CN109114555B

CN109114555B - Burner of burner

Info

Publication number: CN109114555B
Application number: CN201811172032.4A
Authority: CN
Inventors: 任富佳; 柳发威; 颜运宇
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2018-10-09
Filing date: 2018-10-09
Publication date: 2023-10-03
Anticipated expiration: 2038-10-09
Also published as: CN109114555A

Abstract

The invention discloses a burner head of a burner, which comprises an inner ring mixing cavity, an outer ring mixing cavity, a secondary air supplementing channel and a channel area arranged between the inner ring mixing cavity and the outer ring mixing cavity, wherein an airflow channel for communicating the channel area with the outside atmosphere is arranged on the side wall of the outer ring mixing cavity, an upper bottom wall and a lower bottom wall which are arranged at intervals up and down are arranged below the channel area, secondary air supplementing holes are arranged in the interval area between the upper bottom wall and the lower bottom wall, one end of each secondary air supplementing hole is communicated with the channel area, and the other end of each secondary air supplementing hole is communicated with the atmosphere below the burner head. According to the invention, the air at the lower part of the burner is communicated with the channel area at the upper part of the burner to form a secondary air supplementing channel of the burner, so that air is supplemented upwards from the lower part of the burner to form a multi-angle supplementing state of combustion air of the burner, the combustion efficiency of the burner is greatly improved, the requirement of a high-power burner for supplementing more combustion air is met, and a foundation is provided for the design of the high-power burner.

Description

Burner of burner

Technical Field

The invention relates to the field of kitchen gas stoves, in particular to a stove head of a combustor.

Background

The outer ring mixing cavity of the current household gas stove burner is provided with a secondary air supplementing channel which communicates a channel area between the inner ring mixing cavity and the outer ring mixing cavity with the outside atmosphere, and the outer side wall of the outer ring fire cover extends downwards to shield the channel. Although the burner looks more beautiful, the shielding of the outer ring fire cover on the secondary air supplementing channel also prevents the smooth supplement of secondary air, the burning of the inner ring flame is insufficient, the yellow flame phenomenon is easy to occur, and even the CO in the tail gas after burning exceeds the standard, so that serious potential safety hazard is formed. Meanwhile, the supply of the combustion air is not in place, so that the combustion efficiency of the burner is also greatly reduced. Because the secondary air supplementing amount is reduced, the combustion of different types of air sources is difficult to meet, the air source adaptability of the burner is not strong, and good combustion working conditions are difficult to achieve.

In addition, because secondary air of the inner ring flame is insufficient, after the cooker is placed on a cooker rack of the burner, the phenomenon of flameout of the cooker is easy to occur, and poor use experience is brought to the household burner.

Disclosure of Invention

Aiming at the problems existing in the prior art, the invention aims to provide the burner which has the advantages of full secondary air supplement, simple structure, safety, reliability, energy conservation and high efficiency.

In order to achieve the above purpose, the technical scheme of the invention is as follows:

the utility model provides a furnace end, includes interior, outer ring mixing chamber and secondary air supplement channel, and set up in interior ring mixing chamber with be suitable for between the outer ring mixing chamber with the passageway region that secondary air supplement channel is linked together, be provided with the intercommunication on the lateral wall of outer ring mixing chamber the passageway of passageway region and outside atmosphere, passageway region below is provided with upper and lower diapire that is the interval setting from top to bottom, upper and lower diapire meet or partly overlap in the projection of vertical orientation of lower diapire, and in upper and lower diapire interval region is equipped with secondary air supplement hole, secondary air supplement hole one end intercommunication passageway region, the other end communicates with the atmosphere below the furnace end.

Further, the secondary air supplement hole is hidden and arranged right below the upper bottom wall.

Further, an edge portion of the lower bottom wall near one end of the upper bottom wall is provided with an upward protruding rim.

Further, the secondary air supplementing holes are a plurality of round holes or special-shaped holes which are adjacently arranged at intervals.

Further, the secondary air supplementing hole is an annular gap.

Further, the secondary air supplementing hole is an annular long hole surrounding the inner ring mixing cavity, the annular long hole is arranged close to the radial outer side wall of the inner ring mixing cavity and is positioned between the inner ring mixing cavity and the lower bottom wall.

Further, the upper bottom wall is arranged on the radial outer side wall of the inner ring mixing cavity, and the inner ring mixing cavity and the upper bottom wall are of an integrated structure.

Further, the lower bottom wall is an annular platform surrounding the annular long hole.

Further, the edge of the upper bottom wall is disposed beyond the outer edge of the rim.

Further, the edge of the upper surface of the upper bottom wall is an inclined surface extending downwards and outwards.

Further, the lower edge of the radially inner side end of the air flow channel is flush with the upper surface of the lower bottom wall; the upper surface of the upper bottom wall is an inclined plane which is convenient for guiding the liquid on the upper bottom wall to the lower bottom wall.

According to the burner disclosed by the invention, the secondary air supplementing holes are formed in the interval area between the upper bottom wall and the lower bottom wall to conduct the channel area between the atmosphere at the lower part of the burner and the inner and outer ring mixing cavities, so that a new secondary air supplementing channel of the burner is formed, and the secondary air supplementing channel is matched with the secondary air supplementing channel on the outer ring mixing cavities in the prior art, so that a multi-angle supplementing state of combustion air in the combustion process of the burner is formed, enough oxygen required by combustion is provided, the combustion efficiency of the burner is improved greatly, and the burner is energy-saving and efficient. Meanwhile, the requirement of supplying more combustion air for the high-power burner is met, and a foundation is provided for the design of the high-power burner.

As the upper bottom wall of the secondary air supplementing hole shielding structure, residues or soup which are scattered into the channel area are effectively intercepted, the residues or soup is prevented from falling into a cabinet at the lower part of the burner, and the cleaning difficulty of the gas stove is reduced; the liquid scattered on the top surface of the upper bottom wall can be guided to the upper surface of the lower bottom wall of the channel area, and then discharged to the liquid containing disc through the original secondary air supplementing channel on the side wall of the outer ring mixing cavity, so that the cleanliness of the burner is enhanced. A significant improvement is achieved both from the point of view of implementing the functionality and from the point of view of user experience.

The secondary air supplementing hole can be a round hole or a special-shaped hole on the lower bottom wall according to specific actual arrangement, and can also be an annular long hole extending in the channel area, so that the machining flexibility is enhanced.

The edge on the lower bottom wall matched with the upper bottom wall can effectively enclose and block the liquid falling from the upper part of the burner on the lower bottom wall, thereby fundamentally avoiding the possibility that the liquid drops to the lower part of the secondary air supplementing hole.

Through changing current air filling mode, secondary air supplementing channel combines together with current secondary air supplementing channel, can effectually supplement the secondary air from three-dimensional multi-angle, makes the combustion condition of combustor obtain obvious improvement. Therefore, from the angle of sufficient supplement of secondary air, the burner head of the burner can meet the combustion requirements of more types of air sources, and provides more various and flexible choices for the use of the burner.

Drawings

FIG. 1 is a schematic perspective view of a burner of the present invention without a fire cover installed thereon;

FIG. 2 is a top view of the fire lid of FIG. 1 after installation;

FIG. 3 is a cross-sectional view taken along the direction A-A of FIG. 2;

fig. 4 is a partial enlarged view of fig. 3.

In the figure: the device comprises a furnace end 1, an inner ring mixing cavity, an inner ring fire cover 2-1, an inner ring fire cover fire outlet hole 2-11, an outer ring mixing cavity 3, an outer ring fire cover 3-1, an inner ring fire outlet hole 3-11, an outer ring fire outlet hole 3-12, a horizontal through hole 3-2, an upper bottom wall 4, a secondary air supplementing channel 5, an existing secondary air supplementing channel 6, a lower bottom wall 7, an edge 7-1, a channel area 8 and an annular long hole 9.

Description of the embodiments

In order to clearly illustrate the design concept of the present invention, the present invention will be described with reference to examples.

In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "horizontal", "top", "bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Example 1

As shown in the examples of fig. 1 and 3, a burner 1 of the present invention comprises an inner ring mixing chamber 2, an outer ring mixing chamber 3, and a secondary air supplementing channel 5, and a channel region 8 provided between the inner ring mixing chamber 2 and the outer ring mixing chamber 3 and adapted to communicate with the secondary air supplementing channel 5, an upper bottom wall 4 and a lower bottom wall 7 provided below the channel region 8 at an upper and lower interval, the projection portions of the upper bottom wall 4 and the lower bottom wall 7 in the vertical direction overlap, and an annular long hole 9 as a secondary air supplementing hole is provided at the interval between the upper bottom wall 4 and the lower bottom wall 7, one end of the annular long hole 9 communicates with the channel region 8, and the other end communicates with the atmosphere below the burner 1.

In this embodiment, the open cavity at the lower part of the burner is used as an external atmosphere space, and the secondary air supplementing hole with the shape of the annular slot hole forms a newly added air flow channel, the newly added air flow channel communicates the channel area between the atmosphere at the lower part of the burner and the gas mixing cavity, and the newly added secondary air supplementing channel 5 is formed to enable the secondary air supplement of the burner to be more sufficient, so that the gas combustion is more sufficient, and the condition that yellow flame or CO is generated due to insufficient gas combustion is avoided while the combustion efficiency of the burner is improved. In the embodiment, the problem that the power of the burner is limited by the structural size is solved by additionally arranging the airflow channel, the heat load of the gas stove is improved, the power of the burner is increased, the exhaust emission in the combustion tail gas is lower, and the burner has the advantages of energy conservation, emission reduction and environmental protection.

In addition, through changing the air filling mode of combustor, make the secondary air not only can follow the side of original outer ring mixing chamber and get into the combustor, can also form the multi-angle three-dimensional state of opening the cavity and mending wind to combustor upper portion by the furnace end lower part, effectively improved the combustion condition of combustor, can satisfy the combustion requirement of more types air source, improve the flexibility ratio that the combustor used.

Example 2

As in the examples of fig. 1 and 3, the burner 1 of the present invention comprises an inner ring mixing cavity 2 and an outer ring mixing cavity 3, a channel region 8 is arranged between the inner ring mixing cavity 2 and the outer ring mixing cavity 3, an upper bottom wall 4 and a lower bottom wall 7 are arranged below the channel region 8 at intervals, annular long holes 9 for communicating the channel region 8 with the outside atmosphere are arranged in the interval regions of the upper bottom wall 4 and the lower bottom wall 7, the annular long holes 9 are hidden and arranged right below the upper bottom wall 4, surround the inner ring mixing cavity 2, and are arranged close to the radial outer side wall of the inner ring mixing cavity 2, and are used for supplementing secondary air required for combustion into the channel region 8. The inner ring mixing cavity 2, the annular long hole 9 and the outer ring mixing cavity 3 which are distributed from inside to outside are concentrically arranged, and the annular long hole 9 conducts the open cavity at the lower part of the burner 1 with the channel area 8 to form a secondary air supplementing channel 5 of the burner. The air flow passages in this embodiment may be circular holes arranged circumferentially or uniformly at intervals on the lower bottom wall, in addition to the annular long hole form given. The annular long hole is formed by excavating an annular through hole on the lower bottom wall to form an annular gap secondary air supplementing hole, so that air is supplemented from an open cavity at the lower part of the furnace end into a channel area more directly and smoothly, the structure is simple, and the supplementing air quantity is large; the circular holes of the secondary air supplementing holes which are circumferentially or uniformly distributed at intervals enable the appearance of the burner to be tidier. Besides concentric arrangement, the inner ring mixing cavity and the outer ring mixing cavity can be in eccentric arrangement, and certain channel areas are reserved between the gas mixing cavities. The concentric arrangement of the inner ring mixing cavity and the outer ring mixing cavity is more favorable for uniformly supplementing secondary air, so that combustion flame is more stable.

Referring to fig. 2, an inner ring fire cover 2-1 is mounted on the top of the inner ring mixing cavity 2, an outer ring fire cover 3-1 is mounted on the top of the outer ring mixing cavity 3, so that secondary air passing through an air flow channel on the lower bottom wall is correspondingly fed into a channel area 8 between the inner ring fire cover and the outer ring fire cover, inner ring fire holes 3-11 and outer ring fire holes 3-12 are respectively formed in the outer ring fire cover 3-1 along the circumferential direction, the inner ring fire holes 3-11 are opposite to the inner ring fire holes 2-11 of the inner ring fire cover 2-1 of the burner, and the inner ring fire holes and the outer ring fire cover are in opposite facing relation, so that a newly-added secondary air supplementing channel 5 mostly feeds secondary air to combustion flames of the inner ring fire holes 3-11 and the inner ring fire cover 2-1.

Referring to fig. 3, the lower bottom wall 7 is an annular flat plate surrounding an annular long hole 9, the annular long hole 9 is provided between the inner annular mixing chamber 2 and the lower bottom wall 7, an upwardly protruding rim 7-1 is provided at an end edge portion of the lower bottom wall 7 near the upper bottom wall 4, a top surface of the rim 7-1 is higher than an upper surface of the lower bottom wall 7, and the rim 7-1 separates the annular long hole 9 from the upper surface of the lower bottom wall 7. On the radially outer side wall of the inner ring mixing cavity 2 of the burner 1, a shielding structure shielding the annular long hole 9 and the edge 7-1 from above in the vertical direction is circumferentially arranged, the inner ring mixing cavity 2 and the shielding structure are of an integrated structure, and the shielding structure in the embodiment is specifically formed as an upper bottom wall 4. The upper bottom wall is arranged on the radial outer side wall of the inner ring mixing cavity in the embodiment and corresponds to the arrangement mode that the annular long hole is close to the radial outer side wall of the inner ring mixing cavity; of course, if the annular slot is disposed adjacent to the radially inner side wall of the outer annular mixing chamber, the upper bottom wall may also be correspondingly disposed on the radially inner side wall of the outer annular mixing chamber. The two setting modes can meet the requirement of secondary air supply, and provide a certain flexibility for specific processing production.

In this embodiment, the upper bottom wall 4 is disposed above the rim 7-1, and the radially outer edge of the upper bottom wall 4 extends to the upper portion of the upper surface of the lower bottom wall 7 and passes over the outer edge of the rim 7-1, so as to form a projection overlapping structure of the upper bottom wall 4 and the lower bottom wall 7 in the vertical direction, so as to ensure that sundries can fall into the circumferential outer side of the rim 7-1 in the vertical direction. Through last diapire, can effectually intercept residue or juice in the cooking process, in addition go up the cooperation of diapire and border, can guide residue or juice to on the diapire top surface down, prevent debris and fall into the cavity of furnace end lower part, reduce the follow-up clearance degree of difficulty. The edge in this embodiment acts as a "weir" to effectively block liquid such as spilled soup from the upper surface of the bottom wall 7. The design of the invention not only meets the requirement of secondary air supply, but also can effectively ensure the cleanliness of the burner, and has very obvious improvement on the use function of the kitchen range on the basis of not losing the effect of the prior art.

Referring to fig. 1, in combination with fig. 3, on the side wall of the outer ring mixing chamber 3, air flow passages communicating the passage area 8 with the outside atmosphere are provided at intervals, the air flow passages are in the form of three uniformly distributed horizontal through holes 3-2, the existing secondary air supplementing passage 6 of the burner is formed, and the lower edge of the radially inner side end of the horizontal through holes 3-2 is flush with the upper surface of the lower bottom wall 7. When "pot-over" occurs during cooking, liquid first flows down into the channel region 8, is guided onto the plane of the lower bottom wall 7 by shielding of the upper bottom wall 4, and finally is collected onto a liquid-carrying tray (not shown) at the periphery of the burner 1 through the horizontal through holes 3-2. The horizontal through hole 3-2 is matched with the upper bottom wall 4, the edge 7-1 and the lower bottom wall 7 on the premise of meeting the secondary air supplementing function, so that the using cleanliness of the burner is further ensured. In addition, the inner side of the outer ring fire cover 3-1 and the outer edge of the top of the outer ring mixing cavity 3 are respectively provided with engineering steps, and the engineering steps are matched with each other, so that the outer ring fire cover 3-1 can be ensured to be installed on the outer ring mixing cavity 3, the bottom surface of the outer ring fire cover 3-1 is higher than the upper surface of the lower bottom wall 7, the sealing shielding of the outer ring fire cover 3-1 to the bottom of the horizontal through hole 3-2 is avoided, and the scattered liquid can be completely discharged through the horizontal channel 3-2 flush with the lower bottom wall 7.

The edge of the upper surface of the upper bottom wall is an inclined surface extending downwards and outwards, so that soup can flow or drop onto the lower bottom wall more smoothly.

In this embodiment, the open cavity at the lower part of the burner 1 is communicated with the channel area 8, and the secondary air supplementing channel 5 is formed, so that air is supplemented to the channel area 8 from the cabinet space at the bottom of the burner 1 upwards through the upper bottom wall 4, and after the fire covers are respectively arranged at the top of the gas mixing cavity, the secondary air is correspondingly supplemented to the channel area between the inner ring fire cover 2-1 and the outer ring fire cover 3-1, thereby realizing the more sufficient technical effect of supplementing combustion air and greatly improving the combustion efficiency.

In the prior art, the existing secondary air supplementing channel 6 can only effectively supplement air to the outer ring fire hole 3-12 of the outer ring fire cover 3-1, and the combustion of the inner ring fire hole 3-11 and the inner ring fire cover fire hole 2-11 can cause insufficient combustion of fuel gas, low combustion efficiency, CO harmful gas in tail gas and the like due to lack of secondary air supplementing. The newly-added secondary air supplementing channel 5 (the annular long hole 9) realizes omnibearing and multi-angle three-dimensional secondary air supplementing, forms a lower air inlet and side air inlet supplementing state, is more beneficial to improving the heat load of the gas stove, increases the power of the burner, reduces the exhaust emission in the combustion tail gas, has a simple structure, is safe and reliable, saves energy and reduces emission, and is environment-friendly.

In this embodiment, the upper bottom wall 4 is disposed on the radially outer side wall of the inner ring mixing cavity 2, and the bottom surface of the upper bottom wall 4 is higher than the lower bottom wall 7 of the channel region 8, and a secondary air supplementing channel 5 of the burner is formed by a gap formed between the upper bottom wall 4 and the lower bottom wall 7, so that secondary air can be effectively supplemented upwards from the open cavity at the lower part of the burner 1, and finally secondary air is supplemented to the inner ring flame cover flame and the inner ring flame outlet flame of the outer ring flame cover through the annular long hole 9, so as to ensure sufficient oxygen required by combustion. And the upper bottom wall 4 is matched with the edge 7-1, so that the problem of cleaning the gas stove after the hole is formed can be solved, the functional parameters of the burner and the gas stove are greatly improved through the improvement of equipment, and good use experience is brought to users. The specific structure of the upper bottom wall 4 and the cooperation relationship between the upper bottom wall 4 and the lower bottom wall 7 are shown in detail in fig. 4.

The secondary air supplementing hole is not limited to the annular long hole formed in the lower bottom wall or the circular hole formed in the lower bottom wall in the circumferential direction, and the lower bottom wall may be connected to the outer side wall of the inner ring mixing cavity, and a plurality of square holes, polygonal columnar holes, or other special-shaped holes may be formed in the lower bottom wall. The axis of the through hole can be perpendicular to the plane of the lower bottom wall or can be obliquely communicated. Of course, besides the upper bottom wall provided by the invention, the shielding structure can also be a hollowed-out decorative retainer ring, and secondary air supplementing holes arranged on the lower bottom wall can be effectively covered.

It is important to emphasize that the secondary air supplementing hole in the invention is formed by simple improvement on the basis of the existing burner, and is convenient to process. The space of the cabinet at the lower part of the burner is effectively utilized, air in the cabinet is led to the burner, secondary air can be supplemented to inner ring flames of the inner ring flames and the outer ring flames, and the secondary air is matched with the air supplementing channel in the prior art, so that a three-dimensional multi-angle supplementing state of the secondary air from the bottom and the side face of the burner is formed. The combustion efficiency of the fuel gas is greatly improved, the heat load of the burner can be improved by at least 30%, the space utilization rate of the cabinet is improved, air is fed into the combustion flame from the bottom of the burner through the gap of the cabinet, and the requirement of supplying more combustion air for the high-power burner is met. In addition, the oxygen required by combustion is sufficiently supplemented, so that the combustion requirements of different types of air sources can be met, and more various flexible choices are provided for the use of the burner.

It should be noted that some of the structures may be selected differently than the specific examples given above. For example, the gas mixing cavity arranged on the burner 1, besides the circular ring provided by the embodiment, the gas mixing cavity can also be a square ring, and the shapes of the corresponding channel area, the annular long hole, the upper bottom wall and the edge are square, and the shape can also be other conventional various choices. 2. The fire outlet of the outer ring fire cover can also be a single ring fire outlet. Etc., which are made by those skilled in the art based on their basic skills based on understanding the idea of the invention, and are not exemplified here.

Finally, it is to be understood that the above embodiments are merely exemplary embodiments employed for the purpose of illustrating the principles of the present invention, however, the present invention is not limited thereto. Various modifications and improvements may be made by those skilled in the art without departing from the principles and spirit of the invention, and such modifications and improvements are also considered within the scope of the invention.

Claims

1. The utility model provides a combustor furnace end, includes interior, outer ring mixing chamber and secondary air supplement passageway, and set up in interior ring mixing chamber with be suitable for between the outer ring mixing chamber with the passageway region that secondary air supplement passageway is linked together, be provided with on the lateral wall of outer ring mixing chamber and communicate passageway region and the air current passageway of outside atmosphere, its characterized in that, passageway region below is provided with upper bottom wall and the lower diapire that is upper and lower interval setting, upper bottom wall with lower diapire meets or partly overlaps in the projection of vertical direction, and in upper bottom wall with the interval region of lower diapire is equipped with secondary air supplement hole, secondary air supplement hole one end intercommunication passageway region, the other end communicates with the atmosphere of furnace end below.

2. The burner of claim 1, wherein the secondary air supplemental aperture is concealed directly below the upper bottom wall.

3. Burner according to claim 1 or 2, wherein the edge portion of the end of the lower bottom wall adjacent to the upper bottom wall is provided with an upwardly projecting rim.

4. Burner according to claim 1 or 2, wherein the secondary air supplementing holes are a plurality of round holes or profiled holes arranged adjacently at intervals.

5. Burner according to claim 1 or 2, wherein the secondary air supplementing holes are annular gaps.

6. The burner of claim 5, wherein the secondary air supplemental aperture is an annular elongated aperture surrounding the inner annular mixing chamber, the annular elongated aperture being disposed proximate a radially outer sidewall of the inner annular mixing chamber and between the inner annular mixing chamber and the lower bottom wall.

7. The burner of claim 1, wherein the upper bottom wall is disposed on a radially outer sidewall of the inner annular mixing chamber, the inner annular mixing chamber being of unitary construction with the upper bottom wall.

8. The burner of claim 6 wherein the lower bottom wall is an annular platform surrounding the annular slot.

9. A burner as claimed in claim 3, wherein the edge of the upper bottom wall is disposed beyond the outer edge of the rim.

10. The burner of claim 7 wherein the upper surface of the upper bottom wall has an edge that is beveled to extend obliquely downwardly to the outside.