Double-effect evaporative air conditioner heat exchanger

Abstract

The utility model provides a kind of double-effect evaporative air conditioner heat exchanger, belong to mechanical technical field.The double-effect evaporative air conditioner heat exchanger, including left and right side plates, between them are installed with up and down misaligned double heat exchange components, each contains heat exchange tube, elbow and refrigerant pipeline, and is sealed by processing.The core innovation is in unique heat exchange fin assembly, and up and down misaligned fin is fixed by connecting block, and fin end portion is equipped with gap slot, and arc hole is arranged in inside, and connecting block side wall is equipped with ball. During installation, fin gap slot is seamlessly attached with the outer wall of heat exchange tube, ball is embedded in arc hole, and firm clamping is realized.This design not only increases heat exchange area by double-effect misaligned layout, and the close attachment of fin and pipe wall also reduces thermal resistance, improves heat transfer efficiency.More importantly, modular fin assembly is easy to disassemble as a whole, greatly simplifies cleaning and maintenance process, reduces cost, prolongs equipment life, and ensures long-term efficient and stable operation of air conditioner.

Description

Technical Field

[0001] This application relates to the field of machinery, and more specifically, to a dual-effect evaporative air conditioning heat exchanger. Background Technology

[0002] As a key component of modern air conditioning systems, the double-effect evaporative heat exchanger plays a decisive role in the overall efficiency of the system due to its high-efficiency heat exchange performance. With the rapid advancement of industry and technology, heat exchangers, as core energy transfer equipment, are playing an increasingly significant role in system efficiency and operating costs. Among various types of heat exchangers, the double-effect evaporative heat exchanger, with its unique design and excellent energy-saving characteristics, is gaining increasing favor in the air conditioning industry.

[0003] Existing dual-effect evaporative air conditioning heat exchangers typically employ a finned tube structure. The fins, a key component of the heat exchanger, are made of highly thermally conductive materials such as aluminum or copper. Their design significantly increases the surface area of ​​the heat exchanger, thereby improving heat exchange efficiency with the external environment. The spacing, shape, and arrangement of the fins are optimized to ensure that air or other fluids can flow fully through them, achieving excellent heat exchange performance. This structure not only improves heat exchange efficiency but also makes the heat exchanger more compact, enabling a larger heat exchange area within a limited space. Despite the numerous advantages of dual-effect evaporative air conditioning heat exchangers in design and performance, some technical problems have emerged during practical use that urgently need to be addressed. The most prominent of these is the susceptibility of the fins on the heat exchange tubes to dust accumulation and damage, making cleaning difficult and ultimately leading to a decline in air conditioning performance. Utility Model Content

[0004] To overcome the above deficiencies, this application provides a dual-effect evaporative air conditioning heat exchanger to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is as follows:

[0006] A dual-effect evaporative air conditioning heat exchanger includes a left side plate and a right side plate that matches the left side plate. The first heat exchange component and the second heat exchange component are installed between the left side plate and the right side plate. The first heat exchange component and the second heat exchange component are offset from each other and are respectively fixedly installed on their outer walls. The outer wall of the heat exchange fin assembly is smaller than that of the left side plate and the right side plate.

[0007] Furthermore, the first heat exchange assembly includes several heat exchange tubes I, three sets of bends I, a refrigerant inlet pipe I, and a refrigerant outlet pipe I. The two ends of the several heat exchange tubes I are respectively installed at equal intervals on the upper part of the left side plate and the right side plate. The three sets of bends I are respectively fixedly connected to the outer ends of the several heat exchange tubes I. The refrigerant inlet pipe I is fixedly connected to one end of the heat exchange tube I set, and the refrigerant outlet pipe I is fixedly connected to the other end of the heat exchange tube I set.

[0008] Furthermore, the second heat exchange assembly includes several heat exchange tubes II, three sets of bends II, a refrigerant inlet pipe II, and a refrigerant outlet pipe II. The two ends of the several heat exchange tubes II are installed at equal intervals on the lower half of the left side plate and the right side plate. The three sets of bends II are fixedly connected to the outer ends of the several heat exchange tubes II respectively. The refrigerant inlet pipe II is fixedly connected to one end of the heat exchange tube II group, and the refrigerant outlet pipe II is fixedly connected to the other end of the heat exchange tube II group.

[0009] Furthermore, the heat exchange tube I and the bend I are respectively staggered with the heat exchange tube II and the bend II, and the connection is sealed.

[0010] Furthermore, the heat exchange fin assembly includes several upper heat exchange fins, several upper notched grooves, several lower heat exchange fins, several lower notched grooves, two sets of connecting blocks, several arc holes, and several retaining balls. The several upper heat exchange fins are fixedly connected to each other by one set of connecting blocks, and several upper notched grooves are provided at their bottom ends. The several lower heat exchange fins are fixedly connected to each other by another set of connecting blocks, and several lower notched grooves are provided at their top ends. The several upper heat exchange fins and several lower heat exchange fins are staggered and interlocked with each other. Several arc holes are provided on the inner sidewalls of the several upper notched grooves and several lower notched grooves. Several retaining balls are provided on the sidewalls of the two sets of connecting blocks. The inner walls of the several upper notched grooves and several lower notched grooves are seamlessly fitted to the outer walls of the several heat exchange tubes I and several heat exchange tubes II. The interiors of the several arc holes are interlocked with the outer walls of the several retaining balls.

[0011] Furthermore, the outer walls of the left and right side plates are provided with mounting blocks, and the mounting blocks are provided with threaded holes.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model utilizes a first heat exchange component and a second heat exchange component, which are staggered and correspond to each other. This dual-effect synergistic design significantly increases the heat exchange area. The heat exchange fin assembly consists of upper and lower heat exchange fins that are staggered and interlocked, with the inner walls of the upper and lower notches seamlessly fitting the outer walls of heat exchange tubes I and II. This design not only ensures tight contact between the heat exchange fins and heat exchange tubes, reducing thermal resistance and improving heat transfer efficiency, but also, through the interlocking method of the ball and arc hole, allows the heat exchange fin assembly to be firmly installed on the heat exchange tubes. Even under vibration and airflow impact during air conditioning operation, it maintains a good connection state, preventing loosening or displacement, thus ensuring the long-term stable operation of the heat exchanger. This heat exchange fin assembly adopts a modular design, with multiple heat exchange fins fixedly connected together by connecting blocks. When cleaning or maintenance of the heat exchange fins is required, the entire heat exchange fin assembly can be easily disassembled, eliminating the need to disassemble each heat exchange fin individually, greatly improving maintenance efficiency and reducing maintenance costs. At the same time, this design also makes it easier to clean and replace the heat exchange fins, extending the service life of the heat exchanger. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the double-effect evaporative air conditioning heat exchanger provided in the embodiments of this application;

[0016] Figure 2 A schematic diagram of the disassembly structure of the heat exchange fin assembly provided in the embodiments of this application;

[0017] Figure 3 A schematic diagram of the heat exchange fin assembly structure provided in the embodiments of this application;

[0018] Figure 4 A schematic diagram of the connection structure between the upper heat exchange fins and the connecting block provided for an embodiment of this application;

[0019] Figure 5 A schematic diagram of the connection structure between the lower heat exchange fins and the lower notch groove provided in an embodiment of this application;

[0020] Figure 6 Provided for the implementation of this application Figure 4 Enlarged structural diagram at point A in the middle;

[0021] Figure 7Provided for the implementation of this application Figure 5 Enlarged structural diagram at point B.

[0022] In the diagram: 1-Left side plate; 2-Right side plate; 3-First heat exchanger assembly; 4-Second heat exchanger assembly; 5-Heat exchanger fin assembly; 6-Mounting block; 31-Heat exchanger tube I; 32-Bend I; 33-Refrigerant inlet pipe I; 34-Refrigerant outlet pipe I; 41-Heat exchanger tube II; 42-Bend II; 43-Refrigerant inlet pipe II; 44-Refrigerant outlet pipe II; 51-Upper heat exchanger fin; 52-Upper notch groove; 53-Lower heat exchanger fin; 54-Lower notch groove; 55-Connecting block; 56-Arc hole; 57-Ball clamp. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0024] Example:

[0025] Please see Figure 1 , Figure 2 A dual-effect evaporative air conditioning heat exchanger includes a left side plate 1 and a right side plate 2 that matches the left side plate 1; mounting blocks 6 are provided on the outer walls of the left side plate 1 and the right side plate 2.

[0026] The left side plate 1 and the right side plate 2 form the main frame of the heat exchanger. Internally, they provide a robust mounting foundation for the first heat exchange component 3 and the second heat exchange component 4, ensuring the stability and rigidity of the heat exchange components during operation. The left side plate 1 and the right side plate 2 are made of high-quality cold-rolled steel. Cold-rolled steel was chosen because of its good mechanical strength, flatness, and relatively economical cost. The steel plate surface undergoes pretreatment and phosphate treatment to enhance the adhesion to the substrate.

[0027] Mounting block 6 is made of a material with strength matching that of the left side plate 1 and the right side plate 2, and is integrally molded with them. Mounting block 6 provides a standardized and reliable mounting interface for the heat exchanger. Through the threaded holes on the surface of mounting block 6, the heat exchanger can be securely fixed to the frame, housing, or other supporting structure of the air conditioning system using bolts.

[0028] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7A dual-effect evaporative air conditioning heat exchanger includes a first heat exchange component 3 and a second heat exchange component 4 installed between a left side plate 1 and a right side plate 2. The first heat exchange component 3 and the second heat exchange component 4 are staggered and correspond to each other, and a heat exchange fin assembly 5 is fixedly installed on the outer wall. The outer wall of the heat exchange fin assembly 5 is smaller than that of the left side plate 1 and the right side plate 2. The first heat exchange component 3 includes several heat exchange tubes I 31, three sets of bends I 32, a refrigerant inlet pipe I 33, and a refrigerant outlet pipe I 34. The second heat exchange component 4 includes several heat exchange tubes II 41, three sets of bends II 42, a refrigerant inlet pipe II 43, and a refrigerant outlet pipe II 44. The heat exchange fin assembly 5 includes several upper heat exchange fins 51, several upper notches 52, several lower heat exchange fins 53, several lower notches 54, two sets of connecting blocks 55, several arc holes 56, and several retaining balls 57.

[0029] The first heat exchange component 3 and the second heat exchange component 4 can be designed to operate in different temperature zones or bear different heat loads. For example, one component may be used for evaporation and heat absorption, while the other is used for condensation and heat release, or both may be used for evaporation but operate at different pressures / temperatures, creating a true "dual-effect" system. A staggered layout allows air to undergo a more complex heat and moisture exchange process as it flows through the two components. Several heat exchange tubes I31 are installed at equal intervals on the upper half of the left side plate 1 and the right side plate 2. This ensures that the heat exchange tubes I31 are securely installed and evenly spaced, facilitating smooth flow of air or other fluids between the tubes and improving heat exchange efficiency. For the refrigerant to flow smoothly between the heat exchange tubes I31, the bend I32 is connected to the heat exchange tubes I31 using a welding process. This ensures a good seal at the connection point and prevents refrigerant leakage. During welding, the welding temperature and time are strictly controlled to avoid deformation or damage to the heat exchange tubes I31 or the bend I32 due to improper welding. Refrigerant inlet pipe I33 is fixedly connected to one end of heat exchanger pipe I31, and refrigerant outlet pipe I34 is fixedly connected to the other end of heat exchanger pipe I31. Refrigerant inlet pipe I33 and refrigerant outlet pipe I34 ensure sufficient refrigerant flow and good thermal conductivity. The positions of refrigerant inlet pipe I33 and refrigerant outlet pipe I34 are designed according to the overall layout of the air conditioning system to facilitate connection with other components and achieve refrigerant circulation. Heat exchanger pipe II41 is installed at equal intervals at both ends on the lower half of the left side plate 1 and the right side plate 2, using the same installation method as heat exchanger pipe I31. Bend pipe II42 is used to connect several heat exchanger pipes II41. When connecting bend pipe II42 to heat exchanger pipe II41, welding is also used to ensure a good seal at the connection and prevent refrigerant leakage. During welding, the welding process is strictly followed to ensure welding quality. Refrigerant inlet pipe II 43 is fixedly connected to one end of heat exchanger pipe II 41, and refrigerant outlet pipe II 44 is fixedly connected to the other end of heat exchanger pipe II 41. The positions of refrigerant inlet pipe II 43 and refrigerant outlet pipe II 44 are designed according to the overall layout of the air conditioning system to facilitate connection with other components and achieve secondary circulation of refrigerant. Heat exchanger pipe I 31 and bend I 32 are staggered with heat exchanger pipe II 41 and bend II 42, respectively. This staggered design allows air or other fluids to have more complete contact with the heat exchanger pipes when flowing through the heat exchanger, improving heat exchange efficiency.

[0030] The heat exchange fin assembly 5 is used on the outer wall of the first heat exchange assembly 3 and the second heat exchange assembly 4, and assists in heat dissipation. Both the upper heat exchange fin 51 and the lower heat exchange fin 53 are made of aluminum, which has good thermal conductivity, is lightweight, and has a relatively low cost, making it suitable for air conditioning heat exchange fins. An upper notch 52 is formed at the bottom of the upper heat exchange fin 51, and a lower notch 54 is formed at the top of the lower heat exchange fin 53. The inner bottom of the notch is semi-circular, matching the outer diameter of heat exchange tube I 31 and heat exchange tube II 41. The connecting block 55 is also made of aluminum, and its function is to connect multiple upper heat exchange fins 51 or lower heat exchange fins 53 into a single unit. An arc hole 56 is formed on the inner sidewall of the upper notch 52 and the lower notch 54, with a radius of 2 mm and a depth of 1.5 mm. Two retaining balls 57 are installed on the sidewall of each connecting block 55. The retaining balls 57 are made of elastic rubber to ensure a tight engagement with the arc holes 56. The assembled upper heat exchange fins 51 and lower heat exchange fins 53 are then staggered and engaged. Specifically, the upper notch 52 at the bottom of the upper heat exchange fin 51 corresponds to the lower notch 54 at the top of the lower heat exchange fin 53, allowing the heat exchange tube to be smoothly inserted into the notch. During the engagement process, the retaining balls 57 on the sidewall of the connecting block 55 engage with the arc holes 56 on the inner sidewalls of the upper and lower notches 52 and 54, achieving a stable connection between the upper and lower heat exchange fins 51 and 53.

[0031] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A double-effect evaporative air conditioning heat exchanger, comprising a left side plate (1) and a right side plate (2) matching the left side plate (1), characterized in that: A first heat exchange component (3) and a second heat exchange component (4) are installed between the left side plate (1) and the right side plate (2). The first heat exchange component (3) and the second heat exchange component (4) are offset from each other, and a heat exchange fin assembly (5) is fixedly installed on the outer wall. The outer wall of the heat exchange fin assembly (5) is smaller than that of the left side plate (1) and the right side plate (2).

2. The dual-effect evaporative air conditioning heat exchanger according to claim 1, characterized in that, The first heat exchange assembly (3) includes several heat exchange tubes I (31), three sets of bends I (32), refrigerant inlet pipe I (33) and refrigerant outlet pipe I (34). The two ends of the several heat exchange tubes I (31) are installed at equal intervals on the upper half of the left side plate (1) and the right side plate (2). The three sets of bends I (32) are fixedly connected to the outer ends of the several heat exchange tubes I (31). The refrigerant inlet pipe I (33) is fixedly connected to one end of the heat exchange tube I (31) group, and the refrigerant outlet pipe I (34) is fixedly connected to the other end of the heat exchange tube I (31) group.

3. A double-effect evaporative air conditioning heat exchanger according to claim 2, characterized in that, The second heat exchange assembly (4) includes several heat exchange tubes II (41), three sets of bends II (42), a refrigerant inlet pipe II (43), and a refrigerant outlet pipe II (44). The two ends of the several heat exchange tubes II (41) are installed at equal intervals on the lower half of the left side plate (1) and the right side plate (2). The three sets of bends II (42) are fixedly connected to the outer ends of the several heat exchange tubes II (41). The refrigerant inlet pipe II (43) is fixedly connected to one end of the heat exchange tubes II (41) group, and the refrigerant outlet pipe II (44) is fixedly connected to the other end of the heat exchange tubes II (41) group.

4. A double-effect evaporative air conditioning heat exchanger according to claim 3, characterized in that, The heat exchange tube I (31) and the bend I (32) are respectively staggered with the heat exchange tube II (41) and the bend II (42), and the connection is sealed.

5. A double-effect evaporative air conditioning heat exchanger according to claim 4, characterized in that, The heat exchange fin assembly (5) includes several upper heat exchange fins (51), several upper notches (52), several lower heat exchange fins (53), several lower notches (54), two sets of connecting blocks (55), several arc holes (56), and several retaining balls (57). The upper heat exchange fins (51) are fixedly connected to each other by one set of connecting blocks (55), and several upper notches (52) are provided at their bottom ends. The lower heat exchange fins (53) are fixedly connected to each other by another set of connecting blocks (55), and several lower notches (54) are provided at their top ends. The upper heat exchange fins (51) and the lower heat exchange fins (53) are staggered and interlocked. The inner walls of the upper notch grooves (52) and the lower notch grooves (54) are respectively provided with the arc holes (56). The side walls of the two sets of connecting blocks (55) are respectively provided with the ball clamps (57). The inner walls of the upper notch grooves (52) and the lower notch grooves (54) are seamlessly fitted with the outer walls of the heat exchange tubes I (31) and II (41). The inside of the arc holes (56) is interlocked with the outer wall of the ball clamps (57).

6. A double-effect evaporative air conditioning heat exchanger according to claim 5, characterized in that, The outer walls of the left side plate (1) and the right side plate (2) are provided with mounting blocks (6), and the mounting blocks (6) are provided with threaded holes.

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