CN203464276U - Inner spray type combustor for gas cooker - Google Patents
Inner spray type combustor for gas cooker Download PDFInfo
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- CN203464276U CN203464276U CN201320418065.9U CN201320418065U CN203464276U CN 203464276 U CN203464276 U CN 203464276U CN 201320418065 U CN201320418065 U CN 201320418065U CN 203464276 U CN203464276 U CN 203464276U
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- annular
- burner
- pedestal
- connecting ring
- combustion
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Abstract
An inner spray type combustor for a gas cooker belongs to a household gas cooker, and solves the problems of large discharge of CO and NOx and relatively low combustion efficiency of a current combustor, so as to reach the national energy-saving environmental protection standard. The combustor comprises a base, an injection pipe, a connecting ring, a furnace end, and a smoke gas hood. The injection pipe is fixedly connected with the base, the base is provided with the connecting ring, the furnace end, and the smoke gas hood from up to down, and the inner wall of the furnace end is provided with a plurality of fire holes in a circumferential uniform distribution. The flame of the fire holes is ejected inwardly, so that the flame is concentrated to heat the bottom of a pan, and thermal efficiency is improved. When combustion gas is in combustion, an upward air flow is formed, a suction function is played, secondary air is supplemented from the bottom center of a combustor, combustion is fully performed, and exhaust gas discharge is less, combustion efficiency can be greatly improved, discharge of CO and NOx in flue gas is greatly reduced, and the national energy saving environmental protection standard is reached.
Description
Technical field
The utility model belongs to household gas utensils, relates in particular to a kind of internal combustion burner 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, is 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, emphasizes very clearly to improve another important direction of thermal efficiency Ye Jiangshi China kitchen range research and development of kitchen range.Meanwhile, again the thermal efficiency in 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 utility model provides a kind of internal combustion burner for gas kitchen ranges, solves existing burner CO and NOx and discharges problem large and that efficiency of combustion has much room for improvement, to reach national energy-saving environmental protection standard.
A kind of internal combustion burner for gas kitchen ranges provided by the utility model, comprises 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 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 annular hollow interlayer is used 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, described interior annulus bottom has the end cap of one, for being connected with pedestal, on described end cap, have uniform air admission hole, 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, between described inner cylinder and outer cylinder, form annular fuel gas passage, 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 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.
During the utility model work, fuel sprays into induction tunnel by external equipment nozzle, under certain pressure, injection portion of air (primary air) is entered the annular hollow interlayer of pedestal by induction tunnel, 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 refers to because nozzle ejector action enters with fuel the air that combustion tube is sprayed by nozzle, and 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 utility model can be organized good aerodynamic field, and realizes fast, evenly mixing of combustion gas and air, at the bottom of adopting internal combustion structure can make flame concentrate heating kettle, improves the 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 because auxiliary air enters from burner bottom, during fuel gas buring, form air-flow upwards, and performance pumping function, can supplement auxiliary air, sufficient combustion, and toxic emission is few.Experimental result shows that the heat absorption efficiency of pot face reaches 65%, CO discharge capacity below 100ppm, and NOx discharge capacity is below 100ppm, and CO and NOx discharge are all well below national energy-saving environmental requirement index.
Accompanying drawing explanation
Fig. 1 is the utility model schematic perspective view;
Fig. 2 is the utility model top view;
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 connecting ring cutaway view
Fig. 7 is burner schematic perspective view;
Fig. 8 is burner cutaway view;
Fig. 9 is flue gas cover schematic perspective view;
Figure 10 is cutaway view of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1 and Figure 2, embodiment of the present utility model, comprises 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, annular hollow interlayer is used 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, described interior annulus 3-1 bottom has the end cap 3-4 of one, for being connected with pedestal 4, on described end cap 3-4, have uniform air admission hole 3-4A, 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, between described inner cylinder 1-1 and outer cylinder 1-2, form annular fuel gas passage 1-3, 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 for cross section be the rotary body of right-angled trapezium, rotary body bottom surface internal diameter is identical with the diameter of described burner inner cylinder 1-1, 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 burner inner cylinder is shaped as rectangle, is about as 5.5mm, the wide 3.5mm that is about, 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 is different, gas-cooker power is different, 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, be both conducive to burning completely, can suppress the generation of NOx again, to reach high-efficiency cleaning burning.
Claims (3)
1. the internal combustion burner 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), on pedestal, be equipped with connecting ring, burner and flue gas cover 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, annular hollow interlayer is used 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), on described end cap (3-4), there is uniform air admission hole (3-4A), 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, between described inner cylinder (1-1) and outer cylinder (1-2), form annular fuel gas passage (1-3), 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) for cross section be the rotary body of right-angled trapezium, rotary body bottom surface internal diameter is identical with the diameter of described burner inner cylinder (1-1), 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320418065.9U CN203464276U (en) | 2013-07-15 | 2013-07-15 | Inner spray type combustor for gas cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320418065.9U CN203464276U (en) | 2013-07-15 | 2013-07-15 | Inner spray type combustor for gas cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203464276U true CN203464276U (en) | 2014-03-05 |
Family
ID=50176640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320418065.9U Expired - Fee Related CN203464276U (en) | 2013-07-15 | 2013-07-15 | Inner spray type combustor for gas cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203464276U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438453A (en) * | 2013-07-15 | 2013-12-11 | 华中科技大学 | Internal-injection burner for gas cooker |
| CN108679700A (en) * | 2018-07-19 | 2018-10-19 | 慈溪市恒进电子有限公司 | A kind of self power generation blower mechanism of outdoor heater |
| CN110360562A (en) * | 2019-08-02 | 2019-10-22 | 宁波方太厨具有限公司 | Gas cooker |
-
2013
- 2013-07-15 CN CN201320418065.9U patent/CN203464276U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438453A (en) * | 2013-07-15 | 2013-12-11 | 华中科技大学 | Internal-injection burner for gas cooker |
| CN108679700A (en) * | 2018-07-19 | 2018-10-19 | 慈溪市恒进电子有限公司 | A kind of self power generation blower mechanism of outdoor heater |
| CN110360562A (en) * | 2019-08-02 | 2019-10-22 | 宁波方太厨具有限公司 | Gas cooker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20140715 |
|
| EXPY | Termination of patent right or utility model |