CN214226184U - Platform for automatically simulating nuclear power reactor protection system accident - Google Patents
Platform for automatically simulating nuclear power reactor protection system accident Download PDFInfo
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- CN214226184U CN214226184U CN202022962994.9U CN202022962994U CN214226184U CN 214226184 U CN214226184 U CN 214226184U CN 202022962994 U CN202022962994 U CN 202022962994U CN 214226184 U CN214226184 U CN 214226184U
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Abstract
The invention relates to the field of nuclear power, in particular to a platform for automatically simulating accidents of a nuclear power reactor protection system. The platform for automatically simulating accidents of the nuclear power reactor protection system comprises: the fault simulation cabinet comprises a fault simulation cabinet body, wherein one side of the fault simulation cabinet body is provided with a loop logic unit, and the other side of the fault simulation cabinet body is provided with a fault initiation unit; the fault triggering unit comprises a plurality of relays, a plurality of switches and a plurality of IO modules; an automatic update status unit; and the digital computer controls the system cabinet. The platform can simulate various accident scenes, is used for skill training and automatic question setting, improves the capability of coping with faults in the protection system, and maximally ensures the safe operation of nuclear power station reaction.
Description
Technical Field
The utility model relates to a nuclear power field especially relates to a platform of automatic simulation nuclear power reactor protection system accident.
Background
A nuclear power reactor protection system is used for ensuring the safe operation of a nuclear power station reactor. The structural design of the nuclear power reactor protection System is closely related to the overall design, safety classification and design of a nuclear Digital computer Control System (DCS) platform of a nuclear power station.
In the event of a design basis accident in a nuclear power plant, the nuclear reactor protection system is used to bring the reactor to a safe shutdown condition.
However, with the development of nuclear power technology, there is a need to improve the capability of coping with various faults of a nuclear power reactor protection system so as to maximally ensure safe operation of a nuclear power plant reactor.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: a platform is provided for automatically simulating nuclear power reactor protection system accidents that can simulate various accident scenarios for skill training and automatic question setting.
The utility model provides a platform of automatic simulation nuclear power reactor protection system accident, include:
the fault simulation cabinet comprises a fault simulation cabinet body, wherein one side of the fault simulation cabinet body is provided with a loop logic unit, and the other side of the fault simulation cabinet body is provided with a fault initiation unit; the fault triggering unit comprises a plurality of relays, a plurality of switches and a plurality of IO modules;
an automatic update status unit;
and the digital computer controls the system cabinet.
Preferably, the method further comprises the following steps:
and the fault simulation relay control station is used for interacting with other external computers and controlling the relay.
Preferably, the method further comprises the following steps: the digital computer controls the system network switch.
Preferably, the method further comprises the following steps: and the initialization unit is connected with each IO module.
Preferably, the initialization unit comprises a mobile storage device.
Preferably, the mobile storage device is a computer, which serves as a testing station.
Preferably, the automatic update status unit comprises a processor, a memory and a communication interface;
the memory stores various arrangements and combinations of the states of the relays and the states of the switches;
and the processor and the communication interface automatically update the state of each relay and the state of each switch within a preset time interval until all the states of all the relays and all the states of all the switches stored in the memory are traversed and arranged and combined.
Preferably, the system further comprises an automatic polling unit, wherein the automatic polling unit is connected with each IO module.
Preferably, the digital computer control system cabinet comprises a first cabinet and a second cabinet, the first cabinet is used for generating simulation signals, the simulation signals comprise field instrument signals, and the field instrument signals are transmitted to the second cabinet through hard wiring to perform threshold value comparison;
the second cabinet generates a threshold trigger signal according to the threshold comparison result, the threshold trigger signal is sent to the fault simulating cabinet body through hard wiring, and the fault simulating cabinet body generates corresponding logic actions according to the threshold trigger signal to generate a reactor emergency shutdown signal and a special safety facility driving signal.
Compared with the prior art, the utility model discloses a platform of automatic simulation nuclear power reactor protection system accident has realized the platform that can automatic simulation nuclear power reactor protection system's various trouble, can simulate various accident scenarios, can be used for technical skill to practice and automatic question, has improved the ability of dealing with protection system and giving well trouble, and the safe operation of nuclear power station reaction is ensured to the maximize.
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FIG. 1 shows a structural view of a platform for automatically simulating an accident in a nuclear reactor protection system;
wherein, 1 is a fault simulation cabinet body; 2 is an automatic update status unit; and 3, a digital computer control system cabinet.
Detailed Description
For further understanding of the present invention, embodiments of the present invention are described below with reference to examples, but it should be understood that these descriptions are only for the purpose of further illustrating the features and advantages of the present invention, and are not intended to limit the present invention.
The utility model discloses well IO module indicates analog-to-digital conversion module.
An embodiment of the utility model discloses a platform of automatic simulation nuclear power reactor protection system accident, see fig. 1, include:
the fault simulation cabinet comprises a fault simulation cabinet body 1, wherein a loop logic unit is arranged on one surface of the fault simulation cabinet body, and a fault initiation unit is arranged on the other surface of the fault simulation cabinet body; the fault triggering unit comprises a plurality of relays, a plurality of switches and a plurality of IO modules;
an automatic update status unit 2;
the digital computer controls the system cabinet 3.
According to the utility model discloses, the fault simulation cabinet body, through the switch makes series connection or parallelly connected in normal return circuit the simulation of trouble is realized to the relay.
For the fault simulation cabinet body, on one hand, because its front sets up corresponding logic equipment, the back sets up and causes logic equipment breaks down: a plurality of relays, a plurality of switches and a plurality of IO modules, can discover: the fault simulating cabinet body enables personnel participating in the training to only see the logic equipment with faults in the fault training process; wherein the switch can be an air switch or other controllable switch;
on the other hand, the IO module is used for receiving information or instructions of various simulation faults;
on the other hand, various simulated faults can be mainly based on electrical faults which are easily found by instrument control personnel in daily work, such as faults of broken lines, wrong lines and the like; the fault simulation cabinet body enables the relays to be connected in series or in parallel in the normal loop through the switch to realize fault simulation, the fault simulation is realized by connecting relay contacts for simulating faults in series or in parallel in the normal loop, and the fault relays are controlled through the IO module.
For example, the following faults are simulated:
1) the external normally open signal is simulated through the externally added bypass switch, and the DCS cabinet is accidentally closed under the condition that no signal is given to the DCS cabinet, namely the external signal bypass fault caused by wrong external wiring of the cabinet occurs;
2) by enabling more switches, a switch combination is formed, and similar to track switching, faults caused by miswiring between two loops are simulated;
3) by starting more switches, a switch combination is formed, and similar to the rail switching, the fault of the logic abnormal action of a loop caused by the normally open and normally closed misconnection of a loop relay is simulated;
4) the purpose of simulating disconnection is achieved by connecting a normally closed contact of a fault relay in series in a loop;
5) by connecting the fault contacts in series outside the incoming terminals, an external signal loss fault is simulated.
According to the utility model discloses, the automatic updating unit for in certain time interval, the state of automatic update every relay and the state of every switch, finish until traversing: all states of all relays, all states of all switches, various permutations, combinations.
Because all the states of all the relays and all the states of all the switches are determined in various arrangements and combinations, the embodiment can automatically update the state of each relay and the state of each switch within various arrangements and combinations until traversal is completed, so that automatic simulation of various faults can be realized, and questions can be automatically made for operators participating in the practice;
therefore, in the preset time interval, considering the time required for switching various faults, it can be understood that the preset time interval is the examination time corresponding to the exercise of each fault by default. The preset time interval may be set to a relatively longer time interval when switching to a specific fault of a complex type than a simple type. Preferably, the time intervals are implemented by respective timers in the platform, and a simple fault corresponds to one specific fault state and a relatively complex fault corresponds to another fault state, and the different states trigger different predetermined time intervals. Due to the various fault conditions corresponding to the states of the respective relays and switches, different time intervals can be triggered completely by means of the respective logic circuits, which may employ various existing logic devices, including logical and, or, non-components, flip-flops, etc.
Preferably, the automatic update status unit comprises a processor, a memory and a communication interface;
the memory stores various arrangements and combinations of the states of the relays and the states of the switches;
and the processor and the communication interface automatically update the state of each relay and the state of each switch within a preset time interval until all the states of all the relays and all the states of all the switches stored in the memory are traversed and arranged and combined.
According to the utility model discloses, digital computer control system rack for be used for the basis automatic update state unit is current to the state of every relay and the state of every switch, generates corresponding simulation signal, and based on right simulation signal's processing, and then through corresponding IO module control corresponding relay and switch.
Therefore, the present embodiment can completely realize automatic simulation and automatic update to traverse various faults through the DCS cabinet on the basis of the fault simulation cabinet and the automatic update state unit, so as to exercise and process various faults of the protection system.
It should be noted that the automatic status updating unit introduced by the present invention is the most important technical contribution, which makes the platform have the capability of automatically proposing questions and traversing all faults, and does not necessarily require human to simulate some faults. In theory, the above-described embodiment does not require external human intervention to automate the simulation process.
Preferably, the platform for automatically simulating an accident of the nuclear power reactor protection system further comprises:
and the fault simulation relay control station is used for interacting with other external computers and controlling the relay.
For this embodiment, this facilitates the ability to simulate a failure to be augmented by other external computers. It will be appreciated that other external computers may be instructed by expert personnel directly to the relay to intervene manually in the fault simulation of the platform. This embodiment further introduces artifacts to enhance the ability to simulate, drill down, compared to the automatic simulation and automatic traversal of the previous embodiment.
More preferably, all fault points will be able to complete the setup for the simulated fault cabinet at once, i.e. one command completes all the corresponding setups, by means of other external computers and the fault simulation relay control station. Naturally, it is also possible to reset some or all fault points automatically/manually by means of commands by means of other external computers and said fault simulation relay control station. This is a specific human factor to enhance the ability to simulate, drill down. It can be appreciated that the command is to energize the relay and/or switch through the IO module.
The fault simulation relay control station is also used for issuing an instruction of the external computer to a corresponding IO module, and the corresponding IO module is used for enabling a corresponding relay to perform excitation action so as to realize artificial insertion of a fault point;
the types of the fault points comprise circuit wiring errors, relay coil faults, relay contact point use errors, circuit disconnection and signal loss.
Preferably, the method further comprises the following steps: the digital computer controls the system network switch. The DCS network switch can be used for communication between a DCS engineer station and a DCS cabinet.
Preferably, the method further comprises the following steps: and the initialization unit is connected with each IO module and used for issuing instructions so as to initialize the plurality of relays and the plurality of switches.
The initialization unit may initialize the plurality of relays and the plurality of switches according to an initial state of a certain relay and switch, or may randomly select one of all permutations and combinations thereof to initialize the plurality of relays and the plurality of switches.
Preferably, the initialization unit comprises a mobile storage device. The mobile storage device is a computer which can be a notebook computer or a desktop computer, and the computer is used as an examination station.
It will be appreciated that the initialization unit may be a cabinet or unit integrated into the platform or may be remote with respect to the cabinets or units.
Preferably, the automatic update status unit comprises a processor, a memory and a communication interface;
the memory stores various arrangements and combinations of the states of the relays and the states of the switches;
and the processor and the communication interface automatically update the state of each relay and the state of each switch within a preset time interval until all the states of all the relays and all the states of all the switches stored in the memory are traversed and arranged and combined.
This embodiment is intended to enable the functionality of the automatically updating state unit from its locally stored information/data.
In combination with the above DCS network switch, DCS engineer station, initialization unit, fault simulation relay control station, other external computers, in theory, any of these or suitable combinations thereof may also be used to store all states of all relays, various permutations and combinations of all states of all switches to enable the function of the automatic update state unit from outside the automatic update state unit.
Preferably, the system further comprises an automatic polling unit, wherein the automatic polling unit is connected with each IO module and is used for automatically polling the state of each relay and the state of each switch.
This is another important technical contribution in the present disclosure that the automated polling unit may further cooperate with the automated update status unit to enable the platform for automatically simulating various faults of a nuclear reactor protection system according to the present disclosure to automatically update and traverse the various simulated faults in an automated polling manner.
Preferably, the digital computer control system cabinet comprises a first cabinet and a second cabinet, the first cabinet is used for generating simulation signals, the simulation signals comprise field instrument signals, and the field instrument signals are transmitted to the second cabinet through hard wiring to perform threshold value comparison.
The second cabinet generates a threshold trigger signal according to the threshold comparison result, the threshold trigger signal is sent to the fault simulating cabinet body through hard wiring, and the fault simulating cabinet body generates corresponding logic actions according to the threshold trigger signal to generate a reactor emergency shutdown signal and a special safety facility driving signal.
For this embodiment, it is intended to define a specific implementation of the DCS cabinet. More preferably, the simulation signal of the first cabinet can be displayed in a graphic screen form at the DCS engineer station, and in this case, the DCS engineer station can be used as an engineer or a device of an engineer, and preferably, the engineer and the engineer each have a dedicated device, and the engineer has a device of the engineer station, and the drill has a test/exercise device. Also, as described in the present invention, the DCS engineer station may include a function of the storage unit.
Preferably, the platform for automatically simulating an accident of the nuclear power reactor protection system further comprises a storage unit for storing an operation of each of the trainers in performing the fault handling. More preferably, the processing time for each fault is also stored.
In another embodiment of the present invention, the substrate is,
the platform for automatically simulating accidents of the nuclear power reactor protection system further comprises a power supply, wherein the power supply is at least used for supplying power to any component needing power in the platform.
In this way, it is possible to compare with standard fault handling operations and give a rating based on the content of their storage. Meanwhile, the processing time of each fault can be counted and graded.
It should be noted that, in the present invention, the units, the cabinet body, and any components or parts implementing the units and the cabinet body can be electrically connected to each other based on the existing circuits and integration technologies, and the communication between the units and the cabinet body does not exclude any wired or wireless connection manner that can be put into practice.
The above description of the embodiments is only intended to help understand the method of the present invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A platform for automatically simulating events in a nuclear reactor protection system, comprising:
the fault simulation cabinet comprises a fault simulation cabinet body (1), wherein a loop logic unit is arranged on one surface of the fault simulation cabinet body, and a fault triggering unit is arranged on the other surface of the fault simulation cabinet body; the fault triggering unit comprises a plurality of relays, a plurality of switches and a plurality of IO modules;
an automatic update status unit (2);
and a digital computer control system cabinet (3).
2. The platform for automatically simulating events of a nuclear power reactor protection system according to claim 1, further comprising:
and the fault simulation relay control station is interacted with an external computer and controls the relay.
3. The platform for automatically simulating events of a nuclear power reactor protection system according to claim 1, further comprising: the digital computer controls the system network switch.
4. The platform for automatically simulating events of a nuclear power reactor protection system according to claim 1, further comprising: and the initialization unit is connected with each IO module.
5. The platform for automatically simulating events of a nuclear power reactor protection system according to claim 4 wherein said initialization unit includes a removable storage device.
6. The platform for automated simulation of nuclear reactor protection system events according to claim 5, wherein said mobile storage device is a computer, said computer serving as a testing station.
7. The platform for automatically simulating events of a nuclear power reactor protection system according to claim 1, wherein said automatically updating status unit includes a processor, a memory, and a communication interface;
the memory stores various arrangements and combinations of the states of the relays and the states of the switches;
and the processor and the communication interface automatically update the state of each relay and the state of each switch within a preset time interval until all the states of all the relays and all the states of all the switches stored in the memory are traversed and arranged and combined.
8. The platform for automated simulation of nuclear power reactor protection system events according to claim 1, further comprising an automated polling unit coupled to each IO module.
9. The platform for automated simulation of nuclear power reactor protection system events according to claim 1, wherein the digital computer control system cabinet (3) includes a first cabinet and a second cabinet, the first cabinet being configured to generate an emulation signal, the emulation signal including field instrumentation signals, and the field instrumentation signals being hard-wired for transmission to the second cabinet for threshold comparison;
the second cabinet generates a threshold trigger signal according to the threshold comparison result, the threshold trigger signal is sent to the fault simulating cabinet body through hard wiring, and the fault simulating cabinet body generates corresponding logic actions according to the threshold trigger signal to generate a reactor emergency shutdown signal and a special safety facility driving signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022962994.9U CN214226184U (en) | 2020-12-10 | 2020-12-10 | Platform for automatically simulating nuclear power reactor protection system accident |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022962994.9U CN214226184U (en) | 2020-12-10 | 2020-12-10 | Platform for automatically simulating nuclear power reactor protection system accident |
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| CN214226184U true CN214226184U (en) | 2021-09-17 |
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