(57) Abstract:The invention relates to hydraulic engineering and is intended for water in the Piedmont and mountain sections of rivers. Dam water contains water-intake device channel, the washing device for flushing sediment sediment circulating threshold, regulatory spur, pocket water intake device, formed by a spur of the receiving device and the shore of the river before the water intake device, and the river at the water intake device. The washing device is made at the end of the pocket to the receiving device and provided with a spur parallel to the river for water-intake device. Berm spur of the water intake device is made at the level level of water in the pocket at the maximum design flow channel during low-water period expenses river. Berm spurs washing device is made at the top level of the recipient device. The invention provides a decrease in the amount of sediment entering the channel to the receiving device. 1 Il. The invention relates to the field of hydraulic engineering, namely water intake structures on the foothill and mountain areas of the rivers.Known dam water containing in is nnow spur, pocket water intake device, formed by a spur of the diversion structure and the shore of the river, and fastening the shore at the water intake device /1/.The disadvantage of this dam intake is the increase in bottom and suspended sediment supplied to the receiving device, with the increase of water in the river and a simultaneous increase in their deposits for proryvnym device, deteriorating the quality of his work.The task for the decision of the invention is to reduce the inflow of sediment into the pocket of the receiving device while increasing the efficiency of flushing their deposits for proryvnym device.The aim of the invention is to increase the reliability of the water intake device by reducing the amount of sediment flowing into its channel.This goal is achieved by the fact that the dam water containing water-intake device channel, the washing device for flushing sediment sediment circulating threshold, regulatory spur, pocket water intake device, formed by a spur of the receiving device and the shore of the river before the water intake device, and verstraete, equipped with a spur parallel to the river for water intake device, and berm spur of the water intake device is made at the level level of water in the pocket at the maximum design flow channel during low-water period expenditure of the river, and berm spurs washing device is made at the top level of the recipient device.The technical result is ensured by the overflow of the upper layers of water in the pocket of the receiving device through the berm his spurs with increasing water flow in the river. The level of water in the pocket increases, reducing the ingress of water saturated sediments through the input section of the pocket, and through the washing device is reset clarified water with high nanotransporters capacity that erosion of previously deposited sediments. At the same time this site does not come silt-Laden water from the river below the area of the water intake device.The drawing shows the dam water intake.Dam water intake on the river 1 consists of a water intake device 2 to channel 3, the washing device 4 with the circulation threshold 5, regulation spurs 6, pocket 7 to the receiving device the Rega 10 river at the water intake device 2, spurs 11 washing device 4, and a spur 8 is a berm 12 and spur 11 - berm 13.Dam intake works as follows.Fence maximum design flow of the receiving device 2 at low costs rivers 1 provides regulatory spur 6 and the spur 8 to the receiving device 2, creating a pocket 7 to the receiving device 2 horizon to ensure the delivery of design water flow rate to the receiving device 2 and channel 3. Placement of berm 12 spurs 8 to the receiving device 2 at the level level of water in the pocket 7 to the receiving device 2 prevents the loss of water from the pocket 7 to the receiving device 2 at low levels of water in the river 1.With increasing water flow in the river 1 begins sediment transport and their admission into the pocket 7 to the receiving device 2, where they settle for the circulation threshold of 5 and are carried away in the lower reach dam intake opening holes washing device 4, partially settling on the way due to the reduction of the flow velocity when flowing over proryvnym device 4.With further increases in water flow in the river 1 below regulatory spurs 6, the water level becomes higher berniem consumption, taken away from a river 1. Simultaneously with the reduction of the flow in the inlet section of the pocket 7 is reduced, the amount of inflowing sediment. On the other hand through the spur 8 is poured clarified water, and increasing the capacity of the leaching device 4 increases the flow velocity at the approach to circulation threshold of 5, increasing the transport of the trapped sediment. At the same time decreases their concentration, because through spur 8 shimmer top most pure water layers of the river 1.Reduced sediment loads in the water discharged through the washing device 4 enables its transport between the coast 10 and the spur 11 washing device 4, which also contributes to increased water velocity for proryvnym device 4, since it is determined by the water level in the river 1 at the end of the spurs 11 washing device 4, and not at the beginning in the area of its contiguity to promiseme device 4.To prevent overflow of water from the river 1 through the berm 13 spurs 11 washing device 4 suits on the top level of the water intake device defined reliable operation of the dam water intake until the flood of settlement security.Sources INF,, Fig. 11.5 (prototype). Dam water containing water-intake device channel, the washing device for flushing sediment sediment circulating threshold, regulatory spur, pocket water intake device, formed by a spur of the receiving device and the shore of the river before the water intake device, the shore of the river at the water intake device, characterized in that the washing device is made at the end of the pocket to the receiving device and provided with a spur parallel to the shore for the receiving device, and the berm spur of the water intake device is made at the level level of water in the pocket at the maximum design flow channel during low-water period expenditure of the river, and berm spurs washing device is made at the top level of the recipient device.
FIELD: hydraulic structures, particularly fish passes in water-intake structures.
SUBSTANCE: method involves supplying water stream free of young fish in waterway; forming hydraulic screen near water-intake influence area to separate above area from main stream of water-intake structure; forming whirlpool area near water-intake shore edge. Water stream is formed upstream water-intake structure. Water for users is taken from whirlpool area formed by inner water spray boundary and shore edge. Facility includes water-intake structure arranged at shore line, water-intake pipes connected with pump, stream former and means for water stream creation in waterway. Means for water stream creation is made as channel operating in non-pressure regime and having outlet part arranged upstream water inlet. Marks formed on channel bottom and waterway bottom coincide one with another. Stream former is located downstream water intake and directed in downstream direction.
EFFECT: creating of hydraulic conditions to protect young fish from ingress in water-intake structure.
14 cl, 9 dwg
FIELD: hydraulic engineering.
SUBSTANCE: invention relates to hydraulic works designed for preventing getting of young fish into diversion facilities. Proposed device contains fish retaining shield made in form of hollow guides arranged in tiers across water channels in depth with displacement of each upper tier towards diversion channel. It contains also perforated air duct located on bottom of water channel directly before said shield and train-and-fish trough arranged in upper part of channel in parallel with air duct and connected with outlet and device to let out young fish arranged in height of fish retaining shield. Guides of U-shaped are installed at angle to current of intake channel, their planes are perforated and open end part is pointed to bottom of water channel. Young fish let out device is made in form of perforated shields installed side guides for vertical displacement by drive in height of fish retaining shield relative to additional guides made from side of bank edges of intake channel. Perforation holes of shields and u-shaped guides do not coincide in light.
EFFECT: possibility of retaining and bringing young fish out of limits of influence of diversion facility.
FIELD: hydraulic engineering.
SUBSTANCE: invention relates to hydraulic works designed to protect young fish from getting into diversion facilities. Proposed device contains fish retaining shield installed in channel and made in form of perforated pipelines arranged in horizontal tiers along entire depth of channel and connected with source of working medium, perforated air duct placed on bottom of channel directly before shield and trash-and-fish trough arranged in upper part of shield parallel to perforated pipeline and air duct which is connected with fish outlet. Perforated pipelines are furnished with ejectors and fish gathering troughs. Ejectors are connected with pressure line of pump and are placed inside perforated pipelines and in communication with fish gathering troughs through perforation holes made in horizontal plane along both sides of pipelines, fish gathering troughs being rigidly fastened opposite to perforation holes. Inner space of fish gathering troughs is provided with longitudinal horizontal partitions dividing the troughs into separate fish intake parts. Surfaces of fish gathering troughs pointed to surface and to bottom of water channel are made perforated. Cross partitions found inside separate fish intake parts form fish intake channels. Initial part of fish outlet is made with fish intake pocket over entire depth of water channel. End face parts of perforated pipelines pointed to side of fish outlet communicate with inner space of pocket.
EFFECT: provision of retaining and removing of young fish over entire depth of water channel.
3 cl, 7 dwg
FIELD: hydraulic engineering.
SUBSTANCE: invention relates to hydraulic works designed to protect young fish from getting into diversion facilities. Proposed device contains fish retaining shield installed in water channel in tiers in depth of water channel with displacement of each higher tier to side of water intake channel, perforated air duct made in form of guides installed across water channel before shield on bottom of water channel, and trash-and-fish trough connected with fish outlet and arranged in upper part of shield parallel to air duct. Guides are made in form of flat plates rigidly installed at angle to flow in intake channel. Each plate is provided with horizontal axle in its upper part on which additional plate is secured from side of water intake channel for turning. Lower end face end of additional plate is provided with radial baffle whose surface has perforation holes. End face part of additional plates is provided with sector stopper from side of fish outlet, horizontal axles of plates being connected with drive. Additional plates can be perforated.
EFFECT: provision of retaining and bringing young fish out of the limits of influence of diversion facility.
3 cl, 12 dwg
FIELD: hydraulic engineering; fish protective facilities.
SUBSTANCE: invention is designed to draw off young fish from zone of influence of water diversion front. Method comes to ejecting young fish into intake part of ejecting plant from section of pond with higher concentration of young fish, creating active ejecting working stream in mixing chamber by entraining volume of water containing young fish into stream created by central ejecting hydraulic jet and further conveyance of water-fish mixture along pressure conduit into fish outlet. At the last stage of conveyance young fish is transported into fish outlet under no pressure conditions by forming hydraulic jet angle to trough of fish outlet, young fish being dropped on surface of fish outlet stream. Invention provides effective conditions for drawing off young fish into fish outlet and reduces damage to young fish. If working ejecting stream is preliminarily saturated with atmospheric air, its outer borders are saturated with air in form of finest microbubbles which form boundary layer ("air cushion") at contact with which young fish do not suffer from discomfort and easily take up hydrodynamic pressure built in mixing chamber. Moreover, provision of boundary layer saturated with microbubbles of air makes it possible to considerably reduce value of friction coupling of two streams, main getting from working nozzle and ejecting, containing young fish.
EFFECT: provision of good conditions for letting out young fish into fish outlet, reduced damage of young fish.
7 cl, 7 dwg
FIELD: hydraulic engineering.
SUBSTANCE: invention relates to devices protecting young fish and preventing their getting into diversion facility. Proposed fish protective facility includes filtering water-separating dam made in form of vertical water-separating wall arranged along water intake channel and separating inlet part of channel from water conduit, device for preliminary drawing off young fish made in form of vertical rod installed for rotation by drive arranged before water-separating wall from its end face part pointed opposite to water flow. Rod is displaced relative to water-separating wall towards water intake channel. Device for preliminary drawing off young fish is furnished with additional means to increase fish draw-off effect, said means being made in from of flat round disks rigidly secured in height of rod coaxially with rod. Disks are installed parallel to each other forming slot water intake channels. End face part of water-separating wall adjoining the rod is provided with slots located opposite to planes of arrangement of disks. Disks are installed for free passing relative to slots. Invention provides higher efficiency of drawing off young fish out limits of zone of influence of diversion facility owing to provision of disks considerably increasing area of contact with surrounding medium and creating powerful circulation flow providing diversion of young fish and trash entrained by water behind outer surface of dam.
EFFECT: provision of effective conditions for drawing off young fish out of limits of zone of influence of diversion facility.
15 cl, 16 dwg
FIELD: hydraulic engineering.
SUBSTANCE: invention relates to fish protective facilities used in diversion facilities. Proposed fish protective facility includes vertical gauze shield installed in inlet part of water intake channel at angle to its longitudinal axis, fish outlet arranged in place of mating of shield with side of channel, and device for creating whirlpool current for washing the shield containing jet guide member and made in form of chambers adjoining outer surface of shield and forming water intake holes over entire depth of water intake channel. Chambers are made cylindrical being formed by surface of shield and jet guide member and are placed in communication through water intake holes formed by edges of shield of adjacent chambers and edges of jet guide members at place of their butt joining. Each chamber is provided with independent fish outlet made in form of vertical perforated pipe arranged coaxially to chamber and communicating by independent fish duct with fish outlet. Inlet part of water intake channel is made with tangential inlet, edge of left side of channel, shield and tangential inlet are arranged in one plane.
EFFECT: improved efficiency of washing of gauze shield and drawing off young fish and trash.
24 cl, 18 dwg
FIELD: hydraulic structures, particularly fish-passing devices included in water intake structures.
SUBSTANCE: method is based on young fish's tendency to follow moving objects. Method involves forming water permeable screen including flexible elastic members and extending for the full stream depth; providing means for flexible members displacement and installation in working position; providing preliminary young fish concentration in previously created artificial water-plants and transferring young fish into fish-passing channel. Water permeable screen is formed of flexible elastic members on level of stream carrying young fish with maximal concentration. Screen is created in horizontal plane, wherein flexible elastic members are reciprocated from one bank to another along with directing young fish concentrated inside screen in fish-passing channel. Flexible elastic members imitate natural water flora, which is native fish habitat.
EFFECT: provision of controllable water intake during change in vertical young fish descent dynamics.
27 cl, 21 dwg
FIELD: hydraulic engineering.
SUBSTANCE: invention relates to device designed to prevent young fish from getting into diversion facilities. Proposed fish protective device includes suction branch pipe lowered under water level, water permeable shield, device to bring young fish off made in from of hydraulic wash-away device with slot arranged coaxially with suction branch pipe out of the limits of suction hole, feed pipeline connected with pressure line of pump and made inside suction branch pipe coaxially with the latter, and ring conical partition made coaxially to suction branch pipe and rigidly secured on outer surface of suction branch pipe. Hydraulic wash-away device is formed by two cup-like deflectors with concave side pointed to suction hole and installed one over the other to form ring slot directed along water permeable shield. Lower deflector is provided with central outlet hole whose diameter is smaller than diameter of jet forming nozzle arranged coaxially to hydraulic wash-away device and rigidly connected with end part of feed pipeline. Ring conical partition is installed with its larger base to side of suction branch pipe, its smaller base being arranged in plane of suction hole.
EFFECT: simplified design of fish [protective device, provision of effective bringing young fish of limits of influence of suction branch pipe.
7 cl, 8 dwg
FIELD: hydraulic engineering and water supply.
SUBSTANCE: invention is designed to prevent getting of young fish into diversion at water supply of objects from fishery rivers. Proposed water intake has massive head with crushed stone or stone cushioning layer, filtering cassettes on water intake hole with filtering charge, water intake bell connected with gravity or siphon water conduit. Charge of filtering cassettes is floating, made of different-diameter ball elements of positive fall diameter. Racks are installed in upper and lower parts of filtering cassettes horizontally. Distance between bars of racks is less than diameter of ball elements of floating filtering charge. Distance between upper and lower racks is 30-40% greater than thickness of charge layer which should be not less than 400 mm. Protection is provided by scaring young fish at active movement of ball elements of floating filtering charge in cassettes between upper and lower racks at hydrodynamic action of flow of water getting into water intake, and owing to mechanical prevention of getting of young fish into charge.
EFFECT: improved reliability of water intake in operation, reduced energy consumption at back flushing.