Structure Of Fin Evaporator |
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The evaporator contains Industrial Evaporator Coils and Fin Evaporator. According to the method of evaporation: natural evaporation: that is, the solution evaporates at a temperature lower than the boiling point, such as seawater drying salt. In this case, because the solvent only vaporizes on the surface of the solution, the solvent vaporization rate is low. Boiling evaporation: heating the solution to the boiling point to make it evaporate in a boiling state. Industrial evaporation operations are basically of this type. According to heating methods: direct heat source heating is an evaporation process in which fuel and air are mixed, and the high-temperature flame and smoke generated by the combustion are sprayed directly into the evaporated solution through the nozzle to heat the solution and vaporize the solvent. The indirect heat source heats the walls of the container to the evaporated solution. That is the heat transfer process in the partition wall heat exchanger. According to operating pressure: it can be divided into normal pressure, pressurization, and decompression (vacuum) evaporation operations. Obviously, heat-sensitive materials, such as antibiotic solutions, fruit juices, etc., should be carried out under reduced pressure. High-viscosity materials should be heated by a pressurized high-temperature heat source (such as heat transfer oil, molten salt, etc.) for evaporation According to the number of effects: it can be divided into single-effect and multi-effect evaporation. If the secondary steam produced by evaporation is directly condensed and no longer used, it is called single-effect evaporation. If the secondary steam is used as the next-effect heating steam, and multiple evaporators are connected in series, this evaporation process is multi-effect evaporation. |
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