Manufacturing process of fire hole core for low-noise combustor

Abstract

The invention discloses a manufacturing process of a fire hole core for a low-noise combustor. The manufacturing process comprises the following steps: Step 1, punching a positioning hole; 2, a fire hole is formed in a punching mode; step3, cutting a notch and cutting a first flange, and Step4, firstly bending a bending area, a fire hole area and the first flange downwards along the center line of the closure area, then bending upwards along the boundaries of the fire hole area and the closure area, and finally bending upwards along the boundaries of the other bending area and the closure area, and at the moment, the closure area can form a V-shaped closure plate; 5, the V-shaped intercepting plate is pressed in a fit mode; 6, a second flange is cut; and 7, the bending area is bent upwards along the boundary of the bending area and the fire hole area, the first blocking edge and the second blocking edge are bent in the direction of the V-shaped intercepting plate, and the integrated fire hole core is formed. The fire hole core formed through the manufacturing process is of an integrated structure, the adjacent fire hole areas do not need to be welded, the interceptor plate and the fire hole areas do not need to be welded, consistency is good, noise is further reduced, and meanwhile the situation that combustion is affected due to the fact that the two fire hole areas are not flush is effectively avoided.

Description

Technical Field

[0001] The invention relates to a manufacturing process of a fire hole core for a low-noise burner. Background Art

[0002] The low noise burner includes a fire hole core, which includes two fire hole areas. Each fire hole area is provided with a fire hole, and a shutoff plate is welded between the two fire hole areas. However, the manufacturing process has the following problems: when welding the shutoff plate, it is difficult to align, thereby affecting the combustion effect. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a manufacturing process for a fire hole core for a low-noise burner.

[0004] In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

[0005] A manufacturing process of a fire hole core for a low-noise burner comprises the following steps:

[0006] Step 1: Punch positioning holes on the operating table and position the substrate to be processed on the operating table;

[0007] Step 2: at least two fire hole areas are defined on the substrate, the substrate between the two fire hole areas is defined as a cut-off area, and multiple fire holes are punched at intervals on each fire hole area; after the idle step, the next step of punching fire holes is performed, and fire holes are punched twice on the fire hole areas between adjacent fire holes;

[0008] Step 3: define two fire hole areas on the substrate facing away from each other as bending areas, cut a notch on the bending area, cut a first rib on one side of the fire hole area, the first rib and the fire hole area are an integral structure, and an empty step is performed after the edge cutting is completed;

[0009] Step 4: First, bend a bending area, a fire hole area, and a first retaining edge downward along the center line of the interception area, then bend upward along the boundary between the fire hole area and the interception area, and finally bend upward along the boundary between another bending area and the interception area, at which time the interception area will form a V-shaped interception plate;

[0010] Step 5: Press the V-shaped intercepting plate to make it fit;

[0011] Step 6: A second rib is cut on the other side of the fire hole area, and the second rib is an integral structure with the fire hole area;

[0012] Step 7: Cut off the connection between the second rib and the substrate, bend the bending area upward along the boundary between the bending area and the fire hole area, and bend the first rib and the second rib along the direction of the V-shaped intercepting plate, that is, the first rib, the second rib, the folded V-shaped intercepting plate, and the bending area are surrounded to form multiple cavities to form an integrated fire hole core.

[0013] Preferably, the notch is an arc structure.

[0014] Preferably, all the fire holes are strip-shaped holes and are parallel to each other.

[0015] The beneficial effects of the present invention are:

[0016] The fire hole core formed by the manufacturing process of the present application is an integrated structure. There is no need for welding between adjacent fire hole areas, and there is no need for welding between the intercepting plate and the fire hole area. The consistency is good, which further reduces noise and effectively avoids the situation where the two fire hole areas are uneven and affect combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings;

[0018] Figure 1 The present invention relates to a manufacturing process of a fire hole core for a low noise burner. Figure 1 ;

[0019] Figure 2 The present invention relates to a manufacturing process of a fire hole core for a low noise burner. Figure 2 ;

[0020] Figure 3 This is a structural diagram of the fire hole core. DETAILED DESCRIPTION

[0021] 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.

[0022] 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.

[0023] 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.

[0024] A manufacturing process of a fire hole core for a low-noise burner comprises the following steps:

[0025] Step 1: Figure 1 The process No. 1 is punching, in which a positioning hole is punched on an operating table to position the substrate to be processed on the operating table, which is not shown in the figure;

[0026] Step2: Figure 1 The process No. 2 is punching fire holes. At least two fire hole areas 1-1 are defined on the substrate. The substrate between the two fire hole areas 1-1 is defined as a cutoff area 1-2. Multiple fire holes 1-3 are punched at intervals on each fire hole area 1-1. Figure 1 The process No. 3 is an empty step, which means no processing and static. Then the next step No. 4 is carried out, and the fire hole punching operation is performed to punch the fire holes 1-3 twice on the substrate between the adjacent fire holes 1-3.

[0027] Step 3: define two fire hole areas 1-1 on the substrate facing away from each other as bending areas 1-4, cut a notch 1-5 on the bending area 1-4, cut a first rib 1-6 on one side of the fire hole area 1-1, the first rib 1-6 and the fire hole area 1-1 are an integral structure, that is, Figure 1 The trimming process shown in sequence number 5; after the trimming is completed, an empty step is performed, that is, Figure 1 As shown in serial number 6.

[0028] Step 4: first bend a bending area 1-4, a fire hole area 1-1, and a first retaining edge 1-6 downward along the center line of the interception area 1-2, then bend upward along the boundary of the fire hole area 1-1 and the interception area 1-2, and finally bend upward along the boundary of another bending area 1-4 and the interception area 1-2. At this time, the interception area 1-2 will form a V-shaped interception plate 12. The processes corresponding to serial numbers 7, 8, and 9 are bending to form a Z shape, and serial number 9 corresponds to a folded V-shaped interception plate 12; the specific bending steps are as follows: Figure 2 As shown in the partial enlarged figure.

[0029] Step 5: Press the V-shaped intercepting plate 12 to make it fit;

[0030] Step 6: A second rib 1-7 is cut on the other side of the fire hole area 1-1, and the second rib 1-7 and the fire hole area 1-1 are an integral structure;

[0031] Step 7: Cut off the connection between the second retaining edge 1-7 and the substrate, bend the bending area 1-4 upward along the boundary between the bending area 1-4 and the fire hole area 1-1, and bend the first retaining edge 1-6 and the second retaining edge 1-7 along the direction of the V-shaped intercepting plate 12, that is, the first retaining edge 1-6, the second retaining edge 1-7, the V-shaped intercepting plate 12, and the bending area 1-4 are surrounded to form multiple cavities to form an integrated fire hole core, such as Figure 3 shown.

[0032] In the above technical solution, as Example 1, the notch 1-5 can be designed as an arc structure, and the fire holes 1-3 can be designed as strip holes that are parallel to each other.

[0033] The fire hole core formed by the manufacturing process of the present application is an integrated structure. There is no need for welding between adjacent fire hole areas 1-1, and there is no need for welding between the intercepting plate and the fire hole area 1-1. The consistency is good, which further reduces noise and effectively avoids the situation where the two fire hole areas 1-1 are not aligned and affect combustion.

[0034] Although the present invention is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications may be made to the present invention without departing from the principle and spirit of the present invention defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the present invention, but the scope of protection is limited by the content of the claims.

Claims

1. A process for manufacturing a fire hole core for a low noise burner, characterized in that: The following steps are included: Step 1: Punch positioning holes on the operating table and position the substrate to be processed on the operating table; Step 2: at least two fire hole areas (1-1) are defined on the substrate, the substrate between the two fire hole areas (1-1) is defined as a cut-off area (1-2), and a plurality of fire holes (1-3) are punched at intervals on each fire hole area (1-1); after the idle step, the next step of punching fire holes is performed, and fire holes (1-3) are punched again on the fire hole area (1-1) between adjacent fire holes (1-3); Step 3: defining two fire hole areas (1-1) on the substrate facing away from each other as bending areas (1-4), cutting a notch (1-5) on the bending area (1-4), and cutting a first rib (1-6) on one side of the fire hole area (1-1), wherein the first rib (1-6) and the fire hole area (1-1) are an integral structure, and an empty step is performed after the edge cutting is completed; Step 4: firstly, a bending area (1-4), a fire hole area (1-1), and a first retaining edge (1-6) are bent downward along the center line of the intercepting area (1-2), and then bent upward along the boundary between the fire hole area (1-1) and the intercepting area (1-2), and finally bent upward along the boundary between another bending area (1-4) and the intercepting area (1-2), at which time the intercepting area (1-2) forms a V-shaped intercepting plate (12); Step 5: Pressing the V-shaped intercepting plate (12) to make it fit; Step 6: A second rib (1-7) is cut on the other side of the fire hole area (1-1), and the second rib (1-7) and the fire hole area (1-1) are an integrated structure; Step 7: Cut off the connection between the second retaining edge (1-7) and the substrate, bend the bending area (1-4) upward along the boundary between the bending area (1-4) and the fire hole area (1-1), and bend the first retaining edge (1-6) and the second retaining edge (1-7) along the direction of the V-shaped intercepting plate (12), that is, the first retaining edge (1-6), the second retaining edge (1-7), the folded V-shaped intercepting plate (12), and the bending area (1-4) are surrounded to form a plurality of cavities, forming an integrated fire hole (1-3) core.

2. The manufacturing process of the fire hole core for a low noise burner according to claim 1, characterized in that: The notch (1-5) is an arc structure.

3. The manufacturing process of the fire hole core for a low noise burner according to claim 1, characterized in that: All the fire holes (1-3) are strip-shaped holes and are parallel to each other.

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