WO2008029525A1

WO2008029525A1 - Process and equipment for mass production of liquid containing gas dissolved therein by continuous pressure flowing method

Info

Publication number: WO2008029525A1
Application number: PCT/JP2007/054606
Authority: WO
Inventors: Wataru Murota
Original assignee: Ohta, Shigeo
Priority date: 2006-09-05
Filing date: 2007-03-02
Publication date: 2008-03-13

Abstract

The invention provides a process and equipment for producing a liquid containing a gas (such as hydrogen) dissolved therein in a supersaturated state or the like. Equipment of continuous pressure flowing type for producing a liquid containing a gas dissolved therein, which comprises a pipe for flowing a raw material liquid to a receiver for a liquid containing a gas dissolved therein, a pressurizing means provided at a site of the pipe for pressurizing the raw material liquid and thereby flowing it through the pipe, at least one gas-liquid mixing section provided at another site of the pipe in a state connected to a gas container through a gas feed pipe for mixing the liquid with a gas fed from the gas container, and at least one reactor section provided at another site of the pipe on the downstream side of the gas-liquid mixing section for keeping the pressure of the gas-liquid mixture formed in the gas-liquid mixing section and accelerating the dissolution of the gas in the liquid and in which a liquid containing a gas dissolved therein is continuously produced by flowing a liquid through the pipe under pressurizing.

Description

Mass production method of gas-dissolved liquid by continuous pressurized flow system and its production equipment

The present invention relates to a method for producing a gas-dissolved liquid containing a large amount of gas such as hydrogen and a production apparatus thereof suitable for mass production. Light

Background art

Rice field

Water containing oxygen and hydrogen is considered to be effective in promoting human health, and a method for producing a liquid in which a large amount of oxygen or hydrogen is dissolved in the liquid has been reported (see Patent Documents 1 to 3).

There is a method of dissolving a gas in a liquid such as water, and a method of dissolving a gas in a liquid by bringing a fine bubble gas into contact with the liquid under the atmosphere (bubble dissolution method). When a gas is brought into contact with a liquid, the gas dissolves in the liquid. At this time, if the contact area is increased, the dissolution rate increases. However, the amount of gas to be dissolved is limited to a certain amount in a saturated state and cannot be dissolved further. In addition, when the gas and the liquid in which the gas has already been dissolved are brought into contact with each other at atmospheric pressure, only the partial pressure of the gas in contact with the gas will be depleted. This gas cannot be dissolved.

On the other hand, there is a method in which a gas is brought into contact with a solution under high pressure (closed system high pressure holding manufacturing method). In this method, the gas dissolves in the solution according to Henry's law. Furthermore, at this time, the time required for dissolution can be shortened by reducing the force of atomizing the liquid or reducing the gas bubbles. When contacting gas with liquid in a closed system, multiple gases can be dissolved simultaneously by keeping the partial pressure of multiple gases at a certain level or higher. However, in order to maintain a high pressure, it is necessary to bring the gas and the solution into contact in an airtight container. In order to produce a gas-containing liquid by contacting gas in such a sealed container, the dissolution and recovery steps must be repeated. And the equipment is expensive because a pressure vessel must be used. Become. Therefore, it is not suitable for mass production. Also, when the pressure is suddenly changed from high pressure to atmospheric pressure, in most cases, the supersaturated gas is released instantly due to bumping.

On the other hand, there is also a production of a gas-containing liquid by a continuous flow system in which a liquid is continuously injected from one end into a pressure-resistant thin tube and the gas and the liquid are brought into contact with each other in the tube (open flow-type production method). However, since at least one end of the continuous flow system comes into contact with air under atmospheric pressure, the continuous flow system is an open system, and the inside of the continuous flow system cannot be maintained at a high pressure. Therefore, a larger amount of gas cannot be dissolved than when atmospheric pressure gas is brought into contact with the liquid. As described above, both the above-mentioned open-flow manufacturing method for mass production and the closed-system high-pressure holding production method that keeps the gas pressure at a high pressure in the closed system have drawbacks, and dissolved a large amount of gas. It is difficult to produce a large amount of liquid. In addition, the closed-system high-pressure holding manufacturing method needs to produce a gas-dissolved liquid completely in a closed system, whereas in the open-system flow-type manufacturing method, the liquid must be in contact with air at atmospheric pressure. Therefore, it was difficult to maintain a high pressure, and it was difficult to establish a method for producing a gas-dissolved liquid having the advantages of both methods.

Furthermore, there is a method of dissolving hydrogen or oxygen in a liquid by electrolysis. However, in this method, the liquid must contain an electrolyte, which is also unsuitable for mass production. '

Patent Document 1 Japanese Patent Application Laid-Open No. 8-56632

Patent Document 2 JP 2002-172317 A

Patent Document 3 Japanese Unexamined Patent Publication No. 2005-29694 Disclosure of Invention

An object of the present invention is to provide a method and an apparatus for producing a liquid in which a gas such as hydrogen containing a supersaturated state is dissolved.

The present inventors diligently studied a method for producing a gas-dissolved liquid that has the advantages of the above-described open-type flow-through production method and the closed-system high-pressure holding production method that keeps the gas pressure high in a closed system.

The inventors of the present application dissolved a gas in a liquid under high pressure by a closed system high pressure holding manufacturing method. The manufacturing equipment must be placed in a closed system so that it does not come into contact with the atmosphere. On the other hand, when a gas is dissolved in a liquid by an open-type flow-through manufacturing method, the pressure is high because of the open system. We examined the resolution of the contradiction that it was not possible to maintain the current level.

As a result, it was found that by bringing a gas such as oxygen or hydrogen under pressure directly into contact with a liquid under pressure flowing through a pipeline, the gas is efficiently and rapidly dissolved in the liquid. . That is, when a gas is mixed with a liquid and coexists with the liquid in the form of bubbles, a pressure is applied and the pressure is maintained, so that the liquid can flow even in an unclosed flow-type device. It has been found that a large amount of gas can be continuously dissolved in a liquid. .

The present inventors have further studied, and when the gas is mixed with the liquid and flows in the apparatus as a gas-liquid mixed phase flow, the action of the reactor unit is obtained by using a means called a reactor unit that inhibits the flow of the liquid. As a result, it was found that the pressure was maintained and the gas was efficiently dissolved in the liquid, and the present invention was completed.

That is, the present invention is as follows.

[1] A liquid flow line through which a liquid flows, the liquid flowing through the raw material liquid to a gas-dissolved liquid receiver,

Pressurizing means provided in the middle of the liquid circulation pipe, pressurizing means for pressurizing the raw material liquid to circulate through the circulation pipe;

At least one gas-liquid mixing part provided in the middle of the liquid circulation pipe, which is connected to the gas container via the gas supply pipe and is used for mixing the gas from the gas container with the liquid Liquid mixing section,

At least one reactor unit provided downstream of the gas-liquid mixing unit in the middle of the liquid circulation pipe, maintaining the pressure of the gas mixed liquid mixed in the gas-liquid mixing unit, A reactor section that promotes dissolution,

A continuous pressurized flow type gas-dissolving liquid manufacturing apparatus for continuously manufacturing a gas-dissolving liquid while pressurizing the liquid in a liquid circulation pipe.

[2] The continuous pressurized flow type gas-dissolving liquid production apparatus according to [1], wherein in the reactor section, the pressure applied to the liquid flowing through the reactor is gradually reduced. [3] The continuous pressurized flow type gas-dissolved liquid production apparatus according to [1] or [2], wherein the reactor part has a structure that partially obstructs the flow of the liquid.

[4] The reactor part has a structure that partially obstructs the flow of liquid selected from the group consisting of a fin structure, a notch structure, a protrusion structure, a plasting structure, and a groove structure, [3] Pressurized flow type gas dissolution liquid production equipment.

[5] The reactor unit is a static mixer, any one of [1] to [4]. The continuous pressurized flow type gas dissolved liquid production apparatus.

[6] The continuous pressurized flow type gas-dissolved liquid production apparatus according to any one of [1] to [5], wherein the gas-liquid mixing unit is an edger.

[7] The pressurizing means is a pressurizing pump, [;! ] The continuous pressurized flow type gas-dissolving liquid production apparatus according to any one of [6] to [6].

[8] The continuous pressurized flow type gas dissolved liquid production apparatus according to [7], wherein the pressurizing pump is a vortex pump, and is provided downstream of the gas-liquid mixing unit and upstream of the reactor unit.

[9] The continuous pressurized flow type gas-dissolved liquid production apparatus according to any one of [1] to [8], wherein the gas-liquid mixing unit and the reactor unit are directly connected.

[1 0] The continuous pressurized flow gas dissolved liquid production apparatus according to any one of [1] to [9], wherein the ratio of the length of the reactor section to the inner diameter of the tube is 10 or more.

111] The continuous pressurized flow type gas dissolving liquid production apparatus according to any one of [1] to [10], wherein the pressure applied to at least one of the raw material liquid and the gas dissolving liquid is equal to the atmospheric pressure and is an open system.

[1 2] Continuously pressurized flow-type gas-dissolved liquid production according to any one of [1] to [11], which has a plurality of gas-liquid mixing units and reactor units, and can dissolve a plurality of gases. apparatus.

[1 3] The liquid is selected from the group consisting of water, mineral water, tea, coffee, soft drink, juice, gel drink, cosmetics, shampoo and physiological saline, and the gas is a group consisting of hydrogen gas, oxygen gas and ozone gas The continuous pressurized flow type gas-dissolved liquid producing apparatus according to any one of [1] to [12], wherein the gas-containing liquid producing apparatus comprises any one of the gas selected from:

[14] A method for producing a gas-dissolved liquid by continuously dissolving a gas in a pressurized liquid flowing in a pipeline, including the following steps (1) to (3):

(1) a step of mixing the pressurized gas with the pressurized liquid flowing through the liquid circulation line; (2) A step of dissolving the gas in the liquid by maintaining the pressurized state of the obtained gas mixed liquid, and

(3) A step of returning the gas-dissolved liquid to normal pressure and recovering the gas-dissolved liquid.

[1 5] In the step (1), the pressurized liquid flowing through the liquid circulation pipe is pressurized by supplying a pressurized gas to the gas-liquid mixing section provided in the middle of the liquid pipe. [14] The method for producing a gas-dissolved liquid by continuously dissolving the gas in the pressurized liquid flowing in the pipe line, which is a step of mixing the pressurized gas with the liquid.

[16] In the step (2), the obtained gas mixed liquid is passed through a reactor section provided in the middle of the liquid circulation pipe and downstream of the gas-liquid mixing section. The process of dissolving the gas in the liquid by maintaining the pressurized state of the gas mixture liquid. The gas is continuously dissolved in the pressurized liquid flowing in the pipe line of [14] or [15]. A method for producing a gas-dissolved liquid by deciphering.

[1 7] The gas-liquid mixing part in the step (1) is an agitator, and by continuously dissolving the gas in the pressurized liquid flowing through the pipe line of [15] or [16], Gas dissolution A method for producing a liquid.

[18] The pressurized liquid flowing in the pipe line of any one of [15] to [17], wherein the reactor part in the step (2) has a structure that partially obstructs the flow of the liquid A method for producing a gas-dissolved liquid by continuously dissolving a gas.

[1 9] The reactor part in the step (2) has a structure that partially obstructs the flow of a liquid selected from the group consisting of a fin structure, a notch structure, a protrusion structure, a blast processing structure, and a groove structure. [19] A method for producing a gas-dissolved liquid by dissolving a gas continuously in a pressurized liquid flowing through a pipe line of ['18].

[20] The reactor in the step (2) is a static mixer, and by continuously dissolving the gas in the pressurized liquid flowing in any of the pipes of [16] to [19], A method for producing a gas-dissolved liquid.

[21] The pressurized liquid in the step (1) is pressurized by a pressure pump, and the gas is continuously dissolved in the pressurized liquid flowing through the pipe line of any one of [16] to [20] Thus, a method for producing a gas-dissolved liquid.

[22] In the reactor section, the pressure applied to the liquid flowing through the reactor By gradually lowering and returning the liquid in which the gas is dissolved to normal pressure, the gas is continuously dissolved in the pressurized liquid flowing through the pipe line of any one of [16] to [21]. A method for producing a dissolved liquid.

[23] Pressurized liquid flowing through the pipe line of any one of [16:] to [22], having a plurality of gas-liquid mixing parts and reactor parts, and capable of dissolving a plurality of gases A method for producing a gas-dissolving liquid by continuously dissolving a gas.

[24] In the gas-dissolving liquid, the gas is dissolved in a supersaturated state in the liquid, and the gas is continuously dissolved in the pressurized liquid flowing in the pipe line of any one of [14] to [23]. A method for producing a gas-dissolved liquid.

[25] Gas selected from the group consisting of water, mineral water, tea, coffee, soft drinks, juice and physiological saline, and gas selected from the group consisting of hydrogen gas, oxygen gas and ozone gas A method for producing a gas-dissolved liquid by continuously dissolving a gas in a pressurized liquid flowing through the pipe line of any one of [14] to [24].

This specification includes the contents described in the specification and / or drawings of Japanese Patent Application No. 2006-240723, which is the basis of the priority of the present application. Brief Description of Drawings

FIG. 1A is a diagram showing an example of a continuous pressurized flow type gas-dissolved liquid production apparatus of the present invention.

FIG. 1B is a diagram showing an example of a continuous pressurized flow type gas-dissolved liquid production apparatus of the present invention.

FIG. 1C is a view showing an example of a continuous pressurized flow type gas-dissolved liquid production apparatus of the present invention.

FIG. 2 is a cross-sectional view of an ejector used as a gas-liquid mixing part of the continuous pressurized flow type gas-dissolved liquid production apparatus of the present invention.

FIG. 3 is a view showing an example of a gas-liquid mixing unit of the continuous pressurized flow type gas-dissolved liquid production apparatus of the present invention.

Fig. 4 shows an example of the gas-liquid mixing part of the continuous pressurized flow type gas-dissolved liquid production apparatus of the present invention. FIG.

Fig. 5 is a diagram showing a static mixer used as a reactor part of the continuous pressurized flow type gas dissolved liquid production apparatus of the present invention, Fig. 5A is a cross-sectional view of the static mixer, and Fig. 5B is a right twist element. Fig. 5 C is a view of Fig. 5 B rotated 90 °, Fig. 5 D is a front view of the left twist element, and Fig. 5 E is a view of Fig. 5 D rotated 90 °. FIG. 5F is a diagram showing an element provided with a protruding structure.

FIG. 6 is a diagram showing an example of a continuous pressurized flow type gas dissolving liquid production apparatus of the present invention capable of dissolving a plurality of gases in a liquid.

FIG. 7 is a diagram showing an example of a continuous pressurized flow type gas dissolving liquid production apparatus of the present invention capable of dissolving a plurality of gases in a liquid.

FIG. 8 is a view showing the continuous pressurized flow type gas dissolved liquid production apparatus of the present invention used in Example 1. FIG. '

FIG. 9 is a flowchart showing the continuous pressurized flow type gas-dissolved liquid production apparatus of the present invention used in Example 4.

Explanation of symbols

1 1 Raw material liquid

1 2 Raw material liquid container

1 3 Pressure pump

1 4 Liquid distribution tubule (liquid supply pipe)

1 5 Gas cylinder

1 6 Noku Norev

1 7 Pressure gauge

1 8 Gas supply piping

1 9 Liquid distribution tube (Liquid recovery pipe)

2 0 Valve

2 1 Raw material liquid container (Gas dissolved liquid receiver)

2 2 Raw material liquid (gas dissolved liquid) 23 Pressure pump

24 Liquid distribution tubule (Liquid supply pipe) ''

25 Gas cylinder

26 Valve

27 Pressure gauge

28 Gas supply piping

29 Liquid flow tube (Gas dissolved liquid recovery pipe)

30 valves

3 1 Gas dissolved liquid receiver

32 Gas dissolved liquid

3 5 A, 35 B Gas-liquid mixing section

36 A, 36 B Liquid inlet for gas-liquid mixing section

3 7A, 3 7 B Gas introduction to gas-liquid mixing section

3 8A, 38 B Gas mixture liquid outlet

50, 50 A, 50 B ejectors

5 1 B Liquid inlet of projector

55 B ejector liquid outlet

56 B Gas supply path of ejector

60 B static mixer

70 A, 70 B reactor section

7 1 A, 7 I B Reactor inlet

72A, 72 B Reactor section outlet

1 00, 1 00 ', 100' ', 1 0 1, 1 02 Manufacture of continuous pressurized flow type gas dissolved liquid

BEST MODE FOR CARRYING OUT THE INVENTION

In the method for producing a gas-dissolved liquid using the apparatus of the present invention, a gas maintained at a high pressure is mixed with a liquid flowing through a thin tube, and a gas mixed liquid in which the gas is mixed flows. By maintaining the pressure of Touch and dissolve a large amount of gas in the liquid. 'Here, gas-dissolved liquid refers to the state in which gas is dispersed in the liquid to form a uniform phase, and gas-mixed liquid refers to the state in which liquid and gas are mixed. Also called. When the gas-mixed liquid flows in the narrow tube, it becomes a gas-liquid mixed-phase flow in which gas bubbles exist in the liquid. However, the gas-dissolved liquid and the gas-mixed liquid are not strictly distinguished from each other. When the gas-dissolved liquid is produced using the apparatus of the present invention, the gas is mixed with the liquid to form the gas-mixed liquid. The combined liquid is converted into a gas-dissolved liquid through a part of the reactor, but part of the gas is dissolved in the liquid even in the gas mixed liquid state, and part of the gas is degassed from the liquid even in the gas-dissolved liquid state. It can be present in the liquid in the form of bubbles. In the present invention, when the gas is mixed with the liquid, the gas state may be distinguished from the gas-dissolved liquid or the gas-mixed liquid depending on which is superior. In the present invention, the gas-dissolved liquid may be referred to as a gas-dissolved liquid.

The narrow pipe line through which the liquid flows has a gas-liquid mixing part and a part of the reactor in the middle of the pipe line. The gas-liquid mixing section, the narrow tube and the reactor section are connected with the gas-liquid mixing section located upstream of the reactor part so that the liquid flows through the liquid. Flows through the part and the reactor part. In the present invention, upstream and downstream are referred to as upstream or downstream on the basis of the direction of the flow of the liquid flowing through the conduit of the flow-type device. The liquid flows from the raw material container through the narrow tube to the gas dissolved liquid receiver. Here, the raw material liquid is a liquid that is intended to dissolve a gas and is a liquid before the gas is dissolved. While the liquid flows from the raw material liquid container to the gas-dissolved liquid receiver, the gas is mixed in a state where pressure is applied to the liquid flowing through the narrow tube by the gas-liquid mixing section. However, at this time, the gas is not sufficiently dissolved in the liquid, and the gas and the liquid are mixed in the state where the gas bubbles exist in the liquid, that is, in the state of the gas mixed liquid. The gas mixture liquid flows toward the reactor section in the narrow tube, and the pressure of the gas mixture liquid is maintained in the pipe line upstream of the reactor section or in the reactor section by the action of the reactor section. As a result, a large amount of gas is dissolved in the liquid by the action of pressure. Also, due to the action of the reactor section, the bubble size of the gas mixed in the liquid in the state of bubbles is reduced, the contact area between the gas and the liquid is increased, and the gas is more easily dissolved in the liquid. The gas-containing liquid in which the gas is dissolved is gradually depressurized in the reactor and exits the reactor. Enter the receiver through the narrow tube.

The thin tube is made of a tube that can withstand high pressure, and the thin tube that can withstand high pressure is preferably a tube made of a pressure resistant material such as iron, stainless steel, or resin. .

The gas-liquid mixing unit is configured such that the pipe line of the thin tube through which the liquid flows and the pipe to which the gas is supplied merge. The gas flowing in the narrow tube is continuously supplied in a pressurized state. The gas may be supplied from a high-pressure cylinder containing gas. The gas-liquid mixing part may have any form as long as the gas is mixed with the liquid. For example, a pipe that feeds pressurized gas is connected to the side of a thin tube through which liquid flows, and an air supply port is provided in the connection, and gas is injected and mixed from the air supply port into the liquid flowing through the thin tube. This should be done. In this case, the pipe that feeds the gas branches into a T-shape or a substantially T-shape with respect to the thin tube through which the liquid flows. The air supply port may be provided on the side wall of the thin tube, or may be inserted and opened in the liquid flowing through the thin tube. As such a gas-liquid mixing section, for example, an apparatus having an ejector structure can be used. An ejector is a device that draws gas in a depressurized state by providing a bottleneck in a part of the liquid flow path and increasing the flow velocity in that part. In the ejector, the branch pipe is connected to the main pipe in a T shape, and the liquid flowing through the main pipe is decompressed in the bottleneck, and the gas in the non-pressure branch pipe is drawn into the liquid. If fine bubbles are generated by the ejector, the contact surface between the liquid and the gas becomes large and the gas can be easily dissolved.

What is important here is that high pressure is applied to the liquid before it flows into the reactor section downstream of the gas-liquid mixing section. For that purpose, for example, pressure is applied to the liquid and it flows in the pipe of the narrow tube. At the time of filling, pressure may be applied to the inside of the container for supplying the raw material liquid, and the pressure may cause the liquid to flow through the narrow tube, or a pump, compressor, booster, etc. may be provided in the middle of the narrow tube. By these, pressure may be applied to the liquid so that it flows in the narrow tube. When pressure is applied to the liquid, for example, the raw material liquid may be placed in a pressurized container and the liquid may be flowed by pressure. Alternatively, tap water may be used as the raw material liquid and the supply pressure of tap water may be used. When using a pump, a pressure pump, for example, a vortex pump (cascade pump) is used. A vortex pump is a pump that discharges liquid while increasing the pressure while rotating a disk with a groove in a narrow casing to cause a strong vortex in the liquid and making the inner circumference of the casing approximately one round. A thin tube can be allowed to flow under pressure. If a liquid is flowed under pressure, the flow rate will exceed a certain speed. '

The pump is located upstream of the reactor, and may be located either downstream or upstream of the gas-liquid mixing section. When a vortex pump is used as the pump, it is preferably installed downstream of the gas-liquid mixing section. '

For example, by combining a liquid flow pipe, which is a liquid supply pipe through which liquid flows upstream of the pump, and a gas supply pipe, to which gas is supplied, gas supplied at high pressure is supplied to the liquid flowing through the narrow pipe by the action of the pump. Mixed.

The liquid in which the gas is mixed by the gas-liquid mixing part flows through the narrow tube and travels toward the reactor part. By the action of the reactor section, the pressure of the liquid mixed with gas is maintained without being rapidly reduced. That is, the reactor part works as a pressure maintaining part. When the pressure of the liquid mixed with the gas is maintained high, the gas can be dissolved in a large amount in the liquid. Depending on the specific structure or material, the reactor section increases the friction between the liquid flowing inside and the reactor section, or resists the flow of the liquid in which the gas is mixed, thereby inhibiting the rapid flow of the liquid. As a result, the pressure in the upstream of the reactor part and Z or the pressure inside the reactor part can be maintained. A part of the reactor is, for example, a thin tube having a plurality of fin structures inside. It may also be a narrow tube having a bottleneck.

In addition, the liquid in which the gas is mixed is stirred by the reactor, the contact area between the gas and the liquid increases, and the gas dissolution efficiency increases. Furthermore, by applying pressure and stirring, the gas bubbles become smaller, the contact area between the gas and the liquid increases, and the gas dissolution efficiency increases. In this respect, the reactor part of the present invention also functions as a part for increasing the contact area between the gas and the liquid.

In the reactor section, friction occurs due to the contact of the molecules and gas molecules that make up the liquid, so the higher the flow of the liquid, the higher the pressure.

A static mixer is fisted as an example of the reactor unit. When a static mixer is used, the contact time between the liquid and the gas can be extended, so that the dissolution efficiency of the gas in the liquid can be further improved. As shown in Fig. 5, a static mixer has a plurality of elements (eg, 8 and 16) in an elongated tubular housing. This element is a rectangular metal flat plate with a 180 ° right twist (see Figure 5B and Figure 5C) or a left twist (Figure 5). D and Fig. 5 E)). Fig. 5 B and Fig. 5 D are front views of the right and left twist elements, respectively. Fig. 5 C and Fig. 5 E are the elements shown in Fig. 5 B and Fig. 5 C, respectively. It is a figure of the state which rotated 90 degrees. A static mixer is created by combining these elements as many times as necessary. The size of each element of the static mixer is, for example, about 1.5 cm in length and about 1 cm in width. Use the same number of right and left twist combinations. In this case, the 8-element static mixer is about 18 cm long, and the 32-element type is about 54 cm long.

As shown in Fig. 5F, fins may be provided on the static mixer elements. By providing such protrusions, fins, and indentations, the flow of liquid flowing in the static mixer is hindered, liquid pressure is applied, and the amount of gas dissolved increases. The protrusion may be a small protrusion or a wholesale protrusion. Also, turbulence is generated by the protrusions and fins, the bubble size of the gas mixed in the liquid is reduced, the contact area between the gas and the liquid is increased, and the gas dissolution efficiency is improved. Further, the surface of the static mixer element may be processed so as to increase the friction with the liquid. For example, the element surface is roughened by plast processing, and the element surface is grooved.

In the apparatus of the present invention, the gas is continuously dissolved in the liquid while the liquid flows from the raw material liquid container to the gas dissolution liquid receiver. In the apparatus of the present invention, at least the gas dissolving liquid receiver may be in contact with the atmosphere. Moreover, even if it is not in contact with the atmosphere, it is not necessary to apply pressure to the gas-dissolved liquid receiver, and the gas-dissolved liquid is almost at atmospheric pressure. In this respect, it can be said that the device of the present invention is not completely closed from the atmosphere and is open to the atmosphere. Therefore, it can be said that the apparatus of the present invention is an open system apparatus.

Since the liquid lead-out path portion of the reactor section is connected to a gas-dissolved liquid receiver that is not under pressure, the pressure gradually decreases from the liquid introduction path to the liquid lead-out path inside the reactor section. In this way, by gradually reducing the pressure, the sudden It is possible to prevent the disappearance of intense supersaturated gas. Therefore, the gas is maintained in a supersaturated state in the gas-dissolved liquid recovered through the reactor through the narrow tube.

In particular, the apparatus of the present invention can keep a gas composed of a single atom such as hydrogen that is hard to be bubbled and hardly dissolved in a liquid in a supersaturated state for a long time, so that a gas that is difficult to be bubbled such as hydrogen is dissolved in a liquid. Suitable for At this time, if the contact is made at a low temperature, the gas can be dissolved at a high concentration.

The gas-liquid mixing unit and the reactor unit may be connected via a thin tube, or the reactor unit may be directly connected downstream of the gas-liquid mixing unit.

A valve is installed in the middle of the narrow pipe as necessary to prevent the flowing liquid from flowing backward. .

The inner diameter of the narrow tube is 0.2-5 cm, preferably 0.5-2 cm, depending on the amount of the gas-dissolved liquid to be produced. Similarly, the inner diameter of the reactor is 0.2 to 5 cm, preferably 0.5 to 2 cm, depending on the amount of the gas-dissolved liquid to be produced. Furthermore, the ratio of the tube inner diameter to the length of the reactor section is 1:10 to 200, preferably 1:20 to 100.

The pressure applied to the gas mixed with the liquid flowing in the narrow tube is 1 to 20 atmospheres, preferably 2 to 10 atmospheres, and more preferably 3 to 5 atmospheres. The gas is supplied in a high-pressure cylinder, but the high-pressure cylinder is usually under a pressure of several tens to several hundreds of atmospheres. Therefore, when supplying gas from a high-pressure cylinder, a pressure reducing valve is provided between the high-pressure cylinder and the gas-liquid mixing unit, and the pressure of the gas supplied to the gas-liquid mixing unit is reduced to the above pressure. The pressure applied to the liquid flowing in the narrow tube is 3 to 5 atm in the reactor introduction path, and the pressure is maintained upstream of the reactor section and / or in the vicinity of the reactor section introduction path. Moreover, as described above, when the liquid flows in the reactor section, the pressure applied to the liquid gradually decreases. In the reactor lead-out path, the pressure applied to the gas is about 1 to less than 2 atmospheres, preferably about 1 atmosphere, which is almost the same as the atmospheric pressure.

In addition, the flow rate of liquid flowing through the narrow tube of this device depends on the amount of gas dissolved liquid to be manufactured and the amount of gas dissolved liquid to be produced, but when using a reactor with an inner diameter of 1.1 cm, it is preferably 5 to 80 L / min. Is 10-40L / min. The flow rate of gas supplied to the gas-liquid mixing section is 0.2-5. L / min, preferably 0.5-2 L / min. When a gas is dissolved in a liquid at normal pressure, the dissolved amount increases as the time during which the gas and the liquid are in contact with each other is longer. Therefore, when dissolving at normal pressure, a smaller liquid flow rate is preferred. On the other hand, in the apparatus of the present invention, pressure is applied when the gas and the liquid are in contact with each other, and the gas is dissolved in a short time, so that the flow rate of the liquid can be increased. Since the liquid flow rate can be increased, the gas flow rate can be adjusted accordingly. For example, if a liquid is flowed at a flow rate of 40 L / min to produce a gas-dissolved liquid, about 2.5 tons of gas-dissolved liquid can be produced per hour. In order to achieve this production efficiency in a closed system high pressure holding manufacturing method using a closed pressurized tank, a huge tank or a large number of tanks are required. The continuous pressurized flow type gas-dissolved liquid production apparatus of the present invention can produce a gas-dissolved liquid much more efficiently and inexpensively than conventional methods. The continuous pressurized flow type gas-dissolved liquid production apparatus of the present invention may include only one set of the gas-liquid mixing unit and the reactor unit, or may include a plurality of sets. When only one set is provided, one type of gas can be dissolved and contained in the liquid, and when multiple sets are provided, a plurality of gases can be dissolved and contained in the liquid. In an apparatus that includes a plurality of gas-liquid mixing sections and reactor sections and dissolves a plurality of gases in a liquid, the conditions such as the pressure of each gas and liquid are the same as in the above-described apparatus that dissolves one kind of gas in a liquid. It is.

Examples of the liquid that dissolves gas using the apparatus of the present invention include general aqueous beverages such as mineral water, fruit juice and fruit beverages, coffee beverages, oolong tea beverages, green tea beverages, tea beverages, and barley tea beverages. Examples include tea drinks, vegetable drinks, sports drinks, soft drinks, gel drinks, cosmetics, shampoos, and physiological saline.

Examples of the gas dissolved in the liquid include hydrogen gas, oxygen gas, ozone gas, and the like, but hydrogen gas is preferable.

For example, when hydrogen is used, hydrogen is about 1 atmosphere of hydrogen at 1 atmosphere and room temperature

17. 5 mL can be dissolved (about 1.6 _P pm, about 0.8 mM). The gas-containing liquid of the present invention contains 10 mL or more, preferably 15 mL or more, particularly preferably 17.5 mL or more of hydrogen molecules per 1 L of water. In addition, the gas-dissolved liquid of the present invention contains 0.1 ppm or more, 0.5 ppm or more, preferably 1 ppm or more, more preferably 1.5 ppm or more. In addition, the gas dissolution of the present invention The liquid contains hydrogen of not less than 0. ImM, preferably not less than 0.4 mM, more preferably not less than 0.6 mM, particularly preferably not less than 0.8 mM. Furthermore, by using the apparatus of the present invention, a large amount of hydrogen-dissolved water in which hydrogen is dissolved in a supersaturated state can be obtained. If the dissolved hydrogen concentration is 1.52 _PP m or more, or 1.5 mg / L or more, it is considered that hydrogen is dissolved due to supersaturation. -Further, when oxygen is dissolved alone, the gas ^ -containing liquid of the present invention contains 0.2 mg or more, preferably 10 mg or more, more preferably 40 mg or more per 1 L of water. When coexisting with hydrogen, 0.2 mg or more, preferably 2 mg or more, more preferably 10 mg or more is contained per liter of water.

When hydrogen or hydrogen and oxygen are dissolved, the pH of the gas-dissolved liquid is 3 to 11, and the redox potential is −50 mV or less.

The gas-dissolved liquid obtained by using the apparatus of the present invention is preferably stored in a container made of a material that cannot transmit gas such as aluminum. Examples of such containers include an aluminum bouch and an aluminum can.

The gas-dissolved liquid produced using the apparatus of the present invention is used as drinking water or soft drinks. For example, drinking water and soft drinks in which hydrogen is dissolved, drinking water and soft drinks in which oxygen is dissolved, and drinking water and soft drinks in which hydrogen and oxygen are dissolved It becomes drinking water and soft drinks.

In addition, the gas-dissolved liquid produced using the apparatus of the present invention includes cosmetics in which gas is dissolved, pharmaceuticals in which gas is dissolved, for example, cosmetics and pharmaceuticals in which hydrogen is dissolved, cosmetics in which oxygen is dissolved, and Used as pharmaceuticals and cosmetics and pharmaceuticals in which hydrogen and oxygen are dissolved, specifically, for example, pharmaceuticals such as infusion containing hydrogen and oxygen simultaneously.

Furthermore, the gas-dissolved liquid produced using the apparatus of the present invention is used as a cleaning liquid in which a gas is dissolved. For example, when hydrogen is dissolved in pure water, a liquid having a large reducing power is formed. It can be used for washing.

Furthermore, the gas-dissolved liquid produced using the apparatus of the present invention can also be used for storing gas.

Furthermore, when tap water is used as the raw material liquid, the apparatus of the present invention is used as a tap water faucet. By connecting, gas-dissolved tap water can be easily produced at home. In this case, the raw material liquid is pressurized by the supply pressure of tap water.

An example of the continuous pressurized flow type gas dissolved liquid production apparatus of the present invention will be described with reference to FIGS. As shown in FIG. 1A, this continuous pressurized flow type gas-containing liquid production apparatus 100 includes a gas-liquid mixing unit 35 and a reactor unit 70.

As the gas-liquid mixing unit 35, in addition to the ejector 50 shown in FIG. 2, a gas inlet 41 is provided in the pipe 40 shown in FIG. 3, and one of the pipes 40 shown in FIG. And a part having a gas permeable membrane or a polynomial gas permeable plate 42 at the part.

The reactor unit 70 is located downstream of the gas-liquid mixing unit 35, and the gas-liquid mixing unit and a part of the reactor may be directly connected or connected via a thin tube as shown in Fig. 1. A. May be.

Figure 2 shows the structure of the ejector 50. The ejector 50 has a nozzle inlet 52, a diffusion chamber 53, and an inner diameter that tapers and extends from the liquid inlet 51 and the liquid inlet 51. A diffuser portion 54, an outlet channel with a uniform inner diameter communicating with the diffuser portion 54, and a gas introduction channel 56 connected with the diffusion chamber 53 are provided. In this ejector 50, when the liquid is introduced from the liquid introduction passage 51 and injected from the nozzle 52 to the eve user section 54, the inside of the diffusion chamber 53 becomes negative pressure, so the gas introduction passage 5 6 Since the gas is sucked from the gas and mixed sufficiently in the diffuser section 54, the sucked gas can be efficiently absorbed into the liquid. In addition, since the flow rate of the liquid can be increased, a large amount of gas can be absorbed in a large amount of liquid while being small in size.

As the reactor section, a static mixer may be provided downstream of the gas-liquid mixing section. For example, in FIG. 1C, an ejector 50 is used as a gas-liquid mixing unit, and a static mixer 60 that is a reactor unit is directly connected.

If a static mixer is used, the contact time between the liquid and the gas can be extended, so that the gas absorption efficiency can be further improved. In addition, when a static mixer is used, the speed of the liquid flowing through the pipe temporarily decreases, and as a result, the pressure of the liquid in the gas-liquid mixing section increases, and the dissolution of the gas into the liquid becomes more efficient. . This static mixer 60 has an elongated tubular housing as shown in FIG. A plurality of elements 6 2 (for example, 8, 16 or 32 elements) are arranged in the group 61, and this element 6 2 is a 180 ° right twist of a square metal plate (Fig. 5). B and Fig. 5C) or a left twist (see Fig. 5D and Fig. 5E). 5B and 5D are front views of the right twist element and the left twist element, respectively, and FIGS. 5C and 5E rotate the elements shown in FIGS. 5B and 5C by 90 °, respectively. It is a figure of a state. The static mixer 60 is created by appropriately combining these elements 62 as many as required. The length of each element of the static mixer is about 1.5 cm and the width is about 1 cm, for example. Use the same number of right and left twist combinations. The 8-element type static mixer is about 18 cm long, and the 32-element type is about 54 cm long.

1A is a device for dissolving one kind of gas in a liquid, comprising only one set of a gas-liquid mixing unit and a reactor unit. Yes.

The container 2 1 containing the raw material liquid 2 2 and the liquid introduction path 3 6 B of the gas-liquid mixing part 3 5 are connected to the liquid flow tubule (liquid supply pipe) 2 4 via the pressure pump 2 3. Yes. Further, the gas cylinder 25, which is a pressurized gas supply source, and the gas introduction path 37B of the gas-liquid mixing unit 35 are connected via a pressure reducing valve 26, a pressure gauge 27 and a flow meter (not shown). Gas supply piping 28 is connected. Further, the liquid lead-out path 3 8 B of the gas-liquid mixing section 35 is maintained at normal pressure via the liquid circulation capillary (gas dissolved liquid recovery pipe) 29, the reactor section 70, and the stop valve 30. It is connected to the upper part of the receiver 31 for gas dissolved liquid.

As shown in FIG. 1B, the pressurizing pump 23 may be located downstream of the gas-liquid mixing unit and upstream of a part of the reactor.

The gas-dissolved liquid production apparatus 100 is operated as follows to produce a predetermined gas-dissolved liquid 32. That is, the raw material liquid 2 2 in the container 21 is pressurized to a predetermined pressure, for example, 1 to 10 atmospheres by the pressurizing pump 2 3, and the liquid introduction path of the gas-liquid mixing unit 3 5

3 6 B, and the gas in the gas cylinder 25 is adjusted to a predetermined pressure, for example, 3 to 5 atm by the pressure reducing valve 26, and is supplied to the gas-liquid mixing unit 35 by the gas supply pipe 28. Supplied to gas inlet path 3 7 B.

The gas mixed liquid that has exited from the liquid lead-out path 3 8 B of the gas-liquid mixing unit 35 is directed to the reactor unit 70. The gas mixture liquid has already been pressurized, and the pressure is maintained by the action of the reactor section, and enters the reactor section introduction path 7 1 B in a pressurized state. For this reason, the gas is dissolved in the liquid in the reactor section. The liquid is gradually depressurized in the reactor section, and a gas-dissolved liquid with a pressure close to normal pressure comes out from the outlet of the reactor part, and a liquid flow tube (gas-dissolved liquid recovery pipe) 29 and a stop valve 30 After that, it is led to the upper part of the receiver 31 maintained at almost normal pressure. In this receiver 31, a part of the gas dissolved in the obtained gas-dissolved liquid 3 2 is vaporized, but a large amount of gas remains in the gas-dissolved liquid 3 2 in a supersaturated state. The vaporized gas is released into the atmosphere. The receiver 31 may be sealed to prevent entry of dust in the atmosphere, but it is not pressurized and is maintained at almost normal pressure.

Fig. 1B shows a device with a pressure pump 23 located downstream of the gas-liquid mixing section. In this case, the gas mixed liquid mixed in the gas-liquid mixing unit 35 is directed to the reactor unit 70 in a pressurized state by the action of the pressurizing pump. As the pressurizing pump, for example, a vortex pump may be used.

FIG. 1C shows an apparatus having an ejector 50 as a gas-liquid mixing section and a static mixer 60 connected directly to the ejector 50.

Further, FIGS. 6 and 7 show an apparatus for producing a gas-dissolved liquid in which two kinds of gases are dissolved. The apparatus shown in FIG. 6 has two gas-liquid mixing sections and two reactor sections, and the gas in the first gas cylinder 15 is in the first gas-liquid mixing section 35 A and the first recycle section. Actor unit 7 Dissolved in liquid 1 1 by OA and once stored in liquid receiver 2 1 in which the gas in the first gas cylinder is dissolved. Next, the gas in the second gas cylinder 25 is converted into a liquid in which the gas in the first gas cylinder is dissolved by the second gas-liquid mixing section 35 B and the second reactor section 70 B. Furthermore, a liquid 32 which is dissolved and dissolves two kinds of gases is obtained.

The gas-dissolved liquid manufacturing apparatus 10 0 1 shown in FIG. 6 obtains a gas-dissolved liquid in a pressurized state at the first gas-liquid mixing unit 35 A, and then returns to normal pressure to dissolve normal-pressure gas. A liquid is obtained, and this gas-dissolved liquid at normal pressure is again returned to a predetermined pressure, for example, 1 to 10 gas by the pressure pump 23. Pressurize the pressure and supply it to the second gas-liquid mixing part 3 5 B via the second gas-dissolved liquid supply pipe 24, but omit the step of decompression friend pressurization at this part. Is also possible. An example in which the steps of depressurization and pressurization are omitted is shown in FIG. In the apparatus shown in FIG. 7, a set of two gas-liquid mixing sections and a reactor section are connected in series, and the gas in the first gas cylinder 15 is the first gas-liquid mixing section 3 5 A and first reactor part 7 OA dissolves in liquid 11 and the obtained gas-dissolved liquid is sent to the second gas-liquid mixing part 3 5 B as it is, and the second gas-liquid mixing part 3 5 B and the second reactor section 70 B dissolve the gas in the second gas cylinder into the liquid in which the gas in the first gas cylinder is dissolved, and dissolve the two types of gas. Liquid 3 2 is obtained. The difference between the gas-dissolved liquid manufacturing apparatus 1 0 2. shown in Fig. 7 and the gas-containing liquid manufacturing apparatus 1 0 1 shown in Fig. 6 is that the first reactor section 7 OA liquid derivation Connect the line 7 2 A and the liquid inlet 3 5 B of the second gas-liquid mixing section 3 5 B by the flow rate control valve 3 3 and the first gas-dissolved liquid supply pipe 3 4, The gas-liquid mixing section 3 5 of the mi and the first reactor section 70 A The pressurized first gas-dissolved liquid obtained at the pressure of the first gas-dissolved liquid supply pipe 3 via the flow control valve 3 3 4 is only supplied directly to the liquid introduction path 36B of the second gas-liquid mixing section 35B, and the other configurations are substantially the same.

In this case, the flow rate adjusting valve 33 may not be provided, but the first gas-dissolved liquid in a pressurized state is given a slight pressure loss at this portion, and the liquid introduction path of the second gas-liquid mixing unit 35 B It is preferable to supply to 3 6 B because the flow rate is stabilized and control is facilitated. '

In the apparatus shown in FIGS. 6 and 7, for example, oxygen gas may be used as the first gas and hydrogen gas may be used as the second gas.

Hereinafter, specific examples of the present invention will be described in detail using examples. However, the following examples are not intended to limit the present invention, and the present invention is not limited to the technology described in the claims. It can be equally applied to various changes made without departing from the idea.

Example 1 Production of hydrogen-dissolved water

In the device shown in Fig. 1 A, tap water is used as the raw material liquid, and water from the tap is used. The raw water supply pipe 2 4 was passed. The supply pressure of tap water was about 1.5 to 2 atmospheres. A stainless steel pipe (11 mm in diameter) was used as the thin tube, a stainless steel T-shaped joint was used as the gas-liquid mixing part, and hydrogen gas was supplied to the joint from a hydrogen cylinder. The pressure of the hydrogen gas supplied to the gas-liquid mixing section was 0 · 4 MPa (megapascal) (about 4 atm). A static mixer (32-fin static mixer with 32 elements) was connected to the gas-liquid mixing section. As a static mixer, a static mixer with 32 elements (fins) (Noritake, T8-32R-4PT, size: tube inner diameter llmm X length 540mm) and a static mixer with 8 elements (fins) (Noritake) CSM-12-1, size: tube inner diameter llmmX length 162mm). Figure 8 shows the configuration of each part of the equipment used. In the figure, 1 to 6 are joints (fine tubes) or parts for connecting thin tubes, and 4 corresponds to the gas-liquid mixing part. 7 is an electromagnetic valve, 8 is a flow switch, 9 is a valve, and 10 is a static mixer. 1 1 and 1 2 are electrical components. .

The flow rate of water flowing through the pipe of the device is 4, 6, 8 or 10 L / min, and the flow rate of hydrogen gas supplied to the gas-liquid mixing section is 0.1, 0.4, 0.6, 0.8. It was 1 · 10L / min. The hydrogen-dissolved water that came out of the narrow tube through the static mixer was collected and the hydrogen concentration was measured. The results are shown in Table 1. In Table 1, the unit of hydrogen concentration is ppm. As shown in Table 1, the amount of dissolved hydrogen increases as the water flow rate increases and the hydrogen flow rate increases. In addition, the amount of dissolved hydrogen increases when a static mixer with 32 elements is used than when a static mixer with 8 elements is used. In particular, when a static mixer with 32 elements was used and the water flow rate was 8 L / min and the hydrogen flow rate was 0.8 L / min, hydrogen-dissolved water in which hydrogen was dissolved in supersaturation was obtained. The greater the water flow rate, the greater the water pressure in the reactor section. Furthermore, the larger the number of elements in the static mixer, the more obstructed the water flow in the reactor section, and the greater the water pressure in the reactor section. This result shows that the pressure of the liquid in the reactor can be kept high enough for a period of time sufficient to dissolve the gas up to the supersaturated state. Also, the faster the water flow rate, the shorter the contact time between water and hydrogen, indicating that the amount of dissolved gas can be increased by maintaining the pressure higher than the contact time. table 1

Static mixer dissolved hydrogen measurement experiment

1. Number of fins for static mixer: 3 2

Condition Hydrogen pressure: 0.4 MPa

Single: pm

2. Static mixer fins: 8

Conditions Hydrogen pressure: 0.4 MPa-Single 1: ppm

Example 2 Production of hydrogen water

Manufacturing by changing the reactor section ''

In the same manner as in Example 1, hydrogen-dissolved water was produced. In this case, a static mixer with 8 elements (fins) was used.

At this time, in addition to a static mixer that does not process the element, a static mixer in which the surface of the element is plasted (the blasting is roughened with sandpaper), a static mixer in which the surface of the element is processed into a wholesale shape (metal A static mixer (with a dent on the surface with a drill) was used.

The results are shown in Table 2. As shown in Table 2, a processed static mixer was used. In this case, the amount of dissolved hydrogen is larger than when a raw static mixer is used. By plasting the elemecito of the static mixer, the friction between water and the inside of the reactor increases, and the pressure in the reactor increases. In addition, if the element is processed into a wholesale shape, or if a dent is formed, water flow in the reactor will be disturbed, and the water pressure in the reactor will increase. This result shows that the gas dissolution efficiency is increased by keeping the pressure of the liquid near the reactor section and / or the upstream reactor section entrance.

Table 2 Measurement results of dissolved hydrogen using static mixer (8 fins)

Condition: Hydrogen pressure: 0.4 MPa

1. Raw static mixer

2. Static mixer with blasted fin surface-single: p m

4. Dimples in the fan Static mixer

Example 3 Production of hydrogen and oxygen dissolved water

As Example 3, the tap water of the Tokyo person | 5 Chuo-ku (redox potential +420 mV, pH = 7.2) was used as raw water, and the production equipment 1 0 1 shown in FIG. Thus, oxygen and hydrogen-dissolved water were produced. First, only the ejectors 5 OA and 50 B were used and the static mixer was not used as a comparative example, and the comparative example was combined with an 8-element type static mixer as a reactor part. Example 3-2 was also used in which a 32-element static mixer was also used as a reactor part in the same comparative example.

Then, the raw water flow rate, raw water pressure, oxygen dissolved water flow rate, oxygen pressure, oxygen dissolved water pressure, and hydrogen pressure in Comparative Example, Example 3-1 and Example 3-2 were all made the same, and oxygen and hydrogen dissolved water were used. Manufactured. Table 3 summarizes the manufacturing conditions and measurement results. Oxidation reduction potential, oxygen dissolution amount, hydrogen dissolution amount, and pH were measured at room temperature using a 0PR measuring instrument, oxygen amount measuring instrument, hydrogen measuring instrument, and pH meter manufactured by Toa DKK ( The same applies to the following).

Table 3

The results shown in Table 3 indicate the following. (1) As shown in Example 3-2, when a reactor unit using 32 elements is used, a supersaturated or almost saturated solution can be produced regardless of the type of gas, whether oxygen or hydrogen. Therefore, it was shown that sufficient pressure was maintained for a sufficient period of time to dissolve the reactor into a supersaturated state. The saturated concentrations of oxygen and hydrogen are approximately 42 mg / L and 1.5 mg / L, respectively.

(2) Ejectors 50A and 50B were used, and no static mixer was used.The comparative example shows a small amount of dissolved oxygen and a small amount of dissolved hydrogen, indicating that the presence of the reactor is important for the amount of dissolved gas. ing. In addition, oxygen and hydrogen are more dissolved in the 3 2 element than in the 8 element. This indicates that a larger number of elements is advantageous for gas dissolution because the pressure is kept high. The results when using a 64 element static mixer were the same as when using a 32 element static mixer, indicating that 32 elements are sufficient. . ^_

(3) As shown in Examples 3-1 and 3-2, when hydrogen was continuously dissolved in oxygen-dissolved water, it was shown that oxygen could be left.

(4) Even if oxygen dissolved amount is 2.2 mg / L or 3.2 mg / L, neutral hydrogen and 0RP (oxidation-reduction potential) has excellent reducing properties such as _485mV or -566mV. It was shown that oxygen-dissolved water can be obtained.

In both Examples 3-1 and 3-2, the redox potential of the oxygen-dissolved water obtained by dissolving oxygen in the raw water decreased, but this phenomenon was included in the raw water. It is presumed to have arisen from the volatilization of chlorine.

Example 4 Production of hydrogen-dissolved water production plant

In order to obtain a large amount of hydrogen-dissolved water, a plant for producing hydrogen-dissolved water for large-scale treatment was designed and manufactured. Fig. 9 shows a flowchart of the manufacturing equipment. The manufacturing apparatus of FIG. 9 is an embodiment of the apparatus shown in FIG. 1B. Nitrogen gas is used to discharge the liquid in the tank, not the gas dissolved in the liquid.

The description of each part is as follows.

(01) Hydrogen supply pulp (HHV11)

This is the part for opening the valve before the start of operation and preparing for the start of production. After the water production is finished, close the valve manually.

(02) Hydrogen gas regulator (thigh 12) ''

This is a part for finely adjusting the pressure of the hydrogen gas supplied from the hydrogen cylinder, and the pressure of the gas normally supplied at 0.25 MPa is reduced to an arbitrary pressure.

(03) Hydrogen gas flow meter (HHV13, HF01) '

This is a part for finely adjusting the flow rate of hydrogen gas supplied from a hydrogen gas cylinder.

(04) Gas vent valve (HHV14).

This is a part for manually releasing the gas in the tank, and is normally set to OFF.

(05) Nitrogen supply pulp (HHV15)

It is a valve for supplying nitrogen gas used for forced drainage.

(06) Hydrogen gas solenoid valve (HAV11)

When replacing the addition route · This valve is used to supply hydrogen gas during production, and it opens and closes automatically. .

(07) Hydrogen gas solenoid valve (HAV12)

Tank hydrogen replacement · Filling path This valve is used to supply hydrogen gas when hydrogen is replaced, and opens and closes automatically.

(08) Tank adjustment solenoid valve (HAV13)

HTA2 tank · 內 3 tank バルブ Valve for hydrogen replacement, pressure adjustment, etc., which opens and closes automatically. ·

(09) Degassed electromagnetic pulp (HAV14)

Addition path replacement · Valve for releasing gas when draining, etc., and automatically opens and closes.

(10) Nitrogen gas solenoid valve (HAV15)

This valve is used to supply nitrogen gas for forced drainage, and it opens and closes automatically.

(11) Raw water supply pulp (HHV51)

This is a valve for supplying raw water and is normally ON.

(12) Flow meter (HHV52, HF02)

This is the part for adjusting the amount of water supplied from the HPU01 pump to the HTA3 tank. (13) Raw water supply electromagnetic pulp (HAV51)

This is a valve for supplying raw water, which opens and closes automatically during production.

(14) Hydrogen dissolved water supply solenoid valve (HAV52)

This valve is used to send hydrogen-dissolved water to the filling machine and automatically opens and closes. It also automatically opens and closes during filling route hydrogen replacement and CIP cleaning.

(15) Drainage solenoid valve (HAV53)

Discontinued • Pulp that opens and closes automatically during forced drainage and drains. During CIP cleaning, it operates simultaneously with the set temperature check.

(16) Drainage solenoid valve (HAV54)

This pulp automatically opens and closes when draining into the HTA2 tank.

(17) Drainage solenoid valve (HAV55)

Mainly HTA1 tank 'Pulp that opens and closes automatically when draining in the HPU01 pump.

(18) Drainage solenoid valve (HAV56) ''

It is a valve that opens and closes automatically when draining inside the pipe and filter.

(19) Vortex pump (HPU01)

It is a part that feeds raw water and mixes and mixes hydrogen gas and raw water supplied from the inlet side and mixes hydrogen gas. In the case of this device, the liquid inlet of this vortex pump is a gas-liquid mixing section, and gas is mixed with the liquid.

(20) Raw water storage tank (HTA1) ·

This is the part that temporarily stores the raw water supplied.

(21) Buffer tank (HTA2) '

This tank is mainly used for adjusting the hydrogen gas pressure.

(22) Product storage tank (HTA3)

This tank mainly stores products sent from HPU01. The pressure in the tank is equivalent to atmospheric pressure.

(23) Liquid level switch (HTA1, HTA3)

This switch is used to control the water supply and drainage of the tank, and is controlled by three switches, H, M, and L.

(24) Temperature sensor (Dynamic 1) This is a part for measuring the temperature of hot water supplied to the HTA3 tank during CIP.

(25) Safety valve (HSAV01)

This valve is used to adjust the pressure inside the HTA2 tank and opens when the pressure inside the HTA2 tank exceeds the set value.

(26) Reactor section

Liquid and hydrogen gas are brought into gas-liquid contact under pressure to dissolve hydrogen gas in the gas.

(27) Filter 20 μ, 4.5 /

It is a part for removing impurities in raw water and hydrogen water.

(28) Bent Fino Letter

ΗΤΑ1 and ΗΤΑ2 Parts for removing dust from the air flowing into the tank.

(29) Site glass

It is a part for confirming the flow of the liquid in the pipe.

(30) Explosion-proof ventilation fan-This is the part for discharging the air in the hydrogen dissolved water production equipment box.

(31) Hydrogen detector

This is a part for detecting hydrogen gas leaked from the hydrogen-dissolved water production apparatus.

2, The device stops when it reaches OOOppm.

(32) Regulator for compressed air

This is the part for adjusting the pressure of the compressed air for the electromagnetic valve to 0.4 MPa.

In the apparatus shown in Fig. 9, the gas cylinder shown in Fig. 1B

5 is connected, and the raw material liquid container 21 in FIG. 1B is connected to the part indicated by water. In addition, the vortex pump shown by HPU01 corresponds to the pressurizing pump 23 in Fig. 1B, and the gas-liquid mixing section 35 in Fig. 1B exists immediately upstream of the vortex pump, and hydrogen gas is mixed with water. Is done. Furthermore, the part shown by the reactor in the apparatus shown in FIG. 8 is the reactor part 7 in FIG. 1B.

Corresponds to 0. The hydrogen-dissolved water exiting from the reactor section passes through a thin tube and is stored in a tank H T A 3 corresponding to the gas-dissolved liquid receiver 31 in FIG. 1B.

The device shown in Fig. 9 can produce hydrogen-dissolved water in which hydrogen is dissolved in a supersaturated state even when water is flowed at a flow rate of 20 L / min using a reactor with an internal diameter of 1.1 cm. The production speed of hydrogen-dissolved water was 1.2 tons / hour. Industrial applicability ''

When the continuous pressure flow type gas dissolving apparatus of the present invention is used, a liquid in which a large amount of gas is dissolved can be continuously produced in a large amount in a short time.

In addition, a gas-dissolved liquid in which a plurality of gases are dissolved can be manufactured by mixing a plurality of gases at the same time or by partially connecting the apparatus. All publications, patents and patent applications cited herein are incorporated herein by reference in their entirety.

Claims

The scope of the claims

1. a liquid flow line through which a liquid flows, the liquid flow line for flowing the raw material liquid to a gas-dissolved liquid receiver;

A pressurizing means provided in the middle of the liquid circulation pipe, the pressurizing means for pressurizing the raw material liquid to circulate through the flow pipe,

It is at least one gas-liquid mixing part provided in the middle of the liquid circulation pipe, and is connected to the gas container via the gas supply pipe, and is a gas-liquid for mixing the gas from the gas container with the liquid Mixing section,

A continuous pressurized flow type gas-dissolved liquid production apparatus for continuously producing a gas-dissolved liquid by circulating and pressurizing a liquid in a liquid flow conduit.

2. The continuous pressurized flow type gas-dissolved liquid production apparatus according to claim 1, wherein in the reactor section, the pressure applied to the liquid flowing through the reactor is gradually reduced.

3. The continuous pressurized flow type gas-dissolved liquid production apparatus according to claim 1 or 2, wherein the reactor section has a structure that partially obstructs the flow of the liquid.

4. The continuous pressure chamber according to claim 3, wherein the reactor part has a structure that partially obstructs the flow of a liquid selected from the group consisting of a fin structure, a notch structure, a protrusion structure, a plaste processing structure, and a groove structure. Flow-type gas dissolved liquid production equipment.

5. The continuous pressurized flow type gas-dissolved liquid production apparatus according to any one of claims 1 to 4, wherein the reactor section is a static mixer.

6. The continuous pressurized flow-type gas-dissolved liquid producing apparatus according to any one of claims 1 to 5, wherein the gas-liquid mixing unit is an ejector.

7. The continuous pressurized flow type gas-dissolved liquid producing apparatus according to any one of claims 1 to 6, wherein the pressurizing means is a pressurizing pump.

8. The continuous pressurized flow type gas-dissolved liquid producing apparatus according to claim 7, wherein the pressurizing pump is a vortex pump, and is provided downstream of the gas-liquid mixing unit and upstream of the reactor unit.

9. The continuous pressurized flow type gas-dissolved liquid production apparatus according to any one of claims 1 to 8, wherein the gas-liquid mixing unit and the reactor unit are directly connected. '

10. The continuous pressurized flow type gas-dissolved liquid production apparatus according to any one of claims 1 to 9, wherein a ratio of a length of the reactor section to a tube inner diameter is 10 or more.

1 1. Continuously pressurized flow-through gas according to any one of claims 1 to 10, wherein the pressure applied to at least one of the raw material liquid and the gas-dissolved liquid is equivalent to atmospheric pressure and is an open system. Dissolved liquid production equipment.

12. The continuous pressurization flow type gas dissolution liquid production device according to any one of claims 1 to 11, which has a plurality of pairs of gas-liquid mixing sections and reactor sections and can dissolve a plurality of gases. .

13. The liquid is selected from the group consisting of water, mineral water, tea, coffee, soft drinks, juice, gel drinks, cosmetics, shampoos and saline, and the gas is a group consisting of hydrogen gas, oxygen gas and ozone gas. The continuous pressurized flow-type gas dissolving liquid manufacturing apparatus according to any one of claims 1 to 12, which is a gas containing a gas selected from the above.

14. A method for producing a gas-dissolved liquid by continuously dissolving a gas in a pressurized liquid flowing in a pipeline, including the following steps (1) to (3):

(1) a step of mixing the pressurized gas with the pressurized liquid flowing through the liquid circulation line;

(2) a step of dissolving the gas in the liquid by maintaining the pressurized state of the obtained gas mixed liquid; and

15. In step (1), the pressurized liquid is pressurized by supplying pressurized gas to the gas-liquid mixing section provided in the middle of the liquid pipe to the pressurized liquid flowing in the liquid circulation pipe. 15. A method for producing a gas-dissolved liquid by continuously dissolving a gas in a pressurized liquid flowing in a pipe line according to claim 14, wherein the gas-dissolved liquid is a step of mixing the gas.

16. In the step (2), the obtained gas mixture liquid is passed through a reactor section provided in the middle of the liquid circulation pipe and downstream of the gas-liquid mixing section. The process of dissolving a gas in a liquid by maintaining a pressurized state of the mixed liquid, wherein the gas is continuously added to the pressurized liquid flowing in the pipeline according to claim 14 or 15. A method for producing a gas-dissolved liquid by dissolving a gas in

17. The gas-liquid junction in the step (1) is an ejector, and the gas is obtained by continuously dissolving the gas in the pressurized liquid flowing in the pipe line according to claim 15 or 16. A method for producing a dissolved liquid.

18. Pressurization through the pipe line according to any one of claims 15 to 17, wherein the reactor part in the step (2) has a structure that partially obstructs the flow of liquid. A method for producing a gas-dissolved liquid by continuously dissolving a gas in the liquid.

1 9. The reactor in the step (2) has a structure that partially obstructs the flow of a liquid selected from the group consisting of a fin structure, a notch structure, a protrusion structure, a blast processing structure, and a groove structure. Item 19. A method for producing a gas-dissolved liquid by continuously dissolving a gas in a pressurized liquid flowing in a pipe line according to Item 18.

20. The reactor in the step (2) is a stick mixer, and the gas is continuously dissolved in the pressurized liquid flowing in the pipeline according to any one of claims 16 to 19. To produce a gas-dissolved liquid.

21. The pressurized liquid in the step (1) is pressurized by a pressure pump, and the gas is continuously dissolved in the pressurized liquid flowing in the pipeline according to any one of claims 16 to 20. A method for producing a gas-dissolved liquid.

22. The conduit according to any one of claims 16 to 21, wherein, in the reactor section, the pressure applied to the liquid flowing through the reactor is gradually reduced, and the liquid in which the gas is dissolved is returned to normal pressure. A method for producing a gas-dissolved liquid by continuously dissolving a gas in a pressurized liquid flowing through the inside.

23. It has a plurality of pairs of gas-liquid mixing sections and reactor sections, and can dissolve a plurality of gases, and is continuous with the pressurized liquid flowing in the pipeline according to any one of claims 16 to 22. A method for producing a gas-dissolving liquid by dissolving a gas.

24. In a gas-dissolved liquid, the gas is dissolved in a supersaturated state in the liquid, and the gas is continuously dissolved in the pressurized liquid flowing in the pipeline according to any one of claims 14 to 23. A method for producing a gas-dissolved liquid.

25. Liquid is water, mineral water, tea, coffee, soft drink, juice And the gas is a gas containing a gas selected from the group consisting of hydrogen gas, oxygen gas, and ozone gas, and any one of claims 14 to 24. A method for producing a gas-dissolved liquid by continuously dissolving a gas in a pressurized liquid flowing through the pipe line described in 1.