RU2477811C2 - Rotor-blade impeller of electric generating device based on magnus effect - Google Patents

Abstract

FIELD: power engineering.

SUBSTANCE: rotor-blade impeller of an electric generating device based on Magnus effect comprises a shaft, at least one rotor, blades and a ring of rotor rotation. The ring of rotor rotation is fixed on the body, is kinematically connected with the rotor to ensure rotor rotation around its own axis by means of rotor swinging on the ring edge. Blades are installed on the common shaft with the rotor and are a drive of this shaft.

EFFECT: simplified design of a unit, its higher capacity, reduced prime cost of its manufacturing, increased reliability and production of cheap power.

6 dwg

Description

FIELD OF THE INVENTION

The invention relates to the electric power industry and can be used to convert the energy of a moving medium (water, air, steam) into electrical energy.

State of the art

A known power plant with an active method of processing the wind, characterized by the use of a wind wheel with a horizontal shaft, radial blades in the form of rotors, a cowl is a body of rotating and fixed parts, drives for rotating rotors, a rotor drive electric motor and an electric generator, and the rotor drive electric motor further comprises or is made with integrated planetary gear

(see patent RU 2327898, IPC F03D 1/02, publ. June 27, 2008).

The disadvantage is that the rotors are driven by electric motors, and therefore this power plant cannot be started without supplying electricity from an external source of power supply, and then part of the electricity produced by it, as well as sufficiently complex drives for rotation, will be selected to ensure the operation of this power plant rotors, which increases the cost of electrical installation.

The closest in technical essence and the achieved positive effect and adopted by the author for the prototype is a wind turbine with Magnus rotors, characterized by a wind wheel with a horizontal shaft, radial blades in the form of cylinders, drives for rotating cylinders, which are made in the form of Savonius rotors, are installed on the axes of rotation of the cylinders and rigidly associated with them (see patent RU 2189494, IPC ⁷ F03D 1/00, publ. 09/20/2002).

The disadvantage is that Savonius rotors, which are built in cylinders and act as actuators, are half-cylinder blades, although they will make the cylinders rotate, but since the Magnus effect most fully affects rotation figures with closed surfaces (cylinder, ball), and the rotor Savonius is not such, then it will reduce the surface area of the cylinder, which is affected by the Magnus effect with the greatest result.

Disclosure of invention

In the claimed invention, the task is to bring the rotors into rotational motion around their own axis to use the Magnus effect due to the energy of the flow incident on these rotors in order to exclude the use of electric motors to rotate the rotors.

The technical result that can be obtained using the present invention is to simplify the entire design of the unit, increase its power, reduce the cost of its manufacture, increase reliability and obtain cheaper electricity.

The technical result is achieved by using a rotor-blade impeller of a power generating unit based on the Magnus effect, containing a shaft, rotors and blades, while it is additionally equipped with a rotor rotation ring mounted on a housing kinematically connected with the rotors and providing rotation of the rotors around their own axis, and the blades are mounted on a common shaft and are the drive of the shaft.

Thus, under the influence of the flow, the blades located on the same shaft with the rotors begin to rotate the shaft and rotate around the axis of the rotors common with the blades of the shaft.

The rotor rotation ring is kinematically connected with the rotors and at the moment of rotation of the rotors around a shaft common with the blades provides rotation of the rotors around their own axis by rolling the rotors along the edge of the ring.

The clutch of the rotor and the rotation ring of the rotors, ensuring the rotation of the rotors along the edge of the ring, can be gear, friction or other known method, depending on the design capacity of the device and its application environment.

The parameters and the shape of the elements of the device is also determined depending on the design capacity of the device and its application environment.

The materials from which the elements of the device are made are used the same as for similar devices.

Brief Description of the Drawings

In figure 1. Shown is the rotor-blade impeller of an electric generating unit based on the Magnus effect - front view.

Figure 2 is the same side view, rotors and blades on separate hubs.

Figure 3 is the same side view, rotors and blades on a common hub.

Figure 4 is the same located in the conduit.

Figure 5 is the same, the direction of motion of the rotor.

In Fig.6 - the same principle of operation.

Description of the invention

The rotor-blade impeller of an electric generating unit based on the Magnus effect of FIGS. 1, 2 and 3 has four main elements: rotors - 1, blades - 2, ring - 3 rotor rotations and a common shaft - 4.

The rotors - 1 and blades - 2 are fixed in the hubs - 5 and combined by a common shaft -4, which is mounted on the housing - 6 and kinematically connected with the electric generator (in Fig. The connection of the shaft with the electric generator is not shown).

The ring -3 of rotation of the rotors - 1 is installed symmetrically to the axis of the shaft - 4. It can be fixed by any of the known methods either on the casing - 6 or on the casing - 7.

In figure 2, the rotors - 1 and the blades - 2 are located on separate hubs - 5.

In figure 3, the rotors -1 and the blades - 2 are located on a common hub - 5.

Figure 4 shows the rotor-blade impeller; an electric generating unit based on the Magnus effect, additionally equipped with blades - 8 guide apparatus (not shown in Fig.) And installed in the water conduit - 7.

The blades - 8 are installed between the rotors - 1 and the blades - 2. Such a scheme for installing the blades - 8 can be demanded to adjust their flow direction to the blades - 2 in hydropower.

Principle of operation

The principle of operation of the rotor-blade wheel of an electric generating unit based on the Magnus effect is as follows.

Figure 5, B is the direction of rotation of the rotor - 1 around the shaft - 4.

In Fig.6, when the flow pressure is A on the blades - 2, they begin to rotate the common shaft - 4 and installed on the common with the blades - 2 shaft - 4 rotors - 1. Rotors - 1 and blades - 2 rotate in a plane perpendicular to the axis of the shaft - 4 and located frontally to the direction of flow - A.

When the rotors - 1 move around the axis of the shaft - 4, the ring -3 of rotation of the rotors - 1, kinematically connected with the rotors, causes the rotors - 1 to rotate around their own axis - B. By rolling the rotor - 1 along the edge of the ring - 3 rotations of the rotors. At the moment of rotation of the rotors around their own axis, when flowing around it, in that part of the rotor surface where the direction of rotation of the rotor around its own axis and the direction of flow coincide, a zone of reduced pressure is created, and where the direction of rotation of the rotor and the flow are opposite, this part of the surface of the rotor creates a zone of high pressure. In this case, a transverse force arises on the rotor, perpendicular to the direction of flow and directed towards the zone of reduced pressure - G, which is the Magnus effect. This force is transmitted through the shaft - 4 to the electric generator and, in combination with the power developed by the blades, significantly increases the overall power of the device.

Claims (1)

A rotor-blade impeller of a Magnus effect-based generating set containing a shaft, at least one rotor, blades and a rotor rotation ring, characterized in that the rotor rotation ring is mounted on the housing, kinematically connected to the rotor to provide rotor rotation around its own axis by rolling the rotor along the edge of the ring, and the blades are mounted on a common shaft with the rotor and are the drive of this shaft.

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