HEAT SOURCE MACHINE, OPERATION METHOD THEREFOR, AND REFRIGERATION OIL FOR HEAT SOURCE MACHINE

WIPO Patent Application WO/2023/136068

A1

Provided are a heat source machine, as well as an operation method therefore, which employ a prescribed means and use a refrigerator oil that can suppress deterioration of the refrigerator oil and a reduction in viscosity occurring when a refrigerant dissolves in the refrigerator oil. In the disclosed heat source machine (10) a refrigerant circulation circuit for circulating a refrigerant is configured by connecting a compressor (11), a condenser (12), an expansion valve (13), and an evaporator (14) by means of main piping (L1 to L8), wherein the refrigerant circulation circuit is filled with HFO-1336mzz (Z) as the refrigerant, a refrigerator oil supply unit (15) for supplying refrigerator oil to the compressor (11) is provided, the refrigerator oil supply unit (15) includes a storage unit (15a) in which the refrigerator oil is stored, the refrigerator oil includes an ester-based base oil having a kinematic viscosity at 40°C of 100 mm2/s to 180 mm2/s, and 0.1 mass% to 6 mass% of an epoxy-based acid scavenger with respect to the total mass of the refrigerator oil, and the mechanical design temperature is 130°C to 225°C.

YUKI HIROYUKI (JP)
HORAGUCHI NORIHISA (JP)
WAJIMA KAZUKI (JP)
SUEMITSU RYOSUKE (JP)
SHONO YOHEI (JP)

PCT/JP2022/047099

July 20, 2023

December 21, 2022

Click for automatic bibliography generation  

MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD (JP)
ENEOS CORP (JP)

F25B1/00; C10M105/34; C10M129/18; C10N30/08; C10N40/30

WO2016158822A1	2016-10-06
WO2018207709A1	2018-11-15
WO2019074108A1	2019-04-18

FUJITA, Takaharu (JP)

View/Download PDF      PDF Help

Previous Patent: POWER SUPPLY SYSTEM, HEATING CONTROL METHOD, AND HEATING CONTROL PROGRAM

Next Patent: RAMAN MICROSCOPE AND METHOD FOR ADJUSTING SAME