12KW Small Electric Steam Generator for USA Farm

01. Stress maintenance
When the shutdown time is less than one week, pressure maintenance can be selected. That is, before the shutdown of the steam generator, fill the steam-water system with water, keep the residual pressure at (0.05~0.1) Pa, and keep the temperature of the pot water above 100 degrees to prevent air from entering the furnace.
Maintenance measures: heating by steam from the adjacent furnace, or the furnace is heated on time to ensure the working pressure and temperature of the steam generator furnace.
02. Wet maintenance
When the steam generator furnace body is out of use for less than one month, wet maintenance can be selected. Wet maintenance: fill the soda water system of the furnace body with soft water full of lye, leaving no steam space. The aqueous solution with moderate alkalinity will form a stable oxide film with the metal surface to avoid corrosion.
Maintenance measures: In the wet maintenance process, use a low-fire oven on time to keep the outside of the heating surface dry. Turn on the pump on time to circulate the water and add lye appropriately.
03. Dry maintenance
When the steam generator furnace body is out of use for a long time, dry maintenance can be selected. Dry maintenance refers to the method of putting desiccant in the steam generator pot and furnace body for protection.
Maintenance measures: After the furnace is stopped, drain the pot water, use the residual temperature of the furnace body to dry the furnace body, clean up the dirt and residue in the pot on time, put the tray with desiccant into the drum and on the grate, and turn off all Valves, manholes, and handhole doors, and the desiccant that fails to be replaced on time.
04. Inflatable maintenance
Inflatable maintenance is used for long-term shutdown maintenance. After the steam generator is shut down, it cannot be drained, so that the water level is kept at the high water level, and the furnace body is deoxidized by proper treatment, and then the steam generator pot water is blocked from the outside world.

Enter nitrogen or ammonia gas to keep the working pressure at (0.2~0.3) Pa after inflation. Nitrogen can thus be converted into nitrogen oxides with oxygen so that oxygen cannot come into contact with the steel plate.

Maintenance measures: Ammonia dissolves in water to make the water alkaline, which can effectively prevent oxygen corrosion, so nitrogen and amino are good preservatives. The inflation maintenance effect is better, and it is guaranteed that the soda water system of the boiler body has good tightness.