Title:
フリークーリングチラー及びその運転方法
Document Type and Number:
Japanese Patent JP7205916
Kind Code:
B2
Abstract:
To implement effective, highly valid and remarkable energy saving effectively utilizing natural energy by performing rational and efficient control processing taking outside air temperature fluctuation, etc., with a seasonal change into consideration.SOLUTION: A first mode in which a liquid temperature To of a cooling liquid L is controlled by a chiller cooling system Ac using a refrigeration cycle 4, and a second mode implementing a second A mode in which a blower fan 6 in a free cooling system Af in which outside air heat exchangers 5p and 5q are air-cooled by blowing of the blower fan 6 is set to a maximum drive frequency fwm and the liquid temperature To is controlled by using the chiller cooling system Ac in an auxiliary manner, or a second B mode in which the chiller cooling system Ac is stopped and the liquid temperature L is controlled by the blower fan 6 are selectable and an outside air temperature Ta and the liquid temperature To are monitored, thereby at least executing the first mode in the case where the outside air temperature Ta is higher than the liquid temperature To, and executing the second mode in the case where the outside air temperature Ta is lower than the liquid temperature To.SELECTED DRAWING: Figure 1
Inventors:
Yuusuke Furuta
Eiji Takamure
Eiji Takamure
Application Number:
JP2020025922A
Publication Date:
January 17, 2023
Filing Date:
February 19, 2020
Export Citation:
Assignee:
Orion Machinery Co., Ltd.
International Classes:
F25D13/00; F25B1/00
Domestic Patent References:
| JP2010145035A | ||||
| JP2013119989A | ||||
| JP2012137271A | ||||
| JP2003329355A | ||||
| JP2013160441A | ||||
| JP2004165A | ||||
| JP2000266447A |
Attorney, Agent or Firm:
Shimoda Shigeru
Patent Attorney Corporation Taiyo International Patent Office
Patent Attorney Corporation Taiyo International Patent Office