JPH01130785A - Ozone water sterilizer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an ozone water sterilizer. Specifically, it is used in the biotechnology, food industry, medical fields, etc. to sterilize bacteria required for research or hygiene. The present invention relates to an ozone water sterilization device for sterilizing ozone water.

2. Description of the Related Art Conventionally, when producing highly concentrated ozone water, highly concentrated ozone gas from an ozone generator was blown into the water of an aquarium.

Problems to be Solved by the Invention Water has the property of dissolving a large amount of ozone at lower temperatures. Therefore, there was a problem in that the manufacturing cost and operating cost of an ozone generator for generating highly concentrated ozone gas increased. The bactericidal effect is achieved by decomposing ozone in water into oxygen and creating activated oxygen atoms, and the higher the temperature, the more this decomposition into oxygen occurs. However, in the past, there was a problem that the ozone concentration in the wastewater was high and the decomposition treatment cost was high because the temperature was not adjusted.

The present invention solves these problems. This is what we are trying to do.

A cooling water tank having a cooler inside and dissolving ozone gas from an ozone generator to form ozone water;
a heating water tank that has a heater inside and heats ozonated water from the cooling water tank to make sterilized water; a heating water tank that cools the cooler of the cooling water tank on the cooling side and a heater of the heating water tank on the heat radiation side; It is equipped with a heat pump type refrigerator that heats the air.

According to the present invention, the cooling water tank for producing ozone water is equipped with a cooler, and the heating water tank for producing sterilizing water is equipped with a heater, so first, ozone gas is dissolved in the cooling water tank. The solubility can be increased by lowering the temperature of the water, and then the temperature of this ozonated water can be raised in a heated water bath to enhance the bactericidal effect. Furthermore, since the cooling of the cooler of the cooling water tank and the heating of the heater of the heating water tank are performed on the cooling side and the heat radiation side of the heat pump type refrigerator, respectively, the cold source and the heating source can be performed by one refrigerator. can.

Example The drawing shows an embodiment of the invention.

In the figure, 1 is a cooling water tank, 2 is a cooler installed inside the cooling water tank 1, 3 is a circulation pump that circulates water in the cooling water tank 1, 4 is an ejector, 5 is a heating water tank, and 6 is the heating water tank. A heater provided inside the water tank 5, 7 and 8 are ozone decomposers, 9 is a cooling side and the cooler 2'f: a heat pump type refrigerator that cools and also heats the heater 6 on the heat radiation side; 10 is an ozone generator, 11 is a water supply pipe, 12 is a drain pipe, and 13 is an exhaust pipe.

In the ozone water sterilizer configured as shown in the figure, water supplied to a cooling water tank 1 is cooled to a predetermined temperature by a cooler 2. The circulation pump 3 sucks in and circulates the water in the cooling water tank L. Two ejectors 4 are provided on the discharge side of the circulation pump 3, and first, the undissolved ozone mixture in the cooling water tank L is sucked in. ,moreover,
The ozone mixture from the ozone generator 10 is inhaled and dissolved.

Then, the ozonated water that has been cooled in the cooling water tank 1 and dissolved therein is sent to the heating water tank 5, where it is heated to a predetermined temperature to become sterilizing water and used for sterilization.

The ozone mixture in the gas phase in the cooling water tank 1 and the heating water tank 5 undergoes ozone decomposition treatment in the ozone decomposer 7, and is exhausted from the exhaust pipe 13. Further, the waste water from the heating water tank 5 is similarly treated by the ozone decomposer 8 and then drained from the drain pipe 12.

The refrigerator 9 functions as a heat pump. That is, the cooler 2 is cooled on the cooling side, and the heater 6 is heated on the heat radiation side.

To explain further, the ozone generator 10 has a low energy efficiency, which is currently said to be about 10%. Furthermore, it is technically difficult to generate high-concentration ozone, which is often around 1% by weight at most. The amount of ozone dissolved in water is also affected by pressure, temperature, and ozone concentration. Assuming that the pressure is constant, the amount of ozone dissolved in water is proportional to the ozone concentration in the gas, and increases as the water temperature is lowered, according to Henry's law.

For example, at an ozone concentration of 1 milligram in air per liter of gas volume, the equilibrium concentration in water is as shown in Table 1.

Table 1 As shown in Table 1, when the water temperature is 5°C, the water temperature is 30°C.
This means that twice as much ozone can be dissolved.

On the other hand, when the water temperature is raised, ozone is released automatically. The rate of self-decomposition increases, 03→o2+.

This reaction is promoted, but the O (oxygen atoms) generated during this process has a strong oxidizing and bactericidal effect.

That is, even in the low concentration ozone generator 10, high temperature ozonated water is produced by cooling the water in the cooling water tank 1, and by heating the ozonated water in the heating water tank 5 to raise the temperature, sterilizing water is produced. It is possible to increase the oxidizing and sterilizing power of

As described in detail, according to the present invention, the water in the cooling water tank can be lowered to the optimal temperature to increase the solubility of ozone gas, and the ozone water in the heating water tank can be brought to the optimal temperature. Since the sterilization effect can be enhanced by increasing the sterilization effect, the ozone generator does not need to be a high-performance, expensive one, and can be operated normally, which is extremely advantageous economically. Furthermore, since the cooling water tank and the heating water tank are respectively cooled and heated on the cooling side and the heat radiation side of the heat pump type refrigerator, it is possible to use a single refrigerator as a cold source and a heating source, which is economical.

Depending on the purpose of use, it is also possible to easily produce high-concentration ozonated water by cooling only, or to increase the sterilizing effect by heating only, by controlling the temperature.

[Brief explanation of the drawing]

The figure is an explanatory diagram showing one embodiment of the present invention. 1... Cooling water tank, 2... Cooler, 5... Heating water tank, 6... Heater, 9... Freezer,
10...Ozone generator.

Claims (1)

[Claims] 1. Ozone generator with internal cooler Dissolve ozone gas from It has a cooling water tank and a heater inside. By heating the ozonated water from the cooling water tank, A heated water tank is used for sterilization water, and a In addition to cooling the cooler of the cooling water tank. Heat the heater of the heating water tank on the heat radiation side. It is equipped with a heat pump type refrigerator. An ozone water sterilization device characterized by: