CN202040012U

CN202040012U - Combined vertical axis wind turbine

Info

Publication number: CN202040012U
Application number: CN 201120147611
Authority: CN
Inventors: 刘新广
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-11
Filing date: 2011-05-11
Publication date: 2011-11-16
Anticipated expiration: 2021-05-11

Abstract

The utility model relates to a combined vertical axis wind turbine. A lower circular disk is concentrically connected onto a vertical axis of a vertical axis wind turbine, and two semicircular blades are connected onto the upper end face of the lower circular disk to form a lower S-shaped wind turbine; a middle circular disk is concentrically connected with the upper end of the lower S-shaped wind turbine, and another two semicircular blades are connected onto the upper end face of the middle circular disk to form an upper S-shaped wind turbine; the directional lines on which the diameters of the blades of the upper and lower S-shaped wind turbines are positioned are vertical to each other; the upper end of the upper S-shaped wind turbine is connected with an upper circular disk; a plurality of blades are connected between the upper end face of the lower circular disk and the lower end face of the upper circular disk, so that a novel Darrieus wind turbine is formed; the blades of the novel Darrieus wind turbine are positioned on the peripheries of the upper and lower S-shaped wind turbines; a rotating axle center of the novel Darrieus wind turbine is coincident with rotating axle centers of the upper S-shaped wind turbine and the lower S-shaped wind turbine; and the combined vertical axis wind turbine is formed by the novel Darrieus wind turbine, the upper S-shaped wind turbine and the lower S-shaped wind turbine. The combined vertical axis wind turbine has no starting dead angles, is more stable to rotate and has high maximum power coefficient, so the combined vertical axis wind turbine has higher efficiency.

Description

The combination type vertical axis wind energy conversion system

Technical field

The utility model relates to the wind energy conversion system technology, particularly a kind of combination type vertical axis wind energy conversion system.

Background technique

At present, vertical axis windmill commonly used be S type (resistance difference type) wind wheel or Dari eritrea type (lift-type) wind wheel, this is because they are simple in structure, make easily, and than the power factor height of the vertical axis windmill of other its forms.S type wind energy conversion system peak output coefficient can reach 0.3 (theoretical approximative value), and Dari eritrea type wind energy conversion system peak output coefficient is worth a little more than this, and Dari eritrea type wind energy conversion system materials being fabricated economizes most, so it is by commonly used.But: the first, the peak output coefficient of these two kinds of vertical axis windmills is half as large more than the peak output coefficient (theoretical value is about 0.6) of horizontal-shaft wind turbine, and this defective is the main reason that restriction is used them; The second, they are in operation, and the active force that the cycle that always is subjected to changes and produce aerodynamic loading power and increase easily causes the self-excited vibration of blade and the fatigue ruption of material; The 3rd, there are the wind direction dead angle in they and effective wind effect, promptly, when the blade diameter direction of S type wind energy conversion system is consistent with wind direction, can not obtain torque, when the symmetry plane of the foline aerofoil profile of the blade of Dari eritrea type wind energy conversion system is consistent with wind direction, can not obtain torque, so have the starting dead point, need auxiliary starter.The second and the 3rd defective also is the main cause that restriction is used them.

Summary of the invention

The utility model designs a kind of combination type vertical axis wind energy conversion system, overcomes the above-mentioned defective of S type wind energy conversion system and Dari eritrea type wind energy conversion system, and the peak output coefficient is higher, and it is more steady to turn round.

The utility model is achieved through the following technical solutions.

Show as Fig. 1 to Fig. 3.Concentric connects lower disc 10 on the vertical shaft 2 of vertical-axis generators 1, semicircle blade 3 and No. two semicircle blades 9 are connected in lower disc 10 upper-end surfaces according to the structure of S type wind energy conversion system and form S type wind energy conversion system down, the axis of rotation of following S type wind energy conversion system and the axis coinciding of lower disc 10; Disk 8 in the upper end concentric of S type wind energy conversion system connects down, disk 8 upper-end surfaces were formed and are gone up S type wind energy conversion system during No. three semicircle blades 5 and No. four semicircle blades 7 were connected in according to the structure of S type wind energy conversion system, the axis of rotation of last S type wind energy conversion system and middle disk 8 axis coincidings, make the line of direction D (Fig. 3 shows) at diameter place of line of direction C (Fig. 2 shows) and a semicircle blade 3 at diameter place of No. three semicircle blades 5 and No. four semicircle blades 7 and No. two semicircle blades 9 orthogonal, it is orthogonal to go up S type wind energy conversion system and following S type wind energy conversion system in brief; Connect disk 6 in the upper end of No. three semicircle blades 3 and No. four semicircle blades 9, the axle center of last disk 6 overlaps with the axis of rotation of last S type wind energy conversion system; Between the lower end surface of the upper-end surface of lower disc 10 and last disk 6, connect number leaf (being generally two leaves or three leaves) blade 4 and form these new Dari eritrea type wind energy conversion systems according to Dari eritrea type wind energy conversion system structure, the aerofoil profile of blade 4 has lift effect, blade 4 encloses outside last S type wind energy conversion system and following S type wind energy conversion system, the angle that makes the blade of this new Dari eritrea type wind energy conversion system and the vane collocation of the blade of last S type wind energy conversion system, following S type wind energy conversion system become to optimize, new Dari eritrea type wind energy conversion system axis of rotation overlaps with the axis of rotation of last S type wind energy conversion system and following S type wind energy conversion system; Xin Dalie wind energy conversion system, last S type wind energy conversion system, following S type wind energy conversion system constitute described combination type vertical axis wind energy conversion system.

When described combination type vertical axis wind energy conversion system is arrived in the wind of any substantially horizontal, because the number of blade rareness (being generally two leaves or three leaves) of Xin Dalie wind energy conversion system, wind also can blow to the blade of upper and lower S type wind energy conversion system by the space between two blades of Xin Dalie wind energy conversion system to the blade of Xin Dalie wind energy conversion system.Because upper and lower S type wind energy conversion system is orthogonal,, make the sensitive starting of combination type vertical axis wind energy conversion system so the blade and next eolian starting angle much larger than zero degree of a S type wind energy conversion system are at least always arranged.After the starting, wind makes described combination type vertical axis wind energy conversion system rotation, thereby drives generator for electricity generation Xin Dalie wind energy conversion system, upward S type wind energy conversion system, S type wind energy conversion system work done down.

The effect that the utility model is useful:

1, because upper and lower S type wind energy conversion system is orthogonal, there is not the starting dead angle in described combination type vertical axis wind energy conversion system.

2, upper and lower S type wind energy conversion system is orthogonal, and the blade of described Da Lie wind energy conversion system becomes the angle of optimization with the vane collocation of upper and lower S type wind energy conversion system, just can slow down the active force alternate of wind greatly to described combination type vertical axis wind energy conversion system, make it stressed more steady, alleviate noise, significantly alleviate the self-excited vibration of blade and the fatigue ruption of material, prolong the life-span of combination type vertical axis wind energy conversion system.

3, because mutually perpendicular upper and lower S type wind energy conversion system is set in the empty stomach of Da Lie wind energy conversion system, the more wind-force that the independent Da Lie wind energy conversion system of energy capture ratio receives has improved the energy density that receives wind.So the S type wind energy conversion system Da Lie wind energy conversion system or independent that described combination type vertical axis wind energy conversion system peak output coefficient ratio is independent is much higher, estimate big more than 0.45, so described combination type vertical axis wind energy conversion system efficient is higher.

4, owing to above advantage, described combination type vertical axis wind-force function obtains promoting, and also should widely popularize, and promote easily.To wind energy power cause important meaning again.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the B-B sectional view of Fig. 1.

Embodiment

Embodiment: show as Fig. 1 to Fig. 3.Concentric connects lower disc 10 on the vertical shaft 2 of vertical-axis generators 1, semicircle blade 3 and No. two semicircle blades 9 are connected in lower disc 10 upper-end surfaces according to the structure of S type wind energy conversion system and form S type wind energy conversion system down, the axis of rotation of following S type wind energy conversion system and the axis coinciding of lower disc 10; Disk 8 in the upper end concentric of S type wind energy conversion system connects down, disk 8 upper-end surfaces were formed and are gone up S type wind energy conversion system during No. three semicircle blades 5 and No. four semicircle blades 7 were connected in according to the structure of S type wind energy conversion system, the axis of rotation of last S type wind energy conversion system and middle disk 8 axis coincidings, make the line of direction D (Fig. 3 shows) at diameter place of line of direction C (Fig. 2 shows) and a semicircle blade 3 at diameter place of No. three semicircle blades 5 and No. four semicircle blades 7 and No. two semicircle blades 9 orthogonal, it is orthogonal to go up S type wind energy conversion system and following S type wind energy conversion system in brief; Connect disk 6 in the upper end of No. three semicircle blades 5 and No. four semicircle blades 7, the axle center of last disk 6 overlaps with the axis of rotation of last S type wind energy conversion system; Between the lower end surface of the upper-end surface of lower disc 10 and last disk 6, connect number leaf (being generally two leaves or three leaves) blade 4 and form these new Dari eritrea type wind energy conversion systems according to Dari eritrea type wind energy conversion system structure, the aerofoil profile of blade 4 has lift effect, blade 4 encloses outside last S type wind energy conversion system and following S type wind energy conversion system, the angle that makes the blade of this new Dari eritrea type wind energy conversion system and the vane collocation of the blade of last S type wind energy conversion system, following S type wind energy conversion system become to optimize, new Dari eritrea type wind energy conversion system axis of rotation overlaps with the axis of rotation of last S type wind energy conversion system and following S type wind energy conversion system; Xin Dalie wind energy conversion system, last S type wind energy conversion system, following S type wind energy conversion system constitute described combination type vertical axis wind energy conversion system.

Claims

1. combination type vertical axis wind energy conversion system, it is characterized in that: go up concentric at the vertical shaft (2) of vertical-axis generators (1) and connect lower disc (10), a semicircle blade (3) and No. two semicircle blades (9) are connected in lower disc (10) upper-end surface composition S type wind energy conversion system down, the axis coinciding of the axis of rotation of following S type wind energy conversion system and lower disc (10) according to the structure of S type wind energy conversion system; Disk (8) in the upper end concentric of S type wind energy conversion system connects down, No. three semicircle blades (5) and No. four semicircle blades (7) are connected in upward S type wind energy conversion system of middle disk (8) upper-end surface composition according to the structure of S type wind energy conversion system, the axis of rotation of last S type wind energy conversion system and middle disk (8) axis coinciding make the line of direction (D) at diameter place of line of direction (C) and a semicircle blade (3) at diameter place of No. three semicircle blades (5) and No. four semicircle blades (7) and No. two semicircle blades (9) orthogonal; Connect upward disk (6) in the upper end of No. three semicircle blades (5) and No. four semicircle blades (7), the axle center of last disk (6) overlaps with the axis of rotation of last S type wind energy conversion system; Between the lower end surface of the upper-end surface of lower disc (10) and last disk (6), connect number leaf blade (4) and form this new Dari eritrea type wind energy conversion system according to Dari eritrea type wind energy conversion system structure, the aerofoil profile of blade (4) has lift effect, blade (4) encloses outside last S type wind energy conversion system and following S type wind energy conversion system, and new Dari eritrea type wind energy conversion system axis of rotation overlaps with the axis of rotation of last S type wind energy conversion system and following S type wind energy conversion system.