A helically twisted finned tube

Abstract

The utility model relates to the technical field of finned tube, concretely is a kind of spiral twist finned tube, including metal pipe, the outer surface of metal pipe is equipped with radiating spiral fin, the inside of metal pipe is inlaidly equipped with inner sleeve in both ends position, and the side surface of two groups of inner sleeve is equipped with four groups of fixed plate, the inside of fixed plate is all equipped with thread hole, the side surface of inner sleeve is inlaidly equipped with through groove in fixed plate one side position, and one end of inner sleeve is all equipped with four groups of limiting slot. Through inner sleeve, fixed plate, thread hole, through groove, limiting slot, gear ring, plugboard, bolt, filter screen plate, plug-in slot, mounting rod, limiting plate and hand-held rod and other components settings can effectively solve the existing most finned tube in use in the fluid that passed through there can be impurities, into spiral finned tube content easily cause adhesion and accumulation situation, long-term easily affect the normal flow use of fluid Problem.

Description

Technical Field

[0001] This utility model relates to the field of finned tube technology, specifically a spiral twisted finned tube. Background Technology

[0002] Finned tubes are widely used in heat exchangers in the petroleum, chemical, power, and refrigeration industries. Due to the complex environment, finned tubes often operate under high temperature and strong corrosive conditions, making corrosion resistance a critical issue. Spiral twisted finned tubes utilize different metal materials for their inner and outer layers. One metal meets the required strength or possesses excellent thermal conductivity, while the other exhibits good corrosion resistance or wear resistance. This allows spiral twisted finned tubes to not only possess the required high strength and high thermal conductivity but also excellent corrosion resistance and wear resistance.

[0003] Most existing finned tubes are used in fluids that contain impurities. When these impurities enter the spiral finned tube, they can easily cause adhesion and accumulation, which can affect the normal flow of fluids in the long run. Therefore, corresponding improvements are needed to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a spirally twisted finned tube to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spiral twisted finned tube, comprising a metal tube, with heat dissipation spiral fins installed on the outer surface of the metal tube. Inner sleeves are embedded in the metal tube at both ends, and four sets of fixing plates are installed on the side surfaces of both sets of inner sleeves. Threaded holes are opened inside the fixing plates. Through grooves are opened on the side surfaces of the inner sleeves near the fixing plates, and four sets of limiting grooves are opened at one end of each inner sleeve. A stop ring is installed inside each inner sleeve, and a filter assembly for filtering impurities inside the metal tube is movably installed on the side of the stop ring inside the inner sleeve. Insert plates are movably inserted into the through grooves, and bolts are movably screwed into the insert plates.

[0006] Preferably, the filter assembly includes a filter plate movably installed inside the inner sleeve, and the side surface of the filter plate has four sets of insertion slots. Two sets of mounting rods are installed on the outer side of the filter plate, and a limiting plate is installed at one end of each mounting rod. A hand handle is installed on one side of each limiting plate.

[0007] Preferably, the back side of the fixing plate is installed opposite to one end face of the metal tube.

[0008] Preferably, the outer diameter of one end of the bolt is adapted to the inner diameter of the threaded hole, and one end of the bolt extends into the interior of the threaded hole and is movably threaded therewith.

[0009] Preferably, the outer frame size of the insert plate is adapted to the inner frame size of the insertion slot, and one end of the insert plate extends into the interior of the insertion slot and is movably inserted therewith.

[0010] Preferably, the width of the limiting plate is adapted to the distance between the inner walls on both sides of the limiting groove, and the limiting plate is placed inside the limiting groove.

[0011] Preferably, the inner surface of the filter plate is fitted to one side surface of the stop ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By incorporating components such as an inner sleeve, fixing plate, threaded hole, through groove, limiting groove, stop ring, insert plate, bolt, filter plate, insertion groove, mounting rod, limiting plate, and hand handle, this design effectively solves the problem that most existing finned tubes contain impurities in the fluid they pass through during use. These impurities tend to adhere and accumulate inside the spiral finned tube, which can negatively impact the normal flow and use of the fluid over a long period.

[0014] Using two sets of hand levers, place the two sets of limiting plates into their respective limiting slots, allowing the filter plate to be positioned inside the metal tube at one end. This ensures the inner surface of the filter plate aligns with one side of the stop ring. Simultaneously, four sets of insertion slots correspond one-to-one with four sets of through slots. The user can then insert one end of the insertion plate into the through slot, penetrating the inner wall of the inner sleeve, ultimately inserting it into the insertion slot. This creates a movable locking connection between the insertion plate and the insertion slot. The user can then rotate the bolt, allowing one end to extend into the threaded hole and engage with it, thus securing the insertion plate to the fixing plate. Repeating this process allows the filter plate at the other end of the metal tube to be installed. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the main body of this utility model.

[0016] Figure 2 This is a three-dimensional structural diagram of the metal tube of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the filter plate of this utility model.

[0018] Figure 4 This is a three-dimensional schematic diagram of the connection structure between the metal tube and the filter plate of this utility model.

[0019] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Metal tube; 11. Heat dissipation spiral fins; 12. Inner sleeve; 13. Fixing plate; 14. Threaded hole; 15. Through groove; 16. Limiting groove; 17. Stop ring; 18. Insert plate; 19. Bolt; 2. Filter screen plate; 21. Insertion groove; 22. Mounting rod; 23. Limiting plate; 24. Hand handle. Detailed Implementation

[0021] 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.

[0022] To achieve the above objectives, according to Figures 1-5 As shown, this utility model provides the following technical solution: a spiral twisted finned tube, including a metal tube 1, with heat dissipation spiral fins 11 installed on the outer surface of the metal tube 1. Inner sleeves 12 are embedded in the metal tube 1 at both ends, and four sets of fixing plates 13 are installed on the side surfaces of both sets of inner sleeves 12. The back side of each fixing plate 13 is installed opposite to one end face of the metal tube 1. Each fixing plate 13 has a threaded hole 14 inside. A through groove 15 is formed on the side surface of each inner sleeve 12 near the fixing plate 13, and four sets of limiting grooves 16 are formed at one end of each inner sleeve 12. All internal parts are equipped with a stop ring 17, and the internal parts of the inner sleeve 12 are movably installed with a filter assembly for filtering impurities inside the metal tube 1 on the side of the stop ring 17. The internal parts of the through groove 15 are movably inserted with a plate 18, and the internal parts of the plate 18 are movably screwed with bolts 19. The outer frame size of the plate 18 is adapted to the inner frame size of the insertion groove 21, and one end of the plate 18 extends into the insertion groove 21 and is movably inserted therewith. The outer diameter of one end of the bolt 19 is adapted to the inner diameter of the threaded hole 14, and one end of the bolt 19 extends into the threaded hole 14 and is movably screwed therewith.

[0023] The filter assembly includes a filter plate 2 movably installed inside the inner sleeve 12, and four sets of insertion slots 21 are provided on the side surface of the filter plate 2. The inner surface of the filter plate 2 is fitted to one side surface of the stop ring 17. Two sets of mounting rods 22 are installed on the outer side of the filter plate 2, and a limiting plate 23 is installed at one end of each mounting rod 22. The width of the limiting plate 23 is adapted to the distance between the inner walls on both sides of the limiting groove 16, and the limiting plate 23 is placed inside the limiting groove 16. A hand handle 24 is installed on one side of each limiting plate 23.

[0024] In use, the two sets of limiting plates 23 can be placed into the corresponding limiting grooves 16 using the two sets of hand levers 24, so that the filter plate 2 can be placed inside the metal tube 1 at one end, and the inner surface of the filter plate 2 can be fitted against one side surface of the stop ring 17. At the same time, the four sets of insertion grooves 21 are arranged one-to-one with the four sets of through grooves 15. After that, the user can movably insert one end of the insertion plate 18 into the through groove 15 and through the inner wall of the inner sleeve 12, so that one end of the insertion plate 18 can finally be inserted into the insertion groove 21, so that one end of the insertion plate 18 can be in contact with the insertion groove 21. The internal part of the metal tube 1 is designed with a movable snap-fit. After that, the user can rotate the bolt 19 so that one end of the bolt 19 can extend into the threaded hole 14 and be movably screwed into it, so that the insert plate 18 can be fixed to the fixing plate 13. By repeating the above operation, the filter plate 2 installed inside the other end of the metal tube 1 can be installed with the metal tube 1. During use, the setting of two sets of filter plates 2 can effectively solve the problem that most existing metal tubes 1 have impurities in the fluid they pass through during use, which can easily cause adhesion and accumulation inside the metal tube 1, and long-term use can easily affect the normal flow of fluid.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spiral twisted finned tube, comprising a metal tube (1), wherein heat dissipation spiral fins (11) are mounted on the outer surface of the metal tube (1), characterized in that: The metal tube (1) has an inner sleeve (12) embedded at both ends. The side surfaces of the two inner sleeves (12) are each equipped with four sets of fixing plates (13). The fixing plates (13) are each provided with threaded holes (14). The side surfaces of the inner sleeves (12) near the fixing plates (13) are each provided with through grooves (15). The inner sleeves (12) are each provided with four sets of limiting grooves (16). The inner sleeves (12) are each equipped with a stop ring (17). The inner sleeves (12) are each equipped with a filter assembly for filtering impurities inside the metal tube (1) near the stop ring (17). The through grooves (15) are each equipped with insert plates (18). The insert plates (18) are each equipped with bolts (19).

2. The spiral twisted finned tube according to claim 1, characterized in that: The filter assembly includes a filter plate (2) movably installed inside the inner sleeve (12), and four sets of insertion slots (21) are provided on the side surface of the filter plate (2). Two sets of mounting rods (22) are installed on the outer side of the filter plate (2), and a limiting plate (23) is installed at one end of each mounting rod (22). A hand handle (24) is installed on one side of each limiting plate (23).

3. The spiral twisted finned tube according to claim 1, characterized in that: The back side of the fixing plate (13) is installed opposite to one end face of the metal tube (1).

4. A spirally twisted finned tube according to claim 1, characterized in that: The outer diameter of one end of the bolt (19) is adapted to the inner diameter of the threaded hole (14), and one end of the bolt (19) extends into the interior of the threaded hole (14) and is movably threaded to it.

5. A spirally twisted finned tube according to claim 2, characterized in that: The outer frame of the insert plate (18) is adapted to the inner frame of the insertion slot (21), and one end of the insert plate (18) extends into the interior of the insertion slot (21) and is movably inserted into it.

6. A spirally twisted finned tube according to claim 2, characterized in that: The width of the limiting plate (23) is adapted to the distance between the inner walls on both sides of the limiting groove (16), and the limiting plate (23) is placed inside the limiting groove (16).

7. A spirally twisted finned tube according to claim 2, characterized in that: The inner surface of the filter plate (2) is fitted to one side surface of the stop ring (17).

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