CN117129859B - Static starting device for simulating high-temperature gas cooled reactor emergency diesel generator - Google Patents
Static starting device for simulating high-temperature gas cooled reactor emergency diesel generator Download PDFInfo
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- CN117129859B CN117129859B CN202311083531.7A CN202311083531A CN117129859B CN 117129859 B CN117129859 B CN 117129859B CN 202311083531 A CN202311083531 A CN 202311083531A CN 117129859 B CN117129859 B CN 117129859B
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G01R31/3177—Testing of logic operation, e.g. by logic analysers
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Abstract
The embodiment of the disclosure provides a static starting device for simulating a high-temperature gas cooled reactor emergency diesel generator, which comprises a starting control loop, a voltage frequency qualified signal simulation loop, an emergency bus power-off signal simulation loop and a plurality of rated rotation speed simulation loops, wherein the voltage frequency qualified signal simulation loop, the emergency bus power-off signal simulation loop and the rated rotation speed simulation loops are electrically connected with the starting control loop; and the starting control loop is used for controlling the emergency bus power-off signal simulation loop, the multiple rated rotation speed simulation loops and the voltage frequency qualified signal simulation loop to be sequentially conducted so as to simulate the static starting process of the high-temperature gas cooled reactor emergency diesel generator. The device can simply and accurately simulate the whole static starting process of the emergency diesel generator, and realize the complete verification of the starting logic loop of the emergency diesel generator; meanwhile, by setting the starting control loop, the static starting process of the emergency diesel generator can be monitored, the action condition of the starting logic of the emergency diesel generator can be observed in time, and logic problems can be found conveniently and early.
Description
Technical Field
The embodiment of the disclosure belongs to the technical field of debugging of emergency diesel generators, and particularly relates to a static starting device for simulating a high-temperature gas cooled reactor emergency diesel generator.
Background
The emergency diesel generator set (hereinafter referred to as emergency diesel generation) of the nuclear power plant is an extremely important stand-by power supply system in the plant, and is responsible for supplying power to safety-related or deep defensive loads. The emergency generation of the high-temperature gas cooled reactor adopts a 6PA6LN series diesel engine produced by S.E.M.T.Pielstin company, and the control system is mainly divided into two parts: the analog element with the main relay realizes the safety control function, and the digital element with the main PLC realizes the non-safety control/monitoring function, so as to ensure the reliability and convenience of the control system.
The conventional debugging test of the emergency diesel engine instrument control system is divided into a channel test and a logic function test, and the logic function test verifies the correctness of a certain single-function logic. Because the emergency diesel engine starting process has more conditions and smaller field operation space, and a plurality of people are required to perform condition simulation, the field simulation diesel engine starting process is difficult, and therefore the whole process simulation of the emergency diesel engine starting process is rarely performed in the industry. The existing logic function test can only verify the correctness of a single logic function, and has a logic interface part verification blind area. When the diesel engine is started failure due to the instrument control logic during the first starting of the emergency diesel engine, a plurality of starting conditions may need to be simulated aiming at the investigation of the control logic, the time is long, the operation space is narrow, the false touch probability is high, the fault investigation is difficult, and the debugging period of the emergency diesel engine is greatly influenced.
In order to solve the problems, it is necessary to provide a static starting device of an emergency diesel generator of a simulated high-temperature gas cooled reactor, which has reasonable design and effectively solves the problems.
Disclosure of Invention
The embodiment of the disclosure aims at solving at least one of the technical problems existing in the prior art and provides a static starting device for simulating a high-temperature gas cooled reactor emergency diesel generator.
The embodiment of the disclosure provides a static starting device for simulating a high-temperature gas cooled reactor emergency diesel generator, which comprises a starting control loop, a voltage frequency qualified signal simulation loop, an emergency bus power-off signal simulation loop and a plurality of rated rotation speed simulation loops, wherein the voltage frequency qualified signal simulation loop, the emergency bus power-off signal simulation loop and the rated rotation speed simulation loops are electrically connected with the starting control loop;
and the starting control loop is used for controlling the emergency bus power-off signal simulation loop, the multiple rated rotation speed simulation loops and the voltage frequency qualified signal simulation loop to be sequentially conducted so as to simulate the static starting process of the high-temperature gas cooled reactor emergency diesel generator.
Optionally, the start control loop is connected in series with a button and an air switch, and the button and the air switch are used for selectively conducting the start control loop; wherein,
The button and the air switch are arranged outside a safety level control cabinet of the high-temperature gas cooled reactor emergency diesel generator.
Optionally, the starting control loop comprises a power supply and a first control branch connected in parallel with the power supply, and the first control branch is connected with a coil of a first time relay in series;
the voltage frequency qualified signal simulation loop is connected with an auxiliary contact of the first time relay, a first terminal row and a coil of the first simulation relay in series; wherein,
The coils of the first terminal row and the first analog relay are arranged in a safety level control cabinet of the high-temperature gas cooled reactor emergency diesel generator;
the starting control loop further comprises a first monitoring branch connected with the first control branch in parallel, and the first monitoring branch is connected with a first signal lamp and an auxiliary contact of the first analog relay in series.
Optionally, the starting control loop further comprises a second control branch connected in parallel with the first monitoring branch, and the second control branch is connected with a coil of the first relay in series;
The emergency bus power-down signal simulation loop is connected with an auxiliary contact of the first relay, the second terminal block and a coil of the second simulation relay in series; wherein,
The coils of the second terminal block and the second analog relay are arranged in a safety control cabinet of the high-temperature gas cooled reactor emergency diesel generator;
the starting control loop further comprises a second monitoring branch connected with the second control branch in parallel, and the second monitoring branch is connected with a second signal lamp and an auxiliary contact of the second analog relay in series.
Optionally, the starting control loop further comprises a third control branch connected in parallel with the second monitoring branch, and the third control branch is connected with a coil of a second time relay in series;
The rated rotation speed simulation circuits comprise a first rated rotation speed simulation circuit, and the first rated rotation speed simulation circuit is connected with an auxiliary contact of the second time relay, a third terminal row and a coil of the third simulation relay in series; wherein,
The coils of the third terminal row and the third analog relay are arranged in a safety control cabinet of the high-temperature gas cooled reactor emergency diesel generator;
The starting control loop further comprises a third monitoring branch connected with the third control branch in parallel, and the third monitoring branch is connected with a third signal lamp and an auxiliary contact of the third analog relay in series.
Optionally, the starting control loop further comprises a fourth control branch connected in parallel with the third monitoring branch, and the fourth control branch is connected in series with a coil of a third time relay;
The rated rotation speed simulation circuits comprise a second rated rotation speed simulation circuit, and the second rated rotation speed simulation circuit is connected with an auxiliary contact of the third time relay, a fourth terminal row and a coil of a fourth simulation relay in series; wherein,
The coils of the fourth terminal row and the fourth analog relay are arranged in a safety control cabinet of the high-temperature gas cooled reactor emergency diesel generator;
The rotation speed simulated by the second rated rotation speed simulation loop is higher than the rotation speed simulated by the first rated rotation speed simulation loop;
The starting control loop further comprises a fourth monitoring branch connected with the fourth control branch in parallel, and the fourth monitoring branch is connected with a fourth signal lamp and an auxiliary contact of the fourth analog relay in series.
Optionally, the starting control loop further comprises a fifth control branch connected in parallel with the fourth monitoring branch, and the fifth control branch is connected in series with a coil of a fourth time relay;
The rated rotation speed simulation circuits comprise a third rated rotation speed simulation circuit, and the third rated rotation speed simulation circuit is connected with an auxiliary contact of the fourth time relay, a fifth terminal block and a coil of the fifth simulation relay in series; wherein,
The coils of the fifth terminal block and the fifth analog relay are arranged in a safety control cabinet of the high-temperature gas cooled reactor emergency diesel generator;
The rotation speed simulated by the third rated rotation speed simulation loop is higher than the rotation speed simulated by the second rated rotation speed simulation loop;
The starting control loop further comprises a fifth monitoring branch connected with the fifth control branch in parallel, and the fifth monitoring branch is connected with a fifth signal lamp and an auxiliary contact of the fifth analog relay in series.
Optionally, the starting control loop further comprises a sixth control branch connected in parallel with the fifth monitoring branch, and the sixth control branch is connected in series with a coil of a fifth time relay;
The rated rotation speed simulation circuits comprise a fourth rated rotation speed simulation circuit, and the fourth rated rotation speed simulation circuit is connected with an auxiliary contact of the fifth time relay, a sixth terminal block and a coil of the sixth simulation relay in series; wherein,
The coils of the sixth terminal block and the sixth analog relay are arranged in a safety control cabinet of the high-temperature gas cooled reactor emergency diesel generator;
the rotation speed simulated by the fourth rated rotation speed simulation loop is higher than the rotation speed simulated by the third rated rotation speed simulation loop;
The starting control loop further comprises a sixth monitoring branch connected with the sixth control branch in parallel, and the sixth monitoring branch is connected with a sixth signal lamp and an auxiliary contact of the sixth analog relay in series.
Optionally, the delay time of the first time relay is sequentially greater than the delay time of the fifth time relay, the delay time of the fourth time relay, the delay time of the third time relay and the delay time of the second time relay.
Optionally, the starting control loop is further connected with a fuse in series.
The static starting device for simulating the emergency diesel generator of the high-temperature gas cooled reactor comprises a starting control loop, a voltage frequency qualified signal simulation loop, an emergency bus power-off signal simulation loop and a plurality of rated rotation speed simulation loops, wherein the voltage frequency qualified signal simulation loop, the emergency bus power-off signal simulation loop and the rated rotation speed simulation loops are electrically connected with the starting control loop; and the starting control loop is used for controlling the emergency bus power-off signal simulation loop, the multiple rated rotation speed simulation loops and the voltage frequency qualified signal simulation loop to be sequentially conducted so as to simulate the static starting process of the high-temperature gas cooled reactor emergency diesel generator. According to the device disclosed by the embodiment of the disclosure, the starting control loop is arranged to control the emergency bus power-off signal simulation loop, the multiple rated rotation speed simulation loops and the voltage frequency qualified signal simulation loop to be sequentially conducted, so that the simulation of the whole static starting process of the emergency diesel generator can be simply and accurately realized, the complete verification of the emergency diesel generator starting logic loop is realized, and the time consumption is short; meanwhile, by setting the starting control loop, the static starting process of the emergency diesel generator can be monitored, the action condition of the starting logic of the emergency diesel generator can be observed in time, logic problems can be found conveniently and early, and the debugging period of the emergency diesel generator is shortened greatly.
Drawings
Fig. 1 is a schematic structural diagram of a static start device for simulating a high-temperature gas cooled reactor emergency diesel generator according to an embodiment of the disclosure.
Detailed Description
In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, the embodiments of the present disclosure are described in further detail below with reference to the accompanying drawings and detailed description.
As shown in fig. 1, an embodiment of the present disclosure provides a static start device 100 for simulating a high-temperature gas cooled reactor emergency diesel generator, which includes a start control loop 110, a voltage frequency qualified signal simulation loop 120, an emergency bus power-off signal simulation loop 130 and a plurality of rated rotation speed simulation loops, wherein the voltage frequency qualified signal simulation loop 120, the emergency bus power-off signal simulation loop 130 and the rated rotation speed simulation loops are electrically connected with the start control loop 110.
The starting control loop 110 is used for controlling the emergency bus power-off signal simulation loop 130, the multiple rated rotation speed simulation loops and the voltage frequency qualified signal simulation loop 120 to be sequentially conducted, so as to simulate the static starting process of the high-temperature gas cooled reactor emergency diesel generator.
According to the static starting device for the simulated high-temperature gas cooled reactor emergency diesel generator, provided by the embodiment of the invention, the starting control loop is arranged to control the emergency bus power-off signal simulation loop, the multiple rated rotation speed simulation loops and the voltage frequency qualified signal simulation loop to be sequentially conducted, so that the simulation of the whole static starting process of the emergency diesel generator can be simply and accurately realized, the complete verification of the emergency diesel generator starting logic loop is realized, and the time consumption is short; meanwhile, by setting the starting control loop, the static starting process of the emergency diesel generator can be monitored, the action condition of the starting logic of the emergency diesel generator can be observed in time, logic problems can be found conveniently and early, and the debugging period of the emergency diesel generator is shortened greatly.
Illustratively, the start control circuit 110 is connected in series with a button SA and an air switch F1, the button SA and the air switch F1 being configured to selectively turn on the start control circuit 110.
Specifically, when the button SA is pressed and the air switch F1 is turned off, the start control circuit 110 is turned on and electrified, and accordingly, the start control circuit 110 controls the emergency bus power-off signal simulation circuit 130, the plurality of rated rotation speed simulation circuits and the voltage frequency qualified signal simulation circuit 120 to be turned on sequentially, so as to simulate the static start process of the high-temperature gas cooled reactor emergency diesel generator.
The button SA and the air switch F1 are arranged outside the safety level control cabinet 200 of the high-temperature gas cooled reactor emergency diesel generator.
In this embodiment, the button SA is connected in series to the start control circuit 110, so that the start condition signal which is originally triggered by the signal by means of the shorting wire is externally connected to the button SA of the security level control cabinet 200, thereby avoiding the risk of mistakenly shorting other terminals by personnel due to the narrow operation space, and improving the probability of success of the test. In addition, by providing the air switch F1, when the current exceeds the rated current, the start control circuit 110 can be automatically turned off, thereby protecting the start control circuit.
As shown in fig. 1, the startup control loop 110 includes a power source and a first control branch 111a connected in parallel to the power source, wherein the first control branch 111a is connected in series with a coil of the KFT1 electric appliance.
The voltage frequency qualified signal simulation loop 120 is connected with the auxiliary contact KFT1-1 of the first time relay KFT1, the first terminal row 121 and the coil of the first simulation relay KA354 in series. The coils of the first terminal block 121 and the first analog relay KA354 are both disposed in the safety control cabinet 200 of the high-temperature gas cooled reactor emergency diesel generator.
Specifically, the first terminal rows 121 include two first terminal rows 121 electrically connected to the positive electrode of the power supply and the negative electrode of the power supply, respectively, wherein the inner terminal of each first terminal row 121 is connected to the power supply, and the outer terminal of each first terminal row 121 is electrically connected to the auxiliary contact KFT1-1 of the first time relay KFT 1. That is, the auxiliary contact KFT1-1 of the first time relay KFT1 is connected to a terminal of a voltage frequency qualified signal in the safety level control cabinet 200 of the high-temperature gas cooled reactor emergency diesel generator.
The start control loop 110 further comprises a first monitoring branch 111b connected in parallel with the first control branch 111a, the first monitoring branch 111b being connected in series with the first signal lamp PGG1 and the auxiliary contact KA354-1 of the first analog relay KA 354. The first signal lamp PGG1 is a green indicator lamp, and is used for feeding back the state of the first analog relay KA354 of the safety control cabinet 200 in the starting process, that is, when the first signal lamp PGG1 lights the green lamp, it is indicated that the voltage frequency qualification signal in the starting process of the emergency diesel generator is normal.
Specifically, when the air switch F1 is turned off and the button SA is pressed, the start control circuit 110 is turned on, and accordingly, the coil of the first time relay KFT1 is powered on, the auxiliary contact KFT1-1 of the first time relay KFT1 is turned on, so that the voltage frequency qualified signal simulation circuit 120 is turned on, the diesel generator starts to start, the coil of the first simulation relay KA354 is powered on, the auxiliary contact KA354-1 of the first simulation relay KA354 is turned on, the first signal lamp PGG1 is powered on, and then the voltage frequency qualified signal in the emergency diesel generator starting process is simulated to be normal.
It should be noted that, in the present embodiment, the delay time of the first time relay KFT1 is 20 seconds, that is, when the air switch F1 is turned off and the button SA is pressed, the auxiliary contact KFT1-1 of the first time relay KFT1 is closed after 20 seconds.
The starting logic of the emergency diesel generator can be triggered by one key through the lap joint of the KFT1 of the first time relay, so that the number of people required by the test is greatly reduced, and the operation is simple and convenient and is not easy to make mistakes; the auxiliary contact KA354-1 of the first analog relay KA354 which acts after the emergency diesel engine is started in the safety level control cabinet 200 is led to the first monitoring branch 111b in the starting loop, so that the static starting process of the emergency diesel engine can be monitored, the action condition of the emergency diesel engine starting logic can be observed in time, and the logic problem can be found conveniently and early; the universal relay and the time relay are used for overlapping the starting circuit, so that the cost is low and the practicability is high.
As shown in fig. 1, the startup control loop 110 further includes a second control branch 112a connected in parallel to the first monitoring branch 111b, and the second control branch 112a is connected in series with the coil of the first relay KA 1.
The emergency bus power-down signal simulation loop 130 is connected with an auxiliary contact KA1-1 of the first relay KA1, a second terminal block 131 and coils of the second simulation relay KA317 in series, wherein the coils of the second terminal block 131 and the second simulation relay KA317 are arranged in the safety control cabinet 200 of the high-temperature gas-cooled reactor emergency diesel generator.
Specifically, the second terminal rows 131 include two second terminal rows 131 electrically connected to the positive electrode of the power source and the negative electrode of the power source, respectively, wherein the inner terminal of each second terminal row 131 is connected to the power source, and the outer terminal of each second terminal row 131 is electrically connected to the auxiliary contact KA1-1 of the first relay KA 1. That is, the auxiliary contact KA1-1 of the first relay KA1 is connected to the terminal of the emergency bus power loss signal in the safety control cabinet 200 of the high-temperature gas cooled reactor emergency diesel generator.
The start control loop 110 further includes a second monitoring branch 112b connected in parallel with the second control branch 112a, wherein the second monitoring branch 112b is connected in series with the second signal lamp PGR1 and an auxiliary contact KA317-1 of the second analog relay KA 317.
The second signal lamp PGR1 is a red indicator lamp, and is used for indicating state feedback of the second analog relay KA317 in the safety control cabinet 200 in the starting process, that is, when the second signal lamp PGR1 lights the red light, it is indicated that an emergency bus power-off signal in the starting process of the emergency diesel generator is normal.
Specifically, when the air switch F1 is turned off and the button SA is pressed, the start control circuit 110 is turned on, and accordingly, the coil of the first relay KA1 is powered on, the auxiliary contact KA1-1 of the first relay KA1 is turned off, so that the emergency bus power loss signal simulation circuit 130 is turned on, the diesel generator starts to start, the coil of the second simulation relay KA317 is powered on, the auxiliary contact KA317-1 of the second simulation relay KA317 is turned on, the second signal lamp PGR1 is powered on, and then the emergency bus power loss signal in the emergency diesel generator starting process is simulated to be normal.
The starting logic of the emergency diesel generator triggered by one key can be realized through the lap joint of the first relay KA1, so that the number of people required by the test is greatly reduced, and the operation is simple and convenient and is not easy to make mistakes; the auxiliary contact KA317-1 of the second analog relay KA317 acting after the emergency diesel engine is started in the safety level control cabinet 200 is led to the second monitoring branch 112b in the starting loop, so that the static starting process of the emergency diesel engine can be monitored, the action condition of the emergency diesel engine starting logic can be observed in time, and the logic problem can be found easily and early; the universal relay and the time relay are used for overlapping the starting circuit, so that the cost is low and the practicability is high.
As shown in fig. 1, the startup control loop 110 further includes a third control branch 113a connected in parallel to the second monitoring branch 112b, and the third control branch 113a is connected in series with a coil of the second time relay KFT 2.
The plurality of rated rotation speed simulation loops include a first rated rotation speed simulation loop 140, and the first rated rotation speed simulation loop 140 is connected in series with the auxiliary contact KFT2-1 of the second time relay KFT2, the third terminal row 141 and the coil of the third simulation relay KA 369. The coils of the third terminal block 141 and the third analog relay KA369 are both disposed in the safety control cabinet 200 of the high-temperature gas cooled reactor emergency diesel generator.
In this embodiment, the first rated rotation speed simulation loop 140 is a < 3% rated rotation speed simulation loop, that is, a feedback for simulating a < 3% rated rotation speed signal when the emergency diesel generator is started.
Specifically, the third terminal rows 141 include two third terminal rows 141 electrically connected to the positive electrode of the power supply and the negative electrode of the power supply, respectively, wherein the inner terminal of each third terminal row 141 is connected to the power supply, and the outer terminal of each third terminal row 141 is electrically connected to the auxiliary contact KFT2-1 of the second time relay KFT 2. That is, the auxiliary contact KFT2-1 of the second time relay KFT2 is connected to a terminal of < 3% rated rotation speed signal in the safety control cabinet 200 of the high-temperature gas cooled reactor emergency diesel generator.
The start control loop 110 further includes a third monitoring branch 113b connected in parallel with the third control branch 113a, and the third monitoring branch 113b is connected in series with the third signal lamp PGG2 and the auxiliary contact KA369-1 of the third analog relay KA 369.
The third signal lamp PGG2 is a green indicator lamp, and is configured to indicate that the state feedback of the third analog relay KA369 in the safety control cabinet 200 during the starting process, that is, when the third signal lamp PGG2 lights the green lamp, it indicates that the < 3% rated rotation speed signal during the starting process of the emergency diesel generator is normal.
In this embodiment, the delay time of the second time relay KFT2 is 1 second, that is, when the air switch F1 is turned off and the button SA is pressed, the auxiliary contact KFT2-1 of the second time relay KFT2 is turned on after 1 second, and the emergency diesel generator starts to rotate at < 3% of the rated rotation speed.
The starting logic of the emergency diesel generator can be triggered by one key through the lap joint of the KFT2 of the second time relay, so that the number of people required by the test is greatly reduced, and the operation is simple and convenient and is not easy to make mistakes; the auxiliary contact KA369-1 of the third simulation relay KA369 which acts after the emergency diesel engine is started in the safety level control cabinet 200 is led to the third monitoring branch 113b in the starting loop, so that the static starting process of the emergency diesel engine can be monitored, the action condition of the emergency diesel engine starting logic can be observed in time, and the logic problem can be found conveniently and early; the universal relay and the time relay are used for overlapping the starting circuit, so that the cost is low and the practicability is high.
As shown in fig. 1, the startup control loop 110 further includes a fourth control branch 114a connected in parallel to the third monitoring branch 113b, and the fourth control branch 114a is connected in series with a coil of the third time relay KFT 3.
The plurality of rated rotation speed simulation loops include a second rated rotation speed simulation loop 150, and the second rated rotation speed simulation loop 150 is connected in series with the auxiliary contact KFT3-1 of the third time relay KFT3, the fourth terminal row 151 and the coil of the fourth simulation relay KA 375. The coils of the fourth terminal block 151 and the fourth analog relay KA375 are both disposed in the safety control cabinet 200 of the high-temperature gas cooled reactor emergency diesel generator.
The second rated rotational speed simulation circuit 150 simulates a rotational speed higher than that of the first rated rotational speed simulation circuit 140. In this embodiment, the second rated rotation speed simulation loop 150 is a rated rotation speed simulation loop of > 8%, that is, a feedback loop for simulating a rated rotation speed signal of > 8% when the emergency diesel generator is started.
Specifically, the fourth terminal rows 151 include two fourth terminal rows 151 electrically connected to the positive electrode of the power source and the negative electrode of the power source, respectively, wherein the inner terminal of each fourth terminal row 151 is connected to the power source, and the outer terminal of each fourth terminal row 151 is electrically connected to the auxiliary contact KFT3-1 of the third time relay KFT 3. That is, the auxiliary contact KFT3-1 of the third time relay KFT3 is connected to a terminal of > 8% rated rotation speed signal in the safety control cabinet 200 of the high-temperature gas cooled reactor emergency diesel generator.
The start control loop 110 further includes a fourth monitoring branch 114b connected in parallel with the fourth control branch 114a, the fourth monitoring branch 114b being connected in series with the fourth signal lamp PGG3 and auxiliary contacts of the fourth analog relay KA 375.
The fourth signal lamp PGG3 is a green indicator lamp, and is used for indicating feedback of the state of the fourth analog relay KA375 in the safety control cabinet 200 during the starting process, that is, when the fourth signal lamp PGG3 lights the green lamp, it indicates that the rated rotation speed signal of > 8% during the starting process of the emergency diesel generator is normal.
In this embodiment, the delay time of the third time relay KFT3 is 4 seconds, that is, when the air switch F1 is turned off and the button SA is pressed, the auxiliary contact KFT3-1 of the third time relay KFT3 is closed after 4 seconds, and the emergency diesel generator starts to rotate at > 8% of the rated rotation speed.
The starting logic of the emergency diesel generator can be triggered by one key through the lap joint of the KFT3 of the third time relay, so that the number of people required by the test is greatly reduced, and the operation is simple and convenient and is not easy to make mistakes; the auxiliary contact KA375-1 of the fourth analog relay KA375 which acts after the emergency diesel engine is started in the safety level control cabinet 200 is led to the fourth monitoring branch 114b in the starting loop, so that the static starting process of the emergency diesel engine can be monitored, the action condition of the emergency diesel engine starting logic can be observed in time, and the logic problem can be found conveniently and early; the universal relay and the time relay are used for overlapping the starting circuit, so that the cost is low and the practicability is high.
The startup control loop 110 further includes a fifth control branch 115a connected in parallel to the fourth monitoring branch 114b, and the fifth control branch 115a is connected in series with a coil of the fourth time relay KFT 4.
The plurality of rated rotation speed simulation loops include a third rated rotation speed simulation loop 160, and the third rated rotation speed simulation loop 160 is connected in series with the auxiliary contact KFT4-1 of the fourth time relay KFT4, the fifth terminal block 161 and the coil of the fifth simulation relay KA 371. The coils of the fifth terminal block 161 and the fifth analog relay KA371 are both disposed in the safety level control cabinet 200 of the high-temperature gas cooled reactor emergency diesel generator.
The third rated rotational speed simulation circuit 160 simulates a rotational speed higher than that of the second rated rotational speed simulation circuit 150. In this embodiment, the third rated rotation speed simulation loop 160 is a rated rotation speed simulation loop of > 10%, that is, a feedback for simulating a rated rotation speed signal of > 10% when the emergency diesel generator is started.
Specifically, the fifth terminal rows 161 include two fifth terminal rows 161 electrically connected to the positive electrode of the power supply and the negative electrode of the power supply, respectively, wherein the inner terminal of each fifth terminal row 161 is connected to the power supply, and the outer terminal of each fifth terminal row 161 is electrically connected to the auxiliary contact KFT4-1 of the fourth time relay KFT 4. That is, the auxiliary contact KFT4-1 of the fourth time relay KFT4 is connected to a terminal of > 10% rated rotation speed signal in the safety control cabinet 200 of the high-temperature gas cooled reactor emergency diesel generator.
The start control loop 110 further includes a fifth monitoring branch 115b connected in parallel with the fifth control branch 115a, the fifth monitoring branch 115b being connected in series with the fifth signal lamp PGG4 and the auxiliary contact KA371-1 of the fifth analog relay KA 371.
In this embodiment, the delay time of the fourth time relay KFT4 is 8 seconds, that is, when the air switch F1 is turned off and the button SA is pressed, the auxiliary contact KFT4-1 of the fourth time relay KFT4 is closed after 8 seconds, and the emergency diesel generator starts to rotate at > 10% of the rated rotation speed.
The fourth time relay KFT4 is overlapped, so that the start logic of the emergency diesel generator can be triggered by one key, the number of people required by the test is greatly reduced, and the operation is simple and convenient and is not easy to make mistakes; the auxiliary contact KA371-1 of the fifth analog relay KA371 which acts after the emergency diesel engine is started in the safety level control cabinet 200 is led to the fifth monitoring branch 115b in the starting loop, so that the static starting process of the emergency diesel engine can be monitored, the action condition of the emergency diesel engine starting logic can be observed in time, and the logic problem can be found conveniently and early; the universal relay and the time relay are used for overlapping the starting circuit, so that the cost is low and the practicability is high.
The startup control loop 110 further includes a sixth control branch 116a connected in parallel to the fifth monitoring branch 115b, and the sixth control branch 116a is connected in series with a coil of the fifth time relay KFT 5.
The plurality of rated rotation speed simulation circuits include a fourth rated rotation speed simulation circuit 170, and the fourth rated rotation speed simulation circuit 170 is connected in series with the auxiliary contact KFT5-1 of the fifth time relay KFT5, the sixth terminal block 171, and the coil of the sixth simulation relay KA 376. The coils of the sixth terminal row 171 and the sixth analog relay KA376 are both disposed in the safety control cabinet 200 of the high-temperature gas cooled reactor emergency diesel generator.
The fourth rated rotational speed simulation circuit 170 simulates a rotational speed higher than that of the third rated rotational speed simulation circuit 160. In this embodiment, the fourth rated rotational speed simulation loop 170 is a > 90% rated rotational speed simulation loop, that is, a feedback for simulating > 90% rated rotational speed signal when the emergency diesel generator is started.
Specifically, the sixth terminal rows 171 include two sixth terminal rows 171 electrically connected to the positive electrode of the power source and the negative electrode of the power source, respectively, wherein the inner terminal of each sixth terminal row 171 is connected to the power source, and the outer terminal of each sixth terminal row 171 is electrically connected to the auxiliary contact KFT5-1 of the fifth time relay KFT 5. That is, the auxiliary contact KFT5-1 of the fifth time relay KFT5 is connected to a terminal of > 90% rated rotation speed signal in the safety control cabinet 200 of the high-temperature gas cooled reactor emergency diesel generator.
The start control loop 110 further includes a sixth monitoring branch 116b connected in parallel with the sixth control branch 116a, the sixth monitoring branch 116b being connected in series with a sixth signal lamp PGG5 and an auxiliary contact KA376-1 of a sixth analog relay KA 376.
It should be noted that, in the present embodiment, the delay time of the fifth time relay KFT5 is 15 seconds, that is, when the air switch F1 is turned off and the button SA is pressed, the auxiliary contact KFT5-1 of the fifth time relay KFT5 is closed after 15 seconds, and the emergency diesel generator starts to rotate at > 90% of the rated rotation speed.
The starting logic of the emergency diesel generator triggered by one key can be realized through the lap joint of the KFT5 of the fifth time relay, so that the number of people required by the test is greatly reduced, and the operation is simple and convenient and is not easy to make mistakes; the auxiliary contact KA376-1 of the sixth simulation relay KA376 which acts after the emergency diesel engine is started in the safety level control cabinet 200 is led to the sixth monitoring branch 116b in the starting loop, so that the static starting process of the emergency diesel engine can be monitored, the action condition of the emergency diesel engine starting logic can be observed in time, and the logic problem can be found conveniently and early; the universal relay and the time relay are used for overlapping the starting circuit, so that the cost is low and the practicability is high.
Illustratively, the delay time of the first time relay KFT1 is sequentially greater than the delay time of the fifth time relay KFT5, the delay time of the fourth time relay KFT4, the delay time of the third time relay KFT3, and the delay time of the second time relay KFT 2. That is, when the air switch F1 is turned off and the button SA is pressed, the emergency bus power-off signal responds first, then the signals are sequentially corresponding to < 3% rated rotation speed signal, > 8% rated rotation speed signal, > 10% rated rotation speed signal and > 90% rated rotation speed signal, and the emergency diesel generator is indicated to gradually increase in rotation speed after being started, and finally the voltage frequency qualification signal responds. That is, when the air switch F1 is turned off and the button SA is pressed, the second signal PGR1, the third signal PGG2, the fourth signal PGG3, the fifth signal PGG4, the sixth signal PGG5, and the first signal PGG1 are sequentially turned on, and the emergency diesel generator static logic is successfully started.
According to the different delay time of setting up each time relay, can realize the static automatic start-up process of automatic simulation emergent diesel generator by one key, adopt the signal lamp can instruct each start signal to have the trouble, easy operation.
Illustratively, the startup control loop 110 is further connected in series with a fuse FU, which may protect the startup control loop 110.
Specifically, in this embodiment, an insulating plate is provided, 1 first relay KA1, 5 time relays KFT1 to KFT5, 6 indicator lamps PGG1 to PGG5, PGR1, 1 fuse FU, and 1 button SA are fixed respectively, and then the insulating plate is disposed in the safety control cabinet 200 of the high temperature gas cooled reactor emergency diesel generator, and the static automatic start process of the emergency diesel generator can be intuitively simulated by pressing the button SA.
It is to be understood that the above implementations are merely exemplary implementations employed to illustrate the principles of the disclosed embodiments, which are not limited thereto. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the embodiments of the disclosure, and these modifications and improvements are also considered to be within the scope of the embodiments of the disclosure.
Claims (6)
1. The static starting device for simulating the emergency diesel generator of the high-temperature gas cooled reactor is characterized by comprising a starting control loop, a voltage frequency qualified signal simulation loop, an emergency bus power-off signal simulation loop and a plurality of rated rotation speed simulation loops, wherein the voltage frequency qualified signal simulation loop, the emergency bus power-off signal simulation loop and the rated rotation speed simulation loops are electrically connected with the starting control loop;
The starting control loop is used for controlling the emergency bus power-off signal simulation loop, the rated rotation speed simulation loops and the voltage frequency qualified signal simulation loop to be sequentially conducted so as to simulate the static starting process of the high-temperature gas cooled reactor emergency diesel generator;
the starting control loop is connected in series with a button and an air switch, and the button and the air switch are used for selectively conducting the starting control loop; wherein,
The button and the air switch are arranged outside a safety level control cabinet of the high-temperature gas cooled reactor emergency diesel generator;
The starting control loop comprises a power supply and a first control branch connected in parallel with the power supply, and the first control branch is connected with a coil of a first time relay in series;
the voltage frequency qualified signal simulation loop is connected with an auxiliary contact of the first time relay, a first terminal row and a coil of the first simulation relay in series; wherein,
The coils of the first terminal row and the first analog relay are arranged in a safety level control cabinet of the high-temperature gas cooled reactor emergency diesel generator;
The starting control loop further comprises a first monitoring branch connected with the first control branch in parallel, and the first monitoring branch is connected with a first signal lamp and an auxiliary contact of the first analog relay in series;
The starting control loop further comprises a second control branch connected in parallel with the first monitoring branch, and the second control branch is connected with a coil of the first relay in series;
The emergency bus power-down signal simulation loop is connected with an auxiliary contact of the first relay, the second terminal block and a coil of the second simulation relay in series; wherein,
The coils of the second terminal block and the second analog relay are arranged in a safety control cabinet of the high-temperature gas cooled reactor emergency diesel generator;
The starting control loop further comprises a second monitoring branch connected with the second control branch in parallel, and the second monitoring branch is connected with a second signal lamp and an auxiliary contact of the second analog relay in series;
the starting control loop further comprises a third control branch connected in parallel with the second monitoring branch, and the third control branch is connected with a coil of a second time relay in series;
The rated rotation speed simulation circuits comprise a first rated rotation speed simulation circuit, and the first rated rotation speed simulation circuit is connected with an auxiliary contact of the second time relay, a third terminal row and a coil of the third simulation relay in series; wherein,
The coils of the third terminal row and the third analog relay are arranged in a safety control cabinet of the high-temperature gas cooled reactor emergency diesel generator;
The starting control loop further comprises a third monitoring branch connected with the third control branch in parallel, and the third monitoring branch is connected with a third signal lamp and an auxiliary contact of the third analog relay in series.
2. The apparatus of claim 1, wherein the start control loop further comprises a fourth control branch connected in parallel with the third monitoring branch, the fourth control branch being connected in series with a coil of a third time relay;
The rated rotation speed simulation circuits comprise a second rated rotation speed simulation circuit, and the second rated rotation speed simulation circuit is connected with an auxiliary contact of the third time relay, a fourth terminal row and a coil of a fourth simulation relay in series; wherein,
The coils of the fourth terminal row and the fourth analog relay are arranged in a safety control cabinet of the high-temperature gas cooled reactor emergency diesel generator;
The rotation speed simulated by the second rated rotation speed simulation loop is higher than the rotation speed simulated by the first rated rotation speed simulation loop;
The starting control loop further comprises a fourth monitoring branch connected with the fourth control branch in parallel, and the fourth monitoring branch is connected with a fourth signal lamp and an auxiliary contact of the fourth analog relay in series.
3. The apparatus of claim 2, wherein the start control loop further comprises a fifth control branch connected in parallel with the fourth monitoring branch, the fifth control branch being connected in series with a coil of a fourth time relay;
The rated rotation speed simulation circuits comprise a third rated rotation speed simulation circuit, and the third rated rotation speed simulation circuit is connected with an auxiliary contact of the fourth time relay, a fifth terminal block and a coil of the fifth simulation relay in series; wherein,
The coils of the fifth terminal block and the fifth analog relay are arranged in a safety control cabinet of the high-temperature gas cooled reactor emergency diesel generator;
The rotation speed simulated by the third rated rotation speed simulation loop is higher than the rotation speed simulated by the second rated rotation speed simulation loop;
The starting control loop further comprises a fifth monitoring branch connected with the fifth control branch in parallel, and the fifth monitoring branch is connected with a fifth signal lamp and an auxiliary contact of the fifth analog relay in series.
4. The apparatus of claim 3, wherein the start control loop further comprises a sixth control branch connected in parallel with the fifth monitoring branch, the sixth control branch being connected in series with a coil of a fifth time relay;
The rated rotation speed simulation circuits comprise a fourth rated rotation speed simulation circuit, and the fourth rated rotation speed simulation circuit is connected with an auxiliary contact of the fifth time relay, a sixth terminal block and a coil of the sixth simulation relay in series; wherein,
The coils of the sixth terminal block and the sixth analog relay are arranged in a safety control cabinet of the high-temperature gas cooled reactor emergency diesel generator;
the rotation speed simulated by the fourth rated rotation speed simulation loop is higher than the rotation speed simulated by the third rated rotation speed simulation loop;
The starting control loop further comprises a sixth monitoring branch connected with the sixth control branch in parallel, and the sixth monitoring branch is connected with a sixth signal lamp and an auxiliary contact of the sixth analog relay in series.
5. The apparatus of claim 4, wherein the delay time of the first time relay is sequentially greater than the delay time of the fifth time relay, the delay time of the fourth time relay, the delay time of the third time relay, and the delay time of the second time relay.
6. The device of any one of claims 1 to 5, wherein the actuation control loop is further connected in series with a fuse.
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