| 摘要 |
The water heating device comprises a tubular heating body (1) including a closed, liquid-tight jacket with first and second outer coats (6, 8), a latent heat storage medium (4) incorporated between the first and second outer coats and a primary heating element (2) incorporated into the jacket between the first and second outer coats for heating the latent heat storage medium, and a flange for fastening the heating body. The jacket has a first- and/or second jacket surface for exchanging heat between the heating body and the water. The flange has a connecting unit and a fastening unit. The water heating device comprises a tubular heating body (1) including a closed, liquid-tight jacket with first and second outer coats (6, 8), a latent heat storage medium (4) incorporated between the first and second outer coats and a primary heating element (2) incorporated into the jacket between the first and second outer coats for heating the latent heat storage medium, and a flange for fastening the heating body. The jacket has a first- and/or second jacket surface for exchanging heat between the heating body and the water. The flange has a unit for functionally connecting the primary heating element with an electrical energy source, and a unit for fastening the heating device with a water container. The outer coats and the jacket surfaces are preprocessed to contact with the water for exchanging heat. The heating body is implemented as heating body profile and/or the first and second jacket surfaces have an average distance to each other, where a square-root of the size of the first and/or second jacket surfaces of the heating body is twenty times greater than the average distance of the first and second jacket surfaces. Several heating bodies and/or several heating body sections are arranged to each other, so that they form an intermediate space to flow the water through the intermediate space. The heating device is winded with several coils around a longitudinal axis in a roll form, where the individual coils are formed as layers distanced to each other, so that the water flows between the layers. The water flows between the tubular heating bodies. The first and/or second outer coat is made of plastic. The latent heat storage medium comprises paraffin, and is displaced with materials such as copper powder having good thermal conductivity. The jacket is sub-divided into chambers receiving a part of the latent heat storage medium under using welds for connecting the first and second outer coats in the area of the welds. The primary heating element has holes, is formed as an electrical heating foil, and is incorporated into the jacket in a separate chamber and/or directly contacts with the latent heat storage medium in normal conditions of use. The first and second outer coats are welded with one another through the holes. The jacket is sub-divided into tube-shaped receiving sections for receiving the latent heat storage medium. The receiving sections have an inner width of 30 mm in a flat unfilled state, and are delimited against each other by the welds. |
