SK572021A3 - Propeller wind V turbine - Google Patents

Abstract

The propeller wind V turbine converts the sliding movement of the air into the twisting movement of the generator (4). It is designed as a spatial wind turbine with vertically or horizontally located pairs of propellers (1) with a horizontal or vertical axis of rotation and curved vertical guide surfaces (2) directing the air flow to the propellers (1), while the vertical location of the propeller (1) is the location of the propeller ( 1) in a plane longitudinal to the direction of the wind. After the passage of the moving air through the propellers (1), the air escapes entrained by the external horizontal flow into the space. The propeller wind V turbine is suspended on ropes (8) or is rotatably attached to the mast (9). The basic use of the invention is in obtaining electrical energy from the kinetic energy of the wind.

Description

The field of technology

The present invention relates to a propeller-driven V wind turbine and its use is in the field of wind turbines using the power of the wind to produce electricity. The content of the invention belongs to the field of physics, part of mechanics.

Current state of the art

Up to now, almost 95% of the industry uses two or three-bladed propeller turbines with a horizontal axis of rotation, referred to as HAWT, to harness the power of the wind. The design limitation of these types of turbines is given by the speed of the free end of the turbine blade, because at high tip speed turbulent problems occur that adversely affect the energy yield of the device. In the past, wind multi-blade wheels, or wind turbines referred to as H-type VAWT - a rotor with vertical blades and a vertical axis of rotation, or Darrieus-type turbines were also used. The oldest types are carousel with different oscillating blades, effective in one half of the rotor rotation. There have also been many ideas of linear drive devices with surfaces or leaves fixed at two ends on two cables, chains or ropes arranged in a closed loop.

The essence of the invention

The essence of the invention of the V propeller wind turbine is the optimal arrangement of the arc guiding surfaces of the spatial support structure and the placement of several classic axial wind turbines in a plane longitudinal to the direction of the wind. The propeller wind V turbine consists of a supporting structure, curved guide surfaces and two or more classical axial wind turbines connected to a generator. In this description of the invention, two possibilities for the realization of air flow diversion will be explained. The first possibility of realization of the propeller wind V turbine is the deflection of the horizontal air flow in the transverse horizontal direction with respect to the wind, and the second possibility of the realization of the propeller wind V turbine is the deflection of the horizontal air flow first in the transverse horizontal direction and then in the vertical direction. The abbreviated name propeller wind V turbine can be more accurately described as a spatial wind turbine with vertically or horizontally located propellers with a horizontal or vertical axis of rotation and curved guide surfaces directing the air flow to the propellers, while the vertical location of the propeller is the location of the propeller in a longitudinal plane with the direction of the wind. The essence of the invention is that the horizontal flow of air is captured, divided and directed by means of arc guiding surfaces in a transverse horizontal direction with respect to the wind or a vertical direction. Propellers are fixed to the structure firmly in frames and can be placed either in a vertical plane longitudinally with the direction of the wind or in a horizontal plane longitudinally with the direction of the wind. The air behind the propellers in both cases of placement, which is slowed down by transferring its kinetic energy to the rotation of the propellers, is diverted and accelerated by the natural movement of the air away from the wind in a horizontal direction, which increases the turning power of the propeller. The rotation of the propellers is accelerated by the fact that the cross-section of the surface of the captured air narrows towards the propellers, which accelerates the air flow. The power of the generator is increased by using two counter-rotating propellers connected by a shaft into one machine. Basically, the stator also becomes a rotor and we can talk about a two-rotor generator. With such a design, the speed of the generator is doubled without using a gearbox, which increases its efficiency. The turbine is protected against strong winds by using propeller blades with an adjustable angle of rotation of the propeller blades. The second option to protect the turbine from strong winds is to build in safety flaps that will let air pass in a horizontal direction in dangerously strong winds. All rotating parts are located inside the structure. The turbine structure can be suspended on ropes or mounted on a fixed pole with the possibility of horizontal rotation on a bearing according to the direction of the wind. The rotation of the entire turbine while hanging on the ropes is made possible by attaching a weight on the front console, which balances the structure so that the axis of rotation of the entire turbine is shifted forward and the wind turns the turbine in the desired direction by leaning against the turbine guide surfaces. The rotation of the entire turbine when mounted on a fixed pole is made possible by fixing the axis of rotation of the entire turbine in the front part of the turbine structure, while the moment load from the weight of the rear part of the structure is compensated by fixing the turbine at two points above each other, and the wind turns the turbine in the desired direction by leaning against the guide surfaces turbines. The advantage is a large reduction in the diameter of the propeller at a comparable performance of the classically used HAWT turbine and an increase in the speed of the propeller. The advantage is the use of inexpensive and available materials for production and easy assembly from pre-prepared parts. An advantage

SK 57-2021 A3 is a construction that is friendly to the environment, and that does not burden the environment by killing living creatures, noise and vibrations from high-speed moving external parts of the equipment. The advantage is in the use of very strong wind and wind gusts as well as very weak air flow. The advantage is also easier maintenance compared to existing propeller turbines and the prevention of visual disturbances on the landscape caused by the moving blades of wind turbines when obtaining energy from the wind.

Overview of images on drawings

In fig. no. 1 is a schematic diagram of a propeller wind turbine V with propellers vertically located in a plane longitudinal to the direction of the wind. It is turned from the windward side and is suspended on a rope system.

In fig. no. 2 shows the individual parts of a turbine suspended on ropes with propellers vertically positioned in a plane longitudinal to the direction of the wind.

In fig. no. 3 shows a front view of the parts of a propeller-driven V wind turbine suspended on ropes with propellers vertically positioned in a plane longitudinal to the direction of the wind.

In fig. no. 4, the individual parts of the turbine suspended on ropes with horizontally placed propellers are shown in plan view.

In fig. no. 5 shows the front view of parts of a propeller-driven V wind turbine suspended on ropes with horizontally positioned propellers.

In fig. no. 6 shows a side view of parts of a propeller-driven V wind turbine suspended on ropes with propellers vertically positioned in a plane longitudinal to the direction of the wind.

In fig. no. 7 shows a side view of parts of a propeller-driven V wind turbine suspended on ropes with horizontally positioned propellers.

In fig. no. 8 is a schematic diagram of a propeller wind turbine V with propellers vertically located in a plane longitudinal to the direction of the wind. It is turned from the windward side and is attached to turn on a fixed mast.

In fig. no. 9 shows the air flow through a propeller-driven V wind turbine with closed flaps suspended on ropes with propellers vertically positioned in the longitudinal plane with the direction of the wind.

In fig. no. 10 shows the air flow through a propeller-driven wind turbine V with open flaps suspended on ropes with propellers vertically positioned in the longitudinal plane with the direction of the wind.

Examples of implementation of the invention

The principle of the invention makes it possible to build propeller wind V turbines of different sizes depending on the weight and strength of the materials used for construction, according to the method of fixing the turbine and according to the location of the propellers in a horizontal or vertical position.

Example no. 1: Description of the construction of a propeller-driven V wind turbine suspended on a supporting rope stretched between two fixed points with two propellers vertically positioned in the plane longitudinal to the direction of the wind.

There are three basic structural parts of the propeller wind turbine according to function, and they are divided into supporting parts of the structure that ensure shape and stability, further into arc guiding surfaces that direct the air flow and rotary parts that ensure the conversion of the force of moving air into electrical energy. Description of the appearance of the structure: The propeller wind V turbine is suspended on a rope 8 through a supporting structure 7 attached to two horizontal guide surfaces 3. The horizontal guide surfaces 3 with a slight arching at the tip of the propeller wind V turbine in an upward and downward direction from each other are connected by two relative to the central longitudinal of the vertical plane by symmetrically arranged arched vertical guiding surfaces 2 arranged in a fan-like manner with a tip in front. On both opposite ends of the horizontal guide surfaces 3, the propeller frames 13 are fixed vertically in the longitudinal plane with the direction of the wind, and in the propeller frames 13 they are mounted on the horizontal shaft of the generator 5 of the propeller 1 so that they rotate in the opposite direction. The generator shaft 5 connects the propeller 1 to the rotor of the generator 4, which is designed as a two-rotor generator, in which the stator part of the conventional generator also rotates in the opposite direction to the rotor, and the electric current discharge from the generator 4 to the structure is solved through the electrical contact between the fixed and the moving part using graphite-based composite materials. Folding flaps 6 are mounted on the curved vertical guide surfaces 2 on both sides of the propeller wind turbine V, which fold backwards in strong winds and serve as a safety device. In front, to the tip of the curved vertical guide surfaces 2

SK 57-2021 A3 is fitted with a support structure frame 7 with an attached weight 12, so that the center of gravity of the entire propeller wind turbine V with a vertical axis of rotation is moved forward and the entire structure of the propeller wind turbine V can be turned in the desired direction with the help of the wind by leaning the tip of the turbine against the wind is wound on the curved vertical guide surfaces 2.

Example no. 2: Description of the structure of a propeller-driven V wind turbine suspended on a supporting cable stretched between two fixed points with four propellers placed horizontally.

There are three basic structural parts of the propeller wind turbine according to function, and they are divided into supporting parts of the structure that ensure shape and stability, further into arc guiding surfaces that direct the air flow and rotary parts that ensure the conversion of the force of moving air into electrical energy. Description of the appearance of the structure: The propeller wind V turbine is suspended on a rope 8 through a supporting structure 7 attached to two horizontal guide surfaces 3. The horizontal guide surfaces 3 with a slight arching at the tip of the propeller wind V turbine in an upward and downward direction from each other are connected by two relative to the central longitudinal of the vertical plane by symmetrically arranged arched vertical guiding surfaces 2 arranged in a fan-like manner with a tip in front. On both opposite ends of the horizontal guide surfaces 3, the propeller frames 13 are inserted in their end part in a horizontal position in the plane longitudinal to the direction of the wind, and in the propeller frames 13 they are mounted on the vertical shaft of the generator 5 of the propeller 1 so that they rotate in the opposite direction to each other. A pair of propeller frames 13 is therefore mounted on each side of the horizontal guide surfaces 3. In this type of propeller V wind turbine, the horizontal air flow is captured, divided and directed by means of curved guide surfaces 2 in a transverse horizontal direction with respect to the wind and then in a vertical direction by means of curved inclined guide surfaces 14, which are attached to the horizontal guide surfaces 3 and the rear part to the arcuate vertical guide surfaces 2. The generator shaft 5 connects the propeller 1 to the rotor of the generator 4, which is constructed as a two-rotor generator, in which the stator part of the conventional generator also rotates in the opposite direction to the rotor and the removal of the electric current from the generator 4 to the structure is solved through the electrical contact between the fixed and the moving part using graphite-based composite materials. Folding flaps 6 are mounted on the curved vertical guide surfaces 2 on both sides of the propeller wind turbine V, which fold backwards in strong winds and serve as a safety device. At the front, a support structure frame 7 with an attached weight 12 is mounted in the tip of the arc vertical guide surfaces 2, so that the center of gravity of the entire propeller wind turbine V with a vertical axis of rotation is moved forward and the entire structure of the propeller wind turbine V can be turned in the desired direction by the tip of the turbine with the help of the wind against the wind, I lean against the wind against the arched vertical guide surfaces 2.

Example no. 3: Description of the construction of a propeller-driven V wind turbine mounted for rotation on a support mast with two propellers vertically positioned in the longitudinal plane with the direction of the wind.

The description of the structure of the propeller wind V turbine is the same as that given in example no. 1 with the difference that the propeller wind turbine V is not suspended on ropes 8 through the supporting structure 7, but is rotatably attached to the mast 9 using a bearing 11 and the frame part with the weight is not realized, because the moment load from the weight of the rear part of the structure is compensated by attaching the turbine at two points above each other.

Example no. 4: Description of the construction of a propeller-driven V wind turbine mounted for rotation on a supporting mast with four horizontally placed propellers.

The description of the structure of the propeller wind V turbine is the same as that given in example no. 2 with the difference that the propeller wind turbine V is not suspended on ropes 8 through the supporting structure 7, but is rotatably attached to the mast 9 using a bearing 11 and the frame part with the weight is not realized, because the moment load from the weight of the rear part of the structure is compensated by attaching the turbine at two points above each other.

Industrial applicability

The invention of the propeller wind V turbine can be used to convert the kinetic energy of the wind into mechanical energy as a driving force for generators. Industrial applicability consists mainly in supplying the energy industry with energy from renewable sources primarily for the production of electricity by small consumers. One example is the design of the wind power plant in fig. no. 1. This invention is also of great use in the supply of cheap electricity for the growing number of electric charging stations for electromobility. It is also suitable for urban areas, because the rotating parts are much smaller than with classic propellers, they are not so visible and they do not disturb or threaten the surroundings when they are put into operation.

SK 57-2021 A3

List of relationship tags

- propeller

- curved vertical guide surface

- horizontal guidance surface

- generator

- generator shaft

- folding flap

- skeleton

- rope

- mast

- mast base

- bearing

- weight

- propeller frame

- curved, inclined guide surface

- side wall

Claims (2)

PATENT CLAIMS 1. The propeller wind V turbine is made from a supporting structure (7), from curved vertical guiding surfaces (2), from horizontal guiding surfaces (3), from propeller frames (13) from propellers (1) from generator shafts (5) and generator (4), while the propeller wind V turbine is suspended on ropes (8) or is rotatably attached to a mast (9), characterized in that the support structure (7), consisting of rod elements, is attached to two horizontal guide surfaces (3), which are placed above each other and their shape copies the shape of two arc vertical guide surfaces (2), while the horizontal guide surfaces (3) are connected by these two symmetrically arranged arc vertical guide surfaces (2) with respect to the central longitudinal vertical plane, which are arranged in a fan-like manner with the tip in front in the shape of the letter V and on both opposite ends of the horizontal guide surfaces (3) the propeller frames (13) are attached vertically in the longitudinal plane with the direction of the wind and in the propeller frames (13) they are mounted on the horizontal shaft of the generator (5 ) propellers (1) so that they rotate in the opposite direction to each other and each generator shaft (5) connects the propeller (1) to the generator rotor (4) and on the arc vertical guide surfaces (2) on both sides of the propeller wind V turbine are mounted tilting flaps (6), tilting backwards and forwards, in the tip of the arched vertical guide surfaces (2), a supporting structure frame (7) with a weight (12) is mounted in the case that the propeller wind turbine V is suspended on ropes. 2. Propeller wind turbine according to claim 1, characterized in that the supporting structure (7), which consists of rod elements, is attached to two horizontal guiding surfaces (3) that are placed above each other and their shape they copy the shape of two arched vertical guide surfaces (2), while the horizontal guide surfaces (3) are connected by these two symmetrically arranged arched vertical guide surfaces (2) with respect to the central longitudinal vertical plane, which are fan-shaped with the tip in front in the shape of the letter V and on at both opposite ends of the horizontal guide surfaces (3), the propeller frames (13) are inserted in their end part in a horizontal position in the plane longitudinal to the direction of the wind, and in the propeller frames (13) they are mounted on the vertical shaft of the generator (5) of the propeller (1) so that so that they rotate in the opposite direction to each other and each generator shaft (5) connects the propeller (1) to the generator rotor (4) and on the arched vertical guide surfaces (2) on both sides of the propeller wind V turbine, flaps (6) are mounted, which they tilt backwards and in the front, in the tip of the arched vertical guide surfaces (2), a support structure frame (7) with a weight (12) is mounted in the case that the V wind turbine propeller is suspended on ropes.