KR102235061B1 - Safe-shutdown equipment operator action management system in case of fire at nuclear power plant - Google Patents

Abstract

The present invention relates to an operator action management system and method for a safe-shutdown device in case of the fire at a nuclear power plant and, more specifically, to an operator action management system and method for a safe-shutdown device in case of the fire at a nuclear power plant capable of making measures for a fire safety stop device for each fire zone into a database in case of the first based on procedures related to the shutdown of a nuclear power plant, notifying an operator of the measures to be taken for a fire safety stop device in a fire zone where the fire occurred and a fire safety stop device for a fault tree of a fire safety stop device in case of the fire, monitoring whether an operator has correctly performed an action according to notified measures, and checking whether a fire safety stop device in a fire zone according to measures is operating normally.

Description

{Safe-shutdown equipment operator action management system in case of fire at nuclear power plant}

The present invention relates to an operator action management system and method in the event of a fire at a nuclear power plant, and in more detail, based on procedures related to the shutdown of a nuclear power plant, a database of actions taken for fire safety stop devices for each fire zone in the event of a fire is made into a database, and a fire occurs. In the event of a fire, notify the operator of the measures taken for the fire safety stop device in the fire zone where the fire occurred and the fire safety stop device in the tree of the fault tree of the fire safety stop device, and monitor whether the operator correctly performed the measures according to the notified measures. And, it relates to an operator's action management system and method for a fire safety stop device in the event of a nuclear power fire, which can check whether the fire safety stop device in the corresponding fire zone according to the measures is in normal operation.

In general, a nuclear power plant (or "nuclear power" for short) literally means a power plant that uses nuclear power to generate power. Nuclear power plants include fusion nuclear power plants and fission nuclear power plants, but usually means nuclear fission nuclear power plants.

These nuclear power plants are in the spotlight in many countries because their power generation cost per kilowatt is significantly lower than that of other power plants (thermal power, hydropower, etc.) and can supply a lot of power stably.

On the other hand, nuclear power plants have a very close relationship with radioactivity and lead to large-scale accidents with enormous consequences when an accident occurs.Therefore, various safety systems are required, and appropriate measures of the operator are required whenever a breakdown or fire occurs.

In particular, multiple malfunctioning events including a nuclear power plant fire event have occurred, and multiple malfunction analysis and measures are being conducted for the power plant, and the reinforced fire protection regulatory guidelines R.G. In accordance with 1.189 Rev.2, a fire abnormal operation procedure was prepared and operated.

In the case of domestic nuclear power plants, it is required to include multiple malfunction analysis when performing fire risk analysis in accordance with the Korean National Security Agency's Notice No. 2018-9, and accordingly, fire risk analysis including multiple malfunction analysis for power plants is being performed.

In addition, it is required to prepare and implement a fire abnormal operation procedure that includes on-site action procedures of operators for fire-protected areas where a fire may affect the safety shutdown and maintenance functions of nuclear reactors in accordance with Notification No. 2018-8 of the Korea Security Council.

However, most of the procedures related to fire response and extinguishing activities are included in the fire-related abnormal operation procedures of domestic nuclear power plants, and there are some procedures related to the safety stop and maintenance function of the nuclear power plant. There is no action taken by the operator considering the effect of fire.

In addition, the abnormal operation procedure related to fire is a guideline, and since the operator has to find and take action every time an incident occurs, it takes a lot of time, and thus, there is a problem that the appropriate action time may be missed.

In addition, it is difficult for the operator to memorize all of the abnormal operation procedures related to fire, and even if it is memorized, it is difficult to determine whether the measures are appropriate.

Due to this problem, the operator is guided to the fire-related emergency operation procedure for the failure of the fire safety stop device including the analysis of the fire zone and multiple malfunctions in the fire zone, and the action of the operator is monitored to take measures according to the emergency operation procedure. There is a need to develop a system that can certify whether or not.

Republic of Korea Patent Registration No. 10-1801034 (announced on November 24, 2017)

An object of the present invention is to make a database of measures for fire safety stop devices for each fire zone in case of a fire based on procedures related to stopping a nuclear power plant, and fire safety stop devices and the fire safety stop in the fire zone where a fire occurs in the event of a fire. Fire safety shutdown of equipment failure trees Notify the operator of the measures taken for the equipment, monitor whether the operator has correctly taken measures according to the notified measures, and normal operation of the fire safety stop equipment in the relevant fire zone according to the measures. It is to provide an operator action management system and method for fire safety stop devices in case of a nuclear power plant fire that can check whether or not.

In order to achieve the above objectives, the operator's action management system for safety stop devices in the event of a nuclear fire, monitors the occurrence of fire by multiple fire zones classified in buildings within the nuclear power plant, and detects fire when fire is detected. A fire detection unit for outputting fire detection information including information on a fire prevention area for an area; It is connected to a fire safety stop device that can be electrically connected among the fire safety stop devices installed in the fire area, detects the operation state of the connected fire safety stop device, and includes information about the operation status and fire area information of the installed fire area. A device operation detection unit that outputs fire safety stop device information; And when fire is detected by the reception of fire detection information from the fire detection unit, according to the pre-stored stop-related procedure, information about the operator's action on fire safety stop devices including multiple malfunction fire safety stop devices for each fire zone is provided to the operator's terminal unit. And, through the device operation detection unit, it is determined whether the operator's action corresponding to the operator's action information is being taken, and the suitability of the action is determined to determine if the operator's action is inappropriate, the operator's action information for the unsuitable fire safety stop device. It characterized in that it comprises a fire operator action management unit for managing the action of the fire safety stop device of the operator in accordance with the fire by retransmitting the to the operator terminal unit.

The fire operator action management unit includes an operator action DB that stores operator action information for at least one fire safety stop device configured for each fire zone when a fire occurs based on a procedure document related to the shutdown of a nuclear power plant, and a multiplex for each fire safety stop device. A storage unit including a fault tree DB for storing fault trees in consideration of malfunction; And when a fire is detected due to the reception of fire detection information from the fire detection unit, the operator's action DB extracts information about the operator's actions for the fire safety stop device in the fire zone where the fire occurred, and refers to the faulty tree DB for the fire safety. After extracting the operator action information for the fire safety stop device that may cause multiple malfunctions on the stationary device, the operator action information including the operator action information is generated and provided to the operator's terminal unit, and the device operation detection unit It determines whether the operator's action corresponding to the operator's action information is appropriately performed, and if the operator's action is inappropriate, the operator's action information for the unsuitable fire safety stop device is retransmitted to the operator's terminal to stop the fire safety of the operator in accordance with the fire. It characterized in that it comprises a management control module for managing the measures of the device.

The management control module may include: a fire monitoring unit configured to monitor whether fire detection information is received from the fire detection unit to monitor whether a fire occurs in an arson area of a building; A fire safety stop device including information on the operation status of the fire safety stop device and the information on the fire zone of the fault tree for the fire safety stop device by referring to the fire safety stop device and the fault tree DB in the fire prevention area of the building from the device operation detection unit. An information collection unit that collects information; When a fire is detected in the building through the fire monitoring unit, the operator's action information is extracted from the operator's action DB for the fire safety stop device in the fire zone, and refers to the faulty tree DB for the fire safety stop device. A fire action action generation unit for extracting operator action information for a fire safety stop device in which multiple malfunctions may occur and then generating operator action information including the operator action action information; A fire measures provision unit for transmitting the operator action information to the operator terminal unit; Fire safety stop included in the driver action information collected through the information collection unit after transmission of the driver performance check list information received from the driver's terminal unit and the driver action information for the driver check list included in the driver action information An operator action performance information collection unit that collects operator action action information including information on a fire safety stop device of the device; And comparing the collected operator action information with the operator action information to determine whether the operator's actions have been appropriately performed, and if the operator's actions are inappropriate, retransmitting the operator action information for the unsuitable fire safety stop device to the operator's terminal unit. It characterized in that it comprises an operator's action suitability determination unit.

In addition, the method of managing operator measures for safety stop devices in the event of a nuclear power fire is a fire monitoring system that monitors whether a fire occurs in the fire zone of a building by monitoring whether the management control module of the fire operator action management unit receives fire detection information from the fire detection unit. process; The management control module includes operation state information and fire zone information of the fire safety stop device of the fault tree for the fire safety stop device by referring to the fire safety stop device and the fault tree DB in the fire zone of the building from the device operation detection unit. Information collection process for collecting fire safety stop device information; When the management control module detects a fire in the building during the fire monitoring process, it extracts information about the operator's actions for the fire safety stop device in the fire zone where the fire occurred from the operator action DB, and refers to the fault tree DB to the fire safety stop device. After extracting operator action information for a fire safety stop device in which multiple malfunctions may occur, generating operator action information including the operator action information and transmitting the information to the driver's terminal unit; An operator action performance information collection process in which the management control module collects operator action action information according to the action of the operator through at least one of a device motion detection unit and an operator terminal unit; And comparing the collected operator action information with the operator action information to determine whether the operator's actions have been appropriately performed, and if the operator's actions are inappropriate, retransmitting the operator action information for the unsuitable fire safety stop device to the operator's terminal unit. It characterized in that it includes a process of determining suitability of an operator's action.

The process of collecting operator action performance information includes: a fire safety stop device information collection step of collecting, by the management control module, fire safety stop device information including operation state information and fire zone information of the fire safety stop device in the fire zone of the building; And multi-malfunction device information collecting step of collecting information on multiple malfunctioning fire safety stopping devices including operation state information and fire zone information for fire safety stopping devices in a faulty tree in which multiple malfunctions related to the fire safety stopping device may occur. It characterized in that it comprises a.

The present invention has the effect of providing a fire-related abnormal operation procedure that reflects the operator's measures in consideration of the fire impact of each fire zone according to the fire safety stop analysis result including multiple malfunctions.

In addition, the present invention is based on a fire-related abnormal operation procedure that reflects the operator's measures in consideration of the fire impact of each fire zone according to the result of fire safety stop analysis including multiple malfunctions, and By providing the operator's action notification information for fire safety stop devices reflecting multiple malfunctions to the operator's terminal, the operator does not have to search for abnormal operation procedures related to fire one by one, and it has the effect of not having to memorize it.

That is, the present invention can quickly respond to a nuclear power plant fire by providing information on the operator's action on the fire-producing area and fire safety stop devices for the fire-producing fire area to the operator when a fire is detected, thereby preventing the spread of a large fire. It has the effect of making the nuclear power plant more secure.

In addition, since the present invention can verify the actions of the operator and correct the actions of the wrong operator due to this, there is an effect of more safely maintaining the nuclear power plant.

1 is a diagram showing the configuration of an operator action management system of a fire safety stop device in case of a fire of a nuclear power plant according to the present invention.
2 is a view showing the configuration of a fire operator action management unit of the operator action management system of a fire safety stop device in case of a fire of a nuclear power plant according to the present invention.
3 is a view for explaining the concept of operator action management of a fire safety stop device in case of a fire according to an embodiment of the present invention.
4 is a flowchart illustrating a method for managing an operator's action of a fire safety stop device in case of a fire of a nuclear power plant according to the present invention.

Hereinafter, with reference to the accompanying drawings, the configuration and operation of the operator action management system for the safety stop device in the event of a nuclear power plant fire according to the present invention will be described in detail, and a method for managing the operator action of the fire safety stop device in the event of a fire in the system will be described. .

1 is a view showing the configuration of an operator action management system of a fire safety stop device in case of a fire of a nuclear power plant according to the present invention.

Referring to FIG. 1, reference numeral 1 in FIG. 1 denotes a building in which a fire should not occur in a nuclear power plant, and the building 1 includes a plurality of fire zones (2-1, 2, 3, ..., n; hereinafter referred to as 2). The building 1 may be the entire area of a nuclear power plant including a power plant, or as shown in FIG. 1, it may be a major building in which a fire should not particularly occur in a nuclear power plant.

Each fire zone 2 is provided with at least one fire safety stopping device according to the present invention. These fire safety stop devices may be divided into electrically connected devices and devices that must be manually operated by the driver.

The above building (1) represents an arbitrary building that can affect the safety stop in case of fire, and the fire zone (2) is a fire-resistant structure in which the whole or part of the building is divided into other areas and fire-resistant structures in order to prevent the spread of fire. Indicates that. The fire zone (2) means a part of the building (1).

In addition, the fire safety shutdown system and device refers to a system and device that performs a function necessary to reach and maintain a safe shutdown state after a fire occurs.

In the event of a fire, the operator action management system of the fire safety stop device according to the present invention includes a fire detection unit 200, a device operation detection unit 300, and a fire operator action management unit 400, and according to the embodiment, the remote monitoring network system 100 ) May be included.

The reactor remote monitoring network system 100, the fire detection unit 200, the device operation detection unit 300, and the fire operator action management unit 400 are configured to be connected through a wired/wireless data communication network (not shown) to perform mutual data communication. It would be desirable to be.

The wired/wireless data communication network may be a data communication network in which one or more of an Internet network including Wi-Fi and a local network, a mobile communication network such as 3G, 4G, 5G, a WiBro network, and a power line network are combined. There will be.

The fire operator action management unit 400 may be configured to perform data communication with the operator terminal unit 500 through the wired/wireless data communication network.

The reactor remote monitoring network system 100 is a system that monitors various operation variables of a nuclear power plant, and may monitor and generate operation variable information including system alarm messages. The alarm message may include at least one or more of information related to an alarm target device, a function, a function location, a function type, and a failure mode. For example, the failure modes of certain equipment of a particular generator can be high pressure/low pressure warning, steam generator low/high water level, reactor coolant flow abnormality alarm, door open alarm, high and low temperature alarm, voltage/current alarm, fuel low alarm, It could contain codes related to various causes of failure, such as bearing wear alarms, turbine overspeed alarms, etc.

The fire detection unit 200 monitors whether a fire occurs in the fire area 2 by providing a fire detection sensor for each fire area 2 of the building 1 of the nuclear power plant, and when a fire is detected, the fire area where a fire is detected ( 2) and transmits the fire detection information including the fire prevention area information of the identified fire prevention area 2 to the fire operator action management unit 400.

The device operation detection unit 300 monitors the operation state of the fire safety stop device electrically connected among the fire safety stop devices configured in the fire zone 2, collects operation state information for each fire safety stop device, and the operation state Fire safety stop device information including information and identification information (location information) of the fire protection area 2 in which the fire safety stop device is located is provided to the fire operator action management unit 400.

The fire operator action management unit 400 monitors the occurrence of fire according to the reception of fire detection information from the fire detection unit 200.

When a fire is detected, the fire operator action management unit 400 transfers operator action information for one or more fire safety stop devices including multiple malfunction fire safety stop devices for each fire zone to the operator terminal unit 500 according to a previously stored stop-related procedure. And, by analyzing the operation state information of the fire safety stop device and the multiple malfunction fire safety stop device in the fire zone 2 where the fire occurred through the device operation detection unit 300, the operator's action in response to the operator action information is If the operator's actions are inappropriate by judging whether or not the actions are being taken, the operator's fire safety stop due to a fire is retransmitted to the operator's terminal unit 500 by retransmitting the operator's action information for the inappropriate fire safety stop device. Manage device actions.

When the building is defined to include the entire area of the nuclear power plant, the fire detection unit 200 will be configured to monitor whether a fire has occurred in the entire area of the nuclear power plant.

The fire operator action management unit 400 monitors whether a fire occurs in the entire area of the nuclear power plant through the fire detection unit 200, and when a fire occurs, the operator measures information according to the operation status of the nuclear reactor through the remote reactor monitoring network system 100. It will be provided to the terminal unit 500.

In addition, the fire operator action management unit 400 will determine suitability by monitoring the operator's actions accordingly.

The driver terminal unit 500 may be a mobile terminal such as a smartphone, a smart pad, or a dedicated terminal capable of wireless communication, or may be a computer terminal such as a personal computer, a desktop computer, and a notebook computer. It would be desirable to be a mobile terminal in order to be able to input the mobility and operator check list and transmit the information on the operator performance check list accordingly to the fire operator action management unit 400.

2 is a view showing the configuration of a fire operator action management unit of the operator action management system of a fire safety stop device in case of a fire of a nuclear power plant according to the present invention.

Referring to FIG. 2, the fire operator action management unit 400 includes a storage unit 410 and a management control module 420. The fire operator action management unit 400 is provided with a communication means, but since it is a conventional technology, its configuration and operation will not be described.

The storage unit 410 is a program area that stores a control program for controlling the overall operation of the fire operator action management unit 400, a temporary area that temporarily stores data generated during the execution of the control program, and is generated during execution of the control program. It includes a data area for semi-permanently storing data and data necessary to execute a control program. In the data area, an operator action DB 411, a fault tree DB 412, and an operator action history DB 413 may be configured according to the present invention.

The operator's action DB (411) is based on the procedures related to the shutdown of the nuclear power plant, in the event of a fire, information on the fire area for the fire area (2) of the entire building (1), and at least one fire safety stop configured in the fire area (2). It stores fire safety stop device information for devices, and information on actions taken by the operator in case of a fire in the fire zone (2).

The fault tree DB 412 stores the fault tree for the fire safety stop device that causes multiple malfunctions in the event of a failure of the fire safety stop device configured in the fire zone 2.

The operator's action details DB 413 stores operator action information provided to the operator's terminal unit 500 and the operator's action details including operation state information and suitability information of the fire safety stop device reflecting the operator's actions accordingly.

The management control module 420 includes an information generation unit 430, a fire monitoring unit 440, an information collection unit 450, a fire action item generation unit 460, a fire action item provision unit 470, and operator action information. Controls the overall operation of the fire operator action management unit 400 including the collection unit 480 and the operator action suitability determination unit 490.

The information generation unit 430 provides information setting means for creating and modifying procedures related to the shutdown of a nuclear power plant and actions taken by an operator in the event of a fire to the connected manager terminal unit (not shown), and constitutes a stop related procedure accordingly. Receive information on factors to be carried out, and operator actions in case of fire, and write down procedures and actions taken by the operator and store them in the operator action DB (411), or update the stop-related procedures and actions taken by the operator action DB (411). do.

The information generation unit 430 generates a selectable stop procedure according to the input stop-related procedure stop, priority, and emergency procedure information. The stop procedure at this time is for the control of the equipment of the entire nuclear power plant, and the target equipment for the stop procedure includes both devices that are fire safety stop devices and devices that do not.

The information generation unit 430 includes a step of generating a large classification classification, as shown in Table 2, by integrating related or overlapping items during the stop procedure, and generating a classification by matching actions taken in case of fire for each procedure. .

However, among the measures taken in case of fire by each procedure as shown in Table 1 below, there are cases where measures that do not correspond to fire safety stop devices are included. The fire safety stop device is selected by fire risk analysis, and the fire safety stop device is a sound configuration because it conducts analysis through related circuits and cables to derive and receive feedback on the effect of each fire zone. Devices that do not have such soundness are not secured, so there is a problem that reliability in case of fire cannot be guaranteed.

Accordingly, the information generation unit 430 checks through the fire safety stopping device DB (not shown) whether the corresponding action is for a device selected as a fire safety stopping device among the measures shown in Table 2 matched in case of fire, Measures If the target device is found to be not a fire safety stopping device, whether there is another fire safety stopping device associated with the device, or stored in a replacement action DB (not shown), replacing the device to another fire safety stopping device. And generating by matching one or more measures for.

This information generation unit 430 does not allow individual measures to be performed on all devices, but is connected to a fire safety stopping device DB (not shown), classifying devices into fire safety stopping devices and non-fire safety stopping devices, and circuit configuration and There is an effect that measures can be made mainly on fire safety stop devices that have secured soundness due to the cable connection. To this end, the devices are classified and stored in the fire safety stopping device DB (not shown), and the alternative measures DB (not shown) preferably lists and stores the measures that can be replaced by the measures of a plurality of fire safety stopping devices. To be there.

The above stop-related procedures can be stop, priority, emergency procedures, etc., and are prepared by reviewing the results of fire risk analysis including MSO and safety stop analysis, and a fault tree corresponding to the measures taken in case of fire. The faulty tree is stored in the faulty tree DB (412).

The measures taken by the operator may be determined by reflecting the analysis of the cable path of the affected devices for each fire zone, the evaluation of multi-series isolation requirements, and the evaluation of the impact of safety stop for each fire zone.

The measures taken by the operator may be expressed as in Tables 1 and 2 below. Table 1 shows the measures taken by the operator according to the stop procedure according to an embodiment, Table 2 shows the measures taken by the operator in case of a fire, Table 3 shows an example of fire-affecting devices for each fire zone, and Table 4 shows fire prevention. It shows the measures taken by the operator for fire safety stop devices by region.

The fire monitoring unit 440 monitors whether a fire occurs in each fire area through the fire detection unit 200, and when a fire occurs, the fire detection unit 200 obtains and outputs information about the fire area in which a fire has occurred.

When the fire monitoring unit 440 deduces the fire prevention area, measures for the fire prevention area are output from the information generation unit 430 and input to the fire control information generation unit 460. The information generation unit 430 determines the fire area received from the fire monitoring unit 440, and generates, selects, and outputs a stop procedure for the corresponding fire area. The device subject to the stopping procedure at this time is compared with the fire safety stopping device DB (not shown), and if it is recognized as a stored fire safety stopping device, it is forwarded to the fire action item generation unit 460 to proceed with follow-up measures. , If a device other than a fire safety stop device is included as an object of action, an alternative action corresponding to the corresponding fire zone is extracted from the replacement action DB (not shown) and transmitted to the fire action item generating unit 460. If there is no appropriate countermeasure, the information is transmitted to the fire action item generation unit 460 along with the stop procedure information.

The information collection unit 450 includes a reactor operation information collection unit 451 that collects operation variable information from the reactor remote monitoring network system 100 and the device operation detection unit 300 from the fire safety stop device and fault tree in the fire area of the building. A fire safety stop device information collection unit 452 that collects fire safety stop device information including operation state information and fire zone information of the fire safety stop device of the fault tree for the fire safety stop device with reference to the DB 412 Includes.

When a fire is detected in the nuclear power plant through the fire monitoring unit 460, the fire action item generation unit 460 extracts information about the operator's action information for the fire safety stop device in the fire prevention area from the operator action DB 411, and , Fire safety stop device that may cause multiple malfunctions for the fire safety stop device by referring to the fault tree DB 412 and by referring to the fire safety stop device action input from the information generation unit 430 or alternative measures. After extracting the information about the operator's action information, the operator's action information is created. Therefore, it has the effect of first generating information on the operator's action that replaces the measures for other devices other than the fire safety stop device and inducing it to be applied first, and taking other measures as the next best option after determining its suitability.

Before generating the operator action information, the fire response generation unit 460 analyzes the fire safety stop device information of the fire safety stop device in the fire zone (2) where the fire occurred and the fire safety stop device in the faulty tree to ensure fire safety. It may be configured to only generate a fire alarm without providing operator action information when the stationary device is in normal operation.

The fire measures provision unit 470 provides the operator action information to the operator terminal unit 500 used by the previously registered operator.

The driver action performance information collection unit 480 transmits the driver action check list information received from the driver's driver terminal unit 500 and the driver action information for the driver check list included in the driver action information, and then the information collection unit. Collects operator action information including the fire safety stop device information of the fire safety stop device included in the driver action information collected through (450).

The operator's action suitability determination unit 490 compares the collected operator action information with the operator's action information to determine whether the operator's actions have been appropriately performed, and if the operator's actions are inappropriate, the operator measures the unsuitable fire safety stop device. The information is retransmitted to the driver terminal unit 500.

In addition, the suitability for alternative measures through fire stabilization devices is also determined, allowing the operator to determine whether the measures are appropriate or whether additional measures should be reconfirmed and taken.

3 is a view for explaining the concept of operator action management of a fire safety stop device in case of a fire according to an embodiment of the present invention, and describes an operator action method in the event of a failure of the charge pump PP01 in a specific fire area 2 It is a drawing to do.

Referring to FIG. 3, when a fire occurs in a specific fire zone (2), or even if a fire does not occur, when a failure occurs in the collected fire safety stop device, the charge pump (PP01), the operator measures as shown in Table 5 below. The information will be transmitted to the driver terminal unit 500.

At this time, the operator may process the operator's actions while traveling between the site and the main control room, or the operator of the site and the operator of the main control room may be configured to handle each operator's actions. In the latter case, the operator action information will have to be transmitted to the driver terminal unit 500 of each of the two drivers.

The operator terminal unit 500 checks the boxes of the respective operator action checklists, and when information such as execution date, performer, and verifier is input, the inputted information is transferred to the fire operator action management unit 400 as operator performance checklist information. Will send.

In addition, although the check list of Table 5 is configured to perform only a check in the check box, detailed information for each action item may be input, so that more specific operator performance check list information can be obtained.

As shown in Table 5, if the operator performs an operator action on the charge pump PP02 after checking the failure of the charge pump PP01, the first motor valve 30 and the second motor valve 40 by the charge pump PP02. , By generating a flow rate flow 21 through one or more of the manual valve 50 and the manual valve 60, the filling water, etc. may be provided to the reactor coolant system (FT-007) (2-7).

4 is a flowchart illustrating a method for managing an operator's action of a fire safety stop device in the event of a fire at a nuclear power plant according to the present invention.

Referring to FIG. 4, first, when the system is operated, the management control module 420 starts to monitor which fire zone 2 through the fire detection unit 200 (S111), and the fire detection unit 200 It is determined whether a fire is detected by checking whether the fire detection information input from) is input (S113).

When a fire is detected, the management control module 420 analyzes the prevention area information included in the received fire detection information to identify the fire prevention area 2 in which the fire has occurred (S115).

When the fire zone 2 is identified, the management control module 420 searches for actions taken by the operator for the identified fire zone (S117), and determines whether there are actions taken by the operator (S119).

As a result of the determination, if there are no measures taken by the operator, it is determined that the fire abnormal operation procedure is not applied and ends (S125).

If there is an operator's measures for the fire safety stop device in the fire zone 2 and the fire safety stop device in the faulty tree, the management control module 420 is the fire safety stop device in the fire zone 2 and the fire of the faulty tree. The operation state information of the system equipment including the safety stop device is collected from any one of the reactor remote monitoring network system 100 and the device operation detection unit 300 (S121), and it is determined whether there is an abnormality in the system device (S123).

The management control module 420 does not apply the fire abnormal operation procedure if there is no abnormality in the system equipment (S125), and if there is an abnormality in the system equipment, the operator measures the corresponding operator measures for the abnormal system equipment and fire safety stop equipment. After the driver action information is generated by loading from the action DB 411 (S127), it is transmitted to the driver terminal unit 500 of the driver set in advance (S129).

After transmitting the operator action information, the management control module 420 monitors whether the operator performance checklist information for the operator action information is received from the operator terminal unit 500 (S131).

When the operator performance checklist information is received, the management control module 420 compares the received operator performance checklist information with the operator action information to determine whether the operator action information has been performed (S133).

As a result of the determination, if the action is not taken as it is, the management control module 420 retransmits the action information of the operator for the action of the operator that has not been performed as it is or has been incorrectly performed (S135).

On the other hand, if the operator has taken the action according to the operator's action information, the management control module 420 is the fire safety stop device and the fire safety stop device of the fire zone 2 of the operator action information collected through the device operation detection unit 300. The fire safety stop devices of the faulty tree of the system, that is, the fire safety stop device information of the system device is checked again (S137), and it is determined whether the system device is in a normal state or within a normal range (S139).

If it is determined that it is not normal, the management control module 420 requests a re-inspection of the system device (S141), then rechecks the system device status, and if it is normal, ends.

During the above process, if the operator's action (S117) searched for the fire zone (2) where the fire occurred is an alternative action, receive the checklist information accordingly and judge the performance, and as a result of the execution, information on the fire safety stop device It further includes a process of determining whether is a normal state or a normal range, and if it is not normal, the management control module 420 provides the operator with reference to the subordinated replacement action or the original action input from the information generation unit 430 It is preferable to further include a repeating procedure.

Meanwhile, it is common knowledge in the art that the present invention is not limited to the above-described typical preferred embodiments, but can be implemented in various ways without departing from the gist of the present invention. Those who have the will be able to understand it easily. If the implementation by such improvement, change, substitution or addition falls within the scope of the following appended claims, the technical idea should also be regarded as belonging to the present invention.

1: Building 2-1,2,3,...: Fire zone
100: reactor remote monitoring system 200: fire detection unit
300: device operation detection unit 400: fire operator action management unit
410: storage unit 411: operator action DB
412: fault tree DB 413: operator's action history DB
420: management control module 430: information generation unit
440: fire monitoring unit 450: information collection unit
451: reactor operation information collection unit 452: fire safety stop device information collection unit
460: Fire measures generation unit 470: Fire measures provision unit
480: operator action performance information collection unit 490: operator action suitability determination unit
500: operator terminal

Claims (5)

A fire detection unit that monitors whether or not a fire occurs for each of a plurality of fire prevention areas classified in a building within a nuclear power plant, and outputs fire detection information including information about the fire area where the fire is detected when a fire is detected;
It is connected to a fire safety stop device that can be electrically connected among the fire safety stop devices installed in the fire area, detects the operation state of the connected fire safety stop device, and includes information on the operation status and fire area information of the installed fire area. A device operation detection unit that outputs fire safety stop device information; And
When a fire is detected due to the reception of fire detection information from the fire detection unit, information about the operator's actions for the fire safety stop device and the device operation status are detected for each fire zone according to the previously stored stop-related procedures, and if a fault tree is established, the corresponding operator Provides action information to the operator's terminal unit, determines whether the operator's action corresponding to the operator action information is being taken through the device operation detection unit, and determines the suitability of the action to determine if the operator's action is inappropriate. Including a fire operator action management unit that retransmits operator action information for the fire safety stop device to the operator terminal unit to manage the action of the operator's fire safety stop device in response to a fire,
The fire operator measures management unit,
Based on the procedure for stopping the nuclear power plant, in the event of a fire, an operator action DB that stores information about the operator's actions for the fire safety stop devices organized by the above fire zones, and a fault tree that stores the tree of failures taking into account multiple malfunctions for each fire safety stop device. DB, the operator's action information provided to the operator's terminal, and the operation status information of the fire safety stop device reflecting the operator's actions accordingly, and the operator's action details DB that stores the operator's action details including suitability information, and fire safety of the target device of the stop procedure. A storage unit that includes a device corresponding to a stationary device, a fire safety stopping device DB that is classified and stored as devices that do not correspond to this, and an alternative action DB that lists and stores measures that can be replaced by measures of a plurality of fire safety stopping devices. ; And
When a fire is detected according to the reception of fire detection information from the fire detection unit, the operator action information is extracted from the operator's action DB for the fire safety stop device in the fire zone where the fire occurred,
Among the extracted measures, refer to the fault tree DB to check whether malfunction or inoperability of the device occurs due to a fire in the corresponding fire zone, and check the fault tree due to malfunction and inoperability of the fire safety stop device. If this is established, the necessary operator action information is extracted accordingly, and then the driver action information including the operator action information is generated and provided to the driver's terminal unit,
The device operation detection unit determines whether the operator's action corresponding to the operator's action information is appropriately performed, and if the operator's action is inappropriate, the operator's action information for the unsuitable fire safety stop device is retransmitted to the operator's terminal unit, resulting in a fire. It includes a management control module that manages the action of the fire safety stop device of the operator,
The management control module,
Provides information setting means for preparing and modifying the procedure for stopping the nuclear power plant and the operator's actions in the event of a fire to the connected manager's terminal, and inputs information on the elements constituting the procedures related to the stop, and information on actions taken by the operator in the event of a fire. Receive and write a stop-related procedure and operator action information and store it in the operator action DB, or update the stop-related procedure and operator action items in the operator action DB, and select according to the stop, priority, and emergency procedure information of the input stop-related procedure. Including the steps of creating possible stop procedures, classifying and generating stop procedures into major categories by integrating related or overlapping items among the stop procedures, and generating classification by matching actions taken in case of fire for each procedure, and matching in case of fire Among the measures taken, the step of confirming through the fire safety stopping device DB whether the corresponding measure is for a device selected as a fire safety stopping device, and if it is confirmed that the target device is not a fire safety stopping device, Performing individual measures for all devices, including the step of creating by matching one or more measures for other fire safety stopping devices by replacing the corresponding devices stored in the associated other fire safety stopping devices or by replacing the corresponding devices stored in the replacement action DB. Instead, it is connected to the fire safety stop device DB, so that the device is classified into fire safety stop devices and non-fire safety stop devices, so that measures can be performed mainly on fire safety stop devices that have secured soundness due to the circuit configuration and cable connection. An information generation unit;
A fire monitoring unit that monitors whether fire detection information is received from the fire detection unit and monitors whether a fire occurs in an arson area of the building;
The reactor operation information collection unit that collects operation variable information from the reactor remote monitoring network system and the fire safety stop device in the fire prevention area of the building from the device operation detection unit and the fire safety stop of the tree of the fault tree for the fire safety stop device by referring to the DB of the fault tree An information collection unit including a fire safety stop device information collection unit that collects fire safety stop device information including operation state information and fire prevention area information of the device;
When a fire is detected in the building through the fire monitoring unit, the operator's action information is extracted from the operator's action DB for the fire safety stop device in the fire zone, and the faulty tree DB is referred to as a result of a fire in the corresponding fire zone. Check whether a malfunction or inoperability of the device occurs through the device operation detection unit, and if a tree of failure is established due to the malfunction or inoperability of the fire safety stop device, necessary measures for the operator are extracted accordingly, and then the measures for the operator are taken. Generates operator action information including information, but before generating operator action information, fire safety stop by analyzing the fire safety stop device information of the fire safety stop device in the fire zone where the fire occurred and the fire safety stop device in the faulty tree When the operation state of the device is normal, it does not provide operator action information and only generates a fire alarm;
A fire measures provision unit for transmitting the operator action information to the operator terminal unit;
Fire safety stop included in the driver action information collected through the information collection unit after transmission of the driver performance check list information received from the driver's terminal unit and the driver action information for the driver check list included in the driver action information An operator action performance information collection unit that collects operator action action information including information on a fire safety stop device of the device; And
The operator who compares the collected operator action information with the operator action information to determine whether the operator's actions have been properly taken, and if the operator's actions are inappropriate, retransmits the operator's action information for the unsuitable fire safety stop device to the operator's terminal unit. Including the suitability determination section
The information generation unit determines the fire area received from the fire monitoring unit, generates, selects, and outputs a stop procedure for the corresponding fire area, and compares the device subject to the stop procedure at this time with the fire safety stop device DB, If it is recognized that it is about the stored fire safety stop device, it is forwarded to the fire action item generation unit for follow-up measures. If devices other than fire safety stop devices are included as targets for action, from the alternative action DB, to the relevant fire zone. Extracts the corresponding alternative measures and transmits them to the fire measures generation unit, and if there is no appropriate countermeasure, the information along with the stop procedure information is transmitted to the fire measures generation unit,
If it is determined that the operator has taken the action according to the operator's action information, the management control module includes the fire safety stop device in the fire zone of the operator action information collected through the device operation detection unit and the fire safety stop of the fault tree of the fire safety stop device. The device information is checked again to determine whether the device is in a normal state or within the normal range, and if it is determined that it is not normal, the management control module requests a recheck of the device, then rechecks the device state, and if it is normal, terminates. , If the operator's actions searched for the fire zone where the fire occurred is an alternative action, the information on the checklist is received and determined accordingly, and as a result of the execution, it is determined whether the information on the fire safety stop device is in a normal state or within a normal range. Therefore, if it is not normal, the management control module refers to the subordinated replacement or original action input from the information generation unit, and provides it to the operator and repeats the operator action management system for the fire safety stop device in the event of a nuclear power plant fire. . delete delete delete delete

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