Tube-fin integrated air heat exchange tube

Abstract

The utility model relates to the technical field of air heat exchangers, and discloses a tube-fin integrated air heat exchange tube which comprises a heat exchanger structure, fins are arranged on the surfaces of cooling fins, grooves are formed in the surfaces of the cooling fins and on the opposite sides of the fins, the fins are arranged on the cooling fins, and the fins are used for increasing the heat exchange area and the positioning distance. The whole radiating fin is integrally formed by casting, the heat exchange tubes are arranged according to a certain size and positioning requirement, aluminum alloy is used for casting outside the heat exchange tubes, finally a whole is formed, the heat exchanger is designed in a modularized mode and can be combined at will, different use occasions are met, in the working process, a secondary refrigerant flows in the tubes, air flows out of the radiating fin, and due to the fact that the tube fins are integrally cast, heat exchange efficiency is improved. Meanwhile, the heat exchange tubes are arranged closely, fins are arranged on the cooling fins, the heat exchange efficiency of the heat exchanger is improved by more than 50% compared with a common expanded connection type fin heat exchanger, the weight of the heat exchanger can be greatly reduced, the size of the heat exchanger is reduced, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air heat exchangers, and specifically relates to a tube-fin integrated air heat exchange tube. Background Technique

[0002] The air heat exchanger is a core component of the air conditioning system, and its application range is very wide. It is mainly used for heat exchange between air and refrigerant, and can also be used for heat exchange between cold (hot) water and air, or heat exchange between hot oil and air. The heat exchange efficiency of the heat exchanger directly affects the efficiency of the air conditioning system.

[0003] The main structural form of the current air heat exchanger is the tube-fin type. Generally, the punched fins are sleeved on the heat exchange tube, and the fins are closely attached to the heat exchange tube through mechanical or hydraulic expansion tube. The refrigerant or coolant flows inside the tube, and the air flows outside the tube for heat exchange. Some heat exchangers use heat dissipation fins wound around the heat exchange tube and fixed by spot welding. Since there are gaps between the fins and the heat exchange tube, the heat exchange performance is seriously affected. Therefore, the volume of the air heat exchanger is relatively large and the cost is relatively high. At the same time, the fins are very thin, generally only 0.1-0.2 mm, which makes the fins very easy to deform due to collision, thus affecting the performance of the heat exchanger.

[0004] Therefore, we propose a tube-fin integrated air heat exchange tube to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the utility model is to provide a tube-fin integrated air heat exchange tube to solve the problem that the heat exchange performance is seriously affected due to the gap between the fins and the heat exchange tube in the above-mentioned background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a tube-fin integrated air heat exchange tube, including a heat exchanger structure, the heat exchanger structure includes a heat exchanger matrix and heat dissipation fins installed on one side of the heat exchanger matrix. One end of the upper side of the heat exchanger matrix is provided with a collecting outlet pipe, and one end of the lower side of the heat exchanger matrix is provided with a collecting inlet pipe;

[0007] The surface of the heat dissipation fins is provided with ribs, and grooves are formed on the surface of the heat dissipation fins on the side opposite to the ribs.

[0008] Preferably, a tube hole is penetrated through the middle end of the heat dissipation fins.

[0009] Preferably, the heat exchanger matrix includes a heat exchange tube and a positioning piece sleeved on the outer surface of the heat exchange tube.

[0010] Preferably, a bent tube is installed between the same-side ports of the heat exchanger matrix.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) A tube-fin integrated air heat exchange tube provided by the present utility model has fins on the heat sink. The fins are used to increase the heat exchange area and position and distance. The entire heat sink is integrally cast. According to certain dimensions and positioning requirements, the heat exchange tubes are arranged, and aluminum alloy is used for casting outside the heat exchange tubes, and finally a whole is formed. The heat exchanger matrix is modularly designed and can be combined at will to meet different usage occasions.

[0013] (2) For a tube-fin integrated air heat exchange tube provided by the present utility model, when working, the coolant flows inside the tube, and the air flows outside the heat sink. Since the tube and fin are integrally cast, and at the same time the heat exchange tubes are arranged closely, and there are fins on the heat sink, the heat exchange efficiency of the heat exchanger structure is increased by more than 50% compared with the ordinary expanded fin heat exchanger. It can greatly reduce the weight of the heat exchanger, reduce the size of the heat exchanger, and improve the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 is a schematic diagram of the heat exchanger matrix structure of the present utility model;

[0016] Figure 3 is a schematic diagram of the heat sink structure of the present utility model.

[0017] In the figure: 1. Heat exchanger structure; 11. Heat exchanger matrix; 111. Heat exchange tube; 112. Positioning piece; 113. Elbow; 12. Heat sink; 121. Fin; 122. Groove; 123. Tube hole; 13. Collection outlet pipe; 14. Collection inlet pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Hereinafter, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in 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 work fall within the protection scope of the present utility model.

[0019] Embodiment 1: Please refer to Figures 1-3 , a tube-fin integrated air heat exchange tube, including a heat exchanger structure 1. The heat exchanger structure 1 includes a heat exchanger matrix 11 and a heat sink 12 installed on one side of the heat exchanger matrix 11. One end of the upper side of the heat exchanger matrix 11 is provided with a collection outlet pipe 13, and one end of the lower side of the heat exchanger matrix 11 is provided with a collection inlet pipe 14. The collection outlet pipe 13 is the coolant outlet, and the collection inlet pipe 14 is the coolant inlet.

[0020] The surface of the heat sink 12 is provided with fins 121, and a groove 122 is formed on the surface of the heat sink 12 on the side opposite to the fins 121. The groove 122 is used to position the distance between two heat sinks 12, leaving an air passage.

[0021] A tube hole 123 is formed through the middle end of the heat sink 12 for dissipating heat from the heat sink 12.

[0022] The heat exchanger base 11 includes heat exchange tubes 111 and positioning pieces 112 sleeved on the outer surface of the heat exchange tubes 111 to position multiple groups of arranged heat exchange tubes 111.

[0023] A bent pipe 113 is installed between the same-side ports of the heat exchanger base 11, and the bent pipe 113 is integrally bent.

[0024] In this embodiment: First, a single heat exchange tube 111 is bent into a snake shape through a mold, a positioning piece 112 is sleeved on the heat exchange tube 111, the heat exchange tube 111 bent into a snake shape and the bent pipe 113 are placed in a metal mold, multiple layers are placed according to a certain rule, and the melted aluminum alloy is injected into the metal mold for casting to obtain the heat sink 12. The heat sink 12 has fins 121 and grooves 122. According to needs, the heat sinks 12 are combined. When combining, the grooves 122 of one heat sink 12 are opposite to the fins 121 of another heat sink 12. The collecting pipes 13 and 14 are welded to form a radiator. Each group of heat exchange tubes forms a process. The heat sink 12 has fins 121, and the fins 121 are used to increase the heat exchange area and position and fix the distance. The entire heat sink 12 is integrally cast. According to certain dimensions and positioning requirements, the heat exchange tubes 111 are arranged, and the heat exchange tubes 111 are cast with aluminum alloy on the outside to finally form an integral body. The heat exchanger base 11 is modularly designed and can be combined at will to meet different usage occasions. When working, the cooling agent flows inside the tubes, and the air flows outside the heat sink 12. Since the tube fins are integrally cast and the heat exchange tubes 111 are arranged closely, and the heat sink 12 has fins, the heat exchange efficiency of the heat exchanger structure 1 is increased by more than 50% compared with that of a common expansion joint type fin heat exchanger, which can greatly reduce the weight of the heat exchanger, reduce the size of the heat exchanger, and improve the heat exchange efficiency.

[0025] Working principle: The heat exchange efficiency is improved by casting the heat exchanger base 11 and the heat sink 12 together, the volume and weight of the heat exchanger structure 1 are reduced, the cost of the heat exchanger structure 1 is reduced, the service life of the air conditioner is extended, the COP value of the air conditioning equipment is increased, the energy consumption of the air conditioning equipment is reduced, and the carbon reduction effect is achieved.

[0026] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0027] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tube-fin air heat exchange tube, comprising a heat exchanger structure (1), characterized in that: The heat exchanger structure (1) comprises a heat exchanger base (11) and a heat sink (12) mounted on one side of the heat exchanger base (11); a collecting outlet pipe (13) is mounted on one end of the upper side of the heat exchanger base (11); and a collecting inlet pipe (14) is mounted on one end of the lower side of the heat exchanger base (11); The surface of the heat sink (12) is provided with ribs (121), and the surface of the heat sink (12) and on the side opposite to the ribs (121) is provided with grooves (122).

2. The tube-fin air heat exchange tube according to claim 1, characterized in that: A tube hole (123) is provided through the middle end of the heat sink (12).

3. The tube-fin air heat exchange tube according to claim 1, characterized in that: The heat exchanger base (11) comprises a heat exchange tube (111) and a positioning sheet (112) sleeved on the outer surface of the heat exchange tube (111).

4. The tube-fin air heat exchange tube according to claim 3, characterized in that: A bent pipe (113) is installed between ports on the same side of the heat exchanger base (11).

Images