Double-airflow wind-power generator

Abstract

The invention discloses a double-airflow wind-power generator, which belongs to the field of wind-power generating equipment and comprises a hollow stator, wherein the hollow stator is roundly arranged, the outer circle of the hollow stator is provided with a hollow rotor, a gap exists between the hollow rotor and the hollow stator, the hollow rotor is fixedly arranged at the lower end of a twisting ball which can rotate around a mandrel and is fixedly arranged on the mandrel at the symmetry axis of the twisting ball through a ball support, and the hollow rotor and the mandrel are fixed through a bracket. The bottom of the double-airflow wind-power generator is provided with a reducing flange for guiding hot air to ascend, the composite force of an ascending floating force generated by the ascending waste-temperature air and the atmosphere is utilized, the extremely prominent effect is that the twisting ball consists of a plurality of arc-shaped pieces, a wind force can be accepted at an angle of 360 degrees, the utilization coefficient of wind energy is improved, automatic starting and direct electricity generation are realized, the structure is simple, the manufacturing cost is low, adaptive environments and application fields are widened, and the double-airflow wind-power generator is favorable to the realization of popularization and two major benefits.

Description

technical field [0001] The invention relates to wind power generating equipment, which belongs to the field of wind power generating equipment, in particular to a dual-flow wind power generator. Background technique [0002] The rapid development of wind power generation in the world. Air pollution, deterioration of the water environment, biological degradation, vegetation destruction, and the gradual depletion of mineral energy have raised new problems for the development of human society. How to develop new energy can solve the basic problems for the healthy development of human life and today's life and promote social progress. Elements have become a new topic, so research on the use of solar energy, wind energy, marsh energy, geothermal energy, tidal energy, and waste heat energy has sprung up. As far as wind power is concerned, since the 1970s, wind power has been supported by various countries due to the energy crisis. From hundreds of watts of stand-alone power to s...

AI Technical Summary

Problems solved by technology

From hundreds of watts of stand-alone power to several megawatts today, wind farms from millions of kilowatts to hundreds of megawatts, wind power has developed from inland to offshore, and people have taken a solid and gratifying step in the utilization of wind energy. my country's wind resources It can be divided into five districts. The first district is northern Xinjiang and Inner Mongolia, and the fifth district is Guangxi and Yunnan. However, due to the different functions of wind power generation in different regions, the utilization and development of wind power are limited. By 2010, the world's The overall situation of wind power development is: small wind power of several hundred watts to several kilowatts has a large market volume and a wide range, which solves some problems that cannot be covered by the power grid. Most of the parties are county finance or investors, and the largest ones are megawatt-scale wind farms, which are difficult and difficult to connect to the grid. Investors are government or state-owned units, but they are troubled by funds and materials. question

[0003] Looking at the cost of small wind power, a 200W small wind power generator is priced at 3,600 yuan (Qingdao Fengwang product) excluding lodging prevention, 3 traction wires and a cement base. In fact, a 200W small generator is only about 500 yuan. There are many complex traditional components such as blades, tail fins, and commutation rectifiers, which make the overall machine cost high. The rated speed of this product is 400 rpm, the starting wind speed is 3 m / s, and the rated generating wind speed is 8 m / s. It is not suitable for popularization in the fourth and fifth types of wind resource areas

Today, a batch of "permanent magnetic levitation wind power generation, full permanent magnetic levitation power generation, etc. have emerged, but none of them are separated from steering or reversing or complex magnetic mechanisms and transmission mechanisms, which increases costs and increases the difficulty of use and maintenance. The market is not optimistic.

[0004] From the perspective of megawatt-level wind power, the structure is the expansion and addition of small wind power structures, such as: wind blades, gearboxes, generators, yaw systems, lightning protection, control systems, etc., in terms of generator types, there are double Feed asynchronous, permanent magnet and electric excitation synchronous, low-speed multi-pole synchronous, variable-speed direct drive, with a total weight of about 200 tons for a mega-kilowatt class. The diameter is only 126 meters, and the swept area is 12,469 square meters. It is large and heavy, the structure is complex, the cost is too high, and the wind speed is required to be high. In recent years, due to frequent problems with the blades, there are many failures. In the industrialization project of 863-005 rare earth permanent magnet generator development, the gearbox and speed change device were canceled, but it still did not break away from other heavy mechanical power generation equipment such as direct shaft transmission.

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