WATER HEATER

To provide a water heater easily applicable to construction work, maintenance and an existing apparatus and highly accurately detecting a temperature of feed water in the vicinity of a mixing valve section, without needing additional parts.SOLUTION: A water heater 10 includes a heater 11, a water pa...

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Bibliographische Detailangaben
1. Verfasser: MURAKAMI YOTARO
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a water heater easily applicable to construction work, maintenance and an existing apparatus and highly accurately detecting a temperature of feed water in the vicinity of a mixing valve section, without needing additional parts.SOLUTION: A water heater 10 includes a heater 11, a water passage section 13, a mixing valve section 14, a circulation mechanism section 15, a drive amount acquisition section 51 and a control section 52. In the water passage section 13, feed water heated by the heater 11 flows. The mixing valve section 14 is provided in the water passage section 13 and changes a mixing ratio between the feed water and non-heated water that is not heated by driving a valve member 31 by using a drive section 32 to generate mixed water having a set temperature that is set beforehand. The circulation mechanism section 15 includes: a connecting passage section 21 branched from the water passage section 13 and connecting the water passage section 13 and the heater 11; an on-off valve section 23 opening/closing the connecting passage section 21; and a pump 22. The drive amount acquisition section 51 acquires drive amount of the drive section 32. The control section 52 controls the circulation mechanism section 15 on the basis of the drive amount acquired by the drive amount acquisition section 51.SELECTED DRAWING: Figure 1 【課題】部品の追加を必要とすることなく、工事やメンテナンスおよび既存の機器への適用も容易であり、混合弁部の近傍における供給水の温度を高精度で検出する給湯装置を提供する。【解決手段】給湯装置10は、加熱器11、水路部13、混合弁部14、循環機構部15、駆動量取得部51および制御部52を備える。水路部13は、加熱器11で加熱された供給水が流れる。混合弁部14は、水路部13に設けられ、駆動部32で弁部材31を駆動することにより供給水と加熱されていない非加熱水との混合率を変更して、予め設定された設定温度の混合水を生成する。循環機構部15は、水路部13から分岐し水路部13と加熱器11とを接続する接続通路部21、接続通路部21を開閉する開閉弁部23、およびポンプ22を有する。駆動量取得部51は、駆動部32の駆動量を取得する。制御部52は、駆動量取得部51で取得した駆動量に基づいて、循環機構部15を制御する。【選択図】図1