一种核电厂用轴向中空结构HDPE双层管及其成型模具
By incorporating annular array ribs and axially penetrating monitoring cavities into axially hollow HDPE double-layer pipes used in nuclear power plants, and combining this with fiber optic sensors, the leakage risk and insufficient pressure resistance of nuclear power plant pipelines under radiation environments have been addressed, achieving efficient leakage monitoring and improved molding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANHUI RUIYUAN PIPELINE CO LTD
- Filing Date
- 2026-04-17
- Publication Date
- 2026-07-17
AI Technical Summary
The existing seawater circulation pipeline system of nuclear power plants is prone to aging due to long-distance laying and radiation environment, and has problems such as high leakage risk, insufficient pressure resistance and low monitoring integration, which affect environmental and health safety.
Design an axially hollow HDPE double-layer pipe for nuclear power plants. The inner and outer pipes are provided with annular array ribs and an axially penetrating monitoring cavity. Equipped with fiber optic sensors, it is integrally molded to improve pressure and bending resistance and realize real-time leakage monitoring.
It effectively improves the circumferential pressure resistance and axial bending resistance of pipelines, realizes real-time and accurate early warning and location of leaks, avoids environmental risks caused by leaks, and improves production efficiency and molding quality.
Smart Images

Figure CN122034276B_ABST