A fully automatic tracking anti typhoon type solar high temperature steam system

Abstract

The application discloses a full-automatic tracking anti-typhoon type solar high-temperature steam system, which comprises a plurality of light-collecting and heat-collecting units, light-collecting plates in each light-collecting and heat-collecting unit track the sun, the plurality of light-collecting and heat-collecting units are arranged to form a light-collecting array, the light-collecting array is fixedly installed on an arc-shaped ring beam base through a fixing support, photovoltaic plates are installed in a peripheral region of the light-collecting array, an arc-shaped rack is further fixedly installed at the bottom of the arc-shaped ring beam base, the arc-shaped rack is in transmission connection with a circumferential speed reducer, the arc-shaped rack is driven by the circumferential speed reducer, the arc-shaped ring beam base is driven to move in a circumferential direction through the meshing of the arc-shaped rack, and the light-collecting array is further driven to move in the circumferential direction, so that the sun azimuth is tracked. In the application, the height difference between the light-collecting plates and the solar vacuum tubes is inconsistent, the "high-low height difference" interval arrangement mode is adopted, and the wind resistance performance is better; the angle tracking of the light-collecting and heat-collecting unit is only realized by adjusting the angle of the light-collecting lens itself, rather than adjusting the overall angle of the light-collecting and heat-collecting unit, the tracking adjustment is more convenient, and the energy consumption is lower.

Description

Technical Field

[0001] This invention relates to the field of solar energy tracking technology, and in particular to a fully automatic tracking typhoon-resistant high-temperature solar steam system. Background Technology

[0002] For a long time, in the practice of solar energy applications, whether in the fields of solar thermal or photovoltaic, it has been difficult to overcome the limitations of the natural energy flux density of solar energy. The energy obtained per unit area is limited. Therefore, the working efficiency of various types of solar energy collectors is not high, the application range is not wide, and the input-output ratio of equipment is low. For example, photovoltaic application products have lingered at a production capacity of less than 180 watts per square meter for decades, and solar thermal application products are struggling in the low-temperature field below 80°C. Traditional concentrating solar collectors have complex structures and are inconvenient to install. Therefore, concentrating solar energy application technology with high collection ratio and easy installation on building roofs is attracting more and more attention. Summary of the Invention

[0003] The purpose of this invention is to provide a fully automatic tracking typhoon-resistant solar high-temperature steam system to solve the problems existing in the prior art.

[0004] To achieve the above objectives, the present invention provides the following solution: The present invention provides a fully automatic tracking typhoon-resistant solar high-temperature steam system, comprising several concentrating solar collectors, wherein the concentrating plate in each concentrating solar collector tracks the sun;

[0005] A plurality of the aforementioned concentrating solar collectors are arranged to form a concentrating array; the concentrating array is fixedly mounted on an arc-shaped ring beam base by a fixed bracket; photovoltaic panels are installed in the peripheral area of ​​the concentrating array; an arc-shaped rack is also fixedly mounted at the bottom of the arc-shaped ring beam base; the arc-shaped rack is connected to a circumferential geared motor; the circumferential geared motor drives the arc-shaped rack, which in turn drives the arc-shaped ring beam base to perform circumferential motion, thereby driving the concentrating array to perform circumferential motion and track the sun's position.

[0006] Each of the concentrating solar collector units has a drive shaft and a drive wire connected to each other; several drive shafts are driven and mounted on a tracking device; the tracking device includes a drive wire; the drive wire is placed on one side of the concentrating solar collector unit; the drive wire is driven and connected to the output shaft of a DC geared motor; several drive shafts are driven and mounted on the drive wire.

[0007] Each of the aforementioned concentrating solar collector units includes a heat collection tube and a concentrating plate; the concentrating plate is located above the heat collection tube; the concentrating plates in adjacent concentrating solar collector units have different heights and are arranged in a continuous wave-like pattern.

[0008] The concentrating heat collection unit also includes a fixed tripod; several fixed tripods are evenly spaced on the concentrating plate, and the two ends of the fixed tripods are fixedly connected to the concentrating plate; the other end of the fixed tripods is fixedly connected to the drive shaft; the heat collection tube is placed at the center of the fixed tripods.

[0009] Each of the aforementioned collector tubes has an open end connected to the collector header.

[0010] The collector tube is a solar vacuum tube with a built-in U-shaped tube array.

[0011] The light-concentrating plate is a linear Fresnel light-concentrating plate, and its light-concentrating structure is located at the bottom of the light-concentrating plate; the light-concentrating plate is also provided with several reinforcing ribs.

[0012] The collector manifold is filled with insulation material.

[0013] It is also equipped with a wind speed meter and a GPS locator; the wind speed meter and the GPS locator are electrically connected to the DC geared motor and the circumferential geared motor, respectively.

[0014] The present invention discloses the following technical effects: In the present invention, the position difference between the concentrating plate and the heat collection tube is inconsistent, and the "high and low position difference" interval arrangement method is adopted, which has better wind resistance; the angle tracking of the concentrating heat collection unit is achieved by adjusting the angle of the concentrating lens itself, rather than adjusting the overall angle of the concentrating heat collection unit, which makes tracking and adjustment more convenient and energy consumption lower. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a bottom view of the overall structure;

[0017] Figure 2 This is a top view of the overall structure;

[0018] Figure 3 This is a side view of the overall structure;

[0019] Figure 4 This is a schematic diagram of the concentrating solar collector unit structure;

[0020] Figure 5 This is a side view of the concentrating solar collector unit structure;

[0021] The components include: 1. Concentrating solar collector unit; 2. Transmission steel wire; 3. DC geared motor; 4. Photovoltaic panel; 5. Arc-shaped rack; 6. Circular geared motor; 7. Column; 8. Arc-shaped ring beam base; 101. Transmission shaft; 102. Solar collector tube; 103. Fixed tripod; 104. Concentrating plate; 105. Reinforcing rib; 106. Solar collector manifold; 107. Inlet / outlet; 9. Fixed bracket; 10. Wind speed meter; 11. GPS locator. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] This invention provides a fully automatic tracking typhoon-resistant solar high-temperature steam system, comprising several concentrating solar collector units 1, wherein a concentrating plate 104 in each concentrating solar collector unit 1 tracks the sun;

[0025] Several concentrating solar collector units 1 are arranged to form a concentrating array; the concentrating array is fixedly installed on the arc-shaped ring beam base 8 by a fixed bracket 9; photovoltaic panels 4 are installed in the surrounding area of ​​the concentrating array; an arc-shaped rack 5 is also fixedly installed at the bottom of the arc-shaped ring beam base 8; the arc-shaped rack 5 is connected to the circumferential reduction motor 6 for transmission; the arc-shaped rack 5 is driven by the circumferential reduction motor 6, and the arc-shaped rack 5 drives the arc-shaped ring beam base 8 to make circumferential motion through meshing, thereby driving the concentrating array to make circumferential motion and track the sun's position.

[0026] In each concentrating solar collector unit 1, the drive shaft 101 is connected to the drive wire 2; the drive wire 2 is placed on one side of the concentrating solar collector unit 1; the drive wire 2 is connected to the output shaft of the DC geared motor 3; and several drive shafts 101 are installed on the drive wire 2.

[0027] In one embodiment of the present invention, a plurality of columns 7 are also provided, which are fixedly installed at the bottom of the arc-shaped ring beam base 8.

[0028] Each concentrating heat collection unit 1 includes a heat collection tube 102 and a concentrating plate 104; the concentrating plate 104 is located above the heat collection tube 102; the concentrating plates 104 in adjacent concentrating heat collection units 1 have different heights and are arranged in a continuous wave-like pattern.

[0029] In one embodiment of the present invention, the angle of the concentrator 104 is adjusted according to the sunlight conditions to track solar energy and achieve efficient utilization of solar radiation. The drive shafts 101 of each concentrator unit 1 are interconnected via drive wires 2 to form a single drive unit. A DC geared motor 3 drives the drive wires 2, which in turn drives each drive shaft 101, allowing the concentrator 104 in each concentrator unit 1 to adjust its angle. The angle adjustments of the concentrators 104 in each concentrator unit 1 do not affect each other.

[0030] Furthermore, the collector tubes 102 of multiple concentrating solar collector units 1 are connected in series in the collector header 106 to form the working medium flow channel of the collector. The working medium enters the flow channel from the working medium inlet / outlet 107 on one side of the collector, and then enters the U-shaped heat-absorbing metal tube in the collector tube 102. After being heated step by step, it flows out from the working medium inlet / outlet 107 on the other side of the collector, thereby increasing the temperature of the working medium and ultimately generating high-temperature steam (or other high-temperature working medium).

[0031] The concentrating heat collection unit 1 also includes a fixed tripod 103; several fixed tripods 103 are equally spaced on the concentrating plate 104, and the two ends of the fixed tripod 103 are fixedly connected to the concentrating plate 104; the other end of the fixed tripod 103 is fixedly connected to the drive shaft 101; the heat collection tube 102 is placed at the center of the fixed tripod 103.

[0032] Each heat collection pipe 102 is connected to the open end of the heat collector manifold 106.

[0033] The collector tube 102 is a solar vacuum tube with a built-in U-shaped tube array.

[0034] In one embodiment of the present invention, the main function of the solar vacuum tube with built-in U-shaped tube is to absorb solar radiation and transfer heat to the built-in U-shaped tube; the open end of the solar vacuum tube with built-in U-shaped tube is inserted into the collector manifold 106; the closed end is supported and fixed by the fixing bracket 9.

[0035] The light-concentrating plate 104 is a linear Fresnel light-concentrating plate, and its light-concentrating structure is located at the bottom of the light-concentrating plate 104; several reinforcing ribs 105 are also arranged on the light-concentrating plate 104.

[0036] In one embodiment of the present invention, the concentrator 104 is located above the collector tube 102. Its function is to "line focus" the parallel sunlight that shines on its own plane downwards, focusing the light onto the collector tube 102, so as to increase the solar radiation utilization area and increase the solar irradiance, so that the working medium can reach a higher temperature and ultimately generate steam.

[0037] In one embodiment of the present invention, the collector manifold 106 is provided with an inlet / outlet 107; the working medium enters the flow channel from the inlet / outlet 107 on one side, and then enters each series of U-shaped pipes. After being heated step by step, it flows out from the inlet / outlet 107 on the other side, thereby realizing the temperature increase of the working medium.

[0038] In one embodiment of the present invention, "reflective concentrators" are widely used, such as trough-type, dish-type, and tower-type reflective concentrators. The most mature trough-type high-temperature solar thermal technology is large in size, can only perform horizontal fixed-axis one-dimensional tracking, and its efficiency is difficult to improve. The large-area curved reflector is difficult to clean and maintain, its straight-through vacuum glass heat collection tube has a high damage rate, and the heat transfer oil used costs tens of thousands of yuan per ton, which is expensive. It is a mature but not ideal product. The power generation efficiency of tower-type is still relatively low, and the dish-type is still in the experimental stage. Their common drawbacks are: 1. Low efficiency: Since reflective concentrators are front-focus concentrators, the collector is suspended between the concentrator and the light source, partially blocking the valuable concentrating area. Furthermore, it is inconvenient to perform three-dimensional tracking (especially for trough concentrators), resulting in an efficiency of less than 30%. 2. Large footprint: Due to the low efficiency, a large land area is required to install a huge concentrator array, with each kilowatt of power generation capacity occupying 78 square meters. 3. High cost. 4. Inconvenient for distributed use: Due to the large size of the equipment, it can only collect energy centrally, convert it inefficiently into electricity, and then transmit it remotely. It is impossible to provide efficient point-to-point direct heat energy supply to dispersed thermal application equipment.

[0039] Furthermore, this application employs a linear Fresnel concentrator plate to receive solar energy at a high magnification using a refractive concentrating method, thereby increasing the energy flux density of solar energy to achieve high-temperature collection. A Fresnel lens is a lightweight and thin flat-panel lens, belonging to the field of microstructure optical thin-film technology. It is a "back-focus" type concentrator, whose advantage is that the focal point or focal line is behind the light source and the lens, which greatly facilitates the installation of the solar collector and the implementation of insulation measures. Due to its lightweight and thinness, its support structure and tracking system can be made simple, compact, and easy to implement, enabling three-dimensional real-time tracking of the sun to maximize the acquisition of solar energy. Simultaneously, it facilitates the miniaturization and lightweighting of the equipment, allowing it to be combined into large-scale arrays for large-scale industrial applications or centralized heating and power supply, or made into smaller systems for convenient local heating and power supply to households or dispersed users.

[0040] In one embodiment of the present invention, the collector manifold 106 in this device is a fully sealed stainless steel welded assembly, and the inner liner is made of SUS304# corrosion-resistant stainless steel, which can withstand a pressure of 0.8 to 2.5 MPa, ensuring that the system will not leak for a long time.

[0041] The collector manifold 106 is filled with insulation material.

[0042] It is also equipped with a wind speed meter 10 and a GPS locator 11; the wind speed meter 10 and the GPS locator 11 are electrically connected to the DC geared motor 3 and the circumferential geared motor 6, respectively.

[0043] In one embodiment of the present invention, the main wind-receiving surface concentrating lens of the concentrating solar collector unit 1 is arranged separately according to the number of vacuum tubes, and its wind-receiving surface is relatively small; transparent reinforcing ribs 105 are arranged at intervals on the Fresnel concentrating lens to increase the strength of the concentrating lens; the height difference of the concentrating plates 104 in adjacent concentrating solar collector units 1 is inconsistent, and the concentrating solar collector units 1 are arranged in an alternating manner of "high difference" and "low difference", which can allow wind energy to pass through the collector effectively and effectively reduce the resistance of the collector; through the above settings, the device has better wind resistance performance and can resist typhoons.

[0044] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0045] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A fully automatic tracking anti typhoon type solar high temperature steam system, characterized in that, The utility model relates to a kind of solar energy concentrator, including: Several light-gathering heat collection units (1), the light-gathering plate (104) in each light-gathering heat collection unit (1) is tracked to the sun; Several light-gathering heat collection units (1) are arranged to form light-gathering array;The light-gathering array is fixedly installed on arc ring beam pedestal (8) by fixed support (9);Photovoltaic panel (4) is installed in the peripheral region of the light-gathering array;Arc rack (5) is also fixedly installed at the bottom of the arc ring beam pedestal (8);The arc rack (5) is drivingly connected with circumferential speed reducer motor (6);The arc rack (5) is driven by the circumferential speed reducer motor (6), the arc rack (5) drives the arc ring beam pedestal (8) to make circumferential motion by meshing, in turn drives the light-gathering array to make circumferential motion, and the sun azimuth is tracked; Driving shaft (101) in each light-gathering heat collection unit (1) is connected with driving steel wire (2);The driving steel wire (2) is placed on one side of the light-gathering heat collection unit (1);The driving steel wire (2) is drivingly connected with the output shaft of direct-current speed reducer motor (3);Driving shaft (101) is drivingly installed on the driving steel wire (2); Each light-gathering heat collection unit (1) includes heat collection tube (102) and light-gathering plate (104);The light-gathering plate (104) is located above the heat collection tube (102);The light-gathering plate (104) in adjacent light-gathering heat collection unit (1) is different in height, and is arranged in continuous wave shape; The light-gathering heat collection unit (1) further includes fixed tripod (103);Several fixed tripods (103) are equidistantly arranged on the light-gathering plate (104), and the two end points of the fixed tripod (103) are fixedly connected with the light-gathering plate (104);The other end point of the fixed tripod (103) is fixedly connected with the driving shaft (101);The heat collection tube (102) is placed in the center of the fixed tripod (103); The opening end of each heat collection tube (102) is connected with heat collector header (106); The heat collection tube (102) is solar vacuum tube with built-in U-shaped row pipe; The built-in U-shaped row pipe in the heat collection tube (102) is connected in series in heat collector header (106); Wind speed detector (10) and GPS locator (11) are further provided;The wind speed detector (10) and GPS locator (11) are electrically connected with the direct-current speed reducer motor (3) and circumferential speed reducer motor (6) respectively.

2. The fully automatic tracking anti typhoon type solar high temperature steam system according to claim 1, characterized in that: The light-gathering plate (104) is linear fresnel light-gathering plate, and its light-gathering structure is located at the bottom of the light-gathering plate (104);Several reinforcing ribs (105) are further arranged on the light-gathering plate (104).

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