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

Abstract

The invention 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] The present invention relates to the technical field of household water purification, and in particular to a micro-nano bubble generating device and a household water supply pipeline micro-nano bubble system. Background Art

[0002] As people's living standards improve, people pay more attention to healthy water use. Therefore, micro-nano bubble technology with deep cleaning ability, high oxygen content and adsorption capacity has attracted more and more attention.

[0003] Most of the products with micro-nano bubble technology on the market are mainly concentrated in the water end, such as kitchen faucet bubblers, bathroom faucet bubblers and shower heads; while in domestic water pipes, the development of micro-nano bubble technology is still relatively slow. The main reason is that traditional micron bubble generating devices require air compressors, water pumps, large air dissolving tanks and other devices or gas-liquid mixing pumps, stabilization tanks and other devices. These necessary micro-nano bubble generating devices are bulky, noisy and expensive, which limits the application of micro-nano bubble technology in domestic water pipes.

[0004] Prior art CN202311211646.X discloses a pumpless micro-nano bubble generating device. The entire water use process does not require air extraction through a self-priming pump, nor does it require an air pump for air blowing. The air automatically enters the pressure tank under the negative pressure of the water flow, and the pressure tank pressurizes the water flow and gas to generate micro-nano bubbles. Although the device saves the use of a pump body and reduces the waste of resources, it mainly uses a pressure tank to achieve gas-liquid mixing, and has high requirements for water pressure. The water pressure of household pipelines is difficult to meet the needs of the pressure tank; at the same time, it is necessary to ensure that the pressure tank has a stable water flow, so the water volume has a greater impact on the distribution and size of the bubbles; and the pressure tank is large, the equipment occupies a large space, and is not suitable for installation in small-sized residential buildings.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a micro-nano bubble generating device and a household water supply pipeline micro-nano bubble system.

[0007] The present invention is achieved in that:

[0008] In a first aspect, the present invention provides a micro-nano bubble generating device, comprising a main body, a one-way valve, a mixing cutting element, a rotating cutting element, a crushing cutting element and a mounting base.

[0009] The two ends of the main body are connected in 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 area comprises a water inlet section and a spiral section which are arranged in sequence, and the inner wall surface of the spiral section is provided with a spiral part for rotating water.

[0011] The mixing cutting piece is installed in the mixing cutting area and forms a gas channel with the first surface. The gas channel, the spiral section and the inner cavity of the mixing cutting piece are all connected to each other. An air inlet is opened on the main body, and a one-way valve is installed in the air inlet, which is connected to the gas channel.

[0012] The rotating cutting piece is connected with the crushing cutting piece and can selectively rotate relative to the crushing cutting piece. Both the rotating cutting piece and the crushing cutting piece are accommodated in the mixing cutting area.

[0013] The rotating cutting member includes a plurality of rotating blades and a side wall surface provided with a plurality of first through holes. First cutting teeth are provided on the inner wall surface of the mixing cutting member corresponding to the position of the rotating cutting member or the inner wall surface of the mixing cutting area of ​​the main body, so that the mixed gas-liquid mixture can be cut by the first cutting teeth after passing through the first through holes.

[0014] The surface of the crushing and cutting member close to the rotating cutting member is provided with second cutting teeth, and the crushing and cutting member is also provided with a fluid channel.

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

[0016] In an optional embodiment, the inner cavity of the mixing and cutting member includes a mixing section and a cutting section along the axial direction, and the mixing section is located on a side of the spiral section close to the main body.

[0017] Preferably, the spiral section and the mixing section form a Venturi structure, the reduced diameter portion of the Venturi structure is located on the spiral section, the expanded diameter portion is located on the mixing section, the pharynx is located on the spiral section and / or the mixing section, and the pharynx connects the reduced diameter portion and the expanded diameter portion.

[0018] Preferably, the spiral portion is a plurality of ribs arranged on the inner wall surface of the spiral segment, and the plurality of ribs are designed to be rotated and inclined.

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

[0020] In an optional embodiment, a plurality of tangential air inlet channels are formed at one end of the gas channel away from the air inlet.

[0021] Preferably, the width of the air inlet channel decreases gradually along a direction approaching the inner cavity of the mixing and cutting element.

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

[0023] Preferably, the first surface of the main body is provided with a positioning boss protruding toward the mixing and cutting area, and the surface of the mixing and cutting piece at one end of the mixing section is provided with a positioning groove, and the positioning boss cooperates with the positioning groove for positioning.

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

[0025] In an optional embodiment, the rotating cutting element is accommodated in the cutting section of the mixing cutting element, the side wall surface of the cutting section is provided with first cutting teeth, and the crushing cutting element 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 mixing cutting piece and are arranged obliquely, and a plurality of first cutting teeth are connected in sequence so that the cross section of the cutting section is in a flower-tooth shape.

[0027] Preferably, the crushing cutting piece abuts between the mixing cutting piece and the mounting base, and the cutting section and the inner cavity of the mounting base are connected through a fluid channel.

[0028] In an optional embodiment, the diameter of the hole on the end surface of the mixing section close to the cutting section is smaller than or equal to the diameter of the rotating cutting element.

[0029] Preferably, the diameter of the hole on the end surface of the mixing section close to the cutting section is smaller than the diameter of the rotating cutting element.

[0030] In an optional embodiment, the crushing cutting element includes a central cutting area, an edge cutting area and a plurality of connecting parts, the central cutting area and the edge cutting area are connected through 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 rotating cutting element; more preferably, the diameter of the central cutting area is greater than the diameter of the rotating cutting element.

[0032] Preferably, second cutting teeth are provided on the central cutting area, the edge cutting area and the connecting portion.

[0033] In an optional embodiment, a first mounting portion is provided on the rotating cutting member, and a second mounting portion is provided on the crushing cutting member. The first mounting portion and the second mounting portion are respectively protrusions or through holes. The first mounting portion and the second mounting portion cooperate so that the rotating cutting member and the crushing cutting member can be selectively rotatably connected.

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

[0035] In an optional embodiment, at least one separating cutting piece is further included, which is located on a side of the crushing cutting piece away from the rotating cutting piece, and the separating cutting piece includes a bottom plate having a plurality of second through holes, and the bottom plate is spaced apart from the crushing cutting piece.

[0036] Preferably, when there are multiple separation cutting pieces, the multiple bottom plates are arranged at intervals.

[0037] Preferably, the separation cutting piece further comprises a side plate, and the side plate is located between the bottom plate and the crushing cutting piece; when there are multiple separation cutting pieces, 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 where the mixing and cutting member contacts the main body, a sealing member is accommodated in the first sealing groove, and the first sealing groove is located on a side of the gas passage away from the gas inlet.

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

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

[0041] In a second aspect, the present invention provides a household water supply pipe micro-nano bubble system, comprising an inlet pipe, an outlet pipe and a device as described in any of the foregoing embodiments, wherein the inlet pipe is sealedly connected to the main body, and the outlet pipe is sealedly connected to the installation base.

[0042] The present invention has the following beneficial effects:

[0043] The present invention provides a micro-nano bubble generating device and a micro-nano bubble system for a household water supply pipeline. By arranging a spiral portion on the spiral section of the main body, water enters the main body and rotates into the inner cavity of the mixing cutting piece under the action of the spiral portion. The gap between the mixing cutting piece and the main body forms a gas channel. When water enters the main body, the pressure in the inner cavity of the micro-nano bubble generating device changes, so that the one-way valve in the air inlet is opened, and the gas enters from the air inlet, and mixes with the water in the inner cavity of the mixing cutting piece through the gas channel to form a gas-water mixture. Since the water enters in rotation, the gas will be broken into small bubbles by the water during the mixing process of the gas and water, and then continue to rotate with the water until it contacts the rotating blades of the rotating cutting piece, and then drive the rotating blades to rotate, and throw the gas-water mixture out of the first through hole on the side wall of the rotating cutting piece, and break the small bubbles again; the thrown gas-water mixture contacts the first cutting tooth, and the bubble is broken again, and is rebounded and then contacts the second cutting tooth on the surface of the broken cutting piece to break and / or is discharged through the fluid channel to form micro-nano bubble water. The device does not require pressurization or the installation of various pump bodies required by the micro-nano bubble technology. The overall structure of the device is simple, compact and highly integrated, with a small installation space, and can be used for the installation of various household water supply pipes. At the same time, the device can be directly connected to the household water inlet and outlet pipes, and through the coordination between various structures, multiple cutting of the gas can be achieved without pressurization, thereby obtaining micro-nano bubble water, and fully treating the entire household water supply pipe with micro-nano bubbles, which has the effect of enhancing the flushing of oil stains, etc., and is beneficial to various uses such as terminal drinking and bathing, beauty, health, washing, and dishwashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0045] Figure 1 A schematic structural diagram of a micro-nano bubble generating device provided in the first embodiment of the present invention;

[0046] Figure 2 A cross-sectional view of a micro-nano bubble generating device provided in a first embodiment of the present invention;

[0047] Figure 3 A cross-sectional view of a main body provided for a first embodiment of the present invention;

[0048] Figure 4 A schematic structural diagram of a hybrid cutting member provided in a first embodiment of the present invention;

[0049] Figure 5A schematic structural diagram of a hybrid cutting member provided in a first embodiment of the present invention;

[0050] Figure 6 A cross-sectional view of a mixing cutting element provided in a first embodiment of the present invention;

[0051] Figure 7 A schematic structural diagram of a rotary cutting member provided in a first embodiment of the present invention;

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

[0053] Fig. 9 A schematic structural diagram of a separation and cutting member provided in a first embodiment of the present invention;

[0054] Fig.10 A cross-sectional view of a micro-nano bubble system for household water supply pipes provided in a second embodiment of the present invention.

[0055] Main component symbol description: 100-micro-nano bubble generating device; 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 area; 120-check valve; 130-mixing and cutting element; 131-mixing section; 132-cutting section; 133-positioning groove; 134-first cutting tooth; 135-air inlet channel; 140-rotating cutting element; 141-rotating Blade; 142-first through hole; 143-first mounting portion; 150-crushing cutting piece; 151-second cutting tooth; 152-fluid channel; 153-center cutting area; 154-edge cutting area; 155-connecting portion; 156-second mounting portion; 160-separating cutting piece; 161-second through hole; 162-bottom plate; 163-side plate; 170-mounting base; 191-first sealing groove; 192-second sealing groove; 10-micro-nano bubble system for household water supply pipeline; 200-water inlet pipeline. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be a clear and complete description of the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can 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 invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0059] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0060] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only 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 the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] First embodiment

[0063] Please refer to Figure 1 and 2 The present embodiment provides a micro-nano bubble generating device 100 , including a main body 110 , a one-way valve 120 , a mixing cutting member 130 , a rotating cutting member 140 , a crushing cutting member 150 , a separating cutting member 160 and a mounting base 170 .

[0064] Please refer to Figure 3The main body 110 is connected at both ends along the axial direction, and the inner cavity of the main body 110 is divided into two axial sections of a water inlet area and a mixing and cutting area 116 through a first surface 111. The mounting base 170 is sealed and connected to one 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 through-going in the axial direction, 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 main body 110, the left side of the first surface 111 is the water inlet area, and the right side is the mixing and cutting area 116. It can be understood that water enters the inner cavity of the main 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 which are sequentially arranged in a direction close to the first surface 111 , and an end surface of the spiral section 113 away from one end of the water inlet section 112 is the first surface 111 .

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

[0069] In this embodiment, the spiral portion is a plurality of ribs 114 disposed on the inner wall surface of the spiral segment 113 . The plurality of ribs 114 are designed to be rotated and tilted 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 portion may also be other structures, such as spiral ribs 114 or spiral grooves, as long as the flow mode of water can be changed to rotational flow.

[0071] In this embodiment, the number of the ribs 114 of the spiral portion is 8, and the 8 ribs 114 are evenly spaced.

[0072] Please refer to Figures 4 to 6 The mixing and cutting member 130 is installed in the mixing and cutting area 116 and forms a gas channel (such as 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 cutting piece 130 are all interconnected; an air inlet 115 is opened on the main body 110, and the 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 mixing cutting piece 130 is installed in the main body 110, since the mixing cutting piece 130 and the main body 110 are two different structures, a gap is bound to be formed at the connection between the two after installation. The present invention 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, thereby achieving the effect of introducing gas into the micro-nano bubble generating device 100.

[0074] The micro-nano bubble generating device 100 provided by the present invention does not need to be equipped with an additional separate air intake device or air intake component, thereby realizing a high degree of integration of the micro-nano bubble generating device 100 and reducing the installation space. When the pressure in the micro-nano bubble generating device 100 changes, the one-way valve 120 opens, and the gas enters the inner cavity of the micro-nano bubble generating device 100 from the air inlet 115 through the gas channel, thereby achieving the mixing of water and gas to form a gas-water mixture.

[0075] It is understandable that, since the gap between the main body 110 and the mixing and cutting member 130 is not a strip-shaped gap but a planar gap, the gas channel also presents a planar structure between the main body 110 and the mixing and cutting member 130. When the one-way valve 120 is closed, the gas can form an air film in the gas channel, and can also prevent water from entering the gas channel.

[0076] In order to optimize the way gas enters and facilitate the formation of micro-nano bubbles, the gas and water are cut into small bubbles at the initial stage of mixing. The implementation method is as follows:

[0077] In this embodiment, a plurality of tangential inlet channels 135 are formed at one end of the gas channel away from the inlet port 115. The inlet channels 135 are opened on the surface of the mixing and cutting member 130 close to the first surface 111. In other embodiments, the inlet channels 135 may also be opened on the first surface 111.

[0078] After the gas enters from the gas inlet 115, it passes through the gas channel and enters the inner cavity of the mixing and cutting member 130 from the gas inlet channel 135 at the end of the gas channel to mix with water. The gas inlet channel 135 is tangent to the cross section of the inner cavity of the mixing and cutting member 130, and the rotating water inlet method is conducive to the initial dispersion of the gas in the water, forming small bubbles, and the mixing of the gas and water is more complete and uniform.

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

[0080] In this embodiment, the number of the air inlet channels 135 is 8, and the 8 air inlet channels 135 are evenly spaced apart on the surface of the mixing and cutting member 130 .

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

[0082] In this embodiment, in order to promote the generation of micro-nano bubbles, the spiral section 113 and the mixing section 131 form a venturi structure, which includes a reduced diameter portion, a pharyngeal portion and an expanded diameter portion, and the power of the fluid can be increased when the fluid passes through. Therefore, the micro-nano bubble generating device 100 provided in this embodiment increases the flow rate of the inlet water flow on the water inlet side through the inner cavity structure of the body and the mixing and cutting member 130.

[0083] In this embodiment, the reduced diameter portion of the venturi structure is located on the spiral section 113, the expanded diameter portion is located on the mixing section 131, the pharynx is located on the spiral section 113 and the mixing section 131, and the pharynx connects the reduced diameter portion and the expanded diameter portion. In other embodiments, the pharynx may also be separately arranged on the spiral section 113 or the mixing section 131.

[0084] Due to the reduced diameter structure of the spiral section 113 and the spiral section composed of 8 ribs 114 arranged 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 the water flow speed is increased, but also the rotation ability is improved; in addition, the gas enters tangentially from the air inlet channel 135 and mixes with the water, so the gas and the rotating water flow also present a tangential mixing state, which is conducive to more uniform mixing of gas and liquid, and is also conducive to the preliminary separation of the 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 protruding toward the mixing and cutting area 116, and the mixing and cutting piece 130 is provided with a positioning groove 133 on the surface of one end of the mixing section 131. The positioning boss 1111 cooperates with the positioning groove 133 to position the main body 110 and the mixing and cutting piece 130 so that the main body 110 and the mixing and cutting piece 130 are positioned and installed.

[0086] Furthermore, the matching structure of the positioning boss 1111 and the positioning groove 133 is also conducive to the uniform distribution of gas and the tangential intake effect of gas, so 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 rotating cutting member 140 is connected to the crushing cutting member 150 , and the rotating cutting member 140 can selectively rotate relative to the crushing cutting member 150 . The rotating cutting member 140 and the crushing cutting member 150 are both accommodated in the mixing cutting area 116 .

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

[0089] In this embodiment, the first cutting teeth 134 are located on the cutting section 132 of the mixing cutting member 130, and therefore, the rotating cutting member 140 is accommodated in the cutting section 132. In other embodiments, when the first cutting teeth 134 are located on the inner wall surface of the mixing cutting area 116 of the main body 110, the rotating cutting member 140 is directly accommodated in the mixing cutting area 116, and in this case, the mixing cutting block may not be provided with the cutting section 132. However, in order to facilitate the production and processing of each structure, it is preferred to design the first cutting teeth 134 according to the scheme of this embodiment.

[0090] When the rotating water and gas are mixed in the mixing section 131 of the mixing and cutting member 130, the gas-water mixture formed by the water carrying small bubbles continues to rotate and flow until it contacts the rotating cutting member 140. The gas-water mixture drives the rotating blades 141 to rotate. After the small bubbles are broken by the rotating blades 141, they are thrown out from the first through holes 142 on the side wall due to the action of centrifugal force and are broken again by the first through holes 142. The broken bubbles are thrown onto the first cutting teeth 134 through the first through holes 142, are broken again by the first cutting teeth 134 and bounce back, and then follow the water flow through the breaking and cutting member 150 and are broken again before being discharged in the form of micro-nano bubble water.

[0091] The present invention adjusts the direction of water flow through various structures, and sets a plurality of structures for breaking bubbles at the position where the water flows, so that the gas-water mixture is broken multiple times during the flow, and finally the small bubbles therein are broken into micro-nano bubbles, which are fully mixed and dispersed with water to form micro-nano bubble water. By breaking the bubbles in the gas-water mixture multiple times, the process of generating micro-nano bubble water can be achieved without pressurization, and the relevant structure of breaking the bubbles is compactly designed, so that the overall structure of the micro-nano bubble generating device 100 is compact and applicable to many scenarios.

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

[0093] In this embodiment, in order to improve the bubble crushing effect, the first cutting teeth 134 extend along the axial direction of the mixing cutter 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 section 132 is in a flower tooth shape.

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

[0095] A second cutting tooth 151 is disposed on the surface of the crushing and cutting member 150 close to the rotating cutting member 140 . A fluid channel 152 is also disposed on the crushing and cutting member 150 . 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 to the first cutting tooth 134 through the rotating blade 141, it is rebounded 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 member 150 to further break up the bubbles. The bubbles that have been broken multiple times flow out from the fluid channel 152 of the crushing and cutting member 150 along with the water flow.

[0097] In this embodiment, the crushing cutting element 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 member 150 is in the shape of a disk, the central cutting area 153 is an inner circular surface, the edge cutting area 154 is an outer annular surface, and there are four connecting parts 155, which 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, which are located outside the central cutting area 153 and inside the edge cutting area 154. At the same time, the edge cutting area 154 can also serve as an area that abuts against the mixing and cutting member 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 discharged directly through the gap between the rotating blades 141, and must be thrown to the side wall of the rotating cutting element 140 and flow out after multiple crushing.

[0100] At the same time, since the crushing and cutting member 150 is provided with the second cutting teeth 151, part of the gas-water mixture that passes through the rotating blades 141 and directly contacts the crushing and cutting member 150 will also be cut and crushed by the second cutting teeth 151 to obtain micro-nano bubbles with smaller particle sizes.

[0101] In this embodiment, second cutting teeth 151 are distributed on the surface of the crushing cutting member 150 close to the rotating cutting member 140, that is, second cutting teeth 151 are arranged on the central cutting area 153, the edge cutting area 154 and the connecting part 155 to enhance the crushing effect of bubbles.

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

[0103] In this embodiment, the rotational connection between the rotating cutting member 140 and the crushing cutting member 150 is achieved by the rotational mounting cooperation between the protrusion and the through hole, as follows.

[0104] The rotating cutting member 140 is provided with a first mounting portion 143, and the crushing cutting member 150 is provided with a second mounting portion 156. The first mounting portion 143 and the second mounting portion 156 are respectively protrusions or through holes. The first mounting portion 143 and the second mounting portion 156 cooperate to enable the rotating cutting member 140 and the crushing cutting member 150 to be selectively rotatably connected.

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

[0106] Please refer to Fig. 9In this embodiment, the separation cutting member 160 is located on the side of the crushing cutting member 150 away from the rotating cutting member 140 and is accommodated in the mixed cutting area 116. When the mounting base 170 is threadedly sealed with the main body 110, the mounting base 170 extends into the mixed cutting area 116 and abuts against the crushing cutting member 150. A limiting platform is provided in the mounting base 170, and the separation cutting member 160 is limited by the limiting platform in the mounting base 170 to prevent the separation cutting member 160 from falling out.

[0107] The separation and cutting member 160 includes a bottom plate 162 having a plurality of second through holes 161, and the bottom plate 162 is spaced apart from the crushing and cutting member 150. The second through holes 161 on the bottom plate 162 of the separation and cutting member 160 can further crush a small number of bubbles with larger particle sizes, and assist in evenly distributing the micro-nano bubbles and water; at the same time, the separation and cutting member 160 can also buffer the micro-nano bubble water, releasing part of the acceleration generated by the micro-nano bubble water during the process of rotating flow, centrifugal force throwing out, and rebound of the first cutting teeth 134, so as to avoid excessive pressure of the discharge, which affects the user experience.

[0108] In this embodiment, there are two separation cutting members 160, and the bottom plates 162 of the two separation cutting members 160 are arranged at intervals. In other embodiments, the number of separation cutting members 160 can be adjusted as needed, but preferably two to avoid affecting the breaking effect of micro-nano bubbles.

[0109] In this embodiment, the separation and cutting member 160 further includes a side plate 163 , and the side plate 163 is located between the bottom plate 162 and the crushing and cutting member 150 and between two adjacent bottom plates 162 , so as to facilitate the uniform distribution of water and micro-nano bubbles.

[0110] In this embodiment, in order to ensure that the micro-nano bubble generating device 100 does not leak water or air, a first sealing groove 191 is provided on the side wall surface where the mixing cutting piece 130 contacts the main body 110. The first sealing groove 191 contains a sealing piece. 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 enter the inner cavity smoothly without leaking.

[0111] In this embodiment, a second sealing groove 192 is provided at the connection between the main body 110 and the mounting base 170 , and a sealing member is accommodated in the second sealing groove 192 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 micro-nano bubble generating device 100 provided in this embodiment has the following working principle:

[0114] Please refer to Figure 2, water enters the spiral section 113 from the water inlet section 112, and under the action of the spiral part formed by the ribs 114, the horizontal flow is transformed into a rotating flow. When water enters the inner cavity of the main body 110, negative pressure is generated in the micro-nano bubble generating device 100, so that the one-way valve 120 is opened, and the gas enters from the air inlet 115, passes through the gas channel, and then enters the inner cavity of the mixing cutting member 130 from the air inlet channel 135 tangentially to contact and evenly mix with the rotating water to form a gas-water mixture. The gas is dispersed into bubbles when it contacts the water. The rotating water and the gas-water mixture are accelerated through the Venturi structure formed by the main body 110 and the mixing cutting member 130, and rotate to the rotating cutting member 140, driving the rotating cutting member 140 to rotate, and the gas-water mixture is thrown out by the action of centrifugal force and / or is broken by the second cutting teeth 151 of the broken cutting member 150 after passing through the rotating blades 141.

[0115] The gas-water mixture thrown out by the centrifugal force passes through the first through hole 142 on the side wall of the rotating cutting member 140, and the bubbles are broken and thrown to the first cutting teeth 134 of the mixing cutting member 130 and broken again. The bubbles that hit the first cutting teeth 134 and are broken are rebounded again and broken again by the second cutting teeth 151 of the crushing cutting member 150, and the obtained micro-nano bubble water flows out along the fluid channel 152 on the crushing cutting member 150 (or a small part of the micro-nano bubble water flows out directly through the fluid channel 152 after being rebounded). The micro-nano bubble water passes through the second through hole 161 on the base of the two separation cutting members 160, and the bubbles are broken and evenly distributed in the water and discharged, so as to obtain micro-nano bubble water with small bubbles, large number and even distribution.

[0116] Second embodiment

[0117] Please refer to Fig.10 The present invention provides a household water supply pipe micro-nano bubble system 10, comprising an inlet pipe 200, an outlet pipe 300 and a micro-nano bubble generating device 100 provided in the first embodiment, wherein the inlet pipe 200 is threadedly matched and sealedly connected to a main body 110, and the outlet pipe 300 is threadedly matched and sealedly connected to a mounting base 170.

[0118] The present embodiment provides a household water supply pipeline micro-nano bubble system 10, and its working principle is as follows:

[0119] When the terminal water-using element on one side of the water outlet pipe 300 is opened, water flows into the micro-nano bubble generating device 100 from the water inlet pipe 200, and at the same time, the pipe of the micro-nano bubble system 10 of the household water supply pipe is depressurized, and a siphon negative pressure is formed in the pipe of the micro-nano bubble system 10 of the household water supply pipe. The air pushes open the one-way valve 120 rod, and gas is introduced into the micro-nano bubble generating device 100 and mixed with water. After being processed by the micro-nano bubble generating device 100, micro-nano bubble water is formed and flows along the water outlet pipe 300 to the terminal water-using element.

[0120] When the end water-using element is closed, water stops entering, the pipeline pressure of the household water supply pipeline micro-nano bubble system 10 increases, the one-way valve 120 is closed, the gas cannot enter the household water supply pipeline micro-nano bubble system 10, and an air film is formed on the gas channel. Therefore, water cannot leak from the household water supply pipeline micro-nano bubble system 10, and the micro-nano bubble generating device 100 stops working.

[0121] In this embodiment, the micro-nano bubble generating device 100 is directly connected to the terminal water-using element through the water outlet pipe 300. In other embodiments, in order to increase the water demand of the terminal water-using element, a directly connected pipe can be provided between the water inlet pipe 200 and the water outlet pipe 300, and the flow direction of the inlet water can be controlled by a valve or other structure, which can not only increase the water output of the terminal water-using element, but also achieve the cleaning of the pipe.

[0122] At the same time, since the back pipeline of the existing household water supply pipeline, that is, the water outlet pipeline 300 is generally about 100 meters, and the time from the generation of micro-nano bubbles to the disappearance of bubbles is generally 60 to 90 seconds, the water flow rate is calculated based on the municipal flow rate of 2m / s, and there are also micro-nano bubbles in the micro-nano bubble water from the time it is generated to the time it flows to the farthest end water-using element. Therefore, the micro-nano bubble generating device 100 and the household water supply pipeline micro-nano bubble system 10 provided by the present invention can produce micro-nano bubble water for the entire water outlet pipeline 300 of the household water supply pipeline. Cleaning effect.

[0123] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A micro-nano bubble generating device, characterized in that: It includes a main body, a one-way valve, a mixing cutting piece, a rotating cutting piece, a crushing cutting piece and a mounting base; The two ends of the main body are connected in the axial direction, and the inner cavity of the main body is divided into two axial sections of a water inlet area and a mixing and cutting area through a first surface; The water inlet area includes a water inlet section and a spiral section which are arranged in sequence, and the inner wall surface of the spiral section is provided with a spiral part for rotating water; The mixing cutting element is installed in the mixing cutting area and forms a gas channel with the first surface, and the gas channel, the spiral section and the inner cavity of the mixing cutting element are all connected to each other; the main body is provided with an air inlet, the one-way valve is installed in the air inlet, and the air inlet is connected to the gas channel; The rotating cutting member is connected to the crushing cutting member, and the rotating cutting member can selectively rotate relative to the crushing cutting member, and the rotating cutting member and the crushing cutting member are both accommodated in the mixed cutting area; The rotating cutting member includes a plurality of rotating blades and a side wall surface provided with a plurality of first through holes, and first cutting teeth are provided on the inner wall surface of the mixing cutting member or the inner wall surface of the mixing cutting area of ​​the main body corresponding to the position of the rotating cutting member, so that the mixed gas-liquid mixture is cut by the first cutting teeth after passing through the first through holes; The crushing cutting member is provided with second cutting teeth on a surface close to the rotating cutting member, and the crushing cutting member is also provided with a fluid channel; The mounting base is sealedly connected to an end of the mixing and cutting area away from the water inlet area.

2. The device according to claim 1, characterized in that The inner cavity of the mixing and cutting member includes a mixing section and a cutting section along the axial direction, and the mixing section is located on one side of the spiral section close to the main body; Preferably, the spiral section and the mixing section form a Venturi structure, the reduced diameter portion of the Venturi structure is located on the spiral section, the expanded diameter portion is located on the mixing section, the pharynx is located on the spiral section and / or the mixing section, and the pharynx connects the reduced diameter portion and the expanded diameter portion; Preferably, the spiral portion is a plurality of ribs arranged on the inner wall surface of the spiral segment, and the plurality of ribs are designed to be rotated and tilted; Preferably, the number of the ribs is 3 to 18.

3. The device according to claim 2, characterized in that One end of the gas channel away from the gas inlet forms a plurality of gas inlet channels for tangential gas inlet; Preferably, the width of the air inlet passage decreases gradually in a direction approaching the inner cavity of the mixing and cutting member; Preferably, the number of the air inlet channels is 3 to 18; Preferably, the first surface of the main body is provided with a positioning boss protruding toward the mixing and cutting area, and the mixing and cutting piece is provided with a positioning groove on the surface of one end of the mixing section, and the positioning boss cooperates with the positioning groove for positioning; Preferably, the air inlet passage is located on the bottom surface of the positioning groove.

4. The device according to claim 2, characterized in that The rotating cutting element is accommodated in the cutting section of the mixing cutting element, the side wall surface of the cutting section is provided with the first cutting teeth, and the crushing cutting element is located on the surface of the cutting section away from the mixing section; Preferably, the first cutting teeth extend along the axial direction of the mixing cutting piece and are arranged obliquely, and a plurality of the first cutting teeth are connected in sequence so that the cross section of the cutting section is in the shape of flower teeth; Preferably, the crushing cutting piece abuts between the mixing cutting piece and the mounting base, and the cutting section and the inner cavity of the mounting base are connected through the fluid channel.

5. The device according to claim 2, characterized in that The hole diameter of the end surface of the mixing section close to the cutting section is smaller than or equal to the diameter of the rotating cutting member; Preferably, the hole diameter of the end surface of the mixing section close to the cutting section is smaller than the diameter of the rotating cutting element.

6. The device according to claim 1, characterized in that The crushing and cutting member comprises a central cutting area, an edge cutting area and a plurality of connecting parts, wherein the central cutting area and the edge cutting area are connected through the connecting parts, and the fluid channel is formed between the central cutting area, the edge cutting area and two adjacent connecting parts; Preferably, the diameter of the central cutting area is greater than or equal to the diameter of the rotating cutting member; more preferably, the diameter of the central cutting area is greater than the diameter of the rotating cutting member; Preferably, the central cutting area, the edge cutting area and the connecting portion are all provided with the second cutting teeth.

7. The device according to claim 1, characterized in that The rotating cutting member is provided with a first mounting portion, and the crushing cutting member is provided with a second mounting portion, wherein the first mounting portion and the second mounting portion are respectively protrusions or through holes, and the first mounting portion and the second mounting portion cooperate to enable the rotating cutting member and the crushing cutting member to be selectively rotatably connected; Preferably, the first mounting portion is a protrusion, and the second mounting portion is a through hole.

8. The device according to claim 1, characterized in that It also includes at least one separation cutting member, the separation cutting member is located on a side of the crushing cutting member away from the rotating cutting member, the separation cutting member includes a bottom plate having a plurality of second through holes, and the bottom plate is spaced apart from the crushing cutting member; Preferably, when there are multiple separation cutting pieces, the multiple bottom plates are arranged at intervals; Preferably, the separation cutting piece further comprises a side plate, and the side plate is located between the bottom plate and the crushing cutting piece; when there are multiple separation cutting pieces, the side plate is also located between two adjacent bottom plates.

9. The device according to claim 1, characterized in that A first sealing groove is provided on the side wall surface of the mixing cutting member in contact with the main body, a sealing member is accommodated in the first sealing groove, and the first sealing groove is located on a side of the gas channel away from the gas inlet; Preferably, a second sealing groove is provided at the connection between the main body and the mounting base, and a sealing member is accommodated in the second sealing groove; Preferably, the main body is threadedly connected to the mounting base.

10. A micro-nano bubble system for household water supply pipelines, characterized in that: It comprises a water inlet pipe, a water outlet pipe and the device as claimed in any one of claims 1 to 9, wherein the water inlet pipe is sealedly connected to the main body, and the water outlet pipe is sealedly connected to the mounting base.

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