JP7129122B1 - Diluted hydrogen gas supply device - Google Patents

Abstract

The present invention provides a configuration of a diluted hydrogen gas supply device capable of reducing the size of bubbles of diluted gas jetted in an electrolytic cell in which hydrogen gas is generated. Kind Code: A1 A negative electrode (11) and a positive electrode (12) are separated by a diaphragm (13), or the negative electrode (11) and the positive electrode (12) are arranged at a predetermined interval without a diaphragm (13) interposed therebetween, and an electrolytic solution supply part (10) is provided. In the electrolytic cell 1, a flow pipe 2 for flowing the electrolytic solution W from the upper side to the lower side by the operation of the pump 21 or the screw 21 equipped with an impeller from the inner wall of the electrolytic cell 1 at two places near the negative electrode 11 , and is positioned above the region in which the electrolytic solution W flows away from the negative electrode 11 and upstream of the pump 21 or the screw 21 among the positions in the flow pipe 2. A diluted hydrogen gas supply apparatus capable of achieving the above object by providing a diluted gas ejector 3 . [Selection drawing] Fig. 4

Description

The present invention is directed to a diluted hydrogen gas supply apparatus for the purpose of supplying hydrogen to a living body.

Hydrogen gas supplied to the living body is usually a mixed gas with a concentration of 0.1 to 18.0 vol %.

As such a diluted hydrogen gas supply device, for example, in Patent Document 1, a negative electrode portion (cathode chamber) having a negative electrode and a positive electrode portion (anode chamber) having a positive electrode are divided by a diaphragm in an electrolytic cell. A diluent gas supply device that supplies an electrolytic solution to both the positive electrode portion and the positive electrode portion, and provides a hydrogen gas outlet and an oxygen gas outlet on the upper side of the negative electrode portion and the positive electrode portion, respectively, and ejects (discharges) the dilution gas to the negative electrode portion. Alternatively, the negative electrode and the positive electrode are arranged at a predetermined interval, a common discharge part for hydrogen gas and oxygen gas is provided without being divided by the diaphragm, and the dilution gas supplier is located closer to the negative electrode than the positive electrode A diluent gas supply device has been proposed by providing a

As a technical advantage of the diluted hydrogen gas supply device, foreign substances such as dust contained in the diluted gas are separated from the cathode chamber during electrolysis, so that a clean mixed gas, that is, diluted hydrogen gas is introduced into the living body. It is explained that it can be supplied (section regarding the effect of the invention in paragraph [0007] of Patent Document 1).
However, the dust in the diluent gas is contained in the air bubbles in the electrolyte, and floats in the electrolyte together with the air bubbles. It is premised that it is separated in the electrolytic solution by

However, the diluent gas bubbles do not completely disappear until reaching the upper end of the electrolyte. It has to reach the outlet.

To further explain, as shown in Patent Document 2, in order to enhance the dust trapping efficiency of the air bubbles, turbulent flow of the air bubbles is generated and the air bubbles are made smaller to reduce the dust in the air bubbles. is essential to improve the probability of contact with the electrolytic solution (however, in the case of Patent Document 2, water).

However, in Patent Literature 1, no technical idea is made at all to improve the efficiency of separating the dust in the bubbles into the electrolytic solution by generating a turbulent flow in the bubbles.

Japanese Patent No. 6667873 JP-A-4-200615

SUMMARY OF THE INVENTION An object of the present invention is to provide a structure of a diluted hydrogen gas supply apparatus capable of reducing the size of bubbles of diluted gas jetted in an electrolytic cell in which hydrogen gas is generated.

In order to solve the above problems, the basic configuration of the present invention is
(1) A negative electrode portion having a negative electrode and a positive electrode portion having a positive electrode are separated by a diaphragm permeable to an electrolytic solution, and either one or both of the negative electrode portion and the positive electrode portion are connected to each other by an electrolytic solution supply portion. In an electrolytic cell having hydrogen gas and oxygen gas outlets on the upper side of the negative electrode portion and the positive electrode portion, respectively, electrolysis is performed by operating a pump or screw equipped with an impeller from two inner walls above and below the negative electrode portion A flow pipe in which the liquid flows while forming a turbulent flow from the top to the bottom is protruded, and among the positions in the flow pipe, the electrolyte is away from the negative electrode and is upstream of the pump or screw. Equipped with a diluent gas ejector at a position above the area where the gas is flowing in, and the formation of the turbulent flow and the collision of the ejected diluent gas with the pump or screw cause the miniaturization of bubbles. A diluted hydrogen gas supply device characterized by
(2) In an electrolytic cell comprising a negative electrode and a positive electrode arranged at a predetermined interval and provided with an electrolytic solution supply part, a pump equipped with an impeller from two upper and lower inner walls of the electrolytic cell near the negative electrode, or The operation of the screw projects a flow pipe through which the electrolyte flows while forming a turbulent flow from the top to the bottom. Alternatively, a diluent gas ejector is provided at a position above the flow region upstream of the screw, and due to the formation of the turbulence and the collision of the ejected diluent gas with the pump or screw, A diluted hydrogen gas supply device characterized by realizing miniaturization of bubbles ,
(3) Any one of (1) and (2) above, wherein the end of the rotating impeller or screw of the pump that is farthest from the central axis of rotation is close to the inner wall of the flow pipe. a diluted hydrogen gas supply device of
consists of

Basic configurations (1), (2), and (3) are based on the premise that the diluent gas bubbles ejected into the flow pipe flow from the upper side to the lower side in the flow pipe.

To explain the above premise in detail, when the density of the electrolyte is ρ and the volume of the bubbles is V, the buoyancy generated in the bubbles of the diluent gas is ρVg. (However, g is a mass constant).

On the other hand, when the flow velocity of the electrolyte in the flow pipe is v, the dynamic pressure due to the flow is ρv ² /2.

Therefore, when the radius of the spherical bubble formed by flowing into the flow pipe is R, the maximum area of the spherical bubble is πR ² , so (ρv ² /2) × πR ² > ρVg By setting the flow velocity v so that the above holds true, the bubbles do not float but flow from the upper side to the lower side in order, and the above premise can be realized.
It should be noted that the bubbles usually form a spherical shape in order to form the minimum surface energy in the same volume.

In the basic configurations (1), (2), and (3) based on these premises, when bubbles of diluent gas flow in the flow pipe, the bubbles inevitably move the impeller. It is clearly smaller than the ejected stage due to collisions with the pump or screw with which it is mounted and also due to the turbulence created by said pump or said screw.

In particular, as in basic configuration (3), when the end of the rotating impeller or screw of the pump that is farthest from the central axis of rotation is close to the inner wall of the flow pipe, the collisions and the air bubbles The degree of turbulent flow formation can be promoted, and the miniaturization can be further promoted.

Such miniaturization makes it possible to sufficiently improve the dust trapping rate in the bubbles, that is, the probability of separation in the electrolytic solution, compared to the case of simply raising ejected bubbles as in Patent Document 1. can.

Moreover, in the case of Patent Document 1, a check valve is required to prevent the electrolyte from flowing into the lower side when the diluent gas is ejected (discharged) from the lower side of the negative electrode portion (cathode chamber). Although essential, in the basic configurations (1), (2), and (3), a diluent gas ejector is provided at the upper position of the flow pipe where the electrolytic solution flows in the direction away from the negative electrode. Therefore, no check valve is required.

1 is a partial side cross-sectional view showing the configuration of Example 1, in which (a) shows that the upper end of the inlet of the flow pipe coincides with the position of the upper horizontal surface of the electrolytic solution, and the lower end of the outlet of the flow pipe is the negative electrode; (b) shows the case where the upper end is close to the position of the horizontal surface from below and the lower end is close to the position of the bottom of the negative electrode from above indicate the case. FIG. 10 is a partial side cross-sectional view showing the configuration of the negative electrode portion and the screw of Example 2; FIG. 11 is a partial side cross-sectional view showing the configuration of Example 3, where (a) shows the case of basic configuration (1) and (b) shows the case of basic configuration (2). FIG. 2 is a side cross-sectional view for explaining basic configurations (1) and (2), in which (a) shows a case in which a pump equipped with an impeller is adopted in the flow pipe and dilution gas ejector of basic configuration (1); and (b) shows a case where a screw is adopted in the flow pipe and diluent gas ejector of the basic configuration (2). FIG. 11 is a partial side view of an embodiment of a flow pipe, (a) showing an embodiment in which the flow pipe forms two sides of a triangle and (b) shows an embodiment in which the flow pipe forms three sides of a rectangle. (c) shows an embodiment in which the flow pipe forms a curved shape sequentially from top to bottom. In addition, illustration of a diluent gas ejector provided above the flow pipe and a pump or screw for realizing the flow of the electrolytic solution is omitted. FIG. 10 is a partial side cross-sectional view showing an embodiment in which the pump or screw drive source for the flow pipe doubles as the pump drive source in the diluent gas ejector. FIG. 4 is a partial side cross-sectional view showing an embodiment in which an impeller that is rotated by the flow of electrolyte is provided in the flow pipe, and the rotation of the impeller is transmitted to the screw installed in the diluent gas ejector. The flow pipe is further protruded into the electrolytic cell from the inner wall where the flow pipe protrudes from the lower side, the discharge port of the electrolytic solution is in a state close to the negative electrode, and the electrolytic solution containing the diluent gas is placed on the negative electrode. FIG. 4 is a partial side cross-sectional view showing the embodiment impinging on the . In addition, the arrows on both the upper and lower sides in the electrolytic cell indicate the situation where the electrolytic solution is scattered after colliding with the negative electrode. Furthermore, illustration of a diluent gas ejector provided above the flow pipe and a pump or screw for realizing the flow of the electrolyte is omitted. The flow pipe is further projected into the electrolytic cell from the inner wall where the flow pipe is projected from the lower side, and the outlet of the electrolytic solution is positioned close to the bottom of the electrolytic cell near the negative electrode, and the diluent gas FIG. 11 is a partial side cross-sectional view showing an embodiment in which an electrolyte comprising impinging the bottom; An upward arrow in the electrolytic cell indicates a state in which the electrolytic solution is scattered after colliding with the bottom of the electrolytic cell. Furthermore, illustration of a diluent gas ejector provided above the flow pipe and a pump or screw for realizing the flow of the electrolyte is omitted.

The basic configuration (1) of the present invention, as shown in FIG. and one or both of the negative electrode portion and the positive electrode portion are mutually provided with an electrolytic solution supply portion 10, and hydrogen gas and oxygen gas outlets are provided on the upper sides of the negative electrode portion and the positive electrode portion, respectively. A pump 21 equipped with an impeller or a screw 21 is operated from two inner walls of the upper and lower parts of the chamber to project a flow pipe 2 through which the electrolytic solution W flows from the upper side to the lower side while forming a turbulent flow. Among the positions in the pipe 2, the diluent gas ejector 3 is positioned above the region where the electrolytic solution W flows away from the negative electrode 11 and upstream of the pump 21 or the screw 21. The diluted hydrogen gas supply device is characterized in that miniaturization of bubbles is realized by the formation of the turbulent flow and the collision of the jetted dilution gas with the pump 21 or the screw 21 .
FIG. 4A shows the case where both the negative electrode portion and the positive electrode portion are provided with the electrolyte solution supply portion 10, but as long as the electrolyte solution W can permeate through the diaphragm 13, the negative electrode portion or the positive electrode portion A configuration in which the electrolytic solution supply unit 10 is provided in either one of the above can also be adopted.

The basic configuration (2) of the present invention is, as shown in FIG. A flow pipe 2 through which the electrolyte W flows from the upper and lower inner walls of the electrolytic cell 1 near the negative electrode 11 while forming a turbulent flow from the upper side to the lower side by the operation of the pump 21 or the screw 21 equipped with an impeller. , and is positioned above the region in which the electrolytic solution W flows away from the negative electrode 11 and upstream of the pump 21 or the screw 21 among the positions in the flow pipe 2. Diluted hydrogen gas characterized by comprising a diluted gas ejector 3 and realizing miniaturization of bubbles due to the formation of the turbulent flow and the collision of the ejected diluted gas with the pump 21 or the screw 21. It is a feeding device.
In the case of the basic configuration (2), since the electrolytic cell 1 is not separated into a positive electrode portion and a negative electrode portion, there is originally only one electrolytic solution supply portion 10 .

The basic configurations (1), (2), and (3) are designed so that the flow pressure ρv ² /2×maximum bubble area πR ² due to the flow of the electrolyte W in the flow pipe 2 is greater than the buoyancy ρgV of the diluent. In addition, it is technically premised to set the flow velocity v in the flow pipe 2, and furthermore, when the diluent gas bubbles flow in the flow pipe 2, the pump 21 or the screw 21 by the rotating impeller Regarding the collision and the turbulence created by the pump 21 or the screw 21, the size of the bubbles can be reduced, and thus the dust in the bubbles can be captured well, that is, the separation in the electrolyte W can be improved. , as explained in the section of the effect of the invention.

Considering the collision and the formation of turbulent flow, in the basic configuration (3), as shown in FIGS. When the end forming the maximum distance is close to the inner wall of the flow pipe 2, the degree of collision and formation of turbulent flow can be set large, and thus the miniaturization can be promoted, and in this respect is also as described in the section on effects.

Normally, air is used as the diluent gas, but the amount of hydrogen gas generated by electrolysis is adjusted by setting the current value flowing through the positive electrode 12 and the negative electrode 11, while the diluent gas jetted into the flow pipe 2 It is quite possible to set the concentration of the biologically diluted hydrogen gas to 0.1 to 18 vol % by adjusting the amount of .

On the other hand, it is naturally possible to adjust the concentration of hydrogen gas after adopting oxygen generated by electrolysis or a mixed gas of the oxygen and air as the diluent gas.

As for the flow pipes 2 of the basic configurations (1), (2), and (3), various shapes can be adopted along the vertical direction.

Specifically, an embodiment characterized in that the flow pipe 2 vertically forms two sides of a triangle as shown in FIG. 5(a), or a rectangular shape as shown in FIG. Embodiments can be employed that are characterized by forming three sides of .

In these embodiments, the diluent gas bubbles collide with the inner wall of the flow pipe 2 in the areas forming the corners of the triangle and the rectangle, thereby forming a turbulent flow of bubbles and reducing the size of the bubbles. can sufficiently promote a good dust trapping rate, that is, a good separation in the electrolytic solution W.

Furthermore, as shown in FIG. 5(c), it is possible to adopt an embodiment characterized in that the flow pipe 2 forms a curved shape sequentially in the vertical direction.

In the above embodiment, when the bubbles of the diluent gas flow through the curved flow pipe 2, they collide with the curved wall, resulting in further It is possible to promote miniaturization and, in turn, further promote good separation in the electrolytic solution W.

In the basic configurations (1), (2), and (3), as shown in FIGS. 4A and 4B, the flow pipe 2 includes one or more mesh filters 5, and Embodiments can be employed in which the unit area of the mesh is smaller than the maximum cross-sectional area of the bubbles formed by the diluent gas ejector 3 .

By providing the mesh-like filter 5 in the flow pipe 2, the diluent gas bubbles that collide with the mesh unit are further reduced in size, and a good dust collection rate, that is, a good separation in the electrolytic solution W is promoted. can be done.
As for the shape of the mesh unit, a regular hexagonal shape or a square shape is often adopted as in the case of a normal mesh.
However, the area of the mesh unit must be larger than the average particle size of the dust, but smaller than the maximum cross-sectional area of the bubbles in the jetting stage. often adopted.

The pump 21 or the screw 21 operating in the flow pipe 2 of the basic configurations (1), (2) and (3) naturally requires the drive source 210 .

In such a case, as shown in FIG. When adopting an embodiment characterized by combining Pump 31 or screw 31 can be operated simultaneously.
6 shows a case where a pump 31 having an impeller is employed in the diluent gas ejector 3. As shown in FIG.

Furthermore, as shown in FIG. 7, an impeller 4 is installed in the flow pipe 2 and rotated by the flow of the electrolytic solution W, and the rotation of the impeller 4 is operated by the dilution gas ejector 3. In the case of adopting an embodiment characterized by transmitting to the pump 31 or the screw 31, the pump 31 or the screw 31 for ejecting the dilution gas does not require the driving source 310 to flow the electrolytic solution The kinetic energy of W can operate the pump 31 or the screw 31 for jetting the dilution gas.
Incidentally, FIG. 7 shows a case where the screw 31 is adopted in the diluent gas ejector 3 .

In FIGS. 4A and 4B, plate-shaped negative electrodes 11 and positive electrodes 12 are employed, but plate-shaped electrodes are used as the electrodes of the basic configurations (1), (2), and (3). It is not limited.

For example, a cylindrical negative electrode 11 is installed outside a cylindrical electrolytic cell 1, a flow pipe 2 is protruded outside the electrolytic cell 1, and a cylindrical positive electrode 12 is concentrically arranged inside the electrolytic cell 1. In the case of the basic configuration (1), an embodiment in which a cylindrical diaphragm 13 is installed concentrically between both (however, the shapes of each electrode and diaphragm are not shown because they are self-explanatory), And in the case of the basic configuration (2), an embodiment in which the diaphragm is not installed (similarly, it is not shown because the shape of each electrode is self-explanatory) can be adopted.

In the basic configurations (1), (2), and (3), as shown in FIG. 1, the discharge port of the electrolytic solution W is positioned close to the negative electrode 11, and the electrolytic solution W containing the diluent gas collides with the negative electrode 11. can be done.

In the case of such an embodiment, by colliding the diluent gas bubbles with the negative electrode 11, miniaturization can be promoted, and good separation in the electrolytic solution W can be promoted.

Moreover, in the case of the above embodiment, the diluted hydrogen gas in which the hydrogen gas generated from the surface of the negative electrode 11 and the diluted gas are mixed in the electrolytic solution W can be secured.

In the basic configurations (1), (2), and (3), as shown in FIG. 1, the discharge port of the electrolytic solution W is positioned close to the bottom near the negative electrode 11, and the electrolytic solution W containing the diluent gas collides with the bottom. can be adopted.

In the case of the above-described embodiment, the diluent gas bubbles collide with the bottom of the electrolytic cell 1, thereby promoting the miniaturization of the bubbles and, in turn, promoting good separation in the electrolytic solution W.

As the electrolyzed water of the present invention, aqueous solutions used for normal electrolysis, namely purified water, cation water such as sodium ion water, potassium ion water, calcium ion water, magnesium ion water, and sulfate ion, hydrochloric acid ion, etc. Anion water can be employed.

As the diaphragm 13 of the basic configuration (1) through which the electrolytic solution W can permeate, for example, a nonwoven fabric, a porous membrane, a three-dimensional mesh, or the like can be employed.

Examples will be described below.

In the first embodiment, in the basic configurations (1), (2), and (3), as shown in FIGS. The lower end of the outlet of the electrolytic solution W in the flow pipe 2 coincides with the position of the upper horizontal plane or approaches that position from below, while the lower end of the outlet of the electrolyte W in the flow pipe 2 coincides with the position of the bottom of the negative electrode portion or approaches that position from above. It is characterized by

Due to the above characteristics, in the case of Example 1, the vertical distance of the flow pipe 2 and the distance in which the bubbles rise in the electrolytic bath 1 are set large so that the bubbles of the diluent gas come into contact with the electrolytic solution W. The time is increased and as a result good dust trapping efficiency, ie good separation in the electrolyte W can be improved.

In the second embodiment, in the basic configurations (1), (2), and (3), as shown in FIG. It is characterized by arranging a screw 14 that locally flows from the bottom to the bottom.

Due to such features, in the case of Example 2, the reverse flow locally formed in the electrolytic cell 1 forms a turbulent flow of bubbles of the diluent gas, miniaturizes the bubbles, and furthermore Good separation in W can be further promoted.

In Example 3, as shown in FIGS. 3A and 3B, apart from the flow pipe 2 of the basic configurations (1) and (2), two A flow pipe 2 in which the electrolytic solution W flows from the bottom to the top while forming a turbulent flow is projected from the inner wall of the flow pipe 2 by the operation of the pump 21 or the screw 21 equipped with an impeller. , the diluent gas ejector 3 is provided at a position above the region where the electrolytic solution W flows away from the positive electrode 12 and upstream of the pump 21 or the screw 21 , and the turbulent flow and the collision of the jetted diluent gas with the pump 21 or the screw 21, miniaturization of bubbles is realized .

Due to such features, in the third embodiment, diluted oxygen gas is secured, and hydrogen gas diluted with oxygen and air is secured by mixing the diluted hydrogen gas and the diluted oxygen gas. can be done.

The present invention, which is based on basic configurations (1), (2), and (3), forms a turbulent flow of diluent gas bubbles flowing through a flow pipe on the side close to the negative electrode. It is epoch-making in that it is possible to reduce the size and, in turn, promote good separation of the electrolytic solution, and to ensure extremely clean diluted hydrogen gas, and its application range is wide.

1 electrolytic cell 10 electrolytic solution supply 11 negative electrode 12 positive electrode 13 diaphragm 14 screw of example 2 operating in the electrolytic cell 2 flow pipe 21 pump or screw with flow pipe impeller 210 drive of said pump or screw Source 3 Diluent gas ejector 31 Diluent gas ejector pump or screw 310 Drive source for said pump 4 Impeller in the flow pipe transmitting rotation to the impeller or screw in the dilution gas ejector 5 Filter W Electrolyte

Claims (13)

A negative electrode portion having a negative electrode and a positive electrode portion having a positive electrode are separated by a diaphragm permeable to an electrolytic solution, and either one or both of the negative electrode portion and the positive electrode portion each have an electrolytic solution supply portion. , in an electrolytic cell having hydrogen gas and oxygen gas outlets on the upper side of the negative electrode portion and the positive electrode portion, respectively, the electrolytic solution is discharged from the upper and lower inner walls of the negative electrode portion by the operation of a pump or screw equipped with an impeller. A flow pipe that flows while forming a turbulent flow is protruded from the bottom of the flow pipe, and the electrolytic solution flows in a direction away from the negative electrode and upstream of the pump or screw at each position in the flow pipe. A diluent gas ejector is provided at a position above the region where the A diluted hydrogen gas supply device characterized by: In an electrolytic cell comprising a negative electrode and a positive electrode arranged at a predetermined interval and an electrolytic solution supply part, a pump or a screw equipped with an impeller is operated from two upper and lower inner walls of the electrolytic cell near the negative electrode. A flow pipe is protruded through which the electrolyte flows while forming a turbulent flow from the top to the bottom, and the electrolyte is away from the negative electrode and from the pump or screw at each position in the flow pipe. is equipped with a diluent gas ejector at a position above the region where the gas is flowing on the upstream side , and due to the formation of the turbulence and the collision of the ejected diluent gas with the pump or screw, the small size of the bubbles A diluted hydrogen gas supply device characterized by realizing 3. Dilution according to any one of claims 1 and 2, characterized in that the end of the rotating impeller or screw of the pump which is farthest from the central axis of rotation is close to the inner wall of the flow pipe. Hydrogen gas supply device. 4. The diluted hydrogen gas supply device according to any one of claims 1, 2 and 3, wherein the flow pipe forms two sides of a triangle in the vertical direction, or forms three sides of a rectangle. 4. The diluted hydrogen gas supply apparatus according to any one of claims 1, 2, and 3, wherein the flow pipe forms a sequentially curved shape in the vertical direction. 1. The flow pipe is provided with one or more mesh filters, and the unit area of the mesh is smaller than the maximum cross-sectional area of the bubbles formed by the diluent gas ejector. 6. The diluted hydrogen gas supply device according to any one of 2, 3, 4 and 5. Claims 1, 2, and 3, characterized in that the drive source for the pump or screw in the flow pipe also serves as the drive source for the pump or screw equipped with an impeller operating in the diluent gas ejector. 7. The diluted hydrogen gas supply device according to any one of 4, 5 and 6. The flow pipe is provided with an impeller that rotates due to the flow of the electrolyte, and the rotation of the impeller is transmitted to the pump or screw equipped with the impeller operating in the diluent gas ejector. 7. The diluted hydrogen gas supply device according to any one of Items 1, 2, 3, 4, 5 and 6. The flow pipe is further projected into the electrolytic cell from the inner wall of the electrolytic cell where the flow pipe is projected from the lower side, the outlet of the electrolytic solution is in a state close to the negative electrode, and the electrolysis containing the diluent gas. 9. The diluted hydrogen gas supply device according to claim 1, wherein the liquid collides with the negative electrode. From the inner wall of the electrolytic cell projecting from the lower side of the flow pipe, the flow pipe is further projected into the electrolytic cell, and the discharge port of the electrolytic solution is in a state close to the bottom of the electrolytic cell near the negative electrode, 9. The diluted hydrogen gas supply device according to claim 1, wherein the electrolytic solution containing the diluted gas collides with the bottom. . The upper end of the electrolyte inlet in the flow pipe coincides with the position of the upper horizontal surface of the electrolyte or is close to the position from below, while the lower end of the electrolyte outlet in the flow pipe is located at the bottom of the negative electrode part. 11. The dilution hydrogen according to any one of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10, which is the same as the position or close to the position from above. gas supply. In the electrolytic cell, by arranging a screw that locally forms a reverse flow of the electrolytic solution from the upper side to the lower side at a position closer to the negative electrode than the positive electrode , turbulent flow of bubbles of the diluent gas is formed, and the bubbles any one of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11, characterized by promoting miniaturization of the battery and further separation of dust in the electrolytic solution. 3. The diluted hydrogen gas supply device according to . In addition to the flow pipes of claims 1 and 2, the electrolytic solution is turbulent from the bottom to the top by the operation of pumps or screws equipped with impellers from the inner walls at two locations on the side closer to the positive electrode than the negative electrode. A flow pipe that flows while forming a flow is protruded, and among the positions in the flow pipe, the electrolytic solution is in the direction away from the negative electrode and in the region where it flows upstream of the pump or screw. A diluent gas ejector is provided in an upper position to achieve bubble miniaturization due to the formation of the turbulent flow and the collision of the ejected diluent gas with the pump or screw. 13. The diluted hydrogen gas supply device according to any one of 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and 12.

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