WO2008056663A1 - Fine bubble generating apparatus - Google Patents

Abstract

In a fine bubble generating apparatus, a first configuration body (1) and a second configuration body (2) are permitted to relatively rotate in an air tight status. The first configuration body (1) is mainly provided with a liquid introducing path (3) and a gas introducing path (4) arranged at the center portion of the liquid introducing path. The second configuration body (2) is mainly provided with a spiral liquid introducing path (5) for introducing a liquid close to an exit of the gas introducing path (4) while changing the liquid from the liquid introducing path (3) into a spiral flow; and a gas-liquid mixture lead out port (6) for discharging a gas-liquid mixture composed of the liquid in the spiral flow and the gas introduced from the gas introducing path (4). The fine bubble generating apparatus can freely change the introducing directions of the gas and the liquid even after the apparatus is attached to a fixed section.

Description

 Specification

 Microbubble generator

 Technical field

 The present invention relates to a fine bubble generating device that generates fine bubbles in a liquid that increases the amount of oxygen present for water purification, activation, and other purposes.

 Background art

 [0002] As this type of microbubble generator, for example, as described in International Publication No. WO00 / 69550, a container body having a bottomed cylindrical space, and an inner wall circumferential surface of the space A pressurized liquid introduction port opened in a tangential direction in a part of the gas, a gas introduction hole established in the bottom wall of the cylindrical space, and a swirling gas-liquid mixture established in the front part of the space Some are equipped with outlets.

 [0003] According to the fine bubble generating device, the gas introduced into the container body from the gas introduction hole is discharged from the container body as fine bubbles (microvalve: diameter of 50 m or less).

 [0004] However, once the microbubble generator is attached to a fixed part, the gas and liquid introduction directions cannot be freely changed! /, And! / There was a problem.

 Disclosure of the invention

 [0005] Therefore, an object of the present invention is to provide a microbubble generator that can freely change the direction of introduction of gas and liquid once attached to a fixed portion.

 [0006] The fine bubble generating device of the present invention is configured such that the first component and the second component can be rotated relative to each other in an airtight state. The first component mainly includes a liquid introduction path and a central portion thereof. The second component mainly includes a spiral liquid introduction path that changes the liquid from the liquid introduction path into a spiral flow and reaches the vicinity of the outlet of the gas introduction path. It has a gas-liquid mixing outlet for discharging a gas-liquid mixture consisting of the liquid in a spiral flow and the gas in the gas introduction path.

[0007] In the above microbubble generator! /, The start end of the liquid introduction path is formed by a tube joint that allows easy connection and separation of the tube, and the flow rate of the start end of the gas introduction path is adjustable. It can also be formed by an air inlet with a fixed flow rate.

[0008] In the fine bubble generating device, the gas introduction path is between the portion connected to the gas introduction path of the flow rate adjustment valve on the first component side and the central solid part of the spiral liquid introduction path on the second component side. It is also possible to construct the tube so that each end of the tube is inserted into the tube, and the tube can be pulled out with the flow rate adjusting valve removed.

 [0009] Further, in any one of the above-mentioned fine bubble generating devices, the first component and the second component may be removed to make a kurakura.

[0010] According to the fine bubble generating device, the gas and liquid introduction directions can be freely changed even after the microbubble generator is attached to the fixed portion.

 Brief Description of Drawings

 FIG. 1 is a partial cross-sectional view of a fine bubble generating device B in Embodiment 1 of the present invention.

 FIG. 2 is an enlarged cross-sectional view of FIG.

 FIG. 3 is a partially enlarged view of a fine bubble generating device B in Embodiment 2 of the present invention.

 Explanation of symbols

 B Microbubble generator

 1 First component

 2 Second component

 3 Liquid introduction path

 4 Gas introduction path

 5 Spiral liquid introduction path

 50 Central solid part

 51 Spiral feather

 6 Gas-liquid mixing outlet

 7 Tube, fitting

 8 Shiri ^] Open

 BEST MODE FOR CARRYING OUT THE INVENTION

In the following, the best mode for carrying out the fine bubble generator of the present invention is described as an example. Will be described in detail.

 Example 1

 FIG. 1 is a partial sectional view of a microbubble generator B according to Embodiment 1 of the present invention, and FIG. 2 is an enlarged sectional view of FIG.

 [0015] As shown in FIG. 1, the fine bubble generating device B is configured such that the first component 1 and the second component 2 can be relatively rotated in an airtight state, and the first component 1 Mainly has a liquid introduction path 3 and a gas introduction path 4 provided at the center thereof, and the second structural body 2 mainly has a gas flow while changing the liquid from the liquid introduction path 3 into a spiral flow. It has a spiral liquid introduction path 5 that leads to the vicinity of the outlet of the introduction path 4, and a gas-liquid mixture outlet 6 that discharges the gas-liquid mixture consisting of the liquid in the spiral flow and the gas from the gas introduction path 4. Is.

 Here, in this fine bubble generating device B, as shown in FIG. 1 and FIG.

 The start end of 3 is formed by a tube joint 7 (so-called one-touch joint) that allows easy connection and separation of the tube, and the start end of the gas introduction path 4 is formed by a flow rate adjusting valve 8.

 As shown in FIG. 1, the lower end of the first component 1 is inserted into the upper end of the second component 2, and an O-ring 90 is inserted between the first and second components 1 and 2. In addition, the two split pins 91 and 91 are driven into the constituent walls of the first and second structural bodies 1 and 2 (the concave portion 92 is formed on the entire circumference, the bottom surface of the concave portion 92 and the split pin being the smallest diameter portion). 91 so that it can rotate in a sliding manner. The split pins 91 and 91 also function as a function of preventing the first structural body 1 from coming off from the second structural body 2.

 [0018] When the first component 1 and the second component 2 are separated, the pins 91 and 91 should be pushed out by the first and second components 1 and 2 as well! /.

 As shown in FIGS. 1 and 2 as described above, the first structure 1 has a liquid introduction path 3, a gas introduction path 4, a tube joint 7, and a flow control valve 8. The two-component body 2 has a spiral liquid introduction path 5 and a gas-liquid mixture outlet 6.

[0020] As shown in Fig. 1, the liquid introduction path 3 is formed in a horizontal L shape, and in a manner that guides the liquid that has entered from the tube t connected to the tube joint 7 downward, the spiral liquid It extends to the introduction path 5. Here, as shown in FIG. 1, the spiral liquid introduction path 5 has a substantially conical shape as a whole, and the spiral blade 51 is attached to the outer peripheral surface of the central solid part 50. I'm taking it.

 [0021] Therefore, the liquid that has entered from the tube t is the tube joint 7 → the horizontal liquid inlet 3 → the spiral liquid inlet 5 (the spiral flow is the first time) → the gas-liquid mixing outlet It is discharged through 6 routes.

 Next, as shown in FIGS. 1 and 2, the gas introduction path 4 is formed in a horizontal L-shape, and a flow rate adjusting valve that is generated when the liquid is discharged from the gas-liquid mixture outlet 6. Gas is sucked from the opening 80 due to the negative pressure in 8.

 [0023] Here, in this embodiment, most of the gas introduction path 4 is constituted by the tube 40, and the upper portion of the tube 40 is detachable from the concave portion 42 of the screw body 41, so that the tube 40 The lower part is held in such a manner that it can be detachably inserted into the recess 52 of the central solid part 50. Note that a through hole is formed in the screw body 41 by the concave portion 42 and a small-diameter hole 43 on the upper side thereof, and this through hole is connected to the gas introduction path 4 formed by the flow rate adjusting valve 8. Then, the tube 40 can be pulled upward (the reverse insertion is possible) with the flow rate adjusting valve 8 and the screw body 41 removed, whereby the first structural body 1 and the second structural body 2 are separated. The tube 40 can be exchanged at least. Further, a through hole is formed in the central fixed part 50 by the concave part 52 and a small diameter hole 53 below the concave part 52, so that the open part of the through hole faces the gas-liquid mixing outlet 6. Yes.

 [0024] As shown in FIG. 1 and FIG. 2, the tube joint 7 includes a tube seal 70, a knock ring 71, a lock ring on a cylindrical portion extending laterally of the first structural body 1 from the rear side toward the open portion. 72, collar 73, and release sleeve 74 are inserted in this order. In this tube joint 7, the tube t is inserted into the release sleeve 74, and the tube t is prevented from coming off via the lock ring 72. When the tube t is pulled out, the release sleeve 74 is pushed in so that the claw of the lock ring 72 is raised.

 [0025] The flow rate adjusting valve 8 is a commercially available one, and the amount of gas sucked from the opening 80 can be freely changed by rotating the operation unit 81 shown in FIGS. 1 and 2 forward and backward. be able to. The flow rate adjusting valve 8 has a tube connection function similar to that of the tube joint 7. The tube connection function may be omitted.

In addition, as shown in FIG. 1, the second structural body 2 has an enlarged diameter portion 20 in the upper region. A male screw 21 is formed in the lower region, and a nut 22 is screwed onto the male screw 21. Here, when the second structural body 2 is attached to the tank T (which contains the liquid), the wall plate of the tank T may be sandwiched between the enlarged diameter portion 20 and the nut 21.

Next, the function of the fine bubble generating device B will be described.

 [0028] When this fine bubble generating device B is used, as shown in FIG. 1, at least the gas-liquid mixing outlet 6 of the second component 2 is immersed in the liquid, and the pressurized liquid is supplied to the liquid introduction path 3. Pump.

 [0029] Then, the pressurized liquid that has entered from the tube t becomes the tube joint 7 → the horizontal liquid introduction path 3 → the spiral liquid introduction path 5 (at this time, the spiral flow becomes the first time, and immediately after that, the gas is introduced. The gas is mixed with the gas introduced from the channel 4) → the gas-liquid mixing outlet 6 is discharged, and a large amount of fine bubbles are generated in the liquid in the tank T. The generation mechanism of the fine bubbles is well known and will not be described in detail.

 Example 2

 FIG. 3 shows a partial cross-sectional view of the fine bubble generating device B in Embodiment 2 of the present invention.

[0031] The microbubble generator B of the second embodiment is basically the same as the first embodiment, except that the flow control valve 8 is screwed into the first structural body 1 in the first embodiment. In contrast, the flow regulating valve 8 is directly attached to the extended gas introduction path 4.

 [0032] It is apparent that the microbubble generator B of Example 2 has the same function.

 [0033] All materials such as the first structural body 1, the second structural body 2, the tube 40, and the like can be composed of metals such as brass and stainless steel and various synthetic resin materials depending on the liquid, environment, and use. .

 [0034] In the first embodiment, a flow rate adjustment valve (which can adjust the fluid amount) is used as the air inlet, but the orifice is not limited to this (the fluid amount is fixed). Is possible. In short, the starting end of the gas introduction path may be an air inlet that can adjust the flow rate or has a fixed flow rate.

Claims

The scope of the claims  [1] The first structure and the second structure can be rotated relative to each other in an airtight state, and the first structure mainly has a liquid introduction path and a gas introduction path provided at the central portion thereof. The second component mainly includes a spiral liquid introduction path that changes the liquid from the liquid introduction path into a spiral flow and reaches the vicinity of the outlet of the gas introduction path, and the liquid and gas introduction path that have become a spiral flow. And a gas-liquid mixture outlet for discharging a gas-liquid mixture composed of gas from the gas bubble generator.  [2] The start end of the liquid introduction path is formed by a tube joint that allows easy connection / separation of the tube, and the start end of the gas introduction path is formed by an air inlet with an adjustable flow rate or a fixed flow rate. The fine bubble generating device according to claim 1, wherein:  [3] Each end of the tube serving as the gas introduction path between the portion connected to the gas introduction path of the flow regulating valve on the first component side and the central solid part of the spiral liquid introduction path on the second component side 3. The fine bubble generating device according to claim 2, wherein the tube is pulled in a state in which the tube is inserted and the tube is pulled out in a state in which the flow rate adjusting valve is removed.  [4] The microbubble generator according to any one of claims 1 to 3, wherein the first component and the second component are removable.