Composition for heat cycle system, and heat cycle system

Patent metadata

Field	Value
Publication number	US-2016347982-A1
Application number	US-201615236018-A
Country	US
Kind code	A1
Filing date	Aug 12, 2016
Priority date	Feb 20, 2014
Publication date	Dec 1, 2016
Grant date	—

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.

First claim

What is claimed is:

1 . A composition for a heat cycle system comprising a working fluid for heat cycle containing trifluoroethylene, and a refrigerant oil.

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 mm 2 /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 mm 2 /s.

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

7 . The composition for a heat cycle system according to claim 1 , wherein the working fluid for heat cycle further contains a saturated hydrofluorocarbon.

8 . The composition for a heat cycle system according to claim 7 , wherein the saturated hydrofluorocarbon is at least one member selected from difluoromethane, 1,1-difluoroethane, 1,1,1,2-tetrafluoroethane and pentafluoroethane.

9 . The composition for a heat cycle system according to claim 1 , wherein the working fluid for heat cycle further contains a hydrofluorocarbon having a carbon-carbon double bond other than trifluoroethylene.

10 . The composition for a heat cycle system according to claim 9 , wherein the hydrofluorocarbon having a carbon-carbon double bond is at least one member selected from 1,3,3,3-tetrafluoropropene and 2,3,3,3-tetrafluoropropene.

11 . The composition for a heat cycle system according to claim 1 , wherein the content of trifluoroethylene is at least 10 mass % per 100 mass % of the working fluid for heat cycle.

12 . The composition for a heat cycle system according to claim 11 , 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 11 , wherein the working fluid for heat cycle further contains difluoromethane, and the content of difluoromethane is at least 20 mass % per 100 mass % of the working fluid for heat cycle.

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

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

Assignees

• Asahi Glass Co Ltd

Inventors

• Fukushima Masato
• Mitsuoka Hiroaki
• TASAKA Mai

Classifications

• C10N2020/101

  Containing Hydrofluorocarbons · CPC title

• C10N2030/70

  Soluble oils · CPC title

• C10N2030/06

  Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure · CPC title

• C10N2040/30

  Refrigerators lubricants {or compressors lubricants} · CPC title

• C10N2030/20

  Colour, e.g. dyes · CPC title