CN116997749A - Method for producing water vapor with defined vapor parameters - Google Patents
Method for producing water vapor with defined vapor parameters Download PDFInfo
- Publication number
- CN116997749A CN116997749A CN202280021865.9A CN202280021865A CN116997749A CN 116997749 A CN116997749 A CN 116997749A CN 202280021865 A CN202280021865 A CN 202280021865A CN 116997749 A CN116997749 A CN 116997749A
- Authority
- CN
- China
- Prior art keywords
- steam
- parameters
- vapor
- water vapor
- expansion section
- 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
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 claims abstract description 12
- 239000001257 hydrogen Substances 0.000 claims abstract description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000001301 oxygen Substances 0.000 claims abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 238000000605 extraction Methods 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 239000000969 carrier Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- F22B1/003—Methods of steam generation characterised by form of heating method using combustion of hydrogen with oxygen
-
- 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
- F01K25/005—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for the working fluid being steam, created by combustion of hydrogen with oxygen
Landscapes
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Air Supply (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention relates to a method for generating water vapor with defined vapor parameters. The method is characterized in that the following method steps are carried out: -hydrogen and oxygen, with the addition of water, pressurize the internal combustion in a steam generator (1) and produce live steam; -delivering live steam generated in the steam generator (1) to a steam turbine (2); -expanding the live steam along an expansion section in the steam turbine (2); -extracting intermediate steam with defined steam parameters along the expansion section and/or extracting exhaust steam with defined steam parameters at the end of the expansion section; and-conveying the extracted intermediate and/or exhaust steam to a subsequent industrial process.
Description
Technical Field
The invention relates to a method for generating water vapor with defined vapor parameters according to the preamble of independent claim 1.
Background
Steam is commonly used for the process as well as for heat supply, the term industrial process being generally used below. A typical field of application is the provision of heat, for example for cooking processes, evaporation processes or distillation processes, and furthermore drying processes or the provision of heat for endothermic reactions in the chemical industry can also be achieved by means of water vapor. The water vapor used in industrial processes is generally referred to herein as process vapor.
The production of water vapor for industrial processes places high demands on the equipment required for this production, on the one hand, and on the other hand, this production also has a significant influence on the energy consumption. Conventional steam generation methods with the aid of conventional boilers (and, if appropriate, steam turbines) are limited in terms of operational flexibility (load gradients, start-up times, etc.). In addition, the use of boilers requires high investment costs. Boilers are typically heated with fossil energy carriers, which negatively affects the emissions of the system and thus also ecological and business economics.
Disclosure of Invention
The object of the present invention is to avoid the disadvantages of the prior art when providing water vapor with defined vapor parameters and to demonstrate a more efficient process for providing water vapor.
The object is achieved by the features of independent claim 1.
Other embodiments of the invention, which can be used alone or in combination with one another, are the subject matter of the dependent claims.
The method according to the invention for producing water vapor with defined vapor parameters is characterized by the following method steps:
hydrogen and oxygen, with the addition of water (irrespective of the aggregation state), pressurize the internal combustion in a steam generator and produce fresh steam;
-feeding fresh steam generated in the steam generator to the steam turbine;
-expanding live steam along an expansion section in the steam turbine;
-extracting intermediate steam with defined steam parameters along the expansion section and/or extracting exhaust steam with defined steam parameters at the end of the expansion section; and
-sending the extracted intermediate steam and/or exhaust steam to a subsequent industrial process.
The operational flexibility is significantly improved (load gradient, start-up time, etc.) compared to classical steam generation by means of conventional boilers. In particular by internal combustion of hydrogen with oxygen, a very short start-up time is obtained. The live steam can already be (pre-) adjusted by adding water (whatever the aggregation state). The steam turbine is fed with and discharged from fresh steam, and steam is provided with defined and optionally different steam parameters. For this purpose, water vapor with corresponding vapor parameters can be extracted by one or more intermediate vapor extractions along the expansion path in the steam turbine and fed to the corresponding industrial process. Alternatively or additionally to using a steam turbine as a regulating means for the process steam parameters, other technical means, such as a throttle (e.g. in combination with water injection or other cooling), may also be used.
In one embodiment of the invention, the hydrogen and oxygen for the combustion are produced by means of renewable energy sources. Thereby, the process steam can be generated completely without emission.
A further embodiment of the invention provides that at least a portion of the live steam is extracted before entering the steam turbine and is fed directly to the industrial process. By adding water, the steam parameters of the live steam generated during the combustion of hydrogen and oxygen can be influenced such that at least a portion of the live steam can be directly fed to the industrial process. If additional steam with lower steam parameters is required, this additional steam may be provided by expanding another portion of the live steam in the steam turbine.
A further embodiment of the invention provides that the mechanical energy produced by the steam turbine is used for driving the machine and/or for producing electrical energy by means of an electrical generator. By the double use of steam (also called cogeneration), a particularly high overall efficiency can be achieved, which increases the economy of the process according to the invention.
Drawings
Further advantages of the invention are explained below with reference to the drawings. The figure shows a system suitable for performing the method according to the invention. The figure shows only the basic components necessary for explaining the method and is not drawn to scale.
Detailed Description
The system for carrying out the method according to the invention essentially comprises a steam generator 1 and a steam turbine 2 connected downstream of the steam generator.
In the method according to the invention, steam is produced by internal combustion, not by pure heat transfer (partly from external combustion) as is conventional, for example when using conventional boilers.
The internal combustion takes place here in a steam generator 1 called a Clean Steam Generator (CSG). CSG 1 is characterized by hydrogen H 2 With oxygenO 2 Pressurized internal combustion of (1) and addition of water H 2 O 2 (independent of the aggregation state), wherein live steam S is produced with defined steam parameters (pressure, temperature, etc.) and with defined quantity and purity L 。
Live steam S L And then to the steam turbine 2 connected downstream of CSG. Live steam is relieved to lower steam parameters along an expansion path extending from the steam turbine inlet 4 to the steam turbine outlet 5. Depending on which steam parameters are required for the respective industrial process, steam can be extracted along the expansion section by one or more intermediate steam extractions and used as process steam S P2 To the corresponding industrial process. The remaining part of the steam is completely unloaded along the expansion section and is taken as exhaust steam S at the steam turbine outlet 5 W Leaving the steam turbine. The exhaust gas can then be conveyed to a condenser or as process steam S P3 Is transported to another industrial process. The steam turbine 1 is configured as a (extraction) condenser turbine or as a (extraction) back pressure turbine, depending on whether the steam at the end of the expansion section is fed as exhaust steam to a condenser or as process steam to an industrial process.
If the industrial process requires very high steam parameters, a part or all of the fresh steam can be led out before the steam turbine and used as process steam S P1 Directly transported to the industrial process. Steam S P1 -S P3 The distribution to the different industrial processes can vary both in terms of time and the corresponding amount of steam.
In this embodiment, the steam turbine drives the generator 3 to generate electric power, alternatively the steam turbine may also drive a working machine (compressor, pump, etc.).
The steam turbine may be configured in one or more stages and may furthermore consist of one or more casings. In addition, live steam can be distributed, offloaded to a plurality of steam turbines and fed to different industrial processes. The different steam turbines and housings may operate at the same or different rotational speeds and do not have to be mechanically coupled to each other by a shaft(s) and do not have to serve the same purpose (e.g., a high pressure turbine as a mechanical drive for a power machine, a low pressure wheel as a drive for a generator).
The hydrogen and oxygen for combustion may preferably be produced by means of renewable energy sources and subsequently stored in CSG for other use. The method for producing process steam according to the invention can be free of CO by reproducibly producing hydrogen and oxygen 2 Is performed locally.
The method for generating steam according to the present invention provides significant advantages over conventional methods in terms of fuel utilization and operational flexibility (CSG can operate at higher load gradients than conventional boilers).
Claims (4)
1. Method for producing water vapor with defined vapor parameters, characterized by the following method steps:
-pressurizing the hydrogen with oxygen in the steam generator (1) with the addition of water to produce internal combustion and fresh steam;
-delivering live steam generated in the steam generator (1) to a steam turbine (2);
-expanding the live steam along an expansion section in the steam turbine (2);
-extracting intermediate steam with defined steam parameters along the expansion section and/or extracting exhaust steam with defined steam parameters at the end of the expansion section; and
-sending the extracted intermediate steam and/or exhaust steam to a subsequent industrial process.
2. The method for producing water vapor having defined vapor parameters according to claim 1,
it is characterized in that the method comprises the steps of,
hydrogen and oxygen for combustion are produced by means of renewable energy sources.
3. The method for producing water vapor having defined vapor parameters according to claim 1 or 2,
it is characterized in that the method comprises the steps of,
at least a portion of the live steam is extracted and fed to an industrial process before entering the steam turbine (2).
4. The method for producing water vapor having defined vapor parameters according to any of the preceding claims,
it is characterized in that the method comprises the steps of,
the mechanical energy produced by the steam turbine (1) is used for driving machinery and/or for producing electrical energy by means of an electrical generator (3).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021202617.6A DE102021202617A1 (en) | 2021-03-18 | 2021-03-18 | Process for generating steam with defined steam parameters |
| DE102021202617.6 | 2021-03-18 | ||
| PCT/EP2022/055451 WO2022194564A1 (en) | 2021-03-18 | 2022-03-03 | Method for generating steam with defined steam parameters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116997749A true CN116997749A (en) | 2023-11-03 |
Family
ID=80780782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202280021865.9A Pending CN116997749A (en) | 2021-03-18 | 2022-03-03 | Method for producing water vapor with defined vapor parameters |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP4271937A1 (en) |
| JP (1) | JP2024511757A (en) |
| CN (1) | CN116997749A (en) |
| BR (1) | BR112023017286A2 (en) |
| DE (1) | DE102021202617A1 (en) |
| WO (1) | WO2022194564A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2088947C (en) | 1993-02-05 | 1996-07-16 | Daniel A. Warkentin | Hydrogen fuelled gas turbine |
| EP0900921A3 (en) | 1997-09-05 | 2000-01-26 | Mitsubishi Heavy Industries, Ltd. | Hydrogen burning turbine plant |
| US20150082799A1 (en) * | 2013-09-24 | 2015-03-26 | Billings Energy Corporation | High Efficiency Hydrogen Turbine |
| DE102015218502A1 (en) * | 2015-09-25 | 2017-03-30 | Siemens Aktiengesellschaft | Steam turbine power plant with hydrogen combustion with the involvement of a gasification device |
| DE102018126496A1 (en) * | 2018-10-24 | 2020-04-30 | HK Innovation UG (haftungsbeschränkt) | Device and method for driving a vehicle, aircraft, ship or the like and vehicle, aircraft, ship or the like which has such a device and / or can be operated with such a method |
-
2021
- 2021-03-18 DE DE102021202617.6A patent/DE102021202617A1/en active Pending
-
2022
- 2022-03-03 JP JP2023557123A patent/JP2024511757A/en active Pending
- 2022-03-03 EP EP22710557.4A patent/EP4271937A1/en active Pending
- 2022-03-03 BR BR112023017286A patent/BR112023017286A2/en unknown
- 2022-03-03 CN CN202280021865.9A patent/CN116997749A/en active Pending
- 2022-03-03 WO PCT/EP2022/055451 patent/WO2022194564A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021202617A1 (en) | 2022-09-22 |
| EP4271937A1 (en) | 2023-11-08 |
| BR112023017286A2 (en) | 2023-09-26 |
| WO2022194564A1 (en) | 2022-09-22 |
| JP2024511757A (en) | 2024-03-15 |
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