Sensor probe for detecting leaks in electrolytic cell, bath electrode on tubular cardboard carrier

摘要

A bath electrode (6) used in the detection of leaks in an electrolytic cell for producing aluminium is mounted on tubular carrier (1). The tube (1) may be made of an organic material such as cardboard. A connection piece (2) is mounted on the immersion end and is affixed using refractory material (3). The bath electrode (6) is connected to the connection piece (2) at contact (5) and signal lines running along the interior of the tube (1) to sensing equipment connect at contact (4). The immersion end of the tubular carrier (1) is closed with cement (7). A flammable protective sheath may surround the part of the electrode (6) outside the tube (1). The tubular carrier (1) may also carry an electrochemical measurement cell, and/or a temperature sensing-element.