Common filtration unit for building makeup air and emergency exhaust
AssigneeLockheed Martin Corporation
InventorsRobert Fleming, D. Schooley
Life of this patent
Estimating the term…
Abstract
A building protection system comprises a filtration unit, an air handling unit, an emergency exhaust subsystem, a first damper positioned between the filtration unit and the air handling unit, and a second damper positioned between the emergency exhaust subsystem and the filtration unit. The first damper is selectively opened and the second damper is selectively closed to filter outside air as it enters a building, and the first damper is selectively closed and the second damper is selectively opened to filter inside air as it is exhausted from, the building.
Claims24
A building protection system comprising:
- a filtration unit;
- an air handling unit;
- an emergency exhaust subsystem;
- a first damper positioned between the filtration unit and the air handling unit;
- and
- a second damper positioned between the emergency exhaust subsystem and the filtration unit,
- wherein the first damper is selectively opened and the second damper is selectively closed to filter outside air as it enters a building, and the first damper is selectively closed and the second damper is selectively opened to filter inside air as it is exhausted from the building.
A building protection system comprising:
- a filtration unit;
- an air handling unit;
- an emergency exhaust subsystem;
- a first damper positioned between the filtration unit and the air handling unit;
- a second damper positioned between the emergency exhaust subsystem and the filtration unit;
- an inside sensor adapted to sense nuclear, biological, and chemical (NBC) agents in air inside a building;
- an outside sensor adapted to sense NBC agents in air outside the building;
- and
- a controller coupled to the first damper, the second damper, the inside sensor, and the outside sensor, the controller adapted to open the first damper and close the second damper to filter outside air as it enters the building in response to the outside sensor sensing an NBC agent, and close the first damper and open the second damper to filter inside air as it is exhausted from the building in response to the inside sensor sensing an NBC agent.
A building protection system comprising:
- means for supplying outside air to a building;
- means for exhausting air from inside the building;
- and
- a single means for selectively filtering the outside air supplied to the building and the exhausted air from inside the building of nuclear, biological, and chemical (NBC) agents.
A method for protecting the occupants of a building from a release of a nuclear, biological, or chemical (NBC) agent, the method comprising:
- providing a filtration unit;
- providing an air handling unit;
- providing an emergency exhaust subsystem;
- providing a first damper positioned between the filtration unit and the air handling unit;
- providing a second damper positioned between the emergency exhaust subsystem and the filtration unit;
- sensing a release of an NBC agent in one of inside the building and outside the building;
- opening the first damper and closing the second damper to filter outside air as it enters the building in response to sensing the release of an NBC agent outside the building;
- and
- closing the first damper and opening the second damper to filter inside air as it is exhausted from the building in response to sensing the release of an NBC agent inside the building.
Dependencies are inferred from the claim text.