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Refrigerant oil composition, application thereof and compressor

A composition and refrigeration oil technology, applied in the field of compressors, can solve problems such as bearing surface damage, heat increase, and lubricating oil flow reduction on the lubricating surface, so as to prevent copper plating, reduce copper plating phenomenon, and improve reliability.

Active Publication Date: 2020-11-13
ZHUHAI LANDA COMPRESSOR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is manifested by the precipitation of metal copper on the surface of sliding bearings and rolling bearings, and the bearing surface is damaged, which leads to compressor operation problems
[0003] If severe copper plating occurs in the compressor, the assembly gap between the above-mentioned bearing and the crankshaft will shrink or deviate, the flow of lubricating oil on the lubricating surface will decrease, the friction will increase, the heat will increase, and even dry friction will cause heat to melt the bearing bush, resulting in compressor accident

Method used

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  • Refrigerant oil composition, application thereof and compressor
  • Refrigerant oil composition, application thereof and compressor
  • Refrigerant oil composition, application thereof and compressor

Examples

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Embodiment

[0047] According to the preparation method described in the specific embodiment, refrigeration oil compositions 1-13 were obtained, corresponding to Examples 1-10 and Comparative Examples 1-3. See Table 1 for the specific types and weight parts of each component of the refrigeration oil composition.

[0048] Among them, the kinematic viscosity of naphthenic mineral oil at 40°C is 65mm 2 / s, 100℃ kinematic viscosity is 4mm 2 / s.

[0049] Table 1

[0050]

[0051]

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Abstract

The invention provides a refrigerant oil composition, which can be applied to various refrigerant compressors. The refrigerant oil composition comprises base oil containing mineral oil, and also comprises a metal chelating agent and a dehydrating agent. The metal chelating agent and precipitated copper ions can generate a stable complex, and the dehydrating agent can effectively prevent the refrigerant oil from deteriorating to generate acid, thereby preventing copper plating. Therefore, the refrigerant oil composition can reduce the copper plating phenomenon in the high-temperature operationenvironment of a compressor, and the reliability of the compressor is improved.

Description

technical field [0001] The invention relates to the technical field of compressors, in particular to a refrigerating oil composition and the application of the refrigerating oil in compressors. Background technique [0002] Air and moisture intrusion due to assembly problems in the air conditioner compressor will cause copper plating. It is manifested by the precipitation of metal copper on the surface of sliding bearings and rolling bearings, and the bearing surface is damaged, which leads to compressor operation problems. [0003] If severe copper plating occurs in the compressor, the assembly gap between the above-mentioned bearing and the crankshaft will shrink or deviate, the flow of lubricating oil on the lubricating surface will decrease, the friction will increase, the heat will increase, and even dry friction will cause heat to melt the bearing bush, resulting in Compressor accident. Refrigeration oils used in compressors therefore need to be modified to avoid cop...

Claims

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Application Information

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IPC IPC(8): C10M169/04F04B37/12F04B39/02C10N40/30C10N30/06C10N30/10
CPCC10M169/04F04B37/12F04B39/0215C10M2203/1065C10M2215/04C10M2207/124C10M2207/04C10M2207/026C10M2207/283C10M2223/041C10N2020/02
Inventor 黄毓华
Owner ZHUHAI LANDA COMPRESSOR