摘要:
A refrigeration cycle apparatus 10 includes refrigerant circuits 11a and 11b in which a high pressure shell compressor 12, an outdoor heat exchanger 14, an expansion valve 15, and an indoor heat exchanger 16 are connected; a mixed refrigerant containing 1,1,2-trifluoroethylene and a refrigerant other than 1,1,2-trifluoroethylene and circulating through the refrigerant circuits 11a and 11b; and a refrigerating machine oil 60 enclosed in the refrigerant circuits 11a and 11b and adjusted such that 1,1,2-trifluoroethylene will be more soluble therein than the other refrigerant is.
摘要:
There are provided a composition for a heat cycle system containing a working medium for heat cycle that has a low global warming potential and high stability, which can be used as a substitute for HFC-134a and HFC-245fa, and a heat cycle system using this composition. The composition for a heat cycle system contains: a working medium for heat cycle containing 1-chloro-2,3,3,3-tetrafluoropropene; and a stabilizer suppressing deterioration of the working medium for heat cycle such as an oxidation resistance improver, a heat resistance improver, or a metal deactivator, and the heat cycle system uses this composition for a heat cycle system.
摘要:
The refrigerator oil according to the present invention includes a base oil including an oxygen-containing organic compound and a phosphorus-based compound represented by the following general formula (1). In the formula (1), n represents an integer of 1 to 10; R 1 to R 8 each independently represent a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; and Ar represents a divalent hydrocarbon group having 2 to 20 carbon atoms.
摘要:
A refrigeration cycle apparatus 10 includes refrigerant circuits 11a and 11b in which a high pressure shell compressor 12, an outdoor heat exchanger 14, an expansion valve 15, and an indoor heat exchanger 16 are connected; a mixed refrigerant containing 1,1,2-trifluoroethylene and a refrigerant other than 1,1,2-trifluoroethylene and circulating through the refrigerant circuits 11a and 11b; and a refrigerating machine oil 60 enclosed in the refrigerant circuits 11a and 11b and adjusted such that 1,1,2-trifluoroethylene will be more soluble therein than the other refrigerant is.
摘要:
A compressor uses a refrigerant containing R1123 (1,1,2-trifluoroethylene) as a working fluid, and uses a polyvinyl ether oil as a compressor lubricating oil. In addition, a fixed scroll (12) and a revolving scroll (13) each having a spiral lap rising from an end plate, and a compression chamber (15) which is formed by meshing the fixed scroll (12) and the revolving scroll (13), are provided. In addition, a discharge hole (18) which is provided at a center position of the end plate of the fixed scroll (12), and is open to a discharge chamber (31), a bypass hole (68) which is provided in the end plate of the fixed scroll (12), and communicates with the compression chamber (15) and the discharge chamber (31) at a timing different from a timing at which the compression chamber (15) communicates with the discharge hole (18), and a check valve which is provided in the bypass hole (68), and allows a flow from the compression chamber (15) side to the discharge chamber (31) side.
摘要:
A refrigeration cycle is filled with a single component refrigerant of a substance having a property of undergoing disproportionation reaction or a mixed refrigerant containing a substance having a property of undergoing disproportionation reaction and a refrigerating machine oil miscible with the refrigerant.
摘要:
The working fluid composition for a refrigerating machine of the present invention comprises a refrigerant comprising a first refrigerant component and a second refrigerant component, and having a global warming potential (GWP) of 500 or less, wherein the first refrigerant component is at least one selected from difluoromethane and tetrafluoropropene, and the second refrigerant component is at least one selected from carbon dioxide and a hydrocarbon having 3 to 4 carbon atoms; and a refrigerating machine oil comprising at least one selected from a polyol ester, a polyvinyl ether and a polyalkylene glycol compound as a base oil, wherein a carbon/oxygen molar ratio of the base oil is 2.5 or more and 5.8 or less.
摘要:
The present invention is able to provide a lubricating oil composition for compression refrigerating machine having excellent thermal/chemical stability even when used for a compression refrigerating machine using a saturated fluorinated hydrocarbon refrigerant having a low carbon number and a low global warming potential, by using a refrigerant containing a saturated fluorinated hydrocarbon having from 1 to 3 carbon atoms, which uses, as a base oil, an oxygen-containing organic compound composed of at least one member selected from a polyoxyalkylene glycol, a polyvinyl ether, a copolymer of a poly(oxy)alkylene glycol and a polyvinyl ether, a copolymer of a poly(oxy)alkylene glycol monoether and a polyvinyl ether, and a polyol ester, each having a hydroxyl value of not more than 15 mgKOH/g.