Steel lining polytetrafluoroethylene pipeline

Abstract

The utility model discloses a steel lining polytetrafluoroethylene pipeline, which belongs to the technical field of steel lining pipelines, and comprises an outer lining steel pipe, an inner fixing layer fixedly connected with the inner wall of the outer lining steel pipe, a plurality of accommodating extensions arranged on the inner wall of the inner fixing layer in an extending manner, and a steel wire mesh layer fixedly connected among one ends of the accommodating extensions, and the inner wall of the steel wire mesh layer is fixedly connected with an inner polytetrafluoroethylene layer. According to the steel lining teflon pipeline, the inner fixing layer is arranged on the outer lining steel pipe, the steel wire mesh layer and the heat preservation layer are arranged on the containing extension, the strength of the containing extension and the strength of the inner teflon layer are improved, heat preservation is conducted on the interior of the inner teflon layer through the heat preservation layer, and normal firing can be conducted on the premise that the requirements for pressure resistance and negative pressure resistance of the pipeline are met; and the heat preservation effect of the pipeline is improved, heat consumption during transportation is reduced, and transportation of high-temperature liquid is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of steel-lined pipe technology, and more specifically, to steel-lined PTFE pipe. Background Technology

[0002] Polytetrafluoroethylene (PTFE), also known as Teflon, is a high molecular polymer made by polymerizing tetrafluoroethylene as a monomer. Its chemical formula is (C2F4)n. It has excellent heat and cold resistance and can be used for a long time at temperatures ranging from -180 to 260°C. This material is resistant to acids, alkalis, and various organic solvents. It is almost insoluble in all solvents. At the same time, PTFE has high temperature resistance and an extremely low coefficient of friction. Therefore, in addition to its lubricating properties, it has also become an ideal coating for easy-to-clean water pipe interiors.

[0003] PTFE-lined steel pipes are pipes with a steel base and an inner lining of polytetrafluoroethylene (PTFE). The manufacturing process typically involves wrapping a PTFE film around a mold, adding a wire mesh to enhance its structural strength, then wrapping more PTFE film around the outside and sintering it into shape. This structure results in a smooth inner wall and a spiral corrugated outer wall, which helps to enhance the pipe's pressure resistance and negative pressure resistance.

[0004] Existing PTFE-lined steel pipes often encounter liquids of varying temperatures during use. When dealing with high-temperature or low-temperature liquids, it is often necessary to wrap the outer wall of the pipe with insulation material to improve its insulation effect. However, wrapping with additional insulation material is troublesome, time-consuming, and labor-intensive, which is not conducive to long-term use. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a steel-lined PTFE pipe. By setting an inner fixing layer with an outer steel lining, and accommodating and extending a steel wire mesh layer and an insulation layer, the strength of the accommodating extension and the inner PTFE layer is improved. The insulation layer insulates the interior of the inner PTFE layer. While meeting the requirements of pressure resistance and negative pressure resistance of the pipe, normal firing can also be carried out. It also improves the insulation effect of the pipe, reduces heat consumption during transportation, and is conducive to the transportation of high-temperature liquids.

[0007] 2. Technical solution

[0008] To solve the above problems, the present invention adopts the following technical solution:

[0009] A PTFE-lined steel pipe includes: an outer steel pipe, an inner fixing layer fixedly connected to the inner wall of the outer steel pipe, a plurality of receiving extensions extending from the inner wall of the inner fixing layer, a wire mesh layer fixedly connected to one end of the plurality of receiving extensions, and an inner PTFE layer fixedly connected to the inner wall of the wire mesh layer.

[0010] As a preferred embodiment of this utility model, multiple insulation layers are fixedly connected to one side of the outer wall of the inner fixing layer.

[0011] As a preferred embodiment of this utility model, one side of the outer wall of each of the multiple insulation layers is fixedly connected to the outer wall of the wire mesh layer.

[0012] As a preferred embodiment of this utility model, the plurality of insulation layers are respectively matched with corresponding containment extensions.

[0013] As a preferred embodiment of this utility model, the outer wall of the outer lining steel pipe is fixedly connected with two external fixing flanges.

[0014] As a preferred embodiment of this utility model, both outer walls of the inner PTFE layer are fixedly connected with mating extensions.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, this utility model provides a steel-lined PTFE pipe, which has the following advantages:

[0017] This steel-lined PTFE pipe features an outer steel lining with an inner fixing layer, an extended steel wire mesh layer, and an insulation layer. This enhances the strength of the extended steel lining and the inner PTFE layer. The insulation layer provides insulation for the interior of the inner PTFE layer. While meeting the pipe's pressure and negative pressure resistance requirements, it also allows for normal firing processes. Furthermore, it improves the pipe's insulation effect, reduces heat loss during transportation, and facilitates the transport of high-temperature liquids. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a rear-view perspective view of the present invention;

[0020] Figure 3 This is a sectional perspective view of the present invention.

[0021] Explanation of the labels in the diagram:

[0022] 1. Outer steel pipe lining; 2. External fixed flange; 3. Inner fixed layer; 4. Retaining extension; 5. Insulation layer; 6. Steel wire mesh layer; 7. Inner PTFE layer; 8. Fitting extension. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Example:

[0025] Please see Figure 1-3 A steel-lined PTFE pipe includes: an outer steel pipe 1, an inner fixing layer 3 fixedly connected to the inner wall of the outer steel pipe 1, a plurality of receiving extensions 4 extending from the inner wall of the inner fixing layer 3, a wire mesh layer 6 fixedly connected between one end of the plurality of receiving extensions 4, and an inner PTFE layer 7 fixedly connected to the inner wall of the wire mesh layer 6.

[0026] In a specific embodiment of this utility model, an outer fixed flange 2 and an inner fixed layer 3 are provided through an outer steel pipe 1. A receiving extension 4 is used to provide a wire mesh layer 6 and an insulation layer 5. The wire mesh layer 6 improves the strength of the receiving extension 4 and the inner PTFE layer 7 and shapes them. An insulation layer 5 is provided between the outer wall of the wire mesh layer 6 and the receiving extension 4. The insulation layer 5 insulates the interior of the inner PTFE layer 7. Under the condition of meeting the pressure resistance and negative pressure resistance requirements of the pipeline, normal firing can also be carried out. It also improves the insulation effect of the pipeline. When facing high-temperature liquids, it reduces the heat consumption during transportation, which is conducive to the transportation of high-temperature liquids and reduces transportation costs.

[0027] Specifically, multiple insulation layers 5 are fixedly connected to one side of the outer wall of the inner fixing layer 3.

[0028] In this embodiment, the insulation layer 5 improves the insulation effect of the inner fixing layer 3 and the inner PTFE layer 7, thereby reducing heat consumption when transporting high-temperature liquids.

[0029] Specifically, one side of the outer wall of each of the multiple insulation layers 5 is fixedly connected to the outer wall of the wire mesh layer 6.

[0030] In this embodiment, the insulation layer 5 is fixed and shaped by the wire mesh layer 6 so that the insulation layer 5 does not affect the shape of the inner PTFE layer 7.

[0031] Specifically, multiple insulation layers 5 are respectively matched with corresponding containment extensions 4.

[0032] In this embodiment, the insulation layer 5 is installed and fixed by providing the gap between the extensions 4.

[0033] Specifically, the outer wall of the outer steel pipe 1 is fixedly connected to two external fixed flanges 2.

[0034] In this embodiment, the connection and fixation between the pipe and the target interface or other pipes are achieved by the external fixed flange 2.

[0035] Specifically, both outer walls of the inner PTFE layer 7 are fixedly connected with mating extensions 8.

[0036] In this embodiment, the insulation layer 5 and the receiving extension 4 are shielded by the extension 8, thereby improving the sealing effect.

[0037] Working principle: An external fixed flange 2 and an inner fixed layer 3 are set through an outer steel pipe 1. An extension 4 is used to set a wire mesh layer 6 and an insulation layer 5. The wire mesh layer 6 improves the strength of the extension 4 and the inner PTFE layer 7 and shapes them. An insulation layer 5 is set between the outer wall of the wire mesh layer 6 and the extension 4. The insulation layer 5 insulates the interior of the inner PTFE layer 7. Under the condition of meeting the pressure resistance and negative pressure resistance requirements of the pipeline, normal firing can also be carried out. It also improves the insulation effect of the pipeline. When dealing with high-temperature liquids, it reduces heat consumption during transportation, which is conducive to the transportation of high-temperature liquids and reduces transportation costs.

[0038] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A steel-lined PTFE pipe, characterized in that, include: An outer steel pipe (1) is provided with an inner fixing layer (3) fixedly connected to the inner wall of the outer steel pipe (1). The inner wall of the inner fixing layer (3) is provided with a plurality of receiving extensions (4). A wire mesh layer (6) is fixedly connected between one end of the plurality of receiving extensions (4). An inner PTFE layer (7) is fixedly connected to the inner wall of the wire mesh layer (6).

2. The PTFE-lined steel pipe according to claim 1, characterized in that: Multiple insulation layers (5) are fixedly connected to one side of the outer wall of the inner fixing layer (3).

3. The PTFE-lined steel pipe according to claim 2, characterized in that: One side of the outer wall of each of the multiple insulation layers (5) is fixedly connected to the outer wall of the wire mesh layer (6).

4. The PTFE-lined steel pipe according to claim 3, characterized in that: Each of the insulation layers (5) is respectively matched with a corresponding containment extension (4).

5. The PTFE-lined steel pipe according to claim 4, characterized in that: The outer wall of the outer lining steel pipe (1) is fixedly connected to two external fixed flanges (2).

6. The PTFE-lined steel pipe according to claim 5, characterized in that: Both sides of the inner PTFE layer (7) are fixedly connected with mating extensions (8).

Images