Anhydrous cooling fluid for engine

Abstract

An anhydrous cooling fluid for an engine is characterized by comprising raw materials in percentage by mass as follows: 89%-97% of propylene glycol, 0.1%-1% of a corrosion inhibitor, 1%-3% of an alkaline supplement, 0.5%-2% of a defoaming agent and 1%-5% of an assistant, wherein the corrosion inhibitor is one or combination of benzothiazolethiol and tolyltriazole; the alkaline supplement is one or combination of ethylenediamine and triethanolamine; the defoaming agent is one or combination of tributyl phosphate and polyoxypropylene glycerol ether, the assistant comprises raw materials in percentage by mass as follows: 50%-68% of propylene glycol, 15%-30% of triethanolamine,15%-30% of a viscosity reducer and 0.01%-0.1% of a pigment; the viscosity reducer is diethylene glycol monobutyl ether, and the pigment is basic fuchsin; a production method of the assistant comprises steps as follows: 50%-68% of propylene glycol, 15%-30% of triethanolamine,15%-30% of the viscosity reducer and 0.01%-0.1% of the pigment are weighed in percentage by mass and are mixed uniformly, a mixed solution is formed and heated to higher than 195 DEG C, heating is stopped after the color turns to amber, and the assistant is formed after the mixed solution is cooled. The anhydrous cooling fluid for the engine is safe, environment-friendly, energy-saving and long-acting.

Description

technical field [0001] The invention relates to an engine coolant, which is an anhydrous coolant without ethylene glycol. Background technique [0002] Engine coolant is an essential system setting for engines such as cars, trains, airplanes, and ships. With the rapid development of the engine manufacturing industry, the engine is developing towards high power, heavy load, and high speed, but the volume is gradually reduced, and the operating temperature of the engine is continuously increasing. Above ℃, cooling liquid with good heat transfer effect. [0003] The most common coolant on the market is ethylene glycol-water coolant. The boiling point of this water-containing coolant is generally around 107°C, which cannot meet the performance requirements of modern high-power engines. At the same time, because of the presence of water, the polyol is more likely to generate acidic substances during use, which will cause serious corrosion to the metal parts of the engine coolin...

AI Technical Summary

Problems solved by technology

However, the invention still contains ethylene glycol, which cannot overcome the problems caused by the use of ethylene glycol itself in the cooling liquid