KR102498424B1 - Sterilizing apparatus using ultraviolet radiation and method therefor - Google Patents

Abstract

The present invention relates to an ultraviolet-based disinfection device and method. According to an embodiment of the present invention, the ultraviolet ray disinfection device can sterilize fluid based on ultraviolet rays without using chemicals or harmful materials such as mercury.

Description

Ultraviolet disinfection device and method {STERILIZING APPARATUS USING ULTRAVIOLET RADIATION AND METHOD THEREFOR}

The present invention relates to fluid disinfection technology, and more particularly to an ultraviolet-based disinfection device and method.

Recently, the need for distributed self-supporting water management facilities has been emphasized due to the irregularity and locality of rainfall frequency due to abnormal climate. In particular, efforts are being made to develop and commercialize disinfection technologies to solve drinking water problems in remote areas such as islands, coasts, and mountains, where operator-centered safe water supply is practically difficult.

In general, various disinfection methods such as chlorine, ozone, and ultraviolet rays are used for fluid disinfection, but most of them are used together with chemicals, so disinfection by-products may be generated during the disinfection process, and maintenance costs for disinfection equipment are high. There are practical difficulties in using water supply facilities.

In addition, in the case of filtration technology used in small-scale water supply facilities or household water purifiers, disinfection effects can be expected by excluding microorganisms depending on the pore size of the applied membrane, but independent operation due to the formation of a biofilm on the surface of the membrane This is difficult, and there is a problem in that a separate disinfection means must be used together.

The background art of the present invention is published in Korean Patent Publication No. 10-2017-0028472.

The present invention provides an ultraviolet sterilization device and method capable of sterilizing a fluid based on ultraviolet rays without the use of harmful materials such as chemical injection or mercury.

The present invention provides an ultraviolet ray disinfection device and method that can be used as an alternative water resource in disaster situations or islands and mountainous areas by disinfecting underground water and rainwater using ultraviolet rays.

The present invention provides an ultraviolet ray disinfection device and method capable of improving the biological safety of non-potable water, such as water for water play type waterscape facilities and final effluent water of public sewage treatment facilities.

The present invention provides an ultraviolet ray disinfection device and method capable of blocking infection through inactivation of viruses contained in indoor air of high-risk facilities with inherent possibility of collective outbreaks of respiratory infectious diseases (Corona 19, etc.).

The present invention provides an ultraviolet ray disinfection device and method that can be safely used by blocking exposure of a user's body to a light source or ultraviolet rays irradiated from a light source using an ultraviolet chamber.

The technical problem to be achieved by the present invention is not limited to the above-mentioned technical problem, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. There will be.

According to one aspect of the present invention, an ultraviolet ray disinfection device is provided.

An ultraviolet disinfection device according to an embodiment of the present invention includes a fluid supply unit for supplying an inflowing fluid, a fluid flow sensor unit for detecting the flow of fluid, and a power supply unit for supplying power when a fluid flow signal is received from the fluid flow sensor unit. , The fluid supplied from the fluid supply unit is introduced through the fluid inlet located at the lower end of one side, and the first reaction unit discharging the fluid through the fluid outlet located at the upper end of the other side and located on the other side of the first reaction unit receiving power from the power supply unit It may include a first light source unit that radiates ultraviolet rays to oppose the movement of the fluid.

According to another aspect of the present invention, an ultraviolet sterilization method is provided.

An ultraviolet disinfection method according to an embodiment of the present invention includes supplying fluid flowing from a water supply pipe, detecting the flow of the fluid, supplying power when the flow of the fluid is detected, and receiving power to clean the fluid It may include irradiating a first ultraviolet light against the flow and irradiating a second ultraviolet light against the flow of the fluid by receiving power.

According to an embodiment of the present invention, the ultraviolet sterilization device can sterilize fluid based on ultraviolet rays without using chemicals or harmful materials such as mercury.

According to an embodiment of the present invention, the ultraviolet disinfection device can be used as an alternative water resource in disaster situations or islands and mountainous areas by disinfecting underground water and rainwater using ultraviolet rays.

According to an embodiment of the present invention, the ultraviolet disinfection device can improve biological safety by disinfecting non-potable water such as water for water play type waterscape facilities and final effluent water of public sewage treatment facilities using ultraviolet rays.

According to an embodiment of the present invention, the ultraviolet disinfection device can block infection through inactivation of viruses contained in the indoor air of high-risk facilities where there is an inherent possibility of collective outbreaks of respiratory infectious diseases (such as COVID-19).

According to an embodiment of the present invention, the ultraviolet disinfection device can be safely used by blocking exposure of the user's body to the light source or the ultraviolet light irradiated from the light source using the ultraviolet chamber.

The effects of the present invention are not limited to the above effects, and should be understood to include all effects that can be inferred from the description of the present invention or the configuration of the invention described in the claims.

1 is a perspective view showing an ultraviolet disinfection device according to a first embodiment of the present invention.
Figure 2 is a perspective view showing an ultraviolet disinfection device according to a second embodiment of the present invention.
3 to 7 are diagrams for explaining the reaction part of the ultraviolet disinfection device according to the first embodiment and the second embodiment of the present invention.
8 is a cross-sectional view showing an ultraviolet disinfection device according to a third embodiment of the present invention.
9 and 10 are diagrams illustrating the light source unit of the ultraviolet disinfection device according to the first to third embodiments of the present invention.
11 is a diagram explaining an ultraviolet sterilization method according to a first embodiment of the present invention.
12 is a view for explaining a UV disinfection method according to a second embodiment of the present invention.
13 is a view for explaining a UV disinfection method according to a third embodiment of the present invention.
14 to 17 are diagrams illustrating the disinfection performance of the ultraviolet disinfection device according to the second embodiment of the present invention.

Throughout the specification, when a part is said to be "connected (connected, contacted, combined)" with another part, this is not only "directly connected", but also "indirectly connected" with another member in between. "Including cases where In addition, when a part "includes" a certain component, it means that it may further include other components without excluding other components unless otherwise stated.

Terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "include" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

1 is a perspective view showing an ultraviolet disinfection device according to a first embodiment of the present invention.

Referring to FIG. 1, the ultraviolet disinfection device 10 includes a fluid supply unit 110, a power supply unit 120, a first light source unit 130, a first reaction unit 140, a second light source unit 150, and a second reaction unit. 160 and a fluid flow sensor unit 170.

The fluid supply unit 110 supplies fluid introduced from a public water supply pipe or an indoor or outdoor water storage tank to the first reaction unit 140 .

When receiving a fluid flow signal from the fluid flow sensor 170, the power supply unit 120 supplies power to the first light source unit 130 or the second light source unit 150 according to a preset signal value. Here, when an arbitrarily set time elapses from the last time the power supply unit 120 received the fluid flow signal from the fluid flow sensor unit 170, the power supply unit 120 receives the fluid flow signal from the fluid flow sensor unit 170. Even if it is not received, power is supplied to the first light source unit 130 or the second light source unit 150 according to a predetermined signal value, and the inside of the first reaction unit 140 and the second reaction unit 160 during use of the ultraviolet disinfection device. It can disinfect the fluid held in it.

The first light source unit 130 may have a cylindrical structure provided on one side of a cylindrical housing and coupled to the same diameter as the housing. The first light source unit 130 receives power from the power supply unit 120 according to the fluid flow signal detected by the fluid flow sensor unit and emits first ultraviolet rays. Here, the first ultraviolet light may be ultraviolet light in a wavelength range of 260 to 270 nm. Specifically, the first light source unit 130 is disposed on the other side of the first reaction unit 140 and opposes the flow of the fluid introduced into the first reaction unit 140 through the fluid supply unit 110 to emit first ultraviolet rays. can be investigated Here, when the first light source unit 130 uses ultraviolet light having a wavelength of 230 nm or less, most of the ultraviolet light energy is absorbed by water and may not be suitable for drinking water disinfection, so ultraviolet light having a maximum peak at 265 ± 5 nm may be used.

The first reaction unit 140 may be provided in a cylindrical structure inside the housing and may be coupled to the other surface of the first light source unit. The first reaction unit 140 has a fluid inlet protruding from one lower end, and is configured to react by exposing the fluid introduced through the fluid inlet to ultraviolet rays. A protruding fluid outlet through which fluid purified by the first ultraviolet rays moves may be included on the other side of the top of the first reaction unit 140 . In the first reaction unit 140, fluid is introduced through a fluid inlet on one side of the lower end and discharged through a fluid outlet on the other side of the upper end. Therefore, the fluid sterilization effect can be further improved by configuring the first reaction unit 140 to direct the movement of the fluid toward the first light source unit 130 .

The first reaction unit 140 may further include an outer shell surrounding the first reaction unit and coated with a reflector for reflecting ultraviolet rays on an inner surface.

The second light source unit 150 may have a cylindrical structure provided on the other side of the cylindrical housing and coupled to the same diameter as the housing. The second light source unit 150 receives power from the power supply unit 120 according to the fluid flow signal detected by the fluid flow sensor unit and emits second ultraviolet rays. Here, the second ultraviolet light may be ultraviolet light in a wavelength range of 271 to 285 nm. Specifically, the second light source unit 150 is disposed on one side of the second reaction unit 160 to face the fluid flowing into the second reaction unit 160 through the first reaction unit 140 to emit second ultraviolet light. can be investigated Here, the second light source unit 150 may use ultraviolet light having a maximum peak at 278±7 nm.

The second reaction unit 160 may be provided in a cylindrical structure inside the housing and may be coupled to one side of the second light source unit. The second reaction unit 160 has a fluid inlet protruding from the upper end of the other side, and is configured to react by exposing the fluid introduced through the fluid inlet to ultraviolet rays. A fluid outlet having a protruding shape may be included at a lower end of one side of the second reaction unit 160 , through which fluid purified through the second ultraviolet rays moves. The second reaction unit 160 is configured to allow fluid to flow in through a fluid inlet on one side of the upper end and discharge fluid through a fluid outlet on the other side of the lower end. Therefore, the fluid sterilization effect can be further improved by configuring the second reaction unit 160 to direct the movement of the fluid toward the second light source unit 150 . The fluid inlet and outlet provided in the first reaction unit 140 and the second reaction unit 160 allow the fluid introduced from the fluid supply unit 110 to pass through the first reaction unit 140 and the second reaction unit 160 at all times. It is configured so that it can be discharged by passing through the full water level. The purified fluid discharged through the fluid outlet of the second reaction unit 160 may be provided to the user through the opening/closing device 180 connected to the passage.

The fluid flow sensor unit 170 is provided on one side of a passage connecting the first reaction unit 140 and the second reaction unit 160 to sense the flow of fluid through the fluid flow sensor unit. The fluid flow sensor unit 170 transmits a fluid flow signal to the power supply unit 120 when fluid flow is sensed.

2 is a perspective view showing an ultraviolet ray disinfection device according to a second embodiment of the present invention.

The ultraviolet sterilization device according to the second embodiment of the present invention additionally configures the connection part 145 coupled between the housings in a cylindrical structure so that the fluid discharged through the first reaction part 140 is transferred to the second reaction part 160 to move to

Specifically, the ultraviolet disinfection device 10 according to the second embodiment includes a fluid supply unit 110, a power supply unit 120, a first light source unit 130, a first reaction unit 140, a connection unit 145, and a second light source unit. (150) and a second reaction unit (160).

At this time, the ultraviolet disinfection device 10 may include a fluid flow sensor for detecting the flow of fluid on one side of the first reaction unit 140 and/or the second reaction unit 160, and the power supply unit 120 When a fluid flow signal is received from the fluid flow sensor, power may be supplied to the first light source unit 130 or the second light source unit 150 according to a preset signal value.

Here, when an arbitrarily set time elapses from the last time the power supply unit 120 receives the fluid flow signal from the fluid flow sensor, power is supplied to the first light source unit 130 or the second light source unit 150 according to a preset signal value. can supply

The first light source unit 130 may have a cylindrical structure provided on one side of the cylindrical first housing 101 and coupled to the same diameter as the first housing 101 . The first light source unit 130 receives power from the power supply unit 120 and emits first ultraviolet rays. Here, the first ultraviolet light may be ultraviolet light in a wavelength range of 260 to 270 nm. Specifically, the first light source unit 130 is disposed on the other side of the first reaction unit 140 and opposes the flow of the fluid introduced into the first reaction unit 140 through the fluid supply unit 110 to emit first ultraviolet rays. can be investigated The first light source unit 130 may use ultraviolet light having a maximum peak at 265±5 nm because most of the ultraviolet light energy is absorbed by water when using ultraviolet light having a wavelength of 230 nm or less, which may not be suitable for drinking water disinfection.

The first reaction unit 140 may be provided in a cylindrical structure inside the first housing 101, and one side of the left side adjacent to the first light source unit 130 may be opened. The first reaction unit 140 has a fluid inlet protruding from one lower end of the first reaction unit 140 and is configured to react by exposing the fluid introduced through the fluid inlet to ultraviolet rays.

At this time, the fluid is introduced through the fluid inlet on one side of the lower side of the first reaction unit 140, and the fluid is discharged through the left side close to the first light source unit 130. Therefore, the first reaction unit 140 configures the movement of the fluid toward the first light source unit 130 to maximize the effective residence time for the reaction between ultraviolet rays and microorganisms in the fluid on the surface of the first light source unit 130, thereby increasing the fluid sterilization effect. can be further improved.

The first reaction unit 140 may further include an outer shell surrounding the first reaction unit and coated with a reflector for reflecting ultraviolet rays on an inner surface.

The connection part 145 has a cylindrical structure and is coupled between the first housing 101 and the second housing 102 so that the fluid discharged through the first reaction part 140 moves to the second reaction part 160. do.

The second light source unit 150 may have a cylindrical structure provided on the other side of the cylindrical second housing 102 and coupled to the same diameter as the second housing 102 . The second light source unit 150 receives power from the power supply unit 120 and emits second ultraviolet rays. Here, the second ultraviolet light may be ultraviolet light in a wavelength range of 271 to 285 nm. Specifically, the second light source unit 150 may radiate second ultraviolet rays to face the fluid flowing into the second reaction unit 160 through the connection unit 145 . The second light source unit 150 may use ultraviolet light having a maximum peak at 278±7 nm.

The second reaction unit 160 may be coupled to the connection unit 145 and may be provided in a cylindrical structure inside the second housing 102, and a right side surface adjacent to the second light source unit 150 may be opened. At this time, the second reaction unit 160 introduces fluid through the connection unit 145 and discharges the fluid through a right side surface close to the second light source unit 150 . Therefore, the second reaction unit 160 configures the movement of the fluid toward the second light source unit 150 to maximize the effective residence time for the reaction between ultraviolet rays and microorganisms in the fluid on the surface of the second light source unit 150, thereby increasing the fluid sterilization effect. can be further improved.

A fluid outlet having a protruding shape may be included at a lower end of one side of the second housing 102 , through which fluid purified by the second ultraviolet rays moves. The purified fluid discharged through the fluid outlet of the second housing 102 may be provided to the user through the opening and closing device 180 connected to the passage.

3 to 7 are diagrams explaining the reaction part of the ultraviolet disinfection device according to the first and second embodiments of the present invention.

Referring to FIG. 3 , when a plurality of light sources representing different wavelengths are used, interference due to the application of multiple wavelengths, such as deterioration in disinfection performance and energy loss due to overlapping wavelengths, can be expected. The ultraviolet disinfection device 10 according to the first embodiment of the present invention separates the reaction space into the first reaction part 140 and the second reaction part 160 according to the wavelength of the ultraviolet light, thereby blocking the interference effect in advance to improve the disinfection performance. improve

Referring to FIG. 4 , the first reaction unit 140 and the second reaction unit 160 may use reflectors to minimize absorption and consumption of light energy transmitted from the light source on the surface of the reaction unit. For example, the first reaction unit 140 and the second reaction unit 160 may include polytetrafluoroethylene or aluminum as a reflective material constituting the reflector.

Referring to FIG. 5, the first reaction unit 140 or the second reaction unit 160 has an outer shell made of a reflector, and a light that does not restrict the flow of ultraviolet light energy transmitted from a light source between the reflector and the fluid inside. The inner wall may be formed of a transmissive material, and as shown in FIG. 6 , the outer wall of the first reaction part 140 or the second reaction part 160 may be coated with a reflective material. In another embodiment, the first reaction unit 140 has an outer shell made of a reflector, and an inner wall made of a light-transmitting material that does not restrict the flow of ultraviolet light energy transmitted from the light source between the reflector and the fluid. The outer wall of the second reaction unit 160 may be coated with a reflective material so that the ultraviolet rays emitted from the first light source unit 130 are not irradiated to the second reaction unit 160, and vice versa.

Referring to FIG. 7 , the first reaction unit 140 or the second reaction unit 160 uses one or more of ultraviolet light transmitting materials as shown so that the fluid inside the reaction unit does not directly contact the reflector. It can be configured not to. For example, the first reaction unit 140 or the second reaction unit 160 includes sapphire, calcium fluoride, ultraviolet fused silica as an ultraviolet light transmitting material,

At least one of alpha barium borate, magnesium fluoride, or barium fluoride may be included. Through this, the first reaction unit 140 or the second reaction unit 160 can fundamentally block the leakage of substances harmful to health from an unknown reaction between the fluid and the reflector or between the ultraviolet rays and the reflector.

8 is a cross-sectional view showing an ultraviolet disinfection device according to a third embodiment of the present invention.

Referring to FIG. 8 , the ultraviolet sterilization device 10 according to the second embodiment of the present invention includes a suction part 210, a first light source part 130, a second light source part 150, and a discharge part 220. .

The suction unit 210 is located on the lower side of the chamber composed of at least one partition wall and injects a fluid such as air into the chamber. In this case, the suction unit 210 may additionally include a filter made of a photocatalytic material to prevent leakage of ultraviolet rays.

The first light source unit 130 is provided on an upper side inside the chamber to face the suction unit 210 and radiates first ultraviolet rays to oppose the movement of the fluid injected through the suction unit 210 . For example, when fluid is injected into the chamber, the first light source unit 130 may receive power from an external power source and emit first ultraviolet rays.

The second light source unit 150 is located on the lower side of the chamber and radiates second ultraviolet rays to oppose the movement of the fluid passing through the barrier rib through the first light source unit 130 . For example, when fluid is injected into the chamber, the second light source unit 150 may receive power from an external power source and emit second ultraviolet rays.

The first light source unit 130 and the second light source unit 150 may include at least one UV-LED for irradiating first and second ultraviolet rays, and in this case, the first light source unit 130 and the second light source unit ( 150) may radiate ultraviolet rays to oppose the movement of the fluid passing through the partition inside the chamber through the arrangement of the channel type. Through this, the first light source unit 130 and the second light source unit 150 can further improve the fluid sterilization effect by maximizing the effective residence time for the reaction of the ultraviolet rays with the microorganisms in the fluid.

The discharge unit 220 is located on one side of the chamber and discharges the fluid purified through the second ultraviolet rays to the outside of the chamber. At this time, the discharge unit 220 may additionally configure a filter made of a photocatalytic material to prevent leakage of ultraviolet rays.

9 and 10 are views illustrating the light source unit of the ultraviolet disinfection device according to the first to third embodiments of the present invention. Referring to FIG. 9 , it can be confirmed that there is a close correlation between the UV absorption characteristics of microorganisms and the inactivation efficiency. When conventional LP (Low Pressure)-UV is used as a light source, only a single wavelength of 254 nm is used for disinfection, which is relatively very simple or the disinfection area is limited and the effect may be reduced. MP (Medium Pressure)-UV When used, it may cause unnecessary energy consumption due to emission of light other than wavelengths that can contribute to disinfection.

Therefore, as shown in FIG. 10, the first light source unit 130 and the second light source unit 150 use ultraviolet rays showing maximum light energy absorption peaks at wavelengths of 265 ± 5 nm and 278 ± 7 nm, respectively, to detect microorganisms present in the fluid. The maximum bactericidal effect can be expressed by simultaneously attacking the DNA, RNA and protein areas.

11 is a view explaining a UV disinfection method according to a first embodiment of the present invention.

11 is a diagram illustrating a flow chart of an ultraviolet disinfection device according to an embodiment of the present invention.

Referring to FIG. 11 , in step S1110, the ultraviolet disinfection device 10 may supply fluid introduced from a public water supply pipe or an indoor or outdoor water storage tank to the first reaction unit 140.

In step S1130, when receiving the fluid flow signal from the fluid flow sensor unit, the ultraviolet disinfection device 10 supplies power to the first light source unit 130 or the second light source unit 150 according to a preset signal value.

In step S1150, the ultraviolet disinfection device 10 receives power from the power supply unit 120 according to the fluid flow signal detected by the fluid flow sensor unit and irradiates the first ultraviolet rays. Specifically, the ultraviolet disinfection device 10 is disposed on the inner surface of the first reaction unit 140 to irradiate the first ultraviolet light to the fluid introduced into the first reaction unit 140 through the fluid supply unit 110. .

Here, the ultraviolet disinfection device 10 may use ultraviolet light having a maximum peak at 265 ± 5 nm because most of the ultraviolet light energy may be absorbed by water when using ultraviolet light having a wavelength of 230 nm or less and may not be suitable for disinfecting drinking water.

In step S1170, the ultraviolet disinfection device 10 receives power from the power supply unit 120 according to the fluid flow signal detected by the fluid flow sensor unit and irradiates the second ultraviolet rays.

Specifically, the ultraviolet disinfection device 10 is disposed on the inner surface of the second reaction unit 160 to irradiate the second ultraviolet light to the fluid introduced into the second reaction unit 160 through the first reaction unit 140. can Here, the ultraviolet disinfection device 10 may use ultraviolet light having a maximum peak at 278±7 nm.

In step S1190, the ultraviolet sterilization device 10 exposes and reacts the fluid introduced through the upper fluid inlet to ultraviolet rays.

12 is a view explaining a UV disinfection method according to a second embodiment of the present invention.

Referring to FIG. 12 , in S1210, the ultraviolet disinfection device 10 supplies fluid introduced from a public water supply pipe or an indoor or outdoor water storage tank to the first reaction unit 140.

In S1230, the ultraviolet disinfection device 10 supplies power to the first light source unit 130 or the second light source unit 150.

At this time, the ultraviolet disinfection device 10 may include a fluid flow sensor for detecting the flow of fluid on one side of the first reaction unit 140 and/or the second reaction unit 160, and the ultraviolet disinfection device 10 ) may supply power to the first light source unit 130 or the second light source unit 150 according to a preset signal value when a fluid flow signal is received from the fluid flow sensor.

Here, when an arbitrarily set time elapses from the last time the fluid flow signal is received from the fluid flow sensor, the ultraviolet disinfection device 10 activates the first light source unit 130 or the second light source unit 150 according to a preset signal value. can supply power to

In S1250, the ultraviolet disinfection device 10 receives power from the power supply unit 120 and irradiates the first ultraviolet light. Here, the first ultraviolet light may be ultraviolet light in a wavelength range of 260 to 270 nm. The ultraviolet disinfection device 10 may use ultraviolet light having a maximum peak at 265 ± 5 nm because most of the ultraviolet light energy is absorbed by water when using ultraviolet light having a wavelength of 230 nm or less and may not be suitable for disinfecting drinking water.

In S1270, the ultraviolet disinfection device 10 receives power from the power supply unit 120 and irradiates the second ultraviolet light. Here, the second ultraviolet light may be ultraviolet light in a wavelength range of 271 to 285 nm. The ultraviolet disinfection device 10 may use ultraviolet light having a maximum peak at 278±7 nm.

13 is a diagram explaining a UV disinfection method according to a third embodiment of the present invention.

Referring to FIG. 13 , in S1310, the ultraviolet sterilization device 10 injects a fluid such as air into the chamber. At this time, the ultraviolet disinfection device 10 may additionally configure a filter made of a photocatalyst material to prevent leakage of ultraviolet rays.

In S1330, the ultraviolet disinfection device 10 radiates first ultraviolet rays to oppose the movement of the fluid injected through the suction unit 210. For example, when a fluid is injected into the chamber, the ultraviolet sterilization device 10 may receive power from an external power source and irradiate the first ultraviolet ray.

In S1350, the ultraviolet sterilization device 10 is located on the lower side of the chamber and radiates second ultraviolet rays to oppose the movement of the fluid passing through the partition through the first light source unit 130. For example, when a fluid is injected into the chamber, the ultraviolet sterilization device 10 may receive power from an external power source and irradiate the second ultraviolet ray.

In S1370, the ultraviolet sterilization device 10 is located on one side of the chamber and discharges the fluid purified through the second ultraviolet light to the outside of the chamber. At this time, the ultraviolet disinfection device 10 may additionally configure a filter made of a photocatalyst material to prevent leakage of ultraviolet rays.

14 to 17 are diagrams illustrating the disinfection performance of the ultraviolet disinfection device according to the second embodiment of the present invention.

Referring to FIG. 14, in order to compare and evaluate the disinfection performance of the ultraviolet disinfection device 10 according to the second embodiment of the present invention, the biologically treated water discharged from the public sewage treatment facility is transferred to a storage facility and separately provided. The pump can be used to pass through flowmeters and filters. Thereafter, disinfection is performed using the ultraviolet disinfection device 10 according to the second embodiment of the present invention and the device to which the existing disinfection method is applied, and the inflow and outflow water are collected from the front and rear ends of the device, respectively, to determine the total number of coliforms. After extraction, the removal rate of the total number of coliforms is finally calculated.

15 and 16, as a result of extracting the total number of coliforms by collecting the inflow water and the effluent water at the front and rear ends of the device, respectively, the effluent water purified through the ultraviolet disinfection device 10 according to the second embodiment of the present invention The total number of coliforms was confirmed to be less than 500 CFU/mL in the first round (#1) to the seventh round (#7), satisfying the effluent quality standard of 1000 CFU/mL.

Referring to FIG. 17, as a result of calculating the total coliform count removal rate by collecting inflow water and outflow water from the front and rear ends of the ultraviolet disinfection device 10 and the device to which the existing disinfection method is applied, the second embodiment of the present invention The total coliform count removal rate of the improved reactor, which is an ultraviolet disinfection device (10) according to the method, was found to be significantly higher than that of the universal reactor, which is a device to which the conventional disinfection method was applied, at all treatment rates (20L/min, 30L/min, 40L/min) It became. Through this, it can be confirmed that the disinfection performance of the ultraviolet disinfection device 10 according to an embodiment of the present invention is excellent.

The above description of the present invention is for illustrative purposes, and those skilled in the art can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included in the scope of the present invention.

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Claims (13)

In the ultraviolet disinfection device,
a fluid supply unit supplying an inflowing fluid;
a fluid flow sensor unit for sensing the flow of the fluid;
a power supply unit supplying power when receiving a fluid flow signal from the fluid flow sensor unit;
a first reaction unit through which the fluid supplied from the fluid supply unit is introduced through a fluid inlet located at a lower end of one side and discharged through a fluid outlet located at an upper end of the other side;
a first light source unit that receives power from the power supply unit and is positioned on the other side of the first reaction unit to radiate ultraviolet rays to oppose the movement of the fluid;
a second reaction unit through which the fluid discharged from the first reaction unit is introduced through the fluid inlet located at the upper end of the other side and discharged through the fluid outlet located at the lower end of one side;
a second light source unit located on one side of the second reaction unit and radiating ultraviolet rays to oppose the movement of the fluid; including,
The fluid passes through the first reaction unit or the second reaction unit always above the full water level and is discharged,
The fluid flow sensor unit is provided in a passage connecting the first reaction unit and the second reaction unit to detect the flow of the fluid;
The power supply unit supplies power to the first light source unit or the second light source unit according to a preset signal value when an arbitrarily set time elapses from the last time the fluid flow signal is received
Ultraviolet disinfection device characterized in that.
According to claim 1,
The ultraviolet ray disinfection device further comprising an outer shell surrounding the first reaction unit and comprising a reflector for reflecting ultraviolet rays or surrounding the second reaction unit and further comprising an outer shell comprising a reflector for reflecting ultraviolet rays.
According to claim 1,
The first reaction unit is composed of an ultraviolet light-transmitting material or the second reaction part is composed of an ultraviolet light-transmitting material. .
delete delete According to claim 1,
The outer wall of the second reaction part is coated with a reflector for reflecting ultraviolet light to reflect the ultraviolet light irradiated from the first light source part, or the outer wall of the first reaction part is coated with a reflector for reflecting ultraviolet light light irradiated from the second light source part. This reflective ultraviolet disinfection device.
According to claim 1,
An ultraviolet ray disinfection device in which ultraviolet rays having different maximum peak wavelengths are respectively irradiated from the first light source unit and the second light source unit.
In the ultraviolet disinfection device,
a fluid supply unit supplying an inflowing fluid;
a power supply unit supplying power when the flow of the fluid is sensed;
a first housing whose left end is closed;
a first reaction unit provided in a cylindrical structure inside the first housing, through which the fluid supplied from the fluid supply unit is introduced through a fluid inlet located at a lower end of one side, and discharging the fluid through an open left side;
a first light source unit provided on one side of the first housing and located close to the open surface of the first reaction unit to receive power from the power supply unit and to radiate ultraviolet rays to oppose the movement of the fluid;
a connection part configured to move the fluid discharged through the first reaction part in a cylindrical structure;
a second housing whose right end is closed;
a second reaction unit coupled to the connection unit, into which the fluid discharged from the first reaction unit flows, and discharging the fluid through an open right side of the cylindrical structure;
a second light source unit provided on one side of the second housing and positioned close to the open surface of the second reaction unit to receive power from the power supply unit and radiate ultraviolet rays to oppose the movement of the fluid; and
The power supply unit supplies power to the first light source unit or the second light source unit according to a preset signal value when an arbitrarily set time elapses from the last time the fluid flow signal is received
Ultraviolet disinfection device characterized in that.
delete delete delete In the ultraviolet disinfection method,
supplying fluid introduced from the water supply pipe;
sensing the flow of the fluid;
supplying power from a power source when the flow of the fluid is sensed;
receiving the electric power and radiating a first ultraviolet light by a first light source facing the flow of the fluid;
Including; receiving the power and irradiating a second ultraviolet light by a second light source facing the flow of the fluid;
The supplying of power may include supplying power to the first light source unit or the second light source unit by the power supply unit according to a preset signal value when an arbitrarily set time elapses from the last time the fluid flow signal is received.
Ultraviolet disinfection method further comprising a.

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