JP2001104439A - Carbonated spring making apparatus having cleaning and heat insulating functions - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carbonated spring making apparatus capable of simply making a highly cone. carbonated spring in a household bathtub and having cleaning and heat insulating functions. SOLUTION: This carbonated spring making apparatus is constituted by arranging a filter 4, a filter device 5, a sterilizing device 6, a heater 7 and a carbon dioxide dissolving device 8 to a circulating flow channel 2 to which a circulating pump 1 for forcibly circulating the hot water in a bathtub 3 outside the bathtub is arranged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for producing a carbonated spring which can easily obtain a physiologically effective carbonated spring and has a function of purifying and keeping heat.

[0002]

2. Description of the Related Art Recently, while keeping hot water in a bathtub at an appropriate temperature,
A household circulating hot water bath (24-hour bath), which removes waste and scales from the body through the filter and removes water from the body and makes it possible to recycle the hot water, has been popular since it can be bathed 24 hours a day. ing. In addition, bath salts and the like that can make you feel like a hot spring simply by dissolving in bath water are widely used.

[0003] However, household circulating warm water baths only have a purifying function, while bath additives cannot be used in household circulating warm water baths, and have both a hot spring function and a 24-hour bath function. There was nothing.

[0004] Carbonated springs have an excellent heat retaining effect,
It has been used in baths and other hot springs since ancient times. It is considered that the warming action of the carbonated spring is basically because the body environment is improved by the peripheral vasodilating action of the contained carbon dioxide gas.
In addition, the percutaneous invasion of carbon dioxide causes an increase and expansion of the capillary bed and improves blood circulation of the skin.

[0005] For this reason, it is said that it is effective in treating degenerative lesions and peripheral circulatory disorders. Since the carbonated spring has such an excellent effect, attempts have been made to artificially mix it. For example, hot water of carbon dioxide has been obtained by a method of sending carbon dioxide gas into the bathtub in the form of air bubbles, a chemical method of acting a carbonate and an acid, a method of pressurizing and sealing hot water and carbon dioxide gas in a tank for a certain period of time, and the like.

[0006] However, in the conventional method for producing carbonated hot water,
There is no equipment that can be easily used in a home bathtub, and in the chemical method, a large amount of chemicals must be introduced to achieve a carbon dioxide concentration of 300 ppm, and a high-concentration carbonated spring can be produced in a home bath. A device was desired.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to provide a carbonated spring manufacturing apparatus having a 24-hour bath function, which can easily produce a high-concentration carbonated spring in a home tub and has a purifying and heat retaining function. It is in.

[0008]

That is, the present invention relates to a carbonated spring manufacturing apparatus having a circulation pump for forcibly circulating hot water in a bathtub outside the bathtub and a circulation flow path therefor. A filter, a filter, a sterilizer, a heater, and a carbon dioxide dissolver are disposed in the flow path. The carbon dioxide dissolver has a three-layer structure in which both sides of a thin nonporous layer are sandwiched between porous layers. A carbonated spring manufacturing apparatus characterized by incorporating the composite hollow fiber membrane of (1).

As a carbon dioxide gas dissolver used in this carbonated spring manufacturing apparatus, a carbon dioxide gas dissolver is provided in a pipe having a hot water inlet, a carbonated spring outlet, and a carbon dioxide gas inlet.
A perforated tube having a blocked end is provided, and a hollow fiber membrane is arranged around the perforated tube in a coaxial direction with the perforated tube, and at least one end of the hollow fiber membrane is kept open to provide a carbon dioxide gas inlet. It is preferable that the inlet of the hot water communicates with the inside of the porous tube, and the outlet of the carbonated spring communicates with the outer surface of the hollow fiber membrane and the outer surface of the porous tube.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

FIG. 1 shows an example of an apparatus for producing a carbonated spring according to the present invention. The hot water in the bathtub is forcibly circulated in the circulation flow path 2 outside the bathtub by the circulation pump 1. That is, the hot water that has flowed out of the bathtub 3 is supplied to the filter 5 via the filter 4 and purified there, and the sterilizing device 6 sterilizes bacteria and the like in the hot water. After the temperature of the hot water flowing through the circulation channel is measured by the temperature sensor 7, the hot water is heated by the heater 8,
Thereafter, the mixture is guided to a carbon dioxide gas dissolver 9 where the carbon dioxide gas is dissolved to form a high-concentration carbon dioxide spring and returned to the bathtub 3. In addition,
The installation positions of the circulation pump, the carbon dioxide gas dissolver, and the like in the circulation channel are not limited by this example.

The filter 4 traps large dusts and the like mixed in the hot water and prevents the filter 5 from being immediately clogged or the hollow fiber membrane in the carbon dioxide gas dissolver from being contaminated. , It is preferable to be disposed at the most upstream of the circulation flow path 2. For the filter, metal wire mesh, sintered material, plastic non-woven fabric, or porous material can be used, and the finer the pore size, the better. However, if the pore size is too small, the resistance increases. It is preferably between μm.

The filter 5 has a function of removing wastes, scales and the like that have come out of the body and mixed with the hot water. For example, a filter using a filtering means such as ceramics, activated carbon, and barley stone can be used. The filter 5 together with the filter 4 also plays a role in preventing the hollow fiber membrane in the carbon dioxide gas dissolving apparatus from being contaminated and the ability to dissolve carbon dioxide gas from being reduced. Therefore, the filter is preferably disposed downstream of the filter and upstream of the carbon dioxide dissolver in the circulation channel.

The sterilizing device 6 has a function of maintaining water quality of the carbonated spring by disinfecting bacteria and the like that enter the bathtub and corroding the water, and has, for example, ozone generation or ultraviolet irradiation means. Things can be used.

The heater 8 is a heating source for heating hot water, and the heat source may be of any type, such as gas, oil, and electricity. Usually, the temperature of the hot water is detected by a temperature sensor installed in or upstream of the bathtub, and the calorific value is controlled so that the temperature in the bathtub is maintained at a predetermined temperature. Preferably, the heater is located upstream of the carbon dioxide dissolver.
If a heater is arranged downstream of the carbon dioxide gas dissolver, the dissolved carbon dioxide gas may precipitate in a gaseous state by heating, which is not preferable from the viewpoint of safety.

The carbon dioxide gas dissolver 9 has a built-in hollow fiber membrane,
It has the function of dissolving the carbon dioxide gas from the carbon dioxide gas cylinder 10 into warm water through the membrane surface of the hollow fiber membrane.
It is sectional drawing which shows an example of the carbon dioxide gas dissolver used for the carbonated spring manufacturing apparatus of this invention.

The hot water supplied from the hot water inlet 21 is first supplied to a pipe 22 constituting a carbon dioxide gas dissolver main body.
It is guided into the internal perforated tube 23 whose end is blocked. Around the perforated tube, hollow fiber membranes 24 are arranged coaxially with the perforated tube, both ends of which are fixed with a potting agent 25 while keeping an open state, and an outer perforated tube 29 covers the outer periphery thereof. The hollow portion of the hollow fiber membrane communicates with the carbon dioxide gas inlet 26 and the drain vent 27, and is fluid-tightly shut off from the flow path of hot water. The warm water flowing out of the hole of the internal porous tube radially flows across the surface of the hollow fiber membrane through which the carbon dioxide gas supplied from the carbon dioxide gas inlet 26 flows into the hollow portion, and contacts the hollow fiber membrane surface, The carbon dioxide gas is dissolved in the hot water, passes through the hole of the outer porous tube, and is taken out from the carbonated spring outlet 28.

In order to keep the concentration of carbon dioxide in the carbonated spring in the bathtub 3 constant, a pH sensor 11 is provided in the bathtub, and a carbon dioxide gas cylinder 10 is measured based on a measurement signal of the carbon dioxide concentration.
The supply amount of the carbon dioxide gas to the carbon dioxide gas dissolver 9 can be adjusted by controlling the opening degree of the on-off valve 12.

As the hollow fiber membrane used for the carbon dioxide gas dissolver 9, various kinds of hollow fiber membranes can be used as long as they have excellent gas permeability. A particularly preferred hollow fiber membrane is a composite hollow fiber membrane having a three-layer structure in which both sides of a thin non-porous layer are sandwiched between porous layers. For example, a three-layer composite hollow fiber membrane (MHF) manufactured by Mitsubishi Rayon Co., Ltd. Is mentioned. FIG. 3 is a schematic diagram showing an example of such a composite hollow fiber membrane, where 31 is a non-porous layer,
32 is a porous layer.

Here, the non-porous layer (film) in the form of a thin film refers to
Any membrane may be used as long as it is a membrane through which gas is permeated by a dissolution / diffusion mechanism into the membrane substrate, and the molecule is substantially free of gas-permeable pores such as Knudsen flow. By using a non-porous membrane having excellent gas permeability, gas can be supplied and dissolved without releasing gas as bubbles at an arbitrary pressure. Can be dissolved. Also,
There is no backflow of hot water to the gas supply side through the membrane.

The membrane material of the hollow fiber membrane includes silicone, polyolefin, polyester, polyamide, polyimide, polysulfone, cellulose,
Polyurethanes and the like are preferred.

The inner diameter of the hollow fiber membrane is 50 μm or more and 1000 μm.
m or less is desirable. If it is less than 50 μm, the flow resistance of the carbon dioxide gas flowing through the hollow fiber membrane becomes large, so that sufficient supply of the carbon dioxide gas cannot be performed. On the other hand, if it exceeds 1000 μm, the size of the dissolver becomes large, and it does not become compact.

[0023]

The present invention will be described below in detail with reference to examples.

Example 1 A carbonated spring was manufactured using the carbonated spring manufacturing apparatus shown in FIG. As the carbon dioxide dissolver 3, one having the structure shown in FIG. 2 was used. The built-in hollow fiber membrane is a composite hollow fiber membrane having a three-layer structure, an inner diameter of 200 μm, and an inner layer and an outer layer each having a thickness of 2 μm.
0 μm polyethylene porous membrane, the thickness of the intermediate layer is 0.5
It consisted of a μm segmented polyurethane non-porous membrane and had an effective total membrane area of 1.8 m ² . A non-woven fabric of 100 mesh is used for the filter 4 and a
One filled with 5 kg of barley stone and 1 kg of granular activated carbon was used, and a sterilizer 6 provided with an ultraviolet irradiation lamp was used.

The temperature of the hot water in the bath tub is set to 40 ° C., and hot water is sucked from the bath tub (about 200 liters of water) by the circulation pump 1.
Circulation was performed at a flow rate of 20 liter / min. At this time, the concentration of the carbonated spring was set to 500 ppm, and the carbon dioxide gas was supplied from the carbon dioxide gas cylinder 10 to the carbon dioxide gas dissolver. The hot water was circulated and circulated under the above conditions to measure the carbon dioxide concentration in the bathtub. As a result, the carbon dioxide spring had a concentration of 500 ppm in 10 minutes. Thereafter, four people took a bath in the bath tub for one day, and this bath was continued for 20 days, and the apparatus for producing a carbonated spring was continuously operated. However, there was no problem in water quality, carbon dioxide concentration and the like. The carbon dioxide concentration was measured by Toa Denpa Kogyo.
It measured with the ion meter IM40S carbon dioxide gas electrode CE-235.

[0026]

According to the apparatus for manufacturing a carbonated spring of the present invention, a carbonated spring with a high concentration can be obtained at home, and since it has a purifying and heat retaining function, it is possible to take a bath in a beautiful hot spring anytime for 24 hours. .

[Brief description of the drawings]

FIG. 1 is a schematic overall configuration diagram of a carbonated spring manufacturing apparatus according to the present invention.

FIG. 2 is a schematic sectional view of a carbon dioxide dissolver suitable for use in the present invention.

FIG. 3 is a schematic perspective sectional view showing the structure of a three-layer composite hollow fiber membrane suitable for use in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Circulation pump 2 Circulation flow path 3 Bath tub 4 Filter 5 Filter 6 Sterilizer 7 Temperature sensor 8 Heater 9 Carbon dioxide gas dissolver 10 Carbon dioxide gas cylinder 11 PH sensor 12 Opening / closing valve 21 Hot water inlet 22 Tube 23 Internal porous tube 24 Hollow fiber Film 25 Potting agent 26 Carbon dioxide gas inlet 27 Drain vent 28 Carbon dioxide spring outlet 29 External porous tube 31 Non-porous layer 32 Porous layer

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (Reference) A61L 2/10 A61L 2/10 B01D 35/027 B01D 69/08 69/08 69/12 69/12 C02F 1 / 32 C02F 1/32 1/50 520L 1/50 520 531R 531 560C 560 1/78 1/78 B01D 35/02 J

Claims (2)

[Claims] 1. A carbonated spring manufacturing apparatus comprising: a circulation pump for forcibly circulating hot water in a bathtub outside the bathtub; and a circulation passage therefor, wherein a filter, a filter, A sterilizer, a heater and a carbon dioxide dissolver are provided, and the carbon dioxide dissolver incorporates a composite hollow fiber membrane having a three-layer structure in which both sides of a thin nonporous layer are sandwiched between porous layers. A carbonated spring manufacturing device characterized by the following. 2. The apparatus according to claim 1, wherein the heater is disposed upstream of the carbon dioxide gas dissolver.