Head of fish conservation works and method of fish attraction

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to constructions and method aimed at passing spawners through support facilities to places of spawning ands fattening. Proposed head of fish conservation works includes supply unit connected with head water by gate installed in bypass culvert, fish attracting device in form of guides installed before intake part of fishway and made in form of horizontally arranged collectors with non-submerged water outlet holes whose central axes are orientated at different angles to water surface. Collectors are connected with end parts of bypass culverts, being installed for rotation relative to intake part of fishway and made in form of pipes used as base of carrying trusses whose vertical support booms are made coaxially with end parts of bypass culverts. Lower parts of booms are made hollow, being connected with inner space of collectors and bypass culverts. Carrying trusses are connected with drive. To attract fish, "sweep" to attract fish is formed at intake of fish conservation works by opening supply unit to preset value, delivering main attraction water over entire depth of flow and additional attraction water to surface horizons of flow and concentration of fish before intake of fish accumulator-trough. Additional attraction of fish is provided from side of water discharge front of diversion unit with subsequent shifting at end of attraction process of additional attraction water to side of longitudinal attraction water to side of longitudinal axis of fish accumulator-trough. Fish getting into zone of action of additional attraction water is entrained and transferred to zone of action of main attraction water. At end of process of attraction, delivery of additional attraction water is stopped, and fish is concentrated before intake of accumulator-trough.

EFFECT: provision of hydraulic conditions to attract fish from large width of waterway.

3 cl, 5 dwg

 

The invention relates to hydraulic construction, namely to fish passage structures designed to pass fish producers through retaining structures for spawning and feeding.

Known head fish passage facility [1], including photocopiers device in the form of a louver system executed on the input side of the tray-ribonucleotides and connected to the drive move truefinish plates.

The disadvantage of this tip is the complexity of the control system planned locations louvered plates.

The closest in technical essence and the achieved result the solution is to head fish passage facility [2], including the power supply, connected with the upper tail gate, installed in the bypass gallery, libprelude device in the form of guides located in front of the entrance part of the tract of fish passage and made in the form of horizontal collectors, having unflooded water outlet hole, a Central axis which is oriented at different angles to the surface of the water, while the collectors are connected to end parts of the bypass galleries.

The disadvantage of this tip is low efficiency due to the lack of effectiveness of attracting fish to the input side of the fish the output path, migrating across the entire width of the stream.

The closest technical solution of the claimed method is a method of attracting fish to the entrance to the fish passage structure [2], consisting in forming on his entrance attracts fish "plume" by opening the power supply to the preset value and supply of primary and secondary attracting expenses fish concentration before entering the tray-ribonuclear.

The disadvantage of this method is the low efficiency of use of other attracting fish stream.

The aim of the invention is the creation of effective hydraulic conditions in the zone of influence of the input cap to attract fish from greater width of the stream.

The invention consists in the following.

Execution collectors with the possibility of rotation relative to the input part of the fish passage tract can increase the effective area of attracting fish, not previously mentioned in attracting a "plume" of velocities generated by the flow coming from the input part of the tract of fish passage. Submission of additional consumption of water in the reservoir creates additional acoustic effect, contributing to the collection of fish immediately before the target entry in the fish passage structure, not giving her the opportunity to get to the spillway of the dam, which also observed the similar situation Xia (the noise of falling water, increased aeration flow). In addition, the implementation of collectors in the form of pipes, which is the basis trusses, allows for the rotation of the farms to move the fish, this time in the zone of influence "of rain, flowing out of the reservoir, and transfer the fish directly in attracting the "loop"formed by the stream input part of the tract of fish passage.

The vertical arrows allows you to have articulated abutment connection and, in addition, the lower part of the hollow arrows allows you to feed the water flow from the bypass galleries in the inner space of the horizontal collectors.

Accommodation (claim 2) on the opposite side from the water outlet holes collectors throughout their length light sources directed to the surface of the water in the night time by creating light paths to increase the efficiency of attracting fish from nearby waters downstream, thereby concentrating migrants directly in front of the entrance part of the tract of fish passage.

The way to attract fish to the entrance to the fish passage facility allows for additional attracting fish with side outlet front of the waterworks by supplying additional water flow in the surface horizons of the thread and then moved to the end of the process of bringing forth the additional flow in the direction of the longitudinal axis of the tray-ribonucleotides, if this likes and translates fish caught in the area attracting additional flow, the zone of influence of the main attracts of flow, and at the end of the process of attracting stop filing attracting additional expense, with all the fish concentrated before entering the tray-ribonuclear.

In General, technological operations and structural characteristics as the main points of the invention and additional item meet the criterion of "significant differences" and are interconnected so that they form a single creative idea.

The solution of this problem is achieved by creating a new cap construction fish passage facility and how it implements, as well as graphical material, are presented on the following figures:

figure 1 - fish passage gateway, the input of which is supplied libprelude device, the plan;

Fig. 2 - section a-a in figure 1;

figure 3 is a longitudinal section through libpreludedb device;

4 is a transverse section of the manifold, the flow attracting the flow on the water surface;

5 is a cross section of a manifold, the work libprelude device in combination with the light sources.

Head fish passage facility includes a power supply unit connected with the upper tail gate (not shown)mounted in obvo the Neu gallery 1, libprelude device in the form of rails 2, which are located in front of the entrance part of the fish passage duct 3 and is made in the form of horizontal collectors 4, with unflooded water outlet hole 5, the Central axis of which is oriented at a different angle to the surface of the water, and the reservoir 4 is connected to end parts of the bypass galleries 1.

Collector 4 mounted for rotation relative to the input part of the fish passage duct 3 and is made in the form of tubes, which is the basis trusses 6, the vertical support shafts 7 which is arranged coaxially with the end parts of the bypass galleries 1. The lower part 8 of the shafts 7 are hollow and are connected to the internal space of the reservoir 4 and bypass galleries 1, while carrying farm 6 is connected with a drive (not shown).

Fish passage tract 3 in the case of fish gateway has grassroots 9 horse 10 the gates of the power supply and communicates with the upper tail through the top of the tray 11. Tract 3 is located between the spans 12 spillway dam.

In addition, farms bearing 6 can be installed light sources 13, placed along the entire length of the reservoir 4 and directed to the surface of the water.

Head fish passage facility works as follows.

Depending on the fisheries situation in the lower bevegelse service manual fish passage gateway opens the slide valves of the upper shutter 10 power supply unit on the calculated value, providing the specified flow rate fish passage in the tract 3, and also effective conditions for the formation of attracting fish “plume” speeds. To improve the efficiency of attracting migratory fish to the input part of the fish passage duct 3 into the reservoir 4, performs the function of the guides 2 libprelude device through a bypass galleries 1 from the upper tail served the additional flow of water through the hollow part 8 of the support shafts 7 flows into the water outlet hole 5. Hydraulic jet flowing out of the holes 5, getting on the water surface create the effect of rain, while the acoustic field they form in the surface horizon of the reservoir layer, saturated with oxygen (figure 5). Installation guide 2 at an angle to the longitudinal axis of the fish pass atracta 3 can significantly extend the zone of influence created attracting fish “loop” speed, which is formed on the background of the hydraulic structure of the flow discharged through the spans 12 spillway dam. At the end of the process of attracting fish service manual by means of a drive (not shown)connected with the shafts 7 trusses 6, slowly rotates the collector 4 in the direction of the longitudinal axis of the fish passage duct 3 to the position parallel to the axis of the structure. This process step is necessary for odvod all attracted fish from the spillway directly in the zone of influence of attracting “plume”, thus all the fish, attracted to the area Peeps, going (supplied) to the entrance to the fish pass tract 3. The feed flow rate in the collector 4 is stopped, so that gathered in front of the entrance channel 3 fish managed to navigate the stream exiting the fish passage facility.

After production of this operation, service manual covers the communication of the shutter 10 to the value, providing the creation of a flow velocity of 0.2-0.3 m/s in the tract of fish passage 3. Then through net fabrics motive device (not shown) stored in tract 3 fish moves into the working chamber formed top 10 and bottom 9 gates, and by known techniques (process flow sheet of fish gateway) is translated into a horse tray 11 and further to the upstream face. At the beginning of a new cycle of attracting fish collector 4 turn, setting it in its original position (at an acute angle to the longitudinal axis of the structure), is used to supply additional outreach consumption and cycle facilities is repeated.

In the twilight and at night to ensure the effectiveness of attracting fish to a building includes the light sources 13, are installed along the entire length of the reservoir 4, is realized in this known method of attracting fish to the generated light field.

The proposed method in the treatment of fish to the entrance to the fish passage facility allows for additional attracting fish with side outlet front waterworks supply additional water flow in the surface horizons flow from the outlet of the collectors 4 installed on farms bearing 6. Before the end of the process of engagement by the actuator (not shown) manifold 4 are rotated about the shafts 7 and transferred to the position "in parallel", with keen and translates fish caught in the area attracting additional expense (previously borrowed from the spillway), the zone of influence of the main attracting stream generated by fish passage channel 3. At the end of the process of attracting stop filing attracting additional flow in the manifold 4, while all the fish are concentrated in front of the entrance of the fish pass tract 3.

The present invention significantly improves the efficiency involving fish and moving in the surface horizons of the watercourse. In addition, the proposed cap allows you to collect and concentrate the fish, attracted by spillway front. When the maximum width of the fish pass highway (pan-ribonucleotides) in 10 meters, since the average length of the reservoir 20 meters, the area of attracting fish in the surface horizons increases from 10 to 50 meters.

Sources of information

1. USSR author's certificate No. 1703781, E 02 In 8/08, BI No. 1, 1992.

2. USSR author's certificate No. 1599468, E 02 In 8/08, BI No. 38, 1990.

1. Head ryboproducer the structures, includes power supply, connected with the upper tail gate, installed in the bypass gallery, libprelude device in the form of guides, mounted in front of the entrance part of the tract of fish passage and made in the form of horizontal collectors, having unflooded water outlet hole, a Central axis which is oriented at different angles to the surface of the water, while the collectors are connected to end parts of the bypass galleries, characterized in that the collectors are mounted for rotation relative to the input part of the tract of fish passage and made in the form of tubes, which is the basis trusses, vertical supporting shafts are coaxial with integral bypass parts of the galleries, and the lower part of the shafts are hollow and are connected to the internal space of the reservoir and bypass galleries, while carrying farm is connected to the drive.

2. Head on p. 1, characterized in that on the opposite side from the water outlet holes of collectors throughout the length of the last installed light sources directed toward the surface of the water.

3. The way to attract fish to the entrance to the fish passage structure consisting in forming on his entrance attracts fish "plume" by opening the power supply to a predetermined value, supply of the main attractive the surrounding flow throughout the depth of flow and attracting additional flow in the surface horizons of the flow and concentration of fish before entry into the tray-ribonuclear, characterized in that the additional attraction of fish is carried out from the side outlet front of the waterworks and then moved to the end of the process of attracting additional flow in the direction of the longitudinal axis of the tray-ribonucleotides, with carry and transfer the fish caught in the area attracting additional flow, the zone of influence of the main attracts of consumption, then at the end of the process of attracting stop filing attracting additional expense, with all the fish are concentrated before entering the tray-ribonuclear.



 

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