Flow guide strip of heat exchange tube
By introducing metal spiral guide strips and baffles into the heat exchange tubes, the fluid flow pattern is optimized, solving the problems of narrow flow and cleaning in traditional heat exchange tubes, and improving heat transfer efficiency and equipment life.
Patent Information
- Application Number
- CN202520060894.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Traditional shell-and-tube heat exchangers suffer from narrow medium flow channels, difficulty in cleaning, and easy accumulation of impurities. Both excessively high and low flow velocities affect the heat exchange effect, making it difficult to form effective turbulence and reducing heat transfer efficiency.
A heat exchanger tube guide strip is designed, which uses a metal spiral guide strip in combination with a baffle to form radial and axial ripples in the medium, increasing the contact opportunities between the fluid and the heat exchange surface, and is easy to clean through modular design.
Improve heat transfer efficiency, reduce the impact and corrosion risk of fluid on the heat transfer tube wall, simplify cleaning and maintenance, and extend the life of the heat exchanger.
Smart Images
Figure CN223841023U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchanger technology, and more specifically, to a heat exchange tube guide strip. Background Technology
[0002] Heat exchangers are indispensable key equipment in industrial production, achieving efficient energy conversion and utilization by transferring some of the heat from a hot fluid to a cold fluid. They occupy a crucial position in many industries, including chemical, petroleum, power, and food processing. As one of the core components of a heat exchanger, the performance of the heat exchange tubes directly determines the efficiency and reliability of the entire heat exchange system.
[0003] Traditional shell-and-tube heat exchangers typically employ a tube bundle structure housed within a cylindrical shell for heat exchange between two media. However, these heat exchangers have some inherent drawbacks: the small gaps between the tube bundles result in narrow flow channels for the media, making cleaning difficult and prone to impurity accumulation; simultaneously, when the media flow velocity is too high, impacts and collisions within the internal tube bundles can create blind zones in the media cavity, preventing complete filling of the space; while at lower media flow velocities, effective turbulence is difficult to achieve, affecting heat exchange performance and reducing heat transfer efficiency.
[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content
[0005] In view of the problems in the related technologies, this utility model proposes a heat exchange tube guide strip to overcome the above-mentioned technical problems existing in the existing related technologies.
[0006] Therefore, the specific technical solution adopted by this utility model is as follows:
[0007] A heat exchange tube guide strip includes a heat exchange shell, with loading and unloading covers fixedly installed at both ends of the heat exchange shell, a feeding pipe fixedly installed on one side of the loading and unloading cover, a positioning groove opened on the surface of the loading and unloading cover, a material pipe installed inside the positioning groove, a guide strip provided inside the heat exchange shell, limit blocks fixedly connected to both ends of the guide strip, a limit groove opened on one side of the surface of the loading and unloading cover, the limit blocks cooperating with the limit groove, a baffle plate fixedly connected to the surface of the guide strip, a sliding groove opened on the surface of the baffle plate, and the material pipe cooperating with the sliding groove.
[0008] Furthermore, in order to enable detachable installation between the heat exchange shell, the loading and unloading cover, and the feeding pipe, positioning rings are fixedly connected to both ends of the heat exchange shell. Threaded holes are opened on the surfaces of the positioning rings, the loading and unloading cover, and the feeding pipe. The positioning rings, the loading and unloading cover, and the feeding pipe are fixedly connected by bolts.
[0009] Furthermore, in order to achieve the limiting installation between the positioning groove and the material tube, limiting threads are provided on both sides of the outer surface of the material tube, the positioning groove is threaded to both sides of the material tube, and a limiting ring is fixedly connected to one end of the material tube.
[0010] Furthermore, in order to allow the heat exchange medium to enter and exit the heat exchange shell, heat exchange ports are opened on the upper and lower sides of the heat exchange shell.
[0011] Furthermore, in order to increase the heat exchange efficiency of the heat exchange medium during heat exchange, the guide strip is a metal spiral shape, and there are three baffles distributed on both sides of the guide strip.
[0012] Furthermore, in order to achieve corrosion protection inside the heat exchange shell, a protective coating is fixedly installed inside the heat exchange shell.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The unique spiral shape design of the guide strips causes radial ripples in the medium during flow, which, in conjunction with the baffles, generate axial ripples. This optimized fluid flow pattern promotes turbulence during heat exchange, increases the contact opportunities between the fluid and the heat exchange surface, thereby significantly improving heat transfer efficiency. Furthermore, the design of the guide strips restricts the direction and velocity of fluid flow, effectively reducing the direct impact of the fluid on the heat transfer tube wall, lowering the risk of erosion and corrosion, and thus extending the overall service life of the heat exchanger.
[0015] 2. The heat exchange shell, loading and unloading cover, and feeding pipe are detachably installed by bolts. When the inside of the heat exchange shell needs to be cleaned after long-term use, the loading and unloading cover, material pipe, and guide strip can be removed from the heat exchange shell for cleaning by unscrewing the bolts. The modular design makes it easy to install and disassemble the guide strip and material pipe from the heat exchange shell, simplifying daily maintenance and effectively reducing cleaning and maintenance costs. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.
[0017] Figure 1 This is a schematic diagram of the surface structure of a heat exchanger tube guide strip according to an embodiment of the present utility model;
[0018] Figure 2 This is an internal cross-sectional view of a heat exchanger tube guide bar according to an embodiment of the present utility model;
[0019] Figure 3 This is a schematic diagram of the installation structure of the loading and unloading cover and the material pipe in a heat exchanger tube guide bar according to an embodiment of the present utility model;
[0020] Figure 4 This is a schematic diagram of the surface structure of a heat exchanger tube guide bar according to an embodiment of the present invention.
[0021] In the picture:
[0022] 1. Heat exchanger shell; 2. Loading and unloading cover; 3. Feed pipe; 4. Positioning groove; 5. Material pipe; 6. Guide strip; 7. Limiting block; 8. Limiting groove; 9. Baffle plate; 10. Sliding groove; 11. Positioning ring; 12. Threaded hole; 13. Limiting thread; 14. Limiting ring; 15. Heat exchange port; 16. Protective coating. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] According to an embodiment of the present invention, a heat exchanger tube guide strip is provided.
[0025] Example 1:
[0026] like Figures 1-4 As shown, a heat exchange tube guide strip 6 according to an embodiment of the present invention includes a hollow cylindrical carbon steel heat exchange shell 1. A pair of loading and unloading covers 2 are fixedly installed at both ends of the heat exchange shell 1. A feeding pipe 3 is fixedly installed on one side of each loading and unloading cover 2 for conveying heat exchange materials. Material is injected and discharged within the heat exchange shell 1. Multiple positioning grooves 4 are opened on the surface of the loading and unloading cover 2. A hollow cylindrical copper material pipe 5 is installed inside the positioning groove 4 for conveying heat exchange materials within the heat exchange shell 1 and for heat transfer of the heat exchange materials. The interior of the outer shell 1 is provided with a flow guide strip 6. The two ends of the flow guide strip 6 are fixedly connected to limit blocks 7. A limit groove 8 is opened on one side of the surface of the loading and unloading cover 2. The limit block 7 cooperates with the limit groove 8 to facilitate the installation of the two ends of the flow guide strip 6 on one side of the loading and unloading cover 2. A baffle plate 9 is fixedly connected to the surface of the flow guide strip 6. A sliding groove 10 is opened on the surface of the baffle plate 9. The material pipe 5 cooperates with the sliding groove 10. The flow guide strip 6 is a metal spiral shape. There are three baffle plates 9, which are distributed on both sides of the flow guide strip 6 to change the flow direction of the medium inside the heat exchange outer shell 1.
[0027] like Figures 1-4As shown, both ends of the heat exchange shell 1 are fixedly connected with positioning rings 11. The surfaces of the positioning rings 11, the loading and unloading cover 2, and the feeding pipe 3 are all threaded with holes 12. The positioning rings 11, the loading and unloading cover 2, and the feeding pipe 3 are fixedly connected by bolts to realize the detachable installation of the loading and unloading cover 2 and the feeding pipe 3 at both ends of the heat exchange shell 1. The outer surface of the material pipe 5 is provided with limiting threads 13 on both sides. The positioning groove 4 is threadedly connected to both sides of the material pipe 5. One end of the material pipe 5 is fixedly connected with a limiting ring 14. The limiting threads 13 and the limiting ring 14 limit the installation of the material pipe 5 in the positioning groove 4 to prevent the material pipe 5 from sliding in the positioning groove 4. The upper and lower sides of the heat exchange shell 1 are provided with heat exchange ports 15 to facilitate the injection and discharge of the heat exchange medium in the heat exchange shell 1. The inside of the heat exchange shell 1 is fixedly provided with a protective coating 16, which is an epoxy resin coating, to increase the corrosion resistance of the inner wall of the heat exchange shell 1.
[0028] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.
[0029] In summary, with the help of the above-mentioned technical solution of this utility model, in actual use, heat exchange material is injected into the material pipe 5 through the feeding pipe 3. The heat exchange material transfers heat into the heat exchange shell 1 through the material pipe 5. Heat exchange medium is injected into the heat exchange shell 1 through the heat exchange port 15. After entering the interior of the heat exchange shell 1, the heat exchange medium contacts the material pipe 5 and absorbs heat. While the heat exchange medium absorbs heat as it flows inside the heat exchange shell 1, the unique spiral shape design of the guide strip 6 causes the medium to form radial ripples during the flow process. When the medium encounters a bend... When the flow plate 9 is in operation, axial ripples will be formed. This flow pattern of the medium during heat exchange increases the contact opportunities between the fluid and the heat exchange surface, thereby greatly improving the heat transfer efficiency. When the heat exchange shell 1 needs to be cleaned, the loading and unloading cover 2 and the feeding pipe 3 can be disassembled from the heat exchange shell 1 by turning the bolt on one side of the positioning ring 11. At the same time as the loading and unloading cover 2 is disassembled, the feeding pipe 5 and the guide strip 6 can be pulled out from the heat exchange shell 1 together, so as to facilitate the cleaning of the inside of the heat exchange shell 1, the guide strip 6 and the material pipe 5.
[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A heat exchanger tube guide strip, characterized in that, The device includes a heat exchange shell (1), with loading and unloading covers (2) fixedly installed at both ends of the heat exchange shell (1), a feeding pipe (3) fixedly installed on one side of the loading and unloading cover (2), a positioning groove (4) opened on the surface of the loading and unloading cover (2), a material pipe (5) installed inside the positioning groove (4), a flow guide (6) provided inside the heat exchange shell (1), a limiting block (7) fixedly connected to both ends of the flow guide (6), a limiting groove (8) opened on one side of the surface of the loading and unloading cover (2), the limiting block (7) cooperating with the limiting groove (8), a baffle plate (9) fixedly connected to the surface of the flow guide (6), a sliding groove (10) opened on the surface of the baffle plate (9), and the material pipe (5) cooperating with the sliding groove (10).
2. The heat exchanger tube guide bar according to claim 1, characterized in that, Both ends of the heat exchange shell (1) are fixedly connected with positioning rings (11). The surfaces of the positioning rings (11), the loading and unloading cover (2) and the feeding pipe (3) are all threaded with holes (12). The positioning rings (11), the loading and unloading cover (2) and the feeding pipe (3) are fixedly connected by bolts.
3. The heat exchanger tube guide bar according to claim 1, characterized in that, The material tube (5) has limiting threads (13) on both sides of its outer surface. The positioning groove (4) is threadedly connected to both sides of the material tube (5). One end of the material tube (5) is fixedly connected to a limiting ring (14).
4. A heat exchanger tube guide bar according to claim 1, characterized in that, The heat exchange shell (1) has heat exchange ports (15) on its upper and lower sides.
5. A heat exchanger tube guide bar according to claim 1, characterized in that, The guide strip (6) is a metal spiral, and there are three baffles (9) distributed on both sides of the guide strip (6).
6. A heat exchanger tube guide bar according to claim 1, characterized in that, The heat exchange shell (1) is fixedly provided with a protective coating (16).