WO2018094943A1 - 燃烧器和具有其的燃气热水器 - Google Patents

燃烧器和具有其的燃气热水器 Download PDF

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Publication number
WO2018094943A1
WO2018094943A1 PCT/CN2017/079169 CN2017079169W WO2018094943A1 WO 2018094943 A1 WO2018094943 A1 WO 2018094943A1 CN 2017079169 W CN2017079169 W CN 2017079169W WO 2018094943 A1 WO2018094943 A1 WO 2018094943A1
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WO
WIPO (PCT)
Prior art keywords
combustion
light
rich
rich combustion
shell portion
Prior art date
Application number
PCT/CN2017/079169
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English (en)
French (fr)
Inventor
薛承志
代先锋
梁国荣
Original Assignee
芜湖美的厨卫电器制造有限公司
美的集团股份有限公司
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.)
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Publication date
Priority claimed from CN201611059207.1A external-priority patent/CN108006630B/zh
Application filed by 芜湖美的厨卫电器制造有限公司, 美的集团股份有限公司 filed Critical 芜湖美的厨卫电器制造有限公司
Priority to ES17874506T priority Critical patent/ES2883333T3/es
Priority to EP17874506.3A priority patent/EP3460326B1/en
Publication of WO2018094943A1 publication Critical patent/WO2018094943A1/zh

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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
    • F23D14/045—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 with a plurality of burner bars assembled together, e.g. in a grid-like arrangement
    • 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
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • F23D14/583—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits
    • F23D14/586—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits formed by a set of sheets, strips, ribbons or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/108—Flame diffusing means with stacked sheets or strips forming the outlets

Definitions

  • the invention relates to the technical field of household appliances, in particular to a burner and a gas water heater having the same.
  • the present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, the present invention proposes a burner capable of reducing the emission of nitrogen oxides in the flue gas and reducing environmental pollution.
  • the invention also proposes a gas water heater having the burner.
  • a burner comprising at least one combustion unit, the combustion unit comprising: a burner housing having a first rich combustion chamber, a second rich combustion chamber, and a light combustion therein a cavity, the burner housing is provided with a rich combustion ejector inlet communicating with the first rich combustion chamber and the second rich combustion chamber, a light combustion ejector inlet communicating with the light combustion chamber, and a first rich combustion flame port communicating with the first rich combustion chamber, a second rich combustion flame port communicating with the second rich combustion chamber, and a light combustion opening communicating with the light combustion chamber; a rectifying device, the rectifying device Provided in the light combustion opening, wherein the rectifying device is provided with a plurality of light combustion flame ports communicating with the light combustion chamber, wherein the first rich combustion flame port and the second rich combustion flame port are respectively located at the plurality
  • the first blind channel and the second blind channel are respectively defined between the rectifying device and the two sidewalls of the light combustion opening, and the first blind channel is located at the first rich
  • the top surface of the outer sidewall of the first blind lane is flush with the top surface of the outer sidewall of the second blind lane and higher than the top surface of the rectifying device
  • the top surface of the outer sidewall of the first rich combustion flame is a top surface of the outer sidewall of the second rich combustion flame is flush and higher than a top surface of the outer sidewall of the first blind and a top surface of the outer sidewall of the second blind
  • the top of the outer sidewall of the first blind a height difference between a top surface of the outer wall of the face and the second blind track and a top surface of the fairing device is H1
  • a top surface of the outer side wall of the first rich combustion flame port and an outer side wall of the second rich combustion flame port is H2, where H2 ⁇ H1.
  • the first rich combustion flame port and the second rich combustion flame port of the combustion unit are respectively It is located on both sides of a plurality of light combustion flame mouths to form a stable flame structure with a light combustion flame in the middle and a concentrated combustion flame on both sides, so as to reduce the flame temperature and control the emission of nitrogen oxides in the flue gas after combustion.
  • the difference between the top surface of the outer side wall of the first blind track and the top surface of the outer side wall of the second blind track and the top surface of the rectifying device is H1
  • the height difference between the top surface of the outer side wall of the flame port and the top surface of the rectifying device is H2, H2 ⁇ H1.
  • the burner according to an embodiment of the invention may also have the following additional technical features:
  • a maximum width of the first blind track is equal to a maximum width of the second blind track and is W2, a maximum width of the first rich combustion flame port and a maximum of the second rich combustion flame port The width is equal and is W1, where W2 ⁇ W1.
  • the ratio of the theoretical air amount to the gas amount of the complete combustion of the gas is ⁇ S
  • the ratio of the theoretical air amount to the gas amount of the complete combustion of the gas is ⁇ S
  • the burner housing includes: a first light combustion shell portion and a second light combustion shell portion, the first light combustion shell portion being connected to the second light combustion shell portion and common Defining the light combustion chamber and the light combustion opening, the rectifying device being disposed between the first light combustion shell portion and the second light combustion shell portion and located at the light combustion opening; a rich combustion shell portion and a second rich combustion shell portion, the first rich combustion shell portion being connected to the first light combustion shell portion and located outside the first light combustion shell portion, the first rich combustion shell And the first rich combustion chamber portion together define the first rich combustion chamber and the first rich combustion flame, the second rich combustion shell portion is connected to the second light combustion shell portion and located at the The outer side of the second light combustion shell portion, the second rich combustion shell portion and the second light combustion shell portion together define the second rich combustion chamber and the second rich combustion flame port.
  • the burner housing further includes: a plurality of connecting pieces, wherein two ends of each of the connecting pieces are respectively connected to the first rich combustion shell portion and the second rich combustion shell portion, and a plurality of The connecting piece divides each of the first rich combustion flame, the second rich combustion flame, and the light combustion flame into a plurality of segments.
  • the burner housing includes: a light combustion ejector connected to the first light combustion shell portion and the second light combustion shell portion, the light combustion lead a shot inlet is disposed on the light combustion ejector; a rich combustion ejector connected to the first rich combustion shell portion and the second rich combustion shell portion and first concentrated
  • the combustion chamber is in communication with a second rich combustion chamber, the rich combustion ejector being located above the light combustion ejector, and the rich combustion ejector inlet being disposed on the rich combustion ejector.
  • the combustion unit further includes: a rich combustion nozzle for supplying gas to the rich combustion ejector inlet, the rich combustion nozzle corresponding to the rich combustion ejector inlet; a light combustion nozzle that supplies gas to the light combustion ejector inlet, the light combustion nozzle corresponding to the light combustion ejector inlet.
  • the burner further includes: a primary air conditioning plate disposed at an inlet of the rich combustion ejector and a front side of the inlet of the light combustion ejector to adjust air introduction The amount of radiation.
  • the burner further includes: a secondary air conditioning plate, the secondary air conditioning plate is disposed under the combustion unit, the primary adjustment plate extends downward and is adjacent to the secondary air conditioning plate A pressure equalization chamber is defined between them.
  • the combustion units are plural and arranged along the width direction of the combustion unit.
  • a gas water heater having the burner of the above embodiment according to an embodiment of the second aspect of the present invention.
  • the gas water heater according to the embodiment of the present invention also has the above-described technical effects, that is, the gas water heater according to the embodiment of the present invention, by providing the burner of the above embodiment, thereby It 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.
  • FIG. 1 is a schematic structural view of an angle of a combustion unit of a burner according to an embodiment of the present invention
  • FIG. 2 is a schematic structural view of another angle of a combustion unit of a burner according to an embodiment of the present invention.
  • Figure 3 is a cross-sectional view taken along line A-A of Figure 2;
  • FIG. 4 is a top plan view of a combustion unit of a combustor in accordance with an embodiment of the present invention.
  • Figure 5 is an exploded view of a combustion unit of a burner in accordance with an embodiment of the present invention.
  • Figure 6 is a schematic structural view of a combustion unit of a burner according to another embodiment of the present invention.
  • Figure 7 is a cross-sectional view taken along line B-B of Figure 6;
  • Fig. 8 is an enlarged view of a portion C in Fig. 7;
  • 11 burner housing, 111: first rich combustion shell, 1111: first rich combustion chamber, 112: second rich combustion shell, 1121: second rich combustion chamber, 113: first light combustion shell, 114: second light combustion shell, 1141: light combustion chamber, 115: light combustion opening, 116: first blind, 117: second blind, 118: first rich flame, 119: second rich flame mouth;
  • first and second 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.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. Or in one piece; it may be a mechanical connection, or it may be an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship between two elements. Unless otherwise expressly defined. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • a burner may comprise at least one combustion unit 1, each combustion unit 1 comprising a burner housing 11 and a rectifying device 14.
  • the burner housing 11 has a first rich combustion chamber 1111, a second rich combustion chamber 1121 and a light combustion chamber 1141.
  • the burner housing 11 is provided with a first rich combustion chamber 1111 and a second rich combustion chamber 1121.
  • the rectifying device 14 is disposed in the light combustion opening 115 and the rectifying device 14 is provided with a plurality of light combustion flame ports 141 communicating with the light combustion chamber 1141.
  • the first rich combustion flame port 118 and the second rich combustion flame port 119 are respectively located in a plurality of light combustion
  • the first blind channel 116 and the second blind channel 117 are respectively defined between the rectifying device 14 and the two sidewalls of the light burning opening 115 on both sides of the flame vent 141, and the first blind channel 116 is located at the first rich combustion flame port 118 and a plurality of light burning
  • the second blind passage 117 is located between the second rich combustion flame 119 and the plurality of light combustion flame ports 141.
  • the burner may include one or more combustion units 1, for example, the burner may include a plurality of combustion units 1, which are arranged side by side and arranged along the width direction of the combustion unit 1.
  • the width direction is the left-right direction as shown in FIGS. 5 and 7.
  • Each combustion unit 1 includes a combustor casing 11 and a rectifying device 14 that is disposed within the combustor casing 11.
  • a first rich combustion chamber 1111, a second rich combustion chamber 1121 and a light combustion chamber 1141 are defined in the burner housing 11, and the combustor casing 11 is provided with a rich combustion ejector inlet 131, a light combustion ejector inlet 121, and a first a rich combustion flame port 118, a second rich combustion flame 119 and a light combustion opening 115, a rich combustion ejector inlet 131 for concentrated combustion to introduce air, and a light combustion ejector inlet 121 for light combustion to introduce air, in combination with Figs. And as shown in FIG. 6, the rich combustion ejector inlet 131 is located above the light combustion ejector inlet 121.
  • the rich combustion ejector inlet 131 is in communication with the first rich combustion chamber 1111 and the second rich combustion chamber 1121, respectively, the first rich combustion chamber 1111 is in communication with the first rich combustion flame port 118, and the second rich combustion chamber 1121 and the second rich combustion flame port are 119 is connected, the light combustion ejector inlet 121 is in communication with the light combustion chamber 1141 and the light combustion chamber 1141 is in communication with the light combustion opening 115.
  • air is introduced from the rich combustion ejector inlet 131 and mixed with the gas to form a concentrated 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 lead to the first A rich combustion flame 118 and a second rich combustion flame 119.
  • the air introduced by the light combustion ejector inlet 121 is mixed with the gas to form a light combustion gas, and flows to the light combustion chamber 1141.
  • the rectifying device 14 is disposed in the light combustion opening 115, and the rectifying device 14 is provided with a plurality of light combustion flame ports 141, and the light combustion chambers 1141 are respectively connected with the plurality of light combustion flame ports 141, and the light combustion gas is light. It can lead to a plurality of light combustion flame ports 141.
  • the first rich combustion flame port 118 and the second light combustion flame port 141 are respectively disposed at two sides of the light combustion opening 115, and the plurality of light combustion flame ports 141 are located at the first rich combustion.
  • a structure in which a light combustion flame port 141 is formed in the middle and a rich combustion flame port on both sides can be formed at the top end of each combustion unit 1. That is to say, the combustion unit 1 can form a middle light flame and a flame structure with a concentrated flame on both sides during combustion, thereby improving the stability of the flame, lowering the temperature of the combustion flame, and achieving the purpose of controlling the emission of nitrogen oxides in the flue gas.
  • the rectifying device 14 is disposed in the light combustion opening 115 and connected to both side walls of the light combustion opening 115, and defines a first blind channel 116 and a second blind channel 117 with the two side walls, respectively.
  • the first blind passage 116 and the second blind passage 117 are not in communication with the light combustion chamber 1141.
  • the first rich combustion flame 118 and the plurality of light combustion flame ports can be passed through the first blind passage 116
  • the 141 is spaced apart, and the second rich combustion flame 119 and the plurality of light combustion flame ports 141 are spaced apart by the second blind passage 117, thereby making the flame structure more stable and effectively controlling the emission of nitrogen oxides in the flue gas.
  • the top surface of the outer sidewall of the first blind channel 116 is flush with the top surface of the outer sidewall of the second blind channel 117 and higher than the top surface of the rectifying device 14, the top surface of the outer sidewall of the first rich combustion flame 118 and the second
  • the top surface of the outer sidewall of the rich combustion flame 119 is flush and higher than the top surface of the outer sidewall of the first blind 116 and the top surface of the outer sidewall of the second blind 117, the top surface of the outer sidewall of the first blind 116 and the second
  • the height difference between the top surface of the outer side wall of the blind passage 117 and the top surface of the rectifying device 14 is H1
  • the top surface of the outer side wall of the first rich combustion flame port 118 and the top surface of the outer side wall of the second rich combustion flame port 119 are respectively rectified.
  • the height difference of the top surface of the device 14 is H2, where H2 ⁇ H1.
  • the first rich combustion flame port 118 and the second rich combustion flame port 119 of the combustion unit 1 are respectively located on both sides of the plurality of light combustion flame ports 141 to form a light combustion flame in the middle, two The side is a stable flame structure with a concentrated combustion flame, which achieves the purpose of reducing the flame temperature and controlling the emission of nitrogen oxides in the flue gas after combustion.
  • the difference between the top surface of the outer sidewall of the first blind passage 116 and the top surface of the outer sidewall of the second blind passage 117 and the top surface of the rectifying device 14 is H1
  • the top surface of the outer sidewall of the first rich combustion flame 118 is
  • the height difference between the top surface of the outer side wall of the second rich combustion flame 119 and the top surface of the rectifying device 14 is H2, H2 ⁇ H1.
  • the maximum width of the first blind passage 116 and the maximum width of the second blind passage 117 may be equal and W2, and the maximum width of the first rich combustion flame 118 is equal to the maximum width of the second rich combustion flame 119. And is W1, where W2 ⁇ W1. Thereby the structural stability of the combustion flame is further ensured.
  • the maximum width of the first rich combustion flame 118 is the maximum narrow side width of the first rich combustion flame 118 in the left and right direction
  • the maximum width of the second rich combustion flame 119 is the second.
  • the maximum width of the first blind track 116 and the maximum width of the second blind track 117 that is, the maximum narrow side width of the first blind track 116 and the second blind track 117 in the left-right direction.
  • the first narrow channel 116 and the second blind channel 117 have the same maximum narrow side width and are W2, and the first rich combustion flame port 118 and the second rich combustion flame port 119 have the same maximum narrow side width and are W1, the first blind channel 116 and the second blind channel.
  • the maximum narrow side width W2 of 117 is greater than or equal to the maximum narrow side width W1 of the first rich combustion flame port 118 and the second rich combustion flame port 119.
  • the rectifying device 14 may include a plurality of rectifying plates, and a plurality of slit-shaped passages are formed between the plurality of rectifying plates, and a plurality of light-burning flame ports 141 are formed in each of the slit-shaped passages.
  • W3/H 0.05 to 0.20.
  • the ratio of the theoretical air amount to the gas amount of the complete combustion of the gas may be ⁇ S
  • ⁇ R / ⁇ S represents the primary air rate of rich combustion.
  • the gas and air can be thoroughly mixed and have a good combustion ratio, so that the gas can be fully burned and formed during rich combustion.
  • Stable flame structure reduces nitrogen oxide emissions from flue gas.
  • the ratio of the theoretical air amount to the gas amount of the complete combustion of the gas may be ⁇ S
  • ⁇ R / ⁇ S represents the primary air rate of light combustion.
  • the burner housing 11 may include a first light combustion shell portion 113 and a second light combustion shell portion 114 and a first rich combustion shell portion. 111 and the second rich combustion shell portion 112, the first light combustion shell portion 113 is connected to the second light combustion shell portion 114 and collectively defines a light combustion chamber 1141 and a light combustion opening 115, and the rectifying device 14 is disposed in the first light combustion shell Between the portion 113 and the second light combustion shell portion 114 and at the light combustion opening 115.
  • the first rich combustion shell portion 111 is connected to the first light combustion shell portion 113 and located outside the first light combustion shell portion 113, and the first rich combustion shell portion 111 and the first light combustion shell portion 113 together define the first rich combustion.
  • the cavity 1111 and the first rich combustion flame port 118, the second rich combustion shell portion 112 is connected to the second light combustion shell portion 114 and located outside the second light combustion shell portion 114, and the second rich combustion shell portion 112 and the second light combustion chamber portion 112
  • the shell portions 114 collectively define a second rich combustion chamber 1121 and a second rich combustion flame 119.
  • the first rich combustion flame port 118 and the second rich combustion flame port 119 are respectively located on both sides of the light combustion opening 115, and the rectifying device 14 is disposed at the light burning opening 115 and provided on the rectifying device 14 a light combustion flame port 141, a plurality of light combustion flame ports 141 are provided at the top end of the rectifying device 14, and the first rich combustion flame port 118 and the second rich combustion flame port 119 are respectively located at two sides of the plurality of light combustion flame ports 141, thereby facilitating the formation of the middle A faint combustion flame, a stable flame structure with a concentrated flame on both sides to improve the stability of the flame, reduce the flame temperature, and reduce the emission of nitrogen oxides.
  • the burner housing 11 may further include a plurality of connecting pieces 17, each of which is connected to the first rich combustion casing portion 111 and the second rich combustion casing portion 112, respectively, and the plurality of connecting pieces 17 will Each of the first rich combustion flame 118, the second rich combustion flame 119, and the light combustion flame 141 is divided into a plurality of segments. Thereby, the light combustion flame and the rich combustion flame can be divided into a plurality of sections, thereby increasing the heat dissipation area of the flame and lowering the flame temperature.
  • the burner housing 11 may further include a light combustion ejector 12 and a rich combustion ejector 13 connected to the first light combustion shell portion 113 and the second light combustion shell portion 114,
  • the light combustion ejector inlet 121 is disposed on the light burner;
  • the rich combustion ejector 13 is connected to the first rich combustion shell portion 111 and the second rich combustion shell portion 112 and respectively coupled to the first rich combustion chamber 1111 and the second rich combustion
  • the cavity 1121 is in communication, and the rich combustion ejector 13 is located above the light combustion ejector 12, and the rich combustion
  • the burn injection inlet 131 is provided on the rich combustion ejector 13.
  • the gas and the introduced air can be guided to the first rich combustion chamber 1111 and the second rich combustion chamber 1121 by the rich combustion ejector 13, and the gas and air are in the first rich combustion chamber 1111 and the second rich combustion chamber 1121
  • the inner mixing, the mixed gas leads to the first rich combustion flame 118 and the second rich combustion flame 119.
  • the gas and the introduced air can be directed to the light combustion chamber 1141 by the light combustion ejector 12, and the gas and air can be mixed in the light combustion chamber 1141, and the mixed gas and air are led to the light combustion flame 141.
  • the combustion unit 1 may further include a rich combustion nozzle 15 for supplying gas to the rich combustion ejector inlet 131 and a light combustion nozzle 16, which may be used for light combustion
  • the ejector inlet 121 provides a light combustion nozzle 16 for the gas
  • the rich combustion nozzle 15 is in communication with the inlet of the rich combustion ejector 13
  • the light combustion nozzle 16 is in communication with the light combustion ejector inlet 121.
  • the rich gas is injected into the rich combustion ejector inlet 131 through the rich combustion nozzle 15, and the gas is mixed with the air introduced by the rich combustion ejector 13 and leads to the first rich combustion chamber 1111 and the second rich combustion chamber 1121.
  • Gas is injected into the light combustion ejector inlet 121 through the light combustion nozzle 16, and the gas is mixed with the air introduced by the light combustion ejector 12 and leads to the light combustion chamber 1141.
  • the cross-sectional area ratio thereby controlling the ratio of the amount of gas and the amount of air of the rich combustion and the light combustion, such that the amount of air introduced by the light combustion ejector inlet 121 and the amount of gas injected by the light combustion nozzle 16 and the rich combustion ejector
  • the amount of air introduced by the inlet 131 and the amount of gas injected by the rich combustion nozzle 15 are well proportional to make the combustion of rich combustion and rich combustion more complete, reducing the emission of nitrogen oxides.
  • the burner may further include a primary air conditioning plate provided at a front side of the rich combustion ejector inlet 131 and the light combustion ejector inlet 121 to adjust the amount of air ejector.
  • a primary air conditioning plate provided at a front side of the rich combustion ejector inlet 131 and the light combustion ejector inlet 121 to adjust the amount of air ejector.
  • the burner may further include a secondary air conditioning plate disposed below the combustion unit 1, the primary adjustment plate extending downward and defining a pressure equalization chamber between the secondary air conditioning plate.
  • the primary air conditioning plate is disposed at a front side of the rich combustion ejector inlet 131 and the light combustion ejector inlet 121 to adjust the air ejector amount
  • the secondary air conditioning plate is disposed below the combustion unit 1 to adjust the amount of air in the combustion chamber a lower end of the primary adjustment plate extends downwardly and defines a pressure equalization chamber between the secondary air conditioning plate, such that air generated by the air blower of the combustion water heater flows through the pressure equalization chamber to the rich combustion injection inlet 131 and the light combustion injection inlet 121, the primary air amount entering the rich combustion ejector inlet 131 and the light combustion ejector inlet 121 is made more uniform to improve the combustion effect.
  • a burner according to an embodiment of the present invention may include a plurality of combustion units 1, a primary air conditioning plate, and a secondary air conditioning plate, and the plurality of combustion units 1 are arranged side by side and along the width of the combustion unit 1. Arrange in the direction.
  • each combustion unit 1 includes a combustor casing 11, a rectifying device 14, a rich combustion ejector 13, a light combustion ejector 12, a rich combustion nozzle 15, and a light combustion nozzle 16.
  • the burner housing 11 includes a first light combustion shell portion 113 and a second light combustion shell portion 114, and a first rich combustion shell portion 111 and a second rich combustion shell portion 112,
  • the first light combustion shell portion 113 is connected to the second light combustion shell portion 114 and collectively defines a light combustion chamber 1141 and a light combustion opening 115
  • the rectifying device 14 is disposed at the first light combustion shell portion 113 and the second light combustion shell portion 114. Located between and at the light burning opening 115.
  • the first rich combustion shell portion 111 is connected to the first light combustion shell portion 113 and located outside the first light combustion shell portion 113, and the first rich combustion shell portion 111 and the first light combustion shell portion 113 together define the first rich combustion.
  • the cavity 1111 and the first rich combustion flame port 118, the second rich combustion shell portion 112 is connected to the second light combustion shell portion 114 and located outside the second light combustion shell portion 114, and the second rich combustion shell portion 112 and the second light combustion chamber portion 112
  • the shell portions 114 collectively define a second rich combustion chamber 1121 and a second rich combustion flame 119.
  • the first rich combustion flame port 118 and the second rich combustion flame port 119 are respectively located at two sides of the light combustion opening 115, the rectifying device 14 is disposed at the light burning opening 115, and the rectifying device 14 is provided with a plurality of light burning flame ports 141, a plurality of light
  • the combustion flame port 141 is disposed at the top end of the rectifying device 14, and the first rich combustion flame port 118 and the second rich combustion flame port 119 are respectively located at two sides of the plurality of light combustion flame ports 141, thereby facilitating the formation of a middle light combustion flame and a concentrated combustion flame on both sides.
  • Stable flame structure to improve flame stability, reduce flame temperature and reduce nitrogen oxide emissions.
  • the light combustion ejector 12 is connected to the first light combustion shell portion 113 and the second light combustion shell portion 114, the light combustion ejector inlet 121 is provided on the light burner, the rich combustion ejector 13 and the first rich combustion shell portion 111 is connected to the second rich combustion shell portion 112 and communicates with the first rich combustion chamber 1111 and the second rich combustion chamber 1121, respectively, the rich combustion ejector 13 is located above the light combustion ejector 12, and the rich combustion ejector inlet 131 is provided On the rich combustion ejector 13.
  • the rich combustion ejector 13 can guide the gas and the introduced air to the first rich combustion chamber 1111 and the second rich combustion chamber 1121, and the gas and the air can be mixed to the first rich combustion flame 118 and the second. Thick burning flame 119.
  • the gas and the introduced air can be directed to the light combustion chamber 1141 by the light combustion ejector 12, and the gas and air are mixed and then led to the light combustion flame 141.
  • the rich combustion nozzle 15 can be used to supply the rich combustion ejector inlet 131 with gas
  • the light combustion nozzle 16 can be used to supply the light combustion nozzle 16 to the light combustion ejector inlet 121
  • the rich combustion nozzle 15 is connected to the rich combustion ejector 13 inlet.
  • the light combustion nozzle 16 is in communication with the light combustion ejector inlet 121.
  • the rich gas is injected into the rich combustion ejector inlet 131 through the rich combustion nozzle 15, and the gas is mixed with the air introduced by the rich combustion ejector 13 and then led to the first rich combustion chamber 1111 and the second rich combustion chamber 1121.
  • Gas is injected into the light combustion ejector inlet 121 through the light combustion nozzle 16, and the gas is mixed with the air introduced by the light combustion ejector 12 and then led to the light combustion chamber 1141.
  • the ratio of the theoretical air amount to the gas amount of the complete combustion of the gas may be ⁇ S , the mixing ratio of the air amount and the gas amount of the rich combustion ejector inlet 131 is ⁇ R , and the mixture of the air amount and the gas amount of the light combustion ejector inlet 121
  • the ratio is ⁇ L
  • the light combustion primary air rate is ⁇ L / ⁇ S and satisfies
  • the ratio of the inlet area of the rich combustion ejector inlet 131 to the light combustion ejector inlet 121, the cross-sectional area of the gas injection port of the rich combustion nozzle 15 and the cross-sectional area of the gas injection port of the light combustion nozzle 16 can be controlled.
  • the first blind passage 116 and the second blind passage 117 may be respectively defined between the rectifying device 14 and the two side walls of the light combustion opening 115, and the first blind passage 116 is located at the first rich combustion flame port 118 and more. Between the light combustion flame ports 141, the second blind passage 117 is located between the second rich combustion flame 119 and the plurality of light combustion flame ports 141.
  • the top surface of the outer sidewall of the first blind passage 116 is flush with the top surface of the outer sidewall of the second blind passage 117 and higher than the top surface of the rectifying device 14, the top surface of the outer sidewall of the first rich combustion flame 118 and the second rich combustion
  • the top surface of the outer side wall of the flame opening 119 is flush and higher than the top surface of the outer side wall of the first blind passage 116 and the top surface of the outer side wall of the second blind passage 117, the top surface of the outer side wall of the first blind passage 116 and the second blind passage 117
  • the height difference between the top surface of the outer side wall and the top surface of the rectifying device 14 is H1
  • the top surface of the outer side wall of the first rich combustion flame port 118 and the top surface of the outer side wall of the second rich combustion flame port 119 are respectively connected to the rectifying device 14
  • the height difference of the top surface is H2
  • the maximum width of the first blind channel 116 is equal to the maximum width of the second blind channel 117 and may be
  • a primary air conditioning plate may be provided at a front side of the rich combustion ejector inlet 131 and the light combustion ejector inlet 121 of the plurality of combustion units 1 to adjust the amount of air ejector.
  • the amount of air introduced by the rich combustion ejector inlet 131 and the light combustion ejector inlet 121 of each combustion unit 1 can be adjusted by the primary air conditioning plate, thereby further controlling the ratio of the amount of air and the amount of gas in the rich combustion ejector inlet 131 and The ratio of the amount of air that burns the ejector inlet 121 to the amount of gas.
  • the secondary air conditioning plate is disposed below the combustion unit 1 to adjust the amount of air in the combustion chamber, and the primary adjustment plate extends downward. And a pressure equalization chamber is defined between the secondary air conditioning plate.
  • the air generated by the blower of the combustion water heater flows through the pressure equalizing chamber to the rich combustion ejector inlet 131 and the light combustion ejector inlet 121, and the primary air amount entering the rich combustion ejector inlet 131 and the light combustion ejector inlet 121 through the pressure equalization chamber More uniform to improve the combustion effect.
  • the first rich combustion flame port 118 and the second rich combustion flame port 119 of the combustion unit 1 are respectively located on both sides of the plurality of light combustion flame ports 141 to form a light combustion flame in the middle, on both sides.
  • the purpose of reducing the flame temperature and controlling the emission of nitrogen oxides in the flue gas after combustion is achieved.
  • Structural stability reduces nitrogen oxide emissions.
  • the present invention also proposes a gas water heater including the burner of the above embodiment.
  • the gas water heater according to the embodiment of the present invention also has the above-described technical effects, that is, the gas water heater according to the embodiment of the present invention, by providing the burner of the above embodiment, thereby The temperature of the combustion flame can be lowered to reduce the emission of nitrogen oxides in the flue gas of the gas water heater.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

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Abstract

一种燃烧器和具有其的燃气热水器。燃烧器壳体（11）内具有第一浓燃烧腔（1111）、第二浓燃烧腔（1121）和淡燃烧腔（1141），燃烧器壳体（11）上设有第一浓燃烧焰口（118）和第二浓燃烧焰口（119）；整流装置（14）设置在淡燃烧开口（115）内且整流装置（14）上设有与淡燃烧腔（1141）连通的多个淡燃烧焰口（141）。整流装置（14）与淡燃烧开口（115）的两侧壁之间分别限定出第一盲道（116）和第二盲道（117），第一盲道（116）的外侧壁的顶面和第二盲道（117）的外侧壁的顶面分别与整流装置（14）的顶面的高度差为H1，第一浓燃烧焰口（118）的外侧壁的顶面和第二浓燃烧焰口（119）的外侧壁的顶面分别与整流装置（14）的顶面的高度差为H2，H2≥H1。

Description

燃烧器和具有其的燃气热水器 技术领域
本发明涉及家用电器技术领域，尤其涉及一种燃烧器和具有其的燃气热水器。
背景技术
由于生态环境日益恶化，使人类的健康受到越来越严重的危害。人们对空气的污染越来越重视。各个行业都在响应国家的号召，进行节能减排。受城镇燃气的快速发展，燃气热水器因其方便快捷，越来越受人们喜欢。而在现有的燃气热水器中，由于燃气的燃烧难免会产生有害气体，尤其是烟气中的氮氧化物含量较高，对环境污染严重。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明提出一种燃烧器，所述燃烧器能够减小烟气中氮氧化物的排放，减小环境污染。
本发明还提出了一种具有所述燃烧器的燃气热水器。
根据本发明第一方面实施例的燃烧器，包括至少一个燃烧单元，所述燃烧单元包括：燃烧器壳体，所述燃烧器壳体内具有第一浓燃烧腔、第二浓燃烧腔和淡燃烧腔，所述燃烧器壳体上设有与所述第一浓燃烧腔和所述第二浓燃烧腔连通的浓燃烧引射入口、与所述淡燃烧腔连通的淡燃烧引射入口、与所述第一浓燃烧腔连通的第一浓燃烧焰口、与所述第二浓燃烧腔连通的第二浓燃烧焰口以及与所述淡燃烧腔连通的淡燃烧开口；整流装置，所述整流装置设在所述淡燃烧开口内且所述整流装置上设有与所述淡燃烧腔连通的多个淡燃烧焰口，所述第一浓燃烧焰口和所述第二浓燃烧焰口分别位于所述多个淡燃烧焰口的两侧，所述整流装置与所述淡燃烧开口的两侧壁之间分别限定出第一盲道和第二盲道，所述第一盲道位于所述第一浓燃烧焰口和所述多个淡燃烧焰口之间，所述第二盲道位于所述第二浓燃烧焰口和所述多个淡燃烧焰口之间，
其中，所述第一盲道的外侧壁的顶面与第二盲道的外侧壁的顶面平齐且高于所述整流装置的顶面，所述第一浓燃烧焰口的外侧壁的顶面与所述第二浓燃烧焰口的外侧壁的顶面平齐且高于所述第一盲道的外侧壁的顶面和第二盲道的外侧壁的顶面，所述第一盲道的外侧壁的顶面和第二盲道的外侧壁的顶面分别与所述整流装置的顶面的高度差为H1，所述第一浓燃烧焰口的外侧壁的顶面和所述第二浓燃烧焰口的外侧壁的顶面分别与所述整流装置的顶面的高度差为H2，其中，H2≥H1。
由此，根据本发明实施例的燃烧器，燃烧单元的第一浓燃烧焰口和第二浓燃烧焰口分别 位于多个淡燃烧焰口的两侧，以形成中间为淡燃烧火焰，两侧为浓燃烧火焰的稳定火焰结构，达到降低火焰温度，控制燃烧后烟气中氮氧化物排放的目的。其中，第一盲道的外侧壁的顶面和第二盲道的外侧壁的顶面分别与整流装置的顶面的高度差为H1，第一浓燃烧焰口的外侧壁的顶面和第二浓燃烧焰口的外侧壁的顶面分别与整流装置的顶面的高度差为H2，H2≥H1。从而可控制浓燃烧焰口和淡燃烧焰口的气流稳定性，进而提高燃烧火焰的稳定性，以进一步地减小烟气中氮氧化物的排放。
另外，根据本发明实施例的燃烧器还可以具有如下附加的技术特征：
根据本发明的一些实施例，所述第一盲道的最大宽度与所述第二盲道的最大宽度相等且为W2，所述第一浓燃烧焰口的最大宽度与所述第二浓燃烧焰口的最大宽度相等且为W1，其中，W2≥W1。
根据本发明的一些实施例，所述整流装置的两外侧壁之间的距离为W3，所述整流装置的高度为H，其中，W3/H＝0.03～0.30。
根据本发明的一些实施例，燃气完全燃烧的理论空气量与燃气量的比值为ΦS，所述浓燃烧引射入口的空气量和燃气量的混合比值为ΦR，其中，ΦR/ΦS＝0.5～0.8。
根据本发明的一些实施例，燃气完全燃烧的理论空气量与燃气量的比值为ΦS，所述淡燃烧引射入口的空气量和燃气量的混合比值为ΦL，其中，ΦL/ΦS＝1.5～2.0。
根据本发明的一些实施例，所述燃烧器壳体包括：第一淡燃烧壳部和第二淡燃烧壳部，所述第一淡燃烧壳部与所述第二淡燃烧壳部相连且共同限定出所述淡燃烧腔和所述淡燃烧开口，所述整流装置设在所述第一淡燃烧壳部和所述第二淡燃烧壳部之间且位于所述淡燃烧开口处；第一浓燃烧壳部和第二浓燃烧壳部，所述第一浓燃烧壳部与所述第一淡燃烧壳部相连且位于所述第一淡燃烧壳部的外侧，所述第一浓燃烧壳部与所述第一淡燃烧壳部共同限定出所述第一浓燃烧腔和所述第一浓燃烧焰口，所述第二浓燃烧壳部与所述第二淡燃烧壳部相连且位于所述第二淡燃烧壳部的外侧，所述第二浓燃烧壳部与所述第二淡燃烧壳部共同限定出所述第二浓燃烧腔和所述第二浓燃烧焰口。
可选地，所述燃烧器壳体还包括：多个连接片，每个所述连接片的两端分别与所述第一浓燃烧壳部和所述第二浓燃烧壳部相连，多个所述连接片将所述第一浓燃烧焰口、第二浓燃烧焰口和所述淡燃烧焰口中的每一个分隔成多段。
可选地，所述燃烧器壳体包括：淡燃烧引射器，所述淡燃烧引射器与所述第一淡燃烧壳部和所述第二淡燃烧壳部相连，所述淡燃烧引射入口设在所述淡燃烧引射器上；浓燃烧引射器，所述浓燃烧引射器与所述第一浓燃烧壳部和所述第二浓燃烧壳部相连且与第一浓燃烧腔和第二浓燃烧腔连通，所述浓燃烧引射器位于所述淡燃烧引射器上方，所述浓燃烧引射入口设在所述浓燃烧引射器上。
根据本发明的一些实施例，所述燃烧单元还包括：用于向所述浓燃烧引射入口提供燃气的浓燃烧喷嘴，所述浓燃烧喷嘴与所述浓燃烧引射器入口相对应；用于向所述淡燃烧引射入口提供燃气的淡燃烧喷嘴，所述淡燃烧喷嘴与所述淡燃烧引射器入口相对应。
可选地，所述浓燃烧喷嘴的喷气口的横截面积S3与所述淡燃烧喷嘴的喷气口的横截面积S4满足：S3/S4＝0.25～0.65。
可选地，所述燃烧器还包括：一次空气调节板，所述一次空气调节板设在所述浓燃烧引射器的入口和所述淡燃烧引射器的入口的前侧以调节空气引射量。
进一步地，所述燃烧器还包括：二次空气调节板，所述二次空气调节板设在所述燃烧单元的下方，所述一次调节板向下延伸且与所述二次空气调节板之间限定出均压室。
根据本发明的一些实施例，所述燃烧单元为多个且沿所述燃烧单元的宽度方向排列。
根据本发明第二方面实施例的具有上述实施例的燃烧器的燃气热水器。
由于根据本发明上述实施例的燃烧器具有上述技术效果，因此，本发明实施例的燃气热水器也具有上述技术效果，即根据本发明实施例的燃气热水器，通过设置上述实施例的燃烧器，从而可提高火焰结构稳定性，降燃烧火焰的温度，减小燃气热水器的烟气中氮氧化物的排放。
本发明的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
图1是根据本发明实施例的燃烧器的燃烧单元的一个角度的结构示意图；
图2是根据本发明实施例的燃烧器的燃烧单元的另一个角度的结构示意图；
图3是图2中沿A-A的剖视图；
图4是根据本发明实施例的燃烧器的燃烧单元的俯视图；
图5是根据本发明实施例的燃烧器的燃烧单元爆炸图；
图6是根据本发明另一个实施例的燃烧器的燃烧单元的结构示意图；
图7是图6中沿B-B线的剖视图；
图8是图7中C部放大图。
附图标记：
1：燃烧单元；
11：燃烧器壳体，111：第一浓燃烧壳部,1111：第一浓燃烧腔，112：第二浓燃烧壳部，1121：第二浓燃烧腔，113：第一淡燃烧壳部，114：第二淡燃烧壳部，1141：淡燃烧腔，115：淡燃烧开口，116：第一盲道，117：第二盲道，118：第一浓燃烧焰口，119：第二浓燃烧焰 口；
12：淡燃烧引射器，121：淡燃烧引射入口；
13：浓燃烧引射器，131：浓燃烧引射入口；
14：整流装置，141：淡燃烧焰口；
15：浓燃烧喷嘴；
16：淡燃烧喷嘴；
17：连接片。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
下面参考附图描述根据本发明实施例的燃烧器。
结合图1-图8所示，根据本发明实施例的燃烧器可以包括至少一个燃烧单元1，每个燃烧单元1包括燃烧器壳体11和整流装置14。
燃烧器壳体11内具有第一浓燃烧腔1111、第二浓燃烧腔1121和淡燃烧腔1141，燃烧器壳体11上设有与第一浓燃烧腔1111和第二浓燃烧腔1121连通的浓燃烧引射入口131、与淡燃烧腔1141连通的淡燃烧引射入口121、与第一浓燃烧腔1111连通的第一浓燃烧焰口118、与第二浓燃烧腔1121连通的第二浓燃烧焰口119以及与淡燃烧腔1141连通的淡燃烧 开口115。
整流装置14设在淡燃烧开口115内且整流装置14上设有与淡燃烧腔1141连通的多个淡燃烧焰口141，第一浓燃烧焰口118和第二浓燃烧焰口119分别位于多个淡燃烧焰口141的两侧，整流装置14与淡燃烧开口115的两侧壁之间可分别限定出第一盲道116和第二盲道117，第一盲道116位于第一浓燃烧焰口118和多个淡燃烧焰口141之间，第二盲道117位于第二浓燃烧焰口119和多个淡燃烧焰口141之间。
换言之，燃烧器可以包括一个或者多个燃烧单元1，例如，燃烧器可以包括多个燃烧单元1，多个燃烧单元1并排设置且沿燃烧单元1的宽度方向排列。所述宽度方向即如图5和图7所示的左右方向。每个燃烧单元1包括燃烧器壳体11和整流装置14，整流装置14设在燃烧器壳体11内。
燃烧器壳体11内限定出第一浓燃烧腔1111、第二浓燃烧腔1121和淡燃烧腔1141，燃烧器壳体11上设有浓燃烧引射入口131、淡燃烧引射入口121、第一浓燃烧焰口118、第二浓燃烧焰口119和淡燃烧开口115，浓燃烧引射入口131用于浓燃烧引入空气，淡燃烧引射入口121用于淡燃烧引入空气，结合图1-图3以及图6所示，浓燃烧引射入口131位于淡燃烧引射入口121的上方。
浓燃烧引射入口131分别与第一浓燃烧腔1111和第二浓燃烧腔1121连通，第一浓燃烧腔1111与第一浓燃烧焰口118连通，第二浓燃烧腔1121与第二浓燃烧焰口119连通，淡燃烧引射入口121与淡燃烧腔1141连通且淡燃烧腔1141与淡燃烧开口115连通。
这样，空气从浓燃烧引射入口131引入，并与燃气混合后形成浓燃烧气体，混合后的浓燃烧气体可分别进入第一浓燃烧腔1111和第二浓燃烧腔1121，并分别通向第一浓燃烧焰口118和第二浓燃烧焰口119。淡燃烧引射入口121引入的空气与燃气混合后形成淡燃烧气体，并流向淡燃烧腔1141。结合图5-图8所示，整流装置14设在淡燃烧开口115内，整流装置14上设有多个淡燃烧焰口141，淡燃烧腔1141分别与多个淡燃烧焰口141连通，淡燃烧气体可通向多个淡燃烧焰口141。
结合图4、图5、图7和图8所示，第一浓燃烧焰口118和第二淡燃烧焰口141分别设在淡燃烧开口115的两侧，多个淡燃烧焰口141位于第一浓燃烧焰口118和第二浓燃烧焰口119之间，这样，在每个燃烧单元1的顶端可形成中间为淡燃烧焰口141，两侧为浓燃烧焰口的结构。也就是说，燃烧单元1在燃烧时可形成中间淡火焰，两侧浓火焰的火焰结构，从而可提高火焰的稳定性，降低燃烧火焰温度，达到控制烟气中氮氧化物排放的目的。
如图7和图8所示，整流装置14设在淡燃烧开口115内且与淡燃烧开口115的两侧壁相连，并与两个侧壁分别限定出第一盲道116和第二盲道117，第一盲道116和第二盲道117与淡燃烧腔1141均不连通。通过第一盲道116可将第一浓燃烧焰口118和多个淡燃烧焰口 141间隔开，通过第二盲道117可将第二浓燃烧焰口119和多个淡燃烧焰口141间隔开，从而可使得火焰结构更加稳定，有效控制烟气中氮氧化物的排放。
其中，第一盲道116的外侧壁的顶面与第二盲道117的外侧壁的顶面平齐且高于整流装置14的顶面，第一浓燃烧焰口118的外侧壁的顶面与第二浓燃烧焰口119的外侧壁的顶面平齐且高于第一盲道116的外侧壁的顶面和第二盲道117的外侧壁的顶面，第一盲道116的外侧壁的顶面和第二盲道117的外侧壁的顶面分别与整流装置14的顶面的高度差为H1，第一浓燃烧焰口118的外侧壁的顶面和第二浓燃烧焰口119的外侧壁的顶面分别与整流装置14的顶面的高度差为H2，其中，H2≥H1。从而可控制浓燃烧焰口和淡燃烧焰口141的气流稳定性，进而提高燃烧火焰的稳定性，以进一步地减小烟气中氮氧化物的排放。
由此，根据本发明实施例的燃烧器，燃烧单元1的第一浓燃烧焰口118和第二浓燃烧焰口119分别位于多个淡燃烧焰口141的两侧，以形成中间为淡燃烧火焰，两侧为浓燃烧火焰的稳定火焰结构，达到降低火焰温度，控制燃烧后烟气中氮氧化物排放的目的。
其中，第一盲道116的外侧壁的顶面和第二盲道117的外侧壁的顶面分别与整流装置14的顶面的高度差为H1，第一浓燃烧焰口118的外侧壁的顶面和第二浓燃烧焰口119的外侧壁的顶面分别与整流装置14的顶面的高度差为H2，H2≥H1。从而可控制浓燃烧焰口和淡燃烧焰口141的气流稳定性，进而提高燃烧火焰的稳定性，以进一步地减小烟气中氮氧化物的排放。
在本发明的一些实施例中，第一盲道116的最大宽度与第二盲道117的最大宽度可以相等且为W2，第一浓燃烧焰口118的最大宽度与第二浓燃烧焰口119的最大宽度相等且为W1，其中，W2≥W1。从而进一步地保证燃烧火焰的结构稳定性。具体地，结合如图7和图8所示，第一浓燃烧焰口118的最大宽度即第一浓燃烧焰口118沿左右方向的最大窄边宽度，第二浓燃烧焰口119的最大宽度即第二浓燃烧焰口119的沿左右方向的最大窄边宽度。第一盲道116的最大宽度与第二盲道117的最大宽度即第一盲道116和第二盲道117的沿左右方向的最大窄边宽度。第一盲道116和第二盲道117的最大窄边宽度相等且为W2，第一浓燃烧焰口118和第二浓燃烧焰口119的最大窄边宽度相等且为W1，第一盲道116和第二盲道117的最大窄边宽度W2大于等于第一浓燃烧焰口118和第二浓燃烧焰口119的最大窄边宽度W1。
在本发明的一些实施例中，淡燃烧焰口141的最大宽度可以为W3，整流装置14的高度可以为H，其中，W3/H＝0.03～0.30。具体地，如图4和图5所示，整流装置14可以包括多个整流板，多个整流板之间形成多条细缝型通路，多个淡燃烧焰口141形成在每条细缝型通路的顶端，其中，淡燃烧焰口141的最大宽度W3即每条细缝型通路的顶端开口的沿左右方向的最大窄边宽度，整流装置14的高度H即每条细缝型通路的高度。优选地，W3/H＝0.05～0.20。从而进一步地保证浓燃烧火焰和淡燃烧火焰的结构稳定性。
在本发明的一些实施例中，燃气完全燃烧的理论空气量与燃气量的比值可以为ΦS，浓燃烧引射入口131的空气量和燃气量的混合比值可以为ΦR，其中，ΦR/ΦS＝0.5～0.8。
ΦR/ΦS即表示浓燃烧的一次空气率，通过控制浓燃烧的一次空气率，从而可使得燃气和空气充分混合并具有良好的燃烧比例，以使得浓燃烧时燃气能够充分燃烧，并形成稳定的火焰结构，降低烟气中氮氧化物的排放。
在本发明的一些实施例中，燃气完全燃烧的理论空气量与燃气量的比值可以为ΦS，淡燃烧引射入口121的空气量和燃气量的混合比值可与为ΦL，其中，ΦL/ΦS＝1.5～2.0。
ΦR/ΦS即表示淡燃烧的一次空气率，通过控制浓燃烧和淡燃烧的一次空气率，从而使得燃气和空气充分混合并具有良好的燃烧比例，以使得淡燃烧时燃气能够充分燃烧，形成稳定的火焰结构，降低烟气中氮氧化物的排放。
在本发明的一些实施例中，如图5、图7和图8所示，燃烧器壳体11可以包括第一淡燃烧壳部113和第二淡燃烧壳部114以及第一浓燃烧壳部111和第二浓燃烧壳部112，第一淡燃烧壳部113与第二淡燃烧壳部114相连且共同限定出淡燃烧腔1141和淡燃烧开口115，整流装置14设在第一淡燃烧壳部113和第二淡燃烧壳部114之间且位于淡燃烧开口115处。
第一浓燃烧壳部111与第一淡燃烧壳部113相连且位于第一淡燃烧壳部113的外侧，第一浓燃烧壳部111与第一淡燃烧壳部113共同限定出第一浓燃烧腔1111和第一浓燃烧焰口118，第二浓燃烧壳部112与第二淡燃烧壳部114相连且位于第二淡燃烧壳部114的外侧，第二浓燃烧壳部112与第二淡燃烧壳部114共同限定出第二浓燃烧腔1121和第二浓燃烧焰口119。
如图7和图8所示，第一浓燃烧焰口118和第二浓燃烧焰口119分别位于淡燃烧开口115的两侧，整流装置14设在淡燃烧开口115处且整流装置14上设有多个淡燃烧焰口141，多个淡燃烧焰口141设在整流装置14的顶端，第一浓燃烧焰口118和第二浓燃烧焰口119分别位于多个淡燃烧焰口141的两侧，从而有利于形成中间淡淡燃烧火焰，两侧浓燃烧火焰的稳定火焰结构，以提高火焰的稳定性，降低火焰温度，减少氮氧化物的排放。
有利地，燃烧器壳体11还可以包括多个连接片17，每个连接片17的两端分别与第一浓燃烧壳部111和第二浓燃烧壳部112相连，多个连接片17将第一浓燃烧焰口118、第二浓燃烧焰口119和淡燃烧焰口141中的每一个分隔成多段。由此，可将淡燃烧火焰和浓燃烧火焰分隔为多段，从而可增大火焰的散热面积，降低火焰温度。
可选地，燃烧器壳体11还可以包括淡燃烧引射器12和浓燃烧引射器13，淡燃烧引射器12与第一淡燃烧壳部113和第二淡燃烧壳部114相连，淡燃烧引射入口121设在淡燃烧器上；浓燃烧引射器13与第一浓燃烧壳部111和第二浓燃烧壳部112相连且分别与第一浓燃烧腔1111和第二浓燃烧腔1121连通，浓燃烧引射器13位于淡燃烧引射器12上方，浓燃 烧引射入口131设在浓燃烧引射器13上。由此，通过浓燃烧引射器13可将燃气和引入的空气引导至第一浓燃烧腔1111和第二浓燃烧腔1121，燃气与空气在第一浓燃烧腔1111和第二浓燃烧腔1121内混合，混合之后的气体通向第一浓燃烧焰口118和第二浓燃烧焰口119。于此同时，通过淡燃烧引射器12可将燃气和引入的空气引导至淡燃烧腔1141，燃气和空气可在淡燃烧腔1141内混合，混合后的燃气和空气通向淡燃烧焰口141。
在本发明的一些实施例中，燃烧单元1还可以包括浓燃烧喷嘴15和淡燃烧喷嘴16，浓燃烧喷嘴15可用于向浓燃烧引射入口131提供燃气，淡燃烧喷嘴16可用于向淡燃烧引射入口121提供燃气的淡燃烧喷嘴16，浓燃烧喷嘴15与浓燃烧引射器13入口连通，淡燃烧喷嘴16与淡燃烧引射入口121相连通。由此，通过浓燃烧喷嘴15向浓燃烧引射入口131喷入燃气，燃气与浓燃烧引射器13引入的空气混合并通向第一浓燃烧腔1111和第二浓燃烧腔1121。通过淡燃烧喷嘴16可向淡燃烧引射入口121喷入燃气，燃气与淡燃烧引射器12引入的空气混合并通向淡燃烧腔1141。
可选地，浓燃烧喷嘴15的喷气口的横截面积S3与淡燃烧喷嘴16的喷气口的横截面积S4可以满足：S3/S4＝0.25～0.65。也就是说，浓燃烧喷嘴15的喷气口的横截面积是淡燃烧喷嘴16的喷气口的横截面积的0.25～0.65倍，由此，通过设计浓燃烧喷嘴15和淡燃烧喷嘴16的喷气口的横截面积比例，从而可控制浓燃烧和淡燃烧的燃气量和空气量的比例，使得淡燃烧引射入口121引入的空气量与淡燃烧喷嘴16喷入的燃气量，以及浓燃烧引射入口131引入的空气量和浓燃烧喷嘴15喷入的燃气量的具有良好的比例，以使得浓燃烧和浓燃烧的燃烧更加充分，减少氮氧化物的排放。
可选地，燃烧器还可以包括一次空气调节板，一次空气调节板设在浓燃烧引射入口131和淡燃烧引射入口121的前侧以调节空气引射量。由此，通过一次空气调节板可调节引入浓燃烧引射入口131和淡燃烧引射入口121的空气量，从而进一步控制浓燃烧引射入口131的空气量和燃气量的比例以及淡燃烧引射入口121的空气量和燃气量的比例。
进一步地，燃烧器还可以包括二次空气调节板，二次空气调节板设在燃烧单元1的下方，一次调节板向下延伸且与二次空气调节板之间限定出均压室。具体地，一次空气调节板设在浓燃烧引射入口131和淡燃烧引射入口121的前侧调节空气引射量，二次空气调节板设在燃烧单元1的下方以调节燃烧室的空气量，一次调节板的下端向下延伸并与二次空气调节板之间限定出均压室，这样，燃烧热水器的鼓风机产生的空气经过均压室流向浓燃烧引射入口131和淡燃烧引射入口121，使得进入浓燃烧引射入口131和淡燃烧引射入口121的一次空气量更为均匀，以提高燃烧效果。
下面参考附图详细描述根据本发明实施例的燃烧器的一个具体示例，需要说明的是，值 得理解的是，下述描述只是示例性说明，而不能理解为对本发明实施例的限制。
结合图1-图8所示，根据本发明实施例的燃烧器可以包括多个燃烧单元1、一次空气调节板和二次空气调节板，多个燃烧单元1并排设置且沿燃烧单元1的宽度方向排列。
具体地，每个燃烧单元1包括燃烧器壳体11、整流装置14、浓燃烧引射器13、淡燃烧引射器12、浓燃烧喷嘴15和淡燃烧喷嘴16。如图5、图7和图8所示，燃烧器壳体11包括第一淡燃烧壳部113和第二淡燃烧壳部114以及第一浓燃烧壳部111和第二浓燃烧壳部112，第一淡燃烧壳部113与第二淡燃烧壳部114相连且共同限定出淡燃烧腔1141和淡燃烧开口115，整流装置14设在第一淡燃烧壳部113和第二淡燃烧壳部114之间且位于淡燃烧开口115处。
第一浓燃烧壳部111与第一淡燃烧壳部113相连且位于第一淡燃烧壳部113的外侧，第一浓燃烧壳部111与第一淡燃烧壳部113共同限定出第一浓燃烧腔1111和第一浓燃烧焰口118，第二浓燃烧壳部112与第二淡燃烧壳部114相连且位于第二淡燃烧壳部114的外侧，第二浓燃烧壳部112与第二淡燃烧壳部114共同限定出第二浓燃烧腔1121和第二浓燃烧焰口119。
第一浓燃烧焰口118和第二浓燃烧焰口119分别位于淡燃烧开口115的两侧，整流装置14设在淡燃烧开口115处且整流装置14上设有多个淡燃烧焰口141，多个淡燃烧焰口141设在整流装置14的顶端，第一浓燃烧焰口118和第二浓燃烧焰口119分别位于多个淡燃烧焰口141的两侧，从而有利于形成中间淡燃烧火焰，两侧浓燃烧火焰的稳定火焰结构，以提高火焰的稳定性，降低火焰温度，减少氮氧化物的排放。
淡燃烧引射器12与第一淡燃烧壳部113和第二淡燃烧壳部114相连，淡燃烧引射入口121设在淡燃烧器上，浓燃烧引射器13与第一浓燃烧壳部111和第二浓燃烧壳部112相连且分别与第一浓燃烧腔1111和第二浓燃烧腔1121连通，浓燃烧引射器13位于淡燃烧引射器12上方，浓燃烧引射入口131设在浓燃烧引射器13上。由此，通过浓燃烧引射器13可将燃气和引入的空气引导至第一浓燃烧腔1111和第二浓燃烧腔1121，燃气与空气混合后可通向第一浓燃烧焰口118和第二浓燃烧焰口119。于此同时，通过淡燃烧引射器12可将燃气和引入的空气引导至淡燃烧腔1141，燃气和空气混合后通向淡燃烧焰口141。
浓燃烧喷嘴15可用于向浓燃烧引射入口131提供燃气，淡燃烧喷嘴16可用于向淡燃烧引射入口121提供燃气的淡燃烧喷嘴16，浓燃烧喷嘴15与浓燃烧引射器13入口连通，淡燃烧喷嘴16与淡燃烧引射入口121相连通。由此，通过浓燃烧喷嘴15向浓燃烧引射入口131喷入燃气，燃气与浓燃烧引射器13引入的空气混合后通向第一浓燃烧腔1111和第二浓燃烧腔1121。通过淡燃烧喷嘴16可向淡燃烧引射入口121喷入燃气，燃气与淡燃烧引射器12引入的空气混合后通向淡燃烧腔1141。
其中，浓燃烧引射入口131的横截面积S1与淡燃烧引射入口121的横截面积S2满足：S1/S2＝0.20～0.40，浓燃烧喷嘴15的喷气口的横截面积S3与淡燃烧喷嘴16的喷气口的横截面积S4满足：S3/S4＝0.25～0.65。由此，可控制浓燃烧引射入口131的燃气量与空气的比例以及淡燃烧引射入口121的空气量和燃气量的比例，进而控制浓燃烧的一次空气率和淡燃烧的一次空气率。
燃气完全燃烧的理论空气量与燃气量的比值可以为ΦS，浓燃烧引射入口131的空气量和燃气量的混合比值为ΦR，淡燃烧引射入口121的空气量和燃气量的混合比值为ΦL，浓燃烧一次空气率为ΦR/ΦS且满足ΦR/ΦS＝0.5～0.8，淡燃烧一次空气率为ΦL/ΦS且满足
ΦL/ΦS＝1.5～2.0。由此，通过设计浓燃烧引射入口131与淡燃烧引射入口121的入口面积比例，浓燃烧喷嘴15的喷气口的横截面积与淡燃烧喷嘴16的喷气口的横截面积比例，可控制浓燃烧和淡燃烧的一次空气率，从而使得燃气和空气充分混合并具有良好的燃烧比例，以形成稳定的火焰结构，并降低烟气中氮氧化物的排放。
如图7和图8所示，整流装置14与淡燃烧开口115的两侧壁之间可分别限定出第一盲道116和第二盲道117，第一盲道116位于第一浓燃烧焰口118和多个淡燃烧焰口141之间，第二盲道117位于第二浓燃烧焰口119和多个淡燃烧焰口141之间。
第一盲道116的外侧壁的顶面与第二盲道117的外侧壁的顶面平齐且高于整流装置14的顶面，第一浓燃烧焰口118的外侧壁的顶面与第二浓燃烧焰口119的外侧壁的顶面平齐且高于第一盲道116的外侧壁的顶面和第二盲道117的外侧壁的顶面，第一盲道116的外侧壁的顶面和第二盲道117的外侧壁的顶面分别与整流装置14的顶面的高度差为H1，第一浓燃烧焰口118的外侧壁的顶面和第二浓燃烧焰口119的外侧壁的顶面分别与整流装置14的顶面的高度差为H2，第一盲道116的最大宽度与第二盲道117的最大宽度相等且可以为W2，第一浓燃烧焰口118的最大宽度与第二浓燃烧焰口119的最大宽度相等且可以为W1，其中，H2≥H1，W2≥W1。从而有利于控制浓燃烧焰口和淡燃烧焰口141的气流稳定性，进而提高燃烧火焰的稳定性。
淡燃烧焰口141的最大宽度可以为W3，整流装置14的高度可以为H，其中，W3/H＝0.03～0.30。优选地，W3/H＝0.05～0.20。从而进一步地保证浓燃烧火焰和淡燃烧火焰的结构稳定性。
一次空气调节板可设在多个燃烧单元1的浓燃烧引射入口131和淡燃烧引射入口121的前侧以调节空气引射量。通过一次空气调节板可调节每个燃烧单元1的浓燃烧引射入口131和淡燃烧引射入口121引入的空气量，从而进一步控制浓燃烧引射入口131的空气量和燃气量的比例以及淡燃烧引射入口121的空气量和燃气量的比例。
二次空气调节板设在燃烧单元1的下方，以调节燃烧室的空气量，一次调节板向下延伸 且与二次空气调节板之间限定出均压室。燃烧热水器的鼓风机产生的空气经过均压室流向浓燃烧引射入口131和淡燃烧引射入口121，通过均压室可使得进入浓燃烧引射入口131和淡燃烧引射入口121的一次空气量更为均匀，以提高燃烧效果。
由此，根据本发明实施例燃烧器，燃烧单元1的第一浓燃烧焰口118和第二浓燃烧焰口119分别位于多个淡燃烧焰口141的两侧，以形成中间为淡燃烧火焰，两侧为浓燃烧火焰的稳定火焰结构，达到了降低火焰温度，控制燃烧后烟气中氮氧化物排放的目的。而且燃烧器的浓燃烧引射入口131的横截面积S1与淡燃烧引射入口121的横截面积S2满足：S1/S2＝0.20～0.40，浓燃烧喷嘴15的喷气口的横截面积S3与淡燃烧喷嘴16的喷气口的横截面积S4满足：S3/S4＝0.25～0.65。并限定燃烧器壳体11的结构以及浓燃烧和淡燃烧的一次空气率，从而使得浓燃烧引射入口131和淡燃烧引射入口121引入的空气与燃气形成良好的比例，以进一步控制燃烧火焰的结构稳定性，减少氮氧化物的排放。
此外本发明还提出了一种包括上述实施例的燃烧器的燃气热水器。
由于根据本发明上述实施例的燃烧器具有上述技术效果，因此，本发明实施例的燃气热水器也具有上述技术效果，即根据本发明实施例的燃气热水器，通过设置上述实施例的燃烧器，从而可降燃烧火焰的温度，减小燃气热水器的烟气中氮氧化物的排放。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (14)

  1. 一种燃烧器，其特征在于，包括至少一个燃烧单元，所述燃烧单元包括：
    燃烧器壳体，所述燃烧器壳体内具有第一浓燃烧腔、第二浓燃烧腔和淡燃烧腔，所述燃烧器壳体上设有与所述第一浓燃烧腔和所述第二浓燃烧腔连通的浓燃烧引射入口、与所述淡燃烧腔连通的淡燃烧引射入口、与所述第一浓燃烧腔连通的第一浓燃烧焰口、与所述第二浓燃烧腔连通的第二浓燃烧焰口以及与所述淡燃烧腔连通的淡燃烧开口；
    整流装置，所述整流装置设在所述淡燃烧开口内且所述整流装置上设有与所述淡燃烧腔连通的多个淡燃烧焰口，所述第一浓燃烧焰口和所述第二浓燃烧焰口分别位于所述多个淡燃烧焰口的两侧，所述整流装置与所述淡燃烧开口的两侧壁之间分别限定出第一盲道和第二盲道，所述第一盲道位于所述第一浓燃烧焰口和所述多个淡燃烧焰口之间，所述第二盲道位于所述第二浓燃烧焰口和所述多个淡燃烧焰口之间，
    其中，所述第一盲道的外侧壁的顶面与第二盲道的外侧壁的顶面平齐且高于所述整流装置的顶面，所述第一浓燃烧焰口的外侧壁的顶面与所述第二浓燃烧焰口的外侧壁的顶面平齐且高于所述第一盲道的外侧壁的顶面和第二盲道的外侧壁的顶面，所述第一盲道的外侧壁的顶面和第二盲道的外侧壁的顶面分别与所述整流装置的顶面的高度差为H1，所述第一浓燃烧焰口的外侧壁的顶面和所述第二浓燃烧焰口的外侧壁的顶面分别与所述整流装置的顶面的高度差为H2，其中，H2≥H1。
  2. 根据权利要求1所述的燃烧器，其特征在于，所述第一盲道的最大宽度与所述第二盲道的最大宽度相等且为W2，所述第一浓燃烧焰口的最大宽度与所述第二浓燃烧焰口的最大宽度相等且为W1，其中，W2≥W1。
  3. 根据权利要求1所述的燃烧器，其特征在于，所述整流装置的两外侧壁之间的距离为W3，所述整流装置的高度为H，其中，W3/H＝0.03～0.30。
  4. 根据权利要求1所述的燃烧器，其特征在于，燃气完全燃烧的理论空气量与燃气量的比值为ΦS，所述浓燃烧引射入口的空气量和燃气量的混合比值为ΦR，其中，
    ΦR/ΦS＝0.5～0.8。
  5. 根据权利要求1所述的燃烧器，其特征在于，燃气完全燃烧的理论空气量与燃气量的比值为ΦS，所述淡燃烧引射入口的空气量和燃气量的混合比值为ΦL，其中，
    ΦL/ΦS＝1.5～2.0。
  6. 根据权利要求1-5中任一项所述的燃烧器，其特征在于，所述燃烧器壳体包括：
    第一淡燃烧壳部和第二淡燃烧壳部，所述第一淡燃烧壳部与所述第二淡燃烧壳部相连且共同限定出所述淡燃烧腔和所述淡燃烧开口，所述整流装置设在所述第一淡燃烧壳部和所述第二淡燃烧壳部之间且位于所述淡燃烧开口处；
    第一浓燃烧壳部和第二浓燃烧壳部，所述第一浓燃烧壳部与所述第一淡燃烧壳部相连且位于所述第一淡燃烧壳部的外侧，所述第一浓燃烧壳部与所述第一淡燃烧壳部共同限定出所述第一浓燃烧腔和所述第一浓燃烧焰口，所述第二浓燃烧壳部与所述第二淡燃烧壳部相连且位于所述第二淡燃烧壳部的外侧，所述第二浓燃烧壳部与所述第二淡燃烧壳部共同限定出所述第二浓燃烧腔和所述第二浓燃烧焰口。
  7. 根据权利要求6所述的燃烧器，其特征在于，所述燃烧器壳体还包括：
    多个连接片，每个所述连接片的两端分别与所述第一浓燃烧壳部和所述第二浓燃烧壳部相连，多个所述连接片将所述第一浓燃烧焰口、第二浓燃烧焰口和所述淡燃烧焰口中的每一个分隔成多段。
  8. 根据权利要求6所述的燃烧器，其特征在于，所述燃烧器壳体包括：
    淡燃烧引射器，所述淡燃烧引射器与所述第一淡燃烧壳部和所述第二淡燃烧壳部相连，所述淡燃烧引射入口设在所述淡燃烧引射器上；
    浓燃烧引射器，所述浓燃烧引射器与所述第一浓燃烧壳部和所述第二浓燃烧壳部相连且与第一浓燃烧腔和第二浓燃烧腔连通，所述浓燃烧引射器位于所述淡燃烧引射器上方，所述浓燃烧引射入口设在所述浓燃烧引射器上。
  9. 根据权利要求1-5中任一项所述的燃烧器，其特征在于，所述燃烧单元还包括：
    用于向所述浓燃烧引射入口提供燃气的浓燃烧喷嘴，所述浓燃烧喷嘴与所述浓燃烧引射器入口相对应；
    用于向所述淡燃烧引射入口提供燃气的淡燃烧喷嘴，所述淡燃烧喷嘴与所述淡燃烧引射器入口相对应。
  10. 根据权利要求9所述的燃烧器，其特征在于，所述浓燃烧喷嘴的喷气口的横截面积S3与所述淡燃烧喷嘴的喷气口的横截面积S4满足：S3/S4＝0.25～0.65。
  11. 根据权利要求9所述的燃烧器，其特征在于，所述燃烧器还包括：
    一次空气调节板，所述一次空气调节板设在所述浓燃烧引射器的入口和所述淡燃烧引射器的入口的前侧以调节空气引射量。
  12. 根据权利要求11所述的燃烧器，其特征在于，所述燃烧器还包括：
    二次空气调节板，所述二次空气调节板设在所述燃烧单元的下方，所述一次调节板向下延伸且与所述二次空气调节板之间限定出均压室。
  13. 根据权利要求1-5中任一项所述的燃烧器，其特征在于，所述燃烧单元为多个且沿所述燃烧单元的宽度方向排列。
  14. 一种燃气热水器，包括根据权利要求1-13中任一项所述的燃烧器。
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ES2883333T3 (es) 2021-12-07

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