CN201141710Y - Slewing support device for array solar photothermal power generation collector - Google Patents

Abstract

An array type solar thermal power generation collector rotary support device, the solar collector is fixedly connected to one end of the swing arm, the middle part of the swing arm is hinged to the boom frame, and the other end of the swing arm is hinged to the luffing drive mechanism; the bearing support wheel is It is supported on the bearing support and evenly distributed on the frame under the supporting track. On the outside of the supporting track, there are anti-overturning rollers on the lower wing of the supporting track. The axle frame of the anti-overturning roller is connected with the anti-overturning roller support. , the lower end of the anti-overturning roller support is fixed to the bearing support; a positioning cylinder is arranged in the middle under the rotary platform, and a ring of positioning rollers is arranged close to the periphery of the positioning cylinder, and the roller frame supporting the positioning roller is connected with the positioning seat, and the positioning seat is fixed on A track positioning mechanism is formed on the frame. The utility model can realize double-angle adjustment of the solar energy collector, and can collect solar heat energy at an optimal angle.

Description

Slewing support device for array solar photothermal power generation collector

(1) Technical field

The utility model relates to a rotary support device, in particular to a solar tracking rotary support device which can adjust the angle of a solar collector according to sunlight.

(2) Background technology

At present, the shortage of fuel energy has become a worldwide problem. It is predicted that the world's population will increase to 8.9 billion in 2050, and the energy demand at that time will be three times that of the current one, while renewable energy will account for 50%. The supply of renewable energy in 2050 will be twice the current global energy consumption. In China's energy consumption, coal can only provide 30-50% of the total power consumption, and the remaining 50-70% will rely on oil, natural gas, hydropower, nuclear power, biomass energy and other renewable energy sources. Since China's own oil and gas resources, nuclear power and hydropower resources are very limited, direct mass burning of biomass energy will also be gradually phased out. Therefore, solar energy, as a green, pollution-free and low-cost permanent energy, is not only applicable to every building It is more suitable for the vast mountainous area, wasteland and frontier defense with inconvenient transportation in my country. Solar thermal power generation is a completely zero-emission clean energy, and it is also a practical energy that is close to large-scale applications. If the government and the industry can attach importance to solar photovoltaic power generation as they do to nuclear energy, there is hope that in the near future, China will Gradually realize the beautiful ideal of "sunshine everywhere, electricity everywhere".

Since the orbit of the earth around the sun is an ellipse, as far as the northern hemisphere is concerned, the earth is in the perihelion section of the circular orbit in winter, close to the sun; in summer, the earth is in the aphelion section of the circular orbit, far away from the sun, and in winter it is The sun is closer but colder than in summer. The reason is that in winter, the sun slants on the earth. In summer, the areas south of the Tropic of Cancer have direct sunlight. The heat energy is much. However, the slewing support device of the current array solar power generation device only follows the sun in a single coordinate direction and can only adjust the longitude angle of the solar collector, but not the latitude angle of the solar collector, so it cannot guarantee the maximum solar energy acquisition. Moreover, the traditional solar thermal power generation device only stays in the scope of a single small-scale, and it is only a single small-scale power generation.

(3) Contents of utility model

The purpose of this utility model is to provide a rotary support device for an array type solar thermal power generation collector. To solve the problem that the traditional rotary support device only follows the sun in a single coordinate direction and can only adjust the longitude angle of the solar collector, but cannot adjust the solar energy. The latitude angle of the collector cannot obtain the technical problem of solar energy to the greatest extent; and solve the problem that the traditional solar thermal power generation device still only stays in the range of a single small scale.

In order to achieve the above object, the utility model adopts the following technical solutions:

An array type solar thermal power generation collector rotary support device, a solar collector 1 is arranged on the top of the rotary platform 2, a circle of support rails 10 and a circle of friction transmission guide rails 15 are connected to the bottom of the rotary platform 2, and the support rails 10 are supported by supporting wheels 5 bearings, the friction transmission guide rail 15 is connected with the driving mechanism 4, and the driving mechanism 4 includes a frequency conversion speed regulating motor 4.1, a speed reducer 4.2, a main friction wheel 4.3 and an auxiliary friction wheel 4.4, and is characterized in that:

The solar collector 1 is fixedly connected with one end of the swing arm 8 , the middle part of the swing arm 8 is hinged with the jib frame 7 , and the other end of the swing arm 8 is hinged with the push rod of the luffing drive mechanism 9 .

The bearing support wheel 5 is supported on the bearing support 6, and is evenly distributed on the frame 11 below the support track 10 along the track of the support track 10. On the outside of the support track 10, an anti-overturning device is placed on the support track 10 lower wing plate. Roller 12, the axle frame of anti-overturning roller 12 is connected with anti-overturning roller support 13, and the lower end of anti-overturning roller support 13 is fixed with bearing support 6.

A positioning cylinder 3.1 is arranged in the middle under the rotary platform 2, and a circle of positioning rollers 3.2 is arranged close to the periphery of the positioning cylinder 3.1. The roller frame 3.3 supporting the positioning rollers is connected with the positioning seat 3.4, and the positioning seat 3.4 is fixed on the frame 11 by bolts 3.5. , forming a track positioning mechanism 3 .

The above-mentioned solar collectors are evenly distributed on the rotary platform in an array.

The push rod of the above-mentioned luffing drive mechanism 9 is hinged with the swing arms 8 of two or more solar collectors.

The above-mentioned revolving platform 2 is a grid-shaped steel truss welded by section steel, and radial beams and table tops are sequentially connected on the steel truss.

Above-mentioned frame 11 can be made up of elevated pillar 11.1 and annular support plate 11.2, and the main truss of annular support plate 11.2 is radial.

As a further preferred technical solution of the utility model: the two sides of the above-mentioned friction transmission guide rail 15 are provided with an outer dust-proof ring 16 and an inner dust-proof ring 18, and the inner dust-proof ring 18 is supported by the legs 14, and there is an anti-dust ring on the periphery of the driving mechanism 4. Dust cover 17.

Compared with the prior art, the utility model has the following characteristics and beneficial effects:

1. The utility model puts the array of solar collectors on the rotary support mechanism, drives the solar collectors with the rotary platform, and rotates around the center of the rotary platform itself at an angular speed of 0.5 revolutions per day, that is, it rotates synchronously with the rotation of the earth. At the same time, Utilize the collector arm frame to adjust the angle of longitude, utilize the collector luffing mechanism to push and pull the swing arm of the solar collector to adjust the latitude angle, the collector luffing mechanism 9 of the solar collector can adjust the angle of the solar collector along with the latitude angle of the sun, so that the solar energy The latitude angle of the collector is the same as the inclination of the sun relative to the horizon. In this way, not only the longitude angle of the solar collector is adjusted, but also the latitude angle is adjusted, so that the rotation latitude and longitude angle of the solar collector is synchronized with the earth's rotation and the angular speed of the sun, and it is always facing the sun from sunrise to sunset, always following the direction of the sun Direct sunlight, just like the sunflower disc turning its neck to chase the sun, achieves the effect of two-way chasing the sun, and obtains the solar heat energy to the maximum extent. Although the utility model consumes electricity to adjust the angle, for example, the array type utility model with a diameter of 45 meters has a total weight of 120 tons of solar collectors and rotary platforms, and only needs to be driven by two 0.75 kilowatt motors, and the increased photothermal power generation capacity can reach More than 22 times that of the motor, so the utility model has greatly improved the photothermal power generation capacity of the solar collector, and the solar energy must be obtained to the greatest extent on the area of the existing solar photothermal collector, and the photothermal efficiency has been improved.

2. The rotary platform and the solar collector form a rotary body, and the large reduction ratio mechanical transmission device is driven by the motor and its friction wheel transmission device, and the rotary body is driven to rotate. From the high speed to the extremely low speed of 0.5 revolutions per day of the solar thermal collector, the two-stage planetary pinwheel cycloidal reducer is connected in series, and finally the overall deceleration is completed by the friction wheel transmission. The motor drives the main friction wheel to rotate through the reducer. By adjusting the distance between the main friction wheel and the driven friction wheel, the main and slave friction wheels clamp the friction transmission guide rail, and the friction guide rail is integrated with the circular structure of the platform to drive the platform to rotate. That is to form a friction transmission system. The friction wheel automatic compensation mechanism and the friction wheel synchronous follow-up mechanism can make the friction wheel clamp the friction guide rail at any time, and can move synchronously with the friction guide rail to ensure that the friction force at each point on the circumference is equal, and there is no loss of rotation or slippage. Eliminate daily adjustments and run smoothly.

3. The utility model is equipped with a track positioning mechanism, which can prevent the plane displacement of the rotary platform during the rotation process, and can also meet the requirements of energy transmission.

4. The utility model also considers the seismic fortification intensity, wind load and snow load, and an anti-overturning mechanism is provided on one side of the track support mechanism, which can prevent the solar collector and the slewing platform from overturning. Therefore, the utility model enables the solar photothermal collector to realize array-type, large-scale solar tracking heat collection and power generation, and greatly improves the heat collection efficiency of the solar collector 1 .

(4) Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the first embodiment of the connection between the solar collector and the slewing platform.

Fig. 3 is an enlarged schematic diagram of position I in Fig. 1 .

Fig. 4 is a schematic structural view of the track positioning mechanism.

FIG. 5 is a schematic cross-sectional view along line A-A of FIG. 4 .

Fig. 6 is a schematic diagram of the connection between the friction transmission guide rail and the driving mechanism.

Fig. 7 is an enlarged schematic view of II in Fig. 1 .

Fig. 8 is a schematic diagram of a rack.

FIG. 9 is a top view of FIG. 8 .

Fig. 10 is a schematic diagram of the second embodiment of the connection between the solar collector and the slewing platform.

Reference signs: 1-solar collector, 2-revolving platform, 3-track positioning mechanism, 3.1-positioning cylinder, 3.2-positioning roller, 3.3-roller frame, 3.4-positioning seat, 3.5-bolt, 4-driving mechanism, 4.1-Frequency variable speed motor, 4.2-Reducer, 4.3-Main friction wheel, 4.4-Auxiliary friction wheel, 5-Load support wheel, 6-Bearing support, 7-arm frame, 8-Swing arm, 9-Luffing Driving mechanism, 10-support rail, 11-frame, 11.1-elevated pillar, 11.2-ring support plate, 12-anti-overturning roller, 13-anti-overturning roller support, 14-leg, 15-friction transmission guide rail, 16 -outer dust ring, 17-dust cover, 18-inner dust ring.

(5) Specific implementation methods

Referring to the embodiment shown in FIG. 1 , the array type solar thermal power generation collector slewing support device, the solar collectors 1 are arranged in an array on the slewing platform 2 . The rotary platform 2 is driven to rotate by a frequency conversion motor and a friction wheel transmission mechanism. A circle of support rails 10 and a circle of friction transmission guide rails 15 are connected below the rotary platform 2 , the support rails 10 are supported by the bearing support wheels 5 , and the friction transmission guide rails 15 are connected with the drive mechanism 4 . The slewing platform 2 is a grid-shaped steel truss welded by section steel, and the radial beams and the table are sequentially connected on the steel truss.

Referring to Fig. 8 and Fig. 9, the frame 11 is composed of an elevated pillar 11.1 and an annular support plate 11.2, and the main truss of the annular support plate 11.2 is radial.

Referring to FIG. 2 , the solar collector 1 is fixedly connected to one end of the swing arm 8 , the middle part of the swing arm 8 is hinged to the arm frame 7 , and the other end of the swing arm 8 is hinged to the push rod of the luffing drive mechanism 9 . The luffing drive mechanism can be used in series, or the number can be reduced. The push rod of the above-mentioned luffing drive mechanism 9 can be hinged with the swing arms 8 of two or more solar collectors, and the position of the hinge point can be set in the triangular arm frame. Referring to Figure 10, the position of the hinge point can also be set in the triangle arm rack top. The slewing platform is driven by the frequency conversion speed regulating motor and the friction wheel transmission mechanism to rotate around the system positioning axis at an angular velocity of 0.5 revolutions per day, that is, it is synchronized with the rotation of the earth. The variable amplitude drive mechanism 9 can adjust the solar collector according to the latitude angle of the sun The angle of 1 makes the solar collector 1 always collect heat to the sun.

Referring to Fig. 3, the bearing support wheel 5 is supported on the bearing support 6, and is evenly distributed on the frame 11 below the support track 10 along the track of the support track 10, on the outer side of the support track 10, above the lower wing of the support track 10 Anti-overturning roller 12 is installed, and the axle frame of anti-overturning roller 12 is connected with anti-overturning roller support 13, and anti-overturning roller support 13 is inverted L shape, and its lower end is fixed with bearing support 6, and bearing support 6 is height adjustable Adjust the support.

Referring to Figure 4-5, in order to ensure that the rotary platform can rotate around the axis accurately, a positioning mechanism is provided at the axis to make the center deviation of the rotary platform less than 5mm. A positioning cylinder 3.1 is arranged in the middle under the rotary platform 2, and a circle of positioning rollers 3.2 is arranged close to the periphery of the positioning cylinder 3.1. The roller frame 3.3 supporting the positioning rollers is connected with the positioning seat 3.4, and the positioning seat 3.4 is fixed on the frame 11 by bolts 3.5. , forming a track positioning mechanism 3, the height of the positioning seat 3.4 can be adjusted.

Referring to Fig. 6-7, the driving mechanism 4 drags the friction transmission guide rail to complete the rotation of the rotary platform. The driving mechanism 4 includes a frequency conversion speed regulating motor 4.1, a reducer 4.2, a main friction wheel 4.3, an auxiliary friction wheel 4.4, a friction wheel follower mechanism 4.5, a friction wheel clamping force automatic compensation mechanism 4.6 and an electrical control system. The frequency conversion speed regulating motor is used to drive the main friction wheel to rotate through the reducer, and the distance between the main friction wheel and the driven friction wheel is adjusted to make the main friction wheel and the driven friction wheel clamp the friction transmission guide rail. The friction wheel automatic compensation mechanism and the friction wheel synchronous follow-up mechanism can make the friction wheel clamp the friction guide rail at any time, and can move synchronously with the friction guide rail to ensure that the friction force at each point on the circumference is equal, and there is no loss of rotation or slippage. Eliminate daily adjustments and run smoothly. If a frequency-modulated motor with a synchronous rotation speed of 1450 to 500 rotations per minute is selected, the total reduction ratio is 20,000 to 30,000. The frequency converter controls the motor to run at a constant speed. Within the range of rotation speed, the platform speed can be changed by adjusting the frequency of the motor through the frequency converter. The speed regulation is even and smooth, and there is no out-of-control zone. Delayed start device, deceleration and slow stop device make the turntable accelerate and decelerate smoothly and without impact when starting and stopping. Adjust the frequency converter to change the speed of the rotary platform. The driving mechanism 4 includes a variable frequency speed regulating motor. The electrical control system of the driving mechanism is composed of the control cabinet placed in the main control room, the frequency conversion speed regulating motor installed on the main machine body, and the connecting wires. The control cabinet is composed of switches, voltmeters, contactors, phase failure protectors, time relays, frequency converters, overheat protectors, fuses, indicator lights, etc.

Since the array of solar thermal power generation devices is arranged on the rotary platform with a large diameter, the utility model takes into account the user's local earthquake fortification intensity, wind load and snow load. A dustproof mechanism is installed. The friction transmission guide rail 15 is composed of multi-section arc-shaped tracks, and an outer dust-proof ring 16 and an inner dust-proof ring 18 are placed on both sides thereof, and the inner dust-proof ring 18 is supported by the legs 14, and there is a dust-proof cover 17 on the periphery of the driving mechanism 4 , which is conducive to ensuring the normal operation and motion accuracy of the rotary platform.

Claims (6)

1. A rotary support device for an array solar photothermal power generation collector, a solar collector (1) is arranged on the rotary platform (2), and a circle of support rails (10) and a circle of friction transmission are connected under the rotary platform (2) Guide rail (15), support rail (10) is supported by bearing support wheel (5), and friction transmission guide rail (15) is connected with driving mechanism (4), and driving mechanism (4) comprises frequency conversion speed regulating motor (4.1), speed reducer ( 4.2), main friction wheel (4.3) and auxiliary friction wheel (4.4), are characterized in that: The solar collector (1) is fixedly connected to one end of the swing arm (8), the middle part of the swing arm (8) is hinged to the boom (7), and the other end of the swing arm (8) is connected to the pusher of the luffing drive mechanism (9). rod hinged; The bearing support wheel (5) is supported on the bearing support (6), and is evenly distributed on the frame (11) below the support track (10) along the track of the support track (10), the outside of the support track (10), on the support The anti-overturning roller (12) is placed on the lower wing plate of the track (10), and the shaft frame of the anti-overturning roller (12) is connected with the anti-overturning roller support (13), and the lower end of the anti-overturning roller support (13) is connected with the bearing support. Seat (6) is fixed; A positioning cylinder (3.1) is provided in the middle under the rotary platform (2), and a circle of positioning rollers (3.2) is provided close to the periphery of the positioning cylinder (3.1), and the roller frame (3.3) supporting the positioning rollers is connected with the positioning seat (3.4). The positioning seat (3.4) is fixed on the frame (11) by bolts (3.5) to form a track positioning mechanism (3). 2. The slewing support device for the array solar photothermal power generation collector according to claim 1, characterized in that: the solar collectors are evenly distributed in an array on the slewing platform. 3. The slewing support device of the array solar photothermal power generation collector according to claim 2, characterized in that: the push rod of the luffing drive mechanism and the swing arms (8) of two or more solar collectors hinged. 4. The slewing support device of the array type solar thermal power generation collector according to claim 1, 2 or 3, characterized in that: the slewing platform (2) is a grid-like steel truss welded by section steel, and the steel truss is above Connect radial beams and table tops sequentially. 5. The slewing support device of the array solar thermal power generation collector according to claim 4, characterized in that: the frame (11) is composed of an elevated pillar (11.1) and an annular support plate (11.2), and the annular support plate (11.2) The main truss is radial. 6. The slewing support device of the array type solar thermal power generation collector according to claim 5, characterized in that: outer dust-proof rings (16) and inner dust-proof rings are placed on both sides of the friction transmission guide rail (15) (18), the inner dust ring (18) is supported by the legs (14), and there is a dust cover (17) on the drive mechanism (4) periphery.

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