WO2019219128A1

WO2019219128A1 - Solar power plant

Info

Publication number: WO2019219128A1
Application number: PCT/DE2019/100440
Authority: WO
Inventors: Ryszard Dzikowski
Original assignee: Ryszard Dzikowski
Priority date: 2018-05-17
Filing date: 2019-05-15
Publication date: 2019-11-21
Also published as: DE112019002505A5

Abstract

The present invention relates to a solar power plant with which the light beams (500) of the sun are focused onto a central radiation receiver (F) by a plurality of reflectors (11) which are arranged in rows and have inner reflective effective surfaces, characterised in that the focusing reflectors (11) are formed from parabolic ring parts the outgoing beams of which are oriented substantially along a common axis.

Description

Solar power plant

DESCRIPTION

Technical area

The present invention relates to a solar power plant according to the preamble of patent claim 1.

State of the art

More than 100 years ago, industrial solar power plants will be used to convert solar energy into other forms of energy †. The solar radiation is focused on the absorber with the aid of different concentrating optics. This results in very high process temperatures, which are converted, for example, into water vapor. Mi † the steam then heat engines and generators are driven, which generate the electric power.

From the prior art, three high † imperper † ur-Sys † eme known: Paraboirinnen-, tower power stations and parabolic mirrors (Dish). However, these systems have the distinct disadvantage of causing very high investment, operating and maintenance costs. A significant proportion of costs exist for parabolic trough power plants for the mirrors and their support structure as well as for kilometer-long pipeline systems. The tower power plants need a very high number of biaxially nachgeführ th mirrors, this tracking is very complex and expensive. With parabolic mirrors (Dish) † even the biaxial tracking accounts for more than 40% of the total cost. A major problem with all the so-called solar thermal power plants is the contamination of the opti's component by the location-related weather conditions. Since the profitability of power plants only in desert areas with a high If this is done immediately, the optics there must be constantly cleaned to avoid the reflection losses. One exception is described in US 9851544 and WO 2009/1 1 7840 A2 described two parabolic trough power plants, whose optical components are protected by glass or foil ge weather influences and wind loads.

Another and little-known way of converting solar radiation into thermal energy is, for example, a hocheffi ziente optical lens, under the English name: Ring Array Solar Concentrator, which consists of a series of nested conical ring reflectors. The parabolic mirrors US 2008/0216822, DE 1 12009001 131 similar arrangement is expensive to purchase due to the complex production, and it is also unprotected against weather, which significantly reduces the cost of the plants (DE 3032849, US 4347834, US 6620995, WO 201 1/076963, US 1421506).

Presentation of the invention

The present invention has for its object to provide a one-time, more powerful and, above all, more cost-effective solar power plant, in which the disadvantages mentioned are not present.

According to the invention the above object is achieved according to the preamble of claim 1 in conjunction with the characterizing features. Advantageous embodiments and further developments of the solar power plant according to the invention are specified in the dependent Unteransprü chen.

The present invention relates to a solar power plant, by means of which the light rays of the sun are focused with a plurality of row-th arrange reflectors with internally mirrored active surfaces on a central radiation receiver, wherein the focusing reflector are formed of parabolic annular files whose outgoing rays are aligned substantially along a common axis.

Brief description of the drawings

Other objects, features, advantages and applications of the solar power plant according to the invention will become apparent from the fol lowing description of embodiments based on the Zeichnun gene. All described and / or illustrated features alone or in any combination form the subject of the invention, regardless from the summary in individual requirements or their dependency.

In the drawings show

Fig.l the partial ring reflector (25) and its components (1 1);

[001 1] FIG. 1 a is a plan view of the partial ring reflector (25);

Fig.l b light beams (500) and forming a focal point (F) at the exit point of the optical system (25);

A plurality of interconnected partial ring reflectors (25) as a multifocal optics (30);

Fig. 2a is a plan view of the multifocal optic (30);

A wire frame (15, 16, 17) for the attachment of the optical component of the multifocal optics;

[001 6] FIG. 4 shows another embodiment of the multifocal optic (35); [001 7] FIG. 4a top view of the multifocal optic (35);

Fig. 5 is an exploded view of another embodiment of the multifocal optic (40);

Fig. 5a is a plan view of a multifocal optic (40);

Fig. 6 is an exploded view of an entire module (50);

Fig. 6a is a side view of the module (50);

Fig. 6b is a plan view of the module (50);

A closed module (50);

Fig. 8 two interconnected modules (65) on a truss with support structure (60, 61, 61 a, 61 b, 62, 63);

8a shows a further illustration of the two modules (65);

FIG. 9 shows an element of the solar power plant (85) on a column; FIG.

9a, the back of an element of the solar power plant (85);

10 shows an embodiment of the solar power plant (100) with nine double modules;

Fig.l Oa the back of the solar power plant (100);

Fig. 1 shows the urban variant of the solar power plant (150);

Fig. 11a shows the lateral front of an urban solar power plant (150). Embodiment of the invention

Fig. 1 shows the individual partial ring Reflekfor the Ringkonzenfrafors the focusing optics invention (25) with the partial ring Reflekforen (1 1) and a miffigen full-ring Reflekfor.

Fig.l a is a plan view of the individual partial ring reflector of the Ringkonzenfrafors the focusing optics invention (25) with the partial rings (1 1) and a miffigen full-ring Reflekfor shown.

FIG. 1 b shows clear-focus (500) and formation of a focal point (F) below the optical system (25).

Fig. 2 shows a multifocal optic (30) comprising four partial ring reflecting fores of the ring concentrator (25) which were connected in rows by means of a girder (15) and struts (17) and were available over a dimension of 3 × 3 m.

FIG. 2a shows a plan view of the 3 × 3 m multi-beam optical system (30) comprising four partial ring reflecting fores of the ring concentrator (25) which have been connected in rows by means of a nozzle (15) and struts (17). It can be clearly seen that all four corners are almost completely filled with the optical components.

3 shows a wire nozzle 15, 16, 17 for fixing the optical component. The framework is already made in the form of Parabelab sections and ready for the uptake of optical compo th, which may for example consist of coated with mirror film hardened plastic, paper or cured textiles. 4 shows another embodiment of the 3 × 3 m multifocal optics (35) with narrow partial ring reflectors (12), which consist of 1/10 of the original diameter of the ring concentrator, which is fastened on a framework (15 a) Were †.

4 a shows a plan view of the other embodiment of the 3 × 3 m multifocal optics (35) with narrow partial ring reflectors (12), which consist of 1/10 of the original diameter of the ring concentrator, which is mounted on a wire ( 15a) were fastened †.

[0040] FIG. 5 shows focusing optics (40) with two partial ring reflectors of the ring concentrator each having an original width of 3 m, which were divided in the middle. By this measure, smaller parts parts finished (13), which can then be connected by means of Drahtgerüs † (15 b), (1 7) uncomplicated to a module.

FIG. 5a shows a top view of the focusing optics 40 with two partial ring reflectors of the ring concentrator 14 each having an original width of 3 m, which were divided in the middle.

FIG. 6 shows, in an exploded view, an entire module (50) with multifocal optics (31), which consists of twelve partial ring reflectors of the ring concentrator and in a supporting structure (51, 52, 53, 54, 55 ) is included. Mi † (51) becomes the central structure, (52) stub axle, (53) upper structure for the glass / foil cover, (54) lower structure with longitudinal beams (54a) for hermetic / pho † ovolian receivers, (55) supporting Flalb wheel with transverse grooves at the bottom, (56) glass cover and (59) Floach power solar cells. Other receivers can also be used here, for example, Stirling engines, thermoelectric generators TEG and any Ar † of thermovoltaic receivers like. FIG. 6a shows in a lateral exploded view a whole module (50) with multifocal optics (31), which consists of twelve partial ring reflectors of a ring concentrator.

FIG. 6b shows a top view of the entire module (50) in an exploded view of multifocal optics (31), which consists of twelve partial ring reflectors.

FIG. 7 shows the entire module (50) as a closed environment for the multifocal optic (31) as well as hermetic / pho † ovolian receiver. The entry surface of the solar radiation of the module can be very easily with cleaning machines as described for example in DE 10 2018 001 958.7, clean.

Fig. 8 shows † a double module 65) mounted on a support structure of curved beam (60) and three support posts mi † axle bearings (61), (61 a). The two modules (50) are connected both laterally (50a) and through a common central connecting axle (52a) and are mounted on three support posts (61), (61a). Thus, this arrangement (65) along the longitudinal axis of the axle journal (52) and the common central connecting shaft (52a) are pivoted horizontally. The movement is carried out by means of a grooved roller (61b), which has been dovetailed with the grooves of the Flalb wheel (55) and is driven by the connected drive units † (61c). The weight of the double module is supported by means of four flat gears (55) and the underlying castors. Whereby the stub axles (52) and the central connecting axle (52a) also take up the weight of the double module. The bottom transverse axis of rotation (62) is designed so that the entire order to (65) mounted on a column and can be pivoted in the vertical angle. The pivotal movement is performed by the worm half-wheel (63), the worm (63a) and the drive unit † (64). The module is set up in north-south direction †. FIG. 8a shows another illustration of the double module (65) as in FIG.

9 shows a Einzelelemen † of the solar power plant (85) with the double module (65) mounted on a support structure of bent Bal ken (60) and three support posts mi † axle bearings (61, 61 a), rotation axis (62), Worm half gear (63), the worm (63a) and drive unit † (64) and a column (70). The Einzelelemen † of the solar power plant (85) is pursued two-axis the supposed course of the Sun †. The horizontal tracking is performed along the axis (x) on axes (52, 52a) and the ver vertical tracking along the axis (y) on axis (62) †.

FIG. 9a shows the same individual element † of the solar power plant (85) from a different angle.

Fig. 10 shows † the whole of the solar power plant (100) consisting of nine individual elements (85) which have been connected to two opposite bars (77) and by a common connection axis (62). The entire solar power plant (100) is biaxially pursued the supposed course of the Sun †. The horizontal tracking is performed along the axis (x) on axes (52, 52a) and the vertical tracking along the axis (y) on a common connec tion axis (62) †.

Fig. Oa show † the same entire of the solar power plant (100) as in Fig.l 2 from a different angle. Mi † (77) shows the exact location of the connection bars.

Fig. 1 shows † another embodiment of the solar power plant (150) for urban purposes. The nine double modules (66) were installed on a supporting structure (82) and this arrangement was installed on a column (80) and slewing gear (81) †. The solar power plant (150) is also biaxially pursued the supposed course of the Sun †. The vertical one Tracking is carried out along the axis (52) and tracking at the horizon angle around the central axis of the column (80). The horizontal movement of the bogie including the supporting structure (82) and the double modules (66) is carried out by means of a worm wheel (83), worm (83a) and the drive unit (84). The vertical tracking of the double modules will take place along the axes (52), (52a). Fig.lla shows the same ge entire of the solar power plant (150) as in Fig.l 1 from another Blickwin angle. With (82a) an attachment of the worm drive and with (83a) the worm was marked.

Fig. 1a shows the same entire of the solar power plant (150) as in Fig.l 1 from a wider angle. With (82a) an attachment of the worm drive and with (83a) the worm was marked.

Numerous experiments according to the invention with Fresnel lenses of different sizes and fluid power solar cells have shown that two or more central segments of a Fresnel lens produce approximately 120% power compared to a single lens with a focus point †. Since the optical properties of ring concentrators with the Fresnel lenses are very similar, offers the partial ring reflectors here a cheap manufacturing possibility to produce large-area multifocal cylinder optics low.

Because in the protected environment the multifocal Zylinderopti kens are constantly clean and safe against wind loads, no opti rule losses occur. In addition, very high radiation intensity up to 2000 ° C can be achieved here without high technical complexity. With wire of appropriate strength, individual elements with properties of a highly efficient spherical lens can be manufactured easily and inexpensively. As a result, a lot of usable space of a solar power plant and Ma material can be saved. With the use of thermal receivers, no temperature losses would occur, since they are trapped in the protected environment against cooling wind. Mi † the stable framework and the common axis (62) can be stored on a few columns numerous modules and nachgeführ with few Anfriebseinheifen the supposed course of the sun † who the. This can significantly reduce the acquisition, operating and maintenance costs of such solar power plants.

The solar power plant according to the invention is not limited in its execution to the preferred embodiments stated above. Rather, a variety of design variations are possible, which make use of the solution shown even with fundamentally different type of execution.

List of Reference Numerals x, y, z Axes of the Cartesian Coordination System

F focal spot

10 parabolic sections

20 Focusing optics

1 1 parts of the parabolic sections Partial ring reflectors

12 parts of the parabolic sections (narrow)

13 parts of the parabolic sections

15 wire dishes †

15a Wire Utensils †

15b Wire Utensils †

17 strut

20a Outboard Partial Rings

20b Outboard Partial Rings

25 Central segment as partial ring reflectors

30 set of central segments Partial ring reflectors

31 Set of central segments Partial ring reflectors

35 set of (narrow) central segments

50 module

50a connection part 51 Medium structure

52 stub axles

52a Common middle connection axis

53 Upper support

54 Lower support

54a side member for thermal / phofovolfaic receivers

55 half ring with transverse grooves

56 glass / foil cover

59 high-flux solar cells

60 support beams

61 posts with axle bearings

61 a post with axle bearing

61 b slide bearing

61 c Initiation unit

62 axis

63 Half tooth axis worm wheel

63a snail

64 request unit

65 double module

66 double module

70 column

77 connection bar

80 pillar

81 slewing gear

82 supporting structure

82a worm drive with attachment

83 Half worm gear

83a snail

84 Debrief unit

85 single element of the solar raffia

100 solar raffia

150 solar traffics

500 beams of light

Claims

1 . Solar power plant, by means of which the light beams (500) of the sun with egg ner variety of rows arranged reflectors (1 1) are focused in nen mirrored active surfaces on a central Strahlungsemp catcher (F),

characterized in that

the focusing reflectors (1 1) are formed from parabolic ring parts whose outgoing beams are aligned substantially ent long a common axis.

2. Solar power plant according to claim 1,

characterized in that

the active surfaces of the adjacent reflectors (1 1) are mutually offset in height †.

3. Solar power plant according to claim 1 or 2,

characterized in that

the reflectors (1 1) of at least one of the reflectors (1 1) surrounding giving framework or housing structure (15, 15 a, 15 b, 16, 1 7) are enclosed spatially Lich.

4. Solar power plant according to claim 3,

characterized in that

the framework structure is made of wire (15a).

5. Solar power plant according to one of the preceding claims, characterized in that

the outer edges of the reflectors (1 1) at least partially run in alignment.

6. Solar power plant according to one of the preceding claims, characterized in that

it comprises a module (50) of a multifocal optics (30), which consists of a plurality of part-ring reflectors (1 1) and in a support factory (51, 52, 53, 54, 55) is included.

7. Solar power plant according to claim 6,

characterized in that

the structure of a middle (51), an upper (53) and egg nem lower structure (54) with supporting half wheels (55) is formed.

8. Solar power plant according to claim 7,

characterized in that

the supporting half-wheels (55) have transverse grooves on the underside.

9. Solar power plant according to claim 8,

characterized in that

the lower structure (54) comprises at least one longitudinal member (54a).

10. Solar power plant according to one of the preceding claims, characterized in that

it comprises a glass cover (56).

1 1. Solar power plant according to one of the preceding claims 6 to

10

characterized in that

the entire module (50) is designed as a closed environment.

12. Solar power plant according to one of the preceding claims 6 to characterized in that

a double module (65) is provided which is mounted on a support structure of curved beam (60) and support posts with axle bearings (61, 61 a).

13. Solar power plant according to one of the preceding claims 6 to

12

characterized in that

the two modules (50) are connected both laterally (50a) and through a common central connecting axle (52a) and are mounted on support posts (61, 61a), so that this arrangement (65) runs along the longitudinal axis of the axle journals (52). and the common seed central connection axis (52 a) can be pivoted horizontally.

14. Solar power plant according to one of the preceding claims 6 to

13

characterized in that

the movement by means of a grooved roller (61 b), wel che was interlocked with the grooves of the half wheel (55) and by the connected drive unit (61 c) is executed.

15. Solar power plant according to one of the preceding claims 6 to

14

characterized in that

the weight of the double module (65) is supported by means of half wheels (55) and underlying casters, with axle journals (52) and a central connecting shaft (52a) also receiving the weight of the double module (65).

16. Solar power plant according to one of the preceding claims 6 to 15,

characterized in that

below a transverse axis of rotation (62) is provided, by means of which the double module (65) mounted on a column and can be tilted ticalwinkel in Ver.

17. Solar power plant according to claim 1 6,

characterized in that

the pivoting movement is performed by a worm half-wheel (63), a worm (63a) and a drive unit (64).

18. Solar power plant according to one of the preceding claims 6 to

17

characterized in that

a solar thermal power plant (85) with the double module (65) on a support structure of curved beam (60) and support posts with axle bearings (61, 61 a), a rotation axis (62), a worm half-wheel (63), a screw (63 a) and a drive unit (64) and a column (70) is mounted, wherein the single element of the power plant (85) is biaxially tracked the course of the sun.

19. Solar power plant according to claim 19,

characterized in that

the horizontal tracking along the axis (x) on the axle sen (52, 52a) and the vertical tracking along the axis (y) on the axis (62) is performed.

20. Solar power plant according to one of the preceding claims, characterized in that

it is formed of individual elements (85) and double modules (65), which are connected to opposite bars (77) and by a common connecting axis (62).

21. Solar power plant according to claim 20,

characterized in that

it is tracked biaxially to the supposed course of the sun, wherein the horizontal tracking along the axis (x) on the axes (52, 52a) and the vertical tracking along the axis (y) on a common connecting axis (62) is executed.

22. Solar power plant according to one of the preceding claims, characterized in that

Double modules (66) are installed on a supporting structure (82) and the se arrangement on a column (80) and a slewing gear (81) ver builds, where it is tracked biaxially the course of the sun.

23. Solar power plant according to claim 22,

characterized in that

the vertical tracking along the axis (52) and the Nachfüh tion in the horizontal angle around the central axis of the column (80) is executed, the horizontal movement of the bogie including the supporting structure (82) and the double modules (66) by means of a worm wheel (83), a worm (83a) and a drive unit (84) is executed and the vertical tracking of the double modules (65) along the axes (52, 52a) takes place.

24. Solar power plant according to one of the preceding claims, characterized in that

it includes a glass / foil cover.