CN111256122A - Fire cover for gas stove - Google Patents
Fire cover for gas stove Download PDFInfo
- Publication number
- CN111256122A CN111256122A CN201811457041.8A CN201811457041A CN111256122A CN 111256122 A CN111256122 A CN 111256122A CN 201811457041 A CN201811457041 A CN 201811457041A CN 111256122 A CN111256122 A CN 111256122A
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- CN
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- Prior art keywords
- fire
- hole
- gas
- ignition
- groove
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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
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
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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
- F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
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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
- 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
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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
- F23D14/62—Mixing devices; Mixing tubes
- F23D14/64—Mixing devices; Mixing tubes with injectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
The invention relates to a fire cover for a gas stove, which comprises a fire cover body, wherein the fire cover body is provided with a gas mixing cavity, the upper surface of the fire cover body is provided with a fire transmission chamber, and the top wall of the fire transmission chamber is provided with a fire leading groove, and the fire cover is characterized in that: compared with the prior art, the invention has the advantages that at least one through hole communicated with the gas mixing cavity is formed in the part of the ignition groove except the top opening communicated with the outside, and the central line of each through hole is intersected with the convex edge, so that the gas flowing out from each through hole can be relatively flushed with the convex edge, thereby improving the mixing uniformity of the gas and the air in the ignition groove.
Description
Technical Field
The invention relates to a burner of a gas cooker, in particular to a fire cover for a gas cooker.
Background
At present, most of traditional burner fire covers sold in the market are milled through a groove, namely a fire ignition groove is milled through the top of the fire cover body, and the burner fire cover is easy to deform due to the fact that the fire cover body is disconnected at the fire ignition groove, so that the fire ignition effect is influenced. For example, a similar fire transfer structure is disclosed in the chinese patent invention "gas furnace head with fire transfer device and flameout protection function" with patent No. 201220464214.0 (publication No. CN202813375U), wherein an outer ring fire spraying ring is provided with a plurality of outer ring fire spraying holes, and an outer ring fire transfer device is further provided on the outer ring fire spraying right, the outer ring fire transfer device is composed of a boss installed on the inner side wall of the outer ring fire spraying ring, an outer ring fire transfer hole and an outer ring fire transfer groove provided on the boss and the outer ring fire spraying ring, the outer ring fire transfer hole is communicated with the outer ring fire transfer groove, the outer ring fire transfer hole and the outer ring fire transfer groove are communicated with one outer ring fire spraying hole, so as to realize rapid fire transfer; the fire transfer groove of the fire transfer structure is open, the fire transfer groove is linear, namely the fire transfer groove is exposed on the surface of the outer ring fire cover, the design of the design has a benefit that the secondary air in the fire transfer groove is sufficiently supplemented, the open fire transfer groove can ensure the supplement of the secondary air during the flame combustion in the fire transfer groove, the flame combustion and the fire transfer are facilitated, and the open fire transfer groove has the characteristic of quick fire transfer, but has two disadvantages, the first open fire transfer groove and the open fire transfer groove are easy to cause the blockage of the fire transfer groove, namely soup flowing from the bottom of a pan is easy to flow into the fire transfer groove, the fire transfer performance is influenced after the blockage, and the main reason for the blockage maintenance of the current fire transfer groove is also included; secondly, the open fire transmission groove has high requirements on the air door of the stove, and after the air door is opened to a large extent, too much air can cause too high air speed, so that flame is separated or flame is released during combustion. For this reason, further improvements in the fire transfer slots of burner fire covers are desired.
Disclosure of Invention
The invention aims to solve the first technical problem of providing a fire cover for a gas stove, which can improve the flame stabilization of a fire leading part.
The second technical problem to be solved by the invention is to provide the fire cover for the gas stove, which can improve the fire transfer efficiency of the ignition part.
The technical scheme adopted by the invention for solving the technical problems is as follows: this a fire lid for gas-cooker, including the fire lid body, the cyclic annular roof of this fire lid body and the interior rampart, the outer rampart that extend downwards that incline or incline are vertical from the inboard edge of this cyclic annular roof, the outside edge of this fire lid body are formed with the gas mixing chamber, and the upper surface of fire lid body is formed with the fire transmission room from the radial outside extension of center towards the fire lid body of interior rampart to outer rampart, fire introduction groove has been seted up on the roof of fire transmission room, its characterized in that: at least one of the two inner side walls of the top opening of the ignition groove is provided with a convex rib which protrudes towards the other side wall and extends along the radial direction, and the other parts of the ignition groove except the top opening are provided with at least one through hole which is communicated with the gas mixing cavity and has an opening facing the convex rib.
Furthermore, the through holes are two, namely a first through hole and a second through hole which are respectively arranged on two sides of the top opening, the central lines of the first through hole and the second through hole are intersected to form an included angle α, and the central lines of the first through hole and the second through hole form an included angle α, so that the gas phase flowing out of the first through hole and the second through hole is in opposite impact, the mixing uniformity of the gas and the air in the ignition groove is improved, the flow rate is reduced, and the flame stabilizing performance is improved.
In order to further slow down the gas flowing out of the first through hole and/or the second through hole, the first through hole and the second through hole are arranged in a staggered mode, a boss which is relatively isolated from the ignition groove is arranged in the center of the ignition groove, a gap is formed between the bottom of the boss and the ignition groove, and the first through hole and/or the second through hole penetrate through the boss. The gas that does not flow out with the first through-hole or the second through-hole that the boss link up then flows through the interval between boss and the ignition groove to effectively reduce the gas speed that first through-hole or second through-hole flow out.
Furthermore, the top end of the boss is provided with a flow guide inclined plane connected with the convex rib, and the flow guide inclined plane gradually inclines upwards from bottom to top. In order to ensure that the fuel gas flowing out through the first through hole or the second through hole which is communicated with the boss is uniformly distributed along the ignition groove from inside to outside.
Furthermore, the ignition groove is provided with an inner side opening facing the center of the fire cover body, and the fire transfer chamber is provided with an air outlet communicated with the air mixing chamber under the inner side opening. The air outlet hole can supplement air to the inner side of the ignition groove so as to avoid unsmooth fire transfer caused by insufficient air at the starting position of the ignition groove.
Preferably, the air outlet is inclined inwards and gradually approaches the inner side port from the air inlet end communicated with the air mixing chamber to the air outlet end communicated with the fire transfer chamber.
Furthermore, the ignition groove is provided with an outer side opening positioned on the outer ring wall, an air inlet communicated with the air mixing cavity is formed in the bottom of the ignition groove, which is close to the outer side opening of the ignition groove, and the center line of the air inlet is perpendicular to or intersected with the convex rib. Go into the outside mouth that the gas pocket is close to the ignition groove, correspond with the inboard mouth that the venthole is located the ignition groove for the gas is from inboard mouthful to outside mouthful evenly distributed, should go into the gas pocket simultaneously still perpendicular or crossing mutually with protruding muscle, in order to increase from going into the gas that the gas pocket flows and protruding muscle to dashing relatively, thereby go into the gas pocket in the gas of protruding muscle and the mixing homogeneity of air, reduced the velocity of flow simultaneously again.
In order to more rapidly transfer fire from the inner port to the outer port of the fire chute, the ribs are progressively outward and adjacent the outer port from the inner port to the outer port.
Furthermore, the outer ring wall is provided with at least two fire outlets communicated with the gas mixing cavity along the circumferential direction.
In order to stabilize the flame and fire outlet, at least two flame stabilizing holes communicated with the gas mixing cavity are formed in the outer ring wall below the fire outlet along the circumferential direction.
In order to stabilize the pressure and the flame holes, grooves which are intersected with the flame stabilizing holes and the flame holes are formed in the outer ring wall below the flame holes along the circumferential direction.
Compared with the prior art, the invention has the advantages that at least one through hole communicated with the gas mixing cavity is arranged in the ignition groove except for the top opening communicated with the outside, the central line of each through hole is intersected with the convex rib, so that the gas flowing out from each through hole can be opposite to the convex rib, the mixing uniformity of the gas and the air in the ignition groove is improved, the flow rate is reduced, and the flame stabilizing performance is improved.
Drawings
FIG. 1 is a schematic view of the structure of a burner fire cover in embodiment 1 of the invention;
FIG. 2 is a schematic view of the structure of the bottom of the burner cap in embodiment 1 of the present invention;
FIG. 3 is a partial cross-sectional view of the burner fire cover of FIG. 1;
FIG. 4 is an angled cross-sectional view of the burner fire cover of FIG. 1;
FIG. 5 is a schematic view of another angle of the burner fire cover of FIG. 1;
fig. 6 is a sectional view of a burner fire cover in embodiment 2 of this invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Example 1
As shown in FIGS. 1 to 5, the preferred embodiment of the present invention is shown. The fire cover for the gas stove in the embodiment comprises a fire cover body 1, wherein an annular top wall 10 of the fire cover body 1, an inner ring wall 11 and an outer ring wall 12 which vertically or obliquely extend downwards from the inner edge and the outer edge of the annular top wall 10, and form a gas mixing cavity 13, a fire transfer chamber 2 is formed on the upper surface of the fire cover body 1 and radially extends outwards from the inner ring wall 11 to the outer ring wall 12 towards the center of the fire cover body 1, a fire ignition groove 21 is formed on the top wall of the fire transfer chamber 2, at least one of two opposite inner side walls of the top opening of the fire ignition groove 21 is provided with a convex rib 211 which protrudes towards the other side wall and radially extends, at least one through hole communicated with the gas mixing cavity 13 is formed in the other part of the fire ignition groove 21 except the top opening, and the opening of each through hole faces the convex rib 211. At least one through hole communicated with the gas mixing cavity 13 is formed in the ignition groove 21 except other parts of the top opening communicated with the outside, the opening of each through hole faces the convex rib 211, so that the gas flowing out of each through hole can be opposite to the convex rib 211, the mixing uniformity of the gas and the air in the ignition groove 21 is improved, the flow rate is reduced, the flame stabilizing performance is improved, the problem that the ignition groove 21 is open communicated with the outside, the phenomenon of flame transfer blocking caused by too fast gas speed is easily caused is solved, a good flame stabilizing effect is achieved on the flame at the ignition groove 21, secondary air supply of the internal ignition groove 21 can be guaranteed, namely, the flame combustion in the ignition groove 21 is guaranteed, meanwhile, the applicability to the opening degree of an air door is enhanced, and the flame transfer performance can be guaranteed under the condition of large opening degree of the air door.
Specifically, the through hole has two first through holes 212 and two second through holes 213 respectively disposed at both sides of the top opening, an included angle α where the center lines of the first through holes 212 and the second through holes 213 intersect is obtuse, but also acute, preferably obtuse, since the included angle α where the center lines of the first through holes 212 and the second through holes 213 intersect is obtuse, the impact force of the two opposite impacts is larger, thereby the gas flowing out from the first through holes 212 and the second through holes 213 collides oppositely, thereby improving the mixing uniformity of the gas and the air in the ignition slot 21, and simultaneously reducing the flow rate, thereby improving the flame holding performance, in order to further slow down the gas flowing out from the first through holes 212 and/or the second through holes 213, the first through holes 212 and the second through holes 213 are disposed alternately, and the center position of the ignition slot 21 has a boss 3 relatively isolated from the ignition slot 21, the bottom of the boss 3 and the ignition slot 21 has a space 31 between the ignition slot 21 and the ignition slot 21, and the first through hole 212 and/or the second through hole 213, and the ignition slot 21 are disposed from the inner side of the outer side ignition slot 21 to the outer side ignition slot 215, and the inner side ignition slot 21, and the outer side ignition slot 215 of the ignition slot 21, and the outer side ignition slot 21 are disposed from the outer side ignition slot 21, and the outer side ignition slot 215 are disposed from the outer side ignition slot 21, and the outer side ignition slot 215 are disposed from the outer side ignition slot 21, and the outer side ignition slot 215 are disposed from the outer side ignition slot 215, and the outer side ignition slot 215 are disposed from the ignition slot 21, and the ignition slot 215 are disposed from the outer side ignition slot 21, and the outer side ignition slot 215, and the ignition slot 215, the ignition slot 215 are disposed from the ignition slot 21, the ignition slot 215, and the ignition slot 215 are disposed from the ignition slot 21, the ignition slot 215, the ignition slot 21, the ignition slot 215 are disposed from the ignition slot 215, the ignition slot 21, the ignition slot 215 is disposed from the ignition slot 215, the ignition slot 215 is disposed from the ignition slot 21, the ignition slot 215 is disposed from the ignition slot 215, the ignition slot 215 is disposed from the ignition slot 215, the ignition slot 21, the ignition slot 215 is disposed from the ignition slot 21, the ignition slot 215 is disposed from the ignition slot 215, the ignition slot 21, the ignition slot 215 is disposed from the.
Finally, the outer annular wall 12 is circumferentially provided with a plurality of fire outlets 121 communicating with the air mixing chamber 13. In order to stabilize the flame outlet holes 121, at least two flame stabilizing holes 122 communicated with the gas mixing chamber 13 are circumferentially formed in the outer annular wall 12 below the flame outlet holes 121. In order to stabilize the pressure and flame stabilizing holes 122, the outer annular wall 12 is provided with a groove 123 intersecting the flame outlet 121 and the flame stabilizing holes 122 along the circumferential direction below the flame outlet 121.
Example 2
Basically the same as the structure of the embodiment 1, the only difference is that there is no boss 3, the first through hole 212 and the second through hole 213, the intersecting included angle α of the center lines of the first through hole 212 and the second through hole 213 is an obtuse angle, and the impact force of the two opposite impacts is larger, so that the gas phase flowing out from the first through hole 212 and the second through hole 213 is opposite, thereby improving the mixing uniformity of the gas and the air in the ignition slot 21, reducing the flow velocity and improving the flame stabilizing performance, as shown in fig. 6.
Claims (11)
1. The utility model provides a fire lid for gas-cooker, including fire lid body (1), cyclic annular roof (10) of this fire lid body (1) and from the inboard edge of this cyclic annular roof (10), outer lateral edge vertical or slope downwardly extending's interior rampart (11), outer rampart (12) are formed with and mix gas chamber (13), and the upper surface of fire lid body (1) is formed with to pass fire room (2) from interior rampart (11) to outer rampart (12) radially outwards extend towards the center of fire lid body (1), fire leading groove (21) have been seted up on the roof of passing fire room (2), its characterized in that: at least one of the two inner side walls of the top opening of the ignition groove (21) is provided with a convex rib (211) which protrudes towards the other side wall and extends along the radial direction, and the other parts of the ignition groove (21) except the top opening are provided with at least one through hole which is communicated with the gas mixing cavity (13) and the opening of which faces the convex rib (211).
2. The fire cap for a gas range according to claim 1, wherein the number of the through holes is two, that is, a first through hole (212) and a second through hole (213) disposed at both sides of the top opening, and the center lines of the first through hole (212) and the second through hole (213) intersect to form an included angle α.
3. Fire cover for gas cookers according to claim 2, characterized in that: the first through holes (212) and the second through holes (213) are arranged in a staggered mode, bosses (3) which are isolated from the ignition grooves (21) relatively are arranged in the center of the ignition grooves (21), a space (31) is formed between the bottoms of the bosses (3) and the ignition grooves (21), and the first through holes (212) and/or the second through holes (213) penetrate through the bosses (3).
4. Fire cover for gas cookers according to claim 3, characterized in that: the top end of the boss (3) is provided with flow guide inclined planes (4, 5) connected with the convex ribs (211), and the flow guide inclined planes (4, 5) gradually incline upwards from bottom to top.
5. The fire cover for the gas range according to any one of claims 1 to 4, wherein: the ignition groove (21) is provided with an inner side port (214) facing the center of the fire cover body (1), and the fire transfer chamber (2) is provided with an air outlet (22) communicated with the air mixing cavity (13) below the inner side port (214).
6. Fire cover for gas cookers according to claim 5, characterized in that: the air outlet hole (22) is inclined inwards from an air inlet end (221) communicated with the air mixing cavity (13) to an air outlet end (222) communicated with the fire transfer chamber (2) and gradually approaches to the inner side port (214).
7. Fire cover for gas cookers according to claim 6, wherein: the ignition groove (21) is provided with an outer side opening (215) positioned on the outer ring wall (12), an air inlet hole (210) communicated with the air mixing cavity (13) is formed in the position, close to the outer side opening (215) of the ignition groove (21), of the bottom of the ignition groove (21), and the center line of the air inlet hole (210) is perpendicular to or intersected with the convex rib (211).
8. Fire cover for gas cookers according to claim 7, wherein: the bead (211) is progressively outward and proximate to the outer port (215) from the inner port (214) to the outer port (215).
9. The fire cover for the gas range according to any one of claims 1 to 4, wherein: the outer annular wall (12) is provided with at least two fire outlets (121) which are communicated with the gas mixing cavity (13) along the circumferential direction.
10. Fire cover for gas cookers according to claim 9, wherein: the outer annular wall (12) is provided with at least two flame stabilizing holes (122) communicated with the gas mixing cavity (13) along the circumferential direction below the fire outlet hole (121).
11. Fire cover for gas cookers according to claim 10, wherein: the outer ring wall (12) is provided with a groove (123) intersecting with the flame stabilizing hole (122) along the circumferential direction below the flame outlet hole (121), and the flame stabilizing hole (122) penetrates through the groove (123).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811457041.8A CN111256122B (en) | 2018-11-30 | 2018-11-30 | Fire cover for gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811457041.8A CN111256122B (en) | 2018-11-30 | 2018-11-30 | Fire cover for gas stove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111256122A true CN111256122A (en) | 2020-06-09 |
| CN111256122B CN111256122B (en) | 2021-11-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811457041.8A Active CN111256122B (en) | 2018-11-30 | 2018-11-30 | Fire cover for gas stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111256122B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076310A (en) * | 2020-08-12 | 2022-02-22 | 宁波方太厨具有限公司 | Fire cover and combustor comprising same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110082343A (en) * | 2010-01-11 | 2011-07-19 | (주)펠리테크 | Gas range oven with a covering container |
| CN103162292A (en) * | 2013-02-26 | 2013-06-19 | 宁波方太厨具有限公司 | Burner outer flame cover |
| DE102015225414A1 (en) * | 2014-12-17 | 2016-06-23 | Lg Electronics Inc. | burner |
| CN206112934U (en) * | 2016-10-31 | 2017-04-19 | 宁波方太厨具有限公司 | Burner fire cap of gas cooking utensils |
| CN106895405A (en) * | 2015-12-18 | 2017-06-27 | 博西华电器（江苏）有限公司 | The fire cover of gas burner, gas burner and gas-cooker |
| CN207196497U (en) * | 2017-06-23 | 2018-04-06 | 宁波方太厨具有限公司 | A kind of burner fire lid of gas kitchen ranges |
| CN207407343U (en) * | 2017-09-28 | 2018-05-25 | 广东美的厨房电器制造有限公司 | Fire cover and burner |
| CN208025517U (en) * | 2018-03-30 | 2018-10-30 | 宁波爷玛喜电器有限公司 | Outer fire cover |
-
2018
- 2018-11-30 CN CN201811457041.8A patent/CN111256122B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110082343A (en) * | 2010-01-11 | 2011-07-19 | (주)펠리테크 | Gas range oven with a covering container |
| CN103162292A (en) * | 2013-02-26 | 2013-06-19 | 宁波方太厨具有限公司 | Burner outer flame cover |
| DE102015225414A1 (en) * | 2014-12-17 | 2016-06-23 | Lg Electronics Inc. | burner |
| CN106895405A (en) * | 2015-12-18 | 2017-06-27 | 博西华电器（江苏）有限公司 | The fire cover of gas burner, gas burner and gas-cooker |
| CN206112934U (en) * | 2016-10-31 | 2017-04-19 | 宁波方太厨具有限公司 | Burner fire cap of gas cooking utensils |
| CN207196497U (en) * | 2017-06-23 | 2018-04-06 | 宁波方太厨具有限公司 | A kind of burner fire lid of gas kitchen ranges |
| CN207407343U (en) * | 2017-09-28 | 2018-05-25 | 广东美的厨房电器制造有限公司 | Fire cover and burner |
| CN208025517U (en) * | 2018-03-30 | 2018-10-30 | 宁波爷玛喜电器有限公司 | Outer fire cover |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076310A (en) * | 2020-08-12 | 2022-02-22 | 宁波方太厨具有限公司 | Fire cover and combustor comprising same |
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| Publication number | Publication date |
|---|---|
| CN111256122B (en) | 2021-11-26 |
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