WO2019072549A1

WO2019072549A1 - Receiver, power plant and method for the utilization of solar energy

Info

Publication number: WO2019072549A1
Application number: PCT/EP2018/075972
Authority: WO
Inventors: Barbara Waldmann; Christian Storm
Original assignee: Bilfinger Engineering & Technologies Gmbh
Priority date: 2017-10-10
Filing date: 2018-09-25
Publication date: 2019-04-18
Also published as: DE102017123455A1

Abstract

The invention relates to a receiver (5) for a solar tower power plant (1, 30), having at least one receiver module (13) for the absorption of solar energy from solar radiation concentrated onto the receiver module (13) by mirrors (2), having a supply line (7) for supplying water (6) to be evaporated in the receiver module (13) and having a steam line (9) for discharging water (6) evaporated in the receiver module (13), wherein the receiver module (13) has a modular distributor (14) connected to the feed line (7). In order to devise a receiver which is more economical and nevertheless simple and reliable to operate, provision is made for the receiver module (13) to comprise a modular collector (16) connected to the steam line (9) and arranged above the modular distributor (14), and a multiplicity of modular pipes (15) connecting the modular distributor (14) and the modular collector (16) to one another, and for the receiver module (5) to be formed as a forced flow steam generator.

Description

Receiver, power plant and process for the thermal utilization of

solar energy

The invention relates to a receiver for a solar tower power plant, comprising at least one receiver module for absorbing solar energy of the solar radiation concentrated on the receiver module via mirrors, with a feed line to the solar array

Feeding of in the receiver module to be evaporated water and with a

Steam line for discharging water evaporated in the receiver module, the receiver module having a module distributor connected to the feed line. Furthermore, the invention relates to a power plant with such a receiver. In addition, the invention relates to a method for operating at least one such receiver or such a power plant.

There are already various power plants for the thermal utilization of solar energy, in which the solar radiation falling on mirrors is concentrated on one or more receivers. To achieve high efficiencies and the

To reduce specific plant costs, so-called solar tower power plants can be used. These have a multiplicity of mirrors which concentrate the solar radiation on at least one receiver. The at least one receiver absorbs the thermal energy of the concentrated solar radiation and releases it via a heat exchange to a heat transfer medium. In which

Heat transfer medium may be, for example, a molten salt or water or steam. Since the solar energy is not continuously available, the heat transfer medium can be temporarily stored in order to use the heat of the heat transfer medium later, such as during the night or cloudy. For this purpose, the heat of the cached heat transfer medium is often transferred to another heat transfer medium, typically water. The water is vaporized in a steam generator and overheated, to be subsequently expanded in a steam turbine. By superheated steam is meant a vapor having a temperature above the saturation temperature of the vapor at the corresponding pressure level. When relaxing the steam in the steam turbine, this drives a generator that generates electricity. The steam leaving the steam, relaxed steam is condensed and fed the recovered water back to the steam generator.

If necessary, but also on a caching of

Heat transfer medium dispensed and directly via the receiver, which can be composed of several receiver modules, steam generated, which is then expanded to generate electricity in a steam turbine. At least in such cases, the receiver or receiver module is assigned a supply line for supplying water to be evaporated in the receiver. The steam generated in the receiver leaves the receiver via a steam line, which is connected to a steam turbine

Electricity production can be connected. The receiver also comprises at least one module distributor connected to the supply line, which distributes the water supplied via the supply line to the module tubes of the receiver on which the

Concentrated solar radiation and in which the water is evaporated. The

Module distributor is arranged above or at least at the level of the upper ends of the module tubes, so that in the module tubes is always water and the vaporized in the modular tubes water is replaced by gravity due to gravity automatically flowing out of the module manifold water. This is also referred to as a natural circulation principle or of a receiver or receiver module configured as a natural circulation evaporator.

The known receivers are very robust and can be operated very simply and reliably due to the natural circulation. However, the disadvantages are the high equipment costs for the rather large and heavy receivers. These disadvantages are particularly significant during installation on a tower of a solar tower power plant. Therefore, the present invention has the object, the receiver, the power plant and the method respectively of the aforementioned and previously explained in more detail type and further develop that a

cheaper and yet easy and reliable to operate receiver is created.

This object is achieved in a receiver according to the preamble of claim 1, characterized in that the receiver module comprises a connected to the steam line and arranged above the module distributor module collector and a plurality of the module distributor and the module collector interconnecting module tubes and that the receiver module is designed as a forced continuous steam generator ,

The invention has recognized that dispenses with the natural circulation principle in which designed as an evaporator receiver and instead the receiver as

Forced passage receiver can be formed. This leads to lighter, smaller and cheaper receivers. Although the operation of the receiver requires a pump in order to be able to provide the forced passage of the receiver, and a higher procedural, in particular control engineering, effort, which is dispensable in a natural circulation evaporator, but they are

supposed disadvantages outweighed by the achievable advantages. Since the receivers can be made smaller and lighter, the entire tower of the solar tower power plant can be made lighter and less massive. In addition, the higher control effort is used to the effect that the receiver can always be operated even in different weather conditions and performance requirements of the solar tower power plant in an appropriate operating condition.

The receiver is equipped with at least one receiver module, in which the module distributor is arranged below a module collector, which in turn connected to the steam line for deriving the steam generated in the receiver module is. To connect the module distributor with the module collector of a receiver module, a plurality of module tubes is provided which extend from the lower module distributor to the upper module collector. It is in the

Module distributor distributes the water to be evaporated on the module tubes of the receiver module. The water flows upwards in the modular tubes and is vaporized by the solar radiation absorbed by the modular tubes. The steam thus formed rises in the modular tubes up, the steam can be superheated if necessary. The steam comes out of the modular pipes and is in the

Module collectors collected before the steam is then collected collected for further use, such as a steam turbine is fed to generate electricity. The

Water is pumped through the module distributor in the module tubes, resulting in the forced passage of the evaporator formed by the receiver. This also has the advantage that the amount and the temperature of the steam in the module collector can be specifically influenced by the variation of the amount of water supplied in the module distributor.

The aforementioned object is further achieved according to claim 5 by a power plant with a receiver supporting a receiver according to one of claims 1 to 4, comprising a plurality of mirrors for concentrating solar radiation on the module tubes of the receiver and a steam turbine connected to the steam line for relaxing the steam generated in the receiver, preferably for

Generating electricity in a generator that includes.

The advantages of the receiver used, namely in particular the compact and lightweight design, come with a corresponding power plant, which also as

Solar tower power plant can be designated, in particular to the extent. Furthermore, an efficient control of the receiver with regard to the amount of steam generated and the properties of the steam can be achieved. The properties of the steam result in particular from the temperature and / or the pressure of the steam. The temperature and pressure can be in the case of electricity generation the steam in a steam turbine are adapted to the steam turbine to operate the steam turbine efficiently in a predetermined load range can.

In addition, the aforementioned object according to claim 9 is achieved by a method for operating at least one receiver according to one of claims 1 to 4, preferably for operating a power plant according to one of claims 5 to 8,

in which at least one receiver module absorbs the solar energy from the solar radiation concentrated via mirrors on the module tubes of the receiver module,

- In which the module distributor of the at least one receiver module on the

Supply line is forcibly acted upon by a flow of water, in which the module distributor supplied water flow on the

Distributed module tubes of the receiver module and completely evaporated and / or overheated when flowing through the module tubes in the direction of the module collector and

in which the generated and / or superheated steam is discharged via the module collector and the steam line.

This mode of operation of the receiver results from the recognized as advantageous

Forced flow principle for the operation of a receiver. This principle allows the advantageous embodiment and control of a receiver, which is particularly important for the operation of a solar tower power plant of particular importance. The

corresponding advantages have been previously described in detail with respect to the receiver and the power plant.

Hereinafter, the receiver, the power plant and the method of the aforementioned type for the sake of simplicity and to avoid unnecessary repetition are described together, without in each case to distinguish between the receiver, the power plant and the process. For a person skilled in the art, however, it follows from the context which feature is particularly preferred in each case with respect to the receiver, the power plant and the method. In a first particularly preferred embodiment of the receiver are the

Modular tubes at least substantially parallel to each other and / or arranged at least substantially in a common plane. Both improve the

Absorption of solar radiation concentrated on the receiver, as the

Sun radiation as completely as possible hits the module tubes of the at least one receiver module. In this context, it is particularly advantageous if the module tubes form an at least substantially closed absorber surface for absorbing solar energy of the solar radiation concentrated on the receiver module via mirrors. In other words, the receiver module through the module tubes in the direction of the concentrated sun rays

be closed, even if the individual module tubes do not have to touch each other in detail to allow a trouble-free thermal length compensation. In order to be able to adjust the volume of water supplied to the module distributor targeted, it makes sense, if the supply of the corresponding

Module distributor of at least one receiver module is associated with a pump. The so allocated amount of water flow is then on the module tubes of the

Distributed receiver module. In order to influence the distribution, valves can be assigned to the module tubes. But this is usually off

Cost reasons can be dispensed with. As an alternative or in addition to a pump, it is also possible for a control valve to be assigned to this or the supply line for setting the water flow rate supplied to the module distributor. By

Increasing closing or increasing opening of the control valve can the

Module manifold more or less water are supplied. In addition, a control device for controlling the at least one receiver module supplied water flow rate via the at least one pump and / or the at least one control valve based on the steam temperature in the module collector and / or the steam line can be provided. Thus, the steam properties can be specified, which are useful for further use of the steam and the controller regulates the water supply so that these steam properties also be achieved. Alternatively or additionally, however, the control device can also contribute to a homogenization of the steam generated in parallel via a plurality of receiver modules of a single receiver. To the distribution of the water flow rates over the modular tubes of a

To be able to adjust receiver module, for example, to compensate for a different absorption of heat at least individual module tubes, at least one module tube, at least one group of modular tubes or each module tube, the at least one receiver module at least one control valve for adjusting the at least one module tube supplied water flow rate be assigned. For controlling the at least one control valve for adjusting the distribution of the mass flows over at least individual module tubes, a control device for controlling the flow of water supplied to the at least one module tube via the at least one control valve on the basis of

Steam temperature may be provided at the outlet of the at least one module tube, in the module collector and / or the steam line.

Depending on the configuration and the planned use of the receiver, it may be expedient to combine a plurality of receiver modules to form a receiver module group and / or to a receiver, preferably running in a circle around a central and vertical longitudinal axis. The former allows it, individual

To operate receiver module groups together and different from other module groups, what different boundary conditions different

Receive module groups account or allow a more differentiated and / or easier controllability of the receiver as a whole. Therefore, in one of the cases mentioned, it is of particular advantage if at least one control device is provided for controlling the various receiver modules and / or

Receiver module groups supplied water flow rates on the at least one pump and / or the at least one control valve based on the steam temperature in the module headers and / or steam lines of the various receiver modules and / or receiver module groups is provided. In a first particularly preferred embodiment of the power plant, a combustion chamber for burning fuel to form flue gas and a steam generator for generating steam by heat exchange with the flue gas are provided. This allows a thermal connection of the whole

Perform power plant process, such as exchanged by the different ways steam generated between the processes and / or shared. If necessary, this leads to a higher overall efficiency or to a more stable overall system to be operated. For these reasons, it is particularly preferable for the steam generated in the receiver and in the steam generator to be expanded one after the other and / or jointly in the steam turbine. This can be especially effective.

A thermo-technical integration of subsystems can be particularly useful, for example, when the steam generator has a superheater for generating superheated steam through the heat exchange with the flue gas and also the at least one steam line the receiver for common overheating of the steam generated in the steam generator and the receiver with a common

Superheater connects. In this superheater, the superheating of the steam can then be replaced by a heat exchange with the hot one formed by the combustion

Flue gas done. This is due to the size and design of such a superheater. In principle, the steam could also be overheated together by a heat exchange with concentrated solar radiation. However, this will be less preferred in many cases due to the larger and heavier design of the receiver on the tower of the solar tower power plant. In addition, the solar radiation is not as reliable available as hot flue gases can be generated to overheat the steam.

An effective and efficient use of the generated steam can be easily realized if a connection to the connection of the at least one

Steam line of the receiver and the at least one steam line of the superheater is provided with the steam turbine. In this way, the generated in the receiver Steam and the superheated superheated steam to be relaxed together, for example, thereby to drive a generator to generate electricity.

In a first particularly preferred embodiment of the method, the generated and / or superheated steam in a steam turbine, preferably for

Power generation in a generator, relaxed. This way, electricity can be generated easily and efficiently and the steam used accordingly.

A particularly effective heat integration can be achieved if not only the solar energy used, but also a fuel is burned in a combustion chamber to produce flue gas, which evaporates water through a heat exchange in an evaporator of a steam generator. The steam thus obtained and the steam obtained via the receiver can then be superheated together in a superheater. This is done for the sake of simplicity by a

Heat exchange with the flue gas formed during combustion. This process is easier to control than the overheating of the steam on the tower of the

Solar tower power plant, which also makes the arrangement of a large and heavy

Overheater on the tower of the superheater would be required, although this may be possible in principle and in some cases even preferred. The jointly superheated steam is then used for the sake of simplicity together in a steam turbine, wherein the steam is expanded and used to drive a power generating generator.

Alternatively or additionally, a fuel may be burned in a combustion chamber so as to produce a flue gas which is replaced by a corresponding one

Heat exchange in a steam generator vaporizes water and / or overheats steam. The steam withdrawn from the steam generator can then be expanded together with the steam generated in the receiver in a steam turbine, preferably for generating electricity in a generator. Again, be an effective

Thermal integration and a reduction of the required system parts achieved. In order to facilitate the use of the steam in a preferred, reliable and efficient manner, the module distributor of the at least one can

Receiver module and / or the module distributors of at least one

Receiver module group supplied amount of water flow on the basis of the steam temperature and / or the vapor pressure in the module collector and / or the steam line of the at least one receiver module and / or the at least one

Receiver module group are regulated. In other words, it is possible to specify with which properties the steam is to be provided and then to generate a vapor with these properties. This may help to approximate the properties of vapor streams from different sources and / or to more efficiently utilize the vapor.

To regulate or control the properties of the generated steam, wherein in particular the amount of steam, the temperature and the pressure of importance, it makes sense if the supplied water flow over at least one of the at least one receiver module and / or the at least one

Receiver module assigned pump is regulated or at least set. Alternatively or additionally, however, the supplied water flow rate can also be regulated via at least one control valve assigned to the at least one receiver module and / or the at least one receiver module group.

In this case, it is generally preferred if a control device is provided which regulates the at least one supplied water flow and the at least one receiver module and / or the at least one

Assigned to the receiver module group.

In order to enable the generation of the steam in a preferred, reliable and efficient manner, the at least one module tube, in particular at least one group of modular tubes or each module tube, can supply the at least one module distributor of the at least one receiver module

Water flow rate based on the steam temperature at the outlet of the at least one Module tube, in the module collector and / or the steam line of the at least one receiver module and / or the at least one receiver module group are regulated. In addition, it is convenient for the sake of simplicity and for more accurate control of the supplied water flow, the supplied

Controlling the amount of water flow via at least one control valve associated with the at least one module tube, in particular at least one group of modular tubes or each module tube, of the at least one module distributor (14) of the at least one receiver module (13). Here, too, it is generally preferred if a control device is provided which regulates the at least one supplied water flow rate and which is associated with the at least one module tube or the respective control valve.

In the following we will explain the invention with reference to a purely exemplary embodiments showing drawing. In the drawing shows

Fig. 1 shows a first inventive power plant in a schematic

2 shows a receiver module of the receiver of the power plant of FIG. 1 in a perspective view, FIG.

Fig. 3 shows a detail of the receiver module of FIG. 2 concerning a

Module distributor and module tubes in a sectional view,

Fig. 4 shows the receiver module of the receiver of the power plant of FIG. 1 in a schematic representation

Fig. 5 shows the receiver of the power plant of FIG. 1 in a perspective

Presentation, Fig. 6 shows a second inventive power plant in a schematic

Presentation and

Fig. 7 shows a third power plant according to the invention in a schematic

Presentation.

In FIG. 1, a power plant 1 designed as a solar tower power is shown with a series of mirrors 2 which concentrate the solar radiation 3 impinging on the mirrors 2 onto the receiver 5 of the power plant 1 arranged on a tower 4. The receiver 5 absorbs the heat of the receiver 5 concentrated

Solar radiation 3 and is traversed by water 6, which is supplied via a feed line 7 to the receiver 5 and vaporized on passing through the receiver 5 due to the heat exchange with the heated by the absorbed solar radiation 3 Receiver 5. Preferably, the resulting vapor 8 is overheated during further passage through the receiver 5. The temperature of the steam 8 is then significantly above the condensation temperature of the steam 8 at the corresponding pressure level. The superheated steam 8 is then over a

Steam line 9 forwarded to a steam turbine 10, in which the steam is expanded 8, thereby driving a coupled to the shaft 11 of the steam turbine 10 generator 12. The generator 12 generates electricity in a manner known per se, which can be fed into a power grid in a likewise known manner.

The receiver 5 provided on the tower 4 of the power plant 1 shown in FIG. 1 has a number of individual receiver modules 13, one of which is shown in detail in FIG. The receiver module 13 comprises a module distributor 14, which is connected to a feed line 7 for water 6. Via the supply line 7, the water 6 passes into the module distributor 14, which distributes the water 6 to the module tubes 15 of the receiver module 13. The module tubes 15 all start from the module distributor 14 and lead upwards to a module collector 16. The water 6 is thus passed in parallel through the module tubes 15 from the module distributor 14 to the module collector 16. In this case, the module tubes 15 extend at least in sections the module distributor 14 and the module collector 16 parallel to each other and in a common plane. In this area, the module tubes 15 together form an at least substantially closed surface onto which the solar radiation 3, which is concentrated by the mirrors 2, strikes the receiver module 13. How the module tubes 15 are guided is shown in detail in FIG.

In order to easily manufacture the receiver module 13 and to be able to easily, tightly and reliably connect the module tubes 15 to the module distributor 14, the connections of the module tubes 15 to the module distributor 14 are shown and to that extent

preferred receiver module 13 is not provided along a single line.

Rather, in the illustrated and so far preferred receiver module 13, the module tubes 15 are combined into three groups of tubes 17,18,19, each group of tubes 17,18,19 along another line 20,21,22 with the

Module distributor 14 is connected. The three lines 20,21,22 are also aligned at least substantially parallel to each other. The connection of the module tubes 15 to the module header 16 is configured in the same way as the connection between the module tubes 15 and the module distributor 14 shown in FIG. 3, which is why a separate detailed representation of the connection of the module tubes 15 with the module header 16 can be dispensed with. In principle, depending on the particularities of the particular application, the module tubes can also be combined to form more or fewer groups of tubes, in particular to two or three groups of tubes.

The concentrated by the mirrors 2 and striking the receiver module 13

Solar radiation 3, is absorbed by the module tubes 15, to which the module tubes 15 are preferably formed black. In this case, the thermal energy of the solar radiation 3 is delivered via a heat exchange to the water 6 guided in the interior of the module tubes 15 or the vapor 8 guided inside the module tubes. The demand superheated steam 8 is then in the module collector 16th

collected. In this case, the amount of water supplied is chosen so that the supplied water 6 completely evaporated in the module tubes 15. So it comes exclusively Steam 8 in the module header 16, which is then delivered to the connected steam line 9.

For setting and / or regulating the amount of water supplied, as shown in particular in FIG. 4, at least one pump 23 and / or at least one control valve 24 may be provided. Preferred is this one

Control device 25 is provided, which controls the pump 23 and / or the control valve 24 in a corresponding manner. In order to adjust the control of the pump 23 and / or the control valve 24 to the operation of the receiver 5, the

Temperature and / or the pressure of the steam 8 in the module header 16 or in the

Steam line 9 via at least one suitable sensor 26 are measured. Then, the controller 25 can adjust the water supply so that the

desired temperature and / or the desired pressure of the steam 8 im

Module collector 16 or in the steam line 9 sets.

The receiver 5 shown in detail in FIG. 5 and insofar preferred comprises a series of receiver modules 13 which are arranged in a circle in order to be able to absorb solar radiation 3 all around. The individual receiver modules 13 are all arranged parallel to one another and, moreover, are also operated parallel to one another, the module distributors 14 and the module collectors 16 preferably being connected to each other with the same supply line 7 or with the same steam line 9. It is in this way an at least substantially closed circumferential absorption surface for it on the mirror second

concentrated solar radiation 3 provided. Consequently, the mirrors 2 can also be circumferential to the tower 4 of the power plant 1 or circular to the longitudinal axis of the

Receivers 5 are arranged to capture solar radiation 3. However, this can lead to the solar radiation 3 being concentrated to different degrees on the individual receiver modules 13, which can then be compensated for by a specific regulation of the receiver modules 13. The control device 25 ensures that the more water 6 is supplied to a receiver module 13, the greater the solar energy absorbed by the receiver module 13. So will achieved that generated in the module headers 16 of the various receiver modules 5 steam 8 with at least similar pressure and at least similar temperature and collected the steam line 9 is passed. In Fig. 6, an alternative power plant 30 is shown, which is formed as a combination of a solar tower power plant and a conventional power plant. The part of the power plant 31, which can be regarded as the solar tower power plant is formed analogous to the power plant 1 shown in FIG. 1, which is why the same components bear the same reference numerals. The part of the power plant 32, which as

Conventional power plant includes a storage tank 33 for temporarily storing a fuel 34 and a combustion chamber 35 for firing the fuel to form flue gas 36. The flue gas 36 then flows through a steam generator 37, the superheater 38, an evaporator 39 and a feedwater preheating 40, which are traversed by the flue gas 36 in sequence. The water 6 and the steam 8 flow in countercurrent thereto through the steam generator 37. The steam leaves the steam generator 37 as well as the receiver 5 in the overheated state. The two superheated steam streams from the receiver 5 on the one hand and the steam generator 37 on the other

brought together and then passed together in a steam turbine 10, in which the steam is relaxed 8 and drives a generator 12 for generating electricity. The steam leaving the steam turbine 10 is condensed and fed back to the receiver 5 and the steam generator 37. The ratio in which the condensate from the steam turbine 10 to the receiver 5 and the steam generator 37 is passed, can be fixed or regulated by the control device 25. After leaving the steam generator 37, the cooled flue gas 36 is passed on to a chimney 41. If necessary, the flue gas 36 can be cleaned before reaching the chimney 41 in a known manner, which is therefore not shown, to the flue gas 36 before discharging to the environment through the chimney 41 of

Dispose of contaminants. FIG. 7 shows an alternative power plant which corresponds to that shown in FIG. 6

Power plant is very similar, so in this case only on the

Variation of the power plant shown in FIG. 7 is received. In the receiver 5, solar thermal water 6 is evaporated and then combined with the vapor 8 generated in the evaporator 39 of the steam generator 37 by means of the flue gas 36. The steam 8 is then supplied together to a superheater 38, in which the steam 8 is overheated by a heat exchange with the flue gas 36. The superheated steam 8 is then, as already described, together in one

Steam turbine 10 relaxes, wherein the shaft 11 of the steam turbine 10 drives a generator 12, which generates electricity in this way and feeds the electricity into a power grid.

LIST OF REFERENCE NUMBERS

1 power plant

2 mirrors

3 solar radiation

4 tower

5 receivers

6 water

7 feed line

8 steam

9 steam line

10 steam turbine

11 wave

12 generator

13 receiver module

14 module distributor

15 modular tubes

16 module collectors

17,18,19 groups of pipes

20,21,22 lines

23 pump

24 control valve

25 control device

26 sensor

30 power plant 31.32 parts of the power plant

33 storage tanks

34 fuel

35 combustion chamber

36 flue gas

37 steam generator

38 superheaters

39 evaporator

40 Feed water preheating 41 Fireplace

Claims

claims

Receiver (5) for a solar tower power plant (1,30), with at least one

Receiver module (13) for absorbing solar energy of the mirror (2) on the receiver module (13) concentrated solar radiation (3), with a

Feed line (7) for supplying in the receiver module (13) to be evaporated water (6) and with a steam line (9) for discharging in the receiver module (13) evaporated water (6), wherein the receiver module (13) one with the feed ( 7) has associated module distributor (14),

d a d u r c h e s e n c i n e s, d a s s

the receiver module (13) has a module collector (16) connected to the steam line (9) and arranged above the module distributor (14) and a multiplicity of module tubes (15) interconnecting the module distributor (14) and the module collector (16); Receiver module (5) is designed as a forced flow steam generator.

Receiver according to claim 1,

d a d u r c h e s e n c i n e s, d a s s

the module tubes (15) are arranged at least substantially parallel to one another and / or at least substantially in a common plane, and that, preferably, the module tubes (15) have an at least substantially closed absorber surface for absorbing solar energy via the mirror (2) on the Receiver module (13) concentrated solar radiation (3) form.

Receiver according to claim 1 or 2,

d a d u r c h e s e n c i n e s, d a s s

the supply line (7) of the at least one receiver module (13) has a pump

(23) and / or a control valve (24) for adjusting the module distributor (14) and that, preferably, a control device (25) for controlling the at least one receiver module (13) supplied water flow rate through the at least one pump (23) and / or the at least one control valve (24) based on the steam temperature in the module collector ( 16) and / or the steam line (9) is provided.

Receiver according to one of claims 1 to 3,

d a d u r c h e s e n c i n e s, d a s s

at least one module tube (15), in particular at least one group of modular tubes (15) or each module tube (15), of the at least one

Receiver module (13) is associated with at least one control valve for adjusting the at least one module tube (15) supplied water flow and that, preferably, a control device for controlling the at least one module tube (15) supplied water flow over the at least one control valve based on the steam temperature at the outlet the at least one module tube (15), in the module collector (16) and / or the steam line (9) is provided.

Receiver according to one of claims 1 to 4,

d a d u r c h e s e n c i n e s, d a s s

a plurality of receiver modules (13) are combined to form a receiver module group and / or a receiver (5), preferably running circularly around a central and vertical longitudinal axis, and that, preferably, at least one control device for controlling the various

Supplied to receiver modules (13) and / or receiver module groups

Flows of water via the at least one pump (23) and / or the at least one control valve (24) based on the steam temperatures in the

Module collectors (16) and / or steam lines (9) of the various

Receiver modules (13) and / or receiver module groups is provided. Power station (1, 30) having a tower (4) carrying a receiver (5) according to one of Claims 1 to 5, having a plurality of mirrors (2) for concentrating solar radiation (3) on the module tubes (15) of the receiver (3). 5) and with a steam turbine (10) connected to the steam line (9) for relaxing the steam (8) generated in the receiver (5), preferably for generating electricity in a generator (12).

Power plant according to claim 6,

d a d u r c h e s e n c i n e s, d a s s

a combustion chamber (35) for burning fuel (34) to form flue gas (36) and a steam generator (37) for generating steam (8) by heat exchange with the flue gas (36) are provided and that in the receiver (5) and steam (8) generated in the steam generator (37) is expanded successively and / or jointly in the steam turbine (10).

Power plant according to claim 7,

d a d u r c h e s e n c i n e s, d a s s

the steam generator (37) has a superheater (38) for generating superheated steam (8) by heat exchange with the flue gas (36) and that the at least one steam line (9) the receiver (5) to the common

Overheating of the steam generated in the steam generator (37) and the receiver (5) (8) with the superheater (38) is connected.

Power plant according to one of claims 7 or 8,

d a d u r c h e s e n c i n e s, d a s s

a connection for connecting the at least one steam line (9) of the

Receivers (5) and at least one steam line of the superheater (38) with the

Steam turbine (10) for common relaxation of the receiver (5) generated

Steam (8) and in the superheater (38) superheated steam (8) is provided.

10. A method for operating at least one receiver (5) according to one of claims 1 to 5, preferably for operating a power plant (1, 30) according to one of claims 6 to 9,

in which at least one receiver module (13) absorbs solar energy from the solar radiation (3) concentrated via mirrors (2) onto the module tubes (15) of the receiver module (13),

- In which the module distributor (14) of the at least one receiver module (13) via the supply line (7) is forcibly acted upon by a flow of water,

- In which the module distributor (14) supplied amount of water flow distributed to the module tubes (15) of the receiver module (13) and when flowing through the module tubes (15) in the direction of the module collector (16) completely evaporated and / or overheated and

- In which the generated and / or superheated steam (8) via the module collector (16) and the steam line (9) is discharged.

11. The method according to claim 10,

in which the generated and / or superheated steam (8) is expanded in a steam turbine (10), preferably for generating electricity in a generator (12).

12. The method according to claim 1 or 11,

in which a fuel (34) is burned in a combustion chamber (35),

in which water (6) is vaporized by heat exchange with the flue gas (36) formed in the combustion in an evaporator (39) of a steam generator (37),

- In which the steam (8) of the steam generator (37) and the steam (8) of the

Receivers (5) is overheated by heat exchange with the flue gas (36) formed during combustion together in a superheater (38) and

- In which the superheated steam (8) in a steam turbine (lO), preferably for generating electricity in a generator (12), is relaxed.

13. The method according to claim 10 or 1,

in which a fuel (34) is burned in a combustion chamber (35),

in which water (6) is vaporized and / or steam (8) is overheated in a steam generator (37) by heat exchange with the flue gas (36) formed during combustion,

- In which the steam (8) of the steam generator (37) and the steam (8) of the

Receivers (5) together in a steam turbine (10), preferably for

Power generation in a generator (12), is relaxed. 14. The method according to any one of claims 10 to 13,

in which the module distributor (14) of the at least one receiver module (13) and / or the module distributors (14) of the at least one

Receiver module group supplied water flow on the basis of

Steam temperature in the module collector (16) and / or the steam line (9) of the at least one receiver module (13) and / or the at least one

Receiver module group is regulated and

in which, preferably, the supplied water flow rate via at least one of the at least one receiver module (13) and / or the at least one receiver module group associated pump (23) and / or the supplied amount of water flow via at least one of the at least one receiver module (13) and / or the at least one receiver module group associated control valve (24) is controlled.

15. The method according to any one of claims 10 to 14,

- In the at least one module tube (15), in particular at least one

Group of modular tubes (15) or each module tube (15), the at least one module distributor (14) of the at least one receiver module (13) supplied amount of water based on the steam temperature at the outlet of at least one module tube (15), in the module collector (16) and / or the steam line (9) of the at least one receiver module (13) and / or the at least one

Receiver module group is regulated and - in which, preferably, the supplied water flow rate over at least one of the at least one module tube (15), in particular at least one group of modular tubes (15) or each module tube (15), the at least one module distributor (14) of the at least one receiver module (13) associated control valve is controlled.

16. The method according to claim 14 or 15,

wherein the supplied amount of water flow over at least one of the at least one receiver module (13) and / or the at least one

Receiver module group and / or the at least one module tube (15), in particular at least one group of modular tubes (15) or each module tube (15), associated control device (25) is controlled.