JPH02227182A - Water sterilizing apparatus - Google Patents

Abstract

PURPOSE:To easily sterilize water by providing a DC power supply apparatus providing a DC power supply apparatus holding wire like electrodes respectively composed of at least one anode and one cathode at a predetermined interval by a support fixing jig to fix the same at a place to be arranged and applying voltage to said wire like electrodes. CONSTITUTION:A wire like anode 7a and wire like cathodes 7b, 7c are arranged by a support fixing jig 6 so as to provide an interval therebetween and fixed to a container 2 or water flow passage by the support fixing jig 6. The electrode 7 consisting of the anode 7a and the cathodes 7b, 7c is connected to a DC power supply apparatus 8 through a polarity change-over apparatus 9 and voltage is applied to the electrode 7. A current flows to the electrode 7 in the water received in the container 2 and an electric field is generated between the anode and the cathodes to sterilize said water. By changing over polarity if necessary by the change-over apparatus 9, the impurity adhered to the cathodes 7b, 7c is removed. Since the electrode 7 has a wire like shape, said electrode 7 can be processed in matching relation to the shape of the container 2 and a sterilizing apparatus is easily prepared.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a water sterilizer for sterilizing bacteria growing in water.

Conventional technology In recent years, as social interest in health and hygiene has increased,
Contamination of swimming pool water by bacteria, fungi, etc. (hereinafter referred to as microorganisms) that propagate in water, or indoor contamination due to spraying humidifying water indoors, is becoming a problem that is affecting the human body. There was a growing demand for a simple, easy-to-maintain device that did not require any additional equipment, was not dangerous, and was easy to maintain.

Traditionally, it has been used as a means to sterilize microorganisms that grow in water.

B. Inject liquid hypochlorite soda or place tablets into water.

The ozone produced by the ozone generator is injected into the water.

C. As shown in Fig. 6, a device that has recently been announced is one in which two plate-shaped electric conductors 1 supported by a support fixture 6 are inserted into water 2 to be sterilized in an aquarium 4, and a DC power source is used. This device applies voltage from the device 3 through the lead wire 6 to sterilize bacteria in water.

The sterilization effect in the above configuration is that when a DC voltage of about 6 to 10 V is applied between the plate chamber Wi1 from the DC power supply bag @3, an electric field is applied, and the electrical conductivity decreases to 100 V.
．． If the water is about 300 μm, the water to be sterilized 2 has a diameter of 6
A current of about 0 to 100 mA flows and acts on the microorganisms in the water, a) oxidation of the microbial cells by oxygen during the nascent stage, changes in the composition of the microbial cells in the electric field, and an inhibitory effect on C1 bacterial cell proteins, which inhibits the original functions of the microorganisms. It was something that could be sterilized because it was harmful to humans.

Problems to be Solved by the Invention With the conventional sterilization method and configuration as described above, (a) Sodium hypochlorite is harmful in large quantities and requires careful handling; It is necessary to appoint a dedicated person, and it is essential to manage the purchasing of chemicals, such as replenishing them each time they are consumed.

In a water sterilization device using an ozone generator, it is necessary to treat harmful unreacted gases after being blown into the water for sterilization, resulting in an expensive and large-scale device.

C. In water sterilizers using plate-shaped electrodes, the electrodes have a plate-like shape, so they must be of a certain size to have a sterilizing effect, making it difficult to install them in narrow spaces such as in thin pipes or in small equipment. The places where it could be used were limited. In addition, the larger the size, the higher the material cost, and there is also concern about the risk of environmental pollution due to the elution of electrode metal, and if the voltage is set so that the metal does not elute, the cost becomes even higher.

Furthermore, during use, magnesium ions, calcium ions, etc. in water are attracted to the cathode side and adhere to the cathode wall, making it difficult to remove the adhered substances.

In view of the above problems, the first object of the present invention is to have flexibility that can be easily adapted to the shapes of various containers to be sterilized, low cost, simple operation, and safety. The second purpose is to facilitate the removal of impurities that accumulate during use and to simplify maintenance.

The third purpose is to improve safety for the human body by eliminating metal elution from the electrodes used.

Means for Solving the Problems In order to achieve the first object, the first means of the present invention is to provide wire-like electrodes each consisting of at least one anode and one cathode, and a pole spacing between the wire-like electrodes. The structure of the water sterilizer includes a support fixture that maintains the temperature and supports it at the installation location, and a DC power supply that applies voltage to the electrode.

A second means for achieving the second purpose is a wire-like electrode consisting of at least one anode and a cathode, and a support fixture that maintains the pole spacing between the wire-like electrodes and supports them at the installation location. and.

The water sterilizer is configured to include a DC power supply device that applies voltage to the electrode, and a polarity switching device that switches the polarity of the voltage output from the DC power supply device and applied to the wire-shaped electrode.

A third means for achieving the third object is to construct a water sterilizer in which the anode material is titanium plated with platinum and the cathode material is titanium or stainless steel in wire-shaped electrodes.

Effect: According to the configuration of the first means, if a water sterilizer is installed in the water to be sterilized and a DC voltage is applied to the wire-shaped electrodes from a DC power supply, a current flows and an electric field is generated between the electrodes to sterilize the water in the water. Microorganisms are sterilized due to (1) oxidation of microbial cells by oxygen during the nascent stage (rumor).Changes in the internal composition of microorganisms due to electric fields (3).Due to the inhibitory effects of microbial proteins, microorganisms are impaired and sterilized. Since it is wire-shaped, it can be bent to fit various shapes of containers to be sterilized.

With the configuration of the second means, when the water sterilizer is operated in the water to be sterilized and impurities such as magnesium ions and sium ions dissolved in the water are formed as steel on the negative FMllll electrode, the irradiance switching device By switching the polarity of the DC voltage applied to the wire-shaped electrode and operating for a certain period of time, the solution can be removed from the water again.

With the configuration of the third means, even if DC power is applied to the TGI to create an electric field between the electrodes and operation continues, stability is maintained because the anode side is made of platinum-plated titanium and the cathode is made of titanium or stainless steel. is high, and metals do not elute into the water.

Embodiment First, an embodiment according to the first means of the present invention will be described based on FIGS. 1 and 3.

Note that the same parts as those in the conventional example are given the same numbers and explanations are omitted.

In Fig. 1, the cathode side electrode 7b of the wire-shaped electrode 1 is made of one titanium wire with a diameter of 1 cm and a length of 1Qcnh, and two cathode side electrodes are arranged in y-parallel on both sides of this anode side chamber W, 7b. 7a
, 7c, and this electrode also has a diameter of 1cm and a length of 10m.
titanium wire is used.

The distance between the two outer cathode side chambers [7at7C and the central positive i side electrode gi7b is fixed at a constant distance (2 days), and each is held with a comb-shaped support fixture 6 that supports the poles so that they do not short-circuit at the installation location. are doing.

Note that the cathode side chambers FM7a, 7c of the wire-shaped electrode 7 are not limited to titanium wires, and similar effects can be obtained by using stainless steel wires having good corrosion resistance. A DC power supply device 8 is connected to the wire-shaped electrode 7 and outputs a low DC voltage that does not cause any harm to the human body even if the electrode comes into contact with the electrode. Regarding the shape of the wire-shaped electric FM7, the L-shaped one shown in Figure 1 is suitable for sterilizing the water filled inside by installing it in a bat-shaped container with a flat bottom as shown in Figure 3. Are suitable.

The spiral wire electrode 71 shown in FIG. 2 is suitable for sterilizing water in the spindle-shaped container 11.

This is shown as an example and can be applied to various shapes. Further, although not shown in FIG. 2, a support fixture is used that corresponds to the shape of the wire-like electrode.

The operation of the water sterilizer configured as above will be described below.

A wire-shaped electrode 7 is placed in the water 2 to be sterilized, and a DC voltage of 8 to 12 V is applied from a DC power supply 8.

The current flows from the anode side electrode 7b through the water to be sterilized 2 to the two cathode side chambers f17a and yc, and acts on the microorganisms in the water as explained in the conventional technology, a. .

b, Changes in intracellular composition in an electric field.

Inhibitory effect on C1 bacterial protein.

This causes damage to the living body of microorganisms, resulting in sterilization. Further, it is also possible to form a shape in which a plurality of negative part side electrodes are arranged around one anode side electrode rM on the circumference to efficiently sterilize water flowing in the piping.

Next, an embodiment according to the second means of the present invention will be described based on FIGS. 3 and 4.

Note that the same parts as in the conventional example and the embodiment according to the first means are given the same numbers, and explanations thereof will be omitted. In Figure 1,
When the water sterilizer is operated, impurities dissolved in the water, such as magnesium ions and calcium ions, adhere to the cathode side 11 [Ta, 7a]. In order to remove this impurity (hereinafter referred to as scale), the polarity switching device 9 is activated.

FIG. 4 is a circuit diagram showing connections between the inside of the polarity switching device 9 and other parts, and the DC current device 8 and the timer 11 in the polarity switching device 9 are connected to the AC power source via a switch. The DC output from the DC current device 8 is input to the A contact 9a and the B contact 9b in the polarity switching device 9, and
The wire-shaped electrodes 7 are connected to each other so that the A contact 9a is turned on and the B contact 9b is turned off according to the time setting of the timer 11, so that the polarity is changed and a DC voltage is applied.

The operation of the water sterilizer having the above configuration will be described below.

When removing Hesska μ components attached to the two cathode side electrodes 7a and 7c, set the timer 11 built in the polarity switching device 9 to about 2 to 6 minutes depending on the amount of scale attached.B Contact 9b is OFF, and A contact 9a is OFF.
The NL polarity is switched and a DC voltage is applied.

Therefore, the scale attached to the surface of the cathode side electrodes 7a, 7a dissolves into the water and can be easily removed without much effort.

After the set time has passed, the B contact 7b turns ON, and the A contact 7a turns ON.
returns to OFF and returns to normal water sterilization operation.

An example of the third means will be described.

In addition, the conventional example and the first example. Description of the same parts as in the embodiment according to the second means will be omitted.

The anode side chamber 1iyb of the wire-shaped electrode 7 is a titanium wire plated with platinum to a plating thickness of 1 μm. The cathode side electrodes 7a and 7c are similar titanium wires.

Next, the operation of the above configuration will be explained.

When a DC voltage is applied to the wire-shaped electrode 7 to start sterilizing bacteria in the water, the commonly used metal sterilization side electrode 7b
It elutes into water, albeit in a very small amount.

However, highly stable platinum electrodes can be sterilized without elution.

When using water for humidification or swimming pool water, which may be breathed into the human body or entered during the day, safety is maintained by using such platinum-plated electrodes. In terms of cost, by plating approximately 1 μm, a large increase in cost can be suppressed.

In addition, in the description of this embodiment, the cathode side electrode 7a is used.

7C is used as two electrodes, and the anode side electrode limb is made into one piece, but the anode side electrode 7b, which is platinum plated and costs more, is made into one piece.
The sterilization effect can be increased by arranging two or more cathode side electrodes around the cathode side. In addition, although not shown in the figure, it goes without saying that the wire-shaped electrodes 7 can be installed in a long parallel manner inside the piping to continuously sterilize the flowing water.

Effects of the Invention As is clear from the above description of the embodiments, according to the present invention, water is sterilized by applying voltage to a wire-shaped electrode from a DC power supply device having a low-voltage DC output. It is safe and can be easily sterilized by turning on the switch. In addition, since a wire-shaped electrode is used, it is easy to process and assemble according to the shape of the container that needs to be sterilized, and it can be manufactured at a low cost because it uses few materials and is easy to process.

Furthermore, maintenance is easy because the scale deposited on the cathode side electrode can be dissolved by the polarity switching device for the voltage applied to the electrode.

Furthermore, the anode side electrode is made of titanium plated with platinum, and the cathode side electrode is made of titanium or stainless steel, so there is no metal elution into the water, and it is sufficiently hygienic even in places where there are concerns about adverse effects on the human body depending on the environment in which it is used. can maintain safety.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a water sterilizer showing an embodiment of the first means of the present invention, Fig. 2 is an application state diagram of the water sterilizer with another electrode shape, and Fig. 3 is a diagram of the water sterilizer. FIG. 4 is a perspective view of the installation inside the container to be sterilized, FIG. 4 is a circuit diagram showing each part connected to the polarity switching device of a water sterilizer showing an embodiment of the second means, and FIG. 6 is a diagram of a conventional water sterilizer. FIG. 3 is a perspective view of the inside of the container to be sterilized. 6... Support fixture, 7... Wire-shaped electrode, 8... DC power supply device, 9... Polarity switching device. Name of agent: Patent attorney Shigetaka Awano and 1 other person 1st
Figure Figure 7 Zu11-La side i9Lzui't, a → Umi's 4 electric 1si 5
(Fig.

Claims (3)

[Claims] (1) Wire-shaped electrodes each consisting of at least one anode and a cathode, a support fixture that maintains the pole spacing between the wire-shaped electrodes and supports them at the installation location, and a voltage applied to the wire-shaped electrodes. A water sterilization device comprising a DC power supply device that applies . (2) The water sterilizer according to claim 1, further comprising a polarity switching device for switching the polarity of the voltage output from the DC power supply and applied to the wire-shaped electrode. (3) The water sterilizer according to claim 1 or 2, wherein in the wire-shaped electrode, the material of the anode is titanium plated with platinum, and the material of the cathode is titanium or stainless steel.