SNOW PREVENTING METHOD AND ITS APPARATUS IN OUTDOOR AIR INTAKE DEVICE

摘要

PURPOSE:To prevent snow from entering and to discharge arrested snow after melting it, by covering an open air intake opening with a plate of a permeable porous material, and heating arrested snow by waste heat from an air conditioner with a heat transfer element consisting of a heat pipe. CONSTITUTION:A porous plate 7 having a permeability is installed to cover an opening 1a provided on an external wall 1. It is preferable that the permeable porous plate 7 is made in such a manner that stainless steel wool is packed into a frame to form a plate-like shape. A heat pipe 8 is arranged so as to closely contact with the permeable porous plate 7. An evaporation part 8b of the heat pipe 8 is heated by the exhaust air from an air conditioner, and latent heat is released from a condensation part 8a installed in the open air flow. Thereby, snow that tends to enter with open air sucked through the open ing on the wall 1 is arrested by the permeable porous plate. The arrested snow is melted by the waste heat from the air conditioner with a heat transfer ele ment consisting of the heat pipe, and discharged outdoor through a drip 9.