CN106287708B - Catalytic burner and gas heater with it - Google Patents
Catalytic burner and gas heater with it Download PDFInfo
- Publication number
- CN106287708B CN106287708B CN201610871287.4A CN201610871287A CN106287708B CN 106287708 B CN106287708 B CN 106287708B CN 201610871287 A CN201610871287 A CN 201610871287A CN 106287708 B CN106287708 B CN 106287708B
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- Prior art keywords
- catalyst converter
- burner
- catalytic burner
- combustion
- framework
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Classifications
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- 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
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- 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
- F23D14/12—Radiant burners
- F23D14/18—Radiant burners using catalysis for flameless combustion
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
- F23D2203/107—Flame diffusing means coated with catalysts
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
Abstract
The invention discloses a kind of catalytic burner and with its gas heater, wherein catalytic burner includes: burner framework, and premix chamber is defined in burner frame body, and burner framework has the air inlet and air outlet be connected with premix chamber；Catalyst converter, catalyst converter are located in burner framework and are located at gas outlet, and catalyst converter is configured to the sustained combustion when temperature is more than predetermined temperature and has combustion gas and air to supply.Catalytic burner according to an embodiment of the present invention, structure is simple, each component connection is reliable, compared with flaming combustion mode in the related technology, the catalytic burner is using catalysis burning, it is ensured that combustion gas full combustion, it is more energy-saving and environmentally friendly, the discharge of carbon monoxide and nitrogen oxides can be not only reduced, but also burning mitigates, combustion noise is low, safety is higher.
Description
Technical field
The present invention relates to technical field of water heaters, more particularly, to a kind of catalytic burner and with its combustion gas heat
Hydrophone.
Background technique
The primary combustion mode that burner uses is flaming combustion, i.e., combustion gas and air do not carry out in advance in burner
Mixing, but combustion gas and air are sent into combustion chamber respectively, and burns wherein in mixing, the flame of generation of burning compared with
It is long, and have distinct profile, since the activation energy of flaming combustion is higher, burning velocity is slow, and incomplete combustion causes under the thermal efficiency
Drop.In addition, the gas radiation amount of flaming combustion flame is smaller, mainly it is easily reduced with heat convection for main heat transfer type
The utilization rate of the energy.
Furthermore the difference that the different parts due to burning are contacted with air is easy to cause the completeness and temperature of burning
Also different, in high-temperature region, since temperature is higher, it is easy to cause the generation of NOx pollutant；In low-temperature space, due to burning not
Completely, it is easy to produce the harmful substances such as carbon monoxide, hydrocarbon and tar.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention mentions
A kind of catalytic burner out, the structure of the catalytic burner is simple, compact, small in size, and use is safe, energy conservation and environmental protection, user's body
It tests.
The present invention also proposes a kind of gas heater with above-mentioned catalytic burner.
The catalytic burner of embodiment according to a first aspect of the present invention, comprising: burner framework, in the burner frame body
Premix chamber is defined, the burner framework has the air inlet and air outlet be connected with the premix chamber；Catalyst converter, it is described to urge
Change device to be located in the burner framework and be located at the gas outlet, the catalyst converter is configured to when temperature be more than predetermined temperature
Sustained combustion when spending and have combustion gas and air to supply.
Catalytic burner according to an embodiment of the present invention, structure is simple, and each component connection is reliable, with having in the related technology
Flame combustion system is compared, and the catalytic burner is using catalysis burning, it is ensured that combustion gas full combustion is more energy-saving and environmentally friendly, no
The discharge of carbon monoxide and nitrogen oxides can be only reduced, and burning mitigates, combustion noise is low, safety is higher.The catalysis
The structure of burner is simple, compact, small in size, and use is safe, energy conservation and environmental protection, and user experience is good.
In addition, catalytic burner according to an embodiment of the present invention, can also have the following additional technical features:
According to one embodiment of present invention, the catalyst converter includes the catalyst of matrix and coating on the matrix,
And preheating section is integrated on the catalyst converter.
It according to one embodiment of present invention, further include distribution member, the distribution member is located at the air inlet, described
With dispensing orifice multiple arranged spaced apart and being connected with the premix chamber in distribution member.
According to one embodiment of present invention, the dispensing orifice is arranged in multi-turn, and every circle includes multiple along the distribution member
Circumferentially spaced arrangement the dispensing orifice.
According to one embodiment of present invention, multiple dispensing orifices are arranged in emitting shape.
According to one embodiment of present invention, the outer periphery of the distribution member is equipped with multiple lugs, and the distribution member passes through
Multiple lugs are detachably connected with the burner framework.
According to one embodiment of present invention, further includes: catalyst converter pedestal, the catalyst converter pedestal are located at the burner
In framework and it is located at the gas outlet；Catalyst converter upper cover, the catalyst converter upper cover be located on the catalyst converter pedestal and with
The installation cavity for accommodating catalyst converter is limited between catalyst converter pedestal, the catalyst converter upper cover has to be connected with the installation cavity
Opening.
According to one embodiment of present invention, the catalyst converter pedestal forms the ring of the circumferentially extending along the gas outlet
Shape, the catalyst converter upper cover are bonded with the catalyst converter pedestal, are equipped between the catalyst converter pedestal and the burner framework
It is insulated gasket.
According to one embodiment of present invention, the position of the neighbouring gas outlet of the burner framework is equipped with ignition electrode
Or inductive needle.
According to one embodiment of present invention, described matrix is foam silicon carbide ceramics, and the catalyst is modified oxidized
The mixture of aluminium, platinum, palladium and iron oxide and/or iron oxide.
The gas heater of embodiment according to a second aspect of the present invention burns including the catalysis according to above-described embodiment
Device.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Fig. 1 is perspective view of the catalytic burner according to an embodiment of the present invention in an angle；
Fig. 2 is perspective view of the catalytic burner according to an embodiment of the present invention in another angle；
Fig. 3 is the cross-sectional view of catalytic burner according to an embodiment of the present invention；
Fig. 4 is the cross-sectional view in another direction of catalytic burner according to an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the distribution member of catalytic burner according to an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of gas heater according to an embodiment of the present invention.
Appended drawing reference:
A: gas heater；
100: catalytic burner；
11: burner framework；
1101: premix chamber；1102: air inlet；1103: gas outlet；1104: installing port；
12: catalyst converter；
13: catalyst converter pedestal；
14: catalyst converter upper cover；
15: distribution member；151: dispensing orifice；152: lug；
16: gasket；
200: shell；21: accommodating chamber；22: water inlet interface；23: water outlet mouthpiece；
300: blower；
400: gas ratio valve；
500: heat exchanger；
600: exhaust fume collecting hood；61: smoke outlet.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
1 to Fig. 5 catalytic burner 100 for specifically describing embodiment according to a first aspect of the present invention with reference to the accompanying drawing.
Catalytic burner 100 according to an embodiment of the present invention includes burner framework 11 and catalyst converter 12.Specifically, combustion
Premix chamber 1101 is defined in burner framework 11, burner framework 11 has the air inlet 1102 be connected with premix chamber 1101 and goes out
Port 1103, catalyst converter 12 are located in burner framework 11 and are located at gas outlet 1103, and catalyst converter 12 is configured to work as temperature
Sustained combustion when more than predetermined temperature and thering is combustion gas and air to supply.
In other words, which is mainly made of burner framework 11 and catalyst converter 12, wherein burner frame
Body 11 extends along the vertical direction (up and down direction as shown in figures 1 and 3), and it is spacious that top and bottom are defined in burner framework 11
The premix chamber 1101 opened, the lower ending opening formation air inlet 1102 of burner framework 11, and the upper end opening of burner framework 11
Form gas outlet 1103.
Further, catalyst converter 12 is located at the gas outlet 1103 of burner framework 11, and catalyst converter 12 and burner frame
The inner wall of body 11 is connected, for example, catalyst converter 12 can form structure corresponding with the shape of gas outlet 1103, is then connected to
On the inner wall of burner framework 11, to guarantee being fixedly connected for catalyst converter 12 and burner framework 11, catalyst converter 12 can be with
Netted, honeycomb structure is formed, when catalytic burner 100 works, air and combustion gas pass through air inlet 1102 and enter premix chamber
It is sufficiently mixed, then by the catalyst converter 12 at gas outlet 1103 and is preheated, in the effect of catalyst converter 12 in 1101
Under, combustion gas and air burning catalysis burn, to reduce the discharge of carbon monoxide and nitrogen oxides.
Catalytic burner 100 according to an embodiment of the present invention as a result, structure is simple, and each component connection is reliable, to related skill
Flaming combustion mode in art is compared, and the catalytic burner 100 is using catalysis burning, it is ensured that combustion gas full combustion, more
Energy conservation and environmental protection can not only reduce the discharge of carbon monoxide and nitrogen oxides, but also burning mitigates, combustion noise is low, safety
It is higher.The structure of the catalytic burner 100 is simple, compact, small in size, and use is safe, energy conservation and environmental protection, and user experience is good.
Wherein, according to one embodiment of present invention, catalyst converter 12 includes matrix and coated in the catalyst on matrix, and
Preheating section is integrated on catalyst converter 12.
That is, catalyst converter 12 is mainly made of matrix and catalyst, matrix can form netted, honeycomb structure,
And preheating section is integrated on the position of the neighbouring premix chamber 1101 of matrix, catalyst needed for catalysis burning is located at the interior of matrix
On surface, when guaranteeing that the gaseous mixture of combustion gas and air passes through catalyst converter 12, it can burn abundant, uniform.
Specifically, combustion gas and air first pass around the preheating on catalyst converter 12 after fully mixed in premix chamber 1101
Section, under the action of preheating section, the temperature of catalyst is gradually risen, and catalyst is made to reach preset temperature (initiation temperature), thus
So that catalyst is given full play to catalytic function, realizes the catalysis burning of combustion gas.
As a result, by the way that preheating section to be integrated on catalyst converter 12, it can reduce the volume of burner, realize the light of burner
The purpose of quantization, it is ensured that catalyst can achieve initiation temperature, so that catalyst be allow to play catalytic function, realize combustion gas
Catalysis burning, compared with flaming combustion mode in the related technology, the catalytic burner 100 using catalysis combustion system, no
The low emission of carbon monoxide and nitrogen oxides only may be implemented, safety is higher, and can reduce combustion noise, energy-saving ring
It protects, user experience is good.
Optionally, according to one embodiment of present invention, matrix is foam silicon carbide ceramics, and catalyst is modified oxidized
The mixture of aluminium, platinum, palladium and iron oxide and/or iron oxide.
The matrix being process using foam silicon carbide ceramics, not only contributes to the attachment of catalyst, to increase catalysis
The bond area of agent, so improve combustion gas Catalytic Combustion Effect, but also can with when combustion gas and air burning when it is further
It is sufficiently mixed, guarantees that combustion gas can sufficiently and uniformly burn, furthermore, foam silicon carbide ceramics high temperature resistant, intensity is high, Ke Yishi
Existing open fire burning.
Further, catalyst is mainly made of modified aluminas, active component and auxiliary agent, wherein active component can
Think that platinum, palladium, auxiliary agent can be iron oxide, iron oxide, is coated on matrix, protects after slurries are made by bonding agent in catalyst
Card combustion gas and the gaseous mixture of air can come into full contact with catalyst, to make combustion gas in each region of catalyst converter 12 can be with
Homogenous combustion improves the Catalytic Combustion Effect of combustion gas.
Advantageously, according to one embodiment of present invention, catalytic burner 100 further includes distribution member 15, and distribution member 15 is covered
It is located at air inlet 1102, with dispensing orifice 151 multiple arranged spaced apart and being connected with premix chamber 1101 in distribution member 15.
In other words, which is mainly made of burner framework 11, catalyst converter 12 and distribution member 15, wherein
Distribution member 15 is located at the air inlet 1102 of burner framework 11, and the shape one of the shape of distribution member 15 and air inlet 1102
It causing, distribution member 15 is equipped with multiple dispensing orifices 151 arranged spaced apart, and each dispensing orifice 151 is connected with premix chamber 1101 respectively,
When combustion gas and air pass through distribution member 15, multiple dispensing orifices 151 in distribution member 15 can be broken up combustion gas and air, thus
It is sufficiently mixed combustion gas with air, guarantees that the ratio of combustion gas and air is consistent in different zones, and then make combustion gas and sky
The gaseous mixture of gas sufficiently and uniformly burns, and realizes the catalysis burning of combustion gas, can not only reduce carbon monoxide and nitrogen oxides
Discharge, is more energy-saving and environmentally friendly, and burning mitigates, combustion noise is low, and safety is higher.
Optionally, according to one embodiment of present invention, dispensing orifice 151 is arranged in multi-turn, and every circle includes multiple along distribution
The dispensing orifice 151 of the circumferentially spaced arrangement of part 15.Specifically, distribution member 15 can substantially form circular plate, distribution member 15
It is equipped with multi-turn dispensing orifice 151 arranged spaced apart, multiple dispensing orifices 151 of every circle are along its circumferentially spaced arrangement, advantageously,
Multiple dispensing orifices 151 are evenly arranged, to guarantee that combustion gas can be mixed more sufficiently and uniformly with air, further increase combustion
The catalysis of the gaseous mixture of gas and air is burnt.
Advantageously, according to one embodiment of present invention, multiple dispensing orifices 151 are arranged in emitting shape.Referring to Fig. 5, distribution
Part 15 be equipped with multiple groups dispensing orifice 151, multiple groups dispensing orifice 151 along distribution member 15 circumferentially spaced arrangement, multiple points of every group
For distribution 151 along the arrangement that is radially spaced of distribution member 15, i.e. the layout density of the dispensing orifice 151 at the middle part of distribution member 15 is closeer,
And the layout density of the second dispensing orifice of separate center 151 of distribution member 15 is relatively dredged, combustion gas and air pass through dispensing orifice 151 respectively and are in
The distribution member 15 of emitting shape arrangement, enters combustion gas in premix chamber 1101 with air and spreads around from the central position, thus into
One step guarantees that combustion gas can be sufficiently mixed with air, and then the catalysis for improving the gaseous mixture of combustion gas and air is burnt, more energy saving
Environmental protection can not only reduce the discharge of carbon monoxide and nitrogen oxides, but also burning mitigates, combustion noise is low, and safety is higher.
In addition, according to one embodiment of present invention, the outer periphery of distribution member 15 is equipped with multiple lugs 152, distribution member 15
It is detachably connected by multiple lugs 152 with burner framework 11.
Specifically, distribution member 15 and air inlet 1102 form the consistent circle of shape, and the outer diameter of distribution member 15 is big
In be equal to air inlet 1102 radial dimension, the outer periphery of distribution member 15 set there are four along its circumferentially spaced arrangement lug
152, each extending radially outwardly along distribution member 15 of lug 152, distribution member 15 passes through multiple lugs 152 and burner framework 11
It is connected, guarantees the connection reliability of distribution member 15 and burner framework 11.
Wherein, as shown in Figure 3 and Figure 4, catalytic burner 100 further includes catalyst converter pedestal 13 and catalyst converter upper cover 14, is urged
Change device pedestal 13 to be located in burner framework 11 and be located at gas outlet 1103, catalyst converter upper cover 14 is located at catalyst converter pedestal 13
The installation cavity for accommodating catalyst converter 12 above and between catalyst converter pedestal 13 is limited, catalyst converter upper cover 14 has and installation cavity
The opening of conducting.
In other words, the catalytic burner 100 is mainly by burner framework 11, catalyst converter 12, catalyst converter pedestal 13, catalyst converter
Upper cover 14 forms, and wherein catalyst converter pedestal 13 is located at the gas outlet 1103 of burner framework 11, the middle part of catalyst converter pedestal 13
Equipped with the base vent mouth be connected with premix chamber 1101, catalyst converter upper cover 14 be located at the top of catalyst converter pedestal 13 and with catalysis
Device pedestal 13 is connected, and the middle part of catalyst converter upper cover 14 is equipped with upper cover blow vent, between catalyst converter pedestal 13 and catalyst converter upper cover 14
The installation cavity for accommodating catalyst converter 12 is limited, installation cavity is connected with base vent mouth and upper cover blow vent respectively.
Catalyst converter 12 is located to the installation cavity limited between catalyst converter pedestal 13 and catalyst converter upper cover 14 as a result, it can be with
Guarantee the fixed installation of catalyst converter 12, guarantees that catalyst converter 12 can play one's part to the full in the catalyticing combustion process of combustion gas.
Optionally, according to one embodiment of present invention, catalyst converter pedestal 13 forms the circumferentially extending along gas outlet 1103
Annular, catalyst converter upper cover 14 is bonded with catalyst converter pedestal 13, and insulation is equipped between catalyst converter pedestal 13 and burner framework 11
Gasket 16.As a result, by the way that gasket 16, Ke Yibao is arranged between catalyst converter pedestal 13 and the upper surface of burner framework 11
Leakproofness between the two is demonstrate,proved, so that the gaseous mixture of combustion gas and air in premix chamber 1101 be avoided to leak, leads to combustion gas
Imperfect combustion.
Advantageously, according to one embodiment of present invention, the position of the neighbouring gas outlet 1103 of burner framework 11 is equipped with
Ignition electrode or inductive needle.Specifically, the roof of burner framework 11 is equipped with the peace that ignition electrode or inductive needle are held high for Anhui group
It fills mouth 1104, ignition electrode or inductive needle to be arranged adjacent to gas outlet 1103, to realize igniting, makes the temperature of the catalyst of catalyst converter 12
Degree reaches preset temperature (initiation temperature), to allow the gaseous mixture of combustion gas and air by catalysis combustion occurs when preheating section
It burns.
The course of work of catalytic burner 100 according to an embodiment of the present invention is described in detail combined with specific embodiments below.
As shown in figures 1 and 3, the catalytic burner 100 is mainly by burner framework 11, catalyst converter 12, catalyst converter pedestal
13, catalyst converter upper cover 14, distribution member 15, gasket 16, ignition electrode/inductive needle composition.
Wherein, in the installing port 1104 for the bottom wall that ignition electrode/inductive needle portion dress is mounted on burner framework 11, distribution member 15
It is fixed at the air inlet 1102 of burner framework 11, realizes evenly distributing for combustion gas and air mixture, guarantee to reach catalysis
The combustion gas in each region of device 12 and air mixture are uniform, realize 12 full section homogenous combustion of catalyst converter.
Catalyst converter 12 is mainly formed by matrix and coated in the catalyst on matrix, and catalyst needs certain initiation temperature
Competence exertion catalytic function realizes catalysis burning, therefore catalyst converter 12 is integrated with open fire preheated burning section, makes on catalyst converter 12
Catalyst is preheated.
When catalytic burner 100 works, ignition electrode/inductive needle realizes igniting first, thus to the preheating in catalyst converter 12
Catalyst in section is heated, until the temperature of catalyst reaches 700 DEG C or more, then by air and combustion gas respectively by into
Port 1102 enters in premix chamber 1101, in the process, distribution member 15 at air inlet 1102 can by combustion gas and air into
Row is sufficiently mixed, and when the gaseous mixture of combustion gas and air enters in premix chamber 1101, then carries out catalysis combustion by catalyst converter 12
It burns, since the temperature of catalyst has reached initiation temperature, can guarantee the catalysis burning of the gaseous mixture of combustion gas and air
Lasting progress, effectively inhibit nitrogen oxides generation, while be catalyzed burning it is more complete, carbon monoxide in flue gas can be reduced
Content, the catalytic burner 100 is using catalysis burning, it is ensured that combustion gas full combustion is more energy-saving and environmentally friendly, not only can be with
The discharge (concentration of emission of carbon monoxide and nitrogen oxides is lower than 10ppm) of carbon monoxide and nitrogen oxides is reduced, and is burnt
Mitigation, combustion noise are low (combustion noise is lower than 48dB), and safety is higher.The structure of the catalytic burner 100 is simple, compact,
Small in size, use is safe, energy conservation and environmental protection, and user experience is good.
1 to Fig. 6 gas heater A for specifically describing embodiment according to a second aspect of the present invention with reference to the accompanying drawing.
Gas heater A according to an embodiment of the present invention includes the catalytic burner 100 according to above-described embodiment.Due to root
It is had above-mentioned technique effect according to the catalytic burner 100 of the embodiment of the present invention, therefore, gas and hot water according to an embodiment of the present invention
Device A also has above-mentioned technique effect, i.e. the structure of gas heater A is simple, compact, and each component connection is reliable, is convenient to mount and dismount,
Small in size, operating noise is low, and use is safe and reliable, energy conservation and environmental protection, and user experience is good.
What needs to be explained here is that due to the low even flameless combustion of catalysis combustion flame, with combustion gas in the related technology
Water heater is compared, and the combustion chamber height of gas heater A can decline, to reduce complete machine height, makes gas heater A more
It is small and exquisite.
In certain specific embodiments of the invention, gas heater A includes shell 200, catalytic burner 100, wind
Machine 300, gas ratio valve 400 and heat exchanger 500.Specifically, define accommodating chamber 21 in shell 200, shell 200 have into
Water interface 22 and water outlet mouthpiece 23, catalytic burner 100 are located in accommodating chamber 21, define premix chamber in catalytic burner 100
1101, catalytic burner 100 has the air inlet 1102 be connected with premix chamber 1101 and gas outlet 1103, sets at gas outlet 1103
There is catalyst converter 12, catalyst converter 12 is configured to the sustained combustion when temperature is more than predetermined temperature and has combustion gas and air to supply.
Further, blower 300 and air inlet 1102 are connected to convey air, gas ratio valve 400 to premix chamber 1101
Outlet and air inlet 1102 be connected with to 1101 delivery of fuel gas of premix chamber, heat exchanger 500 be located at the top of burner and with combustion
Burner is connected with the heat of absorption burner burning generation, and heat exchanger 500 has inlet and outlet, and water inlet connects with water inlet
Mouth 22 is connected, and water outlet and water outlet mouthpiece 23 are connected.
Specifically, as shown in fig. 6, gas heater A is mainly by shell 200, catalytic burner 100, blower 300, combustion gas
Proportioning valve 400 and heat exchanger 500 form.Wherein, shell 200 extends along the vertical direction (up and down direction as shown in FIG. 6), shell
The accommodating chamber 21 extended along its length is defined in 200, the bottom of shell 200 is equipped with water inlet interface 22 and water outlet mouthpiece
23, the bottom in accommodating chamber 21 is equipped with blower 300, and catalytic burner 100 is located at the top of blower 300 and catalytic burner 100
Air inlet 1102 and blower 300 outlet, gas ratio valve 400 be located at the side of blower 300 and with air inlet 1102
Conducting, heat exchanger 500 is located at the top of catalytic burner 100 and is connected with catalytic burner 100, heat exchanger 500 with into
The water inlet that water interface 22 is connected and the water outlet be connected with water outlet mouthpiece 23.
Blower 300 provides air, and gas ratio valve 400 provides combustion gas, then carries out injection by venturi pre-mixed configuration
After premix, the mixture of combustion gas and air enters catalytic burner 100, after the distribution of distribution member 15, reaches catalytic burner
On 100 catalyst converter 12, burn after igniting pin mark fire, the high-temperature flue gas and heat exchanger 500 for generation of burning carry out heat
Amount exchange, thus the water in heating heat exchanger 500, guarantee outflow water heater is hot water, the flue gas warp after heat exchanges
Outdoor is discharged after the collection of exhaust fume collecting hood 600, by smoke outlet 61.
Wherein, combustion process of the mixture of combustion gas and air on catalyst converter 12 are as follows: flaming combustion is first carried out after igniting,
Catalyst converter 12 is preheated, after the temperature of catalyst converter 12 reaches predetermined temperature, changes the flow of combustion gas and air, makes to burn
Mode is switched to catalysis burning.
Gas heater A according to an embodiment of the present invention as a result, structure is simple, compact, and each component connection is reliable, volume
Small, combustion gas and air carry out catalysis burning in catalytic burner 100, the carbon monoxide and nitrogen oxides in flue gas after burning
Content it is less, energy conservation and environmental protection, use is safe, and the mixture combustion of combustion gas and air mitigate, advantageously reduce combustion gas heat
The operating noise of hydrophone A.The structure of gas heater A is simple, compact, and each component connection is reliable, is convenient to mount and dismount, operating noise
Low, use is safe, energy conservation and environmental protection, and user experience is good.
Other of gas heater A according to an embodiment of the present invention are constituted and are operated for those of ordinary skill in the art
For be all it is known, be not detailed herein.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of this specification, reference term " one embodiment ", " some embodiments ", example " " is specifically shown
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of catalytic burner characterized by comprising
Burner framework defines premix chamber in the burner frame body, and the burner framework has to be led with the premix chamber
Logical air inlet and air outlet；
Catalyst converter, the catalyst converter are located in the burner framework and are located at the gas outlet, and the catalyst converter is constructed
At the sustained combustion when temperature is more than predetermined temperature and has combustion gas and air to supply；
Catalyst converter pedestal, the catalyst converter pedestal are located in the burner framework and are located at the gas outlet；
Catalyst converter upper cover, the catalyst converter upper cover are located on the catalyst converter pedestal and limit use between catalyst converter pedestal
In the installation cavity for accommodating catalyst converter, the catalyst converter upper cover has the opening be connected with the installation cavity, the catalyst converter upper cover
It is bonded with the catalyst converter pedestal, insulation gasket is equipped between the catalyst converter pedestal and the burner framework.
2. catalytic burner according to claim 1, which is characterized in that the catalyst converter includes matrix and is coated in described
Catalyst on matrix, and preheating section is integrated on the catalyst converter.
3. catalytic burner according to claim 1, which is characterized in that further include distribution member, the distribution member is located at
At the air inlet, with dispensing orifice multiple arranged spaced apart and being connected with the premix chamber in the distribution member.
4. catalytic burner according to claim 3, which is characterized in that the dispensing orifice arranges that every circle includes in multi-turn
The dispensing orifice of multiple circumferentially spaced arrangements along the distribution member.
5. catalytic burner according to claim 4, which is characterized in that multiple dispensing orifices are arranged in emitting shape.
6. catalytic burner according to claim 3, which is characterized in that the outer periphery of the distribution member is equipped with multiple convex
Ear, the distribution member are detachably connected by multiple lugs and the burner framework.
7. catalytic burner according to claim 1, which is characterized in that the catalyst converter pedestal is formed along the gas outlet
Circumferentially extending annular.
8. catalytic burner according to claim 1, which is characterized in that the neighbouring gas outlet of the burner framework
Position be equipped with ignition electrode or inductive needle.
9. catalytic burner according to claim 2, which is characterized in that described matrix is foam silicon carbide ceramics, described
Catalyst is the mixture of modified aluminas, platinum, palladium and iron oxide and/or iron oxide.
10. a kind of gas heater, which is characterized in that including catalytic burner according to claim 1 to 9.
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| CN201610871287.4A CN106287708B (en) | 2016-09-30 | 2016-09-30 | Catalytic burner and gas heater with it |
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| CN201610871287.4A CN106287708B (en) | 2016-09-30 | 2016-09-30 | Catalytic burner and gas heater with it |
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| CN106287708A CN106287708A (en) | 2017-01-04 |
| CN106287708B true CN106287708B (en) | 2019-02-22 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018058929A1 (en) * | 2016-09-30 | 2018-04-05 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN109323443B (en) * | 2017-07-31 | 2024-04-12 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN109695954A (en) * | 2017-10-24 | 2019-04-30 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN111780154B (en) * | 2018-01-18 | 2023-01-24 | 芜湖美的厨卫电器制造有限公司 | Control device and method for gas-fired machine and gas water heater |
| CN110772890B (en) * | 2018-07-30 | 2021-11-19 | 天津大学 | Ferroferric oxide-loaded SiC foamed ceramic and preparation method and application thereof |
| CN113137753A (en) * | 2020-01-20 | 2021-07-20 | 芜湖美的厨卫电器制造有限公司 | Combustion heat exchange assembly and combustion heat exchange equipment |
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| KR20010113188A (en) * | 2000-06-16 | 2001-12-28 | 손재익 | premixed fiber-mat catalytic burner |
| CN105823204A (en) * | 2016-05-13 | 2016-08-03 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN206055623U (en) * | 2016-09-30 | 2017-03-29 | 芜湖美的厨卫电器制造有限公司 | Catalytic burner and the gas heater with which |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004012050A (en) * | 2002-06-07 | 2004-01-15 | Tokyo Gas Co Ltd | Latent heat recovering device and water heater provided therewith |
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| KR20010113188A (en) * | 2000-06-16 | 2001-12-28 | 손재익 | premixed fiber-mat catalytic burner |
| CN105823204A (en) * | 2016-05-13 | 2016-08-03 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN206055623U (en) * | 2016-09-30 | 2017-03-29 | 芜湖美的厨卫电器制造有限公司 | Catalytic burner and the gas heater with which |
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| CN106287708A (en) | 2017-01-04 |
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Effective date of registration: 20220803 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 241009 Wan Chun East Road, East Wuhu economic and Technological Development Zone, Wuhu, Anhui Patentee before: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. Co.,Ltd. Patentee before: MIDEA GROUP Co.,Ltd. |