Low-noise combustor

Abstract

The invention discloses a low-noise combustor which comprises a combustion head, the combustion head comprises at least two fire hole cores, fire holes are formed in the fire hole cores, a flow intercepting plate is arranged between every two adjacent fire hole cores, and the fire hole cores and the flow intercepting plates are of an integrated structure. Due to the existence of the intercepting plates, the cavity below the combustion head is divided into a plurality of small cavities, and when the fan sucks air, part of gas below the combustion head is blocked and intercepted by the intercepting plates, so that disturbance of airflow in each small cavity is effectively reduced, and noise is reduced; moreover, as the interceptor plate and the fire hole cores are of the integrated structure, the adjacent fire hole cores do not need to be welded, the interceptor plate and the fire hole cores do not need to be welded, the consistency is good, noise is further reduced, and meanwhile the situation that combustion is affected due to the fact that the two fire hole cores are not aligned is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of burners, in particular to a low-noise burner. Background Art

[0002] A burner is provided in the gas water heater. A fire hole is provided on the combustion head of the existing burner. When the burner is working, the fan is started, and the gas enters the combustion head from the ejector pipe for combustion. Since there is a hollow cavity under the combustion head, the combustion head is prone to airflow disturbance when the fan is exhausting air, thereby generating a large noise. Summary of the invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a low-noise burner.

[0004] A low-noise burner according to an embodiment of the present invention comprises a combustion head, wherein the combustion head comprises at least two fire hole cores, each of which is provided with a fire hole, and a cutoff plate is provided between two adjacent fire hole cores, wherein the fire hole core and the cutoff plate are an integrated structure.

[0005] The low-noise burner according to the embodiment of the present invention has at least the following beneficial effects: due to the existence of the shut-off plate, the cavity below the burner head is divided into multiple small cavities. When the fan is exhausting air, part of the gas below the burner head is blocked by the shut-off plate, thereby effectively reducing the disturbance of the airflow in each small cavity and reducing noise; and, since the shut-off plate and the fire hole core are an integrated structure, there is no need for welding between adjacent fire hole cores, and there is no need for welding between the shut-off plate and the fire hole core, so the consistency is good, which further reduces noise and effectively avoids the situation where the two fire hole cores are not aligned and affect combustion.

[0006] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings;

[0008] Figure 1 It is a three-dimensional picture of a low-noise burner;

[0009] Figure 2 This is the explosion structure diagram of the low noise burner;

[0010] Figure 3 is a cross-sectional view of a low noise burner;

[0011] Figure 4 This is a structural diagram of the fire hole core. DETAILED DESCRIPTION

[0012] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0013] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0014] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0015] Reference Figures 1 to 4 The present invention discloses a low-noise burner, comprising: a combustion head, wherein the combustion head comprises at least two fire hole cores 10, the fire hole cores 10 are provided with fire holes 11, and a cut-off plate 12 is provided between two adjacent fire hole cores 10, and the fire hole cores 10 and the cut-off plate 12 are an integrated structure. Due to the existence of the cut-off plate 12, the cavity below the combustion head is divided into a plurality of small cavities 100, and when the fan exhausts air, part of the gas below the combustion head is blocked by the cut-off plate 12, thereby effectively reducing the disturbance of the airflow in each small cavity 1001 and reducing the noise; and, since the cut-off plate 12 and the fire hole core 10 are an integrated structure, there is no need to weld between adjacent fire hole cores 10, and there is no need to weld between the cut-off plate 12 and the fire hole core 10, and the consistency is good, which further reduces the noise, and at the same time effectively avoids the situation where the two fire hole cores 10 are not aligned and affect the combustion.

[0016] like Figure 3 As shown, the fire hole core 10 includes a fire hole portion 13, and the fire hole 11 is arranged on the surface of the fire hole portion 13. Both sides of the fire hole portion 13 are bent downward to form a bent portion 14. The adjacent two bent portions 14 of two adjacent fire hole cores 10 are connected to form a cutoff plate 12, that is, the adjacent two fire hole cores 10 and the cutoff plate 12 are integrated into an M shape, which is convenient for processing and manufacturing.

[0017] like Figure 4 The front end and the rear end of the burner head are respectively provided with downward ribs 15 , and the ribs 15 are respectively enclosed with the multiple bending portions 14 to form multiple small cavities 100 .

[0018] like Figure 2 and Figure 3 The surface of the fire hole portion 13 is concave downward to form a V-shaped structure, which increases the surface of the fire hole portion 13 and slows down the gas flow rate at the fire hole 11, which can further reduce the noise caused by excessive flow rate.

[0019] like Figure 2 and 3 , further comprising a shell, an opening is provided at the upper end of the shell, an air inlet is provided at the lower end of the shell, a burner head is arranged in the shell through the opening, a plurality of vertical convex ribs 23 are provided on the inner wall of the shell, the bent portions 14 on both sides of the burner head are respectively in contact with the convex ribs 23 to form a plurality of pressure stabilizing chambers 20, the upper part of the pressure stabilizing chamber 20 is connected with the opening, and the lower part of the pressure stabilizing chamber 20 is connected with the air inlet. Part of the mixed gas enters the corresponding pressure stabilizing chamber 20, and the pressure stabilizing chamber 20 has the function of releasing the pressure of the burner head and generating a small fire to stabilize the main flame.

[0020] Further, such as Figure 3 As shown, the inner wall of the pressure stabilizing chamber 20 is recessed outward to expand the volume of the pressure stabilizing chamber 20 , and notches 141 are respectively provided on the bent portions 14 on both sides of the burner head to facilitate the gas to enter the pressure stabilizing chamber 20 through the notches.

[0021] like Figure 2 In some embodiments, the housing includes a left housing 21 and a right housing 22 that are detachably connected. A plurality of convex ribs 23 are respectively provided on the inner walls of the left housing 21 and the inner walls of the right housing 22. The bent portion 14 on the left side of the burner head abuts against the convex ribs 23 on the left housing 21 to form a pressure stabilizing chamber 20. The bent portion 14 on the right side of the burner head abuts against the convex ribs 23 on the right housing 22 to form a pressure stabilizing chamber 20. The detachable connection of the left and right housings 22 facilitates assembly and maintenance of the burner.

[0022] It is easy for those skilled in the art to understand that the above preferred embodiments can be freely combined and superimposed without conflict.

[0023] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A low noise burner, characterized in that: include: A burner head, the burner head comprising at least two fire hole cores (10), the fire hole cores (10) being provided with fire holes (11), a cut-off plate (12) being provided between two adjacent fire hole cores (10), the fire hole cores (10) and the cut-off plate (12) being an integrated structure.

2. The low noise burner according to claim 1, characterized in that: The fire hole core (10) comprises a fire hole portion (13), the fire hole (11) is arranged on the surface of the fire hole portion (13), both sides of the fire hole portion (13) are respectively bent downward to form a bent portion (14), and two adjacent bent portions (14) of two adjacent fire hole cores (10) are connected to form the intercepting plate (12).

3. The low noise burner according to claim 2, characterized in that: The front end and the rear end of the burner head are respectively provided with downward retaining edges (15), and the retaining edges (15) are respectively combined with the plurality of bent portions (14) and the cutoff plate (12) to form a plurality of small cavities (100).

4. The low noise burner according to claim 2, characterized in that: The surface of the fire hole portion (13) is concave downward to form a V-shaped structure.

5. The low noise burner according to claim 2, characterized in that: The invention also comprises a shell, wherein an opening is provided at the upper end of the shell, an air inlet is provided at the lower end of the shell, the burner head is arranged in the shell through the opening, a plurality of vertical convex ribs (23) are provided on the inner wall of the shell, the bent portions (14) on both sides of the burner head are respectively abutted against the convex ribs (23) to form a plurality of pressure-stabilizing chambers (20), the upper part of the pressure-stabilizing chamber (20) is connected to the opening, and the lower part of the pressure-stabilizing chamber (20) is connected to the air inlet.

6. The low noise burner according to claim 5, characterized in that: The inner wall of the pressure stabilizing chamber (20) is recessed outwards to expand the volume of the pressure stabilizing chamber (20), and the bent portions (14) on both sides of the burner head are respectively provided with notches (141) to facilitate the gas to enter the pressure stabilizing chamber (20) through the notches (141).

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