Method of gas blanketing a boiler
OwnerArne Lindberginventor
Life of this patent
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Abstract
A method of blanketing a boiler with nitrogen to reduce the level of oxygen dissolved in water in the boiler. The method includes the steps of creating a nitrogen blanket in the boiler, then preserving the nitrogen blanket during the subsequent filling of the boiler, and providing sufficient contact in the boiler between the water and the nitrogen to maximize the reduction of the level of oxygen dissolved in the water.
Claims21
A method of blanketing a boiler with a first gas adapted to reduce the level of a second gas dissolved in a liquid in the boiler, the boiler including a vent, said method comprising the steps of:
- a. creating a gas blanket in the boiler, said gas blanket being comprised of said first gas;
- b. preserving said gas blanket in the boiler during the subsequent filling of the boiler with the liquid;
- and
- c. providing sufficient contact in the boiler between the liquid and the first gas to allow said first gas to reduce the level of said dissolved second gas in the liquid.
A method of blanketing a boiler unit with a gas adapted to reduce the level of oxygen dissolved in water in the boiler unit, the boiler unit comprising a water heater including a vent, a water heater storage tank connected to the water heater, and a boiler including a boiler drum having a vent, the boiler drum being connected to a superheater having a vent and to the water heater storage tank, said method comprising the steps of:
- a. creating a gas blanket in the boiler and the water heater, said gas blanket being comprised of said gas;
- b. preserving said gas blanket in the boiler and the water heater during the subsequent filling of the boiler, said boiler being filled by filling the boiler drum;
- and
- c. providing sufficient contact in the boiler drum between the water and said gas during the filling of the boiler.
Dependencies are inferred from the claim text.