Heating furnace, control method and device thereof and readable storage medium

Abstract

The invention discloses a heating furnace, a control method and device thereof and a readable storage medium, and relates to the technical field of equipment control. The control method of the heating furnace comprises the steps that in the operation process of the heating furnace, the gas flow in a gas pipeline is detected, and the gas flow is obtained; determining a target oxygen content according to the gas flow; determining a first flow interval corresponding to the air pipeline and a second flow interval corresponding to the oxygen pipeline according to the target oxygen content; the flow of air in the air pipeline is adjusted so that the flow of the air can be within the first flow interval; and adjusting the flow of the oxygen in the oxygen pipeline to enable the flow of the oxygen to be in a second flow interval. The combustion efficiency of the heating furnace is improved, and the energy consumption of the heating furnace is reduced.

Description

Technical Field

[0001] The present application relates to the field of equipment control technology, and in particular to a heating furnace and a control method, device and readable storage medium thereof. Background Art

[0002] At present, steel rolling heating furnaces can use oxygen-enriched combustion technology, which has the advantages of promoting full combustion of fuel, increasing flame temperature, improving the radiation heat exchange capacity of flue gas and reducing smoke exhaust. It is one of the key process paths for energy saving and carbon reduction of steel rolling heating furnaces. Using oxygen-enriched combustion technology, the oxygen enrichment rate is a key parameter affecting the application effect of oxygen-enriched combustion, but an inaccurate oxygen enrichment rate will affect the combustion efficiency of the heating furnace. Therefore, at this stage, the control method of the heating furnace has technical problems such as low combustion efficiency. Summary of the invention

[0003] The embodiments of the present application provide a heating furnace and a control method, device and readable storage medium thereof, which are used to solve technical problems such as low combustion efficiency of heating furnaces in the prior art.

[0004] In a first aspect of an embodiment of the present application, a control method for a heating furnace is provided, wherein the heating furnace includes a gas pipeline, an air pipeline, and an oxygen pipeline, and the method includes:

[0005] During the operation of the heating furnace, the flow rate of the gas in the gas pipeline is detected to obtain the gas flow rate;

[0006] Determine the target oxygen content according to the gas flow rate;

[0007] Determine a first flow interval corresponding to the air pipeline and a second flow interval corresponding to the oxygen pipeline according to the target oxygen content;

[0008] Adjusting the flow rate of air in the air duct so that the flow rate of the air is in a first flow rate interval;

[0009] The flow rate of oxygen in the oxygen pipeline is adjusted so that the flow rate of oxygen is in a second flow rate interval.

[0010] The control method of the heating furnace in this embodiment determines the target oxygen content according to the gas flow rate, and then determines the first flow range corresponding to the air duct and the second flow range corresponding to the oxygen duct according to the target oxygen content, thereby ensuring the accuracy of the target oxygen content and ensuring that the air flow in the air duct and the oxygen flow in the oxygen duct are in the optimal range, thereby improving the combustion efficiency of the heating furnace and reducing the energy consumption of the heating furnace.

[0011] In a second aspect of an embodiment of the present application, a control device for a heating furnace is provided. The heating furnace includes a gas pipeline, an air pipeline, and an oxygen pipeline. The device includes:

[0012] The control unit is used to detect the flow rate of the gas in the gas pipeline during the operation of the heating furnace to obtain the gas flow rate;

[0013] A processing unit, used for determining a target oxygen content according to the gas flow rate;

[0014] The processing unit is further used to determine a first flow interval corresponding to the air pipeline and a second flow interval corresponding to the oxygen pipeline according to the target oxygen content;

[0015] The control unit is further used to adjust the flow rate of the air in the air duct so that the flow rate of the air is in a first flow rate interval;

[0016] The control unit is also used to adjust the flow rate of oxygen in the oxygen pipeline so that the flow rate of oxygen is in a second flow rate range.

[0017] The control device of the heating furnace in this embodiment determines the target oxygen content according to the gas flow rate, and then determines the first flow range corresponding to the air duct and the second flow range corresponding to the oxygen duct according to the target oxygen content, thereby ensuring the accuracy of the target oxygen content and ensuring that the air flow in the air duct and the oxygen flow in the oxygen duct are in the optimal range, thereby improving the combustion efficiency of the heating furnace and reducing the energy consumption of the heating furnace.

[0018] In a third aspect of the embodiments of the present application, another heating furnace control device is provided, comprising a processor and a memory, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the steps of the heating furnace control method in any of the above embodiments are implemented. Therefore, the heating furnace control device has all the beneficial effects of the heating furnace control method in any of the above embodiments, which will not be described in detail here.

[0019] In a fourth aspect of the embodiments of the present application, a readable storage medium is provided, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the control method of the heating furnace in any of the above embodiments are implemented. Therefore, the readable storage medium has all the beneficial effects of the control method of the heating furnace in any of the above embodiments, which will not be repeated here.

[0020] According to a fifth aspect of the present invention, a heating furnace is proposed, comprising: a control device for the heating furnace as defined in the above second aspect, or the control device for the heating furnace as defined in the above third aspect, and / or a readable storage medium as defined in the above fourth aspect, thereby having all the beneficial technical effects of the control device for the heating furnace as defined in the above second aspect, or the control device for the heating furnace as defined in the above third aspect, and / or the readable storage medium as defined in the above fourth aspect, and no further details will be given here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 A flow chart of a method for controlling a heating furnace provided in an embodiment of the present application;

[0023] Figure 2 A functional module block diagram of a control device for a heating furnace provided in an embodiment of the present application;

[0024] Figure 3 This is a structural block diagram of the control device of the heating furnace provided in an embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through 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.

[0026] In this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.

[0027] In some embodiments, Figure 1 As shown, in an embodiment of the present application, a method for controlling a heating furnace is provided, comprising:

[0028] Step S101, during the operation of the heating furnace, detecting the flow of gas in the gas pipeline to obtain the gas flow;

[0029] Step S102, determining the target oxygen content according to the gas flow rate;

[0030] Step S103, determining a first flow interval corresponding to the air pipeline and a second flow interval corresponding to the oxygen pipeline according to the target oxygen content;

[0031] Step S104, adjusting the flow rate of air in the air duct so that the flow rate of air is in a first flow rate interval;

[0032] Step S105, adjusting the flow rate of oxygen in the oxygen pipeline so that the flow rate of oxygen is in a second flow rate range.

[0033] In this embodiment, a control method for a heating furnace is proposed, wherein the heating furnace includes a gas pipeline, an air pipeline and an oxygen pipeline, wherein the heating furnace is a device for heating materials or workpieces (generally metals) to a rolling and forging temperature, the gas pipeline is a pipeline for supplying gas, the air pipeline is a pipeline for supplying air, and the oxygen pipeline is a pipeline for supplying oxygen.

[0034] For example, mixing oxygen and air through an air duct and an oxygen duct can increase the oxygen content in the air, thereby improving the gas combustion efficiency.

[0035] During the operation of the heating furnace, the flow of the coal gas in the gas pipeline is detected to obtain the coal gas flow, wherein the coal gas flow represents the flow of the coal gas in the gas pipeline.

[0036] The target oxygen content is determined according to the gas flow rate, wherein the target oxygen content is the oxygen content corresponding to the gas flow rate.

[0037] Exemplarily, the target oxygen content is the optimal oxygen content corresponding to the coal gas flow rate, which can maximize the combustion efficiency of the coal gas.

[0038] According to the target oxygen content, a first flow interval corresponding to the air pipeline and a second flow interval corresponding to the oxygen pipeline are determined, wherein the first flow interval is the flow interval of air in the air pipeline, and the second flow interval is the flow interval of oxygen in the oxygen pipeline.

[0039] Exemplarily, based on the target oxygen content, a first flow interval of air in the air pipe and a second flow interval of oxygen in the oxygen pipe may be determined respectively.

[0040] The flow rate of air in the air pipeline is adjusted so that the flow rate of air is in a first flow rate interval, and the flow rate of oxygen in the oxygen pipeline is adjusted so that the flow rate of oxygen is in a second flow rate interval.

[0041] Exemplarily, a valve is provided in the air duct, and the flow rate of air in the air duct is adjusted by controlling the valve.

[0042] Exemplarily, a valve is provided in the oxygen pipeline, and the flow rate of oxygen in the oxygen pipeline is adjusted by controlling the valve.

[0043] The control method of the heating furnace in this embodiment determines the target oxygen content according to the gas flow rate, and then determines the first flow range corresponding to the air duct and the second flow range corresponding to the oxygen duct according to the target oxygen content, thereby ensuring the accuracy of the target oxygen content and ensuring that the air flow in the air duct and the oxygen flow in the oxygen duct are in the optimal range, thereby improving the combustion efficiency of the heating furnace and reducing the energy consumption of the heating furnace.

[0044] In some embodiments, a method for controlling a heating furnace is provided in an embodiment of the present application, and a target oxygen content is determined according to a gas flow rate, comprising:

[0045] Step S201, obtaining a plurality of preset gas flow intervals and a plurality of oxygen contents, wherein the plurality of gas flow intervals correspond to the plurality of oxygen contents in a one-to-one manner;

[0046] Step S202, determining a target interval among multiple gas flow intervals according to the gas flow;

[0047] Step S203: determining a target oxygen content among a plurality of oxygen contents based on the target interval.

[0048] In this embodiment, a plurality of preset gas flow intervals and a plurality of oxygen contents are obtained, wherein the plurality of gas flow intervals correspond to the plurality of oxygen contents one by one.

[0049] Exemplarily, the correspondence between multiple gas flow intervals and multiple oxygen contents is shown in Table 1, Table 2 and Table 3. Among them, Table 1 is the preheating section data of the heating furnace, the designed maximum gas flow is 8000m3 / h, and 4 flow intervals are divided according to the actual situation on site. Table 2 is the soaking section data of the heating furnace, the designed maximum gas flow is 4000m3 / h, and 3 flow intervals are divided according to the actual situation on site. Table 3 is the heating section data of the heating furnace, the designed maximum gas flow is 30000m3 / h, and 3 flow intervals are divided according to the actual situation on site.

[0050] Table 1

[0051]

[0052] Table 2

[0053]

[0054]

[0055] Table 3

[0056]

[0057] According to the gas flow rate, a target interval is determined among a plurality of gas flow rate intervals, wherein the target interval is a gas flow rate interval corresponding to the gas flow rate among the plurality of gas flow rate intervals.

[0058] The oxygen content corresponding to the target interval is searched among the multiple oxygen contents to obtain the target oxygen content.

[0059] The control method of the heating furnace in this embodiment determines the target interval among multiple gas flow intervals according to the gas flow rate, and queries the oxygen content corresponding to the target interval among multiple oxygen contents to obtain the target oxygen content, thereby ensuring the accuracy of the target oxygen content, and further ensuring that the air flow in the air duct and the oxygen flow in the oxygen duct are in the optimal range.

[0060] In some embodiments, an embodiment of the present application provides a method for controlling a heating furnace, which determines a first flow interval corresponding to an air duct and a second flow interval corresponding to an oxygen duct according to a target oxygen content, including:

[0061] Step S301, determining a first volume percentage of air and a second volume percentage of oxygen according to a target oxygen content;

[0062] Step S302, determining the volume ratio of gas to air according to the target oxygen content;

[0063] Step S303, determining a first flow range according to the gas flow rate, the volume ratio and the first volume proportion;

[0064] Step S304: determining a second flow range according to the gas flow rate, the volume ratio and the second volume proportion.

[0065] In this embodiment, a first volume proportion of air and a second volume proportion of oxygen are determined according to a target oxygen content, wherein the first volume proportion is the volume proportion of air in the mixed gas, and the second volume proportion is the volume proportion of oxygen in the mixed gas, and the mixed gas is a mixture of air and oxygen.

[0066] Exemplarily, the first volume proportion may be 30%, and the second volume proportion may be 70%.

[0067] The volume ratio of the coal gas to the air is determined according to the target oxygen content, wherein the volume ratio is the volume ratio of the coal gas to the air.

[0068] For example,

[0069] The gas flow rate, volume ratio and first volume proportion are calculated to obtain a first flow interval, and the gas flow rate, volume ratio and second volume proportion are calculated to obtain a second flow interval.

[0070] For example, the gas flow rate can be read from a gas flow meter, and the calculation formula for the first flow rate interval is:

[0071] V 空气 =V 煤气 ×α×y;

[0072] The calculation formula for the second flow interval is:

[0073] V 氧气 =V 煤气 ×α×z;

[0074] Among them, V 空气 is the first flow interval, V 煤气 is the gas flow rate, α is the volume ratio, y is the first volume ratio, and z is the second volume ratio.

[0075] Exemplarily, the oxygen is pure oxygen and the air is combustion-supporting air. The supply of pure oxygen is controlled by adjusting the ratio of pure oxygen to combustion-supporting air to ensure the stability of the flame and the flame temperature during combustion.

[0076] The target oxygen content is the oxygen enrichment rate, the oxygen enrichment rate is x%, and the total volume of oxygen-enriched air is 1: let the first volume proportion of air be y, and the second volume proportion of pure oxygen be z, where z=1-y, then:

[0077] 1×x%=y×21%z+z;

[0078] 1×x%=y×21%z+(1-y);

[0079] Therefore, if the oxygen enrichment rate in the preheating stage is 50%, it is obtained that air y=0.663, z=1-0.663=0.337.

[0080] The control method of the heating furnace in the present embodiment performs data calculation on the gas flow rate, volume ratio and the first volume proportion to obtain the first flow range, and performs data calculation on the gas flow rate, volume ratio and the second volume proportion to obtain the second flow range, thereby ensuring the accuracy of the first flow range and the second flow range, and further ensuring that the air flow in the air pipe and the oxygen flow in the oxygen pipe are in the optimal range.

[0081] In some embodiments, a method for controlling a heating furnace is provided in an embodiment of the present application, and the volume ratio of coal gas to air is determined according to a target oxygen content, comprising:

[0082] Step S401, obtaining a preset combustion ratio, where the combustion ratio is the volume ratio of coal gas to air when the coal gas is burned in the air;

[0083] Step S402, determining the volume ratio according to the combustion ratio and the target oxygen content.

[0084] In this embodiment, a preset combustion ratio is obtained, wherein the combustion ratio is the volume ratio of coal gas to air when the coal gas is burned in the air.

[0085] Determine the volume ratio based on the combustion ratio and target oxygen content.

[0086] Exemplarily, the volume ratio calculation formula is:

[0087] α=(α0×21%)÷x%;

[0088] Among them, α is the volume ratio, α0 is the volume ratio combustion ratio, and x% is the oxygen enrichment rate set during oxygen-rich combustion, that is, the target oxygen content.

[0089] The control method of the heating furnace in this embodiment determines the volume ratio according to the combustion ratio and the target oxygen content, thereby ensuring the accuracy of the volume ratio and further ensuring the accuracy of the first flow interval and the second flow interval.

[0090] In some embodiments, a method for controlling a heating furnace is provided in an embodiment of the present application. After detecting the flow rate of coal gas in a gas pipeline and obtaining the coal gas flow rate, the method further comprises:

[0091] Step S501, when the gas flow rate is less than the flow rate threshold, close the oxygen valve to cut off the oxygen pipeline.

[0092] In this embodiment, the heating furnace also includes an oxygen valve, which is arranged on the oxygen pipeline. When the gas flow rate is less than the flow rate threshold, it indicates that the gas supply is insufficient and the heating furnace cannot work normally. The oxygen valve is closed to cut off the oxygen pipeline, wherein the flow rate threshold is a preset threshold for the gas flow rate.

[0093] In some embodiments, an embodiment of the present application provides a method for controlling a heating furnace, detecting the flow rate of coal gas in a gas pipeline to obtain the coal gas flow rate, comprising:

[0094] Step S601, using a gas flow meter to detect the flow of gas in a gas pipeline to obtain a first flow;

[0095] Step S602, obtaining a preset detection delay time;

[0096] Step S603, after the detection delay time, re-detect the flow of gas in the gas pipeline to obtain a second flow;

[0097] Step S604: determining the gas flow rate according to the first flow rate and the second flow rate.

[0098] In this embodiment, the heating furnace further comprises a gas flow meter, which is arranged on the gas pipeline.

[0099] The flow rate of the gas in the gas pipeline is detected by a gas flow meter to obtain a first flow rate, wherein the first flow rate is the flow rate obtained by checking the gas for the first time.

[0100] A preset detection delay time is obtained, and after the detection delay time, the flow of gas in the gas pipeline is re-detected to obtain a second flow, wherein the second flow is the flow obtained by the second gas inspection.

[0101] Exemplarily, the detection delay duration may be specifically 1 minute.

[0102] The gas flow rate is determined based on the first flow rate and the second flow rate.

[0103] Exemplarily, the first flow rate and the second flow rate are averaged to obtain the gas flow rate.

[0104] The control method of the heating furnace in this embodiment detects the flow of gas in the gas pipeline through a gas flowmeter to obtain a first flow, and re-detects the flow of gas in the gas pipeline after a detection delay time to obtain a second flow, and then determines the gas flow based on the first flow and the second flow, thereby ensuring the accuracy of the gas flow.

[0105] In some embodiments, Figure 2 As shown, in an embodiment of the present application, a control device 700 for a heating furnace is provided, comprising:

[0106] The control unit 702 is used to detect the flow rate of the gas in the gas pipeline during the operation of the heating furnace to obtain the gas flow rate;

[0107] The processing unit 704 is used to determine the target oxygen content according to the gas flow rate;

[0108] The processing unit 704 is further used to determine a first flow interval corresponding to the air pipeline and a second flow interval corresponding to the oxygen pipeline according to the target oxygen content;

[0109] The control unit 702 is further used to adjust the flow rate of the air in the air duct so that the flow rate of the air is in a first flow rate interval;

[0110] The control unit 702 is further used to adjust the flow rate of oxygen in the oxygen pipeline so that the flow rate of oxygen is in the second flow rate range.

[0111] In this embodiment, a control device 700 for a heating furnace is proposed, wherein the heating furnace includes a gas pipeline, an air pipeline and an oxygen pipeline, wherein the heating furnace is a device for heating materials or workpieces (generally metals) to a rolling forging temperature, the gas pipeline is a pipeline for supplying gas, the air pipeline is a pipeline for supplying air, and the oxygen pipeline is a pipeline for supplying oxygen.

[0112] For example, mixing oxygen and air through an air duct and an oxygen duct can increase the oxygen content in the air, thereby improving the gas combustion efficiency.

[0113] During the operation of the heating furnace, the flow of the coal gas in the gas pipeline is detected to obtain the coal gas flow, wherein the coal gas flow represents the flow of the coal gas in the gas pipeline.

[0114] The target oxygen content is determined according to the gas flow rate, wherein the target oxygen content is the oxygen content corresponding to the gas flow rate.

[0115] Exemplarily, the target oxygen content is the optimal oxygen content corresponding to the coal gas flow rate, which can maximize the combustion efficiency of the coal gas.

[0116] According to the target oxygen content, a first flow interval corresponding to the air pipeline and a second flow interval corresponding to the oxygen pipeline are determined, wherein the first flow interval is the flow interval of air in the air pipeline, and the second flow interval is the flow interval of oxygen in the oxygen pipeline.

[0117] Exemplarily, based on the target oxygen content, a first flow interval of air in the air pipe and a second flow interval of oxygen in the oxygen pipe may be determined respectively.

[0118] The flow rate of air in the air pipeline is adjusted so that the flow rate of air is in a first flow rate interval, and the flow rate of oxygen in the oxygen pipeline is adjusted so that the flow rate of oxygen is in a second flow rate interval.

[0119] Exemplarily, a valve is provided in the air duct, and the flow rate of air in the air duct is adjusted by controlling the valve.

[0120] Exemplarily, a valve is provided in the oxygen pipeline, and the flow rate of oxygen in the oxygen pipeline is adjusted by controlling the valve.

[0121] The control device 700 of the heating furnace in this embodiment determines the target oxygen content according to the gas flow rate, and then determines the first flow range corresponding to the air duct and the second flow range corresponding to the oxygen duct according to the target oxygen content, thereby ensuring the accuracy of the target oxygen content and ensuring that the air flow in the air duct and the oxygen flow in the oxygen duct are in the optimal range, thereby improving the combustion efficiency of the heating furnace and reducing the energy consumption of the heating furnace.

[0122] In some embodiments, an embodiment of the present application provides a control device 700 for a heating furnace, further comprising:

[0123] The processing unit 704 is further used to obtain a plurality of preset gas flow intervals and a plurality of oxygen contents, wherein the plurality of gas flow intervals correspond to the plurality of oxygen contents in a one-to-one manner;

[0124] The processing unit 704 is further used to determine a target interval among a plurality of gas flow intervals according to the gas flow;

[0125] The processing unit 704 is further configured to determine a target oxygen content among the multiple oxygen contents based on the target interval.

[0126] In some embodiments, an embodiment of the present application provides a control device 700 for a heating furnace, further comprising:

[0127] The processing unit 704 is further used to determine a first volume percentage of air and a second volume percentage of oxygen according to the target oxygen content;

[0128] The processing unit 704 is further used to determine the volume ratio of the coal gas and the air according to the target oxygen content;

[0129] The processing unit 704 is further used to determine a first flow interval according to the gas flow, the volume ratio and the first volume proportion;

[0130] The processing unit 704 is further configured to determine a second flow range according to the gas flow rate, the volume ratio and the second volume proportion.

[0131] In some embodiments, an embodiment of the present application provides a control device 700 for a heating furnace, further comprising:

[0132] The processing unit 704 is further used to obtain a preset combustion ratio, where the combustion ratio is the volume ratio of the coal gas to the air when the coal gas is burned in the air;

[0133] The processing unit 704 is further used to determine the volume ratio according to the combustion ratio and the target oxygen content.

[0134] In some embodiments, an embodiment of the present application provides a control device 700 for a heating furnace, further comprising:

[0135] The control unit 702 is also used to close the oxygen valve to cut off the oxygen pipeline when the gas flow rate is less than the flow rate threshold.

[0136] In some embodiments, an embodiment of the present application provides a control device 700 for a heating furnace, further comprising:

[0137] The processing unit 704 is further configured to detect the flow rate of the gas in the gas pipeline through a gas flow meter to obtain a first flow rate;

[0138] The processing unit 704 is further used to obtain a preset detection delay time;

[0139] The processing unit 704 is further configured to re-detect the flow of the gas in the gas pipeline after the detection delay time to obtain a second flow;

[0140] The processing unit 704 is further configured to determine the gas flow rate according to the first flow rate and the second flow rate.

[0141] In some embodiments, Figure 3 As shown, a heating furnace control device 800 is proposed, and the heating furnace control device 800 includes a processor 802 and a memory 804. The memory 804 stores a computer program, and the computer program is executed by the processor 802 to implement the steps of the heating furnace control method in any of the above embodiments. Therefore, the heating furnace control device 800 has all the beneficial effects of the heating furnace control method in any of the above embodiments, which will not be repeated here.

[0142] In some embodiments, a readable storage medium is provided on which a program is stored. When the program is executed by a processor, the steps of the control method of the heating furnace in any of the above embodiments are implemented, thereby having all the beneficial technical effects of the control method of the heating furnace in any of the above embodiments.

[0143] In one embodiment according to the present application, a heating furnace is proposed, comprising: a control device for the heating furnace as in any of the above embodiments, and / or a readable storage medium as in any of the above embodiments, and thus having all the beneficial technical effects of the control device for the heating furnace as in any of the above embodiments, and / or the readable storage medium as in any of the above embodiments, which will not be elaborated herein.

[0144] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0145] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-readable program code.

[0146] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded computer, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0147] These computer program instructions may also be stored in a computer readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0148] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0149] An embodiment of the present application further provides a computer program product, which includes computer software instructions. When the computer software instructions are executed on a processing device, the processing device executes the process of the control method of the heating furnace.

[0150] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a server or a data center that includes one or more available media integration. The available medium can be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)), etc.

[0151] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0152] In the several embodiments provided in the present application, it should be understood that the disclosed devices, apparatuses and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, 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 an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0153] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0154] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0155] If the integrated unit is implemented in the form of 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 the present application is essentially 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, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0156] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

[0157] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.

[0158] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalents, this specification is also intended to include these modifications and variations.

Claims

1. A method for controlling a heating furnace, characterized in that: The heating furnace comprises a gas pipeline, an air pipeline and an oxygen pipeline, and the method comprises: During the operation of the heating furnace, the flow rate of the gas in the gas pipeline is detected to obtain the gas flow rate; determining a target oxygen content according to the gas flow rate; Determining a first flow interval corresponding to the air pipeline and a second flow interval corresponding to the oxygen pipeline according to the target oxygen content; adjusting the flow rate of air in the air duct so that the flow rate of the air is within the first flow rate range; The flow rate of oxygen in the oxygen pipeline is adjusted so that the flow rate of oxygen is within the second flow rate range.

2. The method according to claim 1, characterized in that Determining the target oxygen content according to the coal gas flow rate includes: Acquire a plurality of preset gas flow intervals and a plurality of oxygen contents, wherein the plurality of gas flow intervals correspond to the plurality of oxygen contents in a one-to-one manner; According to the gas flow rate, determining a target interval among the plurality of gas flow rate intervals; Based on the target interval, the target oxygen content among the plurality of oxygen contents is determined.

3. The method according to claim 1, characterized in that The step of determining a first flow interval corresponding to the air pipeline and a second flow interval corresponding to the oxygen pipeline according to the target oxygen content includes: Determining a first volume percentage of the air and a second volume percentage of the oxygen according to the target oxygen content; determining a volume ratio of the coal gas to the air according to the target oxygen content; determining the first flow range according to the gas flow, the volume ratio and the first volume proportion; The second flow range is determined according to the gas flow, the volume ratio and the second volume proportion.

4. The method according to claim 3, characterized in that Determining the volume ratio of the coal gas to the air according to the target oxygen content includes: Obtaining a preset combustion ratio, where the combustion ratio is the volume ratio of the coal gas to the air when the coal gas is burned in the air; The volume ratio is determined according to the combustion ratio and the target oxygen content.

5. The method according to any one of claims 1 to 4, characterized in that The heating furnace further comprises an oxygen valve, and the oxygen valve is arranged on the oxygen pipeline. After the flow rate of the coal gas in the coal gas pipeline is detected and the coal gas flow rate is obtained, the method further comprises: When the coal gas flow rate is less than the flow rate threshold, the oxygen valve is closed to cut off the oxygen pipeline.

6. The method according to any one of claims 1 to 4, characterized in that The heating furnace further comprises a gas flow meter, which is arranged on the gas pipeline. The gas flow in the gas pipeline is detected to obtain the gas flow, including: Detecting the flow of gas in the gas pipeline by the gas flow meter to obtain a first flow; Get the preset detection delay time; After the detection delay time, re-detecting the flow of gas in the gas pipeline to obtain a second flow; The gas flow rate is determined according to the first flow rate and the second flow rate.

7. A control device for a heating furnace, characterized in that: The heating furnace includes a gas pipeline, an air pipeline and an oxygen pipeline, and the device includes: A control unit, used for detecting the flow rate of the gas in the gas pipeline during the operation of the heating furnace to obtain the gas flow rate; A processing unit, used for determining a target oxygen content according to the coal gas flow rate; The processing unit is further used to determine a first flow interval corresponding to the air pipeline and a second flow interval corresponding to the oxygen pipeline according to the target oxygen content; The control unit is further used to adjust the flow rate of the air in the air duct so that the flow rate of the air is within the first flow rate range; The control unit is further used to adjust the flow rate of oxygen in the oxygen pipeline so that the flow rate of oxygen is within the second flow rate range.

8. A control device for a heating furnace, characterized in that: include: processor; A memory, wherein a program or instruction is stored in the memory, and when the processor executes the program or instruction in the memory, the steps of the control method of the heating furnace as claimed in any one of claims 1 to 6 are implemented.

9. A readable storage medium, characterized in that: The readable storage medium stores a program or an instruction, and when the program or the instruction is executed by the processor, the steps of the control method of the heating furnace as claimed in any one of claims 1 to 6 are implemented.

10. A heating furnace, characterized in that: include: The control device of the heating furnace according to claim 7 or 8; and / or The readable storage medium as claimed in claim 9.

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