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Energy conserving heating and cooling system for printing plant
| Details |
Inventors: St. John, Eric P.;
Assignee:
Primary Examiner: Favors; Edward G.
Assistant Examiner:
Attorney, Agent or Firm:
A low-cost energy-conserving system for heating and cooling the equipment and environment of a manufacturing installation, and more particularly, a printing plant, including an incinerator for burning waste paper generated as a result of the printing process, a first heat exchanger for utilizing exhaust gases from the incinerator for heating air to be supplied to a heat treating device or apparatus, and more particularly, a web press oven, first ductwork for conducting heated air from the first heat exchanger to the web press oven for heating purposes, second ductwork for conducting solvent-laden air from the web press oven to the incinerator where the solvents are burned to utilize their heating value and to also produce pollution-free gases, a second heat exchanger utilizing exhaust gases from the incinerator for heating air to be provided to the plant for environmental heating purposes, an outside air duct for providing air to be heated by the second heat exchanger, third ductwork for conducting heated air from the second heat exchanger to various areas of the plant for comfort heating purposes, recirculating ductwork associated with the third ductwork for recirculating environmental air to the third ductwork, controls for varying the amount of outside air and recirculated air which is supplied to the third ductwork, a well for providing cooling water to a cooling coil in the third ductwork for dehumidification and cooling purposes, and conduits for returning used cooling water to a recharge well in an uncontaminated state. |
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DETAILED DESCRIPTION It is accordingly one object of the present invention to provide a low-cost, energy-conserving system for heating the equipment and environment of a printing plant by incinerating waste paper generated incidental to the printing process.
Another object of the present invention is to provide an improved system for cooling the equipment and environment of a printing plant by obtaining cool water from a well on the premises of the printing plant, utilizing the cooling capacity of said water, and returning warmed cooling water to the ground in an uncontaminated state.
A further object of the present invention is to provide a low-cost, energy-conserving and anti-pollution system for heating the equipment and environment of a printing plant, wherein combustible solvent-laden air which is produced in the web press heating ovens is returned to an incinerator wherein the heating value of the solvent is utilized and where the solvents are burned to create pollution-free gases which are ultimately discharged to the atmosphere.
Other objects and attendant advantages of the present invention will readily be perceived hereafter.
The present invention relates to a printing plant heating system comprising an incinerator for incinerating waste paper generated as a result of printing operations, exhaust duct means for conducting heated gases from said incinerator, a web press oven, heat exchange means for transferring heat from said heated gases in said exhaust duct means to heating air to be supplied to said web press oven, first duct means for conducting heated air from said heat exchange means to said web press oven, and second duct means for conducting solvent-laden air from said web press oven to said incinerator to burn off solvent in said solvent-laden air.
In accordance with the present invention, second heat exchange means are provided for transferring heat from said heated gases in said exhaust duct means to air to be supplied for heating said printing plant, and third duct means are provied for conducting heated air from said heat exchange means to various areas of said printing plant
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Metal Working 
