CN108006632B - Combustor and gas water heater with same - Google Patents
Combustor and gas water heater with same Download PDFInfo
- Publication number
- CN108006632B CN108006632B CN201611062639.8A CN201611062639A CN108006632B CN 108006632 B CN108006632 B CN 108006632B CN 201611062639 A CN201611062639 A CN 201611062639A CN 108006632 B CN108006632 B CN 108006632B
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- China
- Prior art keywords
- combustion
- thick
- thin
- burning
- light
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000002485 combustion reaction Methods 0.000 claims abstract description 560
- 238000002347 injection Methods 0.000 claims abstract description 110
- 239000007924 injection Substances 0.000 claims abstract description 110
- 239000007789 gas Substances 0.000 claims abstract description 67
- 230000001105 regulatory effect Effects 0.000 claims abstract description 18
- 239000002737 fuel gas Substances 0.000 claims description 25
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 63
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 15
- 239000003546 flue gas Substances 0.000 abstract description 15
- 238000004378 air conditioning Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 7
- 239000000567 combustion gas Substances 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/60—Devices for simultaneous control of gas and combustion air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- 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)
- Gas Burners (AREA)
Abstract
The invention discloses a combustor and a gas water heater with the same, wherein the combustor comprises at least one combustion unit, a primary air adjusting plate and a secondary air adjusting plate, the combustion unit comprises a combustor shell and a rectifying device, a first thick combustion cavity, a second thick combustion cavity and a thin combustion cavity are arranged in the combustor shell, and a thick combustion injection inlet, a thin combustion injection inlet, a first thick combustion flame opening, a second thick combustion flame opening and a thin combustion opening are arranged on the combustor shell; the rectifying device is arranged in the light combustion opening, and the primary air adjusting plate is arranged at the front sides of the thick combustion injection inlet and the light combustion injection inlet so as to adjust the air injection quantity. The secondary air regulating plate is arranged below the combustion unit, and the primary air regulating plate extends downwards and defines a pressure equalizing chamber with the secondary air regulating plate. According to the burner provided by the embodiment of the invention, the structural stability of the burning flame can be improved, and the emission of nitrogen oxides in the flue gas can be reduced.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a combustor and a gas water heater with the same.
Background
People pay more and more attention to air pollution. All industries respond to the call of the country to save energy and reduce emission. The gas water heater is more and more popular because of the rapid development of town gas. In the existing gas water heater, harmful gas is generated due to the fact that the combustion of the gas is unavoidable, and particularly the content of nitrogen oxides in the flue gas is high, so that the environmental pollution is serious.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the invention provides the combustor which can reduce the emission of nitrogen oxides in the flue gas and reduce the environmental pollution.
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 at least one combustion unit comprising: the burner comprises a burner shell, wherein the burner shell is internally provided with a first thick combustion cavity, a second thick combustion cavity and a thin combustion cavity, and the burner shell is provided with a thick combustion injection inlet communicated with the first thick combustion cavity and the second thick combustion cavity, a thin combustion injection inlet communicated with the thin combustion cavity, a first thick combustion flame port communicated with the first thick combustion cavity, a second thick combustion flame port communicated with the second thick combustion cavity and a thin combustion opening communicated with the thin combustion cavity; the rectifying device is arranged in the light combustion opening, a plurality of light combustion flame ports communicated with the light combustion cavity are arranged on the rectifying device, and the first thick combustion flame ports and the second thick combustion flame ports are respectively positioned on two sides of the plurality of light combustion flame ports;
And the primary air adjusting plate is arranged at the front sides of the thick combustion ejector inlet and the thin combustion ejector inlet so as to adjust the air ejection quantity. And the secondary air adjusting plate is arranged below the combustion unit, and the primary air adjusting plate extends downwards and defines a pressure equalizing chamber with the secondary air adjusting plate.
Therefore, according to the burner provided by the embodiment of the invention, the first thick combustion flame port and the second thick combustion flame port of the combustion unit are respectively positioned at two sides of the plurality of thin combustion flame ports so as to form the stable flame structure with thin combustion flame in the middle and thick combustion flame at two sides, thereby achieving the purposes of reducing the flame temperature and controlling the emission of nitrogen oxides in the flue gas after combustion.
And the primary air adjusting plate is arranged at the front sides of the thick combustion injection inlet and the thin combustion injection inlet so as to adjust the air injection quantity. The secondary air regulating plate is arranged below the combustion unit, and the primary air regulating plate extends downwards and defines a pressure equalizing chamber with the secondary air regulating plate. Like this, the air that the air-blower of burning water heater produced draws the entry through the pressure-equalizing chamber flow direction to thick burning and draws the entry with thin burning and draw the entry for get into thick burning draw the entry and draw the primary air quantity that the entry draws the entry with thin burning more even, with the structural stability of further control burning flame, with the improvement combustion effect, reduce the emission of nitrogen oxide.
In addition, the burner according to the embodiment of the present invention may have the following additional technical features:
According to some embodiments of the invention, a first blind path and a second blind path are respectively defined between the rectifying device and two side walls of the light combustion opening, the first blind path is located between the first thick combustion flame port and the plurality of light combustion flame ports, and the second blind path is located between the second thick combustion flame port and the plurality of light combustion flame ports.
According to some embodiments of the invention, the maximum width of the light combustion flame port is W3, and the height of the rectifying device is H, wherein W3/h=0.03 to 0.30.
According to some embodiments of the present invention, the ratio of the theoretical air amount of complete combustion of the gas to the gas amount is Φ S, and the mixing ratio of the air amount of the concentrated combustion injection inlet and the gas amount is Φ R, wherein Φ R/ΦS =0.5 to 0.8.
According to some embodiments of the present invention, the ratio of the theoretical air amount of complete combustion of the gas to the gas amount is Φ S, and the mixing ratio of the air amount of the lean combustion injection inlet and the gas amount is Φ L, wherein Φ L/ΦS =1.5 to 2.0.
According to some embodiments of the invention, the burner housing comprises: the first light combustion shell part is connected with the second light combustion shell part and jointly defines the light combustion cavity and the light combustion opening, and the rectifying device is arranged between the first light combustion shell part and the second light combustion shell part and is positioned at the light combustion opening; first thick burning shell portion and second thick burning shell portion, first thick burning shell portion with first thin burning shell portion links to each other and is located the outside of first thin burning shell portion, first thick burning shell portion with first thin burning shell portion defines jointly first thick burning chamber with first thick burning flame port, second thick burning shell portion with second thin burning shell portion links to each other and is located the outside of second thin burning shell portion, second thick burning with second thin burning shell portion defines jointly second thick burning chamber with second thick burning flame port.
Optionally, the burner housing further comprises: the two ends of each connecting sheet are respectively connected with the first thick combustion shell part and the second thick combustion shell part, and the connecting sheets divide each of the first thick combustion flame port, the second thick combustion flame port and the thin combustion flame port into a plurality of sections.
Optionally, the burner housing comprises: the light combustion ejector is connected with the first light combustion shell part and the second light combustion shell part, and the light combustion ejection inlet is arranged on the light combustion ejector; the thick burning ejector is connected with the first thick burning shell part and the second thick burning shell part and is communicated with the first thick burning cavity and the second thick burning cavity, the thick burning ejector is positioned above the thin burning ejector, and the thick burning ejection inlet is formed in the thick burning ejector.
According to some embodiments of the invention, the combustion unit further comprises: the thick combustion nozzle is used for providing fuel gas for the thick combustion injection inlet and corresponds to the thick combustion injection inlet; and the light combustion nozzle is used for providing fuel gas for the light combustion injection inlet and corresponds to the light combustion injection inlet.
Optionally, the cross-sectional area S3 of the gas jet of the thick combustion nozzle and the cross-sectional area S4 of the gas jet of the thin combustion nozzle satisfy: s3/s4=0.25 to 0.65.
According to some embodiments of the invention, the combustion unit is a plurality of combustion units and is arranged along a width direction of the combustion unit.
According to a second aspect of the present invention, a gas water heater having the burner of the above embodiment is provided.
The burner according to the embodiment of the invention has the technical effects, so that the gas water heater according to the embodiment of the invention also has the technical effects, namely, the burner according to the embodiment of the invention can improve the stability of flame structure, reduce the temperature of burning flame and reduce the emission of nitrogen oxides in the flue gas of the gas water heater.
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 an angle configuration of a combustion unit of a burner according to an embodiment of the present invention;
FIG. 2 is a schematic view of another angle of a combustion unit of a burner according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a top view of a combustion unit of a combustor according to an embodiment of the invention;
FIG. 5 is an exploded view of a combustion unit of a burner according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a combustion unit of a burner according to another embodiment of the present invention;
FIG. 7 is a cross-sectional view taken along line B-B in FIG. 6;
FIG. 8 is an enlarged view of portion C of FIG. 7;
FIG. 9 is a schematic structural view of a burner according to an embodiment of the present invention;
FIG. 10 is a cross-sectional view in a vertical direction of a burner according to an embodiment of the present invention;
FIG. 11 is a cross-sectional view in a horizontal direction of a burner according to an embodiment of the present invention;
fig. 12 is a sectional view taken along line D-D in fig. 11.
Reference numerals:
100: a burner;
1: a combustion unit;
11: burner housing, 111: first rich combustion casing section 1111: first rich combustion chamber, 112: second rich combustion casing portion, 1121: second rich combustion chamber, 113: first lean burn shell portion, 114: second lean burn shell portion, 1141: light combustion chamber, 115: light combustion opening, 116: first blind road, 117: second blind mate, 118: first rich burner port, 119: a second rich burner port;
12: lean burn ejector, 121: a lean combustion injection inlet;
13: concentrated combustion ejector, 131: a rich combustion injection inlet;
14: rectifying device, 141: a light combustion flame port;
15: a rich combustion nozzle;
16: a light combustion nozzle;
17: a connecting sheet;
2: primary air conditioning panel, 21: a pressure equalizing chamber;
3: and a secondary air adjusting plate.
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 by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
A burner 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings;
as shown in connection with fig. 1-12, a burner 100 according to an embodiment of the present invention may include at least one combustion unit 1, each combustion unit 1 including a burner 100 housing 11, a fairing 14, a primary air conditioning plate 2, and a secondary air conditioning plate 3.
The burner 100 comprises a first thick combustion chamber 1111, a second thick combustion chamber 1121 and a thin combustion chamber 1141 in a shell 11, a thick combustion injection inlet 131 communicated with the first thick combustion chamber 1111 and the second thick combustion chamber 1121, a thin combustion injection inlet 121 communicated with the thin combustion chamber 1141, a first thick combustion flame port 118 communicated with the first thick combustion chamber 1111, a second thick combustion flame port 119 communicated with the second thick combustion chamber 1121 and a thin combustion opening 115 communicated with the thin combustion chamber 1141 are arranged on the shell 11 of the burner 100, a rectifying device 14 is arranged in the thin combustion opening 115, a plurality of thin combustion flame ports 141 communicated with the thin combustion chamber 1141 are arranged on the rectifying device 14, and the first thick combustion flame port 118 and the second thick combustion flame port 119 are respectively positioned on two sides of the plurality of thin combustion flame ports 141.
In other words, the burner 100 may include one or more combustion units 1, for example, the burner 100 may include a plurality of combustion units 1, the plurality of combustion units 1 being disposed side by side and arranged in the width direction of the combustion units 1. The width direction is the left-right direction as shown in fig. 5 and 7. Each combustion unit 1 comprises a burner 100 housing 11 and a fairing 14, the fairing 14 being provided within the burner 100 housing 11.
The first thick combustion chamber 1111, the second thick combustion chamber 1121 and the thin combustion chamber 1141 are defined in the casing 11 of the burner 100, and the thick combustion injection inlet 131, the thin combustion injection inlet 121, the first thick combustion flame port 118, the second thick combustion flame port 119 and the thin combustion opening 115 are formed in the casing 11 of the burner 100, the thick combustion injection inlet 131 is used for introducing air for thick combustion, the thin combustion injection inlet 121 is used for introducing air for thin combustion, and the thick combustion injection inlet 131 is located above the thin combustion injection inlet 121 as shown in fig. 1-3 and 6.
The rich combustion injection inlet 131 is respectively communicated with a first rich combustion cavity 1111 and a second rich combustion cavity 1121, the first rich combustion cavity 1111 is communicated with a first rich combustion flame port 118, the second rich combustion cavity 1121 is communicated with a second rich combustion flame port 119, the light combustion injection inlet 121 is communicated with a light combustion cavity 1141, and the light combustion cavity 1141 is communicated with a light combustion opening 115.
Thus, air is introduced from the rich combustion injection inlet 131 and mixed with the fuel gas to form a rich combustion gas, and the mixed rich combustion gas can enter the first rich combustion chamber 1111 and the second rich combustion chamber 1121, respectively, and is led to the first rich combustion flame port 118 and the second rich combustion flame port 119, respectively. The air introduced from the lean combustion injection inlet 121 is mixed with the fuel gas to form lean combustion gas, and flows into the lean combustion chamber 1141. As shown in fig. 5 to 8, the rectifying device 14 is disposed in the light combustion opening 115, and a plurality of light combustion flame ports 141 are disposed on the rectifying device 14, and the light combustion chamber 1141 is respectively communicated with the plurality of light combustion flame ports 141, and the light combustion gas can be led to the plurality of light combustion flame ports 141.
As shown in fig. 4, 5, 7 and 8, the first thick flame port 118 and the second thin flame port 141 are respectively disposed at both sides of the thin flame port 115, and the plurality of thin flame ports 141 are disposed between the first thick flame port 118 and the second thick flame port 119, so that a structure with the thin flame port 141 in the middle and the thick flame ports at both sides is formed at the top end of each combustion unit 1. That is, the combustion unit 1 can form a flame structure of middle light flame and two side thick flame during combustion, thereby improving the stability of flame, reducing the temperature of combustion flame and achieving the purpose of controlling the emission of nitrogen oxides in flue gas.
As shown in fig. 9 to 12, a primary air conditioning plate 2 is provided on the front side of the rich combustion injection inlet 131 and the lean combustion injection inlet 121 to condition the air injection amount. Thereby, the amount of air introduced into the rich combustion injection inlet 131 and the lean combustion injection inlet 121 can be adjusted by the primary air adjusting plate 2, thereby further controlling the ratio of the amount of air and the amount of fuel of the rich combustion injection inlet 131 and the ratio of the amount of air and the amount of fuel of the lean combustion injection inlet 121.
The secondary air regulating plate 3 is provided below the combustion unit 1, and the primary air regulating plate extends downward and defines a pressure equalizing chamber 21 with the secondary air regulating plate 3. Specifically, the primary air adjusting plate 2 is arranged at the front side of the thick combustion injection inlet 131 and the thin combustion injection inlet 121 to adjust the air injection amount, the secondary air adjusting plate 3 is arranged below the combustion unit 1 to adjust the air amount of the combustion chamber, the lower end of the primary air adjusting plate 2 extends downwards and defines a pressure equalizing chamber 21 with the secondary air adjusting plate 3, and thus, air generated by a blower of the combustion water heater flows to the thick combustion injection inlet 131 and the thin combustion injection inlet 121 through the pressure equalizing chamber 21, so that the primary air amount entering the thick combustion injection inlet 131 and the thin combustion injection inlet 121 is more uniform, and the combustion effect is improved.
Thus, according to the burner 100 of the embodiment of the present invention, the first thick combustion flame port 118 and the second thick combustion flame port 119 of the combustion unit 1 are respectively located at two sides of the plurality of thin combustion flame ports 141, so as to form a stable flame structure with thin combustion flame in the middle and thick combustion flame at two sides, thereby achieving the purposes of reducing flame temperature and controlling emission of nitrogen oxides in flue gas after combustion.
And the primary air conditioning plate 2 is provided on the front side of the rich combustion injection inlet 131 and the lean combustion injection inlet 121 to condition the air injection amount. The secondary air regulating plate 3 is provided below the combustion unit 1, and the primary air regulating plate 2 extends downward and defines a pressure equalizing chamber 21 with the secondary air regulating plate 3. Thus, the air generated by the blower of the combustion water heater flows through the pressure equalizing chamber 21 to the rich combustion injection inlet 131 and the lean combustion injection inlet 121, the primary air quantity entering the thick combustion injection inlet 131 and the thin combustion injection inlet 121 is more uniform, so that the structural stability of combustion flame is further controlled, the combustion effect is improved, and the emission of nitrogen oxides is reduced.
In some embodiments of the present invention, the rectifying device 14 and two sidewalls of the light combustion opening 115 may define a first blind path 116 and a second blind path 117 therebetween, the first blind path 116 being located between the first thick combustion port 118 and the plurality of light combustion ports 141, and the second blind path 117 being located between the second thick combustion port 119 and the plurality of light combustion ports 141. As shown in fig. 7 and 8, the rectifying device 14 is disposed in the light combustion opening 115 and connected to two sidewalls of the light combustion opening 115, and defines a first blind road 116 and a second blind road 117 with the two sidewalls, respectively, and neither the first blind road 116 nor the second blind road 117 is in communication with the light combustion chamber 1141. The first concentrated combustion flame port 118 and the plurality of light combustion flame ports 141 can be separated by the first blind sidewalk 116, and the second concentrated combustion flame port 119 and the plurality of light combustion flame ports 141 can be separated by the second blind sidewalk 117, so that the flame structure is more stable, and the emission of nitrogen oxides in the flue gas can be effectively controlled.
Alternatively, as shown in fig. 8, the top surface of the outer side wall of the first blind road 116 is flush with the top surface of the outer side wall of the second blind road 117 and higher than the top surface of the rectifying device 14, the top surface of the outer side wall of the first thick combustion port 118 is flush with the top surface of the outer side wall of the second thick combustion port 119 and higher than the top surface of the outer side wall of the first blind road 116 and the top surface of the outer side wall of the second blind road 117, the difference in height between the top surface of the outer side wall of the first blind road 116 and the top surface of the outer side wall of the second blind road 117 and the top surface of the rectifying device 14 is H1, and the difference in height between the top surface of the outer side wall of the first thick combustion port 118 and the top surface of the outer side wall of the second thick combustion port 119 and the top surface of the rectifying device 14 is H2, wherein H2 is equal to or greater than H1. Thereby facilitating control of the air flow stability of the thick and thin combustion ports 141 and further improving the stability of the combustion flame.
Preferably, H2 and H1 may satisfy H2 > H1, so that flame stability when the light combustion port 141 and the thick combustion port are combusted may be further ensured to reduce emission of nitrogen oxides in the flue gas.
Advantageously, as shown in FIG. 8, the maximum width of the first blind via 116 and the maximum width of the second blind via 117 may be equal and W2, and the maximum width of the first rich burner port 118 and the maximum width of the second rich burner port 119 may be equal and W1, wherein W2 is equal to or greater than W1. Thereby further ensuring the structural stability of the combustion flame. Specifically, as shown in fig. 7 and 8, the maximum width of the first thick combustion port 118, that is, the maximum narrow side width of the first thick combustion port 118 in the left-right direction, and the maximum width of the second thick combustion port 119, that is, the maximum narrow side width of the second thick combustion port 119 in the left-right direction. The maximum width of the first blind road 116 and the maximum width of the second blind road 117, that is, the maximum narrow side widths of the first blind road 116 and the second blind road 117 in the left-right direction. The maximum narrow side widths of the first blind sidewalk 116 and the second blind sidewalk 117 are equal to each other and W2, the maximum narrow side widths of the first thick combustion flame port 118 and the second thick combustion flame port 119 are equal to each other and W1, and the maximum narrow side widths W2 of the first blind sidewalk 116 and the second blind sidewalk 117 are equal to or greater than the maximum narrow side widths W1 of the first thick combustion flame port 118 and the second thick combustion flame port 119.
In some embodiments of the present invention, the maximum width of the light flame port 141 may be W3, and the height of the rectifying device 14 may be H, wherein W3/h=0.03 to 0.30. Specifically, as shown in fig. 4 and 5, the rectifying device 14 may include a plurality of rectifying plates between which a plurality of slit-type passages are formed, and a plurality of light combustion flame ports 141 are formed at the top end of each slit-type passage, wherein a maximum width W3 of the light combustion flame ports 141, that is, a maximum narrow side width in the left-right direction of the top end opening of each slit-type passage, and a height H of the rectifying device 14, that is, a height of each slit-type passage. Preferably, W3/h=0.05 to 0.20. Thereby further ensuring the structural stability of the thick combustion flame and the thin combustion flame.
In some embodiments of the present invention, the ratio of the theoretical air amount of the complete combustion of the gas to the gas amount may be Φ S, and the mixing ratio of the air amount of the rich combustion injection inlet 131 to the gas amount may be Φ R, where Φ R/ΦS =0.5 to 0.8.
Phi R/ΦS represents the primary air rate of the thick combustion, and the area ratio of the inlet of the thick combustion injection inlet 131 to the area ratio of the inlet of the thin combustion injection inlet 121 is designed, so that the primary air rate of the thick combustion and the thin combustion can be adjusted, the fuel gas and the air are fully mixed and have good combustion ratio, a stable flame structure is formed, and the emission of nitrogen oxides in the flue gas is reduced.
In some embodiments of the present invention, the ratio of the theoretical air amount of the complete combustion of the gas to the gas amount may be Φ S, and the mixing ratio of the air amount of the lean combustion injection inlet 121 to the gas amount may be Φ L, where Φ L/ΦS =1.5 to 2.0.
Phi R/ΦS represents the primary air rate of the light combustion, and the primary air rate of the heavy combustion and the light combustion can be adjusted by designing the area ratio of the inlet of the heavy combustion injection inlet 131 to the inlet of the light combustion injection inlet 121, so that the fuel gas and the air are fully mixed and have good combustion ratio, stable flame structure is formed, and the emission of nitrogen oxides in the flue gas is reduced.
In some embodiments of the present invention, as shown in fig. 5, 7 and 8, the combustor 100 housing 11 may include first and second thin combustion casing sections 113 and 114 and first and second thick combustion casing sections 111 and 112, the first thin combustion casing section 113 being connected to the second thin combustion casing section 114 and collectively defining a thin combustion chamber 1141 and a thin combustion opening 115, and a rectifying device 14 disposed between the first and second thin combustion casing sections 113 and 114 and at the thin combustion opening 115.
The first thick combustion casing portion 111 is connected to the first thin combustion casing portion 113 and is located outside the first thin combustion casing portion 113, the first thick combustion casing portion 111 and the first thin combustion casing portion 113 together define a first thick combustion chamber 1111 and a first thick combustion flame port 118, the second thick combustion casing portion 112 is connected to the second thin combustion casing portion 114 and is located outside the second thin combustion casing portion 114, and the second thick combustion casing portion 112 and the second thin combustion casing portion 114 together define a second thick combustion chamber 1121 and a second thick combustion flame port 119.
As shown in fig. 7 and 8, the first thick combustion flame port 118 and the second thick combustion flame port 119 are respectively located at two sides of the thin combustion opening 115, the rectifying device 14 is arranged at the thin combustion opening 115, a plurality of thin combustion flame ports 141 are arranged on the rectifying device 14, a plurality of thin combustion flame ports 141 are arranged at the top end of the rectifying device 14, and the first thick combustion flame port 118 and the second thick combustion flame port 119 are respectively located at two sides of the plurality of thin combustion flame ports 141, so that middle thin combustion flame can be formed, and the stable flame structures of the thick combustion flame at two sides can be improved, the flame temperature can be reduced, and the emission of nitrogen oxides can be reduced.
Advantageously, the burner 100 housing 11 may further include a plurality of connection pieces 17, both ends of each connection piece 17 being connected to the first rich burn housing portion 111 and the second rich burn housing portion 112, respectively, the plurality of connection pieces 17 dividing each of the first rich burn flame port 118, the second rich burn flame port 119, and the lean burn flame port 141 into a plurality of segments. Therefore, the light combustion flame and the thick combustion flame can be divided into a plurality of sections, so that the heat dissipation area of the flame can be increased, and the flame temperature can be reduced.
Optionally, the shell 11 of the combustor 100 may further include a lean combustion injector 12 and a rich combustion injector 13, where the lean combustion injector 12 is connected to the first lean combustion shell 113 and the second lean combustion shell 114, and a lean combustion injection inlet 121 is provided on the lean combustor 100; the thick combustion ejector 13 is connected with the first thick combustion shell part 111 and the second thick combustion shell part 112 and is respectively communicated with the first thick combustion cavity 1111 and the second thick combustion cavity 1121, the thick combustion ejector 13 is positioned above the thin combustion ejector 12, and the thick combustion ejector inlet 131 is arranged on the thick combustion ejector 13. Thus, the gas and the introduced air can be guided to the first and second rich combustion chambers 1111 and 1121 through the rich combustion injector 13, the gas and the air are mixed in the first and second rich combustion chambers 1111 and 1121, and the mixed gas is led to the first and second rich combustion flame ports 118 and 119. At this time, the gas and the introduced air may be introduced into the lean combustion chamber 1141 through the lean combustion injector 12, and the gas and the air may be mixed in the lean combustion chamber 1141, and the mixed gas and air may be introduced into the lean combustion flame port 141.
In some embodiments of the invention, the combustion unit 1 may further comprise a rich combustion nozzle 15 and a lean combustion nozzle 16, the rich combustion nozzle 15 being operable to provide fuel gas to the rich combustion injection inlet 131, the lean combustion nozzle 16 being operable to provide fuel gas to the lean combustion injection inlet 121, the rich combustion nozzle 15 being in communication with the rich combustion injector 13 inlet, the lean combustion nozzle 16 being in communication with the lean combustion injection inlet 121. Thereby, the fuel gas is injected through the rich combustion nozzle 15 to the rich combustion injection inlet 131, and the fuel gas is mixed with the air introduced from the rich combustion injector 13 and is led to the first rich combustion chamber 1111 and the second rich combustion chamber 1121. Gas may be injected through the lean burn injection inlet 121 via the lean burn nozzle 16, mixed with air introduced by the lean burn injector 12 and directed into the lean burn chamber 1141.
Alternatively, the cross-sectional area S3 of the gas nozzles of the rich combustion nozzle 15 and the cross-sectional area S4 of the gas nozzles of the lean combustion nozzle 16 may satisfy: s3/s4=0.25 to 0.65. That is, the cross-sectional area of the gas injection port of the thick combustion nozzle 15 is 0.25 to 0.65 times that of the gas injection port of the thin combustion nozzle 16, whereby the ratio of the amount of the thick combustion and the thin combustion gas to the amount of the air can be controlled by designing the cross-sectional area ratio of the thick combustion nozzle 15 and the gas injection port of the thin combustion nozzle 16, so that the amount of the air introduced by the thin combustion injection inlet 121 to the amount of the gas injected by the thin combustion nozzle 16, and the amount of the air introduced by the thick combustion injection inlet 131 to the amount of the gas injected by the thick combustion nozzle 15 have a good ratio, so that the thick combustion and the thick combustion are more sufficient, and the emission of nitrogen oxides is reduced.
Further, the cross-sectional area S1 of the rich combustion injection inlet 131 and the cross-sectional area S2 of the lean combustion injection inlet 121 satisfy: s1/s2=0.20 to 0.40. In other words, the cross-sectional area of the rich burn injection inlet 131 is S1, and the cross-sectional areas of the lean burn injection inlet 121 are S2, S1 and S2 can satisfy: s1/s2=0.20 to 0.40, i.e. the cross-sectional area S1 of the rich combustion injection inlet 131 is 0.20 to 0.40 times the cross-sectional area S2 of the lean combustion injection inlet 121.
Thereby, the air quantity introduced from the rich combustion injection inlet 131 and the lean combustion injection inlet 121 can be controlled, and the air introduced from the rich combustion injector 13 inlet and the air introduced from the lean combustion injector 12 inlet can be made to form good mixing ratios with the fuel gas, respectively, to control the primary air rate of the rich combustion or the lean combustion, that is, the ratio of the air quantity and the fuel gas quantity when the fuel gas and the air are premixed, and the ratio of the theoretical air quantity and the fuel gas quantity air ratio of the complete combustion reaction with the fuel gas. Therefore, the stability of the flame structure can be effectively improved, so that the emission of nitrogen oxides in the flue gas is further reduced, and the environmental pollution is reduced.
One specific example of a burner 100 according to an embodiment of the present invention is described in detail below with reference to the accompanying drawings, it being understood that the following description is illustrative only and is not to be construed as limiting the embodiment of the present invention.
As shown in connection with fig. 1 to 12, the burner 100 according to the embodiment of the present invention may include a plurality of combustion units 1, a primary air conditioning plate 2, and a secondary air conditioning plate 3, the plurality of combustion units 1 being disposed side by side and aligned in the width direction of the combustion units 1.
Specifically, each combustion unit 1 includes a combustor 100 housing 11, a rectifying device 14, a rich combustion injector 13, a lean combustion injector 12, a rich combustion nozzle 15, and a lean combustion nozzle 16. As shown in fig. 5, 7 and 8, the burner 100 housing 11 includes first and second thin combustion housing portions 113 and 114 and first and second thick combustion housing portions 111 and 112, the first thin combustion housing portion 113 and the second thin combustion housing portion 114 being connected and collectively defining a thin combustion chamber 1141 and a thin combustion opening 115, and the rectifying means 14 being disposed between the first and second thin combustion housing portions 113 and 114 at the thin combustion opening 115.
The first thick combustion casing portion 111 is connected to the first thin combustion casing portion 113 and is located outside the first thin combustion casing portion 113, the first thick combustion casing portion 111 and the first thin combustion casing portion 113 together define a first thick combustion chamber 1111 and a first thick combustion flame port 118, the second thick combustion casing portion 112 is connected to the second thin combustion casing portion 114 and is located outside the second thin combustion casing portion 114, and the second thick combustion casing portion 112 and the second thin combustion casing portion 114 together define a second thick combustion chamber 1121 and a second thick combustion flame port 119.
The first thick combustion flame port 118 and the second thick combustion flame port 119 are respectively positioned at two sides of the thin combustion opening 115, the rectifying device 14 is arranged at the thin combustion opening 115, a plurality of thin combustion flame ports 141 are arranged on the rectifying device 14, a plurality of thin combustion flame ports 141 are arranged at the top end of the rectifying device 14, and the first thick combustion flame port 118 and the second thick combustion flame port 119 are respectively positioned at two sides of the plurality of thin combustion flame ports 141, so that middle thin combustion flame can be formed, and the stable flame structure of thick combustion flame at two sides can be realized, so that the flame stability can be improved, the flame temperature can be reduced, and the emission of nitrogen oxides can be reduced.
The thin combustion ejector 12 is connected with the first thin combustion shell part 113 and the second thin combustion shell part 114, the thin combustion ejector inlet 121 is formed in the thin combustion 100, the thick combustion ejector 13 is connected with the first thick combustion shell part 111 and the second thick combustion shell part 112 and is respectively communicated with the first thick combustion cavity 1111 and the second thick combustion cavity 1121, the thick combustion ejector 13 is located above the thin combustion ejector 12, and the thick combustion ejector inlet 131 is formed in the thick combustion ejector 13. Thus, the gas and the introduced air can be guided to the first and second rich combustion chambers 1111 and 1121 through the rich combustion injector 13, and the gas and the air can be mixed and then be led to the first and second rich combustion ports 118 and 119. At the same time, the gas and the introduced air are guided to the lean burn chamber 1141 by the lean burn ejector 12, and the gas and the air are mixed and then led to the lean burn flame port 141.
The rich combustion nozzle 15 may be used to provide fuel gas to the rich combustion injection inlet 131, the lean combustion nozzle 16 may be used to provide fuel gas to the lean combustion injection inlet 121. The rich combustion nozzle 15 corresponds to and communicates with the rich combustion injector 13 inlet, and the lean combustion nozzle 16 corresponds to and communicates with the lean combustion injection inlet 121. Thereby, the fuel gas is injected into the rich combustion injection inlet 131 through the rich combustion nozzle 15, and the fuel gas is mixed with the air introduced from the rich combustion injector 13 and then introduced into the first rich combustion chamber 1111 and the second rich combustion chamber 1121. Gas is injected into the lean combustion injection inlet 121 through the lean combustion nozzle 16, and the gas is mixed with air introduced by the lean combustion injector 12 and then led to the lean combustion chamber 1141.
Wherein, the cross-sectional area S1 of the thick combustion injection inlet 131 and the cross-sectional area S2 of the thin combustion injection inlet 121 satisfy the following conditions: s1/s2=0.20 to 0.40, and the cross-sectional area S3 of the gas nozzle of the thick combustion nozzle 15 and the cross-sectional area S4 of the gas nozzle of the thin combustion nozzle 16 satisfy: s3/s4=0.25 to 0.65. Thus, the ratio of the amount of fuel gas to the amount of air in the rich combustion injection inlet 131 and the ratio of the amount of air to the amount of fuel gas in the lean combustion injection inlet 121 can be controlled, and the primary air rate of rich combustion and the primary air rate of lean combustion can be controlled.
The ratio of the theoretical air quantity and the gas quantity of the complete combustion of the gas can be phi S, the mixing ratio of the air quantity and the gas quantity of the thick combustion injection inlet 131 is phi R, the mixing ratio of the air quantity and the gas quantity of the thin combustion injection inlet 121 is phi L, the thick combustion primary air rate is phi R/ΦS and satisfies phi R/ΦS =0.5-0.8, the thin combustion primary air rate is phi L/ΦS and satisfies the following conditions
Φ L/ΦS =1.5 to 2.0. So that the fuel gas and the air are fully mixed and have good combustion proportion, stable flame structure is formed, and the emission of nitrogen oxides in the flue gas is reduced.
As shown in fig. 7 and 8, the rectifying device 14 and the two sidewalls of the light combustion opening 115 may define a first blind path 116 and a second blind path 117 therebetween, the first blind path 116 being located between the first thick combustion port 118 and the plurality of light combustion ports 141, and the second blind path 117 being located between the second thick combustion port 119 and the plurality of light combustion ports 141.
The top surface of the outer side wall of the first blind road 116 is flush with the top surface of the outer side wall of the second blind road 117 and higher than the top surface of the rectifying device 14, the top surface of the outer side wall of the first thick combustion flame port 118 is flush with the top surface of the outer side wall of the second blind road 119 and higher than the top surface of the outer side wall of the first blind road 116 and the top surface of the outer side wall of the second blind road 117, the height difference between the top surface of the outer side wall of the first blind road 116 and the top surface of the outer side wall of the second blind road 117 and the top surface of the rectifying device 14 is H1, the height difference between the top surface of the outer side wall of the first thick combustion flame port 118 and the top surface of the outer side wall of the second thick combustion flame port 119 is H2, the maximum width of the first blind road 116 and the maximum width of the second blind road 117 are equal and can be W2, and the maximum width of the first thick combustion flame port 118 and W1 are equal to or more than or equal to the maximum width of the second thick combustion flame port 119, wherein H2H 1, W2 is more than or equal to W1. Thereby facilitating control of the air flow stability of the thick and thin combustion ports 141 and further improving the stability of the combustion flame.
The maximum width of the light flame port 141 may be W3, and the height of the rectifying device 14 may be H, wherein W3/h=0.03 to 0.30. Preferably, W3/h=0.05 to 0.20. Thereby further ensuring the structural stability of the thick combustion flame and the thin combustion flame.
The primary air conditioning plate 2 may be provided on the front sides of the rich combustion injection inlets 131 and the lean combustion injection inlets 121 of the plurality of combustion units 1 to condition the air injection amount. The amount of air introduced into the rich combustion injection inlet 131 and the lean combustion injection inlet 121 of each combustion unit 1 can be adjusted by the primary air conditioning plate 2, thereby further controlling the ratio of the amount of air and the amount of fuel of the rich combustion injection inlet 131 and the ratio of the amount of air and the amount of fuel of the lean combustion injection inlet 121.
A secondary air regulating plate 3 is provided below the combustion unit 1 to regulate the amount of air in the combustion chamber, and the primary air regulating plate 2 extends downward and defines a plenum 21 with the secondary air regulating plate 3. Air generated by a blower of the combustion water heater flows to the thick combustion injection inlet 131 and the thin combustion injection inlet 121 through the pressure equalizing chamber 21, and primary air quantity entering the thick combustion injection inlet 131 and the thin combustion injection inlet 121 can be more uniform through the pressure equalizing chamber 21, so that combustion effect is improved.
Thus, according to the burner 100 of the embodiment of the present invention, the first thick combustion flame port 118 and the second thick combustion flame port 119 of the combustion unit 1 are respectively located at two sides of the plurality of thin combustion flame ports 141, so as to form a stable flame structure with thin combustion flame in the middle and thick combustion flame at two sides, thereby achieving the purposes of reducing flame temperature and controlling emission of nitrogen oxides in flue gas after combustion. And the cross-sectional area S1 of the rich combustion injection inlet 131 and the cross-sectional area S2 of the lean combustion injection inlet 121 of the burner 100 satisfy: s1/s2=0.20 to 0.40, and the cross-sectional area S3 of the gas nozzle of the thick combustion nozzle 15 and the cross-sectional area S4 of the gas nozzle of the thin combustion nozzle 16 satisfy: s3/s4=0.25 to 0.65. And defines the structure of the housing 11 of the burner 100 and the primary air rate of the rich combustion and the lean combustion, so that the air introduced by the rich combustion injection inlet 131 and the lean combustion injection inlet 121 forms a good proportion with the fuel gas, thereby further controlling the structural stability of the combustion flame and reducing the emission of nitrogen oxides.
The present invention also proposes a gas water heater including the burner 100 of the above embodiment.
Since the burner 100 according to the above embodiment of the present invention has the above technical effects, the gas water heater according to the embodiment of the present invention also has the above technical effects, that is, the gas water heater according to the embodiment of the present invention, by providing the burner 100 according to the above embodiment, can improve the stability of the flame structure, reduce the temperature of the combustion flame, and reduce the emission of nitrogen oxides in the flue gas of the gas water heater.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present invention. In this specification, schematic representations of the above terms are not necessarily directed 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, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. A burner, comprising:
at least one combustion unit comprising:
The burner comprises a burner shell, wherein the burner shell is internally provided with a first thick combustion cavity, a second thick combustion cavity and a thin combustion cavity, and the burner shell is provided with a thick combustion injection inlet communicated with the first thick combustion cavity and the second thick combustion cavity, a thin combustion injection inlet communicated with the thin combustion cavity, a first thick combustion flame port communicated with the first thick combustion cavity, a second thick combustion flame port communicated with the second thick combustion cavity and a thin combustion opening communicated with the thin combustion cavity;
The rectifying device is arranged in the light combustion opening, a plurality of light combustion flame ports communicated with the light combustion cavity are arranged on the rectifying device, and the first thick combustion flame ports and the second thick combustion flame ports are respectively positioned on two sides of the plurality of light combustion flame ports;
the primary air adjusting plate is arranged at the front sides of the thick combustion ejector inlet and the thin combustion ejector inlet so as to adjust air ejection quantity;
A secondary air regulating plate provided below the combustion unit, the primary air regulating plate extending downward and defining a plenum with the secondary air regulating plate;
A first blind road and a second blind road are respectively defined between the rectifying device and two side walls of the light combustion opening, the first blind road is positioned between the first thick combustion flame port and the plurality of light combustion flame ports, and the second blind road is positioned between the second thick combustion flame port and the plurality of light combustion flame ports;
The top surface of the outer side wall of the first blind road is flush with the top surface of the outer side wall of the second blind road and higher than the top surface of the rectifying device, the top surface of the outer side wall of the first thick combustion flame port is flush with the top surface of the outer side wall of the second thick combustion flame port and higher than the top surface of the outer side wall of the first blind road and the top surface of the outer side wall of the second blind road, the height difference between the top surface of the outer side wall of the first blind road and the top surface of the outer side wall of the second blind road and the top surface of the rectifying device is H1, and the height difference between the top surface of the outer side wall of the first thick combustion flame port and the top surface of the outer side wall of the second thick combustion flame port and the top surface of the rectifying device is H2, wherein H2 is more than or equal to H1;
the maximum width of the light combustion flame port is W3, and the height of the rectifying device is H, wherein W3/H=0.03-0.30;
the maximum width of the first blind sidewalk is equal to the maximum width of the second blind sidewalk and is W2, and the maximum width of the first thick combustion flame opening is equal to the maximum width of the second thick combustion flame opening and is W1, wherein W2 is more than or equal to W1.
2. The burner according to claim 1, wherein the ratio of the theoretical air quantity of complete combustion of the gas to the gas quantity is ΦS, the mixed ratio of the air quantity of the rich combustion injection inlet and the gas quantity is ΦR, wherein,
ΦR/ΦS=0.5~0.8。
3. The burner according to claim 1, wherein the ratio of the theoretical air quantity of complete combustion of the gas to the gas quantity is ΦS, the mixing ratio of the air quantity of the lean combustion injection inlet and the gas quantity is ΦL, wherein,
ΦL/ΦS=1.5~2.0。
4. A burner as claimed in any one of claims 1 to 3, wherein the burner housing comprises:
the first light combustion shell part is connected with the second light combustion shell part and jointly defines the light combustion cavity and the light combustion opening, and the rectifying device is arranged between the first light combustion shell part and the second light combustion shell part and is positioned at the light combustion opening;
First thick burning shell portion and second thick burning shell portion, first thick burning shell portion with first thin burning shell portion links to each other and is located the outside of first thin burning shell portion, first thick burning shell portion with first thin burning shell portion defines jointly first thick burning chamber with first thick burning flame port, second thick burning shell portion with second thin burning shell portion links to each other and is located the outside of second thin burning shell portion, second thick burning with second thin burning shell portion defines jointly second thick burning chamber with second thick burning flame port.
5. The burner of claim 4 wherein said burner housing further comprises:
The two ends of each connecting sheet are respectively connected with the first thick combustion shell part and the second thick combustion shell part, and the connecting sheets divide each of the first thick combustion flame port, the second thick combustion flame port and the thin combustion flame port into a plurality of sections.
6. The burner of claim 4 wherein said burner housing comprises:
The light combustion ejector is connected with the first light combustion shell part and the second light combustion shell part, and the light combustion ejection inlet is arranged on the light combustion ejector;
the thick burning ejector is connected with the first thick burning shell part and the second thick burning shell part and is communicated with the first thick burning cavity and the second thick burning cavity, the thick burning ejector is positioned above the thin burning ejector, and the thick burning ejection inlet is formed in the thick burning ejector.
7. The burner of any one of claims 6, wherein the combustion unit further comprises:
the thick combustion nozzle is used for providing fuel gas for the thick combustion injection inlet and corresponds to the thick combustion injection inlet;
And the light combustion nozzle is used for providing fuel gas for the light combustion injection inlet and corresponds to the light combustion injection inlet.
8. The burner of claim 7, wherein the cross-sectional area S3 of the gas ports of the rich combustion nozzle and the cross-sectional area S4 of the gas ports of the lean combustion nozzle satisfy: s3/s4=0.25 to 0.65.
9. A burner according to any one of claims 1 to 3, wherein the combustion units are plural and arranged in the width direction of the combustion units.
10. A gas water heater comprising a burner according to any one of claims 1-9.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611062639.8A CN108006632B (en) | 2016-11-25 | 2016-11-25 | Combustor and gas water heater with same |
| PT168545937T PT3546827T (en) | 2016-11-25 | 2016-11-30 | Burner and gas water heater provided with same |
| EP16854593.7A EP3546827B1 (en) | 2016-11-25 | 2016-11-30 | Burner and gas water heater provided with same |
| ES16854593T ES2890375T3 (en) | 2016-11-25 | 2016-11-30 | Burner and gas water heater provided with the same |
| PCT/CN2016/108092 WO2018094752A1 (en) | 2016-11-25 | 2016-11-30 | Burner and gas water heater provided with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611062639.8A CN108006632B (en) | 2016-11-25 | 2016-11-25 | Combustor and gas water heater with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108006632A CN108006632A (en) | 2018-05-08 |
| CN108006632B true CN108006632B (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611062639.8A Active CN108006632B (en) | 2016-11-25 | 2016-11-25 | Combustor and gas water heater with same |
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| CN112082159A (en) * | 2019-06-14 | 2020-12-15 | 芜湖美的厨卫电器制造有限公司 | Gas distributing rod for gas water heater and gas water heater with gas distributing rod |
| CN110410789A (en) * | 2019-08-26 | 2019-11-05 | 珠海格力电器股份有限公司 | Fire exhaust fin, combustor and gas water heater |
| CN111853859A (en) * | 2020-07-31 | 2020-10-30 | 广东万和电气有限公司 | Combustor air inlet system for kitchen range |
| CN114396619A (en) * | 2021-12-22 | 2022-04-26 | 重庆海尔热水器有限公司 | Combustor and gas water heater |
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|---|---|---|---|---|
| JPH0742917A (en) * | 1992-09-11 | 1995-02-10 | Rinnai Corp | Burner for gas equipment and its manufacturing method |
| JP2010261615A (en) * | 2009-04-30 | 2010-11-18 | Paloma Ind Ltd | Burner |
| JP2014126217A (en) * | 2012-12-25 | 2014-07-07 | Rinnai Corp | Combustion device |
| CN205480981U (en) * | 2016-02-05 | 2016-08-17 | 台湾樱花股份有限公司 | Gas heater and rich -lean combustion ware thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150184849A1 (en) * | 2013-12-27 | 2015-07-02 | Rinnai Corporation | Rich-Lean Burner |
| JP6356438B2 (en) * | 2014-03-04 | 2018-07-11 | パーパス株式会社 | Burner, combustion apparatus and combustion method |
| US20150369479A1 (en) * | 2014-06-20 | 2015-12-24 | Rinnai Corporation | Flat burner |
| US9933155B2 (en) * | 2015-04-22 | 2018-04-03 | Rinnai Corporation | Rich-lean burner |
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2016
- 2016-11-25 CN CN201611062639.8A patent/CN108006632B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0742917A (en) * | 1992-09-11 | 1995-02-10 | Rinnai Corp | Burner for gas equipment and its manufacturing method |
| JP2010261615A (en) * | 2009-04-30 | 2010-11-18 | Paloma Ind Ltd | Burner |
| JP2014126217A (en) * | 2012-12-25 | 2014-07-07 | Rinnai Corp | Combustion device |
| CN205480981U (en) * | 2016-02-05 | 2016-08-17 | 台湾樱花股份有限公司 | Gas heater and rich -lean combustion ware thereof |
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| CN108006632A (en) | 2018-05-08 |
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