Rolling brush device for cleaning tower-type heliostat

Abstract

The utility model relates to a rolling brush device for cleaning a tower-type heliostat, and belongs to the technical field of cleaning devices applied to photo-thermal power stations. The rolling brush device comprises a rolling brush and a supporting plate. The two ends of the rolling brush are rotatably fixed to one side of the supporting plate through a rolling brush supporting frame. The rolling brush comprises a rolling brush barrel, a brush arranged on the surface of the rolling brush barrel, a wind power unit which is arranged in the rolling brush barrel, is of an annular hollow structure and is used for providing wind power, and a power unit which is arranged in the wind power unit and is used for providing rotation power for the rolling brush. The wind power unit comprises a cylindrical protective shell, an annular electric heating net and a wind power roller, wherein the cylindrical wall of the protective shell is provided with an interlayer, and the annular electric heating net and the wind power roller are arranged in the protective shell; a fan is arranged on the wind power roller; the utility model provides a rolling brush device for cleaning a tower-type heliostat. The rolling brush has a hot air blowing function, and the cleaning effect in winter can be improved.

Description

Technical Field

[0001] The utility model relates to a roller brush device for cleaning a tower heliostat, and belongs to the technical field of cleaning devices applied to photothermal power stations. Background Art

[0002] In a tower solar thermal power station, the heliostat is an important collection unit, and its cleanliness is an important factor affecting the concentration efficiency of the mirror field. Cleanliness affects the intensity of light reflected by the heliostat, thereby affecting the absorber's absorption of solar energy.

[0003] Solar thermal power stations are usually built in deserts and Gobi areas such as the northwest. These areas are often accompanied by strong winds and sand layers. In such an environment, dust is easily deposited on the surface of the heliostat, resulting in a reduction in the reflected solar power, which in turn reduces the amount of light energy received by the absorber, ultimately affecting the power generation efficiency of the solar thermal power station. In addition, since the temperature in these areas is relatively low in winter, if the water is directly used for washing, the water sprayed on the mirror surface will quickly freeze and damage the mirror surface, but the dust layer attached to the mirror surface in winter is difficult to brush off.

[0004] The roller brush used for cleaning tower heliostats in the prior art has the technical problems of poor dry brushing effect in winter, difficulty in disassembly, and inconvenient maintenance. Utility Model Content

[0005] In view of the above technical problems, the utility model provides a roller brush device for cleaning a tower heliostat; the roller brush has a hot air blowing function, which can improve the cleaning effect in winter.

[0006] The utility model is realized by the following technical solutions:

[0007] A roller brush device for cleaning a tower heliostat, the roller brush device comprising: a roller brush and a support plate; the two ends of the roller brush are rotatably fixed to one side of the support plate through a roller brush support frame; the roller brush comprises a roller brush barrel and a brush arranged on the surface of the roller brush barrel; the roller brush further comprises:

[0008] A wind power unit of an annular hollow structure disposed inside the roller brush barrel for providing wind power, and a power unit disposed inside the wind power unit for providing rotational power for the roller brush;

[0009] The wind unit comprises a cylindrical protective shell with an interlayer on the wall, an annular electric heating net and a wind drum arranged in the protective shell; a fan is arranged on the wind drum; the annular electric heating net and the wind drum are arranged in the interlayer, which can play a waterproof role;

[0010] The protective shell is fixedly arranged inside the roller brush barrel, and air outlets are arranged on the protective shell and the roller brush barrel.

[0011] Furthermore, a movable air outlet baffle is provided on the air outlet of the protective shell.

[0012] Furthermore, the power unit includes a motor; the motor is a dual-shaft motor;

[0013] The two opposite ends of the dual-axis motor each include a motor shaft, and each motor shaft is connected to a gear, a bearing and a bearing seat in sequence; and the two bearing seats are connected to the roller brush support frame.

[0014] Furthermore, the two gears in the power unit are fixedly connected to the wind roller in the wind unit;

[0015] Furthermore, the power unit also includes a motor protection shell arranged outside the motor.

[0016] Furthermore, the motor is a waterproof motor with a rotation speed between 50-300 rpm.

[0017] Furthermore, a support unit capable of adjusting the angle is provided on the other side of the support plate; the support unit comprises: a regulating rod, a telescopic rod, a fixing frame, and a mechanical arm;

[0018] The regulating rod comprises a first regulating rod and a second regulating rod, the first regulating rod and the second regulating rod are cross-arranged, the fixing frame passes through the intersection of the first regulating rod and the second regulating rod, one end of the fixing frame is arranged on the supporting plate, and the other end of the fixing frame is connected to the mechanical arm;

[0019] Therefore, the telescopic rod includes a first telescopic rod and a second telescopic rod;

[0020] One end of the first adjusting rod is connected to one end of the first telescopic rod, the other end of the first telescopic rod is fixed to the support plate, and the other end of the first adjusting rod is connected to the support plate via a spring; one end of the second adjusting rod is connected to one end of the second telescopic rod, the other end of the second telescopic rod is fixed to the support plate, and the other end of the second adjusting rod is connected to the support plate via a spring.

[0021] Furthermore, the telescopic rod is electrically telescopic, and electric wires are arranged inside the mechanical arm 7, the fixing frame and the regulating rod, and the electric wires are connected to the telescopic rod.

[0022] Furthermore, a plurality of brush slots are provided on the surface of the roller brush barrel; the brush is detachably arranged on the surface of the roller brush barrel through the brush slots.

[0023] Furthermore, a brush made of polyethylene material is used in the water-washing mode; and a brush made of nylon material is used in the winter dry-cleaning mode.

[0024] Beneficial technical effects of the utility model:

[0025] (1) In the roller brush device for cleaning a tower heliostat provided by the utility model, the roller brush barrel and the brush of the roller brush are detachable, and the disassembly operation is simple, and it is easy to repair and replace.

[0026] (2) The roller brush in the roller brush device for cleaning the tower heliostat provided by the utility model adopts an electric rotation mode, and the rotation speed can be adjusted to improve the cleaning efficiency.

[0027] (3) The roller brush in the roller brush device for cleaning the tower heliostat provided by the utility model has a hot air blowing function, which can improve the cleaning effect in winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The present invention is a schematic structural diagram of a roller brush device for cleaning a tower heliostat in an embodiment of the present invention.

[0029] Figure 2a It is a schematic diagram of the structure of a roller brush barrel (without a brush) in an embodiment of the utility model.

[0030] Figure 2b It is a schematic diagram of the structure of a roller brush barrel (with a brush) in an embodiment of the utility model.

[0031] Figure 3 It is a side schematic diagram of the roller brush device in the embodiment of the utility model.

[0032] Figure 4 This is a schematic diagram of the structure of the wind power unit inside the roller brush in an embodiment of the utility model.

[0033] Figure 5 It is a schematic diagram of the structure of the internal power unit of the roller brush in the embodiment of the utility model.

[0034] Figure numerals: 1. roller brush; 2. support plate; 3. regulating rod; 4. telescopic rod; 5. spring; 6. fixing frame; 7. mechanical arm; 8. roller brush support frame; 101. roller brush barrel; 102. brush; 103. protective shell; 104. electric heating network; 105. wind roller; 106. fan; 107. air outlet baffle; 108. motor; 109. motor protective shell; 110. gear; 111. bearing; 112. bearing seat. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0036] On the contrary, the present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention as defined by the claims. Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the following detailed description of the present invention. Those skilled in the art can fully understand the present invention without the description of these details.

[0037] like Figure 1 , Figure 2a-2b as well as Figure 3 As shown, the utility model provides a roller brush device for cleaning a tower heliostat; the roller brush device comprises: a roller brush 1 and a support plate 2; both ends of the roller brush 1 are rotatably fixed to one side of the support plate 2 through a roller brush support frame 8; the roller brush comprises a roller brush barrel 101 and a brush 102 arranged on the surface of the roller brush barrel 101; the roller brush 1 also comprises:

[0038] A wind power unit of an annular hollow structure disposed inside the roller brush barrel 101 for providing wind power, and a power unit disposed inside the wind power unit for providing rotational power for the roller brush;

[0039] The wind unit comprises a cylindrical protective shell 103 with an interlayer on the wall, a ring-shaped electric heating net 104 and a wind roller 105 arranged in the protective shell 103; a fan 106 is arranged on the wind roller 105; the ring-shaped electric heating net and the wind roller are arranged in the interlayer, which can play a waterproof role;

[0040] The protective shell 103 is fixedly disposed inside the roller brush barrel 101 , and air outlets are disposed on both the protective shell 103 and the roller brush barrel 101 .

[0041] In this embodiment, a movable air outlet baffle 107 is provided on the air outlet of the protective shell 103 .

[0042] Specifically, Figure 4As shown, the wind unit is divided into three layers in total. The outermost layer is a cylindrical protective shell 103 with a sandwich wall. The second layer is a ring-shaped electric heating network 104 fixedly arranged in the sandwich of the protective shell. The third layer is a wind roller 105 fixedly arranged on the inner wall of the ring-shaped electric heating network 104; a small fan 106 is installed on the wind roller 105. The air outlet of the protective shell 103 is equipped with a movable air outlet baffle 107. When the wind unit is not working, the air outlet baffle 107 is closed to protect the ring-shaped electric heating network 104 and the small fan 106 inside. The wind unit is usually only used for dry brushing in winter.

[0043] After the small fan 106 is started, it blows air to the outside. The air becomes hot after passing through the electric heating network 104, and then reaches the heliostat mirror surface after passing through the air outlet of the protective shell 103 and the air outlet hole of the roller brush barrel 101.

[0044] Most solar thermal projects are located in the northwest region. Due to the low temperature in winter, if the mirror is washed directly with water, the water sprayed on the mirror will freeze quickly and damage the mirror. However, in winter, the dust layer attached to the mirror is difficult to brush clean, so the mirror is first blown with hot air, and then dry-brushed with a roller brush, which can improve the cleaning effect of the mirror.

[0045] In this embodiment, the power unit includes a motor 108; the motor 108 is a dual-axis motor;

[0046] The two opposite ends of the dual-axis motor each include a motor shaft, each motor shaft is sequentially connected to a gear 110, a bearing 111 and a bearing seat 112; and the two bearing seats 112 are connected to the roller brush support frame 8; the components on both sides of the two motor shafts are symmetrically arranged;

[0047] In this embodiment, the two gears 110 in the power unit are fixedly connected to the wind roller 105 in the wind unit; a connecting hole is provided inside the interlayer of the protective shell where the wind roller is located, for connecting the gears and the wind roller; the power unit also includes a motor protective shell 109 arranged outside the motor 108.

[0048] Specifically, Figure 5 As shown. The core equipment of the power unit includes a motor 108, a motor protective shell 109, a gear 110, a bearing 111, and a bearing seat 112. The motor 108 is a waterproof motor, and the speed is adjustable between 50-300 rpm. The motor 108 is placed inside the motor protective shell 109.

[0049] When the motor 108 rotates, it drives the gear 110 and the bearing 111 to rotate. The gear 110, the wind roller 105, the protective shell 103, and the roller brush barrel 101 are fixedly connected in sequence. Therefore, the gear 110 rotates and drives the roller brush 1 to rotate. The bearing seat 112 is connected to the roller brush support frame 8 of the roller brush 1. Specifically, wires are arranged inside the mechanical arm 7, the fixing frame 6, the support plate 2, and the roller brush support frame 8 to power the equipment inside the roller brush.

[0050] In this embodiment, a support unit capable of adjusting the angle is provided on the other side of the support plate 2; the support unit comprises: a regulating rod 3, a telescopic rod 4, a fixing frame 6, and a mechanical arm 7;

[0051] The regulating rod 3 includes a first regulating rod and a second regulating rod, the first regulating rod and the second regulating rod are cross-arranged, the fixing frame 6 passes through the intersection of the first regulating rod and the second regulating rod, one end of the fixing frame 6 is arranged on the supporting plate 2, and the other end of the fixing frame 6 is connected to the mechanical arm 7;

[0052] Therefore, the telescopic rod 4 includes a first telescopic rod and a second telescopic rod;

[0053] One end of the first adjusting rod is connected to one end of the first telescopic rod, the other end of the first telescopic rod is fixed on the support plate 2, and the other end of the first adjusting rod is connected to the support plate 2 via a spring 5; one end of the second adjusting rod is connected to one end of the second telescopic rod, the other end of the second telescopic rod is fixed on the support plate 2, and the other end of the second adjusting rod is connected to the support plate 2 via a spring 5.

[0054] In this embodiment, the telescopic rod 4 is electrically telescopic, and electric wires are arranged inside the mechanical arm 7 , the fixing frame 6 and the regulating rod 3 , and the electric wires are connected to the telescopic rod 4 .

[0055] Specifically, Figure 1 As shown, two regulating rods 3 are connected to the back of the support plate 2, which respectively control the changes of the horizontal and pitch angles. The inside of the regulating rod 3 is hollow and arranged with wires. A telescopic rod 4 is connected to one end of the regulating rod 3. The telescopic rod 4 is an electric device, which is powered and controlled by the wires inside the regulating rod 3. A spring 5 is connected to the other end of the regulating rod 3. The telescopic rods 4 and the spring 5 at both ends of the regulating rod 3 work together to control the support plate 2, thereby driving the roller brush 1 to adjust the angle.

[0056] One end of the fixing frame 6 is fixedly connected to the support plate 2, and the other end is connected to the mechanical arm 7 after passing through the regulating rod 3. The mechanical arm 7 is usually connected to a cleaning vehicle to control the support plate 2 of the roller brush 1 to perform a heliostat cleaning operation. Wires can be arranged inside the mechanical arm 7, the fixing frame 6 and the regulating rod 3, and the wires are used to power the telescopic rod 4.

[0057] In this embodiment, a plurality of brush slots are provided on the surface of the roller brush barrel 101 ; the brushes are detachably arranged on the surface of the roller brush barrel 101 through the brush slots.

[0058] In this embodiment, a brush made of polyethylene material is used in the water washing mode; and a brush made of nylon material is used in the winter dry cleaning mode.

[0059] like Figure 2a-2b As shown, the length and diameter of the roller brush 1 can be customized according to the length and width of the heliostat; the roller brush barrel 101 is provided with ten brush 102 slots, and the brush 102 can be inserted into the roller brush barrel 101 slot through one side of the roller brush barrel 101, as shown in FIG. Figure 3 As shown. The brush 102 can be disassembled. The detachable design is to allow the brush 102 to be replaced according to different seasons and cleaning modes, and it is also convenient to replace a damaged brush. A polyethylene brush is used in the water washing mode, and a nylon brush is used in the winter dry cleaning mode, which can protect the mirror surface to the greatest extent.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A roller brush device for cleaning a tower heliostat, the roller brush device comprising: Roller brush, support plate; both ends of the roller brush are rotatably fixed to one side of the support plate through a roller brush support frame; The roller brush comprises a roller brush barrel and a brush arranged on the surface of the roller brush barrel; characterized in that the roller brush further comprises: A wind power unit of an annular hollow structure disposed inside the roller brush barrel for providing wind power, and a power unit disposed inside the wind power unit for providing rotational power for the roller brush; The wind unit comprises a cylindrical protective shell with a sandwich wall, a ring-shaped electric heating network and a wind drum arranged in the protective shell; a fan is arranged on the wind drum; The protective shell is fixedly arranged inside the roller brush barrel, and air outlets are arranged on the protective shell and the roller brush barrel.

2. A roller brush device for cleaning a tower heliostat according to claim 1, characterized in that: A movable air outlet baffle is arranged on the air outlet of the protective shell.

3. The roller brush device for cleaning a tower heliostat according to claim 1, characterized in that: The power unit includes a motor; the motor is a dual-shaft motor; The two opposite ends of the dual-axis motor each include a motor shaft, and each motor shaft is connected to a gear, a bearing and a bearing seat in sequence; and the two bearing seats are connected to the roller brush support frame.

4. A roller brush device for cleaning a tower heliostat according to claim 3, characterized in that: The two gears in the power unit are fixedly connected to the wind roller in the wind unit.

5. The roller brush device for cleaning a tower heliostat according to claim 3, characterized in that: The power unit also includes a motor protection shell arranged outside the motor.

6. A rolling brush device for cleaning a tower heliostat according to claim 4, characterized in that: The motor is a waterproof motor with a rotation speed between 50 and 300 rpm.

7. A roller brush device for cleaning a tower heliostat according to claim 1, characterized in that: A support unit capable of adjusting the angle is provided on the other side of the support plate; the support unit comprises: a regulating rod, a telescopic rod, a fixing frame, and a mechanical arm; The regulating rod comprises a first regulating rod and a second regulating rod, the first regulating rod and the second regulating rod are cross-arranged, the fixing frame passes through the intersection of the first regulating rod and the second regulating rod, one end of the fixing frame is arranged on the supporting plate, and the other end of the fixing frame is connected to the mechanical arm; Therefore, the telescopic rod includes a first telescopic rod and a second telescopic rod; One end of the first adjusting rod is connected to one end of the first telescopic rod, the other end of the first telescopic rod is fixed to the support plate, and the other end of the first adjusting rod is connected to the support plate via a spring; one end of the second adjusting rod is connected to one end of the second telescopic rod, the other end of the second telescopic rod is fixed to the support plate, and the other end of the second adjusting rod is connected to the support plate via a spring.

8. A roller brush device for cleaning a tower heliostat according to claim 7, characterized in that: The telescopic rod is electrically telescopic, and electric wires are arranged inside the mechanical arm, the fixing frame and the regulating rod, and the electric wires are connected to the telescopic rod.

9. A roller brush device for cleaning a tower heliostat according to claim 1, characterized in that: The surface of the roller brush barrel is provided with a plurality of brush slots; the brush is detachably arranged on the surface of the roller brush barrel through the brush slots.

10. A roller brush device for cleaning a tower heliostat according to claim 9, characterized in that: Use a polyethylene brush in the water-wash mode; use a nylon brush in the dry-clean mode in winter.

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