CN114203007B - Bar code card fault simulation system and fault investigation system - Google Patents
Bar code card fault simulation system and fault investigation system Download PDFInfo
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- CN114203007B CN114203007B CN202111519750.6A CN202111519750A CN114203007B CN 114203007 B CN114203007 B CN 114203007B CN 202111519750 A CN202111519750 A CN 202111519750A CN 114203007 B CN114203007 B CN 114203007B
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- 238000004088 simulation Methods 0.000 title claims abstract description 93
- 238000011835 investigation Methods 0.000 title abstract description 6
- 230000005855 radiation Effects 0.000 claims description 50
- 238000013024 troubleshooting Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention relates to the technical field of instrument control maintenance, in particular to a bar code card fault simulation system and a fault investigation system. A bar position code card fault simulation system comprises code card fault simulation units which are arranged in one-to-one correspondence with actual bar position code cards, data collectors I which are connected with the code card fault simulation units in one-to-one correspondence, and data display units I which are connected with all the data collectors I; the code card fault simulation unit comprises a code card simulation piece, a first state control piece which is connected in series with the code card simulation piece and used for controlling the code card simulation piece to enter a circuit breaking state, and a second state control piece which is connected in parallel with the code card simulation piece and used for controlling the code card simulation piece to enter a short circuit state. The bar position code card fault simulation system can simulate the fault situation of the bar position code card, and is convenient for a worker to determine the relation between the working state of the bar position code card and the state data of the bar position code card.
Description
Technical Field
The invention relates to the technical field of instrument control maintenance, in particular to a bar code card fault simulation system and a fault investigation system.
Background
The AP1000 is one of the most advanced third generation nuclear power technologies in the world, and a digital technology is adopted in a meter control system. The digital rod position indication system is one of the third-generation nuclear power digital important instrument control systems, and the main function of the digital rod position indication system is to monitor and indicate the position of a control rod in a reactor core. The digital rod position indicating system detects the position of the control rod in the reactor core through a non-contact electromagnetic induction technology, and then the discrete rod position information is converted into a Gray code data format through a rod position coding card for data transmission. In order to reduce the number of used penetrating members, the rod position coding cards of the AP1000 nuclear power technology are arranged in a containment factory building, 69 rod position coding cards are arranged in 5 layers in one cabinet, 138 coding cards are arranged in two cabinets of one unit, and the number of the cards is large, so that the cables are dense, the space is small, and the rod position coding cards are difficult to test and maintain. Particularly, under the operation working condition of a power plant, if the rod position coding card is subjected to fault investigation, the working time is long, the working efficiency is low, the rod position coding card mounting position is located in an irradiation area, and the long-time operation can bring great hidden trouble to personnel.
Disclosure of Invention
Aiming at the problems existing in the prior art, the invention provides a rod position coding card fault simulation system and a fault troubleshooting system, which can simulate various faults of the rod position coding card, thereby facilitating a worker to quickly find the rod position coding card with faults, further improving the overhaul efficiency of the rod position coding card and reducing the radiation risk of the worker.
The technical scheme adopted for solving the technical problems is as follows: a bar position code card fault simulation system comprises code card fault simulation units which are arranged in one-to-one correspondence with actual bar position code cards, data collectors I which are connected with the code card fault simulation units in one-to-one correspondence, and data display units I which are connected with all the data collectors I;
the code card fault simulation unit comprises a code card simulation piece, a first state control piece connected in series with the code card simulation piece and used for controlling the code card simulation piece to enter a circuit breaking state, and a second state control piece connected in parallel with the code card simulation piece and used for controlling the code card simulation piece to enter a short circuit state;
the data collector is used for collecting state data of the code card simulation piece;
the data display unit is used for displaying the state data of all the coded card simulation pieces.
Preferably, the code card analog piece is one of a resistor, a capacitor or a diode.
Preferably, the first state control member and the second state control member are both control switches.
Preferably, each of the code card fault simulation units is provided with a switch controller connected with the first state control member and the second state control member, and all the switch controllers are mounted on the same switch control board.
The system comprises a bar position code card fault detection system, a bar position code card fault simulation system, a second data acquisition unit and a second data display unit, wherein the second data acquisition unit is connected with the bar position code card in one-to-one correspondence, and the second data display unit is connected with all the second data acquisition units;
the second data collector is used for collecting the state data of the bar bit coding card;
the second data display unit is used for displaying the state data of the bar bit coded card;
and the code card fault simulation unit is controlled to enable the state data of the code card simulation piece displayed by the first data display unit to be the same as the state data of the rod bit code card displayed by the second data display unit, so that the fault position and the fault reason of the rod bit code card are determined.
Preferably, the data collector comprises a first plate body, a first circuit element arranged on the first plate body, a second circuit element arranged on the second plate body and a radiation-proof cover; the second board body is connected with the first board body, and then the first circuit element is communicated with the second circuit element to form a working circuit of a second data acquisition unit; the radiation shield is disposed on the second plate and connected to the first plate.
Preferably, the radiation shield includes a shield cavity for receiving the second plate and the second circuit element, the shield cavity being spaced from the outer surface of the radiation shield by a distance of 2.5 to 3.5 cm.
Preferably, the second plate body is provided with a plugging rod, and the first plate body is provided with a plugging hole in matched connection with the plugging rod.
Preferably, the length of the plugging rod is at least 2 cm.
Preferably, the radiation shield includes a base and a top shield; the base is fixedly connected with the first plate body and provided with a connecting groove, and the top cover is provided with a clamping block which is matched and connected with the connecting groove; the fixture block is provided with a connecting hole, and the base is provided with a butt joint hole which is matched and connected with the connecting hole through a fastener.
Advantageous effects
Firstly, the bar code card fault simulation system can simulate the fault situation of the bar code card, so that a worker can conveniently determine the relation between the working state of the bar code card and the state data of the bar code card;
secondly, the rod position code card fault checking system can simulate the fault situation of the rod position code card through the rod position code card fault simulation system, so that a worker can conveniently and quickly find the rod position code card with the fault, the overhaul efficiency of the rod position code card is improved, and the radiation risk of the worker is reduced;
thirdly, the second data collector has good radiation resistance, so that the state data of the rod position coding card can be safely and stably collected for a long time.
Drawings
FIG. 1 is a circuit diagram illustrating a first embodiment of a fault simulation unit for a code card according to the present invention;
FIG. 2 is a circuit diagram illustrating a second embodiment of a fault simulation unit for a code card according to the present invention;
FIG. 3 is a circuit diagram illustrating a third embodiment of a fault simulation unit for a code card according to the present invention;
FIG. 4 is a cross-sectional view of a second data collector of the present invention;
FIG. 5 is a schematic view of the structure of the radiation shield of the present invention;
FIG. 6 is a schematic view of the structure of the base of the radiation shield of the present invention;
fig. 7 is a schematic view of the structure of the top cover of the radiation shield of the present invention.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Embodiment one: as shown in fig. 1 to 3, a bar position code card fault simulation system comprises code card fault simulation units which are arranged in one-to-one correspondence with actual bar position code cards, a first data collector which is connected with the code card fault simulation units in one-to-one correspondence, and a first data display unit which is connected with all the first data collectors.
The code card fault simulation unit comprises a code card simulation piece 1, a first state control piece 2 which is connected with the code card simulation piece 1 in series and is used for controlling the code card simulation piece 1 to enter a circuit breaking state, and a second state control piece 3 which is connected with the code card simulation piece 1 in parallel and is used for controlling the code card simulation piece 1 to enter a short circuit state. Firstly, according to the performance parameters of the actual bar position coding card, selecting a coding card simulation piece 1 which is suitable for the coding card simulation piece, wherein the coding card simulation piece 1 can be one of a resistor, a capacitor or a diode. Then, the first state control element 2 and the second state control element 3 are connected with the code card simulation element 1, wherein the first state control element 2 can be a normally closed control switch, and the second state control element 3 can be a normally open control switch. The first state control member 2 is opened to simulate the condition that the code card simulation member 1 (namely, the corresponding bar code card) is opened, and the second state control member 3 is closed to simulate the condition that the code card simulation member 1 (namely, the corresponding bar code card) is short-circuited. Each code card fault simulation unit is provided with a switch controller connected with the first state control piece 2 and the second state control piece 3, all the switch controllers are arranged on the same switch control board, and the setting is convenient for carrying out opening and closing operation on the first state control piece 2 and the second state control piece 3.
The data collector is used for collecting state data of the code card simulation piece 1, wherein the state data can be a current signal value, a voltage signal value and a temperature signal value corresponding to the code card simulation piece 1.
The data display unit is used for displaying the state data of all the coded card simulation pieces 1. The first data display unit may include a display screen on which model parameters, current signal values, voltage signal values, and temperature signal values of the code card analog member 1 are displayed. By means of the model parameters, the staff can determine which code card simulation 1 is the status data. Under the premise of knowing the state (normal state or short circuit state or open circuit state) and the state data (current signal value, voltage signal value and temperature signal value) of the code card simulation member 1, a worker can analyze the corresponding relation between the current signal value, the voltage signal value and the temperature signal value and the state of the code card simulation member 1, so that the worker can successfully deduce the state of the code card simulation member 1 on the premise of only knowing the state data.
Embodiment two: a bar position coding card fault investigation system comprises a bar position coding card fault simulation system, a second data collector and a second data display unit, wherein the second data collector is connected with the bar position coding card in one-to-one correspondence, and the second data display unit is connected with all the second data collectors. The second data collector is used for collecting state data of the rod bit coding card, wherein the state data can be a current signal value, a voltage signal value and a temperature signal value corresponding to the rod bit coding card. The second data display unit is used for displaying the state data of the bar code card, and the second data display unit can comprise a display screen, and model parameters, current signal values, voltage signal values and temperature signal values of the bar code card can be displayed on the display screen.
The bar position coding card fault simulation system comprises coding card fault simulation units which are arranged in one-to-one correspondence with actual bar position coding cards, data collectors I which are connected with the coding card fault simulation units in one-to-one correspondence, and data display units I which are connected with all the data collectors I, as shown in figures 1 to 3. The code card fault simulation unit comprises a code card simulation piece 1, a first state control piece 2 which is connected with the code card simulation piece 1 in series and is used for controlling the code card simulation piece 1 to enter a circuit breaking state, and a second state control piece 3 which is connected with the code card simulation piece 1 in parallel and is used for controlling the code card simulation piece 1 to enter a short circuit state. The data collector is used for collecting state data of the code card simulation piece 1, wherein the state data can be a current signal value, a voltage signal value and a temperature signal value corresponding to the code card simulation piece 1. The data display unit is used for displaying the state data of all the coded card simulation pieces 1. The first data display unit may include a display screen on which model parameters, current signal values, voltage signal values, and temperature signal values of the code card analog member 1 are displayed.
The code card fault simulation unit is controlled to enable the state data of the code card simulation piece 1 displayed by the first data display unit to be identical with the state data of the rod bit code card displayed by the second data display unit, so that the fault position and the fault reason of the rod bit code card are determined.
The fault detection method of the bar code card in the embodiment specifically comprises the following steps: and L1, acquiring the state data of the bar code card through a second data acquisition unit, and displaying the state data of the bar code card through a second data display unit. L2, the staff refers to the state data on the second data display unit, and controls the opening of the first state control piece 2 and the second state control piece 3 in the code card fault simulation unit to enable the state data of the code card simulation piece 1 displayed by the first data display unit to be approximately the same as the state data of the bar bit code card displayed by the second data display unit. And L3, determining the fault position and the fault reason of the corresponding bar code by the opening and closing states of the first state control member 2 and the second state control member 3 in the code card fault simulation unit.
The rod position code card fault checking system provided by the invention can simulate the fault situation of the rod position code card through the rod position code card fault simulation system, so that a worker can conveniently and quickly find the rod position code card with the fault, the overhaul efficiency of the rod position code card is further improved, and the radiation risk of the worker is reduced.
Furthermore, as the second data collector works in the radiation area, after a period of time, the second data collector is damaged (radiation reason), so that the second data collector cannot normally and accurately collect the state data of the rod position coding card. For this purpose, the invention improves the second data collector. Specifically, as shown in fig. 4, the data collector includes a first board 4-1, a first circuit element 4-2 disposed on the first board 4-1, a second board 4-3, a second circuit element 4-4 disposed on the second board 4-3, and a radiation shield 4-5. The second board body 4-3 is connected with the first board body 4-1, and then the first circuit element 4-2 is communicated with the second circuit element 4-4 to form a working circuit of the second data acquisition device. The radiation shield 4-5 is disposed over the second board 4-3 and the second circuit element 4-4 and is connected to the first board 4-1.
In this embodiment, the circuit elements forming the second data collector are divided into the first radiation-resistant circuit element 4-2 and the second radiation-intolerant circuit element 4-4, where the first circuit element 4-2 does not affect the normal use of the second data collector even if it is in a high radiation environment for a long time, and the second circuit element 4-4 is in a radiation environment for a period of time and then is abnormal, so that the second data collector cannot be used normally. Therefore, the radiation shield 4-5 is arranged on the second circuit element 4-4, and the radiation resistance of the second circuit element 4-4 is improved through the radiation shield 4-5, so that the second data collector can be stably used for a long time.
However, if the second circuit element 4-4 is directly disposed on the first board 4-1, the radiation shielding effect of the radiation shield 4-5 on the second circuit element 4-4 is insignificant (because the connection surface of the radiation shield 4-5 to the first board 4-1 is substantially at the same level as the disposition surface of the second circuit element 4-4), unless the radiation shield 4-5 is made very thick, this results in high costs for the radiation shield 4-5 on the one hand and inconvenience for the disposition of the first circuit element 4-2 on the other hand (in the case of a unchanged size of the first board 4-1). For this reason, the second circuit element 4-4 is arranged on the second plate body 4-3, the second plate body 4-3 is staggered with the first plate body 4-1 in the horizontal direction, so that the connection surface of the radiation shield 4-5 and the first plate body 4-1 is staggered with the arrangement surface of the second circuit element 4-4, and further the radiation shield 4-5 can have an effective radiation protection effect on the second circuit element 4-4.
Further, the radiation shield 4-5 of the present invention is made of tungsten. Tungsten, lead and other materials have radiation shielding effect, but on the premise of the same thickness (namely, the same volume of the data collector), the radiation protection performance of the tungsten is obviously higher than that of other materials, so that the radiation protection cover 4-5 is manufactured by adopting tungsten. In addition, the radiation shield 4-5 includes a housing cavity for receiving the second board 4-3 and the second circuit element 4-4, and the housing cavity is spaced from the outer surface of the radiation shield 4-5 by a distance of 2.5 to 3.5 cm, specifically 3 cm. On the premise of comprehensively considering factors such as the volume of the data acquisition device, the radiation protection effect, the manufacturing cost and the like, the radiation protection cover 4-5 with the thickness of 3 cm has optimal cost performance.
Further, the second plate body 4-3 is provided with a plugging rod, and the first plate body 4-1 is provided with a plugging hole in fit connection with the plugging rod. When the second plate body 4-3 is connected with the first plate body 4-1, the plugging rod of the second plate body 4-3 is only required to be inserted into the plugging hole of the first plate body 4-1, so that the assembly is very simple. When the second circuit element 4-4 is damaged (i.e. the second data collector is damaged), the user only needs to detach the original second board 4-3 from the first board 4-1, and then replace the new second board 4-3 and the second circuit element 4-4, without replacing the whole second data collector, thereby improving the resource utilization rate of the second data collector. In addition, the length of the plugging rod is at least 2 cm, so that the second plate body 4-3 penetrates into the cover cavity of the radiation protection cover 4-5 (namely, the connecting surface of the radiation protection cover 4-5 and the first plate body 4-1 is far enough away from the setting surface of the second circuit element 4-4), and therefore, the radiation protection cover 4-5 can generate a very good radiation protection effect on the second circuit element 4-4.
Further, as shown in fig. 5 to 7, the radiation shield 4-5 includes a base 4-51 and a top cover 4-52. The base 4-51 is fixedly connected with the first plate body 4-1 and is provided with a connecting groove 4-51a. The top cover 4-52 is provided with a clamping block 4-52a which is matched and connected with the connecting groove 4-51a. The clamping block 4-52a is provided with a connecting hole 4-52b, and the base 4-51 is provided with a butt joint hole 4-51b which is matched and connected with the connecting hole 4-52b through a fastener. The fastener may be a fastening screw.
Firstly, the bottom of the base 4-51 is welded and fixed with the first plate body 4-1, a circle of connecting grooves 4-51a are formed in the top of the base 4-51, a circle of clamping blocks 4-52a are arranged at the bottom of the top cover 4-52, and after the clamping blocks 4-52a are inserted into the connecting grooves 4-51a, radiation can be prevented from entering the cover cavity from a connecting gap between the base 4-51 and the top cover 4-52, so that the radiation protection performance of the radiation protection cover 4-5 cannot be weakened. Secondly, through the arrangement of the base 4-51 and the top cover 4-52, the radiation shield 4-5 can be detached from the first plate body 4-1, and further maintenance and replacement of the second plate body 4-3 and the second circuit element 4-4 can be realized. Finally, when the top cover 4-52 is connected with the base 4-51, only the clamping block 4-52a of the top cover 4-52 is inserted into the connecting groove 4-51a of the base 4-51, and then the two are connected and fixed by using the fastening screw (reverse operation during disassembly), so that the disassembly and the assembly are very simple.
The above examples are only illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical scheme of the present invention will fall within the protection scope of the present invention without departing from the design concept of the present invention, and the technical content of the present invention is fully described in the claims.
Claims (3)
1. The utility model provides a stick position code card trouble shooting system, includes stick position code card trouble simulation system, its characterized in that:
the bar position coding card fault simulation system comprises coding card fault simulation units which are arranged in one-to-one correspondence with the actual bar position coding cards, data collectors I which are connected with the coding card fault simulation units in one-to-one correspondence, and data display units I which are connected with all the data collectors I;
the code card fault simulation unit comprises a code card simulation piece (1), a first state control piece (2) which is connected in series with the code card simulation piece (1) and is used for controlling the code card simulation piece (1) to enter a broken state, and a second state control piece (3) which is connected in parallel with the code card simulation piece (1) and is used for controlling the code card simulation piece (1) to enter a short circuit state;
the data collector is used for collecting state data of the code card simulation piece (1);
the data display unit is used for displaying the state data of all the coded card simulation pieces (1);
the coding card simulation piece (1) is one of a resistor, a capacitor or a diode;
the first state control piece (2) and the second state control piece (3) are control switches;
each code card fault simulation unit is provided with a switch controller connected with the first state control piece (2) and the second state control piece (3), and all the switch controllers are arranged on the same switch control board;
the bar position coding card fault checking system further comprises a second data collector which is connected with the bar position coding cards in a one-to-one correspondence manner, and a second data display unit which is connected with all the second data collectors;
the second data collector is used for collecting the state data of the bar bit coding card;
the second data display unit is used for displaying the state data of the bar bit coded card;
the code card fault simulation unit is controlled to enable the state data of the code card simulation piece (1) displayed by the first data display unit to be identical with the state data of the bar bit code card displayed by the second data display unit, so that the fault position and the fault reason of the bar bit code card are determined;
the data acquisition device comprises a first plate body (4-1), a first circuit element (4-2) arranged on the first plate body (4-1), a second plate body (4-3), a second circuit element (4-4) arranged on the second plate body (4-3) and a radiation shield (4-5); the second plate body (4-3) is connected with the first plate body (4-1) and then the first circuit element (4-2) is communicated with the second circuit element (4-4) to form a working circuit of a second data acquisition unit; the radiation-proof cover (4-5) is covered on the second plate body (4-3) and the second circuit element (4-4) and is connected with the first plate body (4-1);
the radiation shield (4-5) comprises a shield cavity for accommodating the second plate body (4-3) and the second circuit element (4-4), the distance between the shield cavity and the outer surface of the radiation shield (4-5) being 2.5 to 3.5 cm;
the second plate body (4-3) is provided with a plug rod, and the first plate body (4-1) is provided with a plug hole which is connected with the plug rod in a matching way.
2. The system for troubleshooting a rod-bit coded card of claim 1, wherein: the length of the plug rod is at least 2 cm.
3. The system for troubleshooting a rod-bit coded card of claim 1, wherein: the radiation shield (4-5) comprises a base (4-51) and a top shield (4-52); the base (4-51) is fixedly connected with the first plate body (4-1) and provided with a connecting groove (4-51 a), and the top cover (4-52) is provided with a clamping block (4-52 a) which is matched and connected with the connecting groove (4-51 a); the clamping block (4-52 a) is provided with a connecting hole (4-52 b), and the base (4-51) is provided with a butt joint hole (4-51 b) which is matched and connected with the connecting hole (4-52 b) through a fastener.
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| CN202111519750.6A CN114203007B (en) | 2021-12-14 | 2021-12-14 | Bar code card fault simulation system and fault investigation system |
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| KR101668861B1 (en) * | 2015-11-30 | 2016-10-25 | 주식회사 한빛파워 | Virtual training system of nuclear power plant |
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| CN214375006U (en) * | 2021-01-07 | 2021-10-08 | 山东核电有限公司 | Testing device for rod position detector of nuclear power station |
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