CN111895404A - Combustor with enhanced fire transmission function and heating stove using same - Google Patents
Combustor with enhanced fire transmission function and heating stove using same Download PDFInfo
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- CN111895404A CN111895404A CN202010627608.2A CN202010627608A CN111895404A CN 111895404 A CN111895404 A CN 111895404A CN 202010627608 A CN202010627608 A CN 202010627608A CN 111895404 A CN111895404 A CN 111895404A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 34
- 238000010438 heat treatment Methods 0.000 title claims abstract description 18
- 210000002105 tongue Anatomy 0.000 claims description 35
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N3/00—Regulating air supply or draught
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
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- 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 burner with an enhanced fire transmission function and a heating stove using the same, wherein the burner with the enhanced fire transmission function comprises: first aerofoil is installed in the air inlet one end of keeping away from the combustor subassembly, the air inlet one end near the combustor subassembly is installed to the second aerofoil, it establishes ties each other and then strengthens passing the fire function to be equipped with the flame that passes the fire structure and make a plurality of biography fire holes on the combustor subassembly on the first aerofoil. According to the burner with the enhanced fire transmission function, the relative positions of the plurality of fire grate single pieces in the burner assembly are fixed through the first air plate with the fire transmission structure, the overall strength of the burner assembly is ensured, gaps among the plurality of fire grate single pieces are eliminated, and the flame can be rapidly transmitted, so that the purpose of improving the success rate of fire transmission is achieved.
Description
Technical Field
The invention belongs to the technical field of gas heating stoves, and particularly relates to a burner with a strengthened fire transmission function and a heating stove using the burner.
Background
The existing burners of heating furnaces are mainly divided into atmospheric burners and fully premixed burners, wherein the atmospheric burners are most widely used, the atmospheric burners are generally formed by arranging a plurality of fire grate single pieces according to a certain quantity, and the diameter of a throat of a mixing section of the fire grate single pieces is not less than 17mm because the mixing effect of gas and air needs to be ensured, so that the distance of the diameter of at least one throat is reserved between the fire grate single pieces. The larger the distance between the fire grate single sheets is, the slower the fire transfer speed is, the success rate is reduced, the longer the ignition heating time is caused to be, the hot water comfort is influenced, and the larger the ignition failure of the whole machine is caused to be, so that the whole machine cannot be used.
Currently, the industry has several solutions to this problem: 1) the secondary air plate is added, so that the secondary air flow rate at the fire grate fire hole is reduced, and the fire transfer success rate is improved, however, the secondary air plate needs to be added in the scheme, and the current situation of low reliability exists; 2) the variable speed fan is adopted to reduce the rotating speed of the fan during ignition, so that the success rate of fire transfer is improved, but the method is only suitable for products with speed regulation function; 3) adopt compound monolithic, the combustor monolithic divide into fire hole piece and monolithic main part promptly, and wherein the monolithic main part contains projection section, mixed section and biography fire structure, and the fire hole piece is inlayed on the monolithic main part, adopts the mode of spot welding to fix, but this kind of scheme fire is arranged and is processed complicacy, and the cost is higher, and is higher to the welding quality requirement of fire hole piece, long-time the use, and the fire hole piece has the risk of desoldering.
Disclosure of Invention
In order to solve the problems, the invention provides the burner with the strengthened fire transmission function, the relative positions of a plurality of fire row single pieces in the burner assembly are fixed through the first air plate with the fire transmission structure, the integral strength of the burner assembly is ensured, gaps among the fire row single pieces are eliminated, the flame can be rapidly transmitted, and the purpose of improving the success rate of fire transmission is achieved.
Another object of the present invention is to provide a heating stove.
The technical scheme adopted by the invention is as follows:
the utility model provides a combustor of biography fire function is reinforceed in area, is including having the second aerofoil of a plurality of combustor subassemblies that pass the fire hole, first aerofoil and being used for adjusting the air input, the air inlet one end of combustor subassembly is kept away from in first aerofoil installation, the air inlet one end near the combustor subassembly is installed to the second aerofoil, it establishes ties each other and then strengthens passing the fire function to be equipped with the flame that passes the fire structure and make a plurality of biography fire holes on the combustor subassembly on the first aerofoil.
Preferably, first aerofoil includes first aerofoil body and passes the fire tongue, first aerofoil body is installed in the air inlet one end of keeping away from the combustor subassembly, and is a plurality of pass the fire tongue interval and fix the top of first aerofoil body and form the structure of passing a fire with first aerofoil body mutually perpendicular.
Preferably, the combustor subassembly includes that a plurality of fires arrange monolithic, spacing spring, spacing post and fire and arrange the biography fire hole, pass the fire tongue and inlay between two fire row monolithic, spacing spring mounting is arranged the both sides of monolithic in order to be used for fixed a plurality of fires and is arranged the monolithic at first aerofoil body and a plurality of fires, spacing post is installed and is arranged monolithic one end in order to be used for fixed a plurality of fires on second aerofoil and a plurality of fires row monolithic one end, and is a plurality of fire row monolithic upper portion has all been seted up fire row and has been passed the fire hole.
Preferably, a plurality of the fire row fire transfer holes are all located at the same height, and a plurality of the fire transfer tongues are all located at the same height.
Preferably, the height of the fire transmission tongues does not exceed the height of the fire transmission holes of the fire rows for rapid propagation of flames between the single pieces of adjacent fire rows.
Preferably, the width of the fire transfer tongues is equal to the distance between two adjacent fire row single pieces.
Preferably, the length of the fire transfer tongues does not exceed twice the distance between two adjacent fire row single pieces.
Preferably, the fire transmitting tongue and the rear wind plate body are formed in a one-time stamping mode.
Preferably, the second air plate is provided with an air inlet hole for adjusting air inflow.
The other technical scheme of the invention is realized as follows:
the utility model provides a heating stove, includes area reinforce combustor and the heating stove body of biography fire function, the area is strengthened the combustor of passing the fire function and is installed at the heating stove originally internally.
Compared with the prior art, the burner with the enhanced fire transmission function not only fixes the relative positions of the plurality of fire grate single pieces in the burner assembly through the first air plate with the fire transmission structure, ensures the overall strength of the burner assembly, but also eliminates the gaps among the plurality of fire grate single pieces, ensures that flame can be quickly transmitted, thereby achieving the purpose of improving the success rate of fire transmission.
Drawings
FIG. 1 is a schematic structural diagram of a burner with an enhanced fire-transfer function according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a first air plate of a burner with an enhanced fire-transfer function according to embodiment 1 of the present invention;
FIG. 3 is a schematic structural diagram of a burner assembly of a burner with an enhanced fire-transfer function according to embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of a second air plate of a burner with an enhanced fire-transfer function according to embodiment 1 of the present invention.
Description of the reference numerals
1-a burner component, 11-a fire grate single sheet, 12-a limiting spring, 13-a limiting column, 14-a fire grate fire transmission hole, 2-a first air plate, 21-a first air plate body, 22-a fire transmission tongue, 3-a second air plate and 31-an air inlet hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The invention embodiment 1 provides a burner with an enhanced fire transfer function, as shown in fig. 1, comprising a burner assembly 1 with a plurality of fire transfer holes, a first air plate 2 and a second air plate 3 for adjusting air inflow, wherein the first air plate 2 is installed at one end of an air inlet far away from the burner assembly 1, the second air plate 3 is installed at one end of the air inlet close to the burner assembly 1, and the first air plate 2 is provided with a fire transfer structure so that flames of the plurality of fire transfer holes on the burner assembly 1 are mutually connected in series to further enhance the fire transfer function.
Like this, arrange the relative position of monolithic through a plurality of fires in the fixed combustor subassembly 1 of first aerofoil 2 that is equipped with the structure of passing a fire, guarantee combustor subassembly 1's bulk strength, eliminate simultaneously in the combustor subassembly 1 a plurality of fires and arrange the clearance between the monolithic, make the flame of a plurality of passing a fire holes establish ties each other and then strengthen the function of passing a fire on combustor subassembly 1, guarantee that flame can propagate fast to reach the purpose that improves the success rate of passing a fire.
As shown in fig. 2, the first air plate 2 includes a first air plate body 21 and a plurality of fire-transmitting tongues 22, the first air plate body 21 is installed at one end of the air inlet far away from the burner assembly 1, and the plurality of fire-transmitting tongues 22 are fixed at the top end of the first air plate body 21 at intervals and are perpendicular to the first air plate body 21 to form a fire-transmitting structure.
Like this, through the one end that the air inlet was kept away from to the fixed combustor subassembly 1 of first aerofoil body 21, eliminate the clearance between the monolithic through passing the fiery tongue 22 in the combustor subassembly 1 a plurality of fires to guarantee that flame can propagate fast, improve and pass a fire the success rate.
As shown in fig. 3, the burner assembly 1 includes a plurality of fire row single pieces 11, a limit spring 12, a limit column 13 and a fire row fire transmission hole 14, the fire transmission tongue 22 is embedded between two fire row single pieces 11, the limit spring 12 is installed on both sides of the first wind plate body 21 and the plurality of fire row single pieces 11 for fixing the plurality of fire row single pieces 11, the limit column 13 is installed on one end of the second wind plate 3 and the plurality of fire row single pieces 11 for fixing the plurality of fire row single pieces 11, and the fire row fire transmission hole 14 is opened on the upper portion of the fire row single pieces 11.
Like this, will pass fire tongue 22 and inlay between two fire row monolithic 11, arrange the both sides of monolithic 11 through two spacing springs 12 fixed a plurality of fires respectively, arrange monolithic 11 and second aerofoil 3 with a plurality of fires through spacing post 13 and fix together, arrange the gas of UNICOM between a plurality of adjacent fire row monolithic 11 through fire and pass fire hole 14 and pass fire tongue 22, propagate flame.
The fire row fire transfer holes 14 are all located at the same height, and the fire transfer tongues 22 are all located at the same height.
Like this, through a plurality of fire row passes fire hole 14 and all is located same height to gas and flame are in a plurality of fire row passes smooth transmission between the fire hole 14, through a plurality of pass fire tongue 22 all is located same height, so that gas and flame between adjacent fire row monolithic 11 pass through to pass fire tongue 22 and transmit in proper order, thereby improve and pass fire success rate.
The height of the fire transfer tongues 22 does not exceed the height of the fire row fire transfer holes 14 for rapid propagation of flames between adjacent fire row single pieces 11.
Like this, through passing the height of fire tongue 22 and not being more than the height that the fire arranged and spread fire hole 14, the height that generally passes fire tongue 22 equals or is less than the height that the fire arranged and spread fire hole 14 slightly to guarantee that the gas can flow on passing fire tongue 22 smoothly through fire arranged and spread fire hole 14, guarantee that the gas between the adjacent fire arranged monolithic can the UNICOM fast, guarantee the quick propagation of flame.
The width of the fire transmission tongues 22 is equal to the distance between two adjacent fire row single pieces 11.
Therefore, the relative positions of the adjacent fire grate single sheets 11 can be fixed through the fire transmission tongues 22, the overall strength of the burner assembly is ensured, gaps among the fire grate single sheets 11 can be eliminated, and the rapid propagation of flame is ensured.
The length of the fire transfer tongues 22 does not exceed twice the distance between two adjacent fire row single pieces 11.
Thus, the length of the transfer lingoes 22 can be determined by the effect of the burner emissions, and generally does not exceed twice the distance between two adjacent fire row monoliths 11.
The fire transmission tongue 22 and the rear wind plate body 21 are formed in a one-time stamping mode.
Therefore, the fire transmitting tongue 22 and the rear air duct plate body 21 are formed in a one-step stamping mode, the production and assembly changes are small compared with the existing combustor, the cost is not increased, and the burner is suitable for large-scale popularization.
As shown in fig. 4, the second air plate 3 is provided with an air inlet hole 31 for adjusting the air inlet amount.
In this way, the air quantity required by combustion is adjusted through the air inlet hole 31 formed in the second air plate 3, and the variation of the air along with the gas pressure can be adjusted through the size of the opening.
According to the burner with the enhanced fire transmission function, the relative positions of the plurality of fire grate single pieces in the burner assembly are fixed through the first air plate with the fire transmission structure, the overall strength of the burner assembly is ensured, gaps among the plurality of fire grate single pieces are eliminated, and the flame can be rapidly transmitted, so that the purpose of improving the success rate of fire transmission is achieved.
Example 2
The embodiment 2 of the invention provides a heating stove, which comprises a burner with an intensified fire transmission function and a heating stove body, wherein the burner with the intensified fire transmission function is arranged in the heating stove body.
According to the heating stove, the burner with the intensified fire transmission function is used for eliminating the gaps among the plurality of fire grate single pieces in the burner, and the rapid propagation of flame is guaranteed, so that the purpose of improving the success rate of fire transmission is achieved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a combustor of biography fire function is reinforceed in area, its characterized in that, including combustor subassembly (1), first aerofoil (2) that have a plurality of biography fire holes and second aerofoil (3) that are used for adjusting the air input, the air inlet one end of keeping away from combustor subassembly (1) is installed in first aerofoil (2), air inlet one end near combustor subassembly (1) is installed in second aerofoil (3), it establishes ties each other and then strengthens passing the fire function to be equipped with the flame that passes the fire structure and make a plurality of biography fire holes on combustor subassembly (1) on first aerofoil (2).
2. The burner with the function of intensifying fire transfer of claim 1, wherein the first air plate (2) comprises a first air plate body (21) and fire transfer tongues (22), the first air plate body (21) is installed at one end of the air inlet far away from the burner assembly (1), and the fire transfer tongues (22) are fixed at the top end of the first air plate body (21) at intervals and are perpendicular to the first air plate body (21) to form a fire transfer structure.
3. The burner with the strengthened fire transfer function according to claim 2, wherein the burner assembly (1) comprises a plurality of fire row single pieces (11), a limiting spring (12), a limiting column (13) and fire row fire transfer holes (14), the fire transfer tongue (22) is embedded between the two fire row single pieces (11), the limiting spring (12) is installed on two sides of the first wind plate body (21) and the fire row single pieces (11) to fix the fire row single pieces (11), the limiting column (13) is installed on one end of the second wind plate (3) and the fire row single pieces (11) to fix the fire row single pieces (11), and the fire row fire transfer holes (14) are formed in the upper parts of the fire row single pieces (11).
4. The burner with the enhanced fire transfer function of claim 3, wherein the plurality of fire row fire transfer holes (14) are all located at the same height, and the plurality of fire transfer tongues (22) are all located at the same height.
5. Burner with enhanced fire transfer function according to claim 3 or 4, characterized in that the height of the fire transfer tongues (22) does not exceed the height of the fire row fire transfer holes (14) for rapid propagation of the flame between adjacent fire row monoliths (11).
6. Burner with enhanced fire transfer function according to claim 5, characterized in that the width of the fire transfer tongue (22) is equal to the distance between two adjacent fire row monoliths (11).
7. Burner with enhanced fire transfer function according to claim 6, characterized in that the length of the fire transfer tongue (22) does not exceed twice the distance between two adjacent fire row monoliths (11).
8. The burner with the function of intensifying fire transfer of claim 7, wherein the fire transfer tongue (22) and the rear air grid body (21) are formed by one-time punch forming.
9. The burner with the function of intensifying fire transfer as recited in claim 8, wherein the second air plate (3) is opened with an air inlet hole (31) for adjusting the air intake amount.
10. A heating stove characterized by comprising the burner with the intensified fire transmission function and a heating stove body as claimed in any one of claims 1 to 9, the burner with the intensified fire transmission function being installed in the heating stove body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010627608.2A CN111895404B (en) | 2020-07-01 | 2020-07-01 | Combustor with enhanced fire transmission function and heating stove using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010627608.2A CN111895404B (en) | 2020-07-01 | 2020-07-01 | Combustor with enhanced fire transmission function and heating stove using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111895404A true CN111895404A (en) | 2020-11-06 |
| CN111895404B CN111895404B (en) | 2022-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010627608.2A Active CN111895404B (en) | 2020-07-01 | 2020-07-01 | Combustor with enhanced fire transmission function and heating stove using same |
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| Country | Link |
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| CN (1) | CN111895404B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963231A (en) * | 2021-09-01 | 2022-08-30 | 重庆海尔热水器有限公司 | Ignition device and combustor using same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051764A (en) * | 2016-07-11 | 2016-10-26 | 万家乐热能科技有限公司 | Low NOx burner and wall-hanging stove provided with same |
| CN207230943U (en) * | 2017-08-23 | 2018-04-13 | 广东万和新电气股份有限公司 | A kind of burner and gas heater |
| EP3343105A1 (en) * | 2016-12-27 | 2018-07-04 | Vaillant (Wuxi) Heating Equipment Co., Ltd. | Burner units and gas-fired water heating appliance using the same |
| CN207936511U (en) * | 2018-02-26 | 2018-10-02 | 芜湖美的厨卫电器制造有限公司 | Burner for gas heater and the gas heater with it |
| CN208074947U (en) * | 2018-03-05 | 2018-11-09 | 芜湖美的厨卫电器制造有限公司 | Burner structure for gas heater and the gas heater with it |
| CN209991452U (en) * | 2019-02-14 | 2020-01-24 | 华帝股份有限公司 | A kind of burner |
-
2020
- 2020-07-01 CN CN202010627608.2A patent/CN111895404B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051764A (en) * | 2016-07-11 | 2016-10-26 | 万家乐热能科技有限公司 | Low NOx burner and wall-hanging stove provided with same |
| EP3343105A1 (en) * | 2016-12-27 | 2018-07-04 | Vaillant (Wuxi) Heating Equipment Co., Ltd. | Burner units and gas-fired water heating appliance using the same |
| CN207230943U (en) * | 2017-08-23 | 2018-04-13 | 广东万和新电气股份有限公司 | A kind of burner and gas heater |
| CN207936511U (en) * | 2018-02-26 | 2018-10-02 | 芜湖美的厨卫电器制造有限公司 | Burner for gas heater and the gas heater with it |
| CN208074947U (en) * | 2018-03-05 | 2018-11-09 | 芜湖美的厨卫电器制造有限公司 | Burner structure for gas heater and the gas heater with it |
| CN209991452U (en) * | 2019-02-14 | 2020-01-24 | 华帝股份有限公司 | A kind of burner |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963231A (en) * | 2021-09-01 | 2022-08-30 | 重庆海尔热水器有限公司 | Ignition device and combustor using same |
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| Publication number | Publication date |
|---|---|
| CN111895404B (en) | 2022-07-15 |
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