CN112112755A - Wind power generation wind collecting device based on venturi tube - Google Patents

Abstract

The invention discloses a wind power generation wind collecting device based on a venturi tube. The air inlet of the venturi tube is provided with an air collecting port, the venturi tube and the air collecting port are fixed on a fixed bracket; Turbine; a deflector is arranged around the air collecting port, and the deflecting plate is inclined toward the air outlet; a pressure relief port is opened on the air collecting port, and a pressure relief valve is installed on the pressure relief port; the device needs to use the air collecting port according to the wind direction. The air inlet of the venturi tube adds an air collection port, which can collect the natural wind and increase the wind speed. The negative pressure area behind the air collecting port is also provided with a pressure relief port and a pressure relief valve. When the natural wind is too large, the pressure relief valve is opened, and the excess air volume collected in the air collecting port can be discharged from the pressure relief port.

Description

A wind power generation wind collecting device based on venturi tube

technical field

The invention relates to a wind power generation wind collecting device based on a venturi tube, and belongs to the technical field of wind collecting power generation equipment.

Background technique

Wind power generation converts the kinetic energy of wind into electrical energy. As a clean and renewable energy, wind energy has been paid more and more attention by countries all over the world. Its reserves are huge. The global wind energy is about 2.74×10^9MW, of which the available wind energy is 2×10^7MW, which is 10 times larger than the total amount of water energy that can be developed and utilized on the earth. my country is rich in wind energy resources, and the wind energy reserves that can be developed and utilized are about 1 billion kW, of which, the wind energy reserves on land are about 253 million kW (calculated from the data at a height of 10m above the ground), and the wind energy reserves that can be developed and utilized offshore are about 750 million kW. A total of 1 billion kW. Wind is one of the energy sources without pollution. And it is inexhaustible and inexhaustible. For coastal islands, grassland and pastoral areas, mountainous areas and plateau areas that lack water, fuel and transportation, it is very suitable and promising to use wind power according to local conditions. Existing wind power equipment can generate electricity with normal efficiency when the wind is strong, but most windy areas are not always windy, and in some light wind conditions, wind power equipment cannot generate electricity with normal efficiency. The wind power generation equipment is directly in a stagnant state. Therefore, the present invention studies a wind power generation wind collecting device based on a venturi tube to solve the above problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a wind power generation and wind collecting device based on a venturi tube. The device needs to use the air collecting port against the wind direction, and adding an air collecting port at the air inlet of the venturi tube can collect the natural wind and increase the wind power. Speed, even if the wind speed of the natural wind is low, the wind speed at the position of the blade turbine will be higher than the wind speed of the natural wind (the higher the wind speed, the higher the power generation efficiency of the blade turbine), increase the diversion around the air collecting port The plate will divert the natural wind direction that does not enter the air collecting port around, avoid the natural wind affecting the negative pressure area behind the air collecting port, reduce the flow velocity of the air outlet, and then reduce the wind speed flowing through the blade turbine in the Venturi tube, and reduce the speed of the blade turbine. Power generation efficiency, at the same time, there is a pressure relief port and a pressure relief valve at the air collection port. When the natural wind is too large, the pressure relief valve is opened, which can discharge the excess air volume collected in the air collection port from the pressure relief port, so as to prevent the excess air volume from continuously affecting the collection port. Pressure from the tuyere causes damage.

A wind power generation wind collecting device based on a venturi tube, comprising a venturi tube, an air inlet, an air outlet, an air collecting port, a pressure relief port, a pressure relief valve, a rotating shaft, a counterweight, a fixed bracket, an outrigger, an upper extension frame, A deflector, a solar panel, and a rear bracket; the air inlet of the venturi tube is provided with an air collecting port, and the venturi tube and the air collecting port are fixed on a fixed bracket; a blade turbine is installed at the position with the smallest diameter in the middle of the venturi tube; A guide plate is arranged around the air collecting port, and the guide plate is inclined in the direction of the air outlet; the air collecting port is provided with a pressure relief port, and a pressure relief valve is installed on the pressure relief port.

Preferably, the air collecting port is any type of constricted pipe with a front size and a rear size.

Preferably, the air collecting port adopts a square necked tube.

Preferably, the shape of the fixing bracket is approximately an isosceles triangle, and the bottom edge of the fixing bracket is in contrast with the edge of the air collecting port.

Preferably, the left, right and upper edges of the air collecting port are provided with air guide plates, and the bottoms of the two waists of the fixing bracket are respectively installed with air guide plates.

Preferably, the upper surface of the deflector is in a concave arc shape.

Preferably, the top left and right ends of the pressure relief valve are provided with rotating shafts, the top left and right ends of the pressure relief port are provided with bearings, and the pressure relief valve shafts are installed in the bearings of the pressure relief port.

Preferably, a counterweight is provided at the bottom of the pressure relief valve.

Preferably, the pressure relief valve is opened and closed by electric control.

Preferably, the rear end of the fixing bracket is provided with a rear bracket, the front end of the solar panel is fixed on the upper extension frame, and the rear end of the solar panel is fixed on the rear bracket.

The beneficial effect of the present invention is to provide a wind power generation and wind collecting device based on a venturi tube. The device needs to use the air collecting port against the wind direction, and adding an air collecting port at the air inlet of the venturi tube can collect the natural wind and increase the wind speed. Even if the wind speed of the natural wind is low, the wind speed at the position of the blade turbine will be higher than that of the natural wind. Adding a deflector around the air collecting port will guide the natural wind direction that does not enter the air collecting port. It can prevent the natural wind from affecting the negative pressure area behind the air collecting port, reduce the flow velocity of the air outlet, and then reduce the wind speed flowing through the blade turbine in the venturi tube and reduce the power generation efficiency of the blade turbine. The pressure relief valve is opened when the natural wind is too large, which can discharge the excess air volume collected in the air collection port from the pressure relief port, so as to prevent the excess air volume from continuously exerting pressure on the air collection port and causing damage.

Description of drawings

FIG. 1 is a schematic diagram of the overall rear structure of the present invention.

FIG. 2 is a schematic diagram of the overall front side structure of the present invention.

FIG. 3 is a schematic diagram of a part of the structure of the present invention.

FIG. 4 is a schematic diagram of the structure of the fixing bracket of the present invention.

FIG. 5 is a schematic view of the structure of the deflector of the present invention.

FIG. 6 is a schematic structural diagram of the pressure relief valve of the present invention.

Figure 7 is a side view aerodynamic schematic diagram of the present invention.

FIG. 8 is a top-view aerodynamic schematic diagram of the present invention.

In the figure, the venturi 1, the air inlet 101, the air outlet 102, the air collecting port 2, the pressure relief port 3, the pressure relief valve 4, the rotating shaft 401, the counterweight 402, the fixed bracket 5, the outrigger 6, the upper extension frame 7, Air deflector 8 , solar panel 9 , rear bracket 10 .

Detailed ways

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings, the following description is only used to illustrate the technical solution of the present invention and not limit it.

In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", "vertical" The orientation or positional relationship indicated by "straight", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplification describe, rather than indicate or imply that the referred device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention; in addition, the terms "first", "second", etc. only For descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; thus, features delimited with "first", "second", etc. may expressly or implicitly Including one or more of the features; in the description of the present invention, unless otherwise stated, "plurality" means two or more.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal connection of two components; for those of ordinary skill in the art, it can be The specific meanings of the above-mentioned terms in the present invention are understood through specific situations.

As shown in the figure, a wind power generation wind collecting device based on a venturi tube includes a venturi tube 1, an air inlet 1012, an air outlet 102, an air collecting port 2, a pressure relief port 3, a pressure relief valve 4, a rotating shaft 401, a Weight 402, fixed bracket 5, outrigger 6, upper extension frame 7, deflector 8, solar panel 9, rear bracket 10; the air inlet 1012 of the venturi 1 is provided with an air collecting port 2, and the venturi 1 and the air collecting port 2 are fixed on a fixed bracket; the front end of the fixed bracket 5 is provided with an upper extension frame 7 for reinforcing the air collecting port 2; the position with the smallest diameter in the middle of the venturi tube 1 is installed with a blade turbine, and the shadow is a negative pressure area, The position where the blade turbine is installed is the position with the largest negative pressure value in the negative pressure area, so the wind speed is also the fastest. The faster the wind passes through the blade turbine, the higher the power generation efficiency of the blade turbine; There is a deflector 8, and the deflector 8 is inclined in the direction of the air outlet; the air collecting port 2 is provided with a pressure relief port 3. When the wind speed is large, the air volume collected in the air collecting port 2 cannot pass through the venturi pipe, and the excess If the air volume is too high, the pressure will always be applied to the air collecting port 2, which will cause damage. The air collecting port 2 is provided with a pressure relief port 3 to discharge the excess air volume to avoid damage to the air collecting port 2. A pressure relief valve is installed on the pressure relief port 3. 4. The pressure relief valve 4 is to control the opening and closing of the pressure relief port 3.

In the present invention, the air collecting port 2 is any type of shrinking tube with a large front and a small rear, and can be applied to a square necked tube, a circular necked tube, or the like.

In the present invention, the air collecting port 2 adopts a square necked tube, and in this invention, it is more suitable to use a square necked tube for the air collecting port 2 .

In the present invention, considering the high structural strength of the triangular fixing bracket, the shape of the fixing bracket is approximately an isosceles triangle, and the bottom edge of the fixing bracket is in contrast with the edge of the air collecting port 2 .

In the present invention, the left, right and upper edges of the air collecting port 2 are provided with deflectors 8 , and the bottoms of the two waists of the fixing bracket are respectively installed with deflecting plates 8 , and the deflecting plates 8 are installed on the upper and lower parts of the air collecting port 2 . The four directions of down, left and right can be set to divert the natural wind direction that does not enter the air collecting port 2 around, so as to prevent the natural wind from affecting the negative pressure area behind the air collecting port 2.

In the present invention, the upper surface of the deflector 8 is in a concave arc shape, and the concave deflector 8 can allow the natural wind that has not entered the air collecting port 2 to flow back farther.

In the present invention, the top left and right ends of the pressure relief valve 4 are provided with rotating shafts 401 , and the top left and right ends of the pressure relief port 3 are provided with bearings.

In the present invention, the bottom of the pressure relief valve 4 is provided with a counterweight 402. When the wind speed reaches a preset value X (the preset value X varies in size according to the present invention, and the value of X is not necessarily), it enters the air collecting port 2 The natural wind cannot pass through the venturi tube 1. At this time, the wind will blow the pressure relief valve 4 with the counterweight 402 open, and the excess air volume will flow out from the pressure relief port 3 to avoid damage to the air collecting port 2. When the wind speed drops below the preset value X or there is no wind, the pressure relief valve 4 is rotated and closed under the action of the counterweight 402 .

In the present invention, the pressure relief valve 4 is opened and closed electrically, such as an electric telescopic rod. When the wind speed reaches the preset value X, the electric telescopic rod opens the pressure relief valve 4.

In the present invention, the rear end of the fixing bracket 5 is provided with a rear bracket 10, the front end of the solar panel is fixed on the upper extension frame 7, and the rear end of the solar panel is fixed on the rear bracket 10. The solar panel can not only generate electricity but also play a role in conducting electricity. The electric telescopic rod is used when fixing the solar panel, and the inclination angle of the solar panel can also be adjusted, so that the power generation efficiency of the solar panel can be maximized.

Use the air collecting port of the device to control the wind direction (considering whether the wind direction is exactly the same every time the wind blows, the present invention is installed on the steering mechanism; such as the slewing drive of the excavator, etc., it can realize 360-degree adjustment and control the wind direction) , the natural wind enters the air collecting port and passes through the action of the Venturi tube. The negative pressure area is formed at the air outlet of the Venturi tube and the rear of the air collecting port. The blade turbine is at the position where the diameter of the Venturi tube is the smallest, and the negative pressure value here is the largest. , so the wind speed is the fastest. Since the venturi outlet and the surrounding area are all negative pressure areas, the speed of the air flowing through the outlet is accelerated, thereby increasing the flow velocity in the venturi again, and the diversion around the air collecting outlet. The plate will divert the natural wind direction that does not enter the air collecting port around, so as to prevent the natural wind from affecting the flow velocity of the negative pressure area and the air outlet, thereby reducing the power generation efficiency of the blade turbine (the lower the wind speed, the lower the power generation efficiency of the blade turbine). The pressure relief valve opened on the air outlet, when the wind speed is high, the air volume collected in the air collection outlet cannot pass through the venturi pipe, and the excess air volume will always exert pressure on the air collection outlet and cause damage. It can exhaust the excess air volume.

Although the present invention has been described in detail with reference to the foregoing examples, for those skilled in the art, it is still possible to carry out and modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principle of the invention, any modification, equivalent replacement, improvement, etc. made shall be included within the protection scope of the present invention.

Claims (10)

1. A wind power generation wind collecting device based on a Venturi tube comprises the Venturi tube, a wind inlet, a wind outlet, a wind collecting opening, a pressure relief valve, a rotating shaft, a balance weight, a fixed support, supporting legs, an upper extending support, a guide plate, a solar cell panel and a rear support; the method is characterized in that: the air inlet of the Venturi tube is provided with an air collecting opening, and the Venturi tube and the air collecting opening are fixed on the fixed support; the blade turbine is arranged at the position with the smallest diameter in the middle of the Venturi tube; the periphery of the air collecting opening is provided with a guide plate which inclines towards the air outlet direction; a pressure relief opening is formed in the air collecting opening, and a pressure relief valve is installed on the pressure relief opening.

2. The wind power generation and collection device based on venturi tube of claim 1, wherein: the air collecting opening is any one of necking pipes with a large front part and a small back part.

3. The wind power generation and collection device based on the venturi tube of claim 2, wherein: the air collecting opening is a square necking pipe.

4. The wind power generation and collection device based on venturi tube of claim 1, wherein: the shape of the fixed support is similar to an isosceles triangle, and the bottom edge of the fixed support is compared with the edge of the air collecting opening.

5. A wind power generation and collection device based on Venturi tube according to claim 4, characterized in that: the left edge, the right edge and the upper edge of the air collecting opening are provided with guide plates, and the guide plates are respectively arranged at the bottoms of the two waists of the fixed support.

6. A venturi-based wind power generation and collection apparatus as claimed in claim 1 or 5, wherein: the upper surface of the guide plate is in a concave arc shape.

7. The wind power generation and collection device based on venturi tube of claim 1, wherein: both ends are equipped with the pivot about the top of pressure release valve, and both ends are equipped with the bearing about the top of pressure release mouth, and the pivot of pressure release valve is installed in the bearing of pressure release mouth.

8. A wind-powered electricity-generating wind-collecting device based on venturi tube according to claim 7, characterized in that: and a balance weight is arranged at the bottom of the pressure relief valve.

9. A wind-powered electricity-generating wind-collecting device based on venturi tube according to claim 7, characterized in that: the pressure release valve is opened and closed by electric control.

10. The wind power generation and collection device based on venturi tube of claim 1, wherein: the rear end of the fixed support is provided with a rear support, the front end of the solar panel is fixed on the upper extending frame, and the rear end of the solar panel is fixed on the rear support.

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