JPH0756417B2 - Circulation sterilizer - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a circulating sterilizer suitable for use as a sterilizer for a circulating bath using a special solution.

[0002]

2. Description of the Related Art As a conventional circulating bath sterilizing device, a bath sterilizing device described in Japanese Utility Model Laid-Open No. 2-108794,
A bath water sterilizing and purifying device described in Japanese Patent Laid-Open No. 3-192 has been proposed. Both devices are for sterilizing and filtering water while circulating bath water.

On the other hand, the inventor of the present invention firstly prepared an aqueous solution containing a polysaccharide as a main component in order to activate skin cells (Patent No. 1).
1597430 and JP-A-3-240730). These aqueous solutions activate cells of the skin, nasal mucosa and the like without any fear of side effects, and exert a remarkable effect on various diseases such as alopecia and pigmentation, or stomatitis and hay fever. . Then, the present inventor, after sharp research, discovered that more effective effects can be obtained by using these aqueous solutions in a bath.

[0004]

However, the conventional sterilizing device sterilizes liquid when it passes between the electrode plates, and its sterilizing effect is limited. For example, while the untreated liquid in the bath water for 5 people is 1 × 10 ⁸ ,
The limit of the aqueous solution sterilized by the conventional sterilizer is up to 9 × 10 ⁵ .

Further, even if a high-viscosity aqueous solution containing a polysaccharide as a main component is sterilized by a conventional sterilizer, a satisfactory sterilizing effect cannot be obtained.

Therefore, the present invention was created in order to solve the above-mentioned problems, and even a highly viscous aqueous solution containing a polysaccharide as a main component can obtain sufficient sterilizing power and can be repeatedly used in a bath. It is an object of the present invention to provide a circulation sterilizer capable of performing the above.

[0007]

In order to achieve the above object, the present invention provides an aqueous solution P of a polysaccharide discharged from a bath 1.
Is a circulation sterilizer for a bath that sterilizes the aqueous solution P with the electrolytic sterilizer 8 and returns it to the bath 1 after being filtered from the hair collector 2 through the filter 5, and the electrolytic sterilizer 8 includes a plurality of This is because the electrode plates 8A are arranged orthogonally to the flowing water direction.

Further, the electrode plate 8A of the electrolytic sterilizer 8 has a mesh shape formed of a titanium alloy, and a current of at least 1 to 3 A flows as means for solving the problem.

[0009]

In other words, according to the present invention, the aqueous solution P of the polysaccharide discharged from the bath 1 is filtered from the hair collector 2 through the filter, and a plurality of electrode plates arranged orthogonally to the flowing water direction are provided. It is sterilized by the electrolytic sterilizer.

At this time, in the electrolytic sterilizer, at least 1 to 3 is provided on the mesh-like electrode plate formed of titanium alloy.
A current flows.

Then, oxygen and hydrogen are generated at the anode by electrolysis (current passing through the solution). At that time, the energy level of oxygen electrons is excited from the ground state to generate active oxygen. It is considered that the material and shape of the electrode plate at this time lowers the energy barrier of the active oxygen generation system and acts like a catalyst. The generated active oxygen is superoxide anion and singlet diatomic oxygen, which oxidizes the bacterial cell wall to generate radical molecules and kills the bacteria.

[0012]

Embodiments of the present invention will be described in detail below with reference to the drawings. Reference numeral 1 in the figure is a bathtub using an aqueous solution of a polysaccharide as bath water. The aqueous solution discharged from the bath 1 after use is circulated through the hair collector 2, the filter 3, and the electrolytic sterilization tank 4 for reuse.

Aqueous solution P in the circulation sterilizer of the illustrated example
Is a filter 5 from the hair collector 2 through the pump 3 and the flow meter 4.
Filtered. The filter 5 is made of stainless steel, and a rubber lining is applied to a portion of the tank where the aqueous solution comes into contact with the solution. At this time, the stainless material is planned to be SS-41 with rubber lining. After passing through the heat exchanger 6 and the chlorine sterilizer 7, the aqueous solution P filtered by the filter 5 is sterilized by the electrolytic sterilizer 8 and returned to the bath 1 through the filter 9 (FIG. 1).
reference).

In the electrolytic sterilizer 8, a plurality of electrode plates 8A are arranged orthogonally to the flowing water direction (see FIG. 2). The electrode plate 8A in the illustrated example uses four layers. The graphite 8 with holes is provided between the paired electrode plates 8A.
B is used as a spacer.

The electrode plate 8A is formed of a titanium alloy in a mesh shape (see FIG. 3). In the illustrated example, the electrode plate 8A is formed by combining the mesh plates of the two mesh plates with different mesh positions. Next, four 2 mm-thick electrode plates 8A were installed inside the column body 8C at intervals of 25 mm, and a voltage of 3.0 V was applied to each electrode plate 8A.
Table 1 shows the results of sterilization by applying a current of 2.2 A at.

[0016]

[Table 1] This data shows that the electrolytic sterilizer 8 has a voltage of 2.8 V / cell and a current of 2.
The following shows the data measured continuously under the conditions of 0 A and 1.3 l / min. As a result, the bacteria contained in the aqueous solution P are 2.1 × 10 ^{3 to} 6 × 6.
It was possible to drastically reduce it to 5 (pieces / ml).

[0017]

[Table 2] Table 2 shows the sterilized aqueous solution P excluding Nacl under the same conditions. In this case, by using 6 electrode plates 8A, the number of bacteria could be reduced to 2.3 × 10 ^{3 to} 66 (cells / ml).

The main factor of the sterilization performance of the present invention is determined by the value of the current passed through the treatment liquid.
A current of 20 to 80 W and a current of 1 to 3 A is considered desirable. However, the value may vary depending on the material and shape of the electrode plate 8A.

The polysaccharide aqueous solution contains dextran, glucose and sodium chloride. In addition to this, pullulan, sulfated starch, mannitol, dextrin,
Cyclodextrin, carrageenan, mutan, lentinan, calcium chloride, hydroxyethyl starch and the like may be added as appropriate.

[0020]

The present invention achieves the original object by being configured as described above. That is, the electrolytic sterilizer 8
By arranging the electrode plate 8A of (2) orthogonally to the flowing direction, sufficient sterilizing power was obtained even with a highly viscous aqueous solution containing a polysaccharide as a main component.

Further, the electrode plate 8A is made of a titanium alloy in a mesh shape so that a current of at least 1 to 3 A flows, so that the highest bactericidal effect can be obtained and an aqueous solution containing a polysaccharide as a main component P can be used repeatedly in the bath 1. As a result, it has become possible to sterilize the aqueous solution P to be sterilized by simply passing it through the electrolytic sterilizer 8. This is because when a voltage is applied to the aqueous solution P, active oxygen is generated at the anode, and the reaction probability of the active oxygen species generated with the bacteria in the aqueous solution P is increased by polarization, which directly or indirectly damages the cell wall of the bacterium. This is because the electron transfer system that controls the energy acquisition of life is damaged and the growth of bacteria is suppressed or killed to sterilize the solution.

As described above, according to the present invention, even a highly viscous aqueous solution containing a polysaccharide as a main component can obtain a sufficient sterilizing power and can be repeatedly used in a bath.
It has various industrially beneficial effects.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a usage example of the present apparatus.

FIG. 2 is a vertical sectional view showing an electrolytic sterilizer.

FIG. 3 is an enlarged plan view of an essential part showing an electrode plate of an electrolytic sterilizer.

[Explanation of symbols]

 P Aqueous solution 1 Bath 2 Hair collector 3 Pump 4 Flow meter 5 Filter 6 Heat exchanger 7 Chlorine sterilizer 8 Electrolytic sterilizer 8A Electrode plate 8B Graphite 8C Column body 9 Filter

Claims (2)

[Claims] 1. A circulating sterilizer for a bath, wherein an aqueous solution of a polysaccharide discharged from a bath is filtered from a hair collector through a filter, and then the aqueous solution is sterilized by an electrolytic sterilizer and returned to the bath. The electrolytic sterilizer is a circulating sterilizer characterized in that a plurality of electrode plates are arranged orthogonally to the flowing water direction. 2. The circulating sterilizer according to claim 1, wherein the electrode plate of the electrolytic sterilizer has a mesh shape made of a titanium alloy and a current of at least 1 to 3 A flows.