Cooling liquid for screw-type air compressor and preparation method of cooling liquid

A technology of air compressor and coolant, which is applied in the field of screw air compressor coolant and its preparation, and can solve the problems of high price and short service life

Inactive Publication Date: 2021-11-02
AMER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] If the current screw air compressor coolant wants to maintain a long life, it generally uses syntheti

Method used

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  • Cooling liquid for screw-type air compressor and preparation method of cooling liquid

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preparation example Construction

[0029] The present invention also provides a preparation method of the above-mentioned screw air compressor cooling liquid, comprising the following steps:

[0030] S1. Add secondary hydrogenated mineral oil and polymethacrylate to the reaction device, stir until transparent, add zinc diamyl dithiocarbamate, continue stirring until transparent, add composite additives and ashless antioxidant, The temperature is raised to 80°C-100°C, the temperature is maintained, and the reaction device is kept at a negative pressure of less than 0.09MPa; it is easy to remove trace moisture under negative pressure.

[0031] S2. Continuously detect the trace moisture of the substances in the reaction device. The trace moisture is controlled to cool down when it is not more than 50PPM, and the negative pressure is stopped after cooling for at least 10 minutes; excessive moisture can easily cause opacity in oil storage and affect the quality of oil products. Controlling trace moisture can Control...

Embodiment 1

[0038] This embodiment provides a cooling liquid for a screw air compressor, which includes the following components in parts by weight: 296.4 parts of secondary hydrogenated mineral oil, 1.35 parts of ashless antioxidant, 0.45 parts of polymethacrylate, and 0.45 parts of diamyl 0.45 part of zinc dithiocarbamate, 0.06 part of aliphatic aromatic hydrocarbon, 0.09 part of polyether polymer compound and 1.35 part of compound additive; ashless antioxidant is derived from ashless thiocarbamate and methyl benzene triazole composition of matter. The preparation method of the cooling liquid for the screw air compressor is as follows: closing the bottom valve of the reaction kettle, pouring 150KG of CNOOC's secondary hydrogenated oil 150SN and 146.4Kg of Formosa Plastics' secondary hydrogenated base oil 500SN under stirring, and circulating Add 450 g of polymethacrylate and stir for 5 minutes. After the liquid is transparent, add 450 g of zinc diamyl dithiocarbamate and continue stirri...

Embodiment 2

[0040]This embodiment provides a cooling liquid for a screw air compressor, which includes the following components in parts by weight: 330 parts of secondary hydrogenated mineral oil, 2 parts of ashless antioxidant, 0.6 parts of polymethacrylate, and dipentyl 0.6 part of zinc dithiocarbamate, 0.1 part of aliphatic aromatic hydrocarbon, 0.2 part of polyether polymer compound and 2 parts of compound additives; ashless antioxidant is derived from ashless thiocarbamate and tolutriazole composition of matter. The preparation method of the cooling liquid for the screw air compressor is as follows: closing the bottom valve of the reaction kettle, pouring 330KG of CNOOC's secondary hydrogenated oil 150SN under stirring, adding 600 g of polymethacrylate under circulation, and stirring for 10 minutes, the liquid is transparent Then add 600g of zinc diamyl dithiocarbamate and continue stirring for 30min. After the liquid is transparent, add 2Kg of Rheinland's screw air compressor coolan...

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Abstract

The invention relates to the technical field of cooling liquid, in particular to cooling liquid for a screw-type air compressor and a preparation method of the cooling liquid. The cooling liquid for the screw-type air compressor comprises the following components: secondary hydrogenated mineral oil, an ashless antioxidant, polymethacrylate, zinc dipentyldithiocarbamate, aliphatic aromatic hydrocarbon, a polyether high-molecular compound and a composite additive, wherein the ashless antioxidant is a composition of ashless thiocarbamate and a methyl benzotriazole derivative. The cooling liquid for the screw-type air compressor is long in service life and low in cost.

Description

technical field [0001] The invention relates to the technical field of cooling liquid, in particular to the cooling liquid of a screw air compressor and a preparation method thereof. Background technique [0002] Coolant, the full name should be called antifreeze coolant, which means coolant with antifreeze function. Antifreeze can prevent the coolant from freezing and bursting the radiator and freezing the engine cylinder block when parking in cold seasons, but we want to correct a misunderstanding, Antifreeze is not only used in winter, it should be used all year round. In the normal maintenance of the car, the engine antifreeze needs to be replaced every year of driving. [0003] The current screw air compressor coolant generally uses synthetic base oil if it wants to maintain a long life, but it is expensive. If mineral oil is used, the service life will not meet the requirements. SUMMARY OF THE INVENTION [0004] Based on this, the present invention provides a cooli...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M177/00C09K5/10C10N30/10
CPCC10M169/048C10M177/00C09K5/10C10M2203/1006C10M2209/084C10M2219/068C10M2209/103C10M2215/223C10M2219/066C10M2203/06C10N2040/30C10N2030/10C10N2030/72C10N2010/04
Inventor 魏芳仕汪小龙
Owner AMER TECH CO LTD
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