KR20120082982A - System of disinfecting air in indoor sapce where air flow exists and method using same - Google Patents

Abstract

PURPOSE: A sterilizing system and a method of indoor space in which indoor air flow exists is provided to use residual chlorine containing hypochlorous acid having higher sterilizing power, thereby capable of sterilizing residual bacteria and virus regardless of indoor air flow. CONSTITUTION: A sterilizing system and a method of indoor space in which indoor air flow comprises a sterilizing water generating unit, an air flow detecting sensor(170), a sterilizing water spreading unit, and an open and close monitoring sensor. The sterilizing water generating unit generates sterilizing water containing hypochlorous acid through electrolysis of water containing chlorine. The air flow detecting sensor detects direction of indoor air flow. The sterilizing water spreading unit spreads more sterilizing water on an upper part and spreads less sterilizing water on a lower part. The open and close monitoring sensor detects opening or closing of an opened region in an indoor space. In case detecting opening/closing of the opened region, the sterilizing water spreading unit spreads sterilizing water.

Description

Air sterilization system of indoor space with indoor air flow and its method {SYSTEM OF DISINFECTING AIR IN INDOOR SAPCE WHERE AIR FLOW EXISTS AND METHOD USING SAME}

The present invention relates to an air sterilization system of an indoor space with indoor air flow, and more particularly, by using residual chlorine containing hypochlorous acid to effectively sterilize bacteria and viruses remaining in the air even if there is an air flow in the indoor space. The present invention relates to an air sterilization system of an indoor space.

Infectious diseases are secondarily infected by contact or by bacteria or viruses that float in the air. In general, secondary infection caused by contact can be prevented to some extent by avoiding contact with a diseased person or livestock.However, a disease caused by a bacteria or virus suspended in the air may release bacteria from the infected person or livestock. There is a problem that is very difficult to prevent because it causes tea infection.

For this reason, for example, in the case of avian influenza virus, in order to prevent secondary infection of adjacent birds, all the pheasants, ducks, chickens, and the like, which have diseased or may be caught, are killed at once.

Therefore, there is an urgent need for a method to more effectively sterilize bacteria and viruses that cause infection while floating in the air.

The present invention to solve the above problems, by using a residual chlorine containing hypochlorous acid provides an air sterilization system of the indoor space that can effectively sterilize bacteria and viruses remaining in the air even if the air flow in the indoor space. It is for that purpose.

Above all, the present invention sterilizes bacteria or viruses remaining in the air by applying a minimal sterilizing solution using residual chlorine containing hypochlorous acid, which has high sterilizing power but sterilization power is rapidly reduced by a short half-life after being manufactured. For other purposes.

Through this, the present invention aims to sterilize bacteria or viruses causing disease in the air of the indoor space while continuing to live daily life without being wet with sterile water in the indoor space.

In the present invention, even if the wind is blowing in the indoor space where people and livestock live, and the wind flows from the outside air, bacteria and viruses in the air flowing from the outside air are consistently irrespective of the wind direction and wind speed. Sterilization is another object.

In order to achieve the above object, the present invention provides an indoor air sterilization system in an indoor space, comprising: a sterilizing water generating unit for electrolyzing water containing chlorine to generate sterilizing water containing hypochlorous acid; An air flow sensor for detecting an air flow inside the indoor space; A sterilizing water application unit for spraying or spraying more sterilizing water on the upstream side of the internal air flow detected by the airflow detecting sensor than on the downstream side of the wind; It provides an indoor air sterilization system comprising.

This means that even if the residual air flows through a window or the like in a hospital or a barn, which is vulnerable to a virus that causes disease, it detects the direction of the air flow inside the indoor space and provides more sterilization water upstream. By applying in the form of particles and by applying less sterilizing water on the downstream side, the particles of the sterilizing water sterilize the bacteria or viruses floating in the air, so that the bacteria or viruses remaining in every corner of the air in the indoor space even if the wind direction changes frequently In order to be able to sterilize.

At this time, the air flow sensor is configured to measure the air flow rate in the interior of the indoor space, through the sterilizing water application unit as the speed of the air flow in the indoor space detected by the air flow sensor increases The supply amount of the sterilizing water to be applied is increased. Through this, even if the wind intensity in the indoor space fluctuates particles of sterilized water reaches every corner of the indoor space to sterilize bacteria and viruses in the air.

And, including the opening and closing detection sensor for detecting the opening and closing of the open area of the indoor space, and if the open area is detected by the opening and closing detection sensor, the sterilizing water application unit to apply sterilization water It is composed. This is because when any one of the windows of the indoor space is opened, bacteria or viruses causing disease can be introduced while the wind is introduced from the outside, and at this time, the sterilizing water can be applied to sterilize the indoor space more efficiently.

On the other hand, as the speed of the air flow increases, the size of the particles of the sterilizing water applied through the sterilizing water applying unit increases, so that the particles of the sterilizing water are blown in the direction of the flow of the wind to sterilize bacteria or viruses in the air. Can solve the problem that can not.

More specifically, the sterilizing water applying unit may apply the sterilizing water in the form of a spray, or may be applied in the form of automizing by operating the sterilizing water by a vibrator. In general, since the size of the sterilizing water particles when sprayed or sprayed in the form of a spray is largely formed in the size of several tens of micrometers to several hundred micrometers, it is effective in the form that is applied when the wind is blowing to some extent in the indoor space.

In addition, the atomizing method of the atomizing type is fine because the particle size of the sterilizing water is several tens of micrometers to several micrometers, it is preferable to apply when the wind is weaker or hardly blown than the predetermined. If you apply sterilized water with particles as small as possible, even if the same amount is applied, it can be spread more widely in the air of the indoor space. Therefore, the bacteria and viruses in the air are prevented by preventing the sterilized water particles from excessively increasing the humidity in the indoor space. It can be sterilized more effectively.

Thus, the sterilizing water applying unit may apply the sterilizing water in the form of a spray and may be selectively or together applied in the form of automating. The sterilizing water application unit may apply the sterilizing water at all times according to the wind direction or the wind speed, but may also apply the sterilizing water according to the wind direction or the wind speed at a predetermined cycle.

The sterilizing water applying unit is configured to apply the sterilizing water by dividing by the area of the indoor space.

On the other hand, a pH sensor for measuring the pH of the sterilized water generated by the sterilized water generating unit; An acid injector for injecting acid into the sterilizing water generating unit when the pH of the sterilizing water is detected by the pH sensor to be greater than a predetermined value; In addition, when the pH value of the sterilized water is not maintained within a predetermined range, the pH value of the sterilized water generated by injecting acid is maintained at a weak acidity to neutrality. Through this, the residual chlorine contained in the generated sterilized water has a high sterilizing power even if it contains the same residual chlorine by increasing the content ratio of hypochlorous acid.

And a residual chlorine measuring sensor for measuring a concentration of residual chlorine in the sterilizing water in a sterilizing water supply pipe for supplying sterilizing water from the sterilizing water generating unit to the sterilizing water applying unit; In addition, the residual chlorine measurement sensor may be configured to perform additional electrolysis by the electrode disposed in the sterilizing water supply pipe when the residual chlorine concentration is lower than a predetermined value.

In addition, the sterilizing water supply pipe chlorine gas measuring sensor for measuring the concentration of chlorine gas contained in the sterilizing water; In addition, if the concentration of the chlorine gas generated during the electrolysis process for producing the sterilization water is higher than the predetermined value by the chlorine gas measuring sensor by not performing additional electrolysis at the electrode disposed in the sterilization water supply pipe, The content of chlorine gas which is harmful to human body or livestock in the sterilization water is kept below a certain amount.

Similarly, a hydrochloric acid measuring sensor for measuring the concentration of hydrochloric acid contained in the sterilizing water in the sterilizing water supply pipe; In addition, if the concentration of hydrochloric acid generated during the electrolysis process for preparing the sterilization water is higher than the predetermined value by the hydrochloric acid measuring sensor, by performing an additional electrolysis at the electrode disposed in the sterilization water supply pipe, the sterilization water The amount of hydrochloric acid harmful to humans or livestock is kept within a certain amount.

The indoor space is provided with an open area made of a window or an opening / closing tent, etc. through which the outside air can be selectively introduced, and the air flow in the indoor space may be caused by the outside wind. Alternatively, the air flow in the indoor space may be caused by an air conditioning facility such as an air conditioner or a fan.

The indoor space may be any one of a barn and a medical facility space. Through this, when the indoor space is a medical facility space, it is possible to prevent the respiratory infections of patients suffering from the disease, and in the case of cattle, horses, chickens, ducks, etc. to prevent the transmission of respiratory diseases safely. have.

On the other hand, according to another field of the invention, the present invention is a method for sterilizing indoor air of an indoor space having an open area, the sterilizing water generation step of generating a sterilized water containing hypochlorous acid by electrolysis of water containing chlorine; ; An opening and closing detection step of detecting whether the open area is opened or closed; In the opening / closing detection step, when the open area is detected as being changed from the closed state to the open state, applying the sterilizing water into the indoor space; It provides a room air sterilization method comprising a.

At this time, the wind direction detection step for detecting the air flow in the interior space; The upstream side of the sensed internal air flow may further comprise a sterilizing water application step of applying more sterilizing water in the form of particles than on the downstream side of the wind.

Here, the sterilizing water applying step includes applying sterilizing water into the indoor space with the sterilizing water particles generated by spraying the sterilizing water.

Additionally or alternatively, the method may include applying the sterilizing water into the indoor space with the sterilizing water particles generated by operating the sterilizing water as a vibrator and automizing the small droplets.

At this time, the sterilizing water applying step, the particle size of the sterilizing water applied on the upstream side through the sterilizing water applying unit as the speed of the air flow in the indoor space increases, or the amount of sterilizing water applied To increase. In this case, the sterilizing water application step may not apply the sterilizing water in some areas downstream of the sensed internal air flow.

As described above, the present invention includes a sterilizing water generating unit for generating sterile water containing hypochlorous acid by electrolyzing water containing chlorine; An air flow sensor for measuring air flow in the interior space; A sterilizing water application unit for spraying or spraying more sterilizing water on the upstream side of the internal air flow detected by the airflow detecting sensor than on the downstream side of the wind; It is configured to include a window, such as a window, etc., even in the interior of the hospital vulnerable to the virus causing the disease in the environment of the indoor air flow, even in the indoor space in the barn, the direction of the air flow inside the indoor space is more upstream By applying sterilizing water in the form of particles and by applying less sterilizing water on the downstream side, the particles of the sterilizing water sterilize bacteria or viruses floating in the air, so that even if the direction of the wind fluctuates from time to time, Provided is an indoor air sterilization system, which can sterilize bacteria or viruses.

That is, the present invention provides an air sterilization system of an indoor space that can effectively sterilize bacteria and viruses remaining in the air even if there is an air flow in the indoor space using residual chlorine containing hypochlorous acid having high sterilizing power.

On the other hand, hypochlorous acid has a high sterilization power, but after being manufactured, sterilization power is rapidly decreased by a short half-life. The beneficial effect of sterilizing bacteria or viruses remaining in the air without being too high is obtained.

In addition, the present invention sterilizes to every corner of the air in the indoor space despite the wind in the indoor space, even if the air flow by the outside air or air conditioning facility is in the indoor space without continuously applying the sterilizing water in the indoor space By supplying the water to reach, an advantageous effect of providing an environment for completely sterilizing bacteria or viruses in the air can be obtained.

1 is a view showing an air sterilization system of an indoor space in the presence of air flow according to an embodiment of the present invention;
FIG. 2 is a view showing an air sterilization system in a state where the air flow is weak or no in the indoor space of FIG.
3 is a diagram showing the detailed configuration of the sterilizing water generating unit and the sterilizing water applying unit;
4 is a cross-sectional view taken along the line IV-IV of FIG. 3.
5 is a perspective view showing the configuration of the electrode of FIG.
FIG. 6 is a cross-sectional view taken along the cutting line VI-VI of FIG. 5.
FIG. 7 is a flowchart sequentially illustrating a method of sterilizing air in an indoor space using the air sterilization system of FIG.
8 is a graph showing the relationship between the form and pH of free chlorine in water at 20 ° C. and 100 mg / l of dissolved substance.

Hereinafter, with reference to the accompanying drawings will be described in detail the air sterilization system 100 of the indoor space according to an embodiment of the present invention. In the following description, well-known functions or constructions are not described in detail to avoid obscuring the subject matter of the present invention.

1 is a view showing an air sterilization system of an indoor space in the presence of air flow in accordance with an embodiment of the present invention, Figure 2 is an air sterilization system in a state where the air flow in the room of FIG. 3 shows a detailed configuration of the sterilizing water generating unit and the sterilizing water applying unit, FIG. 4 is a sectional view taken along the cutting line IV-IV of FIG. 3, and FIG. 5 is a configuration of the electrode of FIG. 6 is a sectional view taken along the line VI-VI of FIG. 5, FIG. 7 is a flow chart sequentially illustrating a method of air sterilization of an indoor space using the air sterilization system of FIG. 1, and FIG. 8 is a residual chlorine according to pH. It is a graph showing the content ratio of.

As shown in the figure, the air sterilization system 100 of the indoor space according to an embodiment of the present invention, the sterilizing water application unit 110 for applying the sterilizing water (10s) in the form of small particles in the interior space (10c) ), A pH adjusting unit for adjusting the pH value of the sterilizing water generated by the sterilizing water generating unit 120 and the sterilizing water generated in the indoor space 10c to a predetermined range ( 130 and a sterilizing water transfer unit 140 having a sterilizing water supply pipe 141 for supplying the sterilizing water generated by the sterilizing water generating unit 120 to the sterilizing water applying unit 110 and the sterilizing power of the sterilizing water. When it is detected that the degradation is sterilized water is transmitted through the sterilization water supply pipe 140, while the second sterilization water generating unit 150 to further generate residual chlorine, sterilized water transmitted through the sterilization water supply pipe 150 Sterilizing water check sensor unit 160 for detecting the amount of hydrochloric acid, chlorine gas and residual chlorine in the And, it consists of an air flow sensor 170 for detecting the wind direction and wind speed of the air flow (w) in the indoor space (10c).

The indoor space 10c is a space surrounded by the side wall 11 and the ceiling 12, and includes not only all the homes, hospitals, schools, offices, airports, underground spaces, etc., but also cattle, horses, pigs, This includes all stalls and warehouses where chickens, ducks, and pheasants are kept. That is, the indoor space 10c is not only caused by an air flow w in the room by the open areas 11w and 11w 'such as a window that is selectively opened, but also by an air conditioning facility such as an air conditioner or a fan. This includes all cases where air flow is caused indoors.

The sterilizing water applying unit 110 applies the sterilizing water (10s) generated in the sterilizing water generating unit 120 in the air of the indoor space (10c) in the form of small particles of several micro to several hundred micro.

When there is an air flow w in the indoor space 10c, the fine sterilizing water particles s move along the air flow w of the indoor space 10c as shown in FIG. Sterilize bacteria and viruses in the air. When the open areas 11w and 11w 'such as the window are closed by the window 11wc or the air conditioner is stopped, the air flow w in the indoor space 10c is weak or absent. The fine sterile water particles s 'are sterilized by bacteria or viruses in the air in the path of the particles s' while descending in the direction of gravity as shown in FIG.

In order to completely eradicate bacteria or viruses remaining in the air in the indoor space 10c, it is necessary to always reach the sterilizing water uniformly throughout the interior space 10c. To this end, the air disinfection system 100 of the indoor space according to an embodiment of the present invention detects the wind direction and the wind speed of the air flow (w) in the indoor space (10c) by the air flow sensor 170, the air On the upstream side of the internal air flow w detected by the flow sensor 170, more sterilizing water is applied than on the downstream side of the wind.

More specifically, as shown in Fig. 1, when the wind w is blowing hard in the interior space 10c, the air flow w is located on the upstream side 10E, 10D and the downstream side 10A, 10B. When the sterilizing water 10s is applied in the same manner in the sterilizing water applying unit 110 in the located area, the sterilizing water applied on the downstream side of the air flow w may go out through the open area 11w 'on the downstream side. It may not be used for sterilizing bacteria or viruses in the air in the indoor space, and the sterilizing water applied upstream of the air flow (w) flows downstream by the internal air flow (w), so that sufficient sterilization is not performed. A problem arises.

Therefore, the present invention is controlled by the air flow sensor 170 so that the higher the wind speed in the indoor space (10c) is sprayed at a higher pressure than the sterilized water applied from the sterilizing water application unit 110. Through this, the sterilizing water applied to the sterilizing water applying unit 110 despite the high wind speed can be sterilized by contacting bacteria or viruses remaining in the air by moving downward through the wind.

In addition, the sterilizing water applying unit 110 according to the present invention, the sterilizing water applied on the upstream side of the air flow (w) has a larger amount of sterilization while having larger particles than the sterilized water applied on the downstream side. The water is sprayed in the form of a spray, and the sterilizing water applied on the downstream side of the air flow w is coated with a smaller amount of sterilizing water than the sterilizing water applied on the upstream side, thereby opening the downstream side of the air flow w. It is possible to completely sterilize bacteria or viruses remaining in the air, while minimizing the amount lost through region 11w '.

On the other hand, in the drawing, the open area (11w, 11w ') is formed of two and the air flow sensor 170 is provided with an example of the configuration, but the number of the open area (11w, 11w') is increased, the interior space (10c) In this case, since the air flow direction is inconsistent and turbulent components are generated, in this case, the air flow direction sensor and the air flow direction in the indoor space 10c are found by installing a plurality of air flow detection sensors 170, and in the area of the indoor space 10c. It may therefore be configured to spray sterile water in large quantities and / or high pressure locally and to spray sterile water in small amounts for another area.

In addition, the air flow w in the indoor space 10c may be changed at any time due to the draft caused by the open area 11w. Therefore, the sterilizing water applied by the sterilizing water applying unit 110 is partitioned by the area of the indoor space 10c so that the size, application amount and coating pressure of the particles of the sterilizing water 10s change from time to time.

In addition, the application of the sterilizing water in the form of fine particles in the interior space 10c may be applied continuously in the event of an epidemic, but at predetermined intervals to prevent excessive humidity in the interior space 10c. It may be applied intermittently.

When the open areas 11w and 11w 'of the interior space 10c are closed and there is little air flow in the interior space 10c, the sterilizing water 10s applied as shown in FIG. s') descended along. Therefore, in this case, since the air of the indoor space 10c does not escape to the outside by the outside air, the sterilization applied by the sterilizing water applying unit 110 to maintain the humidity of the indoor space 10c in an appropriate range. The water is applied with finely sized particles having a diameter of several hundred nanometers to several tens of microns. To this end, the sterilizing water applying unit 110 is sprayed in the form of automizing the sterilizing water by vibrating the vibrator at ultrasonic or high frequency. Through this, it is possible to effectively sterilize bacteria or viruses remaining in the entire air of the indoor space 10c, while minimizing the amount of sterilizing water to be applied, and the amount of the sterilizing water staying in the air of the indoor space 10c It is minimized and has little effect on humidity.

On the other hand, the open areas 11w and 11w 'may be opened or closed only by a manager, but may be opened or closed by any person or by itself or automatically controlled. When the open areas 11w and 11w 'are in the closed state, since there is little air flow inside the interior space 10c, even a small amount of sterilization water can be sprayed to obtain a sufficient sterilization effect. However, when one or several open areas 11w and 11w 'are opened, bacteria or viruses causing disease are introduced together with the outside air before the airflow sensor 170 detects airflow. Therefore, open / close detection sensors 13 are installed in the open areas 11w and 11w 'to detect whether they are opened or closed, and when the open areas 11w and 11w' are opened, sterilized water is applied to the open areas 11w and 11w '. More sterilizing water is applied compared to the area. To this end, it is effective that various types of opening and closing detection sensors 13 are installed in the open areas 11w and 11w 'to physically detect or optically detect whether they are opened by the opening and closing means 11wc such as a window. .

The sterilizing water applying unit 110 is an applicator partitioned into a plurality of segments to apply for each area (10A, 10B, 10C, 10D, 10E) of the interior space (10c) as shown in Figs. 111, 112, 113, ..., 119). Accordingly, even one long applicator (111, 112, 113, ..., 119) is sprayed with fine-sized particles according to the partitioned areas (A, B, C) or a diameter of several hundred micrometers to 2-3 mm It can be sprayed into particles of large size.

To this end, as shown in FIG. 3, each segment of each of the coating bodies 111, 112, 113,..., 119 is controlled so that the sterilizing water supplied from the sterilizing water generating unit 120 may be selectively introduced. A valve 143 is provided. For example, as shown in Fig. 1, when the wind blows from one side open area 11w and an internal flow w is formed, the area indicated by 10E of the indoor area is opened by opening the valves indicated by 1431a, 1431b, 1431c. Sterilization water is sprayed in a spray form at high pressure on all segments of the first coating body 111. At the same time, the valve 1432c, which supplies sterilization water to one segment of the second coating body 112 located slightly away from the open area 11w, is opened by 80% and lower than the area indicated by 10E. Spray the sterilization water under pressure. Then, the third coating body 113 located in the area indicated by 10A adjacent to the other open area 11w 'opens the valve by only about 50% to reduce the amount of sterilizing water applied.

As described above, the sterilizing water applying unit 110 is divided into separate coating bodies or separate segments by the regions 10A, 10B, ..., 10E of the indoor space 10c, respectively, and the particle size, coating amount and spraying of the sterilizing water, respectively. The pressure can be configured to be controlled differently. Although not shown in the drawings, the plurality of coatings 111, 112, 113,..., 119 constituting the sterilizing water applying unit 110 may be automatically atomized with a composition that applies sterilizing water in a spray form and fine particles. It includes all the spraying configuration, and is applied in the interior space with the appropriate particle size according to the wind direction or wind speed.

The sterilizing water generating unit 120 includes a sterilizing water generating container 121 containing a solution 120w containing chlorine, and an electrode 122 installed in a state of being immersed in the solution 120w of the sterilizing water generating container 121. And discharging the sterilized water generated from the sterilizing water generating container 121 through the power supply unit 123 for supplying DC power to the electrode 122 through the power supply line 123c and the sterilizing water supply pipe 140. It is composed of a solution supply pipe 124 for supplying a solution (120w) containing chlorine in the sterilizing water generating container 121.

Here, the sterilizing water generating container 121 may be provided with a heating means for heating to approximately 60 ℃ to 100 ℃ or more in order to increase the sterilizing power of the generated sterilizing water. Through this, the sterilizing water generated in the sterilizing water generating unit 120 may have a higher sterilizing power. Here, the heating means is possible by winding a heating wire (not shown), it may be installed so that the heating wire is wound around the sterilizing water supply pipe 141 to maintain a constant temperature of the sterilizing water. Through this, it is possible to implement a high sterilizing power by maintaining a constant temperature of the sterilizing water, it is possible to easily perform the process of generating and applying sterilizing water without freezing even in the winter when the virus activity is active.

As shown in FIG. 5, the electrode 122 protrudes from the positive electrode plate 122a and the negative electrode plate 122b to protrude from the positive electrode plate 122ax and the negative electrode protrusion 122bx. Even though a small amount of current is applied, more electric charges are condensed between the anode protrusion 122ax and the cathode protrusion 122bx that face each other, thereby facilitating the electrolysis reaction to further reduce residual chlorine including hypochlorous acid. It can also be generated by current. These protrusions 122ax and 122bx are formed of platinum or coated with platinum to promote the production of residual chlorine.

When the electrode 122 is used for a long time, platinum of the protrusions 122ax and 122bx is consumed, so as shown in FIG. 6, the grooves to be fixed to the electrode plates 122a and 122b as shown in FIG. 122g) is formed, and it is comprised so that a platinum protrusion 122u may fit in this groove 122g and replace. In addition, although a current may be supplied to the entirety of the positive electrode plate 122a and the negative electrode plate 122b, the positive electrode plate 122a and the negative electrode plate 122b are formed of a non-conductor, and inserted into the groove 122g. A current supply line (not shown) may be formed in each of the electrode plates 122a and 122b so that a current is applied only to the losing electrode protrusion 122u.

When a direct current is applied to the negative electrode protrusion 122bx and the positive electrode protrusion 122ax spaced apart by a predetermined distance, the solution 120w between the negative electrode protrusion 122bx and the positive electrode protrusion 122ax is electrolyzed. At this time, oxidants such as ozone (O ₃ ), hydrogen peroxide (H ₂ O ₂ ), OH radicals, hypochlorous acid (HOCl) are produced, and microorganisms, bacteria, bacteria, etc. are sterilized by the oxidants. The mechanism of generating hypochlorite having high sterilizing power by electrolysis is achieved by the following steps (1) to (5).

(1) The path through which ozone is produced begins with the electrolysis of water (H ₂ O) in a solution containing chlorine and finally ozone is formed through the following process in which O and O ₂ are combined.

^{_{H 2 O -> H + +}} (OH) ads + e -

_{(OH) ads -> (O} ) ads + H + + e -

_{2 (OH) ads -> O} 2 + 2H + + 2e -

2 (O) _ads- > O ₂

(O) _ads + O _2- > O ₃

(2) Hydrogen peroxide is produced by the direct route by the electrolysis of oxygen and the indirect route produced by the combination of OH radicals, an intermediate product produced by ozone decomposition. In other words,

O ₂ + e ^-- > O ₂ ^?-

_{^{O 2 + 2H + + 2e -}} -> H 2 O 2

With a direct path such as

OH? + OH? -> H ₂ O ₂

Is generated by an indirect path such as

(3) HOCl reacts with H ₂ O to form HOCl after Cl ⁻ ions in water bind with Cl ₂ . In other words,

_{^{2Cl - -> Cl 2 + 2e}} -

^{_{2H 2 O + 2e - ->}} H 2 + 2OH ^-

_{Cl 2 + H 2 O ->} HOCl + H + + Cl -

At this time, a small amount of chlorine gas is produced as an intermediate product, and a small amount of hydrochloric acid is also produced.

(4) OH radicals are instantaneously produced and disappeared, so they cannot be measured directly, but when ozone is present in water, it reacts with OH ^- or a counterbase of hydrogen peroxide to form a radical chain cycle. Produces OH radicals.

O ₃ + OH-> Radial Chain Reaction-> OH?

O ₃ + HO ^{₂ -} (H ² conjugate base of O ₂₎ -> radical chain reaction -> OH?

(5) Microorganisms (microorganisms) present in the solution (120w) are inactivated or removed by the oxidants produced, the next microorganism is removed by electrosorption, the next microorganics The reaction with e- is removed by direct electrolysis.

In other words, for Microorgainsm

M (Microorganism)-> Electrosorption-> Inactivation

Also,

M (Microorganism) + O _3- > Inactivation

M + OH? -> Inactivation

M + HOCl-> Inactivation.

And about Microorganics,

M (Microorganics) + e--> M-

Also,

M (Microorganics) + O _3- > Product

M + OH? -> Product

M + HOCl-> Product

That is, during the electrolysis, the oxidation and sterilization is performed smoothly by the mixed oxidants (O ₃ , H ₂ O ₂ , HOCl, OH radicals) generated in the process of (1) to (5), After the electrolysis, residual chlorine such as hypochlorous acid (HOCl), which has high sterilizing power, remains, and high sterilizing power is maintained.

Herein, the solution 120w containing chlorine refers to a solution containing a component capable of freeing chlorine ions, and for example, brine may be used.

Electrolysis of the solution 120w containing the chlorine component produces residual chlorine of the component shown in FIG. 8 depending on the pH value of the solution. In other words, a highly toxic chlorine gas (Cl ₂ ) is generated in a strong acid solution, and in an alkaline solution, bactericidal power remains as hypochlorous acid (OCl ⁻ ), which is about 1/80 of hypochlorous acid (HOCl). Therefore, in order to maximize the amount of hypochlorous acid (HOCl) that is harmless to the human body and has high sterilizing power, it is necessary to maintain a pH value in a weakly acidic to neutral range.

To this end, the pH control unit 130 is provided with a pH sensor 131 for measuring the pH value of the solution (120w) in the sterilizing water generation container 121, the solution (120w) by the pH sensor 131 When the pH is greater than 7.0 to 8.0 having alkalinity, by supplying an acid solution (aw), the sterilizing water generated by the sterilizing water generating unit 120 increases the content ratio of hypochlorous acid (HOCl) harmless to the human body while having high sterilizing power. Can be.

The sterilizing water delivery unit 140 is a sterilizing water supply pipe 141 and a sterilizing water supply pipe 141 which is a passage for transferring the sterilizing water generated in the sterilizing water generating unit 120 to the sterilizing water applying unit 110. A pump 142 for delivering sterilizing water and a plurality of control valves 143 installed to selectively supply sterilizing water to each segment (A, B, C) of the sterilizing water application unit (110).

The sterilizing water supply pipe 141 is provided with a residual chlorine measuring sensor 161 for measuring the residual chlorine concentration of the sterilizing water being supplied. Therefore, when some of the residual chlorine, which determines the sterilizing power of the sterilizing water, disappears due to the fact that the sterilizing water generated from the sterilizing water generating unit 110 is not immediately used for air sterilization of the indoor space 10c, the sterilizing water supply pipe Electrolysis is performed again by the second sterilizing water generating unit 150 of FIG. 5 installed in 141 to be applied by the sterilizing water applying unit 120 while the sterilizing power of the sterilizing water is maintained at a constant level.

Here, the second sterilization water generating unit 150 is supplied with DC power from the power supply unit 152 through the power supply line 152c to the electrode 151 formed with protrusions facing each other in the sterilization water supply pipe 141, Electrolysis produces residual chlorine containing hypochlorous acid.

However, the chlorine gas measuring sensor 162 and the hydrochloric acid measuring sensor 163 are provided in the sterilizing water supply pipe 141, and the chlorine gas and hydrochloric acid contained in the sterilizing water being transmitted through the sterilizing water supply pipe 141. Monitor the concentration in real time. This is because a small amount of chlorine gas or hydrochloric acid is produced as an intermediate product in the process of generating residual chlorine by electrolysis, and this is to prevent the content from increasing so much that it is harmful to the human body. When the concentration of hydrochloric acid reaches 4.7ppm to 5ppm or the concentration of chlorine gas reaches 0.7ppm, the chlorine gas measuring sensor 162 and the hydrochloric acid measuring sensor 163 may be harmful to livestock or people in the indoor space. When the chlorine gas or hydrochloric acid in the sterilized water reaches a predetermined concentration by the operation of the second sterilization water generating unit 150 is stopped.

On the other hand, although not shown in the drawings, according to another embodiment of the present invention, the concentration of hydrochloric acid or chlorine gas, which is an intermediate product, is also detected in the vessel 121 of the sterilizing water generating unit 120, and the concentration is a predetermined value. If exceeded, it may be configured to stop the electrolysis.

Hereinafter, a method (S100) of operating an air sterilization system of an indoor space according to an embodiment of the present invention configured as described above will be described in detail with reference to FIG. 7.

Step 1 : First, a solution 120w containing chlorine is contained in the container 121 of the sterilizing water generating unit 120 so that the electrode 122 is submerged, and the DC power is supplied from the power supply 123 to the electrode 122. By applying to the electrolysis to generate a sterile water in which residual chlorine containing hypochlorous acid in the solution contained in the container 121 is generated (S110).

Step 2 : At this time, in order to increase the component ratio of hypochlorous acid which is harmless to human body among residual chlorine and has high sterilizing power, the pH value of the solution 120w contained in the container 121 is measured in real time with a pH sensor 131 to adjust the pH value. In this alkaline state, an acid (aw) is supplied to keep the solution 120w contained in the container 121 between weakly acidic and neutral. When a solution containing chlorine is supplied to a container, drinking water (or constant) such as tap water and ground water is mixed with a component that generates chlorine ions, and the pH value of the solution 120w may vary depending on the state of the drinking water. Because there is. As a result, the sterilizing water generated by the sterilizing water generating unit 120 has a constant pH value and contains residual chlorine having a high component ratio of hypochlorous acid (S120).

Step 3 : Then, the sterilizing water generated in the sterilizing water generating unit 120 is driven by the pump 142 to move to the sterilizing water applying unit 110. At this time, when the residual chlorine concentration is lower than the predetermined concentration by the residual chlorine measuring sensor 161 provided in the sterilizing water supply pipe 141, the DC power supply to the electrode 151 provided in the sterilizing water supply pipe 141. Introduce additional electrolysis (S130).

In the preferred embodiment of the present invention, the sterilized water generated in the sterilized water generating unit 120, the second sterilized water generating unit 150 installed in the sterilized water supply pipe 141, but the configuration for performing an additional electrolysis, If it is necessary to apply a large amount of sterilizing water at once, the solution containing chlorine is supplied directly to the sterilizing water supply pipe 141 to generate residual chlorine by the second sterilizing water generating unit 150 to immediately disinfect the sterilizing water. It may be manufactured and immediately applied in the interior space 10c.

Step 4: Next, the wind speed and the wind direction of the air flow w in the indoor space 10c to be sterilized are sensed by the air flow sensor 170 (S140). Then, more sterilizing water is applied on the upstream side of the internal air flow w detected by the airflow sensor 170 than on the downstream side of the wind (S150).

That is, as the wind speed in the indoor space 10c is increased by the air flow sensor 170, the sterilizing water applied by the sterilizing water applying unit 110 is controlled to be sprayed at a higher pressure, thereby applying sterilizing water despite the high wind speed. The sterilizing water applied to the unit 110 may be sterilized by contacting bacteria or viruses remaining in the air by moving downward through the wind.

In addition, the sterilizing water applying unit 110 according to the present invention sprays a larger amount of sterilizing water while having a larger particle than the sterilizing water applied on the upstream side of the air flow w. The sterilizing water sprayed in the form and applied on the downstream side of the air flow w is coated with a smaller amount of sterilizing water than the sterilizing water applied on the upstream side, so that the open area on the downstream side of the air flow w ( 11w ') can completely sterilize bacteria or viruses that remain in the air while minimizing the amount lost.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

100: indoor air sterilization system 110: sterilization water application unit
120: sterilizing water generating unit 130: acid solution supply unit
131: pH sensor 140: sterilization water delivery unit
150: second sterilization water generating unit 161: residual chlorine measuring sensor
162: chlorine gas measuring sensor 163: hydrochloric acid measuring sensor
170: air flow sensor

Claims (23)

In an indoor air sterilization system in an indoor space,
A sterilizing water generating unit for electrolyzing water containing chlorine to produce sterilizing water containing hypochlorous acid;
An air flow sensor for sensing a direction of air flow in the interior space;
A sterilizing water application unit for applying more sterilizing water at an upstream side of the internal air flow detected by the airflow sensor than at a downstream side of the wind;
Indoor air sterilization system comprising a.
The method of claim 1,
Including the opening and closing detection sensor for detecting the opening and closing of the open area of the indoor space,
When the open area is detected by the opening and closing the sensor to open and close, the sterilizing water applying unit is characterized in that the indoor air sterilization system characterized in that to apply the sterilizing water.
The method of claim 1,
The air flow sensor measures the air flow rate in the interior space, and the higher the speed of the air flow detected by the air flow sensor, the higher the pressure of sterilized water applied through the sterilizing water application unit. Indoor air sterilization system, characterized in that is applied while spraying.
The method of claim 1,
The air flow sensor is configured to measure the air flow rate in the interior space, the sterilized water applied through the sterilizing water application unit as the speed of the air flow detected by the air flow sensor increases Indoor air sterilization system, characterized in that the size of the particles are increased.
The method of claim 1,
The air flow sensor is configured to measure the air flow rate in the interior space, the sterilized water applied through the sterilizing water application unit as the speed of the air flow detected by the air flow sensor increases Indoor air sterilization system, characterized in that more coating.
The method according to any one of claims 1 to 5,
The sterilizing water applying unit may include any one or more of a composition for applying the sterilizing water in the form of a spray, and a composition for applying the autosterizing and operating the sterilizing water by a vibrator. Indoor air sterilization system.
The method according to claim 6,
The sterilizing water application unit includes both a configuration for applying the sterilized water in the form of a spray, and a configuration for applying the sterilized water by an oscillator to apply in the form of automizing;
If the speed of the air flow detected by the air flow sensor is less than a predetermined speed, indoor air sterilization system, characterized in that to apply the sterilizing water only in the form of automation.
8. The method of claim 7,
The sterilizing water application unit includes both a configuration for applying the sterilized water in the form of a spray, and a configuration for applying the sterilized water by an oscillator to apply in the form of automizing;
Indoor air sterilization system, characterized in that to apply the sterilizing water, including the spray form when the speed of the air flow is greater than a predetermined speed by the air flow sensor.
7. The method according to any one of claims 1 to 6,
The sterilizing water applying unit is divided into the area of the indoor space indoor air sterilization system, characterized in that configured to apply the sterilizing water
7. The method according to any one of claims 1 to 6,
A pH sensor for measuring the pH of the sterilizing water generated by the sterilizing water generating unit;
An acid injector for injecting acid into the sterilizing water generating unit when the pH of the sterilizing water is detected by the pH sensor to be greater than a predetermined value;
Indoor air sterilization system, characterized in that it further comprises.
7. The method according to any one of claims 1 to 6,
A second sterilization water generating unit for generating a sterilizing water in the pipe supplied by electrolysis by applying a current to an electrode disposed in the pipe for supplying the sterilizing water from the sterilizing water generating unit to the sterilizing water applying unit;
Indoor air sterilization system, characterized in that it further comprises.
The method of claim 10,
A residual chlorine measuring sensor for measuring a concentration of residual chlorine in the sterilizing water in a sterilizing water supply pipe for supplying sterilizing water from the sterilizing water generating unit to the sterilizing water applying unit;
In addition, the indoor air sterilization system, characterized in that for performing the additional electrolysis by the electrode disposed in the sterilizing water supply pipe when the residual chlorine concentration is lower than a predetermined value by the residual chlorine measuring sensor.
13. The method of claim 12,
A chlorine gas measuring sensor for measuring a concentration of chlorine gas contained in the sterilizing water in the sterilizing water supply pipe;
In addition, if the concentration of the chlorine gas by the chlorine gas measuring sensor higher than a predetermined value, the indoor air sterilization system, characterized in that the additional electrolysis is not performed at the electrode disposed in the sterilizing water supply pipe.
13. The method of claim 12,
A hydrochloric acid measuring sensor for measuring a concentration of hydrochloric acid contained in the sterilizing water in the sterilizing water supply pipe;
In addition, if the concentration of hydrochloric acid by the hydrochloric acid measuring sensor is higher than a predetermined value, indoor air sterilization system, characterized in that the additional electrolysis is not performed at the electrode disposed in the sterilizing water supply pipe.
7. The method according to any one of claims 1 to 6,
The indoor space is an indoor air sterilization system, characterized in that provided with an open area through which the outside air can be introduced.
16. The method of claim 15,
The indoor space is an indoor air sterilization system, characterized in that any one of a barn, a medical facility space.
A method of sterilizing indoor air in an indoor space having an open area,
A sterile water generation step of generating sterile water containing hypochlorous acid by electrolyzing water containing chlorine;
An opening and closing detection step of detecting whether the open area is opened or closed;
In the opening / closing detection step, when the open area is detected as being changed from the closed state to the open state, applying the sterilizing water into the indoor space;
Indoor air sterilization method comprising a.
18. The method of claim 17,
A wind direction detecting step of detecting an air flow in the interior space;
A sterilizing water application step of applying more sterilizing water in the form of particles on the upstream side of the sensed internal air flow than on the downstream side of the wind;
Indoor air sterilization method characterized in that it further comprises.
The method of claim 18, wherein the sterilizing water application step,
Indoor air sterilization method comprising the step of applying the sterilizing water in the indoor space with the sterilized water particles generated by spraying the sterilized water (spray).
The method of claim 17, wherein the sterilizing water application step,
Operating the sterilizing water with a vibrator to apply sterilizing water into the indoor space with sterilizing water particles generated by automizing small droplets.
The method according to any one of claims 18 to 20, wherein the sterilizing water application step,
Indoor air sterilization method characterized in that the particle size of the sterilizing water applied on the upstream side through the sterilizing water applying unit increases as the speed of the air flow in the indoor space increases.
The method of claim 21, wherein the sterilizing water application step,
Not applying sterilizing water in some areas downstream of the sensed internal air flow; Including indoor air sterilization method.
The method according to any one of claims 18 to 20, wherein the sterilizing water application step,
The indoor air sterilization method, characterized in that the application amount of the sterilizing water applied on the upstream side through the sterilizing water applying unit increases as the speed of the air flow in the indoor space increases.

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