| 摘要 |
<p>The present invention relates to a fish pass, particularly for torrent and submontane watercourses, being formed by a two-chamber tank (1) provided under the bottom level (H1) with a closable inlet hole (110) and above the upper level (H5) with closable outlet hole (111). In the direction of water longitudinal flow, said tank (1) is separated by a partition wall (101) to an operating chamber (102) and a control chamber (103). In addition to said inlet hole (110), and said outlet hole (111), said operating chamber (102) is further provided with at least one drainpipe (3). Said drainpipe (3) outlet is covered by a slot (4) and is formed above upper edge of the inlet hole (110). Said operating chamber (102) is further provided with a by-pass pipe (6) leading from outside of the tank (1) underneath upper level (H5) and having a first branch being provided with a first control valve (61) and leading into the operating chamber (102), and a second branch (64) provided with a second control valve (63) and leading into bottom section of the control chamber (103). In the control chamber (103), there are disposed a main float (9) intended for operating an outlet closing member (5) of the outlet hole (111), a control float (23) intended for controlling inlet closing member (2) of the inlet hole (110), and auxiliary float (13) intended for controlling discharge through a dewatering conduit (7).</p> |
