Method of and apparatus for analyzing atmosphere of a furnace
First Claim
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1. A method for monitoring the interior atmosphere of a furnace wherein the pressure of the furnace interior atmosphere is less than that of the furnace exterior atmosphere, including the steps of:
- providing a fluid flow conductor communicating at one end with the furnace interior atmosphere and at its opposite end with the furnace exterior atmosphere;
creating at least a partial vacuum within said fluid flow conductor to aspirate a portion or sample of the furnace interior atmosphere through said fluid flow conductor to the furnace exterior atmosphere;
moving at least a portion of said sample past said analyzing means; and
analyzing said sample to monitor said sample with respect to its content.
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Abstract
An apparatus for monitoring a negative pressure atmosphere, e.g. a regenerative furnace atmosphere during an exhaust cycle, has aspirating facilities for aspirating an atmospheric sample from the negative pressure atmosphere and moving the sample past an analyzer for content analysis thereof.
8 Citations
18 Claims
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1. A method for monitoring the interior atmosphere of a furnace wherein the pressure of the furnace interior atmosphere is less than that of the furnace exterior atmosphere, including the steps of:
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providing a fluid flow conductor communicating at one end with the furnace interior atmosphere and at its opposite end with the furnace exterior atmosphere; creating at least a partial vacuum within said fluid flow conductor to aspirate a portion or sample of the furnace interior atmosphere through said fluid flow conductor to the furnace exterior atmosphere; moving at least a portion of said sample past said analyzing means; and analyzing said sample to monitor said sample with respect to its content. - View Dependent Claims (2)
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3. An apparatus for monitoring the interior atmosphere of a furnace, including:
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means disposed exteriorly of the furnace for analyzing a portion of the furnace interior atmosphere having a pressure less than that of the furnace exterior atmosphere, said portions being defined as a sample; and means for aspirating said sample from the furnace interior to said analyzing means for analysis of said sample, said aspirating means including; a fluid flow conductor communicating at one end with the furnace interior atmosphere and at its opposite end with the furnace exterior atmosphere; means for fluidly interconnecting said analyzing means and said fluid flow conductor; and means for creating at least a partial vacuum within said fluid flow conductor for inducing said sample to flow from the furnace interior through said fluid flow conductor to the furnace exterior atmosphere, at least a portion of said sample being moved past said analyzing means for analysis of said sample. - View Dependent Claims (4, 5)
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6. An apparatus for monitoring the interior atmosphere of a regenerative glassmaking furnace, including:
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means disposed exteriorly of the furnace for analyzing a portion of the furnace interior atosphere defined as a sample; means for aspirating said sample from the furnace interior to said analyzing means for analysis of said sample, said aspirating means including; a refractory adaptor block having a sample passageway extending between and through first and second ends of said adaptor block; means for mounting said adaptor block in an outside wall of the furnace at a location such that said sample passageway communicates at one end with the interior atmosphere of the furnace; a sample conduit fluidly connected at one end with the opposite end of said sample passageway, and at its opposite end with the furnace exterior atmosphere; a convection pipe loop having a sample entrance end and a sample exit end disposed in fluid communication with said sample conduit at spaced points intermediate said ends of said sample conduit, at least a portion of said sample being convected through said convection pipe loop, prior to exiting said sample conduit, and past said analyzing means for analysis of said sample; and a vacuum creating means, including; a portion of said sample conduit located downstream of said convection pipe loop, wherein said portion is bent so as to project substantially laterally with respect to the other or unbent portion of said sample conduit; an aperture provided through a wall of said sample conduit opposite a central portion of the interior of said bent portion; and means for directing pressurized fluid from a source of pressurized fluid through said aperture and thence through said central portion of said bent portion interior to said furnace exterior atmosphere, to thereby create at least a partial vacuum within said sample conduit; and wherein the pressure differential between the furnace interior and the furnace exterior is negative. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification