CN101413482A

CN101413482A - High-efficiency runoff double-shaft wind motor

Info

Publication number: CN101413482A
Application number: CNA200810223694XA
Authority: CN
Inventors: 马军兴; 马建威
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-08
Filing date: 2008-10-08
Publication date: 2009-04-22

Abstract

The present invention relates to a kind of wind power conversion device, promptly a kind of high-efficiency runoff double-shaft wind motor.This wind energy conversion system, also be to be made of rotating shaft 1 and a plurality of fan page or leaf 2, be characterized in: said rotating shaft 1 has two, and a plurality of fan pages or leaves 2 all are equipped with in the outside of every rotating shaft 1, the distance of two rotating shafts 1 is less than two fan pages or leaves, 2 width sums, i.e. the fan page or leaf 2 of two rotating shafts 1 is interspersed mutually blocking between two rotating shafts 1.Its fan page or leaf 2 preferred parabola pages, because the concave surface windage of fan page or leaf 2 is bigger, the convex surface windage is less, convex surface fan page or leaf 2 blocks mutually 1 of two rotating shaft in addition, can further reduce windage, cause the reactive torque of the moment of torsion of two vertical shafts, 1 outside fan page or leaf 2 much larger than 1 fan page or leaf 2 of two rotating shafts, fan page or leaf between two rotating shafts pushes away band mutually in rotation in addition, the fan page or leaf stressed defective of decreasing of supporting mutually in flow fan both sides, existing footpath is overcome, the big advantage of its lifting surface area is highlighted, and the wind energy transformation rate significantly improves, and simple in structure, stable performance, thus advanced technical equipment provided for Wind Power Utilization.

Description

High-efficiency runoff double-shaft wind motor

Technical field

The present invention relates to a kind of wind power conversion device, promptly a kind of high-efficiency runoff double-shaft wind motor.

Background technique

Wind energy conversion system is the mechanical device by turned work done or energy storage.In short supply along with the energy, wind energy conversion system more and more is subject to people's attention.The kind of wind energy conversion system is a lot, if divide according to the relation of rotating shaft and wind direction, mainly contains two kinds of axial flow and radial-flow types.The rotating shaft of axial flow wind energy conversion system is consistent with wind direction, is horizontal axis, and fan page frame table and shaft axis are perpendicular.The rotating shaft of radial-flow type wind energy conversion system mostly is vertical shaft, and the fan page or leaf stands on the outside of vertical shaft.Certainly, rotating shaft is a substantially horizontal, but not consistent with wind direction, or the wind energy conversion system vertical with wind direction also should belong to the scope of runoff, but this wind energy conversion system is rarely found.By general knowledge as can be known, the fan page of axial flow wind energy conversion system is long-pending smaller, generally has only 3, and the state of rest blowing area is very limited, and this is the major defect of axial flow wind energy conversion system.The fan page of radial-flow type wind energy conversion system is long-pending bigger, and, the symmetry of rotating shaft both sides fan page or leaf is simultaneously stressed, and moment of torsion is opposite, cancels out each other, and wind power utilization efficient is extremely low, has limited the application of radial-flow type wind energy conversion system.If can solve the problem that both sides moment offsets, the radial-flow type wind energy conversion system will have more superiority than axial flow wind energy conversion system.In existing patent documentation, can see the offset scheme of problem of many solution radial-flow type wind energy conversion systems both sides moment, wherein mostly adopt on the fan page or leaf and have a plurality of wind hole, the method of single-way switch is installed on each wind hole, the structure more complicated, the rate of fault height, use value is lower, does not obtain penetration and promotion so far.

Summary of the invention

It is very little to the purpose of this invention is to provide the offset amount of moment of a kind of rotating shaft both sides fan page or leaf, and Wind Power Utilization efficient is than high-efficiency runoff formula double-shaft wind motor higher and simple in structure, working stability.

Above-mentioned purpose is realized by following technological scheme: developing a kind of high-efficiency runoff double-shaft wind motor, also is to be made of rotating shaft and a plurality of fan page or leaf.Different is: said rotating shaft has two, and a plurality of fan pages or leaves all are equipped with in the outside of every rotating shaft, and the distance of two rotating shafts is less than two fan page width degree sums, i.e. the fan page or leaf of two rotating shafts is interspersed mutually blocking between two rotating shafts.

Said rotating shaft is vertical shaft or two parallel transverse axis of two parallel settings.

Said fan page or leaf is a curved surface fan page or leaf.

The perpendicular cross section of said curved surface fan page or leaf and shaft axis is a parabola, and is comparatively straight near the line segment of rotating shaft, from rotating shaft relatively bending of line segment far away.

Uniform fan page or leaf more than three around said every rotating shaft.

Said two rotating shafts are contained in one the pedestal side by side, and are rotationally connected with pedestal, and the last lower transverse frame that semiaxis and support are all arranged up and down of pedestal is rotationally connected, and support is fixed on ground.

Respectively install a gear in said two rotating shafts, two gears are meshed and mutual reverse rotation.

The top of said pedestal is provided with the guiding wind wing.

The top of said pedestal is provided with the guiding empennage, is equipped with and said two rotating shaft barge boards on the place ahead pedestal of guiding empennage, and barge board is horn shape along the center line doubling that parallels with two rotating shafts.

The lower end of said rotating shaft interrelates by driving mechanism and wind energy converter.

The invention has the beneficial effects as follows: because the concave surface windage of curved surface fan page or leaf is bigger, the convex surface windage is less, convex surface fan page or leaf blocks or adds forwardly barge board mutually between two vertical shafts in addition, can further reduce windage, the reactive torque that the moment of torsion that two rotating shafts outside fan page or leaf is produced produces much larger than fan page or leaf between two rotating shafts, and the fan page or leaf between two rotating shafts pushes away band mutually in rotation, further reduce reactive torque, flow fan both sides, the footpath stressed shortcoming that offsets of fan page or leaf is overcome, and the advantage that its lifting surface area is big is highlighted.Experimental results demonstrate: this wind energy conversion system is simple in structure, stable performance, and the wind energy transformation rate significantly improves, and is a kind of advanced person's Wind Power Utilization equipment.

Description of drawings

Fig. 1 is first kind of embodiment's a plan view;

Fig. 2 is first kind of embodiment's a plan view;

Fig. 3 is the working principle schematic representation;

Fig. 4 is second kind of embodiment's a plan view;

Fig. 5 is the third embodiment's a plan view;

Fig. 6 is the third embodiment's a plan view;

Fig. 7 is the third embodiment's a left view;

Fig. 8 is the 4th kind of embodiment's a plan view;

Fig. 9 is the 4th kind of embodiment's a plan view;

Figure 10 is the 4th kind of embodiment's a left view;

Figure 11 is the 5th kind of embodiment's a plan view;

Figure 12 is the 5th kind of embodiment's a plan view.

Figure 13 is the 6th kind of embodiment's a plan view;

Figure 14 is the 6th kind of embodiment's force analysis figure;

Figure 15 is the 7th kind of embodiment's a plan view;

Figure 16 is the 7th kind of embodiment's a plan view.

Among the figure as seen: rotating shaft 1, fan page or leaf 2, pedestal 3, gear 4, support 5, semiaxis 6, transducer 7, guiding empennage 8, barge board 9.

Embodiment

Shown in first kind of embodiment: Fig. 1,2,3, this wind energy conversion system has two rotating shafts of existing side by side 1, and three fan pages or leaves 2 all are housed in every rotating shaft 1.See that from Fig. 1 these fan pages or leaves are all rectangular, be contained in the outside of erectting rotating shaft 1.From Fig. 2, these fan pages or leaves 2 be distributed on vertical shaft 1 around, each fan page or leaf 2 all is a curved plate.Illustrated curved plate is a kind of parabola, and more straight near the part of rotating shaft 1, promptly radius of curvature is bigger, and relatively more crooked away from the edge section of rotating shaft 1, promptly radius of curvature is less.The distance of two rotating shafts 1 is closer, less than two fan pages or leaves, 2 width sums, thereby interspersed mutually from the fan page or leaf 2 that turns between two vertical shafts 1.The stressing conditions of this as shown in Figure 3 fan page or leaf, fan page or leaf 2 concave surfaces of both sides are relative with wind-force F, and middle fan page or leaf 2 convex surfaces facing the wind, and block mutually, and wind-exposuring area is less than two fan pages or leaves 2, and part convex surface wind-force P can take advantage of a situation and slide to both sides, increasing both sides concave surface stressed.Obviously stressed greater than the centre of the outside stressed causes two vertical shafts 1 all to obtain enough moments of torsion and to inner rotary.

In experiment, find, fan page or leaf 2 between two rotating shafts 1 has not only reduced blowing area because of blocking, and in illustrated rotation, the fan page or leaf back of front forms negative pressure, drives the fan page or leaf generation drive A of air-flow to the back, simultaneously, the fan page or leaf 2 of back has also produced Driving force B to the fan page or leaf of front, and rotating speed is high more, and power AB is big more, two power phase looks are long, produced beyond thought effect.

Certainly, this wind energy conversion system preferably is equipped with the automatic wind facing device, otherwise, just can only under illustrated wind direction, work.Both having made is like this, and season or the place relatively determined at wind direction also have certain use value.

Second kind of embodiment: the quantity of the fan page or leaf 2 of this wind energy conversion system can have multiple, and precedent fan page or leaf 2 has three, and originally for example shown in Figure 4 have four to fan page or leaf 2.Certainly can also be more, but the quantity of fan page or leaf 2 should adapt with the parameters such as distance of its width dimensions, page degree of crook and two vertical shafts 1.Certainly, the degree of crook of the page can be spreaded to the straight page.

The third embodiment: shown in Fig. 5,6,7, two of this wind energy conversion system two ends up and down of erectting rotating shafts 1 all are that to be contained in a rectangle pedestal 3 by bearing are the insides, and being respectively equipped with a semiaxis 6 on the mid point of two frames up and down of this pedestal 3, pedestal 3 is contained in support 5 the insides by these two semiaxis 6.Support 5 tops are rectangular frames, and two semiaxis 6 are rotationally connected with the upper ledge and the lower frame of support 5 respectively.The bottom of support 5 and ground or other bases fix.As seen, the pedestal 3 here can rotate in support 5 the insides.

Can also see among the figure, each fixes the gear 4 of a horizontal below two vertical shafts 1, two gears 4 are meshed, guarantee that thus two mutual synchronous backwards of vertical shaft rotate, and orientation that can adjustable axle frame 3 makes two rotating shafts and fan page or leaf initiatively keep an angle relative with wind direction and that moment of rotation is maximum.Certainly, 4 pairs of synchronous effects that two vertical shafts 1 produced of the gear here also can realize with other technologies such as electric control device or device.

The same with the wind energy conversion system of routine, vertical shaft 1 lower end here will interrelate with wind energy converter 7.This transducer 7 both can be a generator, also can be water elevator, may be again energy storage device.Both can be contained in below the vertical shaft, also can be contained in below two vertical shafts.Only enumerate one among the figure and constitute the example of transducer 7 by gearbox and generator, can not exhaustive all application modes.

The 4th kind of embodiment: shown in Fig. 8,9,10, the semiaxis 6 above the pedestal 3 stretches out the upper ledge of support 5, and a guiding empennage 8 is housed above.Guiding empennage 8 can be determined the sense of rotation of pedestal 3 under the effect of wind-force, thereby can keep the plane at two rotating shaft 1 places perpendicular with wind direction all the time, thereby obtains maximum wind-force.

The 5th kind of embodiment: the shape of said pedestal 3 can have multiple, as long as can support two rotating shafts 1 and the fan page or leaf rotates, and itself can rotate on support 5 and gets final product.Shown in Figure 11,12, the pedestal 3 here is that two tripods constitute by three columns about in the of one.At the tripod middle part horizontal frame is housed rotating shaft 1 is installed, and two semiaxis 6 are housed respectively up and down.Obviously, the stability of this pedestal 3 is more better.

The 6th kind of embodiment: shown in Figure 13,14, a barge board 9 is equipped with in the front of pedestal 3.The section of overlooking of barge board 9 is the plate face is pointed shape from middle doubling two boards faces.Just retaining is in the front of two rotating shafts 1.Guiding empennage 8 makes the barge board 9 of two rotating shaft planes, 1 place and front relative with wind direction all the time by the position of wind control pedestal 3 above.Its stressed effect as shown in figure 14, the fan page or leaf between two rotating shafts 1 right air-flow kept out by barge board 9, have only the outside the fan page or leaf can receive wind-force.The barge board 9 of pointed shape also divides air-flow to both sides in addition, has strengthened the pressure of both sides fan pages or leaves, thereby can obtain bigger moment of rotation.

The 7th kind of embodiment: said rotating shaft 1 not only can be erect, and also can be level, or tilt.Two rotating shafts 1 shown in Figure 15,16 are the level of state, and other structures are identical with third and fourth kind embodiment, also can work under the effect of wind-force.

The 8th kind of embodiment: this wind energy conversion system in use can adopt a plurality of monomers as requested simultaneously, forms various array.

Claims

1. high-efficiency runoff double-shaft wind motor, also be to constitute by rotating shaft and a plurality of fan page or leaf, it is characterized in that: said rotating shaft (1) has two, a plurality of fan pages or leaves (2) all are equipped with in the outside of every rotating shaft (1), the distance of two rotating shafts (1) is less than two fan page or leaf (2) width sums, i.e. the fan page or leaf (2) of two rotating shafts (1) is interspersed mutually blocking between two rotating shafts (1).

2. high-efficiency runoff double-shaft wind motor according to claim 1 is characterized in that: said rotating shaft (1) is vertical shaft or two parallel transverse axis of two parallel settings.

3. high-efficiency runoff double-shaft wind motor according to claim 1 is characterized in that: said fan page or leaf (2) is a curved surface fan page or leaf (2).

4. high-efficiency runoff double-shaft wind motor according to claim 4, it is characterized in that: the perpendicular cross section of said curved surface fan page or leaf (2) and shaft axis is a parabola, line segment near rotating shaft (1) is comparatively straight, and is relatively more crooked away from the line segment of rotating shaft (1).

5. high-efficiency runoff double-shaft wind motor according to claim 1 is characterized in that: the uniform all around fan page or leaf (2) more than three of said every rotating shaft (1).

6. high-efficiency runoff double-shaft wind motor according to claim 1, it is characterized in that: said two rotating shafts (1) are contained in one the pedestal (3) side by side, and be rotationally connected with pedestal (3), all have the up and down semiaxis (6) and the last lower transverse frame of support (5) of pedestal (3) are rotationally connected, and support (5) is fixed on ground.

7. high-efficiency runoff double-shaft wind motor according to claim 1 is characterized in that: respectively install a gear (4) in said two rotating shafts (1), two gears (4) are meshed and mutual reverse rotation.

8. efficient upright shaft wind motor according to claim 1 is characterized in that: the top of said pedestal (3) is provided with guiding empennage (8).

9. efficient upright shaft wind motor according to claim 8, it is characterized in that: the top of said pedestal (3) is provided with guiding empennage (8), on the place ahead pedestal (3) of guiding empennage (8) barge board (9) relative with two rotating shafts (1) is housed, barge board (9) is horn shape along the center line doubling that parallels with rotating shaft (1).

10. high-efficiency runoff double-shaft wind motor according to claim 1 is characterized in that: an end of said rotating shaft (1) interrelates by driving mechanism and wind energy converter (7).