How to purge small boilers and long-distance steam pipelines?
Thread Content
The last edit to this post was made by dmz329227 on 2017-5-9 at 09:31. As the title indicates, there is a 12-ton waste heat boiler, with external DN150 pipes that are 1600 meters long; these pipes include expansion bends, drain points, and other necessary components； Due to the extremely long distance, based on experience, with a 12-ton boiler and DN150 pipes, purging over a distance of around 100 meters can only be maintained for 2–3 minutes; by that point the pressure in the steam drum has already dropped to its limit, and the water level is also extremely low ； With such a long pipe, it’s very likely that the air will run out as soon as it starts to flow at the end, forcing one to hold their breath again. Does anyone have any good tips on how to purge this pipe? Thanks for the advice!
How should these 1600m of pipeline be divided into sections for purging? Start from the beginning, and only proceed blowing once it meets the standards? Is there no other good way?