(57) Abstract:Usage: in the hydropower industry. The inventive shaft mounted impeller with the blades and the mechanism of their rotation. The mechanism is made in the form of a system of mobile and fixed relative to the axes of the gears with a gear ratio of 2/1. Movable relative to the axes of the gears are mounted on axes of the blades, fixed - axis wheels. Movable gear is connected along the perimeter, and with a fixed - radius by a chain transmission. 2 Il. The invention relates to the field of hydropower.Known hydro generator comprising a generator mounted on the shaft of the impeller with the blades and the mechanism of their rotation, made in the form of a system of mobile and fixed relative to the axes of the gears, and movable relative to the axes of the gears are mounted on axes of the blades and the fixed - axis wheels and the movable and stationary gears have a gear ratio of 2/1.The disadvantage of this product is the design complexity of the drive rotation of the blades of the wheel.The technical result is to simplify the design of the unit.The specified technical and installed on the axes of the blades and the fixed stars, placed on the shaft of the wheel with a gear ratio of 2/1. When the movable and stationary sprocket connected simultaneously on the radius and the perimeter of the wheel through a chain.Comparative analysis with the prototype shows that the proposed device is different from the prototype mechanism of rotation of the blades. Thus, the claimed device meets the criteria of the invention of "novelty."The study of other known technical solutions in the art, the features distinguishing the claimed invention from the prototype, have not been identified and because they provide the claimed technical solution under the "significant differences".In Fig.1 shows a side view of the apparatus; and Fig.2 - section b-B in Fig. 1.The unit contains a water wheel 1 with a fixed axis 2, rotary blades 3, rotatable about its axis 4 in bearing assemblies 5. The wheel is mounted on the supports 6 in bearing assemblies 7, the yoke of which are mounted two fixed sprocket 8. On the 4 axes of the blades 3 are attached to the movable sprocket 9 with the number of gear teeth twice, che is Gata based on the conversion of the energy of the water flow in the electrical as follows: the efficiency of the wheel is on the principle of installation of each blade in position, when the wheel gets the highest torque in each moment of time. This is possible through the mechanism of rotation of the blades, which operates as follows: under the action of the water flow F on the blade 3 of the wheel 1 is rotated around its axis 2 and the fixed sprocket 8. By means of a chain drive 10 sprocket 9 and the associated blades 3 are rotated around their axis 4. When one revolution of the wheel 1 (360about) blade 3 in accordance with the gear ratio of 1/2 between the sprockets 8 and 9 is rotated 1/2 turn (180about), i.e. each time the blades at the points indicated on the sketch on the perimeter of the wheels occupy a certain position in order to obtain from each blade maximum torque for transmission to the generator 11.Compared with the prototype of the proposed gidroenergoproekt has the advantage that the transmission of torque to the movable sprocket directly from fixed stars, bypassing intermediaries. GIDROENERGOPROEKT comprising a generator mounted on the shaft of the impeller with the blades and the mechanism of their rotation, made in the form of a system of mobile and fixed relative to a axes of the blades, and fixed - axis wheels, characterized in that the movable gear is connected along the perimeter, and with a fixed - radius by a chain transmission.
FIELD: hydropower engineering.
SUBSTANCE: invention is designed for use in lower power hydroelectric power stations. Proposed hydraulic turbine contains housing with end face covers, intake and exhaust branch pipes. Housing accommodates two rotors and streamlined guide. Rotors are made of made tubes provided with longitudinal cut and installed so that part of tube plays part of plate and other part plays part of rotor housing. Hydraulic turbine is furnished with system including pump, distributing device and pipelines providing pressure of water in tandem spaces between plates and housing.
EFFECT: reduced labor input in manufacture of hydraulic turbine.
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: 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
FIELD: hydraulic engineering.
SUBSTANCE: invention is designed for converting kinetic energy of water flow of small rivers and tides. Proposed hydraulic turbine has housing and wheel with helical blade provided with flange in form of cylindrical spiral secured on blade for changing outreach of flange.
EFFECT: increased transmission of flow to wheel, reduced losses for friction against stationary housing, increased efficiency of turbine.
FIELD: hydraulic power engineering.
SUBSTANCE: invention is designed for creating stationary and transportable modular hydraulic plants and setting up unit hydraulic power stations. Proposed water-wheel generator has body, shaft with central bevel gear, planet pinion members, each containing blade and shaft with bevel gears on ends, one end of shaft being coupled with central gear. Central bevel gear is rigidly secured on one of ends of central shaft non-rotating around its axis and arranged vertically. Planet pinion members are arranged around central radially and uniformly. Shaft of each planet pinion member with bevel gears on its ends is made single-section, and bevel gear belonging to said shaft and pointed to side of blade of said planet pinion member engages with bevel secured rigidly and coaxially to smaller spur gear of blade reduction gear. Larger spur gear engages with smaller one, and it is secured on axle of blade installed vertically. Each blade rests by ends of its axle for rotation of brackets mounted by bases on cylindrical housing installed for rotation coaxially relative to central shaft, and tops of brackets at both ends of central shaft are connected by ring rims. Upper rim, being drive wheel, is coupled with energy converters. Central shaft rests by both ends with locking on framework provided with pontoon devices. Invention makes it possible to use river current energy with maximum efficiency at no adverse effect on environment caused by submersion of river flood lands caused by building of dams, energy of ocean currents, energy of tides and ebbs owing to use of blades with two points of support. Versions of design of water-wheel generators are provided in description.
EFFECT: simple design, high adaptability to manufacture and servicing of water-wheel generator.
5 cl, 5 dwg
FIELD: hydraulic power engineering.
SUBSTANCE: invention can be used for converting energy of small water flows with low flow rates and heads into electric energy. Proposed device contains water wheel made up of rigidly connected drum, side walls, blades and hub rigidly connected by spokes with drum, connected by mechanical transmission through reduction gear with electric generator, bearing units, supports, water supply and water outlet systems. It is provided with water holding member installed at a distance of 5-10 mm from lower, in vertical axis, pointed of side walls from side of working part of water wheel and made radially curved with angle of enclosure equal to 150-165° and width equal to width of water wheel. Each blade of water wheel is made in form of plates consisting of two parts, with angle in between equal to 120-140° and ratio of length of one part of plate to length of other part secured on drum being 1/1.5 - 1/2.0, with angle to tangential line in place of contact of plate and drum equal to 25-45°. Number of blades is chosen to provide blade-to-blade distance over outer perimeter of side walls equal to 0.25-0.35 m. Water is installed on axle secured on supports by means of hub and bearing units. Used as electric generator is induction motor connected with automatic control system including switching and measuring equipment unit to which units of field capacitors, thyristor converter and useful load are connected and regulating, protection and control unit connected with thyristor converter unit to which ballast load and field capacitor units are connected. Mechanical transmission is made in form of chain train whose driving sprocket is secured on spokes of water wheel.
EFFECT: increased efficiency, improved reliability and convenience in operation, simplified design of device.
FIELD: machine building.
SUBSTANCE: present invention pertains to hydraulic power development. A support arm with a hinge, enabling rotation and fixing the water pipeline in the direction of flow of water, allows for using the power installation as a flow power installation or as a wave power installation. Functional capabilities of the power installation are widened due to use of water pipelines with orthogonal turbines and an electric power generator under water on the support arm. The amount of electrical power generated can also be increased due to that, the blades are oriented in opposite directions for rotation of orthogonal turbines in opposite, unchanged directions, independent of the direction of flow through the orthogonal turbines. The inductor coil of the electric power generator is immoveable, has two-directional operation and is between neighbouring short-circuited rotors, each connected to its axle of the orthogonal turbine. The short-circuited rotors rotate in opposite directions, are fitted with small clearances from the inductor coil and are fixed using lining made from material with low sliding friction. As a result, there is increased efficiency of using energy of water passing through the flow part of the convergent-divergent water pipeline.
EFFECT: wider functional capabilities of a power installation with orthogonal turbines.
FIELD: engines and pumps.
SUBSTANCE: invention relates to electric power production devices. The proposed unit comprises a vertical support tower and rotation mechanism, the said tower having lower and upper platforms to form upper and lower water tanks. The upper platform tank bottom has a water discharge opening. The inner space between aforesaid platforms forms at least one vertical chamber arranged between aforesaid water tanks. The tower features also at least one horizontal partition located in the said inner space to make the bottom of every chamber. Every partition forms a discharge opening. Rotation mechanism is located inside each chamber and incorporates multiple buckets and rotary shaft. The said buckets. Feature open parts arranged at different angles. Aforesaid shaft is linked up with the buckets and, in operation, with one of the power generator shafts. The upper water tank is filled with water to be discharged downward via appropriate openings into the chambers below to produce electric power.
EFFECT: unit operating cyclically with external power supply and generating continuously electric power.
5 cl, 7 dwg
FIELD: motors and pumps.
SUBSTANCE: motor for fluid energy utilisation consists of a frame with an orifice. There are drums in the cylindrical chambers of the frame. They are installed on vertical shafts, which are cinematically coupled with electrical generators. Blades are attached to the external cylindrical surfaces of the drums along helical line so that front edge of each blade is shifted on one end of the drum in the rotation direction relative to the blade end on the second drum end by 1 or 2 intervals of blades arrangement on the drum. The width of orifice inlet is no less than the doubled blade width and no more than the drum diametre. The exit cone along flow axis is less than the inlet cone no less than in two times.
EFFECT: simple structure, improved reliability, increased efficiency factor and wide range of application.
FIELD: power engineering.
SUBSTANCE: invention is related to designs of plants for transformation of sea current energy into electric energy. Generator that operates at sea current comprises cylindrical jacket 19 with inlet and outlet nozzles 20 and 21, two power generators 1 installed parallel to each other with cylindrical body 3 and external rotor 4, installed outside body 3, and hydrodynamic drive 2, made in the form of blades 9, which are radially installed on external surface of external rotors 4 in both power generators 1. Power generators 1 are arranged as birotating and are equipped with internal rotor 5, installed inside body 3. Internal and external rotors 4 and 5 are connected to each other by means of reduction gear 12, cavity of which is filled with lubricating liquid, which provides for opposite rotation of rotors 4 and 5, and blades 9 are arranged as flat.
EFFECT: invention is aimed at higher efficiency factor of plant with reduction of its dimensions and simultaneous increase of power.
2 cl, 2 dwg