Micro-nano bubble liquid generating system and water heater

Abstract

The application discloses a kind of micro-nano bubble liquid generation system and water heater, wherein micro-nano bubble liquid generation system includes dissolved air device, pump body, first valve body, second valve body, third valve body arranged in first pipeline, fourth valve body arranged in second pipeline, mixed cavity is formed in dissolved air device, and inlet pipe, liquid inlet pipe and liquid outlet pipe are formed on dissolved air device and communicated with mixed cavity.The pump body, first valve body and second valve body are arranged on the liquid inlet pipe, and the pump body is arranged between the first valve body and the second valve body;The first liquid inlet end of the first pipeline is connected between the first valve body and the pump body, and the first liquid outlet end of the first pipeline is connected to the liquid outlet pipe.The second liquid inlet end of the second pipeline is connected between the pump body and the second valve body, and the second liquid outlet end of the second pipeline is connected to the liquid outlet pipe and located on the liquid outlet side of the first liquid outlet end.The micro-nano bubble liquid generation system of the embodiment of the present application can realize efficient switching of dissolved air liquid water and ordinary water, and the system has high operating efficiency.

Description

[0001] Cross-reference to related applications

[0002] This application is based on and claims priority to Chinese Patent Application No. 202120289186.2, filed on February 1, 2021, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This invention belongs to the field of household appliance technology, specifically a micro-nano bubble liquid generation system and a water heater. Background Technology

[0004] Micro-nano bubble water refers to water containing a large number of tiny bubbles with a diameter of 0.1–50 μm. Micro-nano bubble water is currently widely used in industrial water treatment and water pollution control, and is now increasingly being applied in daily life and beauty products.

[0005] Due to their small size, micro- and nano-bubbles exhibit characteristics distinct from ordinary bubbles, such as longer existence time, higher interfacial zeta potential, and higher mass transfer efficiency. Utilizing these properties, micro- and nano-bubble water can be produced for the degradation of pesticide residues in fruits and vegetables, and can also kill bacteria and some viruses. It also has some effect on antibiotics and hormones in certain meats.

[0006] Currently, based on the bubble generation mechanism, micro-nano bubble water generation technology can be divided into: pressurized dissolved air method, gas-induced method, and electrolytic extraction method. Although the bubbles formed by traditional pressurized dissolved air method are small, they require a booster pump for pressurization, resulting in a large system size, significant operating noise and vibration, which is not conducive to application in small equipment. Furthermore, it is costly and has a low cost-performance ratio; the series operation and control are also more complex, resulting in a poor user experience.

[0007] In some cases, during the generation of micro-nano bubble water, the water terminal often fails to dispense water during the process of gas dissolving in the liquid to form dissolved gas, causing users to wait for a period of time before they can use the micro-nano bubble water. Furthermore, when using micro-nano bubble water, the output may be interrupted when the amount of micro-nano bubble water is insufficient, affecting the user experience. The air intake process usually relies on an air pump, and the air pump control procedure is complex. In addition, the control system for switching between micro-nano bubble water output and regular water output at the water terminal is difficult to use, making it difficult to meet the flexible water usage needs of the water terminal. Summary of the Invention

[0008] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a micro-nano bubble liquid generation system. This system has multiple functions, enabling efficient gas inlet and dissolution, and achieving both dissolved gas liquid output and ordinary water output, thus solving the technical problems of the single water usage mode and complex switching in the prior art.

[0009] The present invention also aims to provide a water heater having the above-mentioned micro-nano bubble liquid generation system.

[0010] According to an embodiment of the present invention, a micro / nano bubble liquid generation system includes: a gas dissolving device having a mixing chamber formed therein, and an inlet pipe, a liquid inlet pipe, and a liquid outlet pipe connected to the mixing chamber on the gas dissolving device; a pump body disposed on the liquid inlet pipe; a first valve body and a second valve body disposed on the liquid inlet pipe, wherein the first valve body is disposed on the liquid inlet side of the pump body, and the second valve body is disposed on the liquid outlet side of the pump body; a first pipeline and a third valve body disposed on the first pipeline, wherein the first liquid inlet end of the first pipeline is connected between the first valve body and the pump body, and the first liquid outlet end of the first pipeline is connected to the liquid outlet pipe; a second pipeline and a fourth valve body disposed on the second pipeline, wherein the second liquid inlet end of the second pipeline is connected between the pump body and the second valve body, and the second liquid outlet end of the second pipeline is connected to the liquid outlet pipe and located on the liquid outlet side of the first liquid outlet end.

[0011] According to an embodiment of the present invention, the micro / nano bubble liquid generation system can achieve different liquid inlet and outlet forms by changing the state of different valve bodies. Combined with the operation of the pump, it can achieve flexible and varied outlet forms. When the first and second pipelines are connected to the inlet and outlet pipes respectively, under the action of the pump, the liquid in the mixing chamber can be discharged sequentially from the outlet pipe, the first pipeline, the inlet pipe, the second pipeline, and the outlet pipe, thereby reducing the pressure in the mixing chamber and allowing air to enter the mixing chamber through the air inlet pipe. When the inlet pipe is connected to the mixing chamber, liquid can be rapidly introduced into the mixing chamber, thereby rapidly increasing the liquid level and pressurizing the mixing chamber, causing the gas entering the mixing chamber to quickly dissolve in the liquid, achieving dissolved gas in the mixing chamber. When the inlet pipe is connected to the second pipeline, ordinary liquid without bubbles can be rapidly discharged. This achieves efficient switching between dissolved gas liquid outlet and ordinary water outlet, and can also achieve simultaneous dissolved gas liquid outlet and ordinary water outlet. The pump can not only act as a discharge pump but also as a booster pump for the system, improving the system's operating efficiency.

[0012] According to some embodiments of the present invention, the micro / nano bubble liquid generation system further includes a first one-way valve, which is disposed on the liquid outlet pipe between the first liquid outlet end and the second liquid outlet end, and the first one-way valve enables the liquid outlet pipe to be unidirectionally open.

[0013] According to some embodiments of the micro / nano bubble liquid generation system of the present invention, the mixing chamber has an air intake mode and a dissolved gas mode, and the mode is switched by changing the operating state of the first valve body, the second valve body, the third valve body, the fourth valve body and the pump body.

[0014] Optionally, when the first valve body and the second valve body are closed, the third valve body and the fourth valve body are open, and the pump body is running, the mixing chamber switches to the air intake mode.

[0015] Optionally, the mixing chamber switches to dissolved gas mode at least when the first valve body and the second valve body are open and the third valve body is closed.

[0016] Advantageously, in the dissolved gas mode, the pump body is turned on.

[0017] Advantageously, in the dissolved gas mode, the fourth valve body is opened.

[0018] According to some embodiments of the micro / nano bubble liquid generation system of the present invention, a second one-way valve is further provided on the air inlet pipe to allow gas to flow unidirectionally from the air inlet pipe toward the mixing chamber.

[0019] According to a further embodiment of the present invention, the micro / nano bubble liquid generation system further includes an air pump, which is disposed on the air inlet pipe and on the air inlet side of the second one-way valve, and the air pump can inflate the mixing chamber.

[0020] The micro / nano bubble liquid generation system according to some embodiments of the present invention further includes a water flow sensor disposed on the liquid inlet pipe to detect the liquid inlet flow rate of the liquid inlet pipe.

[0021] Advantageously, the micro / nano bubble liquid generation system also includes a controller that, upon receiving an air intake signal, controls the mixing chamber to enter an air intake mode.

[0022] Optionally, the micro / nano bubble liquid generation system further includes a liquid level sensor, which is communicatively connected to the controller. The liquid level sensor is used to detect the liquid level height in the mixing chamber, and the controller receives the signal of the liquid level height. When the controller determines that the liquid level height meets a preset condition, it controls the mixing chamber to enter the air intake mode or the dissolved gas mode.

[0023] According to some embodiments of the present invention, the micro-nano bubble liquid generation system further includes a micro-nano bubble generator connected to the liquid outlet pipe.

[0024] Optionally, the micro-nano bubble liquid generation system further includes a water outlet component connected to the end of the liquid outlet pipe, and the micro-nano bubble generator is disposed inside the water outlet component; the water outlet component is a shower head or a faucet.

[0025] Optionally, when the second valve body and the third valve body are closed, and the pump body, the first valve body and the fourth valve body are open, the water outlet forms a normal water outlet.

[0026] A water heater according to an embodiment of the present invention includes: a heating device; and a micro / nano bubble liquid generation system of the foregoing embodiments, wherein the heating device is disposed on the liquid inlet pipe and between the pump body and the second liquid inlet end.

[0027] According to an embodiment of the present invention, the pump body is located on the inlet side of the heating device. Hot water does not need to pass through the pump body, thus protecting it from the impact of high-temperature liquid and extending its service life and reliability. The heating device heats the water in the inlet pipe and then delivers it to the second pipeline or the dissolved air device, allowing the user to access both heated dissolved air water and heated regular water, improving the user experience. Users can flexibly control the water output mode of the water heater as needed, resulting in high user satisfaction.

[0028] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention. Attached Figure Description

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0030] Figure 1 This is a schematic diagram of a micro / nano bubble liquid generation system according to some embodiments of the first aspect of the present invention.

[0031] Figure 2 This is a schematic diagram of the flow path of the mixing chamber of the micro / nano bubble liquid generation system in air intake mode, according to some embodiments of the first aspect of the present invention.

[0032] Figure 3 This is a schematic diagram of the flow path of the mixing chamber of the micro / nano bubble liquid generation system according to some embodiments of the first aspect of the present invention in dissolved gas mode, wherein the pump is not turned on.

[0033] Figure 4 This is a schematic diagram of the flow path of the mixing chamber of the micro / nano bubble liquid generation system according to some embodiments of the first aspect of the present invention in dissolved gas mode, wherein the pump is turned on and pressurized.

[0034] Figure 5This is a schematic diagram of the flow path of a micro / nano bubble liquid generation system according to some embodiments of the first aspect of the present invention in normal water output mode, wherein the pump is turned on and pressurized.

[0035] Figure 6 This is a flow path diagram of a micro / nano bubble liquid generation system according to some embodiments of the first aspect of the present invention, when it is simultaneously in a normal water output mode and a dissolved gas liquid output mode, wherein the pump is turned on and pressurized.

[0036] Figure 7 This is a schematic diagram of a micro / nano bubble liquid generation system according to some embodiments of the second aspect of the present invention, wherein an air pump is also provided on the air inlet pipe.

[0037] Figure 8 This is a schematic diagram of a micro / nano bubble liquid generation system according to some embodiments of the third aspect of the present invention, wherein a liquid level sensor is provided on the dissolved gas device.

[0038] Figure 9 This is a schematic diagram of a dissolved gas apparatus according to some embodiments of the invention.

[0039] Figure 10 A schematic diagram of the flow path of a water heater according to some embodiments of the invention.

[0040] Figure label:

[0041] 100. Micro / nano bubble liquid generation system;

[0042] 1. Dissolved gas device; 11. Gas inlet; 12. Liquid inlet; 13. Liquid outlet;

[0043] 14. Housing; 141. First end cap; 142. Second end cap;

[0044] 15. Partition plate; 151. Through hole; 16. Mixing chamber; 161. Liquid level sensor;

[0045] 3. Controller;

[0046] 4. Water outlet component; 41. Micro / nano bubble generator;

[0047] 5. Intake pipe; 51. Second check valve; 52. Air pump;

[0048] 6. Discharge pipe; 61. Water outlet switch; 62. First check valve;

[0049] 7. Inlet pipe; 71. Flow sensor; 73. First valve body; 74. Second valve body; 75. Pump body;

[0050] 8. First pipeline; 81. Third valve body; 82. First inlet end; 83. First outlet end;

[0051] 9. Second pipeline; 91. Fourth valve body; 92. Second inlet; 93. Second outlet;

[0052] 1000, water heater; 400, heating device. Detailed Implementation

[0053] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0054] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "top", "bottom", "inner", "outer", "axial", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0055] The micro / nano bubble liquid generation system 100 of the present invention is described below with reference to the accompanying drawings.

[0056] A micro / nano bubble liquid generation system 100 according to an embodiment of the present invention, such as Figure 1 , Figure 7 and Figure 8 As shown, it includes a dissolved gas device 1, a pump body 75, a first valve body 73, a second valve body 74, a first pipeline 8, a third valve body 81, a second pipeline 9, and a fourth valve body 91.

[0057] The dissolved air device 1 includes a mixing chamber 16, and has an air inlet pipe 5, a liquid inlet pipe 7, and a liquid outlet pipe 6 connected to the mixing chamber 16. The liquid inlet pipe 7 introduces liquid into the mixing chamber 16, the air inlet pipe 5 introduces gas into the mixing chamber 16, and the liquid outlet pipe 6 can be used to discharge liquid to the water terminal.

[0058] Furthermore, the pump body 75 is located on the liquid inlet pipe 7, and the operation of the pump body 75 can pressurize the entire micro-nano bubble liquid generation system 100.

[0059] In addition, a second valve body 74 and a first valve body 73 are provided on the inlet pipe 7. The pump body 75 is located between the second valve body 74 and the first valve body 73. Furthermore, the first valve body 73 is provided on the inlet side of the pump body 75, and the second valve body 74 is provided on the outlet side of the pump body 75. That is to say, the second valve body 74 is closer to the dissolved gas device 1 than the first valve body 73.

[0060] Furthermore, a third valve body 81 is provided on the first pipeline 8 to control the opening and closing of the first pipeline 8. The first inlet end 82 of the first pipeline 8 is connected between the first valve body 73 and the pump body 75, and the first outlet end 83 of the first pipeline 8 is connected to the outlet pipe 6.

[0061] Therefore, with the third valve body 81 open and the second valve body 74 closed, the liquid flowing through the first valve body 73 can directly enter the outlet pipe 6 through the first pipeline 8; with the first valve body 73 and the second valve body 74 open, the liquid flowing through the first valve body 73 can not only be directly discharged from the third valve body 81 to the outlet pipe 6, but can also be discharged to the outlet pipe 6 through the dissolved gas device 1.

[0062] Furthermore, a fourth valve body 91 is installed on the second pipeline 9 to control the opening and closing of the second pipeline 9. The second inlet end 92 of the second pipeline 9 is connected between the pump body 75 and the second valve body 74, and the second outlet end 93 of the second pipeline 9 is connected to the outlet pipe 6 and located on the outlet side of the first outlet end 83. That is to say, the first outlet end 83 is closer to the dissolved air device 1 than the second outlet end 93. When the liquid in the dissolved air device 1 flows into the outlet pipe 6, under a specific flow path, it can preferentially enter the first pipeline 8 from the first outlet end 83, providing a reliable structural guarantee for the liquid discharge and air intake of the dissolved air device 1.

[0063] When the first valve 73 is open, the third valve 81 is closed, and the fourth valve 91 is open, the liquid flowing through the pump body 75 can not only flow into the dissolved air device 1 through the second valve 74, but also flow directly to the outlet pipe 6 through the second pipe 9. When both the first valve 73 and the second valve 74 are closed, and both the third valve 81 and the fourth valve 91 are open, the dissolved air device 1 can form a complete passage with the outlet pipe 6, the first pipe 8, the inlet pipe 7, and the second pipe 9, thereby realizing the discharge and intake of the dissolved air device 1 while the pump body 75 is running.

[0064] As can be seen from the above structure, the micro-nano bubble liquid generation system 100 of this embodiment of the invention can achieve different liquid inlet and liquid outlet forms by changing the state of different valve bodies, and can achieve flexible and varied liquid outlet forms in conjunction with the operation of the pump body 75.

[0065] like Figure 2As shown, when the first pipe 8 and the second pipe 9 are connected to the inlet pipe 7 and the outlet pipe 6 respectively, under the action of the pump body 75, the liquid in the mixing chamber 16 can be discharged sequentially from the outlet pipe 6, the first pipe 8, the inlet pipe 7, the second pipe 9 and the outlet pipe 6, thereby reducing the pressure in the mixing chamber 16. The air inlet pipe 5 introduces air into the mixing chamber 16 to achieve a liquid discharge mode. At this time, the original liquid in the mixing chamber 16 can be discharged separately from the outlet pipe 6 to the water terminal. During the air intake process of the mixing chamber 16, the water terminal still maintains a certain amount of water output.

[0066] like Figure 3 and Figure 4 As shown, when the inlet pipe 7 is connected to the mixing chamber 16, liquid can be rapidly introduced into the mixing chamber 16, thereby rapidly increasing the liquid volume and pressurizing the mixing chamber 16. This allows the gas entering the mixing chamber 16 to quickly dissolve in the liquid, achieving gas dissolution in the mixing chamber 16. Subsequently, the outlet pipe 6 can discharge the dissolved gas liquid, providing a reliable guarantee for subsequent processing into micro-nano bubble water.

[0067] like Figure 5 and Figure 6 As shown, when the inlet pipe 7 is connected to the second pipe 9, ordinary liquid without bubbles can be quickly discharged.

[0068] When the inlet pipe 7 is connected to the first pipe 8, the inlet pipe 7 can be quickly discharged from the outlet pipe 6 without passing through the pump body 75. For example, in a specific example, this flow path can ensure that the outlet pipe 6 never stops flowing, and there is no need to stop the flow even when the dissolved gas device 1 is replenishing gas.

[0069] In the micro / nano bubble liquid generation system 100 of this invention, the pump body 75 can be turned on or off under different flow paths. For example, in the aforementioned... Figure 2 When air is introduced into the mixing chamber 16 through the air inlet pipe 5, the pump body 75 is opened, which provides a certain power for the discharge of liquid from the mixing chamber 16. This allows the liquid in the mixing chamber 16 to preferentially enter the first pipeline 8 from the first outlet end 83, and then be introduced into the second pipeline 9 through the action of the pump body 75. The liquid in the second pipeline 9 then re-enters the outlet pipe 6 from the second outlet end 93, which is closer to the water terminal, and is then output to the water terminal through the outlet pipe 6.

[0070] For example, in the aforementioned Figure 3 When the inlet pipe 7 feeds liquid into the mixing chamber 16, the mixing chamber 16 can be fed normally when the pump body 75 is closed; while when the pump body 75 is open, the mixing chamber 16 can enter a rapid pressurized feeding mode, improving the efficiency of liquid feeding into the mixing chamber 16. Therefore, the pump body 75 can not only act as a discharge pump, but also as a booster pump for the system, improving the system's operating efficiency.

[0071] Understandably, compared to the pressurized dissolved air method in existing technologies that requires a booster pump, the micro-nano bubble liquid generation system 100 of this invention has a simple structure and low cost; it is modular in form, small in size and compact in layout, convenient for use on small equipment and its volume can be changed to meet different usage scenarios, with low noise and low vibration. Compared to existing technologies that rely on an air pump for air intake control, the micro-nano bubble liquid generation system 100 of this invention can achieve air intake through the pressure difference between the mixing chamber 16 and the air intake pipe 5 when the pump body 75 discharges liquid, and can also control pressurized liquid intake, simplifying components and improving the air intake and dissolved air efficiency of the mixing chamber 16. Compared to existing technologies where switching between micro-nano bubble water output and ordinary water output is difficult and inconvenient, the micro-nano bubble liquid generation system 100 of this invention can achieve rapid switching between micro-nano bubble water output and ordinary water output by adjusting the opening and closing of different valves and the operation of the pump body 75, making the water use at the water terminal flexible.

[0072] In the description of this invention, features defined with "first", "second", "third" and "fourth" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or importance.

[0073] It should be noted that the liquid in this invention refers to a liquid containing a certain amount of gas, or a heated liquid, or tap water with a certain amount of impurities at a lower temperature, or purified water after being purified by a purification device, or relatively pure water supplied to a domestic water tank. The water inlet described in this invention mainly refers to the liquid inlet, and the water outlet mainly refers to the liquid outlet. These terms should be interpreted broadly and should not be narrowly limited to the water described in the chemical field.

[0074] Optionally, the first valve body, second valve body, third valve body, and fourth valve body of the present invention can all be normally open valves or normally closed valves, or simple solenoid valves, as long as they can control the opening and closing of the corresponding pipelines.

[0075] In some embodiments of the present invention, such as Figure 1 , Figure 7 and Figure 8 As shown, the micro-nano bubble liquid generation system 100 also includes a first one-way valve 62, which is located on the liquid outlet pipe 6 between the first liquid outlet end 83 and the second liquid outlet end 93. The first one-way valve 62 enables the liquid outlet pipe 6 to be unidirectionally open.

[0076] In these examples, the first one-way valve 62 allows the liquid in the outlet pipe 6 to flow only from the direction of the dissolved air device 1 to the direction of the second outlet 93, and not in the opposite direction; or, the first one-way valve 62 allows the liquid in the outlet pipe 6 to flow only from the direction of the first outlet 83 to the direction of the second outlet 93, and not in the opposite direction. Figure 2 During the air intake process of the dissolved air device 1 shown, the pump body 75 can only draw the liquid in the dissolved air device 1 into the first pipeline 8 and discharge it to the outlet pipe 6 through the second pipeline 9. The liquid discharged to the outlet pipe 6 cannot flow in reverse to the first outlet end 83 through the first one-way valve 62. Thus, when the pump body 75 is running, the liquid in the mixing chamber 16 can be continuously discharged from the outlet pipe 6 to the water terminal, preventing the water flow from forming a dead cycle.

[0077] Of course, in other examples, the first one-way valve 62 can be omitted, and the distance between the second liquid outlet 93 and the first liquid outlet 83 can be increased, so that the second liquid outlet 93 is set further away from the first liquid outlet 83. In this case, no matter how the pump body 75 operates, the liquid in the second pipeline 9 will not be drawn back into the first pipeline 8, and the dead loop of water flow when the mixing chamber 16 is draining liquid and inlet air will not be formed.

[0078] In some embodiments of the present invention, the mixing chamber 16 has an air intake mode and a dissolved gas mode, and the mode switching is achieved by changing the operating state of the first valve body 73, the second valve body 74, the third valve body 81, the fourth valve body 91 and the pump body 75.

[0079] In some examples, such as Figure 2As shown, the first valve body 73 and the second valve body 74 are closed. At this time, the inlet pipe 7 no longer supplies liquid, and the dissolved gas device 1 also no longer supplies liquid, but a certain amount of liquid remains in the dissolved gas device 1. Further, the third valve body 81 is opened to connect the first pipeline 8 to the inlet pipe 7 and the outlet pipe 6 respectively; the fourth valve body 91 is opened to connect the second pipeline 9 to the inlet pipe 7 and the outlet pipe 6 respectively. At the same time, the portion of the inlet pipe 7 between the first inlet end 82 and the second inlet end 92 is connected, and the portion of the outlet pipe 6 between the dissolved gas device 1 and the first outlet end 83 is also connected. When the pump body 75 is running, it provides power and discharges the liquid in the mixing chamber 16 sequentially from the outlet pipe 6, the first pipe 8, the inlet pipe 7, the second pipe 9, and downstream of the outlet pipe 6. Simultaneously, the liquid in the mixing chamber 16 continuously decreases, causing a pressure drop within the mixing chamber 16, which has a certain volume. This creates a pressure difference between the mixing chamber 16 and the air inlet pipe 5, allowing gas from the air inlet pipe 5 to quickly enter the mixing chamber 16. Finally, the mixing chamber 16 switches to air intake mode. In air intake mode, because the outlet pipe 6 is still discharging liquid, the water terminal will not stop flowing until the mixing chamber 16 is completely drained, thus maintaining water intake at the water terminal while the mixing chamber 16 is receiving air.

[0080] In some examples, such as Figure 3 and Figure 4 As shown, at least when the first valve body 73 is opened to allow liquid to enter the inlet pipe 7, the second valve body 74 is opened to allow liquid to enter the dissolved gas device 1, and the third valve body 81 is closed to stop the first pipe 8 from discharging liquid, liquid can be quickly filled into the dissolved gas device 1, thereby rapidly filling the volume of the mixing chamber 16 with a certain volume with liquid, thus causing the pressure in the mixing chamber 16 to increase sharply. Then the gas that previously entered the mixing chamber 16 will dissolve in the liquid under high pressure, thereby switching the mixing chamber 16 from the gas inlet mode to the dissolved gas mode. At this time, the outlet pipe 6 can deliver a large amount of dissolved gas liquid to the outside.

[0081] like Figure 4 As shown, in dissolved air mode, the pump body 75 of the present invention is opened, which can further increase the flow rate or pressure of the liquid entering the dissolved air device 1, thereby improving the dissolved air effect. And... Figure 4 In the example, the fourth valve body 91 also remains closed, so the outlet pipe 6 only outputs dissolved gas liquid.

[0082] like Figure 6As shown, in dissolved air mode, the fourth valve 91 is open. At this time, the outlet pipe 6 can output not only a larger amount of dissolved air liquid, but also ordinary, bubble-free liquid, increasing the water output of the outlet pipe 6 and meeting the user's demand for a large water volume. These examples are suitable for users with a smaller demand for dissolved air liquid but a larger demand for water. In these examples, a certain amount of liquid can also be appropriately added to the mixing chamber 16, ensuring a continuous flow of usable liquid to the water terminal during subsequent air replenishment in the mixing chamber 16.

[0083] Of course, in other examples, the second valve body 74 and the fourth valve body 91 can be opened alternately, so that, given that there is a certain amount of dissolved liquid in the dissolved gas device 1, either the dissolved liquid can be discharged or ordinary liquid can be discharged directly, making the switching between the output of dissolved liquid and the output of ordinary bubble-free liquid efficient and convenient, and enabling flexible water use using a water terminal.

[0084] In some examples, such as Figure 5 As shown, when the second valve body 74 is closed to prevent liquid from entering the dissolved air device 1, the third valve body 81 is closed to prevent liquid from entering the first pipeline 8, the first valve body 73 is opened to allow liquid to enter the inlet pipe 7, and the fourth valve body 91 is opened to allow liquid to exit the second pipeline 9. When the pump body 75 is open, it is possible to quickly pressurize and dispense ordinary water without bubbles. As a result, the water terminal can obtain a large amount of water without bubbles, without having to go through the dissolved air device 1 for liquid dispensing. This saves flow path and improves the efficiency of the micro-nano bubble liquid generation system 100 when switching to ordinary water mode.

[0085] In some embodiments of the present invention, the micro / nano bubble liquid generation system 100 further includes a second one-way valve 51, which is disposed on the air inlet pipe 5 to allow gas to flow unidirectionally from the air inlet pipe 5 to the mixing chamber 16. Therefore, the gas in the mixing chamber 16 will not flow back into the air inlet pipe 5 through the second one-way valve 51, thereby ensuring that the pressure in the mixing chamber 16 is controllable. Thus, when liquid is introduced into the mixing chamber 16 through the liquid inlet pipe 7, the pressure in the mixing chamber 16 can steadily increase, ensuring the gas dissolution effect.

[0086] Optionally, such as Figure 7As shown, the micro / nano bubble liquid generation system 100 also includes an air pump 52, which is located on the air inlet pipe 5 and on the air inlet side of the second one-way valve 51. The air pump 52 can inflate the mixing chamber 16. The second one-way valve 51 can effectively control the flow direction of the airflow in the air inlet pipe 5, ensuring that the airflow can only flow from the air pump 52 towards the mixing chamber 16 in one direction, and not the other way around. This ensures that the pressure between the air inlet pipe 5 and the gas dissolving device 1 is controllable, preventing the gas dissolving device 1 from depressurizing or even failing to intake air. The air pump 52 is used to pump air into the gas dissolving device 1. The air pressure pumped by the air pump 52 is greater than or equal to the pressure inside the gas dissolving device 1, thereby enabling the air pump 52 to actively pump air into the mixing chamber 16, realizing the intake of the mixing chamber 16 and improving the intake efficiency of the mixing chamber 16.

[0087] It is understood that the combined use of the air pump 52 and the pump body 75 in this invention enables more efficient air intake into the mixing chamber 16. The pump body 75 draws liquid to reduce the pressure in the mixing chamber 16, while simultaneously the air pump 52 actively operates and increases the pressure in the air intake pipe 5. This results in a greater pressure difference between the air pumped by the air pump 52 and the pressure inside the dissolved air device 1, allowing for faster control of air intake into the mixing chamber 16 and easier achievement of efficient air intake into the mixing chamber 16.

[0088] Optionally, the air pressure P2 pumped by the air pump 52 is in the range of 0.1 MPa to 1.2 MPa; and / or the water inlet pressure of the liquid inlet pipe 7 is in the range of 0.01 MPa to 1.2 MPa. That is, the air pressure pumped by the air pump 52 can be in the range of 0.1 MPa to 1.2 MPa; the water inlet pressure of the liquid inlet pipe 7 can be in the range of 0.01 MPa to 1.2 MPa; or the air pressure pumped by the air pump 52 can be in the range of 0.1 MPa to 1.2 MPa, and the water inlet pressure of the liquid inlet pipe 7 can be in the range of 0.01 MPa to 1.2 MPa. This simplifies the controller's control logic and reduces production costs.

[0089] For example, the air pressure pumped by the air pump 52 can be: 0.1MPa, 0.15MPa, 0.2MPa, 0.25MPa, 0.3MPa, 0.35MPa, 0.4MPa, 0.45MPa, 0.5MPa, 0.55MPa, 0.6MPa, 0.65MPa, 0.7MPa, 0.75MPa, 0.8MPa, 0.85MPa, 0.9MPa, 0.95MPa, 1.0MPa, 1.05MPa, 1.1MPa, 1.15MPa, 1.2MPa, etc.

[0090] Therefore, the corresponding inlet pressure of the liquid inlet pipe 7 can be: 0.01MPa, 0.05MPa, 0.1MPa, 0.15MPa, 0.2MPa, 0.25MPa, 0.3MPa, 0.35MPa, 0.4MPa, 0.45MPa, 0.5MPa, 0.55MPa, 0.6MPa, 0.65MPa, 0.7MPa, 0.75MPa, 0.8MPa, 0.85MPa, 0.9MPa, 0.95MPa, 1.0MPa, 1.05MPa, 1.1MPa, 1.15MPa, 1.2MPa, etc.

[0091] In some embodiments of the present invention, such as Figure 1 , Figure 7 and Figure 8 As shown, the liquid inlet pipe 7 is connected to the mixing chamber 16 through the liquid inlet 12, the air inlet pipe 5 is connected to the mixing chamber 16 through the air inlet 11, and the mixing chamber 16 is also provided with a liquid outlet 13, which is connected to the liquid outlet pipe 6.

[0092] In other words, the dissolved air device 1 has a liquid inlet 12, an air inlet 11 and a liquid outlet 13 through its container wall, wherein the mixing chamber 16 is connected to the external flow path or gas path through the liquid inlet 12, the air inlet 11 and the liquid outlet 13.

[0093] Optionally, the liquid outlet 13 is formed at the bottom of the dissolved gas device 1, the liquid inlet 12 is formed at the top or upper part of the dissolved gas device 1, and the air inlet 11 is formed at the top, bottom, or side wall of the dissolved gas device 1. That is, the air inlet 11 can be formed at the top, bottom, or side wall of the dissolved gas device 1; the liquid inlet 12 can be formed at the top or upper part of the dissolved gas device 1; and the liquid outlet 13 is formed at the bottom of the dissolved gas device 1. Therefore, it can be flexibly and conveniently adapted to different user needs and application scenarios.

[0094] In specific examples, such as Figure 9 As shown, the liquid inlet 12 is formed at the top of the dissolved air device 1, which can increase the water flow rate and increase the air bubble content in the air bubble mixing; the air inlet 11 is formed at the top of the dissolved air device 1, which has a simple structure and is easy to assemble; the liquid outlet 13 is formed at the bottom of the dissolved air device 1, which utilizes the gravity of the water itself and the pressure inside the dissolved air device 1, so that the water can flow out smoothly without the need for additional parts, and there is no water that has been stagnant for a long time, which affects the water quality and harms human health.

[0095] like Figure 9As shown, the dissolved air device 1 includes a housing 14 and a partition 15. The housing 14 includes a first end cap 141, a second end cap 142, and a main cavity. The partition 15 is located inside the main cavity. The partition 15 has a through hole 151, a connecting flange, and a water channel. The connecting flange is welded to the inner peripheral wall of the main cavity. The partition 15 divides the main cavity into a mixing chamber 16 and a dissolving water chamber. The mixing chamber 16 is located on the left side of the partition 15, and the dissolving water chamber is located on the right side of the partition 15. The liquid inlet 12 is formed directly above the mixing chamber 16, and the liquid outlet 13 is formed at the bottom of the housing 14 and below the dissolving water chamber. The air inlet 11 is formed at the top of the housing 14. The main cavity has recesses at the liquid outlet 13, the air inlet 11, and the liquid inlet 12 that face inwards. The dissolved air device 1 has a simple overall structure, is easy to install and maintain, and has low production cost.

[0096] In some embodiments, the ratio between the width of the mixing chamber 16 in the left-right direction and the width of the dissolving water chamber in the left-right direction is in the range of 1 / 5 to 1. That is, in the left-right direction, the ratio between the width of the mixing chamber 16 and the width of the dissolving water chamber is in the range of one-fifth to one. When the ratio between the width of the mixing chamber 16 and the width of the dissolving water chamber is less than one-fifth, the width of the mixing chamber 16 in the left-right direction is small, and sufficient air bubble mixing cannot be generated in the mixing chamber 16, thus affecting the bubble content and quality of the dissolved water. When the ratio between the width of the mixing chamber 16 and the width of the dissolving water chamber is greater than 1, the width of the mixing chamber 16 in the left-right direction is large, and the width of the dissolving water chamber in the left-right direction is small. There is more air bubble mixing in the mixing chamber 16, and less water to be dissolved in the dissolving water chamber. The air bubble mixing cannot be completely dissolved into the water, resulting in waste of resources and affecting the user's need for dissolved water.

[0097] like Figure 9 As shown, in the left-right direction, the ratio between the width of the mixing chamber 16 and the width of the dissolving water chamber is between one-fifth and one. This prevents water flowing parallel to the baffle 15 from impacting the baffle 15 and affecting the generation of air bubble mixing. When the water flow impacts and forms air bubble mixing, within the relatively small space of the mixing chamber 16, the air bubbles within the air bubble mixing are more concentrated, resulting in a higher content of micro-nano bubbles, thereby improving the quality of the micro-nano bubble water. In this way, the generated air bubble mixing is sufficient to dissolve in the dissolved water without wasting resources, and the quality of the dissolved water is guaranteed.

[0098] For example, in the left-right direction, the ratio between the width of the mixing chamber 16 and the width of the dissolving water chamber can be: 1 / 5, 1 / 4, 1 / 3, 1 / 2, 1, etc.

[0099] Preferably, such as Figure 9 As shown, the ratio between the width of the mixing chamber 16 and the width of the dissolving water chamber in the left-right direction is 1 / 2. This ensures a sufficient content of micro-nano bubbles in the air bubble mixing, improving the economic practicality of the dissolved air device 1.

[0100] In some embodiments, the ratio between the volume of the mixing chamber 16 and the volume of the dissolving water chamber is in the range of 1 / 4 to 1. When the ratio between the volume of the mixing chamber 16 and the volume of the dissolving water chamber is less than one-quarter, the volume of the mixing chamber 16 is small, and the air bubble mixing generated in the mixing chamber 16 is insufficient, which cannot guarantee the content of air bubbles in the dissolved liquid, thereby reducing the quality of the dissolved liquid and affecting the user experience. When the ratio between the volume of the mixing chamber 16 and the volume of the dissolving water chamber is greater than one, the volume of the mixing chamber 16 is large, and there is more air bubble mixing in the mixing chamber 16. The liquid to be dissolved in the dissolving water chamber cannot dissolve as many air bubbles as possible, resulting in a large amount of residual air bubbles and wasting resources.

[0101] In some specific examples, the ratio between the volume of the mixing chamber 16 and the volume of the dissolving water chamber can be: 1 / 4, 1 / 3, 1 / 2, 1, etc.

[0102] Optionally, the ratio between the volume of the mixing chamber 16 and the volume of the dissolving water chamber is 1 / 2. This ensures that the volume of the dissolving water chamber is sufficient for the user's use, while also ensuring a sufficient content of micro-nano bubbles in the air bubble mixing, thereby improving the economic practicality of the dissolved air device 1.

[0103] In some embodiments, the ratio between the vertical height of the partition 15 and the vertical dimension of the cross-section of the housing 14 at the location of the partition 15 is between 0.4 and 0.9. That is, the upper or lower part of the partition 15 is spaced apart from the housing 14 to form a flow channel. When the ratio between the vertical height of the partition 15 and the vertical dimension of the cross-section of the housing 14 at the location of the partition 15 is less than 0.4, the air bubble mixing can only enter the dissolved water chamber through the through hole 151 of the partition 15. The air bubble mixing is less, and the mixing of the air bubble mixing with the water is incomplete and uneven, which reduces the content of micro-nano bubble water and thus reduces the quality of micro-nano bubble water.

[0104] When the ratio between the vertical height of the partition 15 and the vertical cross-section of the shell 14 at the location of the partition 15 is greater than 0.9, the distance between the top of the partition 15 and the top of the shell 14 is large. A large number of air bubbles flow directly from the flow channel at the top of the partition 15 into the dissolving water chamber through the mixing chamber 16. This results in incomplete and uneven mixing of air bubbles and water in the main chamber, reducing the number of micro-nano bubbles in the micro-nano bubble water and thus reducing the quality of the micro-nano bubble water.

[0105] Therefore, the ratio between the vertical height of the partition 15 and the vertical dimension of the cross section of the housing 14 at the location of the partition 15 is between 0.4 and 0.9, which accelerates the mixing speed of air bubbles and water in the main cavity while ensuring sufficient mixing of air bubbles and water.

[0106] In a specific example, the ratio between the vertical height dimension of the partition 15 and the vertical dimension of the cross section of the housing 14 at the location of the partition 15 is between 0.4 and 0.9: 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, etc.

[0107] Optionally, the ratio between the height dimension of the partition 15 in the vertical direction and the vertical dimension of the cross section of the shell 14 at the location of the partition 15 is 0.4. This ensures the quality of the micro-nano bubble water, accelerates the mixing speed of air bubbles and water in the main cavity, and ensures thorough mixing of air bubbles and water.

[0108] When the inlet water pressure is less than the inlet air pressure, the dissolved air device 1 first closes the liquid inlet 12, and the air pump 52 pumps the gas into the housing 14 of the dissolved air device 1 through the air inlet 11. The first valve body 73 and the second valve body 74 are closed and the third valve body 81 and the fourth valve body 91 are opened. The pump body 75 discharges the water in the dissolved air device 1 from the liquid outlet 13 and air enters the dissolved air device 1. Then, after the dissolved air device 1 is partially or completely filled with air, the air pump 52 stops supplying gas and the pump body 75 stops pumping liquid. Then, the inlet 12 is opened, the first valve body 73 and the second valve body 74 are opened, and the third valve body 81 and the fourth valve body 91 are closed. High-pressure water enters the mixing chamber 16 of the dissolved air device 1 through the inlet 12. In the high-pressure mixing chamber 16, the water flow impacts and forms air bubbles, which increases the contact area between air and water and increases the content of air dissolved in the liquid, eventually forming a dissolved air liquid. The dissolved air liquid flows into the dissolved water chamber through the partition 15.

[0109] In some embodiments of the present invention, the inlet 12 is provided with a jetting element for injecting liquid into the dissolved air device 1, and / or the inlet 12 is provided with a plurality of spaced-apart inlet holes. That is, the jetting element can be located at the inlet 12 of the dissolved air device 1 to inject liquid into the mixing chamber 16, or a plurality of spaced-apart inlet holes can be provided at the inlet 12, or both a jetting element and a plurality of inlet holes can be provided at the inlet 12. In this way, when liquid enters the dissolved air device 1, the liquid flow rate increases, increasing the contact area between the liquid and air, making the air bubbles in the dissolved air device 1 more dense, thereby providing a stable guarantee for the subsequent formation of micro / nano bubble water.

[0110] In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0111] In some embodiments of the present invention, the micro / nano bubble liquid generation system 100 further includes a water flow sensor 71, which is disposed on the liquid inlet pipe 7 to detect the liquid flow rate of the liquid inlet pipe 7. This allows for real-time detection of whether liquid is flowing through and the flow rate of the flowing liquid.

[0112] Optionally, the water flow sensor 71 is located upstream or downstream of the first valve body 73 in the direction of water flow, which facilitates installation by the user according to different needs, makes operation convenient, expands the scope of application, and improves the ease of installation for the user. For example, in a specific example, the water flow sensor 71 is located between the first valve body 73 and the pump body 75, and is located on the water inlet side of the first liquid inlet end 82.

[0113] Optionally, the micro / nano bubble liquid generation system 100 also includes a controller. When the controller receives an air intake signal, it controls the mixing chamber 16 to enter the air intake mode. This air intake signal can be selected via external buttons, voice control, remote control, or other methods, thereby allowing air to enter the mixing chamber 16. Alternatively, the air intake mode can be automatically triggered by internal components fulfilling a preset program during operation.

[0114] Optionally, the controller is communicatively connected to the water flow sensor 71 and the pump body 75, thereby enabling the controller to control the operation of the pump body 75 according to the operation of the water flow sensor 71, accurately controlling the water inlet volume and water inlet pressure of the mixing chamber 16 in dissolved air mode, saving resources, ensuring sufficient liquid to meet dissolved air requirements, and ensuring sufficient water output during normal liquid discharge without bubbles.

[0115] To further enhance the control of air intake, the micro / nano bubble liquid generation system 100 also includes a water outlet switch 61. The water outlet switch 61 is located on the liquid outlet pipe 6 of the dissolved air device 1 and is communicatively connected to the controller. When the water outlet switch 61 is open, and the controller detects signals that the first valve body 73 is closed, the second valve body 74 is closed, and the third valve body 81 and the fourth valve body 91 are open, it controls the pump body 75 to start. This allows the controller to control the pump body 75 to operate, enabling air to enter and liquid to exit the mixing chamber 16, upon receiving the signal that the water outlet switch 61 is open.

[0116] The water outlet switch 61 communicates with the controller and can also be used in dissolved air control: when the controller detects signals that the first valve body 73 is open, the second valve body 74 is open and the third valve body 81 and the fourth valve body 91 are closed, the water outlet switch 61 opens. If the controller determines that the flow rate in the water flow sensor 71 is insufficient, it can control the pump body 75 to open for pressurization, so that the mixing chamber 16 can quickly receive liquid and dissolve air. If the controller determines that the flow rate in the water flow sensor 71 is sufficient, it can control the pump body 75 to close, without the need for pressurization.

[0117] The water outlet switch 61 can also communicate with the controller and be used in the control of the normal water outlet mode: when the controller detects the signal that the first valve body 73 is open, the second valve body 74 is closed, the third valve body 81 is closed and the fourth valve body 91 is open, the water outlet switch 61 is opened at this time. When the controller determines that the water flow sensor 71 has detected the water flow signal, it controls the pump body 75 to open and pressurize the liquid to discharge, so that the bubble-free normal water can flow quickly to the water terminal.

[0118] Optionally, in the aforementioned examples with an air pump 52, the controller is communicatively connected to the air pump 52 to control the start and stop of the air pump 52, thereby controlling the efficiency of air intake into the mixing chamber 16 after the air pump 52 is turned on.

[0119] In some embodiments of the present invention, such as Figure 8 As shown, the micro / nano bubble liquid generation system 100 also includes a liquid level sensor 161, which is communicatively connected to the controller. The liquid level sensor 161 is used to detect the liquid level height in the mixing chamber 16, and the controller receives the liquid level height signal. This allows for precise determination of the liquid level in the mixing chamber 16, and further determination of the pressure in the mixing chamber 16 based on the liquid level. This facilitates more accurate judgment and control of the liquid discharge, gas inlet, and gas dissolution processes in the mixing chamber 16, thereby further ensuring the quality of the dissolved gas liquid flowing out from the liquid outlet pipe 6, providing a reliable guarantee for the subsequent formation of microbubble water, and ensuring the gas density of the microbubble water.

[0120] Furthermore, when the controller determines that the liquid level meets the preset conditions, it controls the mixing chamber 16 to enter the air intake mode or the dissolved air mode.

[0121] Optionally, the liquid level sensor 161 is located above the middle (including the upper part) of the mixing chamber 16. The controller is used to control the dissolved gas device 1 to enter the air intake mode when the liquid level is higher than the first preset liquid level threshold. That is, the liquid level sensor 161 can be located in the middle or upper part of the mixing chamber 16. When the liquid level sensor 161 detects that the liquid level is higher than the first preset liquid level threshold, it indicates that there is a high liquid level in the mixing chamber 16. At this time, the dissolved gas device 1 is controlled to enter the air intake mode, that is, the pump body 75 is controlled to run, the first valve body 73 is controlled to close, the second valve body 74 is controlled to close, the third valve body 81 is opened and the fourth valve body 91 is opened, so that the original liquid in the mixing chamber 16 is discharged to the liquid outlet pipe 6, thereby filling the mixing chamber 16 with the required gas during the liquid discharge process.

[0122] In a specific example, the liquid level sensor 161 is located above the middle of the mixing chamber 16. When the liquid level is higher than the upper limit of the first preset liquid level threshold, the dissolved gas device 1 is controlled to enter the gas intake mode, causing the pump body 75 to operate, the third valve body 81 and the fourth valve body 91 to operate, and the liquid to be discharged from the outlet pipe 6. When the liquid level is lower than the lower limit of the first preset liquid level threshold, the dissolved gas device 1 is controlled to enter the dissolved gas mode, causing the liquid inlet pipe 7 to feed liquid into the mixing chamber 16.

[0123] Optionally, the liquid level sensor 161 is located at the lower part of the mixing chamber 16. The controller is used to control the pump body 75 to stop pumping liquid and exit the air intake mode when the liquid level is within the second preset liquid level threshold. In a specific example, when the liquid level is lower than the lower limit of the first preset liquid level threshold, the controller controls the mixing chamber 16 to switch to dissolved air mode, so that the liquid inlet pipe 7 feeds liquid into the mixing chamber 16. In these examples, when the controller receives the air intake signal, it can first determine whether the liquid level is at the first preset liquid level. If it is lower than the first preset liquid level, it will not perform air intake but will first open the first valve body 73 and the second valve body 74 on the liquid inlet pipe 7 to allow liquid to enter the mixing chamber 16.

[0124] In some embodiments of the present invention, the micro-nano bubble liquid generation system 100 further includes a micro-nano bubble generator 41, which is connected to the liquid outlet pipe 6 and is used to convert dissolved gas liquid into micro-nano bubble water.

[0125] Optionally, the micro-nano bubble generator 41 may include a micro-nano bubbler with an axially penetrating micro-nano bubble water microchannel. The micro-nano bubble water microchannel may be in the form of a Venturi tube structure. One or more micro-nano bubble water microchannels may be provided. The dissolved air water in the bubble water channel is discharged through the micro-nano bubble water microchannel, thereby generating micro-nano bubble water with high micro-nano bubble density.

[0126] Optionally, the micro / nano bubble generator 41 includes an intermittent water flow channel. Because the water passage size of the micro / nano bubble water microchannel in the micro / nano bubble generator 41 is small, especially when the inlet water pressure is low, the water output is even smaller, making it difficult to meet the user's normal water usage needs. Therefore, in addition to the micro / nano bubble water microchannel, the micro / nano bubble generator 41 may also include an intermittent water flow channel. When the inlet water pressure is low, the intermittent water flow channel can be opened to increase the water output of the micro / nano bubble generator 41; when the inlet water pressure is high, the intermittent water flow channel can be closed to allow micro / nano bubble water to exit from the micro / nano bubble water microchannel of the micro / nano bubble generator 41.

[0127] In some embodiments of the present invention, the micro / nano bubble liquid generation system 100 further includes a water outlet 4, which is connected to the end of the liquid outlet pipe 6 (that is, the end of the liquid outlet pipe 6 away from the liquid outlet 13). The micro / nano bubble generator 41 is disposed inside the water outlet 4, which reduces the dissipation of micro / nano bubbles in the liquid outlet pipe 6 and further improves the quality of the micro / nano bubble water. The water outlet 4 is directly exposed to the water terminal, making installation and maintenance convenient.

[0128] Optionally, the water outlet 4 can be a shower head, such as a shower head on a kitchen sink, a shower head, or a dishwasher head, so that the micro-nano bubble water flowing out of the water outlet 4 can increase the cleaning and sterilization effects of the water. For example, it can achieve the clean cleaning of vegetables, fruits, and meats; it can also achieve the clean cleaning of dishes.

[0129] Optionally, the water outlet 4 can be a faucet, such as a faucet on a kitchen sink or a faucet on a washbasin for domestic use. This can also increase the degradation of pesticide residues on vegetables by the micro-nano bubble water flowing out of the water outlet 4, and kill bacteria and viruses.

[0130] Furthermore, such as Figure 5 As shown, when the second valve body 74 and the third valve body 81 are closed, and the pump body 75, the first valve body 73 and the fourth valve body 91 are open, the water outlet 4 forms normal water outlet, that is, the water outlet at this time is water that has not passed through the mixing chamber 16 for dissolved air.

[0131] In some embodiments of the present invention, the micro / nano bubble liquid generation system 100 further includes a power supply device connected to a controller, thereby supplying the controller with the necessary power so that the controller can operate normally.

[0132] The following description of an embodiment of the water heater 1000 of the present invention is based on the accompanying drawings. The water heater 1000 can be a gas water heater or an electric water heater, thereby greatly improving the dissolved air effect and water cleaning power at the outlet of the water heater 1000.

[0133] A water heater 1000 according to an embodiment of the present invention includes: a heating device 400 and a micro-nano bubble liquid generation system 100 as described in the foregoing examples. The structure of the micro-nano bubble liquid generation system 100 has been described in detail in the foregoing examples and will not be repeated here.

[0134] like Figure 10 As shown, the heating device 400 is installed on the inlet pipe 7 and is located between the pump body 75 and the second inlet end 92. In these examples, the hot water heated by the heating device 400 enters the dissolved air device 1 through the inlet pipe 7 and the second valve body 74, thus ensuring that the dissolved air liquid flowing out of the outlet pipe 6 has a high temperature, guaranteeing that the water heater 1000 supplies hot water at a high temperature. At the same time, when the fourth valve body 91 is open, the hot water heated by the heating device 400 can directly enter the outlet pipe 6 from the second pipe 9, thereby directly discharging hot, bubble-free ordinary hot water to the water user.

[0135] As can be seen from the above structure, in this embodiment of the water heater 1000, the pump body 75 is located on the inlet side of the heating device 400. Hot water does not need to pass through the pump body 75, thus protecting the pump body 75 from the impact of high-temperature liquid, thereby extending the service life and reliability of the pump body 75. The heating device 400 can heat the water in the inlet pipe 7 and then deliver it to the second pipe 9 or the dissolved air device 1, so that the user terminal can use both heated dissolved air hot water and heated ordinary water without bubbles, improving the user experience. Users can flexibly control the water output mode of the water heater 1000 as needed, realizing that the water heater 1000 can output dissolved air hot water with bubbles, or ordinary hot water without bubbles, or hot water with a certain amount of bubbles at the same time. The water terminal can control the water supply continuously, resulting in high user satisfaction. The water heater 1000 has stable internal pressure regulation, stable operation, good user experience, and high product safety. Users can install the various components of the micro-nano bubble liquid generation system 100 to the required locations as needed, improving the flexibility and convenience of product installation and increasing the practicality of the water heater 1000. The water outlet mode of the water heater 1000 is flexibly adjustable.

[0136] Optionally, the heating device 400 can be a heating inner tank equipped with an electric heating element, which is mainly applicable to electric water heaters, where the electric heating element heats the water in the heating inner tank.

[0137] Optionally, the heating device 400 can be a combination of a finned heat exchanger and a gas source, which is mainly applicable to gas water heaters, where the gas heats the finned heat exchanger and the water is heated after flowing out of the finned heat exchanger.

[0138] Optionally, the water heater 1000 includes: a cold water inlet channel, a hot water outlet channel, a heating device 400, and a micro / nano bubble liquid generation system 100. The outlet end of the cold water inlet channel is connected to the inlet end of the heating device 400, the inlet end of the hot water outlet channel is connected to the outlet end of the heating device 400, and the outlet end of the hot water outlet channel is connected to the dissolved air device 1. A pump body 75 is mounted on the inlet pipe 7 connected to the cold water inlet channel, and a second valve body 74 is mounted on the inlet pipe 7 connected to the hot water outlet channel. A first inlet end 82 is connected to the cold water inlet channel, and a second inlet end 92 is connected to the hot water outlet channel.

[0139] Furthermore, the inlet pipe 7, which is connected to the cold water inlet channel, is also equipped with a first valve body 73 and a water flow sensor 71. The cold water inlet channel is connected to tap water or a household water tank.

[0140] Optionally, the water heater 1000 of the present invention may also be equipped with a corresponding return water pipe and / or return water valve and cooperate with part of the pipeline of the micro-nano bubble liquid generation system 100 to achieve zero cold water control.

[0141] For example, in a specific example, the third inlet end of the return water pipe is connected to the cold water inlet channel, and the third outlet end of the return water pipe is connected to the outlet pipe 6 near the outlet switch 61. During the zero cold water supply process, the first valve body 73, the second valve body 74 and the third valve body 81 are closed, and the fourth valve body 91 and the pump body 75 are opened, so that the return water pipe, outlet pipe 6, second pipe 9, cold water inlet channel and hot water outlet channel form a loop to circulate and store a certain amount of hot water, thereby realizing that hot water can be dispensed at the water terminal when the outlet switch 61 is opened, improving the user's water comfort.

[0142] The micro-nano bubble liquid generation system 100 of the present invention can be used not only in the aforementioned water heater 1000, but also in other household appliances, such as beauty devices or dishwashers, thereby making the application scope of the micro-nano bubble liquid generation system 100 of the present invention wider.

[0143] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0144] The principle of micro-nano bubble generation in the micro-nano bubble liquid generation system 100 and water heater 1000 according to embodiments of the present invention, as well as the communication method between the controller and components such as pump body 75, first valve body 73, second valve body 74, third valve body 81, fourth valve body 91, water flow sensor 71, and liquid level sensor 161, are known to those skilled in the art and will not be described in detail here.

[0145] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0146] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A micro / nano bubble liquid generation system, characterized in that, include: A gas dissolving device, wherein a mixing chamber is formed inside the gas dissolving device, and an air inlet pipe, a liquid inlet pipe and a liquid outlet pipe are formed on the gas dissolving device and are connected to the mixing chamber; Pump body, wherein the pump body is mounted on the inlet pipe; The first valve body and the second valve body are both provided on the inlet pipe, with the first valve body provided on the inlet side of the pump body and the second valve body provided on the outlet side of the pump body. A first pipeline and a third valve body, wherein the third valve body is disposed on the first pipeline, the first inlet end of the first pipeline is connected between the first valve body and the pump body, and the first outlet end of the first pipeline is connected to the outlet pipe. The second pipeline and the fourth valve body are provided on the second pipeline. The second inlet end of the second pipeline is connected between the pump body and the second valve body. The second outlet end of the second pipeline is connected to the outlet pipe and is located on the outlet side of the first outlet end.

2. The micro / nano bubble liquid generation system according to claim 1, characterized in that, It also includes a first one-way valve, which is disposed on the outlet pipe between the first outlet end and the second outlet end, and the first one-way valve enables the outlet pipe to be unidirectionally open.

3. The micro / nano bubble liquid generation system according to claim 1 or 2, characterized in that, The mixing chamber has an air intake mode and a dissolved air mode, and the mode can be switched by changing the operating state of the first valve body, the second valve body, the third valve body, the fourth valve body and the pump body.

4. The micro / nano bubble liquid generation system according to claim 3, characterized in that, When the first valve body and the second valve body are closed, the third valve body and the fourth valve body are open, and the pump body is running, the mixing chamber switches to the air intake mode.

5. The micro / nano bubble liquid generation system according to claim 3, characterized in that, The mixing chamber switches to dissolved gas mode at least when the first valve body and the second valve body are open and the third valve body is closed.

6. The micro / nano bubble liquid generation system according to claim 5, characterized in that, In the dissolved gas mode, the pump body is turned on.

7. The micro / nano bubble liquid generation system according to claim 6, characterized in that, In the dissolved gas mode, the fourth valve body is opened.

8. The micro / nano bubble liquid generation system according to claim 1, characterized in that, It also includes a second one-way valve, which is disposed on the intake pipe to allow gas to flow unidirectionally from the intake pipe toward the mixing chamber.

9. The micro / nano bubble liquid generation system according to claim 8, characterized in that, It also includes an air pump, which is installed on the air inlet pipe and on the air inlet side of the second one-way valve. The air pump can inflate the mixing chamber.

10. The micro / nano bubble liquid generation system according to claim 1, characterized in that, It also includes a water flow sensor, which is installed on the inlet pipe to detect the inlet flow rate of the inlet pipe.

11. The micro / nano bubble liquid generation system according to claim 3, characterized in that, It also includes a controller, which, upon receiving an intake signal, controls the mixing chamber to enter intake mode.

12. The micro / nano bubble liquid generation system according to claim 11, characterized in that, It also includes a liquid level sensor, which is communicatively connected to the controller. The liquid level sensor is used to detect the liquid level height in the mixing chamber, and the controller receives the signal of the liquid level height. When the controller determines that the liquid level height meets the preset conditions, it controls the mixing chamber to enter the air intake mode or the dissolved air mode.

13. The micro / nano bubble liquid generation system according to claim 1, characterized in that, It also includes a micro / nano bubble generator, which is connected to the liquid outlet pipe.

14. The micro / nano bubble liquid generation system according to claim 13, characterized in that, It also includes a water outlet component, which is connected to the end of the liquid outlet pipe, and the micro-nano bubble generator is located inside the water outlet component; the water outlet component is a shower head or a faucet.

15. The micro / nano bubble liquid generation system according to claim 14, characterized in that, When the second valve body and the third valve body are closed, and the pump body, the first valve body and the fourth valve body are open, the water outlet component forms a normal water outlet.

16. A water heater, characterized in that, include: Heating device; According to any one of claims 1-15, the micro / nano bubble liquid generation system, the heating device is disposed on the liquid inlet pipe, and the heating device is disposed between the pump body and the second liquid inlet end.

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