A special type of insulation, namely mineral wool-based spray insulation is an additional option. Due to the complex housing contours of steam turbines, this insulation type can be used alongside insulation with textile mattresses for steam turbines due to their complex housing contours.
A cavity made of expanded metal is inserted equivalent to the insulation thickness previously calculated by us for the area to be insulated. The insulation is then blown into the cavity and dried by the turbine’s own heat emissions. Finally the system is coated with external protection made of mineral heat plaster, providing an oil and water-repellent protection.
The advantages of this insulation are the long durability and very good insulating effect. This system is well proven, in the context of the short maintenance schedules in power plant retrofits.