Liquid purification method and apparatus

摘要

A method and apparatus for purifying water by employing steam generated by heating water in a lower section of a container to heat water in an upper section of the container. The lower section is separated from the upper section by a filter. A pressure differential is created across the filter such that a portion of the steam forms a steam pocket below the filter and the remaining portion passes through the filter to heat the water in the upper section. A microprocessor control system is operable to control heating of the water in the lower section and withdrawal of purified water from the upper section to maintain the size of the steam pocket between upper and lower limits.