Furnace over-pressure prevention

Details Furnace over-pressure prevention Furnace over-pressure prevention

F - Mech Eng,Light,Heat,Weapons

23

N

340/143, 122/155

F23N 5/24 (2006.01)

Patent

CA 1060734

ABSTRACT OF THE DISCLOSURE An apparatus for preventing the over-pressuring of a furnace which comprises a small diameter heat resistant tube inserted through the side of the furnace just below the convection section. A thermo- couple is used to detect whether cool air is passing through the tube into the furnace because it is operating with a negative pressure or whether the pressure is positive and hot combustion gases are flowing out of the furnace. The change in temperature is detected and used to warn operating personnel of potential damage to the furnace. The temperature change may also be used to take some predetermined correc- tive actions automatically.

224040

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