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Heating system for a sulfur trioxide conditioning plant
The tanks and pipelines in a conditioning plant for sulfur trioxide (SO3) need to be heated with steam. To do so, the heating temperature must be kept within a narrow range. The pressure of superheated steam is reduced in a desuperheater with liquid level control and electropneumatic pressure control to reach saturated steam temperature. The produced hot condensate is routed to a collector and cooled by the ambient air. Booster pumps are used to supply the cooled condensate to the pressure vessel of the desuperheater as a cooling medium. To protect the plant, a safety pressure limiter is installed at the steam inlet and a safety temperature limiter is fitted at the steam outlet. |
