Questions regarding steam long-distance transmission design
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There is a project involving long-distance steam pipelines: the inlet steam temperature is 300 degrees, the pressure is 1.5 MPa, the flow rate is 1.8 tons per hour, and the transmission distance is 3000 meters. I would like to know how the insulation should be designed, how steam heat loss can be controlled, and also how the expansion bends should be designed Is it necessary to add expansion joints? What type of expansion joint should be used, and how long should one be installed?
For this flow rate, at a distance of 3000m, the design must take into account the pressure required by the steam user.
It depends on how high the required pressure drop is. If a low pressure drop is sufficient, DN80 will work; if a higher pressure drop is acceptable, then DN65 is suitable.
Due to the long transmission distance, it is recommended to use 40mm rock wool combined with colored steel plates for insulation; hydrophobic stations should be installed every 100 meters. Expansion joints are typically made using expansion elbows or omega elbows. Although expansion joints are simple in design, they are prone to problems.
Due to the long transmission distance, it is recommended to use 40mm rock wool combined with colored steel plates for insulation; hydrophobic stations should be installed every 100 meters. Expansion joints are typically made using expansion elbows or omega elbows. Although expansion joints are simple in design, they are prone to problems.
Due to the long transmission distance, it is recommended to use 40mm rock wool combined with colored steel plates for insulation; hydrophobic stations should be installed every 100 meters. Expansion joints are typically made using expansion elbows or omega elbows. Although expansion joints are simple in design, they are prone to problems.
Due to the long transmission distance, it is recommended to use 40mm rock wool combined with colored steel plates for insulation; hydrophobic stations should be installed every 100 meters. Expansion joints are typically made using expansion elbows or omega elbows. Although expansion joints are simple in design, they are prone to problems
What was said upstairs is correct; it’s better for rock wool to have 4-5 layers