Combustor

Abstract

The utility model relates to a combustor, which comprises a furnace end, an outer ring, an inner ring, an outer ring cavity and an inner ring cavity, the furnace end is provided with an outer premixing pipe and an inner premixing pipe, the outer ring cavity is arranged on the outer ring and communicated with the outer premixing pipe, and the inner ring cavity is arranged on the inner ring and communicated with the inner premixing pipe. The outer premixing pipe is communicated from the right side of the outer ring cavity, and an outer blocking part corresponding to the right side of an outlet of the outer premixing pipe is arranged on the outer ring cavity; the inner premixing pipe is communicated from the left side of the inner ring cavity, and an inner blocking part corresponding to the left side of an outlet of the inner premixing pipe is arranged on the inner ring cavity. According to the combustor, fuel is blocked by the outer blocking part when being injected into the outer ring cavity along the outer premixing pipe, so that the fuel is accelerated to the direction outside the outer blocking part, that is, the fuel is injected along the outer ring cavity in the anticlockwise direction to fill the outer ring cavity, and therefore the fuel filling efficiency can be improved while the size of the combustor is reduced.

Description

Technical Field

[0001] This application relates to the field of stove technology, and more particularly to a burner. Background Technology

[0002] Currently, stoves come in two types: single-ring and double-ring. Single-ring stoves have a simple structure and small size, but their combustion efficiency is not as good as that of double-ring stoves. Double-ring stoves, on the other hand, have a complex structure and occupy more space, reducing the efficiency of fuel injection and filling of the combustion chamber. Utility Model Content

[0003] To solve the above problems, this technical solution provides a burner.

[0004] To achieve the above objectives, the technical solution is as follows:

[0005] A burner, including

[0006] A burner head is provided with an outer premixing tube and an inner premixing tube, an outer ring, an inner ring, an outer ring cavity disposed on the outer ring and connected to the outer premixing tube, and an inner ring cavity disposed on the inner ring and connected to the inner premixing tube. The outer ring cavity includes a first groove bottom, a second groove bottom, and a third groove bottom that gradually rise in a counterclockwise direction; the inner ring cavity includes a fourth groove bottom, a fifth groove bottom, and a sixth groove bottom that gradually rise in a clockwise direction; the outer premixing tube penetrates into the inner ring cavity so that its outer wall forms the sixth groove bottom.

[0007] The outer premixing tube is connected to the right side of the outer annular cavity, and the outer annular cavity is provided with an outer blocking part corresponding to the right side of the outlet of the outer premixing tube; the inner cavity of the outer premixing tube extends along the outlet direction to be embedded in the outer annular cavity to form the outer blocking part;

[0008] The inner premixing tube is connected to the left side of the inner ring cavity, and the inner ring cavity is provided with an inner blocking part corresponding to the left side of the outlet of the inner premixing tube; the inner cavity of the inner premixing tube extends along the outlet direction to be embedded in the inner ring cavity to form the inner blocking part.

[0009] In a burner as described above, the width of the outer blocking portion is one-third of the radius of the outer premixing tube.

[0010] In a burner as described above, the width of the inner barrier is one-third of the radius of the inner premixing tube.

[0011] As described above, in a burner, the burner head is provided with an outer flame cover that is disposed on the outer annular cavity, and the burner head is provided with a guide mechanism for guiding the outer flame cover to engage with the outer ring.

[0012] As described above, in a burner, the guiding mechanism includes a positioning post disposed on the burner head, a positioning screw that is inserted into the positioning post, and a positioning nut disposed on the positioning screw.

[0013] As described above, in a burner, the outer flame cap is provided with a positioning hole, and the positioning post supports the positioning nut so that the lower end of the positioning post is inserted into the positioning post and the upper end is higher than the outer flame cap.

[0014] As described above, in a burner, a groove is provided on the side wall of the outer annular cavity. When the positioning nut is inserted into the positioning post along with the positioning screw, the groove allows the positioning nut to be embedded and restricts its rotation.

[0015] In the burner described above, the positioning post is integrally formed with the inner wall of the outer annular cavity.

[0016] In a burner as described above, the outer premixing tube and the inner premixing tube connect the outer ring and the inner ring, such that the outer ring and the inner ring are spaced apart.

[0017] As described above, in a burner, the burner head is provided with a clearance notch for making way for the ignition needle, the clearance notch being located in the gap between the outer ring and the inner ring.

[0018] The beneficial effects of this application are:

[0019] This invention provides a burner in which fuel, when injected into the outer annular cavity along the outer premixing pipe, is blocked by an outer obstruction part. This causes the fuel to accelerate outward from the outer obstruction part, i.e., it is injected counterclockwise into the outer annular cavity. Since the outer obstruction part is located at the outlet of the outer premixing pipe, the fuel is only blocked after leaving the outer premixing pipe, thus not affecting the fuel injection effect. Furthermore, the outer obstruction part is embedded in the outer annular cavity, ensuring sufficient space within the cavity while avoiding an increase in the burner's volume. The same principle applies to the inner obstruction part. Therefore, the burner's volume can be reduced while increasing fuel filling efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0021] Figure 1 This is an exploded view of the structure of this application;

[0022] Figure 2 This is a half-sectional view of this application. Detailed Implementation

[0023] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] A burner, including

[0025] The burner head 2 is provided with an outer premixing tube 21 and an inner premixing tube 22, an outer ring 23, and an inner ring 24. An outer ring cavity 25 is provided on the outer ring 23 and communicates with the outer premixing tube 21, and an inner ring cavity 26 is provided on the inner ring 24 and communicates with the inner premixing tube 22. The outer ring cavity 25 includes a first groove bottom 251, a second groove bottom 252, and a third groove bottom 253 that gradually rise in a counterclockwise direction. The inner ring cavity 26 includes a fourth groove bottom 261, a fifth groove bottom 262, and a sixth groove bottom 263 that gradually rise in a clockwise direction. The outer premixing tube 21 penetrates into the inner ring cavity 26 so that its outer wall forms the sixth groove bottom 263.

[0026] The outer premixing tube 21 is connected to the right side of the outer annular cavity 25, and the outer annular cavity 25 is provided with an outer blocking part 211 corresponding to the right side of the outlet of the outer premixing tube 21; the inner cavity of the outer premixing tube 21 extends along the outlet direction to be embedded in the outer annular cavity 25 to form the outer blocking part 211.

[0027] The inner premixing tube 22 is connected to the left side of the inner ring cavity 26, and the inner ring cavity 26 is provided with an inner blocking part 221 corresponding to the left side of the outlet of the inner premixing tube 22; the inner cavity of the inner premixing tube 22 extends along the outlet direction to be embedded in the inner ring cavity 26 to form the inner blocking part 221.

[0028] This invention provides a burner in which fuel, when injected into the outer annular cavity along the outer premixing pipe, is blocked by an outer obstruction part. This causes the fuel to accelerate outward from the outer obstruction part, i.e., it is injected counterclockwise into the outer annular cavity. Since the outer obstruction part is located at the outlet of the outer premixing pipe, the fuel is only blocked after leaving the outer premixing pipe, thus not affecting the fuel injection effect. Furthermore, the outer obstruction part is embedded in the outer annular cavity, ensuring sufficient space within the cavity while avoiding an increase in the burner's volume. The same principle applies to the inner obstruction part. Therefore, the burner's volume can be reduced while increasing fuel filling efficiency.

[0029] Furthermore, as a preferred embodiment of this solution and not a limitation, the width of the outer blocking portion 211 is one-third of the radius of the outer premixing tube 21.

[0030] Furthermore, as a preferred embodiment of this solution and not a limitation, the width of the inner blocking portion 221 is one-third of the radius of the inner premixing tube 22.

[0031] Furthermore, as a preferred embodiment of this solution and not a limitation, the burner head 2 is provided with an outer flame cover 4 that covers the outer ring cavity 25, and the burner head 2 is provided with a guide mechanism 6 for guiding the outer flame cover 4 to engage with the outer ring 23. Currently, the engagement between the outer flame cover and the burner head is relatively shallow, and during installation or use, it is easy to shift due to improper installation or impact, thus affecting normal use. The guide mechanism can assist in the installation of the outer flame cover and limit its shift after installation.

[0032] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the guiding mechanism 6 includes a positioning post 61 disposed on the burner head 2, a positioning screw 62 inserted into the positioning post 61, and a positioning nut 63 disposed on the positioning screw 62. By adjusting the position of the positioning nut, the extension height of the positioning screw can be adjusted to accommodate different burners and outer flame covers.

[0033] Furthermore, as a preferred embodiment of this solution and not a limitation, the outer burner cap 4 is provided with a positioning hole 64, and the positioning post 61 supports the positioning nut 63, so that the lower end of the positioning post 61 is inserted into the positioning post 64, and the upper end is higher than the outer burner cap 4. During installation, the positioning post is first inserted into the positioning hole, so that the position of the outer burner cap corresponds to the position of the outer ring, which facilitates installation. After the outer burner cap is installed, even if it is bumped by a pot or accidentally bumped while wiping the stove, the positioning post remains inserted in the positioning hole, thereby limiting the displacement of the outer burner cap.

[0034] Furthermore, as a preferred embodiment of this solution and not a limitation, a groove 65 is provided on the side wall of the outer annular cavity 25. When the positioning nut 63 is inserted into the positioning post 61 along with the positioning screw 62, the groove 65 allows the positioning nut 63 to be embedded and restricts its rotation, thus preventing changes in the protrusion height of the positioning post.

[0035] Furthermore, as a preferred embodiment of this solution and not a limitation, the positioning post 61 is integrally formed with the inner wall of the outer annular cavity 25. This helps to reduce the volume occupied and increases the structural strength of the positioning post.

[0036] The bottom of the outer annular cavity 25 gradually rises counterclockwise, while the bottom of the inner annular cavity 26 gradually rises clockwise. This helps to increase the injection pressure and ensure more complete combustion.

[0037] Furthermore, as a preferred embodiment of this solution and not a limitation, the outer premixing pipe 21 and the inner premixing pipe 22 connect the outer ring 23 and the inner ring 24, such that the outer ring 23 and the inner ring 24 are spaced apart. The outer premixing pipe and the inner premixing pipe also serve as a connecting structure, which helps to reduce volume.

[0038] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the burner head 2 is provided with a clearance notch 27 for making way for the ignition needle, the clearance notch 27 being located in the gap between the outer ring 23 and the inner ring 24.

[0039] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. A burner characterized by: include A burner head (2) is provided with an outer premixing pipe (21) and an inner premixing pipe (22), an outer ring (23), an inner ring (24), an outer ring cavity (25) provided on the outer ring (23) and connected to the outer premixing pipe (21), and an inner ring cavity (26) provided on the inner ring (24) and connected to the inner premixing pipe (22). The outer ring cavity (25) includes a first groove bottom (251), a second groove bottom (252), and a third groove bottom (253) that gradually rise in a counterclockwise direction. The inner ring cavity (26) includes a fourth groove bottom (261), a fifth groove bottom (262), and a sixth groove bottom (263) that gradually rise in a clockwise direction. The outer premixing pipe (21) penetrates into the inner ring cavity (26) so that its outer wall forms the sixth groove bottom (263). The outer premixing tube (21) is connected to the right side of the outer annular cavity (25), and the outer annular cavity (25) is provided with an outer blocking part (211) corresponding to the right side of the outlet of the outer premixing tube (21); the inner cavity of the outer premixing tube (21) extends along the outlet direction to be embedded in the outer annular cavity (25) to form the outer blocking part (211); The inner premixing tube (22) is connected to the left side of the inner ring cavity (26), and the inner ring cavity (26) is provided with an inner blocking part (221) corresponding to the left side of the outlet of the inner premixing tube (22); the inner cavity of the inner premixing tube (22) extends along the outlet direction to be embedded in the inner ring cavity (26) to form the inner blocking part (221).

2. A burner as claimed in claim 1, characterised in that: The width of the outer blocking part (211) is one-third of the radius of the outer premixing tube (21).

3. A burner as claimed in claim 1, characterised in that: The width of the inner blocking part (221) is one-third of the radius of the inner premixing tube (22).

4. A burner as claimed in claim 1, characterised in that: The burner head (2) is provided with an outer flame cover (4) covering the outer ring cavity (25), and the burner head (2) is provided with a guide mechanism (6) for guiding the outer flame cover (4) to connect with the outer ring (23).

5. A burner as claimed in claim 4, characterised in that: The guiding mechanism (6) includes a positioning post (61) disposed on the burner head (2), a positioning screw (62) inserted into the positioning post (61), and a positioning nut (63) disposed on the positioning screw (62).

6. A burner as claimed in claim 5, characterised in that: The outer flame cap (4) is provided with a positioning hole (64), and the positioning post (61) supports the positioning nut (63) so that the lower end of the positioning post (61) is inserted into the positioning post (61) and the upper end is higher than the outer flame cap (4).

7. A burner as claimed in claim 5, characterised in that: The outer annular cavity (25) has a groove (65) on its side wall. When the positioning nut (63) is inserted into the positioning post (61) along with the positioning screw (62), the groove (65) allows the positioning nut (63) to be embedded and restricts its rotation.

8. A burner as claimed in claim 5, characterised in that: The positioning post (61) is integrally formed with the inner wall of the outer annular cavity (25).

9. A burner as claimed in claim 1, characterised in that: The outer premix tube (21) and the inner premix tube (22) connect the outer ring (23) and the inner ring (24) so ​​that the outer ring (23) and the inner ring (24) are spaced apart.

10. The burner of claim 1, wherein: The furnace end (2) is provided with a let-out notch (27) for letting out the striking needle, and the let-out notch (27) is located at the gap between the outer ring (23) and the inner ring (24).

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