| 摘要 |
<p>The present invention relates to a purging apparatus for welding a pipe capable of combining a blocking layer consisting of a plurality of pieces in the form of a circular plate and inserting the blocking layer inside a pipe, and easily drawing a blocking layer from a pipe by separating the blocking layer inserted into the pipe in the form of a circular plate into pieces by pulling a connection line after completing welding operation. According to an embodiment of the present invention, the purging apparatus for welding a pipe capable of injecting argon or nitrogen gas by sealing the inside of a pipe in order to prevent oxidation of a pipe inner wall in pipe welding comprises: a plurality of sponges separated into a plurality of pieces respectively, and formed in the form of a circle when combined to seal the inside of the pipe by being inserted into the pipe, and having a through hole respectively; and a connection line installed to be organically connected as passing through the through hole of a plurality of sponges, and to draw a plurality of sponges inserted inside the pipe.</p> |
