Mounting method of individually-charged heating pipelines

The invention discloses a mounting method of individually-charged heating pipelines. A double-pipe circular reversed return system is adopted, and the heating pipelines comprise a fixed heating pipeline and a spare heating pipeline. A vertical branch pipe of radiators is externally mounted while a main vertical drain pipe is mounted in a pipe well; drain valves are respectively mounted on main feeding and backwater pipes of all household embedded pipes, and two drain valves are communicated by a tee joint and is communicated with the main vertical drain pipe in the pipe well. The mounting method reduces the crossed times and the time for mounting and the civil engineering of the heating pipelines, improves the working efficiency and the quality of the mounting and the civil engineering of the heating pipelines, reduces on-site melting joints, facilitates the cleaning and the draining of the heating pipelines individually measured, ensures the cleanness of the heating pipelines individually measured and improv