A kind of bilinear focusing type focal length adjustable solar energy collector

Abstract

The application relates to a kind of bilinear focusing type focal length adjustable solar energy collector. It is composed of collector frame, bilinear light collecting plate, alternate heat supply type heat collecting pipe, heat collecting pipe clamp, floating support beam, washer, butterfly nut and bolt, wherein the bilinear light collecting plate is installed on the top of the collector frame, two floating support beams are installed on the middle of the left and right ends of the collector frame through the washer and butterfly nut, each floating support beam is installed with two heat collecting pipe clamps through the washer, butterfly nut and bolt, and the heat collecting pipe clamps on the two floating support beams are opposite to each other, two alternate heat supply type heat collecting pipes are installed in the heat collecting pipe clamps, and the installation positions of the floating support beam and heat collecting pipe clamp can be adjusted through the butterfly nut and washer, so as to ensure that the focusing focal line is completely shot into the alternate heat supply type heat collecting pipe.

Description

I. Technical Field

[0001] This invention belongs to the field of renewable energy development and utilization, and specifically relates to a bilinear focusing type adjustable focal length solar collector. II. Background Technology

[0002] In existing technologies, most solar air dryers use flat-plate solar air collectors, which have low heat collection efficiency. Current focusing solar air collectors focus the heating of the air drying medium. The focusing plate uses a single linear focusing form, and there are certain shadow areas between the focusing plates. The structure between the focusing plate and the absorber is fixed, so the installation accuracy is very high, and it is not convenient to replace the focusing plate with a different focal length. III. Summary of the Invention

[0003] The purpose of this invention is to overcome the above-mentioned defects and provide a dual-linear focusing type adjustable focal length solar collector, which can effectively reduce the shadow shading area between the concentrators, increase the effective light-collecting area, and at the same time, use concentrators with different focal lengths, correct focal length errors, and is easy to install and adjust.

[0004] The technical solution of the present invention:

[0005] A dual-linear focusing type adjustable focal length solar collector comprises a collector frame, a dual-linear concentrator, alternating heating collector tubes, collector tube clamps, floating support beams, washers, wing nuts, and bolts. The dual-linear concentrator is mounted on the top of the collector frame. Two floating support beams are mounted at the middle of the left and right ends of the collector frame via washers and wing nuts. Each floating support beam has two collector tube clamps mounted on it via washers, wing nuts, and bolts. The collector tube clamps on the two floating support beams are directly opposite each other, and the two alternating heating collector tubes are installed within their respective clamps. The dual-linear concentrator uses a refractive linear focusing method with two focusing refractive focal lines. The collector frame itself has four columns with grooves, allowing the floating support beams to move up and down within these grooves. The floating support beams also have grooves, allowing the collector tube clamps mounted on them to move back and forth within these grooves via bolts. The installation positions of the floating support beam and the heat collection tube clamps can be adjusted using wing nuts and washers. Based on the different focal lengths of the dual linear concentrators, the two alternating heating heat collection tubes are placed at the two focal lines. The focal length error and focal line offset error caused by the manufacturing of the dual linear concentrators are corrected, thereby ensuring that the two focal lines generated by the dual linear concentrators are completely injected into the light energy absorption cavity of the two alternating heating heat collection tubes. IV. Description of the attached drawings:

[0006] Figure 1 3D view of a bilinear focusing type adjustable focal length solar collector

[0007] Figure 2 Partial cross-sectional view of the solar collector

[0008] Figure 3 Front view of the solar collector

[0009] Figure 4 Top view of the solar collector

[0010] Figure 5 3D view of the solar collector frame

[0011] Figure 6 3D diagram of floating support beam

[0012] In the attached diagram: 1 is the collector frame, 2 is the bilinear concentrating plate, 3 is the alternating heating collector tube, 4 is the collector tube clamp, 5 is the floating support beam, 6 is the washer, 7 is the wing nut, and 8 is the bolt. V. Detailed Implementation Methods

[0013] A dual-linear focusing type adjustable focal length solar collector is composed of a collector frame (1), a dual-linear concentrating plate (2), an alternating heating collector tube (3), collector tube clamps (4), floating support beams (5), washers (6), wing nuts (7), and bolts (8). The dual-linear concentrating plate (2) is installed on the top of the collector frame (1). Two floating support beams (5) are installed at the middle of the left and right ends of the collector frame (1) through washers (6) and wing nuts (7). Two collector tube clamps (4) are installed on each floating support beam (5) through washers (6), wing nuts (7), and bolts (8). At the same time, the collector tube clamps (4) on the two floating support beams (5) are facing each other. Two alternating heating collector tubes (3) are installed in the collector tube clamps (4). The dual-linear concentrator (2) focuses in a linear refracting manner, with two focal lines. The collector frame (1) has four columns with grooves, and the floating support beam (5) can move up and down within the grooves. The floating support beam (5) has its own grooves, and the collector tube clamps (4) mounted on it can move back and forth within the grooves via bolts (8). The installation positions of the floating support beam (5) and the collector tube clamps (4) can be adjusted using butterfly nuts (7) and washers (6). Based on the dual-linear concentrator (2) with different focal lengths, two alternating heating collector tubes (3) are placed at the two focal lines, and the focal length error and focal line offset error caused by the manufacturing of the dual-linear concentrator (2) are corrected, thereby ensuring that the two focal lines generated by the dual-linear concentrator (2) are completely injected into the light energy absorption cavity of the two alternating heating collector tubes (3).

[0014] During operation, when there is sufficient sunlight during the day, the sunlight is concentrated by the bilinear concentrator (2) to form two concentrating focal lines, which are then directed into the light energy absorption cavity inside the alternating heating collector tube (3) located at the position of the two concentrating focal lines. When using concentrators with different focal lengths and correcting for focal length errors, the installation positions of the floating support beam (5) and the collector tube clamp (4) can be adjusted using the wing nut (7) and washer (6) to ensure the focal length position required for normal concentrating operation. Inside the light energy absorption cavity inside the alternating heating collector tube (3), the incoming sunlight is absorbed and converted into heat. The air flowing inside carries away the heat. At the same time, another cavity inside the alternating heating collector tube (3) is the heat storage oil heat exchange cavity, where heat storage oil flows, absorbing and carrying away a portion of the solar heat energy to the heat storage oil tank. When it is night or when there is insufficient sunlight, the heat storage oil in the heat storage tank is recirculated into the heat storage oil heat exchange chamber, transferring the heat energy in the heat storage tank to the air flowing in the light energy absorption chamber, thereby providing hot air for drying without interruption day and night.

Claims

1. A dual-linear focusing type adjustable focal length solar collector, characterized in that... The system consists of a collector frame (1), a double linear concentrator plate (2), alternating heating collector tubes (3), collector tube clamps (4), floating support beams (5), washers (6), wing nuts (7), and bolts (8). The double linear concentrator plate (2) is installed on the top of the collector frame (1). Two floating support beams (5) are installed at the middle of the left and right ends of the collector frame (1) via washers (6) and wing nuts (7). Each floating support beam (5) has two collector tube clamps (4) installed on it via washers (6), wing nuts (7), and bolts (8). The collector tube clamps (4) on the two floating support beams (5) are directly opposite each other. The two alternating heating collector tubes (3) are installed inside the collector tube clamps (4). The heat exchanger frame (1) has four columns with grooves, and the floating support beam (5) can move up and down in the grooves. The floating support beam (5) has grooves, and the heat collection tube clamp (4) installed on it can move back and forth in the grooves by bolts (8). The installation positions of the floating support beam (5) and the heat collection tube clamp (4) can be adjusted by using a butterfly nut (7) and a washer (6). According to the different focal lengths of the dual linear concentrating plate (2), the two alternating heating heat collection tubes (3) are placed at the two focal lines, and the focal length error and focal line offset error caused by the manufacturing of the dual linear concentrating plate (2) are corrected, so as to ensure that the two focal lines generated by the dual linear concentrating plate (2) are completely injected into the light energy absorption cavity of the two alternating heating heat collection tubes (3).

2. The dual-linear focusing type adjustable focal length solar collector according to claim 1, characterized in that: The dual linear focusing plate (2) has a focusing form of refractive linear focusing, and the number of focusing refractive focal lines is 2.

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