Patent ID: 8474082

Claim:
A system comprising: an installation to be cleaned connected at an inlet to a fluid feed pipe fed with fluid and at an outlet to a fluid evacuation pipe, a device for cleaning the installation by causing to flow in the installation cleaning bodies conveyed by flowing fluid, the cleaning device including on an inlet pipe filter means for filtering the fluid and in an evacuation pipe separator means for collecting the cleaning bodies, wherein the separator means and the filter means are static and comprise separate filters, the separator means including a filter member, the device for cleaning including a recovery circuit for recovering the cleaning bodies circulating in the evacuation pipe and a reinjection circuit for reinjecting recovered cleaning bodies into the inlet pipe, the two circuits having in common the filter member and being used alternately by actuating a set of controlled valves present in portions of the circuits that do not convey the cleaning bodies in order to cause the fluid to flow either in the recovery circuit to collect in the filter member the cleaning bodies coming from the evacuation pipe or in the reinjection circuit to drive the cleaning bodies collected in the filter member toward the inlet pipe.