CN110542091A - Low-nitrogen combustor and gas water heating equipment - Google Patents
Low-nitrogen combustor and gas water heating equipment Download PDFInfo
- Publication number
- CN110542091A CN110542091A CN201910776814.7A CN201910776814A CN110542091A CN 110542091 A CN110542091 A CN 110542091A CN 201910776814 A CN201910776814 A CN 201910776814A CN 110542091 A CN110542091 A CN 110542091A
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- China
- Prior art keywords
- low
- flame
- holes
- gas
- main body
- 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.)
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000007789 gas Substances 0.000 title claims abstract description 36
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 17
- 238000010438 heat treatment Methods 0.000 title claims description 11
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 238000005452 bending Methods 0.000 claims abstract description 4
- 210000001503 joint Anatomy 0.000 claims abstract description 4
- 238000005192 partition Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Gas Burners (AREA)
Abstract
the invention discloses a low-nitrogen burner which comprises a main body and an outer frame which are assembled together, wherein the main body is provided with a first ejection channel, a second ejection channel and a first gas mixing cavity; the novel thick flame vent is characterized in that the thick flame vent and the main body are integrated parts formed by stamping, bending and riveting the same plate, and the first injection channel, the second injection channel and the first mixed air cavity are formed by butt joint of corresponding areas symmetrically arranged on two sides of the thick flame vent. The independent flame port is eliminated, the main body and the flame port are integrally designed, the structure of the combustor is simplified, materials required by the combustor are reduced, and the assembly efficiency and the reliability are improved.
Description
Technical Field
The invention relates to the technical field of gas water heating equipment, in particular to a low-nitrogen burner and gas water heating equipment.
Background
As shown in fig. 1-5, the conventional low-nitrogen burner generally comprises a first main body 01, a second main body 02 and a flame vent 03, wherein the flame vent 03 is formed by multiple folding, which results in high processing difficulty, low precision, poor stability in mass production, and easily affects combustion performance if the processing process has some deviation; in addition, the existing low-nitrogen combustor is high in part assembly difficulty and low in production efficiency.
Disclosure of Invention
In view of the problems in the prior art, the present invention aims to provide a low-nitrogen burner with a simple structure and reduced process difficulty.
Another object of the present invention is to provide a gas water heater using the low-nitrogen burner.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a low-nitrogen burner comprises a main body and an outer frame which are assembled together, wherein a first ejection channel, a second ejection channel and a first gas mixing cavity are arranged on the main body, a second gas mixing cavity is formed between the outer frame and the main body, the first gas mixing cavity is communicated with the first ejection channel, the second gas mixing cavity is communicated with the second ejection channel, a thick flame port is arranged at the top of the first gas mixing cavity, a light flame port is arranged at the top of the second gas mixing cavity, and the light flame ports are positioned at two sides of the thick flame port; the thick flame vent is characterized in that the thick flame vent and the main body are integrated parts formed by stamping, bending and riveting the same plate, and the first injection channel, the second injection channel and the first gas mixing cavity are formed by butt joint of corresponding areas symmetrically arranged on two sides of the thick flame vent.
As a further explanation of the above scheme, the top of the first air mixing cavity is of a flat plate structure or a V-shaped structure.
As a further explanation of the above scheme, the rich flame hole is composed of a plurality of rich flame holes, and the rich flame holes include one or more of a circular through hole, an elliptical through hole, and a strip-shaped through hole.
As a further explanation of the above scheme, each of the dense flame holes is a strip-shaped through hole disposed horizontally or longitudinally, and the strip-shaped through holes are parallel to each other.
As a further explanation of the above-described aspect, the shape or size of each of the rich flame holes is not uniform, and the opening area of the rich flame hole located in the middle is > the opening area of the rich flame holes located on both sides.
As a further explanation of the above-described aspect, the density of the rich flame holes located in the middle portion > the density of the rich flame holes located on both sides.
As a further explanation of the above scheme, the shape or size of each rich flame hole is not uniform and is uniformly distributed on the top of the first gas mixing cavity.
As a further explanation of the above scheme, each of the rich flame fire holes is divided into a plurality of groups, and the adjacent two groups are separated by a partition sheet integrally formed on the main body.
A gas fired water heating apparatus having a burner characterised in that the burner is a low nitrogen burner as claimed in any one of the preceding claims.
As a further explanation of the above scheme, the gas water heater is a gas water heater or a gas wall-hanging stove.
The invention has the beneficial effects that:
Firstly, the low-nitrogen combustor provided by the invention omits a separate flame port, adopts the integral design of the main body and the flame port, simplifies the structure of the combustor, reduces the materials required by the combustor production, and improves the assembly efficiency and reliability.
And the flame ports adopt a plane structure or a V-shaped structure, so that the flame ports are easy to process, the processed flame ports have high precision, the performance requirements can be better met, the shape and the distribution form of the flame ports are various, and the adjustability is good.
drawings
Fig. 1 is a structural view of a conventional low-nitrogen combustor.
Fig. 2 is a structural view of a first body of a conventional low-nitrogen burner.
Fig. 3 is a structural view of a second body of a conventional low-nitrogen burner.
Fig. 4 is a structural view of a flame port of a conventional low-nitrogen burner.
Fig. 5 is a plan view of a conventional low-nitrogen burner.
Fig. 6 is a structural view of a low-nitrogen burner provided by the present invention.
FIG. 7 is a top view of a low-NOx burner provided by the present invention.
Fig. 8 is a view showing the outer frame structure of the low-nitrogen burner according to the present invention.
Fig. 9 is a main structure view of the low-nitrogen burner according to the present invention.
Fig. 10 is a body development view of the low-nitrogen combustor provided by the present invention.
Description of reference numerals:
01: main body one, 02: main body two, 03: a flame port.
1: a main body, 2: outer frame, 3: light flame vent, 4: a dense flame port.
Detailed Description
In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection 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, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the feature, 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" 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 meanings 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 invention, unless otherwise specified and 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 describes the embodiments of the present invention with reference to the drawings of the specification, so that the technical solutions and the advantages thereof are more clear and clear. The embodiments described below are exemplary and are intended to be illustrative of the invention, but are not to be construed as limiting the invention.
example one
As shown in fig. 6-10, a low-nitrogen burner comprises a main body 1 and an outer frame 2 which are assembled together, wherein the main body 1 is provided with a first injection passage, a second injection passage and a first air mixing cavity, a second air mixing cavity is formed between the outer frame 2 and the main body 1, the first air mixing cavity is communicated with the first injection passage, the second air mixing cavity is communicated with the second injection passage, the top of the first air mixing cavity is provided with a rich flame vent 4, the top of the second air mixing cavity is provided with a lean flame vent 3, and the lean flame vent 3 is positioned at two sides of the rich flame vent 4; the novel thick flame vent is characterized in that the thick flame vent 4 and the main body 1 are integrated parts formed by stamping, bending and riveting the same plate, and the first injection channel, the second injection channel and the first gas mixing cavity are formed by butt joint of corresponding areas symmetrically arranged on two sides of the thick flame vent 4. The main part 1 and the dense flame port 4 are designed into one part, so that the structure of the burner is simplified, materials required by the production of the burner are reduced, the dense flame port is arranged on the main part and formed by stamping the main part, and then the main part is bent and riveted to form, so that the complex processing steps required by the original folding flame port are omitted, and the stability of higher batch production can be ensured.
The top of the first air mixing cavity is of a flat plate structure or a V-shaped structure. Compared with the original folding flame ports, the novel flame port is easier to process, and the processed dense flame ports are high in precision and can meet performance requirements.
Each thick flame hole is a strip-shaped through hole which is arranged transversely or longitudinally, and the strip-shaped through holes are parallel to each other;
Or, each thick flame hole is a circular through hole;
Or, each thick flame hole is a cross-shaped through hole;
Or, each thick flame hole is a triangular through hole;
or, each thick flame hole is a rhombic through hole;
or, each dense flame hole is a polygonal through hole;
or, each dense flame hole is a flanging hole;
Or, the shape and/or size of each said rich flame hole is not uniform
Preferably, the rich flame holes 4 are composed of a plurality of rich flame holes, and the rich flame holes include one or more of circular through holes, oval through holes and strip-shaped through holes.
In this embodiment, each of the rich flame fire holes 4 is divided into a plurality of groups, and adjacent groups are separated by dividing pieces integrally formed on the main body 1.
Further preferably, each of the rich flame holes is a strip-shaped through hole arranged transversely or longitudinally, and the strip-shaped through holes are parallel to each other.
In this embodiment, the rich flame holes are all strip-shaped through holes arranged transversely, which is not limited to this embodiment, and in other embodiments, the rich flame holes may be in other shapes; the distribution form of the dense flame holes has various options, and the adjustability is better.
Compared with the prior art, the low-nitrogen combustor provided by the embodiment has the following characteristics: 1) the low-nitrogen combustor provided by the invention has the advantages that the independent flame port is omitted, the main body and the flame port are integrally designed, the structure of the combustor is simplified, the materials required by the combustor production are reduced, and the assembly efficiency and the reliability are improved. 2) The thick flame hole adopts a plane structure or a V-shaped structure, the thick flame hole is easy to process, the precision of the processed thick flame hole is high, the performance requirement can be better met, the shape and the distribution form of the flame holes are various, and the adjustability is good.
Example two
The present embodiment provides a low-nitrogen burner, which has a structure substantially the same as that of the first embodiment except that:
The shape or the size of each dense flame hole is different and can be circular, oval or rectangular, and the dense flame holes are uniformly distributed at the top of the first gas mixing cavity.
EXAMPLE III
The present embodiment provides a low-nitrogen burner, which has a structure substantially the same as that of the first embodiment except that:
The shape or the size of each rich flame hole is different, and the opening area of the rich flame hole positioned in the middle is larger than the opening area of the rich flame holes positioned on the two sides. Therefore, the flame can be concentrated towards the middle part of the burner, and the combustion effect is improved.
Example four
The present embodiment provides a low-nitrogen burner, which has a structure substantially the same as that of the first embodiment except that:
The density of the rich flame holes positioned in the middle is greater than the density of the rich flame holes positioned on both sides. Therefore, the flame can be concentrated towards the middle part of the burner, and the combustion effect is improved.
EXAMPLE five
A gas-fired water heating apparatus having a burner, wherein the burner is a low nitrogen burner as described in any one of embodiments one to four.
Wherein, the gas hot water equipment is a gas water heater or a gas wall-hanging stove.
The gas water heating equipment provided by the embodiment has all the advantages of the embodiment, and the specific structure of the gas water heating equipment can adopt the existing or future structure, which is not described herein again.
It will be appreciated by those skilled in the art from the foregoing description of construction and principles that the invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the teachings of the art may be made without departing from the scope of the invention as defined by the appended 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 comprises a main body and an outer frame which are assembled together, wherein a first ejection channel, a second ejection channel and a first gas mixing cavity are arranged on the main body, a second gas mixing cavity is formed between the outer frame and the main body, the first gas mixing cavity is communicated with the first ejection channel, the second gas mixing cavity is communicated with the second ejection channel, a thick flame port is arranged at the top of the first gas mixing cavity, a light flame port is arranged at the top of the second gas mixing cavity, and the light flame ports are positioned at two sides of the thick flame port; the thick flame vent is characterized in that the thick flame vent and the main body are integrated parts formed by stamping, bending and riveting the same plate, and the first injection channel, the second injection channel and the first gas mixing cavity are formed by butt joint of corresponding areas symmetrically arranged on two sides of the thick flame vent.
2. The low-nitrogen burner of claim 1, wherein the top of the first gas mixing chamber has a flat plate structure or a V-shaped structure.
3. The low-nitrogen burner according to claim 1, wherein the rich flame holes are composed of a plurality of rich flame holes, and the rich flame holes comprise one or more of circular through holes, oval through holes and strip-shaped through holes.
4. A low-nitrogen burner according to claim 3, wherein each of said rich flame holes is a horizontally or longitudinally disposed strip-shaped through hole, and said strip-shaped through holes are parallel to each other.
5. A low-nitrogen burner according to claim 3, wherein the shape or size of each of the rich flame holes is not uniform, and the open area of the rich flame holes located in the middle portion > the open area of the rich flame holes located on both sides.
6. A low-nitrogen burner according to claim 3, wherein the density of the rich flame holes in the middle portion is greater than the density of the rich flame holes on both sides.
7. A low-nitrogen burner according to claim 3, wherein the shape or size of the rich flame holes is non-uniform and uniformly distributed at the top of the first gas-mixing chamber.
8. a low-NOx burner as set forth in claim 3 wherein said rich flame holes are divided into a plurality of groups, and adjacent groups are separated by a partition formed integrally with said main body.
9. A gas fired water heating apparatus having a burner, wherein the burner is a low nitrogen burner as claimed in any one of claims 1 to 8.
10. the gas-fired water heating apparatus according to claim 9, wherein the gas-fired water heating apparatus is a gas water heater or a gas wall-hanging stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910776814.7A CN110542091A (en) | 2019-08-22 | 2019-08-22 | Low-nitrogen combustor and gas water heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910776814.7A CN110542091A (en) | 2019-08-22 | 2019-08-22 | Low-nitrogen combustor and gas water heating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110542091A true CN110542091A (en) | 2019-12-06 |
Family
ID=68711846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910776814.7A Pending CN110542091A (en) | 2019-08-22 | 2019-08-22 | Low-nitrogen combustor and gas water heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110542091A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2718399Y (en) * | 2004-06-21 | 2005-08-17 | 博世（中国）采暖系统有限公司 | Hole core integrated horizontal burner |
| CN109595551A (en) * | 2018-11-22 | 2019-04-09 | 北京庆东纳碧安热能设备有限公司 | A kind of shade burner |
| CN211146488U (en) * | 2019-08-22 | 2020-07-31 | 广东万家乐燃气具有限公司 | Low-nitrogen combustor and gas water heating equipment |
-
2019
- 2019-08-22 CN CN201910776814.7A patent/CN110542091A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2718399Y (en) * | 2004-06-21 | 2005-08-17 | 博世（中国）采暖系统有限公司 | Hole core integrated horizontal burner |
| CN109595551A (en) * | 2018-11-22 | 2019-04-09 | 北京庆东纳碧安热能设备有限公司 | A kind of shade burner |
| CN211146488U (en) * | 2019-08-22 | 2020-07-31 | 广东万家乐燃气具有限公司 | Low-nitrogen combustor and gas water heating equipment |
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