| 摘要 |
<p>PURPOSE:To obtain the delivery hot water temperature characteristics with small temperature difference and at the same time obtain the hot water with a temperature, which is proper and stable at all times, even if the fluctuation of flow rate due to the change of the pressure of inflowing water and the change of the temperature of inflowing water during summer and winter may occur, by a structure wherein an inflowing water chamber and a delivery hot water chamber are provided in a boiler body. CONSTITUTION:Water flows within an inflowing water pipe 1, passes through a first valve 2 and a second valve 3, puts a pressure switch 4 into actuation, flows around a sheathed heater 6 arranged at an inflowing water pipe 13 side, which is separated by a partition plate 5 in a boiler body 12, and finally flows in a delivery hot water chamber 14 in order to flow off from a shower head 9 through a delivery hot water pipe 8. The delivery hot water temperature is kept at the proper value by on-off-controlling the sheathed heater 6 by means of a temperature control circuit 16 based upon the temperature of hot water at the inflowing water chamber 13 side detected with a heat-sensitive element 15. In addition, the high temperature portion and low temperature portion of hot water, both of which are produced due to the ON-OFF control, are brought into an agitated state in the interior of the delivery hot water chamber 14, resulting in flowing out in the form of hot water with a temperature, which is adequate and stable with the uniform distribution of temperature within the hot water.</p> |
