EP2519717A2 - Combined-cycle plant for the production of electric and thermal energy and method for operating said plant - Google Patents

Combined-cycle plant for the production of electric and thermal energy and method for operating said plant

Info

Publication number
EP2519717A2
EP2519717A2 EP10830927A EP10830927A EP2519717A2 EP 2519717 A2 EP2519717 A2 EP 2519717A2 EP 10830927 A EP10830927 A EP 10830927A EP 10830927 A EP10830927 A EP 10830927A EP 2519717 A2 EP2519717 A2 EP 2519717A2
Authority
EP
European Patent Office
Prior art keywords
steam
condensate
low pressure
steam turbine
heat exchanger
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.)
Withdrawn
Application number
EP10830927A
Other languages
German (de)
French (fr)
Inventor
Ferdinando PRATICÒ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ansaldo Energia SpA
Original Assignee
Ansaldo Energia SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ansaldo Energia SpA filed Critical Ansaldo Energia SpA
Publication of EP2519717A2 publication Critical patent/EP2519717A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1807—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines
    • F22B1/1815—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines using the exhaust gases of gas-turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
    • F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
    • F01K17/025—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic in combination with at least one gas turbine, e.g. a combustion gas turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]

Definitions

  • the present invention relates to a combined-cycle plant for the production of electric and thermal energy and to a method for operating such a plant .
  • a combined-cycle plant for the production of electric and thermal energy generally comprises a gas turbine unit, a steam turbine unit, a boiler and a district-heating unit, provided with a heat exchanger supplied with steam drawn from the steam turbine unit.
  • the steam turbine unit comprises a low-pressure steam turbine, a medium-pressure steam turbine, a high- pressure steam turbine and a condenser.
  • the steam used to supply the heat exchanger is drawn upstream of the low-pressure steam turbine.
  • the amount of thermal energy which may be generated by the district-heating unit is thus limited by the amount of steam which should necessarily evolve in the low-pressure steam turbine .
  • the present invention relates to a combined-cycle plant for the production of electric and thermal energy comprising:
  • a steam turbine unit comprising a low-pressure steam turbine
  • a district-heating unit comprising:
  • thermoelectric heat exchanger for transferring heat to a district-heating fluid; the heat exchanger being provided with a condensate collecting vessel;
  • a flash tank vessel which is designed to receive condensate from the condensate collecting vessel and to generate and supply steam to a first point upstream of the inlet of the low pressure steam turbine .
  • the present invention relates to a method for operating a combined- cycle plant for the production of electric and thermal energy comprising:
  • a steam turbine unit comprising a low-pressure steam turbine
  • a district-heating unit comprising a heat exchanger for transferring heat to a district-heating fluid; the heat exchanger being provided with a condensate collecting vessel;
  • the method comprising the step of generating steam from the condensate of the condensate collecting vessel by means of a flash tank vessel and the step of supplying the generated steam to a first point upstream of the inlet of the low-pressure steam turbine .
  • reference number 1 indicates a combined-cycle plant for the production of electric and thermal energy comprising a gas turbine unit 2, a steam turbine unit 3 , a boiler 4 , a steam circuit 5 and a district-heating unit 6.
  • the gas turbine unit 2 is the first engine of the combined-cycle plant 1 and may be supplied with both gas and diesel .
  • the gas turbine unit 2 is connected to a generator 8 and comprises a compressor 9, a combustion chamber 10, a gas turbine 11 and a shaft 12 pivoting around an axis of the gas turbine 11 to operate the generator 8.
  • the steam turbine unit 3 is coupled with a generator 14 and comprises a shaft 15 , a high-pressure turbine 16, a medium-pressure turbine 17, a low-pressure steam turbine 18 and a condenser 19.
  • Boiler 4 extends from the outlet of the gas turbine unit 11 to the intake 22 of a chimney (not shown in the figure) and recovers the residual heat of the combustion fumes generated by the gas turbine unit 2.
  • boiler 4 contains a part of the steam circuit 5 and comprises a fumes flowing chamber 21, through which the exhaust fumes from the gas turbine unit 2 flow.
  • the combustion fumes from the gas turbine unit 2 are substantially supplied in direction Dl into the fumes flowing chamber 21, while the steam is substantially supplied in a direction D2 opposite to direction Dl .
  • the steam circuit 5 supplies the steam turbine unit 3 and passes through boiler 4.
  • the steam circuit 5 comprises a line 24, which connects condenser 19 to boiler 4 and along which a pump 25 is arranged to extract the condensate from condenser 19.
  • Line 24 supplies a thermal exchange module 26, which is arranged inside the fumes flowing chamber 21 at the chimney intake 22 and serves the function of rising the temperature of the condensate from condenser 19.
  • line 24 Downstream of the thermal exchange module 26 in direction D2, line 24 supplies an evaporator/degasser 28, which is inside boiler 4, a recirculation line 29, which extends outside boiler 4, and a condensate draw line 31 which, as will be described in more detail below, supplies a heat exchanger of the district-heating unit 6.
  • the recirculation line 29 comprises a recirculation pump 30 and serves the function of rising the condensate temperature in order to avoid condensation phenomena of the aqueous vapour contained in the fumes .
  • the steam circuit 5 has a low-pressure delivery line 32 to supply the low-pressure steam turbine 18, a medium- pressure delivery line 33 to supply the medium-pressure steam turbine 17, and a high-pressure delivery line 34 to supply the medium-pressure steam turbine 16.
  • the low-pressure delivery line 32 connects the evaporator/degasser 28 to the low-pressure steam turbine 18 and is connected to an outlet line 36 of the medium-pressure steam turbine 17.
  • the low-pressure delivery line 32 comprises a low-pressure thermal exchange module 37 and an inlet valve 38, which regulates the amount of steam entering the low-pressure steam turbine 18.
  • the medium-pressure delivery line 33 comprises a plurality of medium-pressure thermal exchange modules 38, a medium-pressure superheater 40 and a de- superheater 41, which comes into operation whenever the steam temperature is too high.
  • the high-pressure delivery line 34 comprises a plurality of high-pressure thermal exchange modules 42, a high-pressure superheater 43 and a de- superheater 44, which comes into operation whenever the steam temperature is too high.
  • the district-heating unit 6 comprises a condensate draw line 31, a steam draw line 45, a heat exchanger 46, a condensate collecting vessel 47 to collect the condensate generated in the heat exchanger 46, and a quick evaporation vessel 48, commonly called “flash tank” .
  • the heat exchanger 46 transfers the heat of the condensate from the condensate draw line 31 and the heat of the steam from the steam draw line 45 to a district- heating fluid.
  • the district-heating fluid is preferably water and is usually used for domestic and industrial heating systems.
  • the flash tank vessel 48 is subjected to depressurization between the inlet and the outlet, which determines the quick evaporation of a part of the condensate from the condensate collecting vessel 47, which is under saturation conditions.
  • the pressure upstream of the flash tank vessel 48 is, in fact, higher than the pressure downstream of the flash tank vessel 48.
  • the pressure upstream of the flash tank vessel 48 is equal to the pressure of the condensate collecting vessel 47 and is between about 1.7 and about 3.5 bar, preferably about 2.5 bar.
  • the pressure downstream of the flash tank vessel 48 is equal to the inlet pressure of the low-pressure steam turbine 18, which is usually slightly higher than the pressure of condenser 19.
  • the pressure downstream of the flash tank vessel 48 is between about 0.02 bar and 0.06 bar, preferably 0.03 bar.
  • the steam generated by the flash tank vessel 48 is supplied to the inlet of the low-pressure steam turbine 18. Namely, the steam generated by the flash tank vessel 48 is supplied to a point downstream of the inlet valve 38.
  • the district-heating unit 6 further comprises a condensate discharge line 49 which connects the flash tank vessel 48 to the line 24 of the steam circuit 5 and which allows the condensate generated in the flash tank vessel 48 to be discharged.
  • the condensate generated by the heat exchanger 45 is advantageously transformed into steam which may be used again to supply the low-pressure steam turbine 18.
  • the amount of steam which supplies the heat exchanger 46 and which is drawn through the steam draw line 45 may be increased. This results in an increase of about 7% in the thermal power generated by the district-heating unit.
  • the condensate drawn through the condensate draw line 31 contributes to increase the thermal power produced by the district-heating unit 6 by about 7%.
  • the heat used to heat the condensate drawn from the condensate draw line 31 is the heat which is usually discharged through the chimney intake 22 of boiler 4 and which is not normally exploited.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

A combined- cycle plant for the production of electric and thermal energy is provided with: a gas turbine unit (2); a steam turbine unit (3) comprising a low-pressure steam turbine (18); a boiler (4); and a district -heating unit (6), which is provided with a heat exchanger (46) for transferring heat to a district-heating fluid and with a flash tank vessel (48). The heat exchanger (46) is provided with a condensate collecting vessel (46) and the flash tank vessel (47) is designed to receive condensate from the condensate collecting vessel (46), generate steam and supply the generated steam to a first point upstream of the inlet of the low-pressure steam turbine (18).

Description

COMBINED-CYCLE PLANT FOR THE PRODUCTION OF ELECTRIC AND THERMAL ENERGY, AND METHOD FOR OPERATING SUCH A PLANT
TECHNICAL FIELD
The present invention relates to a combined-cycle plant for the production of electric and thermal energy and to a method for operating such a plant .
BACKGROUND ART
A combined-cycle plant for the production of electric and thermal energy generally comprises a gas turbine unit, a steam turbine unit, a boiler and a district-heating unit, provided with a heat exchanger supplied with steam drawn from the steam turbine unit.
The steam turbine unit comprises a low-pressure steam turbine, a medium-pressure steam turbine, a high- pressure steam turbine and a condenser.
In known type plants, the steam used to supply the heat exchanger is drawn upstream of the low-pressure steam turbine. The amount of thermal energy which may be generated by the district-heating unit is thus limited by the amount of steam which should necessarily evolve in the low-pressure steam turbine .
DISCLOSURE OF INVENTION
It is an object of the present invention to provide a combined-cycle plant which is free from the prior art drawbacks described herein; in particular, it is an object of the invention to provide a combined-cycle plant which is capable of generating a higher thermal energy than that generated by prior art combined-cycle plants.
In accordance with these objects, the present invention relates to a combined-cycle plant for the production of electric and thermal energy comprising:
a gas turbine unit;
a steam turbine unit comprising a low-pressure steam turbine;
a boiler; and
a district-heating unit comprising:
- a heat exchanger for transferring heat to a district-heating fluid; the heat exchanger being provided with a condensate collecting vessel;
- a flash tank vessel, which is designed to receive condensate from the condensate collecting vessel and to generate and supply steam to a first point upstream of the inlet of the low pressure steam turbine .
It is a further object of the invention to provide a method of operating a combined-cycle plant which is capable of determining the generation of a greater thermal energy than that generated by prior art combined-cycle plants.
In accordance with these objects, the present invention relates to a method for operating a combined- cycle plant for the production of electric and thermal energy comprising:
a gas turbine unit;
a steam turbine unit comprising a low-pressure steam turbine;
a boiler; and
- a district-heating unit comprising a heat exchanger for transferring heat to a district-heating fluid; the heat exchanger being provided with a condensate collecting vessel;
the method comprising the step of generating steam from the condensate of the condensate collecting vessel by means of a flash tank vessel and the step of supplying the generated steam to a first point upstream of the inlet of the low-pressure steam turbine .
BRIEF DESCRIPTION OF THE DRAWING
Further features and advantages of the present invention will become apparent from the following description of a non-limiting, exemplary embodiment thereof, with reference to the accompanying figure, which is a diagrammatic representation, with parts removed for clarity, of a combined-cycle plant for the production of electric and thermal energy in accordance with the present invention.
BEST MODE FOR CARRYING OUT THE INVENTION
In the figure, reference number 1 indicates a combined-cycle plant for the production of electric and thermal energy comprising a gas turbine unit 2, a steam turbine unit 3 , a boiler 4 , a steam circuit 5 and a district-heating unit 6.
The gas turbine unit 2 is the first engine of the combined-cycle plant 1 and may be supplied with both gas and diesel . The gas turbine unit 2 is connected to a generator 8 and comprises a compressor 9, a combustion chamber 10, a gas turbine 11 and a shaft 12 pivoting around an axis of the gas turbine 11 to operate the generator 8.
The steam turbine unit 3 is coupled with a generator 14 and comprises a shaft 15 , a high-pressure turbine 16, a medium-pressure turbine 17, a low-pressure steam turbine 18 and a condenser 19.
Boiler 4 extends from the outlet of the gas turbine unit 11 to the intake 22 of a chimney (not shown in the figure) and recovers the residual heat of the combustion fumes generated by the gas turbine unit 2. In particular, boiler 4 contains a part of the steam circuit 5 and comprises a fumes flowing chamber 21, through which the exhaust fumes from the gas turbine unit 2 flow. In essence, the combustion fumes from the gas turbine unit 2 are substantially supplied in direction Dl into the fumes flowing chamber 21, while the steam is substantially supplied in a direction D2 opposite to direction Dl .
The steam circuit 5 supplies the steam turbine unit 3 and passes through boiler 4. In particular, the steam circuit 5 comprises a line 24, which connects condenser 19 to boiler 4 and along which a pump 25 is arranged to extract the condensate from condenser 19.
Line 24 supplies a thermal exchange module 26, which is arranged inside the fumes flowing chamber 21 at the chimney intake 22 and serves the function of rising the temperature of the condensate from condenser 19.
Downstream of the thermal exchange module 26 in direction D2, line 24 supplies an evaporator/degasser 28, which is inside boiler 4, a recirculation line 29, which extends outside boiler 4, and a condensate draw line 31 which, as will be described in more detail below, supplies a heat exchanger of the district-heating unit 6.
The recirculation line 29 comprises a recirculation pump 30 and serves the function of rising the condensate temperature in order to avoid condensation phenomena of the aqueous vapour contained in the fumes .
At the outlet of the evaporator/degasser 28, the steam circuit 5 has a low-pressure delivery line 32 to supply the low-pressure steam turbine 18, a medium- pressure delivery line 33 to supply the medium-pressure steam turbine 17, and a high-pressure delivery line 34 to supply the medium-pressure steam turbine 16.
In particular, the low-pressure delivery line 32 connects the evaporator/degasser 28 to the low-pressure steam turbine 18 and is connected to an outlet line 36 of the medium-pressure steam turbine 17.
The low-pressure delivery line 32 comprises a low- pressure thermal exchange module 37 and an inlet valve 38, which regulates the amount of steam entering the low-pressure steam turbine 18.
The medium-pressure delivery line 33 comprises a plurality of medium-pressure thermal exchange modules 38, a medium-pressure superheater 40 and a de- superheater 41, which comes into operation whenever the steam temperature is too high.
The high-pressure delivery line 34 comprises a plurality of high-pressure thermal exchange modules 42, a high-pressure superheater 43 and a de- superheater 44, which comes into operation whenever the steam temperature is too high.
The district-heating unit 6 comprises a condensate draw line 31, a steam draw line 45, a heat exchanger 46, a condensate collecting vessel 47 to collect the condensate generated in the heat exchanger 46, and a quick evaporation vessel 48, commonly called "flash tank" .
The heat exchanger 46 transfers the heat of the condensate from the condensate draw line 31 and the heat of the steam from the steam draw line 45 to a district- heating fluid.
The district-heating fluid is preferably water and is usually used for domestic and industrial heating systems.
The flash tank vessel 48 is subjected to depressurization between the inlet and the outlet, which determines the quick evaporation of a part of the condensate from the condensate collecting vessel 47, which is under saturation conditions.
The pressure upstream of the flash tank vessel 48 is, in fact, higher than the pressure downstream of the flash tank vessel 48. In particular, the pressure upstream of the flash tank vessel 48 is equal to the pressure of the condensate collecting vessel 47 and is between about 1.7 and about 3.5 bar, preferably about 2.5 bar.
The pressure downstream of the flash tank vessel 48 is equal to the inlet pressure of the low-pressure steam turbine 18, which is usually slightly higher than the pressure of condenser 19. In particular, the pressure downstream of the flash tank vessel 48 is between about 0.02 bar and 0.06 bar, preferably 0.03 bar.
The steam generated by the flash tank vessel 48 is supplied to the inlet of the low-pressure steam turbine 18. Namely, the steam generated by the flash tank vessel 48 is supplied to a point downstream of the inlet valve 38.
The district-heating unit 6 further comprises a condensate discharge line 49 which connects the flash tank vessel 48 to the line 24 of the steam circuit 5 and which allows the condensate generated in the flash tank vessel 48 to be discharged.
The condensate generated by the heat exchanger 45 is advantageously transformed into steam which may be used again to supply the low-pressure steam turbine 18.
Thereby, the amount of steam which supplies the heat exchanger 46 and which is drawn through the steam draw line 45 may be increased. This results in an increase of about 7% in the thermal power generated by the district-heating unit.
Furthermore, the condensate drawn through the condensate draw line 31 contributes to increase the thermal power produced by the district-heating unit 6 by about 7%. Moreover, the heat used to heat the condensate drawn from the condensate draw line 31 is the heat which is usually discharged through the chimney intake 22 of boiler 4 and which is not normally exploited.
Finally, it is apparent that modifications and variations may be made to the plant and method described herein without departing from the scope of the appended claims.

Claims

1. Combined-cycle plant for the production of electric and thermal energy comprising:
a gas turbine unit (2) ;
a steam turbine unit (3) comprising a low pressure steam turbine (18) ;
a boiler (4) ; and
a district-heating unit (6) comprising:
- a heat exchanger (46) for transferring heat to a district-heating fluid; the heat exchanger (46) being provided with a condensate collecting vessel (47) ;
a flash tank vessel (48) , which is designed to receive condensate from the condensate collecting vessel (47) and to supply steam to a first point along a low pressure supplying line (32) upstream of the inlet of the low pressure steam turbine (18).
2. Plant according to claim 1, comprising a steam draw line (45) designed to draw steam from a second point along the low pressure supplying line (32) upstream of the inlet of the low pressure steam turbine (18) and to supply the drawn steam to the heat exchanger (46) .
3. Plant according to claim 2, wherein the second point is arranged upstream of the first point along the low pressure supplying line (32) .
4. Plant according to anyone of the foregoing claims, wherein the boiler (4) extends from the outlet of the gas turbine unit (2) to the intake (22) of a chimney and comprises a fumes flowing chamber (21) , through which the exhaust fumes of the gas turbine unit (2) flow.
5. Plant according to anyone of the foregoing claims, comprising a steam circuit ( 5 ) , which supplies steam to the steam turbine unit (3) and goes through the boiler (4 ) .
6. Plant according to claim 5 , wherein the district-heating unit (6) comprises a condensate draw line (31) designed to draw condensate from the steam circuit (5) and to supply the drawn condensate to the heat exchanger (46) .
7. Plant according to anyone of the foregoing claims, wherein the pressure at the inlet of the flash tank vessel (48) is greater than the pressure at the outlet of the flash tank vessel (48) .
8. Method for operating a combined cycle plant for the production of electric and thermal energy comprising:
- a gas turbine unit (2) ;
a steam turbine unit (3) comprising a low pressure steam turbine (18) ;
a boiler (4) ; and
a district-heating unit (6) comprising a heat exchanger (46) for transferring heat to a district- heating fluid; the heat exchanger (46) being provided with a condensate collecting vessel (47) ; the method comprising the step of producing steam from the condensate of the condensate collecting vessel (47) by means of a flash tank vessel (48) and the step of supplying the produced steam to a first point along a low pressure supplying line (32) upstream of the inlet of the low pressure steam turbine (18) .
9. Method according to claim 8 , wherein the combined-cycle plant (1) comprises a steam circuit (5) which supplies steam to the steam turbine unit (3) and goes through the boiler (4); the method comprising the step of supplying condensate drawn from the steam circuit to the heat exchanger (46) .
10. Method according to claim 8 or 9, comprising the step of supplying to the heat exchanger (46) steam drawn from a second point along the low pressure supplying line (32) upstream of the inlet of the low pressure steam turbine (18) of the steam turbine unit (3) .
11. Method according to claim 10, wherein the second point is arranged, upstream of the first point along the low pressure supplying line (32) .
EP10830927A 2009-12-29 2010-12-29 Combined-cycle plant for the production of electric and thermal energy and method for operating said plant Withdrawn EP2519717A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2009A002315A IT1397210B1 (en) 2009-12-29 2009-12-29 COMBINED CYCLE PLANT FOR THE PRODUCTION OF ELECTRICAL ENERGY AND THERMAL ENERGY AND FUNCTIONING METHOD OF SUCH SYSTEM
PCT/IB2010/003360 WO2011080576A2 (en) 2009-12-29 2010-12-29 Combined-cycle plant for the production of electric and thermal energy and method for operating said plant

Publications (1)

Publication Number Publication Date
EP2519717A2 true EP2519717A2 (en) 2012-11-07

Family

ID=42124326

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10830927A Withdrawn EP2519717A2 (en) 2009-12-29 2010-12-29 Combined-cycle plant for the production of electric and thermal energy and method for operating said plant

Country Status (3)

Country Link
EP (1) EP2519717A2 (en)
IT (1) IT1397210B1 (en)
WO (1) WO2011080576A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104595031A (en) * 2013-10-31 2015-05-06 阿尔斯通技术有限公司 Combined cycle power plant with improved efficiency
CN104595031B (en) * 2013-10-31 2018-02-09 通用电器技术有限公司 Combined cycle power plant with improved efficiency

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Publication number Priority date Publication date Assignee Title
CN104864730A (en) * 2015-05-25 2015-08-26 成都中冶节能环保工程有限公司 Flow-limiting type waste heat power generating system based on submerged arc furnace
JP2017040201A (en) * 2015-08-19 2017-02-23 株式会社東芝 Power generation system and operation method for same

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GB2100356A (en) * 1981-06-12 1982-12-22 Wimpey M E & C George Ltd Power plant having steam and air turbines
US4402183A (en) * 1981-11-19 1983-09-06 General Electric Company Sliding pressure flash tank
CA2102637A1 (en) * 1992-11-13 1994-05-14 David H. Dietz Circulating fluidized bed reactor combined cycle power generation system
US5640842A (en) * 1995-06-07 1997-06-24 Bronicki; Lucien Y. Seasonally configurable combined cycle cogeneration plant with an organic bottoming cycle

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104595031A (en) * 2013-10-31 2015-05-06 阿尔斯通技术有限公司 Combined cycle power plant with improved efficiency
CN104595031B (en) * 2013-10-31 2018-02-09 通用电器技术有限公司 Combined cycle power plant with improved efficiency

Also Published As

Publication number Publication date
WO2011080576A2 (en) 2011-07-07
IT1397210B1 (en) 2013-01-04
WO2011080576A3 (en) 2012-01-05
WO2011080576A8 (en) 2012-07-19
ITMI20092315A1 (en) 2011-06-30

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