Boiler Ducting Design - Doosan Babcock

Doosan Babcock has extensive experience in the mechanical design of the flue and duct systems for boiler plant. The air or gas pressure envelope is designed to withstand the imposed pressure differentials and to respond satisfactorily to gas pulsation and transmitted vibration produced by rotating plant. This extends to and includes the suspension and restraining devices attached to the cold building structure, but does not include this structure. Expansion joint duties are specified.

There are no national or international codes covering the sort of structures concerned, and so techniques from structural building codes and in-house methods are used to produce a safe and serviceable product.

The services provided cover:

Design of stiffened duct walls and external and internal bracing
Calculating the weights of the flue and duct systems and their imposed loads
Calculating thermal expansions and suitably dividing up the ducts into separately supported and braced sections
Design of sling systems and other supports, braces and guides
Specification of design duties for expansion joints
Production of technical specifications for purchase of relevant materials and out-sourced design and manufacture
Production or review of relevant parts of erection and operating instructions

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