Spiral welded steel pipe with spiral reinforcing ring plate and edge rolling equipment

The utility model discloses a spiral welded steel pipe with a spiral reinforcing ring plate. The spiral welded steel pipe comprises a main steel pipe body and the reinforcing ring plate which is spirally fixed to the outer wall of the main steel pipe body in a surrounding mode. The main body steel pipe is formed by spirally rolling and welding a main body steel belt; the reinforcing ring plate is formed by a reinforcing plate which is fixed on the outer surface of the main body steel belt and extends in the same direction as the main body steel belt and the main body steel belt in a spiral rolling manner; the utility model further discloses edge rolling equipment of the steel pipe. The annular rigidity of the main steel pipe can be improved through the design of the reinforcing annular plates, the wall of the steel pipe can be thinned, and cost is saved; the reinforcing ring plate and the main steel pipe are machined on the same production line, and the production efficiency is high. 本实用新型公开了一种带有螺旋加强环板的螺旋焊接钢管