EP3593045A1 - Brenner mit verbesserter blende - Google Patents
Brenner mit verbesserter blendeInfo
- Publication number
- EP3593045A1 EP3593045A1 EP18710405.4A EP18710405A EP3593045A1 EP 3593045 A1 EP3593045 A1 EP 3593045A1 EP 18710405 A EP18710405 A EP 18710405A EP 3593045 A1 EP3593045 A1 EP 3593045A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- burner
- opening
- light opening
- air inlet
- 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
- 238000002485 combustion reaction Methods 0.000 claims abstract description 87
- 238000005286 illumination Methods 0.000 claims abstract description 31
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 13
- 238000001514 detection method Methods 0.000 description 11
- 239000010445 mica Substances 0.000 description 9
- 229910052618 mica group Inorganic materials 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000012780 transparent material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 229920006393 polyether sulfone Polymers 0.000 description 2
- 241000533950 Leucojum Species 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
- F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
-
- 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, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/725—Protection against flame failure by using flame detection devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M11/00—Safety arrangements
- F23M11/04—Means for supervising combustion, e.g. windows
- F23M11/045—Means for supervising combustion, e.g. windows by observing the flame
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/08—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using light-sensitive elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2209/00—Safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/00016—Preventing or reducing deposit build-up on burner parts, e.g. from carbon
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2229/00—Flame sensors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2231/00—Fail safe
- F23N2231/06—Fail safe for flame failures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2900/00—Special features of, or arrangements for controlling combustion
- F23N2900/05005—Mounting arrangements for sensing, detecting or measuring devices
Definitions
- the present invention relates to a burner, in particular for a vehicle heater, with a diaphragm which separates an inner combustion region from an outer region.
- vehicle heaters which serve in particular as auxiliary heaters and / or auxiliary heaters. It is also possible in most cases to retrofit vehicle heaters in motor vehicles. Such heaters find their use in other environments, such as boats, caravans and other mobile or stationary areas.
- vehicle heaters which find their use in other environments, such as boats, caravans and other mobile or stationary areas.
- the same fuel is often burned in the vehicle heater, which is also used in the combustion in the drive motor of the motor vehicle, ie in particular diesel fuel or gasoline.
- This fuel which is available in the vehicle, must be converted to the gaseous state for the purpose of combustion. For this one uses above all the principles of the atomization and / or the evaporation.
- atomizer burners this can be provided, for example, an atomizer nozzle, by means of which the fuel is first converted into droplet form, in order to then change over to the gaseous state due to the heat energy present in the vehicle heater.
- the oxidant required for the combustion is continuously supplied to the combustion region in the vehicle heater in the form of a combustion air flow.
- the burner of the vehicle heaters also a device for Flammerken- tion is assigned. It is a sensor of whatever kind that detects the presence of a flame in the burner and forwards a corresponding signal to a control unit of the vehicle heater.
- control and regulation parameters of the vehicle heater are set, for example, in the sense of a modification of the burner operation after successful ignition of the burner or an intentional or unintentional extinguishment of the flame, in which case in particular an interruption of the fuel supply takes place.
- An example of a nozzle burner known from the prior art is shown in Figure 13 in partial cutaway view. A detail of this nozzle burner is shown in FIG. 14.
- the burner 10 ' has an internal combustion region 16' delimited by a funnel-shaped wall 58.
- the funnel-shaped wall 58 is shown partially cut away in this illustration. This provides insight into the internal combustion region 16 '. It can be seen a nozzle 60, the fuel is supplied.
- the inner combustion region 16 ' is further delimited by a diaphragm 14', which is shown here cut off, wherein the diaphragm 14 'has a substantially circular disk-shaped form.
- the funnel-shaped wall 58 tapers from the aperture 14 'and on its side facing away from the aperture 14' has an opening 66 to permit the distribution of fuel and combustion air as well as the formation of a flame in the further combustion chamber.
- Fuel is supplied to the nozzle 60 via a line, not shown here, which passes from the nozzle 60 side facing away from the aperture 14 'through the aperture 14'.
- the combustion air required for the combustion is supplied to the inner combustion region 16 'via openings 68. These are formed in the edge 64 of the funnel-shaped wall 58 and configured U-shaped. By seating the edge 64 of the funnel-shaped wall 58 on the panel 14 ', the openings 68 are finally defined.
- the diaphragm 14 'itself has a light opening 28 ", for example 12 mm in diameter, which allows light to escape from the inner combustion region 16' into the outer region 18 'of the burner 10'
- This light reaches a photosensitive sensor, for example a photodiode, which is arranged in the outer region 18 'of the burner 10' and which serves for the flame detection, so that the combustion air reaches the inner combustion region 16 'in a defined manner through the openings 68 provided in the funnel-shaped wall 58 from the outer region 18',
- the light opening 28 " is covered with a mica disk 70, so that combustion air can not reach the inner combustion area 16 'through the light opening 28.
- the mica disk 70 is fastened with two rivets 72 on the side of the panel 14' facing away from the nozzle 60.
- FIG. 14 allows a view of the diaphragm 14 'from the nozzle 60 and the funnel-shaped wall 58 facing away from n side of the panel 14 ', here is the mottled with the rivets 72 at the aperture 14' mica 70 can be fully seen. It covers the light aperture 28 "completely. constantly.
- the nozzle burner 10 'constructed in this way operates as reliably as possible.
- a combustion air supply which is well adjustable over the arrangement and size of the openings 68 takes place, and the mica plate 70 prevents ingress of incorrect air through the large light opening 28 "of the panel 14 'from the outer area 18' into the At the same time, a sensor arranged in the outer region 18 'can reliably detect the presence of the flame in the inner combustion region 16'.
- the invention has the object to eliminate disadvantages of the known from the prior art burner.
- a maintenance-free burner is provided which ensures reliable flame detection, eliminates the occurrence of incorrect air flowing in the inner combustion region, and at the same time offers great tolerances in its assembly.
- the present invention describes a burner, in particular for a vehicle heater, having a diaphragm which separates an inner combustion region from an outer region, wherein a photosensitive sensor is arranged in the outer region, wherein in the aperture at least two separate air inlet openings are provided, wherein a the at least two air inlet openings are additionally designed as a light opening, which also permits a passage of light from the inner combustion area the photosensitive sensor arranged in the outer region, wherein the at least two air inlet openings are shaped such that the same amounts of combustion air flow into the inner combustion area per unit time, and wherein the aperture is transparent and / or the light aperture is one of the non-light aperture - formed air inlet openings has a different shape, so that an illumination surface defined by the light aperture is greater than a reference illumination area, which is defined by one of the at least two air inlet openings, which is not designed as a light opening.
- the light opening like the remaining air intake openings, serves to supply combustion air into the inner combustion area, the occurrence of incorrect air flows due to leaks in the area of the diaphragm can be reliably prevented.
- the orifice By means of the orifice, the partial combustion air flow fed per unit of time can be adjusted and equalized or directed via the pressure loss.
- the aperture can also be regarded as a flow straightener. The uniform supply is ensured by the shapes of the air inlet openings and the light opening, that is, by their respective the opening surfaces comprehensive edges.
- the at least one air inlet opening and the light opening have the same pressure loss in the sense of a throttle effect for the passing through the combustion air, which can be expressed for example approximately by an identical hydraulic diameter, if the respective outer shape of the at least one air inlet opening and the light opening not too far from a Diverge from circular shape. This ensures that flow through the respective openings the same amount of combustion air per unit time.
- two amounts of combustion air are considered to be essentially the same amount of combustion air or the same amount of combustion air, differing by a maximum of 20 percent, preferably by a maximum of 10 percent, more preferably by a maximum of 5 percent. The smaller of the two combustion air quantities can be regarded as defining the 100 percent.
- two quantities of combustion air can be regarded as substantially the same amount of combustion air or the same amount of combustion air, which differ from one another by a maximum of 15 percent, preferably by a maximum of 10 percent, particularly preferably by a maximum of 5 percent.
- the larger of the two combustion air volumes can be regarded as defining the 100 percent.
- the “deviation” refers to the amount of combustion air through the light opening in comparison with the respective amount of combustion air through an air inlet opening.
- the pressure drop at the light port may be determined experimentally and adjusted to the pressure drop across the air inlet ports.
- the reliability of the flame detection by the photosensitive sensor against mispositioning of the aperture can be improved which can occur in particular during assembly.
- the aperture is transparent, light can also pass beyond the edge of the light aperture from the inner combustion region to the photosensitive sensor. If the illumination surface defined by the light opening is greater than the reference illumination area that is defined by one of the at least two air inlet openings, the tolerance for incorrect positioning of the diaphragm is also increased.
- the reference illumination area the area lying in the plane of the photosensitive sensor and illuminated from a reference opening having the shape of one of the at least two air inlet openings, which is not formed as a light opening, out of the inner combustion area when the reference opening is on can be defined the position provided for the light opening would be brought. If the photosensitive sensor is within the reference illumination area, reliable flame detection is possible since it is illuminated.
- the illumination surface itself defined by the light aperture can be determined in an identical manner as the reference illumination surface.
- the illumination surface may be larger than the reference illumination surface due to the deviating shape of the light aperture of the remaining air inlet openings, or at least have a greater tolerance to misorientations of the diaphragm, in particular rotations.
- the illumination area is essentially unlimited. A distinction between the light opening and the air inlet opening is purely formal in the case of a transparent panel, due to the unlimited illumination area.
- the "light opening” is arranged so far away from the photosensitive sensor that it is only reached by light rays from the inner combustion region that have passed through the transparent material of the transparent panel.
- This case is also to be regarded explicitly as passage of light through the light opening from the inner combustion area to the light sensor arranged in the outer area.
- the light opening and the air inlet openings can for example be subsequently punched into the panel, cut, milled, drilled, lasered or introduced into the panel in another manufacturing method known to the person skilled in the art.
- the panel in the case of a transparent panel, it is also possible for the panel to comprise a light opening which, in the absence of an air-passable opening, does not simultaneously serve as an air inlet opening.
- the light aperture may be defined as the area of the transparent aperture through which the light passes through the transparent material of the aperture from the inner combustion region to the light sensor located in the outer region.
- the light opening in a transparent panel does not simultaneously serve as an air inlet opening, it can also be provided, for example, that the panel has at least one air inlet opening.
- the diaphragm consists of a metallic material or a heat-resistant plastic or a transparent mineral.
- a heat-resistant plastic suitable for the present application is associated, for example, with the class of polyethersulfones.
- polyethersulfones can have a high transparency coupled with stiffness and temperature resistance.
- a suitable transparent mineral may be, for example, mica.
- the at least two air inlet openings define a geometric pattern with a multiple rotation axis together with respect to their respective center points in the plane of the diaphragm. This arrangement allows a particularly uniform supply of combustion air to the inner combustion region through the aperture.
- the light opening consists of a plurality of separate individual openings.
- the reference illumination area defined by the light opening in the plane of the photosensitive sensor can be particularly large.
- Shapes for possible single openings or the light aperture in total are, for example, rosette shapes, star shapes, screened shapes, unstructured shapes, shapes of geometric elements such as circles, rectangles and triangles, and variations of absolutely symmetrical basic shapes. In any case, however, the predetermined pressure loss at the light opening must always be ensured with sufficient stability of the diaphragm.
- the individual openings, which together form the light opening form a grid pattern.
- a grid pattern provides in the region of the reference illumination surface defined by the light aperture, a substantially uniform brightness of the light emerging from the inner region through the light aperture is assured. This enables a uniform signal detection by the photosensitive sensor, which is advantageous for the flame detection, irrespective of any possible mispositioning of the diaphragm.
- the outer edge of the grid pattern may, for example, resemble a circular ring segment, so that the diaphragm has a particularly high tolerance to torsions during assembly. Furthermore, the outer edge of the grid pattern can be regarded as the edge of the light opening.
- the grid pattern may be regular, for example.
- the light opening comprises slit-like regions at least in sections.
- the illumination surface defined by the light aperture can be increased in relation to a reference illumination surface.
- offset-type slot-like regions incorrect positioning of the diaphragm can be compensated for particularly easily with regard to a rotation of the diaphragm during assembly.
- the diaphragm is at least partially thermally insulated from other components of the burner.
- thermal insulation of the diaphragm relative to other components of the burner the temperature loading of the diaphragm can be reduced so that more temperature-sensitive materials, which are usually less expensive or easier to process, can be used to produce the diaphragm.
- the thermal insulation of the diaphragm can be provided, for example, in the form of seals on the outer edge of the diaphragm with respect to further components of the burner which delimit the inner combustion chamber.
- FIG. 1 shows a diaphragm with a first light opening
- FIG. 2 shows a panel with a reference opening
- FIG. 3 shows a diaphragm with a second light opening
- FIG. 4 shows a diaphragm with a third light opening
- FIG. 5 shows a diaphragm with a fourth light opening
- FIG. 6 shows a diaphragm with a fifth light opening
- FIG. 7 shows a diaphragm with a sixth light opening
- FIG. 8 shows a diaphragm with a seventh light aperture
- FIG. 9 shows a diaphragm with an eighth light opening
- FIG. 10 shows a vehicle heater with burner in a schematically simplified manner
- Figure 1 1 a vehicle heater with burner in a schematically simplified manner with offset aperture
- FIG. 12 shows a vehicle heater with burner in a schematically simplified manner with a reference opening
- Figure 13 shows a burner of the prior art in partially cutaway
- Figure 14 is a detail of the known from the prior art burner.
- FIG. 1 shows a diaphragm with a first light opening.
- the illustrated aperture 14 is substantially circular. Visible are a number of Lucaseinlasso réelleen 22, 24, 26 with their respective centers 22 ', 24' and 26 '. Furthermore, further air inlet openings not marked with reference numerals can be seen.
- a light opening 28 In the lower region of the diaphragm 14 is still a light opening 28 as a specially shaped opening in the aperture 14 recognizable.
- the light opening 28 is not closed and also serves for the passage of combustion air through the diaphragm 14.
- the light opening 28 has a center 28 'on.
- All center points 22 ', 24', 26 ', 28' of the air inlet openings 22, 24, 26 and the other formed as a light opening 28 air inlet opening are arranged concentrically around a center of the aperture 14, which represents a La regarding axis of rotation 38.
- a center of the aperture 14 which represents a La regarding axis of rotation 38.
- the centers of all air inlet openings and the air inlet opening designed as a light opening can always be brought to coincide, so that in the present case there is an eight-fold axis of rotation 38.
- This high symmetry allows a very uniform passage of combustion air through the aperture 14.
- the illustrated in Figure 1 outer shape of the light aperture 28 is approximately equal to a six-armed 'snowflake'. The passage area released by the light opening 28 shown in FIG.
- the pressure drop at the light opening 28 corresponds to the respective pressure drop at the individual light openings 22, 24, 26, which are not formed as a light opening. In this way, when operating a burner equipped with the orifice 14, the same amount of combustion air will pass through each of the air inlet openings 22, 24 26 and the light aperture 28 through the aperture 14 per unit time.
- the recognizable in Figure 1 ramifications of the light opening 28 enlarge the illuminated by the light opening 28 "area, that is the illumination area.
- the light opening 28, including the constrictions contouring the light opening 28 is significantly larger than the remaining air inlet openings 22, 24, 26, which are not formed as a light opening.
- the light aperture 28 is similar to a star. Nevertheless, the same amount of combustion air per unit of time passes through the aperture through the aperture 28, as through the remaining individual apertures.
- FIG. 2 shows a panel with a reference opening.
- a reference opening 40 is shown in FIG. 2 at the same position of the panel 14.
- the reference opening 40 has the same external shape and the same dimensions as the other air inlet openings 22, 24, 26.
- a reference illumination area is defined will be explained in more detail below in connection with the figures 10 to 12.
- the light aperture 28 may preferably be designed such that its outer shape identical to the outer shapes of the remaining air inlet openings 22, 24, 26 is. This has the advantage that the panel 14 is overall very easy to manufacture.
- the resulting illumination surface is substantially unrestricted due to the transparency of the aperture 14, regardless of the shape of the light aperture 28, since light can pass through the entire aperture 14.
- FIG. 3 shows a diaphragm with a second light opening 28.
- the light opening 28 shown in FIG. 3 consists of a multiplicity of individual openings which are each separated from the adjacent openings by thin webs. The plurality of individual openings and the thin webs separating these individual openings are together significantly larger than the remaining air inlet openings, which are not formed as a light opening 28.
- the light opening 28 shown in FIG. 3 is composed as a combination of a plurality of geometric shapes. Nevertheless, the same amount of combustion air per unit time passes through the aperture 28 through the aperture 28, as through the remaining individual air inlet apertures.
- FIG. 4 shows a diaphragm with a third light opening.
- the light opening 28 shown in FIG. 4 like the light opening 28 shown in FIG. 3, consists of a multiplicity of individual openings separated by thin webs, which as a whole are pronounced of the shape of a flower or a rosette of "cake pieces".
- the multiplicity of the individual openings and the thin webs separating these from one another are significantly larger in terms of their area than the remaining air inlet openings, which are not designed as a light opening. Nevertheless, the same amount of combustion air per unit time passes through the aperture through the aperture 28, as through the remaining individual air inlet apertures.
- FIG. 5 shows a further diaphragm with a fourth light opening.
- the light opening 28 illustrated in FIG. 5 is designed as a regular grid with square grid openings which, in their entirety, that is to say the grid openings and the individual bars separating the grid openings, have a significantly larger area than the remaining air inlet openings which do not Light opening 28 are formed. Nevertheless, the same amount of combustion air per unit time passes through the aperture 28 through the aperture 28, as through the remaining individual air inlet apertures.
- any other basic geometric elements for the grating providing the light opening are also conceivable. This includes lattices of unstructured shapes made up of a multitude of mutually different polygonal shapes Grid openings and individual, the polygonal grid openings can be separated from each other webs.
- FIG. 6 shows a further diaphragm with a fifth light opening.
- the light opening 28 shown in Figure 6 is constructed as a regular arrangement of circular individual openings, which are each arranged on circular lines around a central opening. Again, the individual openings together with the individual openings separating webs are significantly larger than the other air inlet openings, which are not formed as a light opening. Nevertheless, the same amount of combustion air per unit time passes through the aperture 28 through the aperture 28, as through the remaining individual air inlet apertures.
- FIG. 7 shows a further diaphragm with a sixth light opening.
- the light opening 28 shown in Figure 7 comprises a central opening and, separated by thin webs thereof, a plurality of surrounding smaller openings.
- the smaller openings are arranged substantially along a concentric circular circumference line, on which the centers of the remaining air inlet openings and the light opening 28 itself lie.
- the outer shape of the plurality of individual openings and these thin webs separating them is correspondingly oval.
- the light opening 28 shown in Figure 7 is particularly suitable for compensating a rotation of the aperture 14 about the rotation axis 38.
- the same amount of combustion air per unit time passes through the aperture, as through the other individual air intake openings.
- FIG. 8 shows a further diaphragm with a seventh light aperture.
- the light opening 28 shown in FIG. 8 consists of a central opening, which is framed laterally by crescent-like side openings. In this way, an oval-like, divided by two webs overall shape of the light opening 28, which tolerates particularly well twists of the aperture during their installation. , Even with the light opening 28 illustrated in FIG. 8, the same amount of combustion air per unit of time passes through the panel as through the remaining individual air inlet openings.
- FIG. 9 shows a further diaphragm with an eighth light opening.
- the light opening shown in Figure 9 consists of a plurality of parallel slits arranged parallel to each other, which are separated from each other by thin webs.
- the orientation of the slot can essentially be chosen freely.
- Opening 28 passes the same amount of combustion air per unit time through the orifice as through the remaining individual air inlets.
- FIG. 10 shows a vehicle heater with burner in a schematically simplified manner. Recognizable is the vehicle heater 12 with the burner 10.
- the burner 10 comprises an inner combustion region 16 and an outer region 18, wherein the inner combustion region 16 is separated from the outer region 18 by a diaphragm 14.
- Fuel is supplied to the internal combustion region 16 via a fuel supply 42, which may be designed, for example, as an atomizer nozzle with a connected fuel line.
- Combustion air is supplied from the outer region 18 into the inner combustion region 16 through the orifice 14, the combustion air flowing through air inlet openings 22 and a light opening 28. In a simplified manner, only one air inlet opening 22 is shown.
- An insulating seal 56 which may be arranged in particular on one edge of the panel 14, can thermally insulate the panel 14 of other components of the burner 10, in particular components which delimit the internal combustion area 16. In addition to the thermal insulation, the insulating seal 56 can also prevent leakage at the edge of the diaphragm, so that no faulty air can pass from the outer region 18 into the inner combustion region 16 at the edge of the diaphragm 14.
- a flame 44 is usually present during the operation of the vehicle heater 12. The flame 44 emits light which emerges through the light opening 28 from the inner combustion area 16 into the outer area 18. The outer edge of the light opening 28 limits the falling out of the inner combustion region 16 bundle of light rays, wherein edge beams 48, 50 are indicated.
- a deflecting device 46 which may be embodied, for example, as a reflecting surface, and which diverts the bundle of rays emerging from the inner combustion region 16 through the light opening 28, deflects in the direction of a photosensitive sensor 20, which is arranged in a plane 52 is. As long as the photosensitive sensor 20 is in the area between the marginal rays 48, 50, a reliable detection of the flame 44 in the inner combustion region 16 by the photosensitive sensor 20 is ensured.
- the position and size of the light aperture 28 in the beam path can vary slightly, so that the illuminated by the light rays area of the edge beams 48th , 50 is limited, may differ in position from device to device.
- the marginal rays 48, 50 can illuminate an area which is completely adjacent to the light-sensitive area.
- sensitive sensor 20 is located, or only partially illuminated, so that a reliable detection of the flame 44 is no longer guaranteed.
- FIG. 1 1 shows a vehicle heater with burner in a schematically simplified manner with offset aperture. In the case of the vehicle heater 12 shown in FIG. 11, the light opening 28 is displaced by an offset 54 in relation to the situation illustrated in FIG.
- FIG. 12 shows a vehicle heater with burner in a simplified manner schematically with reference opening in the aperture.
- a reference opening 40 is provided in FIG. 12 instead of the light opening 28 provided in FIGS. 10 and 11 in the panel 14.
- the reference opening 40 may in particular have the same dimensions as the remaining air inlet openings 22 in the aperture 14.
- the center points of the reference opening 40 and the light opening 28 provided in FIG. 10 may coincide.
- the marginal rays 48, 50 given by the reference opening 40 delimit the reference illumination area on the plane 52, which is indicated by the smaller double arrow below the plane 52.
- the underlying larger double arrow corresponds to the double arrow shown in FIG. Ppelfeil, which is the illumination surface associated, which is defined by the opposite the reference opening 40 further light opening 28.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
- Gas Burners (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL18710405T PL3593045T3 (pl) | 2017-03-07 | 2018-03-06 | Palnik z ulepszoną przysłoną |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017104769.7A DE102017104769B4 (de) | 2017-03-07 | 2017-03-07 | Brenner mit verbesserter Blende |
PCT/EP2018/055481 WO2018162486A1 (de) | 2017-03-07 | 2018-03-06 | Brenner mit verbesserter blende |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3593045A1 true EP3593045A1 (de) | 2020-01-15 |
EP3593045B1 EP3593045B1 (de) | 2021-10-13 |
Family
ID=61622559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18710405.4A Active EP3593045B1 (de) | 2017-03-07 | 2018-03-06 | Brenner mit verbesserter blende |
Country Status (7)
Country | Link |
---|---|
US (1) | US11365881B2 (de) |
EP (1) | EP3593045B1 (de) |
CN (1) | CN110382962B (de) |
DE (1) | DE102017104769B4 (de) |
PL (1) | PL3593045T3 (de) |
RU (1) | RU2721744C1 (de) |
WO (1) | WO2018162486A1 (de) |
Families Citing this family (1)
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CN113544559A (zh) * | 2019-04-15 | 2021-10-22 | 正点技术有限公司 | 光学火焰传感器 |
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GB491714A (en) | 1937-03-01 | 1938-09-01 | G C Pillinger & Co Ltd | Improvements relating to automatic control systems for heating burners |
US2304641A (en) * | 1940-05-04 | 1942-12-08 | Brown Instr Co | Control apparatus |
US3055416A (en) * | 1959-12-29 | 1962-09-25 | Babcock & Wilcox Co | Flame detector arrangements |
US3185846A (en) * | 1961-05-16 | 1965-05-25 | Bailey Meter Co | Ultra-violet radiation flame monitor |
DE1221755B (de) * | 1963-12-19 | 1966-07-28 | Appbau Eugen Schrag Kommanditg | Steuer- und Sicherheitsvorrichtung fuer Gas- oder OElfeuerung |
GB1214521A (en) * | 1968-02-22 | 1970-12-02 | Memco Electronics Ltd | Improvements relating to multi-burner furnaces |
JPS58190617A (ja) | 1982-04-28 | 1983-11-07 | Iseki & Co Ltd | 燃焼装置における火炎の検出装置 |
JPS60501913A (ja) * | 1983-07-25 | 1985-11-07 | クオンタム グル−プ インコ−ポレイテツド | 光電制御装置 |
DE3501719A1 (de) | 1984-07-28 | 1986-01-30 | Webasto-Werk W. Baier GmbH & Co, 8035 Gauting | Brennstoffbetriebenes heizgeraet |
US5120975A (en) * | 1990-03-23 | 1992-06-09 | General Electric Company | Gas turbine flame detection system with reflected flame radiation attenuator |
DE4430196C1 (de) | 1994-08-25 | 1996-01-18 | Eberspaecher J | Fahrzeugheizgerät mit Flammenwächter |
DE19903767C2 (de) | 1999-01-30 | 2001-05-17 | Webasto Thermosysteme Gmbh | Fahrzeug-Heizgerät mit Gasblasendetektor |
EP1130318A1 (de) * | 2000-03-03 | 2001-09-05 | IABER S.p.A. | Angeklebte Luftbehälterglasscheibe |
DE10110560B4 (de) | 2001-03-05 | 2009-11-26 | Webasto Ag | Fahrzeug-Heizgerät |
EP1411573A2 (de) | 2002-10-16 | 2004-04-21 | Matsushita Electric Industrial Co., Ltd. | Brenner, Wasserstoffgenerator und Brennstoffzellenstromerzeugungssystem |
US7775052B2 (en) | 2004-05-07 | 2010-08-17 | Delavan Inc | Active combustion control system for gas turbine engines |
US8203714B2 (en) * | 2007-03-13 | 2012-06-19 | Thomas Merklein | Method for the camera-assisted detection of the radiation intensity of a gaseous chemical reaction product and uses of said method and corresponding device |
JP2009250489A (ja) | 2008-04-03 | 2009-10-29 | Toshiharu Fukai | バーナーの火炎検知手段 |
DE102011077437A1 (de) | 2011-06-10 | 2012-12-13 | Webasto Ag | Fahrzeugheizgerät und Verfahren zum Betreiben eines Fahrzeugheizgerätes |
JP2014105906A (ja) | 2012-11-26 | 2014-06-09 | Miura Co Ltd | 火炎検出装置 |
JP2015086968A (ja) * | 2013-10-31 | 2015-05-07 | 三菱日立パワーシステムズ株式会社 | 多段減圧装置およびボイラ |
EP3029647B1 (de) * | 2014-12-04 | 2017-05-31 | Siemens Schweiz AG | Offener Streulichtrauchmelder, insbesondere mit einer Sidelooker-LED |
CN205079259U (zh) | 2015-10-22 | 2016-03-09 | 山东多乐采暖设备有限责任公司 | 一种带挡板的观火装置 |
-
2017
- 2017-03-07 DE DE102017104769.7A patent/DE102017104769B4/de not_active Expired - Fee Related
-
2018
- 2018-03-06 EP EP18710405.4A patent/EP3593045B1/de active Active
- 2018-03-06 WO PCT/EP2018/055481 patent/WO2018162486A1/de active Application Filing
- 2018-03-06 PL PL18710405T patent/PL3593045T3/pl unknown
- 2018-03-06 CN CN201880016370.0A patent/CN110382962B/zh active Active
- 2018-03-06 US US16/489,230 patent/US11365881B2/en active Active
- 2018-03-06 RU RU2019127918A patent/RU2721744C1/ru active
Also Published As
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PL3593045T3 (pl) | 2022-01-31 |
RU2721744C1 (ru) | 2020-05-21 |
US20200011527A1 (en) | 2020-01-09 |
EP3593045B1 (de) | 2021-10-13 |
CN110382962A (zh) | 2019-10-25 |
DE102017104769B4 (de) | 2019-12-05 |
US11365881B2 (en) | 2022-06-21 |
DE102017104769A1 (de) | 2018-09-13 |
WO2018162486A1 (de) | 2018-09-13 |
CN110382962B (zh) | 2021-01-12 |
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