CN110285449B - High-efficiency energy-gathering upper air inlet furnace end - Google Patents
High-efficiency energy-gathering upper air inlet furnace end Download PDFInfo
- Publication number
- CN110285449B CN110285449B CN201910567753.3A CN201910567753A CN110285449B CN 110285449 B CN110285449 B CN 110285449B CN 201910567753 A CN201910567753 A CN 201910567753A CN 110285449 B CN110285449 B CN 110285449B
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- Prior art keywords
- outer ring
- air inlet
- air
- fire cover
- base
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- 238000009413 insulation Methods 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 33
- 239000007789 gas Substances 0.000 description 27
- 239000000203 mixture Substances 0.000 description 8
- 238000010411 cooking Methods 0.000 description 5
- 239000002737 fuel gas Substances 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000005465 channeling Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- F23D14/84—Flame spreading or otherwise shaping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention discloses a high-efficiency energy-gathering upper air inlet furnace end, which sequentially comprises a fire cover, an upper cover, a base and an air inlet pipe from top to bottom; the fire cover comprises a central fire cover and an outer ring fire cover; the upper cover comprises a plurality of outer ring air passages and a central air passage; the outer ring air passage is arranged corresponding to the outer ring fire cover; the central air passage is arranged corresponding to the central fire cover; the base is arranged or placed on the table top; a heat insulation pad is arranged between the base and the table top. Compared with the prior art, the invention has the advantages of high combustion temperature, good combustion quality, gas saving and the like.
Description
Technical Field
The invention relates to the technical field of gas appliances, in particular to a high-efficiency energy-gathering upper air inlet furnace end.
Background
The gas cooker is a kitchen utensil which is heated by direct fire by using liquefied petroleum gas (liquid state), artificial gas, natural gas and other gas fuels. The desk type kitchen range mainly comprises a fire cover, a valve body, a shell, a stove frame, a knob, a liquid containing disc, stove feet, an air inlet pipe, a pulse igniter and the like.
The gas stove on the market at present mainly is two kinds of gas stoves of upper air inlet type and lower air inlet type, exists the burning inadequately, and furnace end below heat loss is more to lead to whole furnace end burning not to reach required temperature, and combustion heat utilization ratio is low simultaneously, increases combustion cost.
Disclosure of Invention
The invention is provided in view of the above problems existing in the prior art, and provides the high-efficiency energy-gathering upper air inlet furnace head which is simple in structure, small in heat loss and high in combustion efficiency.
The invention is realized by the following technical scheme: an efficient energy-gathering upper air inlet furnace end sequentially comprises a fire cover, an upper cover, a base and an air inlet pipe from top to bottom;
The fire cover comprises a central fire cover and an outer ring fire cover;
The upper cover comprises a plurality of outer ring air passages and a central air passage;
The outer ring air passage is arranged corresponding to the outer ring fire cover; the central air passage is arranged corresponding to the central fire cover;
The base is arranged or placed on the table top;
a heat insulation pad is arranged between the base and the table top.
Preferably, the heat insulation pad is fixed on the air inlet pipe;
or the heat insulation pad is fixed at the bottom of the base.
Preferably, a primary mixing cavity is formed between the base and the upper cover;
the upper cover comprises at least one layer of primary air inlet and at least one layer of secondary air inlet;
the primary air inlet is communicated with the primary mixing cavity.
Preferably, a partition plate is provided between the primary air introduction port and the secondary air introduction port;
the primary air inlets are uniformly distributed in the circumferential direction of the upper cover;
the secondary air introduction ports are uniformly distributed in the circumferential direction of the upper cover.
Preferably, the base comprises an upper base and a lower base;
the upper base and the upper cover form a primary mixing cavity and an outer ring mixing cavity;
the outer ring mixing cavity is communicated with the outer ring air passage;
The air inlet pipe comprises a central air inlet pipe and at least two outer ring air inlet pipes;
the central air inlet pipe and the outer ring air inlet pipe are both arranged in the primary mixing cavity;
The central air inlet pipe is arranged corresponding to the central air passage;
the outer ring air inlet pipe is arranged corresponding to the annular flow passage, and the annular flow passage is communicated with the outer ring mixing cavity.
Preferably, the air outlet of the annular flow passage is tangentially communicated with the outer annular mixing cavity.
Preferably, the outer ring air inlet pipe is provided with two air inlet pipes;
the air outlet of the outer ring air inlet pipe is horizontally arranged;
The annular flow channel is horizontally arranged on the base;
the air inlet of the annular flow passage is of an enlarged structure;
An open type cavity is arranged between the expansion type structure and the air outlet of the outer ring air inlet pipe;
the open type cavity is communicated with the primary mixing cavity.
Preferably, the annular flow passage is spiral;
or the air outlets of the annular flow channels are uniformly distributed on the base, and the directions of the air outlets of the annular flow channels are consistent along the circumferential direction of the base.
Preferably, the outer ring fire cover is mounted or placed on the upper cover;
The inner side of the outer ring fire cover is provided with a plurality of rhombus structures which are uniformly distributed on the inner side of the outer ring fire cover;
An inclined reflecting surface is arranged between the rhombohedron structures.
Preferably, the two surfaces of the rhombohedron structure close to the central fire cover are respectively provided with an inner fire hole, and the inner fire holes are communicated with the outer ring air passage.
Compared with the prior art, the heat insulation pad is arranged, so that the transfer of combustion heat at the fire cover to a table top (the table top is generally made of materials such as metal and the like and has high heat conductivity coefficient) is effectively reduced, the heat insulation and energy accumulation effects are realized, the combustion temperature is improved, and the energy is saved; the upper cover comprises at least one layer of primary air inlet and at least one layer of secondary air inlet, so that the distance between the fire cover and the table top is effectively increased, the energy loss is reduced, and meanwhile, a primary mixing cavity and an outer ring mixing cavity or an outer ring air passage have sufficient space for preheating, so that the utilization rate of combustion heat is improved; the annular flow passage is arranged, the gas mixture enters the outer ring mixing cavity in a vortex manner, so that the mixing time of the gas mixture is effectively prolonged, the gas and the air are fully mixed, and the combustion efficiency is effectively improved; and meanwhile, more than 2 annular flow passages are arranged, so that the pressure of the gas mixture entering each outer ring air passage from the outer ring mixing cavity is uniform, the flame combustion height of the outer ring fire cover is uniform, the bottom of a cooking appliance on the gas stove is heated uniformly, and the cooking quality is effectively improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of an explosive structure according to the present invention;
Fig. 3 is a front view (no fire cover) of the present invention;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;
fig. 5 is a perspective view of one view of the present invention (no fire cover);
fig. 6 is a perspective view of another view of the present invention (no fire cover);
FIG. 7 is a schematic view of the structure of the upper cover;
fig. 8 is a front view of the upper cover;
FIG. 9 is a sectional view taken in the direction B-B of FIG. 8;
FIG. 10 is a top view of the upper cover;
FIG. 11 is a schematic view of the structure at the base;
FIG. 12 is a schematic view of the structure at the lower base;
FIG. 13 is a top view of FIG. 12;
FIG. 14 is a schematic view of the structure of the upper base;
fig. 15 is a schematic structural view of an intake pipe;
FIG. 16 is a schematic view of the assembly of the upper cover and the outer ring fire cover;
FIG. 17 is a top view of FIG. 16;
FIG. 18 is a schematic view of the outer ring fire cover;
FIG. 19 is an enlarged schematic view of the structure of I in FIG. 18;
FIG. 20 is a top view of the outer ring fire cover;
Fig. 21 is a bottom view of the outer ring fire cover.
Detailed Description
For a better understanding and implementation, the present invention is described in detail below with reference to the drawings.
As shown in fig. 1 to 21, a high-efficiency energy-gathering upper air inlet furnace end sequentially comprises a fire cover, an upper cover 3, a base and an air inlet pipe 7 from top to bottom; the fire cover comprises a central fire cover 1 and an outer ring fire cover 2; the upper cover comprises a plurality of outer ring air passages 31 and a central air passage 33; the outer ring air passage 31 is arranged corresponding to the outer ring fire cover 2; the central air passage 31 is arranged corresponding to the central fire cover 1; the base is mounted or placed on a table (not shown); a heat insulation pad 6 is arranged between the base and the table top.
The heat insulation pad 6 is arranged, so that the transfer of combustion heat to the table top is effectively reduced, the combustion heat concentration on the fire cover is effectively enhanced, the flame temperature is effectively improved, and the cooking quality is further improved.
The fixing and mounting modes of the heat insulation pad are not particularly limited, and the heat insulation pad can be selectively attached to the bottom of the base and can also be selectively fixed to the upper side of the air inlet pipe. When the heat insulation pad is fixed on the upper side of the air inlet pipe, the temperature rise of the air inlet pipe can be effectively avoided, so that the stable gas inflow is maintained, and the combustion quality of the whole furnace end is improved. If the heat insulation pad is not arranged, the temperature of the air inlet pipe is increased along with the combustion at the fire cover, and the corresponding air inflow in the air inlet pipe is reduced, so that the whole combustion quality is reduced.
Example 1
A primary mixing cavity 41 is formed between the base and the upper cover 3; the upper cover 3 includes at least one layer of primary air introduction ports 34 and at least one layer of secondary air introduction ports 35; the primary air introduction port 34 communicates with the primary mixing chamber 41.
The primary air inlet 34 and the secondary air inlet 35 are both provided with multiple layers, so that the height of the whole upper cover can be effectively increased, the distance between the fire cover and the table top is increased, the transfer of combustion heat to the table top is reduced, and the energy gathering effect is realized; meanwhile, the multi-layer primary air inlet or secondary air inlet is arranged, so that sufficient air can be provided for gas mixing, gas combustion is more sufficient, and combustion efficiency is further effectively improved.
A partition plate 32 is provided between the primary air introduction port 34 and the secondary air introduction port 35; the primary air introduction ports 34 are uniformly distributed in the circumferential direction of the upper cover 3; the secondary air introduction ports 35 are uniformly distributed in the circumferential direction of the upper cover.
A separator 32 is provided to effectively prevent air channeling of the primary mixing chamber and the combustion chamber.
The primary air inlet and the secondary air inlet are uniformly distributed on the fire cover, uniform air can be provided, gas can be fully mixed, the gas outlet pressure of each nozzle (fire hole) is uniform, the length of combustion flame is uniform, and the combustion temperature distribution of each place on the fire cover is uniform.
Example two
The base comprises an upper base 4 and a lower base 5; the upper base 4 and the upper cover 3 form a primary mixing cavity 41 and an outer ring mixing cavity 42; the outer ring mixing chamber 42 is communicated with the outer ring air passage 31; the air inlet pipe 7 comprises a central air inlet pipe 71 and at least two outer ring air inlet pipes 72; the central air inlet pipe 71 and the outer ring air inlet pipe 72 are both arranged in the primary mixing cavity 41; the central air inlet pipe 71 is arranged corresponding to the central air passage 33; the outer ring air inlet pipe 72 is disposed corresponding to the annular flow passage 51, and the annular flow passage 51 is communicated with the outer ring mixing chamber 42.
The annular flow passage 51 is arranged, so that the mixing time of the fuel gas and the air can be effectively prolonged, the fuel gas and the air are fully mixed, and the combustion quality is effectively improved; meanwhile, the mixing time is prolonged, so that the gas mixture has enough time to absorb a part of combustion heat (namely, the part of the combustion heat which is downwards transferred), thereby improving the temperature of the gas entering the outer ring fire cover 2 and further improving the combustion quality.
In order to better prolong the residence time of the fuel gas, the air outlets 511 of the annular flow channels are tangentially connected to the outer annular mixing chamber 42.
In order to make the pressure of the fuel gas entering the outer ring air flue of the outer ring mixing cavity uniform, the outer ring air inlet pipe 72 is provided with two; the air outlet of the outer ring air inlet pipe is horizontally arranged; the annular flow passage 51 is horizontally arranged on the base.
In order to increase the amount of primary air introduced, the air inlet of the annular flow passage is an enlarged structure 512; an open cavity 52 is arranged between the expansion structure 512 and the air outlet of the outer ring air inlet pipe; the open cavity 52 communicates with the primary mixing chamber 41.
As shown in fig. 11, the annular flow passage is spiral, and at this time, after the mixed gas is guided by the annular flow passage, the mixed gas has a spiral rising flow velocity, so that the residence time of the gas is effectively prolonged, and the gas and the air are fully mixed; the annular flow passage is embodied in the structure of the outer ring mixing cavity: the top of the second annular runner shell gradually rises along with the extension of the air outlet of the first annular runner until reaching the air outlet of the second annular runner. The structure can fully utilize the diversion of the annular flow passage to avoid the loss of kinetic energy of the gas mixture in the flowing process.
In order to ensure that the pressure of the fuel gas entering the outer ring air flue of the outer ring mixing cavity is consistent, the air outlets of the annular flow channels are uniformly distributed on the base, and the air outlets of the annular flow channels are consistent along the circumferential direction of the base; the height of the air outlet of the annular flow passage on the base is uniform.
It should be noted that the upper base and the lower base may be integrally formed or may be formed by combination.
When combined, as shown in fig. 12 and 13, the primary mixing chamber and the outer ring mixing chamber are isolated from each other, for example, by means of an inner seal ring 53 and a baffle plate combination; the outer ring mixing chamber and the external environment are isolated from each other, such as by means of an outer seal ring 54 and an outer baffle combination.
Example III
The outer ring fire cover 2 is arranged or placed on the upper cover 3; the inner side of the outer ring fire cover is provided with a plurality of rhombus structures 22, and the rhombus structures 22 are uniformly distributed on the inner side of the outer ring fire cover 2; an inclined reflecting surface 21 is arranged between the rhombohedron structures.
Wherein, in order to reduce the height and the manufacturing cost of the outer ring fire cover, the rhombus structure is half of the rhombus.
In order to enhance the energy collecting effect of the inclined reflecting surface, the included angle between the inclined reflecting surface and the horizontal plane is 35-45 degrees.
Wherein, the two surfaces of the rhombus structure close to the central fire cover are respectively provided with an inner fire hole 221, and the inner fire holes are communicated with the outer ring air passage. The combustion efficiency of outer ring fire lid is promoted effectively, is equipped with the secondary air simultaneously and draws the entry and can provide sufficient air.
The rhombus structure can effectively avoid that combustion heat is accumulated at a certain point in the center of the pot body to be heated, so that the whole pot body is heated unevenly; meanwhile, the included angle between the two surfaces of the rhombus structure near the center fire cover is controlled to be 90-170 degrees, and the two surfaces collect combustion heat at the periphery of the center of the pot body, so that the whole pot body is heated uniformly and has high heating temperature.
The inclined reflecting surfaces comprise first reflecting inclined surfaces and second reflecting inclined surfaces, two second reflecting inclined surfaces are arranged on two sides of each first reflecting inclined surface, and the second reflecting inclined surfaces are connected to the rhombus structure.
Compared with the prior art, the heat insulation pad is arranged, so that the transfer of combustion heat at the fire cover to a table top (the table top is generally made of materials such as metal and the like and has high heat conductivity coefficient) is effectively reduced, the heat insulation and energy accumulation effects are realized, the combustion temperature is improved, and the energy is saved; the upper cover comprises at least one layer of primary air inlet and at least one layer of secondary air inlet, so that the distance between the fire cover and the table top is effectively increased, the energy loss is reduced, and meanwhile, a primary mixing cavity and an outer ring mixing cavity or an outer ring air passage have sufficient space for preheating, so that the utilization rate of combustion heat is improved; the annular flow passage is arranged, the gas mixture enters the outer ring mixing cavity in a vortex manner, so that the mixing time of the gas mixture is effectively prolonged, the gas and the air are fully mixed, and the combustion efficiency is effectively improved; and meanwhile, more than 2 annular flow passages are arranged, so that the pressure of the gas mixture entering each outer ring air passage from the outer ring mixing cavity is uniform, the flame combustion height of the outer ring fire cover is uniform, the bottom of a cooking appliance on the gas stove is heated uniformly, and the cooking quality is effectively improved.
The present invention is not limited to the above-described embodiments, but, if various modifications or variations of the present invention are not departing from the spirit and scope of the present invention, the present invention is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.
Claims (6)
1. An efficient energy-gathering upper air inlet furnace end is characterized in that: the fire cover comprises a fire cover, an upper cover, a base and an air inlet pipe from top to bottom in sequence;
The fire cover comprises a central fire cover and an outer ring fire cover;
The upper cover comprises a plurality of outer ring air passages and a central air passage;
The outer ring air passage is arranged corresponding to the outer ring fire cover; the central air passage is arranged corresponding to the central fire cover;
The base is arranged or placed on the table top;
a heat insulation pad is arranged between the base and the table top;
the base comprises an upper base and a lower base;
the upper base and the upper cover form a primary mixing cavity and an outer ring mixing cavity;
the upper cover comprises at least one layer of primary air inlet and at least one layer of secondary air inlet;
the primary air inlet is communicated with the primary mixing cavity;
the outer ring mixing cavity is communicated with the outer ring air passage;
The air inlet pipe comprises a central air inlet pipe and at least two outer ring air inlet pipes;
the central air inlet pipe and the outer ring air inlet pipe are both arranged in the primary mixing cavity;
The central air inlet pipe is arranged corresponding to the central air passage;
The outer ring air inlet pipe is correspondingly arranged with an annular flow passage, and the annular flow passage is communicated with the outer ring mixing cavity;
the annular flow passage is spiral, and the air outlet of the annular flow passage is tangentially communicated with the outer annular mixing cavity;
the heights of the air outlets of the annular flow channels on the base are consistent;
the air inlet of the annular flow passage is of an enlarged structure;
An open type cavity is arranged between the expansion type structure and the air outlet of the outer ring air inlet pipe;
the open type cavity is communicated with the primary mixing cavity.
2. The high efficiency energy concentrating upper air intake burner of claim 1, wherein: the heat insulation pad is fixed on the air inlet pipe; or the heat insulation pad is fixed at the bottom of the base.
3. The high efficiency energy concentrating upper air intake burner of claim 1, wherein: a separation plate is arranged between the primary air inlet and the secondary air inlet;
the primary air inlets are uniformly distributed in the circumferential direction of the upper cover;
the secondary air introduction ports are uniformly distributed in the circumferential direction of the upper cover.
4. The high efficiency energy concentrating upper air intake burner of claim 1, wherein: the outer ring air inlet pipe is provided with two air inlet pipes;
the air outlet of the outer ring air inlet pipe is horizontally arranged;
the annular flow passage is horizontally arranged on the base.
5. The high efficiency energy concentrating upper air intake burner of claim 1, wherein: the outer ring fire cover is arranged or placed on the upper cover;
The inner side of the outer ring fire cover is provided with a plurality of rhombus structures which are uniformly distributed on the inner side of the outer ring fire cover;
An inclined reflecting surface is arranged between the rhombohedron structures.
6. The high efficiency energy concentrating upper air intake burner of claim 5, wherein: and the two surfaces of the rhombus structure close to the central fire cover are respectively provided with an inner fire hole, and the inner fire holes are communicated with the outer ring air passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567753.3A CN110285449B (en) | 2019-06-27 | 2019-06-27 | High-efficiency energy-gathering upper air inlet furnace end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567753.3A CN110285449B (en) | 2019-06-27 | 2019-06-27 | High-efficiency energy-gathering upper air inlet furnace end |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110285449A CN110285449A (en) | 2019-09-27 |
| CN110285449B true CN110285449B (en) | 2024-07-26 |
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ID=68019283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910567753.3A Active CN110285449B (en) | 2019-06-27 | 2019-06-27 | High-efficiency energy-gathering upper air inlet furnace end |
Country Status (1)
| Country | Link |
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| CN (1) | CN110285449B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205579658U (en) * | 2016-03-09 | 2016-09-14 | 九阳股份有限公司 | Gas stove |
| CN207378873U (en) * | 2017-10-06 | 2018-05-18 | 高硕� | A kind of gas furnace efficient energy-collecting thermal insulating disc |
| CN108613183A (en) * | 2018-06-04 | 2018-10-02 | 曾祥林 | A kind of concealed cooker burner of ejector pipe |
| CN210179623U (en) * | 2019-06-27 | 2020-03-24 | 中山市新众发金属制品有限公司 | High-efficient energy-gathering furnace end |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITAN20120036A1 (en) * | 2011-04-19 | 2012-10-20 | Somipress Societa Metalli Iniett Ati S P A | GAS STOVE WITH FLAME TOWARDS THE INSIDE. |
| CN108266730B (en) * | 2018-03-07 | 2024-09-20 | 杭州老板电器股份有限公司 | High-efficiency energy-saving fire cover and burner for gas stove |
-
2019
- 2019-06-27 CN CN201910567753.3A patent/CN110285449B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205579658U (en) * | 2016-03-09 | 2016-09-14 | 九阳股份有限公司 | Gas stove |
| CN207378873U (en) * | 2017-10-06 | 2018-05-18 | 高硕� | A kind of gas furnace efficient energy-collecting thermal insulating disc |
| CN108613183A (en) * | 2018-06-04 | 2018-10-02 | 曾祥林 | A kind of concealed cooker burner of ejector pipe |
| CN210179623U (en) * | 2019-06-27 | 2020-03-24 | 中山市新众发金属制品有限公司 | High-efficient energy-gathering furnace end |
Also Published As
| Publication number | Publication date |
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| CN110285449A (en) | 2019-09-27 |
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