A plasma ignition combustion aid system for oxygen-assisted W-flame boilers

Abstract

This invention relates to the field of plasma ignition and combustion assistance technology, and particularly to a plasma ignition and combustion assistance system for oxygen-assisted combustion in a W-flame boiler. The system includes a combustion assist body and an external pipe. The external pipe is located on the side of the combustion assist body, and three sets of air inlets are located on the exterior of the combustion assist body. A base plate is located at the bottom of the combustion assist body, and a mounting base is located at the bottom of the base plate. A threaded post is located at the bottom of the base plate, and a threaded rod is located on the side of the base plate. This plasma ignition and combustion assistance system for oxygen-assisted combustion in a W-flame boiler achieves a threaded connection between the base plate and the mounting base by installing a threaded post and a locking nut at the bottom of the base plate, and simultaneously threading the threaded rod through a sleeve. The base plate and the mounting base are then connected by sequentially tightening the locking nut and the locking nut. Finally, fasteners are used to install the mounting plate on the exterior of the boiler. This installation method eliminates the need for professional personnel and is convenient during use.

Description

Technical Field

[0001] This invention relates to the field of plasma ignition and combustion technology, and in particular to a plasma ignition and combustion system for oxygen-assisted combustion in a W-flame boiler. Background Technology

[0002] The W-flame boiler oxygen-assisted plasma ignition combustion system is a combination of plasma ignition technology and oxygen-assisted combustion scheme. It is mainly used for the stable combustion of low volatile coal types such as anthracite. The system ignites pulverized coal at high temperature through plasma and introduces an oxygen-rich environment to enhance combustion efficiency. It is particularly suitable for high ash and low volatile anthracite.

[0003] The plasma ignition booster for oxygen-assisted W-flame boilers currently on the market has the following problems when in use: The existing plasma ignition booster for oxygen-assisted W-flame boilers usually requires the booster body to be installed outside the boiler and various installation structures to be used. However, the installation process is not only complicated, but also requires professional work, resulting in low installation efficiency and inconvenience during use. In most W-flame boiler oxygen-assisted plasma ignition boosters, the pipe at the end of the booster body is often installed inside the boiler, and the joint is sealed with a threaded connection. However, after long-term use, the sealing structure may loosen, resulting in incomplete combustion inside. Therefore, the external sealing effect is weak during application. Summary of the Invention

[0004] The purpose of this invention is to provide a plasma ignition combustion-assisted system for oxygen-added W-flame boilers, in order to solve the technical problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the specific contents of the present invention are as follows: This invention provides a plasma ignition combustion-assisted system for oxygen-added W-flame boilers, comprising a combustion-assisted body and an external pipe. The external pipe is located on the side of the combustion-assisted body, and an air inlet pipe is located on the outside of the combustion-assisted body. There are three sets of air inlet pipes. A base plate is located at the bottom of the combustion-assisted body, and a mounting seat is located at the bottom of the base plate. A threaded post is located at the bottom of the base plate, and a threaded rod is located on the side of the base plate. A through hole is opened inside the mounting seat, and the threaded post passes through the through hole. A locking nut is threaded to the bottom of the threaded post. A sleeve is located on the outside of the mounting seat, and the threaded rod passes through the sleeve. A fastening nut is threaded to the outside of the threaded rod. A diagonal brace is located on the outside of the mounting seat, and the diagonal brace is symmetrically distributed. A mounting plate is located on the outside of the mounting seat, and a mounting hole is opened inside the mounting plate.

[0006] Furthermore, an inner pipe is provided on the side of the outer pipe, and a first ring and a second ring are provided outside the outer pipe and the inner pipe. The first ring is connected to the second ring through a rotating shaft. A plate is provided on the outside of the first ring and the second ring. A threaded pipe passes through the inside of the plate, and a wing nut is threaded to the outside of the threaded pipe. A fixing plate is provided on the outside of the first ring and the second ring. The fixing plates are symmetrically distributed. A metal frame is connected to one side of the fixing plate through a rotating shaft. A magnetic frame is provided on the side of the other set of fixing plates. The magnetic frame attracts the metal frame by magnetic force. A fixing bracket is provided on the outside of the magnetic frame and the metal frame. A fastening screw is installed inside the fixing bracket.

[0007] Furthermore, the base plate has a connecting block on its side, the connecting block has a side plate on its side, and the bottom of the side plate has a threaded rod, which is symmetrically distributed.

[0008] Furthermore, the mounting base is provided with a connecting block on its side, and a sleeve is connected to the outer side of the connecting block, with four sets of sleeves.

[0009] Furthermore, a cross-shaped slot is provided at the bottom of the base plate, and a cross-shaped plate is provided at the top of the mounting base, the cross-shaped plate being embedded inside the cross-shaped slot.

[0010] Furthermore, an inner groove is formed inside the first ring body, and a sealing ring is embedded inside the inner groove.

[0011] Furthermore, a sealing groove is formed on the side of the outer pipe, and a sealing ring is provided on the side of the inner pipe, the sealing ring being embedded inside the sealing groove.

[0012] Furthermore, a turntable ring is provided on the side of the outer pipe, and the turntable ring is threadedly connected to the inner pipe.

[0013] Furthermore, the plasma ignition combustion assist system for W-flame boilers with oxygen assistance according to the present invention also includes a control device. The control device establishes a communication connection with the combustion assist body, the air inlet pipe, the outer pipe, and the inner pipe. The control device is used to control the plasma ignition sequence, oxygen assist flow regulation, and sealing and fastening operations.

[0014] Furthermore, in the plasma ignition combustion assist system for oxygen-assisted W-flame boilers described in this invention, the control device includes a system monitoring module, an ignition control module, and a sealing management module. The system monitoring module is configured to collect gas flow data from the intake pipe and sealing pressure data at the junction of the outer and inner pipes in real time, filter and calibrate the collected data, and transmit the processed monitoring data to the ignition control module and the sealing management module. The ignition control module is configured to receive monitoring data from the system monitoring module, calculate the plasma power setpoint of the combustor body and the oxygen auxiliary damper opening setpoint of the intake pipe based on the gas flow data, generate control signals according to the calculation results, and perform plasma power enhancement operation and oxygen auxiliary damper opening adjustment operation. The sealing management module is configured to receive sealing pressure data from the system monitoring module, analyze the sealing pressure data to determine the sealing status of the first ring and the second ring, generate an adjustment command when the sealing pressure is lower than the threshold, control the tightening operation of the fastening screw to enhance the clamping force of the sealing ring, and monitor the wear status of the sealing ring in real time.

[0015] Beneficial effects of this invention; This invention significantly simplifies the installation process of the oxidizer body by using a modular docking design between the base plate and the mounting base, utilizing the quick positioning and engagement of the cross-shaped clamping plate and the cross-shaped clamping groove, combined with the guiding structure of the threaded column through the hole and the threaded rod sliding into the sleeve. This allows even non-professionals to complete the assembly efficiently. The connection between the outer and inner pipes employs a static seal of the sealing ring and sealing groove, a threaded locking of the turntable ring, and a dynamic sealing unit between the first and second ring bodies. The servo adjustment of the fastening screw enhances the clamping force of the sealing ring, effectively improving the sealing reliability at the junction. The system monitoring module of the control device analyzes the intake pipe flow data and pipe sealing pressure in real time, the ignition control module adaptively adjusts the plasma power and oxygen auxiliary damper opening, and the sealing management module provides early warnings based on the pressure waveform and adjusts the tightening operation. This achieves a synergistic effect of simplified installation, adaptive sealing, and intelligent control, thereby overcoming the technical defects of existing oxidizers such as complex installation and easy loosening of the seal. Attached Figure Description

[0016] To more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the mounting base structure of the present invention; Figure 3 This is a schematic diagram of the cross-shaped slot structure of the present invention; Figure 4 This is a schematic diagram of the turntable ring structure of the present invention; Figure 5 This is a schematic diagram of the sealing ring structure of the present invention; Figure 6 This is a schematic diagram of the fastening screw structure of the present invention.

[0018] The markings in the diagram are as follows: 1. Combustion aid body; 2. Outer pipe; 3. Inner pipe; 4. Base plate; 5. Mounting base; 6. Diagonal brace; 7. Mounting plate; 8. Mounting hole; 9. Cross clamping plate; 10. Cross clamping groove; 11. Connecting block; 12. Sleeve; 13. Through hole; 14. Threaded post; 15. Side plate; 16. Locking nut; 17. Threaded rod; 18. Fastening nut; 19. Connecting block; 20. Air inlet pipe; 21. Sealing ring; 22. Sealing groove; 23. First ring body; 24. Second ring body; 25. Plate body; 26. Threaded pipe; 27. Wing nut; 28. Inner groove; 29. ​​Sealing ring; 30. Fixing plate; 31. Metal frame; 32. Magnetic suction frame; 33. Fastening screw; 34. Fixing frame; 35. Turntable ring. Detailed Implementation

[0019] To make the technical solution of the present invention clearer, the present invention will be clearly and completely described below with reference to specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The present invention provided by various embodiments will be described in detail below with reference to the accompanying drawings. To better understand the purpose of the present invention, the present invention will be described in further detail below.

[0020] Please see Figures 1 to 6This invention provides a plasma ignition and combustion assist system for a W-flame boiler with oxygen supply, comprising a combustion assist body 1 and an outer pipe 2. The outer pipe 2 is located on the side of the combustion assist body 1, and an air inlet pipe 20 is located on the outside of the combustion assist body 1. There are three sets of air inlet pipes 20. A base plate 4 is located at the bottom of the combustion assist body 1, and a mounting base 5 is located at the bottom of the base plate 4. A threaded post 14 is located at the bottom of the base plate 4, and a threaded rod 17 is located on the side of the base plate 4. A through hole 13 is opened inside the mounting base 5. Due to the through hole 13, the threaded post 14 at the bottom of the base can pass through the interior of the mounting base 5. The threaded post 14 passes through the through hole 13, and a locking nut 16 is threadedly connected to the bottom of the threaded post 14. A sleeve 12 is located on the outside of the mounting base 5, and the threaded rod 17 passes through the sleeve 12. The mounting base 5 is equipped with a threaded fastening nut 18. A diagonal brace 6 is symmetrically distributed on the outer side of the mounting base 5. A mounting plate 7 is also provided on the outer side of the mounting base 5, with mounting holes 8 inside. A threaded post 14 and a locking nut 16 are installed at the bottom of the base plate 4, and a threaded rod 17 and a fastening nut 18 are provided at the bottom of the side plate 15. Before installation, the operator first connects the cross groove 10 at the bottom of the base plate 4 with the cross plate 9, and then inserts the threaded post 14 through the mounting base 5 and the threaded rod 17 through the sleeve 12. Subsequently, the fastening nut 18 and the locking nut 16 are tightened sequentially to thread the base plate 4 and the mounting base 5. Finally, fasteners are used to install the mounting plate 7 on the outside of the boiler. This installation method eliminates the need for professional personnel.

[0021] An inner pipe 3 is provided on the side of the outer pipe 2. A first ring 23 and a second ring 24 are provided outside the outer pipe 2 and the inner pipe 3. The first ring 23 is connected to the second ring 24 through a pivot. A plate 25 is provided on the outside of the first ring 23 and the second ring 24. A threaded pipe 26 passes through the inside of the plate 25. A wing nut 27 is threaded to the outside of the threaded pipe 26. A fixing plate 30 is provided on the outside of the first ring 23 and the second ring 24. The fixing plates 30 are symmetrically distributed. A metal frame 31 is connected to one side of the fixing plate 30 through a pivot. A magnetic frame 32 is provided on the side of the other set of fixing plates 30. The magnetic frame 32 magnetically attracts the metal frame 31. The unit is equipped with a fixing frame 34, and a fastening screw 33 is installed inside the fixing frame 34. A first ring body 23 and a second ring body 24 are installed on the outside of the outer pipe 2, and a sealing ring 29 is installed inside the ring body structure. A metal frame 31 and a magnetic suction frame 32 are installed on the outside of the fixing plate 30, and a fastening screw 33 is installed on the outside of the metal frame 31 and the magnetic suction frame 32. After the outer pipe 2 and the inner pipe 3 are installed, the workers install the sealing ring 29 inside the first ring body 23 and the second ring body 24, and use fasteners to install it at the junction. Then, the metal frame 31 and the magnetic suction frame 32 are rotated respectively, and the internal fastening screw 33 is turned inward to press and seal.

[0022] The base plate 4 has a connecting block 19 on its side, and a side plate 15 on the side of the connecting block 19. The bottom of the side plate 15 has a threaded rod 17, which is symmetrically distributed. Because of the connecting block 11, it is convenient to install the threaded rod 17 at the bottom of the side plate 15 on the outside of the base plate 4.

[0023] The mounting base 5 has a connecting block 11 on its side, and a sleeve 12 is connected to the outside of the connecting block 11. There are four sets of sleeves 12. Because of the connecting block 11, it is convenient to install the sleeve 12 on the side of the mounting base 5.

[0024] The bottom of the base plate 4 has a cross-shaped slot 10, and the top of the mounting base 5 has a cross-shaped plate 9. The cross-shaped plate 9 is embedded inside the cross-shaped slot 10. By installing the cross-shaped plate 9 and the cross-shaped slot 10, the base plate 4 and the mounting base 5 can be initially and quickly aligned.

[0025] The first ring body 23 has an inner groove 28 inside, and a sealing ring 29 is embedded inside the inner groove 28. The inner groove 28 facilitates the installation of the sealing ring 29 and allows for timely replacement if it is damaged.

[0026] A sealing groove 22 is provided on the side of the outer pipe 2, and a sealing ring 21 is provided on the side of the inner pipe 3. The sealing ring 21 is embedded in the inside of the sealing groove 22. Due to the sealing groove 22 and the sealing ring 21, the outer pipe 2 and the inner pipe 3 can be initially sealed.

[0027] The outer pipe 2 is provided with a turntable ring 35 on its side. The turntable ring 35 is threadedly connected to the inner pipe 3. The installation of the turntable ring 35 facilitates the initial connection between the outer pipe 2 and the inner pipe 3.

[0028] The working principle of the plasma ignition combustion-assisted system for oxygen-added W-flame boilers is as follows: When using this device, the combustion-assisted body 1 needs to be installed on the outside of the boiler. For convenient and quick installation, a threaded post 14 and a locking nut 16 are installed at the bottom of the base plate 4. The side plate 15 is connected to the side of the mounting base 5 by a connecting block 19, and a threaded rod 17 and a fastening nut 18 are provided at the bottom of the side plate 15. Next, the side of the mounting base 5 is connected to the sleeve 12 by a connecting block 11. A cross-shaped retaining plate 9 is embedded inside the cross-shaped retaining groove 10. Before installation, the operator first connects the cross-shaped retaining groove 10 at the bottom of the base plate 4 with the cross-shaped retaining plate 9, which allows for a preliminary splicing of the base plate 4 and the mounting base 5. Then, the threaded post 14 is inserted through the interior of the mounting base 5. The perforation 13 is made, and the threaded rod 17 is passed through the sleeve 12. Then, the fastening nut 18 and the locking nut 16 are taken out, and the locking nut 16 is threaded to the threaded post 14. Then, the fastening nut 18 is threaded to the threaded rod 17. In this way, the base plate 4 and the mounting base 5 can be assembled. This way, no professional personnel are required for installation, and the installation operation is more convenient during use. Secondly, in order to improve the sealing performance at the junction of the burner body 1 and the boiler and enhance the dust combustion effect inside, a first ring 23 and a second ring 24 are installed on the outside of the outer pipe 2, and a sealing ring 29 is installed inside the ring structure. A metal frame 31 and a magnetic frame 32 are installed on the outside of the fixing plate 30. Externally installed fastening screw 33. The worker first splices the outer pipe 2 and inner pipe 3. First, rotate the turntable ring 35 to insert the outer ring into the side of the inner pipe 3, and embed the sealing ring 21 inside the sealing groove 22. This allows for the initial splicing of the outer pipe 2 and inner pipe 3. Then, remove the fastener through the mounting hole 8 inside the mounting plate 7, install the mounting base 5 on the outside of the boiler, and then install the sealing ring 29 inside the first ring 23 and the second ring 24. Next, install the first ring 23 and the second ring 24 at the junction. Then, remove the threaded pipe 26, pass it through the plate 25, and tighten the external wing nut 27 for fixation. Furthermore, the first ring 23 and the second ring 24 are externally equipped with a fixing plate 30, wherein the first... A magnetic suction bracket 32 ​​is installed on the outer side of the first ring body 23, and a metal bracket 31 is installed on the outer side of the second ring body 24. Then, the magnetic suction bracket 32 ​​and the metal bracket 31 are rotated outward in sequence, and the fastening screw 33 is removed and inserted into the interior of the fixing bracket 34. The internal fastening screw 33 is then tightened inward to press it inward. This can effectively improve the sealing effect during application. Finally, preparations for ignition need to be made first. System checks are required. First, confirm that the plasma cooling water system and the closed water system have been emptied. Verify the flame detector signal, flame television, and oxygen concentration monitor. Then, observe the fuel and air volume adjustment, start the coal mill heater, maintain the outlet air temperature, adjust the primary air volume to the calibrated value, preset the oxygen auxiliary air damper opening, and then proceed with the ignition start-up process. First, activate the plasma and release the interlock protection.Increase the plasma power, stabilize the arc duration, and confirm arc stability via flame television. Then, slowly operate the coal mill, controlling the pulverized coal concentration, and simultaneously activate the oxygen-assisted system, employing a stepped heating strategy. After operation, perform a shutdown procedure: first, shut down the coal mill, maintain plasma operation for 2 minutes to ensure complete combustion, and then sequentially terminate the oxygen-assisted system, followed by the plasma power supply and then the cooling water circulation.

[0029] The plasma ignition combustion assist system for W-flame boilers with oxygen assistance according to the present invention also includes a control device. The control device establishes a communication connection with the combustion assist body 1, the air inlet pipe 20, the outer pipe 2, and the inner pipe 3. The control device is used to control the plasma ignition sequence, oxygen assist flow regulation, and sealing and fastening operations.

[0030] The control device includes a system monitoring module, an ignition control module, and a seal management module; The system monitoring module is configured to collect gas flow data of intake pipe 20 and sealing pressure data at the junction of outer pipe 2 and inner pipe 3 in real time, filter and calibrate the collected data, and transmit the processed monitoring data to ignition control module and sealing management module. The ignition control module is configured to receive monitoring data from the system monitoring module, calculate the plasma power setting value of the combustor body 1 and the oxygen auxiliary damper opening setting value of the intake pipe 20 based on the gas flow data, generate control signals according to the calculation results, and perform plasma power enhancement operation and oxygen auxiliary damper opening adjustment operation. The sealing management module is configured to receive sealing pressure data from the system monitoring module, analyze the sealing pressure data to determine the sealing status of the first ring 23 and the second ring 24, generate an adjustment command when the sealing pressure is lower than the threshold, control the tightening operation of the fastening screw 33 to enhance the tightening force of the sealing ring 29, and monitor the wear status of the sealing ring 29 in real time.

[0031] During the implementation of the control device for the oxygen-assisted plasma ignition combustion system in a W-flame boiler, the system monitoring module continuously collects operating parameters through flow sensors located at the inlet pipe 20 and pressure sensors at the pipe connections. The collected gas flow data is processed using a Kalman filter algorithm to eliminate measurement noise interference, and a temperature compensation algorithm is used to calibrate the sealing pressure data. The processed data is synchronously transmitted to the ignition control module and the sealing management module via an industrial bus, forming a closed-loop monitoring network.

[0032] After receiving the calibrated gas flow data, the ignition control module dynamically calculates the plasma power output curve of the combustor body 1 using a fuzzy PID control algorithm. The calculation process comprehensively considers the ratio of pulverized coal concentration to oxygen concentration, generating corresponding plasma arc intensity control commands. Simultaneously, based on real-time flow changes, the oxygen auxiliary damper opening adjustment mechanism of the intake pipe 20 is driven by a stepper motor to achieve adaptive matching between the oxygen-enriched environment and the ignition intensity. This control strategy is particularly effective during the boiler's cold start-up phase, effectively preventing deflagration.

[0033] The sealing management module focuses on maintaining the integrity of pipe connections. By analyzing the sealing pressure waveform characteristics at the junction of outer pipe 2 and inner pipe 3, the module uses pattern recognition technology to determine the sealing status of the first ring 23 and the second ring 24. When the pressure decay rate exceeds a set threshold, the module activates the servo control mechanism of the fastening screw 33, using precise torque control to enhance the radial clamping force of the sealing ring 29. This dynamic sealing compensation mechanism can continuously maintain the stability of the sealing interface under fluctuating boiler load conditions.

[0034] Data interaction between the three modules employs a timestamp synchronization mechanism to ensure the timing consistency of control commands. Preprocessed data from the system monitoring module provides decision-making support for the other two modules, while the execution feedback from the ignition control module and the sealing management module in turn optimizes the sampling frequency parameters of the monitoring module. This collaborative control mode maintains combustion efficiency and ensures the reliability of the sealing system under varying boiler load conditions.

[0035] In practical applications, when the boiler needs to adjust its operating load, the control device initiates a coordinated control process. The system monitoring module first detects the flow rate changes in the intake pipe 20, and the ignition control module then adjusts the plasma power and the opening of the oxygen-assisted damper. Simultaneously, the sealing management module anticipates sealing requirements based on pressure changes and adjusts the tightening force of the fastening screw 33 in advance. This proactive control method significantly improves the system's response speed and safety performance.

[0036] For monitoring the wear condition of the sealing ring 29, the sealing management module employs a pressure trend analysis method. By establishing a model relating sealing pressure to operating time and combining this with the adjustment frequency records of the fastening screw 33, a life prediction curve for the sealing ring 29 is constructed. When the sealing ring 29 is detected to be entering a critical wear state, the system will issue a maintenance warning, indicating that the sealing ring 29 needs to be inspected or replaced.

[0037] The control device's operating logic embodies the concept of intelligent operation and maintenance, transforming existing passive maintenance into proactive predictive maintenance. Through multi-module data fusion analysis, the system not only achieves precise control of the ignition and combustion process.

[0038] This invention systematically improves upon the two major pain points of low installation efficiency and weak sealing effect mentioned in existing technologies through innovative mechanical structure design and intelligent control integration. Regarding installation, the problem of existing combustion aids requiring complex assembly processes by professional personnel is completely solved by the modular docking scheme between the base plate 4 and the mounting base 5. Workers only need to align the cross-shaped slot 10 at the bottom of the base plate 4 with the cross-shaped plate 9 at the top of the mounting base 5 to complete the initial positioning; the cross-shaped plate 9 then embeds into the cross-shaped slot 10. Subsequently, the threaded post 14 naturally passes through the through hole 13, the threaded rod 17 smoothly slides into the sleeve 12, and finally, tightening the locking nut 16 and the fastening nut 18 completes the fixation.

[0039] The improved sealing performance is reflected in multiple protection mechanisms. A triple-seal design is used at the connection between the outer pipe 2 and the inner pipe 3: the innermost layer is a precise fit between the sealing ring 21 and the sealing groove 22; the middle layer is achieved through threaded locking via the turntable ring 35; and the outer layer consists of a dynamic sealing unit composed of the first ring body 23 and the second ring body 24. When the boiler vibrates during operation, the metal frame 31 and the magnetic suction frame 32 on the fixed plate 30 maintain their initial positions through magnetic attraction, while the fastening screw 33 tightens the sealing ring 29. When the control system detects a decrease in sealing pressure, the servo mechanism automatically tightens the fastening screw 33, causing the sealing ring 29 to undergo radial deformation within the inner groove 28.

[0040] When the system monitoring module of the control device tracks the flow data of the intake pipe 20 in real time, it simultaneously analyzes the pressure waveform at the junction of the outer pipe 2 and the inner pipe 3. Once an abnormal sealing pressure characteristic is detected, the sealing management module immediately drives the fine-tuning mechanism of the fastening screw 33. This predictive maintenance avoids the passive situation of "repairing only when it breaks" in the existing solution. The ignition control module and the mounting structure form a wonderful linkage. When an abnormal vibration frequency of the burner body 1 is detected, it will automatically adjust the plasma power output. At the same time, the stress is dispersed by the diagonal bracing plate 6 of the mounting base 5. This electromechanical integration design ensures that the system remains stable under the variable load conditions of the boiler.

[0041] In practical applications, when the mounting plate 7 is connected to the boiler shell through the mounting holes 8, the 120-degree distribution of the three sets of air inlet pipes 20 ensures uniform oxygen distribution. A noteworthy detail is the anti-loosening design of the wing nuts 27 on the plate 25. During final tightening, workers only need to manually tighten to the predetermined torque; the self-locking characteristic of the threaded pipe 26 prevents loosening during operation. This invention system achieves a technological leap in "simplified installation, adaptive sealing, and intelligent control" through the deep integration of precision machining and intelligent technology.

Claims

1. A plasma ignition combustion assist system for oxygen-assisted combustion in a W-flame boiler, comprising a combustion assist body (1) and an external pipe (2), wherein the external pipe (2) is provided on the side of the combustion assist body (1), characterized in that: The combustion aid body (1) is provided with an air inlet pipe (20) on the outside. There are three sets of air inlet pipes (20). The bottom of the combustion aid body (1) is provided with a base plate (4). The bottom of the base plate (4) is provided with a mounting seat (5). The bottom of the base plate (4) is provided with a threaded post (14). The side of the base plate (4) is provided with a threaded rod (17). The mounting seat (5) has a through hole (13). The threaded post (14) passes through the through hole (13). The bottom of the threaded post (14) is threaded to a locking nut (16). The mounting seat (5) has a sleeve (12) on the outside. The threaded rod (17) passes through the sleeve (12). The threaded rod (17) is threaded to a fastening nut (18). The mounting seat (5) has a diagonal brace (6) on the outside. The diagonal brace (6) is symmetrically distributed. The mounting seat (5) has a mounting plate (7) on the outside. The mounting plate (7) has a mounting hole (8) inside.

2. The plasma ignition and combustion assist system for a W-flame boiler with oxygen supply according to claim 1, characterized in that, An inner pipe (3) is provided on the side of the outer pipe (2). A first ring (23) and a second ring (24) are provided outside the outer pipe (2) and the inner pipe (3). The first ring (23) is connected to the second ring (24) through a rotating shaft. A plate (25) is provided on the outside of the first ring (23) and the second ring (24). A threaded pipe (26) passes through the inside of the plate (25). A wing nut (27) is threaded to the outside of the threaded pipe (26). The first ring (23) is connected to the second ring (24) through a rotating shaft. 3) A fixing plate (30) is provided on the outside of the second ring body (24). The fixing plates (30) are symmetrically distributed. One side of the fixing plate (30) is connected to the metal frame (31) through a rotating shaft. The other side of the fixing plate (30) is provided with a magnetic suction frame (32). The magnetic suction frame (32) magnetically attracts the metal frame (31). The magnetic suction frame (32) and the metal frame (31) are provided with a fixing frame (34) on the outside. The fixing frame (34) is equipped with a fastening screw (33).

3. The plasma ignition and combustion assist system for a W-flame boiler with oxygen supply according to claim 1, characterized in that, The bottom plate (4) has a connecting block (19) on its side, and the connecting block (19) has a side plate (15) on its side. The bottom of the side plate (15) has a threaded rod (17) and the threaded rod (17) is symmetrically distributed.

4. The plasma ignition and combustion assist system for a W-flame boiler with oxygen supply according to claim 1, characterized in that, The mounting base (5) is provided with a connecting block (11) on its side, and a sleeve (12) is connected to the outside of the connecting block (11). The number of sleeves (12) is four.

5. The plasma ignition and combustion assist system for a W-flame boiler with oxygen supply according to claim 1, characterized in that, The bottom of the base plate (4) has a cross slot (10), and the top of the mounting base (5) has a cross plate (9), which is embedded in the inside of the cross slot (10).

6. The plasma ignition and combustion assist system for a W-flame boiler with oxygen addition assistance according to claim 2, characterized in that, An inner groove (28) is formed inside the first ring body (23), and a sealing ring (29) is embedded inside the inner groove (28).

7. A plasma ignition and combustion-assisted system for a W-flame boiler with oxygen supply according to claim 2, characterized in that, A sealing groove (22) is provided on the side of the outer pipe (2), and a sealing ring (21) is provided on the side of the inner pipe (3). The sealing ring (21) is embedded in the inside of the sealing groove (22).

8. A plasma ignition and combustion-assisted system for a W-flame boiler with oxygen supply according to claim 2, characterized in that, The outer pipe (2) is provided with a turntable ring (35) on its side, and the turntable ring (35) is threadedly connected to the inner pipe (3).

9. A plasma ignition and combustion-assisted system for a W-flame boiler with oxygen supply according to any one of claims 1 to 8, characterized in that, It also includes a control device, which establishes a communication connection with the combustion booster body (1), the air inlet pipe (20), the outer pipe (2) and the inner pipe (3). The control device is used to control the plasma ignition sequence, oxygen-assisted flow regulation and sealing and fastening operation.

10. A plasma ignition and combustion-assisted system for a W-flame boiler with oxygen supply according to claim 9, characterized in that: The control device includes a system monitoring module, an ignition control module, and a seal management module; The system monitoring module is configured to collect gas flow data of the intake pipe (20) and sealing pressure data at the junction of the outer pipe (2) and the inner pipe (3) in real time, filter and calibrate the collected data, and transmit the processed monitoring data to the ignition control module and the sealing management module. The ignition control module is configured to receive monitoring data from the system monitoring module, calculate the plasma power setting value of the combustion booster body (1) and the oxygen auxiliary damper opening setting value of the intake pipe (20) based on the gas flow data, generate control signals according to the calculation results, and perform plasma power boosting operation and oxygen auxiliary damper opening adjustment operation. The sealing management module is configured to receive sealing pressure data from the system monitoring module, analyze the sealing pressure data to determine the sealing status of the first ring (23) and the second ring (24), generate an adjustment command when the sealing pressure is lower than the threshold, control the tightening operation of the fastening screw (33) to enhance the tightening force of the sealing ring (29), and monitor the wear status of the sealing ring (29) in real time.

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