JPH03186269A - Apparatus for producing carbonated spring - Google Patents

Abstract

PURPOSE:To obtain the carbonated spring having a high concn. and a high physiological effect by providing a cavity type pressure buffer between a thickening means and a feeding means. CONSTITUTION:The combustion gas 4 generated by closing a valve 11, opening valves 10, 12, and burning a city gas 2 in a duct 8 by obtaining the air 1 generated by the operation of a pressurizing machine 9 is sent into an adsorption column 19. The gas 4 is cooled by a cooler 5 and the condensate 6 is stored in a condensate reservoir 7, by which the gas 4 is dehumidified. Carbon dioxide is mainly adsorbed in an adsorption column 19 and a non-adsorbed gas 20 is discharged. A suction pump 21 is operated after the adsorption to previously maintain the inside of the cavity type pressure buffer 13 in a reduced pressure state. The valves 10, 12 are then closed and the valve 11 is opened to flush the concd. carbon dioxide into the cavity type pressure buffer 13 in the reduced pressure state, by which the desorption of the carbon dioxide in the column 19 is accelerated. The concd. carbon dioxide is sent into hot water 16 by the pump 21, by which the carbonated spring is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a carbonated spring production device that can easily produce physiologically effective carbonated springs.

[Conventional technology]

For example, in Japan, when the hot water in the bathtub is carbonated spring containing carbon dioxide gas, the blood flow in the human body increases during bathing, and it has physiological effects (such as reducing fatigue and keeping warm). Medical Newspaper No. 3165 (December 22, 1980)
(Published in Japan) ``Artificial carbonated bath and microcirculation'' etc.

[Problem to be solved by the invention]

The carbonated spring can be obtained by adding a mixture of carbonate and acid to generate carbon dioxide gas through their reaction, or by supplying carbon dioxide gas into hot water using a cylinder or tank containing carbon dioxide gas. There are methods etc. 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, which is a time-consuming problem. be. 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, but since it uses a high-pressure container such as a cylinder, it becomes cumbersome to handle, and the cylinder There is a problem that it is not always easy to obtain such materials.

This invention was made in view of the above circumstances, and its object is to eliminate inconvenience and trouble in obtaining and handling, and to make it possible to obtain bundles of charcoal whenever necessary. At the same time, the purpose is to make it possible to obtain carbonated springs with high concentration and physiological effects, and to improve the durability of equipment.

[Means to solve the problem]

In order to solve the above problems, the carbonated spring production apparatus according to the present invention includes a means for obtaining combustion gas from a fuel containing hydrocarbons, a means for concentrating carbon dioxide in the combustion gas, and a means for converting the concentrated carbon dioxide into a liquid. In the carbonated spring manufacturing apparatus having a means for feeding into the carbonated spring, a cavity pressure buffer is provided between the means for concentrating and the means for feeding.

[For production]

The carbonated spring production device according to the present invention burns fuel containing hydrocarbons to generate carbon dioxide gas, which is used as a carbon dioxide gas source, based on the combustion gas generation combustion reaction shown by the following formula. .

CnHm+ (+α to n+m/4+) Q, + (4n+
m+4 k+β) Nt + 7 HI O+ t C
Ot-'(n+ε)COt+(m/2+y)Hz
0+ (k+α)Os + (4n+m+4+
β)N.

・・・・・・・・・Formula 0 However, the molar ratio N, /○, of O, N, in the air is approximately 4. The combustion surplus air consists of kO, and 4kN, and the component ratio of carbon dioxide non-concentrated gas is O, :Nt :H
It was set as tO:COt=α:β:γ:ε. n and m are natural numbers, and k, α, β, γ, and ε are positive real numbers.

Carbonated springs are made by concentrating the carbon dioxide gas in the generated combustion gas (the right side of the formula ■) and sending it into the liquid, dissolving the carbon dioxide gas in the same wave (for example, hot water). If a hollow pressure buffer is provided between the feeding means and the pressure of the buffer is lower than that of the concentrating means, the concentrated carbon dioxide gas will rapidly flow into the buffer and a large amount of liquid will be generated per hour. Due to the presence of the buffer, even if there is a pressure fluctuation in the concentration means, it will be absorbed.

〔Example〕

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

In this embodiment, city gas is used as the fuel containing hydrocarbons. FIG. 1 shows an outline of a system according to an embodiment of the present invention. The system of this example is
A means (process) A for obtaining combustion gas from fuel, a means (process) B for concentrating carbon dioxide in the combustion gas,
and means (process) C for sending the concentrated carbon dioxide gas into the liquid.

Means A for obtaining combustion gas includes a duct 8 through which air 1 is sucked in by the pumping operation of a pressurizer 9, and a burner is installed in the duct 8 so that city gas 2 containing hydrocarbons is separately sent. 3 is coming. The part of the burner 3 where combustion is performed faces only the inside of the duct 8 so that the generated combustion gas 4 is not diluted by the air outside the duct 8. The combustion device using city gas 2 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. city gas 2
In addition to the method using propane gas, which is widely used, it is also possible to use propane gas. The reason why burner 3 was placed facing inside duct 8 was as follows.
This is to prevent the combustion gas 4 from being diluted by the air outside the duct 8.

The combustion gas 4 is sent next by the pressurizer 9, but immediately after generation, it is at a high temperature of several 100°C to several 100°C, so if it is sent as it is into the hot water 16 in the bathtub 15, it will not be safe for use. It lacks. Therefore, the combustion gas 4 is heated to several tens of degrees Celsius.
A cooler 5 is provided around the outer periphery of the duct 8 because it is necessary to lower the temperature to a certain degree. The cooler 5 may be either water-cooled or air-cooled, or may be a combination of water-cooling and air-cooling. The cooler 5 may be arranged not only on the outer periphery of the duct 8 but also on the inner periphery thereof, or may be arranged on both the inner periphery and the outer periphery. The combustion gas 4 contains a considerable amount of moisture, and as it cools, it forms as condensed water 6 in the duct 8. In order to effectively remove this condensed water 6, the bottom of the duct 8 is The taper 8a makes it easy to flow out, and a condensed water reservoir 7 is connected to the inclined lower end of the taper 8a to store the condensed water 6. Here, the means for cooling is also part of the means B for concentrating.

The main part of the concentrating means B is an adsorption tower 19. The adsorption tower 19 and the pressurizer 9 are connected by a pipe 24.
is provided with a valve 10. The internal structure of the adsorption tower 19 is shown in FIG. 2 with a portion cut away. This adsorption tower 19 has adsorbents 22 vertically spaced apart in the internal space of the tower body, and the adsorbents 22 are made of, for example, a zeolite material and have a honeycomb structure. There is.

Combustion gas 4 is fed into the adsorption tower 19 by the pressurizer 9 and absorbed by the adsorbent 22...) (x O>CO!>
It is designed to be adsorbed in the order of Nz>Ox. A pipe 25 is connected to the upper end of the adsorption tower 19, and the valve 12 is provided in the intermediate pipe 25. When the valve 12 is opened, the non-adsorbed gas 20 that is not adsorbed in the adsorption tower 19 is transferred to the pipe 25.
It is designed to be discharged out of the system through. Connecting pipe 2
The space between the valve 10 on 4 and the adsorption tower 19 and the bath 15 is connected by another pipe 14, as shown in FIG. On the intermediate pipe 14, a valve 11 and a suction pump 21 are provided in order from the adsorption tower 19 side, and the valve 11
A hollow pressure buffer 13 is provided between the pump 21 and the suction pump 21 .

During the adsorption process, valve 11 is closed and valve 10.12 is left open. By operating the pressurizer 9, air 1 is sucked in through the inlet of the duct 8, and the city gas 2 supplied from the burner 3 obtains the same air 1 and enters a combustion state within the duct 8. As a result, the generated combustion gas 4 is transferred from the duct 8 to the connecting pipe 24 by the pressurizer 9.
It is sent to the adsorption tower 19 through. The combustion gas 4 in the duct 8 is cooled by the cooler 5, and the condensed water 6...
The combustion gas 4 is dehumidified by being stored in the condensed water reservoir 7. The dehumidified combustion gas 4 then enters a concentration process. In the concentration process, the combustion gas 4 is pressurized by the pressurizer 9 and sent into the adsorption tower 19 . The adsorbents 22 in the adsorption tower 19 have the property of adsorbing carbon dioxide gas more easily than nitrogen and oxygen, so in the adsorption tower 19,
Mainly carbon dioxide gas will be adsorbed. Non-adsorbed gas 20 is discharged through connecting pipe 12. After adsorption, the suction pump 21 is operated to bring the inside of the cavity pressure buffer 13 into a reduced pressure state in advance. Valve 10.12 is then closed and valve 11 is opened while suction pump 21 is running.

As a result, the concentrated carbon dioxide gas rapidly flows into the hollow pressure buffer 13 which is in a reduced pressure state.
The separation of carbon dioxide gas within the adsorption towers 1 and 9 becomes rapid and active. The concentrated gas is sent to the hot water 16 in the bathtub 15 by the suction pump 21, and carbonated spring is generated. Buffer 13
After the concentrated gas is once stored inside the suction pump 21
Since the carbonated spring water is fed into the bathtub 15, the amount of carbonated spring produced becomes uniform. The bubbles 17... facilitate the dissolution of the gas into the hot water 16. Due to the presence of the cavity-type pressure buffer 13, even if there is a pressure fluctuation within the adsorption tower 19, it is effectively absorbed by the buffer 13, and as a result, it is possible to suppress deterioration of the suction pump 21 etc. due to pressure fluctuation. Become.

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 approximately 60 ppm or higher, an increase in blood flow in the human body during bathing is observed, and the physiological effect of carbonated springs is It is generally recognized that there are 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 (CH4) and propane gas (CiH*), 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).
CH4+20x + 8 Nt −'Cot +2Hs O+8N1～・−・・−・・−
・-■Formula%Formula% -'3CO1+4H! O+2ONx'−−・〜・−■
However, the above formula is a theoretical combustion formula, and in order to achieve substantially complete combustion, the amount of air is usually increased by several times the theoretical air amount in the above formula.
Increase by several times. For example, if the increase is 50%, the above equations 0 and ■ will become CH4+30! +12N
t-Co! +2H10+O* +12Nl...-■Formula%
Formula %...--The combustion gas of the ■Formula is shown on the right side of both the ■Formula and the ■Formula.The ratio of carbon dioxide gas in the combustion gas is 6.
3%, 7.1% in dry gas excluding water vapor component,
It can be seen that it is 7.6% for formula (2) and 8.5% for dry gas.

Here, we will examine the amount of carbon dioxide dissolved when combustion gas having a carbon dioxide ratio of around 7% is sent into hot water. Chemistry Handbook Basic Edition (revised 3rd edition; June 25, 1980 Maruzen■
According to the publication), the concentration of carbon dioxide dissolved in water is approximately 1 at a water temperature of 40°C (normal bathing water temperature is around 40°C).
000pp+m. Note that this value is a saturated equilibrium value when the carbon dioxide pressure in the gas phase is 1 ata +,
This value can only be reached after a considerable amount of contact time between carbon dioxide gas and hot water. When gas exists as bubbles 17 in hot water 16, the atmospheric pressure is approximately 1at11, and if the internal carbon dioxide ratio is 7%, the carbon dioxide partial pressure is approximately 0.07at.
m. Generally speaking, considering that the amount of gas dissolved in water is approximately proportional to the gas partial pressure in the gas phase, carbon dioxide gas is
% containing a total pressure of approximately 1 at- is made to exist as bubbles 17 in hot water 17 at about 40°C and dissolved, a maximum of 1000 ppn+ Xo, 0?
Only carbonated springs with a dissolved carbon dioxide concentration of about 70 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 is difficult to reliably achieve a carbon dioxide concentration of 60 ppm+, which has a physiological effect, by simply introducing gas with a carbon dioxide ratio of about 7% into the hot water 16 in the form of bubbles. I have to say it.

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 gas is approximately 150 ppm than when it is approximately 60 pp+*. 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 gas into the hot water 16 and dissolving carbon dioxide gas.

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

In this embodiment, the adsorption tower 19 is used as described above in order to increase the concentration of carbon dioxide in the combustion gas.

In the above embodiment, since there is only one adsorption tower, the supply of concentrated carbon dioxide gas to the hot water may be discontinuous. In order to eliminate this problem, multiple adsorption towers are installed,
It is also possible to continuously concentrate the carbon dioxide gas.

The adsorption tower 19 can also be of the type shown in FIG. In other words, the adsorption tower 19 allows the adsorbent in the adsorption tower 19 to adsorb carbon dioxide gas before desorbing the concentrated carbon dioxide gas. Compared to the case where no adsorption is performed, the amount of heat generated per unit time is smaller, and as a result, the cooler 5 can have a smaller capacity.

〔Effect of the invention〕

Since the carbonated spring production device according to the present invention is configured as described above, it is possible to use widely used combustion gas such as city gas and propane gas, and it can be installed permanently and is inconvenient and troublesome to obtain and handle. You will no longer have to drink water, and you will be able to get carbonated spring water whenever you need it. In particular, it will be possible to uniformly obtain carbonated springs with high concentration and physiological effects, and the durability of equipment will be improved.

[Brief explanation of drawings]

Claims (1)

[Claims] 1. A means for obtaining combustion gas from a fuel containing hydrocarbons;
In the carbonated spring production apparatus, which has means for concentrating carbon dioxide in the combustion gas and means for feeding the concentrated carbon dioxide into the liquid, a cavity-type pressure buffer is provided between the means for concentrating and the means for feeding. A carbonated spring production device characterized by being provided with: