CN201221447Y - Wind collecting barrel type horizontal axis power generation system - Google Patents

Abstract

A wind-collecting cylinder-type horizontal axis power generation system, comprising a high tower, a revolving body (2) is arranged on the top of the high tower, a hollow casing (11) fixed on the revolving body (2), an air collecting hood (12 ), the empennage (13) located at the rear end of the casing (11) and the wind-driven generator (14) with the wind wheel (141) installed in the casing (11), the high tower is a hollow air duct (3 ), the bottom side wall of the air guide pipe (3) has several air intake holes (31), the rotating body (2) is hollow inside, and the rotating body (2) is provided with the air guiding pipe (3 ) of the air guide cover (4), the air outlet end of the air guide cover (4) guides the air flow in the air guide pipe (3) to the adjacent wind wheel (141). While using the external wind energy, the power generation system also cleverly guides the upward airflow generated by the air convection caused by geothermal energy to the wind wheel of the wind turbine through the air duct to blow the rotation of the wind wheel, so the power generation equipment can At the same time, geothermal energy and wind energy are effectively used to generate electricity.

Description

Wind-collecting cylindrical horizontal axis power generation system

technical field

The utility model relates to a wind power generation system, in particular to a wind collecting type cylindrical horizontal axis power generation system.

Background technique

With the increasing tension of global energy sources, the use of renewable energy sources such as wind energy has become more and more popular all over the world. Regarding wind power generation equipment, the traditional equipment is a horizontal device, in which the wind generator is fixed on a rotating body, and the rotating body is set on a high tower, and can deflect relative to the high tower. The wheel shaft on the wind generator is approximately Horizontal, the wind wheel on the wheel shaft faces the airflow, the wind blows the wind wheel to rotate, and the wheel shaft also rotates accordingly, and then drives the power generation unit of the wind turbine to generate current. This kind of power generation equipment has a good wind power collection effect when the wind force is suitable. The advantages.

Because the airflow in the atmosphere is strong and sometimes weak, or even stops, the traditional horizontal wind power generation equipment cannot generate current in a stable and uninterrupted operation, and the efficiency is low; damaged, it is not suitable for use in areas subject to hurricanes.

In view of the above-mentioned present situation, someone has invented a kind of power generation equipment which utilizes heat convection generated by geothermal energy to generate power. Such a kind of power generation equipment is disclosed in the Chinese utility model patent "Chimney Wind Power Generation Equipment" whose application number is CN01123631.0 (publication number is CN1405448A). It includes: a vertical chimney-shaped hollow air duct, a supporting device , at least one wind impeller is pivotally arranged inside the above-mentioned air duct, and a power generating device. A heating device is located underneath the inside of the air duct. The heating equipment can use geothermal energy, or use the electric energy stored in the off-peak time of the power generation equipment of the aforementioned invention to generate heat. The armature unit and the magnetic pole unit of the power generating device can be respectively installed on the outer edge of the wind impeller and inside the air duct, or installed on the axle of the wind impeller. There is a shielding auxiliary device at the upper end of the air duct, and a plurality of horizontal wind power generating devices whose wind impeller shafts are roughly horizontal can be arranged on the outside to help improve power generation efficiency.

Although the technical solution involved in this patent application can avoid the defect that the traditional horizontal wind power generation equipment is greatly affected by the weather, it is not enough for the application of wind energy in the outside air, and the power generation efficiency is not high. And when the chimney-type wind power generation equipment is externally provided with several horizontal wind power generation devices whose wind impeller shafts are roughly horizontal, there will also be unsuitable use in areas with hurricanes. In addition, the air volume of the existing wind turbine power generation equipment cannot be adjusted. When the air volume is large, the power generation is high, and when the air volume is small, the power generation is small. That is, the power of the existing wind power generation system is uncontrollable and unstable.

In summary, the existing wind power generation system can be further improved.

Utility model content

The technical problem to be solved by the utility model is to provide a wind-collecting cylindrical horizontal axis power generation system that can effectively utilize geothermal energy and wind energy for power generation, which has the advantage of high power generation efficiency.

The second technical problem to be solved by the utility model is to provide a wind-collecting cylindrical horizontal-axis power generation system that can be used around the clock, especially in hurricane weather. It also has the advantage of adjustable and stable power generation.

The technical scheme adopted by the utility model to solve the above-mentioned first technical problem is: a wind-collecting cylindrical horizontal-axis power generation system, including a high tower and a horizontal-axis wind power generator set, the top of the high tower is provided with a Relative to the revolving body that rotates on the high tower, the horizontal axis wind power generator set includes a hollow casing fixed on the revolving body, a trumpet-shaped wind collecting hood arranged at the opening of the front end of the casing, and a The empennage at the rear end of the casing and the wind power generator with the wind wheel installed in the casing are characterized in that: the high tower is a hollow air duct, and the bottom side wall of the air duct has several inlets. Air holes, the rotator is hollow inside, and an air guide cover communicating with the air guide pipe is provided on the rotator, and the air outlet end of the air guide cover corresponds to the wind wheel to guide the wind The airflow in the pipe is directed to the place adjacent to the wind wheel.

In order to solve the above-mentioned second technical problem, the opening of the rear end of the casing is provided with a damper structure that can adjust the air volume. The damper structure includes a damper, a rotating shaft and a motor. The middle part of the damper is fixed on the rotating shaft and is located behind the casing. The end opening is used to cover the opening, and the rotating shaft is rotatably arranged at the rear of the casing, and the motor is connected with the rotating shaft through a reduction mechanism to drive the rotating shaft to rotate.

The motor drives the deflection of the rotating shaft and the damper fixed to it. When the damper is in the horizontal state, the damper will hardly cover the opening. The opening at the rear of the casing is the largest. When the damper is in the vertical state, the damper will basically cover the entire opening. The opening at the rear of the casing is the smallest, and the size of the opening at the rear of the casing can be adjusted. The larger the opening at the rear of the casing, the easier it is to form convection between the front and rear of the casing. The faster the rotation speed of the wind wheel, the greater the power of the generator, and the The smaller the opening at the rear end of the casing, the less likely it is to form convection flow front and rear of the casing, the slower the rotation speed of the wind wheel, and the smaller the power of the generator. When encountering hurricane weather, make the air door vertical, and then control the rotating speed of the wind wheel, can effectively prevent the generator from being damaged due to the too fast rotating speed of the wind wheel. Conversely, when the external air volume is small, make the damper level or deflect a certain angle, so that the rotating speed of the wind wheel is as large as possible. Therefore, the power generation system can be used around the clock. Due to the above reasons, by adjusting the angle of deflection of the air door, the horizontal axis power generation system can maintain a rated power generation, and the power generation is stable.

The above-mentioned air guide cover is roughly conical, the front part of the air guide cover covers the opening of the revolving body, the rear part of the air guide cover has an upwardly protruding pipe part, and the air outlet end of the air guide cover is arranged at the end of the pipe part. The upper end, corresponding to the side wall of the wind collecting hood, is provided with a through hole for the pipe part to pass through. The air guide cover is in a conical structure, that is, it forms a constricted shape, which can play the role of compressing the airflow, so that the power generation system can exert greater efficiency.

In order to make the air volume guided by the wind guide cover better to blow the wind wheel to rotate, the air outlet end of the wind guide cover is preferably facing the blade end of the wind wheel.

The above-mentioned wind generators with wind rotors are preferably designed in groups, and they can be separately installed in the casing at intervals. Using arrays of wind turbines, when the wind rotor of the latter wind generator rotates, it will form a suction process, which can increase the speed of the wind rotor of the previous wind generator, and the multiple groups of wind generators will form a step-by-step boosting process , can further improve the power generation efficiency of the power generation system.

In each of the above solutions, the outer surface of the air duct may be coated with a heat absorbing layer made of solar heat absorbing material. The heat absorbing layer can convert solar energy into heat energy, heat the air in the air duct, accelerate the air inside the air duct to move upwards, and blow the wind wheel of the wind generator, that is, the power generation system can not only use wind energy and geothermal energy, Solar energy can also be utilized to further improve the power generation efficiency of the power generation system.

Compared with the prior art, the utility model has the advantages that: while the power generation system utilizes the external wind energy, it also skillfully guides the upward airflow generated by the air convection caused by the geothermal energy to the wind rotor of the wind power generator through the air duct. , to blow the rotation of the wind wheel, so the power generation equipment can effectively use geothermal energy, wind energy and solar energy to generate electricity at the same time, thereby greatly increasing the power generation efficiency of the power generation equipment, so it is worthy of popularization and application.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the utility model embodiment;

Fig. 2 is a three-dimensional schematic diagram of the structure of the casing, the wind generator and the damper in the embodiment of the present invention;

Fig. 3 is a three-dimensional structural schematic diagram of the wind collecting hood in the embodiment of the present invention;

Fig. 4 is a schematic diagram of the three-dimensional structure of the wind guide cover in the embodiment of the present invention;

Fig. 5 is a side view of the wind guide cover in the embodiment of the utility model;

Fig. 6 is a schematic diagram of the three-dimensional structure of the air duct in the embodiment of the utility model.

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1-6, it is a preferred embodiment of the present utility model.

A wind-collecting cylinder-type horizontal-axis power generation system includes a high tower and a horizontal-axis wind turbine 1. The high tower is a hollow air guide pipe 3. The air guide pipe 3 in this embodiment is a metal pipe. Of course It can also be a tubular building made of ultra-high-strength concrete. The air duct 3 of this embodiment is straight cylindrical, and of course it can also be in the shape of a tapered barrel with the horizontal section of the upper end smaller than the horizontal section of the lower end. It can also be a hyperboloid Cylindrical structure.

The top of the air guide pipe 3 is provided with a revolving body 2 that can rotate relative to the air guide pipe 3. The revolving body 2 is also in the shape of a hollow tube. The structure that the revolving body 2 is arranged on the top of the air guide pipe 3 is a conventional structure.

The horizontal axis wind turbine 1 includes a hollow casing 11 fixed on the revolving body 2. The casing 11 is also in the shape of a straight cylinder. The casing 11 is fixed to the revolving body 2 through a bracket 9, and the bracket 9 can be welded by multiple steel pipes.

The front opening of the casing 11 is fixed with a trumpet-shaped wind collecting hood 12 , that is, the wind collecting hood 12 is narrowed and has the function of collecting wind.

The rear end of the casing 11 is provided with an empennage 13, and the function of the empennage 13 is to keep the wind generating set 1 in a windward position all the time.

There are many groups of wind generators 14 with wind wheels 141 installed in the said casing 11, the wind generators 14 can be two groups, three groups, four groups or more groups, they are respectively installed in the said Inside the casing 11.

The side wall of the bottom end of the air guide pipe 3 is spaced with several air inlets 31 along its circumferential direction, and the outer surface of the air guide pipe 3 is coated with a heat absorbing layer 32 made of solar heat absorbing material.

The gyrator 2 is provided with an air guide 4 connected to the air guide 3, and the air outlet end of the air guide 4 passes through the side wall of the wind collector 12 to guide the airflow in the air guide 3 Near the wind wheel 141, the wind guide 4 is roughly conical, the front of the wind guide 4 covers the opening of the rotating body 2, and the rear of the wind guide 4 has an upwardly protruding pipe portion 41. The wind guide 4 The air outlet end of the air guide cover 4 is arranged on the upper end of the pipe portion 41, and the side wall of the wind collecting hood 14 is provided with a through hole 121 for the pipe portion 41 to pass through, and the air outlet end of the air guide cover 4 is facing the wind wheel. 141 blade ends.

The rear opening 111 of the casing 11 is provided with a damper structure that can adjust the air volume. The damper structure includes a damper 5, a rotating shaft 6 and a motor 7. The middle part of the damper 5 is fixed on the rotating shaft 6 and is located in the casing. 11 in the opening 111 at the rear to cover the opening 111, the rotating shaft 6 is rotatably arranged at the rear of the casing 11, the motor 7 is connected to the rotating shaft 6 through a reduction mechanism 8 to drive the rotating shaft 6 to rotate , the motor 7 can be controlled by a control system, so that the damper 5 can rotate to a suitable angle at a suitable timing.

Working principle and process of the utility model embodiment are as follows:

The wind blows the wind rotor 141 of the wind generator 14 to rotate, so that the wind generator generates electricity and converts mechanical energy into usable electrical energy. The empennage 13 will drive the wind generator set 1 to deflect with the rotor 2 according to the wind direction, and adjust the angle of the wind rotor 141 , so that the wind wheel 141 is on the windward side; at the same time, due to the air convection caused by geothermal energy, an upward airflow is generated, which is guided to the position near the wind wheel 141 through the air inlet of the air guide pipe 3 and the wind guide hood 7, and further drives the wind wheel 141 to rotate , and the heat-absorbing layer 32 can convert solar energy into heat energy, heat the air in the air guide pipe 3 , accelerate the air inside the air guide pipe 3 to move upwards, and blow the wind wheel 141 of the wind generator 14 .

The motor 7 drives the deflection of the rotating shaft 6 and the damper 5 fixed thereto through the reduction mechanism 8. When the damper 5 is in a horizontal state, the damper 5 hardly blocks the opening 111, and the opening 111 at the rear of the casing is the largest. When the damper 5 is in the vertical state, the damper 5 basically covers the opening 111 completely, and the opening 111 at the rear of the casing is the smallest, so the size of the opening 111 at the rear end of the casing can be adjusted. The larger the opening 111 at the rear end of the casing, the more The easier it is to form convection before and after 11, the faster the rotation speed of the wind wheel 141 is, and the greater the power of the generator is; The machine power is smaller. When encountering hurricane weather, make damper 5 vertical, and then control the rotating speed of wind wheel 141, can effectively prevent damage generator because of wind wheel 141 rotating speed too fast; The rotating speed of the wind wheel 141 is as large as possible, so the power generation system can be used around the clock. Due to the above reasons, by adjusting the angle of deflection of the air door 5, the horizontal axis power generation system can maintain a rated power generation, and the power generation is stable.

Claims (8)

1, a kind of wind collection type barrel type cross axis power generation system, include high tower, horizontal shaft type wind power generating set (1), described high tower top is provided with the solid of rotation (2) of high tower rotation relatively, described horizontal shaft type wind power generating set (1) includes the casing (11) that is fixed in the hollow on the described solid of rotation (2), that is located at casing (11) front opening place is trumpet-shaped wind-collection cover (12), be located at the empennage (13) of casing (11) rear end and be installed in the interior wind-driven generator that has wind wheel (141) (14) of casing (11), it is characterized in that: described high tower is the guide duct (3) of a hollow, this guide duct (3) bottom sidewall has several inlet holes (31), its interior hollow of described solid of rotation (2), and on described solid of rotation (2), being provided with the wind scooper (4) that is communicated with described guide duct (3), the outlet side of this wind scooper (4) is closed on wind wheel (141) corresponding to described wind wheel with the guiding of the air-flow in the above-mentioned guide duct (3) and is located.

2, wind collection type barrel type cross axis power generation system according to claim 1, it is characterized in that: described casing (11) open rearward end (111) locates to be provided with the throttle structure of quantity-adjustable size, this throttle structure includes air door (5), rotating shaft (6) and motor (7), described air door (5) middle part is fixed in the rotating shaft (6) and is positioned at said machine casing (11) open rearward end (111) to cover described opening (111), rotatable casing (11) rear portion that is arranged on of described rotating shaft (6), described motor (7) link to each other with described rotating shaft (6) by a reducing gear (8) and rotate to drive rotating shaft (6).

3, wind collection type barrel type cross axis power generation system according to claim 1 and 2, it is characterized in that: described wind scooper (4) is roughly tapered, the anterior opening with solid of rotation (2) of wind scooper (4) covers, the rear portion of wind scooper (4) has the pipe portion (41) that raises up, the upper end of described pipe portion (41) is located in the outlet side of this wind scooper (4), and corresponding described wind-collection cover (12) sidewall is provided with the through hole (121) that passes for described pipe portion (41).

4, wind collection type barrel type cross axis power generation system according to claim 3 is characterized in that: the outlet side of described wind scooper (4) is over against the blade end of wind wheel (141).

5, wind collection type barrel type cross axis power generation system according to claim 3 is characterized in that: the outer surface of described guide duct (3) is coated with the heat-sink shell made from the solar energy heat absorbing material (32).

6, wind collection type barrel type cross axis power generation system according to claim 1 and 2 is characterized in that: the described wind-driven generator (14) that has wind wheel (141) has array, and they are installed in the described casing (11) compartment of terrain respectively.

7, wind collection type barrel type cross axis power generation system according to claim 6 is characterized in that: the outer surface of described guide duct (3) is coated with the heat-sink shell made from the solar energy heat absorbing material (32).

8, wind collection type barrel type cross axis power generation system according to claim 1 and 2 is characterized in that: the outer surface of described guide duct (3) is coated with the heat-sink shell made from the solar energy heat absorbing material (32).

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