Systems and methods for heat recovery
AssigneeAqua Filters, LLC
InventorsRobert H. Prasser, Terry L. McCabe, Jr., Gregory R. Downey, Michael L. Watz, Jr.
Life of this patent
Estimating the term…
Abstract
A filter unit heat exchanger is provided that may include a housing substantially surrounding a heat exchange assembly. Provided through the housing are one or more tortuous fluid flow paths used to direct airflow therethrough around portions of the heat exchange assembly for efficient operation. The tortuous path(s) may be provided by one or more nozzle openings on an input side of the housing and one or more diffuser openings on an output side of the housing, where the nozzle openings and diffuser openings are offset to cause desired airflow deflection. The filter unit may include desired symmetries to improve manufacturability and/or installation.
Claims19
A filter unit comprising:
- a housing including a cavity;
- a heat exchanger disposed substantially within the cavity;
- an entrance opening provided through the housing on an upstream side of the heat exchanger;
- a first fin associated with a first lateral edge of the entrance opening;
- a second fin spaced from the first fin, the second fin associated with a second lateral edge of the entrance opening;
- a third fin positioned between the first fin and the second fin;
- an exit opening provided through the housing on a downstream side of the heat exchanger, the downstream side being oppositely disposed of the upstream side;
- a first baffle associated with a first lateral edge of the exit opening;
- and
- a second baffle spaced from the first baffle, the second baffle associated with a second lateral edge of the exit opening.
A system comprising:
- a cooking surface including a heat source;
- an exhaust system that provides a gas flow path for gasses emanating from the exhaust system;
- a filter unit disposed in the gas flow path, the filter unit comprising:
- a housing including a cavity;
- a first heat exchanger disposed substantially within the cavity, the first heat exchanger including a fluid input port and a fluid output port;
- an entrance opening provided through the housing on an upstream side of the first heat exchanger;
- a first fin associated with a first lateral edge of the entrance opening;
- a second fin spaced from the first fin, the second fin associated with a second lateral edge of the entrance opening;
- an exit opening provided through the housing on a downstream side of the first heat exchanger, the downstream side being oppositely disposed of the upstream side;
- a first baffle associated with a first lateral edge of the exit opening;
- a second baffle spaced from the first baffle, the second baffle associated with a second lateral edge of the exit opening;
- wherein the first and second baffles are aligned with the entrance opening, such that when the gasses are drawn through the entrance opening and across the first heat exchanger, the first and second baffles redirect the gasses towards the first heat exchanger before the gasses can exit the housing through the exit opening;
- a fluid supply coupled to the input port;
- a drain line coupled to the output port and to at least one of a storage tank and a second heat exchanger.
Dependencies are inferred from the claim text.