Fish protective device of diversion facility

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

 

The invention relates to hydraulic construction, and in particular to methods, structures and devices designed to protect juvenile fish from entering the intake.

Known fish protection device [1], which includes a perforated suction pipe of the pump, located in the source water, water-permeable screen, made in the form of a cone, is coaxially installed on the suction pipe, waterproof partitions, made in the form of truncated cones mounted on the suction pipe and located in the space between the permeable screen and suction pipe along its length, hydrodiuril made in the form of nozzles, positioned along the side forming screen, and a flexible elastic harness, mounted on the annular rails.

The disadvantage of this device is the low efficiency of the protection and diversion of juvenile fish from the zone of influence of the water front, as well as a high percentage of water consumed for the purposes of rebooted.

The closest in technical essence and the achieved result is the protection device [2], which includes a suction nozzle, buried under the water level, water-permeable screen, means for draining fish fry, made in the form of hydroclimates with the annular gap, which is located coaxially with the inlet of the state of the pipe outside of the suction holes, supply line connected to the pressure line of the pump and executed inside a suction pipe, coaxially him and the annular tapered wall made coaxial suction pipe and fixed to the outer surface of the pipe of the suction pipe.

The disadvantage of this protection device is the low efficiency of fish protection due to inefficient process rebootmachine from the suction.

The aim of the invention is to simplify the design and creation of effective conditions for allotment of juvenile fish outside the zone of influence of the suction pipe.

The invention consists in the following.

According to claim 1 of the claims. Formation design hydroclimates in the form of two Cup-shaped vent allows you to form an annular gap for the formation of a hydraulic jet, downstream juvenile fish in the top of the device. The execution of the lower baffle with a Central outlet orifice the diameter of which is smaller than the diameter streammessage nozzle that allows you to trim the part of the flushing flow coming from the inlet pipeline, to supply it through an outlet in the space between the two deflectors. Performing an annular conical baffles installed a large base in the direction of the suction PA is cutting, while its smaller base is located in the plane of the suction opening, allows you to generate ribotti visor. The visor allows you to trim juvenile fish, demolished hydraulic jets generated by hydrosilation from the zone of influence of the suction torch formed suction inlet, and thereby to take her to a safe place. In addition, since the concavity of the upper and lower deflectors different, in the hydraulic jet formed by the annular slit and the inner surface of the lower deflector at different angles of attack along the waterproof screen. Moreover, the flow from the annular gap collides with the main stream, resulting in a lower part of the hydraulic veil is formed hydrodynamic screen, actively deterring juvenile fish. Repellent effect occurs as a result of turbulent pulsations, modulated colliding hydraulic jets.

According to claim 2. Execution end part of a suction pipe extending in the direction of suction holes reduces the average filtration velocity in the initial part of the inlet tube.

According to claim 3 claims. Installation of suction pipe vertically and orientation of its suction inlet in the direction of p the surface water is a variation of the layout of the device, allowing effectively remove suspended sediment. In addition, with this arrangement, during operation of the hydraulic jets juvenile fish is transported in the lower horizon of the stream. In this case, as a rule, juvenile fish, accustomed to dwell on a given horizon in the watercourse moving force in the lower horizon, some time will try to return to the usual for its habitat horizon thread (the manifestation of bargiacchi), and the transit flow in the watercourse juvenile fish will be carried down the stream and leaves the location area of the inlet tube.

According to claim 4 claims. Securing the perimeter of the upper and lower deflectors flexible elastic harness allows you to strengthen repositorium function permeable screen. In addition, when interacting with hydraulic jets of elastic strands form a continuously oscillating screen, which actively discourages active juvenile fish and does not allow passive fish fry to penetrate into the pump suction. The implementation of flexible elastic harness with a length greater than the distance in the light between the edges of the baffles and the suction holes, allows for the active influence of hydraulic jets to form a permeable screen, formed by the location of the wiring harness does not allow their end portions C which take place inside the suction holes.

According to claim 5 claims. Perform upper baffle with the torquing device is a vertical screw partitions allows you to create swirling hydraulic jet fed from the slot. Swirling jet due to the centrifugal component of the velocity vector increases the effect of the diversion of juvenile fish from the zone of influence of the inlet tube and contributes greatly to the confusion fish fry.

6 claims. The implementation of flexible elastic harness from a material with a specific gravity equal to the specific weight of water, can have a less inertial permeable screen. The intensity fluctuations of the wiring harness in this embodiment, is the most high, and hence the degree of the generated rabotepugacheva effect maximum.

According to claim 7 claims. The implementation of flexible elastic harness from a material with a specific gravity greater than the specific weight of water to form more stable permeable screen. The intensity fluctuations of the harness will decrease somewhat, but the stability of the location of the wiring harness will be higher.

The solution of this problem is achieved by creating a new design of fish protection devices. Graphic material explaining the essence of the invention is presented on the following figures the x:

figure 1 - the protection device, a longitudinal section;

figure 2 - the same, an option with an extended suction inlet;

figure 3 - protection device, a longitudinal section of a variant with flexible elastic strands attached around the perimeter of the vent;

4 is a fragment of hydroclimates, embodiment of a permeable screen of flexible resilient wire harnesses;

5 is a fragment of hydroclimates, the structure of the currents that are generated when applying the wash water flow rate;

6 is a fragment of hydroclimates, the variant with the torquing device;

Fig.7 is a view of the inner surface of the upper baffle, the planned placement of the screw partitions;

pig - fish protection device plan.

The protection device includes a suction nozzle 1, buried under the water level, water-permeable screen 2, the means for draining fish fry, made in the form of hydroclimates 3 with the annular gap 4, which is located coaxially with the suction pipe 1 outside of the suction holes 5, the inlet pipe 6 connected to the pressure line of the pump (not shown) and executed inside the suction pipe 1, coaxially him, and the annular tapered wall 7 made coaxial suction nozzle 1 is fixed on the outer surface of the pipe of the suction pipe 1. Hydrodiuril 3 is formed of two is ashabranner deflectors 8, facing the concave side to the intake hole 5, mounted one above the other with the formation of the annular gap 4 is directed along permeable screen 2, the lower deflector 8 is made with a Central outlet opening 9, the diameter of which is smaller than the diameter streammessage nozzle 10, which is located coaxially to hydroclimate 3 and rigidly connected with the end part of the feeding pipe 6, and an annular tapered wall 7 has a large base in the direction of the suction pipe 1, and its lower base is located in the plane of the suction opening 5.

In addition, the end part of the suction pipe 1 can be made extending toward the suction opening 5.

In addition, the suction nozzle 1 can be installed vertically and oriented suction inlet 5 to the surface of the stream.

In addition, the perimeter of the deflector 8 can be fixed flexible flexible wiring 11, while their length is greater than the distance in the light between the edges of the deflectors 8 and the suction holes 5.

In addition, the upper deflector 8 from the inner side may be provided with a twisting device 12.

In addition, the flexible elastic strands 11 may be made of a material with a specific gravity equal to the specific weight of water.

In addition, Flex the e elastic strands 11 may be made of a material of specific gravity greater than the specific weight of water.

The supply line 6 and the deflector 8 is fixed bracket 13 relative to the suction pipe 1.

The protection device operates as follows.

When the pump (not shown) in the suction hole 5 are suction speed and suction pipe 1 enters the design water flow rate. Simultaneously, from the discharge line of the pump (not shown) in the supply line 6 is fed design water flow (approximately 5-7% of the inflowing water consumption for the needs of the consumer), which forms the axisymmetric pressure hydraulic jet, which creates a hydraulic veil in front of permeable screen 2. The main part of the feed flow is distributed along the inner surface of the lower baffle 8, creating the main hydraulic veil in the form of a flat hydraulic jet, its shape resembling an umbrella, with speeds sufficient for forming rabotuolega flow. Part of the flow supplied from streammessage nozzle 10, through the outlet 9, due to the velocity head into the space between the lower and upper deflectors 8, as a result of the slotted ring hole 4 is also formed flat hydraulic jet with the zone of influence of the 360°. Since the concavity of the upper and lower deflec the 8 different Directors, as a result, hydraulic jet formed by the annular gap 4 and the inner surface of the lower baffle 8, under different angles of attack along the waterproof screen 2. The stream from the annular slit 4 at some distance collides with the main stream, formed by the lower deflector 8, resulting in the lower part of the hydraulic veil is formed hydrodynamic screen, actively deterring juvenile fish. Repellent effect occurs as a result of turbulent pulsations, modulated colliding hydraulic jets. Juvenile fish, exhaust hydraulic veil falls along the surface of the conical partition 7 outside the zone of influence of the suction pipe 1 and is discharged in a safe place watercourse.

Possible variant of the device, when the end part of the suction pipe 1 is made extending in the direction of the suction openings 5 (figure 2). This layout allows to reduce the average filtration velocity in the initial part of the inlet tube 1, namely in the input plane of the suction opening 5. This point allows you to improve the efficiency of water-permeable screen 2 and the efficiency of the device as a whole.

Possible variant of the device, when the perimeter of the bottom and top is the first deflector 8 is fixed flexible flexible wiring 11 (3 and 4). Elastic harness 11 enhance repositorium function permeable screen 2. In addition, when interacting with their hydraulic jets flexible wiring 11 is formed continuously oscillating screen 2, which is intensively discourages active juvenile fish and does not allow passive fish fry into the suction nozzle 1. The implementation of flexible elastic harness 11 with a length greater than the distance in the light between the edges of the deflectors 8 and the suction holes 5, allows for the active influence of hydraulic jets to form a permeable screen 2, thus forming the location of the wiring harness 11 does not allow their end portions to take place inside the suction holes 5.

Perform upper baffle 8 with the torquing device 12, for example a vertical screw partitions 12, allows to form a twisted hydraulic jet supplied from the annular slot 4. Twisted flat jet due to the centrifugal component of the velocity vector increases the effect of the diversion of juvenile fish from the zone of influence of the suction pipe 1 and contributes greatly to the confusion fish fry.

Offer fish protection device allows a simple and affordable means to take water, without causing environmental damage resulting is and the pond, and furthermore, the very object of protection of juvenile fish, because design is not mechanical repositoryname screen and other structural elements, traumatic juvenile fish. The use of components repositoriesuses screen - flexible elastic elements - allows you to mimic the natural aquatic vegetation. An advantage of the present invention, it should be noted the successful arrangement of the elements of hydroclimates and tapered walls, allowing to use flat hydraulic jet.

Sources of information

1. AS THE USSR №1641936 (USSR). IPC E 02 In 8/08. "The protection device of the diversion structure". Authors: A.A. Chistyakov, Parulava I.I., Cherkasov, VA and Skin V.N. Publ. B. I. No. 14, 1991.

2. AS THE USSR №1612044 (USSR). IPC E 02 In 8/08. "The protection device of the diversion structure". Authors: Rasulbekov and Aterrima. Publ. 07.12.90. Bull. No. 45.

1. The protection device of the diversion structure, comprising a suction pipe, buried under the water level, water-permeable screen, means for draining fish fry, made in the form of hydroclimates with the annular gap located coaxially suction pipe outside of the suction holes, the supply line connected to the pressure line of the pump and executed inside a suction pipe coaxially him, and the ring to usnow wall, made coaxial suction pipe fixed on the outer surface of the pipe of the suction pipe, characterized in that hydromineral formed by two Cup-shaped deflector facing the concave side to the suction hole, mounted one above the other with the formation of the annular gap is directed along permeable screen, the lower baffle has a Central discharge opening, the diameter of which is smaller than the diameter streammessage nozzle located coaxially to hydroclimate and rigidly connected with the end part of the feeding pipe, and the annular tapered wall mounted large base in the direction of the suction nozzle, and its smaller base is located in the plane of the suction opening.

2. The device under item 1, characterized in that the end part of the suction tube is expanding in the direction of suction holes.

3. The device under item 1 or 2, characterized in that the suction nozzle is mounted vertically and oriented suction inlet to the surface of the stream.

4. The device according to p. 3, characterized in that the perimeter of baffles fixed flexible elastic bands, while their length is greater than the distance in the light between the edges of the vent and suction holes.

5. The mouth of austo according to any one of paragraphs. 1 to 4, characterized in that the upper baffle from the inner side provided with a torquing device.

6. The device according to p. 4, characterized in that the flexible elastic harness is made from a material with a specific gravity equal to the specific weight of water.

7. The device according to p. 4, characterized in that the flexible elastic harness is made from a material with a specific gravity greater than the specific weight of water.



 

Same patents:

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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.

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Fish facility // 2250953

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to fish ladders on hydraulic works designed for flood control. Proposed ladder-type fish facility for hydraulic works with dam, water storage basin and spillway work designed for flood control includes upper head and fish pass duct in form of trough with stepped bottom divided into number of basins by cross partitions with swim-in holes. Fish facility, from side of upper pond of hydraulic works, is provided with trough connecting upper head and minimum water level in water storage basin. Hydraulic works is furnished with pumping plant delivering water along pipeline into upper head of fish facility. Pump is set into operation by turbine supplied with water from water storage basin by water intake device of pumping plant.

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4 dwg

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FIELD: hydraulic engineering; fish protective facilities.

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7 cl, 7 dwg

FIELD: hydraulic engineering.

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5 cl, 2 dwg

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FIELD: hydraulic works.

SUBSTANCE: invention relates to fish conservation works designed to pass fish spawners through retaining facilities to placed of spawning and fattening. Proposed fishway includes fish conduit made in form of channel whose outlet head is connected with upper pond of hydraulic works, and intake head, with lower pond, cross partitions with swim-in holes, and device to regulate water level in fish conduit made in form of additional cross partitions located higher than minimum designed water level in fish conduit. Lower edges of partitions are made parallel to bottom of fish conduit. Device to regulate water level is furnished with system of perforated pipelines connected with compressor which is arranged under lower edges of additional cross partitions being displaced relative to said partitions upstream. Additional cross partitions are made widthwise fish conduit. According to first design version, perforated pipelines are arranged across longitudinal axis of fish conduit, and according to second version, along said axis. Invention provides effective hydraulic conditions in fish owing to possibility of control of operating conditions of fishway and creating conditions for moving bottom fish along fish conduit to upper pond of hydraulic works.

EFFECT: enhanced reliability in operation.

34 cl, 53 dwg

Fish guide facility // 2245426

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to hydraulic works designed to pass fish spawners through retaining facilities to places of spawning and fattening. Proposed fish guide facility contains bottom fish guide sill installed at angle to longitudinal axis of fish pass facility and adjoining intake part of trough-fish storage, device to control longsill current with possibility of changing height mark of upper side by means of drive. Longsill current control device is made in form of shutter, flexible envelope and compressor. Shutter and flexible envelope are arranged in body of bottom sill. Shutter can be displaced vertically by changing volume of flexible envelope located from side of lower end face of shutter.

EFFECT: provision of effective control of longsill current at changes of water level in lower pond of hydraulic works.

12 cl, 13 dwg

Fish pass // 2245425

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to fish pass facilities designed for passing fish spawners through retaining facilities to places of spawning and fattening. Proposed fish pass contains fish conduit connecting lower and upper ponds of hydraulic works made in form of overfall fish through, chambers arranged over length to fish conduit and divided by cross partitions with swim-in holes. Partitions are submerged, and bottom of chambers is made with slope to side of upper pond cross partitions are formed by lower end face part of chamber bottom. Swim-in holes form longitudinal channels made in bottom of chambers and they communicate bottom of above chamber with below chamber of fish pass. Bottom of each chamber can be provided with water inlet hole form side of upper pond overlapped by fish grid and communicating with bottom undersluice whose outlet hole is found before inlet first chamber of fish pass and is overlapped by guide grate.

EFFECT: provision of effective passing of fish along fish conduit.

10 cl, 13 dwg

Fish pass // 2245424

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to hydraulic works designed for passing fish spawners through retaining facilities to places of spawning and fattening. Proposed fish contains fish conduit connecting upper and lower ponds of hydraulic works made in form of trough, perforated partitions installed on vertical axles for turning and displacement widthwise the trough by means of drive relative to cross guides provided with slot for displacement of axles of partitions, and swim-in holes formed by extreme vertical end faces of partitions. Perforated partitions are made symmetrical relative to vertical axles and are installed separately in section line of trough for independent displacement in slots of cross guides. Lower guide is made in trough bottom. Perforated partitions can be made with surface and/or bottom swim-in holes.

EFFECT: effective control of modes of fish passing along fish conduit.

7 cl, 11 dwg

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to constructions and method aimed at passing spawners through support facilities to places of spawning ands fattening. Proposed head of fish conservation works includes supply unit connected with head water by gate installed in bypass culvert, fish attracting device in form of guides installed before intake part of fishway and made in form of horizontally arranged collectors with non-submerged water outlet holes whose central axes are orientated at different angles to water surface. Collectors are connected with end parts of bypass culverts, being installed for rotation relative to intake part of fishway and made in form of pipes used as base of carrying trusses whose vertical support booms are made coaxially with end parts of bypass culverts. Lower parts of booms are made hollow, being connected with inner space of collectors and bypass culverts. Carrying trusses are connected with drive. To attract fish, "sweep" to attract fish is formed at intake of fish conservation works by opening supply unit to preset value, delivering main attraction water over entire depth of flow and additional attraction water to surface horizons of flow and concentration of fish before intake of fish accumulator-trough. Additional attraction of fish is provided from side of water discharge front of diversion unit with subsequent shifting at end of attraction process of additional attraction water to side of longitudinal attraction water to side of longitudinal axis of fish accumulator-trough. Fish getting into zone of action of additional attraction water is entrained and transferred to zone of action of main attraction water. At end of process of attraction, delivery of additional attraction water is stopped, and fish is concentrated before intake of accumulator-trough.

EFFECT: provision of hydraulic conditions to attract fish from large width of waterway.

3 cl, 5 dwg

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