Equipment feeding polymers into a fluid flow

Abstract

The invention relates to equipment ( 10 ) feeding polymers into a fluid flow which is guided within a pipeline ( 20 ) and comprising a control ( 40 ) which may be hooked up to a polymer supply line ( 42 ), further comprising several feed conduits ( 70 ) which are configured between the said control and said pipeline and move the polymers from the control ( 40 ) to the pipeline ( 20 ). The control ( 40 ) of the equipment ( 10 ) furthermore includes a valve system ( 50 ) designed in a manner that a defined number of feed conduits ( 70 ) can be opened or closed. In addition, one static mixer ( 80, 81 ) is configured at least in segment(s) in each feed conduit ( 70 ). This equipment makes it possible to feed polymers, in particular polymers in aqueous solution and of high molecular weights, at a predetermined pressure and at defined rates into a fluid flow without thereby destroying the molecular chains of said polymers.

1 . Equipment ( 10 ) feeding polymers in a fluid flow guided in a pipeline ( 20 ),
 having a control ( 40 ) connected to a supply line ( 42 ) for the polymers,   with several feed conduits ( 70 ) which are configured between the control ( 40 ) and the pipeline ( 20 ) and which move the polymers from the control ( 40 ) to the pipeline ( 20 ),   the control ( 40 ) comprising a valve system ( 50 ) designed to open or close a defined number of feed conduits ( 70 ), and   a static mixer ( 80 ,  81 ) being configured at least in one or more segments of each feed conduit ( 70 ).   
     
     
         2 . Equipment as claimed in  claim 1 , characterized in that the lengths of the static mixers ( 80 ,  81 ) within the feed conduits ( 70 ) are different. 
     
     
         3 . Equipment as claimed in  claim 1 , characterized in that the number and/or the configuration of the mixing elements varies between the static mixers ( 80 ,  81 ) in the feed conduits ( 70 ) and/or within a static mixer. 
     
     
         4 . Equipment as claimed in  claim 1 , characterized in that the diameters of the feed conduits ( 70 ) are different. 
     
     
         5 . Equipment as claimed in  claim 1 , characterized in that each feed conduit ( 70 ) issues into a feed lance ( 30 ) which terminates into the pipeline ( 20 ). 
     
     
         6 . Equipment as claimed in  claim 1 , characterized in that each feed conduit ( 70 ) issues directly into the pipeline ( 20 ). 
     
     
         7 . Equipment as claimed in  claim 5 , characterized in that the feed conduits ( 70 ) penetrate the pipeline ( 20 ) to different depths. 
     
     
         8 . Equipment as claimed in  claim 1 , characterized in that the valve system ( 50 ) comprises an adjustment cylinder ( 51 ) fitted with control apertures ( 52 ) opening the feed conduits ( 70 ). 
     
     
         9 . Equipment as claimed in  claim 8 , characterized in that one feed conduit ( 70 ) is associated to each control aperture ( 52 ). 
     
     
         10 . Equipment as claimed in  claim 8 , characterized in that the dimensions of the control apertures ( 52 ) are different among apertures. 
     
     
         11 . Equipment as claimed in  claim 9 , characterized in that the control apertures ( 52 ) are oblong holes. 
     
     
         12 . Equipment as claimed in  claim 8 , characterized in that the adjustment cylinder ( 51 ) may be driven along the longitudinal axis (A) of the control ( 40 ). 
     
     
         13 . Equipment as claimed in  claim 8 , characterized in that the adjustment cylinder ( 51 ) is supported in a manner to allow rotation about the longitudinal axis (A) of the control ( 40 ).