Steel lining polytetrafluoroethylene pipeline
By setting a detection collar on the outside of the connecting collar of the steel-lined tetrafluoro pipe and forming a cavity, combined with the monitoring components, the problem of difficulty in detecting leakage at the pipe body connection in the prior art is solved, and timely detection and reminding of leakage is achieved. Ensures safety and stability of the pipeline.
Patent Information
- Application Number
- CN202420535263.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-03-19
AI Technical Summary
Existing steel-lined tetrafluoro pipelines are difficult to detect leakage at the pipe body connections, and cannot effectively monitor and prevent leakage.
A steel-lined tetrafluoro pipe is designed. By setting a detection collar on the outside of the connecting collar and forming a cavity, combined with a monitoring component, the inner wall of the detection collar is provided with grooves and through holes, and the leakage liquid is introduced through the drainage tube. The bottle was collected and reacted with the detection reagent, and the color was discolored and the leak was revealed.
Timely detection and reminder of leakage at pipe connections is achieved to ensure that workers can detect and repair leaks in a timely manner and prevent dangerous liquid leakage.
Smart Images
Figure CN222458692U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of pipelines, and in particular relates to a steel-lined polytetrafluoroethylene pipeline. Background Art
[0002] Steel-lined PTFE pipes, also known as steel-lined polytetrafluoroethylene (PTFE) pipes, have excellent temperature resistance and corrosion resistance and are ideal for conveying highly corrosive media such as nitric acid, sulfuric acid, hydrofluoric acid, phosgene, chlorine, aqua regia, mixed acid, bromide and other organic solvents.
[0003] For example, patent CN218543457U provides a new type of steel-lined polytetrafluoroethylene pipe. This patent realizes the function of protecting the outside of the steel-lined pipe through the structural design of the protective mechanism, thereby improving the wear resistance of the outside of the steel-lined pipe. However, the above patent sets a cavity and a delivery pipe, and the cavity on the anti-corrosion layer is annularly surrounded by the polytetrafluoroethylene inner layer. When the polytetrafluoroethylene is broken, the gas or liquid inside it will leak into the cavity. The delivery pipe can deliver the leaked gas or liquid to the collection bottle, and observe whether it changes color to identify whether it is leaking. However, in reality, the connection of the pipe body is most prone to leakage, and the above patent can only detect leakage in the middle of a single pipe, and cannot detect whether the connection is leaking. Utility Model Content
[0004] The present application provides a steel-lined polytetrafluoroethylene pipe to solve the above-mentioned technical problems.
[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: a steel-lined polytetrafluoroethylene pipe, comprising a steel-lined pipe, a connecting ring and a detection ring; flanges are fixedly connected on both sides of the steel-lined pipe, and the pipe openings in the flanges are connected through connecting rings and detection rings; wherein, the detection ring is placed on the outside of the connecting ring and is connected to a monitoring component to detect whether there is leakage between the connecting ring and the pipe opening; there is a cavity between the inner wall of the detection ring and the outer wall of the connecting ring.
[0006] Furthermore, a buffer anti-corrosion layer and a polytetrafluoroethylene layer are sequentially arranged inside the steel lined pipeline.
[0007] Furthermore, a groove is provided on the inner side wall of the detection collar, and a through hole penetrating the detection collar is provided on a side of the groove close to the ground.
[0008] Furthermore, the monitoring component includes a drainage tube connected to the through hole and a collecting bottle connected to the drainage tube, and the through hole is connected to the collecting bottle through the drainage tube.
[0009] Furthermore, a detection reagent is provided in the collection bottle.
[0010] Furthermore, the flange is provided with screw holes for inserting connecting bolts and embedding grooves for embedding the detection collar.
[0011] The beneficial effect of the present application is that the present application arranges a detection collar outside a normal connecting collar and forms a cavity, thereby draining the liquid leaking between the connecting pipes through the groove and the drainage tube into the collection bottle and reacting with the detection reagent to change color, thereby promptly reminding the staff of the leakage so as to facilitate timely repair of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a structural schematic diagram of an embodiment of a steel-lined polytetrafluoroethylene pipe of the present application;
[0013] Figure 2 yes Figure 1 A schematic structural diagram of an embodiment of a detection collar;
[0014] Figure 3 yes Figure 1 Schematic diagram of the structure of area A in FIG. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.
[0016] like Figure 1-3 As shown, a steel-lined polytetrafluoroethylene pipe includes a steel-lined pipe 1, a connecting collar 2 and a detection collar 3; flanges 4 are fixedly connected on both sides of the steel-lined pipe 1, and the pipe openings in the flanges 4 are connected through the connecting collar 2 and the detection collar 3; wherein the detection collar 3 is sleeved on the outside of the connecting collar 2 and is connected to a monitoring component 5 to detect whether leakage occurs between the connecting collar 2 and the pipe opening; a cavity 6 is provided between the inner wall of the detection collar 3 and the outer wall of the connecting collar 2. The connecting collar 2 in the above design can connect the ports of the two pipes, and the detection collar 3 is arranged on the outside of the connecting collar 2 to form a cavity 6, so that the leaked dangerous liquid can be collected, and then the leakage status can be found through the monitoring component 5, so that the workers can find the leakage of the pipe body in time and perform maintenance.
[0017] The steel-lined pipe 1 is provided with a buffer anti-corrosion layer 11 and a polytetrafluoroethylene layer 12 in sequence. The polytetrafluoroethylene layer 12 in the above design is used to directly contact the corrosive liquid, while the buffer anti-corrosion layer 11 can reduce the corrosion and impact of the external environment on the polytetrafluoroethylene layer 12 to prevent the pipe body from rupturing.
[0018] The inner wall of the detection collar 3 is provided with a groove 31, and a through hole 32 penetrating the detection collar 3 is provided on the side of the groove 31 close to the ground. The detection collar 3 designed as above can serve as a second line of protection, receiving the liquid leaking from the connecting collar 2 and effectively draining the leaked liquid into the groove 31, so as to facilitate the liquid to flow into the through hole 32.
[0019] The monitoring assembly 5 includes a drainage tube 51 connected to the through hole 32 and a collecting bottle 52 connected to the drainage tube 51. The through hole 32 is connected to the collecting bottle 52 through the drainage tube 51. The above design guides the leaked liquid into the collecting bottle 52 through the drainage tube 51, thereby detecting liquid leakage.
[0020] The collection bottle 52 is provided with a detection reagent; since high-risk liquids are generally acidic or alkaline liquids, when reacting with the pH detection reagent, a color change will occur, so the detection reagent can be a pH detection reagent. In other embodiments, other corresponding reagents that react with the leaked liquid can also be selected, so that the worker can observe the changes in the collection bottle 52 and find the leakage in time.
[0021] The flange 4 is provided with screw holes 42 for inserting the connecting bolts 41 and an embedding groove 43 for embedding the detection collar 3. The embedding groove 43 in the above design can effectively fix the detection collar 3 to prevent the leaked liquid from leaking again from the detection collar 3 due to loose installation.
[0022] The specific working method is to align the pipe mouth of the steel-lined pipe 1 of the present application, and sleeve the connecting collar 2 on the outside of the pipe mouth, then place the detection collar 3 in the embedded groove 43, align the screw holes 42 between the flanges 4, and tighten them through the connecting bolts 41 to complete the connection between the pipes. When there is no leakage between the pipes, there is no change in the collecting bottle 52. When leakage occurs between the pipe mouth and the connecting collar 2, the liquid randomly enters the cavity 6, and flows into the through hole 32 at the bottom of the groove 31 due to gravity, and then enters the collecting bottle 52 to react with the detection reagent, so that the reagent bottle changes color, which makes it easier for workers to find leakage and repair it in time.
[0023] The present invention arranges a detection collar 3 outside the normal connection collar 2 to form a cavity 6, so that the liquid leaking between the connecting pipes is then drained into the collection bottle 52 through the groove 31 and the drainage tube 51 and changes color in reaction with the detection reagent, thereby promptly reminding the staff of the leakage so as to repair the pipe in time.
[0024] The above description is only an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A steel lined polytetrafluoroethylene pipe, characterized in that: include: Steel-lined pipes, connection collars and test collars; Flanges are fixedly connected on both sides of the steel-lined pipe, and the pipe openings in the flanges are connected via the connecting collar and the detection collar; wherein the detection collar is placed outside the connecting collar and is connected to a monitoring component to detect whether leakage occurs between the connecting collar and the pipe opening; a cavity is provided between the inner wall of the detection collar and the outer wall of the connecting collar.
2. A steel-lined polytetrafluoroethylene pipe according to claim 1, characterized in that: A buffer anti-corrosion layer and a polytetrafluoroethylene layer are sequentially arranged on the inner side of the steel-lined pipeline.
3. A steel-lined polytetrafluoroethylene pipe according to claim 2, characterized in that: The inner side wall of the detection collar is provided with a groove, and a through hole penetrating the detection collar is provided on a side of the groove close to the ground.
4. A steel-lined polytetrafluoroethylene pipe according to claim 3, characterized in that: The monitoring assembly includes a drainage tube connected to the through hole and a collecting bottle connected to the drainage tube, and the through hole is communicated with the collecting bottle through the drainage tube.
5. A steel-lined polytetrafluoroethylene pipe according to claim 4, characterized in that: The collecting bottle is provided with a detection reagent.
6. A steel-lined polytetrafluoroethylene pipe according to claim 1, characterized in that: The flange is provided with screw holes for inserting connecting bolts and embedding grooves for embedding the detection collar.