JP2014055428A - Flood control facility and application method of flood control facility - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve reliability of a drainage pump station in the case of disaster.SOLUTION: A flood control facility for draining internal water in a drainage pump station comprises: a drain pump for draining internal water; a control device for controlling operation of the flood control facility; and a first communication device for acquiring disaster information. The control device is configured to control the drain pump under a continuous operation mode in which operation is continued even after disaster information is acquired. The control device is also configured to measure and record instrumentation data of equipment, within the flood control facility, including at least the drain pump. The control device records instrumentation data only for a predetermined period after the first communication device acquires disaster information in the case where the drain pump is being operated under the continuous operation mode.

Description

  The present invention relates to control technology for flood control facilities for draining internal water in a drainage station.

  In a conventional drainage station for flood control, the operation manager located in the drainage station operates the pumps to stop and operate, and in the event of a disaster such as an earthquake, the operation manager will make judgments as necessary. Then, an operation for safely stopping equipment such as a pump is performed. In addition, in an unmanned drainage station that performs automatic operation, consideration may be given such as installing a seismometer and performing emergency safety stop control during an earthquake.

  On the other hand, depending on the drainage station, even in the event of an earthquake, priority may be given to flood control drainage from the viewpoint of preventing inundation damage to the inland due to heavy rain, etc., and drainage operation of equipment such as pumps may be continued.

JP 2007-23773 A JP-A-9-287590

  However, even in the event of an earthquake, at a drainage station that continues to operate drainage of equipment such as pumps, large vibrations associated with earthquakes during pump operation can cause major damage to equipment such as pumps, reducers, and engines. May bring about. For this reason, if drainage operation is continued easily after an earthquake, there is a risk that the reliability as a drainage facility will be greatly impaired, such as increasing damage due to failure and making recovery difficult.

  In addition, the following problems may occur in a drainage station that operates to stop equipment such as pumps in the event of a disaster such as an earthquake. First, in a state where an earthquake has occurred and the feet have already been shaken, the operation manager may not be able to reach the operation panel for performing the stop operation, which may cause a situation in which the stop operation cannot be performed. In addition, in a large earthquake, there may be a situation where the evacuation action must be given priority in order to ensure the safety of the operation manager. Also, even in an engine-driven drainage station, fuel oil / lubricating oil may be ignited by strong shaking, and a secondary disaster such as a fire may occur, so a situation in which retreat action must be given priority may occur. However, since the evacuation action for ensuring safety and the action for safety stop of the equipment are contradictory, it is very difficult to judge the action in the field.

  In the case of an emergency stop at an unmanned drainage station, the administrator must go to the unmanned drainage station for on-site confirmation and restoration work. A person may not be able to grasp the status of operation or stoppage of each unmanned drainage station. In such a case, there may be a situation in which the response to the unmanned drainage station that should be restored with priority is postponed.

  In addition, these drainage stations are drained from the locks provided in the bank to the main river, etc., and when the locks are open, when the water level outside the bank rises due to tsunami, There is a risk that water will flow back into the embankment through Xiamen and inundate. For this reason, it is desirable to close Xiamen promptly depending on the situation.

  Furthermore, when a pump that starts sucking up is employed as a drainage pump, before the drainage operation is actually performed, the drainage pump is evacuated to fill the drainage pump with a full water. Such full water work usually takes about 5 to 10 minutes. According to the abnormal weather in recent years, if the water level has been full after the water level in the levee has started to rise rapidly due to heavy rain or the like, it may not be possible to follow the sudden rise in water level.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as, for example, the following forms.

  A first aspect of the present invention is provided as a flood control facility for draining internal water in a drainage station. The flood control facility includes a drain pump for discharging internal water, a control device that controls the operation of the flood control facility, and a first communication device that acquires a disaster alarm. The control device is configured to be able to control the drainage pump in a continuous operation mode that continues operation even after receiving a disaster alarm, and can measure and record instrumentation data of equipment in the flood control facility, including at least the drainage pump When the drainage pump is operated in the continuous operation mode, instrumentation data is recorded only for a predetermined period after the first communication device acquires a disaster warning.

  According to such a flood control facility, the operation manager or the administrator can accurately grasp the operational state of the flood control facility at the time of the disaster based on the instrumentation data of the flood control facility at the time of the disaster. Therefore, appropriate measures can be taken as necessary. For this reason, there are problems such as continuing the operation of flood control facilities in a state where the state of the equipment after the disaster is not fully understood, or restarting the operation easily after being stopped due to a failure or damage accompanying the disaster. You can prevent it. For this reason, the occurrence of a serious failure and the occurrence of a secondary disaster such as a fire can be suppressed. As a result, the reliability and safety of flood control facilities can be improved.

  As a second aspect of the present invention, the flood control facility according to the first aspect may include a second communication device that transmits the recorded instrumentation data to a predetermined external destination. According to such a form, even in a busy situation at the time of emergency response, it is possible to prevent the manager of the flood control facility from forgetting to confirm the state of the flood control facility after the disaster. In addition, when there are multiple flood control facilities managed by a single manager (one management office), it is possible to preferentially take recovery measures from the flood control facilities with the greatest damage among the multiple flood control facilities become. As a result, reliable and appropriate recovery measures can be taken.

  As a third aspect of the present invention, the flood control facility according to the first or second embodiment is a waterproof door that suppresses the ingress of water into the building of the flood control facility, and includes a waterproof door that can be opened and closed. Good. The control device may perform control to close the waterproof door when the first communication device acquires a warning about tsunami or flood as one of the disaster warnings. According to this form, since the infiltration of water into the building of the flood control facility can be suppressed, the facility can be made more reliable.

  As a 4th form of this invention, in the flood control equipment of the form in any one of the 1st thru | or 3rd, a drain pump may be a pump which performs a suction start. In addition, the flood control facility includes a vacuum pump for sucking the inside of the drain pump and sucking up the internal water into the drain pump, and a detector for detecting a full water state in which the drain pump is filled with water. It may be. The control device operates the vacuum pump until the detector detects a full water condition when the first communication device receives an alarm about heavy rain or flood as one of the disaster alarms, and the drain pump before starting You may perform control which waits in a full water state. According to this form, even if the water level of the internal water suddenly rises due to heavy rain, flooding, etc., the drainage pump can be started quickly at the necessary timing. As a result, the occurrence of inundation is suppressed, and highly reliable control can be realized.

As a fifth aspect of the present invention, in the flood control facility according to any one of the first to fourth aspects, the control device acquires an alarm relating to earthquake prediction or tsunami as one of the disaster alarms by the first communication device. In this case, the drainage pump in operation is stopped, the drainage lock that drains the internal water discharged from the drainage pump, and the natural flowdown lock that drains the internal water by natural flow without going through the drainage pump, Closure control may be performed to close the open locks. The control device may be configured to be able to selectively switch between control in the continuous operation mode and closing control. According to this form, according to the judgment of the manager, it is also possible to perform control with an emphasis on safety according to the operation rules for flood control facilities in the event of a disaster.

  As a sixth aspect of the present invention, in the flood control facility of the fifth aspect, the control device may perform closing control when the first communication device acquires an alarm relating to earthquake prediction. According to this form, it becomes possible to control the flood control facility in a safe state before the occurrence of an earthquake or tsunami. In other words, it is possible to reduce the possibility that an earthquake will occur and a power failure, equipment failure, damage, etc. will occur and the drainage pump will be completely stopped or the locks will not be fully closed. As a result, highly reliable crisis management control can be achieved.

  As a seventh mode of the present invention, the flood control facility of the sixth mode transmits the content of the alarm regarding earthquake prediction or tsunami acquired by the alarm acquisition device and control information of the flood control facility to a predetermined external destination. A third communication device may be provided. According to this form, the administrator can quickly check the operation status, state change, and equipment damage level of the equipment after the disaster occurs, so it is possible to quickly return the drainage function, and more reliable. The equipment can be high.

  As an eighth aspect of the present invention, the flood control facility according to any of the fifth to seventh aspects may include a drainage lock and a natural flow lock. In such a flood control facility, at least one of the drainage lock gate and the natural flow lock gate may be configured by a self-weight descending gate that descends by its own weight when closed. With this configuration, when an alarm about earthquake prediction is received, the closing operation is not completed between the reception and the arrival of the main swing (main motion), and a power failure occurs due to the impact of the earthquake, etc. Even if it occurs, the Xiamen can be fully closed regardless of the power supply. Therefore, the equipment can be made more reliable.

  As a ninth aspect of the present invention, in the flood control facility of any of the fifth to eighth aspects, at least one of the drainage lock and the natural flow lock gate may be composed of a plurality of gates. The control device may sequentially close the plurality of gates with a time difference. According to this form, since the flow of internal water is not suddenly stopped, the occurrence of a water hammer phenomenon such as a step wave accompanying the sudden stop can be suppressed, and safety is improved.

  As a tenth aspect of the present invention, in the flood control facility of the sixth aspect or any of the seventh to ninth forms including the sixth aspect, the closure control was performed, but an earthquake arrived thereafter. When the measurement using the seismic intensity meter is below a predetermined value, control may be performed to return the state of the drainage pump, drainage lock gate and natural flow lock gate to the state before the closing control was performed. . According to such a form, when a large earthquake does not occur, it is possible to automatically return to operation, and it becomes a more reliable facility as a countermeasure against inundation due to inundation.

  An eleventh aspect of the present invention is provided as a method of operating a flood control facility for draining internal water at a drainage station. In this method, when the drainage pump for draining the internal water is in operation when the flood control facility acquires the disaster warning, the drain pump continues to operate and the specified period after the disaster warning is acquired. Only measure and record instrumentation data for equipment in flood control facilities, including at least drain pumps. According to this operation method, the same effect as that of the first embodiment is obtained.

The functions of the control device described above may be realized by a dedicated hardware circuit that realizes a specific function, or may be realized by software executed by the information processing device. The control device may be a single integrated device that integrates a plurality of functions, or may be a plurality of devices that are configured separately according to the function. Similarly, the first to third communication devices may be integrated or separate.

  The various forms described above can be combined or omitted as appropriate. For example, each of the third, fourth, and fifth modes described above can be realized independently of the first mode, that is, as a flood control facility that does not include the first mode.

It is explanatory drawing which shows schematic structure of the flood control equipment. It is explanatory drawing which shows schematic structure of the pump equipment. It is a flowchart which shows the flow of a driving | operation information recording process. It is a flowchart which shows the flow of a gate closing process. It is a flowchart which shows the flow of a full water standby process.

A. Example:
A-1. Schematic configuration of flood control equipment 100:
FIG. 1 shows a schematic configuration of a flood control facility 100 as an embodiment of the present invention. The flood control facility 100 is a facility of a drainage station that forcibly discharges the internal water in the levee land to the outer land according to the situation. The flood control facility 100 may be operated and managed unattended, or an operation manager may be arranged. As shown in the drawing, in the present embodiment, the flood control facility 100 is provided at a place where the branch river 20 joins the main river 50. The tributary 20 branches off on the way. The branch river 20 after the branch is also referred to as a branch river 30 and a branch river 40 for convenience.

  The flood control facility 100 includes a suction water tank 120, a discharge water tank 130, a drainage lock gate (gate) 140, a natural flow lock gate (gate) 150, four pump facilities 200a to 200d (hereinafter also simply referred to as a pump facility 200), a control A device 160, a communication device 170, and a waterproof door 180 are provided.

  The suction water tank 120 is installed in the basement of the site 70 where the pump facility 200, the control device 160, and the communication device 170 are installed. The site 70 can be entered via the road 60. The pump facility 200, the control device 160, and the communication device 170 are housed in a building, and a waterproof door 180 is provided at the entrance of the building.

  Water (inner water) flows from the tributary 30 into the suction tank 120. The water stored in the suction water tank 120 is pumped up by the pump facility 200 and discharged to the discharge water tank 130. In this embodiment, the pump facility 200 is composed of four lines, but the number of lines can be set to an arbitrary number.

  The drainage gate 140 is provided on a dike constructed between the discharge water tank 130 and the main river 50. In the state where the drain gate 140 is opened, the water in the discharge water tank 130 is discharged to the main river 50. The natural flow gate 150 is provided at the boundary between the branch river 40 and the main river 50. When the natural flow gate 150 is opened, the water of the tributary 40 flows into the main river 50 by natural flow. In the present embodiment, both the drain gate 140 and the natural flow gate 150 are composed of a plurality of gates. In the present embodiment, the drain gate 140 and the natural flow gate 150 are opened and closed using an electric motor as a power source. The drain gate 140 and the natural flow gate 150 may be installed between the river and the ocean.

  In addition to controlling the overall operation of the flood control facility 100, the control device 160 measures instrumentation data of equipment in the flood control facility 100 and records it in a storage medium. A communication device 170 is connected to the control device 160. In the present embodiment, the communication device 170 performs wireless communication and receives a disaster alarm from a predetermined server. Examples of disaster warnings include earthquake prediction warnings, tsunami warnings, heavy rain warnings, flood warnings, and the like. The earthquake prediction may be a prediction before the occurrence of an earthquake based on a precursor phenomenon of the earthquake or the like, or a preliminary report before the arrival of the main swing after the occurrence of the earthquake. These disaster warnings can be received using, for example, a national instantaneous warning system (J-ALERT) provided by the Fire Department of the Ministry of Internal Affairs and Communications or various warning systems provided by private companies. However, the communication device 170 may access a predetermined server and acquire a disaster warning.

  In addition, the communication device 170 performs wireless communication with the management office 80. The management office 80 is a facility that manages a plurality of drainage stations, and an administrator is arranged there. The drainage station shown in FIG. 1 is one of the drainage station managed by the management office 80. When the communication device 170 uses wireless communication, it is not necessary to lay an optical cable or a metal cable from the remote management office 80, and a communication facility can be constructed at an early stage and at a low cost regardless of the location conditions. be able to. Note that the control device 160 and the communication device 170 may be integrally configured.

  In such a flood control facility 100, the following operation is performed during normal times, that is, when a disaster warning described later is received. First, when the water level of the main river 50 is lower than a predetermined value, the pump facility 200 is stopped and the drain gate 140 is closed. In addition, the natural flow gate 150 is opened. Thereby, the water of the tributary 20 (the tributary 40) flows into the main river 50 by natural flow through the natural flow gate 150.

  On the other hand, when the water level of the main river 50 is equal to or higher than a predetermined value, that is, when there is a possibility that outside water may flow back from the main river 50 to the branch river 20, the natural flow gate 150 is closed. Then, the pump facility 200 is operated and the drain gate 140 is opened. As a result, the water of the tributary 20 (branch 30) is forcibly drained into the main river 50, so that it is possible to suppress the occurrence of inundation damage due to the retention of the internal water in the inland area.

A-2. Schematic configuration of the pump facility 200:
FIG. 2 shows a schematic configuration of the pump facility 200. The pump facility 200 includes a drain pump 210, a drive 221, and a speed reducer 222. The drainage pump 210 is connected to a drive machine 221 as a drive source via a speed reducer 222. The drive machine 221 can be a diesel engine, a gas turbine, an electric motor, or the like.

  A suction pipe 231 extending to the lower side of the suction water tank 120 is connected to the suction port of the drain pump 210, and a discharge pipe 232 is connected to the discharge port. The discharge pipe 232 extends to the discharge water tank 130 via the discharge valve 233. In this embodiment, the drainage pump 210 is a pump that starts up suction, that is, a pump in which the impeller included in the drainage pump 210 is installed at a position higher than the suction water level (the water level of the suction water tank 120). In this embodiment, the drainage pump 210 is a horizontal axis pump.

  A suction pipe 241 is connected to the drain pump 210 substantially at the top of the casing. A vacuum pump 244 is connected to the tip of the suction pipe 241. An electric motor 245 is connected to the vacuum pump 244 as a drive source. A detector 242 is provided in the middle of the suction pipe 241. A siphon break valve 243 is connected between the drainage pump 210 and the detector 242 in the suction pipe 241.

In such a configuration, when the vacuum pump 244 is operated with the discharge valve 233 closed, the inside of the drain pump 210 is exhausted, and water is sucked into the drain pump 210 from the suction water tank 120 via the suction pipe 231. Then, when the drain pump 210 is filled with water and the water is sucked up to the detector 242, the vacuum pump 244 is stopped. The detector 242 is, for example, a water level gauge, and detects a full water state of the drain pump 210. The drainage pump 210 is started after being filled with water in this way.

  The siphon break valve 243 is normally closed and is opened when it is desired to drop the water level in the casing of the drainage pump 210. That is, when the siphon break valve 243 is opened, the negative pressure in the drainage pump 210 is destroyed, the water level in the drainage pump 210 is lowered, and the water level before the vacuum pump 244 is operated is returned.

A-3. Control of flood control equipment 100:
The flood control facility 100 described above can perform various controls by receiving a disaster warning via the communication device 170. Below, some forms will be described.

A-3-1. Driving information recording process:
FIG. 3 shows the flow of the operation information recording process. The operation information recording process is a process of recording instrumentation data of the flood control facility 100 including at least the pump facility 200 when a disaster (here, earthquake or tsunami) occurs. The operation information recording process is executed by the control device 160. The operation information recording process can be employed when the normal operation of the flood control facility 100 described above is continued even in the event of a disaster from the viewpoint of preventing inundation damage to the inland due to inundation.

  As shown in FIG. 3, in the driving information recording process, the control device 160 first waits for reception of a disaster warning (step S310). The disaster warning here is an earthquake prediction warning or a tsunami warning.

  And the control apparatus 160 will start the recording of the instrumentation data of the component apparatus of the flood control equipment 100, if a disaster warning is received (step S310: YES) (step S320). The instrumentation data is, for example, temperature, water level, oil level, pressure, and the like regarding the components of the flood control facility 100 including at least the pump facility 200. The start timing of recording instrumentation data may be immediately after receiving a disaster warning or after a predetermined time has elapsed. For example, if the disaster warning is an earthquake prediction warning, the recording of instrumentation data starts immediately after receiving the disaster warning, and if the disaster warning is a tsunami warning, the instrumentation data is Recording may be started. The predetermined time may be a predetermined time or a time determined based on a tsunami arrival time included in the tsunami warning. The predetermined time may be determined by the control device 160 according to the contents included in the disaster warning.

  When the recording of instrumentation data is started, the control device 160 continues the recording until a predetermined time elapses (step S330), and stops the recording after the predetermined time elapses (step S340). The predetermined time may be set as, for example, a time that is assumed to be required for an earthquake or tsunami to completely calm down. For example, in the case of an earthquake, the predetermined time may be 5 to 10 minutes. The predetermined time in step S330 may be determined by the control device 160 according to the contents included in the disaster warning.

  When the recording of the instrumentation data is stopped, the control device 160 transmits the recorded data to the management office 80 via the communication device 170 (step S350). Thus, the driving information recording process ends.

As described above, by converting the state of the flood control facility 100 at the time of the disaster, the operation manager or the administrator can accurately grasp what operation state the flood control facility 100 was in when the disaster occurred. If data that cannot be measured in normal operation is measured, the cause can be investigated and processed appropriately. For example, when the misalignment of the pump facility 200 occurs due to an earthquake, an increasing tendency of the bearing temperature is observed. If operation managers etc. go to the site and correct the misalignment quickly based on the judgment based on the recorded data, the load on the bearing will gradually increase and burnout will eventually occur. Can be avoided. In particular, in flood control facilities such as drainage stations, it is common not to have a spare pump, and even if one pump fails or is damaged, this often leads to a decline or stoppage of the drainage function. This control is extremely effective. Or when using a fuel for the drive machine 221, generation | occurrence | production of an oil leak etc. can be confirmed based on the rapid fall of the oil level of a fuel small tank (not shown). For this reason, the operation of the pump equipment 200 and the drive machine 221 is continued in a state where the device state is not sufficiently grasped, or the operation is easily resumed after being stopped due to a failure or damage accompanying a disaster, The occurrence of a serious failure and the occurrence of a secondary disaster such as a fire can be suppressed. Thus, the operation information recording process can remarkably improve the reliability and safety of the flood control facility 100.

  The instrumentation data may be recorded only during the operation of the pump facility 200. That is, when failure or damage occurs in the pump facility 200 due to an earthquake or the like and the pump facility 200 is stopped, the recording of instrumentation data may be stopped. Conversely, even after the operation of the pump facility 200 is stopped, the recording of instrumentation data may be continued. In this way, oil leakage from the oil tank can be confirmed.

  Moreover, since the control device 160 records instrumentation data only when a disaster occurs, the processing load can be reduced. Alternatively, the required capacity of the storage medium can be reduced, which is economical.

  In addition, by transmitting instrumentation data at the time of a disaster to the management office 80, it is possible to prevent an administrator from forgetting to check the state of the flood control facility 100 after a disaster, even in a busy situation during an emergency response. It becomes possible to preferentially take countermeasures from the drainage station with the greatest damage among the plurality of drainage stations under the jurisdiction of the management office 80. As a result, reliable and appropriate recovery measures can be taken.

  To the data transmitted to the management office 80, a video image at an arbitrary time (for example, about 2 to 5 minutes) after receiving the disaster warning or photographic image data taken at an arbitrary time interval may be added. In this way, the manager can more accurately determine the damage status of the flood control facility 100, and can promptly restore it. Alternatively, a seismometer may be installed in the drainage station, and the seismic intensity measured in the field may be added to the data transmitted to the management office 80. In this way, it becomes a suitable judgment material for the manager when considering recovery.

  Alternatively, the control device 160 may determine whether the instrumentation data is abnormal, for example, determine whether there is a sudden change or a threshold value is exceeded, and transmit the result to the management office 80 including the result of the determination. In this way, the administrator can judge the damage situation more accurately. Further, the control device 160 records normal data such as test operation and normal operation (non-disaster) and compares the recorded data with disaster data to determine abnormality. Also good.

A-3-2. Gate closing process:
FIG. 4 shows the flow of the gate closing process. The gate closing process is a process for closing the drain gate 140 and the natural flow gate 150 when a disaster (here, an earthquake or a tsunami) occurs. The gate closing process is executed by the control device 160. The gate closing process can be adopted when emphasizing the prevention of inundation damage in the levee due to the flooding of the outside water accompanying the rise in the water level of the main river 50.

  As shown in FIG. 4, in the gate closing process, the control device 160 first waits for reception of a disaster warning (step S410). The disaster warning here is an earthquake prediction warning or a tsunami warning. And the control apparatus 160 will judge whether the pump installation 200 is drive | operating, if a disaster warning is received (step S410: YES) (step S420).

  As a result of the determination, if the pump facility 200 is operating (step S420: YES), the control device 160 stops the operating pump facility 200 (step S430) and closes the drain gate 140 (step S440). . At this time, the natural flow gate 150 is already closed. In this embodiment, the drain gate 140 is composed of a plurality of gates, and the plurality of gates are sequentially closed with a time difference. Thus, by closing the drain gate 140 in stages, the occurrence of water hammer phenomena such as step waves accompanying the sudden stop of the flow of river water can be suppressed, and safety is improved.

  When a situation where a ship or the like passes through the natural flow gate 150 when the natural flow gate 150 is opened, an alarm device is provided in the natural flow gate 150 so that an alarm is issued before the natural flow gate 150 is closed. It may be configured. Further, a sensor (passage sensor) for detecting an object on the water surface of the river is provided in the natural flow gate 150, and the control for starting the closing of the natural flow gate 150 is provided on the condition that the passage is not detected by the sensor. It may be logic.

  On the other hand, if the pump facility 200 is not in operation (step S420: NO), the control device 160 closes the natural flow gate 150 (step S450). At this time, the drain gate 140 is already closed. In this embodiment, the natural flow gate 150 is closed in a stepwise manner, similar to the drain gate 140.

  As described above, when both the drainage gate 140 and the natural flow gate 150 are closed, the control device 160 transmits the facility control information to the management office 80 together with the contents of the disaster alarm received in Step S410 (Step S410). S460). The facility control information is information representing the content of control performed by the gate closing process. Thus, the gate closing process is completed.

  If the magnitude of the earthquake is large, there is a possibility that the equipment is damaged. Therefore, the manager who has grasped the situation of the flood control equipment 100 in the above step S460 considers the magnitude of the earthquake that actually occurred or confirms the site. It is preferable to send a return command for normal drainage operation or issue a return command at the site. If it carries out like this, it can control that damage of flood control equipment 100 develops into a big failure.

  According to such a gate closing process, the flood control facility 100 can be controlled to be in a safe state by using a disaster warning issued by a private company or a local government. For example, when the drainage station is managed unattended, the pump facility 200 can be stopped by automatic control. Or when the operation manager is arranged in the drainage station, the operation manager is not required to stop the pump facility 200 when a disaster occurs. In other words, since the avoidance action is given priority to the operation manager, the danger associated with reaching the operation panel for the stop operation does not reach the operation manager. Moreover, in any case, the flooding of the outside water in the bank can be suppressed. The gate closing process can be realized at low cost, and has high reliability and safety in the event of a disaster.

  In particular, when an earthquake prediction warning is received in step S410, the flood control facility 100 can be controlled in a safe state before the occurrence of an earthquake or tsunami. That is, it is possible to reduce the possibility that an earthquake will occur, a power failure, equipment failure, damage, etc. will occur, the pump facility 200 will be completely stopped, and the drain gate 140 and the natural flow gate 150 will not be fully closed. . Therefore, highly reliable crisis management control can be performed.

Furthermore, since the status of the pump facility 200 is transmitted to the management office 80, the administrator can quickly confirm the safety after the occurrence of a disaster (confirmation of equipment operation status, state change, equipment damage level, etc.). In addition, the drainage function can be quickly restored and the equipment can be made more reliable.

  In addition, since the drainage station may become a disaster prevention base in the area, gate closure processing may be performed, and alarms may be given to local residents with speakers and large electric display boards installed in the drainage station .

  When the disaster warning is an earthquake prediction warning, the gate closing process was performed, but when the earthquake arrived and the seismometer measurement was below the predetermined value, the flood control facility 100 was automatically returned (operated at a predetermined timing). (Resume). The predetermined timing may be, for example, when a predetermined time elapses after receiving a disaster warning, or the shaking is no longer detected by the seismometer installed in the drainage station (or predetermined after it is not detected). It may be when time has passed. In this way, when a large earthquake does not occur, it is possible to automatically return to operation, and it becomes a more reliable facility as a countermeasure against inundation due to inundation.

A-3-3. Full water standby processing:
FIG. 5 shows the flow of the full water standby process. The full water standby process is a process that causes the drain pump 210 before the start to be full when a disaster (here heavy rain or flood) occurs. The full water standby process is executed by the control device 160.

  As shown in FIG. 5, in the full water standby process, first, the reception of a disaster warning is waited (step S510). The disaster warning here is a heavy rain warning or a flood warning. And the control apparatus 160 will close the discharge valve 233 (step S520) and will operate the vacuum pump 244, if a disaster warning is received (step S510: YES) (step S530). Thereby, the water in the suction water tank 120 is sucked up to the inside of the drainage pump 210.

  Then, the control device 160 continues the operation of the vacuum pump 244 until the detector 242 detects a full water state (step S540), and when the full water state is detected (S540: YES), the vacuum pump 244 is stopped. (Step S550). Thus, the full water standby process is completed. In this state, the control device 160 waits for the start instruction for the drain pump 210 to be input.

  According to such a full water standby process, the drainage pump 210 can be started at a necessary timing by suitably following a sudden rise in the water level due to abnormal weather. That is, during operation of the vacuum pump 244 (usually 5 to 10 minutes), it is possible to suppress the water level from rising rapidly and causing flooding of the internal water. In this way, the full water standby process prevents a delay in the initial operation and can realize highly reliable control. In addition, since the initial operation can be automated using a disaster warning as a trigger, the timing for performing the full water operation is clear and effective.

A-3-4. Waterproof door closing process:
The control device 160 may execute a waterproof door closing process. The waterproof door closing process is a process of closing the waterproof door 180 when a disaster warning (here, a tsunami warning or a flood warning) is received. In this way, water intrusion into the building of the flood control facility 100 can be suppressed, so that the facility can be made more reliable.

B. Variations:
B-1. Modification 1:
When performing driving information recording processing or gate closing processing based on an earthquake prediction warning, a seismic intensity threshold value may be provided. That is, only when the earthquake prediction information having a seismic intensity equal to or greater than the threshold is received, the control device 160 performs the processing of steps S320 to S350 (see FIG. 3) or step S42.
You may perform the process (refer FIG. 4) of 0-S460. In this way, flexible control can be performed according to the magnitude of the earthquake, that is, according to the possibility of the impact on the flood control facility 100 due to the earthquake.

B-2. Modification 2:
At least one of the drain gate 140 and the natural flow gate 150 may be a self-weight descending gate that descends by its own weight when closed. With this configuration, the closing operation is not completed between the receipt of the earthquake prediction warning and the arrival of the main oscillation (usually about several seconds), and a power failure occurs due to the earthquake. However, the gate can be fully closed with or without power supply. Therefore, the equipment can be made more reliable.

  The natural flow gate 150 may be controlled by a control device installed separately from the control device 160.

  Similarly to the drainage gate 140 and the natural flow down gate 150, the pump facility 200 may cause a power failure during the stop operation. For this reason, you may stop the drive machine 221 with a battery, an uninterruptible power supply device, etc. Alternatively, in the case of the above-described horizontal axis pump that performs siphon operation, the siphon break valve 243 is driven (uncontrolled) by an uninterruptible power supply or a battery to reduce the water level in the drainage pump 210, thereby discharging the water. The backflow from the water tank 130 to the suction water tank 120 may be reliably prevented. Furthermore, when an engine is used for the drive unit 221, a fuel cutoff valve provided on the outflow side (engine side) of the fuel discharge tank may be controlled to close.

B-3. Modification 3:
The various controls of the flood control facility 100 described above can be employed alone or in any combination. For example, the following configuration may be adopted so that the operation information recording process and the gate closing process can be selectively executed. For example, the control device 160 may be either a continuous operation mode in which the operation of the pump facility 200 is continued even after the acquisition of the disaster alarm, or an emergency stop mode in which the operation of the pump facility 200 is stopped after the acquisition of the disaster alarm. You may make it function as a switching device which switches whether to operate. And the control apparatus 160 may perform a driving | operation information recording process, when the continuous operation mode is selected, and may perform a gate closing process, when the emergency stop mode is selected.

  The embodiments of the present invention have been described above based on some examples. However, the above-described embodiments of the present invention are for facilitating the understanding of the present invention and limit the present invention. It is not a thing. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof. Moreover, in the range which can solve at least one part of the subject mentioned above, or the range which exhibits at least one part of an effect, the combination of each component described in the claim and the specification, or omission is possible. .

20, 30, 40 ... branch river 50 ... main river 60 ... road 70 ... site 80 ... management office 100 ... flood control facilities 120 ... suction tank 130 ... discharge tank 140 ... drainage gate 150 ... natural flow down gate 160 ... control device 170 ... communication device 180 ... Waterproof door 200, 200a to 200d ... Pump equipment 210 ... Drain pump 221 ... Driver 222 ... Speed reducer 231 ... Suction pipe 232 ... Discharge pipe 233 ... Discharge valve 241 ... Suction pipe 242 ... Detector 243 ... Siphon break valve 244 ... Vacuum pump 245 ... Electric motor

Claims (11)

A water control facility for draining internal water at a drainage station,
A drainage pump for discharging the internal water;
A control device for controlling the operation of the flood control facility;
A first communication device for obtaining a disaster warning,
The control device includes:
The drain pump is configured to be controllable in a continuous operation mode in which the operation is continued even after the disaster warning is acquired,
Measuring instrumentation data of equipment in the flood control facility, including at least the drainage pump, and configured to be recordable,
A flood control facility that records the instrumentation data only for a predetermined period after the first communication device acquires the disaster warning when the drain pump is operated in the continuous operation mode. The flood control facility according to claim 1,
Flood control equipment comprising a second communication device for transmitting the recorded instrumentation data to a predetermined external destination. The flood control equipment according to claim 1 or claim 2,
A waterproof door that prevents water from entering the building of the flood control facility, and includes a waterproof door that can be opened and closed.
The said control apparatus performs the control which closes the said waterproof door, when the said 1st communication apparatus acquires the alarm regarding tsunami or flood as one of the said disaster alarms Flood control facilities. The flood control equipment according to any one of claims 1 to 3,
The drainage pump is a pump for starting up suction,
The flood control facilities are:
A vacuum pump for sucking the inside of the drainage pump and sucking up the internal water into the drainage pump;
A detector for detecting a full water state in which the water is filled in the drainage pump;
The control device causes the vacuum pump to operate until the detector detects the full water state when the first communication device acquires an alarm regarding heavy rain or flood as one of the disaster alarms. Water control equipment that controls the drain pump before start-up in the full state. The flood control equipment according to any one of claims 1 to 4,
The control device includes:
When the first communication device acquires an alarm about earthquake prediction or tsunami as one of the disaster alarms, the first communication device stops the drainage pump during operation and the internal water discharged from the drainage pump. Performing the closing control to close the open lock gate among the drain lock gate to drain and the natural flow lock gate to discharge the internal water by natural flow without going through the drain pump,
Flood control equipment configured to be able to selectively switch between the control in the continuous operation mode and the closure control. The flood control facility according to claim 5,
The said control apparatus is a flood control facility which performs the said closure control, when the said 1st communication apparatus acquires the said alarm regarding the said earthquake prediction. The flood control facility according to claim 6,
A flood control facility comprising a third communication device that transmits the content of the alarm relating to the earthquake prediction or tsunami acquired by the first communication device and control information of the flood control facility to a predetermined external destination. The flood control equipment according to any one of claims 5 to 7,
The drainage lock and the natural flow lock gate,
At least one of the drainage lock gate and the natural flow lock gate is a flood control facility composed of a self-weight drop type gate that drops by its own weight when closed. The flood control equipment according to any one of claims 5 to 8,
At least one of the drainage lock and the natural flow lock gate is composed of a plurality of gates,
The control device is a flood control facility that sequentially closes the plurality of gates with a time difference. The flood control equipment according to any one of claims 7 to 9, which includes claim 6 or claim 6 as a reference destination,
The control device performs the closing control, but when an earthquake occurs and the measurement using the seismometer is a predetermined value, the drain pump, the drainage lock gate and the natural flow lock gate Flood control equipment that performs control to return the state to the state before the closing control was performed. A method of operating a flood control facility for draining internal water at a drainage station,
When the drainage pump for discharging the internal water is in operation when the flood control facility acquires a disaster warning, the operation of the drainage pump is continued,
An operation method of a flood control facility that measures and records instrumentation data of equipment in the flood control facility including at least the drainage pump only for a predetermined period after obtaining the disaster warning.

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