Control device for filters in at least two partial fluid streams

A control device for filtering at least two partial fluid streams, comprising:

• a common fluid supply duct for supplying said fluid streams;
• a common fluid removal duct for removing the filtered fluid streams;
• at least two partial fluid ducts, positioned between the common fluid supply and removal ducts, each of said at least two partial fluid ducts including;
• a corresponding filtering device in each partial fluid duct for filtering a respective partial fluid stream in the corresponding partial fluid duct,
• a single corresponding valve device for each of said partial fluid ducts for controlling the flow of the respective partial fluid stream in each of said partial fluid ducts via a corresponding blocking element, wherein the number of valve devices is equal to the number of said partial fluid ducts, each said blocking element being located in the flow of the respective partial fluid stream of the corresponding partial fluid duct and having a first open position for directing said respective partial fluid stream to flow through the corresponding filtering device, a second blocking position for blocking said respective partial fluid stream from said corresponding filtering device and for redirecting said respective partial fluid stream to one of the at least one other partial fluid ducts for filtering in its corresponding filtering device, while the filtering device in said corresponding partial duct is washed of accumulated particles by a reversed flow of said partial fluid stream through said filtering device, and a third position for directing said respective partial fluid stream outside said control device, and
• a corresponding stop valve positioned in proximity to each said corresponding filtering device, having a first open position and a second blocking position, each said stop valve being in said first open position, when the corresponding blocking element is in its second blocking position, for releasing said particles washed from the corresponding filtering device from said device, and each said stop valve being in said second blocking position when said corresponding blocking element is in its first open position.