Gas cartridges and hydrogen carbonated water production equipment

Abstract

To provide means for providing hydrogen carbonated water of stable quality in a form which is easy to handle.SOLUTION: A gas cartridge includes a pressure-resistant container and a liquefied gas filled inside the pressure-resistant container. The pressure-resistant container has a tank having an interior space to contain the liquefied gas, and a mouth that seals between the tank and the exterior of the pressure-resistant container. The liquefied gas includes liquefied carbon dioxide gas, and hydrogen dissolved in the liquefied carbon dioxide gas at a ratio of 500 wt.ppm or more and 4,500 wt.ppm or less.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a gas cartridge and a hydrogen carbonated water manufacturing device. [Background technology]

[0002] Water containing hydrogen and carbon dioxide is known. For example, Patent Document 1 describes a method for producing hydrogen water, which includes a step of subjecting raw water to fine bubble dispersion treatment of a mixed gas of hydrogen and carbon dioxide. According to the production method of Patent Document 1, hydrogen water containing carbon dioxide can be produced. Patent Document 2 describes hydrogen water containing carbon dioxide, which contains 0.2 ppm to 1.2 ppm of hydrogen and 1000 ppm to 3000 ppm of carbon dioxide relative to the water.

[0003] On the other hand, it is known that carbon monoxide, hydrogen, nitrogen, etc. are dissolved in crude liquefied carbon dioxide gas (Patent Document 3). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2015-188789 A [Patent Document 2] JP 2019-48793 A [Patent Document 3] Japanese Patent Application Publication No. 11-209117 Summary of the Invention [Problem to be solved by the invention]

[0005] Water containing hydrogen and carbon dioxide (hereinafter referred to as hydrogen carbonated water) is expected to be used for drinking, cooking, beauty, etc., and is expected to be used not only for commercial purposes but also for general households. Therefore, it is desirable to be able to provide hydrogen carbonated water of stable quality in an easy-to-handle manner. One of the objects of the invention according to the present disclosure is to provide a means for providing hydrogen carbonated water of stable quality in an easy-to-handle manner. [Means for solving the problem]

[0006] The gas cartridge according to the present disclosure includes a pressure-resistant container and a liquefied gas filled in the pressure-resistant container. The pressure-resistant container includes a tank having an internal space for storing the liquefied gas, and a mouth for sealing between the tank and the outside of the pressure-resistant container. The liquefied gas includes liquefied carbon dioxide gas and hydrogen dissolved in the liquefied carbon dioxide gas at a ratio of 500 wt.ppm to 4500 wt.ppm. Effect of the Invention

[0007] The gas cartridge of the present disclosure provides a means for providing hydrogen carbonated water of stable quality in an easy-to-handle manner. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram of a gas cartridge according to the present disclosure. [Diagram 2] FIG. 2 is a schematic diagram of an apparatus for producing hydrogen carbonated water according to the present disclosure. [Diagram 3] FIG. 3 is a schematic diagram showing a manufacturing process of the gas cartridge. [Figure 4] FIG. 4 is a schematic diagram of the apparatus used in the production test of hydrogen-containing liquefied carbon dioxide gas. [Diagram 5] FIG. 5 is a graph showing the relationship between the hydrogen gas partial pressure (MPa) relative to the liquefied carbon dioxide gas at the time of filling and the hydrogen concentration (%) after the hydrogen-containing liquefied carbon dioxide gas is taken out and vaporized. [Figure 6]FIG. 6 is a graph showing the change over time in the hydrogen concentration (%) in the hydrogen / carbon dioxide mixed gas extracted from the liquid phase of the gas cartridge. [Figure 7] FIG. 7 is a graph showing the change over time in the hydrogen concentration (%) in the hydrogen / carbon dioxide mixed gas extracted from the gas phase of the gas cartridge. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] [Outline of the embodiment] The gas cartridge of the present disclosure includes a pressure-resistant container and a liquefied gas filled in the pressure-resistant container. The pressure-resistant container includes a tank having an internal space for storing the liquefied gas, and a mouth for sealing between the tank and the outside of the pressure-resistant container. The liquefied gas includes liquefied carbon dioxide gas and hydrogen dissolved in the liquefied carbon dioxide gas at a ratio of 500 wt.ppm to 4500 wt.ppm. In this specification, the term "gas cartridge" refers to a gas supply container that is replaceable in a hydrogen carbonated water production device and contains gas inside. The term "gas cartridge" in this specification is not limited to what is called a cartridge in the market, but also includes a gas supply container called a cylinder.

[0010] Conventionally, in the production of hydrogen carbonated water, it is known that a hydrogen container and a carbon dioxide container are provided separately, and the hydrogen gas and carbon dioxide gas supplied from these containers are mixed in a mixer and then injected into raw water (for example, Patent Document 1 and Patent Document 2). However, it is not practical to provide a hydrogen container and a carbon dioxide container separately, and to install and use a complex device including a mixer, etc., in an ordinary home. In addition, a mixed gas obtained by mixing carbon dioxide and hydrogen in a gaseous state has a large volume and cannot be supplied in a compact form, making it difficult to handle.

[0011] Therefore, the inventors conceived of creating a gas cartridge in which hydrogen and carbon dioxide are stored in one container. Liquefied carbon dioxide gas containing hydrogen is publicly known (for example, Patent Document 3). However, the liquefied gas disclosed in Patent Document 3 contains hydrogen and the like as impurities in the liquefied carbon dioxide gas. In the invention of Patent Document 3, the hydrogen contained in the liquefied carbon dioxide gas is converted to water in the liquefied carbon dioxide gas and removed. Patent Document 3 does not consider how to continuously and stably extract liquefied carbon dioxide gas with dissolved hydrogen.

[0012] The inventors have conducted research based on the above concept and have found that in order to provide hydrogen carbonated water of stable quality, the ratio of hydrogen to carbon dioxide must be maintained within a certain range even when hydrogen and carbon dioxide are continuously drawn from one container. As a result of further research, the inventors have found that the above gas cartridge can solve this problem.

[0013] According to the gas cartridge of the present disclosure, a hydrogen-carbon dioxide mixed gas with a stable hydrogen and carbon dioxide content ratio can be obtained even when the contents are continuously taken out from one gas cartridge. Therefore, it is easy to handle, and even a user without specialized knowledge in an ordinary household can easily make hydrogen carbonated water. In addition, since a cartridge that contains liquefied carbon dioxide gas containing hydrogen is provided, it is compact and easy to handle.

[0014] In the gas cartridge, the pressure in the pressure-resistant container can be 7 MPa or more and 11 MPa or less. If the pressure in the tank is within this range, the amount of hydrogen that can provide the effect of hydrogen carbonated water can be stably contained in the liquefied carbon dioxide gas.

[0015] In the gas cartridge, the partial pressure of hydrogen can be 1 MPa or more and 5 MPa or less, while the partial pressure of carbon dioxide is 6 MPa at an ambient temperature of 25 degrees. In this range, the amount of hydrogen that can obtain the effect of hydrogen carbonated water can be stably contained in the liquefied carbon dioxide. At this time, a part of the carbon dioxide contained in the gas cartridge is liquefied, and both carbon dioxide gas (gas) and liquefied carbon dioxide (liquid) are present in the cartridge.

[0016] The hydrogen carbonated water manufacturing apparatus according to the present disclosure includes the gas cartridge, a gas extraction unit connected to the mouth of the gas cartridge, and a holder for holding a bottle containing a raw liquid. The gas extraction unit may include a communication unit that communicates a liquid phase of the liquefied gas filled in the gas cartridge with the outside of the gas cartridge. By extracting gas from the liquid phase of the liquefied carbon dioxide gas in which hydrogen is dissolved, hydrogen carbonated water with a stable hydrogen concentration can be continuously obtained.

[0017] In the manufacturing apparatus, the communication part may be connected to the liquid source contained in the bottle. By feeding hydrogen-containing liquefied carbon dioxide gas into the liquid source, carbonated water containing a sufficient amount of hydrogen can be stably manufactured.

[0018] In the manufacturing apparatus, the communication portion may be a tubular member made of metal or resin. With this configuration, even when gas exceeding normal pressure is extracted from the gas cartridge, the gas can be extracted safely and stably.

[0019] In the manufacturing apparatus, the amount of the liquefied gas injected per 1 L of the raw liquid contained in the bottle can be 3 L to 8 L. Here, 3 L to 8 L means 3 L to 8 L of mixed gas of carbon dioxide and hydrogen at 25°C and 1 atm. With this configuration, the effect of hydrogen carbonated water can be expected, and delicious hydrogen carbonated water suitable for drinking can be obtained.

[0020] [Embodiment 1] (Gas cartridge) 1 is a schematic diagram of a gas cartridge according to the present disclosure. The gas cartridge 1 includes a pressure-resistant container 11 and a liquefied gas 51 filled in the pressure-resistant container. The pressure-resistant container 11 includes a tank 21 having an internal space for accommodating the liquefied gas 51, and a mouth portion 31 that seals between the tank 21 and the outside of the pressure-resistant container 11 in an openable and closable manner.

[0021] The liquefied gas 51 filled in the gas cartridge 1 is liquefied carbon dioxide gas (hereinafter sometimes referred to as LCO2), which is hydrogen-containing LCO2 in which hydrogen has been dissolved. The concentration of hydrogen dissolved in LCO2 can be 500 wt.ppm or more and 4500 wt.ppm or less. If the concentration of hydrogen dissolved in LCO2 is 500 wt.ppm or more, hydrogen carbonated water containing hydrogen and carbon dioxide gas can be obtained, and hydrogen carbonated water that is practical can be obtained. If the concentration of hydrogen dissolved in LCO2 is 4500 wt.ppm or less, the hydrogen gas concentration relative to carbon dioxide gas when hydrogen gas and carbon dioxide gas are taken out of the gas cartridge is about 10 vol.% / CO2bal. or less, and hydrogen carbonated water with a high hydrogen concentration can be obtained.

[0022] In addition, the concentration of hydrogen dissolved in LCO2 is preferably 869 wt.ppm or more and 3596 wt.ppm or less. If the hydrogen concentration is 869 wt.ppm or more, the hydrogen gas concentration relative to the carbon dioxide gas when hydrogen gas and carbon dioxide gas are extracted from the gas cartridge is about 2.0 vol.% / CO2 bal. or more, making it easier to obtain the effect of hydrogen carbonated water. If the hydrogen concentration is 3596 wt.ppm or less, the hydrogen gas concentration relative to the carbon dioxide gas when hydrogen gas and carbon dioxide gas are extracted from the gas cartridge is about 8.3 vol.% / CO2 bal. or less, making it possible to obtain a practical gas cartridge that can be handled without safety issues. It is more preferable that the concentration of hydrogen dissolved in LCO2 is 1068 wt.ppm or more and 3596 wt.ppm or less. If the hydrogen concentration is 1068 wt.ppm or higher, the hydrogen gas concentration relative to the carbon dioxide gas when the contents (hydrogen gas and carbon dioxide gas) are removed from the gas cartridge will be 2.5 vol.% / CO2 bal. or higher, which will provide sufficient hydrogen concentration for hydrogen carbonated water and allow better effects to be expected.

[0023] The liquefied gas 51 contained in the gas cartridge 1 is preferably composed of carbon dioxide (CO2) and hydrogen (H2). In addition to carbon dioxide and hydrogen, the liquefied gas 51 may contain unavoidable impurities.

[0024] The specific shape of the gas cartridge 1 is not particularly limited. As an example, a pressure-resistant container 11 including a cylindrical hollow tank 21 and a mouth part 31 connected to one end of the tank 21 in the longitudinal direction and having a smaller diameter than the tank 21 can be used. The material of the tank 21 is not particularly limited, and a tank made of metal such as aluminum or stainless steel or various alloys can be used. The mouth part 31 may have a screw groove or a rim formed on the outer circumferential surface so as to be fixed to the hydrogen carbonated water production device ([Fig. 2]). The mouth part 31 may be sealed with a plug such as a resin or metal plug, and may be opened when the cartridge 1 is attached to the hydrogen carbonated water production device. In addition, the cartridge 1 has a pressure adjustment mechanism 15, which is a depressurization port connected to the mouth part 31, a safety valve for releasing gas in the event of an abnormality, etc.

[0025] The capacity of the gas cartridge 1 is not particularly limited. For example, the capacity of the tank may be about 5 mL to 1000 mL, and is more preferably 10 mL to 600 mL in practical use. Considering ease of handling in a general household, it is also preferable that the capacity is less than 100 mL. The amount of liquefied gas contained in the tank may be, for example, about 5 g to 800 g (unopened), and is more preferably about 10 g to 600 g in practical use. The gas cartridge 1 may be a one-time disposable cartridge, or may be capable of supplying gas in multiple portions. The gas cartridge 1 may be disposable, or may be refilled with liquefied gas and recyclable.

[0026] (Hydrogen carbonated water production equipment) FIG. 2 is a schematic diagram of a hydrogen carbonated water manufacturing device according to the present disclosure. The hydrogen carbonated water manufacturing device 7 is a device that extracts hydrogen and carbon dioxide from the gas cartridge 1 according to the present disclosure and injects them into a raw liquid to produce hydrogen carbonated water. The manufacturing device 7 includes a main body 71, a gas extraction unit 72, and a holding unit 74 that holds a bottle 73 that contains a raw liquid (e.g., water). The gas extraction unit 72 includes a communication unit 75. The communication unit 75 communicates the liquid phase portion of the liquefied gas 51 contained in the gas cartridge 1 with the inside of the bottle 73. A nozzle 76 is provided at the tip of the communication unit 75. The manufacturing device 7 is configured to extract hydrogen-containing LCO2 from the liquid phase portion of the liquefied gas 51, so that the hydrogen concentration in the mixed gas (mixed gas of hydrogen and carbon dioxide) is stabilized even when gas is continuously extracted from one cartridge.

[0027] The specific configuration of the manufacturing device 7 is not limited and may be various. In the example of FIG. 2, the cartridge 1 is held so that the mouth portion 31 faces vertically downward, but is not limited to this. For example, the cartridge 1 may be held so that the mouth portion 31 faces upward, and the communication portion 75 may be inserted from above the cartridge 1 to reach near the bottom surface inside the cartridge 1. In addition, the communication portion 75 may be composed of a first portion integrated with the gas cartridge 1 and a second portion connected to the first portion and provided in the manufacturing device 7.

[0028] Furthermore, the configuration of the manufacturing device 7 is not limited to the example shown in FIG. 2, and may include a tank for storing raw liquid, and a mixer for mixing the mixed gas extracted from the cartridge 1 with the raw liquid. In this case, the mixture of the mixed gas and raw liquid produced in the mixer (hydrogen carbonated water) may be extracted from an outlet. The raw liquid is typically water, but is not limited to water. The raw liquid may be water containing flavorings, sweeteners, and other ingredients, or it may be juice, alcoholic beverages, etc.

[0029] There is no particular limitation on the specific configuration of the communication part 75. For example, it may be a form in which a tubular member (tube) made of metal or resin is inserted into the liquid phase part of the liquefied gas 51. In addition, a supply amount adjusting member such as a valve or a needle valve may be provided continuous with the communication part 75 or in the middle of the communication part 75.

[0030] (Gas cartridge manufacturing method) FIG. 3 shows an example of a manufacturing system for manufacturing a gas cartridge according to the present disclosure. Referring to FIG. 3, the manufacturing system 61 includes a cylinder 62, which is a container for storing liquefied carbon dioxide gas, and a cylinder 63, which is a container for storing hydrogen gas, as a supply source of raw gas. Each of them is provided with a pressure reducing valve 81, 82. First, the pressure reducing valve 82 is closed, and the pressure reducing valve 81 and the valves 121, 122, and 123 are opened to extract LCO2 from the cylinder 62 and introduce LCO2 into the mixing tank 65 via the extraction tank 64. The mixing tank 65 is provided with a thermometer 131 and a pressure gauge 132. The amount of LCO2 to be filled can be, for example, about 3.0 MPa to 7.0 MPa.

[0031] Here, it is preferable to use a gas with high purity as the raw material. As the liquefied carbon dioxide gas, it is preferable to use a gas with a purity of 99.980 vol% or more and a water content of 0.012 vol% or less as an impurity. As the hydrogen gas, it is preferable to use a gas with a purity of 99.9999 vol% or more. However, the carbon dioxide gas and the hydrogen gas may be changed depending on the application of the hydrogen carbonated water, and are not limited thereto.

[0032] Next, pressure reducing valve 81 is closed and pressure reducing valve 82 is opened, and hydrogen gas is filled by bubbling into LCO2 introduced into extraction tank 64 and mixing tank 65. Although not shown, the amount of hydrogen dissolved in LCO2 can be increased by using a bubbling nozzle, for example. The amount of hydrogen gas to be filled can be such that the pressure becomes about 3.5 MPa to 14.5 MPa.

[0033] Next, pressure reducing valve 82 and valves 121, 122, and 123 are closed and the mixture is left to stand until the predetermined pressure and temperature are reached. Once it is confirmed that the predetermined pressure and temperature have been reached, hydrogen-containing LCO2 is obtained.

[0034] Valves 122, 123 are opened and closed to transfer hydrogen-containing LCO2 from the liquid phase portion of mixing tank 65 to extraction tank 64. Extraction tank 64 can also be replaced with a gas cartridge, and the gas cartridge can be filled with hydrogen-containing LCO2. The filling pressure of the gas cartridge is not particularly limited, but can be, for example, 7 MPa or more and 11 MPa or less (when unused). In addition, the ratio of carbon dioxide to hydrogen can be, for example, 1 MPa or more and 5 MPa or less for carbon dioxide partial pressure 6 MPa and hydrogen partial pressure, at an ambient temperature of 25 degrees.

[0035] (Method of producing hydrogen carbonated water) A method for producing hydrogen carbonated water using the gas cartridge and production device according to the present disclosure will be described. Hydrogen carbonated water can be produced in accordance with a method for producing general carbonated water. When water is used as the raw liquid, water at room temperature may be used, and it is also preferable to use water at about 0 to 10°C.

[0036] In the production of hydrogen carbonated water, hydrogen-containing LCO2 may be sprayed from a nozzle into the raw liquid in a bottle installed in the device and mixed with the raw liquid. Alternatively, the raw liquid and hydrogen-containing LCO2 may be mixed in a mixer and then transferred to a bottle. The hydrogen-containing LCO2 extracted from the gas cartridge may be directly injected into the raw liquid through a communication part of the production device. A vaporization part may be provided in the extraction path. When a vaporization part is provided, the hydrogen-containing LCO2 extracted from the liquid phase is vaporized and then injected into the raw liquid.

[0037] The amount of hydrogen-containing LCO2 injected into the raw liquid is not particularly limited. For example, in the case of drinking hydrogen carbonated water, about 3L to 8L of hydrogen-containing LCO2 gas can be injected into 1L of water, and about 4L to 7L is more preferable. Such an amount of hydrogen-containing LCO2 can be provided in a form housed in a disposable gas cartridge with a capacity of about 10mL to 15mL. In this range, the effect of hydrogen carbonated water can be expected, and the deliciousness of carbonated water can be obtained. In addition, in the case of hydrogen carbonated water for beauty (for example, bath, etc.), about 30 to 45L of hydrogen-containing LCO2 gas can be injected into about 200 to 280L of water. The volume of hydrogen-containing LCO2 gas here means the volume of a mixed gas of carbon dioxide and hydrogen at 25°C and 1 atm. Note that this does not necessarily mean that the injection is performed under the conditions of 25°C and 1 atm. The injection of hydrogen-containing LCO2 into the feed liquid may be carried out at any temperature, for example between 0° C. and 100° C., and at any pressure, for example between 1 atm and 10 atm.

[0038] [Example] (Test 1: Production and evaluation of hydrogen-containing LCO2) Using the device shown in FIG. 4, LCO2 (general grade, Iwatani Fine Gas Co., Ltd.) was filled at 6.0 to 6.5 MPa from the bottom of a sight glass (capacity 30 mL, model number OD120127 T-12031, manufactured by Taiatsu Glass Industry Co., Ltd.) equipped with a thermometer, pressure gauge, and temperature sensor for measuring liquid temperature. Then, H2 (industrial grade, manufactured by Iwatani Fine Gas Co., Ltd.) was filled under pressure at 1.0 to 3.0 MPa from the bottom of the sight glass. The mixture was left to stand for about 15 minutes until the specified temperature and pressure (temperature 25°C, total pressure 7.0 to 9.5 MPa) were reached, and hydrogen-containing LCO2 was obtained. The series of operations was carried out in an environment with an ambient temperature of 25°C. At this time, the concentration of hydrogen dissolved in the liquefied carbon dioxide was calculated to be 782 wt.ppm to 1866 wt.ppm.

[0039] Next, 5 mL of hydrogen-containing LCO2 was separated using a 5 mL stainless steel tube (1 / 4 inch stainless steel tube) attached to the bottom of the sight glass and collected in a cylinder (volume 1000 mL, Swagelok Corporation, stainless steel sample cylinder 304L-HDF4-1000). The hydrogen-containing LCO2 collected in the cylinder was analyzed by gas chromatography using a gas chromatography device (model number GPA-20, Yanaco Corporation).

[0040] The results of the gas chromatography analysis are shown in the graph in Figure 5. As shown in Figure 5, it was confirmed that the hydrogen gas partial pressure (MPa) at the time of filling LCO2 is proportional to the hydrogen concentration (%) (concentration of hydrogen relative to carbon dioxide) after the hydrogen-containing LCO2 is extracted and vaporized. It was also confirmed that it is possible to supply hydrogen-containing carbon dioxide gas containing hydrogen gas on the order of a percentage relative to carbon dioxide.

[0041] (Test 2: Example of production and extraction of hydrogen-containing LCO2) Using the device shown in FIG. 4, LCO2 (general grade, Iwatani Fine Gas Co., Ltd.) was filled at 6.0 to 6.5 MPa from the bottom of a sight glass (capacity 30 mL, model number OD120127 T-12031, manufactured by Taiatsu Glass Industry Co., Ltd.) equipped with a thermometer and a pressure gauge. Next, H2 (industrial grade, manufactured by Iwatani Fine Gas Co., Ltd.) was filled at 2.0 MPa from the bottom of the sight glass. The mixture was left to stand for about 15 minutes until the specified temperature and pressure were reached, and hydrogen-containing LCO2 was obtained. The series of operations was carried out in an environment with an ambient temperature of 25°C. At this time, the concentration of hydrogen dissolved in the liquefied carbon dioxide was calculated to be 1390 wt.ppm.

[0042] Next, a 1000mL cylinder (Swagelok, stainless steel cylinder for sampling 304L-HDF4-1000) connected to the bottom of the sight glass was filled with hydrogen-containing LCO2, and the liquid phase was completely vaporized. The vaporized gas was directly introduced into a gas chromatography device (model number GPA-20, Yanaco) and gas chromatography analysis was performed. The sample flow rate was 100mL / min, and the sample acquisition interval was 5 minutes / time.

[0043] The results are shown in the graph in Figure 6. Figure 6 shows the time (minutes) elapsed from the start of measurement and the hydrogen concentration (%) (concentration of hydrogen relative to carbon dioxide) at each time. As Figure 6 shows, it was confirmed that a stable high hydrogen concentration was maintained from immediately after extraction began until 40 minutes later, when the pressure inside the cylinder reached 0 MPa.

[0044] (Test 3: Comparative Example) Hydrogen-containing LCO2 was obtained using the same method and conditions as above. Next, the gas phase in the sight glass was supplied to a gas chromatography device (same as in Test 2) with the secondary pressure of the pressure reducing valve installed at the top of the sight glass set to 0.1 MPa and the flow rate set to 10 mL / min, and gas chromatography analysis was performed. After that, the gas phase was blown from the top of the sight glass at a flow rate of 100 mL / min for 5 or 10 minutes. This operation was repeated until the total pressure in the sight glass reached 0 MPa.

[0045] The results are shown in the graph in Figure 7. Figure 7 shows the time (minutes) elapsed from the start of measurement and the hydrogen concentration (%) (concentration of hydrogen relative to carbon dioxide) at each time. As shown in Figure 7, the hydrogen concentration was 15% immediately after extraction began, decreased over time, and was 1% at the end. From these results, it was considered difficult to supply hydrogen at a stable concentration when extracting from the gas phase.

[0046] It should be understood that the embodiments and examples disclosed herein are illustrative in all respects and are not limiting in any respect. The scope of the present invention is defined by the claims, not the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0047] 1 gas cartridge, 11 pressure-resistant container, 15 pressure adjustment mechanism, 21 tank, 31 mouth, 51 liquefied gas, 61 production system, 62, 63 cylinder, 64 extraction tank, 65 mixing tank, 7 production device, 71 main body, 72 gas extraction part, 73 bottle, 74 holding part, 75 communication part, 81, 82 pressure reducing valve, 121, 122, 123 valve

Claims

1. A pressure vessel; A liquefied gas filled in the pressure-resistant container; A gas cartridge comprising: The pressure vessel comprises: A tank having an internal space for containing the liquefied gas; a mouth portion that seals between the tank and the outside of the pressure-resistant container; Equipped with The liquefied gas is Liquefied carbon dioxide gas, and hydrogen dissolved in the liquefied carbon dioxide gas at a ratio of 500 wt. ppm to 4500 wt. ppm. Gas cartridge for producing hydrogen carbonated water.

2. 2. The gas cartridge according to claim 1, wherein a pressure inside the pressure-resistant container is 7 MPa or more and 11 MPa or less.

3. 3. The gas cartridge according to claim 1, wherein the liquefied gas contained in the pressure-resistant container has a hydrogen partial pressure of 1 MPa or more and 5 MPa or less, relative to a carbon dioxide partial pressure of 6 MPa at an ambient temperature of 25 degrees.

4. The gas cartridge according to any one of claims 1 to 3, a gas outlet connected to the mouth of the gas cartridge; a holder for holding a bottle containing the raw material liquid; A hydrogen carbonated water manufacturing apparatus comprising: The gas extraction unit includes: A communication part that communicates a liquid phase part of the liquefied gas filled in the gas cartridge with the bottle, Hydrogen carbonated water production equipment.

5. 5. The hydrogen carbonated water manufacturing apparatus according to claim 4, wherein the communication portion communicates with the liquid material contained in the bottle.

6. 6. The hydrogen carbonated water producing apparatus according to claim 4 or 5, wherein the communication part is a tubular member made of metal or resin.

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