JP2009082774A - Ultraviolet water treatment system, and ultraviolet water treatment device and remote monitoring device used for this system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent abnormality and trouble causing an ultraviolet water treatment system to shut down. <P>SOLUTION: The intensity of illumination measured by an ultraviolet illuminometer 29 installed in an ultraviolet water treatment device 7 of the ultraviolet water treatment system for treating clean water is taken in and recorded in a memory of a control panel 17. The recorded intensity of illumination is periodically transmitted from a communication terminal 19 connected to the control panel 17 to a control server 20 through an internet 21. The control server 20 compares the received intensity of illumination to predetermined set values, and when the intensity of illumination becomes equal to or less than either of the set values, it outputs an alarm corresponding to the set value. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an ultraviolet water treatment apparatus, and more particularly, to a technique for remotely monitoring the operation status of an ultraviolet water treatment apparatus.

  In the treatment of clean water, the raw water stored in the intake basin is filtered with a filter, disinfected, sterilized, decomposed organic matter, etc. with an ultraviolet water treatment device, injected with chlorine, and then stored in a clean water pond or directly What is distributed to each user is known.

  The ultraviolet water treatment apparatus used for such water treatment is an illuminance in which a cylindrical container through which the clean water flows and an illuminance meter that extends in the axial direction in the container and measures ultraviolet illuminance is inserted. It comprises a meter protection tube and a plurality of lamp protection tubes that are arranged in a circle in parallel with the illuminance meter protection tube as an axis, and in which an ultraviolet lamp is housed (for example, Patent Document 1).

  Such UV water treatment devices are sometimes installed in remote mountainous areas, etc., and it is difficult for an administrator to be permanently stationed. Yes.

JP2007-155546A

  By the way, clean water is a lifeline, and it is not allowed to cause a situation such as water outage due to abnormality of the ultraviolet water treatment system. For example, when an ultraviolet lamp is burned out, it takes time to procure the lamp and prepare workers to go to the site. This is desirable because it can avoid water interruption. However, conventionally, no consideration has been given to preventing abnormalities and failures leading to the shutdown of the ultraviolet water treatment system.

  This invention makes it a subject to prevent the abnormality and failure which an ultraviolet-ray water treatment system stops.

  In order to solve the above problems, the ultraviolet water treatment system of the present invention includes an ultraviolet water treatment device for treating clean water, and a control for recording the illuminance measured by the ultraviolet illuminance meter provided in the ultraviolet water treatment device in a memory. A remote monitoring device connected to the control panel via a communication network, the control panel transmits the illuminance recorded in the memory to the remote monitoring device via the communication network, and the remote monitoring device receives The illuminance is compared with a set value set in advance, and when the illuminance falls below the set value, an alarm corresponding to the set value is output.

  As a result, it is possible to remotely monitor the change in the illuminance of the ultraviolet lamp over time, predict the deterioration of the ultraviolet lamp, and implement countermeasures promptly, thus preventing abnormalities or failures in the ultraviolet water treatment apparatus. Can do.

  In this case, the remote monitoring device periodically obtains the illuminance change rate of the received illuminance, compares the illuminance change rate with one or more preset change rates, and the illuminance change rate is equal to or greater than the set change rate. By outputting an alarm corresponding to the set change rate when the error occurs, a failure or abnormality of the ultraviolet water treatment device corresponding to the set change rate such as running out of balls can be detected quickly.

  Moreover, if the remote monitoring device measures the cumulative time of the UV lamp lighting time and outputs an alarm when the cumulative time reaches 90% of the UV lamp life time, it can predict the replacement time of the UV lamp. Therefore, it is possible to cope with the ultraviolet lamp before it reaches the end of its life, and the maintenance can be facilitated.

  Also, a spare ultraviolet lamp is provided, and the remote monitoring device outputs a command to turn on the spare ultraviolet lamp to the control panel via the communication network when the illuminance falls below a predetermined set value. It may be. In this way, it is possible to avoid stopping the ultraviolet water treatment apparatus even if the ultraviolet lamp runs out.

  In addition, the control panel can compare the illuminance with a preset set value and output an alarm corresponding to the set value when the illuminance falls below the set value.

  ADVANTAGE OF THE INVENTION According to this invention, the abnormality and failure which an ultraviolet-ray water treatment system stops can be prevented beforehand.

  Hereinafter, the present invention will be described based on embodiments.

(Embodiment 1)
The overall configuration of the ultraviolet water treatment system of this embodiment will be described with reference to FIG. FIG. 1 is a conceptual configuration diagram of an ultraviolet water treatment system according to an embodiment of the present invention. As shown in the drawing, the ultraviolet water treatment system of the present embodiment includes a landing well 1 from which treated water as raw water is taken, a filter 2 that rapidly filters the treated water taken into the landing well 1, and a surplus in the system. A drainage basin 3 is provided for discharging the treated water. The treated water that has passed through the filter 2 passes through the turbidimeter 4 and the ultraviolet transmittance monitor 5 and is then introduced into the two ultraviolet water treatment devices 7. A flow meter 9 is provided on each inflow side of the ultraviolet water treatment device 7. The treated water that has passed through the ultraviolet water treatment device 7 is injected with chlorine from the chlorine injection tank 11, stored in the water purification tank 13, and then sent to a distribution reservoir or the like. One or a plurality of ultraviolet water treatment apparatuses 7 can be provided as necessary.

The ultraviolet water treatment device 7 includes a control panel 17 connected to the ultraviolet water treatment device 7 and a DMIP (Device connected to the control panel 17.
Management Internet
Platform) communication terminal 19 such as a terminal. The management server 20 is connected to the communication terminal 19 via the Internet 21, and a monitor 22 is connected to the management server 20. In this manner, data transmission / reception between the control panel 17 and the management server 20 is enabled. The management server 20 is linked with the monitoring software so as to remotely monitor and manage the ultraviolet water treatment system. A plurality of communication terminals 19 can be provided as necessary.

  The detailed configuration of the ultraviolet water treatment apparatus according to this embodiment will be described with reference to FIG. FIG. 2A is a top sectional view showing a schematic configuration of the ultraviolet water treatment apparatus according to one embodiment of the present invention, and FIG. 2B is a side view showing a schematic configuration of the ultraviolet water treatment apparatus. As illustrated, the ultraviolet water treatment apparatus 7 includes a cylindrical treatment tank 23 through which treated water flows. The processing tank 23 is formed of a corrosion-proof material, for example, a metal such as stainless steel or aluminum.

  The treatment tank 23 is provided with a plurality of ultraviolet lamps 25 along the extending direction of the treatment tank 23 for irradiating the treatment water flowing therethrough with ultraviolet rays. The ultraviolet lamp 25 is inserted into a cylindrical lamp protection tube 27 whose one end is closed in a hemispherical shape. An illuminance meter 29 that measures the ultraviolet illuminance irradiated from the ultraviolet lamp 25 is provided on the cylindrical axis A in the processing tank 23. The illuminometer 29 is inserted into a cylindrical illuminometer protective tube 31 whose one end is closed in a hemispherical shape.

  Inside the treatment tank 23, a temperature sensor 33 for measuring the temperature of the treated water is provided. A water leak sensor 35 is provided at the closed end of the illuminometer protective tube 31 and the lamp protective tube 27 which are closed in a hemispherical shape. The illuminometer protection tube 31 and the lamp protection tube 27 are provided with a dry air supply device (not shown) such as an air pump for supplying dry air therein. In addition, a cleaning device including a cleaning unit 37 for cleaning the illuminance meter protection tube 31 and the lamp protection tube 27 and a driving device 38 for driving the cleaning unit 37 is provided. The driving device 38 is included in a driving device housing box 39.

  The ultraviolet water treatment device 7 receives treated water from the treated water inlet 41 at the end of the treatment tank 23 where the driving device 38 is not provided, and disinfects the microorganisms in the water by ultraviolet irradiation inside the treatment tank 23. Sterilization, killing, decomposition of organic substances, and the like are performed, and the treated water flows out from the treated water outlet 43 formed in the body portion of the treatment tank 23. Here, the treated water inlet 41 may be formed near the end of the body of the treatment tank 23 on the side where the treated water outlet 43 is not formed to allow the treated water to flow therethrough.

  In this way, an ultraviolet irradiation chamber 23 a in which the ultraviolet lamp 25 and the illuminance meter 29 are installed is formed inside the processing tank 23. In the present embodiment, the ultraviolet water treatment device 7 is installed horizontally on the device mounting base 45, but the present invention is not limited to this, and the ultraviolet water treatment device 7 is installed vertically. It is also possible.

  The illuminometer protection tube 31 and the lamp protection tube 27 are made of an ultraviolet light transmissive material such as quartz glass or Teflon (registered trademark) resin. Further, an ultraviolet resistant fluorine resin may be coated for the purpose of preventing scattering when the protective tube is broken. At this time, in order to improve the adhesive force between the quartz glass and the resin, for example, a shot blast of about 30 μm may be applied to the glass surface.

  The illuminance meter 29 has a light receiving surface formed of a wavelength conversion element that converts ultraviolet light into visible light, and the converted visible light is transmitted to a photoelectric conversion amplifier via an optical fiber (not shown). . Then, it is converted into a voltage value corresponding to the intensity of visible light by the photoelectric conversion amplifier, that is, a voltage value corresponding to the illuminance of ultraviolet rays, and an effective irradiation amount corresponding to the ultraviolet illuminance or ultraviolet illuminance is detected.

  The wavelength conversion element of the illuminometer 29 can also be formed by mixing a fluorescent material with a synthetic resin such as acrylic or polycarbonate. Furthermore, the wavelength conversion element is formed by forming a layer in which the fluorescent material is mixed on the surface layer portion of the wavelength conversion element substrate made of quartz glass or synthetic resin in which the fluorescent material is not mixed. It can also be formed by applying a fluorescent material on the surface of the element substrate.

  Six lamp protection tubes 27 are arranged concentrically with respect to the cylindrical axis A of the processing tank 23. One end thereof is held by a lamp holder fixed to the end plate 46, and the other end is fixed to the head flange 53.

  The illuminometer protective tube 31 is disposed on the cylindrical axis A of the processing tank 23. Similarly to the lamp protection tube 27, one end is held by a lamp holder fixed to the end plate 46, and the other end is fixed to the head flange 53.

  Thus, by arranging the illuminance meter protection tube 31 on the cylindrical axis A of the treatment tank 23 and arranging the lamp protection tube 27 concentrically with the illuminance meter protection tube 31, the average illuminance in the treatment tank 23 is obtained. Is set to be maximum, and the ultraviolet intensity can be measured at an equal distance from each ultraviolet lamp 25.

  The treatment tank 23 is provided with a guide bar 55 for guiding the movement of the cleaning unit 37 in the longitudinal direction. One end of the guide bar 55 is fixed to the end plate 46, and the other end is fixed to the head flange 53.

  By the way, in the ultraviolet water treatment apparatus 7, dissolved substances contained in the treated water passing through the treatment tank 23 adhere to the outer surfaces of the lamp protection tube 27 and the illuminance meter protection tube 31, and the treated water is irradiated by this deposit. The amount of ultraviolet rays to be reduced decreases the processing effect, and an error occurs in the measurement illuminance. In order to suppress this adverse effect, in this embodiment, a cleaning unit 37 for removing dirt on the outer surfaces of the lamp protection tube 27 and the illuminance meter protection tube 31 is provided.

  The cleaning unit 37 includes a cleaning frame 57 that is spaced apart in the direction of the cylindrical axis A. The lamp protection tube 27, the illuminance meter protection tube 31, and the guide rod 55 are inserted into the cleaning frame 57, respectively. Through holes are formed. Further, a feed screw that is connected to the driving device 38 and through which a feed screw (not shown) that moves the cleaning unit 37 along the cylindrical axis A is inserted is provided.

  Each of the through holes of the cleaning frame 57 is provided with a flexible removing member that comes into contact with the outer surfaces of the lamp protection tube 27 and the illuminance meter protection tube 31. The removal member can be made of a resin such as rubber having elasticity, UV resistance, corrosion resistance, or the like, or a synthetic resin. The removal member has an annular shape so as to contact the outer surfaces of the lamp protection tube 27 and the illuminometer protection tube 31. It is formed and provided in each through hole.

  The drive device 38 includes a drive mechanism 59 having a clutch and a drive motor 61 connected to the drive mechanism 59, and one end of the feed screw is connected to the drive mechanism 59. Further, a rotation sensor 63 for detecting the rotation of the feed screw is provided.

  When the drive motor 61 is driven, the feed screw rotates, and the rotational force is transmitted to the cleaning frame 57 fixed to the feed nut screwed into the feed screw. Then, the cleaning unit 37 moves while sliding on the guide bar 55.

  Since each cleaning frame 57 is provided with a removal member such as rubber formed in an annular shape in accordance with the outer peripheral surfaces of the lamp protection tube 27 and the illuminance meter protection tube 31, Each protective tube can be cleaned by wiping off dirt adhering to the outer surface like a wiper. In addition, the cleaning device appropriately reciprocates the cleaning unit 37 in a single cleaning operation so that the cleaning operation is turned on at regular intervals.

  1 and 2, the control panel 17 includes a turbidimeter 4, an ultraviolet transmittance monitor 5, a flow meter 9, an illuminance meter 29 of the ultraviolet water treatment device 7, a water leak sensor 35, and a temperature sensor. 33, the rotation sensor 63, and the air pump are connected to each other, and the detected data is recorded in the memory of the control panel 17.

  Next, with reference to FIGS. 1 and 2, the detailed configuration of the ultraviolet water treatment system configured as described above will be described together with the operation. As shown in the figure, the treated water taken into the landing well 1 is sent to the filter 2 by a pump or the like (not shown). In the filter 2, the particles which are impurities in the treated water are rapidly filtered by sand filtration or the like. At this time, the surplus treated water in the system is once collected in the drainage basin 3 and then drained.

  The turbidity of the treated water that has passed through the filter 2 is measured by the turbidimeter 4. The treated water that has passed through the turbidimeter 4 is measured for ultraviolet transmittance by the ultraviolet transmittance monitor 5. The treated water that has passed through the ultraviolet transmittance monitor 5 is introduced into the ultraviolet water treatment apparatus 7 after the flow rate is measured by the flow meter 9. The measured values of the turbidimeter 4, ultraviolet transmittance monitor 5 and flow meter 9 are recorded in the memory of the control panel 17.

  The treated water flowing into the treatment tank 23 of the ultraviolet water treatment apparatus 7 is irradiated with ultraviolet rays having a wavelength of 254 nm from the ultraviolet lamp 25 to disinfect, sterilize, and kill microorganisms in the water and decompose organic substances. And bacteria are decomposed. The illuminance meter 29 provided in the processing tank 23 converts ultraviolet rays into visible light by a visible light conversion element, and converts it into a voltage value corresponding to the intensity of the visible light.

  Thereby, the voltage value corresponding to the ultraviolet illuminance detected by the illuminance meter 29 is recorded in the memory of the control panel 17. The measured values of the water leak sensor 35, the temperature sensor 33, the rotation sensor 63, and the air pump of the ultraviolet water treatment device 7 are recorded in the memory of the control panel 17. At this time, when the measurement value is analog data, the A / D converter converts the analog signal into a digital signal.

  The treated water that has passed through the ultraviolet water treatment device 7 is injected with, for example, sodium hypochlorite from the chlorine injection tank 11, and bacteria that have not been removed by the ultraviolet water treatment device 7 are decomposed. The treated water treated in this way is stored in the water purification pond 13 and directly sent to a distribution pond or each household by a water pump (not shown).

  In the control panel 17, the turbidimeter 4, the ultraviolet transmittance monitor 5, the flow meter 9, the illuminance meter 29 of the ultraviolet water treatment device 7, the water leak sensor 35, the temperature sensor 33, the rotation sensor 63, and the air pump recorded in the memory. Each measurement data is converted into serial transmission data by a sequencer built in the control panel 17. The converted serial transmission data is periodically transmitted from the communication terminal 19 to the management server 20 via the Internet 21 and stored according to a command from the management server 20. The management server 20 performs monitoring control of ultraviolet illuminance described below and performs remote monitoring by outputting to the monitor 22.

The monitoring control of the ultraviolet illuminance will be described with reference to FIGS. FIG. 3 is a flowchart showing a procedure for monitoring ultraviolet illuminance according to the present embodiment, and FIG. 4 is an explanatory diagram showing an example of variation in ultraviolet illuminance according to the present embodiment. As shown in FIG. 3, in step S1, the measured ultraviolet illuminance I is taken in and the process proceeds to step S2. In step S2, the illuminance change rate ΔI is calculated periodically. The illuminance change rate ΔI can be obtained from ΔI = I / T using the ultraviolet illuminance I and the sample period T. Also, the illuminance change rate ΔI obtained in this way is compared with _a preset change rate ΔIa. The value of the setting change rate ΔI _a is set when, for example, an illuminance reduction amount Ia corresponding to one ultraviolet lamp occurs during the sample period T, as indicated by a one-dot chain line (a) in FIG. The change rate ΔI _a is obtained from ΔI _a = Ia / T. The actual setting change rate ΔI _a is set lower than ΔI _a in consideration of deterioration of illuminance and the like. In consideration of degradation of illuminance in response to the cumulative time t _p of the lighting time setting change rate [Delta] I _a set multiple values, a setting change rate [Delta] I _a corresponding to the cumulative time t _p and the illuminance change rate [Delta] I May be compared.

Thus by comparing the setting change rate [Delta] I _a the illuminance change rate [Delta] I, since [Delta] I is the ultraviolet lamp 25 when the above [Delta] I _a is likely to be the ball out the process proceeds to step S3. In step S <b> 3, an out-of-ball warning of the ultraviolet lamp 25 is output to the monitor 22. At this time, if a spare ultraviolet lamp is provided in the ultraviolet water treatment apparatus 7 and a command to turn on the spare ultraviolet lamp is output when a ball out warning of the ultraviolet lamp 25 is output, a one-dot chain line ( As shown in b), even if the illuminance is restored and the ultraviolet lamp 25 is blown out, it is possible to avoid stopping the ultraviolet water treatment apparatus 7.

On the other hand, when the illuminance change rate [Delta] I is equal to or less than the set rate of change [Delta] I _a, because there is a low possibility of the ball out of the ultraviolet lamp 25 proceeds to step S4. In step S4, compared with the set value I ₁ of the preset illumination intensity and the measured intensity I, if it is the illuminance I is the set value I ₁ or less prior to the time t ₁ to the device failure or stop Therefore, the process proceeds to step S5. For example, as shown in FIG. 4, when the illuminance I ₀ at the start of ultraviolet irradiation t ₀ is set to 100% as shown in FIG. 4, the set value I ₁ is set to 80%. Is within the normal operating range. On the other hand, when the illuminance I is the set value I ₁ or more repeats step S1.

In step S5, as compared to the measured illuminance I preset the set value I _2, since the illuminance I is the set value I when ₂ or less can not maintain the performance of the device, UV output alarming decrease the flow advances to step S6 Is output to the monitor 22 and the operation of the apparatus is immediately stopped. The set value I _2, for example, 70% of I _0, the illuminance lower limit of the required for the ultraviolet water treatment. On the other hand, since the illuminance I is when the set value I ₂ or more, there is a possibility that some abnormality in degradation or ultraviolet water treatment apparatus of the ultraviolet lamp has occurred, the process proceeds to step S7.

In step S7, a command is output to drive the cleaning device for a predetermined time, and the process proceeds to step S8. In step S8, the illuminance I after driving the cleaning device is measured, and the process proceeds to step S9. In step S9, it compares the illuminance I and setpoint I ₁ captured, when the illuminance I is equal to or smaller than the set value I _1, the process proceeds to step S10. On the other hand, when the illuminance I is the set value I ₁ or more repeats step S1 because the illuminance has been restored by the driving of the cleaning apparatus.

  In step S10, it is determined from the measurement data of the rotation sensor 63 of the cleaning device whether the cleaning device has operated normally. If it is determined that the cleaning device is operating normally, the process proceeds to step S11. On the other hand, if it is determined that the cleaning device is not operating normally, the process proceeds to step S12, and an alarm indicating that the cleaning device is abnormal is output to the monitor 22.

  In step S11, since the illuminance does not recover even if the cleaning device operates normally, it is determined from the data of the turbidimeter 4 whether the turbidity is normal. If it is determined that the turbidity is normal, the process proceeds to step S13. On the other hand, if it is determined that the turbidity is abnormal, the process proceeds to step S14. In step S14, a turbidity abnormality alarm is output to the monitor 22.

  In step S13, in order to check whether or not there is a decrease in illuminance due to condensation, it is determined whether the air pump is operating normally by detecting an operation signal of the air pump. If it is determined that the air pump is operating normally, the process proceeds to step S15. On the other hand, if it is determined that the air pump is abnormal, the process proceeds to step S16. In step S <b> 16, an air pump abnormality alarm is output to the monitor 22.

In step S15, it is determined whether the cumulative time t _p of the lighting time of the ultraviolet lamp 25 has reached the lifetime t _max . If the accumulated time t _p is less than or equal to t _max , the process proceeds to step S17. In step S 17, it is determined that there is some abnormality in the ultraviolet lamp 25, and a lamp abnormality alarm is output to the monitor 22. On the other hand, if the accumulated time t _p is equal to or greater than t _max , the process proceeds to step S18. In step S18, a lamp life warning is output to the monitor 22. In this case, it is necessary to stop the apparatus when the illuminance is 70% or less. At this time, if the spare ultraviolet lamp is turned on by instructing the spare ultraviolet lamp to be turned on, it is possible to avoid stopping the ultraviolet water treatment apparatus 7 even if the ball runs out.

  By performing the illuminance monitoring control in this way, it is possible to remotely monitor the change with time of the illuminance of the ultraviolet lamp 25, so that the deterioration of the ultraviolet lamp 25 can be predicted, and countermeasures can be executed quickly. Abnormality or failure of the processing device 7 can be prevented beforehand. Further, by remotely monitoring the illuminance change rate, it is possible to quickly detect a failure or abnormality of the ultraviolet water treatment device 7 corresponding to a set change rate such as a blowout of the ultraviolet lamp 25.

Further, the management server 20 measures the accumulated time t _p of the lighting time of the ultraviolet lamp, cumulative time t _p to output an alarm when the accumulated time t _p has reached 90% of the lifetime of the ultraviolet lamp The monitoring control may be performed. According to this, since the replacement time of the ultraviolet lamp 25 can be predicted, the arrangement of parts and the maintenance time can be dealt with before the ultraviolet lamp 25 reaches the end of its life, so that the maintenance can be facilitated.

  Table 1 summarizes the factors that cause major failures in the UV water treatment system. Table 2 summarizes the elements that cause minor failures. In this embodiment, the major failure and the minor failure of the device are classified and the detection item, the detection device, and the cause are associated with each other and recorded in the management server 20. From the measurement data obtained from the detection device transmitted to the management server 20, an abnormality of the detection device is determined by the monitoring software, and the cause of the failure is predicted from the detection device having the abnormality. Thereby, a major failure and a minor failure are determined from the cause of the failure.

In this way, by remotely monitoring the elements that make up the UV water treatment system, systematically collecting and analyzing the measured data, and identifying the cause of the abnormality, it is possible to prevent failures leading to equipment shutdown Can do. In addition, since the maintenance time can be grasped by comparing with past data recorded in the management server, the maintenance of the ultraviolet water treatment system can be facilitated.

  In the present embodiment, the illuminance monitoring control is performed by the management server 20, but the same monitoring may be performed by the control panel 17. Thereby, even when the Internet or the like cannot be used, it is possible to grasp the state of the system by outputting data from the control panel 17 when the administrator periodically checks. Further, an external computer connected to the Internet 21 can issue a command to transmit / receive data of the management server 20 and can be remotely monitored.

  As the information transmission means, the Internet is used, but an optimum means such as PHS radio may be used. The control panel 17 and the management server 20 can transmit and receive data to each other and can be remotely monitored in the ultraviolet water treatment system. Anything is acceptable. As a data transfer method, a serial transmission method is used, but a parallel transmission method may be used. An abnormality output from the management server 20 can be transmitted via the Internet 21 as an abnormality location and an abnormality content by e-mail or the like.

In this embodiment, the entire ultraviolet lamp 25 is managed as being out of ball, but individual ultraviolet lamps may be managed. For example, the control panel 17 is provided with a time meter for measuring the cumulative time t _p of the lighting times of the individual ultraviolet lamps 25, and an alarm for prompting the replacement of the ultraviolet lamps 25 is given to the monitor 22 when the cumulative time t _p has passed for a fixed time. Can be output.

  In the ultraviolet water treatment system, the treated water taken in is guided to the ultraviolet water treatment apparatus via the filter 2 or the like, but depending on the state of the raw water, a flocculant (for example, aluminum sulfate) is provided on the upstream side of the filter 2. Or polyaluminum chloride or the like) may be configured to agglomerate and precipitate contaminants, or raw water may be directly taken into the ultraviolet water treatment device. The present invention is not limited to this embodiment.

  As an output form of the alarm, an alarm is output to the monitor 22, but the output form of the alarm is not limited to this, and the blinking of the indicator lamp, the sound of the buzzer, etc. can be appropriately selected.

It is a figure which shows the conceptual structure of the ultraviolet-ray water treatment system of one Embodiment of this invention. It is a figure which shows schematic structure of an ultraviolet-ray water processing apparatus. (A) is a top sectional view, (b) is a side view. It is a flowchart which shows the monitoring procedure of the ultraviolet illumination intensity of this embodiment. It is explanatory drawing which shows an example of the fluctuation | variation of the ultraviolet illumination intensity of this embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Irrigation well 2 Filtration machine 3 Drainage tank 4 Turbidity meter 5 Ultraviolet transmittance monitor 7 Ultraviolet water treatment device 9 Flowmeter 11 Chlorine injection tank 13 Water purification tank 15 Illuminance meter 17 Control panel 19 Communication terminal 20 Management server 21 Internet 22 Monitor 23 Treatment tank 25 UV lamp 27 Lamp protection tube 29 Illuminance meter 31 Illuminance meter protection tube 37 Cleaning unit 38 Drive device 41 Treated water inlet 43 Treated water outlet

Claims (8)

An ultraviolet water treatment apparatus for treating clean water, a control panel for recording the illuminance measured by an ultraviolet illuminometer provided in the ultraviolet water treatment apparatus in a memory, and a remote connected to the control panel via a communication network A monitoring device,
The control panel transmits the illuminance recorded in the memory to the remote monitoring device via the communication network,
The remote monitoring device compares the received illuminance with a preset set value, and outputs an alarm having a content corresponding to the set value when the illuminance falls below the set value. . In the ultraviolet water treatment system according to claim 1,
The remote monitoring device periodically obtains the illuminance change rate of the received illuminance, compares the illuminance change rate with one or more preset change rates, and the illuminance change rate becomes the set change rate. An ultraviolet water treatment system characterized by outputting an alarm having contents corresponding to the set change rate when the above is reached. The ultraviolet water treatment system according to claim 1 or 2,
The ultraviolet water treatment apparatus includes a cylindrical container, an illuminometer protective tube that extends in the axial direction in the container and into which the illuminance meter is inserted, and is parallel to the illuminometer protective tube as an axis. A plurality of lamp protection tubes arranged in a circle and each containing an ultraviolet lamp;
The remote monitoring device measures the accumulated time of the ultraviolet lamp lighting time, and outputs an alarm when the accumulated time reaches 90% of the lifetime of the ultraviolet lamp. . In the ultraviolet water treatment system according to claim 3,
The ultraviolet lamp includes a spare ultraviolet lamp, and the remote monitoring device transmits the spare ultraviolet lamp to the control panel via the communication network when the illuminance falls below a predetermined set value. UV water treatment system characterized by outputting a command to turn on In the ultraviolet water treatment system according to claim 3 or 4,
In addition to the illuminance, the control panel includes the turbidity on the inflow side of the clean water, the water temperature in the container, water leakage into the protective tube, the treatment flow rate of the ultraviolet water treatment device, the leakage of the ultraviolet lamp, the illuminance At least one detection result among sensors for detecting an abnormality in a cleaning device for the meter protection tube and the lamp protection tube and an abnormality in an air pump for supplying air into the protection tube is captured and recorded, and the recorded data is recorded in the communication network. A UV water treatment system, wherein the UV water treatment system is transmitted to the remote monitoring device. The ultraviolet water treatment system according to any one of claims 1 to 5,
The control panel compares the illuminance with a preset set value, and outputs an alarm having a content corresponding to the set value when the illuminance falls below the set value. Processing system. A cylindrical container through which clean water flows, an illuminometer protection tube that extends in the axial direction in the container and that includes the illuminance meter that measures ultraviolet illuminance, and the illuminometer protection tube A plurality of lamp protective tubes arranged in a circle in parallel as a core and containing the ultraviolet lamp, a control panel for recording the illuminance measured by the illuminometer in a memory, and data output from the control panel are communicated A communication device that periodically transmits to a remote monitoring device via a network,
The control panel compares the illuminance with a preset setting value, and outputs an alarm having a content corresponding to the set value when the illuminance falls below the set value.   The illuminance measured by the ultraviolet illuminance meter provided in the ultraviolet water treatment apparatus for treating the clean water is taken in via a communication network, and the illuminance is compared with a preset setting value, and the illuminance is set as the setting value. A remote monitoring device for an ultraviolet water treatment system that outputs an alarm having a content corresponding to the set value when the value falls below the value.