Refrigerating engine oil composition and application thereof

A technology for refrigerating machine oil and composition, applied in the direction of lubricating composition and the like, can solve the problems of affecting the refrigeration performance of compressors, and achieve the effects of excellent thermal stability, excellent economic performance and low viscosity

Inactive Publication Date: 2014-10-08
SHRIEVE CHEM SHANGHAI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this patent application, the refrigerating machine oil composition contains a certain amount of olefins and polyolefins, considering that the presence of olefins and polyolefins will affect the thermal stability and economic performance of the oil, which in turn will affect the refrigeration performance of the compressor

Method used

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  • Refrigerating engine oil composition and application thereof
  • Refrigerating engine oil composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Based on the total weight of the refrigerating machine oil combination, select 65 parts of linear alkylbenzene with a molecular weight between 215 and 230 and a distillation range between 260 and 300, and select 33.47 parts of C P (paraffin) content not less than 50% of the total weight, C A (aromatic hydrocarbons) content not more than 2% of the total weight, C N (cycloalkane) or cyclic hydrocarbon content of 35% to 47% of the total weight, a mixture of alkanes with a distillation range of 220°C to 350°C, 1.5 parts of phosphate ester extreme pressure antiwear agent; 0.03 part of methyl benzo For the metal deactivator of triazole derivatives, the above raw materials are mixed evenly, heated to 40-50°C, and high-purity nitrogen or other inert gases with a moisture content of 0.5ppm are introduced at the same time for about 2-4 hours. Test the water content of the refrigerating machine oil. If the water content is lower than 25ppm, the sample is qualified and sealed to m...

Embodiment 2

[0033] Based on the total weight of the refrigerating machine oil combination, select 50 parts of linear alkylbenzene with a molecular weight between 220 and 240 and a distillation range between 270 and 320, and select 48.5 parts of C P (paraffin) content not less than 50% of the total weight, C A (aromatic hydrocarbons) content not more than 1% of the total weight, C N (cycloalkane) or cyclic hydrocarbon content of 35% to 47% of the total weight, a mixture of alkanes with a distillation range of 220°C to 350°C, 1.5 parts of phosphate ester extreme pressure antiwear agent; mix the above raw materials evenly, Heating to 40-50°C, while passing high-purity nitrogen or other inert gas with a moisture content of 0.5ppm, for about 2-4 hours. Test the water content of the refrigerating machine oil. If the water content is lower than 25ppm, the sample is qualified and sealed to make sample 2.

Embodiment 3

[0035] Based on the total weight of the refrigerating machine oil combination, select 40 parts of linear alkylbenzene with a molecular weight between 230 and 260 and a distillation range between 270 and 320, and select 58.3 parts of C P (paraffin) content not less than 50% of the total weight, C A (aromatic hydrocarbons) content not more than 1% of the total weight, C N (cycloalkane) or cyclic hydrocarbon content of 35% to 47% of the total weight, a mixture of alkanes with a distillation range of 220°C to 400°C, 0.2 parts of phenolic antioxidant BHT, 1.5 parts of phosphate ester extreme pressure resistance Grinding agent: Mix the above raw materials evenly, heat to 40-50°C, and at the same time pass high-purity nitrogen or other inert gas with a moisture content of 0.5ppm for about 2-4 hours. Test the water content of the refrigerating machine oil. If the water content is lower than 25ppm, the sample is qualified and sealed to make sample 3.

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Abstract

The invention relates to a refrigerating engine oil composition and an application of the refrigerating engine oil composition. One aim of the invention is to provide a refrigerating engine oil composition which has good compatibility with hydrocarbon refrigerants, is high in flash point and low in viscosity, can be used for furthest increasing the COP (coefficient of performance) value of a compressor, and has excellent thermal stability and relatively low cost. The other aim of the invention is to provide an application of the refrigerating engine oil composition used as a lubricating agent in a refrigeration compressor which uses isobutane, propane or a mixture of isobutane and propane as a refrigerant. The refrigerating engine oil composition consists of the following components in percentage by weight: 96.5-99.5% of base oil and 0.5-3.5% of a lubricating oil additive, wherein by taking the weight of the base oil as 100%, the base oil comprises the following components in percentage by weight: 20-79% of alkylated aromatic hydrocarbon and 21-80% of an alkane mixture; by taking the total weight of the composition as 100%, the lubricating oil additive comprises the following components in percentage by weight: not more than 3% of an extreme pressure anti-wear additive, 0-3% of an antioxidant, 0-3% of the lubricating agent, 0-0.8% of a metal deactivating agent and 0-0.02% of an anti-foaming agent.

Description

technical field [0001] The invention relates to a refrigerating machine oil composition, in particular to a refrigerating machine oil composition suitable for isobutane, propane or a mixture thereof as a refrigerant. Background technique [0002] Compression refrigerators are composed of compressors, condensers, throttling expansion mechanisms (such as thermal expansion valves, electronic expansion valves, capillary tubes), evaporators, dryers, etc. Compressors are used to compress hydrocarbon refrigerants into high-temperature and high-pressure gases. After the condenser becomes medium-temperature and high-pressure liquid, the refrigerant evaporates and absorbs heat in the evaporator after being throttled and depressurized by the throttling expansion mechanism, and the entire refrigeration process is completed. Refrigeration oil in the compressor, which plays a role in lubrication, heat dissipation, sealing, and noise reduction, has an important impact on the performance an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04
Inventor 易书理杨晓娜胡越兰
Owner SHRIEVE CHEM SHANGHAI LTD
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