CN103438453A - Internal-injection burner for gas cooker - Google Patents

Internal-injection burner for gas cooker Download PDF

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Publication number
CN103438453A
CN103438453A CN2013102955811A CN201310295581A CN103438453A CN 103438453 A CN103438453 A CN 103438453A CN 2013102955811 A CN2013102955811 A CN 2013102955811A CN 201310295581 A CN201310295581 A CN 201310295581A CN 103438453 A CN103438453 A CN 103438453A
Authority
CN
China
Prior art keywords
burner
annular
cylinder
pedestal
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2013102955811A
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Chinese (zh)
Inventor
邹春
谢泓
操时英
罗畅
蔡磊
张亮
吕雷生
罗刚
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Huazhong University of Science and Technology
Original Assignee
Huazhong University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Huazhong University of Science and Technology filed Critical Huazhong University of Science and Technology
Priority to CN2013102955811A priority Critical patent/CN103438453A/en
Publication of CN103438453A publication Critical patent/CN103438453A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an internal-injection burner for a gas cooker and belongs to household gas cookers. According to the internal-injection burner, the problems that the emission loads of CO and NOx are greater and the burning efficiency is required to be increased in the traditional burner are solved and further the national energy-saving and environment-friendly standards are met. The internal-injection burner comprises a base, an injection pipe, a connecting ring, a stove head and a smoke gas hood, wherein the injection pipe is fixedly connected with the base; the connecting ring, the stove head and the smoke gas hood are arranged on the base from top to bottom; a plurality of fire holes are uniformly distributed in the inner wall of the stove head along the circumference. According to the internal-injection burner disclosed by the invention, the flame from the fire holes is internally injected, so that the flame centrally heats the bottom of a pot and the heat efficiency is increased; when gas burns, an upward air current is formed and a suction function is achieved; secondary air can be supplemented from the center of bottom of the burner, the burning is sufficient and the emission loads of waste gases are less. The burning efficiency can be greatly increased, the emission loads of the CO and the NOx in smoke gas are greatly reduced and the national energy-saving and environment-friendly standards are met.

Description

A kind of burner of the internal combustion for gas kitchen ranges
Technical field
The invention belongs to household gas utensils, relate in particular to a kind of burner of the internal combustion for gas kitchen ranges.
Background technology
The combustion system of existing gas kitchen ranges is the open burning of air suspended type, flame outwards sprays, can not concentrate the bottom of heating kettle, and burning formation flue gas is inadequate in the bottom of a pan time of staying, the premix air capacity of the open burning of air suspended type is generally 60% of theoretical air requirement, required a large amount of auxiliary air, cause exhaust gas volumn large, flue-gas temperature is low, thereby affects heat exchange, therefore its thermal efficiency is low, scarcely surpass 55%; Existing gas-cooker will be realized increasing power simultaneously and improve the thermal efficiency, be very difficult.New " household gas utensils " national standard requires the thermal efficiency of table type kitchen range to want >=55%, the Embedded kitchen range thermal efficiency >=50%, this has improved nearly 5 percentage points than original standard, and the thermal efficiency of emphasizing very clearly to improve kitchen range will be also another important direction of China's kitchen range research and development.Simultaneously, again the thermal efficiency in the gas-cooker GB is promoted to mandatory term (A) by recommendatory clause (B), in other words energy-conservation problem the situation is tense, very urgent.
Summary of the invention
The invention provides a kind of burner of the internal combustion for gas kitchen ranges, solve existing burner CO and NOx and discharge problem large and that efficiency of combustion has much room for improvement, to reach the national energy-saving environmental protection standard.
A kind of burner of the internal combustion for gas kitchen ranges provided by the present invention, comprise pedestal, induction tunnel, connecting ring, burner, flue gas cover, and induction tunnel and pedestal are connected, and are equipped with connecting ring, burner and flue gas cover on pedestal from bottom to top, it is characterized in that:
Described pedestal is the cylinder that barrel has the annular hollow interlayer, this cylinder is by a part of with the acutangulate inclined-plane cutting of its axis, and described annular hollow interlayer bottom is sealed, and the annular hollow interlayer is for passing into combustion gas, described induction tunnel and pedestal are connected, for passing into combustion gas;
Described connecting ring is connected as one and forms with one heart by interior annulus and outer toroid, annular connecting part width between interior annulus and outer toroid and the width of described pedestal hollow interlayer adapt, annular connecting part has uniform passage, the end cap that described interior annulus bottom has one, for being connected with pedestal, have uniform air admission hole on described end cap, the outer wall of described outer toroid has the annular shirt rim for connecting;
Described burner is connected as one and forms with one heart on top by inner cylinder and outer cylinder, form the annular fuel gas passage between described inner cylinder and outer cylinder, the annular connecting part width of annular fuel gas channel width and described connecting ring adapts, and has a plurality of fire holes that distribute along even circumferential on described inner cylinder;
Described flue gas cover is that cross section is the rotary body of right-angled trapezium, and rotary body bottom surface internal diameter is identical with the diameter of described burner inner cylinder, and rotary body bottom surface external diameter is identical with the diameter of described burner outer cylinder;
Described connecting ring is placed on pedestal, and on the barrel that the interior annulus of connecting ring and outer toroid are enclosed within pedestal, match in annular connecting part and described annular hollow interlayer top;
Described burner is placed on connecting ring, and annular fuel gas passage and described annular connecting part match, and passage uniform on annular connecting part is used for from described annular hollow interlayer to the annular fuel gas passage by combustion gas;
Described flue gas cover is placed on burner, and both directly coordinate assembling.
Described internal combustion burner, the fire hole shape on described burner inner cylinder can be rectangle, quantity can be 28~36.
Described internal combustion burner, described flue gas cover can be for having the rotary body of cavity, to alleviate deadweight.
When the present invention works, fuel sprays into induction tunnel by the external equipment nozzle, under certain pressure, injection portion of air (primary air) is entered the annular hollow interlayer of pedestal by induction tunnel, the annular hollow interlayer forms mixing chamber jointly by the annular fuel gas passage of passage uniform on connecting ring and burner, and auxiliary air can be supplemented by the air admission hole on the connecting ring end cap of pedestal top.Through the fuel of premix and the mixture of air, by the fire hole on burner, inwardly spray.(primary air refer to because the nozzle ejector action enters the air of combustion tube by nozzle ejection with fuel, auxiliary air refers in combustion process from supplementary air of surrounding air week).
Existing gas kitchen range flame outwards sprays, and can not concentrate the bottom of heating kettle, and burning formation flue gas is inadequate in the bottom of a pan time of staying, causes inefficiency, wastes energy.Mixing chamber of the present invention can be organized good aerodynamic field, and realizes quick, the evenly mixing of combustion gas and air, at the bottom of adopting the internal combustion structure can make flame concentrate heating kettle, and the raising thermal efficiency; Flue gas cover can be so that combustion product gases stops the sufficiently long time in the bottom of a pan and pot wall, make the more heat of thickness gas can be used for heating whole pot body, the heat that has better utilized burning to produce, and the effect due to flue gas, pot is all reduced in heat conduction and the thermal convection current of extraneous air, improved to a great extent efficiency.And enter from the burner bottom due to auxiliary air, forming air-flow upwards during fuel gas buring, the performance pumping function, can supplement auxiliary air, sufficient combustion, toxic emission is few.Experimental result shows that the heat absorption efficiency of pot face reaches 65%, CO discharge capacity below 100ppm, and the NOx discharge capacity is below 100ppm, and CO and NOx discharge are all well below national energy-saving environmental requirement index.
The accompanying drawing explanation
Fig. 1 is schematic perspective view of the present invention;
Fig. 2 is top view of the present invention;
Fig. 3 is pedestal and induction tunnel combination schematic perspective view;
Fig. 4 is connecting ring top perspective schematic diagram;
Fig. 5 is that connecting ring is looked up schematic perspective view;
Fig. 6 is the connecting ring cutaway view
Fig. 7 is the burner schematic perspective view;
Fig. 8 is the burner cutaway view;
Fig. 9 is the flue gas cover schematic perspective view;
Figure 10 is cutaway view of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As shown in Figure 1 and Figure 2, embodiments of the invention, comprise pedestal 4, induction tunnel 5, connecting ring 3, burner 1, flue gas cover 2, and induction tunnel 5 is connected with pedestal 4, is equipped with connecting ring 3, burner 1 and flue gas cover 2 on pedestal 4 from bottom to top;
As shown in Figure 3, described pedestal 4 has the cylinder of annular hollow interlayer 4-1 for barrel, this cylinder is by a part of with the acutangulate inclined-plane cutting of its axis, the sealing of described annular hollow interlayer 4-1 bottom, the annular hollow interlayer is for passing into combustion gas, described induction tunnel 5 is connected with pedestal 4, for passing into combustion gas;
As shown in Fig. 4, Fig. 5, Fig. 6, described connecting ring 3 is connected as one and forms with one heart by interior annulus 3-1 and outer toroid 3-2, annular connecting part 3-3 width between interior annulus 3-1 and outer toroid 3-2 and the width of described pedestal hollow interlayer adapt, annular connecting part 3-3 has uniform passage 3-3A, the end cap 3-4 that described interior annulus 3-1 bottom has one, for being connected with pedestal 4, have uniform air admission hole 3-4A on described end cap 3-4, the outer wall of described outer toroid 3-2 has the annular shirt rim 3-5 for connecting;
As shown in Figure 7, Figure 8, described burner 1 is connected as one and forms with one heart on top by inner cylinder 1-1 and outer cylinder 1-2, form annular fuel gas passage 1-3 between described inner cylinder 1-1 and outer cylinder 1-2, the annular connecting part 3-3 width of annular fuel gas passage 1-3 width and described connecting ring adapts, and has a plurality of fire hole 1-1A that distribute along even circumferential on described inner cylinder 1-1;
As shown in Figure 9, described flue gas cover 2 is the rotary body of right-angled trapezium for cross section, and rotary body bottom surface internal diameter is identical with the diameter of described burner inner cylinder 1-1, and rotary body bottom surface external diameter is identical with the diameter of described burner outer cylinder 1-2;
As shown in figure 10, described connecting ring 3 is placed on pedestal 4, and interior annulus 3-1 and the outer toroid 3-2 of connecting ring are enclosed within on the barrel of pedestal 4, matches in annular connecting part 3-3 and described annular hollow interlayer 4-1 top;
Described burner 1 is placed on connecting ring 3, and annular fuel gas passage 1-3 and described annular connecting part 3-3 match, and the upper uniform passage 3-3A of annular connecting part 3-3 is used for from described annular hollow interlayer 4-1 to annular fuel gas passage 1-3 by combustion gas;
Described flue gas cover 2 is placed on burner 1, and both directly coordinate assembling.
In the present embodiment, the high about 3cm of burner, the fire hole on the burner inner cylinder is shaped as rectangle, is about as 5.5mm, the wide 3.5mm that is about, the fire hole upper end is apart from the about 1mm in burner top, and fire hole quantity is 28~36.
Flue gas cover is the rotary body with cavity, and high about 2.5cm, to alleviate deadweight.
The position of each fire hole has determined degree that firepower is concentrated and the situation of burning.If fuel difference, gas-cooker power difference, the condition of the formation of its CO and NOx is different with position, the dimensional parameters of single fire hole is just different, by adjusting rectangle fire hole size and cylindrical channel size, can be so that fuel in suitable zonal combustion, both be conducive to burning fully, can suppress the generation of NOx again, to reach the high-efficiency cleaning burning.

Claims (3)

1. the burner of the internal combustion for gas kitchen ranges, comprise pedestal (4), induction tunnel (5), connecting ring (3), burner (1), flue gas cover (2), induction tunnel (5) is connected with pedestal (4), be equipped with connecting ring, burner and flue gas cover on pedestal from bottom to top, it is characterized in that:
Described pedestal (4) has the cylinder of annular hollow interlayer (4-1) for barrel, this cylinder is by a part of with the acutangulate inclined-plane cutting of its axis, the sealing of described annular hollow interlayer (4-1) bottom, the annular hollow interlayer is for passing into combustion gas, described induction tunnel (5) is connected with pedestal (4), for passing into combustion gas;
Described connecting ring (3) connects as one formation with one heart by interior annulus (3-1) and outer toroid (3-2), annular connecting part (3-3) width between interior annulus (3-1) and outer toroid (3-2) and the width of described pedestal hollow interlayer adapt, annular connecting part (3-3) has uniform passage (3-3A), described interior annulus (3-1) bottom has the end cap (3-4) of one, for being connected with pedestal (4), there is uniform air admission hole (3-4A) on described end cap (3-4), the outer wall of described outer toroid (3-2) has the annular shirt rim (3-5) for connecting,
Described burner (1) connects as one formation with one heart by inner cylinder (1-1) and outer cylinder (1-2) on top, form annular fuel gas passage (1-3) between described inner cylinder (1-1) and outer cylinder (1-2), annular connecting part (3-3) width of annular fuel gas passage (1-3) width and described connecting ring adapts, and has a plurality of fire holes (1-1A) that distribute along even circumferential on described inner cylinder (1-1);
Described flue gas cover (2) is the rotary body of right-angled trapezium for cross section, and rotary body bottom surface internal diameter is identical with the diameter of described burner inner cylinder (1-1), and rotary body bottom surface external diameter is identical with the diameter of described burner outer cylinder (1-2);
Described connecting ring (3) is placed on pedestal (4), interior annulus (3-1) and the outer toroid (3-2) of connecting ring are enclosed within on the barrel of pedestal (4), match in annular connecting part (3-3) and described annular hollow interlayer (4-1) top;
Described burner (1) is placed on connecting ring (3), annular fuel gas passage (1-3) and described annular connecting part (3-3) match, the upper uniform passage (3-3A) of annular connecting part (3-3) for from described annular hollow interlayer (4-1) to annular fuel gas passage (1-3) by combustion gas;
It is upper that described flue gas cover (2) is placed in burner (1), and both directly coordinate assembling.
2. internal combustion burner as claimed in claim 1 is characterized in that:
Fire hole (1-1A) on described burner inner cylinder (1-1) is shaped as rectangle, and quantity is 28~36.
3. internal combustion burner as claimed in claim 1 or 2 is characterized in that:
Described flue gas cover (2) is for having the rotary body of cavity, to alleviate deadweight.
CN2013102955811A 2013-07-15 2013-07-15 Internal-injection burner for gas cooker Pending CN103438453A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013102955811A CN103438453A (en) 2013-07-15 2013-07-15 Internal-injection burner for gas cooker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013102955811A CN103438453A (en) 2013-07-15 2013-07-15 Internal-injection burner for gas cooker

Publications (1)

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CN103438453A true CN103438453A (en) 2013-12-11

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154541A (en) * 2014-06-16 2014-11-19 陈顺发 Circular-seam-type injector of gas burner
CN104728844A (en) * 2015-02-11 2015-06-24 上海欧特电器有限公司 Technological manufacturing method of atmospheric burner

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1306177A (en) * 2000-01-18 2001-08-01 松下电器产业株式会社 Gas burner head
CN1590844A (en) * 2003-08-27 2005-03-09 松下电器产业株式会社 Burner and gas range using the same
CN1815080A (en) * 2005-02-03 2006-08-09 崔诚桓 Obturation gas boiler using burning device
US20100092902A1 (en) * 2007-03-23 2010-04-15 Carlo Paesani Gas burner for cooking appliances
CN202470060U (en) * 2011-10-27 2012-10-03 中山市樱雪集团有限公司 Inner spraying type combustor for gas cooking appliance
CN203464276U (en) * 2013-07-15 2014-03-05 华中科技大学 Inner spray type combustor for gas cooker

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1306177A (en) * 2000-01-18 2001-08-01 松下电器产业株式会社 Gas burner head
CN1590844A (en) * 2003-08-27 2005-03-09 松下电器产业株式会社 Burner and gas range using the same
CN1815080A (en) * 2005-02-03 2006-08-09 崔诚桓 Obturation gas boiler using burning device
US20100092902A1 (en) * 2007-03-23 2010-04-15 Carlo Paesani Gas burner for cooking appliances
CN202470060U (en) * 2011-10-27 2012-10-03 中山市樱雪集团有限公司 Inner spraying type combustor for gas cooking appliance
CN203464276U (en) * 2013-07-15 2014-03-05 华中科技大学 Inner spray type combustor for gas cooker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104154541A (en) * 2014-06-16 2014-11-19 陈顺发 Circular-seam-type injector of gas burner
CN104154541B (en) * 2014-06-16 2016-06-29 陈顺发 A kind of ring-crack ventilation injector of gas burner
CN104728844A (en) * 2015-02-11 2015-06-24 上海欧特电器有限公司 Technological manufacturing method of atmospheric burner

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Application publication date: 20131211