JPH09314136A - Water treatment apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water treatment apparatus which can sterilize water simply and supply drinking water without adding chemicals, etc. SOLUTION: A water treatment apparatus is equipped with a bactericidal lamp 3 which is formed by placing a cold cathodic bactericidal lamp 2 for emitting ultraviolet rays in an ultraviolet ray transmitting protective pipe 1, an inverter circuit 12 for igniting the lamp 2, and a dry cell which is the power source of the circuit 12, and the lamp 3 is immersed in water 5 in a container 4 to sterilize the water 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water treatment apparatus for sterilizing water using ultraviolet rays and supplying the sterilized water as drinking water.

[0002]

2. Description of the Related Art In recent years, interest in drinking water has increased,
The number of households that install purifiers in tap water is increasing, manufacturers are providing various purifiers, and the number of people who purchase mineral water is increasing, and beverage manufacturers are also producing and importing various mineral waters and consumers. To provide.

[0003]

However, the former purifying apparatus only purifies tap water from tap water, and the latter requires a safe period for serving as a beverage. There is no guarantee that the drinking water will be provided at any time. For example, if the water supply stops in the event of a disaster, the purification device cannot function properly. Mineral water could not be drunk if the means of purchase and supply were cut off.

[0004] Sterilization treatment with a chemical (chlorine) is also possible, but it is difficult for an amateur to judge the appropriate amount of the chemical relative to the amount of water. Was.

In order to solve the above-mentioned problems, it is an object of the present invention to provide a water treatment device which can simply sterilize water and provide it as drinking water without adding chemicals or the like.

[0006]

In order to solve the above-mentioned problems, a water treatment apparatus according to the present invention comprises a germicidal lamp containing a cold cathode germicidal lamp for irradiating ultraviolet rays in a protective pipe transmitting ultraviolet rays, and It is characterized by comprising an inverter circuit for turning on a cathode sterilization lamp and a dry battery as a power source of the inverter circuit, and sterilizing the water in the container by immersing the sterilization lamp in water contained in the container.

A solar cell or a vehicle battery may be used as a power source of the inverter circuit instead of the dry cell.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a water treatment device in which a sterilizing lamp 3 containing a cold cathode sterilizing lamp 2 in a protective pipe 1 is placed in a container 4 such as a PET bottle. It is soaked in 5 and the cold cathode sterilization lamp 2 is turned on to sterilize the water 5 in the container 4. The protection pipe 1 is a bottomed cylindrical tube made of quartz glass having excellent ultraviolet transmittance. A thin pipe 6 for a container 4 such as a plastic bottle with a transparent pipe.
It is formed to have a thickness that allows insertion from the outside (in the present invention, the outer diameter is set to 5 mm to 12 mm).

The cold cathode sterilizing lamp 2 is a lamp that discharges without preheating and emits ultraviolet rays having a wavelength of 250 to 260 nm, and has a thickness (in the present invention, an outer diameter of the protection pipe 1 that can be accommodated in the protective pipe 1). 3 mm to 8 mm), and the cold cathode sterilization lamp 2 is housed in the protection pipe 1. To both ends 7, 8 of the cold cathode sterilization lamp 2,
The lead wires 9 and 10 connected to each other are the protective pipes 1
Of the DC power source (in the present invention, six 1.5 V dry cells are connected in series to form a 9 V DC power source) supplied from the dry battery 11 as a high frequency power source. It is connected to the output terminal of the inverter circuit 12 for conversion.

The dry battery 11 and the inverter circuit 12 are housed in a power supply box 13, and the power supply box 1
3 is fixed to the upper end of the protection pipe 1 by an appropriate means such as an adhesive to be integrated, and a packing 18 is provided around the upper peripheral surface of the protection pipe 1 so that a germicidal lamp is provided from the spout of the container. It can be easily and stably attached to the container simply by putting.

By embedding the lower end of the cold cathode sterilization lamp 2 in the silicone resin 19 filled in the bottom of the protection pipe 1, the cold cathode sterilization lamp 2 is fixed in the protection pipe 1 and cold cathode sterilization by impact is carried out. It is possible to prevent the lamp 2 from being damaged. In addition, the lead wire 9 may function as a cushioning material by circling a part or all of the lead wire 9 around the cold cathode sterilization lamp 2 to prevent damage to the cold cathode sterilization lamp 2 ( See FIG. 2).

The sterilizing lamp 3 composed of the protective pipe 1 containing the cold cathode sterilizing lamp 2 and the power source box 13 may be separated and connected by a long lead wire 14 to form a separate type (see FIG. 2). ).

After the opening of the protective pipe 1 is sealed with silicone resin, it is protected by a protective tube 15 such as a Hishi tube or a rubber tube so that the opening is not damaged, and even if it is immersed in water. It is waterproof to prevent water from entering through the openings.

Further, the lighting time of the cold cathode sterilization lamp 2 can be set by a timer 16, and this timer 16 is operated from outside the battery box 12 by operating a button or a dial (not shown) at intervals of 3 minutes. It is provided so that the lighting time of up to 15 minutes can be selected.

Generally, when bacteria are irradiated with ultraviolet rays,
It is known that the number of surviving bacteria decreases almost exponentially with respect to irradiance and irradiation time. When a 15 W sterilizing lamp is irradiated 50 cm away, Shigella, Salmonella typhi, Escherichia coli, etc. Very weak bacteria can kill 99.9% of them in about 50 seconds to 1 minute, and weak bacteria such as staphylococci, tuberculosis bacteria, and Bacillus subtilis in about 1.5 to 2.5 minutes. 0.9% can be sterilized, and even strong bacteria such as brewer's yeast, sake yeast, and yeast belonging to the genus William belong to about 3.
It is known that 99.9% can be sterilized in 1 to 6.3 minutes, and the lighting time is selected by a timer for up to 15 minutes in 3 minute intervals, and by irradiating ultraviolet rays, it is possible to ensure Water can be sterilized.

A usage mode of the water treatment apparatus having the above-mentioned configuration will be described. Generally, it is not possible to confirm by visual inspection whether or not it is suitable for drinking. For example, if there is no drinking water to store in the event of a disaster such as when water is cut off and tap water cannot be used,
As shown in, the PET bottle 20 is horizontally cut from the approximate center, the cut upper part 20a is turned upside down, and the spout 21 is filled with a filter (tissue paper substitute) 22.
The water 5 obtained for the time being can be filtered. As far as the eyes can see, even if the water is filtered by the filter 22 to become clean water, the filter 22 cannot remove bacteria and the like.

Then, the water 5 filtered by the filter 22
1 or 2 is put in a container 4 such as a plastic bottle, and the sterilizing lamp 3 is inserted from the spout 6. The inserted germicidal lamp 3 can be fixed to the spout 6 with a packing 18. Next, when the timer 16 is set and the power is turned on, the cold cathode sterilization lamp 2 lights up for the time set by the timer 16. Since the cold cathode sterilization lamp 2 is lit in the water 5, the sterilization treatment can be performed more effectively than the treatment device that irradiates ultraviolet rays from outside the container 4.

Even if the sterilization lamp 3 is a double tube of the protection pipe 1 and the cold cathode sterilization lamp 2, since the cold cathode sterilization lamp 2 is thin, the protection pipe 1 can be made thin, which is common. A sterilizing lamp can be easily inserted into the container through a thin spout of a container such as a PET bottle which is easily available, and it is suitable for use in a disaster or the like.

Since the cold cathode sterilization lamp is lit in the container, the irradiated ultraviolet rays are unlikely to pass through the wall surface of a synthetic resin container such as a PET bottle, which may adversely affect the eyes during lighting. It can be used safely.

Further, since the cold cathode sterilizing lamp is used for sterilization and the like, the tube can be made thinner and the power consumption can be suppressed as compared with the hot cathode sterilizing lamp by the hot cathode arc discharge. In the case of a water treatment device using a power source as a power source, it can be used for 2 hours continuously and for a week by using a timer (5 times a day with one lighting time of 6 minutes).

The container is not limited to a plastic bottle or the like, and as shown in FIG. 4, when a wide-mouthed container 25 such as a pan or a bucket is used, the sterilizing lamp 3 is entirely filled with water 5. It is possible to use a separate type water treatment device which is soaked and the power supply box 13 is placed outside the container 25. In this case, since ultraviolet rays emitted from the upper surface of the container 25 may adversely affect the eyes, it is preferable to cover the upper surface of the container 25 with a protective sheet 26 such as a vinyl sheet.

In the above-mentioned water treatment device, the inverter circuit is operated by using the dry battery as the electric power. However, as shown in FIG. 5, the solar cell 27 and the rechargeable battery 28 are combined to convert the solar light a into It is also possible to convert the electric power into electric power at 27, charge the converted electric power into the battery 28, and operate the inverter circuit 12 with the charged battery 27.

Further, a battery for a vehicle may be used, or a generator may be used. However, when a generator is used, a voltage converter that converts the DC voltage into a predetermined DC voltage may be used.

The sterilizing lamp of the above-mentioned water treatment device is formed by protecting the cold cathode sterilizing lamp with a protective pipe, but the sterilizing lamp is stored in a metal or synthetic resin storage pipe (not shown) for storage. It is preferable.

[0025]

According to the present invention, water filtered by appropriate means can be sterilized without using chemicals and can be used as drinking water.

When a solar cell is used as a power source, water treatment can be performed anytime and anywhere, so that it is possible to provide a water treatment device which is extremely effective for securing drinking water in the event of a disaster. .

[Brief description of drawings]

FIG. 1 is a configuration diagram of a water treatment device according to the present invention.

FIG. 2 is a block diagram of a water treatment device of another example.

FIG. 3 is an explanatory diagram showing an example of a water filtration method.

FIG. 4 is a perspective view showing a usage mode of a water treatment device of another example.

FIG. 5 is a configuration diagram of a water treatment device of another example.

[Explanation of symbols]

 1 Protective Pipe 2 Cold Cathode Sterilization Lamp 3 Sterilization Lamp 4 Container 5 Water 11 Dry Battery 12 Inverter Circuit 27 Solar Cell

Claims (2)

[Claims] 1. A sterilizing lamp containing a cold cathode sterilizing lamp for irradiating ultraviolet rays in a protective pipe that transmits ultraviolet rays, an inverter circuit for lighting the cold cathode sterilizing lamp, and a dry battery as a power source of the inverter circuit. And a sterilizing water in a container by immersing the sterilizing lamp in water contained in the container. 2. The water treatment device according to claim 1, wherein a solar cell or a vehicle battery is used as a power source of the inverter circuit instead of the dry cell.