| 摘要 |
<p>PURPOSE:To enable quick taking-out of high temperature water through a stratum forming method of the high temperature water at the upper part, by a method wherein force of a circulating pump is attenuated by an attenuator of a flow by feeding only the high temperature water into the upper part of a hot water tank from a feed hot water pipe by a flow control valve opening and closing through a temperature of feed water so as not to generate a convection within the hot water tank. CONSTITUTION:A flow control valve 15 provided within a duct of a hot water tank 3 and heat source parts 5a and 5b is constituted by providing a diskform movable plate 20 secured to a temperature sensing part 18, wherein wax is enclosed, against an orifice plate 22, and making the tip of a pin 23 protruding elastically from the top of the temperature sensing part 18 touch a fixing plate 24 of a pin. At the initial stage of additional heating, low temperature water at a transitional building-up period of the heat source parts 5a and 5b is fed into a taking-in pipe 2 of water through a circulation pipe 17 by a method wherein a duct between the orifice plate 22 and the diskform movable plate 20 is blocked through contraction of the temperature sensing part 18 of the flow control valve 15 by sensing the low temperature water by the temperature sensing part 18. After that, as the temperature sensing part 18 is swollen and high temperature water, whose temperature is invariable, fed into a flow speed attenuator 12 from a feed hot water pipe 8 is dispersed and spouted at a flow speed close to static pressure when a temperature of hot water becomes high, upper temperature stratum of high temperature water is formed.</p> |
