Exhaust gas treatment device

Abstract

The application discloses a waste gas treatment device, and relates to the technical field of waste gas treatment, which comprises a waste gas pipeline assembly, a hydrogen pipeline and a waste gas combustion area; the waste gas pipeline assembly is provided with a waste gas injection port; the hydrogen pipeline is provided with a hydrogen injection port; the waste gas pipeline assembly and the hydrogen pipeline jointly form the waste gas combustion area; the waste gas injection port is used for injecting waste gas into the waste gas combustion area; and the hydrogen injection port is used for injecting hydrogen into the waste gas combustion area, so that the waste gas and the hydrogen are mixed and combusted in the waste gas combustion area. The waste gas treatment device provided by the application can inject waste gas into the waste gas combustion area through the waste gas injection port, and can inject hydrogen into the waste gas combustion area through the hydrogen injection port, so that the waste gas in the waste gas pipeline assembly and the hydrogen in the hydrogen pipeline can be mixed and combusted in the waste gas combustion area, thereby achieving sufficient combustion of the waste gas, reducing the emission of gaseous pollutants, and reducing carbon emission and energy waste.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and in particular to a waste gas treatment device. Background Technology

[0002] Industries such as steel, chemical, and coking emit tens of thousands of cubic meters of low-calorific-value waste gas (blast furnace gas, converter gas, off-gas, etc.) per hour. The calorific value of these waste gases is extremely low (some <600 kcal / m³). 3 If the combustion temperature is below the lower limit of stable combustion, combustion cannot be achieved or the combustion is unstable. The traditional approach is to release the gas by flaring it with natural gas, which wastes energy and increases carbon emissions. There is room for improvement. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an exhaust gas treatment device that enables the mixing and combustion of exhaust gas and hydrogen, thereby achieving complete combustion of the exhaust gas, reducing the emission of gaseous pollutants, and reducing carbon emissions and energy waste.

[0004] According to an embodiment of the present invention, an exhaust gas treatment device includes: an exhaust gas pipeline assembly having an exhaust gas injection port; a hydrogen pipeline having a hydrogen injection port, the hydrogen pipeline and the exhaust gas pipeline assembly together forming at least one exhaust gas combustion zone, the exhaust gas injection port being used to inject exhaust gas into the exhaust gas combustion zone and the hydrogen injection port being used to inject hydrogen into the exhaust gas combustion zone, so that the exhaust gas and hydrogen are mixed and burned in the exhaust gas combustion zone.

[0005] According to the waste gas treatment device of the present invention, waste gas can be transported by setting up a waste gas pipeline assembly, and hydrogen can be transported by setting up a hydrogen pipeline. The waste gas pipeline assembly can spray waste gas into the waste gas combustion zone through a waste gas injection port, and the hydrogen pipeline can spray hydrogen into the waste gas combustion zone through a hydrogen injection port, so that the waste gas in the waste gas pipeline assembly and the hydrogen in the hydrogen pipeline can be mixed and burned in the waste gas combustion zone, thereby achieving complete combustion of waste gas, reducing the emission of gaseous pollutants, and reducing carbon emissions and energy waste.

[0006] According to some embodiments of the waste gas treatment apparatus of the present invention, the waste gas pipeline assembly includes a primary waste gas pipeline and a secondary waste gas pipeline, a primary waste gas combustion zone is formed between the hydrogen pipeline and the primary waste gas pipeline, and a secondary waste gas combustion zone is formed between the hydrogen pipeline and the secondary waste gas pipeline; wherein, the primary waste gas pipeline is provided with a primary waste gas injection port for injecting waste gas into the primary waste gas combustion zone, the secondary waste gas pipeline is provided with a secondary waste gas injection port for injecting waste gas into the secondary waste gas combustion zone, and the hydrogen pipeline is provided with a primary hydrogen injection port for injecting hydrogen into the primary waste gas combustion zone and a secondary hydrogen injection port for injecting hydrogen into the secondary waste gas combustion zone.

[0007] According to some embodiments of the waste gas treatment apparatus of the present invention, the hydrogen pipeline, the primary waste gas pipeline, and the secondary waste gas pipeline are arranged sequentially from the inside to the outside in a radial direction; wherein, the hydrogen pipeline and the primary waste gas pipeline are radially spaced apart and the primary waste gas combustion zone is located between the hydrogen pipeline and the primary waste gas pipeline; and / or, the end of the secondary waste gas pipeline protrudes beyond the end of the hydrogen pipeline, so that the secondary waste gas combustion zone is located inside the secondary waste gas pipeline and in the direction of extension of the end of the hydrogen pipeline.

[0008] According to some embodiments of the waste gas treatment apparatus of the present invention, the primary waste gas injection port is located on the side of the primary waste gas pipeline facing the hydrogen pipeline, and the primary hydrogen injection port is located on the outside of the hydrogen pipeline, and the primary waste gas injection port and the primary hydrogen injection port spray gas toward each other.

[0009] According to some embodiments of the waste gas treatment apparatus of the present invention, the primary waste gas pipeline includes a gas supply ring pipe and a plurality of primary gas supply pipe bodies, the plurality of primary gas supply pipe bodies being distributed around the hydrogen pipeline, and the outlet ends of the plurality of primary gas supply pipe bodies being connected to the gas supply ring pipe, the primary waste gas injection port being disposed on the inner peripheral wall of the gas supply ring pipe; wherein, the end of the hydrogen pipeline is formed with a radially outwardly protruding outlet convex ring, the outlet convex ring being located inside the gas supply ring pipe and radially opposite to each other, the primary hydrogen injection port being disposed on the outer peripheral wall of the outlet convex ring.

[0010] According to some embodiments of the waste gas treatment apparatus of the present invention, the primary waste gas injection port is provided in a plurality of locations, and the plurality of primary waste gas injection ports are distributed circumferentially spaced apart on the inner peripheral wall of the gas supply ring pipe; and / or, the primary hydrogen injection port is provided in a plurality of locations, and the plurality of primary hydrogen injection ports are distributed circumferentially spaced apart on the outer peripheral wall of the gas outlet convex ring; and / or, at least a portion of the primary gas supply pipe body is constructed as a Venturi tube.

[0011] According to some embodiments of the waste gas treatment apparatus of the present invention, the secondary hydrogen injection port is disposed at the end of the hydrogen pipeline and is open on the end face toward the secondary waste gas combustion zone; and / or, the secondary waste gas pipeline includes a plurality of secondary gas supply pipes, the plurality of secondary gas supply pipes are distributed around the primary waste gas pipeline, and the secondary waste gas injection port is disposed at the end of the secondary gas supply pipe and is configured to inject gas toward the secondary waste gas combustion zone in a radially inwardly inclined manner.

[0012] According to some embodiments of the waste gas treatment apparatus of the present invention, the end face of the secondary gas supply pipe is constructed as an inclined end face, the inclined end face is configured to be inclined from the inside to the outside along the extension direction of the secondary gas supply pipe, and the secondary waste gas injection port is opened toward the secondary waste gas combustion zone in a direction perpendicular to the inclined end face.

[0013] According to some embodiments of the waste gas treatment apparatus of the present invention, there are multiple secondary hydrogen injection ports, and the multiple secondary hydrogen injection ports are sequentially distributed circumferentially along the end of the hydrogen pipeline; and / or, there are multiple sets of secondary hydrogen injection ports, and the multiple sets of secondary hydrogen injection ports are sequentially distributed radially along the end of the hydrogen pipeline.

[0014] According to some embodiments of the present invention, the exhaust gas treatment apparatus further includes an external channel, in which both the exhaust gas pipeline assembly and the hydrogen pipeline are located, and a baffle is connected to the end of the external channel. The baffle is configured to extend obliquely from the inside to the outside along the gas guiding direction of the exhaust gas pipeline assembly or the hydrogen pipeline.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of a waste gas treatment device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the end face of a primary exhaust gas pipeline according to an embodiment of the present invention; Figure 3 This is a side view of a primary exhaust gas duct according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the end face of the venting ring according to an embodiment of the present invention; Figure 5 This is a side view of the vent ring according to an embodiment of the present invention.

[0017] Figure label: Waste gas treatment device 100, Exhaust gas duct assembly 1, primary exhaust gas duct 11, air supply loop 111, primary air supply pipe body 112, venturi tube 1121, secondary exhaust gas duct 12, secondary exhaust gas nozzle 121, secondary air supply pipe body 122, second venturi tube 1221, inclined end face 1222. Hydrogen pipeline 2, hydrogen injection port 21, primary hydrogen injection port 211, secondary hydrogen injection port 212, exhaust convex ring 22. Exhaust gas combustion zone 3, primary exhaust gas combustion zone 31, secondary exhaust gas combustion zone 32, external passage 4, baffle 5. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] The following is for reference. Figures 1-5The exhaust gas treatment apparatus 100 according to an embodiment of the present invention allows exhaust gas and hydrogen to be mixed and burned, thereby achieving complete combustion of the exhaust gas, reducing the emission of gaseous pollutants, and reducing carbon emissions and energy waste.

[0022] like Figure 1 As shown, an exhaust gas treatment device 100 according to an embodiment of the present invention includes: an exhaust gas pipeline assembly 1 and a hydrogen pipeline 2.

[0023] The exhaust gas duct assembly 1 has an exhaust gas injection port; the hydrogen duct 2 has a hydrogen injection port 21. The hydrogen duct 2 and the exhaust gas duct assembly 1 together form at least one exhaust gas combustion zone 3. The exhaust gas injection port is used to inject exhaust gas into the exhaust gas combustion zone 3 and the hydrogen injection port 21 is used to inject hydrogen into the exhaust gas combustion zone 3 so that the exhaust gas and hydrogen are mixed and burned in the exhaust gas combustion zone 3.

[0024] Specifically, the waste gas treatment device 100 is used to treat waste gas, such as low-calorific-value waste gas emitted by industries such as steel and chemicals, in order to reduce the emission of gaseous pollutants. The waste gas treatment device 100 includes a waste gas pipeline assembly 1 and a hydrogen pipeline 2. The waste gas pipeline assembly 1 allows waste gas to flow inside it for waste gas transportation, and the hydrogen pipeline 2 allows hydrogen to flow inside it for hydrogen transportation.

[0025] The exhaust gas duct assembly 1 has an exhaust gas injection port, which is configured to open towards the outside of the exhaust gas duct assembly 1 to connect the internal space of the exhaust gas duct assembly 1 with the external space, so that the exhaust gas in the exhaust gas duct assembly 1 can be transported out through the exhaust gas injection port. At the same time, the hydrogen duct 2 has a hydrogen injection port 21, which is configured to open towards the outside of the hydrogen duct 2 to connect the internal space of the hydrogen duct 2 with the external space, so that the hydrogen in the hydrogen duct 2 can be transported out through the hydrogen injection port 21.

[0026] Furthermore, the hydrogen pipeline 2 and the exhaust gas pipeline assembly 1 together form an exhaust gas combustion zone 3. The exhaust gas combustion zone 3 provides space for the mixing and combustion of exhaust gas and hydrogen. By forming the exhaust gas combustion zone 3 between the hydrogen pipeline 2 and the exhaust gas pipeline assembly 1, the exhaust gas combustion zone 3 can be connected to both the hydrogen pipeline 2 and the exhaust gas pipeline assembly 1. The exhaust gas injection port is used to inject exhaust gas into the exhaust gas combustion zone 3, and the hydrogen injection port 21 is used to inject hydrogen into the exhaust gas combustion zone 3. The exhaust gas injection port can be configured to be open towards the exhaust gas combustion zone 3, so that the exhaust gas pipeline can be filled with hydrogen through the exhaust gas injection port. The exhaust gas pipeline assembly 1 is connected to the exhaust gas combustion zone 3, allowing the exhaust gas in the exhaust gas pipeline assembly 1 to be injected into the exhaust gas combustion zone 3 through the exhaust gas injection port. At the same time, the hydrogen injection port 21 can be configured to be open towards the exhaust gas combustion zone 3, so that the hydrogen pipeline 2 is connected to the exhaust gas combustion zone 3 through the hydrogen injection port 21, allowing the hydrogen in the hydrogen pipeline 2 to be injected into the exhaust gas combustion zone 3 through the hydrogen injection port 21. This allows the exhaust gas in the exhaust gas pipeline assembly 1 and the hydrogen in the hydrogen pipeline 2 to be mixed and burned in the exhaust gas combustion zone 3, thereby achieving complete combustion of the exhaust gas.

[0027] Furthermore, by setting at least one exhaust gas combustion zone 3, that is, the number of exhaust gas combustion zones 3 can be one, two, three or more, so that the exhaust gas in the exhaust gas pipeline assembly 1 and the hydrogen in the hydrogen pipeline 2 can be mixed and burned simultaneously in at least one exhaust gas combustion zone 3, which can ensure the reliability of the mixed combustion of exhaust gas and hydrogen and improve the reliability of exhaust gas treatment.

[0028] Understandably, mixing hydrogen with exhaust gas and then burning it can achieve complete combustion of the exhaust gas, reducing the emission of gaseous pollutants. Moreover, compared to using natural gas to mix and burn exhaust gas, it can reduce carbon emissions and energy waste. The exhaust gas can be a low-calorific-value gas.

[0029] According to an embodiment of the present invention, the exhaust gas treatment device 100 can transport exhaust gas by setting an exhaust gas pipeline assembly 1 and transport hydrogen by setting a hydrogen pipeline 2. The exhaust gas pipeline assembly 1 can spray exhaust gas into the exhaust gas combustion zone 3 through an exhaust gas injection port, and the hydrogen pipeline 2 can spray hydrogen into the exhaust gas combustion zone 3 through a hydrogen injection port 21, so that the exhaust gas in the exhaust gas pipeline assembly 1 and the hydrogen in the hydrogen pipeline 2 can be mixed and burned in the exhaust gas combustion zone 3, thereby achieving complete combustion of the exhaust gas, reducing the emission of gaseous pollutants, and reducing carbon emissions and energy waste.

[0030] In some embodiments, the exhaust gas duct assembly 1 includes a primary exhaust gas duct 11 and a secondary exhaust gas duct 12. A primary exhaust gas combustion zone 31 is formed between the hydrogen duct 2 and the primary exhaust gas duct 11, and a secondary exhaust gas combustion zone 32 is formed between the hydrogen duct 2 and the secondary exhaust gas duct 12. The primary exhaust gas duct 11 is provided with a primary exhaust gas injection port for injecting exhaust gas into the primary exhaust gas combustion zone 31, the secondary exhaust gas duct 12 is provided with a secondary exhaust gas injection port 121 for injecting exhaust gas into the secondary exhaust gas combustion zone 32, and the hydrogen duct 2 is provided with a primary hydrogen injection port 211 for injecting hydrogen into the primary exhaust gas combustion zone 31 and a secondary hydrogen injection port 212 for injecting hydrogen into the secondary exhaust gas combustion zone 32.

[0031] Specifically, the exhaust gas pipeline assembly 1 is used to transport exhaust gas to the exhaust gas combustion zone 3, and the exhaust gas pipeline assembly 1 includes a primary exhaust gas pipeline 11 and a secondary exhaust gas pipeline 12. That is, the exhaust gas pipeline assembly 1 can transport exhaust gas to the exhaust gas combustion zone 3 through the primary exhaust gas pipeline 11 and the secondary exhaust gas pipeline 12 respectively. A primary exhaust gas combustion zone 31 is formed between the hydrogen pipeline 2 and the primary exhaust gas pipeline 11, and a secondary exhaust gas combustion zone 32 is formed between the hydrogen pipeline 2 and the secondary exhaust gas pipeline 12. That is, the exhaust gas combustion zone 3 includes the primary exhaust gas combustion zone. The primary exhaust gas combustion zone 31 and the secondary exhaust gas combustion zone 32 are formed between the hydrogen pipeline 2 and the primary exhaust gas pipeline 11, so that the hydrogen in the hydrogen pipeline 2 and the exhaust gas in the primary exhaust gas pipeline 11 can be mixed and burned in the primary exhaust gas combustion zone 31. The secondary exhaust gas combustion zone 32 is formed between the hydrogen pipeline 2 and the secondary exhaust gas pipeline 12, so that the hydrogen in the hydrogen pipeline 2 and the exhaust gas in the secondary exhaust gas pipeline 12 can be mixed and burned in the secondary exhaust gas combustion zone 32, which can improve the reliability of complete combustion of exhaust gas.

[0032] Furthermore, the exhaust gas duct assembly 1 is used to transport exhaust gas toward the exhaust gas combustion zone 3 through the exhaust gas injection port, and the primary exhaust gas duct 11 is provided with a primary exhaust gas injection port for injecting exhaust gas into the primary exhaust gas combustion zone 31. The primary exhaust gas injection port is formed in the primary exhaust gas duct 11 so as to connect the primary exhaust gas duct 11 and the primary exhaust gas combustion zone 31 through the primary exhaust gas injection port, so that the exhaust gas in the primary exhaust gas duct 11 can be transported to the primary exhaust gas combustion zone 31 through the primary exhaust gas injection port. At the same time, the secondary exhaust gas duct 12 is provided with a secondary exhaust gas injection port 121 for injecting exhaust gas into the secondary exhaust gas combustion zone 32. The secondary exhaust gas injection port 121 is formed in the secondary exhaust gas duct 12 so as to connect the secondary exhaust gas duct 12 and the secondary exhaust gas combustion zone 32 through the secondary exhaust gas injection port 121, so that the exhaust gas in the secondary exhaust gas duct 12 can be transported to the secondary exhaust gas combustion zone 32 through the secondary exhaust gas injection port 121.

[0033] Furthermore, the hydrogen pipeline 2 is used to transport hydrogen towards the exhaust gas combustion zone 3 through the hydrogen injection port 21, and the hydrogen pipeline 2 is provided with a primary hydrogen injection port 211 that injects hydrogen towards the primary exhaust gas combustion zone 31. The primary hydrogen injection port 211 can be formed in the hydrogen pipeline 2 to connect the hydrogen pipeline 2 and the primary exhaust gas combustion zone 31, allowing hydrogen in the hydrogen pipeline 2 to be transported to the primary exhaust gas combustion zone 31 through the primary hydrogen injection port 211. Simultaneously, the hydrogen pipeline 2 is also provided with a direction towards the secondary exhaust gas combustion zone 3. The secondary hydrogen injection port 212 is formed in the hydrogen pipeline 2 to connect the hydrogen pipeline 2 and the secondary exhaust gas combustion zone 32. This allows the hydrogen in the hydrogen pipeline 2 to be transported to the secondary exhaust gas combustion zone 32 through the secondary hydrogen injection port 212. As a result, the exhaust gas in the primary exhaust gas pipeline 11 and the exhaust gas in the secondary exhaust gas pipeline 12 can be mixed and burned with hydrogen in the primary exhaust gas combustion zone 31 and the secondary exhaust gas combustion zone 32, respectively, thus achieving complete combustion of the exhaust gas.

[0034] In some embodiments, the hydrogen pipeline 2, the primary exhaust gas pipeline 11, and the secondary exhaust gas pipeline 12 are arranged sequentially from the inside to the outside in a radial direction; wherein the hydrogen pipeline 2 and the primary exhaust gas pipeline 11 are radially spaced apart and the primary exhaust gas combustion region 31 is located between the hydrogen pipeline 2 and the primary exhaust gas pipeline 11; and / or, the end of the secondary exhaust gas pipeline 12 protrudes beyond the end of the hydrogen pipeline 2, so that the secondary exhaust gas combustion region 32 is located inside the secondary exhaust gas pipeline 12 and in the direction of extension of the end of the hydrogen pipeline 2.

[0035] Specifically, the hydrogen pipeline 2, the primary exhaust gas pipeline 11, and the secondary exhaust gas pipeline 12 are arranged radially from the inside out. The primary exhaust gas pipeline 11 is placed outside the hydrogen pipeline 2 and passes through the inner side of the secondary exhaust gas pipeline 12. In other words, the primary exhaust gas pipeline 11 is placed between the hydrogen pipeline 2 and the secondary exhaust gas pipeline 12, thus achieving a neat arrangement of the hydrogen pipeline 2, the primary exhaust gas pipeline 11, and the secondary exhaust gas pipeline 12.

[0036] The hydrogen pipeline 2 and the primary exhaust gas pipeline 11 are radially spaced apart, meaning there is a certain distance between them. The primary exhaust gas combustion zone 31 is located between the hydrogen pipeline 2 and the primary exhaust gas pipeline 11. By separating the hydrogen pipeline 2 and the primary exhaust gas pipeline 11, space is provided for the primary exhaust gas combustion zone 31, allowing it to simultaneously approach both the hydrogen pipeline 2 and the primary exhaust gas pipeline 11. This facilitates the delivery of hydrogen and exhaust gas from the hydrogen pipeline 2 and the primary exhaust gas pipeline 11, respectively, into the primary exhaust gas combustion zone 31. Consequently, the hydrogen in the hydrogen pipeline 2 and the exhaust gas in the primary exhaust gas pipeline 11 can reliably mix and burn within the primary exhaust gas combustion zone 31.

[0037] Furthermore, by sequentially arranging the hydrogen pipeline 2, the primary exhaust gas pipeline 11, and the secondary exhaust gas pipeline 12 radially from the inside out, the secondary exhaust gas pipeline 12 can be positioned radially outside the hydrogen pipeline 2, with its end protruding beyond the end of the hydrogen pipeline 2. This allows the end of the secondary exhaust gas pipeline 12 to extend beyond the end of the hydrogen pipeline 2, thus eliminating the presence of hydrogen pipeline 2 within a portion of the secondary exhaust gas pipeline 12. Consequently, when the secondary exhaust gas combustion zone 32 is located inside the secondary exhaust gas pipeline 12... When the secondary exhaust gas combustion zone 32 is located in the extension direction of the end of the hydrogen pipeline 2, it can be formed between the secondary exhaust gas pipeline 12 and the hydrogen pipeline 2, so that the secondary exhaust gas combustion zone 32 can move towards both the secondary exhaust gas pipeline 12 and the hydrogen pipeline 2 at the same time, so that the hydrogen pipeline 2 and the secondary exhaust gas pipeline 12 can respectively transport hydrogen and exhaust gas into the secondary exhaust gas combustion zone 32, thereby allowing the hydrogen in the hydrogen pipeline 2 and the exhaust gas in the secondary exhaust gas pipeline 12 to be reliably mixed and burned in the secondary exhaust gas combustion zone 32.

[0038] It should be noted that, in practice, the primary exhaust gas pipeline 11 and the secondary exhaust gas pipeline 12 can also be distributed radially apart to avoid interference between the hydrogen pipeline 2, the primary exhaust gas pipeline 11 and the secondary exhaust gas pipeline 12, thereby improving their respective operational reliability.

[0039] In some embodiments, the primary exhaust gas nozzle is located on the side of the primary exhaust gas pipe 11 facing the hydrogen pipe 2, and the primary hydrogen nozzle 211 is located on the outside of the hydrogen pipe 2, and the primary exhaust gas nozzle and the primary hydrogen nozzle 211 spray gas toward each other.

[0040] Specifically, the primary exhaust gas pipe 11 is fitted outside the hydrogen pipe 2, and the primary exhaust gas combustion zone 31 is located between the primary exhaust gas pipe 11 and the hydrogen pipe 2. The primary exhaust gas injection port is located on the side of the primary exhaust gas pipe 11 facing the hydrogen pipe 2, so that the primary exhaust gas injection port is open towards the primary exhaust gas combustion zone 31, so that the exhaust gas in the primary exhaust gas pipe 11 can be transported into the primary exhaust gas combustion zone 31 through the primary exhaust gas injection port. At the same time, the primary hydrogen injection port 211 is located outside the hydrogen pipe 2, so that the primary hydrogen injection port 211 is open towards the primary exhaust gas combustion zone 31, so that the hydrogen in the hydrogen pipe 2 can be transported into the primary exhaust gas combustion zone 31 through the primary hydrogen injection port 211.

[0041] Furthermore, the primary exhaust gas injection port and the primary hydrogen injection port 211 can spray gases in directions close to each other, that is, the primary exhaust gas injection port can spray exhaust gas towards the primary hydrogen injection port 211, and the primary hydrogen injection port 211 can spray hydrogen towards the primary exhaust gas injection port, which can realize the convection of exhaust gas and hydrogen, thereby promoting the full mixing and combustion of exhaust gas in the primary exhaust gas pipeline 11 and hydrogen in the hydrogen pipeline 2 in the primary exhaust gas combustion zone 31.

[0042] In some embodiments, the primary exhaust gas pipeline 11 includes a gas supply ring pipe 111 and a plurality of primary gas supply pipe bodies 112. The plurality of primary gas supply pipe bodies 112 are distributed around the hydrogen pipeline 2, and the outlet ends of the plurality of primary gas supply pipe bodies 112 are all connected to the gas supply ring pipe 111. The primary exhaust gas injection port is provided on the inner peripheral wall of the gas supply ring pipe 111. The end of the hydrogen pipeline 2 is formed with an outlet protruding ring 22 that protrudes radially outward. The outlet protruding ring 22 is located inside the gas supply ring pipe 111 and is distributed radially opposite each other. The primary hydrogen injection port 211 is provided on the outer peripheral wall of the outlet protruding ring 22.

[0043] Specifically, the primary exhaust gas pipeline 11 is used to transport exhaust gas to the primary exhaust gas combustion zone 31. The primary exhaust gas pipeline 11 includes a gas supply ring pipe 111 and multiple primary gas supply pipe bodies 112. That is, the primary exhaust gas pipeline 11 can transport exhaust gas to the primary exhaust gas combustion zone 31 through multiple primary gas supply pipe bodies 112 and the gas supply ring pipe 111. The outlet ends of multiple primary gas supply pipe bodies 112 are all connected to the gas supply ring pipe 111, so that exhaust gas can enter the gas supply ring pipe 111 from multiple primary gas supply pipe bodies 112 at the same time. The number of primary gas supply pipe bodies 112 can be two, three or more. The multiple primary gas supply pipe bodies 112 are distributed around the hydrogen pipeline 2, so that the multiple primary gas supply pipe bodies 112 are evenly distributed along the circumference of the hydrogen pipeline 2. Then, the primary exhaust gas pipeline 11 can be sleeved on the outside of the hydrogen pipeline 2 through the multiple primary gas supply pipe bodies 112.

[0044] Furthermore, the gas supply ring pipe 111 is ring-shaped, and the primary exhaust gas injection port is located on the inner peripheral wall of the gas supply ring pipe 111. The gas supply ring pipe 111 can be connected to the primary exhaust gas combustion zone 31 through the primary exhaust gas injection port, so that the exhaust gas entering the gas supply ring pipe 111 can be transported to the primary exhaust gas combustion zone 31 through the primary exhaust gas injection port, so as to be fully burned in the primary exhaust gas combustion zone 31.

[0045] In such Figures 1-3 In the embodiment shown, there are six primary gas supply pipes 112, which are distributed around the hydrogen pipeline 2 and connected to the gas supply ring pipe 111 respectively, so that the six primary gas supply pipes 112 can simultaneously supply exhaust gas to the gas supply ring pipe 111, thereby ensuring the reliability of the primary exhaust gas pipeline 11 supplying exhaust gas to the primary exhaust gas combustion zone 31.

[0046] Meanwhile, the hydrogen pipeline 2 can be used to transport hydrogen to the primary exhaust gas combustion zone 31. An outlet protrusion ring 22 is formed at the end of the hydrogen pipeline 2. The outlet protrusion ring 22 is formed at the end of the hydrogen pipeline 2 so that the hydrogen can flow along the extension path of the hydrogen pipeline 2 to the outlet protrusion ring 22. The outlet protrusion ring 22 is constructed in a disc shape. The primary hydrogen injection port 211 is set on the outer peripheral wall of the outlet protrusion ring 22. The outlet protrusion ring 22 can be connected to the primary exhaust gas combustion zone 31 through the primary hydrogen injection port 211. The hydrogen entering the outlet protrusion ring 22 can be transported into the primary exhaust gas combustion zone 31 through the primary hydrogen injection port 211, so that the hydrogen in the hydrogen pipeline 2 and the exhaust gas in the primary exhaust gas pipeline 11 can be mixed and burned in the primary exhaust gas combustion zone 31.

[0047] Furthermore, the outlet protrusion 22 is located inside the supply ring pipe 111 and is radially aligned, allowing the supply ring pipe 111 to be fitted onto the outside of the outlet protrusion 22. With the outlet protrusion 22 and the supply ring pipe 111 radially aligned, the outlet protrusion 22 and the supply ring pipe 111 can be located on opposite sides of the primary exhaust gas combustion zone 31. This allows the hydrogen in the outlet protrusion 22 and the exhaust gas in the supply ring pipe 111 to form convection within the primary exhaust gas combustion zone 31 when they are injected toward it. This facilitates uniform mixing of hydrogen and exhaust gas, improving the reliability of complete combustion of exhaust gas. Moreover, by protruding the outlet protrusion 22 radially outward along the hydrogen pipe 2, the radial dimension of the outlet protrusion 22 can be increased, allowing the primary hydrogen injection port 211 to move closer to the primary exhaust gas injection port, reducing the distance between them and facilitating uniform mixing of hydrogen and exhaust gas.

[0048] In some embodiments, a plurality of primary exhaust gas injection ports are provided, and the plurality of primary exhaust gas injection ports are distributed circumferentially spaced on the inner peripheral wall of the gas supply ring pipe 111; and / or, a plurality of primary hydrogen injection ports 211 are provided, and the plurality of primary hydrogen injection ports 211 are distributed circumferentially spaced on the outer peripheral wall of the gas outlet convex ring 22; and / or, at least a portion of the primary gas supply pipe body 112 is constructed as a Venturi tube 1121.

[0049] Specifically, the primary exhaust gas injection port is used to inject exhaust gas from the primary exhaust gas pipeline 11 into the primary exhaust gas combustion zone 31. Multiple primary exhaust gas injection ports can be configured, i.e., two, three, or more. This allows the exhaust gas from the primary exhaust gas pipeline 11 to be simultaneously injected into the primary exhaust gas combustion zone 31 through multiple primary exhaust gas injection ports, improving the reliability of exhaust gas delivery from the primary exhaust gas pipeline 11 to the primary exhaust gas combustion zone 31. Furthermore, distributing the multiple primary exhaust gas injection ports circumferentially along the inner wall of the gas supply ring pipe 111 ensures a certain distance between each pair of adjacent primary exhaust gas injection ports, preventing interference between them. This allows the exhaust gas from the primary exhaust gas pipeline 11 to be simultaneously injected into the primary exhaust gas combustion zone 31 from multiple locations through multiple primary exhaust gas injection ports, facilitating thorough mixing of the exhaust gas and hydrogen, and ultimately achieving complete combustion of the exhaust gas.

[0050] Simultaneously, the primary hydrogen injection port 211 is used to inject hydrogen from the hydrogen pipeline 2 into the primary exhaust gas combustion zone 31. Multiple primary hydrogen injection ports 211 can be configured, meaning there can be two, three, or more. This allows hydrogen from the hydrogen pipeline 2 to be simultaneously injected into the primary exhaust gas combustion zone 31 through multiple primary hydrogen injection ports 211, improving the reliability of hydrogen delivery from the hydrogen pipeline 2 to the primary exhaust gas combustion zone 31. Furthermore, the multiple primary hydrogen injection ports 211... The outer peripheral wall of the gas convex ring 22 is spaced apart circumferentially, so that multiple primary hydrogen injection ports 211 are sequentially distributed along the circumference of the gas outlet convex ring 22, so that there is a certain distance between each two adjacent primary hydrogen injection ports 211, which can avoid interference between multiple primary hydrogen injection ports 211. In this way, hydrogen in the hydrogen pipeline 2 can be injected into the primary exhaust gas combustion zone 31 from multiple positions through multiple primary hydrogen injection ports 211, which is conducive to the full mixing of hydrogen and exhaust gas, and thus can achieve the full combustion of exhaust gas.

[0051] For example, the number of primary exhaust gas injection ports can be twelve, and the twelve primary exhaust gas injection ports are evenly distributed along the inner peripheral wall of the air supply ring pipe 111, such as... Figure 1 and Figure 5As shown, there are sixteen primary hydrogen injection ports 211, which are evenly distributed along the outer peripheral wall of the outlet convex ring 22. This allows for thorough mixing and combustion of the exhaust gas in the primary exhaust gas pipe 11 and the hydrogen in the hydrogen pipe 2 within the primary exhaust gas combustion zone 31. Furthermore, in practice, the opening size of the primary exhaust gas injection ports and the opening size of the primary hydrogen injection ports 211 can be flexibly set according to specific circumstances and requirements. For example, the inner diameter of the primary exhaust gas injection port can be 5 mm, and the inner diameter of the primary hydrogen injection port 211 can be 8 mm.

[0052] Furthermore, in practice, the flow velocity of exhaust gas is slow while that of hydrogen is fast. By constructing a section or the entire primary gas supply pipe body 112 as a Venturi tube 1121, the inner diameter of the Venturi tube 1121 can be smaller than the inner diameter of other sections on the primary gas supply pipe body 112. This allows the Venturi effect to be utilized to increase the flow velocity of exhaust gas within the primary gas supply pipe body 112, thereby increasing the mixing rate and combustion rate of exhaust gas and hydrogen, and avoiding the waste of hydrogen.

[0053] In some embodiments, the secondary hydrogen injection port 212 is located at the end of the hydrogen pipeline 2 and is open on the end face toward the secondary exhaust gas combustion region 32; and / or, the secondary exhaust gas pipeline 12 includes a plurality of secondary gas supply pipes 122, the plurality of secondary gas supply pipes 122 are distributed around the primary exhaust gas pipeline 11, and the secondary exhaust gas injection port 121 is located at the end of the secondary gas supply pipe 122 and is configured to inject gas toward the secondary exhaust gas combustion region 32 in a radially inwardly inclined manner.

[0054] Specifically, the secondary exhaust gas combustion zone 32 is located inside the secondary exhaust gas pipe 12 and extends towards the end of the hydrogen pipe 2. The secondary hydrogen injection port 212 is located at the end of the hydrogen pipe 2, which means that the secondary hydrogen injection port 212 is located on the end face of the hydrogen pipe 2 facing the secondary exhaust gas combustion zone 32. The secondary hydrogen injection port 212 is open on the end face of the hydrogen pipe 2 facing the secondary exhaust gas combustion zone 32, so that the secondary hydrogen injection port 212 can connect the hydrogen pipe 2 and the secondary exhaust gas combustion zone 32. In this way, the hydrogen in the hydrogen pipe 2 can be injected towards the secondary exhaust gas combustion zone 32 through the secondary hydrogen injection port 212 to mix and burn with the exhaust gas in the secondary exhaust gas combustion zone 32.

[0055] Furthermore, the secondary exhaust gas pipeline 12 is used to transport exhaust gas into the secondary exhaust gas combustion zone 32, and the secondary exhaust gas pipeline 12 includes multiple secondary gas supply pipes 122. That is, the secondary exhaust gas pipeline 12 can simultaneously transport exhaust gas into the secondary exhaust gas combustion zone 32 through multiple secondary gas supply pipes 122. By distributing the multiple secondary gas supply pipes 122 around the primary exhaust gas pipeline 11, the multiple secondary gas supply pipes 122 can be evenly distributed along the circumference of the hydrogen pipeline 2, thereby allowing the secondary exhaust gas pipeline 122 to transport exhaust gas into the secondary exhaust gas combustion zone 32 through the multiple secondary gas supply pipes 122. Two sets are installed on the outside of the primary exhaust gas pipe 11, and the secondary exhaust gas injection port 121 is installed at the end of the secondary gas supply pipe 122 and is set to be radially inward. The secondary exhaust gas injection port 121 is set towards the secondary exhaust gas combustion zone 32. Then, the exhaust gas in the secondary gas supply pipe 122 can be injected into the secondary exhaust gas combustion zone 32 through the secondary exhaust gas injection port 121, so as to achieve full mixing and combustion of hydrogen in hydrogen pipe 2 and exhaust gas in secondary exhaust gas pipe 12 in the secondary exhaust gas combustion zone 32.

[0056] For example, there can be eight secondary gas supply pipes 122, and the eight secondary gas supply pipes 122 are distributed around the primary exhaust gas pipe 11, so that the eight secondary gas supply pipes 122 can simultaneously deliver exhaust gas to the secondary exhaust gas combustion zone 32, thereby ensuring the reliability of the secondary exhaust gas pipe 12 delivering exhaust gas to the secondary exhaust gas combustion zone 32.

[0057] It should be noted that, as Figure 1 As shown, at least a portion of the secondary gas supply pipe body 122 can be constructed as a second Venturi tube 1221, which means that the inner diameter of the second Venturi tube 1221 is smaller than the inner diameter of other portions of the secondary gas supply pipe body 122. This allows the Venturi effect to be utilized to increase the flow velocity of the exhaust gas in the secondary gas supply pipe body 122, thereby increasing the mixing rate and combustion rate of the exhaust gas and hydrogen, and avoiding the waste of hydrogen.

[0058] In some embodiments, the end face of the secondary gas supply pipe 122 is configured as an inclined end face 1222, which is inclined from the inside to the outside along the extension direction of the secondary gas supply pipe 122, and the secondary exhaust gas injection port 121 is open toward the secondary exhaust gas combustion zone 32 in a direction perpendicular to the inclined end face 1222.

[0059] Specifically, the end face of the secondary gas supply pipe 122 is constructed as an inclined end face 1222, which means that the end face of the secondary gas supply pipe 122 is inclined relative to the axial direction of the secondary gas supply pipe 122. The inclined end face 1222 is set to be inclined from the inside to the outside along the extension direction of the secondary gas supply pipe 122, so that the inclined end face 1222 is set towards the inner side of the secondary gas supply pipe 122. The secondary exhaust gas injection port 121 is opened towards the secondary exhaust gas combustion zone 32 in a direction perpendicular to the inclined end face 1222, so that the secondary exhaust gas injection port 121 can be opened towards the secondary exhaust gas combustion zone 32. In this way, the secondary exhaust gas injection port 121 can connect the secondary gas supply pipe 122 and the secondary exhaust gas combustion zone 32 to transport the exhaust gas in the secondary gas supply pipe 122 to the secondary exhaust gas combustion zone 32.

[0060] In some embodiments, there are multiple secondary hydrogen injection ports 212, and the multiple secondary hydrogen injection ports 212 are distributed sequentially along the circumferential direction of the end of the hydrogen pipeline 2; and / or, there are multiple groups of secondary hydrogen injection ports 212, and the multiple groups of secondary hydrogen injection ports 212 are distributed sequentially along the radial direction of the end of the hydrogen pipeline 2.

[0061] Specifically, the secondary hydrogen injection port 212 is used to inject hydrogen from the hydrogen pipeline 2 into the secondary exhaust gas combustion zone 32. Multiple secondary hydrogen injection ports 212 can be configured, meaning there can be two, three, or more. This allows hydrogen from the hydrogen pipeline 2 to be simultaneously injected into the secondary exhaust gas combustion zone 32 through multiple secondary hydrogen injection ports 212, improving the reliability of hydrogen delivery from the hydrogen pipeline 2 to the secondary exhaust gas combustion zone 32. Furthermore, the multiple secondary hydrogen injection ports 212 along... The hydrogen pipeline 2 is circumferentially distributed at its ends, so that multiple secondary hydrogen injection ports 212 are spaced apart along the circumference of the ends of the hydrogen pipeline 2. This ensures that there is a certain distance between each two adjacent secondary hydrogen injection ports 212, which can avoid interference between the multiple secondary hydrogen injection ports 212. As a result, the hydrogen in the hydrogen pipeline 2 can be injected into the secondary exhaust gas combustion zone 32 from multiple positions through multiple secondary hydrogen injection ports 212, which is conducive to the full mixing of hydrogen and exhaust gas, and thus can achieve the full combustion of exhaust gas.

[0062] Furthermore, the secondary hydrogen injection ports 212 can be configured in multiple groups, that is, two, three, or more groups of secondary hydrogen injection ports 212, and the number of secondary hydrogen injection ports 212 in each group can be multiple. This allows hydrogen in the hydrogen pipeline 2 to be simultaneously injected into the secondary exhaust gas combustion zone 32 through multiple groups of secondary hydrogen injection ports 212. The multiple groups of secondary hydrogen injection ports 212 are arranged radially along the end of the hydrogen pipeline 2, which means that the multiple groups of secondary hydrogen injection ports 212 are arranged radially spaced along the end of the hydrogen pipeline 2, so that there is a certain distance between each pair of adjacent groups of secondary hydrogen injection ports 212. This can avoid interference between the multiple groups of secondary hydrogen injection ports 212, and thus allow hydrogen in the hydrogen pipeline 2 to be simultaneously injected into the secondary exhaust gas combustion zone 32 from multiple positions through multiple groups of secondary hydrogen injection ports 212. This is conducive to the full mixing of hydrogen and exhaust gas, thereby achieving complete combustion of exhaust gas.

[0063] In such Figure 1 and Figure 4 In the illustrated embodiment, there are two sets of secondary hydrogen injection ports 212, and the two sets of secondary hydrogen injection ports 212 are distributed radially along the end of the hydrogen pipeline 2. This can improve the reliability of hydrogen delivery from the hydrogen pipeline 2 to the secondary exhaust gas combustion zone 32. Moreover, in practice, the number and opening size of each set of secondary hydrogen injection ports 212 can be flexibly set according to specific circumstances and needs. For example, there can be eight secondary hydrogen injection ports 212 located on the radially outer side of the end of the hydrogen pipeline 2 with an inner diameter of 15 mm, and twenty-four secondary hydrogen injection ports 212 located on the radially inner side of the end of the hydrogen pipeline 2 with an inner diameter of 5 mm, etc.

[0064] It is understandable that by sequentially arranging the hydrogen pipeline 2, the primary exhaust gas pipeline 11, and the secondary exhaust gas pipeline 12 radially from the inside out, the hydrogen pipeline 2 can be positioned at the center to act as a central flare. When the hydrogen pipeline 2 injects hydrogen through the primary hydrogen injection port 211 and the secondary hydrogen injection port 212, the exhaust gases injected from the primary exhaust gas pipeline 11 and the secondary exhaust gas pipeline 12 can be ignited simultaneously. Moreover, since the primary exhaust gas pipeline 11 is located between the hydrogen pipeline 2 and the secondary exhaust gas pipeline 12, the exhaust gas injected from the primary exhaust gas pipeline 11 can also release heat when burning in the primary exhaust gas combustion zone 31, igniting the exhaust gas injected from the secondary exhaust gas pipeline 12. This can save hydrogen consumption and achieve energy saving and consumption reduction.

[0065] In some embodiments, the exhaust gas treatment device 100 further includes an external channel 4, in which the exhaust gas pipeline assembly 1 and the hydrogen pipeline 2 are both located. The end of the external channel 4 is connected to a baffle 5, which is configured to extend obliquely from the inside to the outside along the gas guiding direction of the exhaust gas pipeline assembly 1 or the hydrogen pipeline 2.

[0066] Specifically, the external channel 4 serves as the outer shell structure of the exhaust gas treatment device 100, providing space for the exhaust gas pipeline assembly 1 and the hydrogen pipeline 2. Both the exhaust gas pipeline assembly 1 and the hydrogen pipeline 2 can be installed and protected within the external channel 4. Furthermore, the exhaust gas pipeline assembly 1 and the hydrogen pipeline 2 can jointly form the exhaust gas combustion zone 3 within the external channel 4, achieving thorough mixing and combustion of exhaust gas and hydrogen. Simultaneously, a baffle 5 is connected to the end of the external channel 4, extending the external channel 4 and obstructing the airflow within it. When the airflow impacts the baffle 5 during its flow, a vortex is formed at the baffle 5, promoting thorough mixing of exhaust gas and hydrogen, thereby improving the combustion efficiency of the exhaust gas.

[0067] Furthermore, by constructing the baffle 5 to extend obliquely from the inside to the outside along the gas guiding direction of the exhaust gas duct assembly 1 or the hydrogen duct 2, the installation length of the baffle 5 can be increased to improve the reliability of the baffle 5 in blocking the airflow. Moreover, the inner diameter of the baffle 5 gradually increases from the end connected to the external channel 4 toward the other end, so that the baffle 5 can form a flared shape, which is conducive to the discharge of the gas after combustion and the replenishment of external air, thereby facilitating the complete combustion of the exhaust gas.

[0068] It should be noted that, in practice, the waste gas treatment device 100 of the present invention can also be used as a combustion burner in other equipment, etc.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0070] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A waste gas treatment device, characterized in that, include: An exhaust gas duct assembly (1) is provided with an exhaust gas injection port. A hydrogen pipeline (2) is provided, wherein a hydrogen injection port (21) is formed thereon, and the hydrogen pipeline (2) and the exhaust gas pipeline assembly (1) together form at least one exhaust gas combustion zone (3). The exhaust gas injection port is used to inject exhaust gas into the exhaust gas combustion zone (3) and the hydrogen injection port (21) is used to inject hydrogen into the exhaust gas combustion zone (3) so that the exhaust gas and hydrogen are mixed and burned in the exhaust gas combustion zone (3).

2. The waste gas treatment device according to claim 1, characterized in that, The exhaust gas pipeline assembly (1) includes a primary exhaust gas pipeline (11) and a secondary exhaust gas pipeline (12). A primary exhaust gas combustion zone (31) is formed between the hydrogen pipeline (2) and the primary exhaust gas pipeline (11), and a secondary exhaust gas combustion zone (32) is formed between the hydrogen pipeline (2) and the secondary exhaust gas pipeline (12). The primary exhaust gas pipeline (11) is provided with a primary exhaust gas injection port for injecting exhaust gas into the primary exhaust gas combustion zone (31), the secondary exhaust gas pipeline (12) is provided with a secondary exhaust gas injection port (121) for injecting exhaust gas into the secondary exhaust gas combustion zone (32), and the hydrogen pipeline (2) is provided with a primary hydrogen injection port (211) for injecting hydrogen into the primary exhaust gas combustion zone (31) and a secondary hydrogen injection port (212) for injecting hydrogen into the secondary exhaust gas combustion zone (32).

3. The waste gas treatment device according to claim 2, characterized in that, The hydrogen pipeline (2), the primary exhaust gas pipeline (11), and the secondary exhaust gas pipeline (12) are arranged in a radial pattern from the inside to the outside. The hydrogen pipeline (2) and the primary exhaust gas pipeline (11) are radially spaced apart, and the primary exhaust gas combustion zone (31) is located between the hydrogen pipeline (2) and the primary exhaust gas pipeline (11). And / or, the end of the secondary exhaust gas duct (12) protrudes beyond the end of the hydrogen duct (2) so that the secondary exhaust gas combustion zone (32) is located inside the secondary exhaust gas duct (12) and in the direction of the end extension of the hydrogen duct (2).

4. The waste gas treatment device according to claim 3, characterized in that, The primary exhaust gas nozzle is located on the side of the primary exhaust gas pipe (11) facing the hydrogen pipe (2), and the primary hydrogen nozzle (211) is located on the outside of the hydrogen pipe (2), so that the primary exhaust gas nozzle and the primary hydrogen nozzle (211) spray gas toward each other.

5. The waste gas treatment device according to claim 4, characterized in that, The primary exhaust gas pipeline (11) includes an air supply ring pipe (111) and multiple primary air supply pipe bodies (112). The multiple primary air supply pipe bodies (112) are distributed around the hydrogen pipeline (2), and the outlet ends of the multiple primary air supply pipe bodies (112) are all connected to the air supply ring pipe (111). The primary exhaust gas injection port is located on the inner peripheral wall of the air supply ring pipe (111). The hydrogen pipeline (2) has an outlet convex ring (22) that protrudes outward in the radial direction at its end. The outlet convex ring (22) is located inside the gas supply ring pipe (111) and is distributed radially opposite each other. The first-stage hydrogen injection port (211) is located on the outer peripheral wall of the outlet convex ring (22).

6. The waste gas treatment device according to claim 5, characterized in that, The primary exhaust gas injection port is configured to be multiple, and the multiple primary exhaust gas injection ports are distributed circumferentially at intervals on the inner peripheral wall of the air supply ring pipe (111). And / or, the primary hydrogen injection port (211) is provided in multiple ways, and the multiple primary hydrogen injection ports (211) are distributed circumferentially spaced on the outer peripheral wall of the gas outlet convex ring (22); And / or, at least a portion of the primary gas supply pipe body (112) is constructed as a Venturi tube (1121).

7. The waste gas treatment device according to claim 3, characterized in that, The secondary hydrogen injection port (212) is located at the end of the hydrogen pipeline (2) and is open on the end face toward the secondary exhaust gas combustion zone (32); And / or, the secondary exhaust gas duct (12) includes a plurality of secondary gas supply pipes (122), the plurality of secondary gas supply pipes (122) are distributed around the primary exhaust gas duct (11), and the secondary exhaust gas injection port (121) is located at the end of the secondary gas supply pipe (122) and is configured to inject gas into the secondary exhaust gas combustion zone (32) radially inward.

8. The waste gas treatment device according to claim 7, characterized in that, The end face of the secondary gas supply pipe (122) is an inclined end face (1222). The inclined end face (1222) is set to be inclined from the inside to the outside along the extension direction of the secondary gas supply pipe (122). The secondary exhaust gas injection port (121) is opened towards the secondary exhaust gas combustion area (32) in a direction perpendicular to the inclined end face (1222).

9. The waste gas treatment device according to claim 7, characterized in that, There are multiple secondary hydrogen injection ports (212), and the multiple secondary hydrogen injection ports (212) are distributed sequentially along the circumference of the end of the hydrogen pipeline (2); And / or, the secondary hydrogen injection port (212) is in multiple sets, and the multiple sets of the secondary hydrogen injection ports (212) are distributed radially along the end of the hydrogen pipeline (2).

10. The waste gas treatment device according to claim 1, characterized in that, It also includes an external channel (4), in which the exhaust gas pipeline assembly (1) and the hydrogen pipeline (2) are both located, and the end of the external channel (4) is connected to a baffle (5), which is constructed to extend obliquely from the inside to the outside along the gas guiding direction of the exhaust gas pipeline assembly (1) or the hydrogen pipeline (2).

Images