CN210688212U - Low-nitrogen burner fire discharge piece, low-nitrogen burner and gas water heating equipment - Google Patents
Low-nitrogen burner fire discharge piece, low-nitrogen burner and gas water heating equipment Download PDFInfo
- Publication number
- CN210688212U CN210688212U CN201920812381.1U CN201920812381U CN210688212U CN 210688212 U CN210688212 U CN 210688212U CN 201920812381 U CN201920812381 U CN 201920812381U CN 210688212 U CN210688212 U CN 210688212U
- Authority
- CN
- China
- Prior art keywords
- low
- plate
- nitrogen burner
- flow channels
- inner shell
- 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
Links
Images
Abstract
The utility model discloses a low-nitrogen burner fire row piece, which comprises an inner shell, an outer shell and a flame vent single piece which are assembled together, wherein a first flow channel is formed between the inner shell and the outer shell, and the flame vent single piece is arranged in the inner shell of the burner; the flame vent single piece is characterized by comprising two integrally-formed side plates, a top plate and a plurality of second flow channels, wherein the second flow channels are positioned on the top plate, the two side plates are fixed with the two sides of the inner shell, and the top plate is flush with the top of the inner shell. The flame vent monolithic structure that adopts integrated into one piece can guarantee batch production's stability, and according to the technological level of present punching press, the outlet dimension of assurance second runner that can be fine for the combustion product NOx volume of combustor is stable, does benefit to quality control and the batch production of being convenient for. The utility model also provides a low-nitrogen combustor and gas hot water equipment that have above-mentioned low-nitrogen combustor fire row piece.
Description
Technical Field
The utility model relates to a gas hot water system technical field especially relates to a low-nitrogen burner and gas hot water system.
Background
As shown in fig. 1 and 2, in the prior art, a first flow channel 03 is formed by spacing an inner casing 01 and an outer casing 02 of a low-nitrogen burner fire row, and a second flow channel 05 is formed in the inner casing 01 by spacing a plurality of flame ports single sheets 04. The premixed gas with a large gas proportion (premixed with air) flows out from the second flow passage and then is combusted to form thick flame, the premixed gas with a small gas proportion flows out from the first flow passage and then is combusted to form thin flame, and the NOx content after combustion is reduced by utilizing the thick-thin combustion.
However, since the flame vent single piece 04 is fixed with the inner case 01 through the fixing port of the inner case. If the size of the fixed port deviates, the flame port single sheet 04 is not centered, and the performance of the burner is affected. In addition, the flame vent single sheet 04 of the existing low-nitrogen burner fire row is formed by bending the base material after stamping, and needs to be bent at multiple positions. After bending, multi-point spot welding is needed for fixing, and a second flow channel 05 is formed. Therefore, the flame vent single piece 0 of the existing low-nitrogen burner fire row has complex process and often cannot well control the distance between the single pieces. If dimensional deviation occurs, the concentration of nitrogen oxides generated after combustion is high, or combustion resonance occurs.
Disclosure of Invention
To the problem that exists among the prior art, the utility model aims to provide a low nitrogen combustor fire row piece of being convenient for batch production is arranged to second runner export size easy control.
The utility model also provides a low-nitrogen combustor with the fire exhaust fin of the low-nitrogen combustor.
The utility model also provides a gas hot water system.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a low-nitrogen burner fire exhaust fin comprises an inner shell, an outer shell and a flame vent single piece which are assembled together, wherein a first flow channel is formed between the inner shell and the outer shell, and the flame vent single piece is arranged in the inner shell; the flame vent single piece comprises a side plate, a top plate and a plurality of second flow channels, wherein the side plate, the top plate and the second flow channels are integrally formed, the side plate is fixed to two sides of the inner shell, and the top plate is flush with the top of the inner shell.
As a further explanation of the scheme, the total area of the outlets of the first flow channel is 120-370 mm2The total outlet area of the second flow channel is 110-330 mm2And the ratio of the total outlet area of the second flow passage to the total outlet area of the first flow passage is 0.5-1.5.
As a further explanation of the above solution, the top plate is a flat plate, or an inner concave plate that is concave from two sides to the middle, or an outer convex plate that is convex from two sides to the middle.
As a further explanation of the above scheme, each of the second flow channels is rectangular, and a long side direction of each of the second flow channels is consistent with a length direction of the top plate.
As a further explanation of the above solution, each of the second flow passages is divided into a plurality of groups, and adjacent two groups are separated by a partition plate integrally formed on the flame vent single piece.
As a further illustration of the above scheme, each group comprises 3-5 of said second flow channels.
As a further explanation of the above scheme, the lengths of the second flow channels in the same group are the same, the widths of the second flow channels in the middle are different, and the widths of the second flow channels in the two sides are greater.
As a further explanation of the scheme, in each group, the interval between two adjacent rectangles is 0.5-5 mm, and the width of the dividing sheet is 0.5-10 mm.
As a further explanation of the above scheme, the two side plates of the flame vent single piece are welded and fixed with the inner side of the inner shell.
As a further explanation of the above solution, the inner shell, the outer shell and the flame vent single piece are copper or stainless steel pieces.
A low-nitrogen burner comprising: the low-nitrogen combustor fire exhaust device comprises a shell and a plurality of fire exhaust fins uniformly arranged in the shell, and is characterized in that the fire exhaust fins are low-nitrogen combustor fire exhaust fins as described above.
The utility model provides a gas hot water system, includes gas hot water system body, and sets up combustor on the gas hot water system body, its characterized in that, the combustor is as above low nitrogen combustor, gas hot water system is gas heater or gas hanging stove.
The utility model has the advantages that:
firstly, during actual combustion, premixed gas (premixed with air) with a large gas proportion flows out from the second flow passage and then is combusted to form thick flame, premixed gas with a small gas proportion flows out from the first flow passage and then is combusted to form light flame, and NOx after combustion is reduced through thick-thin combustion. Through practical tests, the low-nitrogen burner provided by the invention is fired to prepare a burner, the NOx content in the flue gas is lower than 15.0ppm, and the low-nitrogen combustion requirement is met.
And secondly, the flame vent single chip adopts an integrally formed structure, so that the outlet size of the second flow channel is easy to control, the mass production is facilitated, the precision of the outlet size of the second flow channel can be well ensured according to the current stamping process level, the NOx amount of the combustion product of the product is stable, and the quality control is facilitated. Particularly, the size and the proportion of the total area of the outlets of the first flow passage and the second flow passage are combined to ensure the stable low-nitrogen combustion.
Thirdly, the width of the second flow channel positioned in the middle of the top plate is slightly larger than the width of the second flow channels positioned on the two sides of the top plate; the flame is concentrated towards the middle part of the burner, thereby avoiding the dispersion of the flame and improving the combustion effect. Experiments prove that when the width of the middle flow channel is 1.1-1.5 times larger than that of the outer flow channel, the content of Nox in the flue gas can be reduced by more than 10 percent.
Drawings
Fig. 1 is a schematic view of a conventional low-nitrogen burner.
Fig. 2 shows a partial top view of fig. 1.
Fig. 3 is a partial cross-sectional view of a low-nitrogen burner fire row fin provided by the present invention.
Fig. 4 is a partial top view of a low nitrogen burner fire row fin provided by the present invention.
FIG. 5 is a schematic structural view of a flame vent monolith.
FIG. 6 is a schematic view of a low-nitrogen burner.
Description of reference numerals:
01: inner shell, 02: outer shell, 03: first flow passage, 04: flame vent monolith, 05: a second flow passage.
1: flame vent single piece, 1-1: two side plates, 1-2: top plate, 2: inner shell, 3: outer shell, 4: first flow passage, 5: second flow passage, 6: a separator.
Detailed Description
In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.
The following description will be further made in conjunction with the accompanying drawings of the specification, so that the technical solution and the advantages of the present invention are clearer and clearer. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.
Example one
3-5, a low-nitrogen burner fire row sheet comprises an inner shell 2, an outer shell 3 and a flame vent single sheet 1 which are assembled together, wherein a first flow channel 4 is formed between the inner shell 2 and the outer shell 3, and the flame vent single sheet 1 is arranged in the inner shell 2; the flame vent single piece 1 is characterized by comprising two integrally formed side plates 1-1, a top plate 1-2 and a plurality of second flow channels 5 positioned on the top plate 1-2, wherein the two side plates 1-1 are fixed with two sides of the combustor inner shell 2, and the top plate 1-2 is flush with the top of the combustor inner shell 2.
Wherein the section of the flame vent single sheet 1 is Jiong-shaped. Preferably, each of the second flow channels 5 is rectangular, and the long side direction of each of the second flow channels 5 is identical to the length direction of the top plate 1-2. In other embodiments, the top plate may be configured to be concave or convex, and is not limited to this embodiment.
Preferably, each of the second flow channels 5 is divided into a plurality of groups, and adjacent groups are separated by a partition plate 6 integrally formed on the flame vent single sheet 1. The number of the second flow channels 5 contained in each group is 3-5, and the second flow channels 5 are uniformly distributed on the top plate 1-2 of the flame vent single sheet by taking the group as a unit. The second flow channels 5 of the same group have the same length and different widths, and the second flow channels 5 of the same group are parallel to each other.
Preferably, the total area of the outlets of the first flow channel is 120-370 mm2The total outlet area of the second flow channel is 110-330 mm2And the ratio of the total outlet area of the second flow passage to the total outlet area of the first flow passage is 0.5-1.5.
Preferably, in each group, the interval between two adjacent rectangles is 0.5-5 mm, and the width of the dividing sheet is 0.5-10 mm.
In this embodiment, each group includes three second flow channels 5, each second flow channel 5 of the same group has the same length, and the width of the second flow channel located in the middle of the top plate 1-2 is slightly larger than the width of the second flow channels located on both sides of the top plate 1-2. Therefore, the flame can be concentrated towards the middle part of the burner, the dispersion of the flame is avoided, and the combustion effect is improved. Experiments prove that when the width of the middle flow channel is 1.1-1.5 times larger than that of the outer flow channel, the content of Nox in the flue gas can be reduced by more than 10 percent.
Further preferably, the inner shell 2, the outer shell 3 and the flame vent single piece 1 are copper or stainless steel pieces. The two sides of the flame vent single piece 1 are welded and fixed with the inner side of the combustor inner shell 2, so that the processing and assembling efficiency and the fixing effect are ensured, and the deformation caused by accidental stress during the installation of the flame vent single piece is avoided.
During actual combustion, premixed gas with a large gas proportion (premixed with air) flows out from the second flow channel and is combusted to form a thick flame, premixed gas with a small gas proportion flows out from the first flow channel and is combusted to form a thin flame, and NOx after combustion is reduced through thick-thin combustion.
Compared with the prior art, the utility model discloses a piece is arranged to low nitrogen combustor fire adopts integrated into one piece's flame mouth monolithic structure, can guarantee batch production's stability, according to the technological level of present punching press, the exit dimension of assurance second runner that can be fine for the combustion product NOx volume of combustor is stable, does benefit to quality control and the batch production of being convenient for.
Example two
As shown in fig. 6, a low-nitrogen burner includes: the low-nitrogen combustor fire exhaust device comprises a shell and a plurality of fire exhaust fins uniformly arranged in the shell, and is characterized in that the fire exhaust fins are low-nitrogen combustor fire exhaust fins as described in the first embodiment.
The low-nitrogen burner provided by the embodiment has all the advantages of the embodiment, and as for the specific structure of the low-nitrogen burner, various structures which are known now or can be realized in the future can be adopted, and the details are not repeated here.
EXAMPLE III
The gas water heating equipment comprises a gas water heating equipment body and a burner arranged on the gas water heating equipment body, and is characterized in that the burner is a low-nitrogen burner as in the second embodiment, and the gas water heating equipment is a gas water heater or a gas wall-mounted furnace.
The gas water heating device provided by the embodiment has all the advantages of the embodiment, and the description is omitted.
It will be understood by those skilled in the art from the foregoing description of the structure and principles that the present invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the known art are intended to fall within the scope of the invention, which is defined by the claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.
Claims (10)
1. A low-nitrogen burner fire exhaust fin comprises an inner shell, an outer shell and a flame vent single piece which are assembled together, wherein a first flow channel is formed between the inner shell and the outer shell, and the flame vent single piece is arranged in the inner shell; the flame vent single piece comprises a side plate, a top plate and a plurality of second flow channels, wherein the side plate, the top plate and the second flow channels are integrally formed, the side plate is fixed to two sides of the inner shell, and the top plate is flush with the top of the inner shell.
2. The low-nitrogen burner fire plate as claimed in claim 1, wherein the total outlet area of the first flow channels is 120 to 370mm2The total outlet area of the second flow channel is 110-330 mm2And the ratio of the total outlet area of the second flow passage to the total outlet area of the first flow passage is 0.5-1.5.
3. The low-nitrogen burner fire grate of claim 1, wherein the top plate is a flat plate, or an inner concave plate which is concave from two sides to the middle, or an outer convex plate which is convex from two sides to the middle.
4. The low nitrogen burner fire plate of claim 1, wherein each of said second flow channels is rectangular and the long side of each of said second flow channels runs in the same direction as the length of said top plate.
5. The low nitrogen burner fire plate of claim 4, wherein each of said second flow paths is divided into a plurality of groups, and adjacent groups are separated by a divider integrally formed on said single piece of flame ports.
6. The low nitrogen burner fire plate of claim 5, wherein each group contains 3-5 of said second flow channels, each of said second flow channels of the same group has the same length and different width, and the width of said second flow channels in the middle is greater than that in the two sides.
7. The low-nitrogen burner fire plate according to claim 5, wherein the interval between two adjacent rectangles in each group is 0.5-5 mm, and the width of the separation plate is 0.5-10 mm.
8. The low-nitrogen burner fire row sheet as claimed in claim 1, wherein the two side plates of the single flame vent are welded and fixed with the inner side of the inner casing.
9. A low-nitrogen burner comprising: a housing and a plurality of fire louvers uniformly arranged in the housing, wherein the fire louvers are the low nitrogen burner fire louvers as claimed in any one of claims 1 to 8.
10. A gas hot water apparatus, includes gas hot water apparatus body, and sets up combustor on the gas hot water apparatus body, its characterized in that, the combustor is as claim 9 the low nitrogen combustor, gas hot water apparatus is gas water heater or gas hanging stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920812381.1U CN210688212U (en) | 2019-05-31 | 2019-05-31 | Low-nitrogen burner fire discharge piece, low-nitrogen burner and gas water heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920812381.1U CN210688212U (en) | 2019-05-31 | 2019-05-31 | Low-nitrogen burner fire discharge piece, low-nitrogen burner and gas water heating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210688212U true CN210688212U (en) | 2020-06-05 |
Family
ID=70886836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920812381.1U Active CN210688212U (en) | 2019-05-31 | 2019-05-31 | Low-nitrogen burner fire discharge piece, low-nitrogen burner and gas water heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210688212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230815A (en) * | 2019-05-31 | 2019-09-13 | 广东万家乐燃气具有限公司 | A kind of low NO fire row piece, low NO and gas and hot water equipment |
-
2019
- 2019-05-31 CN CN201920812381.1U patent/CN210688212U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230815A (en) * | 2019-05-31 | 2019-09-13 | 广东万家乐燃气具有限公司 | A kind of low NO fire row piece, low NO and gas and hot water equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210688207U (en) | Low-nitrogen burner fire row, low-nitrogen burner and gas water heating equipment | |
| US9372011B2 (en) | Heat exchanger and gas-fired furnace comprising the same | |
| RU2613105C2 (en) | Surface combustion gas burner | |
| CN210688212U (en) | Low-nitrogen burner fire discharge piece, low-nitrogen burner and gas water heating equipment | |
| CN210688208U (en) | Concatenation formula low-nitrogen combustor fire row, low-nitrogen combustor and gas hot water equipment | |
| WO2013172547A1 (en) | Condensing heat exchanger and boiler/water hearter including the same | |
| CN112856420A (en) | Fire grate, burner and water heating equipment | |
| CN112066369B (en) | Combustor, hanging stove and water heater | |
| CN211146488U (en) | Low-nitrogen combustor and gas water heating equipment | |
| CN211876380U (en) | Combustor and gas heater who has it | |
| CN114396621A (en) | Fire grate, combustor and gas water heater | |
| CN210601610U (en) | Combustor monomer, low-nitrogen combustor and gas hot water equipment | |
| CN211854001U (en) | Water-cooling full-premixing gas ultra-low nitrogen plane burner | |
| CN110530010B (en) | Full premix type water heater | |
| CN214275714U (en) | Water-cooling full premix burner | |
| CN219589159U (en) | Heat exchanger assembly and water heater | |
| CN211667817U (en) | Strong-pumping type gas water heater and combustor for same | |
| CN214370179U (en) | Combustor with enhanced type light fire hole structure | |
| CN219589166U (en) | Heat exchanger and water heater | |
| CN210601604U (en) | Distributor, combustor and gas hot water equipment of riveted structure | |
| CN216523332U (en) | Heat exchange fin, heat exchanger and gas water heating equipment | |
| CN110542091A (en) | Low-nitrogen combustor and gas water heating equipment | |
| CN219589158U (en) | Heat exchanger and water heater | |
| CN216693534U (en) | Low-emission combustor and wall-mounted boiler thereof | |
| CN220870862U (en) | Low-nitrogen burner and wall-mounted furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |