Water leakage position detection method and device, heat exchange type electric water heater and storage medium

Abstract

The embodiment of the application discloses a water leakage position detection method and device, a heat exchange type electric water heater and a storage medium, and relates to the technical field of water leakage detection. The method comprises the following steps: obtaining a water replenishing period of the heat exchange type electric water heater, judging whether the water replenishing period is less than a preset period threshold value; judging whether a water leakage detection signal sent by the water leakage detection device is received; if the water replenishing period is less than the preset period threshold value and the water leakage detection signal sent by the water leakage detection device is received, determining that the water leakage type of the heat exchange type electric water heater is heat exchange inner container water leakage. The technical scheme of the application can accurately identify the water leakage type of the heat exchange type electric water heater, so that the maintenance personnel can quickly determine the fault position, and the maintenance speed is improved. Meanwhile, when water leakage is detected, the equipment is turned off in time, and major property losses are avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water leakage detection, and in particular to a water leakage position detection method and device, a heat exchange type electric water heater and a storage medium. BACKGROUND

[0002] The heat exchange type electric water heater can be classified into pressure-bearing type and open type according to the type of water tank. The pressure-bearing type water tank is directly connected with tap water for water replenishment, and relies on the tap water pressure to keep the water tank full for a long time. The open type water tank needs to be manually or electromagnetically controlled for water replenishment. When the automatic water replenishment is performed by using an electromagnetic valve, a water level probe needs to be arranged in the water tank to control the start and stop of water replenishment according to the water level probe signal.

[0003] The heat exchange type electric water heater is a commonly used hot water supply device. During long-term use, there is a risk of water leakage. If the installation position cannot successfully drain water when water leakage occurs, serious property loss may be caused. For the heat exchange type electric water heater with automatic water replenishment, when water leakage occurs, the device always replenishes water, which may easily cause indoor soaking and cause significant property loss. In the prior art, there are various water leakage conditions for the heat exchange type electric water heater. When leakage occurs, it is not easy to identify the type of water leakage, which brings inconvenience to maintenance. SUMMARY

[0004] The embodiments of the present application provide a water leakage position detection method and device, a heat exchange type electric water heater and a storage medium, and aim to solve the problem that the type of water leakage of the heat exchange type electric water heater is not easy to identify in the prior art.

[0005] In a first aspect, the embodiments of the present application provide a water leakage position detection method. An inner surface of a bottom shell of a heat exchange type electric water heater is provided with a water leakage detection device. The method comprises the following steps.

[0006] Obtaining a water replenishment period of the heat exchange type electric water heater, and determining whether the water replenishment period is less than a preset period threshold value;

[0007] Determining whether a water leakage detection signal sent by the water leakage detection device is received;

[0008] If the water replenishment period is less than the preset period threshold value, and the water leakage detection signal sent by the water leakage detection device is received, it is determined that the type of water leakage of the heat exchange type electric water heater is heat exchange liner water leakage.

[0009] Further technical solutions are as follows.

[0010] If the water replenishment period is not less than the preset period threshold value, and the water leakage detection signal sent by the water leakage detection device is received, it is determined that the type of water leakage of the heat exchange type electric water heater is heat exchange pipeline external leakage.

[0011] Further, the method further comprises:

[0012] If the controllable valve of the water replenishing pipe of the heat exchange type electric water heater is in a closed state, and the detection signal of the high water level probe of the heat exchange type electric water heater is received, it is determined that the water leakage type of the heat exchange type electric water heater is heat exchange pipe line internal leakage.

[0013] Further, the method further comprises:

[0014] If the detection signal of the medium water level probe of the heat exchange type electric water heater is received, and the detection signal of the low water level probe of the heat exchange type electric water heater is not received, it is determined that the low water level probe of the heat exchange type electric water heater is malfunctioning.

[0015] Further, the method further comprises:

[0016] Based on the preset water replenishing capacity and the water replenishing flow of the heat exchange type electric water heater, a water replenishing estimated time is determined;

[0017] The actual water replenishing time of the heat exchange type electric water heater is obtained, if the actual water replenishing time is greater than the sum of the water replenishing estimated time and a preset time allowance, and the detection signal of the medium water level probe is not received, it is determined that the medium water level probe of the heat exchange type electric water heater is malfunctioning.

[0018] Further, the method further comprises:

[0019] After determining that the water leakage type of the heat exchange type electric water heater is heat exchange liner leakage, the controllable valve of the water replenishing pipe of the heat exchange type electric water heater is closed, the controllable valve of the heat exchange pipe line of the heat exchange type electric water heater is closed, and the heat accumulating heater of the heat exchange type electric water heater is closed;

[0020] After determining that the water leakage type of the heat exchange type electric water heater is heat exchange pipe line external leakage, the controllable valve of the water replenishing pipe of the heat exchange type electric water heater is closed, the controllable valve of the heat exchange pipe line of the heat exchange type electric water heater is closed, and the heat accumulating heater of the heat exchange type electric water heater is closed;

[0021] After determining that the water leakage type of the heat exchange type electric water heater is heat exchange pipe line internal leakage, the controllable valve of the water replenishing pipe of the heat exchange type electric water heater is closed, the controllable valve of the heat exchange pipe line of the heat exchange type electric water heater is closed, and the heat accumulating heater of the heat exchange type electric water heater is closed.

[0022] Further, the method further comprises:

[0023] After determining that the water leakage type of the heat exchange type electric water heater is heat exchange liner leakage, a first malfunction code corresponding to the heat exchange liner leakage is displayed on a preset display device.

[0024] displaying a second fault code corresponding to the heat exchange pipeline external leakage on the preset display device after determining that the leakage type of the heat exchange electric water heater is the heat exchange pipeline external leakage;

[0025] displaying a third fault code corresponding to the heat exchange pipeline internal leakage on the preset display device after determining that the leakage type of the heat exchange electric water heater is the heat exchange pipeline internal leakage;

[0026] displaying a fourth fault code corresponding to the malfunction of the low water level probe on the preset display device after determining that the low water level probe of the heat exchange electric water heater malfunctions;

[0027] displaying a fifth fault code corresponding to the malfunction of the medium water level probe on the preset display device after determining that the medium water level probe of the heat exchange electric water heater malfunctions.

[0028] Further, the method further comprises:

[0029] if the water replenishment period is not less than a preset period threshold, and no water leakage detection signal sent by the water leakage detection device is received, and no detection signal of the high water level probe of the heat exchange electric water heater is received, determining that the heat exchange electric water heater is in a normal state.

[0030] In a second aspect, the embodiments of the present application further provide a water leakage position detection device, which comprises units for executing the above method.

[0031] In a third aspect, the embodiments of the present application further provide a heat exchange electric water heater, which comprises a controller, the controller comprising a memory and a processor, the memory storing a computer program, and the processor executing the computer program to realize the above method.

[0032] In a fourth aspect, the embodiments of the present application further provide a computer readable storage medium, which stores a computer program, and the computer program is executable by a processor to realize the above method.

[0033] The embodiment of the present application provides a water leakage position detection method, device, heat exchange type electric water heater and storage medium. The method comprises the following steps: obtaining a water replenishment period of the heat exchange type electric water heater; determining whether the water replenishment period is less than a preset period threshold; determining whether a water leakage detection signal sent by the water leakage detection device is received; if the water replenishment period is less than the preset period threshold and the water leakage detection signal sent by the water leakage detection device is received, determining that the water leakage type of the heat exchange type electric water heater is heat exchange inner container water leakage. The technical scheme of the present application can accurately identify the water leakage type of the heat exchange type electric water heater, so that the maintenance personnel can quickly determine the fault position, and the maintenance speed is improved. Further, when the water leakage is detected, the equipment is turned off in time, and major property losses are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0035] Figure 1 A structure schematic diagram of the heat exchange type electric water heater is provided for the embodiment of the present application.

[0036] Figure 2 A structure schematic diagram of the bottom shell of the heat exchange type electric water heater is provided for the embodiment of the present application.

[0037] Figure 3 A flow schematic diagram of the water leakage position detection method is provided for the embodiment of the present application.

[0038] Figure 4 A schematic block diagram of the water leakage position detection device is provided for the embodiment of the present application.

[0039] Figure 5 A schematic block diagram of the controller of the heat exchange type electric water heater is provided for the embodiment of the present application.

[0040] REFERENCE NUMERALS

[0041] Housing 1, heat preservation layer 2, overflow pipe 3, heat exchange pipe 4, heat storage heater 5, bottom shell 6, water leakage detection device 7, first electromagnetic valve 8, second electromagnetic valve 9, water replenishment pipe 10, low water level probe 11, middle water level probe 12, high water level probe 13, inner container 14. DETAILED DESCRIPTION

[0042] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are some of the embodiments of the present application but not all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall within the scope of the present application.

[0043] It should be understood that the terms "comprise" and "include" as used in the specification and the appended claims indicate the presence of the described features, integers, steps, operations, elements, and / or components but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0044] It should also be understood that the terms used in the present application specification are only for the purpose of describing particular embodiments and are not intended to limit the present application. As used in the present application specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0045] It should be further understood that the term "and / or" as used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations thereof.

[0046] As used in the present application specification and the appended claims, the term "if" can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting" depending on the context. Similarly, the phrase "if it is determined" or "if [a described condition or event] is detected" can be interpreted to mean "upon determining" or "in response to determining" or "upon detecting [a described condition or event]" or "in response to detecting [a described condition or event]" depending on the context.

[0047] Please refer to Figures 1-2 The present application embodiment proposes a heat exchange type electric water heater. The heat exchange type electric water heater is specifically introduced as follows:

[0048] The heat exchange type electric water heater is composed of a controller, a water tank, a water inlet pipeline, a first electromagnetic valve 8 and a second electromagnetic valve 9 arranged on the water inlet pipeline, and a water leakage detection device 7 arranged on the inner surface of the bottom shell 6.

[0049] The water leakage detection device 7 can be specifically a water leakage detection plate, for example, an electrode type or a PCB copper-clad plate, which is attached to the lowest part of the inner surface of the bottom shell 6 of the heat exchange type electric water heater to provide a water leakage detection signal to the controller when there is accumulated water in the bottom shell 6. In order to improve the accuracy of detection, multiple water leakage detection devices 7 can be arranged at different parts of the bottom shell 6.

[0050] The water tank is composed of the inner container 14, the outer shell 1 and the heat preservation layer 2; the inner container 14 is used for storing the heat exchange medium; the heat preservation layer 2 is used for heat preservation of the medium heated by the inner container 14.

[0051] The inner container 14 is internally provided with the heat exchange pipe 4, the overflow pipe 3, the heat storage heater 5, the water supplement pipe 10, the high water level probe 13, the medium water level probe 12 and the low water level probe 11. The heat exchange pipe 4 is located in the inner container 14 and is used for heat exchange between tap water and the heat exchange medium in the inner container 14. The overflow pipe 3 is used for overflow of the excessive water when water supplement, the inner container 14 exhausts or the water level probe or the electromagnetic valve fails, the depth of the overflow pipe 3 into the inner container 14 is higher than the high water level probe 13, so that the detection function of the high water level probe 13 is avoided. The heat storage heater 5 is arranged at the bottom of the inner container 14 and is used for heating the heat exchange medium in the inner container 14, so that the temperature of the heat exchange medium is more uniform, thereby the heat exchange is more sufficient. The water supplement pipe 10 is used for supplementing the heat exchange medium in the inner container 14, the depth of the pipe into the inner container 14 needs to be higher than the heat exchange pipe 4, so that the heat exchange medium is avoided from flowing back, the heat exchange pipe 4 and the heat storage heater 5 are avoided from being exposed, thereby the heat exchange work cannot be completed or the heater is damaged due to dry burning. The high water level probe 13, the medium water level probe 12 and the low water level probe 11 are arranged at the upper portion of the inner container 14 and provide the heat exchange pipe 4 internal leakage signal, the water supplement stop signal and the water supplement start signal respectively.

[0052] The first electromagnetic valve 8 is arranged on the water inlet pipeline of the heat exchange pipe 4 and is used for controlling the water circuit on-off of the heat exchange pipe 4.

[0053] The second electromagnetic valve 9 is arranged on the water inlet pipeline of the water supplement pipe 10 and is used for controlling the heat exchange medium supplement of the inner container 14.

[0054] The first electromagnetic valve 8 and the second electromagnetic valve 9 can be independent, can be two components, and can be integrated with the water mixing valve.

[0055] The bottom shell 6 is in a box shape and is located at the bottom of the inner container 14 and is connected with the outer shell 1.

[0056] Please refer to Figure 3 , Figure 3 It is a flowchart of a water leakage position detection method provided by the embodiment of the application. The method is applied to the heat exchange type electric water heater provided by the above embodiment, the inner surface of the bottom shell of the heat exchange type electric water heater is provided with a water leakage detection device, as shown in Figure 3 , and the method comprises the following steps.

[0057] S1, obtaining the water supplement period of the heat exchange type electric water heater, judging whether the water supplement period is less than a preset period threshold.

[0058] In a specific implementation, the water replenishment period of the heat exchange type electric water heater is a period in which the heat exchange type electric water heater replenishes the heat exchange medium. The water replenishment period of the heat exchange type electric water heater can be obtained by calculating the time interval between two consecutive times of replenishing the heat exchange medium. The period threshold value can be set by a person skilled in the art, and the person skilled in the art is not specifically limited. Understandably, the period threshold value is used as a reference according to the inner container capacity and test data, and is preset in the controller program in advance for the basis for judging whether the inner container leaks. The period threshold value is preset according to the test result, and the period threshold value is much smaller than the actual liquid replenishment period. For example, the actual liquid replenishment period is 30 days, and the period threshold value can be set to 10 days.

[0059] In the embodiment of the present application, it is first judged whether the water replenishment period of the heat exchange type electric water heater is less than a preset period threshold value.

[0060] S2, whether the water leakage detection signal sent by the water leakage detection device is received is judged.

[0061] In a specific implementation, the water leakage detection device can be a water leakage detection plate, which is attached to the lowest part of the inner surface of the bottom shell of the heat exchange type electric water heater, and provides a water leakage detection signal to the controller when the bottom shell has accumulated water. In order to improve the accuracy of detection, multiple water leakage detection devices can be provided at different parts of the bottom shell.

[0062] In the embodiment of the present application, whether the water leakage detection signal sent by the water leakage detection device is received is judged. When the water leakage detection device has multiple water leakage detection devices, whether the water leakage detection signal sent by any one of the water leakage detection devices is received is judged.

[0063] S3, if the water replenishment period is less than the preset period threshold value, and the water leakage detection signal sent by the water leakage detection device is received, it is determined that the water leakage type of the heat exchange type electric water heater is heat exchange inner container water leakage.

[0064] In a specific implementation, if the water replenishment period is less than the preset period threshold value, and the water leakage detection signal sent by the water leakage detection device is received, it is determined that the water leakage type of the heat exchange type electric water heater is heat exchange inner container water leakage.

[0065] In the embodiment of the present application, if the water replenishment period is less than the preset period threshold value, it indicates that the heat exchange medium in the inner container is lost too quickly. Further, if the water leakage detection signal sent by the water leakage detection device is received at this time, it indicates that the water detected by the water leakage detection device is leaked from the inner container. Therefore, it is determined that the water leakage type of the heat exchange type electric water heater is heat exchange inner container water leakage.

[0066] Further, in the embodiment of the present application, after determining that the water leakage type of the heat exchange type electric water heater is heat exchange inner container water leakage, the controllable valve of the water replenishing pipe of the heat exchange type electric water heater is closed, the controllable valve of the heat exchange pipe of the heat exchange type electric water heater is closed, and the heat accumulating heater of the heat exchange type electric water heater is closed, so that water leakage for a long time can be effectively avoided, and safety is improved.

[0067] Specifically, the controllable valve of the heat exchange pipe of the heat exchange type electric water heater is a first electromagnetic valve, and the controllable valve of the water replenishing pipe of the heat exchange type electric water heater is a second electromagnetic valve.

[0068] Further, in the embodiment of the present application, after determining that the water leakage type of the heat exchange type electric water heater is heat exchange inner container water leakage, a first fault code corresponding to the heat exchange inner container water leakage is displayed on a preset display device, and an alarm information is sent.

[0069] Specifically, the display device can be specifically configured on the heat exchange type electric water heater. The first fault code can be set by a person skilled in the art, and the present application does not specifically limit it. The first fault code can enable a maintenance personnel to quickly determine that the fault type is heat exchange inner container water leakage. The alarm information can be specifically a voice alarm.

[0070] S4, if the water replenishing period is not less than a preset period threshold, and a water leakage detection signal sent by the water leakage detection device is received, it is determined that the water leakage type of the heat exchange type electric water heater is heat exchange pipe external leakage.

[0071] In a specific implementation, if the water replenishing period is not less than a preset period threshold, and a water leakage detection signal sent by the water leakage detection device is received, it is determined that the water leakage type of the heat exchange type electric water heater is heat exchange pipe external leakage.

[0072] In the embodiment of the present application, if the water replenishing period is not less than a preset period threshold, it indicates that the heat exchange medium in the inner container does not exist in the case of too fast loss. Further, if the water leakage detection signal sent by the water leakage detection device is received at this time, it indicates that the water detected by the water leakage detection device is caused by the heat exchange pipe leakage outside the water heater. Therefore, it is determined that the water leakage type of the heat exchange type electric water heater is heat exchange pipe external leakage.

[0073] Further, after determining that the water leakage type of the heat exchange type electric water heater is heat exchange pipe external leakage, the controllable valve of the water replenishing pipe of the heat exchange type electric water heater is closed, the controllable valve of the heat exchange pipe of the heat exchange type electric water heater is closed, and the heat accumulating heater of the heat exchange type electric water heater is closed, so that water leakage for a long time can be effectively avoided, and safety is improved.

[0074] Specifically, the controllable valve of the heat exchange pipeline of the heat exchange type electric water heater is a first electromagnetic valve, and the controllable valve of the water replenishing pipeline of the heat exchange type electric water heater is a second electromagnetic valve.

[0075] Further, in the embodiment of the present application, after determining that the water leakage type of the heat exchange type electric water heater is the heat exchange pipeline external leakage, a second fault code corresponding to the heat exchange pipeline external leakage is displayed on a preset display device, and an alarm information is sent.

[0076] Specifically, the display device can be specifically configured on the heat exchange type electric water heater. The second fault code can be set by those skilled in the art, and the present application does not specifically limit it. The second fault code can enable the maintenance personnel to quickly determine that the fault type is the heat exchange pipeline external leakage. The alarm information can be specifically a voice alarm.

[0077] S5, if the water replenishing period is not less than a preset period threshold, and the water leakage detection signal sent by the water leakage detection device is not received, and the detection signal of the high water level probe of the heat exchange type electric water heater is not received, it is determined that the heat exchange type electric water heater is in a normal state.

[0078] In a specific implementation, if the water replenishing period is not less than a preset period threshold, and the water leakage detection signal sent by the water leakage detection device is not received, and the detection signal of the high water level probe of the heat exchange type electric water heater is not received, it is determined that the heat exchange type electric water heater is in a normal state.

[0079] In the embodiment of the present application, if the water replenishing period is not less than a preset period threshold, it indicates that there is no frequent water replenishing, at the same time, the water leakage detection signal sent by the water leakage detection device is not received, which indicates that there is no water leakage outside the heat exchange type electric water heater, and the detection signal of the high water level probe of the heat exchange type electric water heater is not received, which indicates that there is no water leakage inside the heat exchange type electric water heater. At this time, it is determined that the heat exchange type electric water heater is in a normal state.

[0080] Further, in some embodiments, the water leakage position detection method provided by the present application further comprises: if the controllable valve of the water replenishing pipeline of the heat exchange type electric water heater is in a closed state, and the detection signal of the high water level probe of the heat exchange type electric water heater is received, it is determined that the water leakage type of the heat exchange type electric water heater is the heat exchange pipeline internal leakage.

[0081] In the embodiment, the controllable valve of the water replenishing pipeline of the heat exchange type electric water heater is a second electromagnetic valve.

[0082] If the controllable valve of the water replenishing pipe of the heat exchange type electric water heater is in a closed state, it indicates that water replenishment to the inner container is suspended at this time, and if a detection signal of the high water level probe of the heat exchange type electric water heater is received at this time, it indicates that the heat exchange pipeline leaks in the inner container, causing the water level to rise, and at this time, it is determined that the water leakage type of the heat exchange type electric water heater is heat exchange pipeline internal leakage.

[0083] Further, after determining that the water leakage type of the heat exchange type electric water heater is heat exchange pipeline internal leakage, the controllable valve of the water replenishing pipe of the heat exchange type electric water heater is closed, the controllable valve of the heat exchange pipeline of the heat exchange type electric water heater is closed, and the heat storage heater of the heat exchange type electric water heater is closed, thereby effectively avoiding long-term water leakage and improving safety.

[0084] Specifically, the controllable valve of the heat exchange pipeline of the heat exchange type electric water heater is a first electromagnetic valve, and the controllable valve of the water replenishing pipe of the heat exchange type electric water heater is a second electromagnetic valve.

[0085] Further, after determining that the water leakage type of the heat exchange type electric water heater is heat exchange pipeline internal leakage, a third fault code corresponding to the heat exchange pipeline internal leakage is displayed on a preset display device, and an alarm information is issued.

[0086] Specifically, the display device can be specifically configured on the heat exchange type electric water heater. The third fault code can be set by those skilled in the art, and the present application does not specifically limit it. The third fault code can enable the maintenance personnel to quickly determine that the fault type is heat exchange pipeline internal leakage. The alarm information can be specifically a voice alarm.

[0087] Further, in some embodiments, the water leakage position detection method further includes: if a detection signal of the middle water level probe of the heat exchange type electric water heater is received, and a detection signal of the low water level probe of the heat exchange type electric water heater is not received, it is determined that the low water level probe of the heat exchange type electric water heater is malfunctioning.

[0088] In specific implementation, if a detection signal of the middle water level probe of the heat exchange type electric water heater is received, it indicates that the water level has reached the position of the middle water level probe at this time, and if a detection signal of the low water level probe of the heat exchange type electric water heater is not received at this time, it indicates that the low water level probe is malfunctioning.

[0089] Further, after determining that the low water level probe of the heat exchange type electric water heater is malfunctioning, a fourth fault code corresponding to the malfunctioning of the low water level probe is displayed on a preset display device, and an alarm information is issued.

[0090] Specifically, the display device can be specifically configured on the heat exchange type electric water heater. The fourth fault code can be set by those skilled in the art, and the present application is not specifically limited. Through the fourth fault code, the maintenance personnel can quickly determine that the fault type is that the low water level probe fails. The alarm information can be specifically a voice alarm.

[0091] Further, in some embodiments, the water leakage position detection method provided by the present application further comprises: determining a water replenishment estimated time based on a preset water replenishment capacity and a water replenishment flow rate of the heat exchange type electric water heater; acquiring an actual water replenishment time of the heat exchange type electric water heater; and if the actual water replenishment time is greater than a sum of the water replenishment estimated time and a preset time margin, and a detection signal of the middle water level probe is not received, it is determined that the middle water level probe of the heat exchange type electric water heater fails.

[0092] In specific implementation, the water replenishment capacity is preset by those skilled in the art. The water replenishment capacity is the capacity of water required for the water level from the low water level probe to the middle water level probe in the heat exchange type electric water heater. The water replenishment flow rate can be measured by a flow rate sensor. Based on the water replenishment capacity and the water replenishment flow rate, the water replenishment estimated time can be calculated.

[0093] The actual water replenishment time of the heat exchange type electric water heater is measured, and if the actual water replenishment time is greater than a sum of the water replenishment estimated time and a preset time margin, and a detection signal of the middle water level probe is not received, it is indicated that the middle water level probe fails. The time margin can be set by those skilled in the art, and the present application is not specifically limited, for example, the time margin can be set to 10% of the water replenishment estimated time.

[0094] Further, after it is determined that the middle water level probe of the heat exchange type electric water heater fails, a fifth fault code corresponding to the failure of the middle water level probe is displayed on a preset display device, and an alarm information is issued.

[0095] Specifically, the display device can be specifically configured on the heat exchange type electric water heater. The fifth fault code can be set by those skilled in the art, and the present application is not specifically limited. Through the fifth fault code, the maintenance personnel can quickly determine that the fault type is that the middle water level probe fails. The alarm information can be specifically a voice alarm.

[0096] The technical effects of the present application include:

[0097] 1. The present application can accurately determine whether the inner container and the heat exchange pipeline leak, and can automatically close the waterway, issue a voice alarm, display a fault code, shut down the equipment, and avoid causing significant property loss.

[0098] 2. The present application can accurately determine the water leakage position and the water level probe failure, and display the corresponding fault code, which is convenient for quick maintenance.

[0099] ReferenceFigure 4 , Figure 4 is a schematic block diagram of a water leakage position detection device 20 provided by an embodiment of the present application. Corresponding to the above water leakage position detection method, the present application also provides a water leakage position detection device 20. The water leakage position detection device 20 includes units for executing the above water leakage position detection method, and the water leakage position detection device 20 can be configured in a controller of a heat exchange type electric water heater. Specifically, the water leakage position detection device 20 includes:

[0100] a first judgment unit 21 configured to acquire a water replenishment period of the heat exchange type electric water heater, and judge whether the water replenishment period is less than a preset period threshold;

[0101] a second judgment unit 22 configured to judge whether a water leakage detection signal sent by the water leakage detection device is received;

[0102] a first determination unit 23 configured to determine that a water leakage type of the heat exchange type electric water heater is heat exchange inner container water leakage, if the water replenishment period is less than the preset period threshold, and the water leakage detection signal sent by the water leakage detection device is received.

[0103] In an embodiment, the water leakage position detection device 20 further includes:

[0104] a second determination unit configured to determine that the water leakage type of the heat exchange type electric water heater is heat exchange pipeline external leakage, if the water replenishment period is not less than the preset period threshold, and the water leakage detection signal sent by the water leakage detection device is received.

[0105] In an embodiment, the water leakage position detection device 20 further includes:

[0106] a third determination unit configured to determine that a low water level probe of the heat exchange type electric water heater is malfunctioning, if a detection signal of a middle water level probe of the heat exchange type electric water heater is received, and a detection signal of the low water level probe of the heat exchange type electric water heater is not received.

[0107] In an embodiment, the water leakage position detection device 20 further includes:

[0108] a calculation unit configured to determine a water replenishment estimated time based on a preset water replenishment capacity and a water replenishment flow rate of the heat exchange type electric water heater;

[0109] a fourth determination unit configured to acquire an actual water replenishment time of the heat exchange type electric water heater, and determine that a middle water level probe of the heat exchange type electric water heater is malfunctioning, if the actual water replenishment time is greater than a sum of the water replenishment estimated time and a preset time margin, and the detection signal of the middle water level probe is not received.

[0110] In an embodiment, the water leakage position detection device 20 further includes:

[0111] a fifth determining unit configured to determine that the water leakage type of the heat exchange type electric water heater is an inner leakage of the heat exchange tank if the controllable valve of the water supply pipe of the heat exchange type electric water heater is in a closed state and the detection signal of the high water level probe of the heat exchange type electric water heater is received.

[0112] In an embodiment, the water leakage position detection device 20 further comprises a closing unit configured to:

[0113] close the controllable valve of the water supply pipe of the heat exchange type electric water heater, close the controllable valve of the heat exchange pipeline of the heat exchange type electric water heater, and close the heat accumulating heater of the heat exchange type electric water heater after determining that the water leakage type of the heat exchange type electric water heater is an inner leakage of the heat exchange pipeline.

[0114] close the controllable valve of the water supply pipe of the heat exchange type electric water heater, close the controllable valve of the heat exchange pipeline of the heat exchange type electric water heater, and close the heat accumulating heater of the heat exchange type electric water heater after determining that the water leakage type of the heat exchange type electric water heater is an outer leakage of the heat exchange pipeline.

[0115] close the controllable valve of the water supply pipe of the heat exchange type electric water heater, close the controllable valve of the heat exchange pipeline of the heat exchange type electric water heater, and close the heat accumulating heater of the heat exchange type electric water heater after determining that the water leakage type of the heat exchange type electric water heater is an inner leakage of the heat exchange pipeline.

[0116] In an embodiment, the water leakage position detection device 20 further comprises a prompting unit configured to:

[0117] display a first fault code corresponding to the inner leakage of the heat exchange tank on a preset display device after determining that the water leakage type of the heat exchange type electric water heater is an inner leakage of the heat exchange tank.

[0118] display a second fault code corresponding to the outer leakage of the heat exchange pipeline on a preset display device after determining that the water leakage type of the heat exchange type electric water heater is an outer leakage of the heat exchange pipeline.

[0119] display a third fault code corresponding to the inner leakage of the heat exchange pipeline on a preset display device after determining that the water leakage type of the heat exchange type electric water heater is an inner leakage of the heat exchange pipeline.

[0120] display a fourth fault code corresponding to the failure of the low water level probe on a preset display device after determining that the low water level probe of the heat exchange type electric water heater fails.

[0121] display a fifth fault code corresponding to the failure of the medium water level probe on a preset display device after determining that the medium water level probe of the heat exchange type electric water heater fails.

[0122] In an embodiment, the water leakage position detection device 20 further comprises:

[0123] A sixth determination unit is configured to determine that the heat exchange type electric water heater is in a normal state if the water replenishing period is not less than a preset period threshold, and no water leakage detection signal sent by the water leakage detection device is received, and no detection signal of the high water level probe of the heat exchange type electric water heater is received.

[0124] It should be noted that the specific implementation process of the water leakage position detection device 20 and each unit can be clearly understood by those skilled in the art, and can refer to the corresponding description in the foregoing method embodiments. For the convenience and brevity of description, it will not be repeated here.

[0125] The water leakage position detection device 20 can be implemented in the form of a computer program, which can run on a controller as shown in the figure. The controller is a controller of the heat exchange type electric water heater. Figure 5

[0126] Please refer to Figure 5 , Figure 5 is a schematic block diagram of a controller provided by an embodiment of the present application. The controller 500 can be a terminal or a server, wherein the terminal can be a smart phone, a tablet computer, a notebook computer, a desktop computer, a personal digital assistant, a wearable device, and an electronic device with a communication function. The server can be a stand-alone server or a server cluster composed of multiple servers.

[0127] The controller 500 includes a processor 502, a memory, and a network interface 505 connected through a system bus 501, wherein the memory can include a non-volatile storage medium 503 and an internal memory 504.

[0128] The non-volatile storage medium 503 can store an operating system 5031 and a computer program 5032. The computer program 5032, when executed, can cause the processor 502 to perform a water leakage position detection method.

[0129] The processor 502 is configured to provide computing and control capabilities to support the operation of the entire controller 500.

[0130] The internal memory 504 provides an environment for the execution of the computer program 5032 in the non-volatile storage medium 503. The computer program 5032, when executed by the processor 502, can cause the processor 502 to perform a water leakage position detection method.

[0131] ​The network interface 505 is configured to perform network communication with other devices. Those skilled in the art can understand that the above structure is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the controller 500 to which the scheme of the present application is applied. Specifically, the controller 500 can include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0132] The processor 502 is configured to run the computer program 5032 stored in the memory to implement the steps of the water leakage position detection method provided in any of the above method embodiments.

[0133] It should be understood that, in the embodiments of the present application, the processor 502 can be a central processing unit (CPU), and the processor 502 can also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0134] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by a computer program instructing relevant hardware. The computer program can be stored in a storage medium, which is a computer-readable storage medium. The computer program is executed by at least one processor in the computer system to implement the process steps of the above-mentioned method embodiments.

[0135] Therefore, the present application also provides a storage medium. The storage medium can be a computer-readable storage medium. The storage medium stores a computer program. The computer program is executed by a processor to make the processor perform the steps of the water leakage position detection method provided in any of the above method embodiments.

[0136] The storage medium is an entity, non-transient storage medium, for example, a U disk, a mobile hard disk, a read-only memory (ROM), a magnetic disk or an optical disk, etc. Various entity storage media that can store program codes. The computer-readable storage medium can be non-volatile or volatile.

[0137] Those skilled in the art can understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in electronic hardware, computer software or a combination of both. In order to clearly illustrate the interchangeability of hardware and software, the components and steps of each example have been described in general terms in the above description. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0138] In several embodiments provided by the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of each unit is only a logical function division, and actual implementation can have another division manner. For example, a plurality of units or components can be combined or integrated into another system, or some features can be omitted or not executed.

[0139] The steps in the method embodiments of the present application can be adjusted, combined and deleted in sequence according to actual needs. The units in the device embodiments of the present application can be combined, divided and deleted according to actual needs. In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit.

[0140] The integrated unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art, or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing a controller to execute all or part of the steps of the method described in each embodiment of the present application.

[0141] In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0142] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, these modifications and variations of the present application are intended to be included within the scope of the claims of the present application and their equivalents.

[0143] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements shall be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A water leakage position detection method characterized by comprising: The inner surface of the bottom shell of the heat exchange type electric water heater is provided with a water leakage detection device, and the method comprises: obtaining a water replenishment period of the heat exchange type electric water heater, and judging whether the water replenishment period is less than a preset period threshold value; judging whether a water leakage detection signal sent by the water leakage detection device is received; if the water replenishment period is less than the preset period threshold value and the water leakage detection signal sent by the water leakage detection device is received, determining that the water leakage type of the heat exchange type electric water heater is heat exchange inner container water leakage; if the water replenishment period is not less than the preset period threshold value and the water leakage detection signal sent by the water leakage detection device is received, determining that the water leakage type of the heat exchange type electric water heater is heat exchange pipeline external leakage; if the controllable valve of the water replenishment pipe of the heat exchange type electric water heater is in a closed state and the detection signal of the high water level probe of the heat exchange type electric water heater is received, determining that the water leakage type of the heat exchange type electric water heater is heat exchange pipeline internal leakage; after determining that the water leakage type of the heat exchange type electric water heater is heat exchange inner container water leakage, closing the controllable valve of the water replenishment pipe of the heat exchange type electric water heater, closing the controllable valve of the heat exchange pipeline of the heat exchange type electric water heater, and closing the heat storage heater of the heat exchange type electric water heater; after determining that the water leakage type of the heat exchange type electric water heater is heat exchange pipeline external leakage, closing the controllable valve of the water replenishment pipe of the heat exchange type electric water heater, closing the controllable valve of the heat exchange pipeline of the heat exchange type electric water heater, and closing the heat storage heater of the heat exchange type electric water heater; after determining that the water leakage type of the heat exchange type electric water heater is heat exchange pipeline internal leakage, closing the controllable valve of the water replenishment pipe of the heat exchange type electric water heater, closing the controllable valve of the heat exchange pipeline of the heat exchange type electric water heater, and closing the heat storage heater of the heat exchange type electric water heater.

2. The water leakage position detection method according to claim 1, characterized by, The method further comprises: if the detection signal of the medium water level probe of the heat exchange type electric water heater is received and the detection signal of the low water level probe of the heat exchange type electric water heater is not received, determining that the low water level probe of the heat exchange type electric water heater is malfunctioning.

3. The water leakage position detection method according to claim 2, characterized by, The method further comprises: determining a water replenishment estimated time based on a preset water replenishment capacity and a water replenishment flow rate of the heat exchange type electric water heater; obtaining an actual water replenishment time of the heat exchange type electric water heater, if the actual water replenishment time is greater than the sum of the water replenishment estimated time and a preset time allowance, and the detection signal of the medium water level probe is not received, determining that the medium water level probe of the heat exchange type electric water heater is malfunctioning.

4. The water leakage position detection method according to claim 3, characterized by, The method further comprises: after determining that the water leakage type of the heat exchange type electric water heater is heat exchange inner container water leakage, displaying a first fault code corresponding to the heat exchange inner container water leakage on a preset display device; after determining that the water leakage type of the heat exchange type electric water heater is heat exchange pipeline external leakage, displaying a second fault code corresponding to the heat exchange pipeline external leakage on the preset display device; after determining that the water leakage type of the heat exchange type electric water heater is heat exchange pipeline internal leakage, displaying a third fault code corresponding to the heat exchange pipeline internal leakage on the preset display device; displaying a fourth fault code corresponding to the malfunction of the low water level probe on the preset display device after determining that the low water level probe of the heat exchange type electric water heater malfunctions; displaying a fifth fault code corresponding to the malfunction of the medium water level probe on the preset display device after determining that the medium water level probe of the heat exchange type electric water heater malfunctions.

5. The water leakage position detection method according to claim 1, characterized by, The method further comprises: if the water replenishing period is not less than a preset period threshold, and no water leakage detection signal sent by the water leakage detection device is received, and no detection signal of the high water level probe of the heat exchange type electric water heater is received, determining that the heat exchange type electric water heater is in a normal state.

6. A water leakage position detecting apparatus characterized by comprising: The device comprises a unit for executing the method according to any one of claims 1-5.

7. A heat exchange type electric water heater, characterized by comprising: The heat exchange type electric water heater comprises a controller, the controller comprises a memory and a processor, the memory stores a computer program, and the processor executes the computer program to implement the method according to any one of claims 1-5.

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