| 摘要 |
Method and device to control the steam production in a small steam generator comprising a heating device in the form of electric tubular heating elements (51,52) in a water tank (1) which is filled by way of an external refill tube (2) provided with a water seal, preventing steam from escaping from the refill tube when steam is produced, whereby a means (30) is provided to sense the position of the upper surface of the water column present in the water seal, the column being lifted by the steam produced. A control circuit (25) in response to detection of the upper surface disconnects the electric supply to said tubular heating elements such that the steam pressure decreases and after a certain time delay the supply to said element is reconnected in a periodical sequence so that optimum steam production is obtained. |
