Wind motor

FIELD: power industry.

SUBSTANCE: wind motor includes a horizontal shaft with a wheel with blades, which is installed on it. In addition, the wind wheel includes a conical air flow guide fixed on a wheel hub shell and an external shell. Blades of the second level are uniformly arranged on the external shell. Blades of the first level are attached to the wheel hub shell and to the conical guide. Generatrixes of blades of the first and the second levels are curved and have an ascending air flow attack angle.

EFFECT: improving efficiency.

5 dwg

 

The invention relates to wind energy, in particular wind turbine, and can be used for the construction of wind turbines with a horizontal axis of rotation of the wind turbine, located at the wind flow.

Known wind turbine with horizontal shaft mounted thereon wind wheel (Wind energy. M: Energoizdat, 1982, p.26, RIS, a-8). The disadvantage of this wheel is that it is almost never used the wind force Central area and insufficient size of the blades.

The closest in technical essence is a turbine with horizontal shaft, with a fixed working vanes is stationary and located in a plane between the working blade extra blades, rotating in a different plane, is set at a large angle to the plane of rotation than the working blade (application EN 2009111088, 10.10.2010).

The disadvantage of this technical solution is that not using the wind force Central area.

The technical essence of the present invention is a significant increase in the total area of the blades in order to reduce the diameter of the propeller, increasing the torque on the shaft of the turbine and the best use of wind power Central, middle and peripheral zones of the propeller.

The crust is Asa technical essence is achieved by the turbine with horizontal shaft mounted on a wheel with blades further comprises fixed on the ring wheel hub tapered leader of the air stream and the outer shell, which spread the blades of the second level, while the blades of the first level are attached to the sides of the wheel hub and cone to the sender, and forming the blades of the first and the second level is made curvilinear with increasing angle of attack to the air flow.

The design changes of the wind turbine, located at the wind flow is compared to existing, let ceteris paribus significantly reduce the diameter of wind wheel per installed capacity.

On 1 shows a view of a wind turbine in front.

Figure 2 shows a section along a-A.

Figure 3 gives the scan portion of the outer shell with the blades of the second level.

Figure 4 gives the reamer blades of the first level.

Figure 5 is given a top view of the blade of the first level.

The turbine consists of a six-bladed wheel 1 mounted on a horizontal shaft 2. On the ring 4 of the hub 3 a six-bladed wheel 1 is fixed tapered leader 6 air flow. The blades 5 a six-bladed wheel 1 is attached to the ring 4 and the cone sender 6, which provides them extra hard the th. Shell 7 in turn also provides additional rigidity when the blades 5 of the wind turbine and reduces vibration. The outer drum 7 uniformly placed additional blades 8 of the second level, forming 9 which, as form 10 blades 5 of the first level made curvilinear with increasing angle of attack to the air flow.

The device operates as follows. Air flow around the wind energy installation, goes to the turbine. It is known that the energy output of the wind turbines in the first place depends on the wind speed in cubic dependence, and in direct dependence on the diameter of the propeller and the area of the working surface of the blades. Therefore, increasing the working area of the blades twice, you can reduce the diameter of wind wheel twice on the principle of the lever of Archimedes. In the Central zone of the tapered leader 6 displaces the air flow to the middle zone, directly on the blades 5 of the first level of a six-bladed wheel 1, providing increased torque on the shaft 2 of a wind turbine by increasing air flow rate. The presence of shell 7 provides joint stiffness when the blades 5 and the shell 7 that allows you to secure it to the blade of the smaller size of the second level and is much more effective than IP is to alsowhat wind energy peripheral zone.

Wind turbine with horizontal shaft mounted on a wheel with blades, characterized in that it further comprises fixed on the ring wheel hub tapered leader of the air stream and the outer shell, which spread the blades of the second level, while the blades of the first level are attached to the sides of the wheel hub and cone to the sender, and the forming blades of the first and the second level is made curvilinear with increasing angle of attack the airflow.



 

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