• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a method for installing a pumped energy transfer station, called "marine STEP", which comprises: a water reservoir (RE) located at altitude relative to the sea level ( M); - a hydroelectric plant (HE) capable of functioning as a pump-motor unit for pumping water from the sea (M) to said water reservoir (RE), or as a turbine-generator unit for generating electricity by releasing water, from the reservoir (RE) to the sea (M), via at least one pipe (1) connecting said water reservoir (RE) to said hydroelectric plant (HE) characterized by the fact that: - a hydroelectric plant (HE) is used which is in the form of at least one box (2), at least the lower part of which is watertight; conveying said box (2) to the foot "of said water reservoir (RE); - that said box (2) is immobilized at sea (M); and that it is connected to said pipe (1).
    公开号:FR3016663A1
    申请号:FR1450390
    申请日:2014-01-17
    公开日:2015-07-24
    发明作者:Eric Coulon
    申请人:STX France SA；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a method for installing a pumped energy transfer station, called "marine STEP". It also relates to such a transfer station. The current world of energy is in profound evolution, with a sharp increase in consumption in countries like China, India or Southeast Asia. This increase in consumption is also being felt, more moderately, in the western countries of Western Europe and North America. To this increase is added a disruption of the electricity generation park with the arrival of the peak of growth of fossil energies. Finally, the events that occurred in 2011 in Fukushima have a direct influence on the energy policies of a number of countries: nuclear reduction (Switzerland, Germany, Japan) and the development of 15 intermittent energies. The increase in demand variation and the development of intermittent renewable energies such as wind power or photovoltaics require new solutions to better manage the balance between production and consumption. In addition to forecasting techniques for intermittent energies and better network, consumption and production management, energy storage solutions can contribute to system balance. At present, stationary battery storage solutions are poorly developed because of the size required for the installations. In addition, compressed air storage has poor yields. On the other hand, hydraulic storage (pumping-storage), which already represents the vast majority of mass storage in the world, seems to have all its place to meet the new energy challenges. The operating principle of a STEP (acronym for "Pump Energy Transfer Station") comprises two phases, one of pumping water from a lower basin to an upper basin (ie placed at a higher altitude) when one seeks to store energy, and the other turbining water from the upper basin to the lower basin when seeking to produce electricity. In addition to an upper basin and a lower basin, a WWTP is composed of a hydro-electric plant capable of operating as a pump-motor assembly for pumping water from said lower basin to said upper basin or as a turbine-generator assembly for generating electricity by dropping water from said upper basin to said lower basin. It also consists of a so-called "forced" pipe connecting said upper basin to said pump-turbine of the hydro-electric plant and a pipe called "downstream" connecting the lower basin to said pump-turbine of the hydroelectric plant. The case of a "marine" WWTP is similar to that of a "conventional" WWTP, except that the lower basin is replaced by the sea or the ocean. 15 Worldwide, 99% of stationary energy storage capacity is provided by WWTPs (source: Report on the Low Carbon Energy Industry - 2010). In Europe, there are currently 40 GW of installed capacity of STEP (representing 30% of the global capacity of WWTPs). Four 20 GW of capacity are currently under construction and an increase in European capacity of 35% is expected between 2010 and 2020. The STEP market is therefore experiencing a significant expansion that it had not experienced since the 1980s. particularly in connection with the development and optimization of the nuclear fleet. 25 Outside Europe, Asia is the fastest growing market, with installed capacity doubling between 2005 (25 GW) and 2020 (50 GW). The projections make it possible to estimate the global need for mass storage between 500 and 1000 GW by 2030/2040, due to the development of the penetration of intermittent renewable energies, 30 of which a large part will remain ensured by WWTPs, the the remainder being ensured by the technique known as "CAES" (for "Compressed Air Energy Storage"), which is becoming. The development of land-based STEPs in Europe will be constrained in the coming years by the fact that the best sites have already been equipped and by the environmental context. Moreover, the hydraulic circuits of the terrestrial STEPs (ie the length of the pipes between the basins) are relatively long and do not make it possible to reach short response times (less than 10 s). Marine STEPs overcome this problem and minimize the cost and environmental impacts, while offering locations near offshore wind farms.
    [0002] Marine WWTP is therefore a technique that would allow a priori to provide a relay to terrestrial WWTPs. However, the following observation is made: The idea that comes naturally is to achieve a marine WWTP on the basis of an industrial scheme identical to that of the realization of a 10 WWTP, and therefore including with the following constraints: - the hydro-electric plant is installed partially underground, in caverns or wells; the main equipment (pumps, turbines, alternators, transformers, etc.) are conveyed on site by land, which requires considerable means of transport; - Costs and deadlines are very dependent on the geology and typography of the site, leading to significant financial risks for the project, which investors do not like. The present invention is intended to overcome these disadvantages. Thus, according to a first aspect, it relates to a method for installing a pumped energy transfer station, called "Marine STEP", which comprises: a water reservoir situated at an altitude relative to the level of 25 the sea; a hydroelectric plant capable of operating as a pump-motor unit for pumping water from the sea towards said water reservoir, or as a turbine-generator unit for generating electricity by release of the water of the reservoir towards the sea, via at least one pipe 30 connecting said reservoir of water to said hydroelectric plant, characterized in that: - use is made of a hydroelectric plant which is under the shape of at least one box whose at least the lower part is sealed; said box is conveyed to the "foot" of said water retainer; - that one immobilizes at sea said box; and that it is connected to said conduct. According to other non-limiting and advantageous features of this method: said box is immobilized at sea while it is partially immersed; - The delivery of said box is achieved by placing it on the surface of the water and traction by at least one powerboat; - The delivery of said box is achieved by placing it on a barge; - It uses a box which projects at least a connecting pipe to said pipe; - Prior to the immobilization of said box, it sets up a seat integral with the seabed, on which said box is subsequently brought; - A caisson protection means, such as a dike, a floating breakwater or a protection system integrated in the caisson, are subsequently installed. Another aspect of the invention relates to a pumped energy transfer station, called "marine STEP" which comprises: - a reservoir of water located at altitude relative to the sea level; and a hydroelectric plant capable of operating as a pump-motor unit for pumping water from the sea towards said water reservoir, or as a turbine-generator unit for generating electricity by releasing the water. water, from the reservoir to the sea, via at least one pipe connecting said reservoir of water to the sea, characterized in that said hydroelectric plant is in the form of at least one at least partially sealed box 30 immobilized in sea, at the "foot" of said water reservoir. Advantageously, this station comprises several boxes stowed to each other. Other features and advantages of the invention will appear on reading the detailed description which follows. It will be made with reference to the accompanying drawings in which: - Figures 1 and 2 are simplified views in section, in a vertical and longitudinal plane, of two embodiments of a pumped energy transfer station, according to the prior art; FIG. 3 is a simplified sectional view, along a vertical and longitudinal plane, of an embodiment of a pumped energy transfer station, called "marine STEP", in accordance with the invention; FIG. 4 is a perspective view of a lower element 5 of a box forming a hydroelectric plant, used in the context of the present invention; FIG. 5 is also a perspective view showing several lower elements of a box, of different sizes, as well as upper elements intended to cover them; Figure 6 is a perspective view of a box used in the context of the invention and obtained by the union of one or more upper and lower elements such as those of the previous figure; - Figure 7 is a sectional view along a vertical and transverse plane of a box; Figure 8 is a perspective view of a box being launched and towed by two motor boats; FIG. 9 is a sectional view, along a vertical and longitudinal plane, of a seat situated at the seaside, at the foot of the water reservoir and adapted to receive a box such as that shown in FIG. Figure 8; FIG. 10 is a sectional view, also in a vertical and longitudinal plane, of the "distal" end of the station duct, that is to say of that which is intended to be connected to the box; - Finally, Figure 11 is a top view of a box, and a protective dam thereof. Throughout the following description, when the term "pumped energy transfer station" is used, abbreviated to "STEP", unless otherwise stated, it will be understood that a marine STEP. In addition, the terms "water retention" and "upper basin" will be used interchangeably. Figures 1 and 2 respectively represent a terrestrial STEP and a marine STEP according to the state of the art. Thus, as illustrated in FIGS. 1 and 2, the pump-turbines P of the hydroelectric plants HE are installed underground, in caverns or wells, connected to the upper basin RE by a penstock 10 and to the lower basin BI or the sea M by a downstream line 12. Electrical substations, switchboards and transformers are installed in electrical substation buildings situated above the associated pump-turbines. There is the presence of a well 3 equipped with an elevator, which in particular allows operators to access the pump-turbine or to engage in driving, in order to check their conditions and carry out their maintenance. , if necessary. As an indication, the distance d between the upper water reservoir RE to the lower basin BI is of the order of a few thousand meters. This distance, in the context of a marine WWTP, is of the order of a few hundred meters. As mentioned above, the appended FIG. 3 represents a marine STEP according to the invention. Thus, as illustrated in Figure 3, the station is installed at the seaside, along a coast A cliff. As is known, on the upper part of the coast there is a water reservoir RE which can be natural or artificial. It is therefore situated at an altitude relative to the level NM of the sea M. As an indication, the difference in altitude can be between 50 and 300 meters. A pipe 1 connects the bottom of the reservoir RE to a caisson 2. This pipe, which is dimensioned according to the energy level that it is desired to produce, comprises a vertical "branch" whose upper end opens into the restraint RE and a horizontal "branch" 12 which opens into the box. This branch 12 called - swallows "may have another provision. It can for example be inclined. The aforementioned branches are of course joined by a curved intermediate portion 11. The digging techniques and layout of this pipe are well known to those skilled in the art and therefore will not be described further. In Figure 3 is also visible a hydroelectric plant HE which is placed at sea, "at the foot" of the reservoir RE, which means that it is directly connected to the free end (or distal) of the branch 12 of the pipe 1. This plant takes the form of the aforementioned caisson 2. We will come back in more detail, later in the description, on the structure of the plant and its method of manufacture.
    [0003] As is particularly visible in FIGS. 4 to 7 in particular, the hydroelectric plant HE, which can be used in the context of the present invention, has the shape of a box 2, preferably a metal box, which is watertight at least in its lower part. This box is preferably made by assembling prefabricated structure blocks. This allows a quick and easy installation of large equipment (energy system and auxiliary systems) component HE hydroelectric plant, which can be organized as and when assembly blocks, as shown in the figure 5.
    [0004] In this figure and in Figure 4 also, the box 2 comprises at least one lower element 20 (here three elements are shown) which is part of a rectangular parallelepiped. It has a bottom and vertical longitudinal and transverse walls. So it's open up. This lower element contains some of the usual equipment of a hydroelectric plant, including pump-turbines 200, electrical panels, transformers, ventilation systems, freshwater production, drainage, etc. The element 201 visible in Figure 4 is a pipe section inside the box and the element 230 a pipe section external to the box for connection to the pipe 1. Pipes 203 can pump sea water to the pipe 1 or reject the water from the pipe 1 to the sea M when the hydroelectric plant HE operates respectively as a pump-motor assembly or as a turbine-generator set. Of course, as shown in FIG. 5, each lower element 20 is intended to receive an upper element 21 which covers it, the assembly then forming a box. The connections between the elements 20 and 21 are provided by any known means for sealing the caisson 2, in particular by welding. In Figure 6 is visible a box 2 in perspective. It will be noted that along one of its transverse faces extends a plate 23, parallel to its upper and lower faces. This plate serves as access platform to box 2 for operators or boarding / unloading equipment. This plate also serves as a support means for a pair of connecting pipes 230, the function of which will be explained later.
    [0005] It has been said above that at least the lower part of the boxes is waterproof. Indeed, as discussed below, this lower portion is intended to extend below the level NM of the sea M. However, preferably, the entire surface of the box is provided sealed.
    [0006] One of the steps of the method according to the invention lies in the fact that the box 2 is moved to the "foot" of the water reservoir. This can be done by any suitable means. However, and particularly preferably, the routing is carried out by placing the box on the surface of the water and traction by at least one power boat. This is shown in Figure 8, where two boats 6 appear. In another preferred embodiment but not shown, the routing is done by means of a barge on which the box has been previously deposited. Again, it is found that the "prefabrication" of caissons 2 on a shipyard is particularly suitable since it is provided with suitable lifting means and launching docks. The routing is done until the "foot" of the restraint RE. The next step is to immobilize the box at sea. This can be done by any known means. However, it is preferred to use a seat integral with the seabed, on which the box is subsequently brought. An example of such a seat 7 is visible in Figures 9 and 11. It is integral with the seabed R consisting of rocks. It comprises embankment 72, concrete posts 73, a metal adjustment structure or a reinforced concrete slab 74. It is clear that the manufacture of this seat was made prior to the arrival of the box. The establishment of the latter is by ballasting and / or ballasting. Advantageously and as illustrated in Figure 9, the free distal end 120 of the pipe 1 is stabilized by its passage within a stud 121 of concrete. The connection of the box to the pipe can then be performed.
    [0007] The station can then be used as described in the introduction to this. In Figure 10 is shown a different embodiment of the distal end 120 which bears directly on a base 75 75 concrete and ensures stability. Finally, in Figure 11 is shown a protection system of the caisson 2 which here consists of a dike 8. It could be for example a floating breakwater or a protection system built into the box. Of course, depending on the power of the plant RE, it is possible to use several boxes 2 stowed to each other and arranged in series or in parallel. Considering that the prefabrication of the caissons brings many industrial advantages over an in situ site, particularly in an island context, that the geographical location of a marine WWTP 15 offers the possibility of shipping by sea any " parcel ", without limit of size or weight (with the stability of the" package "close) and that the establishment of a hydroelectric plant on land, at the edge of the coast, is subjected to very strong environmental constraints (Law Littoral in France), then the method according to the invention for designing and prefabricating a hydro-electric plant 20 in the form of a metal box in an industrial shipyard, then to route it by sea at the foot of the cliff. installing and having only to connect to the water reservoir, has many advantages over the realization of a conventional terrestrial plant (wells or caverns.) This allows in particular to get rid of difficulties following: 25 - routing, over the construction site, the various equipment on a site whose access is necessarily difficult (island area, seashore inaccessible, etc.); - construction of civil works (wells, caverns) or marine engineering (water intake) in a difficult environment (especially if the 30 geological characteristics are unfavorable, as is the case in Guadeloupe) - local industrial network no suitable for heavy work - verification of the smooth running of the plant and start-up late and risky - no overall industrialization possible.
    [0008] The prefabrication of the hydro-electric plant in the form of a metal box guarantees the obtaining of a quality product, a controlled completion time, an optimized cost, as well as the possibility of developing an industrial sector. .
    [0009] The implementation of the method according to the invention uses techniques known per se and proven, which are adapted to this particular case. They make use of combined studies of naval architecture, calculation of structure and resistance of materials, maritime engineering, logistics, and other specific studies (anti-corrosion, anti-fouling ...).
    [0010] The prefabricated plant fulfills the functions of pumping, turbining and power generation - and is therefore the very heart of the marine WWTP. It can be delivered virtually "turnkey" (good operation tested). Other advantages are mentioned below: - the factory resting directly within the lower basin (the sea), one is freed from any downstream conduct; - The power is adjustable and scalable depending on the number of boxes that can be added to each other. More specifically, the plant has the following advantages: 1. Compact plant due to its prefabricated character; 2. Transportable factory for its installation, as for its dismantling. This is very important, given the increasing environmental constraints on dismantling operations; 3. Plant type "Plug-in" (fast connection to different terrestrial networks: fluids, electricity ...); 4. The metal box immersed in seawater designed for a minimum service life of 50 years (without passage in dry dock). Finally, it can also be considered that the installation of the plant itself at the foot of the cliff has advantageous aspects: 1. Fixing the caisson to the ground by gravity method; 2. Design of a dam capable of withstanding cyclone-type environmental conditions in non-sheltered areas; 3. Realization of all the works in a very short meteorological window (less than 6 months).
    权利要求:
    Claims (11)
    [0001]
    REVENDICATIONS1. A method of installing a pumped energy transfer station, called "marine STEP", which comprises: - a water reservoir (RE) located at altitude relative to the sea level (M); a hydro-electric power plant (HE) adapted to operate as a pump-motor unit for pumping water from the sea (M) towards said water reservoir (RE), or as a turbine-generator unit to produce electricity by release of water, from the reservoir (RE) to the sea (M), via at least one pipe (1) connecting said water reservoir (RE) to said hydroelectric plant (HE) ; characterized by the fact that: - a hydroelectric plant (HE) is used which is in the form of at least one box (2) of which at least the lower part is watertight; - that said box (2) is conveyed to the "foot" of said water reservoir (RE); - that said box (2) is immobilized at sea (M); and that it is connected to said pipe (1).
    [0002]
    2. Method according to claim 1, characterized in that said box (2) is immobilized at sea (M) while it is partially immersed.
    [0003]
    3. Method according to claim 1 or 2, characterized in that the routing of said box (2) is achieved by placing it on the surface of the water and traction by at least one powerboat (6).
    [0004]
    4. Method according to claim 1 or 2, characterized in that the routing of said box (2) is achieved by placing it on a barge.
    [0005]
    5. Method according to claim 1 or 2, characterized in that the box is fully prefabricated and its operation tested.
    [0006]
    6. Method according to one of claims 1 to 4, characterized in that one uses a box (2) which projects at least one pipe (230) for connection to said pipe (1).
    [0007]
    7. Method according to one of the preceding claims, characterized in that prior to the immobilization of said box (2), is placed in place a seat (7) integral with the seabed, on which said box (2) is later brought .
    [0008]
    8. Method according to one of the preceding claims, characterized in that a means of protecting the caisson (2), such as a dike (8), a floating breakwater, is subsequently placed in place. or a built-in protection system.
    [0009]
    9. pumped energy transfer station, called "marine STEP" which comprises: - a water reservoir (RE) located at altitude relative to the sea level (M); and a hydroelectric plant (HE) operable as a pump-motor assembly for pumping water from the sea (M) to said water reservoir (RE), or as a turbine-generator unit to produce of electricity by release of water, from the reservoir (RE) to the sea (M), via at least one pipe (1) connecting said water reservoir (RE) to the sea (M), characterized in that the said hydroelectric plant (HE) is in the form of at least one at least partially watertight caisson (2) immobilized at sea (M), at the "foot" of the said water reservoir (RE). 20
    [0010]
    10. Station according to claim 9, characterized in that it comprises several boxes (2) stowed to each other.
    [0011]
    11. Station according to claim 9, characterized in that the at least one box (2) is prefabricated.
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    同族专利:
    公开号 | 公开日
    US20160341173A1|2016-11-24|
    FR3016663B1|2016-02-12|
    CN105917113A|2016-08-31|
    EP3094858A1|2016-11-23|
    EP3094858B1|2020-03-18|
    ES2791875T3|2020-11-06|
    WO2015107097A1|2015-07-23|
    WO2015107097A8|2015-09-24|
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    法律状态:
    2015-02-02| PLFP| Fee payment|Year of fee payment: 2 |
    2016-02-01| PLFP| Fee payment|Year of fee payment: 3 |
    2017-01-31| PLFP| Fee payment|Year of fee payment: 4 |
    2018-01-31| PLFP| Fee payment|Year of fee payment: 5 |
    2020-01-30| PLFP| Fee payment|Year of fee payment: 7 |
    2021-10-08| ST| Notification of lapse|Effective date: 20210905 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1450390A|FR3016663B1|2014-01-17|2014-01-17|METHOD OF INSTALLING AN ENERGY TRANSFER STATION BY "MARINE" PUMPING AND CORRESPONDING STATION|FR1450390A| FR3016663B1|2014-01-17|2014-01-17|METHOD OF INSTALLING AN ENERGY TRANSFER STATION BY "MARINE" PUMPING AND CORRESPONDING STATION|
    CN201580004742.4A| CN105917113A|2014-01-17|2015-01-15|Method for installing a so-called "marine" pumped-storage hydroelectric power station and corresponding station|
    EP15700574.5A| EP3094858B1|2014-01-17|2015-01-15|Method for installing a so-called "marine" pumped-storage hydroelectric power station and corresponding station|
    ES15700574T| ES2791875T3|2014-01-17|2015-01-15|Installation procedure of a pumping power transfer station called "marina" and corresponding station|
    PCT/EP2015/050628| WO2015107097A1|2014-01-17|2015-01-15|Method for installing a so-called "marine" pumped-storage hydroelectric power station and corresponding station|
    US15/111,018| US20160341173A1|2014-01-17|2015-01-15|Method for installing a so-called "marine" pumped-storage hydroelectric power plant and corresponding plant|
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