Reason why the pipe from the outlet of the ammonia synthesis tower to the first section of the waste heat boiler is made curved
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Reason why the pipe from the outlet of the ammonia synthesis tower to the first section of the waste heat boiler is made curved
Results of stress calculation for high-temperature pipelines designed as flexible pipelines.
Mainly considering thermal expansion and contraction, spring hangers are used.
I think it’s mainly due to thermal expansion and contraction, but I suppose stress on the first floor also plays a role. I’m not an expert, so I don’t understand much about it.
The high-temperature pipes are designed with this in mind: the temperature of this section of pipe is high, resulting in significant changes due to thermal expansion and contraction. In general design, elbows with a certain bending diameter are required in the three vertical directions, along with a specified length of straight section.
Based on the principle of thermal expansion and contraction of pipes! All long-distance pipes and those with temperature differences must have bends to prevent deformation of the pipes, which could cause the flange connections to separate and disrupt production! This is essential for chemical engineering design, and there are also issues that need to be taken into account in northern regions or areas with large temperature differences!
It is primarily a flexible design aimed at eliminating the thermal stress generated in pipes at high temperatures.
With high temperatures and high pressures, a radius elbow is used to reduce the temperature difference stress to an acceptable level.
Bending the pipe is mainly to balance stresses. Especially for pipes under high temperature and pressure, the straight section cannot be too long. After calculation, the pipes are bent at regular intervals to balance the stresses. Moreover, it allows for easy condensate drainage at the lower point of the elbow.