Insulation of dead spaces
Dead spaces located in front of the boiler wall or roof containing installation components, are enclosed with cladding and then the insulation is mounted. Use a non-scaling sheet with a minimum thickness of 1 mm. Fasten the sheets to appropriate, structurally measured substructures so that the thermal expansions can be accommodated. The insulation is secured to the dead space sheeting with pins as described above.
An example of dead space insulation follows.
Support construction and spacer
There are various options available to attach support constructions and spacers to boilers. They can be mounted directly onto the boiler, to auxiliary constructions, to buckstays (girders), cross bars or handles. When selecting the support construction and spacer and the corresponding attachment option,a design matching is needed between the insulator and the plant manufacturer. When power plant components with temperatures above 660 。F (350 。C), use high temperature or fireproof steel.
Cladding
For power plant components with large surface areas, such as utility steam generators, profiled
sheets are used as cladding material for structural, economic and design reasons.The open spans, overlaps and connections correspond to the profile. Refer to the instructions of the relevant profiled sheet manufacturer. When selecting a suitable cladding material, consider the following parameters: corrosion, temperature resistance, type of construction and architectural design. The contractor and customer should consult about this matter. Galvanized steel sheeting is generally used for the insulation of utility steam generators,which are usually located inside buildings.