CN110986148B - Combustion device of gas fireplace - Google Patents
Combustion device of gas fireplace Download PDFInfo
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- CN110986148B CN110986148B CN201910407368.2A CN201910407368A CN110986148B CN 110986148 B CN110986148 B CN 110986148B CN 201910407368 A CN201910407368 A CN 201910407368A CN 110986148 B CN110986148 B CN 110986148B
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- combustion air
- air inlet
- combustion
- burner
- fuel
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 146
- 239000004449 solid propellant Substances 0.000 claims abstract description 38
- 239000000446 fuel Substances 0.000 claims abstract description 34
- 238000004088 simulation Methods 0.000 claims description 7
- 230000001788 irregular Effects 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 239000007787 solid Substances 0.000 abstract 1
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 24
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 24
- 238000010438 heat treatment Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010000496 acne Diseases 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Abstract
The invention discloses a combustion device of a gas fireplace, which comprises a burner and simulated solid fuel, wherein the burner is arranged below the simulated solid fuel, a fire outlet of the burner faces at least one side of the periphery of the simulated solid fuel, an independent combustion air inlet channel is arranged below the burner, a third combustion air inlet is arranged in the middle of the burner, a baffle plate is arranged below the burner, a second combustion air inlet is formed between the baffle plate and the lower surface of the burner, and the combustion air inlet channel supplies air to the second combustion air inlet and the third combustion air inlet. The middle of the simulated solid fuel is also provided with a combustion air notch or a gap, so that the combustion air can be supplemented to the middle area of the flame above the simulated solid, and the secondary sectional combustion of the fuel is realized. The combustion device of the gas fireplace improves the combustion effect by controlling and supplementing the combustion air in all areas of the flame, and is suitable for combustion structures on most gas fireplaces.
Description
Technical Field
The invention relates to the field of gas fireplace equipment, in particular to a combustion device of a gas fireplace.
Background
The gas fireplace is used as heating equipment using clean energy, can provide enough heating effect, can provide real flame for appreciation compared with a heater (such as a wall hanging stove), is popular with wide consumers, integrates heating and decoration, has better appreciation, is a single cavity structure, is provided with a certain number of openings on the surface of the cavity of the burner as fire holes for burning the flame, and is provided with a plurality of coal beds or simulated solid fuels on the upper part and/or the periphery of the burner, the single burner is not capable of being controlled independently due to the fact that the flame at each place lacks layering sense, the appreciation is not rich enough, and two or more burners are arranged on some novel gas fireplaces in a tightly connected mode under the same simulated solid fuel.
In addition, when people watch the gas fireplace, in order to achieve the best ornamental effect, flames with brighter colors are required to be provided, so that combustion air in each area needs to be controlled when fuel is combusted, and the combustion is sufficient but cannot be too sufficient. In addition, nitrogen oxides are generated during combustion of the fuel, and the nitrogen oxides are harmful to human bodies and the environment, so that the content of the nitrogen oxides generated during combustion of the fuel needs to be reduced, and the nitrogen oxides are generally controlled firstly by controlling the air supplement amount during combustion and secondly by controlling the flame temperature during combustion.
However, in the prior art, when a single burner or two or more burners are simultaneously arranged in a hearth of a gas fireplace, a fuel combustion area near the burner is not provided with a separate combustion air inlet channel, combustion air at all positions of flames is not controlled, and because the combustion air needed in all positions of the hearth is inconsistent, partial areas such as the vicinity of fire holes of the burner are insufficient, and other partial areas are excessive in combustion air, so that in the area where the combustion air is insufficient, the combustion effect is poor, blackheads are easily generated by the flames, and in the area where the combustion air is excessive, the flame temperature is high, and a large amount of nitrogen oxides are easily generated.
Disclosure of Invention
First, the technical problem to be solved
The invention aims to provide a combustion device of a gas fireplace. After the invention is used for the gas wall furnace, different layers of combination control of flames can be performed, the combustion air supply quantity of each area where the fuel is combusted can be controlled, the sectional combustion of the fuel is realized, the combustion is full, the flames are bright, and the nitrogen oxide content generated by the combustion of the fuel is effectively reduced.
(II) technical scheme
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a gas fireplace burner, includes combustor and emulation solid fuel, be provided with the fuel air inlet on the combustor, emulation solid fuel take the upper surface of combustor, the combustor can be single whole, also can be that two or more combustors are put together and are arranged the below of same department emulation solid fuel. The burner is provided with fire holes on at least one side around the simulated solid fuel, an independent combustion air inlet channel is arranged below the burner, an inlet of the combustion air inlet channel is positioned outside a furnace chamber of the gas fireplace and/or outside the bottom of the furnace chamber, a third combustion air inlet is further arranged in the middle of the burner, the third combustion air inlet can be formed in the middle of a single integral burner or can be a space between two or more burners, and the combustion air inlet channel is communicated with the third combustion air inlet. The simulation solid fuel can be integrated as well as spliced by two or more than two, and the simulation solid fuel is provided with a combustion air notch which is directly communicated with the third combustion air inlet.
Further, a partition plate is arranged below the burner, a second combustion air inlet opening to the fire outlet hole is formed between the partition plate and the surface of the burner, and the second combustion air inlet opening is communicated with the combustion air inlet channel.
During combustion, the combustible gas is ignited at the fire outlet, and the first combustion is carried out by utilizing the supplementary combustion air in the second combustion air inlet, and then the supplementary combustion air is carried out above the simulated solid fuel through the third combustion air inlet and the combustion air notch, and the middle area and the upper part of the flame are supplemented with the combustion air, so that the secondary combustion of the fuel is carried out, the secondary sectional combustion of the fuel is realized, and the supply quantity of the combustion air and the flame temperature of the fuel combustion at all positions can be controlled.
Further, the third combustion air inlet is a groove-shaped opening, and the average width of the groove-shaped opening is 2 mm-30 mm.
Further, the combustion air slot may be an irregular bar slot, or a single or multiple small holes, or a combination of an irregular bar slot and a small hole.
Further, gaps or clearances are arranged between two or more than two simulated solid fuels, and the combustion air notch is formed by the gaps or clearances. .
Further, the combustion air notch can be one or more than one, and the average width of the combustion air notch is 1 mm-25 mm.
Further, the combustion air inlet channel is arranged at the periphery of the fuel inlet.
(III) beneficial effects
Compared with the prior art, the beneficial effects are as follows:
According to the combustion device of the gas fireplace, the third combustion air inlet is arranged in the single combustor at the bottom of the same simulation solid fuel and/or between two or more combustors, the combustion air notch is formed in the middle of the simulation solid fuel, the second combustion air inlet is formed in the area, close to the fire outlet, of the lower part of the combustor, and the combustion air is supplemented and controlled in all areas where the fuel burns, so that the combustion is more complete, and the flame temperature in all areas can be reasonably controlled at the same time due to the fact that the temperature of the supplemented combustion air is lower, and the generation of nitrogen oxides is reduced.
Drawings
Fig. 1 is a schematic perspective view of embodiment 1 of the present invention.
Fig. 2 is a partial cross-sectional view of embodiment 1 of the present invention.
Fig. 3 is a schematic perspective view of another view of embodiment 1 of the present invention.
Fig. 4 is an exploded perspective view of embodiment 1 of the present invention.
Fig. 5 is a schematic perspective view of embodiment 2 of the present invention.
Fig. 6 is a partial cross-sectional view of embodiment 2 of the present invention.
Fig. 7 is a schematic perspective view of another view of embodiment 2 of the present invention.
Fig. 8 is an exploded perspective view of embodiment 2 of the present invention.
Fig. 9 is a half sectional view of embodiment 2 of the present invention.
FIG. 10 is a fuel combustion and combustion air trend chart of example 2 of the present invention.
FIG. 11 is a schematic view of the multiple structures of embodiment 2 of the present invention installed simultaneously in the firebox of a gas fireplace.
FIG. 12 is a schematic diagram of a simulated solid fuel in example 3 of the present invention.
Fig. 13 is a schematic perspective view of a solid fuel simulation in embodiment 4 of the present invention.
FIG. 14 is an exploded perspective view of a solid fuel simulation in a single place in example 4 of the present invention.
The corresponding names of the components in the figure are: 1-a burner; 2-emulating a solid fuel; 3-a separator; 4-combustion air inlet channel; 5-nozzle; 6-auxiliary combustion-supporting air inlets; 11-a fire hole; 12-a third combustion air inlet; 13-a second combustion air inlet; 14-fuel intake port; 15-a first combustion air inlet; 21-combustion air slots; 51-fuel ejection port.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1 to 4, a gas fireplace combustion apparatus comprises burners 1 and simulated solid fuels 2, in this embodiment, two burners 1 are combined in pairs and arranged at the lower part of the simulated solid fuels 2, and the simulated solid fuels 2 are lapped on the upper surfaces of the burners 1. The burner 1 is provided with a combustion air inlet channel 4 in the lower part, the combustion air inlet channel 4 is arranged in parallel with a fuel inlet 14 on the burner 1, the inlet of the combustion air inlet channel 4 is positioned outside the hearth, the paired burners 1 are provided with fire outlets 11, in this embodiment, the two sides of the simulated solid fuel 2 are respectively opposite, and a third combustion air inlet 12 is formed at the interval between the paired burners 1, the average width of the third combustion air inlet 12 is 2 mm-30 mm, in this embodiment, about 9mm, a layer of baffle plate 3 is also arranged below the burner 1, a second combustion air inlet 13 leading to the fire outlets 11 is formed between the baffle plate 3 and the lower surface of the burner 1, and the combustion air inlet channel 4 is communicated with the third combustion air inlet 12 and the second combustion air inlet 13. The simulated solid fuel 2 is provided with a combustion air slot 21, the combustion air slot 21 is in direct communication with the third combustion air inlet 12, the combustion air slot 21 is in the form of an irregular bar-shaped slot with an average width of 1mm to 25mm, in the illustration of this embodiment 1 about 4mm. A nozzle 5 is provided in connection with the fuel inlet 14, a fuel outlet 51 is provided in the nozzle 5, and a first combustion air inlet 15 is provided in the fuel inlet 14.
During combustion, the combustible gas is sprayed into the fuel air inlet 14 through the fuel spraying hole 51 on the nozzle 5, the sprayed combustible gas quickly sucks air from the first combustion air inlet 15 into the fuel air inlet 14 according to the Venturi effect, so that the combustible gas and the air are premixed in the fuel air inlet 14, then enter the cavity of the burner 1 from the fuel air inlet 14, are sprayed out from the fire outlet 11 and are ignited, and the flame burns on two sides of the simulated solid fuel 2. Simultaneously, combustion air enters the bottom of the burner 1 from the combustion air inlet channel 4, then reaches the fire hole 11 through the second combustion air inlet 13 to support the combustion of flame, and the combustible gas at the fire hole 13 burns for the first time. The flame of the first combustion of the combustible gas flows upwards along the simulated solid fuel 2, encounters the third combustion air which reaches the upper part of the simulated solid fuel 2 through the third combustion air inlet 12 and the combustion air notch 21, supplements the combustion air at the bottom of the flame, and carries out secondary combustion of the flame. Therefore, through secondary sectional combustion of the flame, the supply quantity of combustion-supporting air for the fuel combustion and the temperature of the flame are reasonably controlled, so that the content of nitrogen oxides generated by the fuel combustion is reduced, and the color of the flame is brighter and cleaner.
Example 2
As shown in fig. 5 to 11, in a gas fireplace combustion apparatus, compared with the embodiment 1, the combustion air intake passage 4 is provided around the fuel intake port 14 on the burner 1, not only the installation space is saved, but also the combustion air from the combustion air intake passage 4 into the third combustion air intake port 12 and the second combustion air intake port 13 is more uniform.
In addition, as shown in fig. 11, in a schematic view in which a plurality of structures of the present embodiment 2 are simultaneously installed in a furnace of a gas fireplace, an inlet of a combustion air inlet channel 4 is communicated with the outside of the bottom of the furnace, and an auxiliary combustion air inlet 6 is further provided on a bottom plate of the gas fireplace on which the combustion apparatus of the present embodiment 2 is installed, as a supplement to the whole combustion air inlet when the gas fireplace is in operation.
Example 3
The combustion air slots 21 are a plurality of irregularly arranged small holes as shown in fig. 12.
Example 4
As shown in fig. 13 to 14, the simulated solid fuel 2 is formed by three pieces of the simulated solid fuel 2 being spliced, the combustion air notch 21 is a gap formed between the three pieces of the simulated solid fuel 2 after being spliced, the burner 1 is a whole and is arranged below the simulated solid fuel 2, the third combustion air inlet 12 is formed in the middle of the burner 1, and the two combustion air inlet channels 4 are arranged in parallel with the fuel inlet 14.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (7)
1. A gas fireplace combustion device, characterized in that: the intelligent combustion control system comprises a combustor (1) and simulated solid fuel (2), wherein the combustor (1) is arranged below the simulated solid fuel (2), fire outlets (11) on the combustor (1) face at least one side of the periphery of the simulated solid fuel (2) respectively, and an independent combustion air inlet channel (4) is arranged below the combustor (1);
a notch is formed in the middle of the combustor (1) to form a third combustion air inlet (12), the combustion air inlet channel (4) is communicated with the third combustion air inlet (12), a combustion air notch (21) is formed in the simulated solid fuel (2), and the combustion air notch (21) is directly communicated with the third combustion air inlet (12);
The burner is characterized in that a fuel air inlet (14) is formed in the burner (1), the fuel air inlet (14) is connected with a nozzle (5), a fuel ejection port (51) is formed in the nozzle (5), and a first combustion air inlet (15) is formed in the fuel air inlet (14);
A layer of partition plate (3) is arranged below the burner (1), a second combustion air inlet (13) leading to the fire outlet hole (11) is formed between the partition plate (3) and the lower surface of the burner (1), and the second combustion air inlet (13) is communicated with the combustion air inlet channel (4).
2. A gas fireplace combustion device as claimed in claim 1, wherein: the combustion air notch (21) is an irregular strip notch, or is a single or a plurality of small holes, or is a combination of the irregular strip notch and the small holes.
3. A gas fireplace combustion device as claimed in claim 1, wherein: the combustion air notch (21) is one or two or more irregular strip notches.
4. A gas fireplace combustion device as claimed in claim 1, wherein: the simulation solid fuel (2) is formed by splicing two or more than two blocks.
5. A gas fireplace burner as defined in claim 4, wherein: a gap or clearance is arranged between two or more than two simulated solid fuels (2), and the combustion air notch (21) is formed by the gap or clearance.
6. A gas fireplace combustion device as claimed in claim 1, 3 or 5, wherein: the average width of the combustion air notch (21) is 1 mm-25 mm.
7. A gas fireplace combustion device as claimed in claim 1, wherein: the third combustion air inlet (12) is a groove-shaped opening, and the average width of the groove-shaped opening is 2-30 mm.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910407368.2A CN110986148B (en) | 2019-05-15 | Combustion device of gas fireplace | |
| EP19193093.2A EP3739266B1 (en) | 2019-05-15 | 2019-08-22 | Gas fireplace combustion device structure |
| US16/556,966 US11209170B2 (en) | 2019-05-15 | 2019-08-30 | Gas fireplace combustion device structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910407368.2A CN110986148B (en) | 2019-05-15 | Combustion device of gas fireplace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110986148A CN110986148A (en) | 2020-04-10 |
| CN110986148B true CN110986148B (en) | 2024-06-21 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210320277U (en) * | 2019-05-15 | 2020-04-14 | 宁波丽辰电器有限公司 | Combustion device of gas fireplace |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210320277U (en) * | 2019-05-15 | 2020-04-14 | 宁波丽辰电器有限公司 | Combustion device of gas fireplace |
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