JPS6291289A - Apparatus for purifying drinking water - Google Patents

Abstract

PURPOSE:To facilitate the efficiency of deodorizing/sterilizing treatment, etc., by controlling the temp. of raw drinking water in an ozone reaction tower by a temp. controller and aerating said raw drinking water with ozonized gas from an air-diffusing device. CONSTITUTION:A water receiving valve 8 is opened to supply raw drinking water to an ozone reaction tower 7 and the temp. of the stored raw drinking water is detected by a temp. detector 11 and the detection signal is sent to a temp. controller 13. When the temp of raw drinking water is lower than preset temp. the temp. controller 13 operates a heating device 12 to heat the raw drinking water to the preset temp. After the temp. of the raw drinking water has reached the preset temp., aeration by ozonized gas and the removal of dissolved ozone by sterilized air are performed. By this method, treatment time can be shortened.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention is directed to a beverage purification system that purifies hygienic and delicious drinking water using ozonized gas and sterilized air in order to make the drinking water more healthy. Regarding water purification equipment.

[Prior Art] FIG. 2 shows a specific example of a conventionally used drinking water production apparatus. In Fig. 2, (1) is an air supply device;
(2) is an ozone generator, (3) is a valve attached to the line that supplies ozonized gas to the ozone reaction tower (described later), and (4) is a sterilizer that produces ozonized gas through an ozone decomposition device (described later). A valve attached to the line that supplies air to the ozone reaction tower, (5) is an ozone decomposition device,
(6) is a diffuser pipe for diffusing the supplied ozone or sterilized air through the ozone decomposition device; (7)
1 is the ozone reaction tower, (8) is the water receiving valve, (9) is the discharge valve attached to the discharge pipe to take out purified water, and the color is the exhaust ozone decomposition that decomposes the ozone discharged from the ozone reaction tower. It is a device.

Figure 3 shows that the water temperature is about 5℃, about 15℃, or 20-30℃.
3 is a graph showing the relationship between dissolved ozone concentration and its attenuation characteristic when water is aerated with ozonized gas for 11 hours at .degree. T2, T3, and T4 each have a water temperature of approximately 5℃.
, about 15°C, and after aerating ozonized gas at 20 to 30°C, aerating with sterile air shows the time taken until dissolved ozone is attenuated and ozone disappears.

In Figure 2, air used to produce ozonized gas is supplied from an air supply device (1) to an ozone generator (2), and the ozonized gas is passed through a diffuser pipe (6) by a valve (3). and supplied to the ozone reaction tower ('7).

The supplied ozonated gas is aerated to the raw drinking water stored in the ozone reaction tower (9) for T+ time shown in Figure 3, which is the time required for sterilization and deodorization. After the aeration of the ozonated gas is completed, the valve (3) is closed, the valve (4) is opened, and the ozonized gas generated from the ozone generator (2) becomes sterile air via the ozone decomposition device (5) containing an ozone decomposition catalyst, and dissolved ozone is removed. time T2, T3
Alternatively, it is supplied to the diffuser pipe (6) for 14 hours. Sterilization,
The deodorized drinking water is supplied as drinking water by the purified water outlet valve (9). The water receiving valve (8) is for injecting drinking raw water into the ozone reaction tower (7).

[Problems to be solved by the invention] In the conventional drinking water purification device, as shown in FIG.
When water is aerated with ozonized gas for one hour, the final concentration of dissolved ozone changes depending on the water temperature, so the time to reach the dissolved ozone concentration that produces sterilizing and deodorizing effects and the time to aerate sterile air must be adjusted. There was a problem.

The present invention has been made in order to solve the above problems, and aims to provide a drinking water purification device that can stabilize the deodorization and sterilization time and easily adjust the processing efficiency such as deodorization and sterilization. This is the purpose.

[Means for Solving the Problems] The present invention comprises an ozone generator, an aeration device, an ozone reaction tower, an ozone decomposition device, a temperature detector, a heating device, and a temperature controller, The present invention relates to a drinking water purification device in which the temperature is controlled by a temperature controller, and dissolved ozone in drinking water that has been sterilized and deodorized is removed by aeration of ozonized gas from an aeration device using sterilized air.

[Function] In the drinking water purification device of the present invention, the drinking raw water stored in the ozone reaction tower is heated to a constant temperature by the heating device, so that treatment efficiency such as deodorization and sterilization can be adjusted to a constant level. This is how it was done.

[Example] One embodiment of the present invention will be described based on FIG.

In FIG. 1, 01) is a temperature detector attached to the ozone reaction tower (7), (12) is a heating device attached to the ozone reaction tower (2), and 2 is a temperature regulator.

For drinking raw water, open the receiving valve (8), detect the temperature of the stored drinking raw water using the ozone reaction tower (supplied to the inside, and temperature sensor 01), and send the signal to temperature controller 0. . When the temperature of the raw drinking water is lower than a preset temperature, the temperature regulator (2) activates the heating device 02J and is heated until it reaches the set temperature. When the temperature of the raw drinking water reaches the set temperature, aeration with ozonized gas and removal of dissolved ozone with sterilized air are performed in the same manner as in the past.

Figure 3 shows the change in the amount of dissolved ozone when the temperature of the drinking raw water is set to 5°C, 15°C, or 20 to 30°C and the ozonized gas is aerated, and the dissolved ozone removal characteristics by sterilized outside air. As shown in FIG. 3, the amount of dissolved ozone after T1 hours is small when the water temperature is high, and the time taken to remove dissolved ozone by sterilized air is also shortened.

By the way, if the dissolved ozone concentration in the drinking raw water is above a certain value, sufficient deodorizing and sterilizing effects can be obtained, but in the present invention, the temperature of the drinking raw water is preferably in the range of 20 to 30°C.

In addition, although the above embodiment shows the case where drinking raw water is treated by raising the water temperature, if the water temperature is too high to perform sufficient ozone treatment, a cooling device may be used instead of the heating device. The water may be cooled to a water temperature at which ozone treatment is possible, or the water may be treated at any temperature by providing both a heating device and a cooling device. Further, in the embodiment, the ozone reaction tower (71
I stored drinking water inside and heated it until it reached the set temperature, but
As shown in FIG. 4, a heating device may be provided in the middle of the piping between the water receiving valve (8) and the ozone reaction tower.

[Effects of the Invention] As described above, when the apparatus of the present invention is used, the treatment effect is not affected by the temperature of drinking raw water, purified water of a constant quality can always be obtained, and the time required for sterilization and deodorization treatment can be reduced. This has the effect of being able to be made shorter.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing one embodiment of the drinking water purification device of the present invention, Fig. 2 is an explanatory diagram showing a conventional drinking water purification device, and Fig. 3 is an explanatory diagram showing changes in the amount of dissolved ozone due to differences in water temperature and sterilization. A graph showing attenuation characteristics due to air, FIG. 4 is an explanatory diagram showing another embodiment of the drinking water purification apparatus of the present invention. (Main symbols in the drawing) (1): Air supply device + 2) Niosin generator (3): Valve (6) Two trachea (niosin reaction tower (8): Receiving valve (9): Discharge valve 00 ): Exhaust ozone decomposition device 01): Temperature detector az: Warming device ■: Temperature regulator

Claims (1)

[Claims] (1) Consists of an ozone generator, an aeration device, an ozone reaction tower, a temperature detector, a heating device, and a temperature controller. A drinking water purification device configured to remove dissolved ozone from sterilized and deodorized drinking water by aeration from an air device.