Runner structure of large-size flat-plate solar collector

Abstract

The utility model discloses a large-size flat-plate solar heat collector runner structure, and particularly relates to the technical field of heat collectors, the large-size flat-plate solar heat collector runner structure comprises a plurality of calandrias and two headers, the two headers are respectively arranged at two ends of the calandrias, an upper heat conductor and a lower heat conductor are arranged on the outer sides of the calandrias, and rubber sleeves are arranged on the outer surfaces of the two ends of the calandrias. The calandria is inserted into the header through a rubber sleeve, the header is provided with a mounting assembly, and the header is connected to the upper heat conductor and the lower heat conductor through the mounting assembly; the upper heat conductor and the lower heat conductor are the same in structure, the upper heat conductor comprises multiple sections of heat-conducting flat plates and multiple sections of heat-conducting annular plates, the multiple sections of heat-conducting flat plates and the multiple sections of heat-conducting annular plates are staggered and integrally connected, the size of the heat-conducting annular plates is matched with the size of the calandria, and the calandria is arranged between the adjacent heat-conducting annular plates; the utility model solves the technical problem that the connection mode of welding and fixing the calandria in the current heat collector affects the medium heating efficiency and the disassembly, assembly and maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of heat collectors, and more specifically, to a flow channel structure of a large-size flat-plate solar heat collector. Background Art

[0002] A water heater composed of flat-plate solar collector components is called a flat-plate solar water heater. A flat-plate solar collector is mainly composed of a flat-plate solar collector heat absorbing plate, a flat-plate solar collector transparent cover, a flat-plate solar collector insulation layer and a flat-plate solar collector shell. Flat-plate collectors have been widely used in many fields such as domestic water heating, swimming pool heating, industrial water heating, building heating and air conditioning. The principle of a flat-plate solar collector is to use sunlight to shine through a transparent cover onto a heat absorber coated with an absorption layer on the surface, where most of the solar radiation energy is absorbed by the absorber, converted into heat energy, and transmitted to the working medium in the fluid channel.

[0003] At present, when a flat-plate solar collector is in use, its heat absorbing plate is located on the top, and the flow channel is located on the side of the heat absorbing plate facing away from the sun. The heat absorbing plate obtains heat by absorbing solar radiation, and the heat is transferred to the flow channel to heat the medium. Since the current flow channel is composed of a plurality of circular row pipes connected by two collecting pipes, and the row pipes arranged on the heat absorbing plate are mostly fixed by welding, the contact area between the welded row pipes and the heat absorbing plate is limited, which affects the efficiency of medium heating, and the welded row pipes affect the subsequent disassembly and assembly requirements for maintenance. Utility Model Content

[0004] In order to overcome the above-mentioned shortcomings, the utility model aims to provide a technical solution that can solve the technical problem that the welding and fixing connection mode of the row pipes in the current collector flow channel structure affects the medium heating efficiency and disassembly and maintenance.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-size flat-plate solar collector flow channel structure, including multiple row tubes and two collecting tubes, the two collecting tubes are respectively arranged at the two end positions of the row tubes, and the outer sides of the multiple row tubes are provided with upper heat conductors and lower heat conductors. The outer surfaces of the two ends of the row tubes are provided with rubber sleeves, the row tubes are plugged into the collecting tubes through the rubber sleeves, the collecting tubes are provided with installation components, and the collecting tubes are connected to the upper heat conductor and the lower heat conductor through the installation components.

[0006] In a preferred embodiment, the upper heat conductor and the lower heat conductor have the same structure, the upper heat conductor includes multiple sections of heat-conducting flat plates and multiple sections of heat-conducting ring plates, the multiple sections of heat-conducting flat plates and the multiple sections of heat-conducting ring plates are staggered and connected in an integral manner, the size of the heat-conducting ring plates is adapted to the size of the row of pipes, and the row of pipes is arranged between adjacent heat-conducting ring plates.

[0007] In a preferred embodiment, the opposing surfaces of the upper heat conductor and the lower heat conductor are both provided with a thermally conductive coating, and the thermally conductive coating is a thermally conductive silicone grease layer.

[0008] In a preferred embodiment, one end of one of the headers is provided with a medium input port, and one end of the other header is provided with a medium output port.

[0009] In a preferred embodiment, the outer surfaces of both ends of the row pipe are fixedly connected to limiting rings, one end of the rubber sleeve abuts against the end surface of the limiting ring, the outer surface of the row pipe is fixedly connected to a docking plate, and slots are provided on the docking plate and the row pipe, and the row pipe is elastically inserted into the corresponding slots of the docking plate and the row pipe through the rubber sleeve.

[0010] In a preferred embodiment, the ring frame is arranged on the outside of the collecting pipe, one end of a pair of ring frames is fixedly connected to a fixing plate, a pair of fixing plates are threadedly connected with screws, a pair of fixing plates are respectively located on the opposite back sides of the upper heat conductor and the lower heat conductor, and screw grooves for screw threaded connection are opened on the upper heat conductor and the lower heat conductor.

[0011] In a preferred embodiment, an anti-slip pad is fixedly connected to the inner side surface of the ring frame.

[0012] Technical effects and advantages of the utility model:

[0013] 1. A large-size flat-plate solar collector flow channel structure is provided with an upper heat conductor and a lower heat conductor distributed up and down, and a multi-section heat-conducting flat plate and a multi-section heat-conducting ring plate are staggered and connected in an integral manner. The heat-conducting ring plate is positioned to realize wrapped heat conduction for the row pipe, thereby increasing the heat absorption area of ​​the row pipe, and in combination with the heat-conducting coating arranged on the opposite surfaces of the upper heat conductor and the lower heat conductor, the heat-conducting area of ​​the heat conductor can be increased, thereby improving the efficiency of the row pipe in heating the medium.

[0014] 2. This large-size flat-plate solar collector flow channel structure utilizes upper and lower heat conductors distributed up and down to arrange the setting positions of the row pipes. The row pipes can be sealed and plugged with the collecting pipes using rubber sleeves, and the docking plate can ensure that the end face of the rubber sleeve is effectively abutted between the docking plate and the limit ring, which can improve the sealing of the rubber sleeve position. Subsequently, the installation assembly is used to fasten the row pipes to the upper and lower heat conductors, thus completing the assembly of the entire flow channel structure. While ensuring the stability of the connection between the row pipes and the collecting pipes, the convenience of disassembly and assembly of the row pipes and the collecting pipes can be met. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a flow channel structure of a large-size flat-plate solar collector of the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the upper heat conductor and the lower heat conductor of the utility model;

[0017] Figure 3 It is a schematic diagram of the planar structure of the upper heat conductor, the lower heat conductor and the row pipe of the utility model;

[0018] Figure 4 It is a three-dimensional connection diagram of the row pipe and the header of the utility model;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the installation component of the utility model.

[0020] The accompanying drawings are marked as follows: 1. row pipe; 2. upper heat conductor; 21. heat-conducting flat plate; 22. heat-conducting ring plate; 3. lower heat conductor; 4. rubber sleeve; 5. collecting pipe; 6. installation assembly; 61. ring frame; 62. fixing plate; 63. screw; 7. limiting ring; 8. docking plate; 9. thermal conductive coating; 10. anti-slip pad. DETAILED DESCRIPTION

[0021] 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.

[0022] Combined with reference Figure 1-Figure 5 The utility model provides a large-size flat-plate solar collector flow channel structure, including a plurality of row pipes 1 and two headers 5, the two headers 5 are respectively arranged at the two ends of the row pipes 1, and the combination of the row pipes 1 and the two headers 5 can constitute a medium flow channel for the collector.

[0023] In this embodiment, one end of one of the headers 5 is provided with a medium input port, and one end of the other header 5 is provided with a medium output port.

[0024] The medium input port and the medium output port can be connected to the water storage tank for the solar heater through independent external pipelines, so that the heated medium can be used conveniently.

[0025] In this embodiment: an upper heat conductor 2 and a lower heat conductor 3 are arranged on the outer side of multiple row tubes 1. The upper heat conductor 2 and the lower heat conductor 3 have the same structure. The upper heat conductor 2 includes multiple sections of heat-conducting flat plates 21 and multiple sections of heat-conducting ring plates 22. The multiple sections of heat-conducting flat plates 21 and the multiple sections of heat-conducting ring plates 22 are staggered and connected in an integral manner. The size of the heat-conducting ring plate 22 is adapted to the size of the row tube 1, and the row tube 1 is arranged between adjacent heat-conducting ring plates 22.

[0026] The arrangement of the upper heat conductor 2 and the lower heat conductor 3 in the present application optimizes the plate structure of the traditional heat conducting plate. The upper heat conductor 2 and the lower heat conductor 3 have the characteristics of heat conducting materials. By arranging a heat conducting ring plate 22 that matches the size of the row pipe 1, the contact area between the row pipe 1 and the heat conducting structure can be increased. In this way, when the upper heat conductor 2 absorbs solar radiation to obtain heat, the heat can be directly transferred to the lower heat conductor 3, and the heat obtained on the upper heat conductor 2 and the lower heat conductor 3 can be transferred to the medium in the row pipe 1, so that the medium can be quickly heated.

[0027] In this embodiment: the opposite surfaces of the upper heat conductor 2 and the lower heat conductor 3 are both provided with a thermal conductive coating 9, and the thermal conductive coating 9 is a thermal conductive silicone grease layer.

[0028] The thermal grease layer can increase the thermal conductivity between the upper thermal conductor 2 and the lower thermal conductor 3 , so that the upper thermal conductor 2 and the lower thermal conductor 3 can achieve a surrounding heat conduction effect on the row pipe 1 .

[0029] In this embodiment: rubber sleeves 4 are provided on the outer surfaces of both ends of the row pipe 1 , and the row pipe 1 is plugged into the header 5 through the rubber sleeves 4 .

[0030] The rubber sleeve 4 is arranged in a T-shaped structure, and the rubber sleeve 4 can play a sealing role between the row pipe 1 and the header 5 .

[0031] In this embodiment: the outer surfaces of both ends of the row pipe 1 are fixedly connected to the limiting ring 7, one end of the rubber sleeve 4 abuts against the end surface of the limiting ring 7, the outer surface of the row pipe 1 is fixedly connected to the docking plate 8, and the docking plate 8 and the row pipe 1 are provided with slots. The row pipe 1 is elastically inserted into the corresponding slots of the docking plate 8 and the row pipe 1 through the rubber sleeve 4.

[0032] When in use, first place a plurality of row tubes 1 in the heat-conducting ring plate 22 of the upper heat conductor 2 or the lower heat conductor 3, then cover and dock the upper heat conductor 2 with the lower heat conductor 3, at this time, hold the header 5 and push it into one end of the row tube 1 with the rubber sleeve 4, so that the two headers 5 can be docked and connected with the plurality of row tubes 1.

[0033] On the one hand, the setting of the limit ring 7 can limit the displacement of the rubber sleeve 4. On the other hand, when the upper heat conductor 2 and the lower heat conductor 3 are set on the outside of the row pipe 1, the pair of limit rings 7 on the row pipe 1 can constrain the row pipe 1, which can facilitate the positioning of the row pipe 1. The advantage of the setting of the docking plate 8 is that, since the collecting pipe 5 is a cylindrical tube structure, in order to ensure that the rubber sleeve 4 and the outside of the collecting pipe 5 are effectively fitted, the setting of the outer plane of the docking plate 8 is used to increase the fit with the rubber sleeve 4, which can increase the sealing of the rubber sleeve 4.

[0034] In this embodiment: a mounting assembly 6 is provided on the manifold 5, and the manifold 5 is connected to the upper heat conductor 2 and the lower heat conductor 3 through the mounting assembly 6. The mounting assembly 6 includes a pair of ring frames 61, and the pair of ring frames 61 are connected by hinges. The ring frames 61 are arranged on the outside of the manifold 5, and one end of the pair of ring frames 61 is fixedly connected to a fixing plate 62, and the pair of fixing plates 62 are threadedly connected with screws 63. The pair of fixing plates 62 are respectively located on the opposite back sides of the upper heat conductor 2 and the lower heat conductor 3, and screw grooves for threaded connection of the screws 63 are opened on the upper heat conductor 2 and the lower heat conductor 3.

[0035] After the two collecting pipes 5 are connected with the multiple row pipes 1, a pair of foldable ring frames 61 are manually clamped on the outside of the collecting pipes 5. At this time, a pair of fixing plates 62 can correspond to the opposite back sides of the upper heat conductor 2 and the lower heat conductor 3. Screws 63 are used to thread through the fixing plates 62, the upper heat conductor 2 and the lower heat conductor 3 in sequence, so that the position of the collecting pipes 5 can be locked, and the upper heat conductor 2 and the lower heat conductor 3 can be fixed at the same time. In this way, the flow channel positions of the collecting pipes 5 and the row pipes 1 can be stabilized. Similarly, the convenience of disassembly and assembly of the collecting pipes 5 and the row pipes 1 is satisfied.

[0036] It is worth noting that the screw 63 in the present application can adopt an M4 type fixing part. When the screw 63 is connected to the fixing plate 62, the upper heat conductor 2 and the lower heat conductor 3, a partial thread section can be reserved, and the thread section can be connected to the mounting surface of the solar collector, thereby improving the utilization rate of the screw 63.

[0037] In this embodiment, the inner side surface of the ring frame 61 is fixedly connected with an anti-slip pad 10 .

[0038] The anti-skid pad 10 can increase the anti-skid property of the connection between the ring frame 61 and the header 5 , thereby improving the stability of the fixing of the header 5 .

Claims

1. A large-size flat-plate solar collector flow channel structure, characterized in that: The invention comprises a plurality of row tubes (1) and two headers (5), wherein the two headers (5) are respectively arranged at the two ends of the row tubes (1), an upper heat conductor (2) and a lower heat conductor (3) are arranged on the outer sides of the plurality of row tubes (1), rubber sleeves (4) are arranged on the outer surfaces of the two ends of the row tubes (1), the row tubes (1) are plugged into the headers (5) through the rubber sleeves (4), a mounting assembly (6) is arranged on the headers (5), and the headers (5) are connected to the upper heat conductor (2) and the lower heat conductor (3) through the mounting assembly (6).

2. A large-size flat-plate solar collector flow channel structure according to claim 1, characterized in that: The upper heat conductor (2) and the lower heat conductor (3) have the same structure. The upper heat conductor (2) comprises a plurality of heat-conducting flat plates (21) and a plurality of heat-conducting ring plates (22). The plurality of heat-conducting flat plates (21) and the plurality of heat-conducting ring plates (22) are arranged in an interlaced and integral manner. The size of the heat-conducting ring plates (22) is adapted to the size of the row of pipes (1). The row of pipes (1) is arranged between adjacent heat-conducting ring plates (22).

3. The large-size flat-plate solar collector flow channel structure according to claim 1, characterized in that: The opposing surfaces of the upper heat conductor (2) and the lower heat conductor (3) are both provided with a heat-conducting coating (9), and the heat-conducting coating (9) is a heat-conducting silicone grease layer.

4. The large-size flat-plate solar collector flow channel structure according to claim 1, characterized in that: One end of one of the headers (5) is provided with a medium input port, and one end of the other header (5) is provided with a medium output port.

5. The large-size flat-plate solar collector flow channel structure according to claim 1, characterized in that: The outer surfaces of both ends of the row pipe (1) are fixedly connected to limit rings (7), one end of the rubber sleeve (4) abuts against the end surface of the limit ring (7), the outer surface of the row pipe (1) is fixedly connected to a docking plate (8), the docking plate (8) and the row pipe (1) are both provided with slots, and the row pipe (1) is elastically inserted into the corresponding slots of the docking plate (8) and the row pipe (1) through the rubber sleeve (4).

6. The large-size flat-plate solar collector flow channel structure according to claim 1, characterized in that: The mounting assembly (6) comprises a pair of ring frames (61), the pair of ring frames (61) are connected by a hinge, the ring frames (61) are arranged on the outside of the header (5), one end of the pair of ring frames (61) is fixedly connected to a fixing plate (62), the pair of fixing plates (62) are threadedly connected with screws (63), the pair of fixing plates (62) are respectively located on the opposite back sides of the upper heat conductor (2) and the lower heat conductor (3), and the upper heat conductor (2) and the lower heat conductor (3) are both provided with screw grooves for threaded connection with the screws (63).

7. A large-size flat-plate solar collector flow channel structure according to claim 6, characterized in that: An anti-slip pad (10) is fixedly connected to the inner side surface of the ring frame (61).

Images