Patent ID: 6083405
Filing Date: 2000-07-04
Classification: C02F,Y02W

Abstract:
A floating water purification free-running apparatus comprising:a floating structure floating on a water area;a water purification section which is mounted on said floating structure and filters water in the water area by using at least one of a plurality of first pumps;a plurality of second pumps for injecting air into the water area;a drain outlet which communicates with said water purification section to drain treated water purified by said water purification section;a free-running section for moving said floating structure on the water area on the basis of a drain injection pressure from said drain outlet;a water quality sensor which is provided as a measuring section to detect water quality in the water area;a solar cell which is formed on an upper portion of said floating structure and receives sunlight to generate power;an inverter for converting the power generated by said solar cell into an AC voltage and applying the voltage as driving power to each pump;a sunshine recorder for measuring a sunshine intensity of sunlight; anda controller which is mounted on said floating structure, operates on the basis of the power generated by said solar cell, and controls the number of pumps to be driven on the basis of at least one of sunshine intensity information from said sunshine recorder and the AC voltage and output frequency of said inverter when making said water purification section perform water purification on the basis of an output from said water quality sensor.