CN220828853U - Furnace end and combustor - Google Patents
Furnace end and combustor Download PDFInfo
- Publication number
- CN220828853U CN220828853U CN202322374426.0U CN202322374426U CN220828853U CN 220828853 U CN220828853 U CN 220828853U CN 202322374426 U CN202322374426 U CN 202322374426U CN 220828853 U CN220828853 U CN 220828853U
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- CN
- China
- Prior art keywords
- air
- gas
- burner
- flow channel
- communicated
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 14
- 230000007423 decrease Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 87
- 239000002737 fuel gas Substances 0.000 abstract description 13
- 238000002309 gasification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000010411 cooking Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model relates to the field of burners, and particularly discloses a furnace end and a burner. The burner comprises a shell and a combustion assembly, wherein an air distribution cavity is arranged in the shell; the auxiliary air distribution unit comprises a main body; an air flow channel is arranged in the main body, and the air inlet end of the air flow channel is used for being communicated with a high-pressure air source; the air flow channel comprises an air inlet section and an air outlet section, the sectional area of the air inlet section gradually decreases from the air inlet end to the air outlet end, and the sectional area of the air outlet section gradually increases from the air inlet end to the air outlet end; the main body is provided with a gas channel, and the gas outlet end of the gas channel is communicated with the gas outlet section of the gas flow channel; the gas outlet direction of the gas channel is inclined towards the gas outlet end of the gas channel. The burner can further reduce the air pressure by increasing the air flow rate in the air flow channel, ensure that the fuel gas smoothly enters the air distribution cavity and improve the combustion stability.
Description
Technical Field
The utility model relates to the field of combustors, in particular to a furnace end and a combustor.
Background
A gas cooker is a common device used in cooking, and generally refers to a kitchen appliance which uses liquefied petroleum gas, artificial gas, natural gas and other gas fuels to heat directly. The burner is a core part of the gas stove, is used for guiding and controlling the stable output of the gas and supporting the safe and reliable combustion of the gas.
The Chinese patent application with the application publication number of CN 107255273A discloses an energy-saving and high-efficiency furnace end, which comprises a base and a fire cover, wherein a mixing chamber is arranged in the base, a gas inlet hole and an air inlet hole are arranged on the base, a fan is arranged below the base, the fan pressurizes air and then is introduced into the mixing chamber, and enough air can be introduced into the mixing chamber to support combustion, so that high heat efficiency is realized.
However, after the fan is pressurized, the air pressure is larger when the air enters the mixing chamber, the pressure difference between the air pressure in the mixing chamber and the fuel gas is smaller, even the condition that the internal pressure of the mixing chamber is larger than the fuel gas pressure exists, the fuel gas is not smoothly entered, and even the mixed gas can flow back from the fuel gas inlet hole.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide the furnace end and the burner, which can increase the air flow velocity in the air flow channel, further reduce the air pressure, ensure that the fuel gas smoothly enters the air distribution cavity and improve the combustion stability.
In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the burner comprises a shell and a combustion assembly, wherein an air distribution cavity is arranged in the shell, the upper end of the air distribution cavity is opened, and the combustion assembly is positioned at the opening of the air distribution cavity;
The method is characterized in that: the auxiliary air distribution unit comprises a main body; an air flow channel is arranged in the main body, the air inlet end of the air flow channel is communicated with a high-pressure air source, and the air outlet end of the air flow channel is communicated with the air distribution cavity;
The air flow channel comprises an air inlet section and an air outlet section, the sectional area of the air inlet section gradually decreases from the air inlet end to the air outlet end, and the sectional area of the air outlet section gradually increases from the air inlet end to the air outlet end;
The main body is provided with a gas channel, the gas outlet end of the gas channel is communicated with the gas outlet section of the gas flow channel, and the gas inlet end is used for communicating a gas source;
The gas outlet direction of the gas channel is inclined towards the gas outlet end of the gas channel.
Combustion-supporting air enters the air flow channel, the flow velocity of the air is increased after entering the air outlet section due to the change of the sectional areas of the air inlet section and the air outlet section in the air flow channel, meanwhile, the air pressure is reduced, and fuel gas can smoothly enter the air outlet section of the air flow channel from the fuel gas channel, so that the condition that the fuel gas is blocked from entering and even the mixed gas flows back is avoided. The gas outlet direction of the gas channel is inclined towards the gas outlet end of the gas channel, namely, the gas inlet direction of the gas is basically consistent with the reverse direction of the gas flow in the gas channel, and the gas can enter more smoothly.
In addition, existing burners often suffer from insufficient gasification of the gas, which is detrimental to adequate mixing of the gas with air. By adopting the auxiliary gas distribution unit, the gas is fully gasified due to the fact that the air flow speed of the gas outlet section is large and the pressure is small, meanwhile, the gas is fully disturbed under the drive of high-speed air flow, the mixing speed of the gas and the air can be accelerated, the gasification degree of the gas can be improved, and further the gas is fully combusted, and the thermal efficiency is improved.
Preferably, the auxiliary air distribution unit is detachably connected with the shell. The auxiliary gas distribution unit can be added in the form of an additional fitting to the same type of burner, even if the burner is not added, it can be realized with limited modification.
Preferably, the auxiliary air distribution unit is integrally arranged with the housing.
Preferably, the auxiliary air distribution unit is arranged in the air distribution cavity; the shell is provided with a gas inlet and an air inlet, the gas inlet is communicated with a gas source, and the air inlet is communicated with a high-pressure air source; the air inlet end of the air flow channel is communicated with the air inlet, and the air outlet end of the air flow channel is communicated with the air distribution cavity.
Preferably, the main body is fan-shaped along the extending direction of the airflow passage.
Preferably, the shell comprises a bottom plate, an outer side plate and an inner side plate, wherein the outer side plate and the inner side plate are perpendicular to the bottom plate and are respectively in annular arrangement, and the outer side plate is sleeved outside the inner side plate; the air distribution cavity comprises a main air distribution cavity arranged between the outer side plate and the inner side plate and an auxiliary air distribution cavity arranged in the inner side plate; the auxiliary gas distribution unit is positioned in the main gas distribution cavity;
The combustion assembly comprises an outgoing fire unit and a core part fire outlet unit, wherein the outgoing fire unit corresponds to the main gas distribution cavity, and the core part fire outlet unit corresponds to the auxiliary gas distribution cavity.
Preferably, the shell is provided with a mixed gas inlet communicated with the gas distribution cavity; the auxiliary gas distribution unit is arranged outside the shell, and the gas outlet end of the gas flow channel is communicated with the mixed gas inlet.
A burner comprises a burner and a gas transmission assembly, wherein the burner is the burner, and the gas transmission assembly is communicated with an air inlet of a shell.
Preferably, the air delivery assembly comprises an air pressurization unit and an air delivery pipeline, and the air delivery pipeline is communicated with the air pressurization unit and the air inlet.
Drawings
FIG. 1 is a schematic view of a burner according to a first embodiment of the present utility model;
FIG. 2 is a schematic view showing the configuration of the first embodiment of the burner according to the present utility model in which the housing cooperates with the auxiliary air distribution unit;
FIG. 3 is an exploded view of the housing of the burner in combination with an auxiliary air distribution unit according to the first embodiment of the present utility model;
FIG. 4 is a schematic view of an auxiliary air distribution unit in a burner according to a first embodiment of the present utility model;
FIG. 5 is a cross-sectional view of an auxiliary gas distribution unit in a burner of a first embodiment of the present utility model;
fig. 6 is a schematic structural view of a burner according to a second embodiment of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
As shown in FIG. 1, the burner comprises a shell 11 and a combustion assembly 12, wherein an air distribution cavity is arranged in the shell 11, the upper end of the air distribution cavity is opened, and the combustion assembly 12 is positioned at the opening of the air distribution cavity. The shell 11 is provided with a fuel gas inlet 114 and an air inlet 113.
Specifically, the housing 11 includes a bottom plate, an outer side plate 112 and an inner side plate 111, where the outer side plate 112 and the inner side plate 111 are perpendicular to the bottom plate and are respectively in a ring shape, and the outer side plate 112 is sleeved outside the inner side plate 111. The air distribution cavity comprises a main air distribution cavity arranged between the outer side plate 112 and the inner side plate 111, and an auxiliary air distribution cavity arranged in the inner side plate 111. The combustion assembly 12 includes an outgoing fire unit corresponding to the primary air distribution chamber and a core outgoing fire unit corresponding to the secondary air distribution chamber.
And the auxiliary air distribution unit 13 is further included, and the auxiliary air distribution unit 13 comprises a main body. An air flow channel 131 is arranged in the main body, an air inlet 113 at the air inlet end of the air flow channel 131 is communicated, and the air outlet end is communicated with the air distribution cavity. The main body is fan-shaped along the extension direction of the air flow channel 131.
The air flow channel 131 comprises an air inlet section 1311 and an air outlet section 1312, wherein the sectional area of the air inlet section 1311 gradually decreases from the air inlet end to the air outlet end, and the sectional area of the air outlet section 1312 gradually increases from the air inlet end to the air outlet end. The main body is provided with a gas channel 132, and the gas channel 132 is communicated with the gas inlet 114 and the gas outlet section 1312 of the gas flow channel 131. Specifically, the gas outlet direction of the gas channel 132 is inclined toward the gas outlet end of the gas channel 131.
The auxiliary air distribution unit 13 can play a role in throttling expansion due to the change of the sectional areas of the air inlet section 1311 and the air outlet section 1312 in the air flow channel 131. Combustion-supporting air enters the air flow channel 131 from the air inlet 113, the flow speed of the air is increased after the air enters the air outlet section 1312, meanwhile, the air pressure is reduced, and fuel gas can smoothly enter the air outlet section 1312 of the air flow channel 131 from the fuel gas channel 132 and jointly enter the air distribution cavity, so that the condition that the fuel gas is prevented from entering and even the mixed gas flows back is avoided.
In addition, there may be cases where the gas is partially insufficiently gasified when entering from the gas inlet 114, in the form of fine droplets, which is disadvantageous for adequate mixing of the gas with air. By adopting the auxiliary gas distribution unit 13, the air flow rate of the gas outlet section 1312 is larger, the pressure is smaller, so that the gas can be more favorable for full gasification, meanwhile, the gas is fully disturbed under the drive of high-speed air flow, the mixing speed of the gas and the air can be accelerated, the gasification degree of the gas can be improved, the gas can be further ensured to be fully combusted, and the thermal efficiency is improved.
Further, the auxiliary air distribution unit 13 is arranged in the air distribution cavity. In particular, the auxiliary air distribution unit 13 may be provided in a detachable connection with the housing 11, and the auxiliary air distribution unit 13 may be added in the form of an additional fitting to the same type of burner, even if the burner is not added, with limited modification. Specifically, the auxiliary air distribution unit 13 is located in the main air distribution cavity. The auxiliary air distribution unit 13 may be provided integrally with the housing 11, for example, by being integrally connected by welding or the like.
Example two
As shown in fig. 6, the present embodiment is different from the first embodiment in that: the shell 11 is provided with a mixed gas inlet 14 communicated with the gas distribution cavity. The auxiliary air distribution unit 13 is arranged outside the shell 11, and the air outlet end 131 of the air flow channel is communicated with the mixed air inlet 14. Can be suitable for different kinds of burners.
A burner comprises a burner 1 and a gas transmission assembly 2, wherein the burner 1 is the burner, and the gas transmission assembly 2 is communicated with an air inlet 113 of a shell 11. Specifically, the air delivery assembly 2 comprises an air pressurization unit and an air delivery pipeline, and the air delivery pipeline is communicated with the air pressurization unit and the air inlet.
In summary, the foregoing description is only of the preferred embodiments of the utility model, and is not intended to limit the utility model to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (9)
1. The burner comprises a shell and a combustion assembly, wherein an air distribution cavity is arranged in the shell, the upper end of the air distribution cavity is opened, and the combustion assembly is positioned at the opening of the air distribution cavity;
The method is characterized in that: the auxiliary air distribution unit comprises a main body; an air flow channel is arranged in the main body, the air inlet end of the air flow channel is communicated with a high-pressure air source, and the air outlet end of the air flow channel is communicated with the air distribution cavity;
The air flow channel comprises an air inlet section and an air outlet section, the sectional area of the air inlet section gradually decreases from the air inlet end to the air outlet end, and the sectional area of the air outlet section gradually increases from the air inlet end to the air outlet end;
The main body is provided with a gas channel, the gas outlet end of the gas channel is communicated with the gas outlet section of the gas flow channel, and the gas inlet end is used for communicating a gas source;
The gas outlet direction of the gas channel is inclined towards the gas outlet end of the gas channel.
2. The burner of claim 1, wherein: the auxiliary air distribution unit is detachably connected with the shell.
3. The burner of claim 1, wherein: the auxiliary air distribution unit is integrally arranged with the shell.
4. A burner as claimed in any one of claims 1 to 3, wherein: the auxiliary air distribution unit is arranged in the air distribution cavity;
The shell is provided with a gas inlet and an air inlet, the gas inlet is communicated with a gas source, and the air inlet is communicated with a high-pressure air source; the air inlet end of the air flow channel is communicated with the air inlet, and the air outlet end of the air flow channel is communicated with the air distribution cavity.
5. The burner of claim 4, wherein: the main body is arranged in a fan shape along the extending direction of the airflow channel.
6. The burner of claim 4, wherein: the shell comprises a bottom plate, an outer side plate and an inner side plate, wherein the outer side plate and the inner side plate are perpendicular to the bottom plate and are respectively in annular arrangement, and the outer side plate is sleeved outside the inner side plate; the air distribution cavity comprises a main air distribution cavity arranged between the outer side plate and the inner side plate and an auxiliary air distribution cavity arranged in the inner side plate; the auxiliary gas distribution unit is positioned in the main gas distribution cavity;
The combustion assembly comprises an outgoing fire unit and a core part fire outlet unit, wherein the outgoing fire unit corresponds to the main gas distribution cavity, and the core part fire outlet unit corresponds to the auxiliary gas distribution cavity.
7. A burner as claimed in any one of claims 1 to 3, wherein: the shell is provided with a mixed gas inlet communicated with the gas distribution cavity; the auxiliary gas distribution unit is arranged outside the shell, and the gas outlet end of the gas flow channel is communicated with the mixed gas inlet.
8. A burner comprising a burner and a gas delivery assembly, characterized in that: the burner is as claimed in any one of claims 1 to 7, and the gas delivery assembly is in communication with the gas inlet end of the gas flow channel.
9. The burner of claim 8, wherein: the gas transmission assembly comprises an air pressurization unit and a gas transmission pipeline, and the gas transmission pipeline is communicated with the air pressurization unit and the air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322374426.0U CN220828853U (en) | 2023-09-01 | 2023-09-01 | Furnace end and combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322374426.0U CN220828853U (en) | 2023-09-01 | 2023-09-01 | Furnace end and combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220828853U true CN220828853U (en) | 2024-04-23 |
Family
ID=90724460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322374426.0U Active CN220828853U (en) | 2023-09-01 | 2023-09-01 | Furnace end and combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220828853U (en) |
-
2023
- 2023-09-01 CN CN202322374426.0U patent/CN220828853U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |