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Composite additive composition for refrigerating machine oil for screw-type ammonia refrigerating compressor and preparing method thereof

A technology of compound additives and refrigeration oil, which is applied in the directions of additives, lubricating compositions, petroleum industry, etc., can solve the problems of increased energy consumption, cumbersome procedures, and reduced operation efficiency, and achieves low energy consumption, excellent low-temperature fluidity, and high production efficiency. Simple and efficient operation

Inactive Publication Date: 2018-09-28
CNOOC TAIZHOU PETROCHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the many types of raw materials involved in the formula of refrigerating machine oil, the production process is cumbersome, resulting in reduced operating efficiency and increased energy consumption

Method used

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  • Composite additive composition for refrigerating machine oil for screw-type ammonia refrigerating compressor and preparing method thereof
  • Composite additive composition for refrigerating machine oil for screw-type ammonia refrigerating compressor and preparing method thereof
  • Composite additive composition for refrigerating machine oil for screw-type ammonia refrigerating compressor and preparing method thereof

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Experimental program
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Effect test

Embodiment 1

[0031] Composite additive composition 1, the specific formula is shown in Table 1, the aromatic hydrocarbon diluent is light alkylbenzene, and its kinematic viscosity at 40°C is 6mm 2 / s, %C A (The percentage of carbon atoms on the aromatic rings in the total carbon atoms of the average molecule) is 8%.

[0032] Table 1 Refrigeration machine oil composite additive composition 1

[0033]

Embodiment 2

[0035] Composite additive composition 2, the specific formula is shown in Table 2, the aromatic hydrocarbon diluent is heavy alkylbenzene, and its kinematic viscosity at 40°C is 40mm 2 / s, %CA (the percentage of carbon atoms on the aromatic rings in the total carbon atoms of the average molecule) was 26%.

[0036] Table 2 Refrigeration machine oil composite additive composition 2

[0037]

Embodiment 3

[0039] Composite additive composition 3, the specific formula is shown in Table 3, the aromatic hydrocarbon diluent is alkylnaphthalene, and its kinematic viscosity at 40°C is 90mm 2 / s, %CA (the percentage of carbon atoms on the aromatic ring in the total carbon atoms of the average molecule) is 50%.

[0040] Table 3 refrigerating machine oil composite additive composition 3

[0041]

[0042]

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Abstract

The invention discloses a composite additive composition for refrigerating machine oil for a screw-type ammonia refrigerating compressor. The composite additive composition is prepared from, by weight, 5%-70% of aromatic diluent, 0.1%-20% of antioxidant, 0.1%-10% of extrcme pressure anti-wear additive, 0.01%-5% of metal deactivator and 0.001%-0.2% of antifoaming agent, wherein the kinematic viscosity of the aromatic diluent at the temperature of 40 DEG C is 5 mm<2> / s to 100 mm<2> / s, and %CA is 4% to 60%. The refrigerating machine oil obtained after the composite additive composition is added for the screw-type ammonia refrigerating compressor has the excellent low temperature fluidity, oxidation stability, extreme pressure anti-wear property, metal corrosion resistance and foaming resistance, and can more efficiently and circularly work in the ammonia refrigerating compressor for a long life. In addition, through the composite additive composition, the refrigerating machine oil is moreeasy and efficient in production operation and lower in energy consumption.

Description

technical field [0001] The invention relates to a compound additive for machine oil, more precisely, a compound additive composition for refrigerating machine oil for a screw type ammonia refrigeration compressor. Background technique [0002] The working principle of the compression refrigeration system is to use the refrigerant to vaporize and volatilize, absorb the heat of the surrounding medium, reduce the temperature for cooling, and then compress the refrigerant through the compressor, liquefy the condenser to dissipate heat, and then re-gasify, and so on. . The compressor is the key to this kind of refrigeration system. The refrigeration oil plays the roles of lubrication, heat dissipation, sealing and anticorrosion in the compressor, which has a significant impact on the efficiency of the refrigeration system and the life of the compressor. It is very important for compression refrigeration system. The large-scale screw refrigeration compressor unit using ammonia a...

Claims

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Application Information

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IPC IPC(8): C10M167/00C10M161/00C10N30/06C10N30/08C10N30/10C10N30/12C10N30/18
CPCC10M161/00C10M167/00C10M2203/06C10M2207/026C10M2209/08C10M2215/06C10M2215/064C10M2215/223C10M2219/02C10M2219/106C10M2223/041C10M2223/047C10M2223/049C10M2229/041C10N2030/06C10N2030/08C10N2030/10C10N2030/12C10N2030/18
Inventor 刘燕杨德胜王海军刘杰乔琦林建荣王储吉祥辛玲张向英李木青杜川
Owner CNOOC TAIZHOU PETROCHEM CO LTD
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