Range hood with liquid filter
AssigneeAir Dynamics Industrial Systems Corporation
InventorsDaniel P Lehman, Daniel A Lehman
Life of this patent
Estimating the term…
Abstract
A range hood for a kitchen range or other similar appliance is disclosed. The range hood is adapted to be coupled to a blower to draw the contaminated effluent stream from the range into the hood. The effluent stream is drawn through a substantially horizontal perforated liquid support or impingement tray that is filled with a working liquid, and is then passed through a high-efficiency mist eliminator. The range hood offers a substantially straight airflow path from a point just inside the inlet to the outlet. The range hood also has a low profile, and offers direct access to its interior components for easy inspection and cleaning.
Claims20
A range hood, comprising:
- an inlet and an outlet, the inlet being adapted to accept a contaminated effluent stream and the outlet being adapted to be connected directly or indirectly to a blower such that in an operational condition of the range hood, a pressure drop is maintained across the range hood from inlet to outlet, thus drawing the effluent stream from the inlet toward the outlet, the inlet and the outlet being arranged relative to one another such that a substantially straight airflow path is provided for the effluent stream from a point just inside the inlet to the outlet;
- a substantially horizontally-extending liquid support provided in the airflow path, the liquid support being constructed and arranged to support liquid and having a plurality of perforations such that, in the operational condition, liquid is supported on and retained by the liquid support at least in part by the pressure drop across the range hood, the liquid support being provided in the airflow path such that, in the operational condition, the contaminated effluent stream flows through the liquid support and any liquid supported thereon as it flows along the airflow path;
- and
- a sump constructed and adapted to hold liquid, the sump being arranged relative to the liquid support such that liquid from the liquid support can drain into the sump.
A range hood, comprising:
- an inlet and an outlet, the inlet being adapted to accept a contaminated effluent stream and the outlet being adapted to be connected directly or indirectly to a blower such that in an operational condition of the range hood, a pressure drop is maintained across the range hood from inlet to outlet, thus drawing the effluent stream from the inlet toward the outlet, the inlet and the outlet being arranged relative to one another such that a substantially straight airflow path is provided for the effluent stream from a point just inside the inlet to the outlet;
- a substantially horizontally-extending liquid support provided in the airflow path, the liquid support being constructed and arranged to support liquid and having a plurality of perforations such that, in the operational condition, liquid is supported on and retained by the liquid support at least in part by the pressure drop across the range hood, the liquid support being provided in the airflow path such that, in the operational condition, the contaminated effluent stream flows through the liquid support and any liquid supported thereon as it flows along the airflow path;
- a mist eliminator arranged in the airflow path between the liquid support and the outlet;
- a sump constructed and adapted to hold liquid, the sump being arranged relative to the liquid support such that liquid from the liquid support can drain into the sump, the sump including
- a main sump compartment,
- a sump drain compartment constructed and adapted to be connected to a drain, and
- a partition separating the main sump compartment and the sump drain compartment,
- the arrangement of the main sump compartment and the sump drain compartment being such that contaminants can be removed from the sump by selectively overflowing the sump into the sump drain compartment.
A ship, comprising:
- a ship hull;
- one or more effluent-generating appliances installed within the ship hull;
- and
- a range hood installed within the hull in operational association with the one or more cooking appliances, the range hood including
- an inlet and an outlet, the inlet being adapted to accept a contaminated effluent stream and the outlet being adapted to be connected directly or indirectly to a blower such that in an operational condition of the range hood, a pressure drop is maintained across the range hood from inlet to outlet, thus drawing the effluent stream from the inlet toward the outlet, the inlet and the outlet being arranged relative to one another such that a substantially straight airflow path is provided for the effluent stream from a point just inside the inlet to the outlet,
- a substantially horizontally-extending liquid support provided in the airflow path, the liquid support being constructed and arranged to support liquid and having a plurality of perforations such that, in the operational condition, liquid is supported on and retained by the liquid support at least in part by the pressure drop across the range hood, the liquid support being provided in the airflow path such that, in the operational condition, the contaminated effluent stream flows through the liquid support and any liquid supported thereon as it flows along the airflow path, the liquid support also including a number of baffles attached to the liquid support and extending upwardly therefrom, the baffles being arranged so as to divide and enclose a plurality of individual liquid areas along the liquid support, the height and arrangement of the baffles being such that liquid will be retained in the individual areas of the liquid support despite movement of the ship;
- and
- a sump constructed and adapted to hold liquid, the sump being arranged relative to the liquid support such that liquid from the liquid support can drain into the sump.
Dependencies are inferred from the claim text.