Pipeline leakage detection method, detection device, drainage device and air conditioner

Abstract

The application provides a pipeline water leakage detection method, a detection device, a drainage device and an air conditioner. The method is applied to a drainage device. The drainage device comprises a drainage pipeline and a plurality of water receiving tanks. The plurality of water receiving tanks are uniformly distributed at different positions below the drainage pipeline. The method comprises the following steps: acquiring the internal humidity of each water receiving tank; when the internal humidity of at least one water receiving tank reaches a preset humidity threshold, acquiring the dew point temperature of the environment where the drainage device is located and the pipeline wall temperature of the position of the drainage pipeline corresponding to the water receiving tank whose internal humidity reaches the preset humidity threshold; and judging whether the drainage pipeline leaks according to the comparison result of the pipeline wall temperature and the dew point temperature. Through the application, the water leakage false alarm caused by condensation can be eliminated from the source, so that whether the pipeline leaks can be accurately judged, and it is ensured that the repair instruction is triggered only when the pipeline leaks, thereby solving the problem that the waste of human resources caused by frequent false alarms in operation and maintenance.

Description

Technical Field

[0001] This application relates to the field of detection technology, and in particular to a method, detection device, drainage device and air conditioner for detecting pipe leaks. Background Technology

[0002] With the popularization of artificial intelligence, the explosive growth of IoT devices, and the deepening of digital transformation, data centers, as the heart and brain of the digital world, are more critical than ever before. To ensure the normal operation of data centers, air conditioners must be installed. However, the drainage pipes of these air conditioners are a potential threat with a high probability of leakage, making leak detection of these drainage pipes crucial.

[0003] Traditional water immersion detection mainly relies on a single leak detection rope or point-type humidity sensor. Once a leak signal is detected (by detecting humidity), the system issues an alarm and notifies maintenance personnel for on-site repair. However, during air conditioning operation, condensation easily forms on the pipe surface when the ambient humidity is high, especially in summer when the pipes are hot on the outside and cold on the inside. A single humidity sensor cannot distinguish whether the increased humidity is caused by a leak in the drainage pipe or by condensation, which can easily lead to false alarms and a large number of invalid alarms, thus wasting maintenance manpower.

[0004] There is currently no effective solution to the problem that when detecting leaks in drainage pipes, a single humidity sensor cannot distinguish whether the increased humidity is caused by the leak or by condensation, which easily leads to false alarms and a large number of invalid alarms. Summary of the Invention

[0005] This application provides a method, device, drainage device, and air conditioner for detecting pipe leaks, in order to solve the problem in the prior art that when detecting leaks in drainage pipes, a single humidity sensor cannot distinguish whether the increased humidity is caused by the leak or by condensation, which easily leads to false alarms and a large number of invalid alarms.

[0006] In a first aspect, this application provides a method for detecting pipe leaks, applied to a drainage device, the drainage device including a drainage pipe and multiple water collection tanks, the multiple water collection tanks being evenly distributed at different positions below the drainage pipe, the method comprising: Obtain the internal humidity of each water tank; When the internal humidity of at least one of the water receiving tanks reaches the preset humidity threshold, the dew point temperature of the environment where the drainage device is located and the pipe wall temperature of the drainage pipe at the location of the water receiving tank where the internal humidity reaches the preset humidity threshold are obtained. Based on the comparison between the pipe wall temperature and the dew point temperature, it is determined whether the drainage pipe is leaking.

[0007] In one possible implementation, determining whether the drainage pipe is leaking based on a comparison of the pipe wall temperature and the dew point temperature includes: Determine the range of the difference between the pipe wall temperature and the dew point temperature; If the difference is greater than the first threshold, it is determined that the drainage pipe is leaking; If the difference is greater than or equal to the second threshold and less than or equal to the first threshold, then the drainage pipe is judged to be leaking based on the proportion of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity of the water tank; wherein the first threshold is greater than zero and the second threshold is less than zero.

[0008] In one possible implementation, determining whether the drainage pipe is leaking based on the percentage of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity in the water tanks includes: Determine whether the percentage of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity of the water tanks meet a first preset condition; wherein, the first preset condition is that the percentage of water tanks whose internal humidity reaches the preset humidity threshold is lower than a first preset percentage, and the rate of change of internal humidity of the water tanks whose internal humidity reaches the preset humidity threshold is greater than a first preset rate of change. If the result is yes, then it is determined that the drainage pipe is leaking.

[0009] In one possible implementation, determining whether the drainage pipe is leaking based on the percentage of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity in the water tanks further includes: Determine whether the percentage of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity in the water tanks meet a second preset condition; wherein, the second preset condition is that the percentage of water tanks whose internal humidity reaches the preset humidity threshold is higher than a second preset percentage, and the rate of change of internal humidity in the water tanks whose internal humidity reaches the preset humidity threshold is less than a second preset rate of change; wherein, the second preset percentage is greater than a first preset percentage, and the second preset rate of change is less than a first preset rate of change. If the judgment result is yes, then it is determined that the drainage pipe is not leaking.

[0010] In one possible implementation, determining whether the drainage pipe is leaking based on the percentage of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity in the water tanks further includes: Determine whether the percentage of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity of the water tank simultaneously fail to meet the first preset condition and the second preset condition. If the judgment result is yes, a prompt will be made to request a manual judgment on whether the drainage pipe is leaking; Adjust the first preset percentage, the second preset percentage, the first preset change rate, and the second preset change rate based on the judgment results.

[0011] In one possible implementation, after determining the range of the difference between the pipe wall temperature and the dew point temperature, the method further includes: If the difference is less than the second threshold, and the proportion of water tanks whose internal humidity reaches the preset humidity threshold is lower than the first preset proportion, and the rate of change of internal humidity of the water tanks whose internal humidity reaches the preset humidity threshold is greater than the first preset rate of change, then it is determined that the first humidity sensor for detecting the internal humidity of the water tank or the first temperature sensor for detecting the pipe wall temperature is faulty.

[0012] In one possible implementation, the drainage device includes a plurality of first humidity sensors and a plurality of first temperature sensors. The first humidity sensors are correspondingly disposed in each water receiving tank, and the first temperature sensors are correspondingly disposed on the drainage pipe at positions corresponding to each water receiving tank. Each first humidity sensor and each first temperature sensor has unique location information. After determining that the drainage pipe is leaking, the method further includes: The location of the leak in the drainage pipe is determined based on the location information of the first humidity sensor and / or the first temperature sensor.

[0013] In one possible implementation, obtaining the dew point temperature of the environment in which the drainage device is located includes: The ambient temperature and humidity of the environment in which the drainage device is located are detected; The dew point temperature is determined based on the ambient temperature and the ambient humidity.

[0014] Secondly, this application provides a pipe leakage detection device, comprising: The first acquisition module is used to acquire the internal humidity of each water receiving tank; The second acquisition module is used to acquire the dew point temperature of the environment where the drainage device is located, and the pipe wall temperature of the drainage pipe corresponding to the water receiving tank where the internal humidity reaches the preset humidity threshold when the internal humidity of at least one of the water receiving tanks reaches the preset humidity threshold. The judgment module is used to determine whether the drainage pipe is leaking based on the comparison result of the pipe wall temperature and the dew point temperature.

[0015] Thirdly, a drainage device is provided that applies the above-mentioned pipe leakage detection method. The drainage device includes: Drainage pipes; Multiple water collection tanks are evenly distributed below the drainage pipe to collect condensate or leaking water from the drainage pipe. Multiple first humidity sensors are installed one-to-one in the multiple water receiving tanks to detect the internal humidity of the water receiving tanks; Multiple first temperature sensors are installed on the drainage pipe at positions corresponding to each water inlet, for detecting the pipe wall temperature.

[0016] In one possible implementation, the drainage device further includes: The second temperature sensor is installed in the environment where the drainage device is located to detect the ambient temperature; The second humidity sensor is installed in the environment where the drainage device is located to detect the ambient humidity.

[0017] In one possible implementation, the water receiving tank further includes: A drain outlet is located at the bottom of the water receiving tank; A control valve is installed on the drain outlet to control whether the drain outlet is opened; A drainage trough is provided below the water receiving trough, and the drainage trough is inclined at a preset angle.

[0018] Fourthly, an air conditioner is provided, including the aforementioned drainage device.

[0019] In one possible implementation, the air conditioner further includes a processor and a memory, the processor being used to execute a detection program stored in the memory to implement the above-described pipe leakage detection method.

[0020] Fifthly, a storage medium is provided that stores one or more programs, which can be executed by one or more processors to implement the above-described pipe leakage detection method.

[0021] Compared with the prior art, the above-mentioned technical solution provided in this application embodiment has the following advantages: The method provided in this application embodiment first obtains the internal humidity of each water receiving tank. When the internal humidity of at least one water receiving tank reaches a preset humidity threshold, the dew point temperature of the environment where the drainage device is located and the pipe wall temperature of the drainage pipe corresponding to the water receiving tank whose internal humidity reaches the preset humidity threshold are obtained. Based on the above pipe wall temperature and dew point temperature, it is determined whether the drainage pipe is leaking. If the pipe wall temperature and dew point temperature are close, it indicates that condensation may occur, and the increased humidity inside the water collection tank is due to the drop in condensation. If the pipe wall temperature is much higher than the dew point temperature, the possibility of condensation is low, indicating that there is indeed a leak. Therefore, based on the dew point temperature and the pipe wall temperature of the drainage pipe, the increase in humidity inside the water collection tank caused by condensation can be ruled out. Thus, a step is set up to determine the internal humidity of the water collection tank, as well as a step to compare the pipe wall temperature and the dew point temperature. By comparing the dew point temperature of the environment where the drainage device is located with the pipe wall temperature, false alarms caused by condensation can be eliminated from the root cause, thereby accurately determining whether the pipe is leaking. This ensures that maintenance commands are triggered only when there is a leak, thus solving the problem of frequent false alarms in operation and maintenance leading to a waste of human resources. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application 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.

[0024] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0025] Figure 1 A structural diagram of the drainage device provided in the embodiments of this application; Figure 2 A flowchart illustrating an embodiment of a pipe leakage detection method provided in this application; Figure 3 A flowchart illustrating another pipeline leakage detection method provided in this application embodiment; Figure 4 This is a structural block diagram of the pipeline leakage detection device provided in the embodiments of this application; Figure 5 This is a structural block diagram of another pipeline leakage detection device provided in an embodiment of this application; Figure 6 A structural diagram of another drainage device provided in an embodiment of this application; Figure 7 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of this application; Among them, 1-drainage pipe, 2-water receiving tank, 3-first temperature sensor, 4-first humidity sensor, 5-first temperature sensor, 6-second humidity sensor, 7-drain outlet, 8-control valve, 9-drainage tank. Detailed Implementation

[0026] 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.

[0027] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0028] Example 1 To address the technical problem in existing technologies where a single humidity sensor cannot distinguish between increased humidity caused by leakage and condensation when detecting leaks in drainage pipes, leading to false alarms and a large number of invalid alarms, this application provides a pipe leak detection method that can reduce the false alarm rate, thereby effectively reducing invalid alarms and avoiding the waste of maintenance manpower.

[0029] In this embodiment, the pipe leakage detection method is applied to a drainage device. Figure 1 A structural diagram of the drainage device provided in the embodiments of this application is shown below. Figure 1 As shown, the drainage device includes a drainage pipe 1 and multiple water receiving tanks 2. The multiple water receiving tanks 2 are evenly distributed at different positions below the drainage pipe 1. The drainage device also includes multiple first temperature sensors 3 and multiple first humidity sensors 4. The first humidity sensors 4 are correspondingly arranged in each water receiving tank, and the first temperature sensors 3 are correspondingly arranged on the drainage pipe 1 at positions corresponding to each water receiving tank 2.

[0030] Figure 2 A flowchart illustrating an embodiment of a pipe leakage detection method provided in this application is shown below. Figure 2 As shown, the method includes the following steps: S101, obtain the internal humidity of each water tank.

[0031] A first humidity sensor is installed in each water receiving tank to detect the internal humidity of the water receiving tank. Then, the detection value of each first humidity sensor is directly obtained through the acquisition module, that is, the humidity of each water receiving tank.

[0032] S102, when the internal humidity of at least one water receiving tank reaches a preset humidity threshold, obtain the dew point temperature of the environment where the drainage device is located, and the pipe wall temperature of the drainage pipe corresponding to the water receiving tank where the internal humidity reaches the preset humidity threshold.

[0033] There are multiple water collection tanks, which are evenly distributed at different locations on the drainage pipe. Each water collection tank corresponds to a location on the drainage pipe. It is determined whether the internal humidity of each water collection tank reaches the preset humidity threshold. If there is at least one water collection tank whose internal humidity reaches the preset humidity, the dew point temperature of the environment where the drainage device is located, as well as the pipe wall temperature of the drainage pipe corresponding to the water collection tank whose humidity exceeds the preset humidity threshold, are obtained.

[0034] S103. Based on the comparison results of pipe wall temperature and dew point temperature, determine whether the drainage pipe is leaking.

[0035] If the pipe wall temperature and the dew point temperature are close, it indicates that condensation may occur, and the increased humidity inside the water collection tank is caused by the drop in condensation. If the pipe wall temperature is much higher than the dew point temperature, it indicates that there may be a leak. Therefore, based on the dew point temperature and the pipe wall temperature of the drainage pipe, the possibility of increased humidity inside the water collection tank caused by condensation can be ruled out.

[0036] The technical solution provided in this application first obtains the internal humidity of each water receiving tank. When the internal humidity of at least one water receiving tank reaches a preset humidity threshold, the dew point temperature of the environment where the drainage device is located and the pipe wall temperature of the drainage pipe corresponding to the water receiving tank whose internal humidity reaches the preset humidity threshold are obtained. Based on the above pipe wall temperature and dew point temperature, it is determined whether the drainage pipe is leaking. If the pipe wall temperature and dew point temperature are close, it indicates that condensation may occur, and the increased humidity inside the water collection tank is due to the drop in condensation. If the pipe wall temperature is much higher than the dew point temperature, the possibility of condensation is low, indicating that there is indeed a leak. Therefore, based on the dew point temperature and the pipe wall temperature of the drainage pipe, the increase in humidity inside the water collection tank caused by condensation can be ruled out. Thus, a step is set up to determine the internal humidity of the water collection tank, as well as a step to compare the pipe wall temperature and the dew point temperature. By comparing the dew point temperature of the environment where the drainage device is located with the pipe wall temperature, false alarms caused by condensation can be eliminated from the root cause, thereby accurately determining whether the pipe is leaking. This ensures that maintenance commands are triggered only when there is a leak, thus solving the problem of frequent false alarms in operation and maintenance leading to a waste of human resources.

[0037] Example 2 This embodiment provides another method for detecting pipe leaks. As mentioned above, if the pipe wall temperature and dew point temperature are close, it indicates that condensation may occur, and the increased humidity inside the water collection tank is caused by the drop in condensation. If the pipe wall temperature is much higher than the dew point temperature, the possibility of condensation can be ruled out, indicating that a leak actually exists. Therefore, in this embodiment, in order to accurately eliminate false leak alarms caused by condensation, the method determines whether the drainage pipe is leaking based on the comparison results of the pipe wall temperature and dew point temperature, including: determining the range of the difference between the pipe wall temperature and the dew point temperature; if the difference is greater than a first threshold, it indicates that the pipe wall temperature is much higher than the dew point temperature, and the possibility of condensation is small, so it can be directly determined that the drainage pipe is leaking; if the difference is greater than or equal to a second threshold and less than or equal to the first threshold, it indicates that the pipe wall temperature and dew point temperature are close, and in this case, the increased humidity inside the water collection tank caused by condensation is considered. In addition, since different locations within the drainage pipes of the drainage system are in the same environment, condensation is likely to exist in most of the water collection tanks. Because the condensation process is slow, the amount of water produced is small, and the humidity change is slow. If the increase in humidity inside the water collection tank is caused by leakage, and the leakage only occurs in a localized area of ​​the pipe, then only a small portion of the water collection tanks may have high humidity. Furthermore, because the leakage is rapid, the humidity change is rapid. Therefore, the leakage of the drainage pipe can be determined by the percentage of water collection tanks whose internal humidity reaches a preset humidity threshold and the rate of change of internal humidity in the water collection tanks. The first threshold is greater than zero, and the second threshold is less than zero.

[0038] If the percentage of water tanks with internal humidity reaching the preset humidity threshold is lower than a certain value (e.g., 10%), meaning only a small portion of the water tanks have internal humidity reaching the preset humidity threshold, and the rate of change of internal humidity in the water tanks is higher than a certain threshold (e.g., a change of more than 30% per minute), then a leak is highly likely. To accurately identify this situation, the leak is determined based on the percentage of water tanks with internal humidity reaching the preset humidity threshold and the rate of change of internal humidity in the water tanks. This includes determining whether the leak in the drainage pipe meets a first preset condition. The first preset condition is that the percentage of water tanks with internal humidity reaching the preset humidity threshold is lower than a first preset percentage, and the rate of change of internal humidity in the water tanks with internal humidity reaching the preset humidity threshold is greater than a first preset rate of change. If the determination result is yes, then the drain pipe is determined to be leaking.

[0039] If the percentage of water tanks with internal humidity reaching a preset humidity threshold is higher than a certain value (e.g., 70%), meaning that most water tanks have internal humidity reaching the preset humidity threshold, and the rate of change of internal humidity in the water tanks is lower than a certain threshold (e.g., a change of 2% per minute), then condensation is very likely to have occurred. To accurately identify this situation, the determination of whether the drainage pipe is leaking is based on the percentage of water tanks with internal humidity reaching the preset humidity threshold and the rate of change of internal humidity in the water tanks. This also includes: determining whether the percentage of water tanks with internal humidity reaching the preset humidity threshold and the rate of change of internal humidity in the water tanks meet a second preset condition; wherein, the second preset condition is that the percentage of water tanks with internal humidity reaching the preset humidity threshold is higher than a second preset percentage, and the rate of change of internal humidity in the water tanks with internal humidity reaching the preset humidity threshold is less than a second preset rate of change; if the determination result is yes, then it is determined that the drainage pipe is not leaking.

[0040] The proportion of the second preset is greater than that of the first preset, and the rate of change of the second preset is less than that of the first preset.

[0041] Besides the two situations mentioned above, some abnormal situations may occur. For example, the proportion of water tanks reaching the preset humidity threshold may be high, but the internal humidity of the water tanks may change rapidly; or, the proportion of water tanks reaching the preset humidity threshold may be low, but the internal humidity of the water tanks may change slowly. In these cases, manual inspection can be performed to check for leaks, and the proportion threshold and change rate threshold can be adjusted accordingly. In summary, determining whether a drainage pipe is leaking based on the proportion of water tanks with internal humidity reaching the preset humidity threshold and the internal humidity change rate of the water tanks also includes: determining whether the proportion of water tanks with internal humidity reaching the preset humidity threshold and the internal humidity change rate of the water tanks simultaneously fail to meet the first preset condition and the second preset condition; if the determination result is yes, a prompt is issued to request manual inspection of whether the drainage pipe is leaking, and the first preset proportion, second preset proportion, first preset change rate, and second preset change rate are reset according to the determination result. For example, if the proportion of the water tank with the preset humidity threshold is higher than the second preset proportion, but the internal humidity change rate of the water tank is higher than the second preset change rate, and actual manual detection shows that leakage has occurred, it indicates that the second preset proportion is set too low. Therefore, the second preset proportion can be reduced. As another example, if the proportion of the water tank with the preset humidity threshold is lower than the first preset proportion, but the internal humidity change rate of the water tank is lower than the first preset change rate, and actual manual detection shows that leakage has occurred, it indicates that the first preset change rate is set too high. The first preset change rate should be reduced.

[0042] The drainage device includes multiple first humidity sensors and multiple first temperature sensors. Each first humidity sensor is correspondingly installed in each water receiving tank, and each first temperature sensor is correspondingly installed on the drainage pipe at a position corresponding to each water receiving tank. Each first humidity sensor and each first temperature sensor has unique location information. After determining that a leak has occurred in the drainage pipe, to quickly determine the specific location of the leak and improve maintenance efficiency, the method further includes: locking the leak location in the drainage pipe based on the location information of the first humidity sensors and / or the first temperature sensors. Specifically, by determining that a leak has occurred in the drainage pipe corresponding to one or more water receiving tanks based on the internal humidity values ​​detected by one or more first humidity sensors, the location information of one or more first humidity sensors can be obtained to pinpoint the specific location of the leak.

[0043] After determining the range of the difference between the pipe wall temperature and the dew point temperature, situations not mentioned above may occur. For example, the difference between the pipe wall temperature and the dew point temperature may be less than the second threshold, and the overall humidity may be high with rapid data changes. According to natural laws and design logic, this phenomenon should not occur. It should be recorded as special data. If this situation occurs multiple times, troubleshooting and optimization should be performed to see if there is a problem, such as inaccurate data collection by the temperature and humidity sensors. Therefore, after determining the range of the difference between the pipe wall temperature and the dew point temperature, the above method also includes: if the difference between the pipe wall temperature and the dew point temperature is less than the second threshold, and the proportion of water tanks with internal humidity reaching a preset humidity threshold is lower than the first preset proportion, and the rate of change of internal humidity in water tanks with internal humidity reaching the preset humidity threshold is greater than the first preset rate of change, then the first humidity sensor detecting the internal humidity of the water tank or the first temperature sensor detecting the pipe wall temperature is determined to be faulty.

[0044] The difference between the pipe wall temperature and the dew point temperature is less than the second threshold, indicating that the pipe wall temperature is lower than the dew point temperature, and the judgment result points to condensation. However, the proportion of water tanks with internal humidity reaching the preset humidity threshold is lower than the first preset proportion, and the rate of change of internal humidity of the water tanks with internal humidity reaching the preset humidity threshold is greater than the first preset rate of change. This indicates that the internal humidity of a small number of water tanks exceeds the preset humidity threshold, and the internal humidity of the water tanks changes rapidly, and the judgment result points to water leakage. It can be seen that the judgment results are contradictory, and it is very likely that the temperature and humidity sensor is malfunctioning.

[0045] To obtain the dew point temperature of the environment where the drainage device is located, the above method further includes: detecting the ambient temperature and ambient humidity of the environment where the drainage device is located; and determining the dew point temperature based on the ambient temperature and ambient humidity.

[0046] The dew point temperature T1 can be calculated using the Magnus formula, the most commonly used empirical formula in meteorology and HVAC fields, derived from the Tetens equation. The formula is: T1 = Where T1 is the calculated dew point temperature, T is the ambient temperature, RH is the ambient relative humidity (0-100%, e.g., 50% is denoted as 0.5), and constants a=17.27, b=237.7 (applicable to -40℃). <T2<50℃), As an intermediate variable, its calculation formula is: .

[0047] Example 3 This embodiment provides another method for detecting pipe leaks. Figure 3 A flowchart of another pipeline leakage detection method provided in the embodiments of this application is shown below. Figure 3 As shown, the method includes: S1. Obtain the ambient temperature and ambient humidity of the environment where the drainage device is located, and calculate the dew point temperature based on the ambient temperature and ambient humidity.

[0048] S2. When the internal humidity of the water receiving tank exceeds the preset humidity threshold, retrieve the above dew point temperature and compare it with the wall temperature of the drainage pipe.

[0049] S3. Determine whether the difference between the wall temperature T2 and the dew point temperature T1 satisfies: T2 - T1 > 2°C; if so, execute step S4; if not, execute step S5.

[0050] S4. Determine that there is a leak, and determine the leak location based on the position of the temperature sensor or humidity sensor.

[0051] S5. Determine whether the proportion of the water receiving tanks with humidity exceeding the preset humidity threshold is less than the first preset proportion and the internal humidity change rate of the water receiving tanks exceeds the first preset change rate; if so, execute step S4; if not, execute step S6.

[0052] S6. Determine whether the proportion of the water receiving tanks with humidity exceeding the preset humidity threshold is greater than the second preset proportion and the internal humidity change rate of the water receiving tanks with internal humidity reaching the preset humidity threshold is less than the second preset change rate; if so, execute step S7; if not, execute step S8.

[0053] S7. Determine that it is condensation.

[0054] S8. Record it as a special case for comprehensive analysis.

[0055] When the dew point temperature is obtained, if the water tank detects a high humidity signal, compare the calculated dew point temperature with the temperature T2 collected by the temperature sensor attached to the pipe wall. If T2 > (T1 + 2), directly determine that there is a leak and alarm, and determine the leak location of the pipe according to the position of the humidity sensor; when (T1 - 1) < T2 < (T1 + 2), considering some error factors, a secondary judgment is made here. If the humidity sensor is locally highly humid and the humidity changes rapidly (such as only 10% of the sensor humidity exceeds the preset humidity threshold and the humidity changes rapidly in one minute, such as exceeding 30%), it is also determined that there is a leak and an alarm is issued, and the leak location of the pipe is determined according to the position of the humidity sensor; if the humidity sensor is overall highly humid and the humidity changes slowly at this time (such as more than 70% of the humidity sensor humidity exceeds the preset humidity threshold and the humidity changes gently, such as 2% in one minute), it is determined that it is condensation and no treatment is required; except for these situations, other situations are recorded as special data as the basis for subsequent optimization and improvement.

[0056] The pipeline leakage detection method proposed in this application firstly breaks through the limitations of traditional single humidity alarms by introducing a segmented dual-sensor array of temperature and humidity. Based on the collected data, the theoretical dew point of the environment is calculated in real time and compared with the measured temperature of the pipe wall, establishing a physical rejection principle that a dew point higher than the dew point must indicate a leak (while also considering errors), thus eliminating false alarms caused by normal condensation due to high humidity. Secondly, by combining the data collected by spatially distributed sensors with the dynamic characteristics of the data, a multi-level and priority-based judgment strategy is specifically used to determine whether the pipeline is leaking or experiencing condensation in complex boundary conditions such as local low-temperature condensation and overall high-temperature leakage. This ensures that the system only triggers maintenance commands when a real leak is confirmed, thereby solving the problem of frequent false alarms and wasted human resources during operation and maintenance.

[0057] By introducing a physical comparison logic between pipe wall temperature and theoretical dew point, false alarms caused by normal condensation are eliminated at the source, ensuring that the system only triggers maintenance commands when a physical leak is confirmed. Furthermore, by utilizing the spatial distribution characteristics of the segmented sensor array and the changing trends of relevant data, a comprehensive analysis is performed on other situations prone to misjudgment before determining whether to trigger an alarm. This allows for precise fault location, significantly reducing the frequency of maintenance inspections and labor costs, and improving the operational safety and maintenance efficiency of the air conditioning system.

[0058] Example 4 This embodiment provides a pipe leakage detection device applied to a drainage system. The drainage system includes a drainage pipe and multiple water collection tanks. Figure 4 This is a structural block diagram of the pipeline leakage detection device provided in the embodiments of this application, such as... Figure 4 As shown, the detection device includes: The first acquisition module 10 is used to acquire the internal humidity of each water tank.

[0059] A first humidity sensor is installed in each water receiving tank to detect the internal humidity of the water receiving tank. Then, the detection value of each first humidity sensor is directly obtained through the acquisition module, that is, the humidity of each water receiving tank.

[0060] The second acquisition module 20 is used to acquire the dew point temperature of the environment where the drainage device is located, and the pipe wall temperature of the drainage pipe corresponding to the water receiving tank where the internal humidity reaches the preset humidity threshold when the internal humidity of at least one water receiving tank reaches the preset humidity threshold.

[0061] There are multiple water collection tanks, which are evenly distributed at different locations on the drainage pipe. Each water collection tank corresponds to a location on the drainage pipe. It is determined whether the internal humidity of each water collection tank reaches the preset humidity threshold. If there is at least one water collection tank whose internal humidity reaches the preset humidity, the dew point temperature of the environment where the drainage device is located, as well as the pipe wall temperature of the drainage pipe corresponding to the water collection tank whose humidity exceeds the preset humidity threshold, are obtained.

[0062] The judgment module 30 is used to determine whether the drainage pipe is leaking based on the comparison results of the pipe wall temperature and the dew point temperature.

[0063] If the pipe wall temperature and the dew point temperature are close, it indicates that condensation may occur, and the increased humidity inside the water collection tank is caused by the drop in condensation. If the pipe wall temperature is much higher than the dew point temperature, it indicates that there may be a leak. Therefore, based on the dew point temperature and the pipe wall temperature of the drainage pipe, the possibility of increased humidity inside the water collection tank caused by condensation can be ruled out.

[0064] The technical solution provided in this application first obtains the internal humidity of each water receiving tank. When the internal humidity of at least one water receiving tank reaches a preset humidity threshold, the dew point temperature of the environment where the drainage device is located and the pipe wall temperature of the drainage pipe corresponding to the water receiving tank whose internal humidity reaches the preset humidity threshold are obtained. Based on the above pipe wall temperature and dew point temperature, it is determined whether the drainage pipe is leaking. If the pipe wall temperature and dew point temperature are close, it indicates that condensation may occur, and the increased humidity inside the water collection tank is due to the drop in condensation. If the pipe wall temperature is much higher than the dew point temperature, the possibility of condensation is low, indicating that there is indeed a leak. Therefore, based on the dew point temperature and the pipe wall temperature of the drainage pipe, the increase in humidity inside the water collection tank caused by condensation can be ruled out. Thus, a step is set up to determine the internal humidity of the water collection tank, as well as a step to compare the pipe wall temperature and the dew point temperature. By comparing the dew point temperature of the environment where the drainage device is located with the pipe wall temperature, false alarms caused by condensation can be eliminated from the root cause, thereby accurately determining whether the pipe is leaking. This ensures that maintenance commands are triggered only when there is a leak, thus solving the problem of frequent false alarms in operation and maintenance leading to a waste of human resources.

[0065] If the pipe wall temperature and the dew point temperature are close, it indicates that condensation may occur, and the increased humidity inside the water tank is due to the drop in condensation. If the pipe wall temperature is much higher than the dew point temperature, the possibility of condensation can be ruled out, indicating that there is indeed a leak. Therefore, in this embodiment, in order to accurately eliminate false alarms of leakage caused by condensation, the judgment module 30 is specifically used to: determine the range of the difference between the pipe wall temperature and the dew point temperature; if the difference is greater than the first threshold, it indicates that the pipe wall temperature is much higher than the dew point temperature, and the possibility of condensation is small, so it can be directly determined that the drainage pipe is leaking; if the difference is greater than or equal to the second threshold and less than or equal to the first threshold, it indicates that the pipe wall temperature and the dew point temperature are close. At this time, if the increase in internal humidity of the water receiving tank is caused by condensation, since different locations of the drainage pipe in the drainage device are in the same environment, condensation may exist in most of the water receiving tanks. And since the condensation process is relatively slow, the amount of water produced is small, and the humidity change will be slow. If the increase in internal humidity of the water receiving tank is caused by leakage, the leakage only occurs in a local location of the pipe, so only a small part of the water receiving tank may have high internal humidity. And since the leakage is fast, the humidity change will be fast. Therefore, the proportion of water receiving tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity of the water receiving tank can be used to determine whether the drainage pipe is leaking. The first threshold is greater than zero, and the second threshold is less than zero.

[0066] If the percentage of water tanks with internal humidity reaching the preset humidity threshold is lower than a certain value (e.g., 10%), meaning only a small portion of the water tanks have internal humidity reaching the preset humidity threshold, and the rate of change of internal humidity in the water tanks is higher than a certain threshold (e.g., a change of more than 30% per minute), then it is highly likely that a leak has occurred. To accurately identify this situation, the judgment module 30 is further used to: determine whether the percentage of water tanks with internal humidity reaching the preset humidity threshold and the rate of change of internal humidity in the water tanks meet a first preset condition; wherein, the first preset condition is that the percentage of water tanks with internal humidity reaching the preset humidity threshold is lower than a first preset percentage, and the rate of change of internal humidity in the water tanks with internal humidity reaching the preset humidity threshold is greater than a first preset rate of change; if the judgment result is yes, then it is determined that the drainage pipe is leaking.

[0067] If the percentage of water tanks with internal humidity reaching the preset humidity threshold is higher than a certain value (e.g., 70%), meaning that most of the water tanks have internal humidity reaching the preset humidity threshold, and the rate of change of internal humidity in the water tanks is lower than a certain threshold (e.g., a change of 2% per minute), then condensation is very likely to have occurred. To accurately identify this situation, the judgment module 30 is further used to: determine whether the percentage of water tanks with internal humidity reaching the preset humidity threshold and the rate of change of internal humidity in the water tanks meet a second preset condition; wherein, the second preset condition is that the percentage of water tanks with internal humidity reaching the preset humidity threshold is higher than a second preset percentage, and the rate of change of internal humidity in the water tanks with internal humidity reaching the preset humidity threshold is less than a second preset rate of change; if the judgment result is yes, then it is determined that the drainage pipe is not leaking.

[0068] In addition to the two situations mentioned above, some abnormal situations may occur. For example, the proportion of water tanks reaching the preset humidity threshold may be high, but the internal humidity of the water tanks may change rapidly; or, the proportion of water tanks reaching the preset humidity threshold may be low, but the internal humidity of the water tanks may change slowly. In this case, a prompt can be issued to request manual judgment on whether the drainage pipe is leaking, and the proportion threshold and the rate of change threshold can be adjusted according to the leakage situation. In summary, the judgment module 30 is also used to: determine whether the proportion of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity of the water tanks simultaneously fail to meet the first preset condition and the second preset condition; if the judgment result is yes, then the drainage pipe is manually judged to be leaking, and the first preset proportion, the second preset proportion, the first preset rate of change, and the second preset rate of change are reset according to the judgment result. For example, if the proportion of the water tank with the preset humidity threshold is higher than the second preset proportion, but the internal humidity change rate of the water tank is higher than the second preset change rate, and actual manual detection shows that leakage has occurred, it indicates that the second preset proportion is set too low. Therefore, the second preset proportion can be reduced. As another example, if the proportion of the water tank with the preset humidity threshold is lower than the first preset proportion, but the internal humidity change rate of the water tank is lower than the first preset change rate, and actual manual detection shows that leakage has occurred, it indicates that the first preset change rate is set too high. The first preset change rate should be reduced.

[0069] The drainage device includes multiple first humidity sensors and multiple first temperature sensors. Each first humidity sensor is correspondingly installed in each water receiving tank, and each first temperature sensor is correspondingly installed on the drainage pipe at a position corresponding to each water receiving tank. Each first humidity sensor and each second temperature sensor has unique location information. After determining that a leak has occurred in the drainage pipe, in order to quickly determine the specific location of the leak and improve personnel maintenance efficiency, the determination module 30 is further configured to: lock the leak location in the drainage pipe based on the location information of the first humidity sensors and / or the first temperature sensors. Specifically, if a leak is determined to have occurred in the drainage pipe corresponding to one or more water receiving tanks based on the internal humidity values ​​detected by one or more first humidity sensors, the location information of one or more first humidity sensors can be obtained to lock the specific location of the leak.

[0070] After determining the range of the difference between the pipe wall temperature and the dew point temperature, situations not mentioned above may occur. For example, the difference between the pipe wall temperature and the dew point temperature may be less than the second threshold, and the overall humidity may be high with rapid data changes. According to natural laws and design logic, this phenomenon should not occur. It should be recorded as special data. If this situation occurs multiple times, troubleshooting and optimization should be performed to see if there is a problem, such as inaccurate data collection by the temperature and humidity sensors. Therefore, after determining the range of the difference between the pipe wall temperature and the dew point temperature, the determination module 30 is also used to: determine that the first humidity sensor detecting the internal humidity of the water tank or the first temperature sensor detecting the pipe wall temperature is faulty when the difference between the pipe wall temperature and the dew point temperature is less than the second threshold, the proportion of water tanks with internal humidity reaching the preset humidity threshold is lower than the first preset proportion, and the rate of change of internal humidity of water tanks with internal humidity reaching the preset humidity threshold is greater than the first preset rate of change.

[0071] The difference between the pipe wall temperature and the dew point temperature is less than the second threshold, indicating that the pipe wall temperature is lower than the dew point temperature, and the judgment result points to condensation. However, the proportion of water tanks with internal humidity reaching the preset humidity threshold is lower than the first preset proportion, and the rate of change of internal humidity of the water tanks with internal humidity reaching the preset humidity threshold is greater than the first preset rate of change. This indicates that the internal humidity of a small number of water tanks exceeds the preset humidity threshold, and the internal humidity of the water tanks changes rapidly, and the judgment result points to water leakage. It can be seen that the judgment results are contradictory, and it is very likely that the temperature and humidity sensor is malfunctioning.

[0072] To obtain the dew point temperature of the environment where the drainage device is located, the above method further includes: detecting the ambient temperature and ambient humidity of the environment where the drainage device is located; and determining the dew point temperature based on the ambient temperature and ambient humidity.

[0073] Figure 5A structural block diagram of another pipeline leakage detection device provided in this application embodiment is shown below. Figure 5 As shown, the pipe leakage detection device includes a controller. The controller is connected to pipe wall temperature sensors 1~i (the aforementioned first temperature sensors) and water tank humidity sensors 1~i (the aforementioned first humidity sensors). The pipe wall temperature sensors are used to acquire the pipe wall temperature, and the water tank humidity sensors are used to acquire the humidity inside the water tank. The controller is also connected to an ambient temperature sensor (the aforementioned second temperature sensor) and an ambient humidity sensor (the aforementioned second humidity sensor) to calculate the dew point temperature of the environment where the drainage device is located based on the ambient temperature and humidity. The controller is also connected to a valve in the water tank to control the opening and closing of the water tank valve. The controller is also connected to an alarm device (which may be a display screen) to report leakage and display leakage location information.

[0074] Example 5 This embodiment provides a drainage device, addressing the issues raised above. Figure 1 As shown, the device includes: a drainage pipe 1; Multiple water collection tanks 2 are evenly distributed below the drainage pipe 1 to collect condensate or leaks from the drainage pipe 1. Multiple first humidity sensors 4 are installed one-to-one in multiple water receiving tanks 2 to detect the humidity of the water receiving tanks 2; Multiple first temperature sensors 3 are installed one-to-one on the drainage pipe 1 at positions corresponding to each water receiving tank 2, for detecting the pipe wall temperature of the drainage pipe 1.

[0075] Figure 6 A structural diagram of another drainage device provided in the embodiments of this application is shown below. Figure 6 As shown, the drainage device also includes: The second temperature sensor 5 is installed in the environment where the drainage device is located to detect the ambient temperature; the second humidity sensor 6 is installed in the environment where the drainage device is located to detect the ambient humidity.

[0076] The water receiving trough is a U-shaped trough and also includes: a drain outlet 7, which is located at the bottom of the water receiving trough; and a control valve 8, which is located on the drain outlet and is used to control whether the drain outlet 7 is opened.

[0077] The drainage device also includes a drainage trough 9, which is located below the water receiving trough 2 and is inclined at a preset angle.

[0078] Meanwhile, the U-shaped water tank installed under the pipe serves as a water storage device. During the humid season, when a large amount of condensation is likely to occur, the valve can be opened when the tank is full to allow the water in the tank to flow into the slightly sloped drainage ditch 9 in a timely manner, preventing interference with subsequent judgment.

[0079] Example 6 This embodiment provides an air conditioner, including the drainage device described in the above embodiment.

[0080] Figure 7 This is a schematic diagram of the structure of an air conditioner provided in an embodiment of this application, as shown below. Figure 7 As shown in the embodiment of this application, the air conditioner includes a processor 111, a communication interface 112, a memory 113, and a communication bus 114. The processor 111, communication interface 112, and memory 113 communicate with each other via the communication bus 114. Memory 113 is used to store computer programs; In one embodiment of this application, the processor 111, when executing the program stored in the memory 113, implements the pipe leakage detection method provided in any of the foregoing method embodiments.

[0081] Example 7 This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the pipe leakage detection method provided in any of the foregoing method embodiments.

[0082] The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0083] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented using software plus a general-purpose hardware platform, or of course, using hardware. Based on this understanding, the above technical solutions, in essence or the parts that contribute to the related technology, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0084] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0085] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. 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 this application. Therefore, this application 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 pipe leaks, applied to a drainage device, the drainage device comprising a drainage pipe and multiple water collection troughs, the multiple water collection troughs being evenly distributed at different positions below the drainage pipe, characterized in that, The method includes: Obtain the internal humidity of each water tank; When the internal humidity of at least one of the water receiving tanks reaches the preset humidity threshold, the dew point temperature of the environment where the drainage device is located and the pipe wall temperature of the drainage pipe at the location of the water receiving tank where the internal humidity reaches the preset humidity threshold are obtained. Based on the comparison between the pipe wall temperature and the dew point temperature, it is determined whether the drainage pipe is leaking.

2. The method according to claim 1, characterized in that, The step of determining whether the drainage pipe is leaking based on the comparison between the pipe wall temperature and the dew point temperature includes: Determine the range of the difference between the pipe wall temperature and the dew point temperature; If the difference is greater than the first threshold, it is determined that the drainage pipe is leaking; If the difference is greater than or equal to the second threshold and less than or equal to the first threshold, then the drainage pipe is judged to be leaking based on the proportion of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity of the water tank; wherein the first threshold is greater than zero and the second threshold is less than zero.

3. The method according to claim 2, characterized in that, The step of determining whether the drainage pipe is leaking based on the percentage of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity in the water tanks includes: Determine whether the percentage of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity of the water tanks meet a first preset condition; wherein, the first preset condition is that the percentage of water tanks whose internal humidity reaches the preset humidity threshold is lower than a first preset percentage, and the rate of change of internal humidity of the water tanks whose internal humidity reaches the preset humidity threshold is greater than a first preset rate of change. If the result is yes, then it is determined that the drainage pipe is leaking.

4. The method according to claim 2, characterized in that, The method of determining whether the drainage pipe is leaking based on the percentage of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity in the water tanks further includes: Determine whether the percentage of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity in the water tanks meet a second preset condition; wherein, the second preset condition is that the percentage of water tanks whose internal humidity reaches the preset humidity threshold is higher than a second preset percentage, and the rate of change of internal humidity in the water tanks whose internal humidity reaches the preset humidity threshold is less than a second preset rate of change; wherein, the second preset percentage is greater than a first preset percentage, and the second preset rate of change is less than a first preset rate of change. If the judgment result is yes, then it is determined that the drainage pipe is not leaking.

5. The method according to claim 2, characterized in that, Determining whether the drainage pipe is leaking based on the percentage of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity in the water tanks, further includes: Determine whether the percentage of water tanks whose internal humidity reaches the preset humidity threshold and the rate of change of internal humidity of the water tank simultaneously fail to meet the first preset condition and the second preset condition. If the judgment result is yes, a prompt will be made to request a manual judgment on whether the drainage pipe is leaking; Adjust the first preset percentage, the second preset percentage, the first preset change rate, and the second preset change rate based on the judgment results.

6. The method according to claim 2, characterized in that, After determining the range of the difference between the pipe wall temperature and the dew point temperature, the method further includes: If the difference is less than the second threshold, and the proportion of water tanks whose internal humidity reaches the preset humidity threshold is lower than the first preset proportion, and the rate of change of internal humidity of the water tanks whose internal humidity reaches the preset humidity threshold is greater than the first preset rate of change, then it is determined that the first humidity sensor for detecting the internal humidity of the water tank or the first temperature sensor for detecting the pipe wall temperature is faulty.

7. The method according to claim 2 or 3, characterized in that, The drainage device includes multiple first humidity sensors and multiple first temperature sensors. Each first humidity sensor is correspondingly disposed in each water receiving tank, and each first temperature sensor is correspondingly disposed on the drainage pipe at a position corresponding to each water receiving tank. Each first humidity sensor and each first temperature sensor has unique location information. After determining that the drainage pipe is leaking, the method further includes: The location of the leak in the drainage pipe is determined based on the location information of the first humidity sensor and / or the first temperature sensor.

8. The method according to claim 1, characterized in that, The process of obtaining the dew point temperature of the environment in which the drainage device is located includes: The ambient temperature and humidity of the environment in which the drainage device is located are detected; The dew point temperature is determined based on the ambient temperature and the ambient humidity.

9. A pipe leakage detection device, applied to a drainage system, the drainage system comprising a drainage pipe and multiple water receiving tanks, characterized in that, The pipeline leakage detection device includes: The first acquisition module is used to acquire the internal humidity of each water receiving tank; The second acquisition module is used to acquire the dew point temperature of the environment where the drainage device is located, and the pipe wall temperature of the drainage pipe corresponding to the water receiving tank where the internal humidity reaches the preset humidity threshold when the internal humidity of at least one of the water receiving tanks reaches the preset humidity threshold. The judgment module is used to determine whether the drainage pipe is leaking based on the comparison result of the pipe wall temperature and the dew point temperature.

10. A drainage device, employing the pipe leakage detection method according to any one of claims 1 to 8, characterized in that, The drainage device includes: Drainage pipes; Multiple water collection tanks are evenly distributed below the drainage pipe to collect condensate or leaking water from the drainage pipe. Multiple first humidity sensors are installed one-to-one in the multiple water receiving tanks to detect the internal humidity of the water receiving tanks; Multiple first temperature sensors are installed on the drainage pipe at positions corresponding to each water inlet, for detecting the pipe wall temperature.

11. The drainage device according to claim 10, characterized in that, The drainage device also includes: The second temperature sensor is installed in the environment where the drainage device is located to detect the ambient temperature; The second humidity sensor is installed in the environment where the drainage device is located to detect the ambient humidity; And / or, The water receiving tank also includes: A drain outlet is located at the bottom of the water receiving tank; A control valve is installed on the drain outlet to control whether the drain outlet is opened; A drainage trough is provided below the water receiving trough, and the drainage trough is inclined at a preset angle.

12. An air conditioner, characterized in that, Includes the drainage device as described in claim 10 or 11.

13. The air conditioner according to claim 10, characterized in that, The air conditioner further includes a processor and a memory, the processor being used to execute a detection program stored in the memory to implement the pipe leakage detection method according to any one of claims 1-8.

14. A storage medium, characterized in that, The storage medium stores one or more programs, which can be executed by one or more processors to implement the pipe leakage detection method according to any one of claims 1-8.

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