Steel lining polytetrafluoroethylene pipe

Abstract

The utility model relates to a steel lining polytetrafluoroethylene tube which comprises a steel lining layer (1) and a polytetrafluoroethylene layer (2), a plurality of elastic supporting assemblies (3) are arranged between the steel lining layer (1) and the polytetrafluoroethylene layer (2), and the elastic supporting assemblies (3) are distributed at intervals in the axial direction. According to the design, through the arrangement of the elastic supporting assembly, on one hand, the shock and vibration resistance of the steel lining polytetrafluoroethylene pipe is effectively improved, and on the other hand, the steel lining polytetrafluoroethylene pipe can meet the fixing requirements of different installation base planes.

Description

Technical Field

[0001] This utility model relates to the field of steel-lined polytetrafluoroethylene (PTFE) pipes, and in particular to a steel-lined PTFE pipe. Background Technology

[0002] Steel-lined PTFE pipe is a high-performance composite pipe that combines a PTFE lining with a steel outer shell, offering both corrosion resistance and mechanical strength. It is widely used for fluid transport in harsh working conditions.

[0003] For example, application number CN202411073406.2, patent titled "A Self-Alarming Steel-Lined Polytetrafluoroethylene Pipe," discloses a self-alarming steel-lined polytetrafluoroethylene pipe. When the ethylene pipe passes through the steel liner, it can contact the support plate and push it to rotate. After the support plate rotates, it drives the limiting block to contact the inner wall of the steel liner, thereby supporting it inside the steel liner. This has a limiting and supporting effect on the position of the ethylene pipe after installation, and can also maintain stability when the medium is transported inside the ethylene pipe, without shaking.

[0004] However, the aforementioned technical solution employs a simple composite structure with a single steel shell lined with PTFE, lacking vibration damping design. External mechanical vibrations are directly transmitted to the lining layer, accelerating material fatigue. Furthermore, it cannot adapt to the fixing requirements of different mounting surfaces. Therefore, it is necessary to develop a newer technical design that is simple in structure and capable of vibration damping to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a steel-lined polytetrafluoroethylene pipe to solve the problems in the above-mentioned background technology, such as the lack of shock-absorbing design and inability to adapt to the fixing requirements of different installation base surfaces.

[0006] This utility model provides the following technical solution: a steel-lined polytetrafluoroethylene pipe, comprising a steel liner and a polytetrafluoroethylene layer, wherein a plurality of elastic support components are provided between the steel liner and the polytetrafluoroethylene layer, and the elastic support components are distributed at intervals along the axial direction.

[0007] Preferably, the elastic support assembly includes an elastic element and a metal support frame, wherein the metal support frame is embedded within the elastic element.

[0008] Preferably, the elastic element is fluorosilicone rubber, hydrogenated nitrile rubber, or perfluoroether rubber.

[0009] Preferably, an adjustment support structure is provided outside the steel liner, and at least two sets of the adjustment support structure are provided, and the adjustment support structure is fixedly connected to the steel liner.

[0010] Preferably, the adjustment support structure includes a fixing part, a support arm, and a support base. The fixing part is fixedly connected to the steel lining. At least two sets of support arms are provided. The support arms are rotatably connected to the fixing part and to the support base.

[0011] Preferably, the support arm is provided with a telescopic arm and a locking member, the telescopic arm is sleeved inside the support arm, and the telescopic arm and the support arm are fixedly connected by the locking member.

[0012] Preferably, flanges are provided at both ends of the steel liner and the polytetrafluoroethylene layer, and the flanges are fixedly connected to or integrally formed with the steel liner and / or the polytetrafluoroethylene layer.

[0013] Preferably, the flange includes an inner plate, an outer plate, and a groove; the inner plate and the polytetrafluoroethylene layer are fixedly connected or integrally formed; the outer plate and the steel lining are fixedly connected or integrally formed; and the groove is disposed on the inner plate and / or the outer plate.

[0014] Preferably, a sealing ring for preventing leakage is provided in the groove.

[0015] Preferably, the sealing ring is a single-lip sealing ring or a double-lip sealing ring.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The present invention relates to a steel-lined polytetrafluoroethylene (PTFE) pipe, comprising a steel lining layer and a PTFE layer, wherein a plurality of elastic support components are provided between the steel lining layer and the PTFE layer, and the elastic support components are spaced apart along the axial direction. The provision of the elastic support components effectively improves the impact and vibration resistance of the steel-lined PTFE pipe.

[0018] 2. The steel-lined polytetrafluoroethylene pipe of this utility model has an elastic support assembly comprising an elastic element and a metal support frame, with the metal support frame embedded within the elastic element. The elastic element is made of fluorosilicone rubber, hydrogenated nitrile rubber, or perfluoroether rubber. This design provides both elastic cushioning performance and supporting rigidity to the elastic support assembly.

[0019] 3. The steel-lined polytetrafluoroethylene pipe of this utility model has an adjustment support structure outside the steel lining. At least two sets of adjustment support structures are provided, and the adjustment support structures are fixedly connected to the steel lining. This design can adapt to the fixing requirements of different installation base surfaces.

[0020] 4. The steel-lined PTFE pipe of this utility model has an adjustable support structure comprising a fixed part, a support arm, and a support base. The fixed part is fixedly connected to the steel lining. At least two sets of support arms are provided. The support arms are rotatably connected to the fixed part and to the support base. Each support arm is equipped with a telescopic arm and a locking device. The telescopic arm is sleeved inside the support arm, and the telescopic arm and the support arm are fixedly connected by the locking device. With this configuration, the support can adjust the angle and length of the support arm as needed to adapt to the fixing requirements of different mounting surfaces.

[0021] 5. The steel-lined PTFE pipe of this utility model has flanges at both ends of the steel liner and the PTFE layer. The flanges are fixedly connected to the steel liner and / or the PTFE layer or integrally formed. Each flange includes an inner plate, an outer plate, and a groove. The inner plate is fixedly connected to or integrally formed with the PTFE layer, and the outer plate is fixedly connected to or integrally formed with the steel liner. The groove is located on the inner plate and / or the outer plate. This design allows for a more stable connection between steel-lined PTFE pipes via flanges.

[0022] 6. The steel-lined PTFE pipe of this utility model has a sealing ring provided in the groove to prevent leakage. The sealing ring is a single-lip sealing ring or a double-lip sealing ring. By setting the sealing ring and selecting the type of sealing ring, the transmission sealing performance of the steel-lined PTFE pipe is effectively improved. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional schematic diagram of the steel-lined polytetrafluoroethylene pipe of this utility model;

[0025] Figure 2 This is a cross-sectional view of the steel-lined polytetrafluoroethylene pipe of this utility model.

[0026] In the attached figures, 1 is the steel lining; 2 is the polytetrafluoroethylene layer; 3 is the elastic support assembly; 31 is the elastic element; 32 is the metal support frame; 4 is the adjusting support structure; 41 is the fixing part; 42 is the support arm; 421 is the telescopic arm; 422 is the locking element; 43 is the support base; 5 is the flange; 51 is the inner plate; 52 is the outer plate; 53 is the groove; and 6 is the sealing ring. Detailed Implementation

[0027] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0028] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] In the description of this application, it should be understood that the terms "upper", "lower", "side", "front", "rear", etc., indicate the orientation or positional relationship based on the installation orientation or positional relationship, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] In the description of this application, it should be noted that the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0032] It should also be noted that in the embodiments of this application, the same reference numerals are used to represent the same component or part. For the same part in the embodiments of this application, the reference numerals may only be used to mark one part or component as an example. It should be understood that the reference numerals are also applicable to other identical parts or components.

[0033] Furthermore, in this application, the technical features described in an open-ended manner include both closed technical solutions composed of the listed features and open technical solutions that include the listed features.

[0034] To further understand the utility model content, features, and effects of this application, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0035] like Figure 1-2 As shown, the steel-lined PTFE pipe includes a steel liner 1 and a PTFE layer 2. Multiple elastic support components 3 are provided between the steel liner 1 and the PTFE layer 2, and the elastic support components 3 are spaced apart along the axial direction. In this embodiment, the elastic support components effectively improve the impact and vibration resistance of the steel-lined PTFE pipe. Of course, the above structure is not limited to this; other structures that provide vibration damping can also be used.

[0036] Specifically, such as Figure 2 The elastic support assembly 3 shown includes an elastic element 31 and a metal support frame 32, with the metal support frame 32 embedded within the elastic element 31. The elastic element 31 is made of fluorosilicone rubber, hydrogenated nitrile rubber, or perfluoroether rubber. In this embodiment, this arrangement provides both elastic cushioning performance and support rigidity to the elastic support assembly. Of course, the structure is not limited to this and can be any other structure that provides elastic support.

[0037] Specifically, an adjustment support structure 4 is provided outside the steel liner 1. At least two sets of the adjustment support structure 4 are provided, and the adjustment support structure 4 is fixedly connected to the steel liner 1. In this embodiment, this arrangement can adapt to the fixing requirements of different mounting bases. Of course, the above structure is not limited to this and can be other structures that perform the same function.

[0038] Specifically, such as Figure 1 As shown, the adjustable support structure 4 includes a fixing part 41, a support arm 42, and a support base 43. The fixing part 41 is fixedly connected to the steel lining layer 1. At least two sets of support arms 42 are provided. The support arms 42 are rotatably connected to the fixing part 41 and to the support base 43. The support arm 42 is provided with a telescopic arm 421 and a locking member 422. The telescopic arm 421 is sleeved inside the support arm 42, and the telescopic arm 421 and the support arm 42 are fixedly connected by the locking member 422. In this embodiment, through this setting, the support can adjust the angle and length of the support arm according to needs to adapt to the fixing requirements of different mounting surfaces. Of course, the above structure is not limited to this and can be other structures that achieve angle and length adjustment functions.

[0039] Specifically, such as Figure 1As shown, flanges 5 are provided at both ends of the steel liner 1 and the polytetrafluoroethylene (PTFE) layer 2. The flanges 5 are fixedly connected to the steel liner 1 and / or the PTFE layer 2 or integrally formed. The flange 5 includes an inner plate 51, an outer plate 52, and a groove 53. The inner plate 51 is fixedly connected to the PTFE layer 2 or integrally formed, and the outer plate 52 is fixedly connected to the steel liner 1 or integrally formed. The groove 53 is disposed on the inner plate 51 and / or the outer plate 52. In this embodiment, this arrangement allows for a more stable connection between the steel-lined PTFE pipes via flanges.

[0040] Specifically, such as Figure 1 As shown, a sealing ring 6 for preventing leakage is provided in the groove 53. The sealing ring 6 can be a single-lip sealing ring or a double-lip sealing ring. In this embodiment, the sealing ring is a double-lip sealing ring. By setting the sealing ring and selecting the type of sealing ring, the transmission sealing performance of the steel-lined PTFE pipe is effectively improved. Of course, the type of sealing ring is not limited to this and can be other types that have the same function.

[0041] Working Principle: By setting multiple elastic support components between the steel liner and the PTFE layer, the impact and vibration resistance of the steel-lined PTFE pipe is effectively improved. Each elastic support component includes an elastic element and a metal support frame, with the metal support frame embedded within the elastic element. This design provides both elastic buffering performance and supporting rigidity. An adjustable support structure is provided outside the steel liner, with at least two sets, including a fixing part, a support arm, and a support base. The fixing part is fixedly connected to the steel liner, and at least two sets of support arms are provided. The support arms are rotatably connected to the fixing part and the support base. Each support arm has a telescopic arm and a locking element. The telescopic arm is fitted inside the support arm, and the telescopic arm and support arm are fixedly connected by the locking element. This design allows the support to adjust the angle and length of the support arm as needed to adapt to the fixing requirements of different mounting surfaces. Flanges are provided at both ends of the steel liner and the PTFE layer, and the flanges are fixedly connected to or integrally formed with the steel liner and / or the PTFE layer. The flange includes an inner plate, an outer plate, and a groove. The inner plate is fixedly connected to or integrally formed with the PTFE layer, and the outer plate is fixedly connected to or integrally formed with the steel lining. The groove is located on the inner plate and / or the outer plate. This design allows for a more secure connection between PTFE-lined steel pipes via the flange. A sealing ring is provided within the groove to prevent leakage. The sealing ring can be a single-lip or double-lip sealing ring. By selecting the appropriate sealing ring type, the transmission sealing performance of the PTFE-lined steel pipe is effectively improved.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A steel-lined polytetrafluoroethylene pipe, characterized in that: It includes a steel liner (1) and a polytetrafluoroethylene layer (2). Multiple elastic support components (3) are provided between the steel liner (1) and the polytetrafluoroethylene layer (2). The elastic support components (3) are distributed at intervals along the axial direction. An adjustment support structure (4) is provided outside the steel liner (1). At least two sets of the adjustment support structure (4) are provided. The adjustment support structure (4) and the steel liner (1) are fixedly connected.

2. The steel-lined polytetrafluoroethylene pipe according to claim 1, characterized in that: The elastic support assembly (3) includes an elastic element (31) and a metal support frame (32), wherein the metal support frame (32) is embedded in the elastic element (31).

3. The steel-lined polytetrafluoroethylene pipe according to claim 2, characterized in that: The elastic element (31) is fluorosilicone rubber, hydrogenated nitrile rubber or perfluoroether rubber.

4. The steel-lined polytetrafluoroethylene pipe according to claim 3, characterized in that: The adjustment support structure (4) includes a fixing part (41), a support arm (42) and a support base (43). The fixing part (41) is fixedly connected to the steel lining (1). At least two sets of support arms (42) are provided. The support arm (42) is rotatably connected to the fixing part (41) and the support arm (42) is rotatably connected to the support base (43).

5. The steel-lined polytetrafluoroethylene pipe according to claim 4, characterized in that: The support arm (42) is provided with a telescopic arm (421) and a locking member (422). The telescopic arm (421) is sleeved inside the support arm (42), and the telescopic arm (421) and the support arm (42) are fixedly connected by the locking member (422).

6. The steel-lined polytetrafluoroethylene pipe according to claim 4 or 5, characterized in that: Flanges (5) are provided at both ends of the steel liner (1) and the polytetrafluoroethylene layer (2), and the flanges (5) are fixedly connected to the steel liner (1) and / or the polytetrafluoroethylene layer (2) or integrally formed.

7. The steel-lined polytetrafluoroethylene pipe according to claim 6, characterized in that: The flange (5) includes an inner plate (51), an outer plate (52) and a groove (53). The inner plate (51) and the polytetrafluoroethylene layer (2) are fixedly connected or integrally formed. The outer plate (52) and the steel lining layer (1) are fixedly connected or integrally formed. The groove (53) is provided on the inner plate (51) and / or the outer plate (52).

8. The steel-lined polytetrafluoroethylene pipe according to claim 7, characterized in that: A sealing ring (6) is provided in the groove (53) to prevent leakage.

9. The steel-lined polytetrafluoroethylene pipe according to claim 8, characterized in that: The sealing ring (6) is a single-lip sealing ring or a double-lip sealing ring.

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