KR20200016486A - UV sterilizer device - Google Patents

Abstract

The present invention relates to a decanter UV disinfecting apparatus, which comprises: a buoyancy unit floating on a water surface of supernatant at a predetermined height; a vertical pipe-structured inlet formed at a lower portion by gravity of the buoyancy unit, and submerged in water to prevent the inflow of a suspending solution and attachment of a sludge during aeration and agitation; an outlet installed at the inlet at a predetermined interval, and having outflow water naturally dropped through an inner housing to flow therethrough; an outer housing including a cylindrical discharge passage by being in close contact with the outlet; a UV-C LED PCB substrate horizontally arranged to be in close contact with an upper side surface of the outer housing; and a plurality of UV-C LEDs mounted on the UV-C LED PCB substrate to sterilize a fluid discharged to the outlet via the inlet.

Description

Decanter UV Sterilization Device

The present invention relates to a decanter UV disinfection device, and more specifically buoyant portion to be floated by a certain height above the surface of the supernatant water; An inlet of the vertical pipe structure formed at the bottom by the gravity of the buoyancy part to be locked below the surface of the water to block the inflow of the turbidity and the attachment of the sludge during aeration and stirring; Outlets are installed at a predetermined interval spaced apart from the inlet, and the outlet flows through the inner housing flows naturally falling; An outer housing including an outlet passage in a cylindrical shape close to the outlet; A UV-C LED PCB substrate horizontally disposed to closely contact an upper surface of the outer housing; And a plurality of UV-C LEDs mounted on the UV-C LED PCB substrate to sterilize the fluid discharged to the outlet through the inlet.

Ultraviolet light (UV) is generally known to be more effective than conventional chemical sterilization methods for sterilizing Cryptosporidium, Giardia or other pathogenic microorganisms in water treatment, and is rapidly expanding in Europe and North America. Ultraviolet radiation refers to all electromagnetic radiation with a wavelength in the range of 10 to 400 nm. It is divided into UVA of 320 ~ 400 nm long wavelength, UVB of 280 ~ 320 nm, and UVC of 200 ~ 280 nm, which is shorter than that.The UVC in the UVC region is particularly effective for the sterilization of microorganisms. Ultraviolet rays used for other sterilization purposes are in the UVC region. Ultraviolet rays with shorter wavelengths than 10 – 200 nm are called “vacuum ultraviolet rays” because most of them are absorbed by air.

UV lamps are classified into low pressure lamps, low pressure high output lamps and medium pressure lamps according to their types. Low-voltage lamps usually have a power of about 40 to 100W, and generate a wavelength of about 253 nm. Medium-voltage lamps have a power of about 1 to 5 kW, and all ultraviolet rays of various wavelengths are generated over the entire ultraviolet range. Low-pressure lamps are suitable for very small systems, and most municipal water treatment systems use low-pressure, high-power or medium voltage lamps.

However, such a conventional ultraviolet lamp does not emit only ultraviolet rays in the wavelength band most effective for sterilization, the sterilization efficiency was not very high. However, these conventional lamps all have a problem that the power consumption and heat generation is severe, the life is short, and the environment is polluted by the toxic gas filled inside.

Korean Patent No. 1783327 proposed by the present inventors has a buoyancy chamber and a gravity water tank so that it floats a certain height above the surface of the upper water, and is formed in the lower portion by gravity of the gravity water tank and locked down below the surface of the water. And an inlet of the vertical pipe structure which can block the inflow of the turbid liquid and the attachment of the sludge upon stirring; Outlets are installed at a predetermined interval spaced apart from the inlet, and the outlet flows through the inner housing flows naturally falling; An outer housing including an outlet passage in a cylindrical shape close to the outlet; An inner housing forming an inner surface of the outer housing and having a mounting member mounted thereon for mounting the PCB tube; A PCB tubular substrate mounted vertically on the mounting member to closely contact the inner housing wall; And a plurality of UV LEDs mounted on the PCB tubular substrate to sterilize the fluid discharged beyond the overflow wear plate.

That is, the substrate mounted with the UV LED in the inner housing was installed on the wall where the fluid flows to sterilize with the discharge.

However, the conventional invention is composed of a plurality of UV LEDs mounted on the PCB tube-type substrate and vertically arranged, the structure is complicated, difficult to install and difficult to replace the UV LED was expensive maintenance.

Therefore, the development of a new decanter UV disinfection device is required to replace the conventional UV-lamp due to the improvement of UV-C LED performance.

Korean Laid-Open Patent No. 2017-0116549 Korean Laid-Open Patent No. 2017-0036173 Korean Patent Publication No. 2017-0127729 Korean Patent No. 1180420

The present invention has been made to solve the above problems, a decanter which inserts a UV-C LED PCB substrate on the upper side of the decanter of the wastewater treatment plant to sterilize harmful bacteria, and monitor the sterilization performance and heat generation in real time. The purpose is to provide a UV disinfection device.

It is also an object of the present invention to provide a decanter UV disinfection device which can prevent the preheating and make the irradiation distance to be sterilized uniformly and to control the intensity of the light source to sterilize harmful bacteria.

In order to solve the above problems, the present invention precipitates precipitate in a continuous batch reactor including an SBR reactor and a treatment tank, and then decanter UV disinfection device using gravity water to discharge the supernatant thereon, above the surface of the supernatant water. Buoyancy portion to be floating by a certain height; An inlet of the vertical pipe structure formed at the bottom by gravity of the buoyancy part to be locked below the surface of the water to block the inflow of the turbidity and the attachment of the sludge during aeration and stirring; Outlets are installed at a predetermined interval spaced apart from the inlet, and the outlet flows through the inner housing flows naturally falling; An outer housing including an outlet passage in a cylindrical shape close to the outlet; A UV-C LED PCB substrate horizontally disposed to closely contact an upper surface of the outer housing; And a plurality of UV-C LEDs mounted on the UV-C LED PCB substrate to sterilize the fluid discharged to the outlet beyond the inlet.

The UV-C LED PCB substrate has a polygonal shape and a removable structure in which UV-C LEDs are arranged in two dimensions in an enclosed space.

The surface of the UV-C LED PCB substrate is formed with a reflector reflecting the light of the UV-C LED.

A position sensing sensor is attached to a portion of the decanter UV disinfection device, and the decanter UV disinfection device transmits alarm information to the user when the decanter UV disinfection device is out of a predetermined position range on the upper surface of the water.

The reflective plate is composed of a reflective surface having a constant reflection angle, and is formed by depositing or sheeting an aluminum metal film on the surface of the metal or plastic.

The decanter further comprises a bent portion for supporting the UV-C LED PCB substrate in the transverse direction of the UV disinfection device.

The back of the UV-C LED PCB substrate further includes a radiator for dissipating heat of the UV-C LED.

The UV-C LED is a removable structure arranged in a two-dimensional matrix in a closed space.

The real-time monitoring system detects the abnormality of the decanter UV disinfection apparatus by grasping the sterilization performance and the heating state of the UV-C LED PCB substrate in real time.

The decanter UV disinfection device further includes a cleaning unit at a predetermined position in the internal space to clean the lens adjacently.

The present invention made as described above Maintenance costs and energy consumption, which are disadvantages of conventional UV lamps, can be significantly reduced.

In addition, the present invention can increase the sterilization effect by using a reflector and a photocatalyst in the UV LED.

In addition, the present invention can be processed without the use of harmful chemicals, there is no generation of harmful dibutyl phthalate (DBP) that occurs at the same time as the use of chemicals, 100mW UV-C is very effective in removing various water-borne microorganisms In particular, it is possible to remove Cryptosporidium and Giardia, which are resistant to chlorine.

In addition, the present invention can install a substrate mounted with a UV LED in the decanter inner housing on the upper side of the inner housing through which the fluid flows to increase sterilization efficiency and minimize the flow resistance of the fluid without disturbing the discharge.

1 is a view showing the overall configuration of the decanter UV disinfection device is installed.
FIG. 2 is a view illustrating a connection of the decanter UV disinfection device and the monitoring system of FIG. 1.
3 is a view showing a side view and a plan view of the decanter UV disinfection device according to an embodiment of the present invention.
Figure 4 is a view showing a cut surface of the decanter UV disinfection device according to an embodiment of the present invention.
5 is a view showing a heat dissipation unit according to an embodiment of the present invention.
6 is a view showing the internal structure of the UV-C LED and the decanter UV disinfection apparatus according to an embodiment of the present invention.
7 is a view showing in detail the configuration of a portion A of FIG.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiment of the present invention may be modified in various forms, the scope of the invention should not be construed as limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those skilled in the art. Therefore, the shape of the elements in the drawings and the like may be exaggerated to emphasize a more clear description. It should be noted that the same members in each drawing are sometimes indicated by the same reference numerals. In addition, detailed descriptions of well-known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention are omitted.

1 is a view showing the overall configuration of the decanter UV disinfection device is installed, Figure 2 is a view showing the connection of the decanter UV disinfection device and the monitoring system of Figure 1, Figure 3 is a decanter according to an embodiment of the present invention 4 is a view showing a side view and a plan view of the UV disinfection device, Figure 4 is a view showing a cut surface of the decanter UV disinfection device according to an embodiment of the present invention, Figure 5 is a view showing a heat dissipation unit according to an embodiment of the present invention. .

1 to 5, the present invention is installed in a decanter UV disinfection device floating on a constant height on the surface of the supernatant water to discharge the supernatant, the buoyancy portion 105 is installed to change the density of the reactor and the site conditions By contributing to balance the buoyancy and gravity according to, not only does not lose the center of gravity of the decanter, but also maintains the position of the decanter to remove the suspended matter (scum, scum) generated in the process of the liquid mixture settles It is possible to drain clean super water below the surface of the water.

The present invention relates to a decanter UV disinfection device (100) using gravity water for discharging a supernatant thereon after precipitation of a precipitate in a continuous batch reactor including an SBR reactor (10) and a treatment tank (20).

Specifically, the present invention is buoyancy portion 105 to be floated by a certain height above the surface of the supernatant water, formed by the gravity of the buoyancy portion 105 is lowered below the surface of the water to give up and agitation when the turbidity and stirring The inlet 111 of the vertical piping structure that can block the attachment of the sludge, is installed at a predetermined interval spaced apart, the inlet 112 flowing through the natural falling through the inner housing 112, the cylindrical in close contact with the outlet 112 The inlet (150) is mounted on the outer housing 150, the UV-C LED PCB substrate 120 and the UV-C LED PCB substrate 120 which is horizontally disposed to be in close contact with the upper side of the outer housing. And a plurality of UV-C LEDs 125 to sterilize the fluid exiting the outlet 112 beyond 111.

The UV-C LED 125 is designed to emit short ultraviolet rays with a wavelength of 200 to 280 nanometers (nm), destroying bacterial DNA on the surface of an object or flowing water and causing a chemical reaction to a special material to sterilize or cure a device. Used.

UV-C LED 125 used in the present invention has a wavelength of 278 nm high light output, the higher the light output can make a strong sterilization device, but it may be difficult to secure stable quality due to heat generation. Therefore, the present invention overcomes this by adding various components.

As another example of the present invention, UV-C LED 125 has a wavelength of 278nm, Forward Current 350 mA, Optical Power 100mW, Forward Voltage 7.0V, Beam Angle 120 Degree (100mW class) or Wavelength 278nm, Forward Current 200 It may be mA, Optical Power 200mW, Forward Voltage 30V, Beam Angle 120 Degree (200mW), or Wavelength 278nm, Forward Current 350 mA, Optical Power 300mW, Forward Voltage 32V, Beam Angle 120 Degree (300mW).

The UV-C LED PCB substrate 120 has a polygonal shape and a removable structure in which the UV-C LEDs 125 are arranged in a two-dimensional manner in a sealed space.

The number of installation of the UV-C LED 125 may be determined in consideration of the flow rate, flow direction, etc. of the raw water (waste water) to be treated.

That is, the UV-C LED 125 is seated on the inner surface of the UV-C LED PCB substrate 120 so that the liquid having a certain characteristic (eg, waste water) flows between the waste water flowing from the inlet I to the outlet O. The plurality of UV-C LED PCB substrate 120 sterilizes the liquid flowing in the middle direction without disturbing the direction as much as possible.

In other words, when using conventional UV LEDs, due to the deterioration of the sterilization effect, the board mounted with UV LEDs on the inner housing of the UV disinfection device is installed on the wall where the fluid flows to sterilize with the discharge, but it is difficult and expensive to install. The sterilization efficiency was not good (Korean Patent No. 1783327) in the present invention by using the method of sterilizing the UV-C LED 125 in the upper side was able to increase the installation and replacement cost and sterilization efficiency.

The surface of the UV-C LED PCB substrate 120 is formed with a reflector reflecting the light (L) of the UV-C LED (125).

The reflecting plate is composed of a reflecting surface having a constant reflection angle, and is formed by depositing or sheeting an aluminum metal film on the surface of the metal or plastic.

Attach the position sensor to the outer surface of the decanter UV disinfection device 100, the decanter UV disinfection device 100 by the UV-C LED PCB substrate 120 by leaving the predetermined position range on the water surface When the sterilization effect is lowered, the real-time monitoring system 300 transmits alarm information to the user.

In addition, as shown in FIG. 5, the rear surface of the UV-C LED PCB substrate 120 further includes a radiator 135 for dissipating heat of the UV-C LED 125.

The radiator 135 is made of, for example, aluminum, and has a wide external contact surface through a rectangular shape, a corrugated shape, and a plate shape, thereby greatly increasing the effect of the invention.

6 is a view showing the internal structure of the UV-C LED and decanter UV disinfection apparatus according to an embodiment of the present invention, Figure 7 is a view showing the configuration of part A of FIG.

6 and 7 further includes a bent portion 127 for supporting the UV-C LED PCB substrate 120 across the width direction of the decanter UV disinfection device 100.

In addition, the upper portion of the radiator 135 further includes a vent 126 for smooth inflow and outflow of air.

The ventilation part 126 may be empty in the inside, and the empty space may be inclined in a predetermined direction along the longitudinal direction so that the upper part is short and the lower part is wide, or in the opposite direction, the upper part is wide and the lower part is short. have. Therefore, it is possible to increase the efficiency of heat transfer by speeding up the movement of air and the like. In addition, when the air flow rises in a wide direction, a temperature drop may occur due to expansion due to tilt.

In detail, the decanter UV disinfection device 100 is inserted into and fixed to a pair of bent portions 127 supporting both sides of the UV-C LED PCB substrate 120 crossing in the width direction.

The UV-C LED PCB substrate 120 is inserted into and fixed to the pair of bent portions 127, and the UV-C LED PCB substrate 120 is fixed to the upper portion of the bent portion 127. Fixing portion 128, a protective lens 129-1 for protecting the UV-C LED, and the "c" shaped coupling portion 129 is further installed.

The UV-C LED PCB substrate 120 is a removable structure in which the UV-C LEDs 125 are matrixed two-dimensionally in a sealed space.

Therefore, when the UV-C LED 125 is coupled to a pair of bent portions 127 and the like, the UV irradiation direction or distance of the UV-C LED 125 concentrates on the liquid flowing inside the decanter UV disinfection device 100. The position of the bent portion 127 may be adjusted so as to adjust the sterilization effect according to the arrangement number of the UV-C LEDs 125.

In addition, the present invention can be detachably fitted UV-C LED PCB substrate 120 to the UV disinfection device 100 to sterilize the final treated water of the waste water treatment plant last disinfection, convenient installation, even if used for a long time UV- The replacement cost of the C LED 125 is less than before.

The UV-C LED 125 is a removable structure arranged in a two-dimensional matrix in a sealed space.

The real-time monitoring system 300 of FIG. 2 detects an abnormality of the decanter UV disinfection device 100 by grasping the sterilization performance and the heating state of the UV-C LED PCB substrate 120 in real time.

The real-time monitoring system 300 for detecting the abnormality of the decanter UV disinfection device 100 by identifying the operating state of the UV-C LED PCB substrate 120 in real time.

In the real-time monitoring system 300 can determine the sterilization information and heat information according to the reference value, the reference value means the upper limit value or the lower limit value that can be regarded as a normal category, the value is predetermined by a separate setting procedure and each detail It is set differently according to the characteristics of the judgment information.

In addition, the real-time monitoring system 300 may receive the real-time sterilization information and heat generation information of the decanter UV disinfection device, and then predict the overheating time by statistically increasing the rate of heat generation over time.

In addition, the real-time monitoring system 300 is primarily connected to the manager terminal capable of wireless communication, and if not connected to the manager terminal within a set time can be connected to the emergency contact terminal secondary.

As another embodiment of the present invention, the real-time monitoring system 300 immediately sends an SMS to the administrator in the event of an abnormality or overheating of the decanter UV disinfection device 100, thereby providing convenience for maintenance.

Therefore, the present invention can be quickly responded to real-time operation monitoring and abnormalities in remote locations.

In addition, the present invention is the emergency message status, including the heat of the water quality on the main screen of the real-time monitoring system 300 and the UV-C LED 125 of the decanter UV disinfection device 100, UV of the decanter UV disinfection device 100 -C LED 125 You can see the status information on one screen.

As shown in (a) of FIG. 6, the lens 125-1 is installed at a position spaced apart from the UV-C LED 125 by a predetermined distance and has a waterproof function.

In this case, the UV-C LED 125 and the lens 125-1 are cased into one body and are installed on the sidewall of the UV-C LED PCB substrate 120.

The lens 125-1 is a waterproof member, and may be made of quartz or fused silica glass, which may easily transmit ultraviolet rays.

When the UV-C LEDs 125 are arranged in a matrix, the UV-irradiation direction of the UV-C LEDs 125 may have a fan shape, and a portion of the UV-C LEDs 125 adjacent to each other may overlap.

For example, by adjusting the angle of the reflecting surface, such as a Fresnel lens, the ultraviolet rays irradiated to the waste water can be evenly distributed throughout the decanter UV disinfection device 100 to receive the ultraviolet rays evenly.

In addition, the UV-C LED PCB substrate 120 has an area corresponding to the area of the front surface and can be ultraviolet sterilized evenly using a diffusion member having a predetermined thickness.

In addition, the cleaning unit 127-1 is included in an arbitrary position of the internal space of the decanter UV disinfection device 100 to clean the protective lens 129-1.

In one embodiment, the cleaning unit 127-1 is positioned adjacent to the UV-C LED PCB substrate 120 inside the decanter UV disinfection device 100, and includes a cleaning nozzle capable of tilting the lens at a high temperature. It can automatically clean contaminants that may be attached to (125-1).

In addition, the cleaning unit 127-1 may automatically increase the efficiency of the sterilizing apparatus by automatically cleaning the inside of the decanter UV disinfection apparatus 100 when the real-time monitoring system 300 detects the sterilization performance degradation of the UV-C LED 125. .

A sensor (eg, a pollution degree measuring sensor for measuring pollution in water) may be attached to the washing unit 127-1.

The sensor information received from the sensor is information on measuring cleaning performance and intensity of light emission, and the light emission information may be transmitted to the real time monitoring system 300 and reported to the manager.

In one embodiment of the present invention further comprises a solar panel (not shown) on the outer surface of the decanter UV disinfection device 100. The solar panel may use power obtained using sunlight to operate the plurality of UV-C LEDs 125.

The solar panel is exposed to the outside from the upper side of the decanter UV disinfection device 100, preferably, the angle is adjusted by the hinges and the angle adjustment drive to track the position of the sun to increase the power generation efficiency. It is desirable to be.

In addition, as an embodiment of the present invention when the contamination information of the pollution degree sensor is a predetermined value or more and the decanter UV disinfection device 100 is out of the preset position range on the upper surface of the water surface notification module according to the present invention is broken Automatic message can be sent through the automatic notification module when it occurs.

For example, the alarm contents display detailed information on which of the plurality of decanter UV disinfection devices 100 has failed.

Here, the alarm according to the details of which of the plurality of decanter UV disinfection device 100 in the alarm content has failed, for example, the first alarm subject manager is absent or not contacted within a certain time period. In this case, the second and third managers can be contacted in turn, or the alarm contents can be changed according to each situation so that the method and process can be controlled instead of simply receiving the alarms in order.

That is, in the case of the 100 mW class having a wavelength of 278 nm, the 200 mW class having a wavelength of 278 nm, and the case of the 300 mW class of a wavelength of 278 nm, a method capable of responding to each situation can be displayed. For example, in the case of 100mW class, 200mW class, 300mW class, the color can be displayed on a specific map, and in case of danger or failure, the color can be displayed to blink.

In addition, the display method may constantly adjust the maximum number of alarms by reflecting personal information such as schedule schedules of the second and third managers. In other words, the number of alarms may be eliminated in the case of vacations of the second and third managers, and the number of alarms may be adjusted to a predetermined value or more when the working time has passed. In particular, the alarm can be controlled to stop the alarm when the number of times the alarm is more than a certain value.

100: Decanter UV Disinfection Device
105: buoyancy part
111: inlet of vertical piping structure
112: outlet
120: UV-C LED PCB Board
125: UV-C LED
125-1: Lens
127: fold
127-1: Cleaning unit
128: fixed part
129: coupling part
129-1: Protective Lens
135: radiator
150: outer housing
155: fitting
300: real time monitoring system

Claims (10)

In the decanter UV disinfection device using gravity water for discharging the precipitate in the continuous batch reactor including the SBR reaction tank 10 and the treated water tank 20, and discharged supernatant thereon,
A buoyancy portion 105 to float above the surface of the upper water by a certain height;
An inlet 111 of a vertical piping structure formed at the bottom by gravity of the buoyancy portion 105 and locked below the surface of the water to prevent the inflow of turbidity and the attachment of sludge during aeration and stirring;
An outlet 112 which is installed at a predetermined interval apart from the inlet and flows outflow water naturally falling through the inner housing;
An outer housing (150) comprising an outlet passage in a cylindrical shape close to the outlet (112);
A UV-C LED PCB substrate 120 disposed horizontally to be in close contact with an upper surface of the outer housing; And
And a plurality of UV-C LEDs (125) mounted on the UV-C LED PCB substrate (120) to sterilize the fluid discharged to the outlet (112) beyond the inlet (111). The method of claim 1,
The UV-C LED PCB substrate 120 is a polygonal decanter UV disinfection device, characterized in that the removable structure in which the UV-C LED (125) in a two-dimensional matrix arrangement in a closed space. The method of claim 1,
Decanter UV disinfection device, characterized in that the reflection plate reflecting the light (L) of the UV-C LED (125) is formed on the surface of the UV-C LED PCB substrate (120). The method of claim 1,
When the position sensor is attached to a portion of the decanter UV disinfection device, and the decanter UV disinfection device is out of a predetermined position range on the upper surface of the water, the real-time monitoring system 300 transmits alarm information to the user. Decanter UV disinfection device characterized in that. The method of claim 3,
The reflector is composed of a reflective surface having a constant reflection angle, decanter UV disinfection device, characterized in that formed by depositing or sheeting an aluminum metal film on the surface of the metal or plastic. The method of claim 2,
Decanter UV disinfection device further comprises a bent portion (127) for supporting the UV-C LED PCB substrate 120 across the width direction of the decanter UV disinfection device (100). The method of claim 1,
Decanter UV disinfection device, characterized in that the back of the UV-C LED PCB substrate 120 further comprises a radiator 135 for dissipating heat of the UV-C LED (125). The method of claim 1,
The UV-C LED 125 is a decanter UV disinfection device, characterized in that the removable structure arranged in a two-dimensional matrix (matrix) in a closed space. The method of claim 4, wherein
The real-time monitoring system 300 is a decanter UV disinfection device, characterized in that to detect the abnormality of the decanter UV disinfection apparatus by grasping the sterilization performance and the heating state of the UV-C LED PCB substrate 120 in real time. The method of claim 1,
A decanter UV disinfection device, characterized in that the cleaning unit is further included in a predetermined position of the interior space of the decanter UV disinfection device to clean the lens (125-1) adjacent.

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