Positioning device for upright post of heliostat

Abstract

The utility model relates to the technical field of photo-thermal engineering, and discloses a positioning device for a heliostat stand column, which comprises an RTK measuring instrument and a laser pen, the RTK measuring instrument comprises a host and a hand strap electrically connected with the host, the host is connected with the upper end of the heliostat stand column through a connecting flange, and the laser pen is connected with the host. The center line of the positioning antenna of the host coincides with the center line of the heliostat stand column, specifically, the center line of the connecting flange coincides with the center line of the heliostat stand column, the host is used for positioning a coordinate point of the orientation where the front face of the heliostat stand column should face, the hand book is used for displaying an image of the coordinate point, and the laser pen is connected to the connecting flange. The laser pen is located on one side of the front face of the heliostat stand column, a light source point of the laser pen inclines downwards, and a light spot, irradiated on the ground, of the laser pen coincides with a coordinate point of the azimuth angle. The positioning device provided by the utility model can ensure that the heliostat upright post can be positioned more accurately at the azimuth angle.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of light and heat engineering, especially relates to a positioning device for heliostat stand. BACKGROUND

[0002] China has made remarkable progress in the field of light and heat power generation, and the light and heat project is gradually showing its great potential and value. As an important part of renewable energy, the light and heat power generation technology uses a light collection and heat collection system to collect and reflect sunlight, heats molten salt to 565℃, stores heat energy through a molten salt energy storage system, and generates electric energy using a steam power generation system. The light collection and heat collection system reflects sunlight to heat the heat storage medium in the collector by tens of thousands of heliostats. The heliostat stand is an important load-bearing unit, and the azimuth angle precision requirement is high during installation. The orientation deviation of the heliostat stand will affect the efficiency of the heliostat.

[0003] Currently, the positioning and installation of the heliostat stand is usually to determine the fixed installation point, and the heliostat stand is vertically buried at the installation point. When determining the azimuth angle precision, a connecting flange is first connected to the top end of the heliostat stand. One side of the connecting flange ring is fixedly connected with a measuring rod parallel to the heliostat stand, and a horizontal rod is vertically connected to the side of the measuring rod away from the heliostat stand. A compass for determining the installation azimuth angle of the heliostat stand is arranged on the horizontal rod. The working personnel determines the azimuth angle to which the front of the heliostat stand should face during installation by the pointing direction of the compass.

[0004] However, the compass can only be used to determine the approximate azimuth angle of the heliostat stand installation, and the compass is easily disturbed by the earth's magnetic field, resulting in low positioning precision of the azimuth angle during installation of the heliostat stand, affecting the first acceptance qualification rate. INVENTION CONTENTS

[0005] The utility model provides a kind of positioning device for heliostat stand, and the positioning device can ensure that the positioning of heliostat stand in azimuth angle is more accurate.

[0006] The utility model provides a kind of positioning device for heliostat stand, and the positioning device can ensure that the positioning of heliostat stand in azimuth angle is more accurate. The utility model provides a kind of positioning device for heliostat stand, including: RTK measuring instrument, laser pen, RTK measuring instrument includes host computer and with host computer electric connection hand thin, host computer is connected with the upper end of heliostat stand by connecting flange, the center line of the positioning antenna of host computer coincides with the center line of heliostat stand, specifically, the center line of connecting flange also coincides with the center line of heliostat stand, host computer is used to position the coordinate point of the azimuth to which the front of heliostat stand should face, hand thin is used to show the image of the coordinate point, laser pen is connected on connecting flange, laser pen is located at one side of the front of heliostat stand, the light source point of laser pen is downwardly inclined, and the light spot on the ground irradiated by laser pen coincides with the coordinate point of azimuth angle.

[0007] Preferably, the acute angle a between the light ray irradiated downward by the laser pen and the horizontal plane is 45°.

[0008] Preferably, the light source point is flush with the upper end of the heliostat stand, so that the length of the straight line between the point on the ground irradiated by the laser pen and the point directly below the light source point is equal to the height between the uppermost part of the heliostat and the ground.

[0009] Preferably, the laser pen is connected to the connecting flange through a measuring rod, the outer diameter of the connecting flange is greater than the outer diameter of the heliostat stand, the measuring rod is fixedly connected to the side wall of the connecting flange, the center axis of the measuring rod is parallel to the center axis of the connecting flange, the laser pen is fixedly connected with a support, and the support is fixedly connected to the measuring rod.

[0010] Preferably, the end of the measuring rod away from the connecting flange is connected with a fixed clamp, and the fixed clamp is used to be sleeved on the heliostat stand to reinforce the measuring rod.

[0011] Preferably, the connecting flange is connected to the upper end of the heliostat stand through a plurality of positioning bolts.

[0012] Preferably, the fixed clamp comprises two detachably connected clamping rings, the clamping rings are semicircular, the lower end of the measuring rod is fixedly connected to the outer wall of one of the clamping rings, and the center line of the two clamping rings after being sleeved on the heliostat stand coincides with the center line of the connecting flange.

[0013] Preferably, the materials of the connecting flange, the clamping ring and the measuring rod are all aluminum alloy or carbon fiber.

[0014] Compared with the prior art, the device has the beneficial effects that: the RTK measuring instrument is arranged at the center of the top end of the heliostat stand, is used for positioning the central coordinates of the heliostat stand, and is used for accurately positioning and adjusting the azimuth angle of the heliostat stand installation in cooperation with the laser pen. Specifically, the main machine can realize positioning of the heliostat stand satellite by using the receiving and transmitting of the antenna signal, and can transmit the image to the tablet computer in real time for real-time monitoring. When in use, the laser pen is turned on, and a positioning point is set on the azimuth angle direction in which the front of the heliostat stand should face according to the tablet computer. When the positioning point in which the front of the heliostat stand faces is set, the positioning point appears on the display screen of the tablet computer. The angle of the heliostat stand is adjusted left and right to make the laser pen coincide with the positioning point, so that the azimuth angle of the heliostat stand is accurately set. In summary, the positioning device can control the azimuth angle of the stand installation within ±2°. The introduction of the RTK measuring instrument makes the positioning of the azimuth angle of the heliostat stand more accurate, greatly reduces the labor intensity, simplifies the construction process, makes the operation more intuitive and easy to understand by simplifying the operation steps and reducing unnecessary actions, greatly improves the work efficiency, and provides a safer and more convenient working environment for the operator, and improves the one-time construction qualification rate. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A structure schematic view of a positioning device for a heliostat stand column is provided for the embodiment of the present application.

[0016] Figure 2 A structure schematic view of a positioning device for a heliostat stand column in use is provided for the embodiment of the present application.

[0017] BRIEF DESCRIPTION OF DRAWINGS:

[0018] 1, connecting flange; 11, positioning bolt; 2, RTK measuring instrument; 21, main machine; 22, hand sheet; 3, laser pen; 4, measuring rod; 5, fixed hoop; 51, hoop; a, included angle. DETAILED DESCRIPTION

[0019] The embodiment of the present application will be described in detail below with reference to the drawings, but it should be understood that the protection scope of the present application is not limited by the specific embodiment.

[0020] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the technical scheme of 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.

[0021] REFERENCE Figure 1 and Figure 2 The present application provides a positioning device for a heliostat stand column, comprising: an RTK measuring instrument 2, a laser pen 3, the RTK measuring instrument 2 comprising a main machine 21 and a hand sheet 22 electrically connected with the main machine 21, the main machine 21 being connected with the upper end of the heliostat stand column through a connecting flange 1, the center line of the positioning antenna in the main machine 21 coinciding with the center line of the heliostat stand column, specifically, the center line of the connecting flange 1 also coincides with the center line of the heliostat stand column, the main machine 21 being used for positioning the coordinate point of the orientation which the front face of the heliostat stand column should face, the hand sheet 22 being used for displaying the image of the coordinate point, the laser pen 3 being connected on the connecting flange 1, the laser pen 3 being close to one side of the front face of the heliostat stand column, the laser pen 3 being positioned on one side of the front face of the heliostat stand column through limiting to make one side of the front face of the heliostat stand column face the same direction as the light source point of the laser pen 3, the light source point of the laser pen 3 being inclined downward, the light point on the ground irradiated by the laser pen 3 coinciding with the coordinate point of the azimuth angle.

[0022] In the above embodiment, considering the large number of heliostat stand installations, how to simply and efficiently complete the installation of the heliostat stand is a problem to be solved in mirror field construction, therefore, the connecting flange 1 provided by the device can play the role of connecting the RTK measuring instrument 2, since the upper end of the existing heliostat stand is provided with a mounting screw hole, the connecting flange 1 can be quickly connected through bolts and the like, thereby realizing modular installation and disassembly, which is more efficient and portable in use, in order to cope with the installation of many heliostat stands, the RTK measuring instrument 2 provided is a kind of dynamic real-time positioning and measuring instrument, which can be used for real-time detection of the coordinates and elevation of the measured point, the positioning antenna of the host computer is arranged at the center of the top of the heliostat stand, which is mainly used for positioning the center coordinates of the heliostat stand, so as to cooperate with the laser pen 3 to accurately position and adjust the azimuth angle of the heliostat stand installation, specifically, the host computer 21 can use the transmission and reception of antenna signals to realize the positioning of the heliostat stand satellite, and can transmit images to the tablet 22 in real time for real-time monitoring, when using, open the laser pen 3 and set a positioning point according to the azimuth angle direction in which the front of the heliostat stand should face through the tablet 22, when the positioning point in which the front of the heliostat stand faces is set, the positioning point will appear on the display screen of the tablet 22, the angle of the heliostat stand is adjusted left and right, so that the laser pen 3 coincides with the positioning point, thereby realizing the accurate setting of the azimuth angle of the heliostat stand, in summary, the positioning device can conveniently control the azimuth angle of the stand within ±2°, the introduction of the RTK measuring instrument 2 makes the positioning of the azimuth angle of the heliostat stand more accurate, greatly reduces the labor intensity, simplifies the construction process, through simplifying the operation steps and reducing unnecessary actions, the operation is more intuitive and easy to understand, greatly improves the work efficiency, at the same time, provides a safer and more convenient working environment for the operator, improves the one-time construction qualification rate.

[0023] Reference Figure 1 And Figure 2 The acute angle a between the light ray irradiated downward by the laser pen 3 and the horizontal plane is 45°, and the light source point is flush with the upper end of the heliostat stand.

[0024] In the above embodiment, by limiting the included angle a of the laser pen 3 to 45°, the equal sides of the isosceles right triangle can be utilized to make it more convenient to set the azimuth angle positioning point of the heliostat stand, which only needs to add the length between the upper part of the heliostat stand and the ground when the heliostat stand is vertical to the length of the basic interval between the light source point of the laser pen 3 and the center axis of the heliostat stand. For example, when the basic length of the interval between the light source point of the laser pen 3 and the center axis of the heliostat stand is 0.2 m, and the conventional heliostat stand is 2.5 m, the length extending upward from the ground is 1.5 m, then when setting the azimuth angle positioning point, the positioning point is set on the circle with the axis of the heliostat stand as the center and the radius of 1.7 m, which can realize the coincidence of the light of the laser pen 3 and the positioning point.

[0025] With reference to Figure 1 and Figure 2 , the laser pen 3 is connected with the connecting flange 1 through the measuring rod 4, the outer diameter of the connecting flange 1 is larger than the outer diameter of the heliostat stand, the measuring rod 4 is fixedly connected to the side wall of the connecting flange 1, the measuring rod 4 is parallel to the center axis of the connecting flange 1, the laser pen 3 is fixedly connected with a support, and the support is fixedly connected with the measuring rod 4.

[0026] In the above embodiment, by limiting the outer diameter of the connecting flange 1 to be larger than the outer diameter of the heliostat stand, it can be ensured that there is an interval between the measuring rod 4 and the heliostat stand after installation, and the perpendicularity of the measuring rod 4 and the connecting flange 1 will not be affected.

[0027] With reference to Figure 1 and Figure 2 , considering that the RTK detector needs the heliostat stand to be in the vertical state for the highest accuracy when applied, the perpendicularity of the heliostat stand is required to be higher during application, and the end of the measuring rod 4 away from the connecting flange 1 may be offset or floating during the measurement of the perpendicularity, which affects the measurement of the perpendicularity of the heliostat stand, therefore, a fixed clamp 5 is connected to the end of the measuring rod 4 away from the connecting flange 1, the fixed clamp 5 is used to be sleeved and installed on the heliostat stand to realize the reinforcement of the whole measuring rod 4.

[0028] In the above embodiment, by setting the fixed clamp 5, the end of the measuring rod 4 away from the connecting flange 1 can be further limited, which avoids the end of the measuring rod 4 away from the connecting flange 1 from being offset or floating during the measurement of the perpendicularity of the heliostat stand by the perpendicularity measuring instrument, which affects the measurement of the perpendicularity of the heliostat stand.

[0029] With reference to Figure 1 and Figure 2 , the connecting flange 1 is connected to the upper end of the heliostat stand through a plurality of positioning bolts 11.

[0030] In the above embodiment, specifically, four positioning bolts 11 of M10*60 are arranged to connect the connecting flange 1 and the heliostat column, which can facilitate dismounting and mounting, thereby realizing modular application to other heliostat installation to determine the azimuth angle.

[0031] Reference Figure 1 And Figure 2 The fixed hoop 5 comprises two detachably connected hoop rings 51, the hoop ring 51 is semicircular, the lower end of the measuring rod 4 is fixedly connected with the outer wall of one of the hoop rings 51, and the two hoop rings 51 are sleeved and installed on the center line of the heliostat column after the center line of the connecting flange 1 coincides with the center line.

[0032] In the above embodiment, the two end portions of the hoop ring 51 are outwardly extended with flange thin plates, the two hoop rings 51 are connected through high-strength bolts, preferably, a soft rubber layer can be arranged on the inner wall of the hoop ring 51, through the arranged rubber layer, the hoop ring 51 can avoid damaging the side wall of the heliostat column, wherein the rubber layer is thin, when the hoop ring 51 is clamped, the parallel relationship between the measuring rod 4 and the center line of the connecting flange 1 is not affected, and the perpendicularity of the measuring rod 4 and the connecting flange 1 is not affected, thereby the verticality detection of the heliostat column is not affected.

[0033] The materials of the connecting flange 1, the hoop ring 51 and the measuring rod 4 are all aluminum alloy or carbon fiber.

[0034] In the above embodiment, by limiting the materials of the connecting flange 1, the hoop ring 51 and the measuring rod 4 to be aluminum alloy or carbon fiber, the overall structure weight can be reduced, the use is not only light but also durable, and the portability, work efficiency and safety are greatly improved.

[0035] The above only discloses several specific embodiments of the utility model, but the utility model embodiments are not limited to this, any changes that can be thought of by any person skilled in the art should fall within the protection scope of the utility model.

Claims

1. A positioning device for a heliostat column, characterized in that: include: An RTK measuring instrument (2) includes a host (21) and a handheld controller (22) electrically connected to the host (21), wherein the host (21) is connected to the upper end of a heliostat column via a connecting flange (1), a center line of a positioning antenna of the host (21) coincides with a center line of the heliostat column, the host (21) is used to locate a coordinate point of an orientation that the front face of the heliostat column should face, and the handheld controller (22) is used to display an image of the coordinate point; A laser pen (3) is connected to the connecting flange (1), the laser pen (3) is located on one side of the front face of the heliostat column, the light source point of the laser pen (3) is tilted downward, and the light point irradiated on the ground by the laser pen (3) coincides with the coordinate point of the azimuth angle.

2. A positioning device for a heliostat column according to claim 1, characterized in that: The acute angle a between the light irradiated downward by the laser pen (3) and the horizontal plane is 45°.

3. A positioning device for a heliostat column according to claim 2, characterized in that: The light source point is flush with the upper end of the heliostat column.

4. A positioning device for a heliostat column according to claim 3, characterized in that: The laser pen (3) is connected to the connecting flange (1) via a measuring rod (4); the outer diameter of the connecting flange (1) is larger than the outer diameter of the heliostat column; the measuring rod (4) is fixedly connected to the side wall of the connecting flange (1); the measuring rod (4) is parallel to the central axis of the connecting flange (1); the laser pen (3) is fixedly connected to a support; and the support is fixedly connected to the measuring rod (4).

5. A positioning device for a heliostat column according to claim 4, characterized in that: One end of the measuring rod (4) away from the connecting flange (1) is connected to a fixing hoop (5), and the fixing hoop (5) is used for being sleeved and installed on the heliostat column to achieve reinforcement of the measuring rod (4).

6. The positioning device for a heliostat column according to claim 1, wherein: The connecting flange (1) is connected to the upper end of the heliostat column via a plurality of positioning bolts (11).

7. The positioning device for a heliostat column according to claim 5, wherein: The fixed hoop (5) comprises two detachably connected holding rings (51), the holding rings (51) being semicircular, the lower end of the measuring rod (4) being fixedly connected to the outer wall of one of the holding rings (51), and the center lines of the two holding rings (51) after being sleeved and mounted on the heliostat column coincide with the center line of the connecting flange (1).

8. The positioning device for a heliostat column according to claim 4, wherein: The connecting flange (1), the holding ring (51) and the measuring rod (4) are all made of aluminum alloy or carbon fiber.

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