Solvent-resistant PTFE pipe cleaner
The solvent-resistant pig, with its PTFE sphere and carbon fiber cap structure, solves the problems of corrosion and poor cleaning performance, improving both corrosion resistance and cleaning efficiency, extending equipment life, and providing real-time monitoring capabilities.
Patent Information
- Application Number
- CN202422341833.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-09-25
AI Technical Summary
Existing pigging equipment is easily corroded by highly corrosive products during the pigging process, and the pigging effect is not good. Materials can easily enter the pigging equipment, affecting product purity and equipment life.
The device employs a PTFE sphere and carbon fiber cap structure, combined with sealing gaskets and built-in magnets, to ensure corrosion resistance and cleaning effectiveness. The lip protrusion ensures close contact with the pipeline, and the built-in magnets are used for positioning and detection.
It effectively prevents corrosion of the pigging equipment, ensures the effectiveness of pigging, prevents materials from entering the sphere, extends the equipment's lifespan, and enables real-time positioning and detection.
Smart Images

Figure CN223531022U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline pigging equipment, specifically a solvent-resistant PTFE pipeline pig. Background Technology
[0002] Since the beginning of the 20th century, pigging technology has emerged in various forms. Today, pigging technology is used in various sectors, industries and applications that handle liquids and powders to recover liquids and powders from pipelines, reduce waste, and improve the efficiency of manufacturing and production processes. The main purpose of pigging is to remove or recover residual products left in pipelines after being transported from one location to another in the production line.
[0003] If a pig made of conventional materials is used for pipeline recycling and cleaning, the product will not only corrode the pig during the cleaning process, but the substances produced by the chemical reaction will also affect the purity of the product, causing greater losses. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a solvent-resistant PTFE pig to solve the problems mentioned in the background. This invention has a novel structure. During use, the PTFE spheres can prevent the pig from being corroded by highly corrosive products during the pigging process. At the same time, the unique lip protrusion structure of the main body of the PTFE pig can ensure the pigging effect.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a solvent-resistant PTFE pig, comprising a PTFE sphere, a ball cover movably mounted on the PTFE sphere, the ball cover comprising an upper ball cover and a lower ball cover, the upper ball cover and the lower ball cover being respectively installed at the top and bottom of the PTFE sphere, an induction magnet being installed inside the PTFE sphere, and a sealing gasket being fixedly installed on the top of the induction magnet.
[0006] Furthermore, a compression lip is installed between the spherical cap and the PTFE sphere.
[0007] Furthermore, the upper and lower spherical caps are composed of 10% carbon fiber, and the PTFE sphere is a corrosion-resistant material structure.
[0008] The beneficial effects of this utility model are:
[0009] When using this solvent-resistant PTFE pig, the PTFE spheres can prevent the pig from being corroded by highly corrosive products during the pigging process. At the same time, the unique lip protrusion structure of the main body of the PTFE pig can ensure the pigging effect.
[0010] This solvent-resistant PTFE pig has a sealing gasket at the connection between the ball cap and the ball body to prevent material from entering the pig during the pigging process. The pig also has a built-in high-strength magnet to ensure that the pig can be detected by the pig detection unit at any time during operation and to locate the pig at any time.
[0011] This solvent-resistant PTFE pig has carbon fiber added inside the ball cap to significantly increase the device's impact resistance, ensuring that the ball cap will not crack when the pig arrives at the recycling station and is stopped, thus extending the device's service life. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of a solvent-resistant PTFE pig according to the present invention;
[0013] Figure 2 This is a side view sectional view of the structure of a solvent-resistant PTFE pig according to the present invention;
[0014] In the diagram: 1. PTFE sphere; 2. Upper sphere cover; 3. Lower sphere cover; 4. Sealing gasket; 5. Induction magnet. Detailed Implementation
[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0016] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a solvent-resistant PTFE pig, comprising a PTFE ball 1, a ball cover movably mounted on the PTFE ball 1, the ball cover comprising an upper ball cover 2 and a lower ball cover 3, the upper ball cover 2 and the lower ball cover 3 respectively mounted on the top and bottom of the PTFE ball 1, an induction magnet 5 installed inside the PTFE ball 1, and a sealing gasket 4 fixedly mounted on the top of the induction magnet 5.
[0017] In this embodiment, a compression lip is installed between the ball cap and the PTFE ball 1. The upper ball cap 2 and the lower ball cap 3 are composed of 10% carbon fiber. The PTFE ball 1 is made of corrosion-resistant material. The lip protrusion and compressible structure can ensure the cleaning effect of the pig.
[0018] When using this device, the PTFE ball 1 is placed in the pipeline to be cleaned. The lip protrusion between the PTFE ball 1 and the ball cap contacts the inner wall of the pipeline. The diameter of the lip at the contact point with the pipeline is slightly larger than the inner diameter of the pipeline. When the PTFE ball 1 enters the pipeline to be cleaned, the lip part is compressed inward, while at the same time, there is an outward elastic force. The outward elastic force ensures that the lip can always stick tightly to the pipeline wall when the pig is running in the pipeline, so as to ensure the cleaning effect. There are sealing gaskets 4 at the connection between the upper ball cap 2 and the lower ball cap 3 and the PTFE ball 1 to prevent the material from entering the interior of the PTFE ball 1 during the cleaning process. In addition, the PTFE ball 1 has a built-in induction magnet 5 to ensure that the PTFE ball 1 can be detected by the pig detection unit at any time during the operation and can be positioned at any time.
[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0020] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A solvent-resistant PTFE pig, comprising a PTFE ball (1), characterized in that: A ball cover is movably installed on the PTFE ball (1). The ball cover includes an upper ball cover (2) and a lower ball cover (3). The upper ball cover (2) and the lower ball cover (3) are respectively installed on the top and bottom of the PTFE ball (1). An induction magnet (5) is installed inside the PTFE ball (1). A compression lip is installed between the ball cover and the PTFE ball (1). The upper ball cover (2) and the lower ball cover (3) are composed of 10% carbon fiber.
2. The solvent-resistant PTFE pig according to claim 1, characterized in that: A sealing gasket (4) is fixedly installed on the top of the induction magnet (5).
3. The solvent-resistant PTFE pig according to claim 1, characterized in that: The PTFE sphere (1) is a corrosion-resistant material structure.