Beverage water supply device

Abstract

To provide a drinking water supply device capable of suppressing thermal interference by water flowing inside a conduit line between a cold water tank and a hot water tank.SOLUTION: A drinking water supply device 1 comprises: a cold water tank 11 that cools normal temperature water W and stores cold water CW; a hot water tank 12 that is arranged below the cold water tank 11, heats the normal temperature water W and stores hot water HW; and a piping 20 that connects the cold water tank 11 with the hot water tank 12 and supplies the normal temperature water W from the cold water tank 11 to the hot water tank 12. The piping 20 includes: a hot water side extension part 21 that extends from the hot water tank 12 upward in a vertical direction; and a hot water side folded part 22 connected to an end on top of the hot water side extension part 21 in the vertical direction that folds back downward in the vertical direction. The hot water side folded part 22 has a shape that allows retention of air bubbles B generated in the hot water tank 12 when the normal temperature water W is retained in the piping 20.SELECTED DRAWING: Figure 1

Claims

1. A chilled water tank that cools water and stores chilled water, A hot water tank is positioned below the aforementioned cold water tank and stores hot water by heating water, The system includes a pipeline that connects the chilled water tank and the hot water tank to supply water from the chilled water tank to the hot water tank, The aforementioned conduit is In a connected state in which the cold water tank and the hot water tank are connected, the pipeline has a hot water side extension portion extending vertically upward from the hot water tank, a hot water side return portion connected to the vertically upper end of the hot water side extension portion and folded back vertically downward, a cold water side extension portion extending vertically downward from the cold water tank, and a cold water side return portion connected to the vertically lower end of the cold water side extension portion and folded back vertically upward, and is formed in the order of the hot water side extension portion, the hot water side return portion, the cold water side return portion, and the cold water side extension portion from the hot water tank toward the cold water tank. The hot water side return portion and the cold water side return portion are formed in an O-shape such that, when viewed from the depth direction perpendicular to the vertical direction, the lower end in the vertical direction is positioned in a straight line along the vertical direction relative to the upper end in the vertical direction of the pipe. The aforementioned folded portion on the hot water side is, In a state where water is stagnant in the aforementioned pipeline, the hot water tank has a shape that allows for the accumulation of bubbles generated within it. A drinking water supply device characterized by the following features.

2. The aforementioned hot water tank is An opening that communicates with the aforementioned pipeline, It has a heater positioned below the opening and which electrically heats the water in the hot water tank, The aforementioned folded portion on the hot water side is, The heater causes the bubbles generated by heating the water in the hot water tank to remain. The drinking water supply device according to claim 1.

Images