Large-size flat plate collector

Abstract

The utility model relates to the technical field of flat plate collectors, in particular to a large-size flat plate collector which comprises a connecting frame body, a conveying pipe is arranged in the connecting frame body, a plurality of sets of outer heat exchange pipes are arranged on the outer side of the conveying pipe, inner heat exchange pipes are arranged in the outer heat exchange pipes, and the inner heat exchange pipes are arranged in the connecting frame body. The ends, away from the conveying pipe, of the multiple sets of outer heat exchange pipes are connected through connecting pipes, and flow guide assemblies are arranged in the inner heat exchange pipes. The flow guide assembly is used for conducting flow guide treatment on water flow guided into the inner heat exchange pipe, the flow guide assembly is composed of a connecting rod and flow guide blocks, the connecting rod is located in the inner heat exchange pipe, the multiple sets of flow guide blocks are located on the outer side of the connecting rod and located in the inner heat exchange pipe, and the flow guide blocks are designed to be of a spiral structure; the size of the external structure of the flow guide block corresponds to the size of the internal structure of the internal heat exchange tube, and compared with an existing flat plate collector, the overall practicability of the flat plate collector can be improved through the design of the flat plate collector.

Description

Technical Field

[0001] The utility model relates to the technical field of flat plate collectors, in particular to large-size flat plate collectors. Background Technique

[0002] Flat plate collectors have the advantages of simple structure, low cost, stable operation of large-scale heat collection systems, etc., and have gradually become a new research hotspot in the integrated application of new wall materials and green buildings. How to improve the thermal performance and product durability of collectors has become the focus of people's attention. The heat absorption plate in the collector has the dual functions of medium flow and heat transfer, and is the core equipment for photothermal conversion.

[0003] The existing heating cycle path of the full-flow flat plate collector is short, the heat transfer is low, the fluid flows through the pipeline at a high speed, the contact time with the heat exchange tube is short, and the cold and hot fluids in the heat exchange tube are not fully mixed, resulting in a large amount of heat loss and affecting the utilization efficiency. Therefore, for the improvement of the existing flat plate collector, it is particularly important to design a new type of large-size flat plate collector to solve the above technical defects and improve the practicability of the overall flat plate collector. Content of the Utility Model

[0004] The purpose of the utility model is to provide a large-size flat plate collector. When water flows into the interior of the inner heat exchange tube, a plurality of guide blocks can guide the water flow, start to make spiral flow, generate secondary flow, and the guide blocks play a role in forcing the fluid to form spiral flow in the tube body, lengthening the fluid flow path, lengthening the contact time between the fluid and the tube body side wall, and increasing the contact surface area between the fluid and the tube body side wall. The fluid near the inner wall of the inner heat exchange tube exchanges heat with the outer heat exchange tube, which can help improve the convective heat transfer between the water flow and the outer heat exchange tube and improve the heat exchange efficiency. The heat exchange block is in contact with the outer heat exchange tube, and the heat exchange block with a spiral structure is used to increase the contact surface, so that the contact time between the inner heat exchange tube and the outer heat exchange tube on the outside is prolonged, and the heat exchange effect is improved, so as to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A large-size flat plate collector, including a connecting frame body, a conveying pipe is arranged inside the connecting frame body, a plurality of outer heat exchange tubes are arranged outside the conveying pipe, an inner heat exchange tube is arranged inside the outer heat exchange tubes, and one ends of the plurality of outer heat exchange tubes far away from the conveying pipe are connected through a connecting pipe; a guiding component is arranged inside the inner heat exchange tube.

[0007] The guiding component is used for guiding the water flow introduced into the interior of the inner heat exchange tube, and the guiding component is composed of a connecting rod and a guide block. The connecting rod is located inside the inner heat exchange tube, and a plurality of guide blocks are all located outside the connecting rod and inside the inner heat exchange tube.

[0008] As a preferred solution of the utility model, the diversion block is designed in a spiral structure, and the external structure size of the diversion block corresponds to the internal structure size of the inner heat exchange tube.

[0009] As a preferred solution of the utility model, both ends of the connecting rod are respectively connected to the conveying pipe and the connecting pipe, and multiple groups of the diversion blocks are evenly distributed on the outer side of the connecting rod.

[0010] As a preferred solution of the utility model, multiple groups of heat exchange blocks are arranged on the outer side of the inner heat exchange tube and inside the outer heat exchange tube. The heat exchange blocks are designed in a spiral structure, and the external structure size of the heat exchange blocks corresponds to the internal structure size of the outer heat exchange tube. Both ends of the inner heat exchange tube are respectively connected to the conveying pipe and the connecting pipe.

[0011] As a preferred solution of the utility model, a conduction plate is arranged on the outer side of the outer heat exchange tube and inside the connecting frame body. Two groups of first refraction plates are arranged above multiple groups of the conduction plates inside the connecting frame body. A second refraction plate is arranged on the outer side of the first refraction plate and inside the connecting frame body.

[0012] As a preferred solution of the utility model, a connecting cover is arranged on the top of the connecting frame body. The connecting cover is a tempered glass connecting cover, and the connecting cover is connected to the connecting frame body through multiple groups of clamping blocks.

[0013] As a preferred solution of the utility model, the connecting frame body is made of 6063T5 aluminum alloy profile, and the length and width of the connecting frame body are 2285 mm and 1140 mm respectively.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. In the utility model, through the design of the inner heat exchange tube and the outer heat exchange tube, when water flow is introduced into the inside of the inner heat exchange tube, multiple groups of diversion blocks can guide the water flow to start spiral flow and generate secondary flow. The diversion blocks play a role in forcing the fluid to form spiral flow in the tube body, lengthening the fluid flow path, lengthening the contact time between the fluid and the tube body side wall, and increasing the contact surface area between the fluid and the tube body side wall. The fluid near the inner heat exchange tube wall exchanges heat with the outer heat exchange tube, which helps to improve the convective heat transfer between the water flow and the outer heat exchange tube and improve the heat exchange efficiency. The heat exchange blocks are in contact with the outer heat exchange tube, and the spiral-structured heat exchange blocks increase the contact surface, so that the contact time between the inner heat exchange tube and the outer heat exchange tube on the outside is prolonged, and the heat exchange effect is improved.

[0016] 2. In the present utility model, through the design of the connection frame body, when light shines into the interior of the connection frame body, the first refraction plate cooperates with the first refraction plate to refract the light to the outside of multiple conduction plates, so as to enhance the heat collection effect of the conduction plates. The conduction plates can conduct heat to the inside of the external heat exchange tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the internal structure of the connection frame body of the present utility model;

[0019] Figure 3 is a schematic diagram of the structures of the external heat exchange tube and the internal heat exchange tube of the present utility model;

[0020] Figure 4 is a schematic diagram of the internal heat exchange tube of the present utility model.

[0021] In the figure: 1. Connection frame body; 2. Delivery pipe; 3. External heat exchange tube; 4. Internal heat exchange tube; 5. Connection pipe; 6. Flow guiding assembly; 7. Connecting rod; 8. Flow guiding block; 9. Heat exchange block; 10. Conduction plate; 11. First refraction plate; 12. Second refraction plate; 13. Connection cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment:

[0024] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0025] A large-size flat plate collector, including a connection frame body 1, a delivery pipe 2 is arranged inside the connection frame body 1, multiple external heat exchange tubes 3 are arranged outside the delivery pipe 2, an internal heat exchange tube 4 is arranged inside the external heat exchange tubes 3, and one ends of the multiple external heat exchange tubes 3 far away from the delivery pipe 2 are connected through a connection pipe 5, and a flow guiding assembly 6 is arranged inside the internal heat exchange tube 4;

[0026] The flow guiding assembly 6 is used for guiding the water flow introduced into the internal heat exchange tube 4, and the flow guiding assembly 6 is composed of a connecting rod 7 and a flow guiding block 8. The connecting rod 7 is located inside the internal heat exchange tube 4, and multiple flow guiding blocks 8 are all located outside the connecting rod 7 and inside the internal heat exchange tube 4.

[0027] Furthermore, the flow guide block 8 is designed in a spiral structure, and the external structure size of the flow guide block 8 corresponds to the internal structure size of the inner heat exchange tube 4. Both ends of the connecting rod 7 are respectively connected to the conveying pipe 2 and the connecting pipe 5. Multiple groups of flow guide blocks 8 are evenly distributed on the outer side of the connecting rod 7. When water flow is introduced into the interior of the inner heat exchange tube 4, the multiple groups of flow guide blocks 8 can guide the water flow to start a spiral flow, generating secondary flow. The flow guide block 8 plays a role in forcing the fluid to form a spiral flow inside the pipe body, lengthening the fluid flow path, prolonging the contact time between the fluid and the pipe body side wall, and increasing the contact surface area between the fluid and the pipe body side wall. The fluid near the wall of the inner heat exchange tube 4 exchanges heat with the outer heat exchange tube 3, which helps to improve the convective heat transfer between the water flow and the outer heat exchange tube 3 and improve the heat exchange efficiency.

[0028] Secondly, multiple groups of heat exchange blocks 9 are arranged on the outer side of the inner heat exchange tube 4 and inside the outer heat exchange tube 3. The heat exchange blocks 9 are designed in a spiral structure, and the external structure size of the heat exchange blocks 9 corresponds to the internal structure size of the outer heat exchange tube 3. Both ends of the inner heat exchange tube 4 are respectively connected to the conveying pipe 2 and the connecting pipe 5. The heat exchange blocks 9 are in contact with the outer heat exchange tube 3. By using the heat exchange blocks 9 with a spiral structure, the contact surface is increased, the contact time between the inner heat exchange tube 4 and the outer heat exchange tube 3 on the outside is prolonged, and the heat exchange effect is improved.

[0029] Moreover, heat conduction plates 10 are arranged on the outer side of the outer heat exchange tube 3 and inside the connecting frame body 1. Two groups of first refraction plates 11 are arranged above the multiple groups of heat conduction plates 10 inside the connecting frame body 1. A second refraction plate 12 is arranged on the outer side of the first refraction plate 11 and inside the connecting frame body 1. When light shines into the interior of the connecting frame body 1, through the cooperation of the first refraction plate 11 and the first refraction plate 11, the light is refracted to the outer side of the multiple groups of heat conduction plates 10, increasing the heat collection effect of the heat conduction plates 10. The heat conduction plates 10 can conduct the heat to the interior of the outer heat exchange tube 3.

[0030] Furthermore, a connection cover 13 is arranged on the top of the connecting frame body 1. The connection cover 13 is a toughened glass connection cover, and the connection cover 13 is connected to the connecting frame body 1 through multiple groups of clamping blocks. By connecting the clamping blocks to the connecting frame body 1, the connection cover 13 can be connected to the connecting frame body 1. When the connecting frame body 1 is in use, the connection cover 13 can prevent impurities from entering the interior of the connecting frame body 1 and affecting the heat collection effect. Through the glass structure of the connection cover 13, light can shine into the interior of the connecting frame body 1.

[0031] Furthermore, the connecting frame body 1 is made of 6063T5 aluminum alloy profile, and the length and width of the connecting frame body 1 are 2285 mm and 1140 mm respectively.

[0032] In this embodiment, the implementation scenario is specifically as follows: during actual use, water flow is introduced into the interior of the conveying pipe 2 so that the water flow can be introduced into the interior of the inner heat exchange pipe 4. Through the glass structure of the connection cover 13, light can shine into the interior of the connection frame body 1. When the light shines into the interior of the connection frame body 1, through the cooperation of the first refraction plate 11 with the first refraction plate 11, the light is refracted to the outside of multiple conduction plates 10, so as to enhance the heat collection effect of the conduction plates 10. The conduction plates 10 can conduct heat to the interior of the outer heat exchange pipe 3. By using the heat exchange blocks 9 with a spiral structure, the contact surface is increased, so that the contact time between the inner heat exchange pipe 4 and the outer heat exchange pipe 3 on the outside is prolonged, and the heat exchange effect is improved. When the water flow is introduced into the interior of the inner heat exchange pipe 4, multiple flow guiding blocks 8 can guide the water flow to start a spiral flow and generate a secondary flow. The flow guiding blocks 8 play a role in forcing the fluid to form a spiral flow in the pipe body, lengthening the fluid flow path, lengthening the contact time between the fluid and the pipe body side wall, and increasing the contact surface area between the fluid and the pipe body side wall. The fluid near the wall of the inner heat exchange pipe 4 exchanges heat with the outer heat exchange pipe 3, which can help improve the convective heat transfer between the water flow and the outer heat exchange pipe 3 and improve the heat exchange efficiency. Compared with the existing flat plate collector, the overall practicability of the flat plate collector can be improved through the design of the present utility model.

[0033] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A large-size flat-plate collector, comprising a connection frame body (1), characterized in that: A delivery pipe (2) is provided inside the connection frame body (1), a plurality of groups of external heat exchange pipes (3) are provided outside the delivery pipe (2), an internal heat exchange pipe (4) is provided inside the external heat exchange pipe (3), and ends of the plurality of groups of external heat exchange pipes (3) away from the delivery pipe (2) are connected via a connecting pipe (5), and a flow guide assembly (6) is provided inside the internal heat exchange pipe (4); The flow guide component (6) is used to guide the water flow introduced into the inner heat exchange tube (4), and the flow guide component (6) is composed of a connecting rod (7) and a flow guide block (8), the connecting rod (7) is located inside the inner heat exchange tube (4), and multiple groups of the flow guide blocks (8) are located outside the connecting rod (7) and inside the inner heat exchange tube (4).

2. The large-size flat-plate collector according to claim 1, characterized in that: The guide block (8) is designed to have a spiral structure, and the external structure size of the guide block (8) corresponds to the internal structure size of the internal heat exchange tube (4).

3. The large-sized flat-plate collector according to claim 1, characterized in that: The two ends of the connecting rod (7) are respectively connected to the conveying pipe (2) and the connecting pipe (5), and a plurality of groups of guide blocks (8) are distributed at equal intervals on the outside of the connecting rod (7).

4. The large-sized flat-plate collector according to claim 1, characterized in that: A plurality of groups of heat exchange blocks (9) are provided on the outside of the inner heat exchange tube (4) and inside the outer heat exchange tube (3); the heat exchange blocks (9) are designed to be spirally structured; the size of the outer structure of the heat exchange blocks (9) is designed to correspond to the size of the inner structure of the outer heat exchange tube (3); and the two ends of the inner heat exchange tube (4) are respectively connected to the delivery tube (2) and the connecting tube (5).

5. The large-sized flat-plate collector according to claim 1, characterized in that: A conduction plate (10) is provided on the outside of the external heat exchange tube (3) and located inside the connection frame body (1); two groups of first refraction plates (11) are provided inside the connection frame body (1) and located above the multiple groups of conduction plates (10); and a second refraction plate (12) is provided on the outside of the first refraction plate (11) and located inside the connection frame body (1).

6. The large-sized flat-plate collector according to claim 1, characterized in that: A connection cover (13) is provided on the top of the connection frame body (1); the connection cover (13) is a tempered glass connection cover, and the connection cover (13) is connected to the connection frame body (1) via a plurality of sets of clamping blocks.

7. The large-sized flat-plate collector according to claim 1, characterized in that: The connection frame body (1) is made of 6063T5 aluminum alloy profile, and the length and width of the connection frame body (1) are 2285 mm and 1140 mm.

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