Fluid delivery, microbubble generation system and water heater

Abstract

The application discloses a fluid conveying piece, a micro-bubble generating system and a water heater, and relates to the technical field of micro-bubbles, wherein the fluid conveying piece has a liquid inlet, a shunt flow channel and a liquid outlet which are sequentially communicated, the shunt flow channel at least comprises a first branch flow channel and a second branch flow channel which are arranged in parallel, a flow channel wall of the first branch flow channel is provided with a gas inlet for introducing external gas, the first branch flow channel is configured to be capable of generating a low-pressure area in the first branch flow channel when fluid passes through, and the gas inlet is at least partially directed to the low-pressure area. The technical scheme provided by the application can reduce the difficulty of gas injection, improve the gas dissolving effect, and ensure large-flow output.

Description

Technical Field

[0001] This invention relates to the field of microbubble technology, and in particular to a fluid transport component, a microbubble generating system, and a water heater. Background Technology

[0002] In related technologies, some water-using devices with microbubble functions (such as water heaters, washing machines, and shower equipment) typically have a dissolved air tank in their water system. Gas and liquid are mixed in the dissolved air tank before being output to the water outlet. Currently, most solutions directly pump air into the dissolved air tank using an air pump. This requires a high sealing pressure from the air pump; if the inlet pressure is too high, the air pump cannot pump air into the dissolved air tank, resulting in a significant decrease in the dissolved air effect. Some solutions close the inlet water flow shut-off valve during air pumping to allow air to enter the dissolved air tank, which causes a sudden drop in water flow, resulting in noticeable fluctuations in water flow and negatively impacting the user experience. Summary of the Invention

[0003] The main objective of this invention is to propose a fluid transport component, a microbubble generating system, and a water heater, which aims to reduce the difficulty of gas injection, improve the gas dissolution effect, and at the same time ensure a large flow rate output.

[0004] To achieve the above objectives, the present invention proposes a fluid conveying device having a liquid inlet, a diversion channel, and a liquid outlet connected in sequence. The diversion channel includes at least a first branch channel and a second branch channel arranged in parallel. The channel wall of the first branch channel is provided with an air inlet for introducing external gas. The first branch channel is configured to generate a low-pressure zone within the first branch channel when fluid passes through it. The air inlet is at least partially oriented towards the low-pressure zone.

[0005] In one embodiment, the fluid conveying component is further provided with an inlet channel and an outlet channel, the inlet port being connected to the inlet end of each branch channel of the branch channel via the inlet channel, and the outlet end of each branch channel of the branch channel being connected to the outlet port via the outlet channel.

[0006] In one embodiment, the flow cross-sectional area of ​​the inlet and the minimum flow cross-sectional area of ​​the inlet channel are greater than the sum of the flow cross-sectional areas of the inlet ends of each branch channel of the diversion channel.

[0007] And / or, the flow cross-sectional area of ​​the liquid outlet and the minimum flow cross-sectional area of ​​the liquid outlet channel are greater than the sum of the flow cross-sectional areas of the outlet ends of each branch channel of the diversion channel.

[0008] In one embodiment, the first branch channel is a variable diameter channel, and the low-pressure zone is formed at the narrowest part of the first branch channel when fluid passes through it;

[0009] Alternatively, the first branch channel is a vortex channel, and when fluid passes through, the low-pressure zone is formed at the center of the vortex in the first branch channel;

[0010] And / or, the second branch channel is a straight channel.

[0011] In one embodiment, the first branch channel includes a converging section, a throat, and a diffusing section arranged and connected from the liquid inlet toward the liquid outlet. The wide end of the converging section is connected to the liquid inlet, the wide end of the diffusing section is connected to the liquid outlet, and the air inlet is directed toward the throat.

[0012] In one embodiment, the length of the tapered section is not less than 2 mm and not more than 4 mm;

[0013] And / or, the length of the throat is not less than 1 mm and not more than 2 mm;

[0014] And / or, the expansion angle of the gradually expanding segment is not less than 5° and not greater than 10°.

[0015] In one embodiment, the second branch channel is at least partially arranged around the periphery of the first branch channel;

[0016] Alternatively, multiple second branch channels may be arranged at circumferential intervals along the first branch channel, with the first branch channel located within the area enclosed by the multiple second branch channels.

[0017] In one embodiment, the first branch channel and the second branch channel extend coaxially and are nested within each other.

[0018] In one embodiment, the second branch channel is arranged around the periphery of the first branch channel, and the fluid conveying component is further provided with an air inlet. The air inlet passes through the second branch channel and is connected to the first branch channel via the air inlet. The air inlet is not connected to the second branch channel.

[0019] In one embodiment, the fluid transport member includes:

[0020] The liquid inlet section is provided with the liquid inlet port and the liquid inlet flow channel;

[0021] A diversion section is located on the side of the liquid inlet section away from the liquid inlet. The diversion section includes a diversion channel and an air inlet. The liquid inlet connects to the inlet ends of each branch channel of the diversion channel via the liquid inlet channel. One end of the air inlet penetrates the inner wall of the first branch channel to form the air inlet, and the other end penetrates the surface of the diversion section to form a through-hole.

[0022] The liquid outlet is located at the end of the diversion section away from the liquid inlet section. The liquid outlet is provided with the liquid outlet and the liquid outlet channel. The outlet ends of each branch channel of the diversion channel are connected to the liquid outlet via the liquid outlet channel.

[0023] In one embodiment, the air inlet has a first segment and a second segment arranged and connected from the through opening toward the air inlet, wherein the inner diameter of the first segment is larger than the inner diameter of the second segment.

[0024] In one embodiment, the fluid transport member includes:

[0025] The inlet pipe has the inlet port;

[0026] The liquid outlet pipe has the liquid outlet;

[0027] A first branch pipe has an air inlet and a first branch channel, and its two ends are respectively connected to the liquid inlet pipe and the liquid outlet pipe; and

[0028] The second branch pipe has the second branch channel, and the two ends of the second branch pipe are respectively connected to the inlet pipe and the outlet pipe.

[0029] In one embodiment, the fluid conveying component is further provided with a liquid inlet channel, the liquid inlet being connected to the inlet end of each branch channel of the diversion channel via the liquid inlet channel, the liquid outlet including a plurality of independent sub-liquid outlets, and the outlet end of each branch channel of the diversion channel being connected one-to-one to the sub-liquid outlet.

[0030] The present invention also proposes a microbubble generating system, comprising:

[0031] The fluid transport component as described above;

[0032] A dissolved gas tank, the dissolved gas tank being connected to the outlet of the fluid conveying component; and

[0033] A bubbler is connected to the output port of the dissolved gas tank. The bubbler is used to precipitate microbubbles in the dissolved gas liquid transported by the dissolved gas tank to form a microbubble liquid.

[0034] In one embodiment, the bubbler has a plurality of fluid channels arranged in parallel, the plurality of fluid channels including a first channel and a second channel;

[0035] Both the first channel and the second channel are configured as Venturi channels, and the throat diameter of the first channel is smaller than that of the second channel.

[0036] Alternatively, the first channel can be configured as a Venturi channel, and the second channel can be configured as a through channel.

[0037] In one embodiment, the microbubble generating system further includes an air pump connected to the air inlet of the fluid delivery component for injecting gas into the first branch channel.

[0038] The present invention also proposes a water heater, comprising:

[0039] The heat exchange system has an outlet pipe; and

[0040] In the microbubble generating system described above, the water outlet pipe is connected to the liquid inlet of the fluid conveying component.

[0041] The technical solution of this invention involves a fluid conveying component with a diversion channel connecting an inlet and an outlet. This diversion channel has at least a first branch channel and a second branch channel arranged in parallel. The outlet of the fluid conveying component can be connected to the inner cavity of a dissolved gas tank. Liquid from an external pipeline enters the fluid conveying component through the inlet, is then diverted by the first and second branch channels, and finally delivered to the dissolved gas tank through the outlet. Because the first branch channel is configured to create a low-pressure zone when fluid passes through it, and the inlet is at least partially oriented towards this low-pressure zone, the injection pressure at the inlet is reduced, making it easier for external gas to enter the first branch channel, thus improving the dissolved gas effect. Simultaneously, because the second branch channel continuously delivers liquid, the liquid flow rate output by the fluid conveying component does not drop abruptly, which helps maintain a large liquid flow rate, thereby meeting high flow rate requirements. In this way, the difficulty of injection is reduced, the dissolved gas effect is improved, and a high flow rate output is guaranteed. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0043] Figure 1 A schematic diagram of the structure of the first embodiment of the fluid transport component provided by the present invention;

[0044] Figure 2 for Figure 1 Axial orthographic projection view of the fluid transport component;

[0045] Figure 3 for Figure 1 A schematic cross-sectional view of a medium-fluid transport component;

[0046] Figure 4 for Figure 1 Another cross-sectional view of the fluid transport component;

[0047] Figure 5 A schematic diagram of the structure of the second embodiment of the fluid transport component provided by the present invention;

[0048] Figure 6 for Figure 5 Axial orthographic projection view of the fluid transport component;

[0049] Figure 7 for Figure 5 A schematic cross-sectional view of a medium-fluid transport component;

[0050] Figure 8 This is a schematic diagram of the structure of the third embodiment of the fluid transport component provided by the present invention;

[0051] Figure 9 A schematic diagram illustrating the interaction between the fluid transport component and the dissolved gas tank according to the fourth embodiment of the present invention;

[0052] Figure 10 A schematic diagram of the structure of an embodiment of the water heater provided by the present invention;

[0053] Figure 11 This is a schematic diagram of the structure of the first embodiment of the bubbler provided by the present invention;

[0054] Figure 12 for Figure 11 Axial orthographic projection view of the bubbler;

[0055] Figure 13 for Figure 11 Schematic diagram of the cross-sectional structure of the intermediate aerator;

[0056] Figure 14 This is a schematic diagram of the structure of the second embodiment of the bubbler provided by the present invention;

[0057] Figure 15 for Figure 14 Axial orthographic projection view of the bubbler;

[0058] Figure 16 for Figure 14 Schematic diagram of the cross-sectional structure of the intermediate aerator;

[0059] Figure 17 This is a schematic diagram of the structure of the third embodiment of the bubbler provided by the present invention;

[0060] Figure 18 for Figure 17 A cross-sectional structural diagram of the bubbler.

[0061] Explanation of icon numbers:

[0062] 1000, Water heater; 100, Microbubble generation system; 200, Heat exchange system; 300, Booster pump;

[0063] 10. Fluid transport component; 101. Liquid inlet; 102. Flow branch channel; 102a. First branch channel; 1021. Gradient section; 1022. Throat; 1023. Gradient expansion section; 1024. First guide section; 1025. Second guide section; 102b. Second branch channel; 103. Liquid outlet; 104. Liquid inlet channel; 105. Liquid outlet channel; 106. Air inlet; 106a. First hole section; 106b. Second hole section; 1061. Air inlet; 1062. Through port; 1063. First connecting part; 11. Liquid inlet part; 111. Second connecting part; 12. Flow branch part; 13. Liquid outlet part; 131. Third connecting part; 14. Liquid inlet pipe; 15. Liquid outlet pipe; 16. First branch pipe; 17. Second branch pipe;

[0064] 20. Dissolved gas tank;

[0065] 30. Aerator; 301. Fluid channel; 301a. First channel; 301b. Second channel; 31. Baffle; 32. Bubble breaking component; 33. Pipe body; 331. First pipe section; 3311. Liquid inlet port; 3312. Liquid inlet channel; 3313. External thread; 332. Second pipe section; 333. Third pipe section; 3331. Liquid outlet channel; 3332. Liquid outlet port; 34. Aerator;

[0066] 40. Air pump;

[0067] 50. Infusion tubing.

[0068] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0069] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0070] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0071] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0072] In related technologies, some water-using devices with microbubble functions (such as water heaters, washing machines, and shower equipment) typically have a dissolved air tank in their water system. Gas and liquid are mixed in the dissolved air tank before being output to the user. Currently, most solutions directly pump air into the dissolved air tank using an air pump. This requires a high sealing pressure from the air pump; if the inlet pressure is too high, the air pump cannot pump air into the dissolved air tank, resulting in a significant decrease in the dissolved air effect. Some solutions employ a water flow cutoff method to allow air to be pumped into the dissolved air tank, i.e., closing the inlet water flow cutoff valve during air pumping. This causes a brief, sudden decrease in water flow, which recovers after a few seconds, resulting in unstable water flow output and noticeable fluctuations in water flow, negatively impacting the user experience.

[0073] In view of the above problems, the present invention proposes a fluid conveying component 10, which can be used to convey liquid and gas to a dissolved gas tank 20. The fluid conveying component 10 can reduce the difficulty of gas injection, improve the dissolved gas effect, and also achieve a large flow rate output.

[0074] Please see Figure 1 , Figure 3 , Figure 5 and Figure 7 In some embodiments of the present invention, the fluid transport member 10 has an inlet 101, a diversion channel 102 and an outlet 103 connected in sequence. The diversion channel 102 includes at least a first branch channel 102a and a second branch channel 102b arranged in parallel. The channel wall of the first branch channel 102a is provided with an air inlet 1061 for introducing external gas. The first branch channel 102a is configured to generate a low-pressure zone in the first branch channel 102a when fluid passes through it. The air inlet 1061 is at least partially oriented towards the low-pressure zone.

[0075] like Figure 10As shown, the fluid delivery component 10 can be applied to water-using devices with microbubble functionality, including but not limited to water heaters 1000, cleaning machines, and shower equipment. The water-using device has a microbubble generating system 100, which includes a liquid flow pipeline and a dissolved air tank 20 located on the liquid flow pipeline. The outlet 103 of the fluid delivery component 10 is connected to the dissolved air tank 20. The outlet of the dissolved air tank 20 can be connected to the user's water supply end (e.g., a shower head) via a liquid delivery pipeline 50 and an aerator 30. The aerator 30 precipitates microbubbles from the dissolved air liquid delivered by the dissolved air tank 20 to form microbubble liquid, thereby providing microbubble liquid to the user's water supply end. The outlet 103 of the fluid delivery component 10 can be directly connected to the dissolved air tank 20 or indirectly connected via a pipeline. The fluid delivery component 10 can be located inside or outside the dissolved air tank 20; no specific limitation is made here.

[0076] When the fluid transport component 10 is applied in the microbubble generating system 100, liquid (e.g., water or cleaning fluid) from an external pipeline enters the fluid transport component 10 through the inlet 101, and is then divided by the diversion channel 102. A portion of the liquid flows to the dissolved gas tank 20 via the first branch channel 102a, and the other portion flows to the dissolved gas tank 20 via the second branch channel 102b. The first branch channel 102a has an inlet 1061 for introducing external gas. Thus, an external gas source can supply gas to the first branch channel 102a through the inlet 1061, and the gas is transported to the dissolved gas tank 20 along with the liquid in the first branch channel 102a. Liquid is continuously supplied to the dissolved gas tank 20 through the second branch channel 102b. The gas and liquid supplied by the first branch channel 102a and the liquid supplied by the second branch channel 102b are thoroughly mixed in the dissolved gas tank 20 to obtain a dissolved gas liquid containing a large amount of dissolved gas.

[0077] The first branch channel 102a is constructed to create a low-pressure zone when fluid passes through it. The air inlet 1061 faces this low-pressure zone, thus reducing the injection pressure and making it easier for external gas to enter the first branch channel 102a, thereby reducing the difficulty of injecting gas into it. For example, the first branch channel 102a can be designed as a variable-diameter channel (e.g., a Venturi channel). According to Bernoulli's principle, when fluid passes through a variable-diameter channel, the flow velocity increases and the static pressure decreases as the channel narrows, creating a low-pressure zone. Alternatively, the first branch channel 102a can also be designed as a swirling channel. When fluid passes through a swirling channel, the pressure in the high-speed rotating region (e.g., the center of the swirling flow) decreases, forming a low-pressure zone, while the pressure at the outer edge is higher. Of course, the first branch channel 102a can also be designed as other irregularly shaped channels, which are not specifically limited here. The second branch channel 102b includes, but is not limited to, a straight-through channel of equal diameter, a variable-diameter channel, a curved channel, etc., and its channel shape is not specifically limited. In addition, the number of the first branch channel 102a and the second branch channel 102b can be one, two, or more, and is not specifically limited here. The first branch channel 102a and the second branch channel 102b can be coaxially arranged (for example, a sleeve structure can be adopted, so that the first branch channel 102a is arranged around the second branch channel 102b, or the second branch channel 102b is arranged around the first branch channel 102a), or they can be arranged non-coaxially (for example, the first branch channel 102a and the second branch channel 102b extend in parallel, or have a certain inclination angle); the first branch channel 102a and the second branch channel 102b can be integrated on the same component (for example, the first branch channel 102a and the second branch channel 102b are integrated on the diversion section 12), or they can be arranged on different components (for example, the first branch channel 102a is formed in the first diversion pipe 16, and the second branch channel 102b is formed in the second diversion pipe 17), without specific limitations here.

[0078] In practical applications, air can be pumped into the first branch channel 102a through the air inlet 1061 by the air pump 40. Since the air inlet 1061 is at least partially facing the low-pressure area of ​​the first branch channel 102a, the air injection pressure of the air inlet 1061 is relatively small, and the air pump 40 can more easily pump the gas into the first branch channel 102a. Correspondingly, the performance requirements of the air pump 40 are lower.

[0079] The technical solution of this invention involves a fluid conveying component 10, which has a branch channel 102 connecting the inlet 101 and the outlet 103. The branch channel 102 has at least a first branch channel 102a and a second branch channel 102b arranged in parallel. Since the first branch channel 102a is configured to generate a low-pressure zone when fluid passes through it, and the air inlet 1061 is at least partially oriented towards this low-pressure zone, the injection pressure of the air inlet 1061 is reduced, making it easier for external gas to enter the first branch channel 102a, thus improving the dissolved gas effect. Simultaneously, because the second branch channel 102b continuously delivers liquid, the liquid flow rate output by the fluid conveying component 10 does not drop abruptly, which helps maintain a large liquid flow rate, thereby meeting high flow rate requirements. In this way, the difficulty of injection is reduced, the dissolved gas effect is improved, and a large flow rate output is guaranteed.

[0080] The outlet 103 of the fluid transport component 10 can be connected to the inner cavity of the dissolved gas tank 20. Liquid in the external pipeline enters the fluid transport component 10 through the inlet 101, and is then diverted by the first branch channel 102a and the second branch channel 102b of the diversion channel 102 before being transported to the dissolved gas tank 20 through the outlet 103.

[0081] Compared to existing technologies that directly pump air into the dissolved gas tank using an air pump, and those that intermittently close the water flow shut-off valve to improve the pumping effect, the present invention delivers gas and liquid into the dissolved gas tank 20 via a fluid conveying component 10. Since the fluid conveying component 10 has a first branch channel 102a and a second branch channel 102b connected in parallel, the first branch channel 102a is configured to generate a low-pressure zone when fluid passes through it. The air inlet 1061 is at least partially oriented towards this low-pressure zone, thus reducing the injection pressure at the air inlet 1061. The reduced gas injection difficulty allows external gas to more easily enter the first branch channel 102a, which then transports the gas to the dissolved gas tank 20. This allows more gas to enter the dissolved gas tank 20, improving the dissolved gas effect and solving the problem of excessive pressure preventing gas injection when directly pumping gas into the dissolved gas tank 20. On the other hand, the second branch channel 102b continuously supplies liquid to the dissolved gas tank 20, increasing the liquid inflow and ensuring a consistent liquid outflow, enabling high-flow-rate liquid delivery to downstream pipelines. Furthermore, the absence of intermittent closure of the water flow shut-off valve during gas injection prevents sudden drops in liquid flow, ensuring stable liquid flow and continuous, stable high-flow-rate output.

[0082] In addition, some related technologies include a water inlet pipe at the inlet of the dissolved gas tank. This water inlet pipe is constructed as a single reducing pipe (e.g., a Venturi tube), with a suction pipe located at or near the minimum diameter of the reducing pipe. Gas is then drawn into the dissolved gas tank via the suction pipe and the water inlet pipe. This approach uses a single reducing pipe to supply both gas and liquid to the dissolved gas tank. According to Bernoulli's equation, when liquid flows through the narrowest part of the reducing pipe (e.g., the throat of a Venturi tube), the flow velocity is inversely proportional to the cross-sectional area. The smaller the cross-sectional area at the narrowest point, the higher the flow velocity and the lower the local pressure, thus creating a stronger vacuum and promoting gas intake. Therefore, to improve suction capacity, the narrowest part of the reducing pipe needs to be designed to be very small. However, if the narrowest part is too small, it will restrict flow and cause a significant increase in liquid flow resistance, reducing the liquid flow rate and affecting the liquid delivery capacity. Therefore, it is impossible to simultaneously achieve good gas intake and high-flow-rate liquid delivery.

[0083] Compared to the above-mentioned solution of using a self-priming variable diameter pipe to introduce air into the dissolved gas tank, the fluid conveying component 10 of the present invention has a first branch channel 102a and a second branch channel 102b connected in parallel. On the one hand, the first branch channel 102a is configured to generate a low-pressure zone when fluid passes through it, and the air inlet 1061 is at least partially oriented towards the low-pressure zone. This reduces the injection pressure of the air inlet 1061, reduces the difficulty of injection, and makes it easier for external gas to enter the first branch channel 102a. On the other hand, the second branch channel 102b can continuously deliver liquid to ensure a large flow rate output. Furthermore, since the second branch channel 102b is used for flow, when the first branch channel 102a is constructed as a variable diameter channel, the narrowest part of the first branch channel 102a can be designed to be smaller, which is more conducive to reducing the injection pressure and improving the air intake effect. Thus, by having the first branch channel 102a and the second branch channel 102b designed in parallel, the contradiction between the air intake capacity and the liquid delivery capacity of the traditional single intake reducer can be well balanced, and the requirements of good air intake effect and large flow rate liquid delivery can be met at the same time.

[0084] like Figure 3 and Figure 8 As shown, in some embodiments, the fluid conveying member 10 is further provided with an inlet channel 104 and an outlet channel 105. The inlet port 101 is connected to the inlet end of each branch channel of the branch channel 102 via the inlet channel 104, and the outlet end of each branch channel of the branch channel 102 is connected to the outlet port 103 via the outlet channel 105.

[0085] In this embodiment, liquid enters the inlet channel 104 through the inlet 101, and then is branched into various branch channels (e.g., the first branch channel 102a and the second branch channel 102b) of the branch channel 102. These branch channels then converge in the outlet channel 105 and flow out through the outlet 103, thus forming a general inlet, branch, and outlet channel structure. This channel design is compact and has relatively low flow resistance. It also facilitates the installation of flow sensors or temperature sensors in the inlet channel 104 or the outlet channel 105 to monitor the liquid flow rate or temperature.

[0086] In order to ensure high-volume input, such as Figure 3 As shown, in one embodiment, the flow cross-sectional area of ​​the inlet 101 and the minimum flow cross-sectional area of ​​the inlet channel 104 are greater than the sum of the flow cross-sectional areas of the inlet ends of each branch channel of the branch channel 102.

[0087] The flow cross-sectional area of ​​the inlet 101 refers to the effective area of ​​the cross-section perpendicular to the flow direction through which the fluid can pass when it passes through the inlet 101. The flow cross-sectional area of ​​the inlet channel 104 refers to the effective area of ​​the cross-section perpendicular to the flow direction through which the fluid can pass when it passes through the inlet channel 104. When the inlet channel 104 is a constant-diameter channel, the flow cross-sectional area of ​​each part is the same, that is, the minimum flow cross-sectional area and the maximum flow cross-sectional area are the same. When the inlet channel 104 is a variable-diameter channel, the minimum flow cross-sectional area of ​​the inlet channel 104 is the flow cross-sectional area of ​​its narrowest part. The flow cross-sectional area of ​​the inlet end of each branch channel of the branch channel 102 refers to the effective cross-sectional area of ​​the cross-section perpendicular to the flow direction through which the fluid can pass when it passes through the inlet end of each branch channel. The sum of the flow cross-sectional areas at the inlet ends of each branch channel of the diversion channel 102 refers to the total flow cross-sectional area obtained by adding the flow cross-sectional areas at the inlet ends of all branch channels.

[0088] In this embodiment, the flow cross-sectional area of ​​the inlet 101 and the minimum flow cross-sectional area of ​​the inlet channel 104 are greater than the sum of the flow cross-sectional areas of the inlet ends of each branch channel of the branch channel 102. This allows liquid in the external pipeline to be transported to the branch channel 102 with a larger flow rate through the inlet 101 and the inlet channel 104, without flow restriction occurring at the inlet 101 and the inlet channel 104. Furthermore, since the minimum flow cross-sectional area of ​​the inlet channel 104 is greater than the sum of the inlet cross-sectional areas of each branch channel of the branch channel 102, the minimum flow cross-sectional area of ​​the inlet channel 104 is greater than the inlet cross-sectional area of ​​the first branch channel 102a. Thus, when the fluid enters the first branch channel 102a through the inlet channel 104, the fluid velocity increases due to the narrowing of the first branch channel 102a. According to Bernoulli's principle, the increased velocity leads to a decrease in static pressure, which further reduces the pressure in the first branch channel 102a. This makes it more conducive to injecting gas into the first branch channel 102a, thereby further improving the dissolved gas effect.

[0089] In order to ensure a large flow rate output, in one embodiment, the flow cross-sectional area of ​​the outlet 103 and the minimum flow cross-sectional area of ​​the outlet channel 105 are greater than the sum of the flow cross-sectional areas of the outlet ends of each branch channel of the diversion channel 102.

[0090] The flow cross-sectional area of ​​the outlet 103 refers to the effective area of ​​the cross-section perpendicular to the flow direction through which the fluid can pass when it passes through the outlet 103. The flow cross-sectional area of ​​the outlet channel 105 refers to the effective area of ​​the cross-section perpendicular to the flow direction through which the fluid can pass when it passes through the outlet channel 105. When the outlet channel 105 is a constant-diameter channel, the flow cross-sectional area of ​​each part is the same, that is, the minimum flow cross-sectional area and the maximum flow cross-sectional area are the same. When the outlet channel 105 is a variable-diameter channel, the minimum flow cross-sectional area of ​​the outlet channel 105 is the flow cross-sectional area of ​​its narrowest part. The flow cross-sectional area of ​​the outlet end of each branch channel of the branch channel 102 refers to the effective cross-sectional area of ​​the cross-section perpendicular to the flow direction through which the fluid can pass when it passes through the outlet end of each branch channel. The sum of the flow cross-sectional areas at the outlet ends of each branch channel of the diversion channel 102 refers to the total flow cross-sectional area obtained by adding the flow cross-sectional areas at the outlet ends of all branch channels.

[0091] In this embodiment, the flow cross-sectional area of ​​the outlet 103 and the minimum flow cross-sectional area of ​​the outlet channel 105 are greater than the sum of the flow cross-sectional areas at the inlet ends of each branch channel of the diversion channel 102. Thus, the liquid output from each branch channel of the diversion channel 102 flows into the outlet channel 105 and is then output from the outlet 103. The relatively large flow cross-sectional areas of the outlet channel 105 and the outlet 103 prevent flow restriction, ensuring a large flow rate output.

[0092] Optionally, such as Figure 3 As shown, the fluid conveying component 10 also includes an inlet channel 104 and an outlet channel 105. The inlet port 101 is connected to the inlet end of each branch channel of the diversion channel 102 via the inlet channel 104, and the outlet end of each branch channel of the diversion channel 102 is connected to the outlet port 103 via the outlet channel 105. The flow cross-sectional area of ​​the outlet port 103 and the minimum flow cross-sectional area of ​​the outlet channel 105 are greater than the sum of the flow cross-sectional areas of the outlet ends of each branch channel of the diversion channel 102. In this way, it can be ensured that a large flow rate is input into the inlet channel 104, diverted through the diversion channel 102, and then merged into a large flow rate output through the outlet channel 105, so that the flow channel input and output remain substantially unchanged, realizing large flow rate input and output.

[0093] Optionally, such as Figure 4 As shown, the inner diameter of the inlet channel 104 is larger than that of the first branch channel 102a, and the inner diameter of the outlet channel 105 is also larger than that of the first branch channel 102a. This results in the inlet channel 104, the first branch channel 102a, and the outlet channel 105 forming a Venturi-like channel structure. The inner diameter of the first branch channel 102a is relatively small, increasing the flow velocity and decreasing the pressure of the liquid entering it, thus facilitating gas injection into the first branch channel 102a. Optionally, the first branch channel 102a can be a Venturi channel, reducing the pressure at its narrowing section and further decreasing the gas injection pressure. Optionally, both the inlet channel 104 and the outlet channel 105 can be straight-through channels of equal diameter, resulting in a simple structure and low fluid resistance.

[0094] The first branch channel 102a has multiple structural forms.

[0095] In one embodiment, the first branch channel 102a is a variable diameter channel, and a low-pressure zone is formed at the narrowest part of the first branch channel 102a when fluid passes through it. A variable diameter channel is a channel whose cross-sectional area changes along the flow direction (such as narrowing, widening, or step change). A variable diameter channel can form a low-pressure zone by changing the flow velocity (Bernoulli effect) or inducing flow separation.

[0096] In another embodiment, the first branch channel 102a is a vortex channel, and a low-pressure zone is formed at the center of the vortex when fluid passes through it. The vortex channel allows the fluid to generate rotational motion (swirling) during flow; the fluid not only flows axially but also has a significant circumferential (tangential) velocity, forming a spiral trajectory. Under the action of centrifugal force, the rotating fluid generates a central low-pressure zone and a peripheral high-pressure zone.

[0097] like Figure 3 and Figure 7As shown, in some embodiments, the second branch channel 102b is a straight-through channel. A straight-through channel refers to a straight pipe structure without contraction or expansion, meaning the cross-sectional area of ​​the fluid remains constant during flow. Designing the second branch channel 102b as a straight-through channel simplifies the channel structure, reduces fluid transport resistance, and makes fluid transport more stable. Optionally, the first branch channel 102a is a Venturi channel, and the second branch channel 102b is a straight-through channel. The second branch channel 102b extends in parallel with the first branch channel 102a, meaning the axis of the second branch channel 102b can be parallel to or at a certain angle to the axis of the first branch channel 102a, as long as the extension directions of the second branch channel 102b and the first branch channel 102a are approximately the same (both extending from the inlet 101 towards the outlet 103).

[0098] like Figure 4 As shown, in one embodiment, the first branch channel 102a includes a converging section 1021, a throat 1022, and a expanding section 1023 arranged and connected from the liquid inlet 101 toward the liquid outlet 103. The wide end of the converging section 1021 is connected to the liquid inlet 101, the wide end of the expanding section 1023 is connected to the liquid outlet 103, and the air inlet 1061 faces the throat 1022.

[0099] In this embodiment, the first branch channel 102a is constructed as a Venturi channel, with its throat 1022 being the narrowest part of the Venturi channel. When fluid passes through, a low-pressure zone is generated in the throat 1022. The air inlet 1061 faces the throat 1022 to facilitate pressure reduction and gas injection. It is understandable that a single Venturi channel cannot simultaneously satisfy both the pressure reduction effect at the throat 1022 and the high flow rate. The smaller the diameter of the throat 1022, the better the pressure reduction effect, but the lower the flow rate through the throat 1022. However, in this solution, since the first branch channel 102a and the second branch channel 102b are connected in parallel, and the high flow rate is satisfied through the second branch channel 102b, the throat 1022 of the first branch channel 102a can be designed to be very small to achieve a better pressure reduction effect and further enhance the gas injection performance, thereby better balancing the pressure reduction and gas injection effect with the high flow rate requirement.

[0100] It is worth noting that the throat 1022 can be the interface where the converging section 1021 and the expanding section 1023 connect, or the throat 1022 can be a throat tube of a certain length extending from the converging section 1021 toward the expanding section 1023.

[0101] When the converging section 1021 and the expanding section 1023 are directly connected, the part where the converging section 1021 and the expanding section 1023 are connected forms the throat 1022. At this time, the air inlet 1061 can be opened at the connection part of the converging section 1021 and the expanding section 1023; or the air inlet 1061 can be opened at the position of the converging section 1021 near the throat 1022; or the air inlet 1061 can be opened at the position of the expanding section 1023 near the throat 1022. As long as at least part of the air inlet 1061 faces the low-pressure area, it is acceptable.

[0102] When the converging section 1021 and the expanding section 1023 are connected by a throat tube, the throat tube forms a throat 1022. At this time, the air inlet 1061 can be located at any position in the throat tube; or the air inlet 1061 can be located at the connection between the converging section 1021 and the throat tube; or the air inlet 1061 can be located at the connection between the expanding section 1023 and the throat tube; or the air inlet 1061 can be located near the throat tube in the converging section 1021; or the air inlet 1061 can be located near the throat tube in the expanding section 1023. As long as at least part of the air inlet 1061 faces the low-pressure area, it is acceptable.

[0103] For an intake Venturi channel, if the length of its convergent section 1021 is too short, the airflow cannot fully adapt to the channel shape change due to the rapid contraction of the cross-section, easily leading to flow separation near the wall. This separation results in enhanced eddies and turbulence, increased pressure loss, and reduced intake efficiency. The Venturi effect relies on the gradual acceleration of the convergent section to form a stable low-pressure zone (for intake). If the length is too short, the low-pressure zone may not develop sufficiently, leading to insufficient intake or discontinuous intake. If the length of the convergent section is too long, it may increase the contact area between the airflow and the wall, resulting in a significant increase in viscous friction loss (friction loss), reducing total pressure recovery efficiency, and potentially weakening intake dynamics.

[0104] Optionally, the length of the tapered section 1021 is not less than 2 mm and not more than 4 mm. This ensures that the length of the tapered section 1021 is moderate, avoiding excessive pressure loss due to the abrupt contraction of the cross-section preventing the airflow from fully adapting to the change in flow channel shape, thus guaranteeing intake efficiency. Simultaneously, it mitigates the problem of insufficient intake power caused by an excessively long tapered section 1021. For example, the length of the tapered section 1021 can be 2 mm, 3 mm, 4 mm, or any other value within the range of 2 mm to 4 mm.

[0105] The throat 1022 is the region with the lowest static pressure in the Venturi channel. If the throat 1022 is too short, the low-pressure zone will not exist for long enough, and the negative pressure duration at the inlet 1061 will be reduced, which may result in insufficient gas intake. If the throat 1022 is too long, it will prolong the contact between the fluid and the wall, significantly increasing frictional losses and reducing intake efficiency.

[0106] Optionally, the length of the throat 1022 is not less than 1 mm and not more than 2 mm. This makes the length of the throat 1022 moderate, which is conducive to maintaining a stable low-pressure zone, fully inhaling gas, and minimizing friction loss, thereby improving inhalation efficiency.

[0107] The expansion angle of the diffuser 1023 is the angle between the two side walls of the diffuser 1023. If the expansion angle of the diffuser 1023 is too small, it will increase frictional losses, resulting in increased frictional resistance. If the expansion angle of the diffuser 1023 is too large, it will increase the risk of flow separation and reduce intake efficiency.

[0108] Optionally, the expansion angle of the diffuser 1023 is not less than 5° and not more than 10°. This makes the expansion angle of the diffuser 1023 moderate, which helps to reduce friction loss and flow resistance, and ensures intake efficiency. For example, the expansion angle of the diffuser 1023 can be 5°, 6°, 7°, 8°, 9°, 10°, or any other value between 5° and 10°.

[0109] Optionally, the length of the tapering section 1021 is not less than 2 mm and not more than 4 mm; the length of the throat 1022 is not less than 1 mm and not more than 2 mm; and the expansion angle of the expanding section 1023 is not less than 5° and not more than 10°. This makes the overall structural dimensions of the first branch channel 102a more reasonable, effectively improving the intake efficiency and minimizing friction loss and flow resistance.

[0110] Optionally, such as Figure 4 As shown, in the direction from the inlet 101 to the outlet 103, the length of the contraction section 1021 is shorter than the length of the expansion section 1023. The fluid accelerates in the contraction section 1021, increasing its velocity and decreasing its pressure (Bernoulli effect). Driven by the pressure gradient, the fluid naturally flows towards the low-pressure region, making separation less likely. Therefore, the contraction section 1021 can be designed to be shorter. The fluid decelerates in the expansion section 1023, converting kinetic energy into pressure energy (pressure recovery). Decelerated flow is more prone to separation. A longer expansion section 1023 can reduce the expansion angle, allowing the fluid to decelerate slowly and preventing separation.

[0111] like Figure 4 As shown, in one embodiment, the first branch channel 102a further includes a first guide section 1024 extending from the wide end of the converging section 1021 toward the inlet 101. The first guide section 1024 can be designed as a straight-through channel of equal diameter, and the flow cross-sectional area of ​​the first guide section 1024 is the same as the flow cross-sectional area of ​​the wide end of the converging section 1021. Through the first guide section 1024, the liquid in the inlet channel 104 can be guided more smoothly into the converging section 1021, ensuring sufficient development of the inlet flow and making measurement or flow control more accurate.

[0112] like Figure 4As shown, in one embodiment, the first branch channel 102a further includes a second guide section 1025 extending from the wide end of the diffuser section 1023 toward the outlet 103. The second guide section 1025 can be designed as a straight-through channel with a constant diameter, and the flow cross-sectional area of ​​the second guide section 1025 is the same as the flow cross-sectional area of ​​the wide end of the diffuser section 1023. The second guide section 1025 can guide the liquid in the diffuser section 1023 to the outlet channel 105 more smoothly, ensuring that the fluid can stably recover its pressure after flowing out of the diffuser section 1023, reducing flow disturbance, and optimizing overall performance.

[0113] There are multiple arrangements for the first branch channel 102a and the second branch channel 102b.

[0114] In one embodiment, the second branch channel 102b is at least partially arranged around the periphery of the first branch channel 102a. For example, the cross-section of the second branch channel 102b may be annular, such that the second branch channel 102b is arranged around the periphery of the first branch channel 102a. As another example, the cross-section of the second branch channel 102b may be arc-shaped, such that the second branch channel 102b is partially arranged around the periphery of the first branch channel 102a. Yet another example, the second branch channel 102b may extend spirally along the axial direction of the first branch channel 102a and be fitted around the periphery of the first branch channel 102a.

[0115] like Figure 2 and Figure 6 As shown, in some embodiments, multiple second branch channels 102b are arranged circumferentially along the first branch channel 102a, and the first branch channel 102a is located within the area enclosed by the multiple second branch channels 102b. By providing multiple second branch channels 102b, it is beneficial to further increase the liquid flow rate to better meet the demand for large flow rates. Furthermore, while ensuring that the overall flow rate remains unchanged, replacing a single second branch channel 102b with multiple independent and spaced second branch channels 102b makes the flow cross-sectional size of each second branch channel 102b relatively small. This avoids the second branch channel 102b having an excessively large flow cross-sectional size, resulting in insufficient resistance, and avoids the resistance difference between the first branch channel 102a and the second branch channel 102b being too large, resulting in uneven flow distribution. This ensures that the liquid can enter the first branch channel 102a and the second branch channel 102b more evenly.

[0116] The number of second branch channels 102b can be two, three, or more. The cross-sectional shape of the second branch channels 102b includes, but is not limited to, circular, elliptical, arc-shaped, square, or other irregular cross-sections. When multiple second branch channels 102b are provided, the cross-sectional shapes of the multiple second branch channels 102b can be exactly the same or at least partially different, and the cross-sectional areas of the multiple second branch channels 102b can be exactly the same or at least partially different.

[0117] For example, such as Figure 2 As shown, in one embodiment, a set of channels is symmetrically arranged on both radial sides of the first branch channel 102a. Each set of channels includes three second branch channels 102b spaced apart and evenly arranged, and the cross-section of each second branch channel 102b is circular. Figure 6 As shown, in another embodiment, a second branch channel 102b is symmetrically arranged on both radial sides of the first branch channel 102a, and the cross-section of each second branch channel 102b is arranged in an arc shape.

[0118] In the above embodiment, the first branch channel 102a is located in the middle of the fluid conveying member 10. Since the liquid flow velocity is higher in the middle position when the liquid flows in the fluid conveying member 10, the liquid flow velocity in the first branch channel 102a is higher. The increased flow velocity and decreased static pressure result in a relatively low pressure in the first branch channel 102a, which makes it more convenient to inject gas into the first branch channel 102a.

[0119] Of course, the arrangement of the first branch channel 102a and the second branch channel 102b is not limited to the above embodiments. In other embodiments, the first branch channel 102a may be arranged around the second branch channel 102b. Alternatively, multiple first branch channels 102a may be provided, and the second branch channel 102b may be located in the area enclosed by multiple first branch channels 102a.

[0120] In some embodiments, the first branch channel 102a and the second branch channel 102b extend coaxially and are nested within each other. Thus, on a projection plane perpendicular to the axes of the first branch channel 102a and the second branch channel 102b, the first branch channel 102a and the second branch channel 102b are arranged in concentric circles. This makes the channel layout more compact, which helps to reduce the volume of the fluid transport member 10.

[0121] The first branch channel 102a and the second branch channel 102b are nested together. The first branch channel 102a may be nested around the second branch channel 102b, or the second branch channel 102b may be nested around the first branch channel 102a.

[0122] Taking the first branch channel 102a being sleeved around the second branch channel 102b as an example, the first branch channel 102a can be a single channel continuously surrounding the second branch channel 102b, or the first branch channel 102a can include multiple first sub-branch channels arranged circumferentially around the second branch channel 102b. The second branch channel 102b can be a single channel, or it can include multiple second sub-branch channels arranged circumferentially around the second branch channel 102b.

[0123] In practical applications, the fluid conveying component 10 can be designed as a sleeve structure. For example, the fluid conveying component 10 has an inner tube and an outer tube that are nested together. A first branch channel 102a (or a second branch channel 102b) is formed inside the inner tube, and a second branch channel 102b (or a first branch channel 102a) is formed between the outer tube and the inner tube.

[0124] In one embodiment, the second branch channel 102b is arranged around the periphery of the first branch channel 102a. The fluid conveying component 10 is also provided with an air inlet 106. The air inlet 106 passes through the second branch channel 102b and is connected to the first branch channel 102a via an air inlet 1061. The air inlet 106 is not connected to the second branch channel 102b.

[0125] In this embodiment, the second branch channel 102b is arranged around the periphery of the first branch channel 102a, that is, the first branch channel 102a is located in the center. When the liquid flows in the fluid conveying member 10, the liquid velocity at the center is higher, resulting in a higher liquid velocity in the first branch channel 102a. The increased velocity and decreased static pressure make the pressure in the first branch channel 102a relatively low, which is more conducive to injecting gas into the first branch channel 102a. The fluid conveying member 10 has an air inlet 106. One end of the air inlet 106 penetrates the surface of the fluid conveying member 10 for connecting to a gas source, and the other end penetrates the inner wall of the first branch channel 102a to form an air inlet 1061, so that an external gas source can inject gas into the first branch channel 102a through the air inlet 106. The second branch channel 102b is arranged around the first branch channel 102a. The air inlet 106 passes through the second branch channel 102b but is not connected to the second branch channel 102b. Therefore, no gas will be injected into the second branch channel 102b, and the transport of liquid by the second branch channel 102b will not be affected.

[0126] For example, the fluid transport component 10 has an inner tube and an outer tube that are nested together. A first branch channel 102a is formed inside the inner tube, and a second branch channel 102b is formed between the outer tube and the inner tube. The fluid transport component 10 also has an air inlet pipe that passes through the outer tube and communicates with the inner tube. An air inlet hole 106 is formed inside the air inlet pipe, and the pipe wall of the air inlet pipe can separate the air inlet hole 106 from the second branch channel 102b, so that the two are not connected.

[0127] For example, the fluid transport component 10 may include a diversion section 12, which is provided with a first branch channel 102a and a second branch channel 102b. The cross-section of the second branch channel 102b may be a non-closed ring, and the air inlet 106 passes through the non-closed area on the cross-section of the second branch channel 102b to communicate with the first branch channel 102a; or, the second branch channel 102b may include a plurality of second sub-channels, which are spaced around the periphery of the first branch channel 102a, and the air inlet 106 may pass through two adjacent second sub-channels to communicate with the first branch channel 102a.

[0128] There are various specific structural forms of the fluid transport component 10.

[0129] like Figure 3 and Figure 7 As shown, in some embodiments, the fluid transport member 10 includes an inlet section 11, a diverter section 12, and an outlet section 13. The liquid inlet section 11 is provided with a liquid inlet 101 and a liquid inlet channel 104; the diversion section 12 is provided on the side of the liquid inlet section 11 away from the liquid inlet 101, the diversion section 12 is provided with a diversion channel 102 and an air inlet 106, the liquid inlet 101 is connected to the inlet end of each branch channel of the diversion channel 102 via the liquid inlet channel 104, one end of the air inlet 106 penetrates the inner wall of the first branch channel 102a to form an air inlet 1061, and the other end penetrates the surface of the diversion section 12 to form a through port 1062; the liquid outlet section 13 is provided on the end of the diversion section 12 away from the liquid inlet section 11, the liquid outlet section 13 is provided with a liquid outlet 103 and a liquid outlet channel 105, the outlet end of each branch channel of the diversion channel 102 is connected to the liquid outlet 103 via the liquid outlet channel 105.

[0130] In this embodiment, the inlet section 11, the diverter section 12, and the outlet section 13 can be independent components assembled together. Alternatively, the diverter section 12 can be integrally formed with at least one of the inlet section 11 and the outlet section 13. Optionally, the inlet section 11, the diverter section 12, and the outlet section 13 can be integrally formed, which simplifies the manufacturing process, ensures the overall structural strength, and avoids problems such as poor sealing and leakage that can occur with assembled structures. The inlet section 11 and the outlet section 13 are hollow tubular structures, such as circular tubes. One end of the inlet section 11 is provided with an inlet port 101, and an inlet flow channel 104 is formed inside the inlet section 11. One end of the outlet section 13 is provided with an outlet port 103, and an outlet flow channel 105 is formed inside the outlet section 13. One end of the diversion section 12 is connected to the end of the liquid inlet section 11 away from the liquid inlet 101, and the other end of the diversion section 12 is connected to the end of the liquid outlet section 13 away from the liquid outlet 103. Each branch channel of the diversion channel 102 (e.g., the first branch channel 102a and the second branch channel 102b) is integrated onto the diversion section 12, resulting in a more compact overall structure and smaller footprint. This also avoids complex piping structures and simplifies the manufacturing process. For example, multiple parallel channels can be simultaneously constructed on the same component through injection molding to simplify the manufacturing process.

[0131] like Figure 4 As shown, in one embodiment, the air inlet 106 has a first section 106a and a second section 106b arranged and connected from the through opening 1062 toward the air inlet 1061, and the inner diameter of the first section 106a is larger than the inner diameter of the second section 106b.

[0132] In this embodiment, the air inlet 106 has a stepped hole structure. The inner diameter of the first section 106a of the air inlet 106 is relatively large, which is beneficial for connection with external pipelines. For example, the air outlet pipe of the air pump 40 can be inserted into the first section 106a and connected to the first branch channel 102a via the second section 106b. The diameter of the second section 106b is smaller than the diameter of the first section 106a, allowing the gas to enter the first branch channel 102a at a higher flow rate, thereby fully mixing with the liquid in the first branch channel 102a to further improve the dissolved gas effect.

[0133] like Figure 4 As shown, in one embodiment, the inner peripheral wall of the first bore section 106a is provided with a first connecting portion 1063 for connecting a pipeline. This facilitates the connection between the external gas delivery pipeline and the fluid delivery component 10. The first connecting portion 1063 may include, but is not limited to, a threaded, snap-fit, or quick-release structure. Optionally, the first connecting portion 1063 may be an internal thread provided on the inner peripheral wall of the first bore section 106a.

[0134] like Figure 4As shown, in one embodiment, the outer peripheral wall of the liquid inlet 11 is provided with a second connecting portion 111 for connecting a pipeline. This facilitates the connection of an external pipeline to the liquid inlet 11 of the fluid transport component 10. The second connecting portion 111 may include, but is not limited to, a threaded, snap-fit, or quick-release structure. Optionally, the second connecting portion 111 may be an external thread provided on the outer peripheral wall of the liquid inlet 11.

[0135] like Figure 4 As shown, in one embodiment, the outer peripheral wall of the liquid outlet 13 is provided with a third connecting portion 131 for connecting a pipeline. This facilitates the connection of an external pipeline to the liquid outlet 13 of the fluid transport component 10. The third connecting portion 131 may include, but is not limited to, a threaded, snap-fit, or quick-release structure. Optionally, the third connecting portion 131 may be an external thread provided on the outer peripheral wall of the liquid outlet 13.

[0136] Of course, the various branch channels of the branch channel 102 can also be constructed on different components.

[0137] like Figure 8 As shown, in one embodiment, the fluid transport component 10 includes an inlet pipe 14, an outlet pipe 15, a first branch pipe 16, and a second branch pipe 17. The inlet pipe 14 has an inlet port 101; the outlet pipe 15 has an outlet port 103; the first branch pipe 16 has an air inlet port 1061 and a first branch channel 102a, and the two ends of the first branch pipe 16 are respectively connected to the inlet pipe 14 and the outlet pipe 15; the second branch pipe 17 has a second branch channel 102b, and the two ends of the second branch pipe 17 are respectively connected to the inlet pipe 14 and the outlet pipe 15.

[0138] In this embodiment, liquid enters the inlet pipe 14 through the inlet port 101, then flows into the first branch pipe 16 and the second branch pipe 17 respectively, and finally merges in the outlet pipe 15 before being output from the outlet port 103. The first branch pipe 16 can be constructed as a Venturi tube, with an air inlet 1061 at its throat for pressure reduction and air injection. The second branch pipe 17 can be constructed as a straight pipe to achieve a large flow rate output. The number of the first branch pipe 16 and the second branch pipe 17 can be set to one, two, or more as needed. Because the first branch pipe 16 and the second branch pipe 17 are relatively independent, the first branch channel 102a and the second branch channel 102b are also relatively independent. This allows for more precise control of the flow rate and pressure of the two channels by adding more structural components to the independent pipelines. The non-coaxial design of the first branch channel 102a and the second branch channel 102b allows for greater independence, making the flow control of the first branch channel 102a and the second branch channel 102b more precise and flexible.

[0139] In some embodiments, the individual branches of the branch channel 102 may not merge through the outlet channel 105, but may instead independently output fluid.

[0140] For example, such as Figure 9 As shown, in one embodiment, the fluid conveying component 10 is further provided with an inlet channel 104, the inlet port 101 is connected to the inlet end of each branch channel of the diversion channel 102 via the inlet channel 104, and the outlet port 103 includes a plurality of independent sub-outlets, and the outlet end of each branch channel of the diversion channel 102 is connected to the sub-outlet one by one.

[0141] In this embodiment, external liquid enters the inlet channel 104 through the inlet 101, and then flows into various branch channels (e.g., the first branch channel 102a and the second branch channel 102b) of the branch channel 102, and is then output from the sub-outlets of each branch channel. In practical applications, each sub-outlet can be connected to the dissolved gas tank 20. For example, the fluid transport component 10 may include an inlet pipe 14, a first branch pipe 16, and a second branch pipe 17. One end of the inlet pipe 14 is provided with an inlet port 101, and an inlet flow channel 104 is formed inside the inlet pipe 14. The end of the inlet pipe 14 away from the inlet port 101 is connected to the first branch pipe 16 and the second branch pipe 17 respectively. The first branch pipe 16 may be a venturi tube, and a first branch channel 102a is formed inside the first branch pipe 16. An air inlet 1061 is provided on the pipe wall of the first branch pipe 16. A second branch channel 102b is formed inside the second branch pipe 17. A first sub-outlet is provided at the end of the first branch pipe 16 away from the inlet pipe 14, and a second sub-outlet is provided at the end of the second branch pipe 17 away from the inlet pipe 14. The first sub-outlet and the second sub-outlet are respectively connected to the dissolved gas tank 20.

[0142] like Figure 10 As shown, the present invention also proposes a microbubble generating system 100, which includes a fluid conveying component 10, a dissolved gas tank 20, and a bubbler 30. The dissolved gas tank 20 is connected to the outlet 103 of the fluid conveying component 10, and the bubbler 30 is connected to the outlet of the dissolved gas tank 20. The bubbler 30 is used to precipitate microbubbles in the dissolved gas liquid conveyed by the dissolved gas tank 20 to form a microbubble liquid. The specific structure of the fluid conveying component 10 is as described in the above embodiments. Since the microbubble generating system 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0143] In this embodiment, the fluid conveying component 10, the dissolved gas tank 20, and the aerator 30 are connected in series to form a liquid flow path. The inlet 101 of the fluid conveying component 10 can be directly connected to a water source, or it can be connected to the outlet pipe of other water-using equipment (e.g., water heater 1000). The fluid conveying component 10 and the dissolved gas tank 20 can be directly connected or connected through a pipeline, and the dissolved gas tank 20 and the aerator 30 can be directly connected or connected through a pipeline. The output end of the aerator 30 can be connected to the user's water supply end (e.g., shower head, faucet). When microbubble liquid needs to be generated, a gas-liquid mixture can be conveyed into the dissolved gas tank 20 through the first branch channel 102a of the fluid conveying component 10, and liquid can be conveyed into the dissolved gas tank 20 through the second branch channel 102b of the fluid conveying component 10, so that the gas and liquid in the dissolved gas tank 20 are fully mixed to form a dissolved gas liquid. The dissolved gas liquid in the dissolved gas tank 20 is transported to the aerator 30, where microbubbles are precipitated to form a microbubble liquid for output to the user's water supply. Since the fluid conveying component 10 has a first branch channel 102a and a second branch channel 102b arranged in parallel, the first branch channel 102a is configured to generate a low-pressure zone when fluid passes through it. The air inlet 1061 is at least partially oriented towards this low-pressure zone, thus reducing the injection pressure at the air inlet 1061 and allowing external gas to more easily enter the first branch channel 102a, thereby improving the dissolved gas effect. Simultaneously, because the second branch channel 102b continuously delivers liquid, the liquid flow rate output by the fluid conveying component 10 does not drop abruptly, which helps maintain a large liquid flow rate, thereby meeting high flow rate requirements and improving the user experience.

[0144] like Figures 11 to 16 As shown, in some embodiments, the bubbler 30 has a plurality of fluid channels 301 arranged in parallel, the plurality of fluid channels 301 including a first channel 301a for foaming and a second channel 301b for flow passage, the first channel 301a and the second channel 301b having different shapes and / or sizes.

[0145] In this embodiment, the multiple fluid channels 301 of the aerator 30 are not entirely identical. One portion of the fluid channels 301 is a first channel 301a for aeration, while another portion is a second channel 301b for flow passage. Thus, a portion of the dissolved gas liquid transported by the dissolved gas tank 20 passes through the first channel 301a to form a microbubble liquid with a large number of microbubbles, while the other portion is directly output through the second channel 301b. The two forms of liquid mix at the output end of the aerator 30 to form a slightly lower concentration microbubble liquid, which is then delivered to the user's water outlet. Although the concentration of microbubbles decreases, the flow rate increases significantly. When this microbubble generating system 100 is applied to a water heater 1000 or a bathing device, the aerator 30 can output a large flow rate of microbubble liquid to the user's water outlet, which helps improve the user's bathing comfort.

[0146] In related technologies, some bubblers have multiple arrayed Venturi channels, all of which are identical in size, meaning each channel has the same throat diameter. To enhance the foaming effect, the throat diameter of the Venturi channels is typically designed to be small, achieving a greater pressure reduction. However, a smaller throat diameter leads to excessive fluid resistance and lower flow rate. Therefore, traditional bubblers cannot simultaneously achieve both strong foaming performance and high flow rate requirements.

[0147] Based on this, the present invention optimizes the design of the aerator 30 to simultaneously achieve a strong aeration effect and a large flow rate requirement.

[0148] like Figures 11 to 13 As shown, in one embodiment, the bubbler 30 has a plurality of fluid channels 301 arranged in parallel, the plurality of fluid channels 301 including a first channel 301a and a second channel 301b; both the first channel 301a and the second channel 301b are configured as Venturi channels, and the throat diameter of the first channel 301a is smaller than the throat diameter of the second channel 301b.

[0149] In this embodiment, the first channel 301a and the second channel 301b have substantially the same shape, both being Venturi channels, and each having a constriction section, a throat, and an expansion section connected sequentially in the flow direction. The first channel 301a and the second channel 301b extend in parallel, with both ends of the first channel 301a penetrating the two axial end faces of the bubbler 30, and both ends of the second channel 301b penetrating the two axial end faces of the bubbler 30. The throat dimensions of the first channel 301a and the second channel 301b differ. The throat diameter of the first channel 301a is relatively small, which is beneficial for achieving a greater pressure reduction and enhancing the foaming effect. The throat diameter of the second channel 301b is relatively large, which is beneficial for reducing flow resistance and achieving high flow rate delivery. Thus, by designing the dimensions of the first channel 301a and the second channel 301b differently, the channel design is flexible, balancing a strong foaming effect with high flow rate requirements. The number of first channels 301a and the number of second channels 301b can be set to one, two, or more, depending on actual needs. When there are multiple first channels 301a, the throat dimensions of the multiple first channels 301a can be exactly the same or at least partially different. When there are multiple second channels 301b, the throat dimensions of the multiple second channels 301b can be exactly the same or at least partially different.

[0150] like Figure 12As shown, in one embodiment, multiple first channels 301a are provided, one of which is a central foaming channel located at the center of the bubbler 30. The other first channels 301a and second channels 301b surround the central foaming channel. This allows the central position of the bubbler 30 to output microbubble liquid through the central foaming channel, while the edges of the bubbler 30 can output microbubbles through the other first channels 301a and conventional dissolved air liquid through the second channels 301b. This ensures that the microbubble liquid at the center of the bubbler 30 can be fully mixed with the dissolved air liquid at the edges, and vice versa, resulting in a more uniform microbubble liquid. Optionally, second channels 301b are provided on both radially sides of the central foaming channel.

[0151] For example, such as Figure 12 As shown, there are seven first channels 301a and two second channels 301b. One first channel 301a (i.e., the central bubbling channel) is located at the center of the bubbler 30. The other six first channels 301a and two second channels 301b are arranged at intervals along the circumference of the bubbler 30 and surround the central bubbling channel. The two second channels 301b are located on either side of the central bubbling channel. Of course, the number and arrangement of the first channels 301a and second channels 301b are not limited to this.

[0152] In order to simultaneously achieve a strong foaming effect and meet the demand for high flow rates, such as Figures 14 to 16 As shown, in another embodiment, the bubbler 30 has a plurality of fluid channels 301 arranged in parallel, the plurality of fluid channels 301 including a first channel 301a and a second channel 301b; the first channel 301a is configured as a Venturi channel and the second channel 301b is configured as a straight channel.

[0153] In this embodiment, the first channel 301a and the second channel 301b have different shapes. The first channel 301a is a Venturi channel, and the second channel 301b is a straight-through channel. The first channel 301a and the second channel 301b extend in parallel. The two ends of the first channel 301a penetrate the two axial end faces of the bubbler 30, and the two ends of the second channel 301b also penetrate the two axial end faces of the bubbler 30. The first channel 301a, being a Venturi channel, has a smaller throat diameter, which helps to achieve a greater pressure reduction and enhance the foaming effect. The second channel 301b, being a straight-through channel, helps to reduce flow resistance and achieve high flow rate delivery. Thus, by designing the first channel 301a and the second channel 301b with different shapes, the channel design is flexible, balancing a strong foaming effect with high flow rate requirements. The number of first channels 301a and the number of second channels 301b can be set to one, two, or more, depending on actual needs. The cross-sectional shape of the second channel 301b can be set according to actual needs. For example, the cross-sectional shape of the second channel 301b can be arc-shaped, circular, elliptical, square or other irregular cross-sections, without specific limitations.

[0154] To further enable the aerator 30 to achieve a high flow rate output, optionally, the flow cross-sectional area of ​​the second channel 301b is larger than the minimum flow cross-sectional area of ​​the first channel 301a. This ensures that more liquid is output from the second channel 301b, and the larger flow cross-sectional area of ​​the second channel 301b results in lower resistance, further increasing the output flow rate. Optionally, the cross-sectional shape of the second channel 301b is arc-shaped, giving it a larger flow cross-sectional area. When there are multiple second channels 301b, their cross-sectional shapes can be identical or at least partially different, and their flow cross-sectional areas can also be identical or at least partially different.

[0155] In one embodiment, the second channel 301b is arranged around the periphery of the first channel 301a; alternatively, multiple second channels 301b are provided, arranged at intervals along the circumference of the bubbler 30 and surrounding the periphery of the first channel 301a. This allows for foaming in the central portion while maintaining flow at the edges, conforming to fluid dynamics design and achieving a reasonable balance between foaming effect and high flow rate requirements, thus optimizing both the theoretical foaming effect and flow rate.

[0156] Optionally, multiple first channels 301a are provided, and microbubble liquid is generated simultaneously through multiple first channels 301a to ensure the microbubble effect. Optionally, second channels 301b are arranged around the periphery of multiple first channels 301a; or, multiple first channels 301a are located within the area enclosed by multiple second channels 301b.

[0157] For example, such as Figure 15 As shown, there are seven first channels 301a, one of which is a central foaming channel located at the center of the foamer 30, and the other six first channels 301a are arranged around the central foaming channel. There are four second channels 301b, which are arranged at intervals along the circumference of the foamer 30 and surround all the first channels 301a.

[0158] like Figure 18 As shown, in one embodiment, the bubbler 30 further includes a flow-deflecting element 31, which is located downstream of the outlet end of the plurality of fluid channels 301. In this embodiment, by providing the flow-deflecting element 31, the microbubble liquid and dissolved gas liquid output from the plurality of fluid channels 301 (e.g., the first channel 301a and the second channel 301b) can be turbulent, which can enhance the mixing of the microbubble liquid and the dissolved gas liquid, resulting in a more uniform microbubble liquid. The structure of the flow-deflecting element 31 includes, but is not limited to, a ring structure, a plate structure, a fan-shaped structure, or other structures, as long as they can achieve the flow-deflecting effect. For example, the flow-deflecting element 31 can be configured as a ring structure.

[0159] like Figure 18 As shown, in one embodiment, the bubbler 30 further includes a bubble breaker 32, which is located downstream of the outlet ends of the multiple fluid channels 301. In this embodiment, by providing the bubble breaker 32 downstream of the outlet ends of the multiple fluid channels 301, it can, on the one hand, play a turbulence role, allowing the bubble liquid and dissolved gas liquid to mix thoroughly and evenly, resulting in a more uniform microbubble liquid. On the other hand, the bubble breaker 32 can further shear and break the bubbles in the liquid, forming smaller microbubbles, thereby further improving the microbubble effect. The bubble breaker 32 can have various shapes, including but not limited to a mesh structure, a spiral shear structure, or other structures, as long as it can achieve the functions of turbulence and bubble shearing.

[0160] Optionally, the bubble-breaking component 32 may employ a mesh structure with a plurality of openings. For example, the bubble-breaking component 32 may include, but is not limited to, metal mesh, honeycomb panels, etc. The microbubble liquid and dissolved gas liquid can flow forward through the mesh openings of the mesh structure, and turbulence is formed at the edges of the mesh openings to ensure thorough and uniform mixing; and the shearing action of the mesh openings can further shear and break up the bubbles in the microbubble liquid, forming smaller microbubbles. To achieve better turbulence and bubble shearing effects, the breaking component may optionally employ a multi-layered mesh structure.

[0161] like Figure 17 and Figure 18As shown, in one embodiment, the aerator 30 includes a tube body 33 and a foaming section 34. The tube body 33 includes a first tube segment 331, a second tube segment 332, and a third tube segment 333 connected in sequence. The foaming section 34 is disposed in the second tube segment 332 and has multiple fluid channels 301. An inlet channel 3312 is formed in the first tube segment 331, which communicates with the inlet end of the multiple fluid channels 301. An inlet port 3311 is provided at the end of the first tube segment 331 away from the second tube segment 332. An outlet channel 3331 is formed in the third tube segment 333, which communicates with the outlet end of the multiple fluid channels 301. An outlet port 3332 is provided at the end of the third tube segment 333 away from the second tube segment 332.

[0162] In this embodiment, the inlet port 3311 of the first pipe section 331 is connected to the outlet port of the dissolved gas tank 20, and the outlet port 3332 of the third pipe section 333 can be connected to the user's water supply (e.g., a shower head). The dissolved gas liquid output from the dissolved gas tank 20 enters the inlet channel 3312 through the inlet port 3311, and is then transported to the outlet channel 3331 through multiple fluid channels 301 of the foaming part 34, and finally output to the user's water supply through the outlet port 3332. The first pipe section 331, the second pipe section 332, and the third pipe section 333 can be independently configured and assembled, or they can be a single integral structure. The foaming part 34 and the second pipe section 332 can be independently configured and assembled, or they can be a single integral structure. Optionally, the first pipe section 331, the second pipe section 332, the third pipe section 333, and the foaming part 34 can be a single integral structure, which simplifies the manufacturing process and avoids sealing problems and leakage issues caused by assembly structures.

[0163] Optionally, the third pipe section 333 is provided with a flow-turbulence element 31 and a bubble-breaking element 32, with the flow-turbulence element 31 located between the foaming section 34 and the bubble-breaking element 32. The microbubble liquid and dissolved gas liquid output through the multiple fluid channels 301 of the foaming section 34 enter the third pipe section 333, are turbulent and mixed by the flow-turbulence element 31, and then further mixed and sheared by the bubble-breaking element 32 to obtain a microbubble liquid with smaller particle size and more uniform distribution.

[0164] Optionally, the outer peripheral wall of the first pipe section 331 is provided with external threads 3313, which facilitates the connection of the first pipe section 331 to the dissolved gas tank 20 or other pipelines. For example, the outlet of the dissolved gas tank 20 is threadedly connected to the first pipe section 331 of the aerator 30 through the infusion pipeline 50, which simplifies the assembly structure and facilitates the installation and disassembly of the aerator 30.

[0165] like Figure 10As shown, in one embodiment, the microbubble generating system 100 further includes an air pump 40, which is connected to the air inlet 1061 of the fluid conveying component 10 and is used to inject gas into the first branch channel 102a. In this embodiment, the air pump 40 injects gas into the first branch channel 102a. Since the air pump 40 can generate a certain pressure, it is more conducive to injecting more gas into the first branch channel 102a, which is beneficial to further enhance the gas dissolving effect.

[0166] like Figure 10 As shown, the present invention also proposes a water heater 1000, including a heat exchange system 200 and a microbubble generating system 100. The heat exchange system 200 has a water outlet pipe; the water outlet pipe is connected to the liquid inlet 101 of the fluid conveying component 10. The specific structure of the microbubble generating system 100 is as described in the above embodiments. Since the water heater 1000 adopts all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0167] In this embodiment, the water heater 1000 can be a gas water heater, an electric water heater, or other types of water heater. Taking a gas water heater 1000 as an example, the heat exchange system 200 may include an inlet pipe, a heat exchanger, and an outlet pipe connected in sequence. Cold water can be transported to the heat exchanger through the inlet pipe for heating to form hot water. The hot water is then output to the microbubble generating system 100 through the outlet pipe. The microbubble generating system 100 generates microbubble hot water, which is then output to the user's water outlet (e.g., a shower head) to enhance the user's bathing experience. Optionally, the water heater 1000 also includes a booster pump 300, which is installed on the inlet pipe to increase the inlet water pressure and further meet the demand for large flow rates.

[0168] In one embodiment of the present invention, the water heater 1000 delivers gas and liquid to the dissolved gas tank 20 via a fluid conveying component 10 upstream of the dissolved gas tank 20. This reduces the difficulty of injecting gas into the dissolved gas tank 20, improves the dissolved gas effect, and achieves a large flow rate output, enabling the dissolved gas tank 20 to deliver more dissolved gas liquid to the downstream aerator 30. Simultaneously, the downstream aerator 30 can simultaneously achieve a good aeration effect and a large flow rate output. Thus, through these multiple effects, the water heater 1000 can provide a large flow rate of microbubble liquid to the user's water supply, thereby enhancing the user's bathing experience.

[0169] The above description is merely an exemplary embodiment of the present invention and does not limit the scope of protection of the present invention. Any equivalent structural transformations made based on the technical concept of the present invention and the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of protection of the present invention.

Claims

1. A fluid conveying component, characterized in that, The fluid transport component has an inlet, a branch channel, and an outlet connected in sequence. The branch channel includes at least a first branch channel and a second branch channel arranged in parallel. The channel wall of the first branch channel is provided with an air inlet for introducing external gas. The first branch channel is configured to generate a low-pressure zone when fluid passes through it. The air inlet is at least partially oriented towards the low-pressure zone. The second branch channel is a straight-through channel. The fluid conveying component is further provided with a liquid inlet channel, and the liquid inlet is connected to the inlet end of each branch channel of the branch channel via the liquid inlet channel; the flow cross-sectional area of ​​the liquid inlet and the minimum flow cross-sectional area of ​​the liquid inlet channel are greater than the sum of the flow cross-sectional areas of the inlet ends of each branch channel of the branch channel. Multiple second branch channels are arranged at circumferential intervals along the first branch channel. The first branch channel is located within the area enclosed by the multiple second branch channels. Alternatively, the second branch channels are at least partially arranged around the periphery of the first branch channel. The first branch channel is arranged opposite to the central area of ​​the liquid inlet channel. The fluid transport component includes: The liquid inlet section is provided with the liquid inlet port and the liquid inlet flow channel; A diversion section is located on the side of the liquid inlet section away from the liquid inlet. The diversion section includes a diversion channel and an air inlet. The liquid inlet connects to the inlet ends of each branch channel of the diversion channel via the liquid inlet channel. One end of the air inlet penetrates the inner wall of the first branch channel to form the air inlet, and the other end penetrates the surface of the diversion section to form a through-hole. The liquid outlet is located at the end of the diversion section away from the liquid inlet section, and the liquid outlet is provided with the liquid outlet.

2. The fluid conveying component as described in claim 1, characterized in that, The fluid conveying component is further provided with a liquid outlet channel located in the liquid outlet section, and the outlet ends of each branch channel of the diversion channel are connected to the liquid outlet via the liquid outlet channel.

3. The fluid conveying component as described in claim 2, characterized in that, The flow cross-sectional area of ​​the liquid outlet and the minimum flow cross-sectional area of ​​the liquid outlet channel are greater than the sum of the flow cross-sectional areas of the outlet ends of each branch channel of the diversion channel.

4. The fluid conveying component as claimed in claim 1, characterized in that, The first branch channel is a variable diameter channel, and when fluid passes through it, the low-pressure zone is formed at the narrowest part of the first branch channel; Alternatively, the first branch channel may be a vortex channel, in which the low-pressure zone is formed at the center of the vortex when fluid passes through.

5. The fluid conveying component as claimed in claim 1, characterized in that, The first branch channel includes a converging section, a throat, and a diffusing section arranged and connected from the liquid inlet toward the liquid outlet. The wide end of the converging section is connected to the liquid inlet, the wide end of the diffusing section is connected to the liquid outlet, and the air inlet is directed toward the throat.

6. The fluid conveying component as described in claim 5, characterized in that, The length of the tapered section is not less than 2 mm and not more than 4 mm; And / or, the length of the throat is not less than 1 mm and not more than 2 mm; And / or, the expansion angle of the gradually expanding segment is not less than 5° and not greater than 10°.

7. The fluid conveying component as claimed in claim 1, characterized in that, The first branch channel and the second branch channel are coaxially extended and nested with each other.

8. The fluid conveying component as claimed in claim 7, characterized in that, The second branch channel is arranged around the first branch channel. The fluid conveying component is also provided with an air inlet. The air inlet passes through the second branch channel and is connected to the first branch channel via the air inlet. The air inlet is not connected to the second branch channel.

9. The fluid conveying component as claimed in claim 1, characterized in that, The air inlet has a first section and a second section arranged and connected from the through opening toward the air inlet, wherein the inner diameter of the first section is larger than the inner diameter of the second section.

10. A microbubble generating system, characterized in that, include: The fluid transport component as described in any one of claims 1 to 9; A dissolved gas tank, wherein the dissolved gas tank is connected to the liquid outlet of the fluid conveying component; as well as A bubbler is connected to the output port of the dissolved gas tank. The bubbler is used to precipitate microbubbles in the dissolved gas liquid transported by the dissolved gas tank to form a microbubble liquid.

11. The microbubble generating system as described in claim 10, characterized in that, The bubbler has multiple fluid channels arranged in parallel, including a first channel and a second channel; Both the first channel and the second channel are configured as Venturi channels, and the throat diameter of the first channel is smaller than that of the second channel. Alternatively, the first channel can be configured as a Venturi channel, and the second channel can be configured as a through channel.

12. The microbubble generating system as described in claim 10 or 11, characterized in that, The microbubble generating system also includes an air pump, which is connected to the air inlet of the fluid delivery component and is used to inject gas into the first branch channel.

13. A water heater, characterized in that, include: The heat exchange system has an outlet pipe; and In any one of claims 10 to 12, the microbubble generating system, the water outlet pipe is connected to the liquid inlet of the fluid conveying component.

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