| 摘要 |
A lid portion (96) for covering the opening of a tank body constituting a water tank is provided with a water receiving portion (97) consisting of a recess for receiving supplied water temporarily, and the water receiving portion (97) is provided with mesh filters (93a, 93b). Impurities such as scale contained in drain water from the pot of a steam generator discharged from a drain valve are filtered through the filters (93a, 93b), and drain water from the pot is reused as water for generating steam without employing a special purification system. Consequently, the number of water supplies to the water tank can be decreased without employing a special purification system. |
