公开(公告)号：US11226130B2

公开(公告)日：2022-01-18

申请号：US16477935

申请日：2018-01-09

Applicant: NEC CORPORATION

Inventor： Koichi Todoroki ,  Arihiro Matsunaga ,  Masanori Sato ,  Mizuki Wada ,  Minoru Yoshikawa

IPC: F24F11/84 ,  F28F27/00 ,  F25B41/20 ,  F25B41/31

Abstract: A valve control device includes a receiving unit, an opening degree control unit, and a fixing control unit. The receiving unit receives information concerning the measured temperature of a fluid to be cooled that is cooled by a vaporizer in a refrigerant circulation path that is equipped with the vaporizer and a condenser. The opening degree control unit variably controls the opening degree of a valve that controls the flow rate of the refrigerant that circulates through the circulation path in accordance with the difference between the measured temperature and a target temperature provided in advance. The fixing control unit fixes the opening degree of the valve with priority over variable control performed by the opening degree control unit in the case where a fixing condition based on the difference between the measured temperature and the target temperature and a valve opening degree variation condition is satisfied.