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Waterless liquid coolant for engine under extreme conditions and preparation method thereof

A technology of extreme conditions and engines, applied in the direction of chemical instruments and methods, metal material coating technology, heat exchange materials, etc., can solve inconvenience and other problems, achieve high conductivity, good corrosion performance, and prevent electrochemical corrosion Effect

Inactive Publication Date: 2017-04-19
安徽超际环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In China, cars in areas with extreme climates such as Mohe add water during the day and release water at night, which is very inconvenient

Method used

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  • Waterless liquid coolant for engine under extreme conditions and preparation method thereof
  • Waterless liquid coolant for engine under extreme conditions and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] Weigh 23Kg of dipropylene glycol and 48Kg of propylene glycol and stir evenly; then add 16Kg of imidazole ionic liquid into it, and use a magnetic stirrer to fully stir for about 1 hour until uniform; add 1.5kg of silicone defoamer, and fully stir until completely dissolved ; Then add 0.5kg tolyltriazole, 0.5kg sodium nitrite, 0.8kg sebacic acid, 0.7kg caprylic acid, 0.3kg citric acid, 0.8kg sodium metasilicate, 0.7kg ammonium molybdate, and heat to 73°C -77°C, fully stirred until completely dissolved; finally add 7.5Kg viscosity reducer, fully stir until completely dissolved, that is, the finished product of anhydrous coolant for engine under extreme conditions of the present invention, its freezing point is -67.5°C, The boiling point is 253°C.

Embodiment 2

[0103] Weigh 25Kg of dipropylene glycol and 47Kg of propylene glycol and stir evenly; then add 17Kg of imidazole-based ionic liquid to it, then add 2.2Kg of imidazole-based ionic liquid into it, and stir fully with a magnetic stirrer for about 1 hour until uniform; add 1.8kg of organic silicon Defoamer, fully stirred until completely dissolved; then add 0.8kg tolyltriazole, 0.5kg sodium nitrite, 0.5kg sebacic acid, 0.7kg octanoic acid, 0.4kg citric acid, 0.6kg sodium metasilicate , 0.8kg ammonium molybdate, fully stirred, until fully dissolving; Add 7.2kg viscosity reducer at last, fully stir, until fully dissolving, promptly obtain the anhydrous cooling liquid finished product of motor under extreme conditions of the present invention, and its freezing point is- 65.5°C, the boiling point is 254°C.

Embodiment 3

[0105] Weigh 25Kg of dipropylene glycol and 45Kg of propylene glycol and stir evenly; then add 16Kg of imidazole ionic liquid into it, and stir fully with a magnetic stirrer for about 1 hour until uniform; add 1.0kg of silicone defoamer, and fully stir until completely dissolved ; Add 0.8kg tolyltriazole, 0.5kg sodium nitrite, 0.5kg sebacic acid, 0.7kg octanoic acid, 0.4kg citric acid, 0.6kg sodium metasilicate, 0.8kg ammonium molybdate successively, fully stir until Completely dissolve; finally add 6.8kg of viscosity reducer, fully stir until completely dissolved, that is, obtain the finished product of water-free coolant for engine under extreme conditions of the present invention, its freezing point is -69 ℃, boiling point is 255 ℃.

[0106] After the product of the present invention is sent to the Chinese People's Liberation Army Oil Plant and Oil Plant Equipment Inspection and Test Center for inspection, the inspection report is as follows, and part of the inspection data ...

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Abstract

The invention relates to a waterless liquid coolant for an engine under extreme conditions and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing, by weight, 10 to 20 parts of imidazole ionic liquid, 10 to 30 parts of dipropylene glycol and 40 to 60 parts of propylene glycol under stirring so as to obtain base liquid; adding 0.2 to 2 parts by weight of an organosilicon antifoaming agent into the base liquid and carrying out uniform mixing under stirring; adding 0.7 to 8 parts by weight of a composite corrosion inhibitor into a mixed solution obtained in the previous step, carrying out heating to 70 to 80 DEG C and then carrying out uniform mixing under heating and stirring; and adding 5 to 10 parts by weight of a viscosity-reducing agent into a mixed solution obtained in the previous step and carrying out carrying out uniform mixing under stirring. The invention has the beneficial effects that the waterless liquid coolant has a freezing point of less than -65 DEG C and a boiling point of 255 DEG C, and has long-acting and excellent corrosion resistance; the waterless liquid coolant can rapidly form a metal oxide passive film on the surfaces of a plurality of metals so as to realize anticorrosion and construction of an activated adsorption film-forming corrosion mitigation system; special-effect aluminum corrosion inhibitor, i.e., sodium metasilicate, can protect aluminum structural members in the engine; and tolyltriazole can protect copper structural members in the engine.

Description

technical field [0001] The invention relates to an anhydrous cooling liquid of imidazole ionic liquid for engines under extreme conditions and a preparation method thereof. Background technique [0002] Automobile antifreeze coolant, it has the function of antifreezing in winter and anti-boiling in summer, protects the cooling system of the engine, improves the heat dissipation effect, and improves the engine efficiency. It is used in the heat dissipation system of vehicles equipped with liquid-cooled engines such as automobiles and excavators. An antifreeze liquid. The material of the engine cooling system has been in direct contact with the cooling medium for a long time, and works in an alternate environment of normal temperature (when the engine is not working) and high temperature (when the engine is working). , The cavitation of the engine cylinder liner causes the engine cylinder to enter the coolant, etc. [0003] The engine is the core component of the car. The po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/20C23F11/08C23C22/03
CPCC09K5/20C23C22/03C23F11/08
Inventor 王志德黄方志周喆
Owner 安徽超际环保科技有限公司
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