CN207334729U - A kind of burner fire lid, low flame burner and gas-cooker - Google Patents

A kind of burner fire lid, low flame burner and gas-cooker Download PDF

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Publication number
CN207334729U
CN207334729U CN201720913896.1U CN201720913896U CN207334729U CN 207334729 U CN207334729 U CN 207334729U CN 201720913896 U CN201720913896 U CN 201720913896U CN 207334729 U CN207334729 U CN 207334729U
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China
Prior art keywords
burner
fire cover
combustion
fire
energy
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CN201720913896.1U
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周佳强
王维亮
邓鹏飞
晁宇辉
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Qingdao Haier Wisdom Kitchen Appliance Co Ltd
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Qingdao Haier Wisdom Kitchen Appliance Co Ltd
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Abstract

A kind of burner fire lid, low flame burner and gas-cooker are the utility model is related to, there is the radially distributed concave, convex structure in sector on fire cover upper surface, concave, convex structure is staggered, and convex portions are provided with fire output hole.Low flame burner includes energy-gathering ring cooker racks and burner body, energy-gathering ring cooker racks is arranged on the periphery of burner body, the burner body includes burner and combustion-supporting fire cover, and the combustion-supporting fire cover is installed on the top of burner, the fire output hole for being provided with direct-injection is covered in the burning-assistant fire.The utility model high combustion efficiency, thermic load is big, realizes closely point-to-point high efficient heat exchanging, add heat exchange efficiency, energy-efficient to burner, environmentally protective etc. indices requirement is fully met, and high flame can be provided, is particularly suitable for Chinese meal cooking.

Description

A kind of burner fire lid, low flame burner and gas-cooker
Technical field
It the utility model is related to a kind of gas-cooker, more particularly to a kind of can realize close to complete on gas-cooker The low flame burner and burner fire lid of premix.
Background technology
The existing household cooking utensil burner of in the market uses two types substantially, and one kind is the partially premixed burning of air suspended type Device, another kind are exactly complete pre-mixing type far infrared burner.Wherein, the partially premixed burner of air suspended type has stability It is good, firepower is big, heat load adjustment than it is high the advantages that, but due to being sprayed from the partially premixed burner fire hole of existing air suspended type The flame gone out is longer, while flame includes internal flame and flame envelope two parts, asks there are flame combustion is insufficient, heat loss is larger Topic, and the partially premixed burner of this air suspended type is subject to that heat convection efficiency is low, open type calory burning is lost in probability and adds Greatly, flame needs the conditionalities such as Means of Secondary Air Supplement, and the thermal efficiency is relatively low, between can only achieve 50%--65%, have by The combustion gas of nearly half is wasted.The partially premixed burner of air suspended type due to being restricted be subject to own combustion mode, Rethink that to increase substantially the thermal efficiency highly difficult.It is left that the complete pre-mixing type far infrared burner thermal efficiency can be easily reached 70% It is right while there is the extremely low advantage of exhaust emissions amount, but this heating by infrared radiation combustion system has that stability is poor, heat Load is small, heat flow is adjusted than low shortcoming, is also exactly that far infrared burner belongs to flameless combustion, infrared kitchen range burning Device does not have flare yet unsuitable Chinese meal cooking custom, this is also that to cause infrared kitchen range not obtained in household cooker industry general One of and the reason for.
In order to improve the efficiency grade of atmosphere type combustion range, existing a part of product by force reduces cooker racks, shortens Fire hole is to the distance in the bottom of a pan, and the length of flame sprayed from burner fire hole is constant, does not reach raising heat transfer rate not only so, The heat exchange efficiency of burner is reduced on the contrary.Some product increases energy-gathering ring pot between burner periphery and the bottom of a pan Frame, a kind of semi-enclosed combustion chamber is formd between burner, energy-gathering ring cooker racks and heat exchange thing, energy-gathering ring cooker racks play it is heat-insulated and The effect of insulation, wants by reducing the heat losses probability in combustion chamber, increase heat in the residence time in the bottom of a pan, raising burning The temperature of intracavitary improves the heat exchange efficiency of burner, but this has a problem that, i.e., from the partially premixed burner of air suspended type The flame sprayed in fire hole needs Means of Secondary Air Supplement, and energy-gathering ring cooker racks seriously blocks the oxygen of the combustion chamber external space to combustion The flame for burning intracavitary carries out Means of Secondary Air Supplement, causes burner can not carry out normal combustion reaction.
Utility model content
The main dissatisfied technical problem certainly of the utility model is to provide a kind of burner that can increase substantially efficiency of combustion Fire cover.
The utility model another mainly solving the technical problems that, there is provided one kind can increase substantially efficiency of combustion, And high flame can be provided, it is adapted to the low flame burner of Chinese meal cooking, while provide a kind of combustion gas for being provided with the low flame burner Stove.
To achieve the above object, the technical solution of the utility model is:
A kind of burner fire lid, on an upper with radially distributed in fan-shaped concave, convex structure, concave, convex structure It is staggered, convex portions is provided with fire output hole.
Further, fire cover includes at least interior ring fire cover and external ring fire cover, and the interior ring fire cover and external ring fire cover are integrated knot Structure, has central through hole at the center of interior ring fire cover;Or, the interior ring fire cover and external ring fire cover are Split type structure, described interior The centre of ring fire cover and external ring fire cover has circular passage.
Further, the material of burner fire lid is ceramic wafer, stainless steel plate, metal dust pressboard, ceramic on metal powder One kind in last metallurgy pressboard.
Another technical solution of the utility model is:
A kind of low flame burner, including energy-gathering ring cooker racks and burner body, energy-gathering ring cooker racks are arranged on burner body Periphery, the burner body includes burner and combustion-supporting fire cover, and the combustion-supporting fire cover is installed on the top of burner, is helped described The fire output hole of direct-injection is provided with combustion fire cover.
Further, there is the radially distributed concave, convex structure in sector, concave, convex on the upper surface of the combustion-supporting fire cover Structure is staggered, and the fire output hole is set in convex portions.
Further, the material of the combustion-supporting fire cover is ceramic wafer, stainless steel plate, metal dust pressboard, ceramic on metal One kind in powder metallurgy pressing plate.
Further, primary air ratio 0.9≤a of value < 1 of combustion gas.
Further, the combustion-supporting fire cover includes at least interior ring fire cover and external ring fire cover, the interior ring fire cover and external ring fire cover It is structure as a whole, there is central through hole at the center of interior ring fire cover;Or, the interior ring fire cover and external ring fire cover are Split type structure, There is circular passage in the centre of the interior ring fire cover and external ring fire cover.
Further, the energy-gathering ring cooker racks is made of the pot leg at top, middle cumulative loop section and the footing of lower part.
Further, it is provided with least one smoke outlet in the energy-gathering ring cooker racks.
Further, the energy-gathering ring cooker racks is by having heat the material of absorption and radiation function to be made.
Further, the material of the energy-gathering ring cooker racks is ceramic wafer, stainless steel plate, metal dust pressboard, Metal Substrate pottery One kind in porcelain powder metallurgy pressing plate.
Another technical solution of the utility model is:
A kind of gas-cooker, is provided with low flame burner as described above.
In conclusion a kind of burner fire lid provided by the utility model, low flame burner and gas-cooker, with the prior art Compare, have the following advantages that:
(1) burner fire lid of the utility model is not only opposite to shorten pot by using the structure design of bumps staggeredly The distance between bottom and fire output hole, coordinate with low flame and greatly improve efficiency of combustion, also utilize the zanjon guiding burning when institute of concave surface The tail gas downlink of generation is discharged with outside, and the exhaust emissions produced in guarantee combustion process is smooth, also further improves combustion Burn efficiency.
(2) burner of the utility model, solves the skill that fully-premixed low flame combustion system is realized on household cooker Art problem, high combustion efficiency, thermic load is big, it can be achieved that closely point-to-point high efficient heat exchanging, adds heat exchange efficiency, and burning During the CO that produces and NOx it is extremely low, fully meeting energy-efficient to burner, environmentally protective etc. indices will Ask.And the burner can provide high flame, it is particularly suitable for Chinese meal cooking.
Brief description of the drawings
Fig. 1 is the utility model burning fire cover structure diagram;
Fig. 2 is the utility model burner structure schematic diagram;
Fig. 3 is the utility model burner structure explosive view;
Fig. 4 is the utility model burner structure sectional view.
As shown in Figures 1 to 4, fire cover 1, interior ring fire cover 1a, external ring fire cover 1b, concave surface 2, convex surface 3, fire output hole 4, center leads to Hole 5, energy-gathering ring cooker racks 6, burner 7, ignition electrode 8, inductive needle 9, inner ring combustion gas mix gas chamber 10, and outer shroud combustion gas mixes gas chamber 11, Inner ring ejector pipe 12, outer shroud ejector pipe 13, partition plate 14, lateral wall 15, inner ring fire hole 16, outer shroud fire hole 17, pot leg 18, cumulative Ring 19, footing 20, smoke outlet 21, combustion chamber 22.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings:
Embodiment one:
As shown in Figure 1, a kind of burner fire lid is provided in the present embodiment, the overall structure in the form of annular discs of fire cover 1.In fire cover With radially distributed substantially in fan-shaped concave, convex structure, including concave surface 2 and convex surface 3 on 1 upper surface, in the portion on convex surface 3 Several fire output holes 4 for producing upward direct-injection flame are provided with point.
In order to ensure that cookware is heated evenly, concave surface 2 and convex surface 3 are staggered.Wherein, the surface area on concave surface 2 and convex surface 3 can With identical, can not also with, it is necessary to according to the height of flame, total gas output, the gross area of fire output hole 4, fire output hole 4 diameter Determine.In the present embodiment, preferably concave surface 2 is identical with the surface area on convex surface 3, ensures by way of increasing by 4 diameter of fire output hole The gross area of fire hole 4 is constant (situation that fire cover upper surface is all covered relative to fire output hole), that is, ensures the outlet of combustion gas Measure constant, the diameter of fire output hole 4 goes out fire between fully premixed infrared burner and partly-premixed atmospheric burner Between bore dia, required low flame (being highly the flame of below 16mm) is produced in favor of realizing.
Distance of the flame from fire output hole 4 to the bottom of a pan is comparatively more short better, and optimum state is from burner fire output hole 4 The flame its length of middle ejection will match with the distance of fire output hole 4 to the bottom of a pan, when the length of flame sprayed from fire cover 1 compared with When short (low flame state), correspondingly need the distance of fire output hole 4 to the bottom of a pan accordingly to adjust short.In the present embodiment, fire output hole 4 is set Put on convex surface 3, i.e., it is opposite to shorten the distance between the bottom of a pan and fire output hole 4, and then realize and closely point-to-point efficiently change Heat, greatly improves heat exchange efficiency.The height on convex surface 3 can according to the height exactness of caused low flame, beneficial to fire output hole 4 The low flame sprayed highly coordinates.
The part of concave surface 2 can both be used as discharge flue, zanjon guiding tail gas downlink and outwards discharge using concave surface 2, The exhaust emissions produced in guarantee combustion process is smooth, and can be used as into oxygen passage, is fired beneficial to combustion gas on the surface of fire cover 1 Burn, further improve efficiency of combustion.
Fire cover 1 can be an entirety, but for ease of control, achieve the purpose that it is energy saving, fire cover 1 by interior ring fire cover 1a and External ring fire cover 1b is formed, and fire cover 1 can also set three ring fire covers or four ring fire covers etc..In the present embodiment, interior ring fire cover 1a and outer Ring fire cover 1b is structure as a whole, the fire output hole 4 on each convex surface 3, in it is separated be divided into two parts, inner side for inner ring fire hole 16, outside for outer shroud fire hole 17, there is the central through hole 5 of up/down perforation at the center of interior ring fire cover 1a, in central through hole 5 Ignition electrode 8 and inductive needle 9 are installed.
In the present embodiment, the material of burner fire lid is preferably using the material with combustion aid function, such as in gas-fired infrared The ceramic wafer used in device, or thin stainless steel plate is used, such as it is processed into using the stainless sheet steel of 0.8mm -1.0mm thickness, Metal dust pressboard can also be used, wherein, metal dust can use siderochrome aluminium powder or copper powders, in addition can use Structure and the more excellent metallurgical pressboard in material metal based ceramic powder end of combustion-supporting performance.These combustion-supporting materials have had thermal velocity It hurry up, all there is preferable combustion-supporting effect to pre-mixing gas combustion, the activation energy of pre-mixing gas combustion combustion reaction can be effectively reduced, beneficial to reality Existing low flame combustion state.
Embodiment two:
Be with one difference of embodiment, interior ring fire cover 1a and external ring fire cover 1b be split structure, interior ring fire cover 1a It is separately mounted to external ring fire cover 1b on burner, interior ring fire cover 1a is a disc-shaped structure, and external ring fire cover 1b is a circular knot Structure, external ring fire cover 1b are sleeved on the outside of interior ring fire cover 1a, have a ring in the centre of interior ring fire cover 1a and external ring fire cover 1b Shape passage (not shown), ignition electrode 8 and inductive needle 9 are installed in the circular passage.
Embodiment three:
As shown in Figures 2 to 4, a kind of low flame burner, including energy-gathering ring cooker racks 6 and burner sheet are provided in the present embodiment Body, energy-gathering ring cooker racks 6 are arranged on the periphery of burner body, and burner body includes burner 7 and has the combustion-supporting of combustion-supporting effect Fire cover, combustion-supporting fire cover are installed on the top of burner 7, and the combustion-supporting fire cover is using the burning as described in embodiment one or embodiment two Device fire cover 1.
In the present embodiment, fire cover 1 includes interior ring fire cover 1a and external ring fire cover 1b, has on interior ring fire cover 1a in several Ring fire hole 16, has several outer shroud fire holes 17 on external ring fire cover 1b.Interior ring fire cover 1a and external ring fire cover 1b are integral formula Structure, the center of interior ring fire cover 1a have up/down perforation central through hole 5, ignition electrode 8 and inductive needle 9 lead to installed in center In hole 5.
Burner 7 mixes gas chamber 10 including inner ring combustion gas, outer shroud combustion gas mixes gas chamber 11, inner ring ejector pipe 12, outer shroud injection Pipe 13.It is the circular ring shape chamber for being sleeved on the outside of central through hole 5 that inner ring combustion gas, which mixes gas chamber 10, and outer shroud combustion gas mixes gas chamber 11 as set The circular ring shape chamber in the outside of gas chamber 10 is mixed in inner ring combustion gas.Outer shroud ejector pipe 13 penetrates the lateral wall 15 of burner 7 and outer shroud fires Qi Hun gas chamber 11 connects, and inner ring ejector pipe 12 is also fed through inner ring combustion gas and mixes air cavity while lateral wall 15 of burner 7 are penetrated The partition plate 14 that room 10 and outer shroud combustion gas are mixed between gas chamber 11 mixes gas chamber 10 with inner ring combustion gas and connects.Interior ring fire cover 1a and outer shroud Fire cover 1b mixes gas chamber 10 installed in inner ring combustion gas by sealing installation structure respectively and outer shroud combustion gas mixes the top of gas chamber 11. The part of disconnection between interior ring fire cover 1a and external ring fire cover 1b takes to put mixes gas chamber 10 and outer shroud combustion gas mixes gas in inner ring combustion gas The top of partition plate 14 between chamber 11.
Energy-gathering ring cooker racks 6 is made of the pot leg 18 at top, middle energy-gathering ring 19 and the footing 20 of lower part.Pot leg 18 Circumferentially arranged four, pot leg 18 is welded and fixed with middle energy-gathering ring 19, is stretched from the top of energy-gathering ring 19 to central horizontal Go out, cookware is placed on four pot legs 18, and overall structure is very simple, and easy to process.The pot stretched out to horizontal direction Leg 18 is suitable for flat cookware, in addition the cookware for sharp bottom, it is necessary to place auxiliary stand again in energy-gathering ring cooker racks 6.
Energy-gathering ring 19 includes the part of fan-shaped annulus and the cylindric part of lower section of top, and fire cover 1 is installed on lower section Cylindric centre.In the present embodiment, the concave surface 2 corresponded in energy-gathering ring cooker racks 6 in combustion-supporting fire cover 1 is provided with smoke outlet 21, the part of corresponding each concave surface 2 sets a smoke outlet 21, and smoke outlet 21 is opened in the cylindrical portion of 19 lower part of energy-gathering ring On side wall, smoke outlet 21 is the opening of strip, is flowed beneficial to gas, and the tail gas produced in combustion process can the row of passing through Mouth 21 is discharged.
Due to being provided with energy-gathering ring cooker racks 6 in the periphery of burning body, make fire cover 1, energy-gathering ring cooker racks 6 and the heat exchange thing the bottom of a pan Between form a semi-enclosed combustion chamber 22, energy-gathering ring cooker racks 6 plays combustion chamber 22 heat insulation and preservation effect, reduces combustion chamber 22 heat losses probability, is substantially improved the temperature of combustion chamber 22, promotes burner heat transfer rate to further improve, complete to realize Premix combustion creates a hot environment, can reduce the activation energy of pre-mixing gas combustion combustion reaction, this is household cooker air The low flame burner of formula realizes the essential condition of fully-premixed low flame combustion system.
In the present embodiment, the primary air ratio value of combustion gas is controlled in partly-premixed atmospheric burning type and fully premixed infrared Between the primary air ratio of line burning, more preferably 0.9≤a of primary air ratio value < 1.1, so make combustion gas be reached in burning To fully premixed state is approached, the flame that fire output hole 4 sprays is in the state of low flame, but will not be the state of nonflame, Meets the needs of Chinese meal cooking.Primary air ratio 0.9≤a of value < 1.1 of combustion gas are additionally, since, approach fully premixed shape State, the flame sprayed from fire output hole 4 do not have inside and outside flame, it is not necessary to which Means of Secondary Air Supplement needs minimal amount of auxiliary air Supply, therefore, the burning of combustion gas is not interfered with the energy-gathering ring cooker racks 6 that periphery is set.
Low flame burner provided in this embodiment, controls primary air ratio 0.9≤a of value < 1.1 of combustion gas, combustion gas is existed Reach during burning and approach fully premixed state.It is initial in burning meanwhile fire cover 1 is using combustion-supporting fire cover made of combustion-supporting material I.e. can be rubescent rapidly, play the role of auxiliary combustion.And energy-gathering ring cooker racks 6 is set by the periphery in fire cover 1, in fire cover 1, gather A semi-enclosed combustion chamber 22 can be formed between ring cooker racks 6 and the heat exchange thing the bottom of a pan, combustion chamber 22 is risen using energy-gathering ring cooker racks 6 To heat insulation and preservation effect, the heat losses probability of combustion chamber 22 is reduced, the combustion reaction temperature of combustion chamber 22 is substantially improved, promoted Further improved into burner heat transfer rate.Under the collective effect of three above condition, low flame combustion state is realized, that is, is realized The low flame burner of household cooker air suspended type realizes fully-premixed low flame combustion system.Meanwhile by controlling convex surface 3 in fire cover 1 The distance between height the control the bottom of a pan and fire output hole 4 highly match with low flame, realization closely point-to-point high efficient heat exchanging, into One step is added significantly to the heat exchange efficiency of burner, and the CO and NOx that produce in combustion are extremely low.
Low flame burner provided in this embodiment, the thermal efficiency is high, exhaust emissions is low, thermic load is big, fully meets to burning The indices requirement that device is energy-efficient, environmentally protective etc..Because the primary air ratio of the burner approaches completely pre- Mixed state, flame no longer need Means of Secondary Air Supplement in burning or need minimal amount of Means of Secondary Air Supplement, it is possible to Energy-gathering ring cooker racks 6 is set in burner body periphery, by adding energy-gathering ring cooker racks 6 in burner body periphery, improves burning The combustion reaction temperature of chamber 22, and then promote burner heat exchange efficiency to improve.At the same time it can also provide high flame, it is particularly suitable for Chinese meal cooking.
Example IV:
It is with three difference of embodiment, in order to further improve the efficiency of combustion of burner, in fire cover 1 using combustion-supporting Outside material, energy-gathering ring cooker racks 6 is also used by having the material of absorption and radiation function to be made to heat, preferably energy-gathering ring cooker racks 6 use the material identical with burner fire lid, the ceramic wafer such as used in infrared burner, or use thin stainless steel Plate, can also be using the more excellent metallurgical pressure in material metal based ceramic powder end of metal dust pressboard and structure and combustion-supporting performance Making sheet.
In burning, energy-gathering ring cooker racks 6 also plays combustion-supporting effect when realizing the effect of heat-insulation and heat-preservation, more has Beneficial to forming low flame combustion state, therefore it also can further improve burner combustion efficiency.
Embodiment five:
A kind of gas-cooker, including housing, panel, pre-mixing gas combustion valve, controlling switch, wind turbine and burner as described above Deng.
As described above, the plan content with reference to given by attached drawing, can derive similar technical solution.In every case it is not de- From the content of technical solutions of the utility model, above example is made according to the technical essence of the utility model any simple Modification, equivalent variations and modification, in the range of still falling within technical solutions of the utility model.

Claims (13)

  1. A kind of 1. burner fire lid, it is characterised in that:There is the radially distributed concave, convex structure in sector on an upper, Concave, convex structure is staggered, and convex portions are provided with fire output hole.
  2. A kind of 2. burner fire lid according to claim 1, it is characterised in that:Fire cover includes at least interior ring fire cover and outer shroud Fire cover, the interior ring fire cover and external ring fire cover are structure as a whole, and have central through hole at the center of interior ring fire cover;It is or, described interior Ring fire cover and external ring fire cover are Split type structure, have circular passage in the centre of the interior ring fire cover and external ring fire cover.
  3. A kind of 3. burner fire lid according to claim 1, it is characterised in that:The material of burner fire lid for ceramic wafer, One kind in stainless steel plate, metal dust pressboard, ceramic on metal powder metallurgy pressing plate.
  4. A kind of 4. low flame burner, it is characterised in that:Including energy-gathering ring cooker racks and burner body, energy-gathering ring cooker racks is arranged on combustion The periphery of burner body, the burner body include burner and combustion-supporting fire cover, and the combustion-supporting fire cover is installed on the top of burner, The fire output hole for being provided with direct-injection is covered in the burning-assistant fire.
  5. A kind of 5. low flame burner according to claim 4, it is characterised in that:Have on the upper surface of the combustion-supporting fire cover Radially distributed is staggered in fan-shaped concave, convex structure, concave, convex structure, and the fire output hole is set in convex portions.
  6. A kind of 6. low flame burner according to claim 4, it is characterised in that:The material of the combustion-supporting fire cover is ceramics One kind in plate, stainless steel plate, metal dust pressboard, ceramic on metal powder metallurgy pressing plate.
  7. A kind of 7. low flame burner according to claim 4, it is characterised in that:0.9≤a of primary air ratio value of combustion gas < 1.
  8. A kind of 8. low flame burner according to claim 4, it is characterised in that:The combustion-supporting fire cover includes at least interior ring fire Lid and external ring fire cover, the interior ring fire cover and external ring fire cover are structure as a whole, and have central through hole at the center of interior ring fire cover; Or, the interior ring fire cover and external ring fire cover are Split type structure, in the centre of the interior ring fire cover and external ring fire cover there is annular to lead to Road.
  9. A kind of 9. low flame burner according to claim 4, it is characterised in that:The energy-gathering ring cooker racks by top pot branch The footing composition of foot, middle cumulative loop section and lower part.
  10. A kind of 10. low flame burner according to claim 9, it is characterised in that:It is provided with the energy-gathering ring cooker racks At least one smoke outlet.
  11. A kind of 11. low flame burner according to claim 4, it is characterised in that:The energy-gathering ring cooker racks is by having heat The material for having absorption and radiation function is made.
  12. A kind of 12. low flame burner according to claim 11, it is characterised in that:The material of the energy-gathering ring cooker racks is pottery One kind in porcelain plate, stainless steel plate, metal dust pressboard, ceramic on metal powder metallurgy pressing plate.
  13. A kind of 13. gas-cooker, it is characterised in that:Installation flame burner low just like claim 4-12 any one of them.
CN201720913896.1U 2017-07-26 2017-07-26 A kind of burner fire lid, low flame burner and gas-cooker Active CN207334729U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720913896.1U CN207334729U (en) 2017-07-26 2017-07-26 A kind of burner fire lid, low flame burner and gas-cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720913896.1U CN207334729U (en) 2017-07-26 2017-07-26 A kind of burner fire lid, low flame burner and gas-cooker

Publications (1)

Publication Number Publication Date
CN207334729U true CN207334729U (en) 2018-05-08

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Application Number Title Priority Date Filing Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109114599A (en) * 2018-09-17 2019-01-01 刘洪瑞 A kind of cumulative component of gas-cooker
CN110566954A (en) * 2019-10-10 2019-12-13 宁波方太厨具有限公司 Stove burner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109114599A (en) * 2018-09-17 2019-01-01 刘洪瑞 A kind of cumulative component of gas-cooker
CN110566954A (en) * 2019-10-10 2019-12-13 宁波方太厨具有限公司 Stove burner

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