A new type of ultra-adiabatic pure oxygen combustor

Abstract

The application discloses a novel super-adiabatic pure oxygen burner, which has a burner shell, a combustion channel is arranged in the burner shell, the combustion channel is divided into multiple combustion blocks, multiple small-power burners are arranged in the combustion blocks, the combustion channel port is provided with a super-adiabatic combustion reaction disc group with a multilayer structure, an adjusting assembly for adjusting the distance between the super-adiabatic combustion reaction disc group and the combustion channel port is arranged on the burner shell, the combustion channel port is provided with a telescopic adjusting gas guide pipe group abutting against the super-adiabatic combustion reaction disc group, the burner adopts a block combustion mode, has a wider power adjusting range, and can be flexibly adjusted according to actual requirements, the distance between the super-adiabatic combustion reaction disc group and the small-power burners can be automatically adjusted through the driving of a micro motor, the telescopic pipe is arranged by adjusting the distance to gather the fuel gas and the oxygen, and the flame is limited to the surface or the inside of the super-adiabatic combustion reaction disc, so that the stability and the safety of the burner are improved.

Description

Technical Field

[0001] This invention relates to the field of ultra-insulated pure oxygen combustion, and specifically to a novel ultra-insulated pure oxygen burner. Background Technology

[0002] Currently, most burners use air combustion, but air contains a large amount of nitrogen, which easily produces a large amount of nitrogen oxides (NOx), causing environmental pollution. Using pure oxygen combustion can effectively reduce NOx production and improve combustion efficiency. Under pure oxygen combustion, the combustion reaction is more complete, more heat is generated, and the temperature rises. According to the Stefan-Boltzmann law, the increased radiative heat flux generated by pure oxygen combustion, and the fact that no N2 participates in the reaction, with products mainly being oxides such as H2O and CO2, will also improve its spectral dependence and consequently increase the radiation intensity.

[0003] Existing pure oxygen burners can usually only operate at a fixed power, and their ability to adapt to load changes is weak. They are prone to problems such as unstable combustion or overheating, which can easily lead to waste of fuel and oxygen. In addition, the pure oxygen combustion condition has a certain destructive effect on the burner and furnace wall tubes of the heating furnace. Furthermore, the existing pure oxygen burners lack heat diffusion and conduction, which makes the burner and heating furnace prone to problems such as thermal expansion, thermal deformation and thermal fatigue. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a novel ultra-insulated pure oxygen burner, comprising a burner housing, a combustion channel within the burner housing, the combustion channel being divided into multiple combustion blocks, multiple low-power burners distributed within the combustion blocks, an ultra-insulated combustion reaction disk assembly with a multi-layer structure being provided at the combustion channel port, an adjustment component for adjusting the distance between the ultra-insulated combustion reaction disk assembly and the combustion channel port being installed on the burner housing, and a retractable and adjustable gas guide pipe assembly being provided at the combustion channel port to abut against the ultra-insulated combustion reaction disk assembly.

[0005] Furthermore, the adjustment assembly includes multiple support rods slidably connected to the side wall of the burner housing. The multiple support rods are arranged parallel to the axis of the burner housing and have a threaded section at one end near the combustion channel port, with an assembly top plate fixed at the end. An assembly bottom plate is threaded onto the threaded section. An insulated combustion disc assembly is embedded between the assembly top plate and the assembly bottom plate. The other end of the support rod is rotatably connected to a movable plate below the burner housing. A drive assembly is installed on the movable plate to drive the support rod to rotate and slide, thereby driving the insulated combustion disc assembly to move.

[0006] Furthermore, the gas guide pipe assembly includes a drive pipe rotatably connected to the combustion chamber port. The drive pipe has an internal thread, and a telescopic pipe is threadedly connected to the internal thread portion of the drive pipe. A guide plate is fixed at the top of the telescopic pipe, and the guide plate is sleeved on a support rod. A gear A is fixed on the outer shaft of the drive pipe. A rotating cylinder is sleeved on any one of the support rods, and a gear B that meshes with gear A is fixed on the rotating cylinder. A handwheel is fixed on the outer periphery of the bottom end of the rotating cylinder, and the handwheel is coaxially sleeved on the support rod.

[0007] Furthermore, the drive assembly includes a micro motor fixed to the movable plate. The output end of the micro motor is arranged parallel to the support rod and fixedly connected to a long gear C. The drive assembly also includes a gear D fixed to the outer periphery of the support rod. The long gear C meshes with the gear D. The drive assembly also includes an electric push rod connected to the movable plate. The extension and retraction of the electric push rod can drive the movable plate to move along the axis of the support rod.

[0008] Furthermore, the low-power burner includes a gas pipeline and an oxygen pipeline arranged coaxially. The gas pipeline is sleeved inside the oxygen pipeline. The gas pipeline is connected to the main gas pipeline through a gas jacket to obtain fuel. The oxygen pipeline is connected to the main oxygen pipeline through a gas jacket to obtain oxygen. The end of the low-power burner is provided with a baffle with multiple nozzles.

[0009] Furthermore, the ultra-insulated combustion reaction disk assembly includes multiple layers of ultra-insulated combustion reaction disks made of different materials, with different pore shapes and pore sizes. The ultra-insulated combustion reaction disks are made of high-temperature and corrosion-resistant materials and have a porous structure.

[0010] Furthermore, the nozzles on the baffle include oxygen nozzles corresponding to the oxygen pipeline and gas nozzles corresponding to the gas pipeline, with the gas nozzle structure being a Venturi structure.

[0011] Furthermore, the gas reservoir pipe is connected to a micro-adjustment valve and a pressure gauge, with the pressure gauge located at the end of the corresponding gas reservoir pipe near the low-power burner.

[0012] Furthermore, the gas main pipe and oxygen main pipe are sequentially equipped with an emergency shut-off valve, a filter, a pressure regulating valve, a micro-regulating valve, a gas flow meter, and a pressure transmitter along the airflow direction.

[0013] Furthermore, both the gas pipeline and the oxygen pipeline are equipped with automatic regulating electrical control devices. These devices can control the valve opening and implement proportional regulation and linkage control of the gas pressure and oxygen in the burner.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. The novel ultra-insulated pure oxygen burner provided by this invention adopts a segmented combustion method, which has a wider power adjustment range and can be flexibly adjusted according to actual needs to meet different process requirements and load changes. It automatically adjusts the combustion power according to actual load requirements, avoiding unnecessary energy waste and thus improving combustion efficiency. An ultra-insulated combustion reaction disk assembly is added to the burner port to concentrate the fuel gas and oxygen, confining the flame to the surface or interior of the ultra-insulated combustion reaction disk, absorbing a large amount of flame heat, preventing heat diffusion, and transferring energy through thermal radiation.

[0016] 2. The novel ultra-insulated pure oxygen burner provided by this invention adds an ultra-insulated combustion reaction disk assembly to the burner port. The ultra-insulated combustion reaction disk has a porous structure to disperse the flame, thereby reducing the concentrated temperature of the flame. The composition, number of layers, and structure of the ultra-insulated combustion reaction disk can be adaptively adjusted according to specific operating conditions, providing a range for burner power adjustment. The distance between the ultra-insulated combustion reaction disk assembly and the low-power burner can be automatically adjusted by a micro motor drive. It can confine flames of different lengths to the surface or interior of the ultra-insulated combustion reaction disk for combustion, absorb a large amount of flame heat, prevent heat diffusion, and transfer energy through thermal radiation conduction, playing a guiding role in heat diffusion and conduction, further optimizing the burner's performance and improving its stability and safety.

[0017] 3. The novel ultra-insulated pure oxygen burner provided by this invention features multiple independent burners that alternate combustion, preventing continuous heat flow from scouring the furnace tube at the same point. This effectively increases the lifespan of the burner and the heating furnace. Its combustion method is ultra-insulated pure oxygen combustion, with no N2 involved in the reaction. The pure oxygen combustion speed is fast, the fuel combustion is complete, and there is virtually no NOx or CO. e produce.

[0018] 4. The novel ultra-insulated pure oxygen burner provided by this invention has a telescopic tube that can enhance radiation and store the radiated heat inside the telescopic tube. This allows the heat to be used as much as possible to heat the materials and the fuel and oxidant upstream of the reaction zone, reducing the heat in the flue gas. This enhances the combustion reaction, improves combustion efficiency, and reduces heat waste. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 for Figure 1 Schematic diagram of small and medium power burners;

[0021] Figure 3 A schematic diagram of the modular burner distribution when the burner shell is cylindrical;

[0022] Figure 4A schematic diagram showing the block-shaped burner distribution when the burner housing is square.

[0023] Figure 5 Top view of the superinsulated combustion reaction disk;

[0024] Figure 6 A schematic diagram of a super-insulated combustion reaction disk with straight holes;

[0025] Figure 7 This is a schematic diagram of a super-insulated combustion reaction disk with a conical orifice structure.

[0026] Figure 8 Schematic diagram of a super-insulated combustion reaction disk with a Venturi aperture structure;

[0027] Figure 9 Schematic diagram of a super-insulated combustion reaction disk with stepped holes;

[0028] Figure 10 Schematic diagram of a super-insulated combustion reaction disk made of high-alumina ceramic spheres;

[0029] Figure 11 This is a schematic diagram showing that the ultra-insulated combustion reaction disk is made of porous silicon carbide ceramic.

[0030] Figure 12 This is a schematic diagram of the valve structure of the present invention.

[0031] The reference numerals in the attached drawings are explained as follows: 1. Burner housing; 101. Combustion channel; 2. Insulating lining; 3. Zone fireproof plate; 4. Low-power burner; 401. Oxygen pipeline; 402. Gas pipeline; 5. Ultra-insulated combustion reaction plate assembly; 6. Gas housing pipe; 7. Gas main pipe; 8. Oxygen main pipe; 9. Baffle; 10. Emergency shut-off valve; 11. Filter; 12. Pressure regulating valve; 13. Micro-regulating valve; 14. Gas flow meter; 15. Pressure transmitter; 16. Pressure gauge; 17. Support rod; 1701. Gear D; 18. Assembly top plate; 19. Assembly bottom plate; 20. Insulated combustion plate; 21. Moving plate; 2101. Micro motor; 22. Drive tube; 2201. Gear A; 23. Telescopic tube; 24. Guide plate; 25. Rotary drum; 2501. Gear B; 2502. Handwheel; 26. Long gear C; 27. Electric actuator. Detailed Implementation

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] 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.

[0034] The present invention will be further described below with reference to the accompanying drawings:

[0035] like Figure 1-12 As shown, a modular adjustable combustion power ultra-insulated pure oxygen burner is provided, which includes a burner shell 1, a heat insulation lining 2, a low-power burner 4, a zone fireproof plate 3, an oxygen pipeline 401, a gas pipeline 402, an oxygen main pipe 8, a gas main pipe 7, and a combustion valve assembly. The burner shell 1 is cylindrical or square or other shapes.

[0036] In this embodiment, as Figure 1 , Figure 4The burner housing 1 shown has a combustion channel 101 inside, and a heat insulation lining 2 is embedded in the combustion channel 101. A zone baffle 3 is fixed inside the heat insulation lining 2. The zone baffle 3 can divide the combustion channel 101 into multiple combustion blocks. Preferably, the zone baffle 3 can divide the combustion channel 101 into 2, 3, 4, 5, etc. The zone baffle 3 has no fixed shape and can be adapted to specific design requirements. This zoned combustion enables the burner to have a wide power adjustment range, which can be flexibly adjusted according to actual needs to meet different process requirements and load changes. The combustion power is automatically adjusted according to the actual load demand to avoid unnecessary energy waste, thereby improving combustion efficiency and achieving the goal of energy saving and emission reduction. Preferably, the zone baffle 3 is made of austenitic stainless steel, high alloy heat-resistant stainless steel, or other high-temperature resistant and oxygen corrosion resistant materials. Multiple low-power burners 4 are distributed in the combustion blocks, and the low-power burners 4 are arranged in a specific manner. The small burners are evenly distributed within the burner, with a minimum installation distance between each burner. This disperses the flame, maintains a lower combustion temperature, and prevents mutual interference between the small burners. The ultra-insulated pure oxygen burner eliminates the need for a dedicated continuous lamp, as each small burner can replace one, reducing manufacturing costs. Each combustion zone can burn independently, alternately, symmetrically, or in its entirety, allowing the burner's combustion power to be adjusted according to specific power requirements. This modular combustion effectively solves the problem of the burner operating at high temperatures for extended periods, mitigating the high-temperature oxygen-enriched erosion damage to the small burners. Assuming a single burner has a power of 100kW, only 10 burners need to be activated to achieve a 1MW power output. The burner's combustion power is adjustable, with multiple independent burners alternating to prevent continuous heat flow from scouring the furnace tubes at the same point, effectively increasing the lifespan of both the burner and the furnace.

[0037] In this embodiment, as Figure 1 , Figure 3 , Figure 4 , Figure 5-11 The combustion chamber 101 port shown is equipped with a multi-layered super-insulated combustion disc assembly. An adjustment component is installed on the burner housing 1 to adjust the distance between the super-insulated combustion reaction disc assembly 5 and the combustion chamber 101 port. The combustion chamber 101 port is provided with a retractable and adjustable gas guide pipe assembly that keeps in contact with the super-insulated combustion reaction disc assembly 5. Adjusting the distance between the super-insulated combustion reaction disc assembly 5 and the combustion chamber 101 port allows the super-insulated combustion reaction disc assembly 5 to concentrate the combustion gas and oxygen, confining the flame to the surface or inside of the super-insulated combustion reaction disc, absorbing a large amount of flame heat, preventing heat diffusion, and transferring energy through thermal radiation conduction.

[0038] In this embodiment, as Figure 1The adjustment assembly shown includes multiple support rods 17 slidably connected to the side wall of the burner housing. Each support rod 17 is parallel to the axis of the burner housing 1 and has a threaded section at one end near the burner port. An assembly top plate 18 is fixed to the end of each threaded section. An assembly bottom plate 19 is threadedly connected to the threaded section. Rotation of the support rods 17 can drive the assembly bottom plate 19 to move. An insulated combustion disc assembly is embedded between the assembly top plate 18 and the assembly bottom plate 19. Preferably, both the assembly top plate 18 and the assembly bottom plate 19 have slots for embedding the insulated combustion disc assembly. The distance between the assembly bottom plate 19 and the assembly top plate 18 can be adjusted to accommodate insulated combustion disc assemblies of different thicknesses when the assembly bottom plate 19 moves. The other end of each support rod 17 is rotatably connected to a movable plate 21 located below the burner housing 1. The movable plate 21 is equipped with a drive mechanism that rotates and slides the support rods 17, thereby moving the insulated combustion disc assembly. The driving component includes a micro motor 2101 fixed on the movable plate 21. The output end of the micro motor 2101 is parallel to the support rod 17 and fixedly connected to a long gear C26. The driving component also includes a gear D1701 fixed to the outer periphery of the support rod 17. The long gear C26 meshes with the gear D1701. The thickness of the long gear C26 is much larger than its radius. The gear D1701 can maintain meshing with the long gear C26 as the support rod 17 moves along its axial direction. The driving component also includes an electric push rod 27 connected to the movable plate 21. The extension and retraction of the electric push rod 27 can drive the movable plate 21 to move along the axial direction of the support rod 17. The movable plate 21 can drive the support rod 17 to move synchronously, adjusting the distance between the assembly base plate 19 and the assembly top plate 18, which facilitates the adjustment of the number of layers of the ultra-insulated combustion disk 20 in the ultra-insulated combustion reaction disk assembly 5.

[0039] In this embodiment, as Figure 1 The gas guide pipe assembly shown includes a drive pipe 22 rotatably connected to the port of the combustion chamber 101. The drive pipe 22 has an internal thread, and a telescopic pipe 23 is threadedly connected to the internal thread of the drive pipe 22. A guide plate 24 is fixed at the top of the telescopic pipe 23, and the guide plate 24 is sleeved on the support rod 17. A drive gear A2201 is fixed on the outer shaft of the drive pipe 22. A rotating cylinder 25 is sleeved on any one of the support rods 17. A gear B2501 that meshes with the gear A2201 is fixed on the rotating cylinder 25. Rotating the rotating cylinder can drive the drive pipe 22 to rotate through the meshing gears A2201 and B2501. The rotation of the drive pipe 22 can push the telescopic pipe 23 to extend or retract through the internal thread. A handwheel 2502 is fixed on the outer periphery of the bottom end of the rotating cylinder 25, and the handwheel 2502 is coaxially sleeved on the support rod 17.

[0040] In this embodiment, as Figure 1 , Figure 5-11The super-insulated combustion reaction disk assembly 5 comprises multiple layers of super-insulated combustion reaction disks made of different materials and with different pore shapes and pore sizes. The pore diameter, pore shape, and pore size of the multiple layers of super-insulated combustion reaction disks can be adjusted according to the combustion conditions. The number of layers of super-insulated combustion reaction disks in the assembly 5 can also be adjusted according to the combustion conditions. The pore shapes of the super-insulated combustion reaction disks can be straight holes, conical holes, Venturi holes, or stepped holes. Different pore shapes can accelerate or slow down the fuel gas flow rate, thereby lengthening or shortening the flame length and controlling the combustion effect. Preferably, the top layer of the super-insulated combustion reaction disk assembly 5 has a stepped hole structure, and the structures of the remaining super-insulated combustion reaction disks can be changed according to the specific flame length. The super-insulated combustion reaction disks disperse the flame through their porous characteristics, thereby reducing the concentrated temperature of the flame. The reaction plate is made of a high-temperature and corrosion-resistant material with a porous structure. The ultra-insulated combustion reaction plate has a high specific surface area, and its size and shape are determined according to the size of the burner. Preferably, the ultra-insulated combustion reaction plate can be made of porous materials such as high-alumina ceramic balls or silicon carbide porous ceramics. The ultra-insulated combustion reaction plate can also be made of porous ceramics or solids with porous structures based on silicon carbide, silicon nitride, mullite, cordierite, aluminum titanate, alumina, diatomite, zircon, magnesite, etc. It has excellent thermal conductivity, light weight, thermal shock resistance, and high temperature resistance. The ultra-insulated combustion reaction plate has a heat storage function, can reflect temperature, preheat the gas at the burner, and improve combustion efficiency.

[0041] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 The low-power burner 4 shown includes a gas pipeline 402 and an oxygen pipeline 401 arranged coaxially. The gas pipeline 402 is sleeved inside the oxygen pipeline 401. The gas pipeline 402 is connected to the main gas pipeline 7 through a gas envelope pipe 6 to obtain fuel. The oxygen pipeline 401 is connected to the main oxygen pipeline 8 through a gas envelope pipe 6 to obtain oxygen. The end of the low-power burner 4 is provided with a baffle 9 with multiple nozzles. The nozzles can simultaneously provide oxygen and fuel to form ultra-insulated pure oxygen combustion. The ultra-insulated pure oxygen burner uses ultra-insulated pure oxygen combustion, with no N2 participating in the reaction. The pure oxygen combustion speed is fast, the fuel is completely burned, and almost no NOx or COe is produced.

[0042] In this embodiment, as Figure 1 , Figure 2 The nozzles on the baffle 9 shown include oxygen nozzles corresponding to oxygen pipe 401 and gas nozzles corresponding to gas pipe 402. The nozzle structure is a Venturi structure, which has the effect of accelerating gas flow and lengthening the flame.

[0043] In this embodiment, as Figure 1 , Figure 2, Figure 12 The gas tubes shown are connected to a micro-adjustment valve 13 and a pressure gauge 16. The pressure gauge 16 is located at the end of the corresponding gas tube 6 near the low-power burner 4 and is used to monitor and regulate the pressure and flow rate of the gas in the gas tube 6.

[0044] In this embodiment, as Figure 1 , Figure 12 The gas main pipe 7 and oxygen main pipe 8 shown are sequentially equipped with an emergency shut-off valve 10, a filter 11, a pressure regulating valve 12, a micro-regulating valve 13, a gas flow meter 14, and a pressure transmitter 15 along the airflow direction.

[0045] In this embodiment, as Figure 1 , Figure 3 , Figure 4 The fire baffle 3 shown can divide the combustion channel 101 into three, four, five, or six combustion zones.

[0046] In this embodiment, as Figure 2 Both the gas pipeline 402 and the oxygen pipeline 401 shown are equipped with automatic adjustment electrical control devices (not shown in the figure). The automatic adjustment electrical control devices can control the valve opening and implement the linkage control of the gas pressure and oxygen ratio of the burner.

[0047] The working principle of this invention is as follows: Fuel gas and oxygen enter the burner through the gas main pipe 7 and oxygen main pipe 8, respectively. During the process, the fuel gas and oxygen are divided into several parts through the gas envelope pipe 6 and enter the corresponding low-power burners 4. The gas main pipe 7 and oxygen inlet pipe are equipped with an emergency shut-off valve 10, a filter 11, a pressure regulating valve 12, a micro-regulating valve 13, a gas flow meter 14, and a pressure transmitter 15. The intake volume of oxygen and gas is controlled according to the chemical equivalence of oxygen and gas combustion, and the pressure of the two gases is controlled to balance the pressure. The envelope pipe is connected to the micro-regulating valve 13 and a pressure gauge 16. The pressure gauge 16 is set at the end of the corresponding gas envelope pipe 6 near the low-power burner 4 to monitor and regulate the pressure and flow rate of the gas in the gas envelope pipe 6.

[0048] The rotation of the micro motor 2101 causes the support rod 17 to rotate via the meshing long gears C26 and D1701. The mounting base plate 19 on the support rod 17 is driven away from the mounting base plate 19 by the thread until the distance between the mounting base plate 19 and the mounting top plate 18 is sufficient for the installation of ultra-insulated combustion reaction disks of different sizes. After installation, the mounting base plate 19 moves closer to the mounting top plate 18, thereby clamping and fixing the ultra-insulated combustion reaction disk assembly 5.

[0049] When the flame height of the low-power burner 4 is relatively large, the electric actuator 27 pushes the moving plate 21 to move. The moving plate 21 drives the support rod 17 to move. The mounting base plate 19 and mounting top plate 18 on the support rod 17 move synchronously with the support rod 17, thereby driving the ultra-insulated combustion reaction plate assembly 5 to move. This adjusts the distance between the ultra-insulated combustion reaction plate assembly 5 and the combustion channel 101, so that when the burner is working, the flame generated by its low-power burner 4 rises to the surface or inside of the ultra-insulated combustion reaction plate, so that the flame is confined to the surface or inside of the ultra-insulated combustion reaction plate, absorbing a large amount of flame heat, preventing heat diffusion, and transferring energy through heat radiation conduction.

[0050] Rotating the handwheel 2502 drives the rotating drum 25 to rotate. The gear B2501 on the rotating drum 25 drives the gear A2201 to rotate, thereby causing the drive tube 22 to rotate. The rotation of the drive tube 22 can thread the telescopic tube 23 to extend and abut against the super-insulated combustion reaction plate on the mounting base plate 19. The guide plate 24 on the telescopic tube 23 guides the extension of the telescopic tube 23. The telescopic tube 23 allows the flame of the burner to be introduced into the super-insulated combustion reaction plate, and at the same time, it can radiate heat to heat the fuel, avoiding heat waste. During the combustion process, the automatic adjustment electrical control device controls the small power burners 4 in different combustion blocks to burn independently, alternately, symmetrically, or completely. This realizes that the combustion power of the burner can be adjusted according to the specific combustion power requirements. Block combustion effectively solves the problem of the burner being in a high-temperature state for a long time, reduces the high-temperature oxygen-rich ablation damage of the small power burners 4, and the multiple independent burners take turns burning to prevent the heat flow from continuously scouring the furnace tube at the same point, effectively increasing the life of the burner and the heating furnace.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A novel ultra-insulated pure oxygen burner, comprising a burner housing (1), wherein a combustion channel (101) is provided inside the burner housing (1), characterized in that: The combustion chamber (101) is divided into multiple combustion blocks, and multiple low-power burners (4) are distributed in the combustion blocks. The port of the combustion chamber (101) is provided with a multi-layered ultra-insulated combustion reaction disk assembly (5). An adjustment assembly is installed on the burner housing (1) to adjust the distance between the ultra-insulated combustion reaction disk assembly (5) and the port of the combustion chamber (101). The adjustment assembly includes multiple support rods (17) that are slidably connected to the side wall of the burner housing (1). The multiple support rods (17) are arranged parallel to the axis of the burner housing (1). The port of the combustion chamber (101) is provided with a telescopically adjustable gas guide pipe assembly that abuts against the ultra-insulated combustion reaction disk assembly (5). The gas guide pipe assembly includes a drive pipe (22) rotatably connected to the combustion chamber (101) port. The drive pipe (22) has an internal thread. The drive pipe (22) is internally connected to a telescopic pipe (23). A guide plate (24) is fixed at the top of the telescopic pipe (23). The guide plate (24) is sleeved on the support rod (17). A gear A (2201) is fixed on the outer shaft of the drive pipe (22). A rotating cylinder (25) is sleeved on any one of the support rods (17). A gear B (2501) that meshes with the gear A (2201) is fixed on the rotating cylinder (25). A handwheel (2502) is fixed on the outer periphery of the bottom end of the rotating cylinder (25). The handwheel (2502) is coaxially sleeved on the support rod (17). The drive assembly includes a micro motor (2101) fixed on the movable plate (21), and a long gear C (26) is fixedly connected to the output end of the micro motor (2101). The drive assembly also includes a gear D (1701) fixed on the outer periphery of the support rod (17). The long gear C (26) meshes with the gear D (1701). The drive assembly also includes an electric push rod (27) connected to the movable plate (21). The extension and retraction of the electric push rod (27) can drive the movable plate (21) to move along the axis of the support rod (17). The low-power burner (4) includes a gas pipeline (402) and an oxygen pipeline (401) arranged coaxially. The gas pipeline (402) is sleeved inside the oxygen pipeline (401). The gas pipeline (402) is connected to the main gas pipeline (7) through a gas mantle (6) to obtain fuel. The oxygen pipeline (401) is connected to the main oxygen pipeline (8) through a gas mantle (6) to obtain oxygen. The end of the low-power burner (4) is provided with a baffle (9) with multiple nozzles.

2. The novel ultra-insulated pure oxygen burner according to claim 1, characterized in that: Multiple support rods (17) have threaded sections at one end near the combustion channel (101) port and are fixed with an assembly top plate (18). An assembly bottom plate (19) is threaded onto the threaded section. An insulated combustion disc (20) assembly is embedded between the assembly top plate (18) and the assembly bottom plate (19). The other end of the support rod (17) is rotatably connected to a movable plate (21) below the burner housing (1). A drive assembly is installed on the movable plate (21) to drive the support rod (17) to rotate and slide, thereby driving the insulated combustion disc (20) assembly to move.

3. The novel ultra-insulated pure oxygen burner according to claim 1, characterized in that: The super-insulated combustion reaction disk assembly (5) includes multiple layers of super-insulated combustion reaction disks with different materials, pore shapes and pore sizes. The super-insulated combustion reaction disks are made of high-temperature and corrosion-resistant materials and have a porous structure.

4. The novel ultra-insulated pure oxygen burner according to claim 1, characterized in that: The nozzles on the baffle (9) include oxygen nozzles corresponding to the oxygen pipe (401) and gas nozzles corresponding to the gas pipe (402), and the gas nozzles have a Venturi structure.

5. A novel ultra-insulated pure oxygen burner according to claim 1, characterized in that: The gas tube (6) is connected to a micro-adjustment valve (13) and a pressure gauge (16), and the pressure gauge (16) is located at the end of the corresponding gas tube (6) near the low-power burner (4).

6. A novel ultra-insulated pure oxygen burner according to claim 1, characterized in that: The gas main pipe (7) and oxygen main pipe (8) are sequentially equipped with an emergency shut-off valve (10), a filter (11), a pressure regulating valve (12), a micro-regulating valve (13), a gas flow meter (14), and a pressure transmitter (15) along the airflow direction.

7. A novel ultra-insulated pure oxygen burner according to claim 1, characterized in that: Both the gas pipeline (402) and the oxygen pipeline (401) are equipped with automatic adjustment electrical control devices. The automatic adjustment electrical control devices can control the valve opening and implement the ratio adjustment and linkage control of gas and oxygen in the burner.

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