JPH03131259A - Method and apparatus for making carbonated spring - Google Patents

Abstract

PURPOSE:To eliminate labor or the inconvenience of handling and to obtain a carbonated spring at any time, if necessary, by concentrating carbon dioxide in combustion gas to send the same into water. CONSTITUTION:Air 1 is sent in a duct 6 by a blower 3 and supports the combustion of city gas 2 due to a burner 5 to feed combustion exhaust gas 16 which is, in turn, cooled by a cooler 7 to be sent to the non-transmission part of a carbon dioxide separation membrane 9. The suction part of a vacuum pump 10 is connected to the transmission part of the separation membrane 9 and a part or the whole of the component of the combustion exhaust gas 16 transmits through the separation membrane 9 and the membrane transmitted gas 11 enhanced in the concn. of carbon dioxide is sent in the hot water 13 within a bathtub 12 by the vacuum pump 10 through a connection pipe 24 and becomes gas bubbles 25 to be dissolved in the hot water 13. By this method, labor, the inconvenience of handling or trouble is eliminated and a carbonated spring can be obtained at any time, if necessary.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a method for producing carbonated springs that makes it easy to obtain physiologically effective carbonated springs, and a G-coating device [Prior Art] For example, Nippon Iji Shin 9HNO, 3165 (2012) has shown that carbonated springs containing gas increase the blood flow in the human body during bathing, and have physiological effects (such as reducing fatigue and keeping warm). (Published December 22, 1981) Recognized by ``Artificial carbonated bath and microcirculation.''

[Problem to be solved by the invention]

Methods for obtaining carbonated springs (7) Methods for generating carbon dioxide gas through the reaction of carbonates and acids by adding a mixture of carbonates and acids, and methods for injecting carbon dioxide gas into hot water using cylinders or tanks containing carbon dioxide gas. According to the method using a mixture of carbonate and acid, it is necessary to purchase and prepare the same mixture, and it is also necessary to pour the mixture into the bathtub each time. However, if the carbon dioxide gas is directly supplied from a cylinder or the like, it can be supplied for a relatively long period of time by installing a cylinder or the like. Therefore, there are problems in that handling becomes cumbersome and it is not always easy to obtain cylinders and the like.

This invention was made in view of the above-mentioned circumstances, and its object is to eliminate the inconvenience and trouble in obtaining and handling, to make it possible to obtain carbonated spring whenever needed, and to maintain a physiological The aim is to make it possible to obtain effective carbonated springs.

[Means for Solving the Problems] In order to solve the above problems, the carbonated spring manufacturing method according to the invention according to claim 1 includes a process of obtaining combustion gas from a fuel containing hydrocarbons, and a process of obtaining combustion gas from a fuel containing hydrocarbons, and removing carbon dioxide from the combustion gas. It has a process of concentrating, and a process of sending the concentrated carbon dioxide into the liquid.

The carbonated spring production apparatus according to the invention according to claim 2 includes means for obtaining combustion gas from a fuel containing hydrocarbons, means for concentrating carbon dioxide in the combustion gas, and sending the concentrated carbon dioxide into a liquid. means.

The carbonated spring manufacturing apparatus according to the invention as set forth in claim 3 is the apparatus as set forth in claim 2, wherein the means for obtaining combustion gas from the fuel containing hydrocarbons includes means for concentrating oxygen in the air in a preceding stage thereof; Combustion gas is obtained from enriched oxygen and fuel with hydrocarbons.

The carbonated spring manufacturing apparatus according to the invention set forth in claim 4 is the apparatus set forth in claim 2 or 3, wherein the means for concentrating carbon dioxide in the combustion gas includes, in a preceding stage, a means for removing moisture contained in the combustion gas. We are prepared.

The carbonated spring production apparatus according to the invention set forth in claim 5 is the apparatus set forth in any one of claims 2 to 4, in which the means for feeding concentrated carbon dioxide gas into the liquid pressurizes the concentrated combustion gas. It includes means for dissolving in water.

[For production]

The method and device for producing carbonated springs according to the present invention burn fuel containing hydrocarbons to generate carbon dioxide gas, which is used as a source of carbon dioxide gas, based on the combustion gas generation combustion reaction shown by the following formula 0. It is.

CnHm+(n+Jin)○t+(4n+m) Nt-+
nC0t +'lHz O+ (4n0m)Nt...
. . . ■ Formula Here, n and m are natural numbers (however, for simplicity, the molar ratio of 00., N, in air is approximated as N, 102 = 4).

Surplus air during combustion (k02.4kN; is a positive real number)
Then, the formula becomes as follows:CnHm(n
+l+k)Ox + (4n0m+4k)Nt-nc
Oz +11Hx O1kOi + (4n+m+4k
) Nt ......0 type In the apparatus of the present invention, the means for obtaining combustion gas from a fuel containing hydrocarbons is provided with a means for concentrating oxygen in the air in the preceding stage, and When combustion gas is obtained from fuel containing oxygen and hydrocarbons, a large amount of oxygen due to enrichment is used for combustion of the fuel.

In the apparatus of the present invention, when the means for concentrating carbon dioxide in the combustion gas is provided with a means for removing moisture contained in the combustion gas before the means, the concentration of carbon dioxide is facilitated by the removal of moisture.

In the apparatus of the present invention, if the means for feeding concentrated carbon dioxide into the liquid includes means for pressurizing concentrated combustion gas and dissolving it in water, carbon dioxide can be effectively introduced into water using a small carbon dioxide source. Can be dissolved.

〔Example〕

Hereinafter, embodiments of the present invention will be explained in detail with reference to the accompanying drawings.

In these examples, city gas is used as the fuel containing hydrocarbons.

1. First Embodiment FIG. 1 schematically shows a system according to a first embodiment of the present invention. The outline of the system of this embodiment is as follows: the combustion part of the city gas 2 by the blower 3, the burner 5, etc., the combustion exhaust gas 16 by the cooler 7, the condensed water reservoir 14, etc.
It consists of a carbon dioxide separation membrane 9, a concentration part for carbon dioxide contained in the combustion exhaust gas using a vacuum pump 10, etc., and a bath 12.

The operation details of this embodiment will be disclosed in order below.

The blower 3 sends air 1 into the duct 6 and burner 5
This helps the combustion of the city gas 2 and contributes to the general distribution of the combustion exhaust gas 16.The combustion of the burner 5 is carried out in the duct 1- to prevent the generated combustion exhaust gas from being diluted unnecessarily.
The combustion exhaust gas 1G generated only inside the cooler 7
At that time, condensed water 8 is generated and stored in a condensed water reservoir 14. In addition, in order that the generated condensed water 8 can easily reach the condensed water reservoir 14, the lower part of the duct 1-6 from which a large amount of condensed water 8 drips is tapered and connected to the condensed water reservoir 14. There is. The cooled and dehumidified combustion exhaust gas 16 is sent to the non-permeate side of the carbon dioxide separation membrane 9 in order to concentrate the carbon dioxide contained therein.

The suction side of a vacuum pump 10 is connected to the permeation side of the carbon dioxide gas separation membrane 9, and some or all of the components of the combustion exhaust gas 16 permeate through the carbon dioxide separation membrane 9, resulting in a membrane-permeable gas 11 with a high carbon dioxide concentration. is sent into the hot water 13 in the bathtub 12 by the vacuum pump 10 via the connecting pipe 24, and air bubbles 25
becomes. The carbon dioxide gas contained in the bubbles 25 dissolves in the hot water 13, forming carbonated spring.

Incidentally, the city gas 2 combustion device shown in burner 5 is a convenient device that can be ignited and extinguished with a single button or switch, and is highly popular due to the high popularity of city gas. It becomes. In addition, as a fuel containing hydrocarbons, 1. Propane gas is also highly popular,
It can be pointed out that these fuel systems are highly utilized, as fuel systems adapted to these systems are widely used.

After the city gas 2 is combusted, the combustion exhaust gas 16 is cooled down. 7 Immediately after the combustion exhaust gas 16 is generated, the
The temperature is between 0°C and several 1000'C, and when a part of the combustion exhaust gas 16 is sent into the hot water 13 of the bathtub 12, the temperature is about several 10'C, taking safety into consideration. It is desirable that Therefore, it is desirable to cool the combustion exhaust gas 16 from inside or outside the duct 6 or from inside and outside the duct 6 using a cooler 7 that uses water cooling, air cooling, or a combination of water cooling and air cooling.

Next, the reason for concentrating the carbon dioxide gas present in the combustion gas 16 will be described. According to the literature ("Artificial carbonated bath and microcirculation"), if the carbon dioxide concentration in hot water is about 60 ppm or higher, an increase in blood/M, ffl in the human body during bathing is observed, and it is considered as a carbonated spring. It is generally recognized that it has physiological effects (such as reducing fatigue and keeping warm).

By the way, it is effective from the viewpoint of convenience to use widely used city gas or propane gas exhaust gas as the carbon dioxide gas source necessary for making carbonated springs, but as described below, the carbon dioxide in the combustion gas The problem is that the gas concentration is low.

The combustion of methane gas (CH,) and propane gas (CsHs), which are the main components of city gas, is expressed by the following formula (for simplicity, the ratio of oxygen to nitrogen in the air is assumed to be 1:4).
CHa” 20! + 8 N1-COs +
2 Hz O18 Ng...--1----0%
Formula% Part CO! +4 Ha O+ 20 Nx-・-・
-0 formula However, the above formula is a theoretical combustion formula, and normally, in order to achieve substantially complete combustion, the amount of air is increased by several tenths to several times the theoretical amount of air in the above formula. For example, if the increase is 50%, the above 0
The formula and 0 formula are as follows CH4+30m +
12Ng = COg +2Hx O+O! + 12N2-■2C
t Hs + 7.50g + 30N! →３
GO! +4H* O+2.501 +3ONg
------- Type 0 combustion exhaust gas is shown on the right side for both Formulas ■ and ■.
The proportion of carbon dioxide gas in the combustion exhaust gas is, in the case of type 0,
6.3%, 7.1 in dry gas excluding water vapor component
%, it is 7.6% in case of 0 type and 8.5% in dry gas.

Here, we will consider the amount of carbon dioxide dissolved when combustion exhaust gas having a carbon dioxide ratio of around 7% is sent into hot water. According to the Basic Chemical Handbook (revised 3rd edition; published by Maruzen on June 25, 1980), the concentration of carbon dioxide dissolved in water is at a water temperature of 40°C (normal bathing water temperature is around 40°C). It is about 11,000pp. Note that this value is a saturation equilibrium value when the carbon dioxide pressure in the gas phase is latm, and is a value that can only be reached after a considerable amount of contact time between carbon dioxide and hot water. When the gas exists as bubbles 25 in the hot water 13, the atmospheric pressure is approximately 1 atm, and if the internal carbon dioxide ratio is 7%, the carbon dioxide partial pressure is approximately 0.07 atm. Generally speaking, considering that the amount of gas dissolved in water is approximately proportional to the gas partial pressure in the gas phase, combustion exhaust gas containing 7% carbon dioxide and having a total pressure of approximately 1 atm is mixed with bubbles in hot water 13 at approximately 40°C. 25 and melting, the maximum is 1000 ppm xO,07=7
Only carbonated springs with a dissolved carbon dioxide concentration of about 0 ppm can be produced. Furthermore, as described above, this value of 70 ppm can only be reached after a considerable amount of contact time between carbon dioxide gas and hot water. From the above, it can be concluded that simply introducing gas with a carbon dioxide ratio of about 7% into the hot water 13 in the form of bubbles will result in a carbon dioxide concentration of 60 pp which has a physiological effect.
It must be said that even achieving m reliably is difficult.

The above-mentioned document (Nippon Iji Shinpo No. 3165 (Showa 59)
According to ``Artificial carbonated bath and microcirculation'' published on December 22, 2016), the effect of increasing blood flow during bathing is several times higher when the concentration of dissolved carbon dioxide is approximately 150 ppm than when it is approximately 60 ppm. It has been revealed that this increases by about 4 to 5 times. Therefore, it is considered difficult to reach a carbon dioxide concentration level that has a higher physiological effect by simply introducing combustion exhaust gas into the hot water 13 and melting the carbon dioxide gas.

As a source of carbon dioxide necessary for producing carbonated springs, the use of combustion exhaust gas from fuels containing hydrocarbons (such as city gas and propane gas) is likely to be used due to its high popularity. It is clear that there is a need to concentrate the carbon dioxide in the inherently dilute combustion exhaust gas so that the concentration of carbon dioxide dissolved therein reaches a level that has physiological effects.

Therefore, in this embodiment, a carbon dioxide gas separation membrane 9 is used to increase the concentration of carbon dioxide gas in the combustion exhaust gas. The device configuration and concentration mechanism are as follows.

The suction side of a vacuum pump 10 is connected to the permeation side of the carbon dioxide gas separation membrane 9, and the pressure is reduced, so that the carbon dioxide gas separation membrane 9
A pressure gradient exists from the non-permeable side of the gas to the permeable side between them, and part or all of the gas components permeate through the carbon dioxide separation membrane 9 using this pressure gradient as a driving force. The carbon dioxide gas separation membrane 9 is relatively easy for carbon dioxide to pass through, and therefore, the ratio of carbon dioxide in the gas component after permeation through the carbon dioxide gas separation membrane 9 is higher than that before permeation.

Note that as the carbon dioxide gas separation membrane 9, an ethylenediamine-containing polymer membrane, a polydimethylsiloxane membrane, a natural rubber membrane, or the like is used. In this example, a polydimethylsiloxane film is used. The membrane-permeable gas 11 containing a high concentration of carbon dioxide thus obtained is sent out from the vacuum pump 10, passes through the connecting pipe 24, and is sent to the hot water 13 in the bathtub 12, becoming bubbles 25 while permeating the membrane. Some or all of the carbon dioxide gas present in the gas 11 is the same as the hot water 1
3. It melts and creates carbonated springs.

-Second Embodiment- FIG. 2 schematically shows a system according to a second embodiment of the present invention. This embodiment differs from the first embodiment shown in FIG. 1 only in the concentrated portion of the combustion exhaust gas 16, and only this point will be described below.

The combustion exhaust gas 16 of the city gas 2 is cooled and dehumidified, and then passed through a carbon dioxide gas separation membrane 15 to concentrate and separate carbon dioxide.
It is sucked by the blower 3', passes through the connecting pipe 24, and is drawn into the bathtub 12.
The bubbles 25 are introduced into the hot water 13 inside. Here, to describe the concentration mechanism of the carbon dioxide concentration section having the non-carbon dioxide gas separation membrane 15, the non-carbon dioxide gas separation membrane 15 has a function that makes it relatively difficult for carbon dioxide to permeate. The combustion gas is transferred to the vacuum pump 10 via the separation membrane 15.
When the combustion gas is sucked in, relatively many gases other than carbon dioxide pass through the non-carbon dioxide gas separation membrane 15, and as a result, the remaining combustion gas that is not sucked inevitably has a lower carbon dioxide concentration. It gets expensive.

-Third Embodiment- FIG. 3 schematically shows a system according to a third embodiment of the present invention. This embodiment differs from the first embodiment shown in FIG. 1 in the type of pumps connected to the gas permeation side and non-permeation side of the carbon dioxide separation membrane 9. Only that point will be described below.

In the carbon dioxide concentration section, a pressure difference is generated as a driving force necessary for the combustion exhaust gas 16 to permeate through the carbon dioxide separation membrane 9 by pressurizing the non-permeation side. That is, the combustion exhaust gas 16 is pressurized by the pressurizer 17 and passes through the carbon dioxide separation membrane 9 . At that time, the carbon dioxide gas separation membrane 9
It is relatively easy for carbon dioxide to permeate through the membrane, and therefore, the membrane-permeable gas 11 after passing through the carbon dioxide separation membrane 9 has a higher concentration of carbon dioxide than the combustion exhaust gas 16.

The membrane-permeating gas is sent into the hot water 13 in the bathtub 12 by the blower 3' through the connecting pipe 24.Fourth Embodiment - FIG. 4 schematically shows the system of the fourth embodiment of the present invention. be. This embodiment is different from the second embodiment shown in FIG. 2 in the types of pumps connected to the gas permeation side and the non-permeation side of the carbon dioxide separation membrane 9, and only this point will be described below.

In the carbon dioxide concentration section, the combustion exhaust gas 16 is generated by pressurizing the non-permeation side to create a pressure difference (1f, an advance force) necessary for the combustion exhaust gas 16 to permeate through the non-carbon dioxide gas separation membrane 15. , pressurized by pressurizer 17,
It attempts to permeate the non-carbon dioxide gas separation membrane 15. At this time, since carbon dioxide gas is relatively difficult to permeate through the non-carbon dioxide gas separation membrane 15, the carbon dioxide concentration in the membrane permeated gas 4 that has not passed through the non-carbon dioxide gas separation membrane 15 is lower than that of the original combustion exhaust gas 16. It is higher than the carbon dioxide concentration.

The membrane permeate gas 4 is fed under pressure into the hot water 13 in the bathtub 12 through the connecting pipe 24. Fifth Embodiment FIG. 5 schematically shows a system according to a fifth embodiment of the present invention. It is something. This embodiment differs from the first embodiment shown in FIG. 1 only in the carbon dioxide concentration portion of the combustion exhaust gas 16, and only this point will be described below.

The pressure R17 whose suction side is connected to the duct 6 and the adsorption tower 21 are connected across the valve A18, and the suction side of the vacuum pump 1o is connected to the connection between the adsorption tower 21 and the valve A18 through the valve B19. has been done. vacuum pump 1o
The discharge side is connected to the hot water 13 in the bathtub 12.

Here, in order to explain the carbon dioxide gas concentration method in more detail,
FIG. 6 shows a state in which the adsorption tower 21 is partially cut out and viewed from an oblique direction. With valve C20 and valve A18 open and valve B19 closed, pressurization ta17 is applied.
The dehumidified and cooled combustion exhaust gas 16 is sent from the bottom of the adsorption tower 21, and the honeycomb-shaped adsorbent 23 thrown into the adsorption tower 21 adsorbs carbon dioxide gas.
20 and valve A18 are in a closed state, and valve B19 is in an open state, the vacuum pump 1o is operated to release the carbon dioxide gas adsorbed by the honeycomb-shaped adsorbent 23,
The combustion exhaust gas with increased carbon dioxide concentration is sent to hot water 13 via valve B19.

In this embodiment, activated carbon is used as the carbon dioxide adsorbent. This is relatively easy to adsorb carbon dioxide gas.

-Sixth Embodiment- FIG. 7 schematically shows a system according to a sixth embodiment of the present invention. This embodiment is an example in which the routes from the carbon dioxide gas concentrating section and the carbon dioxide scum concentrating section are different from the fifth embodiment shown in FIG. 5, and only this point will be described below.

A pressurizer 17 is connected to the extension of the duct 6, and the pressurizer 17
and an adsorption tower 21 are connected to each other with a valve A18 in between, and the suction side of the vacuum pump 10 is connected to a connecting pipe between the adsorption tower 21 and the valve A18 with a valve B19 in between. The discharge side of the true pump 10 is open to the atmosphere. The adsorbent 23 in the adsorption piece 21 is filled with something that selectively adsorbs cancer other than carbon dioxide gas. A connecting pipe 24 exiting from the top of the dry absorption tower 21 is connected to the bath [12] via a valve C2 (). Note that the pressure machine 17 may be a blower.

Concentration of carbon dioxide gas in combustion exhaust gas is carried out as follows.

Valve A18 and valve C20 are open, Norzo B1
9 is the dehumidified and cooled combustion exhaust gas 1 in the closed state.
6 is sent to the adsorption tower 12 in a pressurized state by the pressurizer F, and since carbon dioxide gas is relatively difficult to be adsorbed in the adsorption tower 2I, it is passed from the adsorption tower 21 via the connecting pipe 24 and valve C20 to the bathtub. The non-adsorbed gas 22 sent to the hot water 13 in the combustion chamber 12 contains a higher concentration of carbon dioxide than the combustion exhaust gas 16.

The gas adsorbed by the adsorbent 23 of the adsorption tower 21 has a low proportion of carbon dioxide gas, and is adsorbed by operating the vacuum pump 10 with valves A18 and C20 closed and valve B19 open. The gas adsorbed on the agent 23 is deposited to regenerate the adsorbent 23.

Hereinafter, FIGS. 8 to 14 show that a means for obtaining combustion gas from a fuel containing hydrocarbons is provided with a means for concentrating oxygen in the air in the preceding stage, and a fuel containing the enriched oxygen and hydrocarbons is provided. An embodiment is shown in which combustion gas is obtained from.

-Seventh Embodiment- FIG. 8 shows an outline of a system according to a seventh embodiment of the present invention. The system of this embodiment includes a blower 39,
It consists of an oxygen enrichment membrane 34, an oxygen concentrating section and duct 45 using a vacuum pump, a city gas combustion section including a burner 36, a cooler 37, a combustion exhaust gas cooling section including a condensed water reservoir 57, and a bathtub 40.

The operation details of this embodiment will be disclosed in order below.

In this embodiment, a blower 39 blows air 31 to the non-gas permeable side 59 of the oxygen enrichment membrane 34 . The suction side of the vacuum pump 33 is connected to the gas permeation side 60 and the pressure is reduced, so a pressure gradient exists from the gas non-permeation side to the gas permeation side across the oxygen enrichment membrane 34.
Part or all of the air component passes through the oxygen enrichment membrane 34 using the pressure gradient as a driving force. The oxygen-enriching membrane 34 allows oxygen to pass through it more easily than other gases, and therefore the oxygen ratio in the gas component after permeating through the oxygen-enriching membrane 34 is higher than before. The membrane-permeable gas 35 containing a high concentration of oxygen is sent through the vacuum pump 33 to the vicinity of the burner 36, which has a combustion section built into a duct 45 connected to the vacuum pump 33, to help burn city gas. The combustion in burner 36 is carried out in duct 4 so that the combustion gas is not diluted.
This is done only inside 5.

The combustion exhaust gas 46 is then cooled using the cooler 37. The combustion exhaust gas 46 contains a considerable amount of water vapor, and upon cooling, condensed water 38 is generated and stored in a condensed water reservoir 57 . Note that the lower part of the duct 45 from which a large amount of condensed water 38 drips is tapered so that the developed condensed water 38 can easily reach the condensed water reservoir 38.
7 is connected. The cooled and dehumidified combustion exhaust gas is sent to the hot water 41 in the bathtub 40 by the blower 9'' through a connecting pipe, and as it becomes bubbles 42, some or all of the carbon dioxide gas present in the combustion exhaust gas is transferred to the hot water 41 in the bathtub 40. During the 4th construction period, it will be melted and a carbonated spring will be created.

It should be noted that, similar to the above, there are some highly popular combustion devices for the city gas 32 shown in the burner 36, and propane gas is also cited as a highly utilized fuel containing hydrocarbons. It is. Also,
The same is true of the need to cool the combustion exhaust gas 46 after the city gas 32 is combusted.

In this example, the method of increasing the concentration of carbon dioxide in the combustion exhaust gas is to increase the concentration of carbon dioxide in the combustion exhaust gas by increasing the oxygen concentration in the air, thereby obtaining a carbonated spring with high physiological effects. There is. The reason why a higher concentration of carbon dioxide gas than that present in the combustion exhaust gas of normal air is required is as explained above, so repeated explanation will be omitted.

As mentioned above, in this invention, in order to increase the concentration of carbon dioxide in the combustion exhaust gas, a method of increasing the oxygen concentration in the air is adopted, but the effect in this case is as follows from equation 0 above. Become.

Cn Hm + (n + 11 + k) Ot
+ p (n + prize + k) N! →nco! +9
Hz O+koz +p (n4 arm + k) N,
・・・・・・・・・■ Formula (where k and p are 0 or positive real numbers. Also, 1 and k indicate the amount of oxygen existing in excess of the theoretically required oxygen ♀5, which is substantially In order to achieve complete combustion, k>0.Since oxygen in the air is used, nitrogen exists in the combustion reaction equation 20', and p in the equation is p-N.
, 10S (molar ratio) becomes smaller, and the combustion exhaust gas (
p(n+cost+k)N! As the proportion of Cog decreases, the proportion occupied by Cog increases, making it possible to create a carbonated spring with a higher concentration.As the oxygen enrichment membrane 34, a polydimethylsiloxane membrane, a poly(4-methylpentene 1) membrane, etc. can be used. It will be done.

Eighth Embodiment FIG. 9 schematically shows a system according to an eighth embodiment of the present invention. This example differs from the seventh example shown in FIG. 8 only in the method of concentrating @ elements in the air,
The types of pumps connected to the gas passing membrane side and the non-permeating side of the oxygen enrichment membrane 34 are different. Only that point will be described below.

This embodiment is an example of a system in which a pressure difference as a driving force necessary for permeation of air 31 through an oxygen enrichment membrane 34 in an oxygen concentrating section is generated by pressurizing the gas non-permeable side. It's raining. That is, the air 31 is pressurized by the pressurizer 47 and passes through the oxygen enrichment membrane 34 . At this time, the oxygen-enriching membrane 34 allows oxygen to permeate through it relatively easily, so that the membrane-permeable gas 35 after passing through the oxygen-enriching membrane 34 has a higher oxygen concentration than normal air.

Ninth Embodiment FIG. 10 schematically shows a system according to a ninth embodiment of the present invention. This embodiment differs from the seventh embodiment shown in FIG. 8 only in the method of concentrating oxygen. Only that point will be described below.

Air 31 is sent to the non-gas permeable side 59 of the non-oxygen enriched membrane 58 by the blower 39 . There is an empty pump 33 on the gas permeation side.
Since the suction side of the filter is connected and the pressure is reduced, the enrichment membrane 58
There is a pressure gradient from the gas non-passage side to the permeation side across the air, and part or all of the air component passes through the intermembrane 58 using this pressure gradient as a driving force. Non-oxygen enriched membrane 5
Oxygen 8 is more difficult to pass through oxygen than many other gases, and therefore the oxygen ratio in the membrane-permeable gas component after passing through the non-oxygen-enriched membrane 58 is lower than that of normal air. On the other hand, conversely, the concentration of oxygen in the gas remaining on the gas non-permeable side 59 is higher than the oxygen concentration in the normal air.

10th Embodiment - FIG. 11 schematically shows a system according to a 10th embodiment of the present invention. In this embodiment, the ninth
This example differs from the example in the type of pump connected to the gas permeation side and the non-permeation side of the non-oxygen enriched membrane 58, and only this point will be described below.

This embodiment shows a system in which a pressure difference is generated by pressurizing the non-permeable side as the driving force required for the air 31 to permeate through the non-oxygen enriched membrane 58 in the oxygen concentrating section. That is, the air 31 is pressurized by the pressurizer 47 and passes through the non-oxygen enriched membrane 58. At this time, the non-oxygen enriched membrane 58 is difficult for oxygen to pass through compared to many other gases, and therefore the oxygen ratio in the membrane-permeable gas component after passing through the non-oxygen enriched membrane 58 is lower than that of normal air. It has become.

On the other hand, conversely, the concentration of oxygen in the gas remaining on the gas non-permeable side 59 is higher than the oxygen concentration in normal air.

1. Eleventh Embodiment FIG. 12 schematically shows a system according to an eleventh embodiment of the present invention. This embodiment differs from the seventh embodiment shown in FIG. 8 only in the method of concentrating the oxygen concentration in the air 31, and only this point will be described below.

Adsorption tower 51 and valve A48 are pressurizer 47) 1'lube C
50, and the adsorption tower 51 and knob A4
A suction pipe of the vacuum pump 33 is connected to the connection between the valve B49 and the valve B49. Furthermore, the top portion of the adsorption tower 51 and the duct 45 are connected by a connecting pipe 54 with a valve C50 in between.

Here, in order to explain the oxygen concentrating method in more detail, a partially cutaway perspective view of the adsorption tower 51 is shown in FIG. 13. In the adsorption tower 51, an adsorbent 53 that easily adsorbs gases other than oxygen is installed in a honeycomb shape, so that gas can be easily moved from the bottom of the tower to the top of the tower.

Concentration of oxygen in the air is carried out as follows. Valve C50 and valve A4B are open, valve B4
9 is a pressurizer 47 from the bottom of the adsorption tower 51 in the closed state.
Air 31 is sent at.

The adsorbent 53 installed in the adsorption tower 51 easily adsorbs a relatively large amount of nitrogen, and as a result, oxygen is sent to the duct 45 from the top of the tower in a state with a higher concentration of oxygen than the original air 31.

In this example, zeolite is used as an adsorbent that easily adsorbs gases other than oxygen.

After a predetermined period of time, the vacuum pump 40 is turned on with the valves A18 and C50 closed and the valve B49 opened.
By operating the adsorbent 53, the gas adsorbed by the adsorbent 53 is released and released into the atmosphere, and the adsorbent 3 is regenerated.

-Twelfth Embodiment- FIG. 14 schematically shows a system according to a twelfth embodiment of the present invention. In this embodiment, the first
The method of concentrating oxygen and the route from the oxygen concentrator are different from the first embodiment, and only these points will be described below.

The pressurizer 47 and the adsorption tower 51 are connected to each other with a valve A48 in between, and the connecting vibe between the adsorption tower 51 and the valve A48 is connected to the suction side of the vacuum pump 40 with a valve B49 in between.

The discharge side of the vacuum pump 40 is connected to a duct 45. The adsorbent 53 in the adsorption tower 51 is relatively easy to adsorb oxygen. Concentrating the oxygen concentration in the air is performed as follows.

Valve A48 and valve C50 are open, valve B4
9 is in a closed state, air 31 is sent to the adsorption tower 51 under pressure by the pressurizer 47, and a relatively large amount of oxygen is adsorbed in the adsorption tower 51, and as a result, the oxygen concentration in the non-adsorbed gas 52 is It is lower than normal air. Non-adsorbed gas 52
is released into the atmosphere through valve C50 connected to the top of adsorption tower 51.

After oxygen is adsorbed by the honeycomb-shaped adsorbent 53 installed in the adsorption tower 51, valves C50 and A
4B is in a closed state and valve B49 is in an open state, the vacuum pump 40 is operated to remove the honeycomb-shaped adsorbent 53.
The oxygen adsorbed by the gas is released, and the gas with increased oxygen concentration is sent to the vicinity of the burner 36.

13th Embodiment Figure 15 shows a 13th embodiment of the present invention, in which the means for feeding concentrated carbon dioxide gas into the liquid includes means for pressurizing concentrated combustion gas and dissolving it in water. An embodiment of the invention relating to a manufacturing device is shown below.

In this embodiment, city gas 72 is used as a fuel containing hydrocarbons, a carbon dioxide gas separation membrane 79 is used as a device for concentrating the obtained carbon dioxide gas, and a pressure pump 82 is used as a device for dissolving carbon dioxide gas under pressure. A mixing tank 88 is used.

The outline of the system of this embodiment is as follows: a duct 1-74, a combustion section for city gas 72 using a burner 73, etc., a cooling section for combustion exhaust gas 75 using a cooler 76, a section for cooling combustion exhaust gas 75 using a carbon dioxide gas separation membrane 79, a vacuum pump 82, etc. It consists of a concentration section for the carbon dioxide contained therein, a carbon dioxide dissolving section using a pressurizer 83 and a mixing tank 88, and a water tank 84.

Hereinafter, the carbonated water generation function of this embodiment will be disclosed in order.

City gas 72 is combusted with the introduced air 71. Combustion in the burner 73 is performed only inside the duct 74 so that the generated combustion exhaust gas 75 is not diluted unnecessarily.

The combustion exhaust gas 75 is cooled using a cooler 76, and at that time,
Condensed water 77 is generated and discharged outside the system.

Note that the lower portion of the duct 74 from which a large amount of condensed water 77 drips is tapered so that the generated condensed water 77 can be easily discharged out of the system.

The cooled and dehumidified combustion exhaust gas 75 is sent to the membrane module 81 to concentrate the carbon dioxide contained therein.

The membrane module 81 is divided into a non-permeation side 90 and a permeation side 91 with a carbon dioxide gas separation membrane 79 in between, and the membrane module 81 is divided into a non-permeation side 90 and a permeation side 91 with a carbon dioxide gas separation membrane 79 in between.
5 is first sent to the non-permeate side 90 of the membrane module 81.

The suction side of the vacuum pump 82 is connected to the permeate side 91 and the pressure is reduced, so a pressure gradient exists from the gas non-permeate side 90 to the gas permeate side 91 across the carbon dioxide separation membrane 79. Part or all of the gas components will pass through the carbon dioxide separation membrane 79 as a driving force. The carbon dioxide gas separation membrane 79 allows carbon dioxide to pass through it more easily than other gases, and therefore, the carbon dioxide ratio in the gas component after passing through the carbon dioxide gas separation membrane 79 is higher than that before permeation.

On the other hand, the non-permeable gas 78 whose degree of carbon dioxide gas immersion has become low is discharged to the outside of the system.

Here, as the carbon dioxide gas separation membrane 79, an ethyl/diamine-containing polymer membrane, a polydimethylsiloxane membrane, a natural rubber membrane, or the like is used. In this example, a polydimethylsiloxane film is used.

The membrane-permeable gas 8o with increased carbon dioxide concentration is discharged by a vacuum pump 82, and then sent to a carbon dioxide dissolving section consisting of a pressurizer 83 and a mixing tank 88. The suction port of the pressurizer 83 is connected to the discharge port of the vacuum pump 82, and the discharge port of the pressurizer 83 is connected to a water tank 84 and a mixing tank 88 via a pipe. Further, the suction port of the pressurizer 83 is connected to a water tank 84 via a pipe with a pressure regulating valve 89 in between.

By operating the pressurizer 83 and adjusting the pressure regulating valve 89, the membrane permeable gas 8o, which is concentrated in carbon dioxide discharged from the vacuum pump 82, and water 85 are mixed under pressure, while the mixing tank 8
Sent to 8th grade. During this time, carbon dioxide gas, which has a solubility in water several times higher than air, dissolves more selectively in water.

The water 85 in which the carbon dioxide gas has been dissolved becomes a water flow 86 and flows into the water tank 84.
The carbonated water with high concentration of carbon dioxide gas is obtained by passing through the pressure regulating valve 99 and again to the suction port of the pressurizing machine 83.

It should be noted that, similar to the above, there are some highly popular combustion devices for the city gas 72 shown in the burner 73, and propane gas is also cited as a highly utilized fuel containing hydrocarbons. It is. However, as can be seen from the right side of equation (■), the proportion of carbon dioxide in the combustion gas is as low as about 10%, and the carbon dioxide concentration obtained by simply bubbling this into water at 40°C is approximately 1100.
It can be said that it is impossible to set it higher than pp.

Whether the resulting carbonated water is used as a drink or for bathing, the higher the carbon dioxide concentration, the more refreshing the water will feel.
Alternatively, it is a well-known fact that the effect of promoting blood circulation is enhanced.

If the concentration of carbon dioxide in water is only a few ppm, it must be said that the concentration is extremely low to obtain any useful effect.In order to dissolve combustion gas in water and obtain carbonated water that can be used for practical purposes, it is necessary to There is a need to concentrate the carbon dioxide concentration in water.

In this embodiment, in order to increase the carbon dioxide concentration in water with carbonated water and 1-, a carbon dioxide gas separation membrane 79 is used to
5, and the combustion exhaust gas 75 with increased carbon dioxide concentration is pressurized by a pressurizer 83.
The objective was achieved by combining the method of dissolving it in a liquid.

In the case where only the carbon dioxide gas separation membrane 79 is too high, the dark blue level will naturally be lowered, and it is very clear that the concentration due to only the pressurizer 83 is the same. Although it is possible to increase the amount of dissolved water, the danger of high pressure 1. It can be said that there are many problems such as noise.

The combined use of the carbon dioxide gas separation membrane 79 and the pressurizer 83 can be said to be safe and highly convenient, since it does not compensate for the above-mentioned problems.

In addition, after the city gas 72 is combusted, the combustion gas 75 is cooled down, but immediately after all the combustion gas 75 is burned,
The temperature is between several 100 degrees Celsius and several 1000 degrees Celsius, and this cooling is self-effective in ensuring safety.

-Fourteenth Embodiment- Figs. 16 and 17 show a 14th embodiment in which the means for concentrating carbon dioxide in the combustion gas is provided with a means for removing moisture contained in the combustion gas in its preceding stage. It's raining.

As seen in these figures, this carbonated spring production apparatus has means A for obtaining combustion gas from fuel containing hydrocarbons. The means A uses air 1 by pumping with the pressurizer 107.
The city gas 102 containing hydrocarbons is provided in the duct 103 through which city gas 102 containing hydrocarbons is sucked.
The burner 127 faces so that it is fed separately. The combustion device using city gas 102 is preferably of an easy-to-use type that can be ignited and extinguished with a single button or switch, which has become popular in recent years. In addition to using city gas 102, propane gas, which is highly popular, may be used. The burner 127 was placed inside the duct 103 because
This is to prevent the combustion gas 104 from being diluted by the air outside the duct 103. As a result, the combustion gas 10
4 is obtained. The reaction formula at that time is as shown in formula 0.

The reaction equation when there is excess air during combustion is as shown in equation 0.

The combustion gas 104 is sent next by the pressurizer 107, but immediately after generation, it is at a high temperature of several 1000 degrees Celsius to several 100 degrees Celsius, so if it is sent as it is into the hot water 121 in the bathtub 122, it will not be safe for use. Lacks sex. Therefore, similarly to the above, since it is necessary to lower the combustion gas 104 to about several tens of degrees Celsius, a cooler 105 is provided around the outer periphery of the duct 103.

This cooler 105 may be of either a water-cooled type or an air-cooled type 1, or may be of a combination type of a water-cooled type and an air-cooled type. The arrangement of the cooler 105 is the duct 1
In addition to the outer periphery of 03, it may be arranged between the inner periphery or on both the inner periphery and the outer periphery. The combustion gas 1
04 contains moisture, and as it cools down, it becomes dak) 103
Since condensed water 106... is formed in the duct 103, in order to remove the condensed water 106...
The bottom part is tapered 103a to facilitate outflow, and a roundabout water reservoir 128 is connected to the inclined lower end of the taper 103a to store the condensed water 10G. Here, the cooling means is also part of the dehumidification means B.

The main parts of the dehumidifying means B are mainly composed of adsorption towers 113, 113 and heaters 112, 112. Pressure machine 107
The connecting pipe 114 from above branches into two pipes 114a and 114b, and the upper connecting pipe 115
A, 115b converge into one pipe B. Between the pipes 114a and 115a, a pair of valves 108 and 109 are provided above and below the adsorption tower 113, and a vacuum pump 123 is connected to the pipe from between the lower valve 108 and the adsorption tower 113. It is provided. 5. In the pipe section between the pipes 114b and 115b. A pair of valves 110 and 111 are provided above and below the adsorption tower 113, and another vacuum pump 12 is connected to the pipe between the lower valve 110 and the adsorption tower 113.
4 is provided. One of the two adsorption towers 113, 113 works for moisture adsorption, and at that time, the adsorption tower 11 on the flh side
is for playback. In this way, two adsorption towers 113, 11
3 were arranged in parallel to enable continuous adsorption and dehumidification of water vapor. The internal structure of each adsorption tower 113 is shown in FIG. 17 with a portion cut away. This adsorption tower 113 has adsorbents 125 vertically spaced apart in the internal space of the tower body, and the adsorbents 125 have a circular honeycomb structure made of activated alumina or the like with excellent adsorption properties. It has become a thing. Combustion gas 114 is fed into the adsorption tower 113 by a pressurizer 117, and the adsorbent 1
25... allows moisture to be adsorbed.

One of the two adsorption columns 113, 113, for example the first
The one on the left in Figure 6 functions for adsorption, the other for regeneration, and 1. To explain this assuming a case where the adsorption tower functions as follows, valves 108 and 109 of one adsorption tower 113 are both open,
As a result, the combustion gas 114 from the pressurizer 117 enters the adsorption tower 113 with water vapor, and the adsorbent 125...
・Only water vapor is removed through the

The combustion gas 104 from which water vapor has been removed is transferred to the upper connecting pipe 11
5 into the communication pipe 130 y44. The heater 112 and vacuum pump 123 of one adsorption tower 113 are not operated during adsorption. The other (16th
Inside the adsorption tower 113 (on the right side of the figure), there are valves 110, 11
1 are closed, no combustion gas 104 is introduced from the pressurizer 117, but the heater 112 and vacuum pump 124 operate to remove moisture adsorbed by the adsorbent 125. Pump 124 between 110 and 111
Regeneration is carried out by removing the outer parts of the tower through a filter. For the regeneration, in addition to operating the heater 112 or regenerating under reduced pressure using the vacuum pump 124, both of these means may be used in combination (7). The adsorption tower 113 that was on the adsorption side will next become the adsorption side, and the adsorption tower 113 that was on the adsorption side will then become the regeneration side, so at least one adsorption tower 113 has been regenerated and can always be used for adsorption. The heat source of the heater 112 is not only from other systems but also from the combustion gas 1 generated by this device.
．． If the exhaust heat of 04 is used, the heat can be used effectively. The cooled and dehumidified combustion exhaust gas from the adsorption side tower 113 is sent to the non-permeate side of the separation membrane 117 through the communication pipe 130 as a non-adsorbed gas 126 to the adsorbent 125 .

This feeding is performed by a pressurizer 107 and a vacuum pump 118, which will be described later.
This occurs due to A space is provided in the concentrating means C, and the space is partitioned into front and back by a separation membrane 117, and the membrane part permeation gas 131 from the space in front of the separation membrane 117 is
is intended to be guided through a tube. Separation membrane 117
Since the suction port of the vacuum pump 118 is connected to the permeate side of the pump 118, the permeate side is reduced in pressure by the pump 118, and a pressure gradient is generated from the non-permeate side to the permeate side, and due to this pressure gradient, Some or all of the gas components will pass through the separation membrane 117. The separation membrane 117 allows the carbon dioxide gas to pass through it relatively more easily than other gases, and as a result, the ratio of carbon dioxide gas in the gas on the permeation side of the separation membrane 117 is lower than the ratio of carbon dioxide gas in the gas on the non-permeation side. , and carbon dioxide gas becomes concentrated. Examples of the separation membrane 117 include an ethylenediamine-containing polymer membrane (for example, one obtained by graft polymerizing styrene to a polytetrafluoroethylene membrane and immersing it in ethylenediamine), a polydimethylsiloxane membrane, a natural rubber membrane, and the like. It will be done. The carbon dioxide ratio in the membrane-permeable gas 116 obtained by using the separation membrane 117 is higher than the carbon dioxide ratio in the combustion gas 104 generated immediately after the combustion of the city gas 102. The membrane permeable gas 116 is discharged by a vacuum pump 118 and passed through a pipe 119.
Air bubbles 1 are sent through the bathtub 122 into hot water 121.
20, part or all of the carbon dioxide gas present in the membrane-permeable gas 116 is dissolved in the hot water 121, and carbonated spring is obtained. Note that this concentrated carbon dioxide gas is transferred to the bathtub 12.
The means for feeding the liquid into the interior of 2 consists of a vacuum pump 118 and a connecting pipe 119.

As mentioned above, polydimethylsiloxane membranes and natural rubber membranes were cited as examples of the carbon dioxide gas separation membrane 117, but examples of their separation are described in the literature (written by Tsutomu Nakayo, "Function of Membranes", Kyoritsu Shuppansha 1).
Published on September 15, 1985), the membrane permeation selectivity of each gas component (membrane permeability coefficient P i (1
”COx + Nz l Ori Caa (sTp
Table 1 is obtained as an example of the ratio of ) cm/c4-sec-anHg).

From Table 1, it can be seen that carbon dioxide gas has higher membrane permeability than oxygen and nitrogen, and that carbon dioxide gas can be easily concentrated through membrane permeation.

Next, we will discuss the necessity of dehumidifying combustion gas. For carbon dioxide concentration systems, use systems with high carbon dioxide separation characteristics (an example is the carbon dioxide separation membrane mentioned above).
are used, but these often also selectively separate polar water vapor as well as carbon dioxide. For example, according to the literature ("Membrane separation process design method"; edited by the Membrane Society of Japan, published by Kitami Shobo), the gas Relative transmission rate is Hz
O>Cot>Ox>Nz. In such a case, if a large amount of water vapor (H, O) is present, selective separation is first performed on the water vapor, and it is possible that the selective separation and concentration of carbon dioxide gas may not be performed satisfactorily. It's easy to think of. In such a case, it can be said that it is necessary to first dehumidify the combustion gas before concentrating it in order to increase the concentration level of carbon dioxide gas.

In order to cope with such a case, the present invention is designed to specifically dehumidify the combustion gas.

〔Effect of the invention〕

Since the method and apparatus for producing carbonated springs according to the inventions described in claims 1 to 5 are configured as described above, it is possible to use widely used combustion exhaust gas such as city gas and propane gas, and it is easy to obtain. There will be no more inconvenience or trouble in handling, and carbonated springs can be obtained whenever needed, and carbonated springs that are physiologically effective can be obtained.

The carbonated spring manufacturing apparatus according to the invention as set forth in claim 3 is the apparatus as set forth in claim 2, wherein the means for obtaining combustion gas from the fuel containing hydrocarbons includes means for concentrating oxygen in the air in a preceding stage thereof; Since the combustion gas is obtained from concentrated oxygen and fuel containing hydrocarbons, the combustion gas can be obtained efficiently.

The carbonated spring manufacturing apparatus according to the invention set forth in claim 4 is the apparatus set forth in claim 2 or 3, wherein the means for concentrating carbon dioxide in the combustion gas includes, in a preceding stage, a means for removing moisture contained in the combustion gas. This makes it easier to concentrate carbon dioxide gas. It is a permanent type that can be operated at any time as needed, providing a carbon dioxide gas supply source that can be used for a long period of time, and since carbon dioxide gas is effectively concentrated through dehumidification and supplied to hot water, it is physiologically You can get effective carbonated springs.

The carbonated spring production apparatus according to the invention set forth in claim 5 is the apparatus set forth in any one of claims 2 to 4, in which the means for feeding concentrated carbon dioxide gas into the liquid pressurizes the concentrated combustion gas. Since it involves a process of dissolving in water, carbonated springs can be efficiently obtained by pressurized melting. In addition to the above effects, the concentration of carbon dioxide in the combustion exhaust gas, which could not be used practically as carbonated water with normal combustion, can be concentrated to a practical carbon dioxide concentration, making it easier and more convenient. It is now possible to produce highly concentrated carbonated water.

[Brief explanation of the drawing]

FIG. 1 is a schematic cross-sectional view of the system of the first embodiment of the carbonated spring production apparatus according to the present invention, FIG. 2 is a schematic cross-sectional view of the system of the second embodiment, and FIG. 3 is a schematic cross-sectional view of the system of the third embodiment. Fig. 4 is a schematic sectional view of the system of the fourth embodiment, Fig. 5 is a schematic sectional view of the system of the fifth embodiment, Fig. 6 is a partially cutaway perspective view of the adsorption tower, and Fig. 7 is the sixth embodiment. FIG. 8 is a schematic cross-sectional view of the system of the seventh embodiment, FIG. 9 is a schematic cross-sectional view of the system of the eighth embodiment, FIG. 10 is a schematic cross-sectional view of the system of the ninth embodiment, and FIG. The figure is a schematic sectional view of the system of the 10th embodiment, Fig. 12 is a schematic sectional view of the system of the 11th embodiment, Fig. 13 is a partially cutaway perspective view of the adsorption tower, and Fig. 14 is the system of the 12th embodiment. Schematic sectional view,
Fig. 15 is a schematic cross-sectional view of the system of the 13th embodiment;
The figure is a schematic sectional view of the system of the fourteenth embodiment, and FIG. 17 is a partially cutaway perspective view of the adsorption tower. 5.36.73,127. A...Means for obtaining combustion gas from fuel containing hydrocarbons 9.10.1521.51
, 58.81... Means for concentrating carbon dioxide in combustion gas 3', 10.17.35'. 82.83,118... Means for sending concentrated carbon dioxide gas into the liquid 34.58... Means for concentrating oxygen in the air B... Means for removing moisture contained in combustion gas 88...・Means for pressurizing concentrated combustion gas and dissolving it in water

Claims (1)

[Claims] 1. A process for obtaining combustion gas from a fuel containing hydrocarbons, a process for concentrating carbon dioxide in the combustion gas,
A method for producing carbonated springs, comprising a process of sending the concentrated carbon dioxide gas into the liquid. 2. means for obtaining combustion gas from a fuel containing hydrocarbons;
A carbonated spring production device comprising means for concentrating carbon dioxide in the combustion gas and means for sending the concentrated carbon dioxide into a liquid. 3. The means for obtaining combustion gas from fuel containing hydrocarbons is provided with a means for concentrating oxygen in the air in the preceding stage, and obtaining combustion gas from the enriched oxygen and fuel containing hydrocarbons. The carbonated spring production apparatus according to claim 2. 4. The carbonated spring producing apparatus according to claim 2 or 3, wherein the means for concentrating carbon dioxide in the combustion gas is provided with means for removing moisture contained in the combustion gas at a preceding stage thereof. 5. The carbonated spring manufacturing apparatus according to any one of claims 2 to 4, wherein the means for feeding the concentrated carbon dioxide gas into the liquid includes means for pressurizing the concentrated combustion gas and dissolving it in water.