Two-ring fire burner

Abstract

The utility model relates to the technical field of combustors, and discloses a two-ring fire combustor which is provided with a fire distributor, the fire distributor comprises an outer fire ring groove assembly, the outer fire ring groove assembly comprises a first outer ring and a first inner ring, an outer fire gas groove is formed between the first outer ring and the first inner ring, a first separator is erected between the first outer ring and the first inner ring, and a second separator is erected between the first outer ring and the first inner ring; a first upper gas mixing cavity and a first lower gas mixing cavity which are communicated with each other are formed in the outer fire gas groove; the inner fire ring groove assembly is located in the center of the first inner ring and comprises a second outer ring and a second inner ring, an inner fire gas groove is formed between the second outer ring and the second inner ring, and a second separator is erected between the second outer ring and the second inner ring, so that a second upper gas mixing cavity and a second lower gas mixing cavity which are communicated with each other are formed in the inner fire gas groove; according to the two-ring fire burner, premixing can be carried out twice in the corresponding fire ring grooves so as to prevent the phenomenon of yellow flame during combustion, and compared with a traditional fire distributor, the premixing effect is better under the same volume.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a double-ring fire burner. Background Art

[0002] In the current prior art, there is only one gas groove in the ignition divider on the combustion stove, so that the gas and air are premixed once in the gas groove in the ignition divider and then directly output for combustion. For example, Chinese patent document CN206709069U discloses a stove burner with an outer ring mixed gas groove closed, including a burner head, a ignition divider seat, an inner fire cover and an outer fire cover, the burner head includes an inner ejector tube, an outer ejector tube, an inner fire cover seat and an outer ring mixed gas groove, the ignition divider seat includes an outer ring gas groove, an axial air guide cavity and a circular seat plate, the upper end of the axial air guide cavity is connected to the outer ring gas groove, and the upper opening of the axial air guide cavity is connected to the outer ring gas groove; the axial air guide cavity is connected to the circular seat plate, and the air inlet and the through hole are connected; the ignition divider seat is formed in one step.

[0003] According to the prior art disclosed above, the existing ignition divider premixes the gas and air once in the ejector tube, and then enters the outer ring gas groove for secondary premixing before directly outputting for combustion. However, due to the fast gas input and output speeds, yellow flames are easily generated during flame combustion due to insufficient mixing. If the gas is to be fully mixed, a longer ejector tube or a larger ignition divider is usually used so that the gas can be premixed in a sufficient space, but this will result in a larger occupied space. Utility Model Content

[0004] In order to overcome the defects in the prior art, the utility model provides a double-ring fire burner to solve the problems in the prior art.

[0005] The technical solution adopted by the utility model to solve the technical problem is: a double-ring fire burner, which has a flame distributor, and the flame distributor includes:

[0006] An outer fire ring groove assembly, the outer fire ring groove assembly comprising a first outer ring and a first inner ring, an outer fire gas groove is formed between the first outer ring and the first inner ring, a first separator is arranged between the first outer ring and the first inner ring, so that the outer fire gas groove forms a first upper mixing gas chamber and a first lower mixing gas chamber that are interconnected;

[0007] An inner fire ring groove assembly, which is located at the center of the first inner ring, the inner fire ring groove assembly includes a second outer ring and a second inner ring, an inner fire gas groove is formed between the second outer ring and the second inner ring, and a second separator is arranged between the second outer ring and the second inner ring so that the inner fire gas groove forms a second upper mixing gas chamber and a second lower mixing gas chamber that are interconnected;

[0008] The outer wall of the first inner ring is connected to the outer wall of the second outer ring via a connecting block.

[0009] In the above-mentioned double-ring fire burner, a first fire-blocking ring is also mounted on the first inner ring, and a second fire-blocking ring is also mounted on the second inner ring. An outer flame output gap is formed between the first fire-blocking ring and the first separator, and an inner flame output gap is formed between the second fire-blocking ring and the second separator.

[0010] In the above-mentioned double-ring fire burner, the first separator and the second separator both include a separator bottom plate with an opening in the middle, the separator bottom plate is suspended between the first upper air mixing chamber and the first lower air mixing chamber or between the second upper air mixing chamber and the second lower air mixing chamber, the inner edge of the separator bottom plate is provided with a lower convex ring, the outer edge of the separator bottom plate is provided with an upper convex ring, and a plurality of connecting holes are evenly opened along the circumferential direction of the separator bottom plate.

[0011] In the above-mentioned double-ring fire burner, the partition bottom plate is vertically connected to the lower convex ring and the upper convex ring respectively.

[0012] In the above-mentioned double-ring fire burner, the upper end of the upper convex ring is provided with a U-shaped buckle ring bent outward, the U-shaped buckle ring is buckled on the upper end of the first outer ring or the second outer ring, and the lower convex ring is inserted into the inner wall of the first inner ring or the second inner ring.

[0013] In the above-mentioned double-ring fire burner, the lower end of the first fire-blocking ring is mounted on the first inner ring, and the upper end is in a non-contact state with the upper raised ring on the first separator to form the outer flame output gap; the lower end of the second fire-blocking ring is mounted on the second inner ring, and the upper end is in a non-contact state with the upper raised ring on the second separator to form the inner flame output gap.

[0014] In the above-mentioned double-ring fire burner, the inner wall of the upper convex ring is provided with a raised fire avoidance platform, and the fire avoidance platform is in contact with the first fire-blocking ring or the second fire-blocking ring.

[0015] In the above-mentioned double-ring fire burner, a center hole is provided at the center of the second inner ring, and an ignition needle and a sensing needle are installed in the center hole.

[0016] In the above-mentioned double-ring fire burner, an air groove is formed between the first inner ring and the second outer ring.

[0017] The beneficial effect of the present invention is that the outer fire ring groove assembly and the inner fire ring groove assembly form a two-ring flame on the fire divider, and the outer fire ring groove assembly has a first upper mixing chamber and a first lower mixing chamber, and the inner fire ring groove assembly has a second upper mixing chamber and a second lower mixing chamber, so that the outer fire ring groove assembly and the inner fire ring groove assembly can be premixed twice in the corresponding fire ring grooves, and the gas and air can be better mixed without using a longer ejector tube to prevent the occurrence of yellow flames during combustion. Moreover, compared with traditional fire dividers, the premixing effect is better under the same volume, and the occupied space is reduced. Moreover, the outer fire ring groove assembly and the inner fire ring groove assembly are connected by a connecting block, which can effectively reduce the weight of the fire divider. At the same time, the outer diameter air can be better supplemented between the outer fire ring groove assembly and the inner fire ring groove assembly to further improve the combustion efficiency of the flame. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the fire distributor of the utility model.

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the fire distributor.

[0020] Figure 3 It is a schematic diagram of the explosion structure of the ignition device.

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the first separator.

[0022] In the figure: outer fire ring groove assembly 1, inner fire ring groove assembly 2, connecting block 3, center hole 4, outer fire gas groove air inlet 5, inner fire gas groove air inlet 6, first outer ring 7, first inner ring 8, first separator 9, first fire stop ring 10, outer flame output gap 11, second outer ring 12, second inner ring 13, second separator 14, second fire stop ring 15, partition bottom plate 16, lower convex ring 17, connecting hole 18, upper convex ring 19, U-shaped buckle 20, fire avoidance platform 21. DETAILED DESCRIPTION

[0023] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0024] Combination Figures 1 to 4A double-ring fire burner shown in the figure has a fire divider, which includes: an outer fire ring groove assembly 1 and an inner fire ring groove assembly 2, the outer fire ring groove assembly 1 includes a first outer ring 7 and a first inner ring 8, an outer fire gas groove is formed between the first outer ring 7 and the first inner ring 8, a first separator 9 is arranged between the first outer ring 7 and the first inner ring 8, so that the outer fire gas groove forms a first upper mixing gas chamber and a first lower mixing gas chamber that are interconnected; the inner fire ring groove assembly 2 is located at the center of the first inner ring 8, the inner fire ring groove assembly 2 includes a second outer ring 12 and a second inner ring 13, an inner fire gas groove is formed between the second outer ring 12 and the second inner ring 13, a second separator 14 is arranged between the second outer ring 12 and the second inner ring 13, so that the inner fire gas groove forms a second upper mixing gas chamber and a second lower mixing gas chamber that are interconnected; the outer wall of the first inner ring 8 is connected to the outer wall of the second outer ring 12 by a connecting block 3; The outer fire ring groove assembly 1 and the inner fire ring groove assembly 2 of the embodiment form a two-ring flame on the fire divider, and the outer fire ring groove assembly 1 has a first upper mixing chamber and a first lower mixing chamber, and the inner fire ring groove assembly 2 has a second upper mixing chamber and a second lower mixing chamber, so that the outer fire ring groove assembly 1 and the inner fire ring groove assembly 2 can be premixed twice in the corresponding fire ring grooves, and the gas and air can be better mixed without using a longer ejector tube to prevent the occurrence of yellow flames during combustion. Moreover, compared with traditional fire dividers, the premixing effect is better under the same volume, and the occupied space is reduced. Moreover, the outer fire ring groove assembly 1 and the inner fire ring groove assembly 2 are connected by a connecting block 3, which can effectively reduce the weight of the fire divider. At the same time, the outer diameter air can be better supplemented between the outer fire ring groove assembly 1 and the inner fire ring groove assembly 2 to further improve the combustion efficiency of the flame.

[0025] The outer fire ring groove assembly 1 of the present embodiment is provided with an outer fire gas groove air inlet 5 at the lower end, and the outer fire gas groove air inlet 5 is used to connect to the first ejection pipe seat, and the outer fire gas groove air inlet 5 is communicated with the outer fire gas groove. The inner fire ring groove assembly 2 is provided with an inner fire gas groove air inlet 6 at the lower end, and the inner fire gas groove air inlet 6 is communicated with the inner fire gas groove, and the inner fire gas groove air inlet 6 is used to connect to the second ejection pipe seat.

[0026] In this embodiment, a first fire-blocking ring 10 is also mounted on the first inner ring 8, and a second fire-blocking ring 15 is also mounted on the second inner ring 13. An outer flame output gap 11 is formed between the first fire-blocking ring 10 and the first separator 9, and an inner flame output gap is formed between the second fire-blocking ring 15 and the second separator 14. The first fire-blocking ring 10 blocks the top of the first upper mixing chamber so that the mixed gas in the first upper mixing chamber is output through the outer flame output gap 11 for ignition and combustion. The second fire-blocking ring 15 blocks the top of the second upper mixing chamber so that the mixed gas in the second upper mixing chamber is output through the inner flame output gap for ignition and combustion, thereby forming a two-ring fire.

[0027] The first separator 9 and the second separator 14 of the present embodiment both include a separator bottom plate 16 with an opening in the middle, the separator bottom plate 16 is suspended between the first upper air mixing chamber and the first lower air mixing chamber or between the second upper air mixing chamber and the second lower air mixing chamber, the inner edge of the separator bottom plate 16 is provided with a lower convex ring 17, the outer edge of the separator bottom plate 16 is provided with an upper convex ring 19, and a plurality of connecting holes 18 are evenly provided along the circumferential direction of the separator bottom plate 16; by providing a plurality of connecting holes 18 on the separator bottom plate 16, the spaces on the upper and lower sides of the separator bottom plate 16 can be connected to each other, so that the gases can be mixed in two independent spaces, which has a better effect.

[0028] It is worth noting that the partition plate 16 of this embodiment is vertically connected to the lower convex ring 17 and the upper convex ring 19 respectively; so that the partition plate 16 can be parallel to the fire divider after installation, so that the space on the upper and lower sides of the partition plate 16 can be better fully utilized.

[0029] The upper end of the upper convex ring 19 of this embodiment is provided with a U-shaped buckle ring 20 bent outward, and the U-shaped buckle ring 20 is buckled to the upper end of the first outer ring 7 or the second outer ring 12, and the lower convex ring 17 is inserted into the inner wall of the first inner ring 8 or the second inner ring 13; so that the partition bottom plate 16 is suspended in the outer fire gas groove or the inner fire gas groove, so that the partition bottom plate 16 further utilizes the space on the upper and lower sides.

[0030] It is worth mentioning that the lower end of the first fire stop ring 10 of the present embodiment is mounted on the first inner ring 8, and the upper end is in a non-contact state with the upper convex ring 19 on the first separator 9 to form an outer flame output gap 11, and the lower end of the second fire stop ring 15 is mounted on the second inner ring 13, and the upper end is in a non-contact state with the upper convex ring on the second separator 14 to form an inner flame output gap; the overall structure is convenient for disassembly and assembly, and you only need to pick up the first fire stop ring 10 or the second fire stop ring 15 to further take out the first separator 9 or the second separator 14, which is convenient for cleaning.

[0031] It is also worth mentioning that the inner wall of the upper raised ring 19 of the present embodiment is provided with a raised fire avoidance platform 21, and the fire avoidance platform 21 is in contact with the first fire-blocking ring 10 or the second fire-blocking ring 15; when the flame is burning, the fire avoidance platform 21 closes part of the gap, causing the fire curtain to be disconnected. Since the fire curtain is in contact with the bottom of the pot during actual cooking, the position where the fire curtain is disconnected can allow outside air to enter the inside of the fire curtain to facilitate combustion, and a wind groove is formed between the first inner ring 8 and the second outer ring 12 to further improve the supplement of outside air.

[0032] In this embodiment, a center hole 4 is provided at the center of the second inner ring 13 , and an ignition needle and a sensing needle are installed in the center hole 4 .

[0033] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A double ring fire burner having a fire distributor, characterized in that: The fire distributor comprises: An outer fire ring groove assembly (1), the outer fire ring groove assembly (1) comprising a first outer ring (7) and a first inner ring (8), an outer fire gas groove being formed between the first outer ring (7) and the first inner ring (8), a first separator (9) being arranged between the first outer ring (7) and the first inner ring (8), so that the outer fire gas groove forms a first upper mixing gas chamber and a first lower mixing gas chamber which are interconnected; an inner fire ring groove assembly (2) located at the center of the first inner ring (8), the inner fire ring groove assembly (2) comprising a second outer ring (12) and a second inner ring (13), an inner fire gas groove being formed between the second outer ring (12) and the second inner ring (13), a second separator (14) being arranged between the second outer ring (12) and the second inner ring (13) so that the inner fire gas groove forms a second upper mixing gas chamber and a second lower mixing gas chamber which are interconnected; The outer wall of the first inner ring (8) and the outer wall of the second outer ring (12) are connected via a connecting block (3).

2. A double ring fire burner according to claim 1, characterized in that: A first fire-blocking ring (10) is also mounted on the first inner ring (8), and a second fire-blocking ring (15) is also mounted on the second inner ring (13); an outer flame output gap (11) is formed between the first fire-blocking ring (10) and the first separator (9), and an inner flame output gap is formed between the second fire-blocking ring (15) and the second separator (14).

3. A double ring fire burner according to claim 2, characterized in that: The first separator (9) and the second separator (14) both comprise a separator bottom sheet (16) with an opening in the middle, the separator bottom sheet (16) being suspended between the first upper air mixing chamber and the first lower air mixing chamber or between the second upper air mixing chamber and the second lower air mixing chamber, the inner edge of the separator bottom sheet (16) being provided with a lower convex ring (17), the outer edge of the separator bottom sheet (16) being provided with an upper convex ring (19), and a plurality of communication holes (18) being uniformly provided along the circumferential direction of the separator bottom sheet (16).

4. A double ring fire burner according to claim 3, characterized in that: The partition bottom sheet (16) is respectively vertically connected to the lower convex ring (17) and the upper convex ring (19).

5. A double ring fire burner according to claim 3, characterized in that: The upper end of the upper convex ring (19) is provided with a U-shaped buckle ring (20) bent outwards, the U-shaped buckle ring (20) is buckled onto the upper end of the first outer ring (7) or the second outer ring (12), and the lower convex ring (17) is plugged onto the inner wall of the first inner ring (8) or the second inner ring (13).

6. A double ring fire burner according to claim 5, characterized in that: The lower end of the first fire-blocking ring (10) is mounted on the first inner ring (8), and the upper end is in a non-contact state with the upper convex ring (19) on the first separator (9), so as to form the outer flame output gap (11); the lower end of the second fire-blocking ring (15) is mounted on the second inner ring (13), and the upper end is in a non-contact state with the upper convex ring on the second separator (14), so as to form the inner flame output gap.

7. A double ring fire burner according to claim 6, characterized in that: The inner wall of the upper convex ring (19) is provided with a raised fire avoidance platform (21), and the fire avoidance platform (21) is in contact with the first fire-blocking ring (10) or the second fire-blocking ring (15).

8. A double ring fire burner according to claim 1, characterized in that: A central hole (4) is provided at the center of the second inner ring (13), and an ignition needle and a sensing needle are installed in the central hole (4).

9. A double ring fire burner according to claim 1, characterized in that: An air groove is formed between the first inner ring (8) and the second outer ring (12).

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