Method to control hydraulic structure of water flow in water-receiving chamber from sediments

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

 

The invention relates to hydraulic engineering, namely to remedy irrigation systems with closed irrigation system from the ingress of sediment and floating objects.

Known water intake structure, comprising placed in the channel of the retaining structure with a locking device made in the form of automatic limit, nanolipobelle hole (Sable GV Protection structures on the rivers and canals from the sediment. Frunze: Kyrgyzstan, 1968, str).

A disadvantage of the known device is that which the system threshold is fixed directly to the bottom of the inlet channel and leads to complex hydraulic calculation of hydraulic structures are broken thread. In addition, with the rapid rise in water level upstream of the sediment strongly vspuchivajutsja and move in suspension throughout the depth of the filling, which leads to the supply of sediment also over the threshold. Occurred at non-uniform unsteady motion of curvature of the streamlines, pulsation speeds, etc. do not allow the load distribution along the height of not only the variation in turbidity, but with uneven particle size, i.e. in the upper layers can be such fraction of sediment that when uniform motion would never be drawn. The magnitude of the reset without hudsen the quality control, sediment cannot be adjusted: when additional obstacles in the stream in the form of the shutter occurs the shielding effect and the sediment are not considered in prominic, even though the water is discharged. Attempts to reduce the magnitude of the reset gradual downsizing of the leaching holes good only until the moment when the water velocity is greater than or equal to the velocity of the water in front of the hole, when the decrease in the velocity occurs the effect of "water cushion", similar to the shielding effect. This suggests that it is required to increase the ratio of water more than 0,5 0,55...that is the upper limit of the application of this technical acceptance. This presupposes the creation of a mandatory pre-defined patterns of flow, ensuring the passage of sediment from nanoepitaxy elements.

For the best excitation circulation and coil currents sill height should be variable in its length in the initial (upstream) side of the threshold more end - less. In addition, when you pass through the inlet channel design flow there was no flooding of the flow in the inlet channel from the bottom of the threshold, as in the channel decreases the transport capacity of the stream and will be deposited sediment, reducing its living section. The dimensions of the leaching of the hole must match the dimensions of the helical flow formed along the bottom threshold, it increases the cost of water for washing. However, in low-water period, the transport of these sediments is ogranichivaetsya.

In this regard, depending on the size of the intake structure should be proposed such a new device, when there is more than one spiral spins at the point of removal of sediment, for example, at the bottom of the rapids. Hence it is necessary to provide the desired supply upper threshold on the estimated maximum water level.

A device that includes a trench, the threshold, the drive, the shutter nansouty channel (USSR Author's certificate No. 655765, CL EV 8/02, 1976).

The disadvantage of this device is ineffective interception of sediment due to the weak development of spiral motion in the tray. In addition, when the partial opening of the shutter requires a large wash water consumption, this lack of reliability even when manually maneuvering the shutter. A stable circulation flow is generated at certain speeds and does not account for a large turbulization of the flow with increasing (changing) of the water level in the inlet channel, as well as with low-energy flow, which significantly limits the scope of its application. In the known device the washing hole is located directly in the movable panel, which at minimum content of water in the supply channel is located at the same level as the bottom of the inlet channel. Because of this (at low water levels) prism sediments sediment n who comes to the flushing holes in its maximum displacement. In connection with what is wasteful discharge of irrigation water.

Also known protection method Nanomolecular structures from debris, sediment, including the supply and transit channels placed between the trench bottom proryvnym hole, the bottom of which is located below the bottom of the supply and transit channels, the shutter consists of two rigidly connected to each other panels with excitation of the transverse circulation flow, nansouty channel, the actuator is made in the form of the float rod, the threshold and the drain line (USSR Author's certificate No. 1065525, CL EV 8/02, 1981).

The disadvantages of this method of protection of the transit channel sediment is the low efficiency of removal of sediment from the transit channels, this creates a hydraulic screen before a fixed threshold. A stable circulation flow is generated only under certain flow rates and does not account for the greater turbulence in the flow in excess of (changes in) the water level in the inlet channel, as well as with low-energy flow, which significantly limits the scope of its application. This in turn leads to unproductive proryvnym expenses in case of increase in water level upstream of the nominal and does not provide sediment transport, when the water level is less than the nominal. The height of the roller and the intensity of Yunosti of rotation depend on the height of the threshold and the water level upstream of the structure, that is not always consistent with other elements of the structure in the event of a change in characteristics of the stream. The result of this phenomenon is sbinet current and additional turbulization of the flow, which leads to deterioration of quality of the entire structure. The device does not provide for the possibility of regulating the speed of rotation of the fluid directly as when entering the slit trench, and the trench in the event of changes in flow characteristics. In the known device the washing hole is located directly in the movable panel, which at minimum content of water in the supply channel is located at the same level as the bottom of the inlet channel. Because of this (at low water levels) prism sediments sediment does not reach the flushing holes in its maximum displacement. In this regard, there is wasteful discharge of irrigation water. Work is also in the process of flushing when a sudden increase in water level upstream of the channel and the opening of the shutter is made of two panels, leads to a large wasteful discharge of water, and the presence of the counterweight only leads to loss of the instability of the shutter. This is because the deflection angle is changed, accordingly vary the moments of force application relative to the axis of rotation of the shutter from both the location of the counterweight, and the side pressure of the water upstream of the channel. Possible jamming of the axis of the gate. It affects you change the height of vertical and horizontal panels of the shutter. The design of the bottom of the trench delays the sediment in the form of large stone especially irregular shape due to run in a groove in the back wall of the trench. All this leads to the blockage of the drain line and does not provide the performance level sensor, as a consequence, the shutter is fully open. Another disadvantage is the instability of the rolling shutter because of the presence of two separate control devices, hard consistent in the process of construction, every time you need to adjust the counterweight on a certain position of the trim gate is self - oscillating process instability), while the axis of the shutter in the flow of water always has the opportunity to clog. The known device cannot effectively removes sediment from the intake side of the camera, this creates a shielding effect and is wasteful discharge of water on the wash load.

The closest in technical essence to the present invention is a method of protection of allotment in the recipient side water chamber from floating litter (awts of the USSR №1781367, CL EV 5/08, 1991).

The disadvantages of the known protection method outlet side of the camera from floating Sora one is by low efficiency of removal of bottom sediment vertical door from the side walls of the chamber, paired with the bottom of the inlet channel, i.e. insufficient protection from suspended and bottom sediments due to the lack of development of spiral motion in the channel prior to diversion of water in the receiving chamber, in which is mounted a rotating perforated drum. When closed, the shield-controller across the channel there is no secondary flow stream and with the gradual deposition of sediment before the threshold is formed prism of suspended sediments and bottom sediments with subsequent receipt of the last in the perforation of the drum, which creates resistance, sticking cracks, it comes with less water than is required for irrigation engineering around the perimeter of the drum is jamming it. Ultimately, the drum speed is reduced. Accordingly, the resulting impeller at low after the water from the drum gets a slight speed until it stops (the flow rate of water must be at least 3 m/s). In this case, the device does not allow you to collect the treated water in a closed pipeline. In addition, for control devices need a certain time to open across the entire width of the channel shield-hand controller for flushing forming prism sediments and resetting at the same time a large amount of water in transit channel (unproductive the discharge water flow - especially during the irrigation period). There is no optimal slope of the bottom of the channel in the side wall of the reception chamber, which does not allow to improve the transportation of suspended and bottom sediment in transit flow conduit. With long-term drainage of water into a side chamber shield regulator (the water level is above the drum) is required to maintain the maximum (estimated) the water level in the chamber, this allows suspended and bottom sediment to settle before the threshold that you can't effectively use a straight line segment threshold for the implementation of the protection of sediment at steady state of water, i.e., no stream directing system and communication with sbresny hole. When this is ignored by the device, the installation of any structures elements adjustably in height and at different angles to the main stream and they have a kind of magic (f), providing the favorable structure of the flow in the transfer of deposits in transit conduit while preventing them in the side lumen. At the same time on a given area of the width of the channel stream is not released from the sediment in the continuous mode, nothing prevents the sedimentation chamber and the perforations of the drum. Thus, the sediment gets into the intake, which is a significant disadvantage of this device. In addition, there should be auto washed away by the flow of sediment into the tra the attributes conduit constantly. Cleaning this building under the stream of water is significant difficulties.

Thus in summary, the disadvantages of this method are: the need for visual control for start cleaning channel; manual control mode flushing; lack of control over the removal efficiency of sediment through the channel along its length.

The purpose of the invention is to increase reliability by reducing the impact on the control device contained in the water bottom and suspended sediments.

This objective is achieved in that a method of regulating the hydraulic flow pattern at the water intake chamber from the sediment, including installation in the channel of the shield control and threshold, produces a corresponding redistribution of energy flow moving flat sheet, made in the form of spillway limit before receiving cell in the input part thereof with which the threshold is made of two sections in the form of curved and straight vertical walls and a curved wall mounted on an axis that can be rotated, which provides a system and kinematically connected to the overflow threshold.

This curved wall is connected with the overflow threshold thrust through in the form of a screw with a nut and hinges.

the ri this wall, which is connected rigidly with the formation of an acute angle between a side the opposite promiseme hole, and the lower part of the straight wall feature for the point of intersection in the direction of flow, and the bottom of the transition section of the channel is made in the form of a reduction in the side shield regulator ramp with a rising slope from the reception chamber.

In addition, a curved wall provided in the upper part of the hollow horse tube through a tube connected to the downstream pipe with holes located in the base of the lower edge of the curved wall of the bottom section of the channel, and horse pipe are connected by flexible hose to a source of pressurized water or compressor, maneuvering which produce on command from a remote control.

In addition, a curved wall at the base has a peak towards the bottom of the plot before the downstream pipe.

This embodiment of the protection method reception chamber and a perforated drum from suspended and bottom sediments occurs due to rotation, which threshold associated with flat shield in the form of a spillway threshold, as the height of the channel and its width oriented in a certain way, selecting the position with no chance receipt of sediment in the receiving chamber of the drum in the discharge channel and the intensification of the helical flow of the water drum in front of the flat soup is ω in the initial part of the reception chamber of the drum. The result is that the bottom layers of water containing sediment, proceed in the direction of the flushing holes in the shield-controller and in transit the canal and did not allow them to settle before receiving cell. Is the suspension and lifting them into the middle layer stream and the transfer of sediment to the narrowed area of the width of the transition channel, located closer to promiseme the hole in the shield-regulator, which allows efficient use of these sections, which system threshold. Install vertical shield in the form of a spillway threshold before receiving cell, which is at the same time and the door can be installed at different angles to the incident flow, and the presence of thrust in the form of a screw with a nut and hinges provide favorable flow structure when transferring load to the narrowed area of the channel and the direction in washing the hole in the shield-the regulator and then to transit the canal. When changing consumption (water level) in the channel in front of the flat shield with which the system is lowered to the bottom of the channel. A positive result also occurs in the smooth lowering and narrowing along the flow of the ramp and raises the side of a slope in flat shield in front of the entrance part of the reception chamber, and the main cleared of sediment a stream of water flows over the top edge of the shield (spillway) and enters the receiving Cham is the drum. Active loosening of the sediment below the base of the curvilinear wall supplying fluid under pressure water or compressed air, filling the internal cavity of the tube around the section with outlet holes, during the flushing of sediment 25-30% reduces the flushing of sediment. It should be noted that the device is substantially uniform, as it includes several operations to protect the water intake chamber with a drum.

The economic efficiency of the proposed method of regulating the hydraulic flow pattern of water in the water intake chamber from the load is to combine in one technological cycle of optimal intake of pure water in the discharge channel and additional sediment transport, submitted to transit the canal. In addition, significantly reduced the drawdown of the water flow, i.e. the effective two-step purification of water from debris and sediment.

Such use of the method of regulating the hydraulic flow pattern of water in the water intake chamber from the load, according to the author, was previously unknown and meets the criterion of "Significant differences".

Figure 1 shows nanosatellites device, type in the plan; figure 2 - a section a-a figure 1; figure 3 - site nanoregulation device made in the form of a plate curved in the direction of the basement is included channel with pressurised pipes and flexible communication line; figure 4 - site layout nanoregulation device connected to the overflow threshold, in a perspective view.

The implementation of the method of regulating the hydraulic flow pattern of water includes a transition section 1 of the channel located between the inlet 2 and transit 3 channels. At the exit of the transition area 1 is shield-controller 4 with the washing hole 5 in the bottom part of the shield controller 4. The bottom of the transition section 1 made in the form of ramps (decrease) 6 in the direction of shield-controller 4 with increasing lateral slope 7 from the side wall of chamber 8. The receiving chamber 8 has a perforated drum 9, is rigidly connected with the horizontal axis 10 in the bearings 11 on author. mon. No. 1781367.

Nanosilicate structure includes mounted in the side wall of chamber 8 flat shield in the form of a spillway threshold 12 attached to the axle 13 to the side edge of the shield-threshold 12 and a screw lift 14 in vertical guides 15. To the axis 13 is attached a lateral plane nanoanalysis rotatable bottom wall 16, made in the form of two unequal curved and vertical vertical walls (plates) 17 and 18 with the formation of an acute angle between them, i.e. in the form of two straight lines, intersecting at an acute angle. The vertex of the acute angle facing about avaprono promiseme hole 5 shield-controller 4. The plate 17 has a high part, and the plate 18 is depressed section of constant height for a point located at the intersection point in the direction of flow. The supporting rod 19 is in the horizontal position nanoanalysis wall 16 in the form of a screw with a nut with the hinges connecting the side plane of the spillway threshold (shield) 12 nanoanalysis wall 16 with the possibility of horizontal translational movement relative to the bottom and the width of the transition area 1 channel traction and fixation (screw-nut) 19. All which system 16 attached to the side of the plane to the overflow threshold 12, is installed with the possibility and vertical movement along the side wall height of chamber 8. Bottom end panel overflow threshold (shield) 12 in vertical guides 15 is elongated in the direction of the bottom of the transition section 1 of the channel diametrically opposite lateral walls of the threshold 20 of chamber 8. Because which the bottom wall 16 creates a helical movement to the flow of water near the bottom and it goes in the washing hole 5 of the shield controller 4, and when the water level in the transition region 1, channel flow, respectively, at the height of the filling can be satisfied also by the deposits of different fractional composition according to the size from the top to the curved plate 17 with abgene hollow pipe 21 connected by a tube 22 to the downstream pipe 23 with the openings 24 in the lower part of its length. Grassroots pipe 23 is attached to the base of the lower edge of the curved plate 17. The pipe 21 to the pipe 25 by a flexible line (flexible hose) 26 connected to a compressed air source (compressor or pump to discharge water under pressure (not shown). Maneuvering compressor or pump produce on command from a remote control (not shown). In addition, the base plate 17 has a peak 27 and is directed toward the bottom of the channel 1 before the downstream pipe 23.

Prepositional way when moving up the overflow threshold 12 drive 14 with nanoanalysis system 16 will allow the use of simple equipment (compressor or pump) for injection of air or liquid is not less than 0.1 MPa and thereby significantly improve the removal of sediment (resuspension and transportation) in the direction of the flushing holes 5. This greatly increases the efficiency of the washing section 1 of the channel before receiving chamber 8 from sediment smaller sbresny consumption and for less time to reset. The device allows clean water, for example, a rotating perforated drum 9 to serve in the irrigation system from the load, i.e. the required quality and volume, and to ensure reliable operation of the drum. The cost of cleaning will reduce in a few dozen times.

The method of regulation of hydraulic structures potokovoy as follows.

To protect the receiving chamber with the drum 9 from sediment overflow threshold (shield) 12 is lowered in the guide rails 15 in the lower position, the upper edge it forms an overflow threshold, and nanomanipulator system walls 16 are oriented in a certain way, selecting the altitude of the wall 16 in the direction of the flushing holes 5 shield-controller 4. Due to the presence of the fixation walls 16 articulated thrust 19, made in the form of a screw with a nut, provided the desired angle and at the same time causes a rapid movement of a stream with a bias towards the flushing holes 5. Sediment transported in the transit channel 3, and clean surface layers of the water received in the receiving chamber 8 on the perforated drum 9, and then into the pipe or channel irrigation systems.

In cases of large spending increases sharply when the flow rate and the water level in front of the shield-controller 4, and increases the sediment transport in the inlet channel 2, make the move overflow threshold (shield) 12 up from the side of the inlet chamber 8 and nanoanalysis system 16 also moves up. Due to the mounting system 16 with a vertical axis 13 and swivel thrust 19, attached to the overflow threshold 12, the deflection angle of the walls 16 are subject to direct regulation in the form of a screw with a nut. Such installation under various ug is AMI interaction to flow with the axes of the kind of tricks (the point of intersection of the walls 16 with the longitudinal axis of the bottom of the transition section 1) provides a favorable flow pattern when the direction of load on the inclined section 1 of the channel in the direction of the flushing holes 5, which are further transported in the transit channel 3.

To bring the design into working position when the water level rises (the protection device is moved vertically upwards with a movable threshold 12) socket 25 of the hollow tube 21 with a flexible line 26 is connected to the pressure line of the compressor or pump (not shown). Then in the downstream pipe 23 through the tube 22 allowed under the pressure of the air or under water pressure. The air or water out of the holes 24 in front of the visor 27, constantly Usacheva moving along the bottom of the ridge (sediment) and not allow them to settle below the visor 27. This considerably increases the effect of washing on a slope of 1 within less time on the water discharge. This increases the performance of the washing and operation of the device due to resuspension (loosening) of sediment on the bottom of section 1 of the channel during operation of the device in different horizontal translational positions.

The efficiency of the device is achieved by the fact that Sienna plot the living section decreases sharply, causing a sharp increase in the speed and capacity roiled flow that will reduce the flushing time is several tens of times with a decrease in specific volume flush for 1 m3load, and the cost of cleaning NDA is seeking no less than 2-3 times. Thus the combination occurs in one technological cycle of optimal intake of clean water and effective two-step purification from load.

1. The method of regulating the hydraulic flow pattern of water in the water intake chamber from the sediment, including installation in the channel of the shield-controller and a threshold, wherein to improve reliability by reducing the impact on the control device contained in the water bottom and suspended sediments produce a corresponding redistribution of energy flow moving flat sheet, made in the form of spillway limit before receiving cell in the input part thereof with which the threshold is made of two sections in the form of curved and straight vertical walls and a curved wall mounted on an axis that can be rotated, which provides a system and kinematically connected to the overflow threshold.

2. The method of regulation according to claim 1, characterized in that the curved wall is connected with the overflow threshold thrust through in the form of a screw with a nut and hinges.

3. The method of regulation according to claim 1, characterized in that the wall, which is connected rigidly with the formation of an acute angle between a direction opposite promiseme is Tertio, moreover, the lower part of the straight wall feature for the point of intersection in the direction of flow, and the bottom of the transition section of the channel is made in the form of a reduction in the side shield regulator ramp with a rising slope from the reception chamber.

4. The method of regulation according to claim 1 or 2, characterized in that the curved wall provided in the upper part of the hollow horse tube through a tube connected to the downstream pipe with holes located in the base of the lower edge of the curved wall of the bottom section of the channel, and horse pipe are connected by flexible hose to a source of pressurized water or compressor, maneuvering which produce on command from a remote control.

5. The method of regulation according to claim 1 or 2, characterized in that the curved wall at the base has a peak towards the bottom section of the channel in front of the downstream pipe.



 

Same patents:

FIELD: construction.

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: construction.

SUBSTANCE: method includes arrangement of a trench 7 between supply 24 and transit 18 channels, a lock 5 in the form of rigidly fixed webs with excitation of cross circulation of the flow, a sediment-diverting channel 6, a wash hole 4, which is arranged in an inclined manner in direction of the flow, and a rift. A drive is made in the form of a float, traction rods and a drain pipeline. The lock is made in the form of a vertical shield 1, the lower edge of which is arranged below the channel bottom. As water level increases upstream the vertical shield, which serves as a circulating rift, the shield 1 is moved in guides with the possibility of vertical displacement along the height of the trench 7, which is divided into two unequal parts. The lower edge of the vertical shield is equipped with two rigidly connected plates, placed in the bottom part of the trench, the upper (front) 2 of them has length larger than the horizontal lower plate 3. The upper plate 2 provides for the possibility of an inclined jet-directing element towards a sediment-washing opening 4, and the lower plate 3 provides for a protective screen.

EFFECT: higher efficiency of control by reduction of sediments feed into a transit channel and reduction of inefficient water discharge for washing of sediments, provides for the possibility to adjust a hydraulic structure of a flow in a draining trench.

5 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: proposed method comprises washout of sediments by water jets to carry fine fractions over by flow and strengthening waterway bottom by coarse fractions forming riprap. Velocities of washout and carryover sediments in continuous blow with stream are created by in-channel basin displacing in blow. Said in-channel basin is formed by device acting as water-retaining construction of variable geometry. Proposed method is implemented using the device composed of horizontal web with ballast arranged thereon connected with pressure web by ropes to make water passage there between and provided with balloons secured along said passage on said web and adjusted by filler. Opening of said passage is adjusted by moving web. The latter is secured by stabilising rings to ropes, pressure web and directly to balloon and horizontal web by ropes via said guide rings. Device displacement in blow direction id effected by varying balloon filler volume. Said balloon has inner rope diaphragm tightening it above central part and is installed on horizontal web at the point of fastening to control rope guys locating the device on waterway bed.

EFFECT: higher efficiency of washout.

4 cl, 8 dwg

Water-intake device // 2446255

FIELD: construction.

SUBSTANCE: water-intake device comprises a body 1 with inlet 2 and outlet 3 holes, where accordingly inlet 4 and outlet 5 membrane valves are inserted. In the body 1 there is a filtering element installed, made in the form of bell components. Components are installed on the axis 13 of square section. In the cylindrical part of the components there are half-openings made in the form of half-channels at the angle α of below 90° to the axis 13, forming filtering channels 14. There are springs 15 installed between components. There are slots 21 and ledges 22 for accurate fixation of bell components.

EFFECT: invention makes it possible to increase reliability and quality of liquid treatment, for instance, from livestock drains of cattle complexes and pig complexes, from solid and fibrous structures.

2 dwg

FIELD: construction.

SUBSTANCE: invention is aimed at increased survival rate of larvae and reduced labour intensity of works for growing fish. Device for growing fish consists of pond, pipe for water drain from pond, water line for supply of water into pond and filter. Device is provided with lantern having rigid frame, water drain nozzle and flexible hose, one end of which is connected to nozzle of lantern, and the second one - to nozzle of pipe for water drain. Filter is placed onto rigid frame of lantern to form side walls, bottom, and includes hole for lantern nozzle, which is arranged in lower part of lantern, and length of flexible hose is arranged as equal to 1.2-1.5 of maximum depth of water in pond. Filter may be made of mill screen or in the form of metal wire lattices, at the same time opening for nozzle of lantern will be located on side wall of lattice.

EFFECT: increased survival rate of larvae and reduced labour intensity of works for growing fish.

3 cl, 2 dwg

FIELD: water construction purification.

SUBSTANCE: invention relates to hydromechanisation namely to technology of purification and restoration of biological ponds of purification plants. Method of purification and restoration of biological ponds of purification plants includes intake of silt sediments with suction dredge from the bottom of multi-sectional pond and their transportation to sedimentation tanks. Pond is divided into two working areas of treatment, the latter is connected by means of additional input collector with sewage-water supplying canal in direction of sewage water flow motion, the former is blanked off, and construction of ground dam in area of purification is carried out as protective means. After that step-by-step purification of area is performed, for this purpose trench in silt sediments layer is sucked off by suction dredge, after that clarified water is pumped out and discharged into diversion canal. Silt sediments are collected in flowing state and transported either to silt sites or to sedimentation tanks. After that compressed silt sediments are dried by means of active ventilation and removed layer by layer as upper layer dries. After complete removal of silt sediments, base, bed of purified pond section, is restored, and said procedures are step-by-step repeated in successive purification of all sections of first area. Before purification of second working area round dam is erected again in last section of first working area of treatment, separating it from second working area, which is blanked off. First working area is joined to additional output collector with branch duct and opened, after which purification and restoration of sections of second working area are carried out. After finishing purification works ground dam, which was re-erected between two working areas, additional input and output collectors are removed, and second working area of pond is opened for functioning.

EFFECT: ensuring possibility of functioning of purification plants biological ponds without stopping them for purification.

8 dwg, 1 ex

FIELD: hydraulic structures, particularly intake structures to take water for economic needs.

SUBSTANCE: front-entrance river water intake comprises spillway dam and water intake with two or more parallel setting chambers and transversal water-accumulation gutter having bottom located over water surface during setting chamber flushing. Width of side setting chamber in plane view in stream direction gradually increases in accordance with the equation y=(2h/S2ch)(x2/2), where h is assumed expansion in the end of side setting chamber, Sch -s length of side setting chamber. Side walls of transversal water-accumulation gutter may rotate about fixed axis by means of driving mechanism.

EFFECT: possibility to increase water cleaning efficiency due to transversal water-accumulation gutter wall rotation and possibility of water taking from upper, clean, layers inside setting chambers.

8 dwg

Sump // 2323294

FIELD: hydraulic structures, particularly sediment base gates, sand sluices and structures for arresting waterborne material, namely water cleaning devices used in water intake for economical needs.

SUBSTANCE: sump comprises inlet regulator sluice, working chamber, outlet regulator sluice with flushing gallery and pressure slice spillway installed in outlet regulating sluice in front of working gate. Impact baffle is installed behind working gate in slot provided with emergency gate installation. Pressure sluice spillway may extend in vertical direction or may be inclined and made as chute.

EFFECT: increased efficiency of water cleaning due to pressure sluice spillway usage, which provides water taking from upper clean water layers inside sump.

3 cl, 5 dwg

FIELD: hydraulic structures, particularly cleaning device to take water for economic needs, namely sediment base gates, sand sluices and structures for arresting waterborne material.

SUBSTANCE: desilting basin comprises inlet check sluice, working chamber, outlet check sluice with flushing gallery and pressure spill-way. Working chamber width gradually increases in flow direction. Pressure spill-way may be extended and is installed at outlet check sluice inlet upstream of working gate. Impact baffle is installed downstream of working gate in groove provided for emergency gate installation. Extendable pressure spill-way may be vertically arranged or inclined and used as inclined canal.

EFFECT: increased efficiency of taken water cleaning, possibility to take water from upper cleaner stream layers inside basin.

3 cl, 5 dwg

FIELD: hydraulic building, particularly treatment plants to be used for water intake for economic needs.

SUBSTANCE: intermittent flushing settling basin comprises inlet sluice regulator, working chambers, outlet sluice regulator with flushing gallery. Flat sheets rotating about sheet axes are installed in dead space of working chambers so that the sheets are transversal to flushing flow direction. Axes of sheet rotation are secured to side and jet-guiding walls and are located over flushing stream depth. Cuts may be created in lower flat sheet parts.

EFFECT: increased flushing efficiency due to flushing flow impingement upon flat sheets, which press flushing flow to bottom under sheet gravity to improve washing-out of precipitations.

2 cl, 5 dwg

FIELD: construction.

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: 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

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

The invention relates to the field of hydraulic engineering and can be used for protection of waterworks and pumping stations from plant residues and floating debris

The invention relates to a device for producing or collecting water from surface water sources to protect water intakes from falling sludge

The invention relates to techniques for mechanical wastewater treatment and can be used in urban water supply and sewage farms and enterprises with self-contained sewage treatment

The invention relates to techniques for wastewater treatment

The invention relates to hydraulic devices designed for mechanical purification of water on large water intakes, mainly pumping stations systems of technical water supply of fossil and nuclear power plants

The invention relates to hydraulic engineering and can be used for purification of water from sediment and debris at the intake

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

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