COMPOSITION FOR HEAT CYCLE SYSTEM, AND HEAT CYCLE SYSTEM

• US 20190322916A1
• Filed: 06/05/2019
• Published: 10/24/2019
• Est. Priority Date: 02/20/2014
• Status: Active Grant

• Current Assignee: AGC, Inc.
• Original Assignee: AGC, Inc.
• Inventors: Fukushima, Masato, Mitsuoka, Hiroaki, Tasaka, Mai
• Granted Patent: US 10,851,276 B2
• Time in Patent Office: Days
• CPC Class Codes: C09K 2205/122 Halogenated hydrocarbons
• CPC Class Codes: C09K 2205/126 Unsaturated fluorinated hydrocarbons
• CPC Class Codes: C09K 2205/22 All components of a mixture being fluoro compounds
• CPC Class Codes: C09K 5/045 containing only fluorine as halogen
• CPC Class Codes: C10M 101/02 Petroleum fractions
• CPC Class Codes: C10M 105/00 Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
• CPC Class Codes: C10M 105/02 Well-defined hydrocarbons petroleum fractions C10M101/02
• CPC Class Codes: C10M 105/06 aromatic
• CPC Class Codes: C10M 105/32 Esters
• CPC Class Codes: C10M 105/38 of polyhydroxy compounds
• CPC Class Codes: C10M 105/42 Complex esters, i.e. compounds containing at least three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compound: monohydroxy compounds, polyhydroxy compounds, monocarboxylic acids, polycarboxylic acids and hydroxy carboxylic acids
• CPC Class Codes: C10M 105/48 of carbonic acid
• CPC Class Codes: C10M 107/24 containing monomers having an unsaturated radical bound to an alcohol, aldehyde, ketonic, ether, ketal or acetal radical
• CPC Class Codes: C10M 107/34 Polyoxyalkylenes
• CPC Class Codes: C10M 171/008 Lubricant compositions compatible with refrigerants
• CPC Class Codes: C10M 2203/065 used as base material
• CPC Class Codes: C10M 2205/223 used as base material
• CPC Class Codes: C10M 2207/0406 used as base material
• CPC Class Codes: C10M 2207/2805 used as base material
• CPC Class Codes: C10M 2207/2825 used as base material
• CPC Class Codes: C10M 2207/2835 : used as base material
• CPC Class Codes: C10M 2207/301 : used as base material
• CPC Class Codes: C10M 2207/325 : used as base material
• CPC Class Codes: C10M 2209/043 : used as base material
• CPC Class Codes: C10M 2209/1033 : used as base material
• CPC Class Codes: C10N 2020/101 : Containing Hydrofluorocarbons
• CPC Class Codes: C10N 2030/06 : Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
• CPC Class Codes: C10N 2030/12 : Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
• CPC Class Codes: C10N 2030/20 : Colour, e.g. dyes
• CPC Class Codes: C10N 2030/70 : Soluble oils
• CPC Class Codes: C10N 2040/30 : Refrigerators lubricants or compressors lubricants
• CPC Class Codes: F25B 1/00 : Compression machines, plants or systems with non-reversible cycle F25B3/00, F25B5/00, F25B6/00, F25B7/00, F25B9/00 take precedence
• CPC Class Codes: F25B 2400/12 : Inflammable refrigerants
• CPC Class Codes: F25B 2500/16 : Lubrication
• CPC Class Codes: F25B 31/002 : Lubrication

Abstract

To provide a composition for a heat cycle system having favorable lubricating properties and comprising a working fluid for heat cycle which has a low global warming potential and which can replace R410A and a heat cycle system employing the composition. A composition for a heat cycle system comprising a working fluid for heat cycle containing trifluoroethylene, and a refrigerant oil (for example, an ester refrigerant oil, an ether refrigerant oil, a polyglycol refrigerant oil or a hydrocarbon refrigerant oil), and a heat cycle system employing the composition for a heat cycle system.

Claims

1. A composition for a heat cycle system, comprising:

a working fluid for heat cycle; and

a refrigerant oil, wherein the working fluid for a heat cycle comprises trifluoroethylene (HFO-1123), difluoromethane (HFC-32), and (E)-1,3,3,3-tetrafluoropropene (HFO-1234ze(E)) in amounts of;

10 mass %≤

HFO-1123≤

80 mass %;

10 mass %≤

HFC-32≤

75 mass %; and

5 mass %≤

HFO-1234ze(E)≤

60 mass %.

2. The composition for a heat cycle system according to claim 1, wherein the refrigerant oil is at least one member selected from an ester refrigerant oil, an ether refrigerant oil, a polyglycol refrigerant oil and a hydrocarbon refrigerant oil.

3. The composition for a heat cycle system according to claim 2, wherein the refrigerant oil is at least one member selected from a dibasic acid ester, a polyol ester, a complex ester, a polyol carbonate ester, a polyvinyl ether, a polyalkylene glycol and an alkylbenzene.

4. The composition for a heat cycle system according to claim 1, wherein the kinematic viscosity of the refrigerant oil at 40°

C. is from 1 to 750 mm²/s.

5. The composition for a heat cycle system according to claim 1, wherein the kinematic viscosity of the refrigerant oil at 100°

C. is from 1 to 100 mm²/s.

6. The composition for a heat cycle system according to claim 1, wherein a carbon/oxygen molar ratio, which is a ratio of the number of carbon atoms to the number of oxygen atoms, of the refrigerant oil is from 2 to 7.5.

12. The composition for a heat cycle system according to claim 1, wherein the content of trifluoroethylene is from 20 to 80 mass % per 100 mass % of the working fluid for heat cycle.

13. The composition for a heat cycle system according to claim 1, wherein the content of difluoromethane is at least 20 mass % per 100 mass % of the working fluid for heat cycle.

14. A heat cycle system, comprising the composition for a heat cycle system as defined in claim 1.

15. The heat cycle system according to claim 14, wherein the heat cycle is a refrigerating apparatus, an air-conditioning apparatus, a power generation system, a heat transport apparatus or a secondary cooling machine.

7-11. -11. (canceled)