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Refrigerator oil composition, and refrigeration device

A technology of refrigerating machine oil and composition, which is applied in the direction of lubricating composition, refrigerating machine, refrigerating components, etc., which can solve the problems of refrigerating device life and refrigerating efficiency reduction, and achieve the effect of excellent thermal stability and excellent compatibility

Inactive Publication Date: 2017-05-10
IDEMITSU KOSAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If phase separation occurs between the refrigerant and the refrigerating machine oil during the operation of the refrigerating device, it will lead to a significant reduction in the life of the refrigerating device and the freezing efficiency

Method used

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  • Refrigerator oil composition, and refrigeration device
  • Refrigerator oil composition, and refrigeration device
  • Refrigerator oil composition, and refrigeration device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~16 and comparative example 1~14

[0355] Refrigerator oil compositions with compositions shown in Tables 2 and 3 were prepared, mixed with the refrigerants described in the tables, and the thermal stability and double-layer separation temperature of the refrigerator oil compositions were measured and evaluated by the methods shown below. The results are shown in Tables 2 and 3.

[0356] (1) Thermal stability (moisture mixing sealing test)

[0357] The thermal stability of the refrigerating machine oil composition was evaluated by water mixing and sealing test.

[0358] Specifically, 30 g of the refrigerating machine oil compositions prepared in Examples and Comparative Examples, 30 g of the refrigerants described in Tables 2 and 3, and water in an amount such that the water content rate becomes 500 ppm were added to the glass tube, and filled with iron (Fe ), copper (Cu), aluminum (Al) metal catalysts and seal the tube, and keep it for 14 days in an environment with a pressure of 0.7kPa and a temperature of 1...

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Abstract

A refrigerator oil composition for a refrigerant comprising an unsaturated fluorinated compound having carbon-carbon unsaturated bonds, represented by general formula (I): C2FpR4-p [in the formula, R independently represents a hydrogen atom, a chlorine atom, a bromine atom or an iodine atom, and p is an integer 1-3], the refrigerator oil composition comprising a base oil (P) containing at least one kind selected from a polyvinyl ether, a polyalkylene glycol, a poly(oxy)alkylene glycol or a copolymer of a monoether or polyvinyl ether of same, and a polyol ester, the dynamic viscosity of the base oil (P) at 100 DEG C being 2.00-50.00mm2 / s, and the hydroxyl value being not more than 5.0mgKOH / g. The refrigerator oil composition exhibits excellent compatibility with a refrigerant comprising an unsaturated fluorinated compound having specific C2 atoms, and exhibits excellent thermal stability.

Description

technical field [0001] The present invention relates to a refrigerating machine oil composition and a refrigerating device using the refrigerating machine oil composition. Background technique [0002] In general, a compression-type refrigeration device is composed of at least a compressor, a condenser, an expansion mechanism (expansion valve, etc.), an evaporator, or a drier, and a mixed liquid of refrigerant and refrigerating machine oil circulates in the closed system. structure. [0003] Conventionally, chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and the like have been used as refrigerants for refrigeration devices, for example. However, these refrigerants are compounds containing chlorine atoms that cause environmental problems, so alternative refrigerants such as hydrofluorocarbons (HFCs) that do not contain chlorine atoms have been studied. [0004] Such hydrofluorocarbons include, for example, 1,1,1,2-tetrafluoroethane (R134a), difluoromethane (R32...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M107/24C09K5/04C10M105/38C10M107/34F25B1/00C10N20/00C10N20/02C10N30/00C10N30/08C10N40/30
CPCC09K5/04C10M105/38C10M107/24C10M107/34F25B1/00C09K5/045C10M171/008C10N2040/30C10N2020/101C10N2030/06C10N2030/10C10N2030/14C10N2030/18C09K2205/126C09K2205/24C10M2207/2835C10M2209/043C10M2209/1033F25B31/002F25B2500/16
Inventor 松本知也
Owner IDEMITSU KOSAN CO LTD
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