EP3775504A1 - Kraftwerk mit generatorkühlung - Google Patents
Kraftwerk mit generatorkühlungInfo
- Publication number
- EP3775504A1 EP3775504A1 EP19723673.0A EP19723673A EP3775504A1 EP 3775504 A1 EP3775504 A1 EP 3775504A1 EP 19723673 A EP19723673 A EP 19723673A EP 3775504 A1 EP3775504 A1 EP 3775504A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- power plant
- generator
- cooling
- heat exchanger
- heat
- 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- Withdrawn
Links
- 238000001816 cooling Methods 0.000 title claims description 33
- 239000000112 cooling gas Substances 0.000 claims abstract description 22
- 239000003507 refrigerant Substances 0.000 claims abstract description 14
- 239000000498 cooling water Substances 0.000 claims description 21
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 claims 1
- 239000000284 extract Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 11
- 239000003570 air Substances 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241000158147 Sator Species 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/006—Auxiliaries or details not otherwise provided for
-
- 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
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
- F01K25/103—Carbon dioxide
-
- 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
- F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
- F01K9/003—Plants characterised by condensers arranged or modified to co-operate with the engines condenser cooling circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
Definitions
- the invention relates to a power plant with a generator ratorkühlgas cooled generator and at least one Ge neratorkühlgas heat withdrawing heat exchanger.
- Power plants of the type mentioned are known in the prior Tech technology in a variety of designs. They can be designed as a gas turbine, as a steam turbine or as a gas and steam turbine power plant. A variety of power plant components requires cooling, on the one hand to dissipate the falling heat loss and on the other to increase the performance of the power plant. This also applies to the generator used for generating electricity, which is usually cooled with at least one heat exchanger aposgekühltem cooling gas.
- the at least one heat exchanger is usually connected to a ge closed cooling water system of the power plant, through which other heat exchangers are supplied with cooling water, for example, those for lubrication or Dichtölküh ment, for cooling of pumps or the like.
- the remindküh treatment of the cooling water of the cooling water circuit can be done on ver different ways, for example by Frischwas ser trimlaufksselung, circulation cooling using a cooling tower or air-cooled coolers, etc.
- a possible achievable electrical power to the generator is dependent on the given for cooling the generator windings before given cold gas temperature of the generator cooling gas, so the generator cooling gas temperature when entering the generator.
- the lower the cold gas temperature the more mechanical energy can be converted into electrical energy in the generator.
- the generator cooling gas is recovered as described above via at least one heat exchanger, which is cooled by the cooling water system.
- the cold gas temperature of the generator cooling gas for the generator cooling is coupled to thedewas sertemperatur of the at least one heat exchanger by flowing cooling water.
- the cooling water temperature is in turn dependent on the re-cooling and therefore can not be lowered arbitrarily.
- the achievable on Genera tor electrical power limits are set.
- the present invention provides a power plant of the type mentioned, which is characterized marked characterized in that the at least one heat exchanger component is part of a refrigerant flowed through a refrigerator.
- the at least one heat exchanger component is part of a refrigerant flowed through a refrigerator.
- This is on the one hand to the advantage that for cooling the generator cooling gas single Lich a single heat transfer from the generator cooling gas to the refrigerant takes place, which is energetically very effective.
- the chiller is completely independent of the cooling water system, so that the re-cooling of the generator cooling gas are barely set limits.
- a refrigeration machine can be retrofitted with comparatively little effort. Accordingly, the cooling of a generator of an existing power plant can be adapted to growing demands that have arisen, for example, by performance-enhancing measures men on the turbine, without having to intervene in the best existing cooling water system.
- the refrigerating machine is a compression refrigerating machine and has an evaporator formed by the at least one heat exchanger, a compressor, a condenser and a throttle,
- a compressor for example, in the form of an expansion valve or a capillary tube - on, which are integrated in a closed circuit.
- a throttle for example, in the form of an expansion valve or a capillary tube - on, which are integrated in a closed circuit.
- the refrigerant of the refrigeration machine is tetrafluoroethane (R-134a) or carbon dioxide.
- the chiller is arranged and forms out that it extracts heat only the generator cooling gas. This is to the advantage that the interpretation of the chiller must be made solely based on the cooling demand of the generator.
- the chiller is provided as a separate retrofit unit, so that this can be easily retrofitted in a power plant, with other components of the power plant may be ge slightly adapt. In particular, no interventions in the existing cooling water system are required.
- another of the generator cooling heat entzie heat exchanger is provided, which is not part of a cooling water flowed through cooling water system.
- the re dundante cooling of the generator cooling gas is to the effect of the fact that the failure of the refrigerator or the wide ren heat exchanger is always a safe system operation at re Jerusalem power is guaranteed.
- At least one further cooling system for cooling the refrigerant and / or for cooling len components of the refrigerator is connected to the chiller.
- the present invention proposes to use a refrigeration machine for generating a power plant according to the invention. Further features and advantages of the present invention, the ge with the reference to the following description of power plants according to embodiments of the present invention with reference to the accompanying drawings clear. That's it
- Figure 1 is a schematic view of a power plant according to a first embodiment of the present invention.
- Figure 2 is a schematic view of a power plant according to a second embodiment of the present invention.
- FIG. 1 shows a power plant 1 according to a first embodiment of the present invention.
- the power plant 1 in the present case is a gas turbine power plant, which could also be any other type of power plant.
- the power plant 1 comprises an air compressor 2, a gas turbine 3, a generator 4 and a transformer 5.
- air compressor 2 a gas turbine 3
- generator 4 a transformer 5.
- the combustion gas is supplied to the gas turbine 3 and expanded therein while driving a gas turbine rotor 6.
- the gas turbine rotor 6 drives the generator 4, which converts the kinetic energy into electrical energy.
- the transformer 5 transforms the electrical energy so that it can be supplied to a power supply network.
- the generator 4 is cooled by a generator cooling gas, which is circulated by means not shown in detail in a generator cooling gas circuit 7.
- a heat exchanger 8 is provided, which forms part of a refrigerant flowed through by a refrigerant machine 9.
- the chiller 9 comprises in addition to the evaporator formed by the heat exchanger 8 Com compressor 10, a condenser 11 and a throttle 12 through which the refrigerant of the refrigerator 9 is passed via corresponding lines in a closed circuit.
- the refrigerant is, for example, tetrafluoroethane (R-134a), and in principle other refrigerants can also be used.
- the condenser 11 of the refrigerator 9 is cooled, for example, by using ambient air. Cooling water cooling is optionally possible with ent speaking integration into the cooling water system of the system.
- the compressor 10 of the refrigerator 9 is cooled in the present case with air, which is gurge cooled in a further heat exchanger 13, which may also be closed to the said cooling water system.
- a further heat exchanger 13 which may also be closed to the said cooling water system.
- the generator removes cooling gas to the generator heat is recooled in the heat exchanger 8 of the refrigerator 9 and is then passed again in the genes generator 4.
- the generator cooling gas withdrawn heat is transferred to the zirku in the chiller 9 lating refrigerant, which is evaporated, compressed in Kompres sor 10 and condensed in the condenser 11.
- the condensate is then expanded using the throttle 12 and again the heat exchanger serving as an evaporator 8 supplied.
- the recooling of the generator coolant gas thus takes place exclusively via the chiller 9. This is the case advantageous that the cooling capacity of the generator cooling is fully constantly independent of other cooling systems of the power plant 1 is adjustable, in particular independent of the previously he mentioned cooling water system.
- an energetically favorable, very powerful and flexible generator cooling is provided, which makes it possible to convert very high mechanical power to the generator shaft into electrical energy.
- Another advantage is that the chiller 9 can be retrofitted due to their independence from other cooling systems of the power plant 1 in a simple manner, the cooling capacity of a generator 4 be already existing existing power plant 1 need improvement.
- FIG. 2 shows a power plant 1 according to a second embodiment of the present invention. This differs only to the effect of the power plant 1 described above, that the generator cooling gas in an additional devistau shear 14 via cooling water of the aforementioneddewassersys system 15 is recooled before it flows through the heat exchanger 8 of the chiller 9.
- the heat exchanger 14 is already available at be stationary generators and serves as a main cooling and / or as a base cooling, the chiller should 9 fail or be turned off.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018208281.2A DE102018208281A1 (de) | 2018-05-25 | 2018-05-25 | Kraftwerk mit Generatorkühlung |
| PCT/EP2019/060579 WO2019223948A1 (de) | 2018-05-25 | 2019-04-25 | Kraftwerk mit generatorkühlung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3775504A1 true EP3775504A1 (de) | 2021-02-17 |
Family
ID=66529965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19723673.0A Withdrawn EP3775504A1 (de) | 2018-05-25 | 2019-04-25 | Kraftwerk mit generatorkühlung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3775504A1 (de) |
| KR (1) | KR20210014654A (de) |
| DE (1) | DE102018208281A1 (de) |
| WO (1) | WO2019223948A1 (de) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH304499A (de) * | 1952-04-10 | 1955-01-15 | Melan Herbert Ing Dr | Kombinierte Anlage zur Kraft- und Wärmeerzeugung. |
| US8875515B2 (en) * | 2011-04-29 | 2014-11-04 | General Electric Company | Integrated generator cooling system |
| DE102012209811A1 (de) * | 2012-06-12 | 2013-12-12 | Bayerische Motoren Werke Aktiengesellschaft | Antriebssystem für ein Fahrzeug mit einer Brennkraftmaschine |
-
2018
- 2018-05-25 DE DE102018208281.2A patent/DE102018208281A1/de not_active Withdrawn
-
2019
- 2019-04-25 KR KR1020207036876A patent/KR20210014654A/ko not_active Ceased
- 2019-04-25 WO PCT/EP2019/060579 patent/WO2019223948A1/de not_active Ceased
- 2019-04-25 EP EP19723673.0A patent/EP3775504A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE102018208281A1 (de) | 2019-11-28 |
| KR20210014654A (ko) | 2021-02-09 |
| WO2019223948A1 (de) | 2019-11-28 |
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