Method to convert wind energy into mechanical one

FIELD: power engineering.

SUBSTANCE: rotary wing is placed with a structure that retains it into a wind flow, a force rotary torque is generated, which impacts the structure with the rotary wing, under action of the aerodynamic force of the rotary wing of one direction, the wing attack angle is reduced to zero value as the structure with the rotary wing rotates, the wing attack angle changes to the opposite one, and rotary torques of forces of both directions are sent to a load. At the same time at first the longitudinal axis of wing rotation is diverted from the vertical position by the angle φ in direction of the minimum value of the wind rose directivity pattern, by means of diversion of the structure rotation axis by the angle φ, the wing with the structure that retains it is placed along the wind flow, and angles of wing rotation are limited and fixed with the help of limiting stops.

EFFECT: higher efficiency and durability of wind power plants and automation of the process by generation of an astable motion of a structure that retains a wing, in flows of different intensity and direction with application of the gravity force.

1 dwg

 

The invention relates to the field of wind power technology and can be used in wind power plants, working bodies which undergo vibrational motion and do not rotate.

There is a method of converting wind energy into mechanical energy, the technical implementation of which is oscillating wind drive [1], in which the working bodies in the form of mutually perpendicular blade is placed against the wind flow at the end of the rocker lever, form the lobes of the center of pressure behind the center of gravity along the longitudinal axis of the lever arm, studying the directional function of the vertical blades form a lifting force horizontal blades, changing their angle of attack to the critical value, transmit the generated horizontal blades lifting force through the lever arm load (pump)while moving the center of pressure towards the axis of the lever will return to its original position rocker lever under the action of gravity when the critical value of the angle of attack of the horizontal blades. Due to the lack of rotating the working bodies of the wind energy is the most complete way is passed through the swinging lever arm load. Rotating under the action of the wind working bodies create large gyroscopic moment which is extremely regulatorsappetite the technical implementation of the directional function of wind installation.

The disadvantage of this method of converting wind energy into mechanical energy is that for technical realization requires the exclusion of a large working space defined by the length of the beam, and expensive cleaning of the horizontal blades of the snow.

The closest known technical solution to the present invention is a method of converting kinetic energy of a fluid medium in a reciprocating movement of the wings, which is characterized by the fact that put rotary wing holding his design in the wind flow, form the torque forces acting on the structure with rotary wing, under the action of aerodynamic forces rotary wing one direction, overcoming the moment of inertia reduces the angle of attack to zero when turning design with rotary wing, change the angle of attack of the wing on the opposite for forming torque of the forces acting on the design of the other direction, and transmit the generated torque the moments of the forces acting on the structure with rotary wing, one and the other directions on the load and on the opposed drive mechanical energy (in the spring) is in direct contact with him at the edges of a predetermined sector of rotation in arivudai rotary wing structure relative to the fixed bearing [2]. Through the use of the entire surface of the working body - wing - from the point of view of the formation of the greatest lifting force of the wing is provided by the high utilization rate of energy flow environment in a given cross-sectional profile of channel to convert it into mechanical energy without rotation of the working body.

The disadvantage of the prototype is that the periodic accumulation of opposing mechanical energy during each cyclic movement of the holding rotary wing structures in the vicinity of the edge zones of the limitations of the specified sector move it reduces the performance of the power plant due to not quite rational consumption of stored mechanical energy to maintain self-oscillating mode, in addition, the use of mechanical energy to maintain the oscillatory movements of the element holding the rotary wing, does not fully meet the requirements of high durability power plant. In addition, the excitation of the oscillatory mode of motion design, retaining the rotary wing in the air, you must manually install the wing angle of attack to the wind flow, in the case when there is wind, and manually rotate the working sector of the fixed bearing in the direction against the wind in the case, to the Yes the wind changes direction.

The aim of the invention is to improve the performance and durability of wind turbines and automate the process of converting wind energy into mechanical energy due to the formation of the oscillatory movement of the element holding the rotary wing, the air currents of different intensity and wind direction using the force of earth's gravity.

This goal is achieved by the fact that, in addition to the known and common operations of the working body - wing, which are characterized by the fact that put rotary wing holding his design in the wind flow, form the torque forces acting on the structure with rotary wing, under the action of aerodynamic forces rotary wing one direction, overcoming the moment of inertia reduces the angle of attack to zero when turning design with rotary wing, change the angle of attack of the wing on the opposite for forming torque of the forces acting on the design of the other direction, and transmit the generated torques, forces, affecting design with rotary wing, one and the other directions on the load, the proposed method of converting wind energy into mechanical energy is that initially deviate from the vertical position h is the angle φ longitudinal axis of rotation of the wing in the direction of the minimum value of the directivity diagram of the wind rose by deviation of the angle φ to the axis of rotation design with rotary wing, put the rotary wing-retaining structure along the wind flow, restrict and record the angles of rotation of the wing with the limit stops.

The novelty of the proposed method of converting wind energy into mechanical energy is that initially deviate from the vertical position at an angle φ to the longitudinal axis of rotation of the wing in the direction of the minimum value of the directivity diagram of the wind rose by deviation of the angle φ to the axis of rotation design with rotary wing, put the rotary wing-retaining structure along the wind flow, restrict and record the angles of rotation of the wing with the limit stops that provide improved performance, durability of wind turbines and automate the process of converting wind energy into mechanical energy due to the formation of the oscillatory movement of the element holding the rotary wing, the flow variable wind using gravity of the earth.

Kinematic scheme of a wind energy installation, as an example, the technical realization of the proposed method of converting wind energy into mechanical energy, shown in the drawing, where indicated:

1 - design, holding rotary wing;

2 - restrictive stops;

3 - Wops the company's wing.

The device, showing the proposed method of converting wind energy into mechanical energy, works as follows.

Due to the implementation of the operation in advance of deviation from the vertical position at an angle φ to the longitudinal axis of rotation of the wing 3 in the direction of the minimum value of the directivity diagram of the wind rose generated (formed) torque design 1 that secure the rotary wing 2, under the force of its gravity relative to the axis of rotation design with rotary wing automatically (without human intervention), and, in addition, the rotary wing 3 takes one of the values in the setting angle, substituting always one of its sides to the wind flow, forming aerodynamic (lift) force. Under the action generated by the wing 3 aerodynamic forces design 1 that secure the rotary wing 3, starts automatically, without human intervention, to move. Formed when this torque design 1 is transmitted to the mechanical load, which is not shown.

The rotation of the wing 3, and hence the angle of attack is limited to the bounding 2 stops. Therefore, under the action of the previously formed the moment of inertia design 1 will move the rotary wing 3 in such extreme position in which the flow of air will start to blow in the other sides of the wing 3, forming a known change operation on the opposite angle of attack of the wing 3. Under the action of aerodynamic forces wing 3 design 1 that secure the rotary wing 3, makes the oscillatory movement, the direction of which is perpendicular to the wind flow, and the period of time forward and backward movement of the structure 1. In order to maintain the oscillatory motion design 1 does not require the consumption of additional opposing mechanical energy of the springs used in the prototype that improves the performance and durability of the wind power installation.

The industrial feasibility of the proposed method is proved by the fact that in the example of its implementation are well known in the analog and prototype operations and techniques for its intended functional purpose. In the applicant organization made in 2011, the working model of the device that implements the proposed method of converting wind energy into mechanical energy.

The positive effect from the use of the invention is that increased by at least 15...20% performance and durability of wind turbines, as well as the conditions for automation of the process of converting wind energy into mechanical energy due to the formation of the oscillatory movement is of design, holding the rotary wing, the air currents of different intensity and wind direction using the force of earth's gravity.

Sources of information

1. Patent RU 2059108, Swinging petroprod, IPC F03D 5/06, priority: 30.10.1991, the applicant, the author and patentee: Ancelovici L.L., (similar).

2. Patent RU 2141058, a Way of transforming the kinetic energy of the fluid in the reciprocating movement of the wing and installation for its implementation, the IPC F03D 5/06, priority: 01.11.1995, the applicant, the author and patentee: Buckeye V.I., (prototype).

The method of converting wind energy into mechanical energy, which consists in the fact that put rotary wing holding his design in the wind flow, form the torque forces acting on the structure with rotary wing, under the action of aerodynamic forces rotary wing one direction, overcoming the moment of inertia reduces the angle of attack to zero when turning design with rotary wing, change the angle of attack of the wing on the opposite for forming torque of the forces acting on the design of the other direction, and transmit the generated torque of the forces acting on the design of the rotary wing, the one and another directions to the load, characterized in that the first is donaut from the vertical position at an angle φ to the longitudinal axis of rotation of the wing in the direction of the minimum value of the directivity diagram of the wind rose by deviation of the angle φ to the axis of rotation design with rotary wing, put the rotary wing-retaining structure along the wind flow, restrict and record the angles of rotation of the wing with the limit stops.



 

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