VERTICAL ELECTRIC WATER HEATER

摘要

Disclosed is a vertical electric water heater, which mainly consists of a liner and a heating device arranged in the liner. The heating device comprises a heat generation cover of which one end is provided with an opening, and at least one electric heating pipe sleeved in an inner chamber of the heat generation cover and closely fitted with the inner wall of the heat generation cover, with the heat generation cover being located on a vertical centre line of the liner. Further, the vertical centre line of the liner coincides with the centre line of the heat generation cover, and the electric heating pipes are uniformly distributed around the centre line of the heat generation cover. The heating device is located on the vertical centre line of the liner, so that an isothermal body which uses the heating device as a centre can be formed, thereby enabling the temperature differences among various mass points in water to be substantially reduced, so that the temperature uniformity of water in the liner is good; moreover, the arranged heat generation cover enables heat exchange area between the electric heating pipe and water to be increased, so that the temperature uniformity of water in the liner is further guaranteed, and the deposit formed in unit area on the heat exchange surface is reduced; in addition, the electric heating pipe is simple and convenient to replace and disassemble because of being sleeved in the heat generation cover.