Low temperature heat exchanging system and method for a heat recovery steam generator
AssigneeNooter/Eriksen, Inc.
InventorElio Gabriele MAZZI
Life of this patent
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AssigneeNooter/Eriksen, Inc.
InventorElio Gabriele MAZZI
Estimating the term…
Heat recovery steam generator-method, comprising a casing, upstream coils of heat exchanger tubes downstream from casing inlet, one or more feedwater heater coils in casing downstream from upstream coils, one or more low temperature heat exchanging coils in casing downstream from upstream coils, one or more low temperature heat exchanging coils within casing comprising corrosion-resistant, thermally conductive graphite component-thermoplastic polymer component composite material, a first flow conduit extending from low temperature heat exchanging coil to feedwater heater coil for water to flow from low temperature coil to feedwater heater coil; and second conduit extending from one or more feedwater heater coils to one or more of the upstream coils for flow from feedwater heater coil to one or more upstream coils, so gas passing through inlet passes through upstream coils through one or more feedwater heater coils and then through one or more low temperature coils.
A heat recovery steam generator comprising:
The heat recovery steam generator of claim 18, further comprising a water-to-water heat exchanger positioned external to the casing and having a lower temperature path and a higher temperature path, the water-to-water heat exchanger having an inlet configured to be in connection with its lower temperature path so that the first conduit can extend through said inlet and pass through the low temperature path and thence extend to flow connection with a first of the feedwater heater sections near the downstream face of said first feedwater heater section, the said first section having a conduit flowing from near its upstream face into the higher temperature path of the water-to-water heat exchanger, the higher temperature path extending to flow connection to near the downstream face of another feedwater heater section.
A process for heating feedwater for a heat recovery steam generator which heat recovery steam generator has:
Dependencies are inferred from the claim text.