SU949059A1

SU949059A1 - Fish protection device for water intake structure

Info

Publication number: SU949059A1
Application number: SU782570375A
Authority: SU
Inventors: Валерий Анатольевич Кулябко; Вера Михайловна Синявская; Александр Александрович Сивков; Евгений Николаевич Гаврилов
Priority date: 1978-01-18
Filing date: 1978-01-18
Publication date: 1982-08-07

Description

Изобретение относится к рыбозащитным устройствам, позволяющим осуществлять водозабор насосными станциями из водоемов, имеющих рыбохозяйственное значение.The invention relates to fish protection devices that allow water intake by pumping stations from reservoirs of fishery importance.

Известно рыбозащитное устройство водозаборного сооружения, включающее уста- 5 новленный на перфорированной всасывающей трубе водопроницаемый экран [1].A fish protection device of an intake structure is known, including a water-permeable screen mounted on a perforated suction pipe [1].

Недостатком этого устройства является наличие вращающихся в воде механизмов, которые приводят к травмированию рыбы. ¹⁰ The disadvantage of this device is the presence of rotating mechanisms in the water, which lead to injury to the fish. ¹⁰

Цель изобретения — повышение эффективности защиты рыбы и ее молоди от попадания в водозаборное сооружение путем отвода ее вдоль экрана.The purpose of the invention is to increase the efficiency of protecting fish and its young from getting into the water intake structure by diverting it along the screen.

Указанная цель достигается тем, что ₁₅между водопроницаемым экраном и перфорированной всасывающей трубой установлены перегородки, выполненные в виде усеченных конусов, диаметры оснований которых имеют уменьшающиеся в направлении к входной части перфорированной трубы ²⁰размеры.This goal is achieved by the fact that ₁₅ between the permeable screen and the perforated suction pipe are installed partitions made in the form of truncated cones, the diameters of the bases of which are decreasing in the direction towards the entrance of the perforated pipe ²⁰ .

На входной части перфорированной трубы установлен с возможностью перемещения вдоль нее гидросмыватель.A hydraulic washer is mounted on the input part of the perforated pipe to move along it.

На чертеже изображено предлагаемое рыбозащитное устройство водозаборного сооружения, продольный разрез.The drawing shows the proposed fish protection device of the water intake structure, a longitudinal section.

Рыбозащитное устройство содержит водоприемную трубу 1, перфорированную всасывающую трубу 2. На перфорированной всасывающей трубе между рядами отверстий смонтированы перегородки 3, на входной части перфорированной всасывающей трубы на ее оси расположен гидросмыватель 4. Он представляет собой конус, обращенный основанием в сторону присоединительного фланца. На больших основаниях перегородок 3 монтируется водопроницаемый экран 5, образующий замкнутую обтекаемую поверхность рыбозащитного устройства водозаборного сооружения. В хвостовой части оголовка располагаются балластные отсеки 6 служащие для удобства подъема перфорированной всасывающей трубы на поверхность водоема при профилактических чистках или ремонтах, а также для удобства монтажа устройства на глубине водоема.The fish protection device includes a water intake pipe 1, a perforated suction pipe 2. On the perforated suction pipe, baffles 3 are mounted between the rows of holes, a water washer 4 is located on its inlet part of the perforated suction pipe. It is a cone facing the base towards the connecting flange. On the large bases of the partitions 3, a water-permeable screen 5 is mounted, forming a closed streamlined surface of the fish protection device of the water intake structure. In the tail part of the head there are 6 ballast compartments serving for the convenience of lifting the perforated suction pipe to the surface of the reservoir during preventive cleaning or repairs, as well as for the convenience of mounting the device at a depth of the reservoir.

Устройство работает следующим образом·The device operates as follows ·

При включении водозаборного насоса поток воды набегает на обтекаемую поверх949059When the water intake pump is turned on, a stream of water rushes onto the streamlined over 949059

Использование рыбозащитного устройства водозаборного сооружения позволяет предотвратить травмирование и попадание рыбы и ее молоди в водозаборные сооружения.The use of a fish protection device of the intake structure allows to prevent injury and the ingress of fish and its young into the intake structures.

ность водопроницаемого экрана 5 и разделяется на водоотборные струи, которые проникают через отверстия в экране с допустимой скоростью и попадают на перегородки 3 и на смывающие струи, направленные вдоль поверхности экрана. ⁵ the permeability of the water-permeable screen 5 and is divided into water-taking jets, which penetrate through the holes in the screen at an acceptable speed and fall on the partitions 3 and on the washing jets directed along the surface of the screen. ⁵

Перегородки 3, создавая различные по длине оголовка гидравлические сопротивления, обеспечивают равномерность водоотбора по всей площади экрана 5. Струи воды, попадая в пространство между перегородками, меняют свои скорости на большие и устремляются к водозаборной трубе 1. Смывающие струи на поверхности экрана подхватывают проплывающую рыбу и ее молодь, а также мусор и отправляют их за пределы устройства. Смывающий эффект 15 усиливается действием струй гидросмывателя 4, направляемых с заданной скоростью вдоль Обтекаемой поверхности устройства. Этот эффект проявляется благодаря охватывающего струями гидросмывателя обтекаемой поверхностью экрана.Partitions 3, creating hydraulic resistances that are different in length along the tip, ensure uniform sampling over the entire area of the screen 5. Water jets entering the space between the partitions change their speeds to large and rush to the intake pipe 1. The washing jets on the surface of the screen pick up a swimming fish and her young, as well as trash and send them outside the device. The washing effect 15 is enhanced by the action of the jets of the hydraulic washer 4, directed at a given speed along the streamlined surface of the device. This effect is manifested due to the streamlined surface of the screen enveloping the jet washer.

Предлагаемое рыбозащитное устройство может быть установлено как в реках, так и в водохранилищах. В первом случае смывающие «корости могут быть обеспечены транзитным течением реки и гидросмыватель 25 может пользоваться периодически. Во втором случае для большего эффекта смывания потребуется постоянная работа гидросмывателя.The proposed fish protection device can be installed both in rivers and in reservoirs. In the first case, the flushing barks can be provided by the transit flow of the river and the hydraulic washer 25 can be used periodically. In the second case, for a greater flushing effect, constant operation of the hydraulic washer will be required.

Claims

(54) FISHING PROTECTION DEVICE FOR AQUATIC STRUCTURE The invention relates to fish protection devices that allow water to be drawn by pumping stations from ponds of fishery importance. A fish intake protection device is known, including a permeable screen 1 mounted on a perforated suction pipe. A disadvantage of this device is the presence of mechanisms rotating in water that cause injury to the fish. The purpose of the invention is to increase the effectiveness of protecting fish and its young from falling into the water intake structure by diverting it along the screen. This goal is achieved by the fact that between the water-permeable screen and the perforated suction pipe partitions are installed, made in the form of truncated cones, the base diameters of which are reduced in size towards the inlet part of the perforated pipe. At the inlet of the perforated pipe, a hydraulic washer is mounted for movement along it. The drawing shows the proposed fish protection device intake structure, a longitudinal section. The fish protection device contains a water intake pipe 1, a perforated suction pipe 2. Partitions 3 are mounted on a perforated suction pipe between the rows of holes, and on the axis of the inlet side of the perforated suction pipe is a water washer 4. It is a cone facing the base flange. On the large bases of the partitions 3, a permeable screen 5 is mounted, which forms a closed streamlined surface of the fish protection device of the water intake structure. In the tail end of the cap, there are ballast compartments 6 for conveniently lifting the perforated suction pipe to the surface of the reservoir during preventive cleaning or repairs, as well as for ease of installation of the device at the depth of the reservoir. The device operates as follows. When the water intake pump is turned on, the water flow rushes onto the streamlined surface of the permeable screen 5 and is divided into water intake jets that penetrate through the holes in the screen with an acceptable speed and fall on the partitions 3 and on the flushing jets directed along the screen surface. Partitions 3, creating different hydraulic resistances along the tip, provide uniform drainage over the entire screen area 5. Water jets, entering the space between the partition walls, change their speed to large and rush to the water intake pipe 1. Flushing jets on screen surfaces pick up passing fish and its young, as well as garbage and send them outside the device. The flushing effect is enhanced by the action of the jet washer jets 4, directed at a given speed along the streamlined surface of the device. This effect is manifested due to the jet-flushing of the flush wash over the streamlined screen surface. The proposed fish protection device can be installed both in rivers and in reservoirs. In the first case, flushing acoros can be provided by the river’s transit flow and the scrubber can be used periodically. In the second case, for a more flushing effect, constant operation of the hydraulic spreader is required. The use of the fish protection device of the water intake structure allows to prevent injury and ingress of fish and its young in the water intake facilities. Invention 1. A water intake protection device, in Kv a permeable screen mounted on a perforated suction pipe, which is fitted on a perforated suction pipe, characterized in that, in order to increase the efficiency, protect the fish and its young from falling into the water intake structure by diverting it along the permeable screen between the partitions, made in the form of truncated cones, the base diameters of which are reduced in size towards the inlet of the perforated pipe dimensions.

2. A device of claim 1, characterized by the fact that at the inlet of the perforated pipe the hydraulic washer is movable along it. Sources of information taken into account during the examination 1. USSR author's certificate No. 480799, cl. E 02 B 8/08, L9.72.