Combustor

Abstract

The utility model relates to a burner which comprises a main body, an incandescent light, a central gun head and a side gun are arranged in the main body, an air inlet is arranged on one side of the main body, and an air valve is arranged on the air inlet. A central partition plate is arranged in the main body, the central partition plate is an L-shaped plate which extends to the center of the main body from the air inlet and then upwards extends to the primary combustion area, and the central partition plate divides an inner cavity of the main body into two parts. A plurality of airflow guide grids are arranged on the vertical section of the central partition plate, each airflow guide grid comprises a blade and a rotating shaft fixedly connected with the two ends of the blade, and each rotating shaft is rotationally arranged on the wall of the main body; and the rotating shaft at one end of each blade is connected with an external driving part. According to the utility model, the combustion sufficiency is further improved, the combustion efficiency is improved, and the emission of nitrogen oxides (NOX) is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a burner technical field, concretely is a kind of burner. BACKGROUND

[0002] To reduce nitrogen oxides (NOX) emissions, conventional burners often use staged combustion and flue gas recirculation technology, but such technology has drawbacks. When ultra-low nitrogen combustion is used, lengthening the flame may help reduce NOX emissions, but it can cause uneven mixing of fuel gas and air. In the low-temperature combustion zone, this poor mixing can easily lead to the production of carbon monoxide (CO) and cause incomplete combustion. This not only reduces combustion efficiency, but also pollutes the environment.

[0003] The structure of conventional burners is illustrated by a low-nitrogen oxide emission burner disclosed in Chinese Utility Model Patent No. CN 207815311 U, which mainly includes a center gun, a side gun, a perpetual lamp, a housing, an air duct, and an air door. External air enters the air duct through the air door and mixes with fuel gas at the upper end of the burner. The current air duct is a simple large-diameter air duct, and the air staging is not clear, resulting in uneven mixing of air and fuel gas in the combustion zone. Therefore, there is still room for improvement in air staging for existing burners. SUMMARY

[0004] To overcome the shortcomings of the prior art, the utility model provides a burner that further improves combustion completeness, increases combustion efficiency, and reduces nitrogen oxide (NOX) emissions.

[0005] The utility model solves the technical problems by adopting the following technical solutions:

[0006] A burner includes a main body, a perpetual lamp, a center gun head, and a side gun arranged inside the main body. An air inlet is arranged on one side of the main body, and an air valve is arranged on the air inlet. A center partition is arranged inside the main body. The center partition is an L-shaped plate that extends from the air inlet to the center of the main body and then extends upward to the primary combustion zone. The center partition divides the inner cavity of the main body into two parts.

[0007] Further, the vertical section of the center partition is provided with a plurality of airflow guide gratings. The airflow guide grating includes a blade and a shaft fixedly connected to both ends of the blade. Each shaft is rotatably arranged on the wall of the main body. The shaft at one end of each blade is connected to an external driving part.

[0008] Further, the vertical section of the center partition is provided with an opening corresponding to the blade and the shaft.

[0009] Further, the driving connection part includes a pull rod connected to each other.

[0010] Further, the end of the pull rod is connected with an electric pull rod.

[0011] Further, the upper end of the side gun is bifurcated to form two sub-gun heads located inside and outside the refractory brick respectively.

[0012] Preferably, the outer wall of the refractory brick is an inwardly inclined slope.

[0013] Preferably, the sub-gun head of the side gun is a slope towards the center of the burner, and a plurality of air outlets are arranged on the slope.

[0014] Preferably, the two sides of the gun head of the center gun are symmetrically provided with upwardly inclined air outlets.

[0015] The beneficial effects of the present application are as follows:

[0016] It changes the air flow and mixing by the center partition, improves the uniformity of air and gas mixing, and helps the fuel to fully burn; the blades of the center partition can adjust the air flow between the two channels as needed, and change the air flow disturbance in the primary combustion zone. The layout structure and gun head design of the side gun and the gun head design of the center gun improve the mixing degree of gas and air. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the overall structure of the present application (the center partition is provided with blades);

[0018] Figure 2 It is a schematic view of the first embodiment structure of the center partition of the present application;

[0019] Figure 3 It is a schematic view of the gun head of the side gun of the present application;

[0020] Figure 4 It is a schematic view of the gun head of the center gun of the present application;

[0021] Figure 5 It is a schematic view of the overall structure of the present application (the center partition is not provided with blades);

[0022] In the figure, the main body 1, the air inlet 101, the permanent light 2, the center gun head 3, the gun head 301, the air outlet 302, the side gun 4, the sub-gun head 401, the slope 402, the center partition 5, the vertical section 501, the blade 502, the rotating shaft I 503, the rotating shaft II 504, the pull rod 505, the sealing bearing I 506, the fixed plate 507, the sealing bearing II 508, the refractory brick 6, and the furnace mouth 7. DETAILED DESCRIPTION

[0023] In order to better understand the present application, the following will be combined with the drawings to make a detailed description. Figures 1-5To clearly and completely describe the technical solutions in the embodiments of the present application, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] The burner of the present application comprises a main body 1, a long-lasting lamp 2, a center gun head 3 and a side gun 4 arranged in the main body 1, and a ring of fire bricks 6 arranged on the top of the main body 1. It should be noted that the structures not shown in the drawings and not introduced in the present application belong to the prior art, and will not be described here.

[0025] The top of the main body 1 is connected to a furnace opening 7. The center gun head 3 can be arranged at the center of the main body 1 to avoid the center partition plate 5, or can be arranged at the middle position of the side of the main body 1 as shown in the drawings. Figure 1 The gun head 301 of the center gun 3 is symmetrically provided with gas outlets 302 on both sides, and further gas outlets can be provided on the other two sides.

[0026] An air inlet 101 is arranged on one side of the main body 1, and an air valve is arranged on the air inlet 101. The air valve is the air valve on the existing burner, which will not be described here, and the structure of the air valve is not shown in the drawings for the sake of clear view. A center partition plate 5 is arranged in the main body 1. The center partition plate 5 is an L-shaped plate extending from the air inlet 101 to the center of the main body 1 and then upward to the primary combustion zone. The center partition plate 5 divides the inner cavity of the main body 1 and the air inlet into two parts. The two side edges of the center partition plate 5 are fixedly and sealingly connected to the inner wall of the main body 1 and the inner wall of the air inlet 101.

[0027] As a first embodiment of the center partition plate 5, as shown in the drawings, Figure 2As shown, the vertical section 501 of the center partition plate 5 is provided with a plurality of air flow guide grilles, which include blades 502 and rotating shafts (one end is rotating shaft I 503 and the other end is rotating shaft II 504) fixedly connected with both ends of the blades 502, and the rotating shaft I 503 and the rotating shaft II 504 are rotatably arranged on the wall of the main body 1. Specifically, the rotating shaft I 503 is arranged on the wall of the main body 1 through a sealing bearing I 506, the rotating shaft II 504 is fixedly arranged on the wall of the main body 1 through a fixed plate 507, a sealing bearing II 508 is arranged at the end of the fixed plate 507, and the rotating shaft II 504 is connected with the sealing bearing II 508 after penetrating through the fixed plate 507. Each of the rotating shaft I 503 is connected with an external driving part, and the driving connection part includes a pull rod 505 which is hingedly connected. The end of the pull rod 505 is preferably connected with an electric pull rod, and the opening and closing of the blade 502 is controlled in an electric manner. Of course, the end of the pull rod 505 can be provided with a handle, and the opening and closing of the blade 502 is operated in a manual manner. The vertical section 501 of the center partition plate 5 is provided with an opening corresponding to the blade 502, the rotating shaft I 503 and the rotating shaft II 504, and this structure is suitable for a circular structure inside the main body. For a square structure inside the main body, the opening can not be arranged on the vertical section of the center partition plate 5, and the blade can directly replace the center partition plate 5. By arranging the center partition plate 5, the air duct inside the main body is divided into two parts as shown, the air flows of the two parts are different, the different air flows are mixed in the primary combustion zone, and the gas is combined to form a better mixing effect. An independent air valve is arranged at each air duct of the air inlet 101, the air volume of each air duct can be adjusted through the air valve, and the air flows of the two air ducts can also be mixed through the opened blades to form multi-stage adjustment. Figure 1 As shown, the vertical section 501 of the center partition plate 5 is provided with a plurality of air flow guide grilles, which include blades 502 and rotating shafts (one end is rotating shaft I 503 and the other end is rotating shaft II 504) fixedly connected with both ends of the blades 502, and the rotating shaft I 503 and the rotating shaft II 504 are rotatably arranged on the wall of the main body 1. Specifically, the rotating shaft I 503 is arranged on the wall of the main body 1 through a sealing bearing I 506, the rotating shaft II 504 is fixedly arranged on the wall of the main body 1 through a fixed plate 507, a sealing bearing II 508 is arranged at the end of the fixed plate 507, and the rotating shaft II 504 is connected with the sealing bearing II 508 after penetrating through the fixed plate 507. Each of the rotating shaft I 503 is connected with an external driving part, and the driving connection part includes a pull rod 505 which is hingedly connected. The end of the pull rod 505 is preferably connected with an electric pull rod, and the opening and closing of the blade 502 is controlled in an electric manner. Of course, the end of the pull rod 505 can be provided with a handle, and the opening and closing of the blade 502 is operated in a manual manner. The vertical section 501 of the center partition plate 5 is provided with an opening corresponding to the blade 502, the rotating shaft I 503 and the rotating shaft II 504, and this structure is suitable for a circular structure inside the main body. For a square structure inside the main body, the opening can not be arranged on the vertical section of the center partition plate 5, and the blade can directly replace the center partition plate 5. By arranging the center partition plate 5, the air duct inside the main body is divided into two parts as shown, the air flows of the two parts are different, the different air flows are mixed in the primary combustion zone, and the gas is combined to form a better mixing effect. An independent air valve is arranged at each air duct of the air inlet 101, the air volume of each air duct can be adjusted through the air valve, and the air flows of the two air ducts can also be mixed through the opened blades to form multi-stage adjustment.

[0028] The upper end of the side gun 4 is bifurcated to form two sub-gun heads 401 located inside and outside the refractory brick 6. This design can better realize the sufficient combustion of the primary combustion zone and the secondary combustion zone.

[0029] In order to make the gas of the side gun outside the refractory brick 6 directly sprayed into the combustion zone and fully mixed with air, the outer wall of the refractory brick 6 is an inwardly inclined slope, and the sub-gun head 401 of the side gun is a slope 402 facing the center of the burner, and a plurality of gas outlets are arranged on the slope 402.

[0030] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or replace some or all of the technical features with equivalent replacements; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A burner comprising a main body, a long-lasting lamp, a center gun head and a side gun arranged in the main body, an air inlet arranged on one side of the main body, and an air valve arranged on the air inlet; characterized in that: A center partition is arranged in the main body, which is an L-shaped plate extending from the air inlet to the center of the main body and then upward to the primary combustion zone, and the center partition divides the inner cavity of the main body into two parts.

2. A burner as claimed in claim 1, characterised in that: The vertical section of the center partition is provided with a plurality of airflow guide gratings, each of which comprises a blade and a rotating shaft fixedly connected to both ends of the blade, and each rotating shaft is rotatably arranged on the wall of the main body; and the rotating shaft at one end of each blade is connected with an external driving part.

3. A burner as claimed in claim 2, characterised in that: The vertical section of the center partition is provided with openings corresponding to the blades and the rotating shafts.

4. A burner as claimed in claim 2, characterised in that: The driving part comprises a pull rod which is connected with each other in a hinged manner.

5. A burner as claimed in claim 4, characterised in that: The end of the pull rod is connected with an electric pull rod.

6. A burner as claimed in claim 1, characterised in that: The upper end of the side gun is bifurcated to form two sub-gun heads respectively located inside and outside the refractory brick.

7. A burner as claimed in claim 6, characterised in that: The outer wall of the refractory brick is an inwardly inclined slope.

8. A burner as claimed in claim 7, characterised in that: The sub-gun head of the side gun is a slope facing the center of the burner, and a plurality of air outlets are arranged on the slope.

9. A burner as claimed in claim 1, characterised in that: The two sides of the gun head of the center gun are symmetrically provided with upwardly inclined air outlets.

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