Device for preventing steam from being produced in flue gas cooler for oxyfuel combustion boiler
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United States of America Patent
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Feb 27, 2018
Issued Date -
N/A
app pub date -
Feb 25, 2016
filing date -
Sep 18, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A feed-water discharge side of a condenser is connected to a feed-water entry side of an flue gas cooler through a bypass line provided with a steam production preventive pump and with an inlet cutoff valve. A feed-water discharge side of the flue gas cooler is connected to the feed-water entry side of the condenser through a steam production preventive water circulation line provided with an outlet cutoff valve. When a boiler feed-water pump is stopped in boiler fuel cutoff, the inlet and outlet cutoff valves are opened and the steam production preventive pump is activated to cause water to flow through the bypass line into the flue gas cooler, is returned through the steam production preventive water circulation line to the condenser and is circulated.
First Claim
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International Classification(s)
- F23J:REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COM....
- F01K:STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PL....
- F23L:AIR SUPPLY; DRAUGHT-INDUCING; SUPPLYING NON-COMBUS....
- F23B:METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOL....
- F22B:METHODS OF STEAM GENERATION; STEAM BOILERS
- F23C:METHODS OR APPARATUS FOR COMBUSTION USING FLUENT F....
- F22D:PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER;....
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