Hydrogen Combustion Chamber System, Method and Equipment

The combustion chamber system addresses the inefficiencies and pollutant emissions of traditional steam power plants by burning hydrogen to produce pollutant-free steam, enhancing energy efficiency and environmental sustainability.

JP7695413B2Active Publication Date: 2025-06-18SIEMENS ENERGY GLOBAL GMBH & CO KG
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Patent Information

Application Number
JP2023577857
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-07-01
Filing Date
2022-06-02
Publication Date
2025-06-18
Estimated Expiration
2042-06-02

AI Technical Summary

Technical Problem

Existing steam power plants typically rely on external combustion sources such as coal or gas turbines, resulting in pollutant emissions and inefficient use of energy.

Method used

A combustion chamber system that burns pure hydrogen with oxygen to produce steam as a combustion product, aiming to create a pollutant-free turbine operation and efficient steam generation.

Benefits of technology

The system achieves efficient hydrogen combustion, producing CO2-free and NOx-free steam products, which can be used in existing steam power plants or industrial applications, enhancing energy efficiency and reducing environmental impact.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The present invention relates to a combustion system in which hydrogen (H2) and oxygen (O2) are combusted in the presence of water (H2O) or water vapor (H2O).
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Description

Technical Field

[0001] The present invention is directed to a combustion chamber system (“steam booster”) for burning hydrogen for the purpose of heating a steam stream or increasing the steam state, as well as methods and installations therefor.

Background Art

[0002] Often, internal combustion in a steam circuit is not performed, and boilers in power plants are generally supplied via the exhaust gas of a gas turbine that is burned externally, for example, with coal, nuclear waste heat, or burned with gas or oil.

[0003] Such a steam power plant is described in Prior Patent Document 1.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] The problem of the present invention is to use hydrogen.

Means for Solving the Problems

[0006] This problem is solved by the combustion chamber system according to claim 1, the method according to claim 21, and the installation according to claim 32.

[0007] Other advantageous means are listed in the dependent claims, and these can be arbitrarily combined with each other to obtain further advantages.

[0008] A combustion chamber system by hydrogen combustion, a method and an installation therefor are proposed.

[0009] This advantage lies in burning pure hydrogen (H2), preferably together with oxygen (O2), as combustion products with steam.

[0010] The ultimate goal is a turbine that operates without pollutants and uses water or steam (CO2 - free, NO x - free) as combustion products, or is used to generate process steam.

[0011] The combustion chamber system can in particular also be integrated into existing steam power plants or steam gas turbine facilities (GuD).

[0012] Furthermore, the combustion chamber system can in particular be integrated into industrial applications involving steam circuits or steam extraction where CO2 - free combustion is required.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Mode for Carrying Out the Invention

[0014] FIG. 1 shows a combustion chamber system 1 according to the present invention.

[0015] The combustion chamber system 1 has a combustion cylinder 7 provided with a combustion chamber 30 as an important part.

[0016] The combustion chamber 30 has a base plate 4, and a flame tube 22 having the combustion chamber 30 and an outlet opening 32 at the end of the combustion chamber 30 is preferably directly continued to this base plate.

[0017] The flame tube 22 is preferably made of ceramic, particularly entirely of ceramic.

[0018] The length of the combustion chamber 30 or the length of the flame tube 22 is preferably at least 3 times, particularly 3 to 5 times, the hydraulic diameter of the combustion chamber 30.

[0019] The cross section of the combustion chamber 30 can be circular or elliptical when viewed in the combustion chamber direction 31.

[0020] Preferably, the base plate 4 is provided with a plurality of tubes (see also FIGS. 6 and 7) for supplying hydrogen, which is a fuel, and preferably oxygen and steam, particularly steam.

[0021] However, it is also possible to preferably use air instead of oxygen (O2).

[0022] These pipes are particularly composed of at least a first supply pipe 10 for oxygen (O2), a second supply pipe 13 for hydrogen (H2), and a third supply pipe 16 for water vapor (H2O). It is preferred that only these supply pipes 10, 13, and 16 exist. However, other fewer or more supply pipes are also possible.

[0023] Water vapor is preferably introduced into the combustion chamber system 1 through the central steam pipe 19. This steam pipe is divided into a third supply pipe 16 for the steam of the combustion chamber 30 and preferably a steam pipe 25 for the steam. The steam flows into the intermediate chamber 41 around the flame tube 22 and then preferably flows partially through the flame tube 22 into the combustion chamber 30 through the steam passage 50 or the steam outlet 150 (Figs. 10 and 15).

[0024] The intermediate chamber 41 is preferably directly bounded by the flame tube 22 and the pressure jacket 40.

[0025] The steam passage 50 and / or the steam outlet 150 are preferably distributed over the entire length of the flame tube 22 and preferably around the flame tube 22.

[0026] The flame tube 22 is preferably penetrated by steam over its entire length.

[0027] The steam pipe 25 can be particularly divided into two steam pipes 25', 25'' for the intermediate chamber 41.

[0028] The intermediate chamber 41 is particularly closed at its ends in the region of the outlet opening 32. In particular, the intermediate chamber 41 is a sealed space, that is, it is sealed particularly except for the supply pipe for steam, the steam passage 50, and the steam outlet 150. Thus, all of the steam flows completely from the supply pipe, preferably from the intermediate chamber 41, into the combustion chamber 30.

[0029] Furthermore, the combustion chamber system 1 preferably has a drain pipe 33, an overpressure or overpressure protection member 36, and a steam bypass pipe 39.

[0030] Similarly, it is preferable that the H2O sprayer 42 is present at the end of the combustion cylinder 7.

[0031] Furthermore, it is preferable to have a cleaning system 3 that can be flushed via a supply pipe, and in particular, nitrogen is used here.

[0032] Also, the flame tube 22 can be cooled by the steam 28 flowing around it during operation and / or, preferably, it can also be advantageously preheated by steam in the standby mode.

[0033] The combustion chamber system 1 of the present invention preferably has a combustion chamber axis 31 as shown in FIG. 2. Also, this axis is preferably the axis of symmetry of the flame tube 22 and / or the combustion chamber 30.

[0034] The combustion cylinder 7 can also be arranged horizontally together with the corresponding support (optionally the leaf spring 60 in FIG. 3).

[0035] The combustion chamber 30 preferably has the same cross-section over its length, preferably over its entire length, with respect to the combustion chamber axis 31.

[0036] The method of use and the options for variations of the combustion chamber system 1 of the present invention are generally known.

[0037] The combustion chamber system 1 preferably operates in a steam atmosphere of 1 bar to 140 bar, in particular 1 bar to 80 bar. The combustion chamber 30 is preferably operated in a steam atmosphere of at least 2 bar, in particular at least 6 bar.

[0038] A pressure loss setting of 100 mbar to 3000 mbar is desirable.

[0039] FIG. 2 shows a combustion cylinder 7 (and thus not visible) with an outer pressure jacket 40 around the flame tube 22, thereby forming an intermediate chamber 41 (FIG. 4).

[0040] According to FIG. 3, individual or multiple modules 46’, 46’’, ··· form the flame tube 22.

[0041] In this case, the modules 46’, 46’’, ··· are preferably made of ceramic.

[0042] However, a monolithic flame tube 22 made of ceramic or metal can also be used.

[0043] Advantageous is the use of oxide ceramics, especially aluminum oxide or aluminum oxide / spinel. Preferably, CMC is not used.

[0044] Similarly preferably, SiC is not used or silicon-based ceramics are not used.

[0045] The modules 46’, 46’’, ··· are preferably made of ceramic, but can also be formed of a metal tube of a Ni-based alloy such as Inconel, as is known from coating systems for gas turbine blades or metal thermal shield elements of gas turbines.

[0046] For the formation of the flame tube 22 of the combustion chamber system 1, the modules 46’, 46’’, ··· are arranged especially one above the other and especially coaxially with each other.

[0047] The flame tube 22 or the modules 46’, 46’’, ··· are especially formed with an annular cross-section, preferably circular or oval.

[0048] The individual modules 46’, 46’’, ··· (FIGS. 3, 4, 5, 10 and 11) or a plurality of preferably rods 43, especially threaded rods, which guide and hold together the flame tube 22, can be seen in FIGS. 2 and 3.

[0049] Similarly, other options for mechanical assembly or mechanical holding are also conceivable.

[0050] For example, there are five modules 46’, 46’’, ··· here, which are held together by the rod 43 and by the upper plate 44 and the base plate 4.

[0051] In this way, the intermediate chamber 41 can be formed around the flame tube 22 by the outer pressure jacket 40.

[0052] In particular, the modules 46’, 46’’, ··· and the base plate 4 are held to each other by a fastening element 47 consisting of a spring element and a screw around the rod 43 in contact with the upper plate 44.

[0053] Other fastening methods and elements are also possible.

[0054] Also shown in FIG. 3 is a leaf spring element 60 that supports the modules 46’, 46’’, ··· against the outer pressure jacket 40 (not shown).

[0055] The cross-section of FIG. 3 is shown in FIG. 4, which shows the flame tube 22 or the modules 46’, 46’’ with the combustion chamber 30 and the steam passage 50.

[0056] The steam passage 50 is a through-hole in the module 46 or the flame tube 22.

[0057] The steam passage 50 can be evenly distributed in the flame tube 22 or the modules 46’, 46’’, ···, or can be distributed particularly asymmetrically according to the heat load.

[0058] Along the length of the flame tube 22, the modules 46’’, 46’’, ··· or the monolithic flame tube 22 can be configured in various ways to meet the technical requirements and can have more or fewer steam passages 50 or steam outlets 150 (FIGS. 9 and 10).

[0059] The outlet opening 32 is preferably realized in the upper plate 44 which forms a contour to ensure the mutual centering of the modules 46’, 46’’, ··· or the flame tubes 22 and, in particular, to prevent subsequent components from overheating due to the radiant heat of the flame tubes 22 simultaneously.

[0060] Figure 13 shows a modification of the end of the combustion cylinder 7.

[0061] The outer pressure jacket 40 has a flange 68’, on which the cover plate 64 is placed and is screwed onto the flange 68’ of the outer pressure jacket 40 by its flange 68’’ by fastening elements 65, in particular screws and nuts.

[0062] The modules 46’, ··· or the flame tubes 22 are held together or pressed together by a spring element 67 which preferably exists between the cover plate 64 and the upper plate 44. The cover plate 64 has an outlet opening 69 which is located on the opposite side of or extends from the outlet opening 32.

[0063] The base plate 4 (or the flame tube base) (Figure 5) comprises a burner and an ignition unit (not shown) and functions as an alignment means for the modules 46’, 46’’, ··· or the flame tubes 22.

[0064] In the case of a modular design, the combustion chamber 30 is formed, in particular, by the stacking of the modules 46’, 46’’, ··· which are aligned, sealed and supported on the contact surfaces, in particular by the geometry of the grooves and springs.

[0065] Fastening means, in particular the structure of the tongue 101 and the groove 102, which are in particular hemispherical here, do not prevent the expansion of the base plate 4, and furthermore do not prevent the expansion of the base plate 4 even during heating and cooling. This avoids thermally induced stresses.

[0066] The structures of the tongue-shaped part 101 and the groove 102 can preferably also be formed between the modules 46’, 46’’, ···, and / or between the module 46’ and the base plate 4, and / or between the module 46 and the upper plate 44.

[0067] The combustion chamber 30 can have its length varied as required by stacking different numbers of modules 46’, 46’’.

[0068] In particular, modules 46’, 46’’, ··· with different lengths can be used.

[0069] Also, the combustion chamber 30 can have its diameter varied by changing the diameters of the modules 46’, 46’’, ···. Conical modules 46’, 46’’ are also possible.

[0070] It is preferred that the individual modules 46’, 46’’, ··· are guided in one tube or on rails or are prestressed by the rod 43.

[0071] The prestressing is carried out via the rod 43 and spring elements having a contact pressure suitable for ceramics. The ceramics are solely subject to compressive stress.

[0072] To ensure the optimal combustion of hydrogen (H2) and preferably oxygen (O2) and set the required or desired high temperature, each module 46’, 46’’, ··· or the flame tube 22 preferably includes a steam passage 50 defined such that the combustion mixing zone and the surrounding steam can be mixed step by step.

[0073] The steam passage 50 is circular and / or elliptical and / or rectangular, and its cross-section is constant or variable in their flow direction. In particular, to prevent the application of high-temperature flames to the wall of the flame tube 22 and / or to introduce turbulent flow into the combustion medium, it is arranged at a shallow angle, particularly between 80° and less than 90° in the flow direction.

[0074] Optionally, it can also be opened directly into the flame and directed to induce intense mixing.

[0075] In principle, the steam passage 50 can be distributed in various sizes over the length of the module 46 or over the length of the flame tube 22, or designed as a steam outlet 150 on the end face 133 of the module 46. A combination of the two principles is also possible.

[0076] This configuration can be particularly selected for various industrial applications, power generation applications, or applications for using hydrogen (H2) and preferably oxygen (O2) in a combustion process through which steam passes.

[0077] Examples of the arrangement of the steam passage 50 are shown in FIGS. 3, 4, and 5.

[0078] FIG. 4 also discloses that it is preferable that the combustion chamber 30 has the same cross-section in the lateral direction with respect to the combustion chamber axis 31 over the entire length.

[0079] According to FIG. 6, the base plate 4 has a plurality of functions, namely · Mechanical clamping of the flame tube 22 or the modules 46', 46'' especially by the principle of tongues and grooves, · Supply pipes 10, 13 for the combustion medium, · Supply pipe 16 for steam into the combustion chamber 30, · In a special variant, mixing hydrogen (H2) and preferably oxygen (O2) and injecting water or steam upstream of the burner 58 (FIG. 7), · And supply by the steam pipe 25 of the injected water or steam to the intermediate chamber 41 having the surrounding outer pressure jacket 40, and thereby the flame tube 22 is cooled and preferably no further cooling is required.

[0080] These functions can be ideally combined with each other by manufacturing the base plate 4, especially by SLM, preferably by 3D manufacturing.

[0081] The mixing of the fuel is preferably carried out for the first time in the combustion chamber 30 here.

[0082] FIG. 6 also shows that steam flows into the region between the flame tube 22 and the outer pressure jacket 40.

[0083] The steam preferably flows in the direction of the outlet opening 32.

[0084] The steam is also supplied to the burner 58 and / or around the burner 58.

[0085] FIG. 7 shows a modification of the base plate 4, in which internal premixing is carried out by the mixer 5 in the base plate 4, and the arrangement of the injection plane of the steam through-passage can be configured individually.

[0086] Such repetition of the through-passage is also easily possible.

[0087] FIG. 7 shows, in a cross-section of the base plate 4, the mixing (HHO) of hydrogen (H2) and oxygen (O2) in the base plate 4 of the combustion chamber system 1, and optionally the mixing of water or steam (H2O).

[0088] In this modification, hydrogen (H2) and oxygen (O2) are mixed in the mixer 55 and then supplied to the combustion chamber 30 for the first time.

[0089] FIG. 8 schematically shows how various media can be mixed with each other in a plate 110, preferably like the base plate 4.

[0090] In this case, the mixing is hydrogen 111, oxygen 112 and steam 113, which flow horizontally in the channel 114 respectively and are mixed there.

[0091] Then the mixture exits from the channel 114 in the direction of 115 and flows into the combustion chamber 30 shown in FIG. 6 or 7, for example.

[0092] Figure 9 shows the individual modules 46.

[0093] Preferably, a plurality of depressions 130 are provided starting from the upper end face 133 of the module 46.

[0094] The shape of the depression 130 can be diverse. For example, it can have a wedge-shaped contour that narrows within the plane of the base surface 134 of the depression 130.

[0095] The base surface 134 of the depression 130 is preferably flat, that is, the combustion chamber axis 31 (or parallel thereto) is perpendicular to the base surface 134 (Figs. 9 and 14), or as seen for the numerous steam outlets 150 in the cross-section of the module 46 in Figs. 10 and 15, the base surface 134 has a rising or falling profile. That is, the combustion chamber axis 31 (or parallel thereto) is not perpendicular to the base surface 134.

[0096] The geometric shape and arrangement of the steam outlets 150 may vary for the individual modules 46, or may be the same for each module 46’, 46’’, ···

[0097] The geometric shape and arrangement of the steam outlets 150 may particularly vary for the individual modules 46.

[0098] Figure 16 shows a plan view of the module 46’ according to Fig. 9 (or Fig. 14).

[0099] Each depression 130’, 130’’, 130’’’, ··· has a center line 131’, 131’’, 131’’’. The center lines 131’, ··· divide the base surface 134 in half.

[0100] The center lines 131’, 131’’, ··· of the depressions 130’, 130’’, ··· preferably coincide at the center of the module 46, that is, at the point of the combustion chamber axis 31.

[0101] Since the edge of the base surface 134 is in the radial direction, it is preferable here that the base surface 134 is wedge-shaped (truncated spherical).

[0102] Similarly, the depression 130 having the center line 131 can be configured such that the center line 131 of the base surface 134 does not penetrate the axis 31 of the combustion chamber, as shown by way of example in FIG. 17 for the depression 130. This allows for a tangential turbulent flow when a fluid, which is steam here, flows through the steam outlet.

[0103] Therefore, it is preferable here that the base surface 134 is not wedge-shaped.

[0104] Also, the base surface 134 can preferably be square or rectangular.

[0105] Also, the module 46 can be composed of a plurality of elements 48’, 48’’, ···

[0106] Such elements 48’, 48’’, ··· of the module 46 are shown in FIG. 14 by the dashed lines separating the lines 49’, ···

[0107] Each module 46 (FIG. 9) or the elements 48’, ··· (FIG. 14) for the module 46 according to FIGS. 9, 14, 16, 17 can have a steam passage 50 which is already a through-hole itself.

[0108] The steam outlet 150 having the same purpose as the steam passage 50 is manufactured only by stacking the individual modules 46’, ···

[0109] The meaning of the depression 130 becomes clear in FIG. 10. This is because the flame tube 22, i.e., the through-hole for the steam outlet 150, is generated from the depression 130 by the stacking of a plurality of modules 46’ to 46’’.

[0110] Also, these steam outlets 150 can preferably be configured by freely selecting their geometric shapes.

[0111] Such a steam outlet 150 can also be created entirely by stacking only two modules 46', 46'', ··· lying directly side by side when the end faces 133 each have a semi-circular recess and these are stacked on top of each other vertically to produce a circular cross-section.

[0112] Similarly, the steam outlet 150 and the steam passage 50 due to the recess 130 can also exist simultaneously (FIG. 15).

[0113] A burner 58 is arranged at the base of the combustion chamber 30 (FIG. 11).

[0114] This burner 58 is preferably a porous burner.

[0115] Regarding the ignition device 405, a design is possible in which the ignition device 405 is introduced laterally into the combustion chamber 30 (FIG. 11).

[0116] FIG. 11 schematically shows how the ignition device 405 and the burner 58 are arranged.

[0117] Via the steam passage 50 or in another embodiment, the ignition device 405 is introduced laterally with respect to the longitudinal direction above the burner 58 or is present there.

[0118] The ignition device 405 can preferably be introduced into the combustion chamber, whereby during operation, after the initial ignition, the ignition device 405 can be removed from a very corrosive area only once.

[0119] The ignition device 405 is at a corresponding distance 400 from the burner as seen in the longitudinal direction of the combustion chamber 30. Ignition takes place between the burner 58 and the ignition device 405.

[0120] After ignition, i.e., after the booster mode, the ignition device 405 can be removed from the combustion chamber 30.

[0121] FIG. 12 shows a plan view of the flange 700 provided with the base plate 4, and is provided with a steam inlet opening, a drain opening for the drain pipe 33 for removing condensate from the booster, and an opening for the burner 58.

[0122] Steam is supplied from the steam of the existing plant through the openings 703', 703'' to the combustion chamber system 1. These are preferably a plurality of openings that are particularly uniformly distributed in the circumferential direction.

[0123] The rod 43, which is also preferably evenly distributed in the circumferential direction, is arranged approximately between the openings 703', ···.

[0124] Therefore, the steam flows here into the intermediate chamber 41 between the outer pressure jacket 40 and the flame tube 22.

[0125] The drain opening of the drain pipe 33 can also be seen.

[0126] The burner 58 is arranged in the center, and the steam pipes 25', 25'', ··· are arranged around it.

[0127] The arrangement state of the module 46 is also shown.

[0128] A valve for spraying the steam pipe is preferably provided.

[0129] The combustion chamber system 1 is preferably connected in series with the steam pipe of the existing plant and connected in series thereto by a flange.

[0130] For the production of the ceramic segment, a three-part mold concept is provided in which the ceramic material is arranged around. The purpose here is to produce two support surfaces close to the final contour and avoid the finishing work as completely as possible.

Claims

1. Hydrogen (H 2 ) is burned in a combustion chamber (30) in the presence of water (H 2 O) and / or steam (28, H 2 O), and the steam (28) is circulated in an intermediate chamber (41) outside the combustion chamber (30), and the steam is refluxed over the entire length of the combustion chamber (30) in the intermediate chamber (41) of the flame tube (22), The combustion chamber (30) is formed by the flame tube (22), and the flame tube (22) is modularly configured and has a plurality of modules (46', 46'',...) formed in an annular or tubular shape, A fuel chamber system (1).

2. The intermediate chamber (41) is formed to be closed at the end of the combustion chamber (30) in the region of the outlet opening (32) of the flame tube (22), The combustion chamber system (1) according to claim 1.

3. The length of the combustion chamber (30) or the flame tube (22) is at least three times the hydraulic diameter of the combustion chamber (30) or the flame tube (22), The fuel chamber system according to claim 1 or 2.

4. The combustion chamber (30) has the same cross-sectional area in the transverse direction with respect to the combustion chamber axis (31) over its length, The combustion chamber system according to claim 1 or 2.

5. The combustion chamber (30) is formed by the flame tube (22), and the flame tube (22) has an annular or tubular cross-section, The combustion chamber system according to claim 1 or 2.

6. The modules (46', 46'',...) are arranged vertically with respect to each other, The combustion chamber system according to claim 1 or 2.

7. The modules (46', 46'',...) or the flame tube (22) are formed of ceramic, The combustion chamber system according to claim 1 or 2.

8. Each of said modules (46’, 46’’, ···) has means (101, 102) for fixing to each other by grooves (102) and tongues (101). The combustion chamber system according to claim 1 or 2.

9. Hydrogen (H 2 ) and / or steam can flow into said combustion chamber (30) via the base plate (4). The combustion chamber system according to claim 1 or 2.

10. Hydrogen (H 2 ) and / or steam is mixed at the base plate (4) and can flow into said combustion chamber (30) via the base plate (4). The fuel chamber system according to claim 1 or 2.

11. Said flame tube (22) or said module (46’, 46’’, ···) has a steam passage (50) and / or said module (46’, 46’’, ···) has a steam outlet (150) through which steam can flow into said combustion chamber (30). The fuel chamber system according to claim 1 or 2.

12. Said steam passage (50) is configured to prevent application of high-temperature flame to the wall of said flame tube (22). The combustion chamber system according to claim 11.

13. Said steam passage (50) and / or said steam outlet (150) extends over the entire length and / or entire circumference of said flame tube (22) or its module (46’, 46’’, ···). The combustion chamber system according to claim 11.

14. It has an outer pressure jacket (40) surrounding said combustion chamber (30) and thus forming said intermediate chamber (41). The combustion chamber system according to claim 1 or 2.

15. At the other end of the combustion chamber (30), an upper plate (44) is provided which abuts against the external pressure jacket (40) so as to form the intermediate chamber (41). The combustion chamber system according to claim 14.

16. A steam supply pipe (9) for guiding steam (28) into the combustion chamber (30) and the intermediate chamber (41) so that the steam can flow from the base plate in the direction of the outlet opening (32). The combustion chamber system according to claim 2.

17. Having an ignition device (405). The combustion chamber system according to claim 1 or 2.

18. A drain pipe (33) and / or An overpressure control valve or overpressure protection member (36) and / or A steam bypass (39) and / or H 2 O atomizer (42) and / or A cleaning system (3) capable of cleaning the supply pipe, having at least. The combustion chamber system according to claim 1 or 2.

19. Having a flange (700), the flange (700) having a steam inlet opening (703,...) and a drain opening for a drain pipe (33) for removing condensate. The combustion chamber system according to claim 1 or 2.

20. The combustion chamber system (1) according to claim 1 or 2 having a combustion chamber (30) is used. A method for generating steam.

21. Hydrogen (H 2 ) is water (H 2 O) or steam (28, H 2is combusted in the combustion chamber (30) in the presence of O), and / or only hydrogen (H 2 ) and water vapor are introduced into the combustion chamber (30), The method according to claim 20.

22. Outside the intermediate chamber (41), the combustion chamber (30) is circulated by steam (28) around it, and as a result, the flame tube (22) is cooled, The method according to claim 20.

23. Steam flows from the intermediate chamber (41) into the combustion chamber (30), The method according to claim 22.

24. Hydrogen (H 2 ) and water vapor flow into the combustion chamber (30) through the base plate (4), The method according to claim 20.

25. Hydrogen (H 2 ) and / or water vapor are mixed in the base plate (4) and flow into the combustion chamber (30) through the base plate (4), The method according to claim 20.

26. In order to keep warm or heat the flame tube (22) when it is not in operation, steam flows into the intermediate chamber (41), The method according to claim 20.

27. The combustion chamber (30) is operated in a steam atmosphere of 1 bar to 140 bar, The method according to claim 20.

28. The combustion chamber (30) is operated in a steam atmosphere of at least 2 bar, The method according to claim 20.

29. The combustion chamber (30) is operated with a pressure loss of 100 mbar to 3000 mbar, The method according to claim 20.

30. Steam flows around the burner (58) during combustion. The method according to claim 20. **Claim 31** A facility having the combustion chamber system (1) according to claim 1 or 2. **Claim 32** The facility according to claim 31, which is a steam turbine facility. **Claim 33** The facility according to claim 31, which is a gas-steam turbine facility. **Claim 34** The facility according to claim 31, which is a steam generation facility for process steam.

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