Title:
冷媒量の決定方法および冷媒量の決定装置
Document Type and Number:
Japanese Patent JP6699746
Kind Code:
B2
Abstract:
In a refrigeration apparatus including a refrigerant circuit in which a refrigerant in a gas-liquid two-phase state flows through a liquid-side connection pipe, a refrigerant-amount determining method and a refrigerant-amount determining device capable of grasping an appropriate refrigerant charging amount corresponding to the length of the connection pipe is provided. Provided is a refrigerant-amount determining method for a refrigerant to be charged to a refrigeration apparatus (1) including a refrigerant circuit (10) in which a compressor (21), an outdoor heat exchanger (22) that functions as a condenser, an outdoor expansion valve (28), indoor heat exchangers (41a, 41b) that function as evaporators, a liquid-side connection pipe (5) that feeds the refrigerant, which has passed through the outdoor heat exchanger (22) and then has been decompressed by the outdoor expansion valve (28), to each of the indoor heat exchangers (41a, 41b), and a gas-side connection pipe (6) that feeds the refrigerant, which has passed through each of the indoor heat exchangers (41a, 41b), to a suction side of the compressor (21), are connected to one another. The method determines a refrigerant amount of the refrigerant to be charged to the refrigerant circuit (10) such that a refrigerant amount per unit length of the liquid-side connection pipe (5) increases as a length of the liquid-side connection pipe (5) is larger.
Inventors:
Takuro Yamada
Yusuke Nakagawa
Masahiro Honda
Yusuke Oka
Yuki Sasayama
Yusuke Nakagawa
Masahiro Honda
Yusuke Oka
Yuki Sasayama
Application Number:
JP2018542927A
Publication Date:
May 27, 2020
Filing Date:
September 29, 2017
Export Citation:
Assignee:
Daikin Industries, Ltd.
International Classes:
F25B45/00; F25B5/02; F25B49/00; F25B49/02
Domestic Patent References:
| JP11063745A | ||||
| JP2006183953A |
Foreign References:
| WO2015063837A1 | ||||
| WO2011111114A1 | ||||
| WO2016051606A1 | ||||
| WO2016110974A1 |
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation