As an important chemical raw material and refrigerant, the stability of ammonia pipeline transportation system is directly related to production safety and efficiency. In low temperature environment, ammonia is easy to liquefy, water in the pipeline freezes or forms ammonia corrosion, which may lead to blockage, leakage and other risks. With its precise temperature control, explosion-proof and corrosion-resistant characteristics, the electric heating system has become a more suitable solution for antifreeze insulation of ammonia pipelines.

Why does ammonia pipeline need electric heating system insulation?
Prevent liquid ammonia condensation and ice blockage: The boiling point of ammonia at standard atmospheric pressure is -33.34°C. When the pipeline temperature is lower than this value, gaseous ammonia will liquefy into liquid ammonia, causing flow meter failure and valve blockage. Electric heating maintains the pipeline temperature above 0°C to ensure that ammonia is transported stably in gaseous form.
Inhibit ammonia corrosion and freezing: If there is water in the pipeline, it will react with ammonia to form ammonia water at low temperature, and the freezing point will rise. However, ammonia water is highly corrosive and will accelerate the corrosion of pipelines and welds. Electric heating eliminates condensed water through temperature control and slows down the corrosion process.
Ensure the stability of the emergency system: When ammonia leaks, the sprinkler system needs to start quickly to dilute the concentration. If the fire water pipe freezes, it will delay the disposal and may cause an accident. Electric heating ensures that firefighting and pressure relief facilities are available at any time.
Adapt to harsh environments and energy-saving needs: Winter temperatures in the north can drop to -40°C, and the electric heating system can meet the requirements with relatively high thermal efficiency.
Antifreeze and heat preservation of ammonia pipelines are not only related to production continuity, but also the core requirements of safety and compliance. Through material innovation and intelligent control, the electric heating system has built a protection system for ammonia transportation from antifreeze, anticorrosion to emergency linkage.