Refrigeration – Automatic control – Of external fluid or means
Reexamination Certificate
1999-05-17
2001-04-03
Doerrler, William (Department: 3744)
Refrigeration
Automatic control
Of external fluid or means
C062S089000, C062S185000, C062S186000, C062S203000, C062S237000, C062S448000
Reexamination Certificate
active
06209330
ABSTRACT:
TECHNICAL FIELD
This invention relates generally to air handling systems and, more particularly, to a modular cooling system for conditioning air while utilizing an existing chilled water supply. Though not limited thereto, the present invention is particularly useful in connection with large computer installations which require a continuous or near-continuous supply of conditioned air for reliable operation.
BACKGROUND ART
Individuals, businesses, and governments have grown increasingly dependent on the services and resources that are made available through the processing of computers and computerized control facilities. In spite of the explosive growth in the utilization of control circuits and personal computers in recent years, many computer applications continue to rely on the services provided by large computer mainframe installations. Such data processing facilities are often in continuous operation, twenty-four hours per day, three hundred and sixty-five days a year.
The computer equipment typically found in mainframe computer rooms generates vast amounts of heat and requires a limited temperature environment in which to operate reliably. In addition, a continuous supply of clean air is necessary to prevent the buildup of dust or dirt, which could contaminate the electrical circuits and compromise the reliable operation of the equipment.
While the thousands of mainframe computer installations in continuous operation throughout the world attest to the fact that many data processing facilities have provided at least basic cooling and filtration operations, problems still exist. In fact, HVAC (heating, ventilating, air conditioning) systems have been designed and implemented for year-around operation, with energy conservation cycles to take advantage of lower ambient temperatures. Some of these systems are well known to be fully integrated systems that address the cooling and filtration requirements of electronic data processing and control equipment. However, such systems are designed and marketed in a finite number of configurations, such as in 5, 10, 15, etc. ton capacities. Because of the critical nature of the services and resources provided by mainframe data processing systems and because of the finite operating temperatures and humidity in which such equipment can operate reliably, HVAC systems supporting computer facilities have been designed with redundant components in the form of backup compressors, pumps, and fan motors. However, such redundancy raises both the cost and size of such equipment. Furthermore, not all key components in such systems are duplicated, and a failure of any of these elements results in the HVAC system operating at reduced capacity or even being shut down to await parts and repair by skilled personnel.
The present invention is directed to overcoming one or more of the problems set forth above.
DISCLOSURE OF THE INVENTION
In one aspect of this invention, a modular air handling system for producing a supply of cooled air for cooling purposes is disclosed. The modular air handling system includes a module container and a primary duct work mechanism for transporting the air within the module container and a blower module for propelling the air within the primary duct work mechanism, along with a cooling coil module located within the module container, wherein a variable volume and temperature of cooled air is propelled by the blower module to at least one resource that is located external to the module container.
In another aspect of the present invention, a method for producing a supply of cooled air to facilities external to a modular air handling system is disclosed. The method includes the steps of housing the primary air handling apparatus of a blower module, a cooling coil module, and a primary duct work mechanism within a module container and cooling a supply of air and propelling a variable volume and temperature of cooled air to at least one resource located external to the module container.
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Cushing Ralph J.
Timmerman George H.
Weyeneth Bradley A.
Caterpillar Inc.
Doerrler William
Howard & Howard
Norman Marc
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