EP3516178A1 - Plant and method having a thermal power plant and a process compressor - Google Patents
Plant and method having a thermal power plant and a process compressorInfo
- Publication number
- EP3516178A1 EP3516178A1 EP17761043.3A EP17761043A EP3516178A1 EP 3516178 A1 EP3516178 A1 EP 3516178A1 EP 17761043 A EP17761043 A EP 17761043A EP 3516178 A1 EP3516178 A1 EP 3516178A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- fluid
- compressor
- process fluid
- msc
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 112
- 239000012530 fluid Substances 0.000 claims abstract description 50
- 239000002918 waste heat Substances 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims description 51
- 239000012809 cooling fluid Substances 0.000 claims description 19
- 239000003990 capacitor Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000012935 Averaging Methods 0.000 claims 1
- 210000004072 lung Anatomy 0.000 claims 1
- 210000000056 organ Anatomy 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000007906 compression Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 2
- 240000002834 Paulownia tomentosa Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000013519 translation 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
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
- F01K7/40—Use of two or more feed-water heaters in series
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5826—Cooling at least part of the working fluid in a heat exchanger
Definitions
- the invention relates to a system with a thermal power plant and a single-stage or multi-stage process compressor, the thermal power plant comprising:
- a first process fluid circulates in the fluid-conductively connected elements pump, boiler, turbine, condenser, wherein the process compressor has a plurality of stages ⁇ in which a second process fluid is compressed, where provided ⁇ at least one cooling downstream of a process stage or between two process stages is, by means of which the second process fluid at least a first heat flow is withdrawn, wherein the process compressor has a drive shaft, wherein the output shaft is mechanically coupled to the on ⁇ drive shaft, so that the turbine drives the process ⁇ compressor.
- the invention relates to a method for operating a system of the type defined above.
- WO 2010/142574 arrangements are already known in which turbomachinery, including steam turbines, are used as a drive for compressors or compressor units or multi-stage compressor. In all of these arrangement designs, the efficiency of the entire arrangement is always of great importance.
- the compression of a process fluid, such as the compression of air, natural gas or carbon dioxide is always lossy in the real process, with the minimization of these losses are the focus of efforts to increase the efficiency.
- the invention has set itself the task of improving an arrangement of the type defined in the efficiency.
- the decisive advantage of the invention over the conventional arrangements or methods for operating arrangements that provide the drive of a multi-stage process compressor by means of a thermal power plant is that the waste heat from the compression process of the thermal power plant is supplied as useful heat and accordingly for Be ⁇ the heat energy plant required energy can be reduced.
- the direct mechanical coupling of the thermal power ⁇ system for transferring technical work on the compressor with the additional thermodynamic connection between the invention, intercoolers or the aftercooler of the compressor on the one hand and the preheaters before the boiler of the thermal power plant on the other hand the additional advantage that the compressor Increasing cruanforde ⁇ tion also generates increased waste heat in cooling, which there ⁇ also leads to an increased potential useful heat for the operation of the driving thermal power plant.
- the process compressor according to the invention is generally an arbitrary single-stage or multi-stage compressor with corresponding cooling between the individual compression stages or an aftercooler.
- the compacting stages can be understood to mean individual impellers or else several impellers arranged directly one behind the other.
- the compressor may in principle be a radial compressor or an axial compressor or a mixed arrangement. act of radial compressor stages and axial compressor stages.
- Particularly preferred is the embodiment of the multistage compressor ⁇ -stage transmission as compressor in which a central gear drives a plurality of compressor drive pinion shafts carrying the impellers of the compressor stages.
- At a gearbox here is usually a plurality of Verêtrstu ⁇ fen, preferably provided radial compressor stages, preferably there also mechanically fastened or supported.
- the thermal power plant is a cycle process known as the Clausius-Rankine cycle. Usually this is a so-called steam turbine as a turbine and the process fluid is usually water or water vapor. Alternatively, another, in particular an organic flues ⁇ stechnik can be used instead of water, so that the operating temperature ⁇ turfeld the process changes due to the changed process fluid.
- Cooling of the process compressor and at least one preheater of the thermal power plant is preferably accompanied by a combination of this cooling with the preheater.
- the combination has the particular advantage that no further process fluid must be used to transfer the heat energy between the preheater and the cooling.
- To be compressed second process fluid may be transmitted directly as the waste heat ⁇ useful heat to the first process fluid in the cooling system, which is combined with the heater of the thermal power plant.
- the first process fluid is particularly well suited for absorbing the waste heat from the second process fluid in the cooling or the preheater.
- the invention also finds advantageous application in a thermal power plant which already has several preheaters operated with taps of the turbine for the first process fluid or, in the case of the steam-driven turbine, the feedstock. Provides water for the boiler.
- the Anzapfmenge of the first process fluid from the turbine can be reduced expedient ⁇ SSIG, because part of the preheating already been made with the waste heat from the cooling of the process compressor. Demenfeldend the turbine generates a higher technical
- the system has a cooling line with a guided from the cooling line cooling fluid, wherein the cooling line is connected to at least one cooling of the process compressor. In this way can mitels the cooling part of the
- This cooling fluid supply can be combined with the cooling fluid supply of the thermal power plant, which has a not inconsiderable cooling fluid consumption in the condenser, so that the corresponding supply of cooling fluid for cooling the process compressor can be connected there.
- a control unit vorgese ⁇ hen which is associated with regulatory issues in the cooling fluid lines and in particular in the exchange lines between the heat engine and the process compressor.
- ⁇ SSIG if the individual system components are not necessarily in terms of the cooling or preheating dependent on each other, but also function largely independently of one another.
- Figures 1, 2 each show a schematic flow diagram of an inventive arrangement or a method according to the invention.
- Figures 1, 2 each show schematically illustrated
- a plant according to the invention A comprises a dressedkraftanla ⁇ ge WKA and a multi-stage process compressor MSC.
- the thermal power plant WKA in turn comprises a pump PMP, a boiler BOI, a turbine TRB with an output shaft SD1 and a capacitor CND.
- the turbine can advantageously also have two output ends - that is, a double output - have.
- the boiler BOI is operated either with the waste heat from a process or walls ⁇ ren fired by a fossil fuels gers. This energy supply is designated FUL.
- the boiler BOI vaporizes and overheats the first process fluid PF1, which circulates in the elements of the thermal power plant WKA connected to one another in a fluid-conducting manner.
- the turbine ⁇ TRB is preferably a steam turbine and the first process fluid PF1 is preferably water or water vapor.
- the superheated steam exiting boiler BOI is expanded in turbine TRB and then enters condenser CND, where the expanded steam is condensed to liquid and subsequently transported to the boiler pressure by pump PMP.
- the capacitor CND is supplied by means of egg ⁇ ner cooling line COL with cooling fluid CLF.
- han ⁇ delt it is preferably water that either taken from a natural heat sink and heated go there is returned or water which is taken from an at least partially artificial heat sink or supplied.
- the process compressor MSC has one or more stages ST1, STn, in which a second process fluid PF2 compresses becomes.
- a second process fluid PF2 compresses becomes.
- three Stu ⁇ fen ST1, ST2, ST3 are provided.
- the process compressor also has a plurality of cooling IC1, ICn or intermediate cooling or an aftercooler, wherein in the specific example, a first cooling IC1, a second cooling IC2 and a third cooling IC3 are provided.
- the third cooling IC3 is also a "cooling", even if no further condensing stage ST1, In this case, waste heat from the compression process is removed by means of the cooling
- the coolings IC1, ICn have connections to the cooling line COL in order to be supplied with cooling fluid CLF by the same COL for supplying the cooling IC1, ICn provided with cooling fluid CLF, as for the capacitor CND.
- the process compressor MSC has a drive shaft SD2, which is coupled by means of a clutch CPL to an output shaft SD1 of the turbine TRB of the heat power plant WKA.
- a clutch CPL can also be provided a transmission which causes a translation or reduction of the turbine speed to the process compressor MSC.
- the thermal power plant WKA has in the flow of the first process fluid PF1 between the pump PMP and the boiler BOI a preheater PH1, PHn (see in particular FIG. 2) by means of which a preheating flow PRF is respectively supplied to the process fluid.
- the turbine TRB has a first tap TB1 and a second tap TB2.
- the two taps TB1, TB2 supply a third preheater PH3 or a second preheater PH2 corresponding amounts of heat, which have a higher inlet temperature in the boiler BOI of the first process fluid PF1 result.
- the disadvantage here is that not all of the turbine TRB supplied first process fluid PF1 provides until the exit from the turbine TRB for the generation of ⁇ technical work.
- the exchange line FCC already described is provided behind the pump PMP in the circuit of the first process fluid PF1, by means of which waste heat from the process compressor is supplied as useful heat to the thermal power plant WKA.
- the systems A of Figures 1, 2, a control unit CON.
- At least the triedlei ⁇ tung FCC or the cooling line COL are further equipped with control devices CV1, CV4, which are in communication with the integrated loop control settings CON.
- the control elements CV1, CV4 adjusted.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016217886.5A DE102016217886A1 (en) | 2016-09-19 | 2016-09-19 | Plant and process with a thermal power plant and a process compressor |
PCT/EP2017/071097 WO2018050402A1 (en) | 2016-09-19 | 2017-08-22 | Plant and method having a thermal power plant and a process compressor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3516178A1 true EP3516178A1 (en) | 2019-07-31 |
EP3516178B1 EP3516178B1 (en) | 2020-06-17 |
Family
ID=59745892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17761043.3A Active EP3516178B1 (en) | 2016-09-19 | 2017-08-22 | Plant and method having a thermal power plant and a process compressor |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3516178B1 (en) |
CN (1) | CN109790760B (en) |
DE (1) | DE102016217886A1 (en) |
RU (1) | RU2700115C1 (en) |
WO (1) | WO2018050402A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ307962B6 (en) * | 2017-03-31 | 2019-09-18 | Vysoká Škola Báňská-Technická Univerzita Ostrava | Equipment for using compression heat |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH495498A (en) | 1968-08-28 | 1970-08-31 | Sulzer Ag | Steam power plant with charged steam generator |
SU1740707A1 (en) * | 1990-06-18 | 1992-06-15 | Ленинградское высшее военное инженерное строительное училище им.генерала армии А.Н.Комаровского | Combination thermal power plant |
DE19745272C2 (en) * | 1997-10-15 | 1999-08-12 | Siemens Ag | Gas and steam turbine plant and method for operating such a plant |
DE19943782C5 (en) * | 1999-09-13 | 2015-12-17 | Siemens Aktiengesellschaft | Gas and steam turbine plant |
BR0306492A (en) | 2002-09-30 | 2004-10-13 | Bp Corp North America Inc | Methods to provide refrigerant compression power, refrigerant compression power and shared electrical power for a low carbon, low carbon gas liquefaction gas process, and system to provide refrigerant compression power and shared electric power for a hydrocarbon gas liquefaction process with low carbon dioxide emissions |
DE102004020753A1 (en) * | 2004-04-27 | 2005-12-29 | Man Turbo Ag | Device for utilizing the waste heat from compressors |
EP1903189A1 (en) | 2006-09-15 | 2008-03-26 | Siemens Aktiengesellschaft | LNG-System in combination with gas- and steam-turbines |
WO2009059985A2 (en) | 2007-11-07 | 2009-05-14 | Shell Internationale Research Maatschappij B.V. | Method and apparatus for cooling and liquefying a hydrocarbon stream |
JP2011506895A (en) | 2007-12-07 | 2011-03-03 | ドレッサー ランド カンパニー | Compressor apparatus and method for gas liquefaction system |
DE102008062355A1 (en) | 2008-12-18 | 2010-07-08 | Siemens Aktiengesellschaft | Turbo compressor train and method of operating the same and natural gas liquefaction plant with the turbo compressor train |
CN102498267B (en) | 2009-06-09 | 2015-11-25 | 西门子公司 | For making the device of natural gas liquefaction and the method for starting described device |
JP2013092144A (en) * | 2011-10-03 | 2013-05-16 | Kobe Steel Ltd | Auxiliary power generation apparatus |
RU128901U1 (en) * | 2012-12-24 | 2013-06-10 | Владимир Викторович Михайлов | COMBINED HEAT POWER PLANT (OPTIONS) |
-
2016
- 2016-09-19 DE DE102016217886.5A patent/DE102016217886A1/en not_active Withdrawn
-
2017
- 2017-08-22 RU RU2019110497A patent/RU2700115C1/en active
- 2017-08-22 EP EP17761043.3A patent/EP3516178B1/en active Active
- 2017-08-22 WO PCT/EP2017/071097 patent/WO2018050402A1/en active Search and Examination
- 2017-08-22 CN CN201780057566.XA patent/CN109790760B/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102016217886A1 (en) | 2018-03-22 |
WO2018050402A1 (en) | 2018-03-22 |
EP3516178B1 (en) | 2020-06-17 |
CN109790760A (en) | 2019-05-21 |
RU2700115C1 (en) | 2019-09-12 |
CN109790760B (en) | 2021-11-09 |
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