Used MECO BES3000MSS Bottled Water Distiller with:
Application: distillation using the process of vapor compression to produce distilled water. In this method, de-ionized or softened water (referred to as feedwater) is boiled inside the tubes of a vertical shell-and-tube heat exchanger called an “evaporator”. The boiling water rises to the top of the tube bundle where steam is released. The steam passes through a demister in the evaporator dome to remove any water droplets before entering the suction side of the compressor. The vapor compressor increases the pressure of the steam and discharges the steam down into the steam chest, which is the shell side of the vertical heat exchanger called the “calandria”. In the steam chest, or calandria, the compressed steam passes around the outside of the evaporator tubes and gives up its latent heat to the tubes and the water inside which causes boiling. As the latent heat is transferred, the steam condenses and becomes distillate. This distillate accumulates in the bottom of the calandria and is removed by the distillate pump. A portion of the feedwater in the bottom of the evaporator is removed and discharged to waste to control the rate of concentration in the evaporator. This discharge is referred to as blowdown. The entire process is continuous, and therefore requires a constant supply of feedwater and steam for heat input.
Evaporator: Vertical tube type, with internal downcomer. All welded areas constructed of 316L SST.
