CN2418268Y

CN2418268Y - Cyclone vertical-axle wind mill

Info

Publication number: CN2418268Y
Application number: CN00227910U
Authority: CN
Inventors: 赵继华; 赵继琢
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-19
Filing date: 2000-04-19
Publication date: 2001-02-07
Anticipated expiration: 2010-04-19

Abstract

The utility model discloses a swirl-type vertical-axis wind machine which is composed of a bracket, a shaft and a wind wheel. The wind wheel is composed of an upper support plate, a lower support plate and fan blades, and the fan blades are fixed between the upper and lower support plates. , there is a shaft in the middle of the upper and lower support plates, and the shaft is installed on the bracket. It is characterized in that the blades on the wind wheel are 6-12 pieces, and the radian of these blades is 15-80 degrees, which makes the wind receiving area of the machine Large, large conversion energy, high energy utilization rate.

Description

Swirl Vertical Axis Wind Turbine

本实用新型涉及一种旋流式立轴风力机。The utility model relates to a swirl type vertical shaft wind power machine.

目前，现有的立轴风力机是利用叶片处于轴座标两侧所产生的不同方向的力矩的差额推动风轮转动。由于它的叶片少，弧度小，两种力矩的差额小，所以推动风轮转动的力矩小，风能的利用率不高。At present, the existing vertical axis wind turbines use the difference between the moments of different directions generated by the blades on both sides of the axis coordinates to drive the wind rotor to rotate. Because it has few blades, small radian, and small difference between the two torques, the torque driving the wind wheel is small, and the utilization rate of wind energy is not high.

本实用新型的目的在于提供一种风能利用率高的旋流式立轴风力机。The purpose of the utility model is to provide a swirl type vertical axis wind turbine with high utilization rate of wind energy.

为实现上述目的，本实用新型的旋流式立轴风力机由支架、轴、风轮组成，风轮又由上支承板、下支承板、风叶组成，风叶固定在上、下支承板之间，上、下支承板中间设有轴，该轴装设在支架上，其特征是风轮的叶片为6-12片，叶片的弧度为15-80度。In order to achieve the above object, the swirl type vertical axis wind turbine of the present invention is composed of a bracket, a shaft, and a wind wheel, and the wind wheel is composed of an upper support plate, a lower support plate, and fan blades. Between the upper and lower supporting plates, a shaft is arranged in the middle, and the shaft is mounted on a support. It is characterized in that the blades of the wind wheel are 6-12 pieces, and the radian of the blades is 15-80 degrees.

采用这样的结构后，使向风面的叶片有一半具有导流作用，大部份风力集中到风轮的一边形成同值的合力，而产生的反值合力很小，而流动空气进入风轮先后两次产生同值合力，正负值的合力差值增大，提高启动时的合力矩，使风速在0．3米／秒时，就可以启动，其有效受风面积大，转化能量大，能量利用率高。After adopting such a structure, half of the blades on the windward side have a flow guiding effect, and most of the wind force is concentrated on one side of the wind wheel to form a resultant force of the same value, while the resultant force of the opposite value is very small, and the flowing air enters the wind wheel The resultant force of the same value is generated twice successively, the resultant force difference between positive and negative values increases, and the resultant torque at start-up is increased, so that the start-up can be started when the wind speed is 0.3 m/s. The effective wind-receiving area is large and the conversion energy is large. , high energy utilization.

图1为本实用新型具体的一种实施方案的结构示意图。Fig. 1 is a structural schematic diagram of a specific embodiment of the utility model.

图1所示的本实用新型的旋流式立轴风力机由支架1、轴2、风轮6组成，风轮6又由上、下支承板5、3，风叶4组成，风叶4固定在上、下支承板5、3之间，上、下支承板(5、3)中间设有轴2，该轴2设置在支架1上，特征是风轮6的叶片4为8片，其弧度为28度。工作时，由于向风面的叶片有一半具有导向作用，大部份风力集中到风轮的一边形成同值的合力，而产生的反值合力很小，而流动空气进入风轮先后两次产生同值的合力，正负值的合力差值增大，提高了启动时的力矩，因此启动性能好，根据纸质小模型试验，在风速在0．3米／秒时，就可以启动，同时其能量转化率也就增大，再者叶片与空气的磨擦力同样转化为风轮转动的能力，也减少了损失，增大了能量的利用率。本旋流式立轴风力机省去了转向系统，因此结构简化，对制造的材料要求不高，比较牢固，它的适用性也广，除了发电外，还可用作小型海上船舶的动力(代替目前的风帆)，因此其发展前景广宽。The swirl type vertical axis wind turbine of the present utility model shown in Fig. 1 is made up of support 1, shaft 2, wind wheel 6, and wind wheel 6 is made up of upper and lower support plate 5,3, wind blade 4 again, and wind blade 4 is fixed Between the upper and lower support plates 5,3, there is a shaft 2 in the middle of the upper and lower support plates (5,3). The arc is 28 degrees. When working, because half of the blades on the windward side have a guiding effect, most of the wind is concentrated on one side of the wind wheel to form a resultant force of the same value, while the resultant force of the opposite value is very small, and the flowing air enters the wind wheel twice successively to generate For the resultant force of the same value, the resultant force difference between positive and negative values increases, which increases the torque at start-up, so the start-up performance is good. According to the small paper model test, it can be started when the wind speed is 0.3 m/s, and at the same time The energy conversion rate is also increased, and the friction between the blade and the air is also converted into the ability of the wind wheel to rotate, which also reduces losses and increases the utilization rate of energy. The swirl type vertical axis wind turbine omits the steering system, so the structure is simplified, the material requirements for manufacturing are not high, and it is relatively strong. current sails), so its development prospects are broad.

Claims

1. A swirl type vertical shaft wind turbine is composed of a support (1), a shaft (2), and a wind wheel (6). The wind wheel (6) is composed of an upper support plate (5), a lower support plate (3), Wind blade (4) is formed, and wind blade (4) is fixed between upper and lower support plate (5,3), and upper and lower support plate (5,3) middle is provided with shaft (2), and this shaft (2) It is installed on the bracket (1), and is characterized in that the number of blades (4) on the wind wheel (6) is 6-12, and the radian of the blades (4) is 15-80 degrees.