Spiral finned tube type heat exchanger

By introducing a damping component consisting of a top column and a spring sliding mechanism to dissipate vibration energy in a spiral finned tube heat exchanger, the vibration problem of the heat exchanger under high flow rates was solved, and stable operation of the equipment was achieved.

CN224262291UActive Publication Date: 2026-05-19NANTONG KERUISI MACHINERY MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG KERUISI MACHINERY MANUFACTURING CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing spiral finned tube heat exchangers are prone to vibration under high flow rate heat exchange media, which can lead to micro-cracks in welded joints, as no vibration damping components are installed.

Method used

A spiral finned tube heat exchanger including a cover plate, a heat exchange component, and a vibration damping component was designed. The vibration damping component consists of a top column, a support cylinder, a spring, and a base plate. Vibration energy is dissipated by the top column sliding on the support cylinder.

Benefits of technology

It effectively counteracts heat exchanger vibration, prevents the formation of micro-cracks in welded joints, and improves equipment stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a spiral finned tube type heat exchanger, and belongs to the technical field of heat exchangers. The device mainly comprises a cover plate. The heat exchange assembly is arranged on the cover plate, and the heat exchange assembly is provided with two sets of side plates suitable for installation; the damping assembly is arranged on the heat exchange assembly and comprises at least two sets of jacking columns, and the jacking columns are installed at the bottoms of the side plates; the bottom plates are arranged below the top columns, and bases are mounted at the bottoms of the bottom plates; the supporting cylinders are installed on the bottom plate, the top columns are arranged on the supporting cylinders in a sliding mode, and grooves are formed in the supporting cylinders; and the springs are arranged between the bottom wall of the groove and the bottom of the top column. According to the spiral finned tube type heat exchanger, through the arrangement of the damping assembly, when the heat exchanger vibrates, the heat exchanger can slide up and down, then vibration force is counteracted, and the effect of damping the heat exchanger is achieved.
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Description

Technical Field

[0001] This application relates to the field of heat exchanger technology, specifically a spiral finned tube heat exchanger. Background Technology

[0002] Spiral finned tube heat exchangers are high-efficiency heat exchange devices that enhance heat transfer by spirally winding metal fins on the outer surface of a base tube. Their core structure consists of a base tube and spiral fins, which are tightly bonded to the base tube by high-frequency welding or integral rolling processes.

[0003] For example, the patent with publication number CN210862359U specifically discloses a laser-welded spiral finned tube heat exchanger. The inlet pipe and outlet pipe of the heat exchanger are both connected to the heat exchange equipment. The heat exchange medium is circulated into the spiral finned tube to exchange heat with the equipment, and the slag after welding is cleaned by a slag removal device.

[0004] During the use of a heat exchanger, when the flow rate of the heat exchange medium in the heat exchange tube is too high, the energy supplied by the fluid to the tube exceeds the energy consumed by the tube damping, causing the tube to vibrate. This vibration will be directly transmitted to the weld joint between the finned tube and the base tube. Although the above-mentioned patent can achieve the heat exchange function, it does not have a component to dampen it during use, which may lead to micro-cracks in the weld residual stress zone or pipe joint.

[0005] Therefore, it is necessary to provide a spiral finned tube heat exchanger to solve the above problems.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0007] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a spiral finned tube heat exchanger to achieve the purpose of vibration reduction of the heat exchanger.

[0008] The technical solution adopted by this application to solve its technical problem is: a spiral finned tube heat exchanger, including a cover plate; a heat exchange assembly disposed on the cover plate, the heat exchange assembly having two sets of side plates suitable for installation; a shock absorption assembly disposed on the heat exchange assembly, the shock absorption assembly including: at least two sets of top columns, the top columns being installed at the bottom of the side plates; at least two sets of bottom plates, the bottom plates being disposed below the top columns, the bottom of the bottom plates being mounted with a base; at least two sets of support cylinders, the support cylinders being installed on the bottom plates, the top columns being slidably disposed on the support cylinders, the support cylinders having grooves inside; and at least two sets of springs, the springs being disposed between the bottom wall of the groove and the bottom of the top column.

[0009] Furthermore, side plates are installed at both ends of the cover plate, and at least two sets of heat exchange tubes are installed on the two sets of side plates. The heat exchange tubes are equipped with spiral fins, and both ends of the heat exchange tubes extend out of the two sets of side plates.

[0010] Furthermore, an inlet pipe is installed on one set of heat exchange tubes, and an outlet pipe is installed on the other set of heat exchange tubes. At least two sets of heat exchange tubes are connected in sequence by bends.

[0011] Furthermore, a connecting cylinder is installed at one end of both the inlet and outlet pipes, and a corrugated pipe is installed inside the connecting cylinder.

[0012] Furthermore, the two sets of corrugated pipes are connected to the inlet pipe and the outlet pipe respectively, and a flange is provided at one end of each set of corrugated pipes.

[0013] Furthermore, a collection box is provided on the base plate, located below the heat exchange tubes.

[0014] The beneficial effects of this application are: the spiral finned tube heat exchanger provided by this application, through the setting of the shock absorption component, allows the heat exchanger to slide up and down when it vibrates, thereby canceling the vibration force and achieving the effect of shock absorption of the heat exchanger.

[0015] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0017] In the attached diagram:

[0018] Figure 1 This is an overall schematic diagram of a spiral finned tube heat exchanger according to this application;

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0021] Figure 4 for Figure 1 A partial schematic diagram of the whole;

[0022] Figure 5 for Figure 4 Enlarged view of point C in the middle;

[0023] The following are the labeling elements in the figure:

[0024] 1. Cover plate;

[0025] 2. Heat exchanger assembly; 21. Side plate; 22. Bend; 23. Heat exchanger tube; 24. Inlet pipe; 25. Outlet pipe;

[0026] 3. Shock-absorbing components; 31. Base; 32. Collection box; 33. Top column; 34. Support cylinder; 35. Base plate; 36. Connecting cylinder; 37. Bellows; 38. Flange; 39. Spring; 310. Groove. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0029] like Figure 1 As shown, this application provides a spiral finned tube heat exchanger, including a cover plate 1, on which a heat exchange assembly 2 is disposed. The heat exchange assembly 2 is used for the heat exchange operation of the equipment, specifically:

[0030] The heat exchange assembly 2 includes side plates 21 fixedly installed at both ends of the cover plate 1. Multiple sets of heat exchange tubes 23 are fixedly installed on the two sets of side plates 21. Both ends of the heat exchange tubes 23 extend out of the two sets of side plates 21. Spiral fins are provided on the heat exchange tubes 23. A water inlet pipe 24 is provided on one set of heat exchange tubes 23, and a water outlet pipe 25 is provided on the other set of heat exchange tubes 23.

[0031] Furthermore, multiple sets of heat exchange tubes 23 are connected in sequence with bent pipes 22, thereby forming a unidirectional flow pipe, so that the heat exchange medium can be introduced into the heat exchange tubes 23 through the inlet pipe 24 and discharged from the outlet pipe 25.

[0032] A vibration damping component 3 is provided on the heat exchange component 2, which is used to counteract the vibration generated when the heat exchange component 2 is in use.

[0033] like Figure 1 and Figures 3-5As shown, the shock absorption assembly 3 includes two sets of top columns 33 fixedly installed at the bottom of two sets of side plates 21. A base plate 35 is provided below the top column 33. A support cylinder 34 is fixedly installed on the base plate 35. The top column 33 is slidably mounted on the support cylinder 34. A groove 310 is provided inside the support cylinder 34. A spring 39 is provided between the groove 310 and the bottom of the top column 33.

[0034] So that when the heat exchange medium has a large impact force, causing the heat exchange tube 23 to vibrate, and thus causing the cover plate 1 and side plate 21 to vibrate, it can slide up and down in the axial direction of the support cylinder 34 through the top column 33 and compress the spring 39. At the same time, it is reset under the action of the restoring force of the spring 39. As it continues to vibrate, it is driven by the top column 33 to continue to slide and reset on the support cylinder 34, thereby canceling the vibration.

[0035] A base 31 is fixedly installed at the bottom of the base plate 35. A housing (not shown in the figure) can be installed on the base 31 to wrap and protect the heat exchange assembly 2, and then it is installed near the equipment that needs heat exchange.

[0036] like Figures 1-2 As shown, a connecting cylinder 36 is provided at one end of the inlet pipe 24 and the outlet pipe 25. The inside of the connecting cylinder 36 is provided with a corrugated pipe 37. The two sets of corrugated pipes 37 are connected to the inlet pipe 24 and the outlet pipe 25 respectively. A flange 38 is provided at one end of the two sets of corrugated pipes 37 to facilitate connection with other pipes and to avoid mechanical interference when the heat exchange tube 23 moves up and down.

[0037] Continue to refer to Figure 1 A collection box 32 is provided on the bottom plate 35. The collection box 32 is located below the heat exchange tube 23 so as to collect water vapor in the air that condenses on the fin surface when the surface temperature of the heat exchanger is lower than the air dew point temperature, forming water droplets.

[0038] In summary, during use, the two sets of flanges 38 are connected to the external heat exchange equipment, and the heat exchange medium is introduced into the threaded pipe through the heat exchange equipment for heat exchange. At the same time, when the flow rate of the heat exchange medium is large, causing the heat exchange tube 23 to vibrate, the two sets of side plates 21 drive the top column 33 to slide up and down on the support cylinder 34, thereby canceling the vibration force. Meanwhile, the collection box 32 collects the water droplets that fall when the heat exchange tube 23 slides up and down.

[0039] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A helical finned tube heat exchanger, characterized by: include: Cover plate (1); A heat exchange assembly (2) is disposed on the cover plate (1) and has two sets of side plates (21) suitable for installation. A vibration damping assembly (3) is disposed on the heat exchange assembly (2), the vibration damping assembly (3) comprising: At least two sets of top posts (33) are installed at the bottom of the side plate (21); At least two sets of base plates (35) are provided below the top column (33), and a base (31) is installed at the bottom of the base plate (35); At least two sets of support cylinders (34) are mounted on the base plate (35), the top column (33) is slidably disposed on the support cylinder (34), and the support cylinder (34) has a groove (310) inside; At least two sets of springs (39) are disposed between the bottom wall of the groove (310) and the bottom of the top post (33).

2. A helical finned tube heat exchanger according to claim 1, wherein: The side plates (21) are installed at both ends of the cover plate (1). At least two sets of heat exchange tubes (23) are installed on the two sets of side plates (21). The heat exchange tubes (23) are provided with spiral fins. Both ends of the heat exchange tubes (23) extend out of the two sets of side plates (21).

3. A helical finned tube heat exchanger according to claim 2, wherein: One set of heat exchange tubes (23) is provided with an inlet pipe (24), and another set of heat exchange tubes (23) is provided with an outlet pipe (25). At least two sets of heat exchange tubes (23) are connected in sequence by a bend pipe (22).

4. A helical finned tube heat exchanger according to claim 3, wherein: A connecting tube (36) is provided at one end of both the water inlet pipe (24) and the water outlet pipe (25), and a corrugated pipe (37) is provided inside the connecting tube (36).

5. A helical finned tube heat exchanger according to claim 4, wherein: The two sets of corrugated pipes (37) are respectively connected to the inlet pipe (24) and the outlet pipe (25), and a flange (38) is provided at one end of the two sets of corrugated pipes (37).

6. A helical finned tube heat exchanger according to claim 5 wherein: A collection box (32) is provided on the base plate (35), and the collection box (32) is located below the heat exchange tube (23).