TWI614466B - Penetrating reflective curved glass collecting device - Google Patents

Abstract

A penetrating reflection type curved glass collecting device is used for collecting the full spectrum of solar energy, and simultaneously performing solar photoelectric conversion and photothermal effect, which comprises a frame body; a vacuum heating tube is disposed on the frame body; and a special coating film The curved glass is disposed on the frame body and opposite to the vacuum heating tube; and a solar panel is disposed under the curved glass. Therefore, the present invention mainly utilizes a special coated curved glass, which has a visible light band (400-800 nm) penetration and an infrared light band (800-2500 nm) reflection characteristic, and collects a full spectrum of solar energy from a special coated curved glass to penetrate in the visible light band. To the glass bottom solar panel, photoelectric conversion, the infrared light band is focused by the curved glass to focus on the vacuum heating tube, and the photothermal effect is used to heat the heat transfer fluid in the tube to facilitate subsequent energy storage, and the efficiency is much greater than the single solar photovoltaic and photothermal conversion efficiency. It can effectively improve the solar light collection efficiency and solve the problem of low efficiency of single solar photovoltaic and photothermal conversion, and can reduce the cost of solar power generation and popularization of applications, and has great advantages for subsequent energy storage.

Description

Penetrating reflective curved glass collecting device

The invention relates to a transflective curved glass concentrating device, in particular to a solar photovoltaic conversion and photothermal effect, in particular to effectively improve solar concentrating efficiency and solve single solar photovoltaic and photothermal conversion efficiency problems. It can also reduce the cost of solar power generation and popularize the application.

At present, solar energy full spectrum light collecting methods and devices can be mainly divided into two categories, one of which is a solar panel using a photoelectric conversion method, such as a single crystal germanium, a polycrystalline germanium, a compound type, and a thin film solar panel, and the other is a light source. The thermal effect solar concentrating device mainly uses a metal mirror to focus the sunlight reflection on a heating device, such as the domestic new patent 545519 "solar concentrating structure", which is a solar concentrating structure, mainly having a plurality of parallel arranged sets. The light collecting and heating unit, each of the light collecting and heating units is provided with a vacuum tube of the same center in a long arc-shaped arc reflecting plate, and a heat collecting plate is further provided in each vacuum tube (as shown in the first and second figures), In this way, only a single solar photothermal effect can be performed, and there is no solar photoelectric conversion method and device. Foreign related solar concentrating methods include US4178913 "SOLAR COLLECTOR SYSTEM" (see Figure 1), US4243019 "LIGHT-WEIGHT-TROUGH TYPE SOLARABSTRACT CONCENTRATOR SHELL" (see Figures 1-4), US4278829"SOLAR ENERGY CONVERSION APPARATUS" (see Figure 2), US4515148 "CYLINDRO-PARABOLICAL SOLAR ENERGY COLLECTOR" (see Figure 1), US7240675 "PARABOLIC TROUGH COLLECTOR" (see Figure 1), US20120174910"SOLAR FIELD AND METHOD FOR ASSEMBLING THE SOLAR FIELD" (see Figure 1), and IJETAE Journal of Solar and Light Devices (B. Sadhana, LSV Prasad, G. Satyanand, "Design Aspects of Cylindrical Parabolic Concentrator for Sterilization", International Journal of Emerging Technology and Advanced Engineering, Vol. 4, No. 8, pp. 203-209, 2014. See Figure 1); the above-mentioned foreign patents also improve the method and apparatus for solar thermal effects. In view of the future energy trend of solar power generation systems, the main function is to convert light energy into electrical energy, and the incident light must be incident perpendicularly to the solar panel to achieve better photoelectric conversion efficiency. However, in terms of the current solar photovoltaic conversion efficiency, the efficiency of single crystal germanium, polycrystalline germanium, compound type and thin film solar cells is about 20-30, which is bound to seek higher power generation efficiency methods, which is enough to reduce power generation costs. And the popularity of the application. Therefore, the user-like users cannot meet the needs of the user in actual use.

The main object of the present invention is to overcome the above problems encountered in the prior art and to provide a transflective curved glass collecting device which has both solar photoelectric conversion and photothermal effects and is advantageous for subsequent energy storage. A secondary object of the present invention is to provide a transflective curved glass concentrating device that improves solar concentrating efficiency and solves the problem of single solar photovoltaic and low photothermal conversion efficiency. Another object of the present invention is to provide a transflective curved glass collecting device which reduces the cost of solar power generation and is widely used. For the purpose of the above, the present invention is a transflective curved glass concentrating device for collecting the full spectrum of solar energy, and simultaneously performing solar photoelectric conversion and photothermal effects, including: a frame body; a vacuum heating tube, Provided in the frame body for supplying a heat transfer fluid to the vacuum heating tube; a special coated curved glass is disposed on the frame body, and opposite to the vacuum heating tube, has visible light band penetration and The infrared light band reflection characteristic can collect the full spectrum of the solar energy, and focus the solar infrared light band reflection on the vacuum heating tube, and perform the photothermal effect heating the heat transfer fluid in the tube to facilitate subsequent energy storage, wherein the visible light band range is 400 to 800 nm, and the infrared light band ranges from 800 to 2500 nm; and a solar panel is disposed under the curved glass for receiving a solar visible light band penetrating the curved glass bottom layer, and performing photoelectric effect to light energy Direct conversion to electrical energy for subsequent energy storage. In the above embodiment of the invention, the curved glass is a parabolic reflecting glass. In the above embodiment of the invention, the vacuum heating tube is located at the parabolic focus of the curved glass. In the above embodiment of the present invention, the solar panel may be disposed on a support structure for causing the solar panel to rotate properly, and the curved glass may be synchronously rotated by the solar panel. In the above embodiment of the present invention, the vacuum heating tube comprises a heat collecting tube through which the heat transfer fluid passes and absorbs solar heat energy, and a light-tight insulating tube with high airtightness and vacuum insulation, and the transparent heat insulating tube The light-insulating tube is coated on the outer side of the heat collecting tube. In the above embodiment of the present invention, the material of the heat collecting tube is a metal material having good thermal conductivity. In the above embodiment of the present invention, the light-transmissive heat-insulating tube is composed of all transparent materials or partially transparent materials, and the transparent material is glass or acrylic. In the above embodiment of the present invention, the vacuum heating tube comprises a heat collecting black body that absorbs solar thermal energy, and a light transmitting tube through which the heat transfer fluid passes, and the heat collecting black body is located in the light transmitting tube. In the above embodiment of the invention, the material of the heat collecting black body is a metal material having good thermal conductivity. In the above embodiment of the present invention, the light-transmitting tube is composed of all transparent materials or partially transparent materials, and the transparent material is glass or acrylic.

Please refer to FIG. 1 and FIG. 2, which are schematic diagrams of glass for designing special coating and curvature of the present invention, and a schematic diagram of a transflective curved glass collecting device according to a first embodiment of the present invention. As shown in the figure: the present invention is a transflective curved glass concentrating device for collecting the full spectrum of solar energy, and simultaneously performing solar photoelectric conversion and photothermal effects, including a body 1, a vacuum heating tube 2, and a The specially coated curved glass 3, a solar panel 4, and a support structure 5 are formed. The vacuum heating tube 2 mentioned above extends along the focal line of the curved glass 3, and the vacuum heating tube 2 is fixed on the frame 1 connected to the curved glass 3, and is located on the paraboloid focus of the curved glass 3, It is used to supply a heat transfer fluid to the vacuum heating tube 2. In the present embodiment, the vacuum heating tube 2 includes a heat collecting tube 21 and a light transmissive heat insulating tube 22, and the light transmissive heat insulating tube 22 is coated on the outer side of the heat collecting tube 21, and the heat collecting tube 21 is The heat transfer fluid is passed through. Wherein, the heat collecting tube 21 is a metal tube capable of withstanding high temperature and high pressure and conducting heat, and the material thereof is a metal material with good thermal conductivity, such as copper, aluminum and the like, which can achieve the effect of heat conduction; and the light transmissive heat insulating tube 22 is The transparent material which is highly airtight and can be vacuum insulated can be composed of all transparent materials or partially transparent materials, and the transparent material is glass or acrylic. The curved glass 3 is disposed on the frame body 1 and opposite to the vacuum heating tube 2, the curved glass 3 is a parabolic reflecting glass having a parabolic shape and extending longitudinally, and has visible light band penetration and infrared light band reflection characteristics. It can collect the full spectrum of solar energy. The visible light band range is between 400 and 800 nm, and the infrared light band is between 800 and 2500 nm. The solar panel 4 is disposed under the curved glass 3 and is disposed on the supporting structure 5 for causing the solar panel 4 to rotate. The solar panel 4 can synchronously rotate the curved glass 3 according to the change of the sunshine position. If so, a new transflective curved glass collecting device is constructed by the above disclosed structure. In the present embodiment, the frame 1, the vacuum heating tube 2, the curved glass 3, together with the solar panel 4 form a unit that rotates about the axis of the vacuum heating tube 2 and thereby tracks the position of the sun uniaxially. When used, it mainly uses the special coated curved glass 3, which can transmit the sun into the sun by the visible light band penetration and the infrared light band reflection characteristics, and collect the solar full spectrum from the special coated curved glass 3 in the visible light band 400. ～800nm penetrates into the solar panel 4 of the glass bottom layer, and performs photoelectric conversion. The infrared light band 800～2500nm is reflected by the curved glass 3 and focused on the vacuum heating tube 2, and the photothermal effect heats the heat transfer fluid in the tube to facilitate subsequent operation. Energy storage. The vacuum heating tube 2 includes a heat collecting tube 21 which is surrounded by a light-transmitting heat insulating tube 22 along its length. A heat transfer fluid such as pure water, an aqueous solution or oil flows through the heat collecting tube 21 and is heated by absorbed solar thermal energy, and a space between the heat collecting tube 21 and the light transmissive insulating tube 22 is evacuated to minimize cooling by convection. The heat loss caused by the heat transfer fluid in the heat collecting tube 21. A heat transfer fluid can be extracted at the outlet end of the heat collecting tube 21 and supplied to a heat exchanger or other energy consuming device. Please refer to FIG. 3, which is a schematic view of a transflective curved glass collecting device according to a second embodiment of the present invention. As shown in the figure, the transflective curved glass collecting device of the present invention can be the structural form of the second embodiment in addition to the structural configuration of the first embodiment described above, and the difference is as shown in the figure. The vacuum heating tube 2 includes a heat collecting black body 23 and a light transmitting tube 24, and the heat collecting black body 23 is located in the light transmitting tube 24, and the heat transmitting fluid is passed through the light transmitting tube 24. The material of the heat collecting black body 23 is a metal material with good thermal conductivity, such as copper or aluminum, which can achieve the effect of heat conduction; and the light transmitting tube 24 can be a vacuum tube, which is made of all transparent materials or parts. It is composed of a transparent material, and the transparent material is glass or acrylic. When in use, the infrared light band is reflected by the curved glass 3 and focused on the vacuum heating tube 2, and the photothermal effect heats the heat transfer fluid in the tube. The process is performed by the heat collecting black body 23 to absorb the heat energy of the sunlight, so that the set The heat black body 23 itself is heated to heat the heat transfer fluid flowing in the light-transmitting tube 24, and the heat-collecting black body 23 is located in the light-transmitting tube 24, and the heat-transfer fluid surrounds the circumference thereof, so that the heat-blown body The heat collecting black body 23 has a relatively good heating effect on the heat transfer fluid. Moreover, the heat transfer loss of the heat transfer fluid in the light-transmitting tube 24 due to heat conduction and heat convection can be reduced by using the vacuum light-transmitting tube 24, and the temperature of the heat transfer fluid in the light-transmitting tube 24 is further increased to facilitate the subsequent energy source. Storage; thus, in addition to achieving the effects described in the first embodiment, the present invention is more suitable for practical use. Therefore, the present invention utilizes a special coated curved glass, which has a visible light band (400-800 nm) penetration and an infrared light band (800-2500 nm) reflection characteristic, and constructs a transflective curved glass light collecting device capable of simultaneously having solar energy. Photoelectric conversion and photothermal effect can effectively improve the solar light collection efficiency and solve the problem of low efficiency of single solar photovoltaic and photothermal conversion. It can also reduce the cost of solar power generation and popularize the application, and has great advantages for subsequent energy storage. In summary, the present invention is a transflective curved glass concentrating device, which can effectively improve various disadvantages of the conventional use, except that the solar cell absorbs the visible light of the wavelength of 400 nm to 800 nm, and directly converts the light energy into a photoelectric effect. In addition to electric energy, it also adds the solar thermal effect of sunlight, and focuses the infrared spectrum of the solar spectrum from 800 nm to 2500 nm to the vacuum heating tube to facilitate subsequent energy storage. The efficiency is much greater than that of single solar photovoltaic and photothermal conversion efficiency, which can effectively improve solar energy collection. The light efficiency solves the problem of low efficiency of single solar photovoltaic and photothermal conversion, and can reduce the cost of solar power generation and popularization of the application, and has great advantages for subsequent energy storage, thereby making the invention of the invention more progressive, more practical and more suitable for use. The person must have met the requirements of the invention patent application and filed a patent application according to law. However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto; therefore, the simple equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the invention are modified. All should remain within the scope of the invention patent.

1‧‧‧Body 2‧‧‧Vacuum heating tube 21‧‧‧Heating tube 22‧‧‧Light-transmissive tube 23‧‧‧Heather black body 24‧‧‧Light tube 3‧‧‧Bending glass 4‧ ‧‧Solar panels 5‧‧‧Support structure

Fig. 1 is a schematic view showing a special coating film and a curvature design glass of the present invention. Fig. 2 is a schematic view showing a transflective curved glass collecting device according to a first embodiment of the present invention. Fig. 3 is a schematic view showing a transflective curved glass collecting device according to a second embodiment of the present invention.

1‧‧‧ frame

2‧‧‧Vacuum heating tube

21‧‧‧ collector tube

22‧‧‧Transparent insulated pipe

3‧‧‧Bending glass

4‧‧‧ solar panels

5‧‧‧Support structure

Claims (10)

A transflective curved glass concentrating device is used for collecting the full spectrum of solar energy, and simultaneously performing solar photoelectric conversion and photothermal effects, comprising: a frame body; a vacuum heating tube is disposed on the frame body for a heat transfer fluid flows through the vacuum heating tube; a special coated curved glass is disposed on the frame body, and opposite to the vacuum heating tube, has visible light band penetration and infrared light band reflection characteristics, and can collect solar energy Full spectrum, focusing the solar infrared band reflection on the vacuum heating tube, and performing the photothermal effect heating the heat transfer fluid in the tube for subsequent energy storage, wherein the visible light band range is between 400 and 800 nm, and the infrared light band The range is between 800 and 2500 nm; and a solar panel is disposed under the curved glass for receiving the visible light band of the solar energy penetrating the bottom layer of the curved glass, and performing photoelectric effect to directly convert the light energy into electrical energy for the subsequent energy source. Store. The transflective curved glass collecting device according to claim 1, wherein the curved glass is a parabolic reflecting glass. The transflective curved glass concentrating device according to claim 1, wherein the vacuum heating tube is located at a paraboloid focus of the curved glass. The transflective curved glass collecting device according to claim 1, wherein the solar panel can be disposed on a supporting structure for causing the solar panel to rotate properly, and the solar panel can be changed with the position of the sun. The curved glass is rotated synchronously. The transflective curved glass collecting device according to claim 1, wherein the vacuum heating tube comprises a heat collecting tube through which the heat transfer fluid passes and absorbs solar thermal energy, and is highly airtight and The light-insulating heat-insulating tube is vacuum-insulated, and the light-transmissive heat-insulating tube is coated on the outer side of the heat collecting tube. The transflective curved glass collecting device according to claim 5, wherein the material of the heat collecting tube is a metal material having good thermal conductivity. The transflective curved glass collecting device according to claim 5, wherein the transparent insulating tube is made of all transparent materials or partially transparent materials, and the transparent material is glass or acrylic force. The transflective curved glass collecting device according to claim 1, wherein the vacuum heating tube comprises a collecting black body for absorbing solar thermal energy, and a light transmitting tube for passing the heat transfer fluid. And the heat collecting black body is located in the light transmitting tube. The transflective curved glass concentrating device according to claim 8, wherein the material of the heat collecting black body is a metal material having good thermal conductivity. The transflective curved glass concentrating device according to claim 8, wherein the light transmissive tube is composed of all transparent materials or partially transparent materials, and the transparent material is glass or acryl.