JP2015105649A - Rainwater pump control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rainwater pump control device capable of attaining adaptation for rapid and severe flowing-in of rainwater by detecting flowing-in of rainwater in advance and performing a stand-by operation of the rainwater pump in advance, and reducing a burden of a private power generator for driving the rainwater pump by reducing frequent starting/stopping operation of the rainwater pump.SOLUTION: This invention relates to a rainwater pump control device having a constitution in which as a condition for starting the rainwater pump, a rainwater pump well water level, an amount of rainfall and a flowing-in ditch water level are applied, a flowing-in of rainwater into a rainwater discharging machine site is detected fast, the rainwater pump is operated in advance for prior waiting operation to enable adaptation for rapid and severe flowing-in of rainwater to be carried out, the waiting operation time for the rainwater pump is restricted in consideration of time required for the flowing-in rainwater, as a judgement condition for stop propriety of the rainwater pump, judgement by the amount of rainwater fall and the flowing-in ditch water level and the time required until the rainwater flows in are considered and useless repetition of operation stop of the rainwater pump is restricted.

Description

  The present invention relates to a rainwater pump control device for a rainwater drainage station for draining water from a lowland to a river or the sea during rainfall.

  Conventionally, the operation control of the rainwater pump drains rainwater so that the rainwater drainage station and the surrounding area are not flooded. Therefore, in the rainwater drainage station, set the water level at which the rainwater pump starts / stops according to the water level of the rainwater pump well so that the water level of the pond (rainwater pump well) with the rainwater drainage pump does not exceed the predetermined water level, By determining the number of operating rainwater pumps according to the set water level, control was performed to keep the water level of the rainwater pump well within a certain range.

  Then, the number of rainwater pumps to be operated is adjusted by setting the start / stop water level of each rainwater pump in stages.

  However, in recent years, due to a number of factors such as guerrilla heavy rain and the development of urban areas, the amount of rainwater flowing into the rainwater drainage station has increased, and there is a tendency for a rapid inflow of rainwater to occur in the rainwater drainage station.

  Therefore, in the conventional method of determining the number of rainwater pumps to be operated based on the water level of the rainwater pump well, there is a possibility that the response to a sudden inflow of rainwater may be delayed.

  Furthermore, since the rainwater pump requires a certain period of time from when it is activated until it can be drained, the response delay has become more prominent.

  In recent years, in order to cope with such problems, there is an increasing number of machines that employ a pre-standby operation type rainwater pump that can operate the rainwater pump in advance even if it is below the drainable water level of the rainwater pump. .

  For example, in JP 2009-47038 A (Patent Document 1), it is possible to reduce the contamination of discharged water, and there is no risk of the rainwater drainage station being flooded, and additional operation of the rainwater pump can be performed in a short time. A technology relating to control of a rainwater pump that can stably operate the rainwater pump while avoiding the occurrence of operation stop is disclosed.

  Further, Japanese Patent No. 2704207 (Patent Document 2) relates to an operation method of a plurality of pumps in a pump suction well of a drainage station or a suction well of a rainwater pump facility, etc. A well-corresponding technique is disclosed.

  JP-A-8-232331 (Patent Document 3) relates to a drainage system that guides drainage of rainwater or the like to a drainage pump station and discharges it to a river or the like. A technique is disclosed in which the rate of increase in the water level in the drainage channel is determined at the upstream point of the drainage channel, the occurrence of flash flood is detected quickly, and the drainage pump is operated accordingly.

  Japanese Patent Laid-Open No. 9-62367 (Patent Document 4) discloses a control method in a sewer stormwater drainage pump station, in particular, a prediction for predicting a stormwater inflow amount to a pipe and controlling a pump operation based on a predicted value. Regarding control method, pipe dredging level, pump well level, inflow dredging level 19 and pump operation status due to rainfall from ground surface gauge 14 etc. are collected in real time, and given as rainfall data and pipe level data as input. A technique for predicting the amount of inflow of rainwater up to a certain time (predicted leading time T) is disclosed.

  When a large amount of rainwater inflow can be predicted, the rainwater pump can be operated in advance to make it possible to drain the water at the same time as reaching the drainable water level. can do.

JP 2009-47038 A Japanese Patent No. 2704207 JP-A-8-232331 JP-A-9-62367

  For example, in the operation using the preceding standby type rainwater pump described in Japanese Patent Application Laid-Open No. 2009-47038 described above, an increase in power consumption due to a long operation time of the rainwater pump or a long-time no-load operation The rainwater pump is worn, and when the rainwater pump is stopped, a certain interval is required until the start of the next rainwater pump due to the temperature rise of the bearing. Therefore, efficient operation of the rainwater pump is difficult, and the rainwater pump is complicated. Along with the start / stop, there is a problem that the burden on the private generator installed to drive the rainwater pump increases.

  The object of the present invention is to detect the inflow of rainwater in advance and enable the rainwater pump to respond to a sudden inflow of rainwater by performing a standby operation in advance, and reduce the frequency of starting / stopping the rainwater pump, An object of the present invention is to provide a rainwater pump control device that reduces the burden on the private generator that drives the rainwater pump.

  The rainwater pump control device of the present invention is a rainwater pump control device that controls a plurality of rainwater pumps installed in a rainwater drainage pump station, and the rainwater pump control device detects rainfall based on a detection value of a rain gauge. A rainwater intrusion detection / determination unit, a rainwater inflow detection / determination unit that detects the inflow water level flowing into the rainwater drainage station based on the water level detected by the first water level meter installed at the inflow tank of the rainwater drainage station, and a rainwater drainage station A water level determination unit that determines the water level of the rain water pump well based on the water level detected by the second water level gauge installed in the rain water pump well, and each of these rain amount detection determination unit, rain water inflow detection determination unit, and water level determination unit A pump operation number calculation unit that calculates the number of pump operations based on the determination, and a pump operation / stop control that controls operation / stop of the pump based on the number of pump operations calculated by the pump operation number calculation unit The rain detection determination unit is configured with a set value of rainfall, the rainwater inflow detection determination unit is configured with a set value of inflow water level, and the water level determination unit includes a plurality of water level determination units. The set value of the rainwater pump well water level that is different for each installed rainwater pump is configured, and the number of operating pump units compares the amount of rainfall and the set value in the rain detection determination unit, Comparison between the rain arrival time arriving at the rainwater pump well and the set value of the predicted rainfall arrival time, comparison of the inflow water level and the set value in the rainwater inflow detection determination unit, and the rainwater flowing into the inflow well Based on a comparison between the estimated inflow arrival time arriving at the pump well and the set value of the estimated inflow arrival time, it is determined that the rain will arrive at the rainwater pump well, and it is necessary to start up multiple rainwater pumps installed. Rain Before the rainwater flows into the rainwater pump well by calculating the number of operating pumps, the rainwater pump is configured to be activated in advance, and the pump operation / stop control unit is operated by the pump operation number calculating unit. The present invention is characterized in that the operation or stop of a plurality of installed rainwater pumps is controlled based on the calculation result of the number of operating pumps.

  According to the present invention, it is possible to detect the inflow of rainwater in advance and cope with a sudden inflow of rainwater by performing a standby standby operation of the rainwater pump, and reduce the frequency of start / stop of the rainwater pump, A rainwater pump control device that reduces the burden on the private generator that drives the rainwater pump can be realized.

The block diagram which shows the rainwater pump control apparatus installed in the rainwater drainage machine station which is 1st Example of this invention. Explanatory drawing which showed the determination performed in the rain amount detection determination part which comprises the rainwater pump control apparatus of 1st Example shown in FIG. 1 with the relationship between rainfall and time. Explanatory drawing which showed the determination performed in the inflow detection determination part which comprises the rainwater pump control apparatus of 1st Example shown in FIG. 1 by the relationship between an inflow water level and time. Explanatory drawing which showed the relationship between each starting water level and stopping water level of a rainwater pump performed in the water level determination part which comprises the rainwater pump control apparatus of 1st Example shown in FIG. A control process for controlling the operation of the rainwater pump when the number of pump operation is 0 to 1 performed in the determination process of the pump operation number calculation unit constituting the rainwater pump control device of the first embodiment shown in FIG. The flowchart shown. A control process for controlling the operation of the rainwater pump when the number of pump operation is 2 to 3 performed in the determination process of the pump operation number calculation unit constituting the rainwater pump control apparatus of the first embodiment shown in FIG. The flowchart shown.

  A rainwater pump control apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

  A rainwater pump control apparatus according to a first embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a block diagram showing a configuration of a rainwater pump control apparatus according to a first embodiment of the present invention installed in a rainwater drainage station.

  As shown in FIG. 1, rainwater flowing into the rainwater pump well 3 of the rainwater drainage station is discharged into a river or the like by a plurality of rainwater pumps 101 to 103 installed in the rainwater drainage station. The installed control device 30 of the rainwater pump of this embodiment controls the operation of the plurality of rainwater pumps 101 to 103.

  As shown in FIG. 1, the rainwater drainage station where the rainwater pump control device 30 according to the present embodiment is installed includes an inflow dredge 1, a sand basin 2, and a rainwater pump well 3.

  The rainwater pump well 3 is provided with a plurality of rainwater pumps 101 to 103 for discharging rainwater flowing into the rainwater drainage station directly into the river from the rainwater drainage station, and a water level meter 13 is installed in the inflow tank 1. The water level gauge 14 is installed in the rainwater pump well 3. A rain gauge 12 is also installed at the rainwater drainage station for measuring rainfall.

  The rainwater pump control apparatus of the present embodiment controls the operation of a plurality of rainwater pumps 101 to 103 that drain rainwater collected from a surrounding area through a rainwater drain pipe to a rainwater drainage station to a nearby river or sea. It is.

  The rainwater pump control device 30 according to the present embodiment is detected by a rain amount detection / determination unit 20 that determines whether or not there is heavy rain from the rain measurement value detected by the rain gauge 12 and a water level meter 13 installed in the inlet 1. Based on the water level detected by the water level indicator 14 installed in the rainwater pump well 3 and the water level detected in advance and the water level set in advance, the current level is determined based on the current level. A water level determination unit 23 for determining the water level of the rainwater pump well 3 in each stage is provided.

  The rainwater pump control device 30 further includes a plurality of rainwater pumps 101 to 101 installed in the rainwater pump well 3 based on the information determined by the rain amount detection determination unit 20, the inflow detection determination unit 22, and the water level determination unit 23. Based on the calculated value of the pump operation number calculated by the pump operation number calculation unit 21, a plurality of storm water pumps 101 to 101 installed in the storm water pump well 3 are calculated. 103 is provided with a pump operation / stop control unit 24 for controlling the operation 103 and the operation stop.

  Then, the rain amount detection / determination unit 20 is based on the rainfall amount detected by the rain gauge 12 as shown in FIG. First rain detection detection for starting the first rainwater pump 101, all-station stoppable rain detection for stopping the rainwater pumps 101 to 103, and heavy rain detection and heavy rain end detection are detected.

  Based on the water level of the inflow trough 1 detected by the water level gauge 13 installed in the inflow trough 1, the inflow detection determination unit 22 relates to the start and stop of the rainwater pump with respect to the water level of the inflow trough 1 in FIG. 3. As a characteristic curve, based on the water level of the inflow trough 1, the first activation water level of the rainwater pump 101 and the water level at which all the rainwater pumps 101 to 103 can be stopped are detected.

  The pump operation number calculation unit 21 includes a plurality of rainwater pumps 101 to 103 installed in the rainwater pump well 3 based on the information determined by the rain amount detection determination unit 20, the inflow detection determination unit 22, and the water level determination unit 23. Calculates the number of pumps operated.

  The pump operation / stop control unit 24 controls the operation and operation stop of the plurality of installed rainwater pumps 101 to 103 based on the number of pump operations calculated by the pump operation number calculation unit 21.

  In this pump operation number calculation unit 21, in the rain amount detection determination unit 20, as shown in the flowchart of FIG. 5, when heavy rain is detected in STEP 201 where the rain amount measurement value detects heavy rain rainfall, a sudden inflow of rain water Therefore, the process proceeds to STEP 202 of the operation request for three pumps, and the rainwater pumps 101 to 103 are operated by the specified number.

  In addition, when the heavy rain is not detected and the first pump operation is performed when all the rainwater pumps are stopped, the rain amount detection determination unit 20 determines that the rain amount measurement value is one pump as shown in the flowchart of FIG. When the first start rain amount is detected in STEP 211 for detecting the first start rain amount, the process proceeds to STEP 214 for the expected rain arrival time count, and further proceeds to STEP 216 for the elapse of the rain arrival time. After a preset rain arrival prediction time until rainwater actually flows into the pump well 3, the process proceeds to STEP 218 for requesting operation of one pump, and the first pump of the rainwater pump 101 is activated.

  In addition, as shown in the flowchart of FIG. 5, when the inflow detection determination unit 22 detects the first start water level of the rainwater pump 101 in STEP 212 for detecting the inflow drowning water level at the first pump start water level, the inflow arrival level is detected. Proceed to STEP 215 of the expected time count, and further proceed to STEP 217 of the inflow arrival time elapse, and a preset inflow arrival estimated time elapse from the determination in the inflow detection determination unit 22 until the rainwater actually flows into the rainwater pump well 3 Later, the process proceeds to STEP 218 for requesting operation of one pump, and the first pump of the rainwater pump 101 is activated.

  Then, as shown in the flowchart of FIG. 5, the water level detected by the water level gauge 14 installed in the rain water pump well 3 is determined by the water level determination unit 23, and as shown in the flowchart of FIG. When the first activation water level H1 is detected, the process proceeds to STEP 218 for requesting operation of one pump, and the first rainwater pump 101 is activated immediately.

  As shown in the flowchart of FIG. 6, the additional activation of the rainwater pump during operation of one or more pumps is performed by STEP 222 in which the rainwater pump well level is detected as H2 as shown in the flowchart of FIG. When the activation water level H2 is detected, the process proceeds to STEP 223 for requesting operation of two pumps, and the second rainwater pump 102 is activated immediately.

  Then, as shown in the flowchart of FIG. 6, when the rain water pump well water level detects the third start water level H3 of the rain water pump in STEP 241 in which the rain water pump well water level detects H3, as shown in the flowchart of FIG. Proceeding to STEP 243 of the operation request, the third rainwater pump 103 is immediately activated.

  Further, the determination of stopping the rainwater pumps during operation of the three pumps in the determination of the water level determination unit 23 is as follows. As shown in the flowchart of FIG. 6, three rainwater pumps are detected in STEP251 where the rainwater pump well level is L3. When the third stop water level L3 is detected, the process proceeds to STEP 252 for the third pump stop request, and the third rainwater pump 103 is immediately stopped.

  As shown in the flowchart of FIG. 6, in the determination of the water level determination unit 23, the stop of the rainwater pump is stopped. As shown in the flowchart of FIG. 6, the second stop of the rainwater pump is stopped in STEP242 where the rainwater pump well level is L2. When the water level L2 is detected, the process proceeds to STEP 244 of the second pump stop request, and the second rainwater pump 102 is immediately stopped.

  And only in the determination of stopping all rainwater pumps during the rainwater pump operation in the determination of the water level determination unit 23, the rainfall measurement value can be stopped as shown in the flowchart of FIG. In step 224 for detecting the rainfall amount, after detection of the rainfall amount capable of stopping all the pumps shown in FIG. 2, in step 226 of the set predicted rainfall arrival time, after the set predicted rainfall arrival time In the determination of the inflow detection determination unit 22, as shown in the flowchart of FIG. 6, in STEP 227 for detecting the water level where the inflow water level can be stopped, after the detection of the water level where all pumps can be stopped shown in FIG. In step 229 of the estimated inflow arrival prediction time elapse, after the set inflow arrival prediction time elapses, the rainwater pump well level is detected in STEP 230 for detecting L1. Only when all conditions are detected when the first pump stop water level L1 for stopping the first rainwater pump 101 is detected, the process proceeds to STEP 230 of the pump stop request for all pumps. All units can be stopped.

  A supplementary description will be given of the configuration and function of the rainwater pump control device 30 that constitutes the rainwater pump control device of the present embodiment described above. The rainwater pump control device 30 is detected by a rain gauge 12 installed in a rainwater drainage station. The rain detection and determination unit 20 that determines the pump start rainfall and the heavy rain determination based on the detection signal of the rain gauge 12, and the rain water pumps 101 to 103 based on the detection signal of the water level gauge 13 detected by the water level gauge 13 installed in the inlet 1. An inflow detection determination unit 22 that determines the inflow water level to be activated is provided.

  The rainwater pump control device 30 starts the first rainwater pump H1 that activates the first rainwater pump 101 based on the detection signal of the water gauge 14 detected by the water gauge 14 installed in the rainwater pump well 3, and the first rainwater. The second start water level H2 for starting the pump 102, the third start water level H3 for starting the third rainwater pump 103, and all the stop water levels L1,2 for stopping the operation of all the rainwater pumps 101 to 103 A water level determination unit 23 for determining the water level of the second stop water level L2 that stops the operation of the third rainwater pump 102 and the third stop water level L3 that stops the operation of the third rainwater pump 103 is installed. Yes.

  The rainwater pump control device 30 includes a plurality of rainwater pumps 101 to 103 installed in the rainwater pump well 3 based on the information determined by the rain amount detection determination unit 20, the inflow detection determination unit 22, and the water level determination unit 23. A pump operation number calculation unit 21 that calculates the number of pump operations, and a pump operation / operation that controls the operation and stoppage of the rainwater pumps 101 to 103 according to the number of pump operations calculated by the pump operation number calculation unit 21. A stop control unit 24 is installed.

  Next, regarding each determination operation of the rain amount detection determination unit 20, the inflow detection determination unit 22, and the water level determination unit 23 provided in the rain water pump control device 30 constituting the rain water pump control device of the present embodiment of the present embodiment. explain.

  The rain amount detection determination unit 20 of the rainwater pump control device 30 makes a determination based on the rainfall amount in the characteristic diagram shown in FIG. 2 and the relationship between the time and each specified rain amount.

  For example, when the first start rainfall of the rainwater pump exceeds a certain time, it is determined that the first start rainfall is detected. Similarly, when the heavy rain rainfall is exceeded for a certain time, it is determined that the heavy rain is detected.

  On the contrary, when the heavy rain end rainfall falls below a certain time, it is determined that heavy rain has been detected, and similarly, when all rain stops at a certain time fall below a certain time, it is determined that all vehicles can be stopped.

  The inflow detection determination unit 22 of the rainwater pump control device 30 performs determination based on the inflow water level in the characteristic diagram shown in FIG. 3 and the relationship between the time and each specified water level.

  For example, when the first start water level of the rainwater pump exceeds a certain time, it is determined that the first start water level is detected, and conversely, when all the water stop possible water levels are below a certain time, judge.

  In the water level determination part 23 of the rainwater pump control apparatus 30, it determines with each regulation water level of the rainwater pump 101,102,103 shown in FIG.

  For example, the water level detected by the water level gauge 14 installed in the rainwater pump well 3 is the first start water level H for starting the first rainwater pump 101 and the second start water level for starting the first rainwater pump 102. When the third start water level H3 for starting the H2 and third rainwater pumps 103 is exceeded for a certain time, it is determined that the first, second, and third start water levels are detected.

  On the contrary, the water level detected by the water level gauge 14 installed in the rainwater pump well 3 stops the operation of all the rainwater pumps L1 and the second rainwater pump 102 which stops the operation of all the rainwater pumps 101 to 103. When the second stop water level L2 and the third stop water level L3 for stopping the operation of the third rainwater pump 103 are respectively below a certain time, all the stop water levels are detected, the second stop water level is detected, the third The stop water level is detected and determined.

  In the pump operation number calculation unit 21 of the rainwater pump control device 30, the number of operation of the rainwater pumps 101 to 103 is based on the determination results determined by the rain amount detection determination unit 20, the inflow detection determination unit 22, and the water level determination unit 23, respectively. Perform the operation.

  In the pump operation / stop control unit 24 of the rainwater pump control device 30, a plurality of rainwater pumps 101 to 103 installed in the rainwater pump well 3 based on the calculated value of the pump operation number calculated by the pump operation number calculation unit 21. The operation and stoppage of each are controlled.

  FIG. 5 and FIG. 6 show the calculation contents performed by the pump operation number calculation unit 21 provided in the rainwater pump control device 30 in the rainwater pump control device of this embodiment, respectively, in flowcharts.

  First, in each STEP of the flowchart calculated in the pump operation number calculation unit 21 of the rainwater pump control device 30 shown in FIG. 5, in STEP201 in which the rainfall measurement value detects the heavy rain rainfall, it is first determined whether or not heavy rain has been detected. .

  If it is determined that heavy rain has been detected in STEP 201 for detecting heavy rainfall, the process proceeds to STEP 202 for requesting operation of three pumps, and three rain water pumps 101 to 103 are prepared in preparation for a sudden inflow of rain water. Both are in standby operation.

  After that, as shown in FIG. 2, in step 201 where the rainfall measurement value detects heavy rainfall, when the end of heavy rain is detected, the process proceeds to step 210 and thereafter, and the number of operating rainwater pumps 101 to 103 is determined.

  First, if it is determined in STEP 210 that the number of pumps is 0 that the number of rainwater pumps 101 to 103 is 0, the rainfall measurement value proceeds to STEP 211 for detecting the first pump starting rain.

  If it is determined in STEP 211 that the rainfall measurement value is detected for the first pump start rain, it is determined that the first pump start rain is detected, the process proceeds to STEP 214 for the rain arrival prediction time count.

  When the rain arrival prediction time count starts in STEP 214 of the rain arrival prediction time count, the process proceeds to STEP 216 of the rain arrival prediction time elapse, and if it is determined that the rain arrival prediction time exceeds in STEP 216 of the rain arrival prediction time elapse Further, the process proceeds to STEP 218 for requesting operation of one pump, and the request for operating one pump is output as a calculation result.

  Further, in STEP 210 where the number of pumps operated is 0, it is determined that the number of pumps operated is 0, and in STEP 212 in which the inflow water level detects the first pumping water level, the water level of the inflow water 1 is the pump 1. Similarly, when it is determined that the start-up water level is reached, the process proceeds to STEP 215 of the inflow arrival prediction time count, and when the inflow arrival prediction time count starts in STEP 215 of the inflow arrival prediction time count, the inflow arrival prediction time elapses. If it is determined in STEP 217 that the predicted inflow arrival time has elapsed and the predicted inflow arrival time has been exceeded, the flow further proceeds to STEP 218 of the single pump operation request, and the single pump operation request is output as a calculation result. .

  Further, when it is determined that the number of pump operation is 0 in STEP 210 where the number of pumps is 0, in STEP 213 where the rainwater pump well level is H1, the rainwater pump well level is the first rainwater pump 101. Even when it is determined that the first starting water level H1 for starting is detected, the process proceeds to STEP 218 of the single pump operation request, and the single pump operation request is output as a calculation result.

  In STEP 213 in which the rainwater pump well level detects H1, if the rainwater pump well level is not determined to detect the first activation level H1 that activates the first rainwater pump 101, the new calculation result is Not output.

  Next, in each STEP of the flowchart calculated by the pump operation number calculation unit 21 of the rainwater pump control device 30 shown in FIG. 6, the number of pump operations 1 shown in FIG. 6 is continued from the flowchart shown in FIG. 5. In step 221, when it is determined that the number of pumps operated is one, in step 222, the rainwater pump well level is detected as H2 in the next STEP, and the rainwater pump well level is activated in step 222. When it is determined that the second starting water level H2 to be detected is detected, the process proceeds to STEP 223 for requesting operation of two pumps, and the request for operating two pumps is output as a calculation result.

  Then, in STEP 224 for detecting the rainfall that can be stopped by the rainfall measurement value, as shown in FIG. 2, if it is determined that the rainfall measurement value is detected by the rainfall that can be stopped, STEP 225 for starting the rainfall arrival prediction time count. Then, the process proceeds to STEP 226 where the rainfall arrival time has elapsed.

  In step 224 of detecting the rainfall that can be stopped by the rainfall measurement value, it is determined that the rainfall measurement value has not reached the rainfall that can be stopped. If the count has been started, the count at STEP 225 of the rain arrival prediction time count start is stopped.

  Further, in STEP 227 for detecting the water level at which the inflow water level can be stopped, as shown in FIG. 3, when it is determined that the water level at which the inflow water level can be stopped is detected, the flow proceeds to STEP 228 for starting the inflow arrival prediction time count. Further, the process proceeds to STEP 229 where the estimated arrival time has elapsed.

  In STEP 227 in which the inflow dredging level is detected as a stoppable water level, it is determined that the inflow dredging level has not reached the stoppable rainfall, and the inflow arrival prediction time count is started in STEP 228 which has already started the inflow arrival prediction time count. If so, the count in STEP 228 for starting the inflow arrival prediction time count is stopped.

  If it is determined that the two predicted time lapses of the predicted rainfall arrival time in STEP 226 of the predicted rainfall arrival time and the predicted inflow arrival time in STEP 229 of the predicted inflow arrival time are not satisfied, the pump is stopped. The calculation ends without performing the above determination.

  In addition, it is a case where it is determined that the two predicted time lapses of the rain arrival predicted time lapse in STEP 226 of the rain arrival predicted time lapse and the inflow arrival predicted time lapse of STEP 229 of the inflow arrival predicted time lapse are satisfied. Then, the process proceeds to STEP 230 where the rainwater pump well level detects L1, and the rainwater pump well level stops the operation of all the rainwater pumps 101 to 103 in STEP230 where the rainwater pump well level detects L1. Is detected, the process further proceeds to STEP 231 for a request for stopping all pumps, and a request for stopping all pumps is output as a calculation result.

  Moreover, in each STEP of the flowchart calculated by the pump operation number calculation unit 21 of the rainwater pump control device 30 shown in FIG. 6, two pump operation numbers shown in FIG. 6 are continued from the flowchart shown in FIG. In STEP 240, it is determined that the number of pumps operated is two, and in the next STEP, the rainwater pump well water level detects the H3, and in STEP 241, the third rainwater pump 103 is started. When it is determined that H3 is detected, the process proceeds to STEP 243 for requesting operation of three pumps, and the request for operating three pumps is output as a calculation result.

  Then, in STEP 241 in which the rainwater pump well level detects H3, it is determined that the third start water level H3 for starting the third rainwater pump 103 is not detected, and the rainwater pump well level detects L2. If it is determined in STEP 242 that the second stop water level L2 for stopping the operation of the second rainwater pump 102 is detected, the process proceeds to STEP 244 of the second pump stop request, and the second pump stop request is issued. Output as calculation result.

  If it is determined in STEP 242 that the second pump stop request is made that the second stop water level L2 for stopping the operation of the second rainwater pump 102 is not detected, the calculation ends.

Moreover, in each STEP of the flowchart calculated by the pump operation number calculation unit 21 of the rainwater pump control device 30 shown in FIG. 6, the flowchart shown in FIG.
In step 250 where the number of pumps operated is three, it is determined that the number of pumps operated is three, and the operation of the third rainwater pump 103 is performed in step 251 of the next STEP in which the rainwater pump well level is detected as L3. When it is determined that the third stop water level L3 that stops the operation is detected, the process proceeds to STEP 252 for the pump third stop request, and the pump third stop request is output as a calculation result.

  If it is determined in STEP 251 that the rainwater pump well level detects L3 that the third stop water level L3 that stops the operation of the third rainwater pump 103 is not detected, the calculation ends.

  The pump operation / stop control unit 24 is configured to control the operation and stop of a plurality of installed rainwater pumps 101 to 103 based on the calculation result calculated by the pump operation number calculation unit 21. Yes.

  According to the rainwater pump control apparatus of the present embodiment described above, the rainwater pump control apparatus is configured as described above, and the determination of the heavy rain by the rainfall amount and the rainwater inflow of the rainwater drainage station determined from the rainfall amount and the inflow water level. By detecting in advance and determining whether or not to stop, a function is added to the rainwater pump control system that provides operation / stop water level in stages to the rainwater pump well level to respond to a sudden inflow of rainwater and reduce the burden on equipment Can be achieved.

  As described above, according to the present embodiment, the inflow of rainwater is detected in advance, and the rainwater pump can be responded to a rapid inflow of rainwater by preceding standby operation, and the rainwater pump is started / stopped. It is possible to realize a rainwater pump control device that reduces the frequency and reduces the burden on the private generator that drives the rainwater pump.

  1: Inflow drench, 2: Sedimentation basin, 3: Rainwater pump well, 10: Inflow gate, 12: Rain gauge, 13, 14: Water level gauge, 20: Rain amount detection determination unit, 21: Number of pump operation number calculation unit, 22: Inflow detection determination unit, 23: water level determination unit, 24: pump operation / stop control unit, 30: rainwater pump control device, H1: first start water level, H2: second start water level, H3: third start water level , L1: Total stop water level, L2: Second stop water level, L3: Third stop water level, 101-103: Rainwater pump, 201-213: STEP, 214: Rain arrival prediction time count, 215: Inflow arrival prediction Time count, 216, 217: STEP, 218: Request to operate one pump, 221 to 227: STEP, 223: Request to operate two pumps, 231: Request to stop all pumps, 250, 251: STEP, 240 to 24 : STEP, 243: pump three operation request, 244: two pump second stop request, 252: pump third car stop request.

Claims (3)

A rainwater pump control device for controlling a plurality of rainwater pumps installed in a rainwater drainage station,
The rainwater pump control device includes a rainwater detection / determination unit that detects rainfall based on a detection value of a rainwater gauge, and a rainwater drainage station based on a water level detected by a first water level gauge installed at an inflow of the rainwater drainage station. A rainwater inflow detection determination unit that detects an inflow water level that has flowed into the rainwater, and a water level determination unit that determines the water level of the rainwater pump well based on the water level detected by the second water level gauge installed in the rainwater pump well of the rainwater drainage station The number of operating pumps calculated by the number of operating pumps calculated by the number of operating pumps and the number of operating pumps calculated by the number of operating pumps based on the respective determinations of the rain detection detection unit, the rainwater inflow detection determining unit and the water level determining unit. A pump operation / stop control unit for controlling operation / stop of the pump based on
The rain detection determination unit is configured with a set value of rainfall, the rainwater inflow detection determination unit is configured with a set value of inflow water level, and the water level determination unit includes a plurality of installed rainwater pumps. A set value for the water level of a different rainwater pump well is set for each,
The pump operation number calculation unit, the comparison between the rainfall amount and its set value in the rain amount detection determination unit, the comparison between the rain arrival time when the rain arrives at the rainwater pump well and the set value of the predicted rainfall arrival time, and Based on the comparison of the inflow water level and its set value in the rainwater inflow detection determination unit, and the comparison of the inflow arrival prediction time when the rainwater flowing into the inflow tank arrives at the rainwater pump well and the set value of the inflow arrival prediction time Before the rainwater flows into the rainwater pump well by calculating the number of rainwater pumps that need to be activated among the multiple rainwater pumps that have been determined. Configured to activate the rainwater pump;
The pump operation / stop control unit is configured to control operation or stop of a plurality of installed rainwater pumps based on a calculation result of the number of operation of rainwater pumps calculated by the number of operation units of pump operation. Control device for rainwater pump. In the control apparatus of the rainwater pump according to claim 1,
Among the water levels detected by the water level determination unit, a plurality of rainwater pump wells installed in the rainwater pump well, the pump operation number calculation unit sequentially from the low water level rainwater pump to the high water level rainwater pump, sequentially The rainwater pump control device is configured to start the rainwater pump. In the control apparatus of the rainwater pump according to claim 1,
The rainwater that activates the rainwater pump in the rainwater pump well by the calculation of the pump operation number calculation unit based on the rainfall detected by the rainfall detection determination unit and the inflow water level detected by the rainwater inflow detection determination unit, respectively. If it is determined that there is no inflow, install multiple units based on the set rain arrival prediction time and inflow arrival prediction time, and the rainwater pump well water level that is different for each rainwater pump well. A rainwater pump control device characterized in that all the rainwater pumps are stopped.

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