Transportation of Sulfuric Acid with Vacuum Unit

In the chemical industry, for example, in the production of sulfuric acid and the movement of sulfur recovered in refineries, the temperature of liquid substances can vary widely. The study of the effect of aggressive liquid temperature and concentration on the productivity and energy efficiency of vacuum systems for transporting liquids has been carried out. The performance (dry air pumping rate) and the consumed power of the vacuum pump ZhVN-12N depending on the pressure in the working chamber are considered. The correction coefficients of productivity for pumping out humid air have been determined for different temperatures. The performance indicators of a vacuum system for transporting liquids based on ZhVN-12N have been investigated. It was found that an increase in the temperature of the pumped humid air increases the average productivity of the vacuum system for transporting liquids, reducing its energy consumption. It is shown that an increase in the sulfuric acid solution concentration results in a decrease in productivity and an increase in the energy consumption of the vacuum system, while the efficiency decreases slightly.

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