KR101343254B1 - Fine bubble generating apparatus - Google Patents

Abstract

The present invention relates to a microbubble generating device, wherein the microbubble generating device makes the first structure 1 and the second structure 2 relatively rotatable in an airtight state, and the first structure 1 is a liquid introduction path ( 3) and a gas introduction passage 4 provided at the central portion thereof, and the second structure 2 is connected to the outlet portion of the gas introduction passage 4 while changing the liquid from the liquid introduction passage 4 into a spiral flow. And a gas-liquid mixing outlet 6 for discharging a gas-liquid mixture composed of a spiral flow and a gas from the gas introduction passage 4. It is characterized in that it is possible to provide a microbubble generating device capable of freely changing the introduction direction of gas and liquid even after being attached to the fixed portion.

Description

Fine bubble generator {FINE BUBBLE GENERATING APPARATUS}

The present invention relates to a microbubble generating device for generating fine bubbles in a liquid to increase the amount of dissolved oxygen for water purification, activation, and other purposes.

As this kind of microbubble generating device, as described, for example, in WO 00/69550, a container body having a cylindrical space with a bottom and a part of the inner wall circumferential surface of the space in a tangential direction thereof. The pressurized liquid inlet opened, the gas introduction hole formed in the bottom wall of the said cylindrical space, and the swirling gas-liquid mixture outlet formed in the front-end | tip of the said space are provided.

According to the microbubble generating device, gas introduced into the container main body from the gas introduction hole is discharged from the container main body as microbubbles (microvalve: 50 µm or less in diameter).

However, in the microbubble generating device, there is a problem in that, once attached to the fixed portion, the introduction direction of gas and liquid cannot be freely changed.

Therefore, an object of the present invention is to provide a microbubble generating device capable of freely changing a gas and a liquid introduction direction even after being attached to a fixed portion.

The microbubble generating device of the present invention has a first structure including a liquid introduction passage and a gas introduction passage provided at a central portion thereof, and a spiral shape reaching the exit of the gas introduction passage while changing the liquid from the liquid introduction passage into a spiral flow. And a second structure including a liquid introduction passage and a gas-liquid mixing outlet for discharging a gas-liquid mixture consisting of a spiraled liquid and a gas from the gas introduction passage, wherein the first and second components are in an airtight state. It is connected so that relative rotation is possible.

In the microbubble generating device, the beginning end of the liquid introduction path may be formed by a tube joint that is easy to connect and disconnect the tube, and the beginning end of the gas introduction path may be formed by an adjustable flow rate or a fixed air inlet. .

Further, in the microbubble generating device, a portion of the tube serving as a gas introduction passage between the portion connected to the gas introduction passage of the flow rate control valve on the first component side and the central fixing portion of the helical liquid introduction passage on the second component side. It may be hypothesized by inserting each end portion, and the tube may be pulled out while the flow rate adjustment valve is removed.

In any of the above fine bubble generators, the first and second structures may be separated.

According to the said micro bubble generator, even if it attaches once to a fixed part, the introduction direction of gas and a liquid can be changed freely.

1 is a partial cross-sectional view of a fine bubble generating device (B) of Embodiment 1 of the present invention,

2 is an enlarged cross-sectional view of FIG. 1, and

3 is a partially enlarged view of the microbubble generating device B according to the second embodiment of the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

B: Microbubble generating device 1: First structure

2: 2nd construct 3: liquid introduction furnace

4: gas introduction furnace 5: spiral liquid introduction furnace

50: center fixing part 51: spiral blade

6: gas-liquid mixing outlet 7: tube joint

8: flow control valve

(Best Mode for Carrying Out the Invention)

Best Mode for Carrying Out the Invention Hereinafter, embodiments will be described in detail as a best mode for carrying out the microbubble generating device of the present invention.

(Example 1)

1 is a partial cross-sectional view of the microbubble generating device B according to the first embodiment of the present invention, and FIG. 2 is an enlarged cross-sectional view of FIG.

As shown in FIG. 1, the microbubble generating device B is formed by allowing the first structure 1 and the second structure 2 to be relatively rotatable in an airtight state, and the first structure 1 is It has a liquid introduction passage 3 and a gas introduction passage (4) provided at the center portion thereof, the second structure (2) is a gas introduction passage while changing the liquid from the liquid introduction passage (3) into a spiral flow ( And a gas-liquid mixing inlet 6 for discharging a gas-liquid mixture composed of a spiral flow and a gas from the gas introduction passage 4 to the vicinity of the outlet of 4). .

Here, in this microbubble generating device B, as shown in FIG. 1 or FIG. 2, the start end of the liquid introduction path 3 is connected to the tube joint 7 (so-called one-touch joint) that can easily connect and disconnect the tube. And the start end of the gas introduction passage 4 is formed by the flow regulating valve 8.

As shown in FIG. 1, the lower end of the first construct 1 is inserted into the upper end of the second construct 2, and the O-ring 90 is interposed between the first and second constructs 1 and 2. In addition, the recess 92 is formed to insert two split pins 91 into the constituent walls of the first and second constructs 1 and 2 (a recess 92 around the entire circumference, and is the minimum diameter portion 92). ) So that the bottom surface and the split pin 91 are rotatable in a sliding form. In addition, the split pin 91 also functions as a release fixing function of the first structure 1 with respect to the second structure 2.

In the case where the first structure 1 and the second structure 2 are separated from each other, the pin 91 may be extruded from the first and second structures 1 and 2.

As above-mentioned, the 1st structure 1 is equipped with the liquid introduction path 3, the gas introduction path 4, the tube joint 7, and the flow control valve 8 as shown in FIG. In addition, the second structure 2 includes a spiral liquid introduction passage 5 and a gas-liquid mixing outlet 6.

As shown in FIG. 1, the liquid introduction passage 3 is formed in a horizontal L shape, and is a spiral liquid in the form of guiding the liquid introduced from the tube t connected to the tube joint 7 downward. It extends to the introduction path 5. The spiral liquid introduction passage 5 has a conical shape as a whole as shown in FIG. 1, and adopts a form in which the spiral blade 51 is mounted on the outer circumferential surface of the central fixing part 50.

Therefore, the liquid introduced from the tube t is passed through the tube joint 7 → the horizontal L-shaped liquid introduction passage 3 → the spiral liquid introduction passage 5 (which at this time becomes a spiral flow) → the gas-liquid mixing outlet. Discharged in the path of (6).

Subsequently, as shown in FIG. 1 or FIG. 2, the gas introduction passage 4 is formed in a horizontal L-shape, and the flow rate regulating valve 8 generated when the liquid is discharged from the gas-liquid mixing outlet 6. The gas is sucked from the opening portion 80 by the negative pressure in the cavity.

Here, in this embodiment, most of the gas introduction passage 4 is constituted by the tube 40, and the upper portion of the tube 40 is inserted into the recess 42 of the screw body 41 in a detachable manner. The lower part of the tube 40 is held in such a manner that the lower part of the tube 40 can be inserted into the recess 52 of the central fixing part 50 in a detachable manner. In addition, a through hole is formed in the screw body 41 by the concave portion 42 and a smaller diameter hole 43 on the upper side thereof, and the through hole introduces a gas formed by the flow regulating valve 8. It is connected to the furnace (4). Then, the tube 40 is pulled upward in a state where the flow rate adjusting valve 8 and the screw 41 are removed so that the tube 40 can be pulled out (or vice versa) so that the first structure 1 and the second structure can be removed. The tube 40 can be replaced without removing the structure 2. In addition, a through hole is formed in the central fixing portion 50 by the concave portion 52 and a smaller diameter hole 53 on the lower side thereof, and the opening of the through hole is formed in the gas-liquid mixing outlet 6. I'm trying to face it.

As shown in FIG. 1 or FIG. 2, the tube seam 7 has a tube seal 70, a back ring 71, and a lock ring from the inside toward the opening in a horizontally extending cylindrical portion of the first structure 1. It consists of 72, the collar 73, and the release sleeve 74 in order. Moreover, in this tube joint 7, the tube t is inserted in the release sleeve 74, and the tube t is fixed through the lock ring 72. As shown in FIG. In addition, when removing the tube t, the release sleeve 74 may be pushed in and the jaw of the lock ring 72 may be raised.

When the flow rate adjustment valve 8 uses a commercially available thing and reverse rotation of the operation part 81 shown in FIG. 1 or FIG. 2, the amount of gas drawn from the opening part 80 can be changed freely. In addition, although this flow regulating valve 8 has the same tube connection function as the said tube joint 7, the tube connection function may not be required.

In addition, as shown in FIG. 1, the second structure 2 includes an enlarged diameter portion 20 in the upper region, a male screw 21 in the lower region, and a nut () in the male screw 21. 22) is fitted. In this case, when the second structural body 2 is mounted on the tank T (which contains liquid therein) or the like, the wall plate of the tank T is fitted by the enlarged diameter portion 20 and the nut 22. Do it.

Subsequently, the action of the microbubble generating device B will be described.

When using this fine bubble generating device B, as shown in FIG. 1, at least the gas-liquid mixing outlet 6 of the 2nd structure 2 is immersed in a liquid, and pressurized liquid is poured into the liquid introduction path 3, and is carried out. I send it to you.

In this way, the pressurized liquid introduced from the tube (t) is the "tube seam (7)" → "the horizontal L-shaped liquid introduction passage (3)" → "spiral liquid introduction passage (5)" (at this time) Spiral flow, and immediately afterwards, it is mixed with the gas guided from the gas introduction passage 4) → is discharged through the path of the 'gas-liquid mixing outlet 6', and the liquid in the tank T Fine bubbles are generated. In addition, since the generation mechanism of this micro bubble is well-known, it is not described in detail.

(Example 2)

3 is a partial cross-sectional view of the microbubble generating device B of Example 2 of the present invention.

The microbubble generating device B of the second embodiment is basically the same as that of the first embodiment, but the difference is that in the first embodiment, the flow rate control valve 8 is screwed to the first structure 1. In contrast, the flow rate adjusting valve 8 is directly attached to the extended gas introduction passage 4.

It is clear that the fine bubble generator B of Example 2 has the same function.

All materials, such as the 1st structure 1, the 2nd structure 2, the tube 40, etc. can be comprised with metals, such as brass and stainless steel, and various synthetic resin materials according to a liquid, an environment, and a use.

In the first embodiment, a flow rate regulating valve (which can adjust the amount of fluid) is used as the air inlet, but the present invention is not limited thereto, and the orifice (fixing the amount of fluid) can be used. That is, the start end of the gas introduction passage may be a flow rate adjustable or fixed flow inlet port.

Claims (5)

A gas introduction passage through which the gas introduced from the start end flows out from the outlet, and a liquid introduction passage through which the liquid introduced from the start end flows out from the outlet, the gas introduction passage extending along the liquid introduction passage, A first structure configured such that an outlet of the introduction passage is located near an outlet of the liquid introduction passage, The helical liquid introduction passage reaching the exit of the gas introduction passage while changing the liquid from the liquid introduction passage into a spiral flow, and the gas from the gas introduction passage is mixed with the helical liquid to discharge the gas-liquid mixture. A second structure having a gas-liquid mixing outlet, The edge part of the said 1st structure is connected so that relative rotation is possible with respect to the edge part of the said 2nd structure so that the microbubble generation apparatus characterized by the above-mentioned. The method of claim 1, The start end of the liquid introduction passage is formed by a tube joint 7 which allows easy connection and disconnection of the tube, and the start end of the gas introduction passage is formed by the flow regulating valve 8 or the fixed air inlet. Fine bubble generator. The method of claim 2, The tube 40 between the part connected to the gas introduction path 4 of the flow regulating valve 8 of the 1st structure side, and the central fixed part 50 of the spiral liquid introduction path 5 of the 2nd structure side. ) Is inserted into the recessed portion 42 on the first body side, and the lower portion is inserted into the recessed part 52 on the second body side, The microbubble generating device, characterized in that the tube (40) is pulled upward and pulled out in the state in which the flow rate control valve (8) is separated. 4. The method according to any one of claims 1 to 3, Microbubble generating device, characterized in that the first structure and the second structure is separable. The method of claim 1, The liquid introduction passage and the gas introduction passage are each formed in a horizontal L shape, and the first and second components insert the lower ends of the first structures into the upper ends of the second structures, The first and second structures 1 and 2 are interposed between the O-ring 90 and the concave portion 92 is formed in the entire circumference, and the bottom surface and the split pin 91 of the concave portion 92 which are the smallest diameter portions. A fine bubble generator, characterized in that two split pins (91, 91) are inserted into the constituent walls of the first and second structures (1, 2) so as to be rotatable in this sliding form.

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