Modular cooling loop system
a cooling loop and module technology, applied in the field of cooling systems, can solve the problems of not providing independent temperature control, adding complexity and cost to the molding process, and requiring additional maintenan
Inactive Publication Date: 2005-07-14
ROESLEIN & ASSOC INC
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Benefits of technology
"The patent describes a modular cooling loop system for cooling a manufacturing process machine. The system includes a movable chassis and a coolant piping loop with a pump, inlets, outlets, temperature sensors, flow sensors, and a flow control valve. The coolant piping loop recirculates coolant through the machine and the chilled water supply system. The system can be connected to a chilled water supply system and the manufacturing process machine, and the coolant flow rate and temperature can be controlled. The system allows for efficient cooling of the process machine."
Problems solved by technology
Such individual chillers add complexity and cost to the molding process and also require added maintenance.
Such systems may not provide independent temperature control at each injection machine.
Method used
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[0013] A modular cooling loop system is described in detail below. An exemplary embodiment of the cooling loop system includes wheels to make the system portable. The modular cooling loop system maintains a constant flow and temperature of coolant used to cool a manufacturing process machine, for example, an injection molding machine. Maintaining a more constant coolant flow and temperature than known cooling systems increases productivity of the molding machine by reducing cycle time. Injection machines are often required to make parts of various sizes with different molds having specific flow requirements. The modular cooling loop system is a coolant control system that makes it possible to easily reproduce specific flow and temperature requirements for a specific mold. Additionally, while the cooling loop system pump circulates the required flow through the process machine, the flow rate required from the chilled water supply system is significantly lower than the flow rate throu...
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A modular cooling loop system for cooling a manufacturing process machine connects to a chilled water system and the manufacturing process machine. The cooling loop system includes a movable chassis and a coolant piping loop mounted on the chassis. The coolant piping loop includes a pump, a plurality of coolant inlets a plurality of coolant outlets, a plurality of temperature sensors for measuring coolant temperature in the coolant piping loop, a flow sensor for measuring coolant flow in the coolant piping loop, and a flow control valve for controlling the flow of fresh coolant into the coolant piping loop. The coolant piping loop is configured to recirculate coolant through the coolant piping loop and the manufacturing process machine.
Description
BACKGROUND OF THE INVENTION [0001] This invention relates generally to cooling systems, and more particularly to cooling systems for industrial applications. [0002] Some known plastic molding processes include injecting molten resin into a cavity in an injection die mold. The mold is closed and compressed and then cooled to solidify the plastic resin. Usually the cooling is accomplished by circulating water through cooling channels in the die mold to lower the temperature of the plastic resin. In some processes, plant water is used as the cooling medium, and in other processes, chilled water is used as the cooling medium. [0003] For quality molded parts, the rate of heat removal from the die mold during the cooling cycle of the molding process should be repeatable by controlling both temperature and flow rate of the coolant so that the die is cooled to the same rate each time a part is molded in the die. The temperature of the coolant as well as the flow rate and heat load should be...
Claims
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IPC IPC(8): F25D17/02
CPCF25D17/02
Inventor LUEBKE, PAUL W.
Owner ROESLEIN & ASSOC INC