Copper pipe assembly of heat exchanger
By introducing connection mechanisms such as inlet flanges, outlet flanges, and sealing rings into the copper tube assembly of the heat exchanger, the problems of scale blockage and maintenance difficulties are solved, enabling rapid disassembly and cleaning of the copper tubes, reducing replacement costs, and extending equipment life.
Patent Information
- Application Number
- CN202423130279.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing heat exchanger copper tube assemblies are prone to scale buildup and blockage after prolonged heat exchange, and are difficult to disassemble, clean, and replace, leading to maintenance difficulties.
A connection mechanism including copper pipe, inlet flange, outlet flange, sealing ring and circulation unit was designed. The copper pipe can be quickly disassembled and installed by bolt connection and magnetic plate snap-fit. Combined with the sealing ring, the operation stability is improved and cleaning and replacement are convenient.
It enables rapid disassembly and cleaning of copper pipes, avoiding downtime of the entire machine, reducing replacement costs, extending equipment lifespan, and improving equipment flexibility and stability.
Smart Images

Figure CN223741313U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchange technology, and in particular to a copper tube assembly for a heat exchanger. Background Technology
[0002] Currently, copper tubes in heat exchangers are an important component of heat exchange systems. They are widely used due to their good thermal conductivity, corrosion resistance, and processing performance. Evaporators and condensers are commonly referred to as "two-piece evaporators." Because the first connecting pipe and the second connecting pipe need to be welded together in the copper tube assembly, the metal layer attached to the welded parts between the first connecting pipe and the second connecting pipe is easily melted. As a result, the outer surface of the copper tube assembly cannot be completely covered by the metal layer, making it difficult to prevent corrosion.
[0003] The prior art CN217979993U provides a copper tube assembly for a heat exchanger and a heat exchanger. The copper tube assembly includes a core tube structure and a protective layer. The core tube structure includes a first connecting tube and a second connecting tube welded together. The protective layer includes a metal layer and an anti-corrosion coating. The metal layer covers at least the outer surface of the first connecting tube. The anti-corrosion coating covers the outer surface of the metal layer and the outer surface of the second connecting tube. Alternatively, the anti-corrosion coating covers the outer surface of the metal layer.
[0004] However, in the existing technology, due to prolonged heat exchange, a large amount of scale will be generated inside the copper pipe. Excessive scale will cause the copper pipe to become blocked. The existing copper pipe assembly is difficult to disassemble, clean, and replace, making it difficult to maintain and repair the copper pipe assembly. Utility Model Content
[0005] The purpose of this utility model is to provide a copper tube assembly for a heat exchanger, which aims to solve the technical problem in the prior art that due to long-term heat exchange, a large amount of scale will be generated inside the copper tubes, and excessive scale will cause the copper tubes to be blocked. The existing copper tube assemblies are difficult to disassemble, clean, and replace, resulting in difficulties in the maintenance of the copper tube assemblies.
[0006] To achieve the above objectives, this utility model employs a copper tube assembly for a heat exchanger, comprising copper tubes and a connecting mechanism. The connecting mechanism includes an inlet flange, an outlet flange, sealing rings, and a circulation unit. Multiple sets of copper tubes, multiple sets of inlet flanges, and multiple sets of outlet flanges are used. Each set of inlet flanges is fixedly connected to a corresponding copper tube and fitted onto the outer wall of the corresponding copper tube. Each set of outlet flanges is fixedly connected to a copper tube and fitted onto the outer wall of the corresponding copper tube. Both ends of each set of copper tubes are detachably connected to the circulation unit via bolts and are located on one side of the circulation unit, with each set of copper tubes communicating with the circulation unit. Multiple sets of sealing rings are used, each set of sealing rings is embedded inside the circulation unit, and each set of sealing rings is located between the corresponding copper tube and the circulation unit.
[0007] The circulation unit includes an inlet chamber, a drain chamber, a connecting component, and a snap-fit component. The inlet chamber is detachably connected to the snap-fit component and is located on one side of the snap-fit component. The drain chamber is detachably connected to the snap-fit component and is located on one side of the snap-fit component. There are two sets of connecting components. Each set of connecting components is connected to the corresponding inlet chamber and the corresponding drain chamber and is located at one end of the corresponding inlet chamber and the corresponding drain chamber.
[0008] Each of the connecting components includes a connecting screw and a connecting flange. The connecting flange is fixedly connected to the connecting screw and is sleeved on the outer wall of the connecting screw.
[0009] The snap-fit assembly includes snap-fit posts and magnetic plates. Multiple sets of magnetic plates are used, each set being fixedly connected to a snap-fit post and embedded on both sides of the post. Each set of magnetic plates is also compatible with a corresponding water inlet and drainage chamber.
[0010] The snap-fit assembly further includes a handle, which is fixedly connected to the snap-fit post and located at one end of the snap-fit post.
[0011] This utility model discloses a copper tube assembly for a heat exchanger. Multiple sets of copper tubes are embedded into one side of a circulation unit, with each set connected and fixed via corresponding inlet and outlet flanges. This ensures stable installation of each set of copper tubes to one side of the circulation unit. When inserted into the circulation unit, both ends of each copper tube pass through a sealing ring, which seals the gap between the copper tube and the circulation unit. This improves the operational stability of the copper tube assembly and allows for quick disassembly and installation of the copper tubes. After prolonged use, the copper tubes can be disassembled for internal scale cleaning, improving maintenance and ease of use. The ease of replacement, as the copper tubes can be disassembled individually, avoids prolonged downtime caused by disassembling the entire heat exchanger, thus ensuring the continuity and stability of the equipment. Individual disassembly of the copper tubes avoids the expensive cost of replacing the entire heat exchanger, reducing replacement costs and preventing damage to other components, thereby extending the overall lifespan of the heat exchanger. The detachable function of the copper tubes increases the flexibility of the heat exchanger's use. The above structural design facilitates the cleaning of scale inside the copper tubes, while also improving the heat exchanger's flexibility and adaptability. Individual disassembly of the copper tubes avoids the need for complete unit replacement, reducing costs while extending the overall lifespan of the heat exchanger. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the structure of a copper tube assembly of a heat exchanger according to this utility model.
[0014] Figure 2 This is a front view of a copper tube assembly of a heat exchanger according to this utility model.
[0015] Figure 3 This is the utility model Figure 2 A cross-sectional view of the internal structure along the AA line.
[0016] Figure 4 This is the utility model Figure 2 A cross-sectional view of the internal structure of the BB line.
[0017] Figure 5 This is the utility model Figure 3 Enlarged view of the local structure at point C.
[0018] 101-Copper pipe, 102-Inlet flange, 103-Outlet flange, 104-Sealing ring, 105-Inlet chamber, 106-Drain chamber, 107-Connecting threaded pipe, 108-Connecting flange, 109-Snap-fit post, 110-Magnetic plate, 111-Pull handle. Detailed Implementation
[0019] Please see Figures 1 to 5 This utility model provides a copper tube assembly for a heat exchanger, including copper tubes 101 and a connecting mechanism. The connecting mechanism includes an inlet flange 102, an outlet flange 103, a sealing ring 104, and a circulation unit. There are multiple sets of copper tubes 101, multiple sets of inlet flanges 102, and multiple sets of outlet flanges 103. Each set of inlet flanges 102 is fixedly connected to a corresponding copper tube 101 and is fitted onto the outer wall of the corresponding copper tube 101. Each set of outlet flanges... 103 is fixedly connected to the copper tube 101 and sleeved on the outer wall of the corresponding copper tube 101. The two ends of each group of copper tubes 101 are detachably connected to the circulation unit by bolts and are located on one side of the circulation unit. Each group of copper tubes 101 is connected to the circulation unit. There are multiple sets of sealing rings 104. Each set of sealing rings 104 is embedded in the inside of the circulation unit and is located between the corresponding copper tube 101 and the circulation unit.
[0020] In this embodiment, multiple sets of copper pipes 101 are embedded in one side of the circulation unit, and each set of copper pipes 101 is connected and fixed by the corresponding inlet flange 102 and outlet flange 103. Each set of copper pipes 101 is stably installed in one side of the circulation unit. When each set of copper pipes 101 is inserted into the circulation unit, both ends of the copper pipe 101 pass through the sealing ring 104, so that the sealing ring 104 seals the gap between the copper pipe 101 and the circulation unit, thereby improving the operational stability of the copper pipe 101 assembly and ensuring its stability. The copper tube 101 can be quickly disassembled and installed. After prolonged use, the copper tube 101 can be disassembled to clean internal scale, improving the convenience of maintenance and replacement. Since the copper tube 101 can be disassembled individually, long-term downtime caused by disassembling the entire heat exchanger is avoided, which helps to ensure the continuity and stability of the equipment. Disassembling the copper tube 101 individually avoids the expensive cost of replacing the entire heat exchanger, reducing replacement costs and preventing damage to other components, thereby extending the service life of the entire heat exchanger. The detachable function of the copper tube 101 can improve the flexibility of the heat exchanger.
[0021] Furthermore, the circulation unit includes an inlet chamber 105, a drain chamber 106, a connecting component, and a snap-fit component. The inlet chamber 105 is detachably connected to the snap-fit component and is located on one side of the snap-fit component. The drain chamber 106 is detachably connected to the snap-fit component and is located on one side of the snap-fit component. There are two sets of connecting components. Each set of connecting components is connected to the corresponding inlet chamber 105 and the drain chamber 106, and is located at one end of the corresponding inlet chamber 105 and the drain chamber 106.
[0022] In this embodiment, heat exchange liquid is supplied through the inlet chamber 105 and guided by multiple sets of copper pipes 101, entering the drain chamber 106. At the same time, the inlet chamber 105 and the drain chamber 106 are connected by the snap-fit assembly to form a whole. The inlet chamber 105 and the drain chamber 106 are connected to the corresponding external inlet and outlet pipes through the connecting assembly.
[0023] Furthermore, each set of the connecting components includes a connecting screw tube 107 and a connecting flange 108, wherein the connecting flange 108 is fixedly connected to the connecting screw tube 107 and is sleeved on the outer wall of the connecting screw tube 107.
[0024] In this embodiment, when the connecting assembly is connected to an external pipe, it can be connected by threaded connection through the connecting bolt 107 or by flange connection through the connecting flange 108. When flange connection is used, the drain chamber 106 and the water inlet chamber 105 are respectively provided with threaded holes at the flange hole of the connecting flange 108. They can be connected and fixed by bolts through flange butt joint. Using two connection methods can effectively improve the flexibility of use.
[0025] Furthermore, the snap-fit assembly includes snap-fit posts 109 and magnetic plates 110. There are multiple sets of magnetic plates 110. Each set of magnetic plates 110 is fixedly connected to the snap-fit posts 109 and is embedded on both sides of the snap-fit posts 109. Each set of magnetic plates 110 is adapted to the corresponding water inlet chamber 105 and the drainage chamber 106.
[0026] In this embodiment, the water inlet chamber 105 and the drainage chamber 106 are snapped together by the snap-fit post 109, thereby connecting the water inlet chamber 105 and the drainage chamber 106 into a whole. When the snap-fit post 109 snaps the water inlet chamber 105 and the drainage chamber 106 together, the magnetic plates 110 on both sides magnetically attract the water inlet chamber 105 and the drainage chamber 106 to ensure the stability of the snap-fit between the water inlet chamber 105 and the drainage chamber 106.
[0027] Furthermore, the snap-fit assembly also includes a pull handle 111, which is fixedly connected to the snap-fit post 109 and located at one end of the snap-fit post 109.
[0028] In this embodiment, the handle 111 provides a gripping point when disassembling the snap-fit assembly, the water inlet chamber 105, and the drain chamber 106, facilitating quick disassembly.
[0029] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A copper pipe assembly of a heat exchanger, comprising a copper pipe, characterized in that, It further comprises a connecting mechanism; The connecting mechanism comprises a water inlet flange, a water outlet flange, a sealing ring and a circulating unit, the number of the copper pipe is multiple groups, the number of the water inlet flange is multiple groups, the number of the water outlet flange is multiple groups, each group of the water inlet flange is fixedly connected with the corresponding copper pipe respectively, and is sleeved on the outer wall of the corresponding copper pipe respectively, each group of the water outlet flange is fixedly connected with the copper pipe respectively, and is sleeved on the outer wall of the corresponding copper pipe, the two ends of each group of the copper pipe are detachably connected with the circulating unit through bolts respectively, and are located on one side of the circulating unit respectively, and each group of the copper pipe is in communication with the circulating unit, the number of the sealing ring is multiple groups, each group of the sealing ring is embedded in the inside of the circulating unit respectively, and each group of the sealing ring is located between the corresponding copper pipe and the circulating unit.
2. The copper pipe assembly of the heat exchanger according to claim 1, characterized in that, The circulating unit comprises a water inlet bin, a water outlet bin, a connecting assembly and a clamping assembly, the water inlet bin is detachably connected with the clamping assembly and located on one side of the clamping assembly, the water outlet bin is detachably connected with the clamping assembly and located on one side of the clamping assembly, the number of the connecting assembly is two groups, each group of the connecting assembly is in communication with the corresponding water inlet bin and water outlet bin respectively, and is located at one end of the corresponding water inlet bin and water outlet bin respectively.
3. The copper pipe assembly of the heat exchanger according to claim 2, characterized in that, Each group of the connecting assembly comprises a connecting spiral pipe and a connecting flange, the connecting flange is fixedly connected with the connecting spiral pipe and sleeved on the outer wall of the connecting spiral pipe.
4. The copper pipe assembly of the heat exchanger according to claim 2, characterized in that, The clamping assembly comprises a clamping column and a magnetic plate, the number of the magnetic plate is multiple groups, each group of the magnetic plate is fixedly connected with the clamping column respectively and embedded on both sides of the clamping column respectively, and each group of the magnetic plate is adapted with the corresponding water inlet bin and water outlet bin respectively.
5. The copper pipe assembly of the heat exchanger according to claim 4, characterized in that, The clamping assembly further comprises a pull handle, the pull handle is fixedly connected with the clamping column and located at one end of the clamping column.