What is the purpose of the apron plates?

The purpose of apron plates is to form an annular passageway for the steam and water mixture from the generating tubes to the separators. This is crucial in boiler operations where the efficiency of steam generation is paramount. By creating a designed pathway, apron plates help facilitate the movement of the steam-water mixture, which is necessary for effective separation of steam from water.

This separation is important in ensuring that only dry steam enters the steam system, which maximizes the efficiency of the steam cycle and reduces the risk of equipment damage caused by water carryover. The apron plates thus play a vital role in the overall functionality and performance of the boiler system, ensuring that operations remain smooth and efficient.