CN102953934A - Box-type wind turbine generator - Google Patents

Abstract

The invention relates to a box-type wind turbine generator which comprises a wind turbine, a tower (9), an increasing gear (8) and a generator (10). The box-type wind turbine generator is characterized in that the wind turbine consists of six box-type blades (10, 11, 12, 13, 14 and 15) which are on a same plane, form included angles of 60 DEG and are fastened to a nose through bolts. Each blade is in a rectangular box shape, a windward side of each blade is provided with a rectangular box-type opening, and a leeward side of each blade is provided with a rectangular box-type round bottom. The six box-type blades (10, 11, 12, 13, 14 and 15) are evenly, horizontally, transversely and circularly distributed on the same plane. Each blade may horizontally extend 70-80m long. The nose (3) and a brake coupling (7) are connected with an input shaft of the increasing gear (8). An output shaft of the increasing gear (8) is connected with the generator (9) through a coupling (6). A spindle (2) is in travelling connection with the tower (4) through a bearing component (1). A hydraulic brake rack (5) is fixedly connected with the tower (4) through screws.

Description

Box type wind driven generator

Technical field: the present invention relates to a kind of wind-driven generator, particularly a kind of vertical axis aerogenerator.

Background technique: the transformation applications of wind energy mainly is to utilize wind-driven generator that wind energy is converted to applicable electric power energy.Wind-driven generator is divided into three parts: wind energy conversion system, booster engine and generator, and wind energy conversion system can be divided into two large classes according to the structure that wind rotates, and a class is horizontal-shaft wind turbine, and another kind of is vertical axis windmill.Now widely used is horizontal axis wind-driven generator, but there is some obvious defectives; Must be installed in the top of tens of meters tower cylinder such as generator, the empennage of wind energy conversion system or navigation system, driving the head of heavy wind-driven generator and obtaining the required huge blade of enough power, ceaselessly adjustment makes it comply with wind direction, and the ability that therefore adapts to different wind directions is relatively poor.Because blade rotates, so steel tower cylinder must be very large, very highly could support corresponding huge wind energy conversion system in vertical surface.Thereby horizontal-shaft wind turbine exists that volume is large, complex structure, tower cylinder are highly higher, the defectives such as installation and maintenance difficulty.And the impeller of vertical axis windmill is to rotate in horizontal plane, thus it have simple in structure, the little steel tower of volume cylinder is low, to advantages such as wind direction adaptation are strong, safe and reliable, easy to maintenance, gradually adopted now this structure; But also there are some obvious shortcomings in it, is subjected to the wind-force area little such as blade, and it is little to obtain energy, and wind energy utilization is low, at present can only small-sized small-scale operation generating.

Extensively retrieve for the problems referred to above, still find no technological scheme related to the present invention.

Summary of the invention: purpose of the present invention is exactly in order to solve a kind of boxlike blade vertical shaft wind-driven generator that the Driving force that exists in the prior art is little, wind energy utilization is low and design.

To achieve these goals, the present invention has adopted following technological scheme:

A kind of box type wind driven generator, it is comprised of wind energy conversion system, tower cylinder, booster engine and generator.It is characterized in that: wind energy conversion system be by six on the same level face, and be mutually 60 the degree angles, consist of at the boxlike blade that head tightens with bolt; Blade is cuboid boxlike shape, and the blade one side of facining the wind is the opening of cuboid boxlike, and leeward one side is the round bottom of cuboid boxlike, and six boxlike blades horizontal cross annular on the same level face is uniform, and length of blade can horizontal-extending 70 meters-80 meters; Head is connected with the input shaft of booster engine with the brake coupling by main shaft, and the output shaft of booster engine is connected with generator with coupling again, and head spindle and tower cylinder move about with bearing unit and connect.

The invention has the advantages that wind energy conversion system need not to recognize wind direction, the power of generation is large, and energy transformation ratio is high.It also has volume little in addition, and the tower cylinder is highly low, and cost hangs down and the advantages such as installation and maintenance make things convenient for; Particularly powerful wind-power electricity generation can be realized in low wind speed area, during such as wind speed 3 meter per second, generating can be realized.

For the present invention is described in further detail, following accompanying drawing provides a most preferred embodiment of the present invention.

Description of drawings: Fig. 1 is the plan view of the embodiment of the invention, and Fig. 2 is the plan view of Fig. 1; Shown in Figure 3 is the left sectional view A-A of boxlike blade 13; Fig. 4 and shown in Figure 5 be the boxlike blade, Fig. 4 is the plan view of Fig. 5, Fig. 5 is the plan view of Fig. 4.

Embodiment: embodiment; As shown in Figure 1 and Figure 2, be bolted connection six boxlike blades 10,11,12,13,14,15 at head 3, six boxlike blades are mutually 60 ° of angles in the same level face, blade is cuboid boxlike shape, it is the opening of cuboid boxlike that blade facings the wind simultaneously, and leeward one side is the round bottom of cuboid boxlike, and six boxlike blades horizontal cross annular on the same level face is uniform, the upper end of the lower end of head 3 and vertical major 2 is that axle and axle sleeve are connected.Vertical major 2 is cooperated to move about by Bearing assembly 1 with tower cylinder 4 and is connected.The input shaft upper end of being connected with booster engine by brake coupling 7 (being furnished with brake disc) in the lower end of vertical major 2 connects; The rotor shaft upper end that the output shaft of booster engine 8 lower ends is connected with generator with coupling 6 connects; Electric generator casing and tower cylinder are fastening affixed.Water brake frame 5 is connected with the tower cylinder and is connected with fastened by screw.These all belong to the prior art category.

As seen from the figure, working procedure of the present invention is as follows: shown in the wind direction W among Fig. 2, the boxlike blade 10 that is installed on the head 3 is in the zone that facings the wind, and the cuboid boxlike opening of blade 10 windward sides becomes in opposite directions state with the wind-force direction, forms the wind-engaging form; Windward side at blade 10 produces air swirl 17, and blade 10 can obtain than the strong power energy, and blade 10 has produced very large Driving force.Meanwhile: the blade 13 that is installed on the head 3 is in leeward state, blade 13 lee face cuboid boxlike round bottoms become in opposite directions state with the wind-force direction, form the back side form of facining the wind, because of the circular smooth shape of the lee face of blade 13, air-flow 16 is very little from the windage that blade 13 circular smooth lee faces slip over rapidly generation.Be installed in addition blade 11 on the head 3 and blade 15 and be in the prism state that facings the wind, blade 11 and blade 15 also can obtain certain energy.Blade 12 and blade 14 are in the leeward state of prism, and the windage that air-flow 16 slips over rapidly generation is very little.Head 3 is subject to the Driving force that produces from air swirl 17 on boxlike blade 10 and boxlike blade 12 and boxlike blade 14 windward sides, head 3 begins rotation.In head 3 rotations, boxlike blade 15 is dragged to the position of the positive state that facings the wind, and blade 15 begins the overall process of repetition blade 10 operations.Blade 10 and blade 14 enter the prism form of facining the wind, and on the windward side of blade 15, blade 10 and blade 14, air swirl 17 has produced again very large Driving force.Meanwhile blade 12 enters the back side and answers the wind state, and blade 11 and blade 13 enter the oblique side back side form of facining the wind, and air-flow 16 slips over rapidly generation from the back side of blade 12, blade 11 and blade 13 windage is very little.Head 3 begins again to be subject to the Driving force from positive windward blades 15 and prism windward blades 10 and blade 14, be subject to head 3 alternate cycles the Driving force that blade 10, blade 15, blade 14, blade 13, blade 12, blade 11 produce like this, make a concerted effort to produce continuously rotation torque and accelerate rotation thereby be gathered into rotation at head 3; Head 3 flows to booster engine 8 to torque by vertical major 2 again when accelerating rotation, drive the rotor of generator 9 after rotational speed is promoted by booster engine 8, and generator 9 begins generating.

Claims (1)

1. box type wind driven generator, it is comprised of wind energy conversion system, tower cylinder, booster engine and generator, it is characterized in that: wind energy conversion system be by six on the same level face, and be mutually 60 degree angles, consist of at the box type blade that head tightens with bolt; Blade is cuboid box type shape, and the blade one side of facining the wind is the opening of cuboid box type, and leeward one side is the round bottom of cuboid box type, and six box type blades horizontal cross annular on the same level face is uniform, and length of blade can horizontal-extending 70 meters-80 meters; Head is connected with the input shaft of booster engine with the brake coupling by main shaft, and the output shaft of booster engine is connected with generator with coupling again, and head spindle and tower cylinder move about with bearing unit and connect.

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