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 combustor body and a first flame stabilizing plate, the combustor body comprises a furnace end, a gas distribution disc, an outer fire cover and an inner fire cover, the furnace end is provided with an inner ring cavity and an outer ring cavity surrounding the inner ring cavity, the inner ring cavity is provided with a first gas channel opening, the gas distribution disc is arranged at the upper end of the outer ring cavity, and the outer fire cover is arranged on the gas distribution disc; the inner fire cover is arranged at the upper end of the inner ring cavity, the first flame stabilizing plate comprises an arc-shaped bottom wall and an arc-shaped side wall, the arc-shaped bottom wall is arranged in the inner ring cavity or the inner fire cover corresponding to the first gas channel opening, the lower end of the arc-shaped side wall is fixedly connected to the outer edge of the arc-shaped bottom wall, and a space for gas to pass through is formed between the upper end of the arc-shaped side wall and the top wall of the inner fire cover.

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] The velocity of the fuel-air mixture at the burner head and the gas outlet of the gas distribution plate is faster than that at other positions, and the flame coming out of the fire hole of the fire cover corresponding to the gas outlet is longer than that at other positions. On the one hand, the flames are uneven in length, which not only affects the appearance of the product fire, but also affects the user's cooking experience due to uneven heating; on the other hand, the velocity at the gas outlet is too fast, which can easily cause the flame to separate from the fire hole or form a whistling sound.

[0003] In order to solve the uneven flow rate, an arc-shaped baffle is generally added to the burner gas outlet. Although the arc-shaped baffle slows down the gas flow rate, blocking the gas outlet over a large area will reduce the burner's induced ejection performance and greatly increase the carbon monoxide concentration in the combustion exhaust gas. Utility Model Content

[0004] The utility model aims to provide a burner which can extend the path of gas flow, reduce the gas pressure at the inner fire hole corresponding to the first gas channel opening, reduce the pressure difference at each inner fire hole, avoid flame howling, and thus achieve uniform flame length without affecting the primary air injection.

[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, comprising a burner body and a first flame-stabilizing plate, the burner body comprising a burner head, a gas distribution plate, an outer fire cover and an inner fire cover, the burner head comprising an inner ring cavity and an outer ring cavity surrounding the inner ring cavity, the inner ring cavity having a first air duct opening, the gas distribution plate being arranged at the upper end of the outer ring cavity, the outer fire cover being arranged on the gas distribution plate; the inner fire cover being arranged at the upper end of the inner ring cavity, the first flame-stabilizing plate comprising an arcuate bottom wall and an arcuate side wall, the arcuate bottom wall being arranged in the inner ring cavity or the inner fire cover corresponding to the first air duct opening, the lower end of the arcuate side wall being fixedly connected to the arcuate bottom wall, and a spacing for allowing gas to pass between the upper end of the arcuate side wall and the top wall of the inner fire cover.

[0007] According to an embodiment of the present invention, the angle between the arc-shaped side wall and the arc-shaped bottom wall is 70-150 degrees.

[0008] According to one embodiment of the utility model, the first flame stabilizing plate also includes an annular wall, the outer wall of the annular wall is fixedly connected to the inner edge of the arc-shaped bottom wall, the center of the burner head has an installation cavity, and the annular wall is sleeved in the installation cavity or the inner ring cavity.

[0009] According to one embodiment of the utility model, the annular wall is sleeved in the installation cavity, the lower end surface of the inner edge side wall of the inner fire cover abuts against the upper end surface of the arc-shaped bottom wall, and a plurality of inner fire holes are opened on the inner edge side wall of the inner fire cover.

[0010] According to an embodiment of the utility model, a first annular step is provided at an upper end portion of a side wall of the installation cavity, and a lower end surface of the annular wall abuts against the first annular step.

[0011] According to one embodiment of the utility model, a positioning groove is formed in the first annular step, and a protrusion is provided at the lower end of the annular wall. When the protrusion is inserted into the positioning groove, the arcuate bottom wall and the arcuate side wall are located directly above the first airway opening.

[0012] According to an embodiment of the utility model, a second annular step is provided on the outer wall surface of the annular wall, and the second annular step abuts against the upper end surface of the annular side wall of the inner annular cavity.

[0013] According to an embodiment of the utility model, the burner body further comprises an ignition needle, the ignition needle is arranged in the installation cavity, and an ignition hole communicating with the inner annular cavity is opened in the annular wall corresponding to the ignition needle.

[0014] According to one embodiment of the utility model, it also includes a second flame stabilizing plate, the outer ring cavity has a second airway opening, the second flame stabilizing plate is fixedly connected to the gas distribution plate or the outer ring cavity, and the second flame stabilizing plate is located above the second airway opening.

[0015] The utility model also discloses a stove, comprising the burner.

[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 body and a first flame-stabilizing plate. The burner body comprises a burner head, a gas distribution plate, an outer fire cover and an inner fire cover. The burner head comprises an inner ring cavity and an outer ring cavity surrounding the inner ring cavity. The inner ring cavity has a first air passage opening. The gas distribution plate is arranged at the upper end of the outer ring cavity. The outer fire cover is arranged on the gas distribution plate. The inner fire cover is arranged at the upper end of the inner ring cavity. The first flame-stabilizing plate comprises an arcuate bottom wall and an arcuate side wall. The arcuate bottom wall is arranged in the inner ring cavity or the inner fire cover corresponding to the first air passage opening. The lower end of the arcuate side wall is fixedly connected to the outer edge of the arcuate bottom wall. There is a spacing between the upper end of the arcuate side wall and the top wall of the inner fire cover for allowing gas to pass. In this way, the air-fuel mixture flows from the first airway opening to the curved bottom wall, and the curved bottom wall guides the gas to the curved side walls. Under the joint guidance of the curved side walls and the top wall of the inner fire cover, the gas flows into the cavity from the said spacing, and then the gas turns downward and finally burns at the fire hole, thereby extending the gas flow path, reducing the gas pressure of the inner fire hole corresponding to the first airway opening, reducing the air pressure difference at each inner fire hole, avoiding flame howling, and thus achieving uniform flame length without affecting the primary air injection. 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 perspective view of a burner according to an exemplary embodiment.

[0020] Figure 2 is a cross-sectional view of a burner according to an exemplary embodiment.

[0021] Figure 3 yes Figure 2 Enlarged view of part A.

[0022] Figure 4 is an exploded view of an inner fire cover and a burner head according to an exemplary embodiment.

[0023] Figure 5 is a perspective view of a first flame stabilizing plate according to an exemplary embodiment.

[0024] Figure 6 is a bottom structural diagram of a first flame stabilizing plate according to an exemplary embodiment.

[0025] Figure 7 is a perspective view of a furnace head according to an exemplary embodiment.

[0026] The reference numerals are described as follows:

[0027] 1. Burner body; 11. Burner head; 111. Inner ring cavity; 1111. First airway opening; 112. Outer ring cavity; 1121. Second airway opening; 113. Mounting cavity; 1131. First annular step; 1132. Positioning groove; 12. Gas distributor; 13. Outer fire cover; 14. Inner fire cover; 15. Ignition needle; 2. First flame-stabilizing plate; 21. Arc-shaped bottom wall; 22. Arc-shaped side wall; 23. Annular wall; 231. Raised portion; 232. Second annular step; 233. Ignition hole; 234. Baffle; 3. Second flame-stabilizing plate. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] like Figure 1-7 As shown, a burner according to an embodiment of the utility model comprises a burner body 1 and a first flame stabilizing plate 2 .

[0031] The burner body 1 includes a burner head 11, a gas distribution plate 12, an outer fire cover 13 and an inner fire cover 14. The burner head 11 has an inner ring cavity 111 and an outer ring cavity 112 surrounding the inner ring cavity 111. The inner ring cavity 111 has a first air duct opening 1111. The gas distribution plate 12 is arranged at the upper end of the outer ring cavity 112, and the outer fire cover 13 is arranged on the gas distribution plate 12; the inner fire cover 14 is arranged at the upper end of the inner ring cavity 111.

[0032] The first flame stabilizing plate 2 includes an arcuate bottom wall 21 and an arcuate side wall 22 . The arcuate bottom wall 21 is arranged in the inner annular cavity 111 or the inner fire cover 14 corresponding to the first airway opening 1111 .

[0033] The lower end of the arcuate side wall 22 is fixed to the outer edge of the arcuate bottom wall 21 , and there is a gap between the upper end of the arcuate side wall 22 and the top wall of the inner fire cover 14 for gas to pass through, and the inner fire hole of the inner fire cover 14 is opposite to the arcuate side wall 22 .

[0034] Under the vertical projection, the width of the curved bottom wall 21 is 20-50% of the width of the first airway opening 1111, while the width of the existing curved flame-stabilizing plate is 60-90% of the width of the first airway opening 1111. It can be seen that the width of the curved bottom wall 21 of the utility model is much smaller than the width of the existing flame-stabilizing plate, thereby avoiding large-area blocking of the airway opening and reducing the primary air injection performance.

[0035] The arcuate bottom wall 21, the arcuate side wall 22, the side wall of the inner fire cover 14 with the inner fire hole and the top wall of the inner fire cover 14 of the embodiment of the utility model are jointly arranged to form a cavity, the distance between the upper end of the arcuate side wall 22 and the top wall of the inner fire cover 14 is the air inlet, and the inner fire hole of the inner fire cover 14 is the air outlet.

[0036] In this way, Figure 3 As shown, the air-fuel mixture flows from the first airway opening 1111 to the arc-shaped bottom wall 21, flows to the arc-shaped side wall 22 under the flow of the arc-shaped bottom wall 21, flows into the cavity from the said distance under the joint guidance of the arc-shaped side wall 22 and the top wall of the inner fire cover 14, and then the gas turns downward and finally burns at the fire hole.

[0037] The first flame stabilizing plate 2 of the utility model embodiment extends the gas flow path, reduces the gas pressure at the inner fire hole corresponding to the first gas duct opening 1111, reduces the pressure difference at each inner fire hole, avoids flame howling, and thus achieves uniform flame length without affecting the primary air injection.

[0038] like Figure 2 , 3 As shown in Figures 4, 5 and 6, in a preferred embodiment of the present invention, the angle between the arc-shaped side wall 22 and the arc-shaped bottom wall 21 is 70-150 degrees, preferably 90-120 degrees.

[0039] like Figure 2 , 3 As shown, in a preferred embodiment of the present invention, the arcuate side wall 22 is located between the inner ring side wall and the outer ring side wall of the inner fire cover 14, and there is a spacing between the inner ring side wall and the arcuate side wall 22, and there is also a spacing between the outer ring side wall and the arcuate side wall 22.

[0040] The distance between the upper end of the arc-shaped side wall 22 and the top wall of the inner fire cover 14 is 5-30 mm.

[0041] like Figure 1-7 As shown, in a preferred embodiment of the utility model, the first flame-stabilizing plate 2 also includes an annular wall 23, the outer wall of the annular wall 23 is fixedly connected to the inner edge of the arc-shaped bottom wall 21, and the center of the burner head 11 has an installation cavity 113, and the annular wall 23 is sleeved in the installation cavity 113 or the inner ring cavity 111 to realize the installation and fixation of the first flame-stabilizing plate 2.

[0042] Figure 1 , 2 , 4, and 7 are implementations in which the annular wall 23 is sleeved in the installation cavity 113, the lower end surface of the inner edge side wall of the inner fire cover 14 abuts against the upper end surface of the arc-shaped bottom wall 21, and a plurality of inner fire holes are opened on the inner edge side wall of the inner fire cover 14.

[0043] Of course, the arc bottom wall 21 is not limited to being fixed to the annular wall 23. For example, when the inner fire hole of the inner fire cover 14 is located on the inner edge side wall of the inner fire cover 14, the arc bottom wall 21 can also be fixed to a side wall of the inner ring cavity 111 close to the center of the burner head or the inner edge side wall of the inner fire cover 14.

[0044] Or when the inner fire hole of the inner fire cover 14 is located on the outer edge side wall of the inner fire cover 14, the arc bottom wall 21 is fixedly connected to a side wall of the inner ring cavity 111 away from the center of the burner head or the outer edge side wall of the inner fire cover 14. Those skilled in the art can select the fixing position of the arc bottom wall 21 according to actual needs.

[0045] like Figure 7As shown, in a preferred embodiment of the present invention, a first annular step 1131 is provided at the upper end of the side wall of the installation cavity 113 , and the lower end surface of the annular wall 23 abuts against the first annular step 1131 to achieve installation and fixation of the annular wall 23 .

[0046] like Figure 6 , 7 As shown, in a preferred embodiment of the present utility model, a positioning groove 1132 is formed in the first annular step 1131 , and a protrusion 231 is formed at the lower end of the annular wall 23 .

[0047] When the protrusion 231 is inserted into the positioning groove 1132 , the arc-shaped bottom wall 21 and the arc-shaped side wall 22 are located directly above the first airway opening 1111 , thereby achieving quick positioning.

[0048] like Figure 6 As shown, in a preferred embodiment of the present utility model, a second annular step 232 is formed on the outer wall surface of the annular wall 23 , and the second annular step 232 abuts against the upper end surface of the annular side wall of the inner annular cavity 111 .

[0049] like Figure 7 As shown, in a preferred embodiment of the present utility model, the burner body 1 further includes an ignition needle 15 , and the ignition needle 15 is disposed in the mounting cavity 113 .

[0050] like Figure 5 , 6 As shown, the annular wall 23 is provided with an ignition hole 233 corresponding to the ignition needle 15, which is connected to the inner fire cover 14. The ignition needle 15 ignites the inner ring fire through the ignition hole 233 and ignites the outer ring fire through the fire transfer structure.

[0051] For example, the annular wall 23 is provided with an arc-shaped boss, the ignition hole 233 is located on the arc-shaped boss, and the arc-shaped boss extends into the inner fire cover 14.

[0052] like Figure 5 , 6 As shown, in a preferred embodiment of the utility model, a baffle 234 is horizontally extended from the inner edge of the annular wall 23 corresponding to the ignition needle 15 and the detection needle, and the baffle 234 is located directly above the ignition needle 15 and the detection needle to shield the liquid and prevent the liquid from affecting the performance of the ignition needle 15 and the detection needle.

[0053] like Figure 2 As shown, in a preferred embodiment of the utility model, it also includes an arc-shaped second flame stabilizing plate 3, the outer ring cavity 112 has a second airway opening 1121, the second flame stabilizing plate 3 is fixedly connected to the gas distribution plate 12 or the outer ring cavity 112, and the second flame stabilizing plate 3 is located above the second airway opening 1121.

[0054] The utility model also provides a stove, comprising the burner. The stove of the utility model adopts the burner, so as to achieve the technical effects of uniform flame and sufficient combustion.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] 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 burner body (1), the burner body (1) comprising a burner head (11), a gas distribution plate (12), an outer fire cover (13) and an inner fire cover (14), the burner head (11) having an inner ring cavity (111) and an outer ring cavity (112) surrounding the inner ring cavity (111), the inner ring cavity (111) having a first gas passage opening (1111), the gas distribution plate (12) being arranged at the upper end of the outer ring cavity (112), the outer fire cover (13) being arranged on the gas distribution plate (12), and the inner fire cover (14) being arranged at the upper end of the inner ring cavity (111); A first flame stabilizing plate (2), the first flame stabilizing plate (2) comprising an arcuate bottom wall (21) and an arcuate side wall (22), the arcuate bottom wall (21) corresponding to the first airway opening (1111) being arranged in the inner annular cavity (111) or the inner fire cover (14), the lower end of the arcuate side wall (22) being fixedly connected to the arcuate bottom wall (21), and a distance for gas to pass is provided between the upper end of the arcuate side wall (22) and the top wall of the inner fire cover (14).

2. The burner according to claim 1, characterized in that The included angle between the arc-shaped side wall (22) and the arc-shaped bottom wall (21) is 70-150 degrees.

3. The burner according to claim 1, characterized in that The first flame stabilizing plate (2) further comprises an annular wall (23), the outer wall of the annular wall (23) being fixedly connected to the inner edge of the arc-shaped bottom wall (21); the center of the furnace head (11) comprises an installation cavity (113), and the annular wall (23) is sleeved in the installation cavity (113) or the inner annular cavity (111).

4. The burner according to claim 3, characterized in that The annular wall (23) is sleeved in the installation cavity (113), the lower end surface of the inner edge side wall of the inner fire cover (14) abuts against the upper end surface of the arc-shaped bottom wall (21), and a plurality of inner fire holes are opened on the inner edge side wall of the inner fire cover (14).

5. The burner according to claim 4, characterized in that A first annular step (1131) is provided at the upper end of the side wall of the installation cavity (113), and the lower end surface of the annular wall (23) abuts against the first annular step (1131).

6. The burner according to claim 5, characterized in that The first annular step (1131) is provided with a positioning groove (1132), and the lower end of the annular wall (23) is provided with a protrusion (231). When the protrusion (231) is inserted into the positioning groove (1132), the arc-shaped bottom wall (21) and the arc-shaped side wall (22) are located directly above the first airway opening (1111).

7. The burner according to claim 5, characterized in that The outer wall surface of the annular wall (23) is provided with a second annular step (232), and the second annular step (232) abuts against the upper end surface of the annular side wall of the inner annular cavity (111).

8. The burner according to claim 3, characterized in that The burner body (1) further comprises an ignition needle (15), wherein the ignition needle (15) is arranged in the installation cavity (113), and the annular wall (23) is provided with an ignition hole (233) corresponding to the ignition needle (15) and connected to the inner annular cavity (111).

9. The burner according to any one of claims 1 to 8, characterized in that: It also includes a second arc-shaped flame-stabilizing plate (3), the outer ring cavity (112) has a second airway opening (1121), the second flame-stabilizing plate (3) is fixedly connected to the gas distribution plate (12) or the outer ring cavity (112), and the second flame-stabilizing plate (3) is located above the second airway opening (1121).

10. A cooking appliance, characterized in that: Comprising the burner described in any one of claims 1-9.

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