Backflow type waterway structure and water purifier
By using a reflux water circuit structure and a vacuum heat storage tank design, the problems of heat loss and increased costs in traditional water purifiers are solved, achieving stability and efficiency in outlet water temperature.
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
The hot water tank design of traditional water purifiers leads to heat loss and the problem of insufficient hot water output. At the same time, setting up multiple heating modules will increase costs or power consumption.
It adopts a reflux water circuit structure, including an inlet pipe, a heating module, a heat storage module, a reflux pipe, a reflux valve, and an outlet pipe. It utilizes a vacuum heat storage tank and a separately installed heating module to draw the heat storage medium into the reflux pipe for reheating through the reflux pipe and reflux valve to ensure the outlet water temperature.
It reduces heat exchange within the vacuum storage tank, optimizes heat storage performance, reduces heat loss from the heating module, ensures the outlet water temperature meets requirements, and avoids the situation of mixed hot and cold water.
Smart Images
Figure CN224062454U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of water purifier equipment technology, and in particular to a reflux 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 makes it easy for heat to be lost from the heating plate, leading to a drop in water temperature in the tank and insufficient hot water output. Adding multiple heating modules would increase costs or lead to excessive power consumption. Utility Model Content
[0004] To address the aforementioned technical problems, this application provides a reflux water circuit structure and a water purifier.
[0005] In a first aspect, embodiments of this application disclose a reflux water circuit structure, including an inlet pipe, a heating module, a heat storage module, a reflux pipe, a reflux valve, and an outlet pipe;
[0006] The inlet of the heating module is connected to the outlet of the inlet pipe, and the outlet of the heating module is connected to the inlet of the heat storage module; the outlet of the heat storage module is connected to the inlet of the outlet pipe; the inlet of the return pipe is connected to the inlet of the outlet pipe, and the outlet of the return pipe is connected to the inlet of the heating module; a return valve is installed at the inlet of the return pipe and is used to draw the heat storage medium in the vacuum heat storage tank into the return 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 water outlet of the vacuum heat storage tank and the water inlet of the return pipeline 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 reflux valve and is used to control the reflux valve 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 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 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 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 heating module, and is used to control the 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 located between the outlet of the vacuum storage tank and the inlet of the return pipeline, and is used to extract 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 thermal storage medium in the outlet pipeline back into the vacuum thermal storage tank.
[0016] In some possible embodiments, a water outlet valve is also included, which is disposed on the water outlet pipe.
[0017] In some possible embodiments, a check valve and an inlet valve are also included; both the check valve and the inlet valve are located on the inlet pipe, with the check valve near the inlet end of the inlet pipe and the inlet valve near the outlet end of the inlet pipe.
[0018] 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.
[0019] 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.
[0020] Secondly, embodiments of this application disclose a water purifier, including any of the above-mentioned reflux water circuit structures.
[0021] The technical solution provided in this application has the following technical effects:
[0022] The reflux water circuit structure of this application embodiment includes an inlet pipe, a heating module, a heat storage module, a reflux pipe, a reflux valve, and an outlet pipe; the inlet end of the heating module is connected to the outlet end of the inlet pipe, and the outlet end of the heating module is connected to the inlet end of the heat storage module; the outlet end of the heat storage module is connected to the inlet end of the outlet pipe; the inlet end of the reflux pipe is connected to the inlet end of the outlet pipe, and the outlet end of the reflux pipe is connected to the inlet end of the heating module; the reflux valve is installed at the inlet end of the reflux pipe and is used to draw the heat storage medium in the vacuum heat storage tank into the reflux pipe; wherein, the heat storage module includes a vacuum heat storage tank, and the inside of the vacuum heat storage tank is in a vacuum state. In this embodiment, by using a vacuum heat storage tank, the heat exchange between the heat storage medium and the air in the vacuum heat storage tank is reduced, thus optimizing the heat storage effect of the heat storage module. At the same time, the scheme of separating the heating module and the heat storage module reduces the heat loss at the heating module. Furthermore, a return pipeline and a return valve are set up to draw the heat storage medium in the vacuum heat storage tank into the return pipeline, and then reheat it through the heating module, ensuring that the outlet water temperature meets the requirements. Attached Figure Description
[0023] 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.
[0024] Figure 1 This is a schematic diagram of a recirculation waterway structure provided in an embodiment of this application;
[0025] Figure 2 This is a schematic diagram of a reflux water circuit structure provided in an embodiment of this application.
[0026] Figure label:
[0027] 1. Inlet pipe; 11. Check valve; 12. Inlet valve; 2. Heating module; 3. Heat storage module; 31. Vacuum heat storage tank; 32. High water level probe; 33. Vacuum exhaust valve; 4. Return pipe; 5. Return valve; 6. Outlet pipe; 61. Outlet valve; 7. First temperature sensor; 8. Second temperature sensor; 9. Third temperature sensor; 10. Water pump. Detailed Implementation
[0028] 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.
[0029] 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.
[0030] 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.
[0031] 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.
[0032] This application provides a reflux waterway structure. Figure 1 This is a schematic diagram of a recirculation waterway structure provided in an embodiment of this application, such as... Figure 1 As shown, the reflux water circuit structure includes an inlet pipe 1, a heating module 2, a heat storage module 3, a reflux pipe 4, a reflux valve 5, and an outlet pipe 6.
[0033] like Figure 1 As shown, the water inlet of heating module 2 is connected to the water outlet of water inlet pipe 1, and the water outlet of heating module 2 is connected to the water inlet of heat storage module 3. The water outlet of heat storage module 3 is connected to the water inlet of water outlet pipe 6, the water inlet of return pipe 4 is connected to the water inlet of water outlet pipe 6, and the water outlet of return pipe 4 is connected to the water inlet of heating module 2. Return valve 5 is installed at the water inlet of return pipe 4 and is used to draw the heat storage medium in vacuum heat storage tank 31 into return pipe 4.
[0034] When the heat storage medium, such as water, enters the inlet pipe 1, it is heated by the heating module 2 and then enters the heat storage module 3. It then flows out through the outlet pipe 6 for user use. If the hot water in the heat storage module 3 has been stored for too long and its temperature drops, the return valve 5 draws the water out of the heat storage module 3 back through the return pipe 4 to the heating module 2. The heating module 2 then reheats the water before it enters the heat storage module 3 for heat preservation. Through this setup, the return pipe 4 and the return valve 5 draw the heat storage medium from the heat storage module 3 back into the return pipe 4, where it is then reheated by the heating module 2, ensuring that the outlet water temperature meets the requirements. Simultaneously, the mixing of hot water at different temperatures within the heat storage module 3 prevents the generation of mixed hot and cold water.
[0035] 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 2 and the heat storage module 3 reduces heat loss at the heating module 2, further ensuring the outlet water temperature.
[0036] Figure 2 This is a schematic diagram of a reflux water circuit structure provided in an embodiment of this application, as shown below. Figure 2 As shown, in some possible embodiments, the reflux water circuit structure also includes a first temperature detection element 7 and a control module.
[0037] In some possible embodiments, the first temperature detection element 7 is disposed between the water outlet of the vacuum heat storage tank 31 and the water inlet of the return pipe 4, and is used to detect the first temperature data of the heat storage medium in the vacuum heat storage tank 31. Specifically, the first temperature detection element 7 is configured as a temperature sensor, which can detect the temperature of the water flowing through the water outlet of the vacuum heat storage tank 31 in real time.
[0038] In this embodiment, the first temperature sensor 7 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 reflux valve 5 and is used to control the reflux valve 5 based on the first temperature data.
[0039] 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 reflux valve 5 can be opened to transport the water to the heating module 2 through the reflux pipeline 4.
[0040] In some possible embodiments, the reflux water circuit structure also includes a second temperature sensor 8 and a third temperature sensor 9.
[0041] like Figure 2As shown, the second temperature sensor 8 is installed between the water inlet pipe 1 and the heating module 2 to detect the second temperature data of the heat storage medium in the water inlet pipe 1. The third temperature sensor 9 is installed between the heating module 2 and the vacuum heat storage tank 31 to detect the third temperature data of the heat storage medium after it has been heated by the heating module 2.
[0042] In this embodiment, both the second temperature sensor 8 and the third temperature sensor 9 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 heating module 2, and is used to control the heating module 2 based on the second temperature data and the third temperature data.
[0043] In one possible embodiment, the power of the 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.
[0044] 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 heating module 2 can be adjusted to the first power.
[0045] 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 heating module 2 can be adjusted to the second power, which is greater than the first power.
[0046] When heating the return hot water, the hot water may be 96 degrees Celsius. Similarly, when heating the water to 100 degrees Celsius, the power of heating module 2 can be adjusted to the third power, which is less than the first power.
[0047] In some possible embodiments, the reflux water circuit structure also includes a water pump 10. The water pump 10 is located between the outlet end of the vacuum heat storage tank 31 and the inlet end of the reflux pipeline 4, and is used to extract the heat storage medium in the vacuum heat storage tank 31 and transport the heat storage medium to the outlet pipeline 6 for user use.
[0048] In this embodiment, the water pump 10 is specifically configured as a bidirectional water pump 10. The bidirectional water pump 10 can transport the heat storage medium in the vacuum heat storage tank 31 to the outlet water pipe 6, and can also pump the heat storage medium in the outlet water pipe 6 back to the vacuum heat storage tank 31.
[0049] In one possible embodiment, a fourth temperature sensor is also provided on the outlet pipe 6 to detect the fourth temperature data of the heat storage medium in the outlet pipe 6. The fourth temperature sensor is communicatively connected to the control module and sends the fourth temperature data to the control module. The control module is communicatively connected to the bidirectional water pump 10 and is used to control the bidirectional water pump 10 based on the fourth temperature data.
[0050] In this embodiment, when the heat storage medium in the outlet pipe 6 is lower than the set temperature, the heat storage medium in the outlet pipe 6 can be pumped back to the vacuum heat storage tank 31 to avoid the user receiving a section of cold water first. For example, when the water temperature in the outlet pipe 6 is lower than 85 degrees Celsius, the bidirectional water pump 10 is started to pump the water in the outlet pipe 6 back to the vacuum heat storage tank 31 for mixing and heat preservation.
[0051] In some possible embodiments, the reflux water circuit structure also includes an outlet valve 61, which is specifically configured as a solenoid valve and is installed on the outlet pipe 6 to transport the heat storage medium in the outlet pipe 6 to the outlet.
[0052] In some possible embodiments, the reflux water circuit structure also includes a one-way valve 11 and an inlet valve 12.
[0053] like Figure 2 As shown, both the one-way valve 11 and the inlet valve 12 are installed on the inlet pipe 1, with the one-way valve 11 located near the inlet end of the inlet pipe 1 and the inlet valve 12 located near the outlet end of the inlet pipe 1. The inlet valve 12 is also configured as a solenoid valve, used to transport the heat storage medium from the inlet to the inlet pipe 1, and the one-way valve 11 is used to ensure that the water in the inlet pipe 1 flows in one direction to prevent backflow.
[0054] 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 12 to stop water intake when the vacuum thermal storage tank 31 is full.
[0055] 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.
[0056] This application embodiment also provides a water purifier, which includes the above-mentioned reflux water circuit structure and a water purification pipeline structure, wherein the water purification pipeline structure is used to purify the incoming water, and the reflux water circuit structure is used to heat the purified water.
[0057] By incorporating a reflux water circuit structure and employing a vacuum heat storage tank in the water purifier, the heat exchange between the heat storage medium and the air within the vacuum heat storage tank is reduced, thus optimizing the heat storage effect of the heat storage module. Furthermore, the separate installation of the heating module and the heat storage module minimizes heat loss at the heating module. A reflux pipe and reflux valve are installed to draw the heat storage medium from the vacuum heat storage tank into the reflux pipe, where it is then reheated by the heating module, ensuring that the outlet water temperature meets the requirements.
[0058] 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.
[0059] 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.
[0060] 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.
[0061] 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 return flow waterway structure characterized by comprising: The device comprises a water inlet pipeline (1), a heating module (2), a heat storage module (3), a backflow pipeline (4), a backflow valve (5) and a water outlet pipeline (6); wherein the heat storage module (3) comprises a vacuum heat storage tank (31), and the inside of the vacuum heat storage tank (31) is in a vacuum state. The water inlet end of the heating module (2) is connected with the water outlet end of the water inlet pipeline (1), the water outlet end of the heating module (2) is connected with the water inlet end of the heat storage module (3), the water outlet end of the heat storage module (3) is connected with the water inlet end of the water outlet pipeline (6), the water inlet end of the backflow pipeline (4) is connected with the water inlet end of the water outlet pipeline (6), and the water outlet end of the backflow pipeline (4) is connected with the water inlet end of the heating module (2); the backflow valve (5) is arranged at the water inlet end of the backflow pipeline (4) and used for pumping the heat storage medium in the vacuum heat storage tank (31) into the backflow pipeline (4).
2. The return flow waterway structure according to claim 1, wherein Further comprising a first temperature detection member (7) and a control module; The first temperature detection member (7) is arranged between the water outlet end of the vacuum heat storage tank (31) and the water inlet end of the backflow pipeline (4) and used for detecting first temperature data of the heat storage medium in the vacuum heat storage tank (31); The first temperature detection member (7) is in communication connection with the control module and used for sending the first temperature data to the control module; and the control module is in communication connection with the backflow valve (5) and used for controlling the backflow valve (5) based on the first temperature data.
3. The return flow waterway structure according to claim 2, wherein Further comprising a second temperature detection member (8) and a third temperature detection member (9); The second temperature detection member (8) is arranged between the water inlet pipeline (1) and the heating module (2) and used for detecting second temperature data of the heat storage medium in the water inlet pipeline (1); and the third temperature detection member (9) is arranged between the heating module (2) and the vacuum heat storage tank (31) and used for detecting third temperature data of the heat storage medium after being heated by the heating module (2); The second temperature detection member (8) and the third temperature detection member (9) are in communication connection with the control module and 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 heating module (2) and used for controlling the heating module (2) based on the second temperature data and the third temperature data.
4. The return flow waterway structure according to claim 3, wherein Further comprising a water pumping pump (10); the water pumping pump (10) is arranged between the water outlet end of the vacuum heat storage tank (31) and the water inlet end of the backflow pipeline (4) and used for pumping the heat storage medium in the vacuum heat storage tank (31).
5. The return flow waterway structure according to claim 4, wherein The water pumping pump (10) is configured as a bidirectional water pumping pump (10) and used for pumping the heat storage medium in the water outlet pipeline (6) back to the vacuum heat storage tank (31).
6. The return flow waterway structure according to claim 1, wherein Further comprising a water outlet valve (61) arranged on the water outlet pipeline (6).
7. The return flow waterway structure according to claim 1, wherein The water inlet pipeline (1) is further provided with a one-way valve (11) and a water inlet valve (12), wherein the one-way valve (11) is arranged near the water inlet end of the water inlet pipeline (1), and the water inlet valve (12) is arranged near the water outlet end of the water inlet pipeline (1).
8. The return flow waterway structure according to claim 1, wherein The heat storage module (3) further comprises a high water level probe (32) arranged at the top of the vacuum heat storage tank (31) and used for detecting the water level state of the heat storage medium in the vacuum heat storage tank (31).
9. The return flow waterway structure according to claim 8, wherein The heat storage module (3) further comprises a vacuum exhaust valve (33) arranged at the top of the vacuum heat storage tank (31) and used for balancing the air pressure state of the vacuum heat storage tank (31).
10. A water purifier characterized by comprising: The water inlet pipeline (1) is further provided with a one-way valve (11) and a water inlet valve (12), wherein the one-way valve (11) is arranged near the water inlet end of the water inlet pipeline (1), and the water inlet valve (12) is arranged near the water outlet end of the water inlet pipeline (1).