JPH07114791B2 - Method and apparatus for producing carbonated hot water - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and an apparatus for artificially generating hot carbonated water. The present invention is used as a bath device.

〔Overview〕

The present invention is a method and a device for producing carbonated hot water in which carbon dioxide gas is dissolved in warm water to artificially obtain a carbonated spring, by dispersing carbon dioxide gas in the hot water in the hot water supply pipe, by a simple device and method, This is an effective and continuous method for obtaining high-concentration carbonated hot water.

[Conventional technology]

Since carbonated springs have an excellent heat-retaining effect, they have been used for a long time in bathing areas where hot springs are used. It is considered that the heat retaining effect of the carbonated spring is basically because the body environment is improved by the peripheral vasodilatory effect of the contained carbon dioxide gas. In addition, percutaneous infiltration of carbon dioxide causes an increase and dilation of the reticulovascular bed, improving blood circulation in the skin. Therefore, it is said to be effective in treating degenerative lesions and peripheral circulatory disorders.

Since carbonated springs have such excellent effects, attempts have been made to artificially mix them. For example, carbonated hot water was obtained by a method of feeding carbon dioxide gas in the form of bubbles into a bath, a chemical method of acting a carbonate and an acid, a method of pressurizing and enclosing hot water and carbon dioxide gas in a tank for a certain period of time. .

However, these methods are considered to be inefficient methods due to bubble size, chemical quantity problems, equipment and cost issues. For this, see Lichito, Baltimore, Waverly, eds., Medical Hydrogen (1963), pages 311 to 320, by McClellan, "Carbon Dioxide Bath" (Mcclellan, WS, "Car."
bon dioxide baths "in" Medical hydrogy ", edited by
S. Licht, Baltimore, Md. Waverly, 1963, pp311-320).

Further, recently, a tablet prepared by preparing a carbonate and an organic acid is commercially available. Such tablets are easy to handle during storage and dissolution, are efficient, convenient and inexpensive.

[Problems to be solved by the invention]

However, the conventional carbon dioxide hot water generation method, in particular, the method of dissolving carbon dioxide gas in warm water with an inexpensive device, has a low carbon dioxide gas dissolution rate and cannot sufficiently increase the concentration of carbon dioxide gas dissolved in warm water. There was a flaw.

For example, if the concentration of carbon dioxide gas dissolved in warm water is set to 300 ppm or more using tablets, a large number of tablets must be charged.

Further, in the case of directly blowing carbon dioxide gas into the bathtub using a conduit, according to the experiments by the inventors of the present invention, when carbon dioxide gas is dissolved in hot water of 40 ° C at a concentration of 300 ppm, The dissolution rate (rate absorbed by warm water) was about 10%. When the contact area between carbon dioxide gas and water is widened by using air stones or sintered metal pipes, etc., when carbon dioxide gas is dissolved in hot water at 40 ° C at a concentration of 300 ppm, The dissolution rate increases rapidly to about 50%. However, it is difficult to obtain a dissolution rate higher than this.

It is an object of the present invention to provide a method and a device for producing carbonated hot water which produces a high concentration carbonated hot water efficiently and continuously with a simple structure.

[Means for solving problems]

The first invention of the present invention is a method for producing carbonated hot water, which is characterized in that a static mixer is arranged in the hot water supply pipe, and carbon dioxide gas is dispersed in the hot water by this static mixer.

A second invention of the present invention is an apparatus for carrying out the above method,
In a carbonated hot water generating device provided in a hot water supply pipe and provided with hot water supply means for supplying hot water and a dispersing means for dispersing carbon dioxide gas in the hot water supplied from the hot water supply means, the dispersing means is a static mixer. It is characterized by including.

[Work]

The method and apparatus for producing hot carbonic acid water according to the present invention introduces hot water and carbon dioxide gas into a dispersing means that is a confined region having a small volume, and causes a turbulent flow action in the dispersing means.
This causes the warm water to absorb a large amount of carbon dioxide. Also,
Since a pressurized state is obtained by the hot water supply pump, a synergistic action with the turbulent flow action occurs. Therefore, it is not necessary to apply high pressure, and carbonated hot water of low concentration to high concentration can be easily obtained without using a complicated device.

INDUSTRIAL APPLICABILITY The method and apparatus for generating carbonated hot water according to the present invention can efficiently and continuously supply the carbonated hot water to a bath of the type that supplies hot water from the outside.

〔Example〕

FIG. 1 is a schematic diagram of a carbonated hot water producing apparatus according to an embodiment of the present invention.

The apparatus for generating carbonated hot water disperses the carbon dioxide gas supplied from the carbon dioxide gas source 2 in the hot water supply pump 1 for supplying the hot water, the carbon dioxide gas source 2 for supplying the carbon dioxide gas, and the hot water supplied from the hot water supply pump 1. The disperser 3 and the carbonated hot water supply pipe 4 for supplying the carbonated hot water obtained by the disperser 3 to the bath 5 are provided. A static mixer is used as the disperser 3, and the gas and the liquid are effectively contacted in the conduit. By using a static mixer, a drive system for stirring is not required, and the device becomes compact. Further, since the static mixer mechanically separates the fluid to disperse the carbon dioxide gas, a high pressure pump is unnecessary. Further, due to the structure of the static mixer, even when foreign matter is mixed in the fluid, it does not become clogged and can be used stably for a long time. For more information on static mixers, for example, The static mixer-basics and applications-is described in detail in Chapter 1 of the Nikkan Kogyo Shimbun (September 30, 1981, first edition, first edition).

Although the carbon dioxide gas is directly introduced into the disperser 3 in this embodiment, the carbon dioxide gas may be introduced through a pipe immediately before the disperser 3. By introducing carbon dioxide gas into the disperser 3 directly or immediately before the disperser 3, a turbulent flow can be generated when the hot water passes through the disperser 3, and the dissolution rate of the carbon dioxide gas can be increased.

Further, the dispersers 3 may be arranged in multiple stages, and it is possible to increase the absorption of carbon dioxide gas by changing the diameter inside the disperser 3. It is also possible to dispose a valve at the outlet of the carbonated hot water supply pipe 4 and throttle the valve to increase the pressure in the disperser 3 or the pipe to enhance the absorption of carbon dioxide gas. The influence of pressure in the system is as described in the widely known physicochemical formula as Henry's law.

The concentration of carbon dioxide in the bath 5 is derived from a chemical engineering formula, It is represented by. By transforming this formula, Is obtained. Where c ₁ ; carbon dioxide concentration in hot water at the inlet of the disperser 3 (pp
m), c ₂ ; Carbon dioxide concentration in hot water at the outlet of the disperser 3 (pp
m), c ^*; carbon dioxide concentration (ppm in hot water in equilibrium with carbon dioxide gas phase) upsilon _L; hot water flow rate _{^{(m 3 / hr) V S}} ; distributor 3 having an inner volume (m ³⁾ K _L; Mass transfer coefficient (m / hr) a on the liquid side of carbon dioxide-water system; carbon dioxide-water contact interface area (m ² / m ³ ), each of which is a value at a predetermined temperature.

Therefore, from the equation (2), in order to increase the concentration of carbon dioxide gas at the outlet of the disperser 3, pressurization is performed to increase the value of c ^* , or the disperser 3 having a high mixing / dispersing effect is selected.
Increase the value of K _L a.

The medicinal component can be added to the warm water stored in the bathtub 5. Examples of the medicinal component include ethyl aminobenzoate, dibucaine hydrochloride, tetracaine hydrochloride, procaine hydrochloride, lidocaine, methyl salicylate, guaiazulene, sodium guaiazulene sulfonate, aluminum chlorohydroxy allantoinate, bendazazuk, indomethacin, glycyrrhetinic acid, glycyrrhizinic acid. , Analgesic and anti-inflammatory agents such as bufluexamatsuku, sodium dextran sulfate, crotamiton, butyl flufenamic acid, allantoin, aloe powder, ictamol, dipotassium glycyrrhizinate, monoammonium glycyrrhizinate, β-glycyrrhetinic acid, glycyrrhetinyl stearate, stearyl glycyrrhetinate and hinokitiol; hydrocortisone; , Hydrocortisone acetate, hydrocortisone butyrate, fluocinolone aceto Nido, flumethasone pivalate, fluocinonide, fluorometholone, beclomethasone propionate, dexamethasone, dexamethasone sodium phosphate, dexamethasone acetate, fludroxycortide, betamethasone valerate, dipropionate betamethasone, triamcinolone acetonide, prednisolone, methylprednisolone acetate. Adrenocortical hormones such as methylprednisolone, diflucortron valerate, clobetasol propionate, amcinonide, halcinonide, prednisolone valerate acetate and hydrocortisone butyrate propionate hydrocortisone; estradiol, estrone, ethinyl estradiol, dieterstilbestol, hexestrol, etc. Hormonal agents; phenol, resorcin, salicylic acid, hexachlorophene, Mercuroclo , Thimerosal, acrinol, iodine, benzalkonium chloride, benzethonium chloride, penicillin V, benzapenicillin G, streptomycin, chloramphenicol, tetracycline, tetracycline hydrochloride, erythromycin, fradiomycin, fradiomycin sulfate, bacitracin hydrochloride, oxytetracycline hydrochloride, Kanamycin sulfate, kanamycin, chloromycetin, polymyxin B, nitrofurazone, potassium permanganate, boric acid, borax, benzoic acid, sodium benzoate, sodium salicylate, sorbic acid, potassium sorbate, dehydroacetic acid, sodium dehydroacetate, paraoxybenzoic acid Ethyl, Butyl paraoxybenzoate, Propyl paraoxybenzoate, Methyl paraoxybenzoate, Isopropylmethylphenyl Enol, cresol, chlorxylenol, thymol, parachlorphenol, sensitizer 101, sensitizer 201, chloramine T, thiantol, lysozyme chloride, chlorhexidine hydrochloride, chlorhexidine gluconate, trichlorocarbanilide, 3-trifluoromethyl-4 Disinfectants and bactericides such as 4'-dichlorocarbanilide and hexachlorophene; antihistamines such as isothibenzyl hydrochloride, diphenylimidazole, clemizole sulfate, diphenhydramine, lauryl sulfate diphenylhydramine, and chlorpheniramine maleate. Chrysarobin, undecylenic acid, zinc undecylenate,
Pentachlorphenol, phenylmercuric acetate, thimerosal, tricomycin, tolnaftate, phenyliodoundeinoate, clotrimazole, haloprozin, variotin, pyrrolenitrin, citukanin, nystatin, axalamide, ciclopirox olamine,
Antifungal agents such as miconazole nitrate, aconazole nitrate, and isoconazole nitrate; retinol, retinol acetate, retinol palmitate, dehydroretinol, ergocalciferol, dl
-A-tocopherol, acetic acid dl-a-tocopherol,
Succinate dl-a-tocopherol calcium, yupiquinone, phytonadione, menaquinone, menadione, thiamine hydrochloride, thiamine nitrate, thiamine phosphate, riboflavin, flavin mononucleotide, riboflavin butyrate ester, pyridoxine hydrochloride, 5'-pyridoxal phosphate, Dicabrylic acid pyridoxine, dipalmitic acid pyridoxine, tripalmitic acid pyridoxine, cyanocopalamin, hydroxycopalamin, deoxyadenosylcopalamin, methylcopalamin, nicotinic acid, nicotinic acid amide, benzyl nicotinate, calcium pantothenate, sodium pantothenate , Pantodenyl alcohol, dicarboethoxy pantothenic acid nityl ester / propylene glycol liquid, acetyl pantothenyl ethyl ether, pantotheni Vitamin agents such as ethyl ether, biotin, folic acid, choline, inositol, ascorbic acid, sodium ascorbate, ascorbyl stearate, ascorbyl palmitate, ascorbyl dipalmitate; zinc oxide, calamine, aluminum sulfate, lead acetate, bismuth subnitrate, Bismuth subgallate, tannic acid, zirconium oxide chloride, allantoin chlorohydroxyaluminum, allantoin dihydroxyaluminum, aluminum hydroxychloride, zinc chloride, aluminum chloride, ferric chloride, calamine, aluminum chloride bromide, aluminum phenol sulfonic acid, Aluminum naphthalene sulfonic acid, dry potassium aluminum sulfate,
Astringents such as zinc pararafenol sulfonate; urocanic acid, 2-ethoxyethyl 4-methoxycinnamate, ethyl paraaminobenzoate, 2- (2-hydroxy-5-methylphenyl) benzotriazole, 2-hydroxy-4- UV absorbers such as methoxybenzophenone; sequestering agents such as disodium edetate, sodium citrate, sodium polyphosphate, sodium metaphosphate, gluconic acid; ictamol, moctal, camphor, thymol, diphenhydramine, chlor Antipruritic agents such as pheniramine, promethazine hydrochloride, N-ethyl-o-crotonotoluidine; cantaris, capsicum tincture, ictamol, turpentine oil, reddish foaming agents such as bismuth subgallate; purified sulfur, precipitated sulfur, salicylic acid, Emollients such as urea; Al chloride Antiperspirants and deodorants such as aluminum, aluminum sulfate, aluminum acetate, aluminum phenolsulfonate, sodium perborate, etc .; selenium disulfide, alkylisoquinolinium bromide, zinc pyrithione, biphenamine, thiantol, cantharisin tincture, Japanese citrus fruit Tincture, capsicum tincture, potassium bromate, sodium bromate, carpronium chloride,
Hair styling agents such as acetylcholine chloride, pilocarpine chloride, vitamin A oil and the like can be used, and in addition, prostaglandins and the like can be used.

Further, a skin external preparation may be mixed. As the skin external preparation, those usually used as a non-aqueous base, for example, talc, inorganic powder such as bentonite, fluid paraffin,
Vaseline, silicone oil, higher aliphatic alcohols, higher fatty acids, fatty acid esters, vegetable oil, lanolin and its derivatives, squalene, squalane, polyethylene and the like can be used.

In addition, various components commonly used as bath salts, such as sodium chloride, potassium chloride, ammonium chloride, sodium sulfate, aluminum sulfate, iron sulfate, sodium carbonate, sodium hydrogen carbonate, calcium carbonate, magnesium carbonate, sodium sesquicarbonate, Inorganic salts such as sulfur, sodium sulfide, potassium sulfide, sodium phosphate, sodium polyphosphate, sodium thiosulfate, etc .; organic acids such as citric acid, tartaric acid, malic acid, succinic acid, etc .; Touki, senkyu, chimpi, kobo, mint,
The cut product itself of medicinal plants such as chamomile, ginkgo, valerian, fennel, ginger, soup, spruce, dokkatsu, juniper, juniper, juniper, peony, saishin, or obtained by extraction or solvent extraction thereof Extract and brewed liquid,
The dried product of the extract may be mixed with warm water in the bath 5.

Also, as the fragrance component, for example, Hakka, eucalyptus, lemon, verbena, citronella, kayapte, salvia, thyme, clove, rosemary,
Philip, Basil, Jasmine, Chamomile, Neroli,
Essential oils such as basil, perilla, marjoram, laurel, juniper berries, nutmeg, ginja, onion, garlic, orange, bergamot, lavender, peppermint, camphor, cinnamon, mace, root carrot, artemisia, clary sage, rose; wormwood oil, Vegetable oils such as rosemary oil, eucalyptus oil, mill oil, peppermint oil, abssinth oil, sandalwood oil, costas oil, labdanum oil; acetic acid formate, ethyl formate, propyl formate, acetic acid esters (ethyl, propyl, butyl, heptyl, nonyl) , Menthyl, irimentyl, etc.), amyl nitrite, trimethylcyclohemosanol, allyl sulfide, nonyl alcohol, decyl alcohol, phenylethyl alcohol,
Methyl carbonate, ethyl carbonate, phenylacetic acid ester, buayacol, indole, cresol, thiophenol,
Fragrance substances such as P-chlorobenzene, P-methylquinoline, isoquinoline, pyridine, camphor, hydrogen sulfide, estragal, elemol, menthol, cineole, eugenol, citral, hydroxycitronellal, borneol, linalool, gellanol, rosinol, nerol May be mixed with warm water in the bathtub 5.

In addition, the usual fragrances and dyes can be added.

[Test example]

A test of dissolving carbon dioxide gas in warm water was conducted using the apparatus of the above-mentioned embodiment.

A static mixer (Type CSM-1-22, 12 internal elements) made by Noritake Company was used as the branch unit 3, and 40 ° C. hot water was pumped to this disperser 3 by the pump 1.
/ Min and simultaneously introduced at a rate of (1.5m ³ / hr), and the carbon dioxide gas was introduced at a rate of 12N / min (0.72m ³ / hr). As a result, carbon dioxide gas is dispersed and absorbed in warm water in the disperser 3,
High-concentration carbonated warm water was generated and supplied to the bath 5.

The concentration of carbon dioxide in warm water at the outlet of the disperser 3 is always about
It was 800 ppm, and the carbon dioxide gas dissolution rate at that time was about 85%. When this apparatus was continuously operated for 12 minutes, 300 carbonated hot water having a carbon dioxide gas concentration of 780 ppm was obtained. Further, the rate of carbon dioxide emission from the hot water surface of the bathtub 5 is slow,
The decrease in carbon dioxide gas from the carbonated hot water during the hot water supply to the bathtub 5 was slight.

As a comparative example, a diffuser plate made of sintered metal (average pore diameter 30 μm, diameter 40 mm, length 250 mm) equipped with a carbon dioxide gas inlet is placed on the bottom of the bath 5 containing 300 ° C. warm water at 300 ° C. Carbon dioxide was passed through the air plate at a rate of 15 N / min, and aerated in the bath 5 to disperse and dissolve carbon dioxide.
At this time, the carbon dioxide concentration and the dissolution rate in the warm water were 400 ppm and 41% after 10 minutes and 550 p after 20 minutes, respectively.
pm and 28%.

Details of the test results of these Examples and Comparative Examples are shown in Tables and FIGS. 2 and 3. FIG. 2 shows the change with time of the carbon dioxide concentration in the warm water, and FIG. 5 shows the relationship between the carbon dioxide concentration in the warm water in the bath 5 and the dissolution rate of the carbon dioxide at that time. As shown in these tables and drawings, the concentration of carbon dioxide gas in the warm water at the outlet of the disperser 3 is as high as several hundred ppm or more, and high-concentration carbonated warm water can be obtained inexpensively and continuously.

[Effects of the Invention] As described above, the method and apparatus for producing carbonated hot water of the present invention is a very simple and inexpensive method and apparatus configuration, which enables high-concentration carbonated hot water that has not been obtained conventionally to be produced inexpensively and continuously. Can be generated automatically. INDUSTRIAL APPLICABILITY The present invention can be used as a hot water source for an artificial carbonated spring, and can efficiently and continuously supply hot carbonated water in a bath of a type that supplies hot water from the outside.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a carbonated hot water producing apparatus according to an embodiment of the present invention. FIG. 2 is a diagram showing the change with time of the carbon dioxide concentration in warm water. FIG. 3 is a diagram showing the relationship between the carbon dioxide concentration in warm water and the dissolution rate of carbon dioxide at that time. 1 ... Hot water supply pump, 2 ... Carbon dioxide gas source, 3 ... Disperser,
4 ... Carbonated hot water supply pipe, 5 ... Bathtub.

Claims (2)

[Claims] 1. A method for producing carbonated hot water in which carbon dioxide gas is dissolved in hot water, wherein a static mixer is arranged in a hot water supply pipe and carbon dioxide gas is dispersed in the hot water by the static mixer. Method. 2. A carbonated hot water producing apparatus, comprising: hot water supply means provided in a hot water supply pipe for supplying hot water; and dispersing means for dispersing carbon dioxide gas in hot water supplied from the hot water supply means, An apparatus for generating carbonated hot water, wherein the dispersing means includes a static mixer.