is installed on the drag rail 19 in the fish passage 10, the fish transport box 11 is installed on the head of the hull platform, and the channel fish fence 21 is installed near the outlet of the trumpet-shaped fish inlet 3 , the hull platform head is also equipped with the hoisting device 20 that cooperates with transporting fish box 11.

The light color of the fish luring light 1 is the preferred color of the target fish.

On the tube wall side of vent pipe 8 evenly begin to have a plurality of ventilation holes, vent pipe 8 one ends are provided with choke valve, and vent pipe 8 other ends are communicated with the air compressor 9 that is installed on the bank by vent hose.

Monitoring equipment 15 is respectively installed on the fish luring device, the fish driving device and the fish transshipment device.

The hydraulic mechanism 5 with adjustable opening is installed on the platform afterbody, and is hingedly connected with the platform main body.

The hoisting device 20 is located at the head of the fish collecting and transporting platform, and is fixed above the deck by a steel frame. The lifting power is provided by the motor, and the fish box 11 at the head of the platform is lifted by the hook when collecting fish, and put on the fish boat 12.

The monitoring equipment 15 includes an underwater camera and a video display, and the camera is arranged in the trumpet-shaped fish inlet 3 and the platform fish passage 10, and can withstand a certain hydraulic pressure. The monitoring equipment is used for real-time monitoring of the activities of fish schools and the operation of equipment such as the electric fish catching grid 18 in the fish passage 10 .

The center of the river channel downstream of the dam body is the position of the fish collection and transportation platform during normal operation. The platform position can be adjusted appropriately according to the hydrological conditions of the river channel, and is generally located in the slow-flow area of the river channel.

The increasing flow pump 4 is a frequency conversion water pump, which is convenient for adjusting the increasing flow velocity. The fish luring flow rate in the channel depends on the type and size of the target fish.

The working process of the present utility model is as follows:

The hull platform is arranged in a certain water area under the dam, the gate valve of the hydraulic mechanism 5 is opened, and the opening is adjusted so that the fixed fishing net 6 can be extended to both banks of the river. Because the air compressor 9 has a certain noise when the bubble curtain part is in operation, the air compressor room 9 is arranged on the bank, and the air compressor 9 is communicated with the air pipe 8 by a rubber hose. The working time of the fish luring system is generally set in the evening or early morning when the outdoor light is weak. When the fish luring light 1 of the platform is turned on, the fish in the river channel will be attracted by the light and will swim to the vicinity of the platform, and the underwater flash light belt 7 and the ventilation pipe 8 on both sides of the hydraulic mechanism 5 will be turned on to form a strong light and an air bubble curtain to drive them away. The fish barrier makes the fish gather at the trumpet-shaped fish inlet 3, and then turns on the flow increasing pump 4 to adjust the water outlet flow of the water spray pipe 17, so that the flow field of the target fish preference is formed in the fish collection channel, and the fish are lured. Collect through the trumpet-shaped fish inlet 3, and then start the electric fish fence 18, and the electric fish fence 18 moves from the tail of the platform to the head along the drag rails 19 on both sides of the channel, driving the fish to the fish transport box at the tail of the platform 11. Put down the channel fish fence 21 on the side where the fish transport box 11 and the channel run through, lift the fish transport box 11 out through the lifting device 20 on the platform, place it on the fish transport ship 12, transport it to the nearby wharf 13, and pass the highway 14 Transport the fish box 11 to the designated release point in the reservoir area and release it into the river.

In the fish luring system, the light color setting of the first part of the fish luring light can be determined by referring to different fish, and the light intensity can also be determined according to the experimental results in the laboratory or existing research results, which can achieve a good fish luring effect; At present, the research on fish luring is relatively mature, and the water flow rate of fish luring can be determined by referring to the species and body length of the target fish.

In the fish repelling system, the research on fish repelling by bubble screens has been relatively mature abroad, and it is effective and friendly to fish repelling. The cost of fish repelling is low, and there is no interference with the channel operation of the river where it is located; the fish repelling of the strong flash part has been demonstrated in the laboratory, and you can refer to relevant literature for setting.

Different fish have different response behaviors to hydraulic factors, mainly including flow velocity, flow gradient, turbulence, and shear force, and different fish live in different flow layers, that is, water depths, and different water depths have different values of hydraulic factors. When the platform is built, it can be equipped with ballast tanks, and the draft of the platform can be adjusted to realize the adjustment of the hydraulic factors around the platform, so as to realize the trapping effect on specific species of fish.

It is also possible to integrate all equipment into the central control room 16 using circuits, and the data of all cameras is integrated and transmitted to the central control room 16, and can be viewed through a video display, so that the equipment can easily maintain the required working conditions for a long time during operation. The technical difficulty of daily maintenance is small, and there are few requirements for staff, so it is relatively simple.

Claims (4)

1. A kind of 1. transporting something containerized fish platform that dam is crossed for fish, it is characterised in that：Ship including being arranged in dam body downstream river course center Body platform, hull platform afterbody offer horn-like fish inlet（3）, horn-like fish inlet（3）Entrance be connected with and lead fish corral （2）, it is provided with and horn-like fish inlet on hull platform（3）Fish passage is crossed in connection（10）；

   Fish-baiting instrument is installed on hull platform, drive fish device and turns fish transportation equipment；

   In fish-baiting instrument, fish-luring light（1）Installed in leading fish corral（2）On, cross fish passage（10）Both sides are provided with flow increasing pump（4）With with Flow increasing pump（4）Multiple rows of sparge pipe being evenly arranged of connection（17）；

   Drive in fish device, barrier net（6）It is installed on the adjustable hydraulic mechanism of aperture of hull platform afterbody（5）On, along barrier net （6）Lower section is equipped with the breather pipe on riverbed（8）With underwater flashlight band（7）；

   Turn in fish transportation equipment, electronic fish screen（18）It was installed on fish passage（10）Interior dragging track（19）On, fish-carrying tank （11）It is installed on hull head platform, horn-like fish inlet（3）Near exit is provided with passage fish screen（21）, hull platform head Portion is also equipped with and fish-carrying tank（11）The boom hoisting being engaged（20）.
2. 2. the transporting something containerized fish platform according to claim 1 that dam is crossed for fish, it is characterised in that：Fish-luring light（1）It is photochromic For Fish of interest preferred colors.
3. 3. the transporting something containerized fish platform according to claim 1 that dam is crossed for fish, it is characterised in that：Breather pipe（8）Tube wall Multiple passages, breather pipe are uniformly begun with side（8）One end is provided with resistance valve, breather pipe（8）The other end passes through ventilation Flexible pipe and the air compressor machine installed in bank（9）Connection.
4. 4. the transporting something containerized fish platform according to claim 1 that dam is crossed for fish, it is characterised in that：Fish-baiting instrument, drive fish dress Put and turn that monitoring device is respectively installed on fish transportation equipment（15）.