Steam pipeline purging method?
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This post was last edited by erpeng2005 on 2019-11-8 at 14:19. What method should be used to purge this steam pipeline? Should it be a sequential purge from a single point, or a mixed purge from multiple points? Expert, please suggest a solution: The handshake boiler can produce approximately 310 t/h of qualified steam. How should the AB1\AB2\AC\AD\AE\AF\AG pipelines be purged?
Control it with valves to blow in sections.
Blow the main pipeline first, then the branches; however, it is necessary to calculate the purging flow rate and interval time to ensure effective purging
If we consider making better use of the 410t of steam produced by my boiler and reducing venting, is it possible to clean both pipelines simultaneously? Will this affect the cleaning efficiency?
To calculate the flow rate, it’s fine as long as the flow rate is sufficient!
It is recommended to divide it into sections and blow out each section separately to ensure an effective cleaning effect； Personally, I think it’s fine to waste a bit of material during the blowing process; the important thing is to ensure the best possible cleaning effect
Prioritize one section at a time; segmented purging is the principle. Therefore, based on the pipeline diagram you provided, the following recommendations are given: 1) A-B1/B2 2) A-G 3) A-F/E/D/C
Thank you for the suggestion. If I take into account the steam balance during purging, and perform simultaneous flushing of the A--G and A--C pipes, how should I calculate my steam flow rate?
Simply put, the cross-sections of the two pipes can be treated as that of one pipe, allowing the flow rate to be calculated easily!