# US 2019/0170023 A1 · Steam and Gas Turbine Device

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- Number: US 2019/0170023 A1
- Document ID: US20190170023A1
- Status: Published application
- Kind: A1
- Application number: 16/321,369
- Filed: 2017-07-26
- Published: 2019-06-06
- Earliest claimed: 2016-07-28
- Inventors: Henk Ouwerkerk
- Web page: https://patentgrep.com/patent/US20190170023A1

## CPC

- F01K 23/10: with exhaust fluid of one cycle heating the fluid in another cycle (F01K17/025 takes precedence)
- F01K 13/02: Controlling, e.g. stopping or starting
- F01K 23/16: all the engines being turbines (F01K23/14 takes precedence)
- F02C 6/18: using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants (using waste heat as source of energy for refrigeration plants F25B27/02; using the waste heat of a gasturbine for steam generation or in a steam cycle see F01K23/10)
- F05D 2220/31: in steam turbines
- F05D 2220/32: in gas turbines
- F01K: STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES (gas-turbine or jet-propulsion plants F02; nuclear power plants, engine arrangements therein G21D)
- F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00)
- F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS

## Abstract

The invention relates to a steam and gas turbine device comprising a gas turbine unit (A) and a steam turbine unit (B), wherein the gas turbine unit (A) is partly composed of at least the following: a gas compressor (1) positioned on a compressor axle (4), a combustion chamber (2) and a gas turbine (3) positioned on a gas turbine axle (5); and wherein the steam turbine unit (B) is partly composed of the following: a closed steam line (6) in which at least the following are accommodated: a pump (7); a steam converter (8; 50), which, in operation, is in heat-exchanging contact with the gases (3b) coming from the gas turbine (3); a steam turbine (9) positioned on a steam turbine axle (10); as well as a condenser (11).

## Claims

### Claim 1

Steam and gas turbine device comprising a gas turbine unit (A) and a steam turbine unit (B), wherein the gas turbine unit (A) is partly composed of at least the following:
a gas compressor (1) positioned on a compressor axle (4), a combustion chamber (2) and a gas turbine (3) positioned on a gas turbine axle (5); and
wherein the steam turbine unit (B) is partly composed of the following:
a closed steam line (6) in which at least the following are accommodated:
a pump (7); a steam converter (8; 50), which, in operation, is in heat-exchanging contact with the gases (3b) coming from the gas turbine (3); a steam turbine (9) positioned on a steam turbine axle (10); as well as a condenser (11) and wherein, in operation, the steam turbine (9) drives the gas compressor (1) of the gas turbine unit (A), wherein the gas turbine unit (A) furthermore comprises at least one heat exchanger (20) which brings the combustible flue gases coming from the combustion chamber (2) into heat-exchanging contact with the gases coming from the gas compressor (1) and wherein the gas turbine unit (A) comprises a blow-off valve (21) which is arranged upstream of the gas turbine (3) for blowing off the gases coming from the gas compressor (1).

### Claim 2 (depends on 1)

Steam and gas turbine device according to claim 1, wherein the blow-off valve (21) is arranged upstream of the at least one heat exchanger (20).

### Claim 3 (depends on 1)

Steam and gas turbine device according to claim 1, wherein the steam converter (8; 50) comprises a steam generator (8), which, in operation, is in heat-exchanging contact with the combustible flue gases coming from the combustion chamber (2).

### Claim 4 (depends on 1)

Steam and gas turbine device according to claim 1, the device furthermore comprises a first air pre-heater (30), which brings the steam line (6) into heat-exchanging contact with the gases coming from the gas compressor (1).

### Claim 5 (depends on 4)

Steam and gas turbine device according to claim 4, wherein the first air pre-heater (30) is accommodated in the device downstream viewed from the steam generator (8) and upstream viewed from the at least one heat exchanger (20).

### Claim 6 (depends on 2)

Steam and gas turbine device according to claim 2, wherein the blow-off valve (21) is accommodated in the gas turbine unit (A) downstream viewed from the first air pre-heater (30).

### Claim 7 (depends on 4)

Steam and gas turbine device according to claim 4, wherein the first air pre-heater (30) is accommodated in the device downstream viewed from the steam turbine (9).

### Claim 8 (depends on 1)

Steam and gas turbine device according to claim 1, wherein the device furthermore comprises a second air pre-heater (40) which brings the gases coming from the gas turbine (3) into heat-exchanging contact with the gases coming from the gas compressor (1).

### Claim 9 (depends on 6)

Steam and gas turbine device according to claim 6, wherein the blow-off valve (21) is accommodated in the gas turbine unit (A) upstream viewed from the second air pre-heater (40).

### Claim 10 (depends on 8)

Steam and gas turbine device according to claim 8, wherein the second air pre-heater (40) is accommodated in the device upstream viewed from the at least one heat exchanger (20).

### Claim 11 (depends on 10)

Steam and gas turbine device according to claim 10, wherein the second air pre-heater (40) is accommodated in the device downstream viewed from the first air pre-heater (30).

### Claim 12 (depends on 1)

Steam and gas turbine device according to claim 1, wherein the steam converter (8; 50) comprises a steam superheater (50), which, in operation, is in heat-exchanging contact with the gases (3b) coming from the gas turbine (3).

### Claim 13 (depends on 1)

Steam and gas turbine device according to claim 1, wherein the gas turbine (3) is in flow connection with the combustion chamber (2) in order to pass the gases (3b) coming from the gas turbine to the combustion chamber (2).

### Claim 14 (depends on 1)

Steam and gas turbine device according to claim 1, wherein the gas compressor (1) and the steam turbine (9) are positioned on the same axle (4, 10).

### Claim 15 (depends on 1)

Steam and gas turbine device according to claim 1, wherein the blow-off valve (21) is connected to the combustion chamber (2).
