PVC pipe with anti-corrosion structure
By installing an anti-corrosion inner lining, a reinforcing layer, and a sealing ring at the joints of PVC pipes, the problem of poor sealing at PVC pipe joints is solved, achieving higher sealing performance and corrosion resistance, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU XINGYUAN NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-12
AI Technical Summary
Existing PVC pipes have poor sealing at joints, are susceptible to corrosion, leading to shortened service life and potential leakage problems.
It adopts a corrosion-resistant inner liner, a reinforcing layer and a sealing ring structure, combined with bolt connection and flange design, to enhance sealing performance and prevent corrosion. It includes a polytetrafluoroethylene inner liner, a PVC reinforcing layer and an outer protective layer, and uses sealing rings to enhance the sealing effect at the connection.
It effectively prevents corrosion at the joints, strengthens the pipe structure, prevents leakage, extends service life, and improves the sealing and corrosion resistance of the joints.
Smart Images
Figure CN224352626U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PVC pipe technology, specifically to a PVC pipe with an anti-corrosion structure. Background Technology
[0002] In modern construction, water supply and drainage engineering, and chemical transportation, polyvinyl chloride (PVC) pipes have been widely used due to their advantages such as low cost, good chemical stability, and convenient installation. However, in actual use, existing PVC pipes are usually connected by simple socket or glue bonding, without a dedicated sealing structure. This connection method has obvious defects, resulting in poor sealing at the joint, allowing external moisture, corrosive gases, or liquids to easily seep into the joint. Especially during long-term use, under the influence of humid environments and acidic or alkaline media, the joint is prone to corrosion, which not only shortens the service life of the PVC pipe but may also cause leakage problems, resulting in water waste, environmental pollution, and even threatening the structural safety of buildings.
[0003] To address this issue, we propose a PVC pipe with a corrosion-resistant structure. Utility Model Content
[0004] The purpose of this invention is to provide a PVC pipe with a corrosion-resistant structure, which solves the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a PVC pipe with an anti-corrosion structure, comprising a first pipe body and a second pipe body, wherein the first pipe body and the second pipe body are made of the same material, a first flange is fixedly installed on the outer wall of the right end of the first pipe body, and a second flange is fixedly installed on the outer wall of the left end of the second pipe body, wherein the first flange and the second flange are fixedly installed by bolts, and a sealing component is provided at the installation point of the first pipe body and the second pipe body.
[0006] Preferably, a shock-absorbing pad is filled between the first flange and the second flange. One side of the shock-absorbing pad is fixedly installed on the surface of the first flange, and the other side of the shock-absorbing pad is in contact with the surface of the second flange. The shock-absorbing pad can achieve a shock-absorbing effect and prevent loosening between the first flange and the second flange.
[0007] Preferably, the first pipe body includes an inner layer, the inner wall of which is fixedly fitted with an anti-corrosion lining layer, the outer wall of which is fixedly fitted with a PVC reinforcement layer, and the outer wall of which is fixedly fitted with an outer protective layer.
[0008] Preferably, the anti-corrosion lining layer is made of polytetrafluoroethylene or ethylene-tetrafluoroethylene copolymer, which can effectively resist the erosion of strong acids, strong alkalis, organic solvents, etc.
[0009] Preferably, the PVC reinforcement layer is made of PVC resin, which can enhance the main structure of the pipe.
[0010] Preferably, the outer protective layer is made of PVC material with added ultraviolet absorbers and antioxidants, which can prevent aging and corrosion caused by ultraviolet rays, oxygen and other factors.
[0011] Preferably, the sealing assembly includes a first sealing ring, one side of which is fixedly installed to the end face of the second tube, the other end of which is engaged with a groove formed on the end face of the first tube, a second sealing ring being engaged with the inner wall of the first sealing ring, the outer wall of the second sealing ring being in contact with the inner wall of the first tube, and a third sealing ring being engaged with the outer wall of the first sealing ring, the third sealing ring being fixedly installed to the outer wall of the first tube.
[0012] This invention provides a PVC pipe with a corrosion-resistant structure. This PVC pipe with a corrosion-resistant structure has the following advantages:
[0013] (1) The PVC pipe with anti-corrosion structure can enhance the sealing effect between the first pipe body and the second pipe body by setting the first sealing ring, the second sealing ring and the third sealing ring, avoiding gaps at the connection and preventing internal corrosion.
[0014] (2) The PVC pipe with anti-corrosion structure can effectively resist the erosion of strong acids, strong alkalis, organic solvents, etc. through the anti-corrosion layer, strengthen the main structure of the pipe through the PVC reinforcement layer, and prevent aging and corrosion caused by ultraviolet rays, oxygen, etc. through the outer protective layer. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a PVC pipe with an anti-corrosion structure according to the present invention;
[0016] Figure 2 This utility model relates to a PVC pipe with an anti-corrosion structure. Figure 1 A schematic diagram of the cross-sectional structure;
[0017] Figure 3 This utility model relates to a PVC pipe with an anti-corrosion structure. Figure 2 Enlarged structural diagram at point A in the diagram;
[0018] Figure 4This is a schematic diagram of the first layered structure of a PVC pipe with an anti-corrosion structure according to the present invention.
[0019] In the diagram: 1. First pipe body; 11. Inner layer; 12. Corrosion-resistant inner lining layer; 13. PVC reinforcement layer; 14. Outer protective layer; 2. Second pipe body; 3. First flange; 4. Second flange; 5. Shock-absorbing pad; 6. First sealing ring; 7. Second sealing ring; 8. Third sealing ring. Detailed Implementation
[0020] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.
[0021] like Figure 1-4 As shown, this utility model provides a technical solution: a PVC pipe with an anti-corrosion structure, including a first pipe body 1 and a second pipe body 2. The first pipe body 1 includes an inner layer 11, an anti-corrosion inner lining layer 12 fixedly installed on the inner wall of the inner layer 11, a PVC reinforcing layer 13 fixedly installed on the outer wall of the inner layer 11, and an outer protective layer 14 fixedly installed on the outer wall of the PVC reinforcing layer 13. The anti-corrosion inner lining layer 12 is made of polytetrafluoroethylene or ethylene-tetrafluoroethylene copolymer, which can effectively resist the corrosion of strong acids, strong alkalis, organic solvents, etc. The PVC reinforcing layer 13 is made of PVC resin, which can strengthen the main structure of the pipe. The outer protective layer 14 is made of PVC material with added ultraviolet absorbers and antioxidants, which can effectively resist the corrosion of strong acids, strong alkalis, organic solvents, etc. To prevent aging and corrosion caused by ultraviolet rays, oxygen, etc., the first pipe body 1 and the second pipe body 2 are made of the same material. A first flange 3 is fixedly installed on the outer wall of the right end of the first pipe body 1, and a second flange 4 is fixedly installed on the outer wall of the left end of the second pipe body 2. The first flange 3 and the second flange 4 are fixedly installed together by bolts. A shock-absorbing pad 5 is filled between the first flange 3 and the second flange 4. One side of the shock-absorbing pad 5 is fixedly installed with the surface of the first flange 3, and the other side of the shock-absorbing pad 5 is in contact with the surface of the second flange 4. The shock-absorbing pad 5 can play a shock-absorbing role and prevent the first flange 3 and the second flange 4 from loosening. The installation position of the first pipe body 1 and the second pipe body 2 is equipped with a sealing component.
[0022] The sealing assembly includes a first sealing ring 6, one side of which is fixedly installed to the end face of the second pipe body 2, and the other end of which is engaged with a groove on the end face of the first pipe body 1. A second sealing ring 7 is engaged with the inner wall of the first sealing ring 6, and the outer wall of the second sealing ring 7 is in contact with the inner wall of the first pipe body 1. A third sealing ring 8 is engaged with the outer wall of the first sealing ring 6 and is fixedly installed to the outer wall of the first pipe body 1. The cooperation between the first, second, and third sealing rings can enhance the sealing effect between the first and second pipe bodies and effectively prevent internal corrosion.
[0023] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model. Furthermore, it should be noted that the components of this utility model are not limited to the overall application described above. Each technical feature described in the specification of this utility model can be used individually or in combination as needed. Therefore, this utility model naturally covers other combinations and specific applications related to the points of this utility model.
Claims
1. A PVC pipe with a corrosion-resistant structure, comprising a first pipe body (1) and a second pipe body (2), wherein the first pipe body (1) and the second pipe body (2) are made of the same material, characterized in that: A first flange (3) is fixedly installed on the outer wall of the right end of the first pipe body (1), and a second flange (4) is fixedly installed on the outer wall of the left end of the second pipe body (2). The first flange (3) and the second flange (4) are fixedly installed by bolts. The installation points of the first pipe body (1) and the second pipe body (2) are provided with sealing components.
2. A PVC pipe with an anti-corrosion structure according to claim 1, characterized in that: A shock-absorbing pad (5) is filled between the first flange (3) and the second flange (4). One side of the shock-absorbing pad (5) is fixedly installed on the surface of the first flange (3), and the other side of the shock-absorbing pad (5) is in contact with the surface of the second flange (4).
3. A PVC pipe with an anti-corrosion structure according to claim 1, characterized in that: The first pipe body (1) includes an inner layer (11), the inner wall of which is fixedly installed with an anti-corrosion inner lining layer (12), the outer wall of which is fixedly installed with a PVC reinforcement layer (13), and the outer wall of which is fixedly installed with an outer protective layer (14).
4. A PVC pipe with an anti-corrosion structure according to claim 3, characterized in that: The anti-corrosion lining (12) is made of polytetrafluoroethylene or ethylene-tetrafluoroethylene copolymer.
5. A PVC pipe with an anti-corrosion structure according to claim 3, characterized in that: The PVC reinforcement layer (13) is made of PVC resin.
6. A PVC pipe with an anti-corrosion structure according to claim 3, characterized in that: The outer protective layer (14) is made of PVC material with added ultraviolet absorbers and antioxidants.
7. A PVC pipe with an anti-corrosion structure according to claim 1, characterized in that: The sealing assembly includes a first sealing ring (6), one side of which is fixedly installed with the end face of the second tube (2), and the other end of which is engaged with a groove on the end face of the first tube (1). A second sealing ring (7) is engaged with the inner wall of the first sealing ring (6), and the outer wall of the second sealing ring (7) is in contact with the inner wall of the first tube (1). A third sealing ring (8) is engaged with the outer wall of the first sealing ring (6), and the third sealing ring (8) is fixedly installed with the outer wall of the first tube (1).