Treatment of heat tracing pipelines in summer
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Colleagues, spring is approaching and the flowers will soon be in bloom. The heat tracing systems in our installations, especially those that use water for heating, need to be turned off. Please share how you handle the heat tracing systems in your own installations Is the heating water supplied continuously, or is it turned off? If it is turned off, does the water in each heating station and pipeline need to be completely drained? I feel that after the cleaning is complete, the corrosion of the pipelines is severe, and leaks occur easily in winter.
After the water has been completely drained, nitrogen is introduced as a protective measure to prevent rusting...
After the water has drained, just blow it dry with compressed air
After the water is drained, it is cleaned and dried using unpurified air; nitrogen is then introduced into the pipeline to maintain a slight positive pressure for protection.
There is no need to return it; simply clean each heat tracing element thoroughly before putting it back into use.
The management here is rather poor; in the summer, they don’t even release water. Just stay trapped inside.
The best approach is: drain completely, dry, and seal with nitrogen. But generally, it’s enough to drain the water and dry it out. Blow it out once before reactivating; otherwise, rust can easily clog devices such as the water strainer that follow.
Thank you to all my colleagues. It’s a new installation; last year we only purified the water without drying it, and as a result, when it was put into use this year, there was a lot of rust, and there were also many leaks during winter.
It’s better to have water protection than to turn it off; for example, with the heating system in a home, there’s generally no need to drain the water.
There should be no need to drain the water; after adding scale inhibitors and corrosion inhibitors and running the system for a while before stopping the circulation, there is no need to drain anything. If heat tracing is required, simply start the circulation again.
Our company first drains the water and then purges it with air