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Refrigerating machine oil composition

A technology of refrigerating machine oil and composition, applied in the directions of lubricating composition, petroleum industry, base material, etc., can solve the problems of less frictional heat, poor compatibility, large flow resistance, etc., and achieve improved viscosity, good compatibility, viscosity Moderate effect

Inactive Publication Date: 2017-05-10
湖南金泰环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-viscosity lubricating oil has a large load-carrying capacity and is easy to maintain liquid lubrication, but the high-temperature part tends to deposit carbon, and its flow resistance is also large, which increases the friction power consumption and starting resistance of the compressor
Low-viscosity lubricating oil has small flow resistance and less frictional heat, but it is not easy to form a lubricating oil film, and the oil sealing effect is poor
[0004] Commonly used refrigerants in refrigerators are chlorofluoroalkanes (such as R12) and hydrochlorofluoroalkanes (such as R22), but chlorofluoroalkanes have a destructive effect on the ozone layer and have a greater impact on the environment, while their transitional substitutes contain hydrogen Chlorofluoroalkanes are easy to decompose in the bottom atmosphere, and their ability to damage the ozone layer is lower than that of chlorofluoroalkanes. They can still cause great harm to the ozone layer if used for a long time and in large quantities.
In order to avoid the destruction of the ozone layer, R134a with good environmental performance has been gradually adopted as the refrigerant, and R134a is suitable for deep refrigeration. When the refrigerator uses R134a as the refrigerant, the viscosity of the refrigerator oil is high, but high-viscosity refrigerator oil and R134a poor compatibility

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A refrigerating machine oil composition, each component of which is mixed in the following proportions:

[0027] Polyol ester, its mass content is 93%;

[0028] Antioxidant, its mass content is 2%;

[0029] Anti-corrosion agent, its mass content is 1%;

[0030] Antiwear agent, its mass content is 4%.

[0031] R in the general formula (I) 1 ethyl group, R 2 It is a methyl group; the number of carbon atoms of the unsaturated fatty acid is 7; the antioxidant is an amine antioxidant.

Embodiment 2

[0033] Compared with Example 2, the content of each component is different, wherein the mass content of polyol ester increases to 98%, the mass content of antioxidant decreases to 0.2%, the mass content of anticorrosion agent decreases to 0.3%, and the mass content of antiwear agent decreases is 1.5%, and R in the general formula (I) 1 is a butyl group, R 2 It is an ethyl group, the number of carbon atoms of the unsaturated fatty acid is 9, and the antioxidant is a phenolic antioxidant.

Embodiment 3

[0035] Compared with Example 1, the content of each component is different in Example 3, wherein the mass content of polyol ester increases to 94%, the mass content of antioxidant decreases to 0.5%, the mass content of anticorrosion agent decreases to 0.5%, and the mass content of antiwear agent The increase is 5%, and the R in the general formula (I) 1 is n-pentyl group, R 2 It is a butyl group, the number of carbon atoms of unsaturated fatty acid is 11, and the antioxidant is a mixture of amine antioxidants and phenolic antioxidants.

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Abstract

The invention provides a refrigerating machine oil composition which comprises, by mass percentage, 93-98% of polyol ester, 0.2-2% of antioxidant, 0.3-1% of corrosion inhibitor and 1.5-5% of antiwear agent. According to the refrigerating machine oil composition, lubricity and compatibility with a refrigerant can be considered, and the refrigerating machine oil composition can run stably for a long time in a refrigerating machine.

Description

technical field [0001] The invention relates to a lubricating oil composition, in particular to a refrigerating machine oil composition. Background technique [0002] The lubricating oil used in the refrigerator is refrigerating machine oil. Its main functions include: generating an oil film on the surface of the parts that rub against each other, so that the friction surface is completely covered by the oil film to reduce the wear of the compressor parts; the parts work through the flowing refrigerating machine oil The heat generated in the medium is taken away to keep the working temperature of the parts within the allowable range; between the piston and the cylinder wall, the sealing place such as the friction surface of the oil seal is filled with refrigerating machine oil to prevent gas and oil leakage; during the work of parts, The abrasive debris and impurities generated by metal friction are taken away by the flow of refrigeration oil. [0003] In order to ensure th...

Claims

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Application Information

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IPC IPC(8): C10M105/38C10M169/04C10N30/08C10N30/02
CPCC10M105/38C10M169/042C10M2207/2835C10N2030/02C10N2030/08
Inventor 许峻豪
Owner 湖南金泰环保科技有限公司
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