Micro-nano bubble generating device and household water supply pipeline micro-nano bubble system

Abstract

The utility model discloses a micro-nano bubble generating device and a household water supply pipeline micro-nano bubble system, and relates to the technical field of household water purification. Structural cooperation of the main body, the one-way valve, the mixing cutting piece, the rotary cutting piece, the crushing cutting piece and the mounting base is provided, so that the micro-nano bubble generating device does not need to be pressurized or provided with various pump bodies required by the micro-nano bubble technology, and the device is simple in overall structure, small, exquisite, high in integration level, small in mounting space and convenient to use. The device is used for mounting various household water supply pipelines; meanwhile, the device can be directly connected with a household water inlet pipeline and a household water outlet pipeline, multiple cutting of gas can be achieved without pressurization through cooperation of all the structures, and therefore micro-nano bubble water is obtained, micro-nano bubble full treatment is conducted on the whole household water supply pipeline, and the effects of improving oil stain washing and the like are achieved; and moreover, various purposes such as tail-end drinking, bathing, beautifying, health care, washing, dish washing and the like are beneficially improved.

Description

Technical Field

[0001] This utility model relates to the field of household water purification technology, specifically to a micro-nano bubble generator and a micro-nano bubble system for household water supply pipes. Background Technology

[0002] As people's living standards improve, they are paying more attention to healthy water. As a result, micro-nano bubble technology, which has deep cleaning capabilities, high oxygen content, and adsorption capacity, is attracting more and more attention.

[0003] Most products on the market with micro-nano bubble technology are concentrated at the point of use, such as kitchen faucet aerators, bathroom faucet aerators, and shower heads. However, the development of micro-nano bubble technology in household water pipes is still relatively slow. The main reason is that traditional micron bubble generators require air compressors, water pumps, large dissolved air tanks, or gas-liquid mixing pumps and stabilizing tanks. These necessary micro-nano bubble generators are bulky, noisy, and expensive, which limits the application of micro-nano bubble technology in household water pipes.

[0004] Existing technology CN202311211646.X discloses a pump-free micro / nano bubble generator. The entire water-using process does not require a self-priming pump or an air pump. Air automatically enters the pressurization tank under the negative pressure of the water flow. The pressurization tank pressurizes the water flow and gas, thereby generating micro / nano bubbles. While this device eliminates the need for a pump and reduces resource waste, it primarily relies on the pressurization tank for gas-liquid mixing, requiring high water pressure, which is often insufficient for household pipes. Furthermore, a stable water flow rate is necessary, significantly impacting bubble distribution and size. The pressurization tank is also relatively large, requiring substantial space and making it unsuitable for installation in small apartments.

[0005] In view of this, this utility model is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a micro-nano bubble generator and a micro-nano bubble system for household water supply pipes.

[0007] This utility model is implemented as follows:

[0008] In a first aspect, this utility model provides a micro / nano bubble generating device, including a main body, a one-way valve, a mixing and cutting component, a rotating cutting component, a crushing and cutting component, and a mounting base.

[0009] The main body is continuous at both ends along the axial direction, and the inner cavity of the main body divides the two axial sections into a water inlet area and a mixing and cutting area through the first surface.

[0010] The water inlet zone includes an inlet section and a spiral section arranged in sequence. The inner wall of the spiral section is provided with a spiral part for rotating the water.

[0011] The hybrid cutting component is installed in the hybrid cutting zone and forms a gas channel with the first surface. The gas channel, the spiral section and the inner cavity of the hybrid cutting component are all interconnected. An air inlet is provided on the main body, and a one-way valve is installed in the air inlet. The air inlet is connected to the gas channel.

[0012] The rotary cutter is connected to the crushing cutter, and the rotary cutter can rotate selectively relative to the crushing cutter. Both the rotary cutter and the crushing cutter are contained within a mixed cutting zone.

[0013] The rotary cutter includes multiple rotating blades and a side wall with multiple first through holes. The inner wall of the mixing cutter or the inner wall of the mixing cutting area of ​​the main body corresponding to the position of the rotary cutter is provided with first cutting teeth so that the mixed gas-liquid mixture is cut by the first cutting teeth after passing through the first through holes.

[0014] The surface of the crushing and cutting component near the rotating cutting component is provided with a second cutting tooth, and the crushing and cutting component is also provided with a fluid channel.

[0015] The mounting base is sealed to the end of the mixing and cutting area away from the water inlet area.

[0016] In an optional embodiment, the inner cavity of the hybrid cutting member includes a hybrid section and a cutting section along the axial direction, with the hybrid section located on one side of the helical section close to the body.

[0017] Preferably, the helical segment and the mixed segment form a Venturi structure, with the narrowed portion of the Venturi structure located on the helical segment, the expanded portion located on the mixed segment, and the pharynx located on the helical segment and / or the mixed segment, and the pharynx connecting the narrowed portion and the expanded portion.

[0018] Preferably, the spiral portion consists of multiple ribs arranged on the inner wall surface of the spiral segment, and the multiple ribs are designed to be rotated and tilted.

[0019] Preferably, the number of reinforcing bars is 3 to 18.

[0020] In an optional implementation, the end of the gas passage away from the air inlet forms a plurality of tangential air intake passages.

[0021] Preferably, the width of the air intake channel decreases sequentially along the direction close to the inner cavity of the mixing and cutting component.

[0022] Preferably, the number of air intake channels is 3 to 18.

[0023] Preferably, the first surface of the main body is provided with a positioning boss protruding towards the mixing and cutting area, and the surface of the mixing and cutting component at one end of the mixing section is provided with a positioning groove, and the positioning boss and the positioning groove cooperate to position the component.

[0024] Preferably, the air intake channel is located on the bottom surface of the positioning groove.

[0025] In an optional embodiment, the rotary cutter is housed within the cutting section of the mixing cutter, the sidewall of the cutting section is provided with first cutting teeth, and the crushing cutter is located on the surface of the cutting section away from the mixing section.

[0026] Preferably, the first cutting teeth extend along the axial direction of the mixed cutting component and are inclined, and multiple first cutting teeth are connected in sequence so that the cross-section of the cutting segment is serrated.

[0027] Preferably, the crushing and cutting component abuts between the mixing and cutting component and the mounting base, and the cutting segment communicates with the inner cavity of the mounting base through a fluid channel.

[0028] In an optional implementation, the aperture of the end face of the mixing section near the cutting section is less than or equal to the diameter of the rotary cutter.

[0029] Preferably, the aperture of the end face of the mixing section near the cutting section is smaller than the diameter of the rotary cutting element.

[0030] In an optional embodiment, the crushing and cutting component includes a central cutting area, an edge cutting area, and multiple connecting parts. The central cutting area and the edge cutting area are connected by the connecting parts, and a fluid channel is formed between the central cutting area, the edge cutting area, and two adjacent connecting parts.

[0031] Preferably, the diameter of the central cutting area is greater than or equal to the diameter of the rotary cutting element; more preferably, the diameter of the central cutting area is greater than the diameter of the rotary cutting element.

[0032] Preferably, the central cutting area, the edge cutting area, and the connecting part are all provided with second cutting teeth.

[0033] In an optional embodiment, the rotary cutting component is provided with a first mounting portion, and the crushing cutting component is provided with a second mounting portion. The first mounting portion and the second mounting portion are respectively a protrusion or a through hole. The first mounting portion and the second mounting portion cooperate to allow the rotary cutting component and the crushing cutting component to be selectively rotated and connected.

[0034] Preferably, the first mounting part is a protrusion, and the second mounting part is a through hole.

[0035] In an optional embodiment, at least one separating cutting element is also included, located on the side of the crushing cutting element away from the rotating cutting element. The separating cutting element includes a base plate with a plurality of second through holes, and the base plate is spaced apart from the crushing cutting element.

[0036] Preferably, when there are multiple separate cutting parts, the multiple base plates are arranged at intervals.

[0037] Preferably, the separating and cutting component further includes a side plate, which is located between the bottom plate and the breaking and cutting component; when there are multiple separating and cutting components, the side plate is also located between two adjacent bottom plates.

[0038] In an optional embodiment, a first sealing groove is provided on the side wall surface of the hybrid cutting component that contacts the main body. The first sealing groove contains a sealing component and is located on the side of the gas passage away from the air inlet.

[0039] Preferably, a second sealing groove is provided at the connection between the main body and the mounting base, and the second sealing groove contains a sealing element.

[0040] Preferably, the main body is threadedly connected to the mounting base.

[0041] Secondly, this utility model provides a micro-nano bubble system for household water supply pipes, including an inlet pipe, an outlet pipe, and a device as described in any of the foregoing embodiments. The inlet pipe is sealed to the main body, and the outlet pipe is sealed to the mounting base.

[0042] This utility model has the following beneficial effects:

[0043] This invention provides a micro / nano bubble generator and a micro / nano bubble system for household water supply pipes. A spiral section is provided on the spiral segment of the main body. Water enters the main body and rotates under the action of the spiral section, entering the inner cavity of the mixing and cutting component. The gap between the mixing and cutting component and the main body forms a gas channel. When water enters the main body, the pressure change in the inner cavity of the micro / nano bubble generator causes the one-way valve in the air inlet to open, allowing gas to enter from the air inlet. Gas then mixes with water in the inner cavity of the mixing and cutting component through the gas channel, forming a gas-water mixture. Because the water enters in a rotating manner, the gas is first broken into small bubbles during the mixing process. These bubbles then continue to rotate with the water until they contact the rotating blades of the rotating cutting component, causing the blades to rotate and throw the gas-water mixture out from the first through-hole on the side wall of the rotating cutting component, further breaking the small bubbles. The thrown-out gas-water mixture contacts the first cutting teeth, breaking the bubbles again. The bubbles are then bounced back and contact the second cutting teeth on the surface of the broken cutting component for further breakage and / or discharged through the fluid channel, forming micro / nano bubble water. This device requires no pressurization or the various pumps needed for micro-nano bubble technology. Its overall structure is simple, compact, and highly integrated, requiring minimal installation space and suitable for installation in various household water supply pipes. Furthermore, it can be directly connected to household inlet and outlet water pipes. Through the coordination of its components, it achieves multi-stage gas cutting without pressurization, thereby obtaining micro-nano bubble water. This provides comprehensive micro-nano bubble treatment for the entire household water supply system, enhancing the flushing of grease and other contaminants. It also offers beneficial enhancements for various end-use applications such as drinking, bathing, beauty, health, washing, and dishwashing. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the micro / nano bubble generator provided in the first embodiment of the present invention;

[0046] Figure 2 A cross-sectional view of the micro / nano bubble generator provided in the first embodiment of this utility model;

[0047] Figure 3 A cross-sectional view of the main body provided in the first embodiment of this utility model;

[0048] Figure 4 This is a schematic diagram of the structure of the hybrid cutting component provided in the first embodiment of the present invention;

[0049] Figure 5 This is a schematic diagram of the structure of the hybrid cutting component provided in the first embodiment of the present invention;

[0050] Figure 6 A cross-sectional view of the hybrid cutting component provided in the first embodiment of this utility model;

[0051] Figure 7 This is a schematic diagram of the structure of the rotary cutting component provided in the first embodiment of the present invention;

[0052] Figure 8 This is a schematic diagram of the structure of the crushing and cutting component provided in the first embodiment of the present invention;

[0053] Figure 9 This is a schematic diagram of the structure of the separating and cutting component provided in the first embodiment of the present invention;

[0054] Figure 10 A cross-sectional view of a micro-nano bubble system for household water supply pipes provided in the second embodiment of this utility model.

[0055] Key component symbols: 100 - Micro / nano bubble generator; 110 - Main body; 300 - Water outlet pipe; 111 - First surface; 1111 - Positioning boss; 112 - Water inlet section; 113 - Spiral section; 114 - Rib; 115 - Air inlet; 116 - Mixing and cutting zone; 120 - One-way valve; 130 - Mixing and cutting component; 131 - Mixing section; 132 - Cutting section; 133 - Positioning groove; 134 - First cutting tooth; 135 - Air inlet channel; 140 - Rotating cutting component; 141 - Rotation Blade; 142-First through hole; 143-First mounting part; 150-Crushing and cutting component; 151-Second cutting tooth; 152-Fluid channel; 153-Central cutting area; 154-Edge cutting area; 155-Connecting part; 156-Second mounting part; 160-Separation and cutting component; 161-Second through hole; 162-Base plate; 163-Side plate; 170-Mounting base; 191-First sealing groove; 192-Second sealing groove; 10-Domestic water supply pipe micro-nano bubble system; 200-Water inlet pipe. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0057] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0058] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0059] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0060] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0061] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0062] First Embodiment

[0063] Please refer to Figure 1 and 2 This embodiment provides a micro / nano bubble generator 100, including a main body 110, a one-way valve 120, a mixing cutter 130, a rotating cutter 140, a crushing cutter 150, a separating cutter 160, and a mounting base 170.

[0064] Please refer to Figure 3 The main body 110 extends through both ends along the axial direction, and the inner cavity of the main body 110 divides the two axial sections into a water inlet area and a mixing and cutting area 116 through the first surface 111. The mounting base 170 is sealed to the end of the mixing and cutting area 116 away from the water inlet area.

[0065] It is understandable that, since the inner cavity of the main body 110 is axially continuous, the first surface 111 should have a through hole, rather than a completely closed plane.

[0066] In such Figure 3 In the illustrated embodiment, the first surface 111 is arranged radially along the body 110, with the left side of the first surface 111 being a water inlet area and the right side being a mixing and cutting area 116. It can be understood that water enters the inner cavity of the body 110 from the water inlet area and then flows to the area where the mixing and cutting area 116 is located.

[0067] Furthermore, the water inlet area includes a water inlet section 112 and a spiral section 113 arranged sequentially along the direction close to the first surface 111, and the end face of the spiral section 113 away from the water inlet section 112 is the first surface 111.

[0068] In order to change the water entering the inner cavity of the main body 110 from a horizontal flow channel to a rotating flow so as to form micro-nano bubble water, a spiral part for rotating the water is provided on the inner wall surface of the spiral section 113.

[0069] In this embodiment, the spiral part consists of a plurality of ribs 114 provided on the inner wall surface of the spiral segment 113. The plurality of ribs 114 are designed to rotate and tilt around the through hole of the first surface 111. For example, each rib 114 is tangent to the through hole of the first surface 111.

[0070] In other embodiments, the spiral part can also be other structures, such as spiral ribs 114 or spiral grooves, as long as it can change the flow mode of water to rotational flow.

[0071] In this embodiment, there are 8 ribs 114 in the spiral section, and the 8 ribs 114 are evenly spaced.

[0072] Please refer to Figures 4-6 The hybrid cutting component 130 is installed within the hybrid cutting zone 116, and forms a gas channel (e.g., ...) between it and the first surface 111. Figure 2 (As shown by the red line in the middle), the gas channel, the spiral section 113 and the inner cavity of the mixing and cutting component 130 are all interconnected; the main body 110 is provided with an air inlet 115, and a one-way valve 120 is installed in the air inlet 115, and the air inlet 115 is connected to the gas channel.

[0073] When the hybrid cutting component 130 is installed inside the main body 110, since the hybrid cutting component 130 and the main body 110 are two different structures, a gap will inevitably be formed at the connection between the two after installation. This utility model utilizes this naturally formed gap as a gas channel for gas to enter and mix with water, and correspondingly opens an air inlet 115 on the main body 110 and adds a one-way valve 120 to achieve the effect of introducing gas into the micro-nano bubble generator 100.

[0074] The micro-nano bubble generator 100 provided by this utility model does not require an additional separate air inlet device or air inlet component, achieving a high degree of integration of the micro-nano bubble generator 100 and reducing installation space. When the pressure inside the micro-nano bubble generator 100 changes, the one-way valve 120 opens, and gas enters the inner cavity of the micro-nano bubble generator 100 from the air inlet 115 through the gas channel, achieving mixing of water and gas to form a gas-water mixture.

[0075] Understandably, since the gap between the main body 110 and the hybrid cutting component 130 is not a strip-shaped gap but a planar gap, the gas channel also exhibits a planar structure between the main body 110 and the hybrid cutting component 130. When the one-way valve 120 is closed, gas can form a gas film within the gas channel, and water can also be blocked from entering the gas channel.

[0076] To optimize the gas entry method and facilitate the formation of micro- and nano-bubbles, the gas is first broken into small bubbles in the initial stage of mixing with water. The method is as follows:

[0077] In this embodiment, a plurality of tangential air intake channels 135 are formed at the end of the gas passage away from the air inlet 115, and the air intake channels 135 are formed on the surface of the mixing cutter 130 near the first surface 111. In other embodiments, the air intake channels 135 may also be formed on the first surface 111.

[0078] After entering through the air inlet 115, the gas passes through the gas channel and enters the inner cavity of the mixing and cutting component 130 through the air inlet channel 135 at the end of the gas channel, where it mixes with water. The air inlet channel 135 is tangent to the cross-section of the inner cavity of the mixing and cutting component 130. Combined with the rotating water inlet method, this facilitates the initial dispersion of gas in the water, forming small bubbles, and resulting in a more thorough and uniform mixing of gas and water.

[0079] In this embodiment, in order to further promote the uniform distribution of gas and water, the width of the air intake channel 135 decreases sequentially along the direction close to the inner cavity of the mixing and cutting component 130.

[0080] In this embodiment, there are 8 air intake channels 135, which are evenly spaced on the surface of the mixing cutter 130.

[0081] In this embodiment, the inner cavity of the hybrid cutting member 130 includes a hybrid section 131 and a cutting section 132 along the axial direction. The hybrid section 131 is located on one side of the spiral section 113 near the main body 110 and is directly connected to the spiral section 113.

[0082] In this embodiment, to promote the generation of micro- and nano-bubbles, the helical section 113 and the mixing section 131 form a Venturi structure, which includes a narrowed section, a throat section, and an expanded section, thereby increasing the fluid's dynamics as it passes through. Therefore, the micro- and nano-bubble generating device 100 provided in this embodiment increases the flow rate of the incoming water on the water inlet side through the internal cavity structure of the body and the mixing and cutting member 130.

[0083] In this embodiment, the narrowed portion of the venturi structure is located on the helical segment 113, the widened portion is located on the mixing segment 131, and the pharynx is located on both the helical segment 113 and the mixing segment 131, with the pharynx connecting the narrowed and widened portions. In other embodiments, the pharynx may also be disposed separately on either the helical segment 113 or the mixing segment 131.

[0084] Due to the reduced diameter structure of the spiral section 113 and the spiral section composed of eight ribs 114 provided on the spiral section 113, the ability of water to rotate and flow is enhanced after entering the inner cavity of the main body 110. Not only does the water flow speed increase, but the rotational capacity is also improved. In addition, the gas enters tangentially from the air inlet channel 135 and mixes with the water. Therefore, the gas and the rotating water flow also exhibit a tangential mixing state, which is conducive to more uniform gas-liquid mixing and also conducive to the initial separation of gas into small bubbles.

[0085] Please refer to Figure 3 and Figure 6 In this embodiment, the first surface 111 of the main body 110 is provided with a positioning boss 1111 that protrudes in the direction of the mixing cutting area 116, and the surface of the mixing cutting component 130 at one end of the mixing section 131 is provided with a positioning groove 133. The positioning boss 1111 and the positioning groove 133 cooperate to position and position the main body 110 and the mixing cutting component 130.

[0086] Furthermore, the mating structure of the positioning boss 1111 and the positioning groove 133 also facilitates the uniform distribution of gas, achieving a tangential gas intake effect. Therefore, the intake channel 135 can be located on the bottom surface of the positioning groove 133 or on the raised surface of the positioning boss 1111. In this embodiment, the intake channel 135 is located on the bottom surface of the positioning groove 133.

[0087] Please refer to Figure 7 and Figure 8The rotary cutter 140 is connected to the crushing cutter 150, and the rotary cutter 140 can be selectively rotated relative to the crushing cutter 150. Both the rotary cutter 140 and the crushing cutter 150 are housed within the mixed cutting zone 116.

[0088] Please refer to Figure 7 The rotary cutter 140 includes multiple rotary blades 141 and a side wall with multiple first through holes 142. The inner wall of the mixing cutter 130 or the inner wall of the mixing cutting area 116 of the main body 110 corresponding to the position of the rotary cutter 140 is provided with first cutting teeth 134 so that the mixed gas-liquid mixture is cut by the first cutting teeth 134 after passing through the first through holes 142.

[0089] In this embodiment, the first cutting tooth 134 is located on the cutting segment 132 of the hybrid cutting member 130, therefore, the rotating cutting member 140 is accommodated in the cutting segment 132. In other embodiments, when the first cutting tooth 134 is located on the inner wall surface of the hybrid cutting area 116 of the main body 110, the rotating cutting member 140 is directly accommodated in the hybrid cutting area 116, and in this case, the hybrid cutting block may not have a cutting segment 132. However, for the convenience of production and processing of each structure, the first cutting tooth 134 is preferably designed according to the scheme of this embodiment.

[0090] When the rotating water and gas mix in the mixing section 131 of the mixing cutting component 130, the water carrying the gas-water mixture formed by small bubbles continues to rotate and flow until it comes into contact with the rotating cutting component 140. The gas-water mixture drives the rotating blades 141 to rotate. After the small bubbles are broken by the rotation of the rotating blades 141, they are thrown out from the first through hole 142 on the side wall due to the centrifugal force. They are broken again by the first through hole 142. The broken bubbles are thrown onto the first cutting teeth 134 through the first through hole 142, broken again by the first cutting teeth 134 and bounced back. Then, they are broken again by the water flow through the breaking cutting component 150 and discharged in the form of micro-nano bubble water.

[0091] This invention adjusts the direction of water flow through various structures and incorporates multiple structures for breaking up air bubbles along the water's path. This causes the air-water mixture to undergo multiple breaks during flow, ultimately shattering small air bubbles into micro-nano bubbles. These micro-nano bubbles then mix and disperse thoroughly with the water, forming micro-nano bubble water. By repeatedly breaking up the air bubbles in the air-water mixture, the generation of micro-nano bubble water can be achieved without pressurization. Furthermore, the compact design of the bubble-breaking structures makes the micro-nano bubble generator 100 small in size and suitable for a wide range of applications.

[0092] In this embodiment, in order to ensure the bubble breaking effect, the aperture of the end face of the mixing section 131 near the cutting section 132 is smaller than the diameter of the rotary cutter 140, so that all the gas-liquid mixture flowing out of the mixing section 131 needs to pass through the rotary cutter 140 to be discharged, ensuring that all the bubbles in the gas-liquid mixture can be broken by the rotary cutter 140 and the first cutting tooth 134.

[0093] In this embodiment, in order to improve the bubble breaking effect, the first cutting teeth 134 extend along the axial direction of the mixing cutting member 130 and are inclined in the same direction. Multiple first cutting teeth 134 are connected in sequence so that the cross-section of the cutting segment 132 is serrated.

[0094] Please refer to Figure 8 In this embodiment, the crushing and cutting component 150 is located on the surface of the cutting section 132 away from the mixing section 131, and the crushing and cutting component 150 abuts between the mixing and cutting component 130 and the mounting base 170, so that the mixing and cutting component 130 and the mounting base 170 position the crushing and cutting component 150 and the rotating cutting component 140.

[0095] The surface of the crushing and cutting component 150 near the rotating cutting component 140 is provided with a second cutting tooth 151. The crushing and cutting component 150 is also provided with a fluid channel 152, and the cutting section 132 and the inner cavity of the mounting base 170 are connected through the fluid channel 152.

[0096] After the gas-water mixture is thrown out from the mixing section 131 by the rotating blade 141 to the first cutting tooth 134, it is bounced back by the first cutting tooth 134 and can be further cut by the second cutting tooth 151 on the surface of the crushing and cutting element 150 to further break the bubbles. After being broken multiple times, the bubbles flow out from the fluid channel 152 of the crushing and cutting element 150 with the water flow.

[0097] In this embodiment, the crushing and cutting component 150 includes a central cutting area 153, an edge cutting area 154, and a plurality of connecting parts 155. The central cutting area 153 and the edge cutting area 154 are connected by the connecting parts 155, and a fluid channel 152 is formed between the central cutting area 153, the edge cutting area 154, and two adjacent connecting parts 155.

[0098] Specifically, the crushing and cutting component 150 is disc-shaped, with a central cutting area 153 as the inner circular surface and an edge cutting area 154 as the outer annular surface. Four connecting portions 155 are evenly spaced and used to connect the central cutting area 153 and the edge cutting area 154. Therefore, there are also four fluid channels 152, located outside the central cutting area 153 and inside the edge cutting area 154. Simultaneously, the edge cutting area 154 can also serve as the area that abuts against the mixing and cutting component 130 and the mounting base 170.

[0099] In this embodiment, in order to ensure the gas crushing effect, the diameter of the central cutting area 153 is larger than the diameter of the rotating cutting element 140, so that the gas-water mixture entering the rotating cutting element 140 cannot be directly discharged through the gap between the rotating blades 141, but must be thrown onto the side wall of the rotating cutting element 140 and flow out after multiple crushing.

[0100] Meanwhile, since the crushing and cutting component 150 is provided with a second cutting tooth 151, a portion of the gas-water mixture that passes through the rotating blade 141 and directly contacts the crushing and cutting component 150 will also be cut and broken by the second cutting tooth 151 to obtain micro-nano bubbles with smaller particle size.

[0101] In this embodiment, the surface of the crushing and cutting member 150 near the rotating cutting member 140 is provided with second cutting teeth 151, that is, the center cutting area 153, the edge cutting area 154 and the connecting part 155 are all provided with second cutting teeth 151 to enhance the crushing effect of bubbles.

[0102] In other embodiments, the second cutting tooth 151 may be provided only on the central cutting area 153, or the second cutting tooth 151 may be provided on the central cutting area 153 and the connecting part 155, as long as the bubble breaking effect is guaranteed.

[0103] In this embodiment, the rotatable connection between the rotary cutting component 140 and the crushing cutting component 150 is achieved through a rotatable mounting fit between the protrusion and the through hole, as detailed below.

[0104] The rotary cutting component 140 is provided with a first mounting part 143, and the crushing cutting component 150 is provided with a second mounting part 156. The first mounting part 143 and the second mounting part 156 are respectively a protrusion or a through hole. The first mounting part 143 and the second mounting part 156 cooperate to allow the rotary cutting component 140 and the crushing cutting component 150 to be selectively rotated and connected.

[0105] In this embodiment, the first mounting part 143 is a protrusion and the second mounting part 156 is a through hole. After the protrusion of the rotating cutter 140 passes through the through hole of the crushing cutter 150, it is limited at the far end of the protrusion. The limiting method can be the existing method, as long as the rotating cutter 140 can be prevented from falling off, and the rotating cutter 140 can be selectively rotated relative to the crushing cutter 150.

[0106] Please refer to Figure 9In this embodiment, the separating cutter 160 is located on the side of the crushing cutter 150 away from the rotating cutter 140 and is housed within the mixing cutter zone 116. After the mounting base 170 is threadedly sealed to the main body 110, the mounting base 170 extends into the mixing cutter zone 116 and abuts against the crushing cutter 150. A limiting platform is provided within the mounting base 170, and the separating cutter 160 is limited within the mounting base 170 by the limiting platform to prevent the separating cutter 160 from coming out.

[0107] The separating and cutting component 160 includes a base plate 162 with multiple second through holes 161, which is spaced apart from the crushing and cutting component 150. The second through holes 161 on the base plate 162 of the separating and cutting component 160 can further crush a small portion of larger air bubbles and help to evenly distribute micro-nano bubbles and water. At the same time, the separating and cutting component 160 can also buffer the micro-nano bubble water, releasing some of the acceleration generated during the processes of rotational flow, centrifugal force ejection, and the rebound of the first cutting teeth 134, thus preventing excessive discharge pressure and affecting the user experience.

[0108] In this embodiment, there are two separating and cutting components 160, with their base plates 162 spaced apart. In other embodiments, the number of separating and cutting components 160 can be adjusted as needed, but two are preferred to avoid affecting the breaking effect of micro-nano bubbles.

[0109] In this embodiment, the separating and cutting component 160 also includes a side plate 163, which is located between the bottom plate 162 and the breaking and cutting component 150 and between two adjacent bottom plates 162, to facilitate the uniform distribution of water and micro-nano bubbles.

[0110] In this embodiment, in order to prevent water and air leakage from occurring in the micro-nano bubble generator 100, a first sealing groove 191 is provided on the side wall of the mixing cutting part 130 that contacts the main body 110. The first sealing groove 191 contains a sealing element. The first sealing groove 191 is located on the side of the gas channel away from the air inlet 115, so that the gas can smoothly enter the inner cavity without leakage.

[0111] In this embodiment, a second sealing groove 192 is provided at the connection between the main body 110 and the mounting base 170. The second sealing groove 192 contains a sealing element to prevent leakage of micro-nano bubble water.

[0112] In this embodiment, for ease of installation, the main body 110 is threadedly connected to the mounting base 170.

[0113] The working principle of the micro / nano bubble generator 100 provided in this embodiment is as follows:

[0114] Please refer to Figure 2Water enters the spiral section 113 from the inlet section 112, and under the action of the spiral section formed by the ribs 114, the horizontal flow changes to a rotating flow. When the water enters the inner cavity of the main body 110, a negative pressure is generated in the micro-nano bubble generator 100, causing the one-way valve 120 to open. Gas enters from the air inlet 115, passes through the gas channel, and then enters the inner cavity of the mixing and cutting component 130 tangentially from the air inlet channel 135. It comes into tangential contact with the rotating water and mixes evenly to form a gas-water mixture. The gas is dispersed into bubbles when it comes into contact with the water. The rotating water and the gas-water mixture are accelerated by the Venturi structure formed by the main body 110 and the mixing and cutting component 130, and flow to the rotating cutting component 140, causing the rotating cutting component 140 to rotate. The gas-water mixture is thrown out by centrifugal force and / or broken by the second cutting tooth 151 of the crushed cutting component 150 after passing through the rotating blades 141.

[0115] The gas-water mixture ejected by centrifugal force passes through the first through-hole 142 on the side wall of the rotating cutter 140, where the bubbles are broken and thrown onto the first cutting tooth 134 of the mixing cutter 130 for further breakage. The broken bubbles impacting the first cutting tooth 134 are bounced back and broken again by the second cutting tooth 151 of the breaking cutter 150. The resulting micro-nano bubble water flows out along the fluid channel 152 on the breaking cutter 150 (or a small portion of the micro-nano bubble water is bounced back and flows out directly through the fluid channel 152). The micro-nano bubble water passes through the second through-hole 161 on the base of the two separating cutters 160, where the bubbles are broken and evenly distributed in the water before being discharged, resulting in micro-nano bubble water with small, numerous, and evenly distributed bubbles.

[0116] Second Embodiment

[0117] Please refer to Figure 10 This utility model provides a household water supply pipe micro-nano bubble system 10, including an inlet pipe 200, an outlet pipe 300, and a micro-nano bubble generator 100 provided in the first embodiment. The inlet pipe 200 is connected to the main body 110 by a threaded engagement and sealing, and the outlet pipe 300 is connected to the mounting base 170 by a threaded engagement and sealing.

[0118] The working principle of the micro-nano bubble system 10 for household water supply pipes provided in this embodiment is as follows:

[0119] When the end water element on one side of the outlet pipe 300 is opened, water flows from the inlet pipe 200 into the micro-nano bubble generator 100. At the same time, the pipe of the household water supply micro-nano bubble system 10 is depressurized, and a siphon negative pressure is formed in the pipe of the household water supply micro-nano bubble system 10. Air pushes open the one-way valve 120 rod, introduces gas into the micro-nano bubble generator 100, mixes with water, and forms micro-nano bubble water after being processed by the micro-nano bubble generator 100. The water then flows along the outlet pipe 300 to the end water element.

[0120] When the end water element is turned off, water stops entering, the pipeline pressure of the household water supply pipe micro-nano bubble system 10 increases, the one-way valve 120 closes, gas cannot enter the household water supply pipe micro-nano bubble system 10, and a gas film is formed on the gas channel. Therefore, water cannot leak from the household water supply pipe micro-nano bubble system 10, and the micro-nano bubble generator 100 stops working.

[0121] In this embodiment, the micro / nano bubble generator 100 is directly connected to the end-use water element via the outlet pipe 300. In other embodiments, to increase the water consumption of the end-use water element, a direct connection pipe can be provided between the inlet pipe 200 and the outlet pipe 300, and the flow direction of the inlet water can be controlled by a valve or other structure. This can both increase the water output of the end-use water element and clean the pipe.

[0122] Meanwhile, since the existing household water supply pipeline, i.e. the outlet pipe 300, is generally about 100 meters long, and the time from the generation to the disappearance of micro-nano bubbles is generally 60 to 90 seconds, and the water flow rate is calculated based on the municipal flow rate of 2 m / s, micro-nano bubble water will also have micro-nano bubbles from the generation to the farthest end water element. Therefore, the micro-nano bubble generating device 100 and the household water supply pipeline micro-nano bubble system 10 provided by this utility model can generate micro-nano bubble water for the entire outlet pipe 300 of the household water supply pipeline.

[0123] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A micro-nano bubble generating device, characterized by, The device comprises a main body, a one-way valve, a mixing cutter, a rotating cutter, a crushing cutter and a mounting base. The main body is through at both axial ends, and the inner cavity of the main body is divided into a water inlet area and a mixing cutter area by a first surface. The water inlet area comprises a water inlet section and a spiral section arranged in sequence, and the inner wall surface of the spiral section is provided with a spiral part for rotating water. The mixing cutter is installed in the mixing cutter area, and a gas passage is formed between the mixing cutter and the first surface, and the gas passage, the spiral section and the inner cavity of the mixing cutter are in communication with each other. The rotating cutter is connected with the crushing cutter, and the rotating cutter is selectively rotatable relative to the crushing cutter. The rotating cutter comprises a plurality of rotating blades and a side wall surface provided with a plurality of first through holes. The inner wall surface of the mixing cutter corresponding to the position of the rotating cutter or the inner wall surface of the mixing cutter area of the main body is provided with first cutting teeth. The surface of the crushing cutter close to the rotating cutter is provided with second cutting teeth, and the crushing cutter is further provided with a fluid passage.

2. The apparatus of claim 1, wherein, The mounting base is sealingly connected to one end of the mixing cutter area away from the water inlet area. The inner cavity of the mixing cutter comprises a mixing section and a cutting section along the axial direction. The spiral section and the mixing section form a Venturi structure. The spiral part is a plurality of ribs arranged on the inner wall surface of the spiral section.

3. The apparatus of claim 2, wherein, The number of ribs is 3-12. The gas passage is formed with a plurality of tangential gas inlets away from the gas inlet. The width of the gas inlet gradually decreases along the direction close to the inner cavity of the mixing cutter. The number of gas inlets is 3-12. The first surface of the main body is provided with a positioning boss protruding towards the mixing cutter area.

4. The apparatus of claim 2, wherein, The surface of the mixing cutter at one end of the mixing section is provided with a positioning groove. The rotating cutter is accommodated in the cutting section of the mixing cutter. The first cutting teeth extend along the axial direction of the mixing cutter and are arranged obliquely. A plurality of first cutting teeth are connected in sequence, so that the cross section of the cutting section is in the shape of a flower tooth. The breaking cutting member is in abutment between the mixing cutting member and the mounting base, and the cutting section and the inner cavity of the mounting base are connected through the fluid channel.

5. The apparatus of claim 2, wherein, The aperture of the hole of the mixing section near the end face of the cutting section is less than or equal to the diameter of the rotating cutting member.

6. The apparatus of claim 1, wherein, The breaking cutting member comprises a central cutting zone, an edge cutting zone and a plurality of connecting portions, the central cutting zone and the edge cutting zone are connected through the connecting portions, and the fluid channel is formed between the central cutting zone, the edge cutting zone and two adjacent connecting portions. The diameter of the central cutting zone is greater than or equal to the diameter of the rotating cutting member. The second cutting teeth are arranged on the central cutting zone, the edge cutting zone and the connecting portions.

7. The apparatus of claim 1, wherein, The rotating cutting member is provided with a first mounting portion, and the breaking cutting member is provided with a second mounting portion, the first mounting portion and the second mounting portion are respectively a protrusion or a through hole, and the first mounting portion and the second mounting portion are matched to selectively rotate and connect the rotating cutting member and the breaking cutting member. The first mounting portion is a protrusion, and the second mounting portion is a through hole.

8. The apparatus of claim 1, wherein, The device further comprises at least one separation cutting member, the separation cutting member is located on the side of the breaking cutting member away from the rotating cutting member, and the separation cutting member comprises a bottom plate provided with a plurality of second through holes, and the bottom plate is spaced apart from the breaking cutting member. When the separation cutting member is a plurality of separation cutting members, the plurality of bottom plates are spaced apart. The separation cutting member further comprises a side plate located between the bottom plate and the breaking cutting member, and when the separation cutting member is a plurality of separation cutting members, the side plate is also located between two adjacent bottom plates.

9. The apparatus of claim 1, wherein, The side wall surface of the mixing cutting member in contact with the main body is provided with a first sealing groove, the first sealing groove contains a sealing member, and the first sealing groove is located on the side of the gas channel away from the gas inlet. The connection between the main body and the mounting base is provided with a second sealing groove, and the second sealing groove contains a sealing member. The main body and the mounting base are threadedly connected.

10. A domestic water supply pipe micro-nano bubble system, characterized in that, The device comprises a water inlet pipeline, a water outlet pipeline and the device according to any one of claims 1-9, the water inlet pipeline is sealingly connected with the main body, and the water outlet pipeline is sealingly connected with the mounting base.

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