Multi-layer composite CPVC pipe fitting

Abstract

The utility model relates to the technical field of CPVC (chlorinated polyvinyl chloride) pipes, and discloses a multi-layer composite CPVC pipe fitting which comprises a CPVC protective base pipe, a reinforcing layer is arranged on the outer surface of the CPVC protective base pipe and comprises filling protective glue, an axial protective strip is arranged in an inner cavity of the filling protective glue, an outer pipe is arranged on the outer surface of the reinforcing layer, and the outer pipe is connected with the CPVC protective base pipe. And an inner pipe is arranged on the inner surface of the CPVC protective base pipe. The CPVC protection base pipe, the reinforcing layer, the outer pipe and the inner pipe are arranged to jointly form the multi-layer composite CPVC pipe fitting, the outer pipe can improve the compression resistance effect of the device, the situation that the device is bent and collapsed due to stress is avoided, abrasion can be effectively resisted, and therefore abrasion of the outer wall of the device is reduced, the service life of the device is prolonged, and the service life of the device is prolonged. The inner pipe can effectively prevent corrosion of the interior of the CPVC protection base pipe, so that the service life of the base pipe is prolonged, and finally, the reinforcing layer can form a better stress surface, so that stress on one side can be conducted to the whole device, and the stress capacity of the pipe body is improved.

Description

Technical Field

[0001] This utility model relates to the field of CPVC pipe technology, specifically to a multi-layer composite CPVC pipe fitting. Background Technology

[0002] CPVC is a promising new type of engineering plastic. The resin is obtained by chlorination modification of polyvinyl chloride (PVC) resin. It is a white or pale yellow, odorless, tasteless, and non-toxic loose granules or powder. After chlorination, the irregularity and polarity of the molecular bonds in PVC resin increase, leading to increased solubility and chemical stability, thus improving the material's heat resistance and resistance to corrosion from acids, alkalis, salts, and oxidants. It also improves the resin's mechanical properties, including its heat distortion temperature. The chlorine content increases from 56.7% to 63-69%, the Vicat softening temperature increases from 72-82°C to 90-125°C, the maximum operating temperature reaches 110°C, and the long-term operating temperature is 95°C.

[0003] Existing CPVC pipes are prone to bending under external force during use, which affects the sealing performance of CPVC pipe joints and the poor wear resistance of the CPVC pipe itself. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a multi-layer composite CPVC pipe fitting to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer composite CPVC pipe fitting, comprising a CPVC protective base pipe, a reinforcing layer provided on the outer surface of the CPVC protective base pipe, an outer pipe provided on the outer surface of the reinforcing layer, and an inner pipe provided on the inner surface of the CPVC protective base pipe.

[0006] By adopting the above technical solution, a multi-layer composite CPVC pipe fitting is constructed by setting up a CPVC protective base pipe, a reinforcing layer, an outer pipe, and an inner pipe. The outer pipe can improve the pressure resistance of the device, prevent the device from bending and collapsing under stress, and effectively resist wear, thereby reducing wear on the outer wall of the device and extending its service life. The inner pipe can effectively prevent corrosion inside the CPVC protective base pipe, thereby extending the service life of the base pipe. Finally, the reinforcing layer can form a better stress-bearing surface, so that the force on one side can be transmitted to the entire device, improving the stress capacity of the pipe body.

[0007] Preferably, the reinforcing layer includes a protective filler, and the inner cavity of the protective filler is provided with an axial protective strip.

[0008] By adopting the above technical solution, a better force-bearing surface can be formed, so that the force on one side can be transmitted to the entire device, thereby improving the force-bearing capacity of the tube.

[0009] Preferably, the inner tube is made of glass fiber.

[0010] By adopting the above technical solution, the interior of the CPVC protective base pipe can be effectively protected against corrosion. At the same time, the glass fiber material has high high temperature resistance and can maintain structural stability in extreme high temperature environments, further improving the high temperature protection of the sound-absorbing cotton pipe fittings and effectively extending the service life of the sound-absorbing cotton pipe fittings, thereby extending the service life of the base pipe.

[0011] Preferably, the thickness of the inner tube is 0.5-0.9 mm.

[0012] Preferably, the axial protective strip has a cylindrical structure.

[0013] By adopting the above technical solutions, the stress-bearing capacity of the pipe body is improved.

[0014] Preferably, the CPVC protective base pipe is disposed between the inner pipe and the reinforcing layer, and the reinforcing layer is disposed between the CPVC protective base pipe and the outer pipe.

[0015] By adopting the above technical solution, the CPVC protective base pipe can be better protected.

[0016] Preferably, the outer tube is made of carbon fiber.

[0017] By adopting the above technical solutions, the compressive strength of the device can be improved, avoiding bending and collapse under stress. It can also effectively resist wear, thereby reducing wear on the outer wall of the device and extending its service life.

[0018] Preferably, the thickness of the inner tube is 0.8-1.3 mm.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention constructs a multi-layered composite CPVC pipe fitting by setting up a CPVC protective base pipe, a reinforcing layer, an outer pipe, and an inner pipe. The outer pipe improves the device's pressure resistance, preventing bending and collapse under stress, and effectively resists wear, thereby reducing wear on the outer wall of the device and extending its service life. The inner pipe effectively prevents corrosion inside the CPVC protective base pipe, thus extending the service life of the base pipe. Finally, the reinforcing layer forms a better stress-bearing surface, allowing the force on one side to be transmitted to the entire device, improving the pipe's stress-bearing capacity. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0023] Figure 3 The structure of this utility model Figure 1 A magnified view of a section at point A in the middle;

[0024] Figure 4 The structure of this utility model Figure 2 A magnified view of a section at point B.

[0025] In the diagram: 1. CPVC protective base pipe; 2. Reinforcing layer; 201. Filler protective adhesive; 202. Axial protection strip; 3. Outer pipe; 4. Inner pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1:

[0028] Reference Figure 1-4 A multi-layer composite CPVC pipe fitting includes a CPVC protective base pipe 1. A reinforcing layer 2 is provided on the outer surface of the CPVC protective base pipe 1. The reinforcing layer 2 includes a protective filler 201, and an axial protective strip 202 is provided in the inner cavity of the protective filler 201, which can form a better stress-bearing surface, allowing the force on one side to be transmitted to the entire device, improving the stress-bearing capacity of the pipe body. An outer tube 3 is provided on the outer surface of the reinforcing layer 2, and an inner tube 4 is provided on the inner surface of the CPVC protective base pipe 1. By setting the CPVC protective base pipe 1, the reinforcing layer 2, the outer tube 3, and the inner tube 4, a multi-layer composite CPVC pipe fitting is constructed. The outer tube 3 can improve the pressure resistance of the device, preventing bending and collapse under stress, and can also effectively resist wear, thereby reducing wear on the outer wall of the device and extending its service life. The inner tube 4 can effectively prevent corrosion inside the CPVC protective base pipe 1, thereby extending the service life of the base pipe. Finally, the reinforcing layer 2 can form a better stress-bearing surface, allowing the force on one side to be transmitted to the entire device, improving the stress-bearing capacity of the pipe body.

[0029] Example 2:

[0030] Reference Figure 1 , Figure 3 and Figure 4The inner tube 4 is made of fiberglass, which effectively protects the inside of the CPVC protective base tube 1 from corrosion. Fiberglass also has high high-temperature resistance, maintaining structural stability even in extreme high-temperature environments, further enhancing the high-temperature protection of the sound-absorbing cotton pipe fittings and effectively extending their service life, thereby extending the service life of the base tube. The thickness of the inner tube 4 is 0.5-0.9mm. The axial protection strip 202 has a cylindrical structure, improving the load-bearing capacity of the tube body. The CPVC protective base tube 1 is located between the inner tube 4 and the reinforcing layer 2, while the reinforcing layer 2 is located between the CPVC protective base tube 1 and the outer tube 3, providing better protection for the CPVC protective base tube 1. The outer tube 3 is made of carbon fiber, which improves the device's compressive strength, preventing bending and collapse under stress, and effectively resists wear, thus reducing wear on the outer wall of the device and extending its service life. The thickness of the inner tube 4 is 0.8-1.3mm.

[0031] The working principle is as follows:

[0032] In use, the outer tube 3 is made of carbon fiber, which improves the device's pressure resistance, prevents bending and collapse under stress, and effectively resists wear, thereby reducing wear on the outer wall and extending the device's service life. The inner tube 4 is made of fiberglass, which effectively protects the inside of the CPVC protective base tube 1 from corrosion. Fiberglass also has high high-temperature resistance, maintaining structural stability in extreme high-temperature environments, further improving high-temperature protection for the sound-absorbing cotton fittings and effectively extending their service life, thus extending the service life of the base tube. Finally, the combination of the protective adhesive 201 and the axial protective strip 202 in the reinforcing layer 2 creates a better stress-bearing surface, allowing the force on one side to be transmitted to the entire device, improving the tube's stress-bearing capacity.

[0033] In summary, this multi-layer composite CPVC pipe fitting, constructed by setting up a CPVC protective base pipe 1, a reinforcing layer 2, an outer pipe 3, and an inner pipe 4, forms a multi-layer composite CPVC pipe fitting. The outer pipe 3 improves the pressure resistance of the device, preventing bending and collapse under stress, and also effectively resists wear, thereby reducing wear on the outer wall of the device and extending its service life. The inner pipe 4 effectively prevents corrosion inside the CPVC protective base pipe 1, thus extending the service life of the base pipe. Finally, the reinforcing layer 2 forms a better stress-bearing surface, allowing the force on one side to be transmitted to the entire device, improving the stress-bearing capacity of the pipe body.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-layer composite CPVC pipe fitting, comprising a CPVC protective base pipe (1), characterized in that: The outer surface of the CPVC protective base tube (1) is provided with a reinforcing layer (2), the outer surface of the reinforcing layer (2) is provided with an outer tube (3), and the inner surface of the CPVC protective base tube (1) is provided with an inner tube (4).

2. The multi-layer composite CPVC pipe fitting according to claim 1, characterized in that: The reinforcing layer (2) includes a protective filler (201), and an axial protective strip (202) is provided in the inner cavity of the protective filler (201).

3. The multi-layer composite CPVC pipe fitting according to claim 1, characterized in that: The inner tube (4) is made of glass fiber.

4. A multi-layer composite CPVC pipe fitting according to claim 1, characterized in that: The thickness of the inner tube (4) is 0.5-0.9 mm.

5. A multi-layer composite CPVC pipe fitting according to claim 2, characterized in that: The axial protective strip (202) has a cylindrical structure.

6. A multi-layer composite CPVC pipe fitting according to claim 1, characterized in that: The CPVC protective base pipe (1) is located between the inner pipe (4) and the reinforcing layer (2), and the reinforcing layer (2) is located between the CPVC protective base pipe (1) and the outer pipe (3).

7. A multi-layer composite CPVC pipe fitting according to claim 1, characterized in that: The outer tube (3) is made of carbon fiber.

8. A multi-layer composite CPVC pipe fitting according to claim 1, characterized in that: The thickness of the inner tube (4) is 0.8-1.3 mm.

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