Combustor fire row piece with pressure reducing arm

Abstract

The utility model discloses a burner fire grate piece with a pressure reducing arm. The burner fire grate piece comprises a fire grate shell, a burning plate, a connecting part and the pressure reducing arm. A combustion chamber and an air inlet cavity which are arranged up and down and are communicated are arranged in the fire grate shell; the combustion plate is arranged at the top of the combustion chamber, a plurality of fire holes are formed in the combustion plate, and a plurality of lateral fire holes adjacent to the fire holes are formed in the two sides of the top of the combustion chamber; the two connecting parts extend out of the two ends of the combustion chamber correspondingly. The two pressure reducing arms are distributed in the length direction of the two sides of the combustion chamber correspondingly, and a secondary mixing area is formed among the pressure reducing arms, the connecting part and the side wall of the combustion chamber. The lateral fire holes are formed in the two sides of the combustion chamber, and the pressure reducing arms connected with the combustion chamber and the connecting part are additionally arranged on one sides of the lateral fire holes, so that the functions of flow division and pressure reduction of fuel gas are achieved, the fuel gas flowing out of the lateral fire holes is subjected to secondary combustion in the secondary mixing area, then flames are sprayed out, the combustion efficiency of the fuel gas is high, and the combustion efficiency of the fuel gas is improved. And the overall cost is low.

Description

Technical Field

[0001] The utility model relates to a fire strip, in particular to a burner fire strip with a pressure reducing arm. Background Art

[0002] The fire row piece is an important component in the burner. The existing fire row piece is punched out by stamping. It is mainly used for the key functional parts involved in combustion, such as the flow channel and burner for gas propulsion. After the gas passes through the complex flow channel and burner of the fire row, in order to ensure the stability of the flame during combustion and maximize the thermal efficiency, the existing processing method usually requires subtle changes and adjustments to the flow channel and burner. The reason is that the design changes of the flow channel and burner directly affect the combustion efficiency of the fire row and the stability of the flame, and the change of the flow channel shape will change the flow path, speed and flow direction of the gas in the fire row, thereby affecting the combustion efficiency and the stability of the flame.

[0003] However, if only minor changes are made, the combustion effect may not meet the desired requirements. If the flow channel shape is changed too much, it may lead to incomplete combustion and inconsistent flame direction and height, which in turn leads to substandard combustion indicators and failure to meet quality standards, and further increases production costs. Therefore, existing products cannot meet actual usage needs. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a burner fire row piece with a pressure reducing arm, which has low processing cost and high combustion efficiency.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a burner fire strip with a pressure reducing arm, comprising:

[0006] A fire bar shell, wherein the fire bar shell has a combustion chamber and an air intake cavity arranged vertically and communicating with each other;

[0007] A combustion plate is arranged on the top of the combustion chamber, and a plurality of fire holes are opened on the combustion plate, wherein a plurality of lateral fire holes are opened on both sides of the top of the combustion chamber and are adjacent to the fire holes;

[0008] A connecting portion, wherein the two connecting portions extend from two ends of the combustion chamber respectively;

[0009] Decompression arms, the two decompression arms are distributed along the length direction of both sides of the combustion chamber, and a secondary mixing area is formed between the decompression arms, the connecting part and the side wall of the combustion chamber, wherein the lateral fire hole points into the secondary mixing area.

[0010] Furthermore, the fire bar shell includes a first plate body and a second plate body, and the first plate body and the second plate body are respectively provided with a combustion chamber and an air intake cavity.

[0011] Furthermore, the fire holes include elongated fire holes and circular fire holes, two parallel elongated fire holes and two circular fire holes located on both sides of the elongated fire holes constitute a group of fire hole assemblies, and multiple fire hole assemblies are opened on the combustion plate.

[0012] Furthermore, the pressure reducing arm includes a first pressure reducing portion and a second pressure reducing portion; the first pressure reducing portion is distributed along the length direction of the combustion chamber and is connected to the side wall of the combustion chamber; a second pressure reducing portion is provided at each end of the first pressure reducing portion, and the two second pressure reducing portions are connected to the connecting portions on both sides, and the bottom of the second pressure reducing portion is connected to the side wall of the combustion chamber, wherein the connecting portion, the first pressure reducing portion, the second pressure reducing portion and the combustion chamber constitute the secondary mixing area.

[0013] Furthermore, the lateral fire hole and the fire hole are arranged vertically.

[0014] Furthermore, the plurality of lateral fire holes are linearly distributed on both sides of the combustion chamber.

[0015] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0016] The utility model discloses a burner fire row piece with a pressure reducing arm, a plurality of lateral fire holes are opened on both sides of the combustion chamber, and a pressure reducing arm connected with the combustion chamber and the connecting part is added on one side of the lateral fire hole, which plays the role of diverting and reducing the pressure of the gas. The pressure reducing arm, the connecting part and the combustion chamber constitute a secondary mixing area. The gas flowing out from the lateral fire hole will be subjected to secondary combustion in the secondary mixing area and then spray out flames. In this way, the gas and air can be mixed and fully burned, thereby improving the combustion efficiency, and at the same time the stability is high and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The technical solution of the utility model is further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a front view of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of an embodiment of the present utility model;

[0020] Figure 3 For attachment Figure 2 A magnified view of part A in FIG;

[0021] Figure 4 This is a partial schematic diagram of an embodiment of the present utility model;

[0022] Figure 5 for Figure 4 A partial schematic diagram of

[0023] Among them: 1. Fire bar shell; 2. Combustion plate; 3. Connecting part; 4. Decompression arm; 10. Combustion chamber; 11. Air inlet cavity; 12. Second plate body; 13. First plate body; 20. Fire hole; 21. Lateral fire hole; 30. Secondary mixing area; 40. First decompression part; 42. Second decompression part. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0025] The utility model provides a burner fire row piece with a pressure reducing arm, so as to solve the problems in the prior art that the stability and thermal combustion efficiency of the burner fire row piece cannot meet the requirements and the processing cost is high.

[0026] For ease of understanding, the specific process in the embodiment of this application is described below. Figures 1 to 4 In the embodiment of the present application, a burner fire bar with a pressure reducing arm comprises a fire bar shell 1, a combustion plate 2, a connecting portion 3 and a pressure reducing arm 4; the fire bar shell 1 is provided with a combustion chamber 10 and an air intake cavity 11 arranged vertically and communicating with each other; the combustion plate 2 is provided at the top of the combustion chamber 10, and a plurality of fire holes 20 are provided on the combustion plate 2. A plurality of lateral fire holes 21 are provided on both sides of the top of the combustion chamber 10 and are adjacent to the fire holes 20; the two connecting portions 3 extend from both ends of the combustion chamber 10 respectively; the two pressure reducing arms 4 are distributed along the length direction of both sides of the combustion chamber 10, and a secondary mixing area 30 is formed between the pressure reducing arm 4, the connecting portion 3 and the side wall of the combustion chamber 10, and the lateral fire holes 21 point into the secondary mixing area 30.

[0027] The burner fire strip with pressure reducing arms of the present invention has multiple lateral fire holes 21 on both sides of the combustion chamber 10. After the gas and air are mixed and ignited, flames are not only ejected from the fire holes 20, but the gas and air are also secondary mixed and ignited in the secondary mixing area 30 and then flames are ejected. In this way, the gas and air can be mixed and fully burned, thereby improving the combustion efficiency, and at the same time, the stability is high and the cost is low.

[0028] Further, based on Figure 1 and Figure 4The fire bar shell 1 includes a first plate body 13 and a second plate body 12. A combustion chamber 10 and an air intake cavity 11 are respectively provided in the first plate body 13 and the second plate body 12. The combustion chamber 10 and the air intake cavity 11 are communicated with each other. In this way, after the gas enters from the air intake cavity 11, it is ignited and mixed with air in the combustion chamber 10 and then flames are ejected from the fire hole 20 and the side fire hole 21.

[0029] Further, based on Figure 3 In this embodiment, the fire holes 20 have two shapes: elongated and circular. In this fire row, two parallel elongated fire holes and two circular fire holes located on either side of the elongated fire hole form a group of fire holes. Multiple groups of fire holes 20 are evenly and linearly arranged on the combustion plate 2. The number of fire holes is sufficient to enable efficient combustion and flame emission after the gas and air are mixed.

[0030] Further, based on Figures 2 to 5 In this embodiment, the addition of the pressure reducing arm 4 can divert and reduce the pressure of the gas, allowing the gas to be burned and converted into heat energy to the maximum extent in the secondary mixing area, ensuring the overall stability during combustion.

[0031] Specifically, the pressure reducing arm 4 includes a first pressure reducing portion 40 and a second pressure reducing portion 41; the first pressure reducing portion 41 is distributed along the length direction of the combustion chamber 10, the first pressure reducing portion is in the shape of a wavy line, and the bottom of the first pressure reducing portion 40 is connected to the side wall of the combustion chamber 10; a second pressure reducing portion 41 is provided at both ends of the first pressure reducing portion 21; the two second pressure reducing portions 41 are respectively connected to the connecting portions 3 on both sides, and the bottom of the second pressure reducing portion 41 is also connected to the side wall of the combustion chamber 10. At the same time, the bottoms of the first pressure reducing portion and the second pressure reducing portion are connected to the combustion chamber 10, so that a secondary mixing area 30 is formed between the connecting portion 3, the first pressure reducing portion 40, the second pressure reducing portion 41 and the combustion chamber 10, and the gas and air ejected from the side fire hole 21 can be secondary mixed and burned in the secondary mixing area, thereby further improving the combustion efficiency.

[0032] Furthermore, the lateral fire hole 21 and the fire hole 20 are arranged vertically, so that the gas and air can be mixed and ignited and ejected from different directions, thereby improving the combustion efficiency.

[0033] Furthermore, the multiple lateral fire holes 21 in this embodiment are linearly distributed on both sides of the combustion chamber 10. Of course, the lateral fire holes 21 can also be distributed in two groups, and the number of lateral fire holes can be set according to actual usage requirements.

[0034] During specific operation, the gas flows into the combustion chamber 10 after passing through the air intake cavity 11, and then the gas is ignited in the combustion chamber 10 and mixed with the air for the first time. After the mixed combustion, part of the flame is directly discharged from the fire hole 20, and part of the gas that is not fully mixed and burned enters the secondary mixing area through the side fire hole 21, and then is mixed with the air for the second time, so that the gas can be fully burned and converted into heat energy to ensure the overall stability during combustion and achieve the advantages of low cost and high thermal efficiency.

[0035] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A burner fire strip with a pressure relief arm, characterized in that: include: A fire bar shell, wherein the fire bar shell has a combustion chamber and an air intake cavity arranged vertically and communicating with each other; A combustion plate is arranged on the top of the combustion chamber, and a plurality of fire holes are opened on the combustion plate, wherein a plurality of lateral fire holes are opened on both sides of the top of the combustion chamber and are adjacent to the fire holes; A connecting portion, wherein the two connecting portions extend from two ends of the combustion chamber respectively; Decompression arms, the two decompression arms are distributed along the length direction of both sides of the combustion chamber, and a secondary mixing area is formed between the decompression arms, the connecting part and the side wall of the combustion chamber, wherein the lateral fire hole points into the secondary mixing area.

2. The burner fire strip with pressure relief arms according to claim 1, characterized in that: The fire bar shell includes a first plate body and a second plate body, wherein a combustion chamber and an air intake cavity are respectively provided in the first plate body and the second plate body.

3. The burner fire strip with pressure relief arms according to claim 1, characterized in that: The fire holes include elongated fire holes and circular fire holes. Two parallel elongated fire holes and two circular fire holes located on both sides of the elongated fire holes form a group of fire hole assemblies. A plurality of the fire hole assemblies are arranged on the combustion plate.

4. The burner fire strip with pressure relief arms according to claim 1, characterized in that: The pressure reducing arm includes a first pressure reducing portion and a second pressure reducing portion; the first pressure reducing portion is distributed along the length direction of the combustion chamber and is connected to the side wall of the combustion chamber; a second pressure reducing portion is provided at both ends of the first pressure reducing portion, and the two second pressure reducing portions are connected to the connecting portions on both sides, and the bottom of the second pressure reducing portion is connected to the side wall of the combustion chamber, wherein the connecting portion, the first pressure reducing portion, the second pressure reducing portion and the combustion chamber constitute the secondary mixing area.

5. The burner fire strip with pressure relief arms according to claim 1, characterized in that: The lateral fire hole is vertically arranged to the fire hole.

6. The burner fire strip with pressure relief arms according to claim 1, characterized in that: The plurality of lateral fire holes are linearly distributed on both sides of the combustion chamber.

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