Modularized low-nitrogen combustor

Abstract

The utility model provides a modularized low-nitrogen combustor, and relates to the technical field of combustors. The modular low-nitrogen combustor comprises a modular combustion device, the module combustion device comprises a gas pipe, a first flow dividing head, a flame stabilizing device, a second flow dividing head, an ignition needle and a sleeve. The gas pipe is arranged in the sleeve; the first flow dividing head is installed at the gas conveying end of the gas pipe and located in the sleeve. The second flow dividing head is installed on the first flow dividing head and located outside the sleeve. The flame stabilizing device is arranged between the first shunting head and the second shunting head and in the sleeve; and the ignition needle is mounted on the gas pipe. The modularized low-nitrogen burner solves the technical problems that in order to enable gas to be fully burnt, an outer circulation system needs to be additionally arranged on a burner in the market, and the structure is complex.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a modular low-nitrogen burner. Background Art

[0002] A burner is a device that sprays fuel and air in a certain way for mixed combustion.

[0003] The burners on the market include gas pipelines, burner heads, sleeves, exhaust pipelines and external circulation systems. In actual applications, because the air and gas cannot be fully mixed during combustion, the combustion efficiency is low and waste gas (incompletely burned gas) will be generated. The waste gas needs to enter the external circulation system through the exhaust pipe. After the waste gas is mixed with the gas, secondary combustion is carried out to make the waste gas after combustion meet the national emission standards. For example, the patent application: CN 213362458 U A low-nitrogen burner external circulation pipeline system and low-nitrogen burner. Therefore, in order to fully burn the gas, the burners on the market also need to add an external circulation system, and the structure is relatively complicated.

[0004] The inventors have found at least the following problems in the process of implementing this embodiment:

[0005] In order to ensure the complete combustion of gas, the burners on the market also need to add an external circulation system, and the structure is relatively complicated. Utility Model Content

[0006] The utility model aims to provide a modular low-nitrogen burner, which solves the technical problem that burners on the market need to add an external circulation system in order to fully burn the gas, and the structure is relatively complicated.

[0007] Utility model solution:

[0008] The utility model provides a modular low-nitrogen burner, comprising a modular combustion device; the modular combustion device comprises a gas pipe, a first diverter head, a flame stabilizing device, a second diverter head, an ignition needle and a sleeve; the gas pipe is arranged in the sleeve; the first diverter head is installed at the gas transmission end of the gas pipe, and it is located in the sleeve; the second diverter head is installed on the first diverter head, and it is located outside the sleeve; the flame stabilizing device is arranged between the first diverter head and the second diverter head; the ignition needle is installed on the gas pipe.

[0009] Furthermore, a necking is provided at the end of the sleeve.

[0010] Furthermore, the gas pipe is provided with a limiting member, and the limiting member abuts against the sleeve.

[0011] Furthermore, the gas pipe is provided with an ignition needle bracket.

[0012] Furthermore, the flame stabilizing device is provided with an ignition needle mounting hole.

[0013] Furthermore, it also includes a wind tube assembly; the wind tube assembly includes a mounting flange, a wind tube and a wind tube flange; one end of the wind tube is connected to the wind tube flange, and the other end is connected to the mounting flange; the wind tube flange is provided with at least one mounting hole for mounting the modular combustion device.

[0014] Furthermore, a detachable sleeve is provided in the air duct; a sealing plate is detachably installed on one end of the detachable sleeve, and the other end is used for detachable connection with the air inlet pipe; the detachable sleeve is provided with at least one gas pipe installation hole for connection with the gas pipe.

[0015] Beneficial effects:

[0016] The utility model provides a modular low-nitrogen burner. When in use, high-speed flowing air passes through a flame stabilizing device to rotate the airflow, so that the air and the gas are evenly mixed. The gas is released through a first diverter head, and an ignition needle ignites the gas, so that the gas burns in the sleeve. The burning flame ignites the gas released by the second diverter head to burn again, so that the burner performs multi-stage combustion to reduce the generation rate of exhaust gas, and the exhaust gas emission can meet the national emission standards. Compared with the prior art, the modular low-nitrogen burner does not need to add an external circulation device, and the structure is relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a modular low-nitrogen burner provided in this embodiment;

[0019] Figure 2 A schematic diagram of the structure of the modular low-nitrogen burner part provided for this embodiment;

[0020] Figure 3 A schematic structural diagram of the air cylinder assembly and the detachable sleeve provided in this embodiment.

[0021] Icons: 100-gas pipe; 110-limiting piece; 120-ignition needle bracket; 200-first diverter; 300-flame stabilizing device; 310-ignition needle mounting hole; 400-second diverter; 500-ignition needle; 600-sleeve; 610-recessed end; 700-air duct assembly; 710-air duct flange; 720-air duct; 730-mounting flange; 740-mounting hole; 800-detachable sleeve; 810-sealing plate; 820-gas pipe mounting hole; 900-ignition needle. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does 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 cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] In addition, the terms "horizontal" and "vertical" do not mean that the components must be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0029] This embodiment provides a modular low nitrogen burner, please refer to Figure 1-3 As shown, it includes a modular combustion device; the modular combustion device includes a gas pipe 100, a first diverter head 200, a flame stabilizing device 300, a second diverter head 400, an ignition needle 900 and a sleeve 600; the gas pipe 100 is arranged in the sleeve 600; the first diverter head 200 is installed at the gas transmission end of the gas pipe 100, and it is located in the sleeve 600; the second diverter head 400 is installed in the first diverter head 200, and it is located outside the sleeve 600; the flame stabilizing device 300 is arranged between the first diverter head 200 and the second diverter head 400, in the sleeve 600; the ignition needle 900 is installed in the gas pipe 100.

[0030] Specifically, the gas pipe 100 plays the role of conveying gas, the first diverter 200 plays the role of releasing the gas from the gas pipe 100 to the surroundings, the flame stabilizing device 300 plays the role of stabilizing the flame and fully mixing the fuel and air, the second diverter 400 is used to release the gas through the gas pipe 100 and the first diverter 200, and the sleeve 600 plays the role of conveying the air in a certain direction. When in use, the high-speed flowing air passes through the flame stabilizing device 300 to form an oxygen-rich zone, so that the air and fuel are fully mixed, the gas is released through the first diverter 200, the ignition needle 900 ignites the gas, and the gas is burned in the sleeve 600. The burning flame ignites the gas released by the second diverter 400 to burn again, so that the burner performs multi-stage combustion to reduce the generation rate of exhaust gas, and the exhaust gas emission can meet the national emission standards. The modular combustion device can be standardized, and the length of the sleeve 600 and the gas pipe 100 can be determined according to the working conditions.

[0031] In this embodiment, a constriction 610 is provided at the end of the sleeve 600 .

[0032] Specifically, the constricted opening 610 at the end of the sleeve 600 gathers the combustion gas and high-velocity wind in the sleeve 600, so that the ignited flame forms a certain shape.

[0033] In this embodiment, the gas pipe 100 is provided with a stopper 110 , and the stopper 110 abuts against the sleeve 600 .

[0034] Specifically, the stopper 110 abuts against the sleeve 600 , so that the gas pipe 100 can be stably installed inside the sleeve 600 .

[0035] In this embodiment, the gas pipe 100 is provided with an ignition needle bracket 120 .

[0036] Specifically, the ignition needle bracket 120 serves to limit the ignition needle 900 , so that the ignition needle 900 can be stably installed on the gas pipe 100 .

[0037] In this embodiment, the flame stabilizing device 300 is provided with an ignition needle mounting hole 310 .

[0038] Specifically, the mounting hole 740 of the flame stabilizing device 300 serves to limit the ignition needle 900 and facilitates the ignition portion of the ignition needle 900 to pass through the flame stabilizing device 300 and reach a suitable position.

[0039] In this embodiment, a wind duct assembly 700 is also included; the wind duct assembly 700 includes a mounting flange 730, a wind duct 720 and a wind duct flange 710; one end of the wind duct 720 is connected to the wind duct flange 710, and the other end thereof is connected to the mounting flange 730; the wind duct flange 710 is provided with at least one mounting hole 740 for mounting the modular combustion device.

[0040] Specifically, the mounting flange 730 is used to connect with the air supply device, and the duct flange 710 can be provided with the number of mounting holes 740 according to the user's demand for the burner power, so as to simultaneously install a plurality of modular combustion devices; compared with the conventional situation where only one burner is used for operation, the burner will stop working after the key component is damaged; if multiple burners are provided, the machine can keep running even if one of them breaks down. Compared with burners of the same power, the maintenance and production costs of replacing a small modular combustion device are lower.

[0041] In this embodiment, a removable sleeve 800 is provided in the air duct 720; a sealing plate 810 is detachably installed on one end of the removable sleeve 800, and the other end thereof is used for detachable connection with the air intake pipe; the removable sleeve 800 is provided with at least one gas pipe installation hole 820 for connecting with the gas pipe 100.

[0042] Specifically, the provision of the detachable sleeve 800 and the sealing plate 810 enables the gas pipe 100, the detachable sleeve 800, the air intake pipe and the sealing plate 810 to form an assembly structure, which is easier to install and to perform after-sales maintenance and replacement than the traditional welding connection method.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A modular low nitrogen burner, It is characterized in that including a modular combustion device; The modular combustion device comprises a gas pipe (100), a first flow divider (200), a flame stabilizing device (300), a second flow divider (400), an ignition needle (900) and a sleeve (600); The gas pipe (100) is arranged in the sleeve (600); The first flow divider (200) is installed at the gas transmission end of the gas pipe (100), and is located inside the sleeve (600); The second flow splitter (400) is installed on the first flow splitter (200) and is located outside the sleeve (600); The flame stabilizing device (300) is arranged between the first flow splitter (200) and the second flow splitter (400); The ignition needle (900) is installed on the gas pipe (100).

2. A modular low nitrogen burner according to claim 1, It is characterized in that The end of the sleeve (600) is provided with a constriction (610).

3. A modular low nitrogen burner according to claim 1, It is characterized in that The gas pipe (100) is provided with a limiting member (110), and the limiting member (110) abuts against the sleeve (600).

4. A modular low nitrogen burner according to claim 3, It is characterized in that The gas pipe (100) is provided with an ignition needle bracket (120).

5. A modular low nitrogen burner according to claim 4, It is characterized in that The flame stabilizing device (300) is provided with an ignition needle mounting hole (310).

6. A modular low nitrogen burner according to any one of claims 1 to 5, It is characterized in that Also included is a wind tube assembly (700); The wind tube assembly (700) comprises a mounting flange (730), a wind tube (720) and a wind tube flange (710); One end of the wind tube (720) is connected to the wind tube flange (710), and the other end is connected to the mounting flange (730); The wind tube flange (710) is provided with at least one mounting hole (740) for mounting the modular combustion device.

7. A modular low nitrogen burner according to claim 6, It is characterized in that A detachable sleeve (800) is provided in the wind tube (720); A sealing plate (810) is detachably mounted on one end of the detachable sleeve (800), and the other end is used for detachably connecting to the air intake pipe; The detachable sleeve (800) is provided with at least one gas pipe installation hole (820) for connecting with the gas pipe (100).

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