SU975881A1 - Fish-passing lock - Google Patents

Description

The invention relates to hydraulic construction, in particular to fish passages.

The fish gateway is known, the upper output tray of which is formed by two channels connected by a window and equipped with gratings installed with the possibility of reciprocating motion in a vertical plane, one of the channels being an extension of the working chamber (fish collecting tray) and equipped with a motive device mounted for movement perpendicular to the flow, '5

The ichthyological site is located in the adjacent channel. The main disadvantage of this device is its low productivity due to an increase in the cycle time for the operations of filling and emptying the working chamber and the limited flow rates in the fish storage tray 25 during the locking period of the fish.

Also known fish passage gateway, including a tray, with a power supply, a fish tank with a trigger device, a working chamber with their 2

tiological site and side ¹ channel with the shutter £ 2.

A disadvantage of the known device is also low productivity due to the fact that there is a gap in the technological scheme of attracting and accumulating fish, caused by the transfer of fish to the working chamber and its Locking, i.e. in _x this period, the flow of water to the fish store is reduced, and in some cases it is absolutely prekravdaetsya and attracting fish is not performed.

The purpose of the invention is to increase productivity by improving the flow hydraulics in the fish accumulator and increasing the time to attract fish ,.

The goal is achieved by the fact that in the fish gateway, a working chamber with an ichthyological platform is located in the side canal, and the fish store is equipped with a fish retaining grid installed at the end of the tray and an incentive device mounted for movement along the grid.

Moreover, the gateway can be equipped with a grid installed in the working chamber parallel to the bottom and made

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975881

four

in the form of blinds inclined towards the flow.

FIG. 1 shows a top view gateway; in fig. 2 - the same, ’s. the formation of the working chamber between two mutually perpendicular valves; 5 in fig.'Z - a longitudinal section of the working chamber having a louvered grille.

The fish gateway contains a fish store 1, adjacent to the tray Yu with power supply 2, below which the fish retaining grid 3 is located flush with which a window 4 is made in the side wall of the fish store 1, connecting the fish store 1 15 to the adjacent tray 5, where two parallel gates are installed · - bottom 6 and horse 7, forming a working chamber 8. At the top zatzzor 7 in. The working chamber 8 houses an ichthyological platform 9. Tray 5 and the fish store 1 are provided with pushing devices 10 and 11 installed with the possibility of reciprocating movement along tray 5 25

and fish tank 1. In fish tank 1, opposite the window 4, there is an incentive device 12 with possible. reciprocating movement across the fish tank 1. __

In the second version fish pass - ³⁰

2, unlike the first, there is no push device 11, and the working chamber 8 is limited by mutually perpendicular gates 6 and 7, of which the lower 35 gate b is installed in window 4.

In the third embodiment of the fish passage lock (FIG. 3), the working chamber 8 is equipped with a grill 13, which is formed. in the form of blinds inclined towards-40 to the stream and installed parallel to the bottom 14, the Grate 13 is an ichthyological site. On the pressure side of the chamber 8 mounted shutter 7. 45

Works fish passageway as follows.

After a period of attraction, the fish with an incentive device 10 moves along the fish reservoir 1 and is transported into the space enclosed between the fish retaining grid 3, the longitudinal incentive device 10, the transverse incentive device 12 and the window 4. Through the window 4, the accumulated fish __ with the incentive device 12 is transferred to the adjacent Tray 5. A new period of attracting fish to the fish store 1 begins. The incentive device 10 occupies the initial position at the entrance to the fish store 1, At the same time, the incentive device » ! 11 the fish moves to the working chamber 8. The ichthyological site 9 rises, the fish are counted and marked. Downlead 6 is lowered. The working chamber 8 is filled. Horse shutter 7 rises and the fish with the motive device 11 is transferred to the upstream.

In the second version, it is assembled in ¹ space between the fish retaining grid 3, the longitudinal stimulus device 10, the transverse incentive device 12 and the window 4.

the fish is stimulated by device 12 through window 4 is transferred to the working chamber 8. A new period of attracting fish to the fish store 1 begins. The incentive device 10 occupies the initial position at the entrance to the fish store 1. The ichthyological site 9 rises, the fish are counted and tagged. The downstream slide b is lowered. The working chamber 8 is filled. Ride shutter 7 rises, providing free access of fish in the upper reach. Before the end of the attraction mode, the horse shutter 7 is lowered, the working chamber 8 is emptied, the downstream shutter 6 rises and the motive device 12 takes up its original position at the bead opposite the window 4.

The filling of the working chamber 8 according to the third variant of the sluice passage passes through the grate 13, while the upper bolt 7 rises to the level mark of the grate 13. The flow through the grate 13 enters the working chamber 8, filling it to the level of the upstream. When the chamber is emptied. 8, the upper shutter 7 is lowered, and the lower shutter b is raised, allowing water to drain from the working chamber 8.

Such an implementation of the gateway will allow to increase the device performance by 1.5-2.0 times, as well as to ensure the safe exit of fish to the upper pool, reduce the length of the gateway, simplify the design of the power supply and gates and reduce the size of the working chamber due to its filling through the holes in ichthyological site.

The second and third options are recommended to be used when the pressure at the hydroelectric complex is not more than 2.0 m.

Claims (2)

Claim 1. The fish passage gateway, which includes a tray with a power unit, a fish tank with an incentive device, a working chamber with an ichthyological platform and a side channel with a shutter, characterized in that, in order to increase productivity by improving the flow hydraulics in the fish accumulator and increasing the time of attracting fish, a working chamber with an ichthyological site is located 5 975881 6 in the side channel, and the fish tank is equipped with a fish retaining grid installed at the end of the tray, and an incentive device mounted for movement along the grid. 2. Mluse on π. 1, characterized in that it is provided with a grid installed in the working chamber parallel to the bottom and made in the form of blinds inclined towards the flow.