Microbubble generator

Abstract

To enhance effectiveness of showering experience.SOLUTION: A microbubble generator includes a gas-liquid mixing tank, three control devices, a first circulation passage, and a second air supply passage. A first port A of a first control device communicates with a water supply passage, a second port A communicates with the air supply passage, a first port B of a second control device communicates with a third port A of the first control device, a pump communicates with a third port B of the second control device, a first port C of a third control device communicates with the pump, and a second port C communicates with the gas-liquid mixing tank. The first circulation passage makes a second port B of the second control device communicate with the gas-liquid mixing tank, and the second air supply passage makes the gas-liquid mixing tank communicate with the air supply passage. It is possible to continuously supply microbubbles with only one gas-liquid mixing tank and one pump, without obtaining microbubble water continuously through operation of a plurality of tanks and a plurality of pumps, thereby, a concentration of the microbubble water becomes extremely high.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the field of bath products, and in particular to microbubble generators. [Background technology]

[0002] Conventional microbubble machines include a gas-liquid mixing tank and a pump, for example, a configuration including one pump and one gas-liquid mixing tank, in which gas is sucked in to fill the tank, pumped and pressurized (with continuous drainage), and then sucked in and drained again. This configuration has the following drawbacks: 1. It is not possible to pump and suck in simultaneously with one pump, and 2. There is a vacuum period during the intake process where no microbubble water is discharged, making it uncomfortable to use. Furthermore, if multiple gas-liquid mixing tanks or multiple pumps are used, the volume is too large, making it inconvenient to carry, there is a large energy loss, it is loud, and the cost is high. Summary of the Invention [Problem to be solved by the invention]

[0003] The present invention provides a microbubble generator that overcomes the drawbacks of the microbubble generators in the background art. [Means for solving the problem]

[0004] The microbubble generator according to the technical aspect of the present invention for solving the above technical problems is as follows: a gas-liquid mixing tank (6); a first control device including a first port A (21) communicating with the water supply passage (11), a second port A (22) communicating with the air supply passage (12), a third port A (23), and first control means connecting the first port A (21), the second port A (22), and the third port A (23) and controlling whether the first port A (21) and the second port A (22) communicate with the third port A (23); a second control device including a first port B (31) communicating with a third port A (23) of the first control device, a second port B (32), a third port B (33), and second control means connecting the first port B (31), the second port B (32), and the third port B (33) and controlling whether the first port B (31) and the second port B (32) communicate with the third port B (33); a pump (4) connected to a third port B (33) of the second control device; a third control device including a first port (51) communicating with the pump (4), a second port (52) communicating with the gas-liquid mixing tank (6), a third port (53), and third control means that connects the first port C (51), the second port C (52), and the third port C (53) and controls whether the second port C (52) and the third port C (53) communicate with the first port C (51); a first circulation passage (101) communicating the gas-liquid mixing tank (6) with a second port B (32) of the second control device; The gas supply passage (12) and the gas-liquid mixing tank (6) communicate with each other through a second gas supply passage (103).

[0005] In one embodiment, the system further includes a first port D (91) communicating with the gas-liquid mixing tank (6), a second port D (92) communicating with the third port C (53) of the third control device, a third port D (93) for discharging water, and a fourth control device provided with fourth control means, which connects the first port D (91), the second port D (92), and the third port D (93) and controls whether the first port D (91) and the second port D (92) communicate with the third port D (93).

[0006] In one embodiment, a first check valve (7) is provided in the first circulation passage.

[0007] In one embodiment, a second check valve (8) is provided in the second air supply passage.

[0008] In one embodiment, the third port D (93) of the fourth control device communicates with a bubbler.

[0009] In one embodiment, the gas-liquid mixing tank (6) is provided with a first inlet (61) communicating with the second port C (52), and the first inlet (61) is provided with at least one flow divider located on the upper wall of the gas-liquid mixing tank (6) and having a plurality of passages.

[0010] In one embodiment, induction switches are provided at the bottom and top of the gas-liquid mixing tank (6) to connect the first control means, the second control means, and the third control means.

[0011] In one embodiment, the first controller, the second controller, the third controller, and the fourth controller are two-position three-way solenoid valves.

[0012] In one embodiment, the gas-liquid mixing tank (6) is provided with a first inlet (61) communicating with the second port C (52), a second inlet (62) communicating with the second gas supply passage (103), a first outlet (63) communicating with the first circulation passage (101), and a second outlet (64) communicating with the first port D (91). [Effects of the Invention]

[0013] The technical form of the present invention has the following advantages over the background art. With just one gas-liquid mixing tank and one pump, it is possible to continuously supply microbubbles, and by using the negative pressure caused by draining the gas-liquid mixing tank to draw air into the gas-liquid mixing tank, it is not necessary to operate multiple tanks and multiple pumps to continuously obtain microbubble water, and the concentration of the microbubble water becomes extremely high, resulting in a more effective shower experience. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a schematic diagram illustrating a structure of a microbubble generator according to a specific embodiment in a pre-start state. [Figure 2] FIG. 10 is a schematic diagram showing an example of a structure of a microbubble generator according to a specific embodiment in a gas storage process after startup. [Figure 3] FIG. 1 is a schematic diagram showing an example of a structure of a microbubble generator according to a specific embodiment in a water storage process after startup. [Figure 4] FIG. 1 is a schematic diagram showing an example of the structure of a microbubble generator in a circulating wastewater intake process 1 according to a specific embodiment. [Figure 5] FIG. 10 is a schematic diagram showing an example of the structure of a microbubble generator in a circulating wastewater intake process 2 according to a specific embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0015] 1 to 5, the microbubble generator includes a water supply passage 11, an air supply passage 12, a first two-position three-way solenoid valve 2, a second two-position three-way solenoid valve 3, a pump 4, a third two-position three-way solenoid valve 5, a gas-liquid mixing tank 6, a first circulation passage 101, a second circulation passage 103, and a fourth two-position three-way solenoid valve 9, the pump 4 being a membrane pump, the first circulation passage 101 being provided with a first check valve 7, and the second circulation passage 103 being provided with a second check valve 8.

[0016] The gas-liquid mixing tank 6 is provided with a first inlet 61, a second inlet 62, a first outlet 63, and a second outlet 64, the first inlet 61 and the second inlet 62 being provided on the top wall of the gas-liquid mixing tank 6, and the first outlet 63 and the second outlet 64 being provided on the bottom of the gas-liquid mixing tank 6. The first two-position three-way solenoid valve 2 is provided with a first port A21, a second port A22, and a third port A23, the second two-position three-way solenoid valve 3 is provided with a first port B31, a second port B32, and a third port B33, the third two-position three-way solenoid valve 5 is provided with a first port C51, a second port C52, and a third port C53, and the fourth two-position three-way solenoid valve 9 is provided with a first port D91, a second port D92, and a third port D93.

[0017] The first two-position three-way solenoid valve 2 has a first port A21 connected to the water supply passage 11, a second port A22 connected to the air supply passage 12, and a third port A23 connected to the first port B31 of the second two-position three-way solenoid valve 3, the third port B33 of the second two-position three-way solenoid valve 3 connected to the first port C51 of the third two-position three-way solenoid valve 5 via the pump 4, and the second port C52 of the third two-position three-way solenoid valve 5 connected to the first inlet 61 of the gas-liquid mixing tank 6, and the first port A23 of the first two-position three-way solenoid valve 2, the second two-position three-way solenoid valve 3, the pump 4, the third two-position three-way solenoid valve 5, and the first inlet 61 form a water / air supply passage. The first circulation passage 101 connects the first outlet 63 of the gas-liquid mixing tank 6 with the second port B32 of the second two-position three-way solenoid valve 3, and is provided with a first check valve 7. The first port D91 of the fourth two-position three-way solenoid valve 9 connects with the second outlet 64 of the gas-liquid mixing tank 6, and the second port D92 connects with the third port C53 of the third two-position three-way solenoid valve 5, the second port D92 and the third port C53 form a second circulation passage 102, and the third port D93 configures a water outlet. If necessary, the second port D92 further connects with a water outlet port 94, and the water outlet port 94 is provided with, for example, a bubbler. The second air supply passage 103 communicates with the air supply passage 12 and the second inlet 62 of the gas-liquid mixing tank 6, and is provided with a second check valve 8. If necessary, the air supply passage 12 is provided with a three-way valve, one side of which is connected to the outside air and the other side of which is connected to the second port A22 of the first two-position three-way solenoid valve 2 and the second air supply passage 103, respectively.

[0018] Optionally, a first induction switch 65 and a second induction switch 66 for detecting water level may be provided at the bottom and top of the gas-liquid mixing tank 6, respectively, to connect the first two-position three-way solenoid valve 2, the second two-position three-way solenoid valve 3, the third two-position three-way solenoid valve 5, and the fourth two-position three-way solenoid valve 9. The first water supply port 11 of the gas-liquid mixing tank 6 is provided with a plurality of flow dividers 67 installed on the upper wall of the tank, each with a plurality of narrow passages that generate high-speed jets of water (gas) that are then rotated and sprayed, forming fine droplets of sprayed water that can fully contact and fuse with the air, increasing the concentration of the generated microbubbles and making the microbubble water richer.

[0019] Referring to FIG. 1, the microbubble generator is in a state before starting up, and at this time, there is a small amount of water and gas in the gas-liquid mixing tank 6.

[0020] Referring to Figure 2, when the start key is pressed, the microbubble generator enters the air storage process after startup, as shown by the arrows in the figure. 1) The first two-position three-way solenoid valve 2 is switched to open the air supply passage 12 and close the water supply passage 11 (blocking the first port A21 and the third port A23 and connecting the second port A22 and the third port A23). 2) The second two-position three-way solenoid valve 3 (connecting the first port B31 and the third port B33 and connecting the second port B32 and the third port B33) and the third two-position three-way solenoid valve 5 (connecting the first port C51 and the second port C52 and connecting the first port C51 and the third port C53) are switched to open the pump 4 (membrane pump) and the water and air supply passages and close the first circulation passage 101. 3) The fourth two-position three-way solenoid valve 9 (which connects the third port D93 to the first port D91 and blocks the second port D92 from the third port D93) is switched to open the water outlet passage and close the second circulation passage 102. 4) The pump 4 is activated. 5) Air is sucked into the gas-liquid mixing tank 6 by the pump 4. Because the density of air is lower than that of water, the air is at the top of the water in the tank, and as the air fills the tank, the water in the tank is discharged from the water outlet port 94.

[0021] Referring to Figure 3, after the water is completely discharged, the second induction switch 66 is turned on, and the microbubble generator enters the water storage process after startup, as shown by the arrow in the figure. 1), the first two-position three-way solenoid valve 2 (which connects the first port A21 and the third port A23 and blocks the second port A22 and the third port A23) is switched to open the water supply passage 11 and close the air supply passage 12. 2), the second two-position three-way solenoid valve 3 (communicating the first port B31 with the third port B33 and blocking the second port B32 with the third port B33) and the third two-position three-way solenoid valve 5 (communicating the first port C51 with the second port C52 and blocking the first port C51 with the third port C53) are switched to open the pump 4 (membrane pump) and the water / air supply passages and close the first circulation passage 101. 3), the fourth two-position three-way solenoid valve 9 (communicating the third port D93 with the first port D91 and blocking the second port D92 with the third port D93) is switched to open the water outlet passage and close the second circulation passage 102. 4), the pump 4 continues to operate. 5) Water is drawn into the gas-liquid mixing tank 6 by the pump 4, and the water flow is compressed by the flow divider 67 at the inlet of the tank (the flow divider has multiple narrow passages) and is ejected in a rotating jet, forming a large number of atomized water droplets that thoroughly mix and come into contact with the air in the tank. Because the density of air is lower than that of water, many water droplets accumulate at the bottom of the air in the tank, forming a water flow. The pump 4 continuously pumps water and compresses the air in the tank (microbubble water is also discharged from the outlet port during pumping). However, because the flow rate of the outlet port 94 is much smaller than the flow rate of water pumped by the pump 4, air is dissolved in the water to form microbubble water, which is then cut by the bubbler at the outlet port 94, thereby ensuring a sufficient microbubble content in the water.

[0022] Referring to Figure 4, after the tank is filled with water, the first induction switch 65 is turned on, and the microbubble generator enters the circulation drainage / air intake process 1, as shown by the arrows in the figure. 1) The first two-position three-way solenoid valve 2 is switched to open the air supply passage 12 and close the water supply passage 11. 2) The second two-position three-way solenoid valve 3 (blocking the first port B31 and the third port B33, and connecting the second port B32 and the third port B33) and the third two-position three-way solenoid valve 5 (blocking the first port C51 and the second port C52, and connecting the first port C51 and the third port C53) are switched to open the pump 4 and the first circulation passage 101 and close the water supply / air supply passage. 3) The fourth two-position three-way solenoid valve 9 (which blocks the third port D93 from the first port D91 and connects the second port D92 to the third port D93) is switched to open the second circulation passage 102. 4) The pump 4 continues to operate. 5) The microbubble water in the gas-liquid mixing tank 6 is sucked by the pump 4 through the first circulation passage to the outlet port, cut off, and discharged. When the pump 4 pumps, negative pressure is generated in the gas-liquid mixing tank 6, and this negative pressure causes air to flow into the gas-liquid mixing tank 6 through the second air supply passage 103, in which the second check valve 8 is installed, thereby providing an aeration effect to the tank.

[0023] Referring to Figure 5, after the water is completely discharged, the second induction switch 66 is turned on for the second time, and the microbubble generator enters the circulating water discharge / air intake process 2, as shown by the arrows in the figure. 1.1) The first two-position three-way solenoid valve 2 is switched to open the water supply passage 11 and close the air supply passage 12. 1.2) The second two-position three-way solenoid valve 3 and the third two-position three-way solenoid valve 5 are switched to open the pump 4 and the water supply / air supply passages and close the first circulation passage. 1.3) The fourth two-position three-way solenoid valve 9 is switched to open the water outlet passage and close the second circulation passage. 1.4) The pump 4 continues to operate. The "circulating water storage process - circulating water discharge / air intake process 1 - circulating water discharge / air intake process 2" operation begins.

[0024] The above description is merely a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereby. In other words, any equivalent changes and modifications based on the claims and the contents of the specification of the present invention should be included within the comprehensive scope of the present invention.

Claims

1. A gas-liquid mixing tank (6); a first control device including a first port A (21) communicating with a water supply passage (11), a second port A (22) communicating with an air supply passage (12), a third port A (23), and first control means connecting the first port A (21), the second port A (22), and the third port A (23) and controlling whether the first port A (21) and the second port A (22) communicate with the third port A (23); a second control device including a first port B (31) communicating with a third port A (23) of the first control device, a second port B (32), a third port B (33), and second control means connecting the first port B (31), the second port B (32), and the third port B (33) and controlling whether the first port B (31) and the second port B (32) communicate with the third port B (33); a pump (4) connected to a third port B (33) of the second control device; a third control device including a first port (51) communicating with the pump (4), a second port (52) communicating with the gas-liquid mixing tank (6), a third port (53), and third control means for connecting the first port C (51), the second port C (52), and the third port C (53) and controlling whether the second port C (52) and the third port C (53) communicate with the first port C (51); a first circulation passage (101) communicating the gas-liquid mixing tank (6) with a second port B (32) of the second control device; A microbubble generator comprising: a second air supply passage (103) communicating with the air supply passage (12) and a gas-liquid mixing tank (6).

2. The microbubble generator according to claim 1, further comprising: a first port D (91) communicating with the gas-liquid mixing tank (6); a second port D (92) communicating with the third port C (53) of the third control device; a third port D (93) for discharging water; and a fourth control device provided with fourth control means, wherein the fourth control means connects the first port D (91), the second port D (92), and the third port D (93), and controls whether the first port D (91) and the second port D (92) communicate with the third port D (93).

3. 2. The microbubble generator according to claim 1, wherein a first check valve (7) is provided in the first circulation passage.

4. 2. The microbubble generator according to claim 1, wherein a second check valve (8) is provided in the second air supply passage.

5. The microbubble generator according to claim 2, wherein the third port D (93) of the fourth control device communicates with a bubbler.

6. The microbubble generator according to claim 1, characterized in that the gas-liquid mixing tank (6) is provided with a first inlet (61) communicating with the second port C (52), and the first inlet (61) is provided with at least one flow divider located on the upper wall of the gas-liquid mixing tank (6) and having a plurality of passages.

7. The microbubble generator according to claim 1, characterized in that induction switches connecting the first control means, the second control means, and the third control means are provided at the bottom and the top of the gas-liquid mixing tank (6).

8. 3. The microbubble generator according to claim 2, wherein the first control device, the second control device, the third control device, and the fourth control device are two-position three-way solenoid valves.

9. The microbubble generator according to claim 2, characterized in that the gas-liquid mixing tank (6) is provided with a first inlet (61) communicating with the second port C (52), a second inlet (62) communicating with the second gas supply passage (103), a first outlet (63) communicating with the first circulation passage (101), and a second outlet (64) communicating with the first port D (91).

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