Double-heating waterway structure and water purifier

By adopting a dual heating water circuit structure and a vacuum heat storage tank in the water purifier, the problems of heat loss and bacterial growth in the hot water tank design are solved, achieving stability and safety of the outlet water temperature.

CN224062453UActive Publication Date: 2026-03-31NINGBO FOTILE KITCHEN WARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The hot water tank design of traditional water purifiers leads to heat loss, lower water temperature, and bacterial growth.

Method used

It adopts a dual-heating water circuit structure, including an inlet pipe, a first heating module, a vacuum heat storage tank, and a second heating module. By setting heating modules before and after the heat storage module, it ensures that the outlet water temperature meets the requirements, and the vacuum heat storage tank reduces heat loss.

Benefits of technology

It effectively maintains the outlet water temperature, prevents bacterial growth, reduces heat loss, and ensures a stable outlet water temperature.

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Abstract

The utility model relates to a double-heating water path structure and a water purifier. The double-heating water path structure comprises a water inlet pipeline, a first heating module, a heat storage module, a second heating module and a water outlet pipeline, the water inlet end of the first heating module is connected with the water outlet end of the water inlet pipeline, and the water outlet end of the first heating module is connected with the water inlet end of the heat storage module; the water inlet end of the second heating module is connected with the water outlet end of the heat storage module, and the water outlet end of the second heating module is connected with the water inlet end of the water outlet pipeline; the heat storage module comprises a vacuum heat storage tank, and the interior of the vacuum heat storage tank is in a vacuum state. According to the embodiment, the heating modules are arranged in front of and behind the heat storage module respectively, it is guaranteed that the outlet water temperature meets the requirement, bacterium breeding caused by water temperature reduction is avoided, meanwhile, the heating modules and the heat storage module are arranged separately, the vacuum heat storage tank is arranged, heat exchange between an internal heat storage medium and air is reduced, heat loss is reduced, and the service life of the water heater is prolonged. And the outlet water temperature is ensured.
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Description

Technical Field

[0001] This application relates to the field of water purifier equipment technology, and in particular to a dual heating water circuit structure and a water purifier. Background Technology

[0002] A water purifier is a household appliance that integrates filtration and heating functions, primarily used to provide safe and healthy drinking water. It removes impurities, bacteria, and harmful substances from water through multiple filtration technologies, and also has a heating function to directly provide hot water for daily drinking, tea brewing, coffee making, and other needs.

[0003] Traditional water purifiers mostly use a hot water tank, with a heating plate at the bottom. Cold water enters the tank, is first boiled by the heating plate, and then stored as hot water. When water is needed, the water is drawn out of the tank. Currently, most water purifiers on the market use an integrated design for the hot water tank and heating plate. This allows heat to easily dissipate from the heating plate, leading to a drop in water temperature in the tank and insufficiently hot water output. Furthermore, long-term use may also lead to bacterial growth. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application provides a dual-heating water circuit structure and a water purifier.

[0005] In a first aspect, embodiments of this application disclose a dual-heating water circuit structure, including an inlet pipe, a first heating module, a heat storage module, a second heating module, and an outlet pipe;

[0006] The inlet of the first heating module is connected to the outlet of the inlet pipe, and the outlet of the first heating module is connected to the inlet of the heat storage module; the inlet of the second heating module is connected to the outlet of the heat storage module, and the outlet of the second heating module is connected to the inlet of the outlet pipe.

[0007] The thermal storage module includes a vacuum thermal storage tank, the inside of which is in a vacuum state.

[0008] In some possible embodiments, a first temperature sensing element and a control module are also included;

[0009] The first temperature detection device is installed between the vacuum heat storage tank and the second heating module to detect the first temperature data of the heat storage medium in the vacuum heat storage tank.

[0010] The first temperature sensor is communicatively connected to the control module and is used to send first temperature data to the control module; the control module is communicatively connected to the second heating module and is used to control the second heating module based on the first temperature data.

[0011] In some possible embodiments, a second temperature sensing element and a third temperature sensing element are also included;

[0012] The second temperature sensor is installed between the water inlet pipe and the first heating module to detect the second temperature data of the heat storage medium in the water inlet pipe; the third temperature sensor is installed between the first heating module and the vacuum heat storage tank to detect the third temperature data of the heat storage medium after it has been heated by the first heating module.

[0013] Both the second and third temperature sensors are communicatively connected to the control module, and are used to send second and third temperature data to the control module respectively; the control module is communicatively connected to the first heating module, and is used to control the first heating module based on the second and third temperature data.

[0014] In some possible embodiments, a water pump is also included; the water pump is disposed between the vacuum storage tank and the second heating module for extracting the heat storage medium in the vacuum storage tank.

[0015] In some possible embodiments, the pump is configured as a bidirectional pump for pumping the heat storage medium in the second heating module and the outlet water line back into the vacuum heat storage tank.

[0016] In some possible embodiments, a fourth temperature sensing element is also included;

[0017] The fourth temperature detection device is installed between the second heating module and the water outlet pipe to detect the fourth temperature data of the heat storage medium after it has been heated by the second heating module.

[0018] The fourth temperature sensor is connected to the control module and is used to send fourth temperature data to the control module; the control module is connected to the second heating module and is used to control the second heating module based on the fourth temperature data.

[0019] In some possible embodiments, an inlet valve is provided on the inlet pipe, which is used to draw the heat storage medium into the inlet pipe and the first heating module.

[0020] In some possible embodiments, the thermal storage module also includes a high water level probe; the high water level probe is located at the top of the vacuum thermal storage tank and is used to detect the water level status of the thermal storage medium in the vacuum thermal storage tank.

[0021] In some possible embodiments, the thermal storage module also includes a vacuum exhaust valve; the vacuum exhaust valve is located at the top of the vacuum thermal storage tank and is used to balance the gas pressure state of the vacuum thermal storage tank.

[0022] Secondly, embodiments of this application disclose a water purifier, including any of the above-mentioned dual heating water circuit structures.

[0023] The technical solution provided in this application has the following technical effects:

[0024] The dual-heating water circuit structure of this application embodiment includes an inlet pipe, a first heating module, a heat storage module, a second heating module, and an outlet pipe. The inlet end of the first heating module is connected to the outlet end of the inlet pipe, and the outlet end of the first heating module is connected to the inlet end of the heat storage module. The inlet end of the second heating module is connected to the outlet end of the heat storage module, and the outlet end of the second heating module is connected to the inlet end of the outlet pipe. The heat storage module includes a vacuum heat storage tank, the interior of which is in a vacuum state. In this application embodiment, by setting a heating module before and after the heat storage module, the hot water is reheated upon outlet, ensuring the outlet water temperature meets requirements and preventing bacterial growth caused by water temperature drop. Furthermore, separating the heating module and the heat storage module reduces heat loss at the heating module. Replacing a conventional hot water tank with a vacuum heat storage tank reduces heat exchange between the internal heat storage medium and the air, further reducing heat loss and ensuring the outlet water temperature. Attached Figure Description

[0025] To more clearly illustrate the technical solutions and advantages in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a dual-heating water circuit structure provided in an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of a dual-heating water circuit structure provided in an embodiment of this application.

[0028] Figure label:

[0029] 1. Water inlet pipe; 11. Water inlet valve; 2. First heating module; 3. Heat storage module; 31. Vacuum heat storage tank; 32. High water level probe; 33. Vacuum exhaust valve; 4. Second heating module; 5. Water outlet pipe; 6. First temperature detection element; 7. Second temperature detection element; 8. Third temperature detection element; 9. Water pump; 10. Fourth temperature detection element. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0031] It should be noted that the term "an embodiment" or "embodiment" in the specification of the embodiments of this application refers to a specific feature, structure, or characteristic that can be included in at least one implementation of this application. It should be understood that in the specification, claims, and accompanying drawings of the embodiments of this application, the terms "upper," "lower," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, in the description of this embodiment, unless otherwise stated, "a plurality of" means two or more. Additionally, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, or product that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0032] It should be understood that when a device or component is referred to as being "on," "adjacent to," or "connected to" other devices or components, it may be directly on, adjacent to, or connected to other devices or components, or there may be intervening devices or components. Conversely, when a device or component is referred to as being "directly on," "directly adjacent to," or "directly connected to" other devices or components, there are no intervening devices or components. It should be understood that although the terms first, second, third, etc., may be used to describe various components, areas, layers, and / or parts, these components, areas, layers, and / or parts should not be limited by these terms. These terms are only used to distinguish one component, area, layer, or part from another component, area, layer, or part. Therefore, without departing from the teachings of this application, the first component, area, layer, or part discussed below may be referred to as the second component, area, layer, or part. And the discussion of the second component, area, layer, or part does not imply that the first component, area, layer, or part necessarily exists in this application.

[0033] To make the objectives, technical solutions, and advantages disclosed in the embodiments of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the embodiments of this application and are not intended to limit the embodiments of this application.

[0034] This application provides a dual-heating water circuit structure. Figure 1 This is a schematic diagram of a dual-heating water circuit structure provided in an embodiment of this application, as shown below. Figure 1 As shown, the dual-heating water circuit structure includes an inlet pipe 1, a first heating module 2, a heat storage module 3, a second heating module 4, and an outlet pipe 5.

[0035] like Figure 1 As shown, the water inlet of the first heating module 2 is connected to the water outlet of the water inlet pipe 1, and the water outlet of the first heating module 2 is connected to the water inlet of the heat storage module 3. The water inlet of the second heating module 4 is connected to the water outlet of the heat storage module 3, and the water outlet of the second heating module 4 is connected to the water inlet of the water outlet pipe 5.

[0036] When the heat storage medium, such as water, enters the inlet pipe 1, it is heated by the first heating module 2 and then enters the heat storage module 3. The water flowing out of the heat storage module 3 is reheated by the second heating module 4 and then flows out through the outlet pipe 5 for user use. By setting a heating module before and after the heat storage module 3, the hot water is reheated when it is discharged, ensuring that the outlet water temperature meets the requirements and preventing bacterial growth in the pipes caused by a drop in water temperature.

[0037] The heat storage module 3 includes a vacuum heat storage tank 31, the interior of which is in a vacuum state. By using a vacuum heat storage tank 31, the heat exchange between the heat storage medium and the air inside the vacuum heat storage tank 31 is reduced, thus optimizing the heat storage effect of the heat storage module 3. At the same time, the separate arrangement of the heating module and the heat storage module 3 reduces heat loss at the heating module, further ensuring the outlet water temperature.

[0038] Figure 2 This is a schematic diagram of a dual-heating water circuit structure provided in an embodiment of this application, as shown below. Figure 2 As shown, in some possible embodiments, the dual-heating water circuit structure also includes a first temperature detection element 6 and a control module.

[0039] In some possible embodiments, a first temperature detection element 6 is disposed between the vacuum heat storage tank 31 and the second heating module 4, for detecting the first temperature data of the heat storage medium in the vacuum heat storage tank 31. Specifically, the first temperature detection element 6 is configured as a temperature sensor, which can detect the temperature of the water flowing through the outlet of the vacuum heat storage tank 31 in real time.

[0040] In this embodiment, the first temperature sensor 6 is communicatively connected to the control module and is used to send first temperature data to the control module. The control module is communicatively connected to the second heating module 4 and is used to control the second heating module 4 based on the first temperature data.

[0041] When the temperature of the hot water flowing out of the vacuum heat storage tank 31 meets the requirements, it can flow out directly without reheating. When the water temperature does not meet the requirements, the hot water can be reheated by the second heating module 4 before flowing out to ensure that the water temperature meets the requirements.

[0042] Specifically, the temperature threshold can be set to 3 degrees Celsius below the boiling point, for example, 97 degrees Celsius. When the temperature sensor detects that the temperature of the hot water flowing out of the vacuum heat storage tank 31 is lower than 97 degrees Celsius, the second heating module 4 can be turned on to reheat the hot water.

[0043] In this embodiment, the first heating module 2 is the main heating module with a dual heating water circuit structure, and the second heating module 4 is the auxiliary heating module with a dual heating water circuit structure. Therefore, the power and heating effect of the first heating module 2 are greater than those of the second heating module 4.

[0044] In some possible embodiments, the dual-heating water circuit structure further includes a second temperature detection element 7 and a third temperature detection element 8.

[0045] like Figure 2As shown, the second temperature sensor 7 is disposed between the water inlet pipe 1 and the first heating module 2, and is used to detect the second temperature data of the heat storage medium in the water inlet pipe 1. The third temperature sensor 8 is disposed between the first heating module 2 and the vacuum heat storage tank 31, and is used to detect the third temperature data of the heat storage medium after it has been heated by the first heating module 2.

[0046] In this embodiment, both the second temperature sensor 7 and the third temperature sensor 8 are communicatively connected to the control module, and are used to send second temperature data and third temperature data to the control module, respectively. The control module is communicatively connected to the first heating module 2, and is used to control the first heating module 2 based on the second temperature data and the third temperature data.

[0047] In one possible embodiment, the power of the first heating module 2 can be controlled by the temperature difference between the second temperature data and the third temperature data to ensure that the temperature of the hot water entering the vacuum storage tank 31 remains constant.

[0048] For example, in summer, the inlet water temperature is high, averaging above 25 degrees Celsius, and the water needs to be heated to 100 degrees Celsius. At this time, the power of the first heating module 2 can be adjusted to the first power.

[0049] In winter, the inlet water temperature is low, averaging around 5 degrees Celsius. The water needs to be heated to 100 degrees Celsius. At this time, the power of the first heating module 2 can be adjusted to the second power, which is greater than the first power.

[0050] In some possible embodiments, the dual-heating water circuit structure also includes a water pump 9. The water pump 9 is disposed between the vacuum heat storage tank 31 and the second heating module 4, and is used to extract the heat storage medium in the vacuum heat storage tank 31.

[0051] In this embodiment, the water pump 9 is configured as a bidirectional water pump 9. The bidirectional water pump 9 can transport the heat storage medium in the vacuum heat storage tank 31 to the water outlet pipe 5, and can also pump the heat storage medium in the water outlet pipe 5 back to the vacuum heat storage tank 31, so as to achieve zero cold water output.

[0052] In some possible embodiments, the dual-heating water circuit structure further includes a fourth temperature detection element 10. The fourth temperature detection element 10 is disposed between the second heating module 4 and the outlet water pipe 5, and is used to detect the fourth temperature data of the heat storage medium after it has been heated by the second heating module 4.

[0053] In this embodiment, the fourth temperature sensor 10 is communicatively connected to the control module and is used to send fourth temperature data to the control module. The control module is communicatively connected to the second heating module 4 and is used to control the second heating module 4 based on the fourth temperature data.

[0054] With the above settings, the power of the second heating module 4 can also be controlled in real time using the fourth temperature data. For example, if the water temperature after secondary heating by the second heating module 4 is still below 97 degrees Celsius, the power of the second heating module 4 will be increased to raise the outlet water temperature.

[0055] In some possible embodiments, the dual heating water circuit structure also includes an outlet valve, specifically configured as a solenoid valve, which is installed on the outlet pipe 5 to deliver hot water in the outlet pipe 5 to the outlet.

[0056] In some possible embodiments, an inlet valve 11 is provided on the inlet pipe 1, and the inlet valve 11 is also configured as a solenoid valve for drawing the heat storage medium into the inlet pipe 1 and the first heating module 2.

[0057] In some possible embodiments, the thermal storage module 3 further includes a high water level probe 32. The high water level probe 32 is disposed at the top of the vacuum thermal storage tank 31 and is used to detect the water level of the thermal storage medium in the vacuum thermal storage tank 31. The high water level probe 32 is communicatively connected to the control module and sends the water level status to the control module. Based on the water level status, the control module controls the water inlet valve 11 to stop water intake when the vacuum thermal storage tank 31 is full.

[0058] In some possible embodiments, the thermal storage module 3 also includes a vacuum exhaust valve 33. The vacuum exhaust valve 33 is located at the top of the vacuum thermal storage tank 31 and is used to balance the air pressure in the vacuum thermal storage tank 31. The vacuum exhaust valve 33 can be opened when water enters and exits the vacuum thermal storage tank 31, making the water entry and exit smoother.

[0059] This application embodiment also provides a water purifier, which includes the above-mentioned dual heating water circuit structure and a water purification pipeline structure, wherein the water purification pipeline structure is used to purify the incoming water, and the dual heating water circuit structure is used to heat the purified water.

[0060] By incorporating a dual-heating water circuit structure in the water purifier, with a heating module before and after the heat storage module, the hot water is reheated upon dispensing, ensuring the outlet water temperature meets requirements and preventing bacterial growth caused by lower water temperatures. Furthermore, separating the heating and heat storage modules reduces heat loss at the heating module. Replacing the conventional hot water tank with a vacuum heat storage tank reduces heat exchange between the internal heat storage medium and the air, further minimizing heat loss and ensuring the outlet water temperature.

[0061] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, specific embodiments have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0062] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0063] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0064] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A double heating water path structure, characterized by, The water inlet pipeline (1), the first heating module (2), the heat storage module (3), the second heating module (4) and the water outlet pipeline (5) are included. The water inlet end of the first heating module (2) is connected with the water outlet end of the water inlet pipeline (1), and the water outlet end of the first heating module (2) is connected with the water inlet end of the heat storage module (3); the water inlet end of the second heating module (4) is connected with the water outlet end of the heat storage module (3), and the water outlet end of the second heating module (4) is connected with the water inlet end of the water outlet pipeline (5). The heat storage module (3) includes a vacuum heat storage tank (31), and the inside of the vacuum heat storage tank (31) is in a vacuum state.

2. The dual heating water path structure according to claim 1, wherein The first temperature detection member (6) and the control module are further included. The first temperature detection member (6) is arranged between the vacuum heat storage tank (31) and the second heating module (4) and is used for detecting first temperature data of a heat storage medium in the vacuum heat storage tank (31). The first temperature detection member (6) is in communication connection with the control module and is used for sending the first temperature data to the control module; and the control module is in communication connection with the second heating module (4) and is used for controlling the second heating module (4) based on the first temperature data.

3. The dual heating water path structure according to claim 2, wherein The second temperature detection member (7) and the third temperature detection member (8) are further included. The second temperature detection member (7) is arranged between the water inlet pipeline (1) and the first heating module (2) and is used for detecting second temperature data of the heat storage medium in the water inlet pipeline (1); and the third temperature detection member (8) is arranged between the first heating module (2) and the vacuum heat storage tank (31) and is used for detecting third temperature data of the heat storage medium after being heated by the first heating module (2). The second temperature detection member (7) and the third temperature detection member (8) are in communication connection with the control module and are used for sending the second temperature data and the third temperature data to the control module respectively; and the control module is in communication connection with the first heating module (2) and is used for controlling the first heating module (2) based on the second temperature data and the third temperature data.

4. The dual heating water path structure according to claim 3, wherein The water pump (9) is further included and is arranged between the vacuum heat storage tank (31) and the second heating module (4) and is used for pumping out the heat storage medium in the vacuum heat storage tank (31).

5. The dual heating water path structure according to claim 4, wherein The water pump (9) is configured as a bidirectional water pump (9) and is used for pumping the heat storage medium in the second heating module (4) and the water outlet pipeline (5) back to the vacuum heat storage tank (31).

6. The dual heating water path structure according to claim 5, wherein The fourth temperature detection member (10) is further included. The fourth temperature detection member (10) is arranged between the second heating module (4) and the water outlet pipeline (5) and is used for detecting fourth temperature data of the heat storage medium after being heated by the second heating module (4). The fourth temperature detecting member (10) is in communication connection with the control module, and is configured to send the fourth temperature data to the control module; and the control module is in communication connection with the second heating module (4), and is configured to control the second heating module (4) based on the fourth temperature data.

7. The dual heating water path structure according to claim 1, wherein The water inlet pipeline (1) is provided with a water inlet valve (11), and the water inlet valve (11) is configured to draw the heat storage medium into the water inlet pipeline (1) and the first heating module (2).

8. The dual heating water path structure according to claim 1, wherein The heat storage module (3) further comprises a high water level probe (32), and the high water level probe (32) is arranged at the top of the vacuum heat storage tank (31) and is configured to detect the water level state of the heat storage medium in the vacuum heat storage tank (31).

9. The dual heating water path structure according to claim 8, wherein The heat storage module (3) further comprises a vacuum exhaust valve (33), and the vacuum exhaust valve (33) is arranged at the top of the vacuum heat storage tank (31) and is configured to balance the air pressure state of the vacuum heat storage tank (31).

10. A water purifier characterized by comprising: A double-heating water pipeline structure comprising the double-heating water pipeline structure according to any one of claims 1-9.