A four-stage air supply gas low nitrogen burner

Abstract

The present invention provides a four-stage air supply gas low-nitrogen burner, comprising an air inlet pipe, a gas inner pipe assembly, a burner brick assembly and an air supply assembly. The burner brick assembly and the air supply assembly of the present invention are arranged such that a fourth air supply through hole is arranged inside the burner brick, and air is supplied in cooperation with the original three-stage air supply through holes. The burner adopts four-stage air supply, increases the air intake of the burner, reduces the burner flame temperature, reduces nitrogen oxides generated by combustion, and makes the smoke emission meet the emission standard. A first air supply through hole, a second air supply through hole and a third air supply through hole are opened on the sleeve, and decentralized air supply through holes are adopted to ensure the air supply requirement of a high-power burner while reducing the noise generated by the high-power burner, thereby avoiding noise pollution to the surrounding environment. When the air and gas mixture is ejected from the burner, the diverter hole diverts the air and gas mixture, so that the mixture is evenly distributed in the burner, ensures full combustion of the gas, and improves the combustion efficiency of the gas.

Description

Technical Field

[0001] The invention belongs to the technical field of air supply gas burners, and in particular relates to a four-stage air supply gas low-nitrogen burner. Background Art

[0002] With the country's control over combustion product emissions, it is required that the nitrogen oxide content produced by burner combustion be controlled within the required range. Existing burners mostly use two-stage air supply and three-stage air supply burners. The burner flame temperature is relatively high, and the nitrogen oxides produced by combustion do not meet the emission standards. It is urgent to develop a four-stage air supply gas low-nitrogen burner to solve the above problems and facilitate market promotion and application.

[0003] Most existing burners use two-stage and three-stage air supply burners. The burner flame temperature is relatively high, and the nitrogen oxides produced by combustion do not meet the emission standards. High-power burners generally have high noise, causing noise pollution to the surrounding environment.

[0004] Therefore, it is very necessary to invent a four-stage air supply gas low nitrogen burner. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a four-stage air supply gas low-nitrogen burner to solve the problem that the existing burners mostly use two-stage air supply and three-stage air supply burners, the burner flame temperature is relatively high, the nitrogen oxides produced by combustion do not meet the emission standards, and high-power burners generally have the phenomenon of high noise, causing noise pollution to the surrounding environment. A four-stage air supply gas low-nitrogen burner includes an air inlet pipe, a gas inner pipe assembly, a burner brick assembly and an air supply assembly, the air inlet pipe is fixed to one end of the burner brick assembly by bolts; the air supply assembly is fixed to the middle position of the burner brick assembly near the air inlet pipe side by bolts; the gas inner pipe assembly is fixed to the middle position of the air inlet pipe by bolts, and one end of the gas inner pipe assembly passes through the outside of the air inlet pipe, and the other end of the gas inner pipe assembly is located inside the air supply assembly.

[0006] The gas inner tube assembly includes an inner tube, a nozzle and a gas outlet. The inner tube is fixed at a middle position inside the air inlet pipe by bolts, and one end of the inner tube passes through the outside of the air inlet pipe, and the other end of the inner tube is located inside the air supply assembly; the nozzle is fixed to the outside of the end of the inner tube by bolts, and the nozzle is located inside the air supply assembly; there are multiple gas outlets, and the gas outlets are evenly opened on the nozzles.

[0007] The burner brick assembly includes a burner brick, a mounting hole, a diverter plate, a fourth air supply hole and a diverter hole. The mounting hole is arranged in the middle position inside the burner brick, and both ends of the mounting hole penetrate to both ends of the burner brick; the diverter plate is fixed to the end of the mounting hole away from the air inlet pipe by bolts; a plurality of diverter holes are used, and the diverter holes are evenly arranged on the diverter plate; a plurality of fourth air supply holes are used, and the fourth air supply holes are evenly arranged inside the burner brick.

[0008] The size of the diverter plate matches the size of the mounting hole; both ends of the fourth air supply hole penetrate to both ends of the burner brick, and the fourth air supply hole is located outside the mounting hole; the diverter hole is cylindrical, and the depth of the diverter hole is equal to the thickness of the diverter plate.

[0009] The air supply assembly includes an air supply cylinder, a sleeve, a through slot, a first air supply through hole, a second air supply through hole and a third air supply through hole. The air supply cylinder is fixed to the side of the mounting hole close to the air inlet pipe by bolts, and the size of the air supply cylinder matches the size of the mounting hole; the sleeve is fixed to the side of the air supply cylinder close to the air inlet pipe by bolts, and the diameter of the sleeve is smaller than the diameter of the air supply cylinder; the through slot is arranged in the middle position of the sleeve close to the air inlet pipe, and the size of the through slot matches the size of the inner pipe; a plurality of the first air supply through holes are used, and the first air supply through holes are evenly arranged on the side of the sleeve close to the air inlet pipe, and the first air supply through hole is located on the outside of the through slot; a plurality of the second air supply through holes are used, and the second air supply through holes are evenly arranged on the outside of the sleeve; a plurality of the third air supply through holes are used, and the third air supply through holes are evenly arranged at the connection between the air supply cylinder and the sleeve.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The burner brick assembly of the present invention is provided with a fourth air supply hole inside the burner brick, which cooperates with the original three-stage air supply hole for air supply. The burner adopts four-stage air supply, which increases the air intake of the burner, reduces the burner flame temperature, reduces the nitrogen oxides generated by combustion, and makes the flue gas emissions meet the emission standards.

[0012] 2. The air supply assembly of the present invention is provided with a first air supply hole, a second air supply hole and a third air supply hole on the sleeve, and a distributed air supply hole is adopted to ensure the air supply needs of the high-power burner while reducing the noise generated by the high-power burner to avoid noise pollution to the surrounding environment.

[0013] 3. The arrangement of the diverter plate and the diverter holes of the present invention enables the diverter holes to divert the air and gas mixture when the mixture is ejected from the burner, so that the mixture is evenly distributed in the burner, thereby ensuring full combustion of the gas and improving the combustion efficiency of the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a structural schematic diagram of the gas inner pipe assembly of the present invention.

[0016] Figure 3 It is a structural schematic diagram of the burner brick assembly of the present invention.

[0017] Figure 4 It is a structural schematic diagram of the diverter plate and diverter hole of the present invention.

[0018] Figure 5 It is a structural schematic diagram of the air supply component of the present invention.

[0019] In the figure:

[0020] 1-air inlet pipe, 2-gas inner pipe assembly, 21-inner pipe, 22-nozzle, 23-gas outlet, 3-burner brick assembly, 31-burner brick, 32-mounting hole, 33-diverter plate, 34-fourth air supply hole, 35-diverter hole, 4-air supply assembly, 41-air supply cylinder, 42-sleeve, 43-through groove, 44-first air supply hole, 45-second air supply hole, 46-third air supply hole. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings:

[0022] Example:

[0023] As attached Figure 1 To Attachment Figure 5 Shown

[0024] The present invention provides a four-stage air supply gas low-nitrogen burner, comprising an air inlet pipe 1, a gas inner pipe assembly 2, a burner brick assembly 3 and an air supply assembly 4. The gas is transported from the inner pipe 21 to the nozzle 22, and the gas is transported to the air supply cylinder 41 through the gas outlet 23, so as to facilitate the mixing of air and gas. A first air supply through hole 44, a second air supply through hole 45 and a third air supply through hole 46 are provided on the sleeve 42, and a dispersed air supply through hole is adopted to ensure the air supply requirement of the high-power burner while reducing the noise generated by the high-power burner. In order to avoid noise pollution to the surrounding environment, a fourth air supply hole 34 is provided inside the burner brick 31 to cooperate with the original three-stage air supply hole for air supply. The burner adopts four-stage air supply to increase the air intake of the burner, reduce the burner flame temperature, reduce the nitrogen oxides produced by combustion, and make the flue gas emissions meet the emission standards. When the air and gas mixture is ejected from the burner, the diverter hole 35 diverts the air and gas mixture so that the mixture is evenly distributed in the burner, ensuring full combustion of the gas and improving the combustion efficiency of the gas.

[0025] The gas inner tube assembly 2 includes an inner tube 21, a nozzle 22 and a gas outlet 23. The gas is transported from the inner tube 21 to the nozzle 22, and then transported to the air supply tube 41 through the gas outlet 23 to facilitate mixing of air and gas.

[0026] The burner brick assembly 3 includes a burner brick 31, a mounting hole 32, a diverter plate 33, a fourth air supply hole 34 and a diverter hole 35. The fourth air supply hole 34 is arranged inside the burner brick 31 to cooperate with the original three-stage air supply hole for air supply. The burner adopts a four-stage air supply to increase the air intake of the burner, reduce the burner flame temperature, reduce the nitrogen oxides generated by combustion, and make the flue gas emissions meet the emission standards. When the air and gas mixture is ejected from the burner, the diverter hole 35 diverts the air and gas mixture so that the mixture is evenly distributed in the burner, ensuring full combustion of the gas and improving the combustion efficiency of the gas.

[0027] The air supply assembly 4 includes an air supply cylinder 41, a sleeve 42, a through groove 43, a first air supply hole 44, a second air supply hole 45 and a third air supply hole 46. The first air supply hole 44, the second air supply hole 45 and the third air supply hole 46 are opened on the sleeve 42. Distributed air supply holes are used to ensure the air supply needs of the high-power burner while reducing the noise generated by the high-power burner to avoid noise pollution to the surrounding environment.

[0028] Utilizing the technical solution of the present invention, or those skilled in the art designing similar technical solutions inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the protection scope of the present invention.

Claims

1. A four-stage air supply gas low nitrogen burner, characterized in that: The invention comprises an air inlet pipe (1), a gas inner pipe assembly (2), a burner brick assembly (3) and an air supply assembly (4), wherein the air inlet pipe (1) is fixed to one end of the burner brick assembly (3) by means of bolts; the air supply assembly (4) is fixed to a middle position of the burner brick assembly (3) near one side of the air inlet pipe (1) by means of bolts; the gas inner pipe assembly (2) is fixed to a middle position of the air inlet pipe (1) by means of bolts, and one end of the gas inner pipe assembly (2) penetrates to the outside of the air inlet pipe (1), and the other end of the gas inner pipe assembly (2) is located inside the air supply assembly (4); The gas inner tube assembly (2) comprises an inner tube (21), a nozzle (22) and a gas outlet (23); the inner tube (21) is fixed at a middle position inside the air inlet tube (1) by means of bolts, and one end of the inner tube (21) penetrates to the outside of the air inlet tube (1), and the other end of the inner tube (21) is located inside the air supply assembly (4); the nozzle (22) is fixed to the outside of the end of the inner tube (21) by means of bolts, and the nozzle (22) is located inside the air supply assembly (4); a plurality of gas outlets (23) are used, and the gas outlets (23) are evenly arranged on the nozzle (22); The burner brick assembly (3) comprises a burner brick (31), a mounting hole (32), a diverter plate (33), a fourth air supply hole (34) and a diverter hole (35); the mounting hole (32) is arranged at a middle position inside the burner brick (31), and both ends of the mounting hole (32) penetrate to both ends of the burner brick (31); the diverter plate (33) is fixed to the end of the mounting hole (32) away from the air inlet pipe (1) by bolts; a plurality of diverter holes (35) are used, and the diverter holes (35) are evenly arranged on the diverter plate (33); a plurality of fourth air supply holes (34) are used, and the fourth air supply holes (34) are evenly arranged inside the burner brick (31); The size of the diverter plate (33) matches the size of the mounting hole (32); the two ends of the fourth air supply through hole (34) penetrate through the two ends of the burner brick (31), and the fourth air supply through hole (34) is located outside the mounting hole (32); the diverter hole (35) is cylindrical, and the depth of the diverter hole (35) is equal to the thickness of the diverter plate (33); The air supply assembly (4) comprises an air supply cylinder (41), a sleeve (42), a through slot (43), a first air supply through hole (44), a second air supply through hole (45) and a third air supply through hole (46); the air supply cylinder (41) is fixed to a side of the interior of the mounting hole (32) close to the air inlet pipe (1) by means of bolts, and the size of the air supply cylinder (41) matches the size of the mounting hole (32); the sleeve (42) is fixed to a side of the interior of the air supply cylinder (41) close to the air inlet pipe (1) by means of bolts, and the diameter of the sleeve (42) is smaller than the diameter of the air supply cylinder (41); the through slot (43) is provided at a side of the sleeve (42) close to the air inlet pipe (1); The sleeve (42) is provided with a plurality of first air supply holes (44), and the first air supply holes (44) are evenly arranged on the side of the sleeve (42) close to the air inlet pipe (1), and the first air supply holes (44) are located on the outside of the through slot (43); the second air supply holes (45) are provided with a plurality of second air supply holes (45), and the second air supply holes (45) are evenly arranged on the outside of the sleeve (42); the third air supply holes (46) are provided with a plurality of third air supply holes (46), and the third air supply holes (46) are evenly arranged at the connection between the air supply tube (41) and the sleeve (42).

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