Water-carrying plugging additive for FRP pipelines and method for plugging leakage using the plugging additive

Abstract

The invention discloses an additive for stopping leakage of a fiber reinforced plastic pipe under water and a method for stopping leakage through the same. By means of the additive and the method, leakage can be stopped under water when the fiber reinforced plastic pipe suffers abnormal damage, particularly, limitations from seasons, weather, working sites and space can be overcome, leakage of the fiber reinforced plastic pipe can be rapidly and efficiently stopped on the premise of guaranteeing normal operation and use of the damaged pipe, and the phenomena that the labor cost is high and fluid materials in the pipe are wasted in a traditional leakage stopping method are reduced.

Description

technical field [0001] The invention belongs to the technical field of maintenance methods for FRP pipelines, and in particular relates to a water-filled leak-stopping additive for FRP pipelines and a leak-stopping method using the leak-stopping additive. Background technique [0002] In the known technology, FRP pipes have good heat resistance, frost resistance, wear resistance and pressure resistance, and have many advantages such as light weight, high strength, convenient transportation and installation, and low maintenance costs. They have been widely used in the field of engineering construction, but in the process of use In the construction of other underground projects and structures, the artificial or mechanical damage to the buried FRP pipes is often caused. The traditional leakage repair method generally adopts manual winding paste of glass fiber and polyester resin in the absence of water and other fluids after the fluid in the FRP pipe is discharged. The polyeste...

AI Technical Summary

Problems solved by technology

However, the disadvantages of the waterless artificial pasting method are obvious: 1. Long water stop time, the larger the pipe diameter, the longer the water stop time, about 1-3 days

2. It is difficult to discharge the fluid in the pipeline, and some places have no place to discharge due to environmental and space restrictions. Even if it can be discharged, it will cause waste of fluid resources in the pipeline

3. During the discharge process, the pipeline system is basically out of service, which brings a great deal of loss and inconvenience to production and life