Heliostat support and heliostat system

Abstract

The utility model discloses a heliostat support and a heliostat system, which relate to the technical field of solar photo-thermal application and comprise a stand column, a supporting assembly and a vertical driving device. The supporting assembly is used for supporting the heliostat; the supporting assembly comprises a main shaft; the supporting assembly is hinged to one end of the stand column through a spindle. The vertical driving device is arranged at one end of the stand column and used for driving the supporting assembly to rotate around the axis of the main shaft. The supporting assembly further comprises a hydraulic telescopic rod and a locking device arranged on the hydraulic telescopic rod. One end of the hydraulic telescopic rod is hinged to the supporting assembly. The other end of the hydraulic telescopic rod is axially limited with the stand column; when the supporting assembly rotates around the axis of the main shaft, the hydraulic telescopic rod can stretch out and draw back along with the supporting assembly. The locking device is used for locking the hydraulic telescopic rod at the length corresponding to the rotating angle of the supporting assembly. After the angle is adjusted, the position is locked through the hydraulic telescopic rod and the locking device, and the stability of the support is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar thermal application, and in particular to a heliostat bracket and a heliostat system. Background Art

[0002] The heliostat bracket is generally made of steel frame structure, which presents an umbrella-like support structure and is supported by a column. The heliostat is connected to the upper end of the column by hinged connection and the vertical angle is adjusted by the vertical drive device. After the heliostat bracket has adjusted the vertical angle, the self-locking effect of the vertical drive device itself is poor, resulting in the heliostat bracket being very unstable. In windy weather, the heliostat bracket as a whole will have a slight shake (in the vertical direction).

[0003] If the heliostat bracket is deformed by 0.1 degrees due to shaking, the position of the light spot reflected on the heat absorber will be deformed and displaced by up to ten meters. If hundreds or thousands of heliostat brackets are deformed at the same time, the energy of the sunlight concentrated on the heat absorber will be dispersed or reduced, ultimately resulting in low power generation efficiency. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art to a certain extent. To this end, the utility model provides a heliostat bracket and a heliostat system with a stable structure.

[0005] In order to achieve the above-mentioned object, the utility model adopts the following technical solutions in the first aspect:

[0006] A heliostat support, comprising a column, a support assembly and a vertical drive device; the support assembly is used to support the heliostat; the support assembly comprises a main shaft; the support assembly is hinged to one end of the column through the main shaft; the vertical drive device is arranged at one end of the column and is used to drive the support assembly to rotate around the axis of the main shaft; the support assembly also comprises a hydraulic telescopic rod and a locking device arranged on the hydraulic telescopic rod;

[0007] One end of the hydraulic telescopic rod is hinged to the support assembly; the other end of the hydraulic telescopic rod is axially limited to the column; when the support assembly rotates around the axis of the main shaft, the hydraulic telescopic rod can be extended and retracted along with the support assembly;

[0008] The locking device is used to lock the hydraulic telescopic rod at a length corresponding to the rotation angle of the support assembly.

[0009] Optionally, a through hole connecting the rod chamber and the rodless chamber of the hydraulic telescopic rod is provided on the piston of the hydraulic telescopic rod, and the locking device includes a solenoid valve arranged in the through hole, and the solenoid valve is used to control the opening and closing of the through hole.

[0010] Optionally, the hydraulic telescopic rod also includes a connecting chamber, both ends of which are respectively connected to the rod chamber and the rodless chamber, and the locking device includes an electromagnetic valve arranged in the connecting chamber, the rod chamber and the rodless chamber, and the electromagnetic valve is used to control the connection and disconnection between the rod chamber and the rodless chamber.

[0011] Optionally, the other end of the hydraulic telescopic rod is hinged to the column.

[0012] Optionally, the support assembly further includes a connecting rod; one end of the connecting rod is connected to the main shaft; the other end of the connecting rod extends radially along the main shaft; and the hinge point between the hydraulic telescopic rod and the support assembly is located at the other end of the connecting rod.

[0013] Optionally, it also includes a mounting base column and a horizontal driving device; one end of the column is rotatably connected to the mounting base column;

[0014] The horizontal driving device includes a first rotating cylinder; the bottom of the cylinder body of the first rotating cylinder is connected to the flange of the mounting base column; the rotating body of the first rotating cylinder is connected to the lower end flange of the column at the end opposite to the bottom of the cylinder body, and the first rotating cylinder is used to drive the column to rotate around the axis of the column.

[0015] Optionally, the vertical drive device includes a second rotary cylinder;

[0016] The cylinder body of the second rotary cylinder is fixed to the other end of the column, and the column extends in the radial direction of the rotating body of the second rotary cylinder; the main shaft is coaxially connected to the rotating body of the second rotary cylinder.

[0017] Optionally, a mounting seat plate is provided on the side of the cylinder body of the second rotary cylinder; a mounting top plate matching the mounting seat plate is provided at the upper end of the column; and the mounting seat plate and the mounting top plate are connected via fasteners.

[0018] Optionally, the cylinder body of the second rotary cylinder has two opposite openings, and the rotating body of the second rotary cylinder has two opposite connecting ends and axial holes respectively connecting the two connecting ends, and the connecting ends are respectively located in the two openings of the cylinder body; the main shaft is arranged in the axial hole and is circumferentially fixed to the second rotary cylinder through a key connection.

[0019] The utility model further provides a heliostat system in a second aspect, comprising a heliostat bracket and a heliostat, wherein the heliostat bracket is the heliostat bracket provided in the first aspect, and the heliostat is arranged on the supporting assembly.

[0020] The heliostat support provided by the utility model has the following advantages: 1. It can be locked after adjusting the vertical angle through the cooperation of the hydraulic telescopic rod and the locking device; a triangular stable structure is formed between the hydraulic telescopic rod, the support assembly and the column, which helps to improve the stability of the support assembly and reduce the degree of shaking in the vertical direction when it is subjected to strong winds; 2. The fluidity and almost incompressible characteristics of the liquid in the active cavity are utilized in the hydraulic telescopic rod, which is convenient for stepless angle adjustment with the vertical drive device, and can also be fixed with the locking device after adjustment; 3. The vertical drive device and the horizontal drive device adopt pneumatic drive devices. Compared with the existing motor drive or hydraulic drive method, which requires a large number of power cables and hydraulic pipelines to be arranged in the mirror field, the pneumatic drive device only needs a low-cost hose, which can reduce costs when used on a large scale, and the two adopt the same type of drive device, which can reduce the later maintenance cost.

[0021] These features and advantages of the utility model will be disclosed in detail in the following specific embodiments and drawings. The best implementation or means of the utility model will be fully presented in conjunction with the drawings, but it is not a limitation of the technical solution of the utility model. In addition, these features, elements and components appearing in each of the following texts and drawings are multiple, and are marked with different symbols or numbers for convenience, but all represent components with the same or similar structure or function. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] Figure 1 It is a schematic structural diagram of the heliostat support in one embodiment, showing the connection mode between the lower end of the hydraulic telescopic rod and the column.

[0024] Figure 2 It is a structural schematic diagram of the heliostat support in one embodiment, showing the connection mode between the lower end of the hydraulic telescopic rod and the mounting base column.

[0025] Figure 3 The figure is a schematic diagram of the structure of the hydraulic telescopic rod in one embodiment, showing the through hole on the piston and the solenoid valve.

[0026] Figure 4 It is a schematic diagram of the structure of a hydraulic telescopic rod in an embodiment, showing a connecting cavity.

[0027] Figure 5 FIG. 1 is a schematic structural diagram of a heliostat support according to an embodiment, showing a specific implementation of a first rotating cylinder and a second rotating cylinder.

[0028] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0029] Among them, 100, mounting base column; 200, column; 210, mounting top plate; 300, supporting assembly; 310, main shaft; 320, crossbeam; 330, connecting rod; 400, first rotating cylinder; 500, second rotating cylinder; 510, mounting seat plate; 520, axial hole; 600, hydraulic telescopic rod; 610, long cylinder; 611, movable cavity; 612, rod cavity; 613, rodless cavity; 614, connecting cavity; 620, long rod; 630, piston; 631, through hole; 640, solenoid valve. DETAILED DESCRIPTION

[0030] The following is a detailed description of embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments in the implementation manner are intended to be used to explain the present invention and should not be construed as limiting the present invention.

[0031] References to "one embodiment" or "an example" or "an example" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment itself may be included in at least one embodiment disclosed in the present utility model. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.

[0032] Example:

[0033] like Figure 1 As shown, a heliostat support includes a mounting base column 100, a column 200, a support assembly 300, a horizontal drive device and a vertical drive device.

[0034] The mounting base column 100 is usually a column or a stand erected on the ground, and is mostly a tubular structure, such as a round tube. The lower end of the mounting base column 100 is used to be inserted into the ground or fixed to the mounting base column 100 buried in the ground.

[0035] The column 200 is vertically arranged on the mounting base column 100. The lower end of the column 200 is rotatably connected to the upper end of the mounting base column 100. The horizontal driving device is arranged on the mounting base column 100 and is used to drive the column 200 to rotate around the axis of the column 200 on the mounting base column 100.

[0036] The support assembly 300 is used to support the heliostat. The support assembly 300 includes a main shaft 310 , a hydraulic telescopic rod 600 , and a locking device disposed on the hydraulic telescopic rod 600 .

[0037] The vertical driving device (for example, a second rotary cylinder 500) is disposed at the upper end of the column 200. The support assembly 300 is hinged to the upper end of the column 200 via the main shaft 310, and the main shaft 310 is disposed horizontally so that the column 200 extends in the radial direction of the main shaft 310. The support assembly 300 can rotate around the axis of the main shaft 310 when driven by the vertical driving device.

[0038] When the support assembly 300 is driven by the vertical drive device and rotated to a preset angle, the heliostat fixed on the support assembly 300 can reflect sunlight onto the heat exchanger. At this time, in order to improve the stability of the support assembly 300 and prevent it from being blown off by strong winds. In this embodiment, the hydraulic telescopic rod 600 is arranged between the support assembly 300 and the column 200, or between the support assembly 300 and the mounting base column 100, and a locking device is arranged on the hydraulic telescopic rod 600. When the support assembly 300 rotates around the axis of the main shaft 310, the length of the hydraulic telescopic rod 600 can be adjusted with the rotation angle of the support assembly 300. The locking device is used to lock the hydraulic telescopic rod 600 at a length corresponding to the rotation angle of the support assembly 300.

[0039] Specifically, one end of the hydraulic telescopic rod 600 is hinged to the support assembly 300 , and the hinge point is away from the main shaft 310 in the radial direction of the main shaft 310 .

[0040] The other end of the hydraulic telescopic rod 600 is axially limited with the column 200. Figure 1 A hoop is provided at the lower end of the middle column 200, and the other end of the hydraulic telescopic rod 600 is hinged to the hoop, so that the other end of the hydraulic telescopic rod 600 can be limited in the axial direction of the column 200 and can also rotate with the rotation of the column 200, thereby forming a triangular stable structure between the hydraulic telescopic rod 600, the support assembly 300 and the column 200; for example, Figure 2 A bearing is provided at the upper end of the middle mounting base column 100, and the other end of the hydraulic telescopic rod 600 is hinged to the bearing on the mounting base column 100; in this way, the other end of the hydraulic telescopic rod 600 can be limited in the axial direction of the column 200, and when the column 200 rotates, the hydraulic telescopic rod 600, the support assembly 300, the column 200, and the portion of the mounting base column 100 located above the bearing can form a triangular stable structure.

[0041] The above-mentioned heliostat support can be locked after adjusting the vertical angle through the cooperation of the hydraulic telescopic rod 600 and the locking device. The hydraulic telescopic rod 600, the support assembly 300 and the column 200 (or a part of the installation foundation) form a triangular stable structure, which helps to improve the stability of the support assembly 300 and reduce its shaking degree in the vertical direction when it is hit by strong winds.

[0042] like Figure 1 and 3 As shown, the hydraulic telescopic rod 600 includes a long tube 610 and a piston rod assembly that can be telescopically moved relative to each other in the length direction.

[0043] Specifically, the long cylinder 610 has an active cavity 611 arranged along its length direction. Specifically, the long cylinder 610 includes a cylinder body and end caps located at both ends of the cylinder body, and the two end caps are respectively sealed and connected to the two ends of the cylinder body to form the active cavity 611 between the three, and the active cavity 611 is used to be filled with liquid.

[0044] The piston rod assembly includes a long rod 620 and a piston 630 disposed at one end of the long rod 620 .

[0045] The piston 630 can slide in the active cavity 611 along the length direction of the active cavity 611, and the periphery of the piston 630 is sealed with the cavity wall of the active cavity 611, so that when the piston 630 slides, the active cavity 611 can be separated into two liquid cavities with variable volumes, namely, a rod cavity 612 and a rodless cavity 613. The locking device is used to control the connection and isolation of the two liquid cavities.

[0046] One end of the long rod 620 is connected to the piston 630 , and the other end of the long rod 620 passes through the movable cavity 611 of the long tube 610 , and the long rod 620 is sealed and connected to the long tube 610 at the passing portion.

[0047] The other end of the long rod 620 is connected to one of the support assembly 300 and the column 200, and the long tube 610 is connected to the other of the support assembly 300 and the column 200 at the end opposite to the long rod 620. That is, the other end of the long rod 620 is hinged to the support assembly 300, and the long tube 610 is hinged to the column 200, or the other end of the long rod 620 is hinged to the column 200, and the long tube 610 is hinged to the support assembly 300, and no limitation is made here. In this embodiment, only the way that the long tube 610 is hinged to the column 200 at the end opposite to the long rod 620 is described as an example.

[0048] When the long rod 620 or the long tube 610 is hinged to the column 200, it can be directly hinged to the lower end of the column 200, or it can be hinged to the bearing on the mounting base column 100. Since the mounting base column 100 and the column 200 are on the same axis, it can be regarded as an indirect hinge between the other end of the long rod 620 and the column 200.

[0049] like Figure 3 As shown, in one embodiment, the piston 630 is provided with a through hole 631, and the two sides of the through hole 631 are respectively connected to the two liquid chambers. The locking device includes a solenoid valve 640 disposed in the through hole 631, and the long rod 620 is hollow and extends to the solenoid valve 640, which is used to leave a wiring channel for the solenoid valve 640. The solenoid valve 640 is used to control the opening and closing of the through hole 631, thereby controlling the connection and separation of the two variable-volume liquid chambers.

[0050] When the vertical drive device adjusts the angle of the support assembly 300 in the vertical direction, the solenoid valve 640 is in an open state, the through holes 631 are connected to the liquid chambers respectively, and the support assembly 300 rotates around the axis of the main shaft 310 on the column 200, so that the length of the hydraulic telescopic rod 600 can change accordingly, that is, drive the piston rod assembly. Correspondingly, when the piston 630 slides toward one end along its length direction in the active cavity 611, the liquid in the liquid chamber in front of the moving direction of the piston 630 can enter the liquid chamber in the rear of the moving direction of the piston 630 through the through hole 631, so that the volume of the liquid chamber in front of the moving direction of the piston 630 becomes smaller, and the volume of the liquid chamber in the rear of the moving direction of the piston 630 increases.

[0051] In an alternative embodiment, if Figure 4 As shown, the long tube 610 also includes a connecting cavity 614, and the connecting cavity 614 and the active cavity 611 are arranged in parallel, that is, the connecting cavity 614 is also arranged along the length direction of the long tube 610, so that the two ends of the connecting cavity 614 are respectively connected with the two ends of the active cavity 611. The fixed device includes an electromagnetic valve 640 arranged in the connecting cavity 614, and the electromagnetic valve 640 is used to control the connection and disconnection between the liquid cavities on both sides of the connecting cavity 614.

[0052] The communication cavity 614 can be realized by an external pipeline, or as Figure 4 In the embodiment, a double-layer sleeve structure is adopted. The middle area of ​​the inner sleeve in the double-layer sleeve forms an active cavity 611, and the interlayer between the outer sleeve and the inner sleeve forms a connecting cavity 614. The inner sleeve has a notch on the side wall near the end of the sleeve, and the notch connects the active cavity 611 and the connecting cavity 614. Multiple notches can be provided to increase the maximum flow rate per unit time.

[0053] like Figure 1 and 5As shown, the support assembly 300 further includes a connecting rod 330. One end of the connecting rod 330 is connected to the main shaft 310, and the other end of the connecting rod 330 extends radially along the main shaft 310. The hinge point between the hydraulic telescopic rod 600 and the support assembly 300 is located at the other end of the connecting rod 330, that is, one end of the hydraulic telescopic rod 600 is hinged to the other end of the connecting rod 330.

[0054] like Figure 5 As shown, in one embodiment, the horizontal driving device includes a first rotary cylinder 400. The bottom of the cylinder body of the first rotary cylinder 400 is flange-connected to the mounting base column 100. The rotating body of the first rotary cylinder 400 is flange-connected to the lower end of the column 200 at one end opposite to the bottom of the cylinder body, and the first rotary cylinder 400 is used to drive the column 200 to rotate around the axis of the column 200.

[0055] like Figure 6 As shown, in one embodiment, the vertical drive device includes a second rotary cylinder 500. The cylinder body of the second rotary cylinder 500 is fixed to the other end of the column 200, and the column 200 extends in the radial direction of the rotating body of the second rotary cylinder 500. The main shaft 310 is coaxially connected to the rotating body of the second rotary cylinder 500.

[0056] Specifically, a mounting seat plate 510 is provided on the side of the cylinder body of the second rotary cylinder 500, and a mounting top plate 210 matching the mounting seat plate 510 is provided on the upper end of the column 200. The mounting seat plate 510 is connected to the mounting top plate 210 via fasteners.

[0057] The cylinder body of the second rotary cylinder 500 has two opposite openings, and the rotating body of the second rotary cylinder 500 has two opposite connecting ends and shaft holes 520 respectively connected to the two connecting ends, and the connecting ends are respectively located in the two openings of the cylinder body. The main shaft 310 is disposed in the shaft hole 520 and is circumferentially fixed to the second rotary cylinder 500 through a key connection.

[0058] like Figure 5 As shown, in one embodiment, the support assembly 300 further includes a plurality of crossbeams 320 disposed on the main shaft 310, and the plurality of crossbeams 320 intersect with the main shaft 310 to form a mounting surface for fixing the heliostat. A pin is provided between the crossbeams 320 located on both sides of the second rotary cylinder 500 in the axial direction of the main shaft 310, and the pin is at a certain distance from the main shaft 310 in the radial direction of the main shaft 310. One end of the hydraulic telescopic rod 600 is hinged to the support assembly 300 through the pin, and the crossbeams 320 located on both sides of the second rotary cylinder 500 can be regarded as connecting rods 330.

[0059] In one embodiment, the heliostat support further includes an air compressor, which provides compressed gas to the first rotating cylinder 400 and the second rotating cylinder 500 respectively.

[0060] In addition, this embodiment further provides a heliostat system, including a heliostat bracket and a heliostat, wherein the heliostat bracket is the above-mentioned heliostat bracket, and the heliostat is arranged on the supporting assembly.

[0061] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention shall be included in the scope of the claims.

Claims

1. A heliostat support, comprising a column, a support assembly and a vertical drive device; the support assembly is used to support the heliostat; the support assembly comprises a main shaft; the support assembly is hinged to one end of the column through the main shaft; the vertical drive device is arranged at one end of the column and is used to drive the support assembly to rotate around the axis of the main shaft; characterized in that The support assembly also includes a hydraulic telescopic rod and a locking device arranged on the hydraulic telescopic rod; One end of the hydraulic telescopic rod is hinged to the support assembly; the other end of the hydraulic telescopic rod is axially limited to the column; when the support assembly rotates around the axis of the main shaft, the hydraulic telescopic rod can be extended and retracted along with the support assembly; The locking device is used to lock the hydraulic telescopic rod at a length corresponding to the rotation angle of the support assembly.

2. The heliostat support according to claim 1, characterized in that: A through hole connecting the rod cavity and the rodless cavity of the hydraulic telescopic rod is provided on the piston of the hydraulic telescopic rod. The locking device includes a solenoid valve arranged in the through hole, and the solenoid valve is used to control the opening and closing of the through hole.

3. The heliostat support according to claim 2, characterized in that: The hydraulic telescopic rod also includes a connecting chamber, both ends of which are respectively connected to the rod chamber and the rodless chamber. The locking device includes an electromagnetic valve arranged in the connecting chamber, the rod chamber and the rodless chamber, and the electromagnetic valve is used to control the connection and disconnection between the rod chamber and the rodless chamber.

4. The heliostat support according to claim 2, characterized in that: The other end of the hydraulic telescopic rod is hinged to the column.

5. The heliostat support according to claim 1, characterized in that: The support assembly also includes a connecting rod; one end of the connecting rod is connected to the main shaft; the other end of the connecting rod extends radially along the main shaft; and the hinge point between the hydraulic telescopic rod and the support assembly is located at the other end of the connecting rod.

6. The heliostat support according to any one of claims 1 to 5, characterized in that: It also includes a mounting base column and a horizontal drive device; one end of the column is rotatably connected to the mounting base column; The horizontal driving device includes a first rotating cylinder; the bottom of the cylinder body of the first rotating cylinder is connected to the flange of the mounting base column; the rotating body of the first rotating cylinder is connected to the lower end flange of the column at the end opposite to the bottom of the cylinder body, and the first rotating cylinder is used to drive the column to rotate around the axis of the column.

7. The heliostat support according to any one of claims 1 to 5, characterized in that: The vertical drive device includes a second rotary cylinder; The cylinder body of the second rotary cylinder is fixed to the other end of the column, and the column extends in the radial direction of the rotating body of the second rotary cylinder; the main shaft is coaxially connected to the rotating body of the second rotary cylinder.

8. The heliostat support according to claim 7, characterized in that: A mounting seat plate is provided on the side of the cylinder body of the second rotary cylinder; a mounting top plate matching the mounting seat plate is provided on the upper end of the column; the mounting seat plate and the mounting top plate are connected by fasteners.

9. The heliostat support according to claim 8, characterized in that: The cylinder body of the second rotary cylinder has two opposite openings, and the rotating body of the second rotary cylinder has two opposite connecting ends and axial holes respectively connected to the two connecting ends, and the connecting ends are respectively located in the two openings of the cylinder body; the main shaft is arranged in the axial holes and is circumferentially fixed to the second rotary cylinder through a key connection.

10. A heliostat system, comprising a heliostat support and a heliostat, characterized in that: The heliostat bracket is the heliostat bracket according to any one of claims 1 to 9, and the heliostat is arranged on the supporting assembly.

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