JP2011092893A - Gas-dissolved liquid manufacturing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently manufacture a high concentration gas supersaturation solution compared with the case of an apparatus of prior art. <P>SOLUTION: The gas-dissolved liquid manufacturing system 10 includes a jet pump 15 configured such that a pressurized gas E in a pressurizing/dissolving tank 12 is absorbed and mixed into a pressurized liquid D introduced from a circulation pump 13 to dissolve the gas at a high speed and a high concentration pressurized gas-dissolved solution F may be sent to a liquid layer C from the jet pump 15. In addition, the produced high concentration pressurized gas-dissolved solution F is suddenly released to a lower pressure through a restriction orifice 16, thereby enabling the gas to be utilized as a gas supersaturation solution H containing microbubbles G. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a gas solution manufacturing system.

  Dissolving a gas in a liquid for a specific purpose is widely performed. For example, in order to generate a carbonated spring (carbonated water) that is said to have a vasodilatory action, carbon dioxide is dissolved in water, and devices that realize this are known. Moreover, in order to produce | generate ozone water, dissolving ozone gas in water is generally performed. Furthermore, a method for producing hydrogen water, which is said to be useful for neutralizing blood oxygen, is also known.

  For example, Patent Document 1 discloses an apparatus capable of primarily dissolving carbon dioxide in a pressure tank in bathtub water by using a static pressure reducing action in a cross-sectional area reducing portion of an ejector.

  Moreover, in patent document 2, the apparatus which expands the gas-liquid interface area of the carbon dioxide supplied from the gas cylinder and the water in a container by spraying water on the water surface, and dissolves carbon dioxide in water is disclosed. Has been.

  Furthermore, Patent Document 3 discloses an apparatus for generating a carbonated spring by dissolving carbon dioxide in water by stirring the carbon dioxide in the space above the water surface in the airtight tank.

JP 2008-43713 A JP2007-14482 JP2007-289492

  However, in the apparatus of Patent Document 1, it is considered that the gas suction efficiency (= suction gas flow rate / feed water flow rate) in the reduced sectional area of the ejector is about 20% at most, and a high-concentration gas solution is produced. That is difficult. In addition, since the liquid in which the gas is primarily dissolved is jetted and sent to the pressure tank, the liquid layer in the pressure tank is relatively static, and the gas concentration of the solution at the bottom of the pressure tank is low. There was a problem.

  Moreover, in the apparatus of patent document 2, since it is set as the structure which sprays a liquid in a fine state in order to increase a gas-liquid interface area, it takes a long time to dissolve gas about the water in a container, and it is efficient. The gas was not dissolved in the water.

  Moreover, in the apparatus of Patent Document 3, since carbon dioxide gas and water are only stirred at the upper part of the water surface, it is difficult to sufficiently dissolve the carbon dioxide gas in the water at the bottom of the airtight tank.

  In order to solve the above problems, the present invention provides an atmosphere open tank for holding a gas solution, a pressure dissolution tank for generating a gas solution inside a pressurized state, and pressurizing the liquid in the atmosphere open tank. A gas solution production system comprising a circulation pump that leads to a dissolution tank and a pressurized gas supply source that supplies pressurized gas to the pressurized dissolution tank. The gas layer that is pressurized by the gas from the source and the liquid layer that is pressurized at the same pressure are held inside, and the gas layer is added to the pressurized liquid led from the circulation pump. The pressurized gas solution whose gas solubility is increased by a jet pump configured to dissolve the gas at high speed by sucking and mixing the pressurized gas is discharged into the liquid layer. Restriction for inflow of pressurized gas solution generated from the liquid layer A gas supersaturated solution which has a refis and becomes a bubble liquid which is a liquid containing small gas bubbles generated when the pressurized gas solution passes through the restriction orifice and is brought into a state of substantially atmospheric pressure. We propose a gas solution manufacturing system constructed in

  In this invention which takes said structure, it becomes possible to manufacture a high concentration gas supersaturated solution efficiently.

The figure which shows an example of the gas solution manufacturing system of an Example The figure which shows an example of the jet pump of an Example

  Examples of the present invention will be described below. In addition, this invention is not limited to the following Examples at all, and can be implemented in various modes without departing from the gist thereof.

<Overview>
The gas solution manufacturing system of the present embodiment has a jet pump configured to suck and mix the pressurized gas in the pressurized dissolution tank with the pressurized liquid led from the circulation pump to dissolve the gas at high speed. By using the jet pump, it is possible to send a high-concentration pressurized gas solution to the liquid layer of the pressure dissolution tank. Further, the generated high-pressure pressurized gas solution is suddenly released by passing through the restriction orifice, and can be used as a gas supersaturated solution containing microbubbles.

<Overall configuration of gas solution manufacturing system>
FIG. 1 is a diagram illustrating an example of a configuration of a gas solution manufacturing system according to the present embodiment. As shown in this figure, the gas solution production system 10 of the present embodiment includes an atmosphere release tank 11 (including a restriction orifice 16), a pressure dissolution tank 12 (including a jet pump 15), a circulation pump 13, and the like. And a pressurized gas supply source 14. Each of these devices can be connected via a tubular member or the like, but can also be connected directly.

  The air release tank 11 has a function of holding a gas solution. The shape and material of the atmosphere release tank 11 are not particularly limited, and can be appropriately selected according to the application. For example, it is possible to use a full bath bath or a foot bath. A specific configuration inside the limiting orifice 16 will be described below.

  Moreover, the pressure dissolution tank 12 has a function of generating a gas solution inside the pressurized state. The shape and material of the pressure dissolution tank 12 are not particularly limited, but it is preferable to use a material with high pressure resistance that can withstand the pressurized state. The pressure dissolution tank 12 can be provided with a pressure valve for releasing the pressure as appropriate. A specific configuration inside the jet pump 15 and the like will be described below.

  The circulation pump 13 has a function of guiding the liquid in the atmosphere release tank 11 to the pressure dissolution tank 12. As the circulation pump 13, when the pressure of the pressure dissolution tank 12 is increased, a pump having a driving force corresponding to the pressure is used. For example, when the pressure of the pressure dissolution tank 12 is 0.2 MPa, the liquid may be pressurized and delivered at a pressure of 0.4 MPa in order to generate a jet water flow to the inside of the pressure dissolution tank 12. Conceivable. The circulation pump 13 is composed of a DC motor or the like, and it is conceivable that the circulation pump 13 can be voltage-controlled with respect to the amount of water to be pumped up. In addition, the circulation pump 13 can be driven so that circulation always occurs, but can also be driven so as to circulate at a predetermined interval.

  The pressurized gas supply source 14 has a function of supplying pressurized gas to the pressurized dissolution tank 12. As the supply of the pressurized gas, an apparatus for holding the gas under high pressure (gas cylinder), an apparatus for generating the gas, and the like are conceivable.

  The gas solution generated in the gas solution manufacturing system 10 of the present embodiment can be carbonated water or ozone water, but various types in which other gases are dissolved in an arbitrary liquid can be considered. When carbonated water is generated, carbon dioxide is dissolved in water, and when ozone water is generated, ozone gas is dissolved in water. Moreover, the gas dissolved in the liquid does not need to be one type, and a plurality of types of gas may be used.

<Internal configuration of pressure dissolution tank>
As shown in FIG. 1, the pressurized dissolution tank 12 has a gas layer B that is pressurized by a gas A from a pressurized gas supply source 14 in the upper part and a pressurized state at the same pressure in the lower part. Both liquid layers C can be held inside. The adjustment of the pressurization can be performed, for example, by arranging a pressure regulator between the pressurized dissolution tank 12 and the pressurized gas supply source 14. A configuration in which a pressure release valve capable of releasing pressure is provided on the upper part of the pressure dissolution tank is also possible.

  In addition, it is preferable that the pressure of the pressure dissolution tank 12 shall be 0.1 MPa or more and 0.3 MPa or less. Moreover, it is more preferable to set it as 0.2 MPa or more and 0.3 MPa or less. In the gas solution manufacturing system of the present embodiment, by setting the inside to a pressure of 0.1 MPa or 0.2 MPa or more, the saturation solubility of the gas is increased, and the amount of gas dissolved in the liquid is set to a sufficient value. Is possible. The pressurized gas solution that is saturated or close to that state under high pressure becomes a gas supersaturated solution when the pressure is rapidly reduced to atmospheric pressure, and a large amount of small gas bubbles are generated.

  Further, the pressurized dissolution tank 12 has a gas solubility by a jet pump 15 configured to suck and mix the pressurized gas E of the gas layer B with the pressurized liquid D introduced from the circulation pump 13 and dissolve the gas at high speed. It is possible to discharge the pressurized gas solution F with the increased pressure to the liquid layer C. The jet pump 15 injects a high-pressure fluid from a predetermined flow path into the gas suction chamber and sends the mixed fluid to a target location with another fluid in the gas suction chamber.

  FIG. 2 is a diagram showing an example of the configuration of the jet pump 15. The jet pump 15 shown in this figure includes a converging channel 15a, a first narrow channel 15b, a gas suction chamber 15c, a gas introduction pipe 15d, a second narrow channel 15e, and a diffusion channel 15f. Become. Since the pressurized liquid D flowing into the first narrow channel 15b from the converging channel 15a is pushed into the narrow channel, it becomes a high-speed jet water flow and lowers the hydrostatic pressure. The gas suction chamber 15c includes a pressurized gas E introduced through the gas suction pipe 15d. Here, since the high-speed jet water flow has a low hydrostatic pressure, it is added from the gas suction chamber 15c when the jet water flow flows into the second narrow flow channel 15d having a width wider than the first narrow flow channel 15b. Pressure gas E is sucked together. Furthermore, the pressurized gas E becomes small bubbles through the diffusion flow path 15f and is mixed into the pressurized liquid D, and the pressurized gas solution F is generated. Finally, the pressurized gas solution F is delivered to the liquid layer C.

  As an example of specific shape parameters of the jet pump 15, the opening angle of the converging channel 15a is approximately 90 degrees, and the opening angle of the diffusion channel 15f is approximately 20 degrees. Further, the length ratio in the water flow direction of the converging channel 15a, the first narrow channel 15b, the gas suction chamber 15c, the second narrow channel 15e, and the diffusion channel 15f is approximately 2: 1: 2: 0.6: 14 Further, the width ratio of the first narrow flow path 15b, the gas suction chamber 15c, the second narrow flow path 15e, and the gas suction pipe 15d with reference to the length of the first narrow flow path 15b is approximately 0.5: 2. 0.8: 0.4. The absolute size of each part of the jet pump can be appropriately set according to the amount of pressurized liquid D flowing into the jet pump 15.

  The jet pump 15 includes a gas suction chamber 15c for bringing a sufficient amount of high-pressure gas E into contact with the pressurized liquid D, a second narrow channel 15e for mixing the high-pressure gas E with the pressurized liquid D, and Since the diffusion channel 15f is provided, it is possible to dissolve a gas with a much higher concentration in the liquid than in the case of using a conventional ejector. The gas suction efficiency (= suction gas flow rate / feed water flow rate) of the conventional ejector is about 20%, whereas the gas suction efficiency of the jet pump 15 is 100% or more.

  In addition, the structure which provides the stirring member which consists of a stirring rotary blade etc. linearly connected downstream from the diffusion flow path is also considered. By setting it as the said structure, it becomes easy to crush the bubble in a water flow into a further smaller size, and to make it melt | dissolve in a liquid.

  Further, the high-speed jet water flow F discharged from the jet pump 15 generates a global circulating water flow in the liquid layer C, and improves the efficiency of mixing the pressurized gas E and the liquid layer C. That is, the high-pressure gas E can be uniformly dissolved in the liquid layer C. In particular, when the discharge port of the jet pump is in the liquid layer of the pressure dissolution tank, the effect is remarkable.

<Internal configuration of open air tank>
The open air tank 11 has a restriction orifice 16 for allowing the pressurized gas solution F generated in the pressurized dissolution tank 12 to flow from the liquid layer C. The limiting orifice 16 can be either a single hole plate or a perforated plate.

  In addition, the gas release tank 11 is a gas supersaturation that has become a bubble liquid that is a liquid containing small gas bubbles G that are generated when the pressurized gas solution F passes through the restriction orifice 16 and is brought into a state of substantially atmospheric pressure. Hold lysate H. Since the gas supersaturated solution H is in a state in which more gas is dissolved than a gas that can be dissolved under substantially atmospheric pressure, many gas bubbles G are generated when the pressure is rapidly reduced to substantially atmospheric pressure. Will occur. Although the restriction orifice 16 can be a multistage restriction orifice, a configuration using a single restriction orifice is desirable in order to efficiently achieve the action of rapidly releasing the pressure.

  As described above, since the pressurized gas solution F generated in the pressurized dissolution tank 12 is supersaturated at substantially atmospheric pressure, the gas that cannot be completely dissolved when passing through the restriction orifice 16 is a small gas bubble. Occurs as G. In the gas solution manufacturing system of the present embodiment, since the gas is dissolved at a particularly high concentration, a large amount of gas bubbles G may be generated and the gas supersaturated solution H may become cloudy.

  Here, when carbon dioxide is dissolved in water and carbonated spring (carbonated water) is generated, blood circulation is promoted by putting all or part of the body into an open air tank that is clouded by gas bubbles, and promotes health. It becomes possible to plan.

<Other configurations>
As the gas solution manufacturing system, it is possible to further provide a heating unit capable of heating the gas solution. As a region where the heating unit is arranged, an atmospheric open tank or a pressurized dissolution tank is mainly considered, but the position is not particularly limited, and a configuration in which a plurality of areas are arranged is also possible. As the heating unit, a heater or the like that is usually used can be considered. By adding the heating unit, it becomes possible to produce a gas supersaturated solution having a high temperature and a high concentration. For example, it is possible to easily produce a hot water carbonated spring for health promotion.

  Moreover, the structure which provides the water level detection sensor which can detect the water level of the said pressurization dissolution tank and the said air release tank as a gas solution manufacturing system is also possible. The circulation pump may further include a water level adjusting means for changing the flow rate of water led from the atmosphere open tank to the pressurized dissolution tank according to the water level of the water level sensor.

  Further, the gas solution manufacturing system may be provided with a gas concentration detection sensor for detecting a predetermined gas concentration in a region where the atmosphere open tank or the pressure dissolution tank is disposed. Further, it is possible to provide a warning device capable of outputting a warning when the gas concentration becomes larger or smaller than a predetermined threshold value. By further providing these devices, it is possible to detect an abnormal value of the gas concentration.

<Effect>
The gas solution production system as described above can efficiently produce a gas supersaturated solution having a high concentration.

DESCRIPTION OF SYMBOLS 10 ... Gas solution manufacturing system, 11 ... Atmospheric release tank, 12 ... Pressure dissolution tank, 13 ... Circulation pump, 14 ... Pressurized gas supply source, 15 ... Jet pump, 16 ... Restriction orifice, 15a ... Convergence flow path, 15b: First narrow flow path, 15c: Gas suction chamber, 15d: Gas introduction pipe, 15e: Second narrow flow path, 15f: Diffusion flow path, A: Gas from gas supply source, B: Pressure dissolution tank Gas layer, C ... Liquid layer of pressurized dissolution tank, D ... Pressurized liquid from circulation pump, E ... Pressurized gas from gas layer, F ... Pressurized gas solution, G ... Gas bubble, H ... Gas supersaturated dissolution liquid

Claims (6)

An atmosphere open tank that holds the gas solution, a pressure solution tank that generates the gas solution inside the pressurized state, a circulation pump that guides the liquid in the air open tank to the pressure solution tank, and a pressure solution tank A gas solution production system comprising a pressurized gas supply source for supplying pressurized gas,
The pressure dissolution tank is
In the upper part, a gas layer that is pressurized by a gas from a pressurized gas supply source, and
While holding both layers of the liquid layer that is pressurized at the same pressure at the bottom,
A pressurized gas solution whose gas solubility is increased by a jet pump configured to suck and mix the pressurized gas in the gas layer with the pressurized liquid introduced from the circulation pump and dissolve the gas at high speed is discharged to the liquid layer. ,
The atmosphere open tank has a restriction orifice for allowing the pressurized gas solution generated in the pressure dissolution tank to flow from the liquid layer, and is substantially large when the pressurized gas solution passes through the restriction orifice. A gas solution manufacturing system configured to hold a gas supersaturated solution that has become a bubble liquid, which is a liquid containing small gas bubbles that are generated by being in an atmospheric pressure state.   The gas solution manufacturing system according to claim 1, wherein the liquid is water and the gas is carbon dioxide.   The gas solution production system according to claim 1 or 2, wherein the pressure of the pressure dissolution tank is 0.1 MPa or more and 0.3 MPa or less.   The gas solution production system according to claim 1 or 2, wherein the pressure of the pressure dissolution tank is 0.2 MPa or more and 0.3 MPa or less.   The gas solution production system according to any one of claims 1 to 4, wherein a discharge port of the jet pump is in a liquid layer of a pressure dissolution tank.   The gas solution production system according to any one of claims 1 to 5, further comprising a heating unit for heating the gas solution.

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