Research on the airtight helium leak detection test device of fully-wrapped carbon fiber reinforced cylinders with a plastic liner for the on-board storage of compressed hydrogen

Abstract

This article aims at the discussion on the airtight helium leak detection test of CHG type IV plastic inner composite gas cylinder. An equipment for test the airtight helium leak detection test was built. And the properties of the airtight helium leak detection of a CHG type IV plastic inner composite gas cylinder was carried out. The results show that at the beginning of the test, the permeability fluctuates while after about 600 min, the test results tend to be stable.