Flowing damless hydraulic turbine

FIELD: power engineering.

SUBSTANCE: flowing damless hydraulic turbine comprises a pontoon 1 with a bearing stand 3, on which by means of roller supports 4 there are inclined paired rotors fixed coaxially. Rotors are arranged in the form of a shaft 5 with blades 6. Rotors via hinged couplings 7 interact with a power takeoff shaft 8, and via a sprocket 9, rigidly fixed on the shaft 8, with a multiplier and a power unit.

EFFECT: simplified design of a hydraulic turbine, reduction of its dimensions and provision of the possibility to use it on small rivers and streams for power supply to individual households and farms.

3 cl, 5 dwg


The invention relates to the field of small hydropower, and more particularly to a flow dam to microhydroelectric designed to convert water flow into electricity using turbines submerged in the shallow water of rivers and streams.

Known channel dam hydroelectric power plant, installed in the containing flow along the banks of the river diversion channel in an open top box, hydropower installation in the form of a bladed turbine situated on the horizontal axis and optimally submerged in water while the unit is mounted on two oppositely located concrete bases or on the pontoon. Safety fence consists of concrete piles scored at the bottom of the river (patent RF №2131993, IPC F03B 13/00, publ. 20.06.1997 year).

However, this setting is characterized by the presence of a large number of construction works (concrete coastal wall-to-wall flow, the erection of the wall of the separator and so on), in addition, for performance of this hydroelectric power station needed a powerful stream of water, making it impossible for her to use on small rivers and, especially, the streams.

Known dual dam turbine Fedchyshyn V.G., including pontoon platform, held under water in stretching the cables, the carrier rack and oonie rotors with blades, kinematically associated bevel gear shaft of the energy Converter and having a unidirectional rotation when the rotor blades are placed under water, and the blades are made double. The rotors are placed on the consoles streamlined, located on both sides of the carrier rack. Sealed underwater generator enclosure is equipped with a compressed air tank and reducer (RF patent No. 2109165, IPC F03B 13/12, publ. 20.04.1998, prototype).

However, these designs in mind a large number of kinematic relations complicate the design and reduce its reliability. In addition, the installation is characterized by the presence of a large number of construction works, the need for sealing rotating shafts of the rotors and regular control mechanisms for lubrication conical and other transmission and control flow. It should also be noted that completely submerged blade turbines with the same dimensions have a lower efficiency than with partially submerged by water wheels, and do not exclude the possibility of jamming of the rotary blades of bulky waste. In connection with the foregoing, the use of the turbines on small rivers and streams to supply power to individual consumers or farmers economically not LeSabre.

Task to be solved by the claimed invention is directed, is to simplify the design of the turbine, reducing its size and enabling its effective use in small rivers and streams to supply individual and farms.

This technical result is achieved in that the flow dam turbine consists of a pontoon with the carrier rack, on which by means of roller bearings coaxially fixed pair of angled rotors, made in the form of a shaft with blades. The rotors by means of universal joints are mutually connected with a PTO shaft and through the sprocket rigidly mounted thereon, with the multiplier and the unit, and the angle of inclination of the rotor and the angle of the mating side edges of the blades with the axis of the rotor shaft are equal and in the range of 45-60°. The universal joints in each pair of rotors are mounted with an offset of 90°, and the blades of one rotor are rotated blades other ½ of the angle between the blades.

The essence of the claimed invention is illustrated by drawings:

- Figure 1 - scheme of the mechanism;

- Figure 2 is a view of the rotor in the direction of arrow A;

- Figure 3 is a view of the rotor in the direction of arrow B;

- Figure 4 is a view of the turbines from above;

- 5 - graphs of torque (Mkr) and angular velocity (W) (as a percentage) of one four-bladed Roto is and rotor angle of 45° for the rotation of the blades 180°.

Flow dam turbine consists of a hermetically made in the form of a two-edged boats pontoon 1, using 2 ropes attached to the bottom or shore, is fixed in the desired position. The depth of immersion of the whole structure is governed by the sand is poured into the compartments of the pontoon 1. On the pontoon 1 mounted supporting rack 3, roller bearings 4 (or bearing pins) which is fixed angled rotor, made in the form of shaft 5 with 6 blades. The shaft 5 of the rotor by means of an articulated coupling 7 is connected to PTO shaft 8, is rigidly mounted thereon a sprocket 9 which by means of a chain transmission is associated with a multiplier and a power unit (not shown). Articulated coupling 7 in each pair of rotors installed (to reduce non-uniformity) offset by 90°. The optimal tilt angle of the rotor from the vertical (in the plane perpendicular to the flow of water) detected during the experiments and is 45-60°. The inclined position of the rotors allows you to view from under the water all the kinematic connection of the rotor without increasing the diameters of the circles of the blades. The side edges of the blades are at an angle to the axis of the shaft 5 of the rotor, the angle of inclination equal to the angle of inclination of the rotor and is 45-60°. The equality of the angles of the side edges of the blades relative to the axis of the shaft 5 R the Torah and the rotor angle due to two reasons, namely, the minimum lateral clearance between the side edges of the blade 6 and the side of the pontoon 1, which implies the use of the shortest of the rotor shaft, while the long shaft is characterized in the process, a large bending moment, vibration and high load support. The second reason is the lack of resistance to movement of the blades above the water level. The number of blades 6 may vary depending on the degree of non-uniformity of rotation and the need to increase the torque on the one hand and the possibility of passage of debris between the blades on the other. To reduce non-uniformity of rotation of the shaft 8 PTO blade 6 in each pair of rotors are offset relative to each other by ½ of the angle between the blades, so when the four-bladed rotor, this angle is equal to 45°, with a six-bladed - 30°. When the number of blades 6, is depicted in Figure 5 the curves are smoothed, however, decrease the angle between the blades 6 (when the increase in their number) reduces bezlopastny space and may contribute to their driving floating debris to a complete stop turbines.

The proposed turbine operates as follows. The flow of water around the bow of the pontoon 1, affects submerged blades 6 of the rotor, the latter rotates under the action the receiving water flow, pass by articulated coupling 7, the rotation shaft 8 PTO and through the sprocket 9, through chain transfer to the multiplier and the unit.

Thus, structural features of the claimed turbines (with solutions that ensure smooth rotation PTO) determine the simplification of the structure, its small size and the efficiency of the turbines on small rivers and streams to supply individual and farms.

1. Flow dam turbine, characterized in that it contains a pontoon with a carrier rack, on which by means of roller bearings coaxially fixed inclined paired rotors, made in the form of a shaft with blades and through a swivel coupling that interacts with PTO shaft, and a sprocket rigidly mounted on the shaft, with the multiplier and the unit, the angle of inclination of the rotor and the angle of the mating side edges of the blades with the axis of the rotor shaft is equal to 45-60°.

2. Flow dam turbine according to claim 1, characterized in that the hinge coupling each pair of rotors are mounted with an offset of 90°.

3. Flow dam turbine according to claim 1, characterized in that the blades in each pair of rotors are rotated to each other by 1/2 of the angle between the blades.


Same patents:

FIELD: power engineering.

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FIELD: electricity.

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FIELD: power engineering.

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FIELD: power engineering.

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Tide power system // 2326264

FIELD: electric power engineering.

SUBSTANCE: invention is related to electric power engineering and may be used for generation of electric power at the account of ocean tides, ocean waves, wind from the shore by integration of tide energy with hydrogen technology. Barrage for energy extraction from potential energy contained in ocean tides, consists of multiple support stands installed with the same interval from each other in the ocean along the perimeter line and attached to the sea bottom. Panels are installed one above the other and fixed between pairs of neighboring support stands. Gaps between every panel and support stands are leak-tightened. Pairs of support stands from two rows of support stands for caissons. Support panels are placed between every pair of opposite support stands from the mentioned two rows so that caisson is supported by support panels, so that they form platform between two rows for caissons. In every caisson there are turbines with facilities that provide for water passing through the turbine by operator command. Electric generators are connected to at least one turbine. Barrage has no gaps or slots. As a result the ocean is separated from the area inside the barrage, excluding time, when operator provides water passing through turbine for electric power generation. Invention works at different loads and functions as power complex with electrolyzers and fuel elements for generation of electric power by request, excluding by that impulse character of traditional tide energy. Hydrogen may be produced as target product.

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6 cl, 17 dwg

FIELD: engineering industry.

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2 dwg

FIELD: power engineering.

SUBSTANCE: invention relates to hydroenergetics, to low pressure flows of seas, rivers and water outlets of hydro electric stations and reservoirs. A tidal hydroelectric plant contains a cylindrical body of the machine compartment with a gear box and electric generator of the tail hydroturbine with arms, mounted on its axis and the axis of rotation. On the upper part of the body is fixed a flat pylon, on the end of the pivot system and the axis of rotation. The body is suspended on a crossbeam in the passage of the catamaran for lifting the power station to the level of the servicing platform on the grooves of the support bridge pier, connected by the arch with a lifting mechanism. Arms of the hydroturbine are made short and wide sweptforward on the leading edge and with a concave surface in the form of a parabolic curve, and a convex surface of the tailpiece perforated with slanting slits.

EFFECT: reduces the depth of the low pressure power stations, increases the hydrodynamic quality of the hydroturbines arms, and ensures periodic lifting of the power station from the water.

3 cl, 4 dwg

Water power device // 2361109

FIELD: engines and pumps.

SUBSTANCE: invention is related to the field of renewable power sources, namely to use of potential energy accumulated in water reservoirs and its conversion into other types of energy, mostly in electric energy. Water power device comprises the following components that interact with each other - platform, multiplier, power generator, the first and second shafts, in which according gears are installed, overrun clutches and sprockets that interact with chain. Device additionally comprises the first and second trolleys. They are connected to each other by chain and are installed in appropriate inclined guides with the possibility of reciprocal motion. Appropriate reservoirs are installed in trolleys, being equipped with exhaust water valves. In upper points reservoirs interact with appropriate newly introduced inlet water valves and units of position fixation, and in lower points - with end supports.

EFFECT: makes it possible to simplify design and increase efficiency of energy transformation.

7 cl, 6 dwg