Browse Prior Art Database

Furnace Thermocouple Feed

IP.com Disclosure Number: IPCOM000087549D
Original Publication Date: 1977-Feb-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Burke, JR: AUTHOR

Abstract

In heating large products in automatic furnaces which pass the product 10 through the furnace 11 by a conveyor system, for example, a pair of conveyors 13 and 14, in order to prepare the furnace for the proper temperatures to accomplish the end result, it is mandatory that the furnace e "profiled'" Profiling the furnace means drawing a temperature curve corresponding to the various locations through the length of the furnace, and by that technique insuring that the product will always be exposed to the correct temperature.

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Furnace Thermocouple Feed

In heating large products in automatic furnaces which pass the product 10 through the furnace 11 by a conveyor system, for example, a pair of conveyors 13 and 14, in order to prepare the furnace for the proper temperatures to accomplish the end result, it is mandatory that the furnace e "profiled'" Profiling the furnace means drawing a temperature curve corresponding to the various locations through the length of the furnace, and by that technique insuring that the product will always be exposed to the correct temperature.

Often it is essential to the initial profiling of the furnace that thermocouples or other temperature-sensing devices be placed upon the product as it passes through the furnace so that instantaneous temperature readings of the product may be obtained anywhere over the length of the furnace. Thermocouples and their leads very often become ensnared or fouled in the conveyor mechanism, resulting in breakage of the wires and, in most instances, resulting in the necessity of placing new thermocouple wires and leads, and starting the profiling process all over again.

As shown in the drawing, by forming thin wall tubing 15 and 16 through the cover of the furnace 11, and routing the tubing beneath the conveyors to provide exits 13A and 14A respectively, associated with the conveyors, the thermocouples, with their associated wire, may be fed through the tubing and the thermocouples, attached as at 17 and 18, to the product bei...