JP2009061417A - Water sterilization device and humidification device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water sterilization device in which the propagation of microorganisms in water is suppressed by preventing deposition of a sterilizing component eluted in water on the surface of a submerged member or the like to prevent the lowering of the concentration of the sterilizing component in water and to provide a humidification device. <P>SOLUTION: The water sterilization device has a sterilizing component releasing part 10 provided in the water 4 in a water tank 1 to release the sterilizing component 11 and the submerged member 12 a part of which sinks in the water 4, wherein the same sterilizing component 11 as the sterilizing component 11 is applied on a part of or the whole of a portion of the water tank 1 and the submerged member 12 at least being in contact with water. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a water sterilization apparatus and a humidification apparatus that can suppress the growth of microorganisms in water.

2. Description of the Related Art Conventionally, a technique for forming a hydrophilic film by coating a surface of a molded product with a composition such as silica is known (see, for example, Patent Document 1).
Further, there has been proposed a humidifier equipped with a bacteriostatic device that elutes bactericidal components into the water in the water storage part of the aquarium and suppresses the growth of microorganisms in the water (see, for example, Patent Document 2).

Japanese Examined Patent Publication No. 63-67827 (page 2-4) JP 55-8545 A (2nd page, FIG. 1)

  In the inventions of Patent Documents 1 and 2, the bactericidal component eluted in water has a charge, and the surface of the submerged portion of the device member has a charge opposite in polarity to the bactericidal component. In this case, since the bactericidal component is adsorbed by the apparatus member and removed from the water, the concentration of the bactericidal component in the water is lowered, and the effect of suppressing the growth of microorganisms in the water is lost.

  The present invention has been made in order to solve the above-described problem, and by preventing the bactericidal component released in water from adhering to the surface of a submerged member or the like, the concentration of the bactericidal component in water is reduced. It is an object of the present invention to provide a water sterilization apparatus and a humidification apparatus that prevent the proliferation of microorganisms in water.

The water sterilization apparatus according to the present invention includes a bactericidal component discharge portion that is provided in water in a water tank and discharges a bactericidal component, and a submerged member that is partially submerged in the water. The same bactericidal component as that of the bactericidal component is applied in advance to all or a part of the member in contact with water.
Moreover, the humidifier which concerns on this invention is equipped with said water disinfection apparatus.

According to the water disinfecting apparatus according to the present invention, the bactericidal component (substance) released into the water can be prevented from adhering to the wetted part and the submerged member, so that the bactericidal component concentration in the water over a long period of time. Can be prevented, and the propagation of microorganisms in water can be suppressed.
Moreover, since the humidification apparatus which concerns on this invention was equipped with said water disinfection apparatus, clean humid air can be obtained.

[Embodiment 1]
FIG. 1 is an explanatory view of a water sterilization apparatus according to Embodiment 1 of the present invention, and FIG.
Water 4 is placed in a water tank 1 having a water inlet 2 and an outlet 3, and a bactericidal component discharge unit 10 that discharges (elutes) bactericidal components into the water is provided in the water 4. ing. A member 12 is partially submerged in the water 4 (hereinafter referred to as a submerged member). In the following description, the portion of the aquarium 1 that contacts the water 4 (the inlet 2, the outlet 3, the bottom, a part of the peripheral wall, etc., which is indicated by a thick line in the figure) is referred to as a water-contacting portion 5.

  And the same bactericidal component as the bactericidal component discharge | released from the bactericidal component discharge | release part 10 is apply | coated beforehand to the inner wall surface of the water-contacting part 5, and the part which touches at least the water 4 of the submerged member 12. Here, as the bactericidal component, for example, quaternary ammonium salts, silver ions, guanidines and the like are used.

In the present embodiment configured as described above, as shown in FIG. 2, the bactericidal component 11 is released from the bactericidal component discharge portion 10 into the water. Since the same bactericidal component 11 is applied, the bactericidal component 11 released from the bactericidal component releasing portion 10 is less likely to adhere to the water contact portion 5 and the submerged member 12.
Thereby, since it can suppress that the bactericidal component 11 is removed from water, the density | concentration of the bactericidal component 11 in water falls from the density | concentration based on the density | concentration assumed at the design stage, and a consumption rate. Can be prevented.

In the above description, the case where the bactericidal component 11 is applied to at least the portion of the water tank 1 that contacts the water 5 and the submerged member 12 is shown. Alternatively, the bactericidal component 11 may be applied only to the submerged member 11.
According to this Embodiment, since the water 4 in the water tank 1 has bactericidal properties over a long period of time, it is possible to suppress the propagation of microorganisms in the water.

[Embodiment 2]
FIG. 3 is an explanatory diagram of a water sterilizing apparatus in which a part of the second embodiment of the present invention is omitted, and FIG. 4 is an explanatory diagram of its operation. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
The configuration of the present embodiment is almost the same as that of the first embodiment, but a coating component 13 different from the bactericidal component 11 of the first embodiment is applied in advance to the surface of the submerged member 12. .

That is, as shown in FIG. 4, when, for example, a positively charged substance is used for the bactericidal component 11 emitted from the bactericidal component discharge portion 10, the coating component 13 also has a positive charge. Is using a charged substance.
By comprising in this way, it can prevent that the bactericidal component 11 adheres to the submerged member 12 by electrostatic repulsion. In addition, although the case where the application component 13 was apply | coated to the submerged member 12 was shown in the said description, even if the application component 13 is apply | coated also to all or one part of the water-contact part 5 (refer FIG. 1) as needed. Good.

  In the above description, a case in which a positively charged substance is used for the bactericidal component 11 and the coating component 13 has been shown, but a negatively charged substance may be used for both. In this case as well, an electrostatic repulsion effect is similarly generated, so that the bactericidal component 11 can be prevented from adhering to the submerged member 12 or the like.

Here, as the coating component 13, an organic ion such as a metal cation such as sodium ion, calcium ion, or silver ion, a quaternary ammonium salt, or guanidine is used as a positively charged substance. In addition, organic ions such as iodine ion, chloride ion, sulfate ion, phosphate ion, fatty acid, and methacrylic acid can be used as a substance that is negatively charged. These substances may be any substances as long as they generate an electrostatic repulsion with the bactericidal component 11 released from the bactericidal component discharge portion 10, but themselves have bactericidal properties. It is desirable to have a substance.
According to the present embodiment, substantially the same effect as in the first embodiment can be obtained.

[Embodiment 3]
FIG. 5 is an explanatory diagram of a main part of a water sterilization apparatus according to Embodiment 3 of the present invention.
The submerged member 12 in the present embodiment contains a substance 14 having an isoelectric point of pH 7 or higher, and this substance 14 has a property of being positively charged in neutral water. For this reason, unlike the coating component 13 of Embodiment 2, there is no possibility that the coating film is physically peeled off, and the positively charged bactericidal component 11 is prevented from adhering to the submerged member 12. be able to. If necessary, the substance 14 may be included in the wetted part 5 (see FIG. 1), or the substance 14 may be formed on the surface of the wetted part 5 and the submerged member 12 in whole or in part. May be applied.

Here, examples of the substance 14 having an isoelectric point of pH 7 or higher include oxides such as magnesia, calcium oxide, cobalt hydroxide, nickel hydroxide, zirconia, zinc oxide, iron oxide, and alumina. Further, it may be a composite oxide such as mullite or an oxide containing two or more metal ions such as alumina treated with Na.
According to the present embodiment, substantially the same effect as in the first embodiment can be obtained.

[Embodiment 4]
FIG. 6 is an explanatory diagram of a main part of a water sterilization apparatus according to Embodiment 4 of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
In the present embodiment, a porous material (carrier) 15 that holds a positively or negatively charged component 16 is provided on the surface or inside of the submerged member 12. If necessary, the water contact portion 5 (see FIG. 1) may also include the porous material 15 described above, or all or part of the surface of the water contact portion 5 and the submerged member 12 may be The porous material 15 may be applied.

Here, the porous material 15 may be used regardless of the kind of crystal, amorphous, one-dimensional to three-dimensional pores, layered structure, etc., such as mesoporous silica, silica gel, zeolite, sepiolite, hydrotalcite. it can.
In this case, since the porous material 15 has a function of holding the charging component 16, it is necessary to select a material whose pore size is larger than the charging component 16. For example, a high molecular weight ionic species is selected as the charging component. When used as 16, porous material 15 having a large pore size such as silica gel or mesoporous silica may be used.

  In the present embodiment configured as described above, when the molecular weight of the charging component 16 is small and the water solubility is high, the charging component 16 is prevented from leaching into water and the disinfecting component 11 in water is prevented from disappearing. be able to. Further, if an organic material having low heat resistance is used for the charging component 16, it is possible to prevent the molecular structure of the charging component 16 from being damaged when the charging component 16 is internally added to the thermoplastic submerged member 12.

Further, if a porous material 15 containing a charged component 16 having the same polarity as the bactericidal component 11 discharged from the bactericidal component discharge portion 10 is used, the bactericidal component 11 adheres to the submerged member 12 due to electrostatic reaction. Therefore, the fall of the density | concentration of the bactericidal component 11 in water can be suppressed.
As described above, according to the present embodiment, substantially the same effect as that of the first embodiment can be obtained.

[Embodiment 5]
FIG. 7 is an explanatory diagram of a water disinfecting apparatus according to Embodiment 5 of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.
The water sterilization apparatus according to the present embodiment replaces the submerged member 12 of the first to fourth embodiments with a rotating body 17 in which a bactericidal component discharge part 10 is partially provided in the water tank 1. It was installed in a nearly half-sunk state. Reference numeral 18 denotes a drive mechanism for rotating the rotating body 17 in a continuous, intermittent or forward / reverse direction (the case where the drive mechanism is provided in the water tank 1 is shown in FIG. May be) The rotating body 17 is coated with the same substance as the bactericidal component 11 discharged from the bactericidal component discharge portion 10 or a substance charged with the same polarity as the bactericidal component 11.

In the present embodiment, the rotator 17 is rotated to move (immerse) the bactericidal component discharge unit 10 in water, thereby releasing the bactericidal component 11 in water, and the rotator 17 is rotated when unnecessary. By moving the disinfecting component release part 10 into the air, it is possible to prevent the disinfecting component 11 from being excessively eluted and consumed.
Moreover, the density | concentration of the bactericidal component 11 in water can be controlled by increasing / decreasing the rotational speed of the rotary body 17 or rotating the rotary body 17 in the forward / reverse direction.
Furthermore, it can suppress that the bactericidal component 11 discharged | emitted from the bactericidal component discharge | release part 10 adheres to the rotary body 17 by an electrostatic repulsion effect | action.

  In the present embodiment, air can be humidified if the water attached to the surface of the rotator 17 is vaporized by blowing with a blower (not shown) in the vicinity of the rotator 17. By releasing to the outside, it can be used as a humidifier.

[Embodiment 6]
FIG. 8 is an explanatory diagram of a humidifying device according to Embodiment 6 of the present invention. In addition, the same code | symbol is attached | subjected to the part of the same or same function as Embodiment 1, and description is abbreviate | omitted.
The water 4 of the water tank 1 is provided with a bactericidal component discharge part 10 and a part of the water tank 1 is immersed in the water 4 and is continuously or intermittently driven by a drive mechanism (not shown). A vaporizing and humidifying element 19 that is rotationally driven in the forward and reverse directions is installed. In addition, 6 is provided in one side of the upper part of the water tank 1, and the inflow port into which the wind from a fan (not shown) flows in, 7 is provided in the other side, and is a discharge port which discharges humidified air. is there.

  The vaporizing humidifying element 19 is not particularly limited as long as it is a water-resistant material as a base material, for example, a metal plate such as an aluminum plate, a ceramic plate firmly bound so as not to be easily decomposed in water, Paper, non-woven fabric, a plastic plate or the like processed so as to be easily softened and not deformed in water is used. And the vaporization humidification element 19 can be made into the element excellent in the space efficiency in the case of rotating by making it disk shape or a hollow disk shape.

By laminating the disk-shaped or hollow disk-shaped elements as described above, the contact area between water and air can be increased, and a predetermined humidification amount can be obtained.
In this case, if the interval between the stacked plates is wide, the space efficiency is poor, and if it is narrow, water may be cross-linked by surface tension in the space between the plates. For this reason, it is desirable that the surface of the plate of the element is processed to be hydrophilic, and the interval between the plates is preferably about 1 to 4 mm, and the bactericidal component 11 eluted from the bactericidal component discharge portion 10 on the surface of the element. It is desirable to apply a material having a charge of the same polarity.

  In order to impart hydrophilicity to the surface of the element, for example, fine irregularities may be provided on the surface. Further, in order to have the same polarity as the bactericidal component 11 eluted from the bactericidal component releasing portion 10 on the surface of the element, on the surface of the element, for example, an oxide such as silica or alumina having a surface hydroxyl group, It is desirable to apply an ionic polyacrylic acid resin or the like.

According to the humidifier according to the present embodiment, the vaporizing / humidifying element 19 is rotationally driven in the same direction or in the forward / reverse direction (reciprocating rotation) by the drive mechanism, and holds water on the surface of the portion pulled up from the water. Therefore, this water evaporates by blowing air from the inflow port 6, and the air is humidified and discharged from the discharge port 7 to humidify the room and the like.
Moreover, the germicidal component 11 eluted from the germicidal component discharge part 11 provided in water can suppress the proliferation of microorganisms in the water 4.

  Further, by applying a substance having the same polarity as that of the bactericidal component 11 eluted from the bactericidal component releasing part 10 to the surface of the vaporizing humidifying element 19 and, if necessary, the wetted part, the bactericidal property in water. Since it can suppress over a long term that the component 11 adheres to these, the fall of the density | concentration of the bactericidal component 11 in the water 4 can be prevented.

As mentioned above, although the water disinfection apparatus and the humidification apparatus which concern on this invention were demonstrated, the water disinfection apparatus which concerns on Embodiment 1-4 can be implemented also in a humidification apparatus.
In addition, the present invention can also be applied to a drain pan of an air conditioner, a drain pan of a hand dryer, a drain pan of a dehumidifier, or the like in which water is stored and there is a risk of malfunction due to the propagation of microorganisms.
Furthermore, the present invention can be applied to the maintenance of sanitary properties of fish tanks and the like and the maintenance of sanitary properties of soil containing water.

It is explanatory drawing of the water disinfection apparatus which concerns on Embodiment 1 of this invention. FIG. 2 is an operation explanatory diagram of FIG. 1. It is explanatory drawing which abbreviate | omitted a part of water disinfection apparatus which concerns on Embodiment 2 of this invention. FIG. 4 is an operation explanatory diagram of FIG. 3. It is explanatory drawing of the principal part of the water disinfection apparatus which concerns on Embodiment 3 of this invention. It is explanatory drawing of the principal part of the water disinfection apparatus which concerns on Embodiment 4 of this invention. It is explanatory drawing of the water disinfection apparatus which concerns on Embodiment 5 of this invention. It is explanatory drawing of the humidification apparatus which concerns on Embodiment 6 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Water tank, 4 Water, 5 Water contact part, 10 Bactericidal component discharge | release part, 11 Bactericidal component, 12 Submerged member, 13 Application component, 14 Substance whose isoelectric point is pH7 or more, 15 Porous substance (carrier | carrier), 16 Charging component, 17 rotating body, 19 vaporizing and humidifying element.

Claims (11)

A bactericidal component releasing portion that is provided in the water in the aquarium and releases the bactericidal component, and a submerged member that is partially submerged in the water;
A water disinfection apparatus, wherein the same bactericidal component as the bactericidal component is applied in advance to all or a part of the water tank and the submerged member that are in contact with water. A bactericidal component releasing portion that is provided in water in the water tank and releases a bactericidal component that is positively or negatively charged, and a submerged member that is partially submerged in the water,
A water sterilization apparatus, wherein a substance charged with the same polarity as the bactericidal component is applied in advance to all or a part of at least a part of the water tank and the submerged member that are in contact with water. A bactericidal component releasing portion that is provided in the water in the aquarium and releases the bactericidal component, and a submerged member that is partially submerged in the water;
All or a part of the water tank and the submerged member in contact with water contains a substance having a property of being positively charged in neutral water having an isoelectric point of pH 7 or higher, or at least water of the water tank and the submerged member A water disinfecting apparatus, wherein the substance is applied in advance to all or a part of a portion in contact with the water. A bactericidal component discharge part that discharges a positively or negatively charged bactericidal component that is provided in the water in the aquarium, and a submerged member that is partially submerged in the water,
All or part of the water tank and the submerged member in contact with water contains a porous substance containing a positively or negatively charged substance, or all or one part of the water tank and the submerged member in contact with water. A water disinfecting apparatus, wherein the porous material is preliminarily applied to the part. A rotating body disposed in the water tank and partially rotating in the water to rotate or reciprocate; and a bactericidal component discharge portion that is provided in the rotating body and discharges the bactericidal component in the water. ,
A water sterilization apparatus, wherein the same substance as the sterilizing component or a substance charged with the same polarity as the sterilizing component is applied in advance to all or part of the water tank and the rotating body.   A humidifier comprising the water sterilizer according to any one of claims 1 to 5. Having a bactericidal component releasing part that is provided in water in a water tank and releases a bactericidal component, and a vaporizing humidifying element that partly immerses and rotates or reciprocates in the water;
A humidifying device characterized in that when a part of the vaporizing / humidifying element is submerged in water, water is retained on the surface of the submerged part, and when the water retaining part is moved into the air, the water is vaporized.   The humidifier according to claim 7, wherein the bactericidal component is the bactericidal component or substance according to any one of claims 1 to 4.   The humidifying device according to claim 7, wherein the bactericidal component or substance according to any one of claims 1 to 4 is applied to a surface of the vaporizing humidifying element.   The humidifying device according to any one of claims 7 to 9, wherein the vaporizing humidifying element is a disc or a hollow disc.   The said vaporizing humidification element is formed by laminating a plurality of discs or hollow discs in parallel, and an interval between adjacent discs or hollow discs is set to 1 mm or more and 4 mm or less. The humidification apparatus in any one.

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