Air mixing device of ultra-low nitrogen combustor

Abstract

The utility model discloses an air mixing device of an ultra-low nitrogen combustor, which comprises a base, an ultra-low nitrogen combustor body, a gas mixing chamber, a gas inlet, a combustion chamber, a gas exhaust flue and a positive and negative gas mixing device, the ultra-low nitrogen combustor body is arranged on the base, the gas mixing chamber is arranged above the ultra-low nitrogen combustor body, and the gas inlet is arranged on the combustion chamber. The gas inlet is formed in the side wall of the gas mixing chamber, the combustion chamber is arranged at the upper end of the ultra-low nitrogen combustor body, the exhaust flue is arranged on one side of the combustion chamber, and the forward and reverse gas mixing device is arranged in the gas mixing chamber. The utility model belongs to the technical field of ultra-low nitrogen combustors, and particularly relates to an air mixing device of an ultra-low nitrogen combustor, which can fully fuse fuel and air so as to improve the combustion efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultra-low nitrogen burners, in particular to an air mixing device for an ultra-low nitrogen burner. Background Art

[0002] The commonly used ultra-low nitrogen and air mixing equipment places the two in a space for mixing. This mixing method easily causes uneven mixing of ultra-low nitrogen and air, resulting in incomplete combustion when they are sent to the engine head for combustion. For this reason, improvements are needed. Utility Model Content

[0003] In order to solve the above-mentioned problem, the utility model provides an air mixing device for an ultra-low nitrogen burner which can fully blend fuel and air to improve combustion efficiency.

[0004] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: an air mixing device for an ultra-low nitrogen burner, comprising a base, an ultra-low nitrogen burner body, an air mixing chamber, an air inlet, a combustion chamber, an exhaust flue and a positive and negative mixing device, the ultra-low nitrogen burner body is arranged on the base, the air mixing chamber is arranged above the ultra-low nitrogen burner body, the air inlet is arranged on the side wall of the air mixing chamber, the combustion chamber is arranged at the upper end of the ultra-low nitrogen burner body, the exhaust flue is arranged on one side of the combustion chamber, and the positive and negative mixing devices are arranged in the air mixing chamber; the positive and negative mixing device comprises a motor, a bevel gear 1, a bracket, a limit sleeve 1, a limit sleeve 2, a rotating shaft, a bevel gear 3, a sleeve, a bevel gear 2 and a turbofan, the motor The machine is arranged on the side wall of the mixing chamber, the bevel gear 1 is arranged on the output shaft end of the motor, the bracket is arranged on the inner wall of the mixing chamber, the output shaft of the motor rotates in the bracket, the limit sleeve 1 and the limit sleeve 2 are respectively arranged at the two ends of the bracket, the rotating shaft is rotatably arranged at the lower end of the combustion chamber, the bevel gear 3 is arranged on the rotating shaft and meshingly connected with the bevel gear 1, the sleeve is rotatably arranged in the limit sleeve 2 and sleeved on the rotating shaft, the bevel gear 2 is arranged at the lower end of the sleeve and meshingly connected with the bevel gear 1, the turbofan is provided with two groups and is respectively connected to the sleeve and the rotating shaft, by the bevel gear 1 meshing with the bevel gear 2 and the bevel gear 3, the two groups of turbofans can be rotated in opposite directions, the fuel and air can be fully mixed and the combustion is more complete.

[0005] Preferably, a flow regulating valve is provided on the air inlet, which can adjust the air flow rate entering the air mixing chamber from the air inlet.

[0006] Preferably, the first limiting sleeve can limit the upper and lower positions of the rotating shaft, and the second limiting sleeve can limit the upper and lower positions of the sleeve.

[0007] Preferably, the rotation of the two sets of turbofans can both deliver air toward the combustion chamber.

[0008] Preferably, an inspection door is provided on the gas mixing chamber, and the inspection door is transparent.

[0009] Preferably, the inspection door is provided with a door lock.

[0010] The utility model adopts the above structure to achieve the following beneficial effects:

[0011] 1. The utility model can achieve full mixing of the air in the air inlet and the fuel sprayed from the ultra-low nitrogen burner body by arranging the forward and reverse mixing devices, so that the fuel mixture entering the combustion chamber is fully burned.

[0012] 2. The utility model can adjust the air flow rate entering the mixing chamber from the air inlet by setting a flow regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of an air mixing device for an ultra-low nitrogen burner of the utility model;

[0014] Figure 2 It is a top view of the turbofan;

[0015] Figure 3 for Figure 1 Overall appearance diagram.

[0016] Among them, 1. base, 2. ultra-low nitrogen burner body, 3. mixing chamber, 4. air inlet, 5. combustion chamber, 6. exhaust flue, 7. positive and negative mixing device, 8. motor, 9. bevel gear one, 10. bracket, 11. limit sleeve one, 12. limit sleeve two, 13. sleeve, 14. bevel gear two, 15. rotating shaft, 16. bevel gear three, 17. turbofan, 18. flow control valve, 19. inspection door, 20. door lock. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0019] like Figure 1-3 The utility model discloses an air mixing device for an ultra-low nitrogen burner, comprising a base 1, an ultra-low nitrogen burner body 2, a gas mixing chamber 3, an air inlet 4, a combustion chamber 5, an exhaust flue 6 and a positive and negative gas mixing device 7. The ultra-low nitrogen burner body 2 is arranged on the base 1, the gas mixing chamber 3 is arranged above the ultra-low nitrogen burner body 2, an inspection door 19 is arranged on the gas mixing chamber 3, the inspection door 19 is arranged in a transparent shape, and a door lock 20 is arranged on the inspection door 19. The air inlet 4 is arranged on the side wall of the gas mixing chamber 3, and a flow regulating valve 18 is arranged on the air inlet 4, which can adjust the air flow rate of the air inlet 4 entering the gas mixing chamber 3. The combustion chamber 5 is arranged at the upper end of the ultra-low nitrogen burner body 2, the exhaust flue 6 is arranged on one side of the combustion chamber 5, and the positive and negative gas mixing device 7 is arranged in the gas mixing chamber 3;

[0020] like Figure 1-2 The forward and reverse mixing device 7 includes a motor 8, a bevel gear 1 9, a bracket 10, a limit sleeve 1 11, a limit sleeve 2 12, a rotating shaft 15, a bevel gear 3 16, a sleeve 13, a bevel gear 2 14 and a turbofan 17. The motor 8 is arranged on the side wall of the mixing chamber 3, the bevel gear 1 9 is arranged on the output shaft end of the motor 8, the bracket 10 is arranged on the inner wall of the mixing chamber 3, the output shaft of the motor 8 rotates in the bracket 10, the limit sleeve 1 11 and the limit sleeve 2 12 are respectively arranged at both ends of the bracket 10, the rotating shaft 15 is rotatably arranged at the lower end of the combustion chamber 5, the bevel gear 3 16 is arranged The sleeve 13 is rotatably arranged in the limiting sleeve 2 12 and sleeved on the rotating shaft 15. The bevel gear 2 14 is arranged at the lower end of the sleeve 13 and is meshed with the bevel gear 1 9. The turbofan 17 is provided with two groups and is respectively connected to the sleeve 13 and the rotating shaft 15. The rotation of the two groups of turbofans 17 can both deliver air to the combustion chamber 5. By meshing the bevel gear 19 with the bevel gear 2 14 and the bevel gear 3 16, the two groups of turbofans 17 can rotate in opposite directions, so that the fuel and air can be fully mixed and the combustion is more complete.

[0021] The limiting sleeve 11 can limit the rotation shaft 15 up and down, and the limiting sleeve 2 12 can limit the sleeve 13 up and down.

[0022] During specific use, the motor 8 is turned on, the bevel gear 1 9 meshes with the bevel gear 2 14 and the bevel gear 3 16 to rotate in the opposite direction, the bevel gear 2 14 drives the sleeve 13 to rotate in the limit sleeve 2 12, the sleeve 13 drives the lower turbofan 17 to rotate, the bevel gear 3 16 drives the rotating shaft 15 to rotate in the limit sleeve 1 1, and the rotating shaft 15 rotates in the sleeve 13 at the same time, and the rotating shaft 15 drives the upper turbofan 17 to rotate in the opposite direction, and the air enters the air inlet 4, and the ultra-low nitrogen burner body 2 sprays it into the mixing chamber 3 for combustion. After mixing with the air, it is mixed by two groups of turbofans 17 and enters the combustion chamber 5 for combustion. The mixing and combustion are sufficient, and the combustion flue gas is discharged through the exhaust flue 6. The flow rate of the air inlet 4 entering the mixing chamber 3 can also be adjusted through the flow regulating valve 18. The door lock 20 and the inspection door 19 are opened, and the parts in the mixing chamber 3 can be inspected and maintained.

[0023] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. An air mixing device for an ultra-low nitrogen burner, characterized in that: It includes a base, an ultra-low nitrogen burner body, a gas mixing chamber, an air inlet, a combustion chamber, an exhaust flue and a positive and negative gas mixing device, wherein the ultra-low nitrogen burner body is arranged on the base, the gas mixing chamber is arranged above the ultra-low nitrogen burner body, the air inlet is arranged on the side wall of the gas mixing chamber, the combustion chamber is arranged at the upper end of the ultra-low nitrogen burner body, the exhaust flue is arranged on one side of the combustion chamber, and the positive and negative gas mixing device is arranged in the gas mixing chamber; The forward and reverse mixing device includes a motor, a bevel gear 1, a bracket, a limit sleeve 1, a limit sleeve 2, a rotating shaft, a bevel gear 3, a sleeve, a bevel gear 2 and a turbofan. The motor is arranged on the side wall of the mixing chamber, the bevel gear 1 is arranged on the output shaft end of the motor, the bracket is arranged on the inner wall of the mixing chamber, the output shaft of the motor rotates in the bracket, the limit sleeve 1 and the limit sleeve 2 are respectively arranged at the two ends of the bracket, the rotating shaft is rotatably arranged at the lower end of the combustion chamber, the bevel gear 3 is arranged on the rotating shaft and meshed with the bevel gear 1, the sleeve is rotatably arranged in the limit sleeve 2 and sleeved on the rotating shaft, the bevel gear 2 is arranged at the lower end of the sleeve and meshed with the bevel gear 1, and the turbofan is provided with two groups and is respectively connected to the sleeve and the rotating shaft.

2. The air mixing device of an ultra-low nitrogen burner according to claim 1, characterized in that: A flow regulating valve is arranged on the air inlet.

3. The air mixing device of an ultra-low nitrogen burner according to claim 2, characterized in that: The first limiting sleeve can limit the upper and lower positions of the rotating shaft, and the second limiting sleeve can limit the upper and lower positions of the sleeve.

4. The air mixing device of an ultra-low nitrogen burner according to claim 3 is characterized in that: The rotation of the two sets of turbofans can both deliver air toward the combustion chamber.

5. The air mixing device of an ultra-low nitrogen burner according to claim 4, characterized in that: The gas mixing chamber is provided with an inspection door, and the inspection door is arranged in a transparent shape.

6. The air mixing device of an ultra-low nitrogen burner according to claim 5, characterized in that: The inspection door is provided with a door lock.

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