FIELD: ventilation.
SUBSTANCE: deflector-fan comprises the main nozzle with a diamond-shaped expansion, inside of which there is a turbine driven by a reversible motor. The main nozzle has a valve that closes intake air supply and sends it to a side branch made as capable of intake air filtration prior to its supply into a greenhouse. Under low speeds of external air motion, the turbine rotates under the action of air flow released from the greenhouse. In case of churly blasts the motor starts to rotate the turbine with permanent speed, which provides for improved evenness of air flow released from the greenhouse. When necessary to stop the experiment or in case of emergencies the motor is started to rotate the turbine in reverse direction, and the intake air passing through filters is supplied into the greenhouse.
EFFECT: deflector-fan is designed for experimental greenhouses with high intensity of plants growth.
3 dwg
