Carrier insert for accommodating and maintaining the biofilm culture of fluid cleaning structures

Abstract

The invention relates to a carrier insert for accommodating and maintaining the biofilm culture of fluid cleaning structures, which contains a spatial web made of staple fibres using the hosiery method. The characteristic feature of the invention is that the web ( 10 ) has internal textile units ( 11, 12, 13, 14, 15, 16 ) joining each other in intermediate complete nodal points ( 20, 21, 22, 23 ) and situated between the complete nodal points ( 20, 21, 22, 23 ) and external textile ( 17, 18 ) units situated along the edges ( 10 a ) of the web ( 10 ), where in the case of at least a part of the complete nodal points ( 20, 21, 22, 23 ) there is an even number of internal textile units ( 11, 12, 13, 14, 15, 16 ) guided into the given complete nodal point ( 20, 21, 22, 23 ), the internal sides ( 17 a, 18 a ) of the external textile units ( 17, 18 ) situated along the edges ( 10 a ) of the web ( 10 ) are connected to a complete nodal point ( 20, 21, 22, 23 ) each, and the external sides ( 17 b, 18 b ) of the external textile units ( 17, 18 ) are provided with connection points ( 24, 25 ) for joining the structure ( 1 ), and via the connection points ( 24, 25 ) the web ( 10 ) is attached to the structure ( 1 ) in a fixed position.

1 . Carrier insert for accommodating and maintaining the biofilm culture of fluid cleaning structures, which contains a spatial web made of staple fibres using the hosiery method, characterised by that the web ( 10 ) has internal textile units ( 11 ,  12 ,  13 ,  14 ,  15 ,  16 ) joining each other in intermediate complete nodal points ( 20 ,  21 ,  22 ,  23 ) and situated between the complete nodal points ( 20 ,  21 ,  22 ,  23 ), and external textile ( 17 ,  18 ) units situated along the edges ( 10   a ) of the web ( 10 ), where in the case of at least a part of the complete nodal points ( 20 ,  21 ,  22 ,  23 ) there is an even number of internal textile units ( 11 ,  12 ,  13 ,  14 ,  15 ,  16 ) guided into the given complete nodal point ( 20 ,  21 ,  22 ,  23 ), the internal sides ( 17   a ,  18   a ) of the external textile units ( 17 ,  18 ) situated along the edges ( 10   a ) of the web ( 10 ) are connected to a complete nodal point ( 20 ,  21 ,  22 ,  23 ) each, and the external sides ( 17   b ,  18   b ) of the external textile units ( 17 ,  18 ) are provided with connection points ( 24 ,  25 ) for joining the structure ( 1 ), and via the connection points ( 24 ,  25 ) the web ( 10 ) is attached to the structure ( 1 ) in a fixed position. 
     
     
         2 . Carrier insert as in  claim 1 , characterised by that two of the internal textile units ( 11 ,  12 ,  13 ,  14 ,  15 ,  16 ) situated in a given complete nodal point ( 20 ,  21 ,  22 ) are positioned in the same principal plane (S 1 , S 2 , S 3 ), and the given principal plane (S 1 , S 2 , S 3 ) is taken through the given complete nodal point ( 20 ,  21 ,  22 ,  23 ). 
     
     
         3 . Carrier insert as in  claim 1  or  2 , characterised by that at least a part of the textile units ( 11 ,  12 ,  13 ,  14 ,  15 ,  16 ,  17 ,  18 ) are joined to each other in the complete nodal point ( 20 ,  21 ,  22 ,  23 ) with an adhesion and/or cohesion and/or hosiery joint. 
     
     
         4 . Carrier insert as in any of  claims 1 - 3 , characterised by that some of the textile units ( 11 ,  12 ;  13 ,  14 ,  15 ,  16 ;  17 ,  18 ) are made of the same material, and individual groups of such arranged textile units ( 11 ,  12 ;  13 ,  14 ,  15 ,  16 ;  17 ,  18 ) form a main body (F 1 , F 2 ) each. 
     
     
         5 . Carrier insert as in  claim 4 , characterised by that the connection points ( 24 ,  25 ) are situated at the ends (F 1   a , F 1   b , F 2   a , F 2   b ) of the main bodies (F 1 , F 2 ). 
     
     
         6 . Carrier insert as in  claim 4 , characterised by that the connection points ( 24 ,  25 ) are placed at the ends (F 1   a , F 1   b , F 2   a , F 2   b ) of the main bodies (F 1 , F 2 ) and on the free sections between the ends (F 1   a , F 1   b , F 2   a , F 2   b ) of the main bodies (F 1 , F 2 ). 
     
     
         7 . Carrier insert as in any of  claims 1 - 6 , characterised by that the distance (T) between the neighbouring complete nodal points ( 20 ,  21 ,  22 ,  23 ) is between 50-300 mm, favourably between 100-150 mm. 
     
     
         8 . Carrier insert as in any of  claims 1 - 9 , characterised by that at least a part of the textile units ( 11 ,  12 ,  13 ,  14 ,  15 ,  16 ,  17 ,  18 ) contain longitudinal free fibres ( 30 ) and cross fibres ( 40 ) connecting the longitudinal free fibres ( 30 ) to each other. 
     
     
         9 . Carrier insert as in  claim 8 , characterised by that the distance between two neighbouring longitudinal free fibres ( 30 ) is maximum 50 mm. 
     
     
         10 . Carrier insert as in  claim 8  or  9 , characterised by that the distance between two neighbouring cross fibres ( 40 ) is maximum 50 mm. 
     
     
         11 . Carrier insert as in any of  claims 7 - 10 , characterised by that the cross-section of the longitudinal free fibre ( 30 ) is at least 0.0001 mm 2 .