CN102635863A - Burner and fuel gas hot water equipment adopting same - Google Patents
Burner and fuel gas hot water equipment adopting same Download PDFInfo
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- CN102635863A CN102635863A CN2012101218334A CN201210121833A CN102635863A CN 102635863 A CN102635863 A CN 102635863A CN 2012101218334 A CN2012101218334 A CN 2012101218334A CN 201210121833 A CN201210121833 A CN 201210121833A CN 102635863 A CN102635863 A CN 102635863A
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Abstract
The invention provides a burner which comprises at least two burner units, a second fuel-air mixing cavity as well as at least one fuel-air mixture distributing port, wherein each burner unit comprises a plurality of fire holes which are arranged in a lengthwise manner and a first fuel-air mixing cavity, and each first fuel-air mixing cavity is used for generating and transferring a first fuel-air mixture to the fire holes; at least two burner units are arranged side by side along a transverse direction and a gap is formed between the upper parts of the burner units, and the second fuel-air mixing cavity is used for generating a second fuel-air mixture; and at least one fuel-air mixture distributing port is arranged independently relative to at least two burner units and is communicated with gas in the second fuel-air mixing cavity so as to distribute the second fuel-air mixture to a gap between at least two burner units. Through the arrangement, the discharge of nitrogen oxide is effectively reduced and simultaneously the good burning effect is ensured, and the reconstruction of the fire discharge piece of the existing burner is reduced as much as possible.
Description
Technical field
The invention belongs to the combustion apparatus field, the gas and hot water equipment that is specifically related to a kind of burner and adopts this burner.
Background technology
Gas and hot water equipment is like the burner, the heat exchanger that are provided with usually in gas heater or the gas fired-boiler and hold burner and the combustion chamber of heat exchanger.Burner often includes the some fiery screening that is arranged side by side; Each fiery screening has combustion gas-Air mixing passage; Can be within it combustion gas and air be mixed and pass to the fire hole that is positioned at fiery screening top with the internal combustion and generate heat in the combustion chamber; But the water in the heat reheat heat exchanger after the generation, thereby heated water can be used for drinking, bathing or heating etc.
Burner can produce waste gas in combustion process, and can be discharged in the atmosphere.Waste gas includes human body and the influential composition of atmosphere usually, like carbon monoxide (CO) or nitrogen oxide (NOx) etc.Along with living standard and to the raising of environmental protection consciousness, People more and more is paid attention to discharge of harmful gases in the household gas apparatus.Wherein the discharging of carbon monoxide is paid close attention to by people already, and the manufacturer of a large amount of combustion gas tools also takes appropriate measures and reduce the discharging of carbon monoxide, yet, yet but do not cause enough attention as yet for the discharging of nitrogen oxide.
Analysis shows that the toxicity of nitrogen oxide is greater than carbon monoxide after deliberation, and long-term discharging meeting causes the pollution of two aspects to atmosphere: acid rain and photochemical fog (Photochemical Smog).In the discharged nitrous oxides mark of the domestic gas tool that China has formulated, the superlative degree is that the GB Pyatyi requires to be limited to 70 milligrams/kilowatt-hour (mg/kWh) on the nitrous oxides concentration.At present by extensive employing be used for reduce the domestic gas tool discharged nitrous oxides mainly be dense-dilute burner combustion technology.
The basic principle of bias combustion is that a part of combustion gas is burnt under the condition of lack of air, and promptly fuel is crossed " dense " burning, and another part combustion gas is burnt under the too much condition of air, and promptly fuel is crossed " light " burning.The combustion gas under two kinds of situation and the stoichiometric proportion (Stoichiometric Ratio) of air be the theory measurement ratio of bias combustion reaction all, and oxygen concentration is lower in the dense flame, and the primary combustion temperature is low when stoichiometric proportion, can reduce the generation of nitrogen oxide; And oxygen concentration is high in the light flame, but the combustion gas deficiency also can make the primary combustion temperature reduce, thereby reduces the discharging of nitrogen oxide, and the final total nitrogen oxide of burning that makes reduces.Simultaneously, have second-time burning in the bias combustion process, the second-time burning of deep or light flame is after primary combustion is accomplished respectively, carries out between the primary combustion product.Owing to contain gases such as a large amount of carbon dioxide and water in the primary combustion product, cause the concentration of temperature and oxygen in secondary response district all lower, thereby the generation of nitrogen oxide is suppressed.Therefore, the primary combustion of bias combustion and second-time burning can effectively suppress the generation of nitrogen oxide.
The burner structure of available technology adopting bias combustion such as U.S. Pat 5,368,476 are with shown in the open CN 101592338A of Chinese patent.Yet; The burner of these new constructions all need carry out bigger transformation to the fiery screening in the burners in prior; And be to guarantee good combustion efficiency, the structure of original fiery screening, size or arrange all be through accurate calculate, a series of experiment and permanent manufacturing use experience obtain, so; Though the fiery screening that process is transformed can reduce the discharging of nitrogen oxide to a certain extent, possibly can't guarantee original combustion efficiency.
Summary of the invention
The object of the present invention is to provide a kind of burner, it can guarantee good combustion efficiency again simultaneously in the discharging that effectively reduces nitrogen oxide, and reduces the transformation to existing burner fire screening as much as possible.
The object of the present invention is to provide a kind of gas and hot water equipment that adopts said burner.
For realizing one of foregoing invention purpose; The present invention provides a kind of burner; It comprises: at least two burner unit; Each burner unit comprises some fire holes and the first fuel-air hybrid chamber that lengthwise is arranged, and said first fuel-air hybrid chamber is used for generating and transmitting first fuel-air mixture to said fire hole, said at least two burner unit along laterally be arranged side by side and at an upper portion thereof between form the gap; Second fuel-air hybrid chamber is used to generate second fuel-air mixture; And at least one fuel-air mixture distribution openings; It independently is provided with respect to said two burner unit at least, and is communicated with so that second fuel-air mixture is dispensed in the said gap of said two burner unit at least with said second fuel-air hybrid chamber gas.
As further improvement of the present invention, this burner further comprises individual tubes, and it has the sidewall that lengthwise extends; Said at least one fuel-air mixture distribution openings be arranged on said sidewall on the part in said gap.
As further improvement of the present invention, said individual tubes further comprises vertical openings at two ends and the blind end that lays respectively at its sidewall; Said second fuel-air hybrid chamber is formed in the zone that said sidewall encloses and between said opening and blind end.
As further improvement of the present invention, said first fuel-air hybrid chamber has first Venturi tube (venturi) part; Said individual tubes in the vertical direction is lower than said first Venturi tube and partly is provided with.
As further improvement of the present invention, said second fuel-air hybrid chamber has the second Venturi tube part between said at least two burner unit in the horizontal.
As further improvement of the present invention, said first fuel-air hybrid chamber has air inlet; This burner further comprises fuel supply device, and it comprises towards first nozzle of said air inlet with towards second nozzle of said opening; The outlet size of wherein said first nozzle is greater than the outlet size of said second nozzle, so that the more fuel of volume to be provided.
As further improvement of the present invention, said air inlet more manys air capacity to be used for introducing greatly than the size of the opening of said individual tubes.
As further improvement of the present invention; This burner further comprises cover plate; Said cover plate covers on the top of said at least two burner unit and said some fire holes is come out; And the gap location of said cover plate between said at least two burner unit is provided with at least one fiery groove, and the width of said at least one fiery groove is less than the width in said gap.
As further improvement of the present invention, this burner also comprises the framework that is used for holding said at least two burner unit and said individual tubes; Said at least two burner unit comprise that latching device all is fixed to said two burner unit and said individual tubes on the framework being used at least.
As further improvement of the present invention, said framework comprises front panel; Said latching device comprises and extends through said front panel, and cooperates with it so that said at least two burner unit are fixed to first button hook on the said framework, and extends through said front panel and cooperate said individual tubes is fixed to second button hook on the said framework with said individual tubes.
As further improvement of the present invention, said first fuel-air mixture is dense fuel-air mixture, and said second fuel-air mixture is light fuel-air mixture; Said first and/or second fuel-air mixture comprises the gas-air mixture body.
For realizing one of foregoing invention purpose, the present invention can also provide a kind of burner, and it comprises first combustion parts, and it comprises along the some tabular burner unit that laterally is arranged side by side; Each burner unit is provided with row's fire hole at its top along longitudinally, to be used for providing a kind of of dense combustion flame and light combustion flame; Second combustion parts; It comprises some individual tubes and some fiery grooves; Wherein each individual tubes is arranged between any adjacent two of said some burner unit, said some fiery grooves be arranged between the fire hole row and related setting with individual tubes to be used for providing the another kind of dense combustion flame and light combustion flame.
As further improvement of the present invention, this burner further comprises the cover plate that covers on said some burner unit and expose said fire hole; Said some fluting settings on the cover board, perforate and be communicated with on the said individual tubes with corresponding fiery groove gas.
For realizing above-mentioned another goal of the invention, the present invention provides a kind of gas and hot water equipment, and it comprises: like each described burner in the above-mentioned claim; Heat exchanger; And the combustion chamber, accommodate said burner and heat exchanger, and allow that the heat that said burner combustion produces passes to said heat exchanger.
As further improvement of the present invention, this equipment also comprises air exhauster, and it is communicated with said combustion chamber gas from the combustion chamber, to extract flue gas out and in the combustion chamber, to import fresh air simultaneously.
Compared with prior art, the invention has the beneficial effects as follows:, make the size of first fuel-air hybrid chamber of burners in prior unit not need change with structure because the distribution openings of second fuel-air mixture is independent of the burner unit setting.In addition; Individual tubes is in the horizontal between adjacent two burner unit; But first Venturi tube that on vertically, is lower than burner unit partly is provided with, thereby the interval between some burner unit does not need adjustment yet, that is to say; Main structure, the size of burners in prior unit and arranging all do not need adjustment, can be implemented in to guarantee good combustion efficiency when lowering discharged nitrous oxides.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing relevant of the present invention in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the floor map of gas and hot water equipment one specific embodiment of the present invention, and wherein front panel is removed to show its internal structure;
Fig. 2 is the schematic perspective view of burner in the gas fired-boiler shown in Figure 1;
Fig. 3 is a burner vertical view shown in Figure 2;
Fig. 4 is a burner three-dimensional exploded view shown in Figure 2;
Fig. 5 is a burner front view shown in Figure 2;
Fig. 6 is the cross-sectional schematic along A-A line direction among Fig. 3;
Fig. 7 is the cross-sectional schematic along B-B line direction among Fig. 3;
Fig. 8 is according to the primary air ratio of experiment acquisition and the graph of a relation of discharged nitrous oxides.
The specific embodiment
Below will combine each embodiment shown in the drawings to describe the present invention.But these embodiments do not limit the present invention, and the conversion on the structure that those of ordinary skill in the art makes according to these embodiments, method or the function all is included in protection scope of the present invention.
Shown in Figure 1 is a specific embodiment of gas and hot water equipment of the present invention, and this gas and hot water equipment is gas fired-boiler in this embodiment.Gas and hot water equipment is to be fuel with the fuel gas, like natural gas, town gas, liquefied gas, biogas etc., comes heat hot water to satisfy the demand of user's domestic water and/or heating through burning combustible gas.Certainly, the burner of the present invention that below will introduce in detail is not limited in and is applied in the gas fired-boiler, and it can be applied in equally and be merely the user and provide in the gas heater of domestic water; Even it can also be applied to other forms of fuel, in solid fuel, fluid combustion equipment.
As shown in Figure 1; This gas fired-boiler 100 comprises the shell 4 that assembled by some panels, is housed in burner 1, heat exchanger 2, combustion chamber 3, air exhauster 5 and gas circuit and water circuit system in the shell 4, and wherein burner 1 is arranged in the combustion chamber 3 with heat exchanger 2.In this embodiment, heat exchanger 2 can adopt fin tube type heat exchanger, and promptly fin is set on the water pipe of heat exchanger.Burner 1 from air-channel system receive combustion gas and in the combustion chamber 3 internal combustion, the heat that burning produces is absorbed by fin through convection type, then further conducts feed pipe with the water among the heating pipe; Water after the heating can get into outside radiator circulation so that heating installation to be provided through water circuit system; On the other hand; Water after the heating also can pass through another heat exchanger (not shown), like the water pipe of plate type heat exchanger with the heat transferred domestic water, thereby drinks for the user provides, domestic water such as bathing.
To shown in Figure 5, in this embodiment, burner 1 comprises box body, is housed in some burner unit 12 and some individual tubes 13 and fuel supply device 15 in the box body with reference to Fig. 2.Wherein box body comprises front panel 141, and the rear board 142 relative with front panel 141 is positioned at the pair of side plates 143 of front and back panels both sides, the base plate 144 that links to each other with the side plate bottom with front and back panels, and the cover plate 11 that covers front and back panels and side plate top.Wherein, front and back panels 141,142 and side plate 143 and base plate 144 can form through traditional connected mode assembling, if the mode that screw cooperates with nut etc.
Cooperation is with reference to Fig. 6 and shown in Figure 7, and burner unit 12 and individual tubes 13 can be used to provide the fuel-air mixture of different fuel-air stoichiometry ratio respectively.Wherein, it is tabular that burner unit 12 roughly is, and can adopt existing fiery screening.Burner unit 12 comprises the some fire holes 121 that extend along lengthwise that are located at its top and is formed on the mist pipeline 122 on the body.In this pipeline, be formed with the first fuel-air hybrid chamber that is communicated with fire hole 121 gases, be used for the combustion gas and the primary air of fuel supply device 15 supplies are generated first fuel-air mixture and pass to fire hole 121 by the mixed of setting.
First Venturi tube (venturi) part 123 (cooperating shown in Figure 6) that first fuel-air hybrid chamber has air inlet 1231 (as shown in Figure 5) and is positioned at next-door neighbour's air inlet setting at the hybrid chamber upper reaches.Venturi tube is that it can be made up of inlet contraction section, cylindrical shape throat and the conical diffuser of axial cross section usually through the gas at Venturi effect absorption air inlet 1231 places.Because it is well known to those of ordinary skill in the art that the principle of Venturi tube and formation are, so the applicant no longer gives unnecessary details at this.
Perforate is to be provided with at least one fuel-air mixture distribution openings 131 on the sidewall of individual tubes 13, and it is communicated with so that second fuel-air mixture is dispensed with above-mentioned second fuel-air hybrid chamber gas.In this embodiment, distribution openings 131 has several, and being arranged in a row along longitudinally is arranged on the sidewall of individual tubes 13.Similar with first fuel-air hybrid chamber; Second fuel-air hybrid chamber is being provided with the second Venturi tube part 132 (cooperating shown in Figure 7) near opening 1321 places; Its operation principle is similar with the structure and the first Venturi tube part 123, and the applicant no longer gives unnecessary details at this.
In this embodiment, some burner unit 12 edges laterally are arranged side by side, and form the gap at an upper portion thereof; Some individual tubes 13 are along horizontal corresponding respectively being arranged between two adjacent burner unit 12, thereby the distribution openings 131 of individual tubes 13 can be dispensed to second fuel-air mixture in the corresponding gap.Like Fig. 6 and shown in Figure 7; In the vertical direction; The first Venturi tube part 123 that the second Venturi tube part 132 of individual tubes 13 all is lower than burner unit is provided with, and alleged here " being lower than " is meant that the axis of the second Venturi tube part 132 is lower than the axis of the first Venturi tube part 123.Preferably, individual tubes 13 integral body all are lower than 123 settings of the first Venturi tube part.
Before address; Second fuel of first fuel of burner unit 12-air hybrid chamber and individual tubes 13-air hybrid chamber is used to provide the fuel-air mixture of different fuel-air stoichiometry ratio respectively, like dense fuel-air mixture and light combustion gas-air mixture.Alleged here dense fuel-air mixture is meant, compares fuel and measures ratio with the theoretical chemistry of air completing combustion reaction, crosses the fuel of " dense " and the mixture of primary air; In this case; Primary air ratio is less, burns to be dense burning, and the flame of generation is dense combustion flame; Otherwise light fuel-air mixture is meant, compares fuel and compares with the theoretical chemistry metering of air completing combustion reaction; Cross the fuel of " light " and the mixture of primary air, in this case, primary air ratio is bigger; Burning is light burning, and the flame of generation is light combustion flame.
In this embodiment, fuel is combustion gas, and what in first fuel-air hybrid chamber, form is dense gas-air mixture body, and what in second fuel-air hybrid chamber, form is light gas-air mixture body.Certainly, in other embodiments, can be light fuel-air gas mixture also what in first fuel-air hybrid chamber, form, correspondingly, the flame of generation is light combustion flame; And what in second fuel-air hybrid chamber, form is dense fuel-air gas mixture, and correspondingly, the flame of generation is dense combustion flame.
In the above-mentioned embodiment; Because burner unit 12 is crisscross arranged with individual tubes 13; And dense, light fuel-air mixture is provided respectively; Thereby can form dense, the light combustion flame that is interspersed at the top of burner, and then when lowering discharged nitrous oxides, guarantee good combustion efficiency.In addition, because the distribution openings of second fuel-air mixture is independent of the burner unit setting, make the size of first fuel-air hybrid chamber of burners in prior unit not need change with structure; In addition; Individual tubes is in the horizontal between adjacent two burner unit; But first Venturi tube that on vertically, is lower than burner unit partly is provided with, thereby the interval between some burner unit does not need adjustment yet, that is to say; Main structure, the size of burners in prior unit and arranging all do not need adjustment, can be implemented in to guarantee good combustion efficiency when lowering discharged nitrous oxides.In other embodiments, the quantity of burner unit 12 can optionally and correspondingly increase and decrease; Perhaps individual tubes also can be higher than first Venturi tube and partly is provided with, and only possibly need the interval between the adjacent burner unit of adjustment this moment.
Also be provided with latching device on the burner unit 12, can burner unit 12 and individual tubes 13 all be fixed on the front panel 141.This latching device comprises that the upper front end of spontaneous combustion device unit 12 bodies extends, runs through first button hook 1241 that front panel 141 and bending cooperate with front panel, and also second button hook 1242 that cooperates with individual tubes 13 of bending of front panel 141 is extended, run through in the front end bottom of spontaneous combustion device unit 12 bodies.
In fact, in this embodiment, can some burner unit 12 that dense combustion flame is provided be regarded as first combustion parts, and will provide the individual tubes 13 of light combustion flame to be regarded as second combustion parts with corresponding fiery groove 112.Certainly; As before said; In other embodiments, burner unit 12 also can be used for generating light fuel-air mixture and produces light combustion flame, and individual tubes 13 can be used for generating dense fuel-air mixture and produce dense combustion flame; Therefore, first and second combustion parts also can exchange.In addition, " independence " of individual tubes is relatively independent for burner unit 12, so in other embodiments, only need guarantee the relative position of individual tubes and burner unit, and individual tubes also can integrate on base plate 144.
Like Fig. 4, Fig. 6 and shown in Figure 7, in this embodiment, fuel supply device 15 is installed on the front panel 141, and it comprises fuel gas inlet 151, towards first nozzle 152 of air inlet 1231 with towards second nozzle 153 of opening 1321.Combustion gas is arranged to first fuel-air hybrid chamber through first nozzle 152 after getting into from fuel gas inlet 151, and arranges to second fuel-air hybrid chamber through second nozzle 153.The amount of combustion gas output depends on the outlet size of nozzle; In this embodiment; Because first fuel-air hybrid chamber is used to mix dense fuel and air; And second fuel-air hybrid chamber is used to mix light fuel and air, so the outlet size of first nozzle 152 is greater than the outlet size of second nozzle 153, so that the more fuel of volume to be provided.
After the fuel of first nozzle 152 ejection gets into first fuel-air hybrid chambers through air inlet 1231 together together with primary air, mix, and after the fuel of second nozzle, 153 ejections gets into second fuel-air hybrid chambers through opening 1321 together together with primary air, mix.Wherein, the introducing amount of air depends on the size of air inlet 1231 and opening 1321, and in this embodiment, air inlet 1231 more manys air capacity to be used for introducing greatly than the size of the opening 1321 of individual tubes.In other embodiments, when the outlet size of first nozzle 152 was enough big, as long as satisfy the requirement of dense, the light ratio of design, the size of air inlet 1231 can be equal to or less than the size of opening 1321.
How to obtain outlet size d1, the d2 of first, second nozzle 152,153 below in conjunction with Fig. 8 introduction, and size d3, the d4 of air inlet 1231 and opening 1321.Fig. 8 is that wherein transverse axis is represented primary air ratio according to the primary air ratio of experiment acquisition and the graph of a relation of discharged nitrous oxides, i.e. the ratio of the primary air amount that the primary air amount of Actual combustion and theoretical burning is required; And the longitudinal axis is represented the content of nitrogen oxide in the flue gas, and unit is 1,000,000/(ppm).
Supposing need be with the emission control of nitrogen oxide below 70ppm, and the primary air ratio that then can choose dense burning is α 1, and the primary air ratio of light burning is α 2.Next, select the outlet diameter d1 of existing first nozzle for use, promptly d1 is known, obtains the outlet diameter d2 of second nozzle then in view of the above.For example, can calculate formula (as follows, wherein Hl, p, s, μ are known) according to heat flow and calculate the heat flow Q1 that the combustion gas through first nozzle can produce.Because the specified heat flow Q of burner is predetermined, so, can calculate the heat flow Q2=Q-Q1 that the combustion gas through second nozzle can produce; Then, calculate the outlet diameter d2 that formula calculates second nozzle according to heat flow again.
In the formula: Q-combustion gas tool heat flow;
The L-gas flow;
Hl-combustion gas low heat value;
D-gas nozzle aperture;
The p-gaseous-pressure;
S-combustion gas relative density;
μ-nozzle bore discharge coefficient.
Calculate formula through heat flow and can calculate gas flow L1 and L2 equally through first nozzle and second nozzle; And, can obtain to get into primary air flow L3, the L4 of the first Venturi tube part 123 and the second Venturi tube part 132 according to dense, the primary air ratio α 1 of light burning that chooses in advance, α 2.In addition; Owing to can extrapolate the flow velocity that primary air gets into the first Venturi tube part 123 and the second Venturi tube part 132 according to the rotating speed of air exhauster, thereby combine primary air flow L3, L4 just can calculate size d3, the d4 of air inlet 1231 and opening 1321.
What those of ordinary skills can expect is that the combustion chamber of the gas fired-boiler of being given an example in the above-mentioned embodiment is a closed structure, comes exhausting to promote flowing of combustion gas and air so need to rely on air exhauster.Yet in other embodiments, if the combustion chamber is a non-tight mechanism, burner also can be realized burning through the free convection of air, that is to say, burner of the present invention can be applicable to not have in the gas and hot water equipment of blower fan driving equally.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned example embodiment, and under the situation that does not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore; No matter from which point; All should regard embodiment as exemplary; And be nonrestrictive, scope of the present invention is limited accompanying claims rather than above-mentioned explanation, therefore is intended to the implication of the equivalents that drops on claim and all changes in the scope are drawn together in the present invention.Should any Reference numeral in the claim be regarded as limit related claim.
In addition; Describing according to embodiment though should be appreciated that this specification, is not that each embodiment only comprises an independently technical scheme; This narrating mode of specification only is for clarity sake; Those skilled in the art should make specification as a whole, and the technical scheme among each embodiment also can form other embodiments that it will be appreciated by those skilled in the art that through appropriate combination.
Claims (15)
1. a burner is characterized in that, this burner comprises:
At least two burner unit; Each burner unit comprises some fire holes and the first fuel-air hybrid chamber that lengthwise is arranged; Said first fuel-air hybrid chamber is used for generating and transmits first fuel-air mixture to said fire hole, said at least two burner unit along laterally be arranged side by side and at an upper portion thereof between form the gap;
Second fuel-air hybrid chamber is used to generate second fuel-air mixture; And
At least one fuel-air mixture distribution openings; It independently is provided with respect to said two burner unit at least, and is communicated with so that second fuel-air mixture is dispensed in the said gap of said two burner unit at least with said second fuel-air hybrid chamber gas.
2. burner according to claim 1 is characterized in that: this burner further comprises individual tubes, and it has the sidewall that lengthwise extends; Said at least one fuel-air mixture distribution openings be arranged on said sidewall on the part in said gap.
3. burner according to claim 2 is characterized in that: said individual tubes further comprises vertical openings at two ends and the blind end that lays respectively at its sidewall; Said second fuel-air hybrid chamber is formed in the zone that said sidewall encloses and between said opening and blind end.
4. burner according to claim 2 is characterized in that: said first fuel-air hybrid chamber has first Venturi tube (venturi) part; Said individual tubes in the vertical direction is lower than said first Venturi tube and partly is provided with.
5. burner according to claim 4 is characterized in that: said second fuel-air hybrid chamber has the second Venturi tube part between said at least two burner unit in the horizontal.
6. burner according to claim 3 is characterized in that: said first fuel-air hybrid chamber has air inlet; This burner further comprises fuel supply device, and it comprises towards first nozzle of said air inlet with towards second nozzle of said opening; The outlet size of wherein said first nozzle is greater than the outlet size of said second nozzle, so that the more fuel of volume to be provided.
7. burner according to claim 6 is characterized in that: said air inlet more manys air capacity to be used for introducing greatly than the size of the opening of said individual tubes.
8. burner according to claim 1; It is characterized in that: this burner further comprises cover plate; Said cover plate covers on the top of said at least two burner unit and said some fire holes is come out; And the gap location of said cover plate between said at least two burner unit is provided with at least one fiery groove, and the width of said at least one fiery groove is less than the width in said gap.
9. burner according to claim 2 is characterized in that: this burner also comprises the framework that is used for holding said at least two burner unit and said individual tubes; Said at least two burner unit comprise that latching device all is fixed to said two burner unit and said individual tubes on the framework being used at least.
10. burner according to claim 9 is characterized in that: said framework comprises front panel; Said latching device comprises and extends through said front panel, and cooperates with it so that said at least two burner unit are fixed to first button hook on the said framework, and extends through said front panel and cooperate said individual tubes is fixed to second button hook on the said framework with said individual tubes.
11. burner according to claim 1 is characterized in that: said first fuel-air mixture is dense fuel-air mixture, and said second fuel air mixture is light fuel-air mixture; Said first and/or second fuel-air mixture comprises the gas-air mixture body.
12. a burner is characterized in that, this burner comprises:
First combustion parts, it comprises along the some tabular burner unit that laterally is arranged side by side; Each burner unit is provided with row's fire hole at its top along longitudinally, to be used for providing a kind of of dense combustion flame and light combustion flame;
Second combustion parts; It comprises some individual tubes and some fiery grooves; Wherein each individual tubes is arranged between any adjacent two of said some burner unit, said some fiery grooves be arranged between the fire hole row and related setting with individual tubes to be used for providing the another kind of dense combustion flame and light combustion flame.
13. burner according to claim 12 is characterized in that: this burner further comprises the cover plate that covers on said some burner unit and expose said fire hole; Said some fluting settings on the cover board, perforate and be communicated with on the said individual tubes with corresponding fiery groove gas.
14. a gas and hot water equipment is characterized in that, this equipment comprises:
Like each described burner in the above-mentioned claim;
Heat exchanger; And
Said burner and heat exchanger are accommodated in the combustion chamber, and allow that the heat that said burner combustion produces passes to said heat exchanger.
15. gas and hot water equipment according to claim 14 is characterized in that: this equipment also comprises air exhauster, it is communicated with said combustion chamber gas from the combustion chamber, to extract flue gas out and in the combustion chamber, to import fresh air simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210121833.4A CN102635863B (en) | 2012-04-08 | 2012-04-08 | Burner and fuel gas hot water equipment adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121833.4A CN102635863B (en) | 2012-04-08 | 2012-04-08 | Burner and fuel gas hot water equipment adopting same |
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| Publication Number | Publication Date |
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| CN102635863A true CN102635863A (en) | 2012-08-15 |
| CN102635863B CN102635863B (en) | 2015-01-14 |
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| EP2871414A1 (en) * | 2013-11-08 | 2015-05-13 | Vaillant GmbH | Low-NOx burner with metal fibers |
| CN105091341A (en) * | 2014-05-16 | 2015-11-25 | 林内株式会社 | Heat source machine |
| CN105716080A (en) * | 2016-04-25 | 2016-06-29 | 广东祥基电器有限公司 | Combustion assembly of gas water heater |
| CN109631035A (en) * | 2018-12-12 | 2019-04-16 | 天津神菱燃气设备有限公司 | A kind of half premixing boiler turbocharging burner of half direct combustion |
| CN109764529A (en) * | 2018-11-30 | 2019-05-17 | 威能(无锡)供热设备有限公司 | Gas and hot water equipment |
| WO2019154045A1 (en) * | 2018-02-10 | 2019-08-15 | 芜湖美的厨卫电器制造有限公司 | Combustion chamber structure and gas water heater |
| CN110145860A (en) * | 2018-02-10 | 2019-08-20 | 芜湖美的厨卫电器制造有限公司 | Chamber structure and gas heater |
| CN110594738A (en) * | 2019-10-23 | 2019-12-20 | 上海金巨源热能技术有限公司 | Burner with two linear fire holes |
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| CN111550790A (en) * | 2020-06-05 | 2020-08-18 | 珠海格力电器股份有限公司 | Combustor and gas heater |
| WO2020221367A1 (en) * | 2019-04-30 | 2020-11-05 | 芜湖美的厨卫电器制造有限公司 | Burner and gas water heater |
| CN112682944A (en) * | 2020-12-14 | 2021-04-20 | 威能(无锡)供热设备有限公司 | Burner assembly and gas water heating equipment comprising same |
| KR20210060777A (en) * | 2019-11-19 | 2021-05-27 | 주식회사 경동나비엔 | Burner assembly |
| CN113790527A (en) * | 2021-09-27 | 2021-12-14 | 山东建筑大学 | Low-nitrogen gas module boiler heating device and method |
| CN113865110A (en) * | 2021-09-26 | 2021-12-31 | 广东万和新电气股份有限公司 | Gas water heater and control method and device thereof |
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| CN109631035A (en) * | 2018-12-12 | 2019-04-16 | 天津神菱燃气设备有限公司 | A kind of half premixing boiler turbocharging burner of half direct combustion |
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