A hot and cold mixed water system and water purifier thereof

Abstract

The utility model discloses a hot and cold mixed water circuit system and a water purifier thereof, wherein the hot and cold mixed water circuit system comprises a filter module water circuit and a heating module water circuit, wherein the heating module water circuit comprises a negative pressure valve, a first pump, a second pump, a charging chamber and an instant heating pipe, wherein the water inlet of the negative pressure valve is connected to the water outlet of the filter module water circuit, the negative pressure valve, the first pump, the charging chamber and the instant heating pipe are connected in sequence, the water inlet of the second pump is connected to the water outlet of the negative pressure valve, the water outlet of the second pump is connected to the water outlet of the charging chamber, and the water discharged from the charging chamber and the second pump is combined and enters the instant heating pipe. With such a design, on the one hand, the preheating of the charging chamber shortens the heating time of the instant heating faucet, increases the water outlet flow rate of the hot water, shortens the waiting time for the user to receive water, and improves the user experience; on the other hand, the instant heating pipe can be operated at full power, and the heat of the charging chamber and the power of the instant heating pipe can be utilized to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifiers, in particular to a cold and hot mixed water waterway system and a water purifier thereof. Background Art

[0002] As people's living standards improve, they pay more and more attention to water quality and hygiene. In order to meet people's needs for drinking hot water at any time, some water purifiers on the market are equipped with instant hot water faucets to instantly heat the purified water. However, when the existing instant hot water faucets are working, the maximum current is limited to 10A by general non-air-conditioning sockets, and the total power of the machine can only reach a maximum of 2200W. According to the law of conservation of energy, the instant hot water flow rate can generally only reach 400mL / min. The instant hot water flow rate is slow, the user has a long waiting time to get water, and the user experience is not good. Utility Model Content

[0003] In order to overcome at least one defect of the above-mentioned prior art, the utility model provides a hot and cold mixed water system and a water purifier thereof to solve the problems of the existing water purifier, that is, the slow hot water flow rate, the long waiting time for users to get water, and the poor user experience.

[0004] The utility model is a technical solution adopted to solve the problem. In the first aspect, the embodiment of the utility model discloses a hot and cold mixed water waterway system, including a filter module waterway and a heating module waterway, the heating module waterway including a negative pressure valve, a first water pump, a second water pump, an energy charging chamber and an instant heating pipe, the water inlet of the negative pressure valve is connected to the water outlet of the filter module waterway, the negative pressure valve, the first water pump, the energy charging chamber and the instant heating pipe are connected in sequence, the water inlet of the second water pump is connected to the water outlet of the negative pressure valve, the water outlet of the second water pump is connected to the water outlet of the energy charging chamber, the water discharged from the energy charging chamber and the second water pump merges and enters the instant heating pipe.

[0005] As an optional implementation, in an embodiment of the first aspect of the utility model, the heating module water circuit also includes a reversing module, the water inlet of the reversing module is connected to the first water pump, the first water outlet of the reversing module is connected to the water inlet of the charging bin, and the second water outlet of the reversing module is connected to the water outlet of the charging bin.

[0006] As an optional implementation, in an embodiment of the first aspect of the utility model, the heating module water circuit also includes a charging bin water outlet NTC, a heating pipe water inlet NTC and a heating pipe water outlet NTC, the charging bin water outlet NTC is arranged at the water outlet of the charging bin, the heating pipe water inlet NTC is arranged at the water inlet of the heating pipe, and the heating pipe water outlet NTC is arranged at the water outlet of the heating pipe.

[0007] As an optional implementation, in an embodiment of the first aspect of the utility model, the water circuit of the filtration module includes a pre-filter element, a booster pump and a RO reverse osmosis filter element, the pre-filter element, the booster pump and the RO reverse osmosis filter element are connected in sequence, and the water inlet of the negative pressure valve is connected to the pure water outlet of the RO reverse osmosis filter element.

[0008] As an optional implementation, in an embodiment of the first aspect of the utility model, the filtration module water circuit also includes a pressure relief valve, the water inlet of the pressure relief valve is connected to the pure water outlet of the RO reverse osmosis filter element, and the water outlet of the pressure relief valve is connected to the water inlet of the booster pump.

[0009] As an optional implementation, in an embodiment of the first aspect of the utility model, the filter module water circuit also includes a water inlet solenoid valve, the water inlet of the water inlet solenoid valve is connected to the water outlet of the pre-filter element, and the water outlet of the water inlet solenoid valve is connected to the water inlet of the boost pump.

[0010] As an optional implementation, in an embodiment of the first aspect of the utility model, the hot and cold mixed water water system also includes a water outlet module water circuit, the water outlet module water circuit includes a water outlet solenoid valve, and the water inlet of the water outlet solenoid valve is connected to the water outlet of the instant heating pipe.

[0011] As an optional implementation, in an embodiment of the first aspect of the utility model, the water circuit of the water outlet module also includes a reflux solenoid valve, the water inlet of the reflux solenoid valve is connected to the water outlet of the instant heating pipe, and the water outlet of the reflux solenoid valve is connected to the water outlet of the negative pressure valve.

[0012] As an optional implementation, in an embodiment of the first aspect of the utility model, the hot and cold mixed water circuit system also includes a cold water solenoid valve, and the water inlet of the cold water solenoid valve is connected to the water outlet of the filter module water circuit.

[0013] In a second aspect, an embodiment of the utility model discloses a water purifier, comprising a water purifier body and the hot and cold water mixing waterway system as described above, wherein the hot and cold water mixing waterway system is arranged on the water purifier body.

[0014] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0015] The utility model is provided with a hot and cold mixed water system including a filter module waterway and a heating module waterway. The heating module waterway includes a negative pressure valve, a first water pump, a second water pump, an energy charging chamber and an instant heating pipe. The water inlet of the negative pressure valve is connected to the water outlet of the filter module waterway. The negative pressure valve, the first water pump, the energy charging chamber and the instant heating pipe are connected in sequence. The water inlet of the second water pump is connected to the water outlet of the negative pressure valve. The water outlet of the second water pump is connected to the water outlet of the energy charging chamber. The water discharged from the energy charging chamber and the second water pump merges and enters the instant heating pipe. When the user needs to use hot water, the filter module waterway filters and discharges pure water, the first water pump extracts a part of the water and preheats it into hot water through the energy charging chamber, and the second water pump extracts another part of normal temperature water. The normal temperature water and the hot water are mixed to the set temperature and then heated by the instant heating pipe. With this design, on the one hand, the preheating of the energy storage tank can shorten the heating time of the instant hot water faucet, increase the flow rate of hot water, shorten the waiting time for users to get water, and improve the user experience; on the other hand, if the energy storage tank enters the instant hot water pipe after heat exchange, since the initial water temperature of the water flow in the energy storage tank is about 100°C, the instant hot water faucet does not need to be turned on to reach the hot water temperature, the 2100W heating power is wasted, the heat of the energy storage tank is also consumed quickly, and it is difficult to maintain a high flow rate of hot water. In contrast, this patent uses the hot water (100°C-80°C) and normal temperature water (25°C) after heat exchange in the energy storage tank to dynamically mix, so that the water temperature entering the instant hot water faucet is about 76°C, and the instant hot water pipe turns on the 2100W heating power to ensure that the hot water flow rate reaches 1.5L / min in the first minute. The instant hot water pipe can run at full power, and the heat of the energy storage tank and the power of the instant hot water pipe can be maximized. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the cold and hot mixed water water system in an embodiment of the utility model.

[0018] The meanings of the reference numerals are as follows:

[0019] 10-filtration module water circuit; 11-pre-filter element; 12-boosting pump; 13-RO reverse osmosis filter element; 14-water inlet solenoid valve; 15-pressure relief valve; 16-wastewater solenoid valve; 17-check valve; 18-flow meter; 20-heating module water circuit; 21-negative pressure valve; 22-first water pump; 23-second water pump; 24-charging chamber; 25-hot water pipe; 26-reversing module; 27-charging chamber water outlet NTC; 28-hot water pipe water inlet NTC; 29-hot water pipe water outlet NTC; 3-water outlet module water circuit; 31-water outlet solenoid valve; 32-reflux solenoid valve; 4-cold water solenoid valve. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. 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 ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0022] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0023] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0024] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0025] The technical solution of the utility model will be further described below in conjunction with embodiments and drawings.

[0026] See also Figure 1 The embodiment of the utility model discloses a water purifier, which includes a water purifier body and a hot and cold water mixing waterway system, and the hot and cold water mixing waterway system is arranged on the water purifier body. The hot and cold water mixing waterway system of this scheme includes a filter module waterway 10 and a heating module waterway 20, and the heating module waterway 20 includes a negative pressure valve 21, a first water pump 22, a second water pump 23, an energy storage tank 24 and an instant heating pipe 25. The water inlet of the negative pressure valve 21 is connected to the water outlet of the filter module waterway 10, and the negative pressure valve 21, the first water pump 22, the energy storage tank 24 and the instant heating pipe 25 are connected in sequence. The water inlet of the second water pump 23 is connected to the water outlet of the negative pressure valve 21, and the water outlet of the second water pump 23 is connected to the water outlet of the energy storage tank 24. The water discharged from the energy storage tank 24 and the second water pump 23 merges and enters the instant heating pipe 25. When the user needs to use hot water, the filter module water channel 10 filters and discharges pure water, the first water pump 22 pumps out a part of the water and preheats it into hot water through the charging chamber 24, and the second water pump 23 pumps out another part of normal temperature water. The normal temperature water and hot water are mixed to the set temperature and then heated by the instant heating pipe 25. With this design, on the one hand, the preheating of the energy storage tank 24 can shorten the heating time of the instant hot water faucet, increase the water flow rate of hot water, shorten the waiting time for users to get water, and improve the user experience; on the other hand, if the energy storage tank 24 enters the instant hot water pipe 25 after heat exchange, since the initial water temperature of the water flow in the energy storage tank 24 is about 100°C, the instant hot water faucet does not need to be turned on to reach the hot water temperature, and the 2100W heating power is wasted, and the heat of the energy storage tank 24 is also consumed quickly, and it is difficult to maintain a high flow rate of hot water. In contrast, this patent uses the hot water (100°C-80°C) and normal temperature water (25°C) after heat exchange in the energy storage tank 24 to dynamically mix, so that the water temperature entering the instant hot water faucet is about 76°C, and the instant hot water pipe 25 turns on the 2100W heating power to ensure that the hot water flow rate reaches 1.5L / min in the first minute. The instant hot water pipe 25 can run at full power, and the heat of the energy storage tank 24 and the power of the instant hot water pipe 25 can be maximized.

[0027] Among them, the hot water temperature and flow rate of the water outlet from the charging chamber 24 are adjusted by regulating the flow rate of the first water pump 22, and the normal temperature water flow rate through the second water pump 23, so that the instant hot water inlet temperature entering the instant hot water pipe 25 reaches the set temperature.

[0028] In some embodiments, the heating module water circuit 20 further includes a reversing module 26, the water inlet of the reversing module 26 is connected to the first water pump 22, the first water outlet of the reversing module 26 is connected to the water inlet of the energy storage bin 24, and the second water outlet of the reversing module 26 is connected to the water outlet of the energy storage bin 24. With such a design, when the reversing module 26 is reversing to the first water outlet of the reversing module 26 connected to the water inlet of the energy storage bin 24, the energy storage bin 24 preheats the pure water, and the preheated water is hot water, and the second water pump 23 extracts another part of normal temperature water, and the normal temperature water and the hot water are mixed to the set temperature and then heated by the instant heating pipe 25, and a higher temperature of boiling water can be output; when the reversing module 26 is reversing to the second water outlet of the reversing module 26 connected to the water outlet of the energy storage bin 24, the energy storage bin 24 is not heated at this time, which is equivalent to the pure water extracted by the first water pump 22 and the second water pump 23 entering the instant heating pipe 25 for heating, thereby heating into hot water with a lower temperature.

[0029] The reversing module 26 may be a one-inlet and two-outlet solenoid valve, or may be two solenoid valves whose inlets are connected. This embodiment uses the reversing module 26 as a one-inlet and two-outlet solenoid valve as an example.

[0030] In order to be able to timely detect the water outlet temperature of the charging bin 24, the water inlet temperature and the water outlet temperature of the heat pipe 25, the heating module water circuit 20 also includes a charging bin water outlet NTC27, a heat pipe water inlet NTC28 and a heat pipe water outlet NTC29. The charging bin water outlet NTC27 is arranged at the water outlet of the charging bin 24 for detecting the water inlet temperature of the charging bin 24, the heat pipe water inlet NTC28 is arranged at the water inlet of the heat pipe 25 for detecting the water inlet temperature of the heat pipe 25, and the heat pipe water outlet NTC29 is arranged at the water outlet of the heat pipe 25 for detecting the water outlet temperature of the heat pipe 25.

[0031] In some embodiments, the filter module water circuit 10 includes a pre-filter element 11, a booster pump 12, and a RO reverse osmosis filter element 13, which are sequentially arranged. The pre-filter element 11, the booster pump 12, and the RO reverse osmosis filter element 13 are sequentially connected, and the water inlet of the negative pressure valve 21 is connected to the pure water outlet of the RO reverse osmosis filter element 13. With such a design, the tap water entering the water purifier is first coarsely filtered through the pre-filter element 11, and is pumped to the RO reverse osmosis filter element 13 under the action of the booster pump 12 for re-filtration, and finally the pure water that can be used for drinking by the user is discharged.

[0032] Furthermore, in order to control the water inflow of the filter module water circuit 10, the filter module water circuit 10 further includes a water inlet solenoid valve 14, the water inlet of the water inlet solenoid valve 14 is connected to the water outlet of the pre-filter element 11, and the water outlet of the water inlet solenoid valve 14 is connected to the water inlet of the booster pump 12. In this arrangement, when the user needs to drink water, the water inlet solenoid valve 14 is opened, and the booster pump 12 can pump water; when the user does not need to drink water, the water inlet solenoid valve 14 is closed, and the booster pump 12 cannot pump water.

[0033] In some embodiments, considering that there is a situation where the pure water filtered by the RO reverse osmosis filter element 13 is in excess of the user's demand, in order to prevent the pure water filtered by the RO reverse osmosis filter element 13 from accumulating at the outlet of the RO reverse osmosis filter element 13, the filter module water circuit 10 further includes a pressure relief valve 15, the water inlet of the pressure relief valve 15 is connected to the pure water outlet of the RO reverse osmosis filter element 13, and the water outlet of the pressure relief valve 15 is connected to the water inlet of the booster pump 12. With such a design, the pressure relief valve 15 can return the excess pure water discharged from the RO reverse osmosis filter element 13 when taking hot water to the inlet of the booster pump 12, so that the water can be pumped to the RO reverse osmosis filter element 13 for re-filtration when the user takes water next time.

[0034] In some embodiments, considering that the RO reverse osmosis filter element 13 also generates wastewater during filtration, the filter module water circuit 10 further includes a wastewater solenoid valve 16, and the water inlet of the wastewater solenoid valve 16 is connected to the wastewater outlet of the RO reverse osmosis filter element 13. With such a design, the concentrated water generated by the RO reverse osmosis filter element 13 can be discharged through the wastewater solenoid valve 16.

[0035] In some embodiments, in order to prevent the pure water discharged from the RO reverse osmosis filter element 13 from flowing back during the water production process and affecting user use, the filtration module water circuit 10 also includes a check valve 17, which is arranged at the water outlet of the RO reverse osmosis filter element 13 to prevent the pure water discharged from the RO reverse osmosis filter element 13 from flowing back.

[0036] In some embodiments, in order to calculate and indicate the pure water flow rate of the water purifier, the filtration module water circuit 10 further includes a flow meter 18, which is disposed at the water outlet of the RO reverse osmosis filter element 13 and is used to calculate the outlet flow rate of pure water.

[0037] In some embodiments, the water purifier also has a cold water discharge function, and the cold water return water circuit system further includes a cold water solenoid valve 4, and the water inlet of the cold water solenoid valve 4 is connected to the water outlet of the filter module water circuit 10. With such a design, when the user needs to drink cold water, the cold water solenoid valve 4 directly discharges cold water.

[0038] In some embodiments, the hot and cold mixed water system also includes a water outlet module water circuit 3, the water outlet module water circuit 3 includes a water outlet solenoid valve 31, the water inlet of the water outlet solenoid valve 31 is connected to the water outlet of the heating pipe 25, and the water outlet solenoid valve 31 is used to discharge water from the water purifier.

[0039] Furthermore, the water path 3 of the water outlet module also includes a reflux solenoid valve 32, the water inlet of the reflux solenoid valve 32 is connected to the water outlet of the instant heating pipe 25, and the water outlet of the reflux solenoid valve 32 is connected to the water outlet of the negative pressure valve 21. With such a design, among the water discharged after the instant heating pipe 25 is heated, the cold water at the front end that has not been heated to the set temperature flows back to the instant heating pipe 25 to be heated again, and the hot water at the rear end that has been heated to the set temperature is discharged from the water outlet solenoid valve 31. With such a design, the cold water at the front end of the instant heating pipe 25 that has not been heated to the set temperature flows back to the front of the instant heating pipe 25 through the reflux solenoid valve 32, and the user can receive the hot water heated to the set temperature at the rear end, thereby ensuring that the first section of water when the user receives hot water is hot water that meets the use requirements.

[0040] The utility model provides a water purifier, which is provided with a hot and cold mixed water system including a filter module waterway 10 and a heating module waterway 20. The heating module waterway 20 includes a negative pressure valve 21, a first water pump 22, a second water pump 23, an energy charging chamber 24 and an instant heating pipe 25. The water inlet of the negative pressure valve 21 is connected to the water outlet of the filter module waterway 10. The negative pressure valve 21, the first water pump 22, the energy charging chamber 24 and the instant heating pipe 25 are connected in sequence. The water inlet of the second water pump 23 is connected to the water outlet of the negative pressure valve 21. The water outlet of the second water pump 23 is connected to the water outlet of the energy charging chamber 24. The water discharged from the energy charging chamber 24 and the second water pump 23 merges and enters the instant heating pipe 25. When the user needs to use hot water, the filter module water channel 10 filters and discharges pure water, the first water pump 22 pumps out a part of the water and preheats it into hot water through the charging chamber 24, and the second water pump 23 pumps out another part of normal temperature water. The normal temperature water and hot water are mixed to the set temperature and then heated by the instant heating pipe 25. With this design, on the one hand, the preheating of the energy storage tank 24 can shorten the heating time of the instant hot water faucet, increase the water flow rate of hot water, shorten the waiting time for users to get water, and improve the user experience; on the other hand, if the energy storage tank 24 enters the instant hot water pipe 25 after heat exchange, since the initial water temperature of the water flow in the energy storage tank 24 is about 100°C, the instant hot water faucet does not need to be turned on to reach the hot water temperature, and the 2100W heating power is wasted, and the heat of the energy storage tank 24 is also consumed quickly, and it is difficult to maintain a high flow rate of hot water. In contrast, this patent uses the hot water (100°C-80°C) and normal temperature water (25°C) after heat exchange in the energy storage tank 24 to dynamically mix, so that the water temperature entering the instant hot water faucet is about 76°C, and the instant hot water pipe 25 turns on the 2100W heating power to ensure that the hot water flow rate reaches 1.5L / min in the first minute. The instant hot water pipe 25 can run at full power, and the heat of the energy storage tank 24 and the power of the instant hot water pipe 25 can be maximized.

[0041] The above is a detailed introduction to a hot and cold water mixing water system and a water purifier disclosed in the embodiment of the present invention. This article uses individual examples to illustrate the principle and implementation method of the present invention. The description of the above embodiments is only used to help understand the hot and cold water mixing water system and the water purifier and its core idea of ​​the present invention; at the same time, for general technical personnel in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A hot and cold water mixing waterway system, characterized in that: The invention comprises a filter module water circuit (10) and a heating module water circuit (20), wherein the heating module water circuit (20) comprises a negative pressure valve (21), a first water pump (22), a second water pump (23), an energy charging chamber (24) and an instant heating pipe (25), wherein the water inlet of the negative pressure valve (21) is connected to the water outlet of the filter module water circuit (10), the negative pressure valve (21), the first water pump (22), the energy charging chamber (24) and the instant heating pipe (25) are connected in sequence, the water inlet of the second water pump (23) is connected to the water outlet of the negative pressure valve (21), the water outlet of the second water pump (23) is connected to the water outlet of the energy charging chamber (24), and the water discharged from the energy charging chamber (24) and the second water pump (23) is combined and enters the instant heating pipe (25).

2. The hot and cold water mixing waterway system according to claim 1, characterized in that: The heating module water circuit (20) further comprises a reversing module (26), the water inlet of the reversing module (26) being connected to the first water pump (22), the first water outlet of the reversing module (26) being connected to the water inlet of the energy charging chamber (24), and the second water outlet of the reversing module (26) being connected to the water outlet of the energy charging chamber (24).

3. The hot and cold water mixing waterway system according to claim 1, characterized in that: The heating module water circuit (20) further comprises a charging chamber water outlet NTC (27), a heating pipe water inlet NTC (28) and a heating pipe water outlet NTC (29); the charging chamber water outlet NTC (27) is arranged at the water outlet of the charging chamber (24); the heating pipe water inlet NTC (28) is arranged at the water inlet of the heating pipe (25); and the heating pipe water outlet NTC (29) is arranged at the water outlet of the heating pipe (25).

4. The hot and cold water mixing waterway system according to claim 1, characterized in that: The filtration module water circuit (10) comprises a pre-filter element (11), a booster pump (12) and an RO reverse osmosis filter element (13); the pre-filter element (11), the booster pump (12) and the RO reverse osmosis filter element (13) are connected in sequence; and the water inlet of the negative pressure valve (21) is connected to the pure water outlet of the RO reverse osmosis filter element (13).

5. The hot and cold water mixing waterway system according to claim 4, characterized in that: The filter module water circuit (10) further comprises a pressure relief valve (15), the water inlet of the pressure relief valve (15) being connected to the pure water outlet of the RO reverse osmosis filter element (13), and the water outlet of the pressure relief valve (15) being connected to the water inlet of the booster pump (12).

6. The hot and cold water mixing waterway system according to claim 4, characterized in that: The filter module water circuit (10) further comprises a water inlet solenoid valve (14), the water inlet of the water inlet solenoid valve (14) being connected to the water outlet of the pre-filter element (11), and the water outlet of the water inlet solenoid valve (14) being connected to the water inlet of the booster pump (12).

7. The hot and cold water mixing waterway system according to claim 1, characterized in that: The hot and cold mixed water circuit system further comprises a water outlet module water circuit (3), wherein the water outlet module water circuit (3) comprises a water outlet solenoid valve (31), and the water inlet of the water outlet solenoid valve (31) is connected to the water outlet of the instant heating pipe (25).

8. The hot and cold water mixing waterway system according to claim 7, characterized in that: The water outlet module water circuit (3) further comprises a reflux solenoid valve (32), the water inlet of the reflux solenoid valve (32) being connected to the water outlet of the instant heating pipe (25), and the water outlet of the reflux solenoid valve (32) being connected to the water outlet of the negative pressure valve (21).

9. The hot and cold water mixing water system according to claim 1, characterized in that: The hot and cold mixed water circuit system further comprises a cold water solenoid valve (4), the water inlet of the cold water solenoid valve (4) being connected to the water outlet of the filter module water circuit (10).

10. A water purifier, characterized in that: It comprises a water purifier body and a hot and cold water mixing waterway system as claimed in any one of claims 1 to 9, wherein the hot and cold water mixing waterway system is arranged on the water purifier body.

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