KR101120870B1 - Chamber type ultra violet sterilizer - Google Patents

Abstract

PURPOSE: An ultraviolet ray-based sterilizer in correspondent to the quantity of flow is provided to adaptively correspond to the quality of sterilizing water by using a plurality of optimally designed chambers. CONSTITUTION: A plurality of chambers(11) with ultraviolet-ray lamps is prepared. Water introducing lines(20) with a plurality of introducing valves(21) are in connection with one side of the chambers. Water discharging lines(30) with a plurality of discharging valves(31) are in connection with another side of the chamber. A flow meter(40) checks the quality of water through the water introducing lines by being combined with the water introducing lines. An ultraviolet-ray sensor(50) is combined with the chambers and detects the ultraviolet ray transmittance in the chambers. A controller controls the operations of the valves.

Description

Flow type ultraviolet sterilizer {Chamber type ultra violet sterilizer}

The present invention relates to a flow-responsive ultraviolet sterilizer, and more particularly, to a flow rate-compatible type capable of adaptively responding to a flow rate of water to be sterilized by flowing by using a plurality of optimized designed chambers, thereby improving sterilization efficiency. Relates to an ultraviolet sterilizer.

In general, water can be classified into various types such as drinking water, agriculture, or industrial purpose, depending on the purpose of use. Among them, in particular, water used for drinking water or washing face that is closely related to human life, Maintaining is the most important thing.

If the water used for drinking or washing / washing / flushing is not clean, many invisible bacteria can increase the risk of various diseases such as abdominal pain, diarrhea and vomiting.

In order to prevent such diseases from occurring in advance, various filters such as activated carbon filters, micro filters, and membrane filters are conventionally applied to filter out foreign substances contained in raw water, or included in water using ultraviolet (UV) lamps. By sterilizing / treating bacteria such as Escherichia coli present, water can be used with confidence.

However, such a conventional sterilizer has a straight line from the inlet to the sterilizer and the outlet to move the water, and the UV irradiation time is short for the flowing water at high speed to completely remove biological bacteria. There is a problem that can not be sterilized.

For example, as the flow rate flowing from the outside rapidly increases, the flow rate also increases. As a result, the raw water, which has a relatively short time for sterilization, eventually becomes sterilized. Uncompleted discharges through the outlet do not provide sufficient sterilization effect.

In addition, since a large amount of sludge exists in the inner wall of the pipe to which the water moves or in the water, there is a problem that it is difficult to maintain a clean state due to foreign substances even if the water is sterilized and treated by ultraviolet rays. In addition, as the power motor that supplies power to the submersible pump is located close to the device, when flooding, it is frequently caused by the failure of the motor, causing the burden of replacement cost and inconvenience of equipment replacement. .

In order to solve this problem, Korean Patent Office Registration No. 10-0855201 discloses a tube type ultraviolet sterilizer. The disclosed technology provides a function of sterilizing and disinfecting harmful microorganisms such as E. coli, general bacteria, and bacteria in water by using the germicidal power of an ultraviolet lamp.

However, since the UV sterilizer of the prior art, including the technology disclosed in the above literature, has typically used only one pipe-type chamber, for example, when a large amount of water passes at a high speed, the time of exposure to ultraviolet light emitted from the ultraviolet lamp is increased. Since there is a problem that the sterilization efficiency is reduced because it can be discharged short or not exposed at all, there is a need for a structural improvement that can adapt to the flow rate.

Korea Patent Office Registration No. 10-0855201

An object of the present invention is to provide a flow rate-adaptive ultraviolet sterilizer capable of adaptively responding to the water flow rate of the sterilization target to be introduced by using a plurality of optimized designed chambers to improve sterilization efficiency.

The above object is, a plurality of chambers each provided with an ultraviolet lamp for irradiating ultraviolet rays toward the water to be sterilized; A water inflow line connected to one side of the chambers to form a flow path through which water is introduced into the chambers, the plurality of inflow opening / closing valves corresponding to each of the chambers; A water discharge line connected to the other sides of the chambers to form a flow path through which water from the chambers is discharged, and a plurality of discharge opening / closing valves are provided to correspond to each of the chambers; A flow meter coupled to the water inlet line for checking a flow rate of water flowing along the water inlet line; An ultraviolet sensor coupled to the chambers to detect ultraviolet transmittance within the chambers; And turning on the plurality of inlet on / off valves and the plurality of outlet on / off valves based on at least one of a flow rate value checked by the flow meter, a cumulative usage time value of the ultraviolet lamp, and an ultraviolet transmittance from the ultraviolet sensor. It is achieved by a flow-responsive UV sterilizer characterized by including a controller for controlling on / off operation.

The plurality of chambers may include a main chamber and a subchamber, and the plurality of inflow on / off valves may include a first inflow on / off valve and a second inflow on / off valve respectively corresponding to the main chamber and the subchamber. The plurality of discharge open / close valves may include a first discharge open / close valve and a second discharge open / close valve respectively corresponding to the main chamber and the sub chamber.

The controller may be configured to turn off the second inflow on / off valve and the second discharge on / off valve when the flow rate value checked on the flow meter is equal to or less than a predetermined value, and the first inflow on / off valve and the first discharge on / off valve. Control to turn on, and when the flow rate value checked in the flow meter is greater than or equal to a predetermined value, the second inlet on / off valve and the second outlet on / off valve may be controlled to be further turned on. .

The controller may include the first and second inlet opening / closing valves and the first and second switches so that the roles of the main chamber and the sub chamber are interchanged when the cumulative usage time value of the ultraviolet lamp reaches a predetermined value. The on / off operation of the discharge shutoff valve can be controlled.

The controller may control to turn on both the first and second inlet on / off valves and the first and second outlet on / off valves when the ultraviolet light transmittance sensed by the ultraviolet sensor is equal to or less than a predetermined value. Can be.

A quartz tube for protecting the ultraviolet lamp; A cleaning wiper coupled to an outer surface of the quartz tube so as to be movable along the longitudinal direction of the quartz tube to wash the outer surface of the quartz tube; And a cleaning wiper moving part connected to the cleaning wiper to move the cleaning wiper along a length direction of the quartz tube, but having an indirect coupling method.

The cleaning wiper moving unit may include an inner magnetic disk disposed inside the chamber such that an outer surface thereof contacts the inner surface of the chamber; A ball screw connected to the inner magnetic disk and disposed to extend in the longitudinal direction of the chamber; A movable nut supporting the cleaning wiper on one side and screwed to the ball screw to move along the length direction of the ball screw when the ball screw is rotated; An outer magnetic disk disposed on an outer surface of the chamber at a position where the inner magnetic disk is disposed and fixed to the inner magnetic disk by magnetic force; And it may include a rotational power providing unit for providing power for the rotation of the external magnetic disk.

One side of the chambers may be further provided with a sludge discharge.

According to the present invention, it is possible to adaptively respond to the water flow rate of the sterilization target to be introduced by using a plurality of optimized designed chambers to improve the sterilization efficiency.

1 is a side view of a flow-responsive ultraviolet sterilizer according to an embodiment of the present invention;
Fig. 2 is a plan view of Fig. 1,
3 is a schematic perspective view of the main chamber area,
4 is a modified embodiment of the cleaning wiper,
5 is an enlarged view of the region A shown in FIG. 3,
6 is a configuration diagram in which the main chamber and the sub chamber are connected by a chain;
7 is a control block diagram of a flow-responsive ultraviolet sterilizer according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a side view of a flow-responsive UV sterilizer according to an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, FIG. 3 is a schematic perspective view of a main chamber region, FIG. 4 is a modified embodiment of the cleaning wiper, and FIG. 5 3 is an enlarged view of a region A shown in FIG. 3, FIG. 6 is a configuration diagram in which a main chamber and a subchamber are connected by a chain, and FIG. 7 is a control block of a flow-responsive UV sterilizer according to an embodiment of the present invention. It is also.

As shown in these figures, the flow-responsive ultraviolet sterilizer of the present embodiment includes a plurality of chambers 11 and 12, a water inflow line 20, a water discharge line 30, a flow meter 40, and an ultraviolet sensor 50. ) And the controller 60 (see FIG. 7).

The plurality of chambers 11 and 12 are pipes through which water to be sterilized, that is, sewage or wastewater. Although the chambers 11 and 12 have a cylindrical structure in the drawings, the shapes of the chambers 11 and 12 need not be limited to the drawings.

In the present embodiment, the chambers 11 and 12 include a main chamber 11 and a subchamber 12. That is, two sets of the main chamber 11 and the sub chamber 12 are arranged in a pair as shown in FIGS. 1 and 2.

Sterilization process is carried out through the main chamber 11 only when the flow rate is low or normal, but sterilization through both the main chamber 11 and the subchamber 12 when the flow rate is excessive or other conditions as follows. Proceed with the process.

As a result, this embodiment is a sterilizer capable of adaptively responding to the flow rate of water even if the flow rate of the water to be sterilized is small or large, there is an advantage that can improve the sterilization efficiency than the prior art.

For reference, in the present exemplary embodiment, two sets of the main chamber 11 and the sub chamber 12 are described as being arranged in a pair, but three or more chambers may be arranged in a pair.

The sludge discharge part 15 is provided at one side of the main chamber 11 and the subchamber 12. Since the sludge discharge part 15 is provided, sludge may be discharged at regular intervals. Therefore, the foreign matter is caught in the movable nut 83 (see FIG. 3), which will be described later, and thus the movement of the movable nut 83 is restricted when the ball screw 82 is rotated (see FIG. 3). The damage to 13) can be prevented.

The main chamber 11 and the sub chamber 12 have the same structure. Referring to FIGS. 3 and 5, in the main chamber 11 and the subchamber 12, ultraviolet lamps 13 for irradiating ultraviolet rays toward water to be sterilized are provided therein, respectively.

The ultraviolet lamp 13 which sterilizes water while irradiating ultraviolet rays can be protected by a transparent or translucent quartz tube 14, as shown in FIG. One or more ultraviolet lamps 13 may be disposed in one quartz tube 14, and one or several quartz tubes 14 may also be disposed in the main chamber 11 and the sub chamber 12, respectively. .

The water inflow line 20 is connected to one side of the main chamber 11 and the sub chamber 12 to form a flow path through which water flows into the main chamber 11 and the sub chamber 12.

The water inlet line 20 is provided to correspond to the main chamber 11 and the sub chamber 12, respectively, the first inlet opening / closing valve 21 to control the inflow of water toward the main chamber 11 and the sub chamber 12. And a second inlet opening / closing valve 22. The first inlet on / off valve 21 and the second inlet on / off valve 22 may be solenoid valves that are automatically turned on / off by the controller 60.

The water discharge line 30 is connected to the other side of the main chamber 11 and the sub chamber 12 to form a flow path through which water from the main chamber 11 and the sub chamber 12 is discharged.

The water discharge line 30 is provided to correspond to the main chamber 11 and the sub chamber 12, respectively, the first discharge opening and closing valve 31 to control the discharge of water from the main chamber 11 and the sub chamber 12 And a second discharge open / close valve 32. The first discharge valve 31 and the second discharge valve 32 may also be a solenoid valve that is automatically turned on / off by the controller 60.

Flow meter 40 is connected to the water inlet line 20, as shown in Figure 1 checks the flow rate of water flowing along the water inlet line (20).

The ultraviolet sensor 50 is coupled to the main chamber 11 and the subchamber 12 to detect ultraviolet light transmittance in the main chamber 11 and the subchamber 12. Low UV transmittance is likely to be contaminated water, so sterilization is required by exposure to UV rays as much as possible in flowing water.

On the other hand, the controller 60 (refer to FIG. 7) has a value of at least one of the flow rate value checked by the flow meter 40, the cumulative usage time value of the ultraviolet lamp 13, and the ultraviolet transmittance from the ultraviolet sensor 50. On / off operation of the first and second inlet on / off valves 21 and 22 and the first and second outlet on / off valves 31 and 32 is controlled based on the above.

First, the controller 60 turns on / off the first and second inlet on / off valves 21 and 22 and the first and second outlet on / off valves 31 and 32 based on the flow rate value checked by the flowmeter 40. (on / off) Controls the behavior.

When the flow rate value checked in the flow meter 40 is less than or equal to the predetermined value, the controller 60 turns off the second inflow on / off valve 22 and the second discharge on / off valve 32 and opens the first inflow on / off valve ( 21 and the first discharge valve 31 are turned on. At this time, since the flow rate is small or constant, the sterilization process is performed only through the main chamber 11.

However, the controller 60 additionally turns on the second inlet on / off valve 22 and the second outlet on / off valve 32 when the flow rate value checked on the flowmeter 40 is greater than or equal to a predetermined value. The sterilization process is performed through both the 11 and the subchamber 12.

In other words, when the flow rate is large, when the sterilization process is performed through the main chamber 11 as in the prior art or a large amount of water passes at a high speed, the time for which the ultraviolet light is irradiated by the ultraviolet lamp 13 is short or not at all. It can be discharged unexposed to reduce sterilization efficiency. Therefore, in this case, the controller 60 allows the sterilization process to proceed through both the main chamber 11 and the sub chamber 12.

Next, the controller 60 turns on the first and second inlet on / off valves 21 and 22 and the first and second outlet on / off valves 31 and 32 based on the cumulative usage time value of the ultraviolet lamp 13. This is the case when the on / off operation is controlled.

For example, the setting of the main chamber 11 and the subchamber 12 may be alternated at intervals of the cumulative use time of the ultraviolet lamp 13 disposed therein.

In other words, since the controller 60 counts the cumulative usage time of the ultraviolet lamps 13 provided in each of the main chamber 11 and the subchamber 12, for example, the ultraviolet rays of the main chamber 11 are provided. When the cumulative use time of the lamp 13 reaches 1000 hours, the roles of the main chamber 11 and the subchamber 12 are changed so that the subchamber 12 set as the sub may serve as the main. This is performed through on / off operation control of the first and second discharge on / off valves 31 and 32. Therefore, the changed setting enables the subchamber 12 to operate as the main until the cumulative usage time of the ultraviolet lamp 13 therein becomes 1000 hours.

In this case, both sets of the ultraviolet lamps 13 can be used until the lifetime of the ultraviolet lamps 13, which have a total service life of 12000 hours, can increase the replacement cycle of the ultraviolet lamps 13.

Finally, the controller 60 turns on / off the first and second inlet on / off valves 21 and 22 and the first and second outlet on / off valves 31 and 32 based on the ultraviolet transmittance from the ultraviolet sensor 50. This is the case when controlling on / off operation.

In this case, when the ultraviolet ray transmittance sensed by the ultraviolet sensor 50 is equal to or less than a predetermined value, the controller 60 may include the first and second inflow on / off valves 21 and 22 and the first and second outlet on / off valves 31. , 32) controls to turn on all of them.

In other words, if the transmittance sensed by the ultraviolet sensor 50 is detected to be 65% or less, for example, even if the flow rate is low, the controller 60 may sterilize the process through both the main chamber 11 and the sub chamber 12. Can be set to

As described above, since the low UV transmittance is contaminated water, it is necessary to sterilize it by exposing it to ultraviolet rays as much as possible, so even though the flow rate is not high, water is discharged through both the main chamber 11 and the sub chamber 12. Because it is necessary to sterilize.

As illustrated in FIG. 7, the controller 60 performing this role includes a central processing unit 61 (CPU), a memory 62 (MEMORY), and a support circuit 63 (SUPPORT CIRCUIT).

The CPU 61 may be one of various computer processors that can be industrially applied to control the flow-responsive ultraviolet sterilizer of the present embodiment. The memory 62 (MEMORY) is operatively connected with the CPU 61. The memory 62 may be installed locally or remotely as a computer-readable recording medium, and may be readily available, such as, for example, random access memory (RAM), ROM, floppy disk, hard disk, or any digital storage form. At least one or more memories. The support circuit 63 (SUPPORT CIRCUIT) is operatively coupled with the CPU 61 to support typical operation of the processor. Such support circuit 63 may include a cache, a power supply, a clock circuit, an input / output circuit, a subsystem, and the like.

For example, in the flow-responsive ultraviolet sterilizer according to the present embodiment, at least one of the flow rate value checked by the flow meter 40, the cumulative use time value of the ultraviolet lamp 13, and the ultraviolet transmittance from the ultraviolet sensor 50. A series of processes for controlling the on / off operation of the first and second inlet on / off valves 21 and 22 and the first and second outlet on / off valves 31 and 32 based on the value of This memory 62 can be stored. Typically software routines may be stored in memory 62. The software routine may also be stored or executed by another CPU (not shown), which may be located remotely from the UV sterilizer.

Although the process according to the invention has been described as being executed by software routines, at least some of the processes of the invention may be performed by hardware. As such, the processes of the present invention may be implemented in software executed on a computer system, or in hardware such as an integrated circuit, or in combination of software and hardware.

On the other hand, since the quartz tube 14 is a transparent quartz material, the outer surface of the quartz tube 14 may be contaminated by sewage or waste water. If the outer surface of the quartz tube 14 is contaminated, ultraviolet ray irradiation efficiency or ultraviolet ray intensity may be contaminated. Detecting efficiency is bound to fall. To prevent this, the following structure applies.

3 to 5, a cleaning wiper 70 coupled to the outer surface of the quartz tube 14 to be movable along the longitudinal direction of the quartz tube 14 to wash the outer surface of the quartz tube 14 is provided. Prepared. The cleaning wiper 70 is applied as many as the number of quartz tubes 14.

This cleaning wiper 70 is connected to the cleaning wiper moving part 80 for moving the cleaning wiper 70 along the longitudinal direction of the quartz tube 14, as shown in FIG. 3. The cleaning wiper 70 may be moved along the longitudinal direction of the quartz tube 14 by the cleaning wiper moving part 80 to clean the outer surface of the quartz tube 14.

Although FIG. 3 shows that the cleaning wiper 70 is applied to the main chamber 11, the same structure as that of FIG. 3 is applied to the subchamber 12.

Meanwhile, the cleaning wiper 70 illustrated in FIG. 3 may be applied to the cleaning wiper 170 illustrated in FIG. 4. The cleaning wiper 70 shown in FIG. 3 has a problem in that a plurality of parts are assembled by screwing so that a volume is larger than that of the cleaning wiper 170 shown in FIG. 4 and the assembly process is delayed. Thus, as shown in (a) of FIG. 4, the cleaning ring 173 is inserted into the slit 172 formed over a predetermined section along the circumferential direction of the cleaning wiper housing 171 to thereby form the cleaning ring 173. As shown in (b) of FIG. 1, the cleaning wiper housing 171 may be disposed on an inner wall thereof. Since the cleaning ring 173 may be made of a rubber material, there is no inconvenience in being inserted into the cleaning wiper housing 171 through the slit 172. Therefore, when the cleaning wiper 170 is formed in the form as shown in FIG. 4, unlike FIG. 3, the number of parts may be reduced, thereby simplifying the assembly method, and the volume may also be reduced.

Referring back to FIG. 3, the cleaning wiper moving part 80 includes an inner magnetic disk 81 disposed inside the main chamber 11 so that the outer surface contacts the inner surface of the main chamber 11, and an inner magnetic disk ( 81 is connected to the ball screw 82 is arranged long along the longitudinal direction of the main chamber 11, and supports the cleaning wiper 70 on one side, the ball screw 82 is screwed connected to the ball screw ( A movable nut 83 which is moved along the longitudinal direction of the ball screw 82 and the inner magnetic disk 81 is disposed on the outer surface of the main chamber 11 at the position where the inner magnetic disk 81 is disposed when the 82 is rotated. And an external magnetic disk 84 which is fixed by the attraction force of the magnetic force, and a rotational power providing unit 85 that provides power for the rotation of the external magnetic disk 84.

For reference, in the past, in order to drive the cleaning device of the quartz tube 14, the mechanical seal was driven and coupled with a motor using a component (not shown), but the mechanical seal is coupled to a site where high pressure may cause leakage. There are disadvantages. Since the mechanical seal is a cap structure, it must be bonded directly to the housing, which causes leakage at the joining site.

However, when switching from the direct coupling method to the indirect coupling method using the inner magnetic disk 81 and the outer magnetic disk 84 as in the present embodiment, there is an effect that the leakage phenomenon does not occur because there is no coupling area.

In other words, in the present embodiment, the inner magnetic disk 81 and the outer magnetic disk 84 are positioned on the inner surface and the outer surface with the main chamber 11 interposed therebetween so as to be strong of the high strength magnets 81a and 84a provided therein. Due to the magnetic force, the inner magnetic disk 81 and the outer magnetic disk 84 can be fixed to each other body to prevent the original leakage phenomenon. The inner magnetic disk 81 and the outer magnetic disk 84 have the same structure with only different sizes.

As such, the inner magnetic disk 81 and the outer magnetic disk 84 form a body by an indirect coupling method by magnetic force. In this state, the rotational power providing unit 85 has an external magnetic outside of the main chamber 11. Rotating the disk 84 transmits its rotational motion to the inner magnetic disk 81 to rotate the ball screw 82, which causes the movable nut 83 connected to the ball screw 82 to wash the wiper 70. The outer surface of the quartz tube 14 can be cleaned by the cleaning wiper 70 by being able to move along the lengthwise direction of the ball screw 82.

On the other hand, as described above, the inner magnetic disk 81 and the outer magnetic disk 84 may be provided separately in both the main chamber 11 and the sub chamber 12, as shown in Figure 6 the main chamber 11 and the sub External magnetic disks 84, which are individually equipped in both chambers 12, can be connected by chains 86 and rotated together by a single motor 87 shown in FIGS. At this time, the combination of the chain 86 and the motor 87 may form a rotational power providing unit 85. Of course, this is an example, and individual drive motors may be applied.

As described above, according to the present embodiment, even if the water flow rate of the sterilization target to be introduced is small or large, the flow rate of the water can be adaptively applied to improve the sterilization efficiency.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

11: main chamber 12: sub chamber
13: ultraviolet lamp 14: quartz tube
20: water inlet line 30: water outlet line
40: flow meter 50: ultraviolet sensor
60: controller 70: cleaning wiper
80: cleaning wiper moving portion 81: the inner magnetic disk
82: ball screw 83: removable nut
84: external magnetic disk 85: rotational power providing unit
86: chain 87: motor

Claims (8)

A plurality of chambers each provided with an ultraviolet lamp for irradiating ultraviolet rays toward the water to be sterilized;
A water inflow line connected to one side of the chambers to form a flow path through which water is introduced into the chambers, the plurality of inflow opening / closing valves corresponding to each of the chambers;
A water discharge line connected to the other sides of the chambers to form a flow path through which water from the chambers is discharged, and a plurality of discharge opening / closing valves are provided to correspond to each of the chambers;
A flow meter coupled to the water inlet line for checking a flow rate of water flowing along the water inlet line;
An ultraviolet sensor coupled to the chambers to detect ultraviolet transmittance within the chambers; And
On / off of the plurality of inlet on / off valves and the plurality of outlet on / off valves based on at least one of a flow rate value checked in the flow meter, a cumulative use time value of the ultraviolet lamp, and an ultraviolet transmittance from the ultraviolet sensor. A controller that controls the on / off behavior,
Each of the plurality of chambers
A quartz tube for protecting the ultraviolet lamp;
A cleaning wiper coupled to an outer surface of the quartz tube so as to be movable along the longitudinal direction of the quartz tube to wash the outer surface of the quartz tube; And
In addition, the cleaning wiper is connected to move the cleaning wiper in the longitudinal direction of the quartz tube further comprises a cleaning wiper moving unit to which an indirect coupling method is applied,
The cleaning wiper moving unit,
An inner magnetic disk disposed inside the chamber such that an outer surface thereof contacts the inner surface of the chamber;
A ball screw connected to the inner magnetic disk and disposed to extend in the longitudinal direction of the chamber;
A movable nut supporting the cleaning wiper on one side and screwed to the ball screw and moving along the length direction of the ball screw when the ball screw is rotated;
An outer magnetic disk disposed on an outer surface of the chamber at a position where the inner magnetic disk is disposed and fixed to the inner magnetic disk by magnetic force; And
Rotational power providing unit for providing power for the rotation of the external magnetic disk,
The rotational power supply unit provides the rotational power of the external magnetic disk to a single motor by connecting the external magnetic disk provided in each of the plurality of chambers using a chain,
The washing wiper is,
Ring-shaped washing ring made of rubber material; And
Including a ring-shaped cleaning wiper housing in which a slit is formed in a predetermined section along the circumferential direction so that the cleaning ring can be inserted, the cleaning ring inserted into the cleaning housing through the slit is disposed on the inner wall of the cleaning housing A flow-responsive ultraviolet sterilizer for cleaning the outer surface of a quartz tube. The method of claim 1,
The plurality of chambers includes a main chamber and a sub chamber,
The plurality of inflow on / off valves include a first inflow on / off valve and a second inflow on / off valve respectively corresponding to the main chamber and the subchamber.
The plurality of discharge opening and closing valves flow rate response ultraviolet sterilizer, characterized in that it comprises a first discharge opening and closing valve and a second discharge opening and closing valve respectively corresponding to the main chamber and the sub-chamber. The method of claim 2,
The controller,
When the flow rate value checked by the flow meter is equal to or less than a predetermined value, the second inflow on / off valve and the second discharge on / off valve are turned off and the first inflow on / off valve and the first outlet on / off valve are turned on. To control it,
If the flow rate value checked in the flow meter is more than a predetermined value, flow-responsive UV sterilizer characterized in that the control to further turn on (2) the second inlet on-off valve and the second outlet on-off valve. The method of claim 2,
The controller may include the first and second inlet opening / closing valves and the first and second switches so that the roles of the main chamber and the sub chamber are interchanged when the cumulative usage time value of the ultraviolet lamp reaches a predetermined value. A flow-responsive UV sterilizer for controlling on / off operation of the discharge shutoff valve. The method of claim 2,
The controller is configured to control to turn on both the first and second inlet on / off valves and the first and second outlet on / off valves when the ultraviolet light transmittance sensed by the ultraviolet sensor is equal to or less than a predetermined value. Flow-responsive ultraviolet sterilizer, characterized in that. delete delete The method of claim 1,
Flow-responsive UV sterilizer, characterized in that the sludge discharge portion is further provided on one side of the chambers.

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