CN202993207U - Outer fire cover of burner - Google Patents
Outer fire cover of burner Download PDFInfo
- Publication number
- CN202993207U CN202993207U CN 201220557528 CN201220557528U CN202993207U CN 202993207 U CN202993207 U CN 202993207U CN 201220557528 CN201220557528 CN 201220557528 CN 201220557528 U CN201220557528 U CN 201220557528U CN 202993207 U CN202993207 U CN 202993207U
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- CN
- China
- Prior art keywords
- fire cover
- passage
- outer fire
- cover body
- steady flame
- 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.)
- Withdrawn - After Issue
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Abstract
An outer fire of a burner comprises an outer fire cover body provided with a plurality of main fire channels. A gas mixing chamber is arranged on the lower end face of the outer fire cover body and communicated with the main fire channels, and the main fire channels are provided with main fire holes formed on at least one of the outer side face and the inner side face of the outer fire cover body. The outer fire cover of the burner is characterized in that the outer fire cover body is provided with a circular flame stabilizing channel located above or below the main fire channels and surrounding the peripheral direction, the outer end of the flame stabilizing channel is provided with a flame stabilizing ring formed on the outer side face or the inner side face of the outer fire cover body, and the inner end of the flame stabilizing channel is communicated with the gas mixing chamber. Compared with the prior art, the outer fire cover of the burner has the advantage that due to the fact that the flame stabilizing channel is arranged on the lower edges of the main fire holes, flame of the main fire holes can be pulled well in a burning process, and the flame burns stably.
Description
Technical field
The utility model relates to a kind of outer fire cover of burner, belongs to the combustion apparatus technical field.
Background technology
Common Domestic combustor generally has outer fire cover and inner fire cover, with the retention flame.Existing burner outer fire cover structure generally comprises the outer fire cover body with a plurality of main fiery passages, and outer fire cover body lower surface has mixing chamber, this mixing chamber and main fiery channel connection, and main fiery passage forms main fire hole in outer fire cover body outer face.The patent documentation of this class can referenced patent number be Chinese utility model patent " a kind of conic-fire cover for gas-range burner " (Granted publication number: CN2842216Y), can also referenced patent number be the Chinese utility model patent " a kind of burner fire lid " (Granted publication number be CN202149492U) of ZL201120246965.0 of ZL200520014838.2.The main fire hole combustion system of above-mentioned disclosed this list exists the rear flame of burning easily to beat, the unsettled deficiency in combustion zone.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of combustion stablized burner outer fire cover for the above-mentioned state of the art.
the utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of burner outer fire cover, comprise the outer fire cover body with a plurality of main fiery passages, this outer fire cover body lower surface has mixing chamber, this mixing chamber and main fiery channel connection, aforesaid main fiery passage is formed with one of at least main fire hole in outer fire cover body lateral surface and medial surface, it is characterized in that described outer fire cover body is positioned at the steady flame passage that is formed with an annular above or below main fiery passage around circumferencial direction, this steady flame passage outer end forms a flame stabilization ring in outer fire cover body outer face, and the inner end of steady flame passage is communicated with mixing chamber.
As preferably, described main fiery passage is parallel with the length direction of steady flame channel cross-section.
As preferably, described steady flame channel cross-section length direction is horizontal by 0 ~ 60 ° of angle.
As preferably, the upper edge of described flame stabilization ring and main fiery passage lower along the base at a distance of 0.5mm ~ 2mm, or the lower edge of described flame stabilization ring and main fiery passage upper along the base at a distance of 0.5mm ~ 2mm.Flame stabilization ring is difficult for too far or too from the distance of main fire hole, and steady fireworks too far away can't burn main fiery root, can't effectively play steady flame effect, too near easily make flame stabilization ring and main fire hole flame adhesion auxiliary air replenish bad cause burn insufficient.
As preferably, the cross-sectional width of described steady flame passage is 0.8mm ~ 2mm.
Described steady flame passage inner end also is connected with the inlet channel of a plurality of independences and vertical level, and inlet channel is communicated with mixing chamber.Combustion gas has a process of clashing into from inlet channel to steady flame channel slot, can effectively reduce air velocity, thereby being beneficial to combustion gas is evenly distributed in whole steady flame passage, can guarantee follow-up flameholding, in addition, steady flame passage communicates with the aperture of a plurality of connection fire cover inner chambers, and aperture has certain angle (less than 180 °) to make air-flow form the shock deceleration at this place with steady flame passage junction.
The degree of depth of described steady flame passage is preferably 3mm ~ 9mm.The best is 6mm ~ 7mm.Steady flame passage has enough degree of depth and obtained the diffusion of slowing down with the assurance combustion gas before flame stabilization ring place's burning, guarantees that further combustion gas and air mix and the energy sufficient combustion, is unlikely to flame combustion and interrupts.
Compared with prior art, the utility model has the advantage of: due to lower edge or time edge of steady flame passage at main fire hole, " control " effect to the flame of main fire hole after steady fireworks flame burning has reached ultimate attainment, live the flame of main fire hole with regard to energy sufficient " drawing " in combustion process, make its continual and steady burning, improve the thermal efficiency, effectively avoid combustion gas imperfect combustion two to bring the generation of waste and contingency.
Description of drawings
Fig. 1 is embodiment 1 structural representation.
Fig. 2 is the three-dimensional sectional structure schematic diagram of embodiment 1.
Fig. 3 is embodiment 1 cross section sectional structure schematic diagram.
Fig. 4 uses state reference map after embodiment 1 amplifies.
Fig. 5 is embodiment 2 cross section sectional structure schematic diagrames.
The specific embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
Embodiment 1, as shown in Figure 1, Figure 2, Figure 3 and Figure 4, the burner outer fire cover comprises the outer fire cover body 1 with a plurality of main fiery passages 11, this outer fire cover body 1 lower surface has mixing chamber 2, this mixing chamber 2 is communicated with main fiery passage 11, main fiery passage 11 forms main fire hole 12 in outer fire cover body outer face, outer fire cover body 1 is positioned at main fiery passage 11 belows and is formed with the steady flame passage 13 of an annular around circumferencial direction, this steady flame passage 1 outer end forms a flame stabilization ring 14 at outer fire cover body lateral surface, and the inner end is communicated with mixing chamber 2.Further, surely flame passage 13 inner ends are connected with the inlet channel 15 of a plurality of independences and vertical level, and inlet channel 15 is communicated with mixing chamber 2.
Particularly, main fiery passage 2 is parallel with the length direction in steady flame passage 13 cross sections.The angle [alpha] of steady flame passage 13 cross-sectional length directions and horizontal plane is 0 ~ 60 °.The upper edge of flame stabilization ring 14 is 0.5mm ~ 2mm along the base at a distance of M with the lower of steady flame passage 13.The cross-sectional width N of steady flame passage 13 is 0.8mm ~ 2mm.The degree of depth of steady flame passage 13L is 3mm ~ 9mm, and the best is 6mm ~ 7mm
Combustion gas is impacted (or shock) vertically upward to steady flame passage 13 after mixing chamber 2 process inlet channels 15, flow velocity decline can be evenly distributed in whole steady flame passage 13 in impact process, flame by the process of a flame in combustion gas in the steady flame passage 13 of whole circle also lighted, because steady flame passage 13 is lived the flame of main fire hole 12 on the lower edge of main fire hole 12 with regard to energy good " drawing " in combustion process, make its smooth combustion.
Steady flame passage 1 outer end in the present embodiment can be also to form flame stabilization ring 14 at outer fire cover body medial surface, no longer continues here to launch.
Embodiment 2, and as shown in Figure 5, outer fire cover body 1 is positioned at main fiery passage 11 tops and is formed with the steady flame passage 13 of an annular around circumferencial direction, and main fiery passage 11 is an acute angles beta with the length direction in steady flame passage 13 cross sections, and β is 30 °.Other structure reference examples 1.
Claims (8)
1. burner outer fire cover, comprise the outer fire cover body (1) with a plurality of main fiery passages (11), this outer fire cover body lower surface has mixing chamber (2), this mixing chamber (2) is communicated with main fiery passage (11), aforesaid main fiery passage (11) is formed with one of at least main fire hole (12) in outer fire cover body lateral surface and medial surface, it is characterized in that described outer fire cover body (1) is positioned at the steady flame passage (13) that is formed with an annular above or below main fiery passage (11) around circumferencial direction, this steady flame passage (13) outer end forms a flame stabilization ring (14) in outer fire cover body outer face, and the inner end of steady flame passage (13) is communicated with mixing chamber (2).
2. burner outer fire cover according to claim 1 is characterized in that described main fiery passage (2) and the length direction in steady flame passage (13) cross section are 0～30 °.
3. burner outer fire cover according to claim 2, is characterized in that described steady flame passage (13) cross-sectional length direction is horizontal by 0～60 ° of angle.
4. burner outer fire cover according to claim 3, the upper edge that it is characterized in that described flame stabilization ring (14) and main fiery passage (2) lower along the base at a distance of 0.5mm～2mm, or the lower edge of described flame stabilization ring (14) and main fiery passage (2) upper along the base at a distance of 0.5mm～2mm.
5. burner outer fire cover according to claim 4, the width that it is characterized in that described steady flame passage (13) is 0.8mm～2mm.
6. the described burner outer fire cover of arbitrary claim according to claim 1～5, it is characterized in that described steady flame passage (13) inner end also is connected with the inlet channel (15) of a plurality of independences and vertical level, this inlet channel (15) is communicated with mixing chamber (2).
7. burner outer fire cover according to claim 6, the degree of depth that it is characterized in that described steady flame passage (13) is 3mm～9mm.
8. burner outer fire cover according to claim 7, the degree of depth that it is characterized in that described steady flame passage (13) is 6mm～7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220557528 CN202993207U (en) | 2012-10-29 | 2012-10-29 | Outer fire cover of burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220557528 CN202993207U (en) | 2012-10-29 | 2012-10-29 | Outer fire cover of burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202993207U true CN202993207U (en) | 2013-06-12 |
Family
ID=48564384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220557528 Withdrawn - After Issue CN202993207U (en) | 2012-10-29 | 2012-10-29 | Outer fire cover of burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202993207U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913911A (en) * | 2012-10-29 | 2013-02-06 | 宁波方太厨具有限公司 | Outer burner cap of burner |
| CN104930516A (en) * | 2015-06-24 | 2015-09-23 | 宁波方太厨具有限公司 | Combustor fire cover |
-
2012
- 2012-10-29 CN CN 201220557528 patent/CN202993207U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913911A (en) * | 2012-10-29 | 2013-02-06 | 宁波方太厨具有限公司 | Outer burner cap of burner |
| CN102913911B (en) * | 2012-10-29 | 2016-01-13 | 宁波方太厨具有限公司 | Burner outer flame cover |
| CN104930516A (en) * | 2015-06-24 | 2015-09-23 | 宁波方太厨具有限公司 | Combustor fire cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130612 Effective date of abandoning: 20160113 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |