BUOYANCY PRODUCING SYSTEM FOR INCREASING CHIMNEY EFFECT

摘要

PURPOSE: A buoyancy producing system is provided, in which a heat pipe is employed to deliver the heat from the exhaust pipe of kitchen toward the exhaust pipe of lavatory room, to thereby increase buoyancy in the air exhaust of lavatory room and improve chimney effect. CONSTITUTION: A buoyancy producing system for delivering heat from a kitchen exhaust pipe(20) to a lavatory room exhaust pipe(30), includes a heat pipe(40) which delivers heat from a heat source point to the other heat source point by utilizing evaporation action of chemicals having latent heat of vaporization. A portion of the heat pipe is wound several turns at the lower outer periphery of the kitchen exhaust pipe, and the other portion of the heat pipe is wound several turns at the upper outer periphery of the lavatory room exhaust pipe. When the temperature of the kitchen exhaust pipe rises due to food cooking, the heat pipe arranged at the kitchen exhaust pipe absorbs the heat and thus-absorbed heat is transferred to the lavatory room exhaust pipe through the heat pipe. Thus, buoyancy is produced in the exhaust operation of the lavatory room exhaust pipe, to thereby increase chimney effect.