Water purification system and method of controlling the same

Abstract

The application discloses a water purification system and a control method thereof, and relates to the technical field of water treatment. The water purification system comprises a heat exchange unit with a first channel and a second channel, heat exchange can be performed between fluids flowing through the first channel and the second channel; a water storage device capable of heating water, the water storage device can be in communication with one end of the first channel; and a water filtration unit, one end of the second channel can be in communication with an inlet of the water filtration unit. The application can solve the problem that the warm water output by the water purification system has not been subjected to high-temperature sterilization or boiling.

Description

Technical Field

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

[0002] In existing water purification systems, to provide users with directly hot water that has undergone high-temperature sterilization or boiling, a water storage device is typically included. The system feeds filtered water into this storage device, where it is then heated to a high temperature for sterilization or boiling before being stored for later use. Such systems typically output both hot water and room-temperature water directly filtered by the filtration unit. If a user requires warm water at a temperature between hot and room temperature, one existing method is to adjust the heating level of the storage device to only the user-set temperature. Another method is to mix the room-temperature water filtered by the filtration unit with the hot water in the storage device in a specific ratio to obtain warm water before supplying it to the user. However, the warm water produced by either of these methods has not undergone high-temperature sterilization or boiling, raising concerns among many users about its complete reliability and safety. Summary of the Invention

[0003] 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 system and its control method, which can solve the problem that the warm water output by the water purification system has not undergone high-temperature sterilization or boiling.

[0004] The specific technical solution of this invention is as follows:

[0005] A water purification system, the water purification system comprising:

[0006] A heat exchange unit having a first channel and a second channel, wherein heat exchange can be performed between the fluids flowing through the first channel and the second channel;

[0007] A water storage device capable of heating water, wherein the water storage device is connected to one end of the first channel;

[0008] A water filtration unit, wherein one end of the second channel can be connected to the inlet of the water filtration unit.

[0009] A water purification system control method, the water purification system comprising: a heat exchange unit having a first channel and a second channel, wherein heat exchange is possible between fluids flowing through the first channel and the second channel; a water storage device capable of heating water, the water storage device being connected to one end of the first channel; a water filtration unit, the inlet of the water filtration unit being connected to one end of the second channel; and a water outlet unit, the other end of the first channel being connected to the water outlet unit.

[0010] The water purification system control method includes:

[0011] Water that needs to be output at a temperature that meets the first preset condition has been detected.

[0012] Water from the water source flows into the second channel, and water flowing out of the second channel is transported to the inlet of the water filtration unit.

[0013] The hot water in the water storage device is controlled to be transported to the first channel of the heat exchange unit, and after flowing through the first channel, it is supplied to the outlet unit.

[0014] The technical solution of the present invention has the following significant beneficial effects:

[0015] When a user requires warm water at a temperature higher than room temperature, the water purification system of this application delivers purified water, which has already undergone high-temperature sterilization or boiling, from the water storage device to the first channel of the heat exchange unit. Cold water from the water source or filtered water at room temperature obtained from the water filtration unit passes through the second channel of the heat exchange unit. The cold water exchanges heat with the purified water, which has undergone high-temperature sterilization or boiling, output from the water storage device, thereby reducing the temperature of the purified water output from the water storage device to the user's desired temperature. The heated water flowing out from the second channel of the heat exchange unit is returned to the inlet of the water filtration unit for reuse, without being directly discharged. The return of the heated water to the inlet of the water filtration unit effectively increases the inlet temperature of the water filtration unit, thereby increasing the filtration rate of the water filtration unit. Through the above process, the water purification system in this application cools the boiled or heated purified water output from the water storage device through the heat exchange unit, thereby outputting warm water that has undergone high-temperature sterilization or boiling, meeting user needs and effectively avoiding user concerns about whether filtered water that has not undergone high-temperature sterilization or boiling is completely reliable and safe.

[0016] 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

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the water purification system in the first feasible implementation of the present invention.

[0019] Figure 2 This is a schematic diagram of the water purification system in a second feasible implementation of the present invention.

[0020] Figure 3 This is a schematic diagram of the water purification system in a third feasible implementation of the present invention.

[0021] Figure 4 This is a schematic diagram of the water purification system in the fourth feasible implementation of the present invention.

[0022] Figure 5 This is a schematic diagram of the water purification system in the fifth feasible implementation of the present invention.

[0023] The reference numerals in the above figures are as follows:

[0024] 1. Water storage device; 101. Liquid level sensor; 102. Exhaust mechanism; 103. Heating mechanism; 2. Water filtration unit; 201. Pre-filtration unit; 202. Filtration unit; 203. Post-filtration unit; 3. Heat exchange unit; 31. First channel; 32. Second channel; 4. Outlet unit; 5. First pressurization device; 6. Second pressurization device; 7. First temperature measuring device; 8. Third temperature measuring device; 9. Second pipeline; 10. First pipeline; 11. Fourth pipeline ; 12. First on / off valve; 13. Second on / off valve; 14. First check valve; 15. Fifth pipeline; 16. Inlet valve; 17. Drain end; 18. Third pipeline; 19. Second check valve; 20. Third check valve; 21. Fourth check valve; 22. Fifth check valve; 23. Sixth check valve; 24. Seventh check valve; 25. Integrated valve; 26. Eighth check valve; 27. Second temperature measuring device; 28. First control valve; 29. ​​Second control valve; 30. Water outlet control mechanism. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] In order to solve the problem that the warm water output by the water purification system has not undergone high-temperature sterilization or boiling, this application proposes a water purification system. Figure 1 This is a schematic diagram of the water purification system in a first feasible implementation according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the water purification system in a second feasible implementation according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the water purification system in a third feasible implementation according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the water purification system in the fourth feasible implementation of the present invention. Figure 5 This is a schematic diagram of the water purification system in the fifth feasible implementation of the present invention, as shown below. Figures 1 to 5 As shown, the water purification system may include: a heat exchange unit 3 having a first channel 31 and a second channel 32, wherein the fluids flowing through the first channel 31 and the second channel 32 are capable of exchanging heat; a water storage device 1 capable of heating water, wherein the water storage device 1 is connected to one end of the first channel 31; and a water filtration unit 2, wherein one end of the second channel 32 is connected to the inlet of the water filtration unit 2.

[0028] When a user requires warm water at a temperature higher than room temperature, the water purification system of this application delivers purified water, which has already undergone high-temperature sterilization or boiling, from the water storage device 1 to the first channel 31 of the heat exchange unit 3. Cold water from the water source or filtered water at room temperature obtained from the water filtration unit 2 passes through the second channel 32 of the heat exchange unit 3. The cold water exchanges heat with the purified water output from the water storage device 1, which has undergone high-temperature sterilization or boiling, in the heat exchange unit 3, thereby reducing the temperature of the purified water output from the water storage device 1 to the temperature required by the user. The heated water flowing out from the second channel 32 of the heat exchange unit 3 is returned to the inlet of the water filtration unit 2 for reuse, without being directly discharged. The return of the heated water to the inlet of the water filtration unit 2 effectively increases the inlet water temperature of the water filtration unit 2, thereby increasing the filtration rate of the water filtration unit 2. Through the above process, the water purification system in this application cools the boiled or heated purified water output from the water storage device 1 through the heat exchange unit 3, thereby outputting warm water that has undergone high-temperature sterilization or boiling, meeting user needs and effectively avoiding user concerns about whether filtered water that has not undergone high-temperature sterilization or boiling is completely reliable and safe.

[0029] To better understand the water purification system in this application, it will be further explained and described below. For example... Figures 1 to 5 As shown, the water purification system may include: a heat exchange unit 3, a water storage device 1, and a water filtration unit 2. The heat exchange unit 3 has a first channel 31 and a second channel 32. As a conventional heat exchanger device, the heat exchange unit 3 can exchange heat between the fluid flowing through the first channel 31 and the fluid flowing through the second channel 32, thereby cooling the fluid with the higher temperature flowing through the first channel 31 and heating the fluid with the lower temperature flowing through the second channel 32.

[0030] like Figures 1 to 5As shown, the water storage device 1 is used to store the input filtered water. It can also heat the water to achieve boiling, high-temperature sterilization, or heating to a user-set temperature, such as 60, 70, 80, or 90 degrees Celsius. It should be noted that boiling can mean heating the water to a complete boil or heating it to near 100 degrees Celsius without fully boiling. For example, heating can typically be stopped at 97, 98, or 99 degrees Celsius to avoid the potential danger of large amounts of gas being generated after complete boiling and unable to dissipate quickly. The water storage device 1 has a heating mechanism 103 to heat the water in it. The water storage device 1 can be connected to one end of the first channel 31, allowing the heated filtered water to be input into the first channel 31. Alternatively, a level sensor 101 can be installed on the water storage device 1 to detect the water level. The water storage device 1 is equipped with an exhaust mechanism 102, which is used to exhaust the gas inside the water storage device 1.

[0031] like Figures 1 to 5 As shown, the water filtration unit 2 is used to filter water input from a water source to obtain filtered water. The water source is generally tap water, but it can also be water from other sources. As a feasible option, the water filtration unit 2 may include a filtration unit 202 capable of discharging wastewater, such as a reverse osmosis membrane filtration unit 202, a nanofiltration membrane filtration unit 202, etc. In this embodiment, the wastewater end of the filtration unit 202 is connected to the drain end 17 via a wastewater ratio control device. Of course, to improve the filtration effect, the water filtration unit 2 may include a pre-filtration unit 201 and / or a post-filtration unit 203. The pre-filtration unit 201 is mainly used to reduce or remove scale, and the post-filtration unit 203 is mainly used to remove organic matter, residual chlorine, and other radioactive substances from the water, and also has decolorization and odor removal functions. A pre-filter unit 201 is located upstream of filter unit 202, and a post-filter unit 203 is located downstream of filter unit 202. Water from the source passes through the pre-filter unit 201 and then flows into the raw water end of filter unit 202. Filtered water obtained by filter unit 202 is discharged from the filtered water end and flows to the post-filter unit 203. Wastewater generated by filter unit 202 is discharged from the wastewater end. The water filtration unit 2 in this application may include at least one of the above-mentioned filter unit 202, pre-filter unit 201, and post-filter unit 203.

[0032] like Figures 1 to 5 As shown, the water purification system may include: a water outlet unit 4, the other end of the first channel 31 being connected to the water outlet unit 4. The water outlet unit 4 is used to connect to the water outlet control mechanism 30, which may be, for example, a faucet or other component.

[0033] like Figures 1 to 5As shown, one end of the second channel 32 can be connected to the inlet of the water filtration unit 2. (As indicated...) Figure 2 As shown, the water source can be connected to the other end of the second channel 32. When the user needs warm water at a temperature higher than room temperature, the water purification system of this application delivers purified water that has been sterilized or boiled at high temperature in the water storage device 1 to the first channel 31 of the heat exchange unit 3. The cold water from the water source passes through the second channel 32 of the heat exchange unit 3, where it exchanges heat with the purified water that has been sterilized or boiled at high temperature output from the water storage device 1. This causes the temperature of the purified water that has been sterilized or boiled at high temperature output from the water storage device 1 to drop to the temperature required by the user. The heated water flowing out of the second channel 32 of the heat exchange unit 3 flows back to the inlet of the water filtration unit 2 for reuse, without needing to be directly discharged. The heated water flowing back to the inlet of the water filtration unit 2 can effectively increase the inlet water temperature of the water filtration unit 2, thereby increasing the filtration rate of the water filtration unit 2.

[0034] In another feasible implementation, such as Figures 1 to 3 As shown, the outlet of water filtration unit 2 can be connected to the other end of the second channel 32. (As indicated...) Figure 2 As shown, the water source can be connected to the other end of the second channel 32, or, as... Figure 1 and Figure 3 As shown, the water source can be connected to the inlet of water filtration unit 2.

[0035] like Figure 1 As shown, as feasible, the water filtration unit 2 and the second channel 32 form a first circulating water path, and a second pressurizing device 6 is provided on the first circulating water path; or, as... Figure 3 As shown, as an feasible embodiment, some filtration units in water filtration unit 2 form a first circulating water path with the second channel 32. A second pressurizing device 6 is provided on the first circulating water path. For example, the pre-filtration unit 201 and the second channel 32 form the first circulating water path. When the second pressurizing device 6 is turned on, it enables the water in the first circulating water path to circulate. When the user needs warm water at a temperature higher than room temperature, the water purification system of this application delivers purified water that has been sterilized or boiled at high temperature in the water storage device 1 to the first channel 31 of the heat exchange unit 3. The filtered water at room temperature obtained after filtration by water filtration unit 2 or pre-filtration unit 201 passes through the second channel 32 of the heat exchange unit 3. The purified water that has been sterilized or boiled at high temperature and is output from the water storage device 1 exchanges heat in the heat exchange unit 3, thereby reducing the temperature of the purified water that has been sterilized or boiled at high temperature and output from the water storage device 1 to the temperature required by the user. The heated water flowing out of the second channel 32 of the heat exchange unit 3 is returned to the inlet of the water filter unit 2 or the pre-filter unit 201 for recycling. It does not need to be directly discharged. The return of the heated water to the inlet of the water filter unit 2 effectively increases the inlet water temperature of the water filter unit 2, thereby increasing the filtration rate of the water filter unit 2. For example... Figures 1 to 3 As shown, the water in the first circulating water path can be replenished by inputting water to the other end of the second channel 32, or by inputting water to the inlet of the water filtration unit 2.

[0036] Preferably, the outlet of the second booster device 6 can be connected to the raw water end of the filter unit 202, and the wastewater end of the filter unit 202 can be connected to the inlet of the second booster device 6.

[0037] Alternatively, one end of the second channel 32 can be connected to the drain end 17. When the temperature of the water flowing through the second channel 32 becomes too high, one end of the second channel 32 is connected to the drain end 17 to drain the water that is too hot, thus preventing it from damaging the filter unit 202.

[0038] In another feasible implementation, such as Figure 4 As shown, the inlet of water filtration unit 2 can be connected to the other end of the second channel 32. A water source can be connected to the other end of the second channel 32, or the water source can be connected to the inlet of water filtration unit 2. The second pressurizing device 6 is located upstream of water filtration unit 2. One end of the second channel 32 can be connected to the inlet of the second pressurizing device 6, and the other end of the second channel 32 can be connected to the outlet of the second pressurizing device 6, that is, the other end of the second channel 32 can be connected between the outlet of the second pressurizing device 6 and the inlet of water filtration unit 2. The second pressurizing device 6 and the second channel 32 form a first circulating water path. When the second pressurizing device 6 is turned on, it enables the water in the first circulating water path to circulate. As a feasible alternative, such as... Figure 4As shown, the water purification system may include a pipeline control mechanism for controlling the connection or disconnection of the outlet of the second booster device 6 with the second channel 32, and the connection or disconnection of the outlet of the second booster device 6 with the inlet of the water filtration unit 2. For example, the pipeline control mechanism may be a second control valve 29, whose three ports are respectively connected to the inlet of the water filtration unit 2, the outlet of the second booster device 6, and the second channel 32. When the ambient temperature filtered water generated at the outlet of the water filtration unit 2 is supplied to the outlet unit 4, the pipeline control mechanism controls the outlet of the second booster device 6 to disconnect from the second channel 32, and the outlet of the second booster device 6 to connect with the inlet of the water filtration unit 2. When the second booster device 6 and the second channel 32 form a first circulating water path, and the water circulates in the first circulating water path, the pipeline control mechanism controls the outlet of the second booster device 6 to connect with the second channel 32, and the outlet of the second booster device 6 to disconnect from the inlet of the filtration unit 202. In this embodiment, there is no water filter unit 2 in the first circulating water path, and the resistance in the first circulating water path is small. Therefore, controlling the power or speed of the second booster device 6 can conveniently and better control the flow rate of water in the first circulating water path. This allows for better and more accurate control of the cooling degree of the heat exchange unit 3 on the hot water flowing through the first channel 31 by controlling the power or speed of the second booster device 6. Unlike when there is a water filter unit 2 in the first circulating water path, it is not easy to accurately control and significantly increase or decrease the flow rate of water in the first circulating water path by controlling the power or speed of the second booster device 6.

[0039] In another feasible implementation, such as Figure 5As shown, the interface for connecting to the water source connects to two water paths. One water path connects to the inlet of the second channel 32 and the other directly to the inlet of the water filter unit 2. Water flowing in from the water source can pass through the second channel 32 to cool the hot water flowing through the first channel 31. This water can be discharged from the drain end 17 via the third pipeline 18. The third pipeline 18 can be connected between the inlet of the water filter unit 2 and one end of the second channel 32. When the water filter unit 2 has a filter unit 202, the third pipeline 18 can be connected between the inlet of the filter unit 202 and one end of the second channel 32. Water flowing in from the water source can also flow to the inlet of the water filter unit 2 via the other path. When it is necessary to cool the hot water flowing through the first channel 31, the water flowing in from the water source must flow through at least one path through the second channel 32. The water flowing in from the water source may or may not flow through the other water path; no limitation is made here. When the water filtration unit 2 needs to generate filtered water, the water flowing in from the water source must flow to the inlet of the water filtration unit 2 through at least one other path. The water flowing in from the water source may or may not flow through the second channel 32; no limitation is made here. When the water flowing in from the water source simultaneously flows through the second channel 32 through one path and to the inlet of the water filtration unit 2 through another path, the water purification system can simultaneously cool the hot water flowing through the first channel 31 and enable the water filtration unit 2 to generate filtered water for supply to the water storage device 1 or the outlet unit 4.

[0040] As a feasible option, such as Figure 5 As shown, the water purification system may include a pipeline control mechanism for controlling whether the water from the source flows to the second channel 32 or directly to the inlet of the filter unit 202. For example, the pipeline control mechanism may be a second control valve 29, whose three ports are respectively connected to the inlet of the water filter unit 2, another water path, and the other end of the second channel 32. A fifth check valve 22 may be provided between the second control valve 29 and the other end of the second channel 32, allowing the fifth check valve to be connected from the other end of the second channel 32 to the second control valve 29. The pipeline control mechanism can also be implemented in other ways, and no limitations are imposed on it in this application.

[0041] like Figures 1 to 5As shown, the water purification system may include a first booster device 5, which is installed on the pipeline from the water storage device 1 through the first channel 31 to the outlet unit 4. When the first booster device 5 is activated, it can quickly pump water from the water storage device 1 and deliver it to the outlet unit 4. In order to better control whether the water in the water storage device 1 flows to the first channel 31, the water purification system may include a first on / off valve 12 for controlling the opening and closing of the first channel 31. That is, the first on / off valve 12 is used to control whether the water in the water storage device 1 can flow out through the first channel 31, and the first on / off valve 12 can be set at any position between the water storage device 1, the first channel 31, and the outlet unit 4.

[0042] The water purification system can have a first working state. In this state, the second booster device 6 drives the water in the first circulating water path to circulate, and the first booster device 5 delivers hot water from the storage device 1 to the outlet unit 4. The water at room temperature exchanges heat with the purified water output from the storage device 1, which has undergone high-temperature sterilization or boiling, in the heat exchange unit 3. This reduces the temperature of the purified water output from the storage device 1 to the temperature required by the user. The heated water flowing out from the second channel 32 of the heat exchange unit 3 flows back to the inlet of the water filtration unit 2 for reuse, circulating in the first circulating water path, without being directly discharged. Through this process, the water purification system of this application cools the purified water output from the storage device 1, which has undergone high-temperature sterilization or boiling, through the heat exchange unit 3, thereby outputting warm water that has undergone high-temperature sterilization or boiling, meeting user needs and effectively avoiding user concerns about the complete reliability and safety of filtered water that has not undergone high-temperature sterilization or boiling.

[0043] When the water filtration unit includes a filter unit 202, a pre-filter unit 201, and a post-filter unit 203, the entire water filtration unit stores a relatively large volume of water. When it is necessary to cool the purified water output from the water storage device 1, which has undergone high-temperature sterilization or boiling, if the hot water output from the water storage device 1 is relatively small, the heat that the first circulating water path can obtain in the heat exchange unit 3 will also be very small. Since the first circulating water path stores a relatively large volume of water, it does not require additional water input during circulation, and the water in the first circulating water path does not need to be discharged. Therefore, the heat absorbed by the water in the first circulating water path in the heat exchange unit 3 can be retained in the water in the first circulating water path and will not be lost due to the discharge of additional water.

[0044] As an option, the water purification system may include: a first temperature measuring device 7 for measuring the temperature of the water in the water storage device 1. When the water in the water storage device 1 is heated by the heating mechanism 103, and the temperature of the water in the water storage device 1 measured by the first temperature measuring device 7 meets the requirements, the water purification system controls the heating mechanism 103 to stop heating. The water purification system may include: a second temperature measuring device 27 for measuring the temperature of the inlet water of the water filtration unit 2; and a control unit that controls the power of the first booster device 5 and / or the second booster device 6 based on at least some of the parameters among the first temperature measured by the first temperature measuring device 7, the second temperature measured by the second temperature measuring device 27, the heat exchange performance parameters of the heat exchange unit 3, and the temperature value of the water that needs to be output to meet the first preset condition. The second temperature measuring device 27 may be located upstream of the water filtration unit 2, for example, near the inlet of the water filtration unit 2. The higher the first temperature measured by the first temperature measuring device 7, the lower the power of the first booster device 5 and the higher the power of the second booster device 6, so as to increase the flow rate of the fluid in the second channel 32 and increase the cooling effect on the fluid in the first channel 31. The higher the second temperature measured by the second temperature measuring device 27, the lower the power of the first booster device 5 and the higher the power of the second booster device 6, so as to increase the flow rate of the fluid in the second channel 32 and increase the cooling effect on the fluid in the first channel 31. The higher the temperature of the water that needs to meet the first preset temperature condition, the higher the power of the first booster device 5 and the lower the power of the second booster device 6.

[0045] As a feasible option, such as Figures 1 to 5 As shown, the water purification system may include a third temperature measuring device 8 for measuring the outlet water temperature at outlet unit 4. The control unit adjusts the power of the first booster device 5 and / or the second booster device 6 based on the outlet water temperature at outlet unit 4 measured by the third temperature measuring device 8.

[0046] As a feasible option, such as Figures 1 to 3 As shown, the second temperature measuring device 27 can be installed at the inlet of the pre-filter unit 201. The downstream of the second temperature measuring device 27 can be connected to the drain end 17 via a third pipeline 18, for example, the third pipeline 18 can be connected to the outlet of the pre-filter unit 201. A seventh check valve 24, which guides from the second channel 32 to the drain end 17, and a fourth on / off valve, which controls the connection between the second channel 32 and the drain end 17, can be installed on the third pipeline 18. Alternatively, as feasible... Figure 1 As shown, the fourth on / off valve and the wastewater ratio control device can be integrated into a single integrated valve 25 to control the opening and closing of the second channel 32 and the drain end 17, thereby controlling the wastewater ratio at the wastewater end of the filter unit 202. An eighth check valve 26 can be installed at the drain end 17 to prevent externally discharged water from flowing back. Alternatively, as feasible... Figure 4 As shown, the second temperature measuring device 27 can be installed in the first circulating water path, for example, near the inlet of the second booster device 6 and between it and the second control valve 29. The third pipeline 18 can be connected between the outlet of the second booster device 6 and the second control valve 29. When the temperature of the water flowing through the second channel 32, as measured by the second temperature measuring device 27, is too high, one end of the second channel 32 is connected to the drain end 17 via the third pipeline 18 to drain the excessively hot water and prevent damage to the filter unit 202. At this time, water can be replenished to the first circulating water path via a water source.

[0047] In order to enable the water filtration unit 2 to replenish filtered water to the water storage device 1, as a feasible method is... Figures 1 to 3 As shown, the outlet of the water filtration unit 2 can be connected to the water storage device 1 via the first pipeline 10. For example, the water purification system may include a second on / off valve 13 for controlling the connection between the outlet of the water filtration unit 2 and the water storage device 1. The second on / off valve 13 may be installed on the first pipeline 10. When the second on / off valve 13 is open, the outlet of the water filtration unit 2 is connected to the water storage device 1; when the second on / off valve 13 is closed, the outlet of the water filtration unit 2 is disconnected from the water storage device 1.

[0048] To prevent hot water in the water storage device 1 from flowing back to the outlet of the water filter unit 2 and potentially damaging it, as a feasible measure, such as... Figures 1 to 5 As shown, the water purification system may include: a first check valve 14 installed on the first pipeline 10, the first check valve 14 being connected from the outlet of the water filtration unit 2 to the water storage device 1.

[0049] In order to allow the hot water in the water storage device 1 to be directly delivered to the water outlet unit 4, so that the user can obtain hot water without any cooling, as a feasible method is... Figures 1 to 5As shown, the outlet of the first booster device 5 can be connected to the outlet unit 4 via the fourth pipeline 11. Thus, the first booster device 5 can supply hot water from the water storage device 1 to the fourth pipeline 11 or to the first channel 31. For example, one end of the fourth pipeline 11 is connected between the outlet of the first booster device 5 and the first channel 31, and the other end of the fourth pipeline 11 is connected between the first channel 31 and the outlet unit 4. To control whether the water output from the first booster device 5 is supplied to the fourth pipeline 11 or the first channel 31, an on / off valve can be installed on the fourth pipeline 11, either between one end of the fourth pipeline 11 and the first channel 31 or between the other end of the fourth pipeline 11 and the first channel 31. Alternatively, a control valve can be installed at the connection point between the other end of the fourth pipeline 11 and the first channel 31 and the outlet unit 4. This control valve can control the connection and disconnection between the outlet unit 4 and the fourth pipeline 11, and also control the connection and disconnection between the outlet unit 4 and the first channel 31. As a feasible option, a control valve is installed at one end of the fourth pipeline 11, connecting the outlet of the first booster device 5 and the first channel 31. This control valve can control the connection and disconnection between the outlet of the first booster device 5 and the fourth pipeline 11, and also between the outlet of the first booster device 5 and the first channel 31. In this embodiment, a third on / off valve is installed between one end of the fourth pipeline 11 and the first channel 31, and a first control valve 28 is installed at the other end of the fourth pipeline 11, connecting the first channel 31 and the outlet unit 4. This first control valve 28 can control the connection and disconnection between the outlet unit 4 and the fourth pipeline 11, and also between the outlet unit 4 and the first channel 31. To prevent backflow of water in the first channel 31, a second one-way valve 19 can be installed at either end of the first channel 31. The second one-way valve 19 connects from the outlet of the first booster device 5 towards the outlet unit 4.

[0050] In order to supply the room-temperature filtered water generated by water filtration unit 2 to water outlet unit 4, as a feasible method is... Figure 1 As shown, the outlet of water filtration unit 2 can be connected to outlet unit 4 via the fifth pipeline 15. An inlet valve 16 can be installed between the water source and the inlet of water filtration unit 2 to control the flow between them. Alternatively, as... Figure 2 and Figure 3 As shown, an inlet valve 16 can be installed between the water source and the other end of the second channel 32 to control the flow between the water source and the water filtration unit 2. A sixth check valve 23, which directs the flow from the water source to the inlet of the water filtration unit 2, can also be installed at the inlet valve 16. One end or the other end of the second channel 32 is connected downstream of the sixth check valve 23. Alternatively, as feasible... Figure 1 and Figure 2As shown, the water purification system may include a pipeline control mechanism for controlling the connection or disconnection of the outlet of water filtration unit 2 with the second channel 32, and the connection or disconnection of the outlet of water filtration unit 2 with the outlet unit 4. The pipeline control mechanism may be a second control valve 29, whose three ports are respectively connected to the outlet of water filtration unit 2, the fifth pipeline 15, and the second channel 32. When the ambient temperature filtered water generated at the outlet of water filtration unit 2 is supplied to the outlet unit 4, the pipeline control mechanism controls the outlet of water filtration unit 2 to disconnect from the second channel 32, and connects the outlet of water filtration unit 2 to the outlet unit 4. In other feasible embodiments, the pipeline control mechanism may include an on / off valve installed on the fifth pipeline 15; or an on / off valve installed at either end of the second channel 32. To prevent water backflow, it is feasible to install a fourth check valve 21 on the fifth pipeline 15, which connects the outlet of the water filter unit 2 to the outlet unit 4; and a fifth check valve 22, which connects the outlet of the water filter unit 2 to the inlet of the water filter unit 2, can be installed at either end of the second channel 32. Alternatively, as... Figure 3 As shown, the water purification system may include a pipeline control mechanism for controlling the connection or disconnection of the outlet of the pre-filter unit 201 with the second channel 32, and the connection or disconnection of the outlet of the pre-filter unit 201 with the filter unit 202. The pipeline control mechanism may be a second control valve 29, whose three ports are respectively connected to the inlet of the filter unit 202, the second channel 32, and the outlet of the pre-filter unit 201. When the ambient temperature filtered water generated at the outlet of the water filter unit 2 is supplied to the outlet unit 4, the pipeline control mechanism controls the outlet of the pre-filter unit 201 to disconnect from the second channel 32, and the outlet of the pre-filter unit 201 to connect with the inlet of the filter unit 202. At this time, the outlet of the water filter unit 2 is connected to the outlet unit 4. In other feasible embodiments, the implementation of the pipeline control mechanism can be the same as the principle described above, and will not be repeated here. To prevent water backflow, a fourth check valve 21 can be installed on the fifth pipeline 15, connecting the outlet of the water filter unit 2 to the outlet unit 4; a fifth check valve 22 can be installed at either end of the second channel 32, connecting the outlet of the pre-filter unit 201 to the inlet of the pre-filter unit 201. When the pre-filter unit 201 and the second channel 32 form the first circulating water path, as water circulates in the first circulating water path, the pipeline control mechanism controls the outlet of the pre-filter unit 201 to connect with the second channel 32, and disconnects the outlet of the pre-filter unit 201 from the inlet of the filter unit 202.

[0051] Alternatively, the outlet unit 4 may include a first outlet. The other ends of the fifth pipeline 15, the fourth pipeline 11, and the first channel 31 are all connected to the first outlet via a first control valve 28. The first control valve 28 has four ports: three ports are connected to the other ends of the fifth pipeline 15, the fourth pipeline 11, and the first channel 31, respectively, and the last port is connected to the first outlet. The first control valve 28 can also control the connection between the fifth pipeline 15 and the first outlet. When the ambient temperature filtered water generated by the water filtration unit 2 is supplied to the first outlet, the fifth pipeline 15 is connected to the first outlet, and the first outlet is disconnected from the other ends of the fourth pipeline 11 and the first channel 31.

[0052] Alternatively, the outlet unit 4 may include a first outlet and a second outlet. The water storage device 1 can be connected to the second outlet via the fourth pipeline 11; the other end of the first channel 31 can be connected to the first outlet. The outlet unit 4 may also include a third outlet, which is connected to the fifth pipeline 15.

[0053] As a feasible option, such as Figure 1 As shown, the outlet unit 4 may include a first outlet and a second outlet. The second outlet is connected to the fifth pipeline 15. The first control valve 28 controls the connection and disconnection between the outlet unit 4 and the fourth pipeline 11, and also controls the connection and disconnection between the outlet unit 4 and the first channel 31. The two inlets of the first control valve 28 are respectively connected to the other ends of the fourth pipeline 11 and the first channel 31, and the outlet of the first control valve 28 is connected to the first outlet. The first outlet is used to output hot or warm water, and the second outlet is used to output room temperature water.

[0054] As a feasible option, such as Figures 1 to 3 As shown, the other end of the first channel 31 can be connected to the water storage device 1 via the second pipeline 9. The water filtration unit 2 and the second channel 32 can form a first circulating water path. The water storage device 1, the first channel 31, and the second pipeline 9 form a second circulating water path. As a feasible option, a third check valve 20 can be installed on the second pipeline 9, which leads from the other end of the first channel 31 towards the water storage device 1.

[0055] The water purification system has a second operating state. In this state, the first booster device 5 circulates the hot water in the second circulating water path, and the second booster device 6 drives the water in the first circulating water path to circulate. When the temperature of the water input to the water purification system is low, such as below or equal to a second preset temperature, in order to raise the temperature of the water entering the water filtration unit 2, thereby increasing the filtration rate and preventing the water filtration unit 2 from freezing, at least a portion of the filtered water output from the water filtration unit 2 can be input into the second channel 32. Simultaneously, the water in the water storage device 1 is circulated in the second circulating water path to heat the filtered water in the second channel 32. The heated filtered water mixes with the water input to raise the temperature of the water entering the inlet of the water filtration unit 2. This function can be performed when replenishing the water storage device 1 with filtered water, or when the water filtration unit 2 generates ambient temperature filtered water and supplies it to the outlet unit 4. Performing the above functions when replenishing filtered water to the water storage device 1 can shorten the time it takes to fill the device and increase the temperature of the filtered water added to it. This, in turn, shortens the time it takes for the device to heat to boiling, to high-temperature sterilization, or to the user-set temperature. Overall, it reduces the waiting time for users to obtain water after the water in the storage device 1 is depleted during peak water usage periods, significantly improving the user experience. Performing the above functions when the water filtration unit 2 generates ambient temperature filtered water and supplies it to the outlet unit 4 can increase the temperature of the generated filtered water and improve the water production rate, reducing the waiting time for users to obtain water.

[0056] The control unit can control the power of the first pressurizing device 5 and / or the second pressurizing device 6 based on at least some of the parameters among the first temperature measured by the first temperature measuring device 7, the second temperature measured by the second temperature measuring device 27, and the heat exchange performance parameters of the heat exchange unit 3, thereby controlling the temperature of the water entering the inlet of the water filtration unit 2 after the heated filtered water is mixed with the water input from the water source. The temperature of the water entering the inlet of the water filtration unit 2 after the heated filtered water is mixed with the water input from the water source is positively correlated with the first temperature measured by the first temperature measuring device 7, positively correlated with the second temperature measured by the second temperature measuring device 27, positively correlated with the power of the first pressurizing device 5, negatively correlated with the power of the second pressurizing device 6, and positively correlated with the heat exchange performance parameters of the heat exchange unit 3. If the temperature of the water entering the inlet of the water filtration unit 2 after the heated filtered water is mixed with the water input from the water source is determined, then the power of the first booster device 5 is negatively correlated with the first temperature measured by the first temperature measuring device 7 and negatively correlated with the second temperature measured by the second temperature measuring device 27, and the power of the second booster device 6 is positively correlated with the first temperature measured by the first temperature measuring device 7 and negatively correlated with the second temperature measured by the second temperature measuring device 27.

[0057] Alternatively, the water purification system may include a fourth temperature measuring device for measuring the temperature of the environment in which the water purification system is located. When the temperature of the environment in which the water purification system is located, as measured by the fourth temperature measuring device, is lower than or equal to a first preset temperature, the water purification system can enter a second operating state, thereby heating the water in the water filtration unit 2, and also heating various locations in the first and second circulating water paths to prevent freezing and damage to the filter membrane of the water filtration unit 2, and to prevent the water path from freezing and cracking. The first preset temperature can be a set temperature value around 0 degrees Celsius or lower than 0 degrees Celsius.

[0058] When the water purification system needs to output room temperature water, the water purification system control method of this application may include the following steps:

[0059] When water meeting the third preset temperature requirement is detected, the water filtration unit 2 generates filtered water and delivers it to the outlet unit 4 via the fifth pipeline 15. Specifically, the inlet valve 16 is opened, the second booster device 6 operates, and the outlet of the water filtration unit 2, the fifth pipeline 15, and the outlet unit 4 are connected. This allows the water filtration unit 2 to receive water from the source, filter it, and deliver the filtered water to the outlet unit 4 via the fifth pipeline 15. The outlet control mechanism 30 then discharges filtered water meeting the third preset temperature requirement. Alternatively, the pipeline control mechanism can disconnect the outlet of the water filtration unit 2 from the second channel 32 and connect the outlet of the water filtration unit 2 to the outlet unit 4. Simultaneously, the second on / off valve 13 on the first pipeline 10 can be closed. Water meeting the third preset temperature requirement at this point is understood as room temperature water.

[0060] When the water purification system needs to output hot water, the water purification system control method of this application may include the following steps:

[0061] When water requiring a temperature that meets the second preset condition is detected, hot water from the storage device 1 is supplied to the outlet unit 4 via the fourth pipeline 11. Specifically, when water requiring a temperature that meets the second preset condition is detected, the level sensor 101 first checks whether there is hot water in the storage device 1, and the first temperature measuring device 7 measures whether the water in the storage device 1 meets the second preset condition. If both conditions are met, the storage device 1 is connected to the outlet unit 4 via the fourth pipeline 11, the first channel 31 is disconnected from the outlet unit 4 or the storage device 1, and the first booster device 5 is activated, thereby supplying hot water from the storage device 1 to the outlet unit 4 via the fourth pipeline 11. During the above process, the first on / off valve 12 can be closed, the first control valve 28 controls the connection between the outlet unit 4 and the fourth pipeline 11, and controls the disconnection between the outlet unit 4 and the first channel 31.

[0062] If the water level sensor 101 detects that the water level in the water storage device 1 meets the preset level, but the first temperature measuring device 7 measures that the water level in the water storage device 1 does not meet the second preset condition, then the heating mechanism 103 of the water storage device 1 can be controlled to heat the water. When the water is heated to meet the second preset condition, the hot water in the water storage device 1 is then transported to the outlet unit 4 through the fourth pipeline 11.

[0063] If the water level sensor 101 detects that the water level in the water storage device 1 does not meet the preset level and water cannot be output, a water replenishment operation is performed. The water replenishment operation may include: controlling the inlet valve 16 to open, the second booster device 6 to operate, and connecting the outlet of the water filtration unit 2 to the water storage device 1 via the first pipeline 10. Alternatively, the second on / off valve 13 on the first pipeline 10 can be opened. The outlet of the water filtration unit 2 can be disconnected from the second channel 32 and the outlet unit 4. The water filtration unit 2 receives water from the water source, filters it to obtain filtered water, and then transports the filtered water to the water storage device 1 via the first pipeline 10. During the water replenishment process, the heating mechanism 103 of the water storage device 1 can be controlled to heat the water. After the water replenishment and heating of the water in the water storage device 1 are completed, the hot water in the water storage device 1 is then transported to the outlet unit 4 via the fourth pipeline 11. After the water replenishment is completed, the control inlet valve 16 can be closed, the second booster device 6 can be closed, and the outlet of the water filter unit 2 can be disconnected from the water storage device 1.

[0064] In the above process, water that meets the second preset condition is understood as water in the water storage device 1 being heated to the user-set temperature or the temperature maintained after boiling. The temperature under the second preset condition is higher than the temperature under the third preset condition.

[0065] When the water purification system needs to output warm water, the water purification system control method of this application may include the following steps:

[0066] Water that needs to be output at a temperature that meets the first preset condition has been detected. The temperature under the first preset condition is lower than the temperature under the second preset condition, but higher than the temperature under the third preset condition.

[0067] Water from the water source flows into the second channel 32, and the water flowing out of the second channel 32 is transported to the inlet of the water filtration unit 2. When the outlet of the water filtration unit 2 can connect with the other end of the second channel 32, the water filtration unit 2 can be controlled to generate filtered water, which is then transported to the second channel 32 of the heat exchange unit 3. Specifically, the inlet valve 16 is opened, the second pressurization device 6 is activated, the outlet of the water filtration unit 2 is connected to the second channel 32 of the heat exchange unit 3, and the second channel 32 is connected to the inlet of the water filtration unit 2. In this step, as... Figure 1 and Figure 2As shown, filtered water or water from the water source exchanges heat with hot water in the first channel 31 in the second channel 32 to raise its temperature. The heated water then flows back to the inlet of the water filtration unit 2. When the temperature of the water about to flow into the inlet of the water filtration unit 2, as measured by the second temperature measuring device 27, exceeds the set temperature, the second channel 32 is connected to the drain end 17 to drain the overheated water. For example, the fourth on / off valve on the third pipeline 18 is opened. The set temperature specifically refers to the temperature that will not damage the filter membrane of the filter unit 202; exceeding the set temperature may damage the filter membrane of the filter unit 202. The set temperature can generally be selected between 40 degrees Celsius and 50 degrees Celsius. When the temperature of the water about to flow into the inlet of the water filtration unit 2, as measured by the second temperature measuring device 27, does not exceed the set temperature, the second channel 32 is disconnected from the drain end 17, and the water filtration unit 2 and the second channel 32 form a first circulating water path. As a feasible option, the water flowing out of the second channel 32 can flow together with the water input from the water source into the filter unit 202 of the water filter unit 2, flowing in the first circulating water path. When the filter unit 202 filters again, some of the water will become wastewater and be discharged from the wastewater end of the filter unit 202 through the drain end 17. As a feasible option, such as... Figure 3 As shown, when the outlet of the pre-filter unit 201 can be connected to the other end of the second channel 32, the pre-filter unit 201 can be controlled to generate filtered water and deliver the filtered water to the second channel 32 of the heat exchange unit 3.

[0068] The hot water in the water storage device 1 is supplied to the first channel 31 of the heat exchange unit 3, and then to the outlet unit 4 after flowing through the first channel 31. Specifically, the water level sensor 101 first detects whether there is hot water in the water storage device 1, and the first temperature measuring device 7 measures whether the water in the water storage device 1 meets the second preset condition. If both conditions are met, the water storage device 1 is connected to the first channel 31, and the first channel 31 is connected to the outlet unit 4. The first pressurization device 5 is then activated to supply the hot water in the water storage device 1 to the first channel 31 of the heat exchange unit 3, and then to the outlet unit 4 after flowing through the first channel 31. The hot water in the water storage device 1 is cooled by the water in the second channel 32 as it flows through the first channel 31 of the heat exchange unit 3, and finally, the outlet unit 4 can output warm water.

[0069] If the level sensor 101 detects that the water level in the water storage device 1 meets the preset level, but the first temperature measuring device 7 detects that the water level in the water storage device 1 does not meet the second preset condition, then the heating mechanism 103 of the water storage device 1 can be controlled to heat the water. Once the water is heated to meet the second preset condition, the hot water in the water storage device 1 is then transported to the outlet unit 4 through the fourth pipeline 11. If the level sensor 101 detects that the water level in the water storage device 1 does not meet the preset level and water cannot be output, then a water replenishment operation is performed, and the replenished water is heated. The specific steps are the same as above and will not be repeated here.

[0070] In the above process, the water purification system control method may further include the following steps: controlling the power of the first booster device 5 and / or the second booster device 6 based on at least some of the following parameters: the first temperature measured by the first temperature measuring device 7, the second temperature measured by the second temperature measuring device 27, the heat exchange performance parameters of the heat exchange unit 3, and the temperature value of the water whose output temperature needs to meet the first preset condition. The first temperature measured by the first temperature measuring device 7 is negatively correlated with the power of the first booster device 5, and positively correlated with the power of the second booster device 6. The second temperature measured by the second temperature measuring device 27 is positively correlated with the power of the second booster device 6, and negatively correlated with the power of the first booster device 5. The temperature value of the water whose output temperature needs to meet the first preset condition is positively correlated with the power of the first booster device 5, and negatively correlated with the power of the second booster device 6. The better the heat exchange performance parameters of the heat exchange unit 3, the greater the power of the first booster device 5 can be, and the smaller the power of the second booster device 6 can be.

[0071] Once the water temperature at outlet unit 4 stabilizes, the power of the first booster device 5 and / or the second booster device 6 is adjusted based on the water temperature at outlet unit 4 measured by the third temperature measuring device 8. If the water temperature at outlet unit 4 measured by the third temperature measuring device 8 is higher than the water temperature value under the first preset condition, then the power of the first booster device 5 is reduced, and / or the power of the second booster device 6 is increased; if the water temperature at outlet unit 4 measured by the third temperature measuring device 8 is lower than the water temperature value under the first preset condition, then the power of the first booster device 5 is increased, and / or the power of the second booster device 6 is decreased.

[0072] The water purification system control method of the water purification system in this application may include the following steps:

[0073] When the temperature of the environment where the water purification system is located, as measured by the fourth temperature measuring device, is lower than or equal to the first preset temperature, the hot water in the water storage device 1 is controlled to circulate in the second circulating water path, and the filtered water generated by the water filtration unit 2 circulates in the first circulating water path. Specifically, the first booster device 5 can be turned on, the first on / off valve 12 can be turned on, the inlet valve 16 can be turned on, and the outlet of the water filtration unit 2 can be connected to the second channel 32 through the second control valve 29.

[0074] The above steps can be performed independently by the water purification system, or when the water purification system outputs room temperature water, or when it outputs warm water, or when it replenishes water to the water storage device 1.

[0075] When the water filtration unit 2 generates filtered water and supplies it to the water storage device 1 or the outlet unit 4, and the temperature of the inlet water of the water filtration unit 2 measured by the second temperature measuring device 27 is lower than or equal to the second preset temperature, the hot water in the water storage device 1 is controlled to circulate in the second circulating water path. At least a portion of the filtered water generated by the water filtration unit 2 flows back to the water filtration unit 2 after passing through the second channel 32. Specifically, when the water filtration unit 2 generates filtered water and supplies it to the water storage device 1 or the outlet unit 4, the second booster device 6 is already in operation, and the inlet valve 16 is already in the open state. Subsequently, when the temperature of the inlet water of the water filtration unit 2 measured by the second temperature measuring device 27 is lower than or equal to the second preset temperature, the first booster device 5 is activated, and the first on / off valve 12 is opened; the outlet of the water filtration unit 2 is connected to the second channel 32 through the second control valve 29. The second preset temperature specifically refers to a temperature value below which the filtration efficiency of the water filtration unit 2 will decrease significantly, generally between 15 and 25 degrees Celsius, and the specific value can be determined according to the specific type of water filtration unit 2.

[0076] In the above steps, the power of the first booster device 5 and / or the second booster device 6 can be controlled based on at least some of the parameters among the first temperature measured by the first temperature measuring device 7, the second temperature measured by the second temperature measuring device 27, and the heat exchange performance parameters of the heat exchange unit 3, thereby controlling the temperature of the water entering the inlet of the water filter unit 2 after the heated filtered water is mixed with the water input from the water source.

[0077] 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.

[0078] 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 system, characterized by, The water purification system includes: A heat exchange unit having a first channel and a second channel, wherein heat exchange can be performed between the fluids flowing through the first channel and the second channel; A water storage device capable of heating water, wherein the water storage device is connected to one end of the first channel; A water filtration unit, one end of the second channel can be connected to the inlet of the water filtration unit, and the outlet of the water filtration unit can be connected to the other end of the second channel. The water filtration unit and the second channel can form a first circulating water path. A second booster device is provided on the first circulating water path. The outlet of the water filtration unit can be connected to the water storage device through a first pipeline. The outlet unit, the other end of the first channel can be connected to the outlet unit; A first pressurization device is installed on the pipeline from the water storage device to the outlet unit through the first channel; A first temperature measuring device for measuring the temperature of the water in the water storage device; A second temperature measuring device for measuring the temperature of the inlet water of the water filtration unit; The control unit controls the power of the first booster device and / or the second booster device based on at least some of the parameters among the first temperature measured by the first temperature measuring device, the second temperature measured by the second temperature measuring device, the heat exchange performance parameters of the heat exchange unit, and the temperature value of the water that needs to be output at a temperature that meets the first preset condition. The water purification system has a first working state. In the first working state, the second booster device drives the water in the first circulating water circuit to circulate, and the first booster device delivers the hot water in the water storage device to the water outlet unit.

2. The water purification system of claim 1, wherein The water purification system also includes a third temperature measuring device for measuring the outlet water temperature at the outlet unit; The control unit adjusts the power of the first booster device and / or the second booster device based on the water temperature at the outlet unit measured by the third temperature measuring device.

3. The water purification system of claim 1, wherein The other end of the first channel can be connected to the water storage device through a second pipeline.

4. The water purification system of claim 3, wherein The water storage device, the first channel, and the second pipeline form a second circulating water circuit; The first pressurization device is installed on the pipeline of the water storage device through the first channel to the second pipeline at one end near the first channel; The water purification system also includes a second booster device installed on the first circulating water path.

5. The water purification system of claim 3, wherein The water storage device, the first channel, and the second pipeline form a second circulating water circuit; The first pressurization device is installed on the pipeline of the water storage device through the first channel to the second pipeline at one end near the first channel; The water purification system further includes: a second booster device installed on the first circulating water path; The water purification system has a second working state. In the second working state, the first booster device circulates the hot water in the second circulating water circuit, and the second booster device drives the water in the first circulating water circuit to circulate.

6. The water purification system of claim 1, wherein The water storage device can be connected to the water outlet unit via a fourth pipeline.

7. The water purification system of claim 6, wherein The first pressurization device is installed on the pipeline from the water storage device to the first channel; The outlet of the first booster device can be connected to the outlet unit through the fourth pipeline.

8. The water purification system of claim 7, wherein, The water purification system also includes a first on / off valve for controlling the opening and closing of the first channel.

9. The water purification system of claim 1, wherein, The water purification system further includes a second on / off valve for controlling the connection between the outlet of the water filtration unit and the water storage device; A first check valve is installed on the first pipeline, which connects the outlet of the water filtration unit to the water storage device.

10. The water purification system of claim 1, wherein, The water outlet unit includes a first water outlet and a second water outlet; the water storage device can be connected to the second water outlet through a fourth pipeline; the other end of the first channel can be connected to the first water outlet.

11. The water purification system of claim 1, wherein, The outlet of the water filtration unit can be connected to the water outlet unit through the fifth pipeline.

12. The water purification system of claim 1, wherein, One end of the second channel can be connected to the drainage end.

13. The water purification system of claim 12, wherein, The other end of the second channel is connected to the drain end through a third pipeline, and the third pipeline is equipped with a seventh check valve and a fourth on / off valve that guide the flow from the second channel to the drain end.

14. The water purification system of claim 13, wherein, The water filtration unit includes a filtration unit capable of discharging wastewater, and the filtration unit includes a reverse osmosis membrane filtration unit or a nanofiltration membrane filtration unit.

15. A water purification system control method characterized by, The water purification system control method adopts the water purification system as described in claim 1; The water purification system control method includes: Water that needs to be output at a temperature that meets the first preset condition has been detected. Water from the water source flows into the second channel, and water flowing out of the second channel is transported to the inlet of the water filtration unit. The hot water in the water storage device is controlled to be transported to the first channel of the heat exchange unit, and after flowing through the first channel, it is supplied to the outlet unit.

16. The water purification system control method according to claim 15, wherein The first pressurization device is turned on to transport the hot water in the water storage device to the first channel of the heat exchange unit, and after flowing through the first channel, it is supplied to the outlet unit.

17. The water purification system control method of claim 15, wherein, The second pressurization device is activated to control the water filtration unit to generate filtered water, and the filtered water is transported to the second channel of the heat exchange unit, so that the filtered water flows in the first circulating water path.

18. The water purification system control method of claim 15, wherein, The water purification system control method also includes: The power of the first booster device and / or the second booster device is controlled based on at least some of the parameters among the first temperature measured by the first temperature measuring device, the second temperature measured by the second temperature measuring device, the heat exchange performance parameters of the heat exchange unit, and the temperature value of the water that needs to be output to meet the first preset condition.

19. The water purification system control method of claim 18, wherein, The water purification system also includes a third temperature measuring device for measuring the outlet water temperature at the outlet unit; The water purification system control method also includes: The power of the first booster device and / or the second booster device is corrected based on the water temperature at the outlet unit measured by the third temperature measuring device.

20. The water purification system control method of claim 18, wherein, The first temperature measured by the first temperature measuring device is negatively correlated with the power of the first booster device, and the first temperature measured by the first temperature measuring device is positively correlated with the power of the second booster device; The second temperature measured by the second temperature measuring device is positively correlated with the power of the second booster device, and the second temperature measured by the second temperature measuring device is negatively correlated with the power of the first booster device.

21. The water purification system control method of claim 15, wherein, The other end of the first channel can be connected to the water storage device through the second pipeline, so that the water storage device, the first channel and the second pipeline form a second circulating water path; the water purification system also includes: a fourth temperature measuring device, which is used to measure the temperature of the environment in which the water purification system is located; The water purification system control method also includes: When the temperature of the environment where the water purification system is located, as measured by the fourth temperature measuring device, is lower than or equal to the first preset temperature, the hot water in the water storage device is controlled to circulate in the second circulating water path, and the filtered water generated by the water filtration unit circulates in the first circulating water path.

22. The water purification system control method of claim 15, wherein, The other end of the first channel can be connected to the water storage device through a second pipeline, so that the water storage device, the first channel and the second pipeline form a second circulating water circuit; The water purification system control method also includes: When the water filtration unit generates filtered water and supplies it to the water storage device or the outlet unit, and the temperature of the inlet water of the water filtration unit measured by the second temperature measuring device is lower than or equal to the second preset temperature, the hot water in the water storage device is controlled to circulate in the second circulating water path, and at least part of the filtered water generated by the water filtration unit flows back to the water filtration unit after passing through the second channel.

23. The water purification system control method of claim 22, wherein, When the water filtration unit generates filtered water and supplies it to the water storage device, the outlet of the water filtration unit is connected to the water storage device through the first pipeline.

24. The water purification system control method of claim 22, wherein, When the water filtration unit generates filtered water and supplies it to the outlet unit, the outlet of the water filtration unit is connected to the outlet unit through the fifth pipeline.

25. The water purification system control method of claim 15, wherein, The water storage device can be connected to the water outlet unit through the fourth pipeline; The water purification system control method also includes: When it is detected that the water temperature needs to meet the second preset condition, the hot water in the water storage device is delivered to the water outlet unit through the fourth pipeline; the temperature under the second preset condition is higher than the temperature under the first preset condition.

26. The water purification system control method of claim 15, wherein, The outlet of the water filtration unit can be connected to the outlet unit through the fifth pipeline; The water purification system control method also includes: When it is detected that the water temperature needs to meet the third preset condition, the water filtration unit is controlled to generate filtered water and the filtered water is delivered to the outlet unit through the fifth pipeline; the temperature under the third preset condition is lower than the temperature under the first preset condition.

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