Flat plate type solar heat collector

Abstract

The utility model relates to the technical field of solar water heaters, and discloses a flat plate type solar heat collector which comprises a metal shell frame, a cavity is formed in the metal shell frame, a U-shaped heat collecting pipe is connected in the cavity in a penetrating mode, and a heat preservation layer is fixedly connected to the top of the metal shell frame. According to the flat plate type solar heat collector, through the arrangement of a light gathering plate, an angle adjusting mechanism and a heat preservation layer, during heat collection, a hydraulic rod on the back of the light gathering plate is started, the hydraulic rod drives the light gathering plate on the top to conduct angle adjustment on the surface of the metal shell frame through a fixing connector, and after the angle is adjusted to a proper position, the angle is adjusted; light rays from the sun can be focused to a heat collection area of the solar heat collector, the density of the light rays and the energy density are improved, and therefore the heat generation efficiency of the heat collector is improved, heat can be better retained in cooperation with a heat preservation layer arranged on the top, heat loss is avoided, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar water heaters, in particular to a flat-plate solar collector. Background Art

[0002] Due to the shortage of energy and the environmental pollution caused by conventional energy, the use of environmentally friendly renewable energy has become a hot topic. The "inexhaustible" solar energy is increasingly valued and favored by people. The thermal utilization of solar energy has also developed from conventional solar water heaters to solar heat pumps, solar heating, and solar composite air conditioning. Therefore, high pressure, anti-freeze, simple, reliable, long life, and multifunctional, high-performance solar collectors that can meet the needs of multiple working fluids have become the key to solving this problem. Solar collectors are the main components that convert solar radiation energy into thermal energy. According to the different heat collection methods and working temperatures, they are generally divided into focusing and non-focusing types. Among the non-focusing types, there are mainly sun-drying collectors, flat plate collectors, and vacuum tube collectors. Only the flat plate collector can use refrigerant as a working fluid.

[0003] The existing flat-plate solar collector has poor heat collection effect when the sunlight is insufficient, and it is not easy to meet the user's demand for hot water. Therefore, a flat-plate solar collector is proposed.

[0004] A flat plate solar collector disclosed in the announcement number CN205245584U is mainly characterized by improving the existing flat plate solar collector, wherein the heat conductor is designed to be connected with the heat transfer head and the heat conductor, an antifreeze drain pipe head and a drain pipe head cover plate are arranged on one side of the hot water outlet cover plate, a drain pipe cover plate is arranged outside the antifreeze drain pipe, and a graphite powder layer is arranged between the antifreeze drain pipe and the cover plate. When in use, the hot water outlet pipe is connected to the pressure water tank, and the solar heated water is stored in the water tank for use. It has the advantages of saving materials, convenient manufacturing, extended service life, reduced cost, improved heat absorption rate and thermal conductivity.

[0005] Although the above patent has the advantages of saving materials, easy manufacturing, extended service life, reduced costs, improved heat absorption and thermal conductivity, etc.; however, the device lacks the function of cleaning dust on the surface of the flat-plate solar collector. If it is exposed to the outside for a long time, dust is easily accumulated on the surface of the flat-plate solar collector, affecting the heat collection effect.

[0006] Therefore, it is necessary to invent a flat-plate solar collector to solve the above problems. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] The technical problem solved by the utility model is to provide a flat-plate solar collector with high practicality, simple operation and relatively simple structure, which solves the problem of lack of dust cleaning on the surface of the flat-plate solar collector raised in the above background technology.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the utility model is implemented through the following technical solutions: a flat-plate solar collector, comprising a metal outer shell frame, a cavity is provided inside the metal outer shell frame, a U-shaped heat collecting tube is connected to the inside of the cavity, a thermal insulation layer is fixedly connected to the top of the metal outer shell frame, a tempered glass is fixedly connected to the top of the thermal insulation layer, both sides of the surface of the metal outer shell frame are hinged with focusing plates through hinges, the back of the focusing plate is fixedly connected with an angle adjustment mechanism, the bottom of the angle adjustment mechanism is fixedly connected with a support block, the bottom of the support block is threadedly connected with a support plate, one side of the support plate is fixedly connected with an extension plate, the top of the extension plate is fixedly connected with a motor box, the inside of the motor box is fixedly connected with a driving mechanism, one end of the driving mechanism is fixedly connected with a screw, the surface of the screw is threadedly connected with a cleaning mechanism, and one side of the cleaning mechanism is slidably connected with a limiting plate.

[0011] As a further solution of the utility model, the angle adjustment mechanism includes a fixed joint fixedly connected to the back of the focusing plate, the surface of the fixed joint is rotatably connected to a hydraulic rod, one end of the hydraulic rod is rotatably connected to a connecting head, and the connecting head is fixedly connected to the top of the support block.

[0012] As a further solution of the utility model, the driving mechanism includes a servo motor fixedly connected to the inside of the motor box, the output end of the servo motor is splined to a transmission rod, and one side of the transmission rod is fixedly connected to one end of the screw rod.

[0013] As a further solution of the utility model, the cleaning mechanism includes a threaded barrel threadedly connected to the surface of the screw rod, a brush is fixedly connected to one side of the threaded barrel, and the brush is slidably connected to the inside of a slide groove opened on the surface of the limiting plate.

[0014] As a further solution of the utility model, a heat-conducting medium inlet is fixedly connected to one side of the metal outer shell frame, and a heat-conducting medium outlet is fixedly connected to the other side of the metal outer shell frame.

[0015] As a further solution of the utility model, one end of the screw rod is rotatably connected to a fixing plate via a rotating shaft, and the fixing plate is fixedly connected to one side of the supporting plate.

[0016] As a further solution of the utility model, two groups of threaded holes are provided on the surfaces of the support plate and the support block, and threaded columns are connected to the internal threads of the threaded holes.

[0017] (III) Beneficial effects

[0018] The utility model provides a flat-plate solar collector, which has the following beneficial effects:

[0019] 1. The flat-plate solar collector is provided with a concentrating plate, an angle adjustment mechanism and a thermal insulation layer. When collecting heat, the hydraulic rod on the back of the concentrating plate is started, and the hydraulic rod drives the concentrating plate on the top to adjust the angle on the surface of the metal outer shell frame through a fixed joint. After adjusting to a suitable position, the light from the sun can be focused onto the heat collection area of ​​the solar collector, thereby increasing the light density and energy density, thereby increasing the heat generation efficiency of the collector, and the thermal insulation layer provided on the top can better retain heat, avoid heat loss, and improve the practicability of the equipment.

[0020] 2. The flat-plate solar collector is provided with a driving mechanism, a screw and a cleaning mechanism. When cleaning the dust on the surface of the solar collector, the servo motor on one side is started, and the servo motor drives the screw on one side to rotate, so that the threaded barrel on the surface of the screw and the brush on one side of the threaded barrel move left and right on the surface of the screw, and cooperates with the limit plate on one side so that the brush cleans the dust on the surface of the solar collector during the movement, so as to keep the surface of the solar collector clean and tidy, and avoid being exposed to the outside for a long time, so as to avoid the accumulation of dust on the surface of the flat-plate solar collector and affect the heat collection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the cleaning mechanism structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the angle adjustment mechanism structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the insulation layer structure of the utility model.

[0025] In the figure: 1. Metal outer shell frame; 2. U-shaped heat collecting tube; 3. Insulation layer; 4. Tempered glass; 5. Focusing plate; 6. Angle adjustment mechanism; 601. Fixed joint; 602. Hydraulic rod; 603. Connector; 7. Support block; 8. Support plate; 9. Extension plate; 10. Motor box; 11. Driving mechanism; 1101. Servo motor; 1102. Transmission rod; 12. Screw; 13. Cleaning mechanism; 1301. Threaded barrel; 1302. Brush; 14. Limiting plate; 15. Heat transfer medium inlet; 16. Heat transfer medium outlet; 17. Fixed plate; 18. Threaded column. DETAILED DESCRIPTION

[0026] 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. 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.

[0027] See also Figures 1 to 4 The utility model provides a technical solution: a flat-plate solar collector, comprising a metal outer shell frame 1, a cavity is provided inside the metal outer shell frame 1, a U-shaped heat collecting tube 2 is connected to the inside of the cavity, a heat preservation layer 3 is fixedly connected to the top of the metal outer shell frame 1, a tempered glass 4 is fixedly connected to the top of the heat preservation layer 3, both sides of the surface of the metal outer shell frame 1 are hinged with a focusing plate 5, and the back of the focusing plate 5 is fixedly connected with an angle adjustment mechanism 6. The arrangement of the focusing plate 5, the angle adjustment mechanism 6 and the heat preservation layer 3 can avoid heat loss and improve the practicality of the device. The bottom of the angle adjustment mechanism 6 The bottom of the support block 7 is fixedly connected to the support plate 8, the bottom of the support block 7 is threadedly connected to the support plate 8, one side of the support plate 8 is fixedly connected to the extension plate 9, the top of the extension plate 9 is fixedly connected to the motor box 10, the inside of the motor box 10 is fixedly connected to the driving mechanism 11, and the arrangement of the driving mechanism 11, the screw rod 12 and the cleaning mechanism 13 can prevent the flat-plate solar collector from being exposed to the outside for a long time, and dust will accumulate on the surface, affecting the heat collection effect. One end of the driving mechanism 11 is fixedly connected to the screw rod 12, and the surface of the screw rod 12 is threadedly connected to the cleaning mechanism 13, and one side of the cleaning mechanism 13 is slidably connected to the limit plate 14;

[0028] See also Figure 3 The angle adjustment mechanism 6 includes a fixed joint 601 fixedly connected to the back of the focusing plate 5, a hydraulic rod 602 is rotatably connected to the surface of the fixed joint 601, one end of the hydraulic rod 602 is rotatably connected to a connector 603, and the connector 603 is fixedly connected to the top of the support block 7;

[0029] See also Figure 2The driving mechanism 11 includes a servo motor 1101 fixedly connected to the inside of the motor box 10, the output end of the servo motor 1101 is spline-connected to a transmission rod 1102, and one side of the transmission rod 1102 is fixedly connected to one end of the screw rod 12;

[0030] See also Figure 2 The cleaning mechanism 13 includes a threaded barrel 1301 threadedly connected to the surface of the screw rod 12, a brush 1302 is fixedly connected to one side of the threaded barrel 1301, and the brush 1302 is slidably connected to the inside of a slide groove opened on the surface of the limiting plate 14;

[0031] See also Figure 4 A heat transfer medium inlet 15 is fixedly connected to one side of the metal outer shell frame 1, and a heat transfer medium outlet 16 is fixedly connected to the other side of the metal outer shell frame 1;

[0032] See also Figure 1 One end of the screw rod 12 is rotatably connected to a fixing plate 17 via a rotating shaft, and the fixing plate 17 is fixedly connected to one side of the supporting plate 8 .

[0033] See also Figure 3 The surfaces of the support plate 8 and the support block 7 are both provided with two groups of threaded holes, and the internal threads of the threaded holes are connected with threaded columns 18 .

[0034] In the utility model, the working steps of the device are as follows:

[0035] Step 1: When collecting heat, start the hydraulic rod 602 on the back of the concentrator 5. The hydraulic rod 602 drives the concentrator 5 on the top to adjust its angle on the surface of the metal outer shell frame 1 through the fixed joint 601. After adjusting to a suitable position, the light from the sun can be focused on the heat collection area of ​​the solar collector, thereby increasing the light density and energy density, thereby increasing the heat generation efficiency of the collector, and the heat insulation layer 3 set on the top can better retain the heat;

[0036] The second step: when cleaning the dust on the surface of the solar collector, start the servo motor 1101 on one side, and the servo motor 1101 drives the screw 12 on one side to rotate, so that the threaded tube 1301 on the surface of the screw 12 and the brush 1302 on one side of the threaded tube 1301 move left and right on the surface of the screw 12, and cooperate with the limit plate 14 on one side, so that the brush 1302 cleans the dust on the surface of the solar collector during the movement, keeping the surface of the solar collector clean and tidy.

[0037] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0038] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flat-plate solar collector, comprising a metal outer shell frame (1), characterized in that: The metal outer shell frame (1) has a cavity formed inside, a U-shaped heat collecting tube (2) is connected through the cavity, a heat insulation layer (3) is fixedly connected to the top of the metal outer shell frame (1), a tempered glass (4) is fixedly connected to the top of the heat insulation layer (3), light collecting plates (5) are hingedly connected to both sides of the surface of the metal outer shell frame (1), an angle adjustment mechanism (6) is fixedly connected to the back of the light collecting plate (5), and a support block (7) is fixedly connected to the bottom of the angle adjustment mechanism (6). The bottom of the support block (7) is threadedly connected to a support plate (8), one side of the support plate (8) is fixedly connected to an extension plate (9), the top of the extension plate (9) is fixedly connected to a motor box (10), the interior of the motor box (10) is fixedly connected to a drive mechanism (11), one end of the drive mechanism (11) is fixedly connected to a screw rod (12), the surface of the screw rod (12) is threadedly connected to a cleaning mechanism (13), and one side of the cleaning mechanism (13) is slidably connected to a limit plate (14).

2. A flat-plate solar collector according to claim 1, characterized in that: The angle adjustment mechanism (6) comprises a fixed joint (601) fixedly connected to the back of the focusing plate (5); a hydraulic rod (602) is rotatably connected to the surface of the fixed joint (601); one end of the hydraulic rod (602) is rotatably connected to a connecting head (603); and the connecting head (603) is fixedly connected to the top of the support block (7).

3. A flat-plate solar collector according to claim 1, characterized in that: The driving mechanism (11) comprises a servo motor (1101) fixedly connected to the inside of the motor box (10), the output end of the servo motor (1101) is spline-connected to a transmission rod (1102), and one side of the transmission rod (1102) is fixedly connected to one end of the lead screw (12).

4. A flat-plate solar collector according to claim 1, characterized in that: The cleaning mechanism (13) comprises a threaded barrel (1301) threadedly connected to the surface of the screw rod (12); a brush (1302) is fixedly connected to one side of the threaded barrel (1301); and the brush (1302) is slidably connected to the inside of a slide groove provided on the surface of the limiting plate (14).

5. A flat-plate solar collector according to claim 1, characterized in that: A heat-conducting medium inlet (15) is fixedly connected to one side of the metal outer shell frame (1), and a heat-conducting medium outlet (16) is fixedly connected to the other side of the metal outer shell frame (1).

6. A flat-plate solar collector according to claim 1, characterized in that: One end of the screw rod (12) is rotatably connected to a fixing plate (17) via a rotating shaft, and the fixing plate (17) is fixedly connected to one side of the supporting plate (8).

7. A flat-plate solar collector according to claim 1, characterized in that: The surfaces of the support plate (8) and the support block (7) are each provided with two groups of threaded holes, and the internal threads of the threaded holes are connected with threaded columns (18).

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