Solar semi-shielding type thermal drive automatic tracking device

[0030] Example 1

[0031] Such as figure 1 , Figure 4 , Figure 5 As shown, a first heat collecting tube 1 is provided at the focal line position of the first parabolic concentrating groove 2, an opening 19 is provided at the center of the first parabolic concentrating groove 2, and a second parabolic concentrating tube is provided at the opening 19 The groove 12 is provided with a second heat collecting tube 14 at the focal line of the second parabolic concentrating groove 12, and the sunlight radiating from the rear and side of the second parabolic concentrating groove 12 to the second heat collecting tube 14 is collected by the first The heat pipe 1 and the second parabolic concentrating groove 12 are all shielded, and the sunlight from the front and side front of the second parabolic concentrating groove 12 to the second heat collecting tube 14 is focused on the second heat collecting tube 14, from the first collector The sunlight directed to the second collector tube 14 in the direction of the heat pipe 1 is partially blocked, the axis of the second parabolic concentrating groove 12 is parallel to the axis of the first parabolic concentrating groove 2, and the opening of the second parabolic concentrating groove 12 is The opening of a parabolic condensing trough 2 is perpendicular, and an expansion tube 13 is provided inside the second heat collecting tube 14. The inner cavity of the expansion tube 13 is connected to the inner cavity of the hydraulic cylinder 9 through the pressure guiding tube 8. The inner cavity of the pressure guiding tube 8 and the hydraulic cylinder 9 is filled with a thermal expansion fluid medium 15. One end of the hydraulic cylinder 9 is connected with the second bracket 10, and the other end of the hydraulic cylinder 9 is connected with the rotating device 5, and the rotating device 5 is fixed in On the rotating shaft 4, the first heat collecting tube 1, the first parabolic concentrating groove 2, the second heat collecting tube 14 and the second parabolic concentrating groove 12 are all fixed on the rotating shaft 4 through the first bracket 3, and the rotating shaft 4 is mounted on On the second support 10.

[0032] The expansion tube 13 and the rotating shaft 4 are integrated. The rotating shaft 4 is a hollow shaft with one end closed and a pressure relief valve 7 installed on the other end. The rotating device 5 and the pressure guiding tube 8 are integrated, and the rotating device 5 is hollow. The pipe, the piston rod of the rotating device 5 and the hydraulic cylinder 9 have channels for fluid flow. The pressure guiding tube 8 and the inner cavity of the piston rod are interconnected and can be rotated at the joint. The inner cavity of the piston rod and the hydraulic cylinder The cavities of 9 are also interconnected.

[0033] The second heat collection tube 14 and the expansion tube 13 are separated. A heat transfer medium 16 is filled between the inner wall of the second heat collection tube 14 and the outer wall of the expansion tube 13, and corks are provided at the ports at both ends of the second heat collection tube 14 Or the rubber plug 11. A temperature compensation adjusting device (26) is installed on the expansion pipe (13), and the temperature compensation adjusting device (26) is a position adjustable piston.

[0034] The two ends of the rotating shaft 4 are connected to the second bracket 10 in a way that the second bracket 10 is fixed at one end and the other end is telescopic. The bottom of the telescopic support is connected to the base by a rotating shaft 18, which is telescopic. The way is realized by the screw mechanism 17.

[0035] The first parabolic concentrating trough 2 is placed in the north-south direction and rotating in the east-west direction. There is only one first parabolic concentrating trough 2.

[0036] Example 2

[0037] Such as figure 1 , Figure 4 , Figure 5 As shown, on the basis of embodiment 1, the rotating device 5 is changed to a hollow turntable, the connection between the two ends of the rotating shaft 4 and the second bracket 10 is changed to sliding sleeve connection, and the second bracket 10 is changed to a fixed type at both ends. Yes, the bottom of the second bracket 10 is fixed on the foundation.

[0038] The first parabolic concentrating trough 2 is placed in an east-west direction and rotating in a north-south direction. There are 12 first parabolic concentrating troughs 2, and 4 of them are connected in series to form an array. A total of 3 rows form an array.

[0039] Example 3

[0040] Such as figure 2 , Figure 4 , Figure 5 As shown, on the basis of Example 1, the rotating device 5 and the pressure guiding tube 8 are changed to a separate type. The rotating device 5 is a solid turntable. A small hole is opened on the rotating shaft 4 and a guide is installed at the small hole. The pressure hose is connected with the hydraulic cylinder.

[0041] The two ends of the rotating shaft 4 are connected to the second bracket 10 in a manner of connecting through a bearing 6. The second bracket 10 has one end fixed and one end telescopic, and the bottom of the second bracket 10 is fixed on the foundation. A temperature compensation adjusting device (26) is installed on the hydraulic cylinder (9), and the temperature compensation adjusting device (26) is a manual hydraulic pump.

[0042] The first parabolic concentrating trough 2 is placed in the east-west direction and rotating in the north-south direction. There is only one first parabolic concentrating trough 2.