Environment-friendly anti-freezing and anti-boiling heat transfer medium and its application

Abstract

The invention provides an environment-friendly antifreezing anti-boiling heat conducting medium. The medium comprises basic liquid and a corrosion inhibitor. The basic liquid serves as main ingredients of the heat conducting medium, and the corrosion inhibitor accounts for 0.01% to 5% of the total mass of the heat conducting medium. The basic liquid comprises at least one liquid selected from monohydric alcohol, dihydric alcohol, trihydric alcohol, polyhydroxy-alcohol, ester of monohydric alcohol, dihydric alcohol, trihydric alcohol and polyhydroxy-alcohol and a mixture of monohydric alcohol, dihydric alcohol, trihydric alcohol, polyhydroxy-alcohol and ester and water, wherein the liquid is used for reducing the freezing point. The corrosion inhibitor at least comprises MQ silicon resin and an imidazole compound. The heat conducting medium further comprises organic acid and organic base. The heat conducting medium is excellent in heat conducting performance, high temperature boiling preventing performance and safety performance and suitable for heat conducting systems in various high-temperature and low-temperature work environments, can meet stricter requirements and has excellent corrosion inhibition performance and long-acting use stability performance.

Description

technical field [0001] The invention relates to a heat-conducting medium, in particular to an environment-friendly antifreezing and anti-boiling heat-conducting medium and its application. Background technique [0002] In ordinary heating systems and solar systems, the performance of the heat transfer medium will directly affect the use effect and life of the heating system and split solar energy, and even indirectly affect the health of consumers, so the choice of heat transfer medium is very important . [0003] Water has good thermal conductivity. At the same time, water has a large specific heat capacity and has good heat absorption performance. It is often used as the main component of heat transfer medium. However, the freezing point of water is high, and it starts to freeze and expand when it is below 0°C. In the north and other regions where it is below 0°C in winter, it cannot be used normally. Sodium nitrite or dichromate is added to some heat transfer media to l...

AI Technical Summary

Problems solved by technology

The boiling point of the heat transfer medium will also have a great impact on the high temperature resistance of the entire heat exchange system. However, the boiling point of many heat transfer media on the market is only 90-100°C, which is volatile and requires frequent replenishment of water.

The heat collector, circulation pipeline, water pump and water tank in the heat conduction system are composed of steel, cast iron, brass, copper, aluminum and stainless steel. Due to the different potentials of the electrodes of different metals, electrochemical corrosion is prone to occur under the action of electrolytes. At the same time Alcohols in the heat transfer fluid will decompose to form acidic products, which will also promote the corrosion of the heat transfer system, resulting in poor water circulation, blockage of pipes, slow or no rise in water temperature, and if the corrosion is perforated, the heat transfer fluid will seep into the water tank and cause damage to consumers. bring health risks

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