Must manholes and ventilation holes be provided at the skirt of the lower part of the tower?

2022-03-15View Original

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In petroleum refining and chemical plants, there are many towers of various sizes. The lower skirts of these towers are equipped with one or two manholes, access holes, and ventilation holes; it is said that larger skirts even have internal ladders. Are there any guidelines I can refer to regarding the design of skirt bases? If the skirt seat is high, is it mandatory or necessary to install a ladder inside?

Reply #22022-03-15

1. SHT 3098-2011 Code for Design of Petrochemical Columns 2. NBT 47041-2014 Column-Type Vessels 3. HG 20652-1998 Technical Regulations for Column Design

Reply #32022-03-19

Tower vessels are expected to have a long service life; for safety and ease of use, they must be designed in accordance with relevant standards.

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Must manholes and ventilation holes be provided at the skirt of the lower part of the tower?

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