JP2018128768A - Flood countermeasure support system and flood countermeasure support method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flood countermeasure support system and method thereof capable of planning an appropriate flood countermeasure at a disaster such as heavy rainfall in a plant having a plurality of equipment buildings for housing equipment.SOLUTION: There are provided a rain water inflow amount calculation unit 7 which calculates amounts of rain water that inflow respective equipment buildings by using information on the amount of rain fall measured by an amount of rain fall measurement device 2 and facility information stored in a facility information database 6, an inundation time prediction unit 9 which calculates a time period until equipment is flooded for each equipment building by using the amount of rain water and the facility information, a priority determination unit 11 which determines the priority for taking a countermeasure for each equipment building on the basis of the inundation time, and a display unit 12 which displays the determination result of the priority.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to an inundation countermeasure support system and an inundation countermeasure support method.

A conventional water treatment facility has proposed a personnel placement support system for optimally arranging personnel based on weather forecast information as a measure against heavy rain.
Also, a system has been proposed that locks a watertight door device inside a nuclear power plant when there is a risk of flooding based on emergency earthquake early warning information and a detection signal of a flooded sensor.

JP 2007-148616 A JP 2014-173331 A

  The above-described conventional staffing support system divides the area where drainage pipes leading to facilities such as pump stations and water treatment facilities are arranged into a mesh shape, identifies the sections with high precipitation based on weather forecast information, and A processing place connected to the identified section through the drain pipe is extracted, and the personnel placement determination process is executed according to the load situation.

  However, in a large-scale plant such as a nuclear power plant, for example, equipment and facilities are distributed and arranged in various buildings on the site of the plant, and an opening of each equipment building that is a building in which the equipment and facilities are installed In addition, there is a problem that accurate inundation prediction cannot be performed without taking into account the inflow of rainwater from the penetrating part and the amount of rainwater remaining in the facilities such as the receiving pit and the drain pipe.

  When such an equipment building is flooded due to a disaster such as heavy rain, it is dealt with by a drainage operation using a portable drainage pump or the like by a worker in the plant. When there are multiple equipment buildings such as a nuclear power plant, the safety importance of the equipment that needs to be protected against inundation in the plant and the time delay until each equipment is inundated due to a disaster that has occurred. It is necessary to determine the priority of drainage work in consideration of such factors.

  Each embodiment of the present invention is made in order to solve the above-mentioned problem, and the purpose thereof is, for example, heavy rain or the like in a plant where various devices and facilities are arranged in the site such as a nuclear power plant. An object of the present invention is to provide an inundation countermeasure support system and an inundation countermeasure support method capable of planning an efficient inundation countermeasure even when a disaster occurs.

  In order to solve the above-described problem, a flooding countermeasure support system according to an embodiment of the present invention includes a rainfall amount prediction unit that obtains a predicted rainfall amount in the plant based on weather information around the plant, and is disposed in each of the plants. A facility information database storing therein facility information of a plurality of device buildings each containing at least one device and having an intrusion route through which rainwater enters, and a plurality of the device buildings and a plurality of the devices At least one of the priority setting unit in which safety priority is set according to the safety importance in the plant, the actual rainfall measured in each of the plurality of equipment buildings, and the rainfall prediction unit Based on the predicted rainfall and the facility information stored in the facility information database, through the intrusion route Based on the rainwater inflow amount calculated by the rainwater inflow amount calculation unit and the rainwater inflow amount calculation unit that calculates the amount of rainwater inflow that flows into the inside of the equipment building, the equipment in the device building is inundated. Based on the inundation time prediction unit for calculating the inundation time, the inundation time calculated by the inundation time prediction unit and the safety priority set in the priority setting unit, the plurality of the equipment buildings and the plurality of the plurality of the equipment buildings And a priority order determination unit that determines the priority order of the countermeasure against inundation regarding at least one of the devices.

  In addition, the inundation countermeasure support method according to the embodiment of the present invention includes an actual rainfall of each of a plurality of equipment buildings that are arranged in a plant and accommodate at least one equipment and have an intrusion route through which rainwater enters. A rainfall measurement step for measuring the amount, a rainfall prediction step for predicting a predicted rainfall in the plant based on weather information around the plant, an actual rainfall measured in each of the plurality of equipment buildings, and the rainfall Rainwater inflow that calculates the amount of rainwater inflow that flows into the equipment building through the intrusion path based on the predicted rainfall predicted in the quantity prediction step and the facility information of each of the plurality of equipment buildings Based on the amount of rainwater inflow calculated in the amount calculation step and the amount of rainwater inflow calculation, the time of inundation until the equipment of the equipment building is inundated The inundation time prediction step for calculating the inundation time, the inundation time calculated in the inundation time prediction step, and at least one of the plurality of equipment buildings and the plurality of equipment are set according to the safety importance in the plant And a priority order determination step of determining a priority level of the countermeasure against inundation regarding at least one of the plurality of device buildings and the plurality of devices based on the safety priority.

  According to the embodiment of the present invention, it is possible to plan an appropriate flooding countermeasure in the event of a disaster such as heavy rain.

It is a block diagram of the inundation countermeasure support system which concerns on 1st Embodiment. It is a block diagram (normal time) of the equipment building which concerns on 1st Embodiment. It is a block diagram (at the time of rain) of the equipment building which concerns on 1st Embodiment. It is a processing flow figure of the inundation countermeasure assistance system concerning a 1st embodiment. It is a block diagram (at the time of rain) of the equipment building which concerns on 2nd Embodiment.

  DESCRIPTION OF EMBODIMENTS Embodiments of an inundation countermeasure support system (hereinafter referred to as “the present system”) and an inundation countermeasure support method (hereinafter referred to as “the present method”) according to the present invention will be described below with reference to the accompanying drawings.

[First Embodiment]
The system and the method according to the first embodiment will be described with reference to FIGS.
(Configuration of equipment building)
1st Embodiment demonstrates the structure of the equipment building by which the penetration part is provided in the side wall as an intrusion path | route into which rain water invades.

  FIG. 2 illustrates the structure of an equipment building 30 that accommodates equipment 20 mainly used in an emergency, such as an emergency diesel generator or an emergency power supply device. Such a device building 30 is provided at a plurality of locations on the site of the nuclear power plant, for example, and various devices 20 are installed in each device building 30. In addition, in each embodiment, the plant in which the equipment building 30 is installed is not limited to a nuclear power plant, but can be applied as long as it is a plant in which a plurality of equipment buildings 30 accommodating the equipment 20 are arranged in the site. Further, the device 20 is not limited to those used in an emergency, such as an emergency diesel generator or an emergency power supply device, but can cover a wide variety of devices 20. The present system and method of the embodiment devise an appropriate inundation countermeasure in the event of a disaster such as heavy rain by determining the priority of the inundation countermeasure regarding the target facility consisting of at least one of the equipment building 30 and the equipment 20. System and method.

  In the present embodiment, the equipment building 30 has a semi-underground structure to protect the equipment 20 from flying objects flying during a tornado or the like. In addition, in order to protect the equipment 20 from flooding due to a tsunami, a watertight door 32 is provided at the entrance 31 of the equipment building 30, and a penetrating portion 39 provided on the wall 38 of the ground portion is surrounded outside the equipment building 30. A water shielding wall 33 is provided. In the present embodiment, the penetration part 39 corresponds to an intrusion route through which rainwater enters the inside of the equipment building 30.

  The device 20 is provided on the basement floor 34 of the device building 30. A base 36 is provided on the floor 35 of the basement 34, and the device 20 is installed on the base 36. A pit 37 is provided on the floor 35 of the basement 34. Due to the presence of these mounts 36 and pits 37, even if water starts to flow into the underground floor 34, it is possible to ensure a certain amount of time until the device 20 is inundated. In addition, when the underground floor 34 is flooded, a portable drain pump is installed in the pit 37 by an operator in the plant, and drainage work is performed.

  A pipe 21 is connected to the device 20. The pipe 21 extends from the penetration portion 39 to the outside of the equipment building 30 and is connected to another equipment building 30 through a piping space 40 surrounded by the water shielding wall 33 and the wall 38. The piping space 40 is not provided with drainage equipment such as a drain pipe in order to prevent a tsunami or the like from entering the piping space 40.

FIG. 3 illustrates the situation of rainwater inflow into the equipment building 30 that is assumed when heavy rain R occurs.
Even when heavy rain R occurs, when rainwater flows through the ground and arrives at the equipment building 30, the equipment building 30 can be protected from inundation by the watertight door 32 and the impermeable wall 33 as in the case of the tsunami. it can.

  However, since the piping space 40 surrounded by the water shielding wall 33 and the wall 38 is open at the top, rainwater falls into the piping space 40 during raining, and the rainwater W starts to accumulate at the bottom of the piping space 40. Since a drain pipe is not provided in the piping space 40, a certain amount of rainwater W is trapped in the piping space 40, and when the water level of the rainwater W reaches the installation height of the penetration portion 39, it passes through the penetration portion 39. The rainwater W begins to flow into the basement floor 34 of the equipment building 30.

The rainwater W that flows into the underground floor 34 of the equipment building 30 first accumulates in the pit 37, and when rainwater W that exceeds the capacity of the pit 37 flows in, it stays on the floor 35 of the underground floor 34 of the equipment building 30. If the increase of the rainwater W staying on the floor 35 of the underground floor 34 cannot be prevented, the equipment 20 may eventually be inundated and the safety of the plant may be threatened.
This system and this method support inundation countermeasures against rainwater W in order to prevent the occurrence of such a situation.

(Configuration of inundation countermeasure support system)
As shown in FIG. 1, the present system 1 includes a rainfall measurement device 2, an inundation sensor 3, an alarm device 4, a rainfall prediction unit 5, a facility information database (DB) 6, a rainwater inflow calculation unit 7, and a rainwater retention amount storage. Unit 8, flooding time prediction unit 9, safety priority setting unit 10, priority order determination unit 11, display unit 12, and work completion information input unit 13.

The rainfall measuring device 2 is a device for measuring the actual rainfall for each equipment building 30.
The inundation sensor 3 is a device for detecting inundation in the equipment building 30, and is installed at a predetermined height lower than the installation height from the floor 35 of the equipment 20, as shown in FIGS. Yes. Thereby, since it is possible to secure the time from when the inundation sensor 3 detects inundation until the device 20 is inundated, it is possible to reliably perform the inundation preventing operation of the device by an operator. As the inundation sensor 3, a sensor of a type that generates a detection signal when the water level of the rainwater W reaches a predetermined level, for example, a float type level switch is used.

  The alarm device 4 is an apparatus for outputting an alarm when the inundation sensor 3 detects a device building 30 at risk of inundation and when the inundation sensor 3 detects inundation in the device building 30.

  The rainfall amount prediction unit 5 is a functional block that predicts a predicted rainfall amount in the plant based on weather information around the plant. The meteorological information includes, in addition to weather forecasts issued by public institutions, pinpoint precipitation forecast information such as high-performance rain cloud radars used at the private level.

  In the facility information database 6, facility information in the plant of the plant facility is stored. The facility information includes information for each device building 30 in which each device 20 is provided, that is, the arrangement position and installation height of the device building 30 in the plant, the area of the opening of the piping space 17, and the bottom 41 of the piping space 17. To the penetration part 39, the floor area of the basement floor 34 of the equipment building 30, the volume of the pit 37, the height of the gantry 36, and the like are included.

  The rainwater inflow calculation unit 7 obtains the actual rainfall information by the rainfall measuring device 2 and the predicted rainfall by the rainfall prediction unit 5, and uses the information and the facility information stored in the facility information database 6. It is a functional block that uses and calculates the amount of rainwater inflow that flows into the equipment building 30.

  The rainwater retention amount storage unit 8 stores the amount of rainwater trapped in the piping space 40, the pit 37, etc. (hereinafter referred to as rainwater retention) when rain has occurred but the rain amount is not so high that the device 20 is inundated. This is a functional block for storing the rainwater retention amount to the inundation time prediction unit 9 when the next rainfall occurs.

  The inundation time prediction unit 9 includes a measured value of rainwater amount by the rainwater inflow amount calculation unit 7, facility information stored in the facility information database 6, a rainwater retention amount stored in the rainwater retention amount storage unit 8, and Is a functional block for calculating the time (water immersion time) t until the device 20 is submerged.

  Here, the inundation time t is the estimated time t1 until the water level of the rainwater W that has entered the piping space 40 reaches the height of the penetration part 39, and the rainwater W flows into the equipment building 30 through the penetration part 39. It is calculated as a total value (t1 + t2) with the predicted time t2 until the water level of the rainwater W accumulated on the basement floor 34 of the equipment building 30 reaches the height of the gantry 36. At that time, the amount of rainwater flowing into the equipment building 30 is assumed to be equal to the amount of rainwater that has further fallen into the piping space 40 after the water level of the rainwater W accumulated in the piping space 40 reaches the height of the through-hole 39. Calculated.

  Further, in calculating the inundation time t, the rainwater retention amount in the piping space 40 or the pit 37 is taken into consideration. That is, even if the amount of rainwater entering the piping space 40 is the same, if the rainwater W has already been trapped in the piping space 40, the predicted time t1 is shortened accordingly. Similarly, when rainwater W has already been trapped in the underground floor 34 of the equipment building 30, the predicted time t2 is shortened accordingly.

  The safety priority setting unit 10 is a functional block in which the safety priority of the device 20 is set such as the importance for each device 20 for ensuring the safety of the plant and information related to the combination of the devices 20. The safety priority setting unit 10 may set the importance for each device building 30 instead of the importance for each device 20, and set the importance for each device 20 and the importance for each device building 30 respectively. It doesn't matter. That is, the safety priority setting unit 10 is set with a safety priority corresponding to the safety importance in the plant for at least one of the plurality of device buildings 30 and the plurality of devices 20.

  The priority determination unit 11 is based on the inundation time t calculated by the inundation time prediction unit 9, the inundation detection information from the inundation sensor 3, and the priority information set in the safety priority setting unit 10. FIG. 6 is a functional block for determining a priority level of inundation measures regarding a target facility including at least one of the equipment building 30 and the equipment 20. Specifically, the priority determining unit 11 has a function of determining the priority of the device building 30 or the device 20 having a shorter inundation time t as a higher priority, the device building in which inundation is detected earlier by the inundation sensor 3. 30 or the device 20 having a higher priority in securing plant safety based on the priority information set in the safety priority setting unit 10 and the function of determining the priority of the device 20 as higher. And the function of determining the priority of the device building 30 in which the device 20 is installed as higher.

The display unit 12 provides support for drainage countermeasures such as the inundation time t for each device building 30 calculated by the inundation time prediction unit 9, the determination result of the priority for each device building 30 or for each device 20 by the priority determination unit 11. It is a functional block for displaying various information for the purpose.
The work completion information input unit 13 is a functional block for inputting information indicating that the drainage work has been completed for each device building 30.

(Operation of inundation countermeasure support system)
Next, the operation of the present system 1 and the present method will be described according to the processing flow of FIG. In the following, the safety priority for each device 20 is set in the safety priority setting unit 10 and the priority determination unit 11 exemplifies the case of determining the priority level of the inundation countermeasure for each device building 30. As described above, the safety priority for each device building 30 is set in the safety priority setting unit 10, and the priority determination unit 11 determines the priority of the flood countermeasures for each device building 30 or for each device 20. I do not care.

  The system 1 first measures the actual rainfall for each equipment building 30 by the rainfall measuring device 2 (step S1: rain measurement processing) and predicts the predicted rainfall based on weather information (step S2: rainfall). Quantity prediction process).

  Next, the rainfall (actual rainfall) measured in the rainfall measurement process (step S1), the rainfall predicted in the rainfall prediction process (step S2) (predicted rainfall), and stored in the facility information database 6 The amount of rainwater inflow flowing into each equipment building 30 is calculated on the basis of the facility information that has been set (step S3: rainwater inflow amount calculation processing).

  In the rainwater inflow calculation processing (step S3), first, the amount of rainwater that has entered the piping space 40 is calculated, and rainwater that flows into the equipment building 30 through the penetration 39 based on the value of the rainwater amount. The inflow is calculated. At the time of the calculation, when there is no rainfall around the plant, the predicted rainfall amount by the rainfall amount prediction process (step S2) is used, and when the rainfall actually occurs, the rainfall amount prediction process. The predicted rainfall by (Step S2) and the actual rainfall by the rainfall measurement process (Step S1) are used.

  Next, it is determined for each equipment building 30 whether or not the amount of rainwater inflow has reached a threshold (step S3). Specifically, based on the value calculated by the rainwater inflow calculation process (step S3) and the facility information stored in the facility information database 6, the accumulated value of the amount of rainwater that has fallen into the piping space 40 is obtained. Then, it is determined whether or not the maximum amount of rainwater that can be trapped in the piping space 40 or the pit 37 has been reached.

If the rainwater inflow amount does not reach the threshold value (step S4: No), the rainwater inflow amount information for each equipment building 30 stored in the rainwater retention amount storage unit 8 is updated (step S5), and the rainwater inflow amount is again. Calculation processing (step S3) is executed.
On the other hand, when the rainwater inflow amount reaches the threshold value (step S4: Yes), the inundation time prediction process (step S6) is executed.

In the inundation time prediction process (step S6), the rainwater inflow amount calculated by the rainwater inflow amount calculation process (step S3), the facility information stored in the facility information database 6, and the rainwater retention amount storage unit 8 are stored. The process of calculating the inundation time t for each equipment building 30 is executed using the rainwater retention amount. Immediately thereafter, the flooding time alarm process (S7) is executed.
In the flooding time alarm process (S7), the alarm device 4 is activated to perform an alarm output of the flooding time of the equipment building 30 where there is a risk of flooding.

  Next, priority order judgment / update processing (step S8) is executed. In the priority order judgment / update process (step S8), the equipment building is based on the inundation time t calculated by the inundation time calculation process (step S6) and the priority information set in the safety priority setting unit 10. Processing is performed to determine the priority order for taking countermeasures against inundation every 30 or every device 20.

  Next, a display process (step S9) is executed. In the display process (step S9), the priority for each equipment building 30 determined by the priority order judgment process (step S8) and the inundation time t for each equipment building 30 calculated by the inundation time prediction process (step S6) are displayed. Processing to be displayed on the unit 12 is performed. On the display unit 12, the priority order and the flooding time t for each device building 30 are sorted and displayed in the order of the shortest flooding time t. A worker in the plant arranges an additional worker and a portable drainage pump based on the number of the equipment buildings 30 displayed on the display unit 12, the priority for each equipment building 30 and the inundation time t.

  In addition, since heavy rain did not occur at the beginning, after the calculation of the amount of rainwater inflow into the equipment building 30 using the predicted rainfall calculated by the rainfall prediction unit 5, The steps S3 to S9 are executed in real time on the basis of the predicted rainfall by the rainfall forecasting unit 5 and the actual rainfall by the rainfall measuring device 2, and the priority order and the inundation time t for each equipment building 30 are updated. Is done.

  Next, for each device building 30, a process is performed to determine whether or not the inundation sensor 3 has detected inundation (step S10: inundation detection process). When the inundation is detected, the inundation alarm process (step S11) is immediately executed.

  In the inundation alarm process (step S11), an alarm is output that an inundation of a dangerous water level that requires drainage has occurred in the equipment building 30 in which the inundation sensor 3 that has detected the inundation is installed. When this alarm output is made, the worker promptly starts the drainage work of the corresponding equipment building 30 based on the priority order displayed on the display unit 12 (step S14).

Then, every time the inundation sensor 3 detects inundation (step S10), the process after the inundation time prediction / update process (step S8) is executed again.
At that time, in the priority order judgment / update process (step S8), the priority order update process for increasing the priority order of the equipment building 30 in which inundation is detected earlier is executed. And the priority and the flooding time t for each updated equipment building 30 are displayed on the display unit 12 by re-sorting in order from the shortest flooding time t (step S9: display process). Based on the updated priority order displayed on the display unit 12, the worker performs worker placement and drainage work on each device building 30 (step S14).

  Thereafter, every time the drainage work of each device building 30 is completed, information to that effect is input to the work completion information input unit 13 by the worker (step S12). The system 1 updates the priority every time information indicating that the drainage work is completed is input to the work completion information input unit 13 (step S8), and sets the equipment building 30 in which the drainage work is completed as a target for continuous monitoring. Displayed (step S9).

Thereafter, a process for determining whether or not there is another equipment building 30 that requires drainage work is performed (step S13), and when it is determined that there is another equipment building 30 that requires drainage work (step S13). : Yes), the process after the flooding time prediction / update process (step S8) is executed again. That is, the priority order determination process / update process (step S8), the display process (step S9), and the like are continued until there is no equipment building 30 that needs to be drained.
On the other hand, if it is determined that the rain has stopped and there is no other equipment building 30 that needs to be drained (step S13: No), all the processes are terminated.

(effect)
As described above, according to the present system 1, in a plant facility having a plurality of equipment buildings 30 that accommodate the equipment 20, each equipment is based on the actual rainfall by the rainfall measuring device 2 and the predicted rainfall by the weather information. Since it is possible to calculate the amount of rainwater inflow into the building 30 and inform the objective priority of each equipment building 30 to be inundated, more important equipment can be used without relying only on human judgment as in the past. Appropriate personnel can be assigned to preferentially protect 20 from flooding.

  In addition, according to the present system 1, by calculating the amount of rainwater inflow into each equipment building 30 based on the actual rainfall by the rainfall measuring device 2 and the predicted rainfall by the weather information, The risk of flooding can be determined early. And when the equipment building 30 with the risk of flooding is detected, a flooding time alarm is issued and the flooding time t until the equipment 20 installed in the equipment building 30 is flooded is notified. Therefore, it is possible to secure workers for drainage work and arrange necessary materials and equipment in advance.

  Moreover, according to this system 1, when the equipment building 30 with the risk of flooding is detected by predicting the flooding time, the corresponding equipment building 30 is notified by the flooding time alarm (step S7). Appropriate preparations for the drainage work can be performed, such as securing workers for the drainage work of the corresponding equipment building 30 and arranging necessary materials and equipment. Further, when the inundation sensor 3 actually detects the inundation of the dangerous water level, the fact is informed by the inundation alarm (step S11), so that the drainage work of the corresponding equipment building 30 can be started promptly. it can. Thus, by performing two-stage alarm output with different alarm levels, appropriate and quick drainage measures can be taken.

  Moreover, according to this system 1, since the inundation sensor 3 installed in each apparatus building 30 is installed in the predetermined height lower than the installation height of the apparatus 20, the inundation sensor 3 requires drainage work. Since the time until the device 20 actually starts to be inundated after the occurrence of the inundation at the critical water level is detected, an operator is immediately placed in the device building 30 after the inundation alarm is output. Thus, the drainage work can be started at an appropriate timing. Thus, by appropriately grasping the timing when drainage work is required and arranging the workers, more appropriate and quick drainage measures can be taken. In addition, by arranging workers at an appropriate timing in this way, it is possible to arrange workers on a more urgent site and increase the efficiency of drainage work in the entire facility.

  Moreover, according to this system 1, since the priority order which should perform the drainage work for every apparatus building 30 is displayed on the display part 12, it is possible to perform worker arrangement etc. after clearly grasping the priority order. In addition, since efficient drainage work is possible when the drainage work of the plurality of equipment buildings 30 is performed, it is possible to cope with a small number of workers.

  In addition, according to the present system 1, information on the amount of rainwater that has already accumulated in the piping space 40 and the pit 37 is stored, and information on the amount of rainwater that has already accumulated and the actual rainfall in the next rainfall are stored. Since the time until the device 20 reaches inundation is predicted based on the rainfall amount information such as the amount and the predicted rainfall amount, it is possible to perform accurate prediction even in a situation where rainfall occurs intermittently.

  In addition, according to the present system 1, even when it is impossible to implement countermeasures against flooding of all the devices 20, information on the priority for each device 20 and the combination of the devices 20 in securing plant safety. Therefore, it is possible to ensure the safety of the plant by determining the priority order for performing the drainage work for each equipment building 30 and performing the drainage work according to the priority order.

[Second Embodiment]
In the first embodiment, the present system 1 for supporting flooding countermeasures of the equipment building 30 in which the equipment 20 such as an emergency diesel generator is arranged has been described. However, as shown in FIG. There is no need to provide the penetrating portion 39, and an opening 45 such as an exhaust pipe may be provided in the ceiling portion of the equipment building 30.

  In the second embodiment, a description will be given of the present system 1 for supporting countermeasures against inundation of an equipment building 30 in which an opening 45 such as an exhaust pipe is provided in a ceiling portion. The configuration of the system 1 of the second embodiment is the same as that shown in FIG. That is, in 1st Embodiment, although the penetration part 39 provided in the wall 38 of the equipment building 30 showed the example used as an intrusion path | route into which rainwater penetrate | invades into the inside of the equipment building 30, in 2nd Embodiment, The case where the opening part 45 of the equipment building 30 becomes an intrusion route into which rainwater enters the inside of the equipment building 30 is illustrated.

When there is an opening 45 in the ceiling as in the equipment building 30 shown in FIG. 5, rainwater falls directly into the equipment building 30 from the opening 45 during rain.
Therefore, in the system 1 of the second embodiment, the facility information database 6 includes the area of the opening 45 in addition to the floor area of the underground floor 34, the volume of the pit 37, the height of the mount 36, and the like. Stored as facility information.

The rainwater inflow calculation unit 7 calculates the amount of rainwater that falls into the equipment building 30 from the opening 45 based on the area of the opening 45 and the rainfall information.
The inundation time prediction unit 9 determines whether the device 20 is based on the rainwater amount calculated by the rainwater inflow amount calculation unit 7, the floor area of the underground floor 34, the volume of the pit 37, the height of the gantry 36, and the like. The inundation time t until inundation is calculated.

  Based on the inundation time t, the priority determination unit 11 determines the priority order for each device 20 to take measures against inundation, and the display unit 12 displays the inundation time t for each device building 30, and for each device building 30. Various information for supporting drainage countermeasures, such as priority, is displayed.

  Thus, according to this system 1 of the second embodiment, countermeasures against inundation should be taken even in a situation where rainwater falls directly into the equipment building 30 from the opening 45 provided in the ceiling portion of the equipment building 30. It is possible to judge objective priorities for each equipment building 30 and display and notify the results, so that it is appropriate to protect more important equipment from flooding preferentially without relying solely on human judgment. It becomes possible to assign workers to.

  As mentioned above, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, combinations, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  For example, in the first embodiment, the present system 1 for protecting the equipment 20 from the inundation caused by rainwater that has entered the piping space 40 flowing into the equipment building 30 from the through portion 39 provided in the wall 38. In the second embodiment, the present system 1 for protecting the device 20 from inundation by rainwater that falls directly into the device building 30 from the opening 45 provided in the ceiling portion of the device building 30 is shown respectively. However, the present system 1 can also be applied to the equipment building 30 having both the penetration part 39 and the opening part 45.

  Moreover, in the said embodiment, although the thing of the type which detects inundation is used as the inundation sensor 3 when the water level of the rain water W reaches a certain height, the liquid level which can be detected also including a water level change It is also possible to use a level sensor. By using the liquid level sensor, for example, it is possible to detect the water level rising speed of the rainwater W staying in the equipment building 30, so that the inundation time calculation process (step S6) taking into account the water level rising speed is used. It becomes possible to calculate the time t with higher accuracy.

  In the embodiment, the rainwater intrusion path into the interior of the equipment building 30 is exemplified for the side wall penetrating portion and the ceiling opening, but the rainwater intrusion path is not limited to these. As long as there is a portion that is not watertight in the building 30, it may be the target of the equipment building 30 in the present embodiment.

DESCRIPTION OF SYMBOLS 1 ... Inundation countermeasure support system, 2 ... Rainfall measuring device, 3 ... Inundation sensor, 4 ... Alarm device, 5 ... Rainfall prediction part, 6 ... Facility information database, 7 ... Rainwater inflow calculation part, 8 ... Rainwater retention amount Storage unit, 9 ... Inundation time prediction unit, 10 ... Safety priority setting unit, 11 ... Priority order determination unit, 12 ... Display unit, 13 ... Work completion information input unit, 20 ... Device, 33 ... Impermeable wall, 30 ... Equipment building, 34 ... Basement, 37 ... Pit, 38 ... Wall (side wall), 40 ... Piping space, 45 ... Opening, W ... Rainwater

Claims (5)

A rainfall amount prediction unit for obtaining a predicted rainfall amount in the plant based on weather information around the plant;
A facility information database each storing facility information of a plurality of device buildings that are arranged in the plant and contain at least one device and in which there is an intrusion route through which rainwater enters;
A priority setting unit in which a safety priority according to the safety importance in the plant is set for at least one of the plurality of device buildings and the plurality of devices;
Based on the actual rainfall measured by each of the plurality of equipment buildings, the predicted rainfall calculated by the rainfall prediction unit, and the facility information stored in the facility information database, A rainwater inflow calculation unit for calculating an inflow of rainwater flowing into the equipment building,
Based on the rainwater inflow amount calculated by the rainwater inflow amount calculation unit, an inundation time prediction unit that calculates the inundation time until the device of the equipment building is inundated,
Based on the inundation time calculated by the inundation time prediction unit and the safety priority set in the priority setting unit, the priority order of inundation countermeasures regarding at least one of the plurality of device buildings and the plurality of devices An inundation countermeasure support system comprising: a priority order determination unit for determining   The inundation countermeasure support system according to claim 1, further comprising a rainwater retention amount storage unit that stores the amount of rainwater remaining in the equipment building. A rainfall measurement step for measuring the actual rainfall of each of a plurality of equipment buildings which are arranged in the plant and contain at least one device and in which there is an intrusion route through which rainwater enters;
A rainfall prediction step for predicting a predicted rainfall in the plant based on weather information around the plant;
Based on the actual rainfall measured in each of the plurality of equipment buildings, the predicted rainfall predicted in the rainfall prediction step, and the facility information of each of the plurality of equipment buildings, through the intrusion route A rainwater inflow calculation step for calculating the amount of rainwater inflow flowing into the equipment building; and
Based on the rainwater inflow amount calculated in the rainwater inflow amount calculation step, an inundation time prediction step for calculating the inundation time until the device of the equipment building is inundated;
Based on the inundation time calculated in the inundation time prediction step, and the safety priority set according to the safety importance in the plant for at least one of the plurality of equipment buildings and the plurality of equipment. A priority order determining step for determining a priority level of a countermeasure against flooding related to at least one of the plurality of equipment buildings and the plurality of equipment,
An inundation countermeasure support method characterized by comprising: A drainage work step for performing drainage work based on the priorities;
4. The inundation countermeasure support method according to claim 3, further comprising a priority update step of updating the priority after the drainage operation step is completed. 5. The inundation countermeasure support method according to claim 3, wherein the priority determination step further uses a rainwater amount staying in the equipment building for the determination of the priority.

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