Bubble generating device and washing equipment

Abstract

The present invention discloses a bubble generating device and a washing device, wherein the bubble generating device comprises: a gas dissolving chamber, a bypass member and a bubbler. The gas dissolving chamber has a vent, a liquid inlet and a liquid outlet; the bypass member has a tapered section, a throat and a gradually expanding section which are sequentially connected from the inlet to the outlet, the throat is connected to the vent and the outlet of the bypass member is connected to the gas dissolving chamber to form a circulation loop; the bubbler is connected to the liquid outlet. The bubble generating device according to the embodiment of the present invention can improve the bubble generation rate.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and in particular to a bubble generating device and a washing equipment having the bubble generating device. Background Art

[0002] A dishwasher is a machine that uses chemical, mechanical, thermal and electrical methods to wash, rinse and dry tableware such as bowls, plates, glassware, cutlery and cooking utensils.

[0003] At present, household dishwashers all use water spraying for cleaning. However, such water spraying dishwashers are difficult to clean ordinary Chinese tableware due to the water spraying angle problem. On the other hand, the cleaning effect is always unsatisfactory due to the short contact time between the cleaning liquid and the tableware after spraying. In view of this, water spraying dishwashers have not been popularized in Chinese households. Summary of the invention

[0004] An object of the present invention is to provide a bubble generating device which can improve the bubble generation rate.

[0005] Another object of the present invention is to provide a washing device having the bubble generating device.

[0006] The bubble generating device according to an embodiment of the present invention comprises: a gas dissolving chamber, a bypass member and a bubbler. The gas dissolving chamber has a vent, a liquid inlet and a liquid outlet; the bypass member has a tapered section, a throat and a gradually expanding section which are sequentially connected from the inlet to the outlet, the throat is connected to the vent and the outlet of the bypass member is connected to the gas dissolving chamber to form a circulation loop; the bubbler is connected to the liquid outlet.

[0007] According to the bubble generating device of the embodiment of the present invention, the bubble generating rate can be improved.

[0008] In addition, the bubble generating device according to the above embodiment of the present invention may also have the following additional technical features:

[0009] In some embodiments, at least a portion of the gas dissolving chamber is formed as a rotating shell, and the liquid inlet and the liquid outlet are both connected to the rotating shell.

[0010] In some embodiments, the liquid inlet and the liquid outlet both extend in a clockwise direction or a counterclockwise direction of the rotating shell toward a direction away from the gas dissolving chamber.

[0011] In some embodiments, an angle between a liquid inlet direction of the liquid inlet and a liquid outlet direction of the liquid outlet is no greater than 90°.

[0012] In some embodiments, one of the liquid inlet and the liquid outlet extends in a clockwise direction of the gas dissolving cavity toward a direction away from the gas dissolving cavity, and the other extends in a counterclockwise direction of the gas dissolving cavity toward a direction away from the gas dissolving cavity.

[0013] In some embodiments, an angle between a liquid inlet direction of the liquid inlet and a liquid outlet direction of the liquid outlet is greater than 90°.

[0014] In some embodiments, the angle between the liquid inlet direction and the liquid outlet direction of the liquid outlet is in the range of 120° to 180°.

[0015] In some embodiments, the liquid inlet and the liquid outlet both extend along a tangential direction of the rotating shell.

[0016] In some embodiments, the vent is disposed at the top of the gas dissolving chamber, and the liquid inlet and the liquid outlet are disposed at the bottom of the gas dissolving chamber.

[0017] In some embodiments, the lower portion of the gas dissolving chamber is in a barrel shape.

[0018] In some embodiments, the upper portion of the gas dissolving chamber is in a shape that gradually shrinks from bottom to top.

[0019] In some embodiments, the liquid inlet and the liquid outlet are arranged on opposite sides of a plane passing through the center line of the gas dissolving chamber.

[0020] In some embodiments, the liquid inlet and the liquid outlet are respectively disposed on different walls of the gas dissolving chamber.

[0021] In some embodiments, the liquid inlet is higher than the liquid outlet.

[0022] In some embodiments, the bubble generating device further includes a vent valve, one end of which is connected to the vent port.

[0023] In some embodiments, the bubble generating device further includes an air pump, and two ends of the vent valve are respectively connected to the vent of the air dissolving chamber and the air pump.

[0024] In some embodiments, the bubble generating device further comprises a liquid inlet valve connected to an inlet of the bypass member.

[0025] A washing device according to an embodiment of the present invention includes the bubble generating device described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of a bubble generating device according to an embodiment of the present invention.

[0027] Figure 2It is a schematic diagram of a bypass member (Venturi tube) in a bubble generating device according to an embodiment of the present invention.

[0028] Figure 3 It is a schematic diagram of a bypass member (a local structure of a jet pump) in a bubble generating device according to an embodiment of the present invention.

[0029] Figure 4 Schematic diagram of the gas dissolving chamber of the bubble generating device according to one embodiment of the present invention.

[0030] Figure 5 yes Figure 4 sectional view of .

[0031] Figure 6 Schematic diagram of the gas dissolving chamber of the bubble generating device according to one embodiment of the present invention.

[0032] Figure 7 yes Figure 6 sectional view of .

[0033] Figure 8 Schematic diagram of the gas dissolving chamber of the bubble generating device according to one embodiment of the present invention.

[0034] Fig. 9 yes Figure 8 sectional view of .

[0035] Figure numerals: bubble generating device 100, gas dissolving chamber 1, vent 101, liquid inlet 102, liquid outlet 103, liquid inlet direction A of liquid inlet 102, liquid outlet direction B of liquid outlet 103, bypass piece 2, tapered section 21, throat 22, gradually expanding section 23, bubbler 3, liquid inlet valve 4, air pump 5, vent valve 6. DETAILED DESCRIPTION

[0036] Microbubbles have the characteristics of charged adsorption, detergent solubility, and mechanical vibration generated by bubble rupture. This technology may help in the dissolution of detergents, grease removal, removal of agricultural residues from fruits and vegetables, and filtering of pollutants, and improve the cleaning rate. Microbubble generation technology can be divided into: electrolysis, ultrasonic cavitation, throttling cavitation, low-pressure suction and other methods. Among them, increasing the pressure can increase the solubility rate of gas in liquid and increase the concentration of bubbles generated in the throttling cavitation process.

[0037] The present invention provides a device for producing microbubbles by using the energy of a washing pump, and the microbubbles can be used to participate in the washing process of a washing device. The washing device in the present invention can be a cleaning device including a dishwasher.

[0038] 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 intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0039] like Figures 1 to 9 The bubble generating device 100 according to an embodiment of the present invention comprises: a gas dissolving chamber 1, a bypass member 2 and a bubbler 3.

[0040] The gas dissolving chamber 1 has a vent 101, a liquid inlet 102 and a liquid outlet 103. The liquid inlet 102 is used for liquid to enter the gas dissolving chamber 1; the liquid outlet 103 is used for liquid in the gas dissolving chamber 1 to be discharged, specifically, the liquid outlet 103 can be used to send out liquid containing bubbles; the vent 101 is used for ventilation, gas can enter the gas dissolving chamber 1 through the vent 101, and the gas in the gas dissolving chamber 1 can also be sent out through the vent 101. The bypass member 2 has a tapered section 21, a throat 22 and a gradually expanding section 23 connected in sequence from the inlet to the outlet, that is, between the inlet of the bypass member 2 and the outlet of the bypass member, the tapered section 21, the throat 22 and the gradually expanding section 23 are arranged in sequence, the throat 22 is connected to the vent 101, and the outlet of the bypass member 2 is connected to the liquid inlet of the gas dissolving chamber 1. In this way, the liquid can flow into the gas dissolving chamber 1 through the bypass piece, a part of the gas in the liquid flowing into the gas dissolving chamber 1 from the bypass piece will be released into the gas dissolving chamber, and the gas in the gas dissolving chamber 1 (including the gas originally existing in the gas dissolving chamber and a part of the gas released from the liquid flowing into the bypass piece) can also flow into the throat 22 through the vent 101, thereby forming a circulation structure. The bubbler 3 is connected to the liquid outlet 103.

[0041] The bypass member 2 has an inlet and an outlet, the tapered tube 21 contracts from the inlet of the bypass member 2 toward the throat 22, the gradually expanding section 23 is connected to the throat 22 and expands to the outlet in a direction away from the throat 22, and the outlet of the bypass member 2 can be connected to the gas dissolving chamber 1. The bubbler 3 is connected to the liquid outlet 103 of the gas dissolving chamber 1 to disperse the liquid dissolved with gas sent out of the gas dissolving chamber 1 to form a liquid with bubbles.

[0042] When the liquid passes through the bypass piece 2, due to the shape of the bypass piece 2, the liquid can flow at high speed and low pressure in the bypass piece 2, and the gas in the gas dissolving chamber 1 is sucked into the bypass piece 2 through the vent 101 to form a gas-liquid mixed fluid, and then enters the gas dissolving chamber of the gas dissolving chamber 1, and the liquid is further mixed with gas and liquid in the gas dissolving chamber. In the gas dissolving chamber, part of the gas in the liquid follows the liquid into the bubbler to generate bubbles, while another part of the gas in the liquid may precipitate into the upper part of the gas dissolving chamber and may flow to the bypass piece 2 again. And after passing through the bubbler 3, a liquid with a large number of bubbles is generated.

[0043] Of course, the gas entering the bypass member from the vent can also be completely dissolved in the liquid and all follow the liquid into the bubbler to generate bubbles.

[0044] The bubble generating device 100 according to the embodiment of the present invention effectively increases the gas dissolution rate in the liquid, thereby improving the efficiency and effect of bubble generation.

[0045] Therefore, the bubble generating device 100 of the present invention can generate a liquid carrying a large number of bubbles. When the liquid is involved in washing, the washing effect will be improved under the action of the bubbles.

[0046] Optionally, at least a part of the gas dissolving chamber 1 is a rotating shell. The rotating shell refers to a shell rotating around a fixed axis. In the present invention, the liquid inlet 102 and the liquid outlet 103 are both connected to the rotating shell.

[0047] Among them, after the liquid enters the dissolved air cavity through the liquid inlet, since the liquid has a certain kinetic energy, a vortex fluid may be formed in the rotating shell, which will increase the dissolved air cavity rate in the liquid and precipitate large bubbles in the fluid to avoid affecting the quality of bubbles produced by the bubble generator, thereby increasing the number of bubbles and reducing the size of the produced bubbles.

[0048] Optionally, the liquid inlet 102 and the liquid outlet 103 both extend in the clockwise direction of the rotating shell toward a direction away from the gas dissolving chamber 1, then the liquid inlet direction A of the liquid inlet 102 will extend in the counterclockwise direction of the rotating shell, and the liquid outlet direction B of the liquid outlet 103 will extend in the clockwise direction of the gas dissolving chamber 1. Therefore, after the liquid enters the gas dissolving chamber 1 from the liquid inlet 102, it needs to flow in a roughly S-shaped direction and then be sent out from the liquid outlet 103. Therefore, the liquid entering the gas dissolving chamber 1 can produce a better turbulence effect, effectively improving the efficiency and effect of gas dissolution.

[0049] In addition, the liquid inlet 102 and the liquid outlet 103 may also be arranged to extend in the counterclockwise direction of the rotating shell away from the gas dissolving chamber 1. Since this arrangement is similar to the aforementioned arrangement and their working principles are relatively similar, they will not be described in detail here.

[0050] From the attached Figure 4 and Figure 5It can be seen that the size of the angle between the liquid inlet direction and the liquid outlet direction determines the distance between the liquid inlet 102 and the liquid outlet 103. When the angle between the liquid inlet direction and the liquid outlet direction is large (for example, greater than 90°), the distance between the liquid inlet 102 and the liquid outlet 103 will be reduced. For example, when the angle between the liquid inlet 102 and the liquid outlet 103 reaches 180°, the liquid inlet 102 and the liquid outlet 103 will overlap. Therefore, the angle between the liquid inlet direction and the liquid outlet direction can be set to be small enough, so that there is a relatively suitable distance between the liquid inlet 102 and the liquid outlet 103, thereby increasing the gas absorbed by the liquid in the gas dissolving chamber 1. For example, when the angle between the liquid inlet direction and the liquid outlet direction is set to 0°, the distance between the liquid inlet 102 and the liquid outlet 103 is large, and the liquid entering the gas dissolving chamber 1 needs to pass through a roughly S-shaped flow path before being sent out from the liquid outlet 103.

[0051] Optionally, the angle α between the liquid inlet direction A of the liquid inlet 102 and the liquid outlet direction B of the liquid outlet 103 is not greater than 90°. The flow from the liquid inlet 102 to the liquid outlet 103 changes through a relatively large angle, effectively improving the gas dissolving effect of the liquid in the gas dissolving chamber 1.

[0052] Of course, the angle α between the liquid inlet direction A of the liquid inlet 102 and the liquid outlet direction B of the liquid outlet 103 in the present invention may also be greater than 90°, and a relatively good gas dissolving effect may also be achieved.

[0053] Alternatively, if Figures 6 to 9 One of the liquid inlet 102 and the liquid outlet 103 extends in the clockwise direction of the gas dissolving chamber 1 in the direction away from the gas dissolving chamber 1, and the other extends in the counterclockwise direction of the gas dissolving chamber 1 in the direction away from the gas dissolving chamber 1. The liquid entering the gas dissolving chamber 1 from the liquid inlet 102 will flow along the circumference of the gas dissolving chamber 1 and flow toward the liquid outlet 103. The liquid will also flow through a larger area in the gas dissolving chamber 1, and will produce a turbulent effect on the liquid in the gas dissolving chamber 1, thereby improving the gas dissolving effect.

[0054] In addition, refer to Figure 6-Figure 9 As the angle between the liquid outlet direction and the liquid inlet direction increases, the path from the liquid inlet 102 to the liquid outlet 103 increases, which effectively improves the turbulent flow effect of the liquid in the gas dissolving chamber 1. Improve the gas dissolving effect.

[0055] Optionally, the angle α between the liquid inlet direction A of the liquid inlet 102 and the liquid outlet direction B of the liquid outlet 103 is greater than 90°. For example, the angle between the liquid inlet direction A of the liquid inlet 102 and the liquid outlet direction B of the liquid outlet 103 is set to 150°. Optionally, the angle between the liquid inlet direction of the liquid inlet and the liquid outlet direction of the liquid outlet is in the range of 120° to 180°.

[0056] Of course, the angle between the liquid inlet direction and the liquid outlet direction may also be set to be less than 90°.

[0057] For example, the angle between the liquid inlet direction and the liquid outlet direction is set to 30°, 60°, 135°, 180°, etc.

[0058] It should be noted that in Figure 7 and Fig. 9 In the figure, the marked angle β and angle α are complementary angles.

[0059] Optionally, the liquid inlet and liquid outlet of the gas dissolving chamber can be extended along the tangent direction of the rotating shell. The liquid enters the rotating shell inside the shell from the liquid inlet 102 along the tangent, and the liquid will flow along the inner surface of the shell and change direction, thereby absorbing a large amount of gas into the liquid, thereby increasing the dissolution rate of the gas in the liquid.

[0060] Optionally, the vent 101 is arranged at the top of the gas dissolving chamber 1, and the liquid inlet 102 and the liquid outlet 103 are arranged at the bottom of the gas dissolving chamber 1. The liquid entering the gas dissolving chamber 1 from the bottom can cause the gas in the gas dissolving chamber 1 to gather toward the top, and as the liquid level in the gas dissolving chamber 1 rises, the gas in the gas dissolving chamber 1 will be continuously caused to enter the bypass member 2 and dissolve in the liquid, thereby improving the gas dissolving effect, and the liquid inlet 102 and the liquid outlet 103 located at the bottom can also facilitate the discharge of the liquid in the gas dissolving chamber 1.

[0061] Optionally, the lower part of the gas dissolving chamber 1 is in a barrel shape. In other words, the lower part of the gas dissolving chamber 1 is in a circular shape in horizontal cross section, so that the liquid in the gas dissolving chamber 1 can be easily circulated.

[0062] Optionally, the upper portion of the gas dissolving chamber 1 is shaped to gradually contract from bottom to top, so that the airflow can enter the gas dissolving chamber 1 from the vent 101 or the gas in the gas dissolving chamber 1 can be sent out from the vent 101. Moreover, due to the shape of the upper portion of the gas dissolving chamber 1, when the gas dissolving chamber 1 is not properly installed, for example, the gas dissolving chamber 1 is tilted due to problems with the installation accuracy, the gas can still smoothly enter and exit the vent 101.

[0063] Optionally, the liquid inlet 102 and the liquid outlet 103 are arranged on opposite sides of a plane passing through the center line of the gas dissolving chamber 1. Figure 5 As shown, there is a specific plane C on the gas dissolving chamber, which passes through the center line of the gas dissolving chamber 1, and the liquid inlet 102 and the liquid outlet 103 are distributed on opposite sides of the plane C. In this way, the fluid entering the gas dissolving chamber from the liquid inlet needs to flow out from the liquid outlet, and the flow path of the fluid in the gas dissolving chamber is relatively long, which improves the gas dissolving effect and is easy to generate vortexes to further improve the gas dissolving effect.

[0064] Optionally, the liquid inlet 102 and the liquid outlet 103 of the gas dissolving chamber in the present invention can be arranged on different walls of the gas dissolving chamber, for example, one of the liquid inlet 102 and the liquid outlet 103 is connected to the bottom wall of the gas dissolving chamber, and the other is connected to the peripheral wall of the gas dissolving chamber.

[0065] In the present invention, a vent valve 6 may be provided, and the gas dissolving chamber 1 may be inflated by opening and closing the vent valve 6. Specifically, in some embodiments of the present invention, the bubble generating device 100 further includes a vent valve 6, and one end of the vent valve 6 is connected to the vent port 101. When the vent valve 6 is opened, gas may enter the gas dissolving chamber 1 through the vent valve 6 and the vent port 101, and when the vent valve 6 is closed, the operation of the bubble generating device 100 will not be affected.

[0066] Optionally, the bubble generating device 100 further comprises an air pump 5, and the two ends of the vent valve 6 are respectively connected to the vent port 101 of the air dissolving chamber 1 and the air pump 5. The air pump 5 can actively fill the air dissolving chamber 1 with gas, and the air pressure filled by the air pump 5 can also promote the discharge of liquid in the air dissolving chamber 1.

[0067] Optionally, the bubble generating device 100 further includes a liquid inlet valve 4 , and the liquid inlet valve 4 is connected to the tapered section 21 . In other words, the liquid inlet valve 4 is connected to the inlet of the bypass member 2 .

[0068] Of course, the bubble generating device 100 may not be provided with the liquid inlet valve 4, but other structures (such as a water source switch, etc.) may be used to control whether liquid is supplied to the bubble generating device 100.

[0069] In addition, the liquid inlet 102 and the liquid outlet 103 in the present invention can be arranged to have a certain height difference, such as Figure 8-Figure 9 As shown, the liquid inlet 102 moves upward and is higher than the liquid outlet 103 . As the bubbles rise, this structure can further prevent the bubbles from entering the liquid outlet 103 and affecting cavitation at the bubbler 3 .

[0070] The washing device according to the embodiment of the present invention includes the bubble generating device 100 described above.

[0071] In some embodiments of the present invention, a washing device includes: an inner tank assembly, a bubble generating device 100 and a washing pump.

[0072] Specifically, the inlet of the washing pump is connected to the inner tank assembly, and the outlet of the washing pump is connected to the inner tank assembly. The connection between the washing pump and the inner tank assembly forms a circulating washing circuit, and the tableware and the like are washed through the washing circuit.

[0073] In addition, the outlet of the washing pump is also connected to the inlet of the bubble generating device 100. The outlet of the washing pump provides power to drive the liquid into the bubble generating device 100, thereby generating microbubbles. The outlet of the bubble generating device 100 can be connected to the inlet of the washing pump, so that after multiple cycles, more and smaller bubbles can be generated to participate in the washing process, thereby improving the washing effect. The outlet of the bubble generating device 100 can also be connected to the inner tank assembly to send the bubbles generated by the bubble generating device 100 to the inner tank assembly to wash dishes, etc.

[0074] Among them, the outlet of the washing pump in the present invention is respectively connected to the inlet of the bubble generating device 100 and the inner tank assembly, that is, the outlet of the washing pump will be divided into different pipelines to be connected to the bubble generating device 100 and the inner tank assembly respectively. The outlet connected to the inner tank assembly provides a liquid with a certain kinetic energy to the inner tank assembly for washing. The liquid connected to the bubble generating device 100 can generate bubbles and participate in the washing process, effectively improving the washing effect and efficiency.

[0075] According to the washing device of the embodiment of the present invention, a washing pump is used as a power to drive the liquid into the bubble generating device 100 to generate microbubbles, which are then involved in the washing process to improve the washing effect. In addition, since the bubble generating device 100 is not connected in series to the washing circuit (the washing pump is connected to the inner tank component), the impact on the circulating washing process is reduced, further improving the washing effect.

[0076] The present invention uses the washing pump of the washing equipment to provide energy, and can effectively embed the pressurized micro-bubble generating device 100 in the washing equipment to generate high-concentration micro-nano bubble water for washing. The bubble diameter is small and can be stored for a long time. In addition, the micro-bubbles are generated by the pump bypass circulation, and the impact on the mainstream flow pressure can be reduced by controlling the bypass flow, so that the micro-nano bubble water can be circulated during the washing process.

[0077] In other embodiments of the present invention, the bubble generating device 100 and the washing pump are respectively connected to the inner tank assembly, and the bubble generating device 100 and the washing pump are relatively independent.

[0078] According to the bubble generating device 100 of the embodiment of the present invention, the height requirement of the gas dissolving chamber 1 is reduced, so that the gas dissolving chamber 1 can adapt to a low installation space. An internal circulation mechanism of the gas in the gas dissolving chamber is established, and during the period of micro-bubble generation, the gas dissolving efficiency and bubble concentration are stable, and the gas-liquid contact area is increased.

[0079] The bubble generating device 100 according to the embodiment of the present invention is composed of an air pump 5, a bypass element 2 (which may be a jet pump, a venturi tube or a fluid element with similar functions), an air dissolving chamber 1, a bubbler 3, a vent valve 6, and a liquid inlet valve 4. Figures 1 to 9Similar connection methods should be within the scope of patent protection. This mainly lies in the connection method between the bypass piece 2 and the dissolved gas chamber 1. Under the premise of the same principle, adding or reducing some components or imports and exports should be within the scope of patent protection.

[0080] The principle of the bubble generating device 100 for producing microbubble solution is as follows: During the gas dissolving stage, the vent valve 6 is closed. High-pressure liquid (e.g., tap water) flows into the bypass 2 from the liquid inlet valve 4, and the bypass 2 generates a high-speed, low-pressure flow at the throat 22, sucking the gas in the upper part of the gas dissolving chamber 1 into the bypass 2, and the gas phase and the liquid phase are mixed for the first time in the jet pump / venturi.

[0081] Then, the mixed fluid enters the gas dissolving chamber 1. Since the bubbler 3 has a throttling effect, the liquid inlet speed of the gas dissolving chamber 1 is greater than the liquid outlet speed. At this time, the pressure of the gas dissolving chamber 1 continues to increase until the pressure is approximately equal to the total pressure of the high-pressure liquid. Due to the increase in pressure, the gas in the gas dissolving chamber 1 continues to dissolve in the liquid (the higher the pressure, the higher the dissolution rate of the gas). In this process, the gas in the upper part of the gas dissolving chamber 1 is also pressurized, and the amount of gas entering the bypass piece 2 is further increased until dynamic equilibrium is reached. The internal circulation mechanism of the gas in the gas dissolving chamber 1 is established, and the gas in the upper part of the gas dissolving chamber 1 is sucked into the bypass piece 2, and then returns to the gas dissolving chamber 1 and converges at the upper part of the gas dissolving chamber 1 to complete the internal circulation.

[0082] When the gas solution flows to the bubbler 3, in the throttling process, the flow cross-sectional area is continuously reduced, the flow velocity is increased, the pressure is reduced, and the gas is continuously precipitated in the form of cavitation, generating a large number of microbubbles to form a microbubble solution.

[0083] When draining, the liquid inlet valve 4 is closed, the vent valve 6 is opened, and the air pump 5 is turned on to drain the liquid by gas pressure. In another embodiment, the air pump 5 may not be used, and gravity drainage is performed by liquid level difference. At this time, the pipeline behind the bubbler 3 should be probed as low as possible to ensure a large liquid level difference.

[0084] Figure 6 and Figure 7 This is a schematic diagram of a gas dissolving chamber 1, the lower part of the gas dissolving chamber 1 is cylindrical, and the upper part is hemispherical or conical. Other similar shapes are within the scope of patent protection (the focus is on the gas dissolving chamber 1 structure based on the cyclone separation principle). It consists of a liquid inlet 102, a liquid outlet 103, and a vent 101. In this example, the angle between the liquid inlet and outlet 103 is 150 degrees, but changes in other angles are within the scope of patent protection.

[0085] The mixed fluid generated by the bypass 2 enters the gas dissolving chamber 1 from the liquid inlet 102. Since the gas dissolving chamber 1 is cylindrical, the liquid will rotate in the gas dissolving chamber 1. The rotation has two functions. On the one hand, it generates rotational shear stress to accelerate the dissolution of gas in the liquid; on the other hand, it produces a cyclone separation effect. Large bubbles as discrete phases will gather toward the center of rotation and float up, return to the bypass 2 through the vent 101, and enter the next cycle. The liquid outlet 103 is set at the outer ring of the cylinder. Due to the existence of cyclone separation, no large bubbles will enter the liquid outlet 103 to affect cavitation.

[0086] The present invention reduces the height requirement of the gas dissolving chamber 1. The high pressure of the gas in the upper part of the gas dissolving chamber 1 and the low pressure of the throat 22 of the bypass piece 2 are utilized to allow the gas to enter the gas dissolving chamber 1 from any direction. An internal circulation mechanism of the gas in the gas dissolving chamber 1 is established, and the gas dissolving efficiency and bubble concentration are stable. The liquid level in the gas dissolving chamber 1 no longer affects the bubble concentration. The gas and liquid are premixed through the bypass piece 2, thereby increasing the gas-liquid contact area. The rotational shear stress of the cylindrical gas dissolving chamber 1 increases the gas dissolving efficiency. Cyclone separation prevents large bubbles from entering the liquid outlet 103 and affecting cavitation at the bubbler 3.

[0087] Figure 4 and Figure 5 This is a schematic diagram of a gas dissolving chamber 1, and its structure is similar to the first gas dissolving chamber 1, except that the angle of the liquid outlet 103 is changed. At this time, the gas-liquid mixed fluid performs an S-shaped flow in the gas dissolving chamber 1, which prevents bubbles from being carried into the liquid outlet 103 when the inlet and outlet flow rates are large. This structure can further prevent bubbles from entering the liquid outlet 103 and affecting cavitation at the bubbler 3.

[0088] According to the bubble generating device 100 of the embodiment of the present invention, a connection method between the bypass member 2 and the gas dissolving chamber 1 is provided. Under the premise of the same principle, adding or reducing some components or imports and exports should be within the scope of patent protection. The gas dissolving chamber 1 is a gas dissolving chamber 1 structure based on the principle of cyclone separation. Taking the flow direction as the reference direction, in the gas dissolving chamber 1, the angle between the flow direction at the liquid inlet 102 and the flow direction at the liquid outlet 103 is greater than 90 degrees, that is, the rotation angle of the liquid flow in the gas dissolving chamber 1 needs to be greater than 90 degrees.

[0089] In addition, the liquid in the present invention is not limited to water, and the gas is not limited to air.

[0090] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0091] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0092] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0093] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0094] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0095] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A bubble generating device, characterized in that: include: An air dissolving chamber, the air dissolving chamber having an air vent, a liquid inlet and a liquid outlet; A bypass member, the bypass member having a tapered section, a throat and a gradually expanding section connected in sequence from an inlet to an outlet, the throat being connected to the vent and the outlet of the bypass member being connected to the liquid inlet of the gas dissolving chamber to form a circulation loop; a bubbler, the bubbler being connected to the liquid outlet; At least a part of the gas dissolving chamber is a rotary shell, and the liquid inlet and the liquid outlet are both connected to the rotary shell; The vent is arranged at the top of the gas dissolving chamber, and the liquid inlet and the liquid outlet are arranged at the bottom of the gas dissolving chamber.

2. The bubble generating device according to claim 1, characterized in that: The liquid inlet and the liquid outlet both extend in a clockwise direction or a counterclockwise direction of the rotary shell toward a direction away from the gas dissolving chamber.

3. The bubble generating device according to claim 2, characterized in that: The angle between the liquid inlet direction of the liquid inlet and the liquid outlet direction of the liquid outlet is no greater than 90°.

4. The bubble generating device according to claim 1, characterized in that: One of the liquid inlet and the liquid outlet extends in a clockwise direction of the gas dissolving cavity toward a direction away from the gas dissolving cavity, and the other extends in a counterclockwise direction of the gas dissolving cavity toward a direction away from the gas dissolving cavity.

5. The bubble generating device according to claim 4, characterized in that: The angle between the liquid inlet direction of the liquid inlet and the liquid outlet direction of the liquid outlet is greater than 90°.

6. The bubble generating device according to claim 5, characterized in that: The angle between the liquid inlet direction of the liquid inlet and the liquid outlet direction of the liquid outlet is in the range of 120° to 180°.

7. The bubble generating device according to any one of claims 1 to 6, characterized in that: The liquid inlet and the liquid outlet both extend along a tangent direction of the rotary shell.

8. The bubble generating device according to any one of claims 1 to 6, characterized in that: The lower part of the gas dissolving chamber is in the shape of a barrel; The upper part of the gas dissolving chamber is in a shape that gradually contracts from bottom to top.

9. The bubble generating device according to any one of claims 1 to 6, characterized in that: The liquid inlet and the liquid outlet are arranged on opposite sides of a plane passing through the center line of the gas dissolving chamber; or The liquid inlet and the liquid outlet are respectively arranged on different walls of the gas dissolving chamber.

10. The bubble generating device according to any one of claims 1 to 6, characterized in that: The liquid inlet is higher than the liquid outlet.

11. The bubble generating device according to claim 1, characterized in that: The bubble generating device further comprises a vent valve, one end of which is in communication with the vent port.

12. The bubble generating device according to claim 11, characterized in that: The bubble generating device also includes an air pump, and the two ends of the ventilation valve are respectively connected to the ventilation port of the air dissolving cavity and the air pump.

13. A washing device, characterized in that: It comprises a bubble generating device according to any one of claims 1-12.

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