EP3597999B1 - Gas-wassererhitzer und brenner dafür - Google Patents

Gas-wassererhitzer und brenner dafür Download PDF

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Publication number
EP3597999B1
EP3597999B1 EP18020562.7A EP18020562A EP3597999B1 EP 3597999 B1 EP3597999 B1 EP 3597999B1 EP 18020562 A EP18020562 A EP 18020562A EP 3597999 B1 EP3597999 B1 EP 3597999B1
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EP
European Patent Office
Prior art keywords
fuel gas
section
injector
sectional area
cross
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18020562.7A
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English (en)
French (fr)
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EP3597999A1 (de
Inventor
Shangbing ZHANG
Zelin PAN
Luobiao LI
Chupeng LU
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Vanward New Electric Co Ltd
Original Assignee
Guangdong Vanward New Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201821154328.9U external-priority patent/CN208871621U/zh
Priority claimed from CN201810800675.2A external-priority patent/CN108916872A/zh
Application filed by Guangdong Vanward New Electric Co Ltd filed Critical Guangdong Vanward New Electric Co Ltd
Publication of EP3597999A1 publication Critical patent/EP3597999A1/de
Application granted granted Critical
Publication of EP3597999B1 publication Critical patent/EP3597999B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • F23D14/08—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 axial outlets at the burner head
    • 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
    • F23D14/62—Mixing devices; Mixing tubes
    • F23D14/64—Mixing devices; Mixing tubes with injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D23/00—Assemblies of two or more burners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2203/00—Gaseous fuel burners
    • F23D2203/10—Flame diffusing means
    • F23D2203/107—Flame diffusing means coated with catalysts

Definitions

  • the present invention relates to the technical field of water heaters, and discloses a gas water heater and a burner thereof.
  • the objective of the present invention is to overcome the deficiencies of the prior art and provide a gas water heater and a burner thereof, which achieves low pollution emissions by reducing NO X and CO emissions, and also achieves "low heat combustion" by controlling the number of combustive fuel gas-air mixing channels 11 in the burner, thus effectively increasing a turndown ratio.
  • a first aspect of the present invention provides a burner comprising an injector and a fire hole plate, wherein the injector is internally provided with at least two non-communicating parallel fuel gas-air mixing channels, one end of the injector is provided with at least two injection holes that are respectively in communication with the fuel gas-air mixing channels in one-to-one correspondence, the other end of the injector is provided with at least two jet holes that are respectively in communication with the fuel gas-air mixing channels in one-to-one correspondence, the fire hole plate is arranged covering the end of the injector that provides the jet holes, and there is provided a plurality of fire holes opened on the fire hole plate above each jet hole.
  • the injector is provided with a water flow channel that is disposed adjacent to the jet hole for a flow of cooling water.
  • the fuel gas-air mixing channel is T-shaped in general, and the fuel gas-air mixing channel includes a converging section, a mixing section, and a diverging section which are sequentially communicated along a fuel gas-air flow direction, wherein the converging section has a tapered shape that gradually tapers in the fuel gas-air flow direction, a cross-sectional area of an inlet of the converging section is 3-6 times a cross-sectional area of an outlet of the converging section; a cross-sectional area of the mixing section along the fuel gas-air flow direction gradually increases, and a cross-sectional area of an outlet of the mixing section is 2-5 times a cross-sectional area of an inlet of the mixing section; and the diverging section is triangular-shaped in general along the fuel-gas air flow direction, a cross-sectional area of an inlet of the diverging section is smaller than a cross-sectional area of an outlet of the diverging section, and an intermediate section of the diverging section is provided with a constricted opening.
  • the cross-sectional area of the inlet of the converging section is four times the cross-sectional area of the outlet of the converging section, and the cross-sectional area of the outlet of the mixing section is three times the cross-sectional area of the inlet of the mixing section.
  • the lengths of the converging section, the mixing section, and the diverging section along the fuel gas-air flow direction are respectively set to A, B and C, wherein B>C>A, B is 3-6 times of A, and B is 1.5-3.5 times of C.
  • a surface of the fire hole plate is provided with a catalyst.
  • the injector is formed by folding and connecting a structurally symmetrical first casing towards opposite sides along a center line thereof, wherein the first casing is provided with at least two first pressing grooves on one side besides the center line, and is provided with at least two second pressing grooves which are in one-to-one correspondence with the first pressing grooves on the other side besides the center line; and after the first casing is folded towards opposite sides, the first pressing groove (131) and the second pressing groove facing each other form the fuel gas-air mixing channel.
  • the injector is formed by assembling a second casing and a third casing having a same structure, wherein the second casing is provided with at least two third pressing grooves, the third casing is provided with at least two fourth pressing grooves which are in one-to-one correspondence with the third pressing grooves, and the third pressing groove and the fourth pressing groove facing each other form the fuel gas-air mixing channel.
  • the end of the injector adjacent to the jet holes is provided with an outwardly extending flange, an engagement groove is disposed at an edge of the fire hole plate, and the flange is inserted into the engagement groove to connect the fire hole plate and the injector.
  • a second aspect of the present invention provides a gas water heater comprising the burner of any of the above.
  • the present invention provides a burner and a gas water heater comprising the same, where the burner is provided with at least two non-communicating fuel gas-air mixing channels with at least two corresponding independent injection holes.
  • the burner is provided with at least two non-communicating fuel gas-air mixing channels with at least two corresponding independent injection holes.
  • more air can be introduced by the fuel gas, so that the fuel gas combustion is more sufficient, thereby reducing the emission of NO X and CO in the combustion process.
  • the number of combustive fuel gas-air mixing channels in the burner is controllable, which can effectively increase a turndown ratio and achieve low heat combustion, thereby ultimately meeting various requirements of the customers for bath temperature.
  • an embodiment of the first aspect of the present invention provides a burner including an injector 10 and a fire hole plate 20, where the injector 10 is internally provided with at least two non-communicating parallel fuel gas-air mixing channels 11.
  • One end of the injector 10 is provided with at least two injection holes 111 that are respectively in communication with the fuel gas-air mixing channels 11 in one-to-one correspondence
  • the other end of the injector 10 is provided with at least two jet holes 112 that are respectively in communication with the fuel gas-air mixing channels 11 in one-to-one correspondence.
  • the fire hole plate 20 is arranged covering the end of the injector 10 that provides the jet holes 112. Above each jet hole 112, there is provided a plurality of fire holes 21 opened on the fire hole plate 20.
  • the injector 10 of the present embodiment is internally provided with two non-communicating fuel gas-air mixing channels 11, each of which is provided with the injection hole 111 and the jet hole 112.
  • fuel gas enters the fuel gas-air mixing channel 11 from the injection hole 111; based on a Venturi principle, the fuel gas introduces air from the injection hole 111 into the fuel gas-air mixing channel 11.
  • the fuel gas and air are uniformly mixed in the fuel gas-air mixing channel 11 and then jet out from the jet hole 112 to be stably and uniformly burned above the fire holes 21.
  • the injector 10 of the present invention is provided with at least two non-communicating and independent fuel gas-air mixing channels 11, and each fuel gas-air mixing channel 11 is provided with the injection hole 111 and the jet hole 112.
  • each fuel gas-air mixing channel 11 is provided with the injection hole 111 and the jet hole 112.
  • the injector 10 is provided with an increased number of the injection holes 111 as compared with existing injectors, more air can be introduced so that the fuel gas is able to be fully burned, in this way, the fuel gas utilization rate is improved, thereby reducing NO X and CO emissions.
  • each burner has a rated input power of 2 KW and municipal natural gas is used as the fuel gas source
  • a common burner having a single fuel gas-air mixing channel has a turndown ratio of 2:1
  • the burner of an embodiment of the present invention having two fuel gas-air mixing channels has a turndown ratio of 4:1 due to a selectable number of combustive fuel gas-air mixing channels. Therefore, under the same input power conditions, the burner of the present invention having two fuel gas-air mixing channels can halve the minimum temperature rise of the water heated by the water heater, thereby effectively improving the user's bath comfort.
  • a burner is provided in the present embodiment.
  • the injector 10 is provided with a water flow channel 12 which is disposed adjacent to the jet hole 112 for a flow of cooling water.
  • a large amount of heat generated by the combustion in the injector 10 can be absorbed to effectively reduce the temperature of combustion zone of the fire holes 21, thereby further reducing the amount of generated NO X .
  • the cooling water is also referred to water to be heated by the burner, the water absorbs the heat of a surface of the injector 10 prior to passing through the water flow channel 12, thereby effectively improving the energy conversion efficiency and effectively achieving energy saving and emission reduction.
  • a water pipe is inserted in the water flow channel 12 by pipe expansion techniques.
  • the water pipe should be properly installed for the cooling water to pass through, thereby ensuring heat transfer and absorption.
  • the water flow channels 12 are opened on both sides of each of the fuel gas-air mixing channel 11.
  • the fuel gas-air mixing channel 11 is T-shaped in general, which enables a sufficient mixing of the fuel gas and air.
  • the fuel gas-air mixing channel 11 includes a converging section 113, a mixing section 114, and a diverging section 115 which are sequentially communicated along a fuel gas-air flow direction.
  • the converging section 113 has a tapered shape that gradually tapers along the fuel gas-air flow direction, a cross-sectional area of an inlet 1131 of the converging section 113 is 3-6 times a cross-sectional area of an outlet 1132 of the converging section 113.
  • induced fuel gas creates a negative pressure at the outlet 1132 of the converging section 113, which can increase air intake from the inlet 1131 of the converging section 113.
  • a cross-sectional area of the mixing section 114 along the fuel gas-air flow direction gradually increases.
  • a cross-sectional area of an outlet 1142 of the mixing section 114 is 2-5 times a cross-sectional area of an inlet 1141 of the mixing section 114.
  • the diverging section 115 is triangular-shaped in general along the fuel gas-air flow direction, a cross-sectional area of an inlet 1151 of the diverging section 115 is smaller than a cross-sectional area of an outlet 1152 of the diverging section 115.
  • an intermediate section of the diverging section 115 is provided with a constricted opening 115a.
  • the constricted opening 115a provides a uniform distribution of the fuel gas-air velocity in the fuel gas-air mixing channel 11.
  • the cross-sectional area of the inlet 1131 of the converging section 113 is four times the cross-sectional area of the outlet 1132 of the converging section 113.
  • the cross-sectional area of the outlet 1142 of the mixing section 114 is three times the cross-sectional area of the inlet 1141 of the mixing section 114.
  • lengths of the converging section 113, the mixing section 114 and the diverging section 115 along the fuel gas-air flow direction are respectively set to A, B and C, wherein B>C>A, B is 3-6 times of A, and B is 1.5-3.5 times of C.
  • the length B of the mixing section 114 is four times the length A of the converging section 113, and the length B the mixing section 114 is twice the length C of the diverging section 115.
  • the fire holes 21 are uniformly opened on the fire hole plate 20, and the fire hole 21 has a diameter ranging from 0.5 to 1.5 mm.
  • the fuel gas-air mixture jetted from the jet hole 112 can be evenly distributed into the fire holes 21 for stable and complete combustion.
  • a surface of the fire hole plate 20 is provided with a catalyst, the catalyst being a noble metal, a transition metal hydride or a transition metal oxide.
  • the catalyst can effectively reduce the activation energy of the fuel gas-air mixture, and at the same time enrich the molecules of the mixture on the surface of the fire hole plate 20, thereby increasing the reaction speed and accelerating the burning rate.
  • Organic exhaust gas generated from incomplete combustion can be flamelessly burned under a low ignition temperature by using the catalyst, and then can be oxidized and decomposed into CO 2 and H 2 O, which achieves low CO and even zero CO emissions and releases a large amount of heat, thereby achieving the goal of energy saving and emission reduction.
  • FIG. 4 is a schematic view showing the structure of an injector after being disassembled and unfolded, according to an embodiment of the present invention.
  • the injector 10 is formed by folding and connecting a structurally symmetrical first casing 13 towards opposite sides along a center line 18 thereof, wherein the first casing 13 is provided with at least two first pressing grooves 131 on one side besides the center line 18, and is provided with at least two second pressing grooves 132 which are in one-to-one correspondence with the first pressing grooves 131 on the other side besides the center line 18.
  • the first pressing groove 131 and the second pressing groove 132 form the fuel gas-air mixing channel 11.
  • the manufacture of the injector 10 can be simplified.
  • two opposite edges of the first casing 13 that are perpendicular to the center line 18 are provided with folding rims 134 for performing a snap connection between the two structurally symmetrical parts of the first casing 13 after the first casing 13 is folded.
  • the injector 10 can be formed by assembling a second casing and a third casing having a same structure (not shown in the drawings), wherein the second casing is provided with at least two third pressing grooves (not shown in the drawings), the third casing is provided with at least two fourth pressing grooves (not shown in the drawings) which are in one-to-one correspondence with the third pressing grooves.
  • the third pressing groove and the fourth pressing groove facing each other form the fuel gas-air mixing channel 11.
  • the second casing and the third casing are assembled together though folding rims 134 that are arranged on two opposite edges of the second casing or the third casing.
  • the injector 10 is fabricated from a material selected from at least one of aluminum, copper, stainless steel and other alloy.
  • two opposite fifth pressing grooves 133 are respectively depressed from two opposite surfaces of the diverging section 115 of the injector 10 to form the constricted opening 115a in the fuel gas-air mixing channel 11.
  • the fire hole plate 20 is arranged covering the end of the injector 10 that provides the jet holes 112.
  • the end of the injector 10 that provides the jet holes 112 is provided with an outwardly extending flange 14, an engagement groove 22 is disposed at an edge of the fire hole plate 20, and the flange 14 is inserted into the engagement groove 22 to connect the fire hole plate 20 and the injector 10.
  • the injector 10 is snapped into the fire hole plate 20, then fixedly connected by riveting or spot welding or other processes.
  • an edge of the fire hole plate 20 is provided with a bent edge to form the engagement groove 22.
  • an angle between a central axis of the injection hole 111 and an end surface of the jet hole 112 is preferably 90 degrees.
  • the burner of the present invention is applied to a type of water heater with a fan for supplying air, the angle between the central axis of the injection hole 111 and the end surface of the jet hole 112 ranges from 0 to 90 degrees.
  • a front side and a back side of the injector 10 are each provided with a positioning boss 17, which is used for stacking and assembling a plurality of the burners to form a burner assembly.
  • a positioning boss 17 which is used for stacking and assembling a plurality of the burners to form a burner assembly.
  • two adjacent burners are initially positioned by abutting the corresponding two positioning bosses 17, so that the distance between adjacent burners can be kept consistent.
  • the injector 10 is provided with a mounting hole 15 at the positioning boss 17.
  • a connecting member passes through the mounting holes 15 of adjacent two injectors 10, so as to assemble a plurality of the burners to form a burner assembly.
  • an end surface of the injector 10 that provides the injection holes 111 is provided with mounting portions for mounting windshields.
  • Each of the injection holes 111 is provided with windshields at both sides.
  • the mounting portions are threaded holes 16 opened on both sides of the injection hole 111.
  • An embodiment of the second aspect of the present invention provides a gas water heater including the burner according to any of the above. Since the gas water heater provided by the present invention comprises the burner according to the first aspect, the gas water heater has the all the benefits of the burner stated above; the present embodiment will not be stated in detail here.
  • the embodiments of the present invention provide a gas water heater and a burner thereof, where the burner comprises an injector that is provided with at least two non-communicating fuel gas-air mixing channels and at least two corresponding independent jet holes.
  • the burner comprises an injector that is provided with at least two non-communicating fuel gas-air mixing channels and at least two corresponding independent jet holes.
  • more air can be introduced by the fuel gas, so that the fuel gas combustion is more sufficient, thereby reducing the emission of NO X and CO in the combustion process.
  • the number of combustive fuel gas-air mixing channels in the burner is controllable, which can effectively increase a turndown ratio and achieve low heat combustion, thereby ultimately meeting various requirements of the customers for bath temperature.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Claims (6)

  1. Brenner, umfassend einen Einspritzer (10) und eine Feuerlochplatte (20), wobei:
    der Einspritzer (10) intern mit mindestens zwei nicht in Verbindung stehenden, parallelen Brenngas-Luft-Mischkanälen (11) versehen ist, wobei ein Ende des Einspritzers (10) mit mindestens zwei Einspritzlöchern (111) versehen ist, die jeweils in eineindeutiger Entsprechung in Verbindung mit den Brenngas-Luft-Mischkanälen (11) stehen, das andere Ende des Einspritzers (10) mit mindestens zwei Strahllöchern (112) versehen ist, die jeweils in eineindeutiger Entsprechung in Verbindung den Brenngas-Luft-Mischkanälen (11) stehen, die Feuerlochplatte (20) das Ende des Einspritzers (10) abdeckend angeordnet ist, das die Strahllöcher (112) bereitstellt, und eine Vielzahl von Feuerlöchern (21) vorgesehen ist, die auf der Feuerlochplatte (20) über jedem Strahlloch (112) geöffnet ist;
    wobei der Einspritzer (10) mit einem Wasserströmungskanal (12) versehen ist, der neben dem Strahlloch (112) für eine Strömung von Kühlwasser angeordnet ist;
    wobei der Brenngas-Luft-Mischkanal (11) allgemein T-förmig ist und der Brenngas-Luft-Mischkanal (11) einen zusammenlaufenden Abschnitt (113), einen Mischabschnitt (114) und einen auseinanderlaufenden Abschnitt (115) umfasst, die sequenziell entlang einer Brenngas-Luft-Strömungsrichtung verbunden sind, wobei:
    der zusammenlaufende Abschnitt (113) eine verjüngte Form aufweist, die sich allmählich in der Brenngas-Luft-Strömungsrichtung verjüngt, wobei eine Querschnittsfläche eines Einlasses (1131) des zusammenlaufenden Abschnitts (113) ein 3-6-Faches einer Querschnittsfläche eines Auslasses (1132) des zusammenlaufenden Abschnitts (113) beträgt; wobei sich eine Querschnittsfläche des Mischabschnitts (114) entlang der Brenngas-Luft-Strömungsrichtung allmählich vergrößert und eine Querschnittsfläche eines Auslasses (1142) des Mischabschnitts (114) ein 2-5-Faches einer Querschnittsfläche eines Einlasses (1141) des Mischabschnitts beträgt; und der auseinanderlaufende Abschnitt (115) allgemein dreieckig entlang der Brenngas-Luft-Strömungsrichtung geformt ist, eine Querschnittsfläche eines Einlasses (1151) des auseinanderlaufenden Abschnitts (115) kleiner als eine Querschnittsfläche eines Auslasses (1152) des auseinanderlaufenden Abschnitts (115) ist und ein Zwischenabschnitt des auseinanderlaufenden Abschnitts (115) mit einer verengten Öffnung (115a) versehen ist;
    wobei Längen des zusammenlaufenden Abschnitts (113), des Mischabschnitts (114) und des auseinanderlaufenden Abschnitts (115) entlang der Brenngas-Luft-Strömungsrichtung jeweils auf A, B und C festgelegt sind, wobei:
    B > C > A, B ein 3-6-Faches von A ist und B ein 1,5-3,5-Faches von C ist;
    wobei das Ende des Einspritzers (10), das die Strahllöcher (112) bereitstellt, mit einem nach außen verlaufenden Flansch (14) versehen ist, eine Eingriffsnut (22) an einer Kante der Feuerlochplatte (20) angeordnet ist und der Flansch (14) in die Eingriffsnut (22) eingesetzt ist, um die Feuerlochplatte (20) und den Einspritzer (10) zu verbinden;
    wobei zwei gegenüberliegende fünfte Pressnuten (133) jeweils von zwei gegenüberliegenden Oberflächen des auseinanderlaufenden Abschnitts (115) des Einspritzers (10) gedrückt sind, um die verengte Öffnung (115a) im Brenngas-Luft-Mischkanal (11) zu bilden.
  2. Brenner nach Anspruch 1, wobei die Querschnittsfläche des Einlasses (1131) des zusammenlaufenden Abschnitts (113) ein Vierfaches der Querschnittsfläche des Auslasses (1132) des zusammenlaufenden Abschnitts (113) beträgt und die Querschnittsfläche des Auslasses (1142) des Mischabschnitts (114) ein Dreifaches der Querschnittsfläche des Einlasses (1141) des Mischabschnitts (114) beträgt.
  3. Brenner nach Anspruch 1 oder 2, wobei eine Oberfläche der Feuerlochplatte (20) mit einem Katalysator versehen ist.
  4. Brenner nach Anspruch 3, wobei der Einspritzer (10) durch Falten und Verbinden eines strukturell symmetrischen ersten Gehäuses (13) zu gegenüberliegenden Seiten entlang einer Mittellinie (18) davon gebildet ist, wobei das erste Gehäuse (13) mit mindestens zwei ersten Pressnuten (131) an einer Seite neben der Mittellinie (18) versehen ist und mit mindestens zwei zweiten Pressnuten (132) versehen ist, die in eineindeutiger Entsprechung zu den ersten Pressnuten (131) auf der anderen Seite neben der Mittellinie (18) stehen; und nachdem das erste Gehäuse (13) zu gegenüberliegenden Seiten gefaltet ist, die erste Pressnut (131) und die zweite Pressnut (132), die einander gegenüberliegen, den Brenngas-Luft-Mischkanal (11) bilden.
  5. Brenner nach Anspruch 3, wobei der Einspritzer (10) durch Zusammensetzen eines zweiten Gehäuses und eines dritten Gehäuses mit einer gleichen Struktur gebildet ist, wobei das zweite Gehäuse mit mindestens zwei dritten Pressnuten versehen ist, das dritte Gehäuse mit mindestens zwei vierten Pressnuten versehen ist, die in eineindeutiger Entsprechung zu den dritten Pressnuten stehen, und die dritte Pressnut und die vierte Pressnut, die einander gegenüberliegen, den Brenngas-Luft-Mischkanal (11) bilden.
  6. Gas-Wassererwärmer, der den Brenner nach einem der Ansprüche 1-5 umfasst.
EP18020562.7A 2018-07-20 2018-10-29 Gas-wassererhitzer und brenner dafür Active EP3597999B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201821154328.9U CN208871621U (zh) 2018-07-20 2018-07-20 一种燃气热水器及其燃烧器
CN201810800675.2A CN108916872A (zh) 2018-07-20 2018-07-20 一种燃气热水器及其燃烧器

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Publication Number Publication Date
EP3597999A1 EP3597999A1 (de) 2020-01-22
EP3597999B1 true EP3597999B1 (de) 2021-03-17

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EP (1) EP3597999B1 (de)
CL (1) CL2018003168A1 (de)
ES (1) ES2863909T3 (de)
PT (1) PT3597999T (de)

Citations (1)

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EP3584499A1 (de) * 2018-01-16 2019-12-25 Wuhu Midea Kitchen And Bath Appliances Mfg. Co, Ltd. Flammenverteiler sowie brenner und wassererhitzer mit verwendung davon

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FR2740202B1 (fr) * 1995-10-19 1997-12-12 Leblanc Sa E L M Perfectionnements apportes a un bruleur de chauffe-eau, chauffe-bain, chaudiere a gaz
CH692677A5 (de) * 1996-06-10 2002-09-13 Vaillant Gmbh Gasbrenner.
AT404296B (de) * 1996-06-10 1998-10-27 Vaillant Gmbh Brenner
DE10010762C2 (de) * 2000-03-04 2002-03-28 Bosch Gmbh Robert Atmosphärischer Gasbrenner
WO2014116970A2 (en) * 2013-01-25 2014-07-31 Beckett Gas, Inc. Ultra-low nox burner
CN207065570U (zh) * 2017-08-16 2018-03-02 芜湖美的厨卫电器制造有限公司 燃烧器及燃气热水器

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3584499A1 (de) * 2018-01-16 2019-12-25 Wuhu Midea Kitchen And Bath Appliances Mfg. Co, Ltd. Flammenverteiler sowie brenner und wassererhitzer mit verwendung davon

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EP3597999A1 (de) 2020-01-22
PT3597999T (pt) 2021-04-15
ES2863909T3 (es) 2021-10-13
CL2018003168A1 (es) 2019-02-08

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