KR20230091175A - Carbon dioxide injection device and injection method - Google Patents

Abstract

In the carbon dioxide injection device 10, a gas cartridge 14 filled with carbon dioxide gas (CG), a gas pipe 18 connected at one end to the gas cartridge 14, and carbon dioxide gas discharged from the gas cartridge 14 A regulator 20 for adjusting (CG) to a predetermined pressure or less and the other end of a gas pipe 18 are connected, and a container to which a container 12 is connected for injecting carbon dioxide gas (CG) into the liquid LQ. The connection part 22 and the gas injection part 28 are connected to the inside of the container 12 at one end, and at the other end side, to form a path for releasing the gas inside the container 12 when opened. A release mechanism 30 having a release path portion 32 having an opening/closing portion 37 configured to be openable and closed, and a control unit 38 controlling the opening/closing portion is provided.

Description

Carbon dioxide injection device and injection method

The present invention relates to a carbon dioxide gas injection device and injection method.

Conventionally, there has been a need for carbonated beverages for the purpose of finding a refreshing feeling when drinking. The need for carbonated beverages has recently been expanding in the form of carbonated beverages with a high gas volume to obtain a stronger refreshing feeling, or needs for injecting carbonic acid independently into beverages along with the rise in health-oriented beverages. Patent Literature 1 discloses a carbonation system including a carbonation head for carbonating liquid in a bottle, and a pressure release unit for gradually releasing excess pressure from the bottle after carbonation.

However, in the carbonation system disclosed in Patent Literature 1, it is assumed that the carbon dioxide gas in the gas cylinder is injected into the liquid in the bottle at high pressure. Since the internal pressure of the gas cylinder gradually decreases by using the carbon dioxide gas, it becomes gradually difficult to inject the carbon dioxide gas into the liquid at high pressure. For this reason, there is a possibility that the gas volume of the carbon dioxide gas injected into the liquid becomes difficult to stabilize, and there is a possibility that the service period of the gas cylinder becomes relatively short.

Patent Document 1: US Patent Application Publication No. 2015/0151258 Specification

An object of the present invention is to provide a carbon dioxide injection device and injection method capable of injecting carbon dioxide gas at a low pressure to a high gas volume into a liquid filled in a container.

According to the present invention, it is provided between a gas supply source filled with carbon dioxide gas, a gas supply passage connected at one end to the gas supply source, and the gas supply source and the gas supply passage, so that the carbon dioxide gas discharged from the gas supply source is reduced to a predetermined pressure or less. An adjusting mechanism for adjustment, the other end of the gas supply passage is connected, and a container connecting part to which the container is connected in order to inject carbon dioxide gas from a gas supply source into the container into which the liquid has been injected, and the liquid inside the container from the other end of the gas supply passage. A release having a gas injecting part for injecting carbon dioxide gas into the container, and an opening and closing part having one end connected to the inside of the container and configured to open and close so as to form a path for releasing the gas inside the container when opened at the other end. There is provided a carbon dioxide injection device having a release mechanism having a path portion and a control portion controlling opening and closing of the opening and closing portion.

Further, according to another aspect of the present invention, a gas supply source filled with carbon dioxide gas, a gas supply path connected at one end to the gas supply source, and a carbon dioxide gas discharged from the gas supply source provided between the gas supply source and the gas supply path An adjustment mechanism for adjusting the pressure below a predetermined pressure, a container connection portion to which the container is connected to inject carbon dioxide gas from a gas supply source into the container to which the other end of the gas supply passage is connected, and into which the liquid has been injected, and the gas supply passage. A gas injection part for injecting carbon dioxide gas into the liquid inside the container from the other end, and an extension having one end connected to the inside of the container and having a path for releasing the gas inside the container from the other end, and configured to expand the cross-sectional area of the path. There is provided a carbon dioxide injection device having a release path portion having a portion and a release mechanism having a control portion controlling expansion of the enlargement portion.

Further, according to the present invention, a gas supply source filled with carbon dioxide gas, a gas supply path connected at one end to the gas supply source, and provided between the gas supply source and the gas supply path, the carbon dioxide gas discharged from the gas supply source is discharged under a predetermined pressure. An adjustment mechanism for adjusting the following is connected to the other end of the gas supply passage, and a container connecting portion to which the container is connected in order to inject carbon dioxide gas from a gas supply source into the container into which the liquid has been injected, and the inside of the container from the other end of the gas supply passage. A gas injection unit for injecting carbon dioxide into the liquid of the container, one end of which is connected to the inside of the container, and an opening and closing portion configured to open and close so as to form a path for releasing gas inside the container when opened at the other end. A carbon dioxide gas injection device comprising a release path portion having a release path portion and a release mechanism having a control portion controlling opening and closing of the opening/closing portion, comprising: a first release step of releasing a gas having a flow rate smaller than that of carbon dioxide gas injected into a liquid inside the container; , a carbon dioxide gas injection method having a second release step of releasing gas at a flow rate greater than that of the first release step.

Further, according to another aspect of the present invention, a gas supply source filled with carbon dioxide gas, a gas supply path connected at one end to the gas supply source, and a carbon dioxide gas discharged from the gas supply source provided between the gas supply source and the gas supply path An adjustment mechanism for adjusting the pressure below a predetermined pressure, a container connection portion to which the container is connected to inject carbon dioxide gas from a gas supply source into the container to which the other end of the gas supply passage is connected, and into which the liquid has been injected, and the gas supply passage. A gas injection part for injecting carbon dioxide gas into the liquid inside the container from the other end, and an extension having one end connected to the inside of the container and having a path for releasing the gas inside the container from the other end, and configured to expand the cross-sectional area of the path. A carbon dioxide gas injection device comprising a release path portion having a portion and a release mechanism having a control portion controlling expansion of the expansion portion, wherein a first release step of releasing a gas having a flow rate smaller than that of the carbon dioxide gas injected into the liquid inside the container. and a second release step of releasing gas at a flow rate greater than that of the first release step.

According to the carbon dioxide gas injection device of the present invention, an adjustment mechanism for adjusting the carbon dioxide gas discharged from the gas supply source to a predetermined pressure or less is provided between the gas supply source and the gas supply passage. For this reason, carbon dioxide gas can be injected into the liquid inside the container at a low pressure. Further, the carbon dioxide gas injection device includes a release mechanism having one end connected to the inside of the container and having a release passage portion capable of forming a passage for releasing the gas inside the container from the other end. The release mechanism also has an opening/closing portion configured to open and close the pathway, or an extension portion configured to expand the sectional area of the pathway, and a control unit for controlling them. For this reason, the carbon dioxide gas injection device can release the gas inside the container simultaneously with and/or before and after injection of the carbon dioxide gas into the container. Since there is usually a space containing air (hereinafter referred to as a head space) on the side of the container connection part of the container into which the liquid is injected, a mixed gas of air and carbon dioxide is present in the head space immediately after the injection of carbon dioxide gas into the container is started. exists. The release mechanism can release a portion of the gas mixture in the headspace by releasing the gas inside the container during injection of the carbon dioxide gas into the container until a desired gas volume is reached. Since carbon dioxide gas can be further injected into the headspace from which part of the mixed gas has been released, the concentration (material amount) of the carbon dioxide gas in the headspace can be increased, thereby reducing the concentration (material amount) of the carbon dioxide gas inside the liquid. can increase

According to Henry's law, assuming that the temperature inside the container is constant, the amount of carbon dioxide (gas) that can be dissolved in a certain amount of liquid (solvent) is proportional to the pressure of the carbon dioxide gas. Since carbon dioxide gas can be newly injected while releasing a part of the mixed gas by the release mechanism, the concentration (substance amount) of carbon dioxide gas in the head space can be increased. Since the volume of the head space in the container hardly changes (increases), the pressure of the carbon dioxide gas in the head space can be increased. Accordingly, carbon dioxide gas can be injected at a high gas volume into the container into which the liquid has been injected, without previously increasing the pressure in the container to a high level or increasing the pressure of the carbon dioxide gas injected into the container.

According to the carbon dioxide injection method of the present invention, the method includes a first releasing step of releasing gas at a flow rate smaller than that of the carbon dioxide gas injected into the liquid inside the container, and a second releasing step of releasing a gas at a larger flow rate than the first releasing step. have a liberation phase. In the first releasing step, by releasing the gas at a flow rate smaller than that of the carbon dioxide gas injected into the liquid inside the container, it is possible to release a part of the mixed gas from the headspace while suppressing the outflow of the injected carbonic acid gas. As a result, carbon dioxide gas can be injected. Further, in the second release step, by releasing gas at a flow rate higher than that in the first release step, the pressure inside the container in which the injection of the carbon dioxide gas into the liquid can be reduced (extracted) in a short time, and the carbon dioxide gas can be released into the liquid. Excessive pressure rise in the container during injection can be suppressed or prevented. In this way, low-pressure carbon dioxide gas can be injected into the liquid in a short time to a high gas volume.

With the carbon dioxide gas injection device and injection method according to the present invention, low-pressure carbon dioxide gas can be injected into a liquid filled in a container up to a high gas volume.

1 shows a schematic diagram of a carbon dioxide injection device according to a first embodiment of the present invention.
Fig. 2 shows a flow chart of the carbon dioxide gas injection method according to the first embodiment.
Fig. 3 shows a schematic diagram of a carbon dioxide injection device according to a modification of the first embodiment.
4 shows a schematic diagram of a carbon dioxide injection device according to a second embodiment of the present invention.

(First Embodiment)

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a carbon dioxide gas injection device and injection method according to the first embodiment will be described with reference to the accompanying drawings. The same code|symbol is attached|subjected to the same or corresponding element, and redundant description is abbreviate|omitted. In order to facilitate understanding, there are cases in which the scale of the drawings is changed and described.

Fig. 1 shows a schematic view of the internal structure of a carbon dioxide gas injection device 10 (hereinafter referred to as "injection device 10") according to the present embodiment when viewed from the side. The internal configuration of the injection device 10 is normally covered by a housing not shown, but here, for explanation, a state without the housing is shown. In the figure, the up-down direction and the horizontal direction of the device when the injection device 10 is placed on a horizontal surface are indicated by arrows. UP in the drawing indicates the upper side of the device, and W indicates the horizontal direction of the device.

The injection device 10 attaches a container 12 (beverage container) into which liquid LQ as a beverage such as water or juice is partially injected, and injects carbon dioxide gas (CG) into the attached container 12. It is a device for producing carbonated beverages by doing. Accordingly, it is possible to produce a carbonated beverage capable of obtaining a stronger sense of exhilaration (stimulation) with a high gas volume. The container 12 just needs to have strength against a predetermined internal pressure, and may be formed of various materials such as resin, metal, and glass.

On one side of the device horizontal direction of the injection device 10, a gas cartridge 14 filled with carbon dioxide gas (CG) as a gas supply source is disposed. The container 12 is supplied with carbon dioxide gas (CG) discharged from the gas discharge portion 16 of the gas cartridge 14 .

A regulator 20 as an adjustment mechanism is connected to the gas discharge unit 16, and the gas cartridge 14 is connected to one end of a gas pipe 18 as a gas supply path via the regulator 20. The regulator 20 is configured to adjust the pressure of the carbon dioxide gas (CG) discharged from the gas cartridge 14 to a predetermined pressure (for example, 1.0 MPa) or less.

In the gas pipe 18, the other end opposite to the gas discharge portion 16 is connected to a container connecting portion 22 for attaching the opening 12A of the container 12. Carbon dioxide gas (CG) supplied from the gas cartridge 14 is injected into the container 12 from a gas injection portion 28 serving as an end portion of the gas pipe 18 on the container connection portion 22 side. A container attachment portion 24 to which the gas pipe 18 passes and to which the container 12 is attached is provided substantially at the center of the container connection portion 22 . The container attaching portion 24 is formed to be detachable from the container connecting portion 22 and is provided in multiple numbers so that it can be exchanged corresponding to various shapes of the opening 12A of the container 12.

The container attaching portion 24 has a substantially cylindrical fitting portion 26 for inserting the opening portion 12A therein, and the inner peripheral surface of the fitting portion 26 is the opening portion 12A of the container 12. It is formed to correspond to the shape of the outer circumferential surface of. For example, a female threaded portion is formed on the inner circumferential surface of one fitting portion 26 so as to correspond to the container 12 in which a male threaded portion is formed on the outer circumferential surface of the opening 12A (both not shown) to fit the opening 12A of the container 12. It can be screwed into part 26. Accordingly, the container 12 can be stably fixed to the injection device 10 . In addition, although the container 12 has been described here as being screwed into and attached to the container attachment portion 24, the container is not limited to this, and the container may be attached to the container attachment portion by being screwed in without using screws. .

The injection device 10 is provided with a release mechanism 30 for releasing gas inside the headspace HS of the container 12 to the outside of the container 12 . The release mechanism 30 is made of metal formed in a hollow tube shape so that one end is connected to the inside of the head space HS and forms a path for releasing the gas inside the head space HS from the other end side. It has a release path part (32). In the following description, the release path portion 32 is described as being made of metal, but it is not limited thereto and may be made of other materials such as resin having a predetermined rigidity.

The release path part 32 is branched from the first path 33 formed in communication with the other end side so that the gas inside the head space HS can always be released, and the first path 33 is opened. When the head space (HS) has a second path (34) in which a communication path is formed to release the gas inside. For this reason, the gas flowing into the release path portion 32 from the one end side connected to the inside of the head space HS is contained only from the first path 33 when the second path 34 is closed. (12) Unwind to the outside.

The cross-sectional area of the first passage 33 and the second passage 34 is smaller than the cross-sectional area of the passage of the gas pipe 18. In addition, the cross-sectional area of the first path 33 is formed larger than that of the second path 34 . For this reason, for example, when fluid having the same flow rate passes through, the flow rate of the first passage 33 is greater than that of the second passage 34.

The second passage 34 has an opening/closing portion 37 provided with a solenoid valve 36, and the opening/closing portion 37 is configured to communicate or close the second passage 34 by opening and closing the solenoid valve 36. has been In addition, in the following description, it is explained assuming that the solenoid valve 36 is provided in the second passage 34, but it is not limited to this, and the second passage includes a pressure valve that mechanically opens when the pressure exceeds a predetermined pressure. Other mechanisms may be installed.

The release mechanism 30 is provided with a control unit 38 for controlling opening and closing of the opening/closing unit 37 by controlling the solenoid valve 36 . The control unit 38 can control the opening and closing of the solenoid valve 36 so as to close the opening/closing unit 37 for a predetermined period of time and then open the opening/closing unit 37 for a predetermined period of time. Specifically, for example, after injection of the carbon dioxide gas (CG) into the liquid LQ inside the container 12 from the gas injection unit 28 starts, the gas volume GV of the liquid LQ reaches a desired value. The solenoid valve 36 is closed for a predetermined time until the gas volume GV reaches a desired value, the solenoid valve 36 is opened for a predetermined time, and the head space HS is discharged from the second path 34. The solenoid valve 36 can be controlled to release (push) unnecessary gas (carbon dioxide) inside.

The time interval for opening and closing the solenoid valve 36 can be set in advance by the control unit 38 . In addition, the injection device 10 is not limited to this, so that the user using the injection device 10 can open and close the opening/closing portion 37 by manipulating an operation panel (not shown) provided on the housing side of the injection device 10. ) may be configured. Accordingly, the user closes the opening/closing portion 37 for a predetermined time, in addition to starting and stopping the injection of carbon dioxide gas (CG) into the container 12, and then discharging the gas for a predetermined time through the opening/closing portion ( 37) can be manually operated.

Further, when releasing the carbon dioxide gas (CG) in the container 12, the gas pipe 18 may be provided with, for example, a check valve for preventing the carbon dioxide gas (CG) from flowing back to the gas cartridge 14.

Actions and effects of the present invention will be described based on the flow chart in FIG. 2 .

When the injection of carbon dioxide gas (CG) into the container 12 is started by the user's operation of the operation panel or the like, in step S10, the control unit 38 operates the solenoid valve 36 to open and close the opening/closing unit 37. shut down For this reason, immediately after injection of the carbon dioxide gas (CG) into the container 12, the mixed gas of the air and carbon dioxide gas (CG) existing inside the container 12 passes through the first path 33 only to the container 12 It is released (released) to the outside. Here, the cross-sectional area of the first passage 33 is formed to be smaller than the cross-sectional area of the passage of the gas pipe 18. For this reason, it is possible to release the mixed gas at a flow rate smaller than the flow rate of the carbon dioxide gas CG injected into the liquid LQ inside the container 12 (first release). This suppresses or prevents the carbon dioxide gas (CG) injected into the container 12 from the gas cartridge 14 from excessively flowing (coming out) through the first passage 33, and then the container 12 Carbon dioxide (CG) may be injected into the liquid (LQ) inside.

By the release mechanism 30, a part of the mixed gas of the headspace HS of the container 12 is released in parallel with the injection of the carbon dioxide gas (CG) into the container 12. Since carbon dioxide gas (CG) can be further injected into the head space HS from which a part of the mixed gas is released, the amount of carbon dioxide gas (CG) in the head space HS can be increased, and accordingly, the liquid ( LQ) can increase the amount of carbon dioxide (CG) inside.

Since the release of the mixed gas and the injection of the carbon dioxide gas (CG) are simultaneously performed by the release mechanism 30, the material amount of the carbon dioxide gas (CG) in the headspace HS increases step by step. At this time, since the volume of the head space HS of the container 12 hardly changes, the pressure of the carbon dioxide gas CG in the head space HS can be increased. Accordingly, the liquid LQ is injected into the container 12 without pressurizing the inside of the container 12 to a high level in advance or increasing the pressure of the carbon dioxide gas CG injected into the container 12 to a high pressure. For example, low-pressure carbon dioxide (CG) of 1.0 MPa or less may be injected into the liquid (LQ) up to a high gas volume (GV) of 4.0 GV or more.

Furthermore, when the control unit 38 determines that the gas volume GV of the liquid LQ in the container 12 has reached a desired value, in step S20, the second path 34 is operated by activating the solenoid valve 36. ) is opened. Because of this, unnecessary carbon dioxide gas (CG) existing inside the container 12 is discharged to the outside of the container 12 through the first passage 33 and the second passage 34 . For this reason, carbon dioxide gas (CG) at a flow rate larger than that of the mixed gas by the first release can be released to the outside of the container 12 (second release). In this way, the pressure in the container 12 in which the injection of the carbon dioxide gas CG into the liquid LQ is completed can be adjusted (reduced) in a short time, and the injection of the carbon dioxide gas CG ends in step S30. Further, the second passage 34 can be used to suppress or prevent an excessive increase in pressure inside the container 12 during injection of the carbon dioxide gas CG into the liquid LQ.

Moreover, the cross-sectional area of the second passage 34 is configured to be smaller than that of the first passage 33 . For this reason, by the second release, it is possible to suppress or prevent a rapid increase in the flow rate of the carbon dioxide gas (CG) discharged to the outside of the container 12 . Accordingly, the pressure in the container 12 can be adjusted (reduced) in a short time without needlessly reducing the gas volume GV of the liquid LQ that has reached the desired gas volume GV.

As described above, the injection device 10 injects the carbon dioxide gas (CG) with the first release and the second release, thereby injecting the low pressure carbon dioxide gas (CG) to the high gas volume (GV) as a liquid ( LQ) can be injected in a short time. Specifically, operation of the injection device 10 for a total of 13 seconds, in which, for example, carbon dioxide (CG) at a pressure of 1.0 MPa or less is injected for 8 seconds accompanied by the first release, and the second release is performed for 5 seconds after the injection. As a result, the gas volume GV of the liquid LQ can be set to 4.0 GV or more. At this time, these time intervals may be appropriately adjusted according to the capacity of the container 12, the amount, type and temperature of the liquid LQ.

Further, according to the present embodiment, since the carbon dioxide gas CG can be injected along with the first release and the second release, the container 12 is partially filled with the liquid LQ, and the head space HS ) is formed, the carbon dioxide gas (CG) can be injected with a high gas volume (GV) by increasing the material amount of the carbon dioxide gas (CG) in the head space (HS). Thereby, it is possible to easily inject the low-pressure carbon dioxide gas (CG) to a high gas volume (GV) without pressurizing the container 12 to a high level in advance.

In addition, here, although injection of carbonic acid gas (CG) is completed by injection of carbonic acid gas (CG) accompanied by 1st release once, and the mode in which 2nd release is performed once was demonstrated, it is not limited to this. For example, as shown in FIG. 2, the carbon dioxide gas (CG) is injected to a predetermined gas volume (GV) accompanied by the first release, and the pressure inside the head space (HS) is once adjusted by the second release. Next, the injection of carbon dioxide gas (CG) accompanied by the first release and the second release may be repeated once or a plurality of times.

As described above, by the carbon dioxide injection device 10 and injection method according to the present embodiment, the low-pressure carbon dioxide gas CG is injected into the liquid LQ filled in the container 12 with a high gas volume GV. can be injected up to

(First modified example)

Hereinafter, a modified example of the carbon dioxide injection device 40 (hereinafter, referred to as the injection device 40) according to the present embodiment will be described. The same code|symbol is attached|subjected to the same or corresponding element as 1st Embodiment, and redundant description is abbreviate|omitted.

3 shows an injection device 40 according to a variant. The release path portion 45 of the release mechanism 42 installed in the injection device 40 has separate first and second paths 43 and 44 formed independently.

By providing the separate first passage 43 and the second passage 44, it is possible to smoothly inject the carbon dioxide gas (CG) accompanying the first release. Accordingly, the low-pressure carbon dioxide gas CG can be injected into the liquid LQ up to the high gas volume GV in a short time.

(Second modified example)

In the injection device 40 according to the second modified example, a pressure sensor (not shown) is installed inside the release path portion 45 . The controller 38 is configured to monitor the pressure inside the release passage 45 detected by the pressure sensor, and operate the solenoid valve 36 to open it when the pressure exceeds a predetermined pressure.

The control unit 38 can determine the timing for switching from the first release to the second release based on the pressure values inside the release path portion 45 and inside the head space HS connected thereto, which are detected by the pressure sensor. Specifically, by detecting an increase in the pressure of the carbon dioxide gas (CG) in the head space (HS) accompanying an increase in the gas volume (GV) of the liquid (LQ), the gas volume (GV) of the liquid (LQ) is grasped, The timing of switching from 1 release to 2 release can be determined. In this way, it is possible to efficiently inject the carbon dioxide gas (CG) accompanied by the first release and the second release. In addition, it is possible to accurately determine an excessive increase in pressure inside the container 12 in the middle of injecting the carbon dioxide gas CG into the liquid LQ, and to switch from the first release to the second release in order to reduce the pressure. can

(3rd modified example)

According to the injection device 40 according to the third modified example, the opening/closing portion 37 or the entire release path portion 45 including the opening/closing portion 37 is formed in a hollow tube shape by an elastically deformable material such as rubber, for example. made of rubber tubes, etc. Further, a pressing mechanism (not shown) configured to press the opening and closing portion 37 from the outside is provided in the opening/closing portion 37 of the second passage 44 . The pressing mechanism is configured to be operated by the controller 38 . The pressing mechanism can close the second passage 44 by pressing the opening/closing portion 37 from the outside, and open the second passage 44 when not pressing.

The release path part 45 has a second path 44 configured to be opened and closed by a pressing mechanism, so that the head of the container 12 containing the liquid LQ reaching the desired gas volume GV The unnecessary carbon dioxide gas CG existing in the space HS can be released outside the container 12 at a flow rate higher than that of the mixed gas by the first release. Thereby, the pressure in the container 12 in which injection of the carbon dioxide gas CG into the liquid LQ is completed can be adjusted (reduced) in a short time. In addition, since the path portion 45 is a simple configuration of only a rubber tube or a pressing mechanism, the injection device 40 can be configured simply, and manufacturing cost and man-hours associated with manufacturing can be reduced.

(Second Embodiment)

Hereinafter, a carbon dioxide injection device 50 (hereinafter referred to as injection device 50) according to the second embodiment will be described. The same code|symbol is attached|subjected to the same or corresponding element as 1st Embodiment, and redundant description is abbreviate|omitted.

4 shows an injection device 50 according to a second embodiment. The release mechanism 52 of the injection device 50 according to the present embodiment has one end connected to the headspace HS of the container 12 and a path for releasing the gas in the headspace HS from the other end. and a release path portion 54 having Accordingly, the gas in the head space HS can always be opened to the outside of the container 12 .

The release passage 54 has an extension 56 configured to expand the cross-sectional area of the passage. In addition, an expansion mechanism 57 for expanding the extension portion 56 is provided in the release path portion 54, so that the cross-sectional area of the path can be expanded. Specifically, the expansion mechanism 57 opens the expansion part 56 of the release path part 54 configured to be elastically deformable or the attached solenoid valve in a state where the expansion part 56 is open to a certain extent, for example, to a certain extent. It is the above-mentioned pressing mechanism etc. attached in the state (both not shown). Further, the expansion mechanism 57 is not limited to these, and may be another mechanism for expanding the path of the release path portion 54 opened to a certain extent.

When the injection of carbon dioxide gas (CG) into the container 12 is started by the user's operation of the operation panel or the like, the control unit 38 stops the operation of the expansion mechanism 57 so that the expansion unit 56 remains constant. Leave it as open as possible. For this reason, immediately after injection of the carbon dioxide gas (CG) into the container 12, the mixed gas of the air and carbon dioxide gas (CG) existing inside the container 12 passes through the release path portion 54 opened to a certain degree. It is released (to be released) to the outside of the container 12 (first release). For this reason, the carbon dioxide gas (CG) injected into the container 12 from the gas cartridge 14 is suppressed or prevented from excessively flowing (exiting) from the release path portion 54, then inside the container 12 Carbon dioxide gas (CG) may be injected into the liquid (LQ) of In addition, low-pressure carbonic acid of, for example, 1.0 MPa or less is applied to the container 12 without previously increasing the pressure in the container 12 to a high level or increasing the pressure of the carbon dioxide gas (CG) injected into the container 12 to a high pressure. The gas (CG) can be injected into the liquid (LQ) up to a high gas volume (GV) of 4.0 GV or more.

When the control unit 38 determines that the gas volume GV of the liquid LQ in the container 12 has reached a desired value, the expansion unit 56 is expanded by operating the expansion mechanism 57 . For this reason, unnecessary carbon dioxide (CG) existing inside the container 12 is discharged to the outside of the container 12 through the expanded release path portion 54 (second release). For this reason, carbon dioxide gas (CG) at a flow rate larger than that of the mixed gas by the first release can be released outside the container 12 . Thereby, the pressure in the container 12 in which injection of the carbon dioxide gas CG into the liquid LQ is completed can be adjusted (reduced) in a short time.

As described above, by the carbon dioxide injection device 50 and the injection method according to the present embodiment, the low-pressure carbon dioxide gas CG is injected into the liquid LQ filled in the container 12 with a high gas volume GV. can be injected up to

Although embodiments of the carbon dioxide injection devices 10, 40, and 50 and the injection method have been described, the present invention is not limited to the above embodiments. Various modifications of the above-described embodiments are included in the embodiments of the present invention within the scope conceived by those skilled in the art.

In addition, although the carbonic acid gas injection device 10 has been described here as a device for injecting carbonic acid gas (CG) into the container 12 filled with the liquid LQ as a beverage, it is not limited to this, and the carbonic acid gas injection device, For example, it may be used as an apparatus for injecting carbon dioxide gas into a liquid for use or beauty essence filled in a container to produce a liquid for beauty or essence containing carbon dioxide.

DESCRIPTION OF SYMBOLS 10: carbon dioxide injection device, 12: container, 12A: opening, 14: gas cartridge (gas supply source), 16: gas discharge part, 18: gas pipe (gas supply path), 20: regulator (adjustment mechanism), 22: container 28: gas inlet, 30: release mechanism, 32: release path, 33: first path, 34: second path, 36: solenoid valve, 37: opening/closing unit, 38: control unit, 40: carbon dioxide injection device , 42: liberation mechanism, 43: first path, 44: second path, 45: liberation path part, 50: carbon dioxide injection device, 52: liberation mechanism, 54: liberation path part, 56: extension part, CG: carbonic acid gas, LQ: liquid.

Claims (20)

A gas supply source filled with carbon dioxide gas;
a gas supply path having one end connected to the gas supply source;
an adjustment mechanism installed between the gas supply source and the gas supply passage to adjust the carbon dioxide gas discharged from the gas supply source to a predetermined pressure or less;
a container connection portion to which the other end of the gas supply passage is connected and to which the container is connected in order to inject carbon dioxide gas from the gas supply source into the container into which the liquid has been injected;
a gas injection unit for injecting carbon dioxide gas into the liquid inside the container from the other end of the gas supply passage;
A release path portion having one end connected to the inside of the container and having an opening and closing portion configured to open and close so as to form a path for releasing gas inside the container when opened, at the other end side, and opening and closing the opening and closing portion Liberation mechanism with control unit for controlling
A carbon dioxide gas injection device having a. The carbonic acid gas injection device according to claim 1, wherein the release path portion has a first path for always releasing gas inside the container and a second path having the opening/closing part. The carbonic acid gas injection device according to claim 2, wherein the cross-sectional area of the first passage is larger than that of the second passage. The carbonic acid gas injection device according to any one of claims 1 to 3, wherein the control unit opens and closes the opening and closing unit at predetermined time intervals. The carbonic acid gas injection device according to any one of claims 1 to 4, wherein the control unit opens the opening/closing unit when the inside of the release path unit exceeds a predetermined pressure. The carbonic acid gas injection device according to any one of claims 1 to 5, wherein the release mechanism has an electromagnetic valve for opening and closing the opening and closing portion. The carbonic acid gas injection device according to any one of claims 1 to 6, wherein the opening and closing portion is configured to be elastically deformable. A gas supply source filled with carbon dioxide gas;
a gas supply path having one end connected to the gas supply source;
an adjustment mechanism installed between the gas supply source and the gas supply passage to adjust the carbon dioxide gas discharged from the gas supply source to a predetermined pressure or less;
a container connection portion to which the other end of the gas supply passage is connected and to which the container is connected in order to inject carbon dioxide gas from the gas supply source into the container into which the liquid has been injected;
a gas injection unit for injecting carbon dioxide gas into the liquid inside the container from the other end of the gas supply passage;
A release path portion having one end connected to the inside of the container, having a path for releasing gas inside the container from the other end, and having an expansion portion configured to expand a cross-sectional area of the path, and controlling the expansion of the expansion portion. Liberation Mechanism with Control
A carbon dioxide gas injection device having a. The carbonic acid gas injection device according to claim 8, wherein the control unit expands the expansion unit at predetermined time intervals. The carbonic acid gas injection device according to claim 8 or 9, wherein the control unit expands the expansion unit when the inside of the release path unit exceeds a predetermined pressure. The carbonic acid gas injection device according to any one of claims 8 to 10, wherein the release mechanism has an electromagnetic valve for expanding the expansion portion. The carbonic acid gas injection device according to any one of claims 8 to 11, wherein the expansion part is configured to be elastically deformable. 13. The method according to any one of claims 1 to 12, wherein the release of the gas inside the container includes first release in which a gas with a flow rate smaller than that of carbon dioxide gas injected into the liquid inside the container is released, and the first release A carbon dioxide gas injection device comprising a second release that releases a gas with a larger flow rate than the gas by. The carbonic acid gas injection device according to any one of claims 1 to 13, wherein the container when connected to the container joint is partially filled with a liquid. The carbonic acid gas injection device according to any one of claims 1 to 14, wherein the pressure of the carbonic acid gas flowing from the gas supply source to the gas supply passage is less than 1.0 MPa. The carbonic acid gas injection device according to any one of claims 1 to 15, wherein the gas volume of the carbonic acid gas injected into the container is approximately 4.0 GV or more. A gas supply source filled with carbon dioxide gas;
a gas supply path having one end connected to the gas supply source;
an adjustment mechanism installed between the gas supply source and the gas supply passage to adjust the carbon dioxide gas discharged from the gas supply source to a predetermined pressure or less;
a container connection portion to which the other end of the gas supply passage is connected and to which the container is connected in order to inject carbon dioxide gas from the gas supply source into the container into which the liquid has been injected;
a gas injection unit for injecting carbon dioxide gas into the liquid inside the container from the other end of the gas supply passage;
A release path portion having one end connected to the inside of the container and having an opening and closing portion configured to open and close so as to form a path for releasing gas inside the container when opened, at the other end side, and opening and closing the opening and closing portion Liberation mechanism with control unit for controlling
In the carbon dioxide injection device having a,
A first release step of releasing a gas with a flow rate smaller than that of carbon dioxide gas injected into the liquid inside the container;
A second release step of releasing a larger amount of gas than the first release step
Having a carbon dioxide gas injection method. A gas supply source filled with carbon dioxide gas;
a gas supply path having one end connected to the gas supply source;
an adjustment mechanism installed between the gas supply source and the gas supply passage to adjust the carbon dioxide gas discharged from the gas supply source to a predetermined pressure or less;
a container connection portion to which the other end of the gas supply passage is connected and to which the container is connected in order to inject carbon dioxide gas from the gas supply source into the container into which the liquid has been injected;
a gas injection unit for injecting carbon dioxide gas into the liquid inside the container from the other end of the gas supply passage;
A release path portion having one end connected to the inside of the container, having a path for releasing gas inside the container from the other end, and having an expansion portion configured to expand a cross-sectional area of the path, and controlling the expansion of the expansion portion. Liberation Mechanism with Control
In the carbon dioxide gas injection device having a,
A first release step of releasing a gas with a flow rate smaller than that of carbon dioxide gas injected into the liquid inside the container;
A second release step of releasing a larger amount of gas than the first release step
Having a carbon dioxide gas injection method. The carbonic acid gas injection method according to claim 17 or 18, wherein the pressure of the carbonic acid gas flowing from the gas supply source to the gas supply passage is less than 1.0 MPa. The carbonic acid gas injection method according to any one of claims 17 to 19, wherein the gas volume of the carbonic acid gas injected into the container after the second releasing step is approximately 4.0 GV or more.

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