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 water intake case/pipe, flow generator installed inside and hiving nozzles and ejecting and pressure nozzle that is located coaxially with nozzles of the flow generator. Ejecting and pressure nozzle has a mixing chamber in the shape of a quadrangular prism to mix ejected liquid coming from the water intake case/pipe with pressure liquid coming from the nozzles of the flow generator and flat jet forming chamber made in the form of a parallelepiped. Nozzles of the flow generator are installed in one row or several rows. Number of nozzles in each row and the distance between two separate nozzles in each row can vary and be different within one device. Supply of water from the water source into the water intake case/pipe is carried out via one or more water intake pipes, and supply of water into the flow generator nozzles is performed from water intake case/pipe or directly from the water source via one or several separate water intake pipes. Water intake into water intake case/pipe and flow generator is performed from the watersource/part of the water source in which there is no fish, or from the water source/part of the source in which there is fish, and a mandatory fish removing device on the inlet pipe.
EFFECT: technical result consists in improvement of efficiency of the device and reduced probability of fish and garbage getting into water inlets.
1 cl, 12 dwg
