Industrial natural gas burner with low nitrogen oxide emission

Abstract

The utility model discloses an industrial natural gas burner with low nitrogen oxide emission, which comprises a burner main body, the front side of the burner main body is fixedly connected with a driving mechanism and an ignition mechanism, the back side of the burner main body is fixedly connected with an air inlet pipe, and the inner side of the air inlet pipe is fixedly connected with an air inlet net. Fixing assemblies are fixedly connected to the front face and the back face of the burner body correspondingly, a mixing tank is fixedly connected to the top of the burner body, a mixing motor is fixedly connected to the top of the mixing tank, a stirring shaft is fixedly connected to the driving end of the mixing motor, stirring blades are fixedly connected to the outer side of the stirring shaft, and a burning pipe is fixedly connected to one side of the burner body. A combustion net is fixedly connected into the combustion pipe, through the arrangement of the mixing tank, the mixing motor, the stirring shaft, the stirring blades and the heating pipe, fuel gas can be fully mixed with a combustion improver before combustion, meanwhile, the fuel gas can be fully combusted after being preheated in advance before combustion, and therefore emission of nitric oxide is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to an industrial natural gas burner with low nitrogen oxide emission. Background Art

[0002] Low NOx combustion technology is a variety of technologies that improve combustion equipment or control combustion conditions to reduce the NOx concentration in combustion exhaust gas. The main factors affecting the generation of NOx during the combustion process are the combustion temperature, the residence time of the flue gas in the high temperature zone, the concentration of various components in the flue gas and the degree of mixing. Therefore, changing the air-fuel ratio, the temperature of the combustion air, the degree of cooling in the combustion zone and the shape design of the burner can reduce the generation of nitrogen oxides during the combustion process.

[0003] The patent document with the prior art publication number CN111578275A provides a burner with low nitrogen oxide emission, which relates to the field of burner technology. The technical solution includes a burner body, the burner body includes an air supply device, one side of the air supply device is connected to an air inlet hood, the lower end of the air inlet hood has an air inlet, the side away from the air supply device is connected to a smoke pipe, the smoke pipe is connected to an electric butterfly valve, and also includes a treatment device, the treatment device includes a vertical treatment cylinder with an opening at the upper end, an elbow connected between the treatment cylinder and the electric butterfly valve, and a smoke inlet pipe connected to the lower end of the treatment cylinder, the treatment cylinder is filled with a treatment liquid, the smoke inlet pipe extends into the treatment cylinder and is connected to an aerator; the treatment liquid is water or an alkaline aqueous solution. After the flue gas refluxes, it is treated by the treatment device so that the flue gas entering the air supply device is mainly nitric oxide, which has a good effect in suppressing the generation of nitrogen oxides during subsequent combustion.

[0004] However, during use, existing industrial natural gas burners with low nitrogen oxide emissions usually directly discharge gas and oxygen into the burner for combustion. However, this method has a poor mixing effect of gas and oxygen, and the gas and oxygen are not mixed thoroughly. At the same time, the temperature of the gas and oxygen needs to be preheated before they can burn during the combustion process, resulting in incomplete combustion of the burner, thereby failing to reduce nitrogen oxide emissions. For this reason, we propose an industrial natural gas burner with low nitrogen oxide emissions. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides an industrial natural gas burner with low nitrogen oxide emissions to solve the problems raised in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: an industrial natural gas burner with low nitrogen oxide emissions, comprising a burner body, a driving mechanism and an ignition mechanism fixedly connected to the front of the burner body, an air inlet pipe fixedly connected to the back of the burner body, an air inlet net fixedly connected to the inner side of the air inlet pipe, a fixing assembly fixedly connected to the front and back of the burner body, a mixing tank fixedly connected to the top of the mixing tank, a mixing motor fixedly connected to the top of the mixing tank, a stirring shaft fixedly connected to the driving end of the mixing motor, a stirring blade fixedly connected to the outer side of the stirring shaft, a combustion tube fixedly connected to one side of the burner body, a combustion net fixedly connected to the inside of the combustion tube, a preheating tube fixedly connected to the top of the combustion tube, a heating tube fixedly connected to the inside of the preheating tube, and one end of the preheating tube fixedly connected to the mixing tank.

[0009] Further preferably, the driving mechanism includes a driving motor and a wind wheel, the driving motor is fixedly connected to the front side of the burner body, the driving end of the driving motor is fixedly connected to the wind wheel, and the wind wheel is located inside the burner body.

[0010] Further preferably, the fixing assembly includes a mounting frame and a mounting opening, the mounting frame is fixedly connected to the front and back sides of the burner body, and the mounting openings are provided at the four corners of the top of the mounting frame.

[0011] Further preferably, an oxygen pipe and a gas pipe are fixedly connected to one side of the mixing tank, one end of the oxygen pipe is fixedly connected to a regulating valve, and one end of the gas pipe is fixedly connected to a gas valve.

[0012] Further preferably, one end of the combustion tube is fixedly connected to a nozzle, the other end of the combustion tube is fixedly connected to a mounting flange, and the combustion tube is fixedly connected to the burner body via the mounting flange.

[0013] Further preferably, the ignition mechanism includes an igniter, an ignition tube and an ignition valve, the igniter is fixedly connected to the front side of the burner body, the bottom of the igniter is fixedly connected to the ignition tube, one end of the ignition tube is fixedly connected to the ignition valve, and the ignition valve is fixedly connected to the combustion tube.

[0014] (III) Beneficial effects

[0015] The utility model provides an industrial natural gas burner with low nitrogen oxide emissions, which has the following

[0016] Beneficial effects:

[0017] (1) This type of industrial natural gas burner with low nitrogen oxide emissions has a mixing tank, a mixing motor, a stirring shaft, stirring blades and a heating tube. When using the burner, the worker installs the oxygen and fuel pipes on the regulating valve and gas valve of the oxygen pipe and the fuel gas pipe respectively, and then opens the gas valve to allow the fuel gas to enter the mixing tank through the gas pipe. Then, according to the fuel gas volume and the combustion-supporting ratio, the regulating valve is opened to allow oxygen to enter the mixing tank. At the same time, the mixing motor drives the stirring blades to rotate through the stirring shaft. At this time, the oxygen and fuel gas will be mixed, and the mixed gas will enter the preheating tube. At the same time, The heating tube will emit heat, and the heating tube will preheat the gas. At this time, the gas will enter the combustion tube. At this time, the igniter starts to ignite the gas through the ignition valve on the ignition tube, and the gas will burn. Then the driving motor drives the wind wheel to rotate and inhale air through the air inlet pipe to generate wind force. The wind force acts on the combustion tube to blow the flame, so that the natural gas in the burner can be sprayed out. In this way, the gas can be fully mixed with the combustion aid before combustion. At the same time, the gas can be preheated in advance before combustion, so that the gas can be fully burned, thereby reducing nitrogen oxide emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the hybrid motor of the utility model;

[0020] Figure 3 It is a partial structural back view of the burner body of the utility model;

[0021] Figure 4 It is a partial structural schematic diagram of the combustion tube of the utility model.

[0022] In the figure: 1. burner body; 2. mounting frame; 3. mounting port; 4. driving motor; 401. wind wheel; 5. igniter; 6. ignition tube; 7. ignition valve; 8. mixing tank; 9. mixing motor; 901. stirring shaft; 902. stirring blade; 10. oxygen tube; 11. regulating valve; 12. gas tube; 13. gas valve; 14. combustion tube; 1401. combustion net; 1402. mounting flange; 15. preheating tube; 1501. heating tube; 16. nozzle; 17. air inlet pipe; 18. air inlet net. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: an industrial natural gas burner with low nitrogen oxide emissions, comprising a burner body 1, a driving mechanism and an ignition mechanism fixedly connected to the front of the burner body 1, an air inlet pipe 17 fixedly connected to the back of the burner body 1, an air inlet net 18 fixedly connected to the inner side of the air inlet pipe 17, a fixing assembly fixedly connected to the front and back of the burner body 1, a mixing tank 8 fixedly connected to the top of the burner body 1, a mixing motor 9 fixedly connected to the top of the mixing tank 8, a stirring shaft 901 fixedly connected to the driving end of the mixing motor 9, a stirring blade 902 fixedly connected to the outer side of the stirring shaft 901, a combustion tube 14 fixedly connected to one side of the burner body 1, a combustion net 1401 fixedly connected to the inside of the combustion tube 14, a preheating tube 15 fixedly connected to the top of the combustion tube 14, a heating tube 1501 fixedly connected to the inside of the preheating tube 15, and one end of the preheating tube 15 fixedly connected to the mixing tank 8.

[0025] In the present embodiment, specifically, the driving mechanism includes a driving motor 4 and a wind wheel 401. The driving motor 4 is fixedly connected to the front side of the burner body 1. The driving end of the driving motor 4 is fixedly connected to the wind wheel 401. The wind wheel 401 is located inside the burner body 1. The driving motor 4 drives the wind wheel 401 to operate and inhales air through the air inlet pipe 17 to generate wind force. The wind force acts on the combustion tube 14 to blow the flame, so that the natural gas in the burner can be ejected.

[0026] In this embodiment, specifically, the fixing assembly includes a mounting frame 2 and a mounting opening 3. The mounting frame 2 is fixedly connected to the front and back sides of the burner body 1. The mounting openings 3 are provided at the four corners of the top of the mounting frame 2. By installing bolts in the mounting openings 3 of the mounting frame 2, the mounting frame 2 can be firmly fixed.

[0027] In the present embodiment, specifically, one side of the mixing tank 8 is fixedly connected with an oxygen pipe 10 and a gas pipe 12, one end of the oxygen pipe 10 is fixedly connected with a regulating valve 11, and one end of the gas pipe 12 is fixedly connected with a gas valve 13. The regulating valve 11 and the gas valve 13 can discharge the gas and oxygen according to a ratio, so that the gas can be fully burned through the oxygen.

[0028] In this embodiment, specifically, one end of the combustion tube 14 is fixedly connected to the nozzle 16, and the other end of the combustion tube 14 is fixedly connected to the mounting flange 1402. The combustion tube 14 is fixedly connected to the burner body 1 through the mounting flange 1402, so that the combustion tube 14 can be firmly fixedly connected to the burner body 1 through the mounting flange 1402.

[0029] In the present embodiment, specifically, the ignition mechanism includes an igniter 5, an ignition tube 6 and an ignition valve 7. The igniter 5 is fixedly connected to the front side of the burner body 1, the bottom of the igniter 5 is fixedly connected to the ignition tube 6, one end of the ignition tube 6 is fixedly connected to the ignition valve 7, and the ignition valve 7 is fixedly connected to the combustion tube 14. When the igniter 5 is started, the gas is ignited through the ignition valve 7 on the ignition tube 6.

[0030] Working principle: After the utility model is installed, first check the installation and safety protection of the utility model. When using the burner, the staff installs the oxygen and fuel pipelines on the regulating valve 11 and the gas valve 13 of the oxygen pipe 10 and the gas pipe 12 respectively, and then opens the gas valve 13 to allow the gas to enter the mixing tank 8 through the gas pipe 12. Then, according to the gas volume and the combustion-supporting ratio, the regulating valve 11 is opened to allow oxygen to enter the mixing tank 8. At the same time, the mixing motor 9 drives the stirring blade 902 to rotate through the stirring shaft 901. At this time, the oxygen and gas will be mixed, and the mixed gas will When the gas enters the preheating tube 15, the heating tube 1501 will emit heat, and the heating tube 1501 will preheat the gas. At this time, the gas will enter the combustion tube 14. At this time, the igniter 5 is started to ignite the gas through the ignition valve 7 on the ignition tube 6, and the gas will burn. Then the driving motor 4 drives the wind wheel 401 to operate and inhale air through the air inlet pipe 17 to generate wind force. The wind force acts on the combustion tube 14 to blow the flame, so that the natural gas in the burner can be ejected. In this way, the use process of the utility model is completed. The utility model has a simple structure and is safe and convenient to use.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An industrial natural gas burner with low nitrogen oxide emissions, comprising a burner body (1), characterized in that: The front of the burner body (1) is fixedly connected to a driving mechanism and an ignition mechanism, the back of the burner body (1) is fixedly connected to an air inlet pipe (17), the inner side of the air inlet pipe (17) is fixedly connected to an air inlet net (18), the front and back of the burner body (1) are fixedly connected to fixing components, the top of the burner body (1) is fixedly connected to a mixing tank (8), the top of the mixing tank (8) is fixedly connected to a mixing motor (9), and the driving end of the mixing motor (9) is fixedly connected to the mixing tank (8). A stirring shaft (901) is fixedly connected to the outside of the stirring shaft (901) with a stirring blade (902); a combustion tube (14) is fixedly connected to one side of the burner body (1); a combustion net (1401) is fixedly connected to the inside of the combustion tube (14); a preheating tube (15) is fixedly connected to the top of the combustion tube (14); a heating tube (1501) is fixedly connected to the inside of the preheating tube (15); and one end of the preheating tube (15) is fixedly connected to the mixing tank (8).

2. The low nitrogen oxide emission industrial natural gas burner according to claim 1, characterized in that: The driving mechanism comprises a driving motor (4) and a wind wheel (401); the driving motor (4) is fixedly connected to the front side of the burner body (1); the driving end of the driving motor (4) is fixedly connected to the wind wheel (401); and the wind wheel (401) is located inside the burner body (1).

3. The low nitrogen oxide emission industrial natural gas burner according to claim 1, characterized in that: The fixing assembly comprises a mounting frame (2) and a mounting opening (3); the mounting frame (2) is fixedly connected to the front and back sides of the burner body (1); and the mounting openings (3) are provided at the four corners of the top of the mounting frame (2).

4. The industrial natural gas burner with low nitrogen oxide emissions according to claim 1, characterized in that: An oxygen pipe (10) and a gas pipe (12) are fixedly connected to one side of the mixing tank (8). One end of the oxygen pipe (10) is fixedly connected to a regulating valve (11), and one end of the gas pipe (12) is fixedly connected to a gas valve (13).

5. The industrial natural gas burner with low nitrogen oxide emissions according to claim 1, characterized in that: One end of the combustion tube (14) is fixedly connected to a nozzle (16), and the other end of the combustion tube (14) is fixedly connected to a mounting flange (1402); the combustion tube (14) is fixedly connected to the burner body (1) via the mounting flange (1402).

6. The low nitrogen oxide emission industrial natural gas burner according to claim 1, characterized in that: The ignition mechanism comprises an igniter (5), an ignition tube (6) and an ignition valve (7); the igniter (5) is fixedly connected to the front side of the burner body (1); the bottom of the igniter (5) is fixedly connected to the ignition tube (6); one end of the ignition tube (6) is fixedly connected to the ignition valve (7); and the ignition valve (7) is fixedly connected to the combustion tube (14).

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