Combustor and stove

Abstract

The utility model provides a burner and a stove, and belongs to the technical field of kitchen equipment. The combustor comprises a furnace end, a fire distributor and a first annular gas blocking assembly. The furnace end is provided with an outer ring gas mixing cavity, an inner ring gas mixing cavity, an outer ring injection pipe communicating with the outer ring gas mixing cavity and an inner ring injection pipe communicating with the inner ring gas mixing cavity in a surrounding mode. The fire distributor is arranged at the upper end of the furnace end, an outer ring cavity and an inner ring cavity are formed in the fire distributor in a surrounding mode, the outer ring cavity communicates with the outer ring gas mixing cavity, and the inner ring cavity communicates with the inner ring gas mixing cavity; the first annular gas blocking assembly is arranged in an upper end gas outlet of the outer ring gas mixing cavity or a lower end gas inlet of the outer ring cavity, the first annular gas blocking assembly comprises an annular gas blocking plate and an annular adjusting plate, the annular gas blocking plate is provided with a plurality of first gas holes, and the annular adjusting plate can rotate relative to the annular gas blocking plate; and the annular adjusting plate is provided with second air holes corresponding to the first air holes.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen equipment, in particular to a burner and a stove. Background Art

[0002] Primary air conditioning is an important factor in determining whether gas combustion is sufficient. The conventional solution for primary air conditioning of existing integrated stoves is to provide a wind shield and a paddle movable relative to the wind shield near the nozzle inside the stove. When adjusting the primary air, the paddle is rotated through mechanical transmission or motor drive to change the air inlet area to perform primary air conditioning.

[0003] For integrated stoves, the paddles and wind shield can only form partial holes, and the bracket for installing the regulator will also cause partial obstruction, resulting in reduced and uneven air injection, and insufficient mixing with the gas, which will lead to combustion problems such as high combustion smoke and low thermal efficiency. Secondly, the existing scheme uses mechanical transmission or motor drive adjustment, and the cost of the damper regulator is high. Utility Model Content

[0004] The utility model aims to provide a burner which realizes uniform mixing of air and fuel gas, has low cost and is easy to adjust.

[0005] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0006] According to one aspect of the utility model, a burner is provided, including a burner head, a flame divider and a first annular air baffle assembly, wherein the burner head is surrounded by an outer ring air mixing chamber, an inner ring air mixing chamber, an outer ring ejector tube connected to the outer ring air mixing chamber, and an inner ring ejector tube connected to the inner ring air mixing chamber; the flame divider is arranged at the upper end of the burner head, and the flame divider is surrounded by an outer ring chamber and an inner ring chamber, the outer ring chamber is connected to the outer ring air mixing chamber, and the inner ring chamber is connected to the inner ring air mixing chamber; the first annular air baffle assembly is arranged in the air outlet at the upper end of the outer ring air mixing chamber or in the air inlet at the lower end of the outer ring chamber, the first annular air baffle assembly includes an annular air baffle plate and an annular adjustment plate, the annular air baffle plate is provided with a plurality of first air holes, the annular adjustment plate can rotate relative to the annular air baffle plate, and the annular adjustment plate is provided with second air holes corresponding to each first air hole, and the annular adjustment plate is configured to adjust the air pressure in the outer ring air mixing chamber.

[0007] According to one embodiment of the utility model, an annular step is provided at the upper end of the side wall of the outer ring mixing chamber, the lower end of the annular air baffle plate abuts against the annular step, and the annular adjustment plate is arranged at the upper end of the annular air baffle plate.

[0008] According to one embodiment of the utility model, the upper end surface of the annular adjustment plate is flush with the upper end surface of the side wall of the outer ring mixing chamber, and the lower end of the ignition divider abuts against the upper end surface of the annular side wall of the outer ring mixing chamber and the upper end surface of the annular adjustment plate.

[0009] According to an embodiment of the utility model, the annular air baffle plate includes an annular side wall and an annular top wall fixed to the annular side wall, and the first air hole is located on the annular top wall.

[0010] According to an embodiment of the utility model, a plurality of assembly positioning grooves are arranged on the annular air baffle plate, and a positioning protrusion is arranged on the annular adjustment plate, and the positioning protrusion is plugged into one of the assembly positioning grooves.

[0011] According to an embodiment of the utility model, the assembly positioning groove is located on the hole wall of one of the first air holes.

[0012] According to an embodiment of the present invention, the positioning protrusion is located at the edge of one of the second air holes.

[0013] According to one embodiment of the utility model, it also includes a second annular air baffle assembly, which is arranged at the upper end of the inner annular air mixing chamber and is configured to adjust the air pressure of the inner annular air mixing chamber.

[0014] According to one embodiment of the utility model, the ring widths of the annular air baffle plate and the annular adjustment plate are both smaller than the ring width of the outer ring air mixing chamber, and an annular gap is provided between the inner edge end faces of the annular air baffle plate and the annular adjustment plate and the inner ring surface of the outer ring air mixing chamber.

[0015] According to a second aspect of the utility model, a stove is disclosed, comprising the burner mentioned above, and the stove is a gas stove or an integrated stove.

[0016] An embodiment of the present invention has the following advantages or beneficial effects:

[0017] The utility model discloses a burner, which comprises a burner head, a flame divider and a first annular air baffle assembly. The burner head is surrounded by an outer ring air mixing chamber, an inner ring air mixing chamber, an outer ring ejector tube connected with the outer ring air mixing chamber and an inner ring ejector tube connected with the inner ring air mixing chamber. The flame divider is arranged at the upper end of the burner head. The flame divider is surrounded by an outer ring chamber and an inner ring chamber. The outer ring chamber is connected with the outer ring air mixing chamber, and the inner ring chamber is connected with the inner ring air mixing chamber. The first annular air baffle assembly is arranged in the air outlet at the upper end of the outer ring air mixing chamber or in the air inlet at the lower end of the outer ring chamber. The first annular air baffle assembly comprises an annular air baffle plate and an annular adjustment plate. The annular air baffle plate is provided with a plurality of first air holes. The annular adjustment plate can rotate relative to the annular air baffle plate. The annular adjustment plate is provided with second air holes corresponding to each of the first air holes. The annular adjustment plate is configured to adjust the air pressure in the outer ring air mixing chamber. The burner of the utility model realizes uniform mixing of air and fuel gas by providing an annular air baffle plate and an annular adjustment plate at the air outlet of the outer ring mixing chamber, and not providing an air baffle plate at the air inlet of the outer ring ejector tube. Since the position of the first air hole relative to the second air hole can be adjusted, the air pressure and air intake volume in the outer ring mixing chamber can be adjusted. Since the first annular air baffle assembly has a simple structure and is easy to manufacture, the effect of reducing costs is achieved. Since the first annular air baffle assembly can be seen by removing the ignition divider and the annular adjustment plate can be manually rotated, the effect of easy observation and easy adjustment operation is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features and advantages of the present invention will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0019] Figure 1 is a cross-sectional view of a burner according to an exemplary embodiment.

[0020] Figure 2 yes Figure 1 An enlarged view of part A is shown.

[0021] Figure 3 is a perspective view of a burner head of a burner according to an exemplary embodiment.

[0022] Figure 4 yes Figure 3 An enlarged view of part B is shown.

[0023] The reference numerals are described as follows:

[0024] 1. Burner head; 11. Outer ring gas mixing chamber; 111. Annular step; 12. Inner ring gas mixing chamber; 2. Fire distributor; 21. Outer ring chamber; 22. Inner ring chamber; 23. Gas distributor plate; 24. Fire cover assembly; 3. First annular air baffle assembly; 31. Annular air baffle plate; 311. First air hole; 312. Annular side wall; 313. Annular top wall; 314. Assembly positioning groove; 32. Annular adjustment plate; 321. Second air hole; 322. Positioning protrusion; 33. Annular gap. DETAILED DESCRIPTION

[0025] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0026] The terms "a", "an", "the", and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.

[0027] like Figure 1-4 As shown, a burner according to an embodiment of the utility model comprises a burner head 1, a flame distributor 2 and a first annular air baffle assembly 3.

[0028] The furnace head 1 is surrounded by an outer ring gas mixing chamber 11 and an inner ring gas mixing chamber 12, an outer ring ejector pipe 13 communicating with the outer ring gas mixing chamber 11, and an inner ring ejector pipe 14 communicating with the inner ring gas mixing chamber 12. The air inlet of the outer ring ejector pipe 13 is not provided with a windshield.

[0029] The fire distributor 2 is arranged at the upper end of the burner head 1. The fire distributor 2 includes a gas distributor plate 23 and a fire cover assembly 24. The fire cover assembly 24 includes an outer ring fire cover and an inner ring fire cover. The outer ring fire cover and the gas distributor plate 23 together surround an outer ring cavity 21, and the outer ring cavity 21 is communicated with the outer ring gas mixing cavity 11. The inner ring fire cover and the gas distributor plate 23 together surround an inner ring cavity 22, and the inner ring cavity 22 is communicated with the inner ring gas mixing cavity 12.

[0030] The first annular air baffle assembly 3 is arranged in the air outlet at the upper end of the outer ring air mixing chamber 11. The first annular air baffle assembly 3 includes an annular air baffle plate 31 and an annular adjustment plate 32. The annular air baffle plate 31 is provided with a plurality of first air holes 311. The annular adjustment plate 32 can be rotatably arranged at the upper end of the annular air baffle plate 31 relative to the annular air baffle plate 31, and the annular adjustment plate 32 is provided with second air holes 321 corresponding to each first air hole 311. The annular adjustment plate 32 is configured to adjust the air pressure in the outer ring air mixing chamber 11.

[0031] The principle of regulating the air pressure in the outer ring mixing chamber 11 by the first annular air baffle assembly 3 is as follows: the air enters the outer ring mixing chamber 11 from the outer ring ejector tube 13 under the negative pressure generated by the high-speed combustion gas at the nozzle. Since there is no wind shield plate at the air inlet of the outer ring ejector tube 13, the air will enter the outer ring mixing chamber 11 evenly from all sides and mix with the combustion gas. Since the air enters evenly from all sides, the mixing will be more even than when the air enters locally when a wind shield plate is set. At this time, the amount of air entering the outer ring mixing chamber 11 from the outer ring ejector tube 13 is the largest, the pressure of the mixed gas is relatively large, and then the mixed gas flowing into the outer ring chamber 21 is relatively fast, which is prone to flame separation, failure to ignite and other operating problems during combustion. By arranging an annular air baffle plate 31 and an annular adjustment plate 32 in the air outlet at the upper end of the outer ring mixing chamber 11, the air outlet flow rate is reduced and the pressure in the outer ring mixing chamber 11 is increased, so that the pressure difference between the air pressure at the air inlet of the outer ring ejector pipe 13 and the external environment is reduced, thereby reducing the amount of air ejected into the outer ring mixing chamber 11, thereby avoiding flame separation, ignition failure and the like during combustion.

[0032] Since the annular air baffle plate 31 is provided with a plurality of first air holes 311 , the annular adjustment plate 32 can be rotatably arranged at the upper end of the annular air baffle plate 31 relative to the annular air baffle plate 31 , and the annular adjustment plate 32 is provided with a second air hole 321 corresponding to each first air hole 311 , thereby achieving an effect of adjustable air flow rate.

[0033] For example, when the outer ring fire is too small, remove the flame divider 2 and manually rotate the annular adjustment plate 32 so that the second air hole 321 completely overlaps with the first air hole 311, or mostly overlaps with it, thereby increasing the air outlet flow rate, reducing the air pressure in the outer ring mixing chamber 11, and increasing the air inlet flow rate, thereby increasing the flame of the outer ring fire.

[0034] For example, when the outer ring fire is too large or the flame is separated or cannot be ignited, remove the flame divider 2 and manually rotate the annular adjustment plate 32 so that the second air hole 321 is completely misaligned with the first air hole 311, or most of it is misaligned, so as to reduce the air flow rate and thereby improve the stability of the outer ring fire.

[0035] The burner of the utility model realizes uniform mixing of air and fuel gas by providing an annular air baffle plate 31 and an annular adjustment plate 32 at the air outlet of the outer ring mixing chamber 11, and no wind baffle plate is provided at the air inlet of the outer ring ejector tube 13. Since the position of the first air hole 311 relative to the second air hole 321 can be adjusted, the air pressure and air intake volume in the outer ring mixing chamber 11 can be adjusted. Since the first annular air baffle assembly 3 has a simple structure and is easy to manufacture, the effect of reducing costs is achieved. Since the first annular air baffle assembly 3 can be seen by removing the ignition divider 2 and the annular adjustment plate 32 can be manually rotated, the effect of easy observation and easy adjustment operation is achieved.

[0036] Of course, the first annular air baffle assembly 3 is not limited to being disposed at the upper end portion of the outer ring mixing chamber 11. For example, the first annular air baffle assembly 3 can also be disposed in the air inlet at the lower end portion of the outer ring chamber 21, and the effects of uniform gas mixing, adjustable air pressure and air intake volume can also be achieved. For example, when the first annular air baffle assembly 3 is located in the air inlet at the lower end portion of the outer ring chamber 21, the annular adjustment plate 32 is located at the lower end of the annular air baffle plate 31. When adjustment is required, the ignition distributor 2 is removed and the ignition distributor 2 is turned upside down so that the first annular air baffle assembly 3 can be observed and the annular adjustment plate 32 can be adjusted.

[0037] like Figure 1-4 As shown, in a preferred embodiment of the present utility model, the ring widths of the annular air baffle plate 31 and the annular adjustment plate 32 are both smaller than the ring width of the outer ring gas mixing chamber 11 .

[0038] like Figure 3 As shown, an annular gap 33 is provided between the inner edge end surfaces of the annular air baffle plate 31 and the annular adjustment plate 32 and the inner annular surface of the outer annular gas mixing chamber 11 , so that the evenly mixed gas flows into the ignition distributor 2 through the annular gap 33 .

[0039] like Figure 1-4 As shown, in a preferred embodiment of the present invention, the number of the first air holes 311 is four, the number of the second air holes 321 is correspondingly four, the four first air holes 311 are evenly spaced and arranged, and both the first air holes 311 and the second air holes 321 are arc-shaped holes.

[0040] In a preferred embodiment of the utility model, an annular step 111 is provided at the upper end of the side wall of the outer ring mixing chamber 11, and the lower end of the annular air baffle plate 31 abuts against the annular step 111, so that the annular air baffle plate 31 is installed at the air outlet position of the outer ring mixing chamber 11, and the annular adjustment plate 32 is arranged at the upper end of the annular air baffle plate 31, and the annular air baffle plate 31 supports the annular adjustment plate 32.

[0041] In a preferred embodiment of the present invention, the upper end surface of the annular adjustment plate 32 is flush with the upper end surface of the side wall of the outer ring mixing chamber 11 , so that the side wall of the outer ring mixing chamber 11 limits the annular adjustment plate 32 .

[0042] The lower end of the ignition divider 2 abuts against the upper end surface of the annular side wall of the outer ring gas mixing chamber 11 and the upper end surface of the annular adjustment plate 32, so that the ignition divider 2 presses and fixes the annular adjustment plate 32 to prevent the annular adjustment plate 32 from moving.

[0043] In a preferred embodiment of the present invention, the annular air baffle plate 31 includes an annular side wall 312 and an annular top wall 313 fixed to the annular side wall 312 , and the first air hole 311 is located on the annular top wall 313 .

[0044] In a preferred embodiment of the present utility model, a plurality of assembly positioning grooves 314 are arranged on the annular air baffle plate 31 , and the assembly positioning grooves 314 are arranged in a tooth shape or are a plurality of slots arranged in an arc shape.

[0045] The annular adjustment plate 32 is provided with a positioning protrusion 322 , and the positioning protrusion 322 is plugged into one of the assembly positioning grooves 314 .

[0046] When the positioning protrusion 322 is plugged into different assembly positioning grooves 314, the first air hole 311 and the second air hole 321 overlap at different positions, resulting in different resistances, and the air intake can be adjusted. At the same time, the adjustment can be made intuitively and accurately through different positioning points.

[0047] The specific assembly positioning groove 314 into which the positioning protrusion 322 is plugged needs to be selected and verified based on the user's actual fire usage situation.

[0048] In a preferred embodiment of the present invention, the assembly positioning groove 314 is located on the hole wall of one of the first air holes 311 , and the positioning protrusion 322 is located on the edge of one of the second air holes 321 .

[0049] In a preferred embodiment of the utility model, a second annular air baffle assembly 4 is further included, and the air inlet of the inner ring ejector pipe 14 is not provided with a windshield plate, and the second annular air baffle assembly 4 is provided at the upper end of the inner ring mixing chamber 12, and the second annular air baffle assembly 4 is configured to adjust the air pressure of the inner ring mixing chamber 12 to improve the combustion efficiency of the inner ring fire. The structure of the second annular air baffle assembly 4 is the same or substantially the same as that of the first annular air baffle assembly 3, and those skilled in the art can select the specific structure of the second annular air baffle assembly 4 according to actual needs, which will not be repeated here.

[0050] The utility model also provides a stove, comprising the burner mentioned above, and the stove is a gas stove or an integrated stove.

[0051] The gas stove or integrated stove of the utility model, because it includes the above-mentioned burner, achieves the effects of low cost, uniform mixing of air and gas, improved combustion efficiency, and easy adjustment and operation.

[0052] In the embodiments of the present invention, the term "multiple" refers to two or more than two, unless otherwise clearly defined. The terms "installation", "connection", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0053] In the description of the embodiments of the present invention, it is necessary to understand that the terms "upper" and "lower" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the embodiments of the present invention.

[0054] In the description of this specification, the description of the terms "one embodiment", "a preferred embodiment", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A burner, characterized in that: include A furnace head (1) is surrounded by an outer ring gas mixing chamber (11), an inner ring gas mixing chamber (12), an outer ring ejector pipe (13) communicating with the outer ring gas mixing chamber (11), and an inner ring ejector pipe (14) communicating with the inner ring gas mixing chamber (12); A fire distributor (2) is arranged at the upper end of the burner head (1), and the fire distributor (2) is surrounded by an outer ring cavity (21) and an inner ring cavity (22), wherein the outer ring cavity (21) is communicated with the outer ring gas mixing cavity (11), and the inner ring cavity (22) is communicated with the inner ring gas mixing cavity (12); The first annular air baffle assembly (3) is arranged in the air outlet at the upper end of the outer annular mixing chamber (11) or in the air inlet at the lower end of the outer annular chamber (21), the first annular air baffle assembly (3) comprising an annular air baffle plate (31) and an annular adjustment plate (32), the annular air baffle plate (31) being provided with a plurality of first air holes (311), the annular adjustment plate (32) being rotatable relative to the annular air baffle plate (31), and the annular adjustment plate (32) being provided with second air holes (321) corresponding to each of the first air holes (311).

2. The burner according to claim 1, characterized in that The ring widths of the annular air baffle plate (31) and the annular adjustment plate (32) are both smaller than the ring width of the outer ring gas mixing chamber (11), and an annular gap (33) is provided between the inner edge end surfaces of the annular air baffle plate (31) and the annular adjustment plate (32) and the inner ring surface of the outer ring gas mixing chamber (11).

3. The burner according to claim 1, characterized in that An annular step (111) is provided at the upper end of the side wall of the outer annular mixing chamber (11), the lower end of the annular air baffle plate (31) abuts against the annular step (111), and the annular adjustment plate (32) is arranged at the upper end of the annular air baffle plate (31).

4. The burner according to claim 3, characterized in that The upper end surface of the annular adjustment plate (32) is flush with the upper end surface of the side wall of the outer ring mixing chamber (11), and the lower end of the ignition divider (2) is in contact with the upper end surface of the annular side wall of the outer ring mixing chamber (11) and the upper end surface of the annular adjustment plate (32).

5. The burner according to claim 1, characterized in that The annular air baffle plate (31) comprises an annular side wall (312) and an annular top wall (313) fixedly connected to the annular side wall (312), and the first air hole (311) is located on the annular top wall (313).

6. The burner according to claim 1, characterized in that The annular air baffle plate (31) is provided with a plurality of assembly positioning grooves (314), and the annular adjustment plate (32) is provided with a positioning protrusion (322), and the positioning protrusion (322) is plugged into one of the assembly positioning grooves (314).

7. The burner according to claim 6, characterized in that The assembly positioning groove (314) is located on the hole wall of one of the first air holes (311), and the positioning protrusion (322) is located on the edge of one of the second air holes (321).

8. The burner according to claim 6, characterized in that The assembly positioning grooves (314) are arranged in a tooth shape.

9. The burner according to any one of claims 1 to 8, characterized in that: It also comprises a second annular air baffle component, which is arranged at the upper end of the inner annular air mixing chamber (12), and the second annular air baffle component is configured to adjust the air pressure of the inner annular air mixing chamber (12).

10. A cooking appliance, characterized in that: It comprises the burner described in any one of claims 1 to 9, and the stove is a gas stove or an integrated stove.

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