Diversion facility fish protection device

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

 

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], including repositoryname screen installed across the stream and formed from strings stretched across perforated ducts arranged in tiers on the depth of the stream, offset upstream tier in the direction of the intake channel.

The disadvantage of this protection device is the low efficiency of fish protection.

The closest in technical essence and the achieved result is the protection device [2], including specified in the watercourse repositoryname screen, made in the form of horizontal layers throughout the depth of flow perforated pipes connected with a source of working environment, perforated duct, located at the bottom of the watercourse immediately before repositorium a screen connected to a source of compressed air, placed in the upper part of the screen parallel to the perforated piping and duct motorolamotorola tray, coupled with rubottom.

The disadvantage of this device is the low efficiency of the protection and diversion of young people and fish at the depth of the stream.

The aim of the invention is the creation of effective conditions for detention and diversion of juvenile fish throughout the depth of the stream.

The invention consists in the following.

According to claim 1 of the claims. Supply of perforated pipe ejectors and rybovodnymi trays allows to solve previously unsolvable task - allocation of juvenile fish in the depth of the watercourse traversing torch air-bubble curtains (O.S.). According to some authors (Dmitry Pavlov, Amipforum, Lpprecip, Waseco, Paichai and others) efficiency O.S. ranges from 57 to 82% and depends on several factors - the size setiausaha juveniles, its type, stage of its development, time of day, the concentration of juveniles in water volume, water temperature, speed of transit, etc. using an integrated approach - active-passive rise of juvenile O.S. in the upper horizons of the watercourse with subsequent diversion in rebooted + forced the diversion of juveniles throughout the depth of the watercourse, which is proposed in this application improves the efficiency of removal of juveniles fish 10-20% depending on the degree of impact of the above factors. The process of forced removal of juvenile fish is the most effective, because juvenile fish sucked in perforated ribosome trays due to the active operation of the system after avatele installed ejectors. While juvenile fish is guaranteed to be in the inner space of perforated pipes and it is given in ribaupierre pocket which communicates with rubottom. The structural layout of ribosomic trays in a horizontal plane and having perforated holes from the bottom surface of the waterway to allow for uniform conditions for capture setiausaha fish fry.

The presence of longitudinal horizontal baffles inside ribosomnogo tray allows you to split it into two Autonomous ribaupierre parts, each of which enables you to independently carry out the selection of fish - one surface side of the watercourse, and the other, from the bottom of the stream.

The presence of transverse partitions, placed vertically in the space between the perforated surface ribosomnogo tray and longitudinal horizontal partition, which allows you to create ribaupierre channels for a more uniform sampling of juvenile fish with the perforated surface of ribosomic trays.

The connection end parts of perforated pipes, facing rebooted, with the internal space ribopyranose pocket allows you to divert juvenile fish in rebooted.

According to claim 2. The execution of the perforated surfaces of ribosomic trays (ribaupierre the parts parallel to each other is a special case execution adequate functioning of ribosomic trays and devices in General.

According to claim 3 claims. The execution of the perforated surfaces of ribosomic trays (ribaupierre parts) of the conical shape is a variation of their performance. With this arrangement ensures the uniformity of the filtration velocity in the holes of the perforation ribaupierre parts. Indeed, the most remote areas of the trays are areas adjacent to the periphery, and for the effective suction of water flow and juvenile fish with these sites, you must provide at least an equal rate of filtration over the entire surface of ribosomic trays. The cone shape of the tray, extending to the perforated pipes, due to its geometry and hydraulic laws of flow in short pipes allows you to achieve your goal - uniform field filtering on the entire area of ribosomic trays.

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 in the following figures:

figure 1 - device view from the side of the inlet channel;

figure 2 - design of perforated piping system ejectors provided with rybovodnymi trays;

3 - p the pepper section a-a;

figure 4 is a complex cross section b-B;

5 is a protection device, a longitudinal section;

6 is a cross-section of ribosomic trays, a variant of the tapered configuration ribaupierre parts;

Fig.7 - fish protection device plan.

The protection device includes installed in the watercourse 1 repositoryname screen 2, is made in the form of horizontal layers throughout the depth of the watercourse 1 perforated pipes 3 connected to the source of the working medium (not shown), a perforated duct 4, located at the bottom of the watercourse 1, immediately before repositorium the screen 2 is connected to a source of compressed air (not shown)placed in the upper part of the screen 2, in parallel perforated pipes 3 and the duct 4, motorolamotorola tray 5, coupled with rubottom 6. Perforated pipes 3 is equipped with ejectors 7 and rybovodnymi trays 8, and the ejectors 7 is connected with the pressure line of the pump (not shown) and sequentially placed inside perforated pipes 3 and reported perforation holes 9 made in the horizontal plane along both sides of pipelines 3 rybovodnymi trays 8, rigidly attached opposite the perforation holes 9 so that the inner space of ribosomic trays 8 are made with p is dolnymi horizontal partitions 10, separating the trays 8 on Autonomous ribaupierre part 11, the surface of ribosomic trays 8, drawn to the surface and to the bottom of the watercourse 1 made of a perforated, and inside the Autonomous ribaupierre parts 11 are transverse partition 12 forming ribaupierre channels 13, while the initial part of rebooted 6 are made with ribaupierre pocket 14 on the depth of the stream 1 and the end part of the perforated pipes 3, facing rebooted 6 are communicated with the inner space of the pocket 14.

In addition, the perforated surface ribaupierre parts 11 can be executed in parallel.

In addition, the perforated surface ribaupierre parts 11 may be provided with a tapered shape, the height of ribosomic tray 8 is increased in the direction to the perforated pipes 3.

When the duct 4 is formed of an air-bubble curtain in the form of a torch 15. Cleared juvenile fish consumption, water enters the intake 16. Powered ejectors 7 is carried out through the inlet pipe 17 which communicates with the pressure line of the pump.

The protection device operates as follows.

Service manual diversion structure includes a compressor (not shown) and a pump (not shown), thereby resulting in the operating state ribosomic the second device, this setiausaha juvenile fish and borne debris transported torch 15 air-bubble curtains in the surface horizons of the watercourse 1, thereby purifying the water from 1 young fish. Part fish fry, held the torch 15 O.S., caught perforated pipes 3, equipped with ejectors 7 and ribosomic trays 8. Purified from fish fry water enters the intake 16. From surface horizons of watercourse 1 juvenile fish are diverted into rebooted 6 through motorolamotorola tray 5 (figure 5). Of perforated pipes 3 juvenile fish is given in ribaupierre pocket 14 and later in rebooted 6 (Fig.7).

Technology allotment of juvenile fish through the perforated pipes is as follows.

Due to the suction flow generated by the ejectors 7, on the perforated surface of ribosomic tray 8 is formed filtration field with velocities that are necessary and sufficient for the suction of juvenile fish caught in the area of their influence. Juvenile fish through the perforated surface of the trays 8 hits in the inner space of the Autonomous ribaupierre parts 11 and ribaupierre channels 13 formed by transverse partitions 12, absorbed through the perforation holes 9 in the perforated pipes 3 and further transported in ribaupierre pocket 14 and rebooted 6.

Pre the proposed fish protection device allows you to more effectively divert juvenile fish in rebooted without causing environmental damage to the reservoir. Furthermore, the basic components repositoriesuses screen torch O.S. and the system of forced removal of juvenile fish (perforated piping with ejectors and rybovodnymi trays allow you to create combined repositoryname screen. An advantage of the present invention, it should be noted clever layout of the screen is made out tiered, with the offset of each tier in the intake, which increases the probability of juvenile fish towards the surface of the water, it uses a complex engineering and environmental approach.

Sources of information

1. AS the USSR №1102842 (USSR), IPC E 02 In 8/08. "Protection device". Publ. 1983.

2. AS the USSR №1707128 (USSR), IPC E 02 In 8/08. "The protection device of the diversion structure". Authors: A.A. Chistyakov, Fomenko, VA, Cherkasov, VA and Skin V.N. Publ. 23.01.92. BI No. 3, 1992.

1. The protection device of the diversion structure, including specified in the watercourse repositoryname screen, made in the form of horizontal layers throughout the depth of flow perforated pipes connected with a source of working environment, perforated duct, located at the bottom of the watercourse immediately before repositorium a screen connected to a source of compressed air, placed in the upper part of the screen parallel to perfo the new piping and duct motorolamotorola tray, coupled with rubottom, characterized in that the perforated pipes equipped with ejectors and rybovodnymi trays, and the ejectors are connected with the pressure line of the pump and consistently placed inside perforated pipes and communicated to the holes of the perforation made in the horizontal plane along both sides of the pipeline, with rybovodnymi trays, rigidly attached opposite the holes of the perforation so that the inner space of ribosomic trays are made with longitudinal horizontal partitions dividing the tray on a stand-alone ribaupierre parts, and the surface of ribosomic trays facing surface and to the bottom of the watercourse, made perforated, and inside the Autonomous ribaupierre parts are transverse partitions forming ribaupierre channels, with the initial part of rebooted made with ribaupierre pocket on the depth of the watercourse, and the end of the perforated pipes, facing rebooted communicated with the inner space of the pocket.

2. The device under item 1, characterized in that the perforated surface ribaupierre parts are made parallel to each other.

3. The device under item 1, characterized in that the perforated surface ribaupierre parts are made conical, p. and height ribaupierre trays increases in the direction to the perforated pipes.



 

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