Waterway system and multifunctional water dispenser with hot water high-temperature circulating sterilization function

Abstract

The utility model discloses a waterway system and a multifunctional water dispenser with hot water high-temperature circulation sterilization, which comprises a water inlet structure, a water tank, a waterway reversing device and a water outlet structure, the water inlet structure is used for feeding water into the water tank, and the waterway reversing device comprises a first water outlet end and a second water outlet end. A first water outlet end of the waterway reversing device is connected with the water outlet structure, and a second water outlet end of the waterway reversing device is connected with the water tank; a first water path structure and a second water path structure are connected between the water tank and the water inlet end of the water path reversing device, the first water path structure comprises a first water path driving device and a heating body, and the first water path driving device is used for driving water in the water tank to flow to the water path reversing device after passing through the heating body; the second water path structure comprises an ice liner and a second water path driving device; the second water path driving device is used for driving water in the water tank to flow to the water path reversing device after passing through the ice liner. The water purifier has the effects of multifunctionality, large water outlet flow and high-temperature circulating sterilization.

Description

Technical Field

[0001] The utility model relates to the technical field of drinking water equipment, in particular to a water circuit system and a multifunctional water dispenser with hot water high-temperature circulating sterilization. Background Art

[0002] The existing Chinese patent with the publication number of CN219624247U discloses a water tankless water circuit system, which includes an inlet solenoid valve arranged upstream of the water circuit system, a power supply board, and a radiator for transferring the heat generated by the power supply board to the water circuit system to produce hot water. A negative pressure valve is connected between the inlet solenoid valve and the radiator. A flow meter is arranged downstream of the water circuit system, and a heating and water outlet structure is connected downstream of the flow meter.

[0003] However, the above water circuit system has the following disadvantages: it quickly heats up the water source entering through the inlet solenoid valve through a heating module to prepare hot water. However, like the existing pipeline machines on the market, the drainage flow of this quickly heating water circuit system is small. And after long-term use, due to the lack of sterilization equipment in the pipeline before the heating element, bacteria are likely to breed in the water circuit system before the heating element, which urgently needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a water circuit system and a multifunctional water dispenser with hot water high-temperature circulating sterilization, which have the effects of multifunctionality, large water outlet flow, and high-temperature circulating sterilization.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: A water circuit system includes a water inlet structure, a water tank, a water circuit reversing device, and a water outlet structure. The water inlet structure is used for filling water into the water tank. The water circuit reversing device includes a first water outlet end and a second water outlet end. The first water outlet end of the water circuit reversing device is connected to the water outlet structure, and the second water outlet end of the water circuit reversing device is connected to the water tank;

[0006] A first water circuit structure and a second water circuit structure are connected between the water tank and the water inlet end of the water circuit reversing device. The first water circuit structure includes a first water circuit driving device and a heating element. The first water circuit driving device is used to drive the water in the water tank to flow through the heating element and then to the water circuit reversing device. The second water circuit structure includes an ice tank and a second water circuit driving device. The second water circuit driving device is used to drive the water in the water tank to flow through the ice tank and then to the water circuit reversing device.

[0007] By adopting the above technical solution, the water inlet structure is used to fill water into the water tank. First, keep the second waterway driving device closed. The water in the water tank is driven by the first waterway driving device, heated by the heating body, and then flows back to the water tank from the second water outlet end of the waterway reversing device. After circulating multiple times, the heating body is used to gradually heat the water source in the water tank until it boils. When the water in the water tank boils, close the first waterway driving device and open the second waterway driving device. The second waterway driving device partially returns the water in the ice tank to the water tank through the waterway reversing device to mix with the hot water. Then, start the first waterway driving device again, so that a part of the water source in the water tank is circulated and heated by the heating body, and another part of the water source in the water tank flows into the ice tank to mix and circulates back to the water tank through the waterway reversing device. After circulating multiple times like this, ensure that the hot water in the entire waterway system reaches the boiling temperature, and use the boiling hot water to comprehensively sterilize the pipelines and components in the entire waterway system except for the water inlet structure part at high temperature. When hot water needs to be taken later, by closing the second waterway driving device and opening the first water outlet end of the waterway reversing device, the water source in the water tank is heated to the boiling temperature by the heating body to form hot water and is discharged from the water outlet structure for use. When warm water, cooled boiled water or ice water needs to be taken, by closing the first waterway driving device and opening the second waterway driving device and the first water outlet end of the waterway reversing device, and at the same time opening the ice tank, at this time, the hot water in the water tank is quickly cooled to a predetermined temperature by the ice tank and then discharged from the water outlet structure for use, realizing the function of taking boiling water, warm water and cooled boiled water. At the same time, different from the situation in the market where the hot water flow rate is small when using the instant heating method, the present utility model is provided with a high-temperature hot water circulation waterway, so that the hot water in the water tank always remains within the boiling temperature range. When taking water, only through the secondary heating of the heating body or the quick and active cooling of the ice tank, the quick large-flow water outlet at a predetermined temperature can be realized. At the same time, during the high-temperature hot water circulation process, the high-temperature hot water can be used to sterilize the entire waterway system including the water tank and the ice tank at high temperature. In addition, the water outlet end of the ice tank in the first waterway is connected to the water outlet end of the heating body in the second waterway, so that the water passing through the ice tank does not flow through the heating body, and the first waterway and the second waterway are in two separate waterway systems, which can effectively prevent cold water in the ice tank from remaining in the heating body when receiving hot water, resulting in cold water flowing out at the front stage of receiving water, so as to ensure that hot water can be immediately discharged when receiving hot water, having the effects of multifunctionality, large water outlet flow rate and high-temperature circulation sterilization.

[0008] A further setting of the present utility model is that: a three-way pipe is provided between the waterway reversing device and the heating body. The three-way pipe includes a first water inlet, a second water inlet and a water outlet. The first water inlet of the three-way pipe is connected to the water outlet end of the first waterway structure, the second water inlet of the three-way pipe is connected to the water outlet end of the second waterway structure, and the water outlet of the three-way pipe is connected to the water inlet end of the waterway reversing device.

[0009] By adopting the above technical solution, the tee pipe can be used to quickly and efficiently connect the water outlet ends of the first waterway and the second waterway to the water inlet end of the waterway commutation device, effectively avoiding the clutter of pipelines when multiple pipelines are connected, and being beneficial to reducing the occupied space during pipeline wiring.

[0010] A further setting of the present utility model is that: the waterway commutation device is set as a commutation valve, and a high-temperature circulation waterway is connected between the second water outlet end of the commutation valve and the water tank.

[0011] By adopting the above technical solution, the commutation valve is used to realize the conduction or closing of the high-temperature circulation waterway and the waterway of the water outlet structure. Different from the way of separately controlling by respectively arranging electromagnetic control valves on the high-temperature circulation waterway and the waterway of the water outlet structure in the market, the control method of setting the commutation valve in the present utility model occupies less space, making the structure of the present utility model more compact.

[0012] A further setting of the present utility model is that: the water outlet structure includes a steam-water separator and a water outlet pipeline connected between the steam-water separator and the first water outlet end of the waterway commutation device.

[0013] By adopting the above technical solution, the steam-water separator can separate the water vapor from the hot water, prevent the hot water from splashing when discharging hot water, and improve the anti-scald property when receiving hot water.

[0014] A further setting of the present utility model is that: the heating body is provided with an inlet water temperature sensor and / or an outlet water temperature sensor that are controlled in cooperation with the waterway commutation device.

[0015] By adopting the above technical solution, the inlet water temperature sensor and the outlet water temperature sensor can respectively monitor the water temperatures at the inlet and outlet of the heating body. When it is detected that the water temperature in the heating body does not reach the predetermined temperature value, feedback control is used to continue heating the water source inside the heating body, and the first water outlet end of the waterway commutation device is controlled to be closed. At this time, the water source flowing out of the outlet of the heating body returns to the water tank through the second water outlet end of the waterway commutation device to continue the heating cycle. When it is detected that the water temperature in the heating body reaches the boiling temperature, at this time, feedback control is used to open the first water outlet end of the waterway commutation device, and the user can obtain hot water through the water outlet structure.

[0016] A further setting of the present utility model is that: both the first waterway driving device and the second waterway driving device are set as diaphragm pumps, a first one-way valve is provided between the first waterway driving device and the heating body, and a second one-way valve is provided between the second waterway driving device and the waterway commutation device.

[0017] By adopting the above technical solution, the first one-way valve can prevent the water flow in the heating body from flowing back into the water tank, and the second one-way valve can prevent the hot water at the water outlet end of the heating body from flowing back into the ice tank.

[0018] A further setting of the present utility model is that the water tank is provided with a high water level switch and a low water level switch; the water tank is provided with a float switch, and the high water level switch is arranged between the float switch and the low water level switch.

[0019] By adopting the above technical solution, the high water level switch and the low water level switch can be used to monitor the water level of the water tank in real time to determine whether water needs to be inlet or the inlet should be stopped; the float switch is arranged above the high water level switch. When the high water level switch fails and water inlet causes the water level in the water tank to be too high, the float switch can be used at this time to close the water inlet of the water tank, achieving the purpose of mechanically blocking the water inlet to stop water inlet.

[0020] A further setting of the present utility model is that the ice tank is provided with an ice tank temperature sensor.

[0021] By adopting the above technical solution, the ice tank temperature sensor can monitor the water temperature in the ice tank in real time.

[0022] A further setting of the present utility model is that all pipelines of the first waterway structure, the second waterway structure and the high-temperature circulation waterway adopt high-temperature resistant food-grade connecting pipes.

[0023] By adopting the above technical solution, the connecting pipes made of high-temperature resistant food-grade materials can enable the entire waterway system of the present utility model to withstand high temperatures, and at the same time improve the safety of drinking water.

[0024] Another technical object of the present utility model is to provide a multi-functional water dispenser with hot water high-temperature circulation sterilization, including the above waterway system.

[0025] In summary, the present utility model has the following beneficial effects:

[0026] 1. By arranging an inlet structure, a water tank, a waterway commutation device and an outlet structure in the waterway system, the second outlet end of the waterway commutation device is connected to the water tank, and a first waterway structure and a second waterway structure are connected between the water tank and the inlet end of the waterway commutation device. The first waterway structure includes a first waterway driving device and a heating body, and the second waterway structure includes an ice tank and a second waterway driving device. The inlet structure is used to inlet water into the water tank. By controlling the first waterway and the second waterway to operate alone or simultaneously, the present utility model has the functions of dispensing boiling water, warm water and cooled boiled water.

[0027] 2. Since the present utility model is provided with a high-temperature hot water circulation waterway, the hot water in the water tank always remains within the boiling temperature range. When taking water, only by secondary heating of the heating body or rapid active cooling of the ice tank, rapid large-flow water outlet at a predetermined temperature can be achieved.

[0028] 3. During the circulation of the high-temperature hot water of the present utility model, the entire water circuit system including the water tank and the ice tank is sterilized at high temperature by using the high-temperature hot water, so as to achieve the sterilization and inactivation of the entire water circuit system.

[0029] 4. The water outlet end of the ice tank in the first water circuit of the present utility model is connected to the water outlet end of the heating body in the second water circuit, so that the water passing through the ice tank does not flow through the heating body, and the first water circuit and the second water circuit are in two separate water circuit systems, which can effectively prevent cold water in the ice tank from remaining in the heating body when receiving hot water, resulting in cold water flowing out at the front stage of receiving water, thus ensuring that hot water can be immediately obtained when receiving hot water. Description of the Drawings

[0030] Figure 1 It is the structural diagram of the water circuit system of the present utility model.

[0031] Figure 2 It is the water circuit connection diagram of the present utility model.

[0032] In the figure: 1. Water inlet structure; 11. Water inlet pipeline; 12. Solenoid valve; 2. Water tank; 20. Ventilation port; 21. High water level switch; 22. Low water level switch; 23. Float switch; 3. Water circuit reversing device; 4. Water outlet structure; 41. Water vapor separator; 42. Water outlet pipeline; 5. First water circuit structure; 51. First water circuit driving device; 511. First one-way valve; 52. Heating body; 521. Inlet water temperature sensor; 522. Outlet water temperature sensor; 6. Second water circuit structure; 61. Second water circuit driving device; 611. Second one-way valve; 62. Ice tank; 621. Ice tank temperature sensor; 7. Three-way pipe; 8. High-temperature circulation water circuit; 9. Drainage pipeline. Detailed Embodiment

[0033] The present utility model will be further described below with reference to the accompanying drawings.

[0034] A water circuit system, as Figure 1-2As shown in the figure, it includes a water inlet structure 1, a water tank 2, a water path switching device 3, and a water outlet structure 4. The water tank 2 is arranged above the ice tank 62, and a ventilation port 20 is provided at the top of the water tank 2. The water inlet structure 1 includes a water inlet pipeline 11 and a solenoid valve 12. The water inlet structure 1 is used to supply water to the water tank 2. The water path switching device 3 includes a first water outlet end and a second water outlet end. The first water outlet end of the water path switching device 3 is connected to the water outlet structure 4, and the second water outlet end of the water path switching device 3 is connected to the water tank 2. A first water path structure 5 and a second water path structure 6 are connected between the water tank 2 and the water inlet end of the water path switching device 3. The first water path structure 5 includes a first water path driving device 51 and a heating element 52. The first water path driving device 51 is used to drive the water in the water tank 2 to flow through the heating element 52 and then to the water path switching device 3. The second water path structure 6 includes an ice tank 62 and a second water path driving device 61. The second water path driving device 61 is used to drive the water in the water tank 2 to flow through the ice tank 62 and then to the water path switching device 3. In this embodiment, a drain pipeline 9 is connected to the bottoms of the ice tank 62 and the heating element 52.

[0035] As Figure 1 shown, a tee pipe 7 is provided between the water path switching device 3 and the heating element 52. The tee pipe 7 includes a first water inlet, a second water inlet, and a water outlet. The first water inlet of the tee pipe 7 is connected to the water outlet end of the first water path structure 5, the second water inlet of the tee pipe 7 is connected to the water outlet end of the second water path structure 6, and the water outlet of the tee pipe 7 is connected to the water inlet end of the water path switching device 3. By using the tee pipe 7, the rapid and efficient connection between the water outlet ends of the first water path and the second water path and the water inlet end of the water path switching device 3 can be realized, which can effectively avoid the messy situation of pipelines when multiple pipelines are connected, and is beneficial to reducing the occupied space when wiring the pipelines. The water path switching device 3 is set as a reversing valve, and the reversing valve is arranged near the water outlet structure 4 at the water outlet end of the heating element 52. A high-temperature circulation water path 8 is connected between the second water outlet end of the reversing valve and the water tank 2. By using the reversing valve, the conduction or closing of the high-temperature circulation water path 8 and the water path of the water outlet structure 4 can be realized. Different from the way of separately controlling by setting solenoid control valves on the high-temperature circulation water path 8 and the water path of the water outlet structure 4 in the market, the control method of setting the reversing valve in the present utility model occupies less space, making the structure of the present utility model more compact.

[0036] As Figure 1-2As shown, the water outlet structure 4 includes a water-vapor separator 41 and a water outlet pipeline 42 connected between the water-vapor separator 41 and the first water outlet end of the water path switching device 3. The water-vapor separator 41 can separate water and vapor from the hot water, preventing steam from being entrained when discharging hot water and avoiding hot water splashing, thus improving the anti-scald property when receiving hot water. The heating element 52 is provided with an inlet water temperature sensor 521 and an outlet water temperature sensor 522 that are cooperatively controlled with the water path switching device 3. The inlet water temperature sensor 521 and the outlet water temperature sensor 522 can respectively monitor the water temperatures at the inlet and outlet of the heating element 52. When the inlet water temperature sensor 521 detects that the water temperature at the inlet of the heating element 52 does not reach the predetermined temperature value, it feeds back to control the heating element 52 to continue heating the water source inside it, and controls the first water outlet end of the water path switching device 3 to close. At this time, the water source flowing out of the outlet of the heating element 52 returns to the water tank 2 through the second water outlet end of the water path switching device 3 to continue the heating cycle. When the outlet water temperature sensor 522 detects that the water temperature at the outlet of the heating element 52 reaches the boiling temperature, it feeds back to control the first water outlet end of the water path switching device 3 to open, and the user can obtain hot water through the water outlet structure 4. The first water path driving device 51 and the second water path driving device 61 are both configured as diaphragm pumps. A first one-way valve 511 is provided between the first water path driving device 51 and the heating element 52, and a second one-way valve 611 is provided between the second water path driving device 61 and the water path switching device 3. The first one-way valve 511 can prevent the water flow in the heating element 52 from flowing back into the water tank 2, and the second one-way valve 611 can prevent the hot water at the outlet end of the heating element 52 from flowing back into the ice tank 62. The ice tank 62 is provided with an ice tank temperature sensor 621 for real-time monitoring of the water temperature inside the ice tank 62. It further includes a control unit. The inlet water temperature sensor 521, the outlet water temperature sensor 522, the heating element 52, the reversing valve, and the ice tank temperature sensor 621 are respectively electrically connected to the control unit. The control unit is used to feedback control the start and stop of the heating of the heating element 52 and the opening or closing of the first water outlet end and the second water outlet end of the reversing valve. In this embodiment, the high-temperature circulating water path 8 is set as a normally open water path, and the water outlet pipeline 42 is set as a normally closed water path.

[0037] As Figure 1As shown in the figure, the water tank 2 is provided with a high water level switch 21 and a low water level switch 22. By using the high water level switch 21 and the low water level switch 22, the water level of the water tank 2 can be monitored in real time to determine whether water needs to be inlet or the inlet should be stopped; the water tank 2 is provided with a float switch 23. The high water level switch 21 is arranged between the float switch 23 and the low water level switch 22, and the float switch 23 is arranged above the high water level switch 21. When the high water level switch 21 fails and water inlet causes the liquid level in the water tank 2 to be too high, the float switch 23 can be used to close the water inlet of the water tank 2, achieving the purpose of mechanically blocking the water inlet to stop water inlet; in this embodiment, all the pipelines of the first waterway structure, the second waterway structure and the high-temperature circulation waterway are made of high-temperature resistant food-grade connecting pipes. The connecting pipes made of high-temperature resistant food-grade materials can enable the entire waterway system of the present utility model to withstand high temperatures and improve the safety of drinking water at the same time.

[0038] The basic working principle of the present utility model is as follows: An inlet structure 1, a water tank 2, a water path reversing device 3 and an outlet structure 4 are provided in the water path system. The second outlet end of the water path reversing device 3 is connected to the water tank 2. A first water path structure 5 and a second water path structure 6 are connected between the water tank 2 and the inlet end of the water path reversing device 3. The first water path structure 5 includes a first water path driving device 51 and a heating element 52, and the second water path structure 6 includes an ice tank 62 and a second water path driving device 61. The inlet structure 1 is used to fill water into the water tank 2. During the high-temperature cycle water path circulation, first, keep the second water path driving device 61 closed and the first water path driving device 51 open. The water in the water tank 2 flows into the heating element 52 under the drive of the first water path driving device 51 and is heated and raised in temperature. When the water temperature sensor 521 at the inlet of the heating element 52 detects that the water temperature at the inlet of the heating element 52 has not reached the predetermined temperature value, it feeds back to control the heating element 52 to continue heating the water source inside it, and controls the first outlet end of the water path reversing device 3 to remain in the closed state. At this time, the water in the water tank 2 flows through the heating element 52 under the drive of the first water path driving device 51 and then returns to the water tank 2 from the second outlet end of the water path reversing device 3. After circulating multiple times, the heating element 52 is used to gradually heat the water source in the water tank 2 until it boils. When the water temperature sensor 522 at the outlet of the heating element 52 detects that the water temperature at the outlet of the heating element 52 has reached the boiling temperature, at this time, it feeds back to control the first outlet end of the water path reversing device 3 to open, and the user can obtain hot water through the outlet structure 4. In addition, when the water in the water tank 2 boils, the control unit feeds back to control the first water path driving device 51 to be closed and the second water path driving device 61 to be opened. The second water path driving device 61 partially returns the water in the ice tank 62 to the water tank 2 through the water path reversing device 3 and mixes it with the hot water. Then, start the first water path driving device 51 again, so that a part of the water source in the water tank 2 is circulated and heated through the heating element 52, and another part of the water source in the water tank 2 flows into the ice tank 62 to be mixed and then circulates back to the water tank 2 through the water path reversing device 3. After circulating multiple times like this, it is ensured that the hot water in the entire water path system reaches the boiling temperature, and the boiling hot water is used to comprehensively sterilize the pipelines and components in the other entire water path system except for the inlet structure 1 at high temperature. When hot water needs to be obtained subsequently, by closing the second water path driving device 61 and opening the first outlet end of the water path reversing device 3, the water source in the water tank 2 is heated to the boiling temperature through the heating element 52 to form hot water and is discharged and obtained through the outlet structure 4. When warm water, cooled boiled water or ice water needs to be obtained, by closing the first water path driving device 51 and opening the second water path driving device 61 and the first outlet end of the water path reversing device 3, and at the same time turning on the ice tank 62, at this time, the hot water in the water tank 2 is quickly cooled to the predetermined temperature through the ice tank 62 and then discharged and obtained through the outlet structure 4, realizing the ability to obtain boiling water, warm water and cooled boiled water.Meanwhile, different from the situation in the market where the hot water flow rate is relatively small when using the instant heating method, the utility model enables the hot water in the water tank 2 to always remain within the boiling temperature range by adding a high-temperature hot water circulation waterway. When taking water, only by the secondary heating of the heating element 52 or the rapid active cooling of the ice tank 62, it is possible to achieve rapid large-flow water outlet at a predetermined temperature. Meanwhile, during the high-temperature hot water circulation process, the high-temperature hot water can be used to perform high-temperature sterilization on the entire waterway system including the water tank 2 and the ice tank 62. In addition, the water outlet end of the ice tank 62 located in the first waterway is connected to the water outlet end of the heating element 52 in the second waterway, so that the water passing through the ice tank 62 does not flow through the heating element 52, making the first waterway and the second waterway in two separate waterway systems, which can effectively prevent cold water in the ice tank 62 from remaining in the heating element 52 and causing cold water to flow out at the front stage of water connection, thus ensuring that hot water can be immediately obtained when connecting hot water, and having the effects of multifunctionality, large water outlet flow rate, and high-temperature cycle sterilization.

[0039] The utility model provides a multifunctional water dispenser with high-temperature cycle sterilization of hot water, including the above waterway system.

[0040] The above description is only a preferred embodiment of the utility model. Therefore, any equivalent changes or modifications made according to the structures, features, and principles described in the scope of the utility model patent application are included in the scope of the utility model patent application.

Claims

1. A waterway system, characterized in that: The invention comprises a water inlet structure (1), a water tank (2), a water channel reversing device (3) and a water outlet structure (4), wherein the water inlet structure (1) is used to supply water to the water tank (2), the water channel reversing device (3) comprises a first water outlet end and a second water outlet end, the first water outlet end of the water channel reversing device (3) is connected to the water outlet structure (4), and the second water outlet end of the water channel reversing device (3) is connected to the water tank (2); A first water channel structure (5) and a second water channel structure (6) are connected between the water tank (2) and the water inlet end of the water channel reversing device (3); the first water channel structure (5) comprises a first water channel driving device (51) and a heating body (52); the first water channel driving device (51) is used to drive the water in the water tank (2) to flow through the heating body (52) to the water channel reversing device (3); the second water channel structure (6) comprises an ice liner (62) and a second water channel driving device (61); the second water channel driving device (61) is used to drive the water in the water tank (2) to flow through the ice liner (62) to the water channel reversing device (3).

2. A waterway system according to claim 1, characterized in that: A three-way pipe (7) is provided between the water channel reversing device (3) and the heating body (52), the three-way pipe (7) comprising a first water inlet, a second water inlet and a water outlet, the first water inlet of the three-way pipe (7) being connected to the water outlet end of the first water channel structure (5), the second water inlet of the three-way pipe (7) being connected to the water outlet end of the second water channel structure (6), and the water outlet of the three-way pipe (7) being connected to the water inlet end of the water channel reversing device (3).

3. A waterway system according to claim 2, characterized in that: The water circuit reversing device (3) is configured as a reversing valve, and a high-temperature circulating water circuit (8) is connected between the second water outlet end of the reversing valve and the water tank (2).

4. A waterway system according to claim 1, characterized in that: The water outlet structure (4) comprises a water vapor separator (41) and a water outlet pipeline (42) connected between the water vapor separator (41) and a first water outlet end of the water channel reversing device (3).

5. A waterway system according to claim 1, characterized in that: The heating body (52) is provided with a water inlet temperature sensor (521) and / or a water outlet temperature sensor (522) which are controlled and coordinated with the water channel reversing device (3).

6. A waterway system according to claim 1, characterized in that: The first water channel drive device (51) and the second water channel drive device (61) are both configured as diaphragm pumps; a first one-way valve (511) is provided between the first water channel drive device (51) and the heating body (52); and a second one-way valve (611) is provided between the second water channel drive device (61) and the water channel reversing device (3).

7. A waterway system according to claim 1, characterized in that: The water tank (2) is provided with a high water level switch (21) and a low water level switch (22); the water tank (2) is provided with a float switch (23), and the high water level switch (21) is arranged between the float switch (23) and the low water level switch (22).

8. A waterway system according to claim 7, characterized in that: The ice chamber (62) is provided with an ice chamber temperature sensor (621).

9. A waterway system according to claim 3, characterized in that: All pipelines of the first water channel structure (5), the second water channel structure (6) and the high-temperature circulating water channel (8) are made of high-temperature resistant food-grade connecting pipes.

10. A multifunctional water dispenser with hot water high temperature circulation sterilization, characterized in that: A waterway system as claimed in any one of claims 1 to 9.

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