Process for improving an existing and previously operated air conditioning system
a technology for air conditioning systems and air filters, applied in lighting and heating apparatus, heating types, domestic applications, etc., can solve the problems of carbon filters, carbon filters, odors and pollutants in gas or vapor form, and require a relatively long contact time to be effective, so as to achieve easy installation, eliminate air restrictions, and high capacity carbon
Inactive Publication Date: 2017-06-29
CUNNINGHAM JAMES
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AI Technical Summary
Benefits of technology
The system effectively removes indoor air pollutants and odors, extending the life of the carbon filter and ensuring clean, healthy air with minimal installation time and labor, requiring filter replacement every six months.
Problems solved by technology
Conventional filters, including fiber filters and electrostatic filters, although effective in removal of airborne particulate matter, are ineffective in the removal of odors and pollutants in gas or vapor form.
Carbon filters are capable of adsorption of gas and vapor, but require a relatively long contact time to be effective.
Therefore, the amount of carbon in these filters is limited in order to minimize restriction of air flow.
The limitation on the amount of carbon, in turn, limits the filters' adsorption capacity.
However in such an arrangement, and also when a carbon filter is used by itself, the air velocities are such that the contact time is too short for the carbon filter to remove pollutants efficiently.
The system can be used in commercial buildings such as nail or hair salons, pet stores, and other buildings in which VOCs and other chemicals of various kinds are used, and in any residence or commercial building the interior of which is liable to be contaminated by airborne gases, vapors and odors.
Method used
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[0022]FIG. 1 shows a heating, ventilating and air conditioning (HVAC) unit 10 for a building. The HVAC unit includes a blower 12 for circulating air through a heat exchanger 14. The heat exchanger can be used to heat or cool the air, or both to heat and cool the air, depending on the relationship between the desired temperature and the current air temperature. Air exits the heat exchanger through a supply duct 16, which can be connected to heat vents throughout the building by a network of branches (not shown). Air is returned to the HVAC unit through a return duct 18, which is similarly connected to return ports throughout the building by another network of branches. A fiber filter 20, for removal of particulate matter from the circulating air, is disposed in the path of the air flowing into the HVAC unit through the return duct 18. Thus, the return duct, the blower, the heat exchanger, the supply duct, and the interior of the building, are all parts of a first air flow path, throu...
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In a system for cleaning, and for maintaining a desired temperature in, the air within the interior of a building, an activated carbon filter is disposed in a filter housing forming part of a conduit connected from a supply duct to a return duct. Air flows through the activated carbon filter as a result of the difference between the pressures of the air in the respective ducts, and substantially the entire quantity of air within the building is passed through the carbon filter in a short time.
Description
CROSS-REFERENCE TO RELATED APPLICATION[0001]This application is a division of application Ser. No. 14 / 663,545, filed Mar. 20, 2015 and published as U.S. Patent Application Publication 2016 / 0273790 on Sep. 22, 2016. The content of the Patent Application Publication is here incorporated by reference.FIELD OF THE INVENTION[0002]This invention relates to systems for maintaining the air within the interior of a building at a desired temperature, such as forced-air heating systems, air-conditioning systems, and combined forced-air heating and air-conditioning systems (HVAC) systems. The invention relates particularly to an easily installed apparatus for cleaning the air as it circulates through the system.BACKGROUND OF THE INVENTION[0003]Many homes and commercial buildings are plagued by indoor pollutants and odors from various sources such as new construction materials, cleaning chemicals, cooking, and pets. Pollutants also enter buildings from the outside, and can be troublesome especia...
Claims
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IPC IPC(8): F24F3/16F24F8/158F24F8/108
CPCF24F3/1603F24F2003/1625F24F2003/1614F24F8/108F24F8/158F24F8/10
Inventor CUNNINGHAM, JAMES
Owner CUNNINGHAM JAMES