HOT WATER SUPPLY SYSTEM

• Main Author: MORI SHINYA
• Format: Patent
• Language: English; Japanese
• Published: 25.02.2022
• Subjects: BLASTING; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; HEAT EXCHANGE IN GENERAL; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

To provide a hot water supply system for determining the deterioration of a heat exchanger to discriminate a replacement timing.SOLUTION: A hot water supply system 1 includes a heat exchanger 4 for generating heated water with heat exchange between heating fluid F1 and water W1. A pressure sensor 38 is provided in a heating fluid supply passage 34 which supplies the heating fluid F1 to the heat exchanger 4. Theoretical heat exchange amount calculation means 60 calculates a theoretical heat exchange amount E1 from a value detected by the pressure sensor 38 and the opening of a heating fluid adjusting valve 36. Heat exchange amount calculation means 62 calculates an actual heat exchange amount E2 from the flow rate and the temperature of the water W1 supplied to the heat exchanger 4 and the temperature of the heated water W2 derived from the heat exchanger 4. Determination means 64 determines the deterioration of the heat exchanger 4 from the theoretical heat exchange amount E1 and the heat exchange amount E2.SELECTED DRAWING: Figure 1 【課題】熱交換器の劣化を判定し、交換時期を判別することができる給湯システムを提供する。【解決手段】給湯システム１は、加熱流体Ｆ１と水Ｗ１との間の熱交換により熱水を生成する熱交換器４を備えている。熱交換器４に加熱流体Ｆ１を供給する加熱流体供給通路３４に圧力センサ３８が設けられている。理論熱交換量算出手段６０は、この圧力センサ３８の検出値と加熱流体調節弁３６の開度から理論熱交換量Ｅ１を算出する。熱交換量算出手段６２は、熱交換器４に供給される水Ｗ１の流量および温度と、熱交換器４から導出された熱水Ｗ２の温度から実際の熱交換量Ｅ２を算出する。判定手段６４は、理論熱交換量Ｅ１と熱交換量Ｅ２から熱交換器４の劣化を判定する。【選択図】図１