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Lubricating oil composition for rotary screw air compressor and its preparation method

A lubricating oil composition and air compressor technology, applied in the field of lubricating oil, can solve the problems of restricting the normal operation of screw air compressors, insufficient extreme pressure and anti-wear performance, and short service life, so as to enhance the anti-oxidation and anti-corrosion ability, improve Antioxidant performance, effect of improving protective performance

Active Publication Date: 2015-11-25
KASONG SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, these existing oil products still have problems such as easy oxidation and deterioration, insufficient extreme pressure and anti-wear performance, excessive carbon deposition tendency and short service life, which seriously restrict the normal operation of screw air compressors.

Method used

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  • Lubricating oil composition for rotary screw air compressor and its preparation method
  • Lubricating oil composition for rotary screw air compressor and its preparation method
  • Lubricating oil composition for rotary screw air compressor and its preparation method

Examples

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Effect test

preparation example Construction

[0061] Correspondingly, the present invention also provides a kind of preparation method for the lubricating oil composition of rotary screw air compressor, comprises the following steps:

[0062] Weigh the following components:

[0063] 0.1wt% ~ 3.0wt% antioxidant;

[0064] 0.01wt% ~ 1.5wt% metal rust inhibitor;

[0065] 0.01wt% ~ 1.5wt% metal deactivator;

[0066] 0.5wt%~3.0wt% extreme pressure antiwear agent;

[0067] 0.1wt% ~ 2.0wt% pour point depressant;

[0068] 10ppm~500ppm defoamer;

[0069] and the balance of hydrorefined mineral oil;

[0070] Blending the above components to obtain a lubricating oil composition for a rotary screw air compressor;

[0071] The antioxidant is selected from 2,6-di-tert-butyl-p-cresol, phenyl-α-naphthylamine, dialkyldiphenylamine, butyloctyldiphenylamine and 3,5-di-tert-butyl-4 - one or more of hydroxyphenyl acetates;

[0072] The metal deactivator is selected from one or more of benzotriazole, benzotriazole derivatives, thiadiazo...

Embodiment 1

[0082] Weigh the following components:

[0083] 0.5 wt% butyl octyl diphenylamine;

[0084] 0.5 wt% of 3,5-di-tert-butyl-4-hydroxyphenyl acetate;

[0085] 0.05 wt% oleoyl amino acid;

[0086] 0.05wt% T551 metal deactivator;

[0087] 0.5wt% tricresyl phosphate;

[0088] 0.1wt% T803B pour point depressant;

[0089] 30ppm T901 defoamer;

[0090] And the balance of hydrorefined mineral oil GS600N;

[0091] First, add hydrogenated refined mineral oil into a blending kettle with stirring and heating functions, stir and blend at 50°C, then add the above-mentioned various additive components, and after blending for 3 hours, the obtained

[0092] Lubricating oil composition for rotary screw air compressors.

[0093] According to the method described above, the performance evaluation of the obtained rotary screw air compressor oil was carried out. See Table 1 for the results. Table 1 shows the main performance evaluation results of the oil products provided by Examples 1-3 of th...

Embodiment 2

[0099] Weigh the following components:

[0100]1.0wt% butyl octyl diphenylamine;

[0101] 0.6 wt% of 3,5-di-tert-butyl-4-hydroxyphenyl acetate;

[0102] 0.05 wt% oleoyl amino acid;

[0103] 0.07wt% T551 metal deactivator;

[0104] 1.0wt% tricresyl phosphate;

[0105] 0.3wt% T803B pour point depressant;

[0106] 40ppm T902 defoamer;

[0107] And the balance of hydrogenated refined mineral oil Ssangyong 250N;

[0108] First, add hydrogenated refined mineral oil into a blending kettle with stirring and heating functions, stir and blend at 70°C, then add the above-mentioned various additive components, and after blending for 1 hour, obtain a lubricant for rotary screw air compressors oil composition.

[0109] According to the method described above, the performance evaluation of the obtained rotary screw air compressor oil was carried out, and the results are shown in Table 1.

[0110] It can be seen from Table 1 that the lubricating oil product provided by Example 2 of th...

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Abstract

The invention provides a lubricating oil composition used in a rotary screw rod air compressor. The lubricating oil composition comprises the following components in percentage by mass: 0.1-3.0% of antioxidant, 0.01-1.5% of metal antirust agent, 0.01-1.5% of metal deactivating agent, 0.5-3.0% of anti-wear reagent at extreme pressure, 0.1-2.0% of pour point depressant, 10-500ppm of defoaming agent and the balance of hydrofined mineral oil, wherein the antioxidant is one or more of 2,6-ditertiary butyl p-cresol, phenyl-alpha-naphthylamine, dialkyl diphenylamine, butyl octyl diphenylamine and 3,5-ditertbutyl-4-hydroxy hydroxyl acetic acid ester; the metal deactivating agent is one or more of benzotriazole, a derivative of benzotriazole, thiadiazole and a derivative of thiadiazole; the metal antirust agent is one or more of long-chain carboxylic acid, alkyl benzoic acid, oleamide, oleoyl amino acid, benzotriazole and derivative of benzotriazole. The invention further provides a preparation method of the lubricating oil composition.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a lubricating oil composition for a rotary screw air compressor and a preparation method thereof. Background technique [0002] With the development of the air compressor (referred to as air compressor) industry, the trend of screw air compressors monopolizing the market share is becoming more and more obvious. It is estimated that in the next few years, the annual growth rate of my country's air compressors will be around 11%, with technical advantages The number of leading enterprises with energy-saving advantages will also continue to increase. Among them, as an important lubricating oil for the operation of the air compressor, it is used for the lubrication of the moving parts of the compressor cylinder and the exhaust valve, and the air compressor lubricating oil (referred to as air compressor oil) that plays the role of anti-rust, anti-corrosion, sealing and cooling ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N30/10C10N30/12
Inventor 赵之玉刘新强胡轩尹振燕付涛
Owner KASONG SCI & TECH
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