Water purifier

Abstract

The utility model relates to the technical field of water dispensers, and discloses a water purifier, which comprises a filter element assembly, a water inlet and a water outlet, the normal-temperature water tank is provided with a first inlet and a first outlet; the preheating water tank is provided with a second inlet and a second outlet; the first reversing valve is provided with a third inlet, a fourth inlet and a third outlet; the second reversing valve is provided with a fifth inlet, a sixth inlet and a fourth outlet; the heating assembly is provided with a seventh inlet and a fifth outlet; the small-power pump is provided with an eighth inlet and a sixth outlet; the high-power pump is provided with a ninth inlet and a seventh outlet; the water outlet head is provided with a water supply port; the first purified water outlet is selectively communicated with the water supply port, the first inlet and the second inlet, the first outlet is communicated with the third inlet and the fifth inlet, the second outlet is communicated with the fourth inlet and the sixth inlet, the third outlet is communicated with the eighth inlet, the fourth outlet is communicated with the ninth inlet, and the sixth outlet and the seventh outlet are communicated with the seventh inlet; and the fifth outlet is selectively communicated with the water supply port.

Description

Technical Field

[0001] The utility model relates to the technical field of water dispensers, in particular to a water purifier. Background Art

[0002] In the existing under-sink water purifier technology with heating, in order to meet the user's demand for a large flow of warm boiled water and ensure a continuous supply of hot water, a combination design of a pure water tank and a preheating tank is usually adopted.

[0003] Specifically, when a user needs a large amount of boiled water, the water purifier will use a high-power pump to draw hot water that has been preheated to above 80°C from the preheating tank into the heating body for heating to reach the standard temperature of boiled water before outputting it; when providing warm water, the water purifier uses a high-power pump to draw hot water, and a low-power pump to draw normal-temperature water from the normal-temperature tank, mix them in a certain proportion, and then heat them to the required temperature through the heating body before supplying them to the user. This design aims to improve the supply efficiency and temperature stability of hot water through the preheating function of the preheating tank.

[0004] However, since the power of the heating body of this water purifier is fixed, the high-power pump of the existing water purifier can only pump a large flow of hot water, while the low-power pump can only pump a small flow of room-temperature water. This fixed flow characteristic limits the flexibility of the mixing ratio of hot water and room-temperature water, resulting in the water flow rate at different temperatures may not meet the actual needs of users, or only a limited number of fixed temperature gears can be provided, and detailed temperature adjustment cannot be performed. Therefore, this traditional water purifier may bring a poor experience to users in actual use. Utility Model Content

[0005] Based on the above, the purpose of the utility model is to provide a water purifier, whose low-power pump and high-power pump can flexibly supply normal temperature water and preheated water, and has more flexible and efficient warm water supply performance.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The present application provides a water purifier, which includes:

[0008] A filter element assembly having a first filter inlet and a first clean water outlet;

[0009] A normal temperature water tank, used for storing normal temperature water, the normal temperature water tank having a first inlet and a first outlet;

[0010] A preheated water tank, used for storing preheated water, the preheated water tank having a second inlet and a second outlet;

[0011] A first reversing valve has a third inlet, a fourth inlet, and a third outlet selectively connected to the third inlet or the fourth inlet;

[0012] The second reversing valve has a fifth inlet, a sixth inlet, and a fourth outlet selectively connected to the fifth inlet or the sixth inlet;

[0013] a heating assembly having a seventh inlet and a fifth outlet;

[0014] A low-power pump having an eighth inlet and a sixth outlet;

[0015] A high-power pump with a ninth inlet and a seventh outlet;

[0016] A water outlet having a water supply port;

[0017] Among them, the first clean water outlet can be selectively connected to the water supply port, the first inlet and the second inlet, the first outlet is respectively connected to the third inlet and the fifth inlet, the second outlet is respectively connected to the fourth inlet and the sixth inlet, the third outlet is connected to the eighth inlet, the fourth outlet is connected to the ninth inlet, the sixth outlet and the seventh outlet are respectively connected to the seventh inlet, and the fifth outlet is selectively connected to the water supply port.

[0018] In some embodiments, the water purifier further comprises:

[0019] A first one-way valve is connected in series between the sixth outlet and the seventh inlet to allow one-way water supply from the sixth outlet to the seventh inlet; and / or,

[0020] The second one-way valve is connected in series between the seventh outlet and the seventh inlet to enable one-way water supply from the seventh outlet to the seventh inlet.

[0021] In some embodiments, the water purifier further comprises:

[0022] The third reversing valve has a tenth inlet and an eighth outlet and a ninth outlet which are selectively connected to the tenth inlet. The tenth inlet is connected to the first purified water outlet, the eighth outlet is connected to the first inlet, and the ninth outlet is connected to the second inlet.

[0023] In some embodiments, the water purifier further comprises:

[0024] a first solenoid valve, connected in series between the fifth outlet and the water supply port, for controlling the water supply from the fifth outlet to the water supply port;

[0025] The second solenoid valve is connected in series between the first purified water outlet and the water supply port, and is used to control the water supply from the first purified water outlet to the water supply port.

[0026] In some embodiments, the water purifier further comprises:

[0027] The third one-way valve is connected in series between the first clean water outlet and the second solenoid valve, and is also connected in series between the first clean water outlet and the tenth inlet, so that the first clean water outlet is connected to the second solenoid valve and the tenth inlet for one-way water supply.

[0028] In some embodiments, the filter element assembly also has a first waste outlet for discharging waste; the normal temperature water tank also has a second waste outlet for discharging waste, and the second waste outlet is located at the top of the normal temperature water tank; the preheated water tank also has a third waste outlet for discharging waste, and the third waste outlet is located at the top of the preheated water tank.

[0029] In some embodiments, the preheating water tank package also has a heating element for heating the preheating water; the preheating water tank package also has a first liquid level device for detecting the liquid level of the stored preheating water; the normal temperature water tank also has a second liquid level device for detecting the liquid level of the stored normal temperature water.

[0030] In some embodiments, the normal temperature water tank further comprises a sterilizer for sterilizing the stored normal temperature water, and the sterilizer comprises a UV lamp;

[0031] The water purifier also includes:

[0032] A TDS water quality detector, disposed downstream of the first purified water outlet, for performing water quality detection on the water supplied from the first purified water outlet;

[0033] The purified water flow meter is arranged downstream of the first purified water outlet and is used for counting the flow of the water supplied to the first purified water outlet.

[0034] In some embodiments, the filter element assembly includes:

[0035] A first filter element having a first reclaimed water outlet, a re-filtration inlet, the first filtration inlet and the first clean water outlet;

[0036] A second filter element having a first waste outlet, a second filter inlet, and a second clean water outlet;

[0037] A booster pump, connected in series between the first reclaimed water outlet and the second filter inlet;

[0038] Among them, the first filter inlet is used to connect raw water, the first waste outlet is used to discharge waste water, the second clean water outlet is connected with the re-filtration inlet and the inlet of the booster pump, and a water inlet solenoid valve is also connected in series between the booster pump and the first reclaimed water outlet, and a reflux solenoid valve and a fourth one-way valve are also connected in series on the pipeline connecting the booster pump and the second clean water outlet.

[0039] In some embodiments, the first filter element is a PCC composite filter element, and the second filter element is an RO filter element.

[0040] The beneficial effects of the utility model are:

[0041] The water purifier of the utility model includes a filter element assembly, a normal temperature water tank for storing normal temperature water, a preheated water tank for storing preheated water, a first reversing valve, a second reversing valve, a heating assembly, a low-power pump, a high-power pump, and a water outlet. The filter element assembly has a first filtration inlet and a first clean water outlet; the normal temperature water tank has a first inlet and a first outlet; the preheated water tank has a second inlet and a second outlet; the first reversing valve has a third inlet, a fourth inlet, and a third outlet selectively connected to the third inlet and the fourth inlet; the second reversing valve has a fifth inlet, a sixth inlet, and a fourth outlet selectively connected to the fifth inlet and the sixth inlet; the heating assembly has a seventh inlet and a fifth outlet; the low-power pump has an eighth inlet and a sixth outlet; the high-power pump has a ninth inlet and a seventh outlet; the water outlet has a water supply port; the first clean water outlet can be selectively connected to the water supply port, the first inlet, and the water outlet. The first outlet is connected to the third inlet and the fifth inlet respectively, the second outlet is connected to the fourth inlet and the sixth inlet respectively, the third outlet is connected to the eighth inlet, the fourth outlet is connected to the ninth inlet, the sixth outlet and the seventh outlet are connected to the seventh inlet respectively, and the fifth outlet is selectively connected to the water supply port. Under the switching regulation of the first reversing valve and the second reversing valve, the small-power pump and the high-power pump can flexibly extract the normal temperature water from the normal temperature water tank and the heated water from the preheating water tank, so as to flexibly supply the normal temperature water and the preheated water, and realize flexible matching, so it has more flexible and efficient warm boiled water supply performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0043] Figure 1 A schematic diagram of the water circuit principle of a water purifier provided in some embodiments of the present application;

[0044] Figure 2 A schematic diagram of the water circuit principle of a water purifier provided in some embodiments of the present application, with the filter element assembly (1) and related water circuits hidden.

[0045] In the figure:

[0046] 1. Filter element assembly; 11. First filter element; 111. First reclaimed water outlet; 112. Re-filtration inlet; 113. First filtration inlet; 114. First clean water outlet; 12. Second filter element; 121. First waste outlet; 122. Second filtration inlet; 123. Second clean water outlet; 13. Booster pump; 14. Water inlet solenoid valve; 15. Backflow solenoid valve; 16. Fourth one-way valve;

[0047] 2. Normal temperature water tank; 21. First inlet; 22. First outlet; 23. Second waste outlet; 24. Second liquid level indicator; 25. Sterilizer;

[0048] 3. Preheating water tank; 31. Second inlet; 32. Second outlet; 33. Third waste outlet; 34. Heating element; 35. First liquid level device;

[0049] 4. First reversing valve; 41. Third inlet; 42. Fourth inlet; 43. Third outlet;

[0050] 5. Second reversing valve; 51. Fifth inlet; 52. Sixth inlet; 53. Fourth outlet;

[0051] 6. Heating assembly; 61. Seventh inlet; 62. Fifth outlet;

[0052] 7. Low power pump; 71. Eighth inlet; 72. Sixth outlet;

[0053] 8. High-power pump; 81. Ninth inlet; 82. Seventh outlet;

[0054] 9. Water outlet; 91. Water supply port;

[0055] 10. First one-way valve;

[0056] 20. Second one-way valve;

[0057] 30, third reversing valve; 301, tenth inlet; 302, eighth outlet; 303, ninth outlet;

[0058] 40. A first solenoid valve;

[0059] 50. Second solenoid valve;

[0060] 60. The third one-way valve;

[0061] 70. TDS water quality detector;

[0062] 80. Water purification flow meter. DETAILED DESCRIPTION

[0063] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0064] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0065] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0066] In the description of this embodiment, the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0067] refer to Figure 1-2The embodiment of the present application provides a water purifier including a filter element assembly 1, a normal temperature water tank 2 for storing normal temperature water, a preheated water tank 3 for storing preheated water, a first reversing valve 4, a second reversing valve 5, a heating assembly 6, a low-power pump 7, a high-power pump 8, and a water outlet 9. The filter element assembly 1 has a first filter inlet 113 and a first clean water outlet 114; the normal temperature water tank 2 has a first inlet 21 and a first outlet 22; the preheating water tank 3 has a second inlet 31 and a second outlet 32; the first reversing valve 4 has a third inlet 41, a fourth inlet 42, and a third outlet 43 that is selectively connected to the third inlet 41 and the fourth inlet 42; the second reversing valve 5 has a fifth inlet 51, a sixth inlet 52, and a fourth outlet 53 that is selectively connected to the fifth inlet 51 and the sixth inlet 52; the heating assembly 6 has a seventh inlet 61 and a fifth outlet 62; the low-power pump 7 has an eighth inlet 71 and a sixth outlet 72; the high-power pump 8 has a ninth inlet 81 and a seventh outlet 82; the water outlet 9 has a water supply port 91; the first clean water outlet 114 can be selected The first outlet 22 is connected to the third inlet 41 and the fifth inlet 51 respectively, the second outlet 32 ​​is connected to the fourth inlet 42 and the sixth inlet 52 respectively, the third outlet 43 is connected to the eighth inlet 71, the fourth outlet 53 is connected to the ninth inlet 81, the sixth outlet 72 and the seventh outlet 82 are connected to the seventh inlet 61 respectively, and the fifth outlet 62 is selectively connected to the water supply port 91, which can enable the low-power pump 7 and the high-power pump 8 to flexibly extract the normal temperature water from the normal temperature water tank 2 and the heated water from the preheating water tank 3 under the regulation of the first reversing valve 4 and the second reversing valve 5, so as to flexibly supply normal temperature water and preheated water, realize flexible matching, and thus has more flexible and efficient warm boiled water supply performance.

[0068] refer to Figure 1-2 In some embodiments, the water purifier further includes a first one-way valve 10. The first one-way valve 10 is connected in series between the sixth outlet 72 and the seventh inlet 61 to allow one-way water supply from the sixth outlet 72 to the seventh inlet 61 without reverse flow.

[0069] refer to Figure 1-2 In some embodiments, the water purifier further includes a second one-way valve 20. The second one-way valve 20 is connected in series between the seventh outlet 82 and the seventh inlet 61 to allow one-way water supply from the seventh outlet 82 to the seventh inlet 61 without reverse flow.

[0070] In some embodiments, reference Figure 1-2The water purifier further includes a third reversing valve 30. The third reversing valve 30 has a tenth inlet 301 and an eighth outlet 302 and a ninth outlet 303 selectively connected to the tenth inlet 301. The tenth inlet 301 is connected to the first purified water outlet 114, the eighth outlet 302 is connected to the first inlet 21, and the ninth outlet 303 is connected to the second inlet 31. The third reversing valve 30 is used to selectively supplement water supply to the normal temperature water tank 2 and the preheated water tank 3.

[0071] In some embodiments, reference Figure 1-2 The water purifier further includes a first solenoid valve 40 and a second solenoid valve 50. The first solenoid valve 40 is connected in series between the fifth outlet 62 and the water supply port 91, and is used to control the water supply from the fifth outlet 62 to the water supply port 91; the second solenoid valve 50 is connected in series between the first purified water outlet 114 and the water supply port 91, and is used to control the water supply from the first purified water outlet 114 to the water supply port 91. The on-off control of the water supply is realized by the first solenoid valve 40 and the second solenoid valve 50.

[0072] In some embodiments, reference Figure 1-2 The water purifier further includes a third one-way valve 60. The third one-way valve 60 is connected in series between the first clean water outlet 114 and the second solenoid valve 50, and the third one-way valve 60 is connected in series between the first clean water outlet 114 and the tenth inlet 301, so that the first clean water outlet 114 is connected to the second solenoid valve 50 and the tenth inlet 301 for one-way water supply.

[0073] In some embodiments, reference Figure 1-2 The filter element assembly 1 also has a first waste outlet 121 for discharging waste; the normal temperature water tank 2 also has a second waste outlet 23 for discharging waste, and the second waste outlet 23 is located at the top of the normal temperature water tank 2; the preheated water tank 3 also has a third waste outlet 33 for discharging waste, and the third waste outlet 33 is located at the top of the preheated water tank 3. The first waste outlet 121, the second waste outlet 23 and the third waste outlet 33 can be connected to the wastewater collection tank to collect wastewater.

[0074] In some embodiments, reference Figure 1-2 The preheating water tank 3 also has a heating element 34 for heating the preheating water, and the heating element 34 can be a heating rod or a heating wire; the preheating water tank 3 also has a first liquid level device 35 for detecting the liquid level of the stored preheating water, and the first liquid level device 35 can use an existing liquid level device; the normal temperature water tank 2 also has a second liquid level device 24 for detecting the liquid level of the stored normal temperature water, and the second liquid level device 24 can use an existing liquid level device, thereby realizing the detection of the liquid level. When the stock is insufficient, it can be supplemented by the controller, and the circuit control can use the existing control, which will not be described in detail.

[0075] In some embodiments, reference Figure 1-2 The normal temperature water tank 2 also has a sterilizer 25 for sterilizing the stored normal temperature water, and the sterilizer 25 includes a UV lamp to achieve sterilization;

[0076] In some embodiments, reference Figure 1-2 The water purifier also includes a TDS water quality detector 70 and a clean water flow meter 80. The TDS water quality detector 70 is arranged downstream of the first clean water outlet 114, and is used to detect the water quality of the water supply of the first clean water outlet 114; the clean water flow meter 80 is arranged downstream of the first clean water outlet 114, and is used to count the flow of the water supply of the first clean water outlet 114. The TDS water quality detector 70 and the clean water flow meter 80 can use the existing ones, thereby realizing water quality detection and statistics of the total flow rate, so as to analyze the total filtration amount and service life of the filter element assembly 1. "TDS" is the abbreviation of "Total Dissolved Solids", which means "total dissolved solids" in Chinese.

[0077] In some embodiments, reference Figure 1-2 The filter element assembly 1 includes a first filter element 11, a second filter element 12, a booster pump 13, a water inlet solenoid valve 14, a reflux solenoid valve 15 and a fourth one-way valve 16. The first filter element 11 has a first reclaimed water outlet 111, a re-filtration inlet 112, a first filter inlet 113 and a first clean water outlet 114; the second filter element 12 has a first waste outlet 121, a second filter inlet 122 and a second clean water outlet 123; the booster pump 13 is connected in series between the first reclaimed water outlet 111 and the second filter inlet 122; the first filter inlet 113 is used to receive raw water, the first waste outlet 121 is used to discharge waste water, the second clean water outlet 123 is connected to the re-filtration inlet 112 and the inlet of the booster pump 13, the water inlet solenoid valve 14 is also connected in series between the booster pump 13 and the first reclaimed water outlet 111, and the reflux solenoid valve 15 and the fourth one-way valve 16 are also connected in series on the pipeline connecting the booster pump 13 and the second clean water outlet 123. The first filter element 11, the second filter element 12, the booster pump 13, the water inlet solenoid valve 14, the return solenoid valve 15 and the fourth check valve 16 realize two-stage filtration treatment, which can minimize the discharge of wastewater. Figure 1-2In some embodiments, the first filter element 11 is a PCC composite filter element, and the second filter element 12 is an RO filter element. PCC stands for "granular activated carbon and ceramics", which is a composite filter element, usually composed of two parts: granular activated carbon (GAC) and a ceramic filter element. Granular activated carbon has a highly porous structure and can effectively adsorb organic pollutants, chlorine, odors and pigments in water, improving the taste and smell of water. The ceramic filter element is made of ceramic material and has a microporous structure, which can intercept larger particles of impurities such as suspended solids, bacteria and algae in water. RO stands for "Reverse Osmosis", which is reverse osmosis technology. The RO filter element uses the selective permeability of a semipermeable membrane to intercept harmful substances such as ions, bacteria, viruses, pesticides, etc. in water, thereby achieving deep purification of water. The pore size of the reverse osmosis membrane is very small, about 0.1 nanometers, which enables it to remove most of the dissolved solids (TDS) in water, including heavy metals, salts, etc. RO filter elements are usually used as the core technical components of water purifiers. They can provide water quality close to pure water and are widely used in the production of drinking pure water and household water purification equipment.

[0078] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A water purifier, characterized in that: include: A filter element assembly having a first filter inlet and a first clean water outlet; A normal temperature water tank, used for storing normal temperature water, the normal temperature water tank having a first inlet and a first outlet; A preheated water tank, used for storing preheated water, the preheated water tank having a second inlet and a second outlet; A first reversing valve has a third inlet, a fourth inlet, and a third outlet selectively connected to the third inlet or the fourth inlet; a second reversing valve having a fifth inlet, a sixth inlet, and a fourth outlet selectively connected to the fifth inlet or the sixth inlet; a heating assembly having a seventh inlet and a fifth outlet; A low-power pump having an eighth inlet and a sixth outlet; A high-power pump with a ninth inlet and a seventh outlet; A water outlet having a water supply port; Among them, the first clean water outlet can be selectively connected to the water supply port, the first inlet and the second inlet, the first outlet is respectively connected to the third inlet and the fifth inlet, the second outlet is respectively connected to the fourth inlet and the sixth inlet, the third outlet is connected to the eighth inlet, the fourth outlet is connected to the ninth inlet, the sixth outlet and the seventh outlet are respectively connected to the seventh inlet, and the fifth outlet is selectively connected to the water supply port.

2. The water purifier according to claim 1, characterized in that: Also includes: A first one-way valve is connected in series between the sixth outlet and the seventh inlet to allow one-way water supply from the sixth outlet to the seventh inlet; and / or, The second one-way valve is connected in series between the seventh outlet and the seventh inlet to enable one-way water supply from the seventh outlet to the seventh inlet.

3. The water purifier according to claim 1, characterized in that: Also includes: The third reversing valve has a tenth inlet and an eighth outlet and a ninth outlet which are selectively connected to the tenth inlet. The tenth inlet is connected to the first purified water outlet, the eighth outlet is connected to the first inlet, and the ninth outlet is connected to the second inlet.

4. The water purifier according to claim 3, characterized in that: Also includes: a first solenoid valve, connected in series between the fifth outlet and the water supply port, for controlling the water supply from the fifth outlet to the water supply port; The second solenoid valve is connected in series between the first purified water outlet and the water supply port, and is used to control the water supply from the first purified water outlet to the water supply port.

5. The water purifier according to claim 4, characterized in that: Also includes: The third one-way valve is connected in series between the first clean water outlet and the second solenoid valve, and is also connected in series between the first clean water outlet and the tenth inlet, so that the first clean water outlet is connected to the second solenoid valve and the tenth inlet for one-way water supply.

6. The water purifier according to any one of claims 1 to 4, characterized in that: The filter element assembly also has a first waste discharge port for discharging waste; The normal temperature water tank also has a second waste outlet for discharging waste, and the second waste outlet is located at the top of the normal temperature water tank; The preheating water tank also has a third waste outlet for discharging waste, and the third waste outlet is located at the top of the preheating water tank.

7. The water purifier according to any one of claims 1 to 4, characterized in that: The preheating water box also has a heating element for heating the preheating water; The preheating water tank package also has a first liquid level device for detecting the liquid level of the stored preheating water; The normal temperature water tank also has a second liquid level device for detecting the liquid level of the stored normal temperature water.

8. The water purifier according to any one of claims 1 to 4, characterized in that: The normal temperature water tank also has a sterilizer for sterilizing the stored normal temperature water, and the sterilizer includes a UV lamp; The water purifier also includes: A TDS water quality detector, disposed downstream of the first purified water outlet, for performing water quality detection on the water supplied from the first purified water outlet; The purified water flow meter is arranged downstream of the first purified water outlet and is used for counting the flow of the water supplied to the first purified water outlet.

9. The water purifier according to any one of claims 1 to 4, characterized in that: The filter element assembly comprises: A first filter element having a first reclaimed water outlet, a re-filtration inlet, the first filtration inlet and the first clean water outlet; A second filter element having a first waste outlet, a second filter inlet, and a second clean water outlet; A booster pump, connected in series between the first reclaimed water outlet and the second filter inlet; Among them, the first filter inlet is used to connect raw water, the first waste outlet is used to discharge waste water, the second clean water outlet is connected with the re-filtration inlet and the inlet of the booster pump, and a water inlet solenoid valve is also connected in series between the booster pump and the first reclaimed water outlet, and a reflux solenoid valve and a fourth one-way valve are also connected in series on the pipeline connecting the booster pump and the second clean water outlet.

10. The water purifier according to claim 9, characterized in that: The first filter element is a PCC composite filter element, and the second filter element is an RO filter element.

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