A wall-hanging stove, a wall-hanging stove control method and device

Abstract

The application relates to the technical field of electric appliances, and discloses a wall-hanging stove, a wall-hanging stove control method and a device, wherein the wall-hanging stove control method comprises the following steps: controlling a fan operation parameter of the wall-hanging stove to be a preset first parameter value, so as to ignite the wall-hanging stove; after the wall-hanging stove is successfully ignited, adjusting the fan operation parameter from the first parameter value to a second parameter value, and controlling the fan to operate according to the second parameter value for a preset first time length; the second parameter value is smaller than the first parameter value; so that the interval time from the successful ignition to the extinguishing can be long, the water in a water pipe connected with the wall-hanging stove can further reach the extinguishing condition, the water in the water pipe connected with the wall-hanging stove can be maintained at a heating setting temperature in the process of one-time ignition and extinguishing or multiple-time ignition and extinguishing, and the problem of poor heating effect of the wall-hanging stove in the use process is solved.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment, specifically to a wall-hung boiler, a wall-hung boiler control method, and a device. Background Technology

[0002] Wall-mounted boilers have powerful home heating capabilities, meeting the heating needs of multiple rooms. Each room can be set to a comfortable temperature according to its requirements, and heating can be turned off in a specific room as needed. They also provide a large flow of constant-temperature hot water for use in family bathing, kitchens, and other areas.

[0003] When using a wall-hung boiler, it is necessary to set the start-stop temperature difference. When the boiler has a high heating efficiency, if the start-stop temperature difference is small and / or the water flow is low, the boiler may experience poor heating performance during use. Summary of the Invention

[0004] In view of this, the present invention provides a wall-hung boiler, a wall-hung boiler control method and device to address the problem of poor heating performance of wall-hung boilers during use.

[0005] In a first aspect, embodiments of the present invention provide a wall-hung boiler control method, the method comprising the following steps: controlling the operating parameters of the wall-hung boiler fan to a preset first parameter value to ignite the wall-hung boiler; after the wall-hung boiler is successfully ignited, adjusting the fan operating parameters from the first parameter value to a second parameter value, and controlling the fan to run for a preset first duration according to the second parameter value; wherein the second parameter value is less than the first parameter value.

[0006] The wall-hung boiler control method of this invention, after successful ignition, adjusts the fan operating parameters from a first parameter value to a second parameter value and controls the fan to run for a preset first time according to the second parameter value. The second parameter value is less than the first parameter value, which reduces the heating power of the wall-hung boiler. This results in a longer interval between successful ignition and shutdown, further ensuring that most of the water in the water pipes connected to the wall-hung boiler reaches the shutdown condition. During one or multiple ignition and shutdown processes, the water in the water pipes connected to the wall-hung boiler can be maintained at the heating set temperature, solving the problem of poor heating effect of the wall-hung boiler during use.

[0007] In one optional implementation, before adjusting the fan operating parameters from the first parameter value to the second parameter value, the method further includes: after controlling the fan to run according to the first parameter value for a preset second time, performing the step of adjusting the fan operating parameters from the first parameter value to the second parameter value.

[0008] This is because the flame is not yet stable when the wall-hung boiler successfully ignites. Adjusting the fan operating parameters from the first parameter value to the second parameter value will inevitably cause the flame to shrink. If the flame is reduced before it is stable, it may cause the flame to go out. In this embodiment of the invention, after the wall-hung boiler successfully ignites, the second time interval from the moment of successful ignition to the current moment is obtained. When the second time interval reaches a preset first threshold, the fan operating parameters are adjusted from the first parameter value to the second parameter value. This allows the flame at the moment of successful ignition to be maintained for a period of time, making the flame more stable. At this time, adjusting the fan operating parameters from the first parameter value to the second parameter value will not cause the flame to go out.

[0009] In one optional implementation, after controlling the fan to run for a preset first time according to the second parameter value, the method further includes: controlling the wall-hung boiler to work according to a preset program; and controlling the wall-hung boiler to shut down when the preset shutdown conditions are met.

[0010] This allows the wall-hung boiler to ignite and shut off multiple times, meeting the user's needs.

[0011] In one alternative implementation, the second parameter value is greater than a preset second threshold, wherein the second threshold is determined based on the size of the recirculation air at the flue gas outlet of the wall-hung boiler.

[0012] This prevents the flame from being blown out by the backflow air from the wall-mounted boiler's flue gas outlet.

[0013] In one optional implementation, adjusting the wind turbine operating parameters from a first parameter value to a second parameter value includes: adjusting the wind turbine operating parameters from the first parameter value to the second parameter value according to a preset descent speed; wherein the descent speed is less than or equal to a preset third threshold.

[0014] Adjusting the fan operating parameters from the first parameter value to the second parameter value will inevitably cause the flame to shrink. If the fan operating parameters decrease too quickly, the flame may go out. When the rate of decrease is less than or equal to a preset third threshold, it can prevent the flame from going out during the shrinking process.

[0015] In one optional implementation, the wall-hung boiler control method further includes the following steps: obtaining the initial inlet water temperature in the wall-hung boiler's water pipes; after the wall-hung boiler is successfully ignited, obtaining the actual outlet water temperature in the water pipes within a preset third time period; calculating multiple temperature rise values ​​of the water in the water pipes based on the initial inlet water temperature and the actual outlet water temperature; determining whether there is at least one temperature rise value greater than or equal to a preset fourth threshold within the third time period; if there is at least one temperature rise value greater than or equal to the fourth threshold within the third time period, determining that the water pump of the wall-hung boiler is operating normally; otherwise, issuing a water pump failure warning message.

[0016] This allows for the detection of water pump malfunctions.

[0017] In one optional implementation, before obtaining the initial inlet water temperature in the wall-hung boiler water pipes or before obtaining the initial inlet water temperature in the wall-hung boiler water pipes, the method further includes: determining whether the wall-hung boiler is being powered on for the first time; when the wall-hung boiler is being powered on for the first time, performing the step of obtaining the initial inlet water temperature in the wall-hung boiler water pipes or performing the step of obtaining the initial inlet water temperature in the wall-hung boiler water pipes.

[0018] This is because, during the initial power-on and ignition of the unit, the water pump may become stuck due to dirt, impurities, etc., leading to dry burning of the unit after ignition, which significantly impacts the service life of the heat exchanger. Therefore, water pump malfunctions should be checked during the initial power-on.

[0019] In one alternative implementation, the fan operating parameters are at least one of the fan speed, the fan voltage, and the fan current.

[0020] This allows the control method for wall-hung boilers to be applicable to both ordinary gas wall-hung boilers and fully premixed wall-hung boilers.

[0021] In one optional implementation, before adjusting the fan operating parameters from the first parameter value to the second parameter value, the method further includes: acquiring the unit start-up and shutdown temperature difference; determining whether the unit start-up and shutdown temperature difference is less than or equal to a preset fifth threshold; when the unit start-up and shutdown temperature difference is less than or equal to the fifth threshold, performing the step of adjusting the fan operating parameters from the first parameter value to the second parameter value; or: acquiring the actual inflow rate in the water pipe; determining whether the actual inflow rate is less than or equal to a preset sixth threshold; when the actual inflow rate is less than or equal to the sixth threshold, performing the step of adjusting the fan operating parameters from the first parameter value to the second parameter value.

[0022] This allows for more targeted control methods for wall-hung boilers.

[0023] Secondly, embodiments of the present invention also provide a wall-hung boiler control device, the device including an ignition module and a parameter adjustment module; the ignition module is used to control the fan operating parameters of the wall-hung boiler to a preset first parameter value, so as to ignite the wall-hung boiler; after the wall-hung boiler is successfully ignited, the parameter adjustment module is used to adjust the fan operating parameters from the first parameter value to a second parameter value, and control the fan to run according to the second parameter value for a preset first time; wherein the second parameter value is less than the first parameter value.

[0024] Thirdly, embodiments of the present invention also provide a computer device, including a memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to perform the wall-hung boiler control method of the first aspect or any corresponding embodiment described above.

[0025] Fourthly, embodiments of the present invention also provide a wall-hung boiler, including the computer equipment of the third aspect.

[0026] In one alternative implementation, the wall-hung boiler is a fully premixed wall-hung boiler.

[0027] Fifthly, embodiments of the present invention also provide a computer-readable storage medium storing computer instructions, which are used to cause a computer to execute the wall-hung boiler control method of the first aspect or any corresponding embodiment described above. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a flowchart of a wall-hung boiler control method according to an embodiment of the present invention;

[0030] Figure 2 This is a flowchart of another wall-hung boiler control method according to an embodiment of the present invention;

[0031] Figure 3 This is a flowchart of another wall-hung boiler control method according to an embodiment of the present invention;

[0032] Figure 4 This is a flowchart of another wall-hung boiler control method according to an embodiment of the present invention;

[0033] Figure 5 This is a flowchart illustrating an example of a wall-hung boiler control method according to an embodiment of the present invention;

[0034] Figure 6 This is a structural block diagram of a wall-hung boiler control device according to an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] During the operation of a wall-hung boiler, the start-up and shutdown temperatures of the unit are determined by the heating set temperature and the temperature difference between the unit's start-up and shutdown. Generally, a heating set temperature of 45℃ to 55℃ is sufficient to meet heating requirements. For example, when the heating set temperature is 40℃ and the temperature difference between the unit's start-up and shutdown is 5℃, ignition can be achieved when the outlet water temperature is ≤35℃, i.e., T... 点火 =T 设 -5; the unit can be shut down once the outlet water temperature reaches 40+A℃ for N consecutive seconds. When the heating set temperature is 40℃ and the unit's start-up / stop temperature difference is 20℃, ignition is only possible when the outlet water temperature is ≤20℃, i.e., T. 点火 =T 设 -20, the outlet water temperature continuously reaches 40+A℃ for N seconds and then the flame can be shut off. For example, N can be 10-20 seconds and A can be 3-10.

[0038] When the temperature difference between unit start-up and shutdown is small, for example, 5℃, ignition occurs when the outlet water temperature is ≤35℃. Due to the high heating efficiency of the wall-hung boiler, the heating time is fast, so the water temperature can quickly reach 40+A℃. It should be noted that because the heating time is short, the water flow distance in the water pipe connected to the wall-hung boiler is short during the heating period. Therefore, only part of the water in the water pipe connected to the wall-hung boiler reaches 40+A℃. For example, if the water pipe connected to the wall-hung boiler in the user's room is several hundred meters long, only a few meters of water in the short heating time can reach the temperature of 40+A℃. After the water temperature reaches 40+A℃, the boiler is shut off. In order to reduce energy consumption, after shutting off, it is necessary to wait for a period of time (e.g., 3 minutes) and wait for the ignition conditions (outlet water temperature ≤35℃) to be met before re-ignition. Because the flameout time is relatively long, a lot of heat is lost from the water, meaning the water in the pipes remains cold... This repeated ignition and extinguishing means the water in the pipes connected to the wall-mounted boiler remains cold, failing to achieve the purpose of heating the user's house.

[0039] When the water flow is low, similar to the situation where the temperature difference between unit start-up and shutdown is small, the wall-hung boiler has a high heating efficiency and heats up quickly, so the water temperature reaches the shutdown temperature very quickly. However, only a portion of the water in the pipes connected to the boiler reaches the shutdown temperature. To reduce energy consumption, after shutdown, it is necessary to wait for a period of time until the ignition conditions are met before re-ignition. Due to the long shutdown time, a significant amount of heat is lost from the water, meaning the water in the pipes remains cold… This repeated ignition and shutdown ensures that the water in the pipes connected to the boiler remains cold, failing to achieve the purpose of heating the user's house.

[0040] Based on this, according to an embodiment of the present invention, a wall-hung boiler control method embodiment is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0041] This embodiment provides a wall-hung boiler control method, which can be used in computer equipment. The wall-hung boiler can be a regular gas-fired wall-hung boiler or a fully premixed wall-hung boiler. Figure 1 This is a flowchart of a wall-hung boiler control method according to an embodiment of the present invention, such as... Figure 1 As shown, the process includes the following steps:

[0042] Step S101: Control the fan operating parameters of the wall-hung boiler to the preset first parameter value in order to ignite the wall-hung boiler.

[0043] Specifically, when the wall-hung boiler is a regular gas wall-hung boiler, the fan operating parameter is at least one of the fan voltage (the voltage input to the fan) and the fan current (the current input to the fan); when the wall-hung boiler is a fully premixed wall-hung boiler, the fan operating parameter is the fan speed.

[0044] Step S102: After the wall-hung boiler is successfully ignited, the fan operating parameters are adjusted from the first parameter value to the second parameter value, and the fan is controlled to run for a preset first time according to the second parameter value; wherein the second parameter value is less than the first parameter value.

[0045] Specifically, the sum of the time it takes for the fan operating parameters to be adjusted from the first parameter value to the second parameter value and the first time the fan operates according to the second parameter value can be 9S to 14S, preferably 9S.

[0046] The wall-hung boiler control method of this invention, after the wall-hung boiler is successfully ignited, adjusts the fan operating parameters from a first parameter value to a second parameter value and controls the fan to run for a preset first time according to the second parameter value. The second parameter value is less than the first parameter value, which can reduce the heating power of the wall-hung boiler. This allows for a longer interval between successful ignition and shutdown, further ensuring that most of the water in the water pipes connected to the wall-hung boiler reaches the shutdown condition. During one or multiple ignition and shutdown processes, the water in the water pipes connected to the wall-hung boiler can be maintained at the set heating temperature.

[0047] This embodiment provides a wall-hung boiler control method that can be used in computer equipment. Figure 2 This is a flowchart of another wall-hung boiler control method according to an embodiment of the present invention, such as... Figure 2 As shown, the process includes the following steps:

[0048] Step S201: Control the fan operating parameters of the wall-hung boiler to the preset first parameter value in order to ignite the wall-hung boiler.

[0049] Specifically, the first parameter value can be determined based on the ignition power. For example, when the wall-hung boiler is a fully premixed wall-hung boiler, the fan speed of the fully premixed wall-hung boiler is controlled at 3500 r / min to 4000 r / min to ignite the boiler.

[0050] Step S202: After the wall-hung boiler is successfully ignited, control the fan to run for a preset second duration according to the first parameter value.

[0051] For example, the second duration can be 0.5S to 1S, preferably 1S.

[0052] Step S203: After controlling the fan to run for a second duration according to the first parameter value, adjust the fan operating parameters from the first parameter value to the second parameter value, and control the fan to run for a preset first duration according to the second parameter value.

[0053] This is because the flame is not yet stable when the wall-hung boiler successfully ignites. Adjusting the fan operating parameters from the first parameter value to the second parameter value will inevitably cause the flame to shrink. If the flame is reduced before it is stable, it may cause the flame to go out.

[0054] In this embodiment of the invention, after the wall-hung boiler successfully ignites, the second duration from the moment of successful ignition to the current moment is obtained. When the second duration reaches a preset first threshold, the fan operating parameters are adjusted from the first parameter value to the second parameter value. This allows the flame at the moment of successful ignition to be maintained for a period of time, making the flame more stable. At this time, adjusting the fan operating parameters from the first parameter value to the second parameter value will not cause the flame to go out.

[0055] As a specific implementation method, adjusting the fan operating parameters from a first parameter value to a second parameter value includes: adjusting the fan operating parameters from the first parameter value to the second parameter value according to a preset descent speed; wherein the descent speed is less than or equal to a preset third threshold; the second parameter value is greater than a preset second threshold, wherein the second threshold is determined according to the size of the recirculated air at the flue gas outlet of the wall-hung boiler.

[0056] The purpose of controlling the fan operating parameters to decrease at a preset rate, while ensuring the rate of decrease is less than or equal to a preset third threshold, is to prevent the fan operating parameters from decreasing too quickly, which could cause backfire and lead to flameout. As shown above, adjusting the fan operating parameters from the first to the second value will inevitably reduce the flame size. If the fan operating parameters decrease too quickly, the flame may extinguish. Maintaining a rate of decrease less than or equal to the preset third threshold prevents the flame from extinguishing as it shrinks. The third threshold is determined by the amount of air returning from the exhaust vent; for example, it can be between 400r / 500ms and 700r / 500ms.

[0057] The purpose of controlling the value of the second parameter to be greater than the preset second threshold is to prevent the flame from being blown out by the wind, that is, to prevent the backflow air from the flue gas outlet of the wall-hung boiler from blowing out the flame. For example, the second threshold is 1700-2500 r / min.

[0058] It should be noted that the second threshold mentioned above is greater than the minimum speed of the fan.

[0059] Step S204: Control the wall-hung boiler to work according to the preset program.

[0060] Specifically, the preset program can enable the wall-hung boiler to enter PID combustion. For example, it can be based on the set outlet water temperature T. 设 Inlet water temperature T 进 1. Calculate the combustion power P based on the inlet water flow rate, i.e., P = C * (T) 设 -T 进 Then calculate the fan operating parameters based on the combustion power P.

[0061] It should be noted that when the wall-hung boiler operates according to the preset program, the fan operating parameters can be calculated using the above method and are not limited by the first and second parameter values ​​mentioned above.

[0062] Step S205: When the preset shutdown conditions are met, control the wall-hung boiler to shut down.

[0063] Specifically, the shutdown condition can be that the water in the water pipe connected to the wall-hung boiler is maintained at the heating set temperature + A℃ for N seconds. For example, N can be 10 to 20 seconds and A can be 3 to 10.

[0064] Specifically, when controlling the wall-hung boiler to shut off, the gas supply can be stopped first, and the fan can be turned off only after the cleaning process is completed (e.g., 2 minutes). This allows the exhaust gas in the furnace to be expelled, making it less likely for deflagration to occur during the next ignition.

[0065] The wall-hung boiler control method provided in this embodiment can not only solve the problem of poor heating effect of wall-hung boilers during use, but also ensure that the flame will not go out during the reduction process.

[0066] This embodiment provides a wall-hung boiler control method that can be used in computer equipment. Figure 3 This is a flowchart of another wall-hung boiler control method according to an embodiment of the present invention, such as... Figure 3 As shown, the process includes the following steps:

[0067] Step S301: When the wall-hung boiler is powered on for the first time, obtain the initial inlet water temperature in the water pipes of the wall-hung boiler.

[0068] Step S302: Control the operating parameters of the wall-hung boiler's fan to the preset first parameter value to ignite the wall-hung boiler.

[0069] Step S303: Determine whether the wall-hung boiler has been successfully ignited. If the wall-hung boiler is successfully ignited, proceed to steps S304 and S305 respectively.

[0070] Step S304: After the wall-hung boiler is successfully ignited, the fan operating parameters are adjusted from the first parameter value to the second parameter value, and the fan is controlled to run for a preset first time according to the second parameter value; wherein the second parameter value is less than the first parameter value.

[0071] For example, the first duration is 9S to 14S, preferably 9S.

[0072] Step S305: Obtain multiple actual water outlet temperatures in the water pipe within a preset third time period.

[0073] For example, the third duration is 10S to 15S, preferably 15S.

[0074] Step S306: Calculate multiple temperature rise values ​​of the water in the pipe based on the initial inlet water temperature and multiple actual outlet water temperatures.

[0075] Step S307: Determine whether there is at least one temperature rise value greater than or equal to the preset fourth threshold within the third time period; if there is at least one temperature rise value greater than or equal to the fourth threshold within the third time period, proceed to step S308; otherwise, proceed to step S309.

[0076] Step S308: Determine that the water pump of the wall-hung boiler is operating normally.

[0077] Step S309: Issue a message indicating a water pump malfunction.

[0078] This is because, during the initial power-on ignition of the unit, the water pump may become stuck due to dirt, impurities, etc., leading to dry burning after ignition, which significantly impacts the lifespan of the heat exchanger. To ensure safe operation of the unit, this embodiment of the invention performs a water pump fault detection upon initial power-on. Specifically, after the wall-hung boiler successfully ignites at its ignition power and the flame is maintained for M seconds, the water outlet temperature sensor on the unit acquires the actual outlet water temperature in the heating system at any time within the third time period. Based on the initial inlet water temperature and the actual outlet water temperature, it is determined whether the temperature rise is ≥ K℃, where K represents the temperature rise value, such as a natural number like 3, 4, 5, or 6. If it is greater than or equal to K, the water pump is operating normally; otherwise, the unit shuts down directly and reports a water pump fault, requiring maintenance.

[0079] Step S310: After the control fan runs for a preset first time according to the second parameter value, when the water pump of the wall-hung boiler is running normally, control the wall-hung boiler to work according to the preset program.

[0080] As shown above, the preset program can enable the wall-hung boiler to enter PID combustion. For example, the combustion power P can be calculated based on the set outlet water temperature Tset, inlet water temperature Tinlet, and inlet water flow rate, i.e., P = C * (Tset - Tinlet) * Q, and then the fan operating parameters can be calculated based on the combustion power P.

[0081] It should be noted that when the wall-hung boiler operates according to the preset program, the fan operating parameters can be calculated using the above method and are not limited by the first and second parameter values ​​mentioned above.

[0082] Step S311: When the preset shutdown conditions are met, control the fan to stop running in order to shut down the wall-hung boiler.

[0083] The wall-hung boiler control method provided in this embodiment can not only solve the problem of poor heating effect of wall-hung boilers during use, but also prevent the unit from dry burning.

[0084] This embodiment provides a wall-hung boiler control method that can be used in computer equipment. Figure 4 This is a flowchart of another wall-hung boiler control method according to an embodiment of the present invention, such as... Figure 4 As shown, the process includes the following steps:

[0085] Step S401: Obtain the temperature difference between unit start-up and shutdown.

[0086] Specifically, the unit start-up and shutdown temperature difference refers to the difference between the user-set temperature and the outlet water temperature of the wall-hung boiler before ignition. This value is either a default value or set by the user.

[0087] Step S401 can be replaced by obtaining the actual inflow rate of the water pipe.

[0088] Step S402: Determine whether the unit start-up and shutdown temperature difference is less than or equal to the preset fifth threshold; if the unit start-up and shutdown temperature difference is less than or equal to the fifth threshold, proceed to step S403; otherwise, proceed to step S404.

[0089] For example, the fifth threshold is 5℃~20℃.

[0090] Step S402 can be replaced by determining whether the actual inflow rate is less than or equal to the preset sixth threshold; if the actual inflow rate is less than or equal to the sixth threshold, proceed to step S403; otherwise, proceed to step S404.

[0091] For example, the sixth threshold is 6L / min-10L / min.

[0092] Step S403: Control the fan operating parameters of the wall-hung boiler to a preset first parameter value to ignite the wall-hung boiler; after the wall-hung boiler is successfully ignited, adjust the fan operating parameters from the first parameter value to the second parameter value, and control the fan to run for a preset first time according to the second parameter value; wherein the second parameter value is less than the first parameter value.

[0093] Step S404: Control the operating parameters of the wall-hung boiler's fan to the preset first parameter value to ignite the wall-hung boiler.

[0094] Step S405: Control the wall-hung boiler to work according to the preset program.

[0095] As shown above, the preset program can enable the wall-hung boiler to enter PID combustion. For example, the combustion power P can be calculated based on the set outlet water temperature Tset, inlet water temperature Tinlet, and inlet water flow rate, i.e., P = C * (Tset - Tinlet) * Q, and then the fan operating parameters can be calculated based on the combustion power P.

[0096] It should be noted that when the wall-hung boiler operates according to the preset program, the fan operating parameters can be calculated using the above method and are not limited by the first and second parameter values ​​mentioned above.

[0097] Step S406: When the preset shutdown conditions are met, control the wall-hung boiler to shut down.

[0098] In other words, when the temperature difference between unit start-up and shutdown is small and / or the actual water flow rate in the water pipe is small, the fan frequency is reduced to maintain low-fire combustion after successful ignition, thus solving the problem of poor heating effect of wall-hung boilers during use.

[0099] To more clearly illustrate the wall-hung boiler control method of this invention, a specific example is given. For example... Figure 5As shown, the wall-hung boiler control method of this invention includes the following steps:

[0100] After the entire unit is ignited with the ignition power (corresponding to the first parameter value mentioned above), the flame is maintained for a second duration (e.g., 1 second). Then, the variable frequency fan descends to the second parameter value at a certain speed. This second parameter value cannot be too small to prevent the flame from going out due to excessive backflow of air from the exhaust port after ignition. Then, the combustion is maintained for a first duration (e.g., 9 seconds) using this second parameter value. This process is the process of switching to low flame combustion after successful ignition. Finally, it enters PID combustion until the water in the water pipe connected to the wall-hung boiler is maintained at the heating set temperature + A℃ for N seconds (e.g., 15 seconds) before the flame goes out.

[0101] This embodiment also provides a wall-hung boiler control device for implementing the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that performs a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0102] This embodiment provides a wall-hung boiler control device, such as... Figure 6 As shown, it includes:

[0103] The ignition module 601 is used to control the fan operating parameters of the wall-hung boiler to a preset first parameter value in order to ignite the wall-hung boiler.

[0104] The parameter adjustment module 602 adjusts the fan operating parameters from the first parameter value to the second parameter value after the wall-hung boiler is successfully ignited, and controls the fan to run for a preset first time according to the second parameter value; wherein the second parameter value is less than the first parameter value.

[0105] In one alternative implementation, before adjusting the fan operating parameters from the first parameter value to the second parameter value, the parameter adjustment module 602 is used to perform the step of adjusting the fan operating parameters from the first parameter value to the second parameter value after controlling the fan to run according to the first parameter value for a preset second time.

[0106] In one optional embodiment, the wall-hung boiler control device further includes an operation control module. After the control fan runs for a preset first duration according to the second parameter value, the operation control module controls the wall-hung boiler to operate according to a preset program; when the preset shutdown conditions are reached, the module controls the wall-hung boiler to shut down.

[0107] In one alternative implementation, the second parameter value is greater than a preset second threshold, wherein the second threshold is determined based on the size of the recirculation air at the flue gas outlet of the wall-hung boiler.

[0108] In one optional implementation, the parameter adjustment module 602 is specifically used to adjust the wind turbine operating parameters from a first parameter value to a second parameter value according to a preset descent speed; wherein the descent speed is less than or equal to a preset third threshold.

[0109] In one optional embodiment, the wall-hung boiler control device further includes a water pump fault detection module. The water pump fault detection module is used to: acquire the initial inlet water temperature in the boiler's water pipes; after the boiler successfully ignites, acquire the actual outlet water temperature within a preset third time period; calculate multiple temperature rise values ​​of the water in the pipes based on the initial inlet water temperature and the actual outlet water temperature; determine whether at least one temperature rise value is greater than or equal to a preset fourth threshold value within the third time period; if at least one temperature rise value is greater than or equal to the fourth threshold value within the third time period, determine that the boiler's water pump is operating normally; otherwise, issue a water pump fault warning message.

[0110] In one optional embodiment, the wall-hung boiler control device further includes a first pre-processing module. Before acquiring the initial inlet water temperature in the wall-hung boiler's water pipes, or before acquiring the initial inlet water temperature in the wall-hung boiler's water pipes, the pre-processing module is used to determine whether the wall-hung boiler is being powered on for the first time; when the wall-hung boiler is being powered on for the first time, the water pump fault detection module performs the step of acquiring the initial inlet water temperature in the wall-hung boiler's water pipes or performs the step of acquiring the initial inlet water temperature in the wall-hung boiler's water pipes.

[0111] In one optional embodiment, the wall-hung boiler control device further includes a second pre-processing module. Before adjusting the fan operating parameters from the first parameter value to the second parameter value, the second pre-processing module is used to: acquire the unit start-up and shutdown temperature difference; determine whether the unit start-up and shutdown temperature difference is less than or equal to a preset fifth threshold; when the unit start-up and shutdown temperature difference is less than or equal to the fifth threshold, execute the step of adjusting the fan operating parameters from the first parameter value to the second parameter value; or, the second pre-processing module is used to: acquire the actual inflow rate in the water pipe; determine whether the actual inflow rate is less than or equal to a preset sixth threshold; when the actual inflow rate is less than or equal to the sixth threshold, execute the step of adjusting the fan operating parameters from the first parameter value to the second parameter value.

[0112] In this embodiment, the wall-hung boiler control device is presented in the form of a functional unit. Here, a unit refers to an ASIC circuit, a processor and memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0113] Further functional descriptions of the above modules and units are the same as those in the corresponding embodiments described above, and will not be repeated here.

[0114] This invention also provides a computer device having the above-described features. Figure 6 The wall-hung boiler control device shown.

[0115] This invention also provides a wall-hung boiler, including the aforementioned computer equipment.

[0116] Among them, wall-hung boilers can be either ordinary gas-fired wall-hung boilers or fully premixed wall-hung boilers. Fully premixed condensing wall-hung boilers are a series of fully premixed high-efficiency condensing wall-hung boilers, which are more energy-efficient and more high-end wall-hung boilers.

[0117] Among them, the fully premixed condensation technology is a method that involves premixing air and fuel gas to achieve the optimal ratio before combustion, and then recovering and utilizing part of the heat energy (latent heat of water vapor) from the flue gas produced by combustion.

[0118] Fully premixed condensing wall-hung boilers have higher thermal efficiency and lower CO and NOx content. Tests show that when using natural gas as fuel, the flue gas temperature of a fully premixed condensing wall-hung boiler is 80°C lower than that of a conventional gas-fired wall-hung boiler, and its thermal efficiency is more than 15% higher, making it more energy-efficient.

[0119] Please see Figure 7 , Figure 7 This is a schematic diagram of the structure of a computer device provided in an optional embodiment of the present invention, such as... Figure 7 As shown, the computer device includes one or more processors 10, memory 20, and interfaces for connecting the components, including high-speed interfaces and low-speed interfaces. The components communicate with each other via different buses and can be mounted on a common motherboard or otherwise installed as needed. The processors can process instructions executed within the computer device, including instructions stored in or on memory to display graphical information of a GUI on external input / output devices (such as display devices coupled to the interfaces). In some alternative implementations, multiple processors and / or multiple buses can be used with multiple memories and multiple memory modules, if desired. Similarly, multiple computer devices can be connected, each providing some of the necessary operations (e.g., as a server array, a group of blade servers, or a multiprocessor system). Figure 7 Take a processor 10 as an example.

[0120] Processor 10 may be a central processing unit, a network processor, or a combination thereof. Processor 10 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The programmable logic device may be a complex programmable logic device (CAMP), a field-programmable gate array (FPGA), a general-purpose array logic (GDA), or any combination thereof.

[0121] The memory 20 stores instructions executable by at least one processor 10 to cause at least one processor 10 to perform the method shown in the above embodiments.

[0122] The memory 20 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the computer device as shown by a landing page for an app. Furthermore, the memory 20 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some alternative embodiments, the memory 20 may optionally include memory remotely located relative to the processor 10, which can be connected to the computer device 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.

[0123] The memory 20 may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as flash memory, hard disk or solid-state drive; the memory 20 may also include a combination of the above types of memory.

[0124] The computer device also includes an input device 30 and an output device 40. The processor 10, memory 20, input device 30, and output device 40 can be connected via a bus or other means. Figure 7 Taking the example of a connection between China and Israel via a bus.

[0125] Input device 30 can receive input numerical or character information, and generate key signal inputs related to user settings and function control of the computer device, such as a touchscreen, keypad, mouse, trackpad, touchpad, joystick, one or more mouse buttons, trackball, joystick, etc. Output device 40 may include display devices, auxiliary lighting devices (e.g., LEDs), and haptic feedback devices (e.g., vibration motors). The aforementioned display devices include, but are not limited to, liquid crystal displays, light-emitting diodes, displays, and plasma displays. In some alternative embodiments, the display device may be a touchscreen.

[0126] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods shown in the above embodiments.

[0127] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, at least one of which falls within the scope defined by the appended claims.

Claims

1. A method for controlling a wall-hung boiler, characterized in that, The method includes: The operating parameters of the wall-hung boiler's fan are controlled to a preset first parameter value in order to ignite the wall-hung boiler; After the wall-hung boiler is successfully ignited, the operating parameters of the fan are adjusted from the first parameter value to the second parameter value, and the fan is controlled to run for a preset first time according to the second parameter value; wherein the second parameter value is less than the first parameter value; Before adjusting the wind turbine operating parameters from the first parameter value to the second parameter value, the method further includes: After controlling the fan to run for a preset second time according to the first parameter value, the step of adjusting the fan operating parameters from the first parameter value to the second parameter value is performed.

2. The method according to claim 1, characterized in that, After controlling the fan to run for a preset first time according to the second parameter value, the method further includes: The wall-hung boiler is controlled to operate according to a preset program; When the preset shutdown conditions are met, the wall-hung boiler is controlled to shut down.

3. The method according to any one of claims 1 to 2, characterized in that, The second parameter value is greater than a preset second threshold, wherein the second threshold is determined based on the size of the recirculated air at the flue gas outlet of the wall-hung boiler.

4. The method according to any one of claims 1 to 2, characterized in that, The step of adjusting the wind turbine operating parameters from the first parameter value to the second parameter value includes: The wind turbine operating parameters are adjusted from the first parameter value to the second parameter value according to a preset descent speed; wherein the descent speed is less than or equal to a preset third threshold.

5. The method according to any one of claims 1 to 2, characterized in that, Also includes: Obtain the initial inlet water temperature in the water pipes of the wall-hung boiler; After the wall-mounted boiler is successfully ignited, the actual water temperature of the water in the water pipe within a preset third time period is obtained. The temperature rise of the water in the water pipe is calculated based on the initial inlet water temperature and the actual outlet water temperature. Determine whether there is at least one temperature rise value greater than or equal to a preset fourth threshold within the third time period; if there is at least one temperature rise value greater than or equal to the fourth threshold within the third time period, determine that the water pump of the wall-hung boiler is operating normally; Otherwise, issue a message indicating a water pump malfunction.

6. The method according to claim 5, characterized in that, The process of obtaining the initial inlet water temperature in the water pipes of the wall-hung boiler also includes: Determine whether the wall-hung boiler is being powered on for the first time; When the wall-hung boiler is powered on for the first time, the step of obtaining the initial inlet water temperature in the water pipes of the wall-hung boiler is performed.

7. The method according to any one of claims 1 to 2, characterized in that, The operating parameters of the fan are at least one of the fan speed, the fan voltage, and the fan current.

8. The method according to any one of claims 1 to 2, characterized in that, Before adjusting the wind turbine operating parameters from the first parameter value to the second parameter value, the method further includes: Obtain the temperature difference between unit start-up and shutdown; Determine whether the temperature difference between the start-up and shutdown of the unit is less than or equal to a preset fifth threshold. When the temperature difference between the start-up and shutdown of the unit is less than or equal to the fifth threshold, the step of adjusting the operating parameters of the fan from the first parameter value to the second parameter value is executed. or; Obtain the actual inflow rate of the water pipe; Determine whether the actual inflow rate is less than or equal to a preset sixth threshold; When the actual inflow rate is less than or equal to the sixth threshold, the step of adjusting the fan operating parameters from the first parameter value to the second parameter value is executed.

9. A wall-hung boiler control device, characterized in that, The device includes: The ignition module is used to control the fan operating parameters of the wall-hung boiler to a preset first parameter value in order to ignite the wall-hung boiler. The parameter adjustment module adjusts the fan operating parameters from the first parameter value to the second parameter value after the wall-hung boiler is successfully ignited, and controls the fan to run for a preset first time according to the second parameter value; wherein the second parameter value is less than the first parameter value. Before adjusting the fan operating parameters from the first parameter value to the second parameter value, the parameter adjustment module is further configured to: after controlling the fan to run for a preset second duration according to the first parameter value, perform the step of adjusting the fan operating parameters from the first parameter value to the second parameter value.

10. A wall-hung boiler, characterized in that, include: A memory and a processor are communicatively connected, the memory stores computer instructions, and the processor executes the computer instructions to perform the wall-hung boiler control method according to any one of claims 1 to 8.

11. The wall-hung boiler according to claim 10, characterized in that, The wall-hung boiler is a fully premixed wall-hung boiler.

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