System, method and apparatus for minimizing heat loss in a heat recovery steam generator
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United States of America Patent
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Dec 25, 2018
Grant Date -
Jul 27, 2017
app pub date -
Jan 13, 2017
filing date -
Jan 27, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A damper assembly for minimizing heat loss through an exhaust stack includes a housing mountable within the stack and an umbrella received within the housing. The umbrella is selectively movable between a first position in which the umbrella is received within the housing, and second position in which the umbrella is extended from the housing such that a peripheral edge of the umbrella is in close association with an interior sidewall of the exhaust stack to minimize a flow of fluid past the umbrella and out of the stack.
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International Classification(s)
- F16K:VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR....
- F01K:STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PL....
- F23L:AIR SUPPLY; DRAUGHT-INDUCING; SUPPLYING NON-COMBUS....
- F01N:GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHIN....
- F22B:METHODS OF STEAM GENERATION; STEAM BOILERS
- F02G:HOT-GAS OR COMBUSTION- PRODUCT POSITIVE-DISPLaCEME....
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