Inner fin efficient heat exchange tube of reciprocating compressor

Abstract

The utility model discloses an inner fin high-efficiency heat exchange tube of reciprocating compressor relates to heat exchange tube technical field, including tube body, tube body is composed of main tube section, threaded section and branch tube section, the both ends of main tube section are equipped with threaded mouth and threaded connection threaded section, the other end of threaded section is fixedly connected with branch tube section, and the branch tube section is equipped with the threaded mouth. Heat exchange copper pipes are fixedly connected into cavities of the threaded sections and the branch pipe sections at the two ends through clamping mechanisms, and a plurality of heat exchange fins are fixedly connected to the pipe walls of the heat exchange copper pipes at the two ends. According to the tube body, on the basis that the heat exchange inner fins are convenient to disassemble, replace and clean, the tube body is convenient to disassemble and install, and therefore the problems that the heat exchange inner fins in an existing efficient heat exchange tube with the inner fins cannot be disassembled to be maintained, replaced and cleaned after being used for a long time, and the tube body is inconvenient to install after being disassembled are solved.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange tube technology, specifically to an internal finned high-efficiency heat exchange tube for a reciprocating compressor. Background Technology

[0002] Heat exchange tubes are components of a heat exchanger, placed inside the shell, and used for the exchange of heat between two media. They possess high thermal conductivity and excellent isothermal properties. They are devices that can rapidly transfer heat energy from one point to another with almost no heat loss; therefore, they are called heat transfer superconductors, with a thermal conductivity thousands of times that of copper.

[0003] A search revealed a public announcement (CN215217317U) for an internally finned high-efficiency heat exchange tube for a vertical oxygen reciprocating compressor. The tube includes a base tube and a core tube housed within the base tube. Multiple fins support the base tube and core tube. The fins are triangular in shape, with the end near the core tube smaller than the end near the base tube. These triangular shapes are evenly distributed between the base tube and core tube, forming a chrysanthemum-shaped cross-section. This invention allows fluids with low convective heat transfer coefficients (such as gas) to flow along the tube side, while fluids with high convective heat transfer coefficients (such as water) flow along the shell side. Because the gas flows inside the tube, it can withstand high pressure. Furthermore, the internal fins significantly improve the overall heat transfer coefficient. This heat exchanger is also small in size, 50% to 70% smaller than conventional heat exchangers.

[0004] The above technical solution has the following shortcomings;

[0005] In the above-mentioned solution, the fins are triangular in shape during the production process and are formed by stamping and bending copper or stainless steel strips. However, during assembly, they can only be fixed by welding at both ends. After long-term use, they are affected by airflow pressure and undergo certain deformation or corrosion, making it difficult to disassemble and remove them for replacement or cleaning. Furthermore, they are inconvenient to install during assembly and after disassembly. Therefore, it is necessary to solve the problem that the heat exchange inner fins in the existing internal finned high-efficiency heat exchange tubes cannot be disassembled for maintenance, replacement, and cleaning after long-term use, and that they are inconvenient to install after disassembly. Utility Model Content

[0006] In view of the problems existing in the internal finned high-efficiency heat exchange tube of the current reciprocating compressor, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide an internal finned high-efficiency heat exchange tube for a reciprocating compressor, which solves the problem that the heat exchange inner fins in the existing internal finned high-efficiency heat exchange tubes cannot be disassembled for maintenance, replacement and cleaning after long-term use, and are inconvenient to install after disassembly.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an internal finned high-efficiency heat exchange tube for a reciprocating compressor, comprising a tube body, the tube body being composed of a main pipe section, a threaded section, and a branch pipe section. Both ends of the main pipe section are threaded and threaded with threaded sections. The other ends of the threaded sections at both ends are fixedly connected to branch pipe sections. Heat exchange copper tubes are fixedly connected to the cavities of the threaded sections and branch pipe sections at both ends via a snap-fit ​​mechanism. Multiple heat exchange fins are fixedly connected to the walls of the heat exchange copper tubes at both ends. Both ends of the main pipe section are snapped with the heat exchange copper tubes at both ends via a sealing and pressing mechanism. Multiple heat exchange reinforcing plates are fixedly connected to the cavity of the main pipe section. Multiple heat dissipation outer rings are fixedly connected to the walls of the tube body.

[0009] Preferably, the snap-fit ​​mechanism includes a limiting copper plate, a snap-fit ​​groove, and a snap-fit ​​copper plate. The bottom and top of the cavity of the branch pipe sections at both ends are fixedly connected to the limiting copper plate. The surface of the limiting copper plate at both ends is provided with a snap-fit ​​groove. The top and bottom of the heat exchange copper pipe at both ends are fixedly connected to the snap-fit ​​copper plate. The snap-fit ​​copper plate at both ends snaps with the corresponding snap-fit ​​groove.

[0010] Preferably, the sealing and pressure-resistant mechanism includes a sealing ring and an elastic pressure-resistant washer. Rubber sealing rings are snapped into both ends of the main pipe section, and elastic pressure-resistant washeres are fixedly connected to the side walls of the rubber sealing rings at both ends. The elastic pressure-resistant washeres at both ends are snapped into the corresponding heat exchange copper pipes.

[0011] Preferably, each of the heat exchange reinforcing plates is a hollow ring, and heat exchange hollow tubes are fixedly connected to both end sidewalls, and a hollow mesh tube is fixedly connected to the middle of the inner sidewall of each of the heat exchange reinforcing plates.

[0012] Preferably, each of the heat exchange fins has multiple protruding contact points on its surface.

[0013] Furthermore, the heat exchange copper tube has multiple flow holes in its tube wall.

[0014] Preferably, the surfaces of the sealing rings and elastic pressure washers at both ends are coated with high-temperature resistant and corrosion-resistant paint.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. This utility model utilizes threaded openings at both ends of the main pipe section to facilitate installation and disassembly with the branch pipe section via the threaded section. Multiple heat exchange fins are used to contact and remove heat from the airflow. The outer heat dissipation ring strengthens the heat exchange area between the pipe body and the outside. The hollow mesh tube in the middle of the heat exchange strengthening plate further enhances the heat exchange area. External cooling liquid or airflow flows through the heat exchange hollow tube. The cooling liquid or airflow enters the hollow mesh tube through one end of the heat exchange hollow tube and exits through the other end of the heat exchange hollow tube, thus enhancing the heat exchange with the contacting gas.

[0017] 2. This utility model utilizes snap-fit ​​copper plates set at both ends of the heat exchange copper tube. By slidingly snapping with snap-fit ​​grooves opened on the surface of the corresponding limiting copper plate, the heat exchange copper tube is positioned and supported in the tube cavity, preventing the heat exchange fins from vibrating and deforming due to air pressure, thus reducing their service life.

[0018] 3. This utility model utilizes a sealing ring that is snapped into the threaded opening to seal the connection at both ends, and uses an elastic pressure washer to press and limit the heat exchange copper tube, preventing it from moving. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a front structural cross-sectional view of the present invention;

[0021] Figure 2 This is a three-dimensional schematic diagram of part of the connection structure of this utility model;

[0022] Figure 3 This is a side structural cross-sectional view of the present invention;

[0023] Figure 4 This is a three-dimensional structural diagram of the heat exchange copper tube of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Pipe body; 2. Main pipe section; 3. Threaded section; 4. Branch pipe section; 5. Threaded end; 6. Heat exchange copper tube; 7. Heat exchange fins; 8. Heat exchange reinforcing plate; 9. Heat dissipation outer ring; 10. Limiting copper plate; 11. Snap-fit ​​groove; 12. Snap-fit ​​copper plate; 13. Rubber sealing ring; 14. Elastic pressure washer; 15. Heat exchange hollow tube; 16. Hollow mesh tube; 17. Protruding contact point; 18. Flow hole. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model discloses an internal finned high-efficiency heat exchange tube for a reciprocating compressor.

[0028] Example 1

[0029] This utility model provides, for example Figure 1-4 The diagram shows an internally finned high-efficiency heat exchange tube for a reciprocating compressor, comprising a tube body 1. The tube body 1 consists of a main pipe section 2, a threaded section 3, and a branch pipe section 4. Both ends of the main pipe section 2 are threadedly connected to the threaded section 3 via threaded openings 5. The other ends of the threaded sections 3 are fixedly connected to the branch pipe sections 4. Heat exchange copper tubes 6 are fixedly connected to the cavities of the threaded sections 3 and branch pipe sections 4 via a snap-fit ​​mechanism. Multiple heat exchange fins 7 are fixedly connected to the walls of the heat exchange copper tubes 6. Both ends of the main pipe section 2 are snapped into the heat exchange copper tubes 6 via a sealing and pressing mechanism. Multiple heat exchange reinforcing plates 8 are fixedly connected to the cavity of the main pipe section 2. Multiple heat dissipation outer rings 9 are fixedly connected to the walls of the tube body 1. The tube body 1 utilizes the openings at both ends of the main pipe section 2... The threaded port 5 facilitates installation and disassembly with the branch pipe section 4 via the threaded section 3. The snap-fit ​​mechanism facilitates the installation of the heat exchange copper tube 6 inside the tube body 1. After installation, the sealing and pressing mechanism presses against one end of the heat exchange copper tube 6 to prevent movement. Multiple heat exchange fins 7 are used to contact and remove heat from the airflow. The heat dissipation outer ring 9 enhances the heat exchange area between the tube body 1 and the outside. The heat exchange reinforcing plate 8 enhances the heat exchange efficiency with the airflow inside the cavity. This solves the problem that the heat exchange inner fins in existing high-efficiency heat exchange tubes cannot be disassembled for maintenance, replacement, and cleaning after long-term use, and are inconvenient to install after disassembly.

[0030] Example 2

[0031] To facilitate the positioning and support of the heat exchange copper tube 6 within the tube body 1, such as Figure 1 , 3 As shown in Figure 4, the snap-fit ​​mechanism includes a limiting copper plate 10, a snap-fit ​​groove 11, and a snap-fit ​​copper plate 12. The bottom and top of the cavity of the branch pipe sections 4 at both ends are fixedly connected to the limiting copper plate 10. The surface of the limiting copper plate 10 at both ends is provided with a snap-fit ​​groove 11. The top and bottom of the heat exchange copper pipes 6 at both ends are fixedly connected to the snap-fit ​​copper plate 12. The snap-fit ​​copper plate 12 at both ends snaps with the corresponding snap-fit ​​groove 11. By using the snap-fit ​​copper plate 12 provided at both ends of the heat exchange copper pipe 6 to slide and snap with the snap-fit ​​groove 11 provided on the surface of the corresponding limiting copper plate 10, the heat exchange copper pipe 6 is positioned and supported in the cavity of the pipe body 1, preventing the heat exchange fins 7 from shaking due to air pressure and deforming, thus reducing their service life.

[0032] Example 3

[0033] To seal the connection at both ends and to pressurize and limit the heat exchange copper tube 6, such as Figure 1 and 2 As shown, the sealing and pressing mechanism includes a sealing ring 13 and an elastic pressing washer 14. Rubber sealing rings 13 are snapped into both ends of the main pipe section 2, and elastic pressing washers 14 are fixedly connected to the side walls of the rubber sealing rings 13 at both ends. The elastic pressing washers 14 at both ends are snapped into the corresponding heat exchange copper tubes 6. The sealing rings 13 are used to seal the connection at both ends, and the elastic pressing washers 14 are used to press and limit the heat exchange copper tubes 6 to prevent them from moving.

[0034] Example 4

[0035] In order to enable the heat exchange reinforcement plate 8 to achieve enhanced heat dissipation function, such as Figure 1 and 3 As shown, each heat exchange reinforcing plate 8 is a hollow ring, and heat exchange hollow tubes 15 are fixedly connected to both end side walls. A hollow mesh tube 16 is fixedly connected to the middle of the inner side wall of each heat exchange reinforcing plate 8. The heat exchange area is enhanced by using the hollow mesh tube 16 set in the middle. External cooling liquid or airflow flows through the heat exchange hollow tube 15. The cooling liquid or airflow enters the hollow mesh tube 16 through one end of the heat exchange hollow tube 15 and is discharged through the heat exchange hollow tube 15 at the other end, thereby enhancing the heat exchange of the contacting gas.

[0036] Example 5

[0037] To enhance heat exchange between the heat exchange fins 7 and the copper tubes 6, and to improve the corrosion resistance of the sealing rings 13 and the elastic pressure gaskets 14, such as... Figure 1-4 As shown, each heat exchange fin 7 has multiple protruding contact points 17 on its surface, and the heat exchange copper tube 6 has multiple flow holes 18 on its tube wall. The surfaces of the sealing rings 13 and the elastic pressure washers 14 at both ends are coated with high-temperature resistant and anti-corrosion coatings. The protruding contact points 17 are used to enhance the heat exchange area of ​​the heat exchange fins 7, and the flow holes 18 are used to facilitate the airflow to circulate back and forth in the heat exchange copper tube 6 for heat exchange. The high-temperature resistant and anti-corrosion coatings are used to enhance the corrosion resistance of the sealing rings 13 and the elastic pressure washers 14, thereby increasing their service life.

[0038] How to use:

[0039] During installation, the heat exchange copper tubes 6 are inserted into the retaining grooves 11 on the surface of the limiting copper plate 10 by inserting the retaining copper plates 12 at both ends of the heat exchange copper tube 6. The heat exchange copper tubes 6 at both ends are installed in the corresponding branch pipe sections 4. The sealing rings 13 and elastic pressure washers 14 are placed in the threaded ports 5 at both ends of the main pipe section 2. Finally, the branch pipe sections 4 at both ends are threaded to the threaded ports 5 by the threaded sections 3. When replacement or cleaning is required, the threaded sections 3 at both ends are rotated to separate them from the main pipe section 2, so that the heat exchange copper tubes 6 can be easily removed.

[0040] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-efficiency heat exchange tube with internal fins for a reciprocating compressor, comprising a tube body (1), characterized in that: The pipe body (1) is composed of a main pipe section (2), a threaded section (3) and a branch pipe section (4). Both ends of the main pipe section (2) are threaded and connected to the threaded section (3) by opening threaded ports (5). The other ends of the threaded sections (3) at both ends are fixedly connected to the branch pipe section (4). The cavities of the threaded sections (3) and the branch pipe section (4) at both ends are fixedly connected to the heat exchange copper tubes (6) by a snap-fit ​​mechanism. The walls of the heat exchange copper tubes (6) at both ends are fixedly connected to multiple heat exchange fins (7). The two ends of the main pipe section (2) are snapped to the heat exchange copper tubes (6) at both ends by a sealing and pressing mechanism. The cavities of the main pipe section (2) are fixedly connected to multiple heat exchange reinforcing plates (8). The walls of the pipe body (1) are fixedly connected to multiple heat dissipation outer rings (9).

2. The high-efficiency finned heat exchange tube of a reciprocating compressor according to claim 1, characterized in that: The snap-fit ​​mechanism includes a limiting copper plate (10), a snap-fit ​​groove (11), and a snap-fit ​​copper plate (12). The bottom and top of the cavity of the branch pipe section (4) at both ends are fixedly connected to the limiting copper plate (10). The surface of the limiting copper plate (10) at both ends is provided with a snap-fit ​​groove (11). The top and bottom of the heat exchange copper pipe (6) at both ends are fixedly connected to the snap-fit ​​copper plate (12). The snap-fit ​​copper plate (12) at both ends snaps with the corresponding snap-fit ​​groove (11).

3. The high-efficiency finned heat exchange tube of a reciprocating compressor according to claim 1, characterized in that: The sealing and pressure-resistant mechanism includes a sealing ring (13) and an elastic pressure-resistant washer (14). The two ends of the main pipe section (2) are fitted with rubber sealing rings (13). The side walls of the rubber sealing rings (13) at both ends are fixedly connected with elastic pressure-resistant washer (14). The elastic pressure-resistant washer (14) at both ends is fitted with the corresponding heat exchange copper pipe (6).

4. The high-efficiency finned heat exchange tube of a reciprocating compressor according to claim 1, characterized in that: Each of the heat exchange reinforcing plates (8) is a hollow ring body, and heat exchange hollow tubes (15) are fixedly connected to both end side walls. A hollow mesh tube (16) is fixedly connected to the middle of the inner side wall of each of the heat exchange reinforcing plates (8).

5. The high-efficiency finned heat exchange tube of a reciprocating compressor according to claim 1, characterized in that: Each heat exchange fin (7) has multiple protruding contact points (17) on its surface.

6. The high-efficiency finned heat exchange tube of a reciprocating compressor according to claim 1, characterized in that: The heat exchange copper tube (6) has multiple flow holes (18) on its tube wall.

7. The high-efficiency finned heat exchange tube of a reciprocating compressor according to claim 3, characterized in that: The surfaces of the sealing rings (13) and elastic pressure washers (14) at both ends are coated with high-temperature resistant and corrosion-resistant paint.

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