A threaded tube

Abstract

The utility model relates to the technical field of internal thread pipe, concretely is an internal thread pipe, including pipeline, butt joint and cleaning component, the pipeline inner wall is equipped with thread groove, the butt joint sets up in the both sides of pipeline, the cleaning component includes annular groove, sliding block and brush plate, the annular groove is set up in the butt joint inner wall, the sliding block one end stretches into the annular groove, the sliding block other end is connected with the brush plate, the brush plate is equipped with brush, the brush is contacted with the pipeline inner wall, the pipeline outer wall is wound with the electromagnetic coil, the electromagnetic coil is connected with the pipeline outer wall fixedly, the utility model relates to an internal thread pipe, solves the problem that the current structure is inconvenient to clean.

Description

Technical Field

[0001] This utility model relates to the field of internal threaded pipe technology, specifically to an internal threaded pipe. Background Technology

[0002] As is well known, high-pressure boilers are usually used in conjunction with multiple refrigeration pipes. The refrigeration medium continuously absorbs heat from the surrounding environment and vaporizes within the internally threaded pipes to achieve refrigeration. The amount of refrigeration is linearly related to the material properties, internal structure, and inner surface area of ​​the heat transfer pipes, thus the internally threaded pipes play a very important role.

[0003] However, existing internally threaded pipes have the problem of inconvenient internal wall cleaning. If they are not cleaned for a long time, scale will gradually accumulate in the thread groove, which will affect the normal use of the internally threaded pipe. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an internally threaded pipe.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an internally threaded pipe, comprising a pipe, a joint, and a cleaning component. The inner wall of the pipe is provided with a threaded groove. The joint is located on both sides of the pipe. The cleaning component includes an annular groove, a slider, and a brush plate. The annular groove is formed on the inner wall of the joint. One end of the slider extends into the annular groove, and the other end of the slider is connected to the brush plate. The brush plate is provided with bristles that contact the inner wall of the pipe. An electromagnetic coil is wound around the outer wall of the pipe and is fixedly connected to the outer wall of the pipe.

[0008] To facilitate the discharge of wastewater from the annular groove, this utility model is improved by providing a sealing mechanism at the docking point, including a sealing plug, a connecting block, and a bolt. One end of the sealing plug extends into the docking point, one end of the connecting block is connected to the other end of the sealing plug, and the connecting block is connected to the docking point via the bolt.

[0009] To improve the fluidity of the liquid, the present invention is improved by providing a flow guide hole on the brush plate, wherein a plurality of flow guide holes are provided.

[0010] To avoid impurities remaining on the inner wall of the pipe, the present invention is improved by providing a superhydrophobic coating (contact angle > 150°) on the inner wall of the pipe.

[0011] To improve the sliding effect, the present invention is improved in that the slider is matched with the annular groove.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, the present invention provides an internally threaded pipe, which has the following beneficial effects:

[0014] When fluid flows through this internally threaded pipe, it forms a spiral flow under the guiding effect of the threaded grooves, causing the brush plate to rotate around the pipe axis. At the same time, the slider slides in a circular groove, making the brush plate continuously perform circular motion. The bristles on the brush plate are in close contact with the threaded grooves on the inner wall of the pipe, removing dirt from the inner wall through mechanical scraping, thus preventing scale buildup due to long-term lack of cleaning. In addition, when the electromagnetic coil wound around the outer wall of the pipe is energized, it generates an alternating electromagnetic field in the same direction as the fluid inside the pipe. Under preset voltage, current and modulation frequency, this electromagnetic field can polarize calcium and magnesium ions in the fluid, destroying the scale crystal structure. This creates a synergistic effect with the mechanical cleaning of the bristles, achieving the dual purpose of scale prevention and removal. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A magnified schematic diagram of the local structure at point A;

[0017] Figure 3 This utility model Figure 1 A magnified schematic diagram of the local structure at point B;

[0018] Figure 4 This is a schematic diagram of the axonal structure of the present invention;

[0019] In the diagram: 1. Pipe; 2. Joint; 3. Threaded groove; 4. Annular groove; 5. Slider; 6. Brush plate; 7. Guide hole; 8. Sealing mechanism; 9. Sealing plug; 10. Connecting block; 11. Bolt; 12. Electromagnetic coil. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4A threaded pipe includes a pipe 1, a joint 2, and a cleaning component. The inner wall of the pipe 1 is provided with a threaded groove 3. The joint 2 is located on both sides of the pipe 1. The cleaning component includes an annular groove 4, a slider 5, and a brush plate 6. The annular groove 4 is formed in the inner wall of the joint 2. One end of the slider 5 extends into the annular groove 4, and the other end of the slider 5 is connected to the brush plate 6. The brush plate 6 is provided with bristles that contact the inner wall of the pipe 1. An electromagnetic coil 12 is wound around the outer wall of the pipe 1 and is fixedly connected to the outer wall of the pipe 1.

[0022] In this embodiment, after the pipe 1 is connected to the external matching pipe through the docking point 2, the two ends of the electromagnetic coil 12 are connected to the control unit, which controls the operation of the electromagnetic coil. When the fluid flows through the pipe 1, the internal threaded groove 3 enhances the fluid turbulence and improves the heat transfer efficiency. At the same time, the fluid flow drives the brush plate 6 to rotate, and the slider 5 slides in the annular groove 4, so that the brush plate 6 makes a circular motion. Its bristles contact the inner wall of the pipe 1 and continuously scrape and clean it, so as to prevent the inner wall from being scaled due to long-term uncleaning. In addition, after the electromagnetic coil 12 wrapped around the outer wall of the pipe 1 is energized, it generates an alternating electromagnetic field in the same direction as the fluid in the pipe. Under the preset voltage, current and modulation frequency, it polarizes the ions in the fluid and destroys the scale crystal structure. Together with mechanical scraping, it achieves the purpose of preventing and removing scale.

[0023] The electromagnetic coil 12 in the text is connected to a PLC control unit at both ends. It can automatically adjust the energizing voltage (10-30V), current (0.5-2A) and modulation frequency (5-20kHz) according to the temperature and pressure sensor data of the fluid in the pipeline 1 to achieve dynamic matching of electromagnetic field strength.

[0024] The bristles are made of high-strength nylon 66 material, with a diameter of 0.3-0.5mm, arranged in a wavy pattern, and have a Shore A hardness of 50-60. They can effectively scrape off scale smaller than 0.1mm while avoiding scratching the inner wall of the pipe.

[0025] In this embodiment, the sealing mechanism 8 provided at the docking point 2 consists of a sealing plug 9, a connecting block 10, and a bolt 11. One end of the sealing plug 9 is inserted into a drain hole opened on the side wall of the docking point 2 (the drain hole is connected to the bottom of the annular groove 4), and the other end is fixedly connected to the connecting block 10. The connecting block 10 is fastened to the docking point 2 by the bolt 11. When there is residual liquid on the inner wall of the annular groove 4, the operation steps are as follows: use a screwdriver to loosen the bolt 11 to separate it from the connecting block 10, and then pull the connecting block 10 outward to pull the sealing plug 9 out of the drain hole. At this time, the communication path between the drain hole and the bottom of the annular groove 4 is opened, and the residual waste liquid can be smoothly discharged through the drain hole to ensure that there is no liquid accumulation in the annular groove 4.

[0026] In this embodiment, in order to improve the smooth flow of fluid in the pipe 1, a number of guide holes 7 are provided on the brush plate 6 at the docking point. These guide holes 7 are distributed in an array. Their diameter and number are optimized according to the inner diameter of the pipe and the characteristics of the fluid. They can effectively guide the fluid to pass through the docking point evenly, reduce flow resistance and eddy current generation, and at the same time help flush the residual impurities in the annular groove 4, further enhancing the fluid dynamics performance in the pipe.

[0027] In this embodiment, to improve the anti-scaling performance and self-cleaning ability of the pipeline, the inner wall of the pipeline 1 is coated with a superhydrophobic coating with a static water contact angle greater than 150°. This coating makes it difficult for impurity particles in the fluid to adhere by reducing the surface energy. Combined with the mechanical scraping action of the brush bristles, it can significantly reduce the deposition of dirt in the thread groove 3, while ensuring that the fluid forms a stable sliding flow on the pipe wall surface, further optimizing the heat transfer efficiency and reducing the flow resistance.

[0028] In this embodiment, to ensure the stability of the cleaning component's operation, the outer dimensions of the slider 5 are precisely matched with the annular groove 4, and the cross-sectional profile of the slider 5 is consistent with the inner wall shape of the annular groove 4. The fitting gap is controlled within the range of 0.1-0.2mm, which ensures that the slider 5 can slide flexibly in the annular groove 4, while also preventing the brush plate 6 from shaking due to excessive fitting gap. This ensures that the brush plate 6 remains stable when rotating with the fluid, ensuring continuous and uniform contact between the bristles and the threaded groove 3 on the inner wall of the pipe 1, and improving the consistency of the cleaning effect.

[0029] 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 threaded pipe, comprising a pipe (1), a joint (2), and a cleaning assembly, characterized in that: The inner wall of the pipe (1) is provided with a threaded groove (3), and the docking point (2) is provided on both sides of the pipe (1). The cleaning component includes an annular groove (4), a slider (5) and a brush plate (6). The annular groove (4) is opened on the inner wall of the docking point (2). One end of the slider (5) extends into the annular groove (4), and the other end of the slider (5) is connected to the brush plate (6). The brush plate (6) is provided with bristles, and the bristles are in contact with the inner wall of the pipe (1). An electromagnetic coil (12) is wound around the outer wall of the pipe (1), and the electromagnetic coil (12) is fixedly connected to the outer wall of the pipe (1).

2. The internally threaded pipe according to claim 1, characterized in that: The docking point (2) is provided with a sealing mechanism (8) including a sealing plug (9), a connecting block (10) and a bolt (11). One end of the sealing plug (9) extends into the docking point (2), and one end of the connecting block (10) is connected to the other end of the sealing plug (9). The connecting block (10) is connected to the docking point (2) through the bolt (11).

3. The internally threaded pipe according to claim 2, characterized in that: The brush plate (6) has a flow guide hole (7), and there are several flow guide holes (7).

4. The internally threaded pipe according to claim 3, characterized in that: The inner wall of the pipe (1) is coated with a superhydrophobic coating (contact angle > 150°).

5. A threaded pipe according to claim 4, characterized in that: The slider (5) is matched with the annular groove (4).

Images