GB2614839A - Gas turbine fuel treatment circuit and method for starting up a gas turbine - Google Patents
Gas turbine fuel treatment circuit and method for starting up a gas turbine Download PDFInfo
- Publication number
- GB2614839A GB2614839A GB2305393.7A GB202305393A GB2614839A GB 2614839 A GB2614839 A GB 2614839A GB 202305393 A GB202305393 A GB 202305393A GB 2614839 A GB2614839 A GB 2614839A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- shut
- fuel gas
- gas turbine
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D19/00—Starting of machines or engines; Regulating, controlling, or safety means in connection therewith
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/22—Fuel supply systems
- F02C7/224—Heating fuel before feeding to the burner
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D19/00—Starting of machines or engines; Regulating, controlling, or safety means in connection therewith
- F01D19/02—Starting of machines or engines; Regulating, controlling, or safety means in connection therewith dependent on temperature of component parts, e.g. of turbine-casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/22—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/26—Starting; Ignition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/60—Fluid transfer
- F05D2260/605—Venting into the ambient atmosphere or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/85—Starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/303—Temperature
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel Cell (AREA)
Abstract
A gas turbine fuel treatment circuit is disclosed. The fuel treatment circuit comprises at least one heater, for heating the fuel gas, and a recirculatory, such as a compressor, for feedback the fuel gas heated by the heater, back to the same, through the fuel gas manifold. A control logic unit is functionally coupled to a shut-off member of the gas turbine, and to a recirculation shut-off valve, to control the feed of the gas turbine by the fuel gas, when the same reaches a temperature, suitable to start-up the gas turbine. Also disclosed is a method for starting up a gas turbine by the fuel gas adduced from a gas source.
Claims (14)
1. A fuel gas treatment circuit (1) intended to be connected between a fuel gas source (2) and a gas turbine (3), wherein the gas turbine (3) is equipped with a shutoff member (32), the fuel gas treatment circuit (3) comprising: a heater (13), having an inlet (131) and an outlet (132), wherein the inlet (131) of the heater (13) is coupled with the fuel gas source (2), and wherein the heater (13) is adapted to heat the gas from the fuel gas source (2); and a temperature sensor (15), adapted to measure the fuel gas temperature between the outlet (132) of the heater (13) and the gas turbine (3); characterized in that the fuel gas treatment circuit (1) further comprises: a recirculator (17) having and inlet (171) and an outlet (172), wherein the outlet (172) of the recirculator (17) is coupled with the fuel gas source (2), wherein the recirculator (17) is adapted to circulate the fuel gas mass flow from the heater (13) to the fuel gas source (2); and a recirculation shut-off valve (19) coupled in series with the recirculator (17), wherein the recirculation shut-off valve (19) is adapted to close and the shut-off member (32) of the gas turbine (3) is adapted to open, allowing the warmed gas to feed the gas turbine (3), when the temperature sensor (15) measures a temperature equal or greater than a set beforehand temperature threshold of the fuel gas.
2. The fuel gas treatment circuit (1) of claim 1, wherein the recirculator (17) is a compressor.
3. The fuel gas treatment circuit (1) of claim 1, wherein the recirculator (17) is a Venturi tube.
4. The fuel gas treatment circuit (1) according to any one of the preceding claims, further comprising: a recirculation valve (18), coupled with the recirculator (17) and an external shut-off valve (14) coupled with the heater outlet (132), wherein the recirculation valve (18) is provided with a vent (181) to the atmosphere, for venting at least part of the gas mass flow contained between the external shut-off valve (14) and the gas turbine shut-off member (32), into the atmosphere, when the external shut-off valve (14) is closed and the gas turbine shut-off member (32) is closed and before the start-up of the gas turbine (3), reduce the pressure of the fuel gas contained between the external shut-off valve (14) and the gas turbine shutoff member (32).
5. The fuel gas treatment circuit (1) according to any one of the preceding claims, comprising a fuel gas vent valve (16) connected between the external shut-off valve (14) and the gas turbine shut-off member (32), for venting at least a part of the fuel gas contained between the external shut-off valve (14) and the gas turbine shutoff member (32) to the atmosphere after gas turbine (3) shut down.
6. The fuel gas treatment circuit (1) according to any one of the preceding claims, comprising a control logic unit (U), comprising: a processor (41); a bus (42), which the processor (41) is connected to; a database (43), connected to the bus (42), so as to be accessed and controlled by the processor (41); computer-readable memory (44), also connected to the bus (42), so as to be accessed and controlled by the processor (41); and a receiving-transmitting module (45), connected to the bus (42), wherein the processor (41) is configured to allow the receiving-transmitting module (45) to receive the temperature signal detected by the temperature sensor (15), and the transmission of the control signals to open or close the recirculation shut-off valve (19) and the shut-off member (32).
7. A method (5) for starting up a gas turbine (3) by the fuel gas adduced from a gas source (2), wherein the gas turbine (3) comprises a shut-off member (32) for shutting down the fuel gas supply to the gas turbine (3), wherein the method comprises the steps of: heating (51) the gas from the fuel gas source (2); and measuring (52) the fuel gas temperature before the fuel gas enters into the gas turbine (3); characterized in that the method (5) further comprises the steps of: circulating (53) the gas flow heated in the heating step (51), reintroducing the heated gas into the gas source (2); and interrupting (54) the recirculation of the gas of the circulating step (53), and opening the shut-off member (32) of the gas turbine (3), so as to feed the gas turbine (3) with the heated gas, when the temperature of the gas measured in the measuring step (52) is equal or greater than a set beforehand temperature threshold of the gas.
8. The method (5) of claim 7, wherein the circulation the gas flow heated in heating step (51) is carried out by a recirculator (17).
9. The method (5) according to any one of claims 7 or 8, wherein the gas heating step (51) from the fuel gas source (2) is performed by a heater (13).
10. The method (5) of claim 9, wherein an external shut-off valve (14) is connected in series between the heater (13) and the shut-off member (32) of the gas turbine (3), and wherein the method (5) further comprises the step of venting at least a part of the gas mass flow contained between the external shut-off valve (14) and the gas turbine shut-off member (32), into the atmosphere, when the external shut-off valve (14) is closed and the gas turbine shut-off member (32) is closed and before the start-up of the gas turbine (3), reduce the pressure of the fuel gas contained between the external shut-off valve (14) and the gas turbine shut-off member (32).
11. The method (5) according to any one of claims 7-10, wherein the measuring step (52) of the fuel gas temperature is carried out by a temperature sensor (15).
12. The method (5) according to any one of claims 7-11, wherein the fuel gas treatment circuit (1) comprises a fuel gas vent valve (16) and a fuel gas shut-off element (14) placed between the heater outlet (132) and the shut-off member (32), and wherein the gas vent element (16) is placed between the gas shut-off element (14) and the shut-off member (32) of the gas turbine (3), wherein the method (5) further comprises the step of closing the gas shut-off element (14) while opening the fuel gas vent valve (16) and closing the shut-off member (32) of the gas turbine (3).
13. A computer program, comprising instructions which, when the program is executed by a computer, causes the computer to carry out the steps of the method of any one of claims 7-12.
14. A computer-readable storage medium, comprising the instructions which, when executed by a computer, cause the computer to carry out the steps of the method of any one of claims 7-12.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT202000002277 | 2020-09-28 | ||
| PCT/EP2021/025353 WO2022063429A1 (en) | 2020-09-28 | 2021-09-16 | Gas turbine fuel treatment circuit and method for starting up a gas turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB202305393D0 GB202305393D0 (en) | 2023-05-24 |
| GB2614839A true GB2614839A (en) | 2023-07-19 |
Family
ID=86378795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2305393.7A Pending GB2614839A (en) | 2020-09-28 | 2021-09-16 | Gas turbine fuel treatment circuit and method for starting up a gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2614839A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11210492A (en) * | 1998-01-20 | 1999-08-03 | Toshiba Corp | Fuel supply device for gas turbine plant, method of warming-up operation of the device and method of cooling-down operation of the same |
| WO2014008267A1 (en) * | 2012-07-05 | 2014-01-09 | United Technologies Corporation | Fuel preheating using electric pump |
| US20170198640A1 (en) * | 2014-05-26 | 2017-07-13 | Safran Power Units | Device and method for pre-heating fuel in a turbomachine |
| CN206972383U (en) * | 2017-07-31 | 2018-02-06 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of heated by natural gas system for Combined cycle gas-steam turbine |
-
2021
- 2021-09-16 GB GB2305393.7A patent/GB2614839A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11210492A (en) * | 1998-01-20 | 1999-08-03 | Toshiba Corp | Fuel supply device for gas turbine plant, method of warming-up operation of the device and method of cooling-down operation of the same |
| WO2014008267A1 (en) * | 2012-07-05 | 2014-01-09 | United Technologies Corporation | Fuel preheating using electric pump |
| US20170198640A1 (en) * | 2014-05-26 | 2017-07-13 | Safran Power Units | Device and method for pre-heating fuel in a turbomachine |
| CN206972383U (en) * | 2017-07-31 | 2018-02-06 | 中国电力工程顾问集团西北电力设计院有限公司 | A kind of heated by natural gas system for Combined cycle gas-steam turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| GB202305393D0 (en) | 2023-05-24 |
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