RETROFIT APPARATUS AND METHOD FOR GAS LINE MOISTURE DETECTION AND REMOVAL

摘要

A method for retrofitting an existing natural gas line drainage point with a moisture detection capability includes inserting a conducting rod in a previously installed drainage pipe in the drainage point, where a lower extremity of the rod may be covered with an insulating material, exposing a section of the rod above the insulating material, where a lowest point of the section indicates a minimum level of moisture in the drainage point for which status reporting is required, attaching a diagnostic unit to both the drainage pipe and the conducting rod via electric leads, the unit including means to provide electric current and diagnose at least one of an electric short and an abrupt change in conductivity, and attaching means for transmitting an indication regarding a status for the drainage point.