| 摘要 |
A device for heating and/or vaporizing a fluid is provided. The device comprises a heat conductive inner conduit defining a fluid flow pathway. An electrically powered heating element is arranged to surround said inner conduit whereby heat energy from the heating element heats fluid passing through the fluid flow pathway. A casing is provided to sealedly surround the heating element. An exterior surface of the casing is in communication with a space into which heated fluid or vapour is emitted from the outlet of the inner conduit. The casing is heat conductive such that heat energy is received from the heating element heats fluid within said space. Fluid such as water can be efficiently heated by passing it through the fluid flow pathway and having it contact the exterior surface of the casing for double heating. Also, by restricting water flow through the fluid flow pathway can result in easy generation of steam. By having a fluid flow pathway through the heating element, this results in more efficient heating of water and saving in energy. Furthermore, it maintains the operating temperature of the heating element at a lower range thereby the life of the heating element is extended. |
