JPH06218255A - Gas-liquid mixer - Google Patents

Abstract

PURPOSE:To provide a gas-liquid mixer for mixing or dissolving gas with or into a liquid. CONSTITUTION:In the gas-liquid mixer mixing or dissolving the gas with or into the liquid, the gas-liquid mixer is constituted of a first tank 3 provided with a liquid supply port 5 and a gas ejection port 6, a second tank 4 provided with a mixed liquid take out port 8, a communication port 7 for communicating the first tank with the second tank, and mixer part 30 provided on the communicating port 7. The mixer part 30 is provided so as to block the communicating port 7, and constituted of a fixing 10 having many passages communicating the first tank 3 with the second tank 4, and a rotary part 20 having a passages communicating with the passages of the fixing part 10 and placed in contact with the fixing part 10, and the core material is made of a restorable elastic raw material and it is formed into a shape gradually tapered toward the tip.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas-liquid mixing device for mixing or dissolving a gas in a liquid.

[0002]

2. Description of the Related Art Conventionally, this type of mixing device is one in which a gas is blown into a liquid to stir it. However, in such a simple stirring method, the degree of mixing and dissolution is limited because the dispersion of the blown gas, that is, the subdivision of bubbles is not sufficient. In view of such a problem, the present invention has an object to provide a gas-liquid mixing device having a higher mixing solubility than the conventional one.

[0003]

The present invention has the following means as means for achieving the above object. The first invention is
In a gas-liquid mixing device for mixing or dissolving gas in a liquid, the gas-liquid mixing device includes a first tank having a liquid supply port and a gas injection port, and a second tank having a mixed liquid outlet. A tank,
The first tank includes a communication port that connects the first tank and the second tank to each other, and a mixer section that is disposed at the communication port. The mixer section is arranged so as to close the communication port. And a fixed portion having a large number of passages communicating with the second tank, and a rotating portion having a passage which is in contact with the fixed portion and can communicate with the passage of the fixed portion. A second invention is a gas-liquid mixing device for mixing or dissolving gas in a liquid, wherein the gas-liquid mixing device includes a first tank having a liquid supply port and a gas injection port, and a mixed liquid taking-out port. A second tank disposed above the first tank, a communication port that connects the first tank and the second tank to each other, and a mixer section disposed in the communication port. The mixer portion is a tubular fixing portion that is arranged so as to close the communication port and has a plurality of passages on the peripheral surface that communicate with the first tank and the second tank, and a fixing portion that is inscribed in the fixing portion and that is inscribed in the fixing portion. It is configured by a cylindrical rotating portion having a passage on the peripheral surface that can communicate with the passage on the peripheral surface side. A third invention is a gas-liquid mixing apparatus for mixing or dissolving gas in a liquid, wherein the gas-liquid mixing apparatus includes a first tank having a liquid supply port and a gas injection port,
A second tank provided with the mixed solution outlet and arranged in the first tank; and a communication port for communicating the first tank and the second tank with each other,
And a mixer section disposed at the communication port, wherein the mixer section is provided so as to close the communication port and has a plurality of passages on the peripheral surface for communicating the first tank and the second tank with each other. A tubular shape having a fixed portion configured by coaxially overlapping the tubular bodies of the above and a passage that is inserted into the gap of the fixed portion and is capable of communicating with the passage of the tubular portion of the fixed portion on the peripheral surface. The body comprises a rotating part having a number corresponding to the number of gaps in the fixed part.

[0004]

According to the present invention, the liquid in the first tank is
The supply pressure directs the communication port to the second tank. In the mixer section of the communication port, the passage of the rotary section and the passage of the fixed section are instantaneously repeatedly opened and closed by the high speed rotation of the rotary section with respect to the fixed section. For this reason, large and small bubbles that have been injected into the first tank and not yet sufficiently mixed or dissolved in the liquid are finely cut by the friction between the edges of both the rotating portion and the fixed portion when passing through the passage. Go away. Due to the miniaturization of air bubbles by the cutting by the mixer portion when passing through the communication port, mixing and dissolution in passing through the communication port and in the second tank are further effectively promoted.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing an embodiment of a gas-liquid mixing apparatus for producing ozone water having sterilizing and deodorizing effects. FIG. 1 is a vertical cross-sectional view of this device. Reference numeral 1 in the drawing is a mixing tank, and the mixing tank 1 is divided by a partition wall 2 into a lower first tank 3 and an upper second tank 4.

The first tank 3 is provided with a liquid supply port 5 for supplying a liquid such as solvent water, and a gas injection port 6 for mixing or dissolving a gas such as ozone into the liquid. In the embodiment, the liquid supply port 5 is provided horizontally and the gas injection port 6 is provided vertically downward. However, the present invention is not limited to the illustrated example, and the liquid supply port 5 may be provided at an appropriate position. However, in order to increase the degree of contact with the liquid, the gas injection port 6 is optimally injected from the deepest part of the lowermost layer of the water tank.

At the center of the partition wall 2, a communication port 7 is formed to connect the first tank 3 and the second tank 4 with each other. The liquid in the first tank 3 flows to the second tank 4 through the communication port 7 due to the supply pressure, and is recovered from the liquid outlet 8 provided on the upper side of the second tank 4. In the first tank 3, ozone is injected into the liquid filling the tank 3 from the injection port 6 by an appropriate means such as jet injection so that ozone is easily mixed or dissolved as much as possible. Therefore, in this embodiment, in the first tank 3, the mixing or dissolving means according to the prior art is used as the first stage.

The communication port 7 is provided with a mixer section 30 composed of a fixed section 10 and a rotary section 20. The fixing portion 10 is fixed in a state in which a cylindrical body 11 having a bottomed cylindrical shape is covered so as to cover the communication port 7 from the second tank 4 side. As shown in FIG. 2, a large number of passages 13 communicating with the first tank 3 and the second tank 4 are bored in the peripheral surface 12 of the tubular body 11. In the illustrated example, the passage 13 is formed as a vertical rectangular hole in the body portion of the tubular body 11, but the present invention is not limited to this, and the fixing portion 10 is formed in the shape of a comb tooth to form teeth and teeth. A passage 13 through which the liquid passes may be used.

Referring again to FIG. 2, in the rotating portion 20 of the mixer portion 30, the tubular body 21 having a bottomed tubular shape is provided inside the tubular body 11 of the fixed portion 10 and the outer periphery of the rotating portion 20 is inside. It is rotatably fitted so as to come into contact, and the fixed portion 1
A large number of passages 23 communicating with each other so that the first tank 3 and the second tank 4 communicate with each other through the passage 13 of 0 are bored. In the illustrated example, as in the case of the fixed portion 10, the passage 23 is formed as a vertical rectangular hole in the body portion of the tubular body 21,
Not limited to this, the rotating portion 20 is formed in the shape of a comb tooth to form a passage 23 through which liquid passes between the teeth.
In the case of the embodiment, since the rotating part 20 has a bottomed cylindrical shape, the bottom plate has a passage 24 for guiding the liquid in the first tank into the rotating part.

In the above embodiment, the liquid in the first tank 3 is
It is directed to the communication port 7 leading to the second tank 4 by the supply pressure. In the mixer section 30 of the communication port 7, the high speed rotation of the rotating section 20 with respect to the fixed section 10 causes the passage 23 of the rotating section 20 and the passage 13 of the fixed section 10 to be opened and closed momentarily due to overlapping contact with each other. Has been repeated. Therefore, large and small air bubbles that have been injected into the first tank 3 and not yet sufficiently mixed or dissolved in the liquid when passing through the passages 23 and 13 between the rotating portion 20 and the fixed portion 10,
Fine bubbles are cut due to the friction between the edges of both passages, and due to the high-speed cutting by the mixer section 30 when passing through the communication port 7, the large and small bubbles left are extremely finely chopped and minimized. Due to this minimization and stirring in the process, mixing and dissolution when passing through the communication port 7 and in the second tank 4 are very efficiently promoted.

FIG. 3 shows another embodiment of the mixer section 30. The cylindrical body 11 serving as the fixed section 10 is coaxial with a plurality of cylindrical bodies 15, 16 and 17 with gaps 18 and 19 provided therebetween. On the other hand, the tubular body 21 serving as the rotating unit 20 similarly includes a plurality of tubular bodies 25 and 26 in the gap 2.
7 and coaxially overlap each other to form a gap 1 on the side of the fixed portion 10.
The cylindrical bodies 25 and 26 on the rotary unit 20 side are fitted and inserted in the rotary units 8 and 19. Although not shown, of course, in the same manner as described above, the passage 13 is provided on both the fixed portion 10 side and the rotating portion 20 side.
23 is provided, and a passage 24 for guiding the liquid into the rotating portion is also formed in the bottom portion on the rotating portion 20 side.

As shown in the example of FIG. 3, by cutting the fluid in the mixer section 30 in multiple stages, the remaining bubbles are further minimized, mixed and dissolved. Will be even more efficient. In the above embodiment, if the edge of the passage 23 on the rotating portion 20 side is formed obliquely so that the liquid is fed into the passage 13 on the fixed portion 10 side, the first tank is divided into the second tank. The flow of liquid to the tank can be promoted. Further, by adjusting the rotation speed of the rotating body 20, it is possible to arbitrarily adjust the degree of bubble dispersion, the degree of miniaturization, the mixing ratio, and the like. Furthermore, although the passage 13 in the above-described embodiment has a vertically long rectangular shape, it is not limited to this, and both the fixed portion 10 and the rotating body 20, or one passage 13,
23 can also have a mesh shape or a porous shape.

[0013]

According to the first and second aspects of the present invention, large and small bubbles that have been injected into the first tank and not yet sufficiently mixed or dissolved in the liquid pass through the passage between the rotating portion and the fixed portion. At that time, the edges of both passages are finely cut due to the friction between the edges. Due to the miniaturization of air bubbles by the cutting by the mixer portion when passing through the communication port, mixing and dissolution during the passage of the communication port and in the second tank are promoted. Also, the rotating body 20
It is also possible to arbitrarily adjust the miniaturization of bubbles by adjusting the rotation speed of. According to the third aspect of the invention, the cutting of the fluid in the mixer section 30 is performed in multiple stages, so that the miniaturization and minimization of the remaining bubbles are further promoted, and the mixing and dissolution of the gas in the liquid is further efficient. Be converted.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of the device of the present invention.

FIG. 2 is an end face explanatory view showing a state where a fixed portion and a rotating portion of the mixer portion are separated.

FIG. 3 is an end face explanatory view showing a state in which a fixed portion and a rotating portion are separated from each other, showing another embodiment of the mixer portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mixing tank 2 Partition 3 First tank 4 Second tank 5 Liquid supply port 7 Communication port 8 Outlet 10 Fixing part 11 Cylindrical part 13 Passages 15, 16, 17 Cylindrical body 18, 19 Gap 20 Rotating part 21 Cylinder Shaped part 23 Passage 24 Waterway 25, 26 Cylindrical body 27 Gap 30 Mixer part

Claims (3)

[Claims] 1. A gas-liquid mixing device for mixing or dissolving gas in a liquid, the gas-liquid mixing device comprising a first tank having a liquid supply port and a gas injection port, and a mixed liquid outlet. A second tank provided, a communication port that connects the first tank and the second tank to each other, and a mixer section disposed in the communication port, and the mixer section blocks the communication port. And a fixed portion having a large number of passages leading to the first tank and the second tank,
A gas-liquid mixing device, comprising: a rotating portion that is in contact with the fixed portion and has a passage that can communicate with the passage of the fixed portion. 2. A gas-liquid mixing device for mixing or dissolving a gas in a liquid, the gas-liquid mixing device comprising a first tank having a liquid supply port and a gas injection port, and a mixed liquid outlet. Comprising: a second tank arranged above the first tank, a communication port for communicating the first tank and the second tank, and a mixer section arranged in the communication port, The mixer portion is arranged so as to close the communication port, and has a cylindrical fixed portion having a plurality of passages on its peripheral surface that communicate with the first tank and the second tank, and a peripheral portion of the fixed portion that is inscribed in the fixed portion. A gas-liquid mixing device comprising: a cylindrical rotating portion having a passage on the peripheral surface, the passage being capable of communicating with the surface-side passage. 3. A gas-liquid mixing device for mixing or dissolving a gas in a liquid, the gas-liquid mixing device comprising: a first tank having a liquid supply port and a gas injection port; The mixer comprises a second tank arranged in the first tank, a communication port for communicating the first tank and the second tank, and a mixer section arranged in the communication port. The part is formed so as to coaxially overlap a plurality of cylindrical bodies that are arranged so as to close the communication port and that have a plurality of passages on the peripheral surface that allow the first tank and the second tank to communicate with each other. A rotating portion having a fixed portion configured and a tubular body having a passage, which is inserted into the gap of the fixed portion and is in communication with the passage of the tubular portion of the fixed portion, on the peripheral surface in correspondence with the number of gaps of the fixed portion. A gas-liquid mixing device comprising: