Water purification protection device, control method and control system

Abstract

The invention provides a water purification protection device, a control method and a control system. The water purification protection device comprises a water storage device, a water mixing pipeline, a water outlet, a first valve, a second valve, a liquid level sensor, a first temperature sensor and a controller, the first valve comprises a first water inlet end and a first water outlet end, and the second valve comprises a second water inlet end, a third water inlet end and a second water outlet end; the first water inlet end is connected with a home-entry pipeline, and the first water outlet end is connected with one end of the water mixing pipeline; the second water inlet end is connected with the other end of the water mixing pipeline, the third water inlet end is communicated with the water storage device, and the second water outlet end is connected with the water outlet; the water outlet is connected with a water inlet of a water purifier; the controller is used for controlling the opening degree of the first valve and the second valve according to the water storage parameters. The opening degrees of the first valve and the second valve are controlled, so that the temperature of water entering the water purifier is within the target temperature range, bacteria breeding and scale generation caused by high temperature of water are avoided, the water purification effect of the water purifier is improved, and the service life of the water purifier is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of water purifier control, and in particular to a water purification protection device, a control method and a control system. Background Art

[0002] Nowadays, users prefer comfort. They usually use a water heater to heat water and then circulate it in the household pipes, so that each water point in the home can use hot water faster. The hot water in the household pipes flows into the water purifier. The temperature in the household pipes is relatively high, which is easy to breed bacteria and produce impurities such as scale, thereby affecting the water purification effect and service life of the water purifier. Summary of the invention

[0003] The technical problem to be solved by the present disclosure is to overcome the defects in the prior art that the water temperature in the household pipe is too high, which is easy to breed bacteria and flows into the water purifier, resulting in poor water purification effect, and to provide a water purification protection device, control method and control system.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] In a first aspect, a water purification protection device is provided, the water purification protection device comprising: a water storage device, a water mixing pipeline, a water outlet, a first valve, a second valve, a liquid level sensor, a first temperature sensor and a controller; the first valve comprises: a first water inlet end and a first water outlet end, the second valve comprises: a second water inlet end, a third water inlet end and a second water outlet end;

[0006] The first water inlet is used to connect to the household pipeline, the first water outlet is connected to one end of the mixed water pipeline; the second water inlet is connected to the other end of the mixed water pipeline, the third water inlet is connected to the water storage device, and the second water outlet is connected to the water outlet of the water purification protection device; the water outlet is used to connect to the water inlet of the water purifier;

[0007] The first temperature sensor and the liquid level sensor are both electrically connected to the controller, and the liquid level sensor is disposed in the water storage device; the first temperature sensor collects the inlet water temperature in the household pipe and sends the inlet water temperature to the controller, and the liquid level sensor collects the water storage volume in the water storage device and sends the water storage volume to the controller;

[0008] The controller is used to control the opening of the first valve and the opening of the second valve according to water storage parameters so that the temperature of water entering the water purifier is within a target temperature range; wherein the water storage parameters include: the water storage volume and the water inlet temperature.

[0009] Optionally, the water storage parameter further includes: storage time of the water in the water storage device;

[0010] In response to the water storage parameter satisfying the first preset condition, the controller is used to adjust the opening of the first valve; the adjusting the opening of the first valve includes: reducing the opening of the first valve to a target opening or adjusting the opening of the first valve to zero;

[0011] In response to the water storage parameter satisfying the second preset condition and / or the water storage parameter satisfying the third preset condition, the controller is used to adjust the opening of the second valve so that the water storage device, the mixing water pipeline and the water outlet of the water purification protection device are connected;

[0012] The first preset condition includes: the water inlet temperature is greater than the temperature threshold and the water storage capacity is less than the water lower limit threshold; the second preset condition includes at least one of the following: the water storage capacity is greater than or equal to the water upper limit threshold, the storage time is greater than the preset time and the water inlet temperature is greater than the temperature threshold; the third preset condition includes: the water inlet temperature is greater than the temperature threshold, the water storage capacity is greater than or equal to the water lower limit threshold and the water storage capacity is less than the water upper limit threshold.

[0013] Optionally, the water storage parameter further includes: the water storage temperature in the water storage device; a second temperature sensor is provided in the water storage device, the second temperature sensor is electrically connected to the controller, and the second temperature sensor is used to collect the water storage temperature and send the water storage temperature to the controller;

[0014] The controller is used to receive the water storage temperature collected by the second temperature sensor and adjust the opening of the second water inlet end and the third water inlet end of the second valve;

[0015] The opening degree of the second water inlet end is negatively correlated with the water inlet temperature, and the opening degree of the third water inlet end is positively correlated with the water storage temperature.

[0016] Optionally, the purified water protection device further comprises: a third valve; a fourth water inlet end of the third valve is connected to the purified water outlet of the water purifier, and a third water outlet end of the third valve is connected to the water inlet of the water storage device;

[0017] The controller also controls the third valve to be turned on in response to the water storage amount being less than the water volume upper limit threshold; or, the controller also adjusts the opening of the third valve to zero in response to the water storage amount being equal to the water volume upper limit threshold.

[0018] Optionally, the water purification protection device further includes:

[0019] A filter device, wherein the filter device is disposed in the mixed water pipeline, and the water flowing out through the first end of the mixed water pipeline is filtered by the filter device and then flows out through the second end of the mixed water pipeline;

[0020] And / or, a sterilization device, the sterilization device is arranged in the water storage device, and the sterilization device is electrically connected to the controller; the controller also starts the sterilization device of the water storage device in response to the storage time of the water in the water storage device exceeding the preset time, and turns off the sterilization device after the sterilization continues for a sterilization time;

[0021] And / or, an alarm, the liquid level sensor and the temperature sensor are electrically connected to the alarm respectively; the alarm issues a prompt to suspend use in response to the water storage amount being less than the water amount lower limit threshold and the water inlet temperature being greater than the temperature threshold;

[0022] And / or, the water storage device has a turbulent flow structure therein.

[0023] In a second aspect, a control method for a water purification protection device is provided, wherein the water purification protection device comprises: a water storage device, a water mixing pipeline, a water outlet, a first valve, a second valve, a liquid level sensor, a first temperature sensor and a controller; the first valve comprises: a first water inlet end and a first water outlet end, and the second valve comprises: a second water inlet end, a third water inlet end and a second water outlet end;

[0024] The first water inlet is used to connect to the household pipeline, the first water outlet is connected to one end of the mixed water pipeline; the second water inlet is connected to the other end of the mixed water pipeline, the third water inlet is connected to the water storage device, and the second water outlet is connected to the water outlet of the water purification protection device; the water outlet is used to connect to the water inlet of the water purifier;

[0025] The first temperature sensor and the liquid level sensor are both electrically connected to the controller, and the liquid level sensor is disposed in the water storage device; the first temperature sensor collects the inlet water temperature in the household pipe and sends the inlet water temperature to the controller, and the liquid level sensor collects the water storage volume in the water storage device and sends the water storage volume to the controller;

[0026] The control method of the water purification protection device comprises:

[0027] Acquire water storage parameters; wherein the water storage parameters include: the water storage volume in the water storage device and the water inlet temperature in the household pipeline;

[0028] The opening of the first valve and / or the opening of the second valve is controlled according to the water storage parameter so that the temperature of water entering the water purifier is within a target temperature range.

[0029] Optionally, the water storage parameter further includes: storage time of the water in the water storage device; and controlling the opening of the first valve and the opening of the second valve according to the water storage parameter includes:

[0030] In response to the water storage parameter satisfying the first preset condition, adjusting the opening of the first valve; the adjusting the opening of the first valve includes: reducing the opening of the first valve to a target opening or adjusting the opening of the first valve to zero;

[0031] In response to the water storage parameter satisfying the second preset condition and / or the water storage parameter satisfying the third preset condition, adjusting the opening of the second valve to connect the water storage device, the mixing water pipeline and the water outlet of the water purification protection device;

[0032] The first preset condition includes: the water inlet temperature is greater than the temperature threshold and the water storage capacity is less than the water lower limit threshold; the second preset condition includes at least one of the following: the water storage capacity is greater than or equal to the water upper limit threshold, the storage time is greater than the preset time and the water inlet temperature is greater than the temperature threshold; the third preset condition includes: the water inlet temperature is greater than the temperature threshold, the water storage capacity is greater than or equal to the water lower limit threshold and the water storage capacity is less than the water upper limit threshold.

[0033] Optionally, the water storage parameter further includes: the water storage temperature in the water storage device; a second temperature sensor is provided in the water storage device; the second temperature sensor is electrically connected to the controller, and the second temperature sensor is used to collect the water storage temperature and send the water storage temperature to the controller;

[0034] The step of controlling the opening of the first valve and the opening of the second valve according to the water storage parameter further comprises:

[0035] adjusting the openings of the second water inlet end and the third water inlet end of the second valve according to the stored water temperature;

[0036] Among them, the opening degree of the second water inlet end is negatively correlated with the water inlet temperature, and the opening degree of the third water inlet end is positively correlated with the water storage temperature.

[0037] Optionally, the purified water protection device further comprises: a third valve; a fourth water inlet end of the third valve is connected to the purified water outlet of the water purifier, and a third water outlet end of the third valve is connected to the water inlet of the water storage device;

[0038] The control method of the water purification protection device also includes:

[0039] In response to the water storage amount being less than an upper water amount threshold, controlling the third valve to be turned on;

[0040] Or, in response to the water storage amount reaching the water amount upper limit threshold, the opening of the third valve is adjusted to zero.

[0041] Optionally, the water purification protection device further comprises: a sterilization device, the sterilization device is arranged in the water storage device, and the sterilization device is electrically connected to the controller;

[0042] The control method of the water purification protection device also includes:

[0043] In response to the storage time of the water in the water storage device exceeding the preset time, the sterilization device of the water storage device is started, and the sterilization device is turned off after the sterilization is continued for a sterilization time.

[0044] In a third aspect, a control system of a water purification protection device is provided, wherein the water purification protection device comprises: a water storage device, a water mixing pipeline, a water outlet, a first valve, a second valve, a liquid level sensor, a first temperature sensor and a controller; the first valve comprises: a first water inlet end and a first water outlet end, and the second valve comprises: a second water inlet end, a third water inlet end and a second water outlet end;

[0045] The first water inlet is used to connect to the household pipeline, the first water outlet is connected to one end of the mixed water pipeline; the second water inlet is connected to the other end of the mixed water pipeline, the third water inlet is connected to the water storage device, and the second water outlet is connected to the water outlet of the water purification protection device; the water outlet is used to connect to the water inlet of the water purifier;

[0046] The first temperature sensor and the liquid level sensor are both electrically connected to the controller, and the liquid level sensor is disposed in the water storage device; the first temperature sensor collects the inlet water temperature in the household pipe and sends the inlet water temperature to the controller, and the liquid level sensor collects the water storage volume in the water storage device and sends the water storage volume to the controller;

[0047] The control system of the water purification protection device includes:

[0048] A parameter acquisition module, used to acquire water storage parameters; wherein the water storage parameters include: the water storage volume in the water storage device and the water inlet temperature in the household pipeline;

[0049] A control module is used to control the opening of the first valve and / or the opening of the second valve according to the water storage parameter so that the temperature of water entering the water purifier is within a target temperature range.

[0050] Optionally, the water storage parameter also includes: the storage time of the water in the water storage device; the control module includes:

[0051] In response to the water storage parameter satisfying the first preset condition, adjusting the opening of the first valve; adjusting the opening of the first valve includes: reducing the opening of the first valve to a target opening or adjusting the opening of the first valve to zero;

[0052] In response to the water storage parameter satisfying the second preset condition and / or the water storage parameter satisfying the third preset condition, adjusting the opening of the second valve to connect the water storage device, the mixing water pipeline and the water outlet of the water purification protection device;

[0053] The first preset condition includes: the water inlet temperature is greater than the temperature threshold and the water storage capacity is less than the water volume lower limit threshold; the second preset condition includes at least one of the following: the water storage capacity is greater than or equal to the water volume upper limit threshold, the storage time is greater than the preset time and the water inlet temperature is greater than the temperature threshold; the third preset condition includes: the water inlet temperature is greater than the temperature threshold, the water storage capacity is greater than or equal to the water volume lower limit threshold and the water storage capacity is less than the water volume upper limit threshold.

[0054] Optionally, the water storage parameter further includes: the water storage temperature in the water storage device; a second temperature sensor is provided in the water storage device; the second temperature sensor is electrically connected to the controller, and the second temperature sensor is used to collect the water storage temperature and send the water storage temperature to the controller;

[0055] The control module also includes:

[0056] adjusting the opening of the second water inlet end and the third water inlet end of the second valve according to the water storage temperature;

[0057] Among them, the opening degree of the second water inlet end is negatively correlated with the water inlet temperature, and the opening degree of the third water inlet end is positively correlated with the water storage temperature.

[0058] Optionally, the purified water protection device further comprises: a third valve; a fourth water inlet end of the third valve is connected to the purified water outlet of the water purifier, and a third water outlet end of the third valve is connected to the water inlet of the water storage device;

[0059] The control system of the water purification protection device also includes:

[0060] A third valve control module, configured to control the third valve to be turned on in response to the water storage amount being less than an upper water amount threshold;

[0061] Or, it is used to adjust the opening of the third valve to zero in response to the water storage amount reaching the upper water amount threshold.

[0062] Optionally, the water purification protection device further includes: a sterilization device, the sterilization device is arranged in the water storage device, and the sterilization device is electrically connected to the controller;

[0063] The control system of the water purification protection device also includes:

[0064] The sterilization module is used to start the sterilization device of the water storage device in response to the storage time of water in the water storage device exceeding the preset time, and turn off the sterilization device after the sterilization continues for a sterilization time.

[0065] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present disclosure.

[0066] The positive progressive effect of the present disclosure is that the present disclosure controls the opening of the first valve and the opening of the second valve based on the water storage parameters through a water purification protection device including a water storage device, so that the water temperature entering the water purifier is within the target temperature range, avoiding hot water from flowing into the water inlet of the water purifier through the household pipe, avoiding the breeding of bacteria and the production of scale due to high temperature, and improving the water purification effect and service life of the water purifier. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 A schematic diagram of the water flow direction of a water purifier provided by an embodiment of the present disclosure;

[0068] Figure 2 A schematic structural diagram of a water purification protection device provided by an exemplary embodiment of the present disclosure;

[0069] Figure 3 A flow chart of a control method of a water purification protection device provided by an exemplary embodiment of the present disclosure;

[0070] Figure 4 A module schematic diagram of a control system of a water purification protection device provided by an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0071] The present disclosure is further described below by way of examples, but the present disclosure is not limited to the scope of the examples.

[0072] Prefixes such as "first" and "second" are used in the embodiments of the present disclosure only 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 prefixes such as ordinal numbers to distinguish description objects in the embodiments of the present disclosure does not constitute a limitation on the described objects. For the statement of the described objects, please refer to the description in the context of the claims or embodiments, and no unnecessary limitation should be constituted due to the use of such prefixes. In addition, in the description of the present embodiment, unless otherwise specified, the meaning of "plurality" is two or more.

[0073] See also Figure 1If the water purifier 19 and the water heater 311 are used, the pipes of the water purifier 19 and the water heater 311 are connected. After the circulation function of the water heater 311 is turned on, the water in the household pipe 18 is heated, and the water heater 311 needs to use cold water for return water for heat circulation, so as to form a circulation loop. However, when the return water passes through the water purifier 19, the water heated by the water heater 311 may transfer heat to the water purifier 19 through heat conduction, and the use of the water purifier 19 at this time will cause hot water to directly enter the water purifier 19 through the household pipe 18. The temperature in the household pipe 18 is high, which is easy to breed bacteria and produce impurities such as scale. If the hot water directly enters the water purifier 19 through the household pipe 18, it will affect the water purification effect and service life of the water purifier 19. If the water purifier 19 uses a reverse osmosis membrane as a filter, it will also cause damage to the reverse osmosis membrane.

[0074] On this basis, the embodiment of the present invention provides a water purification protection device, see Figure 2 The water purification protection device 11 includes: a water storage device 12, a water mixing pipeline 13, a water outlet 14, a first valve 15, a second valve 16, a liquid level sensor (not shown in the figure), a first temperature sensor 17 and a controller (not shown in the figure).

[0075] The first valve 15 includes a first water inlet and a first water outlet. The first water inlet is used to connect to the household pipe 18, and the first water outlet is connected to one end of the mixed water pipe 13. The second valve 16 includes a second water inlet, a third water inlet, and a second water outlet. The second water inlet is connected to the other end of the mixed water pipe 13, the third water inlet is connected to the water storage device 12, and the second water outlet is connected to the water outlet 14 of the water purification protection device 11.

[0076] The water outlet 14 of the water purification protection device 11 is used to connect to the water inlet 20 of the water purifier 19. Therefore, the water in the household pipe 18 will be processed by the water purification protection device 11 and then flow into the water inlet 20 of the water purifier 19, which can prevent the water in the household pipe 18 from directly flowing into the water inlet 20 of the water purifier 19.

[0077] The liquid level sensor is electrically connected to the controller. The liquid level sensor is arranged in the water storage device 12, and is used to collect the water storage volume in the water storage device 12, and send the water storage volume to the controller. The setting position of the liquid level sensor can be selected according to the actual situation, and the number of liquid level sensors can also be selected according to the actual situation, and is not particularly limited here. If the volume of the water storage device 12 is large, multiple liquid level sensors can also be set to accurately collect the water storage volume in the water storage device 12, and the water storage volume collected by the multiple liquid level sensors will be sent to the controller. The controller averages the water storage volume collected by the multiple liquid level sensors to obtain a more accurate water storage volume. Multiple liquid level sensors can be distributed at different positions of the water storage device 12, and the distribution position and number of the liquid level sensors can be specifically set according to the actual situation, and are not particularly limited here.

[0078] The first temperature sensor 17 is electrically connected to the controller. The first temperature sensor 17 collects the inlet water temperature in the household pipe 18 and sends the inlet water temperature to the controller. The first temperature sensor 17 can be set near the first water inlet end of the first valve 15 to collect the inlet water temperature in the household pipe 18, or can be set at other places where the inlet water temperature can be collected. The specific setting can be based on actual conditions and is not particularly limited here.

[0079] The number and position of the first temperature sensor 17 can be set according to actual conditions and are not particularly limited here. In order to improve the accuracy of the inlet water temperature collection, multiple temperature sensors can be set, and the inlet water temperatures collected by the multiple temperature sensors are sent to the controller. The controller averages the inlet water temperatures collected by the multiple temperature sensors to obtain a more accurate inlet water temperature.

[0080] After the controller receives the water storage parameters collected by the first temperature sensor 17 and the liquid level sensor, the controller is used to control the opening of the first valve 15 and the opening of the second valve 16 according to the water storage parameters so that the water temperature entering the water purifier 19 is within the target temperature range. The water storage parameters include: water storage volume and water inlet temperature.

[0081] The target temperature range can be selected according to the actual situation. The appropriate target temperature range can be selected by considering factors such as the correlation between bacteria generation and temperature and the temperature resistance of the filter material in the water purifier 19, and is not particularly limited here. For example, the higher the temperature, the easier it is for water to generate scale and bacteria, so a lower target temperature range needs to be set to avoid the generation of scale and bacteria. Assuming that the filter material has a tolerance temperature of 45°C, the target temperature range can be set below 45°C, for example, to [0°C, 35°C].

[0082] The controller controls the opening of the first valve 15 and the second valve 16 according to the water storage parameters, so that the water in the water storage device 12 can be mixed with the water flowing into the household pipe 18, so as to achieve the function of mixing water and cooling, so that the water temperature entering the water purifier 19 can be within the target temperature range, thereby preventing the water in the household pipe 18 from directly flowing into the water purifier 19. The water temperature in the water storage device is generally low, for example, room temperature water.

[0083] The water purification protection device 11 can be flexibly installed on the household inlet pipe 18 between the existing water purifier 19 and the water heater 311 in the home, so as to protect the water purifier 19 so that the water temperature entering the water purifier 19 is within the target temperature range, thereby preventing bacteria and scale from breeding due to high temperature, and improving the water purification effect and service life of the water purifier 19.

[0084] In this embodiment, the water purification protection device 11 can be installed or not according to user needs. It can be flexibly installed on the outside of the original water purifier 19 to protect the water purifier 19. For users who have already purchased the water purifier 19, it can avoid replacing the original water purifier 19 and reduce the replacement cost. The water purification protection device 11 is flexible and easy to install. The opening of the first valve 15 and the opening of the second valve 16 are controlled based on the water storage parameters to make the water temperature entering the water purifier 19 within the target temperature range, avoid hot water from flowing into the water inlet 20 of the water purifier 19 through the household pipe 18, avoid the breeding of bacteria and the production of scale due to high temperature, and improve the water purification effect and service life of the water purifier 19.

[0085] In one embodiment, in response to the water storage parameter satisfying the first preset condition, the controller is used to adjust the opening of the first valve 15 .

[0086] The first preset condition includes: the water inlet temperature is greater than the temperature threshold and the water storage volume is less than the water volume lower limit threshold. If the water inlet temperature is greater than the temperature threshold, it means that the temperature of the water in the household pipe 18 exceeds the target temperature range. If it directly enters the water purifier 19, it will have an adverse effect on the water purifier 19, such as affecting the service life and water purification effect of the water purifier 19, and it is necessary to mix water and cool it. If the water storage volume is less than the water volume lower limit threshold, it means that the water in the water storage device 12 is not enough to achieve mixing water and cooling. In order to protect the water purifier 19, it is necessary to adjust the opening of the first valve 15 to reduce the amount of water flowing into the water purifier 19 from the household pipe 18, avoid water with too high temperature from entering the water purifier 19, and protect the water purifier 19.

[0087] Adjusting the opening of the first valve 15 includes: reducing the opening of the first valve 15 to a target opening. The temperature threshold, the lower water volume threshold and the target opening can be set according to actual conditions and are not particularly limited here.

[0088] Specifically, when the water storage volume collected by the liquid level sensor is less than the lower limit threshold of the water volume, the first temperature sensor 17 detects that the water inlet temperature is greater than the temperature threshold, and the controller reduces the opening of the first valve 15 to the target opening, thereby reducing the amount of water flowing in through the first valve 15, thereby protecting the water purifier 19.

[0089] In this embodiment, when the inlet water temperature is greater than the temperature threshold and the water storage volume is less than the water volume lower limit threshold, the controller will reduce the opening of the first valve 15 to the target opening so that the water temperature entering the water purifier 19 is within the target temperature range, thereby preventing bacteria and scale from breeding due to high temperature.

[0090] In one embodiment, adjusting the opening of the first valve 15 further includes: adjusting the opening of the first valve 15 to zero, that is, closing the first valve 15 .

[0091] Specifically, when the water storage volume collected by the liquid level sensor is less than the water volume lower limit threshold and the first temperature sensor 17 detects that the water inlet temperature is greater than the temperature threshold, the controller adjusts the opening of the first valve 15 to zero, that is, closes the first valve 15 to prevent hot water from flowing into the water purifier 19 through the first valve 15.

[0092] In this embodiment, when the inlet water temperature is greater than the temperature threshold and the water storage volume is less than the water volume lower limit threshold, the controller will close the first valve 15 to prevent hot water from flowing into the water purifier 19 through the first valve 15, thereby improving the water purification effect and service life of the water purifier 19.

[0093] In one embodiment, the water storage parameters further include: the storage time of the water in the water storage device 12 .

[0094] In response to the water storage parameter satisfying the second preset condition, the controller is used to adjust the opening of the second valve 16 to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11.

[0095] The second preset condition includes at least one of the following: the water storage volume is greater than or equal to the upper water volume threshold, the storage time is greater than the preset time, and the water inlet temperature is greater than the temperature threshold. The upper water volume threshold, the preset time and the temperature threshold can be set according to actual conditions and are not particularly limited here.

[0096] If the water inlet temperature is greater than the temperature threshold, it means that the temperature of the water in the household pipe 18 exceeds the target temperature range. If it directly enters the water purifier 19, it will have an adverse effect on the water purifier 19, and it is necessary to mix the water and cool it down. If the water storage volume is greater than or equal to the upper limit threshold of the water volume, it means that the current water volume can achieve water mixing. If the storage time is greater than the preset time, it means that the water in the water storage device 12 has not been used for a long time. In order to avoid scale and bacteria caused by long-term unused water, it is necessary to control the opening of the second valve 16 so that the water in the water storage device 12 can be used for water mixing.

[0097] Assuming that the temperature threshold is 35°C, the first temperature sensor 17 detects that the water inlet temperature is greater than 35°C, and the water storage volume collected by the liquid level sensor is greater than or equal to the water volume upper limit threshold, water mixing and cooling are required. The controller controls the opening of the second valve 16 to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11, so that the water temperature entering the water purifier 19 is within the target temperature range.

[0098] It should be noted that if the water storage volume is less than the lower limit threshold of the water volume, it means that the current water storage volume is insufficient to achieve water mixing, and water mixing will not be performed, that is, the water storage device 12, the mixing water pipeline 13 and the water purification protection device 11 will not be connected.

[0099] In response to a user's water request, the water in the water storage device 12 is used preferentially. The controller is used to control the opening of the second valve 16 to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11, so that the water in the water storage device 12 flows out through the water outlet 14 to complete the replacement of the water in the water storage device 12.

[0100] Specifically, the controller adjusts the opening of the second water inlet end and the third water inlet end of the second valve 16 according to the mixing ratio of the water storage device 12 and the mixing water pipeline 13. The mixing ratio of the water storage device 12 and the mixing water pipeline 13 can be set according to actual conditions and is not particularly limited here. For different water purifiers 19, the controller can set the mixing ratio according to the water storage capacity per unit time of the water purifier 19 and the volume of the water storage device 12, rather than using the same mixing ratio for different water purifiers 19. For the same water purifier 19, the controller can determine the mixing ratio according to the water storage parameters, so that the water in the water storage device 12 will not be exhausted, but water circulation and mixed water cooling will be achieved.

[0101] Specifically, when the water storage amount collected by the liquid level sensor and the water inlet temperature detected by the first temperature sensor 17 meet the second preset condition, the controller adjusts the opening of the second valve 16 to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11, thereby achieving the purpose of mixing water and cooling.

[0102] The implementation of the second valve 16 includes, but is not limited to, an electric three-way valve, which can be specifically configured according to actual conditions and is not particularly limited herein.

[0103] In this embodiment, the water storage parameters meet the second preset condition, and the controller is used to adjust the opening of the second valve 16 to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11, so that the water temperature entering the water purifier 19 is within the target temperature range, avoiding the breeding of bacteria and the production of scale due to high temperature, thereby improving the water purification effect and service life of the water purifier 19.

[0104] In one embodiment, in response to the water storage parameter satisfying the third preset condition, the controller is used to adjust the opening of the second valve 16 to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11.

[0105] The third preset condition includes: the water inlet temperature is greater than the temperature threshold, the water storage volume is greater than or equal to the water volume lower limit threshold, and the water storage volume is less than the water volume upper limit threshold.

[0106] In this embodiment, the water storage parameters meet the third preset condition, and the controller is used to adjust the opening of the second valve 16 to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11, so that the water temperature entering the water purifier 19 is within the target temperature range, avoiding the breeding of bacteria and the production of scale due to high temperature, thereby improving the water purification effect and service life of the water purifier 19.

[0107] In one embodiment, the water storage parameter also includes: the water storage level in the water storage device 12. The first preset condition also includes: the water storage level is less than the lower limit threshold of the liquid level. The second preset condition also includes: the water storage level is greater than or equal to the upper limit threshold of the liquid level.

[0108] Among them, the upper limit threshold of the liquid level and the lower limit threshold of the liquid level can be set according to actual conditions and are not particularly limited here.

[0109] When the water storage parameters meet the first preset condition, that is, the water storage level collected by the liquid level sensor is less than the lower limit threshold of the liquid level and the first temperature sensor 17 detects that the water inlet temperature is greater than the temperature threshold, the controller will adjust the opening of the first valve 15, thereby reducing the amount of water flowing in through the first valve 15, thereby protecting the water purifier 19.

[0110] When the water storage parameters meet the second preset condition, that is, at least one of the water storage volume is greater than or equal to the water volume upper limit threshold, the storage time is greater than the preset time and the water inlet temperature is greater than the temperature threshold, the controller adjusts the opening of the second valve 16 to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11, so as to achieve the purpose of mixing water cooling.

[0111] Specifically, if the water storage amount is greater than or equal to the upper water volume threshold, the second preset condition is met, and the controller adjusts the opening of the second valve 16 to achieve mixed water cooling. If the water storage amount is greater than or equal to the upper water volume threshold and the storage time is greater than the preset time, the second preset condition is met, and the controller adjusts the opening of the second valve 16 to achieve mixed water cooling. If the three conditions of the water storage amount being greater than or equal to the upper water volume threshold, the storage time being greater than the preset time, and the inlet water temperature being greater than the temperature threshold are met at the same time, the controller adjusts the opening of the second valve 16 to achieve mixed water cooling.

[0112] In this embodiment, the water storage parameters also include the water storage level. The controller receives the water storage level collected by the liquid level sensor and adjusts the opening of the second valve 16 to ensure that the water temperature entering the water purifier 19 is within the target temperature range, thereby preventing bacteria and scale from breeding due to high temperature, thereby improving the water purification effect and service life of the water purifier 19.

[0113] In one embodiment, the water storage parameter further includes: the water storage temperature in the water storage device 12. A second temperature sensor is provided in the water storage device 12, and the second temperature sensor is electrically connected to the controller. The second temperature sensor is used to collect the water storage temperature and send the water storage temperature to the controller.

[0114] In order to improve the accuracy of water storage temperature collection, multiple temperature sensors can be set for water storage temperature, and multiple temperature sensors can be distributed at different positions in the water storage device 12. Multiple temperature sensors send the collected water storage temperature to the controller, and the controller averages the outlet water temperatures collected by the multiple temperature sensors to obtain a more accurate water storage temperature. The position and number of the second temperature sensor can be set according to actual conditions and are not particularly limited here.

[0115] The controller is used to receive the water storage temperature collected by the second temperature sensor and adjust the opening of the second water inlet end and the third water inlet end of the second valve 16. The opening of the second water inlet end is negatively correlated with the water inlet temperature, and the opening of the third water inlet end is positively correlated with the water storage temperature.

[0116] Specifically, the openings of the second water inlet end and the third water inlet end are determined according to the water inlet temperature detected by the first temperature sensor 17 and the water storage temperature detected by the second temperature sensor, thereby allocating the water flow of the second water inlet end and the third water inlet end so that the water temperature entering the water purifier 19 is within the target temperature range. If the water inlet temperature is higher, the opening of the second water inlet end is smaller, and vice versa, if the water inlet temperature is lower, the opening of the second water inlet end is larger. If the water storage temperature is higher, the opening of the third water inlet end is larger, and vice versa, if the water storage temperature is lower, the opening of the third water inlet end is smaller.

[0117] In this embodiment, a second temperature sensor is provided in the water storage device 12, and the controller receives the water storage temperature collected by the second temperature sensor, and adjusts the opening of the second water inlet end and the third water inlet end of the second valve 16 according to the water storage temperature and the water inlet temperature. The water in the mixing pipe 13 and the water in the water storage device 12 can be mixed so that the water temperature entering the water purifier 19 is within the target temperature range, thereby preventing bacteria and scale from breeding due to high temperature, and improving the water purification effect and service life of the water purifier 19.

[0118] In one embodiment, the clean water protection device 11 further includes: a third valve 22 . The fourth water inlet end of the third valve 22 is connected to the municipal water inlet pipe, and the third water outlet end of the third valve 22 is connected to the water inlet of the water storage device 12 .

[0119] The controller also controls the third valve 22 to be turned on in response to the water storage amount being less than the water amount upper limit threshold.

[0120] In this embodiment, the fourth water inlet end is connected to the municipal water inlet pipe, and the third water outlet end is connected to the water filling port of the water storage device 12. When the water storage amount is less than the upper limit threshold of the water amount, the water storage device 12 is filled with water through the municipal water inlet pipe to avoid the situation where the water storage amount is insufficient when water mixing is required, with a high degree of intelligence.

[0121] In one embodiment, the fourth water inlet end of the third valve 22 is connected to the purified water outlet 21 of the water purifier 19 , and the third water outlet end of the third valve 22 is connected to the water inlet of the water storage device 12 .

[0122] The controller also controls the third valve 22 to be turned on in response to the water storage amount being greater than the water storage amount lower limit threshold and the water storage amount being less than the water storage amount upper limit threshold.

[0123] When the water purification protection device 11 is used for the first time, the controller controls the third valve 22 to be turned on, and V1L of water is prepared by the water purifier 19 and stored in the water storage device 12 of the water purification protection device 11. Among them, V1 represents the volume of water when the water storage amount is equal to the lower limit threshold of the water amount.

[0124] When the user is not using the water purifier 19, if the water storage amount is less than the water level upper limit threshold, the controller will control the third valve 22 to be turned on, so that the water prepared by the water purifier 19 flows into the water inlet of the water storage device 12 through the purified water outlet 21, until the water storage amount is equal to the water level upper limit threshold, the controller controls the third valve 22 to be turned off, and stops injecting water into the water storage device 12.

[0125] It should be noted that after the water purifier 19 filters the water using the filter, the water flows out through the purified water outlet 21 to ensure that the water flowing into the water storage device 12 meets the water quality requirements.

[0126] In this embodiment, the water storage amount is greater than the lower limit threshold of the water volume and the water storage amount is less than the upper limit threshold of the water volume, and the third valve 22 is controlled to be turned on to inject water into the water storage device 12 to avoid the situation where the water storage amount is insufficient when water mixing is required. It has a high degree of intelligence. Compared with injecting water through the municipal water inlet pipe, the water quality of the water entering the water storage device is better, the generation of impurities such as scale is reduced, the water purifier 19 is protected, and the service life of the water purifier 19 is increased.

[0127] In one embodiment, the controller further adjusts the opening of the third valve 22 to zero in response to the water storage amount being equal to the water amount upper limit threshold.

[0128] When the water storage amount is equal to the upper water volume threshold, the water storage amount can meet the need for water mixing, and there is no need to inject water into the water storage device 12 . Therefore, it is necessary to control the third valve 22 to close and stop injecting water into the water storage device 12 .

[0129] In this embodiment, when the water storage amount is equal to the upper water volume threshold, the opening of the third valve 22 is adjusted, and the water injection into the water storage device 12 is automatically stopped when the water is full, thereby realizing intelligent management and avoiding waste of water resources.

[0130] In one embodiment, the clean water protection device 11 further includes: a filter device 23. The filter device 23 is disposed in the water mixing pipeline, and the water flowing out through the first end of the water mixing pipeline 13 is filtered by the filter device 23 and then flows out through the second end of the water mixing pipeline 13.

[0131] Considering that when the temperature in the household pipe 18 is too high, the water is more likely to breed bacteria, scale and other impurities, and the impurities generated will enter the water purifier 19, causing adverse effects on the water purifier 19, such as affecting the service life and water purification effect of the water purifier 19. Therefore, a filtering module is provided so that the water flowing out through the first end of the mixed water pipe 13 can be filtered by the filtering device 23 and then flow out from the second end of the mixed water pipe 13.

[0132] The filter device 23 is mainly used to filter out scale and bacteria. The filter element of the filter device 23 can be set according to actual conditions and is not particularly limited here.

[0133] In this embodiment, the filtering device 23 is used to filter the water in the mixed water pipeline 13, thereby improving the water quality of the water entering the water purifier 19, reducing the wear on the filter of the water purifier 19, and extending the service life of the water purifier 19.

[0134] In one embodiment, the water purification protection device 11 further includes a sterilization device. The sterilization device is disposed in the water storage device 12 and is electrically connected to the controller.

[0135] The controller also starts the sterilization device of the water storage device 12 in response to the storage time of the water in the water storage device 12 exceeding the preset time, and turns off the sterilization device after the sterilization continues for a sterilization time.

[0136] If the storage time of the water in the water storage device 12 exceeds the preset time, the water quality of the water in the water storage device 12 will deteriorate. To avoid the deterioration of the water quality, the controller starts the water storage device 12 after the storage time exceeds the preset time to sterilize the water in the water storage device 12. When the sterilization is continued for the sterilization time, it means that the sterilization is completed and the water quality of the water in the water storage device 12 meets the water quality requirements, and the sterilization device is turned off, thereby reducing unnecessary energy consumption.

[0137] The preset time and sterilization duration are set according to actual conditions and are not specifically limited here.

[0138] In this embodiment, after the storage time exceeds the preset time, the water in the water storage device 12 is sterilized to remove or reduce microbial contamination in the water and improve the water quality. The sterilization device is turned off after the sterilization is continued for the sterilization time. When the water quality has met the water quality requirements, turning off the sterilization device can meet actual needs, avoid waste of resources, and save energy.

[0139] In one embodiment, the water purification protection device 11 further includes: an alarm.

[0140] The liquid level sensor and the first temperature sensor 17 are electrically connected to the alarm respectively. In response to the water storage amount being less than the water amount lower limit threshold and the water inlet temperature being greater than the temperature threshold, the alarm issues a prompt to suspend use.

[0141] When the inlet water temperature collected by the first temperature sensor 17 is greater than the temperature threshold, it is necessary to use the water in the water storage device 12 to mix the water and cool it down. At this time, the water storage volume collected by the liquid level sensor is less than the lower limit threshold of the water volume. The water storage volume is insufficient and the mixing water effect cannot be guaranteed. In order to ensure that hot water greater than the temperature threshold does not flow into the water purifier 19, the alarm issues a prompt to suspend use, which is used to remind the user to suspend the use of the water purifier 19.

[0142] When the water inlet temperature is less than the temperature threshold or the water storage volume is greater than the water volume lower limit threshold, the alarm issues a prompt to resume use. If the water inlet temperature is less than the temperature threshold, it means that water mixing is not required and the water temperature entering the water purifier 19 is within the target temperature range. If the water storage volume is greater than the water volume lower limit threshold, it means that the water storage volume can achieve water mixing so that the water temperature entering the water purifier 19 is within the target temperature range. Since hot water greater than the temperature threshold will not flow into the water purifier 19, the alarm issues a prompt to resume use to remind the user that the water purifier 19 can be used.

[0143] In this embodiment, when the inlet water temperature is greater than the temperature threshold and the water storage volume is less than the lower water volume threshold, the alarm issues a prompt to suspend use, thereby preventing hot water from flowing into the water purifier 19 due to user use, preventing the water from breeding bacteria and producing scale due to high temperature, and increasing the service life of the water purifier 19.

[0144] In one embodiment, the water storage device 12 has a turbulent flow structure 24 therein.

[0145] The turbulent structure 24 is used to lengthen the path of water from the water storage device 12 from inflow to outflow. After the turbulent structure 24 is provided, the water flow in the water storage device 12 can be abstractly regarded as flowing in an S shape, disturbing the water flow inside the water storage device 12. Without the turbulent structure 24, water will flow out directly after flowing into the water storage device 12, and some water will stay in the water storage device 12 for a long time, thereby affecting the water quality.

[0146] The position and number of the turbulence structure 24 can be set according to actual conditions, and are not particularly limited here. The turbulence structure 24 includes but is not limited to a baffle. A hole can be opened on the baffle to appropriately reduce the water flow resistance. The number and position of the holes can be set according to actual conditions, and are not particularly limited here.

[0147] In this embodiment, the water storage device 12 has a turbulent structure 24, which can disturb the water flow inside the water storage device 12 to prevent part of the water from being retained in the water storage device 12 for a long time and affecting the water quality.

[0148] In one embodiment, a water pump is provided in the water storage device 12 .

[0149] When the inlet water temperature is greater than the temperature threshold and water mixing is required for cooling, a water pump is used to make the water in the water storage device 12 flow to the third water inlet end to achieve water mixing. The number, position and type of water pumps can be set according to actual conditions and are not particularly limited here.

[0150] In this embodiment, a water pump is provided in the water storage device 12, which can overcome gravity, lift the water in the water storage device 12 to a position higher than the water storage device 12, and transport it to the third water inlet end of the second valve, thereby enhancing the reliability and flexibility of water mixing.

[0151] Figure 3 The present invention is a flowchart of a control method of a water purification protection device 11 provided by an exemplary embodiment of the present invention.

[0152] The water purification protection device 11 includes: a water storage device 12, a water mixing pipeline 13, a water outlet 14, a first valve 15, a second valve 16, a liquid level sensor, a first temperature sensor 17 and a controller. The first valve 15 includes: a first water inlet end and a first water outlet end, and the second valve 16 includes: a second water inlet end, a third water inlet end and a second water outlet end.

[0153] The first water inlet end is used to connect to the household pipeline 18, and the first water outlet end is connected to one end of the mixed water pipeline 13; the second water inlet end is connected to the other end of the mixed water pipeline 13, the third water inlet end is connected to the water storage device 12, and the second water outlet end is connected to the water outlet 14 of the water purification protection device 11.

[0154] The water outlet 14 of the water purification protection device 11 is used to connect to the water inlet 20 of the water purifier 19. Therefore, the water in the household pipe 18 will be processed by the water purification protection device 11 and then flow into the water inlet 20 of the water purifier 19, which can prevent the water in the household pipe 18 from directly flowing into the water inlet 20 of the water purifier 19.

[0155] The first temperature sensor 17 and the liquid level sensor are both electrically connected to the controller. The liquid level sensor is arranged in the water storage device 12. The first temperature sensor 17 collects the inlet water temperature in the household pipeline 18 and sends the inlet water temperature to the controller. The liquid level sensor collects the water storage amount in the water storage device 12 and sends the water storage amount to the controller.

[0156] The liquid level sensor is electrically connected to the controller. The liquid level sensor is arranged in the water storage device 12, and is used to collect the water storage volume in the water storage device 12, and send the water storage volume to the controller. The setting position of the liquid level sensor can be selected according to the actual situation, and the number of liquid level sensors can also be selected according to the actual situation, and is not particularly limited here. If the volume of the water storage device 12 is large, multiple liquid level sensors can also be set to accurately collect the water storage volume in the water storage device 12, and the water storage volume collected by the multiple liquid level sensors will be sent to the controller. The controller averages the water storage volume collected by the multiple liquid level sensors to obtain a more accurate water storage volume. Multiple liquid level sensors can be distributed at different positions of the water storage device 12, and the distribution position and number of the liquid level sensors can be specifically set according to the actual situation, and are not particularly limited here.

[0157] The first temperature sensor 17 is electrically connected to the controller. The first temperature sensor 17 collects the inlet water temperature in the household pipe 18 and sends the inlet water temperature to the controller. The first temperature sensor 17 can be set near the first water inlet end of the first valve 15 to collect the inlet water temperature in the household pipe 18, or can be set at other places where the inlet water temperature can be collected. The specific setting can be based on actual conditions and is not particularly limited here.

[0158] The number and position of the first temperature sensor 17 can be set according to actual conditions and are not particularly limited here. In order to improve the accuracy of the inlet water temperature collection, multiple temperature sensors can be set, and the inlet water temperatures collected by the multiple temperature sensors are sent to the controller. The controller averages the inlet water temperatures collected by the multiple temperature sensors to obtain a more accurate inlet water temperature.

[0159] The control method of the water purification protection device 11 includes:

[0160] Step S101, obtaining water storage parameters.

[0161] The water storage parameters include: the water storage volume in the water storage device 12 and the water inlet temperature in the household pipeline 18 .

[0162] Step S102: Control the opening of the first valve 15 and / or the opening of the second valve 16 according to the water storage parameters so that the temperature of water entering the water purifier 19 is within the target temperature range.

[0163] The target temperature range can be selected according to the actual situation. The appropriate target temperature range can be selected by considering factors such as the correlation between bacteria generation and temperature and the temperature resistance of the filter material in the water purifier 19, and is not particularly limited here. For example, the higher the temperature, the easier it is for water to generate scale and bacteria, so a lower target temperature range needs to be set to avoid the generation of scale and bacteria. Assuming that the filter material has a tolerance temperature of 45°C, the target temperature range can be set below 45°C, for example, 35°C.

[0164] The openings of the first valve 15 and the second valve 16 are controlled according to the water storage parameters, so that the water in the water storage device 12 can be mixed with the water flowing into the household pipe 18, thereby realizing the function of mixing and cooling the water, so that the water temperature entering the water purifier 19 can be within the target temperature range, thereby preventing the water in the household pipe 18 from directly flowing into the water purifier 19.

[0165] In this embodiment, the opening of the first valve 15 and the opening of the second valve 16 are controlled based on the water storage parameters to ensure that the water temperature entering the water purifier 19 is within the target temperature range, thereby preventing hot water from flowing into the water inlet 20 of the water purifier 19 through the household pipe 18, preventing the water from breeding bacteria and producing scale due to high temperature, and improving the water purification effect and service life of the water purifier 19.

[0166] In one embodiment, the water storage parameters further include: the storage time of the water in the water storage device 12 .

[0167] Step S102 includes: in response to the water storage parameter satisfying the first preset condition, adjusting the opening of the first valve 15. In response to the water storage parameter satisfying the second preset condition and / or the water storage parameter satisfying the third preset condition, adjusting the opening of the second valve 16 to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11.

[0168] Adjusting the opening of the first valve 15 includes: reducing the opening of the first valve 15 to a target opening.

[0169] The first preset condition includes: the water inlet temperature is greater than the temperature threshold and the water storage volume is less than the water volume lower limit threshold. The second preset condition includes at least one of the following: the water storage volume is greater than or equal to the water volume upper limit threshold, the storage time is greater than the preset time, and the water inlet temperature is greater than the temperature threshold; the third preset condition includes: the water inlet temperature is greater than the temperature threshold, the water storage volume is greater than or equal to the water volume lower limit threshold, and the water storage volume is less than the water volume upper limit threshold.

[0170] The temperature threshold, the lower water volume threshold, the upper water volume threshold, the preset time and the target opening degree can be set according to actual conditions and are not particularly limited here.

[0171] When the water storage parameters meet the first preset condition, that is, when the water storage volume collected by the liquid level sensor is less than the lower limit threshold of the water volume, the first temperature sensor 17 detects that the water inlet temperature is greater than the temperature threshold, and reduces the opening of the first valve 15 to the target opening, thereby reducing the amount of water flowing in through the first valve 15, thereby protecting the water purifier 19.

[0172] If the inlet water temperature is greater than the temperature threshold, it means that water mixing and cooling is required. If the water storage volume is greater than or equal to the upper water volume threshold, it means that the current water volume can achieve water mixing. If the storage time is greater than the preset time, it means that the water in the water storage device 12 has not been used for a long time, and it is necessary to control the opening of the second valve 16 to mix the water so that the water in the water storage device 12 flows.

[0173] When the water storage parameters meet the second preset condition, assuming that the temperature threshold is 35°C, the first temperature sensor 17 detects that the water inlet temperature is greater than 35°C, and the water storage volume collected by the liquid level sensor is greater than or equal to the water volume upper limit threshold, water mixing and cooling are required. The controller controls the opening of the second valve 16 to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11, so that the water temperature entering the water purifier 19 is within the target temperature range.

[0174] When the water storage parameters meet the third preset condition, the water storage volume is greater than or equal to the lower limit threshold of the water volume and the water storage volume is less than the upper limit threshold of the water volume, that is, the water storage volume is between the lower limit threshold of the water volume and the upper limit threshold of the water volume. If the inlet water temperature is greater than the temperature threshold, water mixing and cooling are required. The controller controls the opening of the second valve 16 to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11, so that the water temperature entering the water purifier 19 is within the target temperature range.

[0175] It should be noted that if the water storage volume is less than the lower limit threshold of the water volume, it means that the current water storage volume is insufficient to achieve water mixing, and water mixing will not be performed, that is, the water storage device 12, the mixing water pipeline 13 and the water purification protection device 11 will not be connected.

[0176] In response to a user's water request, the water in the water storage device 12 is used preferentially. The controller is used to control the opening of the second valve 16 to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11, so that the water in the water storage device 12 flows out through the water outlet 14 to complete the replacement of the water in the water storage device 12.

[0177] Specifically, the openings of the second water inlet end and the third water inlet end of the second valve 16 are adjusted according to the mixing ratio of the water storage device 12 and the mixing water pipeline 13. The mixing ratio of the water storage device 12 and the mixing water pipeline 13 can be set according to actual conditions and is not particularly limited here. For different water purifiers 19, the mixing ratio can be set according to the water storage capacity per unit time of the water purifier 19 and the volume of the water storage device 12, rather than using the same mixing ratio for different water purifiers 19. For the same water purifier 19, the mixing ratio can be determined according to the water storage parameters, so that the water in the water storage device 12 will not be exhausted, but water circulation and mixed water cooling will be achieved.

[0178] Specifically, when the water storage amount collected by the liquid level sensor and the water inlet temperature detected by the first temperature sensor 17 meet the second preset condition, the opening of the second valve 16 is adjusted to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11, so as to achieve the purpose of mixing water and cooling.

[0179] The implementation of the second valve 16 includes, but is not limited to, an electric three-way valve, which can be specifically configured according to actual conditions and is not particularly limited herein.

[0180] In this embodiment, when the water storage parameters meet the first preset condition, the opening of the first valve 15 is reduced to the target opening. When the water storage parameters meet the second preset condition, the opening of the second valve 16 is adjusted to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11, so that the water temperature entering the water purifier 19 is within the target temperature range, avoiding the breeding of bacteria and the production of scale due to high temperature, thereby improving the water purification effect and service life of the water purifier 19.

[0181] In one embodiment, adjusting the opening of the first valve 15 further includes: adjusting the opening of the first valve 15 to zero, that is, closing the first valve 15 .

[0182] Specifically, when the water storage volume collected by the liquid level sensor is less than the water volume lower limit threshold and the first temperature sensor 17 detects that the water inlet temperature is greater than the temperature threshold, the opening of the first valve 15 is adjusted to zero, that is, the first valve 15 is closed to prevent hot water from flowing into the water purifier 19 through the first valve 15.

[0183] In this embodiment, when the inlet water temperature is greater than the temperature threshold and the water storage volume is less than the water volume lower limit threshold, the first valve 15 is closed to prevent hot water from flowing into the water purifier 19 through the first valve 15, thereby improving the water purification effect and service life of the water purifier 19.

[0184] In one embodiment, the water storage parameter also includes: the water storage level in the water storage device 12. The first preset condition also includes: the water storage level is less than the lower limit threshold of the liquid level. The second preset condition also includes: the water storage level is greater than or equal to the upper limit threshold of the liquid level. The third preset condition also includes: the water storage level is greater than or equal to the lower limit threshold of the liquid level and the water storage level is less than the upper limit threshold of the liquid level.

[0185] Among them, the upper limit threshold of the liquid level and the lower limit threshold of the liquid level can be set according to actual conditions and are not particularly limited here.

[0186] When the water storage parameters meet the first preset condition, that is, the water storage level collected by the liquid level sensor is less than the lower limit threshold of the liquid level and the first temperature sensor 17 detects that the water inlet temperature is greater than the temperature threshold, the opening of the first valve 15 is adjusted to reduce the amount of water flowing in through the first valve 15, thereby protecting the water purifier 19.

[0187] When the water storage parameters meet the second preset condition, that is, at least one of the water storage volume is greater than or equal to the water volume upper limit threshold, the storage time is greater than the preset time and the water inlet temperature is greater than the temperature threshold, the opening of the second valve 16 is adjusted to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11 to achieve the purpose of mixing water cooling.

[0188] When the water storage parameters meet the third preset condition, that is, when the water storage level collected by the liquid level sensor is greater than or equal to the lower limit threshold of the liquid level and less than the upper limit threshold of the liquid level, and the first temperature sensor 17 detects that the water inlet temperature is greater than the temperature threshold, the opening of the second valve 16 is adjusted to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11, so as to achieve the purpose of mixing water cooling.

[0189] In this embodiment, the water storage parameters also include the water storage level. According to the water storage level collected by the liquid level sensor, the opening of the second valve 16 is adjusted to ensure that the water temperature entering the water purifier 19 is within the target temperature range, thereby preventing bacteria and scale from breeding due to high temperature, thereby improving the water purification effect and service life of the water purifier 19.

[0190] In one embodiment, the water storage parameter further includes: the water storage temperature in the water storage device 12. A second temperature sensor is provided in the water storage device 12; the second temperature sensor is electrically connected to the controller, and the second temperature sensor is used to collect the water storage temperature and send the water storage temperature to the controller.

[0191] In order to improve the accuracy of water storage temperature collection, multiple temperature sensors can be set for water storage temperature, and multiple temperature sensors can be distributed at different positions in the water storage device 12. Multiple temperature sensors send the collected water storage temperature to the controller, and the controller averages the outlet water temperatures collected by the multiple temperature sensors to obtain a more accurate water storage temperature. The position and number of the second temperature sensor can be set according to actual conditions and are not particularly limited here.

[0192] Step S102 also includes: adjusting the opening of the second water inlet end and the third water inlet end of the second valve 16 according to the water storage temperature.

[0193] Among them, the opening degree of the second water inlet end is negatively correlated with the water inlet temperature, and the opening degree of the third water inlet end is positively correlated with the water storage temperature.

[0194] Specifically, the openings of the second water inlet end and the third water inlet end are determined according to the water inlet temperature detected by the first temperature sensor 17 and the water storage temperature detected by the second temperature sensor, thereby allocating the water flow of the second water inlet end and the third water inlet end so that the water temperature entering the water purifier 19 is within the target temperature range. If the water inlet temperature is higher, the opening of the second water inlet end is smaller, and vice versa, if the water inlet temperature is lower, the opening of the second water inlet end is larger. If the water storage temperature is higher, the opening of the third water inlet end is larger, and vice versa, if the water storage temperature is lower, the opening of the third water inlet end is smaller.

[0195] In this embodiment, a second temperature sensor is provided in the water storage device 12, and the openings of the second water inlet end and the third water inlet end of the second valve 16 are adjusted according to the water storage temperature and the water inlet temperature. The water in the mixing pipe 13 and the water in the water storage device 12 can be mixed so that the water temperature entering the water purifier 19 is within the target temperature range, thereby preventing bacteria and scale from breeding due to high temperature, thereby improving the water purification effect and service life of the water purifier 19.

[0196] In one embodiment, the purified water protection device 11 further includes a third valve 22 . The fourth water inlet of the third valve 22 is connected to the purified water outlet 21 of the water purifier 19 , and the third water outlet of the third valve 22 is connected to the water inlet of the water storage device 12 .

[0197] The control method of the water purification protection device 11 further includes: in response to the water storage amount being less than the water amount upper limit threshold, controlling the third valve 22 to be turned on.

[0198] When the water purification protection device 11 is used for the first time, the third valve 22 is controlled to be turned on, and V1L of water is prepared by the water purifier 19 and stored in the water storage device 12 of the water purification protection device 11. Among them, V1 represents the volume of water when the water storage amount is equal to the lower limit threshold of the water amount.

[0199] When the user is not using the water purifier 19, if the water storage amount is less than the upper limit threshold of the water level, the third valve 22 is controlled to be turned on, so that the water prepared by the water purifier 19 flows into the water inlet of the water storage device 12 through the purified water outlet 21, until the water storage amount is equal to the upper limit threshold of the water level, the third valve 22 is controlled to be turned off, and the injection of water into the water storage device 12 is stopped.

[0200] It should be noted that after the water purifier 19 filters the water using the filter, the water flows out through the purified water outlet 21 to ensure that the water flowing into the water storage device 12 meets the water quality requirements.

[0201] In this embodiment, when the water storage volume is less than the upper water volume threshold, the third valve 22 is controlled to be turned on to inject water into the water storage device 12, thereby avoiding the situation where the water storage volume is insufficient when water mixing is required, and the degree of intelligence is high.

[0202] In one embodiment, the control method of the water purification protection device 11 further includes: in response to the water storage amount reaching the upper limit threshold of the water amount, adjusting the opening of the third valve 22 to zero.

[0203] When the water storage amount is equal to the upper water volume threshold, the water storage amount can meet the need for mixing water, and there is no need to inject water into the water storage device 12. Therefore, it is necessary to adjust the opening of the third valve 22 to zero, that is, control the third valve 22 to close, and stop injecting water into the water storage device 12.

[0204] In this embodiment, when the water storage amount is equal to the upper water volume threshold, the opening of the third valve 22 is adjusted, and the water injection into the water storage device 12 is automatically stopped when the water is full, thereby realizing intelligent management and avoiding waste of water resources.

[0205] In one embodiment, the water purification protection device 11 further includes: a filtering device 23, which is disposed in the water storage device 12. The water flowing out through the first end of the mixing water pipeline 13 is filtered by the filtering device 23 and then flows out through the second end of the mixing water pipeline 13.

[0206] Considering that when the temperature in the household pipe 18 is too high, the water is more likely to breed bacteria, scale and other impurities, and the impurities generated will enter the water purifier 19, causing adverse effects on the water purifier 19, such as affecting the service life and water purification effect of the water purifier 19. Therefore, a filtering module is provided so that the water flowing out through the first end of the mixed water pipe 13 can be filtered by the filtering device 23 and then flow out from the second end of the mixed water pipe 13.

[0207] The filter device 23 is mainly used to filter out scale and bacteria. The filter element of the filter device 23 can be set according to actual conditions and is not particularly limited here.

[0208] In this embodiment, the filtering device 23 is used to filter the water in the mixed water pipeline 13, thereby improving the water quality of the water entering the water purifier 19, reducing the wear on the filter of the water purifier 19, and extending the service life of the water purifier 19.

[0209] In one embodiment, the water purification protection device 11 further includes: a sterilization device, which is disposed in the water storage device 12 and is electrically connected to the controller.

[0210] The control method of the water purification protection device 11 also includes: in response to the storage time of water in the water storage device 12 exceeding a preset time, starting the sterilization device of the water storage device 12, and shutting down the sterilization device after continuous sterilization reaches the sterilization time.

[0211] If the storage time of the water in the water storage device 12 exceeds the preset time, the water quality of the water in the water storage device 12 will deteriorate. To avoid the deterioration of the water quality, the controller starts the water storage device 12 after the storage time exceeds the preset time to sterilize the water in the water storage device 12. When the sterilization is continued for the sterilization time, it means that the sterilization is completed and the water quality of the water in the water storage device 12 meets the water quality requirements, and the sterilization device is turned off, thereby reducing unnecessary energy consumption.

[0212] The preset time and sterilization duration are set according to actual conditions and are not specifically limited here.

[0213] In this embodiment, after the storage time exceeds the preset time, the water in the water storage device 12 is sterilized to remove or reduce microbial contamination in the water and improve the water quality. The sterilization device is turned off after the sterilization is continued for the sterilization time. When the water quality has met the water quality requirements, turning off the sterilization device can meet actual needs, avoid waste of resources, and save energy.

[0214] In one embodiment, the water purification protection device 11 further includes: an alarm, and the liquid level sensor and the first temperature sensor 17 are electrically connected to the alarm respectively.

[0215] The control method of the water purification protection device 11 also includes: in response to the water storage amount being less than the water amount lower limit threshold and the water inlet temperature being greater than the temperature threshold, the alarm issues a prompt to suspend use.

[0216] When the inlet water temperature collected by the first temperature sensor 17 is greater than the temperature threshold, it is necessary to use the water in the water storage device 12 to mix the water and cool it down. At this time, the water storage volume collected by the liquid level sensor is less than the lower limit threshold of the water volume. The water storage volume is insufficient and the mixing water effect cannot be guaranteed. In order to ensure that hot water greater than the temperature threshold does not flow into the water purifier 19, the alarm issues a prompt to suspend use, which is used to remind the user to suspend the use of the water purifier 19.

[0217] When the water inlet temperature is less than the temperature threshold or the water storage volume is greater than the water volume lower limit threshold, the alarm issues a prompt to resume use. If the water inlet temperature is less than the temperature threshold, it means that water mixing is not required and the water temperature entering the water purifier 19 is within the target temperature range. If the water storage volume is greater than the water volume lower limit threshold, it means that the water storage volume can achieve water mixing so that the water temperature entering the water purifier 19 is within the target temperature range. Since hot water greater than the temperature threshold will not flow into the water purifier 19, the alarm issues a prompt to resume use to remind the user that the water purifier 19 can be used.

[0218] In this embodiment, when the inlet water temperature is greater than the temperature threshold and the water storage volume is less than the lower water volume threshold, the alarm issues a prompt to suspend use, thereby preventing hot water from flowing into the water purifier 19 due to user use, preventing the water from breeding bacteria and producing scale due to high temperature, and increasing the service life of the water purifier 19.

[0219] In one embodiment, the water storage device 12 has a turbulent flow structure 24 therein.

[0220] The turbulent structure 24 is used to lengthen the path of water from the water storage device 12 from inflow to outflow. After the turbulent structure 24 is provided, the water flow in the water storage device 12 can be abstractly regarded as flowing in an S shape, disturbing the water flow inside the water storage device 12. Without the turbulent structure 24, water will flow out directly after flowing into the water storage device 12, and some water will stay in the water storage device 12 for a long time, thereby affecting the water quality.

[0221] The position and number of the turbulence structure 24 can be set according to actual conditions, and are not particularly limited here. The turbulence structure 24 includes but is not limited to a baffle. A hole can be opened on the baffle to appropriately reduce the water flow resistance. The number and position of the holes can be set according to actual conditions, and are not particularly limited here.

[0222] In this embodiment, the water storage device 12 has a turbulent structure 24, which can disturb the water flow inside the water storage device 12 to prevent part of the water from being retained in the water storage device 12 for a long time and affecting the water quality.

[0223] In one embodiment, a water pump is provided in the water storage device 12 .

[0224] When the inlet water temperature is greater than the temperature threshold and water mixing is required for cooling, a water pump is used to make the water in the water storage device 12 flow to the third water inlet end to achieve water mixing. The number, position and type of water pumps can be set according to actual conditions and are not particularly limited here.

[0225] In this embodiment, a water pump is provided in the water storage device 12, which can overcome gravity, lift the water in the water storage device 12 to a position higher than the water storage device 12, and transport it to the third water inlet end of the second valve, thereby enhancing the reliability and flexibility of water mixing.

[0226] Corresponding to the aforementioned control method embodiment of the water purification protection device 11 , the present disclosure also provides an embodiment of a control system of the water purification protection device 11 .

[0227] Figure 4 A schematic diagram of a control system of a water purification protection device 11 provided by an exemplary embodiment of the present disclosure, wherein the water purification protection device 11 comprises: a water storage device 12, a water mixing pipeline 13, a water outlet 14, a first valve 15, a second valve 16, a liquid level sensor, a first temperature sensor 17 and a controller; the first valve 15 comprises: a first water inlet end and a first water outlet end, and the second valve 16 comprises: a second water inlet end, a third water inlet end and a second water outlet end;

[0228] The first water inlet end is used to connect to the household pipe 18, and the first water outlet end is connected to one end of the mixed water pipe 13; the second water inlet end is connected to the other end of the mixed water pipe 13, the third water inlet end is connected to the water storage device 12, and the second water outlet end is connected to the water outlet 14 of the water purification protection device 11; the water outlet 14 is used to connect to the water inlet 20 of the water purifier 19;

[0229] The first temperature sensor 17 and the liquid level sensor are both electrically connected to the controller, and the liquid level sensor is disposed in the water storage device 12; the first temperature sensor 17 collects the inlet water temperature in the household pipe 18 and sends the inlet water temperature to the controller, and the liquid level sensor collects the water storage amount in the water storage device 12 and sends the water storage amount to the controller;

[0230] The control system of the water purification protection device 11 includes:

[0231] The parameter acquisition module 41 is used to acquire water storage parameters; wherein the water storage parameters include: the water storage volume in the water storage device 12 and the water inlet temperature in the household pipe 18;

[0232] The control module 42 is used to control the opening of the first valve 15 and / or the opening of the second valve 16 according to the water storage parameters, so that the temperature of the water entering the water purifier 19 is within the target temperature range.

[0233] Optionally, the water storage parameter also includes: the storage time of the water in the water storage device 12; the control module 42 includes:

[0234] In response to the water storage parameter satisfying the first preset condition, adjusting the opening of the first valve 15; adjusting the opening of the first valve 15 includes: reducing the opening of the first valve 15 to a target opening or adjusting the opening of the first valve 15 to zero;

[0235] In response to the water storage parameter satisfying the second preset condition and / or the water storage parameter satisfying the third preset condition, adjusting the opening of the second valve 16 to connect the water storage device 12, the mixing water pipeline 13 and the water outlet 14 of the water purification protection device 11;

[0236] The first preset condition includes: the water inlet temperature is greater than the temperature threshold and the water storage capacity is less than the water volume lower limit threshold; the second preset condition includes at least one of the following: the water storage capacity is greater than or equal to the water volume upper limit threshold, the storage time is greater than the preset time and the water inlet temperature is greater than the temperature threshold; the third preset condition includes: the water inlet temperature is greater than the temperature threshold, the water storage capacity is greater than or equal to the water volume lower limit threshold and the water storage capacity is less than the water volume upper limit threshold.

[0237] Optionally, the water storage parameter also includes: the water storage temperature in the water storage device 12; a second temperature sensor is provided in the water storage device 12; the second temperature sensor is electrically connected to the controller, and the second temperature sensor is used to collect the water storage temperature and send the water storage temperature to the controller;

[0238] The control module 42 further includes:

[0239] adjusting the opening of the second water inlet end and the third water inlet end of the second valve 16 according to the water storage temperature;

[0240] Among them, the opening degree of the second water inlet end is negatively correlated with the water inlet temperature, and the opening degree of the third water inlet end is positively correlated with the water storage temperature.

[0241] Optionally, the purified water protection device 11 further includes: a third valve 22; a fourth water inlet end of the third valve 22 is connected to the purified water outlet 21 of the water purifier 19, and a third water outlet end of the third valve 22 is connected to the water inlet of the water storage device 12;

[0242] The control system of the water purification protection device 11 also includes:

[0243] The third valve control module 42 is used to control the third valve 22 to be turned on in response to the water storage amount being less than the water upper limit threshold;

[0244] Or, it is used to adjust the opening of the third valve 22 to zero in response to the water storage amount reaching the upper water amount threshold.

[0245] Optionally, the water purification protection device 11 further includes: a filtering device 23, the filtering device 23 is arranged in the water storage device 12, and the water flowing out through the first end of the mixed water pipeline 13 is filtered by the filtering device 23 and then flows out through the second end of the mixed water pipeline 13;

[0246] And / or, the water purification protection device 11 further includes: a sterilization device, the sterilization device is arranged in the water storage device 12, and the sterilization device is electrically connected to the controller;

[0247] The control system of the water purification protection device 11 also includes:

[0248] A sterilization module, for starting a sterilization device of the water storage device 12 in response to the storage time of the water in the water storage device 12 exceeding a preset time, and shutting down the sterilization device after the sterilization continues for a sterilization time;

[0249] And / or, the water purification protection device 11 further includes: an alarm, the liquid level sensor and the first temperature sensor 17 are electrically connected to the alarm respectively;

[0250] The control system of the water purification protection device 11 also includes:

[0251] The alarm module is used to respond to the water storage volume being less than the water volume lower limit threshold and the water inlet temperature being greater than the temperature threshold, and the alarm issues a prompt to suspend use.

[0252] In this embodiment, the opening of the first valve 15 and the opening of the second valve 16 are controlled based on the water storage parameters to ensure that the water temperature entering the water purifier 19 is within the target temperature range, thereby preventing hot water from flowing into the water inlet 20 of the water purifier 19 through the household pipe 18, preventing the water from breeding bacteria and producing scale due to high temperature, and improving the water purification effect and service life of the water purifier 19.

[0253] As for the system embodiment, since it basically corresponds to the method embodiment, the relevant parts can refer to the partial description of the method embodiment. The system embodiment described above is only illustrative, in which the units described as separate components may or may not be physically separated, and the components as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the disclosed solution.

[0254] 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 may make various changes or modifications to these embodiments without departing from the principles and essence of the present disclosure, but these changes and modifications all fall within the protection scope of the present disclosure.

Claims

1. A water purification protection device, characterized in that: The water purification protection device comprises: a water storage device, a water mixing pipeline, a water outlet, a first valve, a second valve, a liquid level sensor, a first temperature sensor and a controller; the first valve comprises: a first water inlet end and a first water outlet end, and the second valve comprises: a second water inlet end, a third water inlet end and a second water outlet end; The first water inlet is used to connect to the household pipeline, the first water outlet is connected to one end of the mixed water pipeline; the second water inlet is connected to the other end of the mixed water pipeline, the third water inlet is connected to the water storage device, and the second water outlet is connected to the water outlet of the water purification protection device; the water outlet is used to connect to the water inlet of the water purifier; The first temperature sensor and the liquid level sensor are both electrically connected to the controller, and the liquid level sensor is disposed in the water storage device; the first temperature sensor collects the inlet water temperature in the household pipe and sends the inlet water temperature to the controller, and the liquid level sensor collects the water storage volume in the water storage device and sends the water storage volume to the controller; The controller is used to control the opening of the first valve and / or the opening of the second valve according to water storage parameters so that the temperature of water entering the water purifier is within a target temperature range; wherein the water storage parameters include the water inlet temperature and the water storage capacity.

2. The water purification protection device according to claim 1, characterized in that: The water storage parameters also include: the storage time of the water in the water storage device; In response to the water storage parameter satisfying the first preset condition, the controller is used to adjust the opening of the first valve; the adjusting the opening of the first valve includes: reducing the opening of the first valve to a target opening or adjusting the opening of the first valve to zero; In response to the water storage parameter satisfying the second preset condition and / or the water storage parameter satisfying the third preset condition, the controller is used to adjust the opening of the second valve so that the water storage device, the mixing water pipeline and the water outlet of the water purification protection device are connected; The first preset condition includes: the water inlet temperature is greater than the temperature threshold and the water storage capacity is less than the water lower limit threshold; the second preset condition includes at least one of the following: the water storage capacity is greater than or equal to the water upper limit threshold, the storage time is greater than the preset time and the water inlet temperature is greater than the temperature threshold; the third preset condition includes: the water inlet temperature is greater than the temperature threshold, the water storage capacity is greater than or equal to the water lower limit threshold and the water storage capacity is less than the water upper limit threshold.

3. The water purification protection device according to claim 1, characterized in that: The water storage parameters also include: the water storage temperature in the water storage device; a second temperature sensor is provided in the water storage device, the second temperature sensor is electrically connected to the controller, and the second temperature sensor is used to collect the water storage temperature and send the water storage temperature to the controller; The controller is used to receive the water storage temperature collected by the second temperature sensor and adjust the opening of the second water inlet end and the third water inlet end of the second valve; Among them, the opening degree of the second water inlet end is negatively correlated with the water inlet temperature, and the opening degree of the third water inlet end is positively correlated with the water storage temperature.

4. The water purification protection device according to claim 2, characterized in that: The purified water protection device further comprises: a third valve; a fourth water inlet end of the third valve is connected to the purified water outlet of the water purifier, and a third water outlet end of the third valve is connected to the water inlet of the water storage device; The controller also controls the third valve to be turned on in response to the water storage amount being less than the water volume upper limit threshold; or, the controller also adjusts the opening of the third valve to zero in response to the water storage amount being equal to the water volume upper limit threshold.

5. The water purification protection device according to any one of claims 1 to 4, characterized in that: The water purification protection device also includes: A filter device, wherein the filter device is disposed in the mixed water pipeline, and the water flowing out through the first end of the mixed water pipeline is filtered by the filter device and then flows out through the second end of the mixed water pipeline; And / or, a sterilization device, the sterilization device is arranged in the water storage device, and the sterilization device is electrically connected to the controller; the controller also starts the sterilization device of the water storage device in response to the storage time of the water in the water storage device exceeding the preset time, and turns off the sterilization device after the sterilization continues for a sterilization time; And / or, an alarm, the liquid level sensor and the temperature sensor are electrically connected to the alarm respectively; the alarm issues a prompt to suspend use in response to the water storage amount being less than the water amount lower limit threshold and the water inlet temperature being greater than the temperature threshold; And / or, the water storage device has a turbulent flow structure therein.

6. A control method for a water purification protection device, characterized in that: The water purification protection device comprises: a water storage device, a water mixing pipeline, a water outlet, a first valve, a second valve, a liquid level sensor, a first temperature sensor and a controller; the first valve comprises: a first water inlet end and a first water outlet end, and the second valve comprises: a second water inlet end, a third water inlet end and a second water outlet end; The first water inlet is used to connect to the household pipeline, the first water outlet is connected to one end of the mixed water pipeline; the second water inlet is connected to the other end of the mixed water pipeline, the third water inlet is connected to the water storage device, and the second water outlet is connected to the water outlet of the water purification protection device; the water outlet is used to connect to the water inlet of the water purifier; The first temperature sensor and the liquid level sensor are both electrically connected to the controller, and the liquid level sensor is disposed in the water storage device; the first temperature sensor collects the inlet water temperature in the household pipe and sends the inlet water temperature to the controller, and the liquid level sensor collects the water storage volume in the water storage device and sends the water storage volume to the controller; The control method of the water purification protection device comprises: Acquire water storage parameters; wherein the water storage parameters include: the water storage volume in the water storage device and the water inlet temperature in the household pipeline; The opening of the first valve and / or the opening of the second valve is controlled according to the water storage parameter so that the temperature of water entering the water purifier is within a target temperature range.

7. The control method of the water purification protection device according to claim 6, characterized in that: The water storage parameter also includes: the storage time of the water in the water storage device; and controlling the opening of the first valve and the opening of the second valve according to the water storage parameter includes: In response to the water storage parameter satisfying the first preset condition, adjusting the opening of the first valve; the adjusting the opening of the first valve includes: reducing the opening of the first valve to a target opening or adjusting the opening of the first valve to zero; In response to the water storage parameter satisfying the second preset condition and / or the water storage parameter satisfying the third preset condition, adjusting the opening of the second valve to connect the water storage device, the mixing water pipeline and the water outlet of the water purification protection device; The first preset condition includes: the water inlet temperature is greater than the temperature threshold and the water storage capacity is less than the water lower limit threshold; the second preset condition includes at least one of the following: the water storage capacity is greater than or equal to the water upper limit threshold, the storage time is greater than the preset time and the water inlet temperature is greater than the temperature threshold; the third preset condition includes: the water inlet temperature is greater than the temperature threshold, the water storage capacity is greater than or equal to the water lower limit threshold and the water storage capacity is less than the water upper limit threshold.

8. The control method of the water purification protection device according to claim 6, characterized in that: The water storage parameters also include: the water storage temperature in the water storage device; a second temperature sensor is provided in the water storage device; the second temperature sensor is electrically connected to the controller, and the second temperature sensor is used to collect the water storage temperature and send the water storage temperature to the controller; The step of controlling the opening of the first valve and the opening of the second valve according to the water storage parameter further comprises: adjusting the openings of the second water inlet end and the third water inlet end of the second valve according to the stored water temperature; Among them, the opening degree of the second water inlet end is negatively correlated with the water inlet temperature, and the opening degree of the third water inlet end is positively correlated with the water storage temperature.

9. The control method of the water purification protection device according to claim 7, characterized in that: The purified water protection device further comprises: a third valve; a fourth water inlet end of the third valve is connected to the purified water outlet of the water purifier, and a third water outlet end of the third valve is connected to the water inlet of the water storage device; The control method of the water purification protection device also includes: In response to the water storage amount being less than an upper water amount threshold, controlling the third valve to be turned on; Or, in response to the water storage amount reaching the water amount upper limit threshold, the opening of the third valve is adjusted to zero.

10. The control method of the water purification protection device according to any one of claims 6 to 9, characterized in that: The water purification protection device further comprises: a sterilization device, the sterilization device is arranged in the water storage device, and the sterilization device is electrically connected to the controller; The control method of the water purification protection device also includes: In response to the storage time of the water in the water storage device exceeding the preset time, the sterilization device of the water storage device is started, and the sterilization device is turned off after the sterilization is continued for a sterilization time.

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