EP4176205A1 - Gasbrennervorrichtung und verfahren zum betrieb einer gasbrennervorrichtung - Google Patents
Gasbrennervorrichtung und verfahren zum betrieb einer gasbrennervorrichtungInfo
- Publication number
- EP4176205A1 EP4176205A1 EP21745894.2A EP21745894A EP4176205A1 EP 4176205 A1 EP4176205 A1 EP 4176205A1 EP 21745894 A EP21745894 A EP 21745894A EP 4176205 A1 EP4176205 A1 EP 4176205A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- burner
- burner device
- surface section
- gas burner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
- F23D2203/102—Flame diffusing means using perforated plates
- F23D2203/1023—Flame diffusing means using perforated plates with specific free passage areas
Definitions
- the invention relates to a gas burner device according to the preamble of patent claim 1 and a method for operating such a gas burner device according to the preamble of patent claim 10.
- a gas burner device of the type mentioned above is known from patent document WO 1993/18342 A1.
- This gas burner device consists of a flame body which has a burner surface section provided with holes for the combustion of a gas-air mixture, each hole having a hole area and the burner surface section having an area ratio of a total sum of the hole areas and the (or Porosity resulting in the surface of the burner surface portion.
- a “flame body” is to be understood as meaning any three-dimensional body that is suitable for arranging a burner surface section on it.
- burner surface section means here and in the following that a single such section or also several such sections can be provided on the flame body, whereby in the case of several sections, which can also be designed differently, in particular with regard to their porosity , these can also merge seamlessly.
- the gas used in this solution is, moreover, natural gas or methane gas, as those skilled in the art will readily recognize.
- a "hole” is here and below to be understood as a recess in the burner surface section, for example can be circular, but doesn't have to be. It can, for example, also be in the form of a slot or a cross slot (compare FIGS. 4 to 7 in the above-mentioned document).
- the object of the invention is to improve a gas burner device of the type mentioned at the outset.
- a gas burner device that can also be operated with hydrogen is to be created.
- the porosity of the burner surface section is more than 35% (compare page 1, line 27 of the aforementioned prior art), that the gas is designed to contain at least a proportion of hydrogen and that during operation of the Gas burner device resulting thermal surface load is more than 10,000 kW / m 2 .
- a burner surface section with a porosity of more than 35% and a gas containing at least a proportion of hydrogen is used and the gas burner device is operated with a thermal surface load of more than 10,000 kW/m 2 .
- the solution according to the invention is characterized in that, due to a comparatively high porosity of the burner surface section, a comparatively large amount of the gas-air mixture can flow through the holes.
- An upper limit of the porosity is preferably 60%. This means that on the one hand the burner surface cut is well cooled and thus a flashback can be effectively prevented.
- a comparatively high thermal surface load can be realized, which in turn enables a compact design of the gas burner device according to the invention.
- “Thermal surface load” is to be understood as meaning the heat output per surface area given off by the burner surface section.
- An upper limit of the surface loading is preferably 30,000 kW/m 2 .
- FIG. 1 is a perspective view of an embodiment of the gas burner device according to the invention.
- FIG. 2 shows a section of the burner surface section with circular holes in a plan view
- FIG. 3 shows a section through the burner surface section with a circular hole.
- the gas burner device shown in the figures which is particularly preferably designed as a fully premixing burner, initially consists, in a known manner, of a flame body 1 which has a burner surface section 2 provided with holes 2.1.
- a gas-air mixture is burned on the burner surface section 2 which, as stated, is arranged on a flame body 1 .
- each hole 2.1 has a hole area and the burner surface section 2 has a porosity resulting from an area ratio of a total sum of the hole areas and the area of the burner surface section 2.
- the Burner surface section 2 is preferably completely provided with regularly distributed holes 2.1.
- the gas burner device has a modulation capability of 1:5, ie it can work without problems in the range between 20 and 100% of its output.
- the porosity of the burner surface section 2 is more than 35%, that the gas is designed to contain at least a proportion of hydrogen and that a thermal surface load resulting from the operation of the gas burner device is more than 10,000 kW /m 2 is.
- a burner surface section 2 with a porosity of more than 35% and a gas containing at least a proportion of hydrogen is used and the gas burner device is operated with a thermal surface load of more than 10,000 kW/m 2 .
- the porosity it is particularly preferably provided that this is less than 60%, preferably between 40% and 50%.
- this is designed to contain at least 25%, preferably at least 50%, particularly preferably at least 75%, very particularly preferably more than 90% hydrogen.
- the portion that remains in each case preferably consists of natural gas or the like.
- at least some, preferably all, of the holes 2.1 are round, in particular circular. It is also preferably provided that the circular holes 2.1 have a diameter D of 0.4 to 0.8 mm.
- a ratio "t/D" of a distance between two hole centers t to the diameter D of a hole 2.1 is between 1.125 and 2.25, preferably between 1.125 and 1.6, particularly preferably between 1.2 and 1. 4, is.
- the edges of two holes 2.1 have a distance b (also called web width) from one another of 0.1 to 0.5 mm. More specifically, b denotes the smallest existing distance between the edges of two adjacent holes. It should be noted here that in the present invention, with a given hole geometry and arrangement, only pairs of values b and D are used, which, as described above, lead to a porosity of more than 35% in order to ensure effective operation of the gas burner device guarantee .
- the holes 2.1 on the burner surface section 2 are optionally (as shown in Figure 2) on imaginary corners of equilateral triangles in particular or (not shown separately) on imaginary corners of rectangles, in particular Qua - drats, are arranged (in the case of non-square rectangles, there are two corresponding b-values that are perpendicular to one another).
- the flame body 1 is in the form of a cylinder and the burner surface section 2 with its holes 2.1 is arranged on an end face of the cylinder.
- the burner surface section 2 does not have to fill or make up the entire surface of the flame body 1, but can, for example, as shown (relatively small in relation to the rest of the surface) Be formed annular surface.
- the burner surface section 2 is also preferably made for the burner surface section 2 to be formed from a metallic or ceramic material as desired.
- the material of the burner surface section 2 particularly preferably has a thermal conductivity of 1 to 25 W/(m*K).
- a metallic material is used for the burner surface section 2, it is preferably provided that this has a material thickness s, see FIG. 3, of 1 to 3 mm.
- a ceramic material is used for the burner surface section 2, it is preferably provided that this has a material thickness s of 8 to 12 mm, preferably 10 mm.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102020117692.9A DE102020117692B4 (de) | 2020-07-06 | 2020-07-06 | Gasbrennervorrichtung und Verfahren zum Betrieb einer Gasbrennervorrichtung |
| PCT/DE2021/100563 WO2022007996A1 (de) | 2020-07-06 | 2021-07-01 | Gasbrennervorrichtung und verfahren zum betrieb einer gasbrennervorrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4176205A1 true EP4176205A1 (de) | 2023-05-10 |
| EP4176205B1 EP4176205B1 (de) | 2026-01-21 |
Family
ID=77050734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21745894.2A Active EP4176205B1 (de) | 2020-07-06 | 2021-07-01 | Gasbrennervorrichtung und verfahren zum betrieb einer gasbrennervorrichtung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4176205B1 (de) |
| DE (1) | DE102020117692B4 (de) |
| WO (1) | WO2022007996A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4544228A1 (de) | 2022-06-22 | 2025-04-30 | BDR Thermea Group B.V. | Wasserstoffnachrüstsatzanordnung für eine gasverbrennungsvorrichtung |
| EP4296570A1 (de) * | 2022-06-22 | 2023-12-27 | BDR Thermea Group B.V. | Wasserstoff-nachrüstkitanordnung für einen gasbrenner |
| EP4296568A1 (de) * | 2022-06-22 | 2023-12-27 | BDR Thermea Group B.V. | Wasserstoff-nachrüstkitanordnung für einen gasbrenner |
| EP4296576A1 (de) * | 2022-06-22 | 2023-12-27 | BDR Thermea Group B.V. | Wasserstoff-nachrüstkitanordnung für einen gasbrenner |
| EP4296569A1 (de) * | 2022-06-22 | 2023-12-27 | BDR Thermea Group B.V. | Wasserstoff-nachrüstkitanordnung für einen gasbrenner |
| DE102022212226A1 (de) * | 2022-11-17 | 2024-05-23 | Robert Bosch Gesellschaft mit beschränkter Haftung | Brenner |
| DE102023104232A1 (de) * | 2023-02-21 | 2024-08-22 | Vaillant Gmbh | Brenneranordnung, Gasheizgerät und deren Verwendungen |
| DE102024113631A1 (de) * | 2024-05-15 | 2025-11-20 | Vaillant Gmbh | Brenneranordnung für ein Heizgerät und Heizgerät |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936003A (en) | 1973-12-03 | 1976-02-03 | Raytheon Company | Multiport high density burner |
| BR9306001A (pt) | 1992-03-03 | 1997-10-21 | Bekaert Sa Nv | Placa de fibra metálica porosa |
| FR2792394B1 (fr) | 1999-04-16 | 2001-07-27 | Gaz De France | Procede pour realiser une surface d'accrochage de flammes |
| US8424311B2 (en) * | 2009-02-27 | 2013-04-23 | General Electric Company | Premixed direct injection disk |
| US8875516B2 (en) * | 2011-02-04 | 2014-11-04 | General Electric Company | Turbine combustor configured for high-frequency dynamics mitigation and related method |
| US12379106B2 (en) | 2018-10-17 | 2025-08-05 | Beckett Thermal Solutions Ltd. | Method for forming a gas burner membrane |
-
2020
- 2020-07-06 DE DE102020117692.9A patent/DE102020117692B4/de active Active
-
2021
- 2021-07-01 EP EP21745894.2A patent/EP4176205B1/de active Active
- 2021-07-01 WO PCT/DE2021/100563 patent/WO2022007996A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP4176205B1 (de) | 2026-01-21 |
| DE102020117692A1 (de) | 2022-01-13 |
| WO2022007996A1 (de) | 2022-01-13 |
| DE102020117692B4 (de) | 2023-06-07 |
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