This utility model discloses a portable device for measuring the permeability parameters of a
geomembrane. It includes a measuring tank with two symmetrically connected support pipes at the top. Each support
pipe has a water tank fixedly connected to its top. The bottoms of both
water tanks are connected to the measuring tank via inlet pipes. One side of the top of each water tank is connected via an inlet
pipe, with an inlet located in the middle of the inlet
pipe. A glue injection chamber is located on the outer side of the measuring tank. This utility model, through the connection between the
evaporation measuring tank and the measuring tank, can simultaneously and accurately measure the
evaporation of water during measurement, providing richer data dimensions for a comprehensive evaluation of the
geomembrane performance. Furthermore, the glue injection chamber, measuring tank, and
evaporation measuring tank are all made of transparent material and have graduations, allowing operators to clearly and intuitively observe the amount of
sealant injected and the changes in
water level within the measuring tank and evaporation measuring tank, quickly obtaining accurate data and providing a more scientific and accurate basis for a deeper and more comprehensive understanding of the
geomembrane's permeability performance.