1results about How to "Avoid laying" patented technology

The utility model relates to a kind of grain barn inner circulation uniform temperature ventilation system, including grain barn and the center pipe being set in the middle part of grain barn, further including ventilation pipe, upper air collecting chamber, lower air collecting chamber, ventilation ground groove, center ventilator and uniform temperature fan;Ventilation pipe is fixedly arranged on the lateral wall of center pipe;Upper air collecting chamber is communicated with the upper end of ventilation pipe;The air supply pipeline of center ventilator and uniform temperature fan is all communicated into upper air collecting chamber, center ventilator and uniform temperature fan extract air from the top inside grain barn, then output into upper air collecting chamber, lower air collecting chamber is communicated with the lower end of ventilation pipe;Ventilation ground groove is opened in the bottom of grain barn, and ventilation ground groove is communicated with lower air collecting chamber, so that uniform temperature airflow can be vertically downward along ventilation pipe and reach lower air collecting chamber and ventilation ground groove located in bottom, uniform temperature ventilation is carried out to grain from bottom to top, form inner circulation located in grain barn, avoid heat loss and energy efficiency reduction caused by long-distance transportation of traditional external air pipe, improve economy and environmental protection.