An integrated internal circulation heat preservation air purifier

Abstract

This application discloses an integrated internal circulation heat purifier, including an integrated heat preservation and heating tank, an outer heat preservation tank with a heat preservation water chamber, an inner heating tank with a heating water chamber inside the outer heat preservation tank, and a heating device inside the heating water chamber. The integrated heat preservation and heating tank also has a first water supply drive device for supplying water from the heat preservation water chamber to the heating water chamber. The integrated heat preservation and heating tank has a hot water outlet and an internal circulation heat preservation water circuit. The heating device is located inside the heating water chamber, and heat is transferred to the heating device through the hot water in the heat preservation water chamber, avoiding the water inside the heating device from exchanging heat with the outside atmosphere and cooling down to room temperature. The water inside the heating device is kept at room temperature, effectively shortening the preheating waiting time, and the set temperature can be quickly reached in the initial stage of water output.

Description

Technical Field

[0001] This application relates to the field of water purifier technology, specifically to an integrated internal circulation heat preservation water purifier. Background Technology

[0002] Water purifiers, as water treatment devices that can deeply filter and purify water according to usage requirements, are gaining increasing recognition and favor among consumers. Currently, a type of integrated purifier and heat pump has emerged on the market, allowing consumers to simultaneously access both ambient temperature purified water and hot water, gradually replacing older water purifiers with only a single purification function.

[0003] Currently, integrated water purifiers and heaters with instant heating function are quite common on the market. These integrated water purifiers and heaters include a filter unit, a hot water tank, and an instant heating device. The pure water filtered by the filter unit can be heated in the instant heating device. Hot water can be directly output from the faucet or stored in the hot water tank. After the temperature of the hot water in the hot water tank drops, it can also be circulated and heated and kept warm by the instant heating device.

[0004] In addition, there is another type of high-flow-rate water purifier and heater with instant heating function. This type of water purifier and heater includes a filter unit, a room temperature water tank, a hot water tank, and an instant heating device. The purified water filtered by the filter unit is output to the room temperature water tank, which then replenishes the hot water tank. At the same time, the room temperature water in the room temperature water tank and the hot water in the hot water tank can both be heated by the instant heating device and output from the faucet. The hot water tank can still be circulated and kept warm by the instant heating device.

[0005] In the above solutions, the instant heating devices are all externally installed, for example, fixed to the outside of the water tank or the outside of the main bracket with screws, and need to be as far away as possible from the water circuit structure of the water purifier to avoid water leakage causing the electronic components of the instant heating device to short-circuit when exposed to water.

[0006] Because the hot water in an instant water heater isn't always used up, some water often remains. When hot water isn't used for a long time, the remaining hot water inside the heater cools down due to heat exchange with the outside atmosphere, eventually reaching room temperature. When hot water is dispensed again, the heater heats up the low-temperature water slowly. In this case, the water needs to be preheated for 2-5 seconds before being dispensed, prolonging the user's waiting time. Alternatively, it can dispense low-temperature water directly, allowing the temperature to gradually rise during dispensing, resulting in the water temperature being lower than the set temperature for the first few seconds. Another option is to dispense hot water at a low flow rate initially, gradually increasing the flow rate as the water temperature rises. Clearly, regardless of the dispensing method, all of these methods reduce the user experience.

[0007] In addition, when the instant hot water device has not been used for a long time, in addition to the hot water inside it dropping to room temperature, its own temperature will also reach room temperature. When hot water is taken again, the instant hot water device not only has to heat the room temperature water inside it, but also has to preheat itself, resulting in the initial water temperature being too low. Utility Model Content

[0008] This application provides an integrated internal circulation heat purifier, which solves the technical problems in existing integrated heat purifiers where the hot water temperature drops significantly when the instant heating device has not been used for a long time, resulting in long reheating time, low outlet water temperature, and low outlet water flow.

[0009] The technical solution adopted in this application is as follows:

[0010] An integrated internal circulation heat preservation air purifier includes:

[0011] The integrated heat-insulating and heating tank includes an outer heat-insulating tank with a heat-insulating water cavity; an inner heating tank with a heating water cavity is provided inside the outer heat-insulating tank; a heating device is provided inside the heating water cavity; the integrated heat-insulating and heating tank also includes a first water supply drive device for supplying water from the heat-insulating water cavity to the heating water cavity.

[0012] A room temperature water tank is available to replenish water into the insulated water chamber.

[0013] The filtration unit is used to filter the raw water into pure water and deliver it to the ambient temperature water tank.

[0014] The heat-insulating and heating integrated tank has a hot water outlet and an internal circulation heat-insulating water channel;

[0015] In the hot water outlet circuit, the water in the insulated water chamber flows to the heating inner tank under the drive of the first water supply drive device, and after being heated by the heating device, it flows to the faucet to output heated water;

[0016] The internal circulation insulated water circuit is used to ensure that the water in the insulated water chamber flows to the heating inner tank under the drive of the first water supply drive device. After being heated by the heating device, the water flows back to the insulated water chamber to maintain the water in the insulated water chamber at a temperature not lower than the preset temperature.

[0017] In this technical solution, the water purifier is equipped with a filtration unit, a normal temperature water tank, and an integrated heating and insulated tank. The filtration unit filters the raw water into pure water, which is stored in the normal temperature water tank. The normal temperature water tank can quickly replenish the integrated heating and insulated tank. During replenishment, the hot water in the outer insulated tank of the integrated heating and insulated tank is squeezed into the inner heating tank using the principle of water displacement for secondary heating, shortening the heating time and achieving rapid hot water output. It also allows the water in the outer insulated tank to circulate and renew automatically, preventing bacteria growth in stagnant water areas. The water in the inner heating tank can be transported to the outside or returned to the outer insulated tank, thereby maintaining the water in the insulated water chamber at a temperature no lower than the preset temperature, ensuring a constant supply of hot water at a suitable temperature.

[0018] Because the heating device is located inside the heating water chamber, heat is transferred to the heating device through the hot water in the insulated water chamber. This avoids the water inside the heating device exchanging heat with the outside atmosphere and cooling down to room temperature. The water inside the heating device remains at a constant temperature, effectively shortening the preheating time and allowing the set temperature to be reached quickly from the initial water output stage. Furthermore, integrating the heating device directly into the insulated outer tank achieves a physical fusion of heat storage and heating functions, effectively reducing the space occupied by traditional separate heat storage and heating systems. It also helps shorten the water replenishment path from the insulated water chamber to the heating water chamber, simplifying the water circuit structure and improving the water replenishment and heating speed. More importantly, integrating the heating water chamber into the insulated water chamber makes heating and insulation an independent system, improving the system's operational stability and maximizing the utilization of thermal energy within the system. Simultaneously, isolating the insulated water chamber from the heating water chamber ensures a uniform and stable water temperature within the insulated water chamber.

[0019] By setting up an internal circulation insulated water circuit, a constant water temperature is achieved within the insulated heating integrated tank. Furthermore, by integrating the heating device and the insulated water chamber into a single integrated tank, heat energy circulates within the integrated tank, optimizing the piping layout of high-temperature components within the heat purifier, improving heat energy utilization, and enabling the product to achieve Level 1 energy efficiency. Simultaneously, by setting up a normal-temperature water tank to supply water to the insulated water chamber of the insulated heating integrated tank, a stable water source is ensured. The insulated water chamber also contains an embedded heating water chamber, effectively preventing the heating device from dry-burning and extending its lifespan. The insulated heating integrated tank of this application demonstrates excellent performance in extending the lifespan of the heating device, improving heat energy utilization, ensuring stable water levels, and maintaining a constant water temperature.

[0020] The heating device is located inside the heating water chamber. The water temperature in the heating water chamber will always be maintained at a temperature no lower than that in the insulation water chamber. After the water in the heating water chamber is heated, the initial water temperature will inevitably be higher than that in the insulation water chamber. This creates a three-gradient water temperature system, consisting of room temperature water in the room temperature tank, hot water in the insulation water chamber, and hot water in the heating water chamber, to meet the user's requirement for any water temperature.

[0021] The heating device is located inside the heating water chamber. When the heating device is working, that is, when it heats the water in the heating water chamber, it can also transfer the temperature of the heating inner tank to the water in the heat preservation water chamber through heat transfer. This allows the heating device to heat the water in the heat preservation water chamber appropriately each time it works, thereby appropriately reducing the frequency of water circulation and heating in the heat preservation water chamber. It can also make good use of the heat lost by the traditional external instant heating device, thus indirectly solving the problem of internal temperature rise caused by the operation of the external instant heating device.

[0022] The ambient temperature water tank has an ambient temperature water outlet and a water supply outlet;

[0023] The room temperature water outlet circuit is such that the water in the room temperature water tank flows to the faucet under the drive of the second water supply drive device to output room temperature water.

[0024] The water replenishment circuit replenishes water from the ambient temperature water tank to the heat preservation and heating integrated tank, and maintains the water level in the heat preservation water cavity at a level not lower than a preset level, wherein the preset water level is not lower than the heating device; when the internal circulation heat preservation water circuit or the ambient temperature water outlet water circuit is in operation, the water replenishment circuit is suspended.

[0025] In this technical solution, the water level in the heat preservation water chamber is maintained at a level not lower than the preset water level to ensure a large flow of warm water. At the same time, the height of the preset water level is not lower than that of the heating device, which effectively prevents the heating device from burning dry and extends the life of the heating device.

[0026] The water supply circuit includes a preheating pipeline that connects the ambient temperature water tank to the heating water chamber, and a water supply pump is installed on the preheating pipeline;

[0027] The heat-insulating heating integrated tank is provided with a return pipe, one end of which is connected to the outlet of the heating water chamber, and the other end of which is connected to the heat-insulating water chamber.

[0028] The water in the ambient temperature water tank flows through the heating water chamber, is heated by the heating device, and then enters the heat preservation water chamber through the return pipe, thereby preheating the replenishment water source.

[0029] In this technical solution, room temperature water in the room temperature water tank is injected into the heating water chamber through a preheating pipeline via a water replenishment pump. After being heated by the heating device, it enters the insulation water chamber through a return pipeline, ensuring that the room temperature water replenishment directly participates in the heating cycle and avoiding a sudden drop in temperature caused by the room temperature water directly entering the insulation water chamber. For example, when the water volume in the insulation water chamber is low, the room temperature water can directly enter the heating water chamber for heating before being replenished into the insulation water chamber, shortening the water replenishment energy storage path and improving energy storage efficiency. Furthermore, when the insulation water chamber cannot supply water to the heating water chamber due to insufficient water volume or other reasons (such as a malfunction of the first water supply drive device), the water replenished from the room temperature water tank into the heating water chamber can also be directly transported to the outside of the heat purifier after heating.

[0030] The heat-insulating and heating integrated tank is provided with a circulating water supply pipeline connecting the inlet end of the heat-insulating water chamber and the heating water chamber, and the first water supply drive device is installed on the circulating water supply pipeline.

[0031] The insulated water chamber, circulating water supply pipeline, heating water chamber, heating device, and return pipeline together constitute the internal circulating insulated water circuit.

[0032] In this technical solution, under the action of the first water supply drive device, the insulated water chamber, the circulating water supply pipeline, the heating water chamber, and the return pipeline form an internal circulating insulated water circuit, ensuring that the insulated water chamber has sufficient water volume for insulated circulation. Therefore, this application can achieve two modes of insulated energy storage: First, when the water temperature in the insulated water chamber is lower than the set value and the water volume is sufficient, the first water supply drive device draws water from the insulated water chamber into the heating water chamber for heating, and then returns it to the insulated water chamber through the return pipeline until the water temperature in the insulated water chamber is heated to the set value, thus achieving energy storage; Second, when the water temperature in the insulated water chamber is lower than the set value but the water volume is low, the water replenishment pump starts, and water from the ambient temperature water tank enters the heating water chamber for heating and then returns it to the insulated water chamber through the return pipeline, thus achieving energy storage. In addition, when the insulated water chamber cannot supply water to the heating water chamber, the water supplied from the ambient temperature water tank to the heating water chamber can also be directly supplied externally after heating.

[0033] The top of the ambient temperature water tank is provided with a first exhaust channel, and the top of the heat-insulating heating integrated tank is provided with a second exhaust channel that connects to the heat-insulating water cavity. The end of the second exhaust channel away from the heat-insulating heating integrated tank is connected to the first exhaust channel, and an exhaust valve is also provided on the second exhaust channel.

[0034] The heating inner tank is embedded in the heat-insulating outer tank, and the inner wall of the heat-insulating outer tank and the outer wall of the heating inner tank form the heat-insulating water cavity, and the heating inner tank forms the heating water cavity.

[0035] The water inlet of the heating water chamber is located at the bottom of the heating inner tank. The first water supply drive device includes a circulation pump, which is located at the bottom of the heat-insulating outer tank and connects the heat-insulating outer tank with the heating inner tank.

[0036] The heating inner tank is provided with a water-electricity separation end seat at the top. The heating inner tank is hung on the top of the heat-insulating outer tank through the water-electricity separation end seat, and the water inlet of the heating water chamber penetrates through the bottom of the heat-insulating outer tank, so that the heating inner tank penetrates through the heat-insulating outer tank; the heat-insulating water chamber and the heating water chamber are isolated from each other in the heat-insulating outer tank.

[0037] In this technical solution, the insulated water chamber and the heating water chamber are isolated from each other in the outer insulated tank. This achieves integrated assembly of the insulated water chamber and the heating water chamber while maintaining their independent operation. This allows the integrated insulated and heating tank to more accurately detect the water temperature and control the heating power. The integrated internal circulation insulated water heater of this application has a more efficient heat transfer water path and precise temperature control.

[0038] The water-electricity separation end seat is provided with a wiring port, a lead wire port and a water outlet of the heating water chamber, and the wiring port and the lead wire port are located on the top surface of the water-electricity separation end seat;

[0039] The heating device is arranged vertically from top to bottom inside the heating inner tank, and the wiring terminals of the heating device extend from the wiring port;

[0040] The inner heating tank is also equipped with a temperature control tube, and the wire of the temperature control tube passes through the lead-in port; the temperature control tube is sealed and isolated from the water source of the heating water chamber;

[0041] The water outlet of the heating water chamber is located on the side of the water-electricity separation end seat, and the water outlet of the heating water chamber is water-electrically separated from the wiring port and the lead wire port respectively.

[0042] The heating inner tank is provided with a cylindrical body, which extends longitudinally from top to bottom within the heat-insulating water cavity. The cross-sectional area of ​​the cylindrical body is a circular track shape formed by the combination of relatively straight sides and relatively curved sides. The heating device is placed inside the cylindrical body with a bend.

[0043] The cylindrical body has a flow-disrupting structure on its opposite straight edges, and the flow-disrupting structure includes flow-disrupting ribs or flow-disrupting protrusions.

[0044] In this technical solution, the turbulence structure design can increase the strength of the shell structure, while the turbulence effect created by disturbing the water flow enhances the heat exchange efficiency. Moreover, the presence of the turbulence structure reduces the volume of the internal space of the cylinder, thereby reducing the maximum water capacity that the cylinder can hold and improving the efficiency of the heating device in heating water.

[0045] The heating inner tank is longitudinally arranged on one side of the heat-insulating outer tank, and one side arc edge of the cylinder is close to the longitudinal side wall of the heat-insulating outer tank;

[0046] A temperature probe is also installed on the longitudinal side wall of the insulated outer tank. The temperature probe is located next to the arc edge on the other side of the cylinder and is located on the upper part of the longitudinal side wall of the insulated outer tank.

[0047] In this technical solution, with the turbulence structure on the straight edge, the water flow within the curved edges on both sides is accelerated, quickly carrying away the heat energy from the heating pipe. Therefore, the water temperature in the insulation water cavity outside the curved edge is slightly lower than that in the insulation water cavity outside the straight edge. Placing the temperature probe on the curved edge minimizes the heat radiation effect of the heating device on the water temperature in the insulation outer tank, achieving accurate temperature measurement. Simultaneously, since the water in the insulation water cavity is in a flowing state during insulation, if the temperature probe is placed far from the inner heating tank, the slow heat transfer during the circulating heating process can easily lead to overheating during insulation. The temperature probe would maintain a low detection value, and the heating device would continuously circulate and heat up, eventually causing the mixed temperature of the water in the insulation outer tank to exceed the preset temperature value. Therefore, placing the temperature probe near the curved edge maximizes accurate temperature control and avoids overheating during insulation.

[0048] Due to the adoption of the above technical solution, the technical effects achieved by this application are as follows:

[0049] By setting up an internal circulation insulated water circuit, a constant water temperature is achieved within the insulated heating integrated tank. Furthermore, by integrating the heating device and the insulated water chamber into a single integrated tank, heat energy circulates within the integrated tank, optimizing the piping layout of high-temperature components within the heat purifier, improving heat energy utilization, and enabling the product to achieve Level 1 energy efficiency. Simultaneously, by setting up a normal-temperature water tank to supply water to the insulated water chamber of the insulated heating integrated tank, a stable water source is ensured. The insulated water chamber also contains an embedded heating water chamber, effectively preventing the heating device from dry-burning and extending its lifespan. The insulated heating integrated tank of this application demonstrates excellent performance in extending the lifespan of the heating device, improving heat energy utilization, ensuring stable water levels, and maintaining a constant water temperature.

[0050] In addition, the heating device is located inside the heating water chamber. Heat is transferred to the heating device through the hot water in the heat-insulating water chamber, which avoids the water inside the heating device from exchanging heat with the outside atmosphere and cooling down to room temperature. The water inside the heating device is kept at room temperature, which effectively shortens the preheating waiting time and allows the set temperature to be reached quickly in the initial stage of water output. Attached Figure Description

[0051] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0052] Figure 1 This is a water circuit diagram of the heat purifier provided in Embodiment 1 of this application;

[0053] Figure 2 This is the water circuit diagram of the heat purifier provided in Embodiment 2 of this application;

[0054] Figure 3 This is the water circuit diagram of the heat purifier provided in Embodiment 3 of this application;

[0055] Figure 4 The assembly of the insulated outer tank, heated inner tank, heating device, and circulating pump provided in Embodiment 1 of this application. Figure 1 ;

[0056] Figure 5 The assembly of the insulated outer tank, heated inner tank, heating device, and circulating pump provided in Embodiment 1 of this application. Figure 2 ;

[0057] Figure 6 This is a cross-sectional view of the assembly formed by the insulated outer tank, the heated inner tank, the heating device, and the circulating pump provided in Embodiment 1 of this application.

[0058] Figure 7 This is an assembly drawing of the heating inner tank, heating device, temperature control tube, and temperature control unit of this application;

[0059] Figure 8 This is a cross-sectional view of the assembly formed by the heating inner tank, heating device, temperature control tube, and temperature control unit of this application;

[0060] Figure 9 This is another sectional view of the assembly formed by the heating inner tank, heating device, temperature control tube and temperature control unit of this application;

[0061] Figure 10 This is a schematic diagram of the structure of the cylinder in this application;

[0062] Figure 11 This is another structural schematic diagram of the cylinder body of this application.

[0063] List of components and reference numerals:

[0064] 10. Normal temperature water tank; 11. Insulated outer tank; 12. Heated inner tank; 121. Cylinder body; 1211. Turbulence ribs; 1212. Turbulence protrusions; 13. Water inlet; 14. Booster pump; 15. Filter element; 16. Water inlet solenoid valve; 17. Wastewater solenoid valve; 18. Water inlet valve; 19. Water outlet valve; 20. Water inlet pipe; 21. Return pipe; 22. Circulation pump; 23. Temperature probe; 24. Second exhaust channel; 25. Exhaust valve; 26. Reversing valve; 27. Faucet; 28. First water pump; 29. ​​Second water pump; 30. Heating device; 31. Hot water pump; 32. Water inlet pump; 33. Preheating pipeline; 34. Circulation water supply pipeline; 35. Water circuit board; 351. Water inlet port; 352. Water outlet port; 36. Water-electricity separation terminal; 361. Wiring port; 362. Lead wire port; 363. Water outlet terminal; 37. Temperature control pipe; 371. Temperature control unit. Detailed Implementation

[0065] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0066] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0067] Furthermore, it should be understood in the description of this application that the terms "upper," "lower," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "lateral," and "longitudinal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0068] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0069] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0070] In the embodiments of this application, an integrated internal circulation heat purifier is provided. For ease of explanation and understanding, the following content provided in this application is based on the illustrated product structure. Of course, those skilled in the art will understand that the above structure is only a specific example and illustrative illustration, and does not constitute a specific limitation on the technical solution provided in this application.

[0071] Reference Figures 1 to 11 As shown, the integrated internal circulation heat purifier provided in this application includes an integrated heat-insulating and heating tank, a normal temperature water tank 10, and a filtration unit. The integrated heat-insulating and heating tank is provided with an outer heat-insulating tank 11, which has a heat-insulating water chamber. The outer heat-insulating tank 11 is provided with a heating inner tank 12, which has a heating water chamber. A heating device 30 is provided in the heating water chamber. The integrated heat-insulating and heating tank is also provided with a first water supply drive device that supplies water from the heat-insulating water chamber to the heating water chamber. The normal temperature water tank 10 can replenish water to the heat-insulating water chamber. The filtration unit is used to filter the raw water into pure water and deliver it to the normal temperature water tank 10.

[0072] The integrated insulated heating tank has a hot water outlet and an internal circulation insulated water circuit. The water in the insulated water chamber flows to the heating inner tank 12 under the drive of the first water supply drive device. After being heated by the heating device 30, it flows to the faucet 27 to output heated water. The water in the insulated water chamber flows to the heating inner tank 12 under the drive of the first water supply drive device. After being heated by the heating device 30, it flows back to the insulated water chamber to keep the water in the insulated water chamber at a temperature not lower than the preset temperature.

[0073] In this technical solution, the filtration unit can filter raw water into pure water and store it in a room temperature water tank 10. The room temperature water tank 10 can quickly replenish water to the hot water tank 11. In a preferred embodiment, the filtration unit includes a booster pump 14 and a filter element 15 connected to the booster pump 14. The type and water volume of the filter element 15 are not specifically limited. Figure 1The illustration shows an embodiment with two filter elements 15 connected in series, enabling multi-stage filtration and improving filtration efficiency. Furthermore, the integrated internal circulation insulated water purifier also includes an inlet solenoid valve 16 and a wastewater solenoid valve 17. When the inlet solenoid valve 16 is open, the booster pump 14 can pressurize and pump water from an external water source (such as tap water) into the filter element 15 for filtration. When the wastewater solenoid valve 17 is open, the wastewater produced by the filter element 15 can be discharged to the outside of the equipment through the wastewater solenoid valve 17. The filter element 15 is connected to a normal temperature water tank 10 via a water supply valve 18. When the water supply valve 18 is open, the pure water produced by the filter element 15 can be added to the normal temperature water tank 10.

[0074] In this technical solution, the specific configuration of the first water supply drive device is adjusted according to the water circuit design, and it can be any one of the following embodiments:

[0075] Example 1: As Figure 1 , 4 As shown in Figure 6, in this embodiment, the water purifier uses a method of replenishing water from the ambient temperature water tank 10 to the insulated outer tank 11 to form a top water outlet. The hot water originally stored in the insulated outer tank 11 is squeezed into the heating inner tank 12 by the ambient temperature water, and finally hot water is quickly discharged to the faucet 27.

[0076] The first water supply drive device includes a first water pump 28 for supplying water from the ambient temperature water tank 10 to the insulated outer tank 11 and a circulation pump 22 for pumping water from the insulated outer tank 11 to the heating inner tank 12. In the water outlet mode, which corresponds to the hot water outlet path, the first water pump 28 supplies water from the ambient temperature water tank 10 to the insulated outer tank 11. Since the insulated outer tank 11 is full of water, the hot water originally stored in the insulated outer tank 11 is squeezed into the heating inner tank 12 by the ambient temperature water. After being heated by the heating device 30, it flows to the faucet 27 to output heated water. In the heat preservation mode, which corresponds to the internal circulation heat preservation path, the water in the heat preservation water chamber flows to the heating inner tank 12 under the drive of the circulation pump 22. After being heated by the heating device 30, it flows back to the heat preservation water chamber to keep the water in the heat preservation water chamber at a temperature not lower than the preset temperature.

[0077] Specifically, the insulated outer tank 11 is provided with an inlet pipe 20 and a return pipe 21. The inlet channel is formed inside the inlet pipe 20, with the upper end of the inlet pipe 20 extending towards the top of the insulated outer tank 11 to form the inlet end of the inlet channel. The return channel is formed inside the return pipe 21, with the lower end of the return pipe 21 extending towards the bottom of the insulated outer tank 11 to form the outlet end of the return channel. In this embodiment, the inlet end of the inlet channel is located at the top of the insulated outer tank 11, and the outlet end of the return channel is located at the bottom of the insulated outer tank 11. Through the differentiated design of the high inlet end and the low outlet end, on the one hand, in water with uneven temperature, the hot water with lower density will flow freely upward. The inlet end is close to the top of the insulated outer tank 11, thereby enabling the heating device 3012 to preferentially heat the upper layer of water with higher temperature, improving the water replenishment and heating efficiency. In the water outlet mode, the upper layer of water with higher temperature can be quickly heated to the required temperature, and the heating inner tank 12 can quickly dispense hot water to the faucet 27.

[0078] Furthermore, the circulation pump 22 connects the inlet pipe 20 to the heating inner tank 12. The inlet and outlet of the circulation pump 22 remain open when not powered, allowing water in the insulated outer tank 11 to flow freely towards the heating inner tank 12 through the inlet and outlet when the circulation pump 22 is not powered, or to be pumped into the heating inner tank 12 when the circulation pump 22 is powered. Water is drawn from the insulated outer tank 11 into the heating inner tank 12 by the circulation pump 22, heated by the heating device 30, and then returned to the insulated outer tank 11. This pump-driven circulating heating mode improves heating efficiency and allows the water in the insulated outer tank 11 to quickly reach the preset temperature. The circulating pump 22 adopts a normally open structure (the inlet and outlet of the circulating pump 22 remain unobstructed when the power is off), which allows water to flow naturally when the circulating pump 22 is not powered on, avoiding the problem of the water flow being completely blocked after the power is off in the traditional circulating pump 22. This ensures that the water in the heat preservation outer tank 11 can still enter the heating inner tank 12 through the circulating pump 22 when the circulating pump 22 is not in operation, thus reducing energy consumption.

[0079] Because the water purifier uses a top-water discharge method, where the ambient temperature water tank 10 replenishes water to the insulated outer tank 11, the hot water originally stored in the insulated outer tank 11 is squeezed into the heating inner tank 12 by the ambient temperature water. Therefore, even when the circulating pump 22 is de-energized, the top-water discharge method can still be used to replenish water from the ambient temperature water tank 10 to the insulated outer tank 11. The water in the insulated outer tank 11 is squeezed into the inlet channel, and then heated by the circulating pump 22 before being output. Therefore, the circulating pump 22 is mainly used in the working mode of circulating and heating the water in the insulated outer tank 11 from the heating inner tank 12. When the heating inner tank 12 supplies water to the outside of the equipment, the circulating pump 22 is generally not started.

[0080] In this embodiment, the water inlet end of the water inlet channel and the water replenishment inlet 13 are located at opposite ends of the heat-insulating outer tank 11, that is, the water inlet end of the water inlet channel is located at the top of the heat-insulating outer tank 11, and the water replenishment inlet 13 is located at the bottom of the heat-insulating outer tank 11. With this design, when the ambient temperature water tank 10 replenishes water into the heat-insulating outer tank 11, the ambient temperature water enters from one end of the heat-insulating outer tank 11, and the hot water from the other end of the heat-insulating outer tank 11 enters the water inlet channel, so that the ambient temperature water is away from the high temperature water entering the water inlet channel, so that the water replenished into the heating inner tank 12 is as much as possible the high temperature water in the heat-insulating outer tank 11, thereby improving the heating efficiency.

[0081] Example 2: Figure 2 As shown, the difference between this embodiment and the aforementioned embodiment one is that one end of the water inlet pipe 20 is connected to the heating inner tank 12, and the other end of the water inlet pipe 20 extends toward the bottom of the heat-insulating outer tank 11 to form the water inlet end of the water inlet channel. One end of the return pipe 21 is connected to the heating inner tank 12, and the other end of the return pipe 21 is arranged at the top of the heat-insulating outer tank 11 to form the water outlet end of the return channel. In this embodiment, an alternative arrangement of the inlet pipe 20 and the return pipe 21 is proposed. The inlet end of the inlet channel is located at the bottom of the insulated outer tank 11, and the outlet end of the return channel is located at the top of the insulated outer tank 11. When the heating inner tank 12 circulates and heats the water in the insulated outer tank 11, the low-temperature water at the bottom of the insulated outer tank 11 preferentially enters the heating inner tank 12 for heating, avoiding energy waste caused by repeated heating of the surface high-temperature water. Moreover, when the water level in the heating inner tank 12 is lower than the water level in the insulated outer tank 11, the water in the insulated outer tank 11 can naturally flow towards the heating inner tank 12 without the need for the circulation pump 22 to draw water from the insulated outer tank 11 to the heating inner tank 12. That is, in this embodiment, the first water supply drive device only includes the first water pump 28 for supplying water from the room temperature water tank to the insulated outer tank, and the circulation pump 22 is eliminated, yet normal water output and circulation insulation can still be achieved.

[0082] Example 3: Figure 3 As shown, the outer heat-insulating tank 11 is provided with a hot water outlet 111. The ambient temperature water tank 10 can replenish water into the outer heat-insulating tank 11. The first water supply drive device adopts a hot water pump 31 that supplies water from the inner heat-insulating tank 11 to the inner heating tank 12. That is, the hot water outlet 111 is connected to the inner heating tank 12 through the hot water pump 31. The water in the inner heating tank 12 can be transported to the outside of the heat purifier or flow back into the outer heat-insulating tank 11 so that the water in the outer heat-insulating tank 11 can be maintained at a temperature not lower than the preset temperature.

[0083] When the water temperature in the outer insulated tank 11 is lower than the set value, the outer insulated tank 11, the hot water pump 31, and the inner heating tank 12 form a circulating heating path. The hot water pump 31 draws water from the outer insulated tank 11 into the inner heating tank 12 for heating, and then flows back into the outer insulated tank 11 until the water temperature in the outer insulated tank 11 is heated to above the set value, thus achieving energy storage. This also ensures that the outer insulated tank 11 always has a suitable temperature of hot water when the inner heating tank 12 dispenses water to the faucet 27.

[0084] As a preferred embodiment of this application, the ambient temperature water tank 10 has an ambient temperature water outlet path and a water replenishment path; the water in the ambient temperature water tank 10 flows to the faucet 27 under the drive of the second water supply drive device to output ambient temperature water; the water in the ambient temperature water tank 10 replenishes the heat preservation and heating integrated tank, and maintains the water level in the heat preservation water chamber at a state not lower than the preset water level, the height of the preset water level is not lower than the heating device 30; when the internal circulation heat preservation water path or the ambient temperature water outlet path is in operation, the water replenishment path is suspended.

[0085] Corresponding to the above three embodiments, the second water supply drive device adopts the second water pump 29 to ensure a large flow of room temperature water; in addition, the water level in the heat preservation water chamber is maintained at a level not lower than the preset water level to ensure a large flow of warm water, and the height of the preset water level is not lower than the heating device 30, which effectively prevents the heating device 30 from burning dry and improves the life of the heating device 30.

[0086] Furthermore, in addition to the filter element 15 being connected to the ambient temperature water tank 10 via the water supply valve 18, the filter element 15 can also be connected to the faucet 27 via the water outlet valve 19. The filter element 15 is controlled separately by the water supply valve 18 and the water outlet valve 19, allowing filtered water to be distributed to the ambient temperature water tank 10 as needed or directly supplied to the faucet 27, avoiding frequent start-ups and shutdowns of the filtration unit. Furthermore, with the water outlet valve 19 open and the second water pump 29 operating, the filter element 15 and the ambient temperature water tank 10 can together supply ambient temperature water to the faucet 27, achieving a large flow rate of ambient temperature water supply.

[0087] As a preferred embodiment of this application, such as Figure 3 As shown, the water supply circuit includes a preheating pipe 33 that connects the ambient temperature water tank 10 to the heating water chamber, and a water supply pump 32 is installed on the preheating pipe 33; the heat preservation and heating integrated tank is provided with a return pipe, one end of which is connected to the outlet of the heating water chamber, and the other end of which is connected to the heat preservation water chamber; the water in the ambient temperature water tank 10 flows through the heating water chamber, is heated by the heating device 30, and then enters the heat preservation water chamber through the return pipe to realize the preheating of the water supply source.

[0088] This solution is a specific water replenishment design under the above embodiment three, that is, the ambient temperature water tank 10 indirectly replenishes water to the heat-insulating outer tank 11 through the heating inner tank 12, so that the ambient temperature water tank 10 can pre-fill the water into the heating inner tank 12 for heating and then return it to the heat-insulating outer tank 11 or transport it to the outside of the heat purifier. In this scheme, when the ambient temperature water tank 10 supplies water to the insulated outer tank 11, the water does not directly enter the insulated outer tank 11. The ambient temperature water is directly injected into the heating inner tank 12 through the water replenishment pump 32 and the preheating pipeline 33. The heating device 30 heats the water to the preset temperature and then flows back to the insulated outer tank 11, ensuring that the ambient temperature water replenishment directly participates in the heating cycle and avoiding the sudden drop in temperature caused by the ambient temperature water directly entering the insulated outer tank 11. For example, when the water volume in the insulated outer tank 11 is low, the ambient temperature water can directly enter the heating inner tank 12 for heating and then replenish the insulated outer tank 11, shortening the water replenishment energy storage path and improving energy storage efficiency. Furthermore, when the water volume in the insulated outer tank 11 is insufficient or other reasons (such as the hot water pump 31 malfunction) prevent the insulated outer tank 11 from supplying water to the heating inner tank 12, the water replenished from the ambient temperature water tank 10 into the heating inner tank 12 can also be directly transported to the outside of the heat purifier after heating.

[0089] As a preferred embodiment of this application, the heat-insulating and heating integrated tank is provided with a circulating water supply pipeline 34 that connects the heat-insulating water chamber and the heating water chamber. A first water supply drive device is installed on the circulating water supply pipeline 34. The heat-insulating water chamber, the circulating water supply pipeline 34, the heating water chamber, the heating device 30, and the return pipeline together constitute the internal circulating heat-insulating water circuit.

[0090] In this technical solution, the first water supply drive device, namely the hot water pump 31 in the above embodiment 3, is installed on the circulating water supply pipeline 34, and the circulating water supply pipeline 34 is connected to the preheating pipeline 33. At the same time, the two share a pipeline. The water pump 32 draws water from the ambient temperature water tank 10 and enters the heating inner tank 12 through the shared channel. The water pump 31 draws water from the insulated inner tank 11 and also enters the heating inner tank 12 through the shared channel, reducing redundant pipelines and lowering manufacturing costs. The control system selects to start the water pump 32 and the hot water pump 31. The water pump 32 is used to replenish water in the insulated inner tank 11, and the hot water pump 31 is used for water output and circulating heating, avoiding interference between the two water paths. The control logic is clear and energy-saving.

[0091] As a preferred embodiment of this application, the top of the ambient temperature water tank 10 is provided with a first exhaust channel, and the top of the heat preservation and heating integrated tank is provided with a second exhaust channel 24 that connects to the heat preservation water cavity. The end of the second exhaust channel 24 away from the heat preservation and heating integrated tank is connected to the first exhaust channel, and an exhaust valve 25 is also provided on the second exhaust channel 24.

[0092] In this technical solution, the heat-insulating inner tank is connected to a second exhaust channel 24, which is connected to a normal temperature water tank 10. An exhaust valve 25 is provided in the second exhaust channel 24. In the above embodiment three, since a water pumping and discharging method is used, the exhaust valve 25 can be omitted. In addition, for the above three embodiments, the heating inner tank 12 is connected to a reversing valve 26, which controls the heating inner tank 12 to discharge water to the outside of the heat purifier or to the heat-insulating inner tank.

[0093] Regarding the aforementioned embodiments one and two, when the water purifier is in standby mode, it can control the reversing valve 26 to open the water outlet channel to the outside while simultaneously controlling the vent valve 25 to open the second vent channel 24, allowing the water in the outlet channel to flow back. The second vent channel 24 works in conjunction with the vent valve 25 to control the opening and closing of the second vent channel 24, promptly expelling the gas in the inner insulated tank, preventing air resistance from affecting water circulation, and allowing the gas to be discharged into the ambient temperature water tank 10 and form condensate. Specifically, since the aforementioned embodiments one and two water purifiers use the ambient temperature water tank 10 to replenish water to the inner insulated tank to form a top-water outlet method, in order to allow the hot water originally stored in the inner insulated tank to be squeezed into the heating inner tank 12 by the ambient temperature water tank 10, it is necessary to control the vent valve 25 to close during the replenishment of water from the ambient temperature water tank 10 to the inner insulated tank, so as to prevent the water in the inner insulated tank from overflowing through the second vent channel 24. The reversing valve 26 controls the water outlet direction of the heating inner tank 12 (external water supply or internal return), realizing seamless switching between on-demand water supply and automatic heat preservation mode, and improving user experience. Figure 1 The illustration shows an embodiment where the exhaust valve 25 and the directional valve 26 are integrated, which facilitates control and contributes to a compact structure. Alternatively, the exhaust valve 25 and the directional valve 26 can also be installed independently. After the water purifier finishes discharging water, some hot water will remain in the outlet channel between the heating inner tank 12 and the faucet 27. If hot water is not dispensed again for a long time, this water will cool down to room temperature, affecting the temperature of the next hot water dispensed. Therefore, after the water discharging is completed (when the equipment is in standby mode), the reversing valve 26 is opened to open the outlet channel for water to the outside through the program control of the water purifier. At the same time, the exhaust valve 25 is opened to open the second exhaust channel 24, so that the water that has not been completely emptied downstream of the heating inner tank 12 can return to the heating inner tank 12 along the original path, preventing this water from cooling down and affecting the temperature of the next hot water dispensed. In addition, the outlet channel is generally connected to the faucet 27, which is located at a higher position. Therefore, the water in the outlet channel can flow back under the action of gravity. After this water returns, in order to achieve water pressure balance, the heating inner tank 12 squeezes the water into the insulated inner tank. The insulated inner tank 11 then directs the overflowing water towards the room temperature water tank 10 through the second exhaust channel 24.

[0094] As a preferred embodiment of this application, such as Figure 4-6As shown, the heating inner tank 12 is embedded in the heat-insulating outer tank, and the inner wall of the heat-insulating outer tank and the outer wall of the heating inner tank 12 form a heat-insulating water cavity, and the heating inner tank 12 forms the heating water cavity; the water inlet of the heating water cavity is located at the bottom of the heating inner tank 12, and the first water supply drive device includes a circulation pump 22, which is located at the bottom of the heat-insulating outer tank 11 and connects the heat-insulating outer tank and the heating inner tank 12.

[0095] In this technical solution, the circulating pump 22 is specifically fixed to the bottom of the insulated outer tank 11 via the water circuit board 35. Specifically, the water circuit board 35 is provided with an inlet port 351 that connects to the inlet pipe 20 and an outlet port 352 that connects to the inlet end of the heating water chamber. The inlet and outlet of the circulating pump 22 are respectively connected to the inlet port 351 and the outlet port 352. The inlet and outlet of the circulating pump 22 remain open when there is no power drive, so that the water in the insulated water chamber can flow freely towards the heating water chamber through the inlet and outlet when the circulating pump 22 is not powered, or be pumped into the heating water chamber when the circulating pump 22 is powered.

[0096] In practical implementation, the inlet pipe 20 can be plugged into the inlet port 351 of the water circuit board 35 and sealed with a sealing ring. The inlet end of the heating water chamber can be plugged into the outlet port 352 of the water circuit board 35 and sealed with a sealing ring. The water circuit board 35 can be fixed to the bottom wall of the insulated outer tank 11 with screws to ensure installation reliability and sealing. The inlet and outlet of the circulating pump 22 can also be plugged into the water circuit board 35 and sealed with a sealing ring. In this technical solution, the insulated water chamber is connected to the heating water chamber through the inlet pipe 20, the water circuit board 35, the circulating pump 22, and the inlet end of the heating water chamber, realizing a silicone-free water supply connection and reducing the risk of odor when high-temperature hot water flows through silicone. Furthermore, the circulating pump 22 adopts a normally open structure (the inlet and outlet of the circulating pump 22 remain unobstructed when the power is off), allowing water to flow naturally when the circulating pump 22 is not powered on, avoiding the problem of the water flow being completely blocked after the power is off in traditional circulating pumps 22. This ensures that the water in the insulation tank 11 can still enter the instant heating device through the circulating pump 22 when the circulating pump 22 is not in operation (for example, in the aforementioned water outlet method of the water purifier, the filter unit replenishes the insulation tank 11 with room temperature water when it is full, and the hot water originally stored in the insulation tank 11 is squeezed into the inlet pipe 20. The water in the inlet pipe 20 can continue to enter the instant heating device through the circulating pump 22. Therefore, the circulating pump 22 can still use the top water outlet method to replenish water to the instant heating device and output it after heating when the power is off), reducing energy consumption; when powered on, the circulating pump 22 actively pressurizes, which can quickly draw the circulating pump 22 in the insulation water chamber into the heating water chamber to achieve rapid water replenishment.

[0097] As a preferred embodiment of this application, as shown in 4, 6-9, the top of the heating inner tank 12 is provided with a water-electricity separation end seat 36. The heating inner tank 12 is hung on the top of the heat-insulating outer tank 11 through the water-electricity separation end seat 36, and the water inlet end of the heating water chamber penetrates through the bottom of the heat-insulating outer tank 11, so that the heating inner tank 12 penetrates through the heat-insulating outer tank 11; the heat-insulating water chamber and the heating water chamber are isolated from each other in the heat-insulating outer tank 11.

[0098] In this technical solution, the water-electricity separation end seat 36 is provided with a wiring port 361, a lead wire port 362, and a water outlet 363 for the heating water chamber. The wiring port 361 and the lead wire port 362 are located on the top surface of the water-electricity separation end seat 36. The heating device 30 is arranged vertically from top to bottom inside the heating inner tank 12, and the wiring terminal of the heating device 30 extends from the wiring port 361. The heating inner tank 12 is also provided with a temperature control tube 37, and the wire of the temperature control unit 371 built into the temperature control tube 37 passes through the lead wire port 362. The heating device 30 adopts a U-shaped structure, specifically using one heating tube to rotate to form two symmetrical heating tube segments. The temperature control tube 37 is located between the two heating tube segments formed by the rotation of the heating device 30 to improve the detection accuracy.

[0099] When the heating device 30 is powered on, it can heat the water in the heating chamber. The temperature control unit 371 can measure the water temperature in the heating chamber and control the heating device 30 according to the set temperature value to achieve the purpose of temperature regulation. In a preferred embodiment, the temperature control unit 371 may include a self-resetting temperature controller and a non-self-resetting temperature controller, providing dual protection for the equipment and improving the safety and reliability of the system.

[0100] The temperature control tube 37 is sealed and isolated from the water source of the heating water chamber; the water outlet 363 of the heating water chamber is located on the side of the water-electricity separation terminal seat 36, and the water outlet 363 of the heating water chamber is water-electrically separated from the wiring port 361 and the lead wire port 362 respectively. The water outlet 363 of the heating water chamber is located on the side, and the wiring port 361 and the lead wire port 362 are located on the top surface of the water-electricity separation terminal seat 36 to prevent water from leaking from the water outlet 363 and dripping onto the wiring terminals of the heating device 30 and the wires of the temperature control unit 371.

[0101] As a preferred embodiment of this application, such as Figure 7-11 As shown, the heating inner tank 12 is provided with a cylindrical body 121, which extends longitudinally from top to bottom in the heat preservation water cavity. The cross-sectional area of ​​the cylindrical body 121 is a circular track shape with relatively straight sides and relatively curved sides. The heating device 30 is folded and placed inside the cylindrical body 121. A turbulence structure is provided on the relatively straight sides of the cylindrical body 121. The turbulence structure includes turbulence ribs 1211 or turbulence protrusions 1212.

[0102] In this technical solution, regarding the structure of the cylinder 121, in a preferred embodiment, the cylinder 121 has smooth inner and outer surfaces and a uniform wall thickness, forming a smooth, uniformly thick cylinder 121, which can reduce processing costs and improve pressure resistance. In alternative embodiments, such as... Figure 10 and Figure 11 As shown, the wall of the cylinder 121 is provided with multiple turbulence-inducing structures protruding into the heating water cavity. This turbulence-inducing structure design increases the structural strength of the outer shell, while simultaneously creating turbulence to enhance heat exchange efficiency. Furthermore, the presence of these turbulence-inducing structures reduces the internal volume of the cylinder 121, thereby decreasing the maximum water capacity and improving the heating efficiency of the heating device 30. The specific structure of the turbulence-inducing structures is not limited. Figure 10 The image shows a scheme with a 1212-structure turbulence protrusion. Figure 11 The diagram shows a scheme with a 1211 turbulence rib structure. Of course, the turbulence structure can also be other suitable structures, such as a serpentine structure, a U-shaped structure, etc.

[0103] In a preferred embodiment of this application, the heating inner tank 12 is longitudinally disposed on one side of the heat-insulating outer tank, and one side arc edge of the cylinder 121 is close to the longitudinal side wall of the heat-insulating outer tank; a temperature measuring probe 23 is also installed on the longitudinal side wall of the heat-insulating outer tank 11, the temperature measuring probe 23 is located next to the other side arc edge of the cylinder 121, and the temperature measuring probe 23 is located at the upper part of the longitudinal side wall of the heat-insulating outer tank 11.

[0104] In this technical solution, with the turbulence structure set on the straight edge, the water flow within the curved edges on both sides is accelerated, which can quickly carry away the heat energy from the heating tube. Therefore, the water temperature in the insulation water cavity outside the curved edge is slightly lower than that in the insulation water cavity outside the straight edge. Placing the temperature probe 23 on the curved edge can minimize the heat radiation impact of the heating device 30 on the water temperature of the insulation outer tank 11, achieving accurate temperature measurement. Simultaneously, since the water in the insulation water cavity is in a flowing state during insulation, if the temperature probe 23 is placed far away from the inner heating tank 12, the heat transfer during the circulating heating process is slow, easily leading to overheating during insulation. The temperature probe 23 would maintain a low detection value, and the heating device 30 would continuously circulate and heat up, eventually causing the mixed temperature of the water in the insulation outer tank 11 to exceed the preset temperature value. Therefore, placing the temperature probe 23 near the curved edge can maximize accurate temperature control and avoid overheating during insulation.

[0105] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0106] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0107] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An integrated internal circulation heat preservation type heat purifier, characterized in that, include: The integrated heat-insulating and heating tank includes an outer heat-insulating tank with a heat-insulating water cavity; an inner heating tank with a heating water cavity is provided inside the outer heat-insulating tank; a heating device is provided inside the heating water cavity; the integrated heat-insulating and heating tank also includes a first water supply drive device for supplying water from the heat-insulating water cavity to the heating water cavity. The heat-insulating and heating integrated tank has a hot water outlet and an internal circulation heat-insulating water channel; The internal circulation insulated water circuit is used to ensure that the water in the insulated water chamber flows to the heating inner tank under the drive of the first water supply drive device. After being heated by the heating device, the water flows back to the insulated water chamber to maintain the water in the insulated water chamber at a temperature not lower than the preset temperature.

2. The integrated internal circulation heat preservation air purifier according to claim 1, characterized in that, It also includes a room temperature water tank capable of replenishing water into the insulated water cavity, and the room temperature water tank has a water replenishment channel; The water replenishment circuit replenishes water from the ambient temperature water tank to the heat preservation and heating integrated tank, and maintains the water level in the heat preservation water cavity at a level not lower than a preset level, wherein the preset water level is not lower than the heating device; when the internal circulation heat preservation water circuit or the ambient temperature water outlet water circuit is in operation, the water replenishment circuit is suspended.

3. The integrated internal circulation heat preservation air purifier according to claim 2, characterized in that, The water supply circuit includes a preheating pipeline that connects the ambient temperature water tank to the heating water chamber, and a water supply pump is installed on the preheating pipeline; The heat-insulating heating integrated tank is provided with a return pipe, one end of which is connected to the outlet of the heating water chamber, and the other end of which is connected to the heat-insulating water chamber. The water in the ambient temperature water tank flows through the heating water chamber, is heated by the heating device, and then enters the heat preservation water chamber through the return pipe, thereby preheating the replenishment water source.

4. The integrated internal circulation heat preservation air purifier according to claim 3, characterized in that, The heat-insulating and heating integrated tank is provided with a circulating water supply pipeline connecting the inlet end of the heat-insulating water chamber and the heating water chamber, and the first water supply drive device is installed on the circulating water supply pipeline. The insulated water chamber, circulating water supply pipeline, heating water chamber, heating device, and return pipeline together constitute the internal circulating insulated water circuit.

5. The integrated internal circulation heat preservation air purifier according to claim 2, characterized in that, The top of the ambient temperature water tank is provided with a first exhaust channel, and the top of the heat-insulating heating integrated tank is provided with a second exhaust channel that connects to the heat-insulating water cavity. The end of the second exhaust channel away from the heat-insulating heating integrated tank is connected to the first exhaust channel, and an exhaust valve is also provided on the second exhaust channel.

6. The integrated internal circulation heat preservation air purifier according to any one of claims 1-5, characterized in that, The heating inner tank is embedded in the heat-insulating outer tank, and the inner wall of the heat-insulating outer tank and the outer wall of the heating inner tank form the heat-insulating water cavity, and the heating inner tank forms the heating water cavity. The water inlet of the heating water chamber is located at the bottom of the heating inner tank. The first water supply drive device includes a circulation pump, which is located at the bottom of the heat-insulating outer tank and connects the heat-insulating outer tank with the heating inner tank.

7. The integrated internal circulation heat preservation air purifier according to claim 6, characterized in that, The top of the heating inner tank is provided with a water-electricity separation end seat. The heating inner tank is hung on the top of the heat-insulating outer tank through the water-electricity separation end seat, and the water inlet of the heating water chamber penetrates through the bottom of the heat-insulating outer tank, so that the heating inner tank penetrates through the heat-insulating outer tank. The insulated water chamber and the heated water chamber are isolated from each other by water sources inside the insulated outer tank.

8. The integrated internal circulation heat preservation air purifier according to claim 7, characterized in that, The water-electricity separation end seat is provided with a wiring port, a lead wire port and a water outlet of the heating water chamber, and the wiring port and the lead wire port are located on the top surface of the water-electricity separation end seat; The heating device is arranged vertically from top to bottom inside the heating inner tank, and the wiring terminals of the heating device extend from the wiring port; The inner heating tank is also equipped with a temperature control tube, and the wire of the temperature control tube passes through the lead-in port; the temperature control tube is sealed and isolated from the water source of the heating water chamber; The water outlet of the heating water chamber is located on the side of the water-electricity separation end seat, and the water outlet of the heating water chamber is water-electrically separated from the wiring port and the lead wire port respectively.

9. The integrated internal circulation heat preservation air purifier according to claim 6, characterized in that, The heating inner tank is provided with a cylindrical body, which extends longitudinally from top to bottom within the heat-insulating water cavity. The cross-sectional area of ​​the cylindrical body is a circular track shape formed by the combination of relatively straight sides and relatively curved sides. The heating device is placed inside the cylindrical body with a bend. The cylindrical body has a flow-disrupting structure on its opposite straight edges, and the flow-disrupting structure includes flow-disrupting ribs or flow-disrupting protrusions.

10. The integrated internal circulation heat preservation air purifier according to claim 9, characterized in that, The heating inner tank is longitudinally arranged on one side of the heat-insulating outer tank, and one side arc edge of the cylinder is close to the longitudinal side wall of the heat-insulating outer tank; A temperature probe is also installed on the longitudinal side wall of the insulated outer tank. The temperature probe is located next to the arc edge on the other side of the cylinder and is located on the upper part of the longitudinal side wall of the insulated outer tank.

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