SU30623A1 - Fishboat at the dam - Google Patents

Description

The proposed fish pass is designed to move fish going upstream through a dam using mechanical lifts and special barriers that direct the fish to the lifts.

In FIG. 1 shows a river plan with a fish pass at a dam; FIG. 2 - vertical section along the rivers; vertical section of the downstream pipe with installed inclined nets; FIG. lift; FIG. 5 is a vertical section of it along the ASGDjEF Line in FIG. four; FIG. 6-vertical section of the receiver (bucket); FIG. 7 - view from the downstream side to the guide barriers.

Lower PLETIN; in a small distance from it, an underwater threshold is arranged with a mark of the top below the freeze-up horizon at lower levels (Fig.);

This threshold has the construction indicated in FIG. 3, namely the concrete body, in the form of an open pipe D. The open part of its AB is facing downstream and serves as an entrance for fish. The vertical wall OD has a cavity with light windows open to the side of the pipe, located through 5-6 l €, some

91.

placed light sources C, for example, light bulbs (Fig. T). To be able to install them, there is a metal cable with an electrical cable attached to it. The ends of the cable go out to the beers, from here, with the help of the Winch, the cable can be moved along the camera, and the lamps placed at a distance equal to the distance between the windows can be precisely set in their places. The condition of the lamps is checked by extending the cable to one of the banks.

Pipe D, ending at the point L of the lifting point, the vertical pipe K (Fig. 5), installed next to it, receives water from the upstream, which maintains a continuous flow in the pipe. The counterpipes in the elevation walls (Fig. 1) at points a have Windows for the light sources C (Fig. 5). Lodjevshik consists of two mines E, dividing the 1st by a blank wall (Fig. 4 and 5); each of the mines at the lower end, i.e., | against the pipe, provided with a hole with a vertically moving shield 5. Inside the hoist there is a metal hollowed receiver T lowered by the top edge to the level of the bottom of the elevator. One of the walls t of the receiver

t

(Fig. 6), RTC {at the time of the highest lift to release fish directly into the channel.

For the best direction of the fish to the receiver, there are metal nets fixed at one end at point A (Fig. 3), and at the other end attached to the cable Q, crossed over the river and supported by floats P (Fig. 7). The nets are arranged in such a way that the lower ends of the lateral branches of the net converge at adjacent sites, and there is an open passage above: for fish going from above (i.e., through the dam).

The effect of the fish passage is as follows. The fish, straddling up the river, is netted into pipe D; Moving toward the light and falling into a zone of comparatively quiet, it will tend to move along the pipe. After reaching the section L /, the fish will meet the flow of water going through pipe A, and, going to the net, will get into the lift. 6 then in | rem, when shield 5 in one shaft rises; in the other he is omitted. Then the open mine is closed, the receiver T, which is 11p1 in it, rises to the top. Upon reaching the top point, the hooks R (Fig. 6), located at the bottom of the receiver, abut against the projections of the side walls, as a result of which the receiver is delayed, and the rope that continues to be pulled up lifts its free side and gives it a tilt. side of the channel, and its contents ejected. Then there is a lowering of the reception 11) 1ka and the opening of the shield S of the elevator. Next, the second shaft is closed and the bucket is lifted in it, etc. Thanks to the presence of two mines, the fish pass is uninterrupted, and their combined actions should be automated and performed mechanically. As stated above, one end of the networks is attached to the pipe. The other; - To the rope thrown across the river, rest: earth on the floats. When offensive

In winter, floats are removed from the river and the cable is loosened, which can be achieved by diving nets below the lower surface of the ice. The same way the network will be protected from ice drift. For continuous flushing of the pipe during settling of the turbidity in it, small bottom openings O (Fig. 3) are left, through which the flowing water will freely flow.

The fish-walker structure described above is arranged at such a distance (upstream) from the outlets of the turbines of the hydropower stations so that the backwater created by the fish-walkway does not affect their operation.

The subject matter of the invention.

Claims (4)

1. A fish farmer at a dam, characterized in that receivers T, which are alternately lowered and raised in vertical shafts, each of which has a fish passage hole in the lower reach, are used to capture downstream river going upstream along the river. , equipped, for the purpose of their alternate closing during the time of the receivers, with sleeves S. 2 In the case of a run in accordance with claim 1, use a water pipe pipe K intended to supply water from the upstream to the bottom of the mines E to create a flow in the holes with the attraction of fish to the mines; , 3. When fishing in accordance with paragraphs. 1-2 use, for the purpose of directing the passage into the shafts, of the pipe Z, the side open from the opposite dam, laid at the bottom of the lower reach and leading into the holes of the shafts and to which one end of the inclined guide nets are attached, the other end of which is fixed on the floats P. . 4. When fishing in accordance with paragraphs. 1, 2 and 3 use, for the purpose of fish loading, light sources C installed in the pipe, D and in mines. Fi..4  .-five