Pressure-bearing drainage pipeline and production equipment and preparation method thereof

By introducing continuous fiber belt pressure-resistant layer and long fiber reinforcement between the inner and outer layers of the drain pipe, the shortcomings of existing drain pipes in terms of external pressure resistance, rigidity and stability are solved, and higher compressive resistance and material savings are achieved.

CN119712969AInactive Publication Date: 2025-03-28SHANGHAI YINGTAI PLASTIC CO LTD
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Patent Information

Application Number
CN202411886552.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-03-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing drainage pipes have shortcomings in terms of resistance to external pressure, rigidity and stability, especially when large diameter drainage pipes are used, the material is used too much, the pipe is weighted, and it is not resistant to internal pressure, negative pressure and axial stretching.

Method used

The continuous fiber belt pressure-resistant layer structure is adopted, including a plastic inner layer, a continuous fiber belt layer and a plastic outer layer, and the long fiber reinforcement and plastic protective layer are wound on the outer layer to improve the compressive resistance and stability of the pipe through fused connection.

Benefits of technology

It significantly improves the resistance to internal pressure, negative pressure, impact and tensile strength of the pipeline, reduces the use of plastic materials, improves the rigidity and stability of the pipeline, and is suitable for use in 0.4MPa pressure pipes.

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Abstract

The invention provides a pressure-bearing drainage pipeline and production equipment and a preparation method thereof, the pressure-bearing drainage pipeline comprises a continuous fiber band pressure-resistant layer connected to the surface of the pipeline, the continuous fiber band pressure-resistant layer comprises a plastic inner layer, a continuous fiber band layer and a plastic outer layer which are sequentially connected from inside to outside, and the plastic outer layer is externally connected with a wound long fiber reinforcing part. After the continuous fiber belt layer resistant to internal pressure, negative pressure, impact and stretching is wrapped and fused between the inner-layer pipe and the outer-layer pipe, the internal pressure, negative pressure, impact and tensile strength of the inner wall of the pipeline is greatly improved. The long-fiber reinforced part made of the high-rigidity long-fiber material is adopted to replace a plastic reinforced body, so that the rigidity of the pipeline is greatly improved, the rebound force is reduced, the stability is promoted, and meanwhile, the use amount of the plastic material is greatly reduced and saved.
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