CIRCULATION TYPE BATH DEVICE UTILIZING ELECTRIC WATER HEATER

摘要

PURPOSE:To make efficient use of surplus power and to save water by disposing a circulation hot water conduit pipe in a manner capable of being heated by the heat of heated water from an electric water heater, and connecting the end part of said pipe to a bathtub through forcibly circulating means and a filtrating filter. CONSTITUTION:A main forced circulation pump P1 is operated while heating water by an electric water heater 20 by utilizing surplus power generated in a midnight time zone until water reaches the highest hot water temperature. In this state, bathtub water flowing out through an outlet port of a bathtub 10 passes through an opening 42 on the bathtub side of a three-way cock 40, passage opening 43 and filtrating filter F, in this sequence, and thereafter passing through lower connecting pipe 35 of a circulation pipe line 30, coil-shaped pipe 33, vortex pipes 32 and 31, upper connecting pipe 34, and inlet port of the bathtub 10, in this sequence, then returning to the bathtub 10. The bathtub water makes such a circulating motion as described above. This circulation water continues circulation in the stage of flowing through coil-shaped pipe 33, vortex pipe parts 32 and 31 while being heated by the heat of heated water within a warm water retaining part 24 of the water heater 20. Therefore, while repeating the circulation, the temperature of water within the bathtub is changed to a temperature at which bathing can be taken comfortably.