Omnidirectional tracking parabolic mirror thermal energy absorption system

Abstract

The present invention relates to the technical fields of clean heating and photothermal utilization. Disclosed is an omnidirectional tracking parabolic mirror thermal energy absorption system, comprising: a heat collecting reflector unit, an azimuth driving unit, an altitude driving unit, and a support unit, wherein the support unit is provided with a support frame, and the heat collecting reflector unit and the azimuth driving unit are arranged on the support frame; the altitude driving unit is arranged on the support unit and is used for driving the deflection of the angle of the support frame; the azimuth driving unit is arranged on the support frame and is used for driving the deflection of the angle of the heat collecting reflector unit; and the heat collecting reflector unit is used for reflecting sunlight to a vacuum heat collecting tube by means of a reflector, and the vacuum heat collecting tube is arranged on the support frame by means of a tube support. The present invention relates to the technical fields of clean heating and photothermal utilization. Disclosed is an omnidirectional tracking parabolic mirror thermal energy absorption system, comprising: a heat collecting reflector unit, an azimuth driving unit, an altitude driving unit, and a support unit, wherein the support unit is provided with a support frame, and the heat collecting reflector unit and the azimuth driving unit are arranged on the support frame; the altitude driving unit is arranged on the support unit and is used for driving the deflection of the angle of the support frame; the azimuth driving unit is arranged on the support frame and is used for driving the deflection of the angle of the heat collecting reflector unit; and the heat collecting reflector unit is used for reflecting sunlight to a vacuum heat collecting tube by means of a reflector, and the vacuum heat collecting tube is arranged on the support frame by means of a tube support.

Description

All-around tracking parabolic mirror heat energy absorption system TECHNICAL FIELD

[0001] The present application relates to the field of clean heating and photo-thermal utilization technology, and particularly relates to an all-around tracking parabolic mirror heat energy absorption system. BACKGROUND

[0002] With the increasing efforts of the state on environmental governance, clean heating and heat utilization, whether coal-to-electricity or coal-to-gas, are not clean energy, and solar energy is the cleanest and least polluting energy. The traditional solar water heater has too low heat collection efficiency, and the butterfly type solar collector has high efficiency, but the butterfly type reflector is a hyperbolic reflector with high manufacturing cost, and the trough type reflector is a single curved surface with much lower manufacturing cost, so the application of the trough type solar energy is more and more, which is the best choice for residents to heat and utilize heat.

[0003] The trough type solar heating technology uses a trough type condenser to focus dispersed sunlight onto a vacuum collector to generate high temperature. A solar automatic tracking control system is used to track the motion trajectory of the sun at all times, and the high temperature generated by the focal point is used to heat the working medium (such as a heat transfer medium) in the vacuum collector to 100-300 degrees Celsius. The heat transfer medium is sent into a heat storage water tank by a medium circulating pump to exchange heat with the water inside, and the water temperature is raised by circulating heating. The system automatically controls the trough type reflector and the auxiliary electric heater to coordinate operation to maintain the water temperature at the set requirement by monitoring the inlet and outlet temperature of the heat exchange coil in the heat storage water tank and the change of light intensity.

[0004] In order to fully utilize sunlight, the traditional trough type solar device is generally provided with multiple units, and the more trough type reflector units, the less the edge loss of sunlight. The utilization rate of solar light is higher, which causes the length to be too large, and the entire device can only rotate around the altitude angle of the sun, cannot rotate around the azimuth angle of the sun, and the single-axis tracking causes the cosine loss of the reflector area, and there is edge loss of the vacuum glass tube in the morning and afternoon. The smaller the solar altitude angle, the greater the edge loss, and the sunlight cannot be fully utilized.

[0005] Therefore, the present application provides an all-around tracking parabolic mirror heat energy absorption system which can fully utilize the reflector area, eliminate the cosine loss and the edge loss of the vacuum glass tube, and improve the heat collection efficiency of the vacuum heat collection tube.

[0006] SUMMARY

[0007] The present application aims to solve the defects in the prior art and provides an all-around tracking parabolic mirror heat energy absorption system.

[0008] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0009] A kind of all azimuth tracking parabolic mirror thermal energy absorption system, comprising:

[0010] Collecting mirror unit, azimuth angle drive unit, height angle drive unit and support unit,

[0011] Support frame is provided on the support unit, and the collecting mirror unit and the azimuth angle drive unit are arranged on the support frame;

[0012] The height angle drive unit is arranged on the support unit, for driving the deflection of the angle of support frame;

[0013] The azimuth angle drive unit is arranged on the support frame, for driving the deflection of the angle of collecting mirror unit;

[0014] The collecting mirror unit is used to reflect sunlight through the mirror to the vacuum heat collecting tube, and the vacuum heat collecting tube is arranged on the support frame by the pipe frame.

[0015] Further, the collecting mirror includes a mirror and a vacuum heat collecting tube, the mirror is arranged correspondingly with the vacuum heat collecting tube, the mirror is provided with multiple groups, and the mirrors in the same group are arranged on the same concentric shaft, and the passive wheel cooperating with the direction angle drive unit is arranged on the concentric shaft.

[0016] Further, the passive wheel is arranged at the middle position of the concentric shaft, and the side rollers are fixedly connected to the two sides of the concentric shaft, the side rollers are arranged on the arc-shaped support seat, and the arc-shaped support seat is fixedly connected to the support frame.

[0017] Further, the arc-shaped support seat includes a plurality of support pieces, the top of the support piece is arc-shaped and matched with the side roller, the support pieces are spaced apart, and the support pieces are arranged in parallel and connected in sequence by the connecting rods.

[0018] Further, the azimuth angle drive unit includes a second drive motor, the support frame is provided with a mounting plate, the second drive motor is fixedly connected to the bottom of the mounting plate by a motor mounting seat, the output end of the second drive motor is provided with a driving wheel, the concentric shaft is provided with a passive wheel, and the driving wheel is in transmission connection with the passive wheel.

[0019] Further, the height angle drive unit includes a first motor, the first motor is fixedly connected to the column of the support unit, the output end of the first motor is provided with a screw rod, the screw rod is in threaded connection with the sliding seat, the sliding seat is arranged on the column in up-and-down sliding mode, the sliding seat is hingedly connected with the first end of the adjusting inclined beam, the second end of the adjusting inclined beam is hingedly connected to the hinged seat of the support frame, and the column is hingedly connected with the support frame.

[0020] Further, two groups of limiting sliding frames are fixedly connected to the column, and the two limiting sliding frames are symmetrically arranged on the two sides of the sliding seat.

[0021] Further, a threaded through hole is arranged on the sliding seat, the screw rod is arranged in the threaded through hole, a horizontal extension is arranged on the sliding seat, and a hinge seat is mounted at the end of the horizontal extension, and the first end of the adjusting inclined beam is hinged to the hinge seat.

[0022] Further, the support unit comprises a column, a support frame and a support framework, the bottom of the column is provided with a base, the cross-sectional area of the base is larger than that of the column, the top of the column is rotatably connected with the support frame, and the support frame is fixedly connected with the support framework. Advantages

[0023] Compared with the prior art, the application has the advantages that: through the arrangement of the application, a full-range tracking parabolic mirror thermal energy absorption system is provided, which can fully utilize the area of the reflector, eliminate the cosine loss and the edge loss of the vacuum glass tube, and improve the heat collection efficiency of the vacuum heat collecting tube.

[0024] Due to the change of the sun, the azimuth changes every day, and through the dual-axis tracking of the azimuth angle driving unit and the height angle driving unit, the sun can be tracked all day long when the sun is up, the perpendicular reflection of the large-area sunlight to the vacuum glass tube is ensured, and the utilization rate of solar energy is improved. The parallel arrangement of the heat collecting reflectors is beneficial to increasing the receiving area of the sunlight and reducing the overall height, and the wind resistance is enhanced without affecting the receiving area of the sunlight. BRIEF DESCRIPTION OF DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the application, and constitute a part of the specification, together with the embodiments of the application, to explain the application, and do not constitute a limitation on the application.

[0026] Fig. 1 is a schematic structural diagram of the full-range tracking parabolic mirror thermal energy absorption system.

[0027] Fig. 2 is a partial enlarged view of part A in Fig. 1.

[0028] Fig. 3 is a structural schematic diagram of the full-range tracking parabolic mirror thermal energy absorption system from another perspective.

[0029] In the drawings: 1, reflector; 2, vacuum heat collecting tube; 3, adjusting inclined beam; 4, limiting sliding frame; 5, screw rod; 6, first motor; 7, column; 8, second motor; 9, support frame; 10, second hinge seat; 11, side roller; 12, arc-shaped support seat. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0032] Referring to FIGS. 1-3, a full-range tracking parabolic mirror thermal energy absorption system includes a heat collecting reflector unit, an azimuth angle driving unit, an elevation angle driving unit and a support unit,

[0033] The support unit is provided with a support frame, and the heat collecting reflector unit and the azimuth angle driving unit are arranged on the support frame;

[0034] The elevation angle driving unit is arranged on the support unit and is used to drive the deflection of the angle of the support frame;

[0035] The azimuth angle driving unit is arranged on the support frame and is used to drive the deflection of the angle of the heat collecting reflector unit. By driving the parallel arrangement of the heat collecting reflector unit to rotate around the sun during the day, the sunlight is incident on the reflector 1;

[0036] The heat collecting reflector unit is used to reflect the sunlight through the reflector 1 to the vacuum heat collecting pipe 2. The vacuum heat collecting pipe 2 is arranged on the support frame through a pipe frame. By driving the parallel arrangement of the heat collecting reflector unit to rotate around the sun during the year, the sunlight is incident on the reflector 1;

[0037] The azimuth angle driving unit and the elevation angle driving unit drive the parallel arrangement of the heat collecting reflector unit to rotate around the azimuth angle of the sun. The elevation angle driving unit drives the parallel arrangement of the heat collecting reflector unit to rotate around the elevation angle of the sun. The double-axis tracking ensures that the sunlight is reflected vertically on the vacuum glass pipe through the reflector 1.

[0038] In other preferred embodiments, the heat collecting reflector 1 includes a reflector 1 and a vacuum heat collecting pipe 2. The reflector 1 is arranged correspondingly with the vacuum heat collecting pipe 2. The reflector 1 is arranged in multiple groups. The reflectors 1 in the same group are arranged on the same concentric shaft. The concentric shaft is provided with a passive wheel cooperating with the directional angle driving unit.

[0039] The vacuum heat collecting pipes 2 are connected in series, and are connected with the transition bend pipes, the hoses and the vertical pipes in sequence, the vacuum heat collecting pipes 2, the transition bend pipes, the hoses and the vertical pipes are provided with the heat conducting medium, the transition bend pipes and the hoses are exposed outside, and the vertical pipes are installed in the stand column 7 of the support unit.

[0040] Specifically, the passive wheel is arranged at the middle position of the concentric shaft, and the side rollers 11 are fixedly connected to the two sides of the concentric shaft, the side rollers 11 are arranged on the arc-shaped support seat 12, and the arc-shaped support seat 12 is fixedly connected to the support frame. The side rollers 11 and the arc-shaped support seat 12 support the two side positions of the concentric shaft, thereby increasing the stability of rotation of the concentric shaft.

[0041] Specifically, the arc-shaped support seat 12 comprises a plurality of support pieces, the top of each support piece is arc-shaped and matched with the side roller 11, the support pieces are spaced apart from each other, and the support pieces are arranged in parallel and connected in sequence by the connecting rods. By the arrangement of the structure, rainwater, sundries and the like can be prevented from entering the matching position of the support seat and the side roller 11, so as to prolong the service life of the arc-shaped support seat 12.

[0042] Specifically, the azimuth angle driving unit comprises a second driving motor, the support frame is provided with a mounting plate, the second driving motor is fixedly connected to the bottom of the mounting plate through a motor mounting seat, the output end of the second driving motor is provided with a driving wheel, the concentric shaft is provided with a passive wheel, and the driving wheel and the passive wheel are in transmission connection. The above transmission connection mode can be gear transmission, chain transmission or belt transmission.

[0043] In other preferred embodiments, the altitude angle driving unit comprises a first motor 6, the first motor 6 is fixedly connected to the stand column 7 of the support unit, the output end of the first motor 6 is provided with a screw rod 5, the screw rod 5 is threadedly connected with a sliding seat, the sliding seat is arranged on the stand column 7 and can slide up and down, the sliding seat is hingedly connected with the first end of the adjusting inclined beam 3, the second end of the adjusting inclined beam 3 is hingedly connected to the second hinge seat 10 of the support frame, and the stand column 7 is hingedly connected with the support frame. When the screw rod 5 rotates, the sliding seat can be driven to move up and down, thereby adjusting the angle of the adjusting inclined beam 3, so that the support frame is deflected to adapt to the change of the altitude angle of the sun.

[0044] Specifically, the stand column 7 is fixedly connected with two groups of limiting sliding frames 4, and the two limiting sliding frames 4 are symmetrically arranged on the two sides of the sliding seat. The limiting sliding frames 4 limit the travel track of the sliding seat, so that the sliding seat can only move in the height direction of the stand column 7.

[0045] Specifically, the sliding seat is provided with a threaded through hole, the screw rod 5 is arranged in the threaded through hole, the sliding seat is provided with a horizontal extension, and a first hinge seat is arranged at the end of the horizontal extension. The first end of the adjusting inclined beam 3 is hingedly connected with the first hinge seat.

[0046] In other preferred embodiments, the support unit comprises the column 7 and a support frame, the bottom of the column 7 is provided with a base, the cross-sectional area of the base is larger than that of the column 7, the top of the column 7 is rotationally connected with the support frame 9, the support frame 9 is triangular, and the top of the support frame 9 is fixedly connected with the support frame. Through the base, the stability of the column 7 after installation can be enhanced.

[0047] The application drives the parallelly arranged heat collecting reflector units to rotate around the azimuth angle of the sun by controlling the second motor 8 on the column 7, so that the sunlight is incident on the reflector 1 and then reflected to the vacuum glass tube by the reflector 1; the first motor 6 is controlled to drive the screw rod 5 to drive the sliding block to move up and down, and the azimuth angle driving unit is used to adjust the height, so that the sunlight is always incident on the reflector 1 perpendicularly and then reflected to the vacuum glass tube by the reflector 1 when the height of the sun changes; that is, the sunlight is reflected on the vacuum glass tube perpendicularly by the reflector 1 through the double-axis tracking.

[0048] The azimuth of the sun changes every day, and the azimuth angle driving unit and the height angle driving unit are used to track the sun to ensure that the sunlight is reflected on the vacuum glass tube perpendicularly when the sun is present, so that the utilization rate of the solar energy is improved.

[0049] The parallelly arranged heat collecting reflector units are beneficial to increase the receiving area of the sunlight and reduce the overall height, and the wind resistance is enhanced without affecting the receiving area of the sunlight.

[0050] The above is only the preferred embodiment of the application, but the protection scope of the application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. A omnidirectional tracking parabolic mirror thermal energy absorption system, characterized in that, include: The unit includes a heat-collecting reflector, an azimuth angle driving unit, an elevation angle driving unit, and a support unit. A support frame is provided on the support unit, and the heat collection reflector unit and the azimuth angle driving unit are provided on the support frame; The elevation angle driving unit is disposed on the support unit and is used to drive the angle deflection of the support frame; The azimuth angle driving unit is mounted on the support frame and is used to drive the angle deflection of the heat collection reflector unit. The solar collector reflector unit is used to reflect sunlight onto the vacuum solar collector tube through the reflector. The vacuum solar collector tube is mounted on the support frame via a tube rack.

2. The omnidirectional tracking parabolic mirror thermal energy absorption system according to claim 1, characterized in that, The heat collection reflector includes a reflector and a vacuum heat collection tube. The reflector and the vacuum heat collection tube are arranged correspondingly. There are multiple sets of reflectors. The reflectors in the same set are arranged on the same concentric axis. A passive wheel that cooperates with the directional angle drive unit is arranged on the concentric axis.

3. The omnidirectional tracking parabolic mirror thermal energy absorption system according to claim 2, characterized in that, The passive wheel is positioned at the center of the concentric shaft, and side rollers are fixedly connected to both sides of the concentric shaft. The side rollers are mounted on an arc-shaped support base, which is fixedly connected to the support frame.

4. The omnidirectional tracking parabolic mirror thermal energy absorption system according to claim 3, characterized in that, The arc-shaped support base includes several support plates, the top of which is arc-shaped and adapted to the side roller. There is a gap between each support plate, and the support plates are arranged in parallel and connected in sequence by a connecting rod.

5. The omnidirectional tracking parabolic mirror thermal energy absorption system according to claim 2, characterized in that, The azimuth drive unit includes a second drive motor. A mounting plate is provided on the support frame. The second drive motor is fixedly connected to the bottom of the mounting plate via a motor mounting base. A drive wheel is provided at the output end of the second drive motor. A driven wheel is provided on the concentric shaft. The drive wheel and the driven wheel are connected in a transmission manner.

6. The omnidirectional tracking parabolic mirror thermal energy absorption system according to claim 1, characterized in that, The elevation angle driving unit includes a first motor, which is fixedly connected to the column of the support unit. The output end of the first motor is provided with a screw, which is threadedly connected to a slide block. The slide block is slidably mounted on the column. The slide block is hinged to the first end of the adjusting beam, and the second end of the adjusting beam is hinged to the hinge seat of the support frame. The column is hinged to the support frame.

7. The omnidirectional tracking parabolic mirror thermal energy absorption system according to claim 6, characterized in that, Two sets of limiting slides are fixedly connected to the column, and the two limiting slides are symmetrically arranged on both sides of the slide.

8. The omnidirectional tracking parabolic mirror thermal energy absorption system according to claim 6, characterized in that, The slide block is provided with a threaded through hole, the screw is disposed in the threaded through hole, the slide block is provided with a horizontal extension, and a hinge seat is installed at the end of the horizontal extension. The first end of the adjusting beam is hinged to the hinge seat.

9. The omnidirectional tracking parabolic mirror thermal energy absorption system according to claim 1, characterized in that, The support unit includes a column, a support frame, and a support frame. The bottom of the column is provided with a base, the cross-sectional area of ​​which is larger than that of the column. The top of the column is rotatably connected to the support frame, and the support frame is fixedly connected to the support frame.

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