Combustor for heating stove

Abstract

The utility model relates to a burner for a heating stove. The burner for the heating stove comprises a plurality of burning rows arranged between a first support and a second support. A positioning part for fixing an ignition device is arranged on the inner side of the first bracket or the second bracket; the combustion row is positioned and installed between the first support and the second support, an installation space for containing the ignition device is formed between the first support or the second support and the combustion row, the ignition device is limited in the installation space through the positioning part, and when the combustion row sprays out fuel gas, the ignition device ignites and acts on the fuel gas sprayed out of the combustion row. Therefore, flames are generated on the combustion row. According to the combustor, the ignition device is arranged in the internal space of the combustor, and the ignition device is not arranged on the outer side of the combustor, so that the size of the whole combustor is reduced, and the mounting space for mounting the combustor on a machine body can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a burner for a heating furnace. Background Art

[0002] The existing burning ignition needle is generally arranged on the outside of the combustion row of the burner, resulting in a large volume of the burner. For example, Chinese Patent No. 202123377560.3 discloses a burner, which includes a fire row assembly and a guide plate assembly. The fire row assembly includes a first support plate, a second support plate and a plurality of fire rows spaced apart along a first direction. The first support plate and the second support plate are arranged relatively to each other, and the fire row is connected between the first support plate and the second support plate. The upper surface of the fire row has a combustion port. The guide plate assembly includes a guide plate and a bracket. The guide plate includes a plurality of guide covers spaced apart along the first direction. Two adjacent guide covers are connected by a connecting plate, and the bracket is detachably connected to the fire row assembly through the first support plate and the second support plate, respectively. The lower part of the ignition needle of the burner does not have any fixing device, and the ignition needle is positioned and installed only by an inclined matching positioning structure. If a processing error occurs, the installation of the ignition needle will result in a matching error, resulting in the installation of the ignition needle not meeting the expected effect.

[0003] Therefore, further improvement is needed. Utility Model Content

[0004] The utility model aims to provide a burner for a heating furnace, which can reduce the volume of the entire burner by arranging the ignition device in the internal space of the burner, eliminating the need to arrange the ignition device on the outside of the burner, and saving installation space for installing the burner on the machine body.

[0005] The purpose of the utility model is achieved in this way:

[0006] A burner for a heating furnace includes a plurality of combustion rows arranged between a first bracket and a second bracket; a positioning portion for fixing an ignition device is provided on the inner side of the first bracket or the second bracket; the combustion row is positioned and installed between the first bracket and the second bracket, and an installation space for accommodating the ignition device is formed between the first bracket or the second bracket and the combustion row, and the ignition device is limited in the installation space by the positioning portion, and when the combustion row sprays gas, the ignition device ignites and acts on the gas sprayed from the combustion row to generate a flame on the combustion row. By arranging the ignition device in the internal space of the burner, the ignition device is not arranged on the outer side of the burner, thereby reducing the volume of the entire burner, and the installation space for installing the burner on the machine body can be saved.

[0007] Each combustion row includes an ejector pipe. The second bracket is provided with an air intake cavity connected to each ejector pipe. The bottom of the air intake cavity is provided with an air intake pipe for connecting to the gas transmission pipeline. The air intake cavity and the air intake pipe are arranged as a whole. A sealing plate is provided on the air intake cavity. The sealing plate abuts against the opening on one side of the air intake cavity. The inner cavity of the air intake cavity forms a relatively closed cavity through the sealing plate. The gas enters the ejector pipe of the combustion row through the air intake pipe and the air intake cavity. The gas is finally ejected out of the burner through the combustion row.

[0008] The air intake cavity and the air intake pipe are arranged as a whole to avoid gas leakage at the connection between the air intake pipe and the air intake cavity. The inner cavity of the air intake cavity is formed into a relatively closed cavity through the sealing plate to prevent gas leakage.

[0009] The positioning part includes a first clamping block and a second clamping block, a notch is provided between the first clamping block and the second clamping block, an elastic limiting groove for clamping an ignition needle or a sensing needle of the ignition device is formed between the first clamping block and the second clamping block, and the ignition needle or the sensing needle of the ignition device is limited between the first clamping block and the second clamping block. The ignition needle or the sensing needle of the ignition device is clamped by elasticity to avoid poor assembly due to processing errors.

[0010] The outer diameter of the ignition needle and the sensing needle is smaller than the interval between the first clamping block and the second clamping block. When the ignition needle or the sensing needle is installed between the first clamping block and the second clamping block, the ignition needle or the sensing needle will open the first clamping block and the second clamping block.

[0011] The first bracket is provided with a first plug-in slot, and the second bracket is provided with a second plug-in slot. One end of the combustion row is inserted into the first plug-in slot, and the other end of the combustion row is inserted into the second plug-in slot. One end portion of the combustion row abuts against the inner side of the first bracket, and the other end portion of the combustion row abuts against the second bracket, so that the combustion row is limitedly installed between the first bracket and the second bracket.

[0012] The first bracket is provided with a supporting part for supporting the combustion row, and the supporting part is arranged on the inner side of the first bracket. The supporting part is provided with an installation avoidance position corresponding to the ignition needle and the sensing needle of the ignition device. The bottom of the ignition needle and the sensing needle of the ignition device penetrates and is inserted into the installation avoidance position on the supporting part, and two first positioning blocks and second positioning blocks are provided at intervals at the bottom of the supporting part. The left and right ends of the first positioning block and the second positioning block are respectively provided with connecting ears for inserting fasteners. The fasteners are inserted into the connecting ears of the first positioning block and the second positioning block to lock the first positioning block and the second positioning block, and lock the ignition needle or the sensing needle of the ignition device between the first positioning block and the second positioning block.

[0013] A first positioning block and a second positioning block are provided at the bottom of the combustion row corresponding to the ignition needle and the sensing needle, thereby effectively fixing the ignition device on the burner.

[0014] The second bracket is provided with an air vent corresponding to the air inlet of each combustion row, and the end of the combustion row is inserted into the air vent.

[0015] The combustion row comprises a conical contraction section, an ejector throat section and a diffusion section for sequentially introducing the combustion gas, and the combustion gas enters the combustion row through the conical contraction section, the ejector throat section and the diffusion section.

[0016] A number of gas injection holes of different shapes and different air outlet areas are provided on the top of the combustion row near the ignition device, which is beneficial to increase the gas outlet area and ensure that the flame can quickly spread to the gas outlet hole behind the gas injection hole, thereby achieving the purpose of improving the success rate of fire transfer.

[0017] A plurality of gas outlet holes are arranged linearly and spaced apart on the rear side of the top of the combustion row corresponding to the gas injection hole, and each gas outlet hole is in the shape of a long strip; or, each gas outlet hole includes two circular, elliptical or polygonal gas outlet holes, and a long strip gas outlet hole is provided between the two circular, elliptical or polygonal gas outlet holes to increase the gas outlet area.

[0018] The beneficial effects of the utility model are as follows:

[0019] An installation space for accommodating the ignition device is formed between the first bracket or the second bracket and the combustion row. The ignition device is limited in the installation space by the positioning part. When the combustion row sprays gas, the ignition device ignites and acts on the gas sprayed from the combustion row to generate a flame on the combustion row. By arranging the ignition device in the internal space of the burner, the ignition device is not arranged on the outside of the burner, thereby reducing the volume of the entire burner, and saving the installation space for installing the burner on the machine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of a burner according to an embodiment of the utility model.

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of a burner in another aspect of an embodiment of the utility model.

[0022] Figure 3 This is a schematic diagram of the assembly and decomposition structure of a burner according to an embodiment of the utility model.

[0023] Figure 4 It is a schematic diagram of the side structure of a burner according to an embodiment of the utility model.

[0024] Figure 5 It is a schematic diagram of the structure of a burner in a top view according to an embodiment of the utility model. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-Figure 5 A burner for a heating furnace includes a plurality of combustion rows 3 arranged between a first bracket 1 and a second bracket 2; a positioning portion 5 for fixing an ignition device 4 is provided on the inner side of the first bracket 1 or the second bracket 2; the combustion row 3 is positioned and installed between the first bracket 1 and the second bracket 2, and an installation space for accommodating the ignition device 4 is formed between the first bracket 1 or the second bracket 2 and the combustion row 3, and the ignition device 4 is limited in the installation space by the positioning portion 5. When the combustion row 3 sprays gas, the ignition device 4 ignites and acts on the gas sprayed from the combustion row 3 to generate a flame on the combustion row 3.

[0027] In this embodiment, the ignition device 4 is a prior art and will not be described in detail here.

[0028] Each combustion row 3 includes an ejector pipe 6. An air intake cavity 7 connected to each ejector pipe 6 is provided on the second bracket 2. An air intake pipe 8 for connecting to a gas delivery pipeline is provided at the bottom of the air intake cavity 7. The air intake cavity 7 and the air intake pipe 8 are arranged as a whole. A sealing plate 9 is provided on the air intake cavity 7. The sealing plate 9 abuts against an opening on one side of the air intake cavity 7. The inner cavity of the air intake cavity 7 forms a relatively closed cavity through the sealing plate 9. The gas enters the ejector pipe 6 of the combustion row 3 through the air intake pipe 8 and the air intake cavity 7. The gas is finally ejected out of the burner through the combustion row 3.

[0029] In this embodiment, a seal is provided between the air inlet cavity 7 and the sealing plate 9. The sealing plate 9 is provided with a sealing groove for installing the seal. The sealing plate 9 is fixed to the air inlet cavity 7 by snap fastening or screw fastening. The sealing plate 9 completely covers the opening of the air inlet cavity 7.

[0030] The positioning portion 5 includes a first clamping block 10 and a second clamping block 11. A notch 12 is provided between the first clamping block 10 and the second clamping block 11. An elastic limiting groove for clamping an ignition needle or a sensing needle of the ignition device 4 is formed between the first clamping block 10 and the second clamping block 11. The ignition needle or the sensing needle of the ignition device 4 is limited between the first clamping block 10 and the second clamping block 11.

[0031] The outer diameters of the ignition needle and the induction needle are smaller than the interval between the first clamping block 10 and the second clamping block 11 .

[0032] The first bracket 1 is provided with a first plug-in slot 13, and the second bracket 2 is provided with a second plug-in slot 14. One end of the combustion row 3 is inserted into the first plug-in slot 13, and the other end of the combustion row 3 is inserted into the second plug-in slot 14. One end of the combustion row 3 abuts against the inner side of the first bracket 1, and the other end of the combustion row 3 abuts against the second bracket 2, so that the combustion row 3 is limitedly installed between the first bracket 1 and the second bracket 2.

[0033] In this embodiment, each combustion row 3 is provided with an insertion hole for inserting a connecting rod, so that each combustion row 3 is connected in series.

[0034] The first bracket 1 is provided with a supporting portion 15 for supporting the combustion row 3, and the supporting portion 15 is arranged on the inner side of the first bracket 1. The supporting portion 15 is provided with an installation avoidance position corresponding to the ignition needle and the sensing needle of the ignition device 4. The bottom of the ignition needle and the sensing needle of the ignition device 4 penetrates and is inserted into the installation avoidance position on the supporting portion 15, and two first positioning blocks 16 and second positioning blocks 17 arranged at intervals are provided at the bottom of the supporting portion 15. The left and right ends of the first positioning blocks 16 and the second positioning blocks 17 are respectively provided with connecting ears for inserting fasteners. The fasteners are inserted into the connecting ears of the first positioning blocks 16 and the second positioning blocks 17 to lock the first positioning blocks 16 and the second positioning blocks 17, and lock the ignition needle or the sensing needle of the ignition device 4 between the first positioning blocks 16 and the second positioning blocks 17.

[0035] In this embodiment, the connecting ears of the first positioning block 16 and the second positioning block 17 are both provided with screw holes for inserting screws.

[0036] The second bracket 2 is provided with an air vent 18 corresponding to the air inlet of each combustion row 3 .

[0037] The combustion row 3 includes a conical contraction section 19 , an ejector throat section 20 , and a diffusion section 21 for sequentially introducing the combustion gas. The combustion gas enters the combustion row 3 through the conical contraction section 19 , the ejector throat section 20 , and the diffusion section 21 .

[0038] A plurality of gas injection holes 22 with different shapes and different air outlet areas are provided on the top of the combustion row 3 near the ignition device 4 .

[0039] A plurality of gas outlet holes 23 are provided on the top of the combustion row 3 at the rear side corresponding to the gas injection hole portion 22 and arranged in a linear manner, and each gas outlet hole 23 is in a long strip shape; or, each gas outlet hole 23 includes two circular, elliptical or polygonal gas outlet holes 23, and a long strip gas outlet hole 23 is provided between the two circular, elliptical or polygonal gas outlet holes 23.

[0040] The above is a preferred embodiment of the utility model, which shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A burner for a heating furnace, comprising a plurality of combustion rows (3) arranged between a first bracket (1) and a second bracket (2); characterized in that: A positioning portion (5) for fixing the ignition device (4) is provided on the inner side of the first bracket (1) or the second bracket (2); the combustion row (3) is positioned and installed between the first bracket (1) and the second bracket (2); an installation space for accommodating the ignition device (4) is formed between the first bracket (1) or the second bracket (2) and the combustion row (3); the ignition device (4) is limited in position on the installation space by the positioning portion (5); when the combustion row (3) sprays gas, the ignition device (4) ignites and acts on the gas sprayed by the combustion row (3) to generate flames on the combustion row (3).

2. The burner for a heating furnace according to claim 1, characterized in that: Each combustion row (3) comprises an ejector tube (6); an air intake cavity (7) connected to each ejector tube (6) is provided on the second bracket (2); an air intake pipe (8) for connecting to a gas transmission pipeline is provided at the bottom of the air intake cavity (7); the air intake cavity (7) and the air intake pipe (8) are arranged as a whole; a sealing plate (9) is provided on the air intake cavity (7); the sealing plate (9) abuts against an opening on one side of the air intake cavity (7); the inner cavity of the air intake cavity (7) forms a relatively closed cavity through the sealing plate (9); the gas enters the ejector tube (6) of the combustion row (3) through the air intake pipe (8) and the air intake cavity (7); and the gas is finally ejected out of the burner through the combustion row (3).

3. The burner for a heating furnace according to claim 1, characterized in that: The positioning portion (5) comprises a first clamping block (10) and a second clamping block (11); a notch (12) is provided between the first clamping block (10) and the second clamping block (11); an elastic limiting groove for clamping an ignition needle or a sensing needle of the ignition device (4) is formed between the first clamping block (10) and the second clamping block (11); the ignition needle or the sensing needle of the ignition device (4) is limited between the first clamping block (10) and the second clamping block (11).

4. The burner for a heating furnace according to claim 3, characterized in that: The outer diameters of the ignition needle and the induction needle are smaller than the interval between the first clamping block (10) and the second clamping block (11).

5. The burner for a heating furnace according to claim 1, characterized in that: The first bracket (1) is provided with a first insertion groove (13), the second bracket (2) is provided with a second insertion groove (14), one end of the combustion row (3) is inserted into the first insertion groove (13), the other end of the combustion row (3) is inserted into the second insertion groove (14), and one end portion of the combustion row (3) abuts against the inner side of the first bracket (1), and the other end portion of the combustion row (3) abuts against the second bracket (2), so that the combustion row (3) is limitedly installed between the first bracket (1) and the second bracket (2).

6. The burner for a heating furnace according to claim 4, characterized in that: A support portion (15) for supporting the combustion row (3) is provided on the first bracket (1), the support portion (15) being arranged on the inner side of the first bracket (1), and an installation avoidance position is provided on the support portion (15) corresponding to an ignition needle and a sensing needle of the ignition device (4), the bottom of the ignition needle and the sensing needle of the ignition device (4) penetrates and is inserted into the installation avoidance position on the support portion (15), and two first positioning blocks (16) and a second positioning block (17) are provided at the bottom of the support portion (15) and are arranged at intervals, and connecting ears for inserting a fastener are respectively provided at the left and right ends of the first positioning block (16) and the second positioning block (17), and the fastener is inserted into the connecting ears of the first positioning block (16) and the second positioning block (17) to lock the first positioning block (16) and the second positioning block (17), and lock the ignition needle or the sensing needle of the ignition device (4) between the first positioning block (16) and the second positioning block (17).

7. The burner for a heating furnace according to claim 1, characterized in that: The second bracket (2) is provided with an air vent (18) corresponding to the air inlet of each combustion row (3).

8. The burner for a heating furnace according to claim 1, characterized in that: The combustion row (3) comprises a conical contraction section (19), an ejector throat section (20), and a diffusion section (21) for sequentially introducing combustion gas, and the combustion gas enters the combustion row (3) through the conical contraction section (19), the ejector throat section (20), and the diffusion section (21).

9. The burner for a heating furnace according to claim 1, characterized in that: A plurality of gas injection holes (22) having different shapes and different air outlet areas are provided on the top of the combustion row (3) near the ignition device (4).

10. The burner for a heating furnace according to claim 8, characterized in that: A plurality of gas outlet holes (23) are provided on the top of the combustion row (3) at the rear side corresponding to the gas injection hole portion (22) and arranged in a linear manner at intervals, and each gas outlet hole (23) is in the shape of a long strip; or each gas outlet hole (23) includes two circular, elliptical or polygonal gas outlet holes (23), and a long strip gas outlet hole (23) is provided between the two circular, elliptical or polygonal gas outlet holes (23).

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