公开(公告)号：US11898529B2

公开(公告)日：2024-02-13

申请号：US16759889

申请日：2018-11-06

Applicant: FASSELAND MEKANISKE VERKSTED AS

Inventor： Johan Arnt Fasseland

IPC: F03B11/08 ,  B01D29/44 ,  B01D29/60 ,  B01D35/18

CPC classification number: F03B11/08 ,  B01D29/445 ,  B01D29/608 ,  B01D35/18

Abstract: The present invention relates to an inlet screen adapted to be arranged at the water inlet (8) of a hydropower plant and comprises a plurality of elongated bars (20), said bars (20) being separated by a distance holding means, each elongated bar (20) having in its elongation a proximal portion and a distal portion, and an upstream region and a downstream region, said upstream and downstream regions being at an angle in relation to said proximal and distal portions, at least one of said bars (20) defining a space (36; 36a) extending along at least a portion of the elongation of said bar (20), said bar (20) being provided with an electric heating means (31). In accordance with the invention, said elongated bar has an elongated intermediate portion (38a), said space (36; 36a) being defined in either of the upstream region (35a) and the downstream region (35b), said intermediate portion (38a) extending along the elongation of the bar (20) between the upstream region (35a) and the downstream region (35b), said electric heating means (31) comprising at least one electric heating member (37) being introduced into said space (36; 36a).