KR100926893B1 - Fine-bubble rising type UV disinfection device by UV rays and fine bubble - Google Patents

Abstract

PURPOSE: An ultraviolet ray sterilization apparatus using ultraviolet rays and fine bubble is provided to sterilize microorganism such as a colon bacillus included in processed water. CONSTITUTION: An ultraviolet ray sterilization apparatus(100) using ultraviolet rays and fine bubble includes a main body(110), an ultraviolet generating device, a flowing washing device(130), a fine bubble generating device(140), and a blower(150). The fine bubble generating device includes a main bubble generating part(141), a secondary bubble generating part(145). A control device(160) operates the blower and the ultraviolet generating device. The gas is exhausted according to a blowing path(151) on the whole area uniformly.

Description

Fine-bubble rising type UV disinfection device by UV rays and fine bubble}

The present invention relates to a bubble floating ultraviolet sterilizer using ultraviolet rays and micro-bubbles, and more particularly to a bubble floating ultraviolet sterilizer using ultraviolet rays and micro-bubbles that can improve the uniformity of the sterilization ability over the sterilization area. .

The present invention relates to the sterilization of microorganisms, such as E. coli, present in treated water, such as sewage and livestock wastewater. A bubble floating type UV sterilizer which sterilizes microorganisms in the water to be treated by injecting ultraviolet rays and gases (air or ozonation air, same as below) irradiated from the ultraviolet lamp into the sterilization area of the treated water. will be.

The recent virus-detection of tap water has increased the concern about the contamination of the water we use, and it has been found that the cause of the virus is found in the sewage treatment plant effluent. Reached.

There are three main methods of sterilization of sewage. There are chlorine sterilization method, ultraviolet sterilization method and ozone sterilization method, and their advantages and disadvantages are described below.

The sterilization of sewage water has been dependent on chlorine until now, but it is known that the interaction between chlorine and organic matter in discharged water causes the generation of THM (Trihalomethane), a carcinogen, and the harmful effects of destroying the downstream stream ecosystem due to residual chlorine. As soon as the chlorine sterilization began to be ruled out.

Due to these disadvantages of chlorine sterilization method, as a sterilization method that can replace the chlorine sterilization method, a sewage to wastewater sterilization method using ultraviolet rays has recently been developed and applied. Conventional ultraviolet sterilizers are configured to sterilize microorganisms in water passing through the ultraviolet irradiation region by immersing the lamp horizontally in the water flow channel.

Until now, UV sterilization has been evaluated as environmentally friendly in wastewater sterilization method. Ultraviolet rays with a wavelength of 253.7㎜ inactivate the microorganisms by destroying the DNA of microorganisms, and have the advantage of being able to sterilize with contact time of several seconds at the proper irradiation intensity. Although it is easy to install and has excellent sterilization efficiency, many UV lamps are required for sewage treatment or wastewater treatment where the total number of target water is very large.In the case of high turbidity, a sudden decrease in irradiation intensity and reduction of reach In addition, adhesion of foreign matter to the surface of the quartz tube surrounding the ultraviolet lamp is rapidly progressed, so that the sterilization efficiency of microorganisms due to ultraviolet rays is rapidly decreased.

The ozone sterilization method uses ozone's strong oxidizing power to kill microorganisms. Ozone easily inactivates microorganisms by destroying microbial cell walls with its unique strong oxidizing power. However, since ozone reacts ahead of microorganisms in reaction with organic matter, very high concentrations of ozone injection should be maintained in sewage treatment plants containing large amounts of organic matter or wastewater treatment plants. That is, the sterilization power is excellent, but high concentration injection and operation safety of the ozone generator are not secured, and most of the treatment plants avoid application.

As described above, the conventional sterilization method has advantages and disadvantages, but the double ultraviolet sterilization method is most applied.

In the present invention, to overcome the disadvantages of the above UV sterilization method and highlight only the advantages to efficiently sterilize the treated water of the sewage treatment plant or wastewater treatment plant.

In addition, microorganisms or organic materials have a droplet effect attached to the interface between the micro-bubbles and the water when there are micro bubbles in the water, and the technique of floating the organic material to the surface by bubbles to remove the water is already known in the name of floating separation.

The present invention has excellent sterilization efficiency against microorganisms present in the effluent of sewage treatment plant or wastewater treatment plant by using ultraviolet rays and micro-bubbles, and is easy to operate, and further enhances sterilization effect and increases treatment capacity. An object of the present invention is to provide a bubble floating ultraviolet sterilizer using bubbles.

In addition, another object of the present invention, to improve the cleaning effect and to provide a bubble-induced UV sterilizer using ultraviolet and micro-bubbles that can be safely washed.

In addition, another object of the present invention is to provide an ultraviolet and micro-bubble bubble floating UV sterilizer that can reduce the size of the facility to improve the space utilization.

In addition, another object of the present invention is to provide a bubble floating ultraviolet sterilizer using ultraviolet rays and micro-bubbles that can reduce the number of parts.

In addition, another object of the present invention is to provide a bubble floating ultraviolet sterilizer using ultraviolet rays and microbubbles that can generate microbubbles uniformly over a sterilization region.

According to the present invention, in the bubble floating UV sterilizer using ultraviolet rays and micro-bubbles, the main body is installed between the inflow and outflow water to form a sterilization region; An ultraviolet generating device having an ultraviolet lamp for irradiating ultraviolet rays and disposed in the sterilization area and supported by the main body; A flow type washing device coupled to the main body to wash the ultraviolet light generator while moving relative to the ultraviolet light generator; A micro bubble generator for generating micro bubbles in the sterilization region; And a blower for supplying gas to the microbubble generating device, wherein the microbubble generating device is provided at a lower portion of the main body and spaced apart from the main bubble generating part for generating microbubbles into a sterilization area. And an auxiliary bubble generating unit disposed in at least one of the up, down, left, and front directions of the main body to uniformly distribute the fine bubbles to the sterilization region and form a vortex in the inflow water. A washing drive unit supported on one side of the main body; A moving member provided to be movable along the ultraviolet light generating device by driving of the washing drive unit and guide of a guide bar supported on the other side of the main body; And a washing ring having a scraper in contact with the ultraviolet generating device to remove contaminants, wherein the guide bar has an auxiliary nozzle for generating fine bubbles of the auxiliary bubble generating part with gas supplied from the blower. It is achieved by a bubble floating UV sterilizer using ultraviolet rays and micro-bubbles.

In addition, it is preferable that the washing ring is coupled to the movable member so as to flow with respect to the movable member while the washing ring moves along the outer side of the ultraviolet ray generator.

In addition, the guide bar is supported by the main body in the longitudinal direction in the vertical direction of the main body, the auxiliary nozzle is preferably formed along the longitudinal direction of the guide bar.

In addition, the auxiliary nozzle is preferably formed in a spiral along the longitudinal direction of the guide bar.

On the other hand, an object according to the present invention, in the ultraviolet sterilization apparatus using ultraviolet rays and micro-bubbles, the main body is installed between the inflow and outflow water to form a sterilization region; An ultraviolet generator disposed in the sterilization region and supported by the main body to irradiate ultraviolet rays; A flow type washing device coupled to the main body to wash the ultraviolet light generator while moving relative to the ultraviolet light generator; A microbubble generating device for generating microbubbles in the sterilization region; And a blower for supplying gas to the microbubble generating device, wherein the microbubble generating device is provided at a lower portion of the main body and spaced apart from the main bubble generating part for generating microbubbles into a sterilization area. And an auxiliary bubble generating unit arranged in at least one of the vertical direction, the horizontal direction, and the front and rear directions of the main body to uniformly distribute the fine bubbles to the sterilization region and form a vortex in the inflow water. A washing member supported on one side of the main body, a moving member provided to be movable along the ultraviolet generating device by the driving of the washing driving unit and a guide bar supported on the other side of the main body, and the ultraviolet generating device And a washing ring having a scraper contacting the outside to remove contaminants, wherein the moving member It is also achieved by a bubble floating type UV sterilizer using ultraviolet rays and micro-bubbles, characterized in that provided in a plurality of stages along the longitudinal direction of the ultraviolet ray generating device.

In addition, it is preferable that the washing ring is coupled to the moving member so as to flow with respect to the moving member in the process of moving the washing ring along the ultraviolet light generating device.

In addition, the auxiliary bubble generating unit, it is preferable to include an auxiliary pipe for guiding the gas introduced from the discharge side of the blower, and an auxiliary nozzle formed along the longitudinal direction of the auxiliary pipe.

In addition, the auxiliary pipe is supported by the main body in the longitudinal direction in the horizontal direction of the flow direction of the inflow water at a predetermined interval along the vertical direction of the main body, the auxiliary nozzle is straight, zigzag, along the longitudinal direction of the auxiliary pipe path, It is preferable that it is formed in a spiral shape.

According to the present invention, it has excellent sterilization efficiency, is easy to operate, and can increase sterilization effect and increase processing capacity.

In addition, it can improve the cleaning effect and can be safely washed.

In addition, it is possible to reduce the size of the equipment to improve space utilization, and to shorten the washing time.

In addition, the number of parts can be reduced, thereby improving economic efficiency.

In addition, microbubbles can be generated uniformly through the sterilization region.

In addition, by forming a vortex in the sterilization area in the body to eliminate dead space and induce the flow of fluid around the ultraviolet lamp to increase the chance of contact with the strong ultraviolet energy irradiated from the ultraviolet lamp disinfection efficiency of harmful microorganisms Can improve.

In addition, by supplying microbubbles through the microbubble generating device to suppress the adhesion of contaminants on the surface of the quartz tube installed in the main body to maintain a constant and maximum UV transmittance can maintain the disinfection efficiency continuously and stably.

Bubble-induced UV sterilizer using ultraviolet rays and micro-bubbles, each sterilizer is installed in the waterway as a single device, and several such sterilizers are also included in the UV sterilizer according to the present invention below Shall be.

The bubble floating ultraviolet sterilizer using ultraviolet rays and microbubbles according to the present invention may be installed in a treated water discharge tank or treated water channel of a sewage treatment plant or a livestock wastewater treatment plant. Unlike the existing UV sterilizers, the UV lamps used in the sterilizers are installed vertically with respect to the water flow direction of the channel to facilitate the installation and replacement of the lamps. The ultraviolet lamp is installed in the main body to irradiate the ultraviolet light to the sterilization area, and to supply the sterilization area in the shape of microbubbles in the lower part and the front, the side or the rear part of the main body.

Therefore, the sterilization effect by the intensive irradiation of ultraviolet rays in the sterilization area, the sterilization effect by the gas alone and the ultraviolet ray alone, the sterilization efficiency by the hydroxyl group generated by the interaction between the oxidizing ozone gas and the ultraviolet ray, and the droplet effect by the micro bubble Each sterilization effect maximizes the sterilization efficiency of microorganisms in the water, and also functions to oxidize and decompose some organic pollutants in the treated water.

The micro bubbles scattered ultraviolet rays and solved problems such as decreasing the amount of ultraviolet radiation and reducing the irradiation distance even in the case of high turbidity, so that they can have sterilization efficiency equivalent to that of clear water.

One or two UV lamps are installed in the sterilization device according to the amount of water to be treated, and gas supplied by a separate ozone generator or blower (air or ozone air) in the sterilization area of the treated water. Bubble generator is installed to supply micro bubbles in a state that is configured to supply micronized air or ozonated air to improve the sterilization efficiency of the water to be treated by these micro bubbles. In addition, the gas supplied in the form of microbubbles forms vortices in the treated water to induce scattering and reflection effects to sterilize the microorganisms in the water to be treated and oxidize and decompose some of the organics in the water. It serves to reduce.

In particular, the microbubble supplied to the sterilization zone induces a droplet effect to attach the microorganisms in the water to the contact surface of the bubble and the water to maximize the sterilization efficiency by ultraviolet rays. In addition, the fine bubbles raise the water by the friction with the water during the rising degree to form a rising flow.

The flow type washing device plays a role of allowing the washing ring to move up and down periodically.

Hereinafter, a bubble floating ultraviolet sterilizer using ultraviolet rays and micro bubbles according to the present invention will be described with reference to FIGS. 1 to 8.

1 is a side view and a plan view showing an embodiment of the ultraviolet sterilizer according to the invention disposed between the inlet and outlet, Figure 2 is a perspective view of the ultraviolet sterilizer of Figure 1, Figure 3 is a plan view of Figure 2, 4 is a cross-sectional view taken along the line IV-IV of FIG. 2, FIG. 5A is a perspective view showing an embodiment of the auxiliary nozzle in the auxiliary bubble generator, and FIG. 5B is another embodiment of the auxiliary nozzle in the auxiliary bubble generator. 5C is a perspective view showing another arrangement example of the auxiliary bubble generating unit, Figure 6 is an enlarged cross-sectional view for explaining a state that the washing ring is coupled, Figure 7 is a schematic diagram showing the air flow of the UV sterilizer , Figure 8 is a graph for comparing E. coli disinfection efficiency according to the presence or absence of air supply of the UV sterilizer.

For convenience of explanation, as shown in FIG. 1, the left and right directions of the side view of FIG. 1, which is the flow direction of the treated water from the inlet to the outlet, are vertically up and down in the side view of FIG. 1 perpendicular to the “X” axis direction and the “X” axis direction. The direction is set to the "Y" axis direction, and the front-back direction of the side view of FIG. 1 is set to the "Z" axis direction, respectively.

Ultraviolet sterilization apparatus 100 according to the present invention (simplifies the bubble floating ultraviolet sterilization apparatus using ultraviolet rays and micro-bubbles), the main body 110, the ultraviolet ray generating device 120, the flow type washing device 130, bubbles And a generator 140 and a blower 150.

1, 2, 3, and 4, the main body 110 is disposed between the inlet and the outlet to support each component of the configuration of the present invention. The main body 110 supports various configurations to form a sterilization region between the inlet and the outlet and sterilize microorganisms such as E. coli in the treated water passing through the sterilization region by using ultraviolet rays and microbubbles. The main body 110 is preferably opened not only in the "X" direction but also in the "Z" direction so that the capacity of the treated water passing through the sterilization region may be increased. That is, as shown in FIG. 2, the main body 110 has a rectangular cylindrical shape. Here, the main body 110 may be not only a rectangular cylindrical shape but also a cylindrical shape and another polygonal cylindrical shape.

As illustrated in FIGS. 2, 3, 4, 6, and 7, the ultraviolet ray generator 120 is supported by the main body 110 so as to divide the sterilization region evenly. The ultraviolet generator 120 includes an ultraviolet lamp 121 for irradiating ultraviolet rays by the power supplied from the controller 160 and a quartz material for receiving the ultraviolet lamp 121 and blocking contact with the treated water. It has a quartz tube 123. The quartz tube 123 is in direct contact with the treated water to be contaminated and should be cleaned periodically or continuously.

2, 3, 4, 6 and 7, the washing apparatus 130, the washing drive unit 131, the guide bar 132, the moving member 133, and washing A ring 135 and a spacer 139 are provided. The flow type cleaning device 130 removes contaminants from the outside of the quartz tube 123 to remove contamination of the quartz tube 123 to maintain the maximum amount of ultraviolet light emitted from the ultraviolet lamp 121.

The washing driving unit 131 is supported by the main body 110 to move the moving member 133 along the quartz tube 123. The washing driving unit 131 has a washing driving member 131a driven by power, oil pressure, and the like, and a driving shaft 131b coupling the washing driving member 131a and the moving member 133. Here, the washing driving member 131a includes an air cylinder driven by compressed air.

The guide bar 132 serves to guide the movement of the moving member 133, and may also function as a conduit of the auxiliary bubble generator 145 as described below.

The moving member 133 is coupled to the drive shaft 131b at the center of one side and coupled to the guide bar 132 at the outside of the other side to induce the movement of the washing ring 135 coupled around the ultraviolet ray generator 120. . In addition, the movable member 133 has a cutout portion 133A formed to allow the microbubbles generated by the main bubble generator 141 or the auxiliary bubble generator 145 to pass through the plate surface of the movable member 133. Thus, the microbubbles can more easily pass up and down the moving member 133 to induce scattering or reflection of the ultraviolet rays emitted from the ultraviolet generating device 120.

The washing ring 135 includes a scraper 137 moving along the outside of the quartz tube 123 to remove contaminants attached to the quartz tube 123. The washing ring 135 is divided into upper and lower parts and is configured to be coupled to the moving member 133 by means such as screw fastening.

The washing ring 135 is coupled to the movable member 133 in a flowable manner. An embodiment thereof will be described with reference to FIG. 6 as follows. The outer diameter of the quartz tube 123 and the scraper 137 are in contact with each other. The gap between the inner side of the washing ring 135 accommodating the scraper 137 and the outer diameter of the quartz tube 123 has a gap (see “GAP1” in FIG. 6). Have In addition, between the upper plate and lower plate of the moving member 133 and the upper and lower sides of the "C" groove of the washing ring 135 has a different gap (see "GAP2", "GAP3" of Figure 6). Further, another gap (see “GAP4” in FIG. 6) is formed between the inner diameter of the movable member 133 and the inner side of the “c” groove of the washing ring 135. That is, in the process of moving the moving member 133 by the cleaning driving unit 131, the washing ring 135 has a gap that can flow with respect to the moving member 133. The reason for having such a gap is that the outer diameter of the quartz tube 123 is uneven, and the straightness of the quartz tube 123 is not constant.

Thus, even though the quartz tube 123 is slightly curved in the process of removing the contaminants outside the quartz tube 123, the cleaning ring 135 flows with respect to the moving member 133, and the scraper 137 moves the quartz tube 123. Since it is always possible to apply a constant force to the outside, it is possible to remove the contaminants outside the quartz tube 123 very effectively. In addition, an unnecessary strong force is not applied to the quartz tube 123, thereby preventing the quartz tube from being damaged. In response to various turbidities of the treated water, various cleaning cycles may be adjusted to keep the quartz tube 123 from being contaminated.

The moving member 133 may be formed of a plurality of stages in another embodiment. That is, as shown in Figure 2, the moving member (133a, 133b) is divided into two stages of the upper end (133a) and the lower end (133b) can shorten the moving distance of the cleaning drive unit (131). The number of stages in which the movable member 133 is installed is selected in consideration of the processing capacity, the height of the channel, the width, and the like. Thus, since the time required for washing is short and the moving distance is short, the size of the washing driving unit 131 can be reduced, thereby reducing the space required for installation.

The spacer 139 is coupled to each moving member 133 so as to maintain a gap between each moving member 133 when the moving member 133 is formed in multiple stages. As shown in FIG. 2, the spacer 139 may be located at an edge portion of a rectangular cylinder and may be disposed at various positions as necessary. Thus, the interval of the moving member 133 can be maintained more effectively.

Bubble generator 140 is shown in Figures 2 to 5c and 7, which is a very important function in the present invention is supplied so that the ultraviolet light emitted from the ultraviolet generator 120 to sterilize microorganisms more effectively The gas (air or ozonated air, etc.) is supplied as microbubbles to the sterilization zone and the microbubbles are distributed as uniformly as possible in the sterilization zone. The bubble generator 140 includes a main bubble generator 141 and an auxiliary bubble generator 145. Here, the positions of the main bubble generator 141 and the auxiliary bubble generator 145 may be changed in various ways.

The main bubble generating unit 141 is provided in the lower portion of the main body 110 to discharge the fine bubbles to the sterilization region formed on the upper. The discharge direction of the main bubble generating unit 141 is preferably discharged slightly inclined toward the inflow of the inflow water from the lower portion of the main body 110 in the vertical direction "Y" in consideration of the inflow rate of the inflow water. As a result, the fine bubbles are distributed around the ultraviolet ray generator 120 under the influence of the inflow speed of the main nozzle 141b so as to uniformly distribute the fine bubbles throughout the sterilization region. In addition, in the number and size of the main nozzle 141b, it is preferable that the inflow water direction is larger than the outflow water direction and formed larger. This is because the microbubbles emitted from the main nozzle 141b on the inflow side can maintain the bubble state while moving toward the outflow side in the “X” axis direction. Reference numeral “A” of FIG. 2 means a space at the lower end of the main body 110 that functions as a pipeline of the main bubble generator 141.

The auxiliary bubble generating unit 145 may be installed in any one or more of the "Y" direction of the up and down direction of the main body 110, the "X" direction of the left and right direction, the "Z" direction of the front and rear directions. The auxiliary bubble generator 145 works together with the primary bubble generator 141 to function to distribute the micro bubbles more uniformly over the entire volume of the sterilization zone.

The auxiliary bubble generator 145 may be provided in various forms but one embodiment will be described with reference to FIGS. 2 to 5B.

The auxiliary bubble generator 145 includes an auxiliary pipe 145a and an auxiliary nozzle 145b.

The auxiliary pipe 145a also performs the above-described guide bar 132 function. That is, the auxiliary pipe line 145a has a pipe shape with a hollow center, and gas supplied from the blower 150 is introduced therein and is formed through the auxiliary nozzle 145b at a predetermined position to sterilize the area through the auxiliary nozzle 145b. To generate microbubbles. In addition, the auxiliary pipe 145a may be provided in a tubular shape having a rhombus or streamlined cross-section along the “X” direction to minimize the resistance of the fluid rather than the cylindrical shape.

In addition, the auxiliary pipe line 145a is different from the one shown in FIGS. 2 to 4, and as shown in FIG. 5C, the “Z” direction, which is a horizontal direction in the inflow direction, as the longitudinal direction of the auxiliary pipe line 145a. It may be arranged at a predetermined interval in the "Y" direction of the up and down direction of. Thus, by discharging the micro bubbles in the inflow direction, the micro bubbles can be evenly distributed throughout the sterilization region.

The size, direction, etc. of the auxiliary nozzle 145b may be variously provided. The auxiliary nozzle 145b is not only formed through the auxiliary pipe passage 145a but also includes attaching a special nozzle to the formed portion.

An example in which the auxiliary nozzle 145b is formed in the auxiliary pipe line 145a will be described with reference to FIGS. 5A and 5B. That is, as illustrated in FIG. 5A, the auxiliary nozzle 145b formed at a predetermined length (see “L1”) of the auxiliary nozzle 145b and the remaining length (see “L2”) along the longitudinal direction of the auxiliary pipe 145a. The direction of is different. In addition, the auxiliary nozzle 145b may be provided in a spiral shape as shown in FIG. 5B along the longitudinal direction of the auxiliary pipe line 145a. The shape of the auxiliary nozzle 145b may be formed in various forms in consideration of the inflow rate of the inflow water, the processing capacity of the treated water, the installation position of the auxiliary pipe 145a, the generation amount of the fine air, the sterilization ability of the ultraviolet light, and the like. .

Here, the main nozzle 141b may also be provided in various forms like the auxiliary nozzle 145b.

Vortex is formed in the treated water by the bubbles generated in the main bubble generating unit 141 and the auxiliary bubble generating unit 145 as shown in the arrows of FIG. That is, the direction in which the generated microbubbles are discharged or blown out and the direction in which the inflow water flows are different so that the treated water turns into a vortex in the sterilization zone by the jetted microbubbles.

As a result, the time for which the treated water stays in the sterilization zone is increased, and the fine bubbles are evenly distributed over the entire volume of the sterilization zone. That is, the ultraviolet rays generated by the ultraviolet ray generating device 120 may be actively scattered or reflected by microbubbles uniformly distributed in the sterilization area, thereby further improving the ability to sterilize microorganisms in the treated water.

In addition, by forming a vortex in the sterilization area in the body to eliminate dead space and induce the flow of fluid around the ultraviolet lamp to increase the chance of contact with the strong ultraviolet energy irradiated from the ultraviolet lamp disinfection efficiency of harmful microorganisms Can improve.

In addition, by supplying microbubbles through the microbubble generating device to suppress the adhesion of contaminants on the surface of the quartz tube installed in the main body to maintain a constant and maximum UV transmittance can maintain the disinfection efficiency continuously and stably.

Thus, compared with the prior art, the amount of treated water that can be treated can be increased even if ultraviolet rays are emitted in the same manner, and the amount of dissolved oxygen in the discharged water can be increased by uniformly distributing microbubbles in the sterilization zone. . If the throughput is the same, the amount of ultraviolet rays emitted may be reduced compared to the prior art, thereby reducing energy costs, thereby improving economic efficiency and reducing the size, thereby improving space utilization.

Referring to Figures 2, 3 and 7 the operation of the ultraviolet sterilizer 100 according to the present invention having such a configuration as follows.

First, when power is applied from the controller 160, the blower 150 and the ultraviolet ray generator 120 is operated. Ultraviolet rays are emitted from the ultraviolet lamp 121 of the ultraviolet generator 120 and the gas discharged from the blower 150 is discharged from the main bubble generator 141 and the auxiliary bubble generator 145 along the blow passage 151. Microbubbles are released to distribute evenly over the entire volume of the sterilization zone. Thus, microorganisms such as E. coli present in the treated water by ultraviolet rays and microbubbles can be sterilized very effectively.

In addition, the flow type cleaning device 130 may be operated periodically or continuously according to the information input to the control device 160 to remove contaminants of the quartz tube 123 to keep the emission efficiency of ultraviolet rays to be maximized.

Such a system in which several UV sterilizers 100 according to the present invention are installed in series or in parallel according to throughput is also included in the UV sterilizer 100 according to the present invention.

<Table 1: Comparison table of bactericidal effects of Escherichia coli according to air supply and no supply

division Coliform count (pcs / ml) Removal efficiency Yu can 7,457 Outflow Air supply 186 97.5% Without air 613 63.9%

That is, as shown in Table 1 and Figure 8, when the same influent sterilized by the same sterilizer, when the air is supplied compared to the case of not supplying the efficiency of removing E. coli 63.6% to 97.5% It can be seen that very high. Thus, it is possible to know indirectly the effect of the irradiation of ultraviolet rays and bubbles scattering or reflecting ultraviolet rays.

In addition, looking at the actual application of the ultraviolet sterilizer according to the present invention.

The daily throughput of the treated water is 150,000m3, the SS concentration is 10mg / l, the inflow E. coli population is 100,000 / ml, the outflow E. coli population is 1,000 / ml, the UV intensity at design is over 23,000㎼ / ㎠ and the UV lamp 325W. Assume

Here, the number of channels to be installed UV sterilizer according to the present invention is two and the width and the effective depth of the channel is 1.5 meters, 1.8 meters respectively.

In this case, the number of UV lamps is about 160 in consideration of various factors, the arrangement distance of the UV generator, the UV transmittance, and the like.

If 20 UV lamps are installed in one UV sterilizer, 8 UV sterilizers are required. Therefore, it is preferable to provide four ultraviolet rays and microbubbles using bubble-floating ultraviolet sterilizers in each channel.

Here, although various embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the art that the present embodiments may be modified without departing from the spirit or spirit of the present invention. will be. It is intended that the scope of the invention be defined by the claims appended hereto and their equivalents.

1 is a side view and a plan view showing an embodiment in which the UV sterilizer according to the invention is disposed between the inlet and outlet

Figure 2 is a perspective view of the ultraviolet sterilizer of Figure 1

3 is a plan view of FIG.

4 is a cross-sectional view taken along the line IV-IV of FIG.

Figure 5a is a perspective view showing an embodiment of the auxiliary nozzle in the auxiliary bubble generator

Figure 5b is a perspective view showing another embodiment of the auxiliary nozzle in the auxiliary bubble generator

5C is a perspective view showing another arrangement example of the auxiliary bubble generator;

Figure 6 is an enlarged cross-sectional view for explaining a state in which the washing ring is coupled

7 is a schematic view showing the air flow of the ultraviolet sterilizer

8 is a graph for comparing E. coli disinfection efficiency according to the presence or absence of air supply of the UV sterilizer

<Description of the symbols for the main parts of the drawings>

100: UV sterilizer 110: main body

120: UV generator 121: UV lamp

123: quartz tube 130: flow type washing apparatus

131: cleaning drive unit 132: guide bar

133: moving member 135: washing ring

137: scraper 139: spacer

140; Bubble generator 141: main bubble generator

145: auxiliary bubble generator 150: blower

151: blowing air flow path 160: control device

Claims (8)

In the bubble floating ultraviolet sterilizer using ultraviolet rays and micro bubbles, A main body installed between the inflow water and the outflow water to form a sterilization region; An ultraviolet generating device having an ultraviolet lamp for irradiating ultraviolet rays and disposed in the sterilization area and supported by the main body; A flow type washing device coupled to the main body to wash the ultraviolet light generator while moving relative to the ultraviolet light generator; A micro bubble generator for generating micro bubbles in the sterilization region; It is provided with a blower for supplying gas to the fine bubble generator, The sterilization zone is open to the flow between the inflow and outflow, The ultraviolet generating device is disposed in the sterilization zone up and down in the depth direction of the influent flow to be in direct contact with the influent flow, The microbubble generating device may include a main bubble generating part provided under the main body to generate microbubbles to the sterilizing area, and spaced apart from the main bubble generating part and disposed in the main body to uniformly distribute the microbubble to the sterilizing area. A secondary bubble generator which distributes and forms a vortex in the influent, The flow type washing apparatus includes a washing driving unit supported on one side of the main body; A moving member provided to be movable along the ultraviolet light generating device by driving of the washing drive unit and guide of a guide bar supported on the other side of the main body; Has a cleaning ring having a scraper in contact with the ultraviolet generating device to remove contaminants; The guide bar is disposed in the up and down direction of the main body is a bubble floating type UV sterilizer using ultraviolet and micro-bubbles, characterized in that the auxiliary nozzle for generating a micro-bubble of the auxiliary bubble generating unit with the gas supplied from the blower . The method of claim 1, Bubble floating type UV sterilizer using ultraviolet rays and micro-bubbles, characterized in that the washing ring is coupled to the moving member so as to flow relative to the moving member in the process of moving the washing ring along the outside of the ultraviolet generating device. . The method according to claim 1 or 2, The main body has a rectangular shape, The guide bar is disposed in the rectangular corner of the main body in the longitudinal direction of the main body, The auxiliary nozzle is a bubble-induced UV sterilizer using ultraviolet rays and micro-bubbles, characterized in that any one of a straight, spiral and zig-zag along the longitudinal direction of the guide bar. The method of claim 1, The moving member is a bubble floating type UV sterilizer using ultraviolet rays and micro-bubbles, characterized in that installed in a plurality of stages along the longitudinal direction of the ultraviolet generating device. In the ultraviolet sterilizer using ultraviolet rays and micro bubbles, A main body installed between the inflow water and the outflow water to form a sterilization region; An ultraviolet generating device having an ultraviolet lamp for irradiating ultraviolet rays and disposed in the sterilization area and supported by the main body; A flow type washing device coupled to the main body to wash the ultraviolet light generator while moving relative to the ultraviolet light generator; A micro bubble generator for generating micro bubbles in the sterilization region; It is provided with a blower for supplying gas to the fine bubble generator, The sterilization zone is open to the flow between the inflow and outflow, The ultraviolet generating device is disposed in the sterilization zone up and down in the depth direction of the influent flow to be in direct contact with the influent flow, The microbubble generating device may include a main bubble generating part provided under the main body to generate microbubbles to the sterilizing area, and spaced apart from the main bubble generating part and disposed in the main body to uniformly distribute the microbubble to the sterilizing area. A secondary bubble generator for distributing and forming a vortex in the influent, The auxiliary bubble generating unit guides the gas introduced from the discharge side of the blower, and includes an auxiliary pipe path supported by the main body in the longitudinal direction in the horizontal direction of the flow direction of the inflow water at predetermined intervals along the vertical direction of the main body, Shape of the auxiliary nozzle formed along the longitudinal direction of the auxiliary pipe path is a bubble floating type UV sterilizer using ultraviolet and micro-bubbles, characterized in that it comprises any one of a straight line, zigzag and spiral shape along the longitudinal direction of the auxiliary pipe path . The method of claim 5, The flow type washing apparatus includes a washing driving unit supported on one side of the main body; A moving member provided to be movable along the ultraviolet light generating device by driving of the washing drive unit and guide of a guide bar supported on the other side of the main body; And a washing ring having a scraper in contact with the ultraviolet ray generating device to remove contaminants. Bubble floating type UV sterilizer using ultraviolet rays and micro-bubbles, characterized in that the washing ring is coupled to the moving member so as to flow relative to the moving member in the process of moving the washing ring along the outside of the ultraviolet generating device. . (delete) (delete)

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