Air-cleaning apparatus

Patent · Tue Aug 18 00:00:00 EDT 1981

OSTI ID:6114870

Howard, A G

An air-cleaning, heat-exchange apparatus includes a main housing portion connected by means of an air inlet fan to the kitchen exhaust stack of a restaurant. The apparatus includes a plurality of heat exchangers through which a heat-absorptive fluid is circulated, simultaneously, by means of a suitable fluid pump. These heat exchangers absorb heat from the hot exhaust gas, out of the exhaust stack of the restaurant, which flows over and through these heat exchangers and transfers this heat to the circulating fluid which communicates with remote heat exchangers. These remote heat exchangers further transfer this heat to a stream of air, such as that from a cold-air return duct for supplementing the conventional heating system of the restaurant. Due to the fact that such hot exhaust gas is heavily grease laden , grease will be deposited on virtually all internal surfaces of the apparatus which this exhaust gas contacts. Consequently, means are provided for spraying these contacted internal surfaces , as well as the hot exhaust gas itself, with a detergent solution in which the grease is soluble, thereby removing grease buildup from these internal surfaces.

• Assignee: IFI; EDB-82-004553
• Patent Number(s): US 4284421
• Application Number: TRN: 81-018428
• OSTI ID: 6114870
• Resource Relation: Patent File Date: Filed date 15 Feb 1980; Other Information: PAT-APPL-121961
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
AIR CLEANING
DESIGN
HEAT EXCHANGERS
RESTAURANTS
AIR POLLUTION CONTROL
DETERGENTS
EXHAUST GASES
FLUID FLOW
GREASES
INDOOR AIR POLLUTION
PUMPS
STACKS
ADDITIVES
AIR POLLUTION
BUILDINGS
CLEANING
COMMERCIAL BUILDINGS
CONTROL
EMULSIFIERS
FLUIDS
GASEOUS WASTES
GASES
LUBRICANTS
POLLUTION
POLLUTION CONTROL
SURFACTANTS
WASTES
WETTING AGENTS
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)