Multifunctional heat exchange copper pipe assembly
By introducing corrugated tube and capillary structures into the hot copper tube assembly, the problems of small heat exchange area and thermal expansion and contraction are solved, achieving efficient and stable heat transfer and system stability, which is suitable for applications such as air conditioning systems and industrial heat exchangers.
Patent Information
- Application Number
- CN202520038179.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Existing hot copper tube assemblies have a small heat exchange area and no turbulence effect, resulting in limited heat exchange level and inability to effectively absorb thermal expansion and contraction caused by temperature changes, affecting system stability and lifespan.
It adopts a corrugated tube and capillary tube structure. The corrugated tube compensates for thermal expansion and contraction through elastic deformation, while the capillary tube increases the heat exchange area. Combined with a stainless steel sheath tube, it enhances the structural strength and corrosion resistance.
It improves heat exchange efficiency and system stability, extends service life, and maintains reliable operation in harsh environments.
Smart Images

Figure CN223710390U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to copper pipe assembly field especially relates to a multi -functional heat exchange copper pipe assembly. BACKGROUND
[0002] The heat copper pipe assembly is mainly composed of copper pipes and other components connected with the copper pipes. The copper pipes are usually made of high-purity copper material because copper has excellent heat conduction performance. The basic principle is based on the high thermal conductivity of copper. When one end is heated, heat can be quickly transferred along the copper pipe to the other end, achieving rapid transfer and distribution of heat. For example, in some small heat dissipation devices, one end of the heat copper pipe assembly is in close contact with the heat source (such as a chip), and the heat is quickly conducted to the other end through the copper pipe, and then the heat is dissipated to the surrounding environment through the heat dissipation fins and other structures connected with the other end, thereby reducing the temperature of the heat source and ensuring its normal operation.
[0003] The existing corrugated pipe mainly adopts a smooth pipe structure, and the inner and outer walls of the copper pipe are smooth pipes, which has a small heat exchange area and basically no flow disturbance effect on the fluid, which limits the heat exchange level.
[0004] Therefore, the existing problems are researched and improved, and a multi-functional heat exchange copper pipe assembly is provided. The structure design is reasonable, the elastic deformation of the corrugated pipe can effectively absorb and compensate the thermal expansion and contraction caused by temperature changes, thereby improving the stability and service life of the entire heat exchange system. The purpose is to solve the problem and improve the practical value through the technology. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving the shortcomings in the prior art and provides a multi-functional heat exchange copper pipe assembly.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-functional heat exchange copper pipe assembly, comprising an outer sheath pipe, a corrugated pipe is arranged in the inner part of the outer sheath pipe, and a capillary tube is arranged on the outer side of the corrugated pipe.
[0007] As a further description of the above technical scheme:
[0008] The corrugated pipe is fixedly connected in the inner part of the outer sheath pipe, the size of the corrugated pipe is smaller than the size of the outer sheath pipe, the capillary tube is fixedly connected between the corrugated pipe and the outer sheath pipe, and the number of the capillary tubes is several.
[0009] As a further description of the above technical scheme:
[0010] The material used in the corrugated pipe is copper pipe, the stretching number of the corrugated pipe is 10-60, and the pressing depth is 2-10mm.
[0011] As a further description of the above technical solutions:
[0012] The material used for the capillary tube is a smooth copper tube, the wall thickness of the capillary tube is 0.2mm-1mm, and the diameter is 0.8mm-3mm.
[0013] As a further description of the above technical solutions:
[0014] The outer sheath pipe is in the shape of a hollow stud, and is made of stainless steel.
[0015] The utility model has the advantages of:
[0016] Through the elastic deformation of the corrugated pipe, the thermal expansion and contraction caused by temperature changes can be effectively absorbed and compensated, thereby improving the stability and service life of the entire heat exchange system. The setting of the capillary tube increases the heat exchange area and improves the heat exchange efficiency, and the small diameter design helps to achieve more accurate temperature control.
[0017] The hollow stud shape design of the outer sheath pipe not only enhances the strength of the structure, but also facilitates connection with other components, improving the installation convenience of the assembly. The outer sheath pipe made of stainless steel has good corrosion resistance and high temperature resistance, ensuring reliable operation of the heat exchange assembly in harsh environments.
[0018] In the utility model, the copper pipe is a corrugated pipe generated by rotary pressing on the surface of a copper smooth pipe, and the corrugated pipe is obtained by a corrugated pipe mechanism. The capillary tube is obtained by stretching a large-diameter smooth copper pipe in multiple passes, and then passing through a corrugated pipe mechanism. Then, the capillary tube is wound on the outer wall of the corrugated pipe, and a copper or other metal sheath with required strength and pressure resistance is sleeved and drawn, and then heat treatment is performed to combine the metal interfaces at the corrugated pipe peaks and the sheath, thereby closing the holes and allowing the gas coolant to flow in the three capillary tube grooves of the corrugated pipe. The medium flowing in the internal area of the corrugated pipe is water or other liquids. Through the circulation of the gas coolant, the heat absorbed by the evaporator from the surrounding environment is continuously transferred to the air cooler, and the heat is transferred to the water in the heat exchange waterway, thereby meeting the heat exchange requirements. BRIEF DESCRIPTION OF DRAWINGS
[0019] Fig. 1 The utility model provides a whole structure schematic view of a multifunctional heat exchange copper pipe assembly.
[0020] Fig. 2 The utility model provides a sectional view of a multifunctional heat exchange copper pipe assembly.
[0021] LEGEND:
[0022] 1, outer sheath pipe; 2, bellows; 3, capillary. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0024] In the description of the utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.
[0025] Reference Figs. 1-2 The utility model provides an embodiment: a multifunctional heat exchange copper pipe assembly, including outer sheath pipe 1, the inside of outer sheath pipe 1 is provided with bellows 2, the outside of bellows 2 is provided with capillary 3.
[0026] Specifically, since the heat exchange copper pipe assembly is only combined between solid phases during the drawing process, there will be gaps, which will cause the wave crest of the bellows and the sheath pipe to be unable to form effective sealing, thereby causing gas channeling during the working process, causing airflow turbulence, and affecting gas flow. By heating the assembled material into a heating furnace, the temperature is raised above the recrystallization temperature of the material to promote atomic diffusion. Keep the heating temperature for a certain period of time to make the atoms fully diffuse.
[0027] Diffusion bonding can achieve high strength bonding between materials, and the bonding strength is usually close to or reaches the strength of the base material. The microstructure of the bonded material is uniform, and there is no obvious interface defect. Therefore, by means of diffusion bonding, the position of the wave crest of the sheath pipe and the corrugated pipe can be diffusion bonded to form a whole.
[0028] In the utility model, the corrugated pipe 2 is fixedly connected inside the outer sheath pipe 1, the size of the corrugated pipe 2 is less than the size of the outer sheath pipe 1, the capillary tube 3 is fixedly connected between the corrugated pipe 2 and the outer sheath pipe 1, and the number of the capillary tube 3 is several.
[0029] Further, the material used for the corrugated pipe 2 is a copper pipe, the stretching number of the corrugated pipe 2 is 10-60, and the depth of the pressing claw is 2-10 mm.
[0030] Specifically, the corrugated pipe 2 is prepared by a corrugated pipe forming spinning machine, three spinning tool bits, pitch setting, pressing claw depth setting, stretching number, stretching length, a feeding system, forming spinning, and reverse head spinning.
[0031] Further, the material used for the capillary tube 3 is a smooth copper pipe, the wall thickness of the capillary tube 3 is 0.2-1 mm, and the diameter is 0.8-3 mm.
[0032] Further, the shape of the outer sheath pipe 1 is a hollow stud, and the outer sheath pipe 1 is made of stainless steel.
[0033] Specifically, the outer sheath pipe 1 should have good strength and pressure resistance, and will not be pierced by high-pressure working fluid. The material can be copper, stainless steel, titanium and other metals according to different working conditions. In a strong corrosive environment, titanium pipe or other materials with good performance can be used. The main function is to wrap the capillary tube 3 with a thin-walled pipe with a gap of 0.1-0.6 mm, and then extrude and draw the outer mold to make the two solidly combined.
[0034] Working principle and use process:
[0035] In the multifunctional heat exchange copper pipe assembly, the outer sheath pipe 1 provides a solid shell to protect the internal corrugated pipe 2 and capillary tube 3. The corrugated pipe 2 can provide a large surface area due to its corrugated shape, thereby enhancing the heat exchange efficiency. The capillary tube 3 is responsible for uniformly distributing the refrigerant or heat exchange medium to the entire length of the corrugated pipe 2, ensuring uniform heat exchange.
[0036] In use, first install the multifunctional heat exchange copper pipe assembly on the equipment that needs heat exchange. The refrigerant or heat exchange medium enters through the inlet of the outer sheath pipe 1, then flows through the capillary tube 3, and is evenly distributed on the inner wall of the corrugated pipe 2. Due to the corrugated structure of the corrugated pipe 2, the refrigerant or heat exchange medium produces sufficient heat exchange with the inner wall of the corrugated pipe 2 during flow. Finally, the medium flows out through the other end of the corrugated pipe 2, completing the heat exchange process.
[0037] The entire heat exchange process is efficient and stable, suitable for various application scenarios that require efficient heat exchange, such as air conditioning systems, refrigeration equipment, industrial heat exchangers, etc. By optimizing the size and material of the corrugated pipe 2 and the capillary tube 3, the heat exchange efficiency can be further improved to meet the needs of different working conditions.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application 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 make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included within the scope of protection of the present application.
Claims
1. A multi-functional heat exchange copper tube assembly comprising an outer sheathed pipe (1), characterized in that: The outer sheath pipe (1) is internally provided with a bellows (2), and the outer side of the bellows (2) is provided with capillary tubes (3).
2. The multi-functional heat exchange copper tube assembly according to claim 1, characterized in that: The bellows (2) is fixedly connected inside the outer sheath pipe (1), the size of the bellows (2) is smaller than the size of the outer sheath pipe (1), the capillary tubes (3) are fixedly connected between the bellows (2) and the outer sheath pipe (1), and the number of the capillary tubes (3) is several.
3. The multi-functional heat exchange copper tube assembly according to claim 1, wherein: The bellows (2) is made of copper pipe, the bellows (2) has 10-60 stretching turns, and the pressing depth is 2-10 mm.
4. The multi-functional heat exchange copper tube assembly according to claim 1, wherein: The capillary tubes (3) are made of smooth copper pipe, the wall thickness of the capillary tubes (3) is 0.2-1 mm, and the diameter is 0.8-3 mm.
5. The multi-functional heat exchange copper tube assembly according to claim 1, wherein: The outer sheath pipe (1) is in the shape of a hollow stud, and the outer sheath pipe (1) is made of stainless steel.