WO2009049454A1

WO2009049454A1 - A taichi eight diagrams type of photovoltaic power generation device with counterweights

Info

Publication number: WO2009049454A1
Application number: PCT/CN2007/003765
Authority: WO
Inventors: Shun Wu Ng
Original assignee: Shun Wu Ng
Priority date: 2007-10-16
Filing date: 2007-12-25
Publication date: 2009-04-23
Also published as: CN101378237A

Abstract

A Taichi eight diagrams type of photovoltaic power generation device with counterweights (411,412) includes a solar receiver (1) and an all weather automatic solar tracking device. The all weather automatic solar tracking device is mainly made up of counterweights (411,412) and swinging devices (421,422). The counterweights (411,412) include a counterweight (411) of east-west direction, a counterweight (412) of south-north direction, or their combination.

Description

Taiji gossip type photovoltaic power generation device with balance hammer

The present invention generally relates to a solar silicon wafer power generating device, and more particularly to a photovoltaic power generating device with a solar tracking device. Background technique

At present, there are many ways to improve the power generation efficiency of silicon wafers in the photovoltaic power generation industry, but the effective amplification factor is not large, and there is a problem of high cost in grid-connected power generation. At the same time, large-scale solar tracking mechanisms have the following worldwide technical problems: Gearboxes are often damaged, maintenance costs are high, and power generation cannot be performed normally. The reason is that its intermittent tracking technology is flawed. When the start-up, especially at the stop, the angular acceleration is too large, the gearbox is destroyed in a short time, eventually causing it to malfunction. Summary of the invention

The purpose of the Taiji gossip photovoltaic power generation unit with the counterweight is to improve the power generation efficiency of the solar silicon wafer, and the device can increase the power generation efficiency by 8-10 times than that of the ordinary flat-plate solar silicon wafer power generation device, and the gear is not damaged when tracking the day. The solar silicon wafer power generation device that automatically saves solar light according to the different positions of the device and the changing seasons of the device, its key technology is - balance hammer.

To achieve the above object, the technical solution of the present invention is:

A Taiji gossip type photovoltaic power generation device with a balance hammer, comprising a solar receiver and an all-weather automatic day tracking device; the all-weather automatic day tracking device is mainly composed of a balance hammer and a swing device, the balance The hammer includes an east-west balance hammer or a north-south balance hammer or a combination of the two.

The solar receiver is a flat-plate solar silicon wafer that directly receives sunlight. The solar light receiver comprises a solar silicon wafer and a light superimposing reflecting device; the light superimposing reflecting device comprises more than one layer of coaxially stacked cone mirror groups; the solar silicon wafer is disposed on The light of each layer of the pyramid mirror is superimposed within the range.

The solar light receiver comprises a solar silicon wafer and a light superimposing and reflecting device; the light superimposing and reflecting device is formed by stacking five or more layers of light superimposed mirror groups coaxially, the first layer of light The superimposed mirror is continuously arranged in an eight-turn structure by eight trapezoidal plane mirror units, each of the trapezoidal plane mirror unit and the second layer of light superimposing mirror to the last layer of the light superimposing mirror of a plane mirror unit X Correspondingly arranged side by side into a row of planar mirror unit groups, from the third layer, two adjacent columns of reflective unit groups are provided with a plane mirror unit Y on the corresponding mirror layer, the plane mirror unit X is rectangular, the third layer Corresponding plane mirror unit Y is trapezoidal, and the fourth layer and the fourth layer are rectangular; the stacking mirrors of each layer are arranged in the stacking order from the inside to the outside, and the plane mirror unit and the center line of the light superimposing mirror are clamped. The angle (3 is gradually reduced; the solar silicon wafer is suspended upside down, and the illuminated surface is directed toward the light superimposing reflection device, and the sunlight is reflected by any plane mirror unit. The silicon wafer is illuminated surface.

The solar light receiver comprises a solar silicon wafer and a light superimposing reflecting device; the light superimposing reflecting device is formed by coaxially stacking three layers of light superimposing mirrors, and the first layer of light superimposing mirrors is composed of 8 The trapezoidal plane mirror unit is continuously arranged in an eight-turn structure, and each trapezoidal plane mirror unit is arranged in a row with a plane mirror unit X of the second layer of light superimposing mirror and the third layer of light superimposing mirror The planar mirror unit group, the adjacent two columns of reflective unit groups are provided with a plane mirror unit Y on the corresponding mirror layer, wherein the plane mirror unit X is rectangular, the plane mirror unit Y is trapezoidal or triangular, and each layer of light is superimposed. The mirror follows the stacking sequence from inside to outside, the angle between the plane mirror unit and the center line of the light superimposing mirror (3 is gradually reduced; the solar silicon wafer is suspended upside down, and the illuminated surface faces the light superimposing reflector, the sun The light reflected through any plane mirror unit is located on the illuminated surface of the solar silicon wafer.

The solar receiver further includes a heat-dissipating protection device fixed on the back surface of the solar silicon wafer; the heat-dissipating protection device includes a heat-insulating parasol, a small fan group, and a heat sink group from top to bottom. The installation sequence is arranged, and the adjacent components are separated by a certain gap.

The solar receiver further includes a mounting bracket, and the mounting bracket is provided with a load-bearing arm at a corresponding position of each column of the mirror group, and the adjacent load-bearing arms are pulled and positioned by a rigid material.

The swinging device is provided with an east-west worm gear swinging device and a corresponding east-west balance weighting device, and the east-west direction worm wheel swinging device can control the light-stacking reflecting device to swing in the east-west direction; the east-west direction balancing hammer is disposed in the solar light receiver Up, parallel or nearly parallel to the central axis of the light-stacking reflecting device, at or near the center axis of the pendulum axis of the swinging device in the east-west direction, and the light-stacking reflecting device is disposed on both sides of the swing axis of the east-west swinging device to balance The weight of the sun receiver when tracking the east-west direction.

The swing device is provided with a north-south direction worm gear swinging device for controlling the sun light receiver to swing in a north-south direction, wherein the north-south direction balance hammer is perpendicular or nearly perpendicular to the north-south direction swinging device swing axis, and is perpendicular or nearly perpendicular to the east-west direction. The swing shaft of the worm gear swinging device is located on a straight line, and is disposed on both sides of the swing shaft of the swing device in the north-south direction with the solar light receiver. The balance hammer is used to balance the weight of the solar receiver when tracking the north and south.

The counterweight is provided with a regulating device for controlling the counterweight to be close to or away from the solar receiver.

The material of the counterweight may be a cement block or a metal piece.

The above technical solutions are beneficial in that:

• The mirror units of the light-stacked reflection device are arranged in a ring shape to enable sunlight to be projected on the same solar silicon wafer when reflected by each mirror unit, which is sufficient for the solar wafer.

• Since the reflection units of the light superimposing reflection device are arranged in a gossip shape, 8+8 mirrors can be arranged in a ring-shaped range. Therefore, the five-layer structure can be used for 64 mirrors, and if it is 6 layers, Plus 16 mirrors. As long as the heat of the silicon wafer can be controlled, the efficiency of the silicon wafer can be maximized.

• This stacking device achieves 8-10 times photovoltaic power generation in a circular concentration range effectiveness. The finished equipment has achieved mass production of the whole machine, and can be disassembled for transportation and installation. It has realized the ability to quickly provide equipment for solar power grid-connected power generation, which can reduce costs and realize the desire of green lighting in the world as soon as possible.

• The mirror unit of the light superimposing reflector is arranged in a row, which can be controlled to prevent the mirror unit from being projected on the silicon wafer when part of the sunlight is reflected in the lateral direction; the mirror unit is arranged in a layer, so that the mirror can be controlled. The unit cannot be projected on the silicon wafer when there is part of the sunlight reflected in the longitudinal direction; the mirror unit is disposed between the adjacent two columns to make full use of the sunlight projected in the light superimposing and reflecting device.

• A certain gap is maintained between the mirror unit groups of each column of the light superimposing reflector, which can reduce the wind resistance, effectively reduce the wind resistance, and reduce damage to the equipment caused by strong wind attacks.

• The use of a rigid material to pull the load-bearing arm to form a mesh structure not only effectively strengthens the load-bearing arm and provides positioning, but also reduces the weight of the light-mounted reflector mounting bracket.

• The material of the flat mirror unit can be cheap plastic plating material, stainless steel plate, mirror material, etc., which greatly reduces the manufacturing cost and facilitates the market promotion;

• The solar silicon wafer is illuminated face down and equipped with a heat shield device to achieve timely heat dissipation and to prevent rainwater erosion and dust, bird droppings and other contaminants from accumulating on the illuminated surface.

• Since the present invention introduces a counterweight, a small force is applied to the light superimposing and reflecting device to achieve pivoting around the fulcrum or the axis, thereby eliminating the large torque when the light superimposing and reflecting device is repeatedly activated and braked, that is, the swinging mechanism Each transmission gear does not have to bear the load of the light superimposing reflector. It only needs to overcome the damping between the shafts to ensure that the gears are not easily damaged (assuming that the damping is one kilogram of force, the instantaneous starting and braking force is 100 times, then The power required by our transmission is only 101Kg. It is easy to drive. Therefore, not only the gear is not easily damaged and the power consumption is saved).

• The present invention utilizes a worm gear to drive the solar tracking device to rotate, due to the worm gear in the worm gearbox The pan can not be reversely rotated, so that the sun tracking device can form a self-locking when it encounters a typhoon.

• Since the light superimposing and reflecting device of the present invention can oscillate from east to west and north and south, it can track sunlight from longitude and latitude, so that the sunlight can be automatically tracked according to the different positions of the device and the changing seasons of the four seasons.

The invention will now be further described with reference to the drawings and specific embodiments.

DRAWINGS

Figure 1 is a perspective view of Embodiment 1;

Figure 2 is a perspective view of Embodiment 3;

Figure 3 is a front view of Embodiment 1;

4 is a perspective view of the three-layer light superimposing reflection device of Embodiment 1;

Figure 5 is a schematic view of a column of reflective unit groups;

6 is a schematic diagram of reflection of any planar mirror unit of Embodiment 1;

7 is a schematic diagram of light reflection of a multilayer light superimposing mirror of Embodiment 1;

8 is a schematic view showing the installation of the plane mirror unit of Embodiment 1;

9 is a perspective view of a five-layer light superimposed reflection of Embodiment 2;

Figure 10 is a perspective view of a swinging device with a north-south counterweight;

Figure 11 is a cross-sectional view of the swinging device;

Figure 12 is a perspective view of the heat sink;

Figure 13 is a perspective view of the implementation 1, 3 .

DETAILED DESCRIPTION OF THE INVENTION Example 1

As shown in Figures 1, 3, 5, 7, and 13, a Taiji gossip photovoltaic power generation device with a counterweight, mainly comprising a solar receiver 1, a solar tracking device, a cement seat 6 and a support frame 2; The solar receiver 1 includes a solar silicon wafer and a light superimposing receiving device; The superimposed reflecting means is coaxially superposed by the light superimposing mirror 11 to form a light superimposing mirror group 12, 13 which is gradually enlarged by angles (3 < β 1 < β 2; the first layer of light superimposing mirror 11 is reflected by 8 trapezoidal planes The mirror units are successively arranged in an eight-pronged structure, and each of the trapezoidal planar mirror units 111 is arranged in a row plane with a planar mirror unit X of the second layer of light superimposing mirrors 12 and the third layer of light superimposing mirrors 13 Mirror unit group Γ , two adjacent columns of reflective unit groups 设置 a planar mirror unit Υ is disposed on the corresponding mirror layer, wherein the plane mirror unit X is rectangular, and the plane mirror unit Υ is trapezoidal; the solar silicon The wafer is suspended in an inverted manner, and the illuminated surface faces the light-stacking reflecting device 1. The reflected light of the sunlight passing through any of the plane mirror units is located on the illuminated surface of the solar silicon wafer.

As shown in FIG. 8, the solar receiver 1 further includes a mounting bracket 7, and the mounting bracket 7 is provided with a load-bearing arm 71 at a corresponding position of each column of the mirror group, and is used between adjacent load-bearing arms. The rigid material 72 is pulled and positioned to form a mesh structure, and the planar mirror units can be placed on the corresponding grid with a certain gap.

As shown in FIG. 1 , 2 , and 12 , the solar receiver 1 further includes a heat dissipation protection device 3 fixed on the back surface of the solar silicon wafer, and the heat dissipation protection device 3 includes a heat insulating parasol 33 and a small fan group. 31 and the heat sink group 32 are arranged in the order of installation from top to bottom, and the adjacent components are separated by a certain gap.

As shown in FIGS. 1, 2, 11, and 13, the solar tracking device is provided with an east-west worm gear swinging device 421 for controlling the light-stacking reflecting device 1 to swing in the east-west direction; and the east-west direction balancing hammer 411 is disposed in the sunlight. The pendulum shaft center line L of the receiver 1 is parallel or nearly parallel to the central axis of the solar receiver, located at or close to the east-west direction swinging device 421, and is disposed in the east-west direction swinging device 421 with the solar receiver 1 Both sides of the shaft balance the weight of the solar receiver 1 when tracking the east-west direction.

The sun tracking device further includes a north-south direction worm gear swinging device 422 for controlling the solar receiver 1 to swing in a north-south direction, and the north-south direction balancing hammer 412 is disposed on the north-south direction worm gear swinging device 422, both in the north-south direction. The swinging device 422 swing axis D and the east-west swinging device 421 are perpendicular to the swing axis L, and are disposed on the two sides of the swing axis D of the north-south swinging device 422 with the solar receiver 1 to balance the sunlight receiving during the north-south tracking. The weight of the device 1.

The material of the north-south counterweight 412 or the east-balanced hammer 411 may be a cement block or a metal piece.

The north-south direction 412 of the counterweight is provided with a regulating device 43 for controlling the north-south counterweight 412 to be close to or away from the solar receiver 1. The north-south direction 411 of the counterweight is provided with a regulating device 44 for controlling the north-south counterweight 411 to be close to or away from the solar receiver 1.

Example 2:

As shown in FIG. 9 and FIG. 13 , the light-stacking reflection device of Embodiment 1 may further be a ring-shaped structure in which five layers of light-supplied mirrors are coaxially stacked, and the light-supplied mirrors are stacked from bottom to top. In the order, the angle between the plane mirror unit and the center line of the light superimposing mirror is gradually increased, and the first layer of the light superimposing mirror is successively arranged into an eight-turn structure by eight trapezoidal plane mirror units, each trapezoidal plane. The mirror unit is corresponding to a plane mirror unit X of the second layer of light superimposing mirrors to the last layer of light superimposing mirrors, and is arranged side by side into a row of plane mirror unit groups, and the adjacent two columns of reflecting unit groups are from the third layer. A plane mirror unit Y is disposed on the corresponding mirror layer, the plane mirror unit X is rectangular, the plane mirror unit Y corresponding to the third layer is trapezoidal, and the fourth layer and the fourth layer are rectangular.

Example 3:

As shown in FIG. 13 , the tracking device in Embodiment 1 is also applicable to a flat type solar energy receiving device, that is, the light superimposing and reflecting device is a flat solar chip 9 , and the solar photovoltaic power generation system directly receiving the solar panel does not need to cool down. .

The tracking device of the present invention is also applicable to other solar energy receiving devices such as: a reflecting device composed of five layers of coaxially stacked cones.

The focus of the invention is on:

As shown in FIG. 6, when the sunlight of 81 to 82 is reflected by the plane mirror unit and projected on the solar wafer, the blank A may appear in the lateral direction or the longitudinal direction. For this reason, the present invention separately divides the plane mirror unit by column. Overcoming the lateral blank, the vertical distribution is overcome according to the layer distribution, so that the reflection line of the sunlight passing through each plane mirror unit is located on the illuminated surface of the solar wafer to increase the solar radiation intensity received by the solar silicon wafer, and the solar silicon is improved. Wafer utilization.

Solar Light Tracking Device: Introducing a counterweight, using the principle of balance, to obtain an overall force balance at the point of force, the focus of the present invention is to overcome the damping of the bracket and not the weight of the bracket itself. Assuming a damping of one kilogram of force, the instantaneous start-up and braking require 100 times the force, then our transmission requires only 101 kg. Driving it is a breeze. Therefore, it is possible to obtain the operation of the tracking gear of the bracket with a flexible force, which not only has no damage to the gear but also saves power consumption. The invention is designed for a solar silicon photovoltaic power plant. The design direction is independent and stand-alone. Quick installation, group machine assembly, inverter integration. It can be disassembled and packed for convenient transportation and installation.

Single units can be used for large, medium and small photovoltaic power stations, building roofs, community gardens, roads, bridges, stations, docks, parks, military outposts, yurts, etc.

Claims

Request

1. A Taiji gossip photovoltaic power generation device with a counterweight, comprising: a solar receiver and an all-weather automatic day tracking device; wherein the all-weather automatic day tracking device is mainly composed of a balance hammer and a swing device. The balance hammer includes an east-west balance hammer or a north-south balance hammer or a combination of the two.

2. A Taiji gossip photovoltaic power generation unit with a counterweight according to claim 1, wherein: said solar light receiver is a flat-plate solar silicon wafer that directly receives sunlight.

3. The taiji gossip photovoltaic power generation apparatus with a counterweight hammer according to claim 1, wherein: said solar light receiver comprises a solar silicon wafer and a light superimposing reflecting device; said light The superimposed reflective device consists of more than one layer of coaxially stacked cone mirror sets; the solar silicon wafer is disposed within the light superimposition range of each layer of pyramid mirrors.

4. A Taiji gossip photovoltaic power generation apparatus with a counterweight according to claim 1, wherein: said solar receiver comprises a solar silicon wafer and a light superimposing reflecting device; said light The superimposed reflection device is formed by stacking five or more layers of light superimposing mirrors coaxially, and the first layer of light superimposing mirrors is successively arranged into an eight-pronged structure by eight trapezoidal plane mirror units, each trapezoidal The plane mirror unit and the second layer of the light superimposing mirror are corresponding to a plane mirror unit X of the last layer of the light superimposing mirror, and are arranged side by side into a row of plane mirror unit groups, and the adjacent two columns of reflecting unit groups from the third layer A plane mirror unit Y is disposed on the corresponding mirror layer, the plane mirror unit X is rectangular, the plane mirror unit Y corresponding to the third layer is trapezoidal, and the fourth layer and the fourth layer are rectangular; The stacking order of the layered light superimposing mirrors is gradually reduced from the inside to the outside, and the angle β between the plane mirror unit and the center line of the light superimposing mirror is gradually reduced; The silicon wafer is suspended in an inverted manner, and the illuminated surface faces the light superimposing reflection device, and the reflected light of the sunlight passing through any plane mirror unit is located on the illuminated surface of the solar silicon wafer.

5. The taiji gossip photovoltaic power generation apparatus with a counterweight hammer according to claim 1, wherein: said solar light receiver comprises a solar silicon wafer and a light superimposing reflecting device; said light The superimposed reflection device is formed by coaxially stacking three layers of light superimposing mirrors, and the first layer of light superimposing mirrors are successively arranged into an eight-turn structure by eight trapezoidal plane mirror units, each trapezoidal plane mirror unit and A planar mirror unit X of the second layer of light superimposing mirrors and a third layer of light superimposing mirrors are arranged side by side into a row of plane mirror unit groups, and adjacent two columns of array elements are provided with a plane reflection on the corresponding mirror layer. The mirror unit Y, wherein the plane mirror unit X is a rectangle, the plane mirror unit Y is a trapezoid or a triangle, and the layers of the light superimposing mirrors are arranged in a stacking manner from the inside to the outside, and the plane mirror unit and the center line of the light superimposing mirror are The angle β is gradually reduced; the solar silicon wafer is suspended upside down, and the illuminated surface is directed toward the light superimposing reflection device, and the sunlight is reflected by any plane mirror unit The rays are all located on the illuminated surface of the solar silicon wafer.

6. The taiji gossip photovoltaic power generation device with a counterweight according to claim 3, 4, 5, wherein: the solar receiver further comprises a heat radiation protection device fixed on the solar silicon wafer. The heat-dissipating protection device comprises a heat-insulating parasol, a small fan group, and a heat sink group arranged in a top-to-bottom installation sequence, and the adjacent components are separated by a certain gap by a positioning frame.

7. The galvanic photovoltaic power generation device with a counterweight according to claim 3, 4, 5, wherein: the solar receiver further comprises a mounting bracket, and the mounting bracket is A bearing arm is arranged at a corresponding position of each column of the mirror group, and the adjacent load-bearing arms are pulled and positioned by a rigid material.

,

8. A Tai Chi gossip with a counterweight as claimed in claims 1, 2, 3, 4, and 5. Photovoltaic power generation device, characterized in that: the swinging device is provided with an east-west worm gear swinging device and a corresponding east-west direction balancing hammer, and the east-west direction worm gear swinging device can control the light-stacking reflecting device to swing in the east-west direction; The direction flat H is disposed on the sun receiver, parallel or nearly parallel to the central axis of the light superimposing reflecting device, at or near the center axis of the pendulum axis of the swinging device in the east-west direction, and is disposed in the east-west direction swinging device with the light superimposing reflecting device On both sides of the pendulum axis, the weight of the solar receiver is tracked by the flat #f on the east-west direction.

9. The taiji gossip photovoltaic power generation device with a counterweight according to claim 1, 2, 3, 4, 5, wherein: the oscillating device is provided with a north-south worm gear swinging device for controlling the sun. The light receiver swings in a north-south direction, and the north-south direction balance hammer is perpendicular or nearly perpendicular to the north-south direction swinging device swing axis, and is perpendicular or close to a line perpendicular to the swing axis of the east-west worm gear swinging device, and is received by the sunlight. The device is arranged on both sides of the swing shaft of the swing device in the north-south direction, and the balance hammer is used to balance the weight of the solar receiver when tracking the north and south.

10. A Taiji gossip photovoltaic power generation unit with a counterweight according to claim 1, wherein: said counterweight is provided with a regulating device for controlling the counterweight to approach or away from the solar receiver.