DE102007013610A1 - Pump-fed power station comprises an upper and a lower storage reservoir arranged directly one above the other - Google Patents

Pump-fed power station comprises an upper and a lower storage reservoir arranged directly one above the other

Info

Publication number
DE102007013610A1
DE102007013610A1 DE200710013610 DE102007013610A DE102007013610A1 DE 102007013610 A1 DE102007013610 A1 DE 102007013610A1 DE 200710013610 DE200710013610 DE 200710013610 DE 102007013610 A DE102007013610 A DE 102007013610A DE 102007013610 A1 DE102007013610 A1 DE 102007013610A1
Authority
DE
Germany
Prior art keywords
pumped storage
upper
pump
basin
plants
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
Application number
DE200710013610
Other languages
German (de)
Inventor
Werner Dr. Siol
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.)
ETC ENERGIETECHNIK und CHEMIE
Etc Energietechnik und Chemie & Co KG GmbH
Original Assignee
ETC ENERGIETECHNIK UND CHEMIE
ETC ENERGIETECHNIK UND CHEMIE GMBH & CO. KG
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 ETC ENERGIETECHNIK UND CHEMIE, ETC ENERGIETECHNIK UND CHEMIE GMBH & CO. KG filed Critical ETC ENERGIETECHNIK UND CHEMIE
Priority to DE200710013610 priority Critical patent/DE102007013610A1/en
Publication of DE102007013610A1 publication Critical patent/DE102007013610A1/en
Application status is Pending legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B9/00Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E02B9/02Water-ways
    • E02B9/06Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy
    • Y02E10/22Conventional, e.g. with dams, turbines and waterwheels
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage
    • Y02E60/17Pumped storage

Abstract

Pumped storage plant, characterized in that the upper and lower tanks directly above each other are arranged.

Description

  • Field of the invention
  • The The invention relates to pumped storage plants that require little space have no special requirements for the terrain conditions and which are particularly suitable for operating island networks.
  • State of the art
  • The storage of electrical energy is usually done by pumped storage. A pumped storage plant consists of a pumping station, an upper and lower reservoir and a hydroelectric power station. The principle of pumped storage is to pump water from the lower tank with excess electricity in the high-lying pool and to drop the water through the turbines of the hydroelectric power plant back into the lower pool in times of high energy demand to generate the required power. Pumped storage is a mature technology. The overall efficiency is 0.70-0.75, ie 70-75% of the energy used can be recovered (see also DE 195 13 817 ).
  • A prerequisite for the investment of pumped storage plants are favorable terrain conditions for the construction of the two basins, as z. B. are given in the mountains. DE 10361590 describes the construction of a pumped storage plant in disused shaft systems. DD 43131 claims the use of ash and hydraulic filter material for the production of artificial mountains for the construction of an upper basin. DE 195 13 817 describes the construction of large pumped storage power plants in opencast lignite mines where, for particularly large plants, at least the lower reservoir is located below the ambient level.
  • task
  • To As before, there is a need for pumped storage plants, all the more so with increasing share of renewable energies, eg. B. electricity from wind turbines, Generation and demand of electricity often do not coincide.
  • To as before pumped storage plants are only in height-segmented, be it mountainous or hilly terrain in natural or artificially constructed. In particular, in artificially created terrain, z. For example, in upper and lower basins created in lignite open-pit sections, the fluctuation of the water level in the lower basin (depending on the operating condition almost empty or fully filled lower basin) a caulking of the lower basin against groundwater to prevent erosion the slopes.
  • Of the Need for pumped storage plants is also occupied by the fact that only a few years ago with the pumped storage plant Goldisthal so far largest German pumped storage power plant (1060 MW, working capacity: 8,480,000 kWh) has gone online. Also this pumped storage plant was rebuilt in the low mountain range.
  • To As before, the pumped storage takes place only at a few locations in the Mountains or low mountain ranges, far from the consumer centers, with corresponding costs for the network transmission.
  • These Energy storage in distant pumped storage is indeed in Framework of a large interconnected network possible prevented but for example, an island operation, as he is of many consumers especially with regard to a purely renewable energy built-up power generation is desired.
  • solution
  • It has now been found that pumped storage plants without special requirement built on a special terrain almost everywhere when the pumped storage plants are so constructed, that upper and lower tank directly above each other on one common foundation are arranged.
  • such Pumped storage plants are independent of the filling level the basin (ie regardless of whether or not the entire body of water in the lower or upper basin) on the ground. All relevant Forces can be absorbed inside the structure. In order to is the establishment of such a pumped storage on the technical Requirements for the erection of a skyscraper or large Warehouse returned, the sufficient are known. This also applies to the requirements of the Subsoil on which this building is to be built. It is essential that the focus of the water masses at filled upper tank directly above the center of gravity the mass of water is arranged with a filled lower basin.
  • When Guideline can be taken that the connecting line the center of gravity of the water masses in the upper basin to the center of gravity the water masses in the lower basin to the vertical angle <10 °, preferably <2 °, especially preferably <1 ° should.
  • from Principle forth is the inventive Pumped storage plant around a two-storey building.
  • When Example of such pumped storage see example 1. The structure described there has a square base 100 m × 100 m, the foundation is 20 m below ambient level, the Side walls of the lower basin are 25 m high, of which 20 m in the soil. Above it is located at a height of 5 m the bottom of the upper basin. The side walls of the upper basin are like the lower basin 25 m high. This extends that Building 20 m deep in the ground and has a height of 30 m above the ground.
  • One Such building has similar dimensions as z. As a high-bay warehouse, which can be found in many industrial areas is.
  • To Filling the pumped storage plant with approx. 220,000 m3 of water can with an average use of 200,000 m3 of water and an average use case height of the water of 20 m by pumping up the water energy in an amount of 8888 kWh are stored. Thus, such a pumped storage plant for the period of 4 hours a power of 2,222 MW Make available. By enlargement of the pumped storage tank (enlargement of the lower and upper Oberbeckens, increase of the height of fall) the storable amount of energy can be increased.
  • The Knowledge of the construction of such two-storey pumped storage power plants z. B. reinforced concrete, the strength and number of support the upper tank required carrier may be among the professionals of civil engineering.
  • Especially for smaller pumped storage is also the establishment of the upper and Lower basin made of steel possible. But it is also essential here, that the upper and lower basins are arranged directly above each other are.
  • Next the establishment of small inventive pumped storage for example in industrial areas can also z. B. in former Gravel pits or preferably in cleared lignite mined sections especially built large pumped storage (see Example 2). Again, there is the significant advantage of the invention two-storey pumped storage plants in that with a suitable height a floating of the building by the groundwater not can be done. Due to the arrangement of the upper basin directly over the lower basin occur regardless of the memory state of the Pumped storage no fluctuations in the forces on the environment on.
  • This is how the in DE 195 13 817 described advantages of a safe storage of very large volumes of water below ambient level with the pump storage optimally use.
  • there such storages can be used in open lignite mines be created particularly large, z. B. can this Basin can hold 10,000,000 m3 or even 100,000,000 m3. At a fall height of 50 m results for a such pumped storage plant a working volume of 11,000,000 kWh, d. H. Such a pumped storage plant can be used for the period from 11 h the power of a nuclear power plant (1000 MW) is available put..
  • In contrast, is it in the smaller pumped storage plants, as z. B. can be created in industrial areas (see Example 1) to store with pools in a size of z. 50,000 m3 to 500,000 m3. These systems are thus significantly larger as the known for the storage of fresh water water towers. In contrast to these, the pumped storage according to the invention two pools of equal size directly above each other.
  • Regarding the external effect of the smaller pumped storage tanks in an industrial area These are most likely comparable to those in the near future every city's existing gas tanks that are quite 600,000 m3 and could reach a height of over 100 m had.
  • Particular advantages of the invention Pumped storage plants
  • In First and foremost, it is important to emphasize that the new pumped storage plants almost everywhere, even on completely flat terrain, can be built. So they can be combined with wind turbines, photovoltaic systems or combined heat and power plants contribute to the economic operation of an island grid.
  • on the other hand Such pumped storage plants also offer storage for in Wind turbines generated electricity.
  • To emphasize is the small space requirement of the pumped storage plants according to the invention. The pumped storage plant stands like a skyscraper on level ground. As a rule, the sub-basin is brought into the ground so far that the total mass of the pumped storage plant including water roughly corresponds to the mass of the replaced excavation, so that the structure neither sinks nor floats. Especially in combination with DE 195 13 817 the possibility arises for the construction of particularly large pumped storage plants. To estimate the performance of the pumped storage plants see this patent. There you will also find information to choose from suitable turbines. Thus, in the pumped storage plants according to the invention fully pressurized turbines such as Francis or Kaplan turbines or pump turbines are used.
  • example 1
  • Pumped storage plant with directly above one another lying upper and lower basin.
    • Foundation: 100 m × 100 m, 20 m below ambient level,
    • Lower basin: 100 m × 100 m × 25 m and directly about that
    • Upper basin: 100 m × 100 m × 25 m,
    • Usable water mass: 200,000 m3,
    • average height of fall: 20 m.
  • This Pumped storage plant can provide power of 2,222 MW for 4 hours corresponding to a working volume of 8,888 kWh.
  • Example 2
  • In A cleared lignite mining stretch will be on a 1000 m × 1000 m large foundation a 75 m high Building erected with 75 m high side walls. This is a 1000 m × 1000 m × 40 m large Lower basin and directly above the upper basin with a Volume of 35,000,000 m3 created.
  • at an average usage of 30,000,000 m3 of water for storage and an average drop height of 35 m, this pumped storage plant for the duration of 10 h a capacity of 233 MW available corresponding to a working volume of 2.33 million kWh.
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
  • Cited patent literature
    • - DE 19513817 [0002, 0003, 0019, 0025]
    • - DE 10361590 [0003]
    • - DD 43131 [0003]

Claims (3)

  1. Pumped storage plant, characterized in that the upper and lower tanks are arranged directly above one another.
  2. Pumped storage plant according to claim 1, characterized in that the upper and lower tanks directly above each other are arranged on a common foundation.
  3. Use of the pumped storage plant according to Claims 1 and 2 for the construction of an island network.
DE200710013610 2007-03-22 2007-03-22 Pump-fed power station comprises an upper and a lower storage reservoir arranged directly one above the other Pending DE102007013610A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200710013610 DE102007013610A1 (en) 2007-03-22 2007-03-22 Pump-fed power station comprises an upper and a lower storage reservoir arranged directly one above the other

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710013610 DE102007013610A1 (en) 2007-03-22 2007-03-22 Pump-fed power station comprises an upper and a lower storage reservoir arranged directly one above the other

Publications (1)

Publication Number Publication Date
DE102007013610A1 true DE102007013610A1 (en) 2008-09-25

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Family Applications (1)

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DE200710013610 Pending DE102007013610A1 (en) 2007-03-22 2007-03-22 Pump-fed power station comprises an upper and a lower storage reservoir arranged directly one above the other

Country Status (1)

Country Link
DE (1) DE102007013610A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011012594A1 (en) 2011-02-28 2012-08-30 Universität Innsbruck Hydraulic energy storage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD43131A (en)
DE19513817A1 (en) 1995-04-12 1996-10-17 Ursula Siol Pumped storage plant for electrical power generation
DE10361590A1 (en) 2003-12-30 2005-07-28 Meyer, Ullrich, Dr.-Ing. Pumped storage installation for use in inoperative/abandoned pit, has top level and bottom level storage basins that are used as cavities which are artificially created at different levels in inoperative/abandoned pits

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD43131A (en)
DE19513817A1 (en) 1995-04-12 1996-10-17 Ursula Siol Pumped storage plant for electrical power generation
DE10361590A1 (en) 2003-12-30 2005-07-28 Meyer, Ullrich, Dr.-Ing. Pumped storage installation for use in inoperative/abandoned pit, has top level and bottom level storage basins that are used as cavities which are artificially created at different levels in inoperative/abandoned pits

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011012594A1 (en) 2011-02-28 2012-08-30 Universität Innsbruck Hydraulic energy storage
WO2012116956A1 (en) 2011-02-28 2012-09-07 Universität Innsbruck Hydraulic energy store
US9617969B2 (en) 2011-02-28 2017-04-11 Universität Innsbruck Hydraulic energy store

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R005 Application deemed withdrawn due to failure to request examination

Effective date: 20140325