WATER REPLENISHING DEVICE
PROBLEM TO BE SOLVED: To inhibit excessive increase of an output temperature during power failure where an opening of a flow regulating valve cannot be controlled in a water replenishing device mixing high-temperature water with low-temperature water.SOLUTION: A water replenishing device 100 mixes h...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To inhibit excessive increase of an output temperature during power failure where an opening of a flow regulating valve cannot be controlled in a water replenishing device mixing high-temperature water with low-temperature water.SOLUTION: A water replenishing device 100 mixes high-temperature water flowing through high-temperature water flow passages 110a-110c with low-temperature water flowing through low-temperature water flow passages 120a-120c in a mixing section 130 so as to deliver the hot water from a hot water delivery flow passage 140. Motor-driven flow regulating valves 160a-160c and motor-driven opening and closing valves 150a-150c are arranged in series in the high-temperature water flow passages 110a-110c. Each of the opening and closing valves 150a-150c is controlled to be closed during cutting off of power, and is controlled to be opened during supplying of power. Motor-driven flow regulating valves 170a-170c are arranged in the low-temperature water flow passages 120a-120c, and motor-driven opening and closing valves are not arranged therein. The low-temperature water flows into the mixing section 130 without passing through the motor-driven opening and closing valves.SELECTED DRAWING: Figure 1
【課題】高温水および低温水を混合する補給水装置において、流量調整弁の開度が制御できなくなる停電時において、出力温度の過上昇の発生を防止する。【解決手段】補給水装置100は、高温水流路110a〜110cを通流する高温水と、低温水流路120a〜120cを通流する低温水とを、混合部130で混合して出湯流路140から出力する。高温水流路110a〜110cには、電動式の流量調整弁160a〜160cおよび電動式の開閉弁150a〜150cが直列に配置される。開閉弁150a〜150cの各々は、非通電時に閉止制御される一方で、通電時に開放制御される。低温水流路120a〜120cには、電動式の流量調整弁170a〜170cが配置されるが、電動式の開閉弁は配置されず、低温水は、電動式の開閉弁を経由せずに混合部130へ流入する。【選択図】図1 |
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