HEAT SOURCE DEVICE

• Main Authors: TERAUCHI MAKOTO, UCHIYAMA TSUBASA
• Format: Patent
• Language: English; Japanese
• Published: 02.11.2015
• Subjects: BLASTING; DOMESTIC HOT-WATER SUPPLY SYSTEMS; DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS; ELEMENTS OR COMPONENTS THEREFOR; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

PROBLEM TO BE SOLVED: To stabilize a hot water supply temperature when resupplying hot water after stopping hot water supply.SOLUTION: Hot water is supplied through a hot water supply passage after hot water supplied from a hot water storage tub and water from a water supply passage are merged at a merging part. A relation between each mixing ratio level which is a mixing ratio of hot water and water at the merging part and an actually mixed flow ratio of hot water and water to each mixing ratio level has different characteristics for each hot water supply flow rate. Based on relation data for each hot water supply flow rate corresponding to the characteristics, mixing ratio level determination means 39 determines the mixing ratio level according to the hot water supply flow rate during hot water supplying so that the temperature of hot water generated according to the actually mixed flow ratio of hot water and water is a set mixing temperature. At the lowest hot water supply flow rate in the relation data according to the decrease phenomenon of the hot water flow supply rate when stopping supplying the hot water, the mixing ratio level is shifted to the mixing ratio level at which the set mixing temperature is maintained, and thereafter, mixing flow rate control means 35 is commanded so as to wait until starting supplying hot water next time in accordance with the mixing ratio level corresponding to the hot water supply flow rate before stopping supplying the hot water. 【課題】給湯停止後の再出湯時の給湯温度を安定化する。【解決手段】貯湯槽から出湯される湯と給水通路からの水とを合流部で合流し、給湯通路を通して給湯する。合流部で混合する湯と水の混合割合である各混合比レベルと該各混合比レベルに対しての湯と水の実際の混合流量割合との関係が給湯流量毎に異なる特性を有し、この特性に対応する給湯流量毎の関係データに基づき、湯と水の実際の混合流量割合に応じて形成される湯の温度が混合設定温度になるように給湯中の給湯流量に対応させて混合比レベル決定手段３９が混合比レベルを決定する。給湯の停止時には給湯流量の低下現象に対応させて前記関係データにおける最も低い給湯流量において前記混合設定温度を維持する混合比レベルまで混合比レベルを移動させた後、給湯停止前の給湯流量に対応する混合比レベルに合わせて次回の給湯開始まで待機するようにミキシング流量制御手段３５に指令を加える。【選択図】図１