Low-conductivity super-long-acting organic base type anti-freezing cooling liquid

Abstract

The invention provides low-conductivity super-long-acting organic base type anti-freezing cooling liquid, which comprises the following components in percentage by weight: 15 to 96 percent of anti-freezing agent, 0.05 to 1.5 percent of natural alkaloid, 0.5 to 2.5 percent of hetero-cycloalkane, 0.01 to 0.3 percent of azole component, and the balance of deionized water. In invention, since the natural alkaloid is matched with nonionic organic compounds, the prepared anti-freezing cooling liquid has the characteristics of low freezing point, high boiling point, no scale formation, corrosion protection, high heat efficiency and the like; in addition, the prepared anti-freezing cooling liquid also has ultra-low conductivity which can reach 5 mus / cm and is a few hundredths of the conductivity of a common water cooling medium because the anti-freezing cooling liquid does not contain the components of inorganic salts, organic carboxylic acid and the like. The anti-freezing cooling liquid with ultra-low conductivity can effectively slow up the corrosion on metal parts of a cooling system, and meet the requirement of special conditions such as the cooling of a wind generator set and the like on the insulation safety of the anti-freezing cooling liquid. The anti-freezing cooling liquid realizes environmental protection and ultra-long-acting service, and is particularly suitable for special equipment such as a wind generator set, an imperial sedan engine and the like.

Description

technical field [0001] The invention relates to an antifreeze cooling liquid, in particular to a low-conductivity, ultra-long-acting, organic alkali type antifreeze cooling liquid, which belongs to the field of chemical industry. Background technique [0002] Inorganic antifreeze coolants contain components such as borax, nitrite or amine salts, which have serious corrosion to metal parts, short service life, poor stability, and carcinogenicity. Developed countries have restricted their use. Organic antifreeze coolant has the characteristics of excellent anti-corrosion performance, long-term use, environmental protection and non-toxicity, and is favored by more and more people. Many foreign companies, such as Texaco, ARCO, DOW in the United States, CCI in Japan, and BASF in Germany, have developed all organic antifreeze products and put them on the market. [0003] The domestic all-organic antifreeze coolant research started relatively late, and the more advanced products a...

AI Technical Summary

Problems solved by technology

[0004] The solubility of organic carboxylic acid is poor, the production process is complicated, the cost is high, and it is easy to precipitate during use and storage, and the dosage is large. Domestic all-organic antifreeze cooling medium products need to be improved

Some large-scale and advanced equipment, such as wind power generators, luxury cars, etc., have high requirements on the performance of antifreeze coolant, and generally use foreign products with high prices

In particular, the cooling system of wind turbines has high requirements on the conductivity of antifreeze: the conductivity of common water-cooling media is relatively high, generally ≥ 2500μs / cm, and the conductivity of tap water is about 300μs / cm, while the generator working condition requires The conductivity of the cooling medium should be below 100μs / cm to meet the safety requirements. At present, there is no such low-conductivity antifreeze coolant product in China.

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