KR102336844B1 - Apparatus for producing sterilized water - Google Patents

Abstract

It relates to a sterilization and sterilization water generating device capable of generating sterilization and sterilization water using a non-power pump at a site where sterilization water is required by connecting to a normal water pipe, and relates to a supply member for supplying raw water and a first accommodating acid agent Through the accommodating member, the second accommodating member accommodating the sterilizing agent, the flow rate regulating member for regulating the flow rates of the acidic agent supplied from the first accommodating member and the sterilizing agent supplied from the second accommodating member, respectively, and the flow rate regulating member A dilution member for diluting the acidic agent and disinfectant by mixing the supplied acidic agent and sterilizing agent with the raw water supplied through the supply member, and a discharge pipe for discharging the sterilizing and disinfecting water diluted in the diluting member. Thus, it is possible to generate sterilization and sterilization water at the site where sterilization water is required.

Description

Sterilization and disinfection water generating device {APPARATUS FOR PRODUCING STERILIZED WATER}

The present invention relates to a device for generating sterilization and sterilization water by receiving raw water. In particular, it is connected to a normal water pipe to generate sterilization and sterilization water that can generate sterilization and sterilization water using a non-power pump in the field where sterilization water is required It's about the device.

In general, sodium hypochlorite is used in water purification plants, sewage treatment plants, cooling water boilers in chemical plants, desalination process water, cooling water treatment in power plants, drinking water treatment, plants and vegetables, meat processing, laundry and paper outside swimming pools, and as a household bleach. It is a chlorine-based disinfectant in the form of a colorless and transparent liquid with a strong chlorine odor.

For example, in a livestock barn, a large amount of manure, wastewater mixed with the excreta and wastewater during cleaning is generated, which not only gives off a bad odor, but also raises the risk that the breeding animals or livestock workers may be infected with harmful bacteria due to the inhabitation of harmful bacteria there is In addition, there is a risk of infection with harmful bacteria in the environment of public sanitation places such as restaurants, large food courts, and public toilets.

In order to prevent such infection, water is cleaned as part of maintaining a sanitary environment for livestock or public sanitation places, but in general, water is sprayed by simply connecting a hose to a faucet and pressing the outlet of the hose by hand. Cleaning or using a high-pressure water vacuum cleaner. However, such a water cleaning method cannot eradicate harmful bacteria inhabiting livestock or public sanitation places, and thus cannot prevent breeding animals, visitors and managers from being infected with harmful bacteria.

An example of a technique for solving this problem is disclosed in Documents 1 to 3, etc. below.

For example, in Patent Document 1 below, water to which sodium chloride is added and water to which hydrochloric acid is added are mixed, this is electrolyzed in a non-diaphragm electrolyzer, and the obtained electrolyzed water is diluted with water, and the residual chlorine concentration of the generated sterilizing water is 10 In order to produce sterilization water at ~200ppm and adjusting the pH value to 3-7, a diaphragm-free electrolyzer having no electrolytic diaphragm between the positive electrode and the negative electrode, connected to one side of the electrolyzer, and means for adding raw water and aqueous sodium chloride solution In the introduction pipe for supplying the sodium chloride aqueous solution supplied from the and hydrochloric acid aqueous solution addition means to the electrolyzer, the outlet pipe installed on the other side of the electrolyzer and taking out the electrolyzed water from the electrolyzer, the electrolyzed water discharged from the electrolyzer and the raw water introduction pipe Disclosed is an apparatus for producing sterilized water provided with dilution means for mixing raw water from a branched raw water conduit for dilution.

In addition, in Patent Document 2, a high-concentration saline supply tank for storing and supplying a high-concentration saline solution, a saline inlet pipe for transferring high-concentration saline from the high-concentration saline supply tank to the Ventry tree of the Bentry pipe below, and a saline inlet pipe for transporting high-concentration saline solution from the high-concentration saline supply tank; A ventry pipe from which brine flows out, a place where water and high-concentration saline solution are located, and a heterogeneous liquid mixing device composed of a ventry bush to which the saline inlet pipe is connected, and a reaction tank body for electrolyzing brine to generate sterilized water , Disclosed is a disinfectant water generating device comprising a reaction tank composed of an electrolyzer body to which a plurality of electrodes are coupled and an electrolytic device serving as a DC power supply device for supplying DC power from a power supply device.

On the other hand, in Patent Document 3 below, a water tank having a plurality of moving wheels, an inlet and an outlet, to which water and salt are supplied, is supported at the lower end of the water tank and is connected to the water outlet of the water tank, and a plurality of anodes therein and cathodes are alternately installed, electrolytically reacting the brine supplied from the water tank to generate sterilizing water containing sodium hypochlorite, supported by the upper end of the water tank and connected to the electrolytic reaction tank, the electrolysis Disclosed is a device for generating and spraying sterilizing and sterilizing water for water cleaning, including a motor pump for pumping sterilizing water from a reaction tank, and a spray gun connected to the motor pump and spraying the sterilizing water to a sterilizing place.

Republic of Korea Patent Publication No. 10-0156000 (published Oct. 15, 1998) Republic of Korea Patent Publication No. 2019-0048153 (published on May 13, 2009) Republic of Korea Patent Publication No. 10-0730612 (registered on Jun. 14, 2007)

On the other hand, there are many cases where the compound is mixed and used in the field in order to properly utilize the compound for the purpose and use of the user. The compound should be distributed and stored under the given stable conditions and environment, and when used, it meets the purpose of use by adjusting the acidity and adding a curing agent or reactant.

For example, an epoxy or urethane-based compound is not a solvent evaporation one-component type, but a typical case of a two-component type that is mixed with a curing agent when used.

In addition, in the case of an oxidizing agent, it is essential to control the acidity immediately before use because it exerts oxidizing power under acidic conditions. Epoxy/urethane to which a curing agent has been added in advance is hardened and cannot be used, and the oxidizing agent has reduced stability in acid, making it difficult to exert its original oxidizing power. In particular, in acidic conditions, the oxidizing agent exhibits high oxidizing power, but its stability is rapidly reduced.

However, in the technology disclosed in Patent Document 1 as described above, since a DC power supply device, a constant current control device, an electrolyzer, etc. are provided, the scale of the sterilizing water production device is expanded and power is required, so the installation and maintenance of the device is complicated and sterilization There was a problem in that it was difficult to directly install it in a place where water is needed.

In addition, in the technique disclosed in Patent Document 2, raw water is mixed with high-concentration saline and sterilized water using sodium hypochlorite is generated through an electrolysis device. Therefore, there is a problem in that the installation and maintenance of the device is complicated and it is difficult to directly install the device in a place requiring sterilization water.

In addition, in the technology disclosed in Patent Document 3, sterilization and disinfection water is simply generated by electrolytically reacting water and brine supplied to a movable water tank. Therefore, as in Patent Documents 1 and 2, a power source is required, so installation and maintenance of the device are expensive and complicated, and there is a problem in that it is difficult to install directly in a place requiring sterilization water.

The object of the present invention has been made to solve the above problems, and since the oxidizing agent is unstable in disinfectants of oxidizing agents, sterilization and disinfection water can be generated in the field (places requiring sterilized water) to be suitable for special conditions (pH, etc.) It is to provide a device for generating sterilization and disinfection water.

Another object of the present invention is to provide an apparatus for generating sterilization and disinfection water using a powerless pump and capable of generating desired hypochlorous acid in a low concentration solution in the field for acidity control after dilution.

Another object of the present invention is to provide an apparatus for generating sterilization and disinfection water using a powerless pump and capable of generating chlorine dioxide on-site by reacting a high-concentration solution.

In order to achieve the above object, an apparatus for generating sterilization and disinfection water according to the present invention is an apparatus for generating sterilization and disinfection water by receiving raw water, and contains a supply member for supplying raw water, a first accommodation member for accommodating an acidic agent, and a sterilizing agent a second accommodating member, a flow rate regulating member for respectively controlling the flow rates of the acidic agent supplied from the first accommodating member and the sterilizing and disinfecting agent supplied from the second accommodating member, the acidic agent and sterilizing agent supplied through the flow rate regulating member and a dilution member for diluting the acidic agent and sterilizing agent by mixing the raw water supplied through the supply member, and a discharge pipe for discharging the sterilizing and disinfecting water diluted in the diluting member.

In addition, in the sterilizing and disinfecting water generating device according to the present invention, the flow rate control member includes a first flow rate control unit for controlling the flow rate of the acidic agent supplied from the first accommodating member and the flow rate of the sterilizing and disinfecting agent supplied from the second accommodating member a second flow rate control unit for controlling and a second diluent for diluting the disinfectant by mixing the supplied sterilizing agent and the acidic agent diluent supplied through the first diluting part.

In addition, in the sterilizing and disinfecting water generating apparatus according to the present invention, the acidic agent is citric acid or hydrochloric acid, and the sterilizing and disinfecting agent is sodium hypochlorite (NaClO).

In addition, in the sterilizing and disinfecting water generating apparatus according to the present invention, the apparatus further includes a reactor for reacting the acidic agent supplied from the first accommodating member and the sterilizing and disinfectant supplied from the second accommodating member at a high concentration, wherein the flow rate control member includes the It is characterized in that the flow rate supplied through the reactor is adjusted.

In addition, in the sterilizing and disinfecting water generating apparatus according to the present invention, the acidic agent is citric acid or hydrochloric acid, the disinfecting agent is sodium chlorite (NaClO ₂ ), and the sterilizing and disinfecting water is chlorine dioxide (ClO ₂ ) Characterized in that it contains do it with

In addition, in the sterilization and disinfection water generating device according to the present invention, the discharge pipe is equipped with a pH sensor for measuring acidity in the discharged sterilization and disinfection water and an ORP sensor for measuring an Oxidation-Reduction Potential (ORP) value. characterized in that

In addition, in the sterilization and disinfection water generating apparatus according to the present invention, the dilution member is characterized in that it comprises a pump operated by the raw water supplied from the supply member.

As described above, according to the device for generating sterilization and disinfection water according to the present invention, by providing a dilution member having a flow rate control member and a pump operated by raw water, it is possible to generate sterilization and disinfection water at a site where sterilization water is required. The effect that can be obtained is obtained.

In addition, according to the sterilization and disinfection water generating apparatus according to the present invention, by providing a first dilution part for diluting the acidic agent and a second dilution part for diluting the sterilizing agent, the desired hypochlorous acid is generated in a low concentration solution on site. The effect is that it can be done.

In addition, according to the sterilization and disinfection water generating device according to the present invention, by providing a reactor for reacting the acidic agent and the sterilizing agent at a high concentration, the high concentration solution reacts to generate chlorine dioxide on site.

1 is a block diagram showing the configuration of a first embodiment of an apparatus for generating sterilization and disinfection water according to the present invention;
2 is a graph showing a decrease in ^{ClO −} and an increase in HClO according to an increase in the hydrogen ion concentration of a basic NaClO solution;
3 is a block diagram showing the configuration of a second embodiment of the sterilizing and disinfecting water generating apparatus according to the present invention;
Figure 4 is chlorous acid ClO ₂ ^- A graph for the confirmation of _{chlorine dioxide ClO 2} produced by the addition of hydrogen ions to the solution.

The above and other objects and novel features of the present invention will become more apparent from the description of the present specification and accompanying drawings.

First, the concept of sterilizing and disinfecting water generated by the sterilizing and disinfecting water generating apparatus according to the present invention will be described.

Hydrogen peroxide is used as an oxidizing and reducing agent. When used as an oxidizing agent, hydrogen peroxide is reduced to [H ₂ O ₂ + 2H ⁺ + 2e ^- → 2H ₂ O] proceeds, and when used as a reducing agent, an oxidation reaction [H ₂ O ₂ → O ₂ + 2H ⁺ + 2e ^- ] proceeds. The high concentration of 35% hydrogen peroxide has an acidic pH of 4.6, but the low concentration (1-3%) hydrogen peroxide used as a disinfectant is close to neutral, so its oxidative power is reduced.

Sodium hypochlorite (NaClO) is manufactured by various chemical methods, but has the characteristic of being stabilized only in basic conditions with high pH. It is widely used in Korea, the United States, and Japan due to its inexpensive and excellent sterilization power, but its use is limited in Europe. When sodium hypochlorite is used as an oxidizing agent, a reduction reaction [ClO ^- + H ₂ O + 2e ^- → Cl ^- + 2OH ^- ] is accompanied under basic conditions. In alkaline conditions, ^{since there are many hydroxide ions (OH -} ), the product is not reduced and the original state (ClO ^- ) is maintained, so the pH of the commercialized product is 11-12. However, although the HClO state, which has hydrogen ions, exhibits higher oxidizing power than the ^{ClO - state, it is not commercially available because it is an unstable state [ClO -} + H ⁺ → HClO].

When hydrogen peroxide is used as an oxidizing agent, which is a disinfectant, H ₂ O ₂ itself must be prevented from being oxidized in order to increase its oxidizing power. Since the oxidation reaction of hydrogen peroxide [H ₂ O ₂ → O ₂ + 2H ⁺ + 2e ^- ] is a reaction in which hydrogen ions (H ⁺ ) are generated, when the product hydrogen ions are added, it is oxidized according to Le Chatelier’s law. The reaction is inhibited and the reduction reaction [H ₂ O ₂ + 2H ⁺ + 2e ^- → 2H ₂ O] only proceeds, so it is possible to increase oxidation power by inhibiting self-oxidation.

On the other hand, when hydrogen ions are added to sodium hypochlorite (NaClO), which is distributed only in basic conditions, hypochlorous acid (HClO) having a higher oxidizing power is generated, and it can be sterilized even with a small amount of use. However, the shelf life is shortened in acidic conditions, so it is necessary to adjust the acidic conditions in the field.

A device capable of dilution-mixing-acidity control is required at the site of use by adding an eco-friendly acidic agent as a method to prevent abuse by reducing the amount of commonly used oxidizing disinfectant.

In the present invention, groundwater or tap water is used as raw water, a pump is used in the process of injecting a sterilizing agent into the raw water, and the pump is a peristaltic pump, a diaphragm pump, and a piston pump using electric power. ) may be used, such as an injection pump, and a powerless pump using the hydraulic pressure of raw water may be used. In the embodiment of the present invention, a powerless pump was used.

Hereinafter, an embodiment of an apparatus for generating sterilization and disinfection water according to the present invention will be described with reference to the drawings.

In the sterilizing and disinfecting water generating device of the first embodiment, two powerless pumps are applied to adjust the acidity after dilution, and in the sterilizing and disinfecting water generating device of the second embodiment, one powerless pump is applied by adjusting the acidity before dilution. .

[ First embodiment ]

1 is a block diagram showing the configuration of a first embodiment of the sterilization and disinfection water generating apparatus according to the present invention.

As shown in FIG. 1 , the sterilization and disinfection water generating apparatus according to the first embodiment of the present invention is an apparatus for generating sterilizing and disinfecting water by receiving raw water, and contains a supply member 100 for supplying raw water and an acidic agent a first accommodating member 210 that contains the sterilizing agent; A flow control member for controlling the flow rate, a diluting member for diluting the acidic agent and sterilizing agent by mixing the acidic agent and sterilizing agent supplied through the flow rate control member and raw water supplied through the supply member 100; and a discharge pipe 500 for discharging the sterilizing and disinfecting water diluted in the diluting member, wherein the flow rate adjusting member and the diluting member are provided in the housing 10 .

As shown in FIG. 1, the supply member 100 is a raw water supply pipe 110 connected to a normal water supply pipe or hose to supply raw water, which is groundwater or constant water, supplied from the raw water supply pipe 110. The three-way valve 120 for separately supplying raw water, the working water supply pipe 130 for supplying the raw water supplied through the three-way valve 120 for the operation of the dilution member, and the three-way valve 120 It consists of a dilution water supply pipe 140 for supplying raw water for dilution of sterilization and disinfection water. The raw water supply pipe 110 , the working water supply pipe 130 , and the dilution water supply pipe 140 may be made of stainless steel, high-density Teflon, or an industrial polymer resin.

The first accommodating member 210 is made of a conventional chemical storage container, and citric acid or hydrochloric acid may be used as the acidic agent. The second accommodating member 220, like the first accommodating member, is made of a conventional chemical storage container, and sodium hypochlorite (NaClO) may be applied as the sterilizing agent.

As shown in FIG. 1 , the first accommodating member 210 and the second accommodating member 220 are connected to the flow control member by a member such as a hose or tube, and the hose or tube is the first accommodating member 210 and the second accommodating member 220 remain locked.

The flow rate control member is a first flow rate control unit 310 for controlling the flow rate of the acidic agent supplied from the first accommodating member 210 and the second accommodating member 220 to adjust the flow rate of the disinfectant and a second flow rate control unit 320 .

The first flow rate control unit 310 and the second flow rate control unit 320 each have a plunger piston and an auxiliary pump for taking and metering an acidic agent and a disinfectant, and the plunger piston slides in a cylindrical chamber of the auxiliary pump. and can be adjusted to the desired flow rate by the administrator.

In addition, the dilution member includes a first dilution unit 410 and a second flow rate control unit 320 that mix the acidic agent supplied through the first flow rate control unit 310 and the raw water to dilute the acidic formulation. and a second dilution unit 420 for diluting the disinfectant by mixing the sterilizing agent supplied through the first dilution unit 410 with the acidic agent diluent supplied through the dilution unit 410 .

The first dilution unit 410 and the second dilution unit 420 are the raw water supplied from the supply member 100 , that is, the raw water supplied from the working water supply pipe 130 to dilute the acidic agent and the sterilizing agent, respectively. A pump operated by

That is, the pump of the first dilution unit 410 uses the first inlet for accommodating the raw water flow from the working water supply pipe 130 to drive the differential piston, and the acid detergent through the first flow rate control unit 310 . a second inlet for taking, and a first outlet for meteringly mixing the raw water and the acid detergent. In addition, the pump of the second dilution unit 420 is a third inlet for accommodating the acid agent dilution solution flow at the first outlet to drive the differential piston, and a third inlet for receiving the sterilizing agent through the second flow rate control unit 320 . It includes a fourth inlet, a second outlet for discharging a mixture of the sterilizing agent and the acidic agent diluted solution in a metering manner.

For the configuration of the pumps as described above, for example, the pump structure described in EP 1151196 or US 6684753 may be applied.

In addition, the diluted acidic agent and disinfectant diluted solution discharged through the second outlet may be diluted at a dilution ratio desired by the administrator, for example, 500 times by the raw water supplied through the dilution water supply pipe 140 .

On the other hand, in the discharge pipe 500 for discharging sterilization and disinfection water via the dilution water supply pipe 140, as shown in FIG. An ORP sensor 520 for measuring an Oxidation-Reduction Potential (ORP) value may be mounted. By providing the pH sensor 510 and the ORP sensor 520, it is possible to provide precise and safe sterilization and disinfection water.

Controlling the acidity after dilution in the first embodiment of the sterilizing and disinfecting water generating apparatus according to the present invention is because chlorine gas (Cl ₂ ), a by-product, is generated at a high concentration when the reactants are hypochlorous acid and an acidic agent. In strong acids, hypochlorous acid generates chlorine gas. Therefore, in the flow control member and the dilution member of the first embodiment, the acidic agent is added to the raw water through the first flow control unit 310 and the first dilution unit 410 to adjust the acidity, and the second flow rate control unit 320 And sodium hypochlorite is introduced into the second dilution unit 420 to generate hypochlorous acid generated in a slightly acidic state.

As described above, in the first embodiment of the present invention, hydrogen peroxide (H ₂ O ₂ ) and sodium hypochlorite (NaClO) solution, which are compounds used as an oxidizing agent disinfectant, hydrogen ion concentration (pH) The oxidation power and chemical species change according to the conditions were observed, and the generation of chemical species with high oxidizing power under acidic conditions was confirmed, and a sterilizing and disinfecting water generating device was prepared that facilitates dilution-mixing-acidity control in the field.

In the sterilization and disinfection water generating apparatus in the first embodiment of the present invention as shown in FIG. 1, the presence of hypochlorous acid (HClO) was confirmed.

2 is a graph showing a decrease in ^{ClO −} and an increase in HClO according to an increase in the hydrogen ion concentration of a basic NaClO solution.

^{That is, it can be confirmed that the concentration of ClO −} at 290 nm, confirmed under basic conditions, decreases as the pH decreases and the hydrogen ion concentration increases, and disappears, and at 230 nm, HClO, a new chemical species, is generated.

[ Second embodiment ]

3 is a block diagram showing the configuration of a second embodiment of the sterilization and disinfection water generating apparatus according to the present invention. In addition, in the second embodiment, the same reference numerals are given to the same parts as in the first embodiment, and repeated descriptions thereof are omitted.

In the sterilization and disinfection water generating device according to the second embodiment of the present invention, chlorine dioxide (ClO ₂ ), which has recently been spotlighted due to its high safety and oxidizing power, is generated and manufactured on-site (places requiring sterilized water), sodium chlorite ( sodium chlorite; NaClO ₂ ) An acidic agent is added to the solution to produce chlorine dioxide.

To this end, the sterilization and disinfection water generating apparatus according to the second embodiment of the present invention is an apparatus for generating sterilizing and disinfecting water by receiving raw water as shown in FIG. 3 , and a supply member 100 for supplying raw water, an acidic agent A first accommodating member 210 for accommodating the , a second accommodating member 220 for accommodating the sterilizing agent, the acidic agent supplied from the first accommodating member 210 and the sterilization supplied from the second accommodating member 220 . Through the reactor 340 reacting the disinfectant at a high concentration, the third flow control member 330 for controlling the flow rates of the acid agent and the sterilizing agent supplied from the reactor 340, respectively, and the third flow control member 330 A third diluent 430 for diluting the acidic agent and disinfectant by mixing the supplied acidic agent and sterilizing agent with raw water supplied through the supply member 100, and the third diluting part 430 diluted in and a discharge pipe 500 for discharging sterilizing and disinfecting water, wherein the flow rate control member and the dilution member are provided in the housing 10 .

As shown in FIG. 3, the supply member 100 is a raw water supply pipe 110 for supplying groundwater or constant raw water, a three-way valve 120 for separately supplying raw water supplied from the raw water supply pipe 110, The working water supply pipe 130 for supplying the raw water supplied through the three-way valve 120 for the operation of the dilution member, and the dilution supplying the raw water supplied through the three-way valve 120 for dilution of sterilizing and disinfecting water Consists of a water supply pipe (140). The raw water supply pipe 110 , the working water supply pipe 130 , and the dilution water supply pipe 140 may be made of stainless steel, high-density Teflon, or industrial polymer resin, as in the first embodiment.

Meanwhile, in the second embodiment, citric acid or hydrochloric acid may be used as the acidic agent provided in the first accommodating member 210 , and the sterilizing agent provided in the second accommodating member 220 may include sodium chlorite; NaClO ₂ may be applied.

The reactor 340 is connected to the first accommodating member 210 and the second accommodating member 220 through a member such as a hose or tube, and it takes time for the chlorous acid and the acidic agent to generate chlorine dioxide at a dilute concentration. It is designed to solve the problem of taking a long time. That is, the chemical reaction of chlorous acid and acidic agent takes a long time because of the collision reaction between the reactants, but the higher the concentration, the higher the probability and the higher the reaction rate. Accordingly, in the second embodiment of the present invention, the reactor 340 is provided at the front end of the third flow rate control member 330 and driven by a single pump to generate sterilization and disinfection water.

The reactor 340 is preferably made of a material that can withstand the pressure of the pump provided in the third dilution unit 430 and withstand the strong oxidizing power of chlorine dioxide. For example, the reactor 340 may be made of stainless steel or high-density Teflon or industrial polymer resin.

The third flow rate control member 330 controls the flow rate of the acidic agent and the sterilizing agent supplied from the reactor 340, and the first flow rate control unit 310 and the second flow rate control unit ( 320), a plunger piston and an auxiliary pump are provided, and the plunger piston slides in the cylindrical chamber of the auxiliary pump, and the administrator can adjust the desired flow rate.

In addition, the third dilution unit 430 is a pump operated by raw water supplied from the working water supply pipe 130 as shown in FIG. 3 in order to simultaneously dilute the chemically reacted acid agent and the disinfectant in the reactor 340 . Including, this pump also includes a reciprocating type differential piston for driving the plunger piston of the flow rate control unit, like the pump of the first embodiment.

The pump of the third dilution unit 430 is a first inlet for accommodating the raw water flow from the working water supply pipe 130 to drive the differential piston, and the acid detergent through the third flow rate control unit 330. and a second inlet, and a first outlet for metered mixing of the chemically reacted acid and disinfectant with raw water.

In addition, the chlorine dioxide sterilizing water, which is the acidic agent diluted solution and the sterilizing disinfectant diluted solution discharged through the second outlet, is a dilution ratio desired by the administrator by the raw water supplied through the dilution water supply pipe 140, for example, at a ratio of 500 times. can be diluted.

Meanwhile, in the second embodiment, as shown in FIG. 3 , in the discharge pipe 500 for discharging chlorine dioxide sterilizing water via the dilution water supply pipe 140 , a pH sensor for measuring the acidity in the discharged sterilizing and disinfecting water 510 and an ORP sensor 520 for measuring an Oxidation-Reduction Potential (ORP) value may be mounted. Even in the second embodiment, it is possible to provide precise and safe chlorine dioxide sterilization water by providing the pH sensor 510 and the ORP sensor 520 .

As described above, in the sterilization and disinfection water generating apparatus according to the second embodiment of the present invention, the reactor 340, the third flow rate control member 330, and the third dilution unit 430 using one pump are provided. The dog's solution can produce chlorine dioxide sterile water reacted at high concentration. Therefore, it is possible to provide chlorine dioxide sterilized water with easy dilution-mixing-acidity control in the field.

In the sterilization and disinfection water generating apparatus in the second embodiment of the present invention as shown in FIG. 3, _{the generation of chlorine dioxide (ClO 2} ) was confirmed.

4 is a graph for confirming _{chlorine dioxide ClO 2} produced by the addition of hydrogen ions to the chlorous acid ClO ₂ ^{- solution.}

That is, chlorous acid at 260 nm generates chlorine dioxide with high oxidizing power under acidic conditions, and it can be confirmed at 360 nm.

[Experimental example]

Next, the sterilization and disinfection power test was performed on Escherichia coli / Staphylococcus aureus with the sterilizing and disinfecting water generated in the sterilizing and disinfecting water generating apparatus of the first embodiment described above.

That is, a system using the sterilization and disinfection water generating device of Example 1 was manufactured, and the sterilizing power of the sterilizing and disinfecting water prepared by adding 5% citric acid or 2.5% hydrochloric acid as an acidic agent to 2% sodium hypochlorite was confirmed. The Ministry of Food and Drug Safety standards for sodium hypochlorite is 200 mg/L or less.

In the test example, 1 mL of hypochlorous acid and 1 mL of citric acid or hydrochloric acid were diluted 500-fold to reduce 99.999% or more of Escherichia coli / Staphylococcus aureus, as shown in Tables 1 and 2.

At a concentration of 40mg/L, which is five times lower than the Ministry of Food and Drug Safety standards for sodium hypochlorite, it was able to meet the standards required for disinfectants such as utensils as food additives.

Although the invention made by the present inventors has been described in detail according to the above embodiments, the present invention is not limited to the above embodiments and various modifications can be made without departing from the gist of the present invention.

By using the sterilization and disinfection water generating device according to the present invention, it is possible to generate sterilization and disinfection water at a site where sterilization water is required.

100: supply absence
210: first receiving member
220: second receiving member
310: first flow control unit
320: second flow control unit
410: first dilution part
420: second dilution part

Claims (7)

A device that receives raw water and generates sterilization and disinfection water that can be diluted-mixed-acidity controllable at the site of use,
A raw water supply pipe for supplying groundwater or constant raw water, a three-way valve for separately supplying raw water supplied from the raw water supply pipe, an operating water supply pipe for supplying raw water supplied through the three-way valve for operation of the diluting member, the 3 A supply member having a dilution water supply pipe for supplying raw water supplied through a directional valve for dilution of sterilization and disinfection water;
a first receiving member containing citric acid;
a second receiving member containing sodium hypochlorite (NaClO);
A first flow rate control unit for controlling the flow rate of citric acid supplied from the first accommodating member and a second flow rate control unit for adjusting the flow rate of sodium hypochlorite supplied from the second accommodating member;
A first dilution unit for diluting the citric acid by mixing citric acid supplied through the first flow rate control unit and raw water supplied from the working water supply pipe, and sodium hypochlorite supplied through the second flow rate control unit and the first dilution A second dilution unit for diluting the disinfectant by mixing the citric acid diluent supplied through the unit;
and a discharge pipe for discharging the sterilizing and disinfecting water diluted in the second dilution unit;
The supply member, the first flow rate control unit and the second flow rate control unit, the first dilution unit and the second dilution unit, and the discharge pipe are provided in the housing;
The housing does not require a power source, and can be installed directly by moving to a place requiring sterilization water,
The first dilution unit and the second dilution unit include a pump operated by raw water supplied from the working water supply pipe,
The discharge pipe is equipped with a pH sensor for measuring acidity and an ORP sensor for measuring an Oxidation-Reduction Potential (ORP) value in the discharged sterilizing and disinfecting water,
The sterilizing and disinfecting water diluted by the second dilution unit is diluted with the raw water supplied through the dilution water supply pipe to a dilution ratio desired by an administrator. delete delete A device that receives raw water and generates sterilization and disinfection water that can be diluted-mixed-acidity controllable at the site of use,
A raw water supply pipe for supplying groundwater or constant raw water, a three-way valve for separately supplying raw water supplied from the raw water supply pipe, an operating water supply pipe for supplying raw water supplied through the three-way valve for operation of the diluting member, the 3 A supply member having a dilution water supply pipe for supplying raw water supplied through a directional valve for dilution of sterilization and disinfection water;
a first receiving member containing citric acid;
a second receiving member for receiving sodium chlorite (NaClO _{2 );}
a reactor for reacting citric acid supplied from the first accommodating member and sodium chlorite supplied from the second accommodating member at a high concentration;
a third flow control member for controlling the flow rates of the acidic agent and sterilizing agent supplied from the reactor;
a third dilution unit for mixing the acidic agent and disinfectant supplied through the third flow rate control member with the raw water supplied through the working water supply pipe to dilute the acidic agent and the disinfectant;
and a discharge pipe for discharging the sterilizing and disinfecting water diluted in the third dilution unit;
The supply member, the reactor, the third flow control member, the third dilution part and the discharge pipe are provided in the housing,
The housing does not require a power source, and can be installed directly by moving to a place requiring sterilization water,
The third dilution unit includes a pump operated by raw water supplied from the working water supply pipe,
The discharge pipe is equipped with a pH sensor for measuring acidity and an ORP sensor for measuring an Oxidation-Reduction Potential (ORP) value in the discharged sterilizing and disinfecting water,
The sterilization and disinfection water generating apparatus, characterized in that the sterilization and disinfection water diluted by the third dilution unit is diluted to a dilution ratio desired by an administrator by the raw water supplied through the dilution water supply pipe. In claim 4,
The sterilization and disinfection water is a sterilization and disinfection water generating device, characterized in that it contains _{chlorine dioxide (ClO 2 ).} delete delete

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