| 摘要 |
<p>PURPOSE:To prevent natural convection during heat insulation of a terminal hot-water supply unit and reduce radiation loss, by providing an inlet conduit at the lower part of a hot water storing tank equipped with a heating device and an outlet conduit at the upper part thereof, guiding a bypass pipe from the inlet conduit to the outlet conduit, causing part of the bypass pipe placed in the direction of the height of said storing tank to come close to the outer surface of said tank. CONSTITUTION:A terminal hot-water supply unit 4 has a heating device 6 such as a sheathed heater etc. placed in a hot water storing tank 5 and an inlet conduit 7 and an outlet conduit 8 are connected to the lower part and the upper part of said unit 4 respectively. And a bypass pipe 10 branched off from a branch part 9 of the inlet conduit 7 is laid close to the surface of the hot water storing tank 5 and con nected to a primary mixing part 11 on the downstream side of the outlet conduit 8, where the bypass pipe 10 and the hot water storing tank 5 have the same internal temperature distribution, thereby natural convection, when the hot water supply valve 15 is being closed, through the branch part 9 inlet conduit 7 hot water storing tank 5 outlet conduit 8 primary mixing part 11 bypass pipe 10 branch part 9 due to cooling of the bypass pipe 10 is prevented from generating.</p> |
