Modular heat exchanger and air cooler
The modular heat exchanger design with integrally bent fin tubes and serrated grooves simplifies assembly, reduces welding, and ensures structural integrity and longevity by eliminating the need for welding between tube sections.
Patent Information
- Application Number
- CN202421033808.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-13
AI Technical Summary
The challenge in existing finned tube heat exchangers and air coolers is the difficulty in welding straight and arc sections of the tubes due to their tight arrangement, leading to high welding complexity and difficulty.
A modular heat exchanger design with integrally bent fin tubes and serrated cross-sections, utilizing serrated and straight grooves on partition plates for assembly, eliminating the need for welding between straight and arc sections, and ensuring even stress distribution.
Reduces welding complexity, enhances structural strength, maintains flatness, and extends the service life of the heat exchanger by preventing deformation, while facilitating easy installation and disassembly.
Smart Images
Figure CN222231357U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of heat exchange devices, and specifically relates to a modular heat exchanger and an air cooler. Background Art
[0002] At present, in the metallurgy, power, petrochemical, air conditioning and other industries, in order to enhance the heat exchange effect or achieve the purpose of making the heat exchanger efficient and compact, finned tube heat exchangers and finned tube air coolers have been widely promoted and applied. As one of the components of finned tube heat exchangers or finned tube air coolers, the tube sheet is used to assemble with the finned tubes, the main heat exchange elements of the heat exchanger or air cooler, and plays the role of fixing and supporting the finned tubes.
[0003] At present, during assembly, the straight tube section of the finned tube is assembled with the tube sheet, and then the bent tubes are welded one by one. This method requires a large amount of welding and is difficult to weld because the tube bundles are closely arranged.
[0004] Therefore, it is necessary to propose a modular heat exchanger and an air cooler to solve the above problems. Utility Model Content
[0005] In view of this, the purpose of the utility model is to provide a modular heat exchanger and air cooler, which is used to solve the problem in the prior art that the straight sections and arc sections of the finned tubes are difficult to weld due to the tight arrangement of the tube bundles.
[0006] In order to achieve the above object, the utility model provides the following technical solutions:
[0007] The utility model provides a modular heat exchanger, comprising a heat exchange element, wherein the heat exchange element comprises a fin tube and a tube sheet for supporting the fin tube, a plurality of fin tubes are installed side by side between two tube sheets arranged oppositely, the fin tubes are integrally bent and formed, and the radial cross section of the fin tube is serrated, the fin tube comprises a base tube and a fin sleeved on a straight section of the base tube, two adjacent parallel straight sections of the base tube are connected as a whole through an arc section of the base tube, the fin is arranged between the two tube sheets arranged oppositely, a plurality of mounting holes cooperating with the base tube are arranged on the tube sheet, and the mounting holes in adjacent longitudinal columns or adjacent transverse rows are staggered.
[0008] Furthermore, the tube sheet is formed by a plurality of partition plates being fixedly connected, and two adjacent partition plates are connected to form the mounting hole.
[0009] Furthermore, the vertical spacing between the axes of two adjacent straight segments on the base pipe is 60 mm.
[0010] Furthermore, the horizontal distance between the axes of two adjacent straight segments on the base pipe is 22 mm.
[0011] Furthermore, the plurality of partition plates are fixedly connected in sequence along the arrangement direction of the plurality of fin tubes.
[0012] Furthermore, the plurality of partition plates are fixedly connected in sequence along a direction perpendicular to the arrangement direction of the plurality of fin tubes.
[0013] Furthermore, multiple partition plates are fixedly connected by serrated plates, and inclined first grooves are provided on both sides of the partition plates between two adjacent fin tubes. Multiple partition plates are spliced into tube plates so that multiple first grooves can be connected to form serrated grooves, and the serrations of the serrated grooves are consistent with the serrations of the fin tubes. Multiple serrated plates are respectively installed on the serrated grooves on both sides of the tube plates and fixed by bolts.
[0014] Furthermore, multiple partition plates are fixedly connected by fixing plates, and second grooves are provided on both sides of the partition plates between two adjacent base tubes on the same finned tube. The extension direction of the second grooves is perpendicular to the extension direction of the partition plates. Multiple partition plates are spliced into tube plates so that the multiple second grooves can be connected to form straight grooves, and multiple fixing plates are respectively installed on the straight grooves on both sides of the tube plates and fixed by bolts.
[0015] The utility model provides a modular air cooler, comprising the above-mentioned heat exchange element.
[0016] The beneficial effects of the utility model are:
[0017] The fin tube of the utility model adopts an integrated bending forming method, and the straight section and the arc section do not need to be welded, thereby reducing the welding amount and ensuring the strength. The radial cross-section of the fin tube is serrated, and the serration has a small aspect ratio, so that the fin tube has a strong resistance to bending deformation, ensuring the flatness of the tube sheet after assembly, the tube sheet is evenly stressed, is not easy to deform during use, and ensures the service life of the heat exchanger.
[0018] Other advantages, objectives and features of the utility model will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the utility model. The objectives and other advantages of the utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the utility model is described with the following drawings:
[0020] Figure 1 This is a schematic diagram of the fin tube structure of an embodiment of the utility model;
[0021] Figure 2 It is a side view of the fin tube of the embodiment of the utility model;
[0022] Figure 3A side view of a heat exchange element according to an embodiment of the present utility model;
[0023] Figure 4 This is a schematic diagram of the heat exchange element structure when the partition plates of the embodiment of the utility model are fixedly connected in sequence along the arrangement direction of multiple fin tubes;
[0024] Figure 5 This is a side view of a heat exchange element when the partition plates of the embodiment of the utility model are fixedly connected in sequence along the arrangement direction of a plurality of fin tubes;
[0025] Figure 6 This is a schematic diagram of the installation of the serrated plate when the partition plate of the embodiment of the utility model is fixedly connected in sequence along the arrangement direction of multiple fin tubes;
[0026] Figure 7 This is a schematic diagram of the heat exchange element structure when the partition plates of the embodiment of the utility model are fixedly connected in sequence along a direction perpendicular to the arrangement direction of a plurality of fin tubes;
[0027] Figure 8 It is a side view of the heat exchange element when the partition plates of the embodiment of the utility model are fixedly connected in sequence along the vertical direction of the arrangement direction of the plurality of fin tubes;
[0028] Fig. 9 This is a schematic diagram of the installation of the fixing plate when the partition plates of the embodiment of the utility model are fixedly connected in sequence along a direction perpendicular to the arrangement direction of multiple fin tubes.
[0029] The markings in the accompanying drawings are as follows: fin tube 1, base tube 101, fin 102, tube plate 2, mounting hole 201, partition plate 202, first groove 203, serrated groove 204, second groove 205, straight groove 206, serrated plate 3, fixing plate 4. DETAILED DESCRIPTION
[0030] like Figures 1 to 9 As shown, the utility model provides a modular heat exchanger and an air cooler, both comprising: a fin tube 1 and a tube sheet 2 for supporting the fin tube 1, and a plurality of fin tubes 1 are installed side by side between two tube sheets 2 arranged opposite to each other;
[0031] The fin tube 1 is integrally bent and formed, and the radial cross section of the fin tube 1 is serrated, and the sawtooth angle is 139°~140°. The fin tube 1 includes a base tube 101 and a fin 102 sleeved on a straight section of the base tube 101. Two adjacent parallel straight sections of the base tube 101 are connected as a whole through an arc section of the base tube 101. Figure 2 The vertical spacing between the axes of two adjacent straight segments on the base tube 101 is 60 mm, and the horizontal spacing between the axes of two adjacent straight segments is 22 mm. The fin 102 is provided between the two tube sheets 2;
[0032] The tube sheet 2 is provided with a plurality of mounting holes 201 cooperating with the base tube 101 , and the mounting holes 201 in adjacent vertical columns or adjacent horizontal rows are staggered. The tube sheet 2 is formed by a plurality of partition plates 202 fixedly connected, and two adjacent partition plates 202 are connected to form the mounting holes 201 .
[0033] In this scheme, the tube sheet 2 described in the utility model belongs to a part of the heat exchanger, and is assembled with the finned tube 1, which is the main heat exchange element of the heat exchanger, and is used to fix and support the finned tube 1. The assembled tube sheet 2 is connected and fixed to the heat exchanger shell, and at the same time plays a role in supporting the weight of the entire heat exchanger; the finned tube 1 adopts an integrated bending forming method, and the straight section and the arc section do not need to be welded, which reduces the welding amount and ensures the strength. The radial cross-section of the finned tube 1 is serrated, and the serration has a small aspect ratio, so that the finned tube 1 has a strong resistance to bending deformation, ensuring the flatness of the assembled tube sheet 2, the tube sheet 2 is evenly stressed, and is not easy to deform during use, thereby ensuring the service life of the heat exchanger.
[0034] In one embodiment of the present invention, Figure 4-6 , multiple partition plates 202 are fixedly connected in sequence along the arrangement direction of multiple fin tubes 1. When multiple fin tubes 1 are spliced, two partition plates 202 are first used to fix a single fin tube 1, wherein the single fin tube 1 is fixed in cooperation with the mounting holes 201 formed by the two partition plates 202. After the single fin tube 1 is fixed, the partition plates 202 are fixedly connected in sequence;
[0035] Among them, multiple partition plates 202 are connected in sequence through serrated plates 3 along the arrangement direction of multiple fin tubes 1, and both sides of the partition plates 202 are provided with inclined first grooves 203 between two adjacent fin tubes 1. Multiple partition plates 202 are spliced into a tube plate 201 so that multiple first grooves 203 can be connected to form serrated grooves 204, and the serrations of the serrated grooves 204 are consistent with the serrations of the fin tubes 1; when fixing, by installing multiple serrated plates 3 on the serrated grooves 204 on both sides of the tube plate 201 respectively and fixing them with bolts, the problems of high welding difficulty and large welding amount in welding can be avoided, and it is easy to install and disassemble, and the flatness of the tube plate is guaranteed.
[0036] In one embodiment of the present invention, Figure 7-9 , a plurality of partition plates 202 are sequentially fixedly connected as a whole along a direction perpendicular to the arrangement direction of the plurality of fin tubes 1. During installation, the plurality of fin tubes 1 are first placed on the partition plates 202 at the bottom, and then the partition plates 202 are spliced and fixed sequentially to form a tube sheet 2;
[0037] Among them, multiple partition plates 202 are connected in sequence through fixing plates 4 along a direction perpendicular to the arrangement direction of multiple fin tubes 1. Second grooves 205 are provided between two adjacent base tubes 101 on the same fin tube 1 on both sides of the partition plates 202. The extension direction of the second grooves 205 is perpendicular to the extension direction of the partition plates 202. Multiple partition plates 202 are spliced into a tube sheet 201 so that multiple second grooves 205 can be connected to form straight grooves 206. When fixing, by installing multiple fixing plates 4 on the straight grooves 206 on both sides of the tube sheet 201 and fixing them with bolts, the problems of high welding difficulty and large welding amount in welding can be avoided, and it is easy to install and disassemble, and the flatness of the tube sheet is guaranteed.
[0038] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.
Claims
1. A modular heat exchanger, comprising a heat exchange element, wherein the heat exchange element comprises a fin tube and a tube sheet for supporting the fin tube, characterized in that: A plurality of fin tubes are installed side by side between two tube sheets arranged opposite to each other. The fin tubes are integrally bent and the radial cross section of the fin tubes is serrated. The fin tubes include a base tube and fins sleeved on a straight section of the base tube. Two adjacent parallel straight sections of the base tubes are connected as a whole through an arc section of the base tube. The fins are arranged between two tube sheets arranged opposite to each other. A plurality of mounting holes cooperating with the base tubes are arranged on the tube sheets. The mounting holes in adjacent longitudinal columns or adjacent transverse rows are staggered.
2. The modular heat exchanger according to claim 1, characterized in that: The tube sheet is formed by a plurality of partition plates being fixedly connected, and two adjacent partition plates are connected to form the mounting hole.
3. The modular heat exchanger according to claim 1, characterized in that: The vertical distance between the axes of two adjacent straight sections on the base pipe is 60 mm.
4. The modular heat exchanger according to claim 1, characterized in that: The horizontal distance between the axes of two adjacent straight segments on the base pipe is 22 mm.
5. The modular heat exchanger according to claim 2, characterized in that: The plurality of partition plates are fixedly connected in sequence along the arrangement direction of the plurality of fin tubes.
6. The modular heat exchanger according to claim 2, characterized in that: The plurality of partition plates are fixedly connected in sequence along a direction perpendicular to the arrangement direction of the plurality of fin tubes.
7. The modular heat exchanger according to claim 5, characterized in that: Multiple partition plates are fixedly connected by serrated plates, and inclined first grooves are provided on both sides of the partition plates between two adjacent fin tubes. Multiple partition plates are spliced into tube plates so that multiple first grooves can be connected to form serrated grooves, and the serrations of the serrated grooves are consistent with the serrations of the fin tubes. Multiple serrated plates are respectively installed on the serrated grooves on both sides of the tube plates and fixed by bolts.
8. The modular heat exchanger according to claim 6, characterized in that: Multiple partition plates are fixedly connected by fixing plates, and second grooves are provided between two adjacent base tubes on the same finned tube on both sides of the partition plates, and the extension direction of the second grooves is perpendicular to the extension direction of the partition plates. Multiple partition plates are spliced into tube plates so that multiple second grooves can be connected to form straight grooves, and multiple fixing plates are respectively installed on the straight grooves on both sides of the tube plates and fixed by bolts.
9. A modular air cooler, characterized in that: The heat exchange element comprises the heat exchange element as described in any one of claims 1 to 8.