CN207716439U - A kind of catalytic flameless burner - Google Patents
A kind of catalytic flameless burner Download PDFInfo
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- CN207716439U CN207716439U CN201721691438.4U CN201721691438U CN207716439U CN 207716439 U CN207716439 U CN 207716439U CN 201721691438 U CN201721691438 U CN 201721691438U CN 207716439 U CN207716439 U CN 207716439U
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Abstract
The utility model discloses a kind of catalytic flameless burners, belong to burner arts, the catalytic flameless burner includes fuel and helps fuel gas inlet, gas distributor, inner casing body catalyst, shell body catalyst and igniter, the inner casing body catalyst include shell and the multi-porous monolithic catalyst on shell, the shell body catalyst includes shell and the multi-porous monolithic catalyst on shell, and the igniter is between interior shell catalyst and shell catalysts.The utility model uses inside and outside double-layer porous integral catalyzer, after fuel and combustion-supporting gas mixed firing, smouldering state can be quickly converted on multi-porous monolithic catalyst, compared flame combustion, can be significantly reduced the generation of poisonous and hazardous carbon monoxide and nitrogen oxides.
Description
Technical field
The utility model is related to a kind of fuel burner, especially a kind of catalytic flameless burner.
Background technology
Beijing is in the execution from 1 day April in 2017《Beijing's emission standard of air pollutants for boilers》 (DB11/139-
2015), it is desirable that Beijing area is newly-built and to be less than 30 milligrams/cubic metre and 80 millis with gas fired-boiler discharged nitrous oxides concentration
Gram/cubic metre.To meet standard requirement, currently employed a variety of low nitrogen flame burning technologies.Low nitrogen flame burning technology is logical
Crossing reduces flame temperature to reduce the generation of thermal NO x to a certain extent, or will have been given birth to by forming high-temperature reductibility atmosphere
It is reduced to N2 at NOx, is finally reached the purpose of low NOx drainage.Existing low nitrogen flame burning technology includes mainly that air classification fires
Burning technology, fuel-staged combustion technology, flue gas recirculating technique, lean premixed combustion technology and full premix surface combustion technology
Deng.Researched of Air Staging Combustion Burning Pulverized Coal reduces burning velocity and temperature first with the combustion with meagre oxygen of fuel-rich region, then utilizes the richness of burning-out zone
Oxygen burning burnt-up fuel avoids flame temperature excessively high simultaneously, to reduce the generation of thermal NO x；Fuel-staged combustion is to utilize
The generated NOx in main burning area is reduced to N2 to realize by the burn at high temperature reproducibility hydrocarbon group of formation of secondary fuel
NOx abatement；Flue gas recirculation is that partial fume is back to plenum system to absorb heat and reduce gaseous mixture oxygen concentration, to reduce combustion
It burns speed and temperature inhibits NOx to generate, but circulating flue gas, while increasing heat loss due to exhaust gas, acid flue gas condensing water is easy
Corrode draught fan impeller and burner internal element；Lean fuel premixed combustion refers to that a small amount of combustion gas and large quantity of air are complete in molecular level
After mixing again homogenous combustion with reduce flame temperature reduce NOx generate, while under excess oxygen uniformly and adequately burning makes HC
Discharge with CO is also significantly reduced, but excessive air had not only increased heat loss due to exhaust gas but also increased wind turbine load, heat
Efficiency low energy consumption is big；The burning of full premix surface is that burning is made to be flowed porous on the basis of combustion gas is thoroughly mixed with air molecule
The surface of the Web materials such as plate carries out, and burning velocity is fast, and the short temperature of the length of flame is low, can be greatly lowered thermal NO x's
It generates, but the easy blocking such as weaving metallic fibers object used, so that combustor performance is substantially reduced.The combustion gas of different capacity at present
Boiler generally use one of the above or a variety of combustion technologies achieve the purpose that reduce NOx emission, and the defect of above-mentioned technology makes
Current combustion device prevailing price is expensive and complicated for operation.
Relative to flame combustion, flameless combustion can allow burning more uniformly and stably to carry out, no localized hyperthermia, therefore nitrogen
Oxide production quantity is extremely low.Flameless combustion includes high temperature air flameless combustion and catalytic flameless burning.High-temperature air burning utilizes
High temperature air heating combustion gas makes it be more than autoignition temperature, and then flameless combustion is made to occur in a relatively wide region, avoids
Localized hyperthermia simultaneously effectively reduces NOx emission.Catalytic flameless burning refers to then that combustion gas and oxidizer molecule are carried out in catalyst surface
Catalytic oxidation, be usually used in low-concentration fuel less than igniting concentration under catalytic purification process, gas fired-boiler height
The catalytic flameless burner of concentration fuel is less.Chinese patent application 201610231516.6 and ZL201620323227.4 are public
A kind of catalytic flameless burner of extremely low pollutant emission is opened, characterized by recoverable structure, structure is complex.
Utility model content
The utility model provides a kind of catalytic flameless burner, simple in structure, it can be achieved that various gas or vaporization fuel exist
Kilowatt and MW class power under catalytic flameless burn, high combustion efficiency, Pollutant emission concentration is low.
For this purpose, the utility model uses following technical scheme：
A kind of catalytic flameless burner, including two and three or more nested be successively from inside to outside rolled by shell
Airtight chamber, wraps up between all or part of shell of adjacent airtight chamber that there are gaps, and there are the shells of gap by porous
Integral catalyzer is constituted or is made of along surface of shell successively airtight connection with sealing material multi-porous monolithic catalyst；In
Igniter is equipped at least one chamber other than inner most chamber；In being equipped with gas distributor in inner most chamber, help
Gas source and fuels sources are connected through gas distributor with inner most chamber by pipeline.
Above-mentioned catalytic flameless burner, includes the chamber of two and three or more one end opens, and open end is to phase Tongfang
To two and three be arranged so that upper cavity is nested successively from inside to outside, there are gaps between neighboring chambers；And inner most chamber
Body open end is equipped with sealing plate, passes through sealing plate sealed opening end；Sealing is equipped between neighboring chambers open end from inside to outside
Plate seals the cavity between neighboring chambers by sealing plate；Cavity is made of multi-porous monolithic catalyst or is urged by multi-porous monolithic
Agent is constituted with sealing material along housing surface successively airtight connection；Sealing plate in inner most cavity hatch end is equipped with extremely
Few one is helped fuel gas inlet and at least one fuel gas inlet or the common inlet equipped at least one combustion-supporting gas and fuel, in most
The inside of internal cavity is equipped with the air distribution plate with through-hole close to open end, and the edge and cavity inner wall face of air distribution plate are closed
Connection, in forming a gas distributor in cavity, at least one internal chamber for being formed between neighboring chambers from inside to outside
In be equipped with igniter.
Above-mentioned catalytic flameless burner, sealing material are the one or two or more kinds in metal or refractory material, fire proofed wood
Material is the one or two or more kinds in ceramics, refractory brick.
Above-mentioned catalytic flameless burner, the quantity of the closed chamber be two or three it is above and between each other there are
Gap, the geometry of airtight chamber can be one or two or more kinds of Arbitrary 3 D geometry in sphere, spheroid, cylinder etc.
Shape, and the geometry of each layer chamber can be identical or different, axial cross section can be circle, triangle, rectangle, polygon
One or two or more kinds of random two-dimensional geometries in shape etc. can pass through the supports knot such as holder or two end-stopping plates between shell
Structure is affixed.
Above-mentioned catalytic flameless burner, gas distributor by 1 or more the sheet being fixed on inner most cavity inner wall,
One or two or more kinds of in rodlike, cellular or other shapes devices constitute or by above-mentioned device one kind or two kinds
The inner wall with inner most cavity collectively forms above, and there are gaps between the device inside or device, make by helping fuel gas inlet
With fuel gas inlet enter gas can be on inner housing after gas distributor multi-porous monolithic catalyst flowing.
Above-mentioned catalytic flameless burner, the quantity of multi-porous monolithic catalyst is one piece or two pieces or more on shell, porous
The surfaces externally and internally of integral catalyzer can be plane or nonplanar random geometry, and sealing material is affixed has been formed
Whole shell, on shell projected area of the multi-porous monolithic catalyst on one side surface of shell and shell this side surface area it
Than for 0.1-1, the thickness of multi-porous monolithic catalyst is 1-1000mm on shell.
Above-mentioned catalytic flameless burner, igniter can be by the fuel of the multi-porous monolithic catalyst on inner most cavity
With help fuel gas mixture to ignite, the igniter can be ignition electrode and/or electric heating wire.
The utility model has the advantages that：
A kind of catalytic flameless burner of the utility model, it is porous whole by being arranged simultaneously on inner housing and outer housing
Body formula catalyst, flame combustion fast transition is burnt for catalytic flameless after igniting may be implemented, to avoid partial combustion temperature
It is excessively high, the generation of NOx, while catalytic flameless high combustion efficiency are reduced, imperfect combustion product CO and HC production quantity is small, and burn tail
Gas can meet direct emission requirement.
Description of the drawings
Fig. 1 is the catalytic flameless burner diagrammatic cross-section according to the utility model embodiment.
Fig. 2 is the catalytic flameless burner schematic cross-section according to the utility model embodiment.
Reference numeral：
Help fuel gas inlet (1), fuel gas inlet (2), gas distributor (3), interior barrel shell (4), inner cylinder catalyst (5), outside
Barrel shell (6), outer barrel catalyst (7), igniter (8).
In figure solid arrow represent combustion gas and combustion air current to, dotted arrow represent combustion gas and combustion-supporting gas mixed airflow to.
Specific implementation mode
The embodiment of utility model is described below in detail, the example of the embodiment is shown in the accompanying drawings.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
Below in conjunction with the accompanying drawings 1 and attached drawing 2 specifically describe the utility model catalytic flameless burner embodiment.
Embodiment 1, as shown in Figure 1, 2, a kind of catalytic flameless burner, including two closed cylindrical housings, phase
, can be affixed by the support constructions such as holder or two end-stopping plates between ectonexine shell there are gap between mutually, the one of inner housing
End is set there are one fuel gas inlet 1 and a fuel gas inlet 2 is helped, and cylindrical gas distributor 3 is internally provided in inner housing 4,
Inner housing be equipped with multi-porous monolithic catalyst 5 and with inner housing airtight connection, outer housing 6 be equipped with multi-porous monolithic catalyst
7 and with outer housing airtight connection, catalyst and catalyst stagger setting on outer housing on inner housing, between inner housing and outer housing
Equipped with igniter 8.
Optionally, the length of ectonexine cylindrical housings is 0.1-5m, a diameter of 0.1- of ectonexine cylindrical housings
3m, gas distributor are in 1 or more the sheet being fixed on hypostracum inner wall, rodlike, cellular or other shapes device
One or two or more kinds make by helping fuel gas inlet and fuel gas inlet to enter there are gap between the device inside or device
Gas can be on inner housing multi-porous monolithic catalyst flowing, the multi-porous monolithic catalyst quantity on inner housing is one piece
Or two pieces or more, the top and bottom of multi-porous monolithic catalyst can be plane or nonplanar random geometry, with inner casing
Body is affixed to form complete internal layer shell, projected area and internal layer of the multi-porous monolithic catalyst on internal layer shell on inner housing
The ratio between shell geometrical surface is 0.1-1, and the thickness of multi-porous monolithic catalyst is 1-1000mm on inner housing, more on outer housing
The quantity of hole integral catalyzer is one piece or two pieces or more, and the top and bottom of multi-porous monolithic catalyst can be plane or non-flat
The random geometry in face, and outer housing is affixed forms complete outer casing, and multi-porous monolithic catalyst exists on outer housing
The ratio between projected area and outer casing geometrical surface on outer casing are 0.1-1, multi-porous monolithic catalyst on outer housing
Thickness be 1-1000mm, catalyst and catalyst stagger setting on outer housing, set between inner housing and outer housing on inner housing
It can be ignition electrode and/or electric heating wire to have igniter, igniter.
Advantageously, the length of ectonexine cylindrical housings is 2m, a diameter of 0.5m of internal layer cylindrical housings, outer layer circle
A diameter of 1m of cylindrical shell, gas distributor are the cylinder for being evenly equipped with 1cm diameter circular apertures, and through-hole rate 50% makes by combustion-supporting
The gas that gas import and fuel gas inlet enter can be on inner housing multi-porous monolithic catalyst flowing, it is porous on inner housing
Integral catalyzer quantity is three pieces, and structure is identical, is evenly distributed on inner housing, the projected area on internal layer shell
It is 0.5 with the ratio between internal layer shell geometrical surface, multi-porous monolithic catalyst thickness is 5cm foam type cuboids, on outer housing
Multi-porous monolithic catalyst quantity be three pieces, and structure is identical, is evenly distributed on inner housing, the throwing on outer casing
The ratio between shadow area and outer casing geometrical surface are 0.5, and multi-porous monolithic catalyst thickness is 5cm foam type cuboids, interior
Catalyst and catalyst stagger setting, i.e. center of the outer layer multi-porous monolithic catalyst on internal layer shell on outer housing on shell
Projection, without intersection, is equipped with igniter, igniter is a little with internal layer multi-porous monolithic catalyst between inner housing and outer housing
Fiery needle.
Embodiment 2, a kind of catalytic flameless burner, including two closed cylindrical housings, there are skies between each other
Gap, can be affixed by the support constructions such as holder or two end-stopping plates between ectonexine shell, and one end of inner housing sets that there are one help
Fuel gas inlet 1 and a fuel gas inlet 2 are internally provided with cylindrical gas distributor 3 in inner housing 4, and inner housing is equipped with
Multi-porous monolithic catalyst 5 and with inner housing airtight connection, outer housing 6 be equipped with multi-porous monolithic catalyst 7 and and outer housing
Airtight connection, catalyst and catalyst stagger setting on outer housing, are equipped with igniter between inner housing and outer housing on inner housing
8。
Optionally, the length of ectonexine cylindrical housings is 0.1-5m, a diameter of 0.1- of ectonexine cylindrical housings
3m, gas distributor are in 1 or more the sheet being fixed on hypostracum inner wall, rodlike, cellular or other shapes device
One or two or more kinds make by helping fuel gas inlet and fuel gas inlet to enter there are gap between the device inside or device
Gas can be on inner housing multi-porous monolithic catalyst flowing, the multi-porous monolithic catalyst quantity on inner housing is one piece
Or two pieces or more, the top and bottom of multi-porous monolithic catalyst can be plane or nonplanar random geometry, with inner casing
Body is affixed to form complete internal layer shell, projected area and internal layer of the multi-porous monolithic catalyst on internal layer shell on inner housing
The ratio between shell geometrical surface is 0.1-1, and the thickness of multi-porous monolithic catalyst is 1-1000mm on inner housing, more on outer housing
The quantity of hole integral catalyzer is one piece or two pieces or more, and the top and bottom of multi-porous monolithic catalyst can be plane or non-flat
The random geometry in face, and outer housing is affixed forms complete outer casing, and multi-porous monolithic catalyst exists on outer housing
The ratio between projected area and outer casing geometrical surface on outer casing are 0.1-1, multi-porous monolithic catalyst on outer housing
Thickness be 1-1000mm, catalyst is set with catalyst on outer housing to being just arranged between inner housing and outer housing on inner housing
It can be ignition electrode and/or electric heating wire to have igniter, igniter.
Advantageously, the length of ectonexine cylindrical housings is 3m, a diameter of 1m of internal layer cylindrical housings, outer layer cylinder
A diameter of 2m of shape shell, gas distributor are the cylinder for being evenly equipped with 1cm diameter circular apertures, and through-hole rate 50% makes by combustion-supporting gas
The gas that import and fuel gas inlet enter can be on inner housing multi-porous monolithic catalyst flowing, it is porous whole on inner housing
Body formula catalyst amounts are three pieces, and structure is identical, is evenly distributed on inner housing, the projected area on internal layer shell with
The ratio between internal layer shell geometrical surface is 0.6, and multi-porous monolithic catalyst thickness is 10cm foam type cuboids, on outer housing
Multi-porous monolithic catalyst quantity is three pieces, and structure is identical, is evenly distributed on inner housing, the projection on outer casing
The ratio between area and outer casing geometrical surface are 0.6, and multi-porous monolithic catalyst thickness is 10cm foam type cuboids, inner casing
Catalyst with catalyst on outer housing to being just arranged, i.e. throw by center of the outer layer multi-porous monolithic catalyst on internal layer shell on body
Shadow is completely superposed with internal layer multi-porous monolithic catalyst, igniter is equipped between inner housing and outer housing, igniter is ignition electrode.
Embodiment 3, a kind of catalytic flameless burner, including two closed cuboid shells, one end of inner housing
If there are one fuel gas inlet and a fuel gas inlet is helped, in the gas distributor that is internally provided with of inner housing, inner housing is equipped with
Multi-porous monolithic catalyst and with inner housing airtight connection, outer housing is equipped with multi-porous monolithic catalyst and closed with outer housing
It connects, catalyst and catalyst stagger setting on outer housing, are equipped with igniter on inner housing between inner housing and outer housing.
Optionally, the length of ectonexine cuboid shell is 0.1-5m, the bottom surface length of side of ectonexine cuboid shell
For 0.1-3m, gas distributor is 1 or more the sheet being fixed on hypostracum inner wall, rodlike, cellular or other shapes
One or two or more kinds in device, there are gap between the device inside or device, make by help fuel gas inlet and fuel gas into
Mouthful gas entered can be on inner housing multi-porous monolithic catalyst flowing, the multi-porous monolithic catalyst quantity on inner housing
For one or more, the top and bottom of multi-porous monolithic catalyst can be plane or nonplanar random geometry,
With inner housing is affixed forms complete internal layer shell, projected area of the multi-porous monolithic catalyst on internal layer shell on inner housing
It is 0.1-1 with the ratio between internal layer shell geometrical surface, the thickness of multi-porous monolithic catalyst is 1-1000mm, shell on inner housing
The quantity of multi-porous monolithic catalyst is one or more on body, and the top and bottom of multi-porous monolithic catalyst can be plane
Or nonplanar random geometry, and outer housing is affixed forms complete outer casing, and multi-porous monolithic is urged on outer housing
The ratio between projected area of the agent on outer casing and outer casing geometrical surface are 0.1-1, multi-porous monolithic on outer housing
The thickness of catalyst is 1-1000mm, catalyst and catalyst stagger setting, inner housing and outer housing on outer housing on inner housing
Between be equipped with igniter, igniter can be ignition electrode and/or electric heating wire.
Advantageously, the length of inside and outside cuboid shell is 3m, and the internal layer cuboid housing bottom surface length of side is 1.5m,
The outer layer cuboid housing bottom surface length of side is 2.5m, one end of internal layer shell set there are one help fuel gas inlet and a fuel gas into
Mouthful, in the gas distributor that is internally provided with of inner housing, gas distributor is 1 cellular device being fixed on hypostracum inner wall
Part, the device inside is there are gap, porosity 60%, makes from helping gas that fuel gas inlet and fuel gas inlet enter can be to
Multi-porous monolithic catalyst on inner housing flows, and the multi-porous monolithic catalyst quantity on inner housing is four and structure phase
Together, the top and bottom of multi-porous monolithic catalyst are planar rectangular, and rectangle length 3m, axial cross section is rectangle, and rectangle is long
For 0.5m, four multi-porous monolithic catalysts are uniformly and symmetrically distributed in four sides of internal layer cuboid shell square section
Heart position, and inner housing is affixed forms complete internal layer shell, and four multi-porous monolithic catalysts are in inner layer case on inner housing
The ratio between projected area and internal layer shell geometrical surface on body are 1/3, and the thickness of multi-porous monolithic catalyst is on inner housing
4cm, the quantity of multi-porous monolithic catalyst is four on outer housing and structure is identical, and the top and bottom of multi-porous monolithic catalyst are
Nonplanar rectangle, rectangle length 2.8m, axial cross section are square, and two length of sides of square are 0.5m, and four porous
Integral catalyzer is uniformly and symmetrically distributed on outer casing in four apex angle positions of outer layer cuboid shell square section
It sets, and outer housing is affixed forms complete outer casing, and four multi-porous monolithic catalysts are on outer casing on outer housing
Projected area and the ratio between outer casing geometrical surface be 2/3, the thickness of multi-porous monolithic catalyst is 4cm on outer housing,
During catalyst and catalyst stagger setting on outer housing on inner housing, i.e. outer layer multi-porous monolithic catalyst are on internal layer shell
The heart is projected with internal layer multi-porous monolithic catalyst without intersection, and igniter is equipped between inner housing and outer housing, and igniter is
Ignition electrode.
Embodiment 4, a kind of catalytic flameless burner, including two closed cuboid shells, one end of inner housing
If there are one fuel gas inlet and a fuel gas inlet is helped, in the gas distributor that is internally provided with of inner housing, inner housing is equipped with
Multi-porous monolithic catalyst and with inner housing airtight connection, outer housing is equipped with multi-porous monolithic catalyst and closed with outer housing
It connects, catalyst and catalyst stagger setting on outer housing, are equipped with igniter on inner housing between inner housing and outer housing.
Optionally, the length of ectonexine cuboid shell is 0.1-5m, the bottom surface length of side of ectonexine cuboid shell
For 0.1-3m, gas distributor is 1 or more the sheet being fixed on hypostracum inner wall, rodlike, cellular or other shapes
One or two or more kinds in device, there are gap between the device inside or device, make by help fuel gas inlet and fuel gas into
Mouthful gas entered can be on inner housing multi-porous monolithic catalyst flowing, the multi-porous monolithic catalyst quantity on inner housing
For one or more, the top and bottom of multi-porous monolithic catalyst can be plane or nonplanar random geometry,
With inner housing is affixed forms complete internal layer shell, projected area of the multi-porous monolithic catalyst on internal layer shell on inner housing
It is 0.1-1 with the ratio between internal layer shell geometrical surface, the thickness of multi-porous monolithic catalyst is 1-1000mm, shell on inner housing
The quantity of multi-porous monolithic catalyst is one or more on body, and the top and bottom of multi-porous monolithic catalyst can be plane
Or nonplanar random geometry, and outer housing is affixed forms complete outer casing, and multi-porous monolithic is urged on outer housing
The ratio between projected area of the agent on outer casing and outer casing geometrical surface are 0.1-1, multi-porous monolithic on outer housing
The thickness of catalyst is 1-1000mm, on inner housing catalyst with catalyst on outer housing to being just arranged, inner housing and outer housing
Between be equipped with igniter, igniter can be ignition electrode and/or electric heating wire.
Advantageously, the length of inside and outside cuboid shell is 4m, and the internal layer cuboid housing bottom surface length of side is 2m, outside
The layer cuboid housing bottom surface length of side is 2.5m, one end of internal layer shell set there are one help fuel gas inlet and a fuel gas into
Mouthful, in the gas distributor that is internally provided with of inner housing, gas distributor is 1 cellular device being fixed on hypostracum inner wall
Part, there are gap, porositys 60% to make by helping the gas that fuel gas inlet and fuel gas inlet enter can for the device inside
Multi-porous monolithic catalyst on inner housing flows, and the multi-porous monolithic catalyst quantity on inner housing is four and structure phase
Together, the top and bottom of multi-porous monolithic catalyst are planar rectangular, and rectangle length 3.6m, axial cross section is rectangle, rectangle
A length of 0.5m, four multi-porous monolithic catalysts are uniformly and symmetrically distributed in four sides of internal layer cuboid shell square section
Center, and inner housing is affixed forms complete internal layer shell, and four multi-porous monolithic catalysts are in internal layer on inner housing
The ratio between projected area and internal layer shell geometrical surface on shell are 1/3, the thickness of multi-porous monolithic catalyst on inner housing
For 4cm, the quantity of multi-porous monolithic catalyst is four on outer housing and structure is identical, the top and bottom of multi-porous monolithic catalyst
For nonplanar rectangle, rectangle length 3.6m, axial cross section is square, and two length of sides of square are 0.5m, more than four
Hole integral catalyzer is uniformly and symmetrically distributed on outer casing in four apex angles of outer layer cuboid shell square section
Position, and outer housing is affixed forms complete outer casing, and four multi-porous monolithic catalysts are in outer casing on outer housing
On projected area and the ratio between outer casing geometrical surface be 2/3, the thickness of multi-porous monolithic catalyst is on outer housing
4cm, catalyst and catalyst stagger setting on outer housing on inner housing, i.e. outer layer multi-porous monolithic catalyst is on internal layer shell
Central projection be completely superposed with internal layer multi-porous monolithic catalyst, between inner housing and outer housing be equipped with igniter, igniter
For ignition electrode.
In the description of the present invention, it should be understood that term " length ", " width ", " thickness ", "upper", "lower",
"top", "bottom" "inner", "outside", " flow direction ", etc. the orientation or positional relationships of instructions be that orientation based on ... shown in the drawings or position are closed
System, is merely for convenience of describing the present invention and simplifying the description, does not indicate or imply the indicated device or element is necessary
With specific orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
Although having referred to the illustrative embodiment that alterations disclose the utility model in detail herein, answer
Solution, the utility model is not limited to exact embodiment, and can realize various change by those who familiarize themselves with the technology in the present invention
Become and changes without departing from such as by appended claims and its scope of the utility model of equivalent definition.
Claims (7)
1. a kind of catalytic flameless burner, it is characterised in that：It is nested by shell successively from inside to outside including two and three or more
The airtight chamber that body is rolled into, wraps up between all or part of shell of adjacent airtight chamber that there are gaps, and there are gaps
Shell is made of multi-porous monolithic catalyst or by multi-porous monolithic catalyst and sealing material along surface of shell successively closed company
Connect composition；Igniter (8) is equipped at least one chamber other than inner most chamber；In in inner most chamber be equipped with gas
Body distributor (3) helps gas source and fuels sources to be connected with inner most chamber through gas distributor (3) by pipeline.
2. catalytic flameless burner according to claim 1, which is characterized in that including two and three or more one end opens
Chamber, open end is arranged to two of the same direction and three with upper cavity is nested successively from inside to outside, neighboring chambers it
Between there are gaps；And inner most cavity hatch end is equipped with sealing plate, passes through sealing plate sealed opening end；From inside to outside adjacent
It is equipped with sealing plate between cavity hatch end, the cavity between neighboring chambers is sealed by sealing plate；Cavity is catalyzed by multi-porous monolithic
Agent is constituted or is made of along housing surface successively airtight connection with sealing material multi-porous monolithic catalyst；In inner most chamber
The sealing plate of body open end helps fuel gas inlet (1) and at least one fuel gas inlet (2) or equipped at least equipped at least one
The common inlet of one combustion-supporting gas and fuel is equipped with the cloth wind with through-hole in the inside of inner most cavity (4) close to open end
Plate, the edge of air distribution plate and cavity inner wall face airtight connection, in forming a gas distributor in cavity, in from inside to outside
Igniter (8) is equipped at least one internal chamber formed between neighboring chambers.
3. catalytic flameless burner according to claim 1, which is characterized in that sealing material is in metal or refractory material
One or two or more kinds, refractory material is ceramics, the one or two or more kinds in refractory brick.
4. catalytic flameless burner according to claim 1 or 2, which is characterized in that the quantity of the closed chamber is
Two or three are above and there are gaps between each other, and the geometry of airtight chamber can be in sphere, spheroid, cylinder etc.
One or two or more kinds of Arbitrary 3 D geometries, and the geometry of each layer chamber can be identical or different, axial to cut
Face can be one or two or more kinds of random two-dimensional geometries in circle, triangle, rectangle, polygon etc., between shell
It can be affixed by the support constructions such as holder or two end-stopping plates.
5. catalytic flameless burner according to claim 1 or 2, which is characterized in that gas distributor (3) is by 1 or more
Be fixed in the sheet on inner most cavity (4) inner wall, one kind in rodlike, cellular or other shapes device or two kinds with
Upper composition is collectively formed by one or two or more kinds of and inner most cavity inner walls in above-mentioned device, in the device
There are gap between portion or device, make by helping the gas that fuel gas inlet (1) and fuel gas inlet (2) enter can after gas distributor
Multi-porous monolithic catalyst (5) flowing on inner housing.
6. catalytic flameless burner according to claim 1,2 or 3, which is characterized in that multi-porous monolithic is catalyzed on shell
The quantity of agent is one piece or two pieces or more, and the surfaces externally and internally of multi-porous monolithic catalyst can be plane or nonplanar arbitrary several
What shape, and sealing material is affixed forms complete shell, and multi-porous monolithic catalyst is on one side surface of shell on shell
The ratio between projected area and shell this side surface area be 0.1-1, the thickness of multi-porous monolithic catalyst is 1- on shell
1000mm。
7. catalytic flameless burner according to claim 1 or 2, which is characterized in that igniter (8) can will pass through penetralia
Cavity on multi-porous monolithic catalyst fuel and help fuel gas mixture to ignite, the igniter can be ignition electrode and/or
Electric heating wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721691438.4U CN207716439U (en) | 2017-12-07 | 2017-12-07 | A kind of catalytic flameless burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721691438.4U CN207716439U (en) | 2017-12-07 | 2017-12-07 | A kind of catalytic flameless burner |
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| Publication Number | Publication Date |
|---|---|
| CN207716439U true CN207716439U (en) | 2018-08-10 |
Family
ID=63059721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721691438.4U Active CN207716439U (en) | 2017-12-07 | 2017-12-07 | A kind of catalytic flameless burner |
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| CN (1) | CN207716439U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113716946A (en) * | 2021-08-23 | 2021-11-30 | 西安交通大学 | 3D printing assemblable monolithic catalyst and preparation method thereof |
| CN114383179A (en) * | 2021-12-13 | 2022-04-22 | 中氢新能(北京)新能源技术研究院有限公司 | Heating system using flameless combustion reactor |
-
2017
- 2017-12-07 CN CN201721691438.4U patent/CN207716439U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113716946A (en) * | 2021-08-23 | 2021-11-30 | 西安交通大学 | 3D printing assemblable monolithic catalyst and preparation method thereof |
| CN113716946B (en) * | 2021-08-23 | 2022-06-03 | 西安交通大学 | 3D printing assemblable monolithic catalyst and preparation method thereof |
| CN114383179A (en) * | 2021-12-13 | 2022-04-22 | 中氢新能(北京)新能源技术研究院有限公司 | Heating system using flameless combustion reactor |
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