A power plant comprises a gas turbo group with a heat transfer apparatus, for example a recuperator for the preheating of the combustion air, arranged downstream of the turbine in the smoke gas path of the gas turbo group. A smoke gas purification catalyst is arranged downstream of at least part of
A power plant comprises a gas turbo group with a heat transfer apparatus, for example a recuperator for the preheating of the combustion air, arranged downstream of the turbine in the smoke gas path of the gas turbo group. A smoke gas purification catalyst is arranged downstream of at least part of the heat transfer apparatus, at a point at which the smoke gas is already cooled as a result of heat exchange to an extent such that irreversible damage to the catalyst due to overheating is avoided. On the other hand, the point is selected such that a temperature necessary for maintaining the catalytic smoke gas purification is ensured. In a preferred embodiment, a temperature measurement point is arranged, at which the temperature of the catalyst or of the smoke gas flowing into the catalyst is determined, so that this temperature can be regulated by means of suitable regulating actions.
대표청구항▼
The invention claimed is: 1. A power plant, comprising a gas turbo group which includes: at least one compressor; at least one combustion chamber arranged downstream of the compressor; at least one turbine arranged downstream of the combustion chamber; a heat transfer apparatus, downstream of the f
The invention claimed is: 1. A power plant, comprising a gas turbo group which includes: at least one compressor; at least one combustion chamber arranged downstream of the compressor; at least one turbine arranged downstream of the combustion chamber; a heat transfer apparatus, downstream of the first turbine, having a primary side arranged in a smoke gas path of the turbine and a secondary side arranged in a working fluid flow path for a gaseous working fluid; a smoke gas purification catalyst, arranged, in the smoke gas path of the gas turbo group within the heat transfer apparatus, downstream of a first part of the heat transfer apparatus and upstream of a second part of the heat transfer apparatus; a pressure accumulator; at least one accumulator fluid expansion tank connected to the pressure accumulator wherein the heat transfer apparatus is arranged, on the secondary side, in a fluid flow path leading from the pressure accumulator to the accumulator fluid expansion engine; at least one temperature measurement device for determining the smoke gas temperature of the catalyst inlet and/or the catalyst temperature; and a shutoff and/or throttle member arranged in the fluid flow path between the pressure accumulator and the accumulator fluid expansion engine; wherein a temperature controller is connected up with the smoke gas temperature of the catalyst inlet and/or the catalyst temperature as controlled variable and with the position of the shutoff and/or throttle member as controlling variable. 2. A power plant, comprising a gas turbo group which includes: at least one compressor; at least one combustion chamber arranged downstream of the compressor; at least one turbine arranged downstream of the combustion chamber; a heat transfer apparatus, downstream of the first turbine, having a primary side arranged in a smoke gas path of the turbine and a secondary side arranged in a working fluid flow path for a gaseous working fluid; a smoke gas purification catalyst, arranged, in the smoke gas path of the gas turbo group within the heat transfer apparatus, downstream of a first part of the heat transfer apparatus and upstream of a second part of the heat transfer apparatus; a pressure accumulator; at least one accumulator fluid expansion tank connected to the pressure accumulator wherein the heat transfer apparatus is arranged, on the secondary side, in a fluid flow path leading from the pressure accumulator to the accumulator fluid expansion engine; at least one temperature measurement device for determining the exhaust gas temperature in the smoke gas path downstream of the heat transfer apparatus; and a shutoff and/or throttle member arranged in the fluid flow path between the pressure accumulator and the accumulator fluid expansion engine; wherein a temperature controller is connected up with the exhaust gas temperature as controlled variable and with the position of the shutoff and/or throttle member as controlling variable. 3. A power plant, comprising a gas turbo group which includes: at least one compressor; at least one combustion chamber arranged downstream of the compressor; at least one turbine arranged downstream of the combustion chamber; a heat transfer apparatus, downstream of the first turbine, having a primary side arranged in a smoke gas path of the turbine and a secondary side arranged in a working fluid flow path for a gaseous working fluid; a smoke gas purification catalyst, arranged, in the smoke gas path of the gas turbo group within the heat transfer apparatus, downstream of a first part of the heat transfer apparatus and upstream of a second part of the heat transfer apparatus; a pressure accumulator; and at least one accumulator fluid expansion tank connected to the pressure accumulator wherein the heat transfer apparatus is arranged, on the secondary side, in a fluid flow path leading from the pressure accumulator to the accumulator fluid expansion engine, wherein a heat supply device, in particular an additional firing device, is arranged in the smoke gas path of the gas turbo group upstream of the heat transfer apparatus. 4. The power plant as claimed in claim 3, furthermore comprising; at least one temperature measurement device for determining the smoke gas temperature of the catalyst inlet and/or the catalyst temperature; wherein a temperature controller is connected up with the smoke gas temperature of the catalyst inlet and/or the catalyst temperature as controlled variable and with the position of a fuel mass flow actuating member of the heat supply device as controlling variable. 5. The power plant as claimed in claim 3, wherein a power controller of the accumulator fluid expansion engine is connected up with the position of a fuel mass flow actuating member of the heat supply device as controlling variable. 6. The power plant as claimed in claim 3, furthermore comprising: means for determining the accumulator fluid temperature downstream of the heat transfer apparatus, wherein a temperature controller is connected up with the accumulator fluid temperature as controlled variable and with the position of a fuel mass flow actuating member of the heat supply device as controlling variable. 7. A power plant, comprising a gas turbo group which includes: at least one compressor; at least one combustion chamber arranged downstream of the compressor; at least one turbine arranged downstream of the combustion chamber; a heat transfer apparatus, downstream of the first turbine, having a primary side arranged in a smoke gas path of the turbine and a secondary side arranged in a working fluid flow path for a gaseous working fluid; a smoke gas purification catalyst, arranged, in the smoke gas path of the gas turbo group within the heat transfer apparatus, downstream of a first part of the heat transfer apparatus and upstream of a second part of the heat transfer apparatus; a pressure accumulator; and at least one accumulator fluid expansion tank connected to the pressure accumulator wherein the heat transfer apparatus is arranged, on the secondary side, in a fluid flow path leading from the pressure accumulator to the accumulator fluid expansion engine, wherein a further accumulator fluid heat supply device is arranged in the accumulator fluid flow path downstream of the heat transfer apparatus and upstream of the accumulator fluid expansion engine. 8. The power plant as claimed in claim 7, furthermore comprising: means for determining the accumulator fluid temperature downstream of the further accumulator fluid heat supply device, wherein a temperature controller is connected up with the accumulator fluid temperature as controlled variable and with the position of a fuel mass flow actuating member of the further accumulator fluid heat supply device as controlling variable. 9. The power plant as claimed in claim 7, wherein a power controller of the pressure accumulator expansion turbine is connected up with the position of a fuel mass flow actuating member of the further heat supply device as controlling variable. 10. The power plant as claimed in claim 7, wherein means for regulating the temperature of the catalyst and/or the smoke gas temperature at the inlet into the catalyst. 11. A method comprising: operating a power plant having a gas turbo group which includes: at least one compressor; at least one combustion chamber arranged downstream of the compressor; at least one turbine arranged downstream of the combustion chamber; a heat transfer apparatus, downstream of the first turbine, having a primary side arranged in a smoke gas path of the turbine and a secondary side arranged in a working fluid flow path for a gaseous working fluid; a smoke gas purification catalyst, arranged, in the smoke gas path of the gas turbo group within the heat transfer apparatus, downstream of a first part of the heat transfer apparatus and upstream of a second part of the heat transfer apparatus; a pressure accumulator; at least one accumulator fluid expansion tank connected to the pressure accumulator wherein the heat transfer apparatus is arranged, on the secondary side, in a fluid flow path leading from the pressure accumulator to the accumulator fluid expansion engine; and a further accumulator fluid heat supple device arranged in the accumulator fluid flow path downstream of the heat transfer apparatus and upstream of the accumulator fluid expansion engine; the method comprising regulating the temperature of a catalyst and/or a smoke gas temperature at an inlet into the catalyst.
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