CN106287708A - Catalytic burner and the gas heater with it - Google Patents

Catalytic burner and the gas heater with it Download PDF

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Publication number
CN106287708A
CN106287708A CN201610871287.4A CN201610871287A CN106287708A CN 106287708 A CN106287708 A CN 106287708A CN 201610871287 A CN201610871287 A CN 201610871287A CN 106287708 A CN106287708 A CN 106287708A
Authority
CN
China
Prior art keywords
catalyst converter
burner
catalytic burner
framework
combustion
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
Application number
CN201610871287.4A
Other languages
Chinese (zh)
Other versions
CN106287708B (en
Inventor
寿利萍
梁泽锋
梁国荣
薛承志
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Midea Group Co Ltd, Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201610871287.4A priority Critical patent/CN106287708B/en
Publication of CN106287708A publication Critical patent/CN106287708A/en
Application granted granted Critical
Publication of CN106287708B publication Critical patent/CN106287708B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/12Radiant burners
    • F23D14/18Radiant burners using catalysis for flameless combustion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/18Arrangement or mounting of grates or heating means
    • F24H9/1809Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2203/00Gaseous fuel burners
    • F23D2203/10Flame diffusing means
    • F23D2203/107Flame 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)

Abstract

The invention discloses a kind of catalytic burner and have its gas heater, wherein, catalytic burner includes: burner framework, defines premix chamber in burner frame body, and burner framework has the air inlet with premix chamber conducting and gas outlet;Catalyst converter, catalyst converter is located in burner framework and is positioned at gas outlet, and catalyst converter is configured to the sustained combustion when temperature exceedes predetermined temperature and has combustion gas and air supply.Catalytic burner according to embodiments of the present invention, simple in construction, each parts connect reliable, compared with the flaming combustion mode in correlation technique, this catalytic burner uses catalysis burning, it is ensured that combustion gas is fully burnt, more energy-conserving and environment-protective, being possible not only to reduce carbon monoxide and the discharge of nitrogen oxides, and mitigation of burning, combustion noise are low, safety is higher.

Description

Catalytic burner and the gas heater with it
Technical field
The present invention relates to technical field of water heaters, more particularly, to a kind of catalytic burner and the combustion gas heat with it Hydrophone.
Background technology
The primary combustion mode that burner uses is that flaming combustion, i.e. combustion gas and air are carried out in burner the most in advance Mixing, but respectively combustion gas is sent in combustor with air, and the burning of the limit of limit mixing wherein, the flame that burning produces is relatively Long, and have distinct profile, owing to the activation energy of flaming combustion is higher, burning velocity is slow, and incomplete combustion causes under the thermal efficiency Fall.Additionally, the gas radiation amount of flaming combustion flame is less, it is mainly main heat transfer type with heat convection, is easily reduced The utilization rate of the energy.
Furthermore, due to different parts and the difference of air contact of burning, it is easily caused completeness and the temperature of burning Also different, in high-temperature region, owing to temperature is higher, it is easily caused the generation of NOx pollutant;In low-temperature space, due to burning not Completely, the harmful substances such as carbon monoxide, Hydrocarbon and tar are easily produced.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention carries Going out a kind of catalytic burner, the simple in construction of this catalytic burner, compact, volume is little, uses safety, energy-conserving and environment-protective, user's body Test.
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, including: burner framework, in described burner frame body Defining premix chamber, described burner framework has the air inlet and gas outlet turned on described premix chamber;Catalyst converter, described in urge Changing device be located in described burner framework and be positioned at described gas outlet, described catalyst converter is configured to when temperature exceedes pre-constant temperature Sustained combustion when spending and have combustion gas and air supply.
Catalytic burner according to embodiments of the present invention, simple in construction, each parts connect reliable, with having in correlation technique Flame combustion system is compared, and this catalytic burner uses catalysis burning, it is ensured that combustion gas is fully burnt, more energy-conserving and environment-protective, no Only can reduce the discharge of carbon monoxide and nitrogen oxides, and mitigation of burning, combustion noise are low, safety is higher.This catalysis The simple in construction of burner, compact, volume is little, uses safety, energy-conserving and environment-protective, and Consumer's Experience is good.
It addition, catalytic burner according to embodiments of the present invention, it is also possible to have a following additional technical characteristic:
According to one embodiment of present invention, described catalyst converter includes matrix and coating catalyst on the matrix, And it is integrated with preheating section on described catalyst converter.
According to one embodiment of present invention, also include that distribution member, described distribution member are located at described air inlet, described There is in distribution member dispensing orifice that is multiple arranged spaced apart and that turn on described premix chamber.
According to one embodiment of present invention, described dispensing orifice is that multi-turn is arranged, often circle includes multiple along described distribution member The described dispensing orifice of circumferentially spaced layout.
According to one embodiment of present invention, multiple described dispensing orifices are that emitting shape is arranged.
According to one embodiment of present invention, the periphery of described distribution member is along being provided with multiple lug, and described distribution member is passed through Multiple described lugs are detachably connected with described burner framework.
According to one embodiment of present invention, also including: catalyst converter base, described catalyst converter base is located at described burner In framework and be positioned at described gas outlet;Catalyst converter upper cover, described catalyst converter upper cover be located on described catalyst converter base and with Limiting the installation cavity for accommodating catalyst converter between catalyst converter base, described catalyst converter upper cover has and turns on described installation cavity Opening.
According to one embodiment of present invention, described catalyst converter base forms the circumferentially extending ring along described gas outlet Shape, described catalyst converter upper cover is fitted with described catalyst converter base, is provided with between described catalyst converter base and described burner framework Adiabatic sealing gasket.
According to one embodiment of present invention, the position of the neighbouring described gas outlet of described burner framework is provided with ignition electrode Or inductive needle.
According to one embodiment of present invention, described matrix is foam silicon carbide ceramics, and described catalyst is modified oxidized Aluminum, platinum, palladium and ferrum oxide and/or the mixture of ferrum oxide.
The gas heater of embodiment according to a second aspect of the present invention, burns including according to the catalysis described in above-described embodiment Device.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
Fig. 1 is the axonometric chart an angle of the catalytic burner according to embodiments of the present invention;
Fig. 2 is the axonometric chart in another angle of the catalytic burner according to embodiments of the present invention;
Fig. 3 is the sectional view of catalytic burner according to embodiments of the present invention;
Fig. 4 is the sectional view in another direction of catalytic burner according to embodiments of the present invention;
Fig. 5 is the structural representation of the distribution member of catalytic burner according to embodiments of the present invention;
Fig. 6 is the structural representation of gas heater according to embodiments of the present invention.
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 base;
14: catalyst converter upper cover;
15: distribution member;151: dispensing orifice;152: lug;
16: sealing gasket;
200: housing;21: accommodate chamber;22: water inlet interface;23: water outlet mouthpiece;
300: blower fan;
400: gas ratio valve;
500: heat exchanger;
600: exhaust fume collecting hood;61: exhaust opening.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings.Below with reference to The embodiment that accompanying drawing describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
1 to Fig. 5 specifically describes the catalytic burner 100 of embodiment according to a first aspect of the present invention below in conjunction with the accompanying drawings.
Catalytic burner 100 according to embodiments of the present invention includes burner framework 11 and catalyst converter 12.Specifically, combustion Defining premix chamber 1101 in burner framework 11, burner framework 11 has the air inlet 1102 with premix chamber 1101 conducting and goes out QI KOU 1103, catalyst converter 12 is located in burner framework 11 and is positioned at gas outlet 1103, and catalyst converter 12 is configured to work as temperature Sustained combustion when exceeding predetermined temperature and have combustion gas and air supply.
In other words, this catalytic burner 100 is mainly made up of burner framework 11 and catalyst converter 12, wherein, and burner frame Body 11 vertically (above-below direction as shown in figures 1 and 3) extends, and defines top and bottom and open 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 open 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 internal face of body 11 is connected, and such as, catalyst converter 12 can form the structure corresponding with the shape of gas outlet 1103, is then connected to On the internal face of burner framework 11, thus ensureing that catalyst converter 12 is connected with the fixing of burner framework 11, catalyst converter 12 is permissible Forming netted, alveolate texture, when catalytic burner 100 works, air and combustion gas enter premix chamber by air inlet 1102 It is sufficiently mixed in 1101, is then passed through the catalyst converter 12 at gas outlet 1103 and preheats, in the effect of catalyst converter 12 Under, combustion gas and air burning catalysis burning, thus reduce the discharge of carbon monoxide and nitrogen oxides.
Thus, catalytic burner 100 according to embodiments of the present invention, simple in construction, each parts connect reliable, to relevant skill Flaming combustion mode in art is compared, and this catalytic burner 100 uses catalysis burning, it is ensured that combustion gas is fully burnt, more Energy-conserving and environment-protective, are possible not only to reduce carbon monoxide and the discharge of nitrogen oxides, and mitigation of burning, combustion noise are low, safety Higher.The simple in construction of this catalytic burner 100, compact, volume is little, uses safety, energy-conserving and environment-protective, and Consumer's Experience is good.
Wherein, according to one embodiment of present invention, catalyst converter 12 includes matrix and the catalyst being coated on matrix, and It is integrated with preheating section on catalyst converter 12.
It is to say, catalyst converter 12 is mainly made up of matrix and catalyst, matrix can form netted, alveolate texture, And being integrated with preheating section on the position of the neighbouring premix chamber 1101 of matrix, the catalyst needed for catalysis burning is located at the interior of matrix On surface, it is ensured that the gaseous mixture of combustion gas and air, when catalyst converter 12, can burn abundant, uniform.
Specifically, combustion gas and air first pass around the preheating on catalyst converter 12 in premix chamber 1101 after fully mixed Section, under the effect of preheating section, the temperature of catalyst gradually rises, and makes catalyst reach preset temperature (initiation temperature), thus Catalyst is made to give full play to catalytic function, it is achieved the catalysis burning of combustion gas.
Thus, by being integrated in by preheating section on catalyst converter 12, the volume of burner can be reduced, it is achieved burner light The purpose quantified, it is ensured that catalyst can reach initiation temperature, so that catalyst can play catalytic function, it is achieved combustion gas Catalysis burning, compared with the flaming combustion mode in correlation technique, this catalytic burner 100 use catalysis combustion system, no Only can realize the low emission of carbon monoxide and nitrogen oxides, safety is higher, and can reduce combustion noise, energy-saving ring Protecting, Consumer's Experience is good.
Alternatively, according to one embodiment of present invention, matrix is foam silicon carbide ceramics, and catalyst is modified oxidized Aluminum, platinum, palladium and ferrum oxide and/or the mixture of ferrum oxide.
The matrix using foam silicon carbide ceramics to process, not only contributes to the attachment of catalyst, thus increases catalysis The bond area of agent, and then improve the Catalytic Combustion Effect of combustion gas, but also can time combustion gas and air further when burning It is sufficiently mixed, it is ensured that combustion gas can sufficiently and uniformly be burnt, furthermore, foam silicon carbide ceramics is high temperature resistant, and intensity is high, Ke Yishi Existing naked light burning.
Further, catalyst is mainly made up of modified aluminas, active component and auxiliary agent, and wherein, active component can Thinking platinum, palladium, auxiliary agent can be ferrum oxide, ferrum oxide, is coated on matrix after catalyst is made serosity by bonding agent, protects Card combustion gas can be fully contacted with catalyst, so that the combustion gas in each region of catalyst converter 12 is the most permissible with the gaseous mixture of air Homogenous combustion, improves the Catalytic Combustion Effect of combustion gas.
Advantageously, according to one embodiment of present invention, catalytic burner 100 also includes that distribution member 15, distribution member 15 are covered It is located at air inlet 1102, distribution member 15 has multiple arranged spaced apart and with premix chamber 1101 conducting dispensing orifice 151.
In other words, this catalytic burner 100 is mainly made up 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 Causing, distribution member 15 is provided with multiple dispensing orifice 151 arranged spaced apart, and each dispensing orifice 151 turns on premix chamber 1101 respectively, When combustion gas and air are by distribution member 15, combustion gas and air can be broken up by the multiple dispensing orifices 151 in distribution member 15, thus Make combustion gas be sufficiently mixed with air, it is ensured that combustion gas is consistent with the ratio of air in zones of different, and then make combustion gas with empty The gaseous mixture of gas sufficiently and uniformly burns, it is achieved the catalysis of combustion gas burning, is possible not only to reduce carbon monoxide and nitrogen oxides Discharge, more energy-conserving and environment-protective, and also mitigation of burning, combustion noise are low, and safety is higher.
Alternatively, according to one embodiment of present invention, dispensing orifice 151 is arranged in multi-turn, and often circle includes multiple along distribution The dispensing orifice 151 of the circumferentially spaced layout of part 15.Specifically, distribution member 15 can substantially form circular plate, distribution member 15 Being provided with multi-turn dispensing orifice arranged spaced apart 151, the multiple dispensing orifices 151 often enclosed are along its circumferentially spaced layout, advantageously, Multiple dispensing orifices 151 are evenly arranged, thus ensure that combustion gas can more sufficiently and uniformly mix with air, improve combustion further Gas burns with the catalysis of the gaseous mixture of air.
Advantageously, according to one embodiment of present invention, multiple dispensing orifices 151 are arranged in emitting shape.With reference to Fig. 5, distribution Part 15 is provided with multicomponent distribution 151, and multicomponent distribution 151 is along the circumferentially spaced layout of distribution member 15, multiple points often organized Distribution 151 is radially spaced layout along 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 away from center the second dispensing orifice 151 of distribution member 15 is thinner, combustion gas and air respectively by dispensing orifice 151 in The distribution member 15 that emitting shape is arranged, makes combustion gas and air spread to surrounding from the central position in entering premix chamber 1101, thus enters One step ensures that combustion gas can be sufficiently mixed with air, and then improves the catalysis burning of combustion gas and the gaseous mixture of air, more energy-conservation Environmental protection, is possible not only to reduce carbon monoxide and the discharge of nitrogen oxides, and mitigation of burning, combustion noise are low, and safety is higher.
Additionally, according to one embodiment of present invention, the periphery of distribution member 15 is along being provided with multiple lug 152, distribution member 15 It is detachably connected with burner framework 11 by multiple lugs 152.
Specifically, distribution member 15 forms the circle that shape is consistent with air inlet 1102, and the outside dimension of distribution member 15 is big In the radial dimension equal to air inlet 1102, the periphery of distribution member 15 is along being provided with four lugs along its circumferentially spaced layout 152, each lug 152 extending radially outwardly along distribution member 15, distribution member 15 is by multiple lugs 152 and burner framework 11 It is connected, it is ensured that distribution member 15 and the connection reliability of burner framework 11.
Wherein, as shown in Figure 3 and Figure 4, catalytic burner 100 also includes catalyst converter base 13 and catalyst converter upper cover 14, urges Changing device base 13 be located in burner framework 11 and be positioned at gas outlet 1103, catalyst converter upper cover 14 is located at catalyst converter base 13 Upper and and catalyst converter base 13 between limit the installation cavity for accommodating catalyst converter 12, catalyst converter upper cover 14 has and installation cavity The opening of conducting.
In other words, this catalytic burner 100 is main by burner framework 11, catalyst converter 12, catalyst converter base 13, catalyst converter Upper cover 14 forms, and wherein catalyst converter base 13 is located at the gas outlet 1103 of burner framework 11, the middle part of catalyst converter base 13 Be provided with and premix chamber 1101 conducting base vent mouth, catalyst converter upper cover 14 be located at catalyst converter base 13 top and with catalysis Device base 13 is connected, and the middle part of catalyst converter upper cover 14 is provided with upper cover blow vent, between catalyst converter base 13 and catalyst converter upper cover 14 Limiting the installation cavity for accommodating catalyst converter 12, installation cavity turns on base vent mouth and upper cover blow vent respectively.
Thus, catalyst converter 12 is located between catalyst converter base 13 and catalyst converter upper cover 14 installation cavity limited, permissible Ensure the fixed installation of catalyst converter 12, it is ensured that catalyst converter 12 can play one's part to the full in the catalyticing combustion process of combustion gas.
Alternatively, according to one embodiment of present invention, what catalyst converter base 13 was formed along gas outlet 1103 is circumferentially extending Annular, catalyst converter upper cover 14 is fitted with catalyst converter base 13, is provided with thermal insulation between catalyst converter base 13 and burner framework 11 Sealing gasket 16.Thus, by arranging sealing gasket 16, Ke Yibao between the upper surface of catalyst converter base 13 and burner framework 11 Card sealing therebetween, thus avoid combustion gas in premix chamber 1101 to leak with the gaseous mixture of air, cause 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 provided with Ignition electrode or inductive needle.Specifically, the roof of burner framework 11 is provided with the peace holding high ignition electrode or inductive needle for Anhui group Dress mouth 1104, ignition electrode or inductive needle are arranged adjacent to gas outlet 1103, to realize igniting, make the temperature of the catalyst of catalyst converter 12 Degree reaches preset temperature (initiation temperature), so that the gaseous mixture of combustion gas and air can occur catalysis combustion through preheating section Burn.
Work process below in conjunction with specific embodiment detailed description catalytic burner 100 according to embodiments of the present invention.
As shown in figures 1 and 3, this catalytic burner 100 is main by burner framework 11, catalyst converter 12, catalyst converter base 13, catalyst converter upper cover 14, distribution member 15, sealing gasket 16, ignition electrode/inductive needle composition.
Wherein, in the installing port 1104 of the diapire that ignition electrode/inductive needle portion dress is arranged on burner framework 11, distribution member 15 It is fixed at the air inlet 1102 of burner framework 11, it is achieved combustion gas and the uniform distribution of air mixture, it is ensured that arrive catalysis Combustion gas and the air mixture in each region of device 12 are uniform, it is achieved 12 complete sections of homogenous combustion of catalyst converter.
Catalyst converter 12 is mainly made up of matrix and the catalyst being coated on matrix, and catalyst needs certain initiation temperature Competence exertion catalytic function, it is achieved catalysis burning, therefore catalyst converter 12 is integrated with naked light preheated burning section, makes on catalyst converter 12 Catalyst preheats.
When catalytic burner 100 works, first ignition electrode/inductive needle realizes igniting, thus to the preheating in catalyst converter 12 Catalyst in section heats, until the temperature of catalyst reaches more than 700 DEG C, then air and combustion gas are passed through respectively into QI KOU 1102 enters in premix chamber 1101, and in the process, combustion gas can be entered by the distribution member 15 at air inlet 1102 with air 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 Burn, owing to the temperature of catalyst has reached initiation temperature, therefore can ensure that the catalysis burning of the gaseous mixture of combustion gas and air Persistently carry out, effectively suppress the generation of nitrogen oxides, catalysis ratio of combustion is relatively complete simultaneously, can reduce carbon monoxide in flue gas Content, this catalytic burner 100 use catalysis burning, it is ensured that combustion gas is fully burnt, more energy-conserving and environment-protective, is possible not only to Reduce the discharge (concentration of emission of carbon monoxide and nitrogen oxides is less than 10ppm) of carbon monoxide and nitrogen oxides, and burn Mitigation, combustion noise low (combustion noise is less than 48dB), safety is higher.It is the simple in construction of this catalytic burner 100, compact, Volume is little, uses safety, energy-conserving and environment-protective, and Consumer's Experience is good.
1 to Fig. 6 specifically describes the gas heater A of embodiment according to a second aspect of the present invention below in conjunction with the accompanying drawings.
Gas heater A according to embodiments of the present invention includes the catalytic burner 100 according to above-described embodiment.Due to root According to the catalytic burner 100 of the embodiment of the present invention, there is above-mentioned technique effect, therefore, gas and hot water according to embodiments of the present invention Device A also has the simple in construction of above-mentioned technique effect, i.e. this gas heater A, compact, and each parts connect reliable, are convenient to mount and dismount, Volume is little, and operating noise is low, uses safe and reliable, energy-conserving and environment-protective, and Consumer's Experience is good.
Need exist for explanation, due to the combustion gas in catalysis combustion flame low even flameless combustion, with correlation technique Water heater is compared, and the combustor height of this gas heater A can decline, thus reduces complete machine height, makes gas heater A more Small and exquisite.
In certain specific embodiments of the invention, gas heater A includes housing 200, catalytic burner 100, wind Machine 300, gas ratio valve 400 and heat exchanger 500.Specifically, define in housing 200 receiving chamber 21, housing 200 have into Water interface 22 and water outlet mouthpiece 23, catalytic burner 100 is located in receiving chamber 21, defines premix chamber in catalytic burner 100 1101, catalytic burner 100 has the air inlet 1102 with premix chamber 1101 conducting and gas outlet 1103, sets at gas outlet 1103 Catalyst converter 12, catalyst converter 12 is had to be configured to the sustained combustion when temperature exceedes predetermined temperature and has combustion gas and air supply.
Further, blower fan 300 and air inlet 1102 turn on to carry air, gas ratio valve 400 to premix chamber 1101 Outlet and air inlet 1102 turn on to premix chamber 1101 delivery of fuel gas, heat exchanger 500 be located at burner top and with combustion The connected heat produced with absorption burner burning of burner, heat exchanger 500 has water inlet and outlet, and water inlet connects with water inlet Mouth 22 conducting, outlet turns on water outlet mouthpiece 23.
Specifically, as shown in Figure 6, gas heater A is mainly by housing 200, catalytic burner 100, blower fan 300, combustion gas Proportioning valve 400 and heat exchanger 500 form.Wherein, housing 200 vertically (above-below direction as shown in Figure 6) extends, housing Defining the receiving chamber 21 extended along its length in 200, the bottom of housing 200 is provided with into water interface 22 and water outlet mouthpiece 23, the bottom accommodated in chamber 21 is provided with blower fan 300, and catalytic burner 100 is located at top and the catalytic burner 100 of blower fan 300 The outlet of air inlet 1102 and blower fan 300, gas ratio valve 400 be located at blower fan 300 side 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, and heat exchanger 500 has and enters Water interface 22 conducting water inlet and with water outlet mouthpiece 23 conducting outlet.
Blower fan 300 provides air, gas ratio valve 400 to provide combustion gas, is then passed through venturi pre-mixed configuration and carries out injection After premix, the mixture of combustion gas and air enters catalytic burner 100, after distribution member 15 is distributed, arrives catalytic burner On the catalyst converter 12 of 100, burning after ignition electrode is lighted a fire, the high-temperature flue gas that burning produces and heat exchanger 500 carry out heat Amount exchange, thus the water in heating heat exchanger 500, it is ensured that flow out water heater is hot water, the flue gas warp after heat exchanges Outside after exhaust fume collecting hood 600 is collected, by exhaust opening 61 discharge chamber.
Wherein, the mixture of combustion gas and air combustion process on catalyst converter 12 is: first carry out flaming combustion after igniting, Catalyst converter 12 is preheated, after the temperature of catalyst converter 12 reaches predetermined temperature, changes combustion gas and the flow of air, make burning Mode switches to catalysis burning.
Thus, gas heater A according to embodiments of the present invention, simple in construction, compact, each parts connect reliable, volume Little, combustion gas and air carry out catalysis burning, the carbon monoxide in flue gas after burning and nitrogen oxides in catalytic burner 100 Content less, energy-conserving and environment-protective, use safety, and the mixture combustion of combustion gas and air relax, and advantageously reduces combustion gas heat The operating noise of hydrophone A.The simple in construction of this gas heater A, compact, each parts connect reliable, are convenient to mount and dismount, operating noise Low, use safety, energy-conserving and environment-protective, Consumer's Experience is good.
Other of gas heater A according to embodiments of the present invention constitute and operate for those of ordinary skill in the art For be all known, be not detailed herein.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ", " up time Pin ", " counterclockwise ", " axially ", " radially ", the orientation of the instruction such as " circumferential " or position relationship be based on orientation shown in the drawings or Position relationship, is for only for ease of the description present invention and simplifies description rather than instruction or imply that the device of indication or element must Must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three Individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc. Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral;Can be that machinery connects Connect, it is also possible to be electrical connection or each other can communication;Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, permissible It is connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For this area For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this specification, reference term " embodiment ", " some embodiments ", example ", " specifically show Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office One or more embodiments or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel Close and combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, revises, replaces and modification.

Claims (11)

1. a catalytic burner, it is characterised in that including:
Burner framework, defines premix chamber in described burner frame body, described burner framework has to be led with described premix chamber Logical air inlet and gas outlet;
Catalyst converter, described catalyst converter is located in described burner framework and is positioned at described gas outlet, and described catalyst converter is constructed Become the sustained combustion when temperature exceedes predetermined temperature and has combustion gas and air supply.
Catalytic burner the most according to claim 1, it is characterised in that described catalyst converter includes matrix and is coated in described It is integrated with preheating section on catalyst on matrix, and described catalyst converter.
Catalytic burner the most according to claim 1, it is characterised in that also include that distribution member, described distribution member are located at At described air inlet, described distribution member has dispensing orifice that is multiple arranged spaced apart and that turn on described premix chamber.
Catalytic burner the most according to claim 3, it is characterised in that described dispensing orifice is that multi-turn is arranged, often circle includes The described dispensing orifice of multiple circumferentially spaced layouts along described distribution member.
5. according to the catalytic burner described in claim 4, it is characterised in that multiple described dispensing orifices are that emitting shape is arranged.
Catalytic burner the most according to claim 3, it is characterised in that the periphery of described distribution member is multiple convex along being provided with Ear, described distribution member is detachably connected with described burner framework by multiple described lugs.
Catalytic burner the most according to claim 1, it is characterised in that also include:
Catalyst converter base, described catalyst converter base is located in described burner framework and is positioned at described gas outlet;
Catalyst converter upper cover, described catalyst converter upper cover be located on described catalyst converter base and and catalyst converter base between limit use In the installation cavity of receiving catalyst converter, described catalyst converter upper cover has the opening turned on described installation cavity.
Catalytic burner the most according to claim 7, it is characterised in that described catalyst converter base is formed along described gas outlet Circumferentially extending annular, described catalyst converter upper cover and described catalyst converter base fit, described catalyst converter base and described burning Adiabatic sealing gasket it is provided with between device framework.
Catalytic burner the most according to claim 1, it is characterised in that the neighbouring described gas outlet of described burner framework Position be provided with ignition electrode or inductive needle.
Catalytic burner the most according to claim 2, it is characterised in that described matrix is foam silicon carbide ceramics, described Catalyst is the mixture of modified aluminas, platinum, palladium and ferrum oxide and/or ferrum oxide.
11. 1 kinds of gas heaters, it is characterised in that include burning according to the catalysis according to any one of claim 1-10 Device.
CN201610871287.4A 2016-09-30 2016-09-30 Catalytic burner and gas heater with it Active CN106287708B (en)

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CN109323443A (en) * 2017-07-31 2019-02-12 芜湖美的厨卫电器制造有限公司 Gas 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
CN110772890A (en) * 2018-07-30 2020-02-11 天津大学 Ferroferric oxide-loaded SiC foamed ceramic and preparation method and application thereof
CN111692743A (en) * 2019-03-14 2020-09-22 芜湖美的厨卫电器制造有限公司 Combustion heat exchange equipment
CN111780154A (en) * 2018-01-18 2020-10-16 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
CN112393240A (en) * 2019-08-14 2021-02-23 红热燃烧科技(大连)有限公司 Catalytic flameless burner
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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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
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CN112393240A (en) * 2019-08-14 2021-02-23 红热燃烧科技(大连)有限公司 Catalytic flameless burner
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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