A dual cycle low-nitrogen burner

Abstract

The utility model relates to low nitrogen combustor technical field, and disclose a kind of double circulation low nitrogen combustor.The kind of double circulation low nitrogen combustor, comprising: combustor body, the front of combustor body is connected with fuel full combustion mechanism, the right side of combustor body is connected with gas delivery mechanism, the fuel full combustion mechanism includes: the combustion head connected in the front of combustor body, the rear of combustion head is connected with connecting ring, and the outside ring of connecting ring is equipped with fixing device.The utility model is provided with gas valve group in the right side of combustor body, and the left side of gas valve group is connected with gas pipeline, gas valve group and combustor body are connected using the setting of gas pipeline, and the middle of gas pipeline is provided with valve, and the fuel discharge speed inside gas pipeline can be regulated and controlled by valve, so as to control the discharge amount of fuel, make fuel be fully reacted, let equipment rationalization control, also reduce the probability of fuel secondary combustion simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of low-NOx burner technology, specifically a dual-cycle low-NOx burner. Background Technology

[0002] The main function of low-NOx burners is to reduce the emission of nitrogen oxides, i.e., NOx, during fuel combustion. By adopting low-NOx combustion technology, low-NOx burners can significantly reduce the generation of nitrogen oxides during combustion, thereby reducing environmental pollution and protecting the environment and human health. At the same time, low-NOx burners can adapt to a variety of fuels, such as coal, oil, and gas, and are widely used in industrial and commercial fields. Therefore, a dual-cycle low-NOx burner is proposed.

[0003] The existing Chinese utility model patent with publication number CN221483602U discloses a dual-cycle low-NOx burner, belonging to the technical field of low-NOx burners. This technical solution includes an air supply duct and an air outlet cylinder fixedly connected to one side of the air supply duct. An outer connecting cylinder is fixedly connected to the outside of the air outlet cylinder, and an inner cylinder assembly is fixedly connected to the inside of the outer connecting cylinder. The inner cylinder assembly communicates with the air outlet cylinder. A connecting pipe is fixedly connected to the inner side of the outer connecting cylinder, and a second nozzle is fixedly connected to the front side of the connecting pipe. This utility model reduces localized high temperatures and lowers the flame temperature by mixing combustion air with the fuel gas in the outer and inner mixing channels and outside the main fuel supply assembly. The side nozzles are arranged in a ring shape at multiple angles and directions outside the swirl plate, working in conjunction with the swirl blades inside the swirl plate to ensure thorough mixing of the fuel gas and combustion air, improving combustion efficiency, reducing localized high-temperature flame areas, and lowering the formation of thermal nitrogen oxides.

[0004] Based on the search of the aforementioned patents and the findings of existing equipment, since low-NOx burners use low-NOx combustion technology to reduce fuel emissions during use, insufficient contact between the fuel and the low-NOx burner after the fuel enters the burner can lead to the equipment failing to meet emission standards. Furthermore, the proportion of fuel entering the low-NOx burner needs to be properly controlled; otherwise, insufficient contact between gases can also occur. All these problems affect the use of the device. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a dual-cycle low-NOx burner, which has advantages such as sufficient fuel contact and fuel ratio control, thus solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a dual-cycle low-NOx burner, comprising a burner body, a fuel combustion mechanism connected to the front of the burner body, and a gas delivery mechanism connected to the right side of the burner body. The fuel combustion mechanism includes: a burner head connected to the front of the burner body, a connecting ring connected to the rear of the burner head, a fixing device annularly installed on the outside of the connecting ring, and a transmission pipe provided inside the rear of the burner head. A connecting pipe for sufficient gas contact is connected to the front of the transmission pipe, and an intake valve is interconnected on all four sides of the connecting pipe. An exhaust pipe is installed in front of the connecting pipe.

[0009] The gas delivery mechanism includes: a gas valve assembly connected to the right side of the burner body, a gas pipeline for fuel delivery connected to the left side of the gas valve assembly, a valve provided in the middle of the gas pipeline, and an installation ring provided on one side of the gas pipeline, with a device rod connected between the installation rings.

[0010] As a preferred embodiment of this utility model, a servo motor is provided on the left side of the burner body, and a fixed base is fixedly installed at the bottom of the burner body; the servo motor drives the equipment to operate.

[0011] As a preferred embodiment of this utility model, a positioner is fixedly installed on one side of the servo motor, and an adjusting rod is inserted and connected inside the positioner. A connecting rod is connected to the midpoint of the rear of the servo motor, and a drive assembly is connected to the end of the connecting rod; the drive assembly enables the device to operate.

[0012] As a preferred embodiment of this utility model, the connecting pipe is provided in two sets, and the transmission pipe is interconnected with the exhaust pipe through the connecting pipe, and the rear of the transmission pipe is inserted into the interior of the connecting ring; the connecting pipe allows for full contact between the fuel and nitrogen.

[0013] As a preferred embodiment of this utility model, the drive assembly is located on the inside left side of the burner body, and the servo motor is connected to the burner body via a positioner, an adjusting rod, and the positioner for fixed assembly of the device.

[0014] As a preferred embodiment of this utility model, the gas pipeline is inserted through the right side of the burner body, and the gas valve assembly is interconnected with the burner body through the gas pipeline, and one side of the mounting ring is fixedly installed on the right side of the burner body; the gas pipeline transmits fuel in a reasonable manner.

[0015] As a preferred embodiment of this utility model, the burner head is connected to the burner body via a connecting ring, and the burner head is cylindrical; the burner head burns and discharges fuel.

[0016] Compared with the prior art, this utility model provides a dual-cycle low-NOx burner, which has the following characteristics:

[0017] Beneficial effects:

[0018] 1. This utility model has a burner head connected to the front of the burner body, an exhaust pipe inside the burner head, a connecting pipe and a transmission pipe connected to the rear of the exhaust pipe, and an air inlet valve on the four sides of the connecting pipe. The air inlet valve fully contacts the external nitrogen gas and the fuel inside the connecting pipe. The connecting pipe is relatively long, which allows the nitrogen gas and fuel to react fully. Finally, the nitrogen gas is discharged through the exhaust pipe, which allows the burner head to fully combust the fuel, thereby reducing the emission of nitrogen oxides and thus reducing environmental pollution.

[0019] 2. This utility model has a gas valve assembly on the right side of the burner body and a gas pipeline connected to the left side of the gas valve assembly. The gas pipeline connects the gas valve assembly and the burner body, and a valve is installed in the middle of the gas pipeline. The valve can regulate the fuel discharge speed inside the gas pipeline, thereby controlling the amount of fuel discharged, so that the fuel is fully reacted, allowing for rational control of the equipment, and also reducing the probability of secondary combustion of fuel. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the combustion head assembly of this utility model;

[0022] Figure 3 This is a schematic diagram of the servo motor assembly of this utility model.

[0023] Figure 4 This is a schematic diagram of the gas valve assembly of this utility model.

[0024] The components are: 1. Burner body; 2. Servo motor; 21. Positioner; 22. Adjusting rod; 23. Connecting rod; 24. Drive assembly; 3. Gas valve group; 31. Gas pipeline; 32. Valve; 33. Mounting ring; 34. Equipment rod; 4. Fixed base; 5. Burner head; 51. Connecting ring; 52. Fixing device; 53. Transmission pipeline; 54. Connecting pipeline; 55. Inlet valve; 56. Exhaust pipe. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figure 1 — Figure 4 In this embodiment, a dual-cycle low-NOx burner includes a burner body 1. A fuel combustion mechanism is connected to the front of the burner body 1, a gas delivery mechanism is connected to the right side of the burner body 1, and a servo motor 2 is arranged on the left side of the burner body 1. A positioner 21 is fixedly installed on one side of the servo motor 2, and an adjusting rod 22 is inserted through the inside of the positioner 21. A connecting rod 23 is connected to the midpoint of the rear of the servo motor 2, and a drive assembly 24 is connected to the end of the connecting rod 23. The drive assembly 24 is located on the left side inside the burner body 1, and the servo motor 2 is movably connected to the burner body 1 through the positioner 21, the adjusting rod 22, and the positioner 21.

[0029] Specifically, a servo motor 2 is provided on the left side of the burner body 1. The servo motor 2 is connected to the drive assembly 24 via a connecting rod 23. The drive assembly 24 causes the burner body 1 to run. The servo motor 2 is connected to the adjusting rod 22 via a positioner 21. The positioner 21 is used to fix the servo motor 2, so that the servo motor 2 and the burner body 1 are connected as one unit.

[0030] The gas delivery mechanism includes: a gas valve assembly 3 connected to the right side of the burner body 1; a gas pipeline 31 connected to the left side of the gas valve assembly 3; a valve 32 installed in the middle of the gas pipeline 31; an installation ring 33 installed on one side of the gas pipeline 31; and a device rod 34 connected between the installation rings 33; the gas pipeline 31 passes through the right side of the burner body 1; the gas valve assembly 3 is interconnected with the burner body 1 through the gas pipeline 31; and one side of the installation ring 33 is fixedly installed on the right side of the burner body 1.

[0031] Specifically, a gas pipeline 31 is connected to the right side of the burner body 1. The gas pipeline 31 supplies fuel through the gas valve assembly 3 on the right side. A valve 32 is installed in the middle of the gas pipeline 31. The valve 32 can control the transmission speed and proportion of fuel inside the gas pipeline 31, so that the fuel and nitrogen react properly. An installation ring 33 is installed on the outside of the gas pipeline 31. An equipment rod 34 is connected between the installation rings 33. The adjustable setting of the equipment rod 34 can be used to disassemble and separate the gas valve assembly 3 and the burner body 1, so that the equipment can process different gases.

[0032] A fixed base 4 is fixedly installed at the bottom of the burner body 1. The fuel combustion mechanism includes: a burner head 5 connected to the front of the burner body 1, a connecting ring 51 connected to the rear of the burner head 5, a fixing device 52 installed on the outer ring of the connecting ring 51, a transmission pipe 53 arranged inside the rear of the burner head 5, a connecting pipe 54 connected to the front of the transmission pipe 53, an intake valve 55 interconnected on all four sides of the connecting pipe 54, and an exhaust pipe 56 installed in front of the connecting pipe 54; two sets of connecting pipes 54 are provided, and the transmission pipe 53 is interconnected with the exhaust pipe 56 through the connecting pipe 54, and the rear of the transmission pipe 53 is inserted into the interior of the connecting ring 51; the burner head 5 is connected to the burner body 1 through the connecting ring 51, and the burner head 5 is cylindrical.

[0033] Specifically, a burner head 5 is connected to the front of the burner body 1. An exhaust pipe 56 is installed inside the burner head 5. The exhaust pipe 56 is connected to a connecting pipe 54 and a transmission pipe 53. The transmission pipe 53 transmits fuel. An air inlet valve 55 is installed on the four sides of the outside of the connecting pipe 54. The air inlet valve 55 introduces nitrogen into the inside of the equipment, so that the nitrogen and fuel can fully contact each other. In addition, the connecting pipe 54 is relatively long, which allows the gas and fuel to fully react, thereby discharging the gas and ensuring that the gas emissions meet the standards.

[0034] In use, the burner body 1 is connected to the gas valve group 3 via the gas pipeline 31. The gas valve group 3 is used to transfer fuel. A valve 32 is installed outside the gas pipeline 31. The valve 32 can control the transfer speed and proportion of fuel inside the gas pipeline 31, which can prevent the fuel from reacting too much and not reacting in time or fully. After the fuel enters the burner body 1, a servo motor 2 is installed on the left side of the burner body 1. The servo motor 2 is connected to the drive assembly 24 via the connecting rod 23. The drive assembly 24 drives the burner body 1 to run. A transmission pipe 53 is inserted through the front of the burner body 1. The transmission pipe 53 is connected to the exhaust pipe 56 via the connecting pipe 54. An air intake valve 55 is installed on all four sides of the connecting pipe 54. The air intake valve 55 introduces nitrogen into the equipment, so that the nitrogen and fuel can fully contact each other. In addition, the connecting pipe 54 is relatively long, which allows the gas and fuel to react fully. Finally, the gas is discharged through the burner head 5, thereby reducing the occurrence of gas emission pollution.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-cycle low-NOx burner, comprising a burner body (1), wherein a fuel combustion mechanism is connected to the front of the burner body (1), and a gas delivery mechanism is connected to the right side of the burner body (1), characterized in that, The fuel combustion mechanism includes: a combustion head (5) connected to the front of the burner body (1), a connecting ring (51) connected to the rear of the combustion head (5), and a fixing device (52) installed on the outer side of the connecting ring (51), and a transmission pipe (53) provided inside the rear of the combustion head (5), a connecting pipe (54) connected to the front of the transmission pipe (53), and an intake valve (55) provided on the four sides of the connecting pipe (54), and an exhaust pipe (56) installed in front of the connecting pipe (54); The gas delivery mechanism includes: a gas valve group (3) connected to the right side of the burner body (1), a gas pipeline (31) connected to the left side of the gas valve group (3), a valve (32) provided in the middle of the gas pipeline (31), and an installation ring (33) provided on one side of the gas pipeline (31), and a device rod (34) connected between the installation rings (33).

2. The dual-cycle low-NOx burner according to claim 1, characterized in that, A servo motor (2) is provided on the left side of the burner body (1), and a fixed base (4) is fixedly installed at the bottom of the burner body (1).

3. A dual-cycle low-NOx burner according to claim 2, characterized in that, A positioner (21) is fixedly installed on one side of the servo motor (2), and an adjusting rod (22) is inserted inside the positioner (21). A connecting rod (23) is connected to the midpoint of the rear of the servo motor (2), and a drive assembly (24) is connected to the end of the connecting rod (23).

4. A dual-cycle low-NOx burner according to claim 1, characterized in that, The connecting pipe (54) is provided in two sets, and the transmission pipe (53) is interconnected with the exhaust pipe (56) through the connecting pipe (54), and the rear of the transmission pipe (53) is inserted into the interior of the connecting ring (51).

5. A dual-cycle low-NOx burner according to claim 3, characterized in that, The drive assembly (24) is located on the inside left side of the burner body (1), and the servo motor (2) is connected to the burner body (1) via the positioner (21), the adjusting rod (22) and the servo motor (2).

6. A dual-cycle low-NOx burner according to claim 1, characterized in that, The gas pipeline (31) is inserted through the right side of the burner body (1), and the gas valve assembly (3) is interconnected with the burner body (1) through the gas pipeline (31), and one side of the mounting ring (33) is fixedly installed on the right side of the burner body (1).

7. A dual-cycle low-NOx burner according to claim 1, characterized in that, The burner head (5) is connected to the burner body (1) through a connecting ring (51), and the burner head (5) is cylindrical.

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