CN201593789U

CN201593789U - Atmospheric burner

Info

Publication number: CN201593789U
Application number: CN2010200377005U
Authority: CN
Inventors: 霍成
Original assignee: SICHUAN RUIXIN ELECTRICAL PRODUCTS CO Ltd
Current assignee: SICHUAN RUIXIN ELECTRICAL PRODUCTS CO Ltd
Priority date: 2010-01-14
Filing date: 2010-01-14
Publication date: 2010-09-29
Anticipated expiration: 2020-01-14

Abstract

The utility model provides an atmospheric burner which comprises a lower burner cap, a middle burner cap and an upper burner cap. A central burner cap is installed at the top of the middle burner cap, and provided with an inner-ring fuel gas hole; main fuel gas channels are arranged on the lower burner cap and a middle burner cap; a gas mixing groove is installed between the lower burner cap and the upper burner cap; and an outer-ring fuel gas hole is arranged on the outer periphery of the upper burner cap. The atmospheric burner is characterized in that at least two connecting channels which are communicated with the main fuel gas channels and the gas mixing groove, and has large outer side and small inner side are arranged between the middle burner cap and the lower burner cap; and a plurality of middle-ring fuel gas grooves which are communicated with the gas mixing groove and arranged obliquely are arranged between the upper burner cap and the middle burner cap. The atmospheric burner has large heating load, stable flame and high heating efficiency, reduces the discharge of pollutant gas, and is energy-saving and environment-friendly.

Description

Atmospheric burner

Technical field:

The utility model is relevant with the atmospheric gas kitchen range, and is special relevant with atmospheric burner.

Background technology:

The gas-cooker of Xiao Shouing mainly contains two kinds on desk-top kitchen range and embedded kitchen range in the market, and the two compares the former thermal efficiency height usually, and NOx discharge high, and CO discharges low, and the latter is opposite.From combustion system, mostly be partly-premixed atmospheric burning type, its heat transfer is mainly heat convection and Fire Radiation heat exchange.The flame of originally lighting a fire that atmospheric burning type forms, there is localized hyperthermia in flame surface temperature skewness, not only generates T-NO in a large number, also generates P-NO, so the NOx discharging is higher.Particularly when the CO index was hanged down in pursuit, the NOx discharging can be higher.

Traditional burner is divided into the inside loop and outside loop fire, and main fire is outer ring fire, and interior ring fire is as auxiliary combustion; The burning passage can be divided into two kinds of circular hole and square grooves, and wherein the gas flow of circular hole is little, and combusting firepower is little, and it is more to produce CO; And square groove is opposite, and the square groove gas flow is big, and firepower is big, but the CO severe overweight that can produce, just the gas-cooker of the atmospheric burning type of using at present will realize improving the discharging of the thermal efficiency, reduction pollutant NOx and CO simultaneously, is very difficult.

Atmospheric burning type method: combustion gas and part air are mixed the ejection of back spontaneous combustion device head mutually, light the back and above fire hole, be inside and outside double-layer flame.For sufficient combustion, requirement has enough auxiliary airs space of flowing, and in order to prevent the CO too high levels in the flue gas, gas-cooker should be kept certain support height in addition, atmospheric burning type is owing to need auxiliary air, and further reducing the combustion apparatus volume will be restricted.From the environmental protection angle, it is more to produce NOx in the flue gas of atmospheric burning type, also need adopt many technical measures in order to reduce NOx content.

The utility model content:

The purpose of this utility model is in order to overcome above deficiency, provides that a kind of thermic load is big, flame stabilization, thermal efficiency height, reduces the discharging of dusty gas, the atmospheric burner of energy-conserving and environment-protective.

The purpose of this utility model is achieved in that

The utility model atmospheric burner, comprise lower fire cover, the moderate heat lid equipped with lower fire cover, upper fire cover, be contained in the middle internal heat lid of the interior ring fuel gas hole of having of moderate heat tops, lower fire cover and moderate heat have covered main blast tube, mixed air drain is arranged between lower fire cover and upper fire cover, the outer shroud fuel gas hole is arranged on the upper fire cover neighboring, it is characterized in that between moderate heat lid and lower fire cover at least two and main blast tube being arranged, the little interface channel of outer imperial palace that mixed air drain is connected, the ring fuel tank among arranged askew some that is that communicates with mixed air drain is arranged between upper fire cover and moderate heat lid, when combustion gas is entered when mixing air drain by interface channel by main blast tube, because interface channel has certain included angle, can make combustion gas be the rotation shape is full of in the mixed air drain, and middle ring fuel tank and the ejection of outer shroud fuel gas hole by communicating with it, mixing the rotation shape combustion gas that forms in the air drain is to eject in the ring fuel tank from upper fire cover, the gas of ring fuel tank ejection plays main combustion wherein, and the gas of the ring fuel gas hole ejection that outer shroud fuel gas hole and middle internal heat cover plays auxiliary combustion.

The cross sectional shape of above-mentioned middle ring fuel tank is trapezoidal, and outer shroud fuel gas hole cross sectional shape is circular.

Above-mentioned interface channel two side elongated surfaces respectively with the main blast tube center line of interior ring from (non-intersect).

Above-mentioned interface channel two side incline direction is identical with middle ring fuel tank incline direction, the gas that ejects like this has more power, the flame that produces when lighting is the rotation shape, helping to suck more air makes burning more abundant, reduce the discharge of polluting pernicious gas, reach the purpose of energy-saving and emission-reduction, fiery phenomenon is taken off in difficult generation, makes burning more reliable and more stable.

Above-mentioned moderate heat covers first boss of the igniting pin fire tank that band communicates with interior ring blast tube that middle internal heat covers and second boss that thermocouple is protected fiery groove; combustion gas contacts with the spark of igniting pin and is lighted; the flame of ejection is covered with close thermoelectric lotus root, plays the blowout protection effect.

Be distributed with on above-mentioned moderate heat lid and the lower cover opposite position and avoid lighting a fire pin and first circumferential notch, second circumferential notch that prevent the burner rotation.

The first above-mentioned circumferential notch and the angle of second circumferential notch are 82 degree.

The fire tank that communicates with middle ring fuel tank and outer shroud fuel gas hole is arranged on the above-mentioned upper fire cover.

Have along equally distributed three the little interface channels of outer imperial palace that are connected with main blast tube, mixed air drain of main blast tube periphery between above-mentioned moderate heat lid and lower fire cover.

Above-mentioned moderate heat covers and the equipped sector notch that prevents the upper fire cover rotation of upper fire cover.

During the utility model work, the combustion gas of internal heat lid hole ejection during the flame of lighting touches, interior ring fire is lighted, the ring contacts fuel gas that fuel tank sprayed is to the flame of interior ring fire in same, middle ring fire is lighted, because middle ring has the fire tank of connection with outer shroud, flame is ring fire outside fire tank is lighted.In in, outer three ring fires are all lighted, wherein middle ring fire is middle ring fuel tank air feed, gas flow is big, firepower is big, it is main fire, inside and outside ring fire all is an auxiliary combustion, because middle ring fire gas flow is big, it is insufficient to burn, so can produce a large amount of CO during main fire burns, this novel burner is three ring fires, and outer ring fire air feed is a circular port, is characterized in that gas flow is little, firepower is little, but the CO that outer ring fire produces in the time of ring fire in the part can being burnt is through second-time burning, thereby the discharging of reduction CO is discharged far below national standard examination CO.Through experiment, the CO discharge capacity of the utility model burner can reduce 21% than the CO discharge capacity of conventional burners; High by 13%. than the conventional burners thermal efficiency

The utility model burner by traditional inside loop and outside loop fire change in, outer three ring fires, wherein inside and outside two ring fires play auxiliary combustion, in ring fire play main burning, the utility model thermic load is big, flame stabilization, thermal efficiency height, reduce the discharging of dusty gas, energy-conserving and environment-protective.

Description of drawings:

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model schematic perspective view.

Fig. 3 is the lower fire cover structural representation.

Fig. 4 is moderate heat lid structural representation.

Fig. 5 is for being upper fire cover polycrystalline substance schematic diagram.

The specific embodiment:

Referring to Fig. 1～Fig. 5, present embodiment 1 atmospheric burner comprises lower fire cover 1, moderate heat lid 2, the upper fire cover 3 equipped with lower fire cover, and the middle internal heat that is contained in the interior ring fuel gas hole 4 of having of moderate heat tops covers 5.Lower fire cover and moderate heat have covered main blast tube 6.Mixed air drain 7 is arranged between lower fire cover and upper fire cover.Outer shroud fuel gas hole 8 is arranged on the upper fire cover neighboring.Along main blast tube periphery three little interface channels 9 of outer imperial palace that are connected with main blast tube, mixed air drain that equidistantly distribute are arranged between moderate heat lid and lower fire cover.

As shown in Figure 3, between upper fire cover and moderate heat lid the some cross sectional shapes that are arranged askew that communicate with mixed air drain being arranged is trapezoidal middle ring fuel tank 10.Interface channel two side 11 elongated surfaces respectively with the main blast tube center line of interior ring from (non-intersect).Interface channel two side incline direction is identical with middle ring fuel tank incline direction.Moderate heat covers first boss 13 of the igniting pin fire tank 12 that band communicates with interior ring blast tube that middle internal heat covers and second boss 15 that thermocouple is protected fiery groove 14.

Referring to Fig. 2, Fig. 3, Fig. 4, be distributed with the pin and prevent first circumferential notch 16, second circumferential notch 17 that burner revolves of avoiding lighting a fire on moderate heat lid and the lower fire cover opposite position.The angle of first circumferential notch and second circumferential notch is 82 degree.

Referring to Fig. 4, be evenly distributed with three sector notch 18 of preventing upper fire cover rotation equipped on the moderate heat lid neighboring with upper fire cover.

Referring to Fig. 5, the fire tank 19 that communicates with middle ring fuel tank and outer shroud burner port is arranged on upper fire cover.

Claims

1. atmospheric burner, comprise lower fire cover, moderate heat lid, the upper fire cover equipped with lower fire cover, be contained in the middle internal heat lid of the interior ring fuel gas hole of having of moderate heat tops, lower fire cover and moderate heat have covered main blast tube, mixed air drain is arranged between lower fire cover and upper fire cover, the outer shroud fuel gas hole is arranged on the upper fire cover neighboring, it is characterized in that having between moderate heat lid and lower fire cover at least two with main blast tube, mix the little interface channels of outer imperial palace that air drain is connected, between upper fire cover and moderate heat lid the some middle fuel tank that encircles that is arranged askew that communicates with mixed air drain is arranged.

2. atmospheric burner as claimed in claim 1, the cross sectional shape of ring fuel tank is trapezoidal in it is characterized in that, outer shroud fuel gas hole cross sectional shape is circular.

3. atmospheric burner as claimed in claim 1 or 2, it is characterized in that interface channel two side elongated surfaces respectively with the main blast tube center line of interior ring from.

4. atmospheric burner as claimed in claim 1 or 2 is characterized in that interface channel two side incline direction is identical with middle ring fuel tank incline direction.

5. atmospheric burner as claimed in claim 1 or 2 is characterized in that there are first boss of the igniting pin fire tank that band communicates with interior ring fuel gas hole that middle internal heat covers and second boss that thermocouple is protected fiery groove in the moderate heat portion of covering.

6. atmospheric burner as claimed in claim 5 is characterized in that being distributed with on moderate heat lid and the lower fire cover opposite position and avoids lighting a fire pin and first circumferential notch, second circumferential notch that prevent the burner rotation.

7. atmospheric burner as claimed in claim 5, the angle that it is characterized in that first circumferential notch and second circumferential notch are 82 degree.

8. atmospheric burner as claimed in claim 1 or 2 is characterized in that at the last fire tank that communicates with middle ring fuel tank and outer shroud fuel gas hole that covers.

9. atmospheric burner as claimed in claim 1 or 2 is characterized in that having along equally distributed three the little interface channels of outer imperial palace that are connected with the mixed air drain of main blast tube of main blast tube periphery between moderate heat lid and lower fire cover.

10. atmospheric burner as claimed in claim 1 or 2 is characterized in that covering and the equipped sector notch that prevents the upper fire cover rotation of upper fire cover at moderate heat.