Flow rate control for steam purging?
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I have a question for everyone. According to the standards, when using steam for purging steam pipelines, the flow rate must be greater than 30 m/s. So how do you control this flow rate during the purging process? How to ensure a flow rate > 30 m/S? Thank you!
The principle of pipeline steam purging relies on the erosive effect of high-speed steam flow and its thermal properties to remove the high-temperature oxides, calcium compounds, and sand particles remaining in the main steam pipes, thereby ensuring the quality of the steam in the future. There are two main factors at play here: the kinetic energy of the vapor flow and the thermal effects that can cause it to peel off. Generally, to achieve better results, it is necessary to stop the purging process, cool the pipeline for a while, and then resume purging.