Scale detection methods, descaling capacity testing methods, and electronic equipment

Abstract

This invention relates to a scale detection method, a descaling capacity detection method, and an electronic device. The scale detection method includes: acquiring a first actual heating rate when the water heating device operates along a first heat exchange path, and a second actual heating rate when operating along a second heat exchange path; determining a first heating rate difference based on the change in the first actual heating rate relative to a first reference heating rate, and a second heating rate difference based on the change in the second actual heating rate relative to a second reference heating rate; and determining the scale detection result of the water heating device based on the first heating rate difference and the second heating rate difference. The embodiments of this application enable the detection of scale accumulation in a water heating device without the need for a separate scale detection device, allowing for timely activation of a descaling device and reducing the scale detection cost of the water heating device.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a method for detecting scale, a method for detecting descaling capacity, and an electronic device. Background Technology

[0002] With increasing emphasis on environmental protection and energy utilization, heat pump water heaters, which utilize the heat generated by the outdoor condenser during air conditioning cooling to heat the water in the tank of a heat pump water heater and thus achieve energy reuse, are becoming increasingly popular among consumers.

[0003] However, both traditional heat pump water heaters and multi-split air conditioning units face problems such as scale buildup on the heat exchange surface after prolonged use, leading to reduced heat transfer efficiency, increased operating temperature, and increased energy loss.

[0004] Current technologies typically involve installing scale detection devices, such as TDS monitoring modules, for detection. However, installing scale detection devices increases costs, and some devices experience a gradual increase in detection error after prolonged use. Summary of the Invention

[0005] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a method for detecting scale, a method for detecting descaling capacity, and an electronic device.

[0006] Firstly, this application provides a method for detecting scale, including:

[0007] The first actual heating rate of the water heating device when it operates along the first heat exchange path, and the second actual heating rate when it operates along the second heat exchange path are obtained.

[0008] The change of the first actual heating rate relative to the first reference heating rate is used to determine the first heating rate difference, and the change of the second actual heating rate relative to the second reference heating rate is used to determine the second heating rate difference.

[0009] The scale detection result of the water heating device is determined based on the first heating rate difference and the second heating rate difference.

[0010] Optionally, determining the scale detection result based on the first heating rate difference and the second heating rate difference includes:

[0011] The degree of influence of scale adhesion on the heating rate is calculated based on the first heating rate difference and the second heating rate difference;

[0012] Determine the target threshold range within which the degree of influence falls;

[0013] The scale detection results corresponding to the target threshold range are determined as the scale detection results of the water heating device.

[0014] Optionally, obtaining the first actual heating rate of the water heating device operating along the first heat exchange path and the second actual heating rate of the water heating device operating along the second heat exchange path includes:

[0015] The average heating rate after the water temperature continuously rises to a preset temperature when the water heating device operates according to the first heat exchange path is determined, and is used as the first actual heating rate.

[0016] The average rate of temperature rise after the water heating device continuously increases to a preset temperature when it operates according to the second heat exchange path is determined, and is used as the second actual temperature rise rate.

[0017] Optionally, determining the first heating rate difference by determining the change in the first actual heating rate relative to the first reference heating rate, and determining the second heating rate difference by determining the change in the second actual heating rate relative to the second reference heating rate, includes:

[0018] The difference between the first actual heating rate and the first reference heating rate is determined and used as the first heating rate difference.

[0019] The difference between the second actual heating rate and the second reference heating rate is determined and used as the second heating rate difference.

[0020] Secondly, this application provides a method for testing descaling ability, including:

[0021] The difference in the third actual heating rate when the water heating device operates along the first heat exchange path before descaling is obtained, and the difference in the fourth actual heating rate when it operates along the third heat exchange path.

[0022] The difference in the fifth actual heating rate when the water heating device operates according to the first heat exchange path after descaling is obtained, and the difference in the sixth actual heating rate when it operates according to the third heat exchange path are obtained.

[0023] Determine a first change in the fifth actual heating rate difference relative to the third actual heating rate difference, and a second change in the sixth actual heating rate difference relative to the fourth actual heating rate difference;

[0024] The descaling capacity of the descaling device in the water heating device is determined based on the first and second changes.

[0025] Optionally, determining the descaling capacity of the descaling device in the water heating device based on the first and second changes includes:

[0026] If the first change is greater than or equal to the first reference average temperature rise rate corresponding to the first heat exchange path, or if the second change is greater than or equal to the second reference average temperature rise rate corresponding to the third heat exchange path, it is determined that the descaling capacity of the descaling device is normal.

[0027] If the first change is less than the first reference average temperature rise rate corresponding to the first heat exchange path, and the second change is less than the second reference average temperature rise rate corresponding to the third heat exchange path, then the descaling capacity of the descaling device is determined to be abnormal.

[0028] Optionally, obtaining the difference in the third actual heating rate when the water heating device operates along the first heat exchange path before descaling, and the difference in the fourth actual heating rate when operating along the third heat exchange path, includes:

[0029] Determine the first heat exchange heating rate when the water heating device operates according to the first heat exchange path before descaling, and determine the third actual heating rate difference based on the first heat exchange heating rate and the first reference average heating rate corresponding to the first heat exchange path.

[0030] The second heat exchange heating rate is determined when the water heating device operates according to the third heat exchange path before descaling. The difference between the fourth actual heating rate and the second reference average heating rate corresponding to the third heat exchange path is then determined.

[0031] Optionally, obtaining the difference in the fifth actual heating rate when the water heating device operates along the first heat exchange path after descaling, and the difference in the sixth actual heating rate when operating along the third heat exchange path, includes:

[0032] Determine the third heat exchange heating rate when the water heating device operates according to the first heat exchange path after descaling, and determine the fifth actual heating rate difference based on the third heat exchange heating rate and the first reference average heating rate corresponding to the first heat exchange path.

[0033] The fourth heat exchange heating rate is determined when the water heating device operates according to the third heat exchange path after descaling. The sixth actual heating rate difference is determined based on the fourth heat exchange heating rate and the second reference average heating rate corresponding to the third heat exchange path.

[0034] Optionally, determining the first change of the fifth actual heating rate difference relative to the third actual heating rate difference, and the second change of the sixth actual heating rate difference relative to the fourth actual heating rate difference, includes:

[0035] The difference between the fifth actual heating rate difference and the third actual heating rate difference is determined as the first change case;

[0036] The difference between the sixth actual heating rate difference and the fourth actual heating rate difference is determined as the second change.

[0037] Thirdly, this application provides an electronic device, including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus;

[0038] Memory, used to store computer programs;

[0039] When the processor executes a program stored in the memory, it implements the scale detection method described in either the first aspect or the scale removal capability detection method described in either the second aspect.

[0040] Optionally, the electronic device includes: a multi-split air conditioning unit, a water heater, or other heating equipment with a water tank.

[0041] The technical solutions provided in this application have the following advantages compared with the prior art:

[0042] This application embodiment compares the heating rates of each heat exchange path in the water heating device, eliminates other factors affecting the heating rate of heat exchange, and estimates the scale adhesion based on the difference in heat exchange rates. This enables the detection of scale accumulation in the water heating device without the need for a scale detection device, so that the descaling device can be activated in time to remove scale and reduce the scale detection cost of the water heating device.

[0043] This application embodiment estimates the descaling capacity of the descaling device by comparing the difference in heating rate of each heat exchange path of the water heating device before and after descaling, thereby realizing the detection of the descaling capacity of the water heating device descaling device, so as to remind users to maintain and replace the descaling device in a timely manner, ensure the reliability of the water heating device descaling device, and improve the user's product experience. Attached Figure Description

[0044] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0045] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 A flowchart of a scale detection method provided in this application embodiment;

[0047] Figure 2 A schematic diagram of the heat exchange path in a water heating device system provided in an embodiment of this application;

[0048] Figure 3 This application provides a flowchart of a scale detection method for a water heating device based on heating rate;

[0049] Figure 4 A flowchart illustrating a method for detecting descaling capacity provided in an embodiment of this application;

[0050] Figure 5 A method for detecting the descaling capacity of a water heating device based on the heating rate, provided in an embodiment of this application;

[0051] Figure 6 This is a structural diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0053] Existing technologies typically rely on installing scale detection devices, such as TDS monitoring modules, for detection. However, installing such devices increases costs, and the detection error of some devices gradually increases after prolonged use. Therefore, this application provides a scale detection method, a descaling capacity detection method, and an electronic device.

[0054] This application provides a method for detecting scale, such as... Figure 1 As shown, it includes the following steps:

[0055] Step S101: Obtain the first actual heating rate of the water heating device when it operates according to the first heat exchange path, and the second actual heating rate when it operates according to the second heat exchange path.

[0056] In this application embodiment, the heat exchange path of the water heating device generally has four types, such as... Figure 2As shown: Heat exchange path ①: When there is a cooling demand on the second device side, the heat from the second device is transferred to the water tank side for hot water heating through the heat pump and the second device; Heat exchange path ②: When there is a hot water demand, the heat from the first device is transferred to the water tank side for heating through the heat pump and the first device; Heat exchange path ③: When there is a heating demand on the second device side, the heat from the first device side is transferred to the second device side through the heat pump; Heat exchange path ④: When there is a cooling demand on the second device side but no hot water demand, the heat from the second device is transferred to the first device side through the heat pump and the second device. For example, the water heating device can be a heat pump water heater of a multi-split air conditioning unit. The multi-split air conditioning unit includes: one inverter split outdoor unit, multiple split indoor units, and a water heater tank. The first device can be the outdoor unit of the multi-split air conditioning unit, and the second device can be the indoor unit of the multi-split air conditioning unit.

[0057] in, Figure 2 Heat exchange path ② is the first heat exchange path in the following text, heat exchange path ③ is the second heat exchange path, and heat exchange path ① is the third heat exchange path.

[0058] In one embodiment of this application, step S101, obtaining the first actual heating rate of the water heating device operating along the first heat exchange path and the second actual heating rate of the water heating device operating along the second heat exchange path, includes: determining the average heating rate after the water temperature of the water heating device continuously rises to a preset temperature when operating along the first heat exchange path, as the first actual heating rate; and determining the average heating rate after the water temperature of the water heating device continuously rises to a preset temperature when operating along the second heat exchange path, as the second actual heating rate.

[0059] Step S102: Determine the first heating rate difference by determining the change of the first actual heating rate relative to the first reference heating rate, and determine the second heating rate difference by determining the change of the second actual heating rate relative to the second reference heating rate.

[0060] In one embodiment of this application, step S102, determining the change of the first actual heating rate relative to the first reference heating rate to determine a first heating rate difference, and determining the change of the second actual heating rate relative to the second reference heating rate to determine a second heating rate difference, includes: determining the difference between the first actual heating rate and the first reference heating rate as the first heating rate difference; and determining the difference between the second actual heating rate and the second reference heating rate as the second heating rate difference.

[0061] Step S103: Determine the scale detection result of the water heating device based on the first heating rate difference and the second heating rate difference.

[0062] In one embodiment of this application, step S103, which determines the scale detection result based on the first heating rate difference and the second heating rate difference, includes: calculating the degree of influence of scale adhesion on the heating rate based on the first heating rate difference and the second heating rate difference; determining the target threshold range in which the degree of influence is located; and determining the scale detection result corresponding to the target threshold range as the scale detection result of the water heating device.

[0063] This application embodiment compares the heating rates of each heat exchange path in the water heating device, eliminates other factors affecting the heating rate of heat exchange, and estimates the scale adhesion based on the difference in heat exchange rates. This enables the detection of scale accumulation in the water heating device without the need for a scale detection device, so that the descaling device can be activated in time to remove scale and reduce the scale detection cost of the water heating device.

[0064] For ease of understanding, such as Figure 3 As shown in the embodiments of this application, a method for detecting scale in a water heating device based on the heating rate is also provided.

[0065] Generally, in tap water with poor quality or high mineral content, scale easily accumulates in the refrigerant circulation pipes and inner walls of the water tank when heated, as the hot water does not circulate and cool. If the water heater is run for a long time without cleaning, the scale will gradually thicken, affecting heat exchange and requiring a longer time to heat a unit volume of tap water. By comparing the rate of temperature rise with a baseline test obtained without scale, the severity of scale buildup can be indirectly determined, i.e., the scale detection result, which serves as a reminder to the user to clean the water tank.

[0066] 1. Calculate the actual heating rate.

[0067] Every so often, the multi-split air conditioning units are set to... Figure 2 The heat exchange paths ② (i.e., the first heat exchange path) and ③ (i.e., the second heat exchange path) are run, and the actual temperature rise rate of heat exchange paths ② and ③ during heat exchange is calculated as follows:

[0068] The first actual heating rate δ2 is the water temperature T in the water heater tank below the heat exchange path ②. 水温 The time required to raise the temperature by 1°C, for example, if it takes 100 seconds to raise the temperature by 1°C, is actually calculated as δ2 as T to reduce errors. 水温 The average rate of temperature increase obtained after continuously increasing the temperature by n℃ is:

[0069] The second actual heating rate δ3 is the indoor ambient temperature T under heat exchange path ③. 内环 The time required to raise the temperature by 1°C is actually calculated as T to reduce errors. 内环The average rate of temperature increase obtained after continuously increasing the temperature by n℃ is:

[0070] Among them, the first actual heating rate and the second actual heating rate correspond to the water temperature heating rate, which represent the time required for the water temperature in the water heater tank to rise by 1°C; the indoor ambient temperature corresponds to the ambient temperature heating rate, which represents the time required for the indoor ambient temperature to rise by 1°C.

[0071] Average heating rate: The average heating rate required to raise the water temperature or indoor ambient temperature by 1℃ after the water temperature or ambient temperature has increased by n℃ is used to reduce errors.

[0072] In practical applications, the first actual heating rate and the second heating rate can also be calculated by how many degrees the temperature rises per unit time. The effect is the same, but the accuracy requirements for the temperature sensor will be higher.

[0073] Since heat exchange paths ② and ③ transfer heat from the outdoor side to the water tank or indoors, while heat exchange path ④ transfers heat from the indoor side to the outdoor unit side, the heat source and transfer direction are quite different from those of heat exchange paths ② and ③. Therefore, the factors that need to be considered when calculating the heating rate are also different. Thus, this application embodiment does not use heat exchange path ④ for calculation.

[0074] 2. Calculate the difference in heating rate.

[0075] Over time, the heating rate of each heat exchange path in a multi-split air conditioning unit will change, resulting in a difference from the initial reference rate.

[0076] The difference in the first heating rate Δδ2=δ2-δ 2基 Among them, the outdoor ambient temperature T 外环 Different, the first reference heating rate δ 2基 The values ​​may vary and can be determined based on actual testing.

[0077] The second heating rate difference Δδ3=δ3-δ 3基 Among them, the outdoor ambient temperature T 外环 Different, the second reference heating rate δ 3基 The values ​​may vary and can be determined based on actual testing.

[0078] Since heat exchange paths ② and ③ transfer heat from the outdoor side to the water tank or indoors, the higher the outer ring on the outdoor side, the faster the water tank or indoors heats up. That is, the shorter the time required for the water temperature or indoor ambient temperature to rise by 1°C, and the smaller the heating rate. Therefore, δ 2基 and δ 3基 The value of T 外环 Regarding, T 外环 The larger δ 2基and δ 3基 The smaller.

[0079] 3. Estimate the scale buildup, i.e., the scale test results.

[0080] After prolonged use, many factors can cause a decrease in the heating rate. However, the reasons for this decrease differ depending on the heat exchange path. For example, the decrease in the heating rate of heat exchange path ② is related to scale buildup in the water heater tank and aging of components such as the condenser on the outdoor unit side, but not to aging of components such as the evaporator on the indoor unit side. Conversely, the decrease in the heating rate of heat exchange path ③ is not related to scale buildup in the water heater tank, but to the condition of components in both the indoor and outdoor units. By comparing the heating rates of heat exchange paths ② and ③ and excluding other influencing factors besides scale buildup, the extent of scale buildup can be estimated more accurately.

[0081] The degree of influence of scale buildup on the heating rate: γ = Δδ² - αΔδ³

[0082] Among them, γ represents the more accurate influence of scale buildup on the heating rate of heat exchange path ②, α is determined based on actual testing, and αΔδ3 represents the influence of aging of components such as the outdoor unit condenser on the heating rate of heat exchange path ②.

[0083] Because different heat exchange paths have different factors affecting their heating rates, comparing heat exchange paths ② and ③, their heating rates are both affected by the aging of components such as the outdoor unit condenser. However, heat exchange path ② is affected by scale buildup in the water heater tank, while the heating rate of heat exchange path ③ is independent of the water heater. To accurately determine the impact of scale buildup on the heating rate of heat exchange path ②, the influence of aging components such as the outdoor unit condenser needs to be eliminated. Therefore, a parameter α is introduced, the value of which needs to be obtained through long-term experiments and is related to the structure and materials of the outdoor unit condenser.

[0084] The difference in heating rate between γ and heat exchange path ①, Δδ1, and the difference in heating rate between heat exchange path ④, Δδ4, are unrelated.

[0085] If γ ≥ γ1, meaning γ is within the target threshold range greater than or equal to γ1, it indicates severe scale buildup, requiring forced activation of the descaling device. If γ2 < γ < γ1, meaning γ is within the target threshold range greater than γ2 and less than γ1, it indicates that scale buildup has some impact on the heating rate, requiring the user to activate the descaling device. If γ ≤ γ2, meaning γ is within the target threshold range less than or equal to γ2, it indicates minimal scale buildup and a small impact on the heating rate. α, γ1, and γ2 are determined based on actual testing. γ = Δδ2 - αΔδ3 is used to exclude the influence of the heat exchange effects of other operating indoor and outdoor units on the water heater's heat exchange and heating rate.

[0086] Existing technologies employ numerous descaling methods, such as installing magnesium rods inside the water tank, using ultrasonic generators, and applying special coatings to the interior of electric water heaters. However, these methods gradually weaken or even disappear their descaling ability with prolonged use or device damage. Therefore, effective scale detection methods are needed to determine whether the descaling device's ability has diminished, reminding users to maintain or replace the equipment promptly. To this end, in another embodiment of this application, a descaling ability detection method is also provided, such as... Figure 4 As shown, it includes:

[0087] Step S201: Obtain the third actual heating rate difference when the water heating device operates according to the first heat exchange path before descaling, and the fourth actual heating rate difference when operating according to the third heat exchange path.

[0088] In one embodiment of this application, step S201, obtaining the third actual heating rate difference of the water heating device before descaling along the first heat exchange path and the fourth actual heating rate difference along the third heat exchange path, includes: determining the first heat exchange heating rate of the water heating device before descaling along the first heat exchange path; determining the third actual heating rate difference based on the first heat exchange heating rate and the first reference average heating rate corresponding to the first heat exchange path; determining the second heat exchange heating rate of the water heating device before descaling along the third heat exchange path; and determining the fourth actual heating rate difference based on the second heat exchange heating rate and the second reference average heating rate corresponding to the third heat exchange path.

[0089] Step S202: Obtain the fifth actual heating rate difference when the water heating device operates according to the first heat exchange path after descaling, and the sixth actual heating rate difference when it operates according to the third heat exchange path.

[0090] In one embodiment of this application, step S202, obtaining the fifth actual heating rate difference when the water heating device operates along the first heat exchange path after descaling, and the sixth actual heating rate difference when operating along the third heat exchange path, includes: determining the third heat exchange heating rate when the water heating device operates along the first heat exchange path after descaling, and determining the fifth actual heating rate difference based on the third heat exchange heating rate and the first reference average heating rate corresponding to the first heat exchange path; determining the fourth heat exchange heating rate when the water heating device operates along the third heat exchange path after descaling, and determining the sixth actual heating rate difference based on the fourth heat exchange heating rate and the second reference average heating rate corresponding to the third heat exchange path.

[0091] Step S203: Determine the first change of the fifth actual heating rate difference relative to the third actual heating rate difference, and the second change of the sixth actual heating rate difference relative to the fourth actual heating rate difference.

[0092] In one embodiment of this application, step S203, determining a first change in the fifth actual heating rate difference relative to the third actual heating rate difference, and a second change in the sixth actual heating rate difference relative to the fourth actual heating rate difference, includes: determining the difference between the fifth actual heating rate difference and the third actual heating rate difference as the first change; and determining the difference between the sixth actual heating rate difference and the fourth actual heating rate difference as the second change.

[0093] Step S204: Determine the descaling capacity of the descaling device in the water heating device based on the first change and the second change.

[0094] In one embodiment of this application, step S204 determines the descaling capacity of the descaling device in the water heating device based on the first change and the second change, including: if the first change is greater than or equal to the first reference average temperature rise rate corresponding to the first heat exchange path, or if the second change is greater than or equal to the second reference average temperature rise rate corresponding to the third heat exchange path, the descaling capacity of the descaling device is determined to be normal; if the first change is less than the first reference average temperature rise rate corresponding to the first heat exchange path, and the second change is less than the second reference average temperature rise rate corresponding to the third heat exchange path, the descaling capacity of the descaling device is determined to be abnormal.

[0095] This application embodiment estimates the descaling capacity of the descaling device by comparing the difference in heating rate of each heat exchange path of the water heating device before and after descaling, thereby realizing the detection of the descaling capacity of the water heating device descaling device, so as to remind users to maintain and replace the descaling device in a timely manner, ensure the reliability of the water heating device descaling device, and improve the user's product experience.

[0096] For ease of understanding, such as Figure 5 As shown in the embodiment of this application, a method for detecting the descaling capacity of a multi-split air conditioning unit based on the temperature rise rate is also provided. By detecting the difference in the rate of change of water temperature and ambient temperature before descaling, and finally comparing it with the difference in the rate of change of temperature rise rate after descaling, the improvement of the temperature rise rate after descaling is determined, thereby determining the descaling capacity of the descaling device.

[0097] 1. Calculate the difference in actual temperature rise rate before descaling.

[0098] Before each descaling, the multi-split air conditioning unit is operated according to heat exchange path ① (i.e., the third heat exchange path) and heat exchange path ② (i.e., the first heat exchange path), and the difference in the actual temperature rise rate of heat exchange path ① and heat exchange path ② during heat exchange is recorded.

[0099] First heat exchange heating rate δ 1前 The heat exchange heating rate of heat exchange path ① before descaling.

[0100]

[0101] Before descaling, the difference in the heating rate of heat exchange path ① (i.e., the difference in the third actual heating rate) is: Δδ 1前 =δ 1前 -δ 1基 ΔT 内环 Different, the first reference average heating rate δ 1基 The value varies and is determined based on actual testing; ΔT 内环 For T 水温 T after continuously increasing n℃ 内环 The difference in change.

[0102] Second heat exchange heating rate δ 2前 For heat exchange path ② before descaling, the heat exchange heating rate is...

[0103]

[0104] The difference in heating rate of heat exchange path ② before descaling (i.e., the difference in the fourth actual heating rate) is: Δδ 2前 =δ 2前 -δ 2基 T 外环 Different, the second benchmark average heating rate δ 2基 The values ​​will vary and will be determined based on actual testing.

[0105] 2. Calculate the difference in actual temperature rise rate after descaling.

[0106] After descaling, the multi-split air conditioning units were operated according to heat exchange path ① and heat exchange path ② respectively, and the difference in their heat exchange heating rate was recorded.

[0107] Third heat exchange heating rate δ 1后 For the heat exchange path ① after descaling, the heat exchange heating rate is...

[0108]

[0109] After descaling, the difference in the heating rate of heat exchange path ① (i.e., the difference in the fifth actual heating rate) is: Δδ 1后 =δ 1后 -δ 1基 .

[0110] T 水温 T after continuously increasing n℃ 内环 The difference in change ΔT 内环 Different, the first reference average heating rate δ 1基 The value varies, and I determined it based on actual testing; ΔT 内环 For T 水温 Indoor ambient temperature T after continuous increase of n℃ 内环 The difference in change.

[0111] Fourth heat exchange heating rate δ 2后 For the heat exchange path ② after descaling, the heat exchange heating rate is...

[0112]

[0113] After descaling, the difference in the heating rate of heat exchange path ② (i.e., the difference in the sixth actual heating rate) is: Δδ 2后 =δ 2后 -δ 2基 .

[0114] Outdoor ambient temperature T 外环 Different, the second benchmark average heating rate δ 2基 The values ​​will vary and will be determined based on actual testing.

[0115] 3. Estimate the descaling capacity of the descaling device.

[0116] The descaling capacity of the descaling device is estimated based on the change in the difference in heat exchange heating rate before and after descaling.

[0117] Calculate the change in the temperature rise rate difference of the heat exchange path ① before and after descaling (i.e., the first change scenario): Δδ 1差 =Δδ 1前 -Δδ 1后 ;

[0118] Calculate the change in the temperature rise rate difference of heat exchange path ② before and after descaling (i.e., the second change scenario): Δδ 2差 =Δδ 2前 -Δδ 2后 ;

[0119] If Δδ 1差 ≥Δδ 1基 or Δδ 2差 ≥Δδ 2基 This indicates that the descaling device has normal descaling capacity; if Δδ 1差 <Δδ 1基 And Δδ 2差 <Δδ 2基 This indicates that the descaling device's descaling capacity is abnormal. Δδ 1基 ,Δδ2基 Determined based on actual testing. Heat exchange path ① Average heating rate of water temperature reference.

[0120] The heating rates of both heat exchange paths ① and ② are affected by scale buildup. When descaling is required, the difference in heating rates before and after descaling is significant. After descaling, if the descaling device is functioning normally, the difference in heating rates before and after descaling will decrease. Therefore, calculating the difference in heating rates before and after descaling can be used to determine the descaling capacity of the descaling device. Different descaling devices have different descaling capacities. An experimental test can provide a baseline value. If the difference in heating rates before and after descaling is greater than or equal to the baseline value, it indicates that the descaling capacity is normal, and the heating rate increases after descaling; conversely, it indicates that the heating rate does not change much after descaling, and the descaling capacity is abnormal.

[0121] In another embodiment of this application, an electronic device is also provided, including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus.

[0122] Memory, used to store computer programs;

[0123] The processor, when executing a program stored in the memory, implements any of the aforementioned scale detection methods or any of the aforementioned descaling capability detection methods.

[0124] The electronic device provided in this embodiment of the invention uses a processor to execute a program stored in a memory to compare the heating rates of each heat exchange path of the water heating device, eliminate other factors affecting the heating rate of heat exchange, and estimate the scale adhesion based on the difference in heat exchange rates. This enables the detection of scale accumulation in the water heating device without the need for a scale detection device, so as to promptly activate the descaling device to remove scale and reduce the scale detection cost of the water heating device.

[0125] Alternatively, by comparing the difference in heating rates of each heat exchange path of the water heating device before and after descaling, the descaling capacity of the descaling device can be estimated, thereby enabling the detection of the descaling capacity of the water heating device. This will remind users to maintain or replace the descaling device in a timely manner, ensuring the reliability of the water heating device and improving the user's product experience.

[0126] The communication bus 1140 mentioned in the above-mentioned electronic device can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. This communication bus 1140 can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0127] The communication interface 1120 is used for communication between the above-mentioned electronic device and other devices.

[0128] The memory 1130 may include random access memory (RAM) or non-volatile memory, such as at least one disk storage device. Optionally, the memory may also be at least one storage device located remotely from the aforementioned processor.

[0129] The processor 1110 mentioned above can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0130] Optionally, the electronic device includes: a multi-split air conditioning unit, a water heater, or other heating equipment with a water tank.

[0131] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0132] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A method for detecting scale, characterized in that, include: The first actual heating rate of the water heating device when it operates according to the first heat exchange path and the second actual heating rate when it operates according to the second heat exchange path are obtained. The first heat exchange path is used to transfer the heat of the first device to the water tank side for heating through the heat pump and the first device when there is a demand for hot water. The second heat exchange path is used to transfer the heat of the first device side to the second device side through the heat pump when there is a demand for heating on the second device side. A first heating rate difference is determined based on the change of the first actual heating rate relative to the first reference heating rate, and a second heating rate difference is determined based on the change of the second actual heating rate relative to the second reference heating rate. The scale detection result of the water heating device is determined based on the first heating rate difference and the second heating rate difference. ,in, The difference in the first heating rate, This is the difference in the second heating rate. The effect of device aging of the first device on the heating rate of the first heat exchange path.

2. The scale detection method according to claim 1, characterized in that, The scale detection result is determined based on the first heating rate difference and the second heating rate difference, including: The degree of influence of scale adhesion on the heating rate is calculated based on the first heating rate difference and the second heating rate difference; Determine the target threshold range within which the degree of influence falls; The scale detection results corresponding to the target threshold range are determined as the scale detection results of the water heating device.

3. The scale detection method according to claim 1, characterized in that, Obtaining the first actual temperature rise rate of the water heating device operating along the first heat exchange path, and the second actual temperature rise rate operating along the second heat exchange path, includes: The average heating rate after the water temperature continuously rises to a preset temperature when the water heating device operates according to the first heat exchange path is determined, and is used as the first actual heating rate. The average rate of temperature rise after the water heating device continuously increases to a preset temperature when it operates according to the second heat exchange path is determined, and is used as the second actual temperature rise rate.

4. The scale detection method according to claim 1, characterized in that, Determining the change in the first actual heating rate relative to the first reference heating rate to determine the first heating rate difference, and determining the change in the second actual heating rate relative to the second reference heating rate to determine the second heating rate difference, includes: The difference between the first actual heating rate and the first reference heating rate is determined and used as the first heating rate difference. The difference between the second actual heating rate and the second reference heating rate is determined and used as the second heating rate difference.

5. A method for testing descaling ability, characterized in that, include: The difference in the third actual heating rate of the water heating device before descaling, when it operates along the first heat exchange path, and the difference in the fourth actual heating rate when it operates along the third heat exchange path, are obtained. The first heat exchange path is used to transfer the heat of the first device to the water tank side for heating when there is a demand for hot water production, through the heat pump and the first device. The third heat exchange path is used to transfer the heat of the second device to the water tank side for hot water heating when there is a demand for cooling on the second device side. The difference in the fifth actual heating rate when the water heating device operates according to the first heat exchange path after descaling is obtained, and the difference in the sixth actual heating rate when it operates according to the third heat exchange path are obtained. Determine a first change in the fifth actual heating rate difference relative to the third actual heating rate difference, and a second change in the sixth actual heating rate difference relative to the fourth actual heating rate difference; The descaling capacity of the descaling device in the water heating device is determined based on the first and second changes.

6. The method for detecting descaling ability according to claim 5, characterized in that, Determining the descaling capacity of the descaling device in the water heating device based on the first and second changes includes: If the first change is greater than or equal to the first reference average temperature rise rate corresponding to the first heat exchange path, or if the second change is greater than or equal to the second reference average temperature rise rate corresponding to the third heat exchange path, it is determined that the descaling capacity of the descaling device is normal. If the first change is less than the first reference average temperature rise rate corresponding to the first heat exchange path, and the second change is less than the second reference average temperature rise rate corresponding to the third heat exchange path, then the descaling capacity of the descaling device is determined to be abnormal.

7. The method for detecting descaling ability according to claim 5, characterized in that, The acquisition of the difference in the third actual heating rate when the water heating device operates along the first heat exchange path before descaling, and the difference in the fourth actual heating rate when operating along the third heat exchange path, includes: Determine the first heat exchange heating rate when the water heating device operates according to the first heat exchange path before descaling, and determine the third actual heating rate difference based on the first heat exchange heating rate and the first reference average heating rate corresponding to the first heat exchange path. The second heat exchange heating rate is determined when the water heating device operates according to the third heat exchange path before descaling. The difference between the fourth actual heating rate and the second reference average heating rate corresponding to the third heat exchange path is then determined.

8. The method for detecting descaling ability according to claim 5, characterized in that, The acquisition of the difference in the fifth actual temperature rise rate when the water heating device operates along the first heat exchange path after descaling, and the difference in the sixth actual temperature rise rate when operating along the third heat exchange path, includes: Determine the third heat exchange heating rate when the water heating device operates according to the first heat exchange path after descaling, and determine the fifth actual heating rate difference based on the third heat exchange heating rate and the first reference average heating rate corresponding to the first heat exchange path. The fourth heat exchange heating rate is determined when the water heating device operates according to the third heat exchange path after descaling. The sixth actual heating rate difference is determined based on the fourth heat exchange heating rate and the second reference average heating rate corresponding to the third heat exchange path.

9. The method for testing descaling ability according to claim 5, characterized in that, Determining the first change of the fifth actual heating rate difference relative to the third actual heating rate difference, and the second change of the sixth actual heating rate difference relative to the fourth actual heating rate difference, includes: The difference between the fifth actual heating rate difference and the third actual heating rate difference is determined as the first change case; The difference between the sixth actual heating rate difference and the fourth actual heating rate difference is determined as the second change.

10. An electronic device, characterized in that, It includes a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus; Memory, used to store computer programs; The processor, when executing a program stored in the memory, implements the scale detection method according to any one of claims 1 to 4 and / or the descaling ability detection method according to any one of claims 5 to 9.

11. The electronic device according to claim 10, characterized in that, The electronic device includes a heating device with a water tank.

Images