JP2017148775A - Gas-containing liquid generation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve uniformity of bubbles in a gas-containing liquid.SOLUTION: A gas-containing liquid generation device comprises a gas-containing liquid generation unit (21) for generating a gas-containing liquid by mixing gas and liquid, a booster unit (22) having first to Nth (N is an integer of 2 or greater) booster stages to increase pressure of the gas-containing liquid that passes in order through the first to the Nth booster stages, and a bubbling unit (23) for generating bubbles in the gas-containing liquid supplied from the booster unit. Each of the booster stages comprise a storage part (such as 51) having an inlet and an outlet of the gas-containing liquid and storing the gas-containing liquid, an opening/closing member (such as 52) provided in the storage part and pressed to the downstream side of the gas-containing liquid by a flow of the gas-containing liquid, an elastic member (such as 53) for pressing the opening/closing member to the upstream side of the gas-containing liquid by elastic force and a support part (such as 54) provided in the storage part and supporting the opening/closing member against pressing by the elastic member by making contact with the opening/closing member. The gas-containing liquid flows to the outlet from the inlet via a clearance between the opening/closing member and the support part.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a gas-containing liquid generating apparatus, and is applied, for example, for generating nanobubble water.

  In recent years, microbubble water containing microbubbles and nanobubble water containing nanobubbles have attracted attention in various technical fields. Although there is no clear definition of microbubbles or nanobubbles, microbubbles generally 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 2011-218308 A Japanese Patent Laying-Open No. 2015-77566

  In general, bubbles such as microbubbles and nanobubbles are generated by mixing a gas and a liquid to generate a gas-containing liquid and then injecting the gas-containing liquid. Recent research has shown that bubbles are generated by combining bubble nuclei after bubble nuclei are generated in a gas-containing liquid. A bubble nucleus is an aggregate in which gas molecules before becoming bubbles are 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 applications, the bubbles are desirably fine, and the gas-containing liquid desirably contains fine bubbles at a high concentration. The reason is that fine bubbles persist in the gas-containing liquid for a long time. As described above, a gas-containing liquid containing fine bubbles at a high concentration can be generated from a gas-containing liquid containing bubble nuclei at a high concentration. Therefore, it is required to realize a technique capable of generating a gas-containing liquid containing fine bubbles at a high concentration by generating a large number of bubble nuclei in the gas-containing liquid.

  In addition, the gas-containing liquid and bubbles are generally generated by using rotational force or centrifugal force of a pump impeller or the like. However, in this case, since the gas tends to gather at the rotation center and the liquid easily leaves the rotation center, the uniformity of bubble nuclei and bubble distribution in the gas-containing liquid is lowered. In this case, a large space is required to place a rotating body such as an impeller. Therefore, it is difficult to provide a mechanism for applying pressure fluctuation or heat fluctuation to the gas-containing liquid, and bubble nuclei are generated efficiently. Difficult to do.

  Then, this invention makes it a subject to provide the gas containing liquid production | generation apparatus which can improve the uniformity of the bubble in a gas containing liquid.

  The gas-containing liquid production | generation apparatus of 1 aspect of this invention mixes gas and a liquid, the gas containing liquid production | generation part which produces | generates a gas containing liquid, and 1st to Nth (N is an integer greater than or equal to 2) pressure increase A pressure increasing part that increases the pressure of the gas-containing liquid that sequentially passes through the first to Nth pressure increasing stages, and bubbles are introduced into the gas-containing liquid supplied from the pressure increasing part. Each of the first to Nth pressure-increasing stages has an inlet and an outlet for the gas-containing liquid, and stores a gas-containing liquid in the container. An opening / closing member provided to be pressed to the downstream side of the gas-containing liquid by the flow of the gas-containing liquid; an elastic member for pressing the opening / closing member to the upstream side of the gas-containing liquid by an elastic force; Provided to contact the opening / closing member to support the opening / closing member against pressing by the elastic member. And a support portion for the gas-containing liquid flows to the outlet from the inlet through the gap between the closing member and the support portion.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the gas containing liquid production | generation apparatus which can improve the uniformity of the bubble in a gas containing liquid.

It is the schematic which shows the structure of the gas containing liquid production | generation apparatus of 1st Embodiment. It is a figure for demonstrating the production | generation process of the bubble nucleus in 1st Embodiment. It is sectional drawing which shows the structure of the gas containing liquid production | generation apparatus of 1st Embodiment. It is sectional drawing which shows the structure of the gas containing liquid production | generation apparatus of the modification of 1st Embodiment. It is another sectional drawing which shows the structure of the gas containing liquid production | generation apparatus of the modification of 1st Embodiment. It is sectional drawing which shows the usage method of the gas containing liquid production | generation apparatus of 2nd Embodiment. It is another sectional view showing the usage method of the gas content liquid generating device of a 2nd embodiment.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a schematic diagram illustrating the configuration of the gas-containing liquid generation apparatus according to the first embodiment.

  The gas-containing liquid generation apparatus in FIG. 1 includes a gas-liquid mixing unit 11, a bubble nucleus generation unit 12, a bubble generation unit 13, and a purification 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. The code | symbol 1a represents a gas molecule (for example, oxygen molecule). An example of the liquid 2 is water. Reference numeral 2a represents a liquid molecule (for example, a water molecule).

  The bubble nucleus generating unit 12 processes the gas-containing liquid 3 supplied from the gas-liquid mixing unit 11 to generate a large number of bubble nuclei 3 a in the gas-containing liquid 3. The bubble nucleus 3a is an aggregate in which the gas molecules 1a are gathered away from the liquid molecules 2a. For example, the bubble nucleus generation unit 12 can generate a large number of bubble nuclei 3 a in the gas-containing liquid 3 by passing the gas-containing liquid 3 through a narrow gap.

  The bubble generation unit 13 processes the gas-containing liquid 3 supplied from the bubble nucleus generation unit 12 to generate a large number of bubbles 3 b in the gas-containing liquid 3. The bubble 3b is generated by combining the bubble nuclei 3a. For example, the bubble generation unit 13 can generate a large number of bubbles 3b in the gas-containing liquid 3 by passing the gas-containing liquid 3 through a narrow gap.

  The gas-containing liquid 3 supplied from the bubble generating unit 13 is stored in the cleansing tank 14. The gas-containing liquid production | generation apparatus of this embodiment can supply the nanobubble water which contains the nanobubble with a particle size of 50-500 nm to the cleansing tank 14 as the gas-containing liquid 3 in high concentration.

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

  FIG. 2A shows a state in which the gas-containing liquid 3 generated by the gas-liquid mixing unit 11 is processed by the bubble nucleus generation unit 12.

  In general, the upper limit of the amount of the gas 1 dissolved in the liquid 2 under normal temperature and pressure conditions is determined by the type of the gas 1 and the 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 using a pump or the like. The gas-containing liquid 3 thus obtained is referred to as a supersaturated gas-containing liquid.

  When generating bubble nuclei 3a in the gas-containing liquid 3, it has been found that if a supersaturated gas-containing liquid is used as the gas-containing liquid 3, a large number of bubble nuclei 3a can be generated. Therefore, the gas-liquid mixing unit 11 of the present embodiment generates a supersaturated gas-containing liquid as the gas-containing liquid 3. The structure of the gas-liquid mixing unit 11 capable of generating a supersaturated gas-containing liquid will be described later.

  Further, it has been found that the bubble nucleus 3a is generated by applying pressure fluctuation or heat fluctuation (temperature fluctuation) to the gas-containing liquid 3. Therefore, the bubble nucleus generation unit 12 of the present embodiment generates bubble nuclei 3a by applying pressure fluctuations to the gas-containing liquid 3. The structure of the bubble nucleus generation unit 12 that can apply pressure fluctuation to the gas-containing liquid 3 will be described later.

  FIG. 2A shows a state in which pressure fluctuation or heat fluctuation is applied to the gas-containing liquid 3 which is a supersaturated gas-containing liquid. When 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 heat fluctuation is applied to the gas-containing liquid 3, 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 at a low pressure portion or a high temperature portion. FIG. 2 (b) shows how the gas molecules 1a gather at these portions.

  As a result, as shown in FIG. 2 (c), bubble nuclei 3a that are aggregates of gas molecules 1a are generated. According to the simulation of the generation process of the bubble nucleus 3a, it is found that the particle size of the bubble nucleus 3a is about 0.5 to 1.0 nm.

  FIG. 3 is a cross-sectional view illustrating a configuration of the gas-containing liquid generation apparatus according to the first embodiment.

  The configuration of FIG. 3 is a more specific version of the configuration of FIG. The gas-containing liquid production | generation apparatus of this embodiment is provided with the gas-containing liquid production | generation part 21, the pressure increase part 22, and the foaming part 23, as shown in FIG.

  The gas-containing liquid generation unit 21 mixes the gas 1 and the liquid 2 to generate the gas-containing liquid 3, and generates bubble nuclei 3 a in the gas-containing liquid 3. The gas-containing liquid generation unit 21 corresponds to the gas-liquid mixing unit 11 and the bubble nucleus generation unit 12.

  The pressure increasing unit 22 includes first to third pressure increasing stages 22a to 22c, and increases the pressure of the gas-containing liquid 3 that sequentially passes through the first to third pressure increasing stages 22a to 22c. Specifically, the pressure of the gas-containing liquid 3 discharged from the first pressure-increasing stage 22a is higher than the pressure of the gas-containing liquid 3 discharged from the gas-containing liquid generation unit 21. The pressure of the gas-containing liquid 3 discharged from the second pressure-increasing stage 22b is higher than the pressure of the gas-containing liquid 3 discharged from the first pressure-increasing stage 22a. The pressure of the gas-containing liquid 3 discharged from the third pressure-increasing stage 22c is higher than the pressure of the gas-containing liquid 3 discharged from the second pressure-increasing stage 22b. The first to third pressure boosting stages 22a to 22c are examples of the first to Nth pressure boosting stages (N is an integer of 2 or more). The value of N may be other than 3.

  The foaming unit 23 generates bubbles 3 b in the gas-containing liquid 3 supplied from the pressure increasing unit 22. The bubble 3b is generated by combining the bubble nuclei 3a. The foaming unit 23 corresponds to the bubble generating unit 13.

(1) Gas-containing liquid generator 21
The gas-containing liquid generation unit 21 includes a liquid inlet 31, a gas inlet 32, a first housing 33, an electromagnet coil 34, a power cord 35, an actuator 36, a first spring 37, and a second The housing portion 38, the first shut valve 39, the second spring 40, the third housing portion 41, the second shut valve 42, and the third spring 43 are provided. The 1st, 2nd, and 3rd accommodating parts 33, 38, and 41 are examples of an accommodating part. The first, second, and third springs 37, 40, 43 are examples of first, second, and third elastic members, respectively. The first and second shut valves 39 and 42 are examples of first and second opening / closing members, respectively. The actuator 36 is an example of a moving member. The electromagnet coil 34 is an example of a coil.

  The liquid inlet portion 31 is connected to the second storage portion 38 and is used for introducing the liquid 2 into the gas-containing liquid generation portion 21. The gas inlet portion 32 is connected to the liquid inlet portion 31 and is used for introducing the gas 1 into the gas-containing liquid generating portion 21. The gas 1 and the liquid 2 are sequentially introduced into the second storage unit 38, the first storage unit 33, and the third storage unit 41, and in the first, second, and third storage units 33, 38, and 41. The gas-containing liquid 3 is mixed.

  The liquid inlet 31 is provided between the first portion 31a having the first inner diameter, the second portion 31b having the second inner diameter larger than the first inner diameter, and the first portion 31a and the second portion 31b. And a step portion 31c. The step portion 31 c functions as a support portion that supports the first shut valve 39 against pressing by the second spring 40 as will be described later.

  The first storage portion 33 has a cylindrical shape and is used for storing the gas-containing liquid 3. The electromagnet coil 34 is attached around the first housing portion 33. The power cord 35 is used to supply power to the electromagnet coil 34. The operating element 36 is disposed in the first accommodating portion 33 and includes first and second portions 36a and 36b having a cylindrical shape. The inside of the cylindrical shape of the first and second portions 36 a and 36 b functions as a flow path for the gas-containing liquid 3. The second portion 36 b functions as a support portion that supports the second shut valve 42 against pressing by the third spring 43 as will be described later. The first spring 37 is disposed in the first housing portion 33 and has a front end wound around the second housing portion 38 and a rear end in contact with the front end of the actuator 36.

  In addition, although the front end of the 1st spring 37 of this embodiment is being fixed to the 2nd accommodating part 38 (or 1st accommodating part 33), it is being fixed to the 2nd accommodating part 38 (or 1st accommodating part 33). It does not have to be. Similarly, the rear end of the first spring 37 of the present embodiment is fixed to the actuator 36, but may not be fixed to the actuator 36.

  The second storage portion 38 has a cylindrical shape, is provided upstream of the first storage portion 33, and is used for storing the gas-containing liquid 3. The first shut valve 39 has a spherical shape and is disposed in the second accommodating portion 38. The second spring 40 is disposed in the second accommodating portion 38 and has a front end that contacts the first shut valve 39 and a rear end that contacts the bottom surface of the second accommodating portion 38. The second spring 40 is disposed so as to be surrounded by the first spring 37.

  Note that the front end of the second spring 40 of this embodiment is fixed to the first shut valve 39, but may not be fixed to the first shut valve 39. Similarly, the rear end of the second spring 40 of the present embodiment is fixed to the second storage portion 38, but may not be fixed to the second storage portion 38.

  The third accommodating part 41 has a cylindrical shape, is provided downstream of the first accommodating part 33, and is used for accommodating the gas-containing liquid 3. The 3rd accommodating part 41 has the 1st part 41a which has a 1st internal diameter, and the 2nd part 41b which has a 2nd internal diameter smaller than a 1st internal diameter. The second portion 36 b of the actuator 36 is inserted into the first portion 41 a of the third housing portion 41. The second shut valve 42 has a spherical shape and is disposed in the third accommodating portion 41. The third spring 43 is disposed in the third accommodating portion 41 and has a front end that contacts the second shut valve 42 and a rear end that contacts the second portion 41 b of the third accommodating portion 41.

  In addition, although the front end of the third spring 43 of the present embodiment is fixed to the second shut valve 42, it may not be fixed to the second shut valve 42. Similarly, the rear end of the third spring 43 according to the present embodiment is fixed to the third housing portion 41, but may not be fixed to the third housing portion 41.

[First shut valve 39]
The first shut valve 39 is accommodated in the second accommodating portion 38 so as to be movable in the second accommodating portion 38. The first shut valve 39 is pressed to the downstream side of the gas-containing liquid 3 by the flow of the gas-containing liquid 3, and is pressed to the upstream side of the gas-containing liquid 3 by the elastic force of the second spring 40.

  The first shut valve 39 contacts the step portion 31 c by moving to the upstream side of the gas-containing liquid 3, and separates from the step portion 31 c by moving to the downstream side of the gas-containing liquid 3. The step portion 31 c can support the first shut valve 39 against pressing by the second spring 40 by making contact with the first shut valve 39.

  When the first shut valve 39 is in contact with the step portion 31c, the gap between the first shut valve 39 and the step portion 31c is closed. Therefore, the flow of the gas-containing liquid 3 from the inlet to the outlet of the second accommodating portion 38 is blocked by the first shut valve 39. On the other hand, when the first shut valve 39 is detached from the step portion 31c, a gap is generated between the first shut valve 39 and the step portion 31c. Therefore, the gas-containing liquid 3 passes through this gap and flows into the second housing part 38, and then is discharged to the first housing part 33. This gap is expanded by the flow of the gas-containing liquid 3 moving the first shut valve 39 to the downstream side, and the elastic force of the second spring 40 is reduced by moving the first shut valve 39 to the upstream side. .

  The gas containing liquid production | generation part 21 can raise the flow rate of the gas containing liquid 3 by letting the gas containing liquid 3 pass through the clearance gap between the 1st shut valve 39 and the level | step-difference part 31c. And the gas-containing liquid 3 in which the flow velocity increased collided with the wall surface etc. of the 2nd accommodating part 38, and the unmixed gas 1 and the liquid 2 in the gas-containing liquid 3 are mixed. Further, bubble nuclei 3a are generated in the gas-containing liquid 3 due to pressure fluctuations at the time of collision.

[Operator 36]
The operating element 36 is accommodated in the first accommodating part 33 so as to be movable in the first accommodating part 33. The operating element 36 is pressed downstream of the gas-containing liquid 3 by the flow of the gas-containing liquid 3. The operating element 36 further supports the first spring 37 from the downstream side of the gas-containing liquid 3, and is pressed to the upstream side of the gas-containing liquid 3 by the elastic force of the first spring 37. The electromagnet coil 34 applies an electromagnetic force to the actuator 36. As a result, the actuator 36 moves in the first housing portion 33 by the flow of the gas-containing liquid 3, the elastic force of the first spring 37, and the electromagnetic force of the electromagnetic coil 34.

  The operating element 36 can mix the unmixed gas 1 and the liquid 2 in the gas-containing liquid 3 by reciprocating to the upstream side and the downstream side of the gas-containing liquid 3. Further, when the actuator 36 reciprocates, a large pressure fluctuation is applied to the gas-containing liquid 3. Thereby, a large number of bubble nuclei 3 a can be generated in the gas-containing liquid 3. The gas-containing liquid 3 in the first housing part 33 passes through the flow path of the actuator 36 and is discharged to the third housing part 41.

[Second shut valve 42]
The 2nd shut valve 42 is accommodated in the 3rd accommodating part 41 so that the inside of the 3rd accommodating part 41 can be moved. The second shut valve 42 is pressed to the downstream side of the gas-containing liquid 3 by the flow of the gas-containing liquid 3, and is pressed to the upstream side of the gas-containing liquid 3 by the elastic force of the third spring 43.

  The second shut valve 42 contacts the second portion 36b of the actuator 36 by moving to the upstream side of the gas-containing liquid 3, and moves to the downstream side of the gas-containing liquid 3 to move to the second portion of the actuator 36. Depart from 36b. The second portion 36 b can support the second shut valve 41 against pressing by the third spring 43 by contacting the second shut valve 42.

  When the second shut valve 42 is in contact with the second portion 36b, the gap between the second shut valve 42 and the second portion 36b is closed. Therefore, the flow of the gas-containing liquid 3 from the inlet to the outlet of the third accommodating portion 41 is blocked by the second shut valve 42. On the other hand, when the second shut valve 42 is detached from the second portion 36b, a gap is generated between the second shut valve 42 and the second portion 36b. Therefore, the gas-containing liquid 3 passes through this gap and flows into the third accommodating portion 41, and then is discharged to the first pressure increasing stage 22a. This gap is expanded when the flow of the gas-containing liquid 3 moves the second shut valve 42 to the downstream side, and the elastic force of the third spring 43 is reduced by moving the second shut valve 42 to the upstream side. .

  The gas containing liquid production | generation part 21 can raise the flow rate of the gas containing liquid 3 by letting the gas containing liquid 3 pass through the clearance gap between the 2nd shut valve 42 and the 2nd part 36b. And the gas-containing liquid 3 in which the flow velocity increased collided with the wall surface etc. of the 3rd accommodating part 41, and the unmixed gas 1 and the liquid 2 in the gas-containing liquid 3 are mixed. Further, bubble nuclei 3a are generated in the gas-containing liquid 3 due to pressure fluctuations at the time of collision.

(2) Pressure increasing part 22
[First pressure increasing stage 22a]
The first pressure-increasing stage 22 a includes an accommodating portion 51, a shut valve 52, a spring 53, and a valve holder 54. The shut valve 52 is an example of an opening / closing member. The spring 53 is an example of an elastic member. The valve holder 54 is an example of a support part.

  The accommodating part 51 has a cylindrical shape and is used for accommodating the gas-containing liquid 3. The container 51 has an inlet for the gas-containing liquid 3 at the front end and an outlet for the gas-containing liquid 3 at the rear end. The shut valve 52 has a spherical shape and is disposed in the accommodating portion 51. The spring 53 is disposed in the accommodating portion 51 and has a front end that contacts the shut valve 52 and a rear end that contacts the step portion of the accommodating portion 51. The diameter of the spring 53 increases toward the downstream side of the gas-liquid-containing liquid 3, and has a shape close to a conical shape. Thereby, the spring 53 can be operated smoothly. The valve holder 54 is disposed in the accommodating portion 51 and supports the shut valve 52 against pressing by the spring 53.

  In addition, although the front end of the spring 53 of this embodiment is being fixed to the shut valve 52, it does not need to be fixed to the shut valve 52. Similarly, although the rear end of the spring 53 of the present embodiment is fixed to the storage portion 51, it does not have to be fixed to the storage portion 51. Further, the valve holder 54 may be formed of the same member as the housing portion 51, or may be formed of a member different from the housing portion 51.

  The shut valve 52 is accommodated in the accommodating portion 51 so as to be movable in the accommodating portion 51. The shut valve 52 is pressed to the downstream side of the gas-containing liquid 3 by the flow of the gas-containing liquid 3, and is pressed to the upstream side of the gas-containing liquid 3 by the elastic force of the spring 53.

  The shut valve 52 contacts the valve holder 54 by moving to the upstream side of the gas-containing liquid 3, and is detached from the valve holder 54 by moving to the downstream side of the gas-containing liquid 3. The valve holder 54 can support the shut valve 52 against being pressed by the spring 53 by contacting the shut valve 52.

  When the shut valve 52 is in contact with the valve holder 54, the gap between the shut valve 52 and the valve holder 54 is closed. Therefore, the shut valve 52 prevents the flow of the gas-containing liquid 3 from the inlet to the outlet of the accommodating portion 51. On the other hand, when the shut valve 52 is detached from the valve holder 54, a gap is generated between the shut valve 52 and the valve holder 54. Therefore, the gas-containing liquid 3 flows from the inlet of the storage part 51 into the storage part 51 through this gap, and then is discharged from the outlet of the storage part 51 to the second pressure increasing stage 22b. This gap is expanded when the flow of the gas-containing liquid 3 moves the shut valve 52 to the downstream side, and is reduced by the elastic force of the spring 53 moving the shut valve 52 to the upstream side.

  The first pressure-increasing stage 22a can increase the flow rate of the gas-containing liquid 3 by passing the gas-containing liquid 3 through the gap between the shut valve 52 and the valve holder 54, and the pressure of the gas-containing liquid 3 can be increased. Can be increased.

[Second pressure increasing stage 22b]
The second pressure-increasing stage 22 b includes a housing part 61, a shut valve 62, a spring 63, a valve holder 64, and a gas injection part 65. The shut valve 62 is an example of an opening / closing member. The spring 63 is an example of an elastic member. The valve holder 64 is an example of a support part.

  The structures and operations of the accommodating portion 61, the shut valve 62, the spring 63, and the valve holder 64 are the same as the structures and operations of the accommodating portion 51, the shut valve 52, the spring 53, and the valve holder 54. Therefore, the second pressure-increasing stage 22b can increase the flow rate of the gas-containing liquid 3 by passing the gas-containing liquid 3 through the gap between the shut valve 62 and the valve holder 64. The pressure can be increased.

The gas injection unit 65 is attached to the storage unit 61 and is used to inject gas into the gas-containing liquid 3 in the storage unit 61. In the present embodiment, the gas inlet portion 32 is used for introducing a normal pressure gas, and the gas injection portion 65 is used for injecting a cylinder pressure gas higher than the normal pressure. An example of the former gas is air, and an example of the latter gas is nitrogen (N ₂ ). The gas injection unit 65 is used, for example, to inject a gas that gives a desired function (disinfection, sterilization, etc.) to the gas-containing liquid 3.

  The gas injection unit 65 may be provided in any of the first to third pressure boosting stages 22a to 22c, or may be provided to two or more pressure boosting stages of the first to third pressure boosting stages 22a to 22c. It may be provided. The gas injection part 65 of this embodiment is provided in the second pressure-increasing stage 22b, and the pressure-increasing stages other than the first and last pressure-increasing stages among the first to third pressure-increasing stages 22a to 22c. Is provided. For this purpose, the first pressure-increasing stage (first pressure-increasing stage 22 a) serving as an interface with the gas-containing liquid generation unit 21 and the last pressure-increasing stage (third pressure-increasing stage as an interface with the foaming part 23 are used. Complicating the structure of the pressure stage 22c) can be avoided, and there is an advantage that the pressure-increasing part 22 can be easily connected to the gas-containing liquid generating part 21 and the foaming part 23.

[Third pressure increasing stage 22c]
The third pressure-increasing stage 22 c includes an accommodating portion 71, a shut valve 72, a spring 73, and a valve holder 74. The shut valve 72 is an example of an opening / closing member. The spring 73 is an example of an elastic member. The valve holder 74 is an example of a support part.

  The structures and operations of the accommodating portion 71, the shut valve 72, the spring 73, and the valve holder 74 are the same as the structures and operations of the accommodating portion 51, the shut valve 52, the spring 53, and the valve holder 54. Therefore, the third pressure-increasing stage 22c can increase the flow rate of the gas-containing liquid 3 by passing the gas-containing liquid 3 through the gap between the shut valve 72 and the valve holder 74. The pressure can be increased.

  In addition, the strength (spring constant) of the spring of the Kth pressure increasing stage of this embodiment increases as the value of K increases (K is an integer from 1 to N). Therefore, the strength of the spring 63 of the second pressure boosting stage 22b is stronger than the strength of the spring 53 of the first pressure boosting stage 22a. The strength of the spring 73 of the third pressure boosting stage 22c is stronger than the strength of the spring 63 of the second pressure boosting stage 22b.

  Further, the volume of the accommodating portion of the Kth pressure increasing stage of the present embodiment increases as the value of K increases. Therefore, the volume of the accommodating part 61 of the second pressure-increasing stage 22b is larger than the volume of the accommodating part 51 of the first pressure-increasing stage 22a. The volume of the accommodating part 71 of the third pressure-increasing stage 22c is larger than the volume of the accommodating part 61 of the second pressure-increasing stage 22b. The volume of the accommodating part is the volume of the internal space from the inlet to the outlet of the accommodating part.

  Such setting of strength and volume has an advantage that the pressure of the gas-containing liquid 3 can be increased as the value of K increases. Therefore, the pressure of the gas-containing liquid 3 discharged from the first pressure increasing stage 22a is higher than the pressure of the gas-containing liquid 3 discharged from the gas-containing liquid generating unit 21. Further, the pressure of the gas-containing liquid 3 discharged from the second pressure-increasing stage 22b is higher than the pressure of the gas-containing liquid 3 discharged from the first pressure-increasing stage 22a. Further, the pressure of the gas-containing liquid 3 discharged from the third pressure increasing stage 22c is higher than the pressure of the gas-containing liquid 3 discharged from the second pressure increasing stage 22b.

  The diameters of the shut valves 52, 62, 72 may be the same value or different values. In the present embodiment, the diameters of the shut valves 52, 62, 72 are set to the same value. Further, the diameters of the openings of the valve holders 54, 64, and 74 may be the same value or different values. In the present embodiment, the diameters of the openings of the valve holders 64 and 74 are set to the same value, and the diameter of the opening of the valve holder 54 is set to be several percent smaller than the diameter of the openings of the valve holders 64 and 74. ing.

  The shut valves 52, 62, and 72 may be formed of the same material or different materials. In this embodiment, the shut valves 52, 62, 72 are made of the same material. Therefore, the shut valves 52, 62, 72 of the present embodiment have the same mass.

(3) Foaming part 23
The foaming portion 23 includes a first housing portion 81, a second housing portion 82, a third housing portion 83, a shut valve 84, a spring 85, and a valve holder 86. The 1st, 2nd, and 3rd accommodating parts 81, 82, and 83 are examples of an accommodating part. The shut valve 84 is an example of an opening / closing member. The spring 85 is an example of an elastic member. The valve holder 86 is an example of a support part.

  The first storage part 81 has a cylindrical shape and is used for storing the gas-containing liquid 3. The 1st accommodating part 81 has the inlet_port | entrance of the gas containing liquid 3 in a front end, and has the exit 81a, 81b of the gas containing liquid 3 in a side surface and a rear end. The rear end outlet 81b is normally blocked by a sealing member, and the sealing member is removed when the discharge tube 24 is inserted into the rear end outlet 81b. The discharge tube 24 is configured to discharge the gas-containing liquid 3 from the distal end portion 24 a and generate bubbles 3 b from the gas-containing liquid 3. The discharge tube 24 is, for example, a catheter. The rear end outlet 81b is an example of a second outlet.

  The second storage portion 82 has a cylindrical shape, is attached to the first storage portion 81, and is used for storing the gas-containing liquid 3. The 2nd accommodating part 82 has the entrance of the gas containing liquid 3 in the exit 81a of the 1st accommodating part 81, and has the exit 82a of the gas containing liquid 3 in the side surface.

  The third accommodating portion 83 has a cylindrical shape, is attached to the second accommodating portion 82, and is used for accommodating the gas-containing liquid 3. The 3rd accommodating part 83 has the entrance of the gas containing liquid 3 in the exit 82a of the 2nd accommodating part 82, and has the exit 83a of the gas containing liquid 3 in a rear end. The foaming unit 23 generates bubbles 3b in the gas-containing liquid 3 supplied from the pressure increasing unit 22, and discharges the gas-containing liquid 3 containing the bubbles 3b from the outlet 83a. The outlet 83b is an example of a first outlet.

  The shut valve 84 has a spherical shape and is disposed in the second accommodating portion 82. The spring 85 is disposed in the second accommodating portion 82 and has a front end that contacts the shut valve 84 and a rear end that contacts the step portion of the second accommodating portion 82. The valve holder 86 is disposed in the second accommodating portion 82 and supports the shut valve 84 against pressing by the spring 85.

  In addition, although the front end of the spring 85 of this embodiment is being fixed to the shut valve 84, it does not need to be fixed to the shut valve 84. Similarly, although the rear end of the spring 85 of the present embodiment is fixed to the second storage portion 82, it may not be fixed to the second storage portion 82. Further, the valve holder 86 may be formed of the same member as the first storage portion 81, may be formed of the same member as the second storage portion 82, or the first and second storage portions 81. , 82 may be used.

[Shut valve 84]
The shut valve 84 is accommodated in the second accommodating portion 82 so as to be movable in the second accommodating portion 82. The shut valve 84 is pressed to the downstream side of the gas-containing liquid 3 by the flow of the gas-containing liquid 3, and is pressed to the upstream side of the gas-containing liquid 3 by the elastic force of the spring 85.

  The shut valve 84 contacts the valve holder 86 by moving to the upstream side of the gas-containing liquid 3, and is detached from the valve holder 86 by moving to the downstream side of the gas-containing liquid 3. The valve holder 86 can support the shut valve 84 against being pressed by the spring 85 by contacting the shut valve 84.

  When the shut valve 84 is in contact with the valve holder 86, the gap between the shut valve 84 and the valve holder 86 is closed. Therefore, the shut valve 84 prevents the flow of the gas-containing liquid 3 from the inlet to the outlet of the second accommodating portion 82. On the other hand, when the shut valve 84 is detached from the valve holder 86, a gap is generated between the shut valve 84 and the valve holder 86. Therefore, the gas-containing liquid 3 flows into the second storage part 82 from the first storage part 81 through this gap, and then is discharged from the second storage part 82 to the third storage part 83. This gap is expanded when the flow of the gas-containing liquid 3 moves the shut valve 84 to the downstream side, and is reduced by the elastic force of the spring 85 moving the shut valve 84 to the upstream side.

  The foaming unit 23 can increase the flow rate of the gas-containing liquid 3 and expose the gas-containing liquid 3 to atmospheric pressure by passing the gas-containing liquid 3 through the gap between the shut valve 84 and the valve holder 86. . The reason is that the outlet 83a of the foaming part 23 is open to the atmosphere. Thereby, a large number of bubbles 3 b can be generated in the gas-containing liquid 3. The bubbles 3b are also generated when the gas-containing liquid 3 is ejected from the outlet 83a.

  In the present embodiment, the pressure of the gas-containing liquid 3 increases in the pressure increasing unit 22. Therefore, when the gas-containing liquid 3 is exposed to the atmospheric pressure at the foaming part 23, the pressure of the gas-containing liquid 3 is greatly reduced. Therefore, according to the present embodiment, a large number of bubble nuclei 3a are generated in the gas-containing liquid generation unit 21, and the pressure of the gas-containing liquid 3 is greatly reduced in the foaming unit 23, thereby reducing the fine bubbles 3b. A gas-containing liquid 3 contained at a high concentration can be generated.

  Moreover, the pressure increase part 22 of this embodiment has the 1st to 3rd pressure increase stage 22a-22c, and each pressure increase stage is a gas containing liquid by the effect | action of the clearance gap between a shut valve and a valve holder. Increase the pressure of 3. Therefore, the pressure increasing unit 22 of the present embodiment can process the gas-containing liquid 3 without using a rotating body such as an impeller. Therefore, according to this embodiment, it can suppress that the uniformity of the distribution of the bubble nucleus 3a in the gas containing liquid 3 and the bubble 3b falls, and the uniformity of the bubble 3b in the gas containing liquid 3 is improved. Can be made.

  This also holds true for the gas-containing liquid generating unit 21 that processes the gas-containing liquid 3 using the operation valve 36 and the shut valves 39 and 42 and the foaming unit 23 that processes the gas-containing liquid 3 using the shut valve 84. According to this embodiment, the gas-containing liquid 3 is processed by the gas-containing liquid generating unit 21, the pressure-increasing unit 22, and the foaming unit 23 without using a rotating body such as an impeller, so that bubbles in the gas-containing liquid 3 are processed. The uniformity of 3b can be further improved.

(4) Operation | movement of gas containing liquid production | generation apparatus Next, with reference to FIG. 3, operation | movement of the gas containing liquid production | generation apparatus of 1st Embodiment is demonstrated.

  At the time of standby of the gas-containing liquid generating apparatus, the power supply of the electromagnet coil 34 is set to OFF and the actuator 36 is stopped. On the other hand, when operating the gas-containing liquid generating apparatus, the power source of the electromagnet coil 34 is switched on, and the operating element 36 starts operating. The electromagnet coil 34 is operated by the power from the power cord 35.

  When the operation of the gas-containing liquid generating device starts, the introduction of the gas 1 and the liquid 2 is started, and the gas-containing liquid 3 (or the gas 1 and the liquid 2) enters the second accommodating portion 38 from the gap of the first shut valve 39. It flows in and then flows into the first housing part 33. In the first housing part 33, the actuator 36 reciprocates in the first housing part 33 by the flow of the gas-containing liquid 3, the elastic force of the first spring 37, and the electromagnetic force of the electromagnet coil 34. Thereby, the gas 1 and the liquid 2 are mixed, and the bubble nucleus 3 a is generated in the gas-containing liquid 3. These phenomena also occur in the first shut valve 39 and the second shut valve 42. The gas-containing liquid 3 in the first housing part 33 flows into the third housing part 41 from the gap between the second shut valves 42 and is then discharged to the pressure increasing part 22.

  The gas-containing liquid 3 discharged from the gas-containing liquid generation unit 21 sequentially passes through the first to third pressure increasing stages 22a to 22c. Thereby, the pressure of the gas-containing liquid 3 increases. The gas-containing liquid 3 discharged from the pressure increasing part 22 is exposed to atmospheric pressure in the foaming part 23, and as a result, bubbles 3 b are generated in the gas-containing liquid 3.

  When the discharge tube 24 is inserted into the foaming portion 23, the gas-containing liquid 3 discharged from the pressure increasing portion 22 is discharged from the distal end portion 24 a of the discharge tube 24. As a result, bubbles 3b are generated from the gas-containing liquid 3.

(5) Modified Example of First Embodiment FIG. 4 is a cross-sectional view illustrating a configuration of a gas-containing liquid generating device according to a modified example of the first embodiment.

  Reference numerals 51a and 51b respectively denote an inlet and an outlet of the gas-containing liquid 3 in the accommodating portion 51 of the first pressure-increasing stage 22a. Reference numerals 61a and 61b denote an inlet and an outlet of the gas-containing liquid 3 in the accommodating portion 61 of the second pressure increasing stage 22b, respectively. Reference numeral 71a indicates an inlet of the gas-containing liquid 3 in the accommodating portion 71 of the third pressure increasing stage 22c. Reference numerals 71b and 71c denote outlets of the gas-containing liquid 3 in the accommodating portion 71 of the third pressure-increasing stage 22c.

  In the present modification, the first accommodating portion 81 of the foaming portion 23 is deleted. Therefore, the 2nd accommodating part 82 of the foaming part 23 is attached to the exit 71b of the side surface of the 3rd pressure increase stage 22c. The gas-containing liquid 3 in the pressure increasing unit 22 is discharged from the side surface outlet 71b to the foaming unit 23. Further, an outlet 71c for inserting the discharge tube 24 is provided at the rear end of the third pressure increasing stage 22c. The rear end outlet 71c is normally blocked by a sealing member, and the sealing member is removed when the discharge tube 24 is inserted into the rear end outlet 71c. The side outlet 71b is an example of a first outlet. The rear end outlet 71c is an example of a second outlet.

  Note that the length of the spring 85 in the foaming portion 23 may be adjustable by a nut provided at the rear end of the second accommodating portion 82. In this case, the spring 85 is lengthened by tightening the nut, and the spring 85 is lengthened by loosening the nut. Thereby, the elastic force which acts on the shut valve 84 from the spring 85 can be adjusted.

  FIG. 5 is another cross-sectional view illustrating a configuration of a gas-containing liquid generating apparatus according to a modification of the first embodiment.

  The pressure increasing part 22 of this modification is configured to be detachable from the gas-containing liquid generating part 21. Further, the first to third pressure boosting stages 22a to 22c of the present modification are configured to be detachable from each other.

  Specifically, the first pressure-increasing stage 22a inserts the protrusion P1 of the first pressure-increasing stage 22a into the opening P2 of the second pressure-increasing stage 22b, so that the second pressure-increasing stage 22b. It is attached to. Thread grooves may be provided on the outer peripheral surface of the protrusion P1 and the inner peripheral surface of the opening P2. The second pressure boosting stage 22b is attached to the third pressure boosting stage 22c by inserting the protrusion P3 of the second pressure boosting stage 22b into the opening P4 of the third pressure boosting stage 22c. The Thread grooves may be provided on the outer peripheral surface of the protrusion P3 and the inner peripheral surface of the opening P4.

  In addition, you may mutually replace a protrusion part and an opening part. For example, the protrusion of the second pressure boosting stage 22b may be inserted into the opening of the first pressure boosting stage 22a. Further, the protrusion of the third pressure boosting stage 22c may be inserted into the opening of the second pressure boosting stage 22b.

  As described above, the gas-containing liquid generating apparatus according to the present embodiment includes the pressure-increasing part 22 having the first to third pressure-increasing stages 22a to 22c, and each pressure-increasing stage includes a shut valve and a valve holder. The pressure of the gas-containing liquid 3 is increased by the action of the gap between them. Therefore, according to the present embodiment, the uniformity of the bubbles 3b in the gas-containing liquid 3 can be improved.

(Second Embodiment)
FIG. 6 is a cross-sectional view illustrating a method for using the gas-containing liquid generating apparatus according to the second embodiment.

  The gas-containing liquid generating apparatus in FIG. 6 has the same configuration as the gas-containing liquid generating apparatus in FIG. FIG. 6 shows a twin tube 26 having a discharge tube 24 and a suction tube 25. In the twin tube 26, the discharge tube 24 is surrounded by the suction tube 25 in the vicinity of the distal end portion 24 a of the discharge tube 24. The discharge tube 24 is attached to the outlet 81b of the foaming part 23 of the gas-containing liquid generator. The suction tube 25 is attached to the liquid inlet 31 of the gas-containing liquid generator. In addition, the exit 83a of the foaming part 23 of a gas containing liquid production | generation apparatus is blocked | closed with the detachable sealing member.

  In the present embodiment, the twin tube 26 is inserted into the milk passage 27a of the milk 27 of the cow, the gas-containing liquid 3 is supplied to the discharge tube 24 from the outlet 81b of the foaming portion 23 of the gas-containing liquid generating device, and the discharge tube 24 The gas-containing liquid 3 is discharged into the milk 27 from the front end portion 24a. As a result, bubbles 3 b are generated from the gas-containing liquid 3, and the bubbles 3 b are supplied into the milk 27. The bacteria inside the milk 27 can be removed by the sterilization action of the bubbles 3b.

  FIG. 7 is another cross-sectional view illustrating a method for using the gas-containing liquid generating apparatus according to the second embodiment.

  The distal end portion 24 a of the discharge tube 24 is provided with a narrow port portion 24 b in which the flow path of the discharge tube 24 is narrowed. In this embodiment, the bubble 3b can be produced | generated by allowing the gas containing liquid 3 to pass through the narrow opening part 24b.

The gas injection unit 65 is used to inject gas into the gas-containing liquid 3 in the pressure increase unit 22. The gas injection unit 65 is used, for example, to inject a gas that gives a desired function to the gas-containing liquid 3. Examples of such gases are carbon dioxide (CO ₂ ), ozone (O ₃ ), hydrogen (H ₂ ), and the like.

  The gas-containing liquid 3 discharged from the discharge tube 24 into the milk 27 is sucked from the suction tube 25 and returns to the liquid inlet 31 of the gas-containing liquid generator. Therefore, the gas-containing liquid generating device generates bubbles 3 b again in the gas-containing liquid 3 and discharges them to the discharge tube 24. Thus, the gas-containing liquid 3 of the present embodiment circulates between the discharge tube 24, the milk 27, the suction tube 25, and the gas-containing liquid generator. Thereby, the gas containing liquid 3 can be produced | generated and used efficiently.

  As described above, according to the present embodiment, the gas-containing liquid generating device can be used for sterilization inside the milk 27. In addition, you may use the gas containing liquid production | generation apparatus of this embodiment for another use. Further, the gas-containing liquid generating apparatus of the present embodiment may have the same configuration as the gas-containing liquid generating apparatus of FIG. 4 or 5 instead of having the same configuration as the gas-containing liquid generating apparatus of FIG. . In this case, the discharge tube 24 is inserted into the outlet 71 c of the pressure increasing unit 22.

  As mentioned above, although the example of the specific aspect of this invention was demonstrated by 1st and 2nd embodiment of this invention, this invention is not limited to these embodiment. These embodiments can be implemented with various modifications without departing from the scope of the present invention. The form which added such a change is also contained in the scope of the present invention.

1: gas, 1a: gas molecule, 2: liquid, 2a: liquid molecule,
3: Gas-containing liquid, 3a: bubble nucleus, 3b: bubble,
11: Gas-liquid mixing part, 12: Bubble nucleus generation part, 13: Bubble generation part, 14: Kiyosei tank,
21: Gas-containing liquid generation part, 22: Pressure increase part,
22a: first pressure-increasing stage, 22b: second pressure-increasing stage, 22c: third pressure-increasing stage,
23: foaming part, 24: discharge tube, 24a: tip part, 24b: narrow mouth part,
25: Inhalation tube, 26: Twin tube, 27: Milk, 27a: Breast passage,
31: liquid inlet, 31a: first part, 31b: second part, 31c: step part,
32: Gas inlet portion, 33: First housing portion, 34: Electromagnetic coil, 35: Power cord,
36: Actuator, 36a: First part, 36b: Second part, 37: First spring,
38: 2nd accommodating part, 39: 1st shut valve, 40: 2nd spring,
41: 3rd accommodating part, 41a: 1st part, 41b: 2nd part,
42: second shut valve, 43: third spring,
51: accommodating part, 51a: inlet, 51b: outlet,
52: Shut valve, 53: Spring, 54: Valve holder,
61: accommodating part, 61a: inlet, 61b: outlet,
62: Shut valve, 63: Spring, 64: Valve holder, 65: Gas injection part,
71: accommodating portion, 71a: inlet, 71b: outlet, 71c: outlet,
72: Shut valve, 73: Spring, 74: Valve holder,
81: 1st accommodating part, 81a: Exit, 81b: Exit,
82: 2nd accommodating part, 82a: Outlet,
83: 3rd accommodating part, 83a: Exit
84: Shut valve, 85: Spring, 86: Valve holder

Claims (17)

A gas-containing liquid generator that mixes gas and liquid to generate a gas-containing liquid;
A first to Nth (N is an integer greater than or equal to 2) pressure-increasing stages, and a pressure-increasing unit that increases the pressure of the gas-containing liquid that sequentially passes through the first to Nth pressure-increasing stages;
A foaming part for generating bubbles in the gas-containing liquid supplied from the pressure increasing part,
Each of the first to Nth pressure boosting stages includes:
A storage portion having an inlet and an outlet for the gas-containing liquid, and storing the gas-containing liquid;
An opening / closing member provided in the housing portion and pressed to the downstream side of the gas-containing liquid by the flow of the gas-containing liquid;
An elastic member that presses the opening / closing member to the upstream side of the gas-containing liquid by an elastic force;
A support portion that is provided in the housing portion and contacts the opening / closing member to support the opening / closing member against pressing by the elastic member;
The gas-containing liquid generating apparatus, wherein the gas-containing liquid flows from the inlet to the outlet via a gap between the opening / closing member and the support portion.   The gas-containing liquid production | generation apparatus of Claim 1 with which the strength of the said elastic member of the Kth (K is an integer of 1 to N) pressure | voltage increase stage increases, so that the value of K increases.   3. The gas-containing liquid generating apparatus according to claim 1, wherein the volume of the accommodating portion of the Kth (K is an integer from 1 to N) pressure increasing section increases as the value of K increases.   4. The gas-containing liquid according to claim 1, wherein at least one of the first to N-th pressure increasing stages includes a gas injection unit that injects a gas into the gas-containing liquid. Generator.   5. The gas-containing liquid generating device according to claim 4, wherein the gas injection unit is provided in a pressure increasing stage other than the first and last pressure increasing stages among the first to Nth pressure increasing stages.   The gas-containing liquid generating device according to claim 1, wherein the opening / closing member has a spherical shape.   The gas-containing liquid generating apparatus according to any one of claims 1 to 6, wherein the elastic member is a spring disposed in the housing portion.   The gas-containing liquid production | generation apparatus of Claim 7 with which the diameter of the said spring increases, so that it goes downstream of the said gas-liquid containing liquid.   The gap is expanded when the flow of the gas-containing liquid moves the opening / closing member to the downstream side, and the elastic force of the elastic member is reduced by moving the opening / closing member to the upstream side. The gas-containing liquid production | generation apparatus of any one of 1 to 8.   10. The gas-containing device according to claim 1, wherein the opening / closing member closes the gap by contacting the support portion and prevents the gas-containing liquid from flowing from the inlet to the outlet. Liquid generator. The pressure increasing part is
A first outlet for discharging the gas-containing liquid to the foaming portion;
A second outlet for inserting a tube for generating the bubbles from the gas-containing liquid;
The gas-containing liquid production | generation apparatus of any one of Claim 1 to 10 provided with these. The gas-containing liquid generator is
An accommodating portion for accommodating the gas-containing liquid;
A first elastic member provided in the housing portion;
It is provided in the storage part, supports the first elastic member from the downstream side of the gas-containing liquid, moves in the storage part by the flow of the gas-containing liquid and the elastic force of the first elastic member, and contains the gas A moving member having a liquid flow path;
A first opening / closing member provided in the housing portion and pressed to the downstream side of the gas-containing liquid by the flow of the gas-containing liquid;
A second elastic member that presses the first opening / closing member to the upstream side of the gas-containing liquid by an elastic force;
A support portion provided in the housing portion and supporting the first opening / closing member against pressing by the second elastic member in contact with the first opening / closing member;
The gas according to any one of claims 1 to 11, wherein the gas-containing liquid passes through the flow path of the moving member after passing through a gap between the first opening / closing member and the support portion. Contained liquid generator.   The gas-containing liquid generating apparatus according to claim 12, wherein the second elastic member is disposed so as to be surrounded by the first elastic member. The gas-containing liquid generation unit further includes a coil that applies an electromagnetic force to the moving member,
The gas-containing liquid generating apparatus according to claim 12 or 13, wherein the moving member moves by the flow of the gas-containing liquid, the elastic force of the first elastic member, and the electromagnetic force of the coil. The gas-containing liquid generation unit further includes
A second opening / closing member provided in the housing portion and pressed to the downstream side of the gas-containing liquid by the flow of the gas-containing liquid;
A third elastic member that presses the second opening and closing member to the upstream side of the gas-containing liquid by an elastic force;
The moving member is in contact with the second opening / closing member to support the second opening / closing member against pressing by the third elastic member,
The gas according to any one of claims 12 to 14, wherein the gas-containing liquid passes through a gap between the second opening / closing member and the moving member after passing through the flow path of the moving member. Contained liquid generator. The foaming part is
A first outlet for discharging the gas-containing liquid containing the bubbles;
A second outlet for inserting a tube for generating the bubbles from the gas-containing liquid;
The gas-containing liquid production | generation apparatus of any one of Claim 1 to 15 provided with these. The foaming part is
An accommodating portion for accommodating the gas-containing liquid;
An opening / closing member provided in the housing portion and pressed to the downstream side of the gas-containing liquid by the flow of the gas-containing liquid;
An elastic member that presses the opening / closing member to the upstream side of the gas-containing liquid by an elastic force;
A support portion that is provided in the housing portion and contacts the opening / closing member to support the opening / closing member against pressing by the elastic member;
The gas-containing liquid production | generation apparatus of any one of Claim 1 to 16 provided with these.

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