CN106439810B - Combustor and gas heater who has it - Google Patents

Combustor and gas heater who has it Download PDF

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Publication number
CN106439810B
CN106439810B CN201610872515.XA CN201610872515A CN106439810B CN 106439810 B CN106439810 B CN 106439810B CN 201610872515 A CN201610872515 A CN 201610872515A CN 106439810 B CN106439810 B CN 106439810B
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CN
China
Prior art keywords
gas
burner
distribution
divide
combustor
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.)
Active
Application number
CN201610872515.XA
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Chinese (zh)
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CN106439810A (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.)
Midea Group Co Ltd
Wuhu Midea Kitchen and Bath Appliances 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 CN201610872515.XA priority Critical patent/CN106439810B/en
Publication of CN106439810A publication Critical patent/CN106439810A/en
Priority claimed from PCT/CN2017/079171 external-priority patent/WO2018058927A1/en
Application granted granted Critical
Publication of CN106439810B publication Critical patent/CN106439810B/en
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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
    • F23D14/46Details, 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, IN GENERAL
    • F24H9/00Details
    • F24H9/18Arrangement or mounting of grates, burners, or heating elements
    • F24H9/1809Arrangement or mounting of grates, burners, or heating elements for water heaters
    • F24H9/1836Arrangement or mounting of grates, burners, or heating elements for water heaters fluid combustible heating means

Abstract

The invention discloses a burner and a gas water heater with the same, wherein the burner comprises: the combustor comprises a combustor frame body, a premixing cavity is limited in the combustor frame body, and the combustor frame body is provided with a fan interface and a gas interface which are communicated with the premixing cavity; the distribution parts are arranged in the premixing cavity at intervals along the airflow direction, and each distribution part is provided with a plurality of distribution holes communicated with the premixing cavity; divide the gas pole, divide gas pole detachably to establish and to have limited the gas channel in and in premixing the intracavity, divide the gas pole to have the gas import and the gas export that switch on with the gas channel, the gas export switches on with premixing the chamber. The burner provided by the embodiment of the invention has the advantages that the structure is simple, the gas supply is relatively uniform, the mixture of the gas and the air entering each area of the burner is uniformly distributed, the processing and manufacturing cost is low, the waste of the fuel is reduced, the emission of pollutants such as nitrogen oxides and harmful substances such as carbon monoxide, hydrocarbon and tar is reduced, and the space in the premixing cavity is saved.

Description

Combustor and gas heater who has it
Technical Field
The invention relates to the technical field of water heaters, in particular to a burner and a gas water heater with the same.
Background
At present, a water heater becomes a common household appliance in daily life. In the related art, the combustion mode of the water heater is flaming combustion, gas and air are not premixed in the combustion device and are respectively fed into the combustion chamber to be mixed and combusted, the flame generated by combustion is longer and has a bright outline, the gas radiation quantity of the flaming combustion flame is smaller, the convection heat transfer mode is used as the main heat transfer mode, and the energy utilization rate is low due to the fact that the activation energy is higher, the combustion speed is slow, and the combustion is incomplete, so that the thermal efficiency of the combustion is reduced. In addition, in the flame combustion mode, due to the difference of contact between different parts of combustion and air, the combustion completeness and temperature are different, in a high-temperature region, the temperature is high, oxygen and nitrogen in the air react to generate pollutants such as nitrogen oxides, and in a low-temperature region, the combustion is incomplete, and harmful substances such as carbon monoxide, hydrocarbons, tar and the like are generated.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the combustor provided by the invention has the advantages of simple and compact structure, good premixing effect, energy conservation and environmental protection, saves the space of the premixing chamber, and improves the space utilization rate.
The invention also provides a gas water heater with the burner.
A burner according to an embodiment of the first aspect of the invention comprises: the combustor comprises a combustor frame, a gas inlet and a gas outlet, wherein a premixing cavity is defined in the combustor frame, and the combustor frame is provided with a fan interface and a gas interface which are communicated with the premixing cavity; the distribution parts are arranged in the premixing cavity at intervals along the airflow direction, and each distribution part is provided with a plurality of distribution holes communicated with the premixing cavity; divide the gas pole, divide gas pole detachably to establish mix intracavity and interior the injectting has the gas passageway, divide the gas pole have with gas channel switches on's gas import and gas export, the gas export with mix the chamber and switch on in advance.
According to the burner disclosed by the embodiment of the invention, a fire grate structure in the related technology is omitted, a plurality of distribution parts are arranged in the premixing cavity of the burner frame body, and the gas distribution rod is detachably arranged in the premixing cavity, so that a gas outlet on the gas distribution rod is communicated with the premixing cavity, the uniform distribution of mixed gas of gas and air entering each area of the burner can be ensured, the gas is completely combusted, the waste of fuel is reduced, and the emission of pollutants such as nitrogen oxides and harmful substances such as carbon monoxide, hydrocarbon and tar is reduced. Moreover, the secondary air does not need to be supplemented when the mixed gas of the gas and the air is combusted, the space of the premixing cavity is saved, and therefore the occupied space of the combustor is reduced.
In addition, the combustor according to the embodiment of the invention may further have the following additional technical features:
according to one embodiment of the invention, the gas channel extends along the length direction of the gas distributing rod, the gas outlet comprises a plurality of gas outlets, and the gas outlets are arranged at intervals along the length direction of the gas distributing rod.
According to one embodiment of the invention, a plurality of said gas outlets are arranged uniformly and spaced apart along the length of said gas distribution member, each of said gas outlets opening towards said distribution member.
According to an embodiment of the invention, the gas distributing rod forms a ring shape extending in a circumferential direction of the burner frame.
According to one embodiment of the invention, the fan interface is located right below the gas distribution rod and an orthographic projection of the fan interface in a plane of the gas distribution rod is located in an annular area of the gas distribution rod.
According to one embodiment of the invention, the cross-sectional shape of the burner frame forms a rectangle, and the gas distribution rod comprises two oppositely arranged transverse rods and two oppositely arranged longitudinal rods, and the transverse rods and the longitudinal rods are in circular arc transition.
According to one embodiment of the invention each of said distribution members forms a rectangular distribution net corresponding to the shape of said burner frame.
According to one embodiment of the invention, the fan interface and the gas interface are respectively arranged on the bottom wall of the burner frame at intervals, and the gas distributing rod is arranged on the inner surface of the bottom wall of the burner frame.
According to one embodiment of the invention, the distribution member forms a uniformly shaped distribution net, a plurality of the distribution nets are arranged at intervals in the up-down direction, and each distribution net is connected with the inner side wall of the burner frame.
The gas water heater according to the second aspect embodiment of the invention comprises the burner according to the above embodiment.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic view of the internal structure of a burner according to an embodiment of the present invention at an angle;
FIG. 2 is a schematic view of the internal structure of a burner according to an embodiment of the present invention at another angle;
FIG. 3 is a perspective view of a burner according to an embodiment of the present invention;
FIG. 4 is a front view of the structure shown in FIG. 3;
FIG. 5 is a side view of the structure shown in FIG. 3;
fig. 6 is a schematic structural view of a gas distributing rod of a burner according to an embodiment of the present invention.
Reference numerals:
100: a burner;
1: a burner frame; 1 a: a fan interface; 1 b: a gas interface; 1 c: a premix chamber;
2: a dispensing member; 2 a: a dispensing aperture;
21: a first dispensing member; 22: a second dispensing member; 23: a third fitting;
3: a gas distributing rod; 3 a: a gas inlet; 3 b: and a gas outlet.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The combustor 100 according to the embodiment of the first aspect of the present invention is specifically described below with reference to fig. 1 to 6.
The burner 100 according to the embodiment of the present invention includes a burner housing 1, a plurality of distribution members 2, and a gas distribution rod 3. Specifically, a premixing cavity 1c is defined in the burner frame 1, the burner frame 1 is provided with a fan interface 1a and a gas interface 1b communicated with the premixing cavity 1c, a plurality of distribution pieces 2 are arranged in the premixing cavity 1c at intervals along the air flow direction, each distribution piece 2 is provided with a plurality of distribution holes 2a communicated with the premixing cavity 1c, a gas distribution rod 3 is detachably arranged in the premixing cavity 1c and is internally defined with a gas channel, the gas distribution rod 3 is provided with a gas inlet 3a and a gas outlet 3b communicated with the gas channel, and the gas outlet 3b is communicated with the premixing cavity 1 c.
In other words, the burner 100 is mainly composed of the burner housing 1, a plurality of distribution parts 2 and gas distribution rod 3 constitute, it mixes chamber 1c to inject in the combustor frame 1, be provided with fan interface 1a and gas interface 1b on the combustor frame 1, be provided with a plurality of distribution parts 2 in mixing chamber 1c in advance, a plurality of distribution parts 2 are evenly spaced apart along the air current flow direction and are arranged, a plurality of distribution holes 2a have been arranged respectively on every distribution part 2, a plurality of distribution holes 2a and mix chamber 1c intercommunication each other, gas distribution rod 3 detachably sets up in mixing chamber 1c and be located a plurality of distribution parts 2's below, gas channel has been injectd to the inside of gas distribution rod 3, gas channel switches on with gas inlet 3a and gas outlet 3b on gas distribution rod 3 respectively, the gas gets into in gas channel of gas distribution rod 3 by gas inlet 3a, discharge in mixing chamber 1c through gas outlet 3b on the gas distribution rod 3.
Specifically, a fan is connected to a fan interface 1a on the burner frame 1, a gas pipeline is connected to a gas interface 1b, air enters a premixing cavity 1c through the fan (not shown) via the fan, meanwhile, gas enters a gas channel defined by the gas distributing rod 3 via a gas inlet 3a via the gas pipeline, is discharged into the premixing cavity 1c via a plurality of gas outlets 3b, is mixed with the air, passes through a plurality of distribution holes 2a fully distributed on the plurality of distributing parts 2, and the air and the gas are uniformly mixed.
Therefore, according to the burner 100 of the embodiment of the invention, a fire grate structure in the related art is omitted, a plurality of distribution pieces 2 are arranged in the premixing cavity 1c of the burner frame 1, and the gas distribution rod 3 is detachably arranged in the premixing cavity 1c, so that the gas outlet 3b on the gas distribution rod 3 is communicated with the premixing cavity 1c, and the uniform distribution of the mixed gas of gas and air entering each area of the burner 100 can be ensured, thereby realizing the complete combustion of the gas, reducing the waste of fuel, and reducing the emission of pollutants such as nitrogen oxides and harmful substances such as carbon monoxide, hydrocarbon and tar. Moreover, the secondary air does not need to be supplemented to the gas mixture of gas and air when burning, has saved and has premixed chamber 1c space to reduce combustor 100's occupation space, this combustor 100's simple structure, processing, low in manufacturing cost, space utilization is high, and combustion efficiency is high, and user experience is good.
Alternatively, according to an embodiment of the present invention, the gas passage extends along a length direction of the gas distribution rod 3, the gas outlet 3b includes a plurality of gas outlets, and the plurality of gas outlets 3b are arranged at intervals along the length direction of the gas distribution rod 3. Like this, the gas gets into in the gas passageway through the gas import 3a of minute gas pole 3, then flows along the length direction of gas passageway, and in flow process, the gas in the gas passageway is discharged to premixing chamber 1c in through the gas export 3b on minute gas pole 3 to with the air intensive mixing, thereby guarantee the combustion effect of the gas in combustor 100.
Preferably, a plurality of gas outlets 3b are arranged evenly and spaced apart along the length of the gas distribution rod 3, each gas outlet 3b opening towards the distribution member 2.
That is, the plurality of distributing members 2 are respectively filled with a plurality of distributing holes 2a in the longitudinal direction, the plurality of distributing holes 2a are uniformly spaced on each distributing member 2, correspondingly, the gas distributing rod 3 is provided with a plurality of gas outlets 3b which are uniformly spaced along the longitudinal direction, and the opening of each gas outlet 3b is just opposite to the distributing member 2.
Referring to fig. 1 and 2, a gas distributing rod 3 and three distributing members 2, namely a first distributing member 21, a second distributing member 22 and a third distributing member 23 are provided in the premix chamber 1c, wherein the first distributing member 21, the second distributing member 22 and the third distributing member 23 are arranged at intervals in the up-down direction, that is, the second distributing member 22 is located between the first distributing member 21 and the third distributing member 23, the first distributing member 21 is located above the second distributing member 22, the third distributing member 23 is located below the second distributing member 22, the gas distributing rod 3 is provided on the inner surface of the bottom wall of the burner frame 1 and below the third distributing member 23, and a plurality of gas outlets 3b are provided on the top wall of the gas distributing rod 3 such that the openings of the gas outlets 3b face the third distributing member 23.
Alternatively, the distribution holes 2a of the plurality of distributing elements 2 increase progressively from top to bottom in the direction of the gas flow, i.e. the diameter of the distribution holes 2a of the first distributing element 21 situated above is smaller than the diameter of the distribution holes 2a of the second and third distributing elements 22 and 23, and the diameter of the distribution holes 2a of the third distributing element 23 situated below is larger than the diameter of the distribution holes 2a of the second distributing element 22, i.e. the plurality of distributing elements 2 arranged from bottom to top in the premixing chamber 1c, the diameter of the distribution holes 2a of the distributing element 2 situated above being smaller than the diameter of the distribution holes 2a of the distributing element 2 situated below, thus ensuring a uniform and thorough mixing of the air and the gas.
In some embodiments of the invention, the gas distribution rod 3 forms a ring shape extending in the circumferential direction of the burner frame 1. Specifically, as shown in fig. 1 and 3, the gas distributing rod 3 is disposed in the premixing chamber 1c and located below the distributing member 2, the gas distributing rod 3 is annularly distributed along the circumferential direction of the burner frame 1, and when the gas is discharged from the plurality of gas outlets 3b on the gas distributing rod 3, the gas is uniformly distributed around the bottom in the premixing chamber 1c, which is beneficial to being fully mixed with the air.
Preferably, the fan interface 1a is located right below the gas distribution rod 3 and an orthographic projection of the fan interface 1a in a plane of the gas distribution rod 3 is located in an annular area of the gas distribution rod 3.
Referring to fig. 1 and 2, a blower interface 1a is disposed on the bottom wall of a burner frame 1, a gas distributing rod 3 is disposed on the inner surface of the bottom wall of the burner frame 1 and between the blower interface 1a and a distributing member 2, the blower interface 1a is disposed right below the gas distributing rod 3, and the blower interface 1a is disposed in an annular region defined by the gas distributing rod 3, that is, the blower interface 1a is disposed right in the middle of the annular region of the gas distributing rod 3, air entering through the blower interface 1a diffuses from the middle to the periphery and then is primarily mixed with gas exiting through a plurality of gas outlets 3b, which provides an advantage for further complete mixing through a plurality of distributing members 2.
Alternatively, the cross-sectional shape of the burner frame 1 forms a rectangle, and the gas distribution rod 3 comprises two oppositely arranged transverse rods and two oppositely arranged longitudinal rods, and the transverse rods and the longitudinal rods are in circular arc transition.
Specifically, as shown in fig. 1 to 4, the cross section of the burner housing 1 has a rectangular shape, and the gas distributing rod 3 has a substantially rectangular ring shape corresponding to the shape of the burner housing 1.
As shown in fig. 5, the gas distributing rod 3 is mainly composed of two transverse rods (not shown) arranged oppositely and two longitudinal rods (not shown) arranged oppositely, the length of each transverse rod is larger than that of each longitudinal rod, the joints of the transverse rods and the longitudinal rods are in arc transition, an annular gas channel extending along the circumferential direction of each transverse rod is defined in the gas distributing rod 3, a plurality of gas outlets 3b are distributed on the gas distributing rod 3, the gas outlets 3b are uniformly and alternately arranged on the upper surface of the gas distributing rod 3, the gas enters the gas channel from the gas inlets 3a and is discharged through the gas outlets 3b, the gas supply is ensured to be uniform, and a precondition is provided for uniform mixing of air and gas.
Therefore, the gas distributing rod 3 is simple in structure and attractive in appearance, the gas distributing rod 3 is formed into a rectangular ring shape corresponding to the shape of the combustor frame 1, gas can be conveyed to each area in the premixing cavity 1c, the gas and air are fully and uniformly mixed, and the combustion efficiency of fuel is improved.
Advantageously, each distribution element 2 forms a rectangular distribution network corresponding to the shape of the burner casing 1.
Referring to fig. 1 and 2, the burner housing 1 has a substantially rectangular cross section, and the plurality of distribution members 2 distributed in the premix chamber 1c form a distribution network corresponding to the cross section of the burner housing 1, and the plurality of distribution networks are parallel to the bottom wall surface of the burner housing 1, thereby further ensuring uniform mixing of air and gas.
In some embodiments of the present invention, the blower interface 1a and the gas interface 1b are respectively disposed at a distance from the bottom wall of the burner housing 1, and the gas distributing rod 3 is provided on the inner surface of the bottom wall of the burner housing 1.
As shown in fig. 1, a fan interface 1a and a gas interface 1b are disposed on a bottom wall of a burner frame 1, the fan interface 1a and the gas interface 1b are distributed at intervals on the bottom wall, the fan interface 1a is connected with a fan pipeline (not shown), air enters a premixing cavity 1c through the fan interface 1a by the fan pipeline, the gas interface 1b is connected with the gas pipeline, gas enters a gas distributing rod 3 through the gas interface 1b by the gas pipeline, the gas distributing rod 3 is detachably arranged on an inner surface of the bottom wall of the burner frame 1, and when maintenance is required, the gas distributing rod 3 can be detached from the bottom wall of the burner frame 1.
Preferably, the distribution member 2 forms a uniformly shaped distribution net, a plurality of distribution nets are arranged at intervals in the up-down direction and each distribution net is connected to the inner side wall of the burner frame 1.
In other words, the shapes of the distribution members 2 are kept consistent, that is, the distribution members 2 form rectangular distribution nets with the same size, the distribution nets are arranged in the premixing cavity 1c and are arranged at intervals in the vertical direction, the peripheries of the distribution nets are fixedly connected with the inner side wall of the combustor frame 1, for example, each distribution net and the inner wall of the combustor frame 1 can adopt a fixing mode such as welding, screw connection, clamping groove type and the like, the size, distance, row number and the like of the distribution nets can be adjusted according to actual conditions, and the distribution nets are parallel to the bottom wall surface of the combustor 100, so that air and fuel gas can be mixed uniformly.
The burner 100 according to the embodiment of the present invention may be a catalytic burner, a metal mesh burner, a honeycomb ceramic burner, etc., air and gas enter the premixing chamber 1c to be mixed, and then the mixture of the gas and the air passes through the multilayer distribution network in sequence, after being distributed by the distribution network, the gas and the air of the burner 100 are mixed more uniformly, and the uniform mixture after passing through the multilayer distribution network reaches the firing end of the burner 100 to be burned.
Therefore, the burner 100 of the embodiment of the present invention cancels the fire grate structure in the related art, and adopts a plurality of distribution net structures and the annular gas distribution rods 3, so as to ensure that the gas and the air in each region are uniformly mixed, to realize the full premixing of the air and the gas, without the supply of secondary air, and to simplify the structure of the burner 100, thereby reducing the volume of the burner 100, realizing the light weight of the burner 100, improving the combustion efficiency of the gas in the burner 100, and reducing the emission of toxic gases.
The premixing process of air and gas of the burner 100 according to the embodiment of the present invention will be described with reference to specific embodiments.
As shown in fig. 1, the burner 100 is mainly composed of a burner housing 1, a plurality of distribution nets, and an annular gas distribution rod 3. Wherein, a premixing cavity 1c is defined in the burner frame 1, a fan interface 1a and a gas interface 1b are arranged on the bottom wall of the burner frame 1 at intervals, a plurality of distribution nets are arranged in the premixing cavity 1c at intervals along the up-down direction of the premixing cavity 1c, and a plurality of distribution holes 2a are fully distributed on each distribution net.
Further, a gas channel is defined in the annular gas distribution rod 3, a gas inlet 3a and a plurality of gas outlets 3b arranged along the circumferential direction of the annular gas distribution rod 3 are arranged on the annular gas distribution rod 3, the gas inlet 3a and the plurality of gas outlets 3b are respectively communicated with the gas channel, the annular gas distribution rod 3 is detachably arranged on the inner surface of the bottom of the combustor frame 1 and is positioned below the distribution net, and the opening of each gas outlet 3b of the annular gas distribution rod 3 is right opposite to the distribution part 2.
The gas gets into in the gas passageway that divides gas pole 3 to inject through gas interface 1b, arranges to in the premix chamber 1c through a plurality of gas export 3b on the gas pole 3, and in the air got into premix chamber 1c through fan interface 1a by the fan simultaneously, the annular region that the air was injectd by the gas pole 3 is by dividing to the air is to diffusing all around to with distributing gas around and carrying out preliminary mixing, pass a plurality of distribution net until complete mixing again, air and gas after the complete mixing reach the catalyst converter, begin the burning when the temperature exceedes predetermined temperature.
From this, through set up a plurality of accessories 2 in the premixing chamber 1c at combustor frame 1, and detachably is provided with branch gas pole 3 in premixing chamber 1c, make the gas export 3b on the branch gas pole 3 switch on with premixing chamber 1c, the gas that can guarantee to get into each region of combustor 100 can distribute evenly with the gas mixture of air, thereby make the gas realize complete combustion, the waste of fuel has been reduced, pollutant and carbon monoxide such as nitrogen oxide, the emission of harmful substance such as hydrocarbon and tar, this combustor 100's simple structure, processing, low in manufacturing cost, space utilization is high, combustion efficiency is high, user experience is good.
A gas water heater (not shown) according to an embodiment of the second aspect of the present invention comprises a burner 100 according to the above-described embodiment. Because the burner 100 according to the embodiment of the present invention has the above technical effects, the gas water heater according to the embodiment of the present application also has the above technical effects, i.e., simple and compact structure, small occupied space, good premixing effect, high working effect, safety, environmental protection, and low cost.
In some embodiments of the invention, a gas water heater comprises: a housing (not shown), a catalytic burner 100, a fan, a gas proportioning valve (not shown), and a heat exchanger (not shown).
Specifically, a containing cavity is defined in the shell, the shell is provided with a water inlet interface (not shown) and a water outlet interface (not shown), the catalytic combustor 100 is arranged in the containing cavity, a premixing cavity 1c is defined in the catalytic combustor 100, the catalytic combustor 100 is provided with a fan interface 1a and a gas interface 1b communicated with the premixing cavity 1c, a catalyst is arranged in the catalytic combustor 100 and is configured to continuously burn when the temperature exceeds a preset temperature and gas and air are supplied, the fan is communicated with the fan interface 1a to convey air to the premixing cavity 1c, an outlet of the gas proportional valve is communicated with the gas interface 1b to convey gas to the premixing cavity 1c, a heat exchanger is arranged in the shell and is connected with the combustor 100 to absorb heat generated by combustion of the combustor 100, the heat exchanger is provided with a water inlet (not shown) and a water outlet (not shown), the water inlet is communicated with the water inlet interface, the water outlet is communicated with the water outlet interface.
That is to say, a containing cavity is defined in the shell, a catalytic combustor 100 is arranged in the containing cavity, a premixing cavity 1c is defined in the catalytic combustor 100, a catalyst is arranged in the catalytic combustor 100, the heat exchanger is arranged in the shell and connected with the combustor 100, gas enters a gas channel defined by the gas distributing rod 3 through the gas interface 1b from the outlet by the gas proportional valve, is discharged out of the premixing cavity 1c through the gas outlets 3b on the gas distributing rod 3, meanwhile, air enters the premixing cavity 1c through the fan interface 1a by the fan, diffuses around from an annular area defined by the gas distributing rod 3, is primarily mixed with the gas, passes through the distribution nets until the gas is completely mixed, the completely mixed air and gas reach the catalyst, and starts to burn when the temperature exceeds the preset temperature.
Meanwhile, the water inlet interface of the housing is connected with a water inlet pipe (not shown), the water outlet interface is connected with a water outlet pipe (not shown), the cold water inlet end of the water inlet pipe can be communicated with a tap water pipe, tap water enters the heat exchanger from the water inlet pipe, absorbs heat generated by combustion of the burner 100 absorbed by the heat exchanger and then becomes hot water, and the hot water flows out from the hot water outlet end of the water outlet pipe for users to use.
Advantageously, an ignition needle or a sensing needle (not shown) is provided at a position adjacent to the air outlet of the burner housing 1, and when the temperature exceeds a predetermined temperature, the completely mixed air and gas are supplied at the same time, so that catalytic combustion is realized, and certain conditions are provided for combustion of the catalyst.
Optionally, the heat exchanger is arranged above the catalytic combustor 100, heat exchange is performed between high-temperature flue gas generated by catalytic combustion of the combustor 100 and the heat exchanger located above the catalytic combustor 100, cold water in the heat exchanger absorbs heat to become hot water, and the hot water flows out from the water outlet for users to use, so that energy waste is reduced, and the heat utilization rate is high.
Other constructions and operations of the burner 100 and the gas water heater according to the embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (7)

1. A burner, comprising:
the combustor comprises a combustor frame, a gas inlet and a gas outlet, wherein a premixing cavity is defined in the combustor frame, and the combustor frame is provided with a fan interface and a gas interface which are communicated with the premixing cavity;
the distribution parts are arranged in the premixing cavity at intervals along the airflow direction, and each distribution part is provided with a plurality of distribution holes communicated with the premixing cavity;
divide the gas pole, divide gas pole detachably to establish in advance mix intracavity and interior the injecture and have the gas passageway, divide the gas pole have with gas import and the gas export that the gas passageway switched on, the gas export with mix the chamber in advance and switch on, the gas passageway is followed divide the length direction of gas pole to extend, the gas export includes a plurality ofly, and is a plurality of the gas export is followed divide the length direction interval of gas pole to arrange, divide the gas pole to form to follow the annular of the circumference extension of combustor framework, the fan interface is located divide the gas pole under just the fan interface is in divide the orthographic projection of gas pole place plane to be located divide the annular region of gas pole in, divide the gas pole to include two relative arrangement's transverse rod and two relative arrangement's longitudinal rod.
2. The burner of claim 1, wherein a plurality of said gas outlets are uniformly and spaced along the length of said gas distribution stem, each of said gas outlets opening toward said distribution member.
3. The burner of claim 1, wherein the cross-sectional shape of the burner frame forms a rectangle, and the transverse rods are radiused to the longitudinal rods.
4. A burner as claimed in claim 3, wherein each of said distribution members forms a rectangular distribution network corresponding in shape to said burner frame.
5. The burner of claim 1, wherein the fan port and the gas port are spaced apart from each other and disposed in a bottom wall of the burner frame, and the gas distribution rod is disposed on an inner surface of the bottom wall of the burner frame.
6. The burner of claim 5, wherein the distribution member forms a uniformly shaped distribution network, a plurality of the distribution networks being spaced apart in an up-down direction and each of the distribution networks being connected to an inner sidewall of the burner frame.
7. A gas water heater comprising a burner according to any one of claims 1 to 6.
CN201610872515.XA 2016-09-30 2016-09-30 Combustor and gas heater who has it Active CN106439810B (en)

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WO2018058927A1 (en) * 2016-09-30 2018-04-05 芜湖美的厨卫电器制造有限公司 Burner and gas water heater having same
CN110500582A (en) * 2019-08-29 2019-11-26 江苏闳业机械股份有限公司 A kind of uniform burning fire row of fire out

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CN2859233Y (en) * 2006-01-23 2007-01-17 裕富宝厨具设备(深圳)有限公司 Premixing burner
CN201706494U (en) * 2010-06-25 2011-01-12 南京碳环生物质科技有限公司 Gas burner
CN206055624U (en) * 2016-09-30 2017-03-29 芜湖美的厨卫电器制造有限公司 Burner and the gas heater with which

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CN2859233Y (en) * 2006-01-23 2007-01-17 裕富宝厨具设备(深圳)有限公司 Premixing burner
CN201706494U (en) * 2010-06-25 2011-01-12 南京碳环生物质科技有限公司 Gas burner
CN206055624U (en) * 2016-09-30 2017-03-29 芜湖美的厨卫电器制造有限公司 Burner and the gas heater with which

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