CN210804835U - Nuclear power plant instrument control maintenance skill competition platform based on reactor protection system - Google Patents
Nuclear power plant instrument control maintenance skill competition platform based on reactor protection system Download PDFInfo
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- CN210804835U CN210804835U CN201921438008.0U CN201921438008U CN210804835U CN 210804835 U CN210804835 U CN 210804835U CN 201921438008 U CN201921438008 U CN 201921438008U CN 210804835 U CN210804835 U CN 210804835U
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Abstract
The utility model belongs to the technical field of nuclear power plant's instrument control maintenance skill contest, concretely relates to nuclear power plant's instrument control maintenance skill contest platform based on reactor protection system. The DCS switch is respectively connected with the DCS engineer station, the DCS signal simulation cabinet and the DCS signal processing cabinet, the DCS signal simulation cabinet is respectively connected with the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3, the fault simulation relay control station is respectively connected with the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3, and the examiner station and the examinee station are connected with the fault simulation relay control station through a wireless network. The utility model discloses can realize the comprehensive fault simulation of instrument control system more complicated, furthest simulates the actual scene of overhauing, and then realizes uses such as instrument control maintenance skill training and competition of different levels.
Description
Technical Field
The utility model belongs to the technical field of nuclear power plant's instrument control maintenance skill contest, concretely relates to nuclear power plant's instrument control maintenance skill contest platform based on reactor protection system.
Background
The examination and repair skill competition is one of the most direct and effective means for training, promoting and inspecting instrument control examination and repair skills. In general, instrument control and maintenance skill competition of a nuclear power plant is carried out by using a single device or part, such as instrument verification, pneumatic valve adjustment and the like, the problems of single project, difficulty in simulation of maintenance scenes, inconvenience in setting of fault points, single check point and the like exist, only the maintenance skill of a certain aspect of an examinee can be inspected, and the comprehensive fault analysis and processing capability of an instrument control system of the examinee is difficult to inspect.
Disclosure of Invention
An object of the utility model is to provide a nuclear power plant's instrument control overhauls technical ability competition platform based on reactor protection system through automatic insertion fault point, can realize more complicated instrument control system and synthesize the fault simulation, furthest simulates the actual scene of overhauing, and then realizes uses such as the instrument control of different levels overhauls technical ability training and competition.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a nuclear power plant instrument control maintenance skill competition platform based on a reactor protection system comprises a DCS engineer station, a DCS exchanger, a DCS signal simulation cabinet, a DCS signal processing cabinet, a relay cabinet 1, a relay cabinet 2, a relay cabinet 3, a fault simulation relay control station, an examinee station and an examinee station; the DCS switch is respectively connected with the DCS engineer station, the DCS signal simulation cabinet and the DCS signal processing cabinet, the DCS signal simulation cabinet is respectively connected with the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3, the fault simulation relay control station is respectively connected with the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3, and the examiner station and the examinee station are connected with the fault simulation relay control station through a wireless network.
The DCS switch is respectively connected with the DCS engineer station, the DCS signal simulation cabinet and the DCS signal processing cabinet through optical fibers.
The DCS signal simulation cabinet is connected with the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3 through hard wiring respectively.
The fault simulation relay control station is respectively connected with the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3 through Ethernet twisted-pair lines.
And a plurality of relays, terminal rows and input/output modules are arranged in the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3.
The utility model discloses the beneficial effect who gains does:
a simplified version of reactor protection system is built by adopting the relay and the DCS, and a typical overhaul scene is simulated. The competition is close to the actual work on the spot, and the competition result directly shows the skill level of the actual work on the spot.
The automatic question selecting system realizes paperless examination, reduces the workload of examination preparation and also reduces the waste of paper.
The fault point is automatically set and recovered, examination preparation work is reduced, flexible insertion and withdrawal of the fault point are realized, competition efficiency is improved, and the instrument control complex comprehensive fault simulation function is realized.
Drawings
Fig. 1 is a structural diagram of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in FIG. 1, nuclear power plant instrument control maintenance skill competition platform based on reactor protection system includes DCS engineer station, DCS switch, DCS signal emulation cabinet, DCS signal processing cabinet, relay cabinet 1, relay cabinet 2, relay cabinet 3, fault simulation relay control station, examiner station and examinee station. The DCS switch is respectively connected with the DCS engineer station, the DCS signal simulation cabinet and the DCS signal processing cabinet through optical fibers, and signal transmission of all parts is achieved through communication. The DCS signal simulation cabinet is connected with the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3 through hard wiring respectively. The fault simulation relay control station is respectively connected with the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3 through five types of Ethernet twisted-pair lines. The examiner station and the examinee station are connected with the fault simulation relay control station through a wireless network.
And a plurality of relays, terminal rows and input/output modules are uniformly arranged in the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3.
The emergency shutdown function and the safety injection function of the reactor protection system are taken as objects, and the platform adopts a relay and a DCS to realize corresponding logic functions. Wherein, the instrument sensors participating in the reactor protection emergency shutdown function and the safety injection function, and the field instruments and drivers such as an emergency shutdown object, a shutdown circuit breaker, a safety injection object, a special safety facility and the like are simulated by the DCS cabinet. The instrument threshold comparison and the protection logic processing are respectively realized in a DCS cabinet and a relay cabinet. The DCS cabinet is connected with the DCS engineer station through the network switch, and the DCS engineer station realizes functions of software configuration, signal simulation operation and the like. The evaluation system consists of fault simulation relays distributed in three relay cabinets, a relay control module, a notebook computer and an evaluation software system.
The DCS signal simulation cabinet simulates to generate a field instrument signal and sends the field instrument signal into the DCS signal processing cabinet to be compared with a preset fixed value by a threshold value;
threshold trigger signals generated by threshold comparison are sent to the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3;
the three relay cabinets generate corresponding logic actions according to the threshold trigger signals, and generate a reactor emergency shutdown signal and a special safety facility driving signal;
a shutdown signal and a special safety facility driving signal are sent to a DCS signal simulation cabinet;
the logic action signals received by the DCS signal simulation cabinet are displayed in a graphic picture form at a DCS engineer station;
the DCS engineer station is connected with the DCS signal simulation cabinet and the DCS signal processing cabinet through an optical fiber and a DCS switch, so that the functions of signal simulation control, logic action signal image display and the like are realized;
the examiner station is provided with an examination software system, communicates with the fault simulation relay control station through a wireless network and sends a fault simulation relay control command to the fault simulation relay control station;
the fault simulation relay control station is communicated with the input/output modules in the three relay cabinets by a network cable by adopting a modbus protocol;
after receiving a control command sent by a fault simulation relay control station, the input/output module issues the control command to a relay in a corresponding relay cabinet, so that the fault simulation relay is excited to act, and a fault point insertion function is realized;
the examinee station is provided with an examination software system (client), communicates with the examiner station through a wireless network and sends question selection information to the examiner station.
The fault point insertion function in the step i) is specifically as follows:
the fault simulation is realized by connecting relay contacts for simulating faults in series or in parallel in normal circuits in the three relay cabinets, and the relays for simulating the faults are controlled by an input/output module controlled by an upper computer. All input/output modules and relays used for fault simulation are arranged on the back of the relay cabinet, and normal logic loop equipment is arranged on the front of the relay cabinet. The examinee only needs to contact with the normal logic loop device and does not contact with the device related to fault simulation in the examination process. Thus, the fault simulation device is not visible to the test taker.
There are mainly 4 types of failure points:
the fault point type 1 is a signal short-circuit fault, a fault simulation relay normally-open contact circuit is connected in parallel in a normal control circuit in three relay cabinets, when the fault simulation relay is excited, the fault simulation relay normally-open contact is closed, and the normally-open control circuit which is simulated to be opened controls the circuit to be accidentally closed to have a fault under the condition that no signal command exists.
The fault point type 2 is a circuit indirect line error fault, two normally open contacts of the same fault simulation relay are respectively connected in series in two normal control circuits in three relay cabinets, and after the fault simulation relay is excited, the two normally open contacts of the fault simulation relay are closed to simulate the circuit indirect line error fault of the two normal control circuits.
The fault point type 3 is a relay normally open normally closed contact fault connection fault, a normally open normally closed contact of a pair of fault simulation relays is connected in series at the upstream or the downstream of one relay contact in a normal control loop in three relay cabinets, and after the fault simulation relays are excited, the normally open contact of the fault simulation relays is closed, and the relay normally open normally closed contact fault connection fault in the normal control loop is simulated.
The fault point type 4 is a circuit disconnection fault, a normally closed contact of a fault simulation relay is connected in series in a normal control circuit in three relay cabinets, and after the fault simulation relay is excited, the normally open contact of the fault simulation relay is closed to simulate a short circuit fault of the normal control circuit.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, to adapt to particular situations or materials of the technology, the present invention can be modified in many ways without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. The utility model provides a nuclear power plant instrument control maintenance skill competition platform based on reactor protection system which characterized in that: the system comprises a DCS engineer station, a DCS exchanger, a DCS signal simulation cabinet, a DCS signal processing cabinet, a relay cabinet 1, a relay cabinet 2, a relay cabinet 3, a fault simulation relay control station, an examiner station and an examinee station; the DCS switch is respectively connected with the DCS engineer station, the DCS signal simulation cabinet and the DCS signal processing cabinet, the DCS signal simulation cabinet is respectively connected with the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3, the fault simulation relay control station is respectively connected with the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3, and the examiner station and the examinee station are connected with the fault simulation relay control station through a wireless network.
2. The nuclear power plant instrumentation control maintenance skill competition platform based on the reactor protection system of claim 1, wherein: the DCS switch is respectively connected with the DCS engineer station, the DCS signal simulation cabinet and the DCS signal processing cabinet through optical fibers.
3. The nuclear power plant instrumentation control maintenance skill competition platform based on the reactor protection system of claim 1, wherein: the DCS signal simulation cabinet is connected with the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3 through hard wiring respectively.
4. The nuclear power plant instrumentation control maintenance skill competition platform based on the reactor protection system of claim 1, wherein: the fault simulation relay control station is respectively connected with the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3 through Ethernet twisted-pair lines.
5. The nuclear power plant instrumentation control maintenance skill competition platform based on the reactor protection system of claim 1, wherein: and a plurality of relays, terminal rows and input/output modules are arranged in the relay cabinet 1, the relay cabinet 2 and the relay cabinet 3.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921438008.0U CN210804835U (en) | 2019-08-30 | 2019-08-30 | Nuclear power plant instrument control maintenance skill competition platform based on reactor protection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921438008.0U CN210804835U (en) | 2019-08-30 | 2019-08-30 | Nuclear power plant instrument control maintenance skill competition platform based on reactor protection system |
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| CN210804835U true CN210804835U (en) | 2020-06-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110570708A (en) * | 2019-08-30 | 2019-12-13 | 福建福清核电有限公司 | Nuclear power plant instrument control maintenance skill competition platform based on reactor protection system |
| CN116913155A (en) * | 2023-09-11 | 2023-10-20 | 成都运达科技股份有限公司 | Line fault simulation device |
-
2019
- 2019-08-30 CN CN201921438008.0U patent/CN210804835U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110570708A (en) * | 2019-08-30 | 2019-12-13 | 福建福清核电有限公司 | Nuclear power plant instrument control maintenance skill competition platform based on reactor protection system |
| CN116913155A (en) * | 2023-09-11 | 2023-10-20 | 成都运达科技股份有限公司 | Line fault simulation device |
| CN116913155B (en) * | 2023-09-11 | 2023-12-08 | 成都运达科技股份有限公司 | Line fault simulation device |
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