A device for washing net fabrics of fish protection facilities
(57) Abstract:The invention relates to an inkjet proryvnym devices and can be used for washing of screens of fish protection facilities. The aim of the invention is to increase efficiency in the context of significant changes in the atmospheric temperature by regulating the mode of operation. When the pump 2 mounted on the carriage 1, the water enters the wash pipe 3 and through the openings 4 in the form of jets in the cavity, which is filled with water through the slotted holes in the open position, locking mechanism carried by bleed air from the flexible shell 11 through the duct 12 and the controller 13 to the atmosphere. Jet in the cavity ejection water and then through the nozzles 8 are received in a mesh cloth, cleaning it of debris. To put the device in the mode water flute slotted holes overlap by applying air pressure from a source (not shown) in the flexible sheath 11 through the duct 12 through the regulator 13. The water in the cavity, ejectives and shall be made by the jets through the nozzles 8, and the vacant space of the cavity is filled with air through the upper end comprises a u-type 6, soo is isaudio mesh fabric 5 from garbage. The unit in mode water flute is a drain air from the flexible shell 11 through the controller 13 after discharge water through the slotted holes fills the cavity. 4 Il. The invention relates to water jet proryvnym devices and can be used for washing of screens of fish protection facilities.A device for washing net fabrics (water flute), the main element of which is a segment of a tube, along which drilled a number of holes facing the mesh fabric, and the water in the pipe is pumped from both ends or with one in the second muted . A disadvantage of this device is low hydrodynamic impact of a jet on a mesh fabric, resulting in a working passage flute (there and back) is washed with about 20% of the area of the grid.A device for washing net fabrics of fish protection facilities, basic elements of which are communicated with the pump vertical perforated wash pipe, facing the holes in the side of a mesh fabric, and a device for supplying air to the water in the form of a perforated comprises a u-type, V is the reduction of treatment efficiency net fabrics, which is observed due to the instability of the mode of operation of the flushing device, determined by the temperature of the intake air.The aim of the invention is to increase the efficiency of the washing device in conditions of significant changes in the atmospheric temperature by regulation of the mode of the device.This is achieved by the fact that in the known device for washing net fabrics fish protection structures having mounted on a trolley pump communicated with him perforated wash pipe, facing the holes in the side net fabrics, polutropos mounted on the wash pipe from net fabrics, forming communicated with the atmosphere of the cavity and equipped with nozzles arranged coaxially with the holes in the wash pipe, and the proposed device is equipped with a controllable shut-off mechanisms, and the cavity formed by polutropos attached to the wash pipe with the formation of the slot between the longitudinal edges comprises a u-type and the outer surface of the wash pipe, and locking mechanisms installed in the specified slot holes.The device of the slit allows polished), than and achieves greater efficiency washing net fabrics. This device is useful in cases where a positive temperature difference of air and water becomes insignificant or even negative. With increasing temperature difference closing slit locking mechanism water flute with improved performance is converted into a water-washing device that works effectively with large temperature differences, air and water. Thus, increasing the efficiency of the washing net fabrics through the use of different modes of operation of the proposed device allows you to clean the mesh fabric in a wide range of atmospheric temperature.In Fig. 1 shows a device for washing net fabrics of fish protection facilities, General view; Fig.2 - section a-a in Fig.1; Fig.3 is a section along B-B in Fig.2 (in operation the air / water flute; Fig.4 is a section along B-B in Fig.2 (in the mode of operation of waterjet flute).A device for washing net fabrics includes mounted on the truck 1 pump 2; connected to it the upper end of the vertical leaching pipe 3 holes 4, converted to hay coaxially with the holes 4 wash pipe 3, moreover, the lower ends of the washing pipe 3 and comprises a u-type 6 muted, and the upper end comprises a u-type 6 communicated with the atmosphere, and is attached to the wash pipe 3 with the formation of the slot 9 between the longitudinal edges 10 comprises a u-type 6 and the outer surface of the wash pipe 3, which has operated locking mechanisms, consisting of flexible shells 11 to fill with air through the duct 12 connected to the controller 13 and the feed and bleed air.The device operates as follows. When the pump 2 mounted on the carriage 1, the water enters the wash pipe 3 and through the openings 4 in the form of jets into the cavity 7, which is filled with water through the slotted holes 9 in the open position, locking mechanism carried by bleed air from the flexible shell 11 through the duct 12 and the controller 13 to the atmosphere. Jet in the cavity 7 ejection water and then through the nozzles 8 are received in a mesh cloth, cleaning it of debris. To put the device in the mode water flute slotted holes 9 are overlapped by applying air pressure from a source (not shown) in the flexible sheath 11 through the duct 12 through the regulator 13. The water in the cavity 7, AGEC the cut upper end comprises a u-type 6, then ejectives jets forming a water-air jet washing, cleansing mesh fabric 5 from garbage. The unit in mode water flute is a drain air from the flexible shell 11 through the controller 13, after emptying which water flows through the slotted holes 9 into the cavity 7.The operation of the device in the mode water flute recommended in the case of small temperature changes of the water and atmospheric air. Thus due to the ejection of the water jets is provided by increasing the flushing flow rate and the desired degree of purification of a mesh fabric. Operation mode air flute recommended at a sufficiently high temperature water and air.Thus, the proposed design can increase efficiency in a wide range of water temperature and ambient air. A DEVICE FOR WASHING NET fabrics of fish PROTECTION FACILITIES, including mounted on a trolley pump connected to it the upper end of the vertical leaching pipe with holes facing toward the mesh fabric, and attached to the pipe with the mesh cloth Polustrovo with nozzles, ray, and the upper end comprises a u-type communicated with the atmosphere, characterized in that, with the purpose of increase of efficiency in the conditions of significant changes in the atmospheric temperature, it is provided with a controllable shut-off mechanisms, and polytropa attached to the wash pipe with the formation of the slot between the longitudinal edges comprises a u-type and the outer surface of the wash pipe, and locking mechanisms installed in slotted holes.
FIELD: hydraulic engineering.
SUBSTANCE: invention relates to devices for taking water from surface sources and it is designed to provide protection of diversion facilities from slush ice. Proposed device contains three-dimensional filtering cassettes installed in guide of slot structure of intake port of submerged water intake head of diversion facility consisting of metal rectangular frame with filtering plastic tubes tightly fitted in slots on inner side. Plastic tubes are made truncated along their generatrices on secant line of base of corresponding filtering plastic tube. Chord of secant line of base of filtering plastic tubes is either equal to or non- equal to outer diameter of tubes, and dimensions of metal rectangular frame are multiple of said chord. Truncated filtering plastic tubes can be installed in metal rectangular frame in slots on inner side, either vertically or horizontally, being interconnected by hydraulic insulating material.
EFFECT: provision of effecting protection of diversion facilities from slush ice.
4 cl, 2 dwg
FIELD: hydraulic equipment, particularly mechanical equipment for hydraulic structures, namely heat power plants, atomic power plants and hydroelectric power plants, to protect underwater structure parts from unauthorized access in supply and discharge channels thereof.
SUBSTANCE: protective grid comprises vertical rods and connecting members. Two-level control system is arranged in the grid. One level comprises two independent signaling circuits. The first circuit is arranged in vertical rods shaped as vertical hollow pipes in which contact signaling means wire provided with sensors is arranged. The sensors are located in upper horizontal pipe of independent section. Wires of contact signaling means and sensors are united to form common cable. Wires of contact signaling means formed in the second circuit are located in two extreme hollow pipes and connected with two or more water sensors located in lower horizontal pipe. Lower horizontal pipe and upper horizontal pipe are communicated with all vertical hollow pipes. Common cable of the first circuit and wires of the second circuit are led out and connected to sound and light alarm of the grid and to operator's console. Another level has portable television probe adapted to perform vision-based monitoring and to determine quantity and qualitative characteristics of detected deformations. The television probe may slide along guiding means, for instance along rings. The grid may be installed in slots of hydraulic structure and may be displaced in horizontal direction by hoisting device. Upper and lower horizontal pipes, as well as vertical hollow pipes may be U-shaped or linear and are formed of round or elongated profile. Connecting member may be formed as solid horizontal plate or have hollow ellipsoid shape adapted to receive additional contact signaling means wires.
EFFECT: increased operational reliability, increased accuracy of deformation location and type.
4 cl, 4 dwg
SUBSTANCE: system comprises a settling chamber 1 with a flushing gallery placed between the supply 2 and drainage 3 sections of the channel. The chamber is made with rising side slopes 21, in the lower part of which there is an inlet hole 4 of the flushing gallery 5. The system also comprises a centrifugal clarifier made in the form of cylindrical chambers 6 and 7. The bottom of the chamber 6 is made as inclined towards the central flushing hole. The chamber 7 is placed inside the vertical chamber 6. At the inlet to the settling chamber 1 there is a flat sluice gate 23 with a curvilinear screen 24. The flushing gallery 5 adjoins with its inlet to the inlet at the outer side of the cylindrical chamber 6 and is placed inside the chamber 7, equipped by additional nozzles. The second nozzle 13 is made in the form of an attachment 12 with a flow swirler and with development of a directed water flow connected to a source of discharge water pipeline, and is placed as coaxial to the vertical axis of the flushing drainage pipeline. The lower edge of the internal cylindrical chamber 7 is arranged above the bottom of the external cylindrical chamber 6. The inlet end wall of the flushing gallery is equipped with a horizontal screen 20.
EFFECT: simplified design and higher efficiency of water intake protection against ingress of bottom sediments and floating debris.
2 cl, 2 dwg
FIELD: engines and pumps.
SUBSTANCE: method includes installation of a shield controller 4 and a threshold in a channel. The shield controller 4 is installed at the outlet of a transition section 1, placed between supply 2 and transit 3 channels. In the lower part of the shield controller 4 there is a flush hole 5. At the inlet of the receiving chamber there is a flat shield in the form of an overflow threshold with a drive 14 with capability of vertical displacement. Flow energy redistribution is carried out by displacement of the flat shield. A jet-guiding threshold is made from two sections in the form of a curvilinear and rectilinear 18 one in the vertical direction of walls, providing for the jet-guiding system and kinematically connected with the overflow threshold. The curvilinear wall is installed on the axis 13 as capable of rotation. Installation of the jet-guiding system, movable in vertical and horizontal planes and connected with the movable overflow threshold, placed at the side of the lateral wall of the receiving chamber, provides for concentration of sediment flushing in direction of the flushing hole 5 of the shield controller 4 and further into the transit channel 3.
EFFECT: increased reliability in operation by means of lower impact at a control accessory of bottom and suspended sediments contained in water.
5 cl, 4 dwg
SUBSTANCE: water intake contains base or platform, housing and trash screen at its ends. The platform if formed and housing is fixed to its upper surface. Then at least one screen is installed so that inner space embodies platform with housing and screens at the bottom of water source. Outlet of the housing is connected to pipeline. Water intake forms half cylinder at the platform. Anchors can fix edges of water intake to the upper surface of platform. The base can have barrier placed at its one end. Each of screens is installed to the platform near the housing and forms half cylinders. Each screen forms inner cavity communicated with inner hollow space of the housing. Each first and second screens contain a lateral wall, closed distal end and open proximal end fixed to the housing. Closed distal ends have end walls. Water intake can have intermediate walls located between inner space of the housing and inner space of screens. In each transient wall there's at least one flow modifier. Flow modifiers together with platform form half cylinder. Water intake can have a collector placed in screens. Screen structure can include ribs located along screen length. It can also have wire located across ribs.
EFFECT: increasing protective efficiency of screens from silts and providing uniformity of flow distribution along surface area of screens.
28 cl, 16 dwg
SUBSTANCE: device includes an elastic cloth installed across the flow. The elastic cloth is made as meshed according to shape and size of the flow and is fixed to the frame. The frame is installed on a rotary crosspiece, which has a drive. At the same time the frame comprises a rotary axis parallel to the direction of the flow with the possibility of frame rotation with the elastic cloth perpendicularly to the direction of the flow and fixation of the frame in the necessary position. At the side part of the crosspiece there is a loading cart for removal of dirt.
EFFECT: increased quality of irrigating water treatment, simplified design and reduced energy intensity of treatment.
SUBSTANCE: electrode section is made as a flat structure, it consists of horizontal and vertical electrodes. The section is divided into 2 and more electrodes vertically and horizontally the section includes 1 and more electrodes. Diameter of the horizontal and vertical electrodes is not less than 10 mm, length of each electrode is more than 1m, and distance between the electrodes is not less than 0.05 m. Voltage is supplied either to horizontal or vertical electrodes only or to horizontal and vertical electrodes simultaneously.
EFFECT: more uniform structure of the electric field, increase in operational efficiency of the device without essential increase in the structure volume, improvement of operational reliability and efficiency of the device.
SUBSTANCE: device consists of supply channel 1 with cantilever 3, transit channel 2, and receiving well 4. Rotating filter element 8 with water-permeable plate 18 attached to horizontal rotation axis 11 is installed above well 4 on the side of transit channel 2. Element 8 consists of a set of two similar plates 9 and 10 attached to axis 11. Free end of plates 9 and 10 has slot 13. Horizontal plate 14 is attached with a plane to free ends of plates 9 and 10 and to the end of element 8. Flushing hole 15 with seal 16 is made in element 8 at attachment point to axis 11. Supporting plate 17 is located with an inclination towards transit channel 2 and attached to bottom edge of element 8. Transverse slot 28 for support position of supporting plate 17 is arranged at the bottom of transit channel 2. Grid 22 together with brier teeth 23 and 24 is fixed at the bottom of supply channel 1 with possibility of being turned on horizontal axis 21 and is restricted with a stop in the form of transverse vertical wall 27. Grid 22 is located above filter element 8 and has curved shape and faces with its concave side towards element 8. Slot 13 in plates 9 and 10 of element 8 is installed coaxially to bent end 25 of brier teeth 23 and 24 and the latter are restrictors of its vertical position.
EFFECT: simplifying design of the device and improving its operation reliability and water treatment quality.
5 cl, 6 dwg
SUBSTANCE: mechanical grid comprises a trash stack with a row of parallel bars on grid beams, scrapers with a row of parallel teeth on beams of scrapers for cleaning of the grid. The trash stack and scrapers are made as demountable. The grid beam is equipped with a detachable angle. Eyes of grid bars may be inserted into through holes of the grid beam. The protruding part of eyes from through holes in the grid beam is equipped with slots for insertion of the upper part of one of angle shelves into them, and the other shelf of the angle is fixed by a bolt joint to one of the shelves of the grid beam channel to form a lock joint.
EFFECT: unification of structure elements for commercial production of a standard device, faster assembly and adjustment of a device, simplified repair of a grid and scrapers, increased reliability of device operation.
3 cl, 6 dwg
SUBSTANCE: invention relates to hydrotechnical facilities, and can be used to remove deposits from bottom of the entrance bay and contaminations from trash screens. Device contains a framework with guides and cleaning loop, comprising separate sections hanged on endless haulage chains, located in the said guides and moved by drive. The framework with guides is made L-shape out of channels installed by ribs towards each other to ensure location on the rib internal surfaces of the support rollers of the cleaning loop, made in form of buckets secured on the endless hauling chains. Sections of the cleaning loop are arranged with overlapping through clamp width. In top part of the cleaning loop under buckets the offloading conveyor is provided to remove rubbish from area of the trash screen. Drive of the endless hauling chains is made from gear motor installed in top part of the framework coaxially with top drive shaft of the hauling chains.
EFFECT: quality cleaning and rubbish removal beyond the facility.