Wall-mounted boiler and control method, device and computer equipment thereof

Abstract

The present application relates to a wall-mounted boiler and its control method, device, computer equipment, storage medium and computer program product. The method comprises: obtaining the current working state of the wall-mounted boiler, which includes the working mode of the wall-mounted boiler; when the working mode of the wall-mounted boiler is the bathroom mode, obtaining the bathroom water outlet temperature; outputting a flow control instruction according to the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold. When the wall-mounted boiler is in the bathroom mode, the entire solution outputs a flow control instruction according to the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold, to control the water flow rate of the main heat exchanger entering the auxiliary heat exchanger, adjust the water outlet temperature according to the water flow rate, and different temperature differences correspond to different flow control instructions to keep the water temperature stable, prevent the bathroom water from being hot and cold, reduce the risk of scalding, and improve the user experience.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to a wall-mounted boiler and a control method, device, computer equipment, storage medium and computer program product thereof. Background Art

[0002] A wall-mounted boiler is a device used for heating. It uses natural gas, artificial gas or liquefied gas as fuel. The fuel is output through the burner, and after burning in the combustion chamber, the heat is absorbed by the heat exchanger. The circulating water in the heating system is heated back and forth when passing through the heat exchanger, thereby continuously outputting heat to the building and providing a heat source for the building. In addition to the heating function, the current wall-mounted boiler can also provide a large flow of constant temperature sanitary hot water for use in family bathing, kitchens and other places, which is economical and practical.

[0003] In the current bathroom mode, when the wall-mounted boiler runs at the lowest power, the power is still greater than the required power, causing the bathroom water to be too hot; after the bathroom water is overheated, the wall-mounted boiler automatically shuts down, and then the bathroom water becomes cold again. The bathroom water is hot and cold, the user experience is poor, and there is a risk of scalding. Summary of the invention

[0004] Based on this, it is necessary to provide a wall-mounted boiler that can accurately control the outlet water temperature of bathrooms, and a control method, device, computer equipment, computer-readable storage medium, and computer program product thereof to address the problem of fluctuating water temperatures in bathrooms.

[0005] In a first aspect, the present application provides a wall-mounted boiler control method. The method comprises:

[0006] Get the current working status of the wall-mounted boiler, which includes the working mode of the wall-mounted boiler;

[0007] When the working mode of the wall-mounted boiler is bathroom mode, obtain the bathroom water outlet temperature;

[0008] According to the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and the preset temperature difference threshold, a flow control instruction is output, and the flow control instruction is used to control the size of the water flow from the main heat exchanger into the auxiliary heat exchanger.

[0009] In one embodiment, the flow control instruction includes a first flow control instruction and a second flow control instruction; according to the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and a preset temperature difference threshold, the flow control instruction is output, including: if the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than the first temperature difference threshold, the first flow control instruction is output, and the first flow control instruction is used to control the reduction of the water flow from the main heat exchanger to the auxiliary heat exchanger; if the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, the second flow control instruction is output, and the second flow control instruction is used to control the increase of the water flow from the main heat exchanger to the auxiliary heat exchanger.

[0010] In one of the embodiments, the current working state of the wall-mounted boiler includes the working mode of the wall-mounted boiler and the current heating power of the wall-mounted boiler; after obtaining the current working state of the wall-mounted boiler, it also includes: when the working mode of the wall-mounted boiler is the bathroom mode, obtaining the bathroom water outlet temperature, and the current heating power of the wall-mounted boiler; according to the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold, outputting a flow control instruction, including: according to the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold, and the current heating power, outputting a flow control instruction and / or adjusting the current heating power.

[0011] In one embodiment, the flow control instruction includes a first flow control instruction; according to the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold, as well as the current heating power, the flow control instruction is output and / or the current heating power is adjusted, including: if the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is greater than the first temperature difference threshold, and the current heating power is less than or equal to the first preset heating power, the first flow control instruction is output, and the first flow control instruction is used to control the reduction of the water flow entering the auxiliary heat exchanger from the main heat exchanger; if the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is greater than the first temperature difference threshold, and the current heating power is greater than the first preset heating power, the water flow entering the auxiliary heat exchanger from the main heat exchanger is controlled to remain unchanged, and the current heating power is reduced.

[0012] In one embodiment, the flow control instruction includes a second flow control instruction; according to the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold, as well as the current heating power, the flow control instruction is output and / or the current heating power is adjusted, including: if the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is less than the second temperature difference threshold, and the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is greater than or equal to the first preset flow rate, the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is controlled to maintain unchanged, and the current heating power is controlled to increase; if the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is less than the second temperature difference threshold, and the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is less than the first preset flow rate, the second flow control instruction is output, and the second flow control instruction is used to control the increase of the water flow rate entering the auxiliary heat exchanger from the main heat exchanger.

[0013] In one of the embodiments, the flow control instruction includes an opening adjustment instruction; the opening adjustment instruction is used to control and adjust the opening of a two-way valve arranged on the outlet pipe of the main heat exchanger and the inlet pipe of the auxiliary heat exchanger; the opening of the two-way valve is determined by the opening of the two-way valve and the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature.

[0014] In one of the embodiments, when entering the bathroom mode, the wall-mounted boiler is controlled to heat with a first preset heating power.

[0015] In a second aspect, the present application further provides a wall-mounted boiler, comprising a main heat exchanger and an auxiliary heat exchanger, wherein the outlet pipe of the main heat exchanger is connected to the water inlet pipe and / or the heating end of the auxiliary heat exchanger through a three-way valve, a two-way valve is provided on the water inlet pipe of the auxiliary heat exchanger, a temperature sensor is provided on the water outlet pipe of the auxiliary heat exchanger, and a flow sensor is provided on the cold water inlet pipe of the auxiliary heat exchanger;

[0016] When the flow sensor detects water flow, it controls the three-way valve to connect the outlet pipe of the main heat exchanger with the hot water inlet pipe of the auxiliary heat exchanger;

[0017] The temperature sensor detects the bathroom water outlet temperature, and controls the opening of the two-way valve to adjust the water flow from the main heat exchanger into the auxiliary heat exchanger according to the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold.

[0018] In a third aspect, the present application also provides a wall-mounted boiler control device. The device comprises:

[0019] An acquisition module is used to acquire the current working state of the wall-mounted boiler, and the current working state of the wall-mounted boiler includes the working mode of the wall-mounted boiler;

[0020] And when the working mode of the wall-mounted boiler is bathroom mode, obtain the bathroom water outlet temperature;

[0021] The control module is used to output a flow control instruction based on the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and a preset temperature difference threshold. The flow control instruction is used to control the water flow from the main heat exchanger to the auxiliary heat exchanger.

[0022] In a fourth aspect, the present application further provides a computer device. The computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

[0023] Get the current working status of the wall-mounted boiler, which includes the working mode of the wall-mounted boiler;

[0024] When the working mode of the wall-mounted boiler is bathroom mode, obtain the bathroom water outlet temperature;

[0025] According to the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and the preset temperature difference threshold, a flow control instruction is output, and the flow control instruction is used to control the size of the water flow from the main heat exchanger into the auxiliary heat exchanger.

[0026] In a fifth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0027] Get the current working status of the wall-mounted boiler, which includes the working mode of the wall-mounted boiler;

[0028] When the working mode of the wall-mounted boiler is bathroom mode, obtain the bathroom water outlet temperature;

[0029] According to the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and the preset temperature difference threshold, a flow control instruction is output, and the flow control instruction is used to control the size of the water flow from the main heat exchanger into the auxiliary heat exchanger.

[0030] In a sixth aspect, the present application further provides a computer program product. The computer program product includes a computer program, and when the computer program is executed by a processor, the following steps are implemented:

[0031] Get the current working status of the wall-mounted boiler, which includes the working mode of the wall-mounted boiler;

[0032] When the working mode of the wall-mounted boiler is bathroom mode, obtain the bathroom water outlet temperature;

[0033] According to the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and the preset temperature difference threshold, a flow control instruction is output, and the flow control instruction is used to control the size of the water flow from the main heat exchanger into the auxiliary heat exchanger.

[0034] The above-mentioned wall-mounted boiler and its control method, device, computer equipment, storage medium and computer program product obtain the current working state of the wall-mounted boiler, which includes the working mode of the wall-mounted boiler; when the working mode of the wall-mounted boiler is the bathroom mode, the bathroom outlet water temperature is obtained; according to the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and the preset temperature difference threshold, a flow control instruction is output, and the flow control instruction is used to control the amount of water flow from the main heat exchanger to the auxiliary heat exchanger. When the wall-mounted boiler is in the bathroom mode, the entire solution outputs a flow control instruction according to the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and the preset temperature difference threshold to control the amount of water flow from the main heat exchanger to the auxiliary heat exchanger, and adjusts the outlet water temperature according to the amount of water flow. Different temperature differences correspond to different flow control instructions to keep the water temperature stable, prevent the bathroom water from being hot and cold, reduce the risk of scalding, and improve user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 A schematic diagram of a flow chart of a wall-mounted boiler control method in one embodiment;

[0037] Figure 2 A schematic diagram of a flow chart of a wall-mounted boiler control method in another embodiment;

[0038] Figure 3 A schematic diagram of a flow chart of a wall-mounted boiler control method in another embodiment;

[0039] Figure 4 is a structural block diagram of a wall-mounted boiler control device in one embodiment;

[0040] Figure 5 It is a structural block diagram of a wall-mounted boiler in one embodiment;

[0041] Figure 6 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0043] In one embodiment, Figure 1As shown, a wall-mounted boiler control method is provided, and the method is applied to a wall-mounted boiler controller as an example for description, comprising the following steps:

[0044] Step 102, obtaining the current working status of the wall-mounted boiler.

[0045] Among them, the wall-mounted boiler is a gas wall-mounted boiler, which is a device that can provide heating and domestic hot water, and can meet the heating and domestic hot water needs of users. The current working state of the wall-mounted boiler refers to the working mode of the wall-mounted boiler at the current moment, the current heating power of the wall-mounted boiler and other information. The working modes of the wall-mounted boiler include heating mode and bathroom mode.

[0046] Specifically, when the boiler controller receives the user's bathroom water operation, it obtains the current working state of the boiler. The boiler controller can also periodically obtain the current working state of the boiler and adjust the water flow rate according to the working state of the boiler in time to control the outlet water temperature of the boiler.

[0047] Further, when the wall-mounted boiler controller detects that the user turns on the domestic water switch, the current working state of the wall-mounted boiler is obtained. Alternatively, when the wall-mounted boiler controller detects that the user triggers the bathroom mode operation, the current working state of the wall-mounted boiler is obtained.

[0048] Step 104, when the working mode of the wall-mounted boiler is the bathroom mode, obtain the bathroom water outlet temperature.

[0049] Among them, the bathroom water outlet temperature refers to the water temperature in the bathroom water outlet pipe of the wall-mounted boiler.

[0050] Specifically, when the boiler controller receives a bathroom water operation from the user, it determines that the boiler operation mode is the bathroom mode. Further, when the boiler controller detects water flow in the bathroom water outlet pipe through a flow sensor in the bathroom water inlet pipe or the bathroom water outlet pipe, it determines that the boiler operation mode is the bathroom mode. Afterwards, the boiler controller obtains the bathroom outlet water temperature through the bathroom outlet water temperature sensor package, and can obtain the stored target bathroom outlet water temperature from the local memory.

[0051] Step 106: output a flow control instruction according to the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and a preset temperature difference threshold.

[0052] Among them, the target bathroom water outlet temperature refers to the target value of the bathroom water outlet temperature, which is the set water temperature when the user bathes, and can be set by the user according to the bathroom needs. If the user has not set it, the default bathroom water outlet temperature set by the wall-mounted boiler can also be set as the target bathroom water outlet temperature. The preset temperature difference threshold refers to the temperature difference threshold between the bathroom water outlet temperature and the target bathroom water outlet temperature. The preset temperature difference threshold can be ±0.5°C to reduce the water temperature difference. The preset temperature difference threshold can also be set to other values, which can be adjusted according to the water temperature control requirements, and this embodiment is not limited here.

[0053] The flow control instruction is used to control the water flow from the main heat exchanger to the auxiliary heat exchanger. The main heat exchanger is a heating water circulation heating device of a wall-mounted boiler, and the auxiliary heat exchanger is a domestic water circulation heat exchange device of the wall-mounted boiler. The auxiliary heat exchanger can be a plate heat exchanger.

[0054] Specifically, the wall-mounted boiler controller determines the bathroom outlet water temperature adjustment strategy according to the current working state and the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and the preset temperature difference threshold value, and outputs the corresponding flow control instruction according to the bathroom outlet water temperature adjustment strategy to control the size of the water flow from the main heat exchanger to the auxiliary heat exchanger, and adjusts the bathroom outlet water temperature according to the size of the water flow from the main heat exchanger to the auxiliary heat exchanger, so that the bathroom outlet water temperature reaches the target outlet water temperature. The bathroom outlet water temperature adjustment strategy is used to increase or decrease the bathroom outlet water temperature.

[0055] The wall-mounted boiler controller subtracts the bathroom outlet water temperature from the target bathroom outlet water temperature to obtain the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature, and compares the difference with the preset temperature difference threshold to obtain the size relationship between the difference and the preset temperature difference threshold. According to the size relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and the preset temperature difference threshold, the bathroom outlet water temperature adjustment strategy is determined. According to the bathroom outlet water temperature adjustment strategy, the corresponding flow control instruction is output to control the size of the water flow from the main heat exchanger to the auxiliary heat exchanger. According to the size of the water flow from the main heat exchanger to the auxiliary heat exchanger, the bathroom outlet water temperature is adjusted so that the bathroom outlet water temperature reaches the target outlet water temperature. The bathroom outlet water temperature adjustment strategy is used to increase or decrease the bathroom outlet water temperature.

[0056] In this embodiment, based on the relationship between the bathroom water outlet temperature and the target bathroom water outlet temperature, the bathroom water outlet temperature adjustment strategy is determined, and then the bathroom water outlet temperature is adjusted according to the bathroom water outlet temperature adjustment strategy so that the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature reaches the preset temperature difference threshold.

[0057] In the above-mentioned wall-mounted boiler control method, the current working state of the wall-mounted boiler is obtained, and the current working state of the wall-mounted boiler includes the wall-mounted boiler working mode; when the wall-mounted boiler working mode is the bathroom mode, the bathroom outlet water temperature is obtained; according to the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and the preset temperature difference threshold, a flow control instruction is output, and the flow control instruction is used to control the amount of water flow from the main heat exchanger to the auxiliary heat exchanger. When the wall-mounted boiler is in the bathroom mode, the entire solution outputs a flow control instruction according to the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and the preset temperature difference threshold to control the amount of water flow from the main heat exchanger to the auxiliary heat exchanger, and adjust the outlet water temperature according to the amount of water flow. Different temperature differences correspond to different flow control instructions to keep the water temperature stable, prevent the bathroom water from being hot and cold, reduce the risk of scalding, and improve the user experience.

[0058] In one embodiment, Figure 2 As shown, according to the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and the preset temperature difference threshold, the flow control instruction is output, including:

[0059] Step 202: If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than a first temperature difference threshold, a first flow control instruction is output, the first flow control instruction being used to control and reduce the water flow from the main heat exchanger into the auxiliary heat exchanger.

[0060] Step 204: if the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, output a second flow control instruction, the second flow control instruction is used to control and increase the water flow from the main heat exchanger into the auxiliary heat exchanger.

[0061] Among them, the flow control instruction includes a first flow control instruction and a second flow control instruction. The first flow control instruction is used to control the reduction of water flow from the main heat exchanger into the auxiliary heat exchanger, and the second flow control instruction is used to control the increase of water flow from the main heat exchanger into the auxiliary heat exchanger.

[0062] The first temperature difference threshold refers to the maximum temperature difference threshold allowed between the bathroom water outlet temperature and the target bathroom water outlet temperature, indicating that the current bathroom water outlet temperature is too high. The first temperature difference threshold can be +0.5°C, indicating that the maximum difference between the bathroom water outlet temperature and the target bathroom water outlet temperature can be +0.5°C, that is, the bathroom water outlet temperature can be up to 0.5°C higher than the target bathroom water outlet temperature to reduce the water temperature difference. The first temperature difference threshold can also be set to other values ​​and can be adjusted according to the water temperature control requirements, which is not limited in this embodiment. The first flow control instruction is used to control the reduction of the water flow from the main heat exchanger into the auxiliary heat exchanger.

[0063] The second temperature difference threshold refers to the minimum temperature difference threshold allowed for the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature, indicating that the current bathroom water outlet temperature is too low. The second temperature difference threshold can be -0.5°C, indicating that the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature can be as low as -0.5°C, that is, the bathroom water outlet temperature can be as low as 0.5°C lower than the target bathroom water outlet temperature to reduce the water temperature difference. The second temperature difference threshold can also be set to other values ​​and can be adjusted according to the water temperature control requirements, which is not limited in this embodiment. The second flow control instruction is used to control the increase in water flow from the main heat exchanger into the auxiliary heat exchanger.

[0064] Specifically, the wall-mounted boiler controller subtracts the bathroom outlet water temperature from the target bathroom outlet water temperature to obtain the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature, and compares the difference with the preset temperature difference threshold to obtain the relationship between the difference and the preset temperature difference threshold. If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than the first temperature difference threshold, the bathroom outlet water temperature adjustment strategy is determined to be to lower the bathroom outlet water temperature. According to the bathroom outlet water temperature lowering strategy, the first flow control instruction is output to control the reduction of the water flow from the main heat exchanger to the auxiliary heat exchanger. After the hot water flow from the main heat exchanger to the auxiliary heat exchanger becomes smaller, the hot water from the main heat exchanger to the auxiliary heat exchanger is reduced, so that the temperature of the outlet water mixed with the hot water entering from the main heat exchanger and the cold water entering from the cold water inlet pipe in the auxiliary heat exchanger decreases, and the bathroom outlet water temperature is reduced.

[0065] If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, the bathroom outlet water temperature adjustment strategy is determined to increase the bathroom outlet water temperature. According to the bathroom outlet water temperature increase strategy, a second flow control instruction is output to control and increase the water flow rate entering the auxiliary heat exchanger from the main heat exchanger. After the hot water flow rate entering the auxiliary heat exchanger from the main heat exchanger increases, the amount of hot water entering the auxiliary heat exchanger from the main heat exchanger increases, thereby increasing the temperature of the outlet water mixed with the hot water entering from the main heat exchanger and the cold water entering from the cold water inlet pipe in the auxiliary heat exchanger, and the bathroom outlet water temperature increases.

[0066] In this embodiment, when the bathroom water outlet temperature is too high, the water flow rate from the main heat exchanger to the auxiliary heat exchanger is reduced to adjust the bathroom water outlet temperature; when the bathroom water outlet temperature is too low, the water flow rate from the main heat exchanger to the auxiliary heat exchanger is increased to adjust the bathroom water outlet temperature so that the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature reaches the preset temperature difference threshold. In this embodiment, the preset temperature difference threshold is ±0.5°C. Of course, the preset temperature difference threshold can also be other values, which can be set according to the body temperature of different users or different seasons, and this embodiment is not limited here.

[0067] In one embodiment, according to the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and the preset temperature difference threshold, the flow control instruction is output, including:

[0068] If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than or equal to the second temperature difference threshold and less than or equal to the first temperature difference threshold, the water flow rate from the main heat exchanger to the auxiliary heat exchanger is controlled to remain unchanged.

[0069] Specifically, the wall-mounted boiler controller subtracts the bathroom outlet water temperature from the target bathroom outlet water temperature to obtain the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature, and compares the difference with the preset temperature difference threshold to obtain the relationship between the difference and the preset temperature difference threshold. If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than or equal to the second temperature difference threshold and less than or equal to the first temperature difference threshold, that is, the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is within the temperature difference range of ±0.5°C, indicating that the temperature meets the temperature difference requirements and the bathroom outlet water temperature does not need to be adjusted, the water flow from the main heat exchanger into the auxiliary heat exchanger is controlled to remain unchanged and the current water flow is maintained.

[0070] In this embodiment, when the temperature difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is within the temperature difference range of ±0.5°C, it indicates that the temperature meets the temperature difference requirement, and the water flow rate entering the auxiliary heat exchanger from the main heat exchanger remains unchanged.

[0071] In one of the embodiments, after obtaining the current working state of the wall-mounted boiler, it also includes: when the working mode of the wall-mounted boiler is the bathroom mode, obtaining the bathroom water outlet temperature and the current heating power of the wall-mounted boiler; outputting a flow control instruction based on the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold, including: outputting a flow control instruction and / or adjusting the current heating power based on the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold, and the current heating power.

[0072] The current working state of the wall-mounted boiler includes the working mode of the wall-mounted boiler and the current heating power of the wall-mounted boiler. The working mode of the wall-mounted boiler includes the heating mode and the bathroom mode. The current heating power of the wall-mounted boiler is the heating power of the wall-mounted boiler at the current moment.

[0073] Specifically, when the wall-mounted boiler controller detects water flow in the bathroom water inlet pipe or the bathroom water outlet pipe through the flow sensor in the bathroom water inlet pipe or the bathroom water outlet pipe, it is determined that the working mode of the wall-mounted boiler is the bathroom mode. After that, the wall-mounted boiler controller obtains the bathroom water outlet temperature through the temperature sensor (such as the bathroom water outlet temperature sensor) set in the bathroom water outlet pipe, and obtains the target bathroom water outlet temperature and the current heating power of the wall-mounted boiler. The wall-mounted boiler controller subtracts the bathroom water outlet temperature from the target bathroom water outlet temperature to obtain the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature, compares the difference with the preset temperature difference threshold, and obtains the relationship between the difference and the preset temperature difference threshold. According to the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold and the current heating power of the wall-mounted boiler, the bathroom water outlet temperature adjustment strategy is determined, and according to the bathroom water outlet temperature adjustment strategy, the corresponding flow control instruction is output and / or the current heating power is adjusted. The bathroom water outlet temperature adjustment strategy is used to increase or decrease the bathroom water outlet temperature.

[0074] In this embodiment, the bathroom water outlet temperature adjustment strategy is determined more accurately based on the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold and the current heating power of the wall-mounted boiler, and then the bathroom water outlet temperature is adjusted according to the bathroom water outlet temperature adjustment strategy so that the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature reaches the preset temperature difference threshold.

[0075] In one of the embodiments, based on the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold, as well as the current heating power, a flow control instruction is output and / or the current heating power is adjusted, including: if the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is greater than the first temperature difference threshold, and the current heating power is less than or equal to the first preset heating power, a first flow control instruction is output, and the first flow control instruction is used to control the reduction of the water flow entering the auxiliary heat exchanger from the main heat exchanger; if the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is greater than the first temperature difference threshold, and the current heating power is greater than the first preset heating power, the water flow entering the auxiliary heat exchanger from the main heat exchanger is controlled to remain unchanged, and the current heating power is reduced.

[0076] The flow control instruction includes a first flow control instruction, and the first flow control instruction is used to control and reduce the water flow from the main heat exchanger to the auxiliary heat exchanger. The first preset heating power is the minimum heating power of the whole wall-mounted boiler.

[0077] Specifically, the wall-mounted boiler controller subtracts the bathroom water outlet temperature from the target bathroom water outlet temperature to obtain the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature, compares the difference with the preset temperature difference threshold, obtains the relationship between the difference and the preset temperature difference threshold, and determines the relationship between the current heating power and the minimum heating power of the wall-mounted boiler. If the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is greater than the first temperature difference threshold and the current heating power is the minimum heating power, then the bathroom water outlet temperature adjustment strategy is determined to be to lower the bathroom water outlet temperature. Since the minimum heating power of the whole machine is affected by many factors, in some special cases, the current heating power of the wall-mounted boiler may be less than the minimum heating power, then the bathroom water outlet temperature adjustment strategy is determined to be to lower the bathroom water outlet temperature. At this time, since the bathroom water outlet temperature is too high and the current heating power of the wall-mounted boiler is already less than or equal to the minimum heating power, the current heating power cannot be lowered any further, and the water output can only be adjusted. According to the strategy for lowering the bathroom outlet water temperature, the first flow control instruction is output to control and reduce the water flow rate entering the auxiliary heat exchanger from the main heat exchanger. After the hot water flow rate entering the auxiliary heat exchanger from the main heat exchanger becomes smaller, the hot water entering the auxiliary heat exchanger from the main heat exchanger is reduced, thereby reducing the temperature of the outlet water after the hot water entering from the main heat exchanger and the cold water entering from the cold water inlet pipe in the auxiliary heat exchanger is mixed, and the bathroom outlet water temperature is reduced.

[0078] In this embodiment, when the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than the first temperature difference threshold and the current heating power is less than or equal to the minimum heating power of the wall-mounted boiler, the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is reduced to adjust the bathroom outlet water temperature so that the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature reaches the preset temperature difference threshold.

[0079] If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than the first temperature difference threshold and the current heating power is greater than the minimum heating power of the wall-mounted boiler, the bathroom outlet water temperature adjustment strategy is determined to lower the bathroom outlet water temperature. At this time, the bathroom outlet water temperature is too high, and the current heating power of the wall-mounted boiler is greater than the minimum heating power of the wall-mounted boiler, and the current heating power can be lowered. According to the bathroom outlet water temperature lowering strategy, the water flow from the main heat exchanger into the auxiliary heat exchanger is controlled to remain unchanged, and the current heating power of the wall-mounted boiler is reduced, so that the temperature of the hot water flowing from the main heat exchanger into the auxiliary heat exchanger drops, and the bathroom outlet water temperature is reduced.

[0080] In this embodiment, when the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is greater than the first temperature difference threshold and the current heating power is greater than the minimum heating power of the wall-mounted boiler, the current heating power is reduced to adjust the bathroom water outlet temperature. While reducing energy consumption, the bathroom water outlet temperature can also be lowered and maintained at the target value.

[0081] In one of the embodiments, based on the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold, as well as the current heating power, a flow control instruction is output and / or the current heating power is adjusted, including: if the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is less than the second temperature difference threshold, and the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is greater than or equal to the first preset flow rate, the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is controlled to maintain unchanged, and the current heating power is controlled to increase; if the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is less than the second temperature difference threshold, and the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is less than the first preset flow rate, a second flow control instruction is output, and the second flow control instruction is used to control the increase of the water flow rate entering the auxiliary heat exchanger from the main heat exchanger.

[0082] The flow control instruction includes a second flow control instruction.

[0083] Specifically, if the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is less than the second temperature difference threshold, a second flow control instruction is output, and the second flow control instruction is used to control the increase of water flow from the main heat exchanger into the auxiliary heat exchanger; or, if the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is less than the second temperature difference threshold, the current heating power of the wall-mounted boiler is controlled to increase.

[0084] The wall-mounted boiler controller subtracts the bathroom outlet water temperature from the target bathroom outlet water temperature to obtain the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature, and compares the difference with the preset temperature difference threshold to obtain the relationship between the difference and the preset temperature difference threshold. If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, the second flow control instruction is output to control the increase of the water flow from the main heat exchanger to the auxiliary heat exchanger. After the hot water flow from the main heat exchanger to the auxiliary heat exchanger increases, the amount of hot water entering the auxiliary heat exchanger from the main heat exchanger increases, thereby increasing the temperature of the outlet water mixed with the hot water entering from the main heat exchanger and the cold water entering from the cold water inlet pipe in the auxiliary heat exchanger, and the bathroom outlet water temperature increases.

[0085] Alternatively, if the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, the control is to increase the current heating power of the wall-mounted boiler, so that the temperature of the hot water entering the auxiliary heat exchanger from the main heat exchanger increases, thereby increasing the temperature of the outlet water mixed with the hot water entering from the main heat exchanger and the cold water entering from the cold water inlet pipe in the auxiliary heat exchanger, and the bathroom outlet water temperature increases.

[0086] In a specific implementation, if the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, the water flow rate entering the auxiliary heat exchanger from the main heat exchanger can also be obtained. If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, and the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is less than the first preset flow rate, the bathroom outlet water temperature adjustment strategy is determined to increase the bathroom outlet water temperature. At this time, if the bathroom outlet water temperature is too low and the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is less than the first preset flow rate, the second flow control instruction is output to control the increase of the water flow rate entering the auxiliary heat exchanger from the main heat exchanger. After the hot water flow rate entering the auxiliary heat exchanger from the main heat exchanger increases, the amount of hot water entering the auxiliary heat exchanger from the main heat exchanger increases, thereby causing the temperature of the outlet water mixed with the hot water entering from the main heat exchanger and the cold water entering from the cold water inlet pipe in the auxiliary heat exchanger to rise, and the bathroom outlet water temperature increases. Among them, the first preset flow rate is the maximum water flow rate entering the auxiliary heat exchanger from the main heat exchanger, and the first preset flow rate value is determined by the pipe diameter entering the auxiliary heat exchanger from the main heat exchanger or the water inlet flow rate of the wall-mounted boiler.

[0087] If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, and the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is greater than or equal to the first preset flow rate, the current heating power of the wall-mounted boiler is obtained. If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is greater than or equal to the first preset flow rate, and the current heating power of the wall-mounted boiler is greater than or equal to the first preset heating power and less than the second preset heating power, then it is determined that the bathroom outlet water temperature adjustment strategy is to increase the bathroom outlet water temperature. At this time, the bathroom outlet water temperature is too low and the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is already the maximum water flow rate, the water flow rate can no longer be increased, the current heating power of the current wall-mounted boiler is greater than or equal to the first preset heating power and less than the second preset heating power, and the current heating power can still be increased. According to the bathroom outlet water temperature increase strategy, the current heating power of the wall-mounted boiler is controlled to increase, so that the temperature of the hot water flowing into the auxiliary heat exchanger increases, and the bathroom outlet water temperature rises. The second preset heating power is the rated heating power of the wall-mounted boiler, that is, the maximum heating power of the wall-mounted boiler.

[0088] In this embodiment, when the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold and the water flow rate from the main heat exchanger to the auxiliary heat exchanger is less than the first preset flow rate, the water flow rate is first controlled to increase to adjust the bathroom outlet water temperature. When the water flow rate is adjusted to the maximum, and the current heating power of the current wall-mounted boiler is greater than or equal to the first preset heating power and less than the second preset heating power, the current heating power is increased to increase the hot water temperature of the heating water outlet pipe entering the auxiliary heat exchanger, so that the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature reaches the preset temperature difference threshold.

[0089] In a specific implementation, if the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is less than the second temperature difference threshold, the magnitude relationship between the current heating power and the second preset heating power is determined. If the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is less than the second temperature difference threshold, and the current heating power is less than the second preset heating power, then the bathroom water outlet temperature adjustment strategy is determined to increase the bathroom water outlet temperature. At this time, the current heating power is less than the maximum heating power of the wall-mounted boiler, and the current heating power can be increased. Then, according to the bathroom water outlet temperature increase strategy, the current heating power of the wall-mounted boiler is controlled to increase, so that the temperature of the hot water flowing into the auxiliary heat exchanger increases, and the bathroom water outlet temperature increases.

[0090] If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, the magnitude relationship between the current heating power and the second preset heating power is determined. If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, and the current heating power is equal to the second preset heating power, then the bathroom outlet water temperature adjustment strategy is determined to increase the bathroom outlet water temperature. At this time, the current heating power is equal to the maximum heating power of the wall-mounted boiler and cannot be increased. Then, according to the bathroom outlet water temperature increase strategy, the second flow control instruction is output to control the increase in the water flow from the main heat exchanger to the auxiliary heat exchanger. After the hot water flow from the main heat exchanger to the auxiliary heat exchanger increases, the amount of hot water entering the auxiliary heat exchanger from the main heat exchanger increases, thereby increasing the temperature of the outlet water mixed with the hot water entering from the main heat exchanger and the cold water entering from the cold water inlet pipe in the auxiliary heat exchanger, and the bathroom outlet water temperature increases.

[0091] In this embodiment, when the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold and the current heating power is less than the second preset heating power, the current heating power of the wall-mounted boiler is first increased. When the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold and the current heating power is equal to the second preset heating power, at this time the current heating power is equal to the maximum heating power of the wall-mounted boiler and cannot be increased, the water flow from the main heat exchanger into the auxiliary heat exchanger is increased so that the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature reaches the preset temperature difference threshold.

[0092] In one embodiment, the flow control instruction includes an opening adjustment instruction; the opening adjustment instruction is used to control and adjust the opening of a two-way valve provided on a water outlet pipe of the main heat exchanger and a water inlet pipe of the auxiliary heat exchanger.

[0093] The opening of the two-way valve is determined by the difference between the opening of the two-way valve and the bathroom outlet water temperature and the target bathroom outlet water temperature. The difference and the opening of the two-way valve can be in a one-to-one correspondence, or a linear relationship. The opening of the two-way valve changes evenly with the change of the difference. The difference and the opening of the two-way valve can be in a many-to-one correspondence. Two or more difference intervals correspond to one opening of the two-way valve. The difference interval is determined according to the difference between the current bathroom outlet water temperature and the target bathroom outlet water temperature, and the corresponding opening of the two-way valve is determined according to the difference interval.

[0094] The first flow control instruction includes a first opening adjustment instruction. The first opening adjustment instruction is used to control and reduce the opening of the two-way valves provided on the water outlet pipe of the main heat exchanger and the water inlet pipe of the auxiliary heat exchanger. The first opening adjustment instruction is determined according to the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature.

[0095] Specifically, if the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is greater than the first temperature difference threshold, the two-way valve opening is determined according to the temperature difference between the bathroom water outlet temperature and the target bathroom water outlet temperature, and a first opening adjustment instruction is output to control the reduction of the opening of the two-way valve arranged on the water outlet pipe of the main heat exchanger and the water inlet pipe of the auxiliary heat exchanger.

[0096] In this embodiment, when the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than the first temperature difference threshold, the opening of the two-way valve is reduced to reduce the water flow rate entering the auxiliary heat exchanger from the main heat exchanger, so as to accurately adjust the bathroom outlet water temperature so that the bathroom outlet water temperature is reduced and maintained at the target value.

[0097] In specific implementation, the water flow from the main heat exchanger to the auxiliary heat exchanger can be further controlled by controlling the ratio of heating water to domestic water of the three-way valve, and the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature.

[0098] In one embodiment, the second flow control instruction includes a second opening adjustment instruction.

[0099] The second opening adjustment instruction is used to control and increase the opening of the two-way valves provided on the water outlet pipe of the main heat exchanger and the water inlet pipe of the auxiliary heat exchanger.

[0100] Specifically, when the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is less than the second temperature difference threshold, the two-way valve opening is determined according to the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature, and a second opening adjustment instruction is output to control the increase in the opening of the two-way valve arranged on the water outlet pipe of the main heat exchanger and the water inlet pipe of the auxiliary heat exchanger.

[0101] In this embodiment, when the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, the opening of the two-way valve is increased to increase the water flow rate entering the auxiliary heat exchanger from the main heat exchanger, so as to accurately adjust the bathroom outlet water temperature so that the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature reaches the preset temperature difference threshold.

[0102] In one of the embodiments, the first flow control instruction includes a first water pump frequency conversion instruction; the first water pump frequency conversion instruction is used to control and reduce the current water pump operating frequency of the wall-mounted boiler.

[0103] Specifically, when the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is greater than the first temperature difference threshold, the bathroom water outlet temperature needs to be lowered. The operating frequency of the water pump in the wall-mounted boiler is determined according to the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature, and the first water pump frequency conversion instruction is output to control the reduction of the current water pump operating frequency of the wall-mounted boiler. The amount of water entering the main heat exchanger is reduced, and therefore the amount of hot water flowing into the auxiliary heat exchanger after heating by the main heat exchanger is reduced, and the bathroom water outlet temperature after heat exchange by the auxiliary heat exchanger is also reduced accordingly.

[0104] In one of the embodiments, the second flow control instruction includes a second water pump frequency conversion instruction; the second water pump frequency conversion instruction is used to control and increase the current water pump operating frequency of the wall-mounted boiler.

[0105] Specifically, if the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, the bathroom outlet water temperature needs to be increased. The operating frequency of the wall-mounted boiler water pump is determined according to the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature, and a second water pump frequency conversion instruction is output to control the increase of the current water pump operating frequency of the wall-mounted boiler. The amount of water entering the main heat exchanger increases, and therefore the amount of hot water flowing into the auxiliary heat exchanger after heating by the main heat exchanger increases, and the bathroom outlet water temperature after heat exchange in the auxiliary heat exchanger also increases accordingly.

[0106] The operating frequency of the water pump of the wall-mounted boiler is determined according to the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature. The difference and the operating frequency of the water pump of the wall-mounted boiler can be in a one-to-one correspondence, or in a linear relationship. The frequency value changes with the change of the water temperature difference. The water temperature difference and the frequency value can be in a many-to-one correspondence. Two or more difference intervals correspond to the operating frequency of the water pump of a wall-mounted boiler. The difference interval is determined according to the difference between the current bathroom water outlet temperature and the target bathroom water outlet temperature, and the operating frequency of the water pump of the wall-mounted boiler is determined according to the difference interval.

[0107] In this embodiment, the operating frequency of the water pump of the wall-mounted boiler that needs to be adjusted is accurately determined by the correspondence between the difference and the operating frequency of the water pump of the wall-mounted boiler, and then based on the accurate operating frequency of the water pump of the wall-mounted boiler, the amount of water entering the main heat exchanger is controlled, so as to accurately control the outlet water temperature of the bathroom water.

[0108] In one of the embodiments, the method further includes: when entering the bathroom mode, controlling the wall-mounted boiler to heat with a first preset heating power.

[0109] Specifically, when the wall-mounted boiler controller detects that the flow value is greater than the preset flow through the flow sensor in the bathroom water outlet pipe or the bathroom water inlet pipe, it is determined that the working mode of the wall-mounted boiler is the bathroom mode, and the wall-mounted boiler heats at the minimum heating power. Because wall-mounted boilers are generally used for both heating and bathroom, when the bathroom function is used, at the minimum heating power of the wall-mounted boiler, the minimum heating power is greater than the required heating power, resulting in a higher bathroom water outlet temperature. Therefore, when the wall-mounted boiler working mode is the bathroom mode, it is ensured that the wall-mounted boiler heats at the minimum heating power, which can prevent the bathroom water outlet temperature from being too high and reduce the risk of scalding to users. Among them, the preset flow rate can be 0.

[0110] In order to facilitate understanding of the technical solutions provided in the embodiments of the present application, Figure 3 As shown, the wall-mounted boiler control method provided by the embodiment of the present application is briefly described with a complete wall-mounted boiler control process:

[0111] (1) Get the current working status of the boiler.

[0112] (2) When the working mode of the wall-mounted boiler is the bathroom mode, the opening of the two-way valve on the outlet pipe of the main heat exchanger and the inlet pipe of the auxiliary heat exchanger is controlled to be adjusted to the maximum opening; the bathroom outlet water temperature and the current heating power of the wall-mounted boiler are obtained.

[0113] (3) If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than the first temperature difference threshold, and the current heating power is less than or equal to the first preset heating power, a first opening adjustment instruction is output, and the first opening adjustment instruction is used to control the reduction of the opening of the two-way valve arranged on the outlet pipe of the main heat exchanger and the inlet pipe of the auxiliary heat exchanger.

[0114] (4) If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than the first temperature difference threshold, and the current heating power is greater than the first preset heating power, the control maintains the water flow from the main heat exchanger into the auxiliary heat exchanger unchanged and reduces the current heating power.

[0115] (5) If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, and the water flow rate from the main heat exchanger entering the auxiliary heat exchanger is greater than or equal to the first preset flow rate, the control is to maintain the water flow rate from the main heat exchanger entering the auxiliary heat exchanger unchanged, and the control is to increase the current heating power.

[0116] (6) If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, and the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is less than the first preset flow rate, a second flow control instruction is output, and the second flow control instruction is used to control and increase the water flow rate entering the auxiliary heat exchanger from the main heat exchanger.

[0117] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0118] Based on the same inventive concept, the embodiment of the present application also provides a wall-mounted boiler control device for implementing the wall-mounted boiler control method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more embodiments of the wall-mounted boiler control device provided below can refer to the limitations of the wall-mounted boiler control method above, and will not be repeated here.

[0119] In one embodiment, Figure 4 As shown, a wall-mounted boiler control device is provided, including: an acquisition module 402 and a control module 404, wherein:

[0120] The acquisition module 402 is used to acquire the current working state of the wall-mounted boiler, which includes the working mode of the wall-mounted boiler; and when the working mode of the wall-mounted boiler is the bathroom mode, acquire the bathroom water outlet temperature;

[0121] The control module 404 is used to output a flow control instruction based on the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and a preset temperature difference threshold. The flow control instruction is used to control the water flow from the main heat exchanger to the auxiliary heat exchanger.

[0122] In one embodiment, the flow control instruction includes a first flow control instruction and a second flow control instruction; the control module 404 is also used to output a first flow control instruction if the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than the first temperature difference threshold, and the first flow control instruction is used to control the reduction of the water flow entering the auxiliary heat exchanger from the main heat exchanger; if the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, the second flow control instruction is output, and the second flow control instruction is used to control the increase of the water flow entering the auxiliary heat exchanger from the main heat exchanger.

[0123] In one embodiment, the current working state of the wall-mounted boiler includes the working mode of the wall-mounted boiler and the current heating power of the wall-mounted boiler; the acquisition module 402 is also used to obtain the bathroom water outlet temperature and the current heating power of the wall-mounted boiler when the working mode of the wall-mounted boiler is the bathroom mode; the control module 404 is also used to output flow control instructions and / or adjust the current heating power based on the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold, as well as the current heating power.

[0124] In one embodiment, the flow control instruction includes a first flow control instruction; the control module 404 is also used to output a first flow control instruction if the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than a first temperature difference threshold, and the current heating power is less than or equal to a first preset heating power, and the first flow control instruction is used to control the reduction of the water flow from the main heat exchanger into the auxiliary heat exchanger; if the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than the first temperature difference threshold, and the current heating power is greater than the first preset heating power, the control maintains the water flow from the main heat exchanger into the auxiliary heat exchanger unchanged, and reduces the current heating power of the wall-mounted boiler.

[0125] In one embodiment, the flow control instruction includes a second flow control instruction; the control module 404 is also used to control the water flow from the main heat exchanger to the auxiliary heat exchanger to remain unchanged and control the increase of the current heating power if the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, and the water flow from the main heat exchanger to the auxiliary heat exchanger is greater than or equal to the first preset flow; if the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, and the water flow from the main heat exchanger to the auxiliary heat exchanger is less than the first preset flow, output a second flow control instruction, and the second flow control instruction is used to control the increase of the water flow from the main heat exchanger to the auxiliary heat exchanger.

[0126] In one embodiment, the flow control instruction includes an opening adjustment instruction; the opening adjustment instruction is used to control and adjust the opening of a two-way valve arranged on the outlet pipe of the main heat exchanger and the inlet pipe of the auxiliary heat exchanger; the opening of the two-way valve is determined by the opening of the two-way valve and the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature.

[0127] In one embodiment, the control module 404 is further configured to control the wall-mounted boiler to perform heating at a first preset heating power when entering the bathroom mode.

[0128] Each module in the above-mentioned wall-mounted boiler control device can be implemented in whole or in part by software, hardware or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each of the above modules.

[0129] In one embodiment, a wall-mounted boiler is provided. Figure 5 As shown, it includes a main heat exchanger 1 and an auxiliary heat exchanger 2. The outlet pipe of the main heat exchanger is connected to the water inlet pipe and / or the heating end A of the auxiliary heat exchanger through a three-way valve 4. A two-way valve 3 is arranged on the water inlet pipe of the auxiliary heat exchanger. A temperature sensor 5 is arranged on the outlet pipe B of the auxiliary heat exchanger. A flow sensor 6 is arranged on the cold water inlet pipe C of the auxiliary heat exchanger, and a variable frequency water pump 7 is arranged on the water inlet pipe D of the main heat exchanger.

[0130] After the variable frequency water pump 7 is started, the main heat exchanger enters the working state; when the flow sensor 6 detects the water flow, the three-way valve 4 is controlled to connect the outlet pipe of the main heat exchanger with the hot water inlet pipe of the auxiliary heat exchanger;

[0131] The temperature sensor 5 detects the bathroom water outlet temperature, and controls the opening of the two-way valve 3 to adjust the water flow from the main heat exchanger to the auxiliary heat exchanger according to the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold.

[0132] In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as follows: Figure 6 As shown. The computer device includes a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. When the computer program is executed by the processor, a wall-mounted boiler control method is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a button, a trackball or a touch pad set on the computer device housing, or an external keyboard, touch pad or mouse, etc.

[0133] Those skilled in the art will understand that Figure 6 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0134] In one embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above method embodiments when executing the computer program.

[0135] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0136] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0137] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0138] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0139] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0140] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A wall-mounted boiler control method, characterized in that: The method comprises: Obtaining the current working state of the wall-mounted boiler, wherein the current working state of the wall-mounted boiler includes the working mode of the wall-mounted boiler and the current heating power of the wall-mounted boiler; When the working mode of the wall-mounted boiler is the bathroom mode, obtaining the bathroom water outlet temperature and the current heating power of the wall-mounted boiler; According to the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and the preset temperature difference threshold, as well as the current heating power, a flow control instruction is output and / or the current heating power is adjusted, wherein the flow control instruction is used to control the amount of water flow entering the auxiliary heat exchanger from the main heat exchanger; a variable frequency water pump is provided on the water inlet pipe of the main heat exchanger, the water outlet pipe of the main heat exchanger is connected to the water inlet pipe and / or the heating end of the auxiliary heat exchanger through a three-way valve, and a two-way valve is provided on the water inlet pipe of the auxiliary heat exchanger, and the flow control instruction is used for the opening of the two-way valve and the ratio of heating water to domestic water of the three-way valve to adjust the amount of water flow; Wherein, the flow control instruction includes a first flow control instruction and a second flow control instruction, the first flow control instruction includes a first opening adjustment instruction and a first water pump frequency conversion instruction, and the second flow control instruction includes a second opening adjustment instruction and a second water pump frequency conversion instruction; Outputting a flow control instruction and / or adjusting the current heating power according to the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and a preset temperature difference threshold, and the current heating power, includes: If the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is greater than the first temperature difference threshold, and the current heating power is less than or equal to the first preset heating power, a first opening adjustment instruction and a first water pump frequency conversion instruction are output, wherein the first opening adjustment instruction is used to control the reduction of the opening of the two-way valve; the first water pump frequency conversion instruction is used to control the reduction of the operating frequency of the variable frequency water pump; the first temperature difference threshold represents the maximum temperature difference threshold allowed for the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature; the first preset heating power is the minimum heating power of the wall-mounted boiler; If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than the first temperature difference threshold, and the current heating power is greater than the first preset heating power, the water flow rate from the main heat exchanger to the auxiliary heat exchanger is controlled to remain unchanged, and the current heating power is reduced; If the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is less than the second temperature difference threshold, a second opening adjustment instruction and a second water pump frequency conversion instruction are output, the second opening adjustment instruction is used to control the increase of the opening of the two-way valve; the second water pump frequency conversion instruction is used to control the increase of the operating frequency of the variable frequency water pump; the second temperature difference threshold represents the minimum temperature difference threshold allowed for the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature.

2. The method according to claim 1, characterized in that The working mode of the wall-mounted boiler includes a bathroom mode, and obtaining the current working state of the wall-mounted boiler includes: When the flow sensor in the bathroom water inlet pipe or the bathroom water outlet pipe detects that there is water flow in the bathroom water outlet pipe, it is determined that the working mode of the wall-mounted boiler is the bathroom mode.

3. The method according to claim 1, characterized in that Outputting a flow control instruction and / or adjusting the current heating power according to the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and a preset temperature difference threshold, and the current heating power, includes: If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, and the water flow rate from the main heat exchanger entering the auxiliary heat exchanger is greater than or equal to the first preset flow rate, the water flow rate from the main heat exchanger entering the auxiliary heat exchanger is controlled to remain unchanged, and the current heating power is controlled to increase; If the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is less than the second temperature difference threshold, and the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is less than the first preset flow rate, a second flow control instruction is output, and the second flow control instruction is used to control the increase of the water flow rate entering the auxiliary heat exchanger from the main heat exchanger.

4. The method according to claim 1, characterized in that: The method further comprises: When entering the bathroom mode, the wall-mounted boiler is controlled to heat at a first preset heating power.

5. A wall-mounted boiler, characterized in that: Used to execute the wall-mounted boiler control method according to any one of claims 1 to 4, the wall-mounted boiler comprises a main heat exchanger and an auxiliary heat exchanger, a variable frequency water pump is arranged on the water inlet pipe of the main heat exchanger, the water outlet pipe of the main heat exchanger is connected with the water inlet pipe and / or the heating end of the auxiliary heat exchanger through a three-way valve, a two-way valve is arranged on the water inlet pipe of the auxiliary heat exchanger, a temperature sensor is arranged on the water outlet pipe of the auxiliary heat exchanger, and a flow sensor is arranged on the cold water inlet pipe of the auxiliary heat exchanger; When the flow sensor detects water flow, the three-way valve is controlled to connect the water outlet pipe of the main heat exchanger with the hot water inlet pipe of the auxiliary heat exchanger; The temperature sensor detects the bathroom water outlet temperature, outputs a flow control instruction based on the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and a preset temperature difference threshold, controls and adjusts the opening of the two-way valve and the ratio of heating water to domestic water of the three-way valve, and adjusts the water flow rate entering the auxiliary heat exchanger from the main heat exchanger.

6. A wall-mounted boiler control device, characterized in that: The device comprises: An acquisition module is used to acquire the current working state of the wall-mounted boiler, wherein the current working state of the wall-mounted boiler includes the working mode of the wall-mounted boiler and the current heating power of the wall-mounted boiler; And when the working mode of the wall-mounted boiler is the bathroom mode, the bathroom water outlet temperature and the current heating power of the wall-mounted boiler are obtained; The control module outputs a flow control instruction and / or adjusts the current heating power according to the relationship between the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature and a preset temperature difference threshold, as well as the current heating power, wherein the flow control instruction is used to control the amount of water flow entering the auxiliary heat exchanger from the main heat exchanger; a variable frequency water pump is provided on the water inlet pipe of the main heat exchanger, the water outlet pipe of the main heat exchanger is connected to the water inlet pipe and / or the heating end of the auxiliary heat exchanger through a three-way valve, and a two-way valve is provided on the water inlet pipe of the auxiliary heat exchanger, and the flow control instruction is used for the opening of the two-way valve and the ratio of heating water to domestic water of the three-way valve to adjust the amount of water flow; Wherein, the flow control instruction includes a first flow control instruction and a second flow control instruction, the first flow control instruction includes a first opening adjustment instruction and a first water pump frequency conversion instruction, and the second flow control instruction includes a second opening adjustment instruction and a second water pump frequency conversion instruction; Outputting a flow control instruction and / or adjusting the current heating power according to the relationship between the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature and a preset temperature difference threshold, and the current heating power, includes: If the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is greater than the first temperature difference threshold, and the current heating power is less than or equal to the first preset heating power, a first opening adjustment instruction and a first water pump frequency conversion instruction are output, wherein the first opening adjustment instruction is used to control the reduction of the opening of the two-way valve; the first water pump frequency conversion instruction is used to control the reduction of the operating frequency of the variable frequency water pump; the first temperature difference threshold represents the maximum temperature difference threshold allowed for the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature; the first preset heating power is the minimum heating power of the wall-mounted boiler; If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is greater than the first temperature difference threshold, and the current heating power is greater than the first preset heating power, the water flow rate from the main heat exchanger to the auxiliary heat exchanger is controlled to remain unchanged, and the current heating power is reduced; If the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is less than the second temperature difference threshold, a second opening adjustment instruction and a second water pump frequency conversion instruction are output, the second opening adjustment instruction is used to control the increase of the opening of the two-way valve; the second water pump frequency conversion instruction is used to control the increase of the operating frequency of the variable frequency water pump; the second temperature difference threshold represents the minimum temperature difference threshold allowed for the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature.

7. The device according to claim 6, characterized in that The control module is also used for: If the difference between the bathroom outlet water temperature and the target bathroom outlet water temperature is less than the second temperature difference threshold, and the water flow rate from the main heat exchanger entering the auxiliary heat exchanger is greater than or equal to the first preset flow rate, the water flow rate from the main heat exchanger entering the auxiliary heat exchanger is controlled to remain unchanged, and the current heating power is controlled to increase; If the difference between the bathroom water outlet temperature and the target bathroom water outlet temperature is less than the second temperature difference threshold, and the water flow rate entering the auxiliary heat exchanger from the main heat exchanger is less than the first preset flow rate, a second flow control instruction is output, and the second flow control instruction is used to control the increase of the water flow rate entering the auxiliary heat exchanger from the main heat exchanger.

8. The device according to claim 6, characterized in that The control module is also used to control the wall-mounted boiler to heat with a first preset heating power when entering the bathroom mode.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 4 are implemented.

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