CN102183016A - Combustor assembly of multi-nozzle gas furnace for complete top air intake - Google Patents

Combustor assembly of multi-nozzle gas furnace for complete top air intake Download PDF

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Publication number
CN102183016A
CN102183016A CN2011100409039A CN201110040903A CN102183016A CN 102183016 A CN102183016 A CN 102183016A CN 2011100409039 A CN2011100409039 A CN 2011100409039A CN 201110040903 A CN201110040903 A CN 201110040903A CN 102183016 A CN102183016 A CN 102183016A
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CN
China
Prior art keywords
shroud
interior ring
premix barrel
nozzle
ring
Prior art date
Application number
CN2011100409039A
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Chinese (zh)
Inventor
孙云山
Original Assignee
孙云山
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Application filed by 孙云山 filed Critical 孙云山
Priority to CN2011100409039A priority Critical patent/CN102183016A/en
Publication of CN102183016A publication Critical patent/CN102183016A/en

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Abstract

The invention discloses a combustor assembly of a multi-nozzle gas furnace for complete top air intake, which comprises an outer ring fire cover, an inner ring fire cover, an upper cover and a base, wherein the head of an inner ring combustor and the head of an outer ring combustor are arranged at the upper end of an upper base cover, a primary combustion chamber is arranged between the outer ring fire cover and the head of the outer ring combustor, a secondary combustion chamber is arranged between the inner ring fire cover and the head of the inner ring combustor, the upper base cover covers the inner space of the base in a sealed manner to form a chamber, a primary air inlet is arranged between the upper base cover and the base and is communicated with the chamber, a secondary air inlet needed for the combustion of the secondary combustion chamber is also arranged at the outer circumference of the upper base cover, one inner ring injection premixing pipe, a plurality of outer ring injection premixing pipes, an inner ring nozzle and a plurality of outer ring nozzles are arranged in the chamber, the inner ring injection premixing pipe is communicated with the secondary combustion chamber, the plurality of outer ring injection premixing pipes are communicated with the primary combustion chamber, and the outer ring nozzles are in one-to-one correspondence with the respective outer ring injection premixing pipes. The invention aims at providing the combustor assembly of the multi-nozzle gas furnace for complete top air intake, which is characterized in independently adjusted inner nozzles and outer nozzles and uniform combustion.

Description

A kind of multiinjector, go up air inlet gas range burner assembly fully

Technical field

The present invention relates to a kind of burner for household gas range, particularly a kind of multiinjector, go up air inlet gas range burner assembly fully.

Background technology

Household gas range is divided into desk-top and embedded two big classes usually.Embedded burner mostly adopts two types: a kind of be upper inlet wind type burner, another kind of under the air intake burner.Last air intake burner for household gas range adopts the single injector structure mostly, and injector adopts vertical ejection structure, and therefore this burner only has a gas nozzle to bear all air feed loads, can not realize the independent regulation of inside and outside firepower.Adopt vertical injector structure in addition owing to be subjected to the restriction of built-in type cooker setting height(from bottom) in the cabinet, its injection part can not be oversize, so cause combustion gas and primary air incorporation time not enough, it is insufficient to burn, and the thermal efficiency is low, causes the power can not be too big.The another kind of burner for household gas range of air intake down adopts horizontal injector, and the burner of this structure has the following disadvantages: whole burner volume is big, and occupation space is many; And the required primary air that burns need enter the injector supply from the gas-cooker drain pan, need solve the primary air supply in the cabinet perforate or at the kitchen range panel cut out for embedded gas-cooker, bring inconvenience for like this global design of kitchen range and the global design in kitchen, moulding and outward appearance are all not attractive in appearance.

Summary of the invention

The present invention seeks in order to overcome the deficiencies in the prior art, provide a kind of in outer nozzle independent regulation, the uniform multiinjector that burns, go up air inlet gas range burner assembly fully.

Purpose of the present invention is achieved through the following technical solutions: a kind of multiinjector, go up air inlet gas range burner assembly fully, comprise external ring fire cover, interior ring fire lid, cup-shaped base, be provided with flap at the base openings end, the seat of honour covers end and is provided with interior ring burner head and outer shroud burner head, constitute main chamber between external ring fire cover and the outer shroud burner head, external ring fire cover or outer shroud burner head are provided with the outer shroud fire hole that communicates with main chamber; Constitute subsidiary combustion chamber between interior ring fire lid and the interior ring burner head, interior ring fire lid or interior ring burner head are provided with the interior ring fire hole that communicates with subsidiary combustion chamber, the space is formed a chamber by seat of honour cap seal lid back in the base, be provided with an air inlet that is communicated with chamber between last flap and the base, last flap excircle also is provided with for the required auxiliary air inlet of subsidiary combustion chamber burning; Be provided with a plurality of outer shroud injection premix barrel of encircling the injection premix barrel and communicate in one that communicates with subsidiary combustion chamber in the chamber with main chamber, and the interior ring spray mouth corresponding with interior ring injection premix barrel and a plurality of respectively with each outer shroud injection premix barrel outer shroud nozzle one to one, the mixed gas outlet of each outer shroud injection premix barrel communicates with main chamber, and the mixed gas outlet of interior ring injection premix barrel communicates with subsidiary combustion chamber.

The present invention has following characteristics: the flap excircle is provided with for the required auxiliary air inlet of subsidiary combustion chamber burning on the burner, and the suction of auxiliary air is the principle of the hot-air power of employing; An air inlet between last flap and the base is used for feeding chamber indoor interior ring injection premix barrel and the required primary air of a plurality of outer shroud injection premix barrel, the suction of primary air is the high pressure injection that adopts and the principle of negative pressure that forms: combustion gas sprays through nozzle, make and form negative pressure in the chamber, primary air enters in the chamber through an air inlet under the effect of external atmospheric pressure, the suction of burning injection primary air and series of programs such as replenish like this, can not carried out by influencing in the environment of external condition, and relatively stable unanimity; Body of heater communicates because chamber is got along well simultaneously, the hot-air that the furnace shell heat radiation is produced does not influence work of the present invention fully, moreover, and can not cause the housing distortion of stove and accessory in the present invention because the appearance of phenomenons such as the tempering that the variation of gas source condition causes can producing once in a while, detonation only takes place.

A kind of as mentioned above multiinjector, go up air inlet gas range burner assembly fully, it is characterized in that base is provided with two separate blast tubes, one blast tube is connected with each outer shroud nozzle, another blast tube is connected with interior ring spray mouth, like this, main chamber, subsidiary combustion chamber all have the corresponding feed path that independently burns, and the subsidiary combustion chamber work of can burning separately also can switch to main chamber, the work of subsidiary combustion chamber synchronousing combustion.

A kind of as mentioned above multiinjector, go up air inlet gas range burner assembly fully, ring spray mouth, outer shroud nozzle comprise nozzle body respectively in it is characterized in that, be provided with the air door adjustment sheet in the upper end of nozzle body, the air door adjustment sheet adopts with nozzle body and is threaded, and is provided with spring between nozzle body and air door adjustment sheet.By in chamber, being provided with interior ring spray mouth, the outer shroud nozzle of adjustable type, be convenient to the present invention can all can obtain the required ratio of best combustion operating mode under zones of different and various different gas source conditions primary air.

A kind of as mentioned above multiinjector, go up air inlet gas range burner assembly fully, ring injection premix barrel and outer shroud injection premix barrel are vertical in it is characterized in that, interior ring injection premix barrel and outer shroud injection premix barrel root are connected as a single entity with last flap respectively, reduce parts, reduce production costs.

A kind of as mentioned above multiinjector, go up air inlet gas range burner assembly fully, the ring spray mouth is positioned at the base center and upwards faces ring injection premix barrel in it is characterized in that, each outer shroud nozzle is the even distribution of center circumferential with interior ring spray mouth and upwards faces each outer shroud injection premix barrel one by one that interior ring spray mouth and outer shroud nozzlend are connected as a single entity with the base bottom respectively.Among the present invention, pairing three the outer shroud injection premix barrel of main chamber are used to accept the required pre-mixed imflammable gas that burns, three outer shroud nozzles upwards face corresponding outer shroud injection premix barrel respectively, because three outer shroud injection premix barrel are uniformly distributed along the circumference, make gaseous-pressure relative equilibrium in the main chamber inner region, main chamber just can not produce inclined to one side fire when burning work.

A kind of as mentioned above multiinjector, go up air inlet gas range burner assembly fully, it is characterized in that the outer shroud fire hole is a plurality of small through hole along circumference in the external ring fire cover bottom that gather, the ring fire hole is the two rows through hole along circumference in interior ring fire lid bottom that gathers in described, and last exhausting hole internal diameter is greater than following exhausting hole internal diameter.

The present invention has following advantage and effect with respect to prior art:

(1) the present invention adopts top air inlet structure, i.e. an oxygen supply of burner assembly (replenish air) is above the kitchen range panel, and 360 spend comprehensive oxygen supply, and the air abundance can not produce anoxic, keeps the burning of gas-cooker more abundant, low-carbon emission.

(2) the flap excircle is provided with for the required auxiliary air inlet of subsidiary combustion chamber burning on the burner, and the suction of auxiliary air is the principle of the hot-air power of employing; An air inlet between last flap and the base is used for feeding chamber indoor interior ring injection premix barrel and the required primary air of a plurality of outer shroud injection premix barrel, the suction of primary air is the principle of negative pressure that the high pressure injection of employing produces: burning gases spray through nozzle, make and form negative pressure in the chamber, primary air enters in the chamber through an air inlet under external atmosphere pressure, the suction of burning injection primary air and series of programs such as replenish like this, can not carried out by influencing in the environment of external condition, and relatively stable unanimity; Body of heater communicates because chamber is got along well simultaneously, the hot-air that the furnace shell heat radiation is produced does not influence work of the present invention fully, moreover, and can not cause the housing distortion of stove and accessory in the present invention because the appearance of phenomenons such as the tempering that the variation of gas source condition causes can producing once in a while, detonation only takes place.

(3) base is provided with two separate blast tubes, one blast tube is connected with each outer shroud nozzle, another blast tube is connected with interior ring spray mouth, like this, main chamber, subsidiary combustion chamber all have the corresponding feed path that independently burns, the subsidiary combustion chamber work of can burning separately also can switch to main chamber, the work of subsidiary combustion chamber synchronousing combustion.

(4) interior ring spray mouth or outer shroud nozzle comprise nozzle body, are provided with the air door adjustment sheet in the upper end of nozzle body, and the air door adjustment sheet adopts with nozzle body and is threaded, and is provided with spring between nozzle body and air door adjustment sheet.By in chamber, being provided with interior ring spray mouth, the outer shroud nozzle of adjustable type, be convenient to the present invention can all can obtain the required ratio of best combustion operating mode under zones of different and various different gas source conditions gaseous mixture, feasible burning is more abundant, thereby energy-saving and environmental protection more reduce noxious gas emission.

(5) ring injection premix barrel and outer shroud injection premix barrel are vertical in, interior ring injection premix barrel and outer shroud injection premix barrel root are connected as a single entity with last flap respectively, interior ring spray mouth and outer shroud nozzlend are connected as a single entity with the base bottom respectively, reduce parts, reduce production costs.

(6) among the present invention, pairing three the outer shroud injection premix barrel of main chamber are used to accept the required pre-mixed imflammable gas that burns, three outer shroud nozzles upwards face corresponding outer shroud injection premix barrel respectively, because three outer shroud injection premix barrel are uniformly distributed along the circumference, make gaseous-pressure relative equilibrium in the main chamber inner region, main chamber just can not produce inclined to one side fire when burning work; Adopt 1 interior ring spray mouth and 3 outer shroud nozzle air feed simultaneously, and adopt two separate blast tubes, make gas flow more sufficient, the thermal efficiency improves about 10% efficiency.

Description of drawings

Fig. 1 is a perspective view of the present invention;

Fig. 2 is external ring fire cover, interior ring fire lid and last flap package assembly schematic diagram;

Fig. 3 is one of last flap schematic diagram;

Fig. 4 goes up two of flap schematic diagram;

Fig. 5 is one of base schematic diagram;

Fig. 6 is two of a base schematic diagram;

Fig. 7 is the external ring fire cover schematic diagram;

Fig. 8 is interior ring fire lid schematic diagram;

Fig. 9 is interior ring spray mouth or outer shroud nozzle arrangements schematic diagram;

Figure 10 is Fig. 9 decomposition texture schematic diagram;

Figure 11 is a nozzle body master cut-away view.

The specific embodiment

The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.

Embodiment

As shown in Figure 1, a kind of multiinjector, go up air inlet gas range burner assembly fully, comprise external ring fire cover 1, interior ring fire lid 2, cup-shaped base 3, be provided with flap 4 at base 3 openends.

As Fig. 2, Fig. 3 and shown in Figure 4, ring burner head 42 and outer shroud burner head 41 in last flap 4 upper ends are provided with, constitute main chamber between external ring fire cover 1 and the outer shroud burner head 41, constitute subsidiary combustion chamber between interior ring fire lid 2 and the interior ring burner head 42, external ring fire cover 1 is provided with the outer shroud fire hole 11 that communicates with main chamber, and interior ring fire lid 2 is provided with the interior ring fire hole 21 that communicates with subsidiary combustion chamber.

As Fig. 1, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, spaces form a chamber 31 after by last flap 4 cappings in the base 3, be provided with an air inlet 5 that is communicated with chamber 31 between last flap 4 and the base 3, air inlet 5 has a plurality ofly among the present invention, and it surrounds for last flap 4 set a plurality of inner recess and base 3 madial walls.Last flap 4 excircles also are provided with for the required auxiliary air inlet 43 of subsidiary combustion chamber burning; Be provided with a plurality of outer shroud injection premix barrel 62 of encircling injection premix barrel 61 and communicate in one that communicates with subsidiary combustion chamber in the chamber interior 31 with main chamber, and the interior ring spray mouth 63 corresponding with interior ring injection premix barrel 61 and a plurality of respectively with each outer shroud injection premix barrel 62 outer shroud nozzle 64 one to one, the mixed gas outlet of each outer shroud injection premix barrel 62 communicates with main chamber, and the mixed gas outlet of interior ring injection premix barrel 61 communicates with subsidiary combustion chamber.

As shown in Figure 3 and Figure 4, interior ring injection premix barrel 61 and outer shroud injection premix barrel 62 are vertical, and interior ring injection premix barrel 61 and outer shroud injection premix barrel 62 roots are connected as a single entity with last flap 4 respectively, have reduced parts, reduce production costs.

As shown in Figure 5 and Figure 6, base 3 is provided with two separate blast tubes 7, one blast tube 7 is connected with each outer shroud nozzle 64, another blast tube 7 is connected with interior ring spray mouth 63, main chamber, subsidiary combustion chamber all have the corresponding feed path that independently burns, like this, the subsidiary combustion chamber work of can burning separately also can switch to main chamber, the work of subsidiary combustion chamber synchronousing combustion.

Interior ring spray mouth 63 is positioned at base 4 centers and upwards faces ring injection premix barrel 61, each outer shroud nozzle 64 is the even distribution of center circumferential with interior ring spray mouth 63 and upwards faces each outer shroud injection premix barrel 62 one by one that interior ring spray mouth 63 and outer shroud nozzle 64 roots are connected as a single entity with base 4 bottoms respectively.Among the present invention, pairing three the outer shroud injection premix barrel 62 of main chamber are used to accept the required pre-mixed imflammable gas that burns, three outer shroud nozzles 64 upwards face corresponding outer shroud injection premix barrel respectively, because three outer shroud injection premix barrel 62 are uniformly distributed along the circumference, make gaseous-pressure relative equilibrium in the main chamber inner region, main chamber just can not produce inclined to one side fire when burning work; Adopt 1 interior ring spray mouth and 3 outer shroud nozzle air feed simultaneously, and adopt two separate blast tubes, make gas flow more sufficient, the thermal efficiency improves about 10% efficiency.

As shown in Figure 7, outer shroud fire hole 11 is a plurality of small through hole along circumference in the external ring fire cover bottom that gather.

As shown in Figure 8, interior ring fire hole 21 is the two rows through hole along circumference in interior ring fire lid bottom that gathers, and last exhausting hole 211 internal diameters are greater than following exhausting hole 212 internal diameters.

As Fig. 9, Figure 10 and shown in Figure 11, interior ring spray mouth 63 or outer shroud nozzle 64 comprise nozzle body 600, be provided with air door adjustment sheet 601 in the upper end of nozzle body 600, air door adjustment sheet 601 adopts with nozzle body 600 and is threaded, and is provided with spring 602 between nozzle body 600 and air door adjustment sheet 601.By in chamber 31, being provided with interior ring spray mouth 63, the outer shroud nozzle 64 of adjustable type, be convenient to the present invention can all can obtain the required ratio of best combustion operating mode under zones of different and various different gas source conditions gaseous mixture, feasible burning is more abundant, thereby energy-saving and environmental protection more reduce noxious gas emission.

Claims (7)

  1. A multiinjector, go up air inlet gas range burner assembly fully, comprise external ring fire cover, interior ring fire lid, cup-shaped base, it is characterized in that the base openings end is provided with flap, the seat of honour covers end and is provided with interior ring burner head and outer shroud burner head, constitute main chamber between described external ring fire cover and the outer shroud burner head, external ring fire cover or outer shroud burner head are provided with the outer shroud fire hole that communicates with main chamber; Constitute subsidiary combustion chamber between ring fire lid and the interior ring burner head in described, interior ring fire lid or interior ring burner head are provided with the interior ring fire hole that communicates with subsidiary combustion chamber, the space is formed a chamber by seat of honour cap seal lid back in the described base, be provided with an air inlet that is communicated with chamber between last flap and the base, last flap excircle also is provided with for the required auxiliary air inlet of subsidiary combustion chamber burning; Be provided with a plurality of outer shroud injection premix barrel of encircling the injection premix barrel and communicate in one that communicates with subsidiary combustion chamber in the chamber with main chamber, and the interior ring spray mouth corresponding with interior ring injection premix barrel and a plurality of respectively with each outer shroud injection premix barrel outer shroud nozzle one to one, the mixed gas outlet of each outer shroud injection premix barrel communicates with main chamber, and the mixed gas outlet of interior ring injection premix barrel communicates with subsidiary combustion chamber.
  2. 2. according to the described a kind of multiinjector of claim 1, go up air inlet gas range burner assembly fully, it is characterized in that described base is provided with two separate blast tubes, one blast tube is connected with each outer shroud nozzle, and another blast tube is connected with interior ring spray mouth.
  3. 3. according to the described a kind of multiinjector of claim 1, go up air inlet gas range burner assembly fully, it is characterized in that described interior ring spray mouth or outer shroud nozzle comprise nozzle body, be provided with the air door adjustment sheet in the upper end of nozzle body, the air door adjustment sheet adopts with nozzle body and is threaded, and is provided with spring between nozzle body and air door adjustment sheet.
  4. 4. according to claim 1 or 2 or 3 described a kind of multiinjectors, go up air inlet gas range burner assembly fully, it is characterized in that described interior ring injection premix barrel and outer shroud injection premix barrel are vertical, interior ring injection premix barrel and outer shroud injection premix barrel root are connected as a single entity with last flap respectively.
  5. 5. according to the described a kind of multiinjector of claim 4, go up air inlet gas range burner assembly fully, it is characterized in that described interior ring spray mouth is positioned at the base center and upwards faces ring injection premix barrel, each outer shroud nozzle is the even distribution of center circumferential with interior ring spray mouth and upwards faces each outer shroud injection premix barrel one by one that interior ring spray mouth and outer shroud nozzlend are connected as a single entity with the base bottom respectively.
  6. 6. according to the described a kind of multiinjector of claim 5, go up air inlet gas range burner assembly fully, it is characterized in that described outer shroud injection premix barrel has three, described outer shroud nozzle correspondingly is provided with three, and three outer shroud nozzles upwards face corresponding outer shroud injection premix barrel respectively.
  7. 7. according to the described a kind of multiinjector of claim 1, go up air inlet gas range burner assembly fully, it is characterized in that described outer shroud fire hole is a plurality of small through hole along circumference in the external ring fire cover bottom that gather, the ring fire hole is the two rows through hole along circumference in interior ring fire lid bottom that gathers in described, and last exhausting hole internal diameter is greater than following exhausting hole internal diameter.
CN2011100409039A 2011-02-18 2011-02-18 Combustor assembly of multi-nozzle gas furnace for complete top air intake CN102183016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100409039A CN102183016A (en) 2011-02-18 2011-02-18 Combustor assembly of multi-nozzle gas furnace for complete top air intake

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CN2011100409039A CN102183016A (en) 2011-02-18 2011-02-18 Combustor assembly of multi-nozzle gas furnace for complete top air intake

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032876A (en) * 2012-12-12 2013-04-10 中山华帝燃具股份有限公司 Blast type combustor
CN103742909A (en) * 2014-01-25 2014-04-23 浙江帅丰电器有限公司 Upper air incoming burner with two ejectors
CN103939900A (en) * 2013-01-22 2014-07-23 中山市富庭厨卫电器有限公司 Novel direct-injection burner
CN104595898A (en) * 2015-02-03 2015-05-06 陈秉江 Top air inlet type gas stove burner
CN104864422A (en) * 2015-05-14 2015-08-26 天津大学 Energy-saving Chinese food frying fuel gas cooker
CN105351927A (en) * 2015-11-20 2016-02-24 中山百得厨卫有限公司 Upper air feeding burner
CN106500099A (en) * 2016-11-28 2017-03-15 陈秉江 Full upward air intake can district grid flame burner for gas kitchen range

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2438932Y (en) * 2000-08-03 2001-07-11 海尔集团公司 Air upper intake burner of gas combustion stove
CN2540560Y (en) * 2002-05-21 2003-03-19 朱文光 Energy-saving gas injection burner
EP0994301B1 (en) * 1998-10-16 2004-01-02 Brandt Cooking Assembly of a device comprising a gas burner
CN2793563Y (en) * 2005-05-27 2006-07-05 浙江普田电器有限公司 Double jetting burner with upward air intake of household gas cooker
CN2839837Y (en) * 2005-08-25 2006-11-22 中山市长青科技发展有限公司 Upper air-intake burner
CN201434384Y (en) * 2009-03-26 2010-03-31 浙江德意厨具有限公司 Domestic gas combustor
CN202101234U (en) * 2011-02-18 2012-01-04 孙云山 Multi-nozzle, complete upper gas-admission gas furnace combustion device assembly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0994301B1 (en) * 1998-10-16 2004-01-02 Brandt Cooking Assembly of a device comprising a gas burner
CN2438932Y (en) * 2000-08-03 2001-07-11 海尔集团公司 Air upper intake burner of gas combustion stove
CN2540560Y (en) * 2002-05-21 2003-03-19 朱文光 Energy-saving gas injection burner
CN2793563Y (en) * 2005-05-27 2006-07-05 浙江普田电器有限公司 Double jetting burner with upward air intake of household gas cooker
CN2839837Y (en) * 2005-08-25 2006-11-22 中山市长青科技发展有限公司 Upper air-intake burner
CN201434384Y (en) * 2009-03-26 2010-03-31 浙江德意厨具有限公司 Domestic gas combustor
CN202101234U (en) * 2011-02-18 2012-01-04 孙云山 Multi-nozzle, complete upper gas-admission gas furnace combustion device assembly

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032876A (en) * 2012-12-12 2013-04-10 中山华帝燃具股份有限公司 Blast type combustor
CN103939900A (en) * 2013-01-22 2014-07-23 中山市富庭厨卫电器有限公司 Novel direct-injection burner
CN103742909A (en) * 2014-01-25 2014-04-23 浙江帅丰电器有限公司 Upper air incoming burner with two ejectors
CN103742909B (en) * 2014-01-25 2017-02-08 浙江帅丰电器有限公司 Upper air incoming burner with two ejectors
CN104595898A (en) * 2015-02-03 2015-05-06 陈秉江 Top air inlet type gas stove burner
CN104595898B (en) * 2015-02-03 2016-09-07 陈秉江 A kind of upper wind inlet type burner for gas stove
CN104864422A (en) * 2015-05-14 2015-08-26 天津大学 Energy-saving Chinese food frying fuel gas cooker
CN105351927A (en) * 2015-11-20 2016-02-24 中山百得厨卫有限公司 Upper air feeding burner
CN106500099A (en) * 2016-11-28 2017-03-15 陈秉江 Full upward air intake can district grid flame burner for gas kitchen range
CN106500099B (en) * 2016-11-28 2018-11-13 陈秉江 Full upward air intake can district grid flame burner for gas kitchen range

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