KR20190026552A - Apparatus for rapidly generating hypochlorous acid water - Google Patents

Abstract

The present invention relates to a device for instantaneously manufacturing hypochlorous acid water. The device for instantaneously manufacturing hypochlorous acid water includes: a flow pipe installed in a housing; a water inlet for injecting water into one end of the flow pipe; a carbon gas inlet unit and a sodium hypochlorite inlet, for individually injecting carbon gas and sodium hypochlorite solution in the lower part than the water inlet; a pipe type mixer installed in the lower part than the inlets and including a mixing shaft rotating by the inflow of a mixture of the water in the flow pipe, the carbon gas, and the sodium hypochlorite solution; and a hypochlorous acid water outlet positioned on the other end of the flow pipe in the lower part than the pipe type mixer. Therefore, the device for instantaneously manufacturing hypochlorous acid water can provide the weak-acidic hypochlorous acid water of high concentration as disinfection water continuously sprayed by instantaneously manufacturing the weak-acidic hypochlorous acid water of high concentration, capable of preventing excessive acidification due to organic matters, in a site in an odor removing field using effective chlorine of the high concentration or in a marine product or livestock product sanitation field in which the many organic matters exist.

Description

APPARATUS FOR RAPIDLY GENERATING HYPOCHLOROUS ACID WATER [0002]

The present invention relates to a hypochlorous acid water producing device used as a disinfection sterilizing water, and more particularly, to a hypochlorous acid water producing device for sterilizing and disinfecting, for example, in a field of aquatic or livestock processing hygiene where a large amount of organic matter is present, The present invention relates to a new hypochlorous acid water producing machine capable of quickly producing and supplying a high-concentration hypochlorous acid water of a low acid concentration, which is prevented from excessive acidification of sanitizing disinfection, in the field without a separate storage tank.

In general, disinfected water using micro-acidic hypochlorous acid (HOCl) has excellent sterilization power and broad spectrum sterilizing effect. When it comes into contact with bacteria or organic matter, it is reduced to water immediately after sterilization and does not remain, And it is environmentally friendly. As a method for producing such hypochlorous acid water, a method of electrolyzing hydrochloric acid for food addition or electrolytic electrolysis of a mixture of hydrochloric acid and salt for food addition is generally known. The hypochlorous acid water produced by the electrolysis of hydrochloric acid for food addition is usually produced as disinfection water having a hydrogen ion concentration (pH) of 5 to 6.5 and an effective chlorine concentration of 10 to 30 ppm. On the other hand, electrolytic electrolysis of electrolytes mixed with hydrochloric acid and salt for food additive produces a hypochlorous acid water with a pH of 5 to 6.5 and an effective chlorine concentration of 10 to 80 ppm.

A problem in the method of generating hypochlorous acid by using only hydrochloric acid for food addition is that it is difficult to manage the pH according to the change of effective chlorine concentration. In other words, when the electrolytic efficiency is increased to raise the effective chlorine concentration of the hypochlorous acid water to 30 ppm or more, the pH is lowered below 5, and the acidity increases from weak to acidic or strongly acidic. There is also an increased risk of chlorine gas generation. If the chlorine gas is generated excessively, it is not preferable because the generated chlorine gas can damage the human body and adversely affect the sterilizing power.

In order to compensate for this, a method of producing hypochlorous acid by electrolyzing electrolytic mixture of hydrochloric acid and salt for food addition has been proposed. In this case, there is an advantage that the decrease of the pH can be prevented while obtaining the effective chlorine concentration of 30 ppm or more. However, this is also limited to the effective chlorine concentration in the range of 60 to 80 ppm, and there is a limitation in preventing the pH drop when producing hypochlorous acid water having an effective chlorine concentration exceeding this range. Furthermore, there is a risk that the salt component remains in the electrolyte without being decomposed, resulting in various problems such as a decrease in durability of the equipment and an increase in power consumption.

Korean Patent No. 10-1415726 (issued on July 14, 2014)

The inventor of the present invention has found that, by the technique of generating hypochlorous acid water by the conventional electrolysis method, since the concentration of the sterilized disinfected water is limited to a certain range, the sterilization disinfection or odor of the fisheries and livestock processing fields, In order to solve this problem, it is necessary to develop a new microacid hypochlorous acid production technology which does not have a problem of increasing the acidity of the hypochlorous acid water while producing a high concentration of hypochlorous acid water for disinfection, When the gas (CO ₂ ) and the sodium hypochlorite (NaOCl) solution are mixed and reacted in water, the acidic hypochlorous acid water having a stable pH while maintaining the high effective chlorine concentration by the pH buffering action of the carbonic acid gas dissolved in the water , And furthermore, the control of the effective chlorine concentration is made by adjusting the amount of sodium hypochlorite That it is possible by clause found.

Furthermore, the present inventors have found that when reacting with stirring using a piping type mixer capable of providing a sufficient mixing area while continuously introducing carbon dioxide gas (CO ₂ ), sodium hypochlorite (NaOCl) solution and water, the added sodium hypochlorite It is possible to continuously and rapidly produce the hypochlorous acid hypochlorous acid solution having a stable pH while maintaining the desired effective concentration of chlorine at a desired concentration, and therefore, it is possible to rapidly produce sterilized hypochlorous acid water without pre- We realized that it is possible to construct an instant manufacturing device.

An object of the present invention is to provide a new hypochlorous acid water instant manufacturing machine which can produce hypochlorous acid water by mixing carbon dioxide gas and sodium hypochlorite in water and reacting them.

Specifically, the hypochlorous acid water producing machine according to the present invention introduces carbon dioxide gas, sodium hypochlorite, and raw water into the flow tube in the housing to keep the flow of the continuous mixture, and the stirring shaft rotated by the flow pressure is arranged And a hypochlorous acid water generator for generating hypochlorous acid water and continuously outputting the hypochlorous acid water to the outside of the housing so that the hypochlorous acid water having a desired concentration and pH can be prepared on the fly The purpose is to provide.

Further, the piped mixer of the hypochlorous acid water producing machine of the present invention is disposed in the middle of the flow tube in which the flow of the continuous mixture of the carbonic acid gas, sodium hypochlorite and the raw water is maintained, and has a relatively narrow diameter as compared with the diameter of the flow tube, A plurality of mixing tubes each having a stirring shaft rotated by pressure are arranged in parallel so that the mixture flows of the upstream flow tubes are dispersedly introduced into a plurality of mixing tubes to be mixed and then mixed and output to one downstream flow tube, And to provide a new hypochlorous acid water instant manufacturing machine which can efficiently perform the mixing process for the production of acidic hypochlorous acid water.

Further, the stirring shaft provided in the mixing pipe constituting the piped mixer of the hypochlorous acid water producing machine according to the present invention has the spiral blades opposite to each other in the upstream and downstream directions, so that the flow of the mixture being stirred in the piped mixer The present invention is directed to a novel hypochlorous acid water instant producing machine which is capable of producing a vortex in the water.

Further, in the pipe type mixer of the hypochlorous acid water producing machine of the present invention, the mixture flow of one flow pipe is dispersed first in a plurality of paths, and then the mixed flow of the second dispersion Type mixed mixer can be efficiently arranged in a narrow space in the housing by combining the mixed mixed gas and the mixed gas mixed with the mixed gas, And the like.

This object is achieved by a hypochlorous acid water producing machine provided according to the present invention.

A hypochlorous acid water producing machine provided according to one aspect of the present invention includes: a flow pipe disposed in a housing; A raw water inlet for introducing raw water to an upstream side of the flow pipe; A carbonic acid gas inlet and a sodium hypochlorite inlet for introducing carbonic acid gas and a sodium hypochlorite solution, respectively, downstream from the raw water inlet; A pipe type mixer disposed downstream of the inlets and having a stirring shaft rotated by a flow of raw water of the flow pipe, a mixture of carbon dioxide gas and sodium hypochlorite solution; And a hypochlorous acid water outlet located downstream of the piped mixer.

In the embodiment, the pipe type mixer is constituted such that a plurality of mixing pipes are arranged in parallel in the same direction as the flow direction, the diameter of the mixing pipe is narrower than the diameter of the flow pipe, Respectively.

In an embodiment, the stirring shaft includes a spiral blade disposed along an outer circumferential surface of the shaft arranged in the same direction as the flow direction, and the spiral blade is arranged to be opposed to the shaft upstream and downstream of the shaft in accordance with rotation of the shaft As shown in FIG.

In the embodiment, the pipe type mixer is such that the flow tube flow is firstly dispersed in a plurality of paths upstream in the upstream, then is secondarily dispersed and introduced into a plurality of mixing tubes in a plurality of mixers connected to the respective paths, And output to a single flow pipe via a plurality of paths.

In an embodiment, the hypochlorous acid water discharged to the downstream of the pipeline type mixer is a hypochlorous acid water whose pH is in the range of 5 to 6.5 and the hypochlorous acid concentration is 50 to 200 ppm.

According to the present invention, there is provided a hypochlorous acid water instant generator capable of instantly manufacturing and dispensing hypochlorous acid water as disinfection water sterilizing water applicable in the field of disinfection or odor removal in the field of fisheries and livestock processing where excessive organic matter exists, for example .

According to the present invention, there is also provided a hypochlorous acid water instant preparation system in which carbon dioxide gas and sodium hypochlorite which are not the conventional electrolysis type are mixed with water and diluted.

Further, according to the present invention, it is possible to prevent the problem that the acidity is lowered due to the pH buffering action of carbonic acid gas in the process of producing hypochlorous acid, and the hypochlorous acid water thus generated can be used in the field of livestock or fisheries sanitation, In order to be applicable to a lot of organic matter as well, it maintains a stable pH at a high concentration while maintaining a high effective chlorine level. Accordingly, there is no risk to human health due to the generation of chlorine gas and the effective chlorine form maintains the molecular structure of hypochlorous acid. High-quality mis-acidic hypochlorous acid water without degradation can be produced.

According to the hypochlorous acid water instant generator of the present invention, the carbonic acid gas and the sodium hypochlorite are sequentially introduced into the raw water flowing in one flow pipe to keep the flow of the continuous mixture, and the diameter of the flow pipe is relatively narrow And a plurality of mixing tubes each having a stirring shaft rotated by a flow pressure are arranged in parallel to each other to produce a hypochlorous acid water by being stirred by a pipe type mixer so as to continuously output the hypochlorous acid water, .

Further, according to the hypochlorous acid water producing machine of the present invention, the carbonic acid gas and the sodium hypochlorite are sequentially introduced into the raw water flowing in one flow pipe to keep the flow of the continuous mixture, and the free- The mixed chlorine water is stirred by a piping type mixer in which a plurality of mixing tubes each having a stirring shaft having spiral blades opposite to each other are arranged in parallel so as to generate hypochlorous acid water and continuously output the hypochlorous acid water, While maintaining a stable pH, can be produced continuously and immediately.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram illustrating a hypochlorous acid water instant generator configuration in accordance with an embodiment of the present invention. FIG.
2 is a schematic view illustrating the configuration of the hypochlorous acid water producing machine of Fig. 1 except for the door portion. Fig.
3 is a schematic view showing the appearance of a pipe type mixer in a hypochlorous acid water producing machine according to an embodiment of the present invention.
4 is a schematic view illustrating an internal configuration of a piped mixer in a hypochlorous acid water producing machine according to an embodiment of the present invention.
5 is a schematic view illustrating a stirring shaft provided in a pipe type mixer in a hypochlorous acid water producing machine according to an embodiment of the present invention.
6 is a piping diagram illustrating a configuration of a hypochlorous acid water producing machine according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. The following description and drawings are only for illustrative purposes and are not intended to limit the scope of the invention. In other words, it is to be understood that the embodiments described below can be modified in various ways when they are implemented in the field, and if they are within the technical idea of the present invention, they should belong to the present invention. To be readily understood by those skilled in the art of marine technology.

The hypochlorous acid water producing machine provided according to the present invention produces hypochlorous acid water by mixing carbon dioxide gas and sodium hypochlorite in water and diluting the water.

Here, the carbon dioxide gas means carbon dioxide (CO2). Since sodium hypochlorite (NaOCl) is used as a product such as lactose, it can be obtained by electrolysis of saline or hydrochloric acid, shows alkalinity (pH 8 to 9), and is stimulated in the eyes and respiratory tract. Dilute to 100 times.

When dissolved in water (H ₂ O), NaOCl and CO ₂ are dissolved in water (H ₂ O) to produce hypochlorous acid (HOCl), which is ionized in the same manner as represented by the following reaction scheme 1, It is present in the mixture diluted solution containing ^- carbonate ion (HCO ₃₎ for the control.

(Reaction 1) 2NaOCl + CO ₂ + H ₂ O ==> HOCl + OCl ^- + 2Na ⁺ + HCO ₃ ^-

In more detail, carbon dioxide dissolved in water is present in three ionic forms, H ⁺ , HCO ₃ ^- , or CO ₃ ^2- , depending on the acidity. For example, in the reaction equation shown in the following reaction formula 2, when the acidity of the mixed dilution solution is increased (that is, when the hydrogen ion concentration is increased, that is, when the pH is inversely related to the hydrogen ion concentration) (H ⁺ ), thereby lowering the hydrogen ion concentration of the solution (i.e., increasing the pH). Haejimyeon the acidity of the mixture was diluted solution around the other (that is hydrogen when ion concentration is low, i.e. at elevated pH of the reciprocal of the hydrogen ion concentration), the reaction proceeds to the right by exporting the hydrogen ion concentration of hydrogen ions (H ⁺⁾ And thus the pH is decreased. In this way, the carbonic acid gas plays a role of controlling the number of moles of the hydrogen ions in the mixed dilution solution, so that the entire mixed dilution solution can maintain the pH.

(Scheme 2) H ₂ CO ₃ <==> H ⁺ + HCO ₃ ^- <==> 2H ⁺ + CO ₃ ^2-

The pH buffering action of the carbonic acid gas makes it possible to produce a hypochlorous acid water having a constant pH at a relatively high concentration and a high concentration of the effective chlorine. The control of the effective chlorine concentration adjusts the amount of sodium hypochlorite .

Accordingly, even when the pH of the sterilized water is inevitably lowered by, for example, using hypochlorous acid water as the sterilized water to sterilize the organic matter, the pH of the carbonic acid gas component can be adjusted to prevent acidification of sterilized water, It is possible to prevent a dangerous factor from being generated.

The following Reaction Schemes 3 and 4 illustrate the reaction between the organic material (R-H) and hypochlorous acid (HOCl) when the organic material is sterilized by comparing the present invention in which there is no carbon dioxide gas and carbon dioxide gas.

(Scheme 3) RH + HOCl => R -OH + H + + Cl -

Reaction Equation 3 shows that the hypochlorous acid generated by the conventional electrolysis method reacts with the organic substance (RH) to increase the hydrogen ion (H ⁺ ) during sterilization, and as a result, the pH is lowered and the acidity is increased.

(Scheme 4) RH + HOCl + CO ₃ ^2- => R-OH + HCO ₃ ^- + Cl ^-

Reaction Scheme 4 shows a case where the hypochlorous acid hydrogencarbonate-containing organic material (RH) containing carbon dioxide is sterilized according to the present invention. In this case, the sterilization effect during hypochlorite organic matter (RH) and reacted by increasing the hydrogen ion (H ^+),, bicarbonate ion or bicarbonate ion derived by the carbon dioxide gas, as shown in Scheme 2 (HCO ₃ ^- ) absorbs the hydrogen ion (H ⁺ ) and becomes carbonate ion (CO ₂ ^- ). As a result, the hydrogen ion (H ⁺ ) is not increased and the acidification of the sterilization water due to the hydrogen ion (H ⁺ ) is prevented, thereby preventing the corrosion of the equipment and suppressing the generation of chlorine gas.

The gas mixing method according to the present invention can be effectively applied by producing sterilized disinfected water having a high concentration of effective chlorine for hygienic management and odor removal in the field where excessive organic matter is not available which can not be applied by the electrolysis method, It is possible to prevent the risk of corrosion of the equipment and generation of chlorine gas.

1 and 2 are schematic diagrams illustrating a hypochlorous acid water reproducting machine configuration according to an embodiment of the present invention.

Referring to FIG. 1, a hypochlorous acid water producing machine 10 in which each part is disposed in a housing 11 having a substantially rectangular parallelepiped shape is shown. The front surface of the housing 11 can be opened and closed by the door 12. [ The housing 11 is divided into an electronic part room 13 in which electronic parts necessary for controlling the controller, a sensor, a power surge and the like are built in the upper part and a piping room 15 in which a piping part in which hypochlorous acid water is actually generated is incorporated do.

In the illustrated example, a control unit 17, for example in the form of a PCB board panel, is disposed on the door 12 side. Electronic components such as a power supply (SMPS, a switch mode power supply), a pressure sensor, and a regulator may be disposed in the upper electronic component chamber 13 of the housing 11. Parts and pipes related to the introduction of raw water, carbon dioxide gas, and sodium hypochlorite into the lower piping chamber (15) of the housing (1) to produce hypochlorous acid water are disposed. The power supply of the control unit 17 and the electronic component chamber 13 is connected to a component that needs to be controlled by the control unit 17 like a solenoid valve of the piping chamber 15 and a cable for control signal and / .

The control unit 17 is a part including a processor or a controller for controlling each part of the hypochlorous acid water producing machine 10. [ A portion of the control unit 17 which is exposed outside the door 12 is provided with an input button such as a power switch for operating the power of the hypochlorous acid water producing machine 10 to be turned on or off by the user, An LED (light-emitting diode) display portion for audibly displaying, and / or a display means, and / or a speaker for an alarm.

FIG. 2 is a schematic view illustrating the construction of the hypochlorous acid water producing machine of FIG. 1 in more detail; FIG.

2, when raw water, carbon dioxide gas, and sodium hypochlorite are introduced into the piping chamber 15, they are mixed to produce a hypochlorous acid water having a concentration of, for example, 50 to 200 ppm and a pH of 5 to 6.5 The pipes to be discharged are arranged. According to the present invention, the mixture of raw water, carbon dioxide gas and sodium hypochlorite flows continuously along the main tubes 211, 217, 220 and 223, and the main tubes 211, 217, 220, (211, 217, 223) and a piped mixer (220) for efficiently and uniformly stirring the mixture. The flow tubes 211, 217 and 223 are provided with an upstream flow tube 211 for introducing carbonic acid gas while feeding raw water, an intermediate flow tube for feeding the sodium hypochlorite solution to the pipe type mixer 220 And a downstream flow pipe 223 for conveying the mixture discharged from the piped mixer 220 (that is, hypochlorous acid water) to the outside of the housing 11 for discharging.

In the illustrated example, the raw water, such as tap water, is supplied to the upstream side (not shown) disposed below the piping chamber 15 via the solenoid valve 207, which is disposed in the raw water inlet and can be controlled by the control unit 17 And flowed into the flow tube 211. The upstream-side flow pipe 211 is in turn connected to the carbonic acid gas inlet 213.

The carbonic acid gas inlet 213 is connected to the carbonic acid gas manifold 203 by a pipe indicated by a dotted line in the figure. The carbonic acid gas manifold 203 can be connected to a carbon dioxide gas cylinder (not shown) connected to the outside of the housing 11 through a pressure sensor and regulator 201 disposed in the electronic component chamber 13 in the illustrated example have. The carbon dioxide gas bomb (not shown) contains liquefied carbon dioxide gas and can discharge gaseous carbon dioxide gas at a predetermined pressure. The pressure sensor and regulator 201 regulates the carbonic acid gas at a predetermined pressure, (203). &Lt; / RTI &gt; The carbonic acid gas manifold 203 may be provided with a solenoid valve that can be controlled by the control unit 17. The control unit 17 can control the operation of the solenoid valve so as to determine the inflow amount of the carbonic acid gas and input the carbonic acid gas from the carbonic acid gas manifold 203 to the upstream flow pipe 211 through the carbonic acid gas injection unit 213.

On the other hand, the downstream side end of the upstream side flow tube 211 communicates with the upstream side end of the downstream side flow tube 217. The downstream flow tube 217 is connected to the sodium hypochlorite manifold 205 by a tube indicated by a dashed line in the figure. The sodium hypochlorite manifold 206 may be connected to a sodium hypochlorite tank (not shown) that is connected to the exterior of the housing 11 via unillustrated components. The unillustrated sodium hypochlorite tank contains a predetermined concentration of sodium hypochlorite solution and is operable to flow into the sodium hypochlorite manifold 205, for example, according to the operation of the metering pump. The sodium hypochlorite manifold 205 may be provided with a solenoid valve which can be controlled by the control unit 17. The control unit 17 can determine the inflow amount of sodium hypochlorite and control the solenoid valve operation so that the sodium hypochlorite is injected from the sodium hypochlorite manifold 205 through the sodium hypochlorite input unit 215 into the intermediate flow pipe 217.

Since it is generally easier to control the input amount of the solution than to adjust the gas input amount, the control unit 17 is configured to adjust the input amount of the sodium hypochlorite solution and / or the raw water input amount based on the input amount of the carbonic acid gas desirable.

The downstream end of the downstream flow tube 217 is connected to the upstream end of the piped mixer 220. Inside the piped mixer 220, a stirring shaft that rotates naturally by the flow pressure of the mixture is built in, and the mixture is uniformly mixed by the rotation of the stirring shaft while passing through the piped mixer 220, Carbon dioxide gas and sodium hypochlorite are caused to react with each other, and as a result, hypochlorous acid water can be generated. The pipe-type mixer 220 occupies the largest volume of the pipes arranged in the housing 11. It is preferable that the piped mixer 220 is configured to be dispersed in a plurality of paths and to be stirred by a plurality of stirring shafts so that the volume of the piped type mixer 220 is not excessively large and a large stirring effect is provided for a short time . The construction of such a piped mixer 220 is described in more detail below with reference to Figs. 3 to 5.

The mixture which is homogeneously stirred in the piped mixer 220 and then discharged at the downstream end of the piped mixer 220 is sent as a hypochlorous acid water having a predetermined chlorine concentration through the downstream flow pipe 223 And may be discharged to the outside of the housing 11 through the hypochlorous acid water discharge manifold 225. The hypochlorous acid water discharge manifold 225 may be connected to a pipe provided with a nozzle for spraying hypochlorous acid water, for example.

The hypochlorous acid water producing apparatus 10 of the above-described example is integrally formed in the housing 11 having a generally rectangular parallelepiped shape so that it can be installed in a narrow space. In addition, as a sterilizing water for sterilization, a high concentration of hypochlorous acid It can be produced on-site whenever it is needed, providing the advantage of being readily available for use for the desired disinfection.

FIG. 3 is a schematic view showing the appearance of a pipe type mixer in a hypochlorous acid water producing machine according to an embodiment of the present invention, FIG. 4 is a schematic view illustrating an internal configuration of a pipe type mixer, FIG. 5 is a schematic view illustrating a stirring shaft to be.

3, the appearance of the piped mixer 220 of the hypochlorous acid water producing machine is shown in more detail. In the illustrated example, the piped mixer 220 is primarily dispersed into the two paths 302 and 303 through the upstream inlet port 301 connected to the downstream flow tube 217. The branch pipes 304 and 305 communicate with the downstream ends of the two paths 302 and 303, respectively. The mixture flows that have passed through the branch pipes 304 and 305 are converted into hypochlorous acid water and are introduced into one downstream flow pipe 223 through two paths 306 and 307, respectively.

The branch pipes 304 and 305 may have a structure in which four smaller diameter mixing pipes 403 disposed in a cylindrical housing 401 are arranged in parallel, as illustrated in Fig. In each mixing pipe 403, as shown in Fig. 5, a twin-spiral blade type stirring shaft 50 is disposed.

The stirring shaft 50 according to the present invention has a shaft 51 arranged in the same direction as the flow direction of the mixture (for example, the direction indicated by the solid arrow in FIG. 5 (b)) and the shaft 51 arranged along the outer peripheral surface of the shaft 51 And a pair of helical blades (53, 55). The pair of helical blades 53 and 55 rotate in opposite directions to each other.

That is, when the flow of the mixture flowing through the flow tube flows into the mixing tube 403, the stirring shaft 50 disposed in the mixing tube 403 rotates about the shaft 51 by the flow pressure of the mixture. When the shaft 51 rotates, the upstream blade 53 and the downstream blade 55 of the shaft 51 pressurize the flow of the mixture to rotate in mutually opposite directions. Whereby a vortex is formed in the flow of the mixture and can be agitated more efficiently.

Although the piped mixer 220 is shown in a form of being firstly dispersed by two paths and then secondarily dispersed by four mixing tubes in the illustrated example, the piped mixer of the present invention need not be limited to the illustrated example , It is obvious that the number of primary dispersion paths can be more than two and the number of mixing tubes arranged in each branch can be more or less than four.

6 is a piping diagram illustrating the construction of a hypochlorous acid water producing machine according to an embodiment of the present invention.

6, the illustrated hypochlorous acid water producing machine 600 includes a main tube 610, a carbon dioxide gas supplying unit 620, a sodium hypochlorite supplying unit 630, a controller 640, Type mixer 650, and a hypochlorous acid water outlet 660. This device has a structure in which water with controlled flow rate (raw water) is supplied and a certain amount of sterilized water (i.e., hypochlorous acid water) is generated and discharged.

All internal piping of the device is composed of corrosion-resistant polyvinyl chloride resin and fluorocarbon resin, so it is preferable to apply stainless steel material for the enclosure structure and all bracket structure of the device in preparation for discoloration or corrosion caused by sodium hypochlorite.

The main pipe portion 610 is composed of main components such as a flow pipe 611, which is a pipe through which water and additives of a predetermined supply water pressure are supplied and mixed and discharged. The inlet or upstream end of the flow tube 611 is constituted by a raw water inlet to which a raw water supply pipe such as tap water can be connected and the outlet of the flow pipe 611, that is, the downstream end, is made of carbon dioxide gas and sodium hypochlorite And the hypochlorous acid water produced by mixing and mixing is composed of a hypochlorous acid water outlet which is finally discharged.

A solenoid valve 613 is provided at the upstream end of the flow tube 611, that is, at the raw water inlet, for controlling the supply flow rate of the raw water by the controller 640. A check valve 615 may be included in a predetermined position of the flow tube 611 to prevent the direction of the raw water from flowing backward. The carbon dioxide gas and sodium hypochlorite are supplied and mixed with the raw water while the raw water flows into the flow pipe 611 through the solenoid valve 613 according to the present invention and the flow of the mixture is supplied to the flow pipe 611 Which is a part of the pipe-type mixer 650.

The carbon dioxide gas supply unit 620 supplies carbon dioxide gas of the carbon dioxide gas cylinder A to the flow pipe 611 and includes a regulator 623, a solenoid valve 625, a check valve 627 for preventing backflow, Lt; / RTI &gt; The carbonic acid gas cylinder A is a pressure tank containing carbon dioxide liquefied gas and can be constituted as a part of the hypochlorous acid water instant preparation apparatus 600 according to the present invention. However, the physical size of the hypochlorous acid water instant generator 600 Is not a part of the hypochlorous acid water producing machine 600, but is a separate device that can be connected through a predetermined carbon dioxide gas inlet pipe. The gas discharged from the carbon dioxide gas cylinder A can be regulated to a desired pressure by a regulator 623 integrated with the pressure sensor. The gas of a predetermined pressure regulated by the regulator 623 can be introduced into the flow pipe 611 by the operation of the solenoid valve 625 controlled by the control unit 640.

The regulator 623 provides gas pressure (or gas amount) information to the control unit 640. If it is determined that the sensed gas pressure is being supplied at a gas pressure lower than a value that does not satisfy the property of normal hypochlorous acid, an alarm condition occurs due to a signal from the control unit 640, do. For example, the range of the gas pressure for satisfying the pH range of the normal hypochlorous acid can be determined experimentally, and preferably, for example, 0.3-0.35 MPa. On the other hand, in order to prevent the backflow of the carbonic acid gas due to the pressure of the raw water flowing in the flow pipe 611, a check valve 627 is provided at a portion where the connection pipe for supplying carbon dioxide gas into the flow pipe 611 is connected to the flow pipe 611 ) Can be installed so that the carbonic acid gas can be easily introduced continuously.

The sodium hypochlorite supplying portion 630 is a portion for supplying sodium hypochlorite from the sodium hypochlorite tank B to the flow pipe 611 and includes a manual valve 632, a metering pump 633, an inlet manifold 635, A sensing sensor 637 and a check valve 639. [ The sodium hypochlorite tank (B) is a tank containing a sodium hypochlorite solution at a predetermined concentration and may be constituted as a part of the hypochlorous acid water instant preparation apparatus 600 according to the present invention. However, in the hypochlorous acid water instant preparation apparatus 600, Is not a part of the hypochlorous acid water instant generator 600 but a separate device which can be connected through a predetermined sodium hypochlorite input tube in order to prevent the physical size of the hypochlorous acid water from being excessively large.

The sodium hypochlorite solution of the sodium hypochlorite tank (B) (for example, lactus diluent) can be transferred to the inlet manifold 635 at a constant flow rate, that is, a predetermined rate of time, by the metering pump 133. A connection pipe for transferring sodium hypochlorite solution is connected from the inlet manifold 635 to the flow pipe 611. In the inlet manifold 635, the controller 640 can confirm the transfer of normal sodium hypochlorite through the fluid sensor 637. On the other hand, in order to prevent the backflow of the sodium hypochlorite solution due to the pressure of the raw water flowing in the flow pipe 611, a portion of the connection pipe, through which the sodium hypochlorite solution is injected into the flow pipe 611, A check valve 639 may be provided to facilitate the continuous introduction of sodium hypochlorite solution.

The gas discharged from the carbon dioxide gas cylinder A can be regulated to a desired pressure by a regulator 623 integrated with the pressure sensor. The gas of a predetermined pressure regulated by the regulator 623 can be introduced into the flow pipe 611 by the operation of the solenoid valve 625 controlled by the control unit 640.

In the embodiment, the metering pump 633 is designed to be charged into the raw water pipe such that a high concentration range of 50 to 200 ppm of hypochlorous acid is produced at the set value of the control unit 540, and the fluid sensing sensor 637 is designed to supply hypochlorous acid If the transfer of sodium is not possible, an abnormality signal is generated by the control unit 640 so that the apparatus is automatically stopped after the alarm operation. So that production water having a low chlorine concentration can not be produced. It is preferable that the piping material of the sodium hypochlorite supplying part 630 is applied to a polyvinyl chloride (PVC) and / or a polytetrafluoroethylene (PTFE) as a corrosion resistant material.

The pipe type mixing portion 650 is a portion that generates hypochlorous acid water by stirring a mixture of carbon dioxide gas, sodium hypochlorite solution and raw water. The pipe type mixing portion 650 may be configured as described with reference to FIGS. 3 to 5 above. The mixture of the carbonic acid gas, the sodium hypochlorite solution and the raw water can be uniformly stirred by the piping type mixing portion 650. Accordingly, the mixture having passed through the pipe type mixing portion 650 can be generated and discharged as hypochlorous acid water having a uniform concentration and pH continuously with time. In an embodiment, the pipe type mixing portion 650 may be made of a PVC material.

The hypochlorous acid water outlet 660 is connected to the downstream side of the pipe type mixing portion 650 and a pressure sensor 662 is provided to measure the flow rate of the hypochlorous acid water to be discharged, (640).

The control unit 640 is a processor or a controller for controlling each part. The device 600 also includes a power supply, such as a SMPS, for supplying operating power for each part although not shown in the figure.

<Examples>

According to the present invention, a 12% sodium hypochlorite solution and a liquefied carbon dioxide gas are mixed with raw water to produce 50 to 200 ppm of hypochlorous acid water in order to produce highly concentrated, hypochlorous acid water. To this end, 40 L sodium hypochlorite solution and 10 Kg liquefied carbon dioxide gas were continuously added to measure the consumption, hypochlorous acid concentration and pH change. In order to maintain a constant volume of raw water with a large capacity generator of 1,000 ~ 1,500 L / Hr, the system was equipped with a pressure pump and a pressure reducing valve at the front of the generator. The amount of sodium hypochlorite solution was measured by forced injection method using diaphragm dosing pump. The consumption of hypochlorous acid solution and the change of physical properties of hypochlorous acid were measured and summarized in Table 1 below.

Hypochlorous acid
Production (L / Hr) enemy
pH Hypochlorous acid
Concentration (ppm)
Hypochlorous acid
pH
Sodium hypochlorite
density(%) Hypochlorous acid
salt
Consumption (L / Hr) Carbon dioxide gas
Consumption (Kg / Hr) 1,000 7.1
50 5.5 12
0.41 0.65 1,000 100 5.6 0.83 0.7 1,000 150 5.5 1.25 0.75 1,000 200 5.6 1.67 0.7 1,500 50 5.5 0.63 0.9 1,500 100 5.5 1.3 0.85 1,500 150 5.6 1,78 0.95 1,500 200 5.6 2.49 0.95

As can be seen in Table 1, about 0.4 L of sodium hypochlorite was consumed to obtain 1,000 L of hypochlorous acid at a concentration of 50 ppm per hour, and about 1.6 L of sodium hypochlorite was consumed to obtain 200 ppm of hypochlorous acid . The consumption of carbon dioxide gas was not related to the concentration of hypochlorous acid. To maintain a stable pH of 5.5 ~ 5.6, the consumption of carbonic acid gas was constantly applied at a pressure of 0.3 ~ 0.35Mpa. To produce 1,000L hypochlorous acid, about 0.65 ~ 0.75Kg Was consumed.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Of course, fall within the scope of the present invention.

Claims (5)

As hypochlorous acid water producing machine,
A flow tube disposed within the housing;
A raw water inlet for introducing raw water into one end side of the flow tube;
A carbonic acid gas inlet and a sodium hypochlorite inlet for introducing carbonic acid gas and a sodium hypochlorite solution, respectively, downstream from the raw water inlet;
A pipe type mixer disposed downstream of the inlets and having a stirring shaft rotated by a flow of raw water of the flow pipe, a mixture of carbon dioxide gas and sodium hypochlorite solution; And
A hypochlorous acid water outlet located on the other end side of the flow pipe downstream of the pipe type mixer
Wherein the hypochlorous acid solution is added to the hypochlorous acid solution.
The method according to claim 1,
Wherein the pipe type mixer includes a plurality of mixing pipes arranged in parallel in the same direction as the flow direction and the diameter of each mixing pipe is narrower than the diameter of the flow pipe and the stirring shaft is provided therein Hypochlorous acid water importer.
The method according to claim 1,
Wherein the stirring shaft is provided with a helical blade arranged along an outer circumferential surface of a shaft arranged in the same direction as the flow direction and the helical blade is rotated in the direction opposite to the upstream side and the downstream side of the shaft in accordance with the rotation of the shaft And the like.
The method according to claim 1,
The pipe-type mixer has a structure in which the flow tube flow is firstly dispersed in a plurality of paths on the upstream side thereof, then is secondarily dispersedly introduced into and mixed with a plurality of mixing tubes in a plurality of mixers connected to the respective paths, And is output to a single flow pipe via a plurality of paths and merged.
The method according to claim 1,
In an embodiment, the acidity of the hypochlorous acid water discharged to the downstream side of the piped mixer is in a pH range of 5 to 6.5, and a hypochlorous acid concentration thereof is in a range of 50 to 200 ppm.

Images