| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compact direct contact type heat exchanger of low pressure loss. <P>SOLUTION: The direct contact type heat exchanger 1 includes a casing 2 including: a water inlet 5 through which humidifying water is supplied from a top part thereof; a water outlet 6 through which the humidifying water is discharged from a bottom part thereof; a gas inlet 3 through which the gas flows in from a side face thereof, and a gas outlet 4 through which the gas flows out from a position higher than the gas inlet 3 of the side face. A spiral plate 40 has a spiral part 41 disposed to be in contact with an inner periphery of the casing 2 and formed from a bottom part toward a top part of the casing 2 and from a first lap to an m-th lap (m is a number larger than 1) in sequence and spirally so that a gas flow passage and a water flow passage are formed. In the gas flow passage, the gas ascends while swirling from the gas inlet 3 and flows out of the gas outlet 4. The water flow passage is formed in a space where the gas flow passage is formed, and is formed in a direction opposite to the gas flow passage. In the water flow passage, the humidifying water descends while swirling from the water inlet 5 and is discharged from the water outlet 6. <P>COPYRIGHT: (C)2013,JPO&INPIT |
