| 摘要 |
The present invention relates to a purge concentration measuring device for welding operations, allowing easy checking of the optimum purge concentration during welding operations after performing a purge operation for welding quality reliability of welded pipes. The purge concentration measuring device for welding operations according to the present invention comprises: a transmitter (130) which receives an oxygen concentration measurement from an indicator, compares the measurement with a preset oxygen concentration value and transmits a warning signal if the oxygen concentration value is greater than the preset oxygen concentration value; and a receiver (150) which receives the warning signal of the transmitter (130) and lights a receiver warning lamp(151). The present invention allows a welding operator to check the oxygen concentration inside a welded pipe through the receiver or a beacon without having to interrupt the welding operation to check the oxygen concentration value inside the welded pipe through an indicator, thus welding operations can be performed continuously. |
