Combustor fire cover, combustor and stove

Abstract

The utility model provides a burner fire cover, a burner and a stove, and relates to the technical field of kitchen utensils. A gas mixing chamber is defined by the side wall of the burner fire cover, the burner fire cover comprises fire holes formed in the circumferential direction, the fire holes penetrate through the side wall in the thickness direction of the side wall and communicate with the gas mixing chamber, the burner fire cover is provided with a flame stabilizing groove, and the flame stabilizing groove is annular and extends in the circumferential direction of the burner fire cover. The flame stabilizing groove is communicated with the multiple fire holes, and the flame stabilizing groove is formed in the middle of the side wall in the thickness direction of the side wall. The multiple fire holes are communicated through the flame stabilizing grooves, so that local airflow on the inner sides of the multiple fire holes is communicated and interacts with one another, the fire outlet length of each fire hole is balanced, and the flame stabilizing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to the technical field of burner fire covers, burners and stoves of kitchen appliances. Background Art

[0002] In order to ensure efficient and normal combustion of the burner, it is generally necessary to stabilize the main flame. In the prior art, flame stabilization is generally performed by setting secondary flame holes between adjacent primary flame holes. The cross-sectional area of ​​the secondary flame holes is usually smaller than that of the main flame holes, resulting in a flow rate difference between the gas passing through the main flame holes and the secondary flame holes, making the flame lengths of the flames emitted from the main flame holes and the secondary flame holes different. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defect in the prior art that the flame lengths of the main fire hole and the auxiliary fire hole are different, and a burner fire cover and a burner are provided.

[0004] The utility model solves the above technical problems through the following technical solutions:

[0005] A burner fire cover, wherein the side wall of the burner fire cover forms a gas mixing chamber, the burner fire cover comprises fire holes arranged along the circumference, the fire holes penetrate the side wall in the thickness direction of the side wall and communicate with the gas mixing chamber,

[0006] The burner fire cover has a flame stabilizing groove, which is annular and extends in the circumferential direction of the burner fire cover. The flame stabilizing groove connects multiple fire holes and is arranged in the middle of the side wall in the thickness direction of the side wall.

[0007] In this solution, multiple fire holes are connected through flame stabilizing grooves, so that the inner local airflows in the multiple fire holes are connected and interact with each other to balance the length of the fire from each fire hole, thereby playing a flame stabilizing role.

[0008] Preferably, the burner fire cover includes a first part and a second part, the second part is mounted on the first part, the surface of the first part facing the second part forms a first mounting surface, and the surface of the second part facing the first part forms a second mounting surface, one of the first mounting surface and the second mounting surface has a plurality of grooves arranged at intervals, the grooves extend in a direction away from the other of the first mounting surface and the second mounting surface and cooperate with the other of the first mounting surface and the second mounting surface to form a fire hole, and the other of the first mounting surface and the second mounting surface is provided with a flame stabilizing groove.

[0009] In this solution, the detachable first and second parts are provided to facilitate assembly and disassembly. An open groove is provided on one of the first and second parts to form a fire hole, which is convenient for cleaning the fire hole and the flame stabilizing groove and for using the burner fire cover.

[0010] Preferably, the groove is arranged on the second mounting surface, and the flame stabilizing groove is arranged on the first mounting surface.

[0011] In this solution, the second part is mounted on the first part, and the groove is set on the second part to facilitate the removal of the second part to clean the fire hole. Through the above arrangement, the second part is heavier and is less likely to be deformed by combustion when mounted on the first part.

[0012] Preferably, the groove includes a first groove and a second groove, and the first groove is spaced apart from the second groove; the fire hole includes a main fire hole and a secondary fire hole, and the first groove forms the main fire hole, and the second groove forms the secondary fire hole;

[0013] The second groove forms a T-shape, and an open end of the second groove extends toward both sides of the second groove.

[0014] In this solution, the portion of the opening end of the second groove extending toward the two sides of the second groove is conducive to stabilizing the flame of the auxiliary fire hole and the main fire holes on the left and right of the auxiliary fire hole. The extended portion is arranged at the opening end of the second groove, which is convenient for cleaning the second groove and facilitating the use of the burner fire cover.

[0015] Preferably, the width of the first groove is the same as that of the second groove, and the depression depth of the first groove is greater than the depression depth of the second groove.

[0016] In this solution, through the above arrangement, the cross-sectional area of ​​the main fire hole is made close to the cross-sectional area of ​​the auxiliary fire hole, which reduces the flow rate difference of the gas passing through the main fire hole and the auxiliary fire hole, thereby playing a flame stabilizing role.

[0017] Preferably, the first mounting surface extends obliquely upward in the radial direction of the burner fire cover, and the outer circumference of the first mounting surface is higher than the inner circumference of the first mounting surface;

[0018] The second mounting surface matches the first mounting surface.

[0019] In this solution, by tilting the first mounting surface, the second part is positioned and matched with the first part under the action of gravity, which facilitates installation and disassembly between the second part and the first part and the use of the burner fire cover.

[0020] Preferably, the burner fire cover comprises flame stabilizing holes, which are arranged at intervals along the circumference of the second part, and the flame stabilizing holes are located above the groove.

[0021] In this solution, by providing a flame stabilizing hole, a flame stabilizing effect is played on the flame of the fire hole from above, thereby improving the flame stabilizing performance of the burner fire cover.

[0022] Preferably, the flame stabilizing hole extends in a horizontal direction, and the hole diameter inside the flame stabilizing hole is larger than the hole diameter outside the flame stabilizing hole.

[0023] In this solution, when the gas passes through the flame stabilizing hole, as the aperture of the flame stabilizing hole gradually decreases, the gas flow rate gradually increases, which has a flame stabilizing effect on the flame of the fire hole and improves the flame stabilizing performance of the burner fire cover.

[0024] Preferably, the top of the second part has a brim, the brim extends outward along the circumference of the second part, and the lower surface of the brim is provided with an annular seam.

[0025] In this scheme, the diameter of the brim is larger than the diameter of the second part. The annular seam presses down the flame of the flame stabilizing hole below it, forming a full circle of annular seam flame. The upper flame stabilizing groove is used in combination with the first flame stabilizing hole to form a double flame stabilizing structure, which stabilizes the flame in the upper half of the fire hole and improves the flame stabilizing effect.

[0026] A burner comprises the burner fire cover mentioned above.

[0027] In this solution, multiple fire holes are connected through flame stabilizing grooves, so that the inner local airflows in the multiple fire holes are connected and interact with each other to balance the length of the fire from each fire hole, thereby playing a flame stabilizing role.

[0028] A stove comprises the burner mentioned above.

[0029] The positive improvement effect of the utility model is that multiple fire holes are connected through the flame stabilizing groove, so that the inner local airflows in the multiple fire holes are connected and interact with each other, balancing the length of the fire from each fire hole and playing a flame stabilizing role. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the three-dimensional structure of the burner fire cover of Example 1 of the utility model.

[0031] Figure 2 This is a cross-sectional schematic diagram of the burner fire cover of Example 1 of the utility model.

[0032] Figure 3 It is a side view of the burner fire cover of Example 1 of the utility model.

[0033] Figure 4This is a top view of the burner fire cover of Example 1 of the utility model.

[0034] Figure 5 This is a schematic diagram of the three-dimensional structure of the first part of the burner fire cover of Example 1 of the utility model.

[0035] Figure 6 This is a top view of the first part of the burner fire cover of Example 1 of the utility model.

[0036] Figure 7 This is a schematic diagram of the three-dimensional structure of the second part of the burner fire cover of Example 1 of the utility model.

[0037] Figure 8 It is a schematic diagram of the three-dimensional structure of the burner in Example 2 of the utility model.

[0038] Description of reference numerals:

[0039] Burner fire cover 100

[0040] Part 1

[0041] The first mounting surface 11

[0042] Part 2

[0043] Second mounting surface 21

[0044] Brim 22

[0045] Annular seam 23

[0046] Flame stabilizing hole 24

[0047] Flame stabilization tank 3

[0048] Groove 4

[0049] First groove 41

[0050] Second groove 42

[0051] Mixing chamber 5

[0052] Burner 200

[0053] Outer ring fire cover 210

[0054] Air Inlet 211

[0055] Ejector tube 220 DETAILED DESCRIPTION

[0056] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0057] Example 1

[0058] This embodiment provides a burner fire cover 100, such as Figure 1-Figure 7 As shown, the side wall of the burner fire cover 100 encloses the gas mixing chamber 5, and the burner fire cover 100 includes fire holes arranged along the circumferential direction, and the fire holes penetrate the side wall in the thickness direction of the side wall and are connected to the gas mixing chamber 5. The burner fire cover 100 has a flame stabilizing groove 3, and the flame stabilizing groove 3 is annular and extends in the circumferential direction of the burner fire cover 100. The flame stabilizing groove 3 is connected to multiple fire holes. In the thickness direction of the side wall, the flame stabilizing groove 3 is arranged in the middle of the side wall. Among them, the flame stabilizing groove 3 can be set to one or more according to the setting position of the fire hole. In other alternative embodiments, the flame stabilizing groove 3 can also be set to an arc shape, and the burner fire cover 100 is connected to multiple fire holes by setting multiple flame stabilizing grooves 3. Among them, the burner fire cover 100 in this embodiment is an inner ring fire cover. In other alternative embodiments, this structure can also be applied to the outer ring fire cover.

[0059] The flame stabilizing groove 3 connects a plurality of fire holes, so that the local airflow inside the plurality of fire holes can flow through and interact with each other, balancing the length of the fire from each fire hole and playing a flame stabilizing role.

[0060] As a preferred implementation, Figure 1 and Figure 2 As shown, the burner fire cover 100 includes a first part 1 and a second part 2, the second part 2 is mounted on the first part 1, the surface of the first part 1 facing the second part 2 forms a first mounting surface 11, and the surface of the second part 2 facing the first part 1 forms a second mounting surface 21, one of the first mounting surface 11 and the second mounting surface 21 has a plurality of grooves 4 arranged at intervals, the grooves 4 extend in a direction away from the other of the first mounting surface 11 and the second mounting surface 21 and cooperate with the other of the first mounting surface 11 and the second mounting surface 21 to form a fire hole, and the other of the first mounting surface 11 and the second mounting surface 21 is provided with a flame stabilizing groove 3.

[0061] The detachable first part 1 and the second part 2 are provided to facilitate assembly and disassembly. An open groove 4 is provided on one of the first part 1 and the second part 2 to form a fire hole, which is convenient for cleaning the fire hole and the flame stabilizing groove 3 and facilitating the use of the burner fire cover 100.

[0062] As a preferred implementation, Figure 5-Figure 7 As shown, the groove 4 is arranged on the second mounting surface 21 , and the flame stabilizing groove 3 is arranged on the first mounting surface 11 .

[0063] The second part 2 is mounted on the first part 1, and the groove 4 is set on the second part 2, so that the second part 2 can be easily removed to clean the fire hole. Through the above arrangement, the second part 2 is heavier and is less likely to be deformed by combustion when mounted on the first part 1.

[0064] In other alternative embodiments, the groove 4 is provided on the first mounting surface 11 , and the flame stabilizing groove 3 is provided on the second mounting surface 21 .

[0065] As a preferred implementation, Figure 7 As shown, the groove 4 includes a first groove 41 and a second groove 42, and the first groove 41 and the second groove 42 are arranged at intervals; the fire hole includes a main fire hole and a secondary fire hole, the first groove 41 forms the main fire hole, and the second groove 42 forms the secondary fire hole; the second groove 42 forms a T-shape, and the opening end of the second groove 42 extends toward both sides of the second groove 42.

[0066] The portion of the second groove 42 extending toward both sides of the second groove 42 is conducive to stabilizing the flame of the secondary fire hole and the main fire holes on the left and right of the secondary fire hole. The extended portion is arranged at the opening end of the second groove 42, which is convenient for cleaning the second groove 42 and facilitating the use of the burner fire cover 100.

[0067] In the present embodiment, there is no particular limitation on the size of the portion of the second groove 42 extending toward both sides.

[0068] As a preferred implementation, the widths of the first groove 41 and the second groove 42 are the same, and the depression depth of the first groove 41 is greater than the depression depth of the second groove 42 .

[0069] Through the above arrangement, the cross-sectional area of ​​the main fire hole is close to the cross-sectional area of ​​the auxiliary fire hole, which reduces the flow rate difference of the gas passing through the main fire hole and the auxiliary fire hole, thereby playing a flame stabilizing role.

[0070] As a preferred implementation, Figure 2-Figure 7 As shown, the first mounting surface 11 extends obliquely upward in the radial direction of the burner fire cover 100 , and the outer circumference of the first mounting surface 11 is higher than the inner circumference of the first mounting surface 11 ; the second mounting surface 21 matches the first mounting surface 11 .

[0071] By tilting the first mounting surface 11 , the second part 2 is positioned and matched with the first part 1 under the action of gravity, which facilitates installation and disassembly between the second part 2 and the first part 1 and the use of the burner fire cover 100 .

[0072] In other alternative embodiments, mutually matching positioning blocks and positioning grooves may be provided on the first mounting surface 11 and the second mounting surface 21, respectively. In addition, there is no specific limitation on the connection method between the second part 2 and the first part 1. The second part 2 may also be connected and fixed to the first part 1 by means of a snap connection, a threaded connection, etc.

[0073] As a preferred implementation, Figure 2 and Figure 7As shown, the burner fire cover 100 includes flame stabilizing holes 24 , which are arranged at intervals along the circumference of the second portion 2 , and the flame stabilizing holes 24 are located above the groove 4 .

[0074] By providing the flame stabilizing holes 24 , a flame stabilizing effect is exerted on the flame of the fire hole from above, thereby improving the flame stabilizing performance of the burner fire cover 100 .

[0075] As a preferred implementation, the flame stabilizing hole 24 extends in the horizontal direction, and the aperture inside the flame stabilizing hole 24 is larger than the aperture outside the flame stabilizing hole 24 .

[0076] When the gas passes through the flame stabilizing hole 24, Figure 2 As shown, as the aperture of the flame stabilizing hole 24 gradually decreases, the gas flow rate gradually increases, which has a flame stabilizing effect on the flame of the fire hole and improves the flame stabilizing performance of the burner fire cover 100.

[0077] As a preferred implementation, Figure 1-Figure 4 As shown, the top of the second part 2 has a brim 22, which extends outward along the circumference of the second part 2, and the lower surface of the brim 22 is provided with an annular seam 23. Specifically, the inner side of the annular seam 23 is provided along the side wall of the second part 2, and the annular seam 23 is recessed upward along the lower surface of the brim 22.

[0078] The diameter of the brim 22 is larger than that of the second part 2. The annular seam 23 presses down the flame of the flame stabilizing hole 24 below it, forming a full circle of annular seam 23 flame. The upper flame stabilizing groove 3 is used in combination with the first flame stabilizing hole 24 to form a double flame stabilizing structure, which stabilizes the flame in the upper half of the fire hole and improves the flame stabilizing effect.

[0079] Example 2

[0080] This embodiment provides a burner 200, such as Figure 8 As shown, the burner 200 includes the burner fire cover 100 in Example 1. The burner fire cover 100 is an inner ring fire cover. The burner 200 also includes an outer ring fire cover 210 and an ejector pipe 220 respectively connecting the inner ring fire cover and the outer ring fire cover 210, wherein the outer ring fire cover 210 also includes an air inlet 211, and the air inlet 211 is used to supplement air for the combustion of the burner.

[0081] The flame stabilizing groove 3 connects a plurality of fire holes, so that the local airflow inside the plurality of fire holes can flow through and interact with each other, balancing the length of the fire from each fire hole and playing a flame stabilizing role.

[0082] Example 3

[0083] This embodiment provides a stove, which includes the burner 200 in the second embodiment.

[0084] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A burner fire cover, wherein the side wall of the burner fire cover forms a gas mixing chamber, the burner fire cover comprises fire holes arranged along the circumference, the fire holes penetrate the side wall in the thickness direction of the side wall and communicate with the gas mixing chamber, characterized in that: The burner fire cover has a flame stabilizing groove, which is annular and extends in the circumferential direction of the burner fire cover. The flame stabilizing groove connects multiple fire holes and is arranged in the middle of the side wall in the thickness direction of the side wall.

2. The burner cap according to claim 1, characterized in that: The burner fire cover includes a first part and a second part, the second part is mounted on the first part, the surface of the first part facing the second part forms a first mounting surface, and the surface of the second part facing the first part forms a second mounting surface, one of the first mounting surface and the second mounting surface has a plurality of grooves arranged at intervals, the grooves extend in a direction away from the other of the first mounting surface and the second mounting surface and cooperate with the other of the first mounting surface and the second mounting surface to form a fire hole, and the other of the first mounting surface and the second mounting surface is provided with a flame stabilizing groove.

3. The burner cap according to claim 2, characterized in that: The groove is arranged on the second mounting surface, and the flame stabilizing groove is arranged on the first mounting surface.

4. The burner cap according to claim 2, characterized in that: The groove includes a first groove and a second groove, and the first groove is spaced apart from the second groove; the fire hole includes a main fire hole and a secondary fire hole, and the first groove forms the main fire hole, and the second groove forms the secondary fire hole; The second groove forms a T-shape, and an open end of the second groove extends toward both sides of the second groove.

5. The burner cap according to claim 4, characterized in that: The first groove has the same width as the second groove, and the first groove has a greater depth than the second groove.

6. The burner cap according to claim 2, characterized in that: The first mounting surface extends obliquely upward in the radial direction of the burner fire cover, and the outer circumference of the first mounting surface is higher than the inner circumference of the first mounting surface; The second mounting surface matches the first mounting surface.

7. The burner cap according to claim 3, characterized in that: The burner fire cover comprises flame stabilizing holes, which are arranged at intervals along the circumference of the second part and are located above the groove.

8. The burner cap according to claim 6, characterized in that: The top of the second part is provided with a brim, the brim extends outward along the circumference of the second part, and a ring seam is arranged on the lower surface of the brim.

9. A burner, characterized in that: The burner comprises a burner fire cover as claimed in any one of claims 1-8.

10. A cooking appliance, characterized in that: The cooker comprises a burner as claimed in claim 9.

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