Gas burner control method, device, equipment and medium based on combustion controller

Abstract

The embodiments of the present application disclose a gas burner control method, device, equipment and medium based on a combustion controller, wherein the method includes: in response to a rotation instruction sent by a host computer, controlling the flame height of a first gas burner to decrease from a first height to a second height; collecting the surface temperature of the boiler, and controlling the first gas burner to adjust from a first position to a second position according to the surface temperature; controlling the ignition of a second gas burner in a third position, and determining whether the flame of the second gas burner has reached a stable condition; if it is determined that the flame of the second gas burner has reached a stable condition, then controlling the second gas burner to rise to the first position according to the surface temperature of the boiler, and the first gas burner to descend to the third position and extinguish the flame. By adopting the embodiments of the present application, the service life of the gas burner can be extended without affecting the boiler reaction.

Description

Technical Field

[0001] The present application relates to the field of automatic control technology, and in particular to a gas burner control method, device, equipment and medium based on a combustion controller. Background Art

[0002] The development of electronic automation and the promotion and application of electronic computers in industrial boilers have brought about a revolution in combustion control technology. Improving the quality of material heating within a boiler is closely related to combustion control technology. Typically, the heating temperature varies throughout a boiler's operating cycle, and the boiler's load often fluctuates. The number of gas burners in a boiler is generally selected based on the maximum load.

[0003] However, when the gas burner is working for a long time and at a high load, the service life of the gas burner will be affected. In order to increase the service life of the gas burner, the existing technology usually performs intermittent control on the gas burner, that is, the gas burner is used alternately for operation according to the combustion time of the gas burner. However, when controlling the alternating operation of the gas burner, the flame state of the newly ignited gas burner is unstable, and ignition failure may also occur, resulting in uneven heating of local parts of the boiler. The temperature changes generated in this process will affect the reaction of the materials in the boiler.

[0004] Therefore, there is an urgent need for a control method that can extend the service life of the gas burner without affecting the boiler reaction. Summary of the Invention

[0005] The present application provides a gas burner control method, device, equipment and medium based on a combustion controller, which has the effect of extending the service life of the gas burner without affecting the boiler reaction.

[0006] In a first aspect, the present application provides a gas burner control method based on a combustion controller, comprising:

[0007] In response to the rotation instruction sent by the host computer, the flame height of the first group of gas burners is controlled to decrease from the first height to the second height;

[0008] collecting a surface temperature of the boiler when the boiler is burning with a flame at a second height, and controlling the first group of gas burners to rise from a first position to a second position according to the surface temperature;

[0009] controlling the ignition of a second group of gas burners in a third position, and determining whether the flames of the second group of gas burners have reached a stable condition, wherein the second group of gas burners and the first group of gas burners are alternately placed and are equal in number, and the third position is lower than the first position;

[0010] If it is determined that the flames of the second group of gas burners reach the stable condition, the second group of gas burners are controlled to rise to the first position, and the first group of gas burners are controlled to descend to the third position and extinguish.

[0011] By adopting the above technical solution and setting up two groups of gas burners for rotational use, the problem of the service life of gas burners being affected by long-term, high-load operation can be solved. In addition, during the rotation process of the two groups of gas burners, the flame of the first group of gas burners is controlled to be reduced while the second group of gas burners is controlled to be ignited. Only when the flame of the second group of gas burners reaches a stable condition, the first and second groups of gas burners are controlled to rotate, which can maintain the reaction temperature of the boiler at a stable state.

[0012] Optionally, controlling the flame height of the first group of gas burners to decrease from a first height to a second height includes:

[0013] controlling the air flow velocity of the first group of gas burners to increase to a first threshold;

[0014] According to the first threshold, the gas flow rate of the first group of gas burners is adjusted to reduce the flame height of the first group of gas burners from the first height to the second height.

[0015] By adopting the above technical solution, the flame height of the first group of gas burners is reduced by adjusting the air circulation speed and gas circulation speed of the first group of gas burners.

[0016] Optionally, controlling the first group of gas burners to rise from a first position to a second position according to the surface temperature includes:

[0017] According to the inner flame of the flame of the first group of gas burners, move the position of the first group of gas burners so that the inner flame of the flame of the first group of gas burners is close to the boiler;

[0018] According to the surface temperature, the positions of the first group of gas burners are adjusted to the second position.

[0019] By adopting the above technical solution, after lowering the flame height of the first group of gas burners, the position of the first group of gas burners is adjusted according to the surface temperature of the boiler, so that the reaction temperature of the boiler is always kept stable.

[0020] Optionally, the stabilization condition is that the flames of the second group of gas burners reach the first height, and the method further includes:

[0021] If it is determined that the flames of the second group of gas burners have not reached the stable condition, the air circulation speed of the second group of gas burners is adjusted to make the flames of the second group of gas burners reach the first height.

[0022] By adopting the above technical solution, the air circulation speed of the gas burner is controlled so that the flame reaches the first height, thereby improving the stability of the flame.

[0023] Optionally, after controlling the second group of gas burners to rise to the first position according to the surface temperature of the boiler, and the first group of gas burners to descend to the third position and extinguish, the method further includes:

[0024] Receive the carbon monoxide and oxygen content collected by the flue gas sensor;

[0025] The current combustion efficiency of the second group of gas burners is calculated according to the carbon monoxide and oxygen contents, and the gas circulation speed is corrected according to the combustion efficiency.

[0026] By adopting the above technical solution, the gas flow rate of the gas burner is timely adjusted according to the carbon monoxide and oxygen contents during combustion, so that the gas burner operates in a state of high combustion efficiency.

[0027] Optionally, after controlling the second group of gas burners to rise to the first position according to the surface temperature of the boiler, and the first group of gas burners to descend to the third position and extinguish, the method further includes:

[0028] In response to the material adding instruction sent by the host computer, the temperature of the boiler after the material is added is obtained, and a local position in the boiler where the temperature difference is large is determined;

[0029] According to the surface temperature of the boiler after the material is added, the first group of gas burners corresponding to the local position is controlled to ignite until the temperature of the local position is consistent with that of the boiler.

[0030] By adopting the above technical solution, after adding materials into the boiler, the first gas burner can eliminate the local location with large temperature difference, so that the reaction temperature of the boiler is always kept stable.

[0031] Optionally, the method further includes:

[0032] If it is detected that the target gas burner in the second group of gas burners at the third position fails to ignite successfully for multiple times, the flame height of the gas burner corresponding to the target gas burner position in the first group of gas burners is restored and moved to the first position.

[0033] By adopting the above technical solution, if there are multiple unignited gas burners in the second group of gas burners, the flame height and position of the corresponding gas burners in the first group of gas burners are restored, so that the reaction temperature of the boiler always remains stable.

[0034] In a second aspect of the present application, a gas burner control device based on a combustion controller is provided, the device comprising:

[0035] a flame height adjustment module, configured to control the flame height of the first group of gas burners to decrease from a first height to a second height in response to a rotation instruction sent by the host computer;

[0036] a gas burner position adjustment module, configured to collect a surface temperature of the boiler when the boiler is burning with a flame at a second height, and control the first group of gas burners to rise from a first position to a second position according to the surface temperature;

[0037] a stable condition judgment module, configured to control the ignition of a second group of gas burners in a third position, and to judge whether the flames of the second group of gas burners have reached a stable condition, wherein the second group of gas burners are alternately arranged with the first group of gas burners and are equal in number, and the third position is lower than the first position;

[0038] The gas burner position rotation module is used to control the second group of gas burners to rise to the first position and the first group of gas burners to descend to the third position and extinguish if it is determined that the flames of the second group of gas burners reach the stable condition.

[0039] In a third aspect of the present application, an electronic device is provided, comprising: a processor, a memory, a user interface and a network interface, wherein the memory is used to store instructions, the user interface and the network interface are used to communicate with other devices, and the processor is used to execute the instructions stored in the memory.

[0040] In a fourth aspect of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores instructions.

[0041] By adopting the technical solution of the present application and setting up two groups of gas burners for rotational use, the problem of the service life of the gas burners being affected by long-term, high-load operation can be solved. In addition, during the rotation of the two groups of gas burners, the flames of the first group of gas burners are controlled to be reduced while the second group of gas burners are controlled to be ignited. When the flames of the second group of gas burners reach a stable condition, the first group of gas burners and the second group of gas burners are controlled to rotate, thereby maintaining the reaction temperature of the boiler in a stable state. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1This is a schematic diagram of a system architecture of a solution provided by an embodiment of the present application;

[0043] Figure 2 This is a flow chart of a gas burner control method based on a combustion controller provided in an embodiment of the present application;

[0044] Figure 3 This is a schematic diagram of the corresponding relationship between flame height and gas burner position provided in an embodiment of the present application;

[0045] Figure 4 This is a schematic diagram of a two-group gas burner rotation process provided in an embodiment of the present application;

[0046] Figure 5 This is a schematic diagram of the relationship between air circulation velocity and flame length provided in an embodiment of the present application;

[0047] Figure 6 This is a structural diagram of a gas burner control device based on a combustion controller disclosed in an embodiment of the present application;

[0048] Figure 7 It is a structural diagram of an electronic device disclosed in an embodiment of the present application.

[0049] Explanation of the accompanying drawings: 601, flame height adjustment module; 602, gas burner position adjustment module; 603, stable condition judgment module; 604, gas burner position rotation module; 700, electronic device; 701, processor; 702, communication bus; 703, user interface; 704, network interface; 705, memory. DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below in conjunction with the drawings in the embodiments of this specification. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments.

[0051] In the description of the embodiments of this application, words such as "for example" or "for instance" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "for example" or "for instance" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "for example" or "for instance" is intended to present the relevant concepts in a concrete manner.

[0052] In the description of the embodiments of the present application, the term "multiple" means two or more. For example, multiple systems refer to two or more systems, and multiple screen terminals refer to two or more screen terminals. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0053] In order to facilitate understanding of the methods and devices provided by the embodiments of the present application, before introducing the embodiments of the present application, the background of the embodiments of the present application is first introduced.

[0054] Currently, improving the heating quality of materials within a boiler is closely related to combustion control technology. Typically, the heating temperature varies throughout a boiler's operating cycle, and the boiler's load often changes. The number of gas burners in a boiler is generally selected based on the boiler's maximum load.

[0055] However, if the gas burner is in long-term, high-load operation for a long time, it will affect the service life of the gas burner. In order to improve the service life of the gas burner, the existing technology usually performs intermittent control on the gas burner, that is, the gas burner is used alternately for operation according to the combustion time of the gas burner. However, when controlling the alternating operation of the gas burner, the flame state of the newly ignited gas burner is unstable, and ignition failure may also occur, resulting in uneven heating of local parts of the boiler. The temperature changes generated in this process will affect the reaction of the materials in the boiler.

[0056] After the background introduction of the above content, those skilled in the art can understand the problems existing in the prior art. The technical solutions in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0057] Please refer to Figure 1 , which shows a schematic diagram of the system architecture of a solution provided by one embodiment of the present application. This system architecture can be implemented as a gas burner control device based on a combustion controller. For example, the device may include: a host computer, a combustion controller, and a gas burner, wherein the combustion controller is communicatively connected to the host computer and the gas burner via a communication bus.

[0058] In the embodiment of the present application, the host computer refers to a computer device. The combustion controller can receive the control signal output by the host computer through DP communication and control the gas burner according to the control signal. Correspondingly, the combustion controller also returns the status of the gas burner flame, signal size and fault code to the host computer for analysis.

[0059] The combustion controller provided in the embodiments of the present application is a communicative ignition control device capable of implementing functions such as automatic ignition, flame detection, fault lockout, fault restart, program status display, separate air purge / cooling, high-temperature mode, PROFIBUS-DP, PV communication, and 485 communication. The operating modes of the combustion controller may include manual mode and automatic mode. When the combustion controller is in manual mode, the operator can control the gas burner by adjusting the buttons installed on the combustion controller; when the combustion controller is in automatic mode, the combustion controller can receive instructions from the host computer to automatically control the gas burner and simultaneously feedback the real-time status of the gas burner to the host computer.

[0060] Furthermore, the gas burner in the embodiment of the present application refers to a gas burner, which mainly includes a gas channel and an air channel. The combustion controller can correspondingly control the gas valve on the gas channel and the air valve on the air channel, thereby realizing flame control of the gas burner.

[0061] like Figure 1 As shown, in the system architecture of the embodiment of the present application, multiple combustion controllers can be set according to the needs of the boiler, and each combustion controller is adjacently connected and connected to the host computer, wherein each combustion controller is connected to control a gas burner.

[0062] The above describes the system architecture of this application. Based on the above embodiments, please refer to Figure 2 A flow chart of a method for controlling a gas burner based on a combustion controller is provided. This method can be implemented using a computer program, a single-chip microcomputer, or run on a gas burner control device based on a combustion controller in a von Neumann architecture. The computer program can be integrated into an application or run as a standalone tool application. Specifically, it includes steps 201 to 204:

[0063] Step 201: In response to a rotation instruction sent by a host computer, the flame height of the first group of gas burners is controlled to decrease from a first height to a second height.

[0064] The instructions are instructions and commands for the combustion controller to operate, and can be understood as codes that specify the execution of a certain operation or function. In this embodiment of the application, the rotation instructions can be understood as functional codes that instruct the combustion controller to execute the alternating operation of the first group of gas burners and the second group of gas burners.

[0065] Furthermore, in the embodiments of this application, the first group of gas burners refers to the gas burners in an active state. If the boiler is large and has a high heat demand, the number of gas burners in the first group can be set to multiple, and the specific number can be determined based on the boiler's needs. Correspondingly, the second group of gas burners refers to the gas burners in an inactive state. The number of gas burners in the second group is equal to the number of gas burners in the first group, and the placement of each gas burner in the second group corresponds one-to-one with the placement of the gas burners in the first group.

[0066] Among them, the flame height refers to the vertical height of the flame ejected by the gas burner when it is working. Furthermore, in the embodiment of the present application, the flame height in normal working state is defined as the first height. When the flame of the gas burner is controlled to become smaller, the flame height of the gas burner will decrease, and the flame height of the gas burner at this time is defined as the second height.

[0067] Because prolonged, high-load operation of gas burners can shorten their service life, the present embodiment provides two groups of gas burners, which are rotated and used alternately during the production process to extend their service life. For example, when the host computer detects the operation of the first group of gas burners, it begins timing. When the operating time of the first burner group reaches a preset duration, a rotation instruction is triggered, which the host computer sends to the combustion controller.

[0068] Furthermore, during the rotation of the two sets of gas burners, the burners in the second set may fail to ignite or experience unstable flames, which can lead to uneven heating within the boiler, affecting the internal reaction of the boiler and even shortening the life of the boiler. Therefore, it is necessary to gradually extinguish the flames of the first set of gas burners and only rotate the burners when the flames of the burners in the second set are normal.

[0069] The combustion controller corresponding to the first group of gas burners responds to the rotation instructions sent by the host computer, and controls the gas flux and air flux by adjusting the gas valve and air valve of each gas burner, thereby controlling the flame height of the first group of gas burners from the first height to the second height.

[0070] Step 202: collecting the surface temperature of the boiler when burning with a flame of a second height, and controlling the first group of gas burners to rise from the first position to the second position according to the surface temperature.

[0071] The first position and the second position refer to the relative positions of the nozzle opening of the gas burner and the bottom of the boiler, wherein the second position is higher than the first position.

[0072] For example, please refer to Figure 3 , which shows a schematic diagram of the corresponding relationship between the flame height and the position of the gas burner. Since the heat emitted by the flame will decrease after the flame height of the first group of gas burners is reduced from the first height to the second height, in order to maintain the reaction temperature of the boiler balanced and the overall reaction temperature does not fluctuate greatly, it is necessary to move the position of the first group of gas burners upward so that the inner flame of the first group of gas burners is closer to the boiler surface, such as Figure 3 As shown, in actual conditions, the distance d for the flame height of the first gas burner to decrease from the first height to the second height is, in order to keep the temperature constant, it is usually necessary to raise the position of the gas burner by d.

[0073] Furthermore, in actual applications, the surface temperature of the boiler can be collected by setting a temperature sensor. When the flame height of the first group of gas burners is reduced from the first height to the second height, the first group of gas burners is controlled to move upward according to the surface temperature of the boiler at this time, so that the surface temperature of the boiler is always stable during the reaction process to maintain the normal progress of the reaction in the boiler.

[0074] Step 203: controlling the second group of gas burners at the third position to ignite, and determining whether the flames of the second group of gas burners have reached a stable condition.

[0075] The third position refers to the position where the gas burner is placed when it is not in use. Figure 4 , which shows a schematic diagram of the two groups of gas burners before the rotation process. Figure 4 As shown, the second group of gas burners are alternately placed and are located below the first group of gas burners. When the second group of gas burners are not in use, they are placed in a third position lower than the first position.

[0076] Flame stability refers to the ability of a flame to maintain a certain position and volume under specified combustion conditions, without flashback or ignition. The fundamental cause of flashback is a flame propagation velocity exceeding the airflow velocity, disrupting the dynamic balance between the flame propagation velocity and the airflow velocity. Therefore, to prevent flashback, the air and gas flow velocities of the gas burner must be controlled to exceed a certain critical velocity. Furthermore, care should be taken to ensure a uniform velocity distribution across the gas burner outlet cross-section to avoid external disturbances in the airflow. For burners with higher combustion capacities, cooling the burner head is also an important measure to prevent flashback.

[0077] In terms of flame failure, it mainly includes flame separation and extinction. Under diffusion combustion conditions, the gas fuel and air near the burner outlet can form a combustible mixture of various concentrations during the mixing process, including gases with high flame propagation speed, which is conducive to forming a stable ignition heat source. In contrast, during flame combustion, the combustible gas flowing out of the burner has been mixed in a chemically equivalent ratio, or even a slightly lean gas, such as one with an excess air coefficient greater than 1. This gas is diluted by the atmosphere, and its flame propagation speed is significantly reduced, which can easily cause flame separation and extinction.

[0078] For example, when the combustion controller responds to the rotation instruction sent by the host computer, it starts to reduce the flame of the first group of gas burners, starts to control the ignition of the second group of gas burners in the third position, and starts to judge whether the flame state of the second group of gas burners has reached a stable condition, so as to facilitate the subsequent rotation of the first group of gas burners and the second group of gas burners.

[0079] In a feasible embodiment, the stability condition can be defined as the flame of the second gas burner reaching a first height. If it is determined that the flame of the second group of gas burners has not reached the stability condition, the air circulation speed and gas circulation speed of the second group of gas burners are adjusted so that the flame height of the second group of gas burners reaches the first height.

[0080] In another feasible embodiment, if it is detected that the target gas burner in the second group of gas burners in the third position has failed to ignite successfully for multiple times, the flame height of the gas burner corresponding to the target gas burner position in the first group of gas burners is restored and moved to the first position.

[0081] Specifically, when rotating between two groups of gas burners, it is necessary to determine whether the flames of the second group of gas burners have reached a stable state. However, there may be a faulty burner in the second group of gas burners. If a burner in the second group of gas burners is detected to have failed to ignite multiple times, the corresponding burner in the first group of gas burners will be restored to its original position and flame state. A corresponding prompt message will be generated and sent to maintenance personnel to remind them to perform maintenance.

[0082] Step 204: If it is determined that the flames of the second group of gas burners have reached a stable condition, the second group of gas burners are controlled to rise to the first position, and the first group of gas burners are controlled to descend to the third position and extinguished.

[0083] Exemplarily, when the combustion controller determines that the flames of the second group of gas burners have reached a stable condition, it starts to control the rotation of the first group of gas burners and the second group of gas burners, that is, controls the second group of gas burners to rise to the first position, and the first group of gas burners to fall to the third position. When it is determined that the flames of the first group of gas burners raised to the first position are in a stable condition and the surface temperature of the boiler reaches the temperature required for the reaction, the first group of gas burners is controlled to extinguish, completing the rotation of the first group of gas burners and the second group of gas burners.

[0084] By adopting the technical solution of steps 201 to 204 above and setting up two groups of gas burners for rotational use, the problem of the service life of the gas burners being affected by prolonged, high-load operation can be solved. In addition, during the rotation of the two groups of gas burners, the flames of the first group of gas burners are controlled to be reduced while the second group of gas burners are controlled to be ignited. Only when the flames of the second group of gas burners reach a stable condition are the first and second groups of gas burners controlled to rotate, thereby maintaining a stable reaction temperature of the boiler.

[0085] The above embodiment illustrates the process of rotating the two groups of gas burners. Based on the above embodiment, as an optional embodiment, the process of controlling the flame height of the first group of gas burners to decrease from the first height to the second height in the above process may further include the following steps:

[0086] Step 301: Control the air flow rate of the first group of gas burners to increase to a first threshold.

[0087] Step 302: According to a first threshold, adjust the gas flow rate of the first group of gas burners to reduce the flame height of the first group of gas burners from a first height to a second height.

[0088] In the embodiment of the present application, the gas burner is provided with an air valve and a gas valve. The combustion controller can control the air flow rate and the gas flow rate provided by the gas burner to the flame by controlling the air valve and the combustion valve. Since the flame height of the gas burner is affected by the air flow rate and the gas flow rate, the flame height increases with the increase of the gas flow rate and decreases with the increase of the air flow rate. Please refer to Figure 5 , Figure 5 A schematic diagram of the relationship between air velocity and flame length is shown, in which three gas burners with different specifications are used for experiments, such as Figure 5 As shown, when the air flow rate increases, the flame height of the gas burner will be significantly reduced. Therefore, the flame height can be reduced by increasing the air flow rate of the gas burner and reducing the gas flow rate of the gas burner.

[0089] For example, when the combustion controller receives a rotation instruction, it needs to lower the flame height of the first group of gas burners. Therefore, it first controls the air circulation speed of the first group of gas burners to increase to a first threshold value. The first threshold value can be preset in the combustion controller in advance and is an optimal adjustment speed for the air circulation speed. After adjusting the air circulation speed of the first group of gas burners, the flame height will be significantly reduced. At this time, in order to maintain an optimal ratio of air and gas for the combustion of the gas burner flames, it is necessary to adjust the gas circulation speed of the first group of gas burners according to the first threshold value, thereby reducing the flame height of the first group of gas burners from the first height to the second height.

[0090] The above embodiment describes the adjustment of the flame height. Based on the above embodiment, as an optional embodiment, the step of controlling the first group of gas burners to rise from the first position to the second position according to the surface temperature in the above process may further include the following steps:

[0091] According to the inner flame of the flame of the first group of gas burners, the position of the first group of gas burners is moved so that the inner flame of the flame of the first group of gas burners is close to the boiler; according to the surface temperature, the position of the first group of gas burners is adjusted to the second position.

[0092] Specifically, the flame consists of a core, an inner flame, and an outer flame, and the flame temperature increases from the inside out. After lowering the flame height of the first set of gas burners, the position of the inner flame of the first set of gas burners is determined by a flame detection sensor, and the position of the first set of gas burners is moved so that the inner flame is close to the boiler surface. The surface temperature of the boiler is then determined by a temperature sensor. If the surface temperature of the boiler is higher than a preset reaction temperature, the position of the first set of gas burners is further adjusted so that the core of the flame of the first set of gas burners is close to the boiler surface. If the surface temperature of the boiler is lower than the preset reaction temperature, the outer flame of the first set of gas burners is controlled to be close to the boiler surface.

[0093] Based on the above embodiment, as an optional embodiment, after the rotation between the first group of gas burners and the second group of gas burners is completed, it is also necessary to ensure that the combustion efficiency of the second group of gas burners is in a high state, which may specifically include the following steps:

[0094] Step 401: Receive the carbon monoxide and oxygen content collected by the flue gas sensor.

[0095] Step 402: Calculate the current combustion efficiency of the second group of gas burners based on the carbon monoxide and oxygen contents, and calibrate the gas flow rate based on the combustion efficiency.

[0096] The prerequisite for improving combustion efficiency is to achieve the optimal ratio of fuel and air. According to the fuel combustion reaction formula, to avoid excess air or gas, the oxygen and carbon monoxide content in the flue gas must be reduced. However, the oxygen and carbon monoxide content in the flue gas are mutually restrictive factors. During actual commissioning, it is almost impossible to control the carbon monoxide and oxygen content in the flue gas to zero. To achieve the optimal combustion efficiency of the gas burner, the carbon monoxide content must be controlled to less than 10ppm and the oxygen content must be controlled within 3.5%.

[0097] For example, after the first and second groups of gas burners rotate, the second group of gas burners, which receives data collected by the flue gas sensor, produces carbon monoxide and oxygen. The collected carbon monoxide and oxygen content are substituted into the carbon monoxide and oxygen combustion formula to calculate the combustion efficiency. If the combustion efficiency is lower than a threshold, indicating that the current combustion efficiency of the second group of gas burners is low, the gas flow rate of the second group of gas burners is adjusted based on the combustion efficiency.

[0098] Based on the above embodiment, as an optional embodiment, since the reaction raw materials are often added to the boiler during the reaction process, when the reaction in the boiler requires a relatively high reaction temperature, if new materials are added to the boiler during the reaction, it may cause a large temperature difference in the local area, thereby affecting the overall reaction. Therefore, in order to avoid this phenomenon, after adding new materials to the boiler for reaction, the following steps may be specifically included:

[0099] Step 501: In response to the material adding instruction sent by the host computer, the temperature of the boiler after the material is added is obtained, and a local position in the boiler with a large temperature difference is determined.

[0100] Step 502: According to the surface temperature of the boiler after adding the material, the first group of gas burners corresponding to the local position are controlled to ignite until the temperature of the local position is consistent with that of the boiler.

[0101] For example, in this embodiment of the present application, the "add material" instruction can be understood as a command triggered by the host computer detecting the addition of reactive material into the boiler. At this point, the combustion controller begins collecting data from temperature sensors located around the boiler and determines whether there is a localized location with a significant temperature difference. If a localized location with a significant temperature difference is determined, the temperature of the gas burner in the second group of gas burners corresponding to that localized location is increased to eliminate the temperature difference at that localized location.

[0102] Furthermore, when the flames of the second group of gas burners are already in the maximum high temperature mode, the temperature of the local position can be kept consistent with the temperature of the entire boiler by controlling the ignition of the gas burners in the first group of gas burners corresponding to the local position.

[0103] Reference Figure 6 The present application further provides a gas burner control device based on a combustion controller. The gas burner control device based on a combustion controller may include: a flame height adjustment module 601, a gas burner position adjustment module 602, a stability condition judgment module 603, and a gas burner position rotation module 604, wherein:

[0104] The flame height adjustment module 601 is used to control the flame height of the first group of gas burners to decrease from a first height to a second height in response to a rotation instruction sent by the host computer;

[0105] The gas burner position adjustment module 602 is configured to collect the surface temperature of the boiler when the boiler is burning with a flame at a second height, and control the first group of gas burners to rise from a first position to a second position according to the surface temperature;

[0106] a stable condition judgment module 603, configured to control the ignition of a second group of gas burners in a third position, and to judge whether the flames of the second group of gas burners have reached a stable condition, wherein the second group of gas burners are alternately arranged with the first group of gas burners and are equal in number, and the third position is lower than the first position;

[0107] The gas burner position rotation module 604 is configured to control the second group of gas burners to rise to the first position and the first group of gas burners to descend to the third position and extinguish if it is determined that the flames of the second group of gas burners have reached the stable condition.

[0108] Based on the above embodiment, as an optional embodiment, the flame height adjustment module 601 further includes: an air flow rate control unit and a flame height reduction unit, wherein:

[0109] an air flow rate control unit, configured to control the air flow rate of the first group of gas burners to increase to a first threshold value;

[0110] The flame height reducing unit is used to adjust the gas flow velocity of the first group of gas burners according to the first threshold value so as to reduce the flame height of the first group of gas burners from the first height to the second height.

[0111] Based on the above embodiment, as an optional embodiment, the gas burner position adjustment module 602 further includes: a first gas burner moving unit and a first gas burner adjusting unit, wherein:

[0112] a first gas burner moving unit, configured to move the positions of the first group of gas burners according to the inner flames of the flames of the first group of gas burners, so that the inner flames of the flames of the first group of gas burners are close to the boiler;

[0113] The first gas burner adjustment unit is used to adjust the positions of the first group of gas burners to the second position according to the surface temperature.

[0114] Based on the above embodiment, as an optional embodiment, the stable condition judgment module further includes: a second gas burner adjustment unit, wherein:

[0115] The second gas burner adjustment unit is used to adjust the air circulation speed of the second group of gas burners to make the flames of the second group of gas burners reach the first height if it is determined that the flames of the second group of gas burners have not reached the stable condition.

[0116] Based on the above embodiment, as an optional embodiment, the gas burner control device based on the combustion controller further includes: a gas flow velocity correction module, a local temperature difference position determination module, a local temperature difference position elimination module and a first gas burner recovery module, wherein:

[0117] a gas flow velocity correction module, configured to receive carbon monoxide and oxygen contents collected by a flue gas sensor; calculate the current combustion efficiency of the second group of gas burners based on the carbon monoxide and oxygen contents, and correct the gas flow velocity based on the combustion efficiency;

[0118] a local temperature difference position determination module, configured to respond to a material addition instruction sent by the host computer, obtain the temperature of the boiler after the material is added, and determine a local position in the boiler where the temperature difference is large;

[0119] A local temperature difference position elimination module is used to control the ignition of the first group of gas burners corresponding to the local position according to the surface temperature of the boiler after the material is added, until the temperature of the local position is consistent with that of the boiler;

[0120] The first gas burner recovery module is used to restore the flame height of the gas burner corresponding to the target gas burner position in the first group of gas burners and move it to the first position if it is detected that the target gas burner in the second group of gas burners at the third position has failed to ignite successfully for multiple times.

[0121] It should be noted that the above embodiments provide devices that implement their functions using only the division of the above functional modules as examples. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. In addition, the device and method embodiments provided in the above embodiments are based on the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0122] This application also discloses an electronic device. Figure 7 , Figure 7 Schematic diagram of the structure of an electronic device disclosed in an embodiment of the present application. The electronic device 700 may include: at least one processor 701, at least one network interface 704, a user interface 703, a memory 705, and at least one communication bus 702.

[0123] The communication bus 702 is used to implement the connection and communication between these components.

[0124] The user interface 703 may include a display screen (Display) and a camera (Camera). Optionally, the user interface 703 may also include a standard wired interface and a wireless interface.

[0125] The network interface 704 may optionally include a standard wired interface or a wireless interface (such as a WI-FI interface).

[0126] The processor 701 may include one or more processing cores. Using various interfaces and circuits, the processor 701 connects to various components within the server. It executes instructions, programs, code sets, or instruction sets stored in the memory 705, as well as accesses data stored in the memory 705, to perform various server functions and process data. Optionally, the processor 701 may be implemented using at least one of the following hardware forms: a digital signal processing (DSP), a field-programmable gate array (FPGA), or a programmable logic array (PLA). The processor 701 may integrate one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), and a modem. The CPU primarily processes the operating system, user interface graphics, and application programs; the GPU is responsible for rendering and drawing content displayed on the display screen; and the modem handles wireless communications. It is understood that the modem may not be integrated into the processor 701 but implemented as a separate chip.

[0127] Among them, the memory 705 may include a random access memory (RAM) or a read-only memory (Read-Only Memory). Optionally, the memory 705 includes a non-transitory computer-readable storage medium. The memory 705 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 705 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area may store data involved in the above-mentioned various method embodiments, etc. The memory 705 may also optionally be at least one storage device located away from the aforementioned processor 701. Refer to Figure 7 The memory 705 as a computer storage medium may include an operating system, a network communication module, a user interface module, and an application program of a gas burner control method based on a combustion controller.

[0128] exist Figure 7In the electronic device 700 shown, the user interface 703 is mainly used to provide an input interface for the user and obtain the data input by the user; and the processor 701 can be used to call an application program stored in the memory 705 for a gas burner control method based on a combustion controller. When executed by one or more processors 701, the electronic device 700 executes one or more of the methods described in the above embodiments. It should be noted that for the aforementioned method embodiments, for the sake of simplicity of description, they are all expressed as a series of action combinations, but those skilled in the art should know that this application is not limited to the order of the actions described, because according to this application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required for this application.

[0129] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0130] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of units, which is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some service interface, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0131] Units described as separate components may or may not be physically separate, and 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 these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0132] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0133] 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 memory. Based on this understanding, the technical solution of this application, or the portion 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 memory and includes several instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the various embodiments of the method of this application. The aforementioned memory includes various media that can store program code, such as USB flash drives, mobile hard drives, magnetic disks, or optical disks.

[0134] The foregoing is merely an exemplary embodiment of the present disclosure and is not intended to limit the scope of the present disclosure. In other words, any equivalent variations and modifications made in accordance with the teachings of the present disclosure are still within the scope of the present disclosure. Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the disclosure and the practical implications thereof.

[0135] This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not described herein. The description and examples are to be considered as exemplary only, and the scope and spirit of the present disclosure are to be defined by the claims.

Claims

1. A gas burner control method based on a combustion controller, characterized in that: include: In response to the rotation instruction sent by the host computer, the flame height of the first group of gas burners is controlled to decrease from the first height to the second height; collecting a surface temperature of the boiler when the flame at the second height is used for combustion, and controlling the first group of gas burners to rise from a first position to a second position according to the surface temperature; controlling the ignition of a second group of gas burners in a third position, and determining whether the flames of the second group of gas burners have reached a stable condition, wherein the second group of gas burners and the first group of gas burners are alternately placed and are equal in number, and the third position is lower than the first position; If it is determined that the flames of the second group of gas burners reach the stable condition, the second group of gas burners are controlled to rise to the first position, and the first group of gas burners are controlled to descend to the third position and extinguish.

2. The gas burner control method based on the combustion controller according to claim 1 is characterized in that: The step of controlling the flame height of the first group of gas burners to decrease from a first height to a second height comprises: controlling the air flow velocity of the first group of gas burners to increase to a first threshold; According to the first threshold, the gas flow rate of the first group of gas burners is adjusted to reduce the flame height of the first group of gas burners from the first height to the second height.

3. The gas burner control method based on the combustion controller according to claim 1 is characterized in that: The step of controlling the first group of gas burners to rise from a first position to a second position according to the surface temperature comprises: According to the inner flame of the flame of the first group of gas burners, move the position of the first group of gas burners so that the inner flame of the flame of the first group of gas burners is close to the boiler; According to the surface temperature, the positions of the first group of gas burners are adjusted to the second position.

4. The gas burner control method based on combustion controller according to claim 1, characterized in that: The stable condition is that the flames of the second group of gas burners reach the first height, and the method further includes: If it is determined that the flames of the second group of gas burners have not reached the stable condition, the air circulation speed of the second group of gas burners is adjusted to make the flames of the second group of gas burners reach the first height.

5. The gas burner control method based on combustion controller according to claim 1, characterized in that: After controlling the second group of gas burners to rise to the first position and the first group of gas burners to descend to the third position and extinguish, the method further includes: Receive the carbon monoxide and oxygen content collected by the flue gas sensor; The current combustion efficiency of the second group of gas burners is calculated according to the carbon monoxide and oxygen contents, and the gas circulation speed is corrected according to the combustion efficiency.

6. The gas burner control method based on combustion controller according to claim 1, characterized in that: After controlling the second group of gas burners to rise to the first position and the first group of gas burners to descend to the third position and extinguish, the method further includes: In response to the material adding instruction sent by the host computer, the temperature of the boiler after the material is added is obtained, and a local position in the boiler where the temperature difference is large is determined; According to the surface temperature of the boiler after the material is added, the first group of gas burners corresponding to the local position is controlled to ignite until the temperature of the local position is consistent with that of the boiler.

7. The gas burner control method based on combustion controller according to claim 1, characterized in that: The method further comprises: If it is detected that the target gas burner in the second group of gas burners at the third position fails to ignite successfully for multiple times, the flame height of the gas burner corresponding to the target gas burner position in the first group of gas burners is restored and moved to the first position.

8. A gas burner control device based on a combustion controller, characterized in that: The device comprises: A flame height adjustment module (601) is used to control the flame height of the first group of gas burners to decrease from a first height to a second height in response to a rotation instruction sent by the host computer; A gas burner position adjustment module (602) is used to collect the surface temperature of the boiler when the flame is burned at a second height, and control the first group of gas burners to rise from the first position to the second position according to the surface temperature; a stable condition judgment module (603), for controlling the ignition of a second group of gas burners in a third position, and judging whether the flames of the second group of gas burners have reached a stable condition, the second group of gas burners being alternately placed with the first group of gas burners and being equal in number, the third position being lower than the first position; The gas burner position rotation module (604) is used to control the second group of gas burners to rise to the first position and the first group of gas burners to descend to the third position and extinguish the flames if it is determined that the flames of the second group of gas burners have reached the stable condition.

9. An electronic device, characterized in that: The electronic device (700) comprises a processor (701), a memory (705), a user interface (703) and a network interface (704), wherein the memory (705) is used to store instructions, the user interface (703) and the network interface (704) are used to communicate with other devices, and the processor (701) is used to execute the instructions stored in the memory (705) so that the electronic device (700) executes the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores instructions, and when the instructions are executed, the method according to any one of claims 1 to 7 is executed.

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