Boiler Maintenance Method: After the boiler is shut down, drain the boiler water and thoroughly clean the internal dirt. Rinse it clean, then dry the furnace with low heat (be careful not to use high heat). Next, place blocks of unslaked lime, 10-30mm in diameter, in separate trays inside the boiler drum, ensuring they do not come into contact with the metal. The weight of the unslaked lime should be calculated at 8 kilograms per cubic meter of drum volume. Close all manholes, handholes, and pipeline valves. Check every three months; if the unslaked lime breaks down into a powdery state, it should be replaced immediately. When restarting the boiler, replace the unslaked lime.

Boiler Maintenance Method: After the boiler is shut down, release the boiler water and thoroughly clean the internal dirt. Rinse it clean, then refill it with treated water to the full capacity. Heat the boiler water to 100°C to expel gases from the water, and then close all valves. This moisture preservation method should not be used in cold climates to prevent the boiler water from freezing and damaging the boiler.