| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a cooling system which prevents decline in cooling capacity in an evaporator even in winter having low outside air temperature. <P>SOLUTION: In a cooling tower system circulating a refrigerant between the evaporator and a cooling tower 22, the cooling tower 22 includes: a cooling tower body 30 having an intake port 30A of outside air and exhaust port 30B formed therein; a heat exchange coil 28 provided within the cooling tower body 30 and having an inlet/outlet connected to the evaporator; a sprinkler 34 sprinkling water on the heat exchange coil 28; an air blower 36 sending the outside air taken in from the intake port 30A to the heat exchange coil 28 and discharging the outside air from the exhaust port 30B; a circulation duct 38 returning part of discharged outside air discharged from the exhaust port 30B to a portion in the vicinity of the intake port 30A and mixing the discharged outside air with taken-in outside air from the intake prot 30A; a damper device 40 controlling the air quantity of the discharged outside air made to flow in the circulation duct 38; and a control mechanism 42 controlling the damper device 40 so that condensation pressure of refrigerant gas condensed by the heat exchange coil 28 becomes a predetermined pressure. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
