Fish passage-spawning channel

 

The invention relates to hydraulic construction, namely to fish passage structures designed to pass fish producers through retaining structures for spawning and feeding. Fish passage-spawning channel includes a feeding path, made in the form of a channel, the head part which is attached to the upper downstream of the barrage, and the mouth part with the lower water, the elements and enhanced natural roughness, placed on the bottom of the channel along its length, and additional flow paths, a head part which is connected with the water conveyance channel. Estuarine part of the additional flow paths connected to the watercourse downstream, forming a many-headed input cap with Autonomous fish passage routes. The longitudinal axis of the additional flow paths are at different angles to the longitudinal alignment of the watercourse, and the angle values decrease according to the direction of flow of the stream. Water distribution site at the junction of warheads additional flow paths with water conducting path is made with a curved longitudinal septa adjacent to the head parts of the additional flow paths. Input headroom mouth by Castellon in the form of bottom ledge with curvilinear in plan face is convex in the direction of the bed part of the watercourse. The invention provides an effective hydraulic conditions downstream to increase the likelihood of entry of fish into the input end of fish passage-the spawning channel. 2 C.p. f-crystals, 11 ill.

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

Known fish passage-spawning channel [1], including fish passage tract in the form of a channel that connects the head part with the upper tail, and the estuarine portion of the lower tail, and the elements of the enhanced roughness, placed on the bottom of the channel along its length.

The disadvantage of this construction is the low efficiency of attracting demersal fish species in the input stack.

The closest in technical essence and the achieved result is fish passage-spawning channel [2], including water conveyance path, made in the form of a channel, the head part which is attached to the upper downstream of the barrage, and the mouth part with the lower water, the elements and enhanced natural roughness installed on the m channel.

The disadvantage of this construction is the low efficiency of attracting fish, suitable from downstream, because if migrants were not included in the target fish passage-spawning channel, they fall within the zone of influence of the spillway dam hydroelectric and are not the object passes the upstream face.

The aim of the invention is the creation of effective hydraulic conditions downstream to increase the likelihood of entry of fish into the input end of fish passage-spawning channel.

The invention consists in the following.

The connection mouth parts additional flow paths to flow downstream allows to form along the coastline, many-headed input headroom, allowing migratory fish to find the most favorable hydraulic conditions for its sunset fish passage in the tract. If the fish are not caught in the area attract loop, the lower (downstream) of the input cap, it has a high probability to get in filestoremove attracting over because it continues to be in the zone of influence of attracting the flow.

The location of flow paths at different angles to the longitudinal alignment of the watercourse downstream allows to solve the following ZAZ duct with water mass flow;

secondly, with increasing values of the angle (second angle) stream exiting the duct, has the ability to cover a large width of the watercourse and, accordingly, most of the fishery target. However, along the shores of the formed secondary whirlpool for and the process of unseparated flow is disrupted. However, in the formed zones 11 (Fig.2) possible temporary accumulation of fish, where she has the opportunity to relax and regain their energy costs. The last flow path (maximum angle) creates a zone with a maximum width relative to the width of photodoto in this section and, accordingly, allows you to draw from the bed of the river;

thirdly, the work input headroom can be organized according to the following scheme. The minimum average velocity of flow at the lower, downstream end, and the maximum duct with a maximum angle to the longitudinal alignment of the watercourse. This scheme allows to implement a phased attract fish along the shoreline in the zone of influence of the input headroom and thereby provide the possibility of choosing the fish most favorable hydraulic conditions for its sunset fish passage in the tract (water conveyance Tr is s tracts with water conveyance path, with a curved longitudinal septa adjacent to the head parts of the additional flow paths, allows to provide a more uniform distribution of the flow rate of water supply path for additional flow paths. Partitions perform which action in place of dividing the stream into three separate flow. Moreover, due to the work of the bend formed before the water distribution site (Fig.1), almost all of the sediment will fall in a flow path with a maximum angle relative to the longitudinal alignment of the watercourse, which in turn increases the likelihood of nenanesenie sediments of two other additional flow paths.

To improve the hydraulic conditions in the zone of influence of the input headroom contributes device ribeyrolles devices in the form of bottom ledges made from the shoreline and adjacent to the input end walls of flow paths (Fig.8. 9, 10 and 11). In this case, the geometric boundaries of the stream exiting the duct, have a more stable position in relation to the transit flow of the watercourse. Virtually the entire flow of the duct is involved in the formation of attracting fish plume velocities, any face of the bottom ledge is sustainable tactile reference point to move along it demersal fish species (e.g., sturgeon) to the entrance of the flow path. On the other hand, the polygonal cross section of flow in the zone of influence of the input headroom (Fig.9, 10 and 11) forms a favorable hydraulic conditions for the promotion of fish, and also facilitates the efficient transport of sediment downstream beyond attracting fish stream.

Curved in plan, the shape of the bottom ledges and run them side by a bulge in the side of the bed part of the watercourse in full conducive as Ribaritsa and nanotransporters their functions.

In General, the constituent elements of the main point of the invention 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 design fish pass channel, as well as graphical material, are presented on the following figures:

Fig.1 - fish passage-spawning channel plan;

Fig.2 - fish passage-spawning channel formed hydraulic flow structure downstream of the plan;

Fig.3 - section I-I in Fig.2, of trapezoidal cross-section channel with elements of enhanced roughness;

Fig.4 - section II-II in Fig.5 - section III-III in Fig.2, the polygonal cross section of the channel (channel-floodplain) with elements of enhanced roughness;

Fig.6 - node I in Fig.1, the water distribution site;

Fig.7 - section IV-IV in Fig.6, the cross section of the channel in the setup of the longitudinal partitions;

Fig.8 - the many-headed input cap with a bottom curved edges and forming a hydraulic flow structure plan;

Fig.9 - section V-V in Fig.8;

Fig.10 - section VI-VI in Fig.8;

Fig.11 is a cross section VII-VII in Fig.8.

Fish passage-spawning channel includes a feeding path 1 made in the form of a channel, the head portion 2 which is connected to the upper downstream of the barrage, and the mouth part 3 - bottom downstream elements enhanced 4 and 5 natural roughness, placed on the bottom of the channel along its length, additional flow paths 6, a head part which is connected with the water conveyance channel 1. Mouth part 3 additional flow paths 6 are connected with the flow 7 downstream, forming a many-headed input cap with Autonomous fish passage routes, with the longitudinal axis of the additional flow paths 6 are located at different angles to the longitudinal transect of the stream 7, and the angle values are reduced by extending roochnik tracts 6 with water conveyance channel 1, can be made with a curvilinear longitudinal partition 9, adjacent to the head parts of the additional flow paths 6.

Input headroom mouth 3 parts additional flow paths 6 from the shoreline of the stream 7 is made with ribeyrolles device in the form of bottom ledge 10 with curvilinear in plan, a face which is convex toward the bed part of the watercourse 7.

Fish passage-spawning channel works as follows.

Attracting fish from the downstream of the mouth portion 3 additional flow channels 6 fish passage-the spawning channel is performed by applying the flow from the upper and downstream of the regulator head part 2 water conveyance route 1 and its distribution in the water distribution node 8 for the 6 paths. Migratory fish, suitable from downstream, created in response to hydraulic conditions, falls within the zone of influence of attracting "plume" and begins to actively move to one of the input headroom mouth parts 3 flow paths 6. If the hydraulic conditions at the bottom, the flow, the input tip 3 is not conducive to go to him fish, it is moving upstream, has the ability to get the that, and between the second and first end walls 3, the fish has the possibility of temporary rest and restore its energy capacity, while not leaving the area adjacent to the stream.

Estuarine part 3 is placed so that the upstream attracting fish “train” speed (active area) were in the zone of influence of downstream attracting fish “plume” speeds. Such a layout of the input headroom 3 flow paths 6 allows you to create a continuous attraction of fish along the entire zone of influence of the many-headed input tip fish passage-the spawning channel. The maximum distribution efficiency involving fish flow facilitates the placement of additional flow paths 6 different angles relative to the longitudinal alignment of the watercourse 7, and1<2<3(Fig, 2). For example, possible that the values of the angles that are flow paths 6, will be:1=11°,2=33°,3=55°.

Fish, coming into one of the flow ducts 6, has the ability to spawn, as the x horizons flow (Fig.3, 4 and 5). When conditions for spawning are not satisfied with migrants, they have the opportunity to promote additional tracts 6, up water conveyance route 1 and exit at the upstream face of the waterworks.

To improve the hydraulic conditions in the zone of influence of the input headroom contributes device ribeyrolles devices in the form of bottom ledges 10, made from the shoreline and adjacent to the input end walls of flow paths 6 (Fig.8, 9, 10 and 11). In this case, the geometric boundaries of the stream exiting the duct 6, have a more stable position in relation to the transit flow of the stream 7. Virtually the entire flow of the duct 6 is involved in the formation of attracting fish plume velocities, and only a small part of it spreads over a horizontal bottom shelf of the shelf 10. At the same time, the curved face of the bottom ledge 10 is sustainable tactile reference point to move along it demersal fish species (e.g. sturgeon) to the entrance of the flow path 6. On the other hand, the polygonal cross section of the stream 7 in the zone of influence of the input headroom (Fig.9, 10 and 11) forms a favorable hydraulic conditions for the promotion of fish, and also contributes to effektivnaya, in plan, the shape of the bottom ledges 10 and run them side by a bulge in the side of the bed part of the watercourse 7 in full conducive as Ribaritsa and nanotransporters their functions.

Sources of information

1. Evidence of the Russian Federation for useful model No. 13806, E 02 In 8/08, 2000.

2. USSR author's certificate No. 1666633, E 02 In 8/08, 1991.

Claims

1. Fish passage-spawning channel, including water conveyance path, made in the form of a channel, the head part which is attached to the upper downstream of the barrage, and the mouth part with the lower water, the elements and enhanced natural roughness, placed on the bottom of the channel along its length, and additional flow paths, a head part which is connected with the water conveyance system, wherein the estuarine part of the additional flow paths connected to the watercourse downstream, forming a many-headed input cap with Autonomous fish passage routes, with the longitudinal axis of the additional flow paths are at different angles to the longitudinal alignment of the watercourse, and angle values decrease according to the direction of flow of the stream.

2. Fish passage-spawning channel on p. 1, wherein Depravadas tract is made with a curved longitudinal septa, adjacent to the head parts of the additional flow paths.

3. Fish passage-spawning channel under item 1, characterized in that the input headroom mouth parts additional flow paths from the shoreline of the watercourse made with ribeyrolles device in the form of bottom ledge with curvilinear in plan face which is convex toward the bed part of the watercourse.

 

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