| 摘要 |
The present invention relates to an air circulator for a plastic greenhouse, and, more specifically, to an air circulator for a plastic greenhouse, which forces the warm air in the upper space to move to the lower space by using a fan device so as to warm the lower space where crops grow, and to efficiently use the heating energy, considering that the warm air supplied to a plastic greenhouse by a heating system in winter is lighter as the density is relatively lower than the cold air in the plastic greenhouse, and the ascended warm air does not come down and stays in the upper space of the plastic greenhouse. The air circulator for a plastic greenhouse circulates the whole air in the plastic greenhouse with convection by using a density difference between the upper space air and the lower space air, to activate the growth of crops. |
