Minihydroelectric is designed to convert potential energy of water to generate electricity. Minihydroelectric contains installed on the dam, at least one siphon tubing with suction and discharging branches. In the inner cavity of the siphon pipe is a power plant with a drive mechanism. Starting system siphon pipeline includes located at the output of the adjustable valve. The drive mechanism of the power plant is located in the siphon pipe between protivookislitelnym device made in the form of the input socket in the form of a narrowing funnel, and an adjustable valve. This starting system is made in the form of a pump, a suction pipe connected with the siphon pipe in the upper part, and protivokataralnoe device further includes a solid or slatted apron located on the suction branch of the siphon pipeline with the ability to be moved and fixed in a predetermined position. The device has a simple design to ensure reliable operation. 1 C.p. f-crystals, 2 Il. The invention is that it may be appropriate for small businesses or farms.Known axial front turbine containing a wheel with a hub and blades, placed in the pipeline, in this case the generator is located outside of the pipeline .Positive property known technical solution is to install a generator outside the duct, but it does not solve the problem of effective building system as a whole.Known technical solution, which is a hydro-power plant, including the dam, the energy Converter of the water flow, and the energy Converter comprises at least one siphon pipeline energy Converter . The upper part of each siphon pipe connected by a duct manifold air flow, air turbo-generator, where the air turbine and the shaft of the latter is rigidly connected with the shaft of the generator.A disadvantage of the known technical solution is the low efficiency of the system due to the fact that during the generating of electrical energy provides its dual conversion: energy water movement into the energy of the air flow and energy of the air flow into an electrical energy, in Swayze, contains mounted on the dam, at least one siphon tubing with suction and discharging branches in the inner cavity of the siphon pipe is at least one power plant with a drive mechanism, and the system starts the siphon pipeline, including at the output of the controllable valve, the drive mechanism of the power plant is located in the siphon pipe between protivookislitelnym device and adjustable valve [3 - prototype].On the inlet and outlet of the suction and discharging branches are also lattice. Grilles are designed to prevent debris from entering the pipeline of foreign objects. However, despite the presence of the bell at the entrance of the suction branch, which performs the function protivoinfektsionnogo devices, grids are sources of cavitation, i.e. sources of air bubbles accumulating in the upper part of the siphon with the formation of an air cushion, which must be periodically removed to maintain the efficiency of the device.Adaca of the present invention is to increase the specific efficiency of small hydro power plants with ease-con who TRISTANIA contains installed at the dam at least one siphon tubing with suction and discharging branches in the inner cavity of the siphon pipe is at least one power plant with a drive mechanism, and the system starts the siphon pipeline, including at the output of the controllable valve, the drive mechanism of the power plant is located in the siphon pipe between protivookislitelnym device and adjustable valve, and starting system made in the form of the pump, a suction pipe connected with the siphon pipe in the upper part, and protivokataralnoe device further includes a solid or slatted apron, located on the suction branch of the siphon pipeline with the ability to be moved and fixed in the specified position.Protivokataralnoe device can also be made in the form of a raft, located on the surface of the water above the suction inlet of the siphon pipe and rigidly connected to the bottom or from the dam using the anchor system or corresponding metal buckles.The distance between the supports of the siphon plumbing, installed on the dam, and the distance from the horizontal powersports funds.In Fig. 1 shows a General view of minihydroelectric with protivookislitelnym device made in the form of the apron on the suction branch of the siphon pipe. In Fig.2 is an embodiment of minihydroelectric with protivookislitelnym device made in the form of a raft, located on the surface of the water above the entrance mouth of the suction branch of the siphon pipe.Minihydroelectric contains installed on the dam 1 with the supports 2, at least one siphon pipe 3 with 4 suction and discharging 5 branches. In the inner cavity of the siphon pipe 3 has a drive mechanism 6 power unit 7. Starting system siphon pipe 3 includes a pump unit 8, the suction pipe 9 connected with the siphon pipe 3 in the upper part. Siphon pipe 3 provided at the inlet of the intake branch 4 protivookislitelnym device.Protivokataralnoe device made in the form of the input socket 10 in the form of a tapering funnel rigidly connected with the suction branch 4 of the siphon pipe 3.Protivokataralnoe device may further include a solid or slatted apron 11, located on VG.1).In one embodiment, protivokataralnoe the device may be made in the form of a raft 13, located on the surface of the water above the inlet funnel 10 of the siphon pipe 3 and rigidly connected with the bottom or with dam 1 using the anchor system or corresponding metal buckles.The distance between the supports 2 of the siphon pipe 3 that is installed on the dam 1, and the distance from the horizontal surface of the dam 1 to the upper part of the siphon pipe 3 is selected from the conditions to their respective vehicles.Minihydroelectric works as follows.When running minihydroelectric include in the vacuum pump unit 8 when closed, the valve 12 to reduce the energy consumption for filling the cavity leaving the branches 5 of the siphon pipe 3. After filling with water the entire cavity of the siphon pipe 3 pump unit 8 is turned off with the maintenance of proper sealing. Opens valve 12 at the desired flow of water, which when passing through the siphon line 3 actuates the drive mechanism 6 power plant 7 (generator).Input socket 10 prevents repetitous the formation of air-to-water funnel on the surface of the water and the capture of air moving through the siphon pipe 3 water flow. Optimum performance protivoavarijnyh devices when possible change in the flow of water through the adjustable valve 12 is achieved by changing the position of the apron 11 and the corresponding dimensions of the float 13.Sources of information 1. RF patent 2002101, CL F 03 In 13/00, 1993.2. RF patent 2167334, CL F 03 In 13/00, 2000.3. Application France 2497296 A1, class F 03 13/12, 1980.
Claims1. Minihydroelectric containing installed on the dam, at least one siphon pipe with a suction and discharging branches in the inner cavity of which is a power plant with a drive mechanism, the system starts the siphon pipeline, including at the output of the adjustable valve, and the actuator power plant is located in the siphon pipe between protivookislitelnym device made in the form of the input socket in the form of a narrowing funnel, and an adjustable valve, characterized in that the starting system is made in the form of a pump, a suction pipe connected with the siphon pipe in the upper part, and protivokataralnoe device further includes a solid or lattice PV specified position.2. Minihydroelectric under item 1, characterized in that the distance between the supports of the siphon pipe, installed at the dam, and the distance from the horizontal surface of the dam to the upper part of the siphon pipe is selected from the conditions to their respective vehicles.
FIELD: oil and gas extractive industry.
SUBSTANCE: device has metallic hubs of stator and rotor, wherein crowns of stator and rotor are concentrically pressed. Crowns of stator and rotor are made of durable ceramics and are additionally equipped with connections, allowing to exclude non-controlled turning of crowns in hubs and spontaneous axial displacement thereof.
EFFECT: higher reliability and efficiency.
FIELD: turbines using kinetic energy of liquid flow.
SUBSTANCE: proposed turbine has turbine case , stay ring with cascade of stay vanes, wicket-gate mechanism with cascade of adjustable vanes, operating element with cascade of flange-mounted blades and drive shaft coupled with electric generator step-up gear, operating element chamber, and draft tube. It is also provided with straightening mechanism that has cascade of vanes, chain transmission that has sprockets and shafts; external and internal rims are made in cross-sectional areas in the form of ovals. Cascade of blades is made in the form of caterpillar cascade. Operating element blades are cylindrical in shape and hinge-joined through chain transmission whose drive sprocket is coupled with drive shaft. Flanges of operating element blades are provided with supporting rollers mounted in fixed supports and joined with chain transmission shafts at distances of two adjacent operating-mechanism blades; guides are made in the form of oval junctions joined with turbine internal rim in vicinity of their abutting against butt-ends of flanges carrying operating element blades.
EFFECT: enhanced turbine efficiency.
1 cl, 4 dwg
FIELD: mobile generator plants.
SUBSTANCE: proposed generator plant has frame that mounts power unit, foot-operated air pump, and compressed-air cylinders whose air lines communicate with generator plant. Control panel is electrically connected to output of electric generator vertically installed on generator plant housing and mechanically coupled with exciter and power unit made in the form of vertical-shaft pneumostatic motor. The latter has sealed case with inlet, outlet, and safety valves closed with cover that accommodates vertical rotor mounted in case and cover bearings and made in the form of shaft with two power drives attached thereto by means of U-shaped frames. Power drives are installed on either side of vertical shaft and spaced 180 deg. apart in horizontal plane. Each of them has a number of similar members symmetrically mounted one on top of other, their quantity being dependent of desired power. Each member is essentially rhombic plate made of light-mass and high-strength metal whose longitudinal axis is longest diagonal parallel to that of other power drive. Through ducts are provided on front ends of rhomb and L-shaped blind ducts, on its rear butt-ends. All these ducts are closed with covers kinematically coupled with drive cylinder piston. Compressed air fed to sealed housing opens covers, and unbalanced forces are built up on each member which set power unit in rotary motion. Air evacuation from sealed housing closes covers with the result that no forces are built up on drive members.
EFFECT: enhanced power output and torque.
2 cl, 21 dwg
FIELD: power engineering.
SUBSTANCE: device is designed for converting kinetic energy of free flow of water into electric energy. Proposed microhydroelectric station contains hydraulic turbine with horizontal axle of rotation connected with submersed sealed electric generator. Station is provided with carrying frame consisting of sections on ends of which shields are installed to form confuser at inlet of water flow, and diffuser at outlet. Slow speed generator is used as electric generator whose shaft is directly connected with shaft of hydraulic turbine consisting of separate sections mounted on bearing supports. Each section contains one or more blade propulsors displaced through equal angle relative to each other. Each propulsor has two blades pointed in opposite directions being essentially NASA section modified by provision of cavity on lower plane, maximum depth of which being from 10 to 14% of maximum height of section and installed on posts secured on shaft of hydraulic turbine for fixed displacement of blades in radial and angular directions.
EFFECT: reduced cost of manufacture and mounting.
FIELD: engine manufacturing.
SUBSTANCE: invention relates to method of operation of self-contained power station powered by diesel-generator set. According to proposed method of operation of self-contained power station powered by diesel generator set equipped with additional flywheel and disconnect clutch with automatic control members, additional flywheel is mounted on separate shaft which is connected with diesel-generator set by means of disconnect clutch. Preparatory operation is carried out to set power station into operation with subsequent overcoming of short-time starting resistances from consumer. Additional flywheel is connected to shut down diesel generator set by means of disconnect clutch. Power station is started under no load, and its coming to rated speed is detected by readings of generator shaft speed pickups. Load is connected and intensity of generator shaft speed drop is checked. Information is automatically transmitted to controller wherefrom, at termination of generator speed drop, signal is transmitted to disconnect clutch, and rotating additional flywheel is disconnected from diesel generator set, thus changing the set for accelerated mode of restoration of initial rated speed.
EFFECT: provision of power saving operation at stable conditions for overcoming designed resistance torque and short-time overloads exceeding capabilities of chosen supply source.
FIELD: hydraulic engineering.
SUBSTANCE: device is designed for converting kinetic energy of small and medium rivers into elastic energy. Proposed hydraulic unit contains hydraulic turbine installed on frame with bearings on its shaft, generator mechanically coupled with hydraulic turbine, stream shaper and device in form of plates to protect hydraulic unit from floating debris. Hydraulic unit has intermediate vertically and horizontally installed shafts with bearings interconnected by conical gears. Vertical shaft is arranged in well built near bank and communicating with river by channel made under level of maximum possible thickness of ice cover. Part of horizontal shaft connected with hydraulic turbine is arranged in said channel. Upper end of vertical shaft is connected with generator through ground horizontal shaft and step-up reduction unit. Stream shaper is made in form of flaps installed on shaft for turning to direct water stream of river to its central part between which turnable gate is installed for contacting with one of flaps to direct water stream to right-hand or left-hand side of hydraulic turbine.
EFFECT: provision of reliable operation all year round.
3 cl, 2 dwg
FIELD: power engineering.
SUBSTANCE: plant is designed for generating electric energy and pumping of water. Proposed device contains floating base in form of catamaran with channel between housing of catamaran in which water wheel with blades on its outer surface is mounted, and electric generator mechanically coupled with shaft of water wheel. Diameter of water wheel is less than its length. End faces of water wheel are covered, and front profile of water wheel blades is made to logarithmic spiral. Moreover, plant is furnished with water pump, and drive of electric generator is made in form of step-up harmonic gearing whose flexible gear is coupled with end face of water pump. Output shaft of step-up gearing is aligned with shafts of water wheel and electric generator, being coupled with water pump by step-up belt drive. Drive sheave of step-up belt drive is installed on shaft of electric generator. Controllable clutches are installed on shafts of belt drive.
EFFECT: improved reliability and enlarged operating capabilities of plant.
2 cl, 3 dwg
FIELD: machines or engines for liquids.
SUBSTANCE: device comprises converter for converting flow power into kinetic energy of rotation and hydraulic turbines connected in series. The hydraulic turbine is made of hollow load-bearing shaft-cylinder with conical deflectors on the bases. The semi-cylindrical blades are secured to the shaft-cylinder along the generatrix of the cylinder or at an angle to the generatrix. The load-bearing shaft-cylinder is inscribed into the inner ends of the semi-cylindrical blades, and their outer ends tightened by means of rings define multi-blade cylinder provided with variable buoyancy that is controlled by ballast in the hollow section of the shaft-cylinder. The hydraulic turbine can be submerged into water completely or partially and interposed between the bearings and connected with the actuating mechanism through flexible links, clutches, and gearings. The actuating mechanism comprise one or several massive inertia flywheels made of disk or drum or cylinder connected through clutches and gears with the consumer.
EFFECT: enhanced efficiency.
3 cl, 9 dwg
FIELD: electromechanical engineering.
SUBSTANCE: proposed generator primarily designed to supply with power borehole instrument of face telemetering system in the course of boring has internal stator and rotor; the latter mounts turbine in its front part that has casing carrying rectangular- or trapezoidal-section helical blades. These blades are free to vary their angle of lift depending on conditions of borehole washing with drilling fluid. Blades may be made of flexible material and have two parts of which one part is joined with turbine casing and other (loose) part is free to bend in transverse plane. In addition, blades may have variable stiffness in cross-sectional area and variable height of cross-section profile; loose parts of blades may be joined with ring. Blade turn limiter responding to maximal discharge of drilling fluid may be provided on the turbine casing.
EFFECT: enhanced operating reliability and extended variation range of drilling fluid discharge through generator turbine.
7 cl, 2 dwg
FIELD: hydraulic power engineering.
SUBSTANCE: proposed hydraulic turbine generators are designed for creating stationary and portable hydraulic plants of modular type. Generators have rotor with central shaft non-rotating around horizontal axis or vertical axis (as version) on which chain drive gears are rigidly fitted, each being coupled through independent chain drive with planet pinion members arranged radially and uniformly around central shaft. Each member has blade reduction gear consisting of gear of chain drive and of large and small cylindrical gears, the latter being coaxial and rigidly coupled with gear of chain drive of blade reduction gear, and large cylindrical gear is rigidly secured on axle of blade installed horizontally for generator (or vertically, as version). Each blade rests by ends of its axle for rotation on brackets secured on hubs by bases. Hubs are installed on both ends of shaft for rotation and tops of brackets at both ends of central shaft are connected by ring rims being drive wheels connected with energy converters by flexible drive.
EFFECT: provision of effective and reliable operation.
3 cl, 4 dwg