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1. (WO2018179204) COOLING SYSTEM AND REFRIGERANT CONTROL METHOD FOR COOLING SYSTEM

Pub. No.:    WO/2018/179204    International Application No.:    PCT/JP2017/013210
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 31 01:59:59 CEST 2017
IPC: F25B 1/00
Applicants: NEC CORPORATION
日本電気株式会社
Inventors: MATSUNAGA Arihiro
松永 有仁
TODOROKI Koichi
轟 孔一
SAKUMA Hisato
佐久間 寿人
YOSHIKAWA Minoru
吉川 実
Title: COOLING SYSTEM AND REFRIGERANT CONTROL METHOD FOR COOLING SYSTEM
Abstract:
A cooling system is provided with: an evaporator (1) that absorbs heat by way of vaporization of a liquid-phase refrigerant R; a condenser (2) that dissipates heat by way of liquefaction of a gas-phase refrigerant (R); a resistance body (8) that is provided in a pipeline (3) from the evaporator (1) toward the condenser (2) and that applies a resistance to the refrigerant (R); state detection sensors (9) that are provided in the pipeline (3) in positions on the upstream side and the downstream side of the resistance body (8) and that detect the state of the refrigerant (R) flowing at each side of the pipeline (3); and a flow rate control means (C) that detects the presence of droplets in the refrigerant (R) flowing in the pipeline (3) on the basis of the difference in the detected values from the state detection sensors (9) detected on the upstream side and the downstream side of the resistance body (8) and that controls the flow rate of the refrigerant (R) on the basis of the detection results.