Method for controlling intermittent vacuum evaporation mass of sodium chloride aqueous solution

TLDR: In this paper, a method for controlling the vacuum evaporation mass of the sodium chloride aqueous solution provided by the invention uses a numerical method to carry out design calculation mainly according to a novel evaporic model and a temperature difference model, so as to achieve the purpose of accurately controlling the water evapsoration mass in the vacuum-evaporation process of a sodium chloride annealing process.

Abstract: The invention relates to a method for controlling the intermittent vacuum evaporation mass of a sodium chloride aqueous solution, which is mainly applied to the intermittent vacuum evaporation and concentration of the sodium chloride aqueous solution as well as crystallization process design, computer simulation and process control thereof, and belongs to the field of chemistry and chemical engineering evaporation and crystallization. The method for controlling the vacuum evaporation mass of the sodium chloride aqueous solution provided by the invention uses a numerical method to carry out design calculation mainly according to a novel evaporation model and a temperature difference model, so as to achieve the purpose of accurately controlling the water evaporation mass in the vacuum evaporation process of the sodium chloride aqueous solution; the method for controlling the intermittent vacuum evaporation mass of the sodium chloride aqueous solution has wide laboratory and industrial application prospect, is beneficial to the design and control of the evaporation, concentration and crystallization process of the sodium chloride aqueous solution, can be applied to the processes of waste water desalination, sea water desalination and sodium chloride industrial crystallization, and is in favor of the promotion of the technological level in the environmental protection and resourcerecycling and utilizing in China.