JP6847338B2 - Gas-containing liquid generator - Google Patents

Description

The present invention relates to a gas-containing liquid generator, and is applied to, for example, the generation of nanobubble water.

In recent years, microbubble water containing microbubbles and nanobubble water containing nanobubbles have been attracting attention in various technical fields. There is no clear definition of microbubbles and nanobubbles, but in general, microbubbles refer to bubbles with a particle size (diameter) of about 1 μm to 100 μm, and nanobubbles are bubbles with a particle size (diameter) of less than 1 μm. (See Patent Documents 1 and 2).

JP-A-2015-77566 Japanese Unexamined Patent Publication No. 2014-147870

Generally, bubbles such as microbubbles and nanobubbles are generated by mixing a gas and a liquid to generate a gas-containing liquid and injecting the gas-containing liquid. Recent studies have revealed that bubbles are formed by the formation of bubble nuclei in a gas-containing liquid and then the binding of the bubble nuclei to each other. A bubble nucleus is an aggregate of gas molecules before they become bubbles, separated from liquid molecules. It has also been found that a large number of fine bubbles such as nanobubbles can be generated from a gas-containing liquid containing a large number of bubble nuclei.

When the gas-containing liquid is used for various purposes, it is desirable that the bubbles are fine, and it is desirable that the gas-containing liquid contains fine bubbles at a high concentration. The reason is that the fine bubbles last for a long time in the gas-containing liquid. As described above, the gas-containing liquid containing fine bubbles at a high concentration can be generated from the gas-containing liquid containing bubble nuclei at a high concentration. Therefore, it is required to realize a method capable of generating a gas-containing liquid containing a high concentration of fine bubbles by generating a large number of bubble nuclei in the gas-containing liquid.

In recent years, the use of gas-containing liquids has been expanding not only in the industrial field and general consumption field, but also in the medical field and agricultural field. Therefore, there is an increasing need for a gas-containing liquid generator capable of producing a gas-containing liquid containing fine bubbles at a high concentration with a simple structure for the medical field and the agricultural field.

Therefore, an object of the present invention is to provide a gas-containing liquid generator capable of generating a gas-containing liquid containing fine bubbles at a high concentration.

The gas-containing liquid generator according to one aspect of the present invention includes first and second syringes for accommodating the gas-containing liquid, a first port for the first syringe, and a second port for the second syringe. And the gas-containing liquid flowing between the first injection tube and the first port, or between the second injection tube and the second port, and a connecting portion including a third port for an injection needle. A bubble is generated in the gas-containing liquid that flows between the gas-containing liquid treatment unit and the first injection tube and the first port, or between the second injection tube and the second port. A valve that changes into a first state in which the gas-containing liquid flows between the bubble generating unit and the first and second ports, and a second state in which the gas-containing liquid flows between the first and third ports. And. Further, the gas-containing liquid treatment unit has a flow path including a plurality of abdomen having an annular inner peripheral surface and a plurality of nodes having an annular inner peripheral surface alternately, and along the flow path. A flow path forming member for carrying the gas-containing liquid, a linear member provided along the flow path in the flow path forming member, and a linear member provided around the linear member in the flow path forming member. The device includes an obstacle member that functions as an obstacle to the flow of the gas-containing liquid.

According to the present invention, it is possible to provide a gas-containing liquid generator capable of generating a gas-containing liquid containing fine bubbles at a high concentration.

It is the schematic which shows the structure of the gas-containing liquid generation apparatus of 1st Embodiment. It is a figure for demonstrating the formation process of a bubble nucleus in 1st Embodiment. It is sectional drawing which shows the specific example of the gas-containing liquid generation apparatus of 1st Embodiment. It is sectional drawing for demonstrating the usage of the gas-containing liquid generation apparatus of 1st Embodiment. It is sectional drawing which shows the structure of the 1st connection pipe of 1st Embodiment. It is sectional drawing for demonstrating the dimension of the 1st connection pipe of 1st Embodiment. It is sectional drawing which shows the modification of the 1st connection pipe of 1st Embodiment. It is sectional drawing which shows the modification of the 1st injection part of 1st Embodiment. It is the schematic which shows the structure of the gas-containing liquid generation apparatus of 2nd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First Embodiment)
FIG. 1 is a schematic view showing the configuration of the gas-containing liquid generator of the first embodiment.

The gas-containing liquid generator of FIG. 1 includes a gas-liquid mixing unit 11, a bubble nucleation unit 12, a foaming unit 13, and a clearing tank 14.

The gas-liquid mixing unit 11 mixes the gas 1 and the liquid 2 to generate the gas-containing liquid 3. An example of the gas 1 is oxygen. Reference numeral 1a represents a gas molecule (for example, an oxygen molecule). An example of the liquid 2 is water. Reference numeral 2a represents a liquid molecule (for example, a water molecule).

The bubble nucleation unit 12 processes the gas-containing liquid 3 supplied from the gas-liquid mixing unit 11 to generate a large number of bubble nuclei 3a in the gas-containing liquid 3. The bubble nucleus 3a is an aggregate in which gas molecules 1a are assembled apart from liquid molecules 2a. For example, the bubble nucleation unit 12 can generate a large number of bubble nuclei 3a in the gas-containing liquid 3 by turbulently flowing the gas-containing liquid 3.

The foaming unit 13 processes the gas-containing liquid 3 supplied from the bubble nucleation unit 12 to generate a large number of bubbles 3b in the gas-containing liquid 3. Bubbles 3b are generated by binding bubble nuclei 3a to each other. For example, the foaming unit 13 can generate a large number of bubbles 3b in the gas-containing liquid 3 by injecting the gas-containing liquid 3.

The gas-containing liquid 3 supplied from the foaming unit 13 is stored in the clearing tank 14. The gas-containing liquid generator of the present embodiment can supply the clearing tank 14 with nanobubble water containing nanobubbles having a particle size of 50 to 500 nm at a high concentration as the gas-containing liquid 3.

When the gas 1 and the liquid 2 are mixed outside the gas-containing liquid generating device to generate the gas-containing liquid 3, the gas-liquid mixing unit 11 may not be provided in the gas-containing liquid generating device. In this case, the bubble nucleation unit 12 generates the bubble nuclei 3a in the gas-containing liquid 3 introduced from the outside of the gas-containing liquid generator, and the foaming unit 13 puts the bubbles 3b in the gas-containing liquid 3. Generate. Further, when the bubble portion 13 directly discharges the gas-containing liquid 3 to the outside of the gas-containing liquid generating device, the clearing tank 14 may not be provided in the gas-containing liquid generating device. In the present embodiment, a specific example of the gas-containing liquid generating device will be described later, but this gas-containing liquid generating device does not include the gas-liquid mixing unit 11 and the clearing tank 14 (FIG. 3).

FIG. 2 is a diagram for explaining a process of forming a bubble nucleus 3a in the first embodiment.

FIG. 2A shows how the gas-containing liquid 3 generated by the gas-liquid mixing unit 11 is treated by the bubble nucleation unit 12.

Generally, the upper limit of the amount of gas 1 dissolved in liquid 2 under normal temperature and pressure is determined by the type of gas 1 or liquid 2. In order to dissolve the gas 1 in an amount exceeding this upper limit into the liquid 2, it is necessary to mechanically and forcibly dissolve the gas 1 into the liquid 2 by using a pump or the like. The gas-containing liquid 3 thus obtained is called a supersaturated gas-containing liquid.

It has been found that when a supersaturated gas-containing liquid is used as the gas-containing liquid 3 when the bubble nuclei 3a are generated in the gas-containing liquid 3, a large number of bubble nuclei 3a can be generated. Therefore, it is desirable that the gas-liquid mixing unit 11 of the present embodiment produces a supersaturated gas-containing liquid as the gas-containing liquid 3.

Further, it has been found that the bubble nuclei 3a are generated by applying pressure fluctuations and thermal fluctuations (temperature fluctuations) to the gas-containing liquid 3. Therefore, the bubble nucleation unit 12 of the present embodiment generates the bubble nuclei 3a by applying a pressure fluctuation to the gas-containing liquid 3. The structure of the bubble nucleation unit 12 capable of applying pressure fluctuation to the gas-containing liquid 3 will be described later.

FIG. 2A shows how pressure fluctuations and thermal fluctuations are applied to the gas-containing liquid 3 which is a supersaturated gas-containing liquid. When a pressure fluctuation is applied to the gas-containing liquid 3, a portion having a high pressure and a portion having a low pressure are generated in the gas-containing liquid 3. Further, when the gas-containing liquid 3 is subjected to thermal fluctuation, a portion having a high temperature and a portion having a low temperature are generated in the gas-containing liquid 3.

In this case, the gas molecules 1a gather in the low pressure portion and the high temperature portion. FIG. 2B shows how the gas molecules 1a gather at these portions.

As a result, as shown in FIG. 2C, a bubble nucleus 3a, which is an aggregate of gas molecules 1a, is generated. According to the simulation of the formation process of the bubble nuclei 3a, it has been found that the particle size of the bubble nuclei 3a is about 0.5 to 1.0 nm.

FIG. 3 is a cross-sectional view showing a specific example of the gas-containing liquid generator of the first embodiment.

FIG. 3 shows a syringe-type gas-containing liquid generator as a specific example of the gas-containing liquid generator. The gas-containing liquid generator of FIG. 3 includes a first injection tube 21, a first injection section 22, a first connection tube 23, a second injection tube 31, a second injection section 32, and a second connection tube 33. A connecting portion 41, a three-way valve 42, and an injection needle 43 are provided.

The gas-containing liquid generating apparatus of FIG. 3 has first and second connecting pipes 23 and 33 which are components corresponding to the bubble nucleation unit 12, and first and second components corresponding to the foaming unit 13. Although the injection units 32 and 33 are provided, the components corresponding to the gas-liquid mixing unit 11 and the clearing tank 14 are not provided. The first and second connecting pipes 23 and 33 are examples of the gas-containing liquid treatment section and examples of the first and second bubble-containing liquid treatment sections, respectively. The first and second injection units 22 and 32 are examples of the bubble generation unit and are examples of the first and second bubble generation units, respectively.

The first injection cylinder 21 includes an outer cylinder 21a and an inner cylinder 21b, and accommodates the gas-containing liquid 3 in the space between the outer cylinder 21a and the inner cylinder 21b. Similarly, the second injection cylinder 31 includes an outer cylinder 31a and an inner cylinder 31b, and accommodates the gas-containing liquid 3 in the space between the outer cylinder 31a and the inner cylinder 31b. In the present embodiment, the size of the first injection cylinder 21 is set to be larger than the size of the second injection cylinder 31, and the volume of the first injection cylinder 21 capable of accommodating the gas-liquid-containing liquid 3 is the second injection. The cylinder 31 is set to be larger than the volume that can accommodate the gas-liquid-containing liquid 3.

In the present embodiment, the gas-containing liquid 3 produced by mixing the gas 1 and the liquid 2 is prepared, and the gas-containing liquid 3 is introduced into the first or second injection cylinders 21 and 31. Examples of gas 1 are oxygen, carbon dioxide and the like. Examples of the liquid 2 are pure water, saline solution, and the like. Then, as will be described later, the gas-containing liquid generating apparatus of FIG. 3 generates bubble nuclei 3a in the gas-containing liquid 3 in the first and second connecting pipes 23 and 33, and the first and second injection units 22 and At 32, a bubble 3b is generated from the bubble nucleus 3a.

The connecting portion 41 includes a first port 41a for the first injection cylinder 21, a second port 41b for the second injection cylinder 31, and a third port 41c for the injection needle 43, and these ports 41a. It is provided with a flow path connecting ~ 41c. The first port 41a is connected to the first injection tube 21 via the first connecting tube 23 and the first injection unit 22. The second port 41b is connected to the second injection tube 31 via the second connecting tube 33 and the second injection unit 32. The third port 41c is connected to the injection needle 43.

The three-way valve 42 is provided in the connecting portion 41, and is provided between the first state in which the gas-containing liquid 3 flows between the first and second ports 41a and 41b and the gas between the first and third ports 41a and 41c. It changes to the second state in which the containing liquid 3 flows.

When the three-way valve 42 is switched to the first state, the gas-containing liquid 3 flows between the first injection cylinder 21 and the second injection cylinder 31, as shown by arrows a and b. In the first state of the present embodiment, the first and second ports 41a and 41b are opened, and the third port 41c is closed. Then, when the inner cylinder 21b of the first injection cylinder 21 is pushed with a finger, the gas-containing liquid 3 flows from the first injection cylinder 21 to the second injection cylinder 31. On the other hand, when the inner cylinder 31b of the second injection cylinder 31 is pushed with a finger, the gas-containing liquid 3 flows from the second injection cylinder 31 to the first injection cylinder 21.

When the three-way valve 42 is switched to the second state, the gas-containing liquid 3 flows between the first injection cylinder 21 and the injection needle 43, as shown by arrows c and d. In the second state of the present embodiment, the first and third ports 41a and 41c are opened and the second port 41b is closed. Then, when the inner cylinder 21b of the first injection cylinder 21 is pushed with a finger, the gas-containing liquid 3 flows from the first injection cylinder 21 to the injection needle 43, and the gas-containing liquid 3 is discharged from the injection needle 43.

The three-way valve 42 may be changeable to three or more states. For example, the three-way valve 42 is in a third state in which the second and third ports 41b and 41c are opened, the first port 41a is closed, and the gas-containing liquid 3 flows between the second and third ports 41b and 41c. It may change.

The injection needle 43 includes a needle base 43a and a needle tube 43b. The needle tube 43b is attached to the needle base 43a, and the needle base 43a is attached to the third port 41c. The injection needle 43 is used, for example, to inject the gas-containing liquid 3 into the human body.

When introducing the gas-containing liquid 3 into the gas-containing liquid generator, the inner cylinder 21b of the first injection cylinder 21 may be removed and the gas-containing liquid 3 may be introduced, or the second injection cylinder 31 may be introduced. The inner cylinder 31b may be removed to introduce the gas-containing liquid 3. Alternatively, the gas-containing liquid 3 may be introduced into the gas-containing liquid generator from the third port 41c as shown by the arrow d by pulling the inner cylinder 21b of the first injection cylinder 21 with a finger.

The first connecting tube 23 includes a flow path forming tube 51, a wire 52, and an obstacle member 53, and bubbles are contained in the gas-containing liquid 3 flowing between the first injection tube 21 and the first port 41a. Generate nucleus 3a. Similarly, the second connecting tube 33 includes a flow path forming tube 61, a wire 62, and an obstacle member 63, and the gas-containing liquid 3 flowing between the second injection tube 31 and the second port 41b. Bubble nuclei 3a are generated inside. The flow path forming tubes 51 and 61 are examples of flow path forming members. The wires 52 and 62 are examples of linear members.

As shown in FIG. 3, the flow path forming tube 51 has a flow path having a bellows structure, and carries the gas-containing liquid 3 along the flow path. The flow path of the flow path forming tube 51 alternately includes a plurality of abdominal portions 51a having an annular inner peripheral surface and a plurality of node portions 51b having an annular inner peripheral surface. The outermost diameter of each abdomen 51a is set to be larger than the innermost diameter of each node 51b. In the present embodiment, the inner peripheral surfaces of each abdomen 51a and each node 51b extend in a ring shape instead of a spiral shape.

This also applies to the flow path forming tube 61. The flow path of the flow path forming tube 61 alternately includes a plurality of abdominal portions 61a having an annular inner peripheral surface and a plurality of node portions 61b having an annular inner peripheral surface. In the present embodiment, the size of the flow path forming tube 51 is set to be larger than the size of the flow path forming tube 61, and the volume of the flow path forming tube 51 capable of accommodating the gas-liquid-containing liquid 3 is the flow path forming. The tube 61 is set to be larger than the volume that can accommodate the gas-liquid-containing liquid 3.

The flow path forming tubes 51 and 61 of the present embodiment are made of plastic and are configured to be bendable into various shapes (see FIG. 4). FIG. 4 is a cross-sectional view for explaining the usage of the gas-containing liquid generator of the first embodiment. In the present embodiment, the flow path forming tubes 51 and 61 are bent into various shapes to arrange the gas-containing liquid generator in a narrow space, and the gas-containing liquid 3 meanders to generate a large number of bubble nuclei 3a. It becomes possible.

Hereinafter, the description of the gas-containing liquid generator will be continued with reference to FIG. 3 again.

The wire 52 is provided along the flow path in the flow path forming tube 51. The wire 52 has a linear shape extending along the flow path, and is arranged at the center of the widthwise cross section (round slice cross section) of the flow path. The wire 52 of the present embodiment is made of a metal such as iron, but may be made of a non-metal such as plastic.

This also applies to the wire 62. The wire 62 is provided along the flow path in the flow path forming tube 61.

The obstacle member 53 is provided around the wire 52 in the flow path forming tube 51, and functions as an obstacle to the flow of the gas-containing liquid 3. The obstacle member 53 is fixed to the wire 52 and is arranged at the center of the widthwise cross section of the flow path. The obstacle member 53 of the present embodiment is made of a metal such as iron, but may be made of a non-metal such as plastic.

In the present embodiment, the shape and arrangement of the obstacle member 53 are set so that the flow of the gas-containing liquid 3 is sufficiently changed by the obstacle member 53. For example, the obstacle member 53 has a shape in which a plurality of abdomen 53a and a plurality of node 53b are alternately included along the flow path. Further, the obstacle member 53 has a mesh-like shape in which a plurality of metal wires are combined. Therefore, the gas-containing liquid 3 flows in the flow path in various modes such as flowing along the outer shape of the obstacle member 53, colliding with the obstacle member 53, and passing through the mesh of the obstacle member 53. It flows. An example of the obstacle member 53 is a wire mesh in which each abdomen 53a has 200 to 300 meshes.

This also applies to the obstacle member 63. The obstacle member 63 is provided around the wire 62 in the flow path forming tube 61, and has a shape including a plurality of abdominal portions 63a and a plurality of node portions 63b alternately along the flow path. In the present embodiment, the volume of each abdomen 53a of the obstacle member 53 is set to be larger than the volume of each abdomen 63a of the obstacle member 63.

The first injection portion 22 includes a narrowed portion 22a having a narrowed flow path, and is provided between the first injection tube 21 and the first connecting tube 23. Therefore, the first injection unit 22 can generate bubbles 3b in the gas-containing liquid 3 by injecting the gas-containing liquid 3 into the first injection tube 21 or the first connecting tube 23 by the narrowed portion 22a. it can. Specifically, when the gas-containing liquid 3 flows as shown by the arrow b, the gas-containing liquid 3 is injected into the first injection cylinder 21. Further, when the gas-containing liquid 3 flows as shown by the arrow a, the gas-containing liquid 3 is injected into the first connecting pipe 23.

Similarly, the second injection portion 32 includes a narrowed portion 32a having a narrowed flow path, and is provided between the second injection tube 31 and the second connecting tube 33. Therefore, the second injection unit 32 can generate bubbles 3b in the gas-containing liquid 3 by injecting the gas-containing liquid 3 into the second injection tube 31 or the second connecting tube 33 by the narrowed portion 32a. it can. Specifically, when the gas-containing liquid 3 flows as shown by the arrow a, the gas-containing liquid 3 is injected into the second injection cylinder 31. Further, when the gas-containing liquid 3 flows as shown by the arrow b, the gas-containing liquid 3 is injected into the second connecting pipe 33.

Next, the operation of the gas-containing liquid generator will be described with reference to FIG.

First, a gas-containing liquid 3 produced by mixing gas 1 and liquid 2 is prepared, and the gas-containing liquid 3 is introduced into the first or second injection cylinders 21 and 31. Next, the three-way valve 42 is switched to the first state. Next, the inner cylinder 21b of the first injection cylinder 21 and the inner cylinder 31b of the second injection cylinder 31 are alternately pressed with a finger. As a result, the gas-containing liquid 3 repeatedly reciprocates between the first injection cylinder 21 and the second injection cylinder 31. At this time, the first and second connecting pipes 23 and 33 generate bubble nuclei 3a in the gas-containing liquid 3, and the first and second injection portions 22 and 32 generate bubbles 3b from the bubble nuclei 3a.

The concentration of the bubble nuclei 3a and the bubbles 3b in the gas-containing liquid 3 increases as the number of round trips of the gas-containing liquid 3 increases. Therefore, when it is desired to generate the gas-containing liquid 3 containing fine bubbles 3b at a high concentration, it is desirable to increase the number of reciprocations of the gas-containing liquid 3.

In the present embodiment, the sizes of the first injection tube 21, the first injection section 22, and the first connecting tube 23 are larger than the sizes of the second injection tube 31, the second injection section 32, and the second connecting tube 33, respectively. It is set large. Further, the volume of each abdomen 53a of the obstacle member 53 is set to be larger than the volume of each abdomen 63a of the obstacle member 63. As a result, the flow velocity and reactivity of the gas-containing liquid 3 between the first injection cylinder 21 and the first port 41a can be adjusted, and the flow velocity and reactivity of the gas-containing liquid 3 between the second injection cylinder 31 and the second port 41b. And reactivity can be different. Therefore, according to the present embodiment, it is possible to further increase the concentration of the bubble nuclei 3a and the bubble 3b by applying pressure fluctuation or the like to the gas-containing liquid 3 due to the difference in the flow velocity or the reactivity. Further, in the present embodiment, the traveling direction of the gas-containing liquid 3 is bent at a right angle at the connecting portion 41, which also acts as a pressure fluctuation to the gas-containing liquid 3.

After that, when the desired gas-containing liquid 3 is generated, the gas-containing liquid 3 is moved to the first injection cylinder 21 and the three-way valve 42 is switched to the second state. Next, after the injection needle is pierced into the injection target, the inner cylinder 21b of the first injection cylinder 21 is pressed with a finger. Thereby, the desired gas-containing liquid 3 can be injected into the injection target.

In the present embodiment, the gas 1 and the liquid 2 may be introduced into the first or second injection cylinders 21 and 31 instead of the gas-containing liquid 3. In this case, the gas 1 and the liquid 2 are separated by repeatedly reciprocating the gas 1 and the liquid 2 between the first injection cylinder 21 and the second injection cylinder 31 or shaking the gas-containing liquid generator by hand. Mix to produce gas-containing liquid 3. However, when it is desired to use the gas-containing liquid 3 having desired characteristics, it is desirable to use the gas-containing liquid 3 prepared outside the gas-containing liquid generator as described above.

FIG. 5 is a cross-sectional view showing the configuration of the first connecting pipe 23 of the first embodiment. The description of FIG. 5 also applies to the second connecting pipe 33 of the present embodiment.

FIG. 5 shows how the gas-containing liquid 3 flows from the first port 41a to the first injection unit 22. In the present embodiment, the shape and arrangement of the obstacle member 53 are set so that the flow of the gas-containing liquid 3 is sufficiently changed by the obstacle member 53. For example, the obstacle member 53 has a shape in which a plurality of abdomen 53a and a plurality of node 53b are alternately included along a flow path, and has a mesh-like shape. Therefore, as shown by an arrow in FIG. 5, the gas-containing liquid 3 flows along the outer shape of the obstacle member 53, collides with the obstacle member 53, passes through the mesh of the obstacle member 53, and the like. , Flows in the flow path in various ways.

In addition to the flow path forming tube 51, the wire 52, and the obstacle member 53, the first connecting pipe 23 includes a first fixing portion 54, a first obstruction plate 55, a second fixing portion 56, and a second obstruction plate. It is equipped with 57.

The first fixing portion 54 is inserted into the first injection portion 22, and is used to fix one end of the wire 52 (the end on the side of the first injection tube 21). The second fixing portion 56 is inserted into the connecting portion 41 and is used to fix the other end portion (end portion on the first port 41a side) of the wire 52. In the present embodiment, the positions of both ends of the wire 52 are fixed by the first and second fixing portions 54 and 56.

The first baffle plate 55 is provided in the vicinity of the first fixing portion 54 in the first injection portion 22, and has a function of stirring the gas-containing liquid 3 in the first injection portion 22. The second baffle plate 57 is provided in the vicinity of the second fixing portion 56 in the connecting portion 41, and has a function of stirring the gas-containing liquid 3 in the connecting portion 41. In the present embodiment, the gas-containing liquid 3 is agitated by the first and second baffle plates 55 and 57, so that a pressure fluctuation is applied to the gas-containing liquid 3 and bubble nuclei 3a are generated in the gas-containing liquid 3. It will be easier.

As described above, in the first connecting pipe 23 of the present embodiment, the gas-containing liquid 3 flows in the flow path-shaped tube 51 having the flow path of the bellows structure, and the flow of the gas-containing liquid 3 is the obstacle member 53. Affected by. Therefore, the flow of the gas-containing liquid 3 is affected by the first connecting pipe 23 both in the central portion and the peripheral portion of the flow path.

For example, the gas-containing liquid 3 at the center of the flow path flows along the outer shape of the obstacle member 53, collides with the obstacle member 53, or passes through the mesh of the obstacle member 53. Further, the gas-containing liquid 3 in the peripheral portion of the flow path enters the groove of the abdomen 51a of the flow path-shaped tube 51 or along the groove of the abdomen 51a of the flow path-shaped tube 51, as shown by an arrow in FIG. It goes around in a ring. At this time, since the groove is not spiral but annular, the gas-containing liquid 3 is difficult to flow from the connecting portion 41 to the first injection portion 22, and the flow of the gas-containing liquid 3 can be greatly changed by the groove.

Therefore, according to the present embodiment, the flow of the gas-containing liquid 3 can be changed by the flow path-shaped tube 51 and the obstacle member 53, whereby a large number of bubble nuclei 3a are generated in the gas-containing liquid 3. Can be done. Specifically, according to the present embodiment, the gas-containing liquid 3 is turbulent by causing a vortex flow in the gas-containing liquid 3 by the flow path-shaped tube 51 and the obstacle member 53, so that a large number of the gas-containing liquid 3 is contained. Bubble nuclei 3a can be generated. When the gas-containing liquid 3 passes through a normal tube, the gas-containing liquid 3 is generally laminarized, but according to the first connecting pipe 23 of the present embodiment, the gas-containing liquid 3 is turbulently flowed. Can be done.

Further, in the present embodiment, the bubble nucleation mechanism can be configured by a simple structure of the flow path-shaped tube 51 and the obstacle member 53, and further, the flow path-shaped tube 51 can be bent. This makes it easy to use the gas-containing liquid generator in various situations, arrange the gas-containing liquid generator in a narrow space, and reduce the manufacturing cost and energy consumption of the gas-containing liquid generator. Become.

This is useful when the gas-containing liquid generator is applied not only to the industrial field and the general consumption field but also to the medical field and the agricultural field. The reason is that when applying the gas-containing liquid generator to the medical and agricultural fields, it is necessary to carry the device to various places, use the device in situations where maintenance and power supply are difficult, and in some cases, dispose of the device. This is because it is required to do so.

Therefore, in the present embodiment, a gas-containing liquid generator that can be used as a syringe is realized with a simple structure. Generally, a syringe is required to be usable without using electric power and to bend a connecting tube such as a tube according to the human body at the time of injection. On the other hand, the gas-containing liquid generator of the present embodiment can be operated by the force of a finger instead of electric power, and the connecting pipe 23 can be bent. As described above, according to the present embodiment, it is possible to realize a gas-containing liquid generator suitable for use as a syringe for the gas-containing liquid 3.

FIG. 6 is a cross-sectional view for explaining the dimensions of the first connecting pipe 23 of the first embodiment. The description of FIG. 6 also applies to the second connecting pipe 33 of the present embodiment.

Reference numeral A indicates the diameter of the inner peripheral surface of the first port 41a. Reference numeral B indicates the dimension (thickness) of each abdomen 51a of the flow path forming tube 51 in the length direction of the flow path. Reference numeral C indicates the dimension (thickness) of each node 51b of the flow path forming tube 51 in the length direction of the flow path.

In the present embodiment, the thickness B of each abdomen 51a and the thickness C of each node 51b are set to the same thickness (B = C). Further, as shown in FIG. 6, the diameter A of the inner peripheral surface of the first port 41a is set to be substantially the same as the innermost diameter of each node 51b, and is set smaller than the outermost diameter of each abdomen 51a. Has been done. Further, the thicknesses B and C of each abdomen 51a and each node 51b are set to 1/4 of the diameter A of the inner peripheral surface of the first port 41a (B = C = A / 4). The diameter A of the inner peripheral surface of the first port 41a is, for example, about several mm, and the length of the flow path forming tube 51 is, for example, about 10 cm.

Reference numeral D indicates the dimension of each abdomen 53a of the obstacle member 53 in the length direction of the flow path. Reference numeral E indicates the dimension of each abdomen 53a of the obstacle member 53 in the width direction of the flow path. Hereinafter, the dimension D is referred to as the length of each abdomen 53a, and the dimension E is referred to as the diameter of each abdomen 53a.

In the present embodiment, the length D of each abdomen 53a is set to be longer than the diameter E of each abdomen 53a (D> E). Specifically, the length D of each abdomen 53a is set to be twice the diameter E of each abdomen 53a (D = 2E). Further, the diameter E of each abdomen 53a is set shorter than the diameter A of the inner peripheral surface of the first port 41a (E <A). Specifically, the diameter E of each abdomen 53a is set to 2/3 of the diameter A of the inner peripheral surface of the first port 41a (E = 2A / 3). As a result, the obstacle member 53 can be accommodated in the flow path forming tube 51.

Further, in the present embodiment, the length D of each abdomen 53a of the obstacle member 53 is set to be longer than the thickness B of each abdomen 51a of the flow path forming tube 51 (D> B). Specifically, the length D of each abdomen 53a of the obstacle member 53 is set to 16/3 of the thickness B of each abdomen 51a of the flow path forming tube 51 (D = 16B / 3).

The relationship between these dimensions A to E is only an example, and other relationships may be applied to these dimensions A to E. Further, the abdomen 53a of the obstacle member 53 of the present embodiment has the same dimensions (length D, diameter E), but may have different dimensions. Further, although the first connecting pipe 23 of the present embodiment includes one obstacle member 53, it may include a plurality of obstacle members 53. Further, the number of the abdomen 51a and the abdomen 53a shown in FIG. 6 is drawn to be smaller than the number of the general abdomen 51a and the abdomen 53a in the case of actually manufacturing the gas-containing liquid generator for convenience of drawing. Please note.

FIG. 7 is a cross-sectional view showing a modified example of the first connecting pipe 23 of the first embodiment. The description of FIG. 7 also applies to the second connecting pipe 33 of the present embodiment.

The first connecting pipe 23 of this modified example includes a spring 58. The spring 58 is provided around the wire 52 in the flow path forming tube 51. The flow path forming tube 51 of this modification is configured to be bendable, and is configured so that the drag force of the spring 58 acts on the bending. Therefore, according to this modification, it is possible to prevent excessive bending of the flow path forming tube 51 and to apply pressure fluctuation by the spring 58 to the gas-containing liquid 3.

Further, according to this modification, the flow path-shaped tube 51 and the obstacle member 53 can cause an annular action to act on the gas-containing liquid 3, and the spring 58 can cause a spiral action to act on the gas-containing liquid 3. it can. Therefore, according to this modification, it is possible to realize a more complicated flow of the gas-containing liquid 3.

FIG. 8 is a cross-sectional view showing a modified example of the first injection unit 22 of the first embodiment. The description of FIG. 8 also applies to the second injection unit 32 of the present embodiment.

The first injection portion 22 of this modified example includes a narrowed portion 22a in which the flow path is narrowed, a first expansion portion 22b in which the flow path gradually widens from the narrowed portion 22a to the first connecting pipe 23, and a narrowed portion 22a. It is provided with a second expansion portion 22c in which the flow path gradually widens from the first injection tube 21 to the first injection tube 21. Therefore, the first injection unit 22 of this modification functions as a Venturi tube that generates bubbles 3b by injecting the gas-containing liquid 3.

When the gas-containing liquid 3 is injected into the first injection cylinder 21 from the first injection unit 22, the inner cylinder 21b exists in the traveling direction of the gas-containing liquid 3 (see FIG. 3), so that the gas-containing liquid 3 is swirled. Occurs. As a result, the bubble nucleus 3a can be generated even in the first injection tube 21.

As described above, the gas-containing liquid generator of the present embodiment includes the first and second injection tubes 21 and 31, the connecting portion 41, and the three-way valve 42, and includes the first and second injection tubes 21 and 31. The first and second connecting pipes 23 and 33 and the first and second injection portions 22 and 32 are provided between the connecting portion 41 and the connecting portion 41. As a result, a syringe-type gas-containing liquid generator has been realized.

Then, when the gas-containing liquid 3 flows through the first and second connecting pipes 23 and 33 of the present embodiment, the flow of the gas-containing liquid 3 is from the obstacle members 53 and 63 at the central portion of the flow path. Affected, the peripheral portion of the flow path is affected by the bellows structure of the flow path shaped tubes 51 and 61. Therefore, according to the present embodiment, it is possible to generate a large number of bubble nuclei 3a in the gas-containing liquid 3 by the flow path shaped tubes 51, 61 and the obstacle members 53, 63, whereby fine bubbles 3b It becomes possible to generate a gas-containing liquid 3 containing a high concentration of.

Further, according to the present embodiment, a syringe-type gas-containing liquid generator can be realized with a simple structure. The gas-containing liquid generator of the present embodiment can be operated by the force of a finger instead of electric power like a general syringe, and can be used without mechanical operation. Therefore, according to the present embodiment, it is possible to realize a gas-containing liquid generating device that can be easily operated by a person who is accustomed to operating a syringe, such as a doctor or a nurse.

(Second Embodiment)
FIG. 9 is a schematic view showing the configuration of the gas-containing liquid generator of the second embodiment.

The gas-containing liquid generating device of the present embodiment alternately includes a plurality of first connecting pipes 23 and a plurality of first injection portions 22 between the first injection cylinder 21 and the connecting portion 41, and specifically. Alternately includes two first connecting pipes 23 and three first injection portions 22. Further, the gas-containing liquid generating device of the present embodiment alternately includes a plurality of second connecting pipes 33 and a plurality of second injection portions 32 between the second injection cylinder 31 and the connecting portion 41. Specifically, the two second connecting pipes 33 and the three second injection portions 32 are alternately provided. The configurations of the first and second connecting pipes 23 and 33 and the first and second injection units 22 and 32 of the present embodiment are the same as those of the first embodiment.

According to the present embodiment, it is possible to realize gas-containing liquid generating devices having various designs by the connecting pipes 23 and 33 and the injection units 22 and 32.

Although examples of specific embodiments of the present invention have been described above with reference to the first and second embodiments of the present invention, the present invention is not limited to these embodiments. These embodiments can be implemented with various modifications without departing from the gist of the present invention. The scope of the present invention also includes forms with such modifications.

1: Gas, 1a: Gas molecule, 2: Liquid, 2a: Liquid molecule,
3: Gas-containing liquid, 3a: bubble nuclei, 3b: bubbles,
11: Gas-liquid mixing part, 12: Bubble nucleation part, 13: Foaming part, 14: Clearing tank,
21: 1st injection cylinder, 21a: outer cylinder, 21b: inner cylinder, 22: 1st injection part,
22a: stenosis, 22b: first expansion, 22c: second expansion, 23: first connection tube,
31: 2nd injection cylinder, 31a: outer cylinder, 31b: inner cylinder, 32: second injection part,
32a: stenosis, 33: second connecting tube,
41: Connecting part, 41a: 1st port, 41b: 2nd port, 41c: 3rd port,
42: Three-way valve, 43: Injection needle, 43a: Needle base, 43b: Needle tube,
51: Flow path forming tube, 51a: Abdomen, 51b: Nodal part,
52: Wire, 53: Obstacle member, 53a: Abdomen, 53b: Nodal part,
54: 1st fixed part, 55: 1st baffle plate,
56: 2nd fixing part, 57: 2nd baffle plate, 58: spring,
61: Flow path forming tube, 61a: Abdomen, 61b: Nodal part,
62: Wire, 63: Obstacle member, 63a: Abdomen, 63b: Nodal part,
64: 1st fixed part, 65: 1st baffle plate,
66: 2nd fixed part, 67: 2nd baffle plate

Claims (15)

The first and second injection tubes that house the gas-containing liquid,
A connecting portion including a first port for the first syringe barrel, a second port for the second syringe barrel, and a third port for an injection needle.
A gas-containing liquid treatment unit that treats the gas-containing liquid flowing between the first injection cylinder and the first port, or between the second injection cylinder and the second port.
A bubble generating unit that generates bubbles in the gas-containing liquid flowing between the first injection tube and the first port, or between the second injection tube and the second port.
A valve that changes to a first state in which the gas-containing liquid flows between the first and second ports and a second state in which the gas-containing liquid flows between the first and third ports is provided.
The gas-containing liquid treatment unit is
Forming a flow path having a flow path including a plurality of abdomen having an annular inner peripheral surface and a plurality of nodes having an annular inner peripheral surface alternately, and carrying the gas-containing liquid along the flow path. Members and
A linear member provided along the flow path in the flow path forming member and being a wire,
An obstacle that is provided around the linear member in the flow path forming member, includes a plurality of abdomen and a plurality of nodes alternately along the flow path, and functions as an obstacle to the flow of the gas-containing liquid. Material members and
A gas-containing liquid generator comprising. The dimensions of the abdomen of the obstacle member in a longitudinal direction of the channel is greater than the dimension of the abdomen of the obstacle member in the width direction of the flow path, the gas-containing liquid generating device according to claim 1 .. The gas according to claim 1 or 2 , wherein the dimension of each abdomen of the obstacle member in the length direction of the flow path is longer than the dimension of each abdomen of the flow path forming member in the length direction of the flow path. Containing liquid generator. The gas-containing liquid generator according to any one of claims 1 to 3 , wherein the obstacle member has a mesh-like shape. The gas-containing liquid generating apparatus according to any one of claims 1 to 4 , wherein the flow path forming member is configured to be bendable. The gas according to any one of claims 1 to 5 , wherein the volume of the first injection cylinder capable of accommodating the gas- containing liquid is larger than the volume of the second injection cylinder capable of accommodating the gas-containing liquid. Containing liquid generator. The bubble generation unit is provided between the first injection cylinder and the first port and between the first injection cylinder and the gas-containing liquid treatment unit, or the second injection cylinder and the first. The gas-containing liquid generating apparatus according to any one of claims 1 to 6 , which is provided between the second injection cylinder and the gas-containing liquid processing unit between the two ports. The gas-containing liquid generating apparatus according to any one of claims 1 to 7 , wherein the bubble generating unit functions as a Venturi tube for injecting the gas-containing liquid. A first fixing portion for fixing the end portion of the linear member on the side of the first or second injection tube, and a first fixing portion.
A second fixing portion for fixing the end portion of the linear member on the first or second port side, and
The gas-containing liquid generator according to any one of claims 1 to 8. A first baffle plate provided at the end of the linear member on the side of the first or second injection tube and agitating the gas-containing liquid, and
A second baffle plate provided at the end of the linear member on the side of the first or second port and agitating the gas-containing liquid, and
9. The gas-containing liquid generator according to claim 9. The gas-containing liquid generating apparatus according to any one of claims 1 to 10 , further comprising a spring provided around the linear member in the flow path forming member. As the gas-containing liquid treatment unit,
A first gas-containing liquid treatment unit provided with the flow path forming member, the linear member, and the obstacle member and treating the gas-containing liquid flowing between the first injection cylinder and the first port.
A second gas-containing liquid treatment unit provided with the flow path forming member, the linear member, and the obstacle member and treating the gas-containing liquid flowing between the second injection cylinder and the second port.
The gas-containing liquid generating apparatus according to claim 1. The volume of the flow path forming member constituting the first gas-containing liquid treatment unit that can accommodate the gas-containing liquid is such that the flow path forming member constituting the second gas-containing liquid treatment unit holds the gas-containing liquid. The gas-containing liquid generator according to claim 12 , which is larger than the volume that can be accommodated. The obstacle member constituting the first gas-containing liquid treatment unit alternately includes a plurality of abdomen and a plurality of nodes along the flow path of the first gas-containing liquid treatment unit.
The obstacle member constituting the second gas-containing liquid treatment unit alternately includes a plurality of abdomen and a plurality of nodes along the flow path of the second gas-containing liquid treatment unit.
The volume of each abdomen of the obstacle member constituting the first gas-containing liquid treatment unit is larger than the volume of each abdomen of the obstacle member constituting the second gas-containing liquid treatment unit, claim 12 or 13. The gas-containing liquid generating apparatus according to 13. As the bubble generator
A first bubble generation unit that generates the bubbles in the gas-containing liquid flowing between the first injection tube and the first port, and a first bubble generation unit.
A second bubble generating unit that generates the bubbles in the gas-containing liquid flowing between the second injection tube and the second port,
The gas-containing liquid generating apparatus according to claim 1.

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