Under which of the following conditions should a transition section be provided at the top of the skirt?
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Under which of the following conditions should a transition section be provided at the top of the skirt? a. The design temperature is 350 degrees or higher； b. The tower body is made of low-temperature steel ； c. The tower body is made of chromium-molybdenum steel or high-alloy steel ； d. The tower equipment requires overall heat treatment.
This post was last edited by Rose from YPES on 2015-8-10 at 11:04. Is it a choice? If so, I choose that a transition section should be provided at the top of the skirt when the following conditions are met. a. Design temperature greater than or equal to 350 degrees ； b. The tower body is made of low-temperature steel ； c. The tower body is made of chromium-molybdenum steel or high-alloy steel ； d. The tower equipment requires overall heat treatment
Which standard specifies that the design temperature should be 350 degrees or higher?
Transitional sections need to be set for a, b, c, and d above.
Similar provisions are found in both the HG20652 Technical Specifications for Tower Design and the SH3098 Code for Design of Petrochemical Towers.
Hello, I have a question: regarding the need for overall heat treatment of D-tower equipment, which standards specify where transition sections should be installed?
Generally, the materials used for skirt casing cylinders are Q345R or Q235B, etc. For example, towers for low-temperature steel that require heat treatment need to have transition sections, and Cr-Mo steel equipment that requires heat treatment also needs such transition sections. There are no standard requirements. The options are just a bit repetitive.