A method, system, device and medium for commissioning a multi-stream burner of a hot blast stove

Abstract

This application discloses a debugging method, system, equipment, and medium for a multi-stream burner in a hot blast stove, relating to the technical field of industrial hot blast stove combustion equipment. The method includes: acquiring a pressure value associated with the burner; verifying the pressure value associated with the burner when a debugging request for burner startup is received in the hot blast stove; performing an electrical function verification on the burner if the pressure value verification is successful; determining whether the burner is in manual mode if the electrical function verification is successful; controlling the burner to perform staged manual ignition and combustion debugging according to a preset first ignition sequence if the staged manual ignition and combustion debugging are successful; determining whether the burner is in automatic mode if the burner is in automatic mode; and controlling the burner to perform automatic ignition and operation monitoring according to a preset second ignition sequence and flame detection logic if the automatic mode is successful.

Description

Technical Field

[0001] This application relates to the technical field of industrial hot blast stove combustion equipment, and in particular to a method, system, equipment and medium for debugging a multi-stream burner for a hot blast stove. Background Technology

[0002] Currently, hot blast stoves are key equipment in industries such as iron and steel metallurgy and chemical engineering. The stable combustion of their burners is crucial for furnace temperature uniformity and production efficiency. Burner commissioning is a core step before hot blast stoves are put into operation, involving the coordinated verification of the gas system, air system, ignition device, and control logic. Currently, the industry generally relies on operator experience for commissioning, and the process lacks a unified and standardized procedure.

[0003] However, existing commissioning methods typically face challenges in terms of safety, efficiency, and reliability. The commissioning process lacks effective real-time interlock protection against abnormal conditions such as gas leaks and pressure fluctuations; manual operation sequences are prone to errors; and monitoring of combustion status and fault diagnosis rely primarily on manual observation and troubleshooting. These factors not only introduce safety risks such as deflagration and backfire during commissioning but also result in low commissioning efficiency and difficulty in adapting to the stable ignition and combustion requirements of various low-calorific-value gases. Summary of the Invention

[0004] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] In a first aspect, embodiments of this application provide a method for debugging a multi-flow burner in a hot blast stove, the method comprising:

[0006] Obtain the pressure value associated with the burner; Upon receiving a commissioning request indicating that the burners in the hot blast furnace are ready to start, the pressure value associated with the burners is verified. If the pressure value associated with the burner is verified to be satisfactory, the electrical function of the burner is verified. If the electrical function verification passes, determine whether it is in manual mode. If it is in manual mode, control the burner to perform staged manual ignition and combustion adjustment according to the preset first ignition sequence. After the manual ignition and combustion test are completed, it is determined whether the burner is in automatic mode. If it is in automatic mode, the burner is controlled to automatically ignite and monitor the operation according to the preset second ignition sequence and flame detection logic.

[0007] In one embodiment of the present invention, the pressure value associated with the burner includes a first pressure value of the ignition air pipeline, a second pressure value of the gas pipeline, and a third pressure value of the compressed air pipeline. The step of verifying the pressure value associated with the burner when a commissioning request for burner startup in the hot blast stove is received includes: Determine whether the first pressure value of the ignition air line is greater than a preset first pressure threshold. If the first pressure value of the ignition air pipeline is greater than a preset first pressure threshold, it is determined whether the second pressure value of the gas pipeline is greater than a preset second pressure threshold. If the second pressure value of the gas pipeline is greater than the preset second pressure threshold, determine whether the third pressure value of the compressed air pipeline is greater than the preset third pressure threshold. If the third pressure value of the compressed air pipeline is greater than the preset third pressure threshold, the pressure value verification of the burner is confirmed to be successful.

[0008] In one embodiment of the present invention, the step of performing electrical function verification on the burner after the pressure value associated with the burner has been verified as passing includes: Based on the manual control mode signal, the ignition actuator is controlled to perform a high-voltage discharge test. Based on the electric spark state of the high-voltage discharge test, the fault type of the ignition actuator is determined. Based on the manual control mode signal, the center burner gas valve and the main burner gas valve are tested sequentially according to the preset opening sequence. If the central burner gas valve and the main burner gas valve pass the test, the electrical function verification is deemed to have passed.

[0009] In one embodiment of the present invention, determining the fault type of the ignition actuator based on the spark state of the high-voltage discharge test includes: After the high-voltage discharge test is started, check whether there is a discharge spark between the high-voltage electrode line and the grounding shell; If there is no discharge spark, the fault type is determined to be a high-voltage transformer fault; If a discharge spark is present, the fault type is determined to be an electrode fault.

[0010] In one embodiment of the present invention, controlling the burner to perform staged manual ignition and combustion adjustment according to a preset first ignition sequence includes: Based on the purging operation command, the gas pipeline is controlled to perform a medium purging operation; Based on the first ignition sequence, the ignition execution unit is controlled to generate an ignition flame, and the ignition flame is verified. If the ignition flame verification is successful, the air valve of the central burner is opened and the first target flow value of the air valve of the central burner is adjusted to the preset first flow threshold. When the target flow rate of the air-gas valve of the central burner reaches the preset flow rate threshold, the air-gas valve of the main burner is opened and the second target flow rate of the air-gas valve of the central burner is adjusted to the preset second flow rate threshold.

[0011] In one embodiment of the present invention, the step of controlling the burner to automatically ignite and monitor its operation according to a preset second ignition sequence and flame detection logic in the automatic mode includes: In response to the automatic start command, the ignition actuator is controlled to start; Based on the first delay condition, determine whether to generate an ignition flame; When an ignition flame is generated, close the ignition valve and open the pneumatic valve of the center burner; Determine whether a center burner flame is generated. If a center burner flame is generated, open the main burner gas valve based on the second delay condition. Determine whether a main burner flame is generated. If a main burner flame is generated, determine that the burner enters the operating mode.

[0012] In one embodiment of the present invention, after determining whether an ignition flame is generated based on a first delay condition, the process includes: If no ignition flame is generated, immediately sound an alarm and shut off the ignition valve.

[0013] Secondly, this application proposes a debugging system for a multi-flow burner in a hot blast stove, the system comprising: a data verification module, a manual control module, and an automatic control module; The data verification module is configured to: acquire the pressure value associated with the burner; verify the pressure value associated with the burner when a debugging request for the burner to be started in the hot blast stove is received; and perform electrical function verification on the burner if the pressure value associated with the burner is verified to be valid. The manual control module is configured to: determine whether it is in manual mode when the electrical function verification is passed; and control the burner to perform staged manual ignition and combustion adjustment according to the preset first ignition sequence when it is in manual mode. The automatic control module is configured to: determine whether it is in automatic mode after the manual ignition and combustion debugging have passed; and control the burner to perform automatic ignition and operation monitoring according to the preset second ignition sequence and flame detection logic when it is in automatic mode.

[0014] Thirdly, an electronic device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program stored in the memory to implement the steps of a debugging method for a multi-flow burner of a hot blast stove as described in any of the first aspects above.

[0015] Fourthly, this application also proposes a computer-readable storage medium storing a computer program thereon, wherein when the computer program is executed by a processor, it implements the steps of the debugging method for a multi-flow burner of a hot blast stove according to any one of the first aspects.

[0016] In summary, the commissioning method for a multi-flow burner in a hot blast stove according to this application decomposes the commissioning process into four sequentially dependent core stages: pressure value safety verification, active electrical function verification, sequential ignition commissioning in manual mode, and logical monitoring operation in automatic mode. This achieves closed-loop control in terms of operational logic, where preceding steps provide a safety prerequisite for subsequent steps. The explicit judgment and switching between manual and automatic modes ensures a smooth transition from precise manual operation to automatic system operation, preserving the possibility of manual intervention and verification in key areas while ultimately achieving the goal of standardized automatic control. Through process standardization and logical judgment, the repeatability, safety, and reliability of the hot blast stove burner commissioning process are significantly improved, reducing the absolute reliance on highly skilled operators.

[0017] The commissioning method for multi-flow burners in hot blast stoves proposed in this application, along with other advantages, objectives, and features of this application, will be partly apparent from the following description and partly understood by those skilled in the art through study and practice of this application. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit this specification. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic flowchart illustrating a debugging method for a multi-flow burner in a hot blast stove, provided in an embodiment of this application; Figure 2 A schematic diagram of a debugging system for a multi-flow burner in a hot blast stove, provided in an embodiment of this application; Figure 3 This is a schematic diagram of the debugging electronic device for a multi-flow burner in a hot blast stove, provided as an embodiment of this application. Detailed Implementation

[0019] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0020] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0021] Please see Figure 1 This is a schematic flowchart illustrating a debugging method for a multi-flow burner in a hot blast stove, provided in an embodiment of this application. Specifically, it includes: S110, Obtain the pressure value associated with the burner; For example, acquiring the pressure value associated with the burner is a safety preparation before commissioning. This involves systematically collecting pressure signals from multiple key media pipelines, including ignition air, coal gas, and compressed air driving the pneumatic valve. The purpose is to establish an initial, objective physical state perception for the entire commissioning process; the acquired pressure values ​​serve as the basis for subsequent judgments on whether the system meets ignition conditions and allows the process to proceed. Before acquiring the pressure value associated with the burner, it is necessary to reset the emergency stop button, confirm that the "Ignition Conditions Met" indicator light on the control box is illuminated, trigger a dry contact signal provided by the customer indicating normal air, coal gas, or compressed air pressure, switch the manual / automatic switch to "manual" mode, confirm that the manual indicator light is illuminated, and check that the central burner's manual gas valve is completely closed.

[0022] S120. Upon receiving a commissioning request indicating that the burner in the hot blast furnace is ready to start, verify the pressure value associated with the burner. For example, upon receiving a clear trigger signal indicating that the hot blast stove burner is ready to start up, the system immediately verifies the pressure values ​​of each pipeline associated with the burner that were previously collected. The core purpose of this verification process is to determine whether the medium pressure status meets the most basic ignition conditions based on preset safety thresholds. Only when all key pressure values ​​are verified and determined to be normal is the system allowed to release the safety lock, and the logical flow can proceed. If any pressure value is abnormal, the entire commissioning process will be interrupted at this step and an alarm will be triggered, thereby preventing combustion instability or safety accidents that may be caused by insufficient or fluctuating medium pressure from the source, ensuring that all subsequent operations are carried out on a confirmed safe physical basis.

[0023] S130. If the pressure value associated with the burner is verified to be valid, perform electrical function verification on the burner. For example, after the pressure value associated with the burner is verified, an electrical function verification step is performed on the burner. The core principle of this step is to shift the focus of debugging from the macroscopic state of the medium to the reliability verification of the microscopic control and execution units. This step aims to proactively and preemptively diagnose whether key electrical control actuators such as ignition and valves are responding normally in a safe electrical environment without combustion risk, before the system is energized with a combustible medium and performs actual ignition. It forms a crucial bridge between "state safety confirmation" and "combustion process execution." Through simulated command drive and feedback monitoring, it verifies the integrity of the entire electrical-mechanical chain from the issuance of control signals to the completion of mechanical actions, thereby eliminating potential ignition failures or operational risks caused by high-pressure coil failure, valve jamming, or sequential logic errors. This lays a reliable foundation for subsequent manual and automatic debugging involving actual combustion.

[0024] S140. If the electrical function verification is passed, determine whether it is in manual mode. If it is in manual mode, control the burner to perform staged manual ignition and combustion adjustment according to the preset first ignition sequence. For example, after the electrical function verification confirms that all execution units are responding normally, the system logic first determines the operating mode selection. If it is in manual mode, it means that the subsequent combustion setup process will be carried out under the direct participation and control of the operator, strictly following a preset, irreversible first ignition sequence for graded manual ignition and combustion debugging. The core purpose of this stage is to safely and controllably complete the initial establishment and parameter coarse adjustment of the entire combustion sequence from ignition source establishment, central flame ignition to main flame stabilization through manual intervention before the automatic control system takes over completely, thereby providing a verified and stable combustion foundation for the subsequent automatic operation of the system.

[0025] S150. After the manual ignition and combustion test are completed, determine whether the burner is in automatic mode. If it is in automatic mode, control the burner to perform automatic ignition and operation monitoring according to the preset second ignition sequence and flame detection logic.

[0026] For example, after successfully establishing a stable combustion foundation through staged manual ignition and combustion debugging, the system enters a critical stage of transitioning from manual operation to autonomous system control and verification. At this point, the system logic proactively determines whether it is in automatic mode. The purpose is to confirm the ultimate goal of the debugging process: for the control system to take over the continuous operation and safety monitoring of the combustion process according to preset and fixed program logic. If automatic mode is determined, the system will activate a second ignition sequence identical to the manual operation sequence and simultaneously activate the dual-flame detection logic throughout the entire process to execute automatic ignition and operation monitoring. This achieves a fully programmed closed-loop operation of ignition, valve opening and closing, status detection, and fault protection, ultimately delivering the debugging process to a repeatable, automated system that does not rely on real-time manual intervention, ensuring the long-term stability and safety of the hot blast stove burners after commissioning.

[0027] In summary, the commissioning method for multi-flow burners in hot blast stoves proposed in this application decomposes the commissioning process into four sequentially dependent core stages: pressure value safety verification, active electrical function verification, sequential ignition commissioning in manual mode, and logical monitoring operation in automatic mode. This achieves closed-loop control in operational logic, where preceding steps provide a safety prerequisite for subsequent steps. The explicit judgment and switching between manual and automatic modes ensures a smooth transition from precise manual operation to automatic system operation, preserving the possibility of manual intervention and verification in key areas while ultimately achieving standardized automatic control. Through process standardization and logical judgment, the repeatability, safety, and reliability of the hot blast stove burner commissioning process are significantly improved, reducing absolute reliance on highly skilled operators.

[0028] In some examples, the pressure values ​​associated with the burner include a first pressure value from the ignition air line, a second pressure value from the gas line, and a third pressure value from the compressed air line. The verification of the pressure values ​​associated with the burner upon receiving a commissioning request to start the burner in the hot blast stove includes: Determine whether the first pressure value of the ignition air line is greater than a preset first pressure threshold. If the first pressure value of the ignition air pipeline is greater than a preset first pressure threshold, it is determined whether the second pressure value of the gas pipeline is greater than a preset second pressure threshold. If the second pressure value of the gas pipeline is greater than the preset second pressure threshold, determine whether the third pressure value of the compressed air pipeline is greater than the preset third pressure threshold. If the third pressure value of the compressed air pipeline is greater than the preset third pressure threshold, the pressure value verification of the burner is confirmed to be successful.

[0029] For example, the system determines whether the first pressure value of the ignition air pipeline is greater than a preset first pressure threshold. The preset first pressure threshold is 0.3 MPa, designed to ensure sufficient pressure and flow of combustion air for initial ignition and subsequent combustion. This is the fundamental physical prerequisite for forming a stable flame and preventing incomplete combustion or flameout due to insufficient air. Only when this condition is met is the next step allowed: verifying whether the second pressure value of the gas pipeline is greater than a preset second pressure threshold. The second pressure threshold is 0.1 MPa, designed to ensure the gas supply has the necessary kinetic energy and stability to meet the requirements of reliable ignition and continuous combustion, while avoiding the risk of backfire due to excessively low pressure. Assuming the first two pressure tests related to the combustion medium are both satisfactory, the system finally determines whether the third pressure value of the compressed air pipeline driving all pneumatic actuators, such as gas valves, is greater than a preset third pressure threshold. This third pressure threshold ensures that the entire pneumatic control system has reliable operational capabilities, allowing valves to open or close accurately and quickly as instructed. This is the fundamental guarantee for the physical execution of all automated control logic. Only after all three pressure values ​​have passed the rigorous comparison of their corresponding thresholds can the system finally determine that the pressure value associated with the burner has passed the verification, and proceed with the subsequent process.

[0030] By pre-setting clearly defined pressure thresholds and establishing a fixed sequence of judgment logic, the subjectivity and random errors of manual judgment are eliminated, ensuring that the assessment of safety conditions is consistent before each commissioning start-up. This proactive and mandatory multi-pressure interlock verification can effectively intercept safety accidents caused by abnormal medium pressure, such as insufficient pressure, fluctuations, or leaks, leading to ignition failure, unstable combustion, or even deflagration, thus preventing risks before substantive operations begin.

[0031] In some examples, the electrical function verification of the burner, after the pressure value associated with the burner has been verified as passing, includes: Based on the manual control mode signal, the ignition actuator is controlled to perform a high-voltage discharge test. Based on the electric spark state of the high-voltage discharge test, the fault type of the ignition actuator is determined. Based on the manual control mode signal, the center burner gas valve and the main burner gas valve are tested sequentially according to the preset opening sequence. If the central burner gas valve and the main burner gas valve pass the test, the electrical function verification is deemed to have passed.

[0032] For example, the electrical function verification first uses a manual control mode signal to control the ignition execution unit to perform a high-voltage discharge test. This test aims to verify the functional integrity of the high-voltage coil and electrodes, the core components of the ignition gun. Specifically, after triggering the ignition command in manual mode, the system drives the high-voltage coil to work. The operator observes whether a discharge spark is generated by bringing the high-voltage electrode wire close to the grounding housing (at a distance of 2-3 mm), which is the spark state of the high-voltage discharge test.

[0033] Following confirmation that the high-voltage discharge test's spark state possessed basic discharge capability, the verification process continued based on the same manual control mode signal, following a preset opening sequence: ignition, opening the center burner, and then opening the main burner. This sequence was used to test the gas valves of the center burner and main burner sequentially. This preset opening sequence prevents gas from prematurely entering the furnace and forming an explosive mixture without a valid ignition source. During testing, the system sequentially outputs opening commands to the corresponding pneumatic valves and monitors valve position feedback signals to confirm whether the valves actually performed mechanical actions. If there is no feedback signal, the valve's power supply or gas pressure needs to be checked; if the valve's power supply or gas pressure is normal but it still does not move, the valve is considered damaged. Only when the ignition execution unit test is completed, and both the center burner and main burner gas valves are verified to respond to the opening commands in the preset sequence, does the system finally determine that the overall electrical function verification has passed.

[0034] Before actually introducing a flammable medium and performing a potentially risky combustion operation, an independent and safe pre-validation phase is established. By simulating the control logic and actions necessary for the subsequent combustion process, this step can proactively detect and locate hidden faults in key hardware such as the high-pressure coil, electrodes, and gas valves, as well as errors in the control sequence logic, thereby mitigating the risks of failure, misoperation, or even safety accidents that may occur during actual ignition.

[0035] In some examples, determining the fault type of the ignition actuator based on the spark state of the high-voltage discharge test includes: After the high-voltage discharge test is started, check whether there is a discharge spark between the high-voltage electrode line and the grounding shell; If there is no discharge spark, the fault type is determined to be a high-voltage transformer fault; If a discharge spark is present, the fault type is determined to be an electrode fault.

[0036] For example, after the high-voltage discharge test is initiated, the presence of a discharge spark between the high-voltage electrode wire and the grounding casing is checked. If no spark is observed, the high-voltage transformer is directly identified as damaged. If a spark is observed, it proves that the high-voltage transformer output is normal. However, if the ignition gun still fails to ignite the flame properly during a complete combustion test, the fault can be further inferred to be in the electrode itself, such as carbon buildup, insulation damage, or abnormal electrode gap. This step precisely locates the fault from the entire "ignition system" down to the individual component, either the "high-voltage transformer" or the "electrode." Furthermore, the test is conducted in a safe environment without the introduction of combustible gas, enabling proactive risk assessment of critical ignition sources.

[0037] In some examples, controlling the burner to perform staged manual ignition and combustion adjustment according to a preset first ignition sequence includes: Based on the purging operation command, the gas pipeline is controlled to perform a medium purging operation; Based on the first ignition sequence, the ignition execution unit is controlled to generate an ignition flame, and the ignition flame is verified. If the ignition flame verification is successful, the air valve of the central burner is opened and the first target flow value of the air valve of the central burner is adjusted to the preset first flow threshold. When the target flow rate of the air-gas valve of the central burner reaches the preset flow rate threshold, the air-gas valve of the main burner is opened and the second target flow rate of the air-gas valve of the central burner is adjusted to the preset second flow rate threshold.

[0038] For example, during the staged manual ignition and combustion commissioning phase, the gas pipeline is first purged based on the venting operation command. The principle behind this operation is that after a long period of shutdown or pipeline maintenance before commissioning, residual gas may accumulate in the gas pipeline, posing a risk of deflagration if ignited directly. Therefore, by switching the manual / automatic switch to "stop" and then resetting it to manual mode after a short wait, or by setting up a dedicated purging process, inert gas or air is introduced into the pipeline, and the accumulated gas is displaced and discharged from the system through a dedicated venting pipe. To ensure thorough purging, gas is sampled at a sampling point before the burner's main valve, and an ignition test is performed to confirm that the medium reaching the burner is free of combustible gas, thus establishing a clean chamber environment free of the risk of gas-mixture explosion for subsequent ignition.

[0039] Next, based on the first ignition sequence, the ignition execution unit is controlled to generate an ignition flame, and the ignition flame is verified. Specifically, after confirming that the purging is complete, in manual mode, the ignition gun is first mechanically pulled out to a safe position outside the furnace (usually facing away from the operator), the ignition gas valve is temporarily closed, and the ignition button is pressed. At this time, a stable electric spark should be observed at the ignition electrode (accompanied by a "squeak" sound or visible discharge arc). This step verifies the feasibility of generating an ignition source. Subsequently, the ignition gas valve is slowly opened, and by adjusting its opening relative to the ignition air valve, the resulting pilot flame is adjusted to a preset ideal state of "blue and rigidity." This state indicates that the air-gas mixture ratio is appropriate, combustion is complete, and the flame is stable, avoiding flame extinguishing due to excessive air. This ignition process needs to be repeated multiple times (e.g., more than three times) to ensure the repeatability of successful ignition. At the same time, the safety interval rule must be followed, which is that the high-voltage coil should not work continuously for more than a preset time (e.g., 3 minutes) and the duration of each ignition should not exceed another preset time (e.g., 30 seconds) to prevent the high-voltage coil from overheating and being damaged.

[0040] After the ignition flame is verified as successful and stably established, the process enters the combustion establishment phase. First, with successful ignition flame verification, the air / gas valve of the central burner is opened, and the first target flow rate value of the central burner's air / gas valve is adjusted to the preset first flow rate threshold. Operationally, the ignition gun must first be reset to its normal operating position inside the burner, and then the command to start the central burner is manually triggered. The operator must immediately observe whether the central flame has been established through the viewing port at the tail of the burner; if no flame is seen, the machine must be stopped immediately to troubleshoot the problem. Once the central flame is confirmed to be established, the gas valve and air valve of the central burner are manually adjusted to a "suitable flow rate" suitable for long-term stable combustion; this flow rate value is recorded or set as the preset first flow rate threshold. For initial commissioning, this threshold needs to be determined experimentally; for restarting after a long-term shutdown, it can be quickly set by referring to the previously marked valve opening.

[0041] Subsequently, when the target flow rate of the air-gas valve of the central burner reaches the preset flow threshold, the air-gas valve of the main burner is opened, and the second target flow rate of the air-gas valve of the main burner is adjusted to the preset second flow threshold. That is, after the central burner has been operating stably, the main burner is manually started, and the establishment of the main flame is confirmed through the inspection port. After successful confirmation, the air-gas valve of the main burner is adjusted to the "suitable flow rate" required for main combustion, i.e., the preset second flow threshold. If the system is equipped with an automatic regulating valve, the lower limit opening of the air-gas valve needs to be set at this stage to ensure that the flame of the central burner receives reliable fuel supply support under any load, preventing the central flame from extinguishing due to excessively low flow rate during the main flame adjustment process.

[0042] Clearly define the operational requirements for each step of manual commissioning to avoid errors in sequence due to operator inexperience, thereby reducing the risks of backfire and gas accumulation; ensure flame stability (blue rigidity) by adjusting the flow thresholds of the center burner and main burner in stages, avoiding flameout caused by excessive air or insufficient gas; manual commissioning establishes a stable combustion foundation, reducing the probability of failure due to abnormal combustion conditions during automatic commissioning and improving overall commissioning efficiency; clearly mark valve openings so that restarting after a long shutdown does not require repeated trial and error, shortening restart time.

[0043] In some examples, the step of controlling the burner to automatically ignite and monitor its operation according to a preset second ignition sequence and flame detection logic in the automatic mode includes: In response to the automatic start command, the ignition actuator is controlled to start; Based on the first delay condition, determine whether to generate an ignition flame; When an ignition flame is generated, close the ignition valve and open the pneumatic valve of the center burner; Determine whether a center burner flame is generated. If a center burner flame is generated, open the main burner gas valve based on the second delay condition. Determine whether a main burner flame is generated. If a main burner flame is generated, determine that the burner enters the operating mode.

[0044] For example, in automatic mode, the burner is controlled to automatically ignite and monitor operation according to a preset second ignition sequence and flame detection logic. The process begins with a response to an automatic start command from the main control box, which then activates the ignition execution unit, causing the ignition high-voltage coil and solenoid valve to operate and generate a high-voltage electric spark to supply ignition gas. Based on a preset first delay condition, i.e., a preset time period (e.g., 2 to 5 seconds) after the ignition execution unit starts, the system uses a dedicated ignition flame detector to determine whether a stable ignition flame has been successfully generated. This delay is intended to allow time for flame establishment and stabilization, avoiding premature misjudgment. If an ignition flame is determined to have been generated, the next step is executed: first, the ignition valve is closed to stop the pilot flame source, and then the central burner pneumatic valve is opened, allowing gas and air to enter the central burner area. Next, the system uses an independent central burner flame detection probe to determine whether a central burner flame has been successfully generated. If no central flame is detected, an alarm is triggered and the central burner pneumatic valve is shut off for protection. If a central flame is detected, the main burner gas valve is opened based on a preset second delay condition (e.g., a delay of 2 to 5 seconds after central flame confirmation), allowing the main gas passage to operate. Subsequently, the system uses another independent main burner flame detection probe to determine whether a main burner flame has been successfully generated. If no main flame is detected, an alarm is triggered and the main burner gas valve is shut off. If a main flame is successfully detected, the burner system is finally confirmed to have safely entered a stable operating mode, after which the system will continuously monitor the flame status.

[0045] The entire process requires no manual intervention. It automatically completes ignition, flame detection, and valve switching according to preset logic and delay conditions, adapting to the needs of continuous industrial production. Each flame detection step is equipped with a delay condition to avoid misjudgment. If no flame is detected, an alarm is immediately triggered and the valve is shut off to prevent gas accumulation and subsequent deflagration. Operators only need to press the automatic start command to complete the subsequent processes, greatly reducing manual labor intensity and improving production efficiency.

[0046] In some examples, after determining whether to generate an ignition flame based on a first delay condition, the process includes: If no ignition flame is generated, immediately sound an alarm and shut off the ignition valve.

[0047] For example, in response to an automatic start command issued by the main control box, the ignition execution unit is immediately activated, causing the ignition high-voltage coil and solenoid valve to start working to generate a high-voltage electric spark and supply ignition gas. Based on a preset first delay condition, that is, after the ignition execution unit starts, a preset time period (e.g., 2 to 5 seconds) is delayed, the system uses a dedicated ignition flame detector to determine whether a stable ignition flame has been successfully generated; this delay is intended to allow time for flame establishment and stabilization, avoiding premature misjudgment. If it is determined that no ignition flame has been generated, the system immediately triggers an alarm and closes the ignition gas valve to terminate the process.

[0048] Immediately after ignition failure, the system alarms and shuts off the valve to prevent continuous gas leakage, thus blocking risks such as deflagration and gas accumulation at the source. No manual intervention is required; the system automatically triggers emergency measures, shortening fault handling time and reducing the exposure time of safety hazards. Alarm signals alert operators to abnormalities in the ignition process, facilitating rapid problem identification (such as the ignition actuator or ignition valve) and improving troubleshooting efficiency. Supplemented emergency handling logic makes the automatic ignition process more complete, preventing system paralysis or escalation of safety accidents due to initial failures.

[0049] Then, the combustion capacity is adjusted as follows: When manually adjusting, increase the gas valve first and then the air valve when increasing the load, and decrease the air valve first and then the gas valve when decreasing the load (the adjustment range is ≤10% at a time to avoid excessive air causing flameout); when automatically adjusting, the air and gas valves are adjusted synchronously according to the ratio (applicable to scenarios with automatic regulating valves).

[0050] After adjusting the combustion capacity, perform the shutdown procedure as follows: In case of manual shutdown, switch the selector switch to the "Stop" position. With the blower off, manually shut it off after the burner has cooled down (to avoid damage to the ignition gun / flame detector from high temperatures); in case of long-term shutdown, close the manual gas shut-off valve.

[0051] The present invention will be described in detail below with reference to the embodiments, but these should not be construed as limiting the scope of protection of the present invention.

[0052] Example: Preparations before commissioning: Confirm that the air pressure is 0.4MPa, the gas pressure is 0.15MPa, and the compressed air pressure is 0.6MPa. The "Ignition conditions met" light on the control box should be on. Switch the selector switch to "Manual".

[0053] Electrical debugging: Test the ignition gun high voltage coil (sparks should be seen when the electrode wire is disconnected), ignition valve (operation indicator is normal); test the center / main burner valve (power supply / gas pressure is normal, operation indicator is normal).

[0054] Manual ignition and adjustment: After purging the gas, pull out the ignition gun and ignite it, adjusting it to a blue rigid flame; reset the ignition gun, start the center burner and adjust the flow rate, then start the main burner and adjust the flow rate.

[0055] Automatic debugging: Switch to automatic mode, trigger automatic start, observe the sequential action of ignition → center valve → main valve, the dual flame detection is normal, and enter stable operation.

[0056] Shutdown: Manually switch to "Stop", and turn off the fan and gas shut-off valve after the burner has cooled down.

[0057] like Figure 2As shown, this application proposes a debugging system for a multi-flow burner in a hot blast stove, the system comprising: a data verification module 21, a manual control module 22, and an automatic control module 23; The data verification module 21 is configured to: acquire the pressure value associated with the burner; verify the pressure value associated with the burner when a debugging request for the burner to be started in the hot blast furnace is received; and perform electrical function verification on the burner if the pressure value associated with the burner is verified to be valid. The manual control module 22 is configured to: determine whether it is in manual mode when the electrical function verification is passed; and control the burner to perform staged manual ignition and combustion adjustment according to the preset first ignition sequence when it is in manual mode. The automatic control module 23 is configured to: determine whether it is in automatic mode after the manual ignition and combustion debugging are passed; and control the burner to perform automatic ignition and operation monitoring according to the preset second ignition sequence and flame detection logic when it is in automatic mode.

[0058] The effects of applying the aforementioned method in the above system can be found in the description of the aforementioned method embodiments, and will not be repeated here.

[0059] like Figure 3 As shown, this application embodiment also provides an electronic device 300, including a memory 310, a processor 320, and a computer program 311 stored in the memory 310 and executable on the processor. When the processor 320 executes the computer program 311, it implements the steps of any of the above-mentioned methods for debugging the multi-flow burner of the hot blast stove.

[0060] Since the electronic device described in this embodiment is the device used to implement the debugging device for a multi-flow burner of a hot blast stove in the embodiments of this application, those skilled in the art can understand the specific implementation method and various variations of the electronic device in this embodiment based on the method described in the embodiments of this application. Therefore, how the electronic device implements the method in the embodiments of this application will not be described in detail here. Any device used by those skilled in the art to implement the method in the embodiments of this application falls within the scope of protection of this application.

[0061] In practical implementation, when the computer program 311 is executed by the processor, it can achieve the following: Figure 1 Any of the corresponding implementation methods in the embodiments.

[0062] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0063] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-readable program code.

[0064] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0065] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0066] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0067] This application also provides a computer program product, which includes computer software instructions that, when executed on a processing device, cause the processing device to execute the LDPC decoding method of a solid-state drive controller.

[0068] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0069] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0070] In the several embodiments provided in this application, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms.

[0071] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0072] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0073] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0074] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0075] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0076] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. A method of commissioning a hot blast stove multi-stream burner, characterized in that, The method includes: Obtain the pressure value associated with the burner; Upon receiving a commissioning request indicating that the burners in the hot blast furnace are ready to start, the pressure value associated with the burners is verified. If the pressure value associated with the burner is verified to be satisfactory, the electrical function of the burner is verified. If the electrical function verification passes, determine whether it is in manual mode. If it is in manual mode, control the burner to perform staged manual ignition and combustion adjustment according to the preset first ignition sequence. After the manual ignition and combustion test are completed, it is determined whether the burner is in automatic mode. If it is in automatic mode, the burner is controlled to automatically ignite and monitor the operation according to the preset second ignition sequence and flame detection logic.

2. The method of commissioning a hot blast stove multi-stream burner according to claim 1, characterized in that, The pressure values ​​associated with the burner include a first pressure value from the ignition air pipeline, a second pressure value from the gas pipeline, and a third pressure value from the compressed air pipeline. The verification of the pressure values ​​associated with the burner upon receiving a commissioning request to start the burner in the hot blast stove includes: Determine whether the first pressure value of the ignition air line is greater than a preset first pressure threshold. If the first pressure value of the ignition air pipeline is greater than a preset first pressure threshold, it is determined whether the second pressure value of the gas pipeline is greater than a preset second pressure threshold. If the second pressure value of the gas pipeline is greater than the preset second pressure threshold, determine whether the third pressure value of the compressed air pipeline is greater than the preset third pressure threshold. If the third pressure value of the compressed air pipeline is greater than the preset third pressure threshold, the pressure value verification of the burner is confirmed to be successful.

3. The method of commissioning a hot blast stove multi-stream burner according to claim 1, characterized in that, If the pressure value associated with the burner is verified to be valid, the electrical function of the burner is then verified, including: Based on the manual control mode signal, the ignition actuator is controlled to perform a high-voltage discharge test. Based on the electric spark state of the high-voltage discharge test, the fault type of the ignition actuator is determined. Based on the manual control mode signal, the center burner gas valve and the main burner gas valve are tested sequentially according to the preset opening sequence. If the central burner gas valve and the main burner gas valve pass the test, the electrical function verification is deemed to have passed.

4. The method for adjusting a multi-flow burner in a hot blast stove according to claim 3, characterized in that, The determination of the fault type of the ignition actuator based on the spark state of the high-voltage discharge test includes: After the high-voltage discharge test is started, check whether there is a discharge spark between the high-voltage electrode line and the grounding shell; If there is no discharge spark, the fault type is determined to be a high-voltage transformer fault; If a discharge spark is present, the fault type is determined to be an electrode fault.

5. The method for adjusting a multi-flow burner in a hot blast stove according to claim 1, characterized in that, The control of the burner to perform staged manual ignition and combustion adjustment according to a preset first ignition sequence includes: Based on the purging operation command, the gas pipeline is controlled to perform a medium purging operation; Based on the first ignition sequence, the ignition execution unit is controlled to generate an ignition flame, and the ignition flame is verified. If the ignition flame verification is successful, the air valve of the central burner is opened and the first target flow value of the air valve of the central burner is adjusted to the preset first flow threshold. When the target flow rate of the air-gas valve of the central burner reaches the preset flow rate threshold, the air-gas valve of the main burner is opened and the second target flow rate of the air-gas valve of the central burner is adjusted to the preset second flow rate threshold.

6. The debugging method for a multi-flow burner in a hot blast stove according to claim 4, characterized in that, In the automatic mode, controlling the burner to automatically ignite and monitor its operation according to a preset second ignition sequence and flame detection logic includes: In response to the automatic start command, the ignition actuator is controlled to start; Based on the first delay condition, determine whether to generate an ignition flame; When an ignition flame is generated, close the ignition valve and open the pneumatic valve of the center burner; Determine whether a center burner flame is generated. If a center burner flame is generated, open the main burner gas valve based on the second delay condition. Determine whether a main burner flame is generated. If a main burner flame is generated, determine that the burner enters the operating mode.

7. The method for adjusting a multi-flow burner in a hot blast stove according to claim 6, characterized in that, After determining whether to generate an ignition flame based on the first delay condition, the process includes: If no ignition flame is generated, immediately sound an alarm and shut off the ignition valve.

8. A debugging system for a multi-flow burner in a hot blast stove, characterized in that, The system includes: a data verification module, a manual control module, and an automatic control module; The data verification module is configured to: acquire the pressure value associated with the burner; verify the pressure value associated with the burner when a debugging request for the burner to be started in the hot blast stove is received; and perform electrical function verification on the burner if the pressure value associated with the burner is verified to be valid. The manual control module is configured to: determine whether it is in manual mode when the electrical function verification is passed; and control the burner to perform staged manual ignition and combustion adjustment according to the preset first ignition sequence when it is in manual mode. The automatic control module is configured to: determine whether it is in automatic mode after the manual ignition and combustion debugging have passed; and control the burner to perform automatic ignition and operation monitoring according to the preset second ignition sequence and flame detection logic when it is in automatic mode.

9. An electronic device, comprising: The memory and processor are characterized in that the processor is used to execute the computer program stored in the memory to implement the steps of the debugging method for a multi-flow burner of a hot blast stove as described in any one of claims 1-7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the debugging method for a multi-flow burner of a hot blast stove as described in any one of claims 1-7.

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