Control method, system, medium, device and program product for water purifier

Abstract

The present disclosure provides a control method, system, medium, device and program product of a water purifier. The control method comprises: acquiring a standing time of a hot water outlet of the water purifier; in response to the standing time being greater than a preset standing time, acquiring a water outlet temperature of the hot water outlet; and in response to the water outlet temperature being lower than a preset sterilization temperature, controlling the first heat exchange unit to heat and sterilize stagnant water in the hot water outlet pipeline. By monitoring the standing time and the water outlet temperature of the hot water outlet of the water purifier, the stagnant water in the hot water outlet pipeline is heated and sterilized in a timely manner without the need to increase additional sterilization devices, thereby ensuring that the total number of bacteria in the water outlet meets the health and safety requirements.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of water purifiers, and in particular to a control method, system, medium, device and program product of a water purifier. BACKGROUND

[0002] With the gradual popularization of water purifiers, people's experience requirements for the use of water purifiers are also getting higher and higher, especially the requirements for children using water purifiers are also getting higher and higher, not only to ensure that the water quality of the water purifier system meets the safety requirements, but also to ensure that children are not scalded for machines with heating function.

[0003] In the industry, water purifiers with coil heat exchange mode are commonly used to meet the demand for warm water outlet, but if the water purifier is not used for a certain period of time, the temperature of the heating unit and the heat exchange unit in the water purifier will decrease, and the stagnant water in the hot water outlet pipeline of the water purifier can easily cause bacteria to exceed the standard, resulting in hidden dangers of drinking water safety. SUMMARY

[0004] The technical problem to be solved by the present disclosure is to overcome the defects of the prior art that the stagnant water in the hot water outlet pipeline of the water purifier causes bacteria to exceed the standard, resulting in hidden dangers of drinking water safety, and to provide a control method, system, medium, device and program product of a water purifier.

[0005] The present disclosure solves the above technical problems by the following technical solutions:

[0006] In a first aspect, a control method of a water purifier is provided, the water purifier being provided with a first heat exchange unit on a hot water outlet pipeline, and the control method comprising:

[0007] obtaining a standing time of a hot water outlet of the water purifier;

[0008] in response to the standing time being greater than a preset standing time, obtaining a water temperature of the hot water outlet;

[0009] in response to the water temperature being lower than a preset sterilization temperature, controlling the first heat exchange unit to heat and sterilize stagnant water in the hot water outlet pipeline.

[0010] Preferably, the step of controlling the first heat exchange unit to sterilize the stagnant water in the hot water outlet pipeline comprises:

[0011] heating the stagnant water in the hot water outlet pipeline to a preset sterilization temperature range, and maintaining the water temperature in the preset sterilization temperature range;

[0012] in response to a duration of maintaining the water temperature in the preset sterilization temperature range being greater than a preset sterilization time, stopping heating.

[0013] Preferably, the control method further comprises:

[0014] in response to the outlet water temperature being higher than a preset outlet water temperature, controlling the first heat exchange unit to exchange heat with the hot water outlet pipeline to reduce the outlet water temperature to the preset outlet water temperature.

[0015] Preferably, a second heat exchange unit is arranged on the water inlet pipeline of the water purifier, the first heat exchange unit and the second heat exchange unit are connected, and the control method further comprises:

[0016] in response to the first heat exchange unit being in a working state, acquiring the water inlet temperature of the water inlet;

[0017] in response to the water inlet temperature being lower than a preset water inlet temperature, connecting the first heat exchange unit and the second heat exchange unit to heat the water inlet pipeline with the heat of the hot water outlet pipeline.

[0018] Preferably, the first heat exchange unit comprises a vortex air supply assembly and a first heat exchange assembly, the first heat exchange assembly exchanges heat with the hot water outlet pipeline, and the step of controlling the first heat exchange unit to exchange heat with the hot water outlet pipeline comprises:

[0019] acquiring a temperature difference between the outlet water temperature and the preset outlet water temperature;

[0020] controlling the vortex air supply assembly to supply cold air to the first heat exchange assembly, the power of the vortex air supply assembly being proportional to the temperature difference.

[0021] Preferably, the water purifier comprises a filtration unit, and the control method further comprises:

[0022] in response to the standing time being greater than a preset standing time, flushing the filtration unit.

[0023] In a second aspect, a control system of a water purifier is provided, a first heat exchange unit is arranged on a hot water outlet pipeline of the water purifier, and the control system comprises a standing time acquisition module, an outlet water temperature acquisition module and a sterilization module.

[0024] The standing time acquisition module is configured to acquire a standing time of a hot water outlet of the water purifier.

[0025] The outlet water temperature acquisition module is configured to, in response to the standing time being greater than a preset standing time, acquire an outlet water temperature of the hot water outlet.

[0026] The sterilization module is configured to, in response to the outlet water temperature being lower than a preset sterilization temperature, control the first heat exchange unit to heat and sterilize stagnant water in the hot water outlet pipeline.

[0027] In a third aspect, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and used for running on the processor, and the processor implements the control method of the water purifier according to the first aspect when the computer program is executed.

[0028] In a fourth aspect, a computer readable storage medium is provided, and the computer readable storage medium stores a computer program, and the computer program is executed by a processor to implement the control method of the water purifier according to the first aspect.

[0029] In a fifth aspect, a computer program product is provided, comprising a computer program, and the computer program is executed by a processor to implement the control method of the water purifier according to the first aspect.

[0030] On the basis of common knowledge in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, to obtain each preferred example of the present disclosure.

[0031] The positive progress effect of the present disclosure is that by monitoring the standing time and water temperature of the hot water outlet of the water purifier, the stagnant water in the hot water outlet pipeline is heated and sterilized in time without the need to increase additional sterilization devices, so as to ensure that the water meets the health and safety requirements. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 A flow chart of a control method of a water purifier is provided for an exemplary embodiment of the present disclosure.

[0033] Figure 2 A flow chart of step S103 in a control method of a water purifier is provided for an exemplary embodiment of the present disclosure.

[0034] Figure 3 A structural schematic diagram of a water purifier in a control method of a water purifier is provided for an exemplary embodiment of the present disclosure.

[0035] Figure 4 A module schematic diagram of a control system of a water purifier is provided for an exemplary embodiment of the present disclosure.

[0036] Figure 5 A hardware structure schematic diagram of an electronic device is provided for an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] The present disclosure will be further described below by way of examples, but the present disclosure is not limited in the scope of the examples.

[0038] The prefix words such as "first", "second" in the embodiments of the present disclosure are only used to distinguish different description objects, and have no limiting effect on the position, order, priority, quantity or content of the described objects. The use of ordinal words such as "first" in the embodiments of the present disclosure does not limit the described objects, and the description of the described objects should be referred to the description in the context of claims or embodiments, and should not be considered as redundant limitation because of the use of such prefix words. In addition, in the description of the embodiments, unless otherwise stated, the meaning of "multiple" is two or more than two.

[0039] Embodiment 1

[0040] Figure 1 A flow chart of a control method of a water purifier is provided for an exemplary embodiment of the present disclosure. The control method of the water purifier provided in the embodiment includes:

[0041] S101, obtaining the standing time of the hot water outlet of the water purifier;

[0042] S102, in response to the standing time being greater than the preset standing time, obtaining the outlet water temperature of the hot water outlet;

[0043] S103, in response to the outlet water temperature being lower than the preset sterilization temperature, controlling the first heat exchange unit to heat and sterilize the stagnant water in the hot water outlet pipeline.

[0044] In step S101, the standing time of the hot water outlet represents the standing time of the stagnant water in the hot water outlet pipeline, which can be determined by the opening state of the hot water outlet valve, the outlet flow of the hot water outlet and / or the working state of the water purifier. The hot water outlet represents the outlet with outlet water temperature higher than inlet water temperature, which can be warm water outlet.

[0045] In step S102, the preset standing time can be obtained based on the time when the total amount of bacteria in the stagnant water exceeds the standard or the user's habit of using the water purifier. For example, for a water purifier used in a school, the preset standing time is 24 hours.

[0046] In step S103, when the standing time is greater than the preset standing time and the outlet water temperature is less than the preset sterilization temperature, it is considered that the total number of bacteria in the stagnant water in the hot water outlet pipeline does not meet the health and safety requirements, and the stagnant water needs to be sterilized. Based on the first heat exchange unit arranged on the hot water outlet pipeline, the stagnant water in the hot water outlet pipeline is heated to increase the temperature of the stagnant water in the hot water outlet pipeline without boiling, so as to complete the sterilization of the stagnant water.

[0047] In the scheme, the standing time of the hot water outlet of the water purifier and the outlet water temperature of the hot water outlet are used to determine whether the bacteria in the current hot water outlet pipeline exceeds the standard, and the first heat exchange unit is used to heat the stagnant water in the hot water outlet pipeline to achieve the sterilization purpose of the stagnant water.

[0048] As an implementable way, as shown in Figure 2 The step of controlling the first heat exchange unit to sterilize the stagnant water in the hot water outlet pipeline in step S103 includes:

[0049] S1031, heating the stagnant water temperature in the hot water outlet pipeline to a preset sterilization temperature range, and maintaining the water temperature in the preset sterilization temperature range;

[0050] S1032, in response to the duration that the water temperature is maintained in the preset sterilization temperature range being greater than a preset sterilization time, stopping heating.

[0051] In the scheme, by continuously heating the hot water outlet pipeline, the stagnant water in the heated outlet pipeline meets the temperature requirement of pasteurization, and the high-temperature sterilization of the stagnant water is completed by continuously heating for a preset sterilization time, so that the hot water supplied by the water purifier after standing does not cause the total number of bacteria to not meet the health and safety requirements.

[0052] As an implementable way, the control method further includes:

[0053] In response to the outlet water temperature being higher than a preset outlet water temperature, the first heat exchange unit is controlled to exchange heat with the hot water outlet pipeline to reduce the outlet water temperature to the preset outlet water temperature.

[0054] In the scheme, the temperature of the first heat exchange unit after heating the hot water outlet pipeline is relatively high, which will affect the water temperature of the water purifier supplying hot water. The first heat exchange unit is used to quickly cool the hot water outlet pipeline after completing the sterilization treatment of the stagnant water, so that the water purifier can meet the high-precision temperature control of hot water supply.

[0055] As an implementable way, a second heat exchange unit is arranged on the water inlet pipeline of the water purifier, the first heat exchange unit and the second heat exchange unit are connected, and the control method further includes:

[0056] In response to the first heat exchange unit being in a working state, the water inlet temperature of the water inlet is obtained;

[0057] In response to the water inlet temperature being lower than a preset water inlet temperature, the first heat exchange unit and the second heat exchange unit are connected, and the heat of the hot water outlet pipeline is used to heat the water inlet pipeline.

[0058] In the scheme, the first heat exchange unit and the second heat exchange unit are connected through a conveying pipe, and the second heat exchange unit is used to heat the water inlet pipeline. When the first heat exchange unit is working, the residual heat obtained by the first heat exchange unit through heat exchange of the hot water outlet pipeline is guided to the second heat exchange unit through the conveying pipe, and the second heat exchange unit heats the water inlet pipeline by using the residual heat to improve the water inlet temperature of the water purifier and reduce the heating energy consumption of the water purifier.

[0059] As an implementable way, the first heat exchange unit includes a vortex air supply assembly and a first heat exchange assembly, the first heat exchange assembly is used for heat exchange with the hot water outlet pipeline, and the step of controlling the first heat exchange unit to perform heat exchange with the hot water outlet pipeline includes:

[0060] obtaining a temperature difference between the outlet water temperature and the preset outlet water temperature;

[0061] controlling the vortex air supply assembly to deliver cold air to the first heat exchange assembly, and the power of the vortex air supply assembly is proportional to the temperature difference.

[0062] In the scheme, the first heat exchange unit includes a vortex air supply assembly and a first heat exchange assembly as a vortex heat exchange unit, the vortex air supply assembly includes a cold air pipeline, a hot air pipeline and an air pressure pump, and the cold air or hot air is delivered to the first heat exchange assembly to perform heat exchange between the first heat exchange assembly and the hot water outlet pipeline. And based on the temperature difference between the outlet water temperature and the preset outlet water temperature, the power of the air pressure pump is adjusted to control the flow of cold air or hot air delivered to the first heat exchange assembly to adjust the outlet water temperature.

[0063] As an implementable way, the water purifier includes a filtering unit, and the control method further includes:

[0064] In response to the standing time being greater than the preset standing time, the filtering unit is flushed.

[0065] In the scheme, while heating and sterilizing the stagnant water in the hot water outlet pipeline, the filtering unit is flushed to ensure the water quality of the entire water purifier water supply pipeline and avoid the risk of exceeding the total number of bacteria in the water purifier water supply.

[0066] The working mode of the control method of the water purifier in the embodiment will be explained in detail through specific implementation manners:

[0067] As shown in Figure 3 The water purifier includes a heating tank 1, and the heating tank 1 provides hot water supply for the water purifier.

[0068] A first heat exchange unit is installed on the hot water outlet pipe of heating tank 1. The first heat exchange unit includes a first heat exchange component 11 and a vortex air supply component 12. The vortex air supply component 12 includes a hot air control valve 121, a hot air exhaust valve, a cold air control valve 123, a cold air exhaust valve, a vortex tube 125, a pressure pump 126, a pump control valve 127, and an inlet one-way valve. A water temperature probe 2 is also installed on the hot water outlet pipe to detect the temperature of the hot water after passing through the first heat exchange unit. The hot water from the heating tank is ultimately supplied externally through the hot water outlet valve 13.

[0069] On the side of the water inlet pipe of the heating tank 1, a water inlet pipe, a second heat exchange unit 3, a filter unit and a pressure tank 4 are arranged in sequence. The filter unit includes a first pre-filter 21, a second pre-filter 22, a reverse osmosis filter 23 and a post-filter 24.

[0070] The second heat exchange unit 3 is connected to the first heat exchange unit through the delivery pipe 31. An inlet water temperature probe 32 and an inlet water valve 33 are also installed on the inlet water pipe to detect the inlet water temperature after passing through the second heat exchange unit 3.

[0071] The operating modes of a water purifier include:

[0072] Hot water output mode: The air pump control valve 127, air pressure pump 126, cold air control valve 123 and hot air inlet valve 122 of the vortex air supply component 12 are all opened at the same time. At this time, the cold air in the vortex tube is continuously sent to the first heat exchange component 11. The cold air and the hot water in the first heat exchange component 11 flow in opposite directions, so the water flowing in the first heat exchange component 11 can be cooled down quickly, so that hot water at the preset temperature can be obtained.

[0073] Sterilization mode: The water purifier detects that the hot water outlet valve 13 and the inlet valve 31 have not been opened for more than the preset settling time. The preset settling time can be 24 hours. At the same time, the temperature probe 2 detects that the water temperature at the hot water outlet is lower than the preset sterilization temperature, which is generally 40℃.

[0074] At this time, the water purifier enters the sterilization mode, that is, the air pump control valve 127, air pressure pump 126, cold air control valve 123 and hot air control valve 122 are opened, and the hot water outlet pipe is heated through the first heat exchange component until the outlet water temperature probe 2 detects that the hot water outlet temperature has reached the preset sterilization temperature. The preset sterilization temperature can be 70°C, which is based on the temperature requirement of pasteurization, and is maintained at 70°C for 15 minutes, so as to use hot air to sterilize the hot water outlet pipe in the first heat exchange unit at high temperature.

[0075] Because the temperature inside the first heat exchange unit in the sterilization mode is high, the outlet water temperature may be high. The ratio of cold air to hot air intake in the first heat exchange unit will be adjusted until the outlet water temperature detected by the outlet water temperature probe 2 reaches 50°C.

[0076] Meanwhile, in actual use, the initial temperature of the hot water in the hot water tank 1 is relatively high, but as it is used continuously, if the constant hot water outlet flow rate is maintained, the hot water temperature at the hot water outlet will become lower and lower, that is, the outlet water temperature detected by the outlet water temperature probe 2 becomes lower and lower, but in this embodiment, the air supply flow rate into the first heat exchange assembly can be adjusted by adjusting the power of the air pressure pump 126, so as to indirectly control the heat exchange amount of the first heat exchange assembly, thereby effectively controlling the hot water outlet temperature to be constant at the preset outlet water temperature.

[0077] Monitoring raw water temperature: the water purification machine monitors the raw water temperature in the inlet water pipe in real time through the inlet water temperature probe 32, and the preset inlet water temperature of the water purification machine is 25℃±5℃. If the inlet water temperature is lower than the preset inlet water temperature, the conveying pipe between the first heat exchange unit and the second heat exchange unit is opened. In the case that the first heat exchange unit is working, the hot air in the first heat exchange assembly is introduced into the second heat exchange unit to heat the raw water in the inlet water pipeline, so that the raw water temperature meets the demand of the preset inlet water temperature.

[0078] The control method of the water purification machine provided in this embodiment can timely heat and sterilize the stagnant water in the hot water outlet pipeline without adding additional sterilization devices, so as to ensure that the total number of bacteria in the outlet water meets the health and safety requirements. By connecting the first heat exchange unit and the second heat exchange unit, the residual heat in the first heat exchange unit is used to heat the inlet water pipeline, so as to reduce the energy consumption of the water purification machine.

[0079] Embodiment 2

[0080] Corresponding to the control method of the water purification machine, the disclosure also provides an embodiment of a control system of a water purification machine.

[0081] Figure 4 A module schematic diagram of a control system of a water purification machine is provided for an exemplary embodiment of the disclosure, a first heat exchange unit is arranged on a hot water outlet pipeline of the water purification machine, and the control system 100 comprises a standing time acquisition module 101, a temperature acquisition module 102 and a sterilization module 103.

[0082] The standing time acquisition module 101 is used to acquire the standing time of the hot water outlet of the water purification machine.

[0083] The temperature acquisition module 102 is used to acquire the outlet water temperature of the hot water outlet in response to the standing time being greater than the preset standing time.

[0084] The sterilization module 103 is used to control the first heat exchange unit to heat and sterilize the stagnant water in the hot water outlet pipeline in response to the outlet water temperature being lower than the preset sterilization temperature.

[0085] As an implementable manner, the sterilization module 103 is further configured to heat the stagnant water in the hot water outlet pipeline to a preset sterilization temperature range and maintain the water temperature in the preset sterilization temperature range.

[0086] The sterilization module 103 is further configured to stop heating when the duration that the water temperature is maintained in the preset sterilization temperature range is greater than a preset sterilization time.

[0087] As an implementable manner, the control system further comprises a temperature adjusting module:

[0088] The temperature adjusting module is configured to control the first heat exchange unit to exchange heat with the hot water outlet pipeline to reduce the outlet water temperature to a preset outlet water temperature when the outlet water temperature is higher than a preset outlet water temperature.

[0089] As an implementable manner, a second heat exchange unit is arranged on the water inlet pipeline of the water purifier, and the first heat exchange unit and the second heat exchange unit are connected.

[0090] The temperature obtaining module 102 is further configured to obtain the water inlet temperature of the water inlet when the first heat exchange unit is in a working state.

[0091] The temperature adjusting module is further configured to connect the first heat exchange unit and the second heat exchange unit to heat the water inlet pipeline with the heat of the hot water outlet pipeline when the water inlet temperature is lower than a preset water inlet temperature.

[0092] As an implementable manner, the first heat exchange unit comprises a vortex air supply assembly and a first heat exchange assembly, and the first heat exchange assembly exchanges heat with the hot water outlet pipeline.

[0093] The temperature obtaining module 102 is further configured to obtain a temperature difference between the outlet water temperature and the preset outlet water temperature.

[0094] The temperature adjusting module is further configured to control the vortex air supply assembly to supply cold air to the first heat exchange assembly, and the power of the vortex air supply assembly is proportional to the temperature difference.

[0095] As an implementable manner, the water purifier comprises a filtering unit, and the control method further comprises a flushing module.

[0096] The flushing module is configured to flush the filtering unit when the standing time is greater than a preset standing time.

[0097] For the system embodiments, since they basically correspond to the method embodiments, the relevant parts are referred to the part of the method embodiments. The system embodiments described above are only illustrative, wherein the units described as separate components can or can not be physically separated, and the components of the units can or can not be physical units, i.e., can be located in one place or distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purposes of the present disclosure.

[0098] Embodiment 3

[0099] Figure 5 A structural schematic diagram of an electronic device is shown for an example embodiment of the present disclosure, which includes a memory, a processor, and a computer program stored in the memory and used to run on the processor, and the processor implements the control method of the water purifier of any of the above embodiments when executing the computer program. Figure 5 The electronic device 90 shown is only an example and should not limit the functions and use range of the embodiments of the present disclosure.

[0100] As Figure 5 shown, the electronic device 90 can be in the form of a general computing device, for example, it can be a server device. The components of the electronic device 90 can include but are not limited to: the above-mentioned at least one processor 91, the above-mentioned at least one memory 92, a bus 93 connecting different system components including the memory 92 and the processor 91.

[0101] The bus 93 includes a data bus, an address bus, and a control bus.

[0102] The memory 92 can include volatile memory, such as a random access memory (RAM) 921 and / or a cache memory 922, and can further include a read-only memory (ROM) 923.

[0103] The memory 92 can further include a program tool 925 (or utility tool) having a set of (at least one) program modules 924, such as an operating system, one or more application programs, other program modules, and program data, each of which or some combination of which can include implementation of a network environment.

[0104] The processor 91 performs various function applications and data processing by running the computer program stored in the memory 92, such as the control method of the water purifier provided by any of the above embodiments.

[0105] The electronic device 90 can also communicate with one or more external devices 94 such as a keyboard or a pointing device, among others. This communication can occur via Input / Output (I / O) interface 95. Still yet, the electronic device 90 can communicate with one or more networks, such as a local area network (LAN), a wide area network (WAN), and / or the Internet, through network adapter 96. As depicted, network adapter 96 communicates with the other components of the electronic device 90 through bus 93. It should be appreciated that although not shown, other hardware and / or software modules could be used in conjunction with the electronic device 90. Such as, but not limited to, microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data archival storage systems, etc.

[0106] It should be noted that although several units / modules or sub-units / modules of the electronic device are mentioned in the foregoing detailed description, such division is merely exemplary and not mandatory. Indeed, according to embodiments of the present disclosure, features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, features and functions of one unit / module described above can be further divided into units / modules embodied by multiple units / modules.

[0107] Embodiment 4

[0108] The embodiments of the present disclosure further provide a computer readable storage medium, having stored thereon a computer program, which, when executed by a processor, implements the control method of the water purifier according to any one of the embodiments.

[0109] More specifically, the readable storage medium can include, but is not limited to, a portable disc, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0110] Embodiment 5

[0111] The embodiments of the present disclosure further provide a computer program product, comprising a computer program, which, when executed by a processor, implements the control method of the water purifier according to any one of the embodiments.

[0112] The program code for carrying out the computer program product of the present disclosure can be written in any combination of one or more programming languages, and can be executed entirely on the user device, partly on the user device and partly on a remote device, or entirely on a remote device, as a stand-alone software package, or partly on the user device and partly on a remote device, or entirely on a remote device.

[0113] Although the specific embodiments of the present disclosure are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present disclosure is defined by the appended claims. Those skilled in the art can make various changes or modifications to the embodiments without departing from the principles and essence of the present disclosure, and these changes and modifications all fall within the protection scope of the present disclosure.

Claims

1. A control method of a water purifier, characterized by, The first heat exchange unit is arranged on a hot water outlet pipeline of the water purifier, and the control method comprises the following steps: acquiring a standing time of a hot water outlet of the water purifier; in response to the standing time being greater than a preset standing time, acquiring a water outlet temperature of the hot water outlet; in response to the water outlet temperature being lower than a preset sterilization temperature, controlling the first heat exchange unit to heat and sterilize stagnant water in the hot water outlet pipeline; the step of controlling the first heat exchange unit to sterilize the stagnant water in the hot water outlet pipeline comprises the following steps: heating the stagnant water in the hot water outlet pipeline to a preset sterilization temperature interval, and maintaining the water temperature in the preset sterilization temperature interval; in response to a duration for which the water temperature is maintained in the preset sterilization temperature interval being greater than a preset sterilization time, stopping heating.

2. The control method of the water purifier according to claim 1, characterized by, The control method further comprises the following steps: in response to the water outlet temperature being higher than a preset water outlet temperature, controlling the first heat exchange unit to exchange heat with the hot water outlet pipeline to reduce the water outlet temperature to the preset water outlet temperature.

3. The control method of the water purifier according to claim 2, characterized by, The second heat exchange unit is arranged on a water inlet pipeline of the water purifier, the first heat exchange unit and the second heat exchange unit are connected, and the control method further comprises the following steps: in response to the first heat exchange unit being in a working state, acquiring a water inlet temperature of a water inlet; in response to the water inlet temperature being lower than a preset water inlet temperature, connecting the first heat exchange unit and the second heat exchange unit to heat the hot water outlet pipeline to heat the water inlet pipeline.

4. The control method of the water purifier according to claim 2, characterized in that, The first heat exchange unit comprises a vortex air supply assembly and a first heat exchange assembly, the first heat exchange assembly exchanges heat with the hot water outlet pipeline, and the step of controlling the first heat exchange unit to exchange heat with the hot water outlet pipeline comprises the following steps: acquiring a temperature difference between the water outlet temperature and the preset water outlet temperature; controlling the vortex air supply assembly to supply cold air to the first heat exchange assembly, and the power of the vortex air supply assembly is proportional to the temperature difference.

5. The control method of the water purifier according to claim 1, characterized in that, The water purifier comprises a filtering unit, and the control method further comprises the following steps: in response to the standing time being greater than the preset standing time, flushing the filtering unit.

6. A control system for a water purification machine, characterized in that The first heat exchange unit is arranged on a hot water outlet pipeline of the water purifier, and the control system comprises a standing time acquisition module, a water outlet temperature acquisition module, and a sterilization module; the standing time acquisition module is configured to acquire a standing time of a hot water outlet of the water purifier; the water outlet temperature acquisition module is configured to, in response to the standing time being greater than a preset standing time, acquire a water outlet temperature of the hot water outlet; the sterilization module is configured to, in response to the water outlet temperature being lower than a preset sterilization temperature, control the first heat exchange unit to heat and sterilize stagnant water in the hot water outlet pipeline, and the sterilization module is further configured to heat the stagnant water in the hot water outlet pipeline to a preset sterilization temperature interval, and maintain the water temperature in the preset sterilization temperature interval; and in response to a duration for which the water temperature is maintained in the preset sterilization temperature interval being greater than a preset sterilization time, stop heating.

7. An electronic device comprising a memory, a processor, and a computer program stored on the memory for running on the processor, characterized in that, The processor executes the computer program to implement the control method of the water purifier according to any one of claims 1 to 5.

8. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program, when executed by a processor, implements the control method of the water purifier according to any one of claims 1 to 5.

9. A computer program product comprising a computer program, characterized in that, The computer program, when executed by a processor, implements the control method of the water purifier according to any one of claims 1 to 5.

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