A method and device for controlling air volume of a heating stove, the heating stove and a storage medium

Abstract

This invention discloses a method, device, boiler, and storage medium for controlling the airflow of a heating boiler. The method includes: acquiring the current fan speed of the boiler after a change in the external environment; determining a reference fan airflow corresponding to the current fan speed under a reference fan condition; determining a current fan airflow corresponding to the current fan speed based on the reference fan airflow; determining a reference fan speed under the reference fan condition based on the reference fan airflow; and determining a target fan speed based on the reference fan speed, thereby controlling the boiler's fan output to generate the target fan airflow. This invention aims to improve the utilization rate of the boiler's fan capacity and enhance its wind resistance and adaptability to different environmental conditions such as high altitudes.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of air volume control technology, and in particular to a method, device, boiler and storage medium for controlling the air volume of a heating boiler. Background Technology

[0002] A heating boiler, also known as a thermal boiler, is a type of domestic boiler used for heating purposes. It is a type of atmospheric pressure boiler designed to meet people's heating needs and falls under the category of domestic hot water boilers. During combustion, the operation of a heating boiler is affected by factors such as altitude, wind speed, temperature, and humidity. With a fixed amount of fuel gas, variations in airflow can significantly impact the combustion process, leading to increased or even excessive levels of harmful substances such as carbon monoxide and nitrogen oxides in the exhaust gas. This can negatively affect the external environment and harm the health of users.

[0003] Currently, air volume compensation for heating boilers is mainly achieved through constant speed control and constant torque control schemes. The constant speed control scheme compensates for air volume by increasing a fixed speed, but due to changes in the external environment, it is difficult to ensure that the compensated air volume is close to the ideal state. The constant torque control scheme compensates for air volume by only using a fixed output torque value. It will report a fault before the exhaust harmful substances exceed the standard. If the automatic fan speed is changed when the external environment changes, and the compensated air volume cannot reach the required air volume, the content of harmful substances will increase, the fan will not reach its maximum power, and the fan utilization rate will not be maximized. Summary of the Invention

[0004] This invention provides a method, device, furnace, and storage medium for controlling the air volume of a heating furnace, thereby improving the utilization rate of the furnace's fan capacity and enhancing its wind resistance and adaptability to different environmental conditions such as high altitudes.

[0005] In a first aspect, embodiments of the present invention provide a method for controlling the air volume of a heating boiler, the method comprising:

[0006] After the external environment of the heating boiler changes, the current fan speed of the heating boiler is obtained, and the reference fan air volume corresponding to the current fan speed under the reference fan state is determined based on the current fan speed.

[0007] The current fan speed corresponding to the current fan speed is determined based on the reference fan air volume, and the reference fan speed under the reference fan state is determined based on the current fan air volume.

[0008] The target fan speed is determined based on the reference fan speed, so as to control the output air volume of the heating boiler fan according to the target fan speed.

[0009] Optionally, after obtaining the current fan speed of the heating boiler, the following may also be included:

[0010] Determine whether the current fan speed is greater than the start-up air supply speed. If so, control the heating boiler to send a fan air supply command.

[0011] Optionally, before obtaining the current fan speed of the heating boiler, the following may also be included:

[0012] Obtain the initial fan speed of the heating boiler under the fan reference state and the initial fan air volume corresponding to the initial fan speed.

[0013] Optionally, determining the reference fan air volume corresponding to the current fan speed under the current fan reference state based on the current fan speed includes:

[0014] The reference fan air volume corresponding to the current fan speed under the fan reference state is determined according to the following formula;

[0015]

[0016] Where r2 is the current fan speed; r1 is the initial fan speed; Q1 is the initial fan air volume; and Q2 is the reference fan air volume.

[0017] Optionally, determining the current fan airflow corresponding to the current fan speed based on the reference fan airflow includes:

[0018] The current fan air volume corresponding to the current fan speed is determined according to the following formula;

[0019]

[0020] Where Q3 is the current fan air volume.

[0021] Optionally, determining the reference fan speed under the reference state based on the current fan air volume includes:

[0022] The reference fan speed under the aforementioned reference state is determined according to the following formula;

[0023]

[0024] Where r3 is the reference fan speed.

[0025] Optionally, the air volume control method for the heating boiler further includes:

[0026] Obtain the set fan speed and determine the historical reference fan speed based on the set fan speed and the historical target fan speed;

[0027] The historical target speed is determined based on the historical baseline wind turbine speed and the historical target wind turbine speed, and the historical target speed is used as the current wind turbine speed.

[0028] Secondly, embodiments of the present invention also provide an airflow control device for a heating boiler, the airflow control device for the heating boiler comprising:

[0029] The reference fan air volume determination module is used to obtain the current fan speed of the heating boiler after the external environment of the heating boiler changes, and to determine the reference fan air volume corresponding to the current fan speed under the reference fan state based on the current fan speed.

[0030] A reference fan speed determination module is used to determine the current fan air volume corresponding to the current fan speed based on the reference fan air volume, and to determine the reference fan speed in the reference state based on the current fan air volume.

[0031] The target fan speed determination module is used to determine the target fan speed based on the reference fan speed, so as to control the fan output of the heating boiler to the target fan air volume according to the target fan speed.

[0032] Thirdly, embodiments of the present invention also provide a heating stove, which includes:

[0033] One or more processors;

[0034] Storage device for storing multiple programs.

[0035] When at least one of the plurality of programs is executed by the one or more processors, the one or more processors implement the air volume control method for a heating furnace provided in the first aspect embodiment of the present invention.

[0036] Fourthly, embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a method for controlling the air volume of a heating furnace provided in the first aspect of the present invention.

[0037] The technical solution of this invention obtains the current fan speed of the heating boiler after the external environment changes, and determines the reference fan air volume corresponding to the current fan speed in the reference fan state based on the current fan speed; determines the current fan air volume corresponding to the current fan speed based on the reference fan air volume, and determines the reference fan speed in the reference fan state based on the current fan air volume; determines the target fan speed based on the reference fan speed, and controls the output of the heating boiler fan to the target fan air volume according to the target fan speed. This solves the problems of existing heating boiler air volume compensation methods, which struggle to ensure that the compensated air volume is close to the ideal state, and where, if the compensated air volume cannot reach the required air volume when the fan speed is automatically changed, the content of harmful substances will increase, the fan will not reach its maximum power, and the fan utilization rate will not be maximized. This solution improves the utilization rate of the heating boiler fan capacity and enhances the heating boiler's wind resistance and adaptability to different environmental conditions such as high altitudes. Attached Figure Description

[0038] Figure 1 This is a flowchart of a method for controlling the air volume of a heating furnace according to Embodiment 1 of the present invention;

[0039] Figure 2 This is a flowchart of a method for controlling the air volume of a heating furnace according to Embodiment 2 of the present invention;

[0040] Figure 3 This is a flowchart of a method for controlling the air volume of a heating furnace according to Embodiment 3 of the present invention;

[0041] Figure 4 This is a structural diagram of an air volume control device for a heating furnace provided in Embodiment 4 of the present invention;

[0042] Figure 5 This is a schematic diagram of the hardware structure of a heating furnace provided in Embodiment 5 of the present invention. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the present invention clearer, specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0044] It should also be noted that, for ease of description, the accompanying drawings show only the parts relevant to the invention and not all of them. Before discussing exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of the operations can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but it may also have additional steps not included in the drawings. The process may correspond to a method, function, procedure, subroutine, subprogram, etc.

[0045] A constant torque fan is a control scheme for boiler fans that outputs stable torque. After the boiler fan stabilizes, as the boiler load increases, the output torque of the boiler fan is maintained by adjusting the boiler output voltage, etc., thus increasing the boiler fan speed, and vice versa. Therefore, under the same external environment, the air volume of a boiler fan based on a constant torque fan equals the boiler speed multiplied by the cross-sectional area of ​​the boiler flue. With the same flue cross-sectional area, the air volume changes with the boiler fan speed. However, it is difficult to guarantee that the compensated air volume will be close to the ideal state based on changes in the external environment. On the other hand, a control scheme that only increases air volume through constant torque itself, automatically changing the fan speed when the external environment changes by maintaining a constant phase current, will not be able to achieve the required air volume, leading to increased levels of harmful substances, the fan not reaching its maximum power, and insufficient fan utilization.

[0046] In summary, the embodiments of the present invention provide a method, device, boiler, and storage medium for controlling the air volume of a heating boiler to address the above-mentioned problems.

[0047] Example 1

[0048] Figure 1 This is a flowchart of a method for controlling the air volume of a heating boiler according to Embodiment 1 of the present invention. This embodiment is applicable to situations where the air volume of a heating boiler is dynamically compensated and controlled based on a constant torque fan. The air volume control method for the heating boiler can be executed by an air volume control device for the heating boiler, which can be implemented in software and / or hardware. The air volume control method for the heating boiler specifically includes the following steps:

[0049] S110. After the external environment of the heating boiler changes, obtain the current fan speed of the heating boiler, and determine the reference fan air volume corresponding to the current fan speed under the reference fan state based on the current fan speed.

[0050] The external environment of the heating furnace refers to the environment in which the heating furnace is located. This environment can be the geographical environment of the heating furnace, such as the altitude, wind speed, temperature, and humidity of the area where the heating furnace is located.

[0051] The current fan speed is the fan speed detected when the external environment of the heating boiler changes. The reference fan volume is the fan volume corresponding to the current fan speed under the reference fan condition, that is, the fan volume corresponding to the current fan speed in theory.

[0052] It is understandable that after the external environment of the heating boiler changes, the reference fan air volume can be greater than the actual fan air volume corresponding to the current fan speed, or the reference fan air volume can be less than the actual fan air volume corresponding to the current fan speed. The reference fan air volume is determined by the actual external environment of the heating boiler at present, and this embodiment does not impose any restrictions on it.

[0053] In this embodiment, dynamic fan air supply control is only performed when the difference between the actual fan air volume corresponding to the current fan speed and the reference fan air volume is greater than a certain range. Based on the above embodiment, after obtaining the current fan speed of the heating boiler, the method further includes: determining whether the current fan speed is greater than the start-up air supply speed; if so, controlling the heating boiler to send a fan air supply command.

[0054] The starting speed of the supplementary air is the starting speed at which the heating boiler dynamically supplements the air volume of the fan. The starting speed of the supplementary air can be selected and set by those skilled in the art according to the actual situation of the heating boiler or the external environment. This embodiment does not impose any restrictions on this.

[0055] The fan make-up air command is generated by the heating boiler when it determines that the current fan speed is greater than the start-up make-up air speed. The fan make-up air command is used by the heating boiler to control its fans to dynamically supplement the fan air volume.

[0056] Specifically, after the external environment of the heating boiler changes, the current fan speed of the heating boiler is obtained. If it is determined that the current fan speed is greater than the start-up air supply speed, the heating boiler is controlled to send a fan supply air command to control the heating boiler to start the fan for dynamic fan air volume compensation. If it is determined that the current fan speed is not greater than the start-up air supply speed, the current fan state is maintained to ensure the normal combustion control of the heating boiler.

[0057] Furthermore, based on the above embodiments, before obtaining the current fan speed of the heating boiler, the method further includes: obtaining the initial fan speed of the heating boiler under the fan reference state and the initial fan air volume corresponding to the initial fan speed.

[0058] Specifically, when the heating boiler is in a normal external environment and maintains normal combustion, that is, when the heating boiler is in the fan reference state, under the premise that the cross-sectional area of ​​the flue of the heating boiler remains unchanged, the initial fan speed and the initial fan air volume of the heating boiler are directly proportional. That is, as the initial fan speed increases, the initial fan air volume increases, and conversely, as the initial fan speed decreases, the initial fan air volume decreases.

[0059] Based on the above, determining the reference fan air volume corresponding to the current fan speed under the fan reference state according to the current fan speed includes: determining the reference fan air volume corresponding to the current fan speed under the fan reference state according to the following formula;

[0060]

[0061] Where r2 is the current fan speed; r1 is the initial fan speed; Q1 is the initial fan air volume; and Q2 is the reference fan air volume.

[0062] For example, after the external environment of the heating boiler changes, the current fan speed of the heating boiler is obtained. From the relationship between the fan speed and the fan air volume when the heating boiler is in the fan reference state, it can be known that... The reference fan air volume Q2 is

[0063] S120. Determine the current fan air volume corresponding to the current fan speed based on the reference fan air volume, and determine the reference fan speed under the reference fan state based on the current fan air volume.

[0064] Based on the above embodiments, determining the current fan air volume corresponding to the current fan speed according to the reference fan air volume includes: determining the current fan air volume corresponding to the current fan speed according to the following formula;

[0065]

[0066] Where Q3 is the current fan air volume.

[0067] Among them, due to the change in the external environment of the heating boiler, the current fan air volume Q3 is less than the reference fan air volume Q2, and the reference fan air volume Q2 is less than the initial fan air volume Q1.

[0068] In this embodiment, it is assumed that the current fan air volume and the difference between Q3 and the initial fan air volume Q1, and the difference between the reference fan air volume Q2 and the initial fan air volume Q1 are equal. Then Q3-Q1=Q1-Q2, and further, Q3=2Q1-Q2.

[0069] Furthermore, considering the baseline fan air volume Q2 as Q2 = Q1 * M, the current fan air volume Q3 is Q3 = 2Q1 - Q2 = Q1 * (2 - M).

[0070] Based on the above embodiments, determining the reference fan speed under the reference fan state according to the current fan air volume includes:

[0071] The reference fan speed under the aforementioned reference state is determined according to the following formula;

[0072]

[0073] Where r3 is the reference fan speed.

[0074] For example, when the heating boiler is in a normal external environment and maintains normal combustion, i.e., when the heating boiler is in the fan reference state, then, assuming the cross-sectional area of ​​the boiler flue remains unchanged, the initial fan speed and the initial fan air volume are directly proportional. Therefore, in the fan reference state, the reference fan speed r3 corresponding to the current fan air volume Q3 is:

[0075] S130. Determine the target fan speed based on the reference fan speed, so as to control the fan output of the heating boiler to the target fan air volume according to the target fan speed.

[0076] In this embodiment, the air volume of the heating boiler is dynamically compensated and controlled based on a constant torque fan. Under the premise of a certain power, the fan speed and the fan torque of the heating boiler are inversely proportional. That is to say, the higher the fan speed of the heating boiler, the lower the fan torque; the lower the fan speed of the heating boiler, the stronger the fan torque.

[0077] Specifically, determining the target fan speed based on the reference fan speed involves: determining the required output torque based on the reference fan speed, controlling the boiler fan based on the required output torque to output the target fan speed, and controlling the boiler fan to output the target fan air volume based on the target fan speed.

[0078] To ensure the boiler's fan reaches a balanced state and can stably output a certain air volume, thus achieving ideal air-fuel ratio control and maximizing fan power utilization, the boiler's air volume control method, based on the above embodiments, further includes: obtaining a set fan speed and determining a historical reference fan speed based on the set fan speed and the historical target fan speed; determining a historical set target speed based on the historical reference fan speed and the historical target fan speed, and using the historical set target speed as the current fan speed.

[0079] The technical solution of this invention obtains the current fan speed of the heating boiler after the external environment changes, and determines the reference fan air volume corresponding to the current fan speed in the reference fan state based on the current fan speed; determines the current fan air volume corresponding to the current fan speed based on the reference fan air volume, and determines the reference fan speed in the reference fan state based on the current fan air volume; determines the target fan speed based on the reference fan speed, and controls the output of the heating boiler fan to the target fan air volume according to the target fan speed. This solves the problems of existing heating boiler air volume compensation methods, which struggle to ensure that the compensated air volume is close to the ideal state, and where, if the compensated air volume cannot reach the required air volume when the fan speed is automatically changed, the content of harmful substances will increase, the fan will not reach its maximum power, and the fan utilization rate will not be maximized. This solution improves the utilization rate of the heating boiler fan capacity and enhances the heating boiler's wind resistance and adaptability to different environmental conditions such as high altitudes.

[0080] Example 2

[0081] Figure 2 This is a flowchart of a heating boiler air volume control method provided in Embodiment 2 of the present invention. This embodiment is an optimization based on the above embodiment.

[0082] Accordingly, the air volume control method for the heating boiler in this embodiment specifically includes:

[0083] S210. After the external environment of the heating boiler changes, obtain the initial fan speed r1 of the heating boiler under the fan reference state and the initial fan air volume Q1 corresponding to the initial fan speed, and obtain the current fan speed r2 of the heating boiler.

[0084] Based on the above embodiments, after obtaining the current fan speed of the heating boiler, the method further includes: determining whether the current fan speed is greater than the start-up air supply speed; if so, controlling the heating boiler to send a fan air supply command. If the current fan speed is not greater than the start-up air supply speed, maintaining the current fan state ensures normal combustion control of the heating boiler.

[0085] S220. Determine the reference fan air volume corresponding to the current fan speed under the reference fan state based on the current fan speed.

[0086] Specifically, the reference fan air volume corresponding to the current fan speed under the fan reference state is determined according to the following formula;

[0087]

[0088] Where r2 is the current fan speed; r1 is the initial fan speed; Q1 is the initial fan air volume; and Q2 is the reference fan air volume.

[0089] For example, after the external environment of the heating boiler changes, the current fan speed of the heating boiler is obtained. From the relationship between the fan speed and the fan air volume when the heating boiler is in the fan reference state, it can be known that... The reference fan air volume Q2 is

[0090] S230. Determine the current fan air volume corresponding to the current fan speed based on the reference fan air volume.

[0091] Specifically, assuming that the current fan air volume Q3 and the difference between the initial fan air volume Q1, and the difference between the reference fan air volume Q2 and the initial fan air volume Q1, are equal, then Q3-Q1=Q1-Q2, and further, Q3=2Q1-Q2.

[0092] Furthermore, the current fan air volume corresponding to the current fan speed is determined according to the following formula;

[0093]

[0094] Where Q3 is the current fan air volume.

[0095] S240. Determine the reference fan speed under the reference state of the fan based on the current fan air volume.

[0096] Specifically, the reference fan speed under the reference fan condition is determined according to the following formula;

[0097]

[0098] Where r3 is the reference fan speed.

[0099] S250. Determine the target fan speed based on the reference fan speed, so as to control the fan output of the heating boiler to the target fan air volume according to the target fan speed.

[0100] After determining the target fan speed, in order to obtain a fan speed that makes the fan air volume closer to the ideal requirement, the air volume control method of the heating boiler further includes, based on the above embodiment: obtaining a set fan speed, and determining a historical reference fan speed according to the set fan speed and the historical target fan speed; determining a historical set target speed according to the historical reference fan speed and the historical target fan speed, so as to use the historical set target speed as the current fan speed.

[0101] The technical solution of this invention, as the external environment of the heating boiler changes, dynamically compensates for the fan air volume of the heating boiler by controlling the fan air volume, thereby improving the utilization rate of the fan capacity, making the air-fuel ratio of the heating boiler close to the ideal state, reducing the content of harmful substances in the flue gas of the heating boiler, improving the combustion efficiency of the heating boiler, improving the wind resistance and high altitude adaptability of the heating boiler, and improving the comfort of users.

[0102] Example 3

[0103] Figure 3 This is a flowchart illustrating a method for controlling the airflow of a heating boiler according to Embodiment 3 of the present invention. The technical solution of this embodiment is a further optimization based on the above embodiments. Specifically, the airflow control method for the heating boiler in this embodiment includes:

[0104] S310. After the external environment of the heating boiler changes, obtain the current fan speed of the heating boiler, and obtain the initial fan speed of the heating boiler under the fan reference state and the initial fan air volume corresponding to the initial fan speed.

[0105] S320. Determine whether the current fan speed is greater than the start-up air supply speed. If yes, proceed to step S340; otherwise, proceed to step S330.

[0106] Understandably, after the external environment of the heating boiler changes, the current fan speed of the heating boiler is obtained. If it is determined that the current fan speed is greater than the start-up air supply speed, the heating boiler is controlled to send a fan supply command to control the heating boiler to start the fan for dynamic fan air volume compensation.

[0107] S330. Maintain the current fan status to ensure normal combustion control of the heating boiler.

[0108] S340. Determine the reference fan air volume corresponding to the current fan speed under the reference fan state based on the current fan speed.

[0109] Based on the above, the reference fan air volume corresponding to the current fan speed under the fan reference state is determined according to the following formula;

[0110]

[0111] Where r2 is the current fan speed; r1 is the initial fan speed; Q1 is the initial fan air volume; and Q2 is the reference fan air volume.

[0112] For example, after the external environment of the heating boiler changes, the current fan speed of the heating boiler is obtained. From the relationship between the fan speed and the fan air volume when the heating boiler is in the fan reference state, it can be known that... The reference fan air volume Q2 is

[0113] S350. Determine the current fan air volume corresponding to the current fan speed based on the reference fan air volume.

[0114] Specifically, assuming that the current fan air volume Q3 and the difference between the initial fan air volume Q1, and the difference between the reference fan air volume Q2 and the initial fan air volume Q1, are equal, then Q3-Q1=Q1-Q2, and further, Q3=2Q1-Q2.

[0115] Based on the above, the current fan air volume corresponding to the current fan speed is determined according to the following formula;

[0116]

[0117] Where Q3 is the current fan air volume.

[0118] S360. Determine the reference fan speed under the reference state of the fan based on the current fan air volume.

[0119] Based on the above, the reference fan speed under the stated reference state is determined according to the following formula;

[0120]

[0121] Where r3 is the reference fan speed.

[0122] S370. Determine the target fan speed based on the reference fan speed, so as to control the fan output of the heating boiler to the target fan air volume according to the target fan speed.

[0123] S380. Obtain the set fan speed and determine the historical reference fan speed based on the set fan speed and the historical target fan speed.

[0124] Based on the above, assuming the target fan speed r4 is used as the historical target fan speed and the fan speed r5 is set, the historical reference fan speed is determined according to the following formula:

[0125]

[0126] Where r′3 is the historical reference wind turbine speed.

[0127] S390. Determine the historical set target speed based on the historical reference wind turbine speed and the historical target wind turbine speed, so as to use the historical set target speed as the current wind turbine speed.

[0128] Based on the above, the historical target rotational speed is determined according to the following formula:

[0129]

[0130] Where r′2 is the historical target rotational speed.

[0131] Therefore, in this embodiment, by executing steps S380 and S390, the historical target speed r′2 after the change of the external environment of the heating boiler is obtained. The historical target speed r′2 is used as the new current fan speed and step S310 is executed again. The above calculation process is repeated, and finally the fan control balance of the heating boiler is achieved. The fan outputs a certain amount of air, thereby controlling the heating boiler to achieve the ideal air-fuel ratio, realizing the maximum utilization rate of the fan power, and improving the user's comfort.

[0132] It should also be noted that after the heating boiler sends a fan replenishment command to control the heating boiler to start the fan for dynamic fan volume compensation, when the fan volume of the heating boiler reaches the required fan volume, the current fan compensation state is maintained, that is, the current fan state is maintained to ensure the normal combustion control of the heating boiler.

[0133] Example 4

[0134] Figure 4 This is a structural diagram of an air volume control device for a heating furnace provided in Embodiment 4 of the present invention. This embodiment is applicable to situations where the air volume of a heating furnace is dynamically compensated and controlled based on a constant torque fan.

[0135] like Figure 4 As shown, the air volume control device for the heating boiler includes: a reference fan air volume determination module 410, a reference fan speed determination module 420, and a target fan speed determination module 430, wherein:

[0136] The reference fan air volume determination module 410 is used to obtain the current fan speed of the heating furnace after the external environment of the heating furnace changes, and to determine the reference fan air volume corresponding to the current fan speed in the reference state of the fan based on the current fan speed.

[0137] The reference fan speed determination module 420 is used to determine the current fan air volume corresponding to the current fan speed based on the reference fan air volume, and to determine the reference fan speed in the reference state based on the current fan air volume.

[0138] The target fan speed determination module 430 is used to determine the target fan speed based on the reference fan speed, so as to control the fan output of the heating furnace to the target fan air volume according to the target fan speed.

[0139] The airflow control device for the heating boiler in this embodiment acquires the current fan speed of the heating boiler after a change in the external environment, and determines the reference fan airflow corresponding to the current fan speed under the fan reference state. It then determines the current fan airflow corresponding to the current fan speed based on the reference fan airflow, and determines the reference fan speed under the fan reference state based on the current fan airflow. Finally, it determines the target fan speed based on the reference fan speed, and controls the boiler fan to output the target fan airflow according to the target fan speed. This solves the problems of existing heating boiler airflow compensation methods, which struggle to ensure the compensated airflow is close to the ideal state, and where, if the compensated airflow cannot reach the required airflow when the fan speed is automatically changed, the content of harmful substances will increase, the fan will not reach its maximum power, and the fan utilization rate will not be maximized. This improves the utilization rate of the heating boiler fan capacity and enhances the heating boiler's wind resistance and adaptability to different environmental conditions such as high altitudes.

[0140] Based on the above embodiments, after obtaining the current fan speed of the heating boiler, the method further includes:

[0141] Determine whether the current fan speed is greater than the start-up air supply speed. If so, control the heating boiler to send a fan air supply command.

[0142] Based on the above embodiments, before obtaining the current fan speed of the heating boiler, the method further includes:

[0143] Obtain the initial fan speed of the heating boiler under the fan reference state and the initial fan air volume corresponding to the initial fan speed.

[0144] Based on the above embodiments, determining the reference fan air volume corresponding to the current fan speed under the reference fan state, according to the current fan speed, includes:

[0145] The reference fan air volume corresponding to the current fan speed under the fan reference state is determined according to the following formula;

[0146]

[0147] Where r2 is the current fan speed; r1 is the initial fan speed; Q1 is the initial fan air volume; and Q2 is the reference fan air volume.

[0148] Based on the above embodiments, determining the current fan airflow corresponding to the current fan speed according to the reference fan airflow includes:

[0149] The current fan air volume corresponding to the current fan speed is determined according to the following formula;

[0150]

[0151] Where Q3 is the current fan air volume.

[0152] Based on the above embodiments, determining the reference fan speed under the reference state of the fan according to the current fan air volume includes:

[0153] The reference fan speed under the aforementioned reference state is determined according to the following formula;

[0154]

[0155] Where r3 is the reference fan speed.

[0156] Based on the above embodiments, the air volume control method for the heating boiler further includes:

[0157] Obtain the set fan speed and determine the historical reference fan speed based on the set fan speed and the historical target fan speed;

[0158] The historical target speed is determined based on the historical baseline wind turbine speed and the historical target wind turbine speed, and the historical target speed is used as the current wind turbine speed.

[0159] The air volume control device for the heating furnace provided in the above embodiments can execute the air volume control method for the heating furnace provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the air volume control method for the heating furnace.

[0160] Example 5

[0161] Figure 5 This is a schematic diagram of the structure of a heating furnace provided in Embodiment 5 of the present invention, as shown below. Figure 5 As shown, the heating boiler includes a processor 510, a memory 520, an input device 530, and an output device 540; the number of processors 510 in the heating boiler can be one or more. Figure 5 Taking a processor 510 as an example; the processor 510, memory 520, input device 530, and output device 540 in the heating boiler can be connected via a bus or other means. Figure 5 Taking the example of a connection between China and Israel via a bus.

[0162] The memory 520, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the airflow control method of the heating boiler in this embodiment of the invention (e.g., the reference fan airflow determination module 410, the reference fan speed determination module 420, and the target fan speed determination module 430 in the airflow control device of the heating boiler). The processor 510 executes various functional applications and data processing of the heating boiler by running the software programs, instructions, and modules stored in the memory 520, thereby realizing the aforementioned airflow control method of the heating boiler.

[0163] The memory 520 may primarily include a program storage area and a data storage area. The program storage area may store the operating system and at least one application program required for a given function; the data storage area may store data created based on terminal usage. Furthermore, the memory 520 may include high-speed random access memory and non-volatile memory, such as at least one disk storage device, flash memory, or other non-volatile solid-state storage device. In some instances, the memory 520 may further include memory remotely located relative to the processor 510, which can be connected to the boiler via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0164] Input device 530 can be used to receive input digital or character information, and to generate key signal inputs related to user settings and function control of the heating boiler. Output device 540 may include display devices such as a display screen.

[0165] Example 6

[0166] Embodiment 6 of the present invention also provides a storage medium containing computer-executable instructions, which, when executed by a computer processor, are used to execute a method for controlling the airflow of a heating boiler. The method for controlling the airflow of the heating boiler includes:

[0167] After the external environment of the heating boiler changes, the current fan speed of the heating boiler is obtained, and the reference fan air volume corresponding to the current fan speed under the reference fan state is determined based on the current fan speed.

[0168] The current fan speed corresponding to the current fan speed is determined based on the reference fan air volume, and the reference fan speed under the reference fan state is determined based on the current fan air volume.

[0169] The target fan speed is determined based on the reference fan speed, so as to control the output air volume of the heating boiler fan according to the target fan speed.

[0170] Of course, the computer-executable instructions provided in the embodiments of the present invention are not limited to the method operations described above, but can also perform related operations in the air volume control method of the heating furnace provided in any embodiment of the present invention.

[0171] Based on the above description of the implementation methods, those skilled in the art can clearly understand that the present invention can be implemented using software and necessary general-purpose hardware, and of course, it can also be implemented using hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk, or optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0172] It is worth noting that in the embodiments of the air volume control device for the heating boiler described above, the various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of each functional unit are only for easy differentiation and are not used to limit the scope of protection of the present invention.

[0173] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A method of controlling the air volume of a heating stove, characterized by, include: After the external environment of the heating boiler changes, the current fan speed of the heating boiler is obtained, and the reference fan air volume corresponding to the current fan speed under the reference fan state is determined based on the current fan speed. Based on the initial fan speed of the heating boiler under the fan reference state and the initial fan air volume corresponding to the initial fan speed, the current fan speed and the reference fan air volume, the current fan air volume is determined, and the reference fan speed under the fan reference state is determined based on the current fan air volume, wherein the initial fan air volume is directly proportional to the initial fan speed; wherein determining the reference fan air volume corresponding to the current fan speed under the fan reference state based on the current fan speed includes: The reference fan air volume corresponding to the current fan speed under the fan reference state is determined according to the following formula; ； Determining the current fan airflow corresponding to the current fan speed based on the reference fan airflow includes: The current fan air volume corresponding to the current fan speed is determined according to the following formula; ； in, The current fan speed; The initial fan speed; The current fan air volume; The initial fan air volume; The reference fan air volume; The target fan speed is determined based on the reference fan speed, so as to control the output air volume of the heating boiler fan according to the target fan speed.

2. The air volume control method for a heating boiler according to claim 1, characterized in that, After obtaining the current fan speed of the heating boiler, the following is also included: Determine whether the current fan speed is greater than the start-up air supply speed. If so, control the heating boiler to send a fan air supply command.

3. The air volume control method for a heating boiler according to claim 1, characterized in that, Determining the reference fan speed under the reference state based on the current fan air volume includes: The reference fan speed under the aforementioned reference state is determined according to the following formula; ； in, The reference fan speed is denoted as .

4. The air volume control method for a heating boiler according to claim 1, characterized in that, The air volume control method for the heating boiler also includes: Obtain the set fan speed and determine the historical reference fan speed based on the set fan speed and the historical target fan speed; The historical target speed is determined based on the historical baseline wind turbine speed and the historical target wind turbine speed, and the historical target speed is used as the current wind turbine speed.

5. A heating boiler air volume control device, characterized in that, A method for controlling airflow in a heating boiler according to any one of claims 1-4, comprising: The reference fan air volume determination module is used to obtain the current fan speed of the heating boiler after the external environment of the heating boiler changes, and to determine the reference fan air volume corresponding to the current fan speed under the reference fan state based on the current fan speed. The reference fan speed determination module is used to determine the current fan volume corresponding to the current fan speed based on the initial fan speed of the heating boiler in the fan reference state, the initial fan volume corresponding to the initial fan speed, the current fan speed, and the reference fan volume, and to determine the reference fan speed in the fan reference state based on the current fan volume, wherein the initial fan volume is directly proportional to the initial fan speed; The target fan speed determination module is used to determine the target fan speed based on the reference fan speed, so as to control the fan output of the heating boiler to the target fan air volume according to the target fan speed.

6. A heating stove, characterized in that, The heating furnace includes: One or more processors; Storage device for storing one or more programs; When the one or more programs are executed by the one or more processors, the one or more processors implement the air volume control method for the heating boiler as described in any one of claims 1-4.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the air volume control method for the heating boiler as described in any one of claims 1-4.

Images