Combustor
By setting up a layered air chamber and runner structure in the burner, layered combustion between gas and air is achieved, solving the problem of high nitrogen oxide emissions in the burner, and improving the efficiency and environmental performance of the burner.
Patent Information
- Application Number
- CN202422202338.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The existing burners emit high emissions of harmful substances such as nitrogen oxides, CO, SO2, SO3 and dust during combustion, which affects the efficiency of the heating furnace and causes harm to the environment and health.
A burner is designed, including the first and second air chambers, and the air flow rate is controlled separately through different air flow channels, so as to realize layered combustion between gas and air, reduce the central flame temperature and perform secondary combustion, and reduce the formation of nitrogen oxides.
It effectively reduces nitrogen oxide emissions, improves the efficiency of the burner and reduces environmental pollution.
Smart Images
Figure CN223121424U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of burners, and in particular to a burner. Background Art
[0002] In heating furnaces, kilns, incinerators or boilers in industries such as petroleum, petrochemical, metallurgy, and machinery, a burner device is required. A burner converts the chemical energy of fuel into heat energy through the combustion chemical reaction of fuel and air, and is used to heat various materials to achieve process processes such as heating up, drying or chemical reaction of the materials. In the combustion process of fuel, there is generally a situation where some fuel cannot react completely, and harmful pollutants such as NOx (including NO, NO2, etc.), CO, SO2, SO3 and dust are also generated, and high jet and combustion noise are emitted. On the one hand, these situations reduce the efficiency of the heating furnace and cause partial energy loss, and on the other hand, they also harm human health and the atmospheric environment.
[0003] With stricter regulations, higher requirements are put forward for the emission requirements of burners.
[0004] Therefore, it is necessary to improve the burners in the prior art. Content of the Utility Model
[0005] The purpose of the utility model is to overcome the defects existing in the prior art and provide a burner that can reduce the emission of nitrogen oxides.
[0006] To achieve the above technical effects, the technical solution of the utility model is: a burner, including a burner body, a burner block is arranged at the end of the burner body, and a mixing device is arranged in the burner block; a gas pipe passing through the burner body is also included, the gas pipe passes through the mixing device, and the gas pipe is provided with a gas outlet; the burner body is provided with a first air chamber and a second air chamber, the mixing device is provided with a first air flow channel, the first air flow channel is arranged through, and the first air flow channel is communicated with the first air chamber; the burner block is provided with a second air flow channel communicated with the second air chamber, and the second air flow channel extends to the end of the burner block.
[0007] The preferred technical solution is that the burner body is provided with an air inlet, the air inlet is communicated with the first air chamber and the second air chamber, and the air inlet is provided with a valve plate for adjusting the air flow rates respectively entering the first air chamber and the second air chamber.
[0008] Preferably, an isolation sleeve and an isolation plate are arranged inside the burner body. The isolation sleeve and the isolation plate cooperate to divide the inner cavity of the burner body into the first air chamber and the second air chamber.
[0009] Preferably, the burner block is provided with an ignition gun installation pipe, and the ignition gun installation pipe extends into the burner block and faces the gas outlet direction.
[0010] Preferably, the burner block is provided with a flame detector installation pipe, and the flame detector installation pipe extends into the burner block and faces the gas outlet direction. The flame detector installation pipe is arranged adjacent to the ignition gun installation pipe.
[0011] Preferably, the mixing device is provided with a third air flow channel, and the third air flow channel is communicated with the first air chamber and the inner cavity of the burner block. The third air flow channel is arranged on the outer periphery of the mixing device, and a plurality of third air flow channels are arranged along the circumferential direction of the mixing device.
[0012] Preferably, a plurality of first air flow channels are arranged along the circumferential direction of the mixing device, and the plurality of first air flow channels are evenly distributed on the outer periphery of the gas outlet.
[0013] Preferably, a plurality of second air flow channels are arranged along the circumferential direction of the burner block and are evenly distributed.
[0014] The advantages and beneficial effects of the present utility model are as follows: The burner of the present utility model has a reasonable structure. By setting the first air chamber and the second air chamber, the air in the first air chamber is mixed with the gas through the first air flow channel and first participates in combustion. Since the gas is supplied in excess relative to the air, the gas is not completely burned, reducing the temperature of the central flame and reducing the formation of nitrogen oxides; the air in the second air chamber is secondarily burned with the remaining gas through the second air flow channel. By burning the air and the gas in a hierarchical manner, the emission of oxides is effectively reduced. Description of the Drawings
[0015] Figure 1 is a schematic structural diagram of an embodiment of the burner of the present utility model;
[0016] Figure 2 is Figure 1 the top view of
[0017] Figure 3 is Figure 2 the sectional view taken along A-A;
[0018] Figure 4 is Figure 1Front view;
[0019] Figure 5 is Figure 4 Sectional view along B - B;
[0020] Figure 6 is Figure 1 Side view of;
[0021] In the figure: 1, burner body; 11, first air chamber; 12, second air chamber; 13, air inlet; 2, burner block; 21, second air flow channel; 3, mixing device; 31, first air flow channel; 32, third air flow channel; 4, gas pipe; 41, gas outlet; 5, valve plate; 6, isolation sleeve; 61, isolation plate; 7, ignition gun installation pipe; 8, flame detector installation pipe. Detailed implementation manners
[0022] The following combines the drawings and embodiments to further describe the detailed implementation manners of the present utility model. The following embodiments are only used to more clearly illustrate the technical solution of the present utility model, and cannot be used to limit the protection scope of the present utility model.
[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Embodiment
[0024] As Figures 1 - 6 shown, the burner of the embodiment includes a burner body 1, a burner block 2 is provided at the end of the burner body 1, and a mixing device 3 is provided in the burner block 2; it further includes a gas pipe 4 passing through the burner body 1, the gas pipe 4 passes through the mixing device 3, and the gas pipe 4 is provided with a gas outlet 41; the burner body 1 is provided with a first air chamber 11 and a second air chamber 12, the mixing device 3 is provided with a first air flow channel 31, the first air flow channel 31 is provided throughout, and the first air flow channel 31 is communicated with the first air chamber 11; the burner block 2 is provided with a second air flow channel 21 communicated with the second air chamber 12, and the second air flow channel 21 extends to the end of the burner block 2.
[0025] With such a design, the air in the first air chamber 11 passes through the first air flow channel 31 and mixes with the fuel gas to participate in combustion first. Since the fuel gas is supplied in excess relative to the air, the fuel gas does not burn completely, reducing the temperature of the central flame and the formation of nitrogen oxides. The air in the second air chamber 12 passes through the second air flow channel 21 and undergoes secondary combustion with the remaining fuel gas. By burning the air and the fuel gas in a hierarchical manner, the emission of oxides is effectively reduced.
[0026] Specifically, the burner body 1 is provided with an air inlet 13, which is communicated with the first air chamber 11 and the second air chamber 12. The air inlet 13 is provided with a valve plate 5, and the valve plate 5 is used to adjust the air flow rates entering the first air chamber 11 and the second air chamber 12 respectively.
[0027] With such a design, the valve plate 5 can adjust the air ratio delivered through the first air chamber 11 and the second air chamber 12.
[0028] Specifically, an isolation sleeve 6 and an isolation plate 61 are arranged inside the burner body 1. The isolation sleeve 6 and the isolation plate 61 cooperate to divide the inner cavity of the burner body 1 into the first air chamber 11 and the second air chamber 12.
[0029] With such a design, the isolation between the first air chamber 11 and the second air chamber 12 is achieved.
[0030] Furthermore, the burner block 2 is provided with an igniter installation pipe 7, and the igniter installation pipe 7 extends into the burner block 2 and faces the gas outlet 41 in the gas outlet direction.
[0031] With such a design, a position is provided for the installation of the igniter.
[0032] Furthermore, the burner block 2 is provided with a flame detector installation pipe 8, and the flame detector installation pipe 8 extends into the burner block 2 and faces the gas outlet 41 in the gas outlet direction. The flame detector installation pipe 8 is arranged adjacent to the igniter installation pipe 7.
[0033] With such a design, a flame detector is installed to detect whether there is a flame in the burner.
[0034] Furthermore, the mixing device 3 is provided with a third air flow channel 32, and the third air flow channel 32 is communicated with the first air chamber 11 and the inner cavity of the burner block 2. The third air flow channel 32 is arranged on the outer periphery of the mixing device 3, and a plurality of third air flow channels 32 are arranged along the circumferential direction of the mixing device 3.
[0035] Through such a design, the air and the fuel gas are further burned in a layered manner, thereby effectively reducing the emission of nitrogen oxides.
[0036] Specifically, a plurality of the first air flow channels 31 are arranged along the circumferential direction of the mixing device 3, and the plurality of the first air flow channels 31 are uniformly distributed on the outer periphery of the fuel gas outlet 41.
[0037] Through such a design, it is beneficial to the full mixing of the air and the fuel gas.
[0038] Specifically, a plurality of the second air flow channels 21 are arranged along the circumferential direction of the burner block 2 and are uniformly arranged.
[0039] Through such a design, it is beneficial to make the combustion flame tend to be flat, avoiding the concentration of the flame and the phenomenon of local high temperature.
[0040] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.
Claims
1. A burner, characterized in that, The burner comprises a burner body (1), a burner brick (2) is arranged at the end of the burner body (1), and a mixing device (3) is arranged in the burner brick (2); the burner also comprises a gas pipe (4) penetrating the burner body (1), the gas pipe (4) penetrating the mixing device (3), and the gas pipe (4) is provided with a gas outlet (41); the burner body (1) is provided with a first air chamber (11) and a second air chamber (12), the mixing device (3) is provided with a first air flow channel (31), the first air flow channel (31) is arranged to penetrate, and the first air flow channel (31) is arranged to communicate with the first air chamber (11); the burner brick (2) is provided with a second air flow channel (21) communicating with the second air chamber (12), and the second air flow channel (21) extends to the end of the burner brick (2).
2. The burner according to claim 1, characterized in that, The burner body (1) is provided with an air inlet (13), the air inlet (13) is communicated with the first air chamber (11) and the second air chamber (12), the air inlet (13) is provided with a valve plate (5), and the valve plate (5) is used to adjust the air flow rates entering the first air chamber (11) and the second air chamber (12) respectively.
3. The burner according to claim 2, characterized in that, An isolation sleeve (6) and an isolation plate (61) are provided in the burner body (1); the isolation sleeve (6) and the isolation plate (61) cooperate to separate the inner cavity of the burner body (1) into the first air chamber (11) and the second air chamber (12).
4. The burner according to claim 1, characterized in that, The burner brick (2) is provided with an ignition gun mounting tube (7), and the ignition gun mounting tube (7) extends into the burner brick (2) and faces the gas outlet direction of the gas outlet (41).
5. The burner according to claim 4, characterized in that, The burner brick (2) is provided with a flame detector mounting tube (8), the flame detector mounting tube (8) extending into the burner brick (2) and facing the gas outlet direction of the gas outlet (41), and the flame detector mounting tube (8) is arranged adjacent to the ignition gun mounting tube (7).
6. The burner according to claim 1, characterized in that, The mixing device (3) is provided with a third air flow channel (32), the third air flow channel (32) is communicated with the first air chamber (11) and the inner cavity of the burner brick (2), the third air flow channel (32) is arranged on the outer periphery of the mixing device (3), and a plurality of the third air flow channels (32) are arranged along the circumference of the mixing device (3).
7. The burner according to claim 1, characterized in that, A plurality of the first air flow channels (31) are arranged along the circumference of the mixing device (3), and the plurality of the first air flow channels (31) are evenly distributed on the periphery of the gas outlet (41).
8. The burner according to claim 1, characterized in that, A plurality of second air flow channels (21) are evenly distributed along the circumference of the burner brick (2).