CN109724082B - High-efficiency burner - Google Patents
High-efficiency burner Download PDFInfo
- Publication number
- CN109724082B CN109724082B CN201711046467.XA CN201711046467A CN109724082B CN 109724082 B CN109724082 B CN 109724082B CN 201711046467 A CN201711046467 A CN 201711046467A CN 109724082 B CN109724082 B CN 109724082B
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- China
- Prior art keywords
- inner ring
- outer ring
- cover body
- air
- cavity
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000001502 supplementing effect Effects 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000000153 supplemental effect Effects 0.000 claims 1
- 239000002737 fuel gas Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 15
- 238000002485 combustion reaction Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Gas Burners (AREA)
Abstract
The invention relates to a high-efficiency combustor, which comprises an inner ring fire cover body and a cover body, wherein the inner ring fire cover body is provided with inner ring fire holes along the circumferential direction at the upper end edge, an inner cavity of the inner ring fire cover body corresponding to the inner ring fire holes forms an inner ring air mixing cavity, the inner ring fire cover body below the inner ring air mixing cavity is provided with air mixing channels penetrating up and down, the number of the air mixing channels is matched with that of the inner ring air vents, and each air mixing channel is respectively arranged on the corresponding inner ring air vents, so that each inner ring air vent and the inner ring air mixing cavity are respectively communicated through each air mixing channel. According to the invention, the air mixing channels are arranged and are respectively communicated with the inner ring air vents and the inner ring air mixing cavity through the air mixing channels, so that air and fuel gas can be fully mixed in the air mixing channels and enter the air mixing cavity for remixing, and the air and the fuel gas can be fully and efficiently combusted in the inner ring fire holes after being fully combusted.
Description
Technical Field
The invention relates to the field of gas stoves, in particular to a high-efficiency combustor.
Background
The gas burner comprises a base, a gas mixing cavity, an outer ring fire cover and an inner ring fire cover, wherein the gas mixing cavity is arranged above the base, and the outer ring fire cover and the inner ring fire cover are respectively arranged above the gas mixing cavity. The outer ring fire cover is generally annular and comprises an annular top wall, an inner ring wall and an outer ring wall, wherein the inner ring wall and the outer ring wall are formed by respectively extending vertically downwards or obliquely downwards from the inner side edge and the outer side edge of the annular top wall, the inner ring wall and the outer ring wall are surrounded to form a gas mixing cavity, and an outer ring fire outlet hole is formed in the outer ring wall. The inner ring fire cover generally comprises a cylindrical base and a cover body arranged on the base in a covering manner, wherein an inner ring fire outlet hole is formed in the cover body.
There are various ways of improving the combustion effect of the burner, such as a way of increasing the center load by lowering the height of the pan support, and although this way can theoretically improve the combustion efficiency, in actual use, if the pan support is arranged at a lower distance from the bottom of the pan to the fire cover, the combustion will be affected on the other hand, and the combustion efficiency will be reduced.
Therefore, it is currently generally accepted that increasing the supply of secondary air is considered to be the most effective way to increase combustion efficiency in situations where the proportion of primary air cannot be effectively increased due to structural limitations of the injection system. However, the existing burner configuration as described above has limited secondary air supply capability and far from meeting the need for more efficient combustion (75%).
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-efficiency combustor capable of effectively improving combustion efficiency aiming at the prior art.
The technical scheme adopted for solving the technical problems is as follows: the high-efficiency burner comprises a base, an outer ring fire cover and an inner ring fire cover which are arranged on the base, and is characterized in that an inner ring cavity is arranged in an inner cavity of the base, and an inner ring vent communicated with the inner ring cavity is arranged on a top plate of the base; the inner ring fire cover comprises an inner ring fire cover body with an opening at the upper part and a cover body arranged at the opening part of the inner ring fire cover body, wherein the upper end edge of the inner ring fire cover body is circumferentially provided with inner ring fire holes, the inner cavity of the inner ring fire cover body corresponding to the inner ring fire holes forms an inner ring air mixing cavity, the inner ring fire cover body part below the inner ring air mixing cavity is provided with air mixing channels penetrating up and down, the number of the air mixing channels is matched with that of the inner ring air vents, and each air mixing channel is respectively arranged on the corresponding inner ring air vents, so that each inner ring air vent and the inner ring air mixing cavity are respectively communicated through each air mixing channel.
Preferably, the second fire cover body is provided with a central hole, and secondary air supplementing holes which are respectively communicated with the central hole are arranged on the side wall of the second fire cover body at intervals along the circumferential direction.
Further, it is preferable that the secondary air supply hole be uniformly flared from inside to outside, so that air can more effectively pass through the secondary air supply hole into the second flame cover body.
Preferably, the upper end of the second fire cover body is provided with large concave grooves which are concave downwards along the circumferential direction at intervals, convex blocks are respectively formed among the large concave grooves, small concave grooves which are concave downwards are respectively formed on the convex blocks, and the outer side edge of the cover body is placed on the upper end edge, so that the outer side edge of the cover body, the large concave grooves and the small concave grooves respectively enclose large fire holes and small fire holes, and the large fire holes and the small fire holes form the inner ring fire holes.
Preferably, a flame stabilizing groove which is recessed downwards is arranged on the upper end face of the body along the circumferential direction. So that the inner ring fire hole can burn more stably, and the phenomena of tempering, flameout and the like are avoided.
Preferably, the outer ring fire cover comprises an annular outer ring fire cover body, the outer ring fire cover body comprises an annular top surface, an inner ring wall and an outer ring wall, wherein the inner ring wall and the outer ring wall extend downwards vertically or obliquely from the inner side edge and the outer side edge of the annular top surface, an outer ring mixing cavity is formed among the annular top surface, the inner ring wall and the outer ring wall, and main fire holes are formed in the outer ring wall at intervals along the circumferential direction. Therefore, the coanda effect can be utilized, so that air is tightly wrapped on the outer ring surface of the outer ring wall, the supply path of secondary air is shortened, and the secondary air can be more efficiently supplied. Therefore, the secondary air supply efficiency can be effectively improved by modifying the fire cover on the basis of the existing injection system, so that the combustion efficiency of the gas burner is improved.
Preferably, at least one of the annular top surface, the outer ring surface of the outer ring wall and the outer ring surface of the inner ring wall is arc-shaped, and a smooth transition is formed between two adjacent annular top surfaces and the outer ring surface of the inner ring wall.
Preferably, the outer ring fire cover body comprises a first part and a second part, wherein the first part and the second part are arranged at intervals along the circumferential direction of the outer ring fire cover body, the bottom of each first part is respectively provided with an air inlet, the air inlets are respectively connected with a gas mixing pipe, secondary air supplementing openings are formed between adjacent gas mixing pipes, the secondary air supplementing openings are in one-to-one correspondence with the secondary air supplementing holes and respectively face inwards and outwards, and the bottoms of each second part are respectively connected through connecting walls; the inner cavity of the base is also provided with an outer ring cavity, the top plate of the base is also provided with outer ring air vents communicated with the upper outer ring cavity, the number of the outer ring air vents is matched with that of the air mixing pipes, and the free ends of the air mixing pipes are respectively connected in the corresponding outer ring air vents, so that the outer ring cavity is communicated with the air mixing pipes through the outer ring air vents.
Preferably, each of the first portions has a semicircular cross section as a whole, and each of the second portions has a circular cross section as a whole. Therefore, the wall attaching effect of the surfaces of the first part and the second part on the air can be further optimized, and the secondary air supply efficiency is further improved.
Preferably, a supporting block for supporting the bottom surface of the pot is fixed at the top of each first part, each supporting block extends upwards, an auxiliary fire hole communicated with the outer ring air mixing cavity is formed in the inner side surface of each supporting block, and a secondary air supply port is formed between every two adjacent supporting blocks.
Preferably, the duct of the auxiliary fire hole extends obliquely upward in the support block relative to the horizontal plane, so that the auxiliary heating of the bottom surface of the cooker can be better performed through the auxiliary fire hole.
Compared with the prior art, the invention has the advantages that: the inner ring fire cover is provided with the gas mixing channels, and the gas mixing channels are respectively communicated with the inner ring air vents and the inner ring gas mixing cavity through the gas mixing channels, so that air and fuel gas can be fully mixed in the gas mixing channels, and the air and the fuel gas can be fully mixed and then fully and efficiently combusted in the inner ring fire holes after entering the gas mixing cavity.
Drawings
FIG. 1 is a schematic view showing the structure of a burner in embodiment 1 of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along the direction B-B of FIG. 1;
FIG. 4 is an exploded view of the burner in embodiment 1 of the present invention;
FIG. 5 is a schematic view of the inner ring fire cover body in embodiment 1 of the present invention;
fig. 6 is a schematic view of the structure of fig. 5 in another direction.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
Example 1:
as shown in fig. 1 to 6, a high efficiency burner includes a base 1, and an outer ring fire cover 13 and an inner ring fire cover 14 provided on the base 1. The outer ring fire cover 13 comprises an annular outer ring fire cover body 2, the outer ring fire cover body 2 comprises an annular top surface 201, an inner ring wall 203 and an outer ring wall 202, wherein the inner ring wall 203 and the outer ring wall 202 extend downwards vertically or obliquely from the inner side edge and the outer side edge of the annular top surface 201, an outer ring mixing cavity 24 is formed among the annular top surface 201, the inner ring wall 203 and the outer ring wall 202, and main fire holes 25 are arranged on the outer ring wall 202 at intervals along the circumferential direction.
Further, the outer ring fire cover body 2 includes a first portion 20a and a second portion 20b, where the first portion 20a and the second portion 20b are circumferentially spaced along the outer ring fire cover body 2, the bottom of each first portion 20a forms an air inlet 204a, the air inlet 204a is connected with one air mixing pipe 22, a secondary air supplementing opening 23 is formed between adjacent air mixing pipes 22, and the bottom of each second portion 20b is connected with the connecting wall 204. In this embodiment, the number of the air mixing pipes 22 is four, and correspondingly, the number of the secondary air supplementing ports 23 is also four.
Of the annular top surface 201, the outer annular surface of the outer annular wall 202, the outer annular surface of the inner annular wall 203, and the outer annular surface of the connecting wall 204, at least the outer annular surface of the outer annular wall 202 is circular-arc-shaped. Preferably, the annular top surface 201, the outer annular surface of the outer annular wall 202, the outer annular surface of the inner annular wall 203, and the outer annular surface of the connecting wall 204 are all circular arc-shaped, and a smooth transition is formed between the adjacent two. That is, the cross section of the first portion 20a is semicircular, and the cross section of the second portion 20b is circular, so that the wall attaching effect can be utilized to tightly wrap the air on the outer surface of the whole outer ring fire cover body 2, thereby shortening the supply path of the secondary air and further more efficiently supplying the secondary air.
Still further, a supporting block 21 for supporting the bottom surface of the pot is fixed to the top of the first portion 20a, each supporting block 21 extends upward, and an auxiliary fire hole 211 is formed on the inner side surface of the supporting block and is communicated with the outer ring air mixing cavity 24. The arrangement of the supporting block 21 in this embodiment not only makes the structure of the burner simple, does not need to additionally provide a pot bracket, but also provides the auxiliary fire hole 211, and can increase the center load of the burner without reducing the height of the supporting block 21, thereby improving the combustion efficiency thereof. In addition, a secondary air supply port 212 is formed between the adjacent support blocks 21, so that secondary air can be supplied through the secondary air supply port 212 above the outer ring fire cover body 2, the secondary air supply path is further shortened, and the secondary air supply efficiency can be further improved by cooperation with the secondary air supply port 23. Preferably, the secondary air supply ports 212 are respectively in one-to-one correspondence with the secondary air supply ports 23 and vertically opposite to each other, so that part of the air escaping from the secondary air supply ports 23 can enter the corresponding secondary air supply ports 212 again under the effect of the coanda effect of the outer annulus of the outer annular wall 202, and accordingly, part of the air escaping from the secondary air supply ports 212 can enter the corresponding secondary air supply ports 23 under the effect of the coanda effect of the outer annulus of the outer annular wall 202, thereby sufficiently improving the secondary air supply efficiency.
Preferably, the duct of the auxiliary fire hole 211 extends obliquely upward with respect to the horizontal plane in the above-mentioned supporting block 21, so that the bottom surface of the pot can be better auxiliary heated by the auxiliary fire hole 211. The auxiliary fire holes 211 are provided at intervals along the width direction of each support block 21 and are parallel to the main fire holes 25. In addition, the supporting block 21 has a hollow structure and is respectively communicated with the outer ring air mixing cavity 24, and the supporting block 21, the outer ring fire cover body 2 and the air mixing pipe 22 are integrated, so that the processing and the manufacturing are convenient, and the internal structure of the fire cover can be more stable. In addition, in order to make each support block 21 better support the bottom surface of the pot, it is preferable that the upper ends of each support block 21 are respectively bent outward in a rounded transition and extend obliquely upward, so that support cambered surfaces 210 are respectively formed on the upper end surfaces thereof.
An outer ring cavity 11 and an inner ring cavity 12 are arranged in the inner cavity of the base 1, and an outer ring vent 101 and an inner ring vent 102 are respectively arranged on the top plate 10 of the base 1, wherein the number of the outer ring vents 101 is matched with that of the air mixing pipes 22, and the free ends of the air mixing pipes 22 are respectively connected in the corresponding outer ring vents 101, so that the outer ring cavity 11 is respectively communicated with the air mixing pipes 22 through the outer ring vents 101.
The inner ring vent 102 communicates with the inner ring cavity 12. The inner ring fire cover 14 includes an inner ring fire cover body 32 with an open upper part and a cover body 31 covering the mouth of the inner ring fire cover body 32, the upper end edge of the inner ring fire cover body 32 is provided with an inner ring fire hole 30 along the circumferential direction, the inner cavity of the inner ring fire cover body 32 corresponding to the inner ring fire hole 30 forms an inner ring air mixing cavity 33, the inner ring fire cover body 32 below the inner ring air mixing cavity 33 is provided with air mixing channels 324 penetrating up and down, the number of the air mixing channels 324 is matched with that of the inner ring air vents 102, and each air mixing channel 324 is respectively arranged on the corresponding inner ring air vents 102, so that the inner ring air vents 102 are communicated with the inner ring air mixing cavity 33 through each air mixing channel 324.
Preferably, the inner ring fire cover body 32 has a central hole 34, and secondary air supplementing holes 325 respectively communicating with the central hole 34 are provided on a sidewall of the inner ring fire cover body 32 at intervals in the circumferential direction. The number of the secondary air supplementing holes 325 in the present embodiment corresponds to the secondary air supplementing openings 23, and each secondary air supplementing opening 23 is opposite to the corresponding secondary air supplementing hole 325, so that the secondary air supplementing path can be shortened, and the supplementing efficiency can be improved. In order to make the secondary air supply effect of the inner ring fire cover 14 better, the secondary air supply holes 325 are uniformly flared from inside to outside.
In addition, in this embodiment, large concave grooves 321 are disposed at intervals along the circumferential direction at the upper end of the inner ring fire cover body 32, and convex blocks 322 are respectively formed between the large grooves 321, small concave grooves 323 are respectively formed on the convex blocks 322, and the outer side edge of the cover body 31 is placed on the upper end edge, so that the outer side edge of the cover body 31, the large grooves 321 and the small grooves 323 respectively enclose large fire holes 301 and small fire holes 302, and the large fire holes 301 and the small fire holes 302 form the inner ring fire holes 30. The large groove 321 and the small groove 323 are square grooves, so that the large fire hole 301 and the small fire hole 302 are square holes, and cleaning of the fire holes is facilitated. Preferably, the upper end surface is provided with a flame stabilizing groove 326 recessed downwards along the circumferential direction, so that the inner ring fire hole 30 can burn more stably, and phenomena such as tempering and flameout are avoided.
Claims (10)
1. The high-efficiency burner comprises a base (1), and an outer ring fire cover (13) and an inner ring fire cover (14) which are arranged on the base (1), and is characterized in that an inner ring cavity (12) is arranged in an inner cavity of the base (1), and an inner ring vent (102) communicated with the inner ring cavity (12) is arranged on a top plate (10) of the base (1);
the inner ring fire cover (14) comprises an inner ring fire cover body (32) with an upper opening and a cover body (31) which covers the opening part of the inner ring fire cover body (32), an inner ring fire hole (30) is circumferentially arranged at the upper end edge of the inner ring fire cover body (32), an inner ring mixed air cavity (33) is formed by an inner cavity of the inner ring fire cover body (32) corresponding to the inner ring fire hole (30), a gas mixing channel (324) penetrating vertically is arranged at the inner ring fire cover body (32) part below the inner ring mixed air cavity (33), the number of the gas mixing channels (324) is matched with that of the inner ring air vents (102), and each gas mixing channel (324) is respectively arranged on the corresponding inner ring air vents (102), so that each inner ring air vent (102) and each inner ring mixed air cavity (33) are respectively communicated through each gas mixing channel (324);
the upper end of inner ring fire lid body (32) is provided with big recess (321) of undercut along circumference interval, and forms lug (322) respectively between each big recess (321), has seted up little recess (323) of undercut respectively on each lug (322), the outside edge of lid (31) is shelved on above-mentioned upper end edge to make the outside edge of lid (31) and each big recess (321) and each little recess (323) enclose into big fire hole (301) and little fire hole (302) respectively, this big fire hole (301) and little fire hole (302) constitute above-mentioned inner ring fire hole (30).
2. A burner according to claim 1, wherein the inner ring burner cover body (32) has a central hole (34), and secondary air supplementing holes (325) respectively communicating with the central hole (34) are provided on a side wall of the inner ring burner cover body (32) at intervals in a circumferential direction.
3. The high efficiency burner of claim 2, wherein the secondary air supplemental holes (325) are uniformly flared from inside to outside.
4. The high-efficiency burner as claimed in claim 1, wherein the upper end surface of the inner ring fire cover body (32) is provided with a flame stabilizing groove (326) recessed downward in the circumferential direction.
5. The efficient burner as claimed in claim 2, wherein the outer ring fire cover (13) comprises an annular outer ring fire cover body (2), the outer ring fire cover body (2) comprises an annular top surface (201), an inner ring wall (203) and an outer ring wall (202) which extend vertically or obliquely downwards from the inner side edge and the outer side edge of the annular top surface (201), an outer ring mixing cavity (24) is formed among the annular top surface (201), the inner ring wall (203) and the outer ring wall (202), and main fire holes (25) are arranged on the outer ring wall (202) at intervals along the circumferential direction, wherein at least the outer ring surfaces of the annular top surface (201), the outer ring surface of the outer ring wall (202) and the outer ring surface of the inner ring wall (203) are in a circular arc shape.
6. The efficient burner as claimed in claim 5, wherein at least two of the annular top surface (201), the outer annular surface of the outer annular wall (202) and the outer annular surface of the inner annular wall (203) are circular arc-shaped, and wherein a rounded transition is formed between adjacent ones.
7. The high-efficiency burner as claimed in claim 6, wherein the outer ring fire cover body (2) comprises a first portion (20 a) and a second portion (20 b), the first portion (20 a) and the second portion (20 b) are circumferentially spaced along the outer ring fire cover body (2), wherein the bottom of each first portion (20 a) is respectively formed with an air inlet (204 a), the air inlet (204 a) is respectively connected with a gas mixing pipe (22), a secondary air supplementing opening (23) is formed between adjacent gas mixing pipes (22), the secondary air supplementing opening (23) is in one-to-one correspondence with the secondary air supplementing holes (325) and respectively faces inside and outside, and the bottom of each second portion (20 b) is respectively connected with a connecting wall (204);
the inner cavity of the base (1) is also provided with an outer ring cavity (11), the top plate (10) of the base (1) is also provided with an outer ring vent (101) communicated with the upper outer ring cavity (11), the number of the outer ring vent (101) is matched with the number of the air mixing pipes (22), and the free ends of the air mixing pipes (22) are respectively connected in the corresponding outer ring vents (101), so that the outer ring cavity (11) is communicated with the air mixing pipes (22) through the outer ring vents (101).
8. A high efficiency burner as claimed in claim 7, wherein each of said first portions (20 a) has a generally semicircular cross section and said second portions (20 b) have a generally circular cross section.
9. The efficient burner as claimed in claim 7 or 8, wherein a supporting block (21) for supporting the bottom surface of the pot is fixed to the top of each of the first portions (20 a), each supporting block (21) extends upward, and an auxiliary fire hole (211) communicated with the outer ring mixing chamber (24) is formed in the inner side surface of each supporting block (21), and a secondary air supply port (212) is formed between the adjacent supporting blocks (21).
10. A burner according to claim 9, wherein the passages of the auxiliary fire holes (211) extend obliquely upwards in relation to the horizontal plane in the support block (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711046467.XA CN109724082B (en) | 2017-10-31 | 2017-10-31 | High-efficiency burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711046467.XA CN109724082B (en) | 2017-10-31 | 2017-10-31 | High-efficiency burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109724082A CN109724082A (en) | 2019-05-07 |
| CN109724082B true CN109724082B (en) | 2024-01-23 |
Family
ID=66293490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711046467.XA Active CN109724082B (en) | 2017-10-31 | 2017-10-31 | High-efficiency burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109724082B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112146093B (en) * | 2019-06-26 | 2022-02-01 | 宁波方太厨具有限公司 | Fire cover of kitchen range |
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|---|---|---|---|---|
| WO2006114063A1 (en) * | 2005-05-20 | 2006-11-02 | Zhejiang Shuaikang Electric Stock Co., Ltd. | A gas burner |
| CN201339933Y (en) * | 2008-09-09 | 2009-11-04 | 博西华电器（江苏）有限公司 | Gas stove head |
| CN103486586A (en) * | 2013-05-23 | 2014-01-01 | 广东祥基电器有限公司 | Inner flame cover for domestic gas burners and burner with inner flame cover |
| CN204063043U (en) * | 2014-07-24 | 2014-12-31 | 宁波方太厨具有限公司 | A kind of fire cover of household gas range and apply the burner of this fire cover |
| CN106090913A (en) * | 2016-08-16 | 2016-11-09 | 宁波方太厨具有限公司 | A kind of external ring fire cover of gas stove burner |
| CN207438582U (en) * | 2017-10-31 | 2018-06-01 | 宁波方太厨具有限公司 | A kind of burner with high efficiency |
-
2017
- 2017-10-31 CN CN201711046467.XA patent/CN109724082B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006114063A1 (en) * | 2005-05-20 | 2006-11-02 | Zhejiang Shuaikang Electric Stock Co., Ltd. | A gas burner |
| CN201339933Y (en) * | 2008-09-09 | 2009-11-04 | 博西华电器（江苏）有限公司 | Gas stove head |
| CN103486586A (en) * | 2013-05-23 | 2014-01-01 | 广东祥基电器有限公司 | Inner flame cover for domestic gas burners and burner with inner flame cover |
| CN204063043U (en) * | 2014-07-24 | 2014-12-31 | 宁波方太厨具有限公司 | A kind of fire cover of household gas range and apply the burner of this fire cover |
| CN106090913A (en) * | 2016-08-16 | 2016-11-09 | 宁波方太厨具有限公司 | A kind of external ring fire cover of gas stove burner |
| CN207438582U (en) * | 2017-10-31 | 2018-06-01 | 宁波方太厨具有限公司 | A kind of burner with high efficiency |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109724082A (en) | 2019-05-07 |
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