| 摘要 |
PROBLEM TO BE SOLVED: To provide a drain structure for a hot water storage device having a plurality of drain channels collected into one channel.SOLUTION: A hot water storage device includes a hot water storage tank for storing hot water, a release valve with a negative pressure valve for releasing excessive pressure and damaging negative pressure within the hot water storage tank, and a drain plug communicated with a bottom part of the hot water storage tank to discharge the hot water in the hot water storage tank, and further includes one water collector 17 opened to the atmosphere and to which each of a release drain hose connected to the release valve with the negative pressure valve, and a discharging drain hose 16 connected to the drain plug is connected. An insertion hole 23 into which an L shaped end 22 of the discharging drain hose 16 is inserted is formed on a side wall of the water collector 17, a protrusion wall 24 to which the L shaped end 22 of the discharging drain hose 16 is abutted to be positioned is provided in the water collector 17, and a conical surface 27 for guiding the drain water discharged from a discharge port 26 to a drain port as an eddy current is formed on the bottom part of the water collector 17 facing the downward discharge port 26 of the L shaped end 22 of the discharging drain hose 16. |
