Hydraulic structure attachable de-icing coating (versions)
FIELD: mechanical engineering.
SUBSTANCE: hydraulic structure 1 attachable de-icing coating, for example, HPP grooves and gates is implemented in 2 versions. Plate 2, 3 of polymer anti-adhesive material coating based on ultra-high molecular polyethylene with molecular weight of not less than 3 million carbon units with addition of from 2 to 4 % of either molybdenum disulphide, or titanium dioxide, or from 5 to 10 % of graphite, having increased linear expansion coefficient, are fixed on structure with temperature gaps. Plate fastening is made without gaps in one fixation point either by one fixation line with T-shaped grooves and clamps, in other plate attachment areas enabling possibility of its thermal expansion or shrinkage by making fastening seats elongated, diverging from fixation hole or by extended performance of grooves or performing grippers with moving plates. Flexibility range in each assembly is 0.014…0.02 from remoteness to center or fixation axis. Adjacent plates edges have chamfers forming angle of no less than 40°.
EFFECT: under thermal compression and expansion of plates icing peels off, reducing damage from icing.
7 cl, 16 dwg
SUBSTANCE: corrugate tubing for load-carrying structures of underground channels comprises a corrugate metal sheet of a rectangular shape in plan, made with perforated holes on a part of the surface and having side and end stiffening ribs. At the same time stiffening ribs along the perimetre of the specified sheet are arranged in the form of metal plates arranged perpendicularly to the sheet and welded to its edges with adjacency of corrugation ends to the side surface of two oppositely arranged plates. Besides, in the specified plates there are holes for fastening bolts, and perforated holes are arranged to inject a mortar to fill cavities between corrugate metal sheets and the surface of the underground channel or the defect load-carrying barrier structure.
EFFECT: reduced weight and dimension of a tubing, lower labour intensiveness and timing of construction.
SUBSTANCE: turbine water conduit comprises an internal metal shell and an external reinforced concrete lining covered with a network of cracks of various sizes. The water conduit is located in a bottom face of a concrete dam and is rigidly fixed to the dam. The water conduit is equipped with a protective coating, which is made by application of a heat-insulating paint layer (liquid heat-insulation material) on the external surface of the reinforced concrete lining, which ensures, due to heat-insulation of reinforced concrete lining against atmospheric air, improved stressed-deformed condition of the turbine water conduit, and due to hydraulic insulation - protection of reinforced concrete lining against damaging exposure of atmospheric water. The heat-insulation paint is applied with the turbine water conduit filled with discharge water, which ensures opening of cracks on the surface of the reinforced concrete lining with its pressure.
EFFECT: high efficiency of increasing reliability of an operated steel reinforced concrete turbine water conduit.
3 cl, 3 dwg
SUBSTANCE: sealing of a movement joint of steel reinforced concrete (reinforced concrete) pipeline sections is arranged in a cavity at the inner side of the pipeline and comprises a metal bearing element and a flexible sealing element attached to a metal lining of sections that adjoin the joint. The bearing element is arranged in the form of separate rods located at the distance from each other with compensators in their middle part, installed in an expanded part of the joint and directed towards the outer side of the pipeline. Ends of rods are connected to each other by means of circular elements fixed to the metal lining of pipeline sections adjacent to the joint. At the same time the flexible sealing element is arranged according to the shape of the bearing element rods.
EFFECT: high tightness of a sealing and increased reliability of its operation.
8 cl, 8 dwg
SUBSTANCE: in suggested design of discharge composite reinforced concrete (reinforced concrete) filled water conduits, arranged at slope of soft soils, consisting of separate sections and having a cog in basement part of sections, cog arranged in basement part of each section arranged at top side with ledge having horizontal surface, onto which basement part of end section rests of above-arranged adjacent section, in which the basement part in zone of rest is arranged as horizontal. Horizontal surface of cog ledge is arranged with coating with low indices of shift resistance.
EFFECT: increased operational reliability.
2 cl, 2 dwg
FIELD: hydraulic structure building and repair, particularly to construct and repair power tunnels of hydroelectric plant.
SUBSTANCE: method involves forming concrete tunnel lining; consolidating ground around concrete liner by injecting grouting mortar in rock and forming damping layer between concrete lining and grouted ground. Damping layer forming between concrete lining and ground is created after tunnel filling with water under working pressure and after concrete lining curing under water pressure for 1.5-2 years. After that water is discharged and gaps between concrete lining and grouted ground are detected. Damping layer is created by plugging space beyond the lining by injecting resilient grouting mortar in spaces between outer lining surface and ground massif. The resilient grouting mortar has modulus of elasticity equal to intermediate value between that of concrete lining material El and that of ground massif Eg.
EFFECT: increased tunnel service reliability due to reduced loads applied to lining.
FIELD: hydraulic engineering, particularly water conveyance structures of hydroelectric power plants and hydroelectric pumped storage power plants.
SUBSTANCE: water conveyance structure comprises composite reinforced concrete pipeline located at prepared base and provided with enclosing structure with covering forming cavity above prepared base. Pipeline is located inside the cavity. The water conveyance structure is provided with air heating means to heat air inside the cavity in cold period up to temperature exceeding 0°C. In the case of composite reinforced concrete pipelines usage the pipelines are located one near another and the enclosing structure covering defines cavity for all pipelines receiving. The covering may be at least partly formed of translucent material.
EFFECT: increased control reliability and structure life, reduced maintenance costs.
4 cl, 2 ex, 4 dwg
FIELD: hydraulic building, particularly to erect hydraulic structures and to built, reconstruct and repair pressure pipelines subjected to atmospheric actions.
SUBSTANCE: water pipeline comprises metal facing and reinforced concrete shell. Outer reinforced concrete shell surface is provided with roofing cover made of corrosion-resistant sheet material. Vent channels are formed between roofing cover and reinforced concrete shell. The vent channels may be provided with air intake devices having gates provided with automatic or manual drives. Removable inventory air dryers and air heaters may be arranged in vent channels.
EFFECT: increased service life and increased resistance of reinforced concrete shell subjected to repeatedly freezing and thawing due to provision of dry concrete condition during pipeline operation.
5 cl, 2 dwg
FIELD: building, particularly service line building on strongly-compressible ground base.
SUBSTANCE: underground channel is defined by members having rectangular cross-sections supported by pile foundation and having upper and side walls formed of heat-insulation material. Underground channel has flat plate located above the members. Flat plate edges exceed outer bounds of the channel and built in fill-up ground. Porous material is located between flat plate and the members.
EFFECT: prevention of non-uniform ground surface deformations above the channel during usage thereof and reduced depth of channel building.
SUBSTANCE: sluice gate contains the housing 1 with the guides 2 in which the sluice 3 is installed which is connected with the lifting device. The housing 1 and the sluice 3 are made with devices for sluice preload through seals to the sealed surface 4 of the housing 1. The lifting device includes the running screw 5. The guides 2 of the housing 1 are designed inclined. To the vertical sluice 3 the slides 6 or rollers are fixed which partially enclose the inclined guides 2. Slides 6 or rollers can move along the inclined guides 2 together with vertically installed sluice 3. The axis of the running screw 5 is located obliquely to the vertical sluice 3 and parallel to the inclined guides 2 of the housing 1.
EFFECT: when opening the sluice gate the sluise together with seals leaves parallel to the sealed surface and seals aren't damaged by the sealed surface, when closing the sluice gate the sluice together with seals parallel approaches to the sealed surface and the seals aren't damaged by the sealed surface.
SUBSTANCE: sluice gate comprises a frame 1 vertically installed in a tray and a shield 2, capable of vertical displacement inside between side ribs of a frame bar. To the shield 2 a slider is fixed with thread, which may move along the thread during rotation of a worm screw 6 passing via the slider, connected with a drive 7 fixed in the upper part of the frame. The drive 7 provides for rotation of the worm screw 6 in one or opposite directions. The shield 2 has at the side of the upper reach a shell with stiffening ribs. The shell of the shield 2 is made in the form of a trapezoid with a small base, facing towards the bottom of the frame 1. End walls of the shield 2 shell and inner end walls of the bar in the lower part of the frame 1 have the same angle α of inclination from the vertical line towards the bottom of the shield 2. The shield 2 has seals, which may be pressed by their working surface to the sealed surface of the frame bar 1. Seals are arranged on opposite inclined ends of the shield 2 shell and the small base of the shield 2 shell, between the frame 1 and the above ends of the shield 2 shell. Each of frame 1 bars in its underwater part changes from its partially underwater inclined part into the vertical above-water part. The length of the inclined part of each frame 1 bars is more than the length of each of end walls of the shield 2 shell and is parallel to inclined end walls of the shield 2 shell.
EFFECT: invention makes it possible to eliminate friction of seals against a frame during opening and closing of a gate, which increases their service life.
SUBSTANCE: autocontroller is made in the form of a flat lock, comprising a span and a tight and air-filled cavity along the entire width of the lock. The controller's cavity is attached to a plate installed as capable of movement in lock guides by means of a worm mechanism. The lock is equipped with side and rear rollers.
EFFECT: increased reliability in operation and economic effectiveness, due to increased accuracy and speed of control, reduction of inefficient water discharges and simplified device design.
SUBSTANCE: gate comprises a device for lifting and lowering of a gate, a vertical embedded frame and a flat shield. The shield comprises a steel shield frame with vertical and horizontal stiffening ribs, casing, vertical side seals and a horizontal bottom seal. The casing of the steel shield and its seals are made in the form of a solid channel-shaped non-metal web of a material, for instance, rubber. The bottom seal of the shield is made in the form of a lower end of the channel-shaped web, and side vertical seals of the shields - in the form of rectangular ends of its vertical shelves.
EFFECT: increased tightness of a gate, reduced value of steel shield deformation, simplified design of a gate and technology of its manufacturing.
FIELD: water supply engineering.
SUBSTANCE: invention concerns production of water supply aggregates with adjustable discharge outlets. Plain surface gate for spillway aggregate includes vertical crib and flat screen out of plating formed by metal sheet and rectangular shield frame. A couple of horizontal stiffening ribs of plating is made in the form of peripheral edges bent back. Racks of vertical frame corners directly adjoining gate plating are oriented towards slots in crib and positioned in the slots in cluster with vertical plating edges and P-shaped rubber gasket. Supporting bracket includes vertical edge of plating and vertical edge of frame corner rack with common welded end seam.
EFFECT: enhanced rigidity of gate screen, reduced amount of welding operations and expenditure of costly alloy steel.
SUBSTANCE: hydroseal is arranged in shaft structure formed by embedded parts, comprises cloth fixed in frame with sealing around its perimeter, which is transported by support wheels along guides on the surface of shaft structure, and includes booster devices installed along cloth perimeter, and booster devices comprise drive mechanisms, rods of which are connected to movable elements represented by lever system, which contains booster levers equipped with rollers and installed on support flanges with the possibility of rotation in plane that is perpendicular to cloth, which are hingedly connected to rod and are evenly spaced along cloth length. Booster levers are equipped with side guides that are also arranged in the form of levers with rollers, which are rigidly fixed in booster levers at the angle to the latter. Support flanges are installed with the possibility of their height adjustment. Cloth in longitudinal direction is arranged as maximally flexible, and in transverse direction cloth is arranged with maximal rigidity. Cloth flexibility in longitudinal direction and transverse direction is determined depending on value of cloth sagging, curvature of sealed surface or width of sealed opening, value of distributed load, i.e. liquid pressure, module of material elasticity, working thickness of cloth in longitudinal and transverse directions.
EFFECT: higher reliability of hydroseal mechanisms operation and tightness of water channels isolation together with simplification of its design.
6 cl, 3 dwg
FIELD: hydraulic building, particularly river and marine engineering flood control structures.
SUBSTANCE: structure comprises protective walls arranged in continuous row and installed along flood control dam or along bank slope on side inclined surface thereof facing the water area. The walls are pivotally secured to dam or bank slope ledge formed on above inclined side surface. Protective walls have positive floatability. Upper base of dam or bank slope is provided with dampers and electromagnets with limbs installed in series and adapted to cooperate with protective walls. Executive device of the damper is spring-loaded rope or rubber cable having free end connected to protective wall. Protective walls are provided with longitudinal tie made of magnetic material. Electromagnet limb ends have bevels equal to that of longitudinal tie so that protective walls installed in working position are inclined to water area surface. Protective walls are provided with upper longitudinal connection closure. Side ends of protective walls are profiled. Reinforced side inclined surface of the dam or bank slope and reinforced upper dam base or designed reinforced upper base of bank slope are provided with jacket. The jacket is made as panels densely joined one to another.
EFFECT: increased reliability and automatism of flood control.
FIELD: hydraulic building, particularly engineering riverside and marine flood-control structures.
SUBSTANCE: structure comprises pool built along dam adapted to control flood or along bank slope. The pool is provided with drainage tubes with one-way check valve and pipes to supply water from water area. Installed in the pool are protective walls having positive floatability and arranged in continuous row. Protective walls may be displaced in vertical direction. Upper pool part is provided with semi-spherical vault with blocking surface. Overhear closure is mounted along upper end of protective walls. Pool has body and removable dome and is fastened to bridge provided with barrier. The bridge is mounted on base installed on vertical fixed support piles driven in coastal strip and spaced apart one from another. The base is connected with embedded reinforcement members of retaining panel forming slope jacket. Bridge barrier is provided with vertical ribs supported by slope jacket. Protective walls are rigidly connected with hollow durable cylinders from below. The cylinders have packing means arranged at tops thereof.
EFFECT: increased reliability of coastal strip protection against floods, improved automaticity, reduced economic losses.
FIELD: hydraulic strictures, particularly river and marine engineering structures adapted to control floods.
SUBSTANCE: structure comprises continuous row of protective barriers pivotally connected by the first end to plates arranged along upper base of protective dam or bank slope to provide rotation and fixing thereof in working position, underwater mechanisms arranged along protective barriers and cooperating with them. Underwater mechanisms are spaced apart and transmitting translational movement of pistons with rods into protective barrier rotation. Underwater mechanisms are formed as cylinders and pistons with rods installed in each cylinder. Each piston rod is provided with sealing members and has through longitudinal orifice formed along vertical axis of piston and rod thereof. Cylinders are communicated with water area through drainage pipes adapted for water runoff and provided with check valve for water entry from water area. Outlet orifice of each drainage pipe is located above average water level of water area, inlet drainage pipe orifice for water inlet is located 100-150 mm above upper base of protective dam or bank slope. Piston rods are connected to protective barriers through rotary cables which pass over pulleys supported by brackets or through rotary pull bars. The structure has spaced apart supports installed transversely to protective barrier row and secured to plates. The supports have edge inclined towards offshore water area surface.
EFFECT: increased reliability of flood protection and improved hydraulic structure reliability, enhanced automaticity of the structure.
SUBSTANCE: source of high or ultrahigh pressure are electrically isolated electrodes connected on the non-working end to the generator of impulses with a high or ultrahigh potential difference. The electrically isolated electrodes are mounted symmetrically in the conical or hemispherical bell combining in itself the role of concentrator of pressure from electrohydraulic effect at the corona discharge in the bell with subglacial water and the role of negative electrode. The rope system is implemented according to the flexible shaft layout.
EFFECT: offered invention improves technological effectiveness and efficiency of the device for clearing from ice of open reservoirs and water courses.