CN201925928U

CN201925928U - Air inlet double-ejection combustor with guide ejection systems

Info

Publication number: CN201925928U
Application number: CN2011200079922U
Authority: CN
Inventors: 金国强; 邹伟; 钱存; 高少华; 王士勤; 蔡镇成
Original assignee: Zhejiang Huang Zhonghuang Electrical Appliances Co Ltd
Current assignee: Zhejiang Huang Zhonghuang Electrical Appliances Co Ltd
Priority date: 2011-01-12
Filing date: 2011-01-12
Publication date: 2011-08-10
Anticipated expiration: 2021-01-12

Abstract

The utility model discloses an air inlet double-ejection combustor with a plurality of guide ejection systems, which includes an inner combustor head, an outer combustor head, a combustor upper body, and a combustor lower body, wherein the combustor upper body is connected with the combustor lower body, the combustor upper body is further connected with the inner combustor head, the inner combustor head is connected with the outer combustor head, the combustor upper body and the combustor lower body are connected and then form three guide ejection pipes arranged in parallel, three mixed fuel gas channels are further arranged on the combustor upper body, each mixed fuel gas channel is communicated with one guide ejection pipe, a split-flow seat is arranged at the bottom of the combustion lower body, three outer combustor nozzles are arranged on the split-flow seat, and each outer combustor nozzle is positioned at an inlet end of one corresponding guide ejection pipe. After the structure is adopted, the air inlet double-ejection combustor has the advantages of compact and reasonable structure, high heat efficiency, full mixing of fuel gas and air, even fuel gas distribution, and excellent combustion effect.

Description

The two spray burners of last air intake with a plurality of ejection systems

Technical field

The utility model discloses the two spray burners of a kind of last air intake with a plurality of ejection systems, mainly be used in desk-top and the built-in home gas kitchen ranges in, belong to technical field of burner.

Background technology

Two spray burners are meant by two air supply channels provides combustion gas, and have two separate combustion systems, wherein, an air supply channel provides the inner ring required combustion gas of fire and implements driving by a nozzle, the outer ring required combustion gas of fire is provided another passage and by one or several nozzles enforcement drivings, the inner ring fire can be respectively by the control of adjusting gas flow enforcement firepower with the outer ring fire.Gas burner is taken from the position and can be divided into upper inlet wind type burner and following air intake burner by the required primary air of burning, the top that the required primary air of upper inlet wind type burner burning is taken from the kitchen range table top, the below that the required primary air of following air intake burner combustion is taken from the kitchen range table top.Upper inlet wind type burner is divided into horizontal injection tubular type upper inlet wind type burner and vertical injection tubular type upper inlet wind type burner by the induction tunnel distribution form that drives the outer ring fire usually.At present, horizontal injection tubular type upper inlet wind type burner in the application is single injection tubular type, though mixing with air, combustion gas makes moderate progress, but still there is following problem: 1. under the situation of using liquefied petroleum gas, combustion gas mixes still insufficient with air, easily produce yellow flame, especially more obvious when power output is big; 2. because single injection tubular type upper inlet wind type burner need dispose an outer burner nozzle that the aperture is bigger, and this nozzle is installed in usually from position far away, burner center, when the nozzle ejection gas-flow, the air that enters on every side from burner all flows to the nozzle position, it is very inhomogeneous that air-flow is distributed, influence primary air ratio to a certain extent, simultaneously, the part gas-flow that the internal burner nozzle of the air-flow in burner centre sprays of flowing through produces interference effect, and the combustion conditions of inner ring fire is degenerated; 3. owing to be subjected to structural limitations, often there is the sharp turn phenomenon in the induction tunnel outlet of single injection type upper inlet wind type burner with the mixed gas passage connecting place, has obviously increased the injection resistance, influences combustion efficiency; 4. mixed airflow skewness, the flame uniformity is relatively poor.

Summary of the invention

For addressing the above problem, the purpose of this utility model is to provide a kind of two spray burners of last air intake with a plurality of ejection systems, this burner structure compactness, rationally, the thermal efficiency is high, combustion gas mixes with air fully, combustion gas is evenly distributed, and has good combustion efficiency.

The technical scheme that its technical problem that will solve the utility model adopts is: a kind of two spray burners of last air intake with a plurality of ejection systems, comprise an inner burner head, one outer burner head, one burner upper body, one combustor inferior body, wherein the burner upper body is connected with combustor inferior body, on the burner upper body, also be connected with the inner burner head, the inner burner head is connected with the outer burner head, described burner upper body be formed with three horizontally disposed induction tunnels after combustor inferior body is connected, on the burner upper body, also be provided with three air mixture passages, each air mixture passage is communicated with an induction tunnel, bottom in combustor inferior body is provided with distributary base, distributary base is provided with three outer burner nozzles, and each outer burner nozzle all is positioned at the arrival end of a corresponding induction tunnel; On the burner upper body, also be provided with interior fuel gas inlet, inner burner nozzle, thermocouple, igniting pin.The setting of distributary base makes the diameter of three outer burner nozzle air supply channels identical with length, the flow resistance of guaranteeing three passages is identical, pressure are also identical before three outer burner nozzles, thereby the duty of three outer burner nozzles is consistent, for the uniformity of outer ring flame provides guarantee.

Further setting as such scheme: three horizontally disposed described induction tunnels and the air mixture passage that is communicated with it and three outer burner nozzles all along the circumferential direction evenly are provided with, and described outer burner nozzle and induction tunnel are positioned on the same axis.Be provided with like this and make the air stream that enters from burner also be the even distribution of circumference on every side, effectively reduce the interference of internal burner nozzle jet, simultaneously, nozzle adopts three nozzles that the fuel gas injection amount is 1/3 rated value, make air-flow more steady, guarantee that primary air ratio reaches setting.

Be provided with three mixed gas outlets in the combustion outer device head, each mixed gas outlet place also all is provided with a spoiler.These three mixed gas outlets communicate with above-mentioned three air mixture passages respectively, and the effect of spoiler is the control primary air ratio and impels combustion gas and Air mixing more abundant, help improving the uniformity of the thermal efficiency and flame and reduce yellow flame and be inclined to.

Angle between the center line of the air mixture passage that each described induction tunnel center line is communicated with it is 30 degree, is provided with like this and has effectively avoided the sharp turn phenomenon, makes that combustion gas is smooth-going to be turned to, thereby reduces the injection resistance and optimize combustion efficiency.

Be respectively arranged with inner burner lid, outer burner lid on described inner burner head, the outer burner head.

After adopting said structure, the utility model has the advantages that: 1. it is more reasonable, effective that even three the horizontally disposed induction tunnels that are provided with of circumference make the air intake air-flow distribution of burner; 2. the injection resistance is little, and combustion gas mixes fully with air, has good combustion efficiency; 3. thermal efficiency height, flame is even, consistent; 4. power is big, and combustion gas has adaptive capacity preferably for high heating value; 4. compact conformation is convenient to I﹠M.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is a front view of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is that the A-A of Fig. 2 is to cutaway view;

Fig. 4 is the front view after the burner upper and lower body connects;

Fig. 5 is the vertical view of Fig. 4;

Fig. 6 is the utility model explosive view.

The specific embodiment

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, a kind of two spray burners of last air intake with a plurality of ejection systems, comprise an inner burner head 4, one outer burner head 3, one burner upper body 5, one combustor inferior body 6, wherein burner upper body 5 and combustor inferior body 6 are connected by securing member, on burner upper body 5, also be connected with inner burner head 4, inner burner head 4 and outer burner head 3 are connected by securing member, described burner upper body 5 be formed with three horizontally disposed induction tunnels 51 after combustor inferior body 6 is connected, on burner upper body 5, also be provided with three air mixture passages 52, each air mixture passage 52 is communicated with an induction tunnel 51, be provided with distributary base 7 in the bottom of combustor inferior body 6, distributary base 7 is provided with three outer burner nozzles 71, and each outer burner nozzle 71 all is positioned at the arrival end of a corresponding induction tunnel 51; Fuel gas inlet 53, inner burner nozzle 56, thermocouple 54, igniting pin 55 on burner upper body 5, also being provided with.

Three horizontally disposed described induction tunnels 51 and the air mixture passage 52 that is communicated with it and three outer burner nozzles 71 all along the circumferential direction evenly are provided with, and described outer burner nozzle 71 is positioned on the same axis with induction tunnel 51.Be provided with three mixed gas outlets 31 in the combustion outer device head 3, these three mixed gas outlets 31 communicate with above-mentioned three air mixture passages 52 respectively, so just form the passage of carrying air mixture, also all be provided with a spoiler 32 at each mixed gas outlet 31 place.Angle between the center line of the air mixture passage 52 that each described induction tunnel 51 center line is communicated with it is 30 degree.Be respectively arranged with inner burner lid 1, outer burner lid 2 on described inner burner head 4, the outer burner head 3.

Form between combustion outer device head 3 and the burner upper body 5 for extraneous air and enter the inner passage of burning, from then on the air that enters of passage is used for required primary air of inside and outside induction tunnel and the required auxiliary air of inner burner.

The utility model has two separate combustion systems, one of them is: the combustion gas with certain pressure enters distributary base 7 and enters three horizontal induction tunnels 51 from three outer burner nozzles, 71 ejection backs with air from outer burner fuel gas inlet 72, gas-air enters outer burner head 3 places through induction tunnel 51, air mixture passage 52, mixed gas outlet 31, spoiler 32, flow out and burning from the fire hole of outer burner head 3, the required auxiliary air that burns is taken from the fire hole ambient air.Another is: the combustion gas with certain pressure enters the burner upper body and enters inner burner perforation 41 from inner burner nozzle 56 ejection backs with primary air from interior fuel gas inlet 53, gas-air flows out and burning through the fire hole that inner burner perforation 41 enters inner burner head 4, and the required auxiliary air that burns is taken from from the air that enters between outer burner head and the burner upper body.

Claims

1. two spray burners of the last air intake with a plurality of ejection systems, it is characterized in that: comprise an inner burner head (4), one outer burner head (3), one burner upper body (5), one combustor inferior body (6), wherein burner upper body (5) are connected with combustor inferior body (6), on burner upper body (5), also be connected with inner burner head (4), inner burner head (4) is connected with outer burner head (3), described burner upper body (5) be formed with three horizontally disposed induction tunnels (51) after combustor inferior body (6) is connected, on burner upper body (5), also be provided with three air mixture passages (52), each air mixture passage (52) is communicated with an induction tunnel (51), be provided with distributary base (7) in the bottom of combustor inferior body (6), distributary base (7) is provided with three outer burner nozzles (71), and each outer burner nozzle (71) all is positioned at the arrival end of a corresponding induction tunnel (51); On burner upper body (5), also be provided with interior fuel gas inlet (53), inner burner nozzle (56), thermocouple (54), igniting pin (55).

2. the two spray burners of last air intake with a plurality of ejection systems according to claim 1, it is characterized in that: three horizontally disposed described induction tunnels (51) and the air mixture passage (52) that is communicated with it and three outer burner nozzles (71) all along the circumferential direction evenly are provided with, and described outer burner nozzle (71) is positioned on the same axis with induction tunnel (51).

3. the two spray burners of last air intake with a plurality of ejection systems according to claim 1, it is characterized in that: be provided with three mixed gas outlets (31) in the combustion outer device head (3), each mixed gas outlet (31) locates also all to be provided with a spoiler (32).

4. the two spray burners of last air intake with a plurality of ejection systems according to claim 1, it is characterized in that: the angle between the center line of the air mixture passage (52) that each described induction tunnel (51) center line is communicated with it is 30 degree.

5. the two spray burners of last air intake with a plurality of ejection systems according to claim 1 is characterized in that: be respectively arranged with inner burner lid (1), outer burner lid (2) on described inner burner head (4), the outer burner head (3).