JP2004192492A - Monitoring system for water supply / drainage equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitoring system for preventing in advance a water damage due to malfunction of equipment by detecting an abnormal operation in the stage before a malfunction of a water supply / drainage equipment occurs. <P>SOLUTION: Standard information created in advance by forecasting normal operations of drainage pumps 22a and 22b to be provided to a manhole as equipment of a sewage system is registered in an information processing unit of a central monitoring apparatus. The monitoring system has a configuration that the information unit is provided with a judgement means for comparing actual operation information of the drainage pumps 22a and 22b transmitted from a controller 26 of the monitor room 21b with the standard information, judges to be normal when a difference of the information is in a predetermined range, and judges to be abnormal and notifies when the difference is out of the predetermined range. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a monitoring system for water supply equipment, sewerage equipment, and the like.
[0002]
[Prior art]
FIG. 4 is a schematic diagram illustrating an example of a sewerage facility (drainage facility).
As shown in this figure, the sewage system is configured such that sewage discharged from each house 11, 12 flows into sewage basins 11a, 12a installed in each house, and the sewage is discharged into respective sewage basins 11a, 12a. Is guided to the relay pump station 14 by the sewage pipe 13 communicated with.
[0003]
In this drawing, two houses 11 and 12 are shown. However, in actuality, there are many facilities that guide sewage to one relay pump station 14 from sewage sewage of dozens of houses.
[0004]
In addition, 11b, 11c, and 11d show wash basins, baths, and toilets of the house 11, and 12b, 12c, and 12d show wash basins, baths, and toilets of the house 12.
[0005]
The relay pumping station 14 includes a manhole 14a and a monitoring room 14b.
The manhole 14a is provided with a drainage pump and sends sewage to the sewage treatment plant 15 via the sewage pipe 13.
[0006]
That is, the manhole 14a is a pump facility for pumping up sewage discharged from each house to the sewage treatment plant 15, and is installed in the case of a settlement house located at a geographically lower position than the sewage treatment plant 15. You.
[0007]
The monitoring room 14b is provided with various devices necessary for the operation monitoring system of the drain pump provided in the manhole 14a.
[0008]
That is, the monitoring room 14b includes a control unit such as a drain pump, a backup unit for recording the operation history of the drain pump, an automatic communication unit for communicating with the central monitoring device, and a generator for operating the pump in the event of a power failure. And so on.
[0009]
The sewage sent to the sewage treatment plant 15 is purified and discharged by the sedimentation ponds 16, 17 and the sterilization pond 18, and the precipitated sludge is collected and treated by the sludge treatment facility 19.
[0010]
In the above sewer system, when a failure occurs in equipment such as the manhole 14a, the failure is detected by the control unit of the monitoring room 14b, and the failure notification is immediately transmitted from the automatic communication unit to the central monitoring device.
[0011]
When the central monitoring device receives a failure report, an automatic operation management system is used to notify equipment managers (maintenance company, user staff, other related persons, etc.) of "failure location and immediate inspection". Have been.
[0012]
[Problems to be solved by the invention]
In the above-mentioned sewage facilities, sewage overflows from sewage or manholes due to breakdown of the equipment, and thus flows into roads and house premises, causing great damage.
[0013]
In addition, when the amount of sewage becomes abnormally large, sewage having a treatment efficiency or more is sent to a sewage treatment plant, so that the sewage treatment becomes insufficient and the water quality is maintained.
[0014]
In order to deal with such a problem, the above-mentioned automatic operation management system is employed, but the management system is not yet sufficient.
[0015]
Specifically, this management system is notified after the equipment breaks down, and then the administrator must rush to the site of the failure to take action, so from the time of the failure until the manager arrives at the site During that time, sewage often overflows.
[0016]
Further, for example, when the drainage pump of the manhole is out of order, the drainage pump is repaired, the overhole is repaired, or the drainage pump is replaced with a new one. Since wastewater is released from each house during such recovery work, there is also a problem of wastewater treatment during this recovery work.
[0017]
Although there are various failures of the equipment, examples of the drainage pump of the manhole include an electric leakage accident of a pump driving motor and a burning accident due to an overcurrent.
[0018]
Therefore, a leakage breaker is provided for leakage, an overcurrent relay is provided for overcurrent, and a three-element relay is provided for three elements of overcurrent, reverse phase, and open phase.
In addition, there is a type in which a water level gauge or the like is provided to detect an abnormal water level.
[0019]
Although there are various causes of the failure, there are many cases where a substance is clogged on the suction side of the pump to cause a failure, and the pump motor may be burned out due to long-time operation with an overload.
As described above, the pump body often becomes a direct cause of failure.
[0020]
In view of the above-described circumstances, the present invention detects an abnormal operation at a stage prior to a failure of equipment and prevents the failure before it occurs, thereby minimizing flood damage due to water supply / drainage equipment due to failure of equipment and the like. It is intended to provide a monitoring system.
[0021]
[Means for Solving the Problems]
In order to achieve the above object, according to a first aspect of the present invention, in a monitoring system for monitoring an operation state of equipment provided in a water supply / drainage facility and notifying an abnormal operation of the equipment, Standard information prepared by predicting normal operation in advance is provided, and actual operation information of the equipment is compared with the standard information to determine whether the operation is normal or abnormal. We propose a monitoring system for water supply and drainage equipment, which is configured to notify below.
[0022]
The monitoring system configured as described above determines that the operation is normal when the actual operation information of the equipment is compared with the standard information and the difference between the information is within a predetermined range.
[0023]
Further, when the difference between these pieces of information is out of the predetermined range, it is determined that the operation is abnormal, and the fact that the state is abnormal is notified, so that the abnormal operation can be recovered in accordance with the notification.
[0024]
For example, if something gets stuck on the suction side of the drainage pump, this pump will operate abnormally.However, the abnormal operation will be notified, and by removing the material on the suction side, the drainage pump will recover to normal operation. Can be done.
As a result, the drainage pump can be restored to the normal operation without stopping the drainage pump, and in a short working time that does not affect the drainage even if the stoppage is performed.
[0025]
As described above, since the equipment can be restored to the normal operation before the equipment is broken down, repair, overhaul, replacement, etc. of the equipment are not required. But it is advantageous.
[0026]
According to a second aspect, in the monitoring system according to the first aspect, each standard information created by predicting a normal operation of a plurality of equipment in advance is provided, and actual operation information of each equipment and the respective A monitoring system for a water supply / drainage facility is provided, which is provided with a determination unit for determining whether each equipment is normal or abnormal by comparing with standard information.
[0027]
The second invention is a monitoring system in which a plurality of facility devices are arranged, and can centrally monitor the operation of each facility device and detect an abnormal operation at a stage before the facility device fails.
[0028]
A third aspect of the present invention is a drainage equipment monitoring system for monitoring the operating state of a drainage pump provided in a manhole of a sewerage facility and notifying when an abnormal operation has occurred. The prepared standard information is provided, and the actual operation information of the drain pump is compared with the standard information to determine whether the operation is normal or abnormal, and the abnormal operation of the drain pump is determined based on the abnormality of the determination unit. We propose a monitoring system for drainage equipment, characterized in that it is configured to notify the drainage.
[0029]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a simplified configuration diagram showing a relay pump station 21 of a sewerage facility.
This relay pump station 21 is composed of a manhole 21a and a monitoring room 21b, similarly to the relay pump station 14 shown in FIG.
[0030]
The manhole 21a is provided with a first drain pump 22a and a second drain pump 22b. Normally, the first and second drain pumps 22a and 22b are operated automatically and alternately to alternately operate and stop. The operation is repeated, and the sewage flowing into the manhole from the sewage inflow pipe (sewage pipe) 23a is drained from the sewage outflow pipe (sewage pipe) 23b.
[0031]
The drain pumps 22a and 22b are controlled to start operation at the water level 24a and stop at the water level 24b. When the amount of sewage is large, the first and second drain pumps 22a and 22b are simultaneously operated.
[0032]
In addition, the manhole 21a is provided with backflow prevention valves 25a and 25b for preventing sewage from flowing backward during operation of one of the drainage pumps, a sewage water level detection sensor, and the like.
[0033]
Further, the monitoring room 21b is provided with a controller 26 including a control unit 26a, a backup unit unit 26b, an automatic communication unit 26c and the like, a generator 27 and the like as in the conventional example.
[0034]
The operating state of the drain pumps 22a and 22b is monitored by the controller 26, and the monitoring information is transmitted to the central monitoring device.
As the monitoring information, operation information A1 of the drainage pumps 22a and 22b as shown in FIG. 2A is transmitted in addition to the leakage information and the burnout information of the pump motor.
[0035]
FIG. 2A shows operation information A1 indicating that the drain pumps 22a and 22b are operating normally. The central monitoring device constantly monitors the operation information A1 and determines whether the operation of the drain pumps 22a and 22b is normal. Judge as abnormal.
[0036]
That is, standard information A0 shown in FIG. 2B is registered in the central monitoring device, and the operation information A1 is compared with the standard information A0 to determine whether the operation is normal or abnormal. is there.
That is, the central monitoring apparatus includes an information processing unit including a CPU, a memory, a comparison circuit, a counter, and the like, an abnormality notification device, and the like. The information processing unit compares and determines the information A1 and A0.
[0037]
2 (a) and 2 (b), t1 indicates an operation time, t2 indicates an operation stop time, and T indicates a comparison time of the number of operations.
[0038]
The standard information A0 is operation information of the drainage pumps 22a and 22b created in advance, and includes information and materials such as pump performance, manhole installation location, operation time, four seasons, and past history data. It is created by statistically predicting the normal operation of the drain pumps 22a and 22b based on the statistics.
[0039]
Therefore, when there is no difference compared with the standard information A0 as in the operation information A1, or when the difference is within a predetermined range that does not affect the drainage even if there is a difference, it is determined that the normal operation is performed. do not do.
[0040]
On the other hand, when the operation information A2 in which the number of times of operation of the drainage pumps 22a and 22b is small as shown in FIG. 3A is determined as an information difference outside the predetermined range, the abnormality is determined, and the abnormality is notified by the notification device. .
[0041]
This abnormality notification notifies the administrator of "the occurrence of abnormality and the manhole installation location".
The manager immediately rushes to the site after receiving this report and checks for abnormalities.When the number of operations is small, abnormalities are often caused by clogging of the suction side of the drainage pump and overloading the pump Therefore, it is often possible to easily recover the drainpump without stopping it.
[0042]
Further, as shown in FIG. 3B, even when the number of times of operation of the drainage pumps 22a and 22b increases, the difference between the operation information A3 and the standard information A0 is out of the predetermined range. Notify.
[0043]
When the number of operations is increased in this manner, since the manhole 21a is often increased by rainwater or the like, it is often possible to recover the water without stopping the drain pumps 22a and 22b.
[0044]
On the other hand, the above-mentioned operation information (A1, A2, A3) and the standard information A0 are counted and compared by a counter. This comparison is determined by an electric circuit configuration, and the abnormality notification can be automated. A configuration may be adopted in which the count is displayed and the comparison is determined visually.
[0045]
Further, the standard information A0 is created in advance as standard information in which the number of normal operations of the drainage pump at predetermined time intervals is defined as an upper limit number and a lower limit number, and the operation information (A1, A2, A3) is generated at predetermined time intervals. The actual number of times of operation of the pump is configured to be generated as analog information, and the occurrence of an abnormality can be notified based on a determination that the operation information exceeds the upper limit or lower limit of the standard information.
[0046]
Although the preferred embodiment of the present invention has been described above, the present invention is similarly applied to a small-scale pump facility such as a manhole installed on a road and a monitoring box corresponding to a monitoring room installed on a telephone pole or the like. can do.
[0047]
In addition, the present invention is not limited to sewerage equipment, and can be similarly applied to equipment such as a water supply water supply pump and a drainage pump, and a water supply pump for watering a golf course.
[0048]
【The invention's effect】
As described above, according to the present invention, it is possible to detect that an equipment device has become abnormal operation, so that the abnormal operation can be recovered before the equipment device fails.
As a result, a water supply / drainage facility monitoring system capable of minimizing the damage caused by the failure of the equipment is provided.
[0049]
Further, the abnormal operation can be recovered by a simple operation, and the failure of the equipment can be prevented beforehand, so that there is almost no need to replace the equipment.
In this respect, the cost required for equipment management is saved.
[Brief description of the drawings]
FIG. 1 is a simplified configuration diagram showing a relay pump station of a sewer system shown as one embodiment of the present invention.
FIG. 2A is a diagram illustrating normal operation information of a drain pump, and FIG. 2B is a diagram illustrating standard information predicting normal operation of the drain pump.
FIGS. 3A and 3B are diagrams showing abnormal operation information of a drainage pump.
FIG. 4 is a schematic configuration diagram of a sewer system shown as a conventional example.
[Explanation of symbols]
11, 12 House 11a, 12a Sewage 13 Sewage pipe 15 Sewage treatment plant 21 Relay pumping station 21a Manhole 21b Monitoring room 22a First drain pump 22b Second drain pump 26 Controller

Claims (3)

In a monitoring system that monitors the operation status of equipment provided in water supply and drainage equipment and notifies when abnormal operation has occurred,
Provide standard information created by predicting the normal operation of equipment in advance,
Comprising judgment means for judging normal and abnormal by comparing actual operation information of the equipment with the standard information,
A monitoring system for a water supply / drainage facility, wherein a notification is made under the judgment of an abnormality of the judgment means. The monitoring system according to claim 1,
Provide each standard information created by predicting the normal operation of multiple equipment in advance,
A monitoring system for a water supply / drainage facility, comprising: a judging means for comparing actual operation information of each equipment with each of the standard information to judge whether each equipment is normal or abnormal. In a monitoring system of a drainage facility for monitoring an operation state of a drainage pump provided in a manhole of a sewerage facility and notifying an abnormal operation,
Standard information created by predicting the normal operation of the drainage pump in advance,
Comprising judgment means for judging normal and abnormal by comparing actual operation information of the drain pump with the standard information,
A monitoring system for a drainage facility, wherein an abnormal operation of the drainage pump is notified based on the determination by the determination means.

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