A micro-nano bubble generation system

Abstract

A micro-nano bubble generation system includes a gas-liquid mixer, which includes an air inlet channel, a liquid inlet channel, and a mixing channel. One end of the mixing channel is connected to the air inlet channel and the liquid inlet channel, and the other end is a first gas-liquid outlet, arranged in a honeycomb pattern; a pump body, connected to the first gas-liquid outlet; and a bubble generation device, including a jet member and a foaming device. The jet member is provided with a gas-liquid access channel, a jet channel, and a diffusion chamber. The gas-liquid access channel is provided with a first gas-liquid inlet connected to the pump body; the cross-sectional area of the jet channel is smaller than the cross-sectional areas of the gas-liquid access channel and the diffusion chamber; the foaming device includes at least one foaming channel. One end of the foaming channel is a second gas-liquid inlet, and the other end is a second gas-liquid outlet. The second gas-liquid inlet is communicated with the diffusion chamber, and the cross-sectional area of the foaming channel gradually increases from the second gas-liquid inlet to the second gas-liquid outlet. In this micro-nano bubble generation system, through multiple gas-liquid mixing, it can generate water containing a large number of micro-nano bubbles, with a high bubble concentration and good effects.

Description

Technical Field

[0001] The present invention belongs to the technical field of water treatment equipment manufacturing, and particularly relates to a micro-nano bubble generating system. Background Art

[0002] A water purifier is a water purification device that filters and purifies impurities and microorganisms in water by filtration. Generally, a filter element assembly is used in the water purifier to filter and purify raw water to obtain purified water. However, the existing water purifiers can only obtain one form of water body, with single functions and poor applicability.

[0003] Bubble generators are widely used in high-end faucets, which can play a role in smoothing the water flow and improving the comfort of water use. Ordinary bubble generators on existing faucets are not micro-nano bubble generators. The ordinary bubble generator mixes water with air by reducing the water flow rate to generate a small amount of bubbles above centimeter level. If bubble water containing smaller-sized bubbles is desired, the flow rate of the water with dissolved air needs to be increased. However, the small-sized bubbles generated in the bubble water are prone to burst and disappear under the action of external forces.

[0004] Therefore, it is necessary to provide a micro-nano bubble generating system to solve the deficiencies of the existing technology. Summary of the Invention

[0005] In order to overcome the above-mentioned drawbacks of the existing technology, the purpose of the present invention is to provide a micro-nano bubble generating system, aiming to solve the problems existing in the existing technology.

[0006] The technical solution adopted by the present invention to achieve its purpose is as follows:

[0007] A micro-nano bubble generating system, comprising:

[0008] A gas-liquid mixer, including an air inlet channel, a liquid inlet channel, and a mixing channel. One end of the mixing channel is connected to the air inlet channel and the liquid inlet channel, and the other end is provided with a plurality of first gas-liquid outlets arranged in a honeycomb pattern;

[0009] A pump body, which is connected to the first gas-liquid outlet; and

[0010] A bubble generating device, including a jet component and a bubbler; the jet component is provided with a gas-liquid access channel, a jet channel, and a diffusion chamber connected in sequence. The gas-liquid access channel is provided with a first gas-liquid inlet connected to the pump body; the cross-sectional area of the jet channel is smaller than the cross-sectional areas of the gas-liquid access channel and the diffusion chamber; the bubbler includes at least one bubbling channel. One end of the bubbling channel is a second gas-liquid inlet, and the other end is a second gas-liquid outlet. The second gas-liquid inlet is communicated with the diffusion chamber, and the cross-sectional area of the bubbling channel gradually increases from the second gas-liquid inlet to the second gas-liquid outlet.

[0011] Preferably, the liquid inlet channel includes a liquid inlet section and a first jet section connected to the liquid inlet section. The liquid inlet section has a constant cross-section and one end is a liquid inlet. The first jet section has a constant cross-section and one end is a liquid outlet connected to the mixing channel. The cross-sectional area of the liquid inlet is larger than the cross-sectional area of the liquid outlet.

[0012] Preferably, the mixing channel includes a mixing section and a second jet section. The mixing section is connected to the air inlet channel and the liquid inlet channel, and the first gas-liquid outlet is provided in the second jet section. The mixing section and the second jet section both have a constant cross-section, and the cross-sectional area of the mixing section is larger than the cross-sectional area of the liquid outlet, and the cross-sectional area of the first gas-liquid outlet is larger than the cross-sectional area of the liquid inlet.

[0013] Preferably, it further includes a liquid supply device connected to the liquid inlet channel. The liquid supply device includes a liquid supply pipe and a first control valve for controlling the on-off of the liquid supply pipe.

[0014] Preferably, it further includes a gas supply device connected to the air inlet channel. The gas supply device includes a gas supply pipe and an air pump for controlling the pressure of the gas supply pipe.

[0015] Preferably, the bubbler further includes a first expansion tank connected to the second gas-liquid inlet. The first expansion tank is communicated with the second gas-liquid inlet, and an opening is provided at one end of the first expansion tank away from the second gas-liquid inlet.

[0016] Preferably, the tank wall of the first expansion tank is provided with a convex structure protruding towards the opening.

[0017] Preferably, a second expansion tank communicated with the first expansion tank is further provided on the tank wall of the first expansion tank.

[0018] Preferably, the bubbler includes a plurality of sequentially connected bubbling members, and each bubbling member is provided with the bubbling channel. The bubbling member at one end is connected to the diffusion chamber of the jet member. Among two adjacent bubbling members, the second gas-liquid outlet of the bubbling member close to the jet member is connected to the second gas-liquid inlet of the bubbling member away from the jet member.

[0019] Preferably, the bubble generating device further includes a gas-liquid outlet joint, which is provided with a gas-liquid collection cavity and a terminal connection part for connecting to a water outlet terminal. The gas-liquid collection cavity is communicated with the second gas-liquid outlet.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. In the micro-nano bubble generation system of the present invention, a gas-liquid mixer and a bubble generation device are provided. Gas and liquid enter the mixing channel from the gas inlet channel and the liquid inlet channel of the gas-liquid mixer respectively, and are first mixed in the gas-liquid mixer. Then, the mixture is input into the pump body. The pump body accelerates the discharge speed of the gas-liquid mixture in the gas-liquid mixer, increasing the air intake of the gas-liquid mixer. Moreover, the gas-liquid mixture undergoes a second gas-liquid mixing during the accelerated pumping process in the pump body. Then, it is input into the bubble generation device, where the gas-liquid mixture is connected through the gas-liquid access channel, enters the foaming channel of the foam generator through the jet channel of the jet component, and undergoes a third gas-liquid mixing. Through multiple gas-liquid mixings, the present invention can generate more micro-nano bubbles, greatly increasing the bubble concentration and the efficiency of micro-nano bubble generation.

[0022] 2. In the bubble generation device, since the cross-sectional area of the jet channel is smaller than that of the gas-liquid access channel and the diffusion chamber, the pressure of the gas-liquid mixture increases and the flow rate accelerates after entering the jet channel. When it reaches the diffusion chamber, the pressure suddenly decreases, forming a negative pressure that further mixes water and gas together. After entering the foaming channel, since the cross-sectional area of the foaming channel gradually increases, expanding the water-gas mixing volume, and because gas is light and rises while water flows downward to impact, the high-speed flowing water impacts the gas, instantaneously forming a large number of bubbles. The present invention first makes the water and gas mix violently by accelerating the flow rate, and then generates bubbles by expanding the water-gas mixing volume and using high-speed flowing water to impact the gas, thus generating more micro-nano bubbles and higher efficiency.

[0023] 3. The first gas-liquid outlet provided in the gas-liquid mixer is arranged in a honeycomb pattern, enabling the gas-liquid mixture to pass through and enter the pump body more evenly and quickly, improving the efficiency of the second gas-liquid mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is a structural diagram of the present invention;

[0026] Figure 2 It is a three-dimensional view of the gas-liquid mixer of the present invention;

[0027] Figure 3 It is a cross-sectional view of the gas-liquid mixer of the present invention;

[0028] Figure 4 It is a three-dimensional view of the bubble generation device in the first embodiment;

[0029] Figure 5 is a cross-sectional view of the bubble generating device in the first embodiment;

[0030] Figure 6 is a perspective view of the jet component of the present invention;

[0031] Figure 7 is a perspective view of the end bubble generating component of the present invention;

[0032] Figure 8 is a cross-sectional view of the end bubble generating component of the present invention;

[0033] Figure 9 is a bottom view of the end bubble generating component of the present invention;

[0034] Figure 10 is a cross-sectional view of the bubble generating device in the second embodiment;

[0035] Figure 11 is a perspective view of the connecting bubble generating component of the present invention;

[0036] Figure 12 is a perspective view of the bubble generating device in the third embodiment;

[0037] Figure 13 is a cross-sectional view of the bubble generating device in the third embodiment;

[0038] Figure 14 is a perspective view of the bubble generating device in the fourth embodiment;

[0039] Figure 15 is a cross-sectional view of the bubble generating device in the fourth embodiment;

[0040] Description of reference numerals:

[0041] 1 - Gas-liquid mixer; 11 - Air inlet channel; 12 - Liquid inlet channel; 121 - Liquid inlet section; 1211 - Liquid inlet; 122 - First jet section; 1222 - Liquid outlet; 13 - Mixing channel; 131 - First gas-liquid outlet; 132 - Mixing section; 133 - Second jet section;

[0042] 2 - Pump body;

[0043] 3 - Bubble generating device;

[0044] 31 - Jet component; 311 - Gas-liquid access channel; 3111 - First gas-liquid inlet; 312 - Jet channel; 313 - Diffusion chamber; 314 - First threaded section;

[0045] 32 - Bubbler; 321 - Bubbling part; 3211 - Bubbling channel; 32111 - Second gas - liquid inlet; 32112 - Second gas - liquid outlet; 3212 - First expansion tank; 3213 - Protruding structure; 3214 - Second expansion tank; 3215 - First internal thread; 3216 - Second thread segment; 3201 - Connecting bubbling part; 3202 - Terminal bubbling part

[0046] 33 - Gas - liquid outlet connector; 331 - Gas - liquid collection cavity; 332 - Terminal connection part; 333 - Second internal thread segment

[0047] 4 - Liquid supply device; 41 - Liquid supply pipe; 42 - First control valve, 43 - Throttle valve

[0048] 5 - Gas supply device; 51 - Gas supply pipe; 52 - Air pump Detailed implementation manners

[0049] To make the technical problems solved by the present invention, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present invention will be further described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0050] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0051] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0052] Refer to Figures 1 to 15 , a micro - nano bubble generation system, comprising a gas - liquid mixer 1, a pump body 2 and a bubble generation device 3.

[0053] Among them, as Figure 2 and Figure 3 shown, the gas-liquid mixer 1 includes an air inlet passage 11, a liquid inlet passage 12 and a mixing passage 13. One end of the mixing passage 13 is connected to the air inlet passage 11 and the liquid inlet passage 12, and the other end is a first gas-liquid outlet 131, and is arranged in a honeycomb pattern. The pump body 2 is connected to the first gas-liquid outlet 131. The air inlet passage 11 is used to input gas (such as air), the liquid inlet passage 12 is used to input liquid (such as water), and the mixing passage 13 is used to mix the input gas and liquid. This is the first mixing. The mixed gas-liquid mixture fluid is discharged from the first gas-liquid outlet 131 to the pump body 2, and the pump body 2 pumps and sends it to the bubble generating device. The gas and liquid are drawn into the pump and can be discharged from the pump, experiencing the second gas-liquid mixing. Among them, the pump body 2 can be a booster pump.

[0054] Among them, as Figures 4 to 15 shown, the bubble generating device 3 includes a jet member 31 and a bubbler 32.

[0055] As Figure 4 and Figure 5 shown, the jet member 31 is provided with a gas-liquid access passage 311, a jet passage 312 and a diffusion chamber 313 connected in sequence. The gas-liquid access passage 311 is provided with a first gas-liquid inlet 3111 connected to the pump body 2; the cross-sectional area of the jet passage 312 is smaller than the cross-sectional areas of the gas-liquid access passage 311 and the diffusion chamber 313. The gas-liquid mixture fluid comes out of the pump body 2 and is input to the first gas-liquid inlet 3111, and sequentially passes through the gas-liquid access passage 311, the jet passage 312 and the diffusion chamber 313. Since the cross-sectional area of the jet passage 312 is smaller than the cross-sectional area of the gas-liquid access passage 311, the pressure will suddenly increase after entering the jet passage 312, so that the flow velocity when flowing through the jet passage 312 will be accelerated, the water flow impact force will be increased, which is beneficial to the generation of bubbles later. After entering the diffusion chamber 313 from the jet passage 312, it is ejected quickly. Since the cross-sectional area of the jet passage 312 is smaller than the cross-sectional area of the diffusion chamber 313, the pressure suddenly decreases, so that a negative pressure is formed at the outlet of the jet passage 312, and the gas is further dissolved in the water. In one embodiment, the cross-sectional area of the diffusion chamber 313 is larger than the cross-sectional area of the gas-liquid access passage 311 to increase the pressure difference and increase the dissolution amount of bubbles in the water.

[0056] As Figures 5 to 11As shown, the bubbler 32 includes at least one bubbling channel 3211. One end of the bubbling channel 3211 is a second gas-liquid inlet 32111, and the other end is a second gas-liquid outlet 32112. The second gas-liquid inlet 32111 communicates with the diffusion chamber 313. The cross-sectional area of the bubbling channel 3211 gradually increases from the second gas-liquid inlet 32111 to the second gas-liquid outlet 32112. The gas-liquid mixed fluid coming out of the diffusion chamber 313 enters the bubbling channel 3211 from the second gas-liquid inlet 32111. Since the cross-sectional area of the bubbling channel 3211 gradually increases from the second gas-liquid inlet 32111 to the second gas-liquid outlet 32112, the gas-water mixing volume is expanded, the pressure gradually decreases, the gas dissolved in the water becomes bubbles, and with the high-speed impact of the water flow on the gas, a large number of micro-nano bubbles are instantaneously formed and discharged from the second gas-liquid outlet 32112. This is the third mixing of gas and liquid.

[0057] In addition, generally, when in use, the bubble generating device 3 is vertical, the jet member 31 is above, and the bubbler 32 is below. Because the gas is light and rises upward, the water flow impacts downward, and the high-speed flowing water impacts the gas, and the two are violently mixed, thus instantaneously forming a large number of micro-nano bubbles. In one embodiment, the bubbling channel 3211 is conical. There can be only one bubbling channel 3211, or there can be multiple ones and all are connected to the diffusion chamber 313.

[0058] Specifically, as Figure 2 and Figure 3 shown, the liquid inlet channel 12 includes a liquid inlet section 121 and a first jet section 122 connected to the liquid inlet section 121. The liquid inlet section 121 has a constant cross-sectional area and one end is a liquid inlet 1211. The first jet section 122 has a constant cross-sectional area and one end is an outlet 1222 connected to the mixing channel 13. The cross-sectional area of the liquid inlet 1211 is larger than the cross-sectional area of the outlet 1222. Liquid is input from the liquid inlet 1211 and discharged to the mixing channel 13 from the outlet 1222. Since the cross-sectional area of the liquid inlet section 121 is larger than the cross-sectional area of the outlet 1222, the flow rate of the liquid is accelerated when passing through the jet section, so that the liquid can quickly rush into the mixing channel 13 and be violently mixed and dissolved with the gas in the mixing channel 13, which is beneficial to the generation of micro-nano bubbles. In one embodiment, the connection between the liquid inlet section 121 and the jet section is provided with a conical transition.

[0059] Specifically, as Figure 2 and Figure 3As shown in the figure, the mixing channel 13 includes a mixing section 132 and a second jet section 133. The mixing section 132 is connected to the air inlet channel 11 and the liquid inlet channel 12. The first gas-liquid outlet 131 is provided at the second jet section 133. The input gas and liquid are mixed for the first time in the mixing section 132, and then enter the second jet section 133. After passing through the second jet section 133, they are discharged from the first gas-liquid outlet 131 to the pump body 2. Among them, the mixing section 132 and the second jet section 133 are both set with equal cross-sections, that is, they can be pipe sections, and the cross-sectional area of the mixing section 132 is larger than the cross-sectional area of the liquid outlet 1222. After the liquid enters the mixing section 132, due to the sudden increase in space, suction is generated, accelerating the suction of the gas and liquid in the air inlet channel 11 and the liquid inlet channel 12, further intensifying the gas-liquid mixing. The cross-sectional area of the first gas-liquid outlet 131 is larger than the cross-sectional area of the liquid inlet 1211, that is, the outlet flow rate is greater than the inlet flow rate, and naturally gas is sucked in from the air inlet channel 11.

[0060] Preferably, as Figure 1 shown, the micro-nano bubble generation system further includes a liquid supply device connected to the liquid inlet channel 12. The liquid supply device includes a liquid supply pipe 41 and a first control valve 42 for controlling the on-off of the liquid supply pipe 41. The liquid supply pipe 41 can be connected to a faucet or other water sources. The first control valve 42 can be an electromagnetic valve, and the channel can be automatically controlled by a controller. More preferably, a pressure stabilizing valve is further provided on the liquid supply pipe 41.

[0061] Similarly, as Figure 1 shown, the micro-nano bubble generation system further includes a gas supply device 5 connected to the air inlet channel 11. The gas supply device 5 includes a gas supply pipe 51 and an air pump 52 for controlling the pressure of the gas supply pipe 51. More preferably, an air filtering device and / or a flow regulating valve are further provided on the gas supply pipe 51. The air filtering device can filter the air entering the gas-liquid mixer 1, filtering dust and bacteria in the air. The check valve can prevent the liquid in the gas-liquid mixer 1 from overflowing from the gas supply pipe 51 due to excessive pressure in the gas-liquid mixer 1. The flow regulating valve can control the flow rate of the gas entering the gas supply pipe 51, and different flow rates can be selected according to specific usage conditions.

[0062] Specifically, as Figure 5 and Figure 8As shown, the bubbler 32 further includes a first expansion tank 3212 connected to the second gas-liquid inlet 32111. The first expansion tank 3212 is in communication with the second gas-liquid inlet 32111, and an opening is provided at one end of the first expansion tank 3212 away from the second gas-liquid inlet 32111. The setting of the first expansion tank 3212 can increase the water-gas mixing volume and can also store some gases that are not dissolved in water, enabling the cavity to accommodate more gases and facilitating the generation of more bubbles. The gas-liquid mixed fluid enters the first expansion tank 3212 from the diffusion chamber 313 and impacts on the tank wall of the first expansion tank 3212, causing the gas and liquid to mix more violently together, thereby increasing the number of nano microbubbles.

[0063] Preferably, as Figure 5 , Figure 8 and Figure 9 shown, the tank wall of the first expansion tank 3212 is provided with a convex structure 3213 protruding towards the opening. After the bubbles enter the first expansion tank 3212, they impact the convex structure 3213, and the gas, liquid, and water in the gas-liquid mixed fluid are further mixed to generate more bubbles. Specifically, the convex structure 3213 is in the shape of a sheet and / or a ring. In one embodiment, the convex structure 3213 has a ring shape and a sheet shape. The ring-shaped convex structure 3213 is located in the middle, and several sheet-shaped convex structures 3213 are located outside the ring-shaped convex structure 3213 and are radially arranged, dividing the first expansion tank 3212 into several blocks, and a bubbling channel 3211 is provided in each block.

[0064] Furthermore, as Figure 5 , Figure 8 and Figure 9 shown, the tank wall of the first expansion tank 3212 is further provided with a second expansion tank 3214 communicating with the first expansion tank 3212. The second expansion tank 3214 further increases the gas-liquid mixing volume. It can increase the water-gas mixing volume and can also store some gases that are not dissolved in water, enabling the cavity to accommodate more gases and facilitating the generation of more bubbles.

[0065] Among them, as Figure 4 and Figure 5 shown, the jet part 31 is threadedly connected to the bubbler 32. Specifically, the jet part 31 is provided with a first threaded section 314, an external thread is provided on the first threaded section 314, and the bubbler 32 is provided with an internal thread, and the internal thread can be threadedly connected to the first threaded section 314, thereby realizing the connection between the jet part 31 and the bubbler 32. In addition, a sealing ring is provided between the jet part 31 and the bubbler 32 to ensure that there is no leakage at the connection between the two.

[0066] In one embodiment, as Figure 4 shown, the bubbler 32 has only one bubbling part 321.

[0067] In addition, the bubbler 32 has other setting forms, such as Figures 10 to 15 As shown, the bubbler 32 includes a number of bubbling members 321 connected in sequence, and each of the bubbling members 321 is provided with the bubbling channel 3211; the second gas-liquid inlet 32111 of the bubbling member 321 at one end is connected to the diffusion chamber 313 of the jet member 31; among two adjacent bubbling members 321, the second gas-liquid outlet 32112 of the bubbling member 321 close to the jet member 31 is connected to the second gas-liquid inlet 32111 of the bubbling member 321 far from the jet member 31. By increasing the number of the bubbling members 321, the content and efficiency of micro-nano bubbles in the finally discharged gas-liquid mixed fluid can be improved. Correspondingly, a first expansion groove 3212, a second expansion groove 3214, and a convex structure 3213 are provided on each of the bubbling members 321.

[0068] Such as Figure 10 As shown, two adjacent bubbling members 321 are connected by threads.

[0069] Such as Figures 7 to 11 As shown, the bubbling member 321 can be classified according to its specific position into a connecting bubbling member 3201 and a terminal bubbling member 3202. One end of the connecting bubbling member 3201 is provided with an internal thread, and one end is provided with a second thread section 3216. The second thread section 3216 has an external thread. The internal thread can be connected to the first thread section 314 of the jet member 31 or to the second thread section 3216 of another bubbling member 321. The terminal bubbling member 3202 only has an internal thread and no external thread section, and it is connected to the second thread section 3216 of the previous bubbling member 321 through the internal thread.

[0070] In one embodiment, as Figure 10 As shown, the bubbler 32 includes two bubbling members 321, and the structure of the bubble generating device 3 is successively the jet member 31, the connecting bubbling member 3201, and the terminal bubbling member 3202.

[0071] In another embodiment, the bubbler 32 includes three bubbling members 321, and the structure of the micro-nano bubble generating device 3 is successively the jet member 31, the connecting bubbling member 3201, the connecting bubbling member 3201, and the terminal bubbling member 3202. Similarly, the number of the bubbling members 321 in the bubbler 32 can be more. Except for one terminal bubbling member 3202, the rest are all connecting bubbling members 3201.

[0072] In a specific implementation, it may be necessary to input the prepared water rich in micro-nano bubbles into the cleaning device. Therefore, in order to facilitate the connection between the bubble generating device 3 and the cleaning device, as Figures 12 to 15As shown, the bubble generating device 3 further includes a gas-liquid outlet joint 33, which is provided with a gas-liquid collection chamber 331 and a terminal connection part 332 for connecting to the water outlet terminal. The gas-liquid collection chamber 331 is communicated with the second gas-liquid outlet 32112. Among them, the water outlet terminal can be a water outlet faucet or a water outlet pipe of a cleaning device. Therefore, the terminal connection part 332 can be set as a hollow tube, communicated with the gas-liquid collection chamber 331, and can be inserted into the water outlet pipe of the cleaning device to achieve connection. The gas-liquid collection chamber 331 is communicated with the second gas-liquid outlet 32112, and can receive the liquid containing a large number of micro-nano bubbles (such as bubble water) generated by the bubbler 32, and input it from the terminal connection part 332 to the water outlet terminal of the cleaning device. In addition, there are multiple bubbling channels 3211 on the bubbler 32, which can be 2-20, such as 5. In one embodiment, there are 10 bubbling channels 3211, and all these bubbling channels 3211 are communicated with the gas-liquid collection chamber 331. A gas-liquid collection chamber 331 is used to collect the liquid containing a large number of micro-nano bubbles generated by each bubbling channel 3211 and input them to the water outlet terminal together.

[0073] Among them, as Figure 13 and Figure 15 shown, the gas-liquid outlet joint 33 is threadedly connected to the bubbler 32. The bubbler 32 is provided with a second threaded section 3216, and the gas-liquid outlet joint 33 is provided with a second internal threaded section matching the second threaded section 3216.

[0074] In one embodiment, as Figure 14 shown, the bubbler 32 includes two bubbling parts 321. Then the structure of the bubble generating device 3 is successively a jet part 31, a bubbling part 321, a bubbling part 321, and a gas-liquid outlet joint 33.

[0075] In another embodiment, the bubbler 32 includes three bubbling parts 321. Then the structure of the bubble generating device 3 is successively a jet part 31, a bubbling part 321, a bubbling part 321, a bubbling part 321, and a gas-liquid outlet joint 33.

[0076] Similarly, in the bubble generating device 3, the number of bubbling parts 321 in the bubbler 32 can be more. The two ends are respectively a jet part 31 and a gas-liquid outlet joint 33, and the middle is successively connected bubbling parts 321.

[0077] In the description of this article, it should be understood that the terms such as "upper", "lower", "left", "right", etc. in terms of orientation or position relationship are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0078] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0079] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0080] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. A micro-nano bubble generation system, characterized in that Comprising: A gas-liquid mixer, including an air inlet channel, a liquid inlet channel, and a mixing channel. One end of the mixing channel is connected to the air inlet channel and the liquid inlet channel, and the other end is provided with a plurality of first gas-liquid outlets arranged in a honeycomb pattern; A pump body, which is connected to the first gas-liquid outlet; and A bubble generating device, including a jet member and a foaming device; the jet member is provided with a gas-liquid access channel, a jet channel, and a diffusion chamber connected in sequence. The gas-liquid access channel is provided with a first gas-liquid inlet connected to the pump body; the cross-sectional area of the jet channel is smaller than the cross-sectional areas of the gas-liquid access channel and the diffusion chamber; the foaming device includes at least one foaming channel, one end of the foaming channel is a second gas-liquid inlet, and the other end is a second gas-liquid outlet. The second gas-liquid inlet is communicated with the diffusion chamber, and the cross-sectional area of the foaming channel gradually increases from the second gas-liquid inlet to the second gas-liquid outlet; The foaming device further includes a first expansion tank connected to the second gas-liquid inlet, the first expansion tank is communicated with the second gas-liquid inlet, and one end of the first expansion tank away from the second gas-liquid inlet is provided with an opening; The tank wall of the first expansion tank is provided with a convex structure protruding towards the opening; The tank wall of the first expansion tank is further provided with a second expansion tank communicated with the first expansion tank; The foaming device includes a plurality of sequentially connected foaming members, and each foaming member is provided with the foaming channel; the foaming member at one end is connected to the diffusion chamber of the jet member; among two adjacent foaming members, the second gas-liquid outlet of the foaming member close to the jet member is connected to the second gas-liquid inlet of the foaming member far from the jet member.

2. The micro-nano bubble generation system according to claim 1, characterized in that: The liquid inlet channel includes a liquid inlet section and a first jet section connected to the liquid inlet section. The liquid inlet section has a constant cross-section and one end is a liquid inlet, and the first jet section has a constant cross-section and one end is a liquid outlet connected to the mixing channel. The cross-sectional area of the liquid inlet is larger than the cross-sectional area of the liquid outlet.

3. The micro-nano bubble generation system according to claim 2, characterized in that: The mixing channel includes a mixing section and a second jet section. The mixing section is connected to the air inlet channel and the liquid inlet channel, and the first gas-liquid outlet is arranged in the second jet section; the mixing section and the second jet section have a constant cross-section, and the cross-sectional area of the mixing section is larger than the cross-sectional area of the liquid outlet, and the cross-sectional area of the first gas-liquid outlet is larger than the cross-sectional area of the liquid inlet.

4. The micro-nano bubble generation system according to claim 1, wherein: It further includes a liquid supply device connected to the liquid inlet channel. The liquid supply device includes a liquid supply pipe and a first control valve for controlling the on-off of the liquid supply pipe.

5. The micro-nano bubble generation system according to claim 1, characterized in that: It further includes a gas supply device connected to the air inlet channel. The gas supply device includes a gas supply pipe and an air pump for controlling the pressure of the gas supply pipe.

6. The micro-nano bubble generation system according to claim 1, wherein: The bubble generating device further includes a gas-liquid outlet joint, which is provided with a gas-liquid collection cavity and a terminal connection part for connecting to a water outlet terminal. The gas-liquid collection cavity is communicated with the second gas-liquid outlet.

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