JP2003080047A - Hydrogen dissolving apparatus and part for hydrogen dissolving apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hydrogen dissolving apparatus in which hydrogen is dissolved in liquid such as water, methanol or ethanol to obtain hydrogen dissolved liquid containing the large quantity of dissolved hydrogen with a simple structure at a low cost and a part for the hydrogen dissolving apparatus. SOLUTION: Hydrogen dissolving efficiency is improved by arranging a columnar material inside a pipe line 2 through which liquid flows to form the flow of the liquid into a complicated turbulent flow or turbulent voltex. A plurality of columnar materials are spirally arranged in the pipe line 2 to form spiral voltex in the flow passage of the liquid in the pipe line 2 to form further complicated turbulent flow to improve the hydrogen dissolving efficiency. The hydrogen dissolving part composed of a side wall part and the columnar materials is easily provided to enable to arrange the columnar materials in the pipe line 2.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a hydrogen-dissolving device for dissolving hydrogen in a liquid serving as a medium.

[0002]

2. Description of the Related Art Conventionally, various hydrogen storage devices have been proposed. For example, a plurality of double-cylindrical tanks are used, a hydrogen storage material is housed in an inner cylinder, and a hydrogen passage is provided around the axis of the hydrogen storage material. , There are passages between the outer cylinders for heating fluid and cooling fluid.

[0003]

However, various conventional hydrogen storage devices are mainly those which store hydrogen by storing hydrogen in a hydrogen storage alloy, and not only the materials used are expensive but also the mechanism is It lacks industrial practicality in the sense that it becomes complicated and causes an increase in weight and cost, and as a result, none of them has been put into practical use.

The present invention has been made in view of the above-mentioned prior art. For example, hydrogen can be dissolved and stored in a liquid such as water, methanol, ethanol, etc., which has a simple structure, is inexpensive, and dissolves hydrogen. An object of the present invention is to provide a hydrogen-dissolving device and a part for the hydrogen-dissolving device, which can obtain a hydrogen-dissolved liquid containing a large amount of hydrogen.

[0005]

In the hydrogen-dissolving apparatus of the present invention for solving the above-mentioned problems, a columnar object is arranged inside a pipe through which a liquid flows, and the columnar object is arranged from the upstream side of the liquid flow. It is characterized in that it is set so as to change sequentially toward the downstream side. As a result, when the liquid flows in the pipe, the liquid flows as a turbulent flow instead of a laminar flow, so that the efficiency of hydrogen dissolution is improved. In particular, with the configuration of the present invention, the liquid flow path in the flow system pipe in which the columnar object is arranged draws a spiral vortex, and the turbulent flow of the liquid is further complicated and the efficiency of hydrogen dissolution is improved. The material of the columnar object is not particularly limited, and ceramics are conveniently used from the viewpoints of corrosion resistance, heat resistance, etc., while stainless steel, aluminum alloys, etc., from the viewpoints of workability and strength. The metal materials are conveniently applied. Further, as the above liquid, water, methanol, ethanol or the like can be applied and can be appropriately selected in relation to the intended use of the water-dissolved liquid.

Further, the hydrogen-dissolving apparatus of the present invention for solving the above-mentioned problems is characterized in that a cross-sectional area of the upstream side portion of the columnar body in the liquid flow direction is smaller than that of the downstream side portion so as to block the flow. To do. As a result, the flow of liquid behind the columnar object becomes a turbulent vortex, and the efficiency of hydrogen dissolution is improved.

The hydrogen-dissolving apparatus component of the present invention for solving the above-mentioned problems comprises a side wall portion which is a pipe having a shape matching the inner wall shape of the pipe, and a columnar object which is fixedly arranged so as to penetrate the inside of the side wall portion. . As a result, it becomes easy to dispose the columnar object in the liquid distribution pipe, and the hydrogen dissolver having excellent hydrogen dissolving efficiency can be manufactured at low cost.

Further, the hydrogen-dissolving apparatus component of the present invention for solving the above-mentioned problems is characterized in that a connecting engagement portion is formed in which the side wall upper and lower cross-sections are formed in a wave shape. Accordingly, when the hydrogen-dissolved device parts are connected and arranged in series in the distribution system pipe, it becomes easy to arrange so that the orientation of the columnar object gradually changes.

Further, the hydrogen-dissolving apparatus component of the present invention for solving the above-mentioned problems is characterized in that the columnar object has a shape in which the upstream portion of the liquid is smaller in cross-sectional area for blocking the flow than the downstream portion. As a result, the flow of liquid behind the columnar object becomes a turbulent vortex, and the efficiency of hydrogen dissolution is improved.

In the hydrogen-dissolving apparatus of the present invention for solving the above-mentioned problems, the hydrogen-dissolving apparatus parts are arranged so as to be connected in series outside the pipe through which the liquid flows and inside the portion where the hydrogen is dissolved. And Accordingly, even if the liquid flow pipe is relatively long, the turbulent flow of the liquid becomes complicated by arranging a large number of the hydrogen-dissolving device parts, and the efficiency of hydrogen dissolution is improved.

In the hydrogen-dissolving apparatus of the present invention for solving the above-mentioned problems, the hydrogen-dissolving apparatus parts are arranged in series connected to the outside of the pipe through which the liquid flows and the inside of the section where the hydrogen is dissolved, to form a columnar object. Is arranged so that the direction of is changed sequentially from the upstream direction of the liquid. As a result, the flow path of the liquid in the flow system pipe in which the hydrogen-dissolving device parts are arranged flows in a spiral vortex, and the turbulent flow of the liquid is further complicated and the hydrogen-dissolving efficiency is improved.

Further, in the hydrogen-dissolving apparatus of the present invention for solving the above-mentioned problems, there is provided a main body of an injecting device of a porous cylindrical body in the hydrogen-dissolving treatment pipe, and a hydrogen gas connected to the inside of the main body of the injecting device so as to be ventilated. It is characterized in that a hydrogen gas injection device composed of a feed pipe is attached. By applying the porous tubular body as a hydrogen injecting device in this way, hydrogen can be supplied so as to be easily dissolved in the liquid. The material of the porous tubular body is not particularly limited, and ceramics are conveniently used from the viewpoint of corrosion resistance, heat resistance, etc., while stainless steel, aluminum alloys from the viewpoint of workability, strength, etc. Metal materials such as are conveniently applied.

Further, in the hydrogen-dissolving apparatus of the present invention for solving the above-mentioned problems, a through-hole portion is provided in a predetermined portion of the hydrogen-dissolving treatment pipe, and the porous cylinder is inserted into and attached to the through-hole portion. It is characterized by comprising a hydrogen gas injecting device comprising a body of the injecting device in the form of a body and a hydrogen gas feed pipe connected to the inside of the injecting device body so as to be able to ventilate. According to such a hydrogen-dissolving apparatus of the present invention, since hydrogen is supplied to the liquid to be dissolved by hydrogen through the porous cylindrical body arranged in the through-hole portion provided in the hydrogen-dissolving treatment pipe, it is extremely high. Hydrogen can be efficiently supplied so as to be easily dissolved in the liquid.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an outline of a hydrogen-dissolving apparatus according to an embodiment of the present invention, in which a hydrogen-dissolved liquid storage chamber 1 which is a container for storing a liquid for performing a hydrogen-dissolving treatment and a hydrogen-dissolved liquid storage chamber 1 are provided. It has a hydrogen-dissolved treatment pipe 2 which is connected and serves as a path for the liquid to circulate, and a circulation pump unit 3 which circulates the liquid in the hydrogen-dissolved treatment pipe 2. A hydrogen gas injection device 4 is connected to the hydrogen-dissolved treatment pipe 2, and a stirring unit 5 accommodating a hydrogen-dissolved device component 6 shown in FIGS. 2 to 5 is further provided.

The shape and capacity of the hydrogen-dissolved liquid storage chamber 1 are determined according to the application. The circulation pump unit 3 is a liquid pressure-feeding device connected to the hydrogen-dissolved treatment pipe 2, and is a device for circulating the liquid inside the hydrogen-dissolved treatment pipe 2. An appropriate pressure-feeding method is used depending on various characteristics such as the characteristics of the liquid, the amount of pressure-feeding, and the quietness required for the entire hydrogen-dissolving device.

2 to 5 show a hydrogen-dissolving apparatus component 6 installed inside the hydrogen-dissolving treatment pipe 2. Although hydrogen-free sintered ceramics are used in the present embodiment, it is desirable that the material has excellent thermal conductivity, or the quality of the liquid is changed for the purpose of preventing adhesion of dirt inside the hydrogen-dissolved treatment pipe 2. The material to be adjusted is desirable.

FIG. 3 shows the hydrogen-dissolved device part shown in FIG.
3 is a sectional view taken along line III-III, FIG. 4 is a schematic sectional view taken along line IV-IV of the hydrogen-dissolving device component shown in FIG. 2, and FIG. 5 is a partially cutaway perspective view of the hydrogen-dissolving device component shown in FIG. Is. The same reference numerals as those shown in FIG. 2 are given to the components having the same configuration.

The side wall portion 7 is a plate having a side surface of a cylinder. It is desirable that the material has excellent thermal conductivity and sufficient corrosion resistance. The columnar object 8 is a semicylindrical part and is fixedly arranged so as to penetrate the inside of the side wall portion 7. Here, the shape is semi-cylindrical,
The cross section may be a smooth curve such as an egg shape or may be a wedge shape, but it is desirable to take a shape that does not give a large resistance when the liquid flows. The coupling engagement portion 9 is a corrugated cut surface formed in the upper and lower cross-sections of the side wall portion 7 and formed by a series of semi-circular convex portions and concave portions. The allowable wave shapes are wedge-shaped continuation and rectangular continuation,
It suffices that it is possible to shift the direction of the columnar object when connecting a plurality of hydrogen-dissolved device parts in series, and connect them.

FIG. 6 shows the flow lines of the liquid when the hydrogen-dissolving device parts shown in FIG. 2 are arranged in the hydrogen-dissolving treatment pipe 2. The hydrogen-dissolved treatment pipe 2 is a hydrogen-dissolved device part designed to have a size that fits the inside diameter of the hydrogen-dissolved treatment pipe 2.
The liquid is placed inside so that the convex side of the columnar object 8 faces the liquid upstream direction, and the liquid is dissolved in hydrogen by flowing through the hydrogen-dissolved treatment pipe 2.

Next, the principle of hydrogen dissolution in the embodiment of the present invention will be described. The liquid circulates as a laminar flow in the circulation system pipe in which the hydrogen-dissolving device component of the present invention is not arranged, and in the liquid forming the laminar flow, heat exchange is performed between adjacent molecules. The liquid flowing as a laminar flow is the columnar object 8 in the hydrogen-dissolved device part.
The turbulent vortex 10 is generated in the wake of the columnar object 8 due to the turbulent flow. The turbulent vortex here is a vortex-like liquid flow that includes Karman vortices in hydrodynamics.Hydrogen dissolution in turbulent flow is smaller than that in laminar flow because the minute portion of the liquid diffuses due to irregular motion. Will also improve efficiency.

It is a well-known technique that the efficiency of hydrogen dissolution is improved by the turbulent flow, and even in the conventional technique, a device for increasing the contact efficiency between the liquid and the pipe by causing the turbulent flow has been made. However, in the present invention, the purpose of arranging the columnar object inside the distribution pipe is, of course, to form a turbulent flow, but it is considered to be more important than that. This is a phenomenon that causes the flow vortex 10.

A normal liquid has a cluster structure that is a large number of molecular groups when flowing through a flow path, and forms a flow in the state where a large number of molecular groups exist. For this reason, the heat conduction in the fluid is performed by the heat conduction between the molecule groups and the heat conduction between the molecules within the molecule group, and the heat conduction efficiency becomes low. However, it is considered that when the fluid becomes turbulent, this cluster structure is decomposed, and when the size of the molecular group becomes smaller, the total amount of heat conduction between molecules inside the molecule group is reduced, and the heat conduction efficiency is improved as a whole. By forming turbulent vortices, it is considered that the above-mentioned molecular group size is decomposed into smaller particles, and that only the thermal conduction between molecules is responsible for the thermal conduction. To reduce the decrease in thermal conductivity due to the cluster structure to the utmost limit. Will be possible.

FIG. 7 is a schematic view of the hydrogen-dissolved device parts according to the present invention arranged in series, and when the connecting engagement parts 9 are aligned, the direction of the columnar object 8 is viewed from the upstream direction of the liquid. This is a case where they are arranged counterclockwise by 45 degrees. Of course, the angle and the deviation direction can be appropriately selected.

FIG. 8 is a diagram showing how the liquid flows when the hydrogen-dissolved device parts are connected in series as shown in FIG. The two thick arrows in the figure show the rough flow of the liquid, and the spiral flow path 11 is drawn along the arrangement of the columnar objects 8. As a result, the liquid flow becomes a more complicated turbulent flow, and the efficiency of hydrogen dissolution is further improved. A swirl tube (torsion tape insertion tube) in which a twisted tape is inserted into a smooth tube to forcibly generate a spiral vortex in the flow in the tube is intended for the same effect.

FIG. 9 shows an embodiment of the hydrogen gas injection device 4. As shown in the figure, the hydrogen gas injection device 4 of the present embodiment is configured as a hydrogen gas injection pipe 4a that directly opens to the hydrogen-dissolved treatment pipe 2, and the hydrogen gas injection pipe 4 is
Hydrogen supplied via a is supplied to the liquid flowing in the hydrogen-dissolved treatment pipe 2 by the orifice effect.

FIG. 10 shows another embodiment of the hydrogen gas injection device 4. As shown in the figure, the hydrogen gas injection device 4b of this embodiment is directly attached to the hydrogen-dissolved treatment pipe 2. The hydrogen gas injector 4b comprises an injector main body 12 and a hydrogen gas feed pipe 13 connected to the injector main body 12, and the injector main body 12 is made of a porous ceramic cylinder. On the other hand, the hydrogen-dissolved treatment pipe 2 is provided with a through hole portion 14 at a predetermined portion thereof,
Side edge portions 15a and 15b are integrally formed with the hydrogen-dissolved treatment pipe 2 and project outwardly at both opening portions of the through hole portion 14.

The injection device body 12 has the through hole portion 14
And the cap nut 16 is screwed into the tip of the
As a result, the injection device body 12 is attached to the through hole portion 14. On the other hand, the coupling part 17 provided in the hydrogen gas supply pipe 13 is screwed into the screw part formed outside the side edge portion 15b to fix the hydrogen gas supply pipe 13 to the hydrogen-dissolved treatment pipe 2. The injection device body 12 is connected to the inside of the injection device body 12 so as to be ventilated, and at the same time, the injection device body 12 has
6 and the coupling part 1 provided in the hydrogen gas supply pipe 13
It is sandwiched between 7 and fixed to the hydrogen-dissolved treatment pipe 2.
Airtight seals 18a and 18b are arranged between the outside of the injection device main body 12 and the inside of the side edge portions 15a and 15b to keep the airtightness.

According to the hydrogen gas injecting device 4b of the above-described aspect, the hydrogen fed by the hydrogen gas feeding pipe 13 is supplied to the inside of the injecting device body 12 through the coupling portion 17, and the inside of the injecting device body 12 is supplied. Is maintained at a predetermined hydrogen pressure. The hydrogen thus stored inside the injection device main body 12 leaks from the inside of the injection device main body 12 of the porous ceramics to the outside, and is mixed into the liquid flowing inside the hydrogen-dissolved treatment pipe 2. The hydrogen mixed in the liquid flowing through the inside of the hydrogen-dissolved treatment pipe 2 as described above is efficiently converted into dissolved hydrogen in the liquid by the stirring unit 5, and the liquid is conveniently dissolved in hydrogen.

[0029]

By using the hydrogen-dissolving device and the parts for the hydrogen-dissolving device according to the present invention, it becomes possible to easily generate a complicated turbulent flow such as a turbulent vortex in the liquid flow system piping. Thus, it becomes possible to improve the hydrogen-dissolving efficiency and improve the hydrogen-dissolving capacity of the hydrogen-dissolving device.

Further, by providing the connecting meshing portion on the side wall portion, it becomes possible to arrange the hydrogen-dissolving apparatus parts of the present invention by connecting them in series in the distribution pipe, and to arrange the columnar objects at that time. By adjusting, the liquid flows while forming a spiral vortex, and the liquid becomes a more complicated turbulent flow, so that the hydrogen dissolution rate can be further improved.

[Brief description of drawings]

FIG. 1 is an overall schematic view of a hydrogen-dissolving device according to the present invention.

FIG. 2 is a cross-sectional view of a hydrogen-dissolved device component according to an embodiment of the present invention.

FIG. 3 is a sectional view taken along line III-III of the hydrogen-dissolved device component shown in FIG.

FIG. 4 is a schematic cross-sectional view taken along the line IV-IV of the hydrogen-dissolved device component shown in FIG.

5 is a partially cutaway perspective view of the hydrogen-dissolving device component shown in FIG.

FIG. 6 is an explanatory view showing the hydrogen-dissolved device parts and liquid streamlines arranged in the distribution system piping.

FIG. 7 is an explanatory diagram in which a plurality of hydrogen-dissolved device parts are arranged in series.

FIG. 8 is an explanatory diagram showing a liquid flow when a plurality of hydrogen-dissolving device parts are arranged in series.

FIG. 9 is a partial cross-sectional view showing one embodiment of a hydrogen gas injecting device applied to the hydrogen dissolving device of the present invention.

FIG. 10 is a cross-sectional view showing another embodiment of the hydrogen gas injection device applied to the hydrogen dissolving device of the present invention.

[Explanation of symbols]

1 ... Hydrogen-dissolved liquid storage chamber 2 ... Hydrogen dissolved treatment piping 3 ... Distribution pump section 7 ... Side wall 8: Columnar object 9: Connection meshing part 10 ... Turbulent vortex 11 ... spiral vortex flow path

Claims (9)

[Claims] 1. A columnar object is arranged inside a pipe through which a liquid flows, and the arrangement direction of the columnar object is set so as to sequentially change from the upstream side to the downstream side in which the liquid flows. Hydrogen dissolving device. 2. The hydrogen dissolving apparatus according to claim 1, wherein the upstream side portion of the columnar object in the liquid flow direction has a smaller cross-sectional area that blocks the flow than the downstream side portion. 3. A hydrogen-dissolving device part comprising a side wall part which is a pipe having a shape that matches the inner wall shape of the pipe, and a columnar object which is fixedly arranged so as to penetrate the inside of the side wall part. 4. The hydrogen-dissolving device component according to claim 3, wherein the side wall upper and lower cross-sections are formed with a wavy connecting meshing portion. 5. The hydrogen according to any one of claims 3 to 4, wherein the columnar object has a shape in which a cross-sectional area in which an upstream portion of the liquid blocks a flow is smaller than a downstream portion of the liquid. Dissolved device parts. 6. A hydrogen-dissolving device, wherein the hydrogen-dissolving device parts according to claim 5 are arranged in series connected to the outside of a pipe through which a liquid flows and the inside of a portion where hydrogen is dissolved. 7. The hydrogen-dissolving device component according to claim 5 is arranged in series outside the pipe through which the liquid flows and inside the portion where the hydrogen is dissolved, and the columnar object is oriented in the direction of the liquid. A hydrogen-dissolving device, which is arranged so as to change sequentially from the upstream direction. 8. A hydrogen gas injecting device comprising an injecting device main body of a porous tubular body and a hydrogen gas supply pipe connected to the inside of the injecting device main body so as to be able to be ventilated, is attached to the hydrogen dissolving treatment pipe. Item 2. The hydrogen-dissolving device according to item 1. 9. The hydrogen-dissolved treatment pipe is provided with a through-hole portion at a predetermined portion thereof, and a porous tubular body is inserted into the through-hole portion and is attached to the inside of the body. The hydrogen-dissolving device according to claim 1, further comprising a hydrogen gas injection device including a hydrogen gas supply pipe connected in a ventilable manner.