Cleaning device for membranes

摘要

A backpulse device for a crossflow filtration system comprising a permeate chamber (01), a permeate inlet (07), a permeate outlet (13), a piston (12) having a first position and a second position and being capable of movement between said first position and said second position, said first position being such that said piston is not placed between said permeate inlet and said permeate outlet and that it permits fluid flow between said permeate inlet and said permeate outlet, said second position being such that said piston is placed between said permeate inlet and said permeate outlet and that it substantially blocks fluid flow between said permeate inlet and said permeate outlet, characterised in that between said permeate outlet and said piston there is a cylinder (02) comprising several holes (03), evenly distributed over the cylinder surface and said holes connecting said permeate chamber and said permeate outlet. <IMAGE>