| 摘要 |
The present invention relates to a midnight electric boiler including a heat storage tank and, more specifically, to a dual piping device for a midnight electric boiler capable of additionally heating water, stored in the heat storage tank, while using two outlets and collection holes, which are formed on the heat storage tank. The present invention is capable of increasing the temperature of heating water, stored in the heat storage tank, without the additional installation of the collection holes and outlets of the heat storage tank. An inlet of a T-shaped connector is closed by screwing a dual piping connector but a through passage is formed inside the dual piping connector. The through passage of the dual piping connector is closed by screwing the dual piping inside the T-shaped connector. The T-shaped connector is connected to the heat storage tank through a nipple to insert the dual piping through the outlets of the heat storage tank. Another T-shaped connector, formed in the same way, is connected to the collection holes of the heat storage tank through the nipple, and then is connected to piping for heating through an opened inlet of the T-shaped connector. An L-shaped connector is screwed and fixed with a front end of the dual piping connector, and then an outer boiler and a circulation pump are connected between the L-shaped connector and the dual piping connector. |
