CN210303208U - Dissolved air tank of microbubble generator and microbubble generator - Google Patents

Abstract

The utility model discloses a dissolved air tank and microbubble generator of microbubble generator. A dissolved air cavity is defined in the dissolved air tank, the dissolved air tank is provided with an inlet and an outlet for water flow to and from, the inlet is positioned above the outlet, and the inlet and the outlet are staggered in the horizontal direction; the upper part of the dissolved gas tank is provided with a water inlet pipe communicated with the inlet, the lower part of the dissolved gas tank is provided with a water outlet pipe communicated with the outlet, and the water inlet pipe and the water outlet pipe are horizontally arranged. The utility model discloses a microbubble generator's dissolved air jar through the ingenious design of structure, utilizes the dissolved air chamber to come in and go out rivers velocity difference, and the difference in height of entry and export forms the water seal in the exit, makes the dissolved air chamber step up gradually and forms the high-pressure chamber to can improve the dissolved air volume. Dissolve the gas pitcher through setting up the oral siphon and outlet pipe level, can conveniently dissolve the assembly connection of gas pitcher and exterior structure.

Description

Dissolved air tank of microbubble generator and microbubble generator

The present application is a division of "11/05/2018, application No. 201821815922.8, and application name" microbubble generator and laundry treatment device ".

Technical Field

The invention relates to the field of washing devices, in particular to a dissolved air tank of a micro-bubble generator and the micro-bubble generator.

Background

At present, the microbubble technology is mainly applied in the field of environmental protection, and the application cases also exist in the fields of skin care, shower, washing and the like in the aspect of household. Most of current products are complicated in structure, some need additionally increase the water pump, some need a plurality of valve control, also have more restrictions to income water mode etc. simultaneously, lead to the cost higher.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the dissolved air tank of the micro-bubble generator, which has a simpler structure and is convenient to install.

The invention also aims to provide a microbubble generator with the dissolved air tank.

According to the dissolved air tank of the microbubble generator provided by the embodiment of the invention, the dissolved air chamber is limited in the dissolved air tank, the dissolved air tank is provided with an inlet and an outlet for water flow, the inlet is positioned above the outlet, and the inlet and the outlet are staggered in the horizontal direction; the upper portion of dissolving the gas pitcher is equipped with the intercommunication the oral siphon, the lower part of dissolving the gas pitcher is equipped with the intercommunication the outlet pipe of export, the oral siphon with the outlet pipe level sets up.

The dissolved air tank of the microbubble generator has the advantages that through the ingenious design of the structure, the water seal is formed at the outlet by utilizing the flow speed difference of the water flow in and out of the dissolved air cavity and the height difference between the inlet and the outlet, so that the dissolved air cavity is gradually pressurized to form the high-pressure cavity, and the dissolved air quantity can be improved. Dissolve the gas pitcher through setting up the oral siphon and outlet pipe level, can conveniently dissolve the assembly connection of gas pitcher and exterior structure.

In some embodiments, the water inlet pipe is located above the gas dissolving cavity, and an L-shaped channel which extends horizontally and then bends downwards is formed from the inside of the water inlet pipe to the inlet.

In some embodiments, the outlet is located above a bottom wall of the plenum chamber.

In some embodiments, the gas dissolving tank is formed by two gas dissolving half shells which are buckled with each other, the inlet is formed on one of the gas dissolving half shells, and the outlet is formed on the other gas dissolving half shell.

In some embodiments, each of the dissolved air half shells is an integral injection molded part.

In some embodiments, the two gas dissolving half shells are arranged up and down, the water inlet pipe is integrally formed on the upper gas dissolving half shell, and the water outlet pipe is integrally formed on the lower gas dissolving half shell.

In some embodiments, the two dissolved air half shells mate at the splice by a step surface contact.

In some embodiments, a baffle is further disposed in the gas dissolving tank, the baffle is at least partially located between the inlet and the outlet in the horizontal direction, and the baffle is provided with a gap and/or a through hole.

In particular, the horizontal distance between the baffle and the outlet is greater than the horizontal distance between the baffle and the inlet.

The microbubble generator according to an embodiment of the present invention includes: the dissolved air tank is the dissolved air tank according to the embodiment of the invention; the cavitation piece is arranged outside the gas dissolving tank and connected with the outlet, or the cavitation piece is arranged at the outlet.

The microbubble generator provided by the invention is provided with the dissolved air tank and the cavitation piece, and water seal is formed at the outlet by utilizing the flow speed difference of water flow in and out of the dissolved air cavity and the height difference between the inlet and the outlet, so that the dissolved air cavity is gradually boosted to form a high-pressure cavity, and the dissolved air quantity can be improved. The micro-bubble generator has the advantages of simple structure, convenient installation, good gas dissolving effect and lower cost.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a microbubble generator according to an embodiment of the present invention.

Figure 2 is a schematic cross-sectional view of a dissolved air vessel in accordance with an embodiment of the present invention.

Figure 3 is another schematic cross-sectional view of a dissolved air vessel in accordance with an embodiment of the invention.

Figure 4 is a schematic cross-sectional view of a dissolved air vessel in accordance with an embodiment of the present invention.

Figure 5 is another schematic cross-sectional view of a dissolved air vessel in accordance with an embodiment of the invention.

FIG. 6 is a schematic diagram of the structure of a venturi tube according to one embodiment of the present invention.

FIG. 7 is a schematic diagram of the construction of an orifice plate according to one embodiment of the invention.

Fig. 8 is a schematic structural view of a cavitation member according to an embodiment of the present invention.

Reference numerals:

a micro-bubble generator 100,

The gas dissolving tank 1, the gas dissolving cavity 10, the inlet 11, the outlet 12, the gas dissolving half shell 13, the water inlet pipe 14, the step surface 16, the reinforcing rib 17,

A cavitation part 2, a water passing cavity 20, a cavitation inlet 21, a cavitation outlet 22, a cavitation shell 23, a cavitation ball 24, a Venturi channel 25, a Venturi tube 28, an orifice plate 29,

Baffle 3, gap 31.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A microbubble generator 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 8.

The microbubble generator 100 according to the embodiment of the present invention, as shown in fig. 1 and 2, includes: a dissolved air tank 1 and a cavitation member 2. A dissolved air chamber 10 is defined within the dissolved air vessel 1, the dissolved air vessel 1 having an inlet 11 and an outlet 12 for the flow of water to and from the vessel. The cavitation member 2 is arranged outside the gas dissolving tank 1 and connected with the outlet 12, or the cavitation member 2 is arranged at the outlet 12, and the cavitation member 2 makes the gas dissolved in the water into bubbles through cavitation effect.

When the micro-bubble generator 100 is used, water enters the dissolved air from the dissolved air tank 1, then water containing high-concentration air solute enters the cavitation part 2, and micro-bubbles are produced by the cavitation part 2 by utilizing cavitation effect. The water stream discharged from the cavitation member 2 contains a large amount of microbubbles, and can be used for various purposes such as washing.

In the embodiment of the invention, the inlet 11 of the dissolved air tank 1 is positioned above the outlet 12, and the inlet 11 and the outlet 12 are horizontally staggered. And the micro bubble generator 100 is constructed such that the flow rate of the discharged water is smaller than the flow rate of the entered water when dissolving the gas, that is, the discharged water is less and the entered water is more in the unit time. The gas dissolving chamber 10 is closed by forming a water seal at the outlet 12, thereby completing the gas dissolving.

Specifically, since the flow rate of water injected into the dissolved air tank 1 from the inlet 11 is higher than the flow rate of water discharged, the water level in the dissolved air chamber 10 gradually rises after a certain period of time of water injection into the dissolved air tank 1. And because the inlet 11 of the gas dissolving tank 1 is positioned above the outlet 12, the water level of the gas dissolving cavity 10 can quickly exceed the outlet 12 after rising, so that water seal is formed at the outlet 12, and the gas dissolving cavity 10 is gradually boosted to form a high-pressure cavity.

It is emphasized here that although water is still discharged from the outlet 12 to the cavitation member 2 after the water seal is formed at the outlet 12, water is continuously introduced at the inlet 11, and thus the water level in the solvent chamber 10 is continuously raised, 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 approximate the water inlet pressure, the water outlet flow rate is equal to the water inlet flow rate.

Therefore, the upper cavity of the air dissolving cavity 10 forms a high-pressure cavity, and the solubility of the air in the high-pressure state is greater than that in the low-pressure state, so that the solubility of the air in the air dissolving cavity 10 in the water can be greatly increased. A large amount of air is dissolved in the water flowing to the cavitation member 2, so that a large amount of microbubbles can be generated by the cavitation member 2.

Air is a poorly soluble gas with respect to water. The percentage of the amount of air dissolved in water to the amount of air introduced is called the dissolved air efficiency, which is related to the temperature, the dissolved air pressure and the dynamic contact area of the gas phase and the liquid phase. The method of changing the water temperature or the air temperature is difficult to implement. The common method for improving the gas dissolving efficiency is to adopt a booster pump to boost the pressure in the gas dissolving cavity, but various valves are required to be configured, so the cost for configuring the booster pump is too high.

It is also known in the prior art to provide double inlets in the air dissolving device, one inlet for water and the other for air. Obviously, to inject air into the water, a booster pump is necessary to force the air into the water. Because the air inlet is located the below of cavitation spare in this scheme, the bubble of entering can flow towards cavitation spare rapidly and extrude, does not provide the space in the dissolved air jar and lets the bubble dissolve slowly, and the dissolved air effect is not ideal. The way of injecting air into water by means of pressurization is equivalent to directly pressing large air bubbles into water. The large bubbles have short retention time in water and insufficient dissolution time. Even if the cavitated member is squeezed into more small bubbles from large bubbles when passing through the cavitating member, the small bubbles are rapidly burst and released in use.

It should be emphasized that, in the embodiment of the present invention, it is proposed that the dissolved air tank 1 dissolves air in water as a solute, that is, the air is dispersed in water molecules in an ionic form. The dissolved state disperses air ions, and the air ions in water molecules are more uniform. The bubbles separated by cavitation effect are mostly only of nanometer and micrometer size at the initial stage of formation, which is the microbubbles that our microbubble generator 100 is expected to obtain. Even if the water with the micro-bubbles flows to the final use place, the micro-bubbles are mutually dissolved, most of the obtained micro-bubbles can still be kept in a millimeter level or even smaller, and the effect is optimal. Moreover, the air dissolved in water is generally insufficiently precipitated in the cavitation member 2, and the air dissolved in water slowly replenishes microbubbles during use.

In the embodiment of the invention, because the inlet 11 is positioned above the outlet 12, when the inlet 11 enters water, the water is flushed to the water surface from the upper part, so that the water surface is agitated, and meanwhile, part of high-pressure air is brought in, and the dynamic contact area between the air and the water can be increased. And because the inlet 11 and the outlet 12 are staggered in the horizontal direction, the flow path of the water flow in the dissolved air cavity 10 is longer, so that bubbles generated by the impact of the water flow are reduced to be entrained by the water flow and flow out of the outlet 12, and the dissolving time and the contact area of the excited bubbles in the water body are increased.

The microbubble generator 100 according to the embodiment of the present invention does not require electric power and does not require a plurality of valves, and the microbubble generation is realized with a relatively simple structure.

According to the micro-bubble generator 100 of the embodiment of the invention, through ingenious design, a water seal is formed at the outlet 12 by utilizing the flow speed difference of water flowing in and out of the gas dissolving cavity 10 and the height difference of the inlet 11 and the outlet 12, so that the gas dissolving cavity 10 is gradually boosted to form a high-pressure cavity, and the gas dissolving quantity can be increased. The microbubble generator 100 has a simple structure, a good gas dissolving effect, and a low cost.

In the present embodiment, the baffle 3 is at least partially located between the inlet 11 and the outlet 12 in the horizontal direction. The baffle 3 is provided with a gap 31, or the baffle 3 is provided with a through hole, or the baffle 31 is provided with a gap 31 and a through hole. The baffle 3 is disposed between the inlet 11 and the outlet 12, and serves to intercept water flowing from the inlet 11 while flowing toward the outlet 12. The slits 31 or through holes of the baffle 3 allow the water with dissolved air to flow through, but the bubbles in the air-dissolving chamber 10, which are excited by the water spray, are blocked. The large bubbles flow to the cavitation member 2 because the air quantity in the air dissolving tank 1 is wasted, the air pressure in the air dissolving cavity 10 is rapidly reduced to influence the dissolved air, and the cavitation effect is influenced after the large bubbles flow into the cavitation member 2.

In addition, the baffle 3 is arranged, so that more water splash can be formed by beating incident water flow to the baffle 3, and the baffle 3 can also be used as a reinforcing structure to enhance the pressure bearing capacity of the dissolved air tank 1.

The fact that the baffle 3 is at least partly located between the inlet 11 and the outlet 12 in a horizontal direction means that the baffle 3 may be located entirely between the inlet 11 and the outlet 12 as shown in fig. 4, and that the baffle 3 may also be located only partly between the inlet 11 and the outlet 12. For example, the baffle 3 may be formed as an arcuate plate or a spherical plate, with the baffle 3 shrouding the outlet 12, with the baffle 3 only partially between the inlet 11 and the outlet 12.

In some embodiments, as shown in fig. 4 and 5, the baffle 3 is formed as a flat plate and is vertically attached to the bottom wall of the dissolved air tank 1. Therefore, the air bubble generated by water flow excitation can be prevented from flowing out of the dissolved air tank 1, and the production and the manufacture can be facilitated. The flat baffle 3, whether integrally formed with the gas tank 1 or secured to the gas tank 1 by means of a plug or weld, is much easier than a curved plate. In other embodiments of the invention, the baffle 3 can also be formed as an inclined plate, a double-layer hollow plate, or can be formed as the above-mentioned arc-shaped plate, spherical plate, or the like.

Specifically, as shown in fig. 5, the slit 31 in the baffle 3 is formed in a vertical bar shape in the up-down direction, which is also a structure that greatly improves the manufacturability of the microbubble generator 100. In fig. 5, only one slit 31 is provided, and in other embodiments, the baffle 3 may be formed as a grating plate having a plurality of slits 31.

In other embodiments, the baffle 3 is a porous plate with a plurality of through holes, or both the slits 31 and the through holes are provided on the baffle 3.

In some embodiments, when the baffle 3 is provided with the slit 31, the width of the slit 31 is 50mm or less. It will be appreciated that the width of the gap 31 in the baffle 3 needs to be small to avoid bubbles formed by water flow excitation through the gap 31. Preferably, the width dimension of the slit 31 is in the range of 1-10 mm. Of course, the size of the gap 31 may be selected according to actual circumstances, and is not limited to the above range.

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, so as to ensure the blocking effect of the baffle 3 on the water flow excitation bubble, and thus ensure 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.

It should be additionally noted that the dissolved air tank 1 may be formed in any shape, and the shape of the dissolved air tank 1 is not specifically limited herein. However, the dissolved air tank 1 needs to ensure that the dissolved air tank 1 needs to have good sealing performance at other positions except the outlet 12 during the dissolved air operation.

In some embodiments, as shown in figures 3 and 5, the cross-sectional area of the portion of the chamber 10 perpendicular to the inlet 11 is small, it being understood that as water enters the chamber 10, the incident water flow will strike the inner walls of the chamber 10 and the level of the liquid in the chamber 10. More water bloom can be generated by the phenomenon, and the water bloom is favorable for bringing the water body into the high-pressure air above, so that the dissolving speed of the air in the water body is increased. The cross section of the part, perpendicular to the inlet 11, of the air dissolving cavity 10 is small, so that water splash generated in the process that water surface is hit by incident water flow of the inlet 11 is facilitated, and a relatively strong physical effect is generated between the water splash and the inner wall of the air dissolving cavity 10, and therefore the water body can dissolve air quickly.

In some alternative embodiments, as shown in fig. 3 and 5, the incident direction of the inlet 11 is vertically downward, and the inflow water flow is injected into the air dissolving chamber 10 in the vertical direction, which both increases the generation of water splash, thereby increasing the air dissolving speed, and 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 may be inclined, that is, the incident direction of the water flow may form an angle with the vertical direction, so that the impact area of the incident water flow is very large.

In some embodiments, in the horizontal direction, as shown in fig. 2 and 4, the inlet 11 and the outlet 12 are located at both ends of the dissolved air tank 1, thereby further lengthening the flow path of the water flow inside the dissolved air tank 1 and further reducing the water bubbles hit by the water flow to flow out through the outlet 12.

The cross section of the air-dissolving chamber 10 in the horizontal direction is square, and the inlet 11 and the outlet 12 are arranged at the positions farthest away from the straight line corresponding to the two ends of the square. For example, the air dissolution chamber 10 has a rectangular cross section in the horizontal direction, and the inlet 11 and the outlet 12 are located at both ends of the long side of the rectangle. Such a gas dissolving tank 1 is easy to manufacture and easy to arrange during assembly. Of course, in other embodiments of the present invention, the cross-sectional shape of the air dissolving chamber 10 may be formed in any shape and is not limited to a rectangle, a diamond, or other irregular square.

As shown in fig. 2 and 4, the inlet 11 is located at the top of the air dissolving chamber 10, so that the height difference between the inlet 11 and the bottom wall of the air dissolving chamber 10 can be enlarged, which is beneficial to water splash. The outlet 12 is located at the bottom of the air dissolving chamber 10, which facilitates the sealing of the outlet 12 by a water seal after a short period of water ingress, so that the air dissolving chamber 10 is configured as a sealed chamber.

Advantageously, as shown in fig. 2 and 4, the inlet 11 is located at the uppermost part of the air-dissolving chamber 10, which ensures that the incident water flow can excite more water flowers and improve the air-dissolving effect. Alternatively, the outlet 12 is located at the lowest part of the air-dissolving chamber 10, which enables the outlet 12 to be water-sealed as quickly as possible.

In some embodiments, the distance between the inlet 11 and at least one side wall of the gas dissolving chamber 10 is less than 50 mm. Namely, when the inlet 11 is in a working state, the distance between the projection of the inlet 11 to the water surface in the vertical direction and the inner wall surface of at least one air dissolving cavity 10 is less than 50 mm. The water flow at the inlet 11 is easier to impact the side wall of the dissolved air tank 1 to generate water splash, thereby improving the air dissolving effect of the dissolved air tank 1. Optionally, the distance between the inlet 11 and at least one side wall of the gas dissolving chamber 10 is between 1 and 20 mm. Of course, in other embodiments of the present invention, the inner wall of the air dissolving cavity 10 may be provided with a structure such as a protruding rib, so as to make it easier to stimulate the splash.

In some embodiments, as shown in fig. 2 to 5, the dissolved air tank 1 is formed by two dissolved air half shells 13, the inlet 11 is formed on one of the dissolved air half shells 13, and the outlet 12 is formed on the other dissolved air half shell 13. The inlet 11 and the outlet 12 are respectively arranged on the two dissolved air half shells 13, so that the forming is easy, and the strength of each dissolved air half shell 13 is not too low. The gas dissolving tank 1 has the advantages of strong manufacturability, convenience for batch production and low processing cost.

Optionally, the two dissolved air half-shells 13 are joined by welding or gluing, so as to ensure tightness.

In particular, the dissolved air tank 1 is a plastic part, optionally each dissolved air half shell 13 is an integrally injection molded part.

Further, as shown in fig. 1 to 5, the upper part of the gas dissolving tank 1 is provided with a water inlet pipe 14 communicated with the top of the gas dissolving chamber 10, the lower part of the gas dissolving tank 1 is provided with a water outlet pipe (not shown) communicated with the bottom of the gas dissolving chamber 10, and the water inlet pipe 14 and the water outlet pipe are horizontally arranged, so that the assembly is convenient. For example, when the microbubble generator 100 is used integrally with a detergent box, the dissolved air tank 1 is installed behind the detergent box, and the water inlet pipe 14 and the water outlet pipe are horizontally disposed to make assembly easier.

The water inlet pipe 14 communicates with the inlet 11 as shown in fig. 1 to 3. Likewise, the outlet pipe communicates with the outlet 12. In fig. 3, the water inlet pipe 14 is located above the air-dissolving chamber 10, and an L-shaped channel which extends horizontally and then bends downward is formed from the inside of the water inlet pipe 14 to the inlet 11. At this time, the water flow turns to make the water flow in a jet shape and fill the gas dissolving cavity 10, thereby further stimulating water bloom and increasing the gas dissolving amount.

As shown in fig. 4, the outlet 14 is located above the bottom wall of the gas dissolving chamber 10, so that the gas dissolving tank 1 needs to store water for a certain period of time before flowing out of the outlet 14 when water is initially introduced. The violent water jet impact facilitates air dissolution since the water jet from the inlet 11 will hit the water surface.

Advantageously, as shown in fig. 2 to 5, the two dissolved air half shells 13 are arranged up and down, the water inlet pipe 14 is integrally formed on the upper dissolved air half shell 13, and the water outlet pipe is integrally formed on the lower dissolved air half shell 13, so that the processing convenience and the sealing performance can be ensured.

Specifically, the two dissolved air half shells 13 are in contact fit at the splicing position through the step surface 16, so that the contact position of the two dissolved air half shells 13 is increased in contact area and contact strength. In addition, the step surface 16 is in contact fit, so that at least part of the contact surface of the two dissolved air half shells 13 is perpendicular or nearly perpendicular to the pressure of the inner wall of the dissolved air cavity 10. Therefore, the two gas dissolving half shells 13 are pressed more and more tightly at the splicing position due to the internal high pressure, and the splicing position is prevented from cracking and leaking gas due to the internal high pressure.

Furthermore, the outer surface of the dissolved air tank 1 is provided with reinforcing ribs 17 which are arranged in a transversely and longitudinally staggered manner, so that the strength of the dissolved air tank 1 can be increased, and deformation and air leakage caused by internal high pressure are avoided.

In the embodiment of the present invention, the cavitation member 2 may be configured as a cavitation device known in the art, for example, an ultrasonic generator.

In some alternative embodiments, as shown in fig. 6, the cavitation member 2 includes a venturi tube 28. This makes it possible to relatively easily separate out the air dissolved in the water flow passing through the cavitation member 2 and to form bubbles. The venturi tube 28 is adopted as the cavitation member 2, and unnecessary water pumps, heating devices or control valves and the like do not need to be designed, so that the structure of the cavitation member 2 is greatly simplified, the production cost is reduced, and the venturi tube 28 has no additional requirement on a water inlet mode, so that the cavitation member 2 can easily generate a large amount of bubbles.

In other alternative embodiments, as shown in fig. 7, the cavitation member 2 is an orifice plate 29 provided with a plurality of minute holes. This makes it possible to easily separate out the air dissolved in the water flow passing through the cavitation member 2 and to form bubbles. Specifically, the radius of the micropores on the orifice plate 29 is 0.01mm to 10 mm. Experiments prove that the orifice plate 29 with the parameters has better cavitation effect and can generate more bubbles. Of course, the specific parameters of the orifice plate 29 can be adjusted by the operator according to the actual working conditions, and are not limited to the above ranges.

In further embodiments, as shown in fig. 8, the cavitation member 2 includes: a cavitation shell 23 and a cavitation sphere 24. The cavitation shell 23 is internally provided with a water passing cavity 20, the water passing cavity 20 is provided with a cavitation inlet 21 and a cavitation outlet 22 for water flow to and from, and the cavitation inlet 21 is connected with the outlet 12 of the gas dissolving tank 1. The cavitation ball 24 is movably arranged in the water passing cavity 20, the water flowing in from the cavitation inlet 21 can push the cavitation ball 24 to be blocked 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 passing cavity 20.

When the cavitation ball 24 is blocked at the cavitation outlet 22, a venturi channel 25 communicated with the cavitation outlet 22 is arranged between the cavitation ball 24 and the inner wall of the water passing cavity 20. It is shown here that the cavitation bulb 24 does not completely close off the cavitation outlet 22, but leaves a venturi channel 25 so that the water stream with dissolved air gradually flows out of the cavitation outlet 22.

By arranging the movable cavitation ball 24 in the water passing cavity 20 in front of the cavitation outlet 22, when water flow dissolved with air is continuously introduced into the cavitation inlet 21, the continuously introduced water flow flows along the inner wall of the water passing cavity 20, and after encountering the cavitation ball 24, the cavitation ball 24 is pushed to move towards the cavitation outlet 22, so that the cavitation ball 24 moves to the front of the cavitation outlet 22 and gradually stops against the cavitation outlet 22 to form a venturi channel 25.

When the water flow with dissolved air solute passes through the venturi channel 25, the flow area will be reduced first and then increased. When the flow area is reduced and the flow velocity of the water flow with the gas solute is increased, the water pressure is reduced. When the flow area is increased and the flow velocity of the water flow of the gas solute is decreased, the water pressure is increased. The venturi channel 25 corresponds to a venturi tube, and generates a venturi effect to separate air from a solute state to form microbubbles. And the water flow keeps the cavitation sphere 24 stopped against the cavitation outlet 22 and also causes the water flow with dissolved air solutes to exit the venturi channel 25 more quickly.

In the process, the water flow which is continuously introduced is larger than the water flow which flows out, the water passing cavity 20 is used as a closed cavity, and when the cavitation outlet 22 of the closed cavity is stopped against the cavitation ball 24, the pressure in the closed cavity is increased, so that the cavitation effect is enhanced.

The cavitation piece 2 has the advantages of low cost and low processing difficulty, and is not possessed by other cavitation structures. The cavitation ball 24 is a movable sphere, when the micro-bubble generator 100 stops working, the water flow is reduced, and the cavitation ball 24 will leave the cavitation outlet 22 without the pressure of the water flow, so that the residual water in the micro-bubble generator 100 can be removed as soon as possible. On the one hand, the air is convenient to store in the air dissolving tank 1 in advance, and on the other hand, the accumulated water deposition is avoided, so that the breeding of excessive bacteria is avoided. In addition, the cavitation member 2 is also convenient to clean.

In some embodiments, the microbubble generator 100 further includes a gas valve provided on the dissolved air tank 1. When the air in the air dissolving tank 1 is gradually dissolved, the air in the air dissolving tank 1 is gradually reduced. Set up the pneumatic valve on dissolving gas pitcher 1, when the air that dissolves gas pitcher 1 is less, open the pneumatic valve, external air gets into and dissolves gas pitcher 1 for it has sufficient air to fill in dissolving gas pitcher 1, has guaranteed the air that dissolves in the increase rivers that microbubble generator 100 can last from this.

The water treated by the microbubble generator 100 according to the embodiment of the present invention contains a large amount of microbubbles, and the use amount of washing powder or detergent can be reduced by using the microbubble water as the washing water, so that water and electricity resources are saved, and the washing powder or detergent remaining on the clothes is reduced.

According to the laundry treatment apparatus of the embodiment of the present invention, the water inlet of the laundry treatment apparatus is provided with the microbubble generator 100 according to the above-mentioned embodiment of the present invention, and the microbubble generator 100 guides the water in which the microbubbles are generated to the tub of the laundry treatment apparatus.

According to the clothes processing device of the embodiment of the invention, the microbubble generator 100 is utilized, so that the cost is low and the microbubble manufacturing effect is good. The washing water contains a large amount of micro bubbles, so that the using amount of washing powder or detergent is reduced, water and electricity resources are saved, and the residual washing powder or detergent on clothes is reduced.

Other configurations of the laundry treating apparatus according to the embodiment of the present invention, such as the motor and the pulsator or drum, etc., and operations thereof are known to those of ordinary skill in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A dissolved air tank of a microbubble generator, which is characterized in that a dissolved air cavity is defined in the dissolved air tank, the dissolved air tank is provided with an inlet and an outlet for water flow, the inlet is positioned above the outlet, and the inlet and the outlet are staggered in the horizontal direction;

the upper portion of dissolving the gas pitcher is equipped with the intercommunication the oral siphon, the lower part of dissolving the gas pitcher is equipped with the intercommunication the outlet pipe of export, the oral siphon with the outlet pipe level sets up.

2. A dissolved air tank of a microbubble generator as set forth in claim 1, wherein the water inlet pipe is located above the dissolved air chamber, and an L-shaped passage extending horizontally and then bent downward is formed inside the water inlet pipe to the inlet.

3. A dissolved air tank of a microbubble generator as set forth in claim 1, wherein the outlet is located above a bottom wall of the dissolved air chamber.

4. A dissolved air tank of a microbubble generator as set forth in claim 1, wherein the dissolved air tank is provided by two dissolved air half shells being fastened to each other, the inlet is provided on one of the dissolved air half shells, and the outlet is provided on the other dissolved air half shell.

5. The dissolved air tank of a microbubble generator as set forth in claim 4, wherein each of the dissolved air half shells is an integrally injection-molded piece.

6. A dissolved air tank of a microbubble generator as set forth in claim 4, wherein two dissolved air half shells are provided one above the other, the water inlet pipe is integrally formed on the upper dissolved air half shell, and the water outlet pipe is integrally formed on the lower dissolved air half shell.

7. A dissolved air tank of a microbubble generator as set forth in claim 4, wherein the two dissolved air half shells are fitted in contact by a step surface at the joint.

8. A dissolved air tank of a microbubble generator according to claim 1, wherein a baffle is further provided in the dissolved air tank, the baffle is at least partially located between the inlet and the outlet in a horizontal direction, and the baffle is provided with slits and/or through holes.

9. A dissolved air tank of a microbubble generator according to claim 8, wherein a horizontal distance between the baffle and the outlet is larger than a horizontal distance between the baffle and the inlet.

10. A microbubble generator, comprising:

a dissolved air tank that is the microbubble generator according to any one of claims 2 to 9;

the cavitation piece is arranged outside the gas dissolving tank and connected with the outlet, or the cavitation piece is arranged at the outlet.

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