Teflon-lined pipe fitting
By designing the tetrafluoro pipe fittings lined with wire mesh cage and tetrafluoro layer in the pipe fittings, combined with the flange and guard plate structure, the mechanical strength and corrosion problems of the pipe fittings when transporting strong acids and alkalis are solved, and stable transportation and protection effects are achieved in high-pressure environments.
Patent Information
- Application Number
- CN202422168391.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-05
AI Technical Summary
When existing pipe fittings transport special solvents such as strong acids and alkalis, they lack mechanical strength and corrosion resistance, especially in high-pressure application scenarios, which are prone to deformation and corrosion damage.
It adopts a tetrafluoro lined pipe fitting design, a wire mesh cage is lined with a tetrafluoro layer on its inner side, and combines the installation of flange, clamp cover and guard structure to enhance mechanical strength and provide anti-corrosion protection.
Improves the mechanical strength and corrosion resistance of pipe fittings, reduces corrosion damage, ensures stable transportation under high pressure environments, and provides waterproof, dustproof and impact protection.
Smart Images
Figure CN223063356U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of conveying pipe fittings, in particular to a pipe fitting lined with tetrafluoroethylene. Background Technique
[0002] Pipe fittings refer to the general term for components in a pipeline system that play roles such as connection, control, direction change, flow diversion, sealing, and support. Generally, when some special solvents such as strong acids and strong alkalis are transported during the installation and use of pipe fittings, the special solvents will cause certain corrosion damage to the inside of the pipe fittings. Although some specially made anti-corrosion pipe fittings can prevent corrosion of the pipe fittings, the pipe fittings made of special materials have poor mechanical strength and pressure resistance, and the pipe body is prone to deformation, which is insufficient in application scenarios facing high pressure or requiring a certain mechanical strength, and there are no measures to improve both the internal mechanical strength and anti-corrosion performance of the pipe fittings.
[0003] Now, a new type of pipe fitting lined with tetrafluoroethylene is proposed to solve the above deficiencies. Content of the Utility Model
[0004] The purpose of the utility model is to provide a pipe fitting lined with tetrafluoroethylene to solve the problems of poor internal mechanical strength and anti-corrosion performance of the pipe fittings mentioned in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A pipe fitting lined with tetrafluoroethylene, including a pipe body, on both sides of the outside of the pipe body, mounting flange plates are respectively welded and fixed, and reserved mounting holes are opened inside the mounting flange plates. A lining pipe is welded and fixed inside the pipe body, and a wire mesh cage is welded and fixed inside the lining pipe. A tetrafluoro layer is lined inside the wire mesh cage.
[0006] Preferably, the mounting flange plates are symmetrically arranged about the vertical center line of the pipe body. The reserved mounting holes penetrate through the inside of the mounting flange plates, and multiple groups of the reserved mounting holes are arranged at equal intervals in a ring inside the mounting flange plates.
[0007] Preferably, the lining pipe is a steel component.
[0008] Preferably, on the top of the outside of the right mounting flange plate, an upper cover is provided, and a lower cover is provided at the bottom of the upper cover. Connecting bolts are respectively provided at the bottom ends of both ends of the upper cover, and connecting nuts are respectively provided at the top ends of both ends of the lower cover.
[0009] Preferably, the bottom ends of the connecting bolts respectively penetrate through the inside of the upper cover and the lower cover, and the connecting nuts are rotatably connected to the outside of the connecting bolts.
[0010] Preferably, openings are respectively opened inside both sides of the upper cover and the lower cover, and the openings respectively penetrate through the inside of both sides of the upper cover and the lower cover.
[0011] Preferably, a first guard plate is provided at the rear end of the pipe body, and a second guard plate is provided at the front end of the pipe body. Fixing bolts are respectively provided on both sides of the rear end of the first guard plate and both sides of the front end of the second guard plate. Fixing blocks are respectively welded and fixed on both sides of the two ends of the pipe body, and three groups of fixing blocks are vertically and equidistantly arranged on both sides of the two ends of the pipe body. Threaded holes are formed inside the fixing blocks.
[0012] Preferably, three groups of fixing bolts are vertically and equidistantly arranged on both sides of the rear end of the first guard plate and both sides of the front end of the fixing block. The fixing bolts respectively penetrate through the interiors of the first guard plate and the second guard plate and are rotatably connected in the threaded holes.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: This tetrafluoro-lined pipe fitting not only improves the internal mechanical strength and anti-corrosion performance of the pipe fitting simultaneously, realizes convenient waterproof and dustproof for the external installation and connection position of the tetrafluoro-lined pipe fitting, but also realizes convenient anti-collision protection for the outer side of the tetrafluoro pipe fitting;
[0014] (1) By providing a pipe body, mounting flange, inner lining pipe, wire mesh cage and reserved installation holes, during the use of the tetrafluoro-lined pipe fitting, by adding an inner lining pipe and a wire mesh cage inside the pipe body, auxiliary support and strengthening can be carried out inside the pipe fitting, improving the internal mechanical strength and compressive performance of the pipe fitting. At the same time, a tetrafluoro layer is lined inside the wire mesh cage, and the tetrafluoro layer penetrates through the inner side of the pipe fitting. When using the pipe fitting to transport some corrosive solvents, the internal corrosion and damage of the pipe fitting can be reduced, and the internal anti-corrosion performance of the pipe fitting can be improved. It can be used for transportation in application scenarios such as high pressure or requiring certain mechanical strength;
[0015] (2) By providing a pipe body, mounting flange, upper cover, lower cover, connecting bolts, connecting nuts and openings, after the pipe fitting uses the mounting flange and is butt-jointed and installed using bolt parts, on the outer sides of the two mounting flanges at the butt-joint position of the two pipe fittings, the upper cover and the lower cover can be respectively sleeved from the top and bottom outside the mounting flange and butted. Then, after using the connecting bolts to penetrate through the interiors of the upper cover and the lower cover and using the connecting nuts to tighten on the outside of the connecting bolts, the upper cover and the lower cover can be installed and fixed on the outer sides of the mounting flanges at the pipe fitting connection position. Through the provided upper cover and lower cover, the connection components at the pipe fitting connection position can be externally covered for waterproof and dustproof, reducing the corrosion, rust and damage of the connection components;
[0016] (3) By providing a pipe body, a first protective plate, a fixing block, fixing bolts, threaded holes and a second protective plate, when the pipe fitting is in use, after the first protective plate and the second protective plate provided at both ends outside the pipe body are respectively fixed and installed on the fixing block by the fixing bolts, the outer side of the pipe fitting body can be assisted in anti-impact protection by using the first protective plate and the second protective plate, reducing external damage when the pipe fitting is in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a front sectional structure schematic diagram of the present utility model;
[0018] Figure 2 is a side view structure schematic diagram of the tetrafluoro layer of the present utility model;
[0019] Figure 3 is an enlarged side sectional structure schematic diagram of the upper retaining cover of the present utility model;
[0020] Figure 4 is a side view structure schematic diagram of the first protective plate of the present utility model.
[0021] In the figure: 1, mounting flange; 2, pipe body; 3, inner lining pipe; 4, wire mesh cage; 5, upper retaining cover; 6, lower retaining cover; 7, first protective plate; 8, reserved mounting hole; 9, connecting bolt; 10, connecting nut; 11, opening; 12, fixing block; 13, fixing bolt; 14, threaded hole; 15, second protective plate; 16, tetrafluoro layer. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0023] Embodiment 1: Please refer to Figures 1-4 , a tetrafluoro-lined pipe fitting, including a pipe body 2, mounting flanges 1 are respectively welded and fixed on both sides outside the pipe body 2, and reserved mounting holes 8 are opened inside the mounting flanges 1. An inner lining pipe 3 is welded and fixed inside the pipe body 2, and a wire mesh cage 4 is welded and fixed inside the inner lining pipe 3. A tetrafluoro layer 16 is lined inside the wire mesh cage 4;
[0024] The mounting flanges 1 are symmetrically arranged about the vertical center line of the pipe body 2. The reserved mounting holes 8 penetrate through the inside of the mounting flanges 1, and multiple groups of the reserved mounting holes 8 are annularly and equidistantly arranged inside the mounting flanges 1. The inner lining pipe 3 is a steel component;
[0025] Specifically, asFigure 1 and Figure 2 As shown in Figure 2 , by adding a lining pipe 3 and a wire mesh cage 4 inside the pipe body 2, auxiliary support and strengthening can be carried out inside the pipe fitting, improving the mechanical strength and compressive performance inside the pipe fitting. At the same time, a tetrafluoro layer 16 is lined inside the wire mesh cage 4, and the tetrafluoro layer 16 runs through the inside of the pipe fitting. When using the pipe fitting to transport some corrosive solvents, the corrosion damage inside the pipe fitting can be reduced, and the anti-corrosion performance inside the pipe fitting can be improved.
[0026] Embodiment 2: At the top of the outside of the right-side mounting flange 1, an upper cover 5 is provided, and at the bottom of the upper cover 5, a lower cover 6 is provided. At the bottom of both ends of the upper cover 5, connecting bolts 9 are respectively provided, and at the top of both ends of the lower cover 6, connecting nuts 10 are respectively provided. The bottom ends of the connecting bolts 9 respectively penetrate through the interiors of the upper cover 5 and the lower cover 6, and the connecting nuts 10 are rotatably connected to the outside of the connecting bolts 9. Openings 11 are respectively formed inside both sides of the upper cover 5 and the lower cover 6, and the openings 11 respectively penetrate through the interiors of both sides of the upper cover 5 and the lower cover 6;
[0027] Specifically, as Figure 1 and Figure 3 shown, after the pipe fitting uses the mounting flange 1 and is butt-mounted using bolt parts, at the outside of the two mounting flanges 1 at the butt-joint position of the two pipe fittings, the upper cover 5 and the lower cover 6 can be respectively sleeved downward and upward from the top and bottom of the outside of the mounting flange 1 and then butted. After that, by using the connecting bolts 9 to penetrate through the interiors of the upper cover 5 and the lower cover 6 and using the connecting nuts 10 to be tightened on the outside of the connecting bolts 9, the upper cover 5 and the lower cover 6 can be installed and fixed on the outside of the mounting flange 1 at the pipe fitting connection position. Through the provided upper cover 5 and lower cover 6, the connection components at the pipe fitting connection position can be externally covered to prevent water and dust.
[0028] Embodiment 3: A first guard plate 7 is provided at the rear end of the pipe body 2, and a second guard plate 15 is provided at the front end of the pipe body 2. At both sides of the rear end of the first guard plate 7 and both sides of the front end of the second guard plate 15, fixing bolts 13 are respectively provided. At both sides of both ends of the pipe body 2, fixing blocks 12 are respectively welded and fixed, and three groups of fixing blocks 12 are vertically arranged at equal intervals on both sides of both ends of the pipe body 2. Threaded holes 14 are formed inside the fixing blocks 12, and three groups of fixing bolts 13 are vertically arranged at equal intervals on both sides of the rear end of the first guard plate 7 and both sides of the front end of the fixing blocks 12. The fixing bolts 13 respectively penetrate through the interiors of the first guard plate 7 and the second guard plate 15 and are rotatably connected in the threaded holes 14;
[0029] Specifically, as Figure 1 and Figure 4As shown, the first guard plate 7 and the second guard plate 15 provided at both ends outside the pipe body 2 can be respectively fixedly installed on the fixing block 12 by using fixing bolts 13. After that, the outer side of the pipe fitting main body can be assisted in impact protection by using the first guard plate 7 and the second guard plate 15.
[0030] Working principle: During the use of the lined PTFE pipe fitting of the present invention, by adding a lining pipe 3 and a wire mesh cage 4 inside the pipe body 2, the inside of the pipe fitting can be assisted in support and strengthening, improving the mechanical strength and compressive performance inside the pipe fitting. At the same time, a PTFE layer 16 is lined inside the wire mesh cage 4, and the PTFE layer 16 runs through the inside of the pipe fitting. When using the pipe fitting to transport some corrosive solvents, the corrosion damage inside the pipe fitting can be reduced, and the anti-corrosion performance inside the pipe fitting can be improved. At the same time, after the pipe fitting is used and installed with a flange 1 and butt-connected by using bolt parts, at the outer sides of the two flanges 1 at the butt-joint position of the two pipe fittings, the upper cover 5 and the lower cover 6 can be respectively sleeved from the top and bottom outside the flange 1 and butted. Then, after using the connecting bolt 9 to penetrate through the inside of the upper cover 5 and the lower cover 6 and using the connecting nut 10 to tighten on the outside of the connecting bolt 9, the upper cover 5 and the lower cover 6 can be installed and fixed on the outer side of the flange 1 at the pipe fitting connection position. The upper cover 5 and the lower cover 6 provided can waterproof and dustproof the connection components at the pipe fitting connection position. And when the pipe fitting is in use, the first guard plate 7 and the second guard plate 15 provided at both ends outside the pipe body 2 can be respectively fixedly installed on the fixing block 12 by using fixing bolts 13. After that, the outer side of the pipe fitting main body can be assisted in impact protection by using the first guard plate 7 and the second guard plate 15.
[0031] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.
Claims
1. A PTFE-lined pipe fitting, comprising a pipe body (2), characterized in that: Mounting flange plates (1) are respectively welded and fixed on both sides of the outside of the pipe body (2), and reserved mounting holes (8) are formed inside the mounting flange plates (1). A lining pipe (3) is welded and fixed inside the pipe body (2), and a wire mesh cage (4) is welded and fixed inside the lining pipe (3). A tetrafluoro layer (16) is lined inside the wire mesh cage (4).
2. A teflon-lined pipe fitting according to claim 1, characterized in that: The mounting flange plates (1) are symmetrically arranged about the vertical center line of the pipe body (2). The reserved mounting holes (8) penetrate through the inside of the mounting flange plates (1), and multiple groups of the reserved mounting holes (8) are arranged at equal intervals in a ring inside the mounting flange plates (1).
3. A tetrafluoro-lined pipe fitting according to claim 1, characterized in that: The lining pipe (3) is a steel component.
4. A teflon-lined pipe fitting according to claim 1, wherein: A upper cover (5) is arranged at the top of the outside of the right mounting flange plate (1), and a lower cover (6) is arranged at the bottom of the upper cover (5). Connecting bolts (9) are respectively arranged at the bottoms of both ends of the upper cover (5), and connecting nuts (10) are respectively arranged at the tops of both ends of the lower cover (6).
5. A tetrafluoro-lined pipe fitting according to claim 4, characterized in that: The bottoms of the connecting bolts (9) respectively penetrate through the inside of the upper cover (5) and the lower cover (6), and the connecting nuts (10) are rotatably connected to the outside of the connecting bolts (9).
6. A tetrafluoro-lined pipe fitting according to claim 4, characterized in that: Openings (11) are respectively formed inside both sides of the upper cover (5) and the lower cover (6), and the openings (11) respectively penetrate through the inside of both sides of the upper cover (5) and the lower cover (6).
7. A teflon-lined pipe fitting according to claim 1, characterized in that: A first guard plate (7) is arranged at the rear end of the pipe body (2), a second guard plate (15) is arranged at the front end of the pipe body (2). Fixing bolts (13) are respectively arranged at both sides of the rear end of the first guard plate (7) and both sides of the front end of the second guard plate (15). Fixing blocks (12) are respectively welded and fixed on both sides of both ends of the pipe body (2), and three groups of the fixing blocks (12) are arranged at equal intervals vertically on both sides of both ends of the pipe body (2). Threaded holes (14) are formed inside the fixing blocks (12).
8. A teflon-lined pipe fitting according to claim 7, characterized in that: Three groups of the fixing bolts (13) are respectively arranged at equal intervals vertically on both sides of the rear end of the first guard plate (7) and both sides of the front end of the fixing blocks (12). The fixing bolts (13) respectively penetrate through the inside of the first guard plate (7) and the second guard plate (15) and are rotatably connected in the threaded holes (14).