Waterway structure and water purifier

Abstract

The utility model discloses a waterway structure and purifier. The waterway structure includes filter waterway, heating waterway and temperature regulating waterway, the first water outlet of filter waterway is connected with heating waterway, and the second water outlet of filter waterway is connected with temperature regulating waterway, the water outlet of heating waterway and the water outlet of temperature regulating waterway are all connected to mixed cavity, the mixed cavity is used for mixing hot water prepared by heating waterway and normal temperature water in temperature regulating waterway to obtain supply water of preset temperature, the mixed cavity includes shell and impeller, the impeller is arranged in the shell, one end of the shell is provided with first water inlet connected with heating waterway and second water inlet connected with temperature regulating waterway, and the other end of the shell is provided with water outlet. The heating waterway and temperature regulating waterway are mixed by the mixed cavity, and the warm water meeting the water temperature demand is quickly obtained, the mixing efficiency of hot water and temperature regulating water in the mixed cavity is improved, the water temperature distribution after mixing is uniform, and the high temperature water with uneven mixing is avoided.

Description

Technical Field

[0001] This disclosure relates to the field of water system structure technology, and in particular to a water system structure and a water purifier. Background Technology

[0002] In recent years, water purifiers have become an indispensable piece of equipment in homes and offices. Besides providing safe and healthy purified water, the warm water function of water purifiers has gradually gained attention, offering water at a suitable temperature directly for brewing beverages or other daily uses without relying on additional heating equipment. However, in practical applications, the precise control of the warm water temperature from water purifiers is difficult, becoming a significant technical issue affecting user experience.

[0003] Traditional water purifiers typically rely on mixing cold and hot water to generate warm water. However, the mixing chamber design is often quite simple, using only mechanical methods to regulate the ratio of cold and hot water. Due to the lack of a precise temperature control mechanism, the temperature of the mixed water is easily affected by various factors, including the initial temperatures of the cold and hot water, changes in flow rate, fluctuations in ambient temperature, and the design of the water circuit structure. This simple mixing method cannot monitor and adjust the outlet water temperature in real time, making it difficult for users to obtain a stable supply of warm water.

[0004] Furthermore, the structural design of traditional mixing chambers fails to adequately consider the dynamic characteristics of water flow, such as turbulence and heat transfer efficiency in fluid mechanics. This can lead to insufficient mixing of cold and hot water within the mixing chamber, resulting in localized temperature unevenness. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defect of unstable water temperature in the mixed water output of existing water purifiers, and to provide a water circuit structure and a water purifier.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution:

[0007] Firstly, a water circuit structure is provided, including a filtration water circuit, a heating water circuit, and a temperature regulating water circuit;

[0008] The first outlet of the filtration water circuit is connected to the heating water circuit, and the second outlet of the filtration water circuit is connected to the temperature regulating water circuit.

[0009] The outlet of the heating water circuit and the outlet of the temperature regulating water circuit are both connected to the mixing chamber;

[0010] The mixing chamber is used to mix the hot water prepared by the heating water circuit with the room temperature water in the temperature regulating water circuit to obtain supply water at a preset temperature.

[0011] The mixing chamber includes a shell and an impeller. The impeller is disposed inside the shell. One end of the shell is provided with a first water inlet connected to the heating water circuit and a second water inlet connected to the temperature regulating water circuit. The other end of the shell is provided with a water outlet.

[0012] The hot water and the room temperature water flow into the outer casing to drive the impeller to rotate.

[0013] Optionally, the housing includes a mixing section and a pressurizing section;

[0014] The impeller is disposed inside the mixing section, and the first water inlet and the second water inlet are disposed on the mixing section;

[0015] One end of the pressurizing unit is connected to the mixing unit, and the other end of the pressurizing unit is provided with the water outlet;

[0016] The inner diameter of the pressurizing section gradually decreases from the end face connected to the mixing section to the outlet.

[0017] Optionally, an impeller support is provided on the end face where the mixing section connects to the pressurizing section, and the impeller is movably connected to the impeller support.

[0018] Optionally, the mixing section has a columnar structure, and the pressurizing section has a conical structure.

[0019] Optionally, the pressurizing section has a conical structure, and a guide groove is provided on the inner side of the pressurizing section.

[0020] Optionally, the guide channel extends from the end face where the mixing section connects to the pressurizing section to the outlet; and / or,

[0021] The guide groove is a spiral.

[0022] Optionally, the water filtration path includes a nanofiltration membrane filter element, which is used to prepare purified water with minerals.

[0023] Optionally, it also includes a return water path, wherein the temperature-regulating water path includes a water valve assembly;

[0024] The inlet of the return water path is connected to the water valve assembly, and the outlet of the return water path is connected to the inlet of the nanofiltration membrane filter element.

[0025] Optionally, a sterilizer is provided at the outlet of the filtration water path.

[0026] In a second aspect, a water purifier is provided, including the water circuit structure as described in the first aspect.

[0027] The positive and progressive effects of this utility model are as follows: by mixing the heating water circuit and the temperature-regulating water circuit in the mixing chamber, warm water that meets the water temperature requirements can be obtained quickly. Furthermore, by utilizing the impeller structure in the mixing chamber, the mixing efficiency of hot water and temperature-regulating water in the mixing chamber is improved, so that the temperature distribution of the mixed water is uniform and the high-temperature water with uneven mixing is avoided. Attached Figure Description

[0028] Figure 1 A schematic diagram of a waterway structure provided in an exemplary embodiment of this disclosure;

[0029] Figure 2 This is a schematic diagram of the mixing cavity in a waterway structure provided as an exemplary embodiment of the present disclosure;

[0030] Figure 3 A cross-sectional structural diagram of a mixing cavity in a waterway structure provided as an exemplary embodiment of this disclosure;

[0031] Figure 4 A schematic diagram of the impeller structure of the mixing chamber in a waterway structure provided as an exemplary embodiment of this disclosure;

[0032] Explanation of reference numerals in the attached figures

[0033] Filtration system 100, nanofiltration membrane filter element 110, pre-filter element 120, post-filter element 130, micro pump 140, sterilizer 150;

[0034] Heating water circuit 200, heating water tank 210, first water pump 220, second temperature sensor 230;

[0035] Temperature regulating water circuit 300, second water pump 310, water valve assembly 320, third temperature sensor 330;

[0036] Mixing chamber 400, fourth temperature sensor 410, mixing section 420, pressurizing section 430, impeller 440, impeller support 450, guide channel 460. Detailed Implementation

[0037] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0038] The prefixes such as "first" and "second" used in this disclosure are merely for distinguishing different descriptive objects and do not limit the position, order, priority, quantity, or content of the described objects. The use of ordinal numbers and other prefixes used to distinguish descriptive objects in this disclosure does not constitute a limitation on the described objects. The description of the described objects is given in the claims or the context of the embodiments, and should not be construed as an unnecessary limitation. Furthermore, in the description of this embodiment, unless otherwise stated, "multiple" means two or more.

[0039] Example 1

[0040] This embodiment provides a water circuit structure, including a filtration water circuit 100, a heating water circuit 200, and a temperature regulating water circuit 300;

[0041] The first outlet of the filtration water circuit 100 is connected to the heating water circuit 200, and the second outlet of the filtration water circuit 100 is connected to the temperature regulating water circuit 300.

[0042] Specifically, the water filtration path 100 is used to connect to the water supply source to filter out large particulate matter, microorganisms, chemical pollutants, heavy metals, odors, pigments and / or bacteria and viruses from the water source, so as to provide purified water for the subsequent water path; a first temperature sensor (not shown) is installed near the outlet of the water filtration path 100 to collect the purified water temperature.

[0043] In one specific embodiment, the filtration water circuit 100 is divided into several parallel water outlets according to the water supply demand, wherein the first water outlet is connected to the heating water circuit 200, the second water outlet is connected to the temperature regulating water circuit 300, and the third water outlet is connected to the normal temperature water circuit.

[0044] The outlet of the heating water circuit 200 and the outlet of the temperature regulating water circuit 300 are both connected to the mixing chamber 400.

[0045] Specifically, the heating water circuit 200 is used to heat the purified water and maintain it above a preset high temperature threshold, which can be 95°C. A second temperature sensor 230 and / or a first flow sensor are set in the heating water circuit 200 to collect the hot water temperature and / or hot water flow. The heating water circuit 200 can be equipped with a heating water tank 210 or a heating element of corresponding capacity according to the hot water demand; and / or, a first water pump 220 is configured according to the length of the heating water circuit 200 and the hot water supply pressure demand. The outlet of the heating water circuit 200 is connected to the mixing chamber 400 to provide hot water for mixing.

[0046] The temperature-regulating water path 300 is used to supply room-temperature water to the mixing chamber 400 to mix with the hot water in the heating water path 200 according to the water temperature requirement, so that the water outlet of the mixing chamber 400 meets the water temperature requirement. A third temperature sensor 330 and / or a second flow sensor are installed in the temperature-regulating water path 300 to collect the temperature of the first room-temperature water flowing into the mixing chamber 400 for mixing and / or the flow rate of the temperature-regulating water; and / or, a second water pump 310 is configured according to the length of the temperature-regulating water path 300 and the temperature-regulating water pressure requirement, and the flow rate of the temperature-regulating water is adjusted according to the water temperature requirement, the hot water temperature, the hot water flow rate and the first room-temperature water temperature, so that the water level after mixing meets the water temperature requirement.

[0047] The mixing chamber 400 is used to mix the hot water prepared by the heating water circuit 200 with the room temperature water in the temperature regulating water circuit 300 to obtain supply water at a preset temperature.

[0048] The mixing chamber 400 includes a shell and an impeller 440. The impeller 440 is disposed inside the shell. One end of the shell is provided with a first water inlet connected to the heating water circuit 200 and a second water inlet connected to the temperature regulating water circuit 300. The other end of the shell is provided with a water outlet.

[0049] The hot water and the room temperature water flow into the outer casing to drive the impeller 440 to rotate.

[0050] Specifically, the mixing chamber 400 receives hot water and temperature-controlled water, resulting in a mixed water temperature that meets the user's water temperature requirements. The first and second inlets can be adjacently mounted on the outer casing. A fourth temperature sensor 410 and / or a third flow sensor are installed at the outlet of the mixing chamber 400 to collect the outlet water temperature and / or flow rate. The mixing chamber 400 is driven by the water pressure and gravity of the incoming hot and temperature-controlled water to rotate the impeller 440. The impeller 440 agitates the mixed water, accelerating the mixing process and ensuring a uniform temperature distribution. This prevents unevenly mixed, high-temperature water.

[0051] In this solution, the hot water and the temperature-regulating water are mixed in the mixing chamber 400 through the heating water circuit 200 and the temperature-regulating water circuit 300 to quickly obtain warm water that meets the water temperature requirements. The impeller 440 structure in the mixing chamber 400 is used to improve the mixing efficiency of hot water and temperature-regulating water in the mixing chamber 400, so that the temperature distribution of the mixed water is uniform and the high temperature water with uneven mixing is avoided.

[0052] In one possible implementation, the housing includes a mixing section 420 and a pressurizing section 430;

[0053] The impeller 440 is provided inside the mixing section 420, and the first water inlet and the second water inlet are provided on the mixing section 420;

[0054] One end of the pressurization unit 430 is connected to the mixing unit 420, and the other end of the pressurization unit 430 is provided with the water outlet;

[0055] The inner diameter of the pressurizing section 430 gradually decreases from the end face connected to the mixing section 420 to the outlet.

[0056] In this design, the outer casing comprises two parts: a mixing section 420 and a pressurizing section 430, optimizing the functional areas. The mixing section 420 is used to mix hot water and temperature-adjustable water. The placement of the inlet ensures that hot and room-temperature water immediately participate in the mixing process upon entry, improving the initial mixing effect. The design of the pressurizing section 430 not only facilitates smooth water flow but also increases water pressure through a gradually narrowing inner diameter structure. This pressurization effect helps improve the water output speed, meeting the user's convenience in various application scenarios.

[0057] In this design, the inner diameter of the pressurization section 430 gradually decreases, forming a structure similar to a Venturi tube. When water flows through this narrowed section, the flow velocity increases and the pressure decreases, creating a negative pressure effect. This further promotes the dispersion of incompletely mixed microfluidic particles in the mixing section 420, ensuring the uniformity of the final effluent temperature. Simultaneously, the narrowed design increases the effluent pressure through Bernoulli's principle, reducing the impact of flow fluctuations caused by valve adjustments or pipe resistance on the mixing ratio. The accelerating flow channel of the pressurization section 430 prevents the mixed water from re-stratifying at the outlet due to a decrease in velocity. Traditional designs may cause the hot and cold water to separate again due to a sudden drop in outlet velocity, while the narrowed structure maintains a higher flow velocity, ensuring a stable temperature field at the outlet.

[0058] As one possible implementation, an impeller support 450 is provided on the end face where the mixing section 420 is connected to the pressurizing section 430, and the impeller 440 is movably connected to the impeller support 450.

[0059] In this design, the impeller support 450 provides axial and radial support for the impeller 440, preventing it from shifting due to water flow impact or its own weight during high-speed rotation. This avoids the axial misalignment of the impeller 440 during rotation, which can lead to increased water flow resistance, noise, or uneven mixing, as is common in traditional designs where the impeller 440 lacks a fixed support point. The introduction of the support ensures that the impeller 440's axis is strictly aligned with the water flow direction, guaranteeing a stable rotation trajectory.

[0060] As one possible implementation, the mixing section 420 has a columnar structure and the pressurizing section 430 has a conical structure.

[0061] In this design, the mixing section 420 is designed as a columnar structure with a regular internal space, providing a more stable mixing environment for hot and room temperature water. Within the columnar structure, the water flow path is more uniform, avoiding turbulence and incomplete mixing problems caused by irregular spaces. This results in a more uniform mixing of hot and room temperature water, ultimately outputting a more stable water temperature close to the target value. The pressurization section 430 is designed as a conical structure, whose gradually decreasing inner diameter effectively compresses and guides the water flow. Following the "Venturi effect" in fluid mechanics, where fluid velocity increases and pressure rises as it passes through a gradually narrowing space, the conical structure significantly improves the outlet water velocity and pressure, ensuring smooth water supply. The transition between the columnar mixing section 420 and the conical pressurization section 430 is natural and smooth, effectively guiding the water flow from a mixing state to a pressurized state, reducing turbulence and disturbances within the mixing chamber 400.

[0062] As one possible implementation, the booster section 430 has a conical structure, and a guide groove 460 is provided on the inner side of the booster section 430.

[0063] In this design, the guide channel 460 effectively guides the water flow along a predetermined path, reducing irregular flow within the pressurization section 430. This smoothly guides the mixed water to the outlet, minimizing energy loss due to turbulence and improving the kinetic energy conversion efficiency of the water flow. The guide channel 460, with its grooved or raised structure, can create localized high-pressure and low-pressure zones, generating a pumping effect that draws in poorly mixed hot and cold water particles into the high-speed flow zone, further breaking up the temperature interface.

[0064] As one possible implementation, the guide channel 460 extends from the end face where the mixing section 420 connects to the pressurizing section 430 to the outlet; and / or,

[0065] The guide groove 460 is a spiral.

[0066] In this design, the design of the guide channel 460 extending to the outlet ensures continuous guidance of the water flow throughout the pressurization section 430, minimizing obstruction and turbulence in the flow path. This continuity guarantees a smooth transition of the water flow, improves flow efficiency, and ensures that the water reaches the outlet with minimal energy loss. The guide channel 460 employs an axially reduced helical structure. The helical shape of the guide channel 460 imparts rotational kinetic energy to the water flow, creating a turbine effect during pressurization. This enhances the pressure and velocity of the water flow and further optimizes the concentration of the flow through centrifugal force, achieving a stronger pressurization effect at the outlet.

[0067] In one possible manner, the water filtration path 100 includes a nanofiltration membrane filter element 110 for preparing purified water with minerals.

[0068] In this solution, the water filtration path 100 includes a pre-filter 120, a post-filter 130, and a nanofiltration membrane filter 110, forming a system to remove large particulate matter, microorganisms, chemical pollutants, heavy metals, odors, pigments, and / or bacteria and viruses from the water source. The nanofiltration membrane filter 110 typically has a filtration precision between 0.001 microns and 0.01 microns, effectively removing most harmful substances and pollutants from the water while allowing some beneficial minerals to pass through. This retains mineral components beneficial to human health, improving the nutritional value of the water. Furthermore, minerals significantly affect the taste of water; by retaining an appropriate amount of minerals through the nanofiltration membrane filter 110, the purified water tastes more natural and refreshing.

[0069] As one possible approach, a return water path is also included, wherein the temperature-regulating water path 300 includes a water valve assembly 320;

[0070] The inlet end of the return water path is connected to the water valve assembly 320, and the outlet end of the return water path is connected to the inlet end of the nanofiltration membrane filter element 110.

[0071] In this design, the nanofiltration membrane cartridge 110 requires relatively low pressure for its filtration process. A micro-pump is installed at the inlet of the nanofiltration membrane cartridge 110. The water valve assembly 320 in the temperature-regulating water circuit 300 at the inlet of the return water circuit is connected to the return water circuit. A portion of the water flows back to the inlet of the micro-pump through the water valve assembly 320. The inlet flow rate of the micro-pump is adjusted through the return water circuit. While maintaining the same head, the increased flow rate in the return water circuit reduces the outlet pressure of the micro-pump, thus meeting the pre-membrane pressure requirement of the nanofiltration membrane cartridge 110. Furthermore, a return control valve and a return check valve are installed on the return water circuit to achieve precise control of the return flow rate.

[0072] As one possible approach, a sterilizer 150 is provided at the outlet of the filtration water path 100.

[0073] In this solution, the sterilizer 150 is an ultraviolet sterilizer 150, which uses ultraviolet light to destroy the DNA of microorganisms, maintaining the minerals retained by the nanofiltration membrane without changing the water quality. In one embodiment, the irradiation intensity of the ultraviolet sterilizer 150 is adaptively matched with the outflow rate of the filtered water path 100 to ensure that the ultraviolet light can still achieve the sterilization dose even at high flow rates.

[0074] As an alternative approach, the water circuit structure also includes a room temperature water circuit, the inlet of which is connected to the outlet of the filter water circuit 100, and the room temperature water circuit is used to supply filtered room temperature water.

[0075] The water circuit structure provided in this embodiment uses the heating water circuit 200 and the temperature-regulating water circuit 300 to mix in the mixing chamber 400, quickly obtaining warm water that meets the water temperature requirements. The impeller 440 structure in the mixing chamber 400 is used to improve the mixing efficiency of hot water and temperature-regulating water in the mixing chamber 400, so that the temperature distribution of the mixed water is uniform and the high-temperature water with uneven mixing is avoided.

[0076] Example 2

[0077] This example provides a water purifier, including the water circuit structure of Embodiment 1.

[0078] In this solution, the water purifier includes a faucet, wherein the hot water end of the faucet is connected to the outlet end of the mixing chamber 400 in the water circuit structure, and the cold water end of the faucet is connected to the outlet end of the room temperature water circuit in the water circuit structure.

[0079] The heating water (200) and temperature-regulating water (300) are mixed in a mixing chamber (400) to quickly obtain warm water that meets the required water temperature. The impeller (440) in the mixing chamber (400) improves the mixing efficiency of the hot and temperature-regulating water, resulting in a uniform temperature distribution and preventing unevenly mixed, high-temperature water. Simultaneously, the structural design of the mixing chamber (400) enhances the precise control of hot and warm water temperatures and ensures adequate outlet pressure for both.

[0080] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A waterway structure, characterized in that, This includes a water filtration system, a water heating system, and a temperature control system. The first outlet of the filtration water circuit is connected to the heating water circuit, and the second outlet of the filtration water circuit is connected to the temperature regulating water circuit. The outlet of the heating water circuit and the outlet of the temperature regulating water circuit are both connected to the mixing chamber; The mixing chamber is used to mix the hot water prepared by the heating water circuit with the room temperature water in the temperature regulating water circuit to obtain supply water at a preset temperature. The mixing chamber includes a shell and an impeller. The impeller is disposed inside the shell. One end of the shell is provided with a first water inlet connected to the heating water circuit and a second water inlet connected to the temperature regulating water circuit. The other end of the shell is provided with a water outlet. The hot water and the room temperature water flow into the outer casing to drive the impeller to rotate.

2. The waterway structure according to claim 1, characterized in that, The outer casing includes a mixing section and a pressurizing section; The impeller is disposed inside the mixing section, and the first water inlet and the second water inlet are disposed on the mixing section; One end of the pressurizing unit is connected to the mixing unit, and the other end of the pressurizing unit is provided with the water outlet; The inner diameter of the pressurizing section gradually decreases from the end face connected to the mixing section to the outlet.

3. The waterway structure according to claim 2, characterized in that, An impeller support is provided on the end face where the mixing section connects to the pressurizing section, and the impeller is movably connected to the impeller support.

4. The waterway structure according to claim 2, characterized in that, The mixing section has a columnar structure, and the pressurizing section has a conical structure.

5. The waterway structure according to claim 4, characterized in that, The pressurization section has a conical structure, and a guide groove is provided on the inner side of the pressurization section.

6. The waterway structure according to claim 5, characterized in that, The guide channel extends from the end face where the mixing section connects to the pressurizing section to the outlet; and / or The guide groove is a spiral.

7. The waterway structure according to any one of claims 1 to 6, characterized in that, The filtration path includes a nanofiltration membrane filter element, which is used to prepare purified water with minerals.

8. The waterway structure according to claim 7, characterized in that, It also includes a return water path, wherein the temperature-regulating water path includes a water valve assembly; The inlet of the return water path is connected to the water valve assembly, and the outlet of the return water path is connected to the inlet of the nanofiltration membrane filter element.

9. The waterway structure according to claim 7, characterized in that, A sterilizer is installed at the outlet of the filtration water path.

10. A water purifier, characterized in that, The waterway structure includes any one of claims 1 to 9.

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