External pressure testing device for fiberglass pipes

Abstract

This utility model belongs to the field of external pressure testing technology and discloses a fiberglass pipe external pressure testing device, including a pressure-bearing pipe body, a sealing base, a first sealing cover, a connecting pipe, and a pressurized pipeline joint. All components are made of fiberglass, a material that is lightweight, low-cost, and has excellent corrosion resistance, making it suitable for long-term stable use in environments containing acid, alkali, or highly corrosive media. This significantly improves the durability and service life of the device while reducing maintenance costs. By converting the deformation of the test sample during the external pressure test into the volume of overflowing liquid, the overflowing liquid volume is the compression volume of the pipe wall of the test sample. The volume change curve of the test sample can be recorded by a metering component, thereby enabling a high-precision evaluation of the test sample's resistance to external pressure. This is particularly suitable for deformation analysis and instability determination of thin-walled composite material structures.

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