SU914708A1 - Fish-passing lock - Google Patents

Description

The invention relates to hydraulic engineering, and in particular to devices for passing fish from one side of a hydraulic structure to another. ·

Known fish passages, including. fish tank, working chamber ,. horse output tray, power supply, ichthyological device, an incentive device and valves [13.

Also known fish gateway, which includes a fish tank, a working chamber with ichthyological site, riding tray, lower, upper and sluice gates, an incentive device with a trolley [2).

A disadvantage of the known devices is the low efficiency of diversion of fish to the upstream due to the impossibility of creating an optimal hydraulic flow in the upper tray and low throughput of the structure due to the length of the fish-out period from the working chamber.

Nel of the invention - improving the efficiency of diverting fish to the upstream and increasing the capacity of the gateway.

The goal is achieved by the fact that the gateway is equipped with a horizontal partition installed in the upper tray, and the upper gate is made of two parts, the upper part of which is connected with the base with a horizontal partition, protém the lower part of the high gate is made with adjustable holes, and the motive device is placed in the slots of the trolley with possibility of vertical movement simultaneously with the ichthyological site.

On fig. 1 shows a fish gateway, a longitudinal section; in fig. 2 - the same, top view.

The fish gateway includes a fish storage device 1, a working chamber 2, upper lower 3 and upper 4 closures, an ichthyological platform 5 with mesh screen 6 mounted in guides 7, which are mounted on

E 914708 4

the trolley 8 of the motive device 9. The horizontal partition 10 divides the riding tray 11 into two parts: the lower 12 and the upper 13. The lower shutter 3 is made with water outlets $ 14 and the fish barrier 15. Between the fish tank 1 and the working chamber 2 there is a lower shutter 16, and in the working chamber 2, a niche 17 is made to house the ichthyological area, 0 and 5.

The fish gateway works as follows.

When the base shutter is raised 16

* ·

through the holes 14 of the shutter 3 into the fish-15 drive 1, the flow of water attracting the fish is fed. At the same time, ichthyology site 5 is located in niche 17, and an incentive device 9 with a raised net 6 is 20 at the entrance to the fish store 1. At the end of the fish accumulation cycle, the net 6 is lowered and the cart 8 moves into the working chamber 2. Downstream gate 16 the working chamber 2 is lowered and filled with water. When leveling the water level in the working chamber 2 with the level of the upstream, the ichthyological site 5 rises along with the mesh screen 6 to a level that ensures the normal operation of fish metering. After taking into account the fish, the ichthyological site 5 is installed at the level of the horizontal, partition 10, the upper shutter 4 opens and the fish 35 is transferred to the upper tray 13. After the fish is removed from the working chamber 2, the shutter 4 closes and the incentive device 9 is moved to its original position, the shutter 16 opens and a new work cycle begins.

The use of the invention allows to improve the passage of fish in the upper

pond by autonomy of tray 13, in which it is possible to create optimal hydraulic conditions for moving fish regardless of water flow to create an incentive flow, and also to shorten the cycle of operation of the device by reducing the ichthyological lowering time, the site is not up to a niche during the fish production period, but only horizontal septum.

Claims (3)

Claim 1. Fish pass, gateway, including fish store, working chamber with ichthyological platform, riding tray, downstream, riding and sluice gates, incentive device with a trolley, characterized in that, in order to increase the efficiency of diverting fish to the upstream and increase the capacity of the gateway, it is equipped with a horizontal partition installed in the overhead tray, and the upper gate is made of two parts, the upper of which is connected with the base with a horizontal partition. 2. Gateway on π. 1, about tl and h and y - The fact that the lower part of the upper gate is made with water regulated openings. 3. Gateway on π. 1, that is, the skinny ’is that the motive device is placed in the slots of the trolley with the possibility of vertical movement simultaneously with the ichthyological site.