WO2010146200A1 - Sistema y procedimiento de acumulación de vapor en tanques para aplicación solar - Google Patents
Sistema y procedimiento de acumulación de vapor en tanques para aplicación solar Download PDFInfo
- Publication number
- WO2010146200A1 WO2010146200A1 PCT/ES2010/000268 ES2010000268W WO2010146200A1 WO 2010146200 A1 WO2010146200 A1 WO 2010146200A1 ES 2010000268 W ES2010000268 W ES 2010000268W WO 2010146200 A1 WO2010146200 A1 WO 2010146200A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steam
- tanks
- tank
- pressure
- discharge
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003860 storage Methods 0.000 claims abstract description 22
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 13
- 238000009825 accumulation Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000011555 saturated liquid Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 2
- 239000011513 prestressed concrete Substances 0.000 claims description 2
- 208000028659 discharge Diseases 0.000 claims 4
- 238000007599 discharging Methods 0.000 claims 1
- 150000003839 salts Chemical class 0.000 description 6
- 238000013021 overheating Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000004326 stimulated echo acquisition mode for imaging Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000001052 transient effect Effects 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
- F01K1/00—Steam accumulators
- F01K1/04—Steam accumulators for storing steam in a liquid, e.g. Ruth's type
-
- 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
- F01K1/00—Steam accumulators
- F01K1/08—Charging or discharging of accumulators with steam
-
- 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
- F01K1/00—Steam accumulators
- F01K1/12—Multiple accumulators; Charging, discharging or control specially adapted therefor
-
- 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
- F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
- F01K3/008—Use of steam accumulators of the Ruth type for storing steam in water; Regulating thereof
-
- 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
- F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
- F01K3/14—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having both steam accumulator and heater, e.g. superheating accumulator
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
Definitions
- the use of storage covers several purposes within a solar plant. On the one hand, it allows to increase the production, both increasing the load in hours of high irradiance and extending it to the night periods. This, as already mentioned, manages to maximize the profitability of the investment. On the other hand, it allows continuous operation even in the presence of cloudy periods (transient radiation conditions). And finally, it allows continuous operation of the turbine for long periods, reducing the start and stop cycles, thus reducing the thermal stresses to which this equipment is subjected.
- thermoelectric plant Thermal stresses are responsible for some of the most fatal failures of a turbine, a key element, while expensive, of a thermoelectric plant.
- the current state of the art in the accumulation of energy in solar thermal power plants is largely directed to the accumulation through liquid medium, either thermal oil, or in molten salts.
- the solar thermal plants take advantage of the direct radiation of the sun, concentrating it and generating steam.
- solar radiation has a variable profile that depends on a large number of factors, including cloudiness.
- the cloudiness makes the radiation that reaches the collecting surfaces of a solar field fluctuate significantly in very short times. It is necessary that the system has a reaction time as close as possible to these variations to prevent them from being transmitted to the generation or turbine system, which would be fatal for its durability.
- the frequency of these transitory periods varies according to the place of the world, but they are not negligible in any case.
- the present invention presents a proposal for the minimization of storage costs using tanks that store in an important range of pressures with a suitable geometry.
- the storage capacity of the tank is proportional to the difference in pressures with which the tank works. Thus, the same volume will be used, all the more, the greater this difference.
- the present invention solves all these inconveniences raised by achieving an optimal steam accumulation system, as described below. Description of the invention
- the present invention proposes to use in the solar thermal power generation plants the accumulation in steam by means of spherical or semi-spherical tanks at high pressures, also determining the specific procedures for loading and unloading so that their capacity is optimally utilized.
- the present invention proposes the accumulation of steam from pressures greater than or equal to 100 bar to pressures in the environment of 20 bar and, so that the distribution of tensions that occurs in the tanks is carried out, the invention raises the use of spherical tanks.
- This type of tank allows the accumulation of steam for a given pressure with thicknesses smaller than those of the cylindrical tanks, which allows a significant reduction in costs, thanks to the decrease in the amount of material required.
- spherical geometry tanks could be constructed both in metal and in prestressed concrete or in any equivalent material.
- the high-pressure storage system presented has another additional advantage: it is capable of working not only with saturated steam but also with superheated steam. More specifically, the accumulation of steam referred to in the present invention makes use of a Ruths type system.
- the Ruths type system consists of a tank partially filled with water in equilibrium with a vapor that occupies the rest of the volume. The tank or accumulator is charged by a steam that is produced externally. This steam gives its heat to the rest of the existing fluid in the tank, by condensation. In the discharge of the accumulator a pressure drop occurs that causes a flash evaporation inside it, which translates into a spontaneous generation of steam that will be discharged next.
- One of the main characteristics of this type of discharge is that the pressure of the steam discharged decreases as it progresses.
- This accumulation system allows the accumulated steam to be available in a cycle in very short times.
- This reaction speed that allows the accumulation of steam against the accumulation through other means such as salts or oil, is absolutely essential for an optimal operation of solar thermal plants for the generation of electrical energy.
- the storage system consists of a set of tanks or accumulators and two heat exchangers.
- the specific number of tanks will be determined from the general design parameters of the solar thermal power plant and the solar resource characteristic of the installation location.
- the tanks have a Ruths type operation as described above, that is, the steam is generated as the tank is discharged.
- the tanks are divided into two groups: base group (1) and overheating group (2), both groups do not differ in design and are also interchangeable.
- Each type of tank has several characteristic pressures:
- the maximum loading pressure is the maximum pressure that the tank supports when it is fully loaded. This system is designed so that these pressures are greater or of the order of 100 bar. This pressure is the same for both types of tanks.
- the operating pressures A and B are setpoints that can be varied according to the operator's convenience. They are intermediate pressures between the maximum load and the minimum discharge. These must be defined for each tank taking into account that the currents (4 ') obtained from the discharge of the superheat group tanks (2) are used in a heat exchanger (6) to raise the temperature of the resulting currents (4 ) of the discharge of the tanks of the base group (1).
- the operating pressure B of the base group (1) is further defined by the operation of the technical minimum of the turbine. Thus, these pressures are necessarily different for each type of tank, in any case complying with the following:
- the minimum discharge pressure is the minimum pressure at which the tank is discharged.
- the minimum discharge pressure will be around 1 bar. This pressure is the same for both types of tanks (1, 2).
- the charging steam of the system (3) can come from both a conventional boiler and the boiler or solar receiver of the installation. In both cases the steam generated will be a saturated steam at the maximum loading pressure.
- the objective of this phase is to bring the accumulators (1, 2) to the state of maximum charge.
- This steam (3) is introduced through the inlet and leaves the tank through the injectors (10). Inside the tank this saturated vapor (8) will be in equilibrium with the saturated liquid ( ⁇ ).
- Phase I comprises the discharge of the accumulators (1, 2) from the maximum storage pressure to the operating pressure B.
- Phase I comprises the discharge of the accumulators (1, 2) from the maximum storage pressure to the operating pressure B.
- the tanks (1, 2) are discharged from the maximum loading pressure to the operating pressure A and in the second stage from the operating pressure A to the operating pressure B.
- the currents (4 ') that are obtained from an overheating tank (2) will have a constant pressure of 85 bar, while the currents (4) of the base group (1) will have a pressure of 23 bar.
- the pressures will be 40 bar and 10 bar respectively. This difference in discharge pressures at each stage is carried out in order to overheat the currents of the base group (4) with those of the superheat group (4 '), in order to power the turbine without problems.
- the current of 85 bar has a temperature corresponding to the saturation state of 299.23 0 C, which will be sufficient to overheat the current of 23 bar which is at a temperature of 219.55 0 C.
- the current of 40 bar Ia which is at 250.33 0 C, will serve to overheat the current of 10 bar, whose initial temperature is 179.88 0 C.
- the phase Il comprises the discharge of the accumulators (1, 2) from the operating pressure B to the minimum discharge pressure.
- the condensate storage tank is the equipment that stores the water used to load the storage tanks.
- the water in the loading process leaves the condensate storage tank, passes through an exchanger increasing its temperature and is subsequently introduced into the deaerator of the steam turbine cycle. From there, it will pass through the cycle preheaters until it reaches the boiler (in this case solar receiver) and once the steam reaches the loading conditions it will be taken to the storage tanks, as explained in the loading process.
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)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
Claims
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MA34537A MA33431B1 (fr) | 2009-06-19 | 2010-06-18 | Système et procédé d'accumulation de vapeur dans des cuves pour application solaire |
EP10789033A EP2444594A1 (en) | 2009-06-19 | 2010-06-18 | System and method for accumulating steam in tanks for solar use |
AU2010261732A AU2010261732A1 (en) | 2009-06-19 | 2010-06-18 | System and method for accumulating steam in tanks for solar use |
CN201080027465.6A CN102803662B (zh) | 2009-06-19 | 2010-06-18 | 在太阳能水箱中聚积蒸汽的***和方法 |
US13/377,967 US20120131915A1 (en) | 2009-06-19 | 2010-06-18 | System and method for accumulating steam in tanks for solar use |
MX2011013458A MX2011013458A (es) | 2009-06-19 | 2010-06-18 | Sistema y procedimiento de acumulacion de vapor en tanques para aplicacion solar. |
EG2011122096A EG26989A (en) | 2009-06-19 | 2011-12-14 | System and method for accumulating steam in tanks for solar use |
TNP2011000641A TN2011000641A1 (en) | 2009-06-19 | 2011-12-15 | System and method for accumulating steam in tanks for solar use |
ZA2011/09454A ZA201109454B (en) | 2009-06-19 | 2011-12-21 | System and method for accumulating steam in tanks for solar use |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESP200901458 | 2009-06-19 | ||
ES200901458A ES2350221B1 (es) | 2009-06-19 | 2009-06-19 | Sistema y procedimiento de acumulacion de vapor en tanques para aplicacion solar. |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010146200A1 true WO2010146200A1 (es) | 2010-12-23 |
WO2010146200A8 WO2010146200A8 (es) | 2012-02-02 |
Family
ID=43355916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2010/000268 WO2010146200A1 (es) | 2009-06-19 | 2010-06-18 | Sistema y procedimiento de acumulación de vapor en tanques para aplicación solar |
Country Status (12)
Country | Link |
---|---|
US (1) | US20120131915A1 (es) |
EP (1) | EP2444594A1 (es) |
CN (1) | CN102803662B (es) |
AU (1) | AU2010261732A1 (es) |
CL (1) | CL2011003178A1 (es) |
EG (1) | EG26989A (es) |
ES (1) | ES2350221B1 (es) |
MA (1) | MA33431B1 (es) |
MX (1) | MX2011013458A (es) |
TN (1) | TN2011000641A1 (es) |
WO (1) | WO2010146200A1 (es) |
ZA (1) | ZA201109454B (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2444340B1 (es) * | 2012-07-23 | 2014-12-17 | Abengoa Solar New Technologies S.A. | Método de operación de una planta solar termoeléctrica |
BE1021499B1 (fr) * | 2012-12-21 | 2015-12-03 | Rutten - New Energy System S.A. | Centrale electrique thermique classique ou solaire thermodynamique a concentration |
DE102014225696A1 (de) | 2014-12-12 | 2016-06-16 | Siemens Aktiengesellschaft | Verfahren zum Betrieb eines thermochemischen Wärmespeichers |
CN105134308A (zh) * | 2015-07-22 | 2015-12-09 | 赵连新 | 高温高压水蓄能蒸汽发电*** |
US20180094546A1 (en) * | 2016-10-04 | 2018-04-05 | General Electric Company | Fast Frequency Response Systems with Thermal Storage for Combined Cycle Power Plants |
JP2020139654A (ja) * | 2019-02-27 | 2020-09-03 | 株式会社Ihi | 乾燥装置および乾燥方法 |
FR3118097B1 (fr) * | 2020-12-22 | 2023-04-14 | Commissariat Energie Atomique | Procédé de stockage d'énergie dans un accumulateur de vapeur |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB302718A (en) * | 1927-12-21 | 1929-12-24 | Franz Jaschik | Improvements in steam generating and supply plants |
GB471745A (en) * | 1936-03-09 | 1937-09-09 | Paul Gilli | Improvements in or relating to high pressure steam storage plant |
GB489877A (en) * | 1936-04-04 | 1938-08-05 | Ruths Internat Accumulators Lt | Improvements in or relating to steam power plant |
DE2458961A1 (de) * | 1974-12-12 | 1976-06-16 | Waagner Biro Ag | Dampfspeicheranlage |
US3982379A (en) * | 1974-08-14 | 1976-09-28 | Siempelkamp Giesserei Kg | Steam-type peak-power generating system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2089915A (en) * | 1932-09-20 | 1937-08-10 | Gilli Paul | Accumulator plant |
US2320586A (en) * | 1936-02-24 | 1943-06-01 | Gilli Paul | Accumulator plant |
AT312007B (de) * | 1971-09-02 | 1973-12-10 | Waagner Biro Ag | Dampfspeicherkraftwerk |
JPS55112809A (en) * | 1979-02-21 | 1980-09-01 | Hitachi Ltd | Method of running combined-cycle power plant and controller therefor |
DE4121460A1 (de) * | 1991-06-28 | 1993-01-14 | Deutsche Forsch Luft Raumfahrt | Waermespeichersystem mit kombiniertem waermespeicher |
CN2221656Y (zh) * | 1995-04-14 | 1996-03-06 | 青岛市市北区现代电站辅机厂 | 蒸汽蓄能汽轮机发电装置 |
US6422017B1 (en) * | 1998-09-03 | 2002-07-23 | Ashraf Maurice Bassily | Reheat regenerative rankine cycle |
WO2009098588A2 (en) * | 2008-02-08 | 2009-08-13 | Csem Centre Suisse D'electronique Et De Microtechnique Sa - Recherche Et Developpement | Steam storage system for artificial solar island |
US8266908B2 (en) * | 2008-06-30 | 2012-09-18 | Ormat Technologies, Inc. | Multi-heat source power plant |
-
2009
- 2009-06-19 ES ES200901458A patent/ES2350221B1/es active Active
-
2010
- 2010-06-18 EP EP10789033A patent/EP2444594A1/en not_active Withdrawn
- 2010-06-18 AU AU2010261732A patent/AU2010261732A1/en not_active Abandoned
- 2010-06-18 CN CN201080027465.6A patent/CN102803662B/zh not_active Expired - Fee Related
- 2010-06-18 MX MX2011013458A patent/MX2011013458A/es active IP Right Grant
- 2010-06-18 US US13/377,967 patent/US20120131915A1/en not_active Abandoned
- 2010-06-18 MA MA34537A patent/MA33431B1/fr unknown
- 2010-06-18 WO PCT/ES2010/000268 patent/WO2010146200A1/es active Application Filing
-
2011
- 2011-12-14 EG EG2011122096A patent/EG26989A/xx active
- 2011-12-15 TN TNP2011000641A patent/TN2011000641A1/en unknown
- 2011-12-15 CL CL2011003178A patent/CL2011003178A1/es unknown
- 2011-12-21 ZA ZA2011/09454A patent/ZA201109454B/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB302718A (en) * | 1927-12-21 | 1929-12-24 | Franz Jaschik | Improvements in steam generating and supply plants |
GB471745A (en) * | 1936-03-09 | 1937-09-09 | Paul Gilli | Improvements in or relating to high pressure steam storage plant |
GB489877A (en) * | 1936-04-04 | 1938-08-05 | Ruths Internat Accumulators Lt | Improvements in or relating to steam power plant |
US3982379A (en) * | 1974-08-14 | 1976-09-28 | Siempelkamp Giesserei Kg | Steam-type peak-power generating system |
DE2458961A1 (de) * | 1974-12-12 | 1976-06-16 | Waagner Biro Ag | Dampfspeicheranlage |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Derwent World Patents Index; AN 1976-F7821X * |
Also Published As
Publication number | Publication date |
---|---|
CL2011003178A1 (es) | 2012-06-15 |
US20120131915A1 (en) | 2012-05-31 |
ES2350221A1 (es) | 2011-01-20 |
WO2010146200A8 (es) | 2012-02-02 |
ZA201109454B (en) | 2012-08-29 |
ES2350221B1 (es) | 2011-10-21 |
AU2010261732A1 (en) | 2012-02-02 |
EG26989A (en) | 2015-03-08 |
MX2011013458A (es) | 2012-04-11 |
CN102803662A (zh) | 2012-11-28 |
EP2444594A1 (en) | 2012-04-25 |
CN102803662B (zh) | 2015-02-25 |
MA33431B1 (fr) | 2012-07-03 |
TN2011000641A1 (en) | 2013-05-24 |
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