Module for extracting fluid from a hollow vessel

摘要

A module to be arranged within a hollow vessel for extracting fluid from the hollow vessel is provided, the module comprising a pumping device (1), at least one filtering device (2) and at least one extension arm (3,4) which has means enabling connection with the outside of the module. Also provided are a process for fixing such a module inside of a hollow vessel, a hollow vessel comprising such a module and a method for extracting fluid from a hollow vessel wherein the fluid is extracted by such a module.