Complete-combustion low-carbon hot water boiler combustion head

Abstract

The utility model provides a full-combustion low-carbon hot water boiler combustion head which comprises a cylinder body provided with a plurality of fire overflow holes, the outer diameter of the near-fire end, close to an ignition position, of the cylinder body is larger than that of the far-fire end of the cylinder body, so that the cylinder body is conical, a plurality of fire gathering fins are evenly distributed on the inner wall of the far-fire end, and flow guide fins are arranged in the middles of the fire overflow holes. A flow guide hole is formed in the middle of the backflow fin, so that flames can be sprayed out from the fire overflow holes in the two sides of the flow guide fin and the flow guide hole. According to the full-combustion low-carbon hot water boiler combustion head, the length of the barrel is shortened, the outer diameter of the barrel is increased, the fire distribution surface area is kept consistent with that in the prior art, the distance of the far fire end is reduced, and therefore it is guaranteed that fire pressure is sufficient to fill fire overflow holes; and the far fire end with insufficient fire pressure is thinner and narrower, so that the far fire end can be filled with fire more easily.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler burners, in particular to a fully combusting low-carbon hot water boiler burner. Background Art

[0002] When the boiler is working, when the flue gas is burning, if the combustion is insufficient, low-nitrogen combustion will produce nitrogen oxides, increasing the generation of harmful gases. These harmful gases are discharged into the air and have a negative impact on the atmosphere. At the same time, the discharged flue gas has a high temperature, resulting in low thermal efficiency and a large amount of heat energy loss. According to the detection and statistical analysis results of national gas industrial boilers in 2014, boilers with a NOx emission mass concentration less than or equal to 200 mg / m3 only account for 35%.

[0003] The existing burner is a thin and long cylindrical shape, but the flame pressure is limited. When extending to the rear end of the burner, the pressure is insufficient, and the firepower cannot cover the entire burner, making it easier for the combustion to be incomplete, resulting in a high-nitrogen generation situation. Therefore, a fully combusting low-carbon hot water boiler burner is proposed to solve the above problems. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a fully combusting low-carbon hot water boiler burner, which has the advantage of being more easily combusted fully.

[0005] To achieve the above object, the utility model provides the following technical solution: a fully combusting low-carbon hot water boiler burner, including a cylinder body provided with a plurality of fire overflow holes, the outer diameter of the near-fire end of the cylinder body close to the ignition point is greater than the outer diameter of the far-fire end, making the cylinder body conical, a plurality of fire concentrating fins are evenly arranged on the inner wall of the far-fire end, a flow guiding fin is arranged in the middle of each fire overflow hole, and a flow guiding hole is opened in the middle of the flow guiding fin, so that the flame can be ejected from the fire overflow holes on both sides of the flow guiding fin and the flow guiding hole.

[0006] Further, an installation skirt is arranged at the near-fire end of the cylinder body, and a plurality of installation holes are opened on the installation skirt.

[0007] Further, it further includes a flange, and the cylinder body is fixed on the boiler through the flange connecting the installation holes.

[0008] Further, the flow guiding fin is made of a heat-deformable material.

[0009] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0010] The combustion head of this fully - combusted low - carbon hot - water boiler is designed with a conical cylinder body, and the near - fire end is wider. Even if the fire - pressure - sufficient position has a large fire - distribution area, it is still sufficient to fill the near - fire end. The far - fire end with insufficient fire pressure is narrower and is easier to be filled with firepower, avoiding the situation of incomplete combustion caused by insufficient fire pressure at the far end. Brief Description of the Drawings

[0011] Figure 1 It is a schematic diagram of the appearance of the present utility model;

[0012] Figure 2 It is a schematic diagram of the partial structure of the present utility model (top view);

[0013] Figure 3 It is a schematic diagram of the partial structure of the present utility model (front view).

[0014] In the figure: 1. Cylinder body; 11. Far - fire end; 12. Near - fire end; 13. Installation skirt; 2. Fire - concentrating fins; 3. Flow - guiding fins; 31. Flow - guiding holes. Detailed Implementation Manner

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model.

[0016] Existing combustion heads are all provided with several holes on the outside to disperse the internal firepower through the holes. The near - fire end is close to the ignition point with high fire pressure, and the far - fire end is far from the ignition point with low fire pressure, and the firepower often cannot cover completely. Please refer to Figures 1-3 , A combustion head of a fully - combusted low - carbon hot - water boiler in this application includes a cylinder body 1 provided with several overflow holes. The outer diameter of the near - fire end 12 of the cylinder body 1 close to the ignition point is larger than the outer diameter of the far - fire end 11, making the cylinder body 1 conical. A plurality of fire - concentrating fins 2 are evenly distributed on the inner wall of the far - fire end 11. A flow - guiding fin 3 is arranged in the middle of each overflow hole, and a flow - guiding hole 31 is opened in the middle of the reverse - flow fin, so that the flame can be ejected from the overflow holes on both sides of the flow - guiding fin 3 and the flow - guiding hole 31.

[0017] This device shortens the length of the cylinder body 1 and increases its outer diameter, so that the fire - distribution surface area is the same as that of the combustion head in the prior art, reducing the distance of the far - fire end 11, thereby ensuring that the fire pressure is sufficient to fill the overflow holes;

[0018] By setting the cylinder body 1 as conical and the near - fire end 12 wider, even if the fire - distribution area of the near - fire end 12 is large, but the fire pressure at the near - fire end 12 is sufficient, and the firepower is still sufficient to fill the near - fire end 12. The far - fire end 11 with insufficient fire pressure is narrower and is easier to be filled with firepower, avoiding the situation of incomplete combustion caused by insufficient fire pressure at the far end;

[0019] By arranging a fire concentrating fin 2 on the inner wall of the far-fire end 11, heat conduction of the fin can be utilized to increase heat transfer, and the internal space of the far-fire end 11 can be further reduced, so that the firepower is more likely to fill the far-fire end 11, thereby reducing the fire pressure required to fill the far-fire end 11 and ensuring the firepower of the far-fire end 11.

[0020] By arranging a diversion fin 3 at each fire overflow hole and providing a diversion hole 31 on the fin, the fire overflow hole is divided into two parts, and at the same time, the firepower can also be ejected from the diversion hole 31. Further, the diversion fin 3 is made of a material that can be deformed by heat.

[0021] The device is made of a material that can be deformed when the temperature changes and returns to its original shape when the temperature drops. Usually, a rigid material with fine thermal expansion and contraction is used, and the diversion fin 3 is placed in the middle of the fire overflow hole. If the fire overflow hole is blocked by impurities, since the diversion fin 3 itself will undergo fine deformation, that is, the distance between the diversion fin 3 and the fire overflow holes on both sides will change due to temperature change, so that the fine impurities are not likely to be caked and block the fire overflow hole, which can play the role of self-cleaning the blockage.

[0022] Further, an installation skirt 13 is arranged at the near-fire end 12 of the cylinder body 1, and several installation holes are provided on the installation skirt 13. The cylinder body 1 is fixed on the boiler by flange connection through the installation holes.

[0023] The device inserts a loose flange into the installation skirt 13 to fix and install the burner head, enabling the internal system of the boiler to withstand pressure and temperature changes, and at the same time facilitating installation, maintenance and replacement.

[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combustion head for a fully-combusted low-carbon hot water boiler, comprising a cylinder (1) provided with a plurality of overflow holes, characterized in that: The outer diameter of the near-fire end (12) of the cylinder (1) close to the ignition point is larger than the outer diameter of the far-fire end (11), so that the cylinder (1) is conical, and the inner wall of the far-fire end (11) is evenly distributed with a plurality of fire-gathering fins (2), and a guide fin (3) is arranged in the middle of each of the overflow holes, and a guide hole (31) is opened in the middle of the guide fin, so that the flame can be ejected from the overflow holes on both sides of the guide fin (3) and the guide hole (31).

2. A fully-combustion low-carbon hot water boiler burner according to claim 1, characterized in that: The fire-proximal end (12) of the cylinder (1) is provided with a mounting skirt (13), and a plurality of mounting holes are provided on the mounting skirt (13).

3. A fully-combustion low-carbon hot water boiler burner head according to claim 2, characterized in that: It also comprises a flange, and the cylinder (1) is fixed on the boiler via the flange connection mounting hole.

4. A fully-combustion low-carbon hot water boiler burner according to claim 1, characterized in that: The guide fins (3) are made of a material that can be deformed when heated.

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