JP6097986B1 - Carbonated water production equipment - Google Patents

Abstract

The present invention provides a carbonated water production method having a high solubility of carbon dioxide gas and a carbonated water production apparatus capable of realizing the method with a simple and low-cost configuration. First, a method for producing carbonated water is a method of producing carbonated water by storing water up to a predetermined water level in a pressure-resistant vessel and making the inside of the vessel airtight and then injecting carbon dioxide into the stored water. During the carbon dioxide injection process, the pressure in the upper space formed on the surface of the stored water is varied a predetermined number of times. The pressure change in the upper space is caused by opening the atmosphere with a relief valve. The carbonated water production apparatus 1 includes an airtight pressure-resistant container 2 provided with a water injection pipe 31 and a supply pipe 41, a water level sensor 6 that is disposed in the pressure-resistant container and detects the water level of the stored water, and carbonated in the stored water. It comprises a nozzle 5 for injecting gas, a relief valve 72 communicating with the upper space of the pressure vessel, and a plurality of guide plates 22 formed continuously in the vertical direction along the inner peripheral surface of the pressure vessel. [Selection] Figure 1

Description

  The present invention relates to a carbonated water production apparatus for dissolving carbon dioxide gas in water at a high concentration.

Recently, it has been found that carbonated water in which carbon dioxide gas is dissolved in water at a high concentration has various effects on the human body. For example, in the case of drinks, there is an effect of recovery from fatigue, improvement in diabetes, gout, anemia, etc. In the case of face washing and bathing, penetration through the skin promotes blood circulation, discharges waste products, eliminates swelling, etc. Is mentioned.
Moreover, carbonated water is widely used not only for drinking as it is, but also for breaking various raw sauces (for example, fruit juice, alcohol, vinegar, etc.).

  Against this background, there is an increasing demand for simply using carbonated water not only for business use but also at home, and various forms of carbonated water production apparatuses that can be used at home have been developed.

  For example, in Non-Patent Document 1, a nozzle that ejects carbon dioxide gas is inserted into a bottle that stores water, carbon dioxide gas is ejected from the tip of the nozzle, and then the bottle is appropriately shaken in the vertical direction after a predetermined time has elapsed. According to (mixing), a household carbonated water production apparatus for obtaining carbonated water by mixing water and carbon dioxide gas, the product name “Soda Machine” was sold.

  Patent Document 1 discloses that a pressure-resistant container is filled with carbon dioxide gas to form a carbon dioxide atmosphere, and drinking water is sprayed while swirling in the atmosphere, and carbon dioxide and drinking water are mixed to produce carbonated water. An apparatus for producing carbonated water that generates water has been disclosed. This apparatus is called a spray nozzle system in the carbonated water generation system, and has a surface in which the solubility of carbon dioxide gas is better than that of the jet nozzle system that ejects carbon dioxide gas into the drinking water of the “soda machine”.

  In addition, in Patent Document 2, when drinking water passes through the inside of a predetermined case, carbon dioxide gas in a separately installed cylinder is supplied to the case through the porous body, thereby dissolving the carbonated water in the water. A drinking water server that generates carbonated water and then supplies the carbonated water to the outside has been disclosed.

JP 2014-23979 A JP 2014-144788 A

  URL: http://idea-onlineshop.jp/?pg=product_detail&am=06910758

  However, the “soda machine” shown in Non-Patent Document 1 is complicated because the whole process is manual, and so-called strong carbonated water (carbonic acid carbonate) depends on factors such as the waiting time after gas ejection and how to shake the bottle. Not only does the gas solubility not lower than 2700 ppm), but there is a case where variations in the strength of carbonic acid occur even in the range of weak carbonated water below that.

  The remaining carbonated water is sealed with a special bottle (about 1000 ml) and a special cap and stored in a refrigerator. However, for general household use, the carbonated water is weak and easy to remove carbonic acid. It is not easy to use in single or small-sized households.

  On the other hand, the carbonated water production apparatus of Patent Document 1 is designed to produce strong carbonated water by jetting water as a swirling flow from a nozzle into a carbon dioxide gas atmosphere. An expensive water supply pump was required. For this reason, the equipment is not only increased in size but also increased in cost, and in view of this point, it is not suitable for home use regardless of business use.

  Moreover, since the drinking water server of patent document 2 is a component point which mainly focused on dissolving hydrogen gas in domestic drinking water, it does not include a mixing / stirring means necessary for dissolving carbon dioxide gas. There wasn't. For this reason, when hydrogen gas is changed to carbon dioxide, the solubility of carbon dioxide in water is poor, and it is particularly unsuitable for the production of strong carbonated water.

Accordingly, the present invention was made in view of the above problems, the solubility of carbon dioxide rather high, to provide a carbonated water manufacturing apparatus capable of realizing a simple and low-cost configuration.

In order to solve the above-described problems, the carbonated water production apparatus according to the present invention is configured as follows.

That is, in the process of injecting carbon dioxide gas into the water-tight stored water after the water is stored in the pressure-resistant container to a predetermined water level, the pressure of the upper space formed on the water surface of the stored water is determined a predetermined number of times. This is a carbonated water production apparatus that produces carbonated water by varying it only by opening to the atmosphere, and is equipped with an airtight pressure-resistant container equipped with water injection means and supply means, and disposed in the pressure-resistant container to detect the level of stored water A water level sensor, nozzle means for injecting carbon dioxide gas into the stored water, a relief valve communicating with the upper space of the pressure vessel, and a 1 or formed continuously in the vertical direction along the inner peripheral surface of the pressure vessel It is characterized by comprising a plurality of guide plates.

The pressure vessel supplying means may be configured by connecting a means such as an air pump for forcibly discharging the inside carbonated water after the inside of the pressure vessel is opened to the atmosphere and forcibly discharging the carbonated water.

The guide plate of the pressure vessel acts to forcibly induce carbon dioxide bubbles generated in the stored water in the vertical direction and thereby increase the vertical water flow velocity.

Further, the carbon dioxide diffusion means is disposed on the bottom surface in the pressure vessel. The diffusing means acts so that the bubbles of the carbon dioxide gas injected from the nozzle means are diffused to the whole without being biased to a part of the bottom of the pressure vessel.

The diffusing means is preferably formed in a lattice having a predetermined mesh, but the mesh of the lattice may be changed to a circle, a triangle, a hexagon, or the like. Furthermore, the diffusing means may be changed to a radial shape, an umbrella shape, a concentric multiple circle shape, or the like as long as it exhibits a diffusing function.

In addition, the pressure vessel is characterized by comprising a cooling means for cooling the outer surface. As the cooling means, for example, a cooling pipe through which a refrigerant circulates may be configured around the pressure vessel. However, this cooling means can be omitted if it is installed on the water source side of the pressure vessel.

Next, the carbonated water production apparatus having the above configuration produces carbonated water by acting as follows.

First, as described above, after the water is stored in the pressure resistant container up to a predetermined water level and the inside of the container is airtight, the pressure of the upper space formed on the surface of the stored water in the carbon dioxide injection process by the nozzle means Is varied a predetermined number of times by opening the atmosphere with a relief valve.

The relief pressure for opening to the atmosphere is such that the pressure in the upper space in the pressure resistant vessel is in the range of 0.6 Mpa to 0.99 Mpa.

The carbon dioxide gas injection process is continuous injection at a constant pressure. Here, when the carbon dioxide gas injection pressure is set to a constant pressure and the carbon dioxide solubility is to be changed, the injection time is appropriately changed and adjusted. Therefore, the pressure in the upper space (hereinafter referred to as “space pressure”) in the pressure-resistant container opened to the atmosphere is appropriately selected depending on the relationship between the injection pressure of carbon dioxide gas and the injection time.

When operated as described above, the space pressure in the pressure-resistant vessel rapidly decreases even if it does not reach atmospheric pressure due to release to the atmosphere, while it rises again with continued carbon dioxide gas injection.

That is, the space pressure in the pressure vessel repeats a constant increase and a rapid decrease in the carbon dioxide injection process. As a result, the stored water in which a certain amount of carbon dioxide gas is dissolved is stimulated, and at one end, a part of the dissolved carbon dioxide gas becomes bubbles, which causes a sudden upward flow in the entire stored water.

Then, this rapid rising flow of the stored water acts to mix and agitate the upper space in the pressure vessel and the stored water, and further promote the dissolution of the carbon dioxide gas in the upper space into the stored water. In other words, an action equivalent to that of mixing (vertically swinging) the pressure vessel in the vertical direction is performed.

The carbonated water production apparatus having the above configuration generates a sudden vertical upward flow due to bubbles in the stored water due to a change in the space pressure in the pressure vessel during the carbon dioxide injection process, and this causes the storage water and the upper space of the pressure vessel to Induce carbon dioxide mixing and agitation. As a result, dissolution of the carbon dioxide gas in the upper space into the stored water can be promoted, and so-called strong carbonated water can be obtained.

In addition , since it is not necessary to physically shake the pressure vessel in the vertical direction or to provide stirring means that requires a separate drive source inside the pressure vessel, the structure of the manufacturing apparatus can be simplified.

Further , the carbonated water production apparatus has a pressure vessel, a water level sensor for confirming the storage amount, a nozzle means for injecting carbon dioxide gas, a relief valve for opening to the atmosphere, and elements of a guide plate formed along the inner peripheral surface of the pressure vessel. If it is limited, it can be constructed.

  And the component to add is also a simple structure which arrange | positions the lattice body etc. which diffuse the injected carbon dioxide gas in a container.

  As a result, not only the production cost of the carbonated water production apparatus but also the maintenance cost can be greatly suppressed, and the carbonated water production apparatus can be provided at low cost for ordinary households. In addition, it can also be used as an assembly unit for generating carbonated water of a current carbonated beverage supply apparatus (so-called cup-providing vending machine), and its application is wide.

It is a perspective view which cuts off and shows the carbonated water manufacturing apparatus based on this invention partially. It is A arrow directional view of FIG. It is BB sectional drawing of FIG. It is a circuit diagram of the carbonated water manufacturing apparatus concerning this invention. It is the top view (A) and (B) and perspective view (C) which show the modification of the grid | lattice body of the carbonated water manufacturing apparatus which concerns on this invention. It is a flowchart which shows the carbonated water manufacturing process by the carbonated water manufacturing apparatus which concerns on this invention. It is explanatory drawing which shows the effect | action of the carbonated water manufacturing apparatus which concerns on this invention.

Then, carbonated water manufacturing apparatus according to the present invention (hereinafter, referred to as "device".) An example of a specific embodiment of, it will be described with reference to the drawings in detail.

  In the following description, for convenience, the upper part of the drawing is referred to as “upper part” and the lower part is referred to as “lower part”.

  FIG. 1 is a partially cutaway perspective view showing the configuration of the apparatus 1. The apparatus 1 has a pressure vessel 2 as a main component, and a water injection pipe 31 and an open pipe 7 are connected to the upper side of the pressure vessel 2 and a supply pipe 41 is connected to the lower side, and a nozzle 5 and a water level sensor are provided inside. 6 is arranged.

  First, the pressure vessel 2 is hermetically formed with a cylindrical casing 21 having a predetermined pressure resistance and closed at the top and bottom, so that a predetermined amount of water can be stored therein. The pressure vessel 2 of the present embodiment has a specification of a pressure resistance of 2 Mpa and a capacity of 1000 ml. In general, as a pressure-resistant container for distribution at home or small-scale business, the pressure resistance is generally up to about 7000 ml with the same pressure resistance. The pressure vessel 2 may be made of metal or resin.

  In addition, four rectangular plate-like guide plates 22 are disposed on the inner peripheral surface of the pressure vessel 2. The guide plate 22 protrudes in the axial center direction and is disposed along the vertical direction of the pressure vessel 2. The width of the guide plate 22 is about half of the radius inside the pressure vessel, and the length is set so as to leave a gap of about 10 to 20% of the total length of the pressure vessel above and below the pressure vessel. In particular, the lower end side is adjusted to a length that avoids interference with the lattice body 23 described later.

  The guide plate 22 is arranged at four locations with respect to the inner peripheral surface of the pressure vessel, and is arranged at an angular interval of 90 degrees about the axis center. Moreover, it is a position which does not overlap with the water injection port 3 and the supply port 4 which are mentioned later, and is a position which does not interfere with any of the nozzle 5 and the water level sensor 6. In addition, since the structure itself in a pressure vessel changes according to the number of arrangement | positioning, the number of the guide plates 22 may be changed suitably according to the capacity | capacitance of the pressure vessel 2, the amount of stored water, etc., but at least 1 piece is arrange | positioned. . Moreover, since the guide plate 22 functions also as a rib, it contributes to the rigidity improvement of the pressure vessel 2.

  A lattice body 23 is disposed at the bottom of the pressure vessel. The lattice body 23 has a mesh of a predetermined size and is arranged slightly floating from the bottom surface of the pressure vessel 2. Moreover, it is made into the shape which avoided the part of the supply port 4 connected with the supply pipe | tube 41 formed in the center bottom part of the pressure | voltage resistant container 2. As shown in FIG.

  The mesh size of the lattice body 23 is preferably as small as possible, but in this embodiment, it is set to be slightly smaller than the outer diameter size of the nozzle 5 described later. Further, the height dimension is set to about 10 to 20% of the entire length of the pressure vessel 2 so as to avoid the interference with the guide plate 22.

  The lattice body 23 is disposed as a diffusing unit whose main purpose is to diffuse carbon dioxide sprayed from a nozzle 5 to be described later. Therefore, it may be anything as long as it exhibits the function of diffusing carbon dioxide in the horizontal direction. For example, as shown in FIG. In addition, the shape may be appropriately changed to a linear radial shape, concentric multiple circles, a combination thereof, an umbrella shape with a raised central portion, or the like.

  Furthermore, the pressure vessel 2 is cooled by circulating a cooling pipe 24 around which refrigerant flows in the outer periphery of the pressure vessel 2. This is because carbon dioxide gas has a higher solubility in so-called cold water of 15 ° C. or lower, and the temperature is controlled by appropriately cooling the periphery of the pressure vessel. Thereby, while contributing to the production | generation of carbonated water of a fixed density | concentration, the maintenance of the quality of stored water and the carbonated water after production | generation is also attained.

  A water injection pipe 31 is connected to the upper portion of the pressure vessel 2 through a water injection port 3 communicating with the inside. The water injection pipe 31 has a function of injecting water from the water source Ws into the pressure vessel. A check valve 32, a water supply pump 33, and an air operating valve 34 that opens and closes the water injection pipe 31 are connected to the water injection pipe 31 in the order close to the pressure vessel side. In addition, it is desirable to maintain the water of the water source Ws at 15 ° C. or less by an external cooling means.

  On the other hand, a supply pipe 41 is connected to the lower part of the pressure vessel 2 through a supply port 4 communicating with the inside. The supply pipe 41 has a function of supplying carbonated water generated in the pressure vessel to the outside. An electric valve 42 is connected to the supply pipe 41, and this controls the supply of carbonated water to the outside after production.

  The nozzle 5 is a nozzle means for injecting carbon dioxide gas into the stored water. The nozzle 5 has a cylindrical shape and is arranged in a hanging shape inside the pressure-resistant vessel 2. The lower end side of the nozzle 5 extends to a position slightly above half of the length of the pressure vessel 2, and an injection port 51 having a size of 10% or less of the outer diameter is formed on the tip side. On the other hand, the upper end side passes through the housing 21 on the upper side of the pressure vessel 2 and is connected to the gas pipe 52. The gas pipe 52 is connected to a check valve 53, an electric valve 54, and a gas cylinder Gb storing carbon dioxide gas in the order close to the pressure vessel side. The outer diameter of the nozzle 5 and the injection port 51 are suitably reduced in diameter toward the tip as in the embodiment, but are not limited to this form and may be linear.

  The water level sensor 6 confirms the water level of the stored water in the pressure vessel. Based on the detection information from the water level sensor 6, the motor-operated valve 54 connected to the nozzle 5 is controlled to inject carbon dioxide from the nozzle 5. The water level sensor 6 of the present embodiment has a rod shape, and its upper end side is connected to a connector portion disposed on the upper portion of the pressure vessel 2, and its lower end side is parallel to the nozzle 5 inside the pressure vessel 2. It is arranged in a hanging shape. Further, the water level sensor 6 of the present embodiment has three sensors 1 from a lower limit sensor 61 extending near the lower part inside the pressure vessel, an appropriate amount sensor 62 extending near the middle, and an upper limit sensor 63 stopping near the upper part inside the pressure vessel 1 It consists of a set. Each sensor 61, 62, 63 obtains detection information by bringing the lower end portion into contact with the stored water.

  An open tube 7 communicating with the inside is disposed at the upper portion of the pressure vessel 2. An open motor-operated valve 71 is connected to the end portion side of the open pipe 7. With this configuration, when the air operation valve 34 of the water injection pipe 31, the electric valve 42 of the supply pipe 41, and the open electric valve 71 of the open pipe 7 are closed, an airtight state inside the pressure vessel can be secured.

  A relief valve 72 is disposed in the middle path of the open pipe 7. The relief valve 72 operates to open to the atmosphere to reduce the space pressure when the space pressure in the upper space excluding the stored water in the pressure-resistant vessel 2 exceeds a predetermined value. The relief valve 72 is provided with a silencer 72a that reduces noise when the atmosphere is open. The silencer 72a is formed by forming a plurality of apertures on the head side of the cap-shaped resin main body and arranging cotton inside, thereby enabling noise reduction of 25 db or more. In addition, the relief valve 72 of a present Example can set relief pressure (atmospheric open pressure) to a maximum of 1 Mp.

The motor valve 73 and the air pump 74 are sequentially connected to the intermediate path between the relief valve 72 and the open motor valve 71 of the open pipe 7. The air pump 74 is used when almost all carbonated water is discharged from the pressure vessel. In addition, unlike the present embodiment, when the supply port 4 is changed to the side surface or the upper side of the pressure vessel 2 or when the end of the supply pipe 41 is located above the pressure vessel 2, the internal pressure is changed. This is to forcibly discharge carbonated water. In other words, the air pump 74 is an external supply means for carbonated water. On the other hand, when the ends of the supply port 4 and the supply pipe 41 are located at the lower part of the pressure vessel 2 as in the present embodiment, since the carbonated water is removed by gravity, the air pump 74 and the electric valve 73 can be omitted. .
A filter (not shown) conforming to the Food Sanitation Law is provided on the open end side of the open motor-operated valve 71 and the air pump 74 to prevent dust, dust, etc. from entering the pressure vessel from the outside. .
[Description of action ]

Next, the operation of the apparatus 1 having the above configuration will be described. This operation will be described with reference to the flowchart of FIG. 6 and the operation explanatory diagram of FIG.

First, it is confirmed whether the pressure vessel 2 is normal as an initial state. As an initial state, for example, there is no carbonated water or stored water remaining in the pressure-resistant container, and whether it is in an airtight state. Residual carbonated water or the like is confirmed by the detection information of each of the water level sensors 61, 62, and 63. If an abnormality is detected, the subsequent operation is forcibly terminated and separately restored. The airtight state is confirmed by checking that the air operating valve 34, the open motorized valve 71, and the motorized valves 42, 54, 73 are closed.
[Airtight release of pressure vessel]

When the normal initial state is confirmed, the open motor-operated valve 71 is opened, the pressure-resistant container is opened to the atmosphere, and the airtight state is released.
[Water injection]

Next, while starting the water supply pump 33 of the water injection pipe 31, the air operation valve 34 is opened, and a predetermined amount of water is injected into the pressure resistant container through the water injection port 3 (arrow a). After water injection for a set time, the air operation valve 34 is closed and the water pump 33 is stopped.
[Judgment of appropriateness of storage volume]

  Whether or not the amount stored in the pressure vessel after stopping the water injection is appropriate is confirmed by the detection information of the appropriate amount sensor 62 of the water level sensor 6.

At this time, if there is detection information in the upper limit sensor 63 of the water level sensor 6, an abnormality is notified, and the subsequent operation is stopped, and then the return is made separately. Therefore, at least the upper space that is not detected by the upper limit sensor 63 is secured in the upper part of the pressure vessel. In this embodiment, in the maximum capacity 1000 ml of the pressure vessel 2, about 700 to 750 ml is injected [airtightness of the pressure vessel]

After confirming whether the amount of stored water in the pressure vessel is appropriate, the open motor-operated valve 71 is closed to make the inside of the pressure vessel airtight.
[CO2 emission]

  Next, the motor-operated valve 54 connected to the nozzle 5 is opened, and the carbon dioxide gas G is injected into the stored water over a predetermined time (arrow b). The injection pressure is adjusted in advance. Since the pressure resistance value of the pressure resistant container 2 in this embodiment is 2 Mpa, it is set to 0.99 Mpa or less in consideration of related laws and regulations.

  Here, a part of the ejected carbon dioxide G dissolves in the stored water, but the rest falls as bubbles and collides with the lattice body 23. Even during the collision, the dissolution of the carbon dioxide G is promoted, while the remaining bubbles diffuse radially around the bottom of the pressure vessel (arrow c). In addition, a part of the stored water that collides with the lattice body 23 together with the bubbles is subdivided by the lattice body 23 and contributes to the promotion of dissolution of carbonated water.

  The bubbles of the carbon dioxide gas G after the diffusion start to rise from the entire bottom surface of the pressure vessel (arrow d), but the movement in the circumferential direction is restricted by the guide plate 22 and the speed in the upward direction increases. Even in this ascending process, the dissolution of the carbon dioxide gas G progresses, and some of the bubbles also collide with the wall surface of the guide plate 22, which also promotes the dissolution. In addition, said speed increase contributes also to shortening of carbonated water production | generation time.

  And the bubble which was not able to melt | dissolve in stored water bounces in the upper space in a pressure vessel. As a result, the carbon dioxide gas concentration in the upper space increases and the space pressure increases.

  As described above, the injection of carbon dioxide G continues for a predetermined time. If the space pressure on the upper side exceeds a predetermined value (0.65 Mpa in this embodiment) within this predetermined time, the relief valve 72 is actuated to release the atmosphere (arrow e). Due to this release to the atmosphere, the space pressure of the pressure-resistant vessel 2 decreases at a stretch. This sudden pressure drop stimulates a part of the carbon dioxide G dissolved in the supersaturation in the stored water to rapidly gasify, generating a large amount of bubbles and moving upward. A flow is formed (arrow f). In the above-described opening to the atmosphere, the space pressure is set not to drop to atmospheric pressure. At this time, the air release sound is lowered by the silencer 72 a of the relief valve 72.

  Since the upward flow is restricted by the guide plate 22 in the vertical direction, a strong vertical action, in other words, “vertical swing” is added to the pressure vessel 2. As a result, mixing and stirring of the carbon dioxide gas G in the upper space and the stored water carbonated by partial dissolution of the carbon dioxide gas G and the carbon dioxide gas in the upper space are promoted, and more carbon dioxide gas G is dissolved. On the other hand, since the carbon dioxide gas G is continuously ejected from the nozzle 5, the dissolving action of the carbon dioxide gas by the lattice body 23 and the guide plate 22 is also continued, and the space pressure rises again.

  Opening the atmosphere by the relief valve 72 adds the above-described mainly longitudinal mixing and stirring action to the pressure-resistant vessel 2, so that the carbon dioxide G is further dissolved in the stored water in combination with the continuous injection of the carbon dioxide G. It will be promoted. In other words, as the relief valve 72 is operated more frequently, the solubility of the carbon dioxide gas G increases and it becomes possible to obtain stronger carbonated water.

  The number of operations of the relief valve 72 is adjusted by setting the relief pressure of the relief valve 72, the capacity of the pressure-resistant container 2, the storage amount, the injection pressure of the carbon dioxide G, and the injection time. In the case of the present embodiment, when the carbon dioxide gas ejection time is set to 11 seconds and the relief pressure is set to 0.65 Mpa, it is confirmed that the relief valve 72 is operated three times.

After the predetermined time set by the injection of carbon dioxide G has elapsed, the motor-operated valve 54 connected to the nozzle 5 is closed.
[Stabilization of carbonated water]

Waiting for a predetermined time (0.5 to 3.0 seconds in this embodiment) until the injection of the carbon dioxide gas G is finished and the produced carbonated water is in a stable state (a state in which the generation of bubbles is settled).
[Airtight release of pressure vessel]

After the elapse of the waiting time, the open electric valve 71 is opened to open the inside of the pressure vessel 2 to the atmosphere, and the carbon dioxide gas G in the upper space is discharged to release the airtight state in the pressure vessel. In releasing the airtightness of the pressure vessel 2, the opening time of the open motor-operated valve 71 is adjusted, the space pressure of the pressure vessel 2 is maintained at a state higher than the atmospheric pressure, and the supply (discharge) of carbonated water is assisted. May be.
[External supply]

Next, the electric valve 42 of the supply pipe 41 is opened, and carbonated water is supplied to the outside through the supply port 4 (arrow g). When the end of the supply pipe 41 is above the pressure vessel 2 or when the supply port 41 is changed to the upper side of the pressure vessel 2, the open electric valve 71 is once closed and the air pump 74 is activated. The motorized valve 73 associated therewith is opened to forcibly discharge the carbonated water from the pressure vessel 2. Further, in the above-described airtight release, the internal pressure may be adjusted to be higher by adjusting the opening time of the open electric valve 71 so that the same function as the air pump 74 may be exhibited.
[Judgment of suitability of residual amount]

After supplying carbonated water to the outside, check whether the amount of carbonated water remaining in the pressure vessel is appropriate. This is because not all carbonated water may be supplied depending on the supply mode. The remaining carbonated water is confirmed by the detection information of each of the water level sensors 61, 62, 63, and when an abnormality is detected, the subsequent operation is forcibly terminated and separately restored.
[Airtightness of pressure vessel]

When the supply of carbonated water to the outside is completed, the motor-operated valve 42 of the supply pipe 41 and then the open motor-operated valve 71 are closed to make the inside of the pressure vessel airtight and the production of carbonated water is terminated. In addition, since this state is an initial state waiting for the judgment of normal suitability, the next carbonated water production can be started.
[Verification data]

［他の実施例］ Carbonated water having the following carbonic acid solubility was obtained by the configuration and action of the apparatus of the above-described Example. First, in the pressure vessel 2, a water injection amount of 700 to 750 ml, a carbon dioxide injection pressure of 0.90 Mpa, an injection time of 11 seconds, a relief pressure of the relief valve 72 (atmospheric pressure) 0.65 Mp, a relief valve 72. The carbonated water produced by the number of operations 3 had a carbon dioxide solubility of 3390 ppm.
In addition, the data on the number of actuations of the relief valve 72, the solubility of carbon dioxide gas, and the amount of carbon dioxide consumption measured when the water injection amount and the injection pressure are fixed and the carbon dioxide gas injection time is appropriately changed are shown in Table 1 as a reference. Show.

[Other embodiments]

The water level sensor 6 of the present embodiment is a mode of three sets of a lower limit sensor 61, an appropriate amount sensor 62, and an upper limit sensor 63 in order to detect the storage amount in the pressure resistant container, but is limited to such a mode. Instead, for example, the sensor may be changed to a sensor that measures the water surface height in real time with a laser or the like. In that case, the amount of water injected into the pressure vessel may be monitored, and the air operating valve 34 for the water source may be feedback controlled.
In addition, the guide plate 22 disposed in the pressure vessel may be formed into a corrugated plate or may have irregularities on the surface thereof because dissolution is promoted by increasing the area in contact with the carbon dioxide gas.

DESCRIPTION OF SYMBOLS 1 This apparatus 2 Pressure-resistant container 21 Case 22 Guide plate 23 Grid body 24 Cooling pipe 3 Water inlet 31 Water inlet pipe 32 Check valve 33 Water supply pump 34 Air operation valve 4 Supply port 41 Supply pipe 42 Electric valve 5 Nozzle 51 Injection port 52 Gas pipe 53 Check valve 54 Electric valve 6 Water level sensor 61 Lower limit sensor 62 Appropriate sensor 63 Upper limit sensor 7 Open pipe 71 Open electric valve 72 Relief valve 72a Silencer 73 Electric valve 74 Air pump G Carbon dioxide Gb Gas cylinder Ws Water source

Claims (5)

In the process of injecting carbon dioxide gas into the water storage in an airtight container after the water is stored in the pressure vessel to a predetermined water level, the pressure of the upper space formed on the surface of the stored water is reduced to the atmospheric air a predetermined number of times. A carbonated water production device that produces carbonated water by varying the opening,
An airtight pressure-resistant container equipped with water injection means and supply means;
A water level sensor arranged in the pressure vessel to detect the level of stored water;
Nozzle means for injecting carbon dioxide into the stored water;
A relief valve in communication with the upper space of the pressure vessel;
One or more guide plates formed continuously in the vertical direction along the inner peripheral surface of the pressure vessel;
An apparatus for producing carbonated water, comprising: The guide plate is
2. The carbonated water production apparatus according to claim 1, wherein the apparatus is a shape protruding from the inner peripheral surface of the pressure vessel toward the axial center. 3. The carbonated water producing apparatus according to claim 1, wherein a carbon dioxide gas diffusing means is disposed on the bottom surface of the pressure vessel. 4. The carbonated water production apparatus according to claim 3, wherein the carbon dioxide diffusion means is formed in a lattice having a predetermined mesh. 5. The carbonated water production apparatus according to claim 1, wherein the pressure vessel comprises a cooling means for cooling the outer surface.

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