Water purification supply system and its control method

Abstract

This invention discloses a water purification supply system and its control method, relating to the field of water treatment technology. The water purification supply system includes: a fine filtration unit with a purified water outlet; a booster pump; a heating tank with an inlet and an outlet, the inlet of which is connected to the purified water outlet, and the heating tank is used to receive and heat the purified water produced by the fine filtration unit for storage; a room temperature water output path connected to the purified water outlet; a hot water output path connected to the outlet of the heating tank, equipped with a first outlet control valve; and a controller for acquiring a target outlet water temperature. When the target outlet water temperature is less than or equal to a first preset value, the controller adjusts the water flow rate of the room temperature water output path and the water flow rate of the hot water output path according to the target outlet water temperature, thereby regulating the mixing ratio of room temperature water output from the room temperature water output path and hot water output from the hot water output path. This application enables a wider range of outlet water temperature adjustment.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, and in particular to a water purification supply system and its control method. Background Technology

[0002] As people's living standards improve, water purification systems are gradually becoming more common in daily life, allowing people to drink purified water that has been filtered and heated by these systems. Generally, to provide boiled purified water, an existing water purification system includes a heating tank. This tank boils and stores the purified water filtered by the system, and then supplies it to users when needed, providing them with hot, boiled purified water. Alternatively, the system can directly supply users with room-temperature purified water filtered by the system, providing them with room-temperature purified water.

[0003] To obtain purified water at other temperatures, the aforementioned water supply system can simultaneously output high-temperature purified water from the heating tank and room-temperature purified water filtered by the water supply system to provide users with purified water at a certain intermediate temperature. In this way, the water supply system can output purified water at three different temperatures. However, with increasing demands, such as users needing purified water at more different temperatures for making tea, coffee, or milk, some have proposed adjusting the flow rate of the centrifugal pump used to output the high-temperature purified water from the heating tank. This method, by simultaneously outputting the reduced-flow-rate high-temperature purified water from the heating tank and the room-temperature purified water filtered by the water supply system, can obtain purified water at a certain temperature. However, this temperature range is limited to a range below the aforementioned intermediate temperature, and if the centrifugal pump is frequency-controlled, its lifespan will be significantly shortened, making it prone to damage. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a water purification supply system and its control method, which can achieve a wider range of adjustment of the outlet water temperature.

[0005] The specific technical solution of this invention is as follows:

[0006] A water purification supply system, the water purification supply system comprising:

[0007] A fine filtration unit, wherein the fine filtration unit has a purified water outlet;

[0008] A booster pump, used to pressurize the fine filtration unit;

[0009] A hot tank having an inlet and an outlet, the inlet of which is connected to the purified water outlet, the hot tank being used to receive purified water produced by the fine filtration unit and heat and store it;

[0010] A normal temperature water output channel is provided, which is connected to the purified water outlet.

[0011] A hot water output circuit is provided, which is connected to the outlet of the hot water tank, and a first outlet control valve is provided on the hot water output circuit.

[0012] The controller is used to obtain the target outlet water temperature. When the target outlet water temperature is less than or equal to a first preset value, the controller controls the booster pump and the first outlet water control valve to adjust the water flow rate of the room temperature water output circuit and the water flow rate of the hot water output circuit respectively according to the target outlet water temperature, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit.

[0013] Preferably, the controller is further configured to control the first outlet control valve according to the target outlet water temperature when the target outlet water temperature is less than or equal to the second preset value, thereby adjusting the water flow rate of the hot water output circuit, thereby regulating the mixing ratio of the room temperature water output by the room temperature water output circuit and the hot water output by the hot water output circuit.

[0014] The second preset value is less than the first preset value.

[0015] Preferably, a second outlet control valve is provided on the ambient temperature water output line;

[0016] The controller is also used to control the booster pump and the second outlet control valve according to the target outlet water temperature when the target outlet water temperature is greater than or equal to the third preset value, so as to adjust the water flow rate of the room temperature water output circuit, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit.

[0017] The third preset value is greater than or equal to the first preset value.

[0018] Preferably, when the target outlet water temperature is less than or equal to the first preset value, the second outlet water control valve is fully opened, and the booster pump and the first outlet water control valve are adjusted according to the target outlet water temperature to regulate the water flow rate of the room temperature water output circuit and the water flow rate of the hot water output circuit, thereby regulating the mixing ratio of the room temperature water output from the room temperature water output circuit and the hot water output from the hot water output circuit.

[0019] When the target outlet water temperature is less than or equal to the second preset value, the second outlet water control valve and the booster pump are fully opened. The first outlet water control valve is controlled according to the target outlet water temperature to adjust the water flow rate of the hot water output circuit, thereby regulating the mixing ratio of room temperature water output from the room temperature water output circuit and hot water output from the hot water output circuit.

[0020] Preferably, when the target outlet water temperature is greater than or equal to a third preset value, the first outlet water control valve is fully opened, and the booster pump and the second outlet water control valve are controlled according to the target outlet water temperature to adjust the water flow rate of the room temperature water output circuit, thereby regulating the mixing ratio of room temperature water output from the room temperature water output circuit and hot water output from the hot water output circuit.

[0021] Preferably, the duty cycle of the booster pump has a rated minimum value.

[0022] Preferably, the controller controls the duty cycle of the booster pump to adjust the water flow rate of the ambient temperature water output path.

[0023] Preferably, the first water outlet control valve is a solenoid valve, and the controller controls the duty cycle of the first water outlet control valve to adjust the water flow rate of the hot water output circuit;

[0024] or,

[0025] The first water outlet control valve is an electric valve. The controller controls the first water outlet control valve to repeatedly open and close within a cycle, thereby controlling the proportion of the open state time within a cycle, and thus adjusting the water flow of the hot water output circuit.

[0026] or,

[0027] The first water outlet control valve is a proportional valve, and the size of the flow orifice of the proportional valve is adjusted by a motor to regulate the water flow of the hot water output circuit.

[0028] Preferably, the water purification supply system further includes:

[0029] The first temperature detection unit is used to detect the first temperature of the water flowing through the ambient temperature water output channel.

[0030] The controller is also used to acquire the first temperature, and when the target outlet water temperature is less than or equal to a first preset value, to control the booster pump and the first outlet water control valve to adjust the water flow rate of the room temperature water output circuit and the water flow rate of the hot water output circuit respectively according to the target outlet water temperature and the first temperature, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit.

[0031] Preferably, a second outlet control valve is provided on the ambient temperature water output line;

[0032] The controller is also used to control the first water outlet control valve according to the target water outlet temperature and the first temperature when the target water outlet temperature is less than or equal to the second preset value, so as to adjust the water flow rate of the hot water output circuit, thereby regulating the mixing ratio of the room temperature water output by the room temperature water output circuit and the hot water output by the hot water output circuit.

[0033] The second preset value is less than the first preset value.

[0034] Preferably, a second outlet control valve is provided on the ambient temperature water output line;

[0035] The controller is also used to control the booster pump and the second outlet control valve according to the target outlet water temperature and the first temperature when the target outlet water temperature is greater than or equal to the third preset value, so as to adjust the water flow rate of the room temperature water output circuit, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit.

[0036] The third preset value is greater than or equal to the first preset value.

[0037] Preferably, the controller is further configured to control the booster pump and the second outlet control valve according to the target outlet water temperature and the first temperature when the target outlet water temperature is greater than or equal to the third preset value, so as to adjust the water flow rate of the room temperature water output circuit, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit.

[0038] The third preset value is greater than or equal to the first preset value.

[0039] Preferably, a flow detection device is provided on the room temperature water output path, and the flow detection device is used to detect the first flow rate of the water flowing through the room temperature water output path;

[0040] The controller is also configured to acquire the first flow rate and adjust the booster pump according to the first flow rate so that the first flow rate conforms to a first relationship, the first relationship including the target outlet water temperature and the correspondence between the first temperature and the first flow rate.

[0041] Preferably, a flow detection device is provided on the room temperature water output path, and the flow detection device is used to detect the first flow rate of the water flowing through the room temperature water output path;

[0042] The controller is also used to acquire the first flow rate, and when the target outlet water temperature is less than or equal to a first preset value, to control the booster pump and the first outlet water control valve to adjust the water flow rate of the room temperature water output circuit and the water flow rate of the hot water output circuit respectively according to the target outlet water temperature, the first temperature and the first flow rate, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit.

[0043] Preferably, a second outlet control valve is provided on the ambient temperature water output line;

[0044] The controller is used to control the first outlet control valve to adjust the water flow of the hot water output circuit according to the target outlet water temperature, the first temperature and the first flow when the target outlet water temperature is less than or equal to the second preset value, thereby regulating the mixing ratio of the room temperature water output by the room temperature water output circuit and the hot water output by the hot water output circuit.

[0045] The second preset value is less than the first preset value.

[0046] Preferably, the controller is used to control the second outlet control valve to adjust the water flow rate of the room temperature water output circuit according to the target outlet water temperature, the first temperature and the first flow rate when the target outlet water temperature is greater than or equal to the third preset value, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit.

[0047] The third preset value is greater than or equal to the first preset value.

[0048] Preferably, a second outlet control valve is provided on the ambient temperature water output line;

[0049] The water purification supply system also includes:

[0050] The second temperature detection unit is used to detect the second temperature of the water flowing through the hot water output path or the water in the hot water tank.

[0051] The controller is also used to acquire the second temperature. When the target outlet water temperature is less than or equal to the first preset value, the controller controls the booster pump and the first outlet water control valve to adjust the water flow rate of the room temperature water output circuit according to the target outlet water temperature, the first temperature and the second temperature, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit.

[0052] When the target outlet water temperature is less than or equal to the second preset value, the booster pump and the second outlet water control valve are controlled according to the target outlet water temperature, the first temperature and the second temperature to adjust the water flow rate of the room temperature water output circuit, and the first outlet water control valve is controlled to adjust the water flow rate of the hot water output circuit, thereby regulating the mixing ratio of room temperature water output from the room temperature water output circuit and hot water output from the hot water output circuit.

[0053] When the target outlet water temperature is greater than or equal to the third preset value, the booster pump and the second outlet water control valve are controlled according to the target outlet water temperature, the first temperature and the second temperature to adjust the water flow rate of the room temperature water output circuit, thereby regulating the mixing ratio of the room temperature water output by the room temperature water output circuit and the hot water output by the hot water output circuit.

[0054] Preferably, a flow detection device is provided on the room temperature water output path, and the flow detection device is used to detect the first flow rate of the water flowing through the room temperature water output path;

[0055] The controller is also used to acquire the first flow rate and adjust the booster pump and the second outlet control valve according to the first flow rate so that the first flow rate conforms to a second relationship, the second relationship including the target outlet temperature and the correspondence between the first temperature and the first flow rate.

[0056] Preferably, the second water outlet control valve is a solenoid valve, and the controller controls the duty cycle of the second water outlet control valve to adjust the water flow rate of the ambient temperature water output path;

[0057] or,

[0058] The second water outlet control valve is an electric valve. The controller controls the second water outlet control valve to repeatedly open and close within one cycle, thereby controlling the proportion of the open state time in one cycle, and thus adjusting the water flow of the normal temperature water output channel.

[0059] or,

[0060] The second outlet control valve is a proportional valve, and the size of the flow orifice of the proportional valve is adjusted by a motor to adjust the water flow of the normal temperature water output channel.

[0061] Preferably, the water purification supply system further includes:

[0062] A water output mechanism, which is connected to the ambient temperature water output path and the hot water output path.

[0063] Preferably, a water supply valve is connected between the hot tank and the purified water outlet of the fine filtration unit.

[0064] Preferably, the water purification supply system includes:

[0065] A water pump is used to drive the water in the hot water tank to the hot water output circuit.

[0066] The controller is used to control the water pump to start when the hot water output circuit needs to output hot water, so that the hot water output circuit outputs hot water at a preset constant flow rate.

[0067] A control method for a water purification supply system, the control method comprising:

[0068] Obtain the target outlet water temperature and determine the temperature range to which the target outlet water temperature belongs;

[0069] The corresponding control method is executed according to the temperature range to which the target outlet water temperature belongs, so as to regulate the mixing ratio of room temperature water output from the room temperature water output channel and hot water output from the hot water output channel.

[0070] Preferably, the step involves executing a corresponding control method based on the temperature range to which the target outlet water temperature belongs, including:

[0071] When the target outlet water temperature is less than or equal to the first preset value, the booster pump and the first outlet water control valve are controlled to adjust the water flow rate of the normal temperature water output circuit and the water flow rate of the hot water output circuit, respectively, according to the target outlet water temperature.

[0072] Preferably, when the target outlet water temperature is less than or equal to the first preset value, the second outlet water control valve is controlled to be in a fully open state.

[0073] Preferably, the step of executing a corresponding control method based on the temperature range to which the target outlet water temperature belongs further includes:

[0074] When the target outlet water temperature is less than or equal to the second preset value, the first outlet water control valve is controlled according to the target outlet water temperature to adjust the water flow rate of the hot water output circuit.

[0075] The second preset value is less than the first preset value.

[0076] Preferably, when the target outlet water temperature is less than or equal to the second preset value, the duty cycle of the booster pump is controlled at 100%, and the second outlet water control valve is in a fully open state.

[0077] Preferably, the step of executing a corresponding control method based on the temperature range to which the target outlet water temperature belongs further includes:

[0078] When the target outlet water temperature is greater than or equal to the third preset value, the booster pump and the second outlet water control valve are controlled according to the target outlet water temperature to adjust the water flow rate of the normal temperature water output channel.

[0079] Preferably, when the target outlet water temperature is greater than or equal to a third preset value, the first outlet water control valve is controlled to be in a fully open state.

[0080] Preferably, the control method for the water purification supply system further includes:

[0081] Obtain the first temperature of the water flowing through the ambient temperature water output path;

[0082] When the target outlet water temperature is less than or equal to the first preset value, the booster pump and the first outlet water control valve are adjusted according to the target outlet water temperature and the first temperature to regulate the water flow rate of the normal temperature water output circuit and the water flow rate of the hot water output circuit, respectively.

[0083] When the target outlet water temperature is less than or equal to the second preset value, the first outlet water control valve is controlled according to the target outlet water temperature and the first temperature to adjust the water flow rate of the hot water output circuit.

[0084] When the target outlet water temperature is greater than or equal to the third preset value, the booster pump and the second outlet water control valve are controlled according to the target outlet water temperature and the first temperature to adjust the water flow rate of the normal temperature water output channel.

[0085] Preferably, the control method for the water purification supply system further includes:

[0086] Obtain the first flow rate of the water flowing through the ambient temperature water output path;

[0087] When the target outlet water temperature is less than or equal to the first preset value, the booster pump and / or the first outlet water control valve are adjusted according to the first flow rate.

[0088] Preferably, when the target outlet water temperature is less than or equal to the second preset value, the first outlet water control valve is adjusted according to the first flow rate;

[0089] When the target outlet water temperature is greater than or equal to a third preset value, the booster pump and the second outlet water control valve are adjusted according to the first flow rate so that the first flow rate conforms to a first relationship, the first relationship including the target outlet water temperature and the correspondence between the first temperature and the first flow rate.

[0090] Preferably, the control method for the water purification supply system further includes:

[0091] Obtain the second temperature of the water flowing through the hot water output path or the water in the water storage unit;

[0092] When the target outlet water temperature is less than or equal to the first preset value, the booster pump and the first outlet water control valve are controlled according to the target outlet water temperature, the first temperature and the second temperature to adjust the water flow rate of the room temperature water output circuit and the water flow rate of the hot water output circuit, thereby regulating the mixing ratio of the room temperature water output by the room temperature water output circuit and the hot water output by the hot water output circuit.

[0093] Preferably, the control method for the water purification supply system further includes:

[0094] When the target outlet water temperature is less than or equal to the second preset value, the first outlet water control valve is controlled according to the target outlet water temperature, the first temperature and the second temperature to adjust the water flow rate of the hot water output circuit.

[0095] When the target outlet water temperature is greater than or equal to the third preset value, the booster pump and the second outlet water control valve are controlled according to the target outlet water temperature, the first temperature and the second temperature to adjust the water flow rate of the normal temperature water output channel.

[0096] Preferably, the control method for the water purification supply system further includes:

[0097] The second temperature of the water flowing through the hot water output path or the water in the hot tank, and the first flow rate of the water flowing through the ambient temperature water output path are obtained.

[0098] When the target outlet water temperature is less than or equal to the first preset value, the booster pump and the first outlet water control valve are controlled according to the target outlet water temperature, the first temperature, the second temperature and the first flow rate to adjust the water flow rate of the room temperature water output circuit and the water flow rate of the hot water output circuit respectively, thereby regulating the mixing ratio of the room temperature water output by the room temperature water output circuit and the hot water output by the hot water output circuit.

[0099] When the target outlet water temperature is less than or equal to the second preset value, the first outlet water control valve is controlled according to the target outlet water temperature, the first temperature, the second temperature, and the first flow rate to adjust the water flow rate of the hot water output circuit;

[0100] When the target outlet water temperature is greater than or equal to the third preset value, the booster pump and the second outlet water control valve are controlled according to the target outlet water temperature, the first temperature, the second temperature and the first flow rate to adjust the water flow rate of the normal temperature water output channel.

[0101] The technical solution of the present invention has the following significant beneficial effects:

[0102] The water purification supply system in this application can obtain a target outlet water temperature through a controller. When the target outlet water temperature is less than or equal to a first preset value, the system can control the booster pump and the first outlet control valve to adjust the water flow rates of the ambient temperature water output path and the hot water output path, respectively, thereby regulating the mixing ratio of ambient temperature water output from the ambient temperature water output path and hot water output from the hot water output path. Since adjusting the booster pump can reduce the water flow rate of the ambient temperature water output path, and adjusting the first outlet control valve can reduce the water flow rate of the hot water output path, this effectively increases the range of adjustable outlet water temperature, thus meeting more diverse temperature needs of users.

[0103] Specific embodiments of the invention are disclosed in detail below with reference to the description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0104] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0105] Figure 1 This is a schematic diagram of the water purification supply system in the first embodiment of the present invention;

[0106] Figure 2 This is a schematic diagram of the water purification supply system in the second embodiment of the present invention;

[0107] Figure 3 This is a schematic diagram of the water purification supply system in the third embodiment of the present invention;

[0108] Figure 4 This is a schematic diagram of the water purification supply system in the fourth embodiment of the present invention;

[0109] Figure 5 This is a schematic diagram of the water purification supply system in the fifth embodiment of the present invention;

[0110] Figure 6 This is a schematic diagram of the water purification supply system in the sixth embodiment of the present invention;

[0111] Figure 7 This is a schematic diagram of the water purification supply system in the seventh embodiment of the present invention;

[0112] Figure 8 This is a schematic diagram of the water purification supply system in the eighth embodiment of the present invention.

[0113] The reference numerals in the above figures are as follows:

[0114] 1. Fine filtration unit; 2. Booster pump; 3. Heating tank; 4. Normal temperature water output circuit; 41. Second outlet control valve; 42. Flow detection device; 5. Hot water output circuit; 51. First outlet control valve; 6. First temperature detection unit; 7. Second temperature detection unit; 8. Water supply valve; 9. Water pump; 10. Pre-filtration unit; 11. Post-filtration unit; 12. Inlet valve; 13. First return water circuit; 131. Check valve; 14. Wastewater discharge circuit; 141. Combination valve; 15. Second return water circuit; 151. On / off valve. Detailed Implementation

[0115] The details of the present invention can be more clearly understood by referring to the accompanying drawings and the description of specific embodiments. However, the specific embodiments of the present invention described herein are for illustrative purposes only and should not be construed as limiting the invention in any way. Under the teachings of this invention, those skilled in the art can conceive of any possible modifications based on the invention, all of which should be considered within the scope of the invention. It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "mounted," "connected," and "connected" should be interpreted broadly, for example, they can refer to mechanical or electrical connections, or internal communication between two elements, and can be direct or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0116] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0117] In order to achieve a wider range of adjustable water temperature, a water purification supply system is proposed in this application. Figure 1 This is a schematic diagram of the water purification supply system in the first embodiment of the present invention, as shown below. Figure 1 As shown, the water purification supply system may include: a fine filtration unit 1, a booster pump 2, a heating tank 3, a normal temperature water output circuit 4, a hot water output circuit 5, and a controller.

[0118] The fine filtration unit 1 can be a filtration unit that plays a major role in filtering and purifying water, producing purified water after filtration. Alternatively, the fine filtration unit 1 can be configured to discharge wastewater during the filtration and purification of raw water, with the wastewater exiting from the wastewater outlet and the purified water produced through the filtration membrane exiting from the purified water outlet. Alternatively, the fine filtration unit 1 can include at least one of the following: a reverse osmosis membrane filtration unit, a nanofiltration membrane filtration unit, an ultrafiltration membrane filtration unit, and a fiber membrane filtration unit, etc. Of course, the fine filtration unit 1 can also be other types of filtration units, such as those that do not require wastewater discharge during the filtration and purification of raw water; this application does not impose any limitations on these types. The booster pump 2 is used, on the one hand, to pressurize the fine filtration unit 1, thereby increasing the filtration rate of water within the fine filtration unit 1; on the other hand, the booster pump 2 can be controlled to adjust the output water volume after filtration by the fine filtration unit 1.

[0119] The booster pump 2 can be installed upstream of the fine filtration unit 1 or downstream of the purified water outlet of the fine filtration unit 1.

[0120] The heating tank 3 may have an inlet and an outlet, with the inlet connected to the purified water outlet. The heating tank 3 is used to receive purified water produced by the fine filtration unit 1 and to heat and store it. Alternatively, the heating tank 3 may have a heating element to heat the water stored in it. The heating element is generally an electric heating element, but other types, such as a heat exchanger, can also be used. Typically, the heating tank 3 receives the purified water produced by the fine filtration unit 1 and heats it to a boiling point or approximately 98 degrees Celsius, close to boiling. Afterward, the heating tank 3 can perform a heat preservation operation.

[0121] The ambient temperature water output channel 4 can be connected to the purified water outlet. The purified water produced after filtration by the fine filtration unit 1 can be output to the user through the ambient temperature water output channel 4.

[0122] The hot water output circuit 5 can be connected to the outlet of the hot water tank 3. A first outlet control valve 51 can be installed on the hot water output circuit 5. The flow rate of the hot water output from the hot water tank 3 can be controlled by adjusting the first outlet control valve 51.

[0123] The controller is used to obtain the target outlet water temperature. The target outlet water temperature is specifically the temperature required by the user or the outlet water temperature set by the user on the water purification supply system. When the target outlet water temperature is less than or equal to a first preset value, the controller controls the booster pump 2 and the first outlet water control valve 51 to adjust the water flow rate of the ambient temperature water output channel 4 and the hot water output channel 5 respectively, thereby regulating the mixing ratio of the ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5.

[0124] The water purification supply system in this application can obtain the target outlet water temperature through a controller. When the target outlet water temperature is less than or equal to a first preset value, the booster pump 2 and the first outlet control valve 51 can be controlled to adjust the water flow rate of the ambient temperature water output channel 4 and the hot water output channel 5, respectively, thereby regulating the mixing ratio of the ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5. Since adjusting the booster pump 2 can adjust the water flow rate of the ambient temperature water output channel 4, thus reducing the water flow rate of the ambient temperature water output channel 4, and adjusting the first outlet control valve 51 can adjust the water flow rate of the hot water output channel 5, thus reducing the water flow rate of the hot water output channel 5, the range of adjustable outlet water temperature can be effectively increased, thereby meeting more diverse temperature needs of users.

[0125] As a feasible embodiment, in the above implementation, the temperature of the hot water output from the heating tank 3 can be a set value, such as the temperature at which the heating tank 3 keeps the water warm, for example, 98 degrees Celsius. The temperature of the water output from the room temperature water outlet 4 can also be a set value, such as the temperature of room temperature water under normal circumstances with the highest probability, or the set value can be different in different seasons. This data can be stored in the controller in advance.

[0126] As a feasible approach, the controller can control the duty cycle of the booster pump 2 to adjust the water flow rate of the ambient temperature water output channel 4, thereby regulating the mixing ratio of the ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5. The linear relationship between the duty cycle of the booster pump 2 and the water flow rate of the ambient temperature water output channel 4 is relatively good, and the actual water flow rate of the ambient temperature water output channel 4 can be effectively adjusted by controlling the duty cycle of the booster pump 2. For example, when the duty cycle of booster pump 2 is 20%, the water flow rate of the ambient temperature water output channel 4 is 190 L / min; when the duty cycle of booster pump 2 is 40%, the water flow rate of the ambient temperature water output channel 4 is 470 L / min; when the duty cycle of booster pump 2 is 60%, the water flow rate of the ambient temperature water output channel 4 is 720 L / min; and when the duty cycle of booster pump 2 is 80%, the water flow rate of the ambient temperature water output channel 4 is 1000 L / min. From the above data, it can be seen that the linear relationship between the duty cycle of booster pump 2 and the water flow rate of the ambient temperature water output channel 4 is relatively good. By controlling the duty cycle of booster pump 2, the actual water flow rate of the ambient temperature water output channel 4 can be adjusted with a certain degree of accuracy.

[0127] As the duty cycle of booster pump 2 decreases, the water flow rate in the ambient temperature water output channel 4 will continuously decrease. However, the duty cycle of booster pump 2 cannot decrease indefinitely, otherwise booster pump 2 will not be able to continue operating. For one of the reasons mentioned above, the duty cycle of booster pump 2 has a rated minimum value, for example, the rated minimum duty cycle of booster pump 2 is 20% or 40%, etc., the specific value depends on the performance of booster pump 2. Therefore, the water flow rate in the ambient temperature water output channel 4 cannot decrease indefinitely, it also has a minimum value. Therefore, when the booster pump 2 and the first outlet control valve 51 adjust the water flow rates of the ambient temperature water output channel 4 and the hot water output channel 5 respectively, thereby regulating the mixing ratio of the ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5, the temperature of the mixed water cannot be too high, for example, it cannot be too close to 98 degrees Celsius. The maximum temperature of the mixed water can be 70 degrees Celsius, 75 degrees Celsius, 80 degrees Celsius, etc., depending on the minimum rated duty cycle of the booster pump 2, which leads to the minimum water flow rate of the ambient temperature water output channel 4. For the above reasons, only when the target outlet water temperature is less than or equal to the first preset value can the booster pump 2 and the first outlet control valve 51 be adjusted according to the target outlet water temperature to regulate the mixing ratio of the ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5. The specific setting of the first preset value can be less than or equal to the maximum temperature of the mixed water.

[0128] Alternatively, the first outlet control valve 51 can be a solenoid valve, and the controller controls the duty cycle of the first outlet control valve 51 to adjust the water flow rate of the hot water output circuit 5.

[0129] As an option, the first water outlet control valve 51 can be an electric valve. The controller controls the first water outlet control valve 51 to repeatedly open and close within a cycle, thereby controlling the proportion of the open state time in a cycle, and thus adjusting the water flow of the hot water output circuit 5.

[0130] Alternatively, the first outlet control valve 51 can be a proportional valve, which is adjusted by a motor to regulate the size of the flow orifice, thereby regulating the water flow rate of the hot water output circuit 5.

[0131] Alternatively, the controller can also be used to adjust the water flow rate of the hot water output circuit 5 according to the target outlet water temperature when the target outlet water temperature is less than or equal to a second preset value, thereby regulating the mixing ratio of room temperature water output from the room temperature water output circuit 4 and hot water output from the hot water output circuit 5. The second preset value is less than the first preset value. At this time, the water supply system outputs water at a slightly lower temperature, which is slightly higher than room temperature water, depending on the water flow rate of the hot water output circuit 5 adjusted by the first outlet water control valve 51. The maximum setting of the second preset value can be the temperature of the mixture of room temperature water output from the room temperature water output circuit 4 and hot water output from the hot water output circuit 5 when the first outlet water control valve 51 is fully open.

[0132] Because the temperature of the mixed water from the ambient temperature water output from the ambient temperature water output circuit 4 and the hot water output from the hot water output circuit 5 is only adjusted by booster pump 2 and the first outlet water control valve 51, and this temperature is still some distance from 98 degrees Celsius, the previous water purification supply system could not provide water with a temperature between the highest temperature and approximately 98 degrees Celsius if the user required such a temperature. Therefore, as a feasible solution, Figure 2 This is a schematic diagram of the water purification supply system in a second embodiment of the present invention, as shown below. Figure 2 As shown, a second outlet control valve 41 can be installed on the ambient temperature water output channel 4. The controller is also used to control the booster pump 2 and the second outlet control valve 41 to adjust the water flow rate of the ambient temperature water output channel 4 when the target outlet water temperature is greater than or equal to a third preset value, thereby regulating the mixing ratio of ambient temperature water output from the ambient temperature water output channel 4 and hot water output from the hot water output channel 5. The third preset value is greater than or equal to the first preset value.

[0133] In the above method, the first outlet control valve 51 can be fully opened, and the booster pump 2 and the second outlet control valve 41 can be controlled according to the target outlet water temperature to adjust the water flow rate of the room temperature water output channel 4, thereby regulating the mixing ratio of the room temperature water output from the room temperature water output channel 4 and the hot water output from the hot water output channel 5.

[0134] Similarly, as an option, the second outlet control valve 41 can be a solenoid valve, and the controller controls the duty cycle of the second outlet control valve 41 to adjust the water flow rate of the normal temperature water output channel 4.

[0135] As a feasible option, the second outlet control valve 41 is an electric valve. The controller controls the second outlet control valve 41 to repeatedly open and close within one cycle, thereby controlling the proportion of the open state time in one cycle, and thus adjusting the water flow of the normal temperature water output channel 4.

[0136] Alternatively, the second outlet control valve 41 can be a proportional valve, which is adjusted by a motor to regulate the size of the flow orifice, thereby regulating the water flow rate of the ambient temperature water output channel 4.

[0137] Since adjusting the booster pump 2 can reduce the water flow rate output from the ambient temperature water output channel 4, and adjusting the second outlet control valve 41 can further reduce the water flow rate output from the ambient temperature water output channel 4, when the target outlet water temperature is greater than or equal to the third preset value, the booster pump 2 and the second outlet control valve 41 can be controlled according to the target outlet water temperature to adjust the water flow rate of the ambient temperature water output channel 4, thereby further reducing the water flow rate of the ambient temperature water output channel 4. Ultimately, the temperature of the water after mixing the ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5 is higher, for example, close to 98 degrees Celsius. For example, when the booster pump 2 and the first outlet control valve 51 were originally controlled, the maximum temperature that could be reached was 80 degrees Celsius, but now it can reach any temperature between 80 degrees Celsius and 90 degrees Celsius.

[0138] Furthermore, for fine filtration units with filter membranes, the pressure before the filter membrane affects its desalination rate. To ensure the desalination rate meets requirements, the pressure before the filter membrane cannot be too low, therefore the pump's duty cycle cannot be too low. Consequently, it is necessary to further coordinate with the second outlet control valve 41 to further reduce the water flow rate output from the ambient temperature water output circuit 4. For example, the rated minimum duty cycle of the booster pump 2 is 20%, but considering the above reasons, the duty cycle of the booster pump 2 can only reach 40%.

[0139] When the ambient temperature water output channel 4 is equipped with a second outlet control valve 41, it is feasible to control the second outlet control valve 41 to be fully opened when the target outlet water temperature is less than or equal to the first preset value. According to the target outlet water temperature, the booster pump 2 and the first outlet control valve 51 are controlled to adjust the water flow rate of the ambient temperature water output channel 4 and the water flow rate of the hot water output channel 5 respectively, thereby regulating the mixing ratio of the ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5.

[0140] When the ambient temperature water output circuit 4 has a second outlet control valve 41, it is feasible to control the second outlet control valve 41 and the booster pump 2 to be fully opened when the target outlet water temperature is less than or equal to the second preset value. The first outlet control valve 51 is controlled according to the target outlet water temperature to adjust the water flow rate of the hot water output circuit 5, thereby regulating the mixing ratio of ambient temperature water output from ambient temperature water output circuit 4 and hot water output from hot water output circuit 5.

[0141] Under normal circumstances, booster pump 2 is located upstream of fine filtration unit 1. When the target outlet water temperature is less than or equal to the first preset value, the booster pump 2 is selected to be controlled and adjusted instead of the second outlet control valve 41 when adjusting the water flow rate of the ambient temperature water output channel 4. This is because if the second outlet control valve 41 is directly adjusted to reduce the water flow rate of the ambient temperature water output channel, the pressure between the booster pump 2 and the second outlet control valve 41 will inevitably increase, which will greatly increase the performance requirements of the pressure-bearing components in this range. On the other hand, the water flow rate of booster pump 2 will also decrease, causing booster pump 2 to become stuck for a long time, and the motor of booster pump 2 will overheat, thus affecting the lifespan of booster pump 2.

[0142] To further improve the accuracy of the controller's control over the temperature of the mixed water (room temperature water output from circuit 4 and hot water output from circuit 5), i.e., to ensure the temperature is as close as possible to the target outlet temperature, as a feasible approach... Figure 3 This is a schematic diagram of the water purification supply system in a third embodiment of the present invention, as shown below. Figure 3 As shown, the water supply system may include: a first temperature detection unit 6, which is used to detect the first temperature of the water flowing through the ambient temperature water output channel 4. The controller is also used to acquire the first temperature, and when the target outlet water temperature is less than or equal to a first preset value, to control the booster pump 2 and the first outlet water control valve 51 to adjust the water flow rate of the ambient temperature water output channel 4 and the hot water output channel 5 respectively, thereby regulating the mixing ratio of the ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5. Since the water temperature in the ambient temperature water output channel 4 changes with the ambient temperature, after acquiring the first temperature and the target outlet water temperature, the controller can more accurately control the booster pump 2 and the first outlet water control valve 51 to adjust the water flow rate of the ambient temperature water output channel 4 and the hot water output channel 5 respectively, so that the mixed water from the ambient temperature water output channel 4 and the hot water output channel 5 is closer to the target outlet water temperature.

[0143] Figure 4 This is a schematic diagram of the water purification supply system in the fourth embodiment of the present invention, as shown below. Figure 4As shown, when the ambient temperature water output channel 4 has a second outlet control valve 41, the controller can, as an option, also control the first outlet control valve 51 to adjust the water flow rate of the hot water output channel 5 based on the target outlet water temperature and the first temperature when the target outlet water temperature is less than or equal to a second preset value, thereby regulating the mixing ratio of ambient temperature water output from the ambient temperature water output channel 4 and hot water output from the hot water output channel 5. Alternatively, the controller can acquire the first flow rate and adjust the booster pump 2 and the second outlet control valve 41 based on the first flow rate to ensure that the first flow rate conforms to a second relationship, which includes the correspondence between the target outlet water temperature, the first temperature, and the first flow rate. Through this method, the booster pump 2 and the second outlet control valve 41 can be calibrated so that the calibrated first flow rate corresponds to the first flow rate in the second relationship.

[0144] When the ambient temperature water output channel 4 has a second outlet control valve 41, as feasible, the controller is also used to control the booster pump 2 and the second outlet control valve 41 according to the target outlet temperature and the first temperature when the target outlet temperature is greater than or equal to a third preset value, so as to adjust the water flow rate of the ambient temperature water output channel 4, thereby regulating the mixing ratio of the ambient temperature water output by the ambient temperature water output channel 4 and the hot water output by the hot water output channel 5.

[0145] Since the filtration rate of the fine filtration unit 1 is also affected by the temperature of the incoming room temperature water, generally speaking, the higher the temperature of the incoming room temperature water, the higher the filtration rate of the fine filtration unit 1. Of course, the temperature of the incoming room temperature water cannot exceed the maximum temperature that the fine filtration unit 1 can withstand, otherwise it will damage the fine filtration unit 1. Therefore, the different temperatures of the incoming room temperature water affect the filtration rate of the fine filtration unit 1, that is, affect the flow rate of room temperature water output from room temperature water output channel 4. This will cause a slight deviation between the temperature of the mixed water output from room temperature water output channel 4 and the hot water output from hot water output channel 5 and the target outlet water temperature. Therefore, as a feasible solution... Figure 6 This is a schematic diagram of the water purification supply system in the sixth embodiment of the present invention, as shown below. Figure 6As shown, a flow detection device 42 is installed on the ambient temperature water output channel 4. The flow detection device 42 is used to detect the first flow rate of the water flowing through the ambient temperature water output channel 4. The controller is also used to acquire the first flow rate and adjust the booster pump 2 according to the first flow rate so that the first flow rate conforms to a first relationship, which includes the correspondence between the target outlet water temperature, the first temperature, and the first flow rate. The booster pump 2 can be calibrated in the above way so that the calibrated first flow rate corresponds to the first flow rate in the first relationship. For example, when the target outlet water temperature and the first temperature are known, the booster pump 2 should be adjusted so that the first flow rate reaches A, and A, the target outlet water temperature, and the first temperature conform to the first relationship. However, due to the influence of the ambient temperature water temperature, the actual first flow rate of the water flowing through the ambient temperature water output channel 4 is B. At this time, the flow detection device 42 detects the flow rate of the water flowing through the ambient temperature water output channel 4 as B. Therefore, the booster pump 2 needs to be calibrated and adjusted so that the flow detection device 42 detects the flow rate of the water flowing through the ambient temperature water output channel 4 as A. If B is less than A, the duty cycle of booster pump 2 can be slightly increased; if B is greater than A, the duty cycle of booster pump 2 can be slightly decreased.

[0146] In other embodiments Figure 7 This is a schematic diagram of the water purification supply system in the seventh embodiment of the present invention, as shown below. Figure 7 As shown, when the target outlet water temperature is less than or equal to the first preset value, a first adjustment can be performed. This involves adjusting the flow rates of the ambient temperature water output path 4 and the hot water output path 5 based on the target outlet water temperature and the first temperature control pump 2 and the first outlet water control valve 51, respectively, thereby regulating the mixing ratio of the ambient temperature water output from the ambient temperature water output path 4 and the hot water output from the hot water output path 5. Afterwards, the purified water supply system outputs mixed water, and the flow detection device 42 can detect the first flow rate of the water flowing through the ambient temperature water output path 4. Then, the purified water supply system performs a second adjustment. The controller can obtain the first flow rate. When the target outlet water temperature is less than or equal to the first preset value, it adjusts the flow rates of the ambient temperature water output path 4 and the hot water output path 5 based on the target outlet water temperature, the first temperature, and the first flow rate, thereby regulating the mixing ratio of the ambient temperature water output from the ambient temperature water output path 4 and the hot water output from the hot water output path 5. The second adjustment mentioned above can directly take into account the two factors: the first temperature of the water in the normal temperature water output channel 4 and the first flow rate of the water flowing through the normal temperature water output channel 4. This allows for further adjustment of the booster pump 2 to further adjust the water flow rate of the normal temperature water output channel 4.

[0147] Similarly, in other embodiments, when the target outlet water temperature is less than or equal to a second preset value, the first outlet water control valve 51 is controlled according to the target outlet water temperature and the first temperature to adjust the water flow rate of the hot water output channel 5, thereby regulating the mixing ratio of the room temperature water output from the room temperature water output channel 4 and the hot water output from the hot water output channel 5. Afterwards, the purified water supply system outputs mixed water, and the flow detection device 42 can detect the first flow rate of the water flowing through the room temperature water output channel 4. Then, the purified water supply system performs a second adjustment. The controller, when the target outlet water temperature is less than or equal to the second preset value, controls the first outlet water control valve 51 according to the target outlet water temperature, the first temperature, and the first flow rate to adjust the water flow rate of the hot water output channel 5, thereby regulating the mixing ratio of the room temperature water output from the room temperature water output channel 4 and the hot water output from the hot water output channel 5.

[0148] Similarly, in other embodiments, when the target outlet water temperature is greater than or equal to a third preset value, the booster pump 2 and the second outlet control valve 41 are controlled according to the target outlet water temperature and the first temperature to adjust the water flow rate of the room temperature water output channel 4, thereby regulating the mixing ratio of the room temperature water output from the room temperature water output channel 4 and the hot water output from the hot water output channel 5. Afterwards, the purified water supply system outputs mixed water, and the flow detection device 42 can detect the first flow rate of the water flowing through the room temperature water output channel 4. Then, the purified water supply system performs a second adjustment. The controller, when the target outlet water temperature is greater than or equal to the third preset value, controls the second outlet control valve 41 according to the target outlet water temperature, the first temperature, and the first flow rate to adjust the water flow rate of the room temperature water output channel 4, thereby regulating the mixing ratio of the room temperature water output from the room temperature water output channel 4 and the hot water output from the hot water output channel 5.

[0149] As a feasible option, Figure 5 This is a schematic diagram of the water purification supply system in the fifth embodiment of the present invention, as shown below. Figure 5As shown, the water supply system may include a second temperature detection unit 7, which is used to detect the second temperature of the water flowing through the hot water output path 5 or the water in the hot water tank 3. The controller is also used to acquire the second temperature. When the target outlet water temperature is less than or equal to a first preset value, it controls the booster pump 2 and the first outlet control valve 51 to adjust the water flow rate of the room temperature water output path 4 according to the target outlet water temperature, the first temperature, and the second temperature, thereby regulating the mixing ratio of the room temperature water output from the room temperature water output path 4 and the hot water output from the hot water output path 5. When the target outlet water temperature is less than or equal to the second preset value, it controls the booster pump 2 and the second outlet control valve 41 to adjust the water flow rate of the room temperature water output path 4 according to the target outlet water temperature, the first temperature, and the second temperature, and controls the first outlet control valve 51 to adjust the water flow rate of the hot water output path 5, thereby regulating the mixing ratio of the room temperature water output from the room temperature water output path 4 and the hot water output from the hot water output path 5. When the target outlet water temperature is greater than or equal to a third preset value, the booster pump 2 and the second outlet water control valve 41 are controlled according to the target outlet water temperature, the first temperature, and the second temperature to adjust the water flow rate of the ambient temperature water output channel 4, thereby regulating the mixing ratio of the ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5. This implementation method can accurately obtain the second temperature of the water in the heating tank 3, thus making the temperature of the mixture of the ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5 more accurate and closer to the target outlet water temperature.

[0150] As a feasible option, the water purification supply system may include a water output mechanism connected to a normal temperature water output path 4 and a hot water output path 5. The water output mechanism can be a device such as a faucet, allowing the user to access water from the purified water supply system. The water output from the normal temperature water output path 4 and the hot water output path 5 can be mixed at the water output mechanism, mixed in the water path before the water output mechanism, or mixed after the water output mechanism reaches the user's cup.

[0151] As a feasible option, Figure 8 This is a schematic diagram of the water purification supply system in the eighth embodiment of the present invention, as shown below. Figure 8 As shown, a water supply valve 8 can be connected between the hot water tank 3 and the purified water outlet of the fine filtration unit 1. When water needs to be added to the hot water tank 3, the water supply valve 8 can be opened, and the purified water output from the fine filtration unit 1 can enter the hot water tank 3 through the water supply valve 8.

[0152] In order to ensure a stable and controllable output of water from the hot tank 3, as a feasible approach, such as... Figure 8As shown, the water supply system may include: a water pump 9, which drives the water in the hot water tank 3 to flow to the hot water output channel 5. Furthermore, a controller is used to control the water pump 9 to start when the hot water output channel 5 needs to output hot water, so that the hot water output channel 5 outputs hot water at a preset constant flow rate.

[0153] As a feasible option, such as Figure 8 As shown, the water purification supply system may include a pre-filter unit 10, the outlet of which is connected to the inlet of the fine filter unit 1. Alternatively, there may be one or more pre-filter units 10, and multiple pre-filter units 10 may form a composite filter element.

[0154] As a feasible option, such as Figure 8 As shown, the water purification supply system may include: a post-filtration unit 11, the inlet of which is connected to the purified water outlet of the fine filtration unit 1, and the purified water output from the fine filtration unit 1 is further processed by the post-filtration unit 11 before being supplied to the heating tank 3 or the ambient temperature water output channel 4. Alternatively, the post-filtration unit 11 and the fine filtration unit 1 may form a composite filter element.

[0155] As a feasible option, such as Figure 8 As shown, the water purification supply system may include: an inlet valve 12, which is connected to the inlet of the pre-filter unit 10.

[0156] As a feasible option, such as Figure 8 As shown, the water purification supply system may include: a first return water path 13, one end of which is connected to the purified water outlet of the fine filtration unit 1 or downstream of the purified water outlet of the fine filtration unit 1, and the other end of which is connected to the inlet of the pre-filtration unit 10. A one-way valve 131 may be installed on the first return water path 13, connecting the purified water outlet of the fine filtration unit 1 to the inlet of the pre-filtration unit 10. In this embodiment, the other end of the first return water path 13 may be connected upstream of the inlet of the booster pump 2. Thus, even if the water purification supply system adjusts the second outlet control valve 41 to reduce the water flow rate of the ambient temperature water output path, the pressure between the downstream of the booster pump 2 and the second outlet control valve 41 will not increase. This is because the purified water output from the purified water outlet of the fine filtration unit 1 can flow back upstream of the booster pump, and the water flow rate of the booster pump 2 will not decrease accordingly, thus not affecting the lifespan of the booster pump 2.

[0157] As a feasible option, such as Figures 1 to 8 As shown, the water purification supply system may include: a wastewater discharge path 14, which is connected to the wastewater outlet of the fine filtration unit 1. A wastewater ratio device may be installed on the wastewater discharge path 14. Furthermore, a combination valve 141 with wastewater ratio and on / off functions may be installed on the wastewater discharge path 14.

[0158] As a feasible option, such as Figure 8 As shown, the water purification supply system may include a second return water path 15. One end of the second return water path 15 is connected to the wastewater outlet of the fine filtration unit 1 or downstream of the wastewater outlet of the fine filtration unit 1, and the other end of the second return water path 15 is connected to the inlet of the fine filtration unit 1. An on / off valve 151 may be installed on the second return water path 15. Further, the other end of the second return water path 15 may be connected upstream of the booster pump 2. As feasible, the booster pump 2 may be connected between the inlet of the fine filtration unit 1 and the outlet of the pre-filtration unit 10. In this embodiment, even if the water purification supply system adjusts the second outlet control valve 41 to reduce the water flow rate of the ambient temperature water output path, the pressure between the downstream of the booster pump 2 and the second outlet control valve 41 will not increase. This is because the wastewater output from the wastewater outlet of the fine filtration unit 1 can flow back to the upstream of the booster pump 2 through the second return water path 15, and the water flow rate of the booster pump 2 will not decrease accordingly, thus not affecting the lifespan of the booster pump 2.

[0159] This application also proposes a control method for a water purification supply system. This control method can be applied to any of the aforementioned water purification supply systems, or to other feasible water purification supply systems, and is not limited thereto in this application.

[0160] The control method for a water purification supply system may include: obtaining the target outlet water temperature and determining the temperature range to which the target outlet water temperature belongs.

[0161] The corresponding control method is executed according to the temperature range of the target outlet water temperature to regulate the mixing ratio of the room temperature water output from room temperature water output channel 4 and the hot water output from hot water output channel 5.

[0162] In this step, the control method corresponding to the temperature range to which the target outlet water temperature belongs is executed to adjust the mixing ratio of the room temperature water output from room temperature water output channel 4 and the hot water output from hot water output channel 5, so that the temperature of the water after mixing the room temperature water output from room temperature water output channel 4 and the hot water output from hot water output channel 5 can reach the target outlet water temperature.

[0163] In this step, as feasible, when the target outlet water temperature is less than or equal to the first preset value, the booster pump 2 and the first outlet water control valve 51 can be controlled to adjust the water flow rate of the ambient temperature water output channel 4 and the hot water output channel 5 respectively, based on the target outlet water temperature. In this step, as feasible, when the target outlet water temperature is less than or equal to the first preset value, the second outlet water control valve 41 can be controlled to be in a fully open state.

[0164] In this step, as feasible, when the target outlet water temperature is less than or equal to the second preset value, the first outlet water control valve 51 is controlled according to the target outlet water temperature to adjust the water flow rate of the hot water output circuit 5. The second preset value is less than the first preset value. In this step, as feasible, when the target outlet water temperature is less than or equal to the second preset value, the duty cycle of the booster pump 2 can be controlled to be 100%, and the second outlet water control valve 41 can be in a fully open state.

[0165] In this step, as feasible, when the target outlet water temperature is greater than or equal to the third preset value, the booster pump 2 and the second outlet water control valve 41 are controlled according to the target outlet water temperature to adjust the water flow rate of the ambient temperature water output channel 4. In this step, as feasible, when the target outlet water temperature is greater than or equal to the third preset value, the first outlet water control valve 51 can be controlled to be in a fully open state.

[0166] As a feasible method for controlling a water purification supply system, the following methods may be included:

[0167] Obtain the first temperature of the water in the constant temperature water output channel 4.

[0168] As a feasible approach, the control method for the purified water supply system may include: when the target outlet water temperature is less than or equal to a first preset value, adjusting the water flow rate of the ambient temperature water output channel 4 and the hot water output channel 5 according to the target outlet water temperature, the first temperature control booster pump 2, and the first outlet water control valve 51, respectively. Further, the control method for the purified water supply system may include: acquiring the first flow rate of water flowing into the ambient temperature water output channel 4; when the target outlet water temperature is less than or equal to the first preset value, adjusting the booster pump 2 and / or the first outlet water control valve 51 according to the first flow rate. This method allows the ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5 to be mixed more closely to the target outlet water temperature. In this method, the influence of the temperature of the incoming ambient temperature water on the filtration rate of the fine filtration unit 1 can be eliminated. Due to the influence of temperature, the actual flow rate of the ambient temperature water output channel 4 deviates from the design value when controlling the booster pump 2. Therefore, by comparing the initial flow rate of the water flowing through the ambient temperature water output channel 4 with the design value, the booster pump 2 and / or the first outlet control valve 51 can be further adjusted to make the mixed ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5 closer to the target outlet temperature. For example, if the initial flow rate of the water flowing through the ambient temperature water output channel 4 is C, and the design value is D, if C is less than D, the duty cycle of the booster pump 2 can be increased to make the initial flow rate of the water flowing through the ambient temperature water output channel 4 closer to or equal to D. Alternatively, the first outlet control valve 51 can be controlled to reduce the amount of hot water output from the hot water output channel 5, so that the mixed ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5 can be closer to the target outlet temperature while keeping the flow rate of the ambient temperature water output from the ambient temperature water output channel 4 unchanged.

[0169] Furthermore, the control method for the purified water supply system may include: acquiring a second temperature of the water flowing through the hot water output channel 5 or the water in the hot water tank 3, and a first flow rate of the water flowing through the ambient temperature water output channel 4. Alternatively, when the target outlet water temperature is less than or equal to a first preset value, the booster pump 2 and the first outlet control valve 51 can be controlled to adjust the water flow rate of the ambient temperature water output channel 4 and the hot water output channel 5 respectively, based on the target outlet water temperature, the first temperature, the second temperature, and the first flow rate, thereby regulating the mixing ratio of the ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5. This method considers the factors of the first temperature, the second temperature, and the first flow rate simultaneously, which allows for a higher accuracy in determining the temperature of the mixed ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5, making it closer to the target outlet water temperature.

[0170] As a feasible approach, the control method for the purified water supply system may include: when the target outlet water temperature is less than or equal to a second preset value, controlling the first outlet water control valve 51 according to the target outlet water temperature and a first temperature to adjust the water flow rate of the hot water output circuit 5. Further, when the target outlet water temperature is less than or equal to the second preset value, the first outlet water control valve 51 may be adjusted according to the first flow rate, thereby ensuring that the ambient temperature water output from the ambient temperature water output circuit 4 and the hot water output from the hot water output circuit 5 are mixed to more closely approximate the target outlet water temperature, while maintaining a constant flow rate of ambient temperature water output from the ambient temperature water output circuit 4. Further, when the target outlet water temperature is less than or equal to the second preset value, controlling the first outlet water control valve 51 according to the target outlet water temperature, the first temperature, the second temperature, and the first flow rate to adjust the water flow rate of the hot water output circuit 5, thereby regulating the mixing ratio of the ambient temperature water output from the ambient temperature water output circuit 4 and the hot water output from the hot water output circuit 5. This method takes into account the factors of first temperature, second temperature and first flow rate, which makes the temperature of the mixed room temperature water output from room temperature water output channel 4 and hot water output from hot water output channel 5 more accurate and closer to the target outlet water temperature.

[0171] As a feasible approach, the control method for the purified water supply system may include: when the target outlet water temperature is greater than or equal to a third preset value, controlling the booster pump 2 and the second outlet control valve 41 according to the target outlet water temperature and a first temperature to adjust the water flow rate of the ambient temperature water output channel 4. Further, when the target outlet water temperature is greater than or equal to the third preset value, adjusting the booster pump 2 and the second outlet control valve 41 according to the first flow rate to ensure the first flow rate conforms to a first relationship, which includes the correspondence between the target outlet water temperature, the first temperature, and the first flow rate. Similarly, since the water temperature in the ambient temperature water output channel 4 changes with the ambient temperature, the above method can more accurately control the booster pump 2 and the second outlet control valve 41 to adjust the water flow rate of the ambient temperature water output channel 4, so that the mixed water from the ambient temperature water output channel 4 and the hot water output channel 5 is closer to the target outlet water temperature. Furthermore, when the target outlet water temperature is greater than or equal to a third preset value, the booster pump 2 and the second outlet water control valve 41 are controlled according to the target outlet water temperature, the first temperature, the second temperature, and the first flow rate to adjust the water flow rate of the ambient temperature water output channel 4. In this method, the factors of the first temperature, the second temperature, and the first flow rate are considered simultaneously, which makes the temperature of the ambient temperature water output from the ambient temperature water output channel 4 and the hot water output from the hot water output channel 5 more accurate and closer to the target outlet water temperature.

[0172] As a feasible approach, the control method for the purified water supply system may include: acquiring a second temperature of the water flowing through the hot water output path 5 or the water in the storage unit. When the target outlet water temperature is less than or equal to a first preset value, the booster pump 2 and the first outlet control valve 51 are controlled to adjust the water flow rate of the ambient temperature water output path 4 and the hot water output path 5 respectively, based on the target outlet water temperature, the first temperature, and the second temperature, thereby regulating the mixing ratio of the ambient temperature water output from the ambient temperature water output path 4 and the hot water output from the hot water output path 5.

[0173] As a feasible control method for the water supply system, it further includes: when the target outlet water temperature is less than or equal to the second preset value, controlling the first outlet water control valve 51 according to the target outlet water temperature, the first temperature and the second temperature to adjust the water flow rate of the hot water output channel 5, thereby regulating the mixing ratio of the room temperature water output from the room temperature water output channel 4 and the hot water output from the hot water output channel 5.

[0174] As a feasible control method for the water supply system, it further includes: when the target outlet water temperature is greater than or equal to the third preset value, controlling the booster pump 2 and the second outlet water control valve 41 according to the target outlet water temperature, the first temperature and the second temperature to adjust the water flow rate of the room temperature water output channel 4, thereby regulating the mixing ratio of the room temperature water output from the room temperature water output channel 4 and the hot water output from the hot water output channel 5.

[0175] Using the above method, the second temperature of the water in the hot water tank 3 can be accurately obtained to prevent the temperature of the water in the hot water tank 3 from changing. This makes the temperature of the mixed room temperature water output from the room temperature water output circuit 4 and the hot water output from the hot water output circuit 5 more accurate and closer to the target outlet water temperature.

[0176] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified element, component, part, or step, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute “may” include is optional. Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The disclosure of “a” or “an” used to describe an element, component, part, or step does not imply exclusion of other elements, components, parts, or steps.

[0177] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A water purification supply system, characterized in that, The water purification supply system includes: A fine filtration unit, wherein the fine filtration unit has a purified water outlet; A booster pump is used to pressurize the fine filtration unit, and the booster pump has a rated minimum duty cycle. A hot tank having an inlet and an outlet, the inlet of which is connected to the purified water outlet, the hot tank being used to receive purified water produced by the fine filtration unit and heat and store it; A normal temperature water output path is provided, which is connected to the purified water outlet, and a second water outlet control valve is provided on the normal temperature water output path. A hot water output circuit is provided, which is connected to the outlet of the hot water tank, and a first outlet control valve is provided on the hot water output circuit. The controller is used to acquire a target outlet water temperature. When the target outlet water temperature is less than or equal to a first preset value, the controller controls the booster pump and the first outlet water control valve to adjust the water flow rate of the ambient temperature water output path and the hot water output path respectively, thereby regulating the mixing ratio of ambient temperature water output from the ambient temperature water output path and hot water output from the hot water output path. When the target outlet water temperature is greater than or equal to a third preset value, the controller controls the booster pump and the second outlet water control valve to adjust the water flow rate of the ambient temperature water output path, thereby regulating the mixing ratio of ambient temperature water output from the ambient temperature water output path and hot water output from the hot water output path. The third preset value is greater than the first preset value.

2. The water purification supply system according to claim 1, characterized in that, The controller is also used to control the first outlet control valve according to the target outlet water temperature when the target outlet water temperature is less than or equal to the second preset value, so as to adjust the water flow rate of the hot water output circuit, thereby regulating the mixing ratio of the room temperature water output by the room temperature water output circuit and the hot water output by the hot water output circuit. The second preset value is less than the first preset value.

3. The water purification supply system according to claim 2, characterized in that, When the target outlet water temperature is less than or equal to the first preset value, the second outlet water control valve is fully opened. According to the target outlet water temperature, the booster pump and the first outlet water control valve are controlled to adjust the water flow rate of the room temperature water output circuit and the water flow rate of the hot water output circuit, respectively, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit. When the target outlet water temperature is less than or equal to the second preset value, the second outlet water control valve and the booster pump are fully opened. The first outlet water control valve is controlled according to the target outlet water temperature to adjust the water flow rate of the hot water output circuit, thereby regulating the mixing ratio of room temperature water output from the room temperature water output circuit and hot water output from the hot water output circuit.

4. The water purification supply system according to claim 2, characterized in that, When the target outlet water temperature is greater than or equal to the third preset value, the first outlet water control valve is fully opened. The booster pump and the second outlet water control valve are controlled according to the target outlet water temperature to adjust the water flow rate of the room temperature water output circuit, thereby regulating the mixing ratio of room temperature water output from the room temperature water output circuit and hot water output from the hot water output circuit.

5. The water purification supply system according to claim 1, characterized in that, The controller controls the duty cycle of the booster pump to adjust the water flow rate of the ambient temperature water output circuit.

6. The water purification supply system according to claim 1, characterized in that, The first water outlet control valve is a solenoid valve, and the controller controls the duty cycle of the first water outlet control valve to adjust the water flow rate of the hot water output circuit. or, The first water outlet control valve is an electric valve. The controller controls the first water outlet control valve to repeatedly open and close within a cycle, thereby controlling the proportion of the open state time within a cycle, and thus adjusting the water flow of the hot water output circuit. or, The first water outlet control valve is a proportional valve, and the size of the flow orifice of the proportional valve is adjusted by a motor to regulate the water flow of the hot water output circuit.

7. The water purification supply system according to claim 1, characterized in that, The water purification supply system also includes: The first temperature detection unit is used to detect the first temperature of the water flowing through the ambient temperature water output channel. The controller is also used to acquire the first temperature, and when the target outlet water temperature is less than or equal to a first preset value, to control the booster pump and the first outlet water control valve to adjust the water flow rate of the room temperature water output circuit and the water flow rate of the hot water output circuit respectively according to the target outlet water temperature and the first temperature, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit.

8. The water purification supply system according to claim 7, characterized in that, The controller is also used to control the first water outlet control valve according to the target water outlet temperature and the first temperature when the target water outlet temperature is less than or equal to the second preset value, so as to adjust the water flow rate of the hot water output circuit, thereby regulating the mixing ratio of the room temperature water output by the room temperature water output circuit and the hot water output by the hot water output circuit. The second preset value is less than the first preset value.

9. The water purification supply system according to claim 7, characterized in that, The controller is also used to control the booster pump and the second outlet control valve to adjust the water flow rate of the room temperature water output circuit when the target outlet water temperature is greater than or equal to a third preset value, based on the target outlet water temperature and the first temperature, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit.

10. The water purification supply system according to claim 8, characterized in that, The controller is also used to control the booster pump and the second outlet control valve according to the target outlet water temperature and the first temperature when the target outlet water temperature is greater than or equal to the third preset value, so as to adjust the water flow rate of the room temperature water output circuit, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit. The third preset value is greater than the first preset value.

11. The water purification supply system according to claim 7, characterized in that, A flow detection device is installed on the ambient temperature water output path, and the flow detection device is used to detect the first flow rate of the water flowing through the ambient temperature water output path. The controller is also configured to acquire the first flow rate and adjust the booster pump according to the first flow rate so that the first flow rate conforms to a first relationship, the first relationship including the target outlet water temperature and the correspondence between the first temperature and the first flow rate.

12. The water purification supply system according to claim 7, characterized in that, A flow detection device is installed on the ambient temperature water output path, and the flow detection device is used to detect the first flow rate of the water flowing through the ambient temperature water output path. The controller is also used to acquire the first flow rate, and when the target outlet water temperature is less than or equal to a first preset value, to control the booster pump and the first outlet water control valve to adjust the water flow rate of the room temperature water output circuit and the water flow rate of the hot water output circuit respectively according to the target outlet water temperature, the first temperature and the first flow rate, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit.

13. The water purification supply system according to claim 12, characterized in that, The controller is used to control the first outlet control valve to adjust the water flow of the hot water output circuit according to the target outlet water temperature, the first temperature and the first flow when the target outlet water temperature is less than or equal to the second preset value, thereby regulating the mixing ratio of the room temperature water output by the room temperature water output circuit and the hot water output by the hot water output circuit. The second preset value is less than the first preset value.

14. The water purification supply system according to claim 12, characterized in that, A second outlet control valve is installed on the normal temperature water output line; The controller is used to control the second outlet control valve to adjust the water flow of the room temperature water output circuit according to the target outlet water temperature, the first temperature and the first flow when the target outlet water temperature is greater than or equal to the third preset value, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit. The third preset value is greater than the first preset value.

15. The water purification supply system according to claim 8, characterized in that, The water purification supply system also includes: The second temperature detection unit is used to detect the second temperature of the water flowing through the hot water output path or the water in the hot water tank. The controller is also used to acquire the second temperature. When the target outlet water temperature is less than or equal to the first preset value, the controller controls the booster pump and the first outlet water control valve to adjust the water flow rate of the room temperature water output circuit according to the target outlet water temperature, the first temperature and the second temperature, thereby regulating the mixing ratio of room temperature water output by the room temperature water output circuit and hot water output by the hot water output circuit. When the target outlet water temperature is less than or equal to the second preset value, the booster pump and the second outlet water control valve are controlled according to the target outlet water temperature, the first temperature and the second temperature to adjust the water flow rate of the room temperature water output circuit, and the first outlet water control valve is controlled to adjust the water flow rate of the hot water output circuit, thereby regulating the mixing ratio of room temperature water output from the room temperature water output circuit and hot water output from the hot water output circuit. When the target outlet water temperature is greater than or equal to the third preset value, the booster pump and the second outlet water control valve are controlled according to the target outlet water temperature, the first temperature and the second temperature to adjust the water flow rate of the room temperature water output circuit, thereby regulating the mixing ratio of the room temperature water output by the room temperature water output circuit and the hot water output by the hot water output circuit.

16. The water purification supply system according to claim 8, characterized in that, A flow detection device is installed on the ambient temperature water output path, and the flow detection device is used to detect the first flow rate of the water flowing through the ambient temperature water output path. The controller is also used to acquire the first flow rate and adjust the booster pump and the second outlet control valve according to the first flow rate so that the first flow rate conforms to a second relationship, the second relationship including the target outlet temperature and the correspondence between the first temperature and the first flow rate.

17. The water purification supply system according to claim 1, characterized in that, The second water outlet control valve is a solenoid valve, and the controller controls the duty cycle of the second water outlet control valve to adjust the water flow rate of the normal temperature water output channel; or, The second outlet control valve is an electric valve. The controller controls the second outlet control valve to open and close repeatedly within a cycle, thereby controlling the proportion of the open state time within a cycle, and thus adjusting the water flow of the normal temperature water output circuit. or, The second outlet control valve is a proportional valve, and the size of the flow orifice of the proportional valve is adjusted by a motor to adjust the water flow of the normal temperature water output channel.

18. The water purification supply system according to claim 1, characterized in that, The water purification supply system also includes: A water output mechanism, which is connected to the ambient temperature water output path and the hot water output path.

19. The water purification supply system according to claim 1, characterized in that, A water supply valve is connected between the hot tank and the purified water outlet of the fine filtration unit.

20. The water purification supply system according to claim 1, characterized in that, The water purification supply system includes: A water pump is used to drive the water in the hot water tank to the hot water output circuit. The controller is used to control the water pump to start when the hot water output circuit needs to output hot water, so that the hot water output circuit outputs hot water at a preset constant flow rate.

21. A control method for a water purification supply system, characterized in that, The purified water supply system includes: a fine filtration unit with a purified water outlet; a booster pump for pressurizing the fine filtration unit, the booster pump having a rated minimum duty cycle; a heating tank with an inlet and an outlet, the inlet of the heating tank being connected to the purified water outlet, the heating tank being used to receive and heat the purified water produced by the fine filtration unit; a room temperature water output path connected to the purified water outlet, the room temperature water output path being equipped with a second outlet control valve; and a hot water output path connected to the outlet of the heating tank, the hot water output path being equipped with a first outlet control valve. The control method for the water purification supply system includes: Obtain the target outlet water temperature and determine the temperature range to which the target outlet water temperature belongs; The control method is executed according to the temperature range to which the target outlet water temperature belongs, so as to regulate the mixing ratio of room temperature water output from the room temperature water output circuit and hot water output from the hot water output circuit. This includes: when the target outlet water temperature is less than or equal to a first preset value, controlling the booster pump and the first outlet water control valve to adjust the water flow rate of the room temperature water output circuit and the water flow rate of the hot water output circuit respectively according to the target outlet water temperature; when the target outlet water temperature is greater than or equal to a third preset value, controlling the booster pump and the second outlet water control valve to adjust the water flow rate of the room temperature water output circuit according to the target outlet water temperature, wherein the third preset value is greater than the first preset value.

22. The control method for the water purification supply system according to claim 21, characterized in that, When the target outlet water temperature is less than or equal to the first preset value, the second outlet water control valve is controlled to be in a fully open state.

23. The control method for the water purification supply system according to claim 21, characterized in that, The step further includes executing the corresponding control method based on the temperature range to which the target outlet water temperature belongs, and also includes: When the target outlet water temperature is less than or equal to the second preset value, the first outlet water control valve is controlled according to the target outlet water temperature to adjust the water flow rate of the hot water output circuit. The second preset value is less than the first preset value.

24. The control method for the water purification supply system according to claim 23, characterized in that, When the target outlet water temperature is less than or equal to the second preset value, the duty cycle of the booster pump is controlled at 100%, and the second outlet water control valve is in a fully open state.

25. The control method for the water purification supply system according to claim 21, characterized in that, When the target outlet water temperature is greater than or equal to a third preset value, the first outlet water control valve is controlled to be in a fully open state.

26. The control method for the water purification supply system according to claim 21, characterized in that, The control method for the water purification supply system also includes: Obtain the first temperature of the water flowing through the ambient temperature water output path; When the target outlet water temperature is less than or equal to the first preset value, the booster pump and the first outlet water control valve are adjusted according to the target outlet water temperature and the first temperature to regulate the water flow rate of the normal temperature water output circuit and the water flow rate of the hot water output circuit, respectively. When the target outlet water temperature is less than or equal to the second preset value, the first outlet water control valve is controlled according to the target outlet water temperature and the first temperature to adjust the water flow of the hot water output circuit, and the second preset value is less than the first preset value. When the target outlet water temperature is greater than or equal to the third preset value, the booster pump and the second outlet water control valve are controlled according to the target outlet water temperature and the first temperature to adjust the water flow rate of the normal temperature water output channel.

27. The control method for the water purification supply system according to claim 26, characterized in that, The control method for the water purification supply system also includes: Obtain the first flow rate of the water flowing through the ambient temperature water output path; When the target outlet water temperature is less than or equal to the first preset value, the booster pump and / or the first outlet water control valve are adjusted according to the first flow rate.

28. The control method for the water purification supply system according to claim 27, characterized in that, When the target outlet water temperature is less than or equal to the second preset value, the first outlet water control valve is adjusted according to the first flow rate; When the target outlet water temperature is greater than or equal to a third preset value, the booster pump and the second outlet water control valve are adjusted according to the first flow rate so that the first flow rate conforms to a first relationship, the first relationship including the target outlet water temperature and the correspondence between the first temperature and the first flow rate.

29. The control method for the water purification supply system according to claim 26, characterized in that, The control method for the water purification supply system also includes: Obtain the second temperature of the water flowing through the hot water output path or the water in the water storage unit; When the target outlet water temperature is less than or equal to the first preset value, the booster pump and the first outlet water control valve are controlled according to the target outlet water temperature, the first temperature and the second temperature to adjust the water flow rate of the room temperature water output circuit and the water flow rate of the hot water output circuit, thereby regulating the mixing ratio of the room temperature water output by the room temperature water output circuit and the hot water output by the hot water output circuit.

30. The control method for the water purification supply system according to claim 29, characterized in that, The control method for the water purification supply system also includes: When the target outlet water temperature is less than or equal to the second preset value, the first outlet water control valve is controlled according to the target outlet water temperature, the first temperature and the second temperature to adjust the water flow rate of the hot water output circuit. When the target outlet water temperature is greater than or equal to the third preset value, the booster pump and the second outlet water control valve are controlled according to the target outlet water temperature, the first temperature and the second temperature to adjust the water flow rate of the normal temperature water output channel.

31. The control method for the water purification supply system according to claim 26, characterized in that, The control method for the water purification supply system also includes: The second temperature of the water flowing through the hot water output path or the water in the hot tank, and the first flow rate of the water flowing through the ambient temperature water output path are obtained. When the target outlet water temperature is less than or equal to the first preset value, the booster pump and the first outlet water control valve are controlled according to the target outlet water temperature, the first temperature, the second temperature and the first flow rate to adjust the water flow rate of the room temperature water output circuit and the water flow rate of the hot water output circuit respectively, thereby regulating the mixing ratio of the room temperature water output by the room temperature water output circuit and the hot water output by the hot water output circuit. When the target outlet water temperature is less than or equal to the second preset value, the first outlet water control valve is controlled according to the target outlet water temperature, the first temperature, the second temperature, and the first flow rate to adjust the water flow rate of the hot water output circuit; When the target outlet water temperature is greater than or equal to the third preset value, the booster pump and the second outlet water control valve are controlled according to the target outlet water temperature, the first temperature, the second temperature and the first flow rate to adjust the water flow rate of the normal temperature water output channel.

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