Microbubble generator and clothing treating device

Abstract

The present invention discloses a microbubble generator and a clothing treatment device. The microbubble generator comprises: an air dissolving tank, an air dissolving cavity is defined in the air dissolving tank, the air dissolving tank has an inlet and an outlet for water flow in and out, the inlet is located above the outlet, and the inlet and the outlet are staggered in the horizontal direction; a cavitation element, the cavitation element is arranged outside the air dissolving tank and connected to the outlet, or the cavitation element is arranged at the outlet. The microbubble generator of the present invention has a simple structure, good air dissolving effect, and low cost.

Description

Technical Field

[0001] The present invention relates to the field of clothing processing devices, and in particular to a micro-bubble generator and a clothing processing device. Background Art

[0002] At present, microbubble technology is mainly used in the field of environmental protection, and there are also cases of application in household areas such as skin care, shower, etc. Most of the current products have complex structures, some require additional water pumps, some require multiple valves to control, and there are also many restrictions on the water entry method, resulting in high costs. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a micro-bubble generator, which has a good bubble generation effect and a relatively simple structure.

[0004] The present invention also aims to provide a clothes treating device having the micro-bubble generator.

[0005] The microbubble generator according to an embodiment of the present invention comprises: an air dissolving tank, wherein an air dissolving cavity is defined inside the air dissolving tank, the air dissolving tank has an inlet and an outlet for water flow in and out, the inlet is located above the outlet, and the inlet and the outlet are staggered in the horizontal direction; and a cavitation element, wherein the cavitation element is arranged outside the air dissolving tank and connected to the outlet, or the cavitation element is arranged at the outlet.

[0006] The microbubble generator of the present invention is cleverly designed in structure, and utilizes the flow velocity difference of water flow in and out of the gas dissolving chamber, and the height difference between the inlet and the outlet, to form a water seal at the outlet, so that the gas dissolving chamber is gradually pressurized to form a high-pressure chamber, thereby increasing the amount of dissolved gas. The microbubble generator has a simple structure, good gas dissolving effect, and low cost.

[0007] The microbubble generator of the embodiment of the present invention further includes: a baffle, the baffle is arranged in the gas dissolving tank, in the horizontal direction, the baffle is at least partially located between the inlet and the outlet, and the baffle is provided with a gap and / or a through hole;

[0008] In some embodiments, when the baffle is provided with the gap, the width of the gap is less than or equal to 50 mm.

[0009] Optionally, when the baffle is provided with the gap, the width of the gap ranges from 1 to 10 mm.

[0010] In some embodiments, a horizontal distance between the baffle and the outlet is greater than a horizontal distance between the baffle and the inlet.

[0011] In some embodiments, the horizontal distance between the baffle and the inlet is less than 50 mm.

[0012] In some embodiments, in the horizontal direction, the inlet and the outlet are located at two ends of the dissolved air tank.

[0013] In some embodiments, the distance between the inlet and at least one side wall of the gas dissolution chamber is less than 50 mm.

[0014] Optionally, the distance between the inlet and at least one side wall of the gas dissolving chamber is between 1-20 mm.

[0015] In some embodiments, the gas dissolving tank is provided by two gas dissolving half shells which are interlocked with each other, the inlet is provided on one of the gas dissolving half shells, and the outlet is provided on the other gas dissolving half shell.

[0016] Specifically, the two gas-dissolving half shells are contact-fitted at the joint through a step surface.

[0017] In some embodiments, the outer surface of the gas dissolving tank is provided with reinforcing ribs arranged in a horizontal and vertical staggered manner.

[0018] In some embodiments, the microbubble generator is configured such that the water outflow rate is smaller than the water inflow rate when dissolving air.

[0019] In some embodiments, a water inlet pipe connected to the top of the gas dissolving cavity is provided at the upper portion of the gas dissolving tank, and a water outlet pipe connected to the bottom of the gas dissolving cavity is provided at the lower portion of the gas dissolving tank, and the water inlet pipe and the water outlet pipe are arranged horizontally.

[0020] According to the laundry processing device of the embodiment of the present invention, a microbubble generator as described in the above embodiment of the present invention is provided at the water inlet of the laundry processing device, and the microbubble generator is connected to the water tub of the laundry processing device.

[0021] According to the laundry processing device of the embodiment of the present invention, by using the above-mentioned microbubble generator, the cost is low and the microbubble production effect is good. The washing water contains a large number of microbubbles, which reduces the amount of washing powder or detergent, saves water and electricity resources, and reduces the washing powder or detergent remaining on the clothes.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 Schematic diagram of the structure of a microbubble generator according to an embodiment of the present invention.

[0025] Figure 2 It is a cross-sectional schematic diagram of a dissolved gas tank according to an embodiment of the present invention.

[0026] Figure 3 It is another cross-sectional schematic diagram of the dissolved gas tank according to one embodiment of the present invention.

[0027] Figure 4 It is a cross-sectional schematic diagram of a dissolved gas tank according to an embodiment of the present invention.

[0028] Figure 5 It is another cross-sectional schematic diagram of the dissolved gas tank according to one embodiment of the present invention.

[0029] Figure 6 It is a schematic structural diagram of a venturi tube according to an embodiment of the present invention.

[0030] Figure 7 Schematic diagram of the structure of an orifice plate according to an embodiment of the present invention.

[0031] Figure 8 It is a schematic structural diagram of a cavitation element according to an embodiment of the present invention.

[0032] Reference numerals:

[0033] Micro bubble generator 100,

[0034] Dissolving gas tank 1, dissolving gas cavity 10, inlet 11, outlet 12, dissolving gas half shell 13, water inlet pipe 14, step surface 16, reinforcing rib 17,

[0035] Cavitation element 2, water chamber 20, cavitation inlet 21, cavitation outlet 22, cavitation shell 23, cavitation ball 24, venturi channel 25, venturi tube 28, orifice plate 29,

[0036] Baffle 3, gap 31. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it is necessary to understand that the terms "center", "length", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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; 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 components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Reference below Figure 1-Figure 8 A microbubble generator 100 according to an embodiment of the present invention is described.

[0041] According to the micro-bubble generator 100 of the embodiment of the present invention, Figure 1 and Figure 2 As shown, it includes: an air dissolving tank 1 and a cavitation element 2. An air dissolving cavity 10 is defined in the air dissolving tank 1, and the air dissolving tank 1 has an inlet 11 and an outlet 12 for water flow in and out. The cavitation element 2 is arranged outside the air dissolving tank 1 and connected to the outlet 12, or the cavitation element 2 is arranged at the outlet 12, and the cavitation element 2 converts the gas dissolved in water into bubbles through the cavitation effect.

[0042] When the micro-bubble generator 100 is used, water is introduced into the air dissolving tank 1 to dissolve air, and then water containing high concentration of air solute enters the cavitation element 2, and micro-bubbles are generated by the cavitation effect of the cavitation element 2. The water flow discharged from the cavitation element 2 contains a large number of micro-bubbles, which can be used for washing and other purposes.

[0043] In the embodiment of the present invention, the inlet 11 of the gas dissolving tank 1 is located above the outlet 12, and the inlet 11 and the outlet 12 are staggered in the horizontal direction. Moreover, the micro-bubble generator 100 is configured such that the water outflow rate is less than the water inflow rate when dissolving gas, that is, less water outflow and more water inflow per unit time. The gas dissolving chamber 10 is sealed by forming a water seal at the outlet 12, thereby completing gas dissolution.

[0044] Specifically, water is injected into the air dissolving tank 1 from the inlet 11. Since the water inflow velocity is greater than the water outflow velocity, the water level in the air dissolving chamber 10 gradually rises after water is injected into the air dissolving tank 1 for a period of time. Since the inlet 11 of the air dissolving tank 1 is located above the outlet 12, the water level in the air dissolving chamber 10 will soon cover the outlet 12 after it rises, so that a water seal is formed at the outlet 12, and the air dissolving chamber 10 gradually increases the pressure to form a high-pressure chamber.

[0045] It should be emphasized here that although the outlet 12 still drains water to the cavitation element 2 after the water seal is formed at the outlet 12, the inlet 11 still continuously inflows water, so the water level in the air dissolving chamber 10 continues to rise, resulting in a gradual decrease in the air space above the water surface. When the air pressure in the air dissolving tank gradually rises to a level close to the water inlet pressure, the water outlet flow rate is equal to the water inlet flow rate.

[0046] Thus, the upper cavity of the air dissolving cavity 10 forms a high-pressure cavity, and the solubility of air under high pressure is greater than that under low pressure, so the solubility of air in water in the air dissolving cavity 10 is greatly increased. A large amount of air is dissolved in the water flowing to the cavitation element 2, so that the cavitation element 2 can produce a large number of microbubbles.

[0047] It should be noted that air is a sparingly soluble gas relative to water. The percentage of air dissolved in water to the amount of air introduced is called the dissolved gas efficiency, which is related to temperature, dissolved gas pressure and the dynamic contact area between the gas and liquid phases. Changing the water temperature or air temperature is difficult to implement. A common method to increase the dissolved gas efficiency is to use a booster pump to increase the pressure in the dissolved gas chamber, but various valves must be configured, so the cost of configuring a booster pump is too high.

[0048] Another solution in the prior art is to set a double inlet in the air dissolving device, one inlet is used for water intake, and the other inlet is used for air intake. Obviously, in order to inject air into the water, a booster pump must be used to pressurize the air into the water. In this solution, because the air inlet is located below the cavitation component, the incoming bubbles will quickly flow toward the cavitation component and be squeezed out. There is no space in the air dissolving tank for the bubbles to slowly dissolve, and the air dissolving effect is not ideal. The method of injecting air into the water by boosting is equivalent to directly pressing large bubbles into the water. Such large bubbles stay in the water for a short time and have insufficient dissolution time. Even when passing through the cavitation component, the cavitation component squeezes the large bubbles into more small bubbles, but the small bubbles will quickly break and release during use.

[0049] It should be emphasized here that the air dissolving tank 1 proposed in the embodiment of the present invention is to dissolve air in water, that is, to dissolve air in water as a solute, that is, air is dispersed in water molecules in the form of ions. The dissolved state disperses air ions, and the air ions in the water molecules are more uniform. After that, the bubbles separated out by the cavitation effect are mostly only nanometer-level and micrometer-level in the initial stage of formation, which is the microbubble that our microbubble generator 100 hopes to obtain. Even after the water with microbubbles flows to the final use place, the microbubbles are dissolved with each other, and most of the microbubbles obtained can still remain at the millimeter level or even smaller, and its effect is the best. Moreover, the air dissolved in the water is usually not sufficiently separated out in the cavitation part 2, and the air dissolved in the water during use will slowly replenish the microbubbles.

[0050] In the embodiment of the present invention, since the inlet 11 is located above the outlet 12, when water enters the inlet 11, the water rushes toward the water surface from above, causing the water surface to be agitated, and at the same time, some high-pressure air is brought in, which can increase the dynamic contact area between air and water. In addition, since the inlet 11 and the outlet 12 are staggered in the horizontal direction, the flow path of the water flow in the air dissolving chamber 10 is longer, which reduces the bubbles generated by the impact of the incoming water flow and is carried away by the water flow and flows out from the outlet 12 on the one hand, and increases the dissolution time and contact area of ​​the excited bubbles in the water body on the other hand.

[0051] The microbubble generator 100 according to the embodiment of the present invention does not require electricity and does not require the installation of multiple valves, and achieves the generation of microbubbles with a relatively simple structure.

[0052] The microbubble generator 100 according to the embodiment of the present invention is cleverly designed to form a water seal at the outlet 12 by utilizing the flow velocity difference of the water flow in and out of the gas dissolving chamber 10 and the height difference between the inlet 11 and the outlet 12, so that the gas dissolving chamber 10 is gradually pressurized to form a high-pressure chamber, thereby increasing the amount of dissolved gas. The microbubble generator 100 has a simple structure, good gas dissolving effect, and low cost.

[0053] In the embodiment of the present invention, in the horizontal direction, the baffle 3 is at least partially located between the inlet 11 and the outlet 12. A slit 31 is provided on the baffle 3, or a through hole is provided on the baffle 3, or a slit 31 and a through hole are provided on the baffle 31. The baffle 3 is arranged between the inlet 11 and the outlet 12 to intercept the water flowing in from the inlet 11 in the process of flowing toward the outlet 12. The slit 31 or the through hole on the baffle 3 allows the water dissolved with air to flow through, but the bubbles stirred up by the water splashes in the air dissolving chamber 10 are blocked. The large bubbles flow to the cavitation element 2 because the amount of air in the air dissolving tank 1 will be wasted, the air pressure in the air dissolving chamber 10 will drop rapidly and affect the air dissolution, and the large bubbles will affect the cavitation effect after flowing into the cavitation element 2.

[0054] In addition, the provision of the baffle 3 can enable the incident water flow to hit the baffle 3 to form more water splashes, and the baffle 3 can also serve as a reinforcement structure to enhance the pressure bearing capacity of the dissolved air tank 1.

[0055] The baffle 3 mentioned here is at least partially located between the inlet 11 and the outlet 12 in the horizontal direction, which means that the baffle 3 can be as follows Figure 4 The baffle 3 is shown as being completely located between the inlet 11 and the outlet 12, and the baffle 3 may also be only partially located between the inlet 11 and the outlet 12. For example, the baffle 3 may be formed as an arc plate or a spherical plate, and the baffle 3 covers the outlet 12, in which case the baffle 3 is only partially located between the inlet 11 and the outlet 12.

[0056] In some embodiments, Figure 4 and Figure 5 As shown, the baffle plate 3 is formed as a flat plate and is vertically connected to the bottom wall of the gas dissolving tank 1. As a result, it can not only effectively prevent the bubbles generated by the water flow from flowing out of the gas dissolving tank 1, but also facilitate production and manufacturing. Whether the straight baffle plate 3 is formed integrally on the gas dissolving tank 1 or fixed to the gas dissolving tank 1 by plugging or welding, it is much easier than a curved plate. In other embodiments of the present invention, the baffle plate 3 can also be formed as an inclined plate, a double-layer hollow plate, or can be formed as the above-mentioned curved plate, spherical plate, etc.

[0057] Specifically, Figure 5 As shown, the gap 31 on the baffle 3 is formed into a vertical strip shape in the up and down direction, which is also a structure that greatly improves the manufacturability of the microbubble generator 100. Figure 5 There is only one middle slit 31 . In other embodiments, the baffle plate 3 can be formed as a grille plate with multiple slits 31 .

[0058] In other embodiments, the baffle plate 3 is a porous plate having a plurality of through holes, or the baffle plate 3 is provided with both slits 31 and through holes.

[0059] In some specific embodiments, when the baffle plate 3 is provided with a slit 31, the width of the slit 31 is less than or equal to 50 mm. It is understandable that the width of the slit 31 on the baffle plate 3 needs to be smaller to prevent bubbles formed by water flow from passing through the slit 31. Preferably, the width of the slit 31 ranges from 1 to 10 mm. Of course, the size of the slit 31 can also be selected according to actual conditions and is not limited to the above range.

[0060] Optionally, the horizontal distance between the baffle 3 and the outlet 12 is greater than the horizontal distance between the baffle 3 and the inlet 11, that is, the baffle 3 is closer to the inlet 11 in the horizontal direction, thereby ensuring the blocking effect of the baffle 3 on the water flow to excite the water bubbles, thereby ensuring the gas dissolving effect of the gas dissolving tank 1. Preferably, the horizontal distance between the baffle 3 and the inlet 11 is less than 50 mm.

[0061] It should be noted that the gas dissolving tank 1 can be formed into any shape, and the shape of the gas dissolving tank 1 is not specifically limited. However, the gas dissolving tank 1 needs to ensure that other positions of the gas dissolving tank 1 except the outlet 12 have good sealing properties during gas dissolving operation.

[0062] In some embodiments, such as Figure 3 and Figure 5 As shown, the cross-sectional area of ​​the air dissolving chamber 10 perpendicular to the inlet 11 is relatively small. It can be understood that when the water flows into the air dissolving chamber 10, the incident water flow will hit the inner wall of the air dissolving chamber 10 and the liquid surface in the air dissolving chamber 10. This phenomenon will produce more water splashes, and the generation of water splashes is conducive to bringing the water body into the high-pressure air above, increasing the speed of air dissolving in the water body. The cross-sectional area of ​​the air dissolving chamber 10 perpendicular to the inlet 11 is relatively small, which is conducive to the water splashes generated during the incident water flow of the inlet 11 hitting the water surface, and the inner wall of the air dissolving chamber 10 produces a relatively strong physical effect, so that the water body can dissolve the air faster.

[0063] In some optional embodiments, such as Figure 3 and Figure 5 As shown, the incident direction of the inlet 11 is vertically downward, and the incoming water flow is injected into the air dissolving chamber 10 along the vertical direction, which not only increases the generation of water splashes, thereby accelerating the air dissolution rate, but also facilitates the manufacturability of mass production of the air dissolving tank 1. Of course, in other embodiments of the present invention, the incident direction of the inlet 11 can also be inclined, that is, the incident direction of the water flow can be at a certain angle to the vertical direction, so that the impact area of ​​the incident water flow is very large.

[0064] In some embodiments, in the horizontal direction, such as Figure 2 and Figure 4 As shown, the inlet 11 and the outlet 12 are located at the two ends of the air dissolving tank 1 , thereby further lengthening the flow path of the water flow inside the air dissolving tank 1 and further reducing the bubbles produced by the water flow flowing out through the outlet 12 .

[0065] The cross section of the gas dissolving chamber 10 in the horizontal direction is a square, and the inlet 11 and the outlet 12 are arranged at the farthest distance of the straight line distance between the two ends of the square. For example, the cross section of the gas dissolving chamber 10 in the horizontal direction is a rectangle, and the inlet 11 and the outlet 12 are located at the two ends of the long side of the rectangle. This gas dissolving tank 1 is easy to process and easy to lay out during assembly. Of course, in other embodiments of the present invention, the cross-sectional shape of the gas dissolving chamber 10 can be formed into any shape and is not limited to a rectangle, a rhombus or other irregular squares.

[0066] Advantageously, if Figure 2 and Figure 4As shown, the inlet 11 is located at the top of the air dissolving chamber 10, which can ensure that the incident water flow can stir up more water splashes and improve the air dissolving effect. Optionally, the outlet 12 is located at the bottom of the air dissolving chamber 10, so that the outlet 12 can form a water seal as soon as possible.

[0067] In some embodiments, the distance between the inlet 11 and at least one side wall of the air dissolving chamber 10 is less than 50 mm. That is, when the inlet 11 is in working state, the projection of the inlet 11 to the water surface in the vertical direction is less than 50 mm from the inner wall surface of at least one air dissolving chamber 10. The water flow at the inlet 11 is more likely to hit the side wall of the air dissolving tank 1 to produce water splashes, thereby improving the air dissolving effect of the air dissolving tank 1. Optionally, the distance between the inlet 11 and at least one side wall of the air dissolving chamber 10 is between 1-20 mm. Of course, in other embodiments of the present invention, the inner wall of the air dissolving chamber 10 can be provided with structures such as inner convex ribs to make it easier to stir up water splashes.

[0068] In some specific embodiments, Figure 2-Figure 5 As shown, the gas dissolving tank 1 is provided with two gas dissolving half shells 13 which are interlocked, the inlet 11 is provided on one of the gas dissolving half shells 13, and the outlet 12 is provided on the other gas dissolving half shell 13. The inlet 11 and the outlet 12 are provided on the two gas dissolving half shells 13 respectively, which is easy to form, and the strength of each gas dissolving half shell 13 is not too low. The gas dissolving tank 1 has strong manufacturability, is convenient for mass production, and has low processing cost.

[0069] Optionally, the two gas dissolving half shells 13 are connected by welding or gluing to ensure the sealing.

[0070] Specifically, the dissolved gas tank 1 is a plastic part. Optionally, each dissolved gas half shell 13 is an integral injection-molded part.

[0071] Furthermore, if Figure 1-Figure 5 As shown, the upper part of the gas dissolving tank 1 is provided with a water inlet pipe 14 connected to the top of the gas dissolving chamber 10, and the lower part of the gas dissolving tank 1 is provided with a water outlet pipe (not shown) connected to the bottom of the gas dissolving chamber 10, and the water inlet pipe 14 and the water outlet pipe are arranged horizontally, which is convenient for assembly. For example, when the micro bubble generator 100 is used in an integrated manner with a detergent box, the gas dissolving tank 1 is installed behind the detergent box, and the water inlet pipe 14 and the water outlet pipe are arranged horizontally to make assembly easier.

[0072] Advantageously, if Figure 2-Figure 5 As shown, two air-dissolving half shells 13 are arranged up and down, the water inlet pipe 14 is formed integrally on the upper air-dissolving half shell 13, and the water outlet pipe is formed integrally on the lower air-dissolving half shell 13, so that the processing convenience and sealing performance can be guaranteed.

[0073] Specifically, the two gas-dissolving half shells 13 are in contact with each other at the joint through the step surface 16, so that the contact area of ​​the two gas-dissolving half shells 13 is increased and the contact strength is also improved. In addition, the step surface 16 is in contact with each other, so that at least part of the contact surface of the two gas-dissolving half shells 13 is perpendicular or nearly perpendicular to the pressure of the inner wall of the gas-dissolving chamber 10. This makes the two gas-dissolving half shells 13 more and more tightly pressed at the joint due to the internal high pressure, avoiding the joint from cracking and leaking due to the internal high pressure.

[0074] Furthermore, the outer surface of the gas dissolving tank 1 is provided with reinforcing ribs 17 arranged in a staggered manner in both horizontal and vertical directions, so as to increase the strength of the gas dissolving tank 1 and avoid deformation and gas leakage due to the internal high pressure.

[0075] In the embodiment of the present invention, the cavitation element 2 may adopt the structure of a cavitation device that is already known in the prior art, such as an ultrasonic generator.

[0076] In some optional embodiments, such as Figure 6 As shown, the cavitation element 2 includes a venturi tube 28. Thus, the air dissolved in the water flow passing through the cavitation element 2 can be precipitated relatively easily and made into bubbles. By using the venturi tube 28 as the cavitation element 2, there is no need to design extra water pumps, heating devices or control valves, etc., which greatly simplifies the structure of the cavitation element 2 and reduces the production cost. In addition, the venturi tube 28 has no additional requirements for the water inlet method, so that the cavitation element 2 can easily generate a large number of bubbles.

[0077] In some other optional embodiments, Figure 7 As shown, the cavitation element 2 is a perforated plate 29 provided with a plurality of micropores. Thus, the air dissolved in the water flow passing through the cavitation element 2 can be precipitated relatively simply and made into bubbles. Specifically, the radius of the micropores on the perforated plate 29 is 0.01 mm-10 mm. Experiments have shown that the perforated plate 29 with the above parameters has a better cavitation effect and can generate more bubbles. Of course, the specific parameters of the perforated plate 29 can be adjusted by the staff according to the actual working conditions and are not limited to the above ranges.

[0078] In some other embodiments, Figure 8 As shown, the cavitation element 2 includes: a cavitation shell 23 and a cavitation ball 24. A water passage chamber 20 is provided in the cavitation shell 23, and the water passage chamber 20 has a cavitation inlet 21 and a cavitation outlet 22 for water flow in and out, and the cavitation inlet 21 is connected to the outlet 12 of the gas dissolving tank 1. The cavitation ball 24 is movably arranged in the water passage chamber 20, and the water flowing in from the cavitation inlet 21 can push the cavitation ball 24 to block at the cavitation outlet 22, and when the cavitation ball 24 is blocked at the cavitation outlet 22, a venturi channel 25 is formed between the cavitation ball 24 and the inner wall of the water passage chamber 20.

[0079] When the cavitation ball 24 blocks the cavitation outlet 22, a venturi channel 25 communicating with the cavitation outlet 22 is provided between the cavitation ball 24 and the inner wall of the water passage chamber 20. It is shown here that the cavitation ball 24 does not completely block the cavitation outlet 22, but leaves the venturi channel 25 so that the water flow containing dissolved air gradually flows out from the cavitation outlet 22.

[0080] By arranging a movable cavitation ball 24 in the water passage chamber 20 in front of the cavitation outlet 22, when the water flow containing dissolved air is continuously introduced into the cavitation inlet 21, the continuously introduced water flow flows along the inner wall of the water passage chamber 20, and after encountering the cavitation ball 24, the cavitation ball 24 is pushed to move toward the cavitation outlet 22, so that the cavitation ball 24 moves to the front of the cavitation outlet 22 and gradually stops on the cavitation outlet 22, forming a Venturi channel 25.

[0081] When the water flow containing dissolved air solutes passes through the Venturi channel 25, the flow area will first shrink and then expand. When the flow area shrinks and the flow velocity of the water flow with gas solutes increases, the water pressure decreases. When the flow area increases and the flow velocity of the water flow with gas solutes decreases, the water pressure increases. The Venturi channel 25 is equivalent to a Venturi tube, which will produce a Venturi effect, causing air to precipitate from the solute state to form microbubbles. In addition, the water flow keeps the cavitation ball 24 against the cavitation outlet 22, and also makes the water flow containing dissolved air solutes flow out of the Venturi channel 25 faster.

[0082] In this process, the water flow rate continuously introduced is greater than the water flow rate discharged, and the water chamber 20 is a closed chamber. When the cavitation ball 24 stops in front of the cavitation outlet 22, the internal pressure will increase, thereby strengthening the cavitation effect.

[0083] The use of this cavitation element 2 is not only low in cost and processing difficulty, but also has advantages that other cavitation structures do not have. The cavitation ball 24 is a movable sphere. When the microbubble generator 100 stops working, the water flow rate decreases, and the cavitation ball 24 without water flow will leave the cavitation outlet 22, so that the remaining water in the microbubble generator 100 can be removed as soon as possible. This is convenient for pre-storing air in the air dissolving tank 1, and on the other hand, it is prevented from accumulating water and breeding too many bacteria. In addition, this cavitation element 2 is also easy to clean.

[0084] In some embodiments, the microbubble generator 100 further includes an air valve disposed on the air dissolving tank 1. It should be noted that when the air in the air dissolving tank 1 gradually dissolves, the air inside the air dissolving tank 1 will gradually decrease. The air valve is disposed on the air dissolving tank 1. When the air in the air dissolving tank 1 is less, the air valve is opened, and the outside air enters the air dissolving tank 1, so that the air dissolving tank 1 is filled with sufficient air, thereby ensuring that the microbubble generator 100 can continuously increase the air dissolved in the water flow.

[0085] The water treated by the microbubble generator 100 of the embodiment of the present invention contains a large amount of microbubbles. Using such microbubble water as washing water can reduce the amount of washing powder or detergent, save water and electricity resources, and reduce the amount of washing powder or detergent remaining on clothes.

[0086] According to the laundry processing apparatus of the embodiment of the present invention, a microbubble generator 100 as in the above embodiment of the present invention is provided at the water inlet of the laundry processing apparatus, and the microbubble generator 100 guides water generating microbubbles to the water tub of the laundry processing apparatus.

[0087] According to the laundry processing device of the embodiment of the present invention, the microbubble generator 100 is used, which has low cost and good microbubble production effect. The washing water contains a large amount of microbubbles, which reduces the amount of washing powder or detergent, saves water and electricity resources, and reduces the washing powder or detergent remaining on the clothes.

[0088] Other components of the laundry processing apparatus according to the embodiment of the present invention, such as the motor and the pulsator or the drum, and the operation thereof are well known to those skilled in the art and will not be described in detail here.

[0089] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0090] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A microbubble generator, characterized in that: include: An air dissolving tank, wherein an air dissolving cavity is defined in the air dissolving tank, and the air dissolving tank has an inlet and an outlet for water flow in and out, wherein the inlet is located above the outlet, and the inlet and the outlet are staggered in the horizontal direction. Since the inlet of the container tank is located above the outlet, the water level of the air dissolving cavity will quickly cover the outlet after rising, so that a water seal is formed at the outlet, so that the air dissolving cavity is gradually pressurized to form a high-pressure cavity; The upper part of the gas dissolving tank is provided with a water inlet pipe connected to the top of the gas dissolving cavity, and the lower part of the gas dissolving tank is provided with a water outlet pipe connected to the bottom of the gas dissolving cavity; A cavitation element, wherein the cavitation element is arranged outside the gas dissolving tank and connected to the outlet, or the cavitation element is arranged at the outlet; The baffle is arranged in the gas dissolving tank. In the horizontal direction, the baffle is at least partially located between the inlet and the outlet, and the baffle is provided with a gap and / or a through hole; wherein, when the micro-bubble generator dissolves gas, it is configured so that the water outlet flow rate is smaller than the water inlet flow rate, that is, less water is discharged and more water is in per unit time.

2. The microbubble generator according to claim 1, characterized in that: When the baffle is provided with the gap, the width of the gap is less than or equal to 50 mm.

3. The microbubble generator according to claim 2, characterized in that: When the baffle is provided with the slit, the width of the slit ranges from 1 to 10 mm.

4. The microbubble generator according to claim 1, characterized in that: A horizontal distance between the baffle and the outlet is greater than a horizontal distance between the baffle and the inlet.

5. The microbubble generator according to claim 4, characterized in that: The horizontal distance between the baffle and the inlet is less than 50 mm.

6. The microbubble generator according to claim 1, characterized in that: In the horizontal direction, the inlet and the outlet are located at two ends of the dissolved air tank.

7. The microbubble generator according to claim 1, characterized in that: The distance between the inlet and at least one side wall of the gas dissolving chamber is less than 50 mm.

8. The microbubble generator according to claim 7, characterized in that: The distance between the inlet and at least one side wall of the gas dissolving chamber is between 1 and 20 mm.

9. The microbubble generator according to claim 1, characterized in that: The gas dissolving tank is provided by two gas dissolving half shells which are buckled with each other, the inlet is provided on one of the gas dissolving half shells, and the outlet is provided on the other gas dissolving half shell.

10. The microbubble generator according to claim 9, characterized in that: The two gas dissolving half shells are contacted and matched at the joint through the step surface.

11. The microbubble generator according to claim 1, characterized in that: The outer surface of the gas dissolving tank is provided with reinforcing ribs arranged in a staggered manner horizontally and vertically.

12. The microbubble generator according to claim 1, characterized in that: The water inlet pipe and the water outlet pipe are arranged horizontally.

13. A clothes processing device, characterized in that: A microbubble generator as claimed in any one of claims 1 to 12 is provided at the water inlet of the clothing treatment device, and the microbubble generator is connected to a water tub of the clothing treatment device.

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