Heat exchanger for aluminum brazing type clothes dryer

Abstract

The utility model relates to the technical field of heat exchangers of clothes dryers, in particular to a heat exchanger for an aluminum brazing type clothes dryer, which overcomes the defects of heat exchangers of clothes dryers in the prior art and comprises a right end plate arranged on one side of a left end plate, and a plurality of corresponding pipe grooves are arranged on the surfaces of the right end plate and the left end plate. An inlet groove and an outlet groove are respectively formed in the surface of the right end plate, an evaporation pipe is arranged in the pipe groove, a plurality of fins are arranged on the surface of the evaporation pipe, the fins are wave-shaped, the wave crest and wave trough length of the corrugation of each fin is 3.175 mm, and the height of each fin is 0.8 mm. The heat exchanger has the advantages of being high in practicability and good in heat exchange and evaporation effect.

Description

Technical Field

[0001] This utility model relates to the technical field of heat exchangers for clothes dryers, specifically to a heat exchanger for an aluminum brazed clothes dryer. Background Technology

[0002] A dryer is a device used to automatically dry wet clothes after the washing process is completed. Dryers are generally installed behind the drum inside the washing machine. As the drum rotates, hot air is blown into the drum to dry the wet clothes. Therefore, dryers generate a large amount of heat. This heat is not only unstable with large temperature differences, but also leaves a lot of residual heat inside the washing machine after the clothes are dried. If this residual heat is not dissipated in time, it will affect the lifespan of the washing machine itself. In severe cases, it can cause the washing machine to malfunction and become unusable, resulting in significant property damage. Existing dryers use heat exchanger fins with generally poor heat dissipation, and the heat exchange tubes are made of copper, which increases production costs. Improvements are needed.

[0003] Therefore, it is essential to design a heat exchanger for an aluminum brazed dryer that is both practical and has good heat exchange and evaporation performance. Utility Model Content

[0004] The purpose of this invention is to provide a heat exchanger for an aluminum brazed clothes dryer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat exchanger for an aluminum brazed clothes dryer, comprising a right end plate disposed on one side of a left end plate, and several corresponding tube grooves disposed on the surfaces of both the right and left end plates, with an inlet groove and an outlet groove disposed on the surface of the right end plate, an evaporation tube disposed inside the tube groove, and several fins disposed on the surface of the evaporation tube, the fins being wavy, with the crest and trough length of the fin corrugations being 3.175 mm and the height being 0.8 mm.

[0006] According to the above technical solution, an inlet pipe is provided on one side of the inlet tank, and an outlet pipe is provided on one side of the outlet tank. The inlet pipe and the outlet pipe are copper pipes, and the evaporation pipe is an aluminum pipe. The inlet pipe, the outlet pipe and the evaporation pipe are fixedly connected, and the inner walls of the inlet pipe, the outlet pipe and the evaporation pipe are provided with threads.

[0007] According to the above technical solution, the evaporator is a U-shaped tube.

[0008] According to the above technical solution, the inlet channel and the outlet channel are symmetrically distributed on both sides of the right end plate.

[0009] According to the above technical solution, some of the evaporator tubes are arranged horizontally in parallel, while others are arranged in parallel at an angle of 60°.

[0010] According to the above technical solution, the adjacent pipes are arranged in parallel in the longitudinal direction and staggered in the transverse direction, and the pipes are densely and orderly distributed on the entire surface of the left end plate and the right end plate.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0012] (1) By setting corrugated fins, one end of the inlet pipe and the outlet pipe extend outside the right end plate, and the other end is fixedly connected to the evaporator pipe. The inlet pipe and the outlet pipe are made of copper, which has better thermal conductivity and can quickly transfer heat from the heat source to the heat sink. Since the evaporator pipe is long, aluminum can be used to reduce costs and reduce the overall weight, making it suitable for more working scenarios and reducing the diameter of the evaporator pipe. The outer diameter of the inlet pipe 4 and the outlet pipe is large, and the inner diameter is adapted to the evaporator pipe. With the smaller diameter evaporator pipe, more evaporator pipes can be inserted in the fins. The surface of the heat sink is designed with a dense fin structure. By increasing the surface area, the heat is released into the air more quickly. The fin corrugation has a peak and trough length of 3.175mm and a height of 0.8mm. The longer wavelength effectively improves the anti-dust accumulation ability, while the heat exchange efficiency remains at a relatively good level. Compared with dense corrugations, it can reduce manufacturing costs. The design of 3.175mm wavelength + 0.8mm height achieves the best balance between efficiency, energy consumption and maintenance costs.

[0013] (2) By setting up an evaporator tube arrangement, the evaporator tube arrangement can greatly improve the fin area utilization rate and improve work efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the right end plate of this utility model;

[0016] Figure 3 This is a schematic diagram of the groove on the left end plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the groove on the right end plate of this utility model;

[0018] Figure 5 This is a schematic diagram of the fin corrugations of this utility model;

[0019] Figure 6 This is a schematic diagram of the evaporator tube of this utility model;

[0020] In the diagram: 1. Left end plate; 2. Right end plate; 3. Fins; 4. Inlet pipe; 5. Outlet pipe; 6. Evaporator pipe; 7. Tube groove; 8. Inlet groove; 9. Outlet groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-6 This utility model provides a technical solution: a heat exchanger for an aluminum brazed clothes dryer, including a left end plate 1, a right end plate 2 on one side of the left end plate 1, and several corresponding tube grooves 7 on the surface of both the right end plate 2 and the left end plate 1. An inlet groove 8 and an outlet groove 9 are respectively provided on the surface of the right end plate 2. An evaporator tube 6 is provided inside the tube groove 7. Several fins 3 are provided on the surface of the evaporator tube 6. The fins 3 are wavy. An inlet pipe 4 is provided on one side of the inlet groove 8, and an outlet pipe 5 is provided on one side of the outlet groove 9. The inlet pipe 4 and the outlet pipe 5 are copper pipes, and the evaporator tube 6 is an aluminum pipe. The inlet pipe 4, the outlet pipe 5 and the evaporator tube 6 are fixedly connected. The inner walls of the inlet pipe 4, the outlet pipe 5 and the evaporator tube 6 are provided with threads.

[0023] Specifically, both the inlet pipe 4 and the outlet pipe 5 extend one end outside the right end plate 2, and the other end is fixedly connected to the evaporator pipe 6. The inlet pipe 4 and outlet pipe 5 are made of copper, which has better thermal conductivity and can quickly transfer heat from the heat source to the heat sink. The evaporator pipe 6, due to its longer length, is made of aluminum, which reduces costs and overall weight, making it suitable for more working scenarios. Furthermore, the diameter of the evaporator pipe 6 is reduced. The outer diameter of the inlet pipe 4 and outlet pipe 5 is larger, while the inner diameter matches that of the evaporator pipe 6. This allows for the insertion of more evaporator pipes 6 into the fins. The inner walls of tube 5 and evaporator tube 6 are threaded, which increases the contact area between the refrigerant inside the tube and the inner wall of the copper tube, thereby increasing strength and heat exchange area. The radiator surface is designed with a dense fin structure, which accelerates the release of heat into the air by increasing the surface area. The fin corrugations have a peak and trough length of 3.175 mm and a height of 0.8 mm. The longer wavelength effectively improves the resistance to dust accumulation, while maintaining a relatively high heat exchange efficiency. Compared with dense corrugations, it can reduce manufacturing costs. The design of 3.175 mm wavelength + 0.8 mm wave height achieves the best balance between efficiency, energy consumption and maintenance costs.

[0024] Evaporator tube 6 is a U-shaped tube.

[0025] Specifically, the U-shaped tube can increase the contact area between the evaporator tube 6 and the fins, thereby improving the heat exchange efficiency.

[0026] The inlet channel 8 and the outlet channel 9 are symmetrically distributed on both sides of the right end plate 2.

[0027] Specifically, placing the inlet and outlet on opposite sides can effectively avoid heat conflict and reduce the possibility of affecting heat exchange.

[0028] Some of the evaporator tubes 6 are arranged horizontally in parallel, while others are arranged at an angle of 60° in parallel. Adjacent tube slots are arranged in parallel longitudinally and staggered laterally. The tube slots are densely and orderly distributed across the entire surface of the left and right end plates.

[0029] Specifically, the orderly arrangement of the tube trough and evaporator tubes can effectively utilize the heat dissipation effect of the fins 3 and avoid uneven utilization of the fin area affecting the heat exchange effect. The arrangement of the evaporator tubes 6 can significantly improve the fin area utilization rate and improve working efficiency.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heat exchanger for an aluminum brazed clothes dryer, comprising a left end plate (1), characterized in that: A right end plate (2) is provided on one side of the left end plate (1). The surfaces of the right end plate (2) and the left end plate (1) are provided with a number of corresponding tube grooves (7). The surface of the right end plate (2) is provided with an inlet groove (8) and an outlet groove (9). An evaporation tube (6) is provided inside the tube groove (7). A number of fins (3) are provided on the surface of the evaporation tube (6). The fins (3) are wavy. The length of the crest and trough of the fin (3) is 3.175 mm and the height is 0.8 mm.

2. The heat exchanger for an aluminum brazed clothes dryer according to claim 1, characterized in that: An inlet pipe (4) is provided on one side of the inlet tank (8), and an outlet pipe (5) is provided on one side of the outlet tank (9). The inlet pipe (4) and the outlet pipe (5) are copper pipes, and the evaporation pipe (6) is an aluminum pipe. The inlet pipe (4), the outlet pipe (5) and the evaporation pipe (6) are fixedly connected. The inner walls of the inlet pipe (4), the outlet pipe (5) and the evaporation pipe (6) are provided with threads.

3. The heat exchanger for an aluminum brazed clothes dryer according to claim 2, characterized in that: The evaporator tube (6) is a U-shaped tube.

4. The heat exchanger for an aluminum brazed clothes dryer according to claim 1, characterized in that: The inlet groove (8) and outlet groove (9) are symmetrically distributed on both sides of the right end plate (2).

5. The heat exchanger for an aluminum brazed clothes dryer according to claim 1, characterized in that: Some of the evaporator tubes (6) are arranged horizontally in parallel, while others are arranged at an angle of 60° in parallel.

6. The heat exchanger for an aluminum brazed clothes dryer according to claim 5, characterized in that: The adjacent pipes are arranged in parallel in the longitudinal direction and staggered in the transverse direction. The pipes are densely and orderly distributed on the entire surface of the left end plate (1) and the right end plate (2).

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