A detachable coil
The detachable coil design, utilizing sealing caps and clamps, enables quick assembly and disassembly, solving the problem of difficult disassembly of existing coils and improving the maintainability and cleaning efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI JIARUI REFRIGERATION TECHNOLOGY CO LTD
- Filing Date
- 2025-09-12
- Publication Date
- 2026-08-04
AI Technical Summary
Existing coil designs are difficult to disassemble and clean quickly, resulting in complex, time-consuming maintenance and poor equipment maintainability.
The design features a detachable coil, allowing for quick assembly and disassembly using a sealing cap and pipe clamps. Combined with a sealing gasket and support frame structure, it ensures both sealing performance and structural strength.
It simplifies the disassembly and cleaning process of the coils, reduces maintenance costs and time, and improves the maintainability and cleaning efficiency of the equipment.
Smart Images

Figure CN224593789U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchange equipment technology, and in particular to a detachable coil. Background Technology
[0002] In existing fluid heat exchange systems, the coil, as the core heat exchange component, is primarily designed to ensure the system's structural strength, sealing stability, and heat exchange efficiency. Therefore, the industry commonly employs a fixed installation method that tightly integrates copper tubes with aluminum or copper fins through mechanical expansion or brazing, and rigidly connects them to the system's main pipelines, valves, and supports via welding or multiple bolted flanges. While this integrated design minimizes the risk of leakage during operation and ensures mechanical reliability, its inherent structural drawbacks create significant obstacles for routine maintenance, deep cleaning, and troubleshooting, sacrificing equipment maintainability.
[0003] When cleaning is required to remove accumulated dust, oil, or microorganisms, the disassembly process is exceptionally arduous. Maintenance personnel must first perform complex system shutdown preparations, then carefully cut connecting copper pipes, remove multiple flange connection bolts or welds using specialized tools, and properly handle any residual refrigerant or cooling water in the system. The entire process is not only cumbersome and requires a high level of technical skill from the operators, but it is also extremely time-consuming and labor-intensive. Even more challenging is the fact that, due to overall layout and space utilization considerations, coils are often densely installed inside equipment enclosures or in narrow spaces between components, severely limiting the operator's field of vision and operating angle, making disassembly even more difficult and highly susceptible to accidental damage to surrounding components.
[0004] This traditional design, which prioritizes production over maintenance, turns what should be a regular cleaning and maintenance process into a complex undertaking that requires large-scale production shutdowns, high labor costs, and carries significant risks. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a detachable coil with detachable sealing caps and pipe clamps installed at both ends, enabling quick installation and removal of the coil head, reducing the impact of downtime on production and the complexity of disassembly.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A detachable coil includes: a coil support and a coil assembly mounted on the coil support. The coil assembly is composed of multiple layers of straight tubes, with openings at both ends of the straight tubes. The openings are sealed by sealing heads. A connecting vertical tube is provided between adjacent layers of straight tubes, and the multiple layers of straight tubes are connected by the connecting vertical tube to form a "bow"-shaped loop.
[0007] Furthermore, the sealing head includes a sealing cap and a pipe clamp. The sealing cap is convex in shape and is fitted onto the opening of the straight pipe. The pipe clamp secures the sealing cap to the straight pipe.
[0008] Furthermore, the pipe clamp buckle consists of a pipe clamp and a handle. The pipe clamp is composed of left and right clamps connected by a hinge mechanism. The handle includes a bolt and a nut handle. One end of the bolt is hinged to one side of the pipe clamp opening, and the other end is fitted with the nut handle. The nut handle has a through hole.
[0009] Furthermore, the sealing head is also provided with a sealing gasket, which is fitted onto the sealing cap and the straight pipe opening.
[0010] Furthermore, the pipe clamp is also fitted to the other end of the uppermost and lowermost straight pipes of the coil assembly. The coil assembly is also provided with an upper cooler water tank and a lower cooler water tank. The upper and lower cooler water tanks are respectively connected to the uppermost and lowermost straight pipes through the pipe clamp.
[0011] Furthermore, a snap-fit connector is welded to the straight pipe port, and the sealing head is assembled on the snap-fit connector.
[0012] Furthermore, the coil support provides layer-by-layer fixed support for the straight pipe, and the top four corners of the coil support are provided with lifting rings, and the sides of the coil support are provided with support frames.
[0013] Furthermore, the lifting ring and support frame are made of Q235A carbon structural steel.
[0014] Due to the adoption of the above technical solution, this utility model has the following beneficial effects: This invention utilizes a bow-shaped circuit composed of straight pipes and connecting vertical pipes, along with a sealing head consisting of pipe clamps and a convex sealing cap, and a sealing gasket, to achieve rapid disassembly and reliable sealing at the coil end. This design eliminates the need for complex cutting, welding, or disassembly of numerous bolts during daily cleaning, maintenance, and repair, simplifying the operation process and effectively reducing the technical threshold and cost of maintenance. Simultaneously, the integrated lifting ring and support frame design of the coil support ensures the rigidity and stability of the overall structure during frequent disassembly and assembly. While ensuring system sealing and structural strength, it significantly improves the maintainability and cleaning efficiency of the equipment, reduces production downtime, and possesses high practical value and economic benefits. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, do not constitute an undue limitation of the present invention. In the drawings: Figure 1 This is a schematic diagram of the detachable coil structure of this utility model; Figure 2 This is a schematic diagram of the coil assembly structure of this utility model; Figure 3 This is a schematic diagram showing the disassembled sealing head of this utility model; Figure 4 This is a schematic diagram of the pipe clamp buckle structure of this utility model; Figure 5 for Figure 1 A schematic diagram of one end of the structure; Figure 6 This is a schematic diagram of a sealing structure for a straight pipe according to this utility model; Figure 7 This is a front view of the detachable coil structure of this utility model; Figure 8 This is a schematic diagram of the coil support structure of this utility model.
[0016] In the diagram: 1-coil bracket; 11-support frame; 12-lifting ring; 2-coil assembly; 21-straight pipe; 22-connecting vertical pipe; 23-upper cooler water tank; 24-lower cooler water tank; 25-clamp joint; 3-sealing head; 31-pipe clamp clamp; 311-pipe clamp; 3111-left clamp; 3112-right clamp; 3113-hinged mechanism; 312-handle; 3121-bolt; 3122-nut handle; 3123-through hole; 32-sealing cap; 33-sealing gasket. Detailed Implementation
[0017] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.
[0018] See below. Figure 1-8 The detachable coil described in the embodiments of this utility model.
[0019] Please see Figure 1-2 A detachable coil includes: a coil support 1 and a coil assembly 2 mounted on the coil support 1. The coil assembly 2 is composed of multiple layers of straight pipes 21, with open ends at both ends of the straight pipes 21. The open ends are sealed by sealing heads 3. A connecting vertical pipe 22 is provided between two adjacent layers of straight pipes 21. The multiple layers of straight pipes 21 are connected by the connecting vertical pipe 22 to form a "bow" shaped loop.
[0020] Refer to this embodiment Figure 3 It should be further explained that the sealing head 3 includes: a pipe clamp buckle 31 and a sealing cover 32. The sealing cover 32 is convex in shape and is installed at the opening of the straight pipe 21. The pipe clamp buckle 31 clamps the sealing cover 32 onto the straight pipe 21.
[0021] Refer to this embodiment Figure 4 It should be further explained that the pipe clamp buckle 31 is composed of a pipe clamp 311 and a handle 312. The pipe clamp 311 is composed of a left clamp 3111 and a right clamp 3112 hinged together by a hinge mechanism 3113. The handle 312 includes a bolt 3121 and a nut handle 3122. One end of the bolt 3121 is hinged to the opening side of the pipe clamp 311 by the hinge mechanism 3113, and the other end is equipped with the nut handle 3122. The nut handle 3122 is provided with a through hole 3123, which is used to tighten the nut handle 3122 with the help of a tool to ensure the sealing of the pipe clamp buckle 31.
[0022] Furthermore, it should be noted that the sealing head 3 is also provided with a sealing gasket 33, which is assembled at the opening of the sealing cover 32 and the straight pipe 21. By setting the sealing gasket 33, the sealing performance of the coil circuit can be improved, and gas and liquid leakage can be prevented.
[0023] Refer to this embodiment Figure 1 , Figure 2 and Figure 5 It should be further explained that the pipe clamp (31) is also installed at the other end of the uppermost and lowermost straight pipes of the coil assembly (2). The coil assembly (2) is also provided with an upper cooler water tank (23) and a lower cooler water tank (24). The upper and lower cooler water tanks are respectively connected to the uppermost and lowermost straight pipes through the pipe clamp (31). In application, the cooling medium flows into the user equipment through the flange port of the lower cooler water tank 24, is cooled by the coil assembly 2, and flows out through the upper cooler water tank 23, and is connected to the user equipment through the flange port.
[0024] Refer to this embodiment Figure 6 It should be further explained that in some embodiments, since it is difficult to directly assemble the sealing head 3 for sealing, it is difficult to achieve a complete seal, or the pipe clamp 31 is difficult to tighten. Therefore, a snap-fit connector 25 can be welded to the end of the straight pipe 21, and the sealing head 3 can be assembled on the snap-fit connector 25 to achieve a sealing effect.
[0025] Refer to this embodiment Figure 7-8 It should be further explained that the coil support 1 provides layer-by-layer fixed support for the straight pipe 21. The coil support 1 has a support frame 11 on its side and lifting rings 12 at the four corners of its top. When the detachable coil is hoisted, the operation can be carried out through the lifting rings 12. In order to prevent the coil support 1 from deforming during hoisting, a support frame 11 is set on the side of the coil support 1 to enhance the deformation resistance of the coil support 1.
[0026] In this embodiment, referring to industry applications in the field of coil technology, the support frame 11 and the lifting ring 12 are made of Q235A carbon structural steel.
[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] In the description of this utility model, the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0029] The terms "first," "second," and "third" (if any) in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present utility model described can be implemented in orders other than those illustrated or described herein.
[0030] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such as a process, method, system, product, or maintenance tool that includes a series of steps or units, not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or maintenance tool.
[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that, without departing from the structure of this utility model, several modifications and improvements can be made, and these should also be considered within the protection scope of this utility model. These will not affect the implementation effect of this utility model or the utility model of the patent.
Claims
1. A detachable coil, comprising: The coil support (1) and the coil assembly (2) mounted on the coil support (1) are characterized in that: the coil assembly (2) is composed of multiple straight tubes (21), the two ends of the straight tubes (21) are open, the openings are sealed by sealing heads (3), and a connecting vertical tube (22) is provided between two adjacent straight tubes (21). The multiple straight tubes (21) are connected by the connecting vertical tube (22) to form a "bow" shaped loop.
2. The detachable coil of claim 1, wherein: The sealing head (3) includes a pipe clamp (31) and a sealing cap (32). The sealing cap (32) is convex in shape and is installed at the opening of the straight pipe (21). The pipe clamp (31) clamps the sealing cap (32) onto the straight pipe (21).
3. The demountable coil as claimed in claim 2, wherein: The pipe clamp (31) is also installed at the other end of the uppermost straight pipe and the lowermost straight pipe of the coil assembly (2). The coil assembly (2) is also provided with an upper cooler water tank (23) and a lower cooler water tank (24). The upper and lower cooler water tanks are respectively connected to the uppermost straight pipe and the lowermost straight pipe through the pipe clamp (31).
4. The detachable coil as claimed in any one of claims 2-3, wherein: The pipe clamp buckle (31) consists of a pipe clamp (311) and a handle (312). The pipe clamp (311) is formed by hinged left clamp (3111) and right clamp (3112) through a hinge mechanism (3113). The handle (312) includes a bolt (3121) and a nut handle (3122). One end of the bolt (3121) is hinged to the opening side of the pipe clamp (311) through the hinge mechanism (3113), and the other end is equipped with a nut handle (3122). The nut handle (3122) is provided with a through hole (3123).
5. The demountable coil as defined in claim 2, wherein: The sealing head (3) is also provided with a sealing gasket (33), which is fitted at the opening of the sealing cover (32) and the straight tube (21).
6. The demountable coil of claim 1, wherein: The straight pipe (21) has a snap-fit connector (25) welded to its end, and the sealing head (3) is assembled on the snap-fit connector (25).
7. The demountable coil as defined in claim 1, wherein: The coil support (1) provides layer-by-layer fixed support for the straight pipe (21). The coil support (1) has a support frame (11) on its side and lifting rings (12) at the four corners of the top of the coil support (1).
8. The demountable coil as defined in claim 7, wherein: The support frame (11) and lifting ring (12) are made of Q235A carbon structural steel.