FIELD: agriculture.
SUBSTANCE: invention relates to fish farming and can be used for directing movement of fish mainly to guard the fish aggregating areas or fish paths against fish getting into water inlets. Complex fish protecting device consists of floating or stationary fish redirecting trap. Fish redirecting trap represents fish redirecting tray with a horizontal flange, vertical blind rear wall and vertical front permeable wall consisting of separate plate elements with water intake slits formed between them, through these flow passes in the fish redirecting tray. Separate plate elements of the vertical front permeable wall of the fish redirecting tray are so arranged that the initial point of the next plate element is displaced from the end point of the previous plate element with transverse spacing h of displacement of the plates along the width of the tray m and is either on the same line or is shifted from the end point of the previous plate element on longitudinal pitch l of displacement of plates along the length of the tray in the direction of the previous plate element. Transverse pitch h of displacement of plates along the width of the tray and longitudinal pitch l of displacement of plates along the tray length between each two separate previous and subsequent plate elements in the device can vary and differ from each other. Length, height p and thickness k of each separate plate element in one device can also vary. Length of fish redirecting tray can vary, width m and height n of fish redirecting tray can vary over the entire length of the fish redirecting tray. Angle of α trap arranged at the access flow can vary from 0° to 90° and as a result, a flow is formed in the fish redirecting tray which move fish from the water intake into a safe zone of the water source.
EFFECT: higher efficiency of the device, high rate of fish transportation using a flow in the fish redirecting tray and reduced probability of garbage getting in the fish redirecting tray.
5 cl, 12 dwg
