Novel groove type solar thermal collector

Abstract

The utility model discloses a novel groove type solar thermal collector which comprises a support, a reflecting mirror and a thermal collecting pipe, a rack is fixedly connected inside the support and located above the reflecting mirror, and a shell is connected outside the rack in a sliding mode. Belongs to the technical field of solar heat collectors. According to the novel groove type solar heat collector, a servo motor rotates forwards, a brush plate is driven by a gear and a rack to get close to a collecting box, so that a reflecting mirror is automatically cleaned through the brush plate, cleaned sundries are pushed into the collecting box, and at the moment, a sliding rod is located in a long groove below a sliding groove; when the sliding rod enters the long groove above the sliding groove through the first fixing block, the brush plate moves upwards and is separated from the reflecting mirror, so that when the brush plate moves back, the reflecting mirror is not cleaned any more, and cleaned sundries are only concentrated on the same side of the support; and a worker only needs to treat the cleaned sundries on one side of the reflecting mirror, and does not need to run on two sides, so that the operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of solar thermal collectors, and more specifically to a novel trough type solar thermal collector. Background Art

[0002] A trough solar collector is a device that absorbs solar radiation and transfers the generated heat energy to a heat transfer medium. It is a key component of various medium and high temperature solar thermal utilization systems. The reflector is formed by a focusing trough parabola, and the collector tube is located on the focal line of the parabola. The heliostat system is used to ensure that the reflector is accurately aimed at the sun and reflects sunlight onto the collector tube.

[0003] Due to the curved shape of the reflector of the trough solar collector, dust, leaves and other debris are easily present on the upper surface of the reflector. These debris will affect the use effect of the reflector and it is inconvenient to clean them manually. Some trough solar collectors will have a brush plate on the upper surface of the reflector to automatically clean the debris. However, the brush plate is fitted with the reflector. When the brush plate moves back and forth, the debris on the reflector is also pushed to both sides of the reflector. The reflector as a whole is also relatively wide, so the staff needs to deal with the debris on one side first, and then go to the other side to deal with it, which is inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide a new type of trough solar collector to solve the problems raised in the above background technology:

[0005] Due to the curved shape of the reflector of the trough solar collector, dust, leaves and other debris are easily present on the upper surface of the reflector. These debris will affect the use effect of the reflector and it is inconvenient to clean them manually. Some trough solar collectors will have a brush plate on the upper surface of the reflector to automatically clean the debris. However, the brush plate is fitted with the reflector. When the brush plate moves back and forth, the debris on the reflector is also pushed to both sides of the reflector. The reflector as a whole is also relatively wide, so the staff needs to deal with the debris on one side first, and then go to the other side to deal with it, which is inconvenient.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A novel trough-type solar thermal collector comprises a bracket, a reflector and a heat collecting tube, wherein a rack is fixedly connected inside the bracket and located above the reflector, a housing is slidably connected to the outside of the rack, a servo motor is fixedly connected to the outside of the housing, a gear is rotatably connected to the inside of the housing, the gear is fixedly connected to the output end of the servo motor, the rack is meshed with the gear, the gear is driven forward and reversely by the servo motor, and the housing moves back and forth in coordination with the rack, a fixing rod is fixedly connected to the bottom of the housing, a sleeve is provided on the outside of the fixing rod, and the fixing rod is fixedly connected to the bottom of the housing. The sleeve is slidably connected to the fixed rod, the bottom of the sleeve is fixedly connected with a sleeve, the inside of the sleeve is slidably connected with a sliding rod, the outside of the sliding rod is fixedly connected with a blocking piece, the outside of the sliding rod is provided with a spring between the sleeve and the blocking piece, the elastic force of the spring drives the sliding rod to always press against the inner wall of the sliding groove through the blocking piece, the bottom of the sleeve is fixedly connected with a brush plate, the outside of the bracket is fixedly connected with a fixing plate, a sliding groove is provided on the side of the fixing plate close to the sliding rod, the sliding groove is used in conjunction with the sliding rod, the sliding rod extends to the inside of the sliding groove, so that the sliding rod slides in the sliding groove.

[0008] Preferably, the slide groove is a parallelogram structure, and the slide groove of the parallelogram structure is composed of four parts, two upper and lower long grooves and two left and right inclined grooves. When the slide rod is in the upper long groove, the brush plate is separated from the reflector, and when the slide rod is in the lower long groove, the brush plate is in a state of being in contact with the reflector.

[0009] Preferably, the interior of the slide groove is fixedly connected with a first fixed block, the cross-section of the first fixed block is a right-angled triangle structure, the first fixed block is located in the two oblique grooves of the slide groove, and is point-symmetrically distributed. The first fixed block is used to ensure that the slide rod will not move back when entering the upper long groove from the lower long groove, or when entering the lower long groove from the upper long groove.

[0010] Preferably, a collection box is provided on the inner side of the bracket and below the reflector, and an insertion rod is fixedly connected to one side of the collection box. There are two insertion rods in total, and the two insertion rods are symmetrically distributed. A slot is provided inside the bracket, and the slot is used in conjunction with the insertion rod. The collection box is used to collect debris cleaned up by the brush plate. The collection box is installed and fixed between the bracket and the slot on the bracket through the insertion rod on one side. The insertion rod and the slot are both inclined to prevent the collection box from loosening and falling.

[0011] Preferably, a groove is provided inside the bracket, and a second fixing block is fixedly connected inside the groove, and the cross-section of the second fixing block is an isosceles triangle structure. Since the reflector is distributed as a whole on both sides of the bracket, the upper surface of the bracket will be cleaned when the brush plate cleans the upper surface of the reflector, and the debris on the reflector can fall directly into the collection box, while the debris on the bracket may accumulate. In order to ensure that the debris on the bracket can also fall into the collection box smoothly, a groove is provided on the upper surface of the bracket inside the bracket, so that the brush plate can push the debris into the groove, and then use the second fixed block in the groove to guide the flow, so that the debris finally falls into the collection box.

[0012] Preferably, limiting grooves are provided on the corresponding two side edges of the rack, the limiting grooves are internally slidably connected to limiting blocks, and the limiting blocks are fixedly connected to the outer shell. The limiting grooves and the limiting blocks are used to limit the outer shell and the rack to prevent the outer shell from separating from the rack.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1) When the novel trough type solar collector is in use, the servo motor rotates forward, and drives the brush plate to approach the collection box through the gear and rack, so that the reflector is automatically cleaned by the brush plate, and the cleaned debris is pushed into the collection box. At this time, the slide bar is located in the lower long groove of the slide slot. When the slide bar passes through the first fixed block and enters the upper long groove of the slide slot, the brush plate will move upward and separate from the reflector. The servo motor reverses and drives the brush plate away from the collection box. Since the brush plate has been separated from the reflector, the reflector will not be cleaned when the brush plate moves back, so that the cleaned debris will only be concentrated on the same side of the bracket. The staff only needs to deal with the cleaned debris on one side of the reflector, without running between the two sides, which is more convenient.

[0015] 2) When the new trough type solar collector is in use, the debris cleaned by the brush plate is collected in a centralized manner through a collection box to prevent the debris from falling directly to the ground, making it convenient for the staff to handle the debris later. The collection box is installed on the bracket through the insertion rod and the slot. The insertion rod and the slot are both inclined to prevent the collection box from loosening and falling. When the collection box needs to be removed, it can be directly aligned upward and lifted, which is also very convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the bracket of the utility model;

[0018] Figure 3 It is an enlarged view of point A of the utility model;

[0019] Figure 4 It is an enlarged view of point B of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the slideway of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the plug rod of the utility model.

[0022] Explanation of the numbers in the figure: 1. bracket; 2. reflector; 3. collector tube; 4. rack; 5. housing; 6. servo motor; 7. gear; 8. fixing rod; 9. sleeve; 10. sleeve; 11. slide rod; 12. baffle; 13. spring; 14. brush plate; 15. fixing plate; 16. slide groove; 17. collecting box; 18. plug rod; 19. slot; 20. first fixing block; 21. groove; 22. second fixing block; 23. limit groove; 24. limit block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 6A novel trough-type solar collector comprises a bracket 1, a reflector 2 and a heat collecting tube 3. A rack 4 is fixedly connected inside the bracket 1 and located above the reflector 2. A housing 5 is slidably connected to the outside of the rack 4. A servo motor 6 is fixedly connected to the outside of the housing 5. A gear 7 is rotatably connected to the inside of the housing 5. The gear 7 is fixedly connected to the output end of the servo motor 6. The rack 4 is meshed with the gear 7. The gear 7 is driven by the servo motor 6 to rotate forward and reversely, and the housing 5 moves back and forth in cooperation with the rack 4. A fixing rod 8 is fixedly connected to the bottom of the housing 5. The cross section of the fixing rod 8 is a square structure, which can limit the sleeve 9 so that the sleeve 9 can only move up and down without twisting. The outer sleeve of the fixing rod 8 A sleeve 9 is provided, which is slidably connected to the fixed rod 8. A sleeve 10 is fixedly connected to the bottom of the sleeve 9. A sliding rod 11 is slidably connected inside the sleeve 10. A baffle 12 is fixedly connected to the outside of the sliding rod 11. A spring 13 is sleeved on the outside of the sliding rod 11 and is located between the sleeve 10 and the baffle 12. The elastic force of the spring 13 drives the sliding rod 11 to always press against the inner wall of the sliding groove 16 through the baffle 12. A brush plate 14 is fixedly connected to the bottom of the sleeve 10. A fixed plate 15 is fixedly connected to the outside of the bracket 1. A sliding groove 16 is opened on one side of the fixed plate 15 close to the sliding rod 11. The sliding groove 16 is used in conjunction with the sliding rod 11. The sliding rod 11 extends to the inside of the sliding groove 16, so that the sliding rod 11 slides in the sliding groove 16.

[0025] The slide groove 16 is a parallelogram structure, and the slide groove 16 of the parallelogram structure is composed of four parts, two upper and lower long grooves and two left and right inclined grooves. When the slide rod 11 is in the upper long groove, the brush plate 14 is in a state of separation from the reflector 2. When the slide rod 11 is in the lower long groove, the brush plate 14 is in a state of adhesion to the reflector 2. At this time, the brush plate 14 can automatically clean the upper surface of the reflector 2.

[0026] A first fixed block 20 is fixedly connected inside the slide groove 16. The cross section of the first fixed block 20 is a right-angled triangle structure. The first fixed block 20 is located in the two oblique grooves of the slide groove 16 and is point-symmetrically distributed. The first fixed block 20 is used to ensure that the slide rod 11 will not move back when entering the upper long groove from the lower long groove, or when entering the lower long groove from the upper long groove, thereby playing a limiting role.

[0027] A collection box 17 is provided on the inner side of the bracket 1 and below the reflector 2. An insertion rod 18 is fixedly connected to one side of the collection box 17. There are two insertion rods 18, which are symmetrically distributed. A slot 19 is provided inside the bracket 1, and the slot 19 is used in conjunction with the insertion rod 18. The collection box 17 is used to collect the debris cleaned up by the brush plate 14 to prevent the debris from falling directly to the ground, which is convenient for the later disposal of the debris. The collection box 17 is installed and fixed between the bracket 1 through the insertion rod 18 on one side to cooperate with the slot 19 on the bracket 1. The insertion rod 18 and the slot 19 are both inclined to prevent the collection box 17 from loosening and falling.

[0028] A groove 21 is provided inside the bracket 1, and a second fixing block 22 is fixedly connected inside the groove 21. The cross-section of the second fixing block 22 is an isosceles triangle structure. Since the reflector 2 is distributed as a whole on both sides of the bracket 1, the brush plate 14 will clean the upper surface of the reflector 2 while cleaning the upper surface of the reflector 2. The debris on the reflector 2 can fall directly into the collection box 17, while the debris on the bracket 1 may accumulate. In order to ensure that the debris on the bracket 1 can also fall smoothly into the collection box 17, a groove 21 is provided inside the bracket 1 on the upper surface of the bracket 1, so that the brush plate 14 can push the debris into the groove 21, and then use the second fixed block 22 in the groove 21 to guide the flow, so that the debris moves to both sides and finally falls into the collection box 17.

[0029] The corresponding two side edges of the rack 4 are provided with limiting grooves 23, and the limiting blocks 24 are slidably connected inside the limiting grooves 23. The limiting blocks 24 are fixedly connected to the outer shell 5. The limiting grooves 23 and the limiting blocks 24 are used to limit the outer shell 5 and the rack 4 to prevent the outer shell 5 from being separated from the rack 4, and at the same time, the stability of the outer shell 5 when moving can be ensured.

[0030] The utility model uses the following steps: When the utility model is in use, the servo motor 6 is started to rotate forward, and the brush plate 14 is driven to move toward the collection box 17 through the gear 7 and the rack 4. At this time, the slide bar 11 is located in the lower long groove of the slide slot 16, and the brush plate 14 fits with the upper surface of the reflector 2, which can automatically clean the reflector 2 and push the cleaned debris into the collection box 17. As the brush plate 14 continues to move, the slide bar 11 in the slide slot 16 will pass through the first fixed block 20 and enter the upper long groove of the slide slot 16. At this time, the brush plate 14 moves upward. Separated from the reflector 2, the servo motor 6 reverses, driving the brush plate 14 to move away from the collection box 17. Since the brush plate 14 has been separated from the reflector 2, the reflector 2 will no longer be cleaned when the brush plate 14 moves back, so that the cleaned debris will only be concentrated on the same side of the bracket 1, and the debris will be collected by the collection box 17, which is convenient for the staff to handle. After the brush plate 14 moves to the initial position, the slide bar 11 is allowed to enter the long groove below the slide groove 16 through another first fixed block 20, so as to carry out the next round of cleaning.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A novel trough solar collector, comprising a bracket (1), a reflector (2) and a heat collecting tube (3), characterized in that: A rack (4) is fixedly connected inside the bracket (1) and located above the reflector (2); a housing (5) is slidably connected to the outside of the rack (4); a servo motor (6) is fixedly connected to the outside of the housing (5); a gear (7) is rotatably connected to the inside of the housing (5); the gear (7) is fixedly connected to the output end of the servo motor (6); the rack (4) is meshingly connected to the gear (7); a fixing rod (8) is fixedly connected to the bottom of the housing (5); a sleeve (9) is sleeved on the outside of the fixing rod (8); the sleeve (9) is slidably connected to the fixing rod (8); The bottom of the sleeve (9) is fixedly connected to a sleeve (10), the interior of the sleeve (10) is slidably connected to a slide bar (11), the exterior of the slide bar (11) is fixedly connected to a baffle (12), a spring (13) is sleeved on the exterior of the slide bar (11) and located between the sleeve (10) and the baffle (12), the bottom of the sleeve (10) is fixedly connected to a brush plate (14), the exterior of the bracket (1) is fixedly connected to a fixing plate (15), a sliding groove (16) is provided on the interior of the fixing plate (15) on a side close to the slide bar (11), and the sliding groove (16) is used in conjunction with the slide bar (11).

2. A novel trough solar collector according to claim 1, characterized in that: The slide groove (16) is a parallelogram structure.

3. A novel trough solar collector according to claim 1, characterized in that: A first fixing block (20) is fixedly connected inside the sliding groove (16), and the cross section of the first fixing block (20) is a right-angled triangle structure.

4. A novel trough solar collector according to claim 1, characterized in that: A collection box (17) is provided on the inner side of the bracket (1) and below the reflector (2); a plug rod (18) is fixedly connected to one side of the collection box (17); there are two plug rods (18) in total, and the two plug rods (18) are symmetrically distributed; a slot (19) is provided inside the bracket (1), and the slot (19) is used in conjunction with the plug rod (18).

5. A novel trough solar collector according to claim 1, characterized in that: A groove (21) is provided inside the bracket (1), and a second fixing block (22) is fixedly connected inside the groove (21), and the cross section of the second fixing block (22) is an isosceles triangle structure.

6. A novel trough solar collector according to claim 1, characterized in that: The corresponding two side edges of the rack (4) are provided with limiting grooves (23), the interior of the limiting grooves (23) is slidably connected to limiting blocks (24), and the limiting blocks (24) are fixedly connected to the housing (5).

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