High-temperature-resistant negative-pressure-resistant polytetrafluoroethylene pipeline

Abstract

The utility model relates to the technical field of pipeline transportation, in particular to a high-temperature-resistant negative-pressure-resistant polytetrafluoroethylene pipeline which comprises a pipe body, the right side of the pipe body is fixedly connected with a concave clamping block, the left side of the pipe body is fixedly connected with a convex clamping block, and the outer surface of the pipe body is fixedly sleeved with a negative-pressure-resistant layer. The outer surface of the negative-pressure-resistant layer is fixedly sleeved with a high-temperature-resistant layer, the outer surface of the high-temperature-resistant layer is fixedly sleeved with a wear-resistant layer, the high-temperature-resistant layer comprises a polyimide layer, and the inner surface of the polyimide layer is fixedly connected with the negative-pressure-resistant layer. Through the cooperation of the polyimide layer, the polyether ketone layer and the polyphenylene sulfide layer, the high-temperature-resistant pipeline has a high-temperature-resistant function, can be subjected to high-temperature-resistant treatment in the use process, can avoid the melting phenomenon of the outer side of the pipeline when the temperature is too high, can also avoid the combustion phenomenon of the pipeline when open fire exists around, can avoid the damage of the pipeline, and is convenient to use. And meanwhile, the conveyed objects are prevented from leaking.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline transportation, in particular to a high-temperature and negative-pressure resistant polytetrafluoroethylene pipeline. Background Art

[0002] Pipeline transportation is a method of transporting liquid and gas materials over long distances using pipelines as a means of transportation. Therefore, polytetrafluoroethylene pipes are required when transporting special materials according to demand.

[0003] After searching, the patent number is CN212510004U, and the name is a utility model of a polytetrafluoroethylene connecting pipe that prevents rotation, including a first connecting pipe. Through research and analysis, it is found that although the vibration of the pipe can be greatly reduced during use to ensure the long-term use of the pipe, the following disadvantages still exist to a certain extent.

[0004] For example, in the process of using polytetrafluoroethylene pipes for pipeline transportation, it is impossible to perform high temperature resistance treatment during use. Therefore, when using polytetrafluoroethylene pipes for pipeline transportation, if they do not have high temperature resistance, the outside of the pipe may melt when the temperature is too high, or it may quickly burn when there is an open flame around it. Subsequently, the pipe may rupture and affect the transported items inside. In severe cases, it may cause the transported items to leak. In order to solve the above technical problems, we have designed a high-temperature and negative-pressure resistant polytetrafluoroethylene pipe. Utility Model Content

[0005] The utility model aims to provide a high temperature and negative pressure resistant polytetrafluoroethylene pipe, which has the advantages of high temperature resistance and negative pressure resistance, and solves the problem that the existing polytetrafluoroethylene pipe does not have the high temperature resistance and negative pressure resistance during use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high temperature resistant and negative pressure resistant polytetrafluoroethylene pipe, comprising a pipe body, a concave clamping block is fixedly connected to the right side of the pipe body, a convex clamping block is fixedly connected to the left side of the pipe body, the outer surface fixed sleeve of the pipe body is provided with a negative pressure resistant layer, the outer surface fixed sleeve of the negative pressure resistant layer is provided with a high temperature resistant layer, and the outer surface fixed sleeve of the high temperature resistant layer is provided with a wear-resistant layer.

[0007] Preferably, the high temperature resistant layer includes a polyimide layer, the inner surface of the polyimide layer is fixedly connected to the negative pressure resistant layer, the outer surface of the polyimide layer is fixedly sleeved with a polyether ketone layer, the outer surface of the polyether ketone layer is fixedly sleeved with a polyphenylene sulfide layer, and the outer surface of the polyphenylene sulfide layer is fixedly connected to the wear-resistant layer.

[0008] Preferably, the negative pressure resistant layer includes a polystyrene layer, the inner surface of the polystyrene layer is fixedly connected to the tube body, the outer surface of the polystyrene layer is fixedly sleeved with a rigid metal mesh layer, the outer surface of the rigid metal mesh layer is fixedly sleeved with a polycarbonate layer, and the outer surface of the polycarbonate layer is fixedly connected to the high temperature resistant layer.

[0009] Preferably, the inner surface of the polyimide layer is fixedly connected to the negative pressure resistant layer, and the outer surface of the polyphenylene sulfide layer is fixedly connected to the wear-resistant layer.

[0010] Preferably, the inner surface of the polystyrene layer is fixedly connected to the tube body, and the outer surface of the polycarbonate layer is fixedly connected to the high temperature resistant layer.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model has a high temperature resistance function through the combination of a polyimide layer, a polyether ketone layer and a polyphenylene sulfide layer. It can be subjected to high temperature resistance treatment during use, can prevent the outer side of the pipe from melting when the temperature is too high, can also prevent the pipe from burning when there is an open flame around, can prevent the pipe from being damaged, and prevent the leakage of the transported goods.

[0013] 2. The utility model has a negative pressure resistance function through the cooperation of a polystyrene layer, a rigid metal mesh layer and a polycarbonate layer. It can be subjected to negative pressure resistance treatment during use. When it is collided or impacted, it can reduce the damage to the tube caused by external force collision and extrusion, thereby reducing certain losses and extending the service life of the tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0015] Figure 2 It is a three-dimensional cross-sectional schematic diagram of the pipe structure of the utility model;

[0016] Figure 3 It is a three-dimensional cross-sectional schematic diagram of the high temperature resistant layer structure of the utility model;

[0017] Figure 4 It is a three-dimensional cross-sectional schematic diagram of the negative pressure resistant layer structure of the utility model.

[0018] In the figure: 1, tube body; 2, concave card block; 3, convex card block; 4, negative pressure resistant layer; 5, high temperature resistant layer; 6, wear resistant layer; 7, polyimide layer; 8, polyether ketone layer; 9, polyphenylene sulfide layer; 10, polystyrene layer; 11, metallic mesh layer; 12, polycarbonate layer. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 4A high temperature and negative pressure resistant polytetrafluoroethylene pipe comprises a pipe body 1, a concave block 2 is fixedly connected to the right side of the pipe body 1, a convex block 3 is fixedly connected to the left side of the pipe body 1, a negative pressure resistant layer 4 is fixedly sleeved on the outer surface of the pipe body 1, a high temperature resistant layer 5 is fixedly sleeved on the outer surface of the negative pressure resistant layer 4, a wear-resistant layer 6 is fixedly sleeved on the outer surface of the high temperature resistant layer 5, the wear-resistant layer 6 is made of nylon, and the concave block 2, the convex block 3 and the pipe body 1 are uniformly made of polytetrafluoroethylene.

[0020] See also Figure 2 and Figure 3 The high temperature resistant layer 5 includes a polyimide layer 7, the inner surface of the polyimide layer 7 is fixedly connected to the negative pressure resistant layer 4, the outer surface of the polyimide layer 7 is fixedly sleeved with a polyetherketone layer 8, the outer surface of the polyetherketone layer 8 is fixedly sleeved with a polyphenylene sulfide layer 9, the outer surface of the polyphenylene sulfide layer 9 is fixedly connected to the wear-resistant layer 6, the material of the polyimide layer 7 is polyimide, the material of the polyetherketone layer 8 is polyetherketone, and the material of the polyphenylene sulfide layer 9 is polyphenylene sulfide. By setting the high temperature resistant layer 5, it plays a role of temperature resistance. When encountering special circumstances during use, it can withstand higher temperatures to ensure that the substances transported inside the pipeline will not be affected.

[0021] See also Figure 2 and Figure 4 The negative pressure resistant layer 4 includes a polystyrene layer 10, the inner surface of the polystyrene layer 10 is fixedly connected to the tube body 1, the outer surface of the polystyrene layer 10 is fixedly sleeved with a rigid metal mesh layer 11, the outer surface of the rigid metal mesh layer 11 is fixedly sleeved with a polycarbonate layer 12, the outer surface of the polycarbonate layer 12 is fixedly connected to the high temperature resistant layer 5, the polystyrene layer 10 is made of polystyrene, the polycarbonate layer 12 is made of polycarbonate, and the rigid metal mesh layer 11 is made of rigid metal mesh. By setting the negative pressure resistant layer 4, it plays a pressure-bearing role, and can absorb and buffer the external force to protect the internal tube body 1 and prevent it from breaking when it is hit by external force during use.

[0022] See also Figure 1 and Figure 2 The inner surface of the polyimide layer 7 is fixedly connected to the negative pressure resistant layer 4 , and the outer surface of the polyphenylene sulfide layer 9 is fixedly connected to the wear-resistant layer 6 .

[0023] See also Figure 3 The inner surface of the polystyrene layer 10 is fixedly connected to the tube body 1 , and the outer surface of the polycarbonate layer 12 is fixedly connected to the high temperature resistant layer 5 .

[0024] When in use, multiple sections of identical pipes are connected at the ends through the concave card block 2 and the convex card block 3. After the connection, the two ends are respectively connected to the delivery point equipment and the receiving point equipment. After completing the above steps, pipeline transportation can be carried out. Through the cooperation of the polyimide layer 7, the polyether ketone layer 8 and the polyphenylene sulfide layer 9, the pipe can be prevented from being damaged when the temperature is too high and melting occurs or burning occurs nearby, and the leakage of the transported objects can be prevented. Through the cooperation of the polyphenylene sulfide layer 9, the rigid metal mesh layer 11 and the rigid metal mesh layer 11, the damage to the pipe caused by external force collision and extrusion can be reduced when it is collided or impacted, thereby reducing certain losses and extending the service life of the pipe. After the wear-resistant layer 6 is installed, the wear resistance of the pipe is improved.

[0025] In summary: the high temperature and negative pressure resistant polytetrafluoroethylene pipe, through the coordination of the polyimide layer 7, the polyether ketone layer 8, the polyphenylene sulfide layer 9, the polystyrene layer 10, the rigid metal mesh layer 11 and the polycarbonate layer 12, solves the problem that the existing polytetrafluoroethylene pipe does not have the function of high temperature resistance and negative pressure resistance during use.

Claims

1. A high temperature and negative pressure resistant polytetrafluoroethylene pipe, comprising a pipe body (1), characterized in that: The right side of the tube body (1) is fixedly connected with a concave clamping block (2), the left side of the tube body (1) is fixedly connected with a convex clamping block (3), the outer surface of the tube body (1) is fixedly sleeved with a negative pressure resistant layer (4), the outer surface of the negative pressure resistant layer (4) is fixedly sleeved with a high temperature resistant layer (5), and the outer surface of the high temperature resistant layer (5) is fixedly sleeved with a wear resistant layer (6).

2. The high temperature and negative pressure resistant polytetrafluoroethylene pipe according to claim 1, characterized in that: The high temperature resistant layer (5) comprises a polyimide layer (7), the outer surface of the polyimide layer (7) is fixedly covered with a polyetherketone layer (8), and the outer surface of the polyetherketone layer (8) is fixedly covered with a polyphenylene sulfide layer (9).

3. The high temperature and negative pressure resistant polytetrafluoroethylene pipe according to claim 1, characterized in that: The negative pressure resistant layer (4) comprises a polystyrene layer (10), the outer surface of the polystyrene layer (10) is fixedly sleeved with a rigid metal mesh layer (11), and the outer surface of the rigid metal mesh layer (11) is fixedly sleeved with a polycarbonate layer (12).

4. The high temperature and negative pressure resistant polytetrafluoroethylene pipe according to claim 2, characterized in that: The inner surface of the polyimide layer (7) is fixedly connected to the negative pressure resistant layer (4), and the outer surface of the polyphenylene sulfide layer (9) is fixedly connected to the wear-resistant layer (6).

5. The high temperature and negative pressure resistant polytetrafluoroethylene pipe according to claim 3, characterized in that: The inner surface of the polystyrene layer (10) is fixedly connected to the tube body (1), and the outer surface of the polycarbonate layer (12) is fixedly connected to the high temperature resistant layer (5).

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