Water path system of purified drinking equipment and purified drinking equipment

Abstract

The utility model relates to a water path system of purified drinking equipment, the water path system comprises a purified water path, an instant heating water path and a preheating water path, the purified water path is connected with raw water so as to purify the raw water into purified water and output the purified water; the instant heating water path is communicated with the purified water path and outputs normal-temperature pure water flowing out of the purified water path without heating, or the instant heating water path heats the normal-temperature pure water flowing out of the purified water path to a first set temperature or a third set temperature and then outputs the normal-temperature pure water; the water inlet end of the preheating water path is connected with the instant heating water path, and the water outlet end of the preheating water path is connected with the water inlet end of the instant heating water path, so that pure water at the first set temperature can flow back into the instant heating water path and is output after being heated to the second set temperature through the instant heating water path, or the flowing pure water at the first set temperature is output when the instant heating water path is not heated. Therefore, through the water path system, various types of water can be stably provided for a user, and meanwhile, through mutual cooperation between the preheating water path and the instant heating water path, it is guaranteed that the user can obtain high-flow hot water.

Description

Technical Field

[0001] This application relates to the field of water purification equipment technology, and in particular to a water circuit system and a drinking water purification device. Background Technology

[0002] Water purifiers, which can simultaneously purify and heat water, are increasingly widely used in people's daily lives. However, when a large flow of hot water is required, the water circuit used in these purifiers can only output a much smaller volume of hot water than room temperature or warm water, thus failing to meet the user's hot water demand. Utility Model Content

[0003] Therefore, it is necessary to provide a water system for water purification equipment to address the problem of low hot water flow output in current water purification equipment systems.

[0004] This application provides a water system for a drinking water purification device, including:

[0005] A water purification system is provided, which is suitable for receiving raw water and can purify the raw water into pure water before outputting it.

[0006] The instant hot water circuit has its inlet end connected to the purified water circuit. The instant hot water circuit does not heat the purified water to output room temperature water from the purified water circuit, or the instant hot water circuit is adapted to heat the room temperature purified water from the purified water circuit to a first set temperature or a third set temperature before outputting it.

[0007] The preheating water circuit has its inlet end connected to the instant hot water circuit to receive and store pure water that has reached a first set temperature and is output through the instant hot water circuit. The outlet end of the preheating water circuit is connected to the inlet end of the instant hot water circuit to allow the pure water at the first set temperature to flow back into the instant hot water circuit and be heated to a second set temperature before being output. Alternatively, the instant hot water circuit may not be heated so that the pure water at the first set temperature is output.

[0008] The third set temperature is less than the first set temperature, which is less than the second set temperature.

[0009] In one embodiment, the instant hot water circuit includes an instant heating module, a two-position three-way valve, and a water vapor separator arranged in sequence. The inlet of the instant heating module is connected to the purified water circuit to receive room temperature pure water output from the purified water circuit. The inlet of the two-position three-way valve is connected to the outlet of the instant heating module. One outlet of the two-position three-way valve is connected to the water vapor separator, and the other outlet is connected to the preheating hot water circuit.

[0010] In one embodiment, the preheating water circuit includes an insulated tank, the inlet of which is connected to one outlet of the two-position three-way valve, the outlet of which is connected to the instant hot water circuit, and a second pumping motor is provided between the insulated tank and the instant hot water module. The second pumping motor is adapted to draw the warm water stored in the insulated tank and deliver it to the instant hot water circuit.

[0011] In one embodiment, the water inlet of the instant heating module is also connected to the heat preservation tank so as to receive pure water flowing out of the heat preservation tank at a first set temperature, and is adapted to heat the water flowing out of the heat preservation tank at the first set temperature to the second set temperature.

[0012] In one embodiment, the purified water circuit further includes a pure water tank, which has only one water inlet. The water inlet of the pure water tank is adapted to connect to the first interface of a three-way connector, the second interface of the three-way connector is adapted to connect to the pure water output port of the purified water circuit, and the third interface of the three-way connector is adapted to connect to the water inlet of the instant heating module.

[0013] In one embodiment, the water system of the drinking water purification device further includes a raw water tank, which is equipped with a partition that separates the internal space of the raw water tank into a raw water area and a wastewater area. The raw water area is connected to the raw water outlet, and the wastewater area is connected to the wastewater outlet.

[0014] In one embodiment, a filter assembly is provided on the purified water path, and the filter assembly is adapted to be connected to the raw water inlet to filter the raw water flowing out of the raw water inlet into pure water.

[0015] In one embodiment, a one-way valve is provided on the connecting pipe between the filter assembly and the pure water tank to restrict the backflow of pure water filtered by the filter assembly, and a first pumping motor is provided on the connecting pipe between the pure water tank and the instant hot water circuit. The first pumping motor is adapted to pump the pure water in the pure water tank into the instant hot water circuit.

[0016] In one embodiment, a wastewater control device is provided between the filter assembly and the wastewater outlet of the raw water tank, and the wastewater filtered by the filter assembly is suitable for being returned to the wastewater area via the wastewater control device;

[0017] A booster pump and a raw water TDS meter are also provided between the filter assembly and the raw water inlet of the raw water tank. The raw water TDS meter is used to detect the water quality of the raw water, and the booster pump is located between the raw water TDS meter and the raw water inlet.

[0018] Another aspect of this application provides a water purification device in which the water system adopts the water system described above.

[0019] In the aforementioned water purification system, the purified water circuit purifies the raw water in the tank into pure water before outputting it. Then, the instant hot water circuit is connected to the purified water circuit, allowing the instant hot water circuit to output the pure water from the purified water circuit to the outlet for user use, or to heat the pure water output from the purified water circuit to a first or third set temperature before outputting it. When the user needs water at the third set temperature, the instant hot water circuit heats room temperature pure water to the third temperature before outputting it. Furthermore, the connection between the preheated water circuit and the instant hot water circuit allows the preheated water circuit to store and maintain the temperature of warm water heated to the first set temperature by the instant hot water circuit. When warm water is needed, the preheated water circuit can output the stored warm water to the outlet via the instant hot water circuit. When hot water is needed, the preheated water circuit transfers the stored warm water to the instant hot water circuit, which then heats the warm water to a second set temperature before outputting it for user use. Therefore, the above-mentioned water system can provide users with water at various temperatures, and through the cooperation between the preheating water circuit and the instant hot water circuit, it ensures that users can obtain a large flow of hot water, thus solving the problem of insufficient hot water output flow in the current water system of water purification equipment. Attached Figure Description

[0020] Figure 1 This is a water circuit diagram of the water circuit system of a water purification device in one embodiment of this application.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Purified water circuit; 11. Raw water tank; 111. Raw water inlet; 112. Wastewater inlet; 113. Baffle; 114. Raw water zone; 115. Wastewater zone; 12. Booster pump; 13. Raw water TDS; 14. Filter assembly; 15. Wastewater control device; 16. Check valve; 17. Pure water tank; 18. Pure water TDS; 19. First pumping motor; 20. UV lamp;

[0023] 2. Instantaneous hot water circuit; 21. Instantaneous heating module; 22. Two-position three-way valve; 23. Water vapor separator; 231. Exhaust port; 232. Water outlet;

[0024] 3. Preheating water circuit; 31. Insulation tank; 32. Second pumping motor. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] One embodiment of this application provides a water system for a water purification device. This system processes water to provide users with water at various temperatures as needed for convenient drinking. Simultaneously, the hot water flow rate provided by this system does not significantly decrease, meeting users' demands for large-flow hot water.

[0029] See Figure 1The water system includes a purified water circuit 1, an instant hot water circuit 2, and a preheated hot water circuit 3. The purified water circuit 1 is suitable for receiving raw water and purifying it into pure water before outputting it. The purified water circuit 1 is connected to the inlet of the instant hot water circuit 2, allowing it to receive the pure water output from the purified water circuit 1. The instant hot water circuit 2 then heats the received pure water to a first or third set temperature before outputting it (the heating temperature is determined according to user needs). Alternatively, the instant hot water circuit 2 can also output ambient temperature pure water to the user without heating the pure water output from the purified water circuit 1. The inlet of the preheating water circuit 3 is connected to the instant hot water circuit 2. The preheating water circuit 3 can only be used to receive and store pure water heated by the instant hot water circuit 2 at the first set temperature. The outlet of the preheating water circuit 3 is connected to the inlet of the instant hot water circuit 2. Thus, the preheating water circuit 3 can return the pure water stored in it at the first set temperature to the instant hot water circuit. The instant hot water circuit 2 can either not heat the pure water flowing through it at the first set temperature and output pure water at the first set temperature to the user, or it can heat the pure water to the second set temperature (hot water) through the instant hot water circuit 2 and output it to the user. At this time, if the user has a hot water demand, the preheating water circuit 3 can cooperate with the instant hot water circuit 2 to output a large flow of hot water.

[0030] It should be noted that this water system can mainly output water at room temperature, water at a first set temperature, water at a second set temperature, and water at a third set temperature to the user. The room temperature water is pure water produced by purifying the raw water in the purification circuit. The water at the first set temperature is room temperature water that has been heated by the instant hot water circuit 2 and then stored in the preheated hot water circuit 3. The water at the second set temperature is water that has been returned from the preheated hot water circuit 3 to the instant hot water circuit 2 and then reheated by it. The water at the third set temperature is room temperature water that has been heated by the instant hot water circuit 2 to a temperature lower than the first set temperature. Therefore, the third set temperature is lower than the first set temperature, which is lower than the second set temperature. For example, room temperature water is 25°C, the third set temperature water is 45°C, the first set temperature water is 60°C, and the second set temperature water is 99°C.

[0031] The raw water tank 11 is equipped with a partition 113, which divides the internal space of the raw water tank 11 into a raw water area 114 and a wastewater area 115. The raw water area 114 is connected to the raw water outlet 111, and the wastewater area 115 is connected to the wastewater outlet 112. The pure water tank 17 has only one water inlet. The water inlet of the pure water tank 17 is suitable for connecting to the first interface of the three-way connector. The second interface of the three-way connector is suitable for connecting to the pure water output port of the purified water circuit 1. The third interface of the three-way connector is suitable for connecting to the water inlet of the instant heating module 2.

[0032] The inlet of the purified water circuit 1 is connected to the raw water outlet 111 to receive the raw water flowing out of the raw water tank 11. The purified water circuit 1 is equipped with a filter assembly 14, and a booster pump 12 is installed between the filter assembly 14 and the raw water outlet 111. During water purification, the booster pump 12 pressurizes the raw water flowing out of the raw water outlet 111, allowing it to smoothly enter the filter assembly 14. The filter assembly 14 can optionally use an integrated composite filter element, which includes at least a pre-filter, an RO membrane, and a post-filter arranged sequentially. The pre-filter, RO membrane, and post-filter are housed in the same filter bottle. After being pressurized by the booster pump 12, the raw water flows sequentially through the pre-filter, RO membrane, and post-filter for filtration. The filtered pure water flows into the pure water tank 17 for storage, to be used when needed.

[0033] Furthermore, a raw water TDS13 can be added between the filter assembly 14 and the booster pump 12 as needed, through which the raw water TDS13 can be used to detect the quality of the raw water flowing out of the raw water outlet 111.

[0034] Furthermore, after filtering the raw water, the filter assembly 14 will also generate some wastewater. Therefore, the filter assembly 14 is also connected to the wastewater outlet 112 of the raw water tank 11. This wastewater flows through the wastewater control device 15 located between the wastewater outlet 112 and the filter assembly 14 and finally flows back to the wastewater area 115 of the raw water tank 11.

[0035] Furthermore, the water purification circuit 1 is also equipped with a pure water TDS18 and a UV lamp 20 in sequence. The pure water TDS18 is located upstream of the first water pump 19, and the UV lamp 20 is located downstream of the first water pump 19. The pure water TDS18 can detect the quality of the pure water tank 17 and the pure water output after filtration by the filter assembly 14, while the UV lamp 20 can sterilize and disinfect the output pure water to further ensure the safety of the water quality.

[0036] The instant hot water circuit 2 includes an instant hot water module 21, a two-position three-way valve 22, and a water vapor separator 23 arranged in sequence. The instant hot water module 21 can heat the water flowing through it to a set temperature. The three ports of the two-position three-way valve 22 are simultaneously connected to the inlet of the water vapor separator 23, the inlet of the preheating hot water circuit 3, and the outlet of the instant hot water module 21. The water vapor separator 23 is provided with an exhaust port 231 and an outlet 232.

[0037] When a user needs room temperature water, the pure water in the pure water tank 17 is drawn into the instant heating module 21 by the first pumping motor 19. At this time, the instant heating module 21 does not heat the room temperature water flowing out of the pure water tank 17. After passing through the instant heating module 21, the room temperature water flows into the two-position three-way valve 22. At this time, the valve port of the two-position three-way valve 22 connected to the preheating water circuit 3 is closed, and the valve port connected to the water vapor separator 23 is open. Therefore, the room temperature water can enter the water vapor separator 23 and be output to the user after passing through the water vapor separator 23.

[0038] Furthermore, when the user needs water at the third set temperature, the room-temperature pure water in the pure water tank 17 is drawn into the instant heating module 21 by the first pump motor 19. The instant heating module 21 then heats the room-temperature water flowing from the pure water tank 17 to the third set temperature. The water at the third set temperature then flows into the two-position three-way valve 22 after passing through the instant heating module 21. At this time, the valve port of the two-position three-way valve 22 connected to the preheated water circuit 3 is closed, while the valve port connected to the water vapor separator 23 is open. Therefore, the water at the third set temperature can enter the water vapor separator 23 and be output to the user after passing through it. For example, if the room temperature water is 25°C and the third set temperature water is 45°C, the instant heating module 21 can directly heat the 25°C room-temperature water to 45°C for output to the user.

[0039] In addition, the instant hot water circuit 2 can also provide pure water at a first set temperature to the preheating hot water circuit 3. First, the pure water in the pure water tank 17 is drawn into the instant heating module 21 by the first pumping motor 19. At this time, the instant heating module 21 heats the room temperature water flowing out of the pure water tank 17, so that the room temperature water reaches the first set temperature. The warm water that has reached the first set temperature flows into the two-position three-way valve 22. At this time, the valve port of the two-position three-way valve 22 connected to the preheating hot water circuit 3 is opened, and the valve port connected to the water vapor separator 23 is closed, so that all the warm water that has reached the first set temperature flows into the preheating hot water circuit 3 for heat preservation and storage. For example, if the room temperature water is 25°C and the water at the first set temperature is 60°C, the 25°C room temperature water is heated to 60°C by the instant heating module 21 and then fed into the heat preservation tank 31 in the preheating hot water circuit 3 for heat preservation and storage.

[0040] The preheating water circuit 3 includes an insulated tank 31 and a second pumping motor 32. The insulated tank water inlet of the insulated tank 31 is connected to one of the valve ports of the two-position three-way valve 22 to receive and store warm water at the first set temperature output from the preheating water circuit 3. The insulated tank water outlet of the insulated tank 31 is connected to the instant hot water circuit 2 via the second pumping motor 32, so that the warm water in the insulated tank 31 can be drawn into the preheating water circuit 3 by the second pumping motor 32.

[0041] Therefore, when a user needs warm water (at the first set temperature), the second pumping motor 32 draws water from the insulation tank 31 into the instant hot water circuit 2. At this time, the instant heating module 21 in the instant hot water circuit 2 does not work, so it does not heat the warm water drawn from the insulation tank 31. The warm water then flows sequentially through the instant heating module 21, the two-position three-way valve 22 (the valve connected to the insulation tank 31 is closed, and the valve connected to the water vapor separator 23 is open), and the water vapor separator 23 before being output to the user. For example, if the water stored in the insulation tank 31 at the first set temperature is 60°C, after the 60°C water stored in the insulation tank 31 is input into the preheating hot water circuit 3, the preheating hot water circuit 3 does not heat the 60°C water and directly outputs the 60°C water to the user.

[0042] Furthermore, if the temperature of the water stored in the heat preservation tank 31 drops, for example, if the initial temperature of the water stored in the heat preservation tank 31 is 60°C and after a period of time the temperature drops to 55°C, then the 55°C hot water stored in it needs to be returned to the instant hot water circuit 2 for reheating to 60°C before being reintroduced into the heat preservation tank 31 for storage, so as to ensure that the water temperature stored in the heat preservation tank 31 is always within an acceptable temperature fluctuation range.

[0043] During the secondary heating process, the warm water in the insulation tank 31 is first drawn out by the second pumping motor 32 and input into the instant hot water circuit 2. The instant heating module 21 in the instant hot water circuit 2 heats the warm water drawn out from the insulation tank 31 until it reaches the temperature requirement of the warm water stored in the insulation tank 31 again, and then the heating is stopped. Then the warm water after secondary heating is input back to the two-position three-way valve 22 (at this time, the valve port of the two-position three-way valve 22 connected to the insulation tank 31 is open, and the valve port connected to the water vapor separator 23 is closed). The reheated warm water is input into the insulation tank 31 for storage and heat preservation after passing through the two-position three-way valve 22.

[0044] When a user needs hot water (second set temperature), the second pump motor 32 first draws warm water from the insulation tank 31 into the instant hot water circuit 2. The instant heating module 21 in the instant hot water circuit 2 heats the water drawn from the insulation tank 31 until the water temperature reaches the second set temperature, then stops heating. The heated hot water is then fed to the two-position three-way valve 22 (at this time, the valve port connected to the insulation tank 31 is closed, and the valve port connected to the water vapor separator 23 is open). Finally, the hot water flows through the water vapor separator 23 and is output to the user. For example, if the water stored in the insulation tank 31 at the first set temperature is 60°C, and the user requires 99°C water, then the 60°C water stored in the insulation tank 31 needs to be fed into the preheating hot water circuit 3. The preheating hot water circuit 3 heats the 60°C water until the temperature reaches 99°C, and then outputs the 99°C water to the user.

[0045] This embodiment also provides a water purification device, in which the water system adopts the design of the above-mentioned water system, which can provide users with various types of water. At the same time, through the cooperation between the preheating water circuit 3 and the instant hot water circuit 2, it ensures that users can obtain a large flow of hot water, thus solving the problem of insufficient hot water output flow of current water purification devices.

[0046] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0048] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A waterway system for a water purification apparatus, characterized by, include: A water purification system is provided, which is suitable for receiving raw water and can purify the raw water into pure water before outputting it. The instant hot water circuit has its inlet end connected to the purified water circuit. The instant hot water circuit does not heat the purified water to output room temperature water from the purified water circuit, or the instant hot water circuit is adapted to heat the room temperature purified water from the purified water circuit to a first set temperature or a third set temperature before outputting it. The preheating water circuit has its inlet end connected to the instant hot water circuit to receive and store pure water that has reached a first set temperature and is output through the instant hot water circuit. The outlet end of the preheating water circuit is connected to the inlet end of the instant hot water circuit to allow the pure water at the first set temperature to flow back into the instant hot water circuit and be heated to a second set temperature before being output. Alternatively, the instant hot water circuit may not be heated so that the pure water at the first set temperature is output. The third set temperature is less than the first set temperature, which is less than the second set temperature.

2. The POU water treatment device waterway system of claim 1, wherein, The instant hot water circuit includes an instant heating module, a two-position three-way valve, and a water vapor separator arranged in sequence. The inlet of the instant heating module is connected to the purified water circuit to receive room temperature pure water output from the purified water circuit. The inlet of the two-position three-way valve is connected to the outlet of the instant heating module. One outlet of the two-position three-way valve is connected to the water vapor separator, and the other outlet is connected to the preheating hot water circuit.

3. The POU water treatment device waterway system of claim 2, wherein, The preheating water circuit includes an insulated tank. The inlet of the insulated tank is connected to one outlet of the two-position three-way valve. The outlet of the insulated tank is connected to the instant hot water circuit. A second pumping motor is also provided between the insulated tank and the instant hot water module. The second pumping motor is adapted to draw the warm water stored in the insulated tank and transport it to the instant hot water circuit.

4. The water circuit system of the drinking water purification equipment according to claim 3, characterized in that, The water inlet of the instant heating module is also connected to the heat preservation tank so as to receive pure water flowing out of the heat preservation tank at a first set temperature, and is suitable for heating the water flowing out of the heat preservation tank at the first set temperature to the second set temperature.

5. The water circuit system of the drinking water purification equipment according to claim 3, characterized in that, The purified water circuit also includes a pure water tank, which has only one water inlet. The water inlet of the pure water tank is adapted to connect to the first interface of the three-way connector, the second interface of the three-way connector is adapted to connect to the pure water output port of the purified water circuit, and the third interface of the three-way connector is adapted to connect to the water inlet of the instant heating module.

6. The water circuit system of the drinking water purification equipment according to any one of claims 1 to 5, characterized in that, The water system of the drinking water purification equipment also includes a raw water tank. The raw water tank is equipped with a partition, which separates the internal space of the raw water tank into a raw water area and a wastewater area. The raw water area is connected to the raw water outlet, and the wastewater area is connected to the wastewater outlet.

7. The water circuit system of the drinking water purification equipment according to claim 6, characterized in that, The water purification circuit is equipped with a filter component, which is adapted to be connected to the raw water inlet to filter the raw water flowing out of the raw water inlet into pure water.

8. The water circuit system of the drinking water purification equipment according to claim 7, characterized in that, A one-way valve is provided on the connecting pipe between the filter assembly and the pure water tank to restrict the backflow of pure water filtered by the filter assembly. A first pumping motor is provided on the connecting pipe between the pure water tank and the instant hot water circuit. The first pumping motor is adapted to pump the pure water in the pure water tank into the instant hot water circuit.

9. The water circuit system of the drinking water purification equipment according to claim 7, characterized in that, A wastewater control device is provided between the filter assembly and the wastewater outlet of the raw water tank. The wastewater filtered by the filter assembly is suitable to flow through the wastewater control device and return to the wastewater area. A booster pump and a raw water TDS meter are also provided between the filter assembly and the raw water inlet of the raw water tank. The raw water TDS meter is used to detect the water quality of the raw water, and the booster pump is located between the raw water TDS meter and the raw water inlet.

10. A water purification device, characterized in that, The water system of the drinking water purification equipment adopted as described in any one of claims 1 to 9.

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