US 5,345,755 AGranted

Steam turbine plant

AssigneeSiemens Aktiengesellschaft

InventorsHermann Bruckner, Werner Emsperger

Life of this patent

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Abstract

A gas and steam turbine plant includes a steam turbine having a water-steam loop. A waste heat boiler which is connected downstream of a gas turbine includes a high-pressure preheater connected in the water-steam loop, a high-pressure heater connected downstream of the high-pressure preheater, a low-pressure heater connected upstream of the high-pressure preheater, and an evaporator of a medium-pressure heater. A coal gasification plant is connected upstream of the gas turbine. An outflow line leads into the coal gasification plant and is connected to the water-steam loop downstream of the high-pressure preheater, as seen in water flow direction. A water-steam drum communicates with the outflow line and is connected to the evaporator.

Claims6

Dependent claims

A gas and steam turbine plant, comprising:

a steam turbine having a water-steam loop defining a water flow direction;
a gas turbine defining a gas flow direction;
a waste heat boiler connected downstream of said gas turbine as seen in the gas flow direction, said waste heat boiler including a high-pressure preheater connected in said water-steam loop, a high-pressure heater connected downstream of said high-pressure preheater as seen in the water flow direction, a low-pressure heater connected upstream of said high-pressure preheater as seen in the water flow direction, and a medium-pressure heater with an evaporator;
a coal gasification plant connected upstream of said gas turbine;
an outflow line leading into said coal gasification plant and being connected to said water-steam loop downstream of said high-pressure preheater, as seen in water flow direction;
and
a water-steam drum communicating with said outflow line and being connected to said evaporator and said high-pressure preheater.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/101,576Filed 3 Aug 1993 · division
Priority: DE 412373017 Jul 1991
Granted: 13 Sep 1994
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

F01K 23/106
With exhaust fluid of one cycle heating the fluid in another cycle: with water evaporated or preheated at different pressures in exhaust boiler
F01K 23/067
Combustion heat from one cycle heating the fluid in another cycle: the combustion heat coming from a gasification or pyrolysis process, e.g. coal…
Y02E 20/18
Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]: integrated gasification combined cycle [IGCC], e.g. combined with carbon…
Y02T 10/12
Internal combustion engine [ICE] based vehicles: improving ICE efficiencies

Family

Serial916,033Parent of this division · filed 17 Jul 1992
US 5,251,432 AParent of this division
US 5,345,755 AThis patent

From the US filing history. Foreign family members aren’t listed.

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